109results about How to "Meet the actual needs of production" patented technology

The invention relates to the farmland water conservancy field, in particular to a spraying and dripping irrigating system for fruit trees. The spraying and dripping irrigating system mainly comprises a water source, a front hub, a trunk tube, a dry tube, a spraying and dripping irrigating branch tube, a spray head and a dripping head, wherein the front hub mainly comprises a water pump, a fertilizer applying tank, a filter, a control valve and a pressure meter; the trunk tube is communicated with the dry tube; a water outlet pile is further arranged on the dry tube; water in the dry tube is filtered and then conveyed to the ground branch tube through the water outlet pile; the control valve is arranged at the connecting part between the water outlet pile and the ground branch tube; a three-phase valve is arranged on the upstream of the branch tube. The spraying and dripping irrigating system is reasonable in design, simple in structure, beneficial to irrigation and fertilization, capable of regulating the field microclimate, suitable for irrigating in a frozen period, and not prone to salt accumulation. Compared with the prior art, the spraying and dripping irrigating system is simple and convenient to operate, is economical and practical, is more suitable for practical production needs and is capable of further improving the water-saving efficiency of dripping irrigation.

The invention discloses a pile shoe structure for retractable drilling platforms. The structure comprises a top sealing plate, a bottom sealing plate, a retractable steel skeleton, a movable shoe side-wall shell and a hydraulic device, wherein the top sealing plate is an upper foxed plate arranged below a pile leg, and the bottom sealing plate is a lower fixed plate which is arranged at the lower part of a pile shoe and formed into a pile tip of the pile shoe; the steel skeleton is arranged below the top sealing plate, and in a retractable cage structure consisting of a plurality of steel members; the movable shoe side-wall shell can cooperate with the retractable formation of the steel skeleton of the pole shoe so as to increase the pressure bearing area of the pile shoe and prevent soil bodies around the pile shoe from entering the pile shoe; and a control system of the hydraulic device is arranged at a ballasting control center of a platform, and used for transmitting a shoe retraction instruction to the hydraulic device through hydraulic pipelines laid along the pile leg, then realizing the automatic retraction of the steel skeleton through cooperating with the ballasting control of the platform. By using the pile shoe structure disclosed by the invention, the problem of puncturing existing in the process of carrying out pile driving on a self-elevating drilling platform and the problem of difficult pile extracting existing in the process of withdrawing the self-elevating drilling platform are solved.

The invention discloses a preparation method of lithium difluorophosphate. The preparation method comprises the following steps: adding LiPF6 into a carbonic eater turbid liquid of carbonate at the first heating temperature; reacting to obtain the lithium difluorophosphate (LiPO2F2) at the second heating temperature, wherein the second heating temperature is higher than the first heating temperature. The preparation method provided by the invention has the advantages that the process is simple, the cost is low and the prepared product is high in purity.

The invention discloses a preparation method of delta-type manganese dioxide and application of delta-type manganese dioxide to removal of trivalent arsenic from water through oxidation, and solves the problems of complex process, high running cost, and low treatment efficiency of trivalent arsenic in the conventional technology for treating water polluted by trivalent arsenic. The delta-type manganese dioxide is prepared from a potassium permanganate solution and a manganese sulfate solution, and water containing trivalent arsenic is subjected to conventional water treatment by using delta-type manganese dioxide. The delta-type manganese dioxide prepared from potassium permanganate and manganese sulfate has a large specific surface area, is high in electronegativity, and is easy to participate and separate; and trivalent arsenic can be effectively oxidized to be removed from water by using delta-type manganese dioxide. The application of delta-type manganese dioxide has the advantages of high oxidization and removal efficiency, simple process, flexibility and convenience in operation and low running cost.

A motor reversing driving reciprocating pump comprises a motor reversing belt transmission reciprocating pump body or a motor reversing chain transmission reciprocating pump body or a motor reversing gear transmission reciprocating pump body or a motor direct driving type pin roller screw transmission reciprocating pump body or a motor direct driving type ball screw transmission reciprocating pump body or a motor direct driving type rack transmission reciprocating pump body. A motor serves as a power machine and is controlled through a motor control cabinet, so that the operation states, namely the speed regulation and the steering of the motor, of the motor are accurately controlled; the reciprocating motion of the reciprocating pump or a reciprocating compressor is achieved through the forward and backward reversion of the motor, so that the automatic operation with long stroke, low jig frequency, large capacity, high pressure and high efficiency of the reciprocating pump or the reciprocating compressor is achieved, the reliability of the motor reversing driving reciprocating pump is greatly improved, and the service life of the motor reversing driving reciprocating pump is greatly prolonged.

The invention discloses a heuristic one-dimensional blanking method based on a stratified random search algorithm. The method includes: A, using a parameterized model to signify one-dimensional blanking problems; B, preprocessing billets for combination; C, obtaining various stock layout modes through the stratified random search algorithm combined by random search and deep search; D, picking out an optimal stock layout mode according to a heuristic rule; E, adding the optimal stock layout mode and a time which does not exceed the current needed maximum time of reusing the billets into a current stock layout scheme, and updating a billet set to be laid; F, repeating processes of C, D and E until the total length of the billets to be laid less than the length of raw materials, and outputting the current stock layout scheme; and G, repeating processes of B, C, D, E and F for many times, and then performing compared screening on all stock layout schemes so as to obtain an optimal stock layout scheme. The heuristic one-dimensional blanking method based on the stratified random search algorithm can avoid blindness of a traditional random search algorithm and is high in computation speed, and the obtained stock layout scheme adapts to practical production needs.

The invention relates to a full-automatic covered edge sewing machine which comprises a rack, a worktable and a machine head. The worktable is installed above the rack, the machine head is provided with a sewing needle for sewing a material with the edge to be covered, an X-axis mechanism, a Y-axis mechanism, a W-axis mechanism, a compression plate mounting seat, a compression plate, a binding tape feeding mechanism, a binding tape cutting mechanism and a unloading mechanism are installed above the worktable, the worktable is provided with a feeding station, a material sewing station and a material unloading station according to the working procedures, the X-axis mechanism, the Y-axis mechanism and the W-axis mechanism drives the compression plate to compress the material and move the material from the feeding station to the material sewing station, the binding tape feeding mechanism synchronously delivers binding tapes to the material sewing station, the binding tapes are sewn on the side of the material by using the sewing needle to achieve edge covering, the binding tape cutting mechanism cuts off too long binding tapes, the material with the edge covered is fed into the unloading station and is pushed and moved out of the worktable by the unloading mechanism.

The invention discloses a waste heat recovery device and a control method of a refrigeration system for realizing multi-temperature zone water supply. The device includes a heat recovery circuit connected in parallel on the condensation side of the refrigeration system, and also includes a heat pump system, a water supply system, a first water outlet (100) and a second water outlet (200); cooling, while the heat recovery loop utilizes the heat of the refrigeration system to heat the water and output it from the first water outlet (100); the heat recovery loop is also connected to the heat pump system to realize the heating of the heat pump system to the output water of the heat recovery loop; and, the heat The water heated by the recovery loop also heats and subcools the heat pump system. The present invention utilizes the characteristics that the food processing industry needs water supply in multiple temperature zones, combines the refrigeration system, the replenishment water supply system and the heating system, and through one-time water supply, not only realizes low, medium and high temperature water supply, but also improves the refrigeration system and Efficiency of the heat pump system.

The invention provides a preparation method of a modified sepiolite supported nano iron material, solving the problems of the conventional supported nano iron material, such as complicated preparation process, high raw material price and poor high-temperature resistance performance. The preparation method comprises the following steps of: 1, acidizing, activating and calcining sepiolite powder to obtain modified sepiolite; 2, preparing a FeSO4-sepiolite mixed solution; and 3, adding a KBH4 aqueous solution into the FeSO4-sepiolite mixed solution, stirring under the protection of nitrogen, filtering, washing and drying to finally obtain the modified sepiolite supported nano iron material. According to the invention, the preparation method is simple, the used raw materials are low in price and easy to get, the production is carried out at normal pressure and temperature and the practical production requirements are met; and the prepared modified sepiolite supported nano iron material can effectively remove nonbiodegradable organic pollutants out of water bodies, and the tannin removal rate is high up to 91.4% and direct fast black removal rate is high up to 98.9%.

The present invention is polyether type modified polyurethane sole and its making process. The materials for the polyether type polyurethane sole include polyether polyol, chain expander, water, surfactant and catalyst to form one mixture system. The polyether type polyurethane sole is made through adding stuffing into the mixture system to form the stuffing modified component, reacting the stuffing modified component and the pre-polymer to prepare stuffing modified polyurethane material, and other steps. The present invention has reduced dependence of product performance on the polyether material, and modifying with stuffing possessing physical cross-linking effect can raise the mechanical performance of the polyether type polyurethane sole.

The invention relates to a multifunctional comprehensive cutting device for a plasma plate tube. The multifunctional comprehensive cutting device comprises a frame, wherein an air compressor and a plasma arc cutting machine are arranged on one side of the frame; tracks are respectively fixed on left and right sides of the upper surface of the frame; a cutting trolley is in rolling connection with each track; a cutting sprayer is fixedly connected with the cutting trolley; a manual pressing leveling mechanism is arranged on the inner wall of the right side of the frame; at least two fastening bolts are in vertical threaded connection with an upper fixing plate; a steel plate supporting platform parallel to the tracks is arranged in the frame; a controller and a shifting device close to the track on the left side are fixedly connected with the front side of the frame; the shifting device comprises a worm and gear reduction box, a rotating control motor, a three-jaw chuck and two mounting plates; a clamping leveling mechanism is connected with the three-jaw chuck. The multifunctional comprehensive cutting device for the plasma plate tube has the advantages of wide application scope, convenience in operation, low production cost, capability of realizing the cutting at any bevel angle of the plate tube, high production efficiency and capability of realizing the pattern cutting of the plate tube.

The invention discloses a preparing method of a [Bmim] BF4 dispersed nano-iron particle and relates to a preparing method of iron particles. According to the preparing method, soluble ferrous iron or trivalent iron is dissolved in distilled water (or mixed liquor of distilled water and ethyl alcohol) in a salting-in mode by adding of a certain dispersing agent and with the liquid phase chemical reduction method to form ferric salt solution, iron ions are then directly reduced to zero-valent iron by means of a reducing agent with a strong reducing property such as hydroboron, the product obtained in this way is treated with vacuum drying after being filtered and washed, and then a nano-iron powder material with good dispersing performance and a nanometer microstructure is obtained. The nano-iron particle prepared with the method is spherical, small in diameter, small in particle size range and oxidation resistant. The nano-iron particle is good in dispersing performance, and therefore the problem that nano-iron particles are agglomerated easily is effectively solved. The product is high in purity and small and even in diameter, the technology is simple and easy to control, the method can be carried out at normal temperatures and pressures, and actual production requirements are met.

The invention relates to a mixed scheduling system for a steam pipe network based on pipe network calculation and belongs to the technical field of mixed scheduling for the steam pipe network. The mixed scheduling system comprises a relation database server, a real-time database server, an application server and an engineer station, wherein the relation database server is connected with the engineer station and the application server; except being connected with the relation database server, the application server is also connected with a real-time database and the engineer station; the data exchange among the application server, the real-time database and the engineer station is kept; an application module comprises a relational database, a data acquisition module, a data result display module, a pipe network model calculating module and a pipe network scheduling module; the data result display module is arranged at the engineer station; the pipe network model calculating module and the pipe network scheduling module are arranged on the application server; the relational database is arranged on the relation database server; and the data acquisition module is arranged at the real-time database. The mixed scheduling system has the advantages that the system is more suitable for the actual requirement of enterprise production, and pipe network model calculation and scheduling scheme are utilized to mutually verify on the basis of a scheduling model, so as to realize the accuracy and instantaneity of scheduling strategy.

The invention provides a method for displaying and detecting void type defects in a Czochralski silicon wafer, and the void type defects are displayed by utilizing polyhedron copper precipitation. The method for displaying the void type defects in the Czochralski silicon wafer comprises the following steps of: immersing a polished silicon wafer into a copper nitrate solution for standing; rinsing the silicon wafer in deionized water, taking out and airing; performing heat treatment on the silicon wafer after copper precipitation and airing; quickly cooling the silicon wafer after heat treatment; and horizontally placing the silicon wafer after cooling in a preferential etching solution for etching. The invention further provides the method for detecting the void type defects in the Czochralski silicon wafer, and the method comprises the following steps of: preparing a silicon wafer sample according to the method; and directly observing the polished surface of the silicon wafer sample by an optical microscope or a scanning electron microscope. The polyhedron copper precipitation observed under the microscope corresponds to the void type defects. According to the method provided by the invention, the void type defects in the Czochralski silicon wafer can be clearly displayed within a shorter period of time, the observation can be conveniently performed by adopting the conventional optical microscope under common environments, and the method is suitable for detecting the void type defects in the Czochralski silicon wafer in industrial production.

The invention discloses an intelligent assembly process design method based on morpheme division and an artificial neural network. The method comprises two parts of assembly process knowledge expression and assembly process knowledge reasoning, and mainly comprises the following steps of: 1) dividing assembly process knowledge morphemes; 2) constructing, storing and expressing an assembly structure tree; 3) constructing an assembly process knowledge base; 4) calculating and comparing assembly structure tree structure similarity; 5) carrying out multi-constraint matching and retrieval on the assembly process knowledge; and 6) matching the intelligent weight adjustment with the auxiliary knowledge of the artificial neural network training model. According to the method, repeated manual laborof technicians can be reduced; the error-tolerant rate in the process design engineering is improved; the time cost in an assembly process design project is saved, the production efficiency is improved, and meanwhile, in order to establish an assembly process knowledge base, in combination with the reasoning ability of people and support an automatic assembly process design method, more comprehensive and effective guidance can be provided for assembly process design, and the assembly process design efficiency and accuracy are improved.

The invention relates to a fountain solution centralized allocation and supply circular cooling device, which at least comprises a fountain solution preparation part, a fountain solution cooling part, a fountain solution circulating part and an alarming function part. The main functions of the four parts are as follows: 1, fountain solution preparation, namely needed reagents are mixed and added according to a certain ratio so as to meet production needs; 2, fountain solution cooling, namely the mixed reagent is cooled and is stirred by a circulating pump to prevent nonuniform cold and heat; 3, fountain solution circulating, which is to better realize the flowing and circular utilization of the fountain solution; and 4, alarming, namely the alarming system is to give an alarm in case of abnormal conditions so as to ensure the device operates steadily and soundly. When the device is used, the centralized allocation and supply circular cooling function of the fountain solution can be realized, the production efficiency and production site cleanness can be improved directly, and the intelligent, accurate, standard and high-efficiency management of enterprises can be directly improved.

The invention discloses a purifying process for quartz raw materials for ultra-clear glass. The purifying process sequentially comprises the following procedures of 1 breaking, 2 magnetic separation, 3 calcining, 4 mixed acid leaching and 5 washing and drying, wherein in the breaking step, the quartz raw materials are crushed into particles with the grain size of 0.1-0.8 mm through a crusher; in the magnetic separation step, magnetic separation is carried out on the crushed quartz sand materials through a high-intensity magnetic field; in the calcining step, the crushed quartz sand materials after the magnetic separation are calcined in a muffle furnace; in the mixed acid leaching step, the calcined crushed quartz sand materials are leached in an inorganic mixed acid solution; in the washing and drying step, the leached quartz sand materials are washed through deionized water, and then dehydration and drying are carried out. The purifying process is remarkable in purification effect, easy, safe and fast, and suitable for industrial production.

The invention discloses a three-dimensional model two-dimensional nested placement method based on three-dimensional printing. The method comprises the following operation steps: S100: the three-dimensional model has attributes in X, Y and Z directions, placing the three-dimensional model on a two-dimensional plane only having the attributes in X, Y and Z directions, projecting the three-dimensional model perpendicular to an XY plane to obtain a contour polygon of the model, and calculating according to the contour polygon to obtain an angle suitable for placing each model in the plurality ofmodels; S200, determining a model placement sequence after the contour polygon is solved; S300, according to the determined model placement sequence, sequentially placing the models according to a certain angle, and obtaining a placement result; and S400, repeating the previous step S300 for multiple times to obtain a plurality of instance results, and selecting the optimal instance result as thefinal result. According to the method, more models can be placed on the same platform, more parts can be printed at the same time, the production efficiency is greatly improved, and the actual production requirements can be met.

The invention discloses a product inspection data acquisition device. The device comprises a data acquisition terminal and a three-dimensional visual inspection module. The data acquisition terminal scans a bar code of a to-be-detected product through the bar code scanning module, obtains inspection information of the to-be-detected product, and transmits the obtained inspection information to thethree-dimensional visual inspection module, and the three-dimensional visual inspection module completes inspection of the to-be-detected product. The three-dimensional visual inspection module further comprises an inspection task management module, a user management module, an inspection execution module, a lightweight model display module and an inspection log module. According to the device, visualization of product inspection and informatization of quality data can be achieved, product quality detection, analysis and management are combined, and actual production requirements are met.

The invention discloses a motor direct-drive type ball screw transmission reciprocating pump. The motor direct-drive type ball screw transmission reciprocating pump comprises a motor control cabinet,a left piston cylinder, a right piston cylinder, a left piston, a right piston, a motor, a ball nut, a ball screw shaft, suction valves and discharge valves. The left piston and the right piston are arranged in the two piston cylinders and are symmetric. The motor is arranged between the two piston cylinders. The ball nut is arranged at the center of a motor rotor. The ball screw shaft is arrangedat the center of the ball nut and is in threaded fit with the ball nut. The suction valves and the discharge valves are arranged on the peripheries of the respective outer ends of the two piston cylinders. Each of the suction valves and the discharge valves is composed of a valve seat and a valve element. Each valve element is of a solid structure and comprises a valve rod and a valve bonnet provided with a notch, wherein the valve bonnet is matched with a column core cavity in the upper portion of the valve seat, and two circular holes are formed in the top of the valve seat. The motor direct-drive type ball screw transmission reciprocating pump can achieve the long-stroke and low-stroke-time reciprocated motion, and the production actual requirement is met; transmission is stable, the bearing force is large, efficiency is high, and noise is low; and automatic control is achieved through motor reversing drive, and the work efficiency is improved.

The invention provides a transformer oil chromatographic data comprehensive analysis and defect prediction system and method. Discrimination research on oil chromatography invalid data is carried outfrom two dimensions of single data and combined data, the disadvantage of the high misjudgment rate of a single method is avoided, and the credibility of online monitoring data is improved; multiple predictive models are comprehensively used to carry out trend prediction of oil chromatography online monitoring data, and the accuracy of prediction is improved; and a transformer fault combination diagnostic technology is proposed, and the low-energy latent fault can be found as early as possible. According to the transformer oil chromatographic data comprehensive analysis and defect prediction system and method, while the latest industry standard is complied, various data analysis methods are comprehensively used, systematic research on abnormality discrimination, trend prediction, fault diagnosis and transformer status comprehensive evaluation of the transformer oil chromatographic data is carried out, the labor intensity of a management department is effectively reduced, the latent faults for operating a transformer can be timely discovered, business data support is provided for transformer health state assessment and maintenance decision making, the occurrence of sudden accidentsis avoided, and safe operation of a power grid is ensured.

The invention discloses a polyurethane material based on carbon dioxide copolymer polyalcohol, belonging to the field of polyurethane sole materials. A polyalcohol component A and an isocyanate component B are fully mixed, poured, foamed and demolded to prepare polyurethane micropore elastic body sole, wherein the polyalcohol component is formed by the mixing of carbon dioxide polymer polyalcohol, a foaming agent, a foam stabilizer, a catalyst, a chain extender according to a definite proportion, the isocyanate component is prepared by the reaction of carbon dioxide polymer polyalcohol, a chain extender and isocyanate according to a certain proportion under controlled conditions. Compared with polyether and polyester type sole material, the polyurethane sole material has excellent hydrolysis resistance performance of polyether type polyurethane sole and wear-resistance and high strength of polyester type polyurethane sole, can solve the problems of low polyether strength, no abrasion resistance and no hydrolysis resistance of polyester. In addition, the carbon dioxide polymer polyalcohol adopted by the polyurethane material is synthesized by taking carbon dioxide as the main raw material; the raw material has low cost; and therefore, the polyurethane material has wide market application space.

The invention discloses an HPAA nano-iron particle dispersing method and relates to an iron particle dispersing method. The nano-iron particle material prepared with the method belongs to nomo-metal materials prepared with the chemical method. According to the HPAA nano-iron particle dispersing method, soluble ferrous iron or trivalent iron is dissolved in distilled water (or mixed liquor of distilled water and ethyl alcohol) in a salting-in mode by adding of a certain dispersing agent and with the liquid phase chemical reduction method to form ferric salt solution, iron ions are then directly reduced to zero-valent iron by means of a reducing agent with a strong reducing property such as hydroboron, the product obtained in this way is treated with vacuum drying after being filtered and washed, and then a nano-iron powder material with good dispersing performance and a nanometer microstructure is obtained. The nano-iron particle prepared with the method is spherical, small in diameter, small in particle size range and oxidation resistant. The method is simple and easy to realize, the whole technological process is easy to control, the method can be carried out at normal temperatures and pressures, the problem of agglomeration of nano-iron is solved, and actual production requirements are met.

The invention relates to a preparation method of iron nanoparticles, in particular to a preparation method of ClO3- ionic liquid dispersed iron nanoparticles. According to the method, by adding certain dispersant, soluble ferrous or ferric iron salt is dissolved in distilled water (or mixture of distilled water and ethyl alcohol) to form iron salt solution by means of liquid-phase chemical reduction; reducing agent with strong reducibility, such as hydroboron, is directly used to reduce iron ions into zero-valent iron; a product is filtered and washed and vacuum-dried so as to obtain well-dispersible iron nano-powder material with the nano-micro structure. The iron nanoparticles prepared are spherical with small diameter and narrow particle size range and have certain oxidation resistance. The iron nanoparticles prepared by the method are well dispersible, and the problem that iron nanoparticles agglomerate easily is solved effectively. The products are high in purity and small and even in particle size, the process is simple and easy to control, the preparation method is performed under normal temperature and normal pressure, and actual production needs are met.

The invention relates to the field of irrigation and water conservancy, and an evaluation method of drip irrigation uniformity. The evaluation method comprises the following steps: randomly selecting a field part of land for drip irrigation, selecting a rectangular measurement center of irrigation uniformity; uniformly setting eight soil moisture measurement points around a sideline of the rectangular measurement center; irrigating the irrigation area; measuring the soil moisture of a position 0-80 cm below each moisture measurement point 2 respectively, performing the measurement once every 20 cm in depth; calculating a standard deviation s of the soil moisture at different depths of 0 cm, 20 cm, 40 cm, 60 cm and 80 cm respectively; evaluating the drip irrigation uniformity according to the standard deviation s of the soil moisture, wherein the evaluation grade comprises four grades of being excellent, good, common and poor. The evaluation method is simple and convenient in operation, economical and practical, the provided irrigation water utilization coefficient evaluation is relatively accurate, and the water-saving efficiency of drip irrigation is further improved.

The invention discloses a thick-walled tube saddle port cutting mould, and a formation method and an application method thereof. The thick-walled tube saddle port cutting mould comprises an n-shaped supporting platform, wherein the supporting platform is provided with a trolley track, the trolley track is provided with a semi-automatic cutting machine trolley, a turning tire is arranged below the supporting platform, the turning tire is symmetrical to the centre and provided with two rollers used for supporting a thick-walled tube and driving the thick-walled tube to rotate, and a flame cutting nozzle on the semi-automatic cutting machine trolley is vertical to the wall of the thick-walled tube on the turning tire. The thick-walled tube saddle port cutting mould, provided by the invention, has the advantages of low cost, simple operation, easy implementation, good cutting effect and high processing quality, cutting of all kinds of curves on the thick-walled tube is lightly completed, the vices of poor manual cutting shape are avoided, the problems of too high price and the like caused by a numerical control abnormal cutting machine are avoided, and the quality requirements of sequential processes are ensured.

The invention relates to the technical field of tobacco curing equipment, in particular to a cyclically solar-heated tobacco curing barn. In the cyclically solar-heated tobacco curing barn, an upper air vent and a lower air vent are provided between a curing chamber and a heating chamber, a tobacco hanger for hanging tobacco is disposed in the curing chamber, and the wall of the curing chamber is provided with a louver moisture exhaust; a methanol combustion heater and a cyclic fan are disposed in the heating chamber, and the methanol combustion heater is disposed below the cyclic fan; the lower portion of a dewatering chamber is communicated with the louver moisture exhaust of the curing chamber, the upper portion of the dewatering chamber is communicated with an upper end of the heating chamber, and a dewatering device, a water drainer and an air intake auto-adjusting port are arranged in the dewatering chamber, the water drainer is disposed below the dewatering device, and the air intake auto-adjusting port is arranged in a wall of the dewatering chamber. A roof of the tobacco curing bar is also provided with a solar generator. The methanol is used as a clean energy source to cure the tobacco at a low cost without emission of smoke dust and sulfur dioxide, so that the requirement on energy conservation and environment protection is met.

The invention relates to a preparation method of a normal temperature crosslinking aluminum crosslinker for a shale gas fracturing fluid. The preparation method includes the steps: firstly, dissolvingaluminum ion auxiliaries in water to prepare first mixed solution; heating the first mixed solution to reach the temperature of 50-80 DEG C, stirring the first mixed solution and adding an organic matter serving as a complex ligand to obtain second mixed solution; secondly, performing thermostatic reaction on the second mixed solution for 2-4 hours and keeping the second mixed solution clear andtransparent; adding pH (potential of hydrogen) regulators into the second mixed solution and adjusting the pH value of the second mixed solution to be 6.0-8.0 to obtain faint yellow homogeneous transparent liquid. The pH of the crosslinker prepared by the preparation method is 6-8, and corrosion of oil pipe equipment and the like is reduced. Effective crosslinking components are released at normaltemperature and can be crosslinked with low-concentration hydrolytic polyacrylamide in fracturing construction to form a stable gel system, the crosslinker has performances such as strong viscous elasticity, high temperature resistance and high salinity resistance, a most permeable zone can be limitedly plugged, water injection effects are improved, and gas well recovery ratio is increased.

The invention discloses a method for treating high-salt organic wastewater by activating peroxymonosulfate with magnetic copper oxide, belonging to the technical field of water pollution control. In this method, a magnetic copper oxide catalyst, which is synthesized simply in one step, is used to activate peroxymonosulfate to produce singlet oxygen with strong oxidizability as the active oxidationspecies, so as to remove refractory organic matter from high-salinity organic wastewater. Compared with the peroxymonosulfate water treatment technology which produces sulfate radical and hydroxyl radical, the singlet oxygen produced by this method is less easily affected by inorganic salts in water, the catalyst activity is stronger, and it is more beneficial to the treatment of saline organic wastewater. The method is applicable to the treatment of various saline organic wastewater, can efficiently remove organic pollutants in a wide pH range, has the simply prepared catalyst, convenient operation, low price and easy magnetic separation, and has great application potential in the field of saline organic wastewater treatment.