34results about How to "Easy to filter and separate" patented technology

The invention discloses a turbo-charged self-cleaning efficient filter. The turbo-charged self-cleaning efficient filter comprises a rotating shaft, a filter element and a filter housing, wherein thefilter element is mounted in the filter housing; the upper end of the filter element is connected with a water distributor; the lower end of the filter element is connected with an automatic slag discharge device; the bottom end of the automatic slag discharge device is connected with a slag discharge pipe; a pre-filtration water pressurizing chamber is formed in the filter element; the rotating shaft is vertically mounted in the pre-filtration water pressurizing chamber; the top end of the rotating shaft penetrates a guide pipe and is connected with a motor; an upper rotating turbine and a lower rotating turbine are mounted on the rotating shaft; and the filter element consists of an upper lock cap, a lower lock cap, an embedded framework, an inner filter cartridge, a filter screen skeleton, a stainless steel tube, an embedded groove, an activated carbon layer and an outer filter cartridge. The turbo-charged self-cleaning efficient filter is simple in structure, convenient to operateand good in filtering effect, brings convenience for a water flow to quickly penetrate the filter element to be filtered, and avoids the situation that the filtering efficiency is reduced by blockageof the filter element; and step-by-step filtration and adsorbing purification of dirt are realized, and the dirt collection effect of the automatic slag discharge device is improved.

The invention provides a method for preparing light calcium carbonate from carbide slag as a raw material. The method comprises following steps: (1), performing slurrying to remove toxins and foul smell; (2), performing filtration and dissolution separation; (3), performing spraying carbonization; (4), performing drying and powder grinding, or performing washing, drying and powder grinding or performing spray drying to obtain the product. The method is simple to operate, free of secondary pollution, easy to implement and low in energy consumption, main raw materials only comprise industrial residue carbide slag and CO2 captured in carbon capture and emission reduction projects, the cost is low, and the method has market competitiveness; a large quantity of limestone resources can be savedindirectly, and therefore, environmental protection and blue sky and green water social engineering construction are facilitated.

The invention provides a device and process for purifying fried food waste oil based on a continuous mode, and relates to the technical field of edible oil treatment. The device comprises a shell, anoil inlet pipe, a first oil outlet pipe, a second oil outlet pipe, an overturning body located in the shell, and an overturning mechanism; filters are arranged at the oil inlet ends, located in the shell, of the first oil outlet pipe and the second oil outlet pipe; an oil suction cavity is formed in the overturning body, a first oil suction port and a second oil suction port which are communicatedwith each other are formed in the two ends of the overturning body respectively, and valve mechanisms in a normally-closed state are arranged at the first oil suction port and the second oil suctionport respectively; when the overturning body acts, the first oil suction port is attached to the filter at the oil inlet end of the first oil outlet pipe, the valve mechanism at the position is opened, or the second oil suction port is attached to the filter at the oil inlet end of the second oil outlet pipe, and the valve mechanism at the position is opened; and the oil suction cavity is communicated with an external negative pressure pump pipeline. Edible waste oil obtained after deep frying of food is used is subjected to efficient impurity removal treatment, so recycling of the edible waste oil is facilitated.

The invention discloses a novel steel shot automatic recovery device, and belongs to the technical field of shot blasting machines. One end of a device shell is buckled with an upper cover, the surface of the upper cover is fixedly connected with a feeding pipe, the other end of the device shell is fixedly connected with a discharging pipe, and the inner wall of the device shell is fixedly connected with a sorting box and a buffer sleeve; and a filter plate is hinged to the bottom of the sorting box through a hinge, and the filter screen is arranged in middle of the filter plate. According to the novel steel shot automatic recovery device, impact force added by steel shots can be ingeniously converted into vibration force of the filter screen through the arranged inclined filter plate, so that not only is the screening efficiency between the steel shots and scrap iron impurities improved, but also meshes of the filter screen can be prevented from being blocked; and a spiral flow guide pipe and a buffer sleeve are arranged, so that the steel shots can be prevented from falling down disorderly and colliding with a device shell or other parts, the steel shots fall to the bottom of a recycling device in order, and damage cannot be generated in the recycling process.

The invention discloses a machining part automatic filter device. The machining part automatic filter device comprises a CNC machining center, wherein a plurality of adjustable support legs are fixedly installed at the bottom of the CNC machining center at equal intervals, a water tank is fixedly mounted on the side, away from a cabinet door, of the CNC machining center, and a conduction pipe is fixedly installed at a water outlet of the water tank; and the water tank fixedly communicates with the CNC machining center through the conduction pipe. The machining part automatic filter device is different from the prior art, and a filter element can be fixed effectively through arrangement of a clamping member, so that offset falling off, caused by vibration, of the filter element is avoided,and normal filtration separation is not affected; meanwhile, the filter element can be disassembled and installed conveniently while effective fixing of the filter element is ensured, and meanwhile, water circulation of a separated coolant can be performed automatically through arrangement of a water circulation component, so that the efficiency of filtration separation of sweeps is improved effectively; and no manpower is required, and great convenience is brought to the staff.

The invention relates to a method for synthesizing vinyl benzoate, which is characterized by comprising the following steps of: adding benzoic acid and vinylacetate in a molar ratio of 1:(3-11) and a catalyst into a reaction kettle, heating, stirring, and reacting and refluxing for several hours to obtain reaction liquid containing the vinyl benzoate, wherein the catalyst is a supported Pd / C solid catalyst. The method is simple, equipment investment is small, energy consumption and material consumption are low, the selectivity of the vinyl benzoate is high, the production process is safe and environment-friendly, the catalyst can be repeatedly used, and the production cost is effectively reduced.

The invention discloses environment-friendly multistage sewage treatment equipment which comprises a workbench, a precipitation tank, an adsorption pipe and a separation pipe, the precipitation tank and the adsorption pipe are respectively installed at two ends of the top of the workbench, and the precipitation tank and the adsorption pipe are connected through a pipeline. The upper part of the adsorption pipe is provided with a separation pipe along the length direction, and the bottom of one end of the separation pipe and the adsorption pipe are in through connection through a connection tube; the inner middle end of the separation pipe is rotatably provided with a reticular centrifugal cylinder; and the inner part of the centrifugal cylinder is rotatably provided with a rotating frame. Activated carbon particles can be used circularly and reciprocally, can save the cost of sewage purification and are more environmentally friendly. At the same time, the flowing activated carbon particles have better adsorption effect than static activated carbon, are free and convenient to replace, fast to clean and improve the purification efficiency.

The invention relates to a method for synthesizing vinyl benzoate, which is characterized by comprising the following steps of: adding benzoic acid and vinylacetate in a molar ratio of 1:(3-11) and a catalyst into a reaction kettle, heating, stirring, and reacting and refluxing for several hours to obtain reaction liquid containing the vinyl benzoate, wherein the catalyst is a supported Pd / C solid catalyst. The method is simple, equipment investment is small, energy consumption and material consumption are low, the selectivity of the vinyl benzoate is high, the production process is safe and environment-friendly, the catalyst can be repeatedly used, and the production cost is effectively reduced.

The invention belongs to the technical field of chemical equipment and relates to a purification and preparation device of solid sodium methoxide. After solid sodium hydroxide and methanol are stirred and dissolved, in the precipitation process, a mixed solution needs to be subjected to static precipitation for 7-12 hours, the precipitation process is slow, and mass production of sodium methoxide is not facilitated. The invention just aims to solve the above problem. According to the technical schemes of the invention, the purification and preparation device comprises a precipitation barrel, an inner ring seat is arranged in the precipitation barrel, a plurality of functional tables are fixedly connected to the outer wall of the inner ring seat and are circumferentially distributed at equal intervals, an annular supporting frame is fixedly connected between every two functional tables, a supporting rod is fixedly connected to the outer wall of the lower side of each annular supporting frame, a vibration box is fixedly connected to the other end of each supporting rod, a rectangular groove is formed in the outer wall of one side of each vibration box, and an ultrasonic generator is movably connected to the inner wall of each rectangular groove. The ultrasonic generators are used for driving the precipitation barrel to vibrate at low frequency, so that solids in the precipitation barrel are lowered, the precipitation effect in the precipitation barrel is improved, and the overall time is shortened.

The invention belongs to the technical field of synthetic compounds. The invention provides a binuclear cadmium complex. The binuclear cadmium complex is characterized in that substituted phenol and N,N-bis(3-aminopropyl)-2-pyridine methylamine are used as raw materials, lead ions with large coordination number are used as a template, and a coordination condensation reaction is performed to obtain a lead complex; a lead complex and cadmium sulfate are mixed, lead ions in the complex are replaced, the binuclear cadmium complex is obtained, the replaced lead ions form lead sulfate precipitates, and subsequent filtering separation is facilitated. The preparation method provided by the invention is simple, core steps are coordination condensation reaction and replacement reaction, and the target complex can be efficiently prepared. Experiments prove that the prepared binuclear cadmium complex and nitric oxide can form a stable compound, a detection limit is low, and the binuclear cadmium complex can be used for preparing nitric oxide fluorescent probe products.

The invention relates to a treatment system for automobile part production raw materials. The treatment system comprises a feeding system, wherein a lifting system is arranged at the right side of the feeding system, a discharging pipe is arranged on the upper part of the right side of the lifting system, a mashing system is installed at the right side of the discharging g pipe, a filter plate is installed on the lower part of the mashing system, a collection system is installed on the lower part of the filter plate, and a discharge pipe is arranged at the right side of the collection system; an upper power system is installed on the upper part of the lifting system, and a power system shaft is arranged on the lower part of the upper power system; and a power system support is arranged at the right side of the mashing system, a lower power system is installed on the upper part of the power system support, an upper roller is installed at the right side of the upper part of the mashing system, and a lower roller is installed on the lower part of the upper roller. The treatment system disclosed by the invention is capable of effectively carrying out crushing treatment on the automobile part production raw materials, capable of obtaining the needed automobile part production raw material powder conveniently after filtering, capable of filtering and separating the raw materials conveniently, capable of carrying out drying treatment as needed conveniently, and convenient to use.

The active carbon loaded cuprous iodide provided in this invention can be used as the catalyst of sulfur-alkylation reaction between dialkyldithio and aromatic compound, which is processed by dipping active carbon in ethanol / hydrosolvent of bluestone and iodine or bluestone and potassium iodide then to be recovered by formaldehyde, SO, H2SO3 or sodium hyposulfite.

The invention discloses a raw material crushing device for cosmetic production and machining. The device comprises a supporting base, moving rollers, a braking vane, a raw material collecting barrel, a raw material filtering plate, a fixed hanging plate, a spring supporting column, a damping telescopic spring, a supporting vertical frame, a barrel body support and a rotary crushing device, wherein the rotary crushing device comprises a crushing motor, a crushing transmission shaft, a lifting hydraulic rod, a rotary crushing shaft, a rotary crushing blade, a raw material crushing barrel, a sealing cover plate, a sealing discharging plate, a locking buckle and a buckle connecting block. The invention belongs to the technical field of cosmetic production, particularly relates to the raw material crushing device for cosmetic production and machining, effectively solves the problems that an existing raw material crushing device for cosmetic production and machining is poor in crushing effect, and it is inconvenient to filter and separate crushed raw materials, achieves the purposes that the crushing effect of the crushing device is good, and the crushed raw materials can be conveniently filtered and separated, and is the very practical raw material crushing device for cosmetic production and machining.

The kitchen waste pretreatment method comprises the following steps: stamping and crushing, and stamping and sorting; stamping and crushing, namely washing the kitchen waste with water while crushing the kitchen waste, filtering and collecting the washing water, and feeding the kitchen waste which is not filtered into the stamping and sorting step; and stamping and sorting, namely washing the crushed kitchen waste with water while sorting, filtering and collecting the washed water, and filling residues which do not pass through the filtration. Through water washing, the oil extraction rate can be greatly improved, interference of oil to the pretreatment system is reduced, and the treatment efficiency of the whole system is greatly improved.

The invention discloses a drilling equipment for clutch production, which relates to the technical field of clutch drilling equipment; in order to facilitate the cleaning of clutch discs while drilling; it specifically includes a mounting frame, and a drilling hole is installed on the outer wall of one side of the mounting frame The outer wall of one side of the installation frame is equipped with a separation chamber through the support frame, the outer wall of the top of the separation chamber is welded with a bearing platform, the outer wall of one side of the installation frame is installed with a motor through a motor seat, and the output end of the motor is connected through a coupling There is a rotating main shaft; the top side wall of the rotating main shaft is fixed with a supporting frame carrying a clutch disc through screws. In the present invention, by setting the drilling mechanism, the motor and the rotating main shaft, the clutch plate can be rotated to complete the drilling work in multiple places, and by setting the support frame, the drip frame and the first brush head, the clutch plate can be rotated while the support frame carries the clutch plate. , using the drip rack and the first brush head to brush the surface of the clutch plate.

The invention discloses a method for treating a washing solution in a vat olive green T-T imine condensation section, which comprises the following steps of: a mixture in a sulfuric acid adjusting tank is added into a first-stage elutriation leaching tank, and deionized water is added into a last-stage elutriation leaching tank; a mixture leached and elutriated by each stage of elutriation leaching tank is filtered and separated, liquid serves as leaching and elutriation leaching liquid of the previous stage, and solid enters leaching and elutriation of the next stage; wherein the liquid filtered and separated by the first-stage elutriation and leaching tank enters the settling tank, and the solid filtered and separated by the last-stage elutriation and leaching tank enters the next working section; and a settling reaction is carried out in the settling tank, copper sulfate in a liquid state filtered and separated by the first-stage elutriation leaching tank is converted into copper hydroxide precipitate, filtering separation is carried out, sodium bromide and sodium sulfate are extracted from the liquid state through evaporation and concentration, and copper hydroxide is converted into copper oxide through solid state heating decomposition. The recyclable catalyst copper oxide and the side reaction product sodium bromide are recycled, the washing water is recycled, the production cost is reduced, and zero emission of the T-imine condensation section is achieved.

The invention provides a device and process for purifying waste oil of fried food based on a continuous and uninterrupted method, and relates to the technical field of edible oil treatment. a turning body and a turning mechanism; a filter device is arranged at the oil inlet end of the first oil outlet pipe and the second oil outlet pipe in the casing; an oil suction cavity is arranged inside the turning body, and the two ends are respectively provided with a first oil suction port and a second oil suction port that communicate with each other. The oil suction port, the first oil suction port and the second oil suction port are all provided with a valve mechanism in a normally closed state; when the turning body moves, the first oil suction port is fitted with the filter device at the oil inlet end of the first oil outlet pipe, and The valve mechanism here is open, or the second oil suction port is fitted with the filter device at the oil inlet end of the second oil outlet pipe, and the valve mechanism here is open; the oil suction chamber is communicated with the external negative pressure pump pipeline. High-efficiency decontamination treatment of edible waste oil after fried food is used to facilitate the recycling and reuse of edible waste oil.

The invention discloses a method for producing HCl gas from chlorosilane raffinate, and belongs to the field of resource utilization of chlorosilane raffinate in the polysilicon industry. The present invention adopts the mode that the stirred reactor and the absorption tower are used together, the residual liquid of chlorosilane is hydrolyzed in the stirred reactor, and the H produced by the hydrolysis of the residual liquid is 2 , HCl gas and unreacted SiCl 4 , SiHCl 3 、SiH 2 Cl 2 After the volatile gas is fully absorbed by the absorption tower, more than 99% of the chlorine is absorbed in the form of hydrogen chloride, and the tail gas is discharged up to the standard after alkali washing. The generated HCl gas can be returned to the synthesis process of trichlorosilane, and the decomposed dilute hydrochloric acid is used as the absorbent of the system of the present invention, realizing the resource recycling of chlorine. The invention realizes the effective recovery and resource utilization of chlorine in the chlorosilane raffinate, reduces the amount of chloride ions entering subsequent sewage treatment devices, and reduces the cost of factory wastewater treatment.

The invention relates to a process for purifying quartz materials and preparing aluminum fluoride and high-purity white carbon black by using by-product fluosilicic acid. After pickling and removing impurities, high-purity quartz products are obtained. During this process, HF and SiO 2 Reaction to SiF 4 and hydrolyzed to H 2 SiF 6 ; then put H 2 SiF 6 After purification, react with aluminum hydroxide to obtain high-purity white carbon black products and high-purity aluminum fluoride products. In this way, the scientific and rational utilization of the by-product fluosilicic acid solution and the maximum benefit are realized, and its economic benefit and social benefit are remarkable.

The invention discloses a solid particle separating device for medicine production. The solid particle separating device comprises a base and a separating box body, the middle of the top of the base is rotationally arranged at the bottom of the separation box body through a rotating mechanism, wherein the separation box body is internally provided with a first filter screen and a second filter screen which are sequentially arranged from inside to outside, the second filter screen and the third filter screen are divided into a first compartment and a second compartment, a third separation chamber and a fourth separation chamber, wherein the first separation chamber and the second separation chamber, the top of the third separation chamber is respectively connected with a first filter pressing plate through two groups of electric push rods penetrating through the side wall of the separation box body respectively, a second pressure filter plate and a third filter press plate, the top andthe bottom of the fourth compartment are respectively provided with a feed port and a discharge port with a gate valve, the first separation chamber and the second separation chamber, the bottom of the third compartment is provided with a discharge port with a gate valve, and the third compartment is subjected to layer-by-layer filtration and falling. The layer-by-layer separation is carried out according to the size of the substance particles, filtration and separation are convenient, particle residues in the separation box body are effectively reduced, and waste is reduced.

The invention belongs to the technical field of synthetic compounds. The invention provides a kind of binuclear cadmium complex. The invention uses substituted phenol and N,N-bis(3-aminopropyl)-2-pyridylmethylamine as raw materials, and uses lead ions with a large coordination number as a template to carry out The lead complex was obtained through the coordination condensation reaction; the lead complex was mixed with cadmium sulfate, and the lead ions in the complex were replaced to obtain a binuclear cadmium complex. The replaced lead ions formed lead sulfate precipitates, which facilitated subsequent filtration and separation . The preparation method provided by the invention is simple, the core steps are coordination condensation reaction and displacement reaction, and the target complex can be prepared efficiently. It is verified by experiments that the binuclear cadmium complex and nitric oxide prepared by the invention can form a stable complex with a low detection limit, and can be used to prepare nitric oxide fluorescent probe products.

The invention discloses a preparation method of perindopril arginine salt of a gamma-crystal form. The preparation method comprises the following steps of: dissolving perindopril and L-arginine in water; adding an organic solvent after stirring and dissolving the perindopril and L-arginine; heating up the mixture until the mixture is refluxed; distributing water by utilizing a water distributor until no water enters the water distributor; cooling a reaction liquid to the room temperature for carrying out suction filtration; and drying the filter cake to obtain the perindopril arginine salt of the gamma-crystal form. According to the preparation method of the perindopril arginine salt of the gamma-crystal form disclosed by the invention, the organic solvent is added for refluxing and distributing water; the water is extracted by the solvent, so that no water exists in the reaction liquid, and therefore, the water molecule is not packaged by the target product to form a spherical shape, and the suction filtration and separation are easy; and meanwhile, the water is separated out, the yield of the product is 92% or higher.

The invention discloses a filtering machine which comprises a filtering cabin and a cabin cover, wherein the cabin cover is hinged with one side of the upper end surface of the filtering cabin by using a hinge; a spherical filtering net is arranged in the center above the upper end of the filtering cabin; the middle part of the outer surface of the spherical filtering net is sleeved by a sleeve ring in a horizontal state; first rotating bases are fixedly connected with both sides of the outer circular surface of the sleeve ring; second rotating bases are arranged corresponding to the first rotating bases on both sides of the upper end of the filtering cabin; Z-shaped connecting rods are connected between the second rotating bases and the first rotating bases close to each other; a rotatingshaft is connected to one end inside the second rotating base on one Z-shaped connecting rod; the other end of the rotating shaft extends out of the filtering cabin and is connected with a power component; openings are formed in end surfaces of the upper end and the lower end of the spherical filtering net; a feeding door and a discharge door are respectively mounted at the openings. The filtering machine is capable of rapidly and efficiently filtering and separating materials, and is simple and convenient to operate in the use process, and convenient to use.

The invention discloses an aquatic animal water sampling device, and belongs to the technical field of sampling devices. The aquatic animal water sampling device comprises a suitcase, the suitcase comprises a bearing half box and a supporting half box which are hinged to each other, so that the bearing half box and the supporting half box can cover each other, and the bearing half box and the supporting half box can be arranged at a right angle; a sampling mechanism is arranged in the bearing half box and is provided with a soft water inlet pipe, the water inlet pipe is detachably provided with a water sampling container, the supporting half box is provided with a lifting pull rod, the top of the lifting pull rod is provided with a lifting hook, and the water sampling container can be detachably hung on the lifting hook; a plurality of moving wheels are arranged on the surface of the bearing half box. Through the arrangement, the technical problems that an existing sampling device is low in integration level and inconvenient to move are solved.

The invention provides a coffee feed liquid freeze concentration method and device. The coffee feed liquid freezing and concentrating device comprises: a barrel body, wherein the top side of the barrel body is in a sealed state, the bottom side of the barrel body is provided with an opening, two partition plates are fixedly installed in the barrel body, and the two partition plates divide the inner space of the barrel body into a freezing and heat preservation chamber, a crystallization chamber and a separation chamber. a feeding opening, wherein the feeding opening is formed in the top side of the barrel body, and the feeding opening is communicated with the freezing heat preservation chamber; a plurality of crystallization pipes, wherein the crystallization pipes are arranged in the crystallization chamber, the top ends of the crystallization pipes are communicated with the freezing heat preservation chamber, and the bottom ends of the crystallization pipes are communicated with the separation chamber; and a rotating plate, wherein the rotating plate is rotatably mounted on the bottom side of the barrel body, and the rotating plate is connected with the separation chamber in a sealed mode. The coffee feed liquid freeze concentration method and device provided by the invention have the advantages of simple structure and good concentration effect.

The invention discloses a fish and vegetable symbiotic culture pond facilitating feeding and sorting and a using method thereof. The fish and vegetable symbiotic culture pond comprises a culture pond body, a liquid discharging pipe is arranged on the surface of one side of the culture pond body, a material storage barrel is fixed to the top end of the inner side of the culture pond body, a material discharging pipe is fixed to the lower end of the inner side of the material storage barrel, a first electromagnetic valve is arranged on the outer side of the material discharging pipe in a sleeving mode, a material distributing block is fixed to the lower surface of the material storage barrel through a supporting rod, and a first material distributing opening and a second material distributing opening are formed in the outer surface of the material distributing block. By arranging the material storage barrel, the material discharging pipe, the first electromagnetic valve, the material distributing block, the first material distributing opening and the second material distributing opening, frequent manual feeding is avoided, the convenient effect of feeding is conveniently improved, fish feed is easily dispersed through the device, and by arranging a strapping tape, a plastic-coated cloth barrel, a fish placing pipe and a pressing block, it is avoided that when fish schools are transferred to appear on the market, the fish schools need to enter a sorting line through fishing and time and labor are wasted, and the device can conveniently and rapidly guide the fish schools into the sorting line through the plastic-coated cloth barrel.

The invention discloses a preparation device of silver ion foam lotion, and relates to the technical field of stirring devices for foam lotion preparation, and the preparation device comprises a stirring cabin used for storing and mixing liquid medicine; the medicine mixing cabin is positioned at the top end of the stirring cabin and is clamped with the top end of the stirring cabin; the stirring mechanism is positioned on the inner side of the stirring cabin; the filtering mechanism is positioned on the inner side of the medicine mixing cabin; the stirring mechanism comprises a stirring rod, the stirring rod is located in the middle of the inner side of the stirring cabin, and a sliding lifting cavity is fixedly connected to the middle of the inner side of the stirring rod. The device has the beneficial effects that prepared liquid can be conveniently stirred and mixed in the washing liquid preparation process, bubbles generated by liquid medicine can be conveniently extruded and filtered while stirring and mixing are conducted, the smoothness of the foam of the washing liquid can be easily improved, herb filtering and separation can be conveniently conducted on the liquid medicine needing to be heated, and the use effect is good. And the medicine inlet valve can be conveniently opened in the process of separating the Chinese herbal medicines for producing the liquid medicine.

The invention belongs to the technical field of synthetic compounds. The invention provides a tetranuclear copper complex. The invention uses substituted phenol and N,N-bis(3-aminopropyl)-2-pyridylmethylamine as raw materials, and a lead ion with a large coordination number as a template. A lead complex was obtained by a coordination condensation reaction; the lead complex was mixed with copper sulfate, and the lead ions in the complex were replaced to obtain a tetranuclear copper complex, and the replaced lead ions formed lead sulfate precipitation, which was convenient for subsequent Separated by filtration. The preparation method provided by the invention is simple, the core steps are coordination condensation reaction and displacement reaction, and the target complex can be prepared efficiently. It is verified by experiments that the tetranuclear copper complex and nitric oxide prepared by the invention have an obvious reversible reaction, and can be used to prepare nitric oxide regulator products.

The invention discloses a method for preparing soluble meltable copolymerized polyimide molding plastic. The method comprises the following steps: preparing polyamide acid from 2,3,3',4'-diphenyl ether pyromellitic dianhydride(a-ODPA), 4,4'-diaminodiphenyl ether(4,4'-ODA) and 1,4-p-phenylenediamine(1,4-PDA) in a ternary polymerization manner together with a mixture of aromatic bianhydride and aromatic diamine through equal molar ratio reaction at room temperature, subsequently adding acetic anhydride, triethylamine and xylene to perform chemical imidization, subsequently filtering, washing in acetone, filtering, drying, screening through a sieve of 100 meshes so as to obtain a copolymerized polyimide powder material, and subsequently performing thermal treatment for 2-3 hours at 220-280 DEG C so as to completely imidize. The prepared copolymerized polyimide powder material has the logarithmic viscosity number of 40ml / g to 110ml / g, the 10wt% loss temperature is 577 DEG C, the retention rate of the tensile strength, the compression strength and the bending strength of a plastic component at 220 DEG C is not greater than 3-5% of that of a homopolymer without 1,4-PDA, and the thermal weight loss temperature and Tg are both increased by 11-12 DEG C.