30results about How to "Improve the environmental index" patented technology

The invention discloses an environment-friendly solvent universal glue and a preparation method thereof. The best weight ratio of the universal glue is 9% of starburst SBS thermoplastic styrene-butadiene rubber, 2% of linear SBS thermoplastic styrene-butadiene rubber, 7% of rosin, 9.5% of hydrogenated rosin, 4% of C9 petroleum resin, 6% of a tackifying resin, 15% of No. 6 extraction solvent oil, 30% of methylal, 15% of methyl acetate, 0.2% of a wetting agent, 0.8% of an anti-aging agent, 0.5% of an antioxidant and 1.0% of a softening agent. The environment-friendly solvent universal glue has the comprehensive superiorities of low VOC, high solid content, no heavy metals, low smell, excellent initial adhesion, excellent cohesive strength, excellent permanent adhesion, excellent heat-resistant and ageing-resistant performance, short drying time, long opening time, large spraying area per weight (glue economization), and the like, has the advantages of reducing environment pollution, improving operation and construction environment, being low cost and low smell, and the like, is widely used in plate decoration industries of aluminum-plastic plates, clamping plates, density plates, paint-free plates, polymer plates, metal sheets, and the like, and is particularly suitable for applications in green high-grade decoration industries.

The invention discloses a capping device and method for an iron mixing vehicle. The capping device comprises a steel structure welded and fixed to a driven end rack. A hydraulic station and an electrical device are installed on the steel structure. A rotating vehicle frame device is installed on the steel structure through a rotating shaft so that the rotating vehicle frame device can rotate relative to the steel structure with the rotating shaft as the center after being stressed. A walking beam device is installed at the upper portion of the rotating vehicle frame device. By means of the capping device and method for the iron mixing vehicle, heat losses of molten iron in the transporting and waiting processes can be obviously reduced, pollutants such as smoke discharged into the atmosphere can also be effectively reduced, the environment-friendliness index of the iron mixing vehicle is increased, the purposes of energy saving and environment friendliness are achieved, the capping device is low in price, convenient to install and maintain, easy to operate and suitable for application and popularization.

The invention discloses asphalt pavement pit slot repairing capsules and a preparation and construction method thereof. The asphalt pavement pit slot repairing capsules are obtained by taking a material which is easy to crack at high temperature as a shell, and a mixture of asphalt and a heating medium as a core, and wrapping with an aggregate; the raw materials comprise in percentage by mass: 7%-12% of road petroleum asphalt, 7%-12% of the heating medium, 15%-40% of alginate-calcium chloride polymer and 40%-60% of the aggregate. An obtained asphalt mixture is encapsulated and transported in bagged forms, so that the energy consumption of the hot-mixed asphalt mixture in the transportation process is reduced, and meanwhile, the problem of poor storage stability of the hot-mixed asphalt mixture is effectively solved. Besides, by means of the construction method for conducting microwave or electromagnetic heating repairing on pit slots in asphalt concrete pavements through the repairingcapsules in combination with induction heating technology, on the premise that the pavement and mechanical properties of the asphalt concrete pavement are not reduced, rapid repair and preventive maintenance of asphalt concrete pavements can be achieved, the economical efficiency is good, and the use performance of the asphalt pavements is improved.

The invention relates to a microwave heating vehicle for accurately repairing pavement diseases. The microwave heating vehicle comprises a vehicle body, a repairing mechanism, a compacting mechanism,a control system and a hydraulic system, the repairing mechanism comprises a preheating part and a heating material part. The preheating part is composed of a position receiver, a hydraulic oil cylinder, an infrared heater and a shielding cover surface, and the repairing part is composed of a temperature sensor, a repairing mechanical arm mechanism, a discharging port and a microwave heating box.The compaction mechanism comprises a compaction roller, a compaction control hydraulic cylinder, a compaction swing rod and a compaction guide rail; the control system is mainly characterized in thata computer controls a case to realize various control functions; the hydraulic system is mainly used for achieving various motions and rotation of the infrared heater, the repairing mechanical arm mechanism and the compacting mechanism. The induction heating technology is used in cooperation with the asphalt pavement pit slot repairing capsule to conduct microwave heating repairing on the pit slotin the asphalt concrete pavement, the maintenance project progress is accelerated, and the pit slot repairing quality is greatly improved.

The invention discloses a preparation method of a catalyst for synthesizing methyl methacrylate. A ZSM-5 molecular sieves as a carrier, and an active center Au, and a transition metal and a lanthanidemetal are loaded on the molecular sieve; the prepared catalyst is good in catalytic effect, the conversion rate of methylacrolein is increased while the activity of the catalyst is improved, and theselectivity of methyl methacrylate is improved.

The invention provides environmental-friendly high-adhesion putty powder and relates to the technical field of architectural chemical coatings. The environmental-friendly high-adhesion putty powder disclosed by the invention mainly comprises the following raw material components in parts by weight: 200-350 parts of gypsum, 20-30 parts of pregelatinized starch, 10-15 parts of starch mud, 3-10 partsof carboxymethyl cellulose, 8-15 parts of hydroxypropyl methyl cellulose, 5-10 parts of lauryl sodium sulfate, 3-4 parts of hydroxyethyl cellulose, 5-8 parts of organic polymers, 10-20 parts of bentonite and 10-20 parts of ground limestone superfine powder. According to the putty powder formula disclosed by the invention, the wall adhesion of putty is improved, a high environmental protection index is ensured, and the putty powder can be completely adhered to the wall and is very firm.

Provided is a special putty powder; water-proof powder is added, so that a scraped putty sample plate is excellent in water resistance, ageing resistance and freezing resistance, the service life is equivalent to that of a ceramic tile, the putty sample plate is more environment-friendly than an emulsion paint, does not crack, does not peel off and is high in ageing resistance, and the putty sample plate does not fade, crack or blister after standing for half a year at low temperature; nitrate killing powder is added, so that a putty layer scraped by the prepared special putty powder is not easy to crack, blister and peel; the special putty powder has high adhesion to the wall surface, and can be used for inner and outer walls; the wall surface scraped by the prepared special putty powderdirectly forms a whole, the wall surface is waterproof and free of cracks, and compared with a wall block made of a ceramic tile, the wall block is firmer in bonding, free of block falling and cracking permanently and high in environmental protection index; when the air humidity is high, the special putty powder can absorb moisture in the air and reduce the humidity; when the air is dry, the wallbody can automatically release water; certain fireproof performance is also realized.

The invention relates to an extraction method of abamectin. The process comprises the following steps: firstly, extracting abamectin residue by a dynamic ultrasonic extraction method, concentrating the obtained extracting solution into an extract, desugaring by extracting the extract through a cloud point extraction method, centrifuging for phase separation to obtain a surfactant phase and a waterphase, performing back extraction on the surfactant phase by a microwave-assisted extraction method, crystallizing the obtained back extract liquor by a gradient cooling crystallization method, carrying out centrifugal separation, and drying to obtain the abamectin finished product. The dynamic ultrasonic extraction is combined with the cloud point extraction for desugar, the microwave-assisted method for back extraction and the gradient cooling crystallization for extraction and purification of abamectin, so that the use of organic solvents is reduced, production costs are lowered, the environmental protection index is improved, and the process steps are simplified, and the extraction efficiency, extraction yield and product weight of abamectin are greatly improved.

The invention discloses an environment-friendly colorful jade-imitated solid surface material and a production method thereof. The environment-friendly colorful jade-imitated solid surface material is prepared from, by mass, 27-30% of composite acrylic-based resin, 63-70% of reinforcement aggregates, 0.15-0.35% of catalysts, 0.15-0.45% of a curing agent, 0.05% of an ultraviolet absorber and 0.02-0.05% of a coloring agent, wherein the sum of mass percents of the raw materials is 100%. The solid surface material is rich pattern, uniform in internal and external distribution of textures, free of solvent residues and deformation, odorless, high in hardness and superior in physical and chemical performance.

An analytical composite material and a preparation method thereof comprise the following ingredients: starch, a plasticizer, cellulose, chitin, diphenylketone, p-benzoquinone, carbonyl compound and polypropylene carbonate. The preparation method comprises the following steps: adjusting the rotating speed of a mixing machine to 1,100-3,500r / min, adding starch, polypropylene carbonate and the plasticizer into the mixing machine, mixing for 8-15min and then adding cellulose, chitin and diphenylketone; adjusting the rotating speed of the mixing machine to 2,100-5,100r / min, adding p-benzoquinone and carbonyl compound and mixing for 5-10min; sealing and storing for about 12-25h after the mixture is naturally cooled; extruding the stored mixture at one time by a twin-screw extruder, placing a drum granulator, adjusting the speed of the drum granulator to 220-350r / min and granulating, so as to obtain the analytical composite material.

The invention relates to the technical field of gloss paint, and in particular relates to natural environment-friendly plant gloss oil. The natural environment-friendly plant gloss oil is characterized by comprising the following components by weight percent: 42-50% of natural plant secreted oil, 10-12% of bisphenol A acrylate methacrylate, 5.5-16% of ethoxylated pentahydroxy methyl oligomer, 6-8% of pentaerythritol hexapropionate, 5-6.5% of ethoxylated hydroxymethyl dimethylmethane, 7-9% of pentahydroxymethyl propane dimethyl ester, 3.5-5.5 % of dioxymethyl separating agent, 5.5-7% of polyester moisture drying agent and 0.5%-1.5% of flatting agent. The natural environment-friendly plant gloss paint provided by the invention has high environment-friendly index number, is plump and soft and has good hand feeling; the gloss oil has high transparency, and natural color of wood can be restored; the gloss oil is hard and wear-resistant, and has good scratch resistance; the gloss oil is clean-smelling, healthy, environment-friendly, good in scratch resistance and wear resistance and strong in adhesive force; and the gloss oil has good hardness, is free of after-tack and resists sea water.

The invention relates to a multi-duct cold-hot air circulation building module which comprises a body, the body is of a rectangular structure, the two sides of the rectangle are provided with snap fasteners, one side of the rectangle is provided with a son fastener, the other side is provided with a mother fastener, the body is internally provided with a row of transverse through holes, the through holes are conical, and the hole diameter of the corresponding conical through hole in one end of the son fastener is larger than the hole diameter of the corresponding through hole in one end of the mother fastener. The invention further provides constitution of the multi-duct cold-hot air circulation building module. The multi-duct cold-hot air circulation building module and the constitution thereof have the advantages that the man-hour is saved, quality is more guaranteed, the environmental protection index is high, material wastage is reduced, labor is saved, and the cost is lowered.

The invention provides a rust and moisture resistant varnish. The varnish includes 55-65 parts of epoxy resin, 8-12 parts of styrene, 1.5-3.5 parts of nanosilica, 2.5-3.5 parts of film forming resin, 15-18 parts of water soluble resin, 40-45 parts of xylene, 3.5-6.5 parts of a filler, 0.5-1.0 part of a corrosion inhibitor, 0.2-0.5 parts of a leveling agent and 0.2-0.4 parts of a conditioning agent. The varnish has the characteristics of strong adhesion, fast drying speed after brushing, long use time of a film formed by using the varnish, and rust, moisture, water and wear resistance, has the advantages of non-toxicity, no pollution and high environmental protection index, can meet people's demands on decorating varnishes; and a production process of the varnish has the advantages of simplicity, convenient operation and low cost.

The invention discloses a capping device and method for an iron mixing vehicle. The capping device comprises a steel structure welded and fixed to a driven end rack. A hydraulic station and an electrical device are installed on the steel structure. A rotating vehicle frame device is installed on the steel structure through a rotating shaft so that the rotating vehicle frame device can rotate relative to the steel structure with the rotating shaft as the center after being stressed. A walking beam device is installed at the upper portion of the rotating vehicle frame device. By means of the capping device and method for the iron mixing vehicle, heat losses of molten iron in the transporting and waiting processes can be obviously reduced, pollutants such as smoke discharged into the atmosphere can also be effectively reduced, the environment-friendliness index of the iron mixing vehicle is increased, the purposes of energy saving and environment friendliness are achieved, the capping device is low in price, convenient to install and maintain, easy to operate and suitable for application and popularization.

The invention discloses a method for simultaneously extracting hypocrellin A and coelomycin A from bamboo yellow solid-state fermentation material, comprising the following steps: (1) by using organic solvents with different polarities, according to the polarity The solid-state fermented materials of bamboo yellow fungus were leached from weak to strong; (2) the extract was concentrated into an extract, which was eluted sequentially with gradient proportioned organic solutions in column chromatography. Hypocretin A and coelomycin A were eluted in batches from the column; (3) the chromatographic solution was identified, concentrated and crystallized to obtain hypocrellin A and coelomycin A. The present invention extracts the bamboo yellow solid-state fermentation material by the organic solvent gradient method to obtain hypocrellin A and estrocystin A simultaneously in the chromatographic process of a chromatographic column, and simultaneously has high extraction rate, high purity, and organic The solvent can be reused without waste discharge. The extraction method of the invention is beneficial to the industrialized production of hypocrellin A and estrocystin A.

The invention discloses a method for simultaneously extracting hypocrellin A and Elsinochrome A from a solid fermented material of Shiraia bambusicola. The method comprises the following steps: (1) leaching the solid fermented material of Shiraia bambusicola separately by using organic solvents with different polarities from weak to strong according to the polarity; (2) concentrating extract intoextract paste, and performing sequential elution in a chromatography column by using organic solutions with gradient ratios separately so as to elute the two substances of hypocrellin A and Elsinochrome A from the same column in batches; and (3) performing identification, concentration and crystallization on the obtained chromatographic liquid so as to obtain the hypocrellin A and Elsinochrome A.By leaching the solid fermented material of Shiraia bambusicola through an organic solvent gradient method, simultaneous acquirement of the hypocrellin A and Elsinochrome A is achieved in the chromatography process of one chromatography column, meanwhile, a high extraction rate and high purity are achieved, and the organic solvents can be recycled without waste discharge; the extraction method isbeneficial to industrial production of hypocrellin A and Elsinochrome A.

The invention relates to a lock catch type combined heat insulating component of a building. The lock catch type combined heat insulating component of the building comprises a component body of which the outer surface is rectangular, wherein a groove of which the width is half that of the rectangle is formed in the middle of one end surface of the component body; a row of lock catches is arranged on the side surface of the groove, and the space between every two adjacent lock catches is greater than the length of each lock catch body; the distance from each lock catch to the top surface of the groove is less than the distance from each lock catch to the bottom surface of the groove; a plurality of bosses are arranged on the bottom surface of the groove. The invention further discloses a composition of the lock catch type combined heat insulating component of the building. The lock catch type combined heat insulating component of the building and the composition thereof have the advantages that the working hours can be saved, the quality can be ensured, the environmental protection indexes are high, the material consumption is reduced, the labor can be saved, and the cost is low.

The invention discloses an environment-friendly bolt type power electronic rectification chip forming process which comprises the following steps: (1) preparing a plurality of tin-copper alloy soldering lugs and lead-tin alloy soldering lugs, wherein the weight percentage of tin in the tin-copper alloy soldering lugs is 96%-98%, and the weight percentage of copper in the tin-copper alloy solderinglugs is 4%-2%; (2) sequentially filling the tin-copper alloy soldering lugs, the lead-tin alloy soldering lugs, a cathode molybdenum plate, a siliceous rectification chip and an anode molybdenum plate into a die hole of each graphite sintering die; (3) feeding the plurality of graphite sintering dies into a vacuum chamber of a horizontal vacuum sintering furnace; and (4) carrying out sintering and molding by using the horizontal vacuum sintering furnace. According to the invention, tin-copper (97:3) alloy replaces lead-tin (95:5) alloy material to be used as the cathode and anode surface weld-aid layers of the rectification chip product, so that the environmental protection index of the product is greatly improved, the application market of the product is expanded, the production efficiency of the product is greatly improved, and the phenomenon that the traditional lead enameling process affects the health is avoided.

The invention relates to a plate-type heat exchanger and application thereof to mariculture and belongs to the technical field of mariculture equipment. The plate-type heat exchanger comprises a detachable frame, wherein heat exchange plate sheets are sequentially stacked in the frame; the heat exchange plate sheets are sealed, pressed and connected by sealing spacers; angular holes through which heat exchange liquid passes are formed in the heat exchange plate sheets; corresponding surfaces of two adjacent heat exchange plate sheets and the sealing spacers which surround the two adjacent heat exchange plate sheets form a peripherally-sealed heat exchange cavity; the heat exchange cavity is filled with the heat exchange liquid through the angular holes; and the plate-type heat exchanger can be applied to seawater heating in the mariculture. The plate-type heat exchanger provided by the invention is high in heat exchange efficiency, small in occupation area and high in cost performance; and when the plate-type heat exchanger is used within three high-temperature months in summer, the water temperature of a cultivation room can be reduced, so that all kinds of seedlings grow in an accelerated mode, and cultivation efficiency is further greatly improved.

The invention provides a method and device for improving the efficiency of a turbine engine. Involving rotor, engine. Replace the turbine rotor with the helical rotor, and make the turbine engine into a hydraulic helical rotor engine, a gas helical rotor engine, a steam helical rotor engine, or a compressed air helical rotor engine, so that the flow of the working medium in the helical tube of the helical tube rotor The direction changes continuously, and the energy of the fluid working medium is converted into mechanical work and output power. Reduce the energy loss of the flowing working medium that is not related to the work process. If the reduction of working fluid flow caused by the reduction of installed power can be dealt with by reducing the number of spiral tubes of the spiral tube rotor and or the diameter of the screw tubes, the diameter of the screw tube rotor should not be reduced. The efficiency of these engines can be increased by more than 5% respectively. The gas helical rotary engine and the steam helical rotary engine can be used as conventional vehicle engines. Ships, aircraft, power generation, conventional vehicles and other devices equipped with helical rotor engines are more energy-saving and environmentally friendly.

The invention discloses a sheet-like laminated all-solid supercapacitor and a preparation method thereof, belonging to the technical field of capacitors and their preparation. A sheet-like laminated all-solid-state supercapacitor includes a capacitor shell, and a blind hole is dug at the top of the side of the capacitor shell. An all-solid supercapacitor core is placed inside the capacitor case, electrodes are connected to both ends of the all-solid supercapacitor core, and paste-variable conductive silver paste is connected between the inner wall of the capacitor case and the blind slot and the all-solid supercapacitor core. Layer, on the inner wall of the capacitor shell, there is a prefabricated thin layer of pasted conductive silver paste. It is relatively simple to prefabricate the thin layer of pasted conductive silver paste alone, and it will not pollute the capacitor shell. When installing an all-solid supercapacitor core, use The thin layer of pasted conductive silver paste is deformed, so that the conductive silver paste layer fully contacts the side end of the all-solid supercapacitor core, improves the adhesion between the conductive silver paste layer and the all-solid supercapacitor core, and improves the production quality of the all-solid supercapacitor and the later stage. Use efficiency.

The invention relates to an environment-friendly wastewater treatment process for fish skin gelatin. The environment-friendly wastewater treatment process comprises the following steps: S1, carrying out filter pressing on sludge in a pre-sedimentation tank through a first filter press; s2, carrying out filter pressing on the sludge in the adjusting tank through a second filter press; s3, the wastewater subjected to the flocculation reaction enters a primary sedimentation tank, a mixed flocculant comprises FeSO4, PAC and PAM according to the ratio of 100: (10-20): (10-20), sludge is subjected to filter pressing through a third filter press, and filter pressing tail water enters a standby tank; s4, the wastewater enters a secondary sedimentation tank, sludge is subjected to filter pressing through a fourth filter press, filter pressing tail water enters a standby tank, and mud cakes subjected to filter pressing through the filter presses all enter a batching tank; s5, the weight ratio of the mud cake to the coal gangue in the batching pool is 20: 1-25: 1; s6, mold fixing; s7, a first drying section; s8, pricking holes; s9, a second drying section; s10, an anti-cracking working section; and S11, a third drying section. According to the invention, multi-stage precipitation is carried out, and the generated precipitated sludge is intensively and effectively utilized, so that the environmental protection index of gelatin wastewater treatment is improved while economic benefits are generated.

The invention relates to a plate-type heat exchanger and application thereof to mariculture and belongs to the technical field of mariculture equipment. The plate-type heat exchanger comprises a detachable frame, wherein heat exchange plate sheets are sequentially stacked in the frame; the heat exchange plate sheets are sealed, pressed and connected by sealing spacers; angular holes through which heat exchange liquid passes are formed in the heat exchange plate sheets; corresponding surfaces of two adjacent heat exchange plate sheets and the sealing spacers which surround the two adjacent heat exchange plate sheets form a peripherally-sealed heat exchange cavity; the heat exchange cavity is filled with the heat exchange liquid through the angular holes; and the plate-type heat exchanger can be applied to seawater heating in the mariculture. The plate-type heat exchanger provided by the invention is high in heat exchange efficiency, small in occupation area and high in cost performance; and when the plate-type heat exchanger is used within three high-temperature months in summer, the water temperature of a cultivation room can be reduced, so that all kinds of seedlings grow in an accelerated mode, and cultivation efficiency is further greatly improved.

The invention discloses an application of lonicera japonica standing timber and stalks thereof in production of high-quality fruits. The application is characterized by comprising the steps: planting lonicera japonica standing timber; carrying out seasonal pruning; and carrying out stalk manuring. According to the application, through planting the lonicera japonica standing timber at the two sides of each road and ditch in orchards and at the periphery of each orchard according to the spacing in rows and between the rows of 1*1, the air quality of the orchards can be effectively improved, lonicera japonica flavor enriched fresh air is provided for the production of the high-quality fruits, the occurrence of diseases and insect pests of fruit trees and fruits is reduced, and the environment-friendly index of the fruits is improved; and through carrying out seasonal pruning on the lonicera japonica standing timber, collecting stalks, crushing the collected stalks, carrying out furrowing among rows of the fruit trees, carrying out stalk manuring, and carrying out stalk covering around tree disks, the aims of increasing the content of organic matters in soil, strengthening the resistance of the fruit trees, reducing the growth of weeds and improving the environment-friendly index of the fruits can be achieved.

The invention discloses a vehicle for repairing asphalt pavement pits and grooves based on electromagnetic heating. A repair system, a compacting mechanism, and a hydraulic system are installed at the top of the base, and a bin mechanism is arranged at the top of the base. The repair system includes a pre-heating mechanism and a filling repair mechanism. The pre-heating mechanism includes a position receiver, a hydraulic cylinder, Infrared heater, shielding cover, the filling and repairing mechanism includes a temperature sensor, a repairing mechanical arm mechanism, a discharge nozzle and a quantity control valve, and the compacting mechanism includes a compacting roller, a compacting hydraulic cylinder, a compacting pendulum, Compaction guide rail 1, compaction guide rail 2, the present invention uses induction heating technology combined with pothole repair capsules to repair potholes in asphalt concrete pavement by electromagnetic induction, without reducing its road use and mechanical properties.

The invention discloses an asphalt pavement pothole repair capsule and its preparation and construction method. The outer shell is made of a material that is easy to be broken at high temperature, the mixture of asphalt and heating medium is used as the core, and it is obtained by wrapping it with aggregate; the raw materials are calculated as mass percentage. 7%-12% road petroleum asphalt, 7%-12% heating medium, 15%-40% alginate-calcium chloride polymer and 40%-60% aggregate. By encapsulating the asphalt mixture and transporting it in bags, the energy consumption of the hot-mix asphalt mixture during transportation is saved, and the problem of poor storage stability of the asphalt mixture is effectively solved. In addition, using the repair capsule combined with induction heating technology to repair the pits in the asphalt concrete pavement with microwave or electromagnetic heating, the rapid repair and maintenance of the asphalt concrete pavement can be realized without reducing its road use and mechanical properties. Preventive maintenance, good economy, prolong the service performance of asphalt pavement.

The invention relates to a microwave heating car for accurately repairing road surface defects, including a car body, a repair mechanism, a compacting mechanism, a control system, and a hydraulic system; the repair mechanism includes a preheating part and a heating material part. It includes a preheating part consisting of a position receiver, a hydraulic cylinder, an infrared heater, and a shielding cover, and a repairing part consisting of a temperature sensor, a repairing mechanical arm mechanism, a discharge port, and a microwave heating box. The compaction mechanism includes compaction rollers, compaction control hydraulic cylinders, compaction swing rods, and compaction guide rails; the control system is mainly controlled by a computer chassis to realize various control functions; the hydraulic system is mainly to realize the control of infrared heaters, Repair the various movements and rotations of the mechanical arm mechanism and the compaction mechanism. The invention utilizes the induction heating technology and cooperates with the asphalt pavement pothole repair capsule to perform microwave heating and repair on the pits in the asphalt concrete pavement, thereby speeding up the progress of the maintenance project and greatly improving the repairing quality of the pits.

The invention relates to an environment-friendly gelatin wastewater treatment process which is characterized by comprising the following steps: S1, carrying out filter pressing on sludge in a preliminary sedimentation tank through a first filter press, and discharging a mud cake into a batching tank; s2, carrying out filter pressing on the sludge in the adjusting tank through a second filter press, and discharging a mud cake into a batching tank; s3, the wastewater after the flocculation reaction enters a primary sedimentation tank, sludge is subjected to filter pressing through a third filter press, filter pressing tail water enters a standby tank, and a mud cake enters a batching tank; s4, the wastewater enters a secondary sedimentation tank, sludge is subjected to filter pressing through a fourth filter press, filter-pressing tail water enters a standby tank, and a mud cake enters a batching tank; s5, the weight ratio of the mud cake to the coal gangue in the batching pool is 20: 1-25: 1; s6, mold fixing; s7, a first drying section; s8, pricking holes; s9, a second drying section; s10, an anti-cracking working section; and S11, a third drying section. According to the invention, multi-stage precipitation is carried out, precipitated sludge generated by each stage of mud-water separation is effectively utilized, and the environmental protection index of gelatin wastewater treatment is greatly improved.