45results about How to "Easy to filter and recycle" patented technology

The invention discloses an environment-friendly spray printing and dyeing device for a textile fabric, and relates to the technical field of textile machinery equipment. The environment-friendly spray printing and dyeing device comprises a box, two sides of the bottom of the box are fixedly connected with mutually symmetric supporting vertical plates, the bottoms of the two supporting vertical plates are fixedly connected with bottom supporting plates, two sides of the bottoms of the bottom supporting plates are fixedly connected with mutually symmetric damping anti-slip mats, the centers of the tops of the bottom supporting plates are fixedly connected with dye stirring devices, through holes are formed in the bottom of the inner wall of the box and positioned above the dye stirring devices, and an impurity filter screen is arranged on the inner walls of the through holes. The environment-friendly spray printing and dyeing device for the textile fabric solves the problems of high dyeing cost, environmental pollution, low use ratio and poor fabric dyeing effect of existing textile fabric dyeing equipment. The use efficiency of dyes is effectively improved, the device is safe and environmentally friendly, environmental pollution is reduced, manual operation of workers is omitted, the labor intensity of staff is reduced, and production efficiency is improved.

A method for preparing a pyruvate ester is disclosed. In the method of the present invention, a lactate ester is oxidized by hydrogen peroxide in the presence of a Ti-Si molecular sieve catalyst. In the present invention, the Ti-Si molecular sieve catalyst is easily filtered and recycled, the reaction conditions are mild due to the usage of hydrogen peroxide, the process is simple and easily performed, the conversion rate of the lactate ester is high, and the selectivity of the pyruvate ester is high.

The invention discloses a nitrogen filtering recovery system of a reflow oven, comprising a gas inlet (1) and a gas outlet (2), wherein a gas filtration device (3) and a negative pressure power device (4) are sequentially connected between the gas inlet and the gas outlet; the nitrogen filtering recovery system is characterized in that the gas filtration device (3) is arranged in a sealing way, the negative pressure power device (4) is independently arranged outside the gas filtration device (3), and the gas filtration device (3) is communicated with the negative pressure power by a pipeline. The system has obviously excellent filtering effect, reliable sealing performance and convenient assembly and disassembly, can be used for recovering scaling powder in a centralized way, and is applied to the field of gas circulating purification technology of the reflow oven.

The invention discloses a preparation method and an application method of granular activated carbon for xylose decoloring, which belongs to the field of preparation methods and application methods of activated carbon. The preparation method comprises the following steps: (A) preparing raw materials, namely, weighing phosphoric acid method powder activated carbon made from saw dust, an acrylic emulsion and water according to a ratio of acrylic emulsion to phosphoric acid method powder activated carbon to water being (0.37-0.39):1:1; (B) mixing the raw materials, namely, mixing the weighed raw materials and sufficiently stirring till the granules are uniformly mixed; (C) forming granules, namely, extruding the uniformly mixed raw materials to form granules by using a pelletizing machine at the constant temperature of 90 DEG C, so as to make granules with the particle size of 2-5mm, cooling the granules to be 40-50 DEG C, and drying; (E) separating and cooling. The granular activated carbon prepared by using the method is good in adsorption property, high in strength, acid-alkali resisting, recyclable and reusable, the liquid adsorption amount of unit volume is equivalent to that of other granular activated carbons, and the production environment is improved.

The invention discloses a method for preparing metallized paper used for label printing and other aspects and having ink holdout function, and in particular relates to innovation of a priming coat and a top coat used for vacuum metallized paper production. (The coating referred below comprises the priming coat and the top coat.) The ink holdout type coating is mainly characterized in that: water borne epoxy resin is taken as a main component and is dissolved in solvents of water and ethanol to form the two-component ink holdout coating, wherein the epoxy resin is high molecular weight bisphenol A water borne epoxy resin meeting the following standards: 1) the epoxy equivalent weight (g / eq) is 1,600 to 2,000; 2) the viscosity (cps, 150DEG C) is 1,300 to 10,000 (5.8); 3) the softening point (DEG C) is 125 to 142; and 4) the color (platinum-cobalt method) is 100 to 250Max. The metallized paper solves the problem that an aluminum layer and an ink layer fall off when a metallized paper label is soaked in aqueous alkali (NaOH); and the metallized paper produced and metallized paper beer labels printed by the invention have strong alkaline hydrolysis resistance and good permeability, and the aluminum layer and the ink layer do not fall off when the metallized paper and the metallized paper beer labels are soaked in the aqueous alkali (NaOH). The metallized paper has important environmental protection application value, and also has significance for reducing the production cost of beer producers and recycling waste.

The invention relates to a method for preparing a lithium ion sieve composite material by recycling a negative electrode of a waste lithium ion battery, and belongs to the field of recycling of the negative electrode of the waste lithium ion battery. The preparation method of the lithium ion sieve composite material comprises the following steps: crushing and sieving waste lithium ion batteries toobtain mixed recovered powder, adding the mixed recovered powder into sulfuric acid and hydrogen peroxide, leaching, and filtering to obtain filter residues; washing and drying the filter residues toprepare 5-50g / L slurry, adding manganese salt, an oxidizing agent and an auxiliary agent, uniformly mixing, and adding a lithium hydroxide solution to obtain brown slurry; carrying out hydrothermal reaction on the brown slurry to obtain a brown solid; washing and drying the brown solid, and roasting for 0.5-4 hours at 300-600 DEG C in an oxygen-containing atmosphere to obtain a lithium salt adsorbent precursor; and the brown lithium salt adsorbent precursor being subjected to acid pickling lithium removal, and obtaining the lithium ion sieve composite material. The lithium ion sieve compositematerial has good filtering performance and lithium extraction efficiency, and is easy to filter and recover and low in manganese dissolution rate.

The invention discloses a cutting device for coiled hot-rolled plain round steel bar production and a using method thereof. The cutting device for coiled hot-rolled plain round steel bar production comprises a bottom plate, an operation table is arranged at the top of the bottom plate, supporting legs are fixedly connected to the bottom of the operation table at equal intervals, and the bottoms of the supporting legs are fixedly connected with the top of the bottom plate; and two side plates are fixedly connected to one end of the top of the bottom plate, and a discharging roller is rotationally connected between the two side plates. The cutting device has the beneficial effects that cut steel bars can be better discharged through a rotationally-arranged discharging plate, the steel bars are prevented from being bent, and meanwhile, abrasion generated by direct falling of the steel bars is prevented; the steel bars can be better guided and conveyed through a conveying mechanism, the steel bars are pressed to be straight while being conveyed, the steel bars can be better positioned and cut through a cutting mechanism, tangent point deviation is prevented, and cooling liquid can be better filtered and recycled through a filtering mechanism.

The invention relates to the technical field of automobile part machining equipment, in particular to an automobile part surface cleaning device which comprises a circulating water tank and a cabinetbody. The automobile part surface cleaning device is provided with a rotating disc and a pressing disc, so that clamping of automobile parts is facilitated, and the parts are made to rotate; the automobile part surface cleaning device is provided with an electric telescopic rod and a lifting frame, so that lifting of cleaning rollers is facilitated; the cleaning rollers are driven by a servo motorto rotate at a high speed, the rotating parts are conveniently cleaned, and therefore the cleaning effect is improved; a water pump and a circulating water tank are arranged, so that water is conveniently sprayed to the parts through a water spraying head, and the cleaning effect is improved; water falling holes and a filtering plate are arranged, so that water recycling and filtering are facilitated, water reuse is facilitated, consumption of water resources is reduced, and the water resources are saved; and an air pump is arranged, and an air spraying head is arranged at the lower end of the lifting frame, so that air flow is blown to the parts, water stains on the parts are air-dried conveniently, drying treatment is facilitated, operation is convenient, and use is convenient.

The invention discloses a sustained-release raw hide swelling agent. The swelling agent at least comprises two layers from inside to outside, wherein the innermost layer is a raw hide swelling agent particle body coated with at least one layer of polymer coating film. The invention further provides a preparation method of the swelling agent. The preparation method comprises steps as follows: (1) preparation of a coating agent; (2) coating; (3) mixing of products with different release curves. The invention further relates to an application of the sustained-release raw hide swelling agent to a leather alkaline swelling technology. The sustained-release raw hide swelling agent has the advantages as follows: (1) the sustained-release raw hide swelling agent is proper in dissolution speed, controllable in hydrolysis degree, slow and uniform in fiber swelling and suitable for a liming process of various leather, including upper leather; (2) the lime consumption in the liming process is very low, so that sludge during liming is effectively reduced, and the requirement for clean production of leather is met; (3) a hair saving and removing agent is combined for use, so that sodium sulfide or sodium hydrosulfide can be omitted during liming, the sulfide pollution is reduced, and liming waste liquids are easy to filter, recover and recycle.

The invention relates to the technical field of construction equipment, and in particular to mechanical equipment for preparing regenerated sand and stone materials by utilizing construction waste particles. The mechanical equipment comprises a storage structure, a storage chamber, a dust removal structure, a limiting structure, a discharging structure, a filtering structure and a driving structure; the driving structure is connected to the discharging structure on the storage structure, so that it is convenient for weight sensing through the discharging structure; when a cart is placed on thedischarging structure, the driving structure is used for driving the discharging structure to drive the cart to rotate for discharging, so that discharging is more convenient and faster, materials inthe cart can be completely discharged conveniently, and the discharging quality is greatly improved; the filtering structure is arranged, so that sewage can be conveniently filtered and recycled, itis convenient for pressure relieving on concrete blocks, broken stone blocks, and tile fragments; the dust removal structure used for removing dust of the concrete blocks, the broken stone blocks andthe tile fragments is connected to the driving structure, and the dust removal structure can be conveniently driven by the driving structure to conduct watering and dust removal on the concrete blocks, the broken stone blocks and the tile fragments in a multi-angle mode.

The invention discloses a heating and separating device for ground gathering and transportation of shale gas and a using method thereof.The heating and separating device comprises a heating and separating device body, the heating and separating device body comprises a separating tank and an inlet pipe which communicates with and is fixed to the left side of the separating tank, and an intelligent filter residue self-cleaning mechanism is arranged at the left end of the inlet pipe; the intelligent filter residue self-cleaning mechanism comprises a round box arranged on the left side of the inlet pipe, and the left side of the round box is provided with an opening and is fixedly connected with a cover plate. Particle impurities in shale oil and gas can be conveniently filtered and collected, a large amount of particle impurities are prevented from entering the separation tank, and the two filter screens can be intelligently and automatically cleaned and dredged and can be automatically discharged in a manner that the two filter screens are intelligently and automatically subjected to alternate filtering and backflushing cleaning when blockage occurs; the device is simple in structure and convenient to use, manual dismounting and cleaning by personnel during shutdown in the using process are not needed, the working efficiency is improved, water used for flushing can be conveniently filtered and recycled, and the water waste phenomenon is reduced.

The invention discloses a normal-pressure preparation method of rare-earth oxide doped cerium oxide aerogel, and relates to the technical field of rare-earth oxide aerogel. An inorganic cerium salt isused as a precursor, a rare-earth inorganic salt is used as a doping phase, wet gel is obtained by a complexing agent for modification and a gelling catalyst and through a sol-gel process, and rare-earth oxide doped cerium oxide aerogel large particles are obtained through normal-pressure drying. The cerium oxide aerogel particles prepared by the method are low in cost, are not pulverized when meeting water, have the specific surface area of 244 m<2> / g, and have the advantages of high specific surface area, low density and the like, and due to the face that the obtained aerogel particles arerelatively large, after being applied to a liquid environment, the aerogel particles are easy to filter and recycle compared with powder.

The invention discloses a spraying type oiling device for chemical fiber production. The spraying type oiling device comprises a spraying chamber, an oiling assembly is installed in the spraying chamber, and a first smearing assembly is installed on one side of the oiling assembly. The spraying type oiling device is scientific and reasonable in structure and safe and convenient to use. By arranging the oiling assembly, under the effect of a feeding wheel and a first receiving wheel, chemical fibers can be conveniently driven to move for first spraying oiling, under the effect of a second receiving wheel, a guiding tube and a discharging wheel, the chemical fibers can be conveniently guided for second spraying oiling, the chemical fibers are comprehensively oiled, and the oiling effect is improved. By arranging the first smearing assembly, under the effect of a second driven gear and a rotating tube, the chemical fibers can be conveniently rotatably smeared, and non-uniform chemical fiber oiling is avoided; under the effect of a power gear, a connecting shaft, a first driven gear and a reversing gear, the rotating tube can be conveniently synchronously driven to rotate through rotation of a power shaft, and thus the resource utilization rate is increased.

The invention discloses a filtering recovery device for magnetic material processing waste liquor and a filtering recovery method therefor. The device comprises a filtering barrel, a liquor feeding funnel, a liquor feeding valve, a partition plate, filtering assemblies, an electromagnet, conveying assemblies, a separating mechanism, a deposition tank, detecting assemblies and a controller. Each filtering assembly comprises a filter screen and a telescopic member, and each conveying assembly comprises a slide plate I, a baffle and a driving member. The detecting assemblies are used for detecting accumulation volume of wastes on each filter screen and adsorption capacity of magnetic wastes in each filtering space. The controller is used for driving corresponding telescopic members to retreatwhen the accumulation volume exceeds preset accumulation volume so as to increase degree of inclination of the filter screens; and when the adsorption capacity exceeds preset accumulation volume, a liquid outlet is closed firstly, then, a discharging opening is closed, a knockout through hole is opened, and finally, the electromagnet is shut off. According to the device and the method, the recycling rate of the magnetic material processing waste liquor can be increased, the cleaning of the waste liquor is facilitated, and environmental pollution caused by direct discharge of the waste liquoris avoided.

The invention discloses a novel vinyltrichlorosilane catalyst, a preparation method thereof and a method for preparing vinyltrichlorosilane through catalysis of the novel vinyltrichlorosilane catalyst. The preparation method of the catalyst comprises the following steps: 1) grafting amino to a porous carrier through an organic amine compound to obtain an amino-modified porous carrier; and 2) dispersing the amino-modified porous carrier in water to obtain a first mixture, adding a chloroplatinic acid aqueous solution into the first mixture, mixing to obtain a second mixture, and drying the second mixture to obtain the novel vinyl trichlorosilane catalyst which is the amino-modified porous carrier loaded with chloroplatinic acid. According to the preparation method of the catalyst, chloroplatinic acid is loaded on the amino-modified porous carrier so that the active component chloroplatinic acid is uniformly distributed on the surface of the porous carrier, and the product and the catalyst are separated through a filtering technology after a catalytic reaction in a catalytic method, and thus the aims of recycling the catalyst and reducing the production cost are fulfilled.

The invention discloses a method for preparing aluminum-coated paper with ink-carrying function, which is used in label printing and the like. The present invention specifically relates to a kind of innovation of the ink-supporting type coating used for the primer and top coat in the production of vacuum aluminized paper (the coatings mentioned below all include two types of primer and top coat). The ink-supporting type coating that the present invention relates to is mainly characterized in that water-based epoxy resin is used as the main agent, and water and ethanol are used as solvents to dissolve the two-component ink-supporting coating obtained, wherein the epoxy resin adopts a high-quality coating that meets the following standards Molecular weight bisphenol A water-based epoxy resin: ① Epoxy equivalent (g / eq) 1600-2000, ② Viscosity (cps, 150°C) 1300-10000 (5.8), ③ Softening point (°C) 125-142, ④ Color (platinum-cobalt colorimetric method) 100Max-250Max. The invention solves the problem that the aluminum layer and the ink layer of the aluminized paper label fall off during immersion in alkali solution (NaOH), and the aluminized paper produced by the invention and the printed aluminized paper beer label have strong alkali resistance and permeability Well, the aluminum layer and the ink layer do not fall off during immersion in alkaline solution (NaOH). The invention has great environmental protection application value, and also has great significance in reducing the production cost of beer production enterprises and recycling waste.

The invention discloses an extraction and enrichment device for micro-plastics in livestock and poultry excrement. The device comprises a device body, idler wheels, a cabinet door, an observation window, a feeding port, a first motor, a water pump, a water pipe, a second motor, a control panel, a shell, a water tank, supporting legs, an enrichment box, a bearing, a threaded rod, a third filter plate, rectangular grooves, a first filter plate, a threaded sleeve, a scraper, a second filter plate, a stirring box, an electric valve, fixed blocks, stirring blades, a rotating shaft and a spray head.The device has the beneficial effects that: the rectangular grooves are formed in one sides of the third filter plate, the second filter plate and the first filter plate, centralized collection of micro-plastics is facilitated, the four idler wheels are arranged, the device is convenient to move according to actual needs, filter holes of the third filter plate, the second filter plate and the first filter plate are sequentially increased, the micro-plastics with different diameters can be conveniently filtered and recycled, a small-aperture filter screen is adopted at the bottom of the enrichment box, the collected micro-plastics are convenient to enrich, and the working efficiency is improved.

The invention discloses a nitrogen filtering recovery system of a reflow oven, comprising a gas inlet (1) and a gas outlet (2), wherein a gas filtration device (3) and a negative pressure power device (4) are sequentially connected between the gas inlet and the gas outlet; the nitrogen filtering recovery system is characterized in that the gas filtration device (3) is arranged in a sealing way, the negative pressure power device (4) is independently arranged outside the gas filtration device (3), and the gas filtration device (3) is communicated with the negative pressure power by a pipeline.The system has obviously excellent filtering effect, reliable sealing performance and convenient assembly and disassembly, can be used for recovering scaling powder in a centralized way, and is applied to the field of gas circulating purification technology of the reflow oven.

The invention discloses an alternating-current low-voltage power distribution cabinet convenient for dust deposition, which comprises a power distribution cabinet body, supporting legs fixed at four corners of the bottom part of the power distribution cabinet body and a cabinet door hinged to the front surface of the power distribution cabinet body, wherein the left side of the power distribution cabinet body is fixedly provided with a waterproof heat dissipation shutter, a water guide plate is fixedly installed on the left side of the power distribution cabinet body and located above the waterproof heat dissipation louver, a rainwater recycling and cooling mechanism is arranged on the power distribution cabinet body, and a detachable automatic fire extinguishing mechanism is arranged in the power distribution cabinet body. The alternating-current low-voltage power distribution cabinet relates to the technical field of power distribution cabinets. According to the alternating-current low-voltage power distribution cabinet convenient for dust deposition, through the arrangement of the rainwater recycling and cooling mechanism, rainwater can be conveniently filtered and recycled, and a part of heat in the power distribution cabinet body can be taken away by using the rainwater, so that the heat dissipation effect of the power distribution cabinet body is better; and through the arrangement of the detachable automatic fire extinguishing mechanism, the power distribution cabinet body can be automatically extinguished in case of accidental fire, so that the use safety is high.

The invention discloses a housing assembly of a double-side grinding machine. The housing assembly comprises a housing assembly arranged on a working table of the grinding machine, wherein the housingassembly comprises a side housing enclosing the side surface of the working table and a rear housing arranged at the rear side of the working table; and the rear housing communicates with the side housing, and a dust collecting opening connected with negative pressure equipment is arranged above the rear housing, so that negative pressure is formed at the processing position part of the grindingmachine, dust cannot be leaked but is discharged through the negative pressure equipment, and the dust collecting effect is great. As the housing integrating a dust collecting function can replace workshop dust collecting equipment, the production cost is reduced, space usage is reduced, and the reasonable layout of a workshop is facilitated. Besides, a cooling liquid recycling opening is arrangedbelow the rear housing, the dust is separated from cooling liquid, and the filtering and recycling of the cooling liquid are facilitated.

The electric energy metering control cabinet comprises a control cabinet body and a cabinet door hinged to the side face of the control cabinet body, supporting legs are fixedly connected to the four corners of the bottom of the control cabinet body, a hollow frame is fixedly connected to the front portion of the control cabinet body in a penetrating mode, and shutter blocking pieces are arranged on the inner side of the hollow frame; the number of the shutter separation blades is multiple, and a positioning adjusting mechanism is arranged between the hollow frame body and the shutter separation blades. According to the electric energy metering control cabinet with the heat dissipation window and the rainproof plate, through the arrangement of the positioning adjusting mechanism, the single shutter separation blade can be conveniently disassembled and replaced, the use cost is reduced, the whole shutter separation blade can be turned over, heat dissipation is achieved, the use convenience is high, and through the arrangement of the sealing waterproof mechanism, the use is convenient. The sealing performance between the hollow frame body and the shutter separation blade is enhanced, external moisture is effectively prevented from entering the control cabinet body, and the use safety is higher.

The invention relates to a breakable capsule sorting device and a breakable capsule sorting system. The breakable capsule sorting device comprises a supporting table and a sample pressing rod, and further comprises a control motor in transmission connection with the sample pressing rod; and during breakable capsule sorting, the control motor drives the sample pressing rod to descend by a set distance, and pressure is applied to to-be-sorted breakable capsules with equal pressing sinking amount. The to-be-sorted breakable capsules are supported by the supporting table, and the control motor controls the sample pressing rod to descend by the set distance, so that it is guaranteed that the pressure is applied to the same batch of breakable capsules with the equal pressing sinking amount, and the pressing sinking amount serves as an evaluation index conveniently; the qualified breakable capsules which are not pressed and blasted by the sample pressing rod are collected by a qualified breakable capsule collecting structure, the unqualified breakable capsules which are pressed and blasted by the sample pressing rod are collected by a broken breakable capsule collecting structure, and therefore, the breakable capsules with too low strength can be quickly and effectively separated out; and each breakable capsule is pressed downwards, pressure is applied at equal pressing sinking amount, and detection can be quickly and effectively carried out at low cost.

The invention discloses a preparation method of cyclodextrin microspheres: the cyclodextrin is alkalized and then added with a cross-linking agent for pre-cross-linking for a period of time, then the pre-cross-linked product and the oil phase are mixed in a certain proportion, and the reaction is stirred until The pre-crosslinked product becomes microsphere particles; after standing until the microsphere particles in the oil phase are completely precipitated, the upper oil phase is sucked out and recovered, and the obtained microsphere particles are rinsed with distilled water and transferred to absolute ethanol for soaking and washing. Then dry to constant weight to obtain β-cyclodextrin microspheres. Compared with the conventional inverse emulsion polymerization method, the present invention has the following advantages: the preparation steps are simple, the reagents required are few, the oil phase does not need to add emulsifier, and oil-water separation can be directly carried out after the reaction; the subsequent treatment of the obtained microspheres is simple; the oil phase is separated The recovery is more convenient and the recycling rate is higher; the particle size distribution of the obtained microspheres is more in line with the normal distribution and the particle size distribution is more concentrated; the particle size of the microspheres can be easily and effectively controlled during the preparation process, and microspheres with different particle sizes can be obtained. ball.

The invention discloses a preparation method of lactofen. The preparation method of lactofen comprises the following steps: carrying out esterification reaction on acifluorfen and 2-ethyl chloropropionate in an organic solvent in the presence of acid-binding agents, thereby obtaining the lactofen after complete reaction and aftertreatment, wherein the acid-binding agents are at least one of potassium hydroxide, sodium hydroxide, sodium tripolyphosphate, borax anhydrous, CaO, sodium metasilicate, sodium orthosilicate and sodium acetate. According to the invention, special acid-binding agents are selected for replacing potassium carbonate and triethylamine, so that carbon dioxide gas is prevented from generating; the reaction system is more stable; meanwhile, the emission of pollutants is reduced; the environment is protected.

The invention discloses a preparation method and an application method of granular activated carbon for xylose decoloring, which belongs to the field of preparation methods and application methods of activated carbon. The preparation method comprises the following steps: (A) preparing raw materials, namely, weighing phosphoric acid method powder activated carbon made from saw dust, an acrylic emulsion and water according to a ratio of acrylic emulsion to phosphoric acid method powder activated carbon to water being (0.37-0.39):1:1; (B) mixing the raw materials, namely, mixing the weighed raw materials and sufficiently stirring till the granules are uniformly mixed; (C) forming granules, namely, extruding the uniformly mixed raw materials to form granules by using a pelletizing machine at the constant temperature of 90 DEG C, so as to make granules with the particle size of 2-5mm, cooling the granules to be 40-50 DEG C, and drying; (E) separating and cooling. The granular activated carbon prepared by using the method is good in adsorption property, high in strength, acid-alkali resisting, recyclable and reusable, the liquid adsorption amount of unit volume is equivalent to that of other granular activated carbons, and the production environment is improved.

The invention relates to a screening device, in particular to a glass bead overheating screening device. According to the glass bead overheating screening device, people can conveniently screen and recycle glass beads, the working efficiency is high, colored glaze can be cooled, and people are not prone to being scalded. The glass bead overheating screening device comprises a heat-resisting bottom box, a charging box and a feeding pipe; a supporting bottom plate is arranged on one side of the heat-resisting bottom box; the charging box is mounted on the heat-resisting bottom box; and the feeding pipe is mounted between the charging box and the heat-resisting bottom box. Under the cooperation of a lifting mechanism and a cooling mechanism, glass beads flow into a lifting bottom box through the feeding pipe, a heating module dissolves the glass beads into colored glaze, an electric push rod is started to enable the lifting bottom box to move downwards to drive the colored glaze to move downwards, and the colored glaze moves downwards to be immersed in clear water to be cooled, and thus, people can conveniently screen and recycle the glass beads, the working efficiency is high, the colored glaze can be cooled, and people are not prone to being scalded.

The invention discloses a preparation method of lactofen. The preparation method of lactofen comprises the following steps: carrying out esterification reaction on acifluorfen and 2-ethyl chloropropionate in an organic solvent in the presence of acid-binding agents, thereby obtaining the lactofen after complete reaction and aftertreatment, wherein the acid-binding agents are at least one of potassium hydroxide, sodium hydroxide, sodium tripolyphosphate, borax anhydrous, CaO, sodium metasilicate, sodium orthosilicate and sodium acetate. According to the invention, special acid-binding agents are selected for replacing potassium carbonate and triethylamine, so that carbon dioxide gas is prevented from generating; the reaction system is more stable; meanwhile, the emission of pollutants is reduced; the environment is protected.

The invention relates to the technical field of buildings, in particular to a building energy-saving structure and an energy-saving system.The building energy-saving structure comprises a heating assembly, a cleaning assembly and a filtering assembly which communicate with one another, the heating assembly transmits heat energy into a floor heating pipe through a ground source heat exchange device to supply heat to a building, and the cleaning assembly comprises a cleaning agent box; a cleaning agent in a cleaning agent box is pumped into a mixing box to be mixed with hot water, then a pipeline in a heating assembly is cleaned, a filtering assembly comprises a first filtering box and a second filtering box, the second filtering box filters and separates water after the pipeline is cleaned, filtered water enters the first filtering box to be filtered again, and the filtered water enters the second filtering box to be filtered. The scheme is provided for solving the problem that more resources are consumed for cleaning the pipeline, and the energy-saving and environment-friendly effects can be achieved.

The invention discloses a sustained-release raw hide swelling agent. The swelling agent at least comprises two layers from inside to outside, wherein the innermost layer is a raw hide swelling agent particle body coated with at least one layer of polymer coating film. The invention further provides a preparation method of the swelling agent. The preparation method comprises steps as follows: (1) preparation of a coating agent; (2) coating; (3) mixing of products with different release curves. The invention further relates to an application of the sustained-release raw hide swelling agent to a leather alkaline swelling technology. The sustained-release raw hide swelling agent has the advantages as follows: (1) the sustained-release raw hide swelling agent is proper in dissolution speed, controllable in hydrolysis degree, slow and uniform in fiber swelling and suitable for a liming process of various leather, including upper leather; (2) the lime consumption in the liming process is very low, so that sludge during liming is effectively reduced, and the requirement for clean production of leather is met; (3) a hair saving and removing agent is combined for use, so that sodium sulfide or sodium hydrosulfide can be omitted during liming, the sulfide pollution is reduced, and liming waste liquids are easy to filter, recover and recycle.