138results about How to "Quick and effective removal" patented technology

The present invention relates to the preparation and use of alkylphenol ethoxylate (methyl) acrylic ester. The preparation is preferably a ester exchange reaction process including azeotropic dewatering of the mixture of alkylphenol ethoxylate and acrylic ester or methyl acrylic ester in the presence of azeotropic solvent and polymerization inhibitor, ester exchange reaction in the presence of catalyst, separating and recovering azeotropic solvent and acrylic ester or methyl acrylic ester to obtain alkylphenol ethoxylate (methyl) acrylic ester. The technological process is simple and has no polymerization of the material in the reactor and separating tower, good product appearance and alkylphenol ethoxylate converting rate up to 80-95 %.

An EUV lithography device including an illumination device for illuminating a mask at an illumination position in the EUV lithography device and a projection device for imaging a structure provided on the mask onto a light-sensitive substrate. The EUV lithography device has a processing device (15) for processing an optical element (6a), in particular the mask, preferably in a locally resolved manner, at a processing position in the EUV lithography device. For activating at least one gas component of the gas stream (27), the processing device (15) comprises a particle generator (30) for generating a particle beam, in particular an electron beam (30a), and / or a high-frequency generator.

The invention discloses an umbrella water extractor. The umbrella water extractor comprises an outer barrel, a motor arranged at the bottom in the outer barrel, a control unit and a transmission device which are connected with the motor and an inner barrel arranged in the outer barrel. The inner barrel is in an inverted cone spoke type structure and comprises an umbrella handle clamping mechanism, a cork base and an umbrella top clamping mechanism, wherein the umbrella handle clamping mechanism is arranged on a top ring of the inner barrel, the cork base is arranged at the base corner of the inner barrel, an umbrella top clamping mechanism mounting hole is arranged on the upper portion of the cork base, an umbrella top locating hole is arranged in the cork base, a water-leaking pinhole is arranged at the lower end, and the lower end of the cork base extends to form a stepped shaft; and the umbrella top clamping mechanism is arranged at the upper end of the cork base. By means of the umbrella water extractor, water on the umbrella surface can be removed rapidly and effectively; and the water extractor is simple in structure, convenient to operate, low in production cost, applicable to various umbrellas of different modes, materials and sizes and suitable for being used in crowded public places.

The invention discloses a composite flocculating agent for processing radioactive elements iron, cobalt, manganese and silver in nuclear waste water and a processing method, which belongs to the technical field of the nuclear waste water treatment. The composite flocculating agent consists of a chemical precipitator and an organic polymer flocculating agent, wherein the chemical precipitator is one or combination of more than one of potassium permanganate, sodium sulfide, sodium carbonate and sodium hydroxide; the organic polymer flocculating agent is polyacrylamide, sodium polyacrylate and / or dimethyl diallyl ammonium chloride; and the processing method comprises the following steps of configuring the composite flocculating agent, charging the composite flocculating agent, regulating a pH value of the solution, mixing, flocculating and filtering. Due to the adoption of the composite flocculating agent and the processing method, multiple radioactive element ions of ultralow trace concentration in the nuclear waste water can be efficiently removed, and advantages such as rapidness and high efficiency in reaction process, charging in one step and little dangerous chemical sludge can be realized.

The invention provides a soaking device capable of enhancing support strength and capillary action. The device comprises a casing; a vapor chamber is defined in the casing, and filled with an evaporable working fluid after vacuumized; a net-shaped cross capillary structural body is arranged in the vapor chamber of the casing. Meanwhile, by means of crisscrossed capillary holes, the capillary action of the working fluid in a cavity body is enhanced; multipoint and multidirectional soaking and radiating effects can be achieved; a heating element which is in contact with the soaking device is quickly and effectively dissipated; in addition, the net-shaped cross capillary structural body presents a cross-linking mechanical structure, the support strength can be enhanced, and the structural stability of related products is promoted.

The invention provides a preparation method of a heterogeneous Fenton catalyst. The preparation method comprises the following steps: weighing ferric trichloride or ferric nitrate and nickel sulfate which are raw materials according to a molar ratio of Fe:Ni of 2:1, respectively dissolving the raw materials in ultrapure water to obtain two solutions, and uniformly mixing to obtain a mixed solution; and adding certain masses of NaOH, and graphene or graphite oxide or active carbon to the mixed solution, stirring, transferring to a reaction kettle, heating for 10min, separating in a magnetic field, washing, and drying to obtain the heterogeneous Fenton catalyst. The invention also provides a method for the visible photocatalytic degradation of organic pollutants through using the heterogeneous Fenton catalyst. The heterogeneous Fenton catalyst prepared through the preparation method is mixed with oxalic acid to degrade organic stimulating pollutants under visible lights. The organic pollutant degradation method is simple and is easy to implement, the catalyst can be separated from the solution through the applied magnetic field, and the carbon material-nickel ferrite composite catalyst can be recycled; and the method enables the chroma of polluted water to be rapidly and effectively removed.

The invention discloses a preparation method and application of a magnetic nickel ferrite photocatalysis material. The preparation method comprises the following steps of: uniformly mixing soluble iron salt and soluble nickel salt in water, and adding strong alkali into the water for stirring continuously; then heating a formed mixed reaction system at 180 DEG C for 10 hours in an airtight mode; then separating solid substances from a mixed reactant by a magnetic field, and washing the solid substances for multiple times; and finally drying the solid substances in an environment at 200-450 DEG C, thereby obtaining the target product. The magnetic nickel ferrite photocatalysis material has functions of photocatalytic degradation by ultraviolet light and visible light as well as magnetic separation, can be used for treating sewage, and especially can remove ammonia nitrogen in a polluted water body rapidly and effectively; the method is simple, convenient and feasible; and the catalyst can be easily separated out through an applied magnetic field, can be recycled and is low in cost.

The invention discloses a rust removal device of an artware. The rust removal device comprises a box body; a first partition board and a second partition board are arranged inside the box body correspondingly, the outer side faces of the first partition board and the second partition board are fixedly connected with the inner side wall of the box body correspondingly, the left side and the right side of the inner bottom wall of the box body are fixedly connected with first driving motors correspondingly, and rotating rods are fixedly connected to the top ends of the output shafts of the two first driving motors correspondingly, and the top ends of the two rotating rods penetrate through and extend to the upper part of the first partition board. According to the device, an acid washing liquid is used for reacting with rusty chips on the artware, so that the rust chips on the artware can fall off conveniently, and cleaning water can be used for washing the rust chips and the acid washingliquid on the artware; and two electromagnetic valves are controlled, so that the washing water is closed when the acid washing liquid is needed, and the acid washing liquid is closed when the washing water is used; and the purposes of economical using the acid washing liquid and the washing water are effectively achieved.

The invention discloses a micro-nano machining method and a micro-nano machining device for a laser composite ejection liquid beam, and belongs to the technical field of micro-nano processing techniques. The micro-nano machining device comprises a laser pulse sequence regulator (1), a laser system (2), a laser beam adjusting system (3), a visible light transmission reflector (4), a laser beam and ejection liquid beam coaxial observation regulation system (5), a focusing lens (6), a regulating and control device (7), an ejection device (8), a micro-nano working table (9), an ejection liquid filtering circulation system (10), a laser power supply (11) and an overall control system power supply (12). The micro-nano machining method comprises a step of implementing micro-nano machining on a workpiece by taking laser beams generated from the laser system (2) and ejection liquid beams generated from the ejection device (8). The micro-nano machining method and the micro-nano machining device are applicable to machining of engine blade film holes.

An improved lamination molding apparatus which can maintain the inert gas environment in the chamber as well as remove the fume swiftly and efficiently away from the optical pathway of the laser beam, is provided. According to the invention, the lamination molding apparatus is provided which comprises a cavity body, a smoke diffusion portion installed on the inner side of the top portion of the cavity body, an inertia gas diffusion portion and an inertia gas supply path. The cavity body comprises a molding space covering a molding area, and is filled with inertia gasses at a preset concentration. The smoke diffusion portion comprises a housing which has an opening portion which will not shut off laser irradiating towards the molding area. The inertia gas supply path enables the housing to be filled with gases which are of the same kind with the inertia gases in the molding space. The inertia gasses are jet out from the opening portion. A laminar flow of the inertia gases forms along the irradiation path of the laser, and is discharged from the irradiation path.

The invention relates to the field of automobile parts. An automobile tire assembling and disassembling tool comprises a frame, a moving frame, a wheel clamping component, a bolt assembling and disassembling component and a jack component; the moving frame is arranged on the frame through a slide rail; the wheel clamping component comprises a chuck, a clamping motor, a driving conical gear, a driven conical gear and multiple clamping jaws; clamping jaw grooves are formed in the chuck; the chuck is connected with the moving frame; the clamping motor is arranged on the chuck; the driving conicalgear is connected with the clamping motor; the driven conical gear is arranged in the chuck; the driven conical gear is engaged with the driving conical gear; a clamping thread is arranged on the driven conical gear; the clamping jaws are arranged in the clamping jaw grooves; a threaded groove is clamped on each clamping jaw; the threaded groove is matched with the clamping thread; the bolt assembling and disassembling component is used for assembling and disassembling bolts on wheels; and the jack component is used for jacking an automobile. The automobile tire assembling and disassembling tool has the beneficial effects that the stability of the wheel assembling and disassembling process is improved, the operation is convenient and fast, and meanwhile, the assembling and disassembling efficiency is enhanced.

This invention relates to devices and methods for purifying, detecting and using biological cells. A variety of cell types including viable tumor, stem, immune and sperm cells can be purified from a complex biological sample using a column, including a pipette tip column. Methods of the invention can aid research, diagnosis and treatment of cancer. Purified viable cells can be detected on the column or eluted from the column and detected. Cells on a column can be used as a stationary phase for liquid chromatography. Cells may be removed, recovered and analyzed.

The present invention relates to a floating filter module installed in a water treatment apparatus, such as in a public water treatment plant, a village water supply facility, a public sewage treatment plant, a wastewater treatment plant, or a village sewage treatment plant, in order to remove contamination particles. The floating filter module according to the present invention comprises: a hollow-type sintered filter having a plurality of fine pores which is arranged in wastewater within a water treatment tank in order to separate and filter the contamination particles from the wastewater introduced into the water treatment tank; a floating body connected to the sintered filter, and which floats to the surface of the wastewater within the water treatment tank so as to position the sintered filter at the upper portion of the wastewater in the water treatment tank; a main pipe communicating with an inner space of the sintered filter; a suction device coupled to the main pipe in order to provide a suction force to the sintered filter through the main pipe, thereby suctioning the wastewater in the water treatment tank through the plurality of fine pores and into the sintered filter; and a compressed-air supply apparatus having a compressed-air supply tube communicating with the inner space of the sintered filter through the main tube and an air compressor coupled to the compressed-air supply tube in order to supply compressed air into the inner space of the sintered filter, thereby releasing from the sintered filter the contamination particles that clog the fine pores of the sintered filter.

An object of the present invention is to provide an improved lamination molding apparatus which can remove the fume swiftly and efficiently away from the optical pathway of the laser beam. According to the invention, the lamination molding apparatus, comprising a chamber covering a desired molding region and being filled with an inert gas of predetermined concentration; a recoater head capable of moving in a first horizontal uniaxial direction so as to supply a material powder in the molding region of the chamber and planarize the material powder supplied; and a fume suction opening provided on both sides of the recoater head along a second horizontal uniaxial direction crossing orthogonally with the first horizontal uniaxial direction, is provided.

The invention provides a sugarcane peeling machine comprising a rack and a peeling mechanism arranged on the rack. The peeling mechanism comprises motors and installing plates; the peripheral side of an output rotating shaft of each motor is provided with cutter teeth; the middle portion of each installing plate is provided with a through hole used for entry and exit of sugarcanes; the multiple motors are hinged to two side surfaces of the installing plates; the output rotating shafts of the motors are arranged to surround the peripheral edges of the through holes; each motor makes the corresponding output rotating shaft get close to the axis of the corresponding through hole via an elastic part. The cutter teeth on the output rotating shafts of the multiple motors work on the peripheral side of a sugarcane entering the through holes, so that the sugarcane is peeled. The peeling mechanism employed by the sugarcane peeling machine is fixed and sugarcanes are peeled through the rotation of the output rotating shafts of the motors in different directions; the sugarcane peeling machine is simple and effective in structure, high in peeling efficiency and convenient to use.

The present invention pertains to the field of chemical industry, wherein an acidic scale remover for the circulating water system of central air-conditioners is disclosed, which comprises ethylenediamine tetra-acetic acid, sodium humate, polyphosphates and water, its pH is 2-3.5. The scale remover can be used for effectively removing carbonate scale and rust scale.

The present invention discloses a hydrocyclone flotation system comprising: a hydrocyclone body; air injection means for injecting air into water being supplied to the hydrocyclone body; drain water volume regulation means for regulating the volume of drain water discharged out of the hydrocyclone body to maintain a constant water level in the hydrocyclone body; suspended solids filtration means for taking suspended solids out of the hydrocyclone body, the suspended solids staying dispersed in water being supplied to the hydrocyclone body and then floating and gathering towards the vortex center of the water by the swirling flow of the water and air foam while the water passes through the hydrocyclone body. With such a hydrocyclone flotation system, a water pollution prevention system of the present invention can effectively treat suspended solids produced from a purification process of waste water, sewage, used water, etc., at a relatively low cost.

The present invention relates to a microwave plasma oxidation water treatment method and its application. Said invention includes the following steps: feeding industrial waste water, utilizing mixture of iron discharge body and active carbon to adsorb organics in the waste water; utilizing plasma produced by using microwave to excite iron discharge body to oxidate organics adsorbed on the surface of active carbon, at the same time internal electrolysis action produced between iron discharge body, active carbon and organics can be used for degrading organics, after the organics are oxidated and degraded, making the waste water be reached to reuse and discharge standard.

The invention relates to a grinding wheel reinforced mesh pick-up method. The method is characterized by comprising the following steps of: automatically removing wax paper on the upper and lower surfaces of upper and lower formed circular grinding wheel reinforced meshes stuck with the wax paper and provided with central holes and slitter edges through a conveyer belt, separating the slitter edges from the mesh bodies, and finally collecting the meshes. According to the pick-up method for effectively and quickly removing the parts beyond the grinding wheel mesh bodies in an adsorption mode and implementing superposition by using the central holes as a center, the meshes are quickly and tidily finished, the work efficiency is effectively improved, and the labor intensity of workers is reduced.

The invention provides a nuclear power plant blender cleaning decontamination device which comprises a gantry support. A lifting system and a flushing system are arranged on the gantry support. The lifting system comprises two lead screws which are vertically arranged on the gantry support. Each lead screw is provided with a nut used in cooperation with the lead screw. The lifting system further comprises a supporting plate. The supporting plate penetrates through the two lead screws and is connected with the lower surfaces of the two nuts. The supporting plate can be driven by the nuts to move up and down along the two lead screws. The flushing system comprises a flushing pipe assembly. The flushing pipe assembly comprises a flushing pipe, wherein the upper end of the flushing pipe is connected with the supporting plate through a flange, the lower end of the flushing pipe is provided with a sprayer assembly capable of rotating, and the flushing pipe can move up and down along with the supporting plate. According to the decontamination device, a blender barrel and a stirring paddle can be cleaned in real time by means of remote control, and materials remaining on the blender barrel and the stirring paddle can be removed quickly and effectively; consumed time is short, and the effect is remarkable.

The invention relates to a natural tea tree oil screen cleaning fluid composed of the following compounds according to parts by weight: the weight ratio among benzalkonium chloride, tea tree oil and ionized water is equal to 9 to 23: 35 to 55: 74 to 98. The cleaning fluid of the invention uses the benzalkonium chloride, the tea tree oil and the ionized water as raw materials, is environment-friendly, can sterilize, is free from damaging the screen coating film, leaves no wiping trace on the screen, can quickly and efficiently remove the dust, dirt and fingerprint on the liquid crystal screen, has the functions of decontamination and sterilization, is anti-static and dustproof, can reduce the accumulated dust, can clear the surface of the screen without trace, can form a protection film on the wiping surface, has sterilizing property, and can avoid bacterial virus spreading so as to help people away from virus. The cleaning fluid of the invention has wide application scope, and can be used for TFT liquid crystal display, notebook computer screen, liquid crystal television, rear projection television, plasma television, VCD and DVD discs, and the like.

The invention relates to an iron extraction process from an aqueous acid solution containing ferrous ions. The acidic feed solution is first passed to a fluidized bed reactor for the oxidation of the ferrous ions preferably by microbes (Leptospirillum ferriphilum) to give ferric ions, followed by introducing the solution obtained to a concentrator for the precipitation of a compound containing ferric ions from the solution to give solid matter. The final product, i.e. solid matter containing ferric ions, is collected. In the process, the solution to be treated is passed through the fluidized bed at a flow rate sufficient for effective fluidization and mixing in the fluidized bed. Further, an apparatus for performing the iron extraction process is claimed. The carrier for the microbes may be activated carbon.

The invention belongs to the technical field of skin care and hair care, and particularly relates to an anti-dandruff, repair and moisturizing shampoo and a preparation method thereof. The anti-dandruff, repair and moisturizing shampoo is prepared from the following components of ethylenediamine tetraacetic acid disodium salt, citric acid, cationic guar gum, glycerin, cationic cellulose, fatty alcohol-polyoxyethylene ether sodium sulfate, fatty alcohol ammonium sulfate, EGDS (Ethylene Glycol Distearate) and EGMS (Glycol Mono Stearate), coconut oil fatty acid monoethanolamide, methyl ester, vitamin E, D-panthenol, an amino acid moisturizer NMF50, cocamidopropyl betaine, water-soluble caprylic capric triglycerride, emulsified silicone oil, fructus cnidii extract, phenoxyethanol, methylisothiazolinone, sodium chloride, jasmine essence and deionized water. The prepared anti-dandruff, repair and moisturizing shampoo has the advantages that the components are mild without irritation, the natural raw materials are selected, the double effects of hair washing and hair care are realized, and the problem of dandruff is fundamentally solved; in addition, the coarse hairs can be nourished, thewithered hairs can be repaired, the hairs are smooth from interior to exterior, and the lasting moisture effect is realized; Besides, the stability is good.

The invention relates to a three-stage combined dust removal chamber structure of a spraying dust removal tower, which comprises a first-stage dust removal chamber, a second-stage dust removal chamber and a third-stage dust removal chamber that are arranged at intervals in the dust removal tower, wherein the first-stage dust removal chamber comprises a flue gas pipe connected to the dust removal tower, the outlet end of the flue gas pipe is internally provided with a guide block, a water eliminator which is wider than the outlet end of the flue gas pipe is arranged on the inner wall of the dust removal tower corresponding to the upside of the outlet end of the flue gas pipe, and spray headers are arranged in the dust removal tower above the water eliminator; the second-stage dust removal chamber comprises a supporting bottom frame fixed on the inner wall of the dust removal tower, a corrosion resistant net layer is covered on the supporting bottom layer, a dust removal carrier ball is laid on the corrosion resistant net layer, and spray headers are arranged in the dust removal tower above the dust removal carrier ball; the third-stage dust removal chamber comprises a supporting bottom frame fixed on the inner wall of the dust removal tower, a corrosion resistant net layer is covered on the supporting frame, a dust removal carrier ball is laid on the corrosion resistant net layer, a sponge filtering layer is covered on the dust removal carrier ball, and spray headers are arranged in the dust removal tower above the sponge filtering layer.

The invention relates to a spray tower structure used for spray dedusting, comprising a primary dedusting chamber, a secondary dedusting chamber and a third-level dedusting chamber arranged at intervals from bottom to top in the dedusting tower, the dedusting tower above the third-level dedusting chamber is internally provided with an airflow rotating device which comprises an inner ring body and an outer ring body sheathed with each other, vanes are fixed between the external side wall of the inner ring body and the internal side wall of the outer ring body, so that adjacent two vanes, the inner ring body and the outer ring body can form airflow passages; the length direction of the airflow passages and the axial line of the inner ring body or the outer ring body intersect in a noncoplanar way, and all airflow passages are distributed clockwise or counter clockwise, and the internal side wall of the inner ring is provided with a baffle for sealing the inner pores. The invention has the advantages of effective and fast removal of dust in the smoke, no plugging, long service life, inexpensive price, etc.

The invention relates to an air conditioning device and a control method thereof. The control method is used for preventing the surface of an electric heater of the air conditioning device from beingcorroded and comprises steps as follows: when a first preset condition, a second preset condition or a third preset condition is met, the electric heater is started, condensate water on the surface ofthe electric heater is evaporated through heat produced by the electric heater until the starting time of the electric heater reaches second preset duration. The first preset condition is that cumulative duration of operation of a compressor of the air conditioning device at frequency higher than or equal to first preset frequency in a refrigeration or dehumidification mode reaches first preset duration; the second preset condition is that when temperature of the indoor environment reaches the preset temperature in the refrigeration or dehumidification mode, breaking halt is required, or whena shutdown signal for indicating the air conditioning device to stop operating is received, normal shutdown is required; the third preset condition is that the air conditioning device is required tobe switched in a heating mode and the compressor stops running. Therefore, the surface of the electric heater of the air conditioning device can be prevented from being corroded, and the air conditioning device is safe, healthy, environmentally friendly and low in cost.

The invention discloses a fruit surface cleaner, belonging to the field of fruit cleaning. The fruit surface cleaner consists of a remover and a stabilizer, wherein the remover consists of the following components in parts by mass: 10 parts of ginger juice, 5 parts of propylene glycol, 2 parts of sodium citrate, 6 parts of sodium carbonate, 1.3 parts of fructus gleditsiae powder, 0.05 part of paper mulberry seed powder and 130 parts of purified water; the stabilizer consists of the following components in parts by mass: 5-13 parts of starch and 2-5 parts of charcoal powder. According to the fruit surface cleaner disclosed by the invention, the components are non-toxic to human bodies, residues are avoided, and the removal effect is good; the fruit surface cleaner can quickly clear wax on fruit surfaces, so that consumers can safely eat the pulp and peel of fruits, and the trouble of peeling is reduced.

The invention discloses a garbage excavation all-in-one machine, and relates to the field of garbage treatment. The garbage excavation all-in-one machine comprises a machine body. The machine body is provided with a bucket, a conveying trough, a driving cabin and a traveling mechanism, and the conveying trough is provided with a conveying belt. The garbage excavation all-in-one machine further comprises a dust precipitating system and an air purification system. The dust precipitating system comprises a water tank, an atomizer and a sprayer which communicate in sequence through pipes. The air purification system comprises air intake pipelines, an exhaust fan and an air purification box which communicate in sequence through hoses. The garbage excavation all-in-one machine has the beneficial effects that the air purification system and the dust precipitating system can rapidly and effectively remove dust generated during excavation of garbage and purify the air, thereby avoiding injury to workers and pollution to the environment; the sprayer is arranged above the feeding end of the conveying trough; two air intake pipelines are located on the left side and the right side of the bucket correspondingly; and the sprayer and the air intake pipelines are both very close to the excavation point, so that dust and harmful gas are removed immediately when not dispersing yet. The garbage excavation all-in-one machine has the advantage of good treatment effect.

The invention discloses a preparation method of liquid potassium ferrate by utilizing ultrasonic electrolysis. The method adopts an electrolysis device, which comprises an ultrasonic wave generator and an electrolytic tank, wherein the electrolytic tank is arranged in the ultrasonic wave generator and is divided into a cathode chamber and an anode chamber by a perfluorinated ion membrane. The method comprises the following steps: (1) preparing anode electrolyte, wherein the solvent is water, the potassium hydroxide concentration is 14 to 18 mol / L, and the potassium chloride concentration is 0.5 to 2 mol / L; and preparing cathode electrolyte, wherein the solvent is water, the potassium hydroxide concentration is 1 to 3 mol / L, and the potassium chloride concentration is 0.5 to 2 mol / L; (2) starting the ultrasonic wave generator during the electrolysis process, controlling the current density in a range of 50 to 200 mA / cm2 and the temperature in a range of 30 to 40 DEG C, and obtaining liquid perfluorinated ion membrane after electrolysis. The method has the advantages of simple steps, convenient operation, and high product concentration.

The invention discloses a recycling machine used for metal powder waste mixed with plastic. The recycling machine comprises a machine body. A separating device is arranged on the upper side in the machine body and comprises a combustion chamber arranged on the upper side in the machine body. A grinding cavity is formed at the position, below the combustion chamber, in the machine body. Four secondfeeding openings communicate between the grinding cavity and the combustion chamber in a circular array manner. After combusted metal powder and plastic ash enter the grinding cavity through the second feeding openings, the plastic ash can be further crushed. A water circulation device is arranged below the separating device. A discharging control device is arranged below the separating device. By means of the recycling machine, plastic mixed in metal powder waste can be cleaned away rapidly and effectively, water in the recycling machine can be repeatedly and cyclically used for a long time,the situation of material accumulation cannot be generated when materials are collected, a material collecting box does not need to be frequently replaced, the situation that materials continue to fall off when the water collecting box is replaced, and the work environment is polluted is avoided, and the recycling rate is high.