38results about How to "Reduce turbidity" patented technology

The utility model discloses an automatic surface water monitoring system, which comprises a sampling module for sampling a water body and conveying the sampled water body, and is characterized by comprising a precipitation module and a first measurement module which are connected with the sampling module, and a conveying module arranged on the precipitation module, and the second measuring module is connected with the precipitation module through a conveying module. The sedimentation time of the sampling water body in the second sedimentation tank is prolonged according to the turbidity of the water body, the turbidity of the sampling water body is further reduced, the influence on the total phosphorus measuring unit in the second measuring module is reduced, and the data accuracy of the total phosphorus measuring unit is improved.

The application discloses a vaccine heat-resistant protective agent, a preparation method and application thereof, and belongs to the technical field of vaccines. The vaccine heat-resistant protective agent comprises the following raw materials: polycarboxybetaine, taurine, a sugar substance, polysarcosine, erythritol, gelatin enzymatic hydrolysate, a metal ion chelating agent and a buffer. The application also provides a preparation method. Compared with the prior art, the synergistic effect of polycarboxybetaine, taurine, a sugar substance, polysarcosine, gelatin enzymatic hydrolysate, erythritol and EDTA-Na2 can significantly improve the freeze-dried cake forming and reconstitution performance, shorten the reconstitution time, reduce the turbidity and insoluble particles. After 2-8 DEG C, 25 DEG C and 37 DEG C storage and multiple freeze-thaw cycle investigations, the antigen content residual rate and glass transition temperature are obviously superior to those of a traditional sucrose and mannitol system, and the inactivation risk caused by cold chain fluctuation can be effectively buffered.

The application provides an anode foil and a preparation method thereof. The preparation method comprises the following steps: providing an unformed foil, wherein the unformed foil comprises an aluminum foil base material and an aluminum powder sintering layer arranged on the surface of the aluminum foil base material; and sequentially performing the following processes on the unformed foil: water boiling, first-stage chemical conversion, second-stage chemical conversion, third-stage chemical conversion, power feeding treatment, fourth-stage chemical conversion, fifth-stage chemical conversion, first-stage heat treatment, first chemical conversion repair, first phosphoric acid treatment, second chemical conversion repair, second-stage heat treatment, third chemical conversion repair and second phosphoric acid treatment. The solutes of the electrolyte of the first-stage chemical conversion, the second-stage chemical conversion and the third-stage chemical conversion comprise citric acid, triammonium citrate, adipic acid, ammonium adipate, salicylic acid, hypophosphite, boric acid and ammonium salt, and the solvent is water. The solutes of the electrolyte of the fourth-stage chemical conversion and the fifth-stage chemical conversion comprise citric acid, triammonium citrate, sebacic acid, ammonium sebacate, salicylic acid, sodium hypophosphite, boric acid and ammonium salt, and the solvent is water. An anode foil prepared by the preparation method has a high specific capacity and a small hydration leakage current.

The utility model belongs to solar energy utilization technical field, concretely belongs to a kind of jacket heat exchange pressure type unpowered hot water system;Including multiple series pressure jacket heat exchange solar water heater, auxiliary water tank;Pressure jacket heat exchange solar water heater is provided with pressure water tank;When pressure jacket heat exchange solar water heater is connected in series, the water inlet of end pressure jacket heat exchange solar water heater is connected to tap water pipeline, and water inlet safety valve is also provided in tap water pipeline;Water outlet is connected to the water inlet of next pressure jacket heat exchange solar water heater;The water outlet of another end pressure jacket heat exchange solar water heater is connected to auxiliary water tank, and water outlet safety valve is connected on pipeline, and auxiliary water tank is connected to water end.The utility model connects single pressure jacket heat exchange solar water heater in series, after safety valve in hot water outlet pipeline, then connect auxiliary water tank, and auxiliary water tank has heat storage function, auxiliary heating water.

The embodiment of the present application provides a crystallization promoting body, a preparation method thereof and a wastewater treatment device. The crystallization promoting body is used for removing target ions in wastewater. The crystallization promoting body comprises: a carrier sheet, the density of the carrier sheet is less than the density of the wastewater; and crystal seeds, the crystal seeds are arranged on the surface of the carrier sheet and used for promoting the target ions to form crystals. The crystallization promoting body can reduce the energy consumption of the wastewater treatment device.

This application provides a two-step flocculation adaptive control method for tailings slurry based on FBRM online monitoring, relating to the field of tailings treatment technology in the mineral processing industry. The method includes: online monitoring of the original tailings slurry using focused beam reflection measurement under no-doping conditions to obtain the particle size baseline characteristics of the original slurry; adding a primary flocculant to obtain a first slurry, and monitoring the dynamic particle size characteristics of the flocs during the flocculation process in real time; based on the dynamic particle size characteristics of the first slurry, determining whether the first slurry has reached a ready state suitable for secondary flocculation according to a preset primary flocculation completion criterion; when the first slurry reaches the ready state, automatically initiating the addition of a secondary flocculant to obtain a second slurry, and providing real-time feedback on the particle size distribution change in the second slurry as a control signal to adaptively adjust the dosing rate of the secondary flocculant. This method can automatically adapt to changes in ore properties, solid content, and operating conditions, and has strong potential for widespread application.

A composite solid-state electrolyte membrane and its preparation method, and a solid-state battery, are disclosed. The preparation method of the composite solid-state electrolyte membrane includes: providing a polymer mother liquor comprising polyvinylidene fluoride, polyimide, and lithium salt; dispersing inorganic ceramic electrolyte powder in a solvent; under a first mechanical shear, adding a first portion of filler pre-dispersion liquid accounting for 5% to 25% to the polymer mother liquor; under a second mechanical shear, adding a second portion of filler pre-dispersion liquid accounting for 25% to 50%; and under a third mechanical shear, adding the remaining portion of filler pre-dispersion liquid to prepare a composite slurry; and forming the composite slurry into a film to prepare the composite solid-state electrolyte membrane. This application improves the dispersion effect and interfacial bonding of the filler in the composite solid-state electrolyte membrane by using a combination of staged feeding and mechanical shear, pre-wetting a small amount of filler to construct a stable initial mixed phase, and then using a portion of the filler to reduce viscosity and improve shear efficiency, thereby promoting the uniform dispersion of the remaining filler.

The utility model discloses a high-ammonia-nitrogen wastewater treatment device based on a zeolite and MBR combined process. The high-ammonia-nitrogen wastewater treatment device comprises an adjusting tank, a biochemical reaction tank, an MBR membrane tank, a reflux tank and a water producing tank, the interior of the biochemical reaction tank is divided into an anoxic zone and an aerobic zone by a first partition plate, a submersible stirrer is arranged in the anoxic zone, an aeration device is arranged in the aerobic zone, zeolite particles are filled in the anoxic zone, a grid mesh for intercepting the zeolite particles is arranged at an overflow port of the aerobic zone, and an MBR membrane assembly is arranged in the MBR membrane tank; the regulating tank is connected with the biochemical reaction tank through a lifting pump and a lifting pipeline, the anoxic zone, the aerobic zone, the MBR membrane tank and the reflux tank are in overflow connection in sequence, the reflux tank is connected with the anoxic zone through a reflux pump and an external reflux pipeline, and the MBR membrane assembly is connected with the water producing tank through a water producing pump and a water producing pipe. The device can improve the treatment efficiency and treatment effect of the ammonia-nitrogen wastewater and improve the effluent quality.

This utility model relates to the field of water treatment technology, and in particular to an integrated water treatment system suitable for extremely cold regions with temperatures as low as -60°C. The system includes a raw water collection tank, a heat exchanger, a static mixer, a self-cleaning filter, an ozone oxidation treatment unit, an air flotation unit, a thickening tank unit, a tubular microfiltration membrane device, a clear water tank module, and a pipeline network. The system is integrated within multiple standardized containers, with the water treatment equipment and components housed within the containers. The air flotation device and ozone catalytic tower are located in the external space. Through the integration of flocculation, self-cleaning filtration, ozone oxidation, air flotation, and tubular microfiltration processes, and employing a modular container design, the system is equipped with electric heating and composite insulation structures to achieve efficient decontamination and freeze protection. Simultaneously, the use of air flotation + flocculation + tubular microfiltration processes efficiently removes suspended solids, operates automatically, and is adapted to extremely cold environments. The pipelines and equipment utilize composite insulation technology to ensure stable operation at low temperatures.

This invention belongs to the field of wastewater treatment technology, specifically relating to a heavy metal scavenging agent modified with boric acid-hydroxyoxime groups, its preparation method, and its application. The boric acid-hydroxyoxime group-modified heavy metal scavenging agent comprises a three-dimensional network structure formed by the dehydration condensation bridging of polyaluminum chloride and boric acid, and hydrogen-bonded hydroxamic acid groups. This invention uses polyaluminum chloride (PAC) as the main framework, forming Al-O-B boron-oxygen covalent bonds through the dehydration condensation of boric acid and the hydroxyl groups of PAC, bridging the oligomeric PAC into a stable three-dimensional network polymer structure, thus enhancing its adsorption bridging ability. Then, it adsorbs acetylhydroxamic acid onto the boron-bridged PAC framework through a multiple hydrogen bond network, constructing a heavy metal scavenging agent with flocculation, adsorption, and chelation functions. The heavy metal scavenging agent of this invention has a stable structure, can be reused multiple times, and has high heavy metal capture efficiency.

The invention discloses an intelligent heat dissipation device of a dry-type transformer and a using method of the intelligent heat dissipation device, and belongs to the technical direction of transformer heat dissipation. The intelligent heat dissipation device comprises a dry-type transformer placement base, and two sets of supporting bases are symmetrically installed at the two ends of the outer portion of the dry-type transformer placement base correspondingly and are the first supporting base and the second supporting base correspondingly; two sets of heat dissipation grooves are symmetrically formed in the two ends of the exterior of the first supporting seat correspondingly, a plurality of sets of heat conduction rods are installed on one side of the interior of the first supporting seat in an array mode, a temperature sensor is fixedly installed on one side of the exterior of the first supporting seat, and a heat dissipation assembly and a second heat dissipation base are further arranged on the dry-type transformer placement base. Through cooperative use of the heat conduction rod, the electric fan set and the temperature sensor, the peripheral temperature of the dry-type transformer placement base can be detected, the heat dissipation mode can be changed according to different temperature values, heat is conducted to the heat conduction rod for heat dissipation when the operation temperature is low, and it is avoided that cold air makes direct contact with the dry-type transformer, and condensed water drops are generated.

The invention relates to the technical field of waste liquid treatment, in particular to a self-adaptive pH amphoteric polymer-calcium salt compounded bentonite slurry rapid sedimentation treatment method. According to the method, a calcium salt working solution, a buffer working solution, an amphoteric polymer working solution and a functionalized calcium carbonate micro-powder dispersion solution are added in stages, and the stirring speed and time are accurately controlled, so that rapid sedimentation of the slurry is realized. The amphoteric polymer is formed by copolymerizing a plurality of monomers and has wide pH adaptability; the functionalized calcium carbonate micro powder is used as a weighting carrier to enhance the floc density. The method solves the problems of slow sedimentation, high supernatant turbidity and poor adaptability to water quality fluctuation in the traditional method, has the advantages of high sedimentation speed and high supernatant clarity, can be directly reused, and is suitable for bentonite slurry treatment in the fields of electric power engineering and the like.

The utility model provides a polyurethane varnish reaction kettle, which comprises a reaction kettle main body and a stirring assembly arranged on the reaction kettle main body, the stirring assembly comprises a stirring rod capable of rotating relative to the reaction kettle main body, a horizontal stirring group arranged on the stirring rod, and a vertical stirring group vertically arranged on the horizontal stirring group, by vertically arranging the vertical stirring group on the horizontal stirring group, when the stirring rod rotates relative to the reaction kettle main body, the stirring rod can simultaneously drive the horizontal stirring group and the vertical stirring group to rotate relative to the reaction kettle main body, so that the contact area between the stirring assembly and a polyurethane varnish raw material is increased, and the shearing performance of the stirring assembly is improved; the polyurethane varnish is kept in a uniform proportion in the production process during rotation, the turbidity of a finished product is reduced, the quality of the finished product is improved, and the device has the advantages of being simple in structure, convenient to install, low in implementation cost and convenient to popularize and implement.

The present application relates to a kind of control electrolytic system electrolyte quality system operation method.The control electrolytic system electrolyte quality system operation method is applied to the window period of PC electrolytic system power outage out tank operation to before re-power, including the following steps, after system power outage, first, carry out copper and electrolyte purification operation, the operation includes according to supernatant storage tank liquid level dynamic adjustment filter pump frequency to control suspended solids content;After tank filling is completed, the pretreatment operation including washing and at least one in-tank pickling is carried out to newly loaded anode plate;During the whole window period, the temperature of electrolyte is regulated by plate heat exchanger and heat preservation measure, so that it reaches preset target temperature range before power on;The control electrolytic system electrolyte quality system operation method can efficiently control electrolyte quality, and provide guarantee for cathode copper production quality.

The invention relates to the technical field of water treatment, in particular to a water treatment environment intelligent online monitoring device and a remote control system thereof.The water treatment environment intelligent online monitoring device comprises a monitoring pipe, the outer surface of the monitoring pipe is fixedly sleeved with an assembly frame, and a main controller is fixedly installed in the middle of the outer surface of the assembly frame; a first metering pump is fixedly installed on the lower portion of the front end of the outer surface of the side, away from the monitoring pipe, of the assembly frame, and a second metering pump is fixedly installed in the middle of the rear end of the outer surface of the side, away from the monitoring pipe, of the assembly frame. A water quality online analyzer is fixedly installed on the upper portion of the rear end of the outer surface of the side, away from the monitoring pipe, of the assembly frame, a sampling tank is fixedly installed on the lower portion of the rear end of the outer surface of the side, away from the monitoring pipe, of the assembly frame, and a filtering tank is spirally inserted into the end, close to the monitoring pipe, of the sampling tank. According to the invention, the dosage is reasonably controlled, the consumption of the scale and corrosion inhibitor is saved, and the treatment effect on the circulating water is ensured.

This utility model relates to the field of wastewater treatment technology and discloses a novel wastewater effluent turbidity reduction device, including a main body, multiple sets of mounting rings located inside the main body, and a water inlet pipe located at the top of the main body. The main body includes multiple sets of drain pipes arranged on the outside of the main body, and a mounting block is provided at the bottom of the main body. A water passage hole is provided in the middle position inside the mounting ring, and a rotating ring is arranged inside the water passage hole. This utility model transports wastewater into the main body through the water inlet pipe, filters impurities in the wastewater through a grid, and drives a rotating shaft to rotate through a rotating groove, allowing the rotating rod and mounting ring to rotate. The rotating rod supports the rotating ring, and the rotating shaft drives the rotating ring to rotate. The three sets of rotating rings can be flipped individually, allowing adjustment of the filtration degree of the wastewater, thereby improving the turbidity reduction effect of the wastewater and enhancing the practicality of the device.

The application provides a system treatment process for fluorine-containing wastewater, which comprises the following steps: a fluorine-containing wastewater treatment process, a sludge treatment process, a defluorination filter material regeneration process and a sludge waste liquid treatment process. The system treatment process for fluorine-containing wastewater has the advantages of low sludge yield, low flocculant consumption, low treatment cost, high adsorption capacity, greatly prolonged adsorption time of the adsorbent, reduced regeneration frequency, no discharge of regeneration liquid, and effectively solved problem of difficult treatment of by-products of traditional treatment processes.

This invention belongs to the field of oil and gas field development technology and discloses a temperature-pH dual-responsive smart fracturing proppant and its preparation method. The proppant adopts a three-layer core-shell structure, including a high-strength ceramic or quartz sand core, a polyvinyl alcohol crosslinking transition layer reinforced with nano-silica, and a poly(N-isopropylacrylamide-co-acrylic acid) copolymer smart response layer. In the low-temperature proppant carrying stage, the smart response layer hydrates and swells to form a gel layer, giving the proppant excellent suspension performance and friction reduction ability, realizing water fracturing. In the high-temperature reservoir environment, the phase transformation of the temperature-sensitive segment and the protonation of the pH-sensitive segment cause the smart response layer to shrink and detach rapidly, realizing autonomous gel breaking and aiding in fracturing. The nano-reinforced transition layer significantly improves the anti-fracture performance, reducing the fracture rate to 6% to 11% and increasing the long-term conductivity by 35% to 58%.

The utility model discloses a novel grit-water separator, and relates to the technical field of grit-water separation, the novel grit-water separator comprises a water collecting tank with an upward opening and a feeding screw rod which is obliquely arranged, one end of the feeding screw rod is inserted into the bottom of the water collecting tank, the other end of the feeding screw rod is connected to a driving assembly, grit-water is put into the water collecting tank, and the driving assembly drives the feeding screw rod to rotate; the feeding screw rod upwards conveys the gravels at the bottom of the water collecting tank out through rotation; the water collecting tank is composed of a butterfly-shaped tank and an inclined pipe which are integrated, the feeding screw rod is rotationally connected to the inclined pipe, the top end of the inclined pipe is downwards provided with a sand outlet, the upper portion of the butterfly-shaped tank is provided with a liquid outlet, and separated water overflows outwards from the liquid outlet. Sand water in the water collecting tank is separated by rotation of the screw, gravels are discharged from the top of the water collecting tank, clean water overflows and is guided out after water stands, sewage turbidity is greatly reduced, drainage equipment damage caused by water quality problems is reduced, and personnel maintenance cost is also reduced.

The invention belongs to the technical field of photovoltaic array rainwater resource utilization, and provides a photovoltaic initial rainwater purification parameter control method and system based on potassium ferrate. Through potassium ferrate, microorganisms such as dust, bird droppings and pollen and oxidizable organic matters in the initial rainwater of the photovoltaic array are rapidly reduced under the strong oxidation effect, the peculiar smell and chromaticity are reduced, meanwhile, ferric hydroxide flocs are generated after reduction, particle trapping and colloid destabilization with a coagulant are achieved, and therefore bacteriostasis, organic matter reduction and rapid turbidity removal are synchronously completed; meanwhile, the adding quality of the potassium ferrate is determined according to the chromaticity and the turbidity, and through determination of the stirring strength, the reaction time and the pH value, on the basis that the purification effect is guaranteed, the accurate control over the agent adding amount is achieved under the condition that the chromaticity and the turbidity change.

The utility model discloses a stone aggregate washing device which comprises a washing pool, a filtering partition plate is welded in the washing pool, and two shaft seats are fixed to the left side of the top face of the washing pool. According to the washing device, the washing pool is divided into the two cavities through the filtering partition plate, the rolling barrel is located in the cavity on the left side of the washing pool, and the motor drives the connecting shaft on the shaft seat to rotate through the transmission belt, so that the connecting shaft drives the rolling barrel to rotate in the cavity on the left side of the washing pool; due to the fact that the lower portion of the rolling barrel with the filter screen on the surface is immersed in water in the washing pool, the rolling barrel in the rotating state is subjected to washing treatment under the stirring effect of a plurality of stirring blades on the inner side face of the rolling barrel, impurities attached to stone aggregate are dissolved in the water, and the impurities are removed through a water pumping pipe, a water pump, a comb tooth pipe and a spray head which are arranged in a right cavity of the washing pool. Compared with the prior art, the stone aggregate water washing device has the advantages that the stone aggregate water washing requirement is met, and meanwhile, the water is easily recycled.

The utility model discloses a modularization's landscape ecological floating island combination structure, including connecting main body frame, the connecting main body frame bottom middle part is equipped with counterbore, the side of connecting main body frame all symmetry fixedly connected with the plug -in rod, the connecting main body frame bottom fixedly connected with water supply subassembly and aeration subassembly, the side of plug -in rod all through plug -in rod swing joint has the planting frame, the planting frame top middle part all are equipped with mounting hole, the one side of planting frame close to connecting main body frame all are equipped with with the plug -in slot of matching of plug -in rod, the plug -in rod can insert plug -in slot inside, the planting frame top all are equipped with limit slot, the inside of planting frame all swing joint has planting subassembly and purification subassembly, the planting subassembly side bottom fixedly connected with positioning assembly. This structure realizes the modularization combination of assembly, adjusts the main frame according to the applicable scene, improves water quality through the synergies of plant and biological membrane and realizes floating island plant landscape effect.

This utility model relates to the field of whole-house pipe purification technology for improving water quality, and discloses a whole-house pipe purification system for improving water quality, including a shell assembly. A pre-filter assembly is snapped onto the upper inner wall of the shell assembly, symmetrically distributed deionization assemblies are installed on the outer wall of the shell assembly, an activated filter assembly is installed at the bottom of the inner wall of the shell assembly, and a reflux assembly is installed on the outer wall of the shell assembly. The reflux assembly and activated filter assembly are provided to further capture smaller suspended particles, colloids, and other substances that may not be completely removed in a single filtration, thereby effectively reducing the turbidity of the water and improving the clarity of the water. This effectively ensures that the water maintains a certain flow state in the pipes and avoids the deposition of impurities in dead corners or low-flow-rate areas of the pipes.

The present application relates to the field of fertilizer preparation, and discloses a chelated medium and trace element composite liquid fertilizer and a preparation method thereof, which comprises the following steps: preparing a medium element pre-chelated mother liquor with residual complexing capacity; in the presence of amino acid chelating components, degradable polycarboxylic acid chelating components and antioxidant stabilizers, adding iron salt, manganese salt, zinc salt and copper salt in sequence to prepare a trace metal chelated mother liquor; adding a boron source to a sugar alcohol chelating component to form a boron-polyhydroxy complex system, and then adding a molybdenum source to prepare a boron-molybdenum buffer mother liquor; adding the trace metal chelated mother liquor to the medium element pre-chelated mother liquor in sections, and adding a reserved chelating agent according to the turbidity increase value, the conductivity change rate and the proportion of free metal ions; then adding the boron-molybdenum buffer mother liquor and performing a stabilization treatment to obtain the chelated medium and trace element composite liquid fertilizer. The present application is suitable for the preparation of a composite liquid fertilizer containing calcium, magnesium, iron, manganese, zinc, copper, boron and molybdenum.

This invention discloses an automatic purification device for hard grinding slurry, belonging to the field of grinding slurry purification technology. Specifically, it includes a pretreatment unit, a deep purification unit, an intelligent control unit, and an auxiliary system. The outlet of the pretreatment unit is connected to the inlet of the deep purification unit via a pipeline, and the outlet of the deep purification unit is connected to the inlet of the auxiliary system. The pretreatment unit includes a multi-stage sedimentation separation chamber and a magnetic adsorption iron removal module. The deep purification unit includes a high-speed centrifugal separation module and a self-cleaning precision filtration module. This invention adopts a four-stage purification structure of "multi-stage sedimentation + magnetic adsorption iron removal + high-speed centrifugation + self-cleaning precision filtration," which can efficiently remove ultrafine powder from the grinding slurry, thoroughly reduce the turbidity of the grinding slurry, effectively solve the problem of ultrafine powder residue in existing purification methods, thereby reducing the surface scratch rate of the workpiece by more than 30%, slowing down the wear rate of the grinding wheel by 2 times, significantly improving the machining accuracy of steel balls and the product qualification rate, and reducing the cost of grinding wheel replacement.

An underwater anti-dispersion ultra-high performance concrete based on reversible network design, its preparation method, and its application. The ultra-high performance concrete comprises cementitious materials, water, polycarboxylate superplasticizer, and a synergistic anti-dispersion composite admixture; wherein the composite admixture consists of a main agent and auxiliary agents. The main agent and auxiliary agents are used to construct a three-dimensional reversible network structure with significant thixotropic properties in situ within the slurry, endowing the slurry with intelligent rheological properties of "shear thinning—static thickening": the yield stress reaches 50–320 Pa at rest to resist underwater erosion, and the plastic viscosity is maintained at 2–8 mPa·s during shearing to ensure pumpability. This invention effectively solves the problem of balancing rheological properties and anti-dispersion properties in ultra-high performance concrete systems, and is particularly suitable for the repair and reinforcement of underwater piers, pile foundations, and tunnel linings.

The utility model discloses a two -segmented mine water is coordinated and is removed turbidity, removes fluorine precipitate processing device, including the turbidity removal sedimentation section and the coordinated sedimentation section who sets up in intercommunication, turbidity removal sedimentation section includes one stage first mixed area, one stage second mixed area, one stage flocculation area and one stage sedimentation area, and one stage sedimentation area and one stage second mixed area still are connected with one stage circulation area, the coordinated sedimentation section includes two stage first mixed area, two stage second mixed area, two stage flocculation area and two stage sedimentation area, and two stage sedimentation area and two stage second mixed area still are connected with two stage circulation area, and one stage sedimentation area intercommunication two stage first mixed area, the utility model discloses a turbidity removal sedimentation section and the coordinated sedimentation section who sets up in intercommunication, and turbidity removal sedimentation section reduces the turbidity through higher hydraulic load, and reduces the suspended solids in mine water, and in the coordinated sedimentation section water, there is a certain amount of suspended solids and microsand together with the improvement coal slime's drop characteristic, and the sedimentation effect is improved.

The present invention relates to a method for extracting and purifying pea proteins, comprising the steps of (a) providing an aqueous composition comprising pea proteins; (b) isolating said pea proteins from said aqueous composition comprising pea proteins; (c) obtaining said isolated pea proteins as an aqueous slurry having a pH ranging from 4.0 to 5.8; and (d) subjecting said aqueous slurry having a pH ranging from 4.0 to 5.8to a temperature of at least 75°C. Also described herein are pea protein compositions and are food or feed products comprising said pea protein compositions.

The utility model discloses an auxiliary filter assembly for industrial cleaning machine, including cleaning machine body, cleaning chamber and drain valve, cleaning chamber is provided in the top of cleaning machine body, drain valve is fixed mounting in the left side of cleaning machine body, drain valve is communicated with cleaning chamber. Cleaning water is filtered by arranging the filtering mechanism, the filtering box and the filtering plate, the turbidity of water after cleaning can be remarkably reduced, the filtered cleaning water can be pumped by the water pump and flows back to the cleaning cavity through the third connecting pipe to be reused, the replacement frequency of the cleaning water is greatly reduced, and therefore water resources are saved, and the cleaning efficiency is improved. The cleaning cost is reduced, and the problems that in actual use, when impurities are too many after cleaning, the adsorption plate is saturated in adsorption, so that the impurities still appear in water, water needs to be discharged again to be replaced with a new water source after one-time cleaning operation is completed, and water resources are wasted are solved.