1032results about "Sedimentation separation" patented technology

Filter installations for suspended matter in flowing fluids, including filtration methods, uses and equipment and plants with filter installations. A device reducing the specific particle count of suspended matter by means of an energy input using ultrasound waves stabilized with electronic feedback loops and their harmonics in the fluids or in objects attached thereto. A flow pipe having a wall, which, on its outer side, its inner side, and / or in the wall has pairs of mutually opposite exciters of longitudinal waves and their harmonics, and / or reflectors, opposite the exciters of the flow pipe to a filter, which keeps the specific particle counts of the suspended matter in the filtered fluids to below the detectable limit.

The invention relates to the technical field of coal washing equipment, in particular to a lifting type peripheral transmission rake thickener operation system for coal washing, which comprises a working condition sensing module used for collecting slime water concentration, rake frame torque, slag layer thickness and equipment operation temperature data; the intelligent decision-making module is used for constructing a slime water sedimentation prediction model through an LSTM-GRU hybrid algorithm according to the data, and generating an equipment operation regulation and control instruction; the lifting transmission regulation and control module is used for adjusting the vertical height of a rake frame according to a regulation and control instruction to adapt to different slag layer thickness treatment requirements, and meanwhile, combining real-time feedback of the torque of the rake frame, dynamically adjusting the rotating speed of a peripheral transmission motor and optimizing coal slime and water separation conditions; and the safety early warning module is used for monitoring parameter mutation through a sliding window algorithm, and triggering corresponding strategies of different levels when the harrow torque and the slime water concentration exceed multiple groups of adaptability thresholds. Therefore, the problems that in the prior art, the height of the rake frame is fixed, regulation and control depend on manpower, and an early warning mechanism is extensive are solved.

The invention discloses a deep-cone thickener rake frame driving method and system based on a permanent magnet motor, and belongs to the technical field of mine solid waste disposal and filling, and the method comprises the following steps: collecting real-time operation parameters of the permanent magnet motor, the real-time operation parameters including stator current, voltage, rotating speed and output torque; based on the output torque, whether the deep-cone thickener is in a rake pressing state or not is recognized, and when the deep-cone thickener is in the rake pressing state, the reference rotating speed of the permanent magnet motor is controlled to be reduced; the real-time temperature of a stator winding and a rotor permanent magnet area in the permanent magnet motor is obtained, and when the real-time temperature is higher than a preset threshold value, the output power of the permanent magnet motor is controlled; acquiring historical load data of the deep-cone thickener, and modeling the historical load data and the output torque to obtain a historical load-torque model; and constructing a torque change prediction model based on the historical load-torque model, predicting future torque data by using the torque change prediction model, and identifying an impending rake pressing risk.

The invention discloses a resource regeneration method of waste lubricating oil, relates to the technical field of petrochemical engineering, and belongs to the patent classification number C10M175 / 06. The preparation method comprises the following steps: adding a composite flocculant into the waste lubricating oil, heating and stirring, and then carrying out magnetic separation to obtain pretreated waste lubricating oil; uniformly mixing the pretreated waste lubricating oil, glycerol and a Ni / Al2O3 catalyst, then heating and reacting under pressure, and cooling to room temperature to obtain a catalytic hydrogenation product; and carrying out reduced pressure distillation on the catalytic hydrogenation product, recovering the lubricant base oil fraction, adding methanol and concentrated sulfuric acid into the distillation residual liquid, heating for esterification reaction, and separating the liquid to obtain the biodiesel. In the pretreatment process, the composite flocculant is used for removing acid and particle impurities in the lubricating oil, a traditional alkali adding neutralization precipitation process is replaced, the method is environmentally friendly, and the recovery cost of enterprises is reduced.

Provided is a hydrogen sulfide removing agent that can be stably used while maintaining hydrogen sulfide removing ability equivalent to that of a hydrogen sulfide removing agent comprising an amorphous iron oxyhydroxide. This iron oxyhydroxide-based hydrogen sulfide removing agent contains amorphous iron oxyhydroxide and a crystalline component. The content of the amorphous iron oxyhydroxide is not less than the content of the crystalline component.

A device and method for assembling objects by generating an axial acoustic radiation force in order to position the objects on pressure nodes and / or antinodes and generating a transverse acoustic radiation force in order to move the thus positioned objects on a porous membrane contact structure.

The invention belongs to the technical field of flocculant adding, and particularly relates to a flocculant adding device of a medium-large mineral separation deep-cone thickener, which comprises a mixing tank, a bottom frame is fixedly mounted at the bottom of the mixing tank, a first storage box and a second storage box are mounted on a guide rod at the top of the bottom frame, and a first pumping pump is fixedly mounted at the top of the first storage box; a second pumping pump is fixedly installed at the top of the second storage box, a feeding assembly is arranged at the bottom of the bottom frame, a driving motor is fixedly installed at the top of the mixing tank, and a driving rod is rotationally arranged in the mixing tank. According to the flocculant adding device of the medium-large mineral separation deep-cone thickener, mixed liquid can conveniently flow to different positions of the mixing tank to be mixed through the spray holes and the movable ring, so that the mixing efficiency of a flocculant is improved, when the flocculant is mixed and prepared, a driving rod rotates to drive a driving wheel to rotate, the position of the movable ring is adjusted, and the flocculant adding effect is improved. Therefore, the mixed liquid can flow to different positions to be mixed, and the mixing efficiency is improved.

The invention discloses a processing technology of a quinoa seedling bud green juice bubble functional beverage, and belongs to the technical field of beverage processing. Comprising the steps of raw material pretreatment, crushing and juicing, filtration treatment, enzyme deactivation treatment, blending, sterilization treatment and carbonation treatment. In the filtering process, a product obtained after juicing is filtered through a 200-400-mesh filter screen and then filtered through a filter material; the filter material comprises modified PVDF (polyvinylidene fluoride), modified chitosan, modified MOFs (metal organic frameworks) and modified titanium dioxide. The modified MOFs are obtained by acetylating MOFs and then modifying the MOFs with a silane coupling agent; the modified PVDF is obtained by sequentially grafting sulfobetaine metacrylic acid ester, polyethylene glycol metacrylic acid ester and alkyl acrylate on PVDF; the modified chitosan is obtained by sequentially grafting PEG-acrylic acid and methyl methacrylate to chitosan; the modified titanium dioxide is obtained by modifying titanium dioxide through a silane coupling agent. The chenopodium quinoa seedling buds are made into the bubble functional beverage, so that the beverage is endowed with good taste; the filter material can reduce loss of protein and polyphenol and effectively retain nutritional ingredients.

The utility model relates to a safe operation protection system of a non-metal mud scraper and a mud scraping system. The safe operation protection system of the non-metal mud scraper comprises a scraper detection device, a tension early warning device and an electrical control system, the scraper blade detection device comprises at least one group of scraper blade detection devices, each group of scraper blade detection devices comprises two scraper blade detection devices which are oppositely arranged, each scraper blade detection device is connected with the electrical control system, and the scraper blade detection devices are used for being in contact with the two side ends of a scraper blade; the tensioning force early warning device comprises two opposite tensioning force early warning devices, each tensioning force early warning device is connected with the electric appliance control system, and the tensioning force early warning devices are used for making contact with the first chain wheel. The system can timely identify the faults such as asynchronous deviation and chain breakage of the two sides of the scraper.

The invention relates to a method for extracting lithium from a salt lake and synchronously removing silicon and boron. The method comprises the following steps: pre-treating and filtering lithium-containing brine; carrying out reverse osmosis concentration treatment to concentrate lithium to be more than 2.5 g / L; carrying out nanofiltration treatment to remove magnesium, calcium and sulfate ions; treating by adopting an electrodialysis system to obtain a high-silicon and high-boron desalted solution and a low-silicon and low-boron lithium concentrated solution; the low-silicon and low-boron lithium concentrated solution is treated with chelating resin and boron removal resin, so that magnesium and calcium ions are smaller than or equal to 2 mg / L, boron is smaller than or equal to 20 mg / L, and the refined lithium concentrated solution is obtained; concentrating by an evaporation system, adding a precipitant, precipitating, filtering, washing, crushing and demagnetizing to obtain a low-silicon low-boron battery-grade lithium carbonate product. The invention further discloses a system for extracting lithium from the salt lake and synchronously removing silicon and boron, the complex and low-efficiency boron removal and silicon removal nanofiltration process is adopted, and concentration of lithium and efficient removal of silicon and boron are synchronously achieved; silicon scaling pollution caused by membrane separation and heat exchanger tube nests is avoided, and deep removal of silicon and boron is realized.

The invention discloses a flocculation-controllable genetic engineering alga and a construction method and application thereof, and is characterized in that the genetic engineering alga is phaeodactylum tricornutum into which an enabling plasmid pPha-J47869-EG01992-eGFP-FSP is introduced, the FSP is directionally expressed on the outer side of a phaeodactylum tricornutum cell, and the construction method comprises the following steps: constructing an induced expression plasmid pPha-J47869-eGFP and a directional expression plasmid pPha-J47869-EG01992-eGFP; artificially synthesizing a codon-optimized FSP coding sequence, inserting the codon-optimized FSP coding sequence into the downstream of the eGFP of the directional expression vector, and constructing an enabling plasmid; finally, the enabling plasmids are electrically transformed into phaeodactylum tricornutum, an f / 2 plate culture medium is coated with the phaeodactylum tricornutum for culture, positive algae strains are screened and identified, and the gene engineering algae with controllable flocculation are constructed and have the advantages that the gene engineering algae can be efficiently combined with white carbon black, and the enabling process of microalgae is efficiently coupled with the culture and collection process of the microalgae.

The embodiment of the invention provides a sewage treatment method and device, and the method comprises the steps: obtaining water quality data of a target sedimentation tank, and calculating a water quality error based on the water quality data; according to the water quality error, a preset control algorithm is used for calculating a discharge control signal, and control parameters in the preset control algorithm are determined according to historical water quality errors; emission information corresponding to an emission mechanism of the target sedimentation tank is determined, the emission information is adjusted according to the emission control signal, target emission information is obtained, and the emission mechanism carries out sewage emission according to the target emission information. The discharge amount is dynamically adjusted according to the water quality change, the labor cost is reduced, discharge is automatically performed according to the target discharge information, and the water quality treatment efficiency of the sedimentation tank is improved.

The invention belongs to the technical field of chemical fertilizer production and livestock feed, and particularly relates to a combined preparation method of water-soluble potassium sulfate and feed-grade potash magnesium sulphate fertilizer. According to the method, the picromerite concentrate wet material is taken as an initial raw material, the picromerite concentrate wet material with relatively low potassium and magnesium content is purified into high-grade potassium sulfate and the potash magnesium sulphate fertilizer by utilizing hot melt mother liquor at different mother liquor points through multi-stage hot melt and multi-stage vacuum evaporative crystallization, so that efficient distribution and conversion of potassium and magnesium elements in the raw material are realized, resource waste is avoided, and the production cost is reduced. The comprehensive utilization rate of raw materials is greatly improved. Two high-added-value products, namely the water-soluble potassium sulfate and the feed-grade potassium-magnesium fertilizer, are prepared at the same time, and the blank of combined preparation of raw materials required by agriculture and animal husbandry is filled.

An apparatus for controlling output in a water treatment plant treating water includes: a chemical dosing management part configured to analyze real-time data to determine a control mode of chemical dosing optimization, and provide the determined control mode as a management command; a chemical dosing optimization part configured to analyze the real-time data to derive a control value such that the control value is to set a minimum of a chemical dosage to be dose in the water while a state of treated water of the water treatment plant is maintained in a normal range; and a chemical dosing output control part configured to provide the control value to a water treatment control device for controlling the water treatment plant, according to the control mode of the management command.

A system for softening high-salinity water via self-induced calcium bicarbonate crystallization in a fluidized bed, including a fluidized bed-based crystallization-softening reaction unit, a water feeding unit, a dosing unit and a regulation unit. The fluidized bed-based crystallization-softening reaction unit is configured to induce a crystallization reaction to soften high-salinity water. The water feeding unit is configured to supply high-salinity water to the fluidized bed-based crystallization-softening reaction unit. The dosing unit is configured to supply a pH regulating agent to the fluidized bed-based crystallization-softening reaction unit. The regulation unit is configured to perform reflux replenishment for the fluidized bed-based crystallization-softening reaction unit and recover escaping crystals. A high-salinity water softening method using such system is also provided.

The invention relates to the technical field of ardealite treatment technology, and discloses a method and a system for harmless treatment of ardealite, which are characterized in that fresh ardealite discharged by wet-process phosphoric acid filtration is re-pulped and then sequentially passes through a first-section reaction tank (added with fly ash and cement), a tank A of a second-section reaction tank, a tank B of the second-section reaction tank and a tank C of the second-section reaction tank for continuous reaction; performing solid-liquid separation to obtain harmless phosphogypsum; after the filtrate is settled, supernate is reused for repulping and lime milk preparation, and thick slurry is returned to the reaction tank; the reaction waste gas is washed with phosphoric acid acidic water, and washing liquid is reused for ore grinding; through multi-stage reaction and accurate pH control, the phosphogypsum stably reaches the class I solid waste standard, and the curing time is shortened from traditional several days to several hours; the system is deeply coupled with a front-end phosphoric acid system, and water balance and resource circulation of the system are realized by optimizing and filtering a washing water source and recycling steam condensate water; the process has the advantages of low cost, stable quality and flexible operation.

A method for separating particles in a biofluid includes pretreating the biofluid by introducing an additive, flowing the pretreated biofluid through a microfluidic separation channel, and applying acoustic energy to the microfluidic separation channel. A system for microfluidic separation, capable of separating target particles from non-target particles in a biofluid includes at least one microfluidic separation channel, a source of biofluid, a source of additive, and at least one acoustic transducer coupled to the microfluidic separation channel. A kit for microfluidic particle separation includes a microfluidic separation channel connected to an acoustic transducer, a source of an additive, and instructions for use.

An ore pulp thickening system for laterite-nickel ore, the system comprising an extrusion-type thickening device (1), a speed measurement system (2), and a control system (3), wherein the extrusion-type thickening device (1) comprises an inner barrel (11), an outer barrel (12) and a thickening mechanism (13), the inner barrel (11) is vertically arranged inside the outer barrel (12), has an upper part connected to an ore pulp feeding pipe (111) and a lower part connected to an ore pulp discharging pipe (112), and is provided with a concentration sensor (114), and a filtering surface is formed on a surface thereof; the speed measurement system (2) comprises a first speed measurement device (21) and a second speed measurement device (22) which are respectively arranged on the ore pulp discharging pipe (112) and a water drainage pipe (113); and the control system (3) comprises a first controller (31) and a second controller (32), and the first controller (31) is electrically connected to the speed measurement system (2) and a feeding valve (116). The system enables efficient concentration of ore pulp so as to save on the area occupied by apparatuses and costs.

The utility model discloses an internal circulation sulfur autotrophic denitrification nitrogen removal reactor, which relates to the technical field of biological sewage treatment and comprises a reactor tank body, and a water inlet pipe, a mud-water separator and a water outlet pipe are arranged in the reactor tank body from bottom to top; a dissipation area is formed between the outer wall of the mud-water separator and the inner wall of the reactor tank body; the mud-water separator comprises a baffle plate at the upper part and a vertical flow sedimentation tank at the lower part, the baffle plate is of a barrel structure arranged above the vertical flow sedimentation tank, and a baffle area is formed between the outer wall of the baffle plate and the inner wall of a vertical flow sedimentation pipe; the vertical flow sedimentation tank is of a funnel structure, a sedimentation area is formed in the vertical flow sedimentation tank, and the top of the vertical flow sedimentation tank is immersed below the liquid level; the sludge-water separator is arranged in the reactor, and sulfur powder and sludge are precipitated and recycled through the cooperation of the baffle plate and the vertical flow precipitation tank, so that the loss of filler is avoided, the utilization rate of the sulfur powder can be improved, and the filler cost is reduced.

The invention relates to the technical field of wastewater treatment, and discloses an on-site stirring wastewater treatment system and method for grouting material pouring construction, the on-site stirring wastewater treatment system for grouting material pouring construction comprises a pretreatment module, a coagulation module arranged on one side of the pretreatment module, and a precipitation module arranged on one side of the coagulation module; wastewater enters the sedimentation tank and flows upwards from bottom to top, the pretreatment module is used for preliminarily intercepting and separating large impurities in the wastewater, and the wastewater enters the sedimentation tank and flows upwards from bottom to top. Inclination of the inclined plate cooperates with water flow from bottom to top, light impurity sedimentation is accelerated through gravity, the path is shortened, and the separation speed is increased. The shaking unit actively dredges, sludge is prevented from being attached to form a film, the cleanliness of an inclined plate and the effective sedimentation area are kept, effluent is more uniform, the removal rate of suspended solids is higher, and the recycling or discharging requirement is met.

The invention discloses a green continuous production process of electrolytic manganese dioxide, which comprises the following steps: mixing a manganese-containing raw material and sulfuric acid according to a mass ratio of 1: (1.2-1.5), and then carrying out acid leaching at 80-90 DEG C for 2-3 hours to improve the manganese leaching rate to 91-98%; 10-15% hydrogen peroxide oxidation is combined with accurate regulation and control and flocculent precipitation of pH 5-6, so that the iron impurity residue is less than or equal to 5 ppm; in the electrolysis process, sulfuric acid is continuously supplemented to maintain the concentration of 150-180 g / L, the titanium-based lead dioxide anode and the stainless steel cathode are matched, and the current efficiency is 88-91.5%; and carrying out three-stage countercurrent washing and drying at 120-130 DEG C on the product to obtain the electrolytic manganese dioxide with the purity of more than or equal to 93%. The process provided by the invention is suitable for resource utilization of low-grade pyrolusite, and the obtained product is mainly used in the fields of lithium-manganese battery positive electrode materials, magnetic materials and catalyst carriers.

The invention relates to a method for intelligently predicting and optimally controlling the running state of an oilfield sewage settling tank, which comprises the following steps of: acquiring time sequence data by using a modular design reconfigurable settling system fused with multi-modal perception; combining a physical information neural network (PINN) algorithm to construct a mapping relation of working characteristics between an actual settling tank and an experimental settling tank: predicting the performance of the actual settling tank through data of the experimental settling tank; identifying and predicting the operation state of the experimental settling tank, and establishing a multi-parameter fuzzy comprehensive evaluation model; intelligent decision making and automatic control are carried out on the settlement system; a Markov decision process MDP is adopted as an optimization framework of a control decision, and the control decision is optimized in combination with a migration enhanced PPO algorithm, so that automatic adjustment of system performance is realized; and continuous self-optimization for the MDP decision process of the Markov decision process is realized. The problem that the operation state of the settling tank is difficult to monitor in real time and dynamically regulate and control in the traditional oilfield sewage treatment process is solved.

The invention relates to the field of plant extracts and daily chemicals, in particular to preparation and application of a penthorum chinense pursh leaf and stem extract with acne removing and oxidation resisting effects. The preparation method of the extract comprises the following steps: taking a penthorum chinense leaf and stem dry product, carrying out heating extraction or ultrasonic crushing extraction by taking water as a solvent, carrying out purification and impurity removal or filtration and impurity removal by using a chitosan quaternary ammonium salt-sodium alginate combined biological flocculation method, taking supernate, carrying out vacuum concentration, and carrying out spray drying, so as to obtain the penthorum chinense leaf and stem extract. The content of the quercitrin in the index component is more than or equal to 16mg / g. The effect of the invention is extracted from the characteristic medicinal and edible plant penthorum chinense pursh in China, is high in safety, has obvious acne-removing and anti-oxidation effects, and is a novel functional cosmetic plant raw material with excellent application prospect.

The invention discloses an enhanced separation device and method for washing, solid removal and defoaming of a coal liquefaction system. The enhanced separation device comprises a vertical tank body, and a gas outlet and a solid-liquid outlet are formed in the top end and the bottom end of the vertical tank body respectively; a momentum fin unit, a micro-washing spraying device, an inlet separation distributor and a hydraulic spray head are sequentially arranged in the vertical tank body from top to bottom, and a material inlet is formed in the position, corresponding to the inlet separation distributor, of the side wall of the vertical tank body; the momentum fin unit and the micro-washing spraying device are positioned above the inlet separation distributor; the hydraulic spray head is obliquely upwards arranged on the inner wall below the inlet separation distributor; and the solid-liquid outlet is connected with a circulating pump through a pipeline. The device is compact in structure, the separation process is simplified, fine particles are trapped and separated only through gravity settling, the inertia effect and the like, and efficient and stable operation of the system is facilitated.

A hydrometallurgical process for recovering a plurality of metals from a complex rare and precious material, comprising the following steps: step 1: adding a complex rare and precious material to a hydrochloric acid solution, adding an oxidant for reaction, and then performing filtration to obtain a chlorination liquid and a chlorination residue; step 2: using two-stage counter-current gold loading to obtain a gold-loaded liquid and a post-loading liquid, reducing the gold-loaded liquid, performing clarification to obtain an organic phase, and filtering a precipitate to separate a post-reduction liquid and sponge gold; performing evaporation and concentration on the post-reduction liquid to produce a concentrate 1 and a condensate; and cooling and crystallizing the concentrate, performing filtration to obtain residual oxalic acid, and returning the residual oxalic acid to the reduction process and a post-crystallization liquid to gold loading; step 3: performing low-temperature distillation on the post-loading liquid to obtain a concentrate 2; step 4: performing high-temperature distillation on the concentrate 2 to obtain a concentrate 3; step 5: performing directional crystallization and centrifugal filtration on the concentrate 3 to obtain a crystallization residue and selenous acid; and step 6: washing the crystallization residue by using cold water or a low-acid-level condensate produced in step 3, and performing filtration to obtain a tellurium residue and a palladium-platinum-rhodium-rich liquid.

Contaminants in a liquid are removed using bubbles containing ozone and / or other gas in a method having steps that include multistage shearing and venturi injection to increase dissolution of gases into the liquid, and the generation of bubbles introduced to the liquid by one or more of cavitation, vortex management, shear degradation, and ultrasonics. The liquid may be water, the contaminants are at least one of organic and inorganic contaminants, and the bubbles preferably have a diameter of 125 nanometers a density ratio of about 2.5 * 108 bubbles / cm3. A system that may be used for this method includes one or more pumps; optionally one or more settling tanks; optionally one or more dosing stations; an injector to introduce a gas to the fluid; an Ultrafine bubble (UFB) generator to produce UFB's; optionally one or more sensors; optionally a safety system; and optionally a controller.

The present invention relates to the technical field of old battery recycling, and particularly relates to a resource recycling and separation device for waste lithium batteries, including a precipitation tank. A separation mechanism is installed inside the precipitation tank. The separation mechanism includes through grooves. There are two through grooves. A first connecting rod is slidably installed inside the two through grooves. There are two first connecting rods. First floats are fixedly installed at the bottoms of the two first connecting rods. Slide rails are slidably installed on the surfaces of the two first connecting rods. A first mounting plate is fixedly installed at the top of the inner cavity of the precipitation tank. Tooth plates are fixedly installed on both sides of the first mounting plate. Through the setting of the separation mechanism, the present invention can perform stirring in multiple directions. Stirring in multiple directions can more comprehensively mix the battery waste liquid and the precipitate, ensure uniform distribution of components, improve the separation efficiency, increase the sedimentation speed of the precipitate, accelerate the separation process, more effectively mix the materials, reduce energy consumption, and save costs.

The utility model discloses a sludge scraper for a sewage treatment tank, which belongs to the technical field of sludge scrapers and comprises a sewage tank, a mounting frame is arranged at the top of the sewage tank, after the mounting frame is mounted on the sewage tank in a limited manner, a motor works, a connecting frame and a scraper plate are driven by a moving mechanism to move together, and the scraper plate is driven by a motor to move. The connecting frame located on the front portion of the scraper plate can drive the gear in the connecting frame to move when moving, the gear rotates through meshing connection formed by the gear and the rack, and therefore the gear drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the belt, and the brush cylinder can rotate while the connecting frame drives the brush cylinder to move. The friction force between the brush cylinder and the inner wall of the sewage pool is increased, and the scraper plate at the rear part of the brush cylinder is matched, so that relatively stubborn sludge attached to the inner wall of the sewage pool can be effectively and quickly scraped, the working efficiency is improved, and the use is convenient.

The utility model discloses a recycling device of stevioside mother liquor, and relates to the field of stevioside production, an outlet of a crude product powder tank is communicated with a dissolving tank, an outlet of the dissolving tank is communicated with a first crystallizing tank, an outlet of the first crystallizing tank is communicated with a first separator, and the first separator is communicated with a first crystal tank and a first crystallizing mother liquor tank; an outlet of the first crystallization mother liquor tank is communicated with a second crystallization tank through a pipeline, an inlet of the second crystallization tank is communicated to the crude product powder tank, an outlet of the second crystallization tank is communicated with a second separator through a pipeline, a solid phase outlet of the second separator is communicated with a second dryer, and an outlet of the second dryer is communicated with a second crystal tank; and a liquid phase outlet of the second separator is communicated with a second crystallization mother liquor tank. The primary crystallization mother liquor is used as a solvent to dissolve a new material and then is subjected to secondary crystallization, so that the solvent and solvent recovery energy consumption are saved, meanwhile, the product yield is improved, the additional value of mother liquor sugar is increased, the cost is low, and the method is suitable for industrial production.

The present invention primarily concerns a process for producing a plastic material, comprising the steps (i) providing a corn gluten source and a first liquid phase comprising an organic solvent; (ii) extracting solvent-soluble components of the corn gluten source into the first liquid phase; (iii) precipitating a first fraction of the solvent-soluble components out of the first liquid phase, resulting in a second solid phase including the first fraction of the solvent-soluble components and a second liquid phase including a second fraction of the solvent-soluble components; (iv) separating the second solid phase and the second liquid phase; and (v) recovering a flexible plastic material from the second liquid phase or recovering a hard plastic material from the second solid phase.