101 results about "Polyaluminium chloride" patented technology

The invention discloses a method for preparing a water purifying agent polyaluminum chloride by recycling secondary aluminum ash, which comprises the following steps: S1, mixing the secondary aluminum ash with a composite additive solution, stirring and reacting at 70-90 DEG C, then carrying out solid-liquid separation, and drying the solid; s2, the obtained pretreated aluminum ash and calcium carbonate are mixed, pre-roasted at the temperature of 900-1000 DEG C and then fused at the temperature of 1300-1400 DEG C, and cooling is conducted; and S3, firstly adding the obtained roasted material into 20-25wt% of hydrochloric acid, heating the obtained slurry to 80-105 DEG C, stirring and leaching, then adding water into the acid leaching solution to dilute until the final concentration of the hydrochloric acid is 5-10wt%, then heating to 80-105 DEG C, continuing stirring and leaching, cooling and filtering, and concentrating and crystallizing the filtrate to obtain the polyaluminum chloride. According to the method, the quality of the polyaluminum chloride is greatly improved through the methods of oxidation enhanced water washing, two-stage dynamic roasting, gradient acid leaching, by-product recovery and the like.

The invention relates to a Kava pepper root extract with soothing, repairing and anti-wrinkle effects as well as a preparation method and application thereof, and belongs to the technical field of biological medicines and cosmetics. According to the method, hydroxypropyl-cyclodextrin and / or sulfobutyl-cyclodextrin are / is used as an extracting agent to fully extract the main functional component kavain in the kava pepper root powder, and a fat-soluble component kavain is clathrated by using the hydrophilicity and clathration effect of hydroxypropyl-cyclodextrin and sulfobutyl-cyclodextrin, so that the extraction efficiency of kavain is improved, and the yield of kavain is increased. The extract which contains the kavain and is soluble in water is obtained. The mixture of polyaluminum chloride and diatomite is used as an impurity removal agent to fully remove unstable components and pigments in the crude extract, and the prepared kavain extract has high purity and extraction rate, and has good solubility in water and good stability. The kava pepper root extract and the centella asiatica extract are combined to achieve a synergistic repairing effect, and the composition can be widely applied to the industries of biological medicine, cosmetics and the like.

The invention discloses an advanced treatment method of tungsten beneficiation wastewater, which is characterized in that a composite flocculant is adopted to flocculate the tungsten beneficiation wastewater, and the composite flocculant is mainly composed of cationic polyacrylamide, a flocculant A and lignocellulose, the flocculant A comprises at least one of polyferric sulfate, polyaluminum chloride, polyaluminum ferric chloride, polyaluminum ferric sulfate, ferric sulfate, ferrous sulfate and aluminum chloride. According to the advanced treatment method for the tungsten beneficiation wastewater, under the action of the composite flocculant, the cost of a treatment agent can be reduced to about 0.16-0.20 yuan / m < 3 >, the cost reduction amplitude is as high as 80% or above, the treatment time can be shortened to be within 10 min, the precipitation time is greatly shortened, meanwhile, suspended solids in the wastewater can be effectively removed, actual production requirements are met, and the method is suitable for industrial production. The method has the advantages of low treatment cost, high treatment efficiency, good removal effect, good adaptability and the like, can realize advanced treatment of the tungsten beneficiation wastewater, and is high in use value and good in application prospect.

The invention relates to the technical field of chemical wastewater treatment, in particular to a heat treatment device and a treatment method for synthesizing polyaluminum chloride from aluminum trichloride wastewater. The heat treatment device for synthesizing the polyaluminum chloride from the aluminum trichloride wastewater comprises a main body, a reaction cavity is formed in the main body, and a feeding pipe and an exhaust pipe are arranged at the top of the reaction cavity; the four-shaft stirring mechanism is arranged at the top of the main body and comprises a stirring motor, a transmission assembly and four stirring paddle groups, the stirring motor is in driving connection with the stirring paddle groups through the transmission assembly, and the stirring motor enables the adjacent stirring paddle groups to rotate in opposite directions; the heating ring sleeve is arranged outside the main body; the rotary heat exchange mechanism extends upwards from the bottom of the main body, is positioned in the center of the reaction cavity, and is embedded in the middle of the four-shaft stirring mechanism. According to the heat treatment device provided by the invention, the controllable dynamic curing effect can be achieved in the process of synthesizing aluminum trichloride wastewater into polyaluminum chloride, and the treatment effect and efficiency are effectively improved.

The invention discloses a preparation method of a polyaluminum chloride water purifying agent. Comprising the following steps: step 1, dissolving aluminum trichloride hexahydrate in deionized water, raising the temperature to 70-80 DEG C, slowly dropwise adding a sodium hydroxide solution, reacting for 1-2 hours, and then curing for 24 hours to obtain a polyaluminum chloride solution; and 2, adding the modified chitosan into glacial acetic acid, carrying out ultrasonic stirring for 30-40 min, raising the temperature to 70-80 DEG C, slowly adding a polyaluminum chloride solution, dropwise adding a sodium hydroxide solution, carrying out a reaction for 1-2 h, and after the reaction is completed, carrying out static curing for 24 h to obtain the polyaluminum chloride water purifying agent. The water purifying agent has the beneficial effects that the chitosan is modified and compounded with the polyaluminum chloride, so that the water purifying capability is effectively improved.

The present invention relates to the technical field of polyaluminium chloride water purifiers, specifically discloses a water purifier based on polyaluminium chloride and a preparation method thereof, the water purifier is made by mixing polyaluminium chloride magnesium silicate composite solution, modified starch modified chitosan composite solution and magnetized active kaolin, ultrasonic dispersion, slaking and drying; wherein polyaluminium chloride magnesium silicate composite solution is made of aluminium chloride, magnesium chloride hexahydrate and trichloroethylsilane; modified starch modified chitosan composite solution is made of starch modified by dimethyl diallyl ammonium chloride and acrylamide, and chitosan modified by diethyltriamine pentaacetic acid; magnetized active kaolin is made of ferric chloride hexahydrate, sodium silicate and acidified kaolin. The water purifier of the present invention contains a variety of efficient flocculation adsorption components, not only has the function of traditional polyaluminium chloride mesh sweeping, but also can synchronously and efficiently remove pollutants such as ammonia nitrogen, total phosphorus, COD and suspended matter in water.

The utility model relates to mixing equipment technical field especially relates to a kind of polyaluminium chloride raw material mixing device, including mixing tank body, the top of mixing tank body is fixedly installed with driving motor, driving motor is connected with conveying box by material conveying structure, the top of conveying box is connected with feeding hopper, the outside of feeding hopper is provided with dust reduction assembly for reducing dust generated when feeding, the left side outer wall of mixing tank body is provided with water supply assembly for providing water flow for dust reduction assembly, the front of mixing tank body is fixedly installed with transparent observation window for facilitating the observation mixing effect.The utility model is cooperated by setting dust reduction assembly and water supply assembly, can continue to spray water mist in the feeding process, the dust generated by material pouring, conveying friction is quickly adsorbed and settled, effectively reduce the dust content in production environment, greatly reduce the risk of operator's illness, improve the working environment of production workshop simultaneously, meet environmental protection and occupational health safety requirements.

The invention belongs to the technical field of ramming materials, and particularly relates to a light inorganic plastic ramming material. The composite material comprises a fiber base material, a low-density filler, a viscous filler, an inorganic binder and water, the inorganic binder is a jelly formed by mixing a polyaluminum chloride solution and alkaline silica sol, and the weight ratio of polyaluminum chloride to alkaline silica sol is 1: (55-70). According to the technical scheme provided by the invention, the inorganic binder is matched with the viscous filler to serve as a normal-temperature binder, and an organic binder such as polyacrylamide in the prior art is replaced; organic matters are avoided in the formula, the ramming material can be directly used after in-situ construction, transferring for pre-burning for discharging organic impurities and increasing redundant processes and energy consumption are not needed, the construction cost is lower, the long-term use temperature of the ramming material provided by the invention can reach 1050 DEG C, and the highest use temperature reaches 1100 DEG C.

The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle for producing and processing polyaluminum chloride. Comprising a reaction kettle body, a stirring module is arranged on the surface of the upper end of the reaction kettle body, a discharging pipe is fixedly communicated with the surface of the bottom end of the reaction kettle body, an adjusting mechanism is arranged on the arc surface of the reaction kettle body and comprises a feeding pipe and a material frame, and one end of the feeding pipe is fixedly communicated with the arc surface of the reaction kettle body; the surface of the material frame is fixedly connected with an acrylic plate, the surface of the bottom end of the material frame fixedly communicates with a butt joint pipe, the arc face of the butt joint pipe is connected with the inner wall of the feeding pipe in an inserted mode, the two sides of the arc face of the butt joint pipe are fixedly connected with fixing frames, the inner walls of the fixing frames are rotationally connected with rotating rods, and the arc face of the upper end of the feeding pipe is fixedly connected with a butt joint frame. The reaction kettle for producing and processing polyaluminum chloride has the advantages that auxiliary materials can be conveniently added into the reaction kettle, and the production efficiency and the quality of a final product can be effectively improved.

The device comprises a filter box, a drying box, a vibrating plate and a brush plate, discharge ports are formed in the left side and the right side of the bottom of the inner side of the filter box, a filter screen is detachably mounted at an opening above the discharge port in the left side, and a first motor is fixedly mounted in the center of the top end of the filter box; a first transmission rod is movably installed in the center of the top end of the inner side of the filtering box, scraping plates are fixedly installed on the two sides of the surface of the first transmission rod, and the lower portion of the side wall of the filtering box is fixedly connected with the left side of the top end of a drying box through a supporting frame; a supporting shaft is movably installed below the right side in the drying box, and the top end of the supporting shaft is fixedly connected with the right side of the bottom of a vibration plate. According to the vibrating plate recycling device, the brushing plate is arranged to brush material residues possibly remaining on the surface of the vibrating plate, so that residues are avoided, and the recycling efficiency is improved.

The utility model relates to a quick drying device for polyaluminum chloride production, which comprises a drying box, a layering plate is fixedly arranged in the drying box, a grading drying assembly is arranged in the drying box, and the grading drying assembly comprises a first drying cylinder, a second drying cylinder, a third drying cylinder, a first round ball, a second round ball, a rotating handle, an air outlet hole and a hot air dryer. Raw material slurry with different moisture contents can be placed in the three placing plates through the placing plates, the raw material slurry in the placing plates can be subjected to high-temperature drying through hot air along air outlet holes through a hot air dryer, waste heat enters a second drying cylinder through a first round ball, and the raw material primary slurry in the second drying cylinder is dried; and through a second round ball, waste heat in the second drying cylinder can enter a third drying cylinder, and the temperatures of three times of drying are sequentially reduced, so that graded drying treatment can be carried out on raw material slurry with different water contents, the drying efficiency is high, and drying is more thorough.

A coagulant comprising a metallic salt and an acid carrier having at least one inorganic salt, an acid, and water. The metallic salt can be ferric chloride, ferric sulfate, aluminum sulfate, polyaluminium chloride, aluminum chlorohydrate, or a combination thereof. The acid carrier may comprise a first inorganic salt and a second inorganic salt. The first inorganic salt can be ammonium sulfate, and the second inorganic salt can be ammonium bisulfate. The acid can be phosphoric acid, a hydrogen halide, nitric acid, sulfuric acid, or a combination thereof. Mixing the coagulant with raw water generates a plurality of acid pockets in the raw water, causing reactions between the blended coagulant and the dissolved organic matter.

The invention belongs to the technical field of sewage treatment equipment, and particularly relates to a polyaluminum chloride sewage treatment device for sewage treatment, which comprises a coagulation mechanism, a chemical feeder, a flocculation mechanism, an air dissolving head and an air flotation treatment mechanism, the coagulation mechanism comprises a coagulation box and an abnormal wave folded plate, the abnormal wave folded plate is fixedly arranged in the coagulation box, and the chemical feeder is arranged in the coagulation box. A cavity of the coagulation box is divided into continuous water channels by the different-wave folded plate, the chemical feeding device is mounted on the coagulation box, the flocculation mechanism comprises a flocculation pipe and a gas dissolving pipe, the flocculation pipe and the gas dissolving pipe are horizontally arranged, and the liquid outlet pipe, the flocculation pipe and the gas dissolving pipe are sequentially connected through pipelines. The air dissolving head is installed at the end, away from the air flotation treatment mechanism, of the air dissolving pipe, the bottom of the air flotation treatment mechanism is connected with the air dissolving pipe through a pipeline, through a floc cultivation environment self-driven by hydraulic power, damage of strong shear force to micro floc is avoided, and the problem that a stirring mechanism of the stirring equipment continuously destroys the floc structure is effectively solved.

The invention belongs to the technical field of wastewater treatment, recycling and energy regeneration, and particularly relates to a photosynthetic bacterium granulation method with PAC as a carrier and application. According to the present invention, the granulation material polyaluminum chloride (PAC) is adopted as the core carrier, the single pure photosynthetic bacterium particle agglomeration can be stably achieved in combination with the adjustment of the water conservancy condition in the reactor, and the agglomerated photosynthetic bacterium particle can produce hydrogen in the high-concentration wastewater so as to achieve the efficient treatment of the wastewater. Results of the embodiment of the invention show that the overall particle size of the photosynthetic bacteria agglomerated by the method is larger, the chemical oxygen demand (COD) in a water body is obviously reduced, and the hydrogen production efficiency is obviously improved.

The application relates to a safe treatment device for phosphorus-containing and arsenic-containing waste liquid, which comprises a crushing mechanism for containing the phosphorus-containing and arsenic-containing waste liquid and crushing solid matters in the waste liquid; a first closed reaction container for receiving the waste liquid from the crushing mechanism; an oxidation mechanism comprising a sodium hypochlorite storage tank one and a sodium hydroxide storage tank two; a second closed reaction container for receiving the waste liquid from the first closed reaction container; and a precipitation mechanism comprising a calcium chloride storage tank three, a lime milk storage tank four, a ferric chloride storage tank five and a polyaluminum chloride storage tank six. The application can effectively treat elemental phosphorus and simultaneously dispose of the arsenic-containing waste liquid, solves the problem that the prior art lacks a device for simultaneously and safely treating the phosphorus-containing and arsenic-containing waste liquid, reduces equipment investment and operation cost, and improves the treatment efficiency.

The invention discloses a semiconductor wastewater defluorination agent and a preparation method and application thereof, and belongs to the technical field of semiconductor fluorine-containing wastewater, the semiconductor wastewater defluorination agent comprises the following preparation raw materials by mass: 10-30% of modified zirconium-based composite powder, 25-50% of calcium magnesium salt, 5-25% of polyaluminum chloride, 2-8% of a composite synergist, 0.05-1% of a flocculant and the balance of water. The preparation method comprises the following steps: S1, pre-preparing raw materials; s2, preparation of a premixed solution: sequentially adding polyaluminum chloride and a composite synergist into water, and mixing to obtain the premixed solution; s3, preparation of a product: adding the modified zirconium-based composite powder and calcium magnesium salt into the premixed liquid, dispersing, and finally adding a flocculating agent, so as to obtain the semiconductor wastewater defluorination agent. According to the method, a precipitation-adsorption-flocculation synergistic system is constructed, deep fluorine removal of the semiconductor fluorine-containing wastewater is achieved, and the method has the advantages of being high in anti-interference capacity, low in treatment cost and high in operation flexibility, can adapt to fluorine-containing wastewater of different concentrations and stably reaches the standard.

The utility model relates to the technical field of chemical engineering, in particular to a system for preparing polyaluminum chloride. The system comprises: a reaction unit; the solid-liquid separation device is communicated with the reaction unit; the membrane filtration device is communicated with the solid-liquid separation device; and the drying device is communicated with the membrane filtration device. The system integrates a reaction unit, a solid-liquid separation device, a membrane filtration device and a drying device to form a complete polyaluminum chloride preparation process. By arranging the membrane filtration device between the solid-liquid separation device and the drying device, on one hand, the polyaluminum chloride liquid can be effectively concentrated, so that the concentration of the polyaluminum chloride liquid is improved, and the energy consumption required in the drying process is correspondingly reduced; and on the other hand, the membrane filtration device can ensure that the concentration of the polyaluminum chloride liquid entering the drying device is stable, so that the product quality is improved and the energy consumption is reduced.

The utility model discloses a feeding device for producing polyaluminum chloride, which comprises a reaction kettle tank body, a stirring device, a powder feeding port, a liquid feeding pipe and a cold water pipe are arranged at the upper end part of the reaction kettle tank body, a heating device is arranged on the outer side wall of the reaction kettle tank body, a feeding device is arranged above the powder feeding port, and the liquid feeding pipe is connected with the heating device. The feeding device comprises a hopper, a material groove, a rotating wheel and a rotating motor, the hopper is arranged at the top of the material groove, the material groove is communicated with the powder feeding port, the rotating wheel is movably installed in the material groove, the outer side wall of the rotating wheel is tightly attached to the inner side wall of the material groove, and symmetrically-distributed grooves are formed in the outer side wall of the rotating wheel. The powder feeding device has the advantages that heat released by reaction is controlled by feeding quantitative powder, slurry boiling and overflowing caused by excessive one-time feeding of the powder are avoided, the rotating motor controls the rotating speed of the rotating wheel, namely, the feeding speed of the powder is controlled, and slurry boiling and overflowing caused by too high feeding speed are avoided.

The invention mainly relates to the technical field of sewage treatment, in particular to a precipitation device for polyaluminum chloride production, which comprises a driving mechanism, a mixing mechanism, a water inlet pipe, a drain pipe and a sewage discharge channel, the driving mechanism is arranged at the top of the mixing mechanism, the water inlet pipe is arranged on the side wall of the top end, the drain pipe is arranged at the top, and the sewage discharge channel is arranged at the bottom of the mixing mechanism; the mixing mechanism comprises a shell and a feeding device, a water returning device, a mixing device and a dirt removing device which are arranged in the shell, the feeding device is arranged on the inner wall of the top end of the shell, the central axis of the water returning device and the central axis of the mixing device coincide with the symmetry axis of the mixing mechanism, and the water returning device is arranged in the mixing device; the mixing mechanism is divided into an upper mixing area, a middle settling area and a lower water return area along the axial direction of the mixing mechanism, and the decontamination device is arranged in the middle settling area and is used for grinding and removing floccules. The device disclosed by the invention can quickly remove flocculate precipitates, reduce blockage and improve the working efficiency.

The invention relates to the technical field of preparation of polyaluminum chloride, and particularly discloses a method for preparing polyaluminum chloride by using lithium hexafluorophosphate byproduct fluorine-containing hydrochloric acid as a raw material, the method comprises the following steps: S1, calcining: calcining kaolinite pyrite tailings to obtain calcined kaolin; s2, leaching reaction: mixing the calcined kaolin with fluorine-containing hydrochloric acid for reaction to obtain an aluminum chloride oligomer mixed solution; s3, polymerization reaction: adding calcium aluminate into the aluminum chloride oligomer mixed solution for polymerization reaction to obtain a polyaluminum chloride mixed solution; s4, filtering: filtering the polyaluminum chloride mixed solution to obtain a polyaluminum chloride solution; and S5, drying: drying the polyaluminum chloride solution to obtain solid polyaluminum chloride. The technical problem that in the prior art, in a technological method for resource utilization of fluorine-containing hydrochloric acid waste water generated in lithium hexafluorophosphate production, calcium salt needs to be added in a pre-sequence or post-sequence process to remove fluorine elements, and consequently the cost is high is solved.

The invention discloses equipment for preparing high-purity copper powder and polyaluminum chloride from acid etching waste liquid and an energy-saving co-production process of the equipment, and relates to the technical field of acid etching waste liquid recycling, the equipment comprises a supporting base, a reaction assembly is arranged at the top of the supporting base, and the reaction assembly comprises a preparation tank body, a sealing cover and a telescopic rod. According to the aluminum sheet extrusion device, the top of the pressing ring can be connected through the telescopic rod and the guide piece, the top of the guide piece is in lap joint with the adjusting block through the contact head, when the cam rotates, the guide rod can be driven to reciprocate on the top of the supporting plate, the guide piece can be driven to ascend and descend through the adjusting block, and therefore the use height of the pressing ring and the use height of the guide disc are adjusted, and aluminum sheets are extruded; the flow of the waste liquid inside and outside the mixing tank can be accelerated, and then the aluminum sheets are stirred through the stirring blades, so that the aluminum sheets fully contact and react with the waste liquid; and the filter screen is arranged in the filter box, copper powder in the waste liquid can be rapidly separated, copper powder residues in the waste liquid are reduced, and follow-up concentrated recovery of the copper powder is facilitated.

The utility model discloses a drinking water grade polyaluminum chloride detection device, which relates to the technical field of quality inspection of water purifiers and comprises a base, a circular groove is formed in the upper surface of the base, a turntable is arranged in the circular groove, a stand column is vertically connected to the center of the upper surface of the base, and a top plate is connected to the top of the stand column. A controller is mounted in the base, a first bearing is connected between the outer side of the bottom of the turntable and the base, and a first gear ring is connected to the bottom of the turntable close to the outer edge. According to the utility model, the detection mechanism is arranged, so that the turbidity of the clear liquid above the precipitate can be detected through the turbidity sensor to replace manual visual inspection of precipitation completion, and the accuracy and speed of polyaluminum chloride water purification efficiency quality inspection are improved; by arranging the feeding mechanism and the cleaning mechanism, the steps of feeding, stirring, detecting, precipitating, waste discharging and cleaning can be automatically and continuously completed in the detection process of the water purification efficiency of the polyaluminum chloride, the hands of workers are liberated, and the detection efficiency is improved.

The invention discloses a composite flocculant and a use method thereof, and belongs to the technical field of sewage treatment.The composite flocculant is prepared from, by mass, 5-10 parts of cationic polyacrylamide, 1-5 parts of polyaluminum chloride, 1-5 parts of chitosan quaternary ammonium salt, 7 parts of cationic polyacrylamide, 1 part of polyaluminum chloride and 2 parts of chitosan quaternary ammonium salt. Comprising a step of preparing a composite flocculant solution and a step of adding the solution to improve the settling performance and activity of activated sludge and strengthen the dewatering of excess sludge, and the step of preparing the composite flocculant solution comprises the following steps: S1, weighing cationic polyacrylamide, polyaluminum chloride and chitosan quaternary ammonium salt according to the proportion; according to the present invention, through the chitosan quaternary ammonium salt-polyaluminum chloride-cationic polyacrylamide gradient flocculation mode, the multiple effects of synchronously improving the activated sludge sedimentation performance, enhancing the microbial activity and enhancing the excess sludge dewatering are achieved, and the technical effects of high efficiency and biocompatibility are provided.

The present application relates to a kind of high-efficiency sludge dewatering agent and its preparation method, belong to high polymer material technical field.The high-efficiency sludge dewatering agent includes by weight portion: modified polyacrylamide 10-30 parts, modifier 5-10 parts, polyaluminum chloride 15-25 parts, deionized water 40-50 parts, diatomite 1-2 parts, activated carbon 1-2 parts, calcium oxide 1-3 parts, wood ash 1-3 parts;The high-efficiency sludge dewatering agent prepared by the present application not only has good dewatering effect, but also has excellent sterilization effect.

The application discloses a kind of polyaluminium chloride waste residue recovery device and method thereof, belong to waste residue recovery technical field.A kind of polyaluminium chloride waste residue recovery device, including the handling box being provided with conveying assembly, the booster turbulence structure being set in handling box, booster turbulence structure is set in inside along the pusher moving in the length direction of handling box, pusher is provided with filter screen, filter screen is attached with the inner wall of handling box;Collision structure is set in handling box, and the liquid injection end on booster turbulence structure is formed turbulence direction towards drive part, and the bottom end of collision structure has a contact piece, and vibration structure is set in contact piece, and vibration structure is adapted with filter screen;The present application can break up cemented layer by using collision ball, then combine filter screen vibration to prevent crystallization blockage, cooperate with the backflow of guide cylinder Water flow enhances reaction uniformity, effectively solve the problem that existing technology is blocked by hydrochloric acid penetration, low dissolution rate, filter screen blockage.

The utility model relates to the technical field of polyaluminum chloride production, in particular to a drum drying device for polyaluminum chloride production, which comprises a support frame, a drum circumferentially provided with a material inlet and a material outlet is transversely and rotatably connected to the support frame, and a stirring mechanism is arranged in the drum. A stirring driving mechanism for driving the stirring mechanism to rotate and an overturning driving mechanism for driving the roller to rotate are arranged on the supporting frame, the positioning mechanism can position the roller in the state that the material inlet and the material outlet face each other, the overall gravity center does not deviate during discharging, the stability during discharging is improved, and meanwhile, the overturning driving mechanism can drive the roller to rotate. And the unloading energy consumption is reduced.

The utility model provides an anticorrosive lining structure of a polyaluminum chloride reaction kettle, which relates to the technical field of reaction kettles and comprises a reaction kettle main body, a kettle cover is arranged at the top of the reaction kettle main body, a pressing edge is arranged in the kettle cover, two limiting frames are arranged in the reaction kettle main body, vertical plates are arranged on one sides of the two limiting frames, and bottom plates are arranged at the bottoms of the two vertical plates. Lining plates are arranged on the surfaces of the two limiting frames, the two vertical plates and the bottom plate, a fixing frame is arranged on the tops of the two vertical plates, and the fixing frame is fixedly installed on the tops of the two vertical plates and the limiting frames and fixed through two fixing bolts, so that the vertical plates are fixed in the reaction kettle to complete replacement; in the whole replacement process, only the old vertical plate and the old bottom plate need to be pulled out, and the new bottom plate and the new vertical plate need to be inserted into the two limiting frames, so that the lining structure in the whole reaction kettle does not need to be shoveled, and the defect that the anti-corrosion lining in the reaction kettle cannot be rapidly replaced is overcome.

The invention discloses a polyaluminum chloride-plant extract composite flocculant as well as a preparation method and application thereof, and belongs to the technical field of sludge resource utilization. The preparation method comprises the following steps: mixing dry okra powder and dry banana peel powder according to a specific ratio, adding a sodium chloride solution for ultrasonic extraction, filtering, concentrating to obtain a plant extracting solution, and compounding the plant extracting solution with polyaluminum chloride according to a specific ratio. According to the invention, polyaluminum chloride is adopted to replace a traditional toxic synthetic polymeric flocculant, and carboxylic acid in the extract and polyaluminum chloride are utilized to generate a synergistic effect, so that a flocculation effect equivalent to that of polyacrylamide is realized, and meanwhile, the problems that the synthetic polymeric flocculant is residual in toxicity, difficult to degrade and difficult in sludge resource utilization are solved.

The invention relates to the technical field of filtering and processing of polyaluminum chloride, in particular to a solid-liquid separation device for processing finished product slurry of polyaluminum chloride and a recycling mechanism for filtering the slurry. A positioning screw groove is formed in the outer side wall of a frame body of a filtering plate frame main body and is connected with a filtering and recycling auxiliary mechanism; after a solid material falls off from the filter chamber, for the material adhered to the side of the bottom of the filter plate frame main body, the auxiliary filtering and recycling mechanisms are symmetrically arranged on the side of the filter plate frame main body to clean the material, so that the positive effect of improving the filtering and recycling benefits of the material is achieved; an electric telescopic rod in the filtering and recycling auxiliary mechanism pushes a bearing body to scrape and clean the side wall of the bottom of the filter plate frame main body, and an arranged cleaning brush and auxiliary accessories are matched with the bearing body for use, so that the material cleaning effect is improved; the positive influence on the filtering and recycling work of the polyaluminum chloride finished product is realized.

The present invention discloses a composite treatment agent for sewage treatment and a preparation method thereof. The composite treatment agent comprises the following raw materials, by weight: 50-60 parts of modified diatomaceous earth, 10-20 parts of zeolite powder, 10-20 parts of polyaluminium chloride, 10-20 parts of activated carbon, 5-10 parts of shell powder, 5-10 parts of polyacrylamide, and 4-8 parts of sodium lauryl sulfate. The composite treatment agent is prepared by mixing modified diatomaceous earth, zeolite powder, polyaluminium chloride, activated carbon, shell powder, polyacrylamide, and sodium lauryl sulfate in a specific ratio, so that the obtained composite treatment agent has good adsorption properties, can quickly and efficiently adsorb heavy metal ions in sewage, and can also complex organic pollutants in sewage, thus having good application prospects.