231 results about "Clarifier" patented technology

The invention discloses a composite clarifying agent for alkali-free glass and a manufacturing method of an alkali-free glass substrate, and relates to the technical field of glass manufacturing, the composite clarifying agent for alkali-free glass comprises the following components by mass: 12-30% of ammonium chloride, 48-73% of sulfate, and 11-25% of calcium fluoride; the preparation method comprises the following steps: adding a composite clarifying agent accounting for 0.2-1.2% of the total weight of the glass raw material into the glass raw material, uniformly mixing to form a batch, and carrying out melting, molding, spraying, annealing, cutting, alkali cleaning and other processes on the batch to finally prepare the glass substrate. The prepared composite clarifying agent does not contain toxic substances such as arsenic oxide and antimony oxide, the glass substrate produced by using the clarifying agent not only has an excellent clarifying effect, but also can recycle SO2 and NH3 gas generated in the melting process, can effectively solve the quality problems such as micro-flaws on the surface of the glass substrate in the production process, and has a good application prospect. And the production cost can be reduced and the product quality can be improved.

The invention belongs to the technical field of glass, and particularly relates to high-light-transmittance glass and a preparation method of the high-light-transmittance glass. The raw materials comprise the following components in parts by weight: 20 to 30 parts of quartz sand, 15 to 18 parts of sodium carbonate, 8 to 10 parts of limestone, 5 to 7 parts of dolomite, 0.3 to 0.5 part of a clarifying agent, 0.2 to 0.3 part of a coloring inhibitor, 0.1 to 0.2 part of lithium carbonate, 0.05 to 0.1 part of titanium dioxide, 0.1 to 0.3 part of zirconium oxide, 2 to 4 parts of aluminum oxide, 1 to 3 parts of boron oxide, 0.3 to 0.5 part of nano silicon dioxide sol and 1 to 3 parts of a high-temperature-resistant agent; and 1-5 parts of a wear-resistant agent. The quartz sand, the sodium carbonate, the limestone, the dolomite, the clarifying agent, the coloring inhibitor, the lithium carbonate, the titanium dioxide, the zirconium oxide, the aluminum oxide, the boric oxide, the nano silicon dioxide sol, the high-temperature-resistant agent and the wear-resistant agent are used as raw materials, so that the prepared glass is high in light transmittance, and meanwhile, the performance requirements of high strength, low spontaneous explosion rate and the like are met.

The present application discloses a clarifier and a water purifier, and belongs to the technical field of sewage treatment. The clarifier and the water purifier are provided. The lower end of the clarifier is closed. A throat pipe is arranged in the clarifier from the center of the bottom of the clarifier. A first reaction chamber is arranged in the upper part of the throat pipe. An annular second reaction chamber is arranged around the first reaction chamber. The first reaction chamber is connected to the second reaction chamber from the top. The second reaction chamber is connected to a separation chamber from the bottom. A sludge discharge pipe is arranged on the side of the bottom of the separation chamber. The top of the separation chamber is connected to a water outlet weir. The sewage added with a medicament enters a cyclone reaction area of the water purifier, and then flows into the clarifier through a primary flocculation reaction and a preliminary suspended clarification area to perform a first-stage and a second-stage flocculation reaction, so that the clarity of the clean water obtained after the sewage treatment is improved. The problem that the existing water purifier can only perform a first-stage flocculation reaction on the sewage and the sewage treatment effect is poor is solved.

The invention discloses a mixing and clarifying tank, a liquid level adjusting method thereof and a nuclide recovery and extraction system, which can adjust the liquid level of a two-phase interface in an overflow chamber by adjusting the air pressure difference between the overflow chamber and a clarifying chamber through an air pressure adjusting assembly, thereby avoiding the increase of maintenance workload of the mixing and clarifying tank due to the increase of mechanical moving parts. The mixing and clarifying tank comprises a clarifying tank body and a liquid level adjusting device. A sealing top cover is arranged at the top of the clarifying tank body, and the clarifying tank body comprises a mixing chamber, a clarifying chamber and an overflow chamber which are sequentially communicated from front to back; the overflow chamber is defined by a front heavy-phase flow baffle, a rear sealing baffle and a sealing top cover. The liquid level adjusting device comprises an air pressure adjusting assembly. The air pressure adjusting assembly is arranged in the overflow chamber and used for adjusting the air pressure difference between the overflow chamber and the clarifying chamber so as to adjust the liquid level difference between the highest liquid level in the overflow chamber and the liquid level of the two-phase interface in the overflow chamber, and then the liquid level of the two-phase interface in the overflow chamber is adjusted to the target liquid level.

The invention discloses a thermal power plant desulfurization wastewater zero discharge treatment method, which comprises: S1, carrying out triple-effect flash evaporation concentration treatment on desulfurization wastewater so as to reduce the amount, and storing the concentrated liquid after concentration in a concentrated liquid box; and S2, treating the concentrated liquid obtained in the step S1 by adopting a triple box process, enabling the treated water to enter a clarification tank for gravity settling, enabling clear water at the upper part to overflow to a wastewater collection box, and discharging sludge generated at the bottom to a gypsum dehydration belt through a sludge discharge pump. According to the invention, twice reduction of desulfurization wastewater is realized through triple-effect flash evaporation concentration and a triple-box process, so that the amount of desulfurization wastewater needing to be treated by a flue gas bypass system is reduced, the problems of pipeline pollution and blockage and frequent fault of an atomizer in the treatment process are reduced, and the reduced wastewater can be stored in a wastewater collection box during deep adjustment of a unit, so that the treatment efficiency of the unit is improved. Zero discharge of the desulfurization wastewater is realized, chloride ions in the slurry of the desulfurization absorption tower are controllable after zero discharge of the desulfurization wastewater, and the risks of slurry poisoning and gypsum diarrhoea of the absorption tower are reduced.

The utility model provides a system for directly recycling wastewater of a medium-high pressure boiler. The system comprises a collecting and regulating tank, a heat exchanger, a coagulation clarifier, a multi-medium filter, an ultrafiltration system, a secondary reverse osmosis system, an EDI (Electronic Data Interchange) device, a mixed bed and a user high-purity water tank which are connected in sequence, the second-stage reverse osmosis system comprises a first-stage reverse osmosis system and a second-stage reverse osmosis system, the first-stage reverse osmosis system comprises a first-stage RO raw water tank, a precision filter and a first-stage RO device, effluent of the ultrafiltration system enters the first-stage RO raw water tank and then enters the precision filter to be filtered, and water produced by the precision filter is fed into the first-stage RO device; the second-stage reverse osmosis system comprises a second-stage RO raw water tank and a second-stage RO device, fresh water produced by the first-stage RO device is fed into the second-stage RO raw water tank and then enters the second-stage RO device, and fresh water produced by the second-stage RO device is fed into the EDI device to be treated. According to the utility model, a full-flow treatment system is developed aiming at the water quality condition of the wastewater of the medium-high pressure boiler, and the finished water can stably meet the water supply requirements of the medium-high pressure boiler.

The utility model discloses a fixed bed clarifier. The fixed bed clarifier comprises a containing assembly, a feeding assembly and a filtering assembly, the containing assembly comprises a containing cylinder and a first end cover, the containing cylinder is arranged in the axial direction in a penetrating mode, and the first end cover is detachably installed at one end of the containing cylinder. The feeding assembly comprises a first feeding cylinder, and the first feeding cylinder is arranged in the containing cylinder, communicates with the containing cylinder and is arranged in the axial direction in a penetrating mode. The filtering assembly comprises a filtering plate and an overflow pipe, the filtering plate is installed between the containing cylinder and the first feeding cylinder, and the overflow pipe is installed in the containing cylinder, communicates with the containing cylinder and is located on the side, opposite to the first end cover, of the filtering plate. Compared with the prior art that slurry is injected from the bottom of the tank body, the first feeding cylinder is arranged at the top of the containing cylinder, filtration can be achieved through the dead weight of the slurry, a driving pump is not needed, and therefore energy consumption can be greatly reduced. The flocculating agent is fed in advance to primarily filter the slurry injected into the containing cylinder, and the filtering plate is matched to secondarily filter the slurry, so that the purification effect is good.

The invention discloses a lime coagulation dosing device based on self-adaptive control and a use method, and belongs to the technical field of sewage treatment. The device comprises a raw material supply unit, a dissolving and mixing unit, a dosing execution unit, a monitoring sensing unit and a control center unit, the raw material supply unit is connected with one side of the dissolving and mixing unit, and the other side of the dissolving and mixing unit is connected with the clarification tank; the dosing execution unit is arranged on a pipeline between the dissolving and mixing unit and the clarification tank; the control center unit is connected with the dosing execution unit and the monitoring sensing unit; and the monitoring sensing unit is arranged in the clarification tank. The device synchronously responds to key indexes such as pH, turbidity and temperature, the dosage is automatically adjusted according to real-time data, manual intervention is reduced, and the equipment maintenance difficulty is reduced by accurately adding the dosage and reducing lime consumption and sludge yield.

The invention discloses equipment and a method for preparing a glass clarifying agent from arsenic trioxide, and belongs to the field of glass clarifying agents. A device for preparing a glass clarifying agent through arsenic trioxide comprises a supporting ring frame, a feeding assembly is fixedly installed on one side of the upper portion of the supporting ring frame, a motor is fixedly installed in the middle of the supporting ring frame, a linkage transmission assembly is installed on the lower portion of the supporting ring frame, and a stirring paddle used for ore dosing treatment is fixedly installed on the lower portion of the linkage transmission assembly. The stirring paddle comprises a second branch stirring paddle, the second branch stirring paddle comprises a stirring shaft used for conveying materials, a sliding plate is installed in the stirring shaft in a sliding mode through a spring, and a dredging rod used for dredging the stirring shaft is fixedly connected to the outer portion of the sliding plate; the sliding plate in the stirring shaft is matched with the dredging rod, self-inspection dredging is achieved through centrifugal force, and the blocking problem caused by accumulation of sediments such as sulfate and calcium sulfate is solved.

A launder cover system for reducing or eliminating sunlight exposure so as to prevent algae growth in a tank such as a clarifier tank. The launder cover system generally includes a plurality of support members and a plurality of launder covers which are each independently pivotably connected to a tank wall of a tank, such as by using a mount. The support members are each pivotably connected to the tank wall by a pivot connector and the launder covers are each pivotably connected to the tank wall by a hinge connector. Each support member is positioned between a pair of launder covers, and each launder cover is positioned between a pair of support members. The support members function to support the launder covers in a raised or lowered position. A launder support may be connected to the channel wall to support the launder covers in their lowered positions.

The invention provides a treatment method and system for directly recycling wastewater of a medium-high pressure boiler, and the method comprises the following steps: the wastewater of the medium-high pressure boiler enters a collecting and regulating tank after being discharged, and then is fed into a heat exchanger through a booster pump; the treated wastewater enters a coagulation clarifier through system residual pressure, floc is formed, and effluent is clarified; feeding clarified effluent into a multi-medium filter through a booster pump; water produced by the multi-medium filter is fed into an ultrafiltration system; effluent of the ultrafiltration system enters a secondary reverse osmosis system, and fresh water produced by the secondary reverse osmosis system is fed into an EDI device through a booster pump to be treated; and pure water produced by the EDI device enters the mixed bed through system residual pressure, is subjected to fine desalination through ion exchange, and then is fed into a high-purity water tank of a user to be used as inlet water of a middle-high pressure boiler. The invention develops a full-flow treatment process aiming at the special water quality condition of the wastewater of the medium-high pressure boiler, and the finished water can stably meet the strict water quality requirement of the water supplied by the medium-high pressure boiler.

The invention provides a power plant sludge pump process control optimization method, and belongs to the technical field of power plant automation control. The sludge pump can at least partially solve the problems that the displacement cannot be accurately matched, the pipeline is easy to block, and the pump body is burnt out due to the fact that the control of the existing sludge pump depends on easily blocked pressure measuring points and unreliable manual flushing. The method comprises the following steps: acquiring a real-time liquid level of a clarification tank, and automatically starting sequence control when the liquid level reaches a high threshold value; in sequence control, effective flushing is ensured by monitoring the flow of flushing water; during the sludge pumping and discharging period, continuously monitoring the outlet flow of the sludge pump; and when the outlet flow is lower than an operation failure threshold value or the liquid level of the clarification tank is lower than a low threshold value, the pump stopping step is automatically executed. The automatic control system has the beneficial effects that closed-loop automatic control is realized by introducing the liquid level meter and the outlet flow meter, and a pressure measuring point which is easy to block is replaced by outlet flow monitoring, so that the problem that the pump body is burnt due to idling is fundamentally avoided.

The invention discloses a waste paper papermaking method capable of improving the cyclic utilization rate of white water, and relates to the technical field of waste paper papermaking. The tailings treated by the clarifier are recycled and used for preparing white water; in a papermaking workshop, white water is recycled through an off-machine white water tank; in a pulping workshop, a multi-disc fiber recycling machine is adopted for grading redundant white water in the workshop; the ultra-clear white water is filtered by a super-filter and then is used for a net part low-pressure spraying system and a pressing part low-pressure spraying system of a papermaking workshop; reusing the turbid white water into a pulper for pulping so as to recover fibers in the white water; and in a wastewater workshop, the wastewater subjected to anaerobic and aerobic treatment is treated by an ultrafiltration membrane and a reverse osmosis membrane. And through a four-stage recycling technology, the cyclic utilization rate of the white water in the waste paper papermaking workshop is increased to 97% or above.

The invention discloses a coal gasification black water multi-stage deep treatment device and method, and relates to the technical field of water treatment.The coal gasification black water multi-stage deep treatment device comprises a flash tank, a settling tank, a mixing and clarifying tank, a partition plate, an overflow opening, a mixing cavity, a clarifying and stirring mechanism, a pressing plate, a water inlet tank and a fixed bin, the two sides of the fixed bin are open, and an adjusting plate is clamped in the fixed bin and horizontally and freely slides in the fixed bin; a water storage space is defined by the adjusting plate, the fixed bin and the partition plate. According to the device, the pressing plate moves downwards, so that the pressing plate extrudes an extraction liquid in the mixing cavity, part of the extraction liquid enters the water storage space from the water inlet groove under the action of pressure, then along with downward movement of the pressing plate, the liquid level of the extraction liquid in the water storage space rises, and the extraction liquid flows into the clarifying cavity from the overflow port; after entering the water storage space, the extraction liquid loses the acting force of the stirring mechanism, so that a relatively large turbulence phenomenon is avoided, the extraction liquid can flow into the clarification cavity at a relatively low flow speed, and the clarification efficiency is prevented from being influenced.

The invention belongs to the technical field of thermal power plant circulating water and sewage pretreatment, and relates to a circulating water lime softening system and method based on seed crystal circulation and intelligent control. Comprising a raw water tank, a lime softening tank, a flocculation reaction tank, a clarification tank and a softened water tank, through the synergistic effect of the seed crystal reflux circulation and the intelligent control technology, the softening efficiency is remarkably improved, the medicament consumption and the sludge output are reduced, and the resource utilization of the calcium carbonate byproduct is realized; according to the system, through organic connection of the raw water tank, the lime softening tank, the flocculation reaction tank, the clarification tank and the softening water tank, accurate adding of lime, sodium carbonate, seed crystal and a flocculating agent is combined, and whole-process water quality on-line monitoring and intelligent regulation and control are matched, so that efficient softening treatment of circulating water blow-down water is realized, stable and up-to-standard effluent quality is ensured, and the quality of discharged water is improved. Meanwhile, the operation cost and the treatment effect are optimized.

This invention concerns an installation and method for treating a first stream (S1) of a colloidal suspension of water and ultra-fine particles and a second stream (S2) of heavy oil, both of which streams are derived from treating a flow of heavy crude oil or bitumen, to convert them into separate streams of clean water, clean oil, decanted solids and usable gases. The first stream (S1) is treated in a series of electro-kinetic reactors (20) operating by electrolysis / electro flocculation and water tank clarifiers (30) connected in parallel. The second stream (S2) is treated in ultrasound cyclone chambers (40). Released gas is collected from the tops of the electro-kinetic reactors (20) and the ultrasound cyclone chambers (40). Decanted solids are collected from the bottoms of the electro-kinetic reactors (20) and the ultrasound cyclone chambers (40). Clean water is collected from the water tank clarifiers (30). Clean oil is collected from the ultrasound cyclone chambers (40).

The present invention proposes a water treatment system that couples anoxic biofilters with artificial wetlands, belonging to the field of water treatment technology. The key technical points are: sewage is collected through a pipe network and flows into a water collection pool, and then enters a regulating / anoxic pool through a lift pump. The solid carbon source in the pool provides a carrier for microorganisms while achieving slow-release supplementation of the carbon source, thereby strengthening the denitrification reaction to remove total nitrogen. The system is then transported to a biofilter and a contact oxidation pool by a lift pump, and COD and ammonia nitrogen are removed through carbon oxidation and nitrification reactions. The effluent enters a high-efficiency clarifier, and after most of the total phosphorus and SS are removed through chemical phosphorus removal and coagulation and sedimentation, the overflow enters an artificial wetland, and is subjected to a comprehensive treatment of plant-microorganism-filler to deeply purify the pollutants and meet the discharge standards. Using the water treatment method of the present application, the effluent water quality can be improved to the Class B emission standard.

The utility model relates to the technical field of power plant comprehensive wastewater treatment, in particular to a power plant comprehensive wastewater deep circulation treatment water-saving system which comprises a wastewater buffer pool. A chemical crystallization granulation fluidized bed, a steel clarifier, a clean water tank, a high-efficiency fiber filter, an ultrafiltration device, an ultrafiltration water production tank, a reverse osmosis device and a reuse water tank are in fluid communication with a water outlet of the wastewater buffer tank in the water flow direction, the reverse osmosis device is provided with a first water discharge pipe and a second water production pipe, and the first water discharge pipe is connected with a desulfurization system; the second water producing pipe is connected with a recycling water tank, and the recycling water tank is connected with a recycling system through a pipeline. A softening and clarifying pretreatment mode is adopted, so that the removal rate of SS (suspended solids) reaches up to 80-90%, and the SS content of effluent is kept below 10mg / L; the removal rate of COD (chemical oxygen demand) can reach 20-30%; the hardness removal rate reaches up to 80%-90%, and the effluent hardness is kept below 20 mg / L; in addition, calcium fluoride is generated while hardness is removed, and most fluorine ions can be removed.

The invention discloses a treatment system for power plant wastewater recovery, which comprises a softening pretreatment assembly for removing impurities in wastewater, a clarification tank for treating suspended matters, a clean water tank for storing clean water, a membrane concentration assembly communicated with the softening pretreatment assembly, and a water supply assembly communicated with the membrane concentration assembly. The device is used for further improving the filtering effect on the wastewater and comprises a multi-medium filter for filtering impurities and a reverse osmosis device for desalting the wastewater. The power plant wastewater treatment system has the beneficial effects that some solid impurities in power plant wastewater can be filtered through the softening pretreatment assembly, the crystallization phenomenon in an existing wastewater treatment system is greatly reduced, the treated wastewater can be further filtered through the membrane concentration assembly, salt in the wastewater can be concentrated and separated, the discharge amount of strong brine is reduced, and the treatment cost is reduced. In addition, reverse osmosis produced water and reverse osmosis concentrated water produced by the reverse osmosis device can be respectively supplemented for boiler water and desulfurization water, so that the recycling rate of wastewater is increased.

The invention discloses a lime coagulation treatment effect real-time monitoring and regulation system and method based on multi-parameter fusion, and belongs to the technical field of water treatment. The system disclosed by the invention comprises a data acquisition and analysis module, a data processing and evaluation module, an intelligent regulation and control module, an execution mechanism and a coagulation clarifier, the acquisition and analysis module is respectively connected with a water inlet / outlet of the coagulation clarifier and the reaction area; the acquisition and analysis module is electrically connected with the data processing and evaluation module, the intelligent regulation and control module and the execution mechanism in sequence; and the executing mechanism is arranged in the coagulation clarifier. According to the system disclosed by the invention, all the modules and parts have a synergistic effect, so that the technical problem that an existing monitoring system lacks multi-parameter coupling analysis and intelligent decision-making capabilities is solved.

The invention is a flow-through flow-through filter that can separate raw water and / or sewage to filtered stream, fine particle stream and grit stream in one hydraulic device. For raw lake and / or canal water intake application, the flow-through filter is placed inside a chamber box that is mounted on a water intake rack structure or diversion canal. The invention filters debris and organisms to prevent biomes formation in pumps and waterlines that delivers raw water to a water treatment plant. The flow-through filter withdraws flows from a raw water body without taking defined sediment, floating debris and target aquatic biomes and eliminates the need of discharging remnants to a sewage system.For wastewater treatment, the flow-through filter is installed over a wet well after the headwork rack and may replace the grit removal, primary clarifier, and the fine screening. The flow-through filter requires a much smaller footprint of the area and / or enclosed building that requires smaller odor control. There is a substantial cost saving of using one device and replaces grit removal, primary basin, and fine screening.

The invention discloses a method and a system for simply and efficiently treating fluorine-containing acidic wastewater in polycrystalline silicon production, and belongs to the technical field of wastewater treatment. The system comprises a wastewater treatment system and a sludge treatment system, the wastewater treatment system comprises a pretreatment stage, a neutralization treatment stage and a deep treatment stage, fluorine-containing acidic wastewater enters a neutralization reaction tank for precipitation after being subjected to physical filtration and homogenization treatment in an adjusting tank, and flocculation treatment is performed by adopting a clarification tank and an air flotation machine; sludge generated in the fluorine-containing acidic wastewater treatment process is subjected to dehydration treatment through a sludge dehydrator. According to the invention, a combined technological process of chemical precipitation, the inclined tube clarifier and the air flotation purifier is utilized, so that the fluorine-containing acidic wastewater is treated in a standard reaching manner, the cyclic utilization of the wastewater is realized, and the method has the advantages of remarkable reduction and resource utilization; the whole technical scheme provided by the invention is simple, the existing traditional process flow is shortened, the efficiency is improved, the treated sewage can reach the discharge standard, and the method is green and economical.

The utility model belongs to the technical field of energy utilization, and relates to a water-saving desulfurization wastewater treatment device which comprises a wet desulfurization system, a double-alkali softening device, a clarification tank, an ultrafiltration device, a primary nanofiltration device, a secondary nanofiltration device, a reverse osmosis device and a crystallization device. The desulfurization wastewater is fed into a double-alkali softening device, is subjected to acid-alkali neutralization by sodium hydroxide and heavy metal removal, and is fed into a clarification tank after calcium and magnesium ions are removed by sodium carbonate; wastewater in the clarification tank is filtered by the filtering device and then fed into the primary nanofiltration device, concentrated water discharged by the primary nanofiltration device is mixed with part of water produced by the reverse osmosis device and then fed into the secondary nanofiltration device, and water produced by the primary nanofiltration device and the secondary nanofiltration device is fed into the reverse osmosis device. The water produced by the reverse osmosis device is mixed with the concentrated water discharged by the first-stage nanofiltration device, the residual water and the concentrated water discharged by the second-stage nanofiltration device are sent to a wet desulphurization system for recycling, the concentrated water discharged by the reverse osmosis device is sent to a crystallization device, and after crystallization and evaporation, the main component is collected as a sodium chloride solid.

The present invention relates to a preparation method and a preparation device for ultra-thin rolled glass for solar cells. Compared with the existing rolled glass preparation technology, the present invention targets the particularity of ultra-thin rolled glass for solar cells, conducts technical innovations in multiple processes, and forms a brand-new ultra-thin rolled glass preparation technology. Specifically, it includes: in the glass component selection and batching process, optimizing the design of glass components to improve the impact resistance of ultra-thin rolled glass; in the melting and clarification process, improving the clarifier formula and setting the melting furnace combustion atmosphere to an oxidizing atmosphere to achieve efficient melting and clarification of the glass liquid; in the forming process, adopting a multi-stage rolling forming process to achieve the forming of ultra-thin glass ribbons with small thickness differences; in the annealing process, adopting an annealing process that finely controls the temperature of each annealing area and accurately controls the cooling rate of the glass ribbon to achieve precise annealing of the ultra-thin rolled glass ribbon. The ultra-thin rolled glass produced by the present invention has the advantages of small thickness difference, high impact resistance, and high transmittance.

The utility model provides a water flow decelerating and liquid medicine mixing device and a high-efficiency clarifier with the same, the water flow decelerating and liquid medicine mixing device comprises a cylinder body, the top surface of the cylinder body is provided with a first water inlet pipe and two first medicine adding pipes, and a plurality of first water outlets are uniformly distributed around the axis of the cylinder body at the position close to the lower end of the cylinder body on the side wall of the cylinder body; a flow guide partition plate is arranged in the middle in the barrel, a water drainage hole is formed in the center of the flow guide partition plate, a speed reducing and mixing base is arranged at the bottom in the barrel, a mixing groove right facing the water drainage hole is formed in the center of the top face of the speed reducing and mixing base, a second overflow ring groove is formed in the outer edge of the bottom of the speed reducing and mixing base, and the outer wall of the second overflow ring groove coincides with the inner wall of the barrel.

Belonging to the technical field of chemical processing, the invention discloses a desulfurization and thallium removal process purification system for thallium-containing flue gas, which comprises an absorption tower system, a flue gas condensation cooling system, a thallium removal system, and a gypsum generation and dehydration system. The absorption tower system consists of a booster fan, an absorption tower and a slurry circulating pump; the flue gas condensing and cooling system consists of a washing tower, a circulating water pump, a heat exchanger and a wet power supply; the thallium removal system consists of an absorption tower solution discharge pump, a thallium removal solution buffer tank, a clarifier I, a thallium-containing sludge conveying pump, a plate-and-frame filter press I and a condensate water conveying pump; and the gypsum generating and dehydrating system consists of a calcium hydroxide dosing tank, a sodium carbonate dosing tank, a clarifier II, a clear water tank, a sludge conveying pump, a plate-and-frame filter press II, a filtrate water pump and a clear water pump. According to the desulfurization and thallium-removal process purification system for the thallium-containing flue gas, the technological process is mature in technology, and operation is safe and reliable; the cost is low, and the cost performance is high.

The utility model belongs to the technical field of sewage treatment biological denitrification equipment, and particularly relates to an up-flow type sewage internal carbon source conversion and storage reaction device which comprises a reaction device body, a baffling partition plate is arranged in the reaction device body, a water distribution tank is arranged between the baffling partition plate and the reaction device body, and a water inlet pipe is communicated with the water distribution tank. The water distribution tank and the water inlet pipe are arranged at the top of the reaction device body; a water outlet is formed in the water distribution tank; a bottom reflecting baffle is arranged at the bottom of the reaction device body; a sludge discharge pipe is arranged on the reaction device body at one end of the bottom reflecting baffle; an integrated clarifier with a closed bottom is arranged on the other side of the baffling partition plate, a bottom sludge collector is arranged in the integrated clarifier and communicated with a sludge pipe, and a drainage pipe is arranged on the side wall close to the upper part of the integrated clarifier; a sludge distributor is arranged on the inner side wall of the baffling partition plate, a sludge inlet pipe and a sludge outlet pipe are arranged on the sludge distributor, and a plurality of overflowing holes are formed in the sludge distributor and the bottom reflecting baffle plate. The sewage treatment cost is effectively reduced, and the treatment process is optimized.

The invention relates to a backwash device for a coal-containing wastewater centrifugal clarifier and a control method thereof, the device comprises a reuse water tank, the reuse water tank is connected with a centrifugal clarifier backwash water pump, the centrifugal clarifier backwash water pump is connected with a centrifugal clarifier backwash water pump electric water inlet valve, and the centrifugal clarifier backwash water pump electric water inlet valve is connected with the reuse water tank. One end of a centrifugal clarifier backwashing water pump electric water inlet valve is connected with a backwashing channel, one end of the backwashing channel is arranged in a centrifugal clarifier, the centrifugal clarifier is connected with an electronic flocculator through a centrifugal clarifier electric water inlet valve, and the centrifugal clarifier is connected with a middle water pool through a centrifugal clarifier electric water outlet valve. And a turbidity meter is arranged at the outlet of the middle water tank. Compared with the prior art, the centrifugal clarifier has the advantages that impurities attached to the inner wall of the centrifugal clarifier and filler are removed, and the treatment effect of the centrifugal clarifier is improved.

A system for preventing ammonium sulfate blockage in caprolactam production comprises an elutriator and an amide oil storage tank, the elutriator is communicated with the upper portion of the amide oil storage tank through a second delivery pump, and the amide oil storage tank is communicated with a benzene extraction tower through a middle lower discharge pipeline connected with a fourth delivery pump. The lower part of the amide oil storage tank is communicated with the crystallizer through a third delivery pump, and the treatment system is characterized in that the treatment system comprises a first benzene injection pipe arranged between the elutriator and the second delivery pump and / or a second benzene injection pipe arranged between the second delivery pump and the amide oil storage tank; and benzene enters the second delivery pump through the first benzene injection pipe and / or benzene enters the amide oil storage tank through the second injection pipe. The utility model has the advantage that the problem that the pipeline is blocked due to ammonium sulfate crystallization precipitation when the amide oil is extracted can be solved.

The present invention relates generally to systems and methods for assessing submerged structures and cleaning of submerged structures of waste collection systems such as, but not limited to, sewers, sumps, wet wells, collection tanks, digesters, clarifiers, classifiers, and the like. The systems and methods may be used to determine one or more chemical and / or physical properties in a water storage facility vessel or a water treatment facility vessel and then use such one or more chemical and / or physical properties to determine where and how much, if any, sand or other sediment may need to be removed and to assist in its removal. In an embodiment, all or part of the systems and / or methods may be carried out remotely.