2163results about "Settling tanks feed/discharge" patented technology

The present invention relates to the field of wastewater treatment technology, and more particularly to a process and apparatus for separating and recovering chromium and lead ions from wastewater. The apparatus comprises a flotation sedimentation tank equipped with an inlet pipe and a drain pipe, a feeding mechanism, and a dispersion mechanism. The flotation sedimentation tank is used to receive the wastewater to be treated. The feeding mechanism is disposed within the flotation sedimentation tank and is used to inject a reactant, a collector, and aeration gas into the flotation sedimentation tank. The dispersion mechanism is connected to the feeding mechanism and is used to disperse the reactant, collector, and aeration gas within the flotation sedimentation tank so that they come into full contact with the wastewater. The process comprises: introducing a reactant into the wastewater to cause the chromium ions and lead ions to react, respectively, to produce a chromium precipitate and a lead precipitate; introducing a collector into the wastewater to cause the lead precipitate to combine with the collector to impart hydrophobicity; aerating the wastewater to cause the lead precipitate to form froth; and separating and recovering the froth from the chromium precipitate. The present invention can achieve simultaneous separation and recovery of chromium and lead ions from wastewater, achieving high separation and recovery rates.

The invention discloses sewage treatment and purification equipment, which relates to the technical field of sewage treatment and comprises a treatment tank and a purification mechanism, the purification mechanism comprises a mixing structure, a filtering structure, a purification structure, a blow-off pipe and a plugging structure; the filtering seat and the cleaning structure are matched to filter impurities in the sewage, and the purifying structure can purify and filter the sewage added with a purifying agent; a filtering structure, a fan-shaped moving plate, a connecting ring, a limiting ring, a limiting rod, a first rack, a transmission gear and a second rack are matched to align a blocking plate with the filtering structure and block a filtering seat, so that a top tank and a bottom tank are divided into two areas, impurity precipitates can be discharged from the top tank, the filtering structure is prevented from being blocked by impurities, and the service life of the filtering structure is prolonged. The flocculation treatment and purification efficiency of the purification structure is improved, a worker does not need to close the treatment tank for disassembly and maintenance, the labor intensity of the worker is reduced, and the use effect of the sewage treatment and purification equipment is improved.

The utility model discloses a leachate discharge disposal system which comprises a leachate conveying system and a liquid storage pool communicated with the output end of the leachate conveying system, and the leachate conveying system comprises a conveying device, an impurity smashing device and a filtering device; the water outlet end of the conveying system is communicated with the liquid storage tank, and a deslagging mechanism and a dredging mechanism are arranged in the liquid storage tank. The conveying device is arranged to dredge the cylinder body in time, the impurity smashing device is used for cutting and refining waste residues, and the filtering device is arranged to prevent large impurities from forming clamping stagnation; the slag discharging mechanism is arranged to periodically and orderly discharge sediments, the slag discharging efficiency is improved, the dredging device is arranged to discharge floating objects, meanwhile, blockage caused by accumulation of the floating objects can be dynamically prevented, and use is convenient and fast.

A thickener apparatus with automatic flocculation, sedimentation, and flow-guide functions, comprising: a thickener body (1), wherein a raw material inlet (3) and a flocculant inlet (4) are communicatively arranged in the top of the thickener body (1); a first rotating shaft (7), which is rotatably arranged in the thickener body (1), wherein a flow-guide plate (8) is arranged on the first rotating shaft (7), and a stirring rod (10) is arranged on the first rotating shaft (7); and a crushing cylinder (5), which is arranged in the thickener body (1), wherein a crushing assembly is arranged in the crushing cylinder (5).

The invention relates to the technical field of activated carbon adsorption towers, in particular to a self-cleaning circulating type industrial organic waste gas activated carbon adsorption tower which comprises an adsorption tower body, an adsorption mechanism is arranged on the outer side of the adsorption tower body, and a recycling mechanism is arranged on the front side of the adsorption mechanism. The adsorption mechanism comprises a vibration assembly, a sweeping assembly, a leading-in assembly, a conveying assembly and a flow dividing assembly, the vibration assembly is arranged on the inner side of the adsorption tower body, the sweeping assembly is arranged on the inner side of the vibration assembly, the leading-in assembly is arranged on the inner side of the vibration assembly, and the conveying assembly is arranged on the top of the vibration assembly; the flow dividing assembly is arranged on the front side of the conveying assembly. The invention provides a self-cleaning circulating type industrial organic waste gas activated carbon adsorption tower which is provided with a structure for circularly cleaning and recycling residual impurities, so that the residual impurities on the surface of an activated carbon plate can be cleaned and recycled, and the long-term use stability of the activated carbon plate is improved.

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage settling pond which comprises a pond body, electric control telescopic rods are fixed to the two sides of the pond body correspondingly, a mounting frame is fixed to output shafts of the electric control telescopic rods, electric sliding rails are mounted on the front side and the rear side of the mounting frame correspondingly, and sliding seats are slidably arranged in the two electric sliding rails correspondingly; strip-shaped shells are fixed to the lower sides of the two sliding seats correspondingly, circular shells are rotationally mounted on the inner sides of the lower ends of the two strip-shaped shells correspondingly, a plurality of fishing plates are arranged between the two circular shells, and rotating assemblies are arranged between the circular shells and the mounting frame. Through the synergistic effect of the electric control telescopic rod and the electric sliding rail, automatic lifting and horizontal movement of the salvage plate are achieved, dross on the surface of sewage can be continuously and comprehensively cleaned away, the dross cannot fall back into the sewage again after being salvaged through the design of the arc-shaped collecting shell, and through the combination of the gear, the rack and the push rod, the dross can be effectively removed. And automatic overturning and dumping of the arc-shaped collecting shell are achieved, and the automation degree is further improved.

The invention relates to the technical field of solid-liquid separation in the mineral separation industry, in particular to a dense overflow solid material recycling device and process, the dense overflow solid material recycling device comprises a plurality of sedimentation tanks, height differences exist among the sedimentation tanks, and a sediment recycling mechanism is arranged in each sedimentation tank and used for collecting and conveying solid materials after sediment; a dissociation mechanism is also arranged in the sedimentation tank and is used for dissociating solid materials; and a separation mechanism is arranged on the extraction mechanism, and solid materials can be conveyed and subjected to solid-liquid separation through vibration. By arranging the sedimentation tank, the sediment recovery mechanism, the extraction mechanism and the separation mechanism, continuous operation can be achieved, and the manual cleaning cost is reduced; the extraction mechanism can realize low-energy-consumption conveying and primary solid-liquid separation, so that subsequent treatment of solid materials is facilitated; and the solid and the liquid can be further separated through the separation mechanism, and the solid can be conveniently recycled in the later period.

The utility model relates to the technical field of hydrochloric acid desorption, in particular to a hydrochloric acid desorption device which comprises a hydrochloric acid desorption tower, and the top of the hydrochloric acid desorption tower is sequentially communicated with a primary condensing device, a secondary condensing device, a freezing device, a demister and a hydrogen chloride buffer tank; one side wall of the hydrochloric acid desorption tower is communicated with a hydrochloric acid storage tank; the side wall of the hydrochloric acid desorption tower is also communicated with a calcium chloride solution storage tank; a bottom liquid outlet of the hydrochloric acid desorption tower is communicated with a first inlet of the thermosyphon reboiler, the thermosyphon reboiler is provided with a first outlet and a second outlet, the first outlet is communicated with a liquid inlet of the hydrochloric acid desorption tower, and the second outlet is sequentially communicated with the multi-effect evaporation device and the flash separation tank; and the flash separation tank is respectively communicated with a calcium chloride solution storage tank and a second inlet of the thermosyphon type reboiler. According to the utility model, the equipment investment is reduced, the concentration efficiency of the calcium chloride solution is improved, the energy consumption is reduced, and calcium chloride is prevented from flowing back into the desorption tower to cause blockage.

The invention relates to the technical field of water multi-stage treatment, in particular to a water conservancy project filtering device and a filtering technology thereof.The water conservancy project filtering device comprises a treatment box, the top end of the treatment box is fixedly connected with a filtering shell, the top end of the filtering shell is fixedly connected with a water inlet pipe, and two first filtering nets are arranged in the filtering shell; the bottom ends of the first filter screens are fixedly connected with a first connecting shaft, the first connecting shaft is rotatably connected with the filter shell, the filter shell is provided with an angle control structure used for changing the angle of the two first filter screens, and the filter shell is provided with a cleaning and collecting unit used for cleaning the first filter screens; the bottom end of the treatment box is fixedly connected with an impurity outlet pipe and a water outlet pipe; valves are arranged on the impurity outlet pipe and the water outlet pipe; according to the technical scheme, the impurities filtered out by the first filter screen can be cleaned without dismantling the first filter screen, the long-term use cost can be remarkably reduced and the user experience can be improved by optimizing the easy-to-clean performance, and particularly, the effect is more prominent in the frequent use process.

The utility model relates to a coke breeze treatment device for wet quenching of a coke oven, which comprises a clean water tank and a sedimentation tank, the clean water tank and the sedimentation tank are sequentially connected, two sides of the clean water tank and the sedimentation tank are provided with ditches, and the ditches are used for leading quenching water sprayed in a quenching tower back to the coke breeze sedimentation tank to form a closed loop, so as to complete the recycling of the quenching water. Concrete partition walls are arranged between the clean water tank and the sedimentation tank, between the ditches and the clean water tank and between the ditches and the sedimentation tank, openings are formed in the concrete partition walls, and water gates are arranged at the openings and connected with the control unit. The coke powder grabbing device has the advantages that the grabbing device walks on the track and grabs the coke powder of the settling pond and the clean water pond, the coke powder does not need to be cleaned manually, the operation environment of operators is improved, the labor intensity of the operators is reduced, the post of the coke powder grab bucket operator is canceled, manpower is saved, the enterprise cost is reduced, and the working efficiency is improved. Operators are prevented from being in contact with toxic and harmful substances, and the operation environment of the operators is improved.

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 utility model relates to the technical field of sewage treatment, and discloses a peripheral transmission mud sucking and scraping machine for sewage treatment, which comprises a mud scraping assembly and a mud sucking assembly, the mud scraping assembly comprises a fixed bottom plate, the fixed bottom plate is fixedly connected with a supporting plate, the supporting plate is fixedly connected with a fixed plate, the fixed plate is fixedly connected with a driving motor, and the driving motor is fixedly connected with the mud sucking assembly. The output end of the driving motor is fixedly connected with a first bevel gear, the lower side of the first bevel gear is connected with a second bevel gear, the second bevel gear is fixedly connected with a rotating cylinder, the rotating cylinder is fixedly connected with a first connecting plate, meanwhile, the first connecting plate is fixedly connected with a side scraping plate, and the rotating cylinder is fixedly connected with a second connecting plate; the second connecting plate is fixedly connected with a bottom scraping plate, and meanwhile, the fixed bottom plate is fixedly connected with a supporting column, so that the side scraping plates, the bottom scraping plate and the second connecting plate are used for scraping sludge on the inner wall and the bottom of the sewage bucket, and the cleaning effect on the sludge in the sedimentation tank is greatly improved through all-directional scraping.

This invention discloses an air-lift cyclone sand separator, comprising a sedimentation tank and an air-lift device. The sedimentation tank has a sand-collecting hopper at its lower end, and a hollow shaft extending vertically is placed inside the sedimentation tank. A paddle is fixed to the lower end of the hollow shaft at the upper opening of the sand-collecting hopper. A driving device is fixed to the upper end of the sedimentation tank and connected to the upper end of the hollow shaft. The air-lift device includes an air-lift tank, an air-lift pipe, an air-purge pipe, and a sand-discharge pipe. The air-lift tank is housed within and communicates with the sand-collecting hopper. The air-lift pipe passes through the hollow shaft and communicates with the air-lift tank. The air-purge pipe passes through the hollow shaft and communicates with the sand-collecting hopper. The sand-discharge pipe passes through the hollow shaft and communicates with the air-lift tank. The paddle accelerates the rotation speed of the water flow in the sedimentation tank, allowing the sand to settle better. The settled sand is concentrated in the sand-discharge hopper. The air-lift pipe drives the water flow through the air-lift tank and into the sand-discharge pipe. The air-purge pipe disperses the sand in the sand-collecting hopper, allowing the dispersed sand to enter the sand-discharge pipe with the water flow, resulting in good sand removal efficiency.

The utility model belongs to the technical field of sludge treatment, and particularly relates to a sedimentation tank sludge discharge structure which comprises a treatment tank, water outlet pipes are fixedly mounted on the left side and the right side, close to the upper end, of the treatment tank, a scraper is slidably arranged in the treatment tank and close to the lower end, the lower end of the scraper is in contact with the bottom of the treatment tank, and a stirring groove is formed in the right side of the bottom of the treatment tank. A plurality of stirring rods are arranged in the stirring tank, a supporting plate is fixedly arranged at the lower end of the right side of the treatment tank, and a sludge pumping pump used for pumping sludge is fixedly arranged on the supporting plate. And then the scattered sludge enters the extraction pipe through the extraction cover by virtue of the sludge pump and then is discharged through the sludge discharge pipe, and the device can prevent the situation that the accumulated sludge is relatively large in volume and is difficult to extract by virtue of the sludge pump.

The invention relates to the technical field of heavy metal wastewater treatment, in particular to a heavy metal wastewater resourceful treatment device based on an electrochemical reduction technology. The heavy metal wastewater resourceful treatment device based on the electrochemical reduction technology comprises an electrolytic bath, a control module, an electrode system, an electrode plate, a water outlet pipe and a water inlet pipe, the control module is installed on the front side of the electrolytic bath, the electrode system is installed on the right side of the top of the electrolytic bath, and the electrode system is electrically connected with the control module. According to the device, a uniform direct-current electric field is formed through the array type alternating electrodes, mass transfer is enhanced by combining reciprocating swing of the electrode plates, heavy metal ions (such as Cu < + >, Cr < 6 + > and Ni < + >) are efficiently reduced into elementary substances or low-valence precipitates at the cathode, and a bubble-particle complex is formed through the electric floating effect to be rapidly separated. Meanwhile, the compound motion of swinging and autorotation of the multi-ring rotating shaft sleeve further crushes bubbles and disperses flocs, so that the capture rate and removal rate of heavy metals are increased.

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.

This invention discloses a thickener with a sealing mechanism, relating to the field of thickener technology. The invention includes a thickener body, a rotating shaft, a rake frame, and a movable box. The mixing mechanism includes a mixing rod with a spiral blade fixed to it, and a sealing mechanism also fixed to the mixing rod. A shifting mechanism is slidably disposed on the outer circumference of the rotating shaft. The rotating shaft drives the movable box to rotate, thereby causing the friction wheel to drive the mixing rod and spiral blade to rotate and mix the slurry, ensuring thorough mixing of the flocculant and slurry. The rotating shaft drives the dispersion disc to rotate, which can disperse the slurry to various positions within the thickener body, ensuring the flocculant is also evenly distributed within the thickener body. The shifting mechanism causes the dispersion disc to rise, reducing the opening of the discharge tank and thus decreasing the discharge speed. The movable box moves downwards, making the mixing rod parallel to the bottom of the thickener body. At this time, the rotating spiral blade stirs up the mud layer at the bottom of the thickener body, reducing the resistance on the rake frame and preventing deformation or jamming of the rake frame.

The invention relates to the technical field of papermaking wastewater treatment, in particular to an integrated impurity recycling and settling device for papermaking wastewater, which comprises a settling pond and a feeding part on the inner side of the settling pond, a cabin cover is arranged on the top of the settling pond, a support is fixedly connected to the inner side of the settling pond, and one side, close to the feeding part, of the support is fixedly connected with the feeding part. An inclined plate is welded to the outer side of the support. The invention provides an integrated impurity recovery and precipitation device for papermaking wastewater, which has a dynamic design of driving an interception net through a shaft washer, continuously shakes off fiber impurities, is combined with a multi-layer filter net structure, avoids filter net blockage, improves the interception efficiency, reduces the winding or blockage risk of subsequent equipment, can make a medicament circumferentially diffused and fully stirred, and improves the quality of the product. According to the present invention, the uniform mixing of the agent and the wastewater is ensured, the disturbance of the precipitation region is avoided, the layering and non-uniform mixing problems of the traditional static feeding are overcome, the uniform water distribution of the precipitation region is achieved through the cylindrical inclined plate, and the impurity treatment, the agent mixing, the precipitation efficiency and other aspects are improved.

The utility model relates to the technical field of sewage treatment equipment, in particular to an electrolytic biological filter system for rapid treatment of overflow pollution, which comprises a bioelectrochemical system and a biological aerated filter system, the bioelectrochemical system comprises a tank body I, a biological anode and a biological cathode are arranged in the tank body I, and the biological anode and the biological cathode are arranged in the tank body II. The biological anode and the biological cathode are connected to a power supply, the biological aerated filter system comprises a tank body II, sewage treated by the tank body I enters the tank body II, an aeration device, a filtering device and a clear water outlet device are arranged in the tank body II, and the biological electrochemical system is coupled with the biological aerated filter through the aeration device, the filtering device and the clear water outlet device. The electrolytic biological filter system for rapidly treating overflow pollution is formed, the rapid electron transfer characteristic of a bioelectrochemical system is fully utilized, the denitrification rate of the biological aerated filter is increased, the treatment time can be greatly shortened under the same denitrification requirement, and the effect of rapidly treating overflow pollution in emergency is achieved.

The invention relates to the technical field of sewage treatment, in particular to an assembly type stacked hydraulic grit chamber for a sewage treatment plant. The assembly type stacked disc hydraulic grit chamber for the sewage treatment plant comprises a stacked disc module device, an unpowered water distribution device and a backwashing and fluidizing device, the stacked disc module device comprises a plurality of stacked discs which are sequentially arranged at intervals in the vertical direction, a water outlet channel is formed between every two adjacent stacked discs, and a water outlet is formed in the inner side of each stacked disc. According to the assembly type stacked disc hydraulic grit chamber for the sewage treatment plant, water flow is sprayed to the inner surface of the stacked disc through the cleaning disc assembly so as to wash the inner surface of the stacked disc, the automatic backwashing function is achieved, the problem of sand accumulation of the stacked disc is effectively solved, and sand hardening is prevented. Through the automatic backwashing function, the manual cleaning frequency and strength are greatly reduced, the manual labor intensity and potential safety hazards are reduced, the stacked trays are prevented from being blocked, and the service life of the stacked trays is prolonged.

The utility model provides a methanol-to-olefin reaction gas washing tower system, belongs to the technical field of methanol-to-olefin, and solves the problems of poor effect, high cost, poor operation effect, high investment cost, difficulty in operation and high labor intensity when a reagent is added to relieve blockage in the prior art. The device comprises a washing tower, the bottom of the washing tower is connected with a sewage pool, a pipeline at the bottom of the washing tower is connected with a deoxygenated water inlet pipe a, the deoxygenated water inlet pipe a is provided with a water pressure sensor a and an electromagnetic valve a, and the pipeline at the bottom of the washing tower is provided with an electromagnetic valve b and a flow sensor a. The method comprises the following steps: introducing a catalyst settled at the bottom of a washing tower into a sewage pool so as to relieve the problem of system blockage, when the catalyst blocks a pipeline inlet at the bottom of the tower, closing an electromagnetic valve b, cutting off a pipeline of the sewage pool, opening an electromagnetic valve a on a deoxygenated water inlet pipe a, and backflushing the pipeline inlet at the bottom of the tower by deoxygenated water, the catalyst can continuously flow into the sewage pool, the operation is simple, and the investment cost is low.

The invention relates to the technical field of wastewater treatment equipment, in particular to an automatic separation process and device for heavy metal sediment in wastewater treatment.The device comprises a sediment separation pond used for containing wastewater, and a sediment collection barrel used for containing sediment in the wastewater is arranged in the sediment separation pond; an opening is formed in the upper portion of the sediment collecting barrel, a push plate is arranged above the opening, the sediment collecting barrel is provided with a barrel side wall and a barrel bottom plate which can be separated, and the barrel side wall and the push plate are connected with a separation driving mechanism. The separation driving mechanism can drive the barrel side wall and the push plate to get close to each other so as to push wastewater and sediments to be discharged along a gap between the barrel side wall and the barrel bottom plate, so that the sediments fall into different areas to be collected. As the shapes of parabolas generated by the sediments with different densities are different, the horizontal distances between the sediments with different densities and the sediment collecting barrel are different after the sediments with different densities fall into the bottom, so that different heavy metal sediments can be separated.

The invention provides a grit chamber, and belongs to the technical field of sewage treatment.The grit chamber comprises a chamber body and at least one grit setting assembly, the grit setting assembly is arranged in the middle of the chamber body, a plurality of grit setting channels are formed in the grit setting assembly, and the grit setting channels are obliquely arranged. The settling area is divided into multiple layers of shallow layer units by the multiple sand settling channels in the sand settling assembly, the effective settling area is greatly increased, the particle settling distance is shortened, and therefore the settling speed is increased, sand can be removed only by settling for a very short vertical distance, the fine sand removing capacity of the sand settling tank is improved, and the sand settling efficiency is improved. And the particle size of the removed object in the grit chamber is reduced to be less than 200 mu m.

The invention relates to the field of sewage treatment, in particular to aquaculture sewage treatment equipment. Comprising a machine frame, a fixed frame is arranged on the machine frame, a precipitation frame and a hollow frame are installed in the machine frame, a feeding mechanism used for feeding sewage into the fixed frame is arranged on the machine frame, a first filter plate and a spiral feeder are arranged in the fixed frame, and a transfer mechanism is arranged on the fixed frame. By arranging the extrusion device composed of the filter cylinder, the pressing block and the spring, excrement and impurities which are filtered and separated out are dehydrated, the water content of the excrement and the impurities is remarkably reduced, the solid waste volume is reduced, subsequent transportation and resource utilization are facilitated, and the economic and environment-friendly benefits are improved; a second filter plate driven by a lead screw motor and a scraping plate controlled by an electric sliding rail are arranged in the sedimentation frame, sediment can be automatically lifted and discharged through a discharging frame, sludge at the bottom of the pool does not need to be manually and regularly cleaned, the labor intensity is reduced, and the dredging efficiency and the continuous operation capacity of the system are improved.

The utility model relates to a bucket type sedimentation tank, including barrel, mud-water separation plate, water inlet pipe, deslagging pipe and water outlet pipe, the mud-water separation plate is bucket-shaped and has a first big mouth end and a first small mouth end, a plurality of mud-water separation plates are arranged in the barrel at intervals along the first direction to form a mud-water separation zone, the first big mouth end is spaced apart from the inner wall surface of the barrel, and the first small mouth end is spaced apart from the inner wall surface of the barrel. The water inlet pipe comprises a connecting section and a water distribution section which are connected, the connecting section is arranged on the barrel, the water distribution section is arranged in the first small opening ends of the mud-water separation plates in a penetrating mode, the water distribution section faces the end of the barrel, and a plurality of water distribution openings are formed in the water distribution section at intervals and located in the mud-water separation area; and at least one water distribution opening is correspondingly formed between every two adjacent mud-water separation plates. According to the bucket type sedimentation tank disclosed by the utility model, mud-water separation is realized by adopting central multi-point water feeding and bucket type sedimentation, so that the uniform water distribution capability is improved, the disturbance to a sedimentation area is reduced, the mud-water separation effect is improved, and the problem that a mud-water separation system in the related technology occupies a large area is solved.

The invention belongs to the technical field of thickeners, and particularly relates to a metal tailing processing dehydration thickener which comprises a sedimentation tank, a discharge pipe connected to the bottom of the sedimentation tank, a bearing plate fixedly mounted on the sedimentation tank, a scraping mechanism arranged on the bearing plate and used for discharging, and a dosing mechanism arranged on the bearing plate and used for dosing. The metal tailing processing dewatering thickener comprises a sedimentation tank, a bearing plate is arranged in the sedimentation tank, storage grooves are symmetrically formed in the bearing plate, electric push rods are fixedly mounted at the tops of the storage grooves, strip-shaped frames are arranged in the storage grooves, and a plurality of discharging barrels are rotatably arranged on the strip-shaped frames. The conveying pump works to extract and convey a flocculating agent stored in the agent storage box, the flocculating agent flows into the discharging barrel through cooperation of the communicating pipe and the rotary joint, and the agent flows into the sedimentation tank through the discharging hole, so that the purpose of adjusting the agent for mixing reaction is achieved, and the mixing efficiency is improved.

The utility model discloses a deep cone paste thickener for a mine tailing filling system, and belongs to the technical field of thickeners. Comprising a shell, and the shell comprises a cylindrical bin, a cone bin located at the bottom of the cylindrical bin and a conical opening portion located at the bottom of the cone bin; a bridge is horizontally erected on the top face of the cylinder bin, a hydraulic motor speed reducer is arranged in the middle of the top face of the bridge, the output end of the hydraulic motor speed reducer is detachably and fixedly connected with a rotating rod, the bottom end of the rotating rod is detachably and fixedly connected with a scraping and collecting mechanism, and the scraping and collecting mechanism is located in the cone bin. And the bottom end of the scraping and collecting mechanism is detachably and fixedly connected with an anti-blocking mechanism. By arranging the anti-blocking mechanism, high-concentration tailing slurry is in a flowing state and is not easy to condense in the conical opening part, meanwhile, the flowing high-concentration tailing slurry is also easy to discharge from the discharge pipe on the periphery of the conical opening part, and the phenomenon that the discharge pipe is blocked is not easy to occur.

The utility model discloses ammonia nitrogen removal equipment for anaerobic fermentation biogas slurry, and belongs to the field of ammonia nitrogen removal and recycling of anaerobic fermentation biogas slurry. All deaminated biogas slurry flows back to the anaerobic fermentation system by virtue of a steam stripping flash evaporation deamination technology, an ammonia absorption technology, an evaporative crystallization technology, a mud-mud heat exchange technology and the like. An adopted flash evaporation deamination tower (3) is internally divided into a plurality of areas, ammonia-containing biogas slurry sequentially flows through the areas and is in countercurrent contact with circulating steam and fresh steam in the areas, ammonia nitrogen in the biogas slurry is removed through steam stripping and flash evaporation, and the generated deaminated biogas slurry completely flows back to an anaerobic fermentation system; ammonia in the ammonia-containing steam is absorbed by dilute sulfuric acid in an ammonia gas absorption tower (9), an ammonium sulfate solution is generated and sent to an evaporative crystallization tank (16), indirect heating and circulating evaporative crystallization are adopted, and solid ammonium sulfate is transported outwards; the mud-mud heat exchanger (2) is suitable for heat exchange between non-Newtonian fluid materials. Biogas slurry is no longer discharged, and fixed asset investment of anaerobic fermentation projects with the same gas production scale is reduced.

A wastewater recycling device, comprising a sedimentation mechanism (1), a sludge discharge mechanism (2) and a cleaning mechanism (3). The sedimentation mechanism (1) comprises a sedimentation tank (101), wherein the sedimentation tank (101) is provided with a first partition plate (103), a second partition plate (106), a third partition plate (107) and a collection plate (102). The sludge discharge mechanism (2) comprises a shielding disk (215) fixed to a sludge discharge pipe (213) by means of a rotary blade (214), rotating fan blades (203) rotationally connected inside a water intake pipe (202), and an associated transmission structure. The cleaning mechanism (3) comprises a piston plate (301) movably connected to the inner wall of the first partition plate (103), a compression spring (303) fixedly connected to the bottom of the piston plate (301), and a discharge chute (304) located on a side wall of the sedimentation tank (101); and further comprises a rotary cleaning rod (308) connected to a first floating block (305), and a scraper (310) connected to a second floating block (309).

The sedimentation system comprises a tank body, a water distribution assembly, a mud-water separation assembly and a scraper assembly, the tank body is provided with a first cavity, a second cavity and a third cavity which are sequentially communicated in the vertical direction, the first cavity is located above the second cavity, and the third cavity is located below the second cavity; the water distribution assembly is arranged in the third cavity and suitable for introducing sewage, the water distribution assembly is provided with a water distribution opening with an upward opening so that the sewage can flow into the tank body through the water distribution opening, the mud-water separation assembly is arranged in the second cavity and located above the water distribution assembly, and the mud-water separation assembly is used for separating sludge in the sewage so that the sewage can be separated into clean water and sludge; a water outlet is formed in the upper end of the mud-water separation assembly, a slag discharging opening is formed in the lower end of the mud-water separation assembly so that sludge can flow into the second cavity through the slag discharging opening, and the scraper assembly is arranged in the first cavity and located on the top of the tank body. The sedimentation system disclosed by the utility model has the advantages of reasonable arrangement, good treatment effect and the like.