1092 results about "Sludge dewatering" patented technology

The invention discloses a sludge treatment automatic monitoring method based on computer vision, and relates to the technical field of sludge treatment automatic monitoring, and the method comprises the following steps: collecting sludge image information through computer vision, extracting an edge integrity index and a brightness distribution index, and constructing a fusion judgment function based on the time sequence change of the two indexes, determining whether a thin water film exists on the sludge surface or not according to an output result of the fusion judgment function; under the condition of determining that a thin water film exists on the sludge surface, acquiring a pixel highlight gradient polymerization rate, a texture missing fluctuation frequency and an image saturation nonlinear deviation value of a corresponding image region, and establishing a specular reflection image feature recognition matrix; by constructing a multi-dimensional image feature recognition and dynamic regulation and control mechanism, the problem of image misjudgment caused by thin water film mirror reflection in the sludge dewatering process is solved, and accurate recognition and automatic closed-loop control of the real water-containing state of the sludge are achieved.

The invention discloses a high-pressure belt conveyor low-cost sludge dewatering technology, and relates to the technical field of sludge dewatering, the technology comprises the following steps: S1, in a pretreatment stage, adding a ferric chloride agent and destroying a sludge colloid structure; s2, in the conditioning stage, lime powder is added to adjust the pH value, and a porous skeleton structure is constructed; s3, adding a polyacrylamide medicament in a flocculation stage to form a compact floc; s4, a high-pressure belt filter press is used for mechanical dehydration in the dehydration stage; s5, recovering the filtrate for redissolving the medicament; s6, performing dynamic linkage optimization of chemical dosing and filter pressing parameters through a dynamic chemical dosing algorithm of the control system; the dosage of chemicals is effectively reduced, the sludge dewatering effect is improved, the sludge dewatering treatment cost is reduced, and the cyclic utilization of resources is realized; the technical problems that an existing sludge dewatering technology is too high in agent cost, low in agent matching and combination reliability and insufficient in technology adaptability are solved.

The invention discloses an environment-friendly sludge dewatering device and a dewatering method thereof, and relates to the technical field of sewage treatment device.The environment-friendly sludge dewatering device comprises a base, and a sludge feeding assembly, a dewatering assembly and a filtrate collecting assembly are arranged on the base; the sludge feeding assembly comprises a material guide groove and a conveying screw rod arranged in the material guide groove, and the output end of the top of the material guide groove faces a feeding opening of the dewatering assembly; the dewatering assembly comprises a barrel, a screen assembly arranged in the barrel and a driving mechanism for driving the screen assembly to rotate centrifugally, the screen assembly comprises an inner screen and an outer screen which are coaxially arranged, the inner screen is movably arranged in the outer screen, and the mesh diameter of the inner screen is larger than that of the outer screen; the filtrate collection assembly is arranged at the bottom of the dehydration assembly and is used for receiving separated liquid. The sludge dewatering device has the effect of improving the sludge dewatering efficiency.

The invention discloses a sludge dewatering system control cabinet convenient to overhaul, and relates to the technical field of control cabinets, the sludge dewatering system control cabinet comprises a cabinet body, a door body and a mounting plate, the door body is hinged to the cabinet body through a hinge, and the mounting plate is arranged on the inner side of the cabinet body and used for mounting electrical elements; a guide rail is fixedly installed in the cabinet body, and a sliding block is connected to the guide rail in a sliding mode. The mounting plate and the sliding block are detachably connected in an inserted mode, and the mounting plate and the sliding block can rotate relatively. A driving unit is arranged in the cabinet body, the driving unit drives the sliding block to drive the mounting plate to move towards the outer side of the cabinet body and drives the mounting plate to rotate relative to the sliding block when the door body is opened, and a circuit on the back of the mounting plate is convenient to overhaul; the maintenance efficiency of the control cabinet can be greatly improved.

The invention relates to the technical field of sludge treatment, and discloses an intelligent sludge discharge and sludge dewatering compound control model system, which comprises a sludge production prediction module, a sludge dewatering control module, a sludge dewatering control module, a sludge dewatering control module, a sludge dewatering control module and a sludge dewatering control module, and is characterized in that the sludge production prediction module is used for predicting the sludge production and sludge quality of a sedimentation tank based on the sludge production and sludge quality of the water plant sedimentation tank; the feed-forward control module is used for determining a target of the water content of sludge in the sedimentation tank; the concentration target setting and dosing optimization module is used for dynamically optimizing the dosing amount of a flocculating agent in the concentration tank; and the dehydration control module is used for adjusting the adding amount of the flocculating agent in the dehydrator and the operation parameters of the dehydrator. According to the invention, the feed-forward control module determines the objective function of the sludge water content of the sedimentation tank according to the sludge concentration water content target and constructs the sludge discharge model, so that the sludge discharge opportunity and discharge capacity can be accurately set according to the sludge water content and the sludge yield, invalid or excessive sludge discharge is avoided, clear liquid discharge is reduced, and water consumption and energy consumption are effectively reduced; and energy-saving and efficient operation is realized.

The invention relates to the technical field of sludge treatment, and discloses an efficient foundation sludge treatment device for foundation engineering, which comprises a treatment cylinder, a feeding hole is formed in the outer wall of the treatment cylinder, a feeding hopper is arranged on the outer wall of the feeding hole, a rotating shaft is rotatably connected to the top of the treatment cylinder, and an operating mechanism is arranged at the top end of the rotating shaft; and the bottom end of the rotating shaft is fixedly connected with a hollow cylinder, a rotating ring is arranged outside the hollow cylinder, the rotating ring is rotationally connected to the inner wall of the treatment cylinder in a sealed mode, and four partition plates are fixedly connected between the inner wall of the rotating ring and the outer wall of the hollow cylinder at equal intervals. By arranging the fan-shaped filter plate, sludge can be filtered, impurity particles contained in the sludge can be treated, the situation that blockage is caused by the impurity particles in the subsequent sludge dewatering process is avoided, meanwhile, the fan-shaped filter plate can be automatically replaced, the replaced fan-shaped filter plate can be cleaned, manual shutdown, disassembly and cleaning are not needed, and the working efficiency is improved. And the working efficiency is greatly improved.

The invention discloses a centrifugal machine for chemical sludge dewatering. The centrifugal machine comprises a base, a shell, a rotary drum and a pushing device. The pushing device comprises a central shaft and a scraper device; a feeding hole is formed in the central shaft; a first dispersing hole is formed in one end of the central shaft; the central shaft and the rotary drum perform differential rotation in the same direction; the scraper device comprises a scraper sleeve; a scraper unit is arranged on the peripheral wall of the scraper sleeve; the scraper units are arranged along a spiral line; a spiral blade is movably arranged between every two adjacent scraper units; the scraper unit comprises a first sliding block, a second sliding block and a scraper plate; the first sliding block is slidably arranged on the scraper sleeve in the radial direction, the second sliding block is movably arranged in the first sliding block, and a spring is connected between the second sliding block and the scraper sleeve. A torsional spring is connected between the scraper blade and the first sliding block. The other end of the spiral blade is connected with the second sliding block of the adjacent scraper unit; dynamic adaptation to changes of different sludge viscosities is achieved, the effect of removing sludge on the inner wall of the rotary drum is improved, and it is guaranteed that the rotary drum keeps high permeability and high dehydration efficiency for a long time.

The utility model provides a centrifugal filter-pressing sludge dewatering structure, which comprises a shell, a Lurox triangular prism, a limit frame, a support structure and a driving device, the lower end of the shell is provided with a discharge port and a feed pipe, the inner wall of the shell is fixedly provided with a filter-pressing filter cartridge, the bottom of the side wall of the shell is provided with a plurality of water filtering holes, the feed pipe is slidably connected with the shell, and the limit frame is fixedly connected with the support structure. A material containing cavity and a centrifugal cavity are formed in the Lurox triangular prism, a feeding port, a water outlet and a discharging port are formed in the bottom of the Lurox triangular prism, a telescopic device is fixedly connected to the top of the material containing cavity, a scraper blade is fixedly connected to a telescopic shaft, the limiting frame is fixedly installed in the shell, and the supporting structure is fixed to the inner wall of the shell. The driving device drives the Lurox triangular prism to rotate in the shell, the bottom surface of the shell is in sliding connection with the inner wall, the pushing device is fixedly mounted on the bottom surface of the shell, centrifugal dewatering and filter-pressing dewatering are synchronously performed by adopting the same device, the water content of the sludge is further reduced, and the dewatering efficiency is improved.

The invention discloses a lime coagulation and clarification treatment system and method based on intelligent dosing, and belongs to the technical field of water treatment.The system comprises an efficient softening coagulation and clarification unit and an intelligent monitoring unit, a lime milk intelligent preparation unit, an intelligent dosing control unit and a sludge dewatering unit which are connected with the efficient softening coagulation and clarification unit. The efficient softening, coagulation and clarification unit is formed by sequentially connecting a wastewater regulating tank, a first-stage rapid mixing tank, a second-stage slow flocculation and concentration tank, a tubular membrane intelligent filtering device and a produced water neutralization tank; the intelligent monitoring unit collects incoming water and produced water data and transmits the data to the intelligent dosing control unit; the intelligent lime milk preparation unit is used for preparing and adding lime milk; the intelligent dosing control unit realizes intelligent dosing; and the sludge dewatering unit is used for treating the discharged sludge and returning the sewage. Intelligent monitoring, self-adaptive control, prediction algorithm and softening coagulation clarification are realized, the problems of inaccurate dosing, large water quality fluctuation and low automation degree of a traditional system are solved, and the system is suitable for scenes such as reclaimed water deep treatment and industrial wastewater treatment.

The invention relates to the technical field of sludge treatment equipment, and discloses sludge dewatering equipment and a using method of the stacked spiral sludge dewaterer, the sludge dewatering equipment comprises a dewatering box, a pre-concentration box and a wastewater collection box, a spiral shaft, a mounting ring, a fixed ring and a floating ring are arranged in the dewatering box, and the two ends of the spiral shaft are rotationally connected with the dewatering box; the mounting ring, the fixed rings and the floating rings are arranged on the outer side of the spiral shaft in a sleeving mode, the mounting ring is mounted in the dewatering box, and the fixed rings and the floating rings are arranged in a staggered and stacked mode; according to the sludge dewatering equipment, a compression structure formed by the spiral shaft, the fixed ring and the floating ring can be cleaned by arranging the cleaning structure, so that sludge causing blockage between the fixed ring and the floating ring is flushed away from a gap, and the fixed ring and the floating ring can be controlled to rotate by matching with the arrangement of the adjusting limiting mechanism; and the fixed ring and the floating ring can move to the position below the spray head for cleaning at different positions, so that no dead angle exists in cleaning.

The invention discloses a dynamic balance sludge centrifugal dehydrator based on feeding compensation, and relates to the technical field of sludge dehydration, in particular to the dynamic balance sludge centrifugal dehydrator based on feeding compensation. Comprising a machine frame, a rotatable centrifugal dewatering barrel installed on the machine frame, a detection module used for detecting an unbalance signal generated when the centrifugal dewatering barrel rotates in real time and a sludge feeding mechanism, and the feeding mechanism can adjust the feeding direction and the feeding amount of sludge according to the result of the detection module in the centrifugal dewatering process. The method is used for compensating the unbalance amount in the centrifugal dewatering process, and dynamic balance in the dewatering process is achieved. Through design of sludge feeding, sludge in the centrifugal dewatering barrel is distributed more uniformly, dynamic balance of the centrifugal dewatering machine in the dewatering process is realized, and the centrifugal dewatering barrel can rotate at a higher rotating speed during dewatering, so that the dewatering effect of the centrifugal dewatering machine is improved.

The application discloses a stacked-screw sludge dewatering machine and relates to the technical field of sludge dewatering equipment. The stacked-screw sludge dewatering machine comprises a workbench, a mixing barrel, a stirring device, an automatic adjusting assembly and a discharging device. When the pressure end of a pressure device descends, the linkage ends of multiple linkage structures respectively ascend and are limited in multiple transmission ends of the gear set at the top. At this time, the rotating speed of the multiple linkage structures is accelerated. The stacked-screw sludge dewatering machine of the application, on one hand, is convenient for changing the ascending height of the linkage block through the gravity borne by the pressure plate and automatically adjusting the rotating speed of the multiple second stirring pieces through the cooperation between the pressure device, the transmission device and the stirring device, and on the other hand, is convenient for limiting the three plates through the clamping plate through the cooperation between the limiting device and the pressure device, thereby avoiding the situation that the linkage block is located between the two driven gears and the second stirring piece is stopped.

The invention discloses a preparation method and a use method of tannic acid complex iron for strengthening the dehydration performance of ozonized sludge. The preparation method comprises the following steps: mixing and stirring soluble ferric salt and a tannic acid aqueous solution to form a tannic acid complex iron mixed solution, and adjusting the pH value to generate a tannic acid complex iron precipitate; the use method comprises the following steps: introducing ozone into organic sludge for pretreatment; adding tannic acid complex iron into the sludge subjected to ozone pretreatment, and fully mixing; ozone is introduced into a mixed solution of the tannic acid complex iron and the sludge for treatment. When the prepared tannic acid complex iron is added into a sludge system subjected to ozone oxidation treatment, the degradation effect of the system on sludge protein can be improved by 25%-35%, the dehydration effect of the sludge can reach the deep dehydration level, and the water content of a filter-pressed sludge cake is reduced to 40%-55%.

The invention discloses a river and lake sludge dewatering and curing ecological bank protection process. Ecological bank protection construction is achieved through in-situ resourceful treatment of sludge. The process comprises the following steps: firstly, pressing natural wood piles into the bottom of a bank slope to form a comb-shaped anti-sliding bent frame, and paving high-strength permeable geotextile pipe bags between the piles and the bank slope; bottom mud is extracted by adopting mud suction equipment, is modified by a flocculating agent and then is injected into a tubular bag in a layered manner, and gravity dehydration is completed by utilizing the permeable characteristic of tubular bag fabric; the tops of the pipe bags are backfilled with stacking materials for graded stacking, and solidification is accelerated through external pressurization to form a stable bank protection filling body; and finally, the surface layer is covered with planting soil, moisture-proof plants are planted, and the composite revetment with the permeation drainage function and the ecological function is constructed. Compared with a traditional technology, the technology effectively solves the problems of bottom mud outward transportation pollution and resource waste through triple synergy of geotextile tube bag gravity dehydration, natural timber pile stability enhancement, building body strength improvement through graded stacking and loading and the like, and the formed revetment has ecological restoration and landscape functions. The method is suitable for ecological restoration of rivers and lakes, wetland reconstruction and waterfront environment treatment, and has the comprehensive advantages of convenience in construction, environmental friendliness, economy and high efficiency.

The utility model discloses a sludge calorific value conditioning machine which comprises two fixing frames, a plurality of water seepage bases are arranged between the two fixing frames, sludge containing boxes are arranged at the top ends of the water seepage bases, and a pressing plate is arranged at the front end of the sludge containing box at the foremost end. Extrusion plates are arranged on the surfaces of the rear ends of the water seepage bases between the pressing plate and the water seepage base at the rearmost end, and two fixed supporting rods are arranged on the two sides of the sludge containing box at the rearmost end; a plurality of sliding supporting rods are arranged on the two sides of the water seepage bases between the pressing plate and the water seepage base at the rearmost end and the two sides of the pressing plate, and upper connecting rods are installed between the two fixed supporting rods and the sliding supporting rods close to the fixed supporting rods in a hinged mode. By arranging a series of structures, multiple groups of sludge can be dewatered at the same time, and the efficiency is high; the structure is simple, the operation steps are convenient, the treatment cost is low, and sludge dewatering can be effectively performed.

The present invention discloses a single filter cloth deep sludge dewatering device and a working method thereof. The device comprises an ultrasonic sludge conditioning tank, the sludge outlet of the ultrasonic sludge conditioning tank is connected to a sludge distributing mechanism, the sludge distributing mechanism comprises a plurality of sludge distributing nozzles; the device also comprises a press machine arranged on one side of the sludge distributing mechanism, a filter press plate mechanism is arranged at the bottom of the press machine, the filter press plate mechanism comprises a plurality of filter press plates stacked up and down, and a position sensor for limiting the depth of the sludge distributing nozzle is arranged on the upper surface of each filter press plate; the position between adjacent filter press plates is pulled by the press machine and switched between the closing and separation states; each sludge distributing nozzle is used to extend into between adjacent filter press plates for distributing sludge when the adjacent filter press plates are in the separation state, and is also used to withdraw from between the filter press plates after the sludge distributing is completed; the press machine is used to squeeze and maintain the sludge between the plurality of filter press plates after the sludge distributing nozzle withdraws. The present invention solves the problems of low dehydration rate and difficult replacement of filter cloth in the existing sludge dewatering mechanism.

The invention discloses a sludge dewatering device for sewage treatment, and belongs to the technical field of sewage treatment. Comprising a dewatering mechanism, a driving mechanism and an auxiliary mechanism, the dewatering mechanism comprises a filter bag, the driving mechanism comprises a rotary driving assembly, a movable driving assembly and two restraining parts, and the restraining parts are used for binding an opening of the filter bag; the rotary driving assembly is used for driving the restraining part at the bottom to rotate around the axis of the filter bag, and the movable driving assembly is used for driving the restraining part at the bottom to move in the axial direction of the filter bag; the auxiliary mechanism comprises an upper extrusion part, a lower extrusion part and an auxiliary driving assembly; the auxiliary driving assembly drives the lower extrusion part to move in the axial direction of the filter bag relative to the upper extrusion part; the problem that the service life of the filter bag is greatly shortened after long-time work due to the fact that the positions of the two ends of the filter bag are fixed and the pulling strength is large during screwing when the sludge is dewatered in a rotary screwing mode is solved.

The invention belongs to the technical field of sludge dewatering, and discloses a water conservancy project sludge separation device which comprises a supporting frame, a filter cylinder is installed on the inner wall of the supporting frame, and the lower end face of the supporting frame communicates with a water outlet; the spiral blade is arranged in the filter cartridge in a sleeving manner and is connected with an output shaft of the servo motor through a transmission assembly, the screw pitch of the spiral blade is gradually reduced from the feeding end to the discharging end of the filter cartridge, and sludge is dewatered; a moisture sensor is arranged on the outer wall of the extrusion plate and is used for detecting the moisture content of the extruded and dehydrated sludge; the cleaning assembly is arranged outside the filter cartridge and comprises a water spraying ring, a valve rod, a valve shell and a hydraulic rod; the water spraying ring has small water yield when the front end of the filter cartridge is slightly blocked, and has large water yield when the rear end of the filter cartridge is seriously blocked. The flushing water pressure can be automatically adjusted according to the blocking degrees of different areas outside the filter cartridge, water resources can be saved, and the cleaning effect is not affected.

The present invention discloses a riverbed sludge dewatering device, comprising: a mounting frame; a centrifugal limiting shell, which is arranged on the mounting frame, and a drain pipe is arranged at the bottom of the centrifugal limiting shell for discharging water after sludge dewatering; a centrifugal drive assembly, which is arranged obliquely on the centrifugal limiting shell and is used for centrifugal dewatering of riverbed sludge; a feeding assembly, which is arranged on the mounting frame and is used for feeding sludge to the centrifugal drive assembly; a filter press push-out assembly, which is arranged on the centrifugal drive assembly and connected to the feeding assembly, and is used to filter press the mud cake after centrifugal dewatering and push the filter press mud cake into a mud collection tank while the centrifugal drive assembly is running. The present invention can synchronously drive the interconnected centrifugal drive assembly and the filter press push-out assembly to operate, thereby enabling the entire device to perform filter press treatment on the sludge while centrifugally dewatering the sludge, so as to reduce the moisture content of the sludge after the centrifugal dewatering operation.

The utility model provides an energy-saving sludge reduction system, which belongs to the field of sludge dewatering and is used for sludge reduction. Water vapor in the drying machine is condensed into a liquid state through the condenser and then releases heat to heat the sludge before dehydration, the viscosity of the heated sludge is reduced, the temperature is increased, the hydrophilicity of polysaccharide and protein components in the sludge is changed, and meanwhile, due to the fact that a conditioner is added into the sludge, the sludge can be recycled. The reaction efficiency of the conditioner and the sludge is improved through heating, the dehydration performance of the sludge is improved through the factors, the dehydration efficiency in the dehydration process is improved, and more water is removed from the sludge through dehydration. Therefore, in the subsequent drying process, water needing to be further removed through drying is reduced, the energy consumption in the drying process is reduced, and the systematic energy consumption of dehydration and drying is reduced.

The invention discloses a centrifugal machine for sludge dewatering, belongs to the technical field of sludge dewatering, and aims to solve the problems that when the centrifugal machine for sludge dewatering is used, sludge on the inner wall of a rotary drum can be gradually compacted to form a filter cake layer, particles in the filter cake layer easily form a bridging structure at an inlet of a through hole, and the sludge dewatering efficiency is affected. A controller is arranged on the outer wall of the supporting frame, a cylinder is arranged in the supporting frame, one side of the cylinder communicates with a drainage pipe, a first driving assembly is arranged in the cylinder, a dewatering assembly is arranged on one side of the first driving assembly, a second driving assembly is arranged in the cylinder and rotationally connected with the cylinder, and a sewage pumping assembly is arranged at the top of the supporting frame. According to the invention, dual blockage clearing of crushing blockages by the conical rod and purging by high-pressure gas is conveniently realized, shutdown disassembly is not needed, continuous smoothness of the water outlet hole is guaranteed, stable efficiency of centrifugal dewatering is maintained, and the dewatering effect is enhanced.

The utility model relates to the technical field of sewage treatment, in particular to a sludge dewatering treatment device which comprises a rack, a sludge reaction tank, a concentration filter belt, an upper dewatering filter belt and a lower dewatering filter belt, the sludge reaction tank is arranged at the upper end of the left side of the rack, a feeding port is formed in the left portion of the sludge reaction tank, and a concentration motor and a concentration driving roller are arranged at the upper end of the right portion of the rack. A concentration tensioning roller is arranged at the upper end of the left part of the rack. The gravity dewatering device is reasonable and compact in structure and convenient to use, a lengthened gravity dewatering area is formed through the concentration filter belt, the upper dewatering filter belt and the lower dewatering filter belt, dewatering efficiency is improved, energy consumption is greatly reduced, tension of each filter belt is controlled through the concentration roller adjusting air cylinder, the upper roller adjusting air cylinder and the lower roller adjusting air cylinder, constant tension of the filter belts is guaranteed, and the dewatering efficiency is improved. All the filter belts can be correctly aligned through all the deviation rectifying devices, and the device has the advantages of being large in treatment capacity, low in energy consumption, high in dehydration efficiency, long in service life, easy and convenient to adjust, safe, capable of saving labor and efficient.

The invention relates to the technical field of filtering equipment, in particular to intelligent efficient treatment equipment and method for sludge dewatering, and the intelligent efficient treatment equipment comprises a shell, a feeding hole, a belt type filter pressing part, a separated water treatment part, a separated sludge storage part, a cleaning part, a monitoring module and a control module. The belt type filter pressing part is used for carrying out multi-stage filter pressing on sludge by adopting three groups of press rollers, the separated water treatment part is used for collecting filtrate by stages through a multi-stage water storage cavity, and the cleaning part is used for circularly spraying and cleaning filter cloth by utilizing separated water. The monitoring module detects the water level of each water storage cavity in real time, and the control module dynamically adjusts the dehydration parameters based on the first dehydration characterization value and the second dehydration characterization value and automatically diagnoses reasons and optimizes the operation state when the dehydration effect does not reach the standard. Through intelligent monitoring and self-adaptive regulation and control, the dehydration efficiency is effectively improved, the blockage of the filter cloth is reduced, and the device has the advantages of high efficiency, energy conservation, stable operation and the like, and is suitable for various sludge dehydration treatment scenes.

The utility model relates to the technical field of sludge dewatering, and discloses a filter cloth recycling and cleaning device which comprises a mounting frame, two groups of filter cloth overlapped up and down, a tensioning mechanism arranged along the central axis of the mounting frame, a cleaning mechanism, a low-vacuum water suction box, a leveling assembly and two groups of sludge scraping plates, the two groups of filter cloth penetrate into the mounting frame from one end of the mounting frame and sequentially penetrate through the leveling assembly, the low-vacuum water suction box, the cleaning mechanism and the tensioning mechanism; the cloth rolling mechanism penetrates out of the mounting frame from the other end of the mounting frame, separates one group of filter cloth, sequentially penetrates through the mud scraping plate, the tensioning mechanism, the cleaning mechanism and the low-vacuum water suction box and then reaches the leveling assembly. The two layers of filter cloth for clamping and conveying sludge are separated, sequentially pass through the sludge scraping plate, the tensioning mechanism, the cleaning mechanism and the low-vacuum water suction box and then are recycled to the cloth rolling mechanism on the leveling assembly, the sludge residues remaining on the filter cloth are automatically removed in various modes for removing the sludge residues on the filter cloth, and the reuse efficiency of the recycled filter cloth is improved.

The water conservancy project river sludge dewatering device comprises a water accumulation tank, the top of the water accumulation tank is sequentially connected with a first vertical frame, a second vertical frame and a third vertical frame in the left-right direction, the upper end of the first vertical frame is connected with a sludge box, a conveying belt is arranged below the sludge box, and the upper end of the second vertical frame is connected with a conveying shell; a hopper is communicated with the top of the conveying shell, an inverted U-shaped seat is connected to the upper end of the third vertical frame, a fixed ring is connected to the left side of the bottom of the U-shaped seat, a sealing bearing is connected to the right side of the bottom of the U-shaped seat, a movable ring is installed in the sealing bearing, and a filter bag is installed between the fixed ring and the movable ring; the right end of the U-shaped base is connected with a material blocking assembly. The structure design is reasonable, triple dehydration of sludge is achieved, the river sludge dehydration efficiency is effectively improved, and the sludge dehydration effect is guaranteed.

The invention relates to the technical field of precipitation and sludge dewatering, in particular to a decontamination and dewatering land-saving integrated treatment method. When turbidity removal is taken as a treatment target, the system comprises a pretreatment and biological enhancement precipitation and dehydration integrated tank, a filter tank, a clean water tank, a drainage tank, a concentration tank and a pump room, when pollutants are removed as a treatment target, the device comprises a pretreatment tank, a biological enhancement precipitation and dehydration integrated tank, an ozone contact tank, an activated carbon adsorption tank, a filter tank, a clean water tank, a drainage tank, a concentration tank and a pump room, the biological enhancement precipitation and dehydration integrated pool comprises a main pool body, a sludge backflow dehydration machine room, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are matched, the main pool body comprises a mixing area, a lifting flocculation area, a transition area, a sludge-water separation area, a water outlet area, a sludge concentration area and a sludge storage area, and the main pool body and the sludge backflow dehydration machine room are jointly built to achieve precipitation and sludge dehydration functions. According to the invention, processes of efficient precipitation, sludge dewatering, biological enhancement and land-saving integration can be taken into consideration, so as to realize dual goals of deep purification of water quality and recycling of resources.

The utility model provides a high-density pool sludge dewatering machine dilution system which comprises a high-density sedimentation pool, a sludge discharge pipe, a water outlet pipe, a sludge thickness detection device, a mixer, a sludge pump, a dilution pipe, an electric control opening adjusting valve, a controller, a mixing pipe, a sludge concentration detector and a centrifugal machine. The sludge discharge pipe is respectively connected with the bottom of the high-density sedimentation tank and the top of the mixer, the water outlet pipe is connected with the top of the high-density sedimentation tank, the dilution pipe is respectively connected with the water outlet pipe and the top of the mixer, the sludge electric control opening adjusting valve is arranged on the dilution pipe, and the sludge electric control opening adjusting valve is arranged on the dilution pipe. The sludge thickness detection device is arranged in the high-density sedimentation tank, the mixing pipe is respectively connected with the bottom of the mixer and the centrifugal machine, the sludge concentration detector is arranged on the mixing pipe, and the sludge pump is arranged on the sludge discharge pipe. The utility model aims to solve the problem that a centrifugal machine cannot operate normally due to overhigh sludge viscosity of the conventional high-density tank.

The invention discloses belt type concentration and dehydration equipment for sludge treatment, and relates to the technical field of sludge treatment. The sludge dewatering device comprises a bottom frame and a top frame, the top frame is stably installed at the top end of the bottom frame through bolts, a plurality of guide rollers are rotationally arranged in the bottom frame and the top frame, the outer walls of the guide rollers in the bottom frame and the top frame are sleeved with filter belts correspondingly and used for sludge dewatering, and the ends, close to the discharging opening, in the bottom frame and the top frame are each provided with a desliming assembly. The middle parts of the bottom frame and the top frame are respectively provided with a spray-washing assembly and a vibration composite drainage assembly, and impurity adsorption assemblies are respectively arranged at one ends, close to the feed port, in the bottom frame and the top frame; through the arrangement of the vibration composite drainage assembly and the impurity adsorption assembly, the vibration composite drainage assembly firstly accelerates the separation of water in pores of the filter belt through high-frequency vibration, then cooperates with a high-strength air curtain sprayed by an air knife to quickly peel off water stains on the surface, and then performs secondary adsorption cleaning on residual fine particles on the surface of the filter belt through the impurity adsorption assembly; impurities are effectively prevented from blocking filter holes, and water permeability of the filter strip is maintained.

The invention discloses a pickling line wastewater treatment device and treatment method, and relates to the technical field of pickling line wastewater treatment. The pickling line wastewater treatment device comprises a water injection tank, a medicament storage tank system, an adjusting tank, a neutralization reaction tank, a coagulative precipitation tank, a sludge concentration tank, sludge dewatering equipment, a water collecting tank, a water purifying tank and a sludge storage bin which are communicated in sequence, the filter frame is located in the shell, and sludge enters the filter frame through the conveying pipeline; the rotating assembly is used for driving the filtering frame to rotate, so that the sludge is dehydrated under the action of centrifugal force; the extrusion filter plate is arranged on the inner side of the filter frame and is used for extruding the sludge. The extrusion filter plate capable of reciprocating is arranged in the rotatable filter frame, so that the dehydration efficiency and the solid content of a mud cake can be remarkably improved by utilizing the synergistic effect of dynamic centrifugal force and intermittent mechanical pressure.

The utility model relates to a leachate treatment system, which relates to the technical field of leachate treatment, and adopts the technical scheme that the leachate treatment system comprises an accommodating device, a pretreatment device, a sludge dewatering device and an ozone treatment device, and can reduce the contents of heavy metals and organic matters in leachate. Meanwhile, sludge, sewage, waste gas and other impurities generated in the treatment process can be treated. In addition, the solid waste to be treated can be incinerated through the incineration device. Sludge, sewage and waste gas generated in the whole treatment process can be effectively treated and utilized, diversity and repeated utilization of resources are achieved, environmental pollution can be reduced, and the resource utilization efficiency and the environmental protection level of cement production are further improved.