825 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 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 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 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 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 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 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.

The application relates to the technical field of sludge treatment, and discloses a sludge soil solidification and ecological improvement solidification device which comprises a device shell and a collecting box, a movable blocking plate is slidably connected in the device shell, and a stirring barrel is attached to the top of the movable blocking plate. The sludge soil solidification and ecological improvement solidification device and the operation method thereof effectively solve the problem that, in actual use, the device adopts a sludge extrusion mode for sludge dewatering, part of the sludge overflows from the extrusion equipment during the extrusion process, the device cannot effectively dewater the sludge, and the dewatering efficiency of the device is low. In the whole operation process, the sludge in the barrel is clamped and heated to accelerate the dewatering speed of the sludge, the sludge in the device can be effectively prevented from overflowing, the dewatering efficiency of the device for the sludge can be greatly improved, and therefore the working efficiency of the device is greatly improved.

The invention relates to the technical field of sludge treatment, in particular to a sludge dewatering and filter pressing device capable of preventing mud cake adhesion and a filter pressing method thereof.The sludge dewatering and filter pressing device comprises a machine table and transverse plates fixed to the machine table and symmetrically arranged, and linear rails are arranged on the transverse plates; the multiple filter plates are distributed at equal intervals, and extension frames which are symmetrically arranged and are in sliding connection with the linear rails are arranged on the side walls of the filter plates; the translation assembly is arranged on the transverse plate, and a movable plate is connected to the translation assembly; the lifting vibration mechanism is arranged on the movable plate, the lifting vibration mechanism is connected with a loader, the movable plate is further provided with a follow-up deflection mechanism connected with the lifting vibration mechanism, and through cooperation of the lifting vibration mechanism and the follow-up deflection mechanism, the loader can be controlled to move to the position matched with the extension frame; and the mud cake on the filter plate is separated from the filter plate in a vibration and deflection motion mode.

The utility model relates to a short-process sludge water treatment system for a water supply plant. The short-process sludge water treatment system comprises a drainage tank, a sludge discharge tank, a membrane separation system, a balance tank and a sludge dewatering and temporary storage system which are connected in sequence. The process route is simple, the flow is short, recycled water without PAM can be produced, zero water discharge in the whole process is achieved, the investment and construction cost is low, and no water resource is wasted.

The invention belongs to the technical field of coal mine machinery cleaning, and provides a filling sludge cleaning machine of coal mine machinery, which comprises a support frame assembly, and a moving mechanism is arranged on the support frame assembly; the sludge suction assembly comprises a working box arranged on the moving mechanism, a suction pump is arranged in the working box, a gangue crushing mechanism is arranged at the bottom of the working box, one end of the gangue crushing mechanism communicates with a suction head, the other end of the gangue crushing mechanism communicates with the feeding end of the suction pump, and a driving mechanism is arranged in the working box; the driving mechanism is used for driving the suction pump and the gangue crushing mechanism to operate; the dewatering storage assembly comprises a storage box arranged at the top of the supporting frame assembly, a sludge dewatering mechanism is arranged in the storage box, the feeding end of the sludge dewatering mechanism is communicated with the discharging end of the suction pump, and the discharging end of the sludge dewatering mechanism is communicated with a storage cavity. In the suction process, gangue can be prevented from blocking the sludge cleaning machine, and meanwhile sludge can be dewatered in time.

The invention discloses a topcon battery fluorine-containing wastewater calcium fluoride sludge treatment process based on a double-layer printing process, and relates to the technical field of solar cell production, the topcon battery fluorine-containing wastewater calcium fluoride sludge treatment process comprises the steps of wastewater pretreatment, accurate pH value regulation and control, efficient precipitation generation, fine sludge separation and drying, an online fluorine ion concentration detector and an automatic control program are combined to precisely add a calcium chloride solution to form precipitation particles easy to settle, a sludge treatment device adopts a double-layer filter pressing structure to improve the sludge dewatering effect, and meanwhile, a filter pressing belt cleaning and monitoring system is arranged to prevent filter holes from being blocked and monitor the state of a filter pressing belt in real time, so that the sludge dewatering effect is improved. According to the method, the fluorine-containing wastewater can be efficiently converted into the high-quality calcium fluoride sludge, the wastewater treatment cost is reduced, and the resource utilization rate is increased.

The invention discloses a plant ash loaded cation modified chitosan-polyacrylamide efficient sludge dehydrating agent as well as a preparation method and application thereof, and belongs to the technical field of sludge dehydration. The preparation method of the efficient sludge dehydrating agent comprises the following steps: firstly, carrying out cationic grafting modification on chitosan by adopting dimethyl diallyl ammonium chloride, and then introducing the cationic grafting modified chitosan and polyacrylamide into the surface of plant ash, so that the surface of the plant ash is obviously changed; and a discontinuous, multi-gap, disordered and irregular multi-layer structure is presented. The specific surface area of the plant ash is increased by introducing the cationic grafting modified chitosan and the polyacrylamide, and the complex surface structure is beneficial for the plant ash to generate gaps which are difficult to compress in a sludge filter cake in the sludge dewatering process, so that the dewatering performance of the sludge is improved.

The application provides a quick dewatering type silt dewatering device for civil construction, which comprises a working box, an L-shaped plate one is arranged on one side of the outer wall of the working box, an L-shaped plate two is arranged on the other side of the outer wall of the working box, a moving assembly is arranged between the L-shaped plate one and the L-shaped plate two, a dewatering box is arranged on the moving assembly, an integrated collecting box is fixedly arranged at the bottom of the dewatering box, and an extrusion assembly is connected with the dewatering box through a discharging pipeline at one end of the dewatering box. The application has the following beneficial effects: the dewatered silt enters the extrusion assembly along the discharging pipeline, the dewatered silt is finally extruded by the extrusion assembly, the dewatered silt is extruded into a sheet-shaped block, the sheet-shaped block is finally moved and uniformly laid on the workbench by the moving assembly, the uniformly laid block is extruded again by the extrusion plate, and the effect of extruding water is more guaranteed.

The utility model discloses an efficient sludge dewatering device in the technical field of sludge treatment, which comprises a sludge frame which is a square screen frame with an opening in the top, a bottom sealing plate is embedded and sealed at the bottom of the sludge frame to block the sludge frame, and a sludge pressing plate and a hydraulic machine are arranged at the top of the sludge frame, so that sludge is fed into the sludge frame. Through cooperation of the sludge frame and the hydraulic machine, not only can bagged sludge be dewatered, but also fluid sludge can be directly pressed, so that filter-pressing dewatering can be completed, repeated centrifugation for waiting for sludge rotation to throw out moisture is not needed, and the sludge pressing plate is matched with the sludge frame to directly press, so that the sludge is left in the sludge frame, and the sludge can be conveniently dewatered. Sewage passes through the sludge frame and is discharged into the water filtering tank, so that sludge dewatering is facilitated, the operation can be completed by pressing once, the single-time dewatering efficiency is high, and a large amount of sludge transferred to the site can be dewatered more quickly.

The invention relates to the field of sludge treatment equipment and discloses a high-efficiency anti-clogging sludge thickening and dewatering tank, comprising a sludge dewatering tank and a concentrated sludge storage tank, the sludge dewatering tank and the concentrated sludge storage tank being connected with a sludge discharge pipe, four groups of sludge dewatering frames with pause-type circular motion cloths are rotatably arranged at the inner center of the sludge dewatering tank, and a rotary driving machine is further provided in the sludge dewatering tank for driving the sludge dewatering frames, a filter press dewatering mechanism, a discharge mechanism and a cleaning mechanism are respectively provided at intervals of ninety degrees around the corresponding discharge end of the sludge dewatering tank, and a transmission gear set for controlling the movement of the filter press dewatering mechanism and the cleaning mechanism is provided in the rotary driving assembly; the four groups of sludge dewatering frames in the dewatering tank can synchronously perform concentrated sludge discharging, mechanical filter press dewatering, dehydrated mud cake discharging and cleaning operations, and each group of sludge dewatering frames can perform the above operations in sequence, and the dewatering tank has high-efficiency anti-clogging, energy-saving, synchronization and uniform dehydration rate.

The invention relates to the technical field of sewage treatment, in particular to efficient dewatering equipment for sludge. The efficient sludge dewatering equipment comprises a shell, a rotary drum, a rotary shaft and an adjusting mechanism. The adjusting mechanism comprises a mud scraping ring, and a mud scraping plate is arranged on the mud scraping ring. The rotary drum and the rotary shaft rotate relatively, and when the rotary drum drives the sludge scraping ring to rotate, the sludge scraping plate cuts solid materials formed after sludge dewatering. Solid materials are divided into a plurality of small blocks through cutting, so that the solid materials can be discharged outwards more conveniently, and blockage is avoided. When the moisture content of the solid material discharged from the discharge hole is higher, the rotating speeds of the rotary drum and the rotating shaft are increased, so that the centrifugal force on the sludge is increased, and the dewatering efficiency of the sludge is improved. The rotating speed difference between the rotary drum and the rotating shaft is reduced, so that the retention time of the sludge in the rotary drum is prolonged, and the dewatering efficiency of the sludge is further improved. The invention provides efficient dewatering equipment for sludge to solve the problems that an existing dewatering machine is uneven in sludge drying and prone to blockage.

The invention discloses a sludge dewatering device and a sludge dewatering system.The sludge dewatering device comprises a sludge dewatering machine, a feeding hopper is arranged at the top of the sludge dewatering machine, a belt filter press is arranged in the sludge dewatering machine, and an anti-stacking assembly is fixedly connected to the right side of the sludge dewatering machine; the anti-stacking assembly comprises a supporting plate, a fixing plate, a motor, a rotating disc, a transmission column, a transmission plate, a connecting rod and a material pushing plate, the supporting plate is fixedly connected to the right side of the sludge dewatering machine, the fixing plate is fixedly connected to the left side of the supporting plate, the motor is fixedly connected to the top of the fixing plate, and the rotating disc is fixedly connected to the output end of the motor. The transmission column is fixedly connected to the top of the rotating disc, and the transmission plate is slidably connected to the surface of the transmission column. According to the sludge dewatering device, the functionality of easily causing sludge accumulation is increased, so that the sludge dewatering device has the function of automatically pushing sludge, the working efficiency of the sludge dewatering device is improved, and the situation of easily causing sludge accumulation is prevented.

The invention relates to the technical field of sludge dewatering, and discloses a water supply and drainage sludge dewatering machine which comprises a filter pressing rack, two mounting frames are fixedly mounted on the filter pressing rack, a plurality of mounting holes distributed in a linear array are formed in the mounting frames, rotating rods are rotatably mounted in the mounting holes, and the rotating rods are connected with the filter pressing rack. A mud blocking block matched with the upper filter pressing belt is fixedly mounted at the bottom of the rotating rod, a gear is fixedly mounted at the top of the rotating rod, a rack meshed with the gear is mounted on the mounting frame in a sliding manner, cams are symmetrically and rotationally mounted at the two ends of one mounting frame, and a pre-pressing assembly is arranged on the filter pressing rack; the mud blocking block is driven to turn over during use, so that periodic alternation of sludge separation positions is realized, areas, bearing pressure, of the filter pressing belt are uniformly distributed, abrasion acceleration caused by local continuous high load is avoided, the overall service life of the filter pressing belt is prolonged, the switching action of the mud blocking block is synchronous with the movement of the filter pressing belt, and continuous and stable operation of equipment is guaranteed.

This invention provides a sludge dewatering system, including a screw press dewatering machine, a sludge pump, a dosing pump, a stirrer, and a controller. The inlet of the screw press dewatering machine is connected to the outlets of the sludge pump and the dosing pump via pipelines. The outlet of the sludge pump is equipped with a sludge flow meter, the outlet of the dosing pump is equipped with a dosing flow meter, and the filtrate outlet of the screw press dewatering machine is equipped with a filtrate flow meter. The controller is electrically connected to the sludge pump, the dosing pump, the stirrer, the sludge flow meter, the dosing flow meter, and the filtrate flow meter. The screw press dewatering machine has a screw pitch of 3-4 mm, a screw shaft diameter of 40-55 mm, a screw shaft compression ratio of 2-3.5, a screw shaft rotation speed of 3-7 rpm, and an outlet pressure of 0.02-0.04 MPa. The sludge dewatering system of the present invention can adjust the moisture content of the dewatered sludge to between 85% and 95%, provided that the sludge feed rate is stable at 400-680 kg·ds / h and the sludge feed moisture content is between 99% and 96%.

The invention discloses a plate-and-frame filter press for a sludge dewatering machine room, which comprises alternately arranged filter plates, filter frames and filter cloth covering the filter plates, vibration support hole groups are arranged in grooves of the filter plates along diagonal lines, and hydraulically driven vibration support components are arranged in the holes; when the filter plate and the filter frame are in press fit, the hydraulic lifting mechanism pushes the vibration supporting assembly to jack the filter cloth to prevent sinking, and the built-in micro servo motor drives the arc-shaped vibration block and the groove to be meshed / separated periodically, so that the vibration supporting plate vibrates longitudinally to dredge filter cloth meshes and promote a filter cake to fall off. Anti-collapse supporting and on-line vibration cleaning of the filter cloth are achieved, the blocking problem can be solved without disassembling the machine, and the dewatering efficiency is remarkably improved.

The utility model belongs to the technical field of sludge treatment, and particularly relates to a stacked spiral sludge dewatering treatment device which comprises a flocculation box, a support frame is arranged at the bottom of the flocculation box, a feed chute is arranged on the side edge of the flocculation box in a protruding manner, and a feed pipe is arranged at the bottom of the feed chute; the partition plate is vertically arranged in the feeding groove, and an overflow groove is formed in the top of the partition plate; the communicating groove is formed in the side wall of the flocculation box and is positioned between the feeding groove and the flocculation box; the quantitative feeding structure is arranged at the top of the flocculation box and is used for quantitatively feeding a medicament; the stirring structure is arranged in the flocculation box and is connected with the quantitative feeding structure; a connecting pipe is arranged between the dehydrator body and the flocculation box. And the effect of quantitatively feeding the medicament is achieved.

The invention relates to the technical field of fly ash treatment, and provides pressurizing and curing equipment for sludge dewatering, which comprises an equipment bin body, a mixing bin and a water collecting bin arranged below the mixing bin are arranged in the equipment bin body, the mixing bin comprises at least three layers of annular cavities, and water filtering holes leading to the water collecting bin are formed in the bottom wall of each annular cavity; a mixing cavity outlet is formed in the side wall between every two adjacent annular cavities, a movable door is installed at each mixing cavity outlet, and a discharging opening is formed in the side wall of the outer side of the outermost annular cavity in the annular cavities. The rotation driving mechanism is in transmission connection with the stirring and pushing mechanism, the stirring and pushing mechanism pushes the materials in the corresponding annular cavity to rotate clockwise when rotating clockwise, and the materials in the corresponding annular cavity pass through the stirring and pushing mechanism and are stirred by the stirring and pushing mechanism when rotating anticlockwise; by means of the sludge dewatering and curing equipment, the sludge dewatering and curing operation efficiency can be improved.