482 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 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 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 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 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 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.

The present application relates to sludge treatment equipment technical field, disclose a kind of sludge dewatering machine and use method, the sludge dewatering machine includes rack, the lower position of both sides of the rack is equipped with backing plate, motor one and motor two are respectively equipped on the backing plate, one end of the motor one is connected with main pulley one, one end of the motor two is connected with main pulley two;Dehydrator body is equipped on the rack, bearing seat one is equipped on both sides of the dehydrator body, bearing seat one is respectively inserted with shaft one and shaft two, bearing seat two is equipped on the side of shaft one away from the dehydrator body, the bottom of bearing seat two is fixed on the rack, secondary pulley one is sleeved on the shaft one between bearing seat two and bearing seat one, and the main pulley one is connected with the main pulley one by belt one. Advantageous effect: keep the stress balance of internal stirring, improve the sludge dewatering effect.

The present application relates to sludge treatment technical field, especially in kind of sludge's dry dehydration equipment and dehydration process, a kind of sludge's dry dehydration equipment including rack, drying cylinder, screening cylinder, first belt conveyor, crushing assembly and hot air conveying component, drying cylinder is arranged on rack, screening cylinder is arranged at the bottom of drying cylinder.The present application is provided with screening cylinder, crushing assembly and hot air conveying component, since the diameter of the screening hole opened on the circumferential wall of screening cylinder increases from bottom to top, therefore the relatively dry sludge block of large particle size is discharged from the screening hole in the upper part of screening cylinder, the relatively moist sludge block of small particle size is discharged from the screening hole in the lower part of screening cylinder, so under the action of hot air blown upward by hot air conveying component, the sludge block of high humidity is fast in drying speed due to its small particle size, and the sludge block of low humidity is slow in drying speed due to its large particle size, so it is beneficial to improve the humidity uniformity of dried material.

The utility model relates to solid waste treatment technical field, and disclose a kind of sludge dewatering device, comprising: filter cartridge, air cavity, material collecting tank, rack, the inside fixedly connected with filter cartridge of air cavity, the side fixedly connected with material collecting tank of rack, the top of rack is provided with air cavity;Drainage assembly between the setting of barrel and rack, the drainage assembly is used to concentrate the water filtered out to sludge and discharge;Dehydration extrusion assembly is set in the inside of filter cartridge, the side fixedly connected with motor mounting cover of barrel, the inside of motor mounting cover is provided with dehydration extrusion assembly;Discharge assembly is set in the side of barrel, the discharge assembly is used to concentrate the sludge of dehydration and discharge;Exhaust component is set in the top and inside of barrel, the exhaust component is used to carry out exhaust extraction pressure to the inside of barrel, and this sludge dewatering device is through spiral gradual change extrusion, intermittent vacuum pressurization and structure design, and dehydration is efficiently carried out to moisture content 30% or less.

The invention provides a sludge dewatering device for water conservancy river ecological management, and relates to the technical field of water conservancy project and river ecological management. The mounting bottom plate is mounted in ship body equipment, and the supporting frame is fixedly mounted at the upper end of the mounting bottom plate; the upper end of the supporting frame is of an inclined face structure inclining towards the lower portion of one side, and an inclined frame is fixedly installed on the inclined face structure of the supporting frame. A dewatering box with an upward opening end is fixedly mounted at the upper end of the inclined frame; a floating platform is arranged on one side of the mounting bottom plate and located in the water surface. A sludge mixing box is mounted at the upper end of the floating platform. The floating platform is in sliding fit with a hanging pin of the supporting frame through a movable strip hole in a connecting arm and is matched with a stable row, extending into water, at the bottom of the floating platform, so that the floating platform can adapt to water surface fluctuation, wind wave impact is effectively buffered, and a dynamic and stable working platform is provided for a sludge pumping box and a sludge mixing box; and continuity and reliability of mud pumping and mixing operation are ensured.

The invention discloses a thickening and dewatering belt filter press with a conditioning and modifying mechanism, and relates to the technical field of sludge treatment.The thickening and dewatering belt filter press comprises a flocculation conditioning unit, a thickening and dewatering unit, a modification conditioning unit and a squeezing and dewatering unit, and the flocculation conditioning unit, the thickening and dewatering unit, the modification conditioning unit and the squeezing and dewatering unit form a sludge treatment route; the flocculation conditioning unit is used for performing flocculation conditioning on the sludge; the concentration and dehydration unit is used for performing concentration treatment on the sludge; the modification conditioning unit is used for dosing, stirring and conditioning the sludge, and the squeezing and dewatering unit is used for squeezing and dewatering the sludge. The concentration section dosing device is innovatively designed, the sludge dewatering performance is improved, a sludge cake structure with more porosity is formed in the sludge squeezing process, the two opposite pressing rollers are additionally arranged at the squeezing tail end and oppositely extrude with the main pressing roller, moisture in the sludge is further squeezed out, finally, the moisture content of sludge obtained through primary dewatering is greatly reduced, and the sludge dewatering efficiency is improved. The mud cake is high in hardness, low in dryness and small in occupied area.

The utility model relates to the technical field of sludge dewatering, and disclose an industrial sludge dewatering device, including equipment main part, still include: coating mechanism, lower cleaning mechanism and upper cleaning mechanism, equipment main part's top end inner wall is fixedly connected with the top end of coating mechanism, equipment main part includes the casing, lower transmission roll, lower filter tape, lower press roll, upper transmission roll, upper filter tape, upper press roll and discharge hopper, the coating mechanism includes the baffle, automatic telescopic link, distribution plate, the utility model discloses a need according to the nature of processing industrial sludge, automatic telescopic link telescopic drive baffle moves up and down, make the bottom of baffle and the top of lower filter tape keep appropriate distance, the sludge to be handled is transported to lower filter tape left side with lower filter tape right side transportation, when moving to coating mechanism position, distribution plate will sludge be shunted to both sides, and baffle will sludge be spread flat, and keep appropriate thickness, be favorable to the efficiency and quality of improving sludge dewatering.

The utility model discloses a sludge filter-pressing dehydration device, and relates to the technical field of sludge dehydration equipment. The sludge compressing and dewatering device comprises a homogenizing tank, a squeezing water tank, a blowback gas storage tank, a vacuum pump, a hot air unit and a double-diaphragm filter press, the homogenizing tank is connected with the double-diaphragm filter press through a filter press feeding pump, the squeezing water tank is connected with the double-diaphragm filter press through a squeezing pipeline, the double-diaphragm filter press is connected with a back flushing pipeline, a three-way pneumatic valve is arranged on the back flushing pipeline, a compressed air pipeline is arranged between a back flushing air storage tank and the three-way pneumatic valve, and the back flushing air storage tank is connected with the double-diaphragm filter press. The vacuum pump is connected with the double-diaphragm filter press through a vacuum pipeline, and the hot air unit is connected with the double-diaphragm filter press through a hot air outlet pipeline. According to the sludge filter-pressing dehydration device provided by the utility model, the hot air unit and the vacuum pump are arranged, and the moisture content of sludge is further reduced by virtue of contact between hot air and a filter-pressed sludge cake after filter pressing of the double-diaphragm filter press.

This utility model discloses a mechanical cold-press sludge treatment device, including a sludge mechanical cold-press deep dewatering system, a dried sludge incineration waste heat recovery system, and a flue gas purification system; it includes a wet sludge storage silo, a primary sludge conveying pump, a sludge conditioning machine, a secondary sludge conveying pump, a sludge distributor, a sludge cold press, a sludge feeder, a dry sludge storage silo, a sludge feeder, a sludge incinerator system, a waste heat boiler system, an SNCR in-furnace denitrification system, an electrostatic precipitator, a dry deacidification tower, an activated carbon injection system, a bag filter, a lime-gypsum wet deacidification tower, a low-temperature SCR denitrification system, an induced draft fan, and a chimney; this utility model achieves sludge dewatering and drying at room temperature through mechanical cold-pressing technology to reach the conditions for self-sustaining combustion, and then incinerates the dried sludge through a bubbling circulating fluidized bed incineration, fully recovering the heat released from sludge incineration for power generation or heating, thereby realizing the resource utilization of sludge.

This application provides a sludge thickening device and method for an integrated aeration sedimentation tank, comprising: a tank with a conical zone at the bottom; a sludge inlet pipe with a dosing pipe connected in parallel at the top, the bottom end of the sludge inlet pipe passing through the center of the tank; sludge distribution pipes arranged in a cross shape and connected to the sludge inlet pipe; supernatant collection pipes distributed in the upper and middle parts of the tank and connected in parallel to the outlet; and an ultrasonic sludge level gauge fixed on one side of the top surface of the tank. By providing a dosing pipe and a pipe mixer at the front end of the sludge inlet pipe, the flocculant can be fully mixed with the sludge water in the pipe. By providing a sludge distribution pipe at the tail end of the sludge inlet pipe, the sludge mixed with the flocculant is evenly distributed throughout the tank, which can improve the sludge dewatering efficiency. At the same time, the conical zone can increase the sludge concentration, and a self-cleaning filter screen is provided above the sludge distribution pipe to further filter the sludge and improve the sludge dewatering speed.

The invention provides sludge biochar as well as a preparation process and application thereof, and relates to the technical field of biochar materials. The invention relates to a preparation process of sludge biochar. The preparation process comprises the following steps: S1, conditioning sludge to obtain pretreated sludge; s2, dewatering the pretreated sludge to obtain sludge dewatered sludge cakes; s3, performing pyrolysis treatment on the sludge dewatered sludge cake to obtain the sludge biochar. The obtained sludge biochar is low in environmental risk and high in fertilizer efficiency.

This invention relates to the field of water pollution technology, specifically to a screw press sludge dewatering device for wastewater treatment. It includes a dewatering chamber, and further comprises: a drive shaft rotatably connected between the sludge inlet chamber and the sludge discharge hood; a variable-pitch screw shaft mounted on the drive shaft and located within both the sludge inlet chamber and the dewatering chamber; a sleeve movably fitted onto the drive shaft, with a back pressure plate fixed to its outer wall within the sludge discharge hood, the back pressure plate having a plurality of sludge discharge holes evenly spaced circumferentially; and a fixing ring fixed to the drive shaft and located outside the back pressure plate, with a plug corresponding to each sludge discharge hole fixed on the side of the fixing ring closest to the back pressure plate. This invention, by configuring the sleeve, back pressure plate, sludge discharge holes, fixing ring, plugs, and axial movement mechanism, allows switching between two sludge discharge modes according to sludge characteristics, achieving efficient adaptability of the equipment to different operating conditions.

The utility model relates to the field of sludge treatment, and discloses a sludge dewatering treatment device which comprises hanging brackets, the front ends and the rear ends of the hanging brackets extend downwards, a first cross rod is fixedly connected between the bottom ends of the front sides of the two hanging brackets, a second cross rod is fixedly connected between the bottom ends of the rear sides of the two hanging brackets, and the left end and the right end of the first cross rod extend downwards. Motors are fixedly installed at the bottom ends of the left side and the right side of the first transverse rod, output shafts of the two motors are opposite, the opposite ends of the output shafts of the two motors are fixedly connected with first rotating shafts, the outer walls of the two first rotating shafts are fixedly sleeved with first belt wheels, the left end and the right end of the second transverse rod extend downwards, and the opposite sides of the bottoms of the left side and the right side of the second transverse rod are fixedly connected with second rotating shafts; the outer walls of the two second rotating shafts are rotationally connected with second belt wheels, and a conveying belt is connected between the outer walls of the first belt wheel and the second belt wheel on the same left and right side in a sleeving mode. According to the utility model, the motor drives the conveying belt to move and the air cylinder drives the conveying belt to move, so that the sludge cloth bag is automatically conveyed and dewatered, and the working efficiency is greatly improved.

The utility model relates to the technical field of sludge dewatering, in particular to sludge dewatering equipment which comprises a movable bottom plate, an outer tank is arranged above the top end of the outer wall of the movable bottom plate, dewatering components for dewatering sludge are arranged in the outer tank and on one side of the outer tank, and each dewatering component comprises a hydraulic telescopic column and an inner tank. The hydraulic telescopic column is arranged at the top end of the outer wall of the movable bottom plate and located on one side of the outer tank, and the inner tank is arranged in the hydraulic telescopic column. In the sludge dewatering device, personnel can conveniently transfer the device through the arranged movable wheels, and during dewatering, the personnel can pump sludge into the inner tank through a water pump; then, sludge can be quickly dewatered through extrusion of the upper movable pressing block and rotation of the inner tank, personnel only need to take out the filter cloth from the inner tank to clean the sludge subsequently, and in the mode, the personnel can move the device as required, so that the device is not limited to a fixed position.

The invention discloses low-energy-consumption municipal sludge dehydration and pyrolysis integrated equipment. The equipment comprises a sludge crushing mechanism, a sludge pulsation dehydration mechanism, a sludge vacuum dehydration mechanism and a sludge pyrolysis mechanism which are connected in sequence, the sludge crushing mechanism comprises a sludge crushing containing barrel shell, a crushing main stirring shaft is rotationally connected into the sludge crushing containing barrel shell, and a plurality of sludge crushing rods are fixed to the crushing main stirring shaft; the sludge pulsation dewatering mechanism comprises a dewatering mechanism containing box, an extrusion dewatering input pipe and an extrusion dewatering output pipe which are coaxially arranged are fixed to the left end and the right end of the dewatering mechanism containing box respectively, and a flexible pulsation dewatering pipe is arranged between the extrusion dewatering input pipe and the extrusion dewatering output pipe; the equipment has the core advantages of integrated integration, low-energy-consumption design, efficient treatment, precise control, environmental protection and reliability, the whole treatment process can be seamlessly joined, the problems of sludge scattering, secondary pollution and moisture content rising in traditional segmented treatment are avoided, and the transfer energy consumption and the labor cost are reduced.

The invention relates to the technical field of water treatment, in particular to a sludge dewatering agent preparing and adding system which comprises a tank body, a water inlet pipe and a water outlet pipe. The jacket is arranged on the outer side of the tank body, and a closed cavity is formed between the jacket and the tank body; the feeding device is arranged at the top of the tank body; the jet head is arranged on the inner wall of the tank body; the jet head is communicated with the closed cavity; the stirring device comprises a driving mechanism, a dispersing disc and a stirring rod; the driving mechanism is fixedly arranged at the top of the tank body; a driving shaft of the driving mechanism extends into the tank body; the top of the dispersion disc is of a circular truncated cone structure; diversion trenches are uniformly distributed on the inclined surface of the circular truncated cone structure; the diversion trench extends along the generatrix of the circular truncated cone structure; the dispersing disc is sleeved on the driving shaft, and the stirring rod is fixedly arranged at the bottom of the dispersing disc; the aeration device is arranged at the bottom of the inner side of the tank body; and the aeration device is communicated with the closed cavity. By adopting the chemical mixing device, the chemical mixing efficiency can be improved, the mixing uniformity and the chemical solution concentration stability are improved, and accurate chemical supply is guaranteed.

The present application relates to waste treatment and solidification technical field, disclose a kind of fly ash slag and sludge collaborative solidification treatment method, comprising the following steps: S1, raw material pretreatment: using centrifugal dehydrator fly ash is dewatered to moisture content is less than 10%, and by vibrating screen and jaw crusher fly ash and slag are treated to particle size is between 0.5-2 mm;Using belt filter press sludge is dewatered to moisture content is less than 30%, then in hot air drying furnace it is dried to moisture content is less than 10%;S2, raw material mixing: after pretreatment fly ash, slag and sludge are mixed according to set mass ratio;S3, add solidification agent: solidification agent is added to mixture, and is uniformly stirred.By optimizing proportioning and selecting suitable solidification agent, the problem of insufficient stability of solidified body and incomplete sealing of harmful substances is solved, and by raw material treatment, adding solidification agent and solidification agent optimization, the problem of poor heavy metal sealing effect and high processing cost is solved.

The invention relates to a method for improving the dewatering performance of organic sludge by using a polyether demulsifier, and belongs to the technical field of municipal sludge treatment. The epoxyethane / epoxypropane block polyether is utilized to effectively destroy a stable oil-water emulsification system in the organic sludge, reduce interfacial tension and promote water release, and the dehydration performance of the organic sludge is remarkably improved by destroying an oil-water interfacial film structure. By utilizing the method disclosed by the invention, the dehydration efficiency of the organic sludge can be remarkably improved, the capillary water absorption time of the sludge and the specific resistance of the sludge are remarkably reduced, the Zeta potential of the sludge becomes closer to a positive value, the median particle size of the sludge is remarkably improved, and the water content of a sludge cake is greatly reduced; the method is easy and convenient to operate, existing dehydration equipment can be directly utilized, and extra investment is not needed; the adding proportion of the demulsifier can be optimized according to actual sludge characteristics, so that the medicament cost is saved; the method provided by the invention provides an economic and efficient technical scheme for organic sludge treatment and disposal, and sludge reduction and recycling can be promoted.

The invention provides a low-carbon dehydration treatment method for high-organic-matter sludge, and belongs to the technical field of sludge treatment. A low-carbon dehydration treatment method for high-organic-matter sludge comprises the following steps that food wastewater sludge is fed into a conditioning tank, a ferric chloride solution is added, the mass of FeCl3 accounts for 3.3%-7.0% of the mass of absolute dry sludge, and a mud cake is obtained after stirring, standing and filter pressing are conducted. According to the method, concentration is canceled, lime and PAM are not added, sludge self-flocculation is used in cooperation with low-dosage ferric chloride conditioning, the treatment time is shortened to 2.5 hours from 4 hours or above, the dosage of ferric chloride is reduced by about 50%, the efficiency is remarkably improved, the cost is reduced, and meanwhile the treatment cost is reduced. The problems that the pH value of a mud cake is too high, the calorific value is reduced, and the follow-up disposal approach is limited due to addition of lime are thoroughly avoided, and efficient, low-carbon and low-cost collaborative optimization of sludge dewatering and recycling is achieved.

The invention discloses filter press sludge extrusion supercharging equipment, and belongs to the technical field of sludge extrusion, the filter press sludge extrusion supercharging equipment comprises a supporting frame, a feeding assembly is arranged on the inner side of the supporting frame and is used for conveying sludge to a filter press, a first feeding unit is arranged on the lower side of the feeding assembly, and a second feeding unit is arranged on the lower side of the feeding assembly. A first feeding unit is arranged on the lower side of the first feeding unit and used for conveying the conveyed sludge to an extrusion position, a second feeding unit is arranged on the lower side of the first feeding unit and used for extruding the sludge through cooperation with the first feeding unit, and a sludge extrusion pressurization assembly is arranged on one side of the second feeding unit and used for pressurizing the sludge through cooperation with the second feeding unit. The device is used for pressurizing sludge during extrusion, dynamic self-adaptive adjustment of the extrusion force is achieved through the sludge extrusion pressurizing assembly, the extrusion gap can be automatically adjusted according to the sludge thickness and the stress condition, the sludge is evenly and stably stressed in the extrusion process, and the problem of insufficient extrusion or excessive extrusion is effectively avoided; the sludge dewatering effect is obviously improved.

The invention relates to a sludge dewatering intelligent temperature control system and method applied to the technical field of sludge treatment. The system is composed of a multi-mode sensing layer, a decision control center, a PCM energy management module and an integrated execution layer. The multi-mode sensing layer is used for collecting sludge characteristics, process energy and mud cake water content parameters in real time; the decision control center runs an XGBoost and MPC deep fusion algorithm, an XGBoost module generates initial process parameters according to sludge characteristics and dynamically corrects based on PCM residual heat capacity, and an MPC module performs rolling optimization by using a global objective function and outputting a synchronous cooperative control instruction by using a sludge-PCM coupling model; the PCM energy management module realizes heat energy storage and efficient utilization through a shell and tube type energy storage heat exchanger and a cascade waste heat recovery loop; and the integrated execution layer accurately executes the instruction and cooperatively completes the dehydration process. The problems that a traditional system is passive in control and low in energy efficiency are solved, and accurate, efficient and stable operation of the dehydration process is achieved.

The invention provides a method and a device for dehydration consolidation and directional migration of sludge containing heavy metals, belongs to the technical field of electric consolidation and heavy metal migration, and solves the problems of low sludge dehydration efficiency, unknown heavy metal migration mechanism and poor removal effect in the prior art. The method comprises the following steps: filling a reaction device with sludge containing heavy metals; graphite electrode plates are arranged at the two ends, and filter paper and a permeable stone isolation layer are laid between the electrodes and the sludge; and applying 0.5-2.0 V / cm direct-current voltage gradient for 12-72 hours, maintaining the environment temperature of 25 + / -2 DEG C, driving pore water to migrate to a cathode through electroosmotic flow, dehydrating and solidifying, and meanwhile, enabling heavy metal cations to migrate directionally by utilizing an electrophoresis effect. The matching device comprises an organic glass box body, an adjustable graphite electrode and a current detection and temperature control system. The sludge dewatering efficiency is effectively improved, the method has wide application prospects in the fields of river sludge treatment, polluted site remediation and the like, and a new technical approach is provided for solving the problem of heavy metal polluted sludge treatment.

The utility model relates to a filter cloth module for dewatering activated sludge. The filter cloth module comprises a filter cloth piece arranged on a rack, an upper winding roller and a lower winding roller are arranged on the rack; the filter cloth piece comprises upper-layer filter cloth A and lower-layer filter cloth B which are in one-way connection; the filter cloth piece is arranged between the upper winding roller and the lower winding roller; the upper winding roller and the lower winding roller are arranged up and down; a dehydration station is arranged on the rack; at the dewatering station, the lower surface of the upper-layer filter cloth A and the upper surface of the lower-layer filter cloth B are in contact with sludge at the same time; the device is reasonable in design, compact in structure and convenient to use.

The utility model discloses an activated sludge dewatering device which comprises a cyclone separator, an ejector, an air compressor, a laminated spiral sludge dewatering machine and a waste water tank, the laminated spiral sludge dewatering machine is fixed to the top of the waste water tank, and a drainage pipe on the lower side of the laminated spiral sludge dewatering machine is communicated with the waste water tank; a liquid outlet of the flocculation cylinder is communicated with a feeding hole of the laminated spiral sludge dewatering machine; the top of the cyclone separator is provided with a sludge inlet and an overflow port communicated with the wastewater tank, the bottom of the cyclone separator is provided with an underflow port, an exhaust port of the air compressor is communicated with an air inlet of the ejector, an ejection port of the ejector is communicated with a liquid inlet pipe of the flocculation cylinder, and two negative pressure ports of the ejector are respectively communicated with the underflow port of the cyclone separator and the medicament tank. The cyclone separator and the laminated spiral sludge dewatering machine are combined for use, fine sand is continuously removed, activated sludge is recycled, and the problems of pipeline silting, aeration equipment abrasion, sludge dewatering equipment abrasion and the like caused by the fine sand are solved.