3608results about "Sludge treatment" patented technology

A filter press includes a fabric stacking device, a filter press frame assembly, and a filter press device. The filter press frame assembly includes a filter press frame and a base plate. The filter press device includes a base, a main hydraulic cylinder, and a pressure plate. The fabric stacking mechanism includes a frame, a filter cloth operating assembly, a sludge discharge mechanism, a sludge separating and pressing mechanism, a pressing roller, and a fabric stacking and feeding mechanism. The filter cloth operating assembly includes a cloth winding mechanism, a winding and measuring mechanism, and a filter cloth correction mechanism. The cloth winding mechanism includes a cloth winding roller that can move along its own axial direction and rotate around its own axis. The cloth winding roller adjusts its position by moving along its own axial direction according to the detection result of the winding and measuring mechanism. The sludge separating and pressing mechanism includes a pressing plate with a horizontally arranged pressing part. The setting height of the pressing roller is adjustable, and the axis of the pressing roller is perpendicular to the moving direction of the lower filter cloth. The fabric stacking and feeding mechanism is located at one end of the frame and is used to transport sludge bags formed by the upper and lower filter cloths wrapping sludge. This invention can automatically correct the filter cloth deviation, keep the filter cloth flat, and prevent sludge leakage.

The invention relates to the technical field of sewage treatment, and discloses spodumene flotation tailing water treatment equipment which comprises a plate-and-frame filter press and a feed flow real-time control system electrically connected with the plate-and-frame filter press. According to the system, a slurry characteristic coefficient, a power supply coefficient, a dynamic matching coefficient and a filter cloth state coefficient are respectively obtained in real time through a slurry state evaluation module, a power evaluation module, a process dynamic matching module and a filter cloth state evaluation module. And dynamically calculating and adjusting the target feeding flow by the feeding flow adjusting and controlling model according to the coefficients. According to the invention, through multi-parameter collaborative sensing and intelligent matching, the dynamic adaptation of the feed flow, the slurry characteristics, power supply and the state of the filter cloth is realized, the technical problems of poor adaptability, control lag, easy damage of the filter cloth and high energy consumption of the traditional plate-and-frame filter press under complex working conditions are effectively solved, and the treatment efficiency and the operation stability are remarkably improved.

The utility model provides a cloth pressing assembly and water-containing material dewatering equipment, the cloth pressing assembly comprises a pressing rod which is used for pressing filter cloth and extends along the horizontal direction, and an angle is formed between the length direction of the pressing rod and the laying direction of the filter cloth; the limiting component is at least arranged on the side, facing the laying direction of the filter cloth, of the pressing rod, and the limiting component is attached to the pressing rod. According to the utility model, through the arrangement of the limiting component, when the pressing rod is subjected to the horizontal acting force of the filter cloth, the pressing rod can be propped through the limiting component, particularly, one side, facing the laying direction of the filter cloth, of the pressing rod is propped, so that the pressing rod is prevented from displacing along the horizontal direction, and the pressing effect of the pressing rod on the filter cloth is ensured.

The utility model relates to the technical field of sludge treatment, in particular to industrial wastewater sludge treatment equipment, which comprises an equipment main body, a dewatering box, a water pump arranged on the side surface of the dewatering box, and a water tank, the dewatering assembly comprises a filter screen plate arranged on the inner wall of the dewatering box in a sliding mode and a hydraulic rod fixedly arranged on the inner bottom wall of the dewatering box, the telescopic end of the hydraulic rod is fixedly connected with the lower surface of the filter screen plate, and a sealing cover plate is arranged on the upper surface of the dewatering box. According to the sludge dewatering device, the sludge pushing assembly and the triggering assembly are arranged, after the filter screen plate moves upwards to extrude and dewater sludge, dewatered sludge blocks can be driven to be automatically moved out of the dewatering box, and finally the driving motor is started to automatically and fully discharge the sludge blocks; further, the equipment breaks through the mode of dewatering the sludge by extruding from top to bottom in the prior art, and the defect that intercepted sludge blocks cannot be quickly discharged in the prior art is effectively overcome.

The invention discloses a desilting robot with dewatering and packaging functions, and relates to the field of mud-water separation devices.The desilting robot comprises a frame, the frame can be installed on self-propelled transportation equipment and is fixedly provided with a first mud-water bin with an upper opening and a second mud-water bin of a box structure, and an installation box is installed above the first mud-water bin; a vibration box is installed in the vibration box through an elastic assembly, a first filter plate and a second filter plate which are used for repeatedly filtering muddy water are arranged in the vibration box in a staggered mode, the extrusion bin is installed at the end, where mud blocks fall, of the vibration box, and an extrusion mechanism used for extruding the mud blocks is arranged in the extrusion bin; and a water return port is formed in the top end of the first muddy water bin towards the bottom end of the extrusion bin. The dewatering efficiency is remarkably improved, the water content of mud blocks is reduced, the dewatered mud blocks are extruded to further reduce the water content of the mud blocks, discharged mud cakes can reach the standard of direct bagging and transportation, and leakage pollution in the transportation process is effectively avoided.

The invention provides a control method of a multistage sludge screening device. The method is applied to a multi-stage sludge screening device, the multi-stage sludge screening device is used for screening sludge of a sewage treatment unit, and the multi-stage sludge screening device comprises a first number of first cyclones, a second number of second cyclones and a third number of third cyclones, the specification parameters of the first swirler, the second swirler and the third swirler are gradually reduced; the method comprises the following steps: acquiring real-time performance parameters of sludge of a sewage treatment unit; and controlling partial opening or simultaneous opening of the first pipeline, the second pipeline and the fourth pipeline based on the real-time performance parameters. According to the control method of the multistage sludge screening device, targeted improvement is carried out according to the actual sludge condition of the sludge treatment unit, and the sewage treatment efficiency is effectively improved.

The invention discloses a rapid tubular induced crystallization reaction process and device for fluorine-containing wastewater, the device comprises a tubular reactor, a crystal sedimentation tank and crystal dehydration equipment, the fluorine-containing wastewater is pumped from a water inlet at one end of the tubular reactor, calcium liquid is pumped from dosing ports at intervals on the tubular reactor along the flowing direction of the wastewater at a set flow rate, and the calcium liquid is pumped from the dosing ports at intervals along the flowing direction of the wastewater; the fluorine-containing wastewater reacts with a calcium agent in the tubular reactor to generate calcium fluoride crystals with the particle size range of 10-80 microns, a mixture is discharged into a crystal sedimentation tank through a water outlet in the other end of the tubular reactor, clear water is discharged from a water outlet in the upper portion of the crystal sedimentation tank, and crystal slurry sinking to the bottom of the crystal sedimentation tank is pumped into a cyclone separator through a crystal discharging pump; large-particle crystals discharged from an outlet in the lower end of the cyclone separator are collected by a crystal collection pool and are regularly discharged into crystal dehydration equipment for dehydration, small-particle crystals discharged from an outlet in the upper end of the cyclone separator flow back to the water inlet end of the tubular reactor, the reactor is small in size and low in investment, and the stability of the calcium fluoride crystal product quality is guaranteed.

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 self-adaptive adjustment magnetic separation-membrane filtration coupling sewage treatment system and a self-adaptive adjustment magnetic separation-membrane filtration coupling sewage treatment method. The system comprises a pretreatment unit, a magnetic separation core unit, a self-adaptive intermediate buffer unit, a membrane filtration unit and a sludge treatment unit which are communicated in sequence. The core of the system is that a plurality of on-line sensors are linked through a central control system, water quality parameters are monitored in real time, the adding amount of magnetic powder and a coagulant, the rotating speed of a stirrer, the membrane flux, the backwashing period and a cleaning program are adjusted in a self-adaptive mode, and intelligent cooperation and accurate regulation and control of magnetic separation and membrane filtration processes are achieved. According to the invention, the problems of easy membrane pollution, high magnetic powder consumption, high operation cost and dependence on manual operation in the traditional process are effectively solved, the service life of the membrane is obviously prolonged, the operation and maintenance cost is reduced, and the effluent quality is stable and meets the high-standard discharge or reuse requirement.

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.

A reciprocating lamination spiral solid-liquid separator is provided, including: a support frame, a filter chamber, a spiral shaft and a driving device. The filter chamber is assembled with the support frame. The spiral shaft is mounted on the support frame and passes through the filter chamber. The driving device is mounted on the support frame. Two ends of the filter chamber respectively have a feed port and a discharge channel. The filter chamber includes a first closed movable ring-piece assembly and a second closed ring-piece assembly having a motion state that is inconsistent with that of the first closed movable ring-piece assembly. The first and second closed ring-piece assemblies are stacked alternately to form the filter chamber, and a gasket is disposed between two adjacent closed ring-pieces of one of the closed ring-piece assemblies.

A dual-channel switching system for a wastewater treatment plant, and an operation method. The double-channel switching system comprises a water intake box culvert in communication with both a dry-season treatment system and a rainy-season treatment system, wherein the dry-season treatment system comprises a coarse-fine combined screen connected to a grit chamber, a membrane screen device, an AAO combined tank, an MER reaction tank and a first ultraviolet disinfection channel in sequence; the rainy-season treatment system comprises a self-cleaning screen connected to a flow control valve, a combined storage tank, a magnetic precipitation system, a fiber rotary disc filter and a second ultraviolet disinfection channel in sequence; the water intake box culvert is provided with a liquid level sensor, a sludge concentration sensor, and a flow rate sensor; a switching valve is provided at the front end of the self-cleaning screen; and the liquid level sensor, the sludge concentration sensor and the flow rate sensor are connected to a control unit In the present invention, a wastewater treatment path can be automatically adjusted on the basis of changes in seasons and water volumes, thereby effectively meeting wastewater treatment requirements in a dry season and a rainy season.

The utility model provides a sludge deep dehydration filter press convenient for replacing a filter plate, which belongs to the technical field of filter presses and comprises a rack, a filter pressing component and a material taking component, a mounting plate is fixedly mounted at one end of the rack, and a thrust plate is mounted at the tail end of the rack; when the filter plate is dismounted, the mounting seat is controlled to slide on the surface of the transverse plate at the top of the supporting leg, the mounting seat slides to drive the electric push rod mounted on the surface to move, and the top block mounted at the telescopic end of the electric push rod corresponds to the sliding blocks mounted on the two sides of the filter plate frame; the top block drives the slide block to rise from the slide rail, so that the filter plate frame is taken out from the slide rail, and the filter plate in the filter plate frame is convenient to replace and clean.

The invention discloses pond bottom sludge separation treatment equipment based on aquaculture, and relates to the technical field of aquaculture, the pond bottom sludge separation treatment equipment comprises a supporting mechanism, and is characterized in that two longitudinally-arranged support assemblies are fixedly connected to the top end face of the supporting mechanism in a linear array mode, and a supporting frame is rotationally connected to the inner sides of the support assemblies; the side plate assemblies are fixedly connected to the inner sides of the supporting frames, efficient separation of water in sludge is achieved through the extrusion effect of the spiral assemblies and the filtering function of the seepage mechanisms, the water content of the separated sludge is remarkably reduced, and compared with traditional equipment only pumping silt, the difficulty and cost of follow-up dehydration, stacking or resource utilization are greatly reduced; meanwhile, the risk of secondary pollution caused by sewage discharge is reduced.

The invention provides a soil remediation modifier, a soil remediation method and a soil maintenance method, and belongs to the technical field of soil remediation. The soil conditioner is prepared from the following raw materials in parts by weight: 40-50 parts of modified sludge, 10-15 parts of humic acid, 5-10 parts of a bioactive component, 10-15 parts of an inorganic component and 10-15 parts of an organic component. The soil remediation agent prepared by the invention not only can increase the total porosity of soil, improve soil water stability granules and soil structure, but also can improve soil fertility, improve soil pH value and passivate heavy metal ions, so that the prepared remediated soil can adapt to plant growth requirements, and meanwhile, the sludge and the traditional Chinese medicine residues are subjected to resource utilization, waste is turned into wealth, and the cost is reduced. Wide application prospects are realized.

The invention discloses water area sludge treatment equipment which comprises an equipment body, a treatment box is arranged above the equipment body, a concave cavity is formed below the treatment box, a sludge pressing and holding mechanism is arranged in the treatment box, a feeding opening is formed in the upper portion of the sludge pressing and holding mechanism, and two sets of upper carrying plates are symmetrically arranged below the feeding opening; a sludge injection opening communicated with the feeding opening is formed in the surface of the equipment body, the sludge pressing and holding mechanism comprises a movable pressing plate and a fixed plate, the fixed plate is fixed to the inner wall of the treatment box through a connecting column, a plurality of elastic telescopic movable frames are arranged between the movable pressing plate and the fixed plate, and optical shafts are arranged at the four corners among the movable pressing plate, the fixed plate and the movable frames. The movable pressing plate and the movable frame body can translate along the optical axis, an extrusion rod is arranged on the outer side of the movable pressing plate, and the extrusion rod extends outwards at the through hole; when the water area sludge treatment equipment is used, sludge-water separation can be effectively achieved, separated water liquid can be collected and discharged, mud cakes can be compressed and recycled, and the water area sludge treatment equipment is suitable for application and popularization.

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 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 belongs to the technical field of sewage and sludge treatment, and discloses a sedimentation tank desilting construction method for domestic sewage and coal cleaning plant sewage treatment. The problems that an existing desilting technology is low in efficiency and serious in pollution, and a pool body is damaged are solved. The method comprises the following steps: collecting data, combining a sonar technology to obtain sludge parameters of a sedimentation tank, and formulating a scheme; building a closed operation shed and mounting matched ventilation and purification equipment on a portal frame; adding a composite flocculant, and stirring to precipitate the sludge; discharging clean water; performing microwave pretreatment on the hardened sludge surface, and performing normal-pressure cleaning to form flowing slurry; pumping the flocculating constituent and the slurry, and carrying out gravity concentration and filter pressing dehydration to form a mud cake; a biological conditioner is sprayed after the sedimentation tank is cleaned, and secondary cleaning is conducted; checking and repairing the tank body and spraying a nano anti-corrosion coating; and dismounting the equipment and recovering the site after acceptance. The first-time dynamic microwave treatment is matched with normal-pressure cleaning, biochemical synergy and anti-corrosion technologies, so that the dredging efficiency is improved, the environmental pollution is reduced, and the service life of the pool body is prolonged.

The utility model discloses a sludge in-situ curing treatment device for river regulation construction, which comprises a main shaft provided with a protective sleeve, a pesticide spraying component arranged at the bottom of the protective sleeve, a plurality of groups of stirring devices arranged on the main shaft, sludge separating plates symmetrically arranged on adjacent stirring blades of the stirring devices, and sludge supporting plates arranged on the sludge separating plates and distributed oppositely. The mud separating plate and the mud supporting plate are distributed in a linear mode in the height direction of the main shaft, a medicine injection space is formed by the mud separating plate and the mud supporting plate, and the medicine spraying assembly is provided with a liquid medicine spray head matched with the medicine injection space. Sludge is divided by the sludge dividing plates welded on the stirring blades in the rotating direction of the stirring blades, then the sludge is supported by the sludge supporting plates, finally, a chemical injection space is formed behind the sludge supporting plates, the sludge is divided into a space at the position, and at the moment, a curing chemical is sprayed to the sludge space from the chemical spray head after passing through the corrugated pipe from the chemical inlet pipe; and the curing agent is sprayed deep in the sludge, so that the agent mixing effect is improved.

The utility model discloses a sludge filtering device, which belongs to the technical field of sludge treatment and comprises a water storage tank for storing filtered water, a filtering bin arranged on the water storage tank and communicated with the water storage tank, and a sludge pipe arranged on the filtering bin, communicated with the filtering bin and used for inputting sludge into the filtering bin, the drain pipe is arranged on the water storage tank and used for draining water in the water storage tank, and a filter structure used for filtering stone impurities in sludge is arranged in the filter bin. According to the sludge filtering device, sludge can be conveyed to the sludge filtering plate in the filtering bin through the sludge pipe, and the driving lever can be driven to repeatedly stir the sludge on the sludge filtering plate under the action of the motor, so that the flowing of the sludge is promoted, the sludge is filtered, and stone impurities in the sludge are prevented from abrading the linkage shaft and the conical spiral extrusion sheet part; the stability of the structure is improved, the service life of the structure is prolonged, and water is sprayed onto the sludge in the filter bin, so that the water can pass through the sludge filter plate more easily.

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment sediment collecting device which comprises a rack, a blow-off pipe is arranged above the rack, a water storage tank is fixed on the rack, a flocculus removing device is arranged on the rack between the blow-off pipe and the water storage tank, the flocculus removing device comprises a plurality of positioning shafts arranged on the rack, and the positioning shafts are arranged on the rack. A plurality of chain wheels are evenly fixed to the positioning shaft, the chain wheels at the corresponding positions of the positioning shaft are connected in a winding mode through chains, positioning blocks are evenly fixed to the chains, positioning rods are fixed to the positioning blocks, the positioning shaft is driven by a positioning motor to rotate, and a material collecting plate is further obliquely fixed to the portion, on one side of the wadding removing device, of the rack. A conveying device is further arranged on the portion, below the flocculus removing device, of the machine frame, the conveying device comprises conveying shafts arranged on the machine frame, the conveying shafts are driven by a conveying motor to rotate, and conveying rollers are fixed to the conveying shafts. The device can effectively prevent flocculent impurities from being discharged along with sewage after being cut off.

The invention discloses a resource utilization method of Fenton iron mud. According to the method, a citric acid-ascorbic acid composite solution is used for soaking Fenton iron mud, hydrothermal liquefaction is carried out in an inert reduction system, ferric iron is reduced into ferrous iron, and a ferrous iron solution generated after reaction can directly form a Fenton reagent with hydrogen peroxide to be reused for Fenton reaction. By the adoption of the method, iron can be completely recycled, resource utilization of the Fenton iron mud is facilitated, the mass of the treated filter residues is only 1 / 10 of that of the iron mud, and the disposal amount of hazardous waste is effectively reduced.

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 utility model relates to a device for continuously reciprocating multi-position folding and filter-pressing sludge by using filter cloth. The device comprises a feeding system, a pre-pressing system, a folding system, a filter-pressing system and a cleaning system, the feeding system, the pre-pressing system and the folding system are distributed from inside to outside to form at least two sludge pre-treatment systems, and every two sludge pre-treatment systems are symmetrically distributed to form a folding unit; the two sludge pre-treatment systems of each folding unit are connected through continuous filter cloth, the pre-pressing system and the folding system of each sludge pre-treatment system are both connected with the filter cloth, and the feeding system is located above the filter cloth; the two filter pressing systems correspond to the two folding systems of the folding unit respectively; the cleaning system can be used for continuously cleaning the filter cloth. The device disclosed by the utility model can realize the process of continuously folding the filter cloth back and forth in two folding systems and continuously treating sludge, and belongs to the technical field of dehydration of sludge, coal slime, food and the like.

The invention relates to a method and a device for preparing piezoelectric catalytic degradation PFAS nano barium titanate from sludge graded extracts, and belongs to the technical field of sludge utilization environments. The method comprises the following steps: uniformly mixing fresh sludge and modified cation resin, and extracting a cation resin extracting solution to obtain the cation resin extracting solution and cation sludge; uniformly mixing the cation mud and the modified anion resin, and extracting an anion resin extracting solution to obtain the anion resin extracting solution and the cation mud; mixing the sludge and alkali for reaction to obtain an alkali extracting solution and extraction residues; mixing barium salt with the cation resin extracting solution to obtain a barium complexing solution, and mixing titanium salt with the anion resin extracting solution to obtain a titanium complexing solution; and mixing the barium complexing solution with the same volume of the alkali extracting solution, then adding the titanium complexing solution with the same molar ratio, heating, drying and calcining to obtain the piezoelectric catalytic degradation PFAS nano barium titanate. According to the method, multi-stage extraction can be carried out according to application property requirements, extraction is sufficient, the comprehensive utilization rate of sludge is high, dispersity is good, the particle size is small, piezoelectric catalysis performance is high, and synthesis cost is low.

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 invention discloses a control method based on coal dressing intelligent filter pressing, and belongs to the technical field of coal dressing, and the control method specifically comprises the following steps: pre-grading original coal slime through an intelligent multi-stage cyclone, collecting coal slime property data of each section in real time by using online detection equipment, and transmitting the coal slime property data to an intelligent control system; through a dual optimization mechanism, coal slime properties and filter pressing grades are matched, and optimal filter pressing parameters are generated; a multi-machine cooperative control strategy is adopted to drive a three-stage filter press to operate step by step, a virtual model of the filter press is constructed through real-time working state parameters of a sensor, and an abnormal state is dynamically corrected in combination with the real-time working state parameters and a fuzzy PID algorithm; carrying out resource processing on a filter cake generated by filter pressing, and meanwhile, carrying out grading treatment on filtrate; intelligent control over the whole process of coal slime grading filter pressing is achieved, and the coal slime treatment efficiency and the resource utilization rate are improved.

The invention discloses a rolling type efficient sludge solid-liquid separation device which comprises a box body, an inlet cover in threaded connection with the top of the box body, a base fixedly connected with the bottom of the box body, a drainage groove formed in the right side of the box body, a drainage pipe fixedly connected with the right side of the box body, a motor box fixedly connected with the front face of the inner wall of the inlet cover, and a motor fixedly connected with the front face of the inner wall of the motor box. One end of the motor is fixedly connected with a rotating shaft, the other end of the rotating shaft penetrates through the front face of the box body and is rotationally connected with the back face of the inner wall of the box body through a bearing, a sewage discharging groove is formed in the base, the interior of the sewage discharging groove communicates with the interior of the box body, the left side of the base is in threaded connection with an outlet cover, and a sludge stirring and separating mechanism is arranged in the box body. By arranging the sludge stirring and separating mechanism, integration of preliminary and fine separation and filtration of sludge is achieved, efficient solid-liquid automatic separation of the sludge and internal water is achieved, and the problem that a large amount of residues still remain in the filtered water is solved.