1401 results about "Sludge dewatering" patented technology

The utility model relates to the technical field of sludge dewatering, and discloses a pump-assisted pressurizing stacked screw type sludge dewatering machine, which comprises a dewatering machine main body and a flocculation box, the dewatering machine main body comprises a mounting rack, a mounting frame is fixedly mounted on the upper side of the mounting rack, a filter cartridge is fixedly mounted in the mounting frame, a rotating shaft is rotatably mounted in the mounting frame, and the flocculation box is fixedly mounted in the mounting frame. Spiral propelling blades are fixedly mounted on the surface of the rotating shaft, and a dewatering motor is fixedly mounted at the end of the mounting frame. According to the sludge dewatering machine, the pressure box is arranged at the end of the filter cartridge, the piston is arranged in the pressure box, sewage is pumped and injected into the filter cartridge through reciprocating motion of the piston, the internal pressure of the filter cartridge is increased, when the rotating shaft rotates, the spiral propelling blade and the rotating disc are driven to rotate synchronously, and the spiral propelling blade rotates to extrude and dewater sludge; the rotating disc rotates and acts on the piston through transmission of the transmission rod, so that the pump-assisted pressurizing dehydration effect is achieved, and the sludge dehydration processing efficiency is greatly improved.

The invention relates to a low-energy-consumption sludge high-dryness dehydration low-temperature drying system and a control method thereof. A hydraulic high-pressure feeding pump is used for conveying conditioned sludge from a sludge tank to an ultrahigh-pressure double-diaphragm low-temperature drying all-in-one machine; in the ultrahigh-pressure double-diaphragm low-temperature drying all-in-one machine, heat energy is provided for the ultrahigh-pressure double-diaphragm low-temperature drying all-in-one machine through an electromagnetic heating device; meanwhile, a vacuum pump is started, water vapor generated in the dehydration process is pumped out by the vacuum pump and cooled through a condenser, and heat is recycled; and the dehydrated dry sludge is conveyed to a dry material bin for storage through a screw conveyer. The energy consumption can be obviously reduced, and the sludge dewatering efficiency can be improved; meanwhile, through automatic control and an optimized operation mode, the stability and continuity of sludge treatment are improved, manual intervention is reduced, and the treatment effect and the operation safety are ensured.

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 belongs to the field of sludge treatment, and discloses a method for improving the dewatering performance of sludge through composite pretreatment, which comprises the following steps: (1) adding high-valence metal salt or high-valence metal salt polymer into water-containing sludge to be dewatered, mixing and stirring to stabilize the pH value of the system at 3-5; (2) adding transition metal salt into the system and stirring; the use amount of the transition metal salt is 2-15% of the weight of the dry basis of the sludge; (3) adding an oxidizing agent into the system, stirring, and carrying out filter pressing and dehydration to obtain a dehydrated mud cake; the using amount of the oxidizing agent is 2-30% of the weight of the dry basis of the sludge. According to the method, the flow design of the treatment method is improved, the pH value of the sludge is reduced by using the high-valence metal salt, then the sludge is conditioned by using the transition metal salt and the oxidizing agent, and meanwhile, the dosage of the oxidizing agent is controlled, so that the problems of too high cost and excessive oxidation caused by separate Fenton oxidation conditioning or ultrasonic-acidification-Fenton combined conditioning can be solved.

The invention discloses a health assessment and life estimation method for a sludge dewatering machine, and belongs to the field of equipment health assessment and prediction. Comprising the following steps: acquiring operating data such as temperature and vibration of each key part of equipment and working data such as cumulative processing amount from a sludge dewatering machine monitoring system, and extracting a total feature set of the operating data after preprocessing by a one-dimensional convolutional neural network and a stacked denoising auto-encoder; and then inputting a scoring model formed by two self-organizing mapping neural networks to carry out health scoring. And merging the total feature set and the working data, inputting the merged total feature set and working data into a feed-forward neural network life estimation model based on genetic algorithm optimization, and finally carrying out residual life estimation by adopting an FNN (Feedforward Neural Network) of an optimal hyper-parameter combination. The influence of multiple parameters on the health state of the sludge dewatering machine is considered, and the evaluation accuracy is improved; the intelligent level of equipment management of a current sewage treatment plant can be effectively improved, the problems of under-maintenance, over-maintenance and the like are avoided, and the purposes of reducing cost and improving efficiency are achieved.

The present invention discloses a high-drying high-pressure belt-type sludge dewatering machine, comprising a flocculation tank, a concentrated primary filter belt device, a skeleton agent automatic feeding device, a modifier feeding device, a mixing device, a mud homogenizing device, and a high-pressure filter belt device; the mixing device comprises a mixing bin, a mixing and stirring mechanism and a modifier spraying assembly arranged in the mixing bin, the sludge sent out of the outlet of the sludge primary filter belt assembly is fed into the sludge input port through a sludge input pipe, and the skeleton agent automatic feeding device inputs the skeleton agent into the mixing bin through the sludge input port. The sludge dewatering machine of the present invention greatly reduces the moisture content of the sludge output, and can achieve full-automatic continuous operation, integrating all the processing processes into one device, greatly reducing the occupied space, and simplifying the operation process.

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

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

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

The invention discloses a method for synergistically hydro-thermally treating sludge based on tea residue and organic acid, which comprises the following steps: mixing sludge with organic acid and tea residue, and performing hydro-thermal treatment and dehydration treatment on the obtained mixed slurry to obtain filtrate and a mud cake. According to the method for carrying out the synergistic hydrothermal treatment on the sludge based on the tea residues and the organic acid, the hydrothermal reaction temperature can be remarkably reduced under the synergistic effect of the tea residues and the organic acid, meanwhile, the sludge is subjected to the synergistic hydrothermal treatment through the organic acid and the tea residues, the dehydration performance of the sludge can be effectively improved, and meanwhile generation of nondegradable organic matter such as melanoidins can be effectively inhibited; therefore, efficient, environment-friendly, recycling and low-cost treatment of the sludge can be realized by fully utilizing the characteristics of the organic acid and the tea residues and cooperating with a hydrothermal treatment technology, and the method has the advantages of low reaction temperature, high treatment efficiency, low energy consumption, good dehydration effect, greenness, environmental protection and the like; wide application prospects and popularization values are realized.

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

The invention relates to the technical field of sludge treatment, in particular to a sludge dewatering device and a sludge dewatering method, and solves the problems that in the prior art, sludge is inconvenient to discharge after being dewatered, and continuous work cannot be carried out, the dewatering device comprises a dewatering cylinder, a cover plate is movably connected to the dewatering cylinder, and the cover plate corresponds to an opening of the dewatering cylinder in position; a filter pressing assembly is arranged in the dewatering cylinder; the filter pressing assembly comprises a filter plate movably arranged in the dewatering cylinder, the filter plate and the cover plate form a sludge chamber, and a mud block crushing assembly is arranged in the sludge chamber. The sludge dewatering device has the beneficial effects that after sludge is dewatered in the sludge chamber, dewatered sludge blocks are crushed through the sludge block crushing assembly, so that the sludge blocks are loosened, and the sludge blocks are convenient to clean; after the cover plate is separated from the dewatering cylinder, crushed mud blocks can be pushed out of the dewatering cylinder through the movement of the filter plate, so that the dewatered mud blocks are discharged, the sludge dewatering device can perform continuous sludge dewatering work, and the sludge dewatering efficiency is improved.

The invention relates to the technical field of sludge treatment, and particularly discloses a vehicle-mounted mobile integrated sludge dewatering and filter pressing device which comprises a filter press main body, the plurality of filter pressing units are arranged on the filter press main body; the filter pressing unit comprises a filter plate, filter cloth, sliding frames and an adjusting mechanism; the sliding frames and the adjusting mechanism are uniformly distributed; the filter plate is mounted on the filter press main body, and two grooves are formed in the filter plate; the filter cloth is mounted on the filter plate, and the two grooves are covered with the filter cloth; the uniformly distributed sliding frames are arranged on the filter plate in a sliding manner, springs are mounted between the sliding frames and the filter plate, and the sliding frames are fixedly connected with the outer edge of the filter cloth; and the adjusting mechanism is arranged on the filter plate. The filter cloth is pulled to be tight and flat, separation of sludge impurities on the filter cloth is accelerated, the sizes of filter holes in the filter cloth are kept relatively uniform, and the uniform sludge dewatering effect of the filter cloth is guaranteed.

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

The invention relates to the technical field of sludge dewatering, and discloses sludge brick production equipment for hydrolytic carbonization treatment. Comprising an equipment main body, a feeding hole formed in the surface of the front end of the equipment main body and used for feeding sludge, and two racks fixedly connected to the left and right sides of the equipment main body respectively and used for ensuring normal sludge filter pressing of the device, the pushing assembly is installed at the top of the rack and used for pushing the mud plate to move, the two driving assemblies are installed on the two sides of the interior of the equipment body and used for controlling the filter pressing force of the device, a toothed plate is arranged in the equipment body and fixedly connected to the symmetrical faces of the two driving assemblies, and a plurality of filter pressing plates are arranged on the outer surface of the toothed plate. The filter pressing plate comprises a material removing assembly which is arranged in the filter pressing plate, the material removing assembly is used for synchronously starting to assist the mud plate to fall when the filter pressing plate is moved to discharge the mud plate after filter pressing of the equipment main body is completed, and the device has the advantages that the discharging quality and the filter pressing efficiency of the device are improved, the manufacturing cost of the device is reduced, and the device is convenient to use by a user.

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

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

The utility model relates to the technical field of sludge dewatering, and discloses an efficient sludge dewatering device which comprises a box body, a dewatering barrel is arranged in the box body, the dewatering barrel is obliquely arranged and rotates in the box body, a plurality of filtering holes are formed in the surface of the dewatering barrel, and a rotating mechanism for rotating the dewatering barrel is arranged on the surface of the box body. A discharging box is installed at the higher end, close to the dewatering barrel, of the box body, a connecting box is arranged at the lower end, close to the dewatering barrel, of the box body, a discharging mechanism is arranged in the connecting box, a plurality of drainage pipes are installed on the surface of the box body, and a cleaning mechanism is arranged in the box body. According to the sludge dewatering device, through the arrangement of the dewatering barrel, when sludge is conveyed into the device, the sludge can be quickly rotated, so that a centrifugal effect is generated, water in the sludge can be separated, meanwhile, the inner wall of the dewatering barrel is cleaned, and the sludge is prevented from being adhered to the interior of the dewatering barrel.

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 utility model discloses a dense sludge regeneration system and relates to the technical field of sludge treatment. Comprising a sewage inlet, an anaerobic tank, an anoxic tank, an aerobic tank, a secondary sedimentation tank, a water outlet, a sludge densification regeneration device, a sludge concentration tank, a sludge dewatering room and a sludge pump room, the anaerobic tank, the anoxic tank and the aerobic tank are sequentially connected, the anaerobic tank is connected with the sewage inlet through a pretreatment device, and the aerobic tank is connected with an air blower room and the secondary sedimentation tank. The secondary sedimentation tank is connected with a water outlet and a sludge pump room, returned sludge of the sludge pump room is conveyed to the anaerobic tank, the sludge dense regeneration device is respectively connected with the sludge pump room, the anaerobic tank and the sludge concentration tank, and the sludge pump room is also connected with the sludge dewatering room through the sludge concentration tank. The device is reasonable in structural design, good in use effect, high in investment return, easy to integrate and high in practicability, can perform biological phosphorus removal and improve the settling ratio of activated sludge, and reduces the addition of chemical agents.

The invention relates to the technical field of sludge dewatering, and discloses a sewage plant sludge dewatering device which comprises a main machine base, an extrusion forming assembly is arranged on the outer wall of the main machine base, an inclined rod is fixedly assembled at the top of the main machine base, and a dewatering box is fixedly installed at the top of the inclined rod. A supporting frame is fixedly installed on the outer wall of one end of the dewatering box. A rotating motor can start to work by transmitting a signal through an electric control cabinet, so that a rotating rod can drive an extrusion roller I to rotate, a driven gear can drive an adjusting gear to rotate while rotating, and sludge can be subjected to secondary dehydration while an extrusion roller II and the extrusion roller I rotate inwards; the sludge dewatering device is simple in structure and convenient to operate, sludge can be extruded for forming in the dewatering process, the device can reduce the water content of the sludge from 80%-85% to 20% or below, deep dewatering of the sludge is achieved, the dewatering efficiency of the sludge is improved, and the overall environmental influence of sludge treatment is 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 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 aims to provide complete equipment for reducing the moisture content of entering muddy water of a sludge dewatering machine so as to solve the problem that the moisture content of a mud cake of an existing sludge dewatering machine exceeds the standard. The invention relates to complete equipment for reducing the moisture content of entering muddy water of a sludge dewatering machine, which is characterized in that a muddy water flocculation and concentration tank is designed and manufactured, the appearance is an upper cylinder and a lower cone, four flocculant inlets and a muddy water inlet are arranged at the upper and lower joints, the top of the cylinder is provided with an upper clear water overflow port, and the lower port of the cone is used for discharging mud; mud water and a flocculating agent are fully mixed through rotation, mud flocculation is promoted, and mud is pushed and scraped to be not blocked. According to the measurement and control part, a camera is installed on a tank, the fixed angle of the camera is adjusted to be aligned with mud-water interface identification scales on a transmission rod of the stirring mud scraper, an image of the camera is recognized through AI to distinguish a mud-water interface, data is fed back to a PLC to drive a mud water pump and a dosing pump, and the input amount of a flocculating agent is adjusted in time; dynamic balance of muddy water inlet and outlet and flocculant adding is kept.

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

The invention relates to the technical field of sludge dewatering treatment, in particular to a method for improving sludge dewatering performance through low-temperature hydrothermal coupling of a deep eutectic solvent, which comprises the following steps: putting a hydrogen bond donor and a hydrogen bond acceptor into a reactor, heating and stirring to obtain the deep eutectic solvent; taking sludge to be treated, adding the deep eutectic solvent, and stirring and mixing for reaction; and putting the sludge added with the deep eutectic solvent into a thermal hydrolysis reaction device with a stirring function, carrying out thermal hydrolysis treatment, and continuously stirring to complete the sludge dewatering process. By adding specific DES into the sludge, the thermal hydrolysis treatment temperature can be reduced, and at the lower temperature (lt; the method realizes high-efficiency dehydration at the temperature of 100 DEG C, not only reduces the treatment cost, but also improves the safety, and has extremely profound social significance and economic value.

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

The utility model discloses depth-adjustable sludge cleaning equipment for a water conservancy project, which comprises a bearing cylinder, a screw rod, a protective cover and a sludge cleaning box, and the bearing cylinder is arranged in the sludge cleaning box; an L-shaped connecting base is fixed to the position, corresponding to the top of the bearing cylinder, of the inner wall of the sludge cleaning box, a damping damper is vertically installed at the upper end of the connecting base, the upper end of the damping damper is fixedly connected with the outer edge of the top end of the bearing cylinder, and a second driving motor is installed in the middle of the top of the sludge cleaning box; stirring blades are vertically mounted in the sludge cleaning box, and the output end of the second driving motor is fixedly connected with the driving ends of the stirring blades. According to the sludge dewatering device, the sludge pumping depth is convenient to adjust, sludge dewatering is easy, and water in sludge is easy to discharge out of equipment.

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