61results about How to "Improve filter press effect" patented technology

The invention belongs to the technical field of environmental engineering, and particularly relates to a method for deep dehydration of cyanobacteria. The method comprises the steps: conditioning cyanobacteria produced by an algae-water separation station, performing filter pressing so as to obtain cyanobacteria algae gel with a water content of 60% or below, and treating filtered water through analkali liquid, an air floating pool, an AO biological pool and a sedimentation tank so as to meet the urban sewage discharge standard, wherein the alkali liquid is used for adjusting the pH value ofthe filtered water to neutrality or weak alkalinity, in the air floating pool, a coagulant and coagulant aids are utilized to perform a coagulation reaction with the filtered water, and after floc isformed, solid-liquid separation is conducted through an air floatation effect. The problem of high water content of the cyanobacteria algae gel is solved, and the water content of the cyanobacteria algae gel can be reduced effectively after conditioning and pressure filtration are performed, so that reduction of the cyanobacteria is achieved after salvage is performed, and subsequent treatment isfacilitated.

The invention provides a sludge press filtration treatment system and method and relates to the technical field of sludge treatment. The sludge press filtration treatment system comprises a sludge pump, a press filter and a controller, wherein the sludge pump is connected with the press filter through a conveying pipeline, a pressure sensor is arranged on the conveying pipeline, and the controller is electrically connected with the sludge pump and the pressure sensor; the pressure sensor is used for detecting a pressure signal on the conveying pipeline and outputting the pressure signal to the controller, and the controller controls the operation state of the sludge pump according to the pressure signal. The technical problems that a current sludge dewatering treatment system is low in automation degree and low in treatment efficiency, the pressure is not stable in the sludge water conveying process, a sludge inlet system cannot be effectively controlled, and the service life and the press filtration effect of the press filter are affected are solved. Operation of a sludge pump is controlled according to pressure point location during sludge conveying of the press filter, the manual operation procedure is simplified, the intelligence degree is high, and the press filter operates stably.

The invention provides a cantilever type filter press, which belongs to the field of mechanical equipment and comprises a rack, a fixed end plate is arranged at one end of the rack, and a movable endplate is arranged at the other end of the rack; the filtering device is arranged on the rack and comprises a plurality of filtering plate units provided with filtering cloth and a filtering cloth driving mechanism, and the filtering plate units are arranged between the movable end plate and the fixed end plate; the driving device is connected with the movable end plate and drives the movable end plate to move in the length direction of the rack; The tensioning oil cylinder is arranged on the rack; when the device is used, the driving device drives the movable end plate to push the filter plateunits in the filter device to be pressed, then materials are injected into the filter plate units, and the tensioning oil cylinder contracts to extrude and filter the materials; and after the filterpressing is finished, the driving device drives the filter plate units to separate, and then the filter cloth driving mechanism drives the corresponding filter cloth in the plurality of filter plate units to synchronously move so as to unload a filter cake.

The invention discloses a mud filter pressing treatment device for ceramic production and processing, and relates to the technical field of ceramic processing. The device comprises a box body, and a first push plate is in sliding fit with the interior of the box body; supporting rods are arranged on the two sides of the top of the box body; a fixed plate is fixed to the top ends of the supportingrods; first air cylinders are arranged on the two sides of the fixed plate; pressing plates are fixed to the ends of the two first air cylinders; a second cylinder is arranged at the top of the box body; the end of a piston rod of the second cylinder is fixedly connected with a second push plate; cavities are formed in the two ends of the bottom in the box body; an air blower is arranged in each cavity; the air outlet ends of the blowers communicate with an aerator pipe; and air guide pipes are arranged on the peripheral side surface of the aeration pipe in an array. Mud and a flocculating agent in the box body are mixed and reacted through aeration, flocculated coagulum and mud are filtered out under the action of the two first push plates to avoid the situation that the use amount of rawmaterials is increased due to escape of the slurry, and the mud obtained after filter pressing is automatically discharged, so the labor intensity of workers is reduced, and the working efficiency ofmud filter pressing is improved.

The invention discloses an improved filter press, which is characterized in that a flexible linkage mechanism is creatively applied to the filter press, and flowing of feed liquid is used as power output at the same time, so that the flexible linkage mechanism can actively fluctuate to drive filter cloth to shake up and down all the time. Meanwhile, due to the fact that the flexible linkage mechanism can transmit locally excessive fluctuating force to the whole flexible linkage mechanism, the filter cloth can be evenly stressed on the whole. Meanwhile, the fluctuating filter cloth can ensure that filter holes are not blocked, water in filter residues can be discharged more sufficiently, and the filter pressing effect is improved.

The invention discloses a recyclable filter cake filter pressing device based on sewage treatment. The device comprises an extrusion device and a filter pressing table, wherein a water receiving barrel is arranged on one side of the lower end of a top plate through cooperation of a first hanging rod and the annular wall of a protrusion, first bevel gears are oppositely arranged on the inner walls of the two sides of the water receiving barrel through cooperation of L-shaped plates and connecting rods, shifting plates are arranged on the outer walls of the connecting rods through rotating rings, a first rotating shaft with the upper end and the lower end provided with a second bevel gear and a third bevel gear respectively is suspended in the inner cavity of the water receiving barrel, double-blade tool bits are arranged on the outer wall of the first rotating shaft, the third bevel gear is connected with the first bevel gears in a meshed mode, the first rotating shaft is connected to a motor transmission shaft on the outer wall of a side plate through the second bevel gear meshed with a fourth bevel gear at the end of a second rotating shaft, after the motor is started, the second rotating shaft and the first rotating shaft are sequentially driven to rotate, the first rotating shaft drives the double-blade tool bits to smash sundries in the water receiving barrel while rotating, and the third bevel gear is matched with the first bevel gear and the connecting rod to drive the rotating ring to rotate, so that the sundries at the bottom of the water receiving barrel are turned over to be smashed, and the filter pressing effect of equipment is promoted.

The invention provides a side beam type filter press, which belongs to the field of mechanical equipment and comprises a rack, wherein a fixed end plate is arranged at one end of the rack, and a movable end plate is arranged at the other end of the rack; a filtering device which is arranged on the rack and comprises a plurality of filtering plate units provided with filtering cloth and a filteringcloth driving mechanism, wherein the filtering plate units are arranged between the movable end plate and the fixed end plate; a driving device which is connected with the movable end plate and drives the movable end plate to move in the length direction of the rack; when the filter press is used, the driving device drives the movable end plate to push the filter plate units in the filter deviceto be pressed, and then materials are injected into the filter plate units for filter pressing; and after the filter pressing is finished, the driving device drives the filter plate units to separate,and then the filter cloth driving mechanism drives the corresponding filter cloth in the plurality of filter plate units to synchronously move so as to unload a filter cake.

The invention discloses a filter press for solid-liquid separation of waste water. The invention comprises a frame, four guide rollers are arranged on the frame, and a plurality of filter mechanisms are set on the guide rollers. The filter mechanism It includes a filter frame and a filter plate body, the filter frame and the filter plate body are sleeved on the guide roller, the surroundings of the filter plate body protrude outward to form a frame, and the four corners of the frame are provided with positioning holes. The upper end and the lower end of the frame are respectively provided with an upper chute and a lower chute, the upper chute and the lower chute are provided with a plate body, the upper chute is provided with a first elastic pressure block, and the lower chute is provided with a There is a second elastic pressing block, the length of the first elastic pressing block is greater than the length of the second elastic pressing block, the ends of the upper chute and the lower chute are equipped with locking blocks; the center of the plate body is provided with A feeding hole, a plurality of filter holes are evenly arranged around the feeding hole, and the filter holes are equipped with a filter cloth; the frame is also provided with a filter press mechanism.

The invention provides a poultry excrement hydrothermal treatment dewatering method which comprises the following steps: adding an oxidizing agent into fresh poultry excrement, mixing and performing hydrothermal reaction treatment; mixing the treated poultry excrement with a proper amount of water, then dewatering to finish the treatment on the poultry excrement. The poultry excrement hydrothermaltreatment dewatering method can perform dewatering treatment on the poultry excrement and has the advantages that equipment is simple and easy to operate, a treating speed is quick, a period is short, a dewatering degree is high, a solid recovery rate is high, energy consumption is low, cost is low, and a wide application prospect is achieved.

The invention discloses a paper pulp dehydration device for decorative base paper production, which relates to the technical field of decorative base paper production. The paper pulp dehydration device comprises a base, the top of the base is fixedly provided with a washing dehydration cylinder through a mounting rack, and the top of the washing dehydration cylinder is fixedly connected with a raw pulp storage tank; a connecting channel is fixedly installed between the bottom of one end of the raw pulp storage tank and the washing dehydration cylinder, a vent hole is formed in the position, close to the top end of the washing dehydration cylinder, of the connecting channel, and a hollow rotating pipe is arranged in the center of the interior of the washing dehydration cylinder. The hollow rotating pipe is used for driving the eccentric rotating cylinder to eccentrically rotate, the rotating stirring rod is used for stirring to-be-processed paper pulp water, the inwards-concave area is in butt joint with the rectangular groove frame, the paper pulp water is preliminarily filtered, and in the process that the sleeve drives paper pulp to gradually approach the filter cover, the one-time filter pressing and dehydration function on the paper pulp is also completed, and the dehydration effect of the equipment on the paper pulp is enhanced.

The invention discloses a municipal sludge reduction method. The method includes the steps of: 1) introducing municipal sludge into a sludge concentration tank for concentration, and letting the supernatant flow back to the front end of a sewage treatment plant; 2) introducing the concentrated municipal sludge into a biological conditioning tank I, adding ferrous salt and sulfur powder, conductingstirring and aeration, and performing first-stage conditioning; 3) introducing the municipal sludge subjected to the first-stage conditioning into a biological conditioning tank II, replenishing ferrous salt and sulfur powder, and conducting stirring and second-stage conditioning; 4) introducing the municipal sludge subjected to the second-stage conditioning into a modification tank, adding acid,and performing modification treatment; and 5) introducing the modified municipal sludge into a diaphragm filter, adding an external magnetic field, and performing filter pressing to obtain a filter cake and filtrate, subjecting the filter cake to concentrated treatment, and returning the filtrate to the sludge concentration tank. The municipal sludge reduction method provided by the invention hasthe advantages of small reagent dosage, low energy consumption, simple treatment process, good sludge reduction effect and the like, and can reduce the water content of sludge to 50% or below.

The invention provides a high-pressure filter press based on oil cylinder displacement control. A controller of the high-pressure filter press is configured to monitor the pressure value of a pressure fluid entering a closed chamber formed by a filter plate, and when the pressure value is increased by an initial pressure increment P* from an initial pressure P0, the controller sends out a control signal to control an oil cylinder to move by an initial displacement increment L*; and the pressure value continues to be monitored, and when the pressure value is increased by a constant pressure increment p, the controller sends out a control signal to control the oil cylinder to move by a constant displacement increment K. According to the above scheme, the control for maintaining the pressure is simple and accurate, cost is reduced, a failure rate is greatly reduced, and the high-pressure filter press can work under higher pressure, so filter pressing effect is improved.

The invention belongs to the technical field of sludge and sewage treatment, and particularly relates to a flow dividing type sludge and sewage treatment system and process. The belt filter press comprises a rack, and a filter pressing roller is rotationally mounted on the rack; an upper liquid baffle is arranged above the filter pressing roller; a lower liquid baffle is arranged below the filter pressing roller; the upper liquid baffle and the lower liquid baffle are fixedly connected with the rack; cleaning nozzles are mounted above the upper liquid baffle and below the lower liquid baffle; through the arrangement of the sealing mechanism, the two sides of the upper filter belt and the lower filter belt are in sealed contact by the sealing mechanism at the positions, close to the filter pressing roller, of the upper filter belt and the lower filter belt, so that the upper filter belt and the lower filter belt are extruded by the filter pressing roller; sludge layers which are located between the upper filter belt and the lower filter belt and are extruded by the filter pressing rollers to flow to the two sides cannot overflow from the two sides of the upper filter belt and the lower filter belt under blocking of the sealing modules, so that the filter pressing effect of the filter belts on the sludge is improved, and the practicability of the device is improved.

The invention relates to a treatment method of high oil content wastewater sludge. The method comprises the steps of preparing a flocculant: injecting water and polyacrylamide (PAM) cations into a PAMdissolving tank in proportion, starting a solution stirrer for stirring, and evenly mixing to obtain a solution; preparing sludge: conveying high oil content organic sludge and inorganic sludge of coking wastewater into a sludge mixing tank; carrying out material transportation: transporting the sludge prepared in a sludge preparation tank into a sludge reaction tank, and conveying the flocculantsolution in the PAM cation dissolving tank into the sludge reaction tank; stirring and flocculating: starting an agitator of the sludge reaction tank, starting a sludge pump when the floc is found inthe sludge reaction tank, and transporting the flocculated material into a filter press; carrying out drying treatment: sending sludge settled by a flocculation reaction into the filter press and carrying out sludge-water separation, and the transporting the sludge, subjected to filter pressing, to a phenol cyanide stockyard for performing ore blending treatment. The method provided by the invention has the characteristics of being good in solid-liquid separation effect of the sludge, good in filter pressing performance, less in reagent consumption, and the like.