52results about How to "Avoid affecting filtration efficiency" patented technology

The invention is suitable for the technical field of sewage treatment, and provides a sewage treatment environmental protection device which comprises: a shell, the upper end of which is provided witha water inlet and the lower end of which is provided with a water outlet; a first filtering plate which is rotatably mounted in the shell and is provided with filter holes and is fixedly connected with a first grooved pulley mechanism; a discharging plate which is rotatably mounted below the first filtering plate in the shell and is fixedly connected with a second grooved pulley mechanism; and adredging plate which is arranged above the first filtering plate in the shell, wherein a dredging rod is mounted at the lower end, and the upper end is fixedly connected with the rack; a discharge port is formed in the position, close to the discharge plate, of the shell; the dredging rod corresponds to the filtering holes in the first filtering plate in position, and the size of the dredging rodis equal to or smaller than that of the filtering holes; a fixing groove is formed in the rack and is meshed with the gear; the gear is driven by a power piece fixedly installed in the shell. According to the embodiment of the invention, the filter screen can be prevented from being blocked, and precipitated substances in sewage can be conveniently collected.

The invention discloses an aquaculture pond purification device. The water inlet pipe of the aquaculture pond purification device is connected to the bottom of an aquaculture pond, the water outlet pipe of the aquaculture pond purification device is connected with a spray pipe mounted above the aquaculture pond, the aquaculture pond purification device comprises a filter tank, a flocculation tank,a sedimentation tank and a purification tank which are arranged in sequence, a filter cylinder is arranged at the top of the inner chamber of the filter tank, the water inlet pipe is connected with the top of one side of the filter cylinder, a conveyor auger is mounted in the filter cylinder, a residue discharge port is arranged at one end, away from the water inlet pipe, of the filter cylinder,an aeration mechanism is arranged in the sedimentation tank, and the aeration mechanism comprises a second motor, a disc, a connecting rod and an aeration pipe. The arranged aeration mechanism continuously changes the aeration angle during aeration, so the aeration range is enlarged, and the aeration effect is improved; and circulating purification avoids wastes of water resources, and the oxygencontent of water is increased by spraying.

The invention relates to the field of soil remediation, in particular to a crushing and repairing device for heavy metal soil. The device comprises a motor, a transmission shaft, an upper elastic grinding assembly, a lower elastic grinding assembly, a screening and filtering assembly and a sliding column. The upper elastic grinding assembly comprises an upper fixing outer ring, a plurality of upper elastic strips and an upper fixing inner ring, and the upper fixing outer ring is fixedly installed; the upper ends of the upper elastic strips are connected with the upper fixing outer ring, the lower ends are connected with the upper fixing inner ring, and the spiral direction of the projection in the horizontal plane from inside to outside is opposite to the rotating direction of the transmission shaft; the lower elastic grinding assembly comprises a lower fixing outer ring, a plurality of lower elastic strips and a lower fixing inner ring, and the lower fixing outer ring is rotatably arranged; the inner end of the sliding column is connected with the upper fixing inner ring, and the outer end is vertically slidably mounted on the lower fixing outer ring; the upper ends of the lower elastic strips are connected with the lower fixing outer ring, the lower ends are connected with the lower fixing inner ring, and the lower elastic strips and the upper elastic strips are opposite in rotation direction; stirring blocks are arranged in spaces defined by the upper elastic strips and the lower elastic strips; and the screening and filtering assembly is used for receiving and filtering the crushed soil.

The invention discloses a tomato crushing and filtering device. The tomato crushing and filtering device includes a first crushing box, a secondary crushing box is arranged at the lower part of the first crushing box, a secondary crushing motor is arranged at the upper part of the secondary crushing box, a moving device is arranged at the lower part of the secondary crushing box, a first collection box is arranged at the lower part of one side of the moving device, a filter screen is arranged in the first collection box, and a second collection box is arranged on the other side of the moving device. Through thearrangements of the first crushing box and the second crushing box, a tomato is crushed twice to ensure that tomato pulp can be completely crushed, and the crushing efficiency is improved.

The invention discloses an air heat load recovery system of a dry type oil-free air compressor. The air heat load recovery system comprises an air inlet pipe and an air heat recovery assembly. The lower end of the air inlet pipe is fixedly connected with the middle position of the upper end of the air heat recovery assembly. The air inlet pipe is provided with an electromagnetic valve. A temperature sensor is arranged in the upper portion of the interior of the air inlet pipe. A purification assembly is arranged at the lower end of the air heat recovery assembly. A water supply assembly is arranged on one side of the air heat recovery assembly. An electric control cabinet and a PLC are arranged above the two sides of the water supply assembly. In the air heat load recovery system, throughcooperative work of the water supply assembly, it is guaranteed that clean recovered water is conveyed to a recovery pipe, the situation that impurities enter the recovery pipe and consequently blockage is caused is avoided, cyclic utilization of the recovered water is facilitated, and the air heat load recovery system is particularly suitable for recovering and utilizing air heat loads of the aircompressor working in the high-temperature environment with serious dust pollution.

The invention belongs to the technical field of polypropylene film production, and particularly relates to a polypropylene bidirectional stretching film production line. The polypropylene bidirectional stretching film production line comprises a sealing cover, an outer cylinder, connecting pipes, a buffering spring and a filtering cylinder; the buffering spring is fixed to the inner bottom of theouter cylinder; the filtering cylinder is fixed to the upper end of the buffering spring; and a material inlet is formed in the upper end of the side of the outer cylinder. According to the polypropylene bidirectional stretching film production line, the sealing cover with a pressing plate is arranged, the pressing plate is descended by pressing a guide rod downwards; the pressing plate presses the filtering cylinder downward; the filtering cylinder is descended; the filtering cylinder is rebounded upwards under the action of the elastic force of the buffering spring, which makes impurities inthe filtering cylinder fall off, and avoid blockage that affects the filtering efficiency; the sealing cover is opened; the filtering cylinder extends out upwards under the action of the elastic force of the buffering spring, which facilitates withdrawing and replacing; the connecting pipes are connected between each of the material inlet and a material outlet of the outer cylinder; and each connecting pipe is in an structure that one end close to the outer cylinder is inclined upward, so that the materials in the material inlet and the material outlet are prevented from refluxing into the filtering cylinder to cause inconvenience in the replacement of the filtering cylinder.

The invention belongs to the field of building engineering, and particularly relates to a rapid flying dust absorption and treatment device for constructional engineering. The rapid flying dust absorption and treatment device for constructional engineering comprises a box body, wherein the side wall of the box body is fixedly sleeved with suction pipes; the outer sides of the suction pipes are slidably sleeved with movable pipes; the side walls of the movable pipes are fixedly sleeved with suction heads; wheels are arranged on the box body; the wheels are provided with limiting grooves; bolts are rotationally connected into the limiting grooves; hinge rods are welded to the bolts; supporting rods are hinged to the hinge rods; the movable pipes are hinged to the supporting rods; and connecting rods are welded to the side wall of the box body. According to the rapid flying dust absorption and treatment device for constructional engineering provided by the invention, by arranging the structures such as the wheels, the hinge rods, the supporting rods and connecting rings, when the device moves, the wheels rotate to enable the hinge rods to do eccentric motion, then the supporting rods drive the movable pipes to rotate in a reciprocating mode, and then the suction heads on the movable pipes swing, so that the air adsorption area of the device is larger, and the adsorption efficiency is higher.

The present invention relates to the field of soil remediation, in particular to a soil screening device for soil remediation, comprising a crushing cylinder, a motor, a stirring block, an elastic grinding piece, a screening assembly, and a transmission shaft; the transmission shaft is vertically arranged in the crushing cylinder, and It rotates under the drive of the motor; the elastic grinding assembly includes a fixed outer ring, a fixed inner ring, and a plurality of elastic strips. The upper end is connected to the fixed outer ring, and the lower end is connected to the fixed inner ring, and the projection of each elastic strip in the horizontal plane is spiral; When the shaft rotates, it interacts with the elastic bar to crush the blocky soil, so that the elastic bar is stretched under the extrusion of the blocky soil, and then the fixed inner ring rotates, and recovers part or all of the contraction when the pressure decreases or disappears; sieving The module receives crushed soil lumps for filtration.

The invention relates to the technical field of filtering equipment, and discloses a microfilter for waste water treatment and a waste water treatment method thereof. Through the setting of the movable pipe and the circular hole at the outer end of the threaded leaf, when the microfilter is performing filtering work, the outer end of the movable pipe is connected to a negative pressure fan. The impurities inside the filter are sucked out. When the filter rotates for a cycle, the impurities attached to the mesh of the filter can be completely removed to prevent impurities from clogging the mesh of the filter; Forty-five degrees and connected to the water pump. At this time, the water flow will wash the filter screen through the round hole opened on the outer end of the threaded leaf. After the filter screen rotates for one cycle, the water flow sprayed from the round hole will complete the flushing of the entire filter screen. , There will be no dead corners that cannot be cleaned.

The invention discloses water purification equipment with an antibacterial function, a pre-filtration cavity and a precipitation cavity are formed in a precipitation tank, the pre-filtration cavity is communicated with the precipitation cavity through a through hole, a precipitation mechanism comprises a first filter screen, the first filter screen is transversely arranged in the pre-filtration cavity, a water inlet pipe is fixedly arranged on one side of the precipitation tank, the water inlet pipe is communicated with the pre-filtration cavity, and a water outlet pipe is fixedly arranged on the other side of the precipitation tank. A water pump is fixedly arranged on the water inlet pipe, a filtering mechanism is fixedly arranged on the filtering box, a water outlet pipe is fixedly arranged on one side of the water purifying box, and a sterilization mechanism is fixedly arranged in the water purifying box; the pre-filtering cavity is communicated with the filtering box through a first pipeline, the settling cavity is communicated with the filtering box through a second pipeline, and the filtering box is communicated with the water purifying box through a third pipeline. According to the water purification equipment with the antibacterial function, the precipitation mechanism is arranged, so that large-particle impurities such as rust and silt in tap water can be precipitated before filtration, the filter screen is prevented from being blocked, the maintenance period is prolonged, and meanwhile, the sterilization mechanism is arranged to eliminate bacteria in the tap water, so that the tap water is purified.

The invention discloses a negative pressure filter, which includes a filter tube, a filter device and a controller. There is an oil cylinder, and the power end of the oil cylinder presses the filter device on the working side of the pressure measurement and sealing mechanism; one side of the filter tube is connected to a liquid outlet pipe, and the side of the filter pipe far away from the liquid outlet pipe is provided with an anti-blocking sewage discharge The anti-blocking sewage mechanism is connected with a liquid inlet pipe, and the vacuum water tank is provided with a discharge port and a pressure gauge. The anti-blocking sewage mechanism is connected with the filter pipe and cooperates with the filter device. The controller Electrically connect the pressure gauge, vacuum pump, oil cylinder and pressure measuring sealing mechanism; a negative pressure filter of the present invention generates negative pressure through the vacuum pump, so that the waste water can quickly pass through the filter device, and the rapid removal efficiency of particulate matter in the waste water is improved, thereby Accelerate the filtration speed and can improve the recycling rate of waste water.