Mechanical core-changing filter device

Abstract

The utility model discloses a mechanical element replacement filter device, which belongs to the technical field of filter equipment and structurally comprises a basic platform, a support, a cross arm, a filter tank, a filter element, a lifting unit and a translation unit or an overturning unit. According to the mechanical element replacement filtering device, the tank cover is lifted, the failed filter element is moved out, a new filter element is replaced, the moved failed filter element is exposed out of the filtering tank, the failed filter element is manually taken down from the upper filter element fixing plate, the new filter element is replaced, and the filter element is replaced again after the running filter element is failed. PLC programming can be achieved in the whole operation process of replacing the filter element, automatic operation is achieved, and the labor intensity of operators is greatly relieved.

Description

Technical Field

[0001] This utility model relates to a filtration device, belonging to the technical field of filtration equipment, and in particular to a filtration device in which the filter element can be replaced by mechanical operation. Background Technology

[0002] Structure and working principle of cartridge filters

[0003] Filter canisters, such as Figure 8 As shown: Mostly made of stainless steel, plastic, or carbon steel, the filter tank consists of a tank body and a lid. An opening is located at the top of the tank body, with a flange at the opening. The lid is positioned above the opening in the tank body and also has a flange. Bolts pass through through holes in the flanges of both the tank body and the lid, connecting the lid and tank body via bolts. The filter tank protects the filter element and withstands the system pressure. The filter element is the core component, made of materials such as polypropylene, stainless steel, activated carbon, and glass fiber. The filter tank has a lower and upper media inlet pipe for connecting to the pipeline containing the media to be treated, allowing for media inflow and outflow. A drain pipe is located at the bottom of the filter tank to discharge residual impurities or cleaning fluid. Pressure gauges are located on the top of the lid and on the lower and upper media inlet pipes to monitor the pressure difference inside the filter tank and between the inlet and outlet, determining when to replace the filter element.

[0004] The filter element is housed inside the filter tank. An upper filter element mounting plate is located at the top of the filter tank, or a lower filter element mounting plate at the bottom. The filter element typically has an opening at one end and a closed end at the other; the open end is the upper end, and the closed end is the lower end. The opening faces upwards and connects to the filter element interface on the upper filter element mounting plate inside the filter tank via threads, clips, or bolts. Alternatively, the filter element's opening faces downwards and connects to the filter element interface on the lower filter element mounting plate at the bottom of the filter tank. When the filter medium enters from the outside or inside of the filter element, suspended particles are trapped as it passes through the filter element's pores, allowing clean medium to flow out. Impurities accumulate on the inner surface or fiber layer of the filter element, achieving gradual filtration.

[0005] Filter element, such as Figure 9 The types shown include: PP meltblown filter cartridges, made of polypropylene ultrafine fibers through thermal melting and entanglement, with a filtration accuracy range of 0.5-100μm and strong corrosion resistance; wound filter cartridges, made by precisely winding textile fiber yarns onto a porous skeleton, capable of removing suspended solids, particulate impurities, etc.; pleated filter cartridges, made of polypropylene and other microporous filter membranes, small in size, large in filtration area, and high in precision; activated carbon filter cartridges, available in compressed and bulk types, capable of adsorbing odors, organic matter, and residual chlorine; and titanium rod filter cartridges, made of titanium powder through molding and high-temperature sintering, which are corrosion-resistant, high-temperature resistant, and have high strength.

[0006] The shortcomings of existing technologies include:

[0007] In heavily polluted environments, filter cartridges need to be replaced frequently. Currently, the replacement is done manually by opening the canister and removing the clogged cartridges by hand. This increases the workload for operators, and the filtered media often contains toxic and harmful pollutants, which can negatively impact the health of operators. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a mechanical filter replacement device. This device can remove the filter element from the filter tank through mechanical operation and can also insert a new filter element into the filter tank.

[0009] The technical solution of this utility model to solve the above problems is: a mechanical filter element replacement device, the structure of which includes a base platform, a cross arm, a filter tank, a filter element, a lifting unit, and a translation unit or a tilting unit; the filter tank is set on the upper part of the base platform, and the filter tank includes a tank body, support legs, an upper filter element fixing plate or a lower filter element fixing plate, an upper filter element fixing ring or a lower filter element fixing ring, and a tank cover, and is fixedly connected to the base platform through the support legs; a lower medium pipe is provided at the bottom or lower side of the tank body, an opening is provided at the upper part of the tank body, the tank cover is set above the opening, an upper medium pipe is provided below the opening of the tank body, and an inner vertical edge ring with a height of 10 mm to 100 mm is provided on the outer side of the opening of the tank body, and at least one annular groove is provided on the inner vertical edge ring, and a sealing ring is set in the annular groove; the lifting unit... The system includes a main support frame, columns, vertical pipes, and a lifting mechanism. The lower part of the columns is fixedly connected to the foundation platform. Each column is a vertically positioned cylinder with a vertical pipe on its outer side and a vertically protruding shaft at its top. The lifting mechanism can be a screw-type electric lifting mechanism, a chain-type electric lifting mechanism, or a hydraulic lifting mechanism. The screw-type electric lifting mechanism includes a lifting motor and a ball screw. The lower part of the main support frame is fixedly connected to the foundation platform. The ball screw includes a bearing support, a nut, and a screw rod. The screw rod is vertically positioned, with its upper and lower parts connected to the main support frame via the bearing support. The nut is connected to the lower part of the vertical pipe, and the shaft of the lifting motor is connected to one end of the ball screw. The chain-type electric lifting mechanism includes a lifting motor, two sprockets, and a chain. The lifting motor is connected to the main support frame... The lower part of the frame is fixedly connected, with one sprocket mounted on the shaft of the lifting motor and the other sprocket connected to the upper part of the main support. A chain is positioned between the two sprockets, and the lower part of the vertical tube is connected to the chain. The hydraulic lifting mechanism includes a telescopic rod, a hydraulic oil tank, a hydraulic oil pump, and a hydraulic cylinder. The top of the telescopic rod is connected to the lower part of the vertical tube, and the rear part of the telescopic rod is housed inside the hydraulic cylinder. The hydraulic cylinder is fixedly connected to the main support, and the rear part of the hydraulic cylinder is connected to one end of the inlet and outlet oil manifold. The other ends of the inlet and outlet oil manifold are respectively connected to the forward push-out oil pipe and the retraction inlet oil pipe. A forward push-out oil valve is installed on the forward push-out oil pipe, and a retraction inlet oil valve is installed on the retraction inlet oil pipe. The forward push-out oil pipe is connected to the oil pump outlet manifold, and one end of the retraction outlet oil pipe is connected to the oil pump outlet manifold, while the other end is housed in the hydraulic oil tank. The oil valve is located on the retractable oil outlet pipe, the retractable oil inlet pipe is connected to the main oil inlet pipe of the oil pump, one end of the forward oil inlet pipe is located in the hydraulic oil tank, and the other end is connected to the main oil inlet pipe of the oil pump. The forward oil inlet valve is located on the forward oil inlet pipe. The cross arm includes a fixed cross wall and a movable cross arm. The root of the fixed cross wall is fixedly connected to the top of the vertical pipe and is set horizontally. The top of the cross arm is set on the upper part of the filter tank and has a vertical shaft hole or a horizontal shaft hole set outwards. The movable cross arm includes a central shaft base and a cross arm. The middle part of the central shaft base has a vertical shaft hole. At least two cross arms are set. The root of the cross arm is fixedly connected to the central shaft base. The middle part of the central shaft base has a vertical shaft hole. The shaft at the top of the vertical pipe is set in the shaft hole of the central shaft base. The cross arm is set horizontally.The translation unit includes a horizontal arm root rotational translation unit, a horizontal arm top rotational translation unit, or a horizontal arm top linear translation unit. The horizontal arm root translation unit includes a translation motor and two gears. The translation motor is fixedly connected to the vertical tube. One gear is mounted on the shaft of the translation motor, and the other gear is mounted on the lower part of the central shaft base and fixedly connected to the central shaft base. The gear on the translation motor meshes with the gear on the lower part of the central shaft base. The horizontal arm top rotational translation unit includes an auxiliary arm, a translation motor, and two gears. The translation motor is fixedly connected to the horizontal arm. A vertical shaft is provided at the top of the horizontal arm, and a vertical shaft hole is provided in the middle of the auxiliary arm. The auxiliary arm is mounted on the shaft of the horizontal arm through the shaft hole and connected to the horizontal arm. One gear is mounted in the shaft hole of the auxiliary arm. On the outside, it is fixedly connected to the auxiliary arm. Another gear is set on the shaft of the translation motor, and the gear on the translation motor meshes with the gear on the outside of the shaft hole of the auxiliary arm. The linear translation unit at the top of the horizontal arm includes an auxiliary arm, a dovetail slide mechanism, a translation motor, and a ball screw. The translation motor is fixedly connected to the horizontal arm or the horizontal support. The horizontal support is fixedly connected to the horizontal arm. The auxiliary arm is parallel to or at a right angle to the horizontal arm. The dovetail slide mechanism includes a dovetail groove concave slide rail and a dovetail groove convex slide rail. The dovetail groove concave slide rail and the dovetail groove convex slide rail are meshed together. The dovetail groove concave slide rail is set on the lower side of the horizontal arm, parallel to or at a right angle to the horizontal arm. The dovetail groove convex slide rail is set on the upper side of the auxiliary arm, parallel to the auxiliary arm. The ball screw includes a screw, a nut, and a bearing support. The bearing support is set with... The lead screw is located at both ends and connected to the cross arm or cross bracket via bearing supports. A nut is located in the middle of the lead screw, and one end of the lead screw is connected to the shaft of the translation motor. The auxiliary arm, cross bracket, and lead screw are arranged parallel to each other, and the auxiliary arm is connected to the lead screw via a nut. The flipping unit includes a flipping motor, two gears, and an auxiliary arm. A shaft is located at the root of the auxiliary arm, and a shaft hole is located at the top of the cross arm. The auxiliary arm is horizontally positioned, and the shaft is inserted into the shaft hole at the top of the cross arm. The flipping motor is fixedly connected to the cross arm. One gear is located on the shaft of the flipping motor, and the other gear is located on the outside of the auxiliary arm shaft. At least two can lids are provided. An outer vertical edge ring is vertically installed at the edge of the can lid, with a height of 10 mm to 100 mm. The top of the can lid is connected to the cross arm via a can lid connecting pipe. The top of the horizontal arm is connected to either the two ends of the translation unit's attached arm or the upper and lower sides of the top of the flipping unit's attached arm; a vertical edge ring of the upper filter plate with a height of 10 mm to 100 mm is vertically arranged on the outer side of the upper filter element fixing plate, and at least one annular groove is provided on the vertical edge ring of the upper filter plate, with a sealing ring set in the annular groove; the upper part of the upper filter element fixing plate is fixedly connected to the lower part of the tank cover through a vertical plate; a filter element connection port or a filter element connection port and a water passage hole are provided on the upper filter element fixing plate; a vertical edge ring of the lower filter plate with a height of 10 mm to 100 mm is vertically arranged on the outer side of the lower filter element fixing plate, and at least one annular groove is provided on the vertical edge ring of the lower filter plate, with a sealing ring set in the annular groove; a filter element connection port is provided on the lower filter element fixing plate;The upper filter element fixing ring is located at the lower part of the upper medium-flow pipe. The outer periphery of the upper filter element fixing ring is connected to the tank body, and the inner side of the upper filter element fixing ring has an upper vertical edge ring with a height of 10 mm to 100 mm. The lower filter element fixing ring is located at the upper part of the lower medium-flow pipe inside the tank. The periphery of the lower filter element fixing ring is connected to the tank body, and the inner side of the lower filter element fixing ring has an upper vertical edge ring with a height of 10 mm to 100 mm.

[0010] Its beneficial effects are:

[0011] This utility model of a mechanical filter replacement device removes the failed filter element by lifting the tank cover and replacing it with a new one. The removed failed filter element is exposed outside the filter tank and can be manually removed from the upper filter element fixing plate and replaced with a new one. When a filter element in operation fails, the filter replacement operation is repeated. The entire filter replacement process is completed by a motor-driven mechanical device. It can also be programmed with PLC to achieve automated operation, greatly reducing the labor intensity of operators. Attached Figure Description

[0012] The mechanical filter replacement device of this utility model will be further described in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the mechanical filter replacement device of this utility model. The lifting mechanism in the diagram is a screw-type electric lifting mechanism.

[0014] Figure 2 This is a schematic diagram of the mechanical filter replacement device of this utility model. The lifting mechanism in the diagram is a chain-type electric lifting mechanism.

[0015] Figure 3 This is a schematic diagram of the mechanical filter replacement device of this utility model. The lifting mechanism in the diagram is a hydraulic lifting mechanism.

[0016] Figure 4 This is a schematic diagram of the upper filter element fixing plate of the mechanical filter element replacement device of this utility model, viewed from top to bottom.

[0017] Figure 5 This is a schematic diagram of the front rotating and translating unit of the cross arm of the mechanical filter replacement device of this utility model.

[0018] Figure 6 This is a schematic diagram of a linear translation unit in the mechanical filter replacement device of this utility model, in which the auxiliary arm and the cross arm are parallel.

[0019] Figure 7 This is a schematic diagram of a linear translation unit in which the auxiliary arm and the cross arm of the mechanical filter replacement device of this utility model are at right angles.

[0020] Figure 8 This is a schematic diagram of the flipping unit of the mechanical filter replacement device of this utility model.

[0021] Figure 9 This is a schematic diagram of a prior art filter tank, with the front of the filter tank body and the tank cover removed from the diagram.

[0022] Figure 10 This is a schematic diagram of a filter element based on existing technology.

[0023] In the diagram, 1 is the tank body, 2 is the support leg, 3 is the base platform, 4 is the tank cover, 5 is the outer vertical edge ring, 6 is the upper filter element fixing plate, 7 is the filter element connection port, 8 is the upper filter element fixing ring, 9 is the filter element, 10 is the main support, 11 is the inner vertical edge ring, 12 is the annular groove, 13 is the sealing ring, 14 is the upper vertical edge ring, 15 is the upper filter plate vertical edge ring, 16 is the opening, 17 is the water passage hole, 18 is the central shaft base, 19 is the cross arm, 20 is the gear, 21 is the column, 22 is the vertical pipe, 23 is the shaft, 24 is the bearing support, 25 is the nut, 26 is the lead screw, 27 is the lifting motor, 28 is the sprocket, 29 is the chain, 30 is the telescopic rod, 31 is the hydraulic oil tank, and 32 is the hydraulic... Oil pump, 33 is hydraulic cylinder, 34 is main oil inlet / outlet pipe, 35 is forward push oil pipe, 36 is retract inlet oil pipe, 37 is forward push oil valve, 38 is retract inlet oil valve, 39 is main oil pump outlet pipe, 40 is retract outlet oil pipe, 41 is retract outlet oil valve, 42 is forward push oil valve, 43 is main oil pump inlet pipe, 44 is forward push oil pipe, 45 is translation motor, 46 is lower medium pipe, 47 is upper medium pipe, 48 is drain valve, 49 is tilting motor, 50 is drain pipe, 51 is dovetail groove concave slide rail, 52 is auxiliary arm, 53 is tank cover connecting pipe, 54 is dovetail groove convex slide block, 55 is pressure gauge, 56 is bolt, 57 is vertical plate, and 58 is horizontal support. Detailed Implementation

[0024] The structure and features of this mechanical filter replacement device are described in detail below with reference to the accompanying drawings:

[0025] Mechanical filter replacement devices, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown: Its structure includes a base platform, a crossarm, a filter tank, a filter element, a lifting unit, and a translation or tilting unit. The filter tank is located on the upper part of the base platform and includes a tank body, support legs, an upper or lower filter element fixing plate, an upper or lower filter element fixing ring, and a tank cover. It is fixedly connected to the base platform through the support legs. A lower medium pipe is provided at the bottom or lower side of the tank body, and an opening is provided at the upper part of the tank body. The tank cover is located above the opening, and an upper medium pipe is provided below the opening of the tank body. An inner vertical edge ring with a height of 10 mm to 100 mm is provided on the outer side of the opening of the tank body. At least one annular groove is provided on the inner vertical edge ring, and a sealing ring is placed in the annular groove. The lifting unit includes a main support, a column, a vertical pipe, and a lifting mechanism. The lower part of the column is fixedly connected to the foundation platform. The column is a vertically positioned cylinder with a vertical tube on its outer side and a vertically protruding shaft at the top. The lifting mechanism includes a screw-type electric lifting mechanism, a chain-type electric lifting mechanism, or a hydraulic lifting mechanism. The screw-type electric lifting mechanism includes a lifting motor and a ball screw. The lower part of the main support is fixedly connected to the foundation platform. The ball screw includes a bearing support, a nut, and the screw itself. The screw is vertically positioned, with its upper and lower parts connected to the main support via the bearing support. The nut is connected to the lower part of the vertical tube, and the shaft of the lifting motor is connected to one end of the ball screw. The chain-type electric lifting mechanism includes a lifting motor, two sprockets, and a chain. The lifting motor is fixedly connected to the lower part of the main support, and the chain... One sprocket is mounted on the shaft of the lifting motor, and another sprocket is connected to the upper part of the main support. A chain is positioned between the two sprockets, and the lower part of the vertical tube is connected to the chain. The hydraulic lifting mechanism includes a telescopic rod, a hydraulic oil tank, a hydraulic oil pump, and a hydraulic cylinder. The top of the telescopic rod is connected to the lower part of the vertical tube, and the rear part of the telescopic rod is housed inside the hydraulic cylinder. The hydraulic cylinder is fixedly connected to the main support, and the rear part of the hydraulic cylinder is connected to one end of the inlet and outlet manifold. The other end of the inlet and outlet manifold is connected to the forward push-out oil pipe and the retraction inlet oil pipe, respectively. A forward push-out valve is installed on the forward push-out oil pipe, and a retraction inlet valve is installed on the retraction inlet oil pipe. The forward push-out oil pipe is connected to the oil pump outlet manifold, and one end of the retraction outlet oil pipe is connected to the oil pump outlet manifold, while the other end is housed in the hydraulic oil tank. A retraction outlet valve is installed at... The return oil pipe is connected to the oil pump inlet main pipe, and the return oil pipe is connected to the oil pump inlet main pipe. One end of the forward oil pipe is set in the hydraulic oil tank, and the other end is connected to the oil pump inlet main pipe. The forward oil valve is set on the forward oil pipe. The cross arm includes a fixed cross wall and a movable cross arm. The root of the fixed cross wall is fixedly connected to the top of the vertical pipe and is set horizontally. The top of the cross arm is set on the upper part of the filter tank and has a vertical shaft hole or a horizontal shaft hole set outward. The movable cross arm includes a central shaft base and a cross arm. The middle part of the central shaft base has a vertical shaft hole. At least two cross arms are set. The root of the cross arm is fixedly connected to the central shaft base. The middle part of the central shaft base has a vertical shaft hole. The shaft at the top of the vertical pipe is set in the shaft hole of the central shaft base. The cross arm is set horizontally.The translation unit includes a horizontal arm root rotational translation unit, a horizontal arm top rotational translation unit, or a horizontal arm top linear translation unit. The horizontal arm root translation unit includes a translation motor and two gears. The translation motor is fixedly connected to the vertical tube. One gear is mounted on the shaft of the translation motor, and the other gear is mounted on the lower part of the central shaft base and fixedly connected to the central shaft base. The gear on the translation motor meshes with the gear on the lower part of the central shaft base. The horizontal arm top rotational translation unit includes an auxiliary arm, a translation motor, and two gears. The translation motor is fixedly connected to the horizontal arm. A vertical shaft is provided at the top of the horizontal arm, and a vertical shaft hole is provided in the middle of the auxiliary arm. The auxiliary arm is mounted on the shaft of the horizontal arm through the shaft hole and connected to the horizontal arm. One gear is mounted in the shaft hole of the auxiliary arm. On the outside, it is fixedly connected to the auxiliary arm. Another gear is set on the shaft of the translation motor, and the gear on the translation motor meshes with the gear on the outside of the shaft hole of the auxiliary arm. The linear translation unit at the top of the horizontal arm includes an auxiliary arm, a dovetail slide mechanism, a translation motor, and a ball screw. The translation motor is fixedly connected to the horizontal arm or the horizontal support. The horizontal support is fixedly connected to the horizontal arm. The auxiliary arm is parallel to or at a right angle to the horizontal arm. The dovetail slide mechanism includes a dovetail groove concave slide rail and a dovetail groove convex slide rail. The dovetail groove concave slide rail and the dovetail groove convex slide rail are meshed together. The dovetail groove concave slide rail is set on the lower side of the horizontal arm, parallel to or at a right angle to the horizontal arm. The dovetail groove convex slide rail is set on the upper side of the auxiliary arm, parallel to the auxiliary arm. The ball screw includes a screw, a nut, and a bearing support. The bearing support is set with... The lead screw is located at both ends and connected to the cross arm or cross bracket via bearing supports. A nut is located in the middle of the lead screw, and one end of the lead screw is connected to the shaft of the translation motor. The auxiliary arm, cross bracket, and lead screw are arranged parallel to each other, and the auxiliary arm is connected to the lead screw via a nut. The flipping unit includes a flipping motor, two gears, and an auxiliary arm. A shaft is located at the root of the auxiliary arm, and a shaft hole is located at the top of the cross arm. The auxiliary arm is horizontally positioned, and the shaft is inserted into the shaft hole at the top of the cross arm. The flipping motor is fixedly connected to the cross arm. One gear is located on the shaft of the flipping motor, and the other gear is located on the outside of the auxiliary arm shaft. At least two can lids are provided. An outer vertical edge ring is vertically installed at the edge of the can lid, with a height of 10 mm to 100 mm. The top of the can lid is connected to the cross arm via a can lid connecting pipe. The top of the horizontal arm is connected to either the two ends of the translation unit's attached arm or the upper and lower sides of the top of the flipping unit's attached arm; a vertical edge ring of the upper filter plate with a height of 10 mm to 100 mm is vertically arranged on the outer side of the upper filter element fixing plate, and at least one annular groove is provided on the vertical edge ring of the upper filter plate, with a sealing ring set in the annular groove; the upper part of the upper filter element fixing plate is fixedly connected to the lower part of the tank cover through a vertical plate; a filter element connection port or a filter element connection port and a water passage hole are provided on the upper filter element fixing plate; a vertical edge ring of the lower filter plate with a height of 10 mm to 100 mm is vertically arranged on the outer side of the lower filter element fixing plate, and at least one annular groove is provided on the vertical edge ring of the lower filter plate, with a sealing ring set in the annular groove; a filter element connection port is provided on the lower filter element fixing plate;The upper filter element fixing ring is located at the lower part of the upper medium-flow pipe. The outer periphery of the upper filter element fixing ring is connected to the tank body, and the inner side of the upper filter element fixing ring has an upper vertical edge ring with a height of 10 mm to 100 mm. The lower filter element fixing ring is located at the upper part of the lower medium-flow pipe inside the tank. The periphery of the lower filter element fixing ring is connected to the tank body, and the inner side of the lower filter element fixing ring has an upper vertical edge ring with a height of 10 mm to 100 mm.

[0026] The principle and operation of the mechanical filter replacement device of this utility model are described in detail below with reference to the accompanying drawings:

[0027] Steps for installing the filter element facing upwards: When the filter element needs to be placed facing upwards, first lift the can lid. The can lid will lift the upper filter element fixing plate connected to it to the top of the can body. The opening of the filter element will face upwards and be fixedly connected to the filter element connection port on the upper filter element fixing plate. The filter element will be in a vertical state. Then lower the can lid. When the can lid is lowered to the upper filter element fixing plate and the upper filter element fixing ring, the outer side of the upper filter element fixing plate will contact the inner side of the upper filter element fixing ring. At the same time, the outer vertical edge of the can lid will contact the inner vertical edge of the can body opening. The can lid will continue to lower until the upper filter element fixing plate and the upper filter element fixing ring and the outer vertical edge of the can lid are aligned and pressed with the inner vertical edge of the can body. Then stop the downward movement of the can lid. After that, other filter elements will be installed on the filter element connection port of the upper filter element fixing plate on the can lid that is not connected to the can body in the same way.

[0028] Steps for installing the filter element face down: When placing the filter element face down, first lift the can lid. The can lid will lift the upper filter element fixing plate connected to it to the top of the can. Position the filter element with its opening facing down and its tail facing up. Secure the tail of the filter element to the filter element connection port on the upper filter element fixing plate, ensuring the filter element is vertical. Secure the opening of the filter element to the filter element connection port on the lower filter element fixing plate. Then lower the can lid. When the can lid descends to the top of the upper filter element fixing plate and the upper filter element fixing ring, the outer side of the upper filter element fixing plate will be in contact with the upper filter element fixing ring. The inner side of the fixing ring contacts the outer vertical edge of the can lid, while the outer side of the lower filter element fixing plate contacts the inner side of the lower filter element fixing ring. The can lid continues to descend until the upper filter element fixing plate and the upper filter element fixing ring, the lower filter element fixing plate and the lower filter element fixing ring, and the outer vertical edge of the can lid are aligned and pressed with the inner vertical edge of the can body. Then, the downward movement of the can lid stops. After that, other filter elements are installed on the filter element connection port of the filter element fixing plate on the can lid that is not connected to the can body, in accordance with the above method.

[0029] Taking the filter replacement operation of this utility model's mechanical filter replacement device, with the filter element opening facing upwards and the filter medium being sewage, as an example, the pressure values ​​on the lower and upper media pipes of the filter tank are first checked. When the pressure difference reaches a set value, such as 0.3 MPa, the filter replacement operation is initiated. First, the water inlet to the filter tank is stopped, and the motor or hydraulic pump of the lifting unit is turned on. The motor or hydraulic pump drives the ball screw, chain, or push-pull rod to raise the vertical pipe. The rise of the vertical pipe causes the horizontal arm to rise, which in turn lifts the tank cover connected to it. The tank cover then lifts the upper filter element fixing plate and the failed filter element connected to it. When the bottom of the failed filter element is raised above the opening of the filter tank, the lifting operation is stopped. Start the translation motor to move the horizontal arm or auxiliary arm horizontally, moving the horizontal arm or auxiliary arm with the failed filter element out, and moving the horizontal arm or auxiliary arm with the new filter element to the top of the filter tank. At this point, stop the horizontal movement, or start the tilting motor to rotate the auxiliary arm 180 degrees and move the horizontal arm with the new filter element to the top of the filter tank. Start the motor or hydraulic pump of the lifting unit. The motor or hydraulic pump drives the ball screw, chain, or telescopic rod to move downward, thereby driving the vertical pipe to descend. The vertical pipe drives the horizontal arm, and the horizontal arm then drives the tank cover and filter element to descend until the tank cover is connected to the opening of the tank body and pressed tightly. Then stop the motor or hydraulic pump of the lifting unit to keep the tank cover in a pressed state.

[0030] The hydraulic mechanism's upward and downward operation steps are as follows: Open the forward thrust valve, open the forward push valve, close the retraction inlet valve, close the retraction outlet valve, and start the hydraulic pump. Hydraulic oil from the tank enters the hydraulic pump along the forward thrust pipe and the pump's main inlet pipe. Powered by the pump, the hydraulic oil flows out from the pump's main outlet pipe and then through the forward push pipe and the main inlet / outlet pipe into the hydraulic cylinder. According to Pascal's principle, this pushes the telescopic rod forward. The hydraulic mechanism's downward and downward operation steps are as follows: Close the forward thrust valve, close the forward push valve, open the retraction inlet valve, open the retraction outlet valve, and start the hydraulic pump. Hydraulic oil in the cylinder flows along the main inlet / outlet pipe and the retraction inlet pipe to the pump's main inlet pipe and then into the pump's inlet. Powered by the pump, the hydraulic oil flows out from the pump's main outlet pipe and through the retraction outlet pipe into the hydraulic tank. After all the hydraulic oil in the cylinder has flowed into the hydraulic tank, the telescopic rod retracts to its original position.

[0031] After replacing the filter cartridge, the water inlet and outlet of the filter tank can continue to operate. The removed and failed filter cartridge is exposed outside the filter tank. At this time, the failed filter cartridge is manually removed from the upper filter cartridge fixing plate and replaced with a new filter cartridge. When the filter cartridge in operation fails, the cartridge replacement operation is performed again. The entire filter cartridge replacement operation is completed by a motor-driven mechanical device. It can also be programmed with PLC to achieve automated operation, which greatly reduces the labor intensity of operators.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mechanical filter element replacement device, an improvement on the filter device, mainly composed of a filter tank, a lifting unit, and a filter element; characterized in that: Its structure includes a base platform, a crossarm, a filter tank, a filter element, a lifting unit, and a translation or tilting unit. The filter tank is located on the upper part of the base platform and includes a tank body, support legs, an upper or lower filter element fixing plate, an upper or lower filter element fixing ring, and a tank cover. It is fixedly connected to the base platform via the support legs. A lower medium pipe is provided at the bottom or lower side of the tank body, and an opening is provided at the upper part of the tank body. The tank cover is located above the opening, and an upper medium pipe is provided below the opening of the tank body. An inner vertical edge ring with a height of 10 mm to 100 mm is provided on the outer side of the opening of the tank body. At least one annular groove is provided on the inner vertical edge ring, and a sealing ring is placed in the annular groove. The lifting unit includes a main support, a column, a vertical pipe, and a lifting mechanism. The lower part of the main support is fixedly connected to the foundation platform. The column is a vertically set cylinder with a vertical tube on the outside of the cylinder and a vertically protruding shaft at the top of the vertical tube. The lifting mechanism includes a screw-type electric lifting mechanism, a chain-type electric lifting mechanism, or a hydraulic lifting mechanism. The screw-type electric lifting mechanism includes a lifting motor and a ball screw. The lower part of the main support is fixedly connected to the foundation platform. The ball screw includes a bearing support, a nut, and a screw. The screw is set vertically, and the upper and lower parts are connected to the main support through the bearing support. The nut is connected to the lower part of the vertical tube, and the shaft of the lifting motor is connected to one end of the ball screw. The chain-type electric lifting mechanism includes a lifting motor, two sprockets, and a chain. The lifting motor is fixedly connected to the lower part of the main support, and one sprocket... The lifting mechanism is mounted on the shaft of the lifting motor, with another sprocket connected to the upper part of the main support. A chain is positioned between the two sprockets, and the lower part of the vertical tube is connected to the chain. The hydraulic lifting mechanism includes a telescopic rod, a hydraulic oil tank, a hydraulic oil pump, and a hydraulic cylinder. The top of the telescopic rod is connected to the lower part of the vertical tube, and the rear part of the telescopic rod is housed inside the hydraulic cylinder. The hydraulic cylinder is fixedly connected to the main support, and the rear part of the hydraulic cylinder is connected to one end of the inlet and outlet manifold. The other ends of the inlet and outlet manifold are connected to the forward push-out oil pipe and the retraction inlet oil pipe, respectively. A forward push-out valve is installed on the forward push-out oil pipe, and a retraction inlet valve is installed on the retraction inlet oil pipe. The forward push-out oil pipe is connected to the oil pump outlet manifold, and one end of the retraction outlet oil pipe is connected to the oil pump outlet manifold, while the other end is housed in the hydraulic oil tank. A retraction outlet valve is installed on... The return oil pipe is connected to the oil pump inlet main pipe, and the return oil pipe is connected to the oil pump inlet main pipe. One end of the forward oil pipe is set in the hydraulic oil tank, and the other end is connected to the oil pump inlet main pipe. The forward oil valve is set on the forward oil pipe. The cross arm includes a fixed cross wall and a movable cross arm. The root of the fixed cross wall is fixedly connected to the top of the vertical pipe and is set horizontally. The top of the cross arm is set on the upper part of the filter tank and has a vertical shaft hole or a horizontal shaft hole set outward. The movable cross arm includes a central shaft base and a cross arm. The middle part of the central shaft base has a vertical shaft hole. At least two cross arms are set. The root of the cross arm is fixedly connected to the central shaft base. The middle part of the central shaft base has a vertical shaft hole. The shaft at the top of the vertical pipe is set in the shaft hole of the central shaft base. The cross arm is set horizontally.The translation unit includes a horizontal arm root rotational translation unit, a horizontal arm top rotational translation unit, or a horizontal arm top linear translation unit. The horizontal arm root translation unit includes a translation motor and two gears. The translation motor is fixedly connected to the vertical tube. One gear is mounted on the shaft of the translation motor, and the other gear is mounted on the lower part of the central shaft base and fixedly connected to the central shaft base. The gear on the translation motor meshes with the gear on the lower part of the central shaft base. The horizontal arm top rotational translation unit includes an auxiliary arm, a translation motor, and two gears. The translation motor is fixedly connected to the horizontal arm. A vertical shaft is provided at the top of the horizontal arm, and a vertical shaft hole is provided in the middle of the auxiliary arm. The auxiliary arm is mounted on the shaft of the horizontal arm through the shaft hole and connected to the horizontal arm. One gear is located outside the shaft hole of the auxiliary arm and fixedly connected to the auxiliary arm. The other gear is mounted on the shaft of the translation motor, and the gear on the translation motor meshes with the gear on the auxiliary arm. The gears on the outside of the shaft hole are meshed; the linear translation unit at the top of the horizontal arm includes an auxiliary arm, a dovetail slide mechanism, a translation motor, and a ball screw. The translation motor is fixedly connected to the horizontal arm or the horizontal support. The horizontal support is fixedly connected to the horizontal arm. The auxiliary arm is parallel to or perpendicular to the horizontal arm. The dovetail slide mechanism includes a dovetail groove concave slide rail and a dovetail groove convex slide rail. The dovetail groove concave slide rail and the dovetail groove convex slide rail are meshed. The dovetail groove concave slide rail is parallel to or perpendicular to the horizontal arm and is located on the lower side of the horizontal arm. The dovetail groove convex slide rail is parallel to the auxiliary arm and is located on the upper side of the auxiliary arm. The ball screw includes a screw, a nut, and a bearing support. The bearing support is located at both ends of the screw. The screw is connected to the horizontal arm or the horizontal support through the bearing support. The nut is located in the middle of the screw. One end of the screw is connected to the shaft of the translation motor. The auxiliary arm, the horizontal support, and the screw are arranged in parallel. The auxiliary arm is connected to the screw through the nut. The flipping unit includes a flipping motor, two gears, and an auxiliary arm. A shaft is located at the base of the auxiliary arm, and a shaft hole is located at the top of the horizontal arm. The auxiliary arm is horizontally positioned, with the shaft inserted into the shaft hole at the top of the horizontal arm. The flipping motor is fixedly connected to the horizontal arm. One gear is mounted on the shaft of the flipping motor, and the other gear is located on the outside of the auxiliary arm shaft. At least two can lids are provided. An outer vertical edge ring, 10 mm to 100 mm high, is vertically positioned at the edge of the can lid. The top of the can lid is connected to the top of the horizontal arm via a can lid connecting pipe, or to both ends of the auxiliary arm of the translation unit, or to the upper and lower sides of the top of the auxiliary arm of the flipping unit. A vertical edge ring, 10 mm to 100 mm high, is vertically positioned on the outer side of the upper filter element fixing plate. At least one annular groove is provided on the upper filter plate edge ring, and a sealing ring is placed within the annular groove. The upper part of the upper filter element fixing plate is fixedly connected to the lower part of the tank cover via a vertical plate. The upper filter element fixing plate is provided with a filter element connection port or a filter element connection port and a water passage hole. The lower filter element fixing plate has a vertically arranged lower filter plate vertical edge ring with a height of 10 mm to 100 mm on its outer side. The lower filter plate vertical edge ring has at least one annular groove, and a sealing ring is arranged in the annular groove. The lower filter element fixing plate is provided with a filter element connection port. The upper filter element fixing ring is located at the lower part of the upper medium pipe. The outer periphery of the upper filter element fixing ring is connected to the tank body. The inner side of the upper filter element fixing ring has an upper vertical edge ring with a height of 10 mm to 100 mm. The lower filter element fixing ring is located at the upper part of the lower medium pipe inside the tank. The periphery of the lower filter element fixing ring is connected to the tank body. The inner side of the lower filter element fixing ring has an upper vertical edge ring with a height of 10 mm to 100 mm.

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