High precision microporous membrane filtration device with gradient pore size structure

Abstract

The application discloses a high-precision microporous membrane filtering equipment with a gradient pore size structure and relates to the technical field of industrial gas filtering equipment.The equipment comprises a filtering bin, a maintenance bin door is arranged on the side of the filtering bin, first filtering plates and second filtering plates are sequentially arranged in the filtering bin from bottom to top, and a high-precision filtering assembly is arranged in the filtering bin.First, different first filtering plates and second filtering plates are used for preliminary filtering, then further filtering is conducted through the high-precision filtering assembly, and in order to prevent the gas flow from being too large to cause the contact time of the gas with the high-precision microporous membrane to be too short, the centrifugal assembly is used to control the hydraulic assembly to work after the flow is relatively large, finally the telescopic filtering membrane support is pulled up, and two flow guide plates are used to prolong the residence time of the gas in the telescopic filtering membrane support, so that the contact time of the gas with the high-precision microporous membrane is prolonged and the filtering effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial gas filtering equipment, and particularly relates to high-precision microporous membrane filtering equipment with a gradient pore size structure. BACKGROUND

[0002] A chemical production process refers to a production process of chemically processing raw materials to finally obtain valuable products. Due to the diversity of raw materials and products and the complexity of the production process, there are tens of thousands of chemical production processes. In the chemical production process, waste gas containing various harmful gases is generated, and the waste gas needs to be treated before being discharged. The treatment process of the harmful gas greatly damages the filter core of the filter, thereby reducing the efficiency of waste gas treatment.

[0003] The existing industrial gas filtering device generally adopts multiple filter plates for sequential filtering to decompose toxic substances and impurities in industrial gas. However, if the gas flow is too large, the contact time with the filter plate will be short, affecting the filtering effect. SUMMARY

[0004] The purpose of the present application is to solve the problem in the prior art that the industrial gas filtering device generally adopts multiple filter plates for sequential filtering to decompose toxic substances and impurities in industrial gas, but if the gas flow is too large, the contact time with the filter plate will be short, affecting the filtering effect. The high-precision microporous membrane filtering equipment with a gradient pore size structure is proposed.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] The high-precision microporous membrane filtering equipment with a gradient pore size structure comprises a filtering bin, a maintenance bin door is assembled on the side surface of the filtering bin, and a first filter plate and a second filter plate are sequentially assembled in the filtering bin from bottom to top.

[0007] The inside of the filter bin is equipped with a high-precision filter assembly, the high-precision filter assembly comprises a telescopic filter membrane support, a high-precision microporous membrane is arranged in the middle of the telescopic filter membrane support, two flow guide plates for guiding waste gas are arranged in the inside of the telescopic filter membrane support, a rotating rod one is rotatably connected to the inside of the filter bin at the air inlet, a wind blade is arranged at the front end of the rotating rod one, a centrifugal assembly is arranged in the middle of the rotating rod one, and a hydraulic assembly for transmission control of telescopic extension of the telescopic filter membrane support is arranged in the inside of the filter bin. First, different specifications of the first filter plate and the second filter plate are used for preliminary filtration, then further filtration is carried out through the high-precision filter assembly, in order to prevent the contact time of the gas flow with the high-precision microporous membrane from being too short due to too large gas flow, therefore, after the flow is large, the centrifugal assembly controls the work of the hydraulic assembly, finally the telescopic filter membrane support is pulled up, and the two flow guide plates are used to prolong the residence time of the gas in the telescopic filter membrane support, so as to prolong the contact time of the gas with the high-precision microporous membrane and improve the filtration effect

[0008] Preferably, the centrifugal assembly comprises three hollow grooves arranged in an annular array, a special-shaped rod is penetratingly and slidably connected to the inside of the three hollow grooves, and springs are fixed between the three special-shaped rods and the inner walls of the hollow grooves.

[0009] Preferably, the outer side of the special-shaped rod is in an arc-shaped structure, and the arc-shaped parts of the three special-shaped rods are in a complete circular shape in the initial state.

[0010] Preferably, the hydraulic assembly comprises a three-way hydraulic bin fixed in the inside of the filter bin, a hydraulic rod one fixed with the flow guide plate is slidably connected to one end of the inside of the three-way hydraulic bin, and a hydraulic rod two is slidably connected to the other end of the inside of the three-way hydraulic bin.

[0011] Preferably, a ball is rotatably connected to the end of the hydraulic rod two away from the three-way hydraulic bin, and the hydraulic rod two is located on the motion track of the special-shaped rod.

[0012] Preferably, the bottom of the first filter plate is equipped with a cleaning device.

[0013] Preferably, the cleaning device comprises a ring-shaped rack slidingly connected to the bottom of the first filter plate, a horizontal rod fixed at the inner ring of the ring-shaped rack, a brush mounted on the upper surface of the horizontal rod, a gear fixed at the front end of a rotating rod two rotatingly connected to the inside of the filter bin, and the rotating rod two is drivingly connected to the rotating rod one through a chain. The bottom of the first filter plate is cleaned by the cleaning device. When the high-precision filtering assembly is working, the rotating rod two and the gear fixed thereon are driven to rotate by the chain. With the rotation of the gear, the ring-shaped rack is driven to slide. With the sliding of the ring-shaped rack, the horizontal rod thereon drives the brush to move in a ring shape, thereby cleaning the bottom of the first filter plate, preventing too much dirt from being adsorbed to affect the filtering effect of the first filter plate.

[0014] Preferably, the upper surface of the second filter plate is provided with a vibration assembly.

[0015] Preferably, the vibration assembly comprises a rotating rod three rotatingly connected to the inner wall of the filter bin, a two-way hydraulic bin fixed to the side of the three-way hydraulic bin, a protrusion fixed to the middle of the rotating rod three, a plurality of elastic telescopic rods fixed to the outer side of the rotating rod three, a rubber pressing block fixed to the telescopic end of each elastic telescopic rod, a hydraulic rod three fixed to the side of the hydraulic rod two and slidingly connected to the inner end of the two-way hydraulic bin, and a hydraulic rod four fixed to the side of the protrusion and slidingly connected to the other inner end of the two-way hydraulic bin. The upper surface of the second filter plate is knocked and vibrated by the vibration assembly, so that the dirt adsorbed at the bottom of the second filter plate falls to the upper surface of the first filter plate, facilitating the cleaning by the worker after opening the maintenance bin door.

[0016] Compared with the prior art, the application has the following advantages:

[0017] 1. The first filter plate and the second filter plate with different specifications are used for preliminary filtering, and then the high-precision filtering assembly is used for further filtering. In order to prevent the gas flow from being too large to cause the contact time with the high-precision microporous membrane to be too short, the hydraulic assembly is controlled to work by the centrifugal assembly when the flow is large, and finally the telescopic filter membrane support is pulled up, and the two flow guides are used to prolong the residence time of the gas in the telescopic filter membrane support, thereby prolonging the contact time of the gas with the high-precision microporous membrane and improving the filtering effect.

[0018] 2. The bottom of the first filter plate is cleaned by the cleaning device. When the high-precision filtering assembly is working, the rotating rod two and the gear fixed thereon are driven to rotate by the chain. With the rotation of the gear, the ring-shaped rack is driven to slide. With the sliding of the ring-shaped rack, the horizontal rod thereon drives the brush to move in a ring shape, thereby cleaning the bottom of the first filter plate, preventing too much dirt from being adsorbed to affect the filtering effect of the first filter plate.

[0019] 3、Through setting vibration assembly, the upper surface of the second filter plate is knocked and vibrated, so that the impurities adsorbed on the bottom of the second filter plate are shaken off to the upper surface of the first filter plate, and the staff can clean up after opening the maintenance door. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The whole structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application.

[0021] Figure 2 The cross-sectional structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application. Figure One ;

[0022] Figure 3 The cross-sectional structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application. Figure Two ;

[0023] Figure 4 The partial structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application. Figure One ;

[0024] Figure 5 The high-precision filtering assembly structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application.

[0025] Figure 6 The high-precision filtering assembly partial structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application.

[0026] Figure 7 The cleaning device structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application.

[0027] Figure 8 The partial structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application. Figure Two ;

[0028] Figure 9 The vibration assembly structure schematic diagram of the high-precision microporous membrane filtering equipment with gradient pore size structure is provided in the application.

[0029] IN THE DRAWINGS:

[0030] 100, filter bin; 200, maintenance door; 300, first filter plate; 400, second filter plate;

[0031] 500, high-precision filter assembly; 510, telescopic filter membrane support; 520, high-precision microporous membrane; 530, flow guide plate; 540, three-way hydraulic bin; 550, hydraulic rod one; 560, hydraulic rod two; 570, rotating rod one; 580, wind blade; 590, hollow groove; 5100, spring; 5110, special-shaped rod;

[0032] 600, cleaning device; 610, annular rack; 620, cross rod; 630, brush; 640, rotating rod two; 650, gear; 660, chain;

[0033] 700, vibration assembly; 710, two-way hydraulic bin; 720, rotating rod three; 730, hydraulic rod three; 740, hydraulic rod four; 750, protrusion; 760, elastic telescopic rod; 770, rubber pressing block. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] Embodiment one, with reference to Figures 1-6 , high-precision microporous membrane filtering equipment with gradient pore size structure, comprising a filter bin 100, the filter bin 100 is equipped with an inspection bin door 200 on the side, the bottom of the filter bin 100 is provided with an air inlet, the top of the filter bin 100 is provided with an air outlet, the inside of the filter bin 100 is sequentially equipped with a first filter plate 300 and a second filter plate 400 from bottom to top, wherein the specification of the first filter plate 300 is larger than that of the second filter plate 400, thereby forming a stepped pore size structure;

[0037] The inside of the filter bin 100 is equipped with a high-precision filter assembly 500, the high-precision filter assembly 500 comprises a telescopic filter membrane support 510, the middle part of the telescopic filter membrane support 510 is placed with a high-precision microporous membrane 520, the telescopic filter membrane support 510 is composed of three annular plates and two rubber arc-shaped membranes, so it has good ductility, the inside of the telescopic filter membrane support 510 is equipped with two flow guide plates 530 for guiding waste gas, the inside of the filter bin 100 is rotatably connected with a rotating rod one 570 at the air inlet, the front end of the rotating rod one 570 is equipped with a wind blade 580, the middle part of the rotating rod one 570 is equipped with a centrifugal assembly, the centrifugal assembly comprises three hollow grooves 590 arranged in an annular array, the inside of each of the three hollow grooves 590 is penetrated and slidably connected with a special-shaped rod 5110, springs 5100 are fixed between the three special-shaped rods 5110 and the inner wall of the hollow groove 590, the outer side of the special-shaped rod 5110 is in an arc-shaped structure, and the arc-shaped parts of the three special-shaped rods 5110 are in a complete circular shape in the initial state, the inside of the filter bin 100 is equipped with a hydraulic assembly for driving control of the telescopic movement of the telescopic filter membrane support 510, the hydraulic assembly comprises a three-way hydraulic bin 540 fixed in the inside of the filter bin 100, the inside of the three-way hydraulic bin 540 is slidably connected with a hydraulic rod one 550 fixed with the flow guide plate 530 at one end of the piston, the inside of the three-way hydraulic bin 540 is slidably connected with a hydraulic rod two 560 at the other end of the piston, the end of the hydraulic rod two 560 away from the three-way hydraulic bin 540 is rotatably connected with a ball, and the hydraulic rod two 560 is located on the movement track of the special-shaped rod 5110. First, different specifications of the first filter plate 300 and the second filter plate 400 are used for preliminary filtration, then the high-precision filter assembly 500 is used for further filtration, and in order to prevent the gas flow from being too large to cause the contact time with the high-precision microporous membrane 520 to be too short, the centrifugal assembly controls the hydraulic assembly to work after the gas flow is large, finally the telescopic filter membrane support 510 is pulled up, and the two flow guide plates 530 are used to prolong the residence time of the gas in the telescopic filter membrane support 510, so as to prolong the contact time of the gas with the high-precision microporous membrane 520 and improve the filtration effect.

[0038] In specific use, the above device first enters the industrial waste gas through the bottom air inlet of the filter bin 100, when the conventional flow gas enters, it will sequentially pass through the first filter plate 300 and the second filter plate 400 for preliminary step-by-step filtration, then pass through the high-precision microporous membrane 520 for secondary meticulous filtration, and finally be discharged from the exhaust port of the filter bin 100;

[0039] When the high-speed gas enters the filter bin 100 through the air inlet, the entering gas will contact the wind blade 580, and the wind blade 580 will drive the rotating rod 570 to rotate under the action of the wind force. At this time, under the action of the centrifugal force, the special-shaped rod 5110 will slide and expand outward in the hollow groove 590. At this time, with the rotation and expansion of the special-shaped rod 5110, it will extrude the two hydraulic rods 560. At this time, the two hydraulic rods 560 are extruded and slide into the three-way hydraulic bin 540. The liquid pressure in the three-way hydraulic bin 540 becomes larger, thereby pushing the hydraulic rod 550 to move upward. With the upward movement of the hydraulic rod 550, the telescopic filter membrane support 510 is pushed to move upward by the flow guide plate 530. In combination with the two flow guide plates 530, the residence time of the gas in the telescopic filter membrane support 510 is prolonged, thereby prolonging the contact time of the gas with the high-precision microporous membrane 520, and improving the filtering effect.

[0040] Embodiment two, refer to Figures 4-7 On the basis of embodiment one, a cleaning device 600 is arranged at the bottom of the first filter plate 300. The cleaning device 600 comprises a ring-shaped rack 610 slidingly connected to the bottom of the first filter plate 300, and a rotating rod 640 rotatingly connected to the inside of the filter bin 100. A horizontal rod 620 is fixed in the inner ring of the ring-shaped rack 610. A brush 630 is arranged on the upper surface of the horizontal rod 620. A gear 650 engaging with the ring-shaped rack 610 is fixed to the front end of the rotating rod 640. The rotating rod 640 is drivingly connected to the rotating rod 570 through a chain 660. The cleaning device 600 is arranged to clean the bottom of the first filter plate 300. When the high-precision filter assembly 500 is working, the rotating rod 640 and the gear 650 fixed thereon are driven to rotate by the chain 660. With the rotation of the gear 650, the ring-shaped rack 610 is driven to slide. With the sliding of the ring-shaped rack 610, the horizontal rod 620 drives the brush 630 to move in a ring shape, thereby cleaning the bottom of the first filter plate 300, preventing too much dirt from being adsorbed to affect the filtering effect of the first filter plate 300.

[0041] In the above device, on the basis of embodiment one, with the rotation of the rotating rod 570, the rotating rod 640 drivingly connected thereto through the chain 660 is synchronously driven to rotate. At this time, the rotation of the rotating rod 640 drives the gear 650 fixed to the outer side of the rotating rod 640 to rotate. With the rotation of the gear 650, the ring-shaped rack 610 engaging with the gear 650 slides in a ring shape at the bottom of the first filter plate 300. With the sliding of the ring-shaped rack 610, the horizontal rod 620 drives the brush 630 to move in a ring shape, thereby cleaning the bottom of the first filter plate 300, preventing too much dirt from being adsorbed to affect the filtering effect of the first filter plate 300.

[0042] Embodiment three, refer to Figures 4-9On the basis of embodiment one, the upper surface of the second filter plate 400 is equipped with a vibration assembly 700, the vibration assembly 700 comprising a rotating rod three 720 rotatably connected to the inner wall of the filter bin 100, a two-way hydraulic bin 710 fixed to the side of the three-way hydraulic bin 540, a protrusion 750 fixed to the middle of the rotating rod three 720, a plurality of elastic telescopic rods 760 fixed to the outer side of the rotating rod three 720, a rubber pressing block 770 fixed to the telescopic end of each elastic telescopic rod 760, a hydraulic rod three 730 fixed to the side of the hydraulic rod two 560 and slidably connected to the inner end of the two-way hydraulic bin 710, and a hydraulic rod four 740 fixed to the side of the protrusion 750 and slidably connected to the other end of the two-way hydraulic bin 710. The vibration assembly 700 is arranged to knock and vibrate the upper surface of the second filter plate 400, so that the impurities adsorbed on the bottom of the second filter plate 400 fall onto the upper surface of the first filter plate 300, facilitating the cleaning after the maintenance bin door 200 is opened by the staff.

[0043] In actual use, on the basis of embodiment one, as the hydraulic rod two 560 rises and falls, the hydraulic rod three 730 moves up and down, as the hydraulic rod three 730 moves up and down, the liquid pressure in the two-way hydraulic bin 710 changes, at this time the hydraulic rod four 740 circulates to extend or retract, the protrusion 750 is driven to rotate by the hydraulic rod four 740, and then the rotating rod three 720 is driven to rotate by the protrusion 750, as the rotating rod three 720 rotates, the rubber pressing block 770 connected by the elastic telescopic rod 760 rotates, thereby knocking the upper surface of the second filter plate 400, so that the impurities adsorbed on the bottom of the second filter plate 400 fall onto the upper surface of the first filter plate 300, facilitating the cleaning after the maintenance bin door 200 is opened by the staff.

[0044] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high-precision microporous membrane filtration device with a gradient pore size structure, comprising a filter chamber (100), characterized in that, The side of the filter chamber (100) is equipped with a maintenance door (200), and the interior of the filter chamber (100) is equipped with a first filter plate (300) and a second filter plate (400) from bottom to top. The filter chamber (100) is equipped with a high-precision filter assembly (500), which is located downstream of the second filter plate (400). The high-precision filter assembly (500) includes a telescopic filter membrane support (510), in which a high-precision microporous membrane (520) is placed. The telescopic filter membrane support (510) is equipped with two guide plates (530) for guiding exhaust gas. The filter chamber (100) is rotatably connected to a rotating rod (570) at the air inlet. The front end of the rotating rod (570) is equipped with a wind turbine blade (580), and the middle of the rotating rod (570) is equipped with a centrifugal assembly. The filter chamber (100) is equipped with a hydraulic assembly for controlling the extension and retraction of the telescopic filter membrane support (510). The centrifugal assembly includes three hollow slots (590) arranged in a ring array, and each of the three hollow slots (590) is slidably connected to an irregularly shaped rod (5110). The hydraulic assembly includes a three-way hydraulic chamber (540) fixed inside the filter chamber (100). One end of the three-way hydraulic chamber (540) is slidably connected to a hydraulic rod (550) fixed to the guide plate (530). The other end of the three-way hydraulic chamber (540) is slidably connected to a hydraulic rod (560), and the hydraulic rod (560) is located on the movement trajectory of the shaped rod (5110).

2. The high-precision microporous membrane filtration device with a gradient pore size structure according to claim 1, characterized in that, Springs (5100) are fixed between the three irregular rods (5110) and the inner wall of the hollow groove (590).

3. The high-precision microporous membrane filtration device with a gradient pore size structure according to claim 1, characterized in that, The outer side of the irregular rod (5110) has an arc-shaped structure, and the arc-shaped portions of the three irregular rods (5110) are in a complete circle in the initial state.

4. The high-precision microporous membrane filtration device with a gradient pore size structure according to claim 1, characterized in that, The end of the hydraulic rod 2 (560) away from the three-way hydraulic chamber (540) is rotatably connected to a ball bearing.

5. The high-precision microporous membrane filtration device with a gradient pore size structure according to claim 1, characterized in that, A cleaning device (600) is installed at the bottom of the first filter plate (300).

6. The high-precision microporous membrane filtration device with a gradient pore size structure according to claim 5, characterized in that, The cleaning device (600) includes an annular rack (610) slidably connected to the bottom of the first filter plate (300) and a rotating rod (640) rotatably connected inside the filter chamber (100). A crossbar (620) is fixed at the inner ring of the annular rack (610), and a brush (630) is mounted on the upper surface of the crossbar (620). A gear (650) that meshes with the annular rack (610) is fixed at the front end of the rotating rod (640). The rotating rod (640) is connected to the rotating rod (570) via a chain (660).

7. The high-precision microporous membrane filtration device with a gradient pore size structure according to claim 1, characterized in that, The upper surface of the second filter plate (400) is equipped with a vibration assembly (700).

8. The high-precision microporous membrane filtration device with a gradient pore size structure according to claim 7, characterized in that, The vibration assembly (700) includes a rotating rod three (720) rotatably connected to the inner wall of the filter chamber (100) and a two-way hydraulic chamber (710) fixed to the side of the three-way hydraulic chamber (540). A protrusion (750) is fixed in the middle of the rotating rod three (720), and multiple elastic telescopic rods (760) are fixed on the outer side of the rotating rod three (720). A rubber pressure block (770) is fixed to the telescopic end of each elastic telescopic rod (760). A hydraulic rod three (730) is slidably connected to the piston at one end of the two-way hydraulic chamber (710) and a hydraulic rod four (740) is slidably connected to the piston at the other end of the two-way hydraulic chamber (710) and a hydraulic rod four (740) is fixed to the side of the protrusion (750).

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