Landfill gas particulate matter filtering device

Abstract

The utility model discloses a landfill gas particulate matter filtering device which comprises a filtering box and a collecting well, the collecting well is communicated with the filtering box through a connecting pipe, a filtering net is arranged in the filtering box, a cleaning mechanism used for cleaning the filtering net is arranged in the filtering box, and the collecting well is communicated with the filtering box through a connecting pipe. The cleaning mechanism comprises a scraping plate slidably connected between the inner walls of the two ends of the filter box, the side wall of the scraping plate makes contact with the side wall of the filter screen, the scraping plate is designed to be trapezoidal, and a moving mechanism used for moving the scraping plate and a guide mechanism are arranged in the filter box; a collecting mechanism used for collecting scraped impurities is arranged on the rear wall of the filtering box, and a driving mechanism used for driving the moving mechanism is arranged in the connecting pipe. The filtering device is reasonable in structure, impurities are cleaned by arranging the cleaning mechanism, the moving mechanism and the transmission mechanism, and the situation that the filtering effect is affected due to impurity blockage can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to landfill gas filtration technical field especially relates to a landfill gas particulate matter filter device. BACKGROUND

[0002] With the acceleration of urbanization process, garbage production quantity is rising unceasingly, and landfill is a common garbage disposal mode. In the landfill, organic garbage is decomposed under anaerobic condition, and landfill gas is generated. Landfill gas is a kind of complex mixed gas, in addition to main components methane and carbon dioxide, also contains hydrogen sulfide, ammonia and other harmful gases and various particulate matters.

[0003] In the process of landfill gas collection and utilization, in order to ensure the purity of gas, the particulate impurities in the gas need to be filtered, in the prior art, although the traditional filter device can filter and block the particulate impurities in the gas through the filter screen, but after a long time, a large amount of particulate impurities will be adsorbed on the filter screen, and the filter screen will be blocked after a long time, so that the staff needs to clean or replace, and the degree of automation is low, therefore, the utility model provides a landfill gas particulate matter filter device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a landfill gas particulate matter filter device.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A landfill gas particulate matter filter device, including filter box and collection well, the collection well and filter box adopt connecting pipe and communicate, the filter box is provided with filter screen, the filter box is provided with cleaning mechanism for cleaning filter screen, the cleaning mechanism includes the scraper that is slidably connected between the inner wall of the both ends of filter box, the side wall of scraper is in contact with the side wall of filter screen, and the scraper is trapezoidal design, the filter box is provided with moving mechanism and guide mechanism for moving scraper, the rear wall of filter box is provided with collection mechanism for collecting the impurities that fall off, the connecting pipe is provided with driving mechanism for driving moving mechanism.

[0007] Preferably, the moving mechanism includes reciprocating screw rod that is rotatably connected between the inner bottom and the inner top of filter box, and the reciprocating screw rod passes through the scraper and is matched with the same.

[0008] Preferably, the guide mechanism includes limiting rod that is fixedly connected between the inner top and the inner bottom of filter box, and the limiting rod passes through the scraper and is slidably connected with the same.

[0009] Preferably, the driving mechanism comprises a horizontal rod rotatably connected to the side wall of the filter box, and the end of the horizontal rod is fixedly sleeved with an axial flow fan blade, the side wall of the connecting pipe is rotatably connected with a transmission rod, and the transmission rod and the horizontal rod are both fixedly sleeved with a bevel gear, and the two bevel gears are engaged.

[0010] Preferably, the end of the transmission rod and the end of the reciprocating lead screw are both fixedly sleeved with a transmission wheel, and the two transmission wheels are connected through a belt.

[0011] Preferably, the collecting mechanism comprises a collecting box mounted on the rear wall of the filter box, and the collecting box is communicated with the filter box through a through hole.

[0012] Preferably, the two end side walls of the collecting box are both fixedly connected with a vertical plate, and the two vertical plates are fixedly connected with the filter box through two screws.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1. By setting up the cleaning mechanism, the moving mechanism and the transmission mechanism, the air pump is connected with the exhaust pipe of the filter box, the air pump is started, the gas in the collection well is extracted, the extracted gas enters the filter box, the impurities are filtered when passing through the filter screen, the axial flow fan blade is driven to rotate when the gas passes through the connecting pipe, the axial flow fan blade drives the horizontal rod to rotate, the transmission rod is rotated under the action of the bevel gear, the reciprocating lead screw is rotated under the transmission of the belt and the transmission wheel, the scraper is reciprocally moved under the cooperation of the reciprocating lead screw, the scraper is reciprocally wiped on the surface of the filter screen, the impurities are cleaned, the impurities are effectively avoided from being blocked, and the filtering effect is affected.

[0015] 2. By setting up the collecting mechanism and the cleaning mechanism, the scraper is designed in trapezoidal shape, the upper end is inclined, the impurities on the filter screen slide along the inclined surface when being scraped upward, the impurities slide into the collecting box along the inclined surface when the scraper moves to the through hole, the impurities are collected, and the impurities are avoided from being accumulated in the filter box. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of a landfill gas particulate matter filtering device is provided for the utility model;

[0017] Figure 2 A rear side perspective view of a landfill gas particulate matter filtering device is provided for the utility model;

[0018] Figure 3 A sectional perspective view of a landfill gas particulate matter filtering device is provided for the utility model;

[0019] Figure 4The utility model provides a kind of landfill gas particulate filter device's section elevation perspective view is proposed in the utility model.

[0020] Figure 5 The utility model provides a kind of landfill gas particulate filter device's section front view is proposed in the utility model.

[0021] Figure 6 For Figure 5 The structure of A in the figure is enlarged.

[0022] In the figure: 1 filter box, 2 collection well, 3 well head, 4 connecting pipe, 5 belt, 6 connecting plate, 7 collection box, 8 filter screen, 9 reciprocating screw, 10 limit rod, 11 scraper, 12 transmission rod, 13 through hole, 14 cross bar, 15 bevel gear, 16 axial fan blade. DETAILED DESCRIPTION

[0023] To make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0024] Referring to Figures 1-6 , a landfill gas particulate filter device, comprising filter box 1 and collection well 2, collection well 2 and filter box 1 are communicated by connecting pipe 4, filter screen 8 is arranged in filter box 1, cleaning mechanism for cleaning filter screen 8 is arranged in filter box 1, scraper 11 is slidably connected between the inner walls of both ends of filter box 1, the side wall of scraper 11 is in contact with the side wall of filter screen 8, and scraper 11 is designed as trapezoidal, the upper end is inclined, when scraping upward, the impurities on filter screen 8 will slide down along the slope, exhaust pipe is arranged on filter box 1, and air pump is connected to the exhaust pipe.

[0025] Filter box 1 is provided with moving mechanism and guide mechanism for moving scraper 11, moving mechanism comprises reciprocating screw 9 rotatably connected between the inner bottom and the inner top of filter box 1, reciprocating screw 9 passes through scraper 11 and cooperates with it, guide mechanism comprises limit rod 10 fixedly connected between the inner top and the inner bottom of filter box 1, limit rod 10 passes through scraper 11 and is slidably connected with it.

[0026] The rear wall of the filter box 1 is provided with a collecting mechanism for collecting the scraped impurities, the collecting mechanism comprises a collecting box 7 mounted on the rear wall of the filter box 1, the collecting box 7 is communicated with the filter box 1 through a through hole 13, vertical plates are fixedly connected to the two end side walls of the collecting box 7, the two vertical plates are fixedly connected with the filter box 1 through two screws, and the collecting box 7 is detachably connected with the filter box 1, and the collecting box 7 can be detached and cleaned when the collected impurities are relatively large.

[0027] The connecting pipe 4 is provided with a driving mechanism for driving the moving mechanism, the driving mechanism comprises a horizontal rod 14 rotatably connected to the side wall of the filter box 1, an axial flow fan blade 16 is sleeved on the end of the horizontal rod 14, a transmission rod 12 is rotatably connected to the side wall of the connecting pipe 4, taper gears 15 are fixedly sleeved on the horizontal rod 14 and the transmission rod 12, the two taper gears 15 are meshed, transmission wheels are fixedly sleeved on the end of the transmission rod 12 and the end of the reciprocating lead screw 9, and the two transmission wheels are transmissionally connected through a belt 5; the axial flow fan blade 16 is rotated, the reciprocating lead screw 9 is driven, and an additional driving source is not needed, so that the energy consumption is reduced.

[0028] In use, the air pump is connected with the exhaust pipe of the filter box 1, the air pump is started, the gas in the collecting well 2 is extracted, the extracted gas enters the filter box 1, the impurities are filtered when passing through the filter screen 8, the axial flow fan blade 16 is driven to rotate when the gas passes through the connecting pipe 4, the axial flow fan blade 16 drives the horizontal rod 14 to rotate, the transmission rod 12 is rotated under the action of the taper gears 15, the reciprocating lead screw 9 is rotated under the transmission of the belt 5 and the transmission wheels, the scraper 11 cooperated with the reciprocating lead screw 9 is reciprocally moved, the scraper 11 is reciprocally wiped on the surface of the filter screen 8, the impurities are cleaned, the impurities are effectively avoided from being blocked, and the filtering effect is affected; the scraper 11 is designed in a trapezoidal shape, the upper end is inclined, the impurities on the filter screen 8 slide along the inclined surface when being scraped upward, the impurities slide into the collecting box 7 when the scraper 11 moves to the through hole 13, the one end of the scraper 11 is located at the through hole 13, the impurities slide into the collecting box 7 along the inclined surface, the impurities are collected, and the impurities are avoided from being accumulated in the filter box 1.

[0029] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms, any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the utility model still belongs to the protection scope of the utility model technical scheme.

Claims

1. A landfill gas particulate filtering device comprising a filtering box (1) and a collecting well (2), characterized in that, The collecting well (2) is communicated with the filter box (1) through a connecting pipe (4), the filter box (1) is provided with a filter screen (8), the filter box (1) is provided with a cleaning mechanism for cleaning the filter screen (8), the cleaning mechanism comprises a scraper (11) which is slidably connected between the inner walls of the two ends of the filter box (1), the side wall of the scraper (11) is in contact with the side wall of the filter screen (8), and the scraper (11) is designed in a trapezoidal shape, the filter box (1) is provided with a moving mechanism and a guide mechanism for moving the scraper (11), the rear wall of the filter box (1) is provided with a collecting mechanism for collecting the scraped impurities, and the connecting pipe (4) is provided with a driving mechanism for driving the moving mechanism.

2. A landfill gas particulate filter apparatus according to claim 1, wherein, The moving mechanism comprises a reciprocating screw rod (9) which is rotatably connected between the inner bottom and the inner top of the filter box (1), and the reciprocating screw rod (9) passes through the scraper (11) and is matched with the scraper (11).

3. A landfill gas particulate filter apparatus according to claim 2, wherein, The guide mechanism comprises a limiting rod (10) which is fixedly connected between the inner top and the inner bottom of the filter box (1), and the limiting rod (10) passes through the scraper (11) and is slidably connected with the scraper (11).

4. A landfill gas particulate filter apparatus according to claim 3, wherein, The driving mechanism comprises a cross rod (14) which is rotatably connected to the side wall of the filter box (1), the end of the cross rod (14) is fixedly sleeved with an axial fan blade (16), the side wall of the connecting pipe (4) is rotatably connected with a transmission rod (12), the transmission rod (12) and the cross rod (14) are fixedly sleeved with a bevel gear (15), and the two bevel gears (15) are meshed.

5. A landfill gas particulate filter apparatus according to claim 4, wherein, The end of the transmission rod (12) and the end of the reciprocating screw rod (9) are fixedly sleeved with a transmission wheel, and the two transmission wheels are drivingly connected through a belt (5).

6. A landfill gas particulate filter apparatus according to claim 5, wherein, The collecting mechanism comprises a collecting box (7) mounted on the rear wall of the filter box (1), and the collecting box (7) is communicated with the filter box (1) through a through hole (13).

7. A landfill gas particulate filter apparatus according to claim 6, wherein, The two end side walls of the collecting box (7) are fixedly connected with vertical plates, and the two vertical plates are fixedly connected with the filter box (1) through two screws.

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