Filtering device for compressed air in underground coal mine

Abstract

The utility model relates to the technical field of coal mine ventilation equipment, and discloses a coal mine underground compressed air filtering device which comprises a machine box, an air inlet pipe is fixed to the right end of the machine box, an air outlet pipe is fixed to the left end of the machine box, and an air blower and a negative pressure machine are fixed to the middle of the upper portion of the machine box. An outer forward and reverse rotation motor is fixed to the outer side of the upper portion of the machine box, a filter plate sliding rail is fixed to the left side of the interior of the machine box, a filter element sliding rail is fixed to the right side of the interior of the machine box, a filter plate is movably connected to the filter plate sliding rail in an inserted mode, and a first sliding plate, a second sliding plate and a third sliding plate are movably connected to the three filter plate sliding rails in an inserted mode respectively. The first sliding plate, the second sliding plate and the third sliding plate are each provided with a filter screen. According to the filtering device for compressed air in the underground coal mine, air can be preliminarily filtered through the filtering plate, impurities on the filtering plate can be cleared away, the air can be filtered again through the three filtering nets, and the air filtering quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine ventilation equipment technical field, concretely is a kind of filter device for coal mine underground pressure wind. BACKGROUND

[0002] Coal mine ventilation is one of the important links of coal mine safety production, and its basic task is to supply enough fresh air underground, meet the needs of personnel to oxygen, dilute underground harmful gas and dust, ensure safety production, adjust underground climate, and create a good working environment;

[0003] The existing coal mine ventilation equipment is directly ventilated into air underground when ventilating underground, but there are a large number of particulate impurities in the air of coal mine operation area, if the air containing particulate matter is directly ventilated into underground, the air quality of underground will be reduced, in order to improve the ventilation quality of underground, filter plate is added in the existing coal mine ventilation equipment, but the impurities on the filter plate are not easy to clean after long-term use, and the impurities on the filter plate may also enter underground with air, which will also reduce the ventilation quality. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a filter device for coal mine underground pressure wind, which solves the problem that the impurities on the filter plate are not easy to clean when the coal mine ventilation equipment is used.

[0006] (II) technical scheme

[0007] In order to achieve the purpose of facilitating the cleaning of impurities on the filter plate when the coal mine ventilation equipment is used, the utility model provides the following technical scheme: a filter device for coal mine underground pressure wind, comprising a case, the right end of the case is fixed with an air inlet pipe, the left end is fixed with an air outlet pipe, the upper middle part of the case is fixed with a blower and a negative pressure machine respectively, the outer side of the upper part of the case is fixed with an outer positive and negative rotation motor, the left side of the inside of the case is fixed with a filter plate sliding rail, the right side of the inside of the case is fixed with a filter core sliding rail, a filter plate is movably inserted on the filter plate sliding rail, three groups of core sliding rails are movably inserted with a first sliding plate, a second sliding plate and a third sliding plate respectively, and filter screens are arranged on the first sliding plate, the second sliding plate and the third sliding plate;

[0008] The gap between the first slide plate and the second slide plate forms a first channel, the gap between the second slide plate and the third slide plate forms a second channel, the output end of the outer forward-reverse motor is fixed with a lead screw, and the bottom end of the lead screw is rotationally connected with the cabinet, the left side of the filter plate is provided with a left cleaning seat, the right side of the filter plate is provided with a right cleaning seat, the left side of the left cleaning seat is provided with a ventilation hose, the right side of the right cleaning seat is provided with an absorption hose, the inside of the left cleaning seat is fixed with an air outlet plate, both ends of the right cleaning seat are fixed with an inner forward-reverse motor, the output end of the inner forward-reverse motor is fixed with a drive shaft, and the drive shaft is fixed with a spiral blade.

[0009] Preferably, the left cleaning seat and the right cleaning seat are both open on the side close to the filter plate.

[0010] Preferably, the spiral blade is in contact with the filter plate, the air outlet plate is an open plate, and the opening is a horn shape.

[0011] Preferably, one end of the ventilation hose is fixedly connected with the air blower, the other end is fixedly connected with the air outlet plate, one end of the absorption hose is fixedly connected with the negative pressure machine, and the other end is fixedly connected with the right cleaning seat.

[0012] Preferably, the left lead screw penetrates through the left cleaning seat and is threadedly connected with the left cleaning seat, and the right lead screw penetrates through the right cleaning seat and is threadedly connected with the right cleaning seat.

[0013] Preferably, the filter screen slide rails are provided with three groups in the left-right direction, and each group is provided with two in the up-down direction.

[0014] Preferably, the lower portions of the first slide plate and the third slide plate are respectively provided with openings, and the upper portion of the second slide plate is provided with an opening, and the filter screen is arranged at the opening.

[0015] Preferably, the air flow direction of the first channel is upward, and the air flow direction of the second channel is downward.

[0016] Compared with the prior art, the filter device for underground compressed air of coal mines has the following beneficial effects:

[0017] 1. The filter device for underground compressed air of coal mines can change the flow direction of air through the first slide plate, the second slide plate and the third slide plate, and the air can be filtered through the filter screens on the first slide plate, the second slide plate and the third slide plate, so that the travel of air can be increased, and the air can be filtered multiple times, thereby improving the filtering quality of air.

[0018] 2. The filtering device for underground compressed air of coal mine, the impurities adhered to the right side of the filter plate can be scraped and cleaned by the spiral blade during the reciprocating movement of the left cleaning seat and the right cleaning seat on the upper and lower sides of the filter plate, the scraped and cleaned impurities fall in the inner cavity of the right cleaning seat, the filter plate can be blown to the right by the air blower through the air outlet plate, the impurities on the filter plate are blown into the inner cavity of the right cleaning seat, and the impurities in the inner cavity of the right cleaning seat can be absorbed and cleaned by the negative pressure machine through the absorption hose. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is an internal schematic diagram of a structural case of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the utility model Figure 2 It is a local enlarged schematic diagram of structure A of the utility model;

[0022] Figure 4 It is a local sectional view of the left cleaning seat and the right cleaning seat of the utility model structure;

[0023] Figure 5 It is a local enlarged schematic diagram of structure B of the utility model; Figure 4

[0024] Wherein: 1, case; 2, air inlet pipe; 3, air outlet pipe; 4, air blower; 5, negative pressure machine; 6, outer forward-reverse motor; 7, filter plate slide rail; 8, filter screen slide rail; 9, filter plate; 10, No. 1 slide plate; 11, No. 2 slide plate; 12, No. 3 slide plate; 13, filter screen; 14, first channel; 15, second channel; 16, screw rod; 17, left cleaning seat; 18, right cleaning seat; 19, ventilation hose; 20, absorption hose; 21, air outlet plate; 22, inner forward-reverse motor; 23, drive shaft; 24, spiral blade. DETAILED DESCRIPTION

[0025] ​In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 utility model and simplifying the description, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-5 The utility model provides a kind of filter device for coal mine underground pressure wind, including case 1, the right end of case 1 is fixed with air inlet pipe 2, left end is fixed with air outlet pipe 3, the upper middle part of case 1 is respectively fixed with air blower 4 and negative pressure machine 5, the outside of the upper of case 1 is fixed with outer positive and negative motor 6, the left side in the inside of case 1 is fixed with filter plate slide rail 7, the right side in the inside of case 1 is fixed with filter screen slide rail 8, filter plate 9 is movably inserted on filter plate slide rail 7, three groups of filter screen slide rail 8 are respectively movably inserted with No.

[0027] The gap between No. 1 sliding plate 10 and No. 2 sliding plate 11 forms first channel 14, the gap between No. 2 sliding plate 11 and No. 3 sliding plate 12 forms second channel 15, the output end of outer positive and negative motor 6 is fixed with lead screw 16, and the bottom end of lead screw 16 is rotatably connected with case 1, the left side of filter plate 9 is provided with left cleaning seat 17, the right side is provided with right cleaning seat 18, the left side of left cleaning seat 17 is provided with ventilation hose 19, the right side of right cleaning seat 18 is provided with absorption hose 20, the inside of left cleaning seat 17 is fixed with air outlet plate 21, both ends of right cleaning seat 18 are fixed with inner positive and negative motor 22, the output end of inner positive and negative motor 22 is fixed with driving shaft 23, helical blade 24 is fixed on driving shaft 23, external air enters into the inside of case 1 from air inlet pipe 2, and the impurities in the air are preliminarily filtered by filter plate 9, then filtered by filter screen 13 on No. 1 sliding plate 10, No. 2 sliding plate 11 and No. 3 sliding plate 12, and finally discharged by air outlet pipe 3.

[0028] Further, the left cleaning seat 17 and the right cleaning seat 18 are open on one side close to the filter plate 9, and the left cleaning seat 17 and the right cleaning seat 18 are symmetrically arranged, so that the impurities scraped by the spiral blade 24 can fall into the inner cavity of the right cleaning seat 18, and the impurities blown by the air outlet plate 21 can also fall into the inner cavity of the right cleaning seat 18, so that the impurities on the filter plate 9 can be prevented from entering the well along with the air.

[0029] Further, the spiral blade 24 is in contact with the filter plate 9, the air outlet plate 21 is an open plate, and the opening is a horn shape, and the spiral blade 24 can scrape the impurities attached to the right side of the filter plate 9.

[0030] Further, one end of the ventilation hose 19 is fixedly connected with the air blower 4, the other end is fixedly connected with the air outlet plate 21, one end of the suction hose 20 is fixedly connected with the negative pressure machine 5, and the other end is fixedly connected with the right cleaning seat 18. The air blower 4 can blow air to the right of the filter plate 9 through the air outlet plate 21, and the impurities on the filter plate 9 can be blown into the inner cavity of the right cleaning seat 18. The negative pressure machine 5 can absorb and clean the impurities in the inner cavity of the right cleaning seat 18 through the suction hose 20.

[0031] Further, the left screw rod 16 penetrates through the left cleaning seat 17 and is threadedly connected with the left cleaning seat 17, and the right screw rod 16 penetrates through the right cleaning seat 18 and is threadedly connected with the right cleaning seat 18, so that the left cleaning seat 17 and the right cleaning seat 18 can be driven to move up and down by the two screw rods 16.

[0032] Further, the filter screen sliding rail 8 is provided with three groups in the left-right direction, and each group is provided with two groups in the up-down direction. The cover plates at the front and rear ends of the cabinet 1 can be opened, so that the first slide plate 10, the second slide plate 11 and the third slide plate 12 can be quickly disassembled and installed, and the cover plates can be fixed on the cabinet 1 by bolts, and the first slide plate 10, the second slide plate 11 and the third slide plate 12 can be fixed by the cover plates. The same reason can also be used to quickly disassemble, replace and install the filter plate 9.

[0033] Further, the lower part of the first slide plate 10 and the third slide plate 12 is respectively provided with an opening, and the upper part of the second slide plate 11 is provided with an opening, and the filter screen 13 is arranged at the opening, so that the filter screen 13 of the first slide plate 10, the second slide plate 11 and the third slide plate 12 can filter the air multiple times.

[0034] Further, the air flow direction of the first channel 14 is upward, and the air flow direction of the second channel 15 is downward, so as to change the flow direction of the air, increase the travel of the air, and filter the air multiple times.

[0035] In use, the outside air enters into the cabinet 1 by the air inlet pipe 2, and the impurities in the air are preliminarily filtered by the filter plate 9, the air filtered by the filter plate 9 enters into the right side of the first slide plate 10, and the air is filtered by the filter screen 13 below the first slide plate 10, at this time, the filtered air enters into the first channel 14 and flows upward, the air flowing upward is filtered by the filter screen 13 above the second slide plate 11, at this time, the filtered air enters into the second channel 15 and flows downward, the air flowing downward is filtered again by the filter screen 13 below the third slide plate 12, and finally, the air is discharged into the underground by the air outlet pipe 3, thus the flow direction of the air can be changed by the first slide plate 10, the second slide plate 11 and the third slide plate 12, the travel of the air is increased, and the air is filtered multiple times, so that the filtering quality of the air can be improved, in addition, when the impurities attached to the right side surface of the filter plate 9 need to be cleaned, the left and right reversible motors 6 are started at the same time to drive the lead screws 16 to rotate, thus the left and right cleaning seats 17 and 18 can be driven to move up and down reciprocatingly by the left and right lead screws 16 at the same time, and in the process of moving up and down reciprocatingly on the left and right sides of the filter plate 9, the inner reversible motor 22 can drive the spiral blade 24 to rotate by the driving shaft 23, the impurities attached to the right side surface of the filter plate 9 can be scraped and cleaned by the spiral blade 24, the scraped and cleaned impurities fall into the inner cavity of the right cleaning seat 18, at the same time, the air blower 4 and the negative pressure machine 5 are started, the air blower 4 can blow air to the right of the filter plate 9 by the air outlet plate 21, and the impurities on the filter plate 9 are blown into the inner cavity of the right cleaning seat 18, at the same time, the negative pressure machine 5 can absorb and clean the impurities in the inner cavity of the right cleaning seat 18 by the suction hose 20, finally, the negative pressure machine 5 is opened to clean the impurities in the inner cavity.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration device for compressed air in underground coal mines, comprising a housing (1), characterized in that: An air inlet pipe (2) is fixed at the right end of the casing (1), and an air outlet pipe (3) is fixed at the left end. A blower (4) and a negative pressure machine (5) are fixed at the upper middle part of the casing (1). An external forward and reverse motor (6) is fixed at the upper outer side of the casing (1). A filter plate slide rail (7) is fixed at the left side inside the casing (1). A filter screen slide rail (8) is fixed at the right side inside the casing (1). A filter plate (9) is movably inserted on the filter plate slide rail (7). A first slide plate (10), a second slide plate (11), and a third slide plate (12) are movably inserted on the three sets of filter screen slide rails (8). A filter screen (13) is provided on the first slide plate (10), the second slide plate (11), and the third slide plate (12). The gap between the first slide plate (10) and the second slide plate (11) forms a first channel (14), and the gap between the second slide plate (11) and the third slide plate (12) forms a second channel (15). The output end of the external reversible motor (6) is fixed with a lead screw (16), and the bottom end of the lead screw (16) is rotatably connected to the housing (1). A left cleaning seat (17) is provided on the left side of the filter plate (9), and a right cleaning seat (18) is provided on the right side. A ventilation hose (19) is provided on the left side of the left cleaning seat (17), and an absorption hose (20) is provided on the right side of the right cleaning seat (18). An air outlet plate (21) is fixed inside the left cleaning seat (17), and an internal reversible motor (22) is fixed at both ends of the right cleaning seat (18). A drive shaft (23) is fixed at the output end of the internal reversible motor (22), and a spiral blade (24) is fixed on the drive shaft (23).

2. The filtration device for compressed air in underground coal mines according to claim 1, characterized in that: The left cleaning seat (17) and the right cleaning seat (18) are both open on the side near the filter plate (9).

3. A filtration device for compressed air in underground coal mines according to claim 1, characterized in that: The spiral blade (24) is in contact with the filter plate (9), and the air outlet plate (21) is an open plate with a horn-shaped opening.

4. A filtration device for compressed air in underground coal mines according to claim 1, characterized in that: One end of the ventilation hose (19) is fixedly connected to the blower (4), and the other end is fixedly connected to the air outlet plate (21). One end of the absorption hose (20) is fixedly connected to the negative pressure machine (5), and the other end is fixedly connected to the right cleaning seat (18).

5. A filtration device for compressed air in underground coal mines according to claim 1, characterized in that: The lead screw (16) on the left passes through the left cleaning seat (17) and is threadedly connected to the left cleaning seat (17). The lead screw (16) on the right passes through the right cleaning seat (18) and is threadedly connected to the right cleaning seat (18).

6. A filtration device for compressed air in underground coal mines according to claim 1, characterized in that: The filter slide rail (8) is arranged in three sets in the left and right directions, with two sets in each set.

7. A filtration device for compressed air in underground coal mines according to claim 1, characterized in that: The first slide (10) and the third slide (12) are respectively provided with openings at the bottom, and the second slide (11) is provided with an opening at the top, and a filter screen (13) is provided at the opening.

8. A filtration device for compressed air in underground coal mines according to claim 1, characterized in that: The airflow direction of the first channel (14) is upward, and the airflow direction of the second channel (15) is downward.

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