Movable roadway dust remover

Abstract

The utility model discloses a movable roadway dust remover which comprises a movable dust remover shell, an air inlet and an air outlet are respectively formed in the surface of the upper portion of the dust remover shell, and an air inlet flow channel communicated with the air inlet is formed in the dust remover shell. An atomizing device for spraying atomized liquid to the dust-containing airflow and enabling dust in the dust-containing airflow to form dust-containing liquid drops to settle downwards is arranged in the air inlet channel; a circulating groove for collecting dust liquid drops is formed in the lower space in the dust remover shell; the exhaust port is connected with an exhaust flow channel communicated with the circulating groove, and a demister used for capturing small-particle-size dust liquid drops and gathering the small-particle-size dust liquid drops and enabling the small-particle-size dust liquid drops to settle downwards into the circulating groove is arranged in the exhaust flow channel. The dust remover designed by the utility model is simple and light in structure and convenient to move and process. The device comprehensively utilizes atomization washing, turbulent flow condensation, gravity settling, filtering and other devices to purify dust-containing air in a limited space, and is high in dust removal efficiency, high in practicability and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel dust removal, in particular to a mobile tunnel dust collector. Background Art

[0002] A large amount of dust is generated during the construction of mines and road tunnels. Due to the small space of the tunnels, the dust concentration in the tunnels exceeds the standard, affecting the health of the workers.

[0003] At present, dust collectors are widely used in industrial engineering and the purification of dust pollution in limited spaces. Among the several major types of dust collectors, mechanical dust collectors are widely used due to their low cost and simple structure. Mechanical dust collectors have developed into inertial dust collectors, Venturi dust collectors, gravity settling chambers and other structural forms. The advantages of these mechanical demisters are no moving parts and low failure rates, but inertial dust collectors and Venturi dust collectors have large resistance and large volume of gravity settling chambers, which are not suitable for roadway dust removal. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned background technology and to provide a mobile tunnel dust collector with high efficiency, large flue gas treatment capacity, low energy consumption and compact structure.

[0005] To achieve this purpose, the utility model designs a mobile tunnel dust collector, which includes a movable dust collector shell, the upper surface of which is respectively provided with an air inlet and an exhaust port, the dust collector shell is provided with an inlet flow duct connected with the air inlet, the inlet flow duct is provided with an atomizing device for spraying atomized liquid to the dust-laden airflow so that the dust in the dust-laden airflow is captured by droplets; the lower internal space of the dust collector shell is a circulation groove for collecting the dust washing liquid; the exhaust port is connected to an exhaust flow duct connected with the circulation groove, the exhaust flow duct is provided with a demister for capturing small-size dust droplets and causing them to gather and sink downward into the circulation groove.

[0006] Furthermore, a partition is fixed at the inner center of the dust collector shell, and the left and right side surfaces of the partition are vertically fixed to the left and right side inner surfaces of the dust collector shell, and the top surface of the partition is fixed to the top inner surface of the dust collector shell. The space between the bottom surface of the partition and the bottom inner surface of the dust collector shell is the circulation groove, and the partition divides the upper inner space of the dust collector shell into the intake duct and the exhaust duct.

[0007] Furthermore, the inlet flow channel is an S-shaped flow channel that is wide at the upper and lower ends and narrow in the middle.

[0008] Furthermore, an atomizing device is fixed to the upper part and the middle part of the intake air passage respectively.

[0009] Furthermore, the atomizing device comprises an atomizing tube arranged along the width direction of the partition, and a plurality of spray holes facing the dust airflow are arranged on the surface of the atomizing tube at intervals along the length direction thereof.

[0010] Furthermore, a circulation pump is fixed in the circulation tank, which is connected to the atomizing pipe through a pipeline and pumps the upper clear liquid in the circulation tank into the atomizing pipe.

[0011] Furthermore, a filter is provided on the pipeline connecting the circulation pump and the atomization pipe.

[0012] Furthermore, at least two demisters arranged up and down are fixed between the partition and the inner surface of the dust collector shell.

[0013] Furthermore, support plates equal in number to the demisters are fixed between the partition and the inner surface of the dust collector shell, the left and right side surfaces of the support plates are respectively fixed to the left and right side inner surfaces of the dust collector shell, the front and rear side surfaces of the support plates are respectively fixed to the partition and the inner surface of the dust collector shell, the left and right side surfaces of the support plates are located at different heights, and one demister is fixed to each of the support plates.

[0014] Furthermore, the exhaust port is provided with an exhaust fan which exhausts air to the outside of the exhaust port and is fixed in the dust collector housing.

[0015] The utility model has the following beneficial effects: the dust collector designed by the utility model has a simple and light structure, is easy to move, and is convenient to process. It comprehensively utilizes atomization washing, turbulent condensation, gravity sedimentation and filtering devices to achieve dust-laden air purification, has high dust removal efficiency, is highly practical, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the mobile tunnel dust collector in the utility model;

[0017] Figure 2 for Figure 1 Middle AA section view;

[0018] Figure 3 for Figure 1 Middle BB section view;

[0019] Figure 4 This is a front view of the atomizing tube in the utility model;

[0020] Figure 5 It is a cross-sectional view of the mobile roadway dust collector in the utility model located in the roadway;

[0021] Among them, 1 is a dust collector shell, 2 is an air inlet, 3 is an exhaust port, 4 is an inlet flow channel, 5 is a circulation groove, 6 is an exhaust flow channel, 7 is a mist eliminator, 8 is a partition, 9 is an atomizing pipe, 10 is a spray hole, 11 is a circulation pump, 12 is a filter, 13 is a support plate, 14 is an exhaust fan, 15 is a raised bracket, 16 is a liquid level gauge valve, 17 is a mud slide, 18 is a tunnel, and 19 is a support rod. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figure 1 —5, comprises a movable dust collector housing 1, the upper surface of which is respectively provided with an air inlet 2 and an exhaust port 3 (in the present utility model, the direction facing the air inlet 2 is the front, the direction facing the exhaust port 3 is the rear, and the direction perpendicular to the front-to-back direction is the left-right direction for explanation), and an exhaust fan 14 is provided at the exhaust port 3, which is fixed in the dust collector housing 1 and exhausts air to the outside of the exhaust port 3. The dust collector housing 1 is provided with an inlet flow channel 4 connected with the air inlet 2, and an atomizing device is provided in the inlet flow channel 4 for spraying atomized liquid to the dust-containing airflow so that the dust in the dust-containing airflow forms dust droplets and settles downward; the lower space inside the dust collector housing 1 is a circulation tank 5 for collecting dust droplets; the exhaust port 3 is connected with an exhaust flow channel 6 connected with the circulation tank 5, and a mist eliminator 7 is provided in the exhaust flow channel 6 for capturing small-size dust droplets and causing them to aggregate and settle downward in the circulation tank 5.

[0024] like Figure 1 —2, a partition 8 is fixed at the center of the interior of the dust collector housing 1, and the left and right side surfaces of the partition 8 are vertically fixed to the left and right side inner surfaces of the dust collector housing 1, and the top surface of the partition 8 is fixed to the top inner surface of the dust collector housing 1. The space between the bottom surface of the partition 8 and the bottom inner surface of the dust collector housing 1 is a circulation groove 5. The partition 8 divides the upper inner space of the dust collector housing 1 into an inlet flow channel 4 and an exhaust flow channel 6. The inlet flow channel 4 is an S-shaped flow channel that is wide at the upper and lower ends and narrow in the middle. An atomizing device is fixed to the upper and middle parts of the inlet flow channel 4, respectively. The atomizing device includes an atomizing tube 9 arranged along the width direction of the partition 8, and a plurality of spray holes 10 (such as spray holes 10) facing the dust airflow are arranged on its surface along its length direction. Figure 3 —4). A circulation pump 11 is fixed in the circulation tank 5 and is connected to the atomizing pipe 9 through a pipeline to pump the upper clear liquid in the circulation tank 5 into the atomizing pipe 9. A filter 12 is arranged on the pipeline connecting the circulation pump 11 and the atomizing pipe 9.

[0025] The same number of support plates 13 as the demisters 7 are fixed between the partition 8 and the inner surface of the dust collector housing 1. The left and right side surfaces of the support plate 13 are respectively fixed to the left and right side inner surfaces of the dust collector housing 1, and the front and rear side surfaces of the support plate 13 are respectively fixed to the partition 8 and the inner surface of the dust collector housing 1. The left and right side surfaces of the support plate 13 are located at different heights, and a demister 7 is fixed to each support plate 13.

[0026] Specifically, in the embodiment of the utility model, the dust collector housing 1 is a closed box structure made of anti-corrosion material, and the air inlet space and the air outlet space are separated by a partition 8 in the box body at the upper part of the box body, and the air inlet space and the air outlet space are both connected to the lower space in the box body. The inlet flow channel 4 is an S-shaped flow channel, which is formed by a raised bracket 15 and a partition 8, and the left and right sides of the raised bracket 15 are sealed and connected to the left and right side surfaces of the dust collector housing 1. When the dust-containing droplets flow through the S-shaped flow channel, the air flow channel becomes narrower, thereby causing strong turbulence of the air flow, so that the droplet diameter condenses and becomes larger under the action of turbulence. The space connected at the lower part of the box body is the circulation groove 5 of the dust separation zone, and an inclined mud slide 17 is set at the bottom of the circulation groove 5 to facilitate the dust to settle to the bottom of the circulation groove 5. The filter 12 that supplies liquid to the atomizing tube 9 is also set at a certain height below the liquid level of the circulation groove 5. The spray hole 10 of the atomizing tube 9 faces the inlet flow channel 4. The circulation pump 11 extracts the supernatant liquid from the circulation tank 5 through a pipeline equipped with a filter 12, and provides the atomized liquid to the atomizing pipe 9 through a pipeline. The atomizing pipe 9 is made of a nozzle hole 10 with a diameter of 0.1-0.3 mm drilled on a pipe with a diameter of 8-10 mm, and the nozzle holes 10 are 2-3 rows. One end of the atomizing pipe 9 is connected to a pressure water supply pipe, and the other end is closed. The demister 7 is fixed by a support plate 13 and installed at an angle of 35° to the horizontal direction. The demister 7 is arranged on the exhaust flow channel 6 and installed in two parallel rows.

[0027] The dust removal process of the dust collector designed by the utility model is as follows: the dust-laden airflow flows from the air inlet 2 to the inlet flow channel 4, and under the washing effect of the atomized droplets sprayed from the atomizing tube 9, dust droplets are formed. Due to the obstruction of the partition 8, the dust-laden airflow flows to the S-shaped inlet flow channel 4, and is washed again by the atomized droplets in the process of flowing through the inlet flow channel 4, while the fine droplets turbulently condense and "grow up". The "grown" droplets enter the dust separation area, and the dust-laden droplets are separated from the airflow under the action of gravity and fall into the circulation tank 5. Particles with a smaller particle size and flowing with the airflow are captured and separated to form a liquid flow when flowing through the demister 7, and finally fall into the circulation tank 5. The clean airflow is finally discharged through the exhaust port 3. The liquid collected in the circulation tank 5 can be emptied at a fixed time or according to the set liquid level.

[0028] In summary, the dust collector designed by the utility model is structurally provided with a partition 8 to make the air flow flow along a certain path, and constructs an S-shaped flow channel to form a throat of a Venturi structure to increase turbulence. In terms of airflow, it is first washed by droplets at the front end of the inlet flow channel 4, and then washed again and turbulently condensed when passing through the throat of the S-shaped flow channel, first removing a portion of the dust, and then the dust is further purified by the demister 7 when passing through the exhaust flow channel 6. The structure is simple and light, easy to move and convenient to process. The comprehensive use of devices such as atomization washing, turbulent condensation, gravity sedimentation and filtration realizes the purification of dust-laden air in a limited space, with high dust removal efficiency, strong practicality and low cost.

[0029] The above is only a preferred embodiment of the utility model, and does not limit the structure of the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A mobile roadway dust collector, characterized in that: It comprises a movable dust collector housing (1), the upper surface of which is respectively provided with an air inlet (2) and an air outlet (3); the dust collector housing (1) is provided with an air inlet duct (4) in communication with the air inlet (2); the air inlet duct (4) is provided with an atomizing device for spraying atomized liquid to the dust-containing airflow so that dust in the dust-containing airflow is captured by liquid droplets; the lower space inside the dust collector housing (1) is a circulation groove (5) for collecting liquid for washing dust; the air outlet (3) is connected to an exhaust duct (6) in communication with the circulation groove (5); the exhaust duct (6) is provided with a demister (7) for capturing small-diameter dust droplets and causing them to aggregate and sink downward into the circulation groove (5); A partition (8) is fixed at the center of the interior of the dust collector housing (1); the left and right side surfaces of the partition (8) are vertically fixed to the left and right side inner surfaces of the dust collector housing (1); the top surface of the partition (8) is fixed to the top inner surface of the dust collector housing (1); the space between the bottom surface of the partition (8) and the bottom inner surface of the dust collector housing (1) is the circulation groove (5); the partition (8) divides the upper inner space of the dust collector housing (1) into the inlet flow channel (4) and the exhaust flow channel (6); The inlet flow channel (4) is an S-shaped flow channel that is wide at the upper and lower ends and narrow in the middle; At least two demisters (7) arranged vertically are fixed between the partition plate (8) and the inner surface of the dust collector housing (1); The same number of support plates (13) as the number of the demisters (7) are fixed between the partition (8) and the inner surface of the dust collector housing (1); the left and right side surfaces of the support plate (13) are respectively fixed to the left and right side inner surfaces of the dust collector housing (1); the front and rear side surfaces of the support plate (13) are respectively fixed to the partition (8) and the inner surface of the dust collector housing (1); the left and right side surfaces of the support plate (13) are located at different heights; and one demister (7) is fixed to each of the support plates (13); An exhaust fan (14) is provided at the exhaust port (3) and is fixed inside the dust collector housing (1) for exhausting air to the outside of the exhaust port (3); The demister (7) is arranged to be inclined at an angle to the horizontal plane.

2. The mobile roadway dust collector according to claim 1, characterized in that: An atomizing device is respectively fixed to the upper part and the middle part of the inlet flow passage (4).

3. The mobile roadway dust collector according to claim 2, characterized in that: The atomizing device comprises an atomizing tube (9) arranged along the width direction of the partition plate (8), and a plurality of spray holes (10) facing the dust airflow are arranged on the surface of the atomizing tube (9) at intervals along the length direction thereof.

4. The mobile roadway dust collector according to claim 3, characterized in that: A circulation pump (11) is fixed in the circulation tank (5) and is connected to the atomization pipe (9) through a pipeline, and pumps the upper clear liquid in the circulation tank (5) into the atomization pipe (9).

5. The mobile roadway dust collector according to claim 4, characterized in that: A filter (12) is provided on the pipeline connecting the circulation pump (11) and the atomization pipe (9).

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