Forced wet dust collector

Abstract

According to the forced wet type dust collector provided by the utility model, foul gas sequentially passes through the primary cleaning bin, the secondary cleaning bin and the tertiary cleaning bin, so that tertiary cleaning of the foul gas is realized, and dust in the foul gas is effectively removed. According to primary cleaning of foul gas, the foul gas is introduced in the tangential direction of an inner cavity of a primary cleaning bin, so that dust in the foul gas collides with the inner wall of the primary cleaning bin, the downward settling speed of the dust is increased, liquid is sprayed downwards from a liquid spraying opening, the settled dust makes contact with liquid in a bumpy groove, and separation of the dust in the foul gas is achieved; the foul gas moves upwards from the bottom of the cleaning cavity, the dust is filtered by a filler Pall ring, meanwhile, a vertical spraying pipe sprays mother liquor to the foul gas, and the dust is further separated; the second-stage cleaning and the third-stage cleaning of foul gas are both realized through the cooperation of a plurality of groups of filter layer fillers and spray headers, so that dust is separated, and finally, clean nitrogen is extracted by a centrifugal fan after water is removed by the filter layer fillers.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal equipment, and in particular relates to a forced wet dust collector. Background Art

[0002] During the processing of alumina ore, dust will inevitably be generated. Since dust has a great impact on the environment and the health of workers, it is necessary to deal with the dust. Generally, nitrogen and dust are used to form turbid gas, and then the turbid gas is filtered by dust bags to separate the dust from nitrogen. However, due to the high temperature and high humidity of turbid gas, it is very easy to cause the dust bag to be blocked when passing through the dust bag, resulting in poor dust removal effect.

[0003] Therefore, there is an urgent need for a wet dust collector to solve the above technical problems. Utility Model Content

[0004] In order to solve the shortcomings and deficiencies of the prior art, a forced wet dust collector is provided, thereby solving the problem that the dust bag is easily blocked due to the high temperature and humidity of the existing turbid air.

[0005] A forced wet dust collector is provided to achieve the purpose of the utility model, including a clarification tank, in which a certain amount of liquid is filled, a support frame is arranged on the top of the clarification tank, and a primary cleaning bin, a secondary cleaning bin and a tertiary cleaning bin are installed on the support frame from left to right in sequence, so as to realize multi-stage dust removal of turbid air, the bottoms of the primary cleaning bin, the secondary cleaning bin and the tertiary cleaning bin are all extended below the liquid level of the clarification tank, so as to realize bottom liquid sealing and dust adsorption, an air inlet is opened in the tangential direction of the side wall of the primary cleaning bin, so as to make the dust in the turbid air collide with the inner wall of the primary cleaning bin and fall into the bottom, the primary cleaning bin, the secondary cleaning bin and the tertiary cleaning bin are all connected with a mother liquid pipe, so as to realize the spraying of dust in the turbid air, the primary cleaning bin and the secondary cleaning bin, and the secondary cleaning bin and the tertiary cleaning bin are all connected through a turbid air pipe, the top of the tertiary cleaning bin is connected with a centrifugal fan, and air is exhausted to ensure that the turbid air passes through the primary cleaning bin, the secondary cleaning bin and the tertiary cleaning bin in sequence.

[0006] As a further improvement of the above scheme, a plurality of liquid spray ports are provided at the top of the primary cleaning bin, so as to realize liquid spraying into the inner cavity of the primary cleaning bin and thus complete the cleaning of the turbid air. A cleaning chamber is sleeved in the inner cavity of the primary cleaning bin, and a packing ball ring is provided at the bottom of the inner cavity of the cleaning chamber for filtering dust in the turbid air. An upright spray pipe is provided in the middle of the cleaning chamber, and the upright spray pipe is connected with the mother liquid pipe to realize liquid spraying into the dust in the turbid air. The top of the cleaning chamber is connected with one end of the first turbid air pipe, so that the turbid air after the initial cleaning enters the secondary cleaning bin.

[0007] As a further improvement of the above scheme, multiple layers of filter layer fillers are arranged from top to bottom in the inner cavity of the secondary cleaning bin, which are used to filter dust in the turbid air. Spray heads are arranged above the filter layer fillers, and the spray heads are connected to the mother liquid pipe. The lower side wall of the secondary cleaning bin is connected to the other end of the first turbid air pipe, so that the turbid air after the initial cleaning passes through the multiple layers of filter layer fillers in turn, and the top of the secondary cleaning bin is connected to one end of the second turbid air pipe, so that the turbid air after the secondary cleaning enters the tertiary cleaning bin.

[0008] As a further improvement of the above scheme, multiple layers of filter layer fillers are arranged from top to bottom in the inner cavity of the tertiary cleaning bin, which are used to filter dust in the turbid air, and spray heads are arranged above the filter layer fillers, and the spray heads are connected to the mother liquid pipe. The lower side wall of the tertiary cleaning bin is connected to the other end of the second turbid air pipe, so that the turbid air after the second cleaning passes through the multiple layers of filter layer fillers in turn, and a water filter layer filler is arranged above the topmost filter layer filler, which is used to remove moisture in the turbid air. The top of the tertiary cleaning bin is connected to the exhaust port of the centrifugal fan, which is used to extract the turbid air after cleaning.

[0009] As a further improvement of the above solution, a plurality of groups of spray nozzles are arranged on the side wall of the vertical spray pipe to further improve the spray effect.

[0010] As a further improvement of the above solution, a plurality of spray pipes are arranged around the spray head to further improve the spraying effect.

[0011] The beneficial effects of the utility model are:

[0012] Compared with the prior art, the utility model provides a forced wet dust collector, which realizes three-stage cleaning of the turbid air by passing the turbid air through the primary cleaning bin, the secondary cleaning bin and the tertiary cleaning bin in sequence, thereby effectively removing dust in the turbid air and improving the dust collection efficiency of the turbid air.

[0013] The first-level cleaning of the turbid air is to let the turbid air enter the primary cleaning bin from the air inlet. Since the turbid air is introduced along the tangent direction of the inner cavity of the primary cleaning bin, the dust in the turbid air collides with the inner wall of the primary cleaning bin, which accelerates the speed of the dust settling downwards. In addition, the liquid is sprayed downward from the liquid spray port, which further accelerates the speed of the dust settling downwards. The settled dust contacts the liquid in the condensation tank, and the dust in the turbid air is separated; the turbid air then moves upward from the bottom of the cleaning chamber, and the dust is filtered by the ball ring of the packing, which further causes the dust to settle downwards and contact the liquid in the condensation tank. At the same time, the vertical spray pipe sprays the mother liquid to the turbid air, which further separates the dust; the second-level cleaning and third-level cleaning of the turbid air are both achieved through the cooperation of multiple groups of filter layer packing + spray head to separate the dust. Finally, the clean nitrogen is removed by the centrifugal fan after the water is removed by the water filter layer packing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 It is a schematic diagram of the connection between the mother liquid pipe, the upright spray pipe and the spray head in the utility model.

[0017] Among them: 1-chemical tank, 2-support frame, 3-primary cleaning bin, 4-cleaning chamber, 5-air inlet, 6-liquid spray port, 7-vertical spray pipe, 8-dirty air pipe, 9-secondary cleaning bin, 10-spray head, 11-filter layer filler, 12-mother liquid pipe, 13-centrifugal fan, 14-water filter layer filler, 15-tertiary cleaning bin, 16-filler ball ring. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings:

[0019] The utility model provides a forced wet dust collector, including a blister tank 1, a certain amount of liquid is contained in the blister tank 1, a support frame 2 is arranged on the top of the blister tank 1, and a primary cleaning bin 3, a secondary cleaning bin 9 and a tertiary cleaning bin 15 are installed on the support frame 2 from left to right, so as to realize multi-stage dust removal of turbid gas. The bottoms of the primary cleaning bin 3, the secondary cleaning bin 9 and the tertiary cleaning bin 15 are all extended below the liquid level of the blister tank 1 to realize the bottom liquid seal and dust adsorption. The primary cleaning bin 3 is opened in the tangent direction of the side wall There is an air inlet 5, which is used to allow the dust in the turbid air to collide with the inner wall of the primary cleaning bin 3 and then fall to the bottom. The primary cleaning bin 3, the secondary cleaning bin 9, and the tertiary cleaning bin 15 are all connected to the mother liquid pipe 12, which is used to spray the dust in the turbid air. The primary cleaning bin 3 and the secondary cleaning bin 9, and the secondary cleaning bin 9 and the tertiary cleaning bin 15 are all connected through the turbid air pipe 8. The top of the tertiary cleaning bin 15 is connected to the centrifugal fan 13, and air is exhausted to ensure that the turbid air passes through the primary cleaning bin 3, the secondary cleaning bin 9 and the tertiary cleaning bin 15 in sequence.

[0020] A plurality of liquid spray ports 6 are provided at the top of the primary cleaning bin 3, so as to realize liquid spraying into the inner cavity of the primary cleaning bin 3 and thus complete the cleaning of the turbid air. A cleaning chamber 4 is sleeved in the inner cavity of the primary cleaning bin 3, and a packing ball ring 16 is provided at the bottom of the inner cavity of the cleaning chamber 4 for filtering dust in the turbid air. An upright spray pipe 7 is provided in the middle of the cleaning chamber 4, and the upright spray pipe 7 is connected with the mother liquid pipe 12 to realize liquid spraying into the dust in the turbid air. The top of the cleaning chamber 4 is connected with one end of the first turbid air pipe 8, so that the turbid air after the primary cleaning enters the secondary cleaning bin 9, and a plurality of groups of spray nozzles are provided on the side wall of the upright spray pipe 7 for further improving the liquid spraying effect.

[0021] A plurality of filter layer fillers 11 are arranged from top to bottom in the inner cavity of the secondary cleaning bin 9 for filtering dust in the turbid air. A spray head 10 is arranged above the filter layer fillers 11, and the spray head 10 is connected to the mother liquid pipe 12. The lower side wall of the secondary cleaning bin 9 is connected to the other end of the first turbid air pipe 8, so that the turbid air after the initial cleaning passes through the plurality of filter layer fillers 11 in sequence, and the top of the secondary cleaning bin 9 is connected to one end of the second turbid air pipe 8, so that the turbid air after the secondary cleaning enters the tertiary cleaning bin 15.

[0022] A plurality of filter layer fillers 11 are arranged from top to bottom in the inner cavity of the tertiary cleaning bin 15 for filtering dust in the turbid air. Spray heads 10 are arranged above the filter layer fillers 11, and the spray heads 10 are connected to the mother liquid pipe 12. The lower side wall of the tertiary cleaning bin 15 is connected to the other end of the second turbid air pipe 8, so that the turbid air after the second cleaning passes through the plurality of filter layer fillers 11 in sequence. A water filter layer filler 14 is arranged above the topmost filter layer filler 11 for removing moisture from the turbid air. The top of the tertiary cleaning bin 15 is connected to the exhaust port of the centrifugal fan 13 for extracting the turbid air after cleaning.

[0023] A plurality of spray pipes are arranged around the spray heads 10 in the secondary cleaning chamber 9 and the tertiary cleaning chamber 15, so as to further improve the spraying effect.

[0024] The utility model aims to provide a forced wet dust collector, which is used to collect dust from turbid air:

[0025] First, the turbid air enters from the air inlet 5. Since the air inlet 5 is arranged in the tangential direction of the side wall of the primary cleaning bin 3, the dust collides and rubs against the inner cavity of the primary cleaning bin 3, which accelerates the speed of downward deposition. The liquid spray port 6 sprays liquid into the inner cavity of the primary cleaning bin 3, which increases the weight of the dust after mixing with the liquid droplets, and also accelerates the speed of dust downward deposition. The dust deposited downward contacts the liquid in the blister tank 1 to achieve dust separation. The packing ball ring 16 further restricts the dust to the bottom, so that the amount of dust deposited downward is greater. In addition, the upright spray pipe 7 sprays mother liquid to the turbid air entering the cleaning chamber 4 to further separate the dust.

[0026] Then the turbid air enters the secondary cleaning chamber 9 through the turbid air pipe 8, and the filter layer filler 11 cooperates with the spray head 10 to separate the dust.

[0027] Finally, the turbid gas enters the tertiary cleaning chamber 15 through the turbid gas pipe 8. Similarly, the filter layer filler 11 and the spray head 10 are used to completely separate the dust and nitrogen. After the clean nitrogen is dehydrated by the water filter layer filler 14, it is extracted by the centrifugal fan 13.

[0028] The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments can be combined with each other to form new embodiments. The above embodiments are only used to illustrate the technical solutions of the utility model and are not intended to limit them. Any modification or equivalent replacement that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. A forced wet dust collector, comprising a dust removal tank (1), wherein a certain amount of liquid is contained in the dust removal tank (1), characterized in that: A support frame (2) is provided on the top of the degassing tank (1), and a primary cleaning chamber (3), a secondary cleaning chamber (9) and a tertiary cleaning chamber (15) are installed on the support frame (2) from left to right in order to realize multi-stage dust removal of turbid air. The bottoms of the primary cleaning chamber (3), the secondary cleaning chamber (9) and the tertiary cleaning chamber (15) are all extended below the liquid level of the degassing tank (1) to realize bottom liquid sealing and dust adsorption. An air inlet (5) is opened in the tangential direction of the side wall of the primary cleaning chamber (3) to allow dust in the turbid air to mix with the primary cleaning chamber (3). After colliding with the inner wall, the dust falls to the bottom. The primary cleaning chamber (3), the secondary cleaning chamber (9) and the tertiary cleaning chamber (15) are all connected to the mother liquid pipe (12) to spray the dust in the turbid air. The primary cleaning chamber (3) and the secondary cleaning chamber (9), and the secondary cleaning chamber (9) and the tertiary cleaning chamber (15) are all connected through the turbid air pipe (8). The top of the tertiary cleaning chamber (15) is connected to the centrifugal fan (13). By exhausting air, it is ensured that the turbid air passes through the primary cleaning chamber (3), the secondary cleaning chamber (9) and the tertiary cleaning chamber (15) in sequence.

2. A forced wet dust collector according to claim 1, characterized in that: The top of the primary cleaning bin (3) is provided with a plurality of liquid spraying ports (6) so as to spray liquid into the inner cavity of the primary cleaning bin (3) and thereby clean the turbid air. A cleaning chamber (4) is sleeved in the inner cavity of the primary cleaning bin (3). A packing ball ring (16) is provided at the bottom of the inner cavity of the cleaning chamber (4) for filtering dust in the turbid air. A vertical spray pipe (7) is provided in the middle of the cleaning chamber (4). The vertical spray pipe (7) is connected to the mother liquid pipe (12) so as to spray liquid into the dust in the turbid air. The top of the cleaning chamber (4) is connected to one end of the first turbid air pipe (8), so that the turbid air after the primary cleaning enters the secondary cleaning bin (9).

3. A forced wet dust collector according to claim 2, characterized in that: A plurality of filter layer fillers (11) are arranged from top to bottom in the inner cavity of the secondary cleaning chamber (9) for filtering dust in the turbid air. A spray head (10) is arranged above each of the filter layer fillers (11). Each of the spray heads (10) is connected to a mother liquid pipe (12). The lower side wall of the secondary cleaning chamber (9) is connected to the other end of the first turbid air pipe (8), so that the turbid air after initial cleaning passes through the plurality of filter layer fillers (11) in sequence. The top of the secondary cleaning chamber (9) is connected to one end of the second turbid air pipe (8), so that the turbid air after secondary cleaning enters the tertiary cleaning chamber (15).

4. A forced wet dust collector according to claim 3, characterized in that: The inner cavity of the tertiary cleaning chamber (15) is provided with multiple layers of filter layer fillers (11) from top to bottom for filtering dust in the turbid air. A spray head (10) is provided above each of the filter layer fillers (11). Each of the spray heads (10) is connected to a mother liquid pipe (12). The lower side wall of the tertiary cleaning chamber (15) is connected to the other end of the second turbid air pipe (8), so that the turbid air after the secondary cleaning passes through the multiple layers of filter layer fillers (11) in sequence. A water filter layer filler (14) is provided above the topmost filter layer filler (11) for removing moisture from the turbid air. The top of the tertiary cleaning chamber (15) is connected to an exhaust port of a centrifugal fan (13) for extracting the turbid air after cleaning.

5. A forced wet dust collector according to claim 4, characterized in that: A plurality of groups of spray nozzles are arranged on the side wall of the vertical spray pipe (7) to further improve the spraying effect.

6. A forced wet dust collector according to claim 5, characterized in that: A plurality of spray pipes are arranged around the spray head (10), thereby further improving the spraying effect.

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