Water bath type dust remover for flue gas cleaning

Abstract

The utility model belongs to the technical field of dust removal equipment, and discloses a water bath type dust remover for flue gas cleaning, which comprises a dust remover body, a water circulation device is arranged on one side of the dust remover body, the bottom of the water circulation device is communicated with one side of the upper part of a sewage isolation device, and the top of the water circulation device extends into a water mist purification chamber; a water replenishing assembly is arranged on one side of the water bath purification chamber; a water mist purification chamber is arranged above the water bath purification chamber, a mounting hole is formed in one side of the lower part of the water mist purification chamber, the air inlet assembly extends into the water bath purification chamber through the water mist purification chamber via the mounting hole, and flow guide holes are uniformly formed in the surface of the air inlet assembly below the water replenishing assembly extending into the water bath purification chamber; according to the utility model, the utilization rate of dust removal water can be improved, the mixing degree of flue gas and water is improved, and the flue gas treatment efficiency and the utilization rate of dust removal water in the water bath purification chamber are further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dust removal equipment technical field, concretely relates to a water bath type dust collector for flue gas cleaning. BACKGROUND

[0002] The water bath type dust collector is a self-excited dust collector with the simplest structure, which captures dust particles by means of the relative movement of water or other liquid and dust-containing gas, inertia collision, interception, diffusion and agglomeration effects between the liquid medium and the dust particles, and achieves the purpose of dust removal. The water bath type dust collector has multiple dust removal effects such as washing dust removal, inertia dust removal and gravity dust removal, and has the advantages of low device investment, compact structure and small land occupation, and is widely used in small and medium-sized industrial boilers and factories with high dust production.

[0003] The patent publication CN107158848A "a water bath type dust collector" discloses a water bath type dust collector, which directly connects the air inlet pipe with the water storage tank, the air inlet pipe directly discharges the flue gas into the water storage tank, the water in the water storage tank filters the dust in the flue gas, then filters through the filter screen, and then discharges the gas. Although the filter screen is provided, the water and the flue gas are not mixed sufficiently, so that the gas still contains a lot of dust when it is discharged from the water surface. Although the filter screen is used for filtering, the dust removal effect is still not ideal. For flue gas with high dust content, further dust removal treatment is often needed before discharge, which increases the cost. UTILITY MODEL CONTENT

[0004] The utility model discloses a water bath type dust collector for flue gas cleaning to solve the above technical problems, which has the advantages of simple structure, convenient use, sufficient mixing of flue gas and water, good filtering effect and convenient maintenance.

[0005] The utility model discloses a technical scheme adopted by the utility model is: a water bath type dust collector for flue gas cleaning, including support frame, is fixedly arranged with dust remover body on the support frame, and the dust remover body includes the water bath purification chamber fixedly connected with the support frame, and the bottom of water bath purification chamber is conical, and the bottom of water bath purification chamber is connected with the drainage assembly, and the top of water bath purification chamber is fixed with the maintenance net, and the maintenance net is connected with the water mist purification chamber above, and the water mist purification chamber is connected with the water baffle above, and the water baffle is connected with the clean gas chamber above, and the clean gas chamber is trapezoidal, and is equipped with the upper cover on the top, and is equipped with the air outlet assembly on one side above the clean gas chamber, the sewage isolation device is arranged below the drainage assembly, and the sewage isolation device top is opened, and the drainage assembly bottom extends into the sewage isolation device inside below from the sewage isolation device top opening, one side of the dust remover body is equipped with the water circulation device, and the water circulation device bottom is communicated with one side of the sewage isolation device upper portion, and the top extends into the water mist purification chamber, one side of the water bath purification chamber upper portion is equipped with the water replenishing assembly, one side of the water mist purification chamber middle portion is equipped with the manhole door, and one side of the water mist purification chamber lower portion is equipped with the mounting hole, and the air inlet assembly extends into the water bath purification chamber through the mounting hole through the water mist purification chamber, and the air inlet assembly surface below the water replenishing assembly position extending into the water bath purification chamber is evenly arranged with the flow guide hole.

[0006] The drainage assembly includes the drainage valve connected with the bottom of the water bath purification chamber, and the drainage valve bottom is connected with the drainage pipe, and the drainage pipe extends into the sewage isolation device inside below from the sewage isolation device top opening.

[0007] The sewage isolation device includes the clean water tank, and the filter screen is connected below the clean water tank, and the sludge tank is connected below the filter screen, and the sludge tank bottom is designed as an inclined plate, and the sludge tank bottom one side is equipped with the sludge outlet valve, and one end of the sludge outlet valve is connected with the sludge tank bottom, and the other end is connected with the sludge outlet pipe, and the drainage pipe extends into the sludge tank inside intermediate position through the filter screen from the clean water tank top opening.

[0008] The air outlet assembly includes the air outlet pipe connected with one side above the clean gas chamber, and the air outlet valve is arranged on the air outlet pipe.

[0009] The water circulation device includes the water suction pipe connected with one side in the middle of the clean water tank, and the water suction pipe is connected with the water pump, and the water pump top is connected with the water injection pipe, and the water injection pipe is inverted L-shaped, and the upper portion extends into the water mist purification chamber, and the upper portion terminal end is provided with the vertical downward spray head, and the spray head is arranged at the intermediate position of the water mist purification chamber.

[0010] The water replenishing assembly includes the water replenishing valve arranged on one side of the water bath purification chamber upper portion, and the water replenishing valve is connected with the water replenishing pipe.

[0011] The air inlet assembly comprises a first air inlet pipe arranged outside the lower part of the water mist purification chamber, a second air inlet pipe detachably connected to the inner side of the first air inlet pipe, the first air inlet pipe and the second air inlet pipe being arranged in the same plane, the second air inlet pipe being obliquely inserted into the inner side of the first air inlet pipe, the second air inlet pipe being provided with an air inlet valve at the connection with the first air inlet pipe, the second air inlet pipe being arranged in the water mist purification chamber through a mounting hole, and a third air inlet pipe detachably connected to the bottom of the second air inlet pipe, the third air inlet pipe being arranged vertically and connected perpendicularly to the second air inlet pipe, the third air inlet pipe extending into the water bath purification chamber through the inspection net, and the middle surface, the lower surface and the bottom of the third air inlet pipe being uniformly provided with flow guide holes, and the third air inlet pipe being provided with a filter bag.

[0012] The number of the second air inlet pipes is greater than or equal to 2, and the second air inlet pipe is detachably connected with 2 or more third air inlet pipes, and the first air inlet pipe and the second air inlet pipe are variable-diameter pipes.

[0013] The utility model discloses the beneficial effects are:

[0014] 1, the first air inlet pipe and the second air inlet pipe are variable-diameter pipes, so that the airflow of the first air inlet pipe entering the second air inlet pipe is uniformly distributed, and the airflow of the second air inlet pipe entering the third air inlet pipe is uniformly distributed, the second air inlet pipe is obliquely inserted into the inner side of the first air inlet pipe, which is beneficial to the uniform distribution of airflow, the middle surface, the lower surface and the bottom of the third air inlet pipe are uniformly arranged with flow guide holes, so that the flue gas uniformly flows out from each flow guide hole and enters the dust removal water in the water bath purification chamber, thereby increasing the utilization rate of the dust removal water, and the flow guide holes at the bottom of the third air inlet pipe can prevent the deposition of sludge at the bottom of the pipeline and block the flow guide holes, thereby improving the flue gas treatment efficiency and the utilization rate of the dust removal water in the water bath purification chamber.

[0015] 2, the third air inlet pipe is provided with a filter bag, which further reduces the bubble size, increases the contact area of the flue gas and the dust removal water in the water bath purification chamber, improves the dust removal efficiency, and the mesh number of the filter bag is selected according to the dust content and particle size in the flue gas.

[0016] 3, through the double filtering effect of the water bath purification chamber and the water mist purification chamber, the dust not captured in the water bath purification chamber enters the water mist purification chamber for further filtration under the action of airflow, thereby improving the filtering effect.

[0017] 4, through the filtering effect of the filter screen in the sewage isolation device, the sewage is separated from the clean water, the clean water in the clean water tank is sprayed into the water mist purification chamber through the nozzle by the water pump, the dust not captured in the water bath purification chamber is further cleaned, the water is recycled, the flue gas purification effect is improved, and the water resource is saved.

[0018] 5, the bottom of the sludge tank is designed as an inclined plate, which facilitates the discharge of sludge from the sludge outlet pipe and reduces the labor intensity of workers. DRAWINGS

[0019] Fig. 1 is a sectional structure schematic view of the utility model;

[0020] Fig. 2 is a air intake assembly structure schematic view of the utility model;

[0021] Fig. 3 is a air intake assembly overhead structure schematic view of the utility model.

[0022] Marked in the figure: 1, support frame;2, dust remover body, 21, water bath purification chamber, 22, maintenance net, 23, water mist purification chamber, 231, maintenance manhole door, 232, mounting hole, 24, water baffle, 25, clean gas chamber, 251, upper cover;26, air outlet assembly, 261, air outlet pipe, 262, air outlet valve;27, drainage assembly, 271, drainage valve, 272, drainage pipe;28, water replenishing assembly, 281, water replenishing valve, 282, water replenishing pipe;3, sewage isolation device, 31, clean water tank, 32, filter screen, 33, sludge tank, 34, sludge outlet valve, 35, sludge outlet pipe;4, water circulating device, 41, water pumping pipe, 42, water pumping pump, 43, water injection pipe, 44, spray head;5, air intake assembly, 51, flow guide hole, 52, first air inlet pipe, 53, second air inlet pipe, 54, third air inlet pipe, 55, filter bag, 56, air inlet valve. Specific implementation

[0023] The specific implementation of the utility model is further explained in detail in combination with the accompanying drawings.

[0024] As Figs. 1-3As shown, a water bath type dust collector for flue gas cleaning, comprising a support frame 1, a dust collector body 2 is fixedly arranged on the support frame 1, the dust collector body 2 comprises a water bath purification chamber 21 fixedly connected with the support frame 1, the bottom of the water bath purification chamber 21 is conical, the bottom of the water bath purification chamber 21 is connected with a drainage assembly 27, the drainage assembly 27 comprises a drainage valve 271 connected with the bottom of the water bath purification chamber 21, and the bottom of the drainage valve 271 is connected with a drainage pipe 272; a maintenance net 22 is fixedly arranged at the top of the water bath purification chamber 21, a water mist purification chamber 23 is connected above the maintenance net 22, a maintenance manhole door 231 is arranged at one side of the middle of the water mist purification chamber 23, an installation hole 232 is arranged at one side of the lower part of the water mist purification chamber 23, a water baffle screen 24 is connected above the water mist purification chamber 23, a clean gas chamber 25 is connected above the water baffle screen 24, the clean gas chamber 25 is trapezoidal, an upper cover 251 is arranged at the top of the clean gas chamber 25, a gas outlet assembly 26 is arranged at one side above the clean gas chamber 25, the gas outlet assembly 26 comprises a gas outlet pipe 261 connected with one side above the clean gas chamber 25, and a gas outlet valve 262 is arranged on the gas outlet pipe 261; a sewage isolation device 3 is arranged below the drainage assembly 27, the sewage isolation device 3 comprises a clean water tank 31, a filter screen 32 is connected below the clean water tank 31, a sludge tank 33 is connected below the filter screen 32, the bottom of the sludge tank 33 is designed as an inclined plate, a sludge outlet valve 34 is arranged at one side of the bottom of the sludge tank 33, one end of the sludge outlet valve 34 is connected with the bottom of the sludge tank 33, the other end is connected with a sludge outlet pipe 35, and the drainage pipe 272 passes through the filter screen 32 and extends to the middle position inside the sludge tank 33 from the top opening of the clean water tank 31; a water circulating device 4 is arranged at one side of the dust collector body 2, the water circulating device 4 comprises a water suction pipe 41 connected with one side of the middle of the clean water tank 31, the water suction pipe 41 is connected with a water suction pump 42, a water injection pipe 43 is connected above the water suction pump 42, the water injection pipe 43 is inverted L-shaped, the upper part extends into the water mist purification chamber 23, and a vertical downward spray head 44 is arranged at the terminal of the upper part, and the spray head 44 is arranged at the middle position of the water mist purification chamber 23; a water supplement assembly 28 is arranged at one side of the upper part of the water bath purification chamber 21, the water supplement assembly 28 comprises a water supplement valve 281 arranged at one side of the upper part of the water bath purification chamber 21, and the water supplement valve 281 is connected with a water supplement pipe 282.The air inlet assembly 5 comprises a first air inlet pipe 52 arranged outside the lower portion of the water mist purification chamber 23, and a second air inlet pipe 53 detachably connected to the inner side of the first air inlet pipe 52. The first air inlet pipe 52 and the second air inlet pipe 53 are arranged in the same plane, and the second air inlet pipe 53 is obliquely inserted into the first air inlet pipe 52. The second air inlet pipe 53 is provided with an air inlet valve 56 at the connection with the first air inlet pipe 52, and is arranged in the water mist purification chamber 23 through the mounting hole 232. The bottom of the second air inlet pipe 53 is detachably connected to a third air inlet pipe 54, which is arranged vertically and connected perpendicularly to the second air inlet pipe 53. The third air inlet pipe 54 penetrates the maintenance net 22 and extends into the water bath purification chamber 21. The third air inlet pipe 54 is provided with flow guide holes 51 arranged uniformly on the middle surface, the lower surface and the bottom of the third air inlet pipe 54. The third air inlet pipe 54 is provided with a filter bag 55. The number of the second air inlet pipe 53 is three, and each second air inlet pipe 53 is detachably connected to four third air inlet pipes 54. The first air inlet pipe 52 and the second air inlet pipe 53 are variable-diameter pipes.

[0025] In use, the water supply valve 281 is opened, water is injected into the water bath purification chamber 21 through the water supply pipe 282, and when the water surface reaches a position close to the water supply assembly 28, the water supply valve 281 is closed, the air inlet valve 56 is opened, the flue gas passes through the first air inlet pipe 52 and the second air inlet pipe 53, enters the third air inlet pipe 54, and then becomes fine bubbles after passing through the flow guide holes 51 and the filter bag 55 on the third air inlet pipe 54, and then enters the water in the water bath purification chamber 21 for filtration. After filtration, the flue gas becomes bubbles and rises, passes through the water retaining screen 24, enters the clean gas chamber 25, the air outlet valve 262 is opened, and the purified flue gas is discharged from the air outlet pipe 261. When the water in the water bath purification chamber 21 becomes dirty, the drain valve 271 is opened, the dirty water passes through the drain pipe 272 and enters the sludge tank 33. The sludge in the water is deposited in the sludge tank 33, the upper layer of water is filtered through the filter screen 32 and enters the clean water tank 31, the water pump 42 pumps the water in the clean water tank 31, the water is sprayed in the water mist purification chamber 23 through the spray head 44, and the fine dust carried by the flue gas rising from the water bath purification chamber 21 is further cleaned. When it is necessary to clean the sludge in the sludge tank 33, the sludge outlet valve 34 is opened. Because the bottom of the sludge tank 33 is designed as an inclined plate, the sludge is discharged through the sludge outlet pipe 35 under the action of gravity. The utility model has the advantages of simple structure, convenient use, fine bubbles of flue gas entering the water bath purification chamber, improved mixing degree of water and flue gas, improved purification efficiency, improved utilization rate of dust removal water through the water circulation device 4, saved water resources, improved filtering effect through the double filtering effect of the water bath purification chamber 21 and the water mist purification chamber 23, improved filtering effect, convenient sludge discharge through the inclined plate design of the bottom of the sludge tank 33, and reduced labor intensity of workers.

Claims

1. A water bath dust collector for flue gas cleaning, comprising a support frame (1), a dust collector body (2) is fixedly arranged on the support frame (1), characterized in that: The dust remover body (2) comprises a water bath purification chamber (21) fixedly connected with the support frame (1), the bottom of the water bath purification chamber (21) is conical, the bottom of the water bath purification chamber (21) is connected with a drainage assembly (27), the top of the water bath purification chamber (21) is fixedly provided with an inspection net (22), the top of the inspection net (22) is connected with a water mist purification chamber (23), the top of the water mist purification chamber (23) is connected with a water blocking screen (24), the top of the water blocking screen (24) is connected with a clean gas chamber (25), the clean gas chamber (25) is trapezoidal, the top of the clean gas chamber (25) is provided with an upper cover (251), one side above the clean gas chamber (25) is provided with an air outlet assembly (26); the bottom of the drainage assembly (27) is provided with a sewage isolation device (3), the top of the sewage isolation device (3) is open, the bottom of the drainage assembly (27) extends into the sewage isolation device (3) from the top opening of the sewage isolation device (3); one side of the dust remover body (2) is provided with a water circulation device (4), the bottom of the water circulation device (4) is communicated with one side of the upper part of the sewage isolation device (3), and the top of the water circulation device (4) extends into the water mist purification chamber (23); one side of the upper part of the water bath purification chamber (21) is provided with a water supplement assembly (28); one side of the middle of the water mist purification chamber (23) is provided with an inspection manhole door (231), one side of the lower part of the water mist purification chamber (23) is provided with a mounting hole (232), the air inlet assembly (5) extends into the water bath purification chamber (21) through the water mist purification chamber (23) through the mounting hole (232), and the surface of the air inlet assembly (5) extending into the water bath purification chamber (21) below the position of the water supplement assembly (28) is uniformly provided with a flow guide hole (51).

2. The water bath precipitator for flue gas cleaning according to claim 1, characterized in that: The drainage assembly (27) comprises a drainage valve (271) connected with the bottom of the water bath purification chamber (21), the bottom of the drainage valve (271) is connected with a drainage pipe (272), and the drainage pipe (272) extends into the sewage isolation device (3) from the top opening of the sewage isolation device (3).

3. The water bath precipitator for flue gas cleaning according to claim 2, characterized in that: The sewage isolation device (3) comprises a clean water tank (31), the lower part of the clean water tank (31) is connected with a filter screen (32), the lower part of the filter screen (32) is connected with a sludge tank (33), the bottom of the sludge tank (33) is designed as an inclined plate, one side of the bottom of the sludge tank (33) is provided with a sludge outlet valve (34), one end of the sludge outlet valve (34) is connected with the bottom of the sludge tank (33), the other end of the sludge outlet valve (34) is connected with a sludge outlet pipe (35), and the drainage pipe (272) extends into the middle position of the sludge tank (33) through the filter screen (32) from the top opening of the clean water tank (31).

4. The flue gas cleaning water bath precipitator according to claim 1, characterized in that: The air outlet assembly (26) comprises an air outlet pipe (261) connected with one side above the clean gas chamber (25), and the air outlet pipe (261) is provided with an air outlet valve (262).

5. The flue gas cleaning water bath precipitator according to claim 3, characterized in that: The water circulation device (4) comprises a water pumping pipe (41) connected with one side of the middle of the clean water tank (31), the water pumping pipe (41) is connected with a water pumping pump (42), the water pumping pump (42) is connected with a water injection pipe (43), the water injection pipe (43) is inverted L-shaped, the upper part of the water injection pipe (43) extends into the water mist purification chamber (23), and a vertical downward spray head (44) is arranged at the end of the upper part of the water injection pipe (43).

6. The flue gas cleaning water bath precipitator according to claim 1, characterized in that: The water replenishing assembly (28) comprises a water replenishing valve (281) arranged on one side of the upper portion of the water bath purification chamber (21), and the water replenishing valve (281) is connected with a water replenishing pipe (282).

7. The flue gas cleaning water bath precipitator according to claim 1, characterized in that: The air inlet assembly (5) comprises a first air inlet pipe (52) arranged on the outer side of the lower portion of the water mist purification chamber (23), and the inner side of the first air inlet pipe (52) is detachably connected with a second air inlet pipe (53); the first air inlet pipe (52) and the second air inlet pipe (53) are arranged on the same plane in a transverse direction; the second air inlet pipe (53) is obliquely inserted into the inner side of the first air inlet pipe (52); the second air inlet pipe (53) is provided with an air inlet valve (56) at the connection position with the first air inlet pipe (52); the second air inlet pipe (53) is arranged in the water mist purification chamber (23) through a mounting hole (232); the bottom of the second air inlet pipe (53) is detachably connected with a third air inlet pipe (54); the third air inlet pipe (54) is arranged in a vertical direction and is connected with the second air inlet pipe (53) perpendicularly; the third air inlet pipe (54) penetrates through the maintenance net (22) and extends into the water bath purification chamber (21); the middle surface, the lower surface and the bottom of the third air inlet pipe (54) are uniformly arranged with flow guide holes (51); and the third air inlet pipe (54) is externally sleeved with a filter bag (55).

8. A water bath precipitator for flue gas cleaning according to claim 7, characterized in that: The number of the second air inlet pipes (53) is greater than or equal to 2; the second air inlet pipes (53) are detachably connected with 2 or more third air inlet pipes (54); and the first air inlet pipe (52) and the second air inlet pipe (53) are variable-diameter pipes.

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