Surge flow type wet dust removal device

Abstract

The utility model provides a surge flow type wet dust removal device which comprises a support box body, an inlet box body and an outlet box body which are arranged on the support box body in parallel, a flue gas inlet pipe arranged at the top of the inlet box body, a discharge outlet arranged at the top of the outlet box body, and a water bath funnel box body arranged on the support box body and communicated with the bottom of the inlet box body and the bottom of the outlet box body, a plurality of filter pipes which are uniformly arranged on the section of the inlet box body are arranged at the bottom of the inlet box body, the axial directions of the filter pipes are arranged along the vertical direction, water is stored in the water bath funnel box body, and the bottoms of the filter pipes are immersed below the water surface in the water bath funnel box body. The device is high in dust removal efficiency, good in purification effect, not prone to blockage and capable of meeting the ultra-clean emission requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, in particular to a surging flow type wet dust removal device. Background Art

[0002] At present, the purification process of conventional high-humidity dust-containing gas purification devices is: flue gas inlet - self-excited water bath dust removal - S-type guide plate gas-water separator - purified flue gas outlet. The above flue gas treatment process has the following main disadvantages: First, the self-excited water bath dust removal effect is slightly poor, and the purified exhaust gas does not meet the national ultra-clean emission requirements (10mg / Nm 3 ); second, the flue gas passes through an S-shaped guide plate gas-water separator, and the gas-water separation is not very thorough. Currently, there is no solution that can solve the above two problems at the same time. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model proposes a turbulent flow wet dust removal device, which has high dust removal efficiency, good purification effect, is not easy to be blocked, and can meet the ultra-clean emission requirements.

[0004] To achieve the above-mentioned purpose, the utility model provides a gas flow wet dust removal device, including a supporting box body, on which are arranged a parallel inlet box body and an outlet box body, a smoke inlet pipe is arranged on the top of the inlet box body, a discharge outlet is arranged on the top of the outlet box body, a water bath funnel box body connecting the bottom of the inlet box body and the bottom of the outlet box body is provided on the supporting box body, a plurality of filter tubes evenly arranged on the cross section are provided at the bottom of the inlet box body, the axial direction of the filter tubes is arranged along the vertical direction, water is stored in the water bath funnel box body, and the bottom of the filter tube is immersed under the water surface in the water bath funnel box body.

[0005] Furthermore, the length of the filter tube is 219 mm, a plurality of evenly distributed small holes are respectively provided on the tube wall and the bottom of the lower 1 / 5 length of the filter tube, and the length of the filter tube immersed under the water surface in the water bath funnel box exceeds 1 / 5.

[0006] Furthermore, a plurality of spray pipes are provided in the inlet box between the smoke inlet pipe and the filter pipe.

[0007] Furthermore, a guide plate type gas-water separator, a flow equalizing plate, a folded plate type dehydrator, and a tube bundle type demister are sequentially arranged in the outlet box between the water bath funnel box and the discharge outlet from bottom to top.

[0008] Furthermore, the guide plate type air-water separator adopts an S-shaped guide plate, and the guide plate type air-water separator enables the airflow to form a spiral rising reflux wind in the outlet box body above the water bath funnel box body.

[0009] Furthermore, a recoil pipe is provided at the top of the folded plate dehydrator and the top of the tube bundle demister, respectively.

[0010] Furthermore, inspection doors are respectively provided on the side walls of the folding plate dehydrator and the tube bundle demister.

[0011] Furthermore, a sewage drain valve is provided on the water pipe connected to the bottom of the water bath funnel box.

[0012] The utility model is a turbulent flow wet dust removal device suitable for purifying high-humidity dust-containing gas, with high dust removal efficiency, good purification effect, not easy to be blocked, and can meet the ultra-clean emission requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described and elaborated below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural schematic diagram of a surging flow wet dust removal device of the preferred embodiment of the utility model.

[0015] Figure numerals: 1. Flue gas inlet pipe; 2. Spray pipe; 3. Filter tube; 4. Water bath funnel box; 5. Guide plate type gas-water separator; 6. Flow equalizing plate; 7. Folding plate type dehydrator; 8. Tube bundle type demister; 9. Inspection door; 10. Discharge outlet; 11. Sewage drain valve; 12. Support box; 13. Backwash pipe. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be more clearly and completely explained below by describing the preferred embodiments of the present invention in combination with the accompanying drawings.

[0017] like Figure 1 As shown, the preferred embodiment of the utility model of the surging flow wet dust removal device includes a support box 12, on which a parallel inlet box and an outlet box are arranged, a smoke inlet pipe 1 is arranged on the top of the inlet box, a discharge outlet 10 is arranged on the top of the outlet box, a water bath funnel box 4 connecting the bottom of the inlet box and the bottom of the outlet box is arranged on the support box 12, and a sewage drain valve 11 is arranged on the water pipe connected to the bottom of the water bath funnel box 4. A plurality of spray pipes 2 are arranged below the smoke inlet pipe 1 in the inlet box, a plurality of filter tubes 3 are arranged evenly on the cross section at the bottom of the inlet box, and a guide plate type gas-water separator 5, a flow equalizing plate 6, a folded plate type dehydrator 7, and a tube bundle type demister 8 are arranged in sequence from bottom to top between the water bath funnel box 4 and the discharge outlet 10 in the outlet box.

[0018] The flue gas with high moisture content is first sprayed, and the water sprayed from the spray pipe 2 is mixed with the dust-containing flue gas to perform primary dust removal.

[0019] The axis of the filter tube 3 is arranged in the vertical direction, the length of the filter tube 3 is 219 mm, and a number of evenly distributed small holes are respectively provided on the tube wall and the bottom of the lower 1 / 5 length of the filter tube 3. Water is stored in the water bath funnel box 4, and the bottom of the filter tube 3 is immersed in the water in the water bath funnel box 4, and the length of the filter tube 3 immersed in the water in the water bath funnel box 4 exceeds 1 / 5, so as to ensure that all the small holes on the filter tube 3 can be immersed in water, and the smoke emerges from the small holes to impact the water body, and produces small water splashes, which is the surging flow, so that most of the fine dust particles are combined with water, and then removed through dehydration.

[0020] The guide plate type gas-water separator 5 adopts an S-shaped guide plate. The guide plate type gas-water separator 5 makes the airflow form a spiral rising reflux wind in the outlet box above the water bath funnel box 4. The dust and water droplets in the flue gas return to the water bath funnel box 4 under the action of centrifugal force.

[0021] The flow equalizing plate 6 is arranged on the upper part of the guide plate type gas-water separator 5, so that the smoke flows more evenly in the outlet box, which is more conducive to the subsequent dehydration.

[0022] The flue gas passes through the flow equalizing plate 6 and enters the folded plate dehydrator 7 for dehydration, so that smaller water droplets are removed again.

[0023] The flue gas finally enters the tube bundle demister 8 for further defog, so that the finest water mist is finally removed, so that the flue gas purification effect is better and the ultra-clean emission requirements are met.

[0024] In order to prevent scaling of the folded plate dehydrator 7 and the tube bundle demister 8, backwash pipes are respectively provided at the top of the folded plate dehydrator 7 and the top of the tube bundle demister 8, and the folded plate dehydrator 7 and the tube bundle demister 8 are intermittently backwashed as required.

[0025] Inspection doors 9 are provided on the side walls of the folded plate dehydrator 7 and the tube bundle demister 8 to facilitate regular inspections. The flue gas purification process in the turbulent wet dust removal device is as follows:

[0026] High-humidity dusty flue gas enters → water is sprayed by spray pipe 2 for initial purification → filter tube 3 for fine dust removal → panting water bath dust removal → guide plate promotes gas-water separation → flow equalizing plate 6 stabilizes flow → folded plate dehydrator 7 dehydrates → tube bundle demister 8 demists → purified flue gas is discharged.

[0027] The utility model is a turbulent flow wet dust removal device suitable for purifying high-humidity dust-containing gas, with high dust removal efficiency, good purification effect, not easy to be blocked, and can meet the ultra-clean emission requirements.

[0028] The above specific implementations are only descriptions of the preferred implementations of the utility model, and do not limit the protection scope of the utility model. Under the premise of not departing from the design concept and spirit of the utility model, various deformations, substitutions and improvements made by ordinary technicians in this field to the technical solution of the utility model based on the text description and drawings provided by the utility model should all fall within the protection scope of the utility model. The protection scope of the utility model is determined by the claims.

Claims

1. A surging wet dust removal device, characterized in that: The invention comprises a supporting box (12), wherein the supporting box (12) is provided with an inlet box and an outlet box arranged in parallel, wherein a smoke inlet pipe (1) is provided at the top of the inlet box, and an exhaust outlet (10) is provided at the top of the outlet box, wherein a water bath funnel box (4) communicating with the bottom of the inlet box and the bottom of the outlet box is provided on the supporting box (12), wherein the bottom of the inlet box is provided with a plurality of filter tubes (3) evenly arranged on the cross section thereof, wherein the axial direction of the filter tubes (3) is arranged in the vertical direction, wherein water is stored in the water bath funnel box (4), and the bottom of the filter tubes (3) is immersed below the water surface in the water bath funnel box (4).

2. The surging flow wet dust removal device according to claim 1, characterized in that: The length of the filter tube (3) is 219 mm, and a plurality of evenly distributed small holes are respectively provided on the tube wall and the bottom of the lower 1 / 5 of the length of the filter tube (3), and the length of the filter tube (3) immersed in the water bath funnel box (4) below the water surface exceeds 1 / 5.

3. The surging flow wet dust removal device according to claim 2, characterized in that: A plurality of spray pipes (2) are also provided in the inlet box between the smoke inlet pipe (1) and the filter pipe (3).

4. The surging flow wet dust removal device according to claim 1, characterized in that: The outlet box is provided with a guide plate type gas-water separator (5), a flow equalizing plate (6), a folded plate type dehydrator (7), and a tube bundle type demister (8) in sequence from bottom to top between the water bath funnel box (4) and the discharge outlet (10).

5. The surging flow wet dust removal device according to claim 4, characterized in that: The guide plate type air-water separator (5) adopts an S-shaped guide plate, and the guide plate type air-water separator (5) enables the airflow to form spiral ascending reflux wind in the outlet box body above the water bath funnel box body (4).

6. The surging flow wet dust removal device according to claim 5, characterized in that: The top of the folded plate dehydrator (7) and the top of the tube bundle demister (8) are respectively provided with a recoil pipe.

7. The surging flow wet dust removal device according to claim 5, characterized in that: Inspection doors (9) are respectively provided on the side walls of the folding plate dehydrator (7) and the tube bundle demister (8).

8. The surging flow wet dust removal device according to claim 1, characterized in that: A sewage drain valve (11) is provided on the water pipe connected to the bottom of the water bath funnel box (4).

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