CN217838805U - Boiler blow-down water recovery device - Google Patents

Abstract

The utility model discloses a boiler blowdown water recovery unit, including boiler blowdown pond, the left side in boiler blowdown pond is connected with blowdown pond overflow pipe, the top in boiler blowdown pond is connected with boiler blowdown water pipe, first branch pipe is installed on boiler blowdown water pipe's right side, the surface mounting of first branch pipe has the backward flow governing valve, the internally mounted in boiler blowdown pond has the submerged pump, the check valve is installed to the play water end of submerged pump, main way pipe is installed to the play water end of check valve, the surface mounting of main way pipe has the third governing valve. Through the process and the structural design, the boiler blow-down water recovery device can recover different blow-down water generated in the daily production process of the coke dry quenching waste heat boiler into the coke dry quenching water seal tank, the wet quenching water tank and the coke dry quenching circulating water tank, and can be switched randomly according to the coke dry quenching production condition, so that the effects of water saving and emission reduction are achieved.

Description

Boiler blow-down water recovery device

Technical Field

The utility model relates to a coal chemical industry dry coke quenching equipment technical field specifically is boiler blow-down water recovery unit.

Background

And a sewage draining pool is arranged at the bottom of the coke dry quenching waste heat boiler and used for collecting sewage generated by the waste heat boiler in the coke dry quenching production process. The boiler blow-down water mainly comprises waste heat boiler continuous blow-down water, periodic blow-down water, body water delivery and the like, the total blow-down water amount is about 5t/h, the quality of the blow-down water of the dry quenching waste heat boiler is obviously better than that of industrial water through chemical examination and analysis, and the boiler blow-down water has a recycling value. The upper part of the sewage disposal pool is provided with an overflow pipe which is communicated with a sewer, and when the liquid level of the sewage disposal water is higher than that of the overflow pipe, the sewage disposal water of the boiler is directly discharged into the sewer.

The upper portion of a sewage disposal pool at the bottom of an existing dry quenching waste heat boiler is provided with an overflow pipe, the overflow pipe is communicated with a sewer, when the liquid level of sewage is higher than that of the overflow pipe, the sewage of the boiler is directly discharged into the sewer, so that sewage waste is caused, and a boiler sewage discharge recovery device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler blow-down water recovery unit to the blowdown pond upper portion that proposes current dry coke quenching exhaust-heat boiler bottom among the solution above-mentioned background art sets up the overflow pipe, and the overflow pipe communicates with each other with the sewer, and when the blowdown liquid level was higher than the overflow pipe, the blowdown water of boiler just directly arranged in the middle of the sewer, caused the extravagant problem of sewage.

In order to achieve the above object, the utility model provides a following technical scheme: the boiler blow-down water recovery device comprises a boiler blow-down tank, wherein a blow-down tank overflow pipe is connected to the left side of the boiler blow-down tank, a boiler blow-down water pipe is connected to the upper side of the boiler blow-down tank, a first branch pipe is installed on the right side of the boiler blow-down water pipe, a backflow regulating valve is installed on the outer surface of the first branch pipe, a submerged pump is installed inside the boiler blow-down tank, a check valve is installed at the water outlet end of the submerged pump, a main pipe is installed at the water outlet end of the check valve, and a third regulating valve is installed on the outer surface of the main pipe;

dry quenching circulating water pond, it sets up the right side in boiler blowdown pond, second branch road pipe is installed to the top in dry quenching circulating water pond, the surface mounting of second branch road pipe has first governing valve, the right side in dry quenching circulating water pond is provided with wet quenching pond, third branch road pipe is installed to the top in wet quenching pond, the surface mounting of third branch road pipe has the second governing valve, water seal tank overflow pipe is installed on the right side of third branch road pipe, the right side of water seal tank overflow pipe is connected with dry quenching stove water seal tank, the top in dry quenching stove water seal tank is connected with the fourth branch road pipe.

Preferably, the plane of the water inlet of the submerged pump is about one meter lower than the plane of the overflow pipe of the sewage disposal pool, and the boiler sewage disposal pool is communicated with the overflow pipe of the sewage disposal pool.

Preferably, the boiler blow-down tank is communicated with the main branch pipe through a first branch pipe, and the dry quenching circulating water tank is communicated with the main branch pipe through a second branch pipe.

Preferably, the wet quenching water pool is communicated with the main branch pipe through a third branch pipe, the wet quenching water pool is communicated with the dry quenching furnace water seal tank through a water seal tank overflow pipe, and the dry quenching furnace water seal tank is communicated with the main branch pipe through a fourth branch pipe.

Preferably, the boiler blow-off pool is further provided with:

connect the spout, it is seted up the surface in boiler blowdown pond, the internally mounted of connecting the spout has link block, link block's right side integral type fixed mounting has the driving frame, the outer fixed surface of driving frame installs the connecting plate, elevator motor is installed to the top of connecting plate, elevator motor's output is installed the lift lead screw, clean frame is installed to the below of driving frame, clean frame's surface mounting has clean brush hair.

Preferably, the transmission frame is movably connected with the boiler blow-off pool through a connecting chute and a connecting slide block, the lifting motor is fixedly connected with the boiler blow-off pool, the lifting screw rod penetrates through the inside of the connecting plate, and the lifting screw rod is in threaded connection with the connecting plate.

Preferably, the shape and size of the cleaning frame are smaller than those of the interior of the boiler blow-down tank, and the cleaning bristles are tightly attached to the inner wall of the boiler blow-down tank.

Compared with the prior art, the utility model provides a boiler blow-down water recovery unit possesses following beneficial effect: through the process and the structural design of the boiler blow-down water recovery device, different blow-down water generated in the daily production process of the coke dry quenching waste heat boiler is recovered into the dry quenching water seal tank, the wet quenching water tank and the coke dry quenching circulating water tank, and the three can be switched randomly according to the coke dry quenching production condition, so that the effects of water saving and emission reduction are achieved.

1. The utility model realizes that different sewage generated in the daily production process of the coke dry quenching waste heat boiler can be recovered into the water seal tank of the coke dry quenching furnace, the wet quenching water tank and the coke dry quenching circulating water tank through the process and the structural design, and the three can be switched at will according to the production condition of the coke dry quenching, thereby achieving the effects of water saving and emission reduction;

2. the utility model prevents the liquid backflow in the pipeline from causing water hammer to the submerged pump when the submerged pump stops by installing the check valve at the water outlet of the submerged pump;

3. the utility model discloses a lift motor circular telegram work drives the lift lead screw and rotates, and then promotes the driving frame and reciprocates with clean frame, and then realizes cleaning the inner wall in boiler blowdown pond, improves the cleaning efficiency in boiler blowdown pond.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the boiler blow-down tank of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a schematic view of the connection structure of the boiler blow-down tank and the transmission frame of the present invention.

In the figure: 1. a boiler blow-down tank; 2. an overflow pipe of the sewage disposal pool; 3. a boiler blow-off water pipe; 4. a reflux regulating valve; 5. a first branch pipe; 6. a check valve; 7. a main pipe; 8. a first regulating valve; 9. a second branch pipe; 10. a second regulating valve; 11. a third branch pipe; 12. an overflow pipe of the water seal tank; 13. a third regulating valve; 14. a fourth branch pipe; 15. a water seal tank of the dry quenching furnace; 16. a wet quenching water tank; 17. a dry quenching circulating water tank; 18. a transmission frame; 19. a lifting motor; 20. lifting a screw rod; 21. a connecting plate; 22. a submerged pump; 23. a cleaning frame; 24. cleaning the bristles; 25. connecting the sliding chute; 26. and connecting the sliding block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the boiler blow-down water recovery device comprises a boiler blow-down tank 1, a blow-down tank overflow pipe 2 is connected to the left side of the boiler blow-down tank 1, a boiler blow-down water pipe 3 is connected to the upper side of the boiler blow-down tank 1, a first branch pipe 5 is installed on the right side of the boiler blow-down water pipe 3, a backflow regulating valve 4 is installed on the outer surface of the first branch pipe 5, and a submerged pump 22 is installed inside the boiler blow-down tank 1; the plane of the water inlet of the submerged pump 22 is about one meter lower than the plane of the overflow pipe 2 of the blowdown pool, the boiler blowdown pool 1 is communicated with the overflow pipe 2 of the blowdown pool, and the water outlet end of the submerged pump 22 is provided with a check valve 6; the check valve 6 is arranged at the water outlet of the submerged pump 22, so that liquid in a pipeline is prevented from flowing backwards to cause water hammer on the submerged pump 22 when the submerged pump 22 stops, the main pipeline 7 is arranged at the water outlet end of the check valve 6, and the third regulating valve 13 is arranged on the outer surface of the main pipeline 7; a coke dry quenching circulating water tank 17 which is arranged at the right side of the boiler blow-down tank 1, and a second branch pipe 9 is arranged above the coke dry quenching circulating water tank 17; the boiler blow-off pool 1 is communicated with a main branch pipe 7 through a first branch pipe 5, a dry quenching circulating water tank 17 is communicated with the main branch pipe 7 through a second branch pipe 9, a first regulating valve 8 is installed on the outer surface of the second branch pipe 9, a wet quenching water tank 16 is arranged on the right side of the dry quenching circulating water tank 17, a third branch pipe 11 is installed above the wet quenching water tank 16, a second regulating valve 10 is installed on the outer surface of the third branch pipe 11, a water seal tank overflow pipe 12 is installed on the right side of the third branch pipe 11, a dry quenching furnace water seal tank 15 is connected to the right side of the water seal tank overflow pipe 12, and a fourth branch pipe 14 is connected to the upper side of the dry quenching furnace water seal tank 15; the wet quenching water tank 16 is communicated with the main branch pipe 7 through a third branch pipe 11, the wet quenching water tank 16 is communicated with the dry quenching furnace water seal tank 15 through a water seal tank overflow pipe 12, and the dry quenching furnace water seal tank 15 is communicated with the main branch pipe 7 through a fourth branch pipe 14; through the process and the structural design, different sewage generated in the daily production process of the coke dry quenching waste heat boiler can be recycled into the coke dry quenching furnace water seal tank 15, the wet quenching water tank 16 and the coke dry quenching circulating water tank 17, and the three can be switched randomly according to the coke dry quenching production condition, so that the effects of water saving and emission reduction are achieved.

Referring to fig. 2-4, the boiler blow-down water recovery device comprises a connecting chute 25, which is arranged on the outer surface of the boiler blow-down tank 1, a connecting slide block 26 is arranged inside the connecting chute 25, a transmission frame 18 is integrally and fixedly arranged on the right side of the connecting slide block 26, a connecting plate 21 is fixedly arranged on the outer surface of the transmission frame 18, a lifting motor 19 is arranged above the connecting plate 21, and a lifting screw rod 20 is arranged at the output end of the lifting motor 19; the transmission frame 18 is movably connected with the boiler sewage pool 1 through a connecting sliding groove 25 and a connecting sliding block 26, the lifting motor 19 is fixedly connected with the boiler sewage pool 1, the lifting screw rod 20 penetrates through the connecting plate 21, the lifting screw rod 20 is in threaded connection with the connecting plate 21, the cleaning frame 23 is installed below the transmission frame 18, and cleaning bristles 24 are installed on the outer surface of the cleaning frame 23; the shape and size of the cleaning frame 23 are smaller than the shape and size of the interior of the boiler blow-down tank 1, and the cleaning bristles 24 are tightly attached to the inner wall of the boiler blow-down tank 1; the lifting screw rod 20 is driven to rotate through the electrifying work of the lifting motor 19, the transmission frame 18 and the cleaning frame 23 are further pushed to move up and down, the inner wall of the boiler blow-down pool 1 is cleaned, and the cleaning efficiency of the boiler blow-down pool 1 is improved.

The working principle is as follows: when the boiler sewage discharging water recovery device is used, firstly, a dry quenching waste heat boiler discharges sewage into the interior of a boiler sewage discharging pool 1 through a boiler sewage discharging water pipe 3, then the submerged pump 22 in the boiler sewage pool 1 is electrified to work, the pump body of the submerged pump 22 is made of stainless steel materials to achieve the functions of corrosion resistance and high temperature resistance, the submerged pump 22 pumps the sewage in the boiler sewage pool 1 out and conveys the sewage into the main pipeline 7, secondly, opening a first regulating valve 8 on a second branch pipe 9, or a second regulating valve 10 on a third branch pipe 11, or a boiler sewage draining pipe 3 on a main branch pipe 7 according to the production condition of dry quenching, selectively recovering sewage to recover the sewage drained from the dry quenching waste heat boiler into a dry quenching circulating water tank 17, a wet quenching water tank 16 or a dry quenching water seal tank 15, so as to play the roles of saving water and reducing emission, secondly, the backflow regulating valve 4 is opened to enable sewage to flow back to the interior of the boiler blow-down tank 1 through the first branch pipe 5, the sewage which is about to overflow from the interior of the boiler blow-down tank 1 can be discharged into a sewer through the blow-down tank overflow pipe 2, and then the sewage which is conveyed to the water seal tank 15 of the dry quenching furnace is opened to the maximum through closing the backflow regulating valve 4, the first regulating valve 8 and the second regulating valve 10 and opening the third regulating valve 13, further realizing the function of washing coke powder deposited in the water seal tank 15 of the dry quenching furnace with large flow, achieving the purpose of prolonging the service life of the water seal tank at the top of the dry quenching furnace, then driving the lifting screw rod 20 to rotate back and forth at a certain angle by electrifying the lifting motor 19, pushing the connecting plate 21 and the transmission frame 18 to move up and down through threads, and then the cleaning frame 23 is driven to move up and down in the boiler sewage pool 1, and the cleaning bristles 24 are moved to brush the inner wall of the boiler sewage pool 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Boiler blow-down water recovery unit, its characterized in that includes:

the boiler blow-down tank comprises a boiler blow-down tank (1), wherein a blow-down tank overflow pipe (2) is connected to the left side of the boiler blow-down tank (1), a boiler blow-down pipe (3) is connected to the upper side of the boiler blow-down tank (1), a first branch pipe (5) is installed on the right side of the boiler blow-down pipe (3), a backflow regulating valve (4) is installed on the outer surface of the first branch pipe (5), a submerged pump (22) is installed inside the boiler blow-down tank (1), a check valve (6) is installed at the water outlet end of the submerged pump (22), a main pipe (7) is installed at the water outlet end of the check valve (6), and a third regulating valve (13) is installed on the outer surface of the main pipe (7);

dry quenching circulating water pond (17), it sets up the right side of boiler blowdown pond (1), second branch way pipe (9) are installed to the top of dry quenching circulating water pond (17), the surface mounting of second branch way pipe (9) has first governing valve (8), the right side of dry quenching circulating water pond (17) is provided with wet quenching pond (16), third branch way pipe (11) are installed to the top of wet quenching pond (16), the surface mounting of third branch way pipe (11) has second governing valve (10), water seal tank overflow pipe (12) are installed on the right side of third branch way pipe (11), the right side of water seal tank overflow pipe (12) is connected with dry quenching stove water seal tank (15), the top of dry quenching stove water seal tank (15) is connected with fourth branch way pipe (14).

2. Boiler blow-down water recovery device according to claim 1, characterized in that the level of the water inlet of the submerged pump (22) is about one meter lower than the level of the overflow pipe (2) of the blow-down tank, and the boiler blow-down tank (1) is communicated with the overflow pipe (2) of the blow-down tank.

3. Boiler blow-down water recovery unit according to claim 1, characterized in that the boiler blow-down tank (1) is in communication with the main pipe (7) through a first branch pipe (5), and the dry quenching circulating water tank (17) is in communication with the main pipe (7) through a second branch pipe (9).

4. Boiler blow-down water recovery unit according to claim 1, characterized in that the wet quenching water tank (16) is in communication with the main bypass pipe (7) through a third bypass pipe (11), and the wet quenching water tank (16) is in communication with the dry quenching water seal tank (15) through a water seal tank overflow pipe (12), and the dry quenching water seal tank (15) is in communication with the main bypass pipe (7) through a fourth bypass pipe (14).

5. Boiler blow-down water recovery device according to claim 1, characterized in that the boiler blow-down tank (1) is further provided with:

connect spout (25), it sets up the surface of boiler blowdown pond (1), the internally mounted of connecting spout (25) has link block (26), the right side integral type fixed mounting of link block (26) has driving frame (18), the external fixed surface of driving frame (18) installs connecting plate (21), elevator motor (19) are installed to the top of connecting plate (21), lift lead screw (20) are installed to the output of elevator motor (19), clean frame (23) are installed to the below of driving frame (18), the surface mounting of clean frame (23) has clean brush hair (24).

6. The boiler blow-down water recovery device according to claim 5, wherein the transmission frame (18) is movably connected with the boiler blow-down tank (1) through a connecting chute (25) and a connecting slide block (26), the lifting motor (19) is fixedly connected with the boiler blow-down tank (1), the lifting screw rod (20) penetrates through the inside of the connecting plate (21), and the lifting screw rod (20) is in threaded connection with the connecting plate (21).

7. Boiler blow-down water recovery device according to claim 5, characterized in that the cleaning frame (23) has a smaller size than the inside of the boiler blow-down tank (1), and the cleaning bristles (24) are closely attached to the inner wall of the boiler blow-down tank (1).

Images