Clear water recycling device in water seal of ascending pipe of coke oven

Abstract

The utility model discloses a device for recycling clear water in a water seal of an ascending pipe of a coke oven, which relates to the technical field of water seals of coke ovens and comprises an ascending pipe body, an ascending pipe water seal tank is arranged on the periphery of the top of the ascending pipe body, and a primary sedimentation tank is arranged on one side of the ascending pipe body. The primary sedimentation tank is connected with the ascending pipe water seal tank through a purification mechanism, a furnace top water seal tank is arranged on one side of the primary sedimentation tank, a secondary sedimentation tank is arranged on one side of the furnace top water seal tank, and a circulating water replenishing tank is arranged on one side of the secondary sedimentation tank; the circulating water replenishing tank is connected with the ascending pipe water seal tank through the ammonia removal mechanism, clear water in the ascending pipe water seal tank can be recycled, waste of water resources is reduced, dust can be repeatedly filtered through the purification mechanism, coke-oven gas is repeatedly filtered through the circulating effect, and the coke-oven gas is recycled. The ammonia removal mechanism can absorb ammonia gas in water by using ammonia absorption zeolite in the ammonia removal mechanism, so that the ammonia gas enrichment phenomenon is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coke oven water seal technology, specifically a device for recycling clean water inside the water seal of a coke oven riser pipe. Background Technology

[0002] The coke oven is a coke production facility, and its byproduct is coke oven gas. The riser pipe connects the carbonization chamber and the gas collecting pipe, and also serves as the flow channel for the raw coke oven gas. The riser pipe cover and base are sealed with production water to prevent the raw coke oven gas from emitting smoke.

[0003] The existing coke oven riser pipe water seal water cannot be recycled. Due to the consumption of production water caused by evaporation, the efficiency of production water use is reduced, resulting in waste of production water. It is necessary to recycle the water seal water to save water resources and alleviate the treatment pressure of quenching water. Furthermore, since ammonia is highly soluble in water, ammonia is often adsorbed in the water seal water. When the water seal water is recycled, the ammonia in the water will become rich. When the concentration is too high, it will corrode the pipes.

[0004] Based on this, a device for recycling clean water inside the water seal of a coke oven riser pipe is provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a device for recycling clean water inside the water seal of a coke oven riser pipe, in order to solve the problem that the existing coke oven riser pipe water seal water cannot be recycled. Due to the consumption of production water caused by evaporation, the efficiency of production water use is reduced, resulting in waste of production water. It is necessary to recycle the water seal water to save water resources and alleviate the treatment pressure of quenching water. Furthermore, since ammonia is highly soluble in water, ammonia is often adsorbed in the water seal water. When the water seal water is recycled, the ammonia in the water will become rich, and when the concentration is too high, it will corrode the pipes.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for recycling clean water within the water seal of a coke oven riser pipe includes a riser pipe body. A riser pipe water seal trough is provided around the top periphery of the riser pipe body. A primary sedimentation tank is provided on one side of the riser pipe body, and the primary sedimentation tank is connected to the riser pipe water seal trough via a purification mechanism. A furnace top water seal trough is provided on one side of the primary sedimentation tank, and the furnace top water seal trough is connected to the primary sedimentation tank via a third connecting pipe. A secondary sedimentation tank is provided on one side of the furnace top water seal trough, and the secondary sedimentation tank is connected to the furnace top water seal trough via a fourth connecting pipe. A circulating water replenishment tank is provided on one side of the secondary sedimentation tank, and the circulating water replenishment tank is connected to the top of the secondary sedimentation tank via a connecting pipe. The circulating water replenishment tank is connected to the riser pipe water seal trough via an ammonia removal mechanism.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the purification mechanism includes a purification box, the input end of the purification box is provided with a first connecting pipe, one side of the outer end of the first connecting pipe is provided with a water seal water supply pipe connected to the top of the riser water seal trough, the water seal water supply pipe is provided with a water seal water supply valve, the output end of the purification box is provided with a second connecting pipe connected to the primary sedimentation tank, and the purification box is provided with a number of filter screens.

[0010] In one alternative: an automatic controller is installed outside the secondary sedimentation tank, and a liquid level and pressure transmitter is installed on the secondary sedimentation tank.

[0011] In one alternative: a circulating water pump is installed on one side of the top of the secondary sedimentation tank, the input end of the circulating water pump is connected to the secondary sedimentation tank, and the output end of the circulating water pump is connected to a connecting pipe.

[0012] In one alternative: the ammonia removal mechanism includes an ammonia removal tank, the input end of which is connected to the circulating water replenishment tank via a fifth connecting pipe, and the output end of which is connected to the riser water seal trough via a sixth connecting pipe. The ammonia removal tank is equipped with ammonia-absorbing zeolite.

[0013] In one alternative: the inlet of the ammonia removal tank is connected to the fifth connecting pipe by a threaded rotation, and the outlet of the ammonia removal tank is connected to the sixth connecting pipe by a threaded rotation.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model realizes the recycling of clean water from the riser pipe water seal, reducing the waste of water resources.

[0016] 2. This utility model ensures the quality of circulating water and avoids the impact of impurities and suspended solids on coke oven equipment through the sedimentation and filtration effects of the primary and secondary sedimentation tanks.

[0017] 3. This utility model, by installing a liquid level and pressure transmitter and an automatic controller, can realize automatic monitoring and control, thereby improving the operating efficiency and stability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the purification box of this utility model.

[0020] Figure 3This is a schematic diagram of the internal structure of the ammonia removal tank of this utility model.

[0021] Figure label annotations: 1. Ascending pipe body; 2. Ascending pipe water seal trough; 3. Primary sedimentation tank; 4. Purification tank; 5. First connecting pipe; 6. Second connecting pipe; 7. Water seal water supply pipe; 8. Water seal water supply valve; 9. Furnace top water seal trough; 10. Third connecting pipe; 11. Fourth connecting pipe; 12. Secondary sedimentation tank; 13. Circulating water supply tank; 14. Connecting pipe; 15. Circulating water pump; 16. Ammonia removal tank; 17. Fifth connecting pipe; 18. Sixth connecting pipe; 19. Liquid level and pressure transmitter; 20. Automatic controller; 21. Filter screen; 22. Ammonia absorption zeolite. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In one embodiment, such as Figures 1-3 As shown, a device for recycling clean water within the water seal of a coke oven riser pipe includes a riser pipe body 1, a riser pipe water seal trough 2 disposed around the top periphery of the riser pipe body 1, a primary sedimentation tank 3 disposed on one side of the riser pipe body 1, the primary sedimentation tank 3 being connected to the riser pipe water seal trough 2 via a purification mechanism, a furnace top water seal trough 9 disposed on one side of the primary sedimentation tank 3, the furnace top water seal trough 9 being connected to the primary sedimentation tank 3 via a third connecting pipe 10, a secondary sedimentation tank 12 disposed on one side of the furnace top water seal trough 9, and the secondary sedimentation tank 12 being connected to the furnace top water seal trough 9 via a fourth connecting pipe 10. Connecting pipe 11, a circulating water replenishment tank 13 is set on one side of the secondary sedimentation tank 12. The circulating water replenishment tank 13 is connected to the top of the secondary sedimentation tank 12 through a connecting pipe 14. The circulating water replenishment tank 13 is connected to the riser pipe water seal tank 2 through an ammonia removal mechanism, which can recycle the clean water in the riser pipe water seal tank 2, reducing the waste of water resources. The purification mechanism can repeatedly filter dust, achieving the effect of repeated filtration of coke oven gas through circulation. The ammonia removal mechanism can use the ammonia-absorbing zeolite inside to absorb ammonia in the attached water, reducing the occurrence of ammonia enrichment.

[0024] In one embodiment, such as Figure 1 and Figure 2 As shown, the purification mechanism includes a purification box 4. The input end of the purification box 4 is provided with a first connecting pipe 5. A water seal water supply pipe 7 is provided on one side of the outer end of the first connecting pipe 5, which is connected to the top of the riser water seal tank 2. A water seal water supply valve 8 is provided on the water seal water supply pipe 7. The output end of the purification box 4 is provided with a second connecting pipe 6, which is connected to the primary sedimentation tank 3. Several filter screens 21 are provided inside the purification box 4. The filter screens 21 can repeatedly filter the dust, achieving the effect of repeated filtration of coke oven gas by utilizing the circulation effect.

[0025] In one embodiment, such as Figure 1 As shown, an automatic controller 20 is installed outside the secondary sedimentation tank 12, and a level and pressure transmitter 19 is installed on the secondary sedimentation tank 12. The level and pressure transmitter 19 is used to monitor the liquid level and pressure inside the secondary sedimentation tank 12. The automatic controller 20 can control the start and stop of the circulating water pump 15.

[0026] In one embodiment, such as Figure 1 As shown, a circulating water pump 15 is installed on one side of the top of the secondary sedimentation tank 12. The input end of the circulating water pump 15 is connected to the secondary sedimentation tank 12, and the output end of the circulating water pump 15 is connected to the connecting pipe 14. Water can be injected into the circulating water replenishment tank 13 through the circulating water pump 15.

[0027] In one embodiment, such as Figure 1 and Figure 3 As shown, the ammonia removal mechanism includes an ammonia removal tank 16. The input end of the ammonia removal tank 16 is connected to the circulating water replenishment tank 13 through the fifth connecting pipe 17, and the output end of the ammonia removal tank 16 is connected to the riser water seal tank 2 through the sixth connecting pipe 18. The ammonia removal tank 16 is equipped with ammonia-absorbing zeolite 22. The ammonia-absorbing zeolite 22 in the ammonia removal tank 16 absorbs ammonia gas in the water, preventing corrosion of the metal pipe network due to ammonia gas accumulation.

[0028] In one embodiment, such as Figure 1 and Figure 3 As shown, the input end of the ammonia removal tank 16 is connected to the fifth connecting pipe 17 by a threaded rotation, and the output end of the ammonia removal tank 16 is connected to the sixth connecting pipe 18 by a threaded rotation. The ammonia removal tank 16 can be removed by using the thread to facilitate the replacement of the ammonia absorption zeolite 22.

[0029] Working principle: During use, the clean water in the riser pipe water seal tank 2 flows to the primary sedimentation tank 3. The primary sedimentation tank 3 is used to settle impurities and suspended solids in the water. The effluent from the primary sedimentation tank 3 enters the furnace top water seal tank 9. The furnace top water seal tank 9 is used to absorb heat and evaporate water. A portion of the water absorbs heat and evaporates in the furnace top water seal tank 9. The remaining excess water enters the secondary sedimentation tank 12 through the fourth connecting pipe 11. When the liquid level in the tank is lower than the set value, the automatic controller 20 controls the circulating water pump 15 to start, and transports the settled clean water in the secondary sedimentation tank 12 to the riser pipe circulating water replenishment tank 13 for recycling through the connecting pipe 14. When the liquid level in the tank reaches the set value, the automatic controller 20 controls the circulating water pump 15 to stop working, stopping the delivery of clean water. This allows the clean water in the riser pipe water seal tank 2 to be recycled, reducing water waste.

Claims

1. A device for recycling clean water inside the water seal of a coke oven riser pipe, comprising a riser pipe body (1), characterized in that, The riser body (1) is provided with a riser water seal trough (2) on the top periphery. A primary sedimentation tank (3) is provided on one side of the riser body (1). The primary sedimentation tank (3) is connected to the riser water seal trough (2) through a purification mechanism. A furnace top water seal trough (9) is provided on one side of the primary sedimentation tank (3). The furnace top water seal trough (9) is connected to the primary sedimentation tank (3) through a third connecting pipe (10). A secondary sedimentation tank (12) is provided on one side of the furnace top water seal trough (9). The secondary sedimentation tank (12) is connected to the furnace top water seal trough (9) through a fourth connecting pipe (11). A circulating water replenishment tank (13) is provided on one side of the secondary sedimentation tank (12). The circulating water replenishment tank (13) is connected to the top of the secondary sedimentation tank (12) through a connecting pipe (14). The circulating water replenishment tank (13) is connected to the riser water seal trough (2) through an ammonia removal mechanism.

2. The coke oven riser pipe water seal internal clean water recycling device according to claim 1, characterized in that, The purification mechanism includes a purification box (4), the input end of the purification box (4) is provided with a first connecting pipe (5), the outer end of the first connecting pipe (5) is provided with a water seal water supply pipe (7) which is connected to the top of the riser water seal trough (2), the water seal water supply pipe (7) is provided with a water seal water supply valve (8), the output end of the purification box (4) is provided with a second connecting pipe (6) which is connected to the first-stage sedimentation tank (3), and the purification box (4) is provided with a number of filter screens (21).

3. The coke oven riser pipe water seal internal clean water recycling device according to claim 1, characterized in that, An automatic controller (20) is installed outside the secondary sedimentation tank (12), and a liquid level and pressure transmitter (19) is installed on the secondary sedimentation tank (12).

4. The coke oven riser pipe water seal internal clean water recycling device according to claim 1, characterized in that, A circulating water pump (15) is installed on one side of the top of the secondary sedimentation tank (12). The input end of the circulating water pump (15) is connected to the secondary sedimentation tank (12), and the output end of the circulating water pump (15) is connected to the connecting pipe (14).

5. The coke oven riser pipe water seal internal clean water recycling device according to claim 1, characterized in that, The ammonia removal mechanism includes an ammonia removal tank (16). The input end of the ammonia removal tank (16) is connected to the circulating water replenishment tank (13) through the fifth connecting pipe (17). The output end of the ammonia removal tank (16) is connected to the riser water seal tank (2) through the sixth connecting pipe (18). The ammonia removal tank (16) is equipped with ammonia-absorbing zeolite (22).

6. The coke oven riser pipe water seal internal clean water recycling device according to claim 5, characterized in that, The input end of the ammonia removal tank (16) is connected to the fifth connecting pipe (17) by a threaded rotation, and the output end of the ammonia removal tank (16) is connected to the sixth connecting pipe (18) by a threaded rotation.

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