Coke oven water seal water recycling system

Abstract

The utility model discloses a coke oven water seal water recycling system which comprises a coke oven, the tail end of an ascending pipe is connected with an ascending pipe water seal, the tail end of a coal charging hole is connected with a negative pressure coal charging water seal, the tail end of a coal gas main pipeline is connected with a tail end water seal, and water outlets of the ascending pipe water seal, the negative pressure coal charging water seal and the tail end water seal are all communicated with a water inlet of a waste water pool. A water outlet of the wastewater pool is communicated with a water inlet of the ammonia removal tank, a water outlet of the ammonia removal tank is communicated with a water inlet of the furnace top water storage tank, and a water outlet of the furnace top water storage tank is communicated to water inlets of the ascending pipe water seal, the negative pressure coaling water seal and the tail end water seal; and the ammonia removal tank is filled with ammonia absorption zeolite. The waste water pool and the furnace top water storage tank are arranged, water seal water in the ascending pipe water seal, the negative pressure coal charging water seal and the tail end water seal can be recycled, waste of water resources can be reduced, and meanwhile the treatment pressure of the coke quenching pool can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coke oven water seal equipment, in particular to a coke oven water seal water recycling system. Background Art

[0002] The main purpose of the coke oven water seal is to prevent the leakage of raw gas, and it plays an important role in eliminating pollution and improving the coke oven operating environment in production. At present, the coke oven is generally designed with three water seals: the water seal of the riser, the water seal at the end of the gas main pipeline, and the negative pressure water seal of the coal loading hole on the top of the furnace. Under normal circumstances, the water seal water will be discharged into the quenching pool in the basement of the coke oven, resulting in excessive water in the quenching pool, affecting the treatment capacity of the quenching pool, and at the same time causing a large waste of water resources. Therefore, it is necessary to recycle the water seal water to save water resources and alleviate the treatment pressure of the quenching water. In addition, since ammonia is very 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 be enriched. When the concentration is too high, it will corrode the pipeline. Therefore, it is necessary to develop a coke oven water seal water recycling system that can remove ammonia in water to meet the needs. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a coke oven water seal water recycling system, which can recycle the water seal water, which is beneficial to reduce the waste of water resources and reduce the processing pressure of the coke quenching pool; the ammonia absorbing zeolite therein can be used to adsorb ammonia in the water to reduce the occurrence of ammonia enrichment.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a coke oven water seal water recycling system, comprising a coke oven, a gas main pipeline is provided at the bottom of the coke oven, a riser is provided on the side, and a furnace roof coal loading hole is provided on the top, a furnace roof water storage tank is provided above the coke oven, and a wastewater pool is provided below, the end of the riser is connected with a riser water seal, the end of the coal loading hole is connected with a negative pressure coal loading water seal, the end of the gas main pipeline is connected with an end water seal, the drain outlets of the riser water seal, the negative pressure coal loading water seal and the end water seal are all connected with the water inlet of the wastewater pool, the water outlet of the wastewater pool is connected with the water inlet of the ammonia removal tank, the water outlet of the ammonia removal tank is connected with the water inlet of the furnace roof water storage tank, and the water outlet of the furnace roof water storage tank is connected to the water inlets of the riser water seal, the negative pressure coal loading water seal and the end water seal; the ammonia removal tank is filled with ammonia absorbing zeolite.

[0005] Furthermore, a tank cover is threadedly connected to the top of the ammonia removal tank.

[0006] Furthermore, an ammonia removal water inlet pipe is connected to the bottom of the ammonia removal tank, and the ammonia removal water inlet pipe is threadedly connected to the wastewater pool outlet pipe of the wastewater pool; an ammonia removal water outlet pipe is connected to the tank cover, and the ammonia removal water outlet pipe is threadedly connected to the water tank inlet pipe of the furnace top water tank.

[0007] Furthermore, a water pump is connected between the wastewater pool and the ammonia removal tank.

[0008] Compared with the prior art, the utility model has the following advantages:

[0009] 1. The utility model is provided with a wastewater pool and a furnace top water storage tank, which can recycle the water in the riser water seal, the negative pressure coal loading water seal and the end water seal, which is beneficial to reduce the waste of water resources and reduce the processing pressure of the quenching pool; an ammonia removal tank is provided, and the ammonia absorbing zeolite in the tank can be used to absorb ammonia in the water to reduce the occurrence of ammonia enrichment.

[0010] 2. The ammonia removal tank of the utility model adopts threaded connection, which is convenient for replacement and maintenance, reduces the time used for maintenance, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the ammonia removal tank of the utility model.

[0013] Among them: 1. coke oven, 2. riser, 3. riser water seal, 4. gas main pipeline, 5. wastewater pool, 5a. wastewater pool outlet pipe, 6. end water seal, 7. water pump, 8. ammonia removal tank, 8a. tank cover, 8b. ammonia removal water inlet pipe, 8c. ammonia removal water outlet pipe, 9. negative pressure coal loading water seal, 10. coal loading hole, 11. furnace top water tank, 11a. water tank inlet pipe, 12. ammonia absorbing zeolite. DETAILED DESCRIPTION

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] like Figure 1 , Figure 2 A coke oven water seal water recycling system shown in the figure comprises a coke oven 1, a gas main pipeline 4 is provided at the bottom of the coke oven 1, a riser 2 is provided on the side, and a furnace roof coal loading hole 10 is provided on the top, a furnace roof water storage tank 11 is provided above the coke oven 1, and a wastewater tank 5 is provided below, the end of the riser 2 is connected to the riser water seal 3, the end of the coal loading hole 10 is connected to the negative pressure coal loading water seal 9, the end of the gas main pipeline 4 is connected to the end water seal 6, the drainage outlets of the riser water seal 3, the negative pressure coal loading water seal 9, and the end water seal 6 are all connected to the water inlet of the wastewater tank 5, the water outlet of the wastewater tank 5 is connected to the water inlet of the ammonia removal tank 8, the water outlet of the ammonia removal tank 8 is connected to the water inlet of the furnace roof water storage tank 11, and the water outlet of the furnace roof water storage tank 11 is connected to the water inlets of the riser water seal 3, the negative pressure coal loading water seal 9, and the end water seal 6; the ammonia removal tank 8 is filled with ammonia absorbing zeolite 12.

[0016] In order to facilitate the replacement of the ammonia absorbing zeolite, a tank cover 8a is threadedly connected to the top of the ammonia removal tank 8.

[0017] In order to facilitate the removal and maintenance of the ammonia removal tank, an ammonia removal water inlet pipe 8b is connected to the bottom of the ammonia removal tank 8, and the ammonia removal water inlet pipe 8b is threadedly connected to the wastewater tank outlet pipe 5a of the wastewater tank 5; an ammonia removal water outlet pipe 8c is connected to the tank cover 8a, and the ammonia removal water outlet pipe 8c is threadedly connected to the water tank inlet pipe 11a of the furnace top water tank 11.

[0018] In order to facilitate water supply, a water pump 7 is connected between the wastewater tank 5 and the ammonia removal tank 8.

[0019] Among them, the water pump in this embodiment is a 40-125A-1.1KW vertical pipeline pump.

[0020] It should be noted that, in the above embodiments, valves are provided on all pipelines.

[0021] The specific working process of the utility model is as follows:

[0022] During the operation of the coke oven 1, the water in the water seal plays a role in preventing gas leakage and maintaining the pressure balance of the entire system. In the actual production process, the water in the water seal needs to be replaced frequently. When replacing, the wastewater in the riser water seal 3, the end water seal 6, and the negative pressure coal-loading water seal 9 is introduced into the wastewater pool 5, and the water is poured into the above-mentioned water seal from the furnace top water storage tank 11. In order to save water resources, the water in the wastewater pool 5 is pumped into the furnace top water storage tank 11 by a water pump 7. In this process, the ammonia absorbing zeolite 12 in the ammonia removal tank 8 absorbs ammonia in the water to prevent the metal pipe network from being corroded due to ammonia enrichment. When replacing, the ammonia removal tank 8 can be removed by thread, and the tank cover 8a can be opened to replace the ammonia absorbing zeolite 12.

Claims

1. A coke oven water seal water recycling system, comprising a coke oven (1), wherein the coke oven (1) is provided with a gas main pipeline (4) at the bottom, a riser (2) at the side, and a furnace top coal loading hole (10) at the top, a furnace top water storage tank (11) at the top, and a wastewater pool (5) at the bottom, characterized in that: The end of the riser (2) is connected to a riser water seal (3), the end of the coal loading hole (10) is connected to a negative pressure coal loading water seal (9), the end of the gas main pipeline (4) is connected to a terminal water seal (6), the drainage outlets of the riser water seal (3), the negative pressure coal loading water seal (9) and the terminal water seal (6) are all connected to the water inlet of the wastewater pool (5), the water outlet of the wastewater pool (5) is connected to the water inlet of the ammonia removal tank (8), the water outlet of the ammonia removal tank (8) is connected to the water inlet of the furnace top water storage tank (11), and the water outlet of the furnace top water storage tank (11) is connected to the water inlets of the riser water seal (3), the negative pressure coal loading water seal (9) and the terminal water seal (6); the ammonia removal tank (8) is filled with ammonia absorbing zeolite (12).

2. The coke oven water seal water recycling system according to claim 1, characterized in that: The top of the ammonia removal tank (8) is threadedly connected with a tank cover (8a).

3. The coke oven water seal water recycling system according to claim 2, characterized in that: The bottom of the ammonia removal tank (8) is connected to an ammonia removal water inlet pipe (8b), and the ammonia removal water inlet pipe (8b) is threadedly connected to the wastewater tank outlet pipe (5a) of the wastewater tank (5); the tank cover (8a) is connected to an ammonia removal water outlet pipe (8c), and the ammonia removal water outlet pipe (8c) is threadedly connected to the water tank inlet pipe (11a) of the furnace top water tank (11).

4. The coke oven water seal water recycling system according to claim 1, characterized in that: A water pump (7) is connected between the wastewater pool (5) and the ammonia removal tank (8).

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