Water circulating device for water seal water at top of dry quenching furnace

Abstract

The utility model discloses a water circulating device for water seal at the top of a dry quenching furnace, belongs to the technical field of water seal water circulating production, and solves the problems that water resources are wasted due to the fact that water seal water is directly discharged at present, and the water seal water cannot be used due to the fact that coke powder is easily left on the water seal water. The device comprises an accident water tank, a settling water tank and a recycling water tank, the accident water tank is connected to the water inlet end of the dry quenching furnace water seal through a water pipe, the height of the accident water tank is higher than that of the dry quenching furnace water seal, and the water outlet end of the dry quenching furnace water seal is sequentially connected with the settling water tank and the recycling water tank through water pipes. The sediment water tank is connected to a water inlet of the accident water tank through a common bleeder, and the reuse water tank is connected to the water inlet of the accident water tank through a water conveying pipeline set. The circulating water device for the furnace top water seal of the dry quenching furnace is simple in process, is formed by precipitating, filtering, pressing and recycling the water for the water seal, is stable and reliable to use, and has dual significance of saving energy, reducing consumption and reducing operation cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of water seal water circulation production, and particularly relates to a water using device for water seal water circulation at the top of a coke dry quenching furnace. Background Art

[0002] Coke dry quenching is an energy-saving, environment-friendly coking process that can improve the quality of coke. A coke dry quenching furnace is an important equipment for a coke dry quenching project and is the main place for coke quenching. A water seal tank is arranged at the top of the coke dry quenching furnace, and its function is to solve the problems of top sealing and temperature reduction of the furnace. The water seal tank cooperates with the furnace cover or the water seal cover to prevent dust from overflowing or coke powder from leaking in. The water seal tank has a coiled snake shape at the bottom and consists of a water inlet pipe and an overflow drainage pipe at the upper part. During the operation of coke dry quenching, the water seal tank must be filled with water, otherwise the red-hot coke at the furnace mouth will burn the coke pot cover to deformation, which will seriously affect the smooth progress of the project.

[0003] In current production, the water seal of the coke dry quenching furnace is directly connected to a water delivery pipe, and the water used for the water seal is directly and continuously discharged through the water seal overflow port. Since the water seal must always be filled with water and the water temperature needs to be maintained, the water consumption is extremely large. Directly discharging the water used for the water seal will seriously waste water resources, and it is easy for coke powder to remain in the water used for the water seal and cannot be directly used. Therefore, a water using device for water seal water circulation at the top of a coke dry quenching furnace is designed to facilitate the adjustment of water seal water circulation at the top of the coke dry quenching furnace at all times, achieving the effects of convenient use, energy saving and consumption reduction. Content of the Utility Model

[0004] The utility model provides a water using device for water seal water circulation at the top of a coke dry quenching furnace to solve the problems of water resource waste caused by directly discharging the water used for the water seal and the inability to use the water used for the water seal due to easy residue of coke powder.

[0005] The technical solution of the utility model is: a water using device for water seal water circulation at the top of a coke dry quenching furnace, which is characterized in that: it includes an accident water tank, a sedimentation water tank and a recycled water tank. The accident water tank is connected to the water inlet end of the water seal of the coke dry quenching furnace through a water pipe. The height of the accident water tank is higher than that of the water seal of the coke dry quenching furnace. The water outlet end of the water seal of the coke dry quenching furnace is successively connected to a sedimentation water tank and a recycled water tank through water pipes. The sedimentation water tank is connected to the water inlet of the accident water tank through a common blow-off pipe. The recycled water tank is connected to the water inlet of the accident water tank through a water delivery pipeline group.

[0006] As a further improvement of the utility model, the water delivery pipeline group is provided with a plurality of water delivery pipelines. The water delivery pipeline includes a pipeline pump and an electromagnetic valve. The length of a single-way pipeline is nearly 50 meters, and the water in the recycled water tank needs to be transported to the accident water tank by using the pipeline pump for pressure boosting.

[0007] As a further improvement of the utility model, the sedimentation water tank is also connected to the water inlet of the accident water tank through an emergency blow-off pipe.

[0008] As a further improvement of the utility model, the water inlet end of the recycled water tank is also connected to a cooling pond through a long shaft pump, and the water in the cooling pond is directly replenished into the recycled water tank.

[0009] As a further improvement of the utility model, the water inlet end of the recycled water tank is also connected to a production water make-up pipe, and a production water make-up valve is provided on the production water make-up pipe.

[0010] As a further improvement of the utility model, a liquid level sensor is provided in the accident water tank, and the liquid level sensor is signal-connected to the solenoid valve, the normal discharge pipe valve, the emergency discharge pipe valve, and the production water make-up valve. When the liquid level sensor detects water shortage, it transmits a signal for water replenishment.

[0011] The beneficial effects of the utility model are as follows: By placing the accident water tank on the top of the coke dry quenching furnace, the water is sent into the coke dry quenching furnace by using the height difference, and then the water is discharged from the overflow pipe of the water seal trough through the pressure brought by the height difference. After passing through the sedimentation water tank, the recycled water tank, and finally through the discharge pipeline and the water delivery pipeline group, the filtered water seal water flows back into the accident water tank again, forming a water seal circulating water use device for the top of the coke dry quenching furnace, which can effectively save water resources; through the sedimentation water tank and the filtering device therein, the coke powder in the water seal water is effectively filtered, enabling the water seal water to be reused. The utility model has a simple process, stable and reliable use, and has the dual significance of energy conservation and consumption reduction and reducing operation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the utility model.

[0013] In the figure: 1 - coke dry quenching furnace water seal, 2 - accident water tank, 3 - sedimentation water tank, 4 - recycled water tank, 5 - cooling pond, 6 - pipeline pump, 7 - water delivery pipeline, 8 - solenoid valve, 9 - normal discharge pipe, 10 - emergency discharge pipe, 11 - production water make-up pipe, 12 - liquid level sensor, 13 - normal discharge pipe valve, 14 - emergency discharge pipe valve, 15 - production water make-up valve, 16 - long shaft pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following further describes the present utility model in detail in conjunction with the drawings and specific embodiments.

[0015] As Figure 1 shown, a water seal water circulation use device for the top of a coke dry quenching furnace is characterized in that it includes an accident water tank 2, a sedimentation water tank 3, and a recycled water tank 4. The accident water tank 2 is connected to the water inlet end of the coke dry quenching furnace water seal 1 through a water pipe, and the height of the accident water tank 2 is higher than that of the coke dry quenching furnace water seal 1. The water outlet end of the coke dry quenching furnace water seal 1 is sequentially connected to the sedimentation water tank 3 and the recycled water tank 4 through a water pipe. The sedimentation water tank 3 is connected to the water inlet of the accident water tank 2 through a normal discharge pipe 9 and an emergency discharge pipe 10. The recycled water tank 4 is connected to the water inlet of the accident water tank 2 through a water delivery pipeline group.

[0016] The water conveyance pipeline group is provided with a plurality of water conveyance pipelines 7. The water conveyance pipeline 7 includes a pipeline pump 6 and a solenoid valve 8. The length of the one-way pipeline of the water conveyance pipeline 7 is nearly 50 meters. Only by using the pipeline pump to boost the pressure can the water in the reuse water tank 4 be transported to the accident water tank 2.

[0017] The sedimentation water tank 3 is also connected to the water inlet of the accident water tank 2 through an emergency drain pipe 10.

[0018] The water inlet end of the reuse water tank 4 is also connected with a cooling pond 5 through a long-shaft pump 16, and the water in the cooling pond 5 is directly replenished into the reuse water tank 4.

[0019] The water inlet end of the reuse water tank 4 is also connected with a production water make-up pipe 11. A production water make-up valve 15 is arranged on the production water make-up pipe 11 to keep the reuse water tank full of water.

[0020] A liquid level sensor 12 is arranged in the accident water tank 2. The liquid level sensor 12 is connected with the solenoid valve 8, the normal drain pipe valve 13, the emergency drain pipe valve 14, and the production water make-up valve 15 through signals. When the liquid level sensor 12 detects water shortage, it transmits a signal for water replenishment.

[0021] During use, the water in the accident water tank 2 flows into the dry quenching furnace water seal 1 through the height difference. The overflow port of the dry quenching furnace water seal 1 discharges the used water to the sedimentation water tank 3. The water for the water seal precipitates the coke powder to the bottom in the sedimentation water tank 3, and filters the coke powder at the water outlet, so that the water for the water seal can be reused. One end of the water outlet of the sedimentation water tank 3 is connected with a reuse water tank 4. There is sufficient clean water stored in the reuse water tank 4, mainly the water replenished by the sedimentation water tank 3. However, due to the too high temperature of the dry quenching furnace water seal 1, part of the water evaporates. Therefore, a production water make-up pipe 11 is also connected to the reuse water tank 4 to supplement water. At the same time, the clean water stored in the cooling pond 5 is also replenished into the reuse water tank 4 through the long-shaft pump 16, so that there is sufficient water stored in the reuse water tank 4. The reuse water tank 4 is connected to the accident water tank 2 through a plurality of water conveyance pipelines 7. The water in the reuse water tank 5 is replenished into the accident water tank 2 through the pipeline pump 6. A normal drain pipe 9 and an emergency drain pipe 10 are connected between the accident water tank 2 and the sedimentation water tank 3. The normal drain pipe 9 and the emergency drain pipe 10 directly replenish the sedimentation water tank 3 to the reuse water tank 2 to relieve the pressure of the water conveyance pipeline 7. The liquid level sensor 12 in the accident water tank 2 is connected with the solenoid valve 8, the normal drain pipe valve 13, the emergency drain pipe valve 14, and the production water make-up valve 15 through signals. When the liquid level sensor 12 shows a low liquid level, it will transmit signals to the solenoid valve 6, the normal drain pipe valve 13, the emergency drain pipe valve 14, and the production water make-up valve 15, and the valves will open wider at the same time to increase the water replenishment amount, ensuring that there is sufficient water in the accident water tank 2 and the reuse water tank 4, so that there is sufficient water in the dry quenching furnace water seal 1.

Claims

1. A water circulation device for water seal water at the top of a dry quenching furnace, characterized in that: The invention comprises an accident water tank (2), a sedimentation water tank (3) and a reuse water tank (4); the accident water tank (2) is connected to the water inlet of a dry quenching furnace water seal (1) through a water pipe; the height of the accident water tank (2) is higher than that of the dry quenching furnace water seal (1); the water outlet of the dry quenching furnace water seal (1) is connected to the sedimentation water tank (3) and the reuse water tank (4) in sequence through a water pipe; the sedimentation water tank (3) is connected to the water inlet of the accident water tank (2) through a common vent pipe (9); and the reuse water tank (4) is connected to the water inlet of the accident water tank (2) through a water delivery pipeline group.

2. A water circulation device for water seal water at the top of a CDQ furnace according to claim 1, characterized in that: The water delivery pipeline group is provided with a plurality of water delivery pipelines (7), and the water delivery pipelines (7) are provided with pipeline pumps (6) and solenoid valves (8).

3. A water circulation device for water seal water at the top of a CDQ furnace according to claim 1, characterized in that: The sedimentation water tank (3) is also connected to the water inlet of the accident water tank (2) via an emergency relief pipe (10).

4. The device for circulating water for water seal water at the top of a CDQ furnace according to claim 1, characterized in that: The water inlet end of the recycled water tank (4) is also connected to a cooling pool (5) via a long-axis pump (16).

5. A water circulation device for water seal water at the top of a CDQ furnace according to claim 4, characterized in that: The water inlet end of the recycled water tank (4) is also connected to a produced water replenishment pipe (11), and a produced water replenishment valve (15) is provided on the produced water replenishment pipe (11).

6. A CDQ furnace top water seal water circulation device according to any one of claims 1 to 5, characterized in that: A liquid level sensor (12) is provided in the emergency water tank (2), and the liquid level sensor (12) is connected to the electromagnetic valve (8), the common relief pipe valve (13), the emergency relief pipe valve (14), and the production water replenishment valve (15) through signals.

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