Anti-blocking device for coke quenching pump head of coke oven

Abstract

The utility model discloses an anti-blocking device for a coke quenching pump head of a coke oven, which comprises a coke quenching pump, the pump head of the coke quenching pump is arranged in a coke quenching tank and is connected with a gas path pipeline, and the gas path pipeline is connected with gas supply equipment; a pulse electromagnetic valve is arranged on the gas path pipeline, so that the gas supply equipment can provide pulse gas for the gas path pipeline, and the pump head is purged through the pulse gas. A pump head of the coke quenching pump is cylindrical, a plurality of filter holes are formed in the cylinder wall of the pump head, and the pump head is transversely arranged in the coke quenching tank; the air outlet end of the air path pipeline is fixedly connected to the upper portion of the pump head, so that outlet air of the air path pipeline can purge the pump head from top to bottom through the filter holes. The gas supply equipment is a steam pocket, and the gas outlet end of the steam pocket is connected with the gas path pipeline. The pump head of the quenching pump can be prevented from being blocked, and normal operation of the quenching pump is ensured.

Description

Technical Field

[0001] This utility model relates to the field of coke oven quenching technology, and in particular to an anti-clogging device for coke oven quenching pump heads. Background Technology

[0002] Wet quenching is a common quenching method in my country's coking industry. However, due to environmental protection and energy conservation considerations, some companies often use dry quenching, relegating wet quenching to a backup method. Wet quenching often generates significant amounts of wastewater and dust during production. The wastewater can be recycled for further wet quenching. The quenching pump is a crucial piece of equipment in wet quenching, and its proper operation directly impacts coke quality and production progress. Because the quenching wastewater contains a large amount of dust, long-term sedimentation without timely treatment can cause pump head blockage, resulting in low or no water flow to the quenching pump and reduced pump efficiency. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides an anti-clogging device for the coke quenching pump head, which aims to prevent the pump head of the coke quenching pump from clogging and ensure the normal operation of the coke quenching pump.

[0004] Technical solution: To achieve the above objectives, this utility model provides an anti-clogging device for a coke oven quenching pump head, comprising a coke quenching pump, the pump head of which is installed in the quenching tank, and a gas pipeline connected to the pump head, which is connected to a gas supply device; a pulse solenoid valve is installed on the gas pipeline, enabling the gas supply device to provide pulse gas to the gas pipeline and to purge the pump head with the pulse gas.

[0005] Furthermore, the air outlet of the air pipeline is fixedly connected to the top of the pump head, so that the air outlet of the air pipeline can blow the pump head from top to bottom.

[0006] Furthermore, the pump head of the coke quenching pump is cylindrical, with several filter holes on its cylindrical wall, and the pump head is placed horizontally in the coke quenching tank; the outlet end of the gas pipeline is fixedly connected to the top of the pump head, so that the gas outlet of the gas pipeline can blow the pump head from top to bottom through the filter holes.

[0007] Furthermore, the gas supply device is a steam drum, and the outlet end of the steam drum is connected to the gas pipeline.

[0008] Furthermore, the gas pipeline is also equipped with a venting electric valve and a first shut-off valve. The venting electric valve is located between the pulse solenoid valve and the pump head, and the first shut-off valve is located between the pulse solenoid valve and the steam drum.

[0009] Furthermore, the air inlet end of the steam drum is connected to an air inlet pipe, and a second shut-off valve, a self-regulating valve, and a pressure gauge are sequentially arranged on the air inlet pipe along the gas flow direction.

[0010] Beneficial effects: This utility model provides an anti-clogging device for the coke oven quenching pump head. The steam drum is connected to the top of the coke quenching pump head through a gas pipeline. The gas pipeline has a pulse solenoid valve, which enables the gas pipeline to generate pulse gas and blow away the deposits attached to the pump head from top to bottom, thereby solving the problem of pump head clogging. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] As attached Figure 1 The aforementioned anti-clogging device for a coke oven quenching pump head includes a quenching pump 14, with the pump head 2 at the inlet end of the quenching pump 14 installed in the quenching tank 1, the outlet end of the quenching pump 14 connected to the quenching water high tank 16, the quenching pump 14 being driven by an electric motor 15, and a check valve 13 installed on the outlet pipeline of the quenching pump 14.

[0014] The pump head 2 of the coke quenching pump 14 is connected to an air pipeline 3. The outlet end of the air pipeline 3 is connected to the pump head 2, and the inlet end of the air pipeline 3 is connected to the air supply equipment. The air supply equipment supplies air to the air pipeline 3 so that the air outlet of the air pipeline 3 can purge the pump head 2 and blow away the deposits attached to the pump head 2 to deal with the problem of blockage of the pump head 2.

[0015] In addition, a pulse solenoid valve 5 is installed on the gas line 3. The presence of the pulse solenoid valve 5 allows the gas supply equipment to provide pulsed gas to the gas line 3, which is then used to purge the pump. Compared to continuous blowing, pulsed gas is more effective at removing blockages from the pump head 2.

[0016] Specifically, as shown in the attached document Figure 1 As shown, the pump head 2 of the coke quenching pump 14 is cylindrical, with several filter holes on its cylindrical wall, and the pump head 2 is placed horizontally in the coke quenching tank 1. The outlet end of the gas pipeline 3 is fixedly connected to the top of the pump head 2, so that the gas outlet of the gas pipeline 3 can blow the pump head 2 from top to bottom through the filter holes, making it easier to blow away the deposits attached to the pump head 2.

[0017] The gas supply equipment is a steam drum 7, which is a cylindrical pressure vessel. The outlet of the steam drum 7 is connected to the gas pipeline 3. A venting electric valve 4 and a first shut-off valve 6 are also installed on the gas pipeline 3. The venting electric valve 4 is located between the pulse solenoid valve 5 and the pump head 2, and the first shut-off valve 6 is located between the pulse solenoid valve 5 and the steam drum 7. An inlet pipe is connected to the inlet of the steam drum 7. A second shut-off valve 12, a self-regulating valve 11, and a pressure gauge 10 are sequentially installed on the inlet pipe along the gas flow direction. A safety valve 9 is also installed above the steam drum 7, and an electronic drain valve 8 is installed at the bottom of the steam drum 7.

[0018] Among them, the venting electric valve 4 and the electromagnetic pulse valve are both introduced into the coke quenching PLC control system in the power distribution room, which can realize linkage or single-machine control. When linkage control is used, the pulse width and time can be reasonably set according to the time interval and the number of coke quenching furnaces.

[0019] Currently, the main methods for cleaning dust in the quenching pool 1 and addressing pump head blockage issues are during major overhauls and shutdowns. During production, water or air pipes are used to blow clean the outside of the pump head 2. These methods are inefficient and pose risks of poisoning or falling into the quenching pool 1. In contrast, the anti-blocking device in this invention is flexible, reliable, and scientific, effectively reducing various risks.

[0020] Furthermore, all components in this invention are common facilities, requiring minimal investment, easy maintenance, and simple operation, while effectively utilizing existing coke quenching control systems. In addition, this invention utilizes pulsed gas to clear blockages, achieving high and thorough cleaning efficiency, effectively removing sediment adhering to the pump head 2, and ensuring unobstructed water intake.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An anti-clogging device for a coke oven quenching pump head, characterized in that: The coke quenching pump (14) is included. The pump head (2) of the coke quenching pump (14) is installed in the coke quenching pool (1). A gas pipeline (3) is connected to the pump head (2) of the coke quenching pump (14). The gas pipeline (3) is connected to the gas supply equipment. A pulse solenoid valve (5) is installed on the gas pipeline (3) so that the gas supply equipment can provide pulse gas to the gas pipeline (3) and purge the pump head (2) with the pulse gas.

2. The anti-clogging device for a coke oven quenching pump head according to claim 1, characterized in that: The outlet end of the air pipeline (3) is fixedly connected above the pump head (2), so that the air outlet of the air pipeline (3) can blow the pump head (2) from top to bottom.

3. The anti-clogging device for a coke oven quenching pump head according to claim 2, characterized in that: The pump head (2) of the quenching pump (14) is cylindrical, with several filter holes on its cylindrical wall, and the pump head (2) is placed horizontally in the quenching tank (1); the outlet end of the gas pipeline (3) is fixedly connected above the pump head (2), so that the gas outlet of the gas pipeline (3) can blow the pump head (2) from top to bottom through the filter holes.

4. The anti-clogging device for a coke oven quenching pump head according to claim 1, characterized in that: The gas supply equipment is a steam drum (7), and the outlet end of the steam drum (7) is connected to the gas pipeline (3).

5. The anti-clogging device for a coke oven quenching pump head according to claim 4, characterized in that: The gas pipeline (3) is also equipped with a venting electric valve (4) and a first shut-off valve (6). The venting electric valve (4) is located between the pulse solenoid valve (5) and the pump head (2), and the first shut-off valve (6) is located between the pulse solenoid valve (5) and the steam drum (7).

6. The anti-clogging device for a coke oven quenching pump head according to claim 4, characterized in that: The air inlet of the steam drum (7) is connected to the air inlet pipe, and the air inlet pipe is provided with a second shut-off valve (12), a self-adjusting valve (11) and a pressure gauge (10) in sequence along the gas flow direction.

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