Automatic circulating water supply system for cooling water of dry quenching water seal

A technology of automatic circulation and water supply system, applied in the field of coking, can solve the problems of reducing the service life of water point equipment, increasing the labor intensity of workers, uneconomical discharge, etc. dirt effect

Active Publication Date: 2021-11-26
SHANDONG SHIHENG SPECIAL STEEL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The coke CDQ water seal cooling circulating water system is the key to ensure the normal operation of the furnace top water seal tank. There are generally three water supply schemes for the water seal tank or other water points in the prior art. One is to use a water pump to pump desalted water into Water seal tanks or other water points, replenish water in time according to the water level. The disadvantage is that the desalted water is discharged after being supplied to the water seal tank or other cooling water points. Individual recovery is set up, but purchased or self-made desalinated water and external discharge are not economical.
The second is to use the comprehensive water circulation water in the coking production process to supply water to the water seal tank or other water points for CDQ through the water pump. The disadvantage of this water supply scheme is that the coking production water is used directly, and the water source has many impurities, which leads to the water seal tank. Or other water point equipment fouling phenomenon is serious, frequent cleaning increases the labor intensity of workers, and at the same time reduces the service life of water point equipment

Method used

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  • Automatic circulating water supply system for cooling water of dry quenching water seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The pump group includes a first pressurization pump 11, a second pressurization pump 12 and an emergency pump 13, and the first pressurization pump 11, the second pressurization pump 12 and the emergency pump 13 all connect the main multi-stage filter water tank 4 through the pipeline a14. Reclaimed water is supplied into the accident water tank 5;

[0030] Specifically, the emergency water tank 5 can be supplied with water by the first booster pump 11, the second booster pump 12 and the emergency pump 13, wherein the emergency pump 13 has a backup power supply, which can be started using the backup power supply in the event of a power failure, thereby Avoid the phenomenon of water cut-off when the power is cut off. When the power is not cut off, water can be supplied by the first booster pump 11 and the second booster pump 13 .

[0031] The inside of the main multi-stage filter water tank 4 and the auxiliary multi-stage filter water tank 6 are provided with sedimentati...

Embodiment 2

[0033] Wherein, the auxiliary multi-stage filtered water tank 6 supplies water to the main multi-stage filtered water tank 4 through the pipeline b15, wherein one end of the pipeline b15 is installed at the bottom sedimentation cavity of the auxiliary multi-stage filtered water tank 6, and the other end is installed at the bottom of the main multi-stage filtered water tank 4 The top position of the high sedimentation chamber can introduce the relatively clean water source in the auxiliary multi-stage filter water tank 6 into the main multi-stage filter water tank 4 for sedimentation and filtration, and the circulation in turn can ensure the cleanness of the water source entering the accident water tank 5;

[0034] The accident water tank 5 supplies water to the furnace top water seal tank 7, the dust removal emergency water seal tank 8 and the CDQ emergency water seal tank 9 through the pipeline c16, and the furnace top water seal tank 7, the dust removal emergency water seal ta...

Embodiment 3

[0036] The main multi-stage filter water tank 4 is equipped with a float switch inside. The float switch controls the liquid level of the water tank through the central control. Carry out automatic water replenishment; when the float switch detects that the liquid level is higher than the set liquid level, stop the water replenishment pump 3 through the central control to replenish water;

[0037] The central control can be PLC, which sets the liquid level data threshold. When the float switch detects that the liquid level value is lower than the threshold, the PLC will control the replenishment pump 3 to automatically replenish water to the main multi-stage filter water tank 4; when the float switch detects When the liquid level value is higher than the threshold value, the PLC will control the supplementary water pump 3 to stop working, so as to avoid the overflow of the main multi-stage filter water tank 4;

[0038] The top position of one side of the main multi-stage filte...

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PUM

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Abstract

The invention relates to an automatic circulating water supply system for cooling water of a dry quenching water seal, which comprises an underground reservoir for storing soft water discharged by a blast furnace blow-off pipe; a water supplementing pump installed in the underground reservoir and used for supplying water to a main multi-stage filtering water tank; the multi-stage filtering water tank supplementing the water to an accident water tank through a pump set; the accident water tank is used for supplying the water to a furnace top water seal tank, a dust removal emergency water seal tank and a dry quenching emergency water seal tank; and an auxiliary multi-stage filtering water tank used for filtering inlet water of the furnace top water seal tank, the dust removal emergency water seal tank and the dry quenching emergency water seal tank and supplying the water to the main multi-stage filtering water tank. According to the invention, boiler blow-off water is utilized, so that the cost for purchasing or self-making demineralized water is saved, and the waste of boiler blow-off soft water resource discharge is avoided; large-flow water supply can be performed during water shortage; and the multi-stage filtering circulating water tank is designed, so that the cleanliness of circulating water is guaranteed, the treatment cost is low, and the service life of the furnace top water seal tank and other water consumption point equipment is prolonged.

Description

technical field [0001] The invention belongs to the field of coking, and in particular relates to an automatic circulating water supply system for CDQ water-sealed cooling water. Background technique [0002] The coke CDQ water seal cooling circulating water system is the key to ensure the normal operation of the furnace top water seal tank. There are generally three water supply schemes for the water seal tank or other water points in the prior art. One is to use a water pump to pump desalted water into Water seal tanks or other water points, replenish water in time according to the water level. The disadvantage is that the desalted water is discharged after being supplied to the water seal tank or other cooling water points. Individual recovery is set up, but purchased or self-made desalinated water and external discharge are not economical. . The second is to use the comprehensive water circulation water in the coking production process to supply water to the water seal ...

Claims

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Application Information

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IPC IPC(8): C10B39/00C10B39/02B01D36/04
CPCC10B39/00C10B39/02B01D36/04
Inventor 李续东李培松方永峰李希宝欧阳光秀
Owner SHANDONG SHIHENG SPECIAL STEEL GROUP
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