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An automatic circulating water supply system for CDQ water seal cooling water

An automatic circulation and water supply system technology, applied in the field of coking, can solve the problems of reducing the service life of water point equipment, increasing labor intensity of workers, and many impurities in water source, so as to improve service life, low treatment cost, and eliminate scaling of water point equipment Effect

Active Publication Date: 2022-07-12
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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  • An automatic circulating water supply system for CDQ water seal cooling water

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The pump set includes a first booster pump 11, a second booster pump 12 and an emergency pump 13. The first booster pump 11, the second booster pump 12 and the emergency pump 13 all connect the main multistage filtered water tank 4 to the main multistage filtered water tank 4 through the pipeline a14. The reclaimed water is supplied into the accident water tank 5;

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

[0031] The main multi-stage filtration water tank 4 and the auxiliary multi-stage filtration water tank 6 are sequent...

Embodiment 2

[0033] 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 chamber of the auxiliary multi-stage filtered water tank 6, and the other end is installed in 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 filtration water tank 6 into the main multi-stage filtration water tank 4 for precipitation and filtration, and circulate in sequence, which 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 dry quenching emergency water seal tank 9 through the pipeline c16, the furnace top water seal tank 7, the dust removal emergency water seal tank...

Embodiment 3

[0036] The main multi-stage filtered water tank 4 is equipped with a float switch. The float switch controls the liquid level of the water tank through the central control. When it is detected that the liquid level is lower than the set liquid level, the central control supplies the main multi-stage filtered water tank 4 through the make-up pump 3. Automatic water replenishment; when the float switch detects that the liquid level is higher than the set liquid level, the central control stops the replenishment pump 3 to replenish water;

[0037] The central control can be a 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 filtered water tank 4; When the liquid level value is higher than the threshold value, the PLC will control the make-up pump 3 to stop working to avoid the overflow of the m...

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Abstract

The present invention is an automatic circulating water supply system for dry quenching water-sealed cooling water. The underground water storage tank is used to store the soft water discharged from the blast furnace sewage pipe; Multi-stage filtered water tank for water supply; multi-stage filtered water tank to supply water to accident water tank through pump set; accident water tank to supply water to the furnace top water sealing tank, dust removal emergency water sealing tank and CDQ emergency water sealing tank; auxiliary multi-stage water tank Filter water tank, used to filter the 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 supply water to the main multi-stage filter water tank. The invention utilizes the boiler sewage, saves the cost of outsourcing or self-made demineralized water, and avoids the waste of the boiler sewage and soft water resources to be drained out; large-flow water supply can be carried out when water is short; a multi-stage filtration circulating water tank is designed to ensure the circulating water The cleanliness of the furnace is lower, the treatment cost is lower, and the service life of the furnace top water sealing tank and other water point equipment is improved.

Description

technical field [0001] The invention belongs to the field of coking, and in particular relates to an automatic circulating water supply system for dry quenching coke water seal cooling water. Background technique [0002] The CDQ water seal cooling circulating water system is mainly the key to ensure the normal operation of the furnace top water seal tank. There are generally three water supply schemes for water supply to the water seal tank or other water points in the prior art. The water seal tank or other water points should be replenished in time according to the water level. The disadvantage is that the demineralized water is supplied to the water seal tank or other cooling water points and then drained out. Recycling is set up individually, but it is not economical to purchase or self-made demineralized water and drain it out. . The second is to use the integrated water circulating water in the coking production process to supply water to the water sealing tank or ot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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