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Double-row, low-pressure and high-flow coke quenching water spray device and coke quenching method using same

A water spray device and large flow technology, applied in coke cooling, coke oven, petroleum industry, etc., can solve the problems of deteriorating workers' operating environment, long debugging and running time, and the strength of coke needs to be improved, so as to reduce environmental pollution, The effect of reducing recoil times and reducing water consumption for coke quenching

Inactive Publication Date: 2015-06-03
HEBEI IRON AND STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content of harmful substances sometimes exceeds the environmental protection standard by several times, causing large-scale pollution, deteriorating the operating environment of workers, and reducing labor efficiency
[0003] This problem exists in domestic coking plants that adopt wet coke quenching; coke quenching adopts the traditional process of spraying water with holes on the pipes, and the diameter of the holes on the water pipes is about ?25mm. Coke, the coke strength needs to be improved after coke quenching, the water content is high and unstable, and the water spray hole is also easy to block, which also brings many problems to the on-site production
Our factory plans to build a dry coke quenching device, but the dry coke quenching equipment is very complicated, and it takes a long time to debug and run. The original wet coke quenching device needs to be used as a backup

Method used

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  • Double-row, low-pressure and high-flow coke quenching water spray device and coke quenching method using same
  • Double-row, low-pressure and high-flow coke quenching water spray device and coke quenching method using same
  • Double-row, low-pressure and high-flow coke quenching water spray device and coke quenching method using same

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A double-row low-pressure and high-flow coke quenching water spray device, the device includes a water spray pipe 1 and a nozzle 2. They are connected by flange 3; the hole diameter of nozzle 2 is 52.8mm, and the inlet pressure of nozzle 2 is 0.1MPa. The number of nozzles 2 on a single water spray pipe 1 is 8, and the total water passage area of ​​nozzles 2 is 0.04 square meters; the nozzle 2 is provided with a needle 4 and a return spring 5 along the direction of water flow, and the pressure that the return spring 5 can withstand is 0.1MPa .

[0021] The coke quenching method based on the double-row low-pressure and high-flow coke quenching water spray device: send the high-temperature coke formed after carbonization into the coke quenching box, and use the water spray device to spray water on the high-temperature coke for one coke quenching. It is 1.5 tons per ton of coke, and the quenching time is about 100 seconds. After the quenching is completed, the coke is disc...

Embodiment 2

[0023] A double-row low-pressure and high-flow coke quenching water spray device, the device includes a water spray pipe 1 and a nozzle 2. They are connected by flange 3; the hole diameter of nozzle 2 is 50mm, and the inlet pressure of nozzle 2 is 0.12MPa. The number of nozzles 2 on a single spray pipe 1 is 10, and the total water passage area of ​​nozzles 2 is 0.045 square meters; the nozzle 2 is provided with a needle 4 and a return spring 5 along the direction of water flow, and the pressure that the return spring 5 can withstand is 0.12MPa .

[0024] The coke quenching method based on the double-row low-pressure and high-flow coke quenching water spray device: send the high-temperature coke formed after carbonization into the coke quenching box, and use the water spray device to spray water on the high-temperature coke for one coke quenching. It is 1.75 tons / ton of coke, the nozzle inlet pressure is 0.1MPa, and the quenching time is about 90 seconds. After the quenching i...

Embodiment 3

[0026] A double-row low-pressure and high-flow coke quenching water spray device, the device includes a water spray pipe 1 and a nozzle 2. They are connected by flange 3; the hole diameter of nozzle 2 is 80mm, and the inlet pressure of nozzle 2 is 0.15MPa. The number of nozzles 2 on a single water spray pipe 1 is 6, and the total water passage area of ​​nozzles 2 is 0.035 square meters; the nozzle 2 is provided with a needle 4 and a return spring 5 along the direction of water flow, and the pressure that the return spring 5 can withstand is 0.15MPa .

[0027] The coke quenching method based on the double-row low-pressure and high-flow coke quenching water spray device: send the high-temperature coke formed after carbonization into the coke quenching box, and use the water spray device to spray water on the high-temperature coke for one coke quenching. It is 1.6 tons / ton of coke, and the quenching time is about 120 seconds. After the quenching is completed, the coke is dischar...

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Abstract

The invention relates to a double-row, low-pressure and high-flow coke quenching water spray device and a coke quenching method using the same. The double-row, low-pressure and high-flow coke quenching water spray device comprises two parallel water spray pipes and nozzles, wherein the nozzles are arranged on the water spray pipes at equal intervals and connected with the water spray pipes by flanges; the hole diameter of each nozzle is 50-80mm, and the inlet pressure of the nozzle is 0.1-0.15MPa. The invention further relates to a coke quenching method using the double-row, low-pressure and high-flow coke quenching water spray device. By adopting the device and the method, the coke quenching water is stably controlled to be less than 4.5%, the coke ratio is reduced by 5-7kg / t, the coke quenching water is saved by about 10%, and the quality of coke is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of metallurgy and coking, and in particular relates to a double-row low-pressure and high-flow coke quenching water spray device and a coke quenching method using the device. Background technique [0002] At present, many coking plants adopt traditional wet coke quenching, and the water content of coke is as high as 5-9%. Moisture is high and unstable, and it is difficult to control in the field. The process requires moisture to be kept at 5% in summer and around 6.8% in winter. High and unstable coke moisture will seriously affect the smooth production of blast furnaces. High moisture will increase the coke ratio, affect the quality of blast furnace gas, block the bag of dust removal, and increase the number of recoil of the bag. Vigorous fluctuations in moisture will seriously affect the stability of the blast furnace. The coke quenching car currently used in the coking plant takes a long time to quenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B39/04
Inventor 王建超沈宝承张志伟李燕飞姜兴张伟
Owner HEBEI IRON AND STEEL