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Combined type dry quenching device and technology thereof

A coke dry quenching and combined technology, applied in coke ovens, petroleum industry, coke cooling, etc., can solve the problems of coke smoke and dust leakage, environmental pollution, large investment, etc., and achieve high flexibility and operability in adapting to production capacity Strong, investment-reduced effect

Inactive Publication Date: 2013-02-20
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned existing CDQ equipment mainly adopts a single large-scale coke quenching tank, which needs to be equipped with complex equipment such as a lifting frame, and the investment is relatively large; more importantly, smoke and dust are emitted during the process of coke being connected to the coke tank and entering the coke quenching tank. A large amount of carbon dioxide has caused environmental pollution

Method used

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  • Combined type dry quenching device and technology thereof
  • Combined type dry quenching device and technology thereof
  • Combined type dry quenching device and technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0028] The main body of the coke quenching structure of the combined CDQ device of the present invention is mainly composed of two or more coke quenching tanks, corresponding coke quenching tank seats, and connecting pipes.

[0029] Among them, the quenching tank seat is composed of a fixed quenching tank base 1 corresponding to the upper and lower tank mouths of the quenching tank and a coke quenching tank cover 2 that can move up and down. The tank bottom port connected to the quenching tank is sealed accordingly; the coke quenching tank seat cover 2 that can move up and down is sealed correspondingly to the tank top port connected to the coke quenching tank, so as to avoid leakage of the low-temperature heat exchange medium input during the coke quenching process. It can move up and down, which provides convenience for the coke quenching tank 3 to be placed on the quenching tank seat after coke receiving and to be withdrawn from the coke quenching tank seat after coke quench...

Embodiment approach 2

[0034] The present invention implements a coke quenching process of a combined dry coke quenching device using nitrogen or reducing gas as the heat exchange medium, and the reducing gas is H 2 , CO and CH 4 , the sum of the volume content of the three is greater than 75%, this gas can reduce the sulfur content in the coke, so that the quality of the coke can be improved, such as coke oven gas. The process is to put at least two quenching tanks 3 into high-temperature coke at 950-1050°C pushed out from the carbonization chamber, move the quenching tank cover 2 that can move up and down, and place it on at least two coke quenching tanks with brackets. On the base 1 of the above quenching tank, cover the cover 2 of the quenching tank base, and then send nitrogen or reducing gas low-temperature heat exchange medium into at least two connecting quenching tanks filled with high-temperature coke at 950-1050 °C In step 3, the temperature of the coke is reduced to 200-250°C by adjusti...

Embodiment approach 3

[0036] The specific process steps for cooling the high-temperature coke in the coke quenching tank 3 are introduced below: before the coke quenching work is started, all valves are closed, and the coke quenching tank 3 is placed on the coke quenching tank seat in sequence (according to a certain time interval) when starting . Use a manipulator or other mechanical methods to place the 1# quenching tank in the fixed quenching tank base 1 and the coke quenching tank cover 2 that can move up and down. After installing and connecting the connecting pipes, turn on T2, T1 and A1, B1 valves. At this time, the low-temperature heat exchange medium flows through the 1# quenching tank and high-temperature coke for heat exchange, and then flows through T2 to the dust collector and waste heat boiler equipment; After the quenching tank, open valves B2 and C1 in turn and close B1. At this time, the heat carrier flowing from 1# to the quenching tank flows through 2# to the quenching tank to ex...

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Abstract

The invention relates to a combine type dry quenching device and a technology thereof. The device is formed by connecting two or more than two connecting coke quenching pots and corresponding connecting coke quenching pot seats by a connecting pipe, wherein the two or more than two connecting coke quenching pots are arranged in parallel; the connecting coke quenching pot bases are formed by a fixed connecting coke quenching pot seat base and a connecting coke quenching seat cover which can move up and down; the connecting pipe comprises a lower temperature medium main pipe, an air inlet pipe, an air outlet pipe, a groove seat connecting pipe, a N2 gas main pipe, a stable cleaning pipe and a high temperature medium main pipe; the technology thereof is as follows: the low temperature medium using nitrogen or reducibility gas as heat exchange is input into the high temperature coke with 950-1050 DEG C of two or more than two connecting coke quenching pots by the main pipe; the value of the connecting pipe is regulated for exchanging heat with the high temperature in the connecting coke quenching pots; the temperature of the high temperature coke is reduced to 200-500 DEG C, and simultaneously the low temperature medium is heated till reach 800-950 DEG C and output by the air outlet pipe. The device and the technology omit the complex mechanical equipment, eliminate the pollution of smoke escaping and carbon dioxide discharging on the environment in the coke quenching process and realize the purpose of energy conservation and emission reduction.

Description

technical field [0001] The invention relates to a dry coke quenching device and its technology, in particular to a coke dry quenching device and its technology including a connecting pipe, a valve, a coke quenching tank seat, a coke quenching tank and a tank car. technical background [0002] CDQ refers to the circulation of gas heat carrier in the closed CDQ furnace equipped with high-temperature coke (about 1050°C), gradually displacing the heat of high-temperature coke and cooling it down to about 200°C, and at the same time, the gas is heat-carried The process of heating the body to 800-950°C. In the 1930s, CDQ devices and processes such as multi-chamber, tank, tank and fire tube were developed. [0003] In 2002, Nippon Steel Corporation International applied for a patent for a "CDQ method and device", which was published in 2005 with the publication number CN1694943A. The device and method are composed of a cooling chamber and a pre-chamber above it to form a coke que...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B39/02
Inventor 张永发杨力梁言王丽秀
Owner TAIYUAN UNIV OF TECH