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Cooling method and system for furnace gas cooler of waste sulfuric acid cracking furnace

A technology for coolers and cracking furnaces, applied in the direction of combustion methods, incinerators, combustion types, etc., can solve problems affecting production efficiency and long cooling time of cooling devices, so as to improve production efficiency, reduce maintenance time, and reduce production cost effect

Pending Publication Date: 2021-11-16
内蒙古鄂尔多斯电力冶金集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the cooling time of the cooling device in the prior art is too long, which affects the production efficiency, the present invention provides a cooling method for the furnace gas cooler of the waste sulfuric acid cracking furnace

Method used

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  • Cooling method and system for furnace gas cooler of waste sulfuric acid cracking furnace
  • Cooling method and system for furnace gas cooler of waste sulfuric acid cracking furnace
  • Cooling method and system for furnace gas cooler of waste sulfuric acid cracking furnace

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Embodiment 1

[0029] An implementation of this embodiment is as figure 1 shown.

[0030] A method for cooling the furnace gas cooler of a waste sulfuric acid cracking furnace, characterized in that it includes the operating state and the maintenance state,

[0031] Under the operation state, the furnace gas discharged from the cracking furnace 1 passes through the furnace gas cooler 2 into the furnace gas recovery module 8, and the air blower 3 sends air into the furnace gas cooler 2 and makes the air pass through the furnace gas cooler 2 Pass into cracking furnace 1, and described furnace gas cooler 2 heats air by furnace gas;

[0032] In the maintenance state, the air passes through the furnace gas cooler 2 into the furnace gas recovery module 8 , and the furnace gas from the cracking furnace 1 passes into the furnace gas recovery module 8 .

[0033] Principle description:

[0034] When in the running state, the cracking furnace 1 performs pyrolysis on the basis of the waste acid, fuel...

Embodiment 2

[0041] On the basis of Embodiment 1, in the operating state, the furnace gas discharged from the furnace gas cooler 2 passes through the air preheater and then passes into the furnace gas recovery module 8, and the gas discharged from the furnace gas cooler 2 Air passes through the cracking furnace 1 after passing through the air preheater;

[0042] In the maintenance state, the air discharged from the furnace gas cooler 2 passes through the air preheater and then passes into the furnace gas recovery module 8 .

[0043] The temperature of the furnace gas is further cooled by the air preheater, and the air is further heated, thereby improving the efficiency and effect of recovery and utilization of the waste heat of the furnace gas.

[0044] Preferably, the number of the air preheater is at least one, and in this embodiment, it is preferably two.

Embodiment 3

[0046] Such as figure 1 As shown, a waste sulfuric acid cracking furnace furnace gas cooler cooling system is characterized in that it includes a cracking furnace 1, a furnace gas cooler 2, an air blower 3, a first valve 6, and a furnace gas recovery module 8, and the cracking furnace 1 is provided with a natural gas inlet 101, a waste acid inlet 102, a furnace air inlet 103, and a furnace gas outlet 104, and the furnace gas cooler 2 is provided with a furnace gas cooler furnace gas inlet 201, a furnace gas cooler furnace gas outlet 202, Furnace gas cooler air inlet 203, furnace gas cooler air outlet 204,

[0047] The furnace inlet air inlet 103 and the furnace gas cooler air outlet 204 are connected, and the inlet of the furnace gas recovery module 8 is connected to the furnace inlet air inlet 103 and the furnace gas cooler air outlet 204 through the first valve 6 The pipelines between are communicated; the furnace gas outlet 104 is communicated with the furnace gas inlet 20...

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Abstract

The invention provides a cooling method for a furnace gas cooler of a waste sulfuric acid cracking furnace. The cooling method involves an operation state and a maintenance state, in the operation state, furnace gas discharged by a cracking furnace is introduced into a furnace gas recovery module through the furnace gas cooler, an air fan feeds air into the furnace gas cooler and introduces the air into the cracking furnace through the furnace gas cooler, and the furnace gas cooler is used for heating the air through the furnace gas; and in a maintenance state, the air is introduced into the furnace gas recovery module through the furnace gas cooler, and the furnace gas of the cracking furnace is introduced into the furnace gas recovery module. The invention further provides a cooling system for the furnace gas cooler of the waste sulfuric acid cracking furnace. According to the cooling method and system, the furnace gas cooler is not influenced by the temperature of the furnace gas during maintenance, the temperature can be reduced to a maintainable temperature in a short time, the time required for maintenance is reduced, and the production efficiency is improved; and meanwhile, furnace gas waste heat can be recycled in the operation state, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of waste acid recovery, and relates to the cooling of a furnace gas cooler, in particular to a cooling method and system for a furnace gas cooler of a waste sulfuric acid cracking furnace. Background technique [0002] Document CN110002411A discloses a waste acid regeneration equipment and process, including incinerators, filters, primary reactors, primary condensers, secondary reactors, secondary condensers and activated carbon reactors connected in sequence through pipelines , wherein, the incinerator is used to pyrolyze the raw materials, and there is also a light tube heat exchanger near the gas outlet inside the incinerator, which cools down the high-temperature gas after burning in the incinerator; the filter discharges the gas from the incinerator The process gas is filtered; then it reacts and condenses into sulfuric acid in the primary reactor, primary condenser, secondary reactor, and secondary con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/027F23G5/44F23G5/46F23G5/50
CPCF23G5/027F23G5/44F23G5/46F23G5/50
Inventor 赵建庭杭宇金硕席儒杰王蓉
Owner 内蒙古鄂尔多斯电力冶金集团股份有限公司
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