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Combustion treatment method for carbonyl nickel-containing waste gas

A treatment method and technology of nickel carbonyl, which are applied in the field of combustion treatment of waste gas containing nickel carbonyl, and can solve the problems such as blockage of nickel plating at the air inlet of an incinerator.

Active Publication Date: 2012-05-30
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the shortcomings of the above-mentioned prior art, and provide a method that can effectively solve the problem of nickel plating at the inlet of the incinerator during the incineration process. The waste gas is disinfected to ensure the normal production process and the combustion treatment method of carbonyl-containing waste gas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] When the outer diameter of the exhaust gas inlet pipe is 159mm, install a carbon steel casing with a length of 3000mm and an outer diameter of 219mm at the exhaust gas inlet pipe. After the fuel oil engine of the incinerator is ignited, the air compressor is turned on first, and then the exhaust gas intake valve is opened. The exhaust gas flow rate is 300m 3 / h, control the compressor flow rate to 300m 3 / h, after 7200 hours of continuous operation, the air inlet began to appear nickel-plated blockage.

Embodiment 2

[0013] When the outer diameter of the exhaust gas inlet pipe is 159mm, install a carbon steel casing with a length of 3000mm and an outer diameter of 219mm at the exhaust gas inlet pipe. After the fuel oil engine of the incinerator is ignited, the air compressor is turned on first, and then the exhaust gas intake valve is opened. The exhaust gas flow rate is 300m 3 / h, control the compressor flow rate to 300m 3 / h, after 9600 hours of continuous operation, the air inlet began to appear nickel-plated blockage.

Embodiment 3

[0015] When the outer diameter of the exhaust gas inlet pipe is 159mm, install a carbon steel casing with a length of 3000mm and an outer diameter of 219mm at the exhaust gas inlet pipe. After the fuel oil engine of the incinerator is ignited, the air compressor is turned on first, and then the exhaust gas intake valve is opened. The exhaust gas flow rate is 300m 3 / h, control the compressor flow to 600m 3 / h, after 7200 hours of continuous operation, the air inlet began to appear nickel-plated blockage.

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Abstract

The invention discloses a combustion treatment method for carbonyl nickel-containing waste gas and relates to improvement of a combustion treatment method for the carbonyl nickel-containing waste gas generated in the carbonyl metallurgical production process. The method is characterized in that: by utilizing the Venturi principle of fluid for the combustion treatment of the carbonyl nickel-containing waste gas, a sleeve is arranged on an air inlet pipe of an incinerator; and a compressed air inlet pipe is arranged at the front end of the sleeve; therefore, the temperature of an exhaust pipe is reduced, and the distribution of the waste gas and air is realized. The method comprises the following steps of: opening a compressed air valve to introduce air into the sleeve, and opening a carbonyl nickel-containing waste gas inlet valve to perform mixed flow distribution combustion. By utilizing the Venturi principle of fluid, mixed flow distribution is performed before the waste gas is combusted, a negative pressure area is formed at the waste gas inlet, the rate for decomposing the carbonyl nickel in the waste gas at the air inlet to form nickel plating is delayed and the continuous treatment time of the waste gas is prolonged; therefore, the process of combusting the waste gas is continuously and stably performed, and the aim of timely disinfection is fulfilled.

Description

technical field [0001] The invention relates to a combustion treatment method of nickel carbonyl-containing waste gas, which relates to an improvement of a combustion treatment method of carbonyl-containing nickel waste gas produced in carbonylation metallurgical production process. Background technique [0002] In the carbonylation metallurgical production process, waste gas containing a small amount of carbonyls will be produced, and these waste gases must be disinfected before being discharged into the atmosphere. At present, in the carbonylation metallurgical production process, the waste gas is input into the incinerator for incineration treatment. During the incineration process, the nickel carbonyl in the waste gas will be decomposed at the inlet of the incinerator to form nickel plating, and the intake air will gradually be incinerated. The mouth is blocked, so that the waste gas incineration process cannot be carried out normally, and hinders the normal organization...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/06
Inventor 王芳镇肖冬明刘军位李朝平寇宗质刘俊
Owner JINCHUAN GROUP LIMITED
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