Explosion-proof control apparatus of gas purification equipment
A technology of gas purification equipment and control device, which is applied in chemical instruments and methods, instruments, and dispersed particle separation, etc., can solve the problems of explosion and high danger of ammonia gas, and achieve the effect of easy detection and early warning
Pending Publication Date: 2020-05-08
天津奥利达环保设备有限公司
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[0003] Existing denitrification systems usually use liquid ammonia as a catalyst to denitrify the combustion flue gas in the SCR reaction system, but ammonia gas is highly dangerous, and the leaked ammonia gas will explode when it mixes with air and touches an open flame. However, there is still the risk of explosion accidents caused by construction near the surface of liquid ammonia cylinders
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0019] refer to Figure 1-3 , an explosion-proof control device for gas purification equipment, including a liquid ammonia cylinder 1, a reaction device and an explosion-proof device, the reaction device includes a steam generator 2, an SCR reaction system 3 and a background control system 4, and the explosion-proof device includes an explosion-proof bucket 5 and a sealing cover 6 And the open flame detector 7, the explosion-proof barrel 5 is a hollow cylinder, the inner wall of the explosion-proof barrel 5 is fixedly connected with a stop rod 8, and the surface of the stop rod 8 is slidably connected with a liquid ammonia steel cylinder 1, and the surface of the liqu...
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The invention belongs to the technical field of gas purification, and particularly relates to an explosion-proof control apparatus of gas purification equipment. The apparatus comprises a liquid ammonia steel cylinder, a reaction device and an explosion-proof device, the reaction device comprises a steam generator, an SCR reaction system and a background control system, and the explosion-proof device comprises an explosion-proof barrel, a sealing cover and an open fire detector. The apparatus is used for an explosion-proof control system for a steel mill sintering machine flue gas denitrationsystem. The explosion-proof barrel is slidably sleeved on the surface of the liquid ammonia steel cylinder, and the open fire detector is fixed on the inner side wall of the explosion-proof barrel tomonitor a gap between the explosion-proof barrel and the liquid ammonia steel cylinder, so when high temperature or open fire enters the gap between the explosion-proof barrel and the liquid ammonia steel cylinder during dangerous operations such as electric welding of the surface of the explosion-proof barrel, the open fire detector gives an alarm and reacts with the SCR reaction system to respond, thereby the explosion-proof control system for the steel mill sintering machine flue gas denitration system has the characteristics of protecting the surface of liquid ammonia storage equipment andfacilitating detection and early warning.
Description
technical field [0001] The invention relates to the technical field of gas purification, in particular to an explosion-proof control device for gas purification equipment. Background technique [0002] The process of removing nitrogen oxides from combustion flue gas and the importance of preventing environmental pollution have been sharply raised as a worldwide problem; the mainstream processes in the world are divided into: SCR and SNCR; these two processes except Since SCR uses a catalyst, the reaction temperature is lower than that of SNCR, and there is not much difference in other things. However, from the perspective of construction cost and operating cost, the investment of SCR is at least several times that of SNCR, or even more than 10 times; [0003] Existing denitrification systems usually use liquid ammonia as a catalyst to denitrify the combustion flue gas in the SCR reaction system, but ammonia gas is highly dangerous, and the leaked ammonia gas will explode whe...
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IPC IPC(8): B01D53/56B01D53/86G08B21/12
CPCB01D53/8625G08B21/12
Inventor 李永胜刘玉鹏荀浩亮
Owner 天津奥利达环保设备有限公司