High-temperature flue gas cleaning system

A high-temperature flue gas and purification system technology, applied in the direction of inert gas generation, chemical instruments and methods, and separation of dispersed particles, can solve problems such as tar generation, filter element pollution, and difficulty in ash discharge

A high-temperature flue gas and purification system technology, applied in the direction of inert gas generation, chemical instruments and methods, and separation of dispersed particles, can solve problems such as tar generation, filter element pollution, and difficulty in ash discharge

CN102631820AInactive Publication Date: 2012-08-15CHENGDU INTERMENT TECH
3 Cites 27 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature flue gas cleaning system
  • High-temperature flue gas cleaning system
  • High-temperature flue gas cleaning system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Such as figure 1 The shown high-temperature flue gas purification system system for the purification of ferroalloy submerged arc furnace gas includes a filter system, a backblowing system and an ash discharge system. The filter system includes a high-temperature flue gas access pipe 1a, and the high-temperature flue gas The two filters 1c connected to the gas inlet pipe 1a and the fan 1e that drives the gas to be purified through the filter 1c are arranged in parallel with each other, and they are respectively connected with the back blowing system and the ash discharge system. There is also a pre-dust removal device 1b between the flue gas inlet pipe 1a and the two filters 1c, and the pre-dust removal device 1b uses a gravity dust collector; the back blowing system uses protective gas, and the back blowing system is equipped with a protective gas heating device 2b; when the high-temperature flue gas purification system is turned on, the back blowing system is used as a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-temperature flue gas cleaning system which is moisture condensation resistant, and tar film pasting resistant. The system comprises a filtering system, a blowback system and an ash discharging system, wherein the filtering system comprises a high-temperature flue gas connecting pipe, at least one part of a filter connected with the high-temperature flue gas connecting pipe and a fan driving the gas to be cleaned to pass through the filter, the filter is respectively connected with the blowback system and the ash discharging system, the blowback system takes protective gas as a blowback medium, and the blowback system is internally provided with a protective gas heater; and when the high-temperature flue gas cleaning system is turned on, the blowback system is taken as a filter core moisture condensation-resistant system for preheating a filter core in the filter in a blowing way, and when the high-temperature flue gas cleaning system is turned off, the blowback system is further taken as a protective gas displacement system for displacing the original gas in the filter in a blowing way. In the stage that high-temperature flue gas cleaning system is turned on, the filter core is preheated by the protective gas, so that the phenomena of moisture condensation and tar film pasting on the surface of the filter core can be avoided.

Description

technical field [0001] The invention relates to a gas purification facility, in particular to a high-temperature flue gas purification system for purifying high-temperature flue gas generated in the metallurgical industry. Background technique [0002] Pyrometallurgy often produces a large amount of high-temperature flue gas, and the treatment of these high-temperature flue gases has great significance for energy conservation and environmental protection. Taking the production of ferroalloys as an example, my country currently mainly produces ferroalloys with carbon reduction ores through submerged arc furnaces. The production varieties include ferrosilicon, silicon-calcium alloys, industrial silicon, high-carbon ferromanganese, high-iron chromium, silicon-chromium alloys, etc.; among them, Furnace material is submerged arc reduction smelting by means of resistance arc heat generated by electric arc and current passing through. During smelting, a large amount of combustible g...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
15 Aug 2012
Publication
CN102631820A
IPC
B01D50/00; B01D46/00; B01D46/42; B01J19/14
Inventors
高麟; 贺跃辉