Method for treating high-temperature industrial waste gas with ice water cool-neutralization wash and absorption method
A technology of ice water cooling and high temperature industry, applied in the field of environmental engineering, can solve the problems of increased project investment, increased equipment cost, decreased cost performance, etc., and achieves the effects of low equipment cost, low operating cost, and small footprint.
Inactive Publication Date: 2011-01-26
上海环境保护有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, for the treatment of high-temperature industrial waste gas, the absorption method is effective for the removal of pollutants, but the absorption equipment must use high-temperature-resistant and corrosion-resistant materials
The increase in equipment cost, that is, the increase in engineering investment and the decrease in cost performance, limit the application of absorption method in high-temperature waste gas treatment
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0035]High-temperature fluorine-containing waste gas has a high temperature of the waste gas (250°C). If the temperature cannot be effectively lowered, the treatment equipment must use high-temperature-resistant materials (and resistant to hydrofluoric acid corrosion). In this way, the investment in equipment will increase, and the higher the temperature, the lower the absorption efficiency. . Therefore, cooling is the first step that must be taken.
[0036] The cooling unit is composed of a chiller 5, a cooling tower 6, a coil, a temperature controller and a spraying part. The high-temperature exhaust gas is sucked into the cooling neutralization tower 1 by the fan, and the gas passes through the defogging layer and packing layer in the cooling neutralization tower 1, and enters the spraying area from bottom to top, and the nozzles in the spraying area are sprayed from top to bottom for 3 % NaOH solution, contact and mix with the exhaust gas from bottom to top, the contact t...
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
Login to View More Abstract
The invention belongs to the field of environmental engineering, in particular to a method for treating high-temperature industrial waste gas with ice-water cooling---neutralization and scrub absorption. The specific steps of the method is as follows: the high-temperature industrial waste gas is absorbed into a cooling and neutralizing tower via a fan and is contacted and mixed with spraying liquid in the tower, the heat in the gas is transferred into the spraying liquid; the heat-absorbed spraying liquid is reused after being cooled, hence the waste gas is cooled via the circular flow of thespraying liquid, while at the same time the pH value of the waste gas is neutralized via the spraying liquid; the waste gas treated enters a scrub absorption tower, in which various waste gases are reacted with different scrub absorption liquids, thus removing the contaminant in the waste gas; after the scrub absorption, the waste gas up to standard is discharged, while products of the scrub absorption enter a reactive tank and perform chemical reaction with a chemical agent added into a drug dissolving groove; products generated in the reaction enter an effluent settling chamber with the supernatant fluid being reused and the sediment being dried by dehydrogenation. The method of the invention is characterized by low project investment, less floor area, simple techniques, stable and reliable treatment effect and low operation cost. Therefore, the method has broad application prospect.
Description
technical field [0001] The invention belongs to the field of environmental engineering, and in particular relates to a method for treating high-temperature industrial waste gas through ice water cooling, neutralization, washing and absorption. Background technique [0002] In recent years, with the development of industry, the pollution of high-temperature industrial waste gas has become more and more serious. Coal-fired, oil-fired boilers, various industrial furnaces, and the production of specific chemical products emit a large amount of SO 2 , NOx, HC, CO 2 、H 2 High-temperature industrial waste gas of various pollutants such as S. For example, in the glass fiber industry, due to the vast international market for its product glass fiber cloth, a large number of glass fiber factories have been built in my country's inland areas, such as Sichuan and Guizhou. The temperature of the melting furnace for glass fiber production is higher than 1000 degrees Celsius, and fluori...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/68B01D53/56B01D53/50F28D7/04
Inventor 曹国良邢绍文
Owner 上海环境保护有限公司