Optical fiber preform sintering waste gas treatment method
A technology for optical fiber preform and waste gas treatment, which is applied in the field of optical fiber production and manufacturing, can solve the problems of wide structural layout, inability to remove pollutants, and large floor area, etc., and achieve the effect of high absorption efficiency
Pending Publication Date: 2021-11-09
JIANGSU ETERN OPTICAL FIBER TECH CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Large area, complex operation, wide structure layout, complex on-site installation
The system is prone to blockage
It cannot remove a large amount of pollutants (whether it is gas or dust), which greatly increases the load of the packed alkali washing tower (the packing is relatively easy to block), resulting in high operating costs
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 Construction
[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and Simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes on...
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 relates to an optical fiber preform sintering waste gas treatment method which comprises the following steps that: S10, gas enters a Venturi column scrubber, gas pollutants are in contact with sprayed liquid in a Venturi throat pipe, and mass transfer occurs; S20, the gas pollutants are absorbed into the sprayed liquid; S30, the primarily purified gas enters a packed column scrubber to be absorbed and neutralized again by circulating aqueous alkali, and the sintering waste gas reaches the allowable emission standard; and S40, a high-efficiency packing is added into the packed column scrubber, wherein the adding amount of the 30% aqueous alkali is controlled by ORP (Oxidation Reduction Potential). The absorption efficiency is high, two-stage absorption by a Venturi-packing integrated tower is adopted, and it is ensured that tail gas emission is lower than the strictest national emission standard. The method is beneficial to safety and health. Due to the siphon effect of the venturi, stable negative pressure can be formed in an upstream air pipe (under the condition that a draught fan breaks down), a small amount of air draft is kept, and harmful gas in the air pipe cannot escape to the surrounding space (a workshop).
Description
technical field [0001] The application belongs to the field of optical fiber production and manufacturing, and in particular relates to a method for treating waste gas from sintering optical fiber preform rods. Background technique [0002] The optical fiber prefabricated rod industry has been mainly adopting the process mode of "chlorine spraying alkali spray / dynamic wave scrubber + absorption tower" for the treatment of waste gas after sintering. In the actual operation process, there are many problems. For example, it occupies a large area, has low absorption efficiency, is easy to block, and is not conducive to safety and personnel health. Chlorine-containing waste gas and air from sintering, gas cabinets, etc. are collected through air ducts and discharged to the sintering waste gas treatment system. Normally, the pollutant in the gas is chlorine. The sintering waste gas treatment process is mainly the process of "spraying alkali to wash chlorine / power wave scrubber +...
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 IPC IPC(8): B01D53/18B01D53/14
CPCB01D53/18B01D53/1406B01D53/1412
Inventor 刘勇王龙飞李凡眭立洪施国旗
Owner JIANGSU ETERN OPTICAL FIBER TECH CO LTD