Cement kiln bypass ventilation system

CN222773804UActive Publication Date: 2025-04-18SHAANXI BAINENG IND TECH CO LTD
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Patent Information

Application Number
CN202421384957.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-17
Publication Date
2025-04-18
Estimated Expiration
2034-06-17

AI Technical Summary

Technical Problem

When treating urban domestic waste in cement kilns, the low-melting point compounds produced will adhere to the crust, affecting the ventilation and normal production in the kiln, and frequent cleaning of crust increases the labor intensity and unsafe factors of employees.

Method used

A cement kiln bypass air discharge system is provided, including bypass air discharge duct, quenching mechanism, high-temperature bag dust collector, steady-flow weighing bin and pneumatic conveying mechanism. The flue gas from the kiln tail smoke chamber is introduced into the quench mechanism through the bypass air discharge duct. After the quenching mechanism is cooled, the flue gas enters the high-temperature bag dust collector. The dust collector collects dust into the steady-flow weighing bin, and the dust is transported to the water washing system for processing by pneumatic force.

Benefits of technology

It effectively reduces the crust and blockage caused by harmful elements on the cement kiln, reduces equipment investment, and reduces the generation of dioxins through comprehensive utilization of heat sources, so as to achieve the purpose of energy saving and consumption reduction and stable operation of the kiln sewage thermal power generation mechanism.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN222773804U_ABST
Patent Text Reader

Abstract

The utility model discloses a bypass ventilation system of a cement kiln. An exhaust hole is formed in the top of the cement kiln tail smoke chamber; the two ends of the bypass exhaust pipeline are communicated with the exhaust hole and the first input end of the quenching mechanism respectively; the output end of the quenching mechanism is communicated with the high-temperature bag dust collector; the gas output end of the high-temperature bag dust collector is communicated with the kiln tail waste heat power generation mechanism, and the output ends of a plurality of ash hoppers of the high-temperature bag dust collector are communicated with a feed port of the steady-flow weighing bin; a discharge port of the steady flow weighing bin is communicated with the input end of the pneumatic conveying mechanism, and the output end of the pneumatic conveying mechanism is communicated with the washing system; a plurality of weighing sensors are arranged on the outer wall of the steady flow weighing bin. Therefore, the bypass ventilation system of the cement kiln is simple in structure and stable in operation, crust and blockage caused by harmful elements when the cement kiln cooperatively treats the municipal solid waste can be effectively reduced, equipment investment can be reduced, and a heat source can be comprehensively utilized.
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