High-activity lime rotary kiln preheating recovery device and using method thereof

By designing a highly reactive white ash rotary kiln preheating and recycling device, and using the treatment mechanism to circulate and clean the flue gas, the waste and ash accumulation problems caused by direct flue gas emissions in the prior art are solved, and efficient preheating and resource utilization are achieved.

CN119713828AInactive Publication Date: 2025-03-28SHIZUISHAN HUINONG JUYE SMELTING CO LTD
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Patent Information

Application Number
CN202510002004.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, the rotary kiln preheater directly discharges flue gas, resulting in waste of resources, and it is easy to generate ash when using waste heat. If the waste heat is processed by the dust removal equipment and then utilized, a large amount of heat will be lost.

Method used

A highly active white ash rotary kiln preheating and recycling device is designed, including a preheater body, feed end, discharge pipe and preheating chamber, and a processing mechanism is set up to circulate and clean the flue gas, and the preheating efficiency and resource utilization are improved through multiple recycling and preheating.

Benefits of technology

Through multiple recycling and preheating, the preheating efficiency is improved, resource utilization is increased, resource waste is reduced, and dust in the flue gas is isolated during the recycling process to prevent dust from affecting the efficiency of the preheater.

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Abstract

The invention provides a preheating recovery device for a high-activity lime rotary kiln and a using method thereof, and belongs to the technical field of preheating recovery devices. Comprising a preheater body, a feeding end, a discharging pipe and a preheating chamber, the feeding end and the discharging pipe are arranged on the preheater body, and the preheating chamber is located below the feeding end and communicated with a rotary kiln through the discharging pipe; the top end of the preheating chamber is fixedly connected with a first smoke inlet pipe, the outer end of the first smoke inlet pipe is fixedly connected with a first annular pipe and a second annular pipe, the treatment mechanism is used for recycling smoke exhausted from the preheating chamber and cleaning the smoke in the recycling process, and a treatment assembly is connected with the first annular pipe and the second annular pipe. Through the arrangement of the treatment mechanism, high-temperature flue gas can be introduced into the pre-heating chamber again to preheat stones; and meanwhile, dust in the flue gas can be isolated in the recovery process, and the problem that the efficiency of the preheater is affected due to excessive dust content in the flue gas is solved.
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