Multi-aperture rate differentiated wind speed high turbulence v-shaped grate and quenching method

By designing the grate structure and cooling process differently, the problems of slow cooling rate and poor clinker quality in the existing technology have been solved, achieving efficient clinker cooling and energy saving, and improving the performance of the grate cooler and the quality of cement production.

CN122360141APending Publication Date: 2026-07-10CHENGDU DESIGN & RES INST OF BLDG MAT IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU DESIGN & RES INST OF BLDG MAT IND CO LTD
Filing Date
2026-05-26
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing grate structures and cooling processes suffer from slow cooling rates, low cooling air utilization, high duct resistance, and poor clinker quality. They also fail to achieve differentiated airflow control and matching, resulting in low heat exchange efficiency and affecting clinker strength and grindability.

Method used

A V-shaped grate with differentiated air velocity and high turbulence is adopted with multiple opening ratios. By differentiating the grate slot width, inclined air outlet angle and cooling zone width, a local pressure gradient and lateral shear force are formed, which promotes clinker particle tumbling and turbulence, and optimizes the cooling duct structure to improve airflow conveying efficiency.

Benefits of technology

It significantly improves cooling rate and clinker quality, reduces cooling power consumption, enhances heat exchange efficiency and clinker strength, and meets the needs of energy-saving and low-carbon development.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a multi-opening ratio differentiated wind speed high turbulence V-shaped grate plate and a quenching method. The multi-opening ratio differentiated wind speed high turbulence V-shaped grate plate comprises a grate plate box, the upper portion of the grate plate box is provided with a plurality of V-shaped grate plate strips, and a plurality of groups of differentiated grate slots and cooling air channels are formed on the grate plate. The width of the grate slots is differentiated in the range of 1mm-5mm, so that the opening ratios of the plurality of grate plates are differentiated and distributed in the range of 2%-8%, and the corresponding air outlet wind speed is 12.5m / s-50m / s. The inclined air outlet angles of the grate slots are multi-directionally differentiated and arranged in the range of 20°-60°. The widths of the cooling areas corresponding to the grate slots are differentiated in the range of 25mm-65mm, so that the dense layer turbulence and the near fluidization quenching heat exchange are realized. The application can greatly improve the heat exchange efficiency and enhance the quenching effect, i.e. the grate cooler quenching effect and process performance are improved, the cooling power consumption is reduced, and the quality of the clinker after quenching is improved.
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