A rotary kiln waste heat comprehensive utilization system

Abstract

The invention relates to a comprehensive utilization system for waste heat of a rotary kiln, which includes a plurality of support piers and a heat collection mechanism connected to a heat load; the heat collection mechanism includes a support that is rotatably supported between two adjacent support piers The shaft also includes two heat collecting plates hinged on the supporting shaft; the heat collecting plate includes a heated arc plate covered on the rotary kiln shell, and a control arc plate integrated with the heated arc plate; the control arc plate is set There are multiple gaps, and the two heat collecting plates on the same support shaft are arranged to cross each other; the heat collecting mechanism is connected with a balance device; the heat absorbing tube for absorbing heat is arranged on the heat receiving arc plate; The power unit is installed between the plates. The invention sets two heat collecting plates hinged on the support shaft, and controls the opening and closing degree of the heat collecting plates through the power device, so that the heat collection capacity of the heat absorbing pipe can be changed according to the season, and the heat dissipation performance of the rotary kiln can be changed. Effect.

Description

technical field [0001] The invention relates to the technical field of waste heat utilization of a rotary kiln, in particular to a comprehensive utilization system of waste heat of a rotary kiln. Background technique [0002] Rotary kiln is an important equipment in cement plant, used for calcining cement clinker. A rotary kiln is generally composed of a cylinder, a supporting device, a supporting device with retaining wheels, a transmission device, a movable kiln head, a kiln tail sealing device, a coal injection pipe device, a heating device and other components. During cement production, the cement raw material is sent into the kiln through the coal injection pipe device, the heating device heats the temperature in the kiln to above 1000 degrees, and the power transmission device drives the cylinder to rotate so that the raw material in the kiln is gradually calcined into clinker . During the calcination process of raw materials, the outer wall of the rotary kiln cylind...

AI Technical Summary

Problems solved by technology

[0005] Although this waste heat recovery device on the outer wall of the cement rotary kiln can recover and utilize the waste heat of the rotary kiln, the relative position of the heat collector and the rotary kiln is fixed, and the waste heat recovery capacity of the heat collector to the rotary kiln in winter and summer is almost Similarly, the amount of waste heat recovery cannot be adjusted according to seasonal heat load changes, and the heat collector is covered on the outer wall of the rotary kiln, which usually has a great impact on the heat dissipation capacity of the rotary kiln in summer

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