A cyclone preheater for cement precalcining kiln
The technology of cyclone preheater and precalciner kiln is applied in the field of cement production, which can solve the problems of discontinuous feeding of preheated raw meal powder, poor dispersion of preheated raw meal powder, poor heat exchange effect, etc., and achieve heat exchange effect. Good, improve the uniformity, prevent the effect of blocking the feeding pipe
Active Publication Date: 2022-04-22
SINOMA OVERSEAS DEVELOPMENT CO LTD
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Problems solved by technology
[0005] Aiming at the defects in the prior art, the present invention provides a cyclone preheater for cement precalcining kiln to solve the discontinuous and uneven feeding of preheated raw meal powder, resulting in the dispersion of preheated raw meal powder entering the ascending pipeline. Poor, poor heat transfer effect
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[0024] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.
[0025] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.
[0026] Such as Figure 1-Figure 4 As shown, an embodiment of the present invention provides a cyclone preheater for a cement precalcining kiln, comprising a cyclone 10, an ascending pipe 20 tangentially connected to the top of the cyclone 10, and an air outlet at the upper end of the cyclone 10 30. The feeding opening 40 provided at the lower end of the cyclone 10 , the feedi...
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The invention discloses a cyclone preheater for a cement precalcining kiln, which comprises a cyclone, an ascending pipe tangentially connected to the upper part of the cyclone, an air outlet arranged at the upper end of the cyclone, and a The feeding port at the lower end, the feeding pipe connected to the ascending pipeline, and the guide impeller, the guide impeller includes an impeller shaft and a number of scrapers arranged outside the impeller shaft, and the feeding pipe is connected to The port of the ascending pipe is set as a flat mouth, the impeller shaft extends transversely and is rotatably installed in the flat mouth, and the outer contour of the scraper is respectively tangent to the upper side wall and the lower side wall of the flat mouth. The invention solves the problem of discontinuous and uneven feeding of the preheated raw meal powder, resulting in poor dispersion and poor heat exchange effect of the preheated raw meal powder entering the ascending pipeline.
Description
technical field [0001] The invention relates to the technical field of cement production, in particular to a cyclone preheater for a cement precalcining kiln. Background technique [0002] During the cement production process, the raw material needs to enter the preheater system before entering the kiln. The purpose is to exchange heat with the hot flue gas from the rotary kiln and calciner, absorb a large amount of heat energy contained in the flue gas, and improve the raw material entering the kiln. decomposition rate. [0003] The preheater system includes a multi-stage cyclone preheater. The cyclone preheater makes full use of the hot gas discharged from the rotary kiln and calciner, and realizes preheating and partial heating through the heat exchange between gas and solid and the separation of the cyclone. Breakdown function. Raw meal powder is fed from the ascending pipeline of the second-stage cyclone, exchanges heat with the hot gas from the second stage, and ente...
Claims
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IPC IPC(8): F27D13/00F27D17/00
CPCF27D13/00F27D17/004
Inventor 高超周申燕唐薇薇衣朝华王硕赵海山温雅静
Owner SINOMA OVERSEAS DEVELOPMENT CO LTD