Inner cylinder for preheater

A technology of preheater and inner cylinder, applied in the field of preheater inner cylinder, can solve the problems of reduced service life, damage to ceramic coupons, fast flow rate, etc., and achieve the effects of prolonging service life, strong tightness and reducing cost

Inactive Publication Date: 2016-03-02
南宁易速德机械设备有限公司
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AI Technical Summary

Problems solved by technology

[0002] At present, the cement preheater is a kind of equipment that uses the high-temperature exhaust gas of the rotary kiln to heat the cement raw materials. The inner cylinder of the existing preheater is mostly connected by ceramic hanging pieces. The gap sealing is not good, which will cause damage to the cylinder and reduce the service life, and the high-temperature exhaust gas of the rotary kiln contains a large amount of dust, and the flow rate is fast. Damage to the hanger

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Embodiment Construction

[0015] The following describes the present invention in further detail with reference to the drawings and specific embodiments, but does not limit the protection scope and application scope of the present invention:

[0016] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, an inner cylinder of a preheater includes a cylinder body 1, and a buffer layer 2 is installed on the inner wall of the cylinder body 1. The buffer layer 2 is made of high temperature and corrosion resistant materials, such as stainless steel and copper. The buffer layer 2 is provided with a hollow groove 8 penetrating vertically, and the function of the hollow groove 8 is to buffer the heat from reaching the cylinder 1, reduce the amount of corrosion of the cylinder 1, and prolong the service life. An arc-shaped ceramic hanger 3 is installed on the inner wall of the buffer layer 2. The ceramic hanger 3 is composed of a first wedge-shaped hanger 31 and a second wedge-shaped hanger 32, the first wedg...

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Abstract

The invention discloses an inner cylinder for a preheater. The inner cylinder comprises a cylinder body. A buffer layer is installed on the inner wall of the cylinder body. Arc-shaped ceramic hanging pieces are installed on the inner wall of the buffer layer. Each ceramic hanging piece is composed of a first wedge-shaped hanging plate and a second wedge-shaped hanging plate, wherein the first wedge-shaped hanging plate is in the shape of a big-end-down wedge; the second wedge-shaped hanging plate is in the shape of a big-end-down wedge; the wedge degree of the first wedge-shaped hanging plate is consistent with that of the second wedge-shaped hanging plate; the upper end of the first wedge-shaped hanging plate is provided with a first lug extending towards the bottom end; a first groove matched with the first lug is formed in the position, corresponding to the first lug, of the second wedge-shaped hanging plate; the first lug is matched with the first groove when the first wedge-shaped hanging plate is combined with the second wedge-shaped hanging plate. Second lugs extending upwards are arranged at the top ends of the ceramic hanging pieces. Second grooves which are open downwards and can contain the second lugs in a matched mode are formed in the bottom ends of the ceramic hanging pieces. According to the inner cylinder for the preheater, seamless connection between the ceramic hanging pieces is achieved, and the tightness is high.

Description

Technical field [0001] The invention relates to the technical field of cement production, in particular to an inner cylinder of a preheater. Background technique [0002] At present, the cement preheater is a kind of equipment that uses the high temperature exhaust gas of the rotary kiln to heat the cement raw materials. Most of the existing preheater inner cylinders are connected by ceramic coupons, but the existing ceramic coupons are connected The gap sealing is not good, causing damage to the cylinder, reducing the service life, and the high-temperature exhaust gas of the rotary kiln contains a lot of dust, and the flow rate is fast. The existing ceramic coupons are not sufficiently resistant to the high-temperature exhaust gas, which often causes ceramics. Damage to the hanging film. Summary of the invention [0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a preheater inner cylinder that is seamlessly connected, has st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D13/00
Inventor 聂军杨伊玲张梅珍王晓萍
Owner 南宁易速德机械设备有限公司
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