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Cement kiln coal-injection pipe device

A technology of coal injection pipe and cement kiln, which is applied in the direction of combustion method, block/powder supply/distribution, combustion equipment, etc., can solve the problems of unguaranteed service life, inability to satisfy people, damage to ceramic pipes, etc., to ensure stability The effect of stability, preventing shaking, and improving the service life

Inactive Publication Date: 2019-11-08
山东岩马湖投资置业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patents have the following disadvantages: although ceramic tubes are added, the sundries at the bottom are easy to damage the ceramic tubes, so the service life cannot be guaranteed, which wastes resources and cannot meet people's requirements

Method used

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  • Cement kiln coal-injection pipe device
  • Cement kiln coal-injection pipe device
  • Cement kiln coal-injection pipe device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to Figure 1-3 , a coal injection pipe device for a cement kiln, comprising a heat-resistant pipe 2 and an outer pipe 5, the outer wall of the heat-resistant pipe 2 is coated with a refractory coating 1, and one side of the outer wall of the outer pipe 5 is provided with a socket 4, and is resistant to The heat pipe 2 is plugged into the socket 4, a plurality of fixing rods 6 are welded on the inner wall of the outer tube 5, and a fixing device 7 is arranged on the fixing rod 6, and a plurality of screw holes 11 are opened on one side of the outer wall of the outer tube 5 , and the threaded port 11 is internally threaded with a threaded rod 8, one side of the outer tube 5 has a fixed port 13, and the fixed port 13 is inserted with a feed pipe 10, and one end of the feed pipe 10 is inserted into the heat-resistant tube 2 within.

[0026] The bottom outer wall of the heat-resistant pipe 2 is bonded with an arc-shaped patch 3, and the length of the arc-shaped patch ...

Embodiment 2

[0030] refer to Figure 4 , a cement kiln coal injection pipe device, the main difference between this embodiment and embodiment 1 is that in this embodiment, it also includes a plurality of adsorption screens 20 to filter impurities, and the adsorption screens 20 are all fixed on adjacent One side of the two connecting blocks 16.

[0031] The working principle of this embodiment is to absorb impurities entering from the socket 4 through the adsorption net plate 20 to prevent them from affecting the normal operation of other components.

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PUM

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Abstract

The invention discloses a cement kiln coal-injection pipe device. The cement kiln coal-injection pipe device comprises a heat-resisting pipe and an outer pipe; the outer wall of the heat-resisting pipe is coated with a fireproof coating, a splicing opening is formed in the outer wall of one side of the outer pipe, the heat-resisting pipe is spliced into the splicing opening, multiple fixing rods are welded to the inner wall of the outer pipe, fixing devices are arranged on the fixing rods, multiple thread openings are formed in the outer wall of one side of the outer pipe, thread rods are in threaded connection into the thread openings, a fixing opening is formed in one side of the outer pipe, and a feeding pipe is spliced into the fixing opening. The device can be matched with the threadopenings, in the rotating process, sliding rings are driven to slide on the fixing rods, the heat-resisting pipe is driven to move, when the tail end is about to be damaged within certain time, the heat-resisting pipe gradually shrinks into the outer pipe, protection is achieved, in the gradual shrinking process, the tail end is protected, the service life of the device is prolonged, impurities entering from the splicing opening are absorbed, and the impurities are prevented from entering to affect normal work of other parts.

Description

technical field [0001] The invention relates to the technical field of coal injection pipes, in particular to a coal injection pipe device for a cement kiln. Background technique [0002] Cement is widely used in our engineering construction, especially in the construction industry. The end of the general cement kiln coal injection pipe is always scoured by the airflow in the kiln, especially the lower part is more severely scoured and needs to be replaced frequently. [0003] After searching, the authorized publication number is the patent of CN201462881U, which discloses a cement kiln coal injection pipe which is socketed with a high temperature and wear resistant device at the end of the refractory layer. The outer wall of the heat-resistant steel pipe of the cement kiln coal injection pipe is poured with a refractory layer. The end of the refractory layer is covered with a high-temperature-resistant and wear-resistant ceramic tube to protect the castable of the end refr...

Claims

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Application Information

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IPC IPC(8): F23K3/00
CPCF23K3/00
Inventor 张钟满建莉陈开艳
Owner 山东岩马湖投资置业有限公司