A sealing device for a coal injection pipe at a kiln head

By introducing structures such as fixed seats, sliders, bolts, and rubber rings into the sealing device of the kiln head pulverized coal injection pipe, the problem of incomplete sealing is solved, and precise fixing and sealing of the kiln head pulverized coal injection pipe is achieved, reducing energy waste and dust pollution, and meeting the energy-saving and environmental protection requirements of green production.

CN224517344UActive Publication Date: 2026-07-17HEBEI JINYU DINGXIN CEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI JINYU DINGXIN CEMENT CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing kiln head pulverized coal injection pipe sealing device has problems such as incomplete sealing, increased gaps, and damaged sealing performance during use, which leads to material leakage and cold air entry at the kiln head, increases clinker heat consumption, and does not meet the energy-saving and environmental protection requirements of green production.

Method used

The system employs a structure consisting of a fixed base, a slider, a first fixing ring, a first bolt, a groove, and a connecting pipe, achieving precise sealing through bolt connections. Simultaneously, it utilizes a structure consisting of a rubber ring, a second fixing ring, a second bolt, and a connecting ring, leveraging the elastic deformation of the rubber ring to achieve sealing stability and adaptability.

Benefits of technology

It achieves precise fixing and sealing of the pulverized coal injection pipe at the kiln head, preventing material leakage and cold air ingress at the kiln head, improving sealing and stability, reducing energy waste and dust pollution, and meeting the requirements of green production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of kiln head coal injection pipe sealing devices, including wall, the center point of wall is provided with first pipeline and first pipeline is through wall, the side fixedly connected with fixed seat of wall, the side fixedly connected with four sliding blocks of fixed seat, one end of fixed seat is provided with connecting pipe, one end of connecting pipe is provided with second pipeline, the surface of second pipeline is provided with four second threaded holes, the outer surface of connecting pipe is provided with four third threaded holes. Through the above structure, using first fixed ring and second fixed ring, the fixed seat, connecting ring, second pipeline can be fixedly connected, better realize fixed effect, enhance sealing effect, use rubber ring, can be realized in pipeline stress is produced larger elastic deformation and can quickly change back, avoid second pipeline to be damaged by pressure.
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Claims

1. A sealing device for a coal injection pipe of a kiln head, characterized in that, Includes a wall (2), a first pipe (1) is provided at the center point of the wall (2) and the first pipe (1) penetrates the wall (2), a fixed seat (5) is fixedly connected to one side of the wall (2), four sliders (8) are fixedly connected to one side of the fixed seat (5), and a connecting pipe (3) is provided at one end of the fixed seat (5). One end of the connecting pipe (3) is provided with a second pipe (4), the surface of the second pipe (4) is provided with four second threaded holes (12), and the outer surface of the connecting pipe (3) is provided with four third threaded holes (15).

2. A seal for a coal injection pipe of a kiln head as claimed in claim 1, wherein, The outer surface of the connecting pipe (3) is provided with four first threaded holes (11), and the inner wall of the connecting pipe (3) is provided with four sliding grooves (9).

3. A seal for a coal injection pipe of a kiln head according to claim 1, wherein The outer surface of the connecting pipe (3) is provided with a first fixing ring (6), and four first bolts (7) are threaded through the outer surface of the first fixing ring (6). The four first bolts (7) are threadedly connected to a slider (8).

4. A seal for a coal injection pipe of a kiln head according to claim 1, wherein The connecting pipe (3) is threaded to the second pipe (4), and a second fixing ring (13) is provided on the outer surface of the connecting pipe (3).

5. A seal for a coal injection pipe of a kiln head according to claim 4, wherein, The outer surface of the second fixing ring (13) is penetrated by four second bolts (14), and the four second bolts (14) are threadedly connected to the second threaded hole (12) and the third threaded hole (15).

6. A seal for a coal injection pipe of a kiln head according to claim 1, wherein The inner ring of the connecting pipe (3) is provided with a connecting ring (16), and one end of the connecting ring (16) is provided with a rubber ring (10), and the connecting end of the second pipe (4) is attached to the rubber ring (10).