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CN-224229233-U - Sealing structure for coal mill

CN224229233UCN 224229233 UCN224229233 UCN 224229233UCN-224229233-U

Abstract

The application provides a sealing structure for a coal mill, which comprises a pull rod arranged in an inner cavity of a sealing shell, first sealing rings arranged at the top and the bottom of the pull rod, wherein the number of the first sealing rings is two, sealing components are fixedly arranged at the top and the bottom of the inner cavity of the sealing shell, a pushing component is movably connected to the front side of the inner cavity of the sealing shell, connecting rings are fixedly arranged at the top and the bottom of the pushing component, one side of each connecting ring is provided with the first sealing ring, and one side of each connecting ring is provided with the second sealing ring. Through seal assembly and pushing component's design, utilize go-between extrusion sealing ring and sealed pad for the surface at the pull rod is fully laminated to the sealed pad, makes the inseparabler of laminating between sealed pad and the pull rod, thereby increases sealed effect, avoids air or dust to get into inside the sealed casing, reduces the phenomenon of leaking powder and wearing and tearing pull rod, has improved production efficiency.

Inventors

  • LU JIANXIN
  • YANG DONGSHENG
  • Xue Muyi
  • WANG KAIXUAN

Assignees

  • 新疆生产建设兵团红星发电有限公司

Dates

Publication Date
20260512
Application Date
20250512

Claims (6)

  1. 1. A sealing structure for a coal mill, comprising: a pull rod (2) arranged in the inner cavity of the sealing shell (1); the first sealing rings (3) are arranged at the top and the bottom of the pull rod (2); The number of the first sealing rings (3) is two, the top and the bottom of the inner cavity of the sealing shell (1) are fixedly provided with sealing assemblies (4), the front side of the inner cavity of the sealing shell (1) is movably connected with a pushing assembly (5), the top and the bottom of the inner cavity of the sealing shell (1) are fixedly provided with connecting rings (6), one side of each connecting ring (6) is provided with a first sealing ring (7), one side of each connecting ring (6) is provided with a second sealing ring (8), the sealing assembly (4) comprises a sealing shell (401), the two sealing shells (401) are respectively and fixedly arranged at the top and the bottom of the sealing shell (1), the inner cavity of the sealing shell (401) is provided with a first sealing groove (402), the inner cavity of the sealing shell (401) is provided with a second sealing groove (403), the inner cavity of the sealing shell (401) is provided with a first sealing gasket (404), the inner cavity of the sealing shell (401) is provided with a second sealing gasket (405), the inner cavity of the sealing shell (401) is provided with a third sealing gasket (406), the inner cavity of the sealing shell (401) is provided with a second sealing ring (8), the sealing assembly (501) is fixedly arranged on the inner cavity of the rotating shaft (501), the rotating shaft (501) comprises the rotating shaft (501) and the rotating shaft (501) is fixedly arranged on the front side of the rotating shaft (1), the surface fixed mounting of dwang (501) has worm (503), the bottom meshing of worm (503) has worm wheel (504), the inner chamber fixed mounting of worm wheel (504) has two-way lead screw (505), the equal threaded connection in both sides on two-way lead screw (505) surface has fixed block (506), the rear side fixed mounting of fixed block (506) has connecting plate (507), the rear side fixed mounting of connecting plate (507) has supporting shoe (508), the equal fixed mounting in top and bottom of supporting shoe (508) has arc piece (509), the equal swing joint in one side that two arc pieces (509) are opposite has swash plate (510), the equal fixed mounting in one side that two swash plate (510) are opposite has backup pad (511), fixed mounting has backup pad (512) between the one side that two backup pads (511) are opposite, one side fixed mounting of backup pad (512) has connecting rod (513) with one side fixed connection of go-between (6), the surface mounting of connecting rod (507) has protective housing (514), one side fixed mounting of connecting rod (513) has spring (515), one side fixed mounting that is close to protective housing (514).
  2. 2. The sealing structure for the coal mill according to claim 1, wherein a second sealing ring (407) is installed on the surface of the sealing shell (401), and one side, close to the sealing shell (1), of the second sealing ring (407) is fixedly connected with the sealing shell (1).
  3. 3. The sealing structure for the coal mill according to claim 1, wherein a movable block (516) is movably connected to the rear side of the rotating rod (501), and one side of the movable block (516) close to the sealing shell (1) is fixedly connected with the sealing shell (1).
  4. 4. A sealing structure for a coal mill according to claim 3, characterized in that a sliding block (517) is fixedly installed on the rear side of the supporting block (508), a sliding rod (518) is slidably connected to the inner cavity of the sliding block (517), and both sides of the sliding rod (518) are fixedly installed in the inner cavity of the sealing housing (1).
  5. 5. The sealing structure for the coal mill according to claim 4, wherein the positioning blocks (519) are fixedly installed on the front side and the rear side of the supporting plate (511), the inner cavity of each positioning block (519) is slidably connected with a positioning rod (520), and one side, close to the sealing shell (1), of each positioning rod (520) is fixedly connected with the sealing shell (1).
  6. 6. The sealing structure for a coal mill according to claim 4, wherein a fixing ring (521) is sleeved on the surface of the protective shell (514), and one side of the fixing ring (521) close to the sealing shell (1) is fixedly connected with the sealing shell (1).

Description

Sealing structure for coal mill Technical Field The utility model relates to the technical field of coal mills, in particular to a sealing structure for a coal mill. Background The coal mill is equipment for preparing coal mine powder, is mainly applied to equipment in the fields of steel plants and industrial power plants, is widely applied to industries such as electric power, coal and the like, and has sealing performance which directly influences the operation efficiency, energy consumption and environmental safety of the equipment, and the sealing structure of the traditional coal mill has a plurality of defects. In the operation process of the pull rod of the existing coal mill, the sealing element is in a severe environment of high-temperature coal dust for a long time, the sealing element is extremely easy to damage due to scouring and erosion of the high-temperature coal dust, and then the leaked coal dust can continuously abrade the pull rod, along with the movement of the pull rod, powder materials can enter the lower sealing element along the pull rod, after entering the lower sealing element, the abrasion of the lower sealing element can be aggravated, the sealing performance of the lower sealing element is reduced, and finally the powder materials are further leaked. Therefore, we make improvements to this and propose a sealing structure for coal mill. Disclosure of utility model The utility model aims to solve the problems that in the running process of the pull rod of the conventional coal mill, a sealing element is in a severe environment of high-temperature coal dust for a long time, the sealing element is extremely easy to damage due to scouring and erosion of the high-temperature coal dust, and the leaked coal dust is frequently leaked, so that the pull rod is continuously worn, along with the movement of the pull rod, powdery materials enter the lower sealing element along the pull rod, and after entering the lower sealing element, the abrasion of the lower sealing element is aggravated, the sealing performance of the lower sealing element is reduced, and finally the powdery materials are further leaked. In order to achieve the above object, the present utility model provides the following technical solutions: The sealing structure for the coal mill is used for improving the problems. The application is specifically as follows: The sealing device comprises a pull rod arranged in an inner cavity of a sealing shell, first sealing rings arranged at the top and the bottom of the pull rod, wherein the number of the first sealing rings is two, sealing components are fixedly arranged at the top and the bottom of the inner cavity of the sealing shell, a pushing component is movably connected to the front side of the inner cavity of the sealing shell, connecting rings are fixedly arranged at the top and the bottom of the pushing component, one side of each connecting ring is provided with the first sealing ring, and one side of each connecting ring is provided with the second sealing ring. Realize above-mentioned technical scheme, through seal assembly and pushing component's design, utilize go-between extrusion sealing ring and sealed pad for the surface at the pull rod is fully laminated to the sealed pad, makes the more inseparable of laminating between sealed pad and the pull rod, thereby increases sealed effect, avoids air or dust to get into inside the sealed casing, reduces the phenomenon of leaking powder and wearing and tearing pull rod, has improved production efficiency. As a preferred implementation mode of the sealing structure for the coal mill, the sealing assembly comprises sealing shells, the two sealing shells are respectively and fixedly arranged at the top and the bottom of the sealing shell, a first sealing groove is formed in the inner cavity of the sealing shell, a second sealing groove is formed in the inner cavity of the sealing shell, a first sealing gasket is arranged in the inner cavity of the sealing shell, a second sealing gasket is arranged in the inner cavity of the sealing shell, and a third sealing gasket is arranged in the inner cavity of the sealing shell. Realize above-mentioned technical scheme, promote two go-between through pushing away the subassembly and remove to opposite direction, first sealed pad, second sealed pad and the third sealed pad of extrusion through first sealing ring and second sealing ring when the go-between removes, utilize go-between and sealing ring extrusion sealing pad for the surface at the pull rod is fully laminated to the sealing pad, make more closely of laminating between sealing pad and the pull rod, thereby increase sealed effect, avoid air or dust to get into inside the sealed casing, reduce the phenomenon of leaking the powder and wearing and tearing pull rod, improved production efficiency. As a preferable implementation mode of the sealing structure for the coal mill, provided by the utility model, a second sealing ring