CN210207164U - Coal pulverizer, stone discharging device thereof and stone discharge door connecting assembly thereof - Google Patents
Coal pulverizer, stone discharging device thereof and stone discharge door connecting assembly thereof Download PDFInfo
- Publication number
- CN210207164U CN210207164U CN201920429096.1U CN201920429096U CN210207164U CN 210207164 U CN210207164 U CN 210207164U CN 201920429096 U CN201920429096 U CN 201920429096U CN 210207164 U CN210207164 U CN 210207164U
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- stone
- flange
- rock
- door
- discharge
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Abstract
The utility model provides a coal mill, a pebble discharge device thereof and a rock discharge door connecting assembly thereof, wherein the latter comprises a pebble door for coal gangue to pass through so as to enter a pebble coal chamber from a scraper layer, and the rock discharge door connecting assembly comprises a first flange plate detachably connected with the pebble door and a second flange plate detachably connected with the pebble door; the first flange plate is detachably and fixedly connected with a first waste rock discharge pipe extending out of the scraper layer, and the second flange plate is detachably and fixedly connected with a second waste rock discharge pipe extending out of the pebble coal chamber. The problem of concentricity and parallelism after installation is avoided, the installation difficulty of the stone door is reduced, and the maintenance efficiency is improved.
Description
Technical Field
The utility model relates to a coal mine machinery technical field, concretely relates to stone discharge door coupling assembling for stone eduction gear of coal pulverizer. The utility model discloses still relate to a stone eduction gear including this row's stone door coupling assembling to and including this stone eduction gear's coal pulverizer.
Background
In the working process of the coal mill, after the coal gangue accumulated in the pebble coal chamber is scraped by the scraper, the coal gangue needs to fall into a pebble coal hopper through a pebble discharge door in the pebble discharge device and is finally discharged into a gangue scooping machine. The stone discharge door is installed at an inlet of a stone coal chamber through a flange assembly, an upper flange of the flange assembly is fixed at an outlet of a scraper layer of a coal mill, and a lower flange is fixed at the inlet of the stone coal chamber, so that the problems that an upper flange and a lower flange are not parallel and concentric easily occur, and at the moment, a screw hole in the flange plate can be staggered, so that the stone discharge door wastes time when being connected with the upper flange and the lower flange in the replacement or maintenance process, the load can be influenced seriously, unnecessary loss is caused, and the maintenance time is not easy to grasp; meanwhile, when the upper flange and the lower flange are not parallel or concentric, the packing is not pressed tightly or is difficult to fill when the packing is filled, powder leakage is possible at the flange joint in a positive pressure system, and the corresponding measures for the phenomenon are that a circle of packing is additionally arranged at the joint or is plugged by lead oil and asbestos ropes, so that difficulty is caused when the door is replaced next time.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to solve at least one of the above problems, and the object is achieved by the following technical solutions.
In order to solve the technical problem, the utility model provides a rock discharge door connecting assembly for a rock discharge device, wherein the rock discharge device comprises a rock door for coal gangue to pass through to enter a rock coal chamber from a scraper plate layer, and the rock discharge door connecting assembly comprises a first flange plate detachably connected with the rock door and a second flange plate detachably connected with the rock door; the first flange plate is detachably and fixedly connected with a first waste rock discharge pipe extending out of the scraper layer, and the second flange plate is detachably and fixedly connected with a second waste rock discharge pipe extending out of the pebble coal chamber.
The utility model provides an among the coupling assembling of stone discharge door, its upper and lower flange dish all can be dismantled with the door of stone and be connected, and second flange dish and waste rock discharge union coupling, and the waste rock discharge pipe is the part of following the separation of stone coal chamber and extending, the back activity is connected with first ring flange to the stone door, it can have the adjustment volume of certain limit with the second flange dish in the connection, be convenient for the second flange dish adjusts the mounted position at any time with stone door connection, thereby the problem of concentricity and depth of parallelism appears after having avoided the installation, the installation degree of difficulty of stone door has been reduced, maintenance efficiency is improved.
Further, a first sealing element is arranged at the joint of the stone door and the first flange plate.
Further, a second sealing element is arranged at the joint of the stone door and the second flange plate.
Further, the first seal and/or the second seal are graphite packing.
Further, a compression flange is further sleeved between the second flange plate and the second gangue discharge pipe, and the compression flange compresses the second flange plate.
Further, a third sealing element is arranged between the second flange plate and the second gangue discharge pipe, and the third sealing element is a graphite packing.
The utility model also provides a stone eduction gear, include as above stone discharge door coupling assembling.
The utility model also provides a coal pulverizer, include as above stone eduction gear.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a specific embodiment of the coupling assembly of the rock-discharging door provided by the present invention.
Description of reference numerals:
1-first flange plate
2-second flange
3-second waste rock discharge pipe
4-pressing flange
5-third seal
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a specific embodiment of a rock-discharging door connecting assembly provided by the present invention.
In a specific embodiment, the utility model provides a rock discharge door coupling assembling is used for the stone eduction gear, and this stone eduction gear includes that the gangue passes in order to get into the stone coal room from the scraper blade layer the stone discharge door coupling assembling includes with the detachable first ring flange 1 who connects of stone door, and with the detachable second ring flange 2 who connects of stone door; first ring flange 1 with follow the first waste rock discharge pipe detachably fixed connection that the scraper layer stretches out, second ring flange 2 with follow the 3 detachably fixed connection of second waste rock discharge pipe that the stone coal chamber stretches out.
Wherein, the detachable connection mode that the detachable connection of stone door and first ring flange 1, the detachable connection of stone door and second ring flange 2, the detachable connection of first waste rock discharge pipe and first ring flange 1 and the detachable connection of second waste rock discharge pipe 3 and second ring flange 2 all can specifically be realized through various modes such as centre gripping is fixed, interference fit, increase seal structure clamping fit or bolted connection for both of taking the connection.
The utility model provides an among the coupling assembling of stone discharge door, its upper and lower flange dish all can be dismantled with the door of stone and be connected, and second flange dish 2 and waste rock discharge union coupling, and the waste rock discharge pipe is the part of following the separation of stone coal chamber and extending, the activity of the back is connected with first flange dish 1 to the stone door, it can have the adjustment volume of certain limit with second flange dish 2 in the joining process, be convenient for second flange dish 2 and stone door joining process adjust the mounted position at any time, thereby the problem of concentricity and parallelism appears after having avoided the installation, the installation degree of difficulty of stone door has been reduced, maintenance efficiency has been improved.
In order to ensure the sealing performance between two connected parts and ensure the overall sealing performance of the equipment, a first sealing element is arranged at the joint of the stone door and the first flange plate 1, and/or a second sealing element is arranged at the joint of the stone door and the second flange plate 2.
Further, the second flange plate 2 with still the cover is equipped with hold-down flange 4 between the second waste rock discharge pipe 3, hold-down flange 4 compresses tightly second flange plate 2 to improve the connection reliability and the stability between second flange plate 2 and the second waste rock discharge pipe 3.
And a third sealing element 5 is arranged between the second flange plate 2 and the second gangue pipe 3 so as to improve the sealing performance between the second flange plate and the second gangue pipe.
At least one of the first, second and third seals 5 is a graphite packing, preferably the first, second and third seals 5 are graphite packing.
The graphite packing is mainly formed by finely weaving various reinforced graphite wires such as reinforced fibers, metal wires (steel wires, copper wires, nickel wires, carbon fibers, pre-oxidized wires and glass yarns) and the like. The dynamic seal is suitable for dynamic seal under high temperature and high pressure conditions. Besides a few strong oxidizers, the sealing agent can be used for sealing media such as hot water, superheated steam, heat transfer fluid, ammonia solution, hydrocarbon, low-temperature liquid and the like, and is mainly used for sealing valves, pumps and reaction kettles under high-temperature, high-pressure and corrosion-resistant media. The graphite packing is used as a sealing element, the packing can be close to an ideal state, the range of the requirement on the size of the packing is enlarged, and the sealing performance is good.
The sealing elements can also be sealing gaskets, and the size of the sealing gaskets is the same as that of the joint surface of the flange plate, so that the overhauling time is further shortened.
In addition to above-mentioned arrange stone door coupling assembling, the utility model discloses still provide a stone eduction gear and including this stone eduction gear's coal pulverizer including this stone eduction gear, other each partial structures of this stone eduction gear and coal pulverizer please refer to prior art, do not limit here.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the present invention. Are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A kind of rock discharge door coupling assembling, is used in the rock discharge unit, the said rock discharge unit includes the rock door for the gangue to pass in order to enter the coal chamber of rock from the scraper blade layer, characterized by that, the said rock discharge door coupling assembling includes the first flange (1) that can be dismantled and connected with the said rock door, and the second flange (2) that can be dismantled and connected with the said rock door; first ring flange (1) with follow first waste rock discharge pipe detachably fixed connection that the scraper layer stretches out, second ring flange (2) with follow second waste rock discharge pipe (3) detachably fixed connection that the stone coal chamber stretches out.
2. A stone gate coupling assembly according to claim 1, characterized in that a first seal is provided where the stone gate meets the first flange (1).
3. A stone gate coupling assembly according to claim 2, characterized in that a second seal is provided where the stone gate meets the second flange (2).
4. The stonewall connection assembly of claim 3, wherein the first seal and/or the second seal is a graphite packing.
5. A waste gate connecting assembly according to any one of claims 1-4, characterized in that a compression flange (4) is further sleeved between the second flange plate (2) and the second waste discharge pipe (3), and the compression flange (4) compresses the second flange plate (2).
6. The discharge gate connecting assembly according to claim 5, characterized in that a third sealing element (5) is arranged between the second flange plate (2) and the second discharge pipe (3), and the third sealing element (5) is a graphite packing.
7. A rock evacuation device including a rock removal gate attachment assembly as claimed in any one of claims 1 to 6.
8. A coal pulverizer comprising the stone discharge apparatus of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920429096.1U CN210207164U (en) | 2019-04-01 | 2019-04-01 | Coal pulverizer, stone discharging device thereof and stone discharge door connecting assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920429096.1U CN210207164U (en) | 2019-04-01 | 2019-04-01 | Coal pulverizer, stone discharging device thereof and stone discharge door connecting assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210207164U true CN210207164U (en) | 2020-03-31 |
Family
ID=69922442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920429096.1U Expired - Fee Related CN210207164U (en) | 2019-04-01 | 2019-04-01 | Coal pulverizer, stone discharging device thereof and stone discharge door connecting assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210207164U (en) |
-
2019
- 2019-04-01 CN CN201920429096.1U patent/CN210207164U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 Termination date: 20210401 |