Coal mill coal drop pipe coal clogging cleaning device

Abstract

The invention discloses a coal mill coal drop pipe coal clogging cleaning device, and relates to the technical field of coal mill components. Comprising a coal drop pipe body, a collecting supporting bottom frame is slidably connected between the inner walls of the coal drop pipe body, a rotating table is rotatably connected to the center of the top side of the collecting supporting bottom frame, a rotating rod is fixedly connected to the outer edge of the rotating table, and a connecting rod is fixedly connected to the top side of the rotating table; a folding collecting disc is connected between the opposite sides of the connecting rod and the rotating rod. Through the arrangement of the rotating table, when coal falling operation is carried out, the folding collecting disc is folded and stored between the rotating rod and the connecting rod through rotation of the rotating table, coal briquettes can smoothly pass through the coal falling pipe, and when the coal falling pipe needs to be cleaned, the rotating table is rotated, the folding collecting disc is unfolded, and the inner wall of the coal falling pipe is scraped; therefore, ash accumulated on the inner wall of the coal drop pipe is hung down, and cleaning of the coal drop pipe is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mill components, in particular to a coal cleaning device for a coal chute of a coal mill. Background Art

[0002] A coal mill is a machine that breaks up coal blocks and grinds them into coal powder. It is an important auxiliary equipment for coal powder furnaces. There are vertical mills, high-pressure suspension roller mills, medium-speed micro-powder mills, overpressure trapezoidal mills, Raymond mills and other models. The coal grinding process is a process in which coal is broken and its surface area is continuously increased. To increase the new surface area, the binding force between solid molecules must be overcome, which consumes energy. Coal is ground into coal powder in a coal mill, mainly through crushing, smashing and grinding. Among them, the crushing process consumes the least energy. The coal drop pipe in the coal mill is a pipe used to transport coal blocks. An existing coal mill drop pipe coal cleaning device (Announcement No.: CN221069799U) has at least the following defects in use:

[0003] The above scheme, through the coordinated use of the connecting frame and the covering plate, can open the device as soon as coal is released from the coal drop pipe to immediately start the coal cleaning work; however, in actual use, after opening the coal drop pipe, the staff is still required to clean the inner wall of the pipe, which is rather troublesome, and the opening angle of the pipe is limited, and there may be four corners to clean, resulting in incomplete cleaning work. Therefore, a coal cleaning device for the coal drop pipe of a coal mill is developed. Summary of the invention

[0004] The main purpose of the present invention is to provide a coal cleaning device for a coal chute of a coal mill, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A coal cleaning device for a coal chute of a coal mill comprises a coal chute main body, a collecting support base frame being slidably connected between the inner walls of the coal chute main body, a rotating table being rotatably connected to the top center of the collecting support base frame, a rotating rod being fixedly connected to the outer edge of the rotating table, a connecting rod being fixedly connected to the top side of the rotating table, one side of the connecting rod being slidably connected to the outer edge of the rotating table, a folding collecting plate being connected between the opposite sides of the connecting rod and the rotating rod, and the outer edge of the folding collecting plate being in contact with the inner wall of the coal chute main body.

[0007] Preferably, a rotating motor is fixedly connected to the bottom side of the collecting support base, the output end of the rotating motor is fixedly connected to the rotating table, and a circle of protective bottom shell is fixedly connected to the bottom side of the collecting support base, and the interior of the protective bottom shell covers the rotating motor.

[0008] Preferably, a connecting slider is fixedly connected to each side of the collection support base frame, and a covering protection frame is fixedly connected to the top sides of the two connecting sliders. Two sliding grooves are opened on the inner wall of the coal drop pipe body, and the inner wall of each sliding groove is slidably connected to the outer wall of a connecting slider.

[0009] Preferably, two symmetrically distributed sliding frames are fixedly connected to both sides of the top of the coal drop pipe body, a recovery cover plate is fixedly connected to the top side of the two sliding frames, a lifting station is fixedly connected to the top side of the recovery cover plate, the output end of the lifting station is fixedly connected to the top side of the covering protection frame, and an extraction pipe is fixedly connected to the top side of the recovery cover plate.

[0010] Preferably, a circle of covering frame is fixedly connected to the bottom side of the recovery cover plate, a circle of linkage ring groove is provided on the outer edge of the covering frame, a circle of driven gear ring is rotatably connected between the inner walls of the linkage ring groove, and the inner wall of the driven gear ring extends to the interior of the covering frame.

[0011] Preferably, a plurality of crushing shafts are evenly and fixedly connected between the inner walls of the driven gear rings, one end of all the crushing shafts is commonly provided with a circle of supporting inner ring, the outer edge of each crushing shaft is rotatably connected to a crushing roller, and the bottom side of each crushing roller can be in contact with the top side of the folding collection plate.

[0012] Preferably, a driving frame is fixedly connected to the outer edge of the bottom side of the covering frame, and a crushing gear is rotatably connected to the top side of the driving frame, and the outer edge of the crushing gear is meshed with the driven gear ring.

[0013] Preferably, a pulverizing motor is fixedly connected to the bottom side of the driving frame, and the output end of the pulverizing motor is fixedly connected to a pulverizing gear.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By setting up the rotating table, when the coal dropping operation is carried out, the foldable collecting plate can be folded and stored between the rotating rod and the connecting rod by utilizing the rotation of the rotating table, so that the coal blocks can pass through the coal dropping pipe smoothly. When the coal dropping pipe is to be cleaned, the rotating table is rotated to open the foldable collecting plate and scrape the inner wall of the coal dropping pipe, thereby hanging down the ash accumulated on the inner wall of the coal dropping pipe to achieve the cleaning of the coal dropping pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an isometric view of the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of the coal drop pipe of the present invention;

[0018] Figure 3It is a schematic diagram of the structure of the scraping device of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the recovery device of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the extraction device of the present invention;

[0021] Figure 6 It is a schematic diagram of the covering frame structure of the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the pulverizing device of the present invention.

[0023] In the figure: 101, coal drop pipe body; 102, slide; 103, protective bottom shell; 104, collection support bottom frame; 105, connecting slider; 106, covering protection frame; 107, rotating rod; 108, connecting rod; 109, rotating table; 110, folding collection plate; 201, recovery cover; 202, covering frame; 203, sliding frame; 204, lifting rod; 205, crushing motor; 206, driving frame; 207, crushing gear; 208, linkage ring groove; 209, lifting station; 210, extraction pipe; 301, driven gear ring; 302, supporting inner ring; 303, crushing roller; 304, crushing shaft. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-Figure 4 , the present invention provides a technical solution:

[0028] A coal cleaning device for a coal chute of a coal mill comprises a coal chute body 101, a collecting support base frame 104 is slidably connected between the inner walls of the coal chute body 101, a rotating table 109 is rotatably connected to the top center of the collecting support base frame 104, a rotating rod 107 is fixedly connected to the outer edge of the rotating table 109, a connecting rod 108 is fixedly connected to the top side of the rotating table 109, one side of the connecting rod 108 is slidably connected to the outer edge of the rotating table 109, a folding collecting plate 110 is connected between the connecting rod 108 and the opposite sides of the rotating rod 107, and the outer edge of the folding collecting plate 110 is in contact with the inner wall of the coal chute body 101. In this embodiment, in order to increase the pressure between the foldable collecting tray 110 and the inner wall of the coal chute body 101, a plurality of support rods are evenly arranged on the bottom side of the foldable collecting tray 110, and each support rod is rotatably connected to the rotating shaft at the center of the rotating table 109 to form a structure similar to a folding fan, which opens the foldable collecting tray 110, and the outer edge of the support rod contacts the outer edge of the coal chute body 101 to scrape the inner wall of the coal chute body 101, and the foldable collecting tray 110 has a fine screen that can block coal powder and allow air to pass through.

[0029] A connecting slider 105 is fixedly connected to both sides of the collecting support frame 104, and a covering protection frame 106 is fixedly connected to the top sides of the two connecting sliders 105. Two slide grooves 102 are provided on the inner wall of the coal drop pipe body 101, and the inner wall of each slide groove 102 is slidably connected to the outer wall of a connecting slider 105. A rotating motor is fixedly connected to the bottom side of the collecting support frame 104, and the output end of the rotating motor is fixedly connected to the rotating table 109. A circle of protective bottom shell 103 is fixedly connected to the bottom side of the collecting support frame 104, and the interior of the protective bottom shell 103 covers the rotating motor. The operation of the rotating motor drives the rotating rod 107 to rotate, and the folding collection plate 110 is unfolded. After the unfolded folding collection plate 110 passes through the coal drop pipe body 101, the coal slag attached to the inner wall of the coal drop pipe body 101 is scraped off.

[0030] Two symmetrically distributed sliding frames 203 are fixedly connected to both sides of the top of the coal drop pipe body 101, a recovery cover 201 is fixedly connected to the top side of the two sliding frames 203, a lifting station 209 is fixedly connected to the top side of the recovery cover 201, a lifting rod 204 is fixedly connected to the output end of the lifting station 209, the bottom end of the lifting rod 204 is fixedly connected to the top side of the covering protection frame 106, and an extraction pipe 210 is fixedly connected to the top side of the recovery cover 201. In this embodiment, an air pump is fixedly provided at the outer end of the extraction pipe 210, and the air in the space enclosed by the recovery cover 201, the covering frame 202 and the folding collection tray 110 is extracted through the operation of the air pump, so that the coal slag on the folding collection tray 110 is extracted.

[0031] A circle of covering frame 202 is fixedly connected to the bottom side of the recovery cover plate 201, and a circle of linkage ring groove 208 is provided on the outer edge of the covering frame 202. A circle of driven gear ring 301 is rotatably connected between the inner walls of the linkage ring groove 208, and the inner wall of the driven gear ring 301 extends to the inside of the covering frame 202. Multiple crushing shafts 304 are evenly fixedly connected between the inner walls of the driven gear ring 301, and one end of all the crushing shafts 304 is commonly provided with a circle of supporting inner ring 302. A crushing roller 303 is rotatably connected to the outer edge of each crushing shaft 304, and the bottom side of each crushing roller 303 can contact the top side of the foldable collection tray 110.

[0032] A driving frame 206 is fixedly connected to the outer edge of the bottom side of the covering frame 202, and a crushing gear 207 is rotatably connected to the top side of the driving frame 206, and the outer edge of the crushing gear 207 is meshed with the driven gear ring 301. A crushing motor 205 is fixedly connected to the bottom side of the driving frame 206, and the output end of the crushing motor 205 is fixedly connected to the crushing gear 207. In this embodiment, the crushing gear 207 is driven to rotate by the rotation of the crushing motor 205, and the crushing gear 207 drives the driven gear ring 301 to rotate. The rotation of the driven gear ring 301 drives the crushing roller 303 to roll on the top side of the folding collection plate 110, crushing the collected coal slag to facilitate extraction by the extraction pipe 210.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached embodiments and their equivalents.

Claims

1. A coal cleaning device for a coal chute of a coal mill, comprising a coal chute body (101), characterized in that: A collecting support frame (104) is slidably connected between the inner walls of the coal drop pipe body (101); a rotating table (109) is rotatably connected to the center of the top side of the collecting support frame (104); a rotating rod (107) is fixedly connected to the outer edge of the rotating table (109); a connecting rod (108) is fixedly connected to the top side of the rotating table (109); one side of the connecting rod (108) is slidably connected to the outer edge of the rotating table (109); a folding collecting plate (110) is connected between the connecting rod (108) and the opposite sides of the rotating rod (107); the outer edge of the folding collecting plate (110) is in contact with the inner wall of the coal drop pipe body (101).

2. The device for cleaning coal from coal chute of coal mill according to claim 1, characterized in that: A rotating motor is fixedly connected to the bottom side of the collecting support base frame (104), the output end of the rotating motor is fixedly connected to the rotating platform (109), and a protective bottom shell (103) is fixedly connected to the bottom side of the collecting support base frame (104), the interior of the protective bottom shell (103) covers the rotating motor.

3. The device for cleaning coal from coal chute of coal mill according to claim 1, characterized in that: A connecting slide block (105) is fixedly connected to each of the two sides of the collecting support base frame (104); a covering protection frame (106) is fixedly connected to the top sides of the two connecting slide blocks (105); and two sliding grooves (102) are provided on the inner wall of the coal drop pipe body (101); and the inner wall of each sliding groove (102) is slidably connected to the outer wall of a connecting slide block (105).

4. A coal cleaning device for coal chute of coal mill according to claim 3, characterized in that: Two symmetrically distributed sliding frames (203) are fixedly connected to both sides of the top of the coal drop pipe body (101); a recovery cover plate (201) is fixedly connected to the top side of the two sliding frames (203); a lifting station (209) is fixedly connected to the top side of the recovery cover plate (201); an output end of the lifting station (209) is fixedly connected to the top side of the covering protection frame (106); and an extraction pipe (210) is fixedly connected to the top side of the recovery cover plate (201).

5. The device for cleaning coal from coal chute of coal mill according to claim 4, characterized in that: A circle of covering frame (202) is fixedly connected to the bottom side of the recovery cover plate (201), a circle of linkage ring groove (208) is provided on the outer edge of the covering frame (202), a circle of driven gear ring (301) is rotatably connected between the inner walls of the linkage ring groove (208), and the inner wall of the driven gear ring (301) extends to the inside of the covering frame (202).

6. A coal cleaning device for coal chute of coal mill according to claim 5, characterized in that: A plurality of pulverizing shafts (304) are evenly and fixedly connected between the inner walls of the driven gear ring (301), one end of all the pulverizing shafts (304) is commonly provided with a circle of supporting inner ring (302), the outer edge of each pulverizing shaft (304) is rotatably connected to a pulverizing roller (303), and the bottom side of each pulverizing roller (303) can contact the top side of the folding collection plate (110).

7. The device for cleaning coal from coal chute of coal mill according to claim 5, characterized in that: A driving frame (206) is fixedly connected to the outer edge of the bottom side of the covering frame (202), and a crushing gear (207) is rotatably connected to the top side of the driving frame (206), and the outer edge of the crushing gear (207) is meshed with the driven gear ring (301).

8. The device for cleaning coal from coal chute of coal mill according to claim 7, characterized in that: A pulverizing motor (205) is fixedly connected to the bottom side of the driving frame (206), and the output end of the pulverizing motor (205) is fixedly connected to a pulverizing gear (207).

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