Blockage removing device for feeding pipeline of cement grinding mill

Abstract

The utility model provides a feeding pipeline unblocking device of a cement grinding mill, which relates to the technical field of dredging of feeding pipelines of cement grinding mills and comprises a feeding head and a known cement grinding mill feeding port on the cement grinding mill and further comprises a fixing frame fixedly mounted on the outer wall of the feeding head and the outer wall of the cement grinding mill feeding port, the feeding head and the cement grinding mill feeding port are arranged on the same center line, and the fixing frame is fixedly mounted on the cement grinding mill feeding port. The position, away from the feeding head, of the fixing frame is rotationally connected with a rotating cylinder, and the main feeding pipeline and the auxiliary feeding channel are arranged, so that the main feeding pipeline and the auxiliary feeding channel alternately enter the position between the feeding head and a feeding opening of the cement grinding mill through rotation of the rotating cylinder, and raw material conveying is achieved; and the rotated-out main feeding pipeline or the auxiliary feeding channel can be used for scraping attachments on the inner wall by using a scraping rod, so that the internal smoothness is ensured, and the scraping effect can be ensured in a manner of scraping from top to bottom.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement mill feed pipeline dredging technical field especially relates to a kind of cement mill feed pipeline unblocking device. BACKGROUND

[0002] Cement mill is mainly used for cement plant finished product and raw material grinding, also can be used for metallurgy, chemical industry, electric power and so on industrial enterprise grinding various ore and other grindability material.Cement mill has the advantages such as environmental protection, no pollution, low energy consumption, large output, long trouble-free operation time, but long time use, cement mill feed pipeline is easy to block.

[0003] Therefore, one kind of cement mill feed pipeline unblocking device, the public number is: CN220460946U, including feed pipe and cement mill, the discharge end of the feed pipe is communicated with the cement mill, the feed pipe includes feed section and discharge section, the buffer assembly is arranged in the feed section, the turnover assembly is arranged in the discharge section, the discharge section and the feed section are all provided with the material scraping assembly, the material scraping assembly includes scraping plate, guide column and drive cylinder, the drive cylinder is fixed on the side wall of feed pipe, and the drive cylinder drives the scraping plate to move, one end of the guide column is connected with the scraping plate, one end of the guide column penetrates and slides on the side wall of feed pipe, when using, drive cylinder drives the scraper to reciprocate on the top wall in feed pipe, can effectively scrape off the material adhered to the inner wall of feed pipe, avoid the accumulation of material.

[0004] But the scraper can scrape off the material on the inner wall of feed pipe when advancing, but when retreating, the material is easy to be stuck between the back of scraper and the inner wall of feed pipe, and gradually extrude the material along with the movement of scraper, cause the material to be caked, so that the material cannot be shed. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in prior art, and provides a kind of cement mill feed pipeline unblocking device.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a kind of cement mill feed pipeline unblocking device, including feed head and known cement mill on cement mill feed port, further including with the fixed installation of the fixed frame of feed head and cement mill feed port outer wall, the feed head and cement mill feed port are arranged with center line, the fixed frame is rotationally connected with rotary drum at the position away from feed head, the rotary drum outer wall is fixedly installed with main feed pipe and vice feed passage, the main feed pipe and vice feed passage are distributed in annular array around rotary drum and are used to alternately enter between feed head and cement mill feed port, the fixed frame is rotationally connected with electric telescopic rod in rotary drum, and the electric telescopic rod telescopic end is fixedly connected with the scraper rod for slidingly connected with the inner wall of main feed pipe and vice feed passage.

[0007] Preferably, the inner wall of the main feeding pipe and the auxiliary feeding channel are threadedly connected with an inner pipe, and the bottom end of the scraper rod is disc-shaped and is slidingly connected with the inner wall of the inner pipe.

[0008] Preferably, the bottom end of the rotating drum extends outward through the fixed frame and is fixedly connected with a gear ring, the bottom end of the cylinder of the electric telescopic rod extends downward through the gear ring and is fixedly connected with a spur gear, the spur gear is arranged at the same center as the gear ring, and the bottom edge of the fixed frame is rotatably connected with a double-head gear shaft near the spur gear, and the gears at the two ends of the double-head gear shaft are meshingly connected with the gear ring and the spur gear, respectively.

[0009] Preferably, the bottom edge of the fixed frame is further fixedly connected with a spring rod, the spring rod is located below the spur gear, and the telescopic end of the spring rod is fixedly connected with a friction plate for abutting against the surface of the spur gear.

[0010] Preferably, the bottom edge of the fixed frame is further fixedly connected with a spring rod, the spring rod is located below the spur gear, and the telescopic end of the spring rod is fixedly connected with a friction plate for abutting against the surface of the spur gear.

[0011] Preferably, the bottom edge of the fixed frame is further fixedly connected with a spring rod, the spring rod is located below the spur gear, and the telescopic end of the spring rod is fixedly connected with a friction plate for abutting against the surface of the spur gear.

[0012] Preferably, the bottom edge of the fixed frame is further fixedly connected with a spring rod, the spring rod is located below the spur gear, and the telescopic end of the spring rod is fixedly connected with a friction plate for abutting against the surface of the spur gear.

[0013] Compared with the prior art, the advantages and positive effects of the utility model lie in that,

[0014] 1. In the utility model, the main feeding pipe and the auxiliary feeding channel are arranged, the rotation of the rotating drum realizes the alternation of the main feeding pipe and the auxiliary feeding channel into the space between the feeding head and the cement mill feeding port, so that when the main feeding pipe is not smooth, the rotation of the rotating drum realizes the replacement of the main feeding pipe by the auxiliary feeding channel to continue the raw material conveying between the feeding head and the cement mill feeding port, and the scraped inner wall attachments of the rotated main feeding pipe can be scraped by the scraper rod to ensure the smoothness of the inside and facilitate the raw material conveying between the feeding head and the cement mill feeding port when the auxiliary feeding channel is blocked, and the scraping effect can be ensured by the upward-to-downward scraping mode.

[0015] 2. In the utility model, the rotation of the gear ring by 90 degrees and the synchronous rotation of the spur gear by 180 degrees can be realized by arranging the double-head gear shaft, so that the rotation of the scraper rod with the rotation of the rotating drum can be ensured, and the scraper rod can be located above the rotated main feeding pipe or auxiliary feeding channel to facilitate the scraping and cleaning of the inside of the main feeding pipe or auxiliary feeding channel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of the clogging clearing device for the feed pipeline of the cement mill is provided for the utility model.

[0017] Figure 2 A perspective view of the clogging clearing device for the feed pipeline of the cement mill is provided for the utility model. Figure 1

[0018] Figure 3 A perspective view of the clogging clearing device for the feed pipeline of the cement mill is provided for the utility model. Figure 1

[0019] Figure 4 A perspective view of the clogging clearing device for the feed pipeline of the cement mill is provided for the utility model.

[0020] Figure 5 A perspective view of the clogging clearing device for the feed pipeline of the cement mill is provided for the utility model. Figure 2 A perspective view of the clogging clearing device for the feed pipeline of the cement mill is provided for the utility model.

[0021] Legend: 1, feed head; 2, main feed pipeline; 3, cement mill feed inlet; 4, fixed frame; 5, auxiliary feed passage; 6, scraper rod; 7, inner tube; 8, rotating drum; 9, electric push rod; 10, gear ring; 11, straight gear; 12, spring rod; 13, friction plate; 14, motor; 15, drive gear; 16, double-end gear shaft; 17, electric telescopic rod; 18, abutting rod. DETAILED DESCRIPTION

[0022] In order to make the above objects, features and advantages of the utility model more clearly understood, the utility model will be further described below with reference to the drawings and embodiments.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiments disclosed in the following description.

[0024] As Figures 1-5 ​​As shown, a kind of cement mill feed pipe blockage removing device, including feed head 1 and the cement mill feed port 3 on known cement mill, also include with the fixed mounting of fixed frame 4 of feed head 1 and cement mill feed port 3 outer wall, feed head 1 and cement mill feed port 3 same center line setting, fixed frame 4 is away from the position of feed head 1 rotationally connected with rotary drum 8, rotary drum 8 outer wall fixed mounting has main feed pipe 2 and vice feed passage 5, main feed pipe 2 and vice feed passage 5 surround rotary drum 8 annular array distribution and for alternately enter between feed head 1 and cement mill feed port 3, actual use, main feed pipe 2 and vice feed passage 5 through rotary drum 8 reciprocating rotation ninety degrees and realize alternately enter between feed head 1 and cement mill feed port 3 for raw material delivery, fixed frame 4 rotationally connected with electric telescopic rod 17 in rotary drum 8, electric telescopic rod 17 telescopic end fixedly connected with the scraping rod 6 for with the inner wall sliding connection of main feed pipe 2 and vice feed passage 5, when main feed pipe 2 or vice feed passage 5 is separated from between feed head 1 and cement mill feed port 3, using electric telescopic rod 17 rotates corresponding angle to realize that scraping rod 6 moves to the just above of main feed pipe 2 or vice feed passage 5, namely, through the contraction of electric telescopic rod 17, scraping rod 6 can be lowered to enter main feed pipe 2 or vice feed passage 5, to realize the cleaning of the inner wall of main feed pipe 2 or vice feed passage 5, ensure the smooth degree of main feed pipe 2 or vice feed passage 5 when used for conveying raw materials by regular or irregular cleaning.

[0025] Further: the inner wall of main feed pipe 2 and vice feed passage 5 is all threadedly connected with inner tube 7, the bottom end of scraping rod 6 is disc-shaped and is slidingly connected with the inner wall of inner tube 7, the inner wall of inner tube 7 is smooth, which can ensure the smoothness of raw material delivery, and even if the inner wall of inner tube 7 is seriously worn after long-term use, the inner tube 7 can be removed by rotating, and a new inner tube 7 can be replaced.

[0026] Further: the bottom end of rotary drum 8 extends outwardly through fixed frame 4 and is fixedly connected with gear ring 10, the bottom end of the cylinder of electric telescopic rod 17 extends downwardly through gear ring 10 and is fixedly connected with spur gear 11, the spur gear 11 is arranged at the same center as gear ring 10, double-head gear shaft 16 is rotationally connected to the position close to spur gear 11 at the bottom edge of fixed frame 4, the gears at both ends of double-head gear shaft 16 are respectively meshingly connected with the tooth surfaces of gear ring 10 and spur gear 11, by selecting spur gear 11, gear ring 10 and double-head gear shaft 16 of corresponding size, Figure 5 As shown, the double-head gear shaft 16 is gear-shaped at both ends, and in actual use, the angle and actual size of double-head gear shaft 16 can be adjusted, i.e. rotary drum 8 can be rotated by 90 degrees by rotating gear ring 10 by 90 degrees, and when main feed pipe 2 and vice feed passage 5 are alternately used, the meshing transmission of double-head gear shaft 16 can drive electric telescopic rod 17 to rotate by 180 degrees, combined with Figure 1 And Figure 5, the gear ring 10 rotates counterclockwise by ninety degrees to achieve the main feed pipe 2 from the feed head 1 and the secondary feed channel 5 to the feed head 1 port alignment, the straight gear 11 rotates 180 degrees to achieve the scraper 6 to rotate to the front, and just above the main feed pipe 2 is turned out, and vice versa, the gear ring 10 rotates counterclockwise by ninety degrees to achieve the main feed pipe 2 to re-enter the feed head 1 below, and the secondary feed channel 5 is separated from the feed head 1 below, and the scraper 6 will be moved to the state shown in Figure 1 , that is, the scraper 6 rotates with the rotation of the rotating drum 8, and can alternately clean the main feed pipe 2 or the secondary feed channel 5 above the feed head 1. The bottom edge of the fixed frame 4 is also fixedly connected with the spring rod 12, the spring rod 12 is located below the straight gear 11, and the spring rod 12 is fixedly connected with the friction plate 13 for abutting the surface of the straight gear 11. The elastic elongation of the spring rod 12 can push the friction plate 13 to abut the end face of the straight gear 11, and the position of the straight gear 11 is locked by increasing the pressure, that is, the rotation of the gear ring 10 is prevented, that is, the position of the main feed pipe 2 or the secondary feed channel 5 is stable during use.

[0027] Further, the electric push rod 9 is fixedly installed on the other side of the bottom edge of the fixed frame 4, the electric push rod 9 is fixedly installed with the motor 14 downward, the motor 14 is installed with the drive gear 15, the drive gear 15 is used for meshing with the tooth surface of the straight gear 11, the friction plate 13 is fixedly connected with the abutting rod 18 for abutting the end face of the drive gear 15, the spring rod 12, the electric push rod 9 and the double-headed gear shaft 16 are connected with the fixed frame 4 at different positions around the straight gear 11. In actual use, the drive gear 15 set on the extension end of the electric push rod 9 is lowered to mesh with the straight gear 11 by elongation, and when the drive gear 15 meshes with the straight gear 11, the drive gear 15 will push the abutting rod 18 to descend, thereby realizing the friction plate 13 to overcome the pushing force of the spring rod 12 and descend to separate from the straight gear 11. The motor 14 drives the drive gear 15 to rotate, and the straight gear 11 rotates.

[0028] Working principle, as Figure 1As shown, the electric telescopic rod 17 is extended to make the scraper 6 rise to disengage the sub-feed channel 5, and the main feed pipe 2 is located between the feed head 1 and the cement mill feed port 3 to realize the raw material passing through the feed head 1, the main feed pipe 2 and the cement mill feed port 3, and finally entering the cement mill for processing. When the main feed pipe 2 is used for a period of time to cause the attachment inside the pipe, the electric push rod 9 is extended to make the driving gear 15 arranged at the telescopic end thereof descend to engage with the straight gear 11, the driving gear 15 is rotated by the motor 14 to realize the rotation of the straight gear 11 by 180 degrees, the tooth ring 10 drives the rotary drum 8 to rotate by 90 degrees under the engagement transmission of the double-head gear shaft 16 to realize the sub-feed channel 5 replacing the main feed pipe 2 to enter below the feed head 1 to realize the conveying of the raw material. At this time, the scraper 6 is located directly above the rotated main feed pipe 2, and the electric telescopic rod 17 is retracted to make the scraper 6 enter the main feed pipe 2 and scrape off the attachment on the inner wall of the main feed pipe 2, and wait for reuse.

[0029] The wiring diagram of the electric push rod 9, the motor 14 and the electric telescopic rod 17 in the utility model belongs to the common knowledge in the field, and the working principle thereof is a known technology, and the model thereof is selected according to the actual use, so the control mode and the wiring arrangement of the electric push rod 9, the motor 14 and the electric telescopic rod 17 are not explained in detail.

[0030] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiments still belong to the protection scope of the utility model technical scheme.

Claims

1. A device for unclogging the feed pipe of a cement mill, comprising a feed head (1) and a known cement mill feed inlet (3) on a cement mill, characterized in that: It also includes a fixing frame (4) fixedly installed on the outer wall of the feed head (1) and the cement mill feed port (3). The feed head (1) and the cement mill feed port (3) are set on the same center line. The fixing frame (4) is rotatably connected to a rotating drum (8) at a position away from the feed head (1). The outer wall of the rotating drum (8) is fixedly installed with a main feed pipe (2) and a secondary feed channel (5). The main feed pipe (2) and the secondary feed channel (5) are arranged in a ring array around the rotating drum (8) and are used to alternately enter between the feed head (1) and the cement mill feed port (3). An electric telescopic rod (17) located inside the rotating drum (8) is rotatably connected inside the fixing frame (4). The telescopic end of the electric telescopic rod (17) is fixedly connected to a scraper (6) for sliding connection with the inner wall of the main feed pipe (2) and the secondary feed channel (5).

2. The unblocking device for the feed pipe of a cement mill according to claim 1, characterized in that: The inner walls of the main feed pipe (2) and the auxiliary feed channel (5) are both threaded with inner tubes (7), and the bottom end of the scraper (6) is disc-shaped and slidably connected to the inner wall of the inner tube (7).

3. The unblocking device for the feed pipe of a cement mill according to claim 1, characterized in that: The bottom end of the rotating drum (8) extends outward through the fixed frame (4) and is fixedly connected to a gear ring (10). The bottom end of the cylinder of the electric telescopic rod (17) extends downward through the gear ring (10) and is fixedly connected to a spur gear (11). The spur gear (11) and the gear ring (10) are set at the same center. The bottom edge of the fixed frame (4) is rotatably connected to a double-headed gear shaft (16) near the spur gear (11). The gears at both ends of the double-headed gear shaft (16) mesh with the gear ring (10) and the spur gear (11) respectively.

4. The unblocking device for the feed pipe of a cement mill according to claim 3, characterized in that: The bottom edge of the fixed frame (4) is also fixedly connected to a spring rod (12), which is located below the spur gear (11) and the extension end of the spring rod (12) is fixedly connected to a friction plate (13) for abutting against the surface of the spur gear (11).

5. The unblocking device for the feed pipe of a cement mill according to claim 4, characterized in that: An electric push rod (9) is fixedly installed through the other side of the bottom edge of the fixed frame (4). The electric push rod (9) has a motor (14) fixedly installed with its telescopic end facing downwards. The main shaft of the motor (14) is equipped with a drive gear (15).

6. The unblocking device for the feed pipe of a cement mill according to claim 5, characterized in that: The drive gear (15) is used to mesh with the tooth surface of the spur gear (11), and the friction plate (13) extends outward on the side and is fixedly connected with an abutment rod (18) for abutting against the end face of the drive gear (15).

7. The unblocking device for the feed pipe of a cement mill according to claim 6, characterized in that: The connection points of the spring rod (12), electric push rod (9) and double-headed gear shaft (16) with the fixed frame (4) are located at different positions around the spur gear (11).

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