Coal powder conveying and distributing device

Abstract

The utility model discloses a kind of coal powder conveying distribution devices, including shell, the top end side of the shell is provided with feed inlet, the bottom end of shell is provided with discharge port on the side away from feed inlet, the side of the shell away from feed inlet is covered with sealing cover, first motor is installed on sealing cover, the output end of first motor is fixedly connected with shaft, the outside fixed connection of shaft has helical blade, the other end rotationally connected with sealing plug of shaft, sealing plug and shell sealing sliding fit, the fixed mechanism for being fixed to sealing plug is fixedly connected on the shell, sealing plug, shaft and helical blade are conveniently disassembled from the inside of shell, it is convenient to clean, simultaneously, it avoids setting corresponding structure in the inside of shell, it is convenient for helical blade to cover in the inside of shell, it is convenient to carry out overall conveying to the coal powder in the inside of shell.

Description

Technical Field

[0001] This utility model relates to the technical field of pulverized coal conveying and distribution equipment, and more specifically, to a pulverized coal conveying and distribution device. Background Technology

[0002] Powdered coal refers to finely ground coal particles, commonly used for combustion to provide energy. Powdered coal has a particle size of less than 0.5 mm, low density, and good flowability. In engineering, powdered coal is often used as an additive in cast iron molding sand to help prevent surface defects such as sand adhesion and subcutaneous porosity, improve surface finish, and enhance the collapsibility of the molding sand.

[0003] A search revealed that Chinese utility model patent application number CN202421891304.7 discloses a coal powder conveying and distribution device, including a main body, a feeding mechanism, and a discharging mechanism. The feeding mechanism is located above the main body, and the discharging mechanism is located below the main body. The main body includes a shell, a first motor is fixedly connected to one end of the shell, a fixed shaft is fixedly connected to the output end of the first motor, a spiral blade is fixedly connected to the surface of the fixed shaft, and a second motor is fixedly connected to one end of the shell.

[0004] When in use, the second motor is started, which drives the lead screw to rotate, thereby moving the cleaning block back and forth. The cleaning block is adapted to the inner wall of the outer shell, which can scrape off the stains on the inner wall and clean it quickly. Since the lead screw and the cleaning block are both located inside the outer shell, there is a certain gap between the spiral blade and the inner wall of the shell. This causes some coal dust to accumulate on the inner bottom side of the shell. The coal dust will cover the outside of the lead screw and fill the thread groove of the lead screw. During the coal dust conveying and distribution process, the coal dust is easily compacted inside the thread groove of the lead screw, affecting the normal transmission between the lead screw and the cleaning block, and is prone to jamming, making it difficult to clean the coal dust inside the shell. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, the present invention provides a pulverized coal conveying and distribution device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pulverized coal conveying and distributing device, comprising a housing, an inlet on one side of the top of the housing, and an outlet on the side of the bottom of the housing away from the inlet. A sealing cover is provided on the side of the housing away from the inlet, and a first motor is mounted on the sealing cover. A rotating shaft is fixedly connected to the output end of the first motor, and a spiral blade is fixedly connected to the outside of the rotating shaft. A sealing plug is rotatably connected to the other end of the rotating shaft, and the sealing plug is in a sealing sliding fit with the housing. A fixing mechanism for fixing the sealing plug is fixedly connected to the housing. A fixing plate is fixedly connected to the sealing cover, and a threaded tube is fixedly connected to the fixing plate. An L-shaped seat is fixedly connected to the end of the housing away from the fixing plate, and a second motor is fixedly mounted on the L-shaped seat. A lead screw is fixedly connected to the output end of the second motor, and the lead screw is threadedly connected to the threaded tube. A support assembly is detachably connected to the sealing cover, which facilitates the removal of the sealing plug, rotating shaft, and spiral blade from the inside of the housing for cleaning. This also avoids the need for corresponding structures inside the housing, allowing the spiral blade to cover the inside of the housing and facilitating the comprehensive conveying of pulverized coal inside the housing.

[0009] The present invention is further configured such that the fixing mechanism includes a fixing block, the fixing block is fixedly connected to the outer shell, a screw is threadedly connected to the fixing block, a locking pin is fixedly connected to the side end of the screw, a plurality of locking grooves adapted to the locking pin are evenly arranged on the outside of the sealing plug, and a throttle is fixedly connected to the side end of the screw to facilitate fixing the sealing plug and prevent the sealing plug from rotating with the shaft.

[0010] The present invention is further configured such that the outer shell is provided with multiple limiting grooves, and the side end of the sealing cover is fixedly connected with multiple limiting rods, the multiple limiting rods slidingly engaging with the multiple limiting grooves respectively, thereby limiting the sealing cover.

[0011] The present invention is further provided that a sealing gasket is provided between the sealing cover and the outer shell to ensure the sealing performance of the connection between the sealing cover and the outer shell.

[0012] The present invention is further provided in that the outer side of the sealing plug is provided with an annular groove, and a sealing ring is sleeved inside the annular groove to ensure the sealing performance between the sealing plug and the outer shell.

[0013] The present invention is further configured such that the support assembly includes a support frame, a connecting seat is fixedly connected to the upper side of the support frame, a base plate is fixedly connected to the bottom end of the support frame, and multiple rollers are fixedly installed at the bottom end of the base plate to facilitate support of the sealing cover.

[0014] The present invention is further configured such that a fixing seat is fixedly connected to the side end of the sealing cover, and a connecting groove is provided on the side end of the fixing seat. The connecting seat is inserted into the interior of the connecting groove, and a fixing screw that mates with the connecting seat is threaded onto the connecting seat, which facilitates the disassembly and assembly of the support frame.

[0015] The present invention is further configured such that two support bases are fixedly connected to the bottom end of the outer shell, and each of the two support bases is fixedly connected to a mounting base. The mounting base is provided with multiple mounting holes to facilitate fixing it to the ground and supporting the outer shell at a certain height.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a pulverized coal conveying and distribution device, which has the following beneficial effects:

[0018] 1. The second motor drives the lead screw to rotate, causing the threaded tube to rotate relative to the lead screw. The threaded tube moves the sealing cover away from the outer shell. The sealing cover moves the rotating shaft, spiral blades, and sealing plug, thereby removing the sealing cover, rotating shaft, spiral blades, and sealing plug from the inside of the outer shell. This facilitates thorough cleaning of the coal dust on the corresponding structures. This avoids setting other structures besides the rotating shaft and spiral blades inside the outer shell, allowing the spiral blades to completely cover the inside of the outer shell, facilitating comprehensive conveying of coal dust inside the outer shell. The lead screw and threaded tube are all located on the outside of the outer shell, avoiding the problem in existing technologies where coal dust covers the outside of the lead screw and fills the thread groove of the lead screw. During the coal dust conveying and distribution process, the coal dust is easily compacted inside the thread groove of the lead screw, affecting the normal transmission between the lead screw and the cleaning block, and easily causing jamming, thus making it difficult to achieve the problem of cleaning coal dust inside the shell.

[0019] 2. Rotate the screw, and the screw moves relative to the fixed block. The screw drives the locking pin to move, so that the locking pin is inserted into the corresponding locking groove. The locking pin fixes the sealing plug, preventing the rotating shaft from rotating the sealing plug during the conveying and distribution of pulverized coal.

[0020] 3. Install the support on the sealing cover. The sealing cover is supported by the support frame, base plate and multiple rollers. As the sealing cover moves away from the outer shell, it provides stable support to ensure that the shaft, threaded tube and screw are in a horizontal state, and avoids bending and damage to the shaft, threaded tube and screw and other structures. Attached Figure Description

[0021] Figure 1 This is a front structural diagram of a pulverized coal conveying and distribution device according to the present invention;

[0022] Figure 2This is a structural diagram showing the connection between the outer shell, sealing cover, first motor, and fixed base in this utility model;

[0023] Figure 3 This is a schematic diagram of the connection between the fixing mechanism and the outer shell in this utility model;

[0024] Figure 4 This is a structural diagram showing the assembly of the sealing cover, first motor, rotating shaft, spiral blade, multiple limiting rods, and sealing plug in this utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the support frame, connecting seat, base plate and multiple rollers in this utility model.

[0026] In the diagram: 1. Outer shell; 2. Inlet; 3. Outlet; 4. Sealing cover; 5. First motor; 6. Shaft; 7. Spiral blade; 8. Sealing plug; 9. Fixing plate; 10. Threaded pipe; 11. L-shaped seat; 12. Second motor; 13. Lead screw; 14. Fixing block; 15. Screw; 16. Locking post; 17. Locking groove; 18. Rotary handle; 19. Limiting groove; 20. Limiting rod; 21. Sealing gasket; 22. Annular groove; 23. Sealing ring; 24. Support frame; 25. Connecting seat; 26. Base plate; 27. Roller; 28. Fixing seat; 29. ​​Connecting groove; 30. Fixing screw; 31. Support seat; 32. Mounting seat; 33. Mounting hole. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A pulverized coal conveying and distributing device includes a housing 1. Two support seats 31 are fixedly connected to the bottom of the housing 1. Each support seat 31 has a mounting base 32 fixedly connected to its bottom. The mounting base 32 has multiple mounting holes 33 for fixing it to the ground and supporting the housing 1 at a certain height. A feed inlet 2 is located on one side of the top of the housing 1, and a discharge outlet 3 is located on the bottom side of the housing 1 away from the feed inlet 2. A sealing cover 4 is located on the side of the housing 1 away from the feed inlet 2. A sealing gasket 21 is provided between the sealing cover 4 and the housing 1 to ensure a tight seal between them. Multiple limiting grooves 19 are provided on the housing 1. Multiple limiting rods 20 are fixedly connected to the side of the sealing cover 4. The multiple limiting rods 20 slide in contact with the multiple limiting grooves 19, limiting the sealing cover 4. A first motor 5 is installed on the housing. A rotating shaft 6 is fixedly connected to the output end of the first motor 5. A spiral blade 7 is fixedly connected to the outside of the rotating shaft 6. A sealing plug 8 is rotatably connected to the other end of the rotating shaft 6. An annular groove 22 is provided on the outside of the sealing plug 8. A sealing ring 23 is sleeved inside the annular groove 22 to ensure the sealing between the sealing plug 8 and the housing 1. The sealing plug 8 and the housing 1 are in a sealing sliding fit. A fixing mechanism for fixing the sealing plug 8 is fixedly connected to the housing 1. A fixing plate 9 is fixedly connected to the sealing cover 4. A threaded tube 10 is fixedly connected to the fixing plate 9. An L-shaped seat 11 is fixedly connected to the end of the housing 1 away from the fixing plate 9. A second motor 12 is fixedly installed on the L-shaped seat 11. A lead screw 13 is fixedly connected to the output end of the second motor 12. The lead screw 13 is threadedly connected to the threaded tube 10. A support assembly is detachably connected to the sealing cover 4.

[0031] Specifically, the second motor 12 drives the lead screw 13 to rotate. The rotation of the lead screw 13 causes the threaded tube 10 to rotate relative to the lead screw 13. The threaded tube 10 drives the sealing cover 4 to move away from the outer shell 1. The sealing cover 4 drives the rotating shaft 6, the spiral blade 7, and the sealing plug 8 to move, thereby removing the sealing cover 4, the rotating shaft 6, the spiral blade 7, and the sealing plug 8 from the inside of the outer shell 1. This facilitates thorough cleaning of the coal dust on the corresponding structures. It avoids setting other structures besides the rotating shaft 6 and the spiral blade 7 inside the outer shell 1, making it easier for the spiral blades to completely cover the inside of the outer shell 1 and facilitate the comprehensive transportation of coal dust inside the outer shell 1. The lead screw 13 and the threaded tube 10 are all set on the outside of the outer shell 1, avoiding the problem in the prior art where coal dust covers the outside of the lead screw 13 and fills the thread groove of the lead screw 13. During the coal dust transportation and distribution process, the coal dust is easily compacted inside the thread groove of the lead screw 13, affecting the normal transmission between the lead screw 13 and the cleaning block, and easily causing jamming, thus making it difficult to achieve the problem of cleaning coal dust inside the shell.

[0032] Please see Figure 1 and Figure 3The fixing mechanism includes a fixing block 14, which is fixedly connected to the outer shell 1. A screw 15 is threadedly connected to the fixing block 14, and a locking post 16 is fixedly connected to the side end of the screw 15. Multiple locking grooves 17 that are adapted to the locking post 16 are evenly arranged on the outside of the sealing plug 8. A throttle 18 is fixedly connected to the side end of the screw 15 to facilitate fixing the sealing plug 8 and prevent the sealing plug 8 from rotating with the rotating shaft 6.

[0033] Specifically, rotating the screw 15 causes the screw 15 to move relative to the fixed block 14. The screw 15 then moves the locking pin 16, causing the locking pin 16 to insert into the corresponding slot 17. The locking pin 16 then fixes the sealing plug 8, preventing the rotating shaft 6 from rotating the sealing plug 8 during the conveying and distribution of pulverized coal.

[0034] Please see Figure 1 , Figure 2 and Figure 5 The support assembly includes a support frame 24, a connecting seat 25 fixedly connected to the upper side of the support frame 24, a base plate 26 fixedly connected to the bottom of the support frame 24, and multiple rollers 27 fixedly installed at the bottom of the base plate 26 to facilitate support of the sealing cover 4. A fixing seat 28 is fixedly connected to the side of the sealing cover 4, and a connecting groove 29 is provided at the side of the fixing seat 28. The connecting seat 25 is inserted into the interior of the connecting groove 29, and a fixing screw 30 that mates with the connecting seat 25 is threaded onto the connecting seat 25 to facilitate disassembly and assembly of the support frame 24.

[0035] Specifically, the support frame 24 is installed on the sealing cover 4. The sealing cover 4 is supported by the support frame 24, the base plate 26 and multiple rollers 27. As the sealing cover 4 moves away from the outer shell 1, it provides stable support to ensure that the rotating shaft 6, the threaded tube 10 and the lead screw 13 are in a horizontal state, and to prevent the rotating shaft 6, the threaded tube 10 and the lead screw 13 from bending and being damaged.

[0036] In summary, when using the overall equipment:

[0037] After the device is used, insert the connecting seat 25 on the support frame 24 into the connecting groove 29, and then tighten the fixing screw 30 to fix the connecting seat 25. At this time, multiple rollers 27 are in contact with the ground. Then rotate the screw 15 to separate the locking post 16 from the locking groove 17. Then start the second motor 12, which drives the lead screw 13 to rotate, causing the threaded tube 10 to move away from the second motor 12. The threaded tube 10 drives the sealing cover 4, the rotating shaft 6, the spiral blade 7, and the sealing plug 8 to move. During the movement of the sealing plug 8 inside the outer shell 1, it can scrape off the coal powder on the inner wall of the outer shell 1. The scraped coal powder is pushed to the discharge port 3 and discharged through the discharge port 3 until the screw 15 separates from the threaded tube 10. Then, the sealing plug 8 is pulled out from the inside of the outer shell 1, which makes it easy to remove the sealing cover 4, the rotating shaft 6, and the spiral blade 7 from the inside of the outer shell 1, and to clean the sealing cover 4, the rotating shaft 6, the spiral blade 7, and the inside of the outer shell 1.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pulverized coal conveying and distributing device, comprising a housing (1), characterized in that: A feed inlet (2) is provided on one side of the top of the outer shell (1), and a discharge outlet (3) is provided on the side of the bottom of the outer shell (1) away from the feed inlet (2). A sealing cover (4) is provided on the side of the outer shell (1) away from the feed inlet (2). A first motor (5) is installed on the sealing cover (4). A rotating shaft (6) is fixedly connected to the output end of the first motor (5). A spiral blade (7) is fixedly connected to the outside of the rotating shaft (6). A sealing plug (8) is rotatably connected to the other end of the rotating shaft (6). The sealing plug (8) is in a sealing sliding fit with the outer shell (1). (1) A fixing mechanism for fixing the sealing plug (8) is fixedly connected to the upper part. A fixing plate (9) is fixedly connected to the sealing cover (4). A threaded tube (10) is fixedly connected to the fixing plate (9). An L-shaped seat (11) is fixedly connected to the end of the outer shell (1) away from the fixing plate (9). A second motor (12) is fixedly installed on the L-shaped seat (11). A lead screw (13) is fixedly connected to the output end of the second motor (12). The lead screw (13) is threadedly connected to the threaded tube (10). A support assembly is detachably connected to the sealing cover (4).

2. The pulverized coal conveying and distribution device according to claim 1, characterized in that: The fixing mechanism includes a fixing block (14), which is fixedly connected to the outer shell (1). A screw (15) is threaded onto the fixing block (14), and a locking pin (16) is fixedly connected to the side end of the screw (15). Multiple locking grooves (17) that are adapted to the locking pin (16) are evenly arranged on the outside of the sealing plug (8). A throttle (18) is fixedly connected to the side end of the screw (15).

3. The pulverized coal conveying and distribution device according to claim 1, characterized in that: The outer shell (1) is provided with multiple limiting grooves (19), and the side end of the sealing cover (4) is fixedly connected with multiple limiting rods (20), and the multiple limiting rods (20) slide in cooperation with the multiple limiting grooves (19) respectively.

4. A pulverized coal conveying and distributing device according to claim 1, characterized in that: A sealing gasket (21) is provided between the sealing cover (4) and the outer shell (1).

5. A pulverized coal conveying and distributing device according to claim 1, characterized in that: The sealing plug (8) has an annular groove (22) on its outside and a sealing ring (23) inside the annular groove (22).

6. A pulverized coal conveying and distributing device according to claim 1, characterized in that: The support assembly includes a support frame (24), a connecting seat (25) is fixedly connected to the upper side of the support frame (24), a base plate (26) is fixedly connected to the bottom end of the support frame (24), and a plurality of rollers (27) are fixedly installed on the bottom end of the base plate (26).

7. A pulverized coal conveying and distributing device according to claim 6, characterized in that: The sealing cover (4) is fixedly connected to a fixing seat (28) on its side end. The fixing seat (28) is provided with a connecting groove (29) on its side end. The connecting seat (25) is inserted into the interior of the connecting groove (29). The connecting seat (25) is threaded with a fixing screw (30) that mates with the connecting seat (25).

8. A pulverized coal conveying and distributing device according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to two support seats (31), and the bottom of each support seat (31) is fixedly connected to a mounting seat (32). The mounting seat (32) is provided with multiple mounting holes (33).

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