A lignite coal water slurry additive batching device

Abstract

The utility model relates to the technical fields of coal water slurry additive batching equipment, especially to a lignite pulping coal water slurry additive batching equipment, which is characterized in that: after mixing, the discharge mechanism is rotated to the top of the feeding mechanism, the coal water slurry additive in the feeding mechanism is discharged through the extension of the discharge mechanism, and after the discharge is completed, the cleaning liquid is discharged into the feeding mechanism by starting the cleaning mechanism, the inner wall of the feeding mechanism is cleaned by starting the cleaning mechanism, the cleaning mechanism cleans the stirring mechanism and the discharge mechanism, and the practicability of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of coal-water slurry additive batching device, and in particular to a coal-water slurry additive batching device for lignite slurry preparation. Background Technology

[0002] Lignite-water slurry is a coal-based fluid fuel made from lignite, water, and a small amount of additives. Developed in the 1970s, coal-water slurry is a new type of fuel that replaces oil with coal. It is produced by mixing treated lignite with water in a specific ratio, adding appropriate additives, and then grinding and stirring to create a slurry-like fuel with a certain concentration, viscosity, and fluidity.

[0003] For example, the water-coal slurry additive batching device disclosed in the utility model patent application number CN202322485797.6 represents a type of prior art whose main structure includes a box, a mixing tank, a through trough, a fixing plate, a feed pipe, a first motor, a solenoid valve, a second motor, a connecting rod, and casters. The batching of water-coal slurry additives is achieved through the cooperation of the box, mixing tank, through trough, fixing plate, feed pipe, first motor, solenoid valve, second motor, connecting rod, and casters.

[0004] Because coal-water slurry additives have a certain degree of adhesion, traditional coal-water slurry additive batching devices have difficulty in completely removing the additives from the inner wall of the batching device, and it is also difficult to thoroughly clean the coal-water slurry additive batching device after use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a water-coal slurry additive batching device for lignite slurry preparation. After mixing, the discharge mechanism is rotated above the feeding mechanism, and the water-coal slurry additive batching material in the feeding mechanism is discharged through the extension of the discharge mechanism. After discharge, the cleaning mechanism is activated to discharge cleaning liquid into the feeding mechanism, and the cleaning mechanism is activated to clean the inner wall of the feeding mechanism. The cleaning mechanism cleans the stirring mechanism and the discharge mechanism, thereby improving the practicality of the equipment.

[0006] This utility model discloses a water-coal slurry additive batching device for lignite pulping, comprising a feeding mechanism; it also includes a rotating mechanism, a stirring mechanism, a discharging mechanism, a cleaning mechanism, and a purging mechanism. The feeding mechanism is installed at the front of the rotating mechanism, and the stirring, discharging, and purging mechanisms are all installed on the rotating mechanism and distributed around the rotating mechanism. The purging mechanism is located on the left side of the rotating mechanism. By activating the feeding mechanism, the water-coal slurry additive is discharged into the feeding mechanism in proportion. By activating the rotating mechanism, the stirring, discharging, and purging mechanisms are rotated, and the stirring mechanism is rotated to above the feeding mechanism. The stirring mechanism is then activated to stir the water-coal slurry additive in the feeding mechanism to ensure thorough mixing. After mixing, the discharging mechanism is rotated to above the feeding mechanism, and the discharging mechanism extends to discharge all the water-coal slurry additive in the feeding mechanism. After discharge, the cleaning mechanism is activated to discharge cleaning liquid into the feeding mechanism, and the purging mechanism is activated to clean the inner wall of the feeding mechanism. The stirring and discharging mechanisms are then discharged into the purging mechanism, which cleans the stirring and discharging mechanisms, improving the practicality of the equipment.

[0007] Preferably, the feeding mechanism includes a metering barrel, a first piston, a first electric cylinder, a support, a feeding pipe, a discharging pipe, and a mixing barrel. The first piston is installed inside the metering barrel, the bottom end of the first electric cylinder is installed at the bottom end of the first piston, and the top end of the first electric cylinder is installed on the support. The output end of the feeding pipe is connected to the lower part of the outer wall of the metering barrel, and a valve is provided on the output end of the feeding pipe. The input end of the discharging pipe is connected to the lower part of the outer wall of the metering barrel, and the output end of the discharging pipe is connected to the mixing barrel, and a valve is provided on the output end of the discharging pipe. A discharge pipe is provided on the outer wall of the mixing barrel. By contracting the first electric cylinder, the first piston rises, creating a negative pressure state inside the metering barrel, causing the feeding pipe to discharge the coal-water slurry additive materials into the metering barrel. By extending the first electric cylinder, the first piston descends, causing the coal-water slurry additive materials in the metering barrel to be discharged into the mixing barrel through the discharging pipe. The support supports the first electric cylinder, improving the practicality of the equipment.

[0008] Preferably, the rotating mechanism includes a base, a support rod, a first gear ring, a first gear, and a first motor. The bottom end of the support rod is rotatably mounted on the top end of the base. Multiple sets of support rods are provided on the top end of the support rod. The inner ring of the first gear ring is installed on the lower part of the support rod, and the outer ring of the first gear ring meshes with the outer ring of the first gear. The inner ring of the first gear is installed on the output end of the first motor. The base supports the support rod. By starting the first motor, the first gear is rotated, and the support rod is rotated through the meshing of the first gear and the first gear ring. The mounting rods at the top end of the support rod support the stirring mechanism, the discharge mechanism, and the cleaning mechanism, respectively, thereby improving the practicality of the equipment.

[0009] Preferably, the stirring mechanism includes two sets of first multi-stage electric cylinders, a first cover plate, a stirring shaft, a second motor, multiple sets of stirring blades, and two sets of scrapers. The tops of the two sets of first multi-stage electric cylinders are respectively mounted on the mounting rods at the top of the support rods. The top of the first cover plate is mounted on the bottom of the two sets of first multi-stage electric cylinders. The upper part of the stirring shaft is rotatably mounted on the first cover plate. The output end of the second motor is connected to the top of the stirring shaft. Multiple sets of stirring blades are respectively mounted on the stirring shaft, and two sets of scrapers are respectively mounted on the stirring shaft, with the outer ends of the two sets of scrapers contacting the inner wall of the mixing tank. By extending the two sets of first multi-stage electric cylinders, the stirring shaft is lowered into the mixing tank. By starting the second motor, the stirring shaft is rotated, causing the multiple sets of stirring blades to stir the coal-water slurry additive in the mixing tank, and the two sets of scrapers to stir the coal-water slurry additive on the inner wall of the mixing tank, thereby improving the practicality of the equipment.

[0010] Preferably, the discharge mechanism includes a second electric cylinder and a second piston. The top of the second electric cylinder is mounted on the mounting rod at the top of the support rod, and the top of the second piston is mounted on the bottom of the second electric cylinder. By extending the second electric cylinder, the second piston is lowered, and all the water-coal slurry additives in the mixing tank are discharged, thereby improving the practicality of the equipment.

[0011] Preferably, the cleaning mechanism includes a cleaning liquid pump, a three-way pipe, a spray pipe, a cleaning tank, and a drain pipe. The input end of the cleaning liquid pump is connected to the output end of the cleaning liquid, and the input end of the three-way pipe is connected to the output end of the cleaning liquid pump. The three-way pipe has two sets of output ends, each equipped with a valve. The input end of the spray pipe is connected to one set of output ends of the three-way pipe and is located on the inner wall of the cleaning tank. The input end of the drain pipe is connected to the outer wall of the cleaning tank. By starting the cleaning liquid pump, the cleaning liquid is discharged through the three-way pipe into the cleaning mechanism and the spray pipe, respectively. The liquid is then discharged through the spray pipe to clean the stirring mechanism and the discharge mechanism. The wastewater in the cleaning tank is discharged through the drain pipe, improving the practicality of the equipment.

[0012] Preferably, the cleaning mechanism includes two sets of third multi-stage electric cylinders, a second cover plate, a cleaning brush, a second gear ring, a second gear, and a third motor. The tops of the two sets of third multi-stage electric cylinders are respectively mounted on the mounting rods at the top of the support rods. The top of the second cover plate is mounted on the bottom of the two sets of third multi-stage electric cylinders. The upper part of the cleaning brush is rotatably mounted on the second cover plate. The inner ring of the second gear ring is mounted on the upper part of the cleaning brush. The outer ring of the second gear ring meshes with the outer ring of the second gear. The inner ring of the second gear is mounted on the output end of the third motor. By extending the two sets of third multi-stage electric cylinders respectively, the cleaning brush is lowered into the mixing tank. By starting the third motor, the second gear is rotated. The second gear and the second gear ring mesh to rotate the cleaning brush. The cleaning brush cleans the inner wall of the mixing tank, improving the practicality of the equipment.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by starting the feeding mechanism, the coal-water slurry additive ingredients are discharged into the feeding mechanism in proportion. By starting the rotating mechanism, the stirring mechanism, the discharge mechanism, and the cleaning mechanism are rotated. The rotating mechanism rotates the stirring mechanism to above the feeding mechanism, and the stirring mechanism stirs the coal-water slurry additive in the feeding mechanism to ensure thorough mixing. After mixing, the discharge mechanism is rotated to above the feeding mechanism, and the coal-water slurry additive ingredients in the feeding mechanism are discharged completely through the extended discharge mechanism. After discharge, the cleaning mechanism discharges the cleaning liquid into the feeding mechanism, and the cleaning mechanism cleans the inner wall of the feeding mechanism. The stirring mechanism and the discharge mechanism are then discharged into the cleaning mechanism, which cleans the stirring mechanism and the discharge mechanism, thereby improving the practicality of the equipment. Attached Figure Description

[0014] Figure 1 This is an isometric schematic diagram of this utility model;

[0015] Figure 2 This is a right-side sectional view of the feeding mechanism of this utility model;

[0016] Figure 3 This is an isometric schematic diagram of the rotating mechanism of this utility model;

[0017] Figure 4 This is an isometric schematic diagram of the stirring mechanism of this utility model;

[0018] Figure 5 This is an isometric schematic diagram of the discharge mechanism of this utility model;

[0019] Figure 6 This is an isometric sectional view of the cleaning mechanism of this utility model;

[0020] Figure 7 This is an isometric schematic diagram of the cleaning mechanism of this utility model.

[0021] The attached diagram is labeled as follows: 01, feeding mechanism; 11, metering tank; 12, first piston; 13, first electric cylinder; 14, support; 15, feeding pipe; 16, discharge pipe; 17, batching tank; 02, rotating mechanism; 21, base; 22, support rod; 23, first gear ring; 24, first gear; 25, first motor; 03, stirring mechanism; 31, first multi-stage electric cylinder; 32, first cover plate; 33, stirring shaft; 34, second motor; 35, stirring blade; 36, scraper; 04, discharge mechanism; 41, second electric cylinder; 42, second piston; 05, cleaning mechanism; 51, cleaning liquid pump; 52, tee pipe; 53, spray pipe; 54, cleaning tank; 55, sewage pipe; 06, cleaning mechanism; 61, third multi-stage electric cylinder; 62, second cover plate; 63, cleaning brush; 64, second gear ring; 65, second gear; 66, third motor. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0023] like Figure 1 As shown, a lignite slurry additive batching device includes a feeding mechanism 01; it also includes a rotating mechanism 02, a stirring mechanism 03, a discharging mechanism 04, a washing mechanism 05, and a cleaning mechanism 06. The feeding mechanism 01 is installed at the front of the rotating mechanism 02. The stirring mechanism 03, the discharging mechanism 04, and the cleaning mechanism 06 are all installed on the rotating mechanism 02, and the stirring mechanism 03, the discharging mechanism 04, and the cleaning mechanism 06 are distributed around the rotating mechanism 02. The cleaning mechanism 05 is located on the left side of the rotating mechanism 02.

[0024] By activating the feeding mechanism 01, the coal-water slurry additive ingredients are discharged into the feeding mechanism 01 according to the specified proportions. By activating the rotating mechanism 02, the stirring mechanism 03, the discharge mechanism 04, and the cleaning mechanism 06 are rotated. The rotating mechanism 02 rotates the stirring mechanism 03 above the feeding mechanism 01, and the stirring mechanism 03 stirs the coal-water slurry additive ingredients in the feeding mechanism 01 to ensure thorough mixing. After mixing, the discharge mechanism 04 is rotated above the feeding mechanism 01, and the extended discharge mechanism 04 discharges all the coal-water slurry additive ingredients from the feeding mechanism 01. After discharge, the cleaning mechanism 05 discharges the cleaning liquid into the feeding mechanism 01, and the cleaning mechanism 06 cleans the inner wall of the feeding mechanism 01. The stirring mechanism 03 and the discharge mechanism 04 are then discharged into the cleaning mechanism 05, which cleans the stirring mechanism 03 and the discharge mechanism 04, thereby improving the practicality of the equipment.

[0025] like Figure 2 As shown, the feeding mechanism 01 includes a metering barrel 11, a first piston 12, a first electric cylinder 13, a bracket 14, a feeding pipe 15, a discharge pipe 16, and a mixing barrel 17. The first piston 12 is installed inside the metering barrel 11. The bottom end of the first electric cylinder 13 is installed on the bottom end of the first piston 12, and the top end of the first electric cylinder 13 is installed on the bracket 14. The output end of the feeding pipe 15 is connected to the lower part of the outer wall of the metering barrel 11, and a valve is provided on the output end of the feeding pipe 15. The input end of the discharge pipe 16 is connected to the lower part of the outer wall of the metering barrel 11, and the output end of the discharge pipe 16 is connected to the mixing barrel 17. A valve is provided on the output end of the discharge pipe 16, and a discharge pipe is provided on the outer wall of the mixing barrel 17.

[0026] like Figure 3 As shown, the rotating mechanism 02 includes a base 21, a support rod 22, a first gear ring 23, a first gear 24, and a first motor 25. The bottom end of the support rod 22 is rotatably mounted on the top end of the base 21. The top end of the support rod 22 is provided with multiple sets of support rods. The inner ring of the first gear ring 23 is installed on the lower part of the support rod 22. The outer ring of the first gear ring 23 meshes with the outer ring of the first gear 24. The inner ring of the first gear 24 is installed on the output end of the first motor 25.

[0027] By retracting the first electric cylinder 13, the first piston 12 rises, creating a negative pressure state inside the metering tank 11. This allows the feed pipe 15 to discharge the coal-water slurry additive materials into the metering tank 11. By extending the first electric cylinder 13, the first piston 12 descends, allowing the coal-water slurry additive materials in the metering tank 11 to be discharged into the mixing tank 17 via the discharge pipe 16. The bracket 14 supports the first electric cylinder 13, and the base 21 supports the support rod 22. By starting the first motor 25, the first gear 24 rotates. The first gear 24 meshes with the first gear ring 23, causing the support rod 22 to rotate. The mounting rod at the top of the support rod 22 supports the stirring mechanism 03, the discharge mechanism 04, and the cleaning mechanism 06, improving the practicality of the equipment. Example 2

[0028] like Figure 4 and Figure 5 As shown, based on Embodiment 1, it also includes a stirring mechanism 03 and a discharge mechanism 04. The stirring mechanism 03 includes two sets of first multi-stage electric cylinders 31, a first cover plate 32, a stirring shaft 33, a second motor 34, multiple sets of stirring blades 35, and two sets of scrapers 36. The top ends of the two sets of first multi-stage electric cylinders 31 are respectively mounted on the mounting rods at the top of the support rod 22. The top end of the first cover plate 32 is mounted on the bottom end of the two sets of first multi-stage electric cylinders 31. The upper part of the stirring shaft 33 is rotatably mounted on the first cover plate 32. The output end of the second motor 34 is connected to the top end of the stirring shaft 33. Multiple sets of stirring blades 35 are respectively mounted on the stirring shaft 33. Two sets of scrapers 36 are respectively mounted on the stirring shaft 33, and the outer ends of the two sets of scrapers 36 are respectively in contact with the inner wall of the mixing tank 17. The discharge mechanism 04 includes a second electric cylinder 41 and a second piston 42. The top end of the second electric cylinder 41 is mounted on the mounting rods at the top of the support rod 22, and the top end of the second piston 42 is mounted on the bottom end of the second electric cylinder 41.

[0029] By extending the two sets of first multi-stage electric cylinders 31 respectively, the stirring shaft 33 is lowered into the mixing tank 17. By starting the second motor 34, the stirring shaft 33 is rotated, and the multiple sets of stirring blades 35 stir the coal-water slurry additive in the mixing tank 17. The two sets of scrapers 36 stir the coal-water slurry additive on the inner wall of the mixing tank 17. By extending the second electric cylinder 41, the second piston 42 is lowered, and all the coal-water slurry additive in the mixing tank 17 is discharged, improving the practicality of the equipment. Example 3

[0030] like Figure 6 and Figure 7 As shown, based on Embodiment 1, it also includes a cleaning mechanism 05 and a cleaning mechanism 06. The cleaning mechanism 05 includes a cleaning liquid pump 51, a three-way pipe 52, a spray pipe 53, a cleaning tank 54, and a drain pipe 55. The input end of the cleaning liquid pump 51 is connected to the output end of the cleaning liquid. The input end of the three-way pipe 52 is connected to the output end of the cleaning liquid pump 51. The three-way pipe 52 is provided with two sets of output ends, and each set of output ends of the three-way pipe 52 is provided with a valve. The input end of the spray pipe 53 is connected to one set of output ends of the three-way pipe 52. The spray pipe 53 is located on the inner wall of the cleaning tank 54. The input end of the drain pipe 55 is connected to the inner wall of the cleaning tank 54. The outer wall is connected; the cleaning mechanism 06 includes two sets of third multi-stage electric cylinders 61, a second cover plate 62, a cleaning brush 63, a second gear ring 64, a second gear 65, and a third motor 66. The tops of the two sets of third multi-stage electric cylinders 61 are respectively mounted on the mounting rods at the top of the support rod 22. The top of the second cover plate 62 is mounted on the bottom of the two sets of third multi-stage electric cylinders 61. The upper part of the cleaning brush 63 is rotatably mounted on the second cover plate 62. The inner ring of the second gear ring 64 is mounted on the upper part of the cleaning brush 63. The outer ring of the second gear ring 64 meshes with the outer ring of the second gear 65. The inner ring of the second gear 65 is mounted on the output end of the third motor 66.

[0031] By activating the cleaning fluid pump 51, the cleaning fluid is discharged through the three-way pipe 52 into the cleaning mechanism 06 and the spray pipe 53 respectively. The cleaning fluid is discharged through the spray pipe 53 to clean the stirring mechanism 03 and the discharge mechanism 04. The cleaning wastewater in the cleaning tank 54 is discharged through the drain pipe 55. By extending the two sets of third multi-stage electric cylinders 61 respectively, the cleaning brush 63 is lowered into the mixing tank 17. By activating the third motor 66, the second gear 65 is rotated. The second gear 65 and the second gear ring 64 mesh to rotate the cleaning brush 63. The cleaning brush 63 cleans the inner wall of the mixing tank 17, improving the practicality of the equipment.

[0032] like Figures 1 to 7As shown, this utility model discloses a coal-water slurry additive batching device for lignite pulping. During operation, the first piston 12 rises by retracting the first electric cylinder 13, creating a negative pressure state inside the metering tank 11. This allows the feed pipe 15 to discharge the coal-water slurry additive material into the metering tank 11. Then, by extending the first electric cylinder 13, the first piston 12 descends, allowing the coal-water slurry additive material in the metering tank 11 to be discharged into the batching tank 17 via the discharge pipe 16. The bracket 14 supports the first electric cylinder 13, and the base 21 supports the support rod 22. The first motor 25 rotates the first gear 24, which, through meshing with the first gear ring 23, rotates the support rod 22. The mounting rod at the top of the support rod 22 supports the stirring mechanism 03, the discharge mechanism 04, and the cleaning mechanism 06. Finally, by extending the two sets of first multi-stage electric cylinders 31, the stirring mechanism is activated. The shaft 33 descends into the mixing tank 17. The second motor 34 is started to rotate the mixing shaft 33, causing multiple sets of mixing blades 35 to stir the coal-water slurry additive in the mixing tank 17. Two sets of scrapers 36 stir the coal-water slurry additive on the inner wall of the mixing tank 17. Then, the second piston 42 is lowered by extending the second electric cylinder 41 to discharge all the coal-water slurry additive in the mixing tank 17. After that, the second piston 42 is lowered by extending the second electric cylinder 41 to discharge all the coal-water slurry additive in the mixing tank 17. Finally, the cleaning brush 63 is lowered into the mixing tank 17 by extending two sets of third multi-stage electric cylinders 61. The third motor 66 is started to rotate the second gear 65. The second gear 65 meshes with the second gear ring 64 to rotate the cleaning brush 63, which cleans the inner wall of the mixing tank 17, improving the practicality of the equipment.

[0033] The first motor 25, the second motor 34, the cleaning fluid pump 51, and the third motor 66 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0034] The main functions achieved by this utility model are as follows: after mixing, by rotating the discharge mechanism 04 above the feeding mechanism 01, the water-coal slurry additive ingredients in the feeding mechanism 01 are completely discharged by extending the discharge mechanism 04. After discharge, the cleaning mechanism 05 is activated to discharge the cleaning liquid into the feeding mechanism 01. The cleaning mechanism 06 is activated to clean the inner wall of the feeding mechanism 01. The cleaning mechanism 05 cleans the stirring mechanism 03 and the discharge mechanism 04, thereby improving the practicality of the equipment.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for batching water-coal slurry additives for lignite pulping, comprising a feeding mechanism (01); characterized in that, It also includes a rotating mechanism (02), a stirring mechanism (03), a discharge mechanism (04), a cleaning mechanism (05), and a cleaning mechanism (06). The feeding mechanism (01) is installed at the front of the rotating mechanism (02). The stirring mechanism (03), the discharge mechanism (04), and the cleaning mechanism (06) are all installed on the rotating mechanism (02), and the stirring mechanism (03), the discharge mechanism (04), and the cleaning mechanism (06) are distributed around the rotating mechanism (02). The cleaning mechanism (05) is located on the left side of the rotating mechanism (02).

2. The lignite slurry additive batching device as described in claim 1, characterized in that, The feeding mechanism (01) includes a metering barrel (11), a first piston (12), a first electric cylinder (13), a bracket (14), a feeding pipe (15), a discharge pipe (16), and a batching barrel (17). The first piston (12) is installed inside the metering barrel (11). The bottom end of the first electric cylinder (13) is installed on the bottom end of the first piston (12). The top end of the first electric cylinder (13) is installed on the bracket (14). The output end of the feeding pipe (15) is connected to the lower part of the outer wall of the metering barrel (11). A valve is provided on the output end of the feeding pipe (15). The input end of the discharge pipe (16) is connected to the lower part of the outer wall of the metering barrel (11). The output end of the discharge pipe (16) is connected to the batching barrel (17). A valve is provided on the output end of the discharge pipe (16). A discharge pipe is provided on the outer wall of the batching barrel (17).

3. The lignite slurry preparation water-coal slurry additive batching device as described in claim 1, characterized in that, The rotating mechanism (02) includes a base (21), a support rod (22), a first gear ring (23), a first gear (24), and a first motor (25). The bottom end of the support rod (22) is rotatably mounted on the top end of the base (21). Multiple sets of support rods are provided on the top end of the support rod (22). The inner ring of the first gear ring (23) is installed on the lower part of the support rod (22). The outer ring of the first gear ring (23) meshes with the outer ring of the first gear (24). The inner ring of the first gear (24) is installed on the output end of the first motor (25).

4. The lignite slurry preparation water-coal slurry additive batching device as described in claim 3, characterized in that, The stirring mechanism (03) includes two sets of first multi-stage electric cylinders (31), a first cover plate (32), a stirring shaft (33), a second motor (34), multiple sets of stirring blades (35), and two sets of scrapers (36). The tops of the two sets of first multi-stage electric cylinders (31) are respectively mounted on the mounting rods at the top of the support rod (22). The tops of the first cover plate (32) are mounted on the bottoms of the two sets of first multi-stage electric cylinders (31). The upper part of the stirring shaft (33) is rotatably mounted on the first cover plate (32). The output end of the second motor (34) is connected to the top of the stirring shaft (33). Multiple sets of stirring blades (35) are respectively mounted on the stirring shaft (33). Two sets of scrapers (36) are respectively mounted on the stirring shaft (33), and the outer ends of the two sets of scrapers (36) are respectively in contact with the inner wall of the mixing tank (17).

5. The lignite slurry preparation water-coal slurry additive batching device as described in claim 3, characterized in that, The discharge mechanism (04) includes a second electric cylinder (41) and a second piston (42). The top of the second electric cylinder (41) is mounted on the mounting rod at the top of the support rod (22), and the top of the second piston (42) is mounted on the bottom of the second electric cylinder (41).

6. The lignite slurry additive batching device as described in claim 1, characterized in that, The cleaning mechanism (05) includes a cleaning liquid pump (51), a three-way pipe (52), a spray pipe (53), a cleaning tank (54), and a drain pipe (55). The input end of the cleaning liquid pump (51) is connected to the output end of the cleaning liquid. The input end of the three-way pipe (52) is connected to the output end of the cleaning liquid pump (51). The three-way pipe (52) is provided with two sets of output ends. Each set of output ends of the three-way pipe (52) is provided with a valve. The input end of the spray pipe (53) is connected to one set of output ends of the three-way pipe (52). The spray pipe (53) is located on the inner wall of the cleaning tank (54). The input end of the drain pipe (55) is connected to the outer wall of the cleaning tank (54).

7. The lignite slurry additive batching device as described in claim 3, characterized in that, The cleaning mechanism (06) includes two sets of third multi-stage electric cylinders (61), a second cover plate (62), a cleaning brush (63), a second gear ring (64), a second gear (65), and a third motor (66). The tops of the two sets of third multi-stage electric cylinders (61) are respectively mounted on the mounting rods at the top of the support rod (22). The top of the second cover plate (62) is mounted on the bottom of the two sets of third multi-stage electric cylinders (61). The upper part of the cleaning brush (63) is rotatably mounted on the second cover plate (62). The inner ring of the second gear ring (64) is mounted on the upper part of the cleaning brush (63). The outer ring of the second gear ring (64) meshes with the outer ring of the second gear (65). The inner ring of the second gear (65) is mounted on the output end of the third motor (66).

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