Coal water slurry preparation device
By introducing temperature control, filtration, and exhaust mechanisms into the coal-water slurry preparation unit, the problems of temperature control and coal slag treatment have been solved, achieving more efficient coal-water slurry preparation and resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JINDADI CHEM IND CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional coal-water slurry preparation equipment is difficult to control the temperature, and the wastewater after preparation contains a large amount of coal slag, resulting in waste.
The temperature during the preparation process is regulated by a temperature control mechanism. After cleaning, the wastewater is discharged into the filtration mechanism for coal slag filtration, and the coal slag is dried through the exhaust mechanism, thereby improving the practicality of the equipment.
It achieves temperature control during the coal-water slurry preparation process and effective filtration of coal slag in wastewater, reducing resource waste and improving the practicality of the equipment.
Smart Images
Figure CN224388530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coal-water slurry preparation apparatus, and in particular to a coal-water slurry preparation apparatus. Background Technology
[0002] Coal-water slurry is a low-pollution, high-efficiency coal-based fluid fuel that is produced through physical processing of 65%-70% coal, 29%-1% water (including stirring blades), and approximately 1% chemical additives. It combines the combustion characteristics of coal with the fluidity of petroleum, and is hailed as a "new member" of the fuel family, as well as an important component of clean coal technology.
[0003] For example, the water-coal slurry preparation device disclosed in the utility model patent with application number CN202420293888.1 represents a type of prior art. Its main structure includes a mixing tank, a mixing cover, a motor, a fixed cover, a rotating column, a mixing blade, a limiting plate, and a limiting ring. The water-coal slurry is prepared through the cooperation of the mixing tank, mixing cover, motor, fixed cover, rotating column, mixing blade, limiting plate, and limiting ring.
[0004] Traditional coal-water slurry preparation devices struggle to control the temperature during the preparation process. Furthermore, the wastewater used for cleaning the inside of the device after the coal-water slurry is discharged contains a significant amount of coal slag, resulting in a waste of coal slag. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a coal-water slurry preparation device that, during the coal-water slurry preparation process, regulates the temperature inside the preparation mechanism by activating a temperature control mechanism, and after the coal-water slurry preparation is completed, cleans the inside of the preparation mechanism and discharges the cleaning wastewater into a filtration mechanism, thereby improving the practicality of the equipment.
[0006] This utility model discloses a coal-water slurry preparation device, comprising a preparation mechanism; it also includes a liquid supply mechanism, a stirring mechanism, a temperature control mechanism, a filtration mechanism, and an exhaust mechanism. The liquid supply mechanism is located on the right side of the preparation mechanism, the stirring mechanism is located inside the preparation mechanism, the temperature control mechanism is installed on the liquid supply mechanism, and the filtration mechanism and exhaust mechanism are both located below the preparation mechanism, with the exhaust mechanism located on the right side of the filtration mechanism. Ground coal powder is placed inside the preparation mechanism. The liquid supply mechanism discharges the coal-water slurry preparation liquid into the preparation mechanism to mix with the coal powder. The stirring mechanism is activated to stir the coal-water slurry material inside the preparation mechanism, ensuring uniform heating. During the coal-water slurry preparation process, the temperature inside the preparation mechanism is adjusted by activating the temperature control mechanism. After the coal-water slurry preparation is completed, the inside of the preparation mechanism is cleaned, and the wastewater is discharged into the filtration mechanism. The filtration mechanism is activated to filter the coal slag in the wastewater, and the exhaust mechanism is activated to dry the coal slag inside the filtration mechanism, improving the practicality of the equipment.
[0007] Preferably, the preparation mechanism includes a base, a preparation tank, a feed hopper, a discharge pipe, and a cleaning pump. The bottom end of the preparation tank is installed on the top end of the base, the bottom end of the feed hopper is installed on the top end of the preparation tank, the input end of the discharge pipe is connected to the lower part of the outer wall of the preparation tank, and a valve is installed on the output end of the discharge pipe. The bottom end of the cleaning pump is installed on the top end of the preparation tank, the input end of the cleaning pump is connected to the output end of the cleaning liquid, and the output end of the cleaning pump is connected to the top end of the preparation tank. The base supports the preparation tank. The ground powder is discharged into the preparation tank through the feed hopper, and the prepared coal-water slurry is discharged through the discharge pipe. The cleaning pump is started to discharge the cleaning liquid into the preparation tank to clean the inner wall of the preparation tank, thereby improving the practicality of the equipment.
[0008] Preferably, the liquid supply mechanism includes a metering tank, a piston, a multi-stage electric cylinder, a first support, a first pipe, and a second pipe. The piston is located inside the metering tank. The bottom end of the multi-stage electric cylinder is mounted on the top end of the piston, and the top end of the multi-stage electric cylinder is mounted on the first support. The output end of the first pipe is connected to the lower part of the outer wall of the metering tank, and a valve is installed on the output end of the first pipe. The input end of the second pipe is connected to the lower part of the outer wall of the metering tank, and a valve is installed on the input end of the second pipe. The output end of the second pipe is connected to the outer wall of the preparation tank. By contracting the multi-stage electric cylinder, the piston rises, creating a negative pressure state inside the metering tank, and the water-coal slurry preparation liquid is discharged into the metering tank through the first pipe. By extending the multi-stage electric cylinder, the piston falls, and the water-coal slurry preparation liquid in the metering tank is discharged into the preparation tank through the second pipe. The first support supports the multi-stage electric cylinder, improving the practicality of the equipment.
[0009] Preferably, the stirring mechanism includes a first motor, a reducer, a stirring shaft, multiple sets of stirring blades, multiple sets of support seats, and two sets of scrapers. The input end of the reducer is connected to the output end of the first motor, and the top end of the stirring shaft is connected to the output end of the reducer. The sides of the multiple sets of stirring blades and the multiple sets of support seats are all mounted on the stirring shaft. Springs are installed in the grooves of the multiple sets of support seats. The two sets of scrapers are respectively installed in the grooves of the multiple sets of support seats, and the multiple sets of stirring blades and the two sets of scrapers are all located inside the preparation tank. By starting the first motor and driving it through the reducer, the stirring shaft is rotated. The multiple sets of stirring blades stir the coal-water slurry material in the preparation tank. The multiple sets of support seats support the two sets of scrapers, and the two sets of scrapers stir the coal-water slurry material on the inner wall of the preparation tank, thereby improving the practicality of the equipment.
[0010] Preferably, the temperature control mechanism includes a heat exchanger, a circulating pump, a first three-way pipe, a first heater, a refrigeration box, and a second three-way pipe. The heat exchanger is installed on the outer wall of the preparation tank. The input end of the circulating pump is connected to the output end of the heat exchanger, and the output end of the circulating pump is connected to the input end of the first three-way pipe. The first three-way pipe has two sets of output ends, and valves are installed on both sets of output ends of the circulating pump. The input ends of the first heater and the refrigeration box are respectively connected to the two sets of output ends of the first three-way pipe. The output ends of the first three-way pipe and the first heater are respectively connected to the two sets of input ends of the second three-way pipe, and valves are installed on both sets of input ends of the first three-way pipe. The output end of the second three-way pipe is connected to the input end of the heat exchanger. By starting the circulating pump, the liquid in the heat exchanger is discharged into the first three-way pipe, then discharged into the first heater for heating, and then discharged into the refrigeration box for cooling. The heated and cooled liquid is discharged into the heat exchanger through the second three-way pipe, and the heat exchanger heats and cools the preparation tank, improving the practicality of the equipment.
[0011] Preferably, the filtration mechanism includes a third pipe, a drain tank, a fourth pipe, a filter barrel, a gear ring, a gear, and a second motor. The inlet end of the third pipe is connected to the outer wall of the drain pipe, and a valve is installed on the inlet end of the third pipe. The outlet end of the third pipe is connected to the top of the drain tank, and an exhaust pipe is installed on the outer wall of the drain tank. The inlet end of the fourth pipe is connected to the lower part of the outer wall of the drain tank. The lower part of the filter barrel is rotatably mounted on the bottom end of the drain tank, and a valve is installed on the lower part of the filter barrel. The inner ring of the gear ring is installed on the lower outer wall of the filter barrel, and the outer ring of the gear ring meshes with the outer ring of the gear. The inner ring of the gear is installed on the output end of the second motor. Both the gear ring and the gear are located outside the drain tank. Clean wastewater is discharged into the filter barrel through the drain tank. The second motor is started to rotate the gear, and the meshing of the gear and gear ring causes the filter barrel to rotate. The filter barrel filters the coal slag in the wastewater, and the filtered coal slag is discharged through the drain tank to the fourth pipe, improving the practicality of the equipment.
[0012] Preferably, the exhaust mechanism includes a second support, an air pump, an exhaust pipe, and a second heater. The bottom end of the air pump is installed at the top of the second support. The input end of the exhaust pipe is connected to the output end of the air pump. The exhaust pipe has multiple output ends, and these multiple output ends are located inside the drain tank. The second heater is installed on the outer wall of the input end of the exhaust pipe. The second support supports the air pump. By starting the air pump, gas is discharged into the exhaust pipe. The second heater heats the gas in the exhaust pipe. The heated gas is discharged into the filter tank through the exhaust pipe to dry the coal slag in the filter tank, thereby improving the practicality of the equipment.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the ground coal powder is placed in the preparation mechanism, the coal-water slurry preparation liquid is discharged into the preparation mechanism through the liquid supply mechanism and mixed with the coal powder, the coal-water slurry material in the preparation mechanism is stirred by activating the stirring mechanism to make it heat evenly, the temperature in the preparation mechanism is adjusted by activating the temperature control mechanism during the coal-water slurry preparation process, the inside of the preparation mechanism is cleaned after the coal-water slurry preparation is completed, the cleaning wastewater is discharged into the filtration mechanism, the coal slag in the wastewater is filtered by activating the filtration mechanism, and the coal slag in the filtration mechanism is dried by activating the exhaust mechanism, thereby improving the practicality of the equipment. Attached Figure Description
[0014] Figure 1 This is an isometric sectional view of the present invention;
[0015] Figure 2 This is an isometric schematic diagram of the preparation mechanism of this utility model;
[0016] Figure 3 This is a front cross-sectional view of the liquid supply 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 temperature control mechanism of this utility model;
[0019] Figure 6 This is a front cross-sectional view of the filter mechanism of this utility model;
[0020] Figure 7 This is an isometric schematic diagram of the exhaust mechanism of this utility model.
[0021] The attached diagram is labeled as follows: 01, preparation mechanism; 11, base; 12, preparation tank; 13, feed hopper; 14, discharge pipe; 15, cleaning pump; 02, liquid supply mechanism; 21, metering tank; 22, piston; 23, multi-stage electric cylinder; 24, first support; 25, first pipe; 26, second pipe; 03, stirring mechanism; 31, first motor; 32, reducer; 33, stirring shaft; 34, stirring blade; 35, support base; 36, scraper. 04. Temperature control mechanism; 41. Heat exchanger; 42. Circulating pump; 43. First tee pipe; 44. First heater; 45. Refrigeration box; 46. Second tee pipe; 05. Filtration mechanism; 51. Third pipe; 52. Drain tank; 53. Fourth pipe; 54. Filter canister; 55. Gear ring; 56. Gear; 57. Second motor; 06. Exhaust mechanism; 61. Second bracket; 62. Air pump; 63. Exhaust pipe; 64. Second heater. 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.
[0023] Example 1
[0024] like Figure 1 As shown, a coal-water slurry preparation device includes a preparation mechanism 01; it also includes a liquid supply mechanism 02, a stirring mechanism 03, a temperature control mechanism 04, a filtration mechanism 05, and an exhaust mechanism 06. The liquid supply mechanism 02 is located to the right of the preparation mechanism 01, the stirring mechanism 03 is located inside the preparation mechanism 01, the temperature control mechanism 04 is installed on the liquid supply mechanism 02, and the filtration mechanism 05 and the exhaust mechanism 06 are both located below the preparation mechanism 01, with the exhaust mechanism 06 located to the right of the filtration mechanism 05.
[0025] The ground coal powder is placed in the preparation mechanism 01. The coal-water slurry preparation liquid is discharged into the preparation mechanism 01 through the liquid supply mechanism 02 and mixed with the coal powder. The coal-water slurry material in the preparation mechanism 01 is stirred by the stirring mechanism 03 to ensure uniform heating. During the coal-water slurry preparation process, the temperature in the preparation mechanism 01 is adjusted by the temperature control mechanism 04. After the coal-water slurry preparation is completed, the inside of the preparation mechanism 01 is cleaned. The cleaning wastewater is discharged into the filtration mechanism 05. The coal slag in the wastewater is filtered by the filtration mechanism 05. The coal slag in the filtration mechanism 05 is dried by the exhaust mechanism 06, thereby improving the practicality of the equipment.
[0026] like Figure 2As shown, the preparation mechanism 01 includes a base 11, a preparation tank 12, a feed hopper 13, a discharge pipe 14, and a cleaning pump 15. The bottom end of the preparation tank 12 is installed on the top end of the base 11, the bottom end of the feed hopper 13 is installed on the top end of the preparation tank 12, the input end of the discharge pipe 14 is connected to the lower part of the outer wall of the preparation tank 12, and a valve is provided on the output end of the discharge pipe 14. The bottom end of the cleaning pump 15 is installed on the top end of the preparation tank 12, the input end of the cleaning pump 15 is connected to the output end of the cleaning liquid, and the output end of the cleaning pump 15 is connected to the top end of the preparation tank 12.
[0027] like Figure 3 As shown, the liquid supply mechanism 02 includes a metering tank 21, a piston 22, a multi-stage electric cylinder 23, a first support 24, a first pipe 25, and a second pipe 26. The piston 22 is located inside the metering tank 21. The bottom end of the multi-stage electric cylinder 23 is mounted on the top end of the piston 22, and the top end of the multi-stage electric cylinder 23 is mounted on the first support 24. The output end of the first pipe 25 is connected to the lower part of the outer wall of the metering tank 21, and a valve is provided on the output end of the first pipe 25. The input end of the second pipe 26 is connected to the lower part of the outer wall of the metering tank 21, and a valve is provided on the input end of the second pipe 26. The output end of the second pipe 26 is connected to the outer wall of the preparation tank 12.
[0028] like Figure 4 As shown, the stirring mechanism 03 includes a first motor 31, a reducer 32, a stirring shaft 33, multiple sets of stirring blades 34, multiple sets of support seats 35, and two sets of scrapers 36. The input end of the reducer 32 is connected to the output end of the first motor 31, and the top end of the stirring shaft 33 is connected to the output end of the reducer 32. The side ends of the multiple sets of stirring blades 34 and the multiple sets of support seats 35 are all mounted on the stirring shaft 33. Springs are provided in the grooves of the multiple sets of support seats 35. The two sets of scrapers 36 are respectively installed in the grooves of the multiple sets of support seats 35, and the multiple sets of stirring blades 34 and the two sets of scrapers 36 are all located inside the preparation tank 12.
[0029] like Figure 5 As shown, the temperature control mechanism 04 includes a heat exchanger 41, a circulating pump 42, a first three-way pipe 43, a first heater 44, a refrigeration box 45, and a second three-way pipe 46. The heat exchanger 41 is installed on the outer wall of the preparation tank 12. The input end of the circulating pump 42 is connected to the output end of the heat exchanger 41, and the output end of the circulating pump 42 is connected to the input end of the first three-way pipe 43. The first three-way pipe 43 is provided with two sets of output ends, and valves are provided on both sets of output ends of the circulating pump 42. The input ends of the first heater 44 and the refrigeration box 45 are respectively connected to the two sets of output ends of the first three-way pipe 43. The output ends of the first three-way pipe 43 and the first heater 44 are respectively connected to the two sets of input ends of the second three-way pipe 46. Valves are provided on both sets of input ends of the first three-way pipe 43. The output end of the second three-way pipe 46 is connected to the input end of the heat exchanger 41.
[0030] The base 11 supports the preparation tank 12. The ground powder is discharged into the preparation tank 12 through the feed hopper 13. The prepared coal-water slurry is discharged through the discharge pipe 14. The cleaning pump 15 is activated to discharge cleaning liquid into the preparation tank 12 to clean the inner wall of the preparation tank 12. The piston 22 is raised by contracting the multi-stage electric cylinder 23, creating a negative pressure state in the metering tank 21, and the coal-water slurry preparation liquid is discharged into the metering tank 21 through the first pipe 25. The piston 22 is lowered by extending the multi-stage electric cylinder 23, and the coal-water slurry preparation liquid in the metering tank 21 is discharged into the preparation tank 12 through the second pipe 26. The first bracket 24 supports the multi-stage electric cylinder 23. The first motor 31 is activated. Driven by the reducer 32, the stirring shaft 33 rotates, and multiple sets of stirring blades 34 stir the coal-water slurry material in the preparation tank 12. Multiple sets of support seats 35 support two sets of scrapers 36, which stir the coal-water slurry material on the inner wall of the preparation tank 12. The circulating pump 42 is started to discharge the liquid in the heat exchanger 41 into the first three-way pipe 43, and then into the first heater 44 for heating. The liquid is then discharged into the refrigeration box 45 for cooling. The heated and cooled liquid is discharged into the heat exchanger 41 through the second three-way pipe 46, and then into the preparation tank 12 for heating and cooling, thus improving the practicality of the equipment.
[0031] Example 2
[0032] like Figure 6 and Figure 7 As shown, based on Embodiment 1, it also includes a filtration mechanism 05 and an exhaust mechanism 06. The filtration mechanism 05 includes a third pipe 51, a drain tank 52, a fourth pipe 53, a filter tank 54, a gear ring 55, a gear 56, and a second motor 57. The input end of the third pipe 51 is connected to the outer wall of the discharge pipe 14, and a valve is provided on the input end of the third pipe 51. The output end of the third pipe 51 is connected to the top of the drain tank 52, and an exhaust pipe is provided on the outer wall of the drain tank 52. The input end of the fourth pipe 53 is connected to the lower part of the outer wall of the drain tank 52. The lower part of the filter tank 54 is rotatably mounted on the bottom end of the drain tank 52, and a valve is provided on the lower part of the filter tank 54. The inner ring of the gear ring 55 is installed on the lower outer wall of the filter barrel 54. The outer ring of the gear ring 55 meshes with the outer ring of the gear 56. The inner ring of the gear 56 is installed on the output end of the second motor 57. Both the gear ring 55 and the gear 56 are located outside the drain barrel 52. The exhaust mechanism 06 includes a second bracket 61, an air pump 62, an exhaust pipe 63, and a second heater 64. The bottom end of the air pump 62 is installed on the top end of the second bracket 61. The input end of the exhaust pipe 63 is connected to the output end of the air pump 62. The exhaust pipe 63 is provided with multiple sets of output ends, and the multiple sets of output ends of the exhaust pipe 63 are respectively located inside the drain barrel 52. The second heater 64 is installed on the outer wall of the input end of the exhaust pipe 63.
[0033] Cleaning wastewater is discharged into filter tank 54 via drain tank 52. The second motor 57 is started to rotate gear 56, which in turn rotates filter tank 54 through meshing with gear ring 55. The filter tank 54 filters the coal slag in the wastewater. The filtered coal slag is discharged through drain tank 52 to the fourth pipe 53. The second support 61 supports air pump 62. The air pump 62 is started to discharge gas into exhaust pipe 63. The second heater 64 heats the gas in exhaust pipe 63. The heated gas is discharged into filter tank 54 through exhaust pipe 63 to dry the coal slag in filter tank 54, thus improving the practicality of the equipment.
[0034] like Figures 1 to 7 As shown, this utility model discloses a coal-water slurry preparation device. During operation, the base 11 first supports the preparation tank 12. The ground powder is discharged into the preparation tank 12 via the feed hopper 13. The prepared coal-water slurry is discharged through the discharge pipe 14. The cleaning pump 15 is activated to discharge cleaning liquid into the preparation tank 12, cleaning the inner wall of the tank. Then, the multi-stage electric cylinder 23 is contracted to raise the piston 22, creating a negative pressure state inside the metering tank 21, discharging the coal-water slurry preparation liquid through the first pipe 25 to the metering tank 21. Inside the measuring tank 21, the piston 22 is lowered by extending the multi-stage electric cylinder 23, causing the coal-water slurry preparation liquid in the measuring tank 21 to be discharged into the preparation tank 12 through the second pipe 26. The first support 24 supports the multi-stage electric cylinder 23. Then, by starting the first motor 31 and driving the reducer 32, the stirring shaft 33 is rotated. Multiple sets of stirring blades 34 stir the coal-water slurry material in the preparation tank 12. Multiple sets of support seats 35 support two sets of scrapers 36, which stir the preparation tank 12. The water-coal slurry material on the inner wall is stirred, and then the circulating pump 42 is started to discharge the liquid in the heat exchanger 41 into the first three-way pipe 43. The liquid is then discharged into the first heater 44 for heating through the first three-way pipe 43, and then discharged into the refrigeration box 45 for cooling. The heated and cooled liquid is discharged into the heat exchanger 41 through the second three-way pipe 46. The heat exchanger 41 heats and cools the preparation tank 12. After that, the cleaning wastewater is discharged into the filter tank 54 through the drain tank 52. The gear 56 is rotated by starting the second motor 57. The filter barrel 54 rotates due to the meshing of gear 56 and gear ring 55, filtering the coal slag in the wastewater. The filtered coal slag is discharged through the drain barrel 52 to the fourth pipe 53. Finally, the second support 61 supports the air pump 62. By starting the air pump 62, the gas is discharged into the exhaust pipe 63. The gas in the exhaust pipe 63 is heated by the second heater 64. The heated gas is discharged into the filter barrel 54 through the exhaust pipe 63 to dry the coal slag in the filter barrel 54, thus improving the practicality of the equipment.
[0035] The cleaning pump 15, multi-stage electric cylinder 23, first motor 31, reducer 32, heat exchanger 41, circulating pump 42, first heater 44, refrigeration box 45, second motor 57 and air pump 62 of this utility model are purchased from the market. 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.
[0036] The main function achieved by this utility model is as follows: during the preparation of coal-water slurry, the temperature inside the preparation mechanism 01 is adjusted by activating the temperature control mechanism 04. After the coal-water slurry is prepared, the inside of the preparation mechanism 01 is cleaned, and the wastewater from the cleaning is discharged into the filtration mechanism 05. The coal slag in the wastewater is filtered by activating the filtration mechanism 05, thereby improving the practicality of the equipment.
[0037] 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 coal-water slurry preparation apparatus, comprising a preparation mechanism (01); characterized in that, It also includes a liquid supply mechanism (02), a stirring mechanism (03), a temperature control mechanism (04), a filtration mechanism (05), and an exhaust mechanism (06). The liquid supply mechanism (02) is located to the right of the preparation mechanism (01), the stirring mechanism (03) is located inside the preparation mechanism (01), the temperature control mechanism (04) is installed on the liquid supply mechanism (02), the filtration mechanism (05) and the exhaust mechanism (06) are both located below the preparation mechanism (01), and the exhaust mechanism (06) is located to the right of the filtration mechanism (05).
2. The water-coal slurry preparation apparatus as described in claim 1, characterized in that, The preparation mechanism (01) includes a base (11), a preparation tank (12), a feed hopper (13), a discharge pipe (14), and a cleaning pump (15). The bottom end of the preparation tank (12) is installed on the top end of the base (11), the bottom end of the feed hopper (13) is installed on the top end of the preparation tank (12), the input end of the discharge pipe (14) is connected to the lower part of the outer wall of the preparation tank (12), and a valve is provided on the output end of the discharge pipe (14). The bottom end of the cleaning pump (15) is installed on the top end of the preparation tank (12), the input end of the cleaning pump (15) is connected to the output end of the cleaning liquid, and the output end of the cleaning pump (15) is connected to the top end of the preparation tank (12).
3. The water-coal slurry preparation apparatus as described in claim 2, characterized in that, The liquid supply mechanism (02) includes a metering tank (21), a piston (22), a multi-stage electric cylinder (23), a first support (24), a first pipe (25), and a second pipe (26). The piston (22) is located inside the metering tank (21). The bottom end of the multi-stage electric cylinder (23) is installed on the top end of the piston (22). The top end of the multi-stage electric cylinder (23) is installed on the first support (24). The output end of the first pipe (25) is connected to the lower part of the outer wall of the metering tank (21). A valve is provided on the output end of the first pipe (25). The input end of the second pipe (26) is connected to the lower part of the outer wall of the metering tank (21). A valve is provided on the input end of the second pipe (26). The output end of the second pipe (26) is connected to the outer wall of the preparation tank (12).
4. The water-coal slurry preparation apparatus as described in claim 2, characterized in that, The stirring mechanism (03) includes a first motor (31), a reducer (32), a stirring shaft (33), multiple sets of stirring blades (34), multiple sets of support seats (35), and two sets of scrapers (36). The input end of the reducer (32) is connected to the output end of the first motor (31), the top end of the stirring shaft (33) is connected to the output end of the reducer (32), the side ends of the multiple sets of stirring blades (34) and the multiple sets of support seats (35) are all installed on the stirring shaft (33), springs are provided in the grooves of the multiple sets of support seats (35), and the two sets of scrapers (36) are respectively installed in the grooves of the multiple sets of support seats (35). The multiple sets of stirring blades (34) and the two sets of scrapers (36) are all located inside the preparation tank (12).
5. The water-coal slurry preparation apparatus as described in claim 2, characterized in that, The temperature control mechanism (04) includes a heat exchanger (41), a circulating pump (42), a first three-way pipe (43), a first heater (44), a refrigeration box (45), and a second three-way pipe (46). The heat exchanger (41) is installed on the outer wall of the preparation tank (12). The input end of the circulating pump (42) is connected to the output end of the heat exchanger (41). The output end of the circulating pump (42) is connected to the input end of the first three-way pipe (43). The first three-way pipe (43) is provided with two sets of output ends, and valves are provided on both sets of output ends of the circulating pump (42). The input ends of the first heater (44) and the refrigeration box (45) are respectively connected to the two sets of output ends of the first three-way pipe (43). The output ends of the first three-way pipe (43) and the first heater (44) are respectively connected to the two sets of input ends of the second three-way pipe (46). Valves are provided on both sets of input ends of the first three-way pipe (43). The output end of the second three-way pipe (46) is connected to the input end of the heat exchanger (41).
6. The water-coal slurry preparation apparatus as described in claim 2, characterized in that, The filtration mechanism (05) includes a third pipe (51), a drain tank (52), a fourth pipe (53), a filter barrel (54), a gear ring (55), a gear (56), and a second motor (57). The input end of the third pipe (51) is connected to the outer wall of the discharge pipe (14), and a valve is provided on the input end of the third pipe (51). The output end of the third pipe (51) is connected to the top of the drain tank (52), and an exhaust pipe is provided on the outer wall of the drain tank (52). The fourth pipe (53)... The input end of the filter barrel (54) is connected to the lower part of the outer wall of the drain barrel (52). The lower part of the filter barrel (54) is rotatably installed at the bottom of the drain barrel (52). A valve is provided at the lower part of the filter barrel (54). The inner ring of the toothed ring (55) is installed on the lower outer wall of the filter barrel (54). The outer ring of the toothed ring (55) meshes with the outer ring of the gear (56). The inner ring of the gear (56) is installed on the output end of the second motor (57). Both the toothed ring (55) and the gear (56) are located outside the drain barrel (52).
7. The water-coal slurry preparation apparatus as described in claim 6, characterized in that, The exhaust mechanism (06) includes a second bracket (61), an air pump (62), an exhaust pipe (63), and a second heater (64). The bottom end of the air pump (62) is installed on the top end of the second bracket (61). The input end of the exhaust pipe (63) is connected to the output end of the air pump (62). The exhaust pipe (63) is provided with multiple sets of output ends, and the multiple sets of output ends of the exhaust pipe (63) are respectively located inside the drain tank (52). The second heater (64) is installed on the outer wall of the input end of the exhaust pipe (63).