Coal grinding machine

Abstract

According to the technical scheme, the coal grinding machine is characterized in that the coal grinding machine comprises a smashing bin, a grinding bin is fixedly installed on the bottom face of the smashing bin, and two smashing rollers are arranged in the smashing bin; the coal ash collecting assemblies are arranged on the two sides of the grinding bin and used for collecting coal ash, and the coal ash can be sucked into a dust collecting cloth bag through mutual cooperation of the arranged grinding bin, an air pump, a connecting pipe and the dust collecting cloth bag; through mutual cooperation of the top block, the mounting column, the movable ring, the spring, the limiting plate, the limiting column, the supporting ring, the limiting groove, the fixed ring, the mounting block, the dust collecting cloth bag and the supporting ring, the dust collecting cloth bag can be taken down, and coal ash in the dust collecting cloth bag can be cleaned; and then, the worker resets the dust collecting cloth bag, so that the dust collecting cloth bag continues to collect coal ash generated during coal grinding, the coal ash collecting effect is achieved, the coal grinding effect is improved, and the worker can conveniently grind the coal.

Description

Technical Field

[0001] The utility model relates to the technical field of coal, in particular to a coal grinding machine. Background Art

[0002] Coal is known as black gold and food for industry. It has been one of the main energy sources used by the human world since the 18th century. Currently, coal is used as a fuel to generate energy when manufacturing energy. Before using coal, in order to increase the combustion rate, the coal is ground to reduce its volume and increase its area, thereby increasing the combustion area of ​​the coal and improving the utilization rate of the coal.

[0003] For example, the Chinese patent with publication number CN217164625U proposes a coal grinding and screening mechanism. Before grinding the coal block, the patent drives multiple hammer blocks to rotate through a motor to beat the coal block, so that the internal structure of the coal block is cracked, so that it is easier to obtain more coal powder when the coal block is ground between the upper grinding plate and the lower grinding plate. Then, the ground coal is screened by tilting the screen plate, which improves the efficiency and effect of grinding the coal block into coal powder. However, in this scheme, since coal ash is generated when the staff uses the upper grinding plate and the lower grinding plate to grind the coal, the coal ash may escape into the air through the feed hole, causing the surrounding staff to inhale the coal ash, which damages the health of the staff and affects the grinding of the coal. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a coal grinder, which solves the problem that coal ash is generated when workers use upper and lower grinding plates to grind coal, and the coal ash may escape into the air through the feed hole, causing surrounding workers to inhale the coal ash, thereby damaging the health of the workers and affecting the grinding of the coal.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A coal grinding machine comprises: a crushing bin, a grinding bin is fixedly installed on the bottom surface of the crushing bin, two crushing rollers are arranged inside the crushing bin; a coal ash collecting assembly, the coal ash collecting assembly is arranged on both sides of the grinding bin for collecting coal ash, the coal ash collecting assembly comprises: two mounting holes, the two mounting holes are respectively opened on both sides of the grinding bin, a connecting pipe is fixedly sleeved inside the mounting hole, an air pump is fixedly sleeved on the inner circular wall surface of the connecting pipe, a supporting ring is fixedly sleeved on the outer circular wall surface of the connecting pipe, a fixing ring is arranged on the bottom surface of the supporting ring, a dust collecting bag is fixedly installed on the bottom surface of the fixing ring, two mounting blocks are fixedly installed on the outer circular wall surface of the fixing ring, and the top surface of the mounting block A circular through hole is provided, the inner circular wall surface of the circular through hole is movably connected with a mounting column, the outer circular wall surface of the mounting column is movably connected with a movable ring, a limiting plate is fixedly installed on the top surface of the mounting column, and a limiting column is fixedly installed on the bottom surface of the limiting plate. Two limiting grooves are provided on the top surface of the support ring, the outer circular wall surface of the limiting column is movably connected with the inner circular wall surface of the limiting groove, a top block is fixedly installed on the bottom surface of the mounting column, and a spring is movably connected to the outer circular wall surface of the mounting column, one end of the spring is fixedly connected to the bottom surface of the movable ring, and the other end of the spring is fixedly connected to the top surface of the top block, a PLC controller is fixedly installed on one side of the crushing bin, and the air pump is electrically connected to the PLC controller.

[0007] In order to achieve the crushing effect of coal, as a coal grinder of the utility model, it is preferred that two first drive motors are fixedly installed on both sides of the crushing bin, two circular through holes are opened on both sides of the crushing bin, the outer circular wall surface of the driving shaft of the first drive motor is movably connected with the inner circular wall surface of the circular through hole, one end of the driving shaft of the first drive motor is fixedly connected to one end of the crushing roller, and the first drive motor is electrically connected to the PLC controller.

[0008] In order to achieve the grinding effect of coal, as a coal grinder of the utility model, it is preferred that the first grinding discs are fixedly installed on both sides of the interior of the grinding bin, a second grinding disc is arranged between the two first grinding discs, a second driving motor is fixedly installed on the bottom surface of the grinding bin, a rotating hole is opened on the bottom surface of the grinding bin, the outer circular wall surface of the driving shaft of the second driving motor is movably connected with the inner circular wall surface of the rotating hole, a connecting rod is fixedly installed on the top surface of the driving shaft of the second driving motor, the top surface of the connecting rod is fixedly connected to the bottom surface of the second grinding disc, and the second driving motor is electrically connected to the PLC controller.

[0009] In order to achieve the feeding effect on the crushing bin, as a coal grinder of the utility model, preferably, a feeding hole is opened on the top surface of the crushing bin, and a feeding hopper is fixedly sleeved inside the feeding hole.

[0010] In order to prevent the coal ash inside the crushing bin and the grinding bin from escaping into the air through the feed hopper, as a coal grinder of the utility model, it is preferred that a cover plate is provided on the top surface of the feed hopper, and two hinges are fixedly installed on one side of the feed hopper, and the cover plate is connected to the feed hopper through the hinges.

[0011] In order to achieve the best coal discharging effect, as a coal grinder of the utility model, preferably, the inner bottom surface of the grinding bin is provided with two discharging holes, and the inner part of the discharging holes is fixedly sleeved with a discharging pipe.

[0012] In order to support the crushing bin and the grinding bin, as a coal grinding machine of the utility model, preferably, a plurality of supporting legs are fixedly installed on the bottom surface of the crushing bin.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] The coal ash can be sucked into the dust bag through the cooperation of the grinding bin, air pump, connecting pipe and dust bag. The dust bag can be removed and the coal ash inside the dust bag can be cleaned through the cooperation of the top block, mounting column, movable ring, spring, limiting plate, limiting column, support ring, limiting groove, fixed ring, mounting block, dust bag and support ring. Then the staff reset the dust bag so that the dust bag continues to collect the coal ash generated during coal grinding, thereby achieving the effect of collecting coal ash, avoiding the staff from inhaling coal ash, and improving the grinding effect of coal, so that the staff can grind the coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the crushing bin structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the mounting hole structure of the utility model;

[0018] Figure 4 yes Figure 3 Schematic diagram of the local structure of A;

[0019] Figure 5 It is a schematic diagram of the structure of the second grinding disc of the utility model;

[0020] Figure 6 It is a bottom view schematic diagram of the rotary hole structure of the utility model.

[0021] Figure numerals: 1. crushing bin; 2. grinding bin; 3. supporting leg; 4. feed hole; 5. feed hopper; 6. cover plate; 7. first drive motor; 8. mounting hole; 9. crushing roller; 10. first grinding disc; 11. second grinding disc; 12. limiting groove; 13. rotating hole; 14. second drive motor; 15. discharge hole; 16. discharge pipe; 17. connecting pipe; 18. supporting ring; 19. fixing ring; 20. dust collecting bag; 21. connecting rod; 22. air pump; 23. mounting block; 24. top block; 25. mounting column; 26. movable ring; 27. spring; 28. limiting plate; 29. ​​limiting column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A coal grinding machine comprises a crushing bin 1, a grinding bin 2 is fixedly mounted on the bottom surface of the crushing bin 1, two crushing rollers 9 are arranged inside the crushing bin 1, coal ash collecting components are arranged on both sides of the grinding bin 2 for collecting coal ash, and the coal ash collecting components comprise two mounting holes 8, the two mounting holes 8 are respectively opened on both sides of the grinding bin 2, a connecting pipe 17 is fixedly sleeved inside the mounting hole 8, an air pump 22 is fixedly sleeved on the inner circumferential wall surface of the connecting pipe 17, a supporting ring 18 is fixedly sleeved on the outer circumferential wall surface of the connecting pipe 17, a fixing ring 19 is arranged on the bottom surface of the supporting ring 18, a dust collecting bag 20 is fixedly mounted on the bottom surface of the fixing ring 19, and two mounting blocks 23 are fixedly mounted on the outer circumferential wall surface of the fixing ring 19, A circular through hole is provided on the top surface of the mounting block 23, a mounting column 25 is movably sleeved on the inner circular wall of the circular through hole, a movable ring 26 is movably sleeved on the outer circular wall of the mounting column 25, a limiting plate 28 is fixedly installed on the top surface of the mounting column 25, a limiting column 29 is fixedly installed on the bottom surface of the limiting plate 28, two limiting grooves 12 are provided on the top surface of the support ring 18, the outer circular wall of the limiting column 29 is movably sleeved on the inner circular wall of the limiting groove 12, a top block 24 is fixedly installed on the bottom surface of the mounting column 25, a spring 27 is movably sleeved on the outer circular wall of the mounting column 25, one end of the spring 27 is fixedly connected to the bottom surface of the movable ring 26, and the other end of the spring 27 is fixedly connected to the top surface of the top block 24, and one side of the crushing bin 1 is fixedly mounted A PLC controller is installed, and the air pump 22 is electrically connected to the PLC controller. When the coal is ground in the grinding bin 2 through the provided grinding bin 2, coal ash will be generated. The staff starts the air pump 22, and the air pump 22 starts to suck the coal ash in the grinding bin 2 into the inside of the connecting pipe 17, and the coal ash enters the inside of the dust collecting bag 20 through the connecting pipe 17. After finishing the grinding of the coal, the staff moves the top block 24 upward, and the top block 24 moves upward to drive the mounting column 25 to move upward inside the movable ring 26, and at the same time, the spring 27 is compressed, and the mounting column 25 moves upward to also move the limiting plate 28 upward, and the limiting plate 28 moves upward to drive the limiting column 29 to move upward, and the staff moves upward to The movable top block 24 moves the limiting column 29 to the outside of the limiting groove 12 on the support ring 18. The limitation of the limiting column 29 is lost, and the staff rotates the top block 24 outward to drive the mounting column 25 and the limiting plate 28 to rotate. The staff rotates the limiting plate 28 to a position outside the support ring 18 by rotating the top block 24. Then the staff removes the fixed ring 19 and the dust bag 20 from the support ring 18 and cleans the coal ash inside the dust bag 20. Then the staff resets the dust bag 20 so that the dust bag 20 continues to collect the coal ash generated during coal grinding, thereby achieving the effect of collecting the coal ash, avoiding the staff from inhaling the coal ash, and improving the coal grinding effect. Then the staff can grind the coal.

[0025] Embodiment 2

[0026] Based on the above embodiment 1, reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 Two first drive motors 7 are fixedly installed on both sides of the crushing bin 1, and two circular through holes are provided on both sides of the crushing bin 1. The outer wall surface of the driving shaft of the first drive motor 7 is movably connected with the inner wall surface of the circular through hole, and one end of the driving shaft of the first drive motor 7 is fixedly connected with one end of the crushing roller 9. The first drive motor 7 is electrically connected with the PLC controller. Through the set crushing bin 1, the staff puts the coal into the crushing bin 1, and the staff starts the first drive motor 7. The driving shaft of the first drive motor 7 rotates to drive the crushing roller 9 to rotate. The two crushing rollers 9 rotate to crush the coal, thereby reducing the size of the coal to achieve the crushing effect of the coal. First grinding discs 10 are fixedly installed on both sides of the grinding bin 2, and a second grinding disc 11 is arranged between the two first grinding discs 10. The bottom surface of the grinding bin 2 is fixedly installed with a second drive motor 7. The second drive motor 14 is provided with a rotating hole 13 on the bottom surface of the grinding bin 2, the outer circumferential wall surface of the driving shaft of the second drive motor 14 is movably connected with the inner circumferential wall surface of the rotating hole 13, the top surface of the driving shaft of the second drive motor 14 is fixedly installed with a connecting rod 21, the top surface of the connecting rod 21 is fixedly connected with the bottom surface of the second grinding disc 11, the second drive motor 14 is electrically connected with the PLC controller, and the crushed coal inside the grinding bin 2 falls into the gap between the first grinding disc 10 and the second grinding disc 11 through the provided grinding bin 2, the staff starts the second drive motor 14, the driving shaft of the second drive motor 14 rotates to drive the connecting rod 21 to rotate, the connecting rod 21 rotates to drive the second grinding disc 11 to rotate, the second grinding disc 11 rotates to grind the coal entering the gap between the first grinding disc 10 and the second grinding disc 11, so as to achieve the grinding effect of the coal.

[0027] Embodiment 3

[0028] Based on the above embodiment 1 or 2, refer to Figure 1 , Figure 2 and Figure 3A feeding hole 4 is provided on the top surface of the crushing bin 1, and a feeding hopper 5 is fixedly sleeved inside the feeding hole 4. Through the provided feeding hopper 5, the staff pours the coal into the inside of the feeding hopper 5 so that the coal enters the inside of the crushing bin 1 through the feeding hopper 5, thereby achieving the feeding effect on the crushing bin 1. A cover plate 6 is provided on the top surface of the feeding hopper 5, and two hinges are fixedly installed on one side of the feeding hopper 5. The cover plate 6 is connected to the feeding hopper 5 through the hinges. Through the provided cover plate 6, the staff rotates the cover plate 6 outwards and pours the coal into the inside of the feeding hopper 5 , and then the staff resets the cover plate 6 so that the cover plate 6 blocks the opening of the feed hopper 5 to prevent the coal ash inside the crushing bin 1 and the grinding bin 2 from escaping into the air through the feed hopper 5. Two discharge holes 15 are provided on the inner bottom surface of the grinding bin 2, and a discharge pipe 16 is fixedly connected inside the discharge hole 15. Through the set grinding bin 2, the ground coal inside the grinding bin 2 is discharged to the outside of the grinding bin 2 through the two discharge pipes 16, thereby achieving the coal discharge effect. A plurality of support legs 3 are fixedly installed on the bottom surface of the crushing bin 1.

[0029] Working principle: Please refer to Figure 1-Figure 6 As shown, through the grinding bin 2, coal will be produced when it is ground inside the grinding bin 2. The staff starts the air pump 22, and the air pump 22 starts to suck the coal ash inside the grinding bin 2 into the inside of the connecting pipe 17. The coal ash enters the inside of the dust collecting bag 20 through the connecting pipe 17. After finishing the grinding of the coal, the staff moves the top block 24 upward. The top block 24 moves upward to drive the mounting column 25 to move upward inside the movable ring 26, and at the same time, the spring 27 is compressed. The mounting column 25 moves upward and also moves the limiting plate 28 upward. The limiting plate 28 moves upward to drive the limiting column 29 upward. The staff moves the limiting column 29 upward by moving the top block 24 upward. It moves to the outside of the limiting groove 12 on the support ring 18, and the limitation of the limiting column 29 is lost. The staff rotates the top block 24 outward to drive the mounting column 25 and the limiting plate 28 to rotate. The staff rotates the limiting plate 28 to a position outside the support ring 18 by rotating the top block 24. Then the staff removes the fixing ring 19 and the dust bag 20 from the support ring 18 and cleans the coal ash inside the dust bag 20. Then the staff resets the dust bag 20 so that the dust bag 20 continues to collect the coal ash generated during coal grinding, thereby achieving the effect of collecting the coal ash, avoiding the staff from inhaling the coal ash, and improving the coal grinding effect. Then the staff can grind the coal.

[0030] Through the provided crushing bin 1, the staff puts the coal into the crushing bin 1, and starts the first driving motor 7. The driving shaft of the first driving motor 7 rotates to drive the crushing rollers 9 to rotate. The two crushing rollers 9 rotate to crush the coal, thereby reducing the size of the coal to achieve the coal crushing effect. Through the provided grinding bin 2, the crushed coal inside the grinding bin 2 falls into the gap between the first grinding disc 10 and the second grinding disc 11. The staff starts the second driving motor 14. The driving shaft of the second driving motor 14 rotates to drive the connecting rod 21 to rotate. The connecting rod 21 rotates to drive the second grinding disc 11 to rotate. The second grinding disc 11 rotates to grind the coal entering the gap between the first grinding disc 10 and the second grinding disc 11 to achieve the coal grinding effect.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal grinding machine, characterized in that: include: A crushing bin (1), a grinding bin (2) being fixedly mounted on the bottom surface of the crushing bin (1), and two crushing rollers (9) being arranged inside the crushing bin (1); A coal ash collection component, the coal ash collection component is arranged on both sides of the grinding bin (2) and is used to collect coal ash. The coal ash collection component comprises: two mounting holes (8), the two mounting holes (8) are respectively opened on both sides of the grinding bin (2), a connecting pipe (17) is fixedly sleeved inside the mounting hole (8), an air pump (22) is fixedly sleeved on the inner circular wall surface of the connecting pipe (17), a supporting ring (18) is fixedly sleeved on the outer circular wall surface of the connecting pipe (17), a fixing ring (19) is arranged on the bottom surface of the supporting ring (18), a dust collecting bag (20) is fixedly installed on the bottom surface of the fixing ring (19), two mounting blocks (23) are fixedly installed on the outer circular wall surface of the fixing ring (19), a circular through hole is opened on the top surface of the mounting block (23), a mounting column (25) is movably sleeved on the inner circular wall surface of the circular through hole, and the mounting block (23) is fixedly sleeved on the inner circular wall surface of the circular through hole. The outer circular wall surface of the mounting column (25) is movably sleeved with a movable ring (26); a limiting plate (28) is fixedly mounted on the top surface of the mounting column (25); a limiting column (29) is fixedly mounted on the bottom surface of the limiting plate (28); two limiting grooves (12) are provided on the top surface of the support ring (18); the outer circular wall surface of the limiting column (29) is movably sleeved with the inner circular wall surface of the limiting groove (12); a top block (24) is fixedly mounted on the bottom surface of the mounting column (25); a spring (27) is movably sleeved on the outer circular wall surface of the mounting column (25); one end of the spring (27) is fixedly connected to the bottom surface of the movable ring (26); the other end of the spring (27) is fixedly connected to the top surface of the top block (24); a PLC controller is fixedly mounted on one side of the crushing bin (1); and the air pump (22) is electrically connected to the PLC controller.

2. A coal grinding machine according to claim 1, characterized in that: Two first drive motors (7) are fixedly mounted on both sides of the crushing bin (1), two circular through holes are provided on both sides of the crushing bin (1), the outer circular wall surface of the drive shaft of the first drive motor (7) is movably sleeved with the inner circular wall surface of the circular through hole, one end of the drive shaft of the first drive motor (7) is fixedly connected to one end of the crushing roller (9), and the first drive motor (7) is electrically connected to the PLC controller.

3. A coal grinding machine according to claim 1, characterized in that: First grinding discs (10) are fixedly mounted on both sides of the interior of the grinding chamber (2); a second grinding disc (11) is arranged between the two first grinding discs (10); a second drive motor (14) is fixedly mounted on the bottom surface of the grinding chamber (2); a rotating hole (13) is provided on the bottom surface of the grinding chamber (2); the outer circular wall surface of the drive shaft of the second drive motor (14) is movably connected to the inner circular wall surface of the rotating hole (13); a connecting rod (21) is fixedly mounted on the top surface of the drive shaft of the second drive motor (14); the top surface of the connecting rod (21) is fixedly connected to the bottom surface of the second grinding disc (11); and the second drive motor (14) is electrically connected to the PLC controller.

4. A coal grinding machine according to claim 1, characterized in that: A feeding hole (4) is provided on the top surface of the crushing bin (1), and a feeding hopper (5) is fixedly sleeved inside the feeding hole (4).

5. A coal grinding machine according to claim 4, characterized in that: The top surface of the feed hopper (5) is provided with a cover plate (6), and two hinges are fixedly installed on one side of the feed hopper (5), and the cover plate (6) is connected to the feed hopper (5) via the hinges.

6. A coal grinding machine according to claim 1, characterized in that: The inner bottom surface of the grinding bin (2) is provided with two discharge holes (15), and a discharge pipe (16) is fixedly sleeved inside the discharge hole (15).

7. A coal grinding machine according to claim 1, characterized in that: A plurality of supporting legs (3) are fixedly mounted on the bottom surface of the crushing bin (1).

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