Efficient rotary kiln pulverized coal grinding and screening machine device

Abstract

The utility model relates to the technical field of powder concentrators, in particular to an efficient rotary kiln pulverized coal grinding and screening machine device which comprises a box body, a feeding hopper is fixedly arranged at the top end of the box body, a mounting groove is formed in one side in the box body, a fan is fixedly arranged in the mounting groove, and an exhaust port is fixedly formed in the top end of one side of the box body. The position of the telescopic pipe can be effectively controlled, pulverized coal is evenly guided into the surface of the screening plate through the telescopic pipe, the screening plate makes full contact with the pulverized coal, the overall screening effect of equipment is improved, meanwhile, the fan is arranged, impurities on the surface of the pulverized coal can be effectively removed, the overall production quality of the equipment is improved, and the production cost is reduced. And meanwhile, the screen plate can be conveniently disassembled, workers can conveniently and regularly clean the surface of the screen plate, and the surface of the screen plate is kept clean and tidy.

Description

Technical Field

[0001] The utility model relates to the technical field of powder selecting machines, in particular to a high-efficiency rotary kiln coal powder grinding and screening powder selecting machine device. Background Art

[0002] With the improvement of cement technology and equipment level, the cement clinker output of the kiln has increased significantly, and the coal powder consumption has increased accordingly. At present, the kiln clinker output has reached 3200t / d, the raw coal output of the coal mill is about 35.2t / h, and the coal powder fineness is about 8% (R80). It is expected that the clinker output will reach 7000t / d after the kiln transformation, and a powder selector is needed to screen the coal powder before production.

[0003] The public specification of the utility model patent application in China is CN217250685U. Although it avoids the problem that the existing guide static blades are in a fixed connection state, the circulation rate is increased in turn, and the powder selection efficiency is reduced, the screening equipment cannot be regularly cleaned or replaced during use, and it is difficult to remove impurities in the coal powder. Therefore, an efficient rotary kiln coal powder grinding and screening machine device is proposed. Utility Model Content

[0004] The utility model aims to provide an efficient rotary kiln coal powder grinding and screening machine device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An efficient rotary kiln coal powder grinding and screening device comprises a box body, a feed hopper is fixedly arranged on the top of the box body, a mounting groove is opened on one side of the box body, a fan is fixedly arranged inside the mounting groove, an exhaust port is fixedly arranged on the top of one side of the box body, a mounting plate is fixedly arranged inside the box body, a moving mechanism is arranged inside the box body, a screening mechanism is arranged inside the box body, a side door is hingedly arranged on one side of the box body, and a handle is fixedly arranged on one end of the side door.

[0007] Preferably, the moving mechanism comprises a threaded rod, a motor, a moving block and a telescopic tube, the threaded rod is arranged inside the box body through a rotating shaft, a motor is installed on one side of the box body through a mounting seat, the output shaft end of the motor is transmission-connected with the threaded rod, a moving block is movably arranged on the outer side of the threaded rod through a threaded hole, a telescopic tube is fixedly arranged on one end of the moving block, and one end of the telescopic tube is fixedly connected to the mounting plate;

[0008] Preferably, a guide rod is fixedly arranged above the threaded rod inside the box, and the guide rod is movably connected to the moving block;

[0009] Preferably, the screening mechanism comprises a screening plate, a fixing block, a through slot, a fixing slot and a fixing mechanism, the screening plate is arranged inside the box, fixing blocks are fixedly arranged at both ends of the screening plate, a through slot is opened inside the fixing block, fixing slots are opened on both sides of the box, and a fixing mechanism is arranged inside the fixing slot;

[0010] Preferably, the fixing mechanism comprises a counterweight slot, a counterweight block, a pressure rod and a pull plate, the top of the fixing slot is provided with a counterweight slot, the counterweight block is arranged inside the counterweight slot, a pressure rod is fixedly arranged at the bottom end of the counterweight block, one side of the pressure rod is inclined, a pull plate is fixedly arranged at the top of one side of the pressure rod, and one end of the pull plate passes through the counterweight slot and is outside the box body;

[0011] Preferably, positioning plates are fixedly provided on both sides of the box below the screening plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Pour the coal powder to be screened from the feed hopper into the box. At this time, the fan can blow the fallen coal powder to separate the lighter impurities on the surface from the coal powder and discharge them from the exhaust port. Then start the motor to drive the threaded rod to rotate. At this time, under the action of the guide rod, the moving block can move horizontally along the surface of the threaded rod, thereby driving the telescopic tube to move horizontally inside the box. This setting can effectively control the position of the telescopic tube, so that the telescopic tube can evenly guide the coal powder to the surface of the screening plate, so that the screening plate and the coal powder are fully in contact, thereby improving the overall screening effect of the equipment. At the same time, it is equipped with a fan to effectively remove impurities on the surface of the coal powder, thereby improving the overall production quality of the equipment.

[0014] 2. By pulling the pull plate upwards, when the manpower is greater than the gravity of the counterweight block, the counterweight block can be moved upward, driving the pressure rod at the bottom to move upward until the pressure rod leaves the through slot, canceling the fixing effect between the fixing block and the box body, and the screening plate can be easily removed. This setting facilitates the disassembly of the screening plate, and facilitates the staff to regularly clean the surface of the screening plate to keep the surface of the screening plate clean and tidy. It also facilitates the staff to disassemble and replace the screening plate, so that they can replace it according to the use of the screening plate to maintain the overall stable screening effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall front view structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall front view and cross-sectional structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0018] Figure 4 For this utility model Figure 2 A magnified schematic diagram of point B in the middle.

[0019] In the figure: 1. box body; 2. feed hopper; 3. mounting slot; 4. fan; 5. exhaust port; 6. mounting plate; 7. side door; 8. handle; 9. threaded rod; 10. motor; 11. moving block; 12. telescopic tube; 13. guide rod; 14. screening plate; 15. fixing block; 16. through slot; 17. fixing slot; 18. counterweight slot; 19. counterweight block; 20. pressure rod; 21. pull plate; 22. positioning plate. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0022] An efficient rotary kiln coal powder grinding and screening device comprises a box body 1, a feed hopper 2 is fixedly arranged at the top of the box body 1, a mounting groove 3 is opened at one side of the box body 1, a fan 4 is fixedly arranged inside the mounting groove 3, an exhaust port 5 is fixedly arranged at the top of one side of the box body 1, a mounting plate 6 is fixedly arranged inside the box body 1, a moving mechanism is arranged inside the box body 1, a screening mechanism is arranged inside the box body 1, a side door 7 is hingedly arranged at one side of the box body 1, and a handle 8 is fixedly arranged at one end of the side door 7;

[0023] Through the above solution, with the help of the side door 7 and the handle 8, it is convenient for the staff to take out the pulverized coal after screening inside the box body 1, and it is also convenient for the staff to disassemble and clean the screening plate 14.

[0024] In this embodiment, preferably, the moving mechanism includes a threaded rod 9, a motor 10, a moving block 11 and a telescopic tube 12. The threaded rod 9 is arranged inside the box body 1 through a rotating shaft, and the motor 10 is installed on one side of the box body 1 through a mounting seat. The output shaft end of the motor 10 is transmission-connected to the threaded rod 9, and the moving block 11 is movably arranged on the outer side of the threaded rod 9 through a threaded hole. The telescopic tube 12 is fixedly arranged at one end of the moving block 11, and one end of the telescopic tube 12 is fixedly connected to the mounting plate 6;

[0025] Through the above scheme, under the action of the motor 10, the moving distance of the moving block 11 can be conveniently controlled, and under the action of the telescopic tube 12, the coal powder can be guided and the coal powder can be evenly dropped on the surface of the screening plate 14, fully contacting with the screening plate 14, thereby improving the screening effect;

[0026] In this embodiment, preferably, a guide rod 13 is fixedly provided above the threaded rod 9 inside the box body 1, and the guide rod 13 is movably connected to the moving block 11;

[0027] Through the above solution, under the action of the guide rod 13, the moving block 11 can be limited and guided, so that the moving block 11 can move horizontally along the surface of the threaded rod 9;

[0028] In this embodiment, preferably, the screening mechanism includes a screening plate 14, a fixing block 15, a through groove 16, a fixing groove 17 and a fixing mechanism. The screening plate 14 is arranged inside the box body 1, and the fixing blocks 15 are fixedly arranged at both ends of the screening plate 14. The through groove 16 is opened inside the fixing block 15, and the fixing grooves 17 are opened on both sides of the box body 1. The fixing mechanism is arranged inside the fixing groove 17;

[0029] Through the above scheme, the coal powder can be screened under the action of the screening plate 14;

[0030] In this embodiment, preferably, the fixing mechanism includes a counterweight slot 18, a counterweight block 19, a pressure rod 20 and a pull plate 21. The top of the fixing slot 17 is provided with a counterweight slot 18, a counterweight block 19 is arranged inside the counterweight slot 18, a pressure rod 20 is fixedly arranged at the bottom end of the counterweight block 19, one side of the pressure rod 20 is inclined, and a pull plate 21 is fixedly arranged at the top of one side of the pressure rod 20, and one end of the pull plate 21 passes through the counterweight slot 18 on the outside of the box body 1;

[0031] Through the above scheme, the fixing block 15 can be fixed so that the screening plate 14 can be fixed inside the box body 1, and because one side of the pressure rod 20 is inclined, the fixing block 15 can be moved along the inclined surface of the pressure rod 20 until it moves to a suitable position, and the pressure rod 20 is inserted into the through groove 16 under the action of the counterweight block 19, so that it is convenient for the staff to install the screening plate 14;

[0032] In this embodiment, preferably, positioning plates 22 are fixedly provided on both sides of the interior of the box body 1 below the screening plate 14;

[0033] Through the above scheme, the screening plate 14 is positioned so that the screening plate 14 is installed at the same position each time, and the screening plate 14 is supported so that the screening plate 14 can be stably maintained inside the box 1.

[0034] An efficient rotary kiln coal powder grinding and screening device of the present embodiment pours the coal powder to be screened from the feed hopper 2 into the interior of the box body 1. At this time, under the action of the fan 4, the fallen coal powder can be blown to separate the lighter impurities on the surface from the coal powder and discharge them from the exhaust port 5. Then the motor 10 is started to drive the threaded rod 9 to rotate. At this time, under the action of the guide rod 13, the moving block 11 can be moved horizontally along the surface of the threaded rod 9, thereby driving the telescopic tube 12 to move horizontally inside the box body 1. This setting can effectively control the position of the telescopic tube 12, so that the telescopic tube 12 can evenly guide the coal powder to the surface of the screening plate 14, so that the screening plate 14 is in full contact with the coal powder, thereby improving the overall screening effect of the equipment. At the same time, the fan 4 is equipped to effectively remove impurities on the surface of the coal powder, thereby improving the overall production quality of the equipment.

[0035] By pulling the pull plate 21 upwards, when the manpower is greater than the gravity of the counterweight block 19, the counterweight block 19 can be moved upward, driving the pressure rod 20 at the bottom to move upward until the pressure rod 20 leaves the through groove 16, and the fixing effect between the fixing block 15 and the box body 1 is cancelled, and the screening plate 14 can be easily removed. This arrangement facilitates the disassembly operation of the screening plate 14, and facilitates the staff to regularly clean the surface of the screening plate 14 to keep the surface of the screening plate 14 clean and tidy. It also facilitates the staff to disassemble and replace the screening plate 14, so that they can replace it according to the usage of the screening plate 14 to maintain the overall stable screening effect of the equipment.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An efficient rotary kiln coal powder grinding and screening machine device, comprising a housing (1), characterized in that: A feed hopper (2) is fixedly arranged at the top of the box body (1), a mounting groove (3) is provided on one side of the box body (1), a fan (4) is fixedly arranged inside the mounting groove (3), an exhaust port (5) is fixedly arranged at the top of one side of the box body (1), a mounting plate (6) is fixedly arranged inside the box body (1), a moving mechanism is arranged inside the box body (1), a screening mechanism is arranged inside the box body (1), a side door (7) is hingedly arranged on one side of the box body (1), and a handle (8) is fixedly arranged at one end of the side door (7).

2. An efficient rotary kiln coal powder grinding and screening machine device according to claim 1, characterized in that: The moving mechanism comprises a threaded rod (9), a motor (10), a moving block (11) and a telescopic tube (12); the threaded rod (9) is arranged inside the box (1) via a rotating shaft; the motor (10) is mounted on one side of the box (1) via a mounting seat; the output shaft end of the motor (10) is transmission-connected to the threaded rod (9); the moving block (11) is movably arranged on the outer side of the threaded rod (9) via a threaded hole; one end of the moving block (11) is fixedly arranged with the telescopic tube (12); and one end of the telescopic tube (12) is fixedly connected to the mounting plate (6).

3. An efficient rotary kiln coal powder grinding and screening machine device according to claim 2, characterized in that: A guide rod (13) is fixedly arranged above the threaded rod (9) inside the box (1), and the guide rod (13) is movably connected to the moving block (11).

4. The efficient rotary kiln coal powder grinding and screening machine device according to claim 1 is characterized in that: The screening mechanism comprises a screening plate (14), a fixing block (15), a through groove (16), a fixing groove (17) and a fixing mechanism. The screening plate (14) is arranged inside the box body (1), the fixing blocks (15) are fixedly arranged at both ends of the screening plate (14), the through groove (16) is provided inside the fixing block (15), the fixing grooves (17) are provided on both sides inside the box body (1), and the fixing mechanism is provided inside the fixing grooves (17).

5. The efficient rotary kiln coal powder grinding and screening machine device according to claim 4 is characterized in that: The fixing mechanism comprises a counterweight groove (18), a counterweight block (19), a pressure rod (20) and a pull plate (21); the counterweight groove (18) is provided at the top end of the fixing groove (17); the counterweight block (19) is arranged inside the counterweight groove (18); the pressure rod (20) is fixedly arranged at the bottom end of the counterweight block (19); one side of the pressure rod (20) is inclined; the pull plate (21) is fixedly arranged at the top end of one side of the pressure rod (20); one end of the pull plate (21) passes through the counterweight groove (18) and is outside the box (1).

6. The efficient rotary kiln coal powder grinding and screening machine device according to claim 4 is characterized in that: Positioning plates (22) are fixedly arranged on both sides of the interior of the box body (1) below the screening plate (14).

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