Material return prevention device of rotary kiln

Abstract

The utility model relates to the technical field of rotary kilns, in particular to a material return prevention device of a rotary kiln. According to the technical scheme, the device comprises a fixing box, a rotary kiln, a rotating rod and a first pneumatic valve, a workbench is fixed to the lower surface of the rotary kiln, a fixing rod is fixed to the lower surface of the workbench, supporting legs are fixed to the lower surface of the fixing box and fixed to the upper surface of the workbench, and an outer rod is fixed to the outer end face of one side of the fixing box; an inner rod is movably inserted into the outer end face of one side of the outer rod, a push plate is fixed to the outer end face of one side of the inner rod, a fixing plate is fixed to the inner wall of the fixing box, filtering holes are formed in the fixing plate, the outer end face of one side of the fixing box communicates with a discharging pipe, and the outer end face of one side of the discharging pipe communicates with a first pneumatic valve. The outer end face of one side of the first pneumatic valve communicates with a fixing pipe. According to the utility model, the accuracy of the quantity of kiln-entering materials can be ensured, and the phenomenon that part of materials return to a warehouse when entering the kiln is prevented, so that the kiln-entering machine hour is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln material return prevention device. Background Art

[0002] China's cement industry is an important basic industry. In recent years, China's cement industry has maintained a relatively high growth rate.

[0003] The prior art discloses a rotary kiln feeding and pushing device and rotary kiln equipment of CN209068972U, which relates to the field of metallurgical technology. The rotary kiln feeding and pushing device comprises: a motor, a turntable, a pin shaft, a rocker rod, a connecting rod, a piston push plate and a piston outer cylinder; the motor is arranged outside the kiln tail of the rotary kiln, the motor is connected to the turntable and one end of the pin shaft in sequence, the other end of the pin shaft is rotatably connected to one end of the rocker rod, the other end of the rocker rod is connected to one end of the connecting rod, the connecting rod passes through the side wall of the kiln tail of the rotary kiln and extends into the piston outer cylinder, the other end of the connecting rod is connected to the piston push plate, one end of the piston outer cylinder is fixedly arranged in the side wall of the kiln tail of the rotary kiln, the other end of the piston outer cylinder is connected to the feed pipe of the rotary kiln, and is arranged opposite to the feed port of the rotary kiln cylinder, the rotary kiln feeding and pushing device can increase the filling rate of the material in the rotary kiln without stopping the rotary kiln, and can effectively improve the output of the rotary kiln.

[0004] Cement burning is an important part of cement production, and each process requires precise control. In case of emergency, in order to ensure product production, there is a situation where raw materials are directly fed into the kiln from the mill, but during the process of raw materials entering the kiln, some materials are returned to the warehouse, affecting the time of entering the kiln. Utility Model Content

[0005] The utility model aims to provide a rotary kiln material return prevention device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary kiln anti-backflow device, comprising a fixed box, a rotary kiln, a rotating rod and a first pneumatic valve, a workbench is fixed to the lower surface of the rotary kiln, and a fixed rod is fixed to the lower surface of the workbench, an outer rod is fixed to one side outer end surface of the fixed box, and a support rod is fixed to one side outer end surface of the fixed box, a fixed plate is fixed to the inner wall of the fixed box, and one side outer end surface of the fixed box is connected to a discharge pipe, one side outer end surface of the discharge pipe is connected to the first pneumatic valve, and one side outer end surface of the first pneumatic valve is connected to a fixed pipe, and the fixed pipe is connected to the rotary kiln.

[0007] When using a rotary kiln anti-return device in the technical solution, after the cement is ground inside the fixed box, the first pneumatic valve is opened, and the cement enters the fixed pipe through the discharge pipe, and then enters the rotary kiln through the fixed pipe. If it is necessary to reverse the storage, the connecting pipe is connected to the reverse storage, and the second pneumatic valve is opened. The cement can be reversed through the connecting pipe. The first pneumatic valve and the second pneumatic valve are both connected to the control system through a signal line. The second pneumatic valve is closed when the material enters the kiln, and the first pneumatic valve is closed when the material is reversed, so as to ensure the accuracy of the amount of material entering the kiln, prevent the phenomenon of partial material returning to the storage when entering the kiln, thereby improving the time of entering the kiln;

[0008] The fixed box is provided with a sealing cover, which is opened to add cement into the fixed box, and the cement enters the grinding plate and the fixed plate through the feed trough. The grinding plate rotates under the action of the power device, and the grinding plate drives the rotating rod to rotate, and the grinding plate can grind the cement. The ground cement enters the bottom end of the fixed box through the filter hole. The outer rod drives the inner rod to move under the action of the power device, and the inner rod drives the push plate to move, and the push plate can push the cement, so that the cement enters the discharge pipe. The support rod drives the installation rod to move under the action of the power device, and the installation rod drives the support plate to move, and the support plate can push the cement, so that the cement enters the discharge pipe.

[0009] Preferably, the outer end surface of one side of the outer rod is movably connected with the inner rod, and the outer end surface of one side of the inner rod is fixed with a push plate. By arranging the inner rod and the push plate on one side of the outer rod, cement can be pushed easily.

[0010] Preferably, filter holes are provided inside the fixing plate, and a rotating rod is rotatably connected to the upper surface of the fixing plate. By providing the filter holes inside the fixing plate, cement can be easily filtered.

[0011] Preferably, a milling plate is fixed on the upper surface of the rotating rod, and a feed trough is provided inside the milling plate. By arranging the milling plate and the feed trough on the upper surface of the rotating rod, cement can be easily ground.

[0012] Preferably, the lower surface of the fixed box is fixed with support legs, and the support legs are fixed to the upper surface of the workbench. By arranging the support legs on the lower surface of the fixed box, it is convenient to support the fixed box.

[0013] Preferably, the front surface of the discharge pipe is connected to a second pneumatic valve, and the front surface of the second pneumatic valve is connected to a connecting pipe. By arranging the second pneumatic valve and the connecting pipe on the front surface of the discharge pipe, it is convenient to reverse the storage.

[0014] Preferably, a mounting rod is movably inserted into the outer end surface of one side of the support rod, and a support plate is fixed to the outer end surface of one side of the mounting rod. By arranging the mounting rod and the support plate on one side of the support rod, cement can be pushed more easily.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model achieves the desired effect by arranging a discharge pipe, a first pneumatic valve and a second pneumatic valve. After the cement is ground inside the fixed box, the first pneumatic valve is opened, and the cement enters the fixed pipe through the discharge pipe, and then enters the rotary kiln through the fixed pipe. If destocking is required, the connecting pipe is connected to the destocking, and the second pneumatic valve is opened. The cement can be destocked through the connecting pipe. The first pneumatic valve and the second pneumatic valve are both connected to the control system through a signal line. The second pneumatic valve is closed when the material enters the kiln, and the first pneumatic valve is closed when the material is destocked, so as to ensure the accuracy of the amount of material entering the kiln and prevent the phenomenon of partial material returning to the warehouse when entering the kiln, thereby improving the time of entering the kiln.

[0017] 2. The utility model achieves the effect of facilitating the grinding of cement by arranging a fixed box, a rolling plate and a pushing plate. The fixed box is provided with a sealing cover, the sealing cover is opened, cement is added into the fixed box, the cement enters the rolling plate and the fixed plate through the feeding trough, the rolling plate rotates under the action of the power device, the rolling plate drives the rotating rod to rotate, the rolling plate can grind the cement, and the ground cement enters the bottom end of the fixed box through the filter hole, the outer rod drives the inner rod to move under the action of the power device, the inner rod drives the pushing plate to move, the pushing plate can push the cement, and the cement enters the discharge pipe conveniently, the support rod drives the mounting rod to move under the action of the power device, the mounting rod drives the supporting plate to move, the supporting plate can push the cement, and the cement enters the discharge pipe conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 2 It is an enlarged structural schematic diagram of the fixing plate of the utility model;

[0020] Figure 3 It is an enlarged structural schematic diagram of the discharge pipe of the utility model;

[0021] Figure 4 It is a schematic diagram of the main structure of the utility model.

[0022] In the figure: 1. outer rod; 2. push plate; 3. inner rod; 4. fixed box; 5. fixed plate; 6. discharge pipe; 7. support leg; 8. rotary kiln; 9. workbench; 10. fixed rod; 11. rolling plate; 12. feed trough; 13. rotating rod; 14. filter hole; 15. first pneumatic valve; 16. fixed pipe; 17. second pneumatic valve; 18. connecting pipe; 19. support plate; 20. mounting rod; 21. support rod. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1

[0025] See also Figures 1 to 4 The utility model provides an embodiment: a rotary kiln anti-backflow device, comprising a fixed box 4, a rotary kiln 8, a rotating rod 13 and a first pneumatic valve 15, a workbench 9 is fixed to the lower surface of the rotary kiln 8, and a fixed rod 10 is fixed to the lower surface of the workbench 9, a supporting leg 7 is fixed to the lower surface of the fixed box 4, and the supporting leg 7 is fixed to the upper surface of the workbench 9, an outer end surface of one side of the fixed box 4 is connected with a discharge pipe 6, an outer end surface of one side of the discharge pipe 6 is connected with a first pneumatic valve 15, and an outer end surface of one side of the first pneumatic valve 15 is connected with a fixed pipe 16, the fixed pipe 16 is connected with the rotary kiln 8, a front surface of the discharge pipe 6 is connected with a second pneumatic valve 17, and a front surface of the second pneumatic valve 17 is connected with a connecting pipe 18.

[0026] Of course, as is well known to those skilled in the art, the outer rod 1, rotary kiln 8, rolling plate 11, first pneumatic valve 15, second pneumatic valve 17 and support rod 21 of the utility model also need to be provided with a power device to enable them to work normally, and as is well known to those skilled in the art, the provision of the power is commonplace, and they all belong to conventional means or common knowledge, and will not be elaborated here, and those skilled in the art can make any optional selections according to their needs or convenience.

[0027] A rotary kiln anti-backflow device based on Example 1, after the cement is ground inside the fixed box 4, the first pneumatic valve 15 is opened, and the cement enters the fixed pipe 16 through the discharge pipe 6, and then enters the rotary kiln 8 through the fixed pipe 16. If it is necessary to reverse the storage, the connecting pipe 18 is connected to the reverse storage, and the second pneumatic valve 17 is opened. The cement can be reversed through the connecting pipe 18. The first pneumatic valve 15 and the second pneumatic valve 17 are both connected to the control system through a signal line. The second pneumatic valve 17 is closed when the material enters the kiln, and the first pneumatic valve 15 is closed when the material is reversed, so as to ensure the accuracy of the amount of material entering the kiln, prevent the phenomenon of partial material returning to the storage when entering the kiln, thereby improving the time of entering the kiln.

[0028] Embodiment 2

[0029] like Figure 1-Figure 4As shown, a rotary kiln anti-backflow device proposed by the utility model, compared with the first embodiment, this embodiment also includes a fixed box 4, a rotary kiln 8, a rotating rod 13 and a first pneumatic valve 15, an outer rod 1 is fixed to one side outer end surface of the fixed box 4, an inner rod 3 is movably inserted into one side outer end surface of the outer rod 1, and a push plate 2 is fixed to one side outer end surface of the inner rod 3, a support rod 21 is fixed to one side outer end surface of the fixed box 4, a mounting rod 20 is movably inserted into one side outer end surface of the support rod 21, and a support plate 19 is fixed to one side outer end surface of the mounting rod 20, a fixed plate 5 is fixed to the inner wall of the fixed box 4, a filter hole 14 is opened inside the fixed plate 5, and the upper surface of the fixed plate 5 is rotatably connected to the rotating rod 13, a grinding plate 11 is fixed to the upper surface of the rotating rod 13, and a feeding trough 12 is opened inside the grinding plate 11.

[0030] In this embodiment, the fixed box 4 is provided with a sealing cover, which is opened and cement is added to the fixed box 4. The cement enters the grinding plate 11 and the fixed plate 5 through the feed trough 12. The grinding plate 11 rotates under the action of the power device, and the grinding plate 11 drives the rotating rod 13 to rotate. The grinding plate 11 can grind the cement, and the ground cement enters the bottom end of the fixed box 4 through the filter hole 14. The outer rod 1 drives the inner rod 3 to move under the action of the power device, and the inner rod 3 drives the push plate 2 to move. The push plate 2 can push the cement to facilitate the cement to enter the discharge pipe 6. The support rod 21 drives the mounting rod 20 to move under the action of the power device, and the mounting rod 20 drives the support plate 19 to move. The support plate 19 can push the cement to facilitate the cement to enter the discharge pipe 6.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rotary kiln material backflow prevention device, comprising a fixed box (4), a rotary kiln (8), a rotating rod (13) and a first pneumatic valve (15), characterized in that: A workbench (9) is fixed to the lower surface of the rotary kiln (8), and a fixing rod (10) is fixed to the lower surface of the workbench (9); an outer rod (1) is fixed to one outer end surface of the fixing box (4), and a support rod (21) is fixed to one outer end surface of the fixing box (4); a fixing plate (5) is fixed to the inner wall of the fixing box (4), and one outer end surface of the fixing box (4) is connected to a discharge pipe (6); one outer end surface of the discharge pipe (6) is connected to a first pneumatic valve (15), and one outer end surface of the first pneumatic valve (15) is connected to a fixing pipe (16), and the fixing pipe (16) is connected to the rotary kiln (8).

2. The rotary kiln material return prevention device according to claim 1, characterized in that: An inner rod (3) is movably inserted into an outer end surface on one side of the outer rod (1), and a push plate (2) is fixed to an outer end surface on one side of the inner rod (3).

3. The rotary kiln material return prevention device according to claim 1, characterized in that: A filter hole (14) is provided inside the fixing plate (5), and a rotating rod (13) is rotatably connected to the upper surface of the fixing plate (5).

4. The rotary kiln material return prevention device according to claim 1, characterized in that: A rolling plate (11) is fixed on the upper surface of the rotating rod (13), and a feeding trough (12) is provided inside the rolling plate (11).

5. The rotary kiln material return prevention device according to claim 1, characterized in that: The lower surface of the fixed box (4) is fixed with a supporting leg (7), and the supporting leg (7) is fixed on the upper surface of the workbench (9).

6. The rotary kiln material return prevention device according to claim 1, characterized in that: The front surface of the discharge pipe (6) is connected to a second pneumatic valve (17), and the front surface of the second pneumatic valve (17) is connected to a connecting pipe (18).

7. The rotary kiln material backflow prevention device according to claim 1, characterized in that: A mounting rod (20) is movably inserted into an outer end surface of one side of the support rod (21), and a support plate (19) is fixed to an outer end surface of one side of the mounting rod (20).

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