A rotary kiln with internal dust removal capability

Abstract

This utility model discloses a rotary kiln with internal dust removal capability, comprising a worktable. A first fixed box is fixedly connected to the upper end of the worktable, and a feed inlet is fixedly connected to the upper end of the first fixed box. A motor is fixedly connected to the upper end of the worktable. A second fixed box is fixedly connected to the other side of the worktable, and a dust collection box is fixedly connected to the upper end of the second fixed box. A filter screen is movably fitted on one side of the dust collection box. A furnace body is disposed between the first and second fixed boxes. A support frame is fixedly connected to the lower end of the worktable. A guide plate is disposed below the feed inlet, and the furnace body is disposed on the other side of the guide plate. With this structure, frequent shutdowns for manual cleaning are unnecessary, reducing production interruptions and maintenance costs. It also avoids furnace body wear caused by long-term erosion from accumulated ash, extending equipment life. Timely cleaning or replacement of the filter screen maintains dust removal efficiency and prevents filter clogging from affecting internal cleaning.

Description

Technical Field

[0001] This utility model relates to the field of kiln dust removal technology, and in particular to a rotary kiln with internal dust removal capability. Background Technology

[0002] Internally dust-removable rotary kilns are rotary calcining equipment that integrates dust removal functions. They are widely used in building materials, metallurgy, environmental protection and other fields. Based on the traditional tilting rotation of rotary kilns, they have a built-in special dust removal structure that can simultaneously remove the dust adhering inside the kiln during operation. This design can not only prevent dust accumulation from affecting the uniformity of material heating, but also reduce wear on the kiln wall, reduce the load on subsequent external dust removal equipment, and improve production efficiency and environmental performance. They are especially suitable for calcining materials that are prone to generating dust.

[0003] Traditional rotary kilns lack active cleaning design, and dust easily accumulates on the furnace walls. Long-term accumulation weakens heat transfer efficiency, leading to increased energy consumption. Dust mixed with materials can also affect product purity and increase the defect rate. Cleaning requires stopping the machine for disassembly, which is not only labor-intensive and time-consuming, but also frequently interrupts the production rhythm, reducing overall efficiency. Long-term dust accumulation will accelerate the aging of the furnace body, increase the risk of failure, and greatly reduce production stability and economy. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a rotary kiln with internal dust removal capability. This solves the problem that the filters of traditional rotary kilns are mostly fixedly installed, and cleaning or replacement requires disassembling multiple parts, which is complicated and cumbersome. This leads to long downtime during maintenance, frequent interruptions to the production rhythm, reduced overall efficiency, and the complicated disassembly and assembly process relies on professional personnel, which increases labor costs. In some cases, the troublesome operation may even delay maintenance, causing filter blockage, weakening the dust removal effect, and thus affecting the kiln environment and product quality.

[0005] This utility model also provides a rotary kiln with the aforementioned internal dust removal capability, including a worktable. A first fixed box is fixedly connected to the upper end of the worktable, and a feed inlet is fixedly connected to the upper end of the first fixed box. A motor is fixedly connected to the upper end of the worktable. A second fixed box is fixedly connected to the other side of the worktable. A dust collection box is fixedly connected to the upper end of the second fixed box. A filter screen is movably fitted on one side of the dust collection box. A furnace body is disposed between the first and second fixed boxes. A support frame is fixedly connected to the lower end of the worktable.

[0006] According to the present invention, a rotary kiln with internal dust removal is provided at the lower end of the feed inlet, and a furnace body is provided on the other side of the feed inlet.

[0007] According to the present invention, a rotary kiln with internal dust removal capability has multiple auxiliary pulleys symmetrically distributed inside the first fixed box, and the interior of the auxiliary pulleys is in close contact with the kiln body.

[0008] According to the present invention, a rotary kiln with internal dust removal capability is provided, wherein a gear ring is fixedly connected to the outside of the kiln body, and a gear is fixedly connected to the output end of the motor, and the gear meshes with the gear ring.

[0009] According to the present invention, a rotary kiln with internal dust removal capability is provided, wherein a second auxiliary pulley is fixedly connected inside the second fixed box, and the upper end of the second auxiliary pulley is in close contact with the kiln body.

[0010] According to the present invention, a rotary kiln with internal dust removal capability is provided, wherein a second partition is fixedly connected inside the dust collection box, and a placement groove is provided inside the second partition. A slide rail is fixedly connected inside the dust collection box, and a filter screen is slidably connected to the outside of the slide rail. A partition is provided at the upper end of the filter screen, and a first fan is provided at the lower end of the filter screen. A guide plate is fixedly connected to the lower end of the first fan, and the filter screen is externally fitted and connected to the placement groove.

[0011] According to the present invention, a rotary kiln with internal dust removal capability is provided, wherein a first partition is fixedly connected inside the first fixed box, a fixed rod is fixedly connected to the lower end of the second partition, a steel brush is fixedly connected to the outer surface of the fixed rod, the upper end of the steel brush is in close contact with the inside of the kiln body, and the other side of the fixed rod is fixedly connected to the first partition.

[0012] According to the present invention, a rotary kiln with internal dust removal capability is provided, wherein a limiting ring is fixedly connected inside the kiln body. Beneficial effects

[0013] 1. The furnace body is continuously cleaned by steel brushes, and dust is removed simultaneously by a dust collection device. This continuous cleaning keeps the furnace body clean at all times, preventing dust from adhering and hindering heat transfer. This results in more even heating of materials and more stable product quality. It eliminates the need for frequent shutdowns for manual cleaning, reduces production interruptions, lowers maintenance costs, and avoids furnace body wear caused by long-term erosion from accumulated ash, thus extending the equipment's lifespan.

[0014] 2. The filter screen adopts a detachable design, and cleaning or replacement can be done by hand or with simple tools without complicated operations. This greatly shortens maintenance downtime, reduces production interruptions, and allows the equipment to operate more continuously. The convenient disassembly and assembly method lowers the maintenance threshold and can be operated without professional personnel, saving labor costs. Timely cleaning or replacement of the filter screen can always maintain dust removal efficiency and avoid affecting furnace cleaning due to filter screen blockage. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 A perspective view of a rotary kiln with internal dust removal capability proposed in this utility model; Figure 2 A cross-sectional view of a rotary kiln with internal dust removal capability proposed in this utility model; Figure 3 The present utility model proposes Figure 2 Enlarged view of point A in the middle; Figure 4 The present utility model proposes Figure 2 Enlarged view of point B in the middle.

[0016] Legend: 1. Feed inlet; 2. First fixed box; 3. Workbench; 4. Support frame; 5. Motor; 6. Placement slot; 7. Second fixed box; 8. Dust collection box; 9. Filter screen; 10. Guide plate; 11. First partition plate; 12. Partition screen; 13. Furnace body; 14. Steel brush; 15. First auxiliary pulley; 16. Gear; 17. Air guide plate; 18. Second auxiliary pulley; 19. Second partition plate; 20. First fan; 21. Fixed rod; 22. Limiting ring; 23. Gear ring; 24. Slide rail. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-4 This utility model provides an internally dust-removable rotary kiln, which includes a worktable 3. A first fixed box 2 is fixedly connected to the upper end of the worktable 3. A feed inlet 1 is fixedly connected to the upper end of the first fixed box 2. A motor 5 is fixedly connected to the upper end of the worktable 3. A second fixed box 7 is fixedly connected to the other side of the worktable 3. A dust collection box 8 is fixedly connected to the upper end of the second fixed box 7. A filter screen 9 is movably fitted on one side of the dust collection box 8. A furnace body 13 is provided between the first fixed box 2 and the second fixed box 7. A support frame 4 is fixedly connected to the lower end of the worktable 3.

[0019] Specifically, the feed inlet 1 can better add materials to the furnace body 13, the output end of the motor 5 can provide rotation for the gear 16, the dust collection box 8 can better install the filter screen 9, the filter screen 9 can filter the dust inside the dust collection box 8, and the support frame 4 can increase the height of the workbench 3.

[0020] A guide plate 10 is provided at the lower end of the feed inlet 1, and a furnace body 13 is provided on the other side of the guide plate 10.

[0021] Specifically, the guide plate 10 guides the material from the feed inlet 1 into the furnace body 13, realizing the directional conveying of the material.

[0022] Multiple auxiliary pulleys 15 are symmetrically distributed inside the No. 1 fixed box 2, and the interior of the auxiliary pulleys 15 is in close contact with the furnace body 13.

[0023] Specifically, the No. 1 auxiliary pulley 15 provides auxiliary support for the furnace body 13, reducing the friction when the furnace body 13 rotates.

[0024] A gear ring 23 is fixedly connected to the outside of the furnace body 13, and a gear 16 is fixedly connected to the output end of the motor 5. The gear 16 meshes with the gear ring 23.

[0025] Specifically, the motor 5 transmits power to the furnace body 13 through the meshing of the gear 16 and the gear ring 23, driving the furnace body 13 to rotate.

[0026] The second auxiliary pulley 18 is fixedly connected inside the second fixed box 7, and the upper end of the second auxiliary pulley 18 is in close contact with the furnace body 13.

[0027] Specifically, the second auxiliary pulley 18 works in conjunction with the first auxiliary pulley 15 to provide auxiliary support from the other end of the furnace body 13, further enhancing the stability of the furnace body 13 during rotation, reducing swaying, and balancing the forces on both ends of the furnace body 13.

[0028] The dust collection box 8 is fixedly connected to a second partition 19, and the second partition 19 has a placement slot 6 inside. The dust collection box 8 is fixedly connected to a slide rail 24, and a filter screen 9 is slidably connected to the outside of the slide rail 24. A partition 12 is set at the upper end of the filter screen 9, and a first fan 20 is set at the lower end of the filter screen 9. A guide plate 17 is fixedly connected to the lower end of the first fan 20, and the filter screen 9 is externally fitted and connected to the placement slot 6.

[0029] Specifically, the No. 1 fan 20 generates suction to draw dust from the furnace body 13 into the dust collection box 8. The filter screen 9 filters the dust, the partition screen 12 protects the filter screen 9 and the No. 1 fan 20, and the slide rail 24 and the placement slot 6 facilitate the disassembly and replacement of the filter screen 9, thereby achieving dust collection and filtration and realizing the dust removal function.

[0030] A first partition 11 is fixedly connected inside the first fixed box 2. A fixing rod 21 is fixedly connected to the lower end of the second partition 19. A steel brush 14 is fixedly connected to the outer surface of the fixing rod 21. The upper end of the steel brush 14 is in close contact with the inside of the furnace body 13. The other side of the fixing rod 21 is fixedly connected to the first partition 11.

[0031] Specifically, when the furnace body 13 rotates, the steel brush 14 contacts the inner wall of the furnace body 13 to remove dust or debris adhering to the inside of the furnace body 13 and keep the furnace body 13 clean. The fixing rod 21 and the partition are used to fix the position of the steel brush 14.

[0032] A limit ring 22 is fixedly connected inside the furnace body 13.

[0033] Specifically, the limiting ring 22 limits the material inside the furnace body 13.

[0034] Working principle: Material is fed into the furnace body 13 through the feed inlet 1 and guided into the furnace body 13 by the guide plate 10. The limiting ring 22 inside the furnace body 13 limits the material to prevent excessive deviation. The motor 5 is started, and the output end of the motor 5 drives the gear 16 to rotate. The gear 16 meshes with the gear ring 23 on the outside of the furnace body 13, thereby driving the furnace body 13 to rotate. During this process, multiple auxiliary pulleys 15 in the first fixed box 2 and auxiliary pulleys 18 in the second fixed box 7 are in close contact with and provide auxiliary support from both ends of the furnace body 13, reducing the friction of the furnace body 13 during rotation and ensuring its stable operation. While the furnace body 13 rotates, it is fixed to... The steel brush 14 on the fixing rod 21 between the first partition 11 and the second partition 19 is in continuous contact with the inner wall of the furnace body 13, brushing away the dust and debris attached to the inside of the furnace body 13. Simultaneously, the first fan 20 in the dust collection box 8 is started. The first fan 20 generates suction to suck the dust in the furnace body 13 and the dust brushed off by the steel brush 14 into the dust collection box 8. The dust is first guided by the air guide plate 17, and then filtered by the filter screen 9 installed in the placement slot 6 through the slide rail 24. The filtered clean air is discharged through the partition 12, realizing efficient dust removal inside the furnace body 13. The filter screen 9 can be removed from the placement slot 6 through the slide rail 24 for easy cleaning or replacement later.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rotary kiln internally cleanable, comprising a worktable (3), characterized in that: The upper end of the workbench (3) is fixedly connected to a first fixed box (2), the upper end of the first fixed box (2) is fixedly connected to a feed inlet (1), the upper end of the workbench (3) is fixedly connected to a motor (5), the other side of the workbench (3) is fixedly connected to a second fixed box (7), the upper end of the second fixed box (7) is fixedly connected to a dust collection box (8), a filter screen (9) is movably fitted on one side of the dust collection box (8), a furnace body (13) is provided between the first fixed box (2) and the second fixed box (7), and the lower end of the workbench (3) is fixedly connected to a support frame (4).

2. An internally cleanable rotary kiln according to claim 1, wherein, A guide plate (10) is provided at the lower end of the feed inlet (1), and a furnace body (13) is provided on the other side of the guide plate (10).

3. An internally cleanable rotary kiln according to claim 1, wherein, The first fixed box (2) has multiple first auxiliary pulleys (15) symmetrically distributed inside, and the first auxiliary pulleys (15) are in close contact with the furnace body (13).

4. An internally cleanable rotary kiln according to claim 1, wherein, A gear ring (23) is fixedly connected to the outside of the furnace body (13), and a gear (16) is fixedly connected to the output end of the motor (5). The gear (16) meshes with the gear ring (23).

5. An internally cleanable rotary kiln according to claim 1, wherein, The second fixed box (7) is fixedly connected to the second auxiliary pulley (18), and the upper end of the second auxiliary pulley (18) is in close contact with the furnace body (13).

6. An internally cleanable rotary kiln according to claim 1, wherein, The dust collection box (8) is fixedly connected to a second partition (19), and a placement slot (6) is opened inside the second partition (19). The dust collection box (8) is fixedly connected to a slide rail (24), and a filter screen (9) is slidably connected to the outside of the slide rail (24). A partition net (12) is provided at the upper end of the filter screen (9), and a first fan (20) is provided at the lower end of the filter screen (9). A guide plate (17) is fixedly connected to the lower end of the first fan (20), and the filter screen (9) is externally fitted and connected to the placement slot (6).

7. An internally cleanable rotary kiln according to claim 6, wherein, The first fixed box (2) is fixedly connected to a first partition (11), and the lower end of the second partition (19) is fixedly connected to a fixed rod (21). A steel brush (14) is fixedly connected to the outside of the fixed rod (21). The upper end of the steel brush (14) is in close contact with the inside of the furnace body (13), and the other side of the fixed rod (21) is fixedly connected to the first partition (11).

8. An internally cleanable rotary kiln according to claim 1, wherein, A limiting ring (22) is fixedly connected inside the furnace body (13).

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