Material processing device before feeding of rotary kiln

By designing a material handling device before feeding the rotary kiln and utilizing a combined structure of stirring blades and hydraulic rods, the problem of easy agglomeration and clogging of materials in the production of titanium dioxide by the sulfuric acid process was solved, achieving uniform material feeding and improving the cleanliness of the device.

CN223311925UActive Publication Date: 2025-09-09徐州钛白化工有限责任公司
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Patent Information

Application Number
CN202422294803.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-09-09
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

During the production of titanium dioxide using the sulfuric acid method, the skewed acid slurry still contains a high level of free water after mechanical dehydration, resulting in high viscosity and easy agglomeration of the material. Direct feeding can easily cause screw blockage.

Method used

A material handling device before feeding a rotary kiln is designed. The device adopts a combined structure of a driving motor, a reducer, a transmission sprocket, a driven sprocket, a chain, a transmission shaft, a rotating gear, a block and a square groove. The material is dispersed by a stirring blade, and the disassembly and cleaning of the stirring blade are facilitated by the cooperation of a hydraulic rod and an L-shaped plate.

Benefits of technology

It achieves uniform feeding of materials, reduces screw blockage and working noise, reduces the labor intensity of workers, and improves the cleanliness of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a material processing device before feeding of a rotary kiln, which comprises a stirring box, two rolling shafts distributed front and back are arranged in an inner cavity of the stirring box, a plurality of stirring blades are fixedly connected to the outer walls of the rolling shafts, square grooves are formed in the circle centers of the left side and the right side of each rolling shaft, square blocks are attached to inner cavities of the square grooves in a sliding mode, and the square blocks are connected with the stirring box in a sliding mode. When in use, through the arrangement of the driving motor, the speed reducer, the transmission chain wheel, the driven chain wheel, the chain, the transmission shaft, the rotating gear, the square block and the square groove, the two rolling shafts can be driven by the driving motor to rotate relatively, so that a plurality of stirring blades can be driven to scatter squeezed materials; therefore, uniform feeding of squeezed materials can be guaranteed, labor intensity of workers is reduced, blockage of the feeding screw is prevented, and noise of a working site is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of sulfuric acid process titanium dioxide production equipment, in particular to a material processing device before feeding a rotary kiln. Background Art

[0002] During the sulfuric acid process of titanium dioxide production, the skew acid, after salt treatment, becomes a viscous slurry. During the rotary kiln calcination process, a large amount of heat is first used to evaporate the water in the skew acid, followed by desulfurization and conversion. Therefore, the lower the water content of the skew acid entering the kiln, the more energy is saved for calcination. Furthermore, due to the faster dehydration rate within the rotary kiln and the earlier start of the desulfurization zone, the rotary kiln's output can be increased. Therefore, before the skew acid slurry enters the rotary kiln for calcination, it is mechanically dehydrated using a membrane filter press.

[0003] Currently, after mechanical dehydration of the skewed acid slurry through a membrane filter press, the free water content of the skewed acid remains at around 40%. This results in high viscosity and a tendency to clump. This can lead to screw blockage if direct feeding is used. Therefore, a material handling device prior to rotary kiln feeding is required to address this issue. Utility Model Content

[0004] One of the purposes of this utility model is achieved by the following technical solution:

[0005] The material processing device before feeding the rotary kiln includes a stirring box, the inner cavity of the stirring box is provided with two rollers distributed front and back, and the outer walls of the rollers are fixedly connected to a plurality of stirring blades, square grooves are provided at the centers of the left and right sides of the two rollers, and squares are slidably fitted in the inner cavity of the square grooves, and the four squares are fixedly connected to a transmission shaft on the side away from the rollers, two circular holes distributed front and back are provided on the left and right sides of the stirring box, hydraulic rods are fixedly installed near the bottom on the left and right sides of the stirring box, movable seats are provided on the left and right sides of the stirring box, and the top of the movable seat is fixedly connected to a bearing seat, the power end of the hydraulic rod on the right is fixedly connected to a push plate, and the top of the push plate is fixedly connected to the adjacent movable seat, the power end of the hydraulic rod on the left is fixedly connected to an L-shaped plate, and the top of the L-shaped plate is fixedly connected to the adjacent movable seat, and both bearing seats are fixedly connected There are two bearings distributed front and back, the right ends of the two transmission shafts on the right side respectively pass through adjacent circular holes and are respectively inserted into the inner cavities of adjacent bearings, the left ends of the two transmission shafts on the left side respectively pass through adjacent circular holes and the inner cavities of bearings, and both extend to the left side of the bearing seat, the outer walls of the two transmission shafts on the left side are sleeved and fixed with rotating gears, and the two rotating gears are meshed, a bottom plate is fixedly connected to the bottom of the left side of the mixing box, and a T-shaped plate is fitted on the top of the bottom plate, a driving motor and a reducer are fixedly installed on the top of the T-shaped plate, and the power end of the driving motor is fixedly connected to the power input end of the reducer, the power output end of the reducer is fixedly connected to a transmission sprocket, and the left end of the transmission shaft located on the left front side is fixedly connected to a driven sprocket, a chain is provided between the transmission sprocket and the driven sprocket, and the transmission sprocket and the driven sprocket are connected by chain transmission.

[0006] Furthermore, a sealing ring is fitted on the outer wall of the transmission shaft, and the sealing ring is fixedly connected to the outer wall of the mixing box.

[0007] Furthermore, a slider is fixedly connected to the bottom of the T-shaped plate, a sliding groove adapted to the slider is provided on the top of the bottom plate, and the slider is slidably connected to the inner cavity of the sliding groove.

[0008] Furthermore, a square hole is provided on the movable seat on the right side, and a square rod is slidably fitted into the inner cavity of the square hole, and the left end of the square rod is fixedly connected to the right side wall of the mixing box.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. Through the arrangement of the driving motor, reducer, transmission sprocket, driven sprocket, chain, transmission shaft, rotating gear, block and square groove, the driving motor can drive the two rollers to rotate relative to each other, thereby driving a number of stirring blades to break up the squeezed material, thereby ensuring uniform feeding of the squeezed material, reducing the labor intensity of the staff, preventing the feed screw from being blocked and reducing the noise at the work site;

[0011] 2. Through the arrangement of the hydraulic rod, L-shaped plate, movable seat, push plate and square rod, when the hydraulic rods on both sides are started to push the L-shaped plate and the push plate away from the mixing box, the transmission shafts on both sides of the mixing box can be driven away from the rollers, and the blocks can be pulled out from the inner cavity of the square groove, and then the rollers and stirring blades can be removed from the inner cavity of the mixing box, making it convenient for the staff to disassemble and clean the mixing box, rollers and stirring blades, thereby improving the cleanliness of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of this embodiment;

[0013] Figure 2 This is a top view of the mixing box of this embodiment;

[0014] Figure 3 It is a side view of the roller of this embodiment.

[0015] In the figure: 1. Mixing box; 2. Roller; 3. Mixing blade; 4. Square trough; 5. Block; 6. Drive shaft; 7. Bearing seat; 8. Moving seat; 9. Push plate; 10. Hydraulic rod; 11. L-shaped plate; 12. T-shaped plate; 13. Drive motor; 14. Reducer; 15. Drive sprocket; 16. Driven sprocket; 17. Chain; 18. Rotating gear; 19. Bottom plate; 20. Square rod; 21. Sealing ring. DETAILED DESCRIPTION

[0016] See also Figures 1 to 3 , the utility model provides the following technical solutions:

[0017] The material processing device before feeding the rotary kiln includes a mixing box 1. The inner cavity of the mixing box 1 is provided with two rollers 2 distributed front and back, and the outer wall of the roller 2 is fixedly connected with a plurality of stirring blades 3. Square grooves 4 are provided at the center of the left and right sides of the two rollers 2, and the inner cavity of the square groove 4 is slidably fitted with a block 5. The four blocks 5 are fixedly connected with a transmission shaft 6 on the side away from the roller 2. Two circular holes distributed front and back are provided on the left and right sides of the mixing box 1. Hydraulic rods 10 are fixedly installed near the bottom of the left and right sides of the mixing box 1. A movable seat 8 is provided on the left and right sides of the mixing box 1, and the movable seat 8 is fixedly mounted on the left and right sides of the mixing box 1. The top is fixedly connected with a bearing seat 7, a square hole is opened on the movable seat 8 on the right, and a square rod 20 is slidably fitted in the inner cavity of the square hole, and the left end of the square rod 20 is fixedly connected to the right side wall of the mixing box 1, the power end of the hydraulic rod 10 on the right is fixedly connected with a push plate 9, and the top of the push plate 9 is fixedly connected to the adjacent movable seat 8, the power end of the hydraulic rod 10 on the left is fixedly connected with an L-shaped plate 11, and the top of the L-shaped plate 11 is fixedly connected to the adjacent movable seat 8, two bearings are fixedly connected to the two bearing seats 7, and the right ends of the two transmission shafts 6 on the right are respectively penetrated Pass through adjacent circular holes and are respectively inserted into the inner cavities of adjacent bearings. The left ends of the two transmission shafts 6 on the left side respectively pass through the adjacent circular holes and the inner cavities of the bearings and extend to the left side of the bearing seat 7. The outer walls of the two transmission shafts 6 on the left side are both sleeved and fixed with rotating gears 18, and the two rotating gears 18 are meshed. A bottom plate 19 is fixedly connected to the bottom of the left side of the mixing box 1, and a T-shaped plate 12 is fitted on the top of the bottom plate 19. A slider is fixedly connected to the bottom of the T-shaped plate 12, and a slide groove adapted to the slider is opened on the top of the bottom plate 19, and the slider is slidably connected to the inner cavity of the slide groove. The T-shaped A driving motor 13 and a reducer 14 are fixedly installed on the top of the plate 12, and the power end of the driving motor 13 is fixedly connected to the power input end of the reducer 14, and the power output end of the reducer 14 is fixedly connected to a transmission sprocket 15. The left end of the transmission shaft 6 located on the left front side is fixedly connected to a driven sprocket 16. A chain 17 is provided between the transmission sprocket 15 and the driven sprocket 16, and the transmission sprocket 15 and the driven sprocket 16 are connected through the chain 17. A sealing ring 21 is provided on the outer wall of the transmission shaft 6, and the sealing ring 21 is fixedly connected to the outer wall of the mixing box 1 to prevent material leakage.

[0018] Working principle: When the utility model is in use, the material to be broken up is put into the inner cavity of the mixing box 1, and then the drive motor 13 is started by an external power supply. The drive motor 13 drives the power input end of the reducer 14 to rotate, and after deceleration, it drives the transmission sprocket 15 to rotate. The rotation of the transmission sprocket 15 drives the driven sprocket 16 to rotate through the chain 17. The rotation of the driven sprocket 16 drives the transmission shaft 6 on the left front side to rotate, and the engagement of the two rotating gears 18 can drive the transmission shaft 6 on the rear side to rotate in the opposite direction. The rotation of the transmission shaft 6 drives the block 5 to rotate, and the rotation of the block 5 and the square groove 4 drives the roller 2 to rotate, and the roller 2 rotates. It can drive several stirring blades 3 to rotate and break up the materials, thereby ensuring uniform feeding of the squeezed materials, reducing the labor intensity of the staff, preventing the feeding screw from being blocked and reducing the noise at the work site. When the material processing is completed, the hydraulic rod 10 is started by an external power supply, and the L-shaped plate 11 and the push plate 9 are pushed away from the mixing box 1 respectively, which can drive the transmission shafts 6 on both sides of the mixing box 1 away from the roller 2, and the block 5 is pulled out from the inner cavity of the square groove 4, and then the roller 2 and the stirring blade 3 can be removed from the inner cavity of the mixing box 1, which is convenient for the staff to disassemble and clean the mixing box 1, roller 2 and stirring blade 3, thereby improving the cleanliness of the device.

Claims

1. A material processing device before feeding a rotary kiln, comprising a stirring box (1), characterized in that: The inner cavity of the mixing box (1) is provided with two rollers (2) distributed front and back, and the outer wall of the roller (2) is fixedly connected with a plurality of stirring blades (3), the left and right centers of the two rollers (2) are provided with square grooves (4), and the inner cavity of the square grooves (4) is slidably fitted with square blocks (5), and the sides of the four square blocks (5) away from the rollers (2) are fixedly connected with transmission shafts (6), the left and right sides of the mixing box (1) are provided with two circular holes distributed front and back, and the left and right sides of the mixing box (1) are fixedly installed with hydraulic rods (1) near the bottom. 0), the left and right sides of the mixing box (1) are both provided with a movable seat (8), and the top of the movable seat (8) is fixedly connected to a bearing seat (7), the power end of the hydraulic rod (10) located on the right is fixedly connected to a push plate (9), and the top of the push plate (9) is fixedly connected to the adjacent movable seat (8), the power end of the hydraulic rod (10) located on the left is fixedly connected to an L-shaped plate (11), and the top of the L-shaped plate (11) is fixedly connected to the adjacent movable seat (8), and two bearing seats (7) are fixedly connected to two bearings distributed front and back, located The right ends of the two transmission shafts (6) on the right side respectively pass through the adjacent circular holes and are respectively inserted into the inner cavities of the adjacent bearings. The left ends of the two transmission shafts (6) on the left side respectively pass through the adjacent circular holes and the inner cavities of the bearings and extend to the left side of the bearing seat (7). The outer walls of the two transmission shafts (6) on the left side are both sleeved and fixed with rotating gears (18), and the two rotating gears (18) are meshed. A bottom plate (19) is fixedly connected to the bottom of the left side of the mixing box (1), and a T-shaped plate (12) is fitted on the top of the bottom plate (19). The T A driving motor (13) and a speed reducer (14) are fixedly installed on the top of the shaped plate (12), and the power end of the driving motor (13) is fixedly connected to the power input end of the speed reducer (14), and the power output end of the speed reducer (14) is fixedly connected to a transmission sprocket (15). The left end of the transmission shaft (6) located on the left front side is fixedly connected to a driven sprocket (16), and a chain (17) is provided between the transmission sprocket (15) and the driven sprocket (16), and the transmission sprocket (15) and the driven sprocket (16) are connected to each other through the chain (17).

2. The material processing device before rotary kiln feeding according to claim 1, characterized in that: The outer wall of the transmission shaft (6) is fitted with a sealing ring (21), and the sealing ring (21) is fixedly connected to the outer wall of the mixing box (1).

3. The material processing device before rotary kiln feeding according to claim 1, characterized in that: The bottom of the T-shaped plate (12) is fixedly connected with a slider, the top of the bottom plate (19) is provided with a slide groove adapted to the slider, and the slider is slidably connected to the inner cavity of the slide groove.

4. The material processing device before rotary kiln feeding according to claim 1, characterized in that: A square hole is provided on the movable seat (8) on the right side, and a square rod (20) is slidably fitted into the inner cavity of the square hole, and the left end of the square rod (20) is fixedly connected to the right side wall of the mixing box (1).