Head star wheel with anti-wear and directional slag removal functions
By designing a wear-resistant and directional slag discharge head star wheel, and utilizing an annular cylinder and baffle plate structure, the problems of star wheel wear and material splashing were solved, achieving wear resistance and directional slag discharge of the star wheel, simplifying the modification process, and reducing dust pollution and cleaning difficulty.
Patent Information
- Application Number
- CN202522706662.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-22
AI Technical Summary
The star wheel at the head of the belt roaster is worn by the scouring of loose material during operation, causing the loose material to splash and dust to scatter everywhere, affecting the bearing life and making cleaning more difficult.
Design a head star wheel with wear-resistant and directional slag discharge functions. It collects loose material through an annular cylinder and baffle plate, and achieves directional discharge through a combination structure of arc plate and connecting rib plate. Combined with rubber lining, it reduces wear and noise.
It effectively prevents star wheel shaft wear, centrally collects and directionally discharges bulk materials, reduces dust pollution, extends bearing life, and simplifies the modification process.
Smart Images
Figure CN224941959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a belt roaster, and more particularly to a head star wheel in a belt roaster that has anti-wear and directional slag discharge functions. Background Technology
[0002] The belt calciner is the core process equipment in the belt oxidized pellet production line. The head star wheel in the belt calciner is close to the material feeding area. During the feeding process, some loose material falls and washes against the head star wheel. The star wheel shaft in the head star wheel will be worn thin and weakened by the scouring of loose material over a long period of time, making it prone to breakage. Moreover, the falling loose material will scatter and fly around after hitting the star wheel shaft, generating a lot of dust. The flying loose material will not only be scattered messily on the inside of the head star wheel, increasing the difficulty of subsequent cleaning, but the large amount of dust generated will also spread everywhere and easily enter the bearing at the connection between the head star wheel and the belt calciner, affecting the service life of the bearing. Summary of the Invention
[0003] The purpose of this invention is to provide a head star wheel with anti-wear and directional slag discharge functions. The annular cylinder can prevent the star wheel shaft from being worn, and the receiving groove on the annular cylinder can collect bulk materials and discharge them in a directional manner.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a head star wheel with anti-wear and directional slag discharge functions, comprising: a star wheel plate and a star wheel shaft, two star wheel plates fixed at both ends of the star wheel shaft, a plurality of reinforcing ribs evenly distributed around the circumference of the star wheel shaft, an annular cylinder fitted on the star wheel shaft, a plurality of slots that can engage with the reinforcing ribs provided in the annular cylinder, a flared retaining ring near the star wheel plate provided at both ends of the annular cylinder, a plurality of baffle plates equally spaced along the circumference on the circumferential wall of the annular cylinder, the baffle plates extending to the flared retaining ring of the annular cylinder, a receiving groove left between two adjacent baffle plates on the circumference, the inclination direction of the baffle plates being the same as the rotation direction of the star wheel plate.
[0005] Furthermore, in the aforementioned head star wheel with anti-wear and directional slag discharge functions, the annular cylinder is composed of several arc-shaped plates spliced together. The baffle plates are equidistantly arranged along the circumference of the arc-shaped plate. Curved edges are provided at both ends of the arc-shaped plates. Connecting ribs are provided on both the front and rear side walls of the arc-shaped plates. The connecting ribs do not interfere with the baffle plates. A semi-groove is provided at the bottom of the connecting ribs. When the arc-shaped plates are spliced together, the curved edges on the same side form a trumpet-shaped retaining ring. The semi-grooves on two adjacent connecting ribs fit together to form a slot that engages with the reinforcing rib. The two spliced connecting ribs are connected by bolts.
[0006] Furthermore, in the aforementioned head star wheel with anti-wear and directional slag discharge functions, a partition plate is provided in the middle of each arc plate, and slots that do not interfere with the connecting ribs are provided at both ends of the partition plate. Several baffle plates are provided on the arc plates located on the left and right sides of the partition plate. One end of the baffle plate is welded to the partition plate, and a guide part is bent at the other end of the baffle plate. The guide part is welded to the curved edge, and the bending direction of the guide part is opposite to the rotation direction of the star wheel plate.
[0007] Furthermore, in the aforementioned head star wheel with anti-wear and directional slag discharge functions, rubber liners are bolted to the upper and lower side walls of the baffle plate, the upper and lower side walls of the guide section, and the outer side wall of the raised edge. The Shore hardness of the rubber liners is 60±5A.
[0008] Furthermore, in the aforementioned head star wheel with anti-wear and directional slag discharge functions, the two ends of the curved edge are recessed into the two ends of the arc plate. When the arc plate is spliced, a gap is left between two adjacent curved edges. A guard plate is set between two adjacent curved edges. The guard plate is placed in the gap between two adjacent curved edges. An avoidance groove is set at the bottom of the guard plate. The bottom of the avoidance groove abuts against the corresponding reinforcing rib plate.
[0009] The advantages of this invention are as follows: When the head star wheel rotates, the loose material falling from the belt roaster will fall onto the baffle plate of the annular cylinder, and then be caught by the receiving groove between two adjacent baffle plates. When the opening of the receiving groove containing the loose material is facing down, the loose material will automatically fall from the receiving groove. This can prevent the loose material from causing wear on the star wheel shaft, collect the loose material, prevent the loose material from splashing and dusting everywhere, dirtying the ground, and entering the bearings, thus affecting the service life of the bearings. It can also direct the fallen loose material to the same position, which is convenient for subsequent cleaning.
[0010] The annular cylinder is composed of several arc-shaped plates. It can be directly spliced and installed on the head star wheel without disassembling the head star wheel, making it convenient to modify the existing head star wheel.
[0011] The baffle plate has a bent guide section that allows the loose material in the receiving trough to be discharged in a concentrated manner. The upper and lower side walls of the baffle plate, the upper and lower side walls of the guide section, and the outer side wall of the raised edge are all bolted with rubber lining plates, which can prevent the falling loose material from wearing the baffle plate, the guide section, and the raised edge, and can also reduce noise. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the head star wheel with anti-wear and directional slag discharge functions described in this utility model.
[0013] Figure 2 yes Figure 1 A schematic diagram of the connection structure between the central star wheel plate and the star wheel shaft.
[0014] Figure 3 yes Figure 1 A three-dimensional structural diagram of the middle annular cylinder.
[0015] Figure 4 yes Figure 3 A schematic diagram of the structure in the main view direction.
[0016] Figure 5 yes Figure 4 A schematic diagram of the structure viewed from the left. Detailed Implementation
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and preferred embodiments.
[0018] like Figures 1-5 As shown, the head star wheel with anti-wear and directional slag discharge functions of this utility model includes: star wheel plate 1 and star wheel shaft 11. Two star wheel plates 1 are fixed at both ends of star wheel shaft 11. Several reinforcing ribs 12 are evenly distributed around the circumference of star wheel shaft 11. By setting the reinforcing ribs 12, the rigidity and stability of star wheel shaft 11 can be improved without significantly increasing the weight of star wheel shaft 11, and the two star wheel plates 1 can be made to rotate synchronously. An annular cylinder 2 is fitted onto the star wheel shaft 11. Several slots 21 are provided in the annular cylinder 2 that can engage with the reinforcing rib plate 12. At both ends of the annular cylinder 2, there are flared retaining rings 22 close to the star wheel plate 1. Several baffle plates 23 are provided at equal intervals along the circumference of the annular cylinder 2. The baffle plates 23 extend to the flared retaining rings 22 of the annular cylinder 2. A receiving groove 24 is left between two adjacent baffle plates 23 on the circumference. The inclination direction of the baffle plate 23 is the same as the rotation direction of the star wheel plate 1. This ensures that the opening of the receiving groove 24 is oriented in the same direction as the rotation direction of the star wheel plate 1, which facilitates the receiving groove 24 to receive bulk materials.
[0019] When the belt roaster is working, the head star wheel drives the annular cylinder 2 to rotate together. The loose material at the feeding section of the belt roaster falls down onto the baffle plate 23, and then enters the receiving groove 24 along the baffle plate 23. The receiving groove 24 catches the loose material and keeps it in the receiving groove 24. This not only prevents the star wheel shaft 11 in the head star wheel from contacting the loose material and causing wear, but also collects the loose material and prevents it from splashing and causing dust to dirty the ground and enter the bearings. The trumpet-shaped retaining ring 22 on the annular cylinder 2 is curved upwards. This design not only increases the area of the receiving groove 24 for receiving bulk materials without affecting the star wheel plate 1, but also prevents the bulk materials in the receiving groove 24 from entering the head star wheel from the end of the annular cylinder 2 and causing friction on the star wheel shaft 11. When the opening of the receiving groove 24 containing bulk materials is rotated to the downward position, the bulk materials in the receiving groove 24 will automatically fall out. Since all the receiving grooves 24 discharge the bulk materials when rotated to the same position, the falling position of the bulk materials is consistent, achieving directional slag discharge and facilitating subsequent cleaning.
[0020] The annular cylinder 2 is composed of several arc-shaped plates 3 spliced together. The baffle plates 23 are equidistantly arranged along the circumference of the arc-shaped wall of the arc-shaped plates 3. The left and right ends of the arc-shaped plates 3 are provided with curved edges 31. The front and rear side walls of the arc-shaped plates 3 are provided with connecting ribs 32. The connecting ribs 32 do not interfere with the baffle plates 23. A semi-groove is provided at the bottom of the connecting ribs 32. When the arc-shaped plates 3 are spliced together, the curved edges 31 on the same side surround to form a trumpet-shaped retaining ring 22 close to the star wheel plate 1. The semi-grooves on two adjacent connecting ribs 32 are matched to form a slot 21 that engages with the reinforcing rib 12. The two spliced connecting ribs 32 are connected by bolts. The annular cylinder 2 formed by splicing the arc plate 3 does not require the star wheel plate 1 and the star wheel shaft 11 to be separated. The arc plate 3 can be directly clamped onto the star wheel shaft 11 along the circumference, and then the annular cylinder 2 can be fitted onto the star wheel shaft 11 for protection by bolt connection. Thus, all head star wheels can be quickly modified without disassembling the existing belt roaster.
[0021] A partition plate 33 is provided in the middle of each arc plate 3. The two ends of the partition plate 33 are provided with slots that do not interfere with the connecting stiffener 32. Several baffle plates 23 are provided on the arc plates 3 located on the left and right sides of the partition plate 33. One end of the baffle plate 23 is welded to the partition plate 33. The other end of the baffle plate 23 is bent into a guide part 231. The guide part 231 is welded to the warped edge 31. The bending direction of the guide part 231 is opposite to the rotation direction of the star wheel plate 1, so that the included angle between the baffle plate 23 and the guide part 231 is the same as the rotation direction of the star wheel plate 1. When the receiving groove 24 receives loose material, the loose material can be concentrated at the angle under the guidance of the baffle plate 23 and the guide part 231, making the loose material discharge more concentrated. The baffle plate 23 is installed by dividing the arc plate 3 into two equal areas on the left and right sides by the partition plate 33, which can shorten the length of the baffle plate 23 and provide support for the baffle plate 23, thereby improving the strength and stability of the baffle plate 23.
[0022] Rubber liners 4 are bolted to the upper and lower side walls of the baffle plate 23, the upper and lower side walls of the guide section 231, and the outer side wall of the raised edge 31. The Shore hardness of the rubber liners 4 is 60±5A. The rubber liners 4 with a Shore hardness of 60±5A can prevent the bulk material from directly abrading the baffle plate 23, the guide section 231, and the raised edge 31 when it falls. They can also reduce the noise generated when the bulk material falls on the annular cylinder 2, thus playing a noise reduction role. When the rubber liners 4 are worn, the worn rubber liners 4 can be quickly replaced by loosening the bolts.
[0023] The two ends of the curved edge 31 are recessed within the two ends of the arc plate 3. When the arc plate 3 is spliced, a gap is left between two adjacent curved edges 31. A guard plate 5 is provided between two adjacent curved edges 31, and the guard plate 5 is positioned over the gap between the two adjacent curved edges 31. An avoidance groove 51 is provided at the bottom of the guard plate 5, and the bottom of the avoidance groove 51 on the guard plate 5 abuts against the corresponding reinforcing rib plate 12. The recessed curved edge 31 does not interfere with the splicing of the arc plate 3, but the gap will allow loose material in the receiving groove 24 at the splicing point to enter the head star wheel. Therefore, after the arc plate 3 is spliced, the guard plate 5 is used to cover the gap, which can improve the connection strength and prevent loose material from falling into the head star wheel from the gap. The avoidance groove 51 at the bottom of the guard plate 5 can avoid the reinforcing rib plate 12 on the star wheel shaft 11 and abut against the reinforcing rib plate 12 to prevent loose material from falling into the head star wheel from the avoidance groove 51.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.
Claims
1. A head star wheel with anti-wear and directional slag removal functions, including: A star wheel plate and a star wheel shaft, wherein two star wheel plates are fixed at both ends of the star wheel shaft, and a number of reinforcing ribs are evenly distributed around the circumference of the star wheel shaft, characterized in that: an annular cylinder is fitted on the star wheel shaft, and a number of slots that can engage with the reinforcing ribs are provided in the annular cylinder; a flared retaining ring is provided at both ends of the annular cylinder near the star wheel plate; a number of baffle plates are equidistantly arranged along the circumference of the annular cylinder wall, the baffle plates extending to the flared retaining rings of the annular cylinder; a receiving groove is left between two adjacent baffle plates on the circumference; and the inclination direction of the baffle plates is the same as the rotation direction of the star wheel plate.
2. The head star wheel with anti-wear and directional slag discharge functions according to claim 1, characterized in that: The annular cylinder is composed of several arc-shaped plates. The baffle plates are equidistantly arranged along the circumference of the arc-shaped plate. There are raised edges at both ends of the arc-shaped plates. There are connecting ribs on the front and rear side walls of the arc-shaped plates. The connecting ribs do not interfere with the baffle plates. There is a semi-groove at the bottom of the connecting ribs. When the arc-shaped plates are spliced together, the raised edges on the same side form a trumpet-shaped retaining ring. The semi-grooves on two adjacent connecting ribs fit together to form a locking groove that engages with the reinforcing rib. The two spliced connecting ribs are connected by bolts.
3. The head star wheel with anti-wear and directional slag discharge functions according to claim 2, characterized in that: A partition plate is provided in the middle of each arc plate. Slots that do not interfere with the connecting stiffeners are provided at both ends of the partition plate. Several baffle plates are provided on the arc plates located on the left and right sides of the partition plate. One end of the baffle plate is welded to the partition plate, and a guide part is bent at the other end of the baffle plate. The guide part is welded to the curved edge. The bending direction of the guide part is opposite to the rotation direction of the star wheel plate.
4. The head star wheel with anti-wear and directional slag discharge functions according to claim 3, characterized in that: Rubber liners are bolted to the upper and lower side walls of the baffle plate, the upper and lower side walls of the guide section, and the outer side wall of the raised edge. The Shore hardness of the rubber liners is 60±5A.
5. The head star wheel with anti-wear and directional slag discharge functions according to claim 2, characterized in that: The two ends of the warped edge are recessed into the two ends of the curved plate. When the curved plate is spliced, there is a gap between two adjacent warped edges. A guard plate is set between two adjacent warped edges. The guard plate is placed in the gap between two adjacent warped edges. An avoidance groove is set at the bottom of the guard plate. The bottom of the avoidance groove abuts against the corresponding reinforcing rib plate.