Steel ball screening machine
By designing a steel ball screening machine that includes an inclined screening cylinder, dustproof shell and intermittent feed assembly, the problems of steel ball wear and dust pollution are solved, and more efficient steel ball screening and environmental protection are achieved.
Patent Information
- Application Number
- CN202421778915.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-25
AI Technical Summary
During cement grinding, the steel balls are worn and damaged seriously, resulting in many waste balls in the mill and poor screening effect. The high-speed movement of the steel balls and materials is likely to cause dust and pollute the environment.
A steel ball screening machine is designed, including an inclined screening cylinder, a dustproof shell, a drive member and a batch feed assembly. The screening cylinder consists of multiple screening units, each unit has screening channels of different widths, and the dustproof shell is used to intercept dust. The intermittent feeding assembly avoids a large number of steel balls entering at one time to ensure the screening effect.
Through the design of multi-stage screening and batch feed, the screening accuracy of the steel ball is significantly improved, the generation of dust is reduced, and the environment is protected.
Smart Images
Figure CN222956831U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel ball screening equipment, in particular to a steel ball screening machine. Background Art
[0002] A ball mill is a common grinding equipment, mainly used for crushing materials to a certain extent and then performing fine grinding. Its working principle is to use steel balls of different diameters as grinding media, and drive the steel balls to roll through the rotation of the cylinder body, so as to grind the materials in the cylinder body. In the cement production process, the ball mill is usually used to further grind the crushed limestone, clay and other raw materials into fine powder for subsequent processing into cement clinker.
[0003] During the cement grinding process, the steel balls are worn and damaged. In order to meet the work of the mill, the mill is filled with steel balls. For a long time, there are many waste balls in the mill, and the work of the mill is poor. It is necessary to screen and replace the steel balls in the mill. However, when the steel balls are put into the drum at one time, not only will the screening effect of the steel balls be affected due to the large number of steel balls entering the drum instantaneously, but also when the steel balls roll, collide with each other and rub against components such as the screen mesh, the dust, fine particles, etc. on the surface of the steel balls will be raised. And during the screening process, the high-speed movement of the steel balls and the materials drives the air flow, which easily makes some fine particles suspended to generate dust, causing environmental pollution. Summary of the Utility Model
[0004] The embodiments of the utility model provide a steel ball screening machine to solve the above-mentioned technical problems.
[0005] The embodiments of the utility model adopt the following technical solutions: including a screening cylinder, a dust-proof shell, a driving member and an intermittent feeding assembly. The screening cylinder is arranged obliquely downward from the input end to the output end, and the screening cylinder is composed of a plurality of screening units connected end to end. The plurality of screening units are respectively used for screening steel balls of different particle sizes. The dust-proof shell is arranged outside the screening cylinder for collecting the dust generated during the steel ball screening. The driving member is located at one end of the dust-proof shell, and the output end of the driving member is connected to one end of the screening cylinder for driving the screening cylinder to rotate. The intermittent feeding assembly is located at the input end of the screening cylinder and realizes intermittent feeding into the screening cylinder following the rotation of the screening cylinder.
[0006] Further, the screening unit includes a connecting ring and intercepting rods connected to the connecting ring. A screening channel is defined between adjacent two intercepting rods, and the width of the screening channels on the plurality of screening units gradually increases in the direction of the downward inclination of the screening cylinder.
[0007] Further, the intermittent feeding assembly includes a feeding hopper for containing unscreened steel balls and a blanking plate attached to the end of the output end of the feeding hopper. The blanking plate is connected to the output end of the screening cylinder, and a plurality of blanking openings are formed in the blanking plate.
[0008] Further, a plurality of inclined collecting net plates are provided inside the dust-proof housing. The plurality of collecting net plates respectively correspond to a plurality of screening units and are used for collecting steel balls of different particle sizes.
[0009] Further, a discharge port is provided on the dust-proof housing, and a baffle curtain is provided at the discharge port.
[0010] Further, a plurality of spoiler plates are provided inside the screening unit at the input end of the screening cylinder, and the plurality of spoiler plates are arranged in a staggered manner.
[0011] Further, a guiding portion is provided on the connecting ring, and the guiding portion is gradually inclined downward from the input end to the output end of the screening cylinder.
[0012] The above at least one technical solution adopted in the embodiment of the present invention can achieve the following beneficial effects:
[0013] In the present invention, after multi-stage screening of steel balls of different particle sizes by a plurality of screening units with different-width screening channels inside, the screening of steel balls is made more refined. At the same time, the steel balls entering the screening cylinder are intermittently fed under the action of the intermittent feeding assembly, avoiding excessive steel balls entering at one time, which may cause incomplete screening and affect the screening effect. At the same time, the dust-proof housing intercepts the dust generated during the screening of steel balls, avoiding the dispersion of dust and reducing the impact on the surrounding air environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention, and form a part of the present invention. The illustrative embodiments and descriptions thereof of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the drawings:
[0015] Figure 1 is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 is a schematic internal structure diagram of the dust-proof housing of the present invention;
[0017] Figure 3 is a schematic cross-sectional structure diagram of the present invention;
[0018] Figure 4 is a schematic cross-sectional structure diagram of the screening unit in the present invention.
[0019] REFERENCE MARKS
[0020] 1. Screening cylinder; 2. Screening unit; 21. Connecting ring; 22. Intercepting rod; 23. Screening channel; 3. Dust-proof housing; 4. Driving member; 5. Feeding hopper; 51. Feeding plate; 52. Feeding port; 6. Collection screen plate; 7. Discharge port; 71. Curtain; 8. Turbulence plate; 9. Flow guiding part. Detailed implementation manners
[0021] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0022] The following will, with reference to the drawings, detail the technical solutions provided by each embodiment of the present utility model.
[0023] The embodiment of the present utility model provides a steel ball screening machine. Referring to Figures 1 to 4 , it includes a screening cylinder 1. The screening cylinder 1 is arranged obliquely downward from the input end to the output end. Specifically, support legs with different heights can be provided at the bottom of the screening cylinder 1 to achieve the purpose of tilting the screening cylinder 1. The screening cylinder 1 is placed at an inclination angle of 5 - 9°, avoiding too large an inclination angle resulting in a relatively fast rolling speed of the steel balls and affecting the screening effect, and at the same time avoiding too small an inclination angle resulting in poor rolling efficiency of the steel balls. The end of the screening cylinder 1 with a higher height is the output end. When the steel balls enter the interior of the screening cylinder 1, they can roll towards the lower part. The screening cylinder 1 is composed of a plurality of screening units 2 connected end to end. The plurality of screening units 2 are respectively used for screening steel balls of different particle sizes. The screening unit 2 includes a connecting ring 21 and intercepting rods 22 connected to the connecting ring 21. A screening channel 23 is defined between two adjacent intercepting rods 22. Moreover, the widths of the screening channels 23 on the plurality of screening units 2 gradually increase in the direction of the downward inclination of the screening cylinder 1. When the steel balls enter the screening unit 2, if the diameter of the steel balls is greater than the width of the screening channel 23, they will be intercepted and continue to roll towards the lower part of the screening cylinder 1, while those with a diameter smaller than the width of the screening channel 23 will directly fall from this screening unit 2. In this way, multi-stage screening of the steel balls is achieved, and the screening effect is better.
[0024] In order to avoid the dust on the surface of the steel balls and the like from being lifted during the screening of the steel balls, which may affect the surrounding environment, a dust-proof shell 3 is also provided outside the screening cylinder 1 to collect the dust generated during the screening of the steel balls and prevent the dust from drifting around randomly. On one side of the dust-proof shell 3, a driving member 4 is also provided. The driving member 4 can be a device such as a motor. The output end of the driving member 4 is connected to one end of the screening cylinder 1 and is used to drive the screening cylinder 1 to rotate. Through the rotation of the screening cylinder 1, tumbling and stirring are carried out, which can better ensure that steel balls of different sizes accurately pass through the corresponding screening channels 23, increase the contact opportunity between the steel balls and the screening unit 2, and make the screening more thorough.
[0025] If the amount of steel balls entering the screening cylinder 1 at one time is relatively large, there may be some steel balls with smaller particle sizes that do not fall from the primary screening unit 2 at the input end but continue to roll backward. In order to avoid the accumulation of steel balls at the input end of the screening cylinder 1, an intermittent feeding assembly is also provided at the input end of the screening cylinder 1, and intermittent feeding into the screening cylinder 1 is realized following the rotation of the screening cylinder 1.
[0026] Specifically, referring to Figure 2 As shown, the intermittent feeding assembly includes a feeding hopper 5 for containing unscreened steel balls and a blanking plate 51 that fits the end of the output end of the feeding hopper 5. The blanking plate 51 is connected to the output end of the screening cylinder 1, and a number of blanking openings 52 are provided on the blanking plate 51. When the driving member 4 drives the screening cylinder 1 to rotate, the screening cylinder 1 drives the blanking plate 51 to rotate synchronously. When the blanking opening 52 rotates to be opposite to the outlet of the feeding hopper 5, the steel balls in the feeding hopper 5 can enter the screening cylinder 1 from the blanking opening 52. When the blanking plate 51 drives the blanking opening 52 to move out of alignment with the outlet of the feeding hopper 5, the blanking plate 51 blocks the outlet of the feeding hopper 5, thereby realizing intermittent feeding into the screening cylinder 1 and avoiding excessive steel ball intake from affecting the screening effect.
[0027] Furthermore, referring to Figure 3 As shown, a plurality of spoiler plates 8 are provided in the screening unit 2 at the input end of the screening cylinder 1, and the plurality of spoiler plates 8 are arranged in a staggered manner. For the steel balls initially entering the interior of the screening cylinder 1, since the steel balls are not screened and the number of steel balls is relatively larger than that in the rear screening unit 2, after being intercepted by the spoiler plates 8, the residence time of the steel balls in the primary screening unit 2 is prolonged, so that the steel balls can be screened more thoroughly and the screening effect can be improved.
[0028] Furthermore, referring to Figure 4As shown in the figure, a diversion part 9 is provided on the connecting ring 21. The diversion part 9 gradually slopes downward from the input end to the output end of the screening cylinder 1. The steel balls located at the connection between the screening channel 23 and the connecting ring 21 may be blocked by the connecting ring 21, resulting in the inability of the steel balls to continue rolling downward. Through the diversion part 9, the blocking of the connecting ring 21 on the steel balls is reduced, so that the steel balls intercepted by the screening channel 23 can easily pass through the connecting ring 21 and enter the next screening unit 2 for screening.
[0029] Among them, referring to Figure 2 As shown in the figure, a plurality of collecting net plates 6 are provided inside the dust-proof shell 3. The plurality of collecting net plates 6 correspond to the plurality of screening units 2 respectively and are used to collect steel balls of different particle sizes. The steel balls screened from the screening unit 2 will fall onto the corresponding collecting net plate 6 below, and finally be discharged through the collecting net plate 6 to separately collect the steel balls of different particle sizes screened out. During specific use, a collecting container can be provided below each collecting net plate 6 to centrally collect the screened steel balls. The collecting net plate 6 is inclined, which can make the steel balls roll downward automatically.
[0030] Furthermore, referring to Figure 1 As shown in the figure, a discharge port 7 is provided on the dust-proof shell 3, and a baffle curtain 71 is provided on the discharge port 7. Each outlet corresponds to a collecting net plate 6. When the steel balls on the collecting net plate 6 roll outwards, the baffle is pushed open, and the baffle curtain 71 can seal the discharge port 7 to a certain extent to prevent the dust inside the dust-proof shell 3 from escaping from the discharge port 7. The dust accumulated inside the dust-proof shell 3 will uniformly fall to the bottom of the dust-proof shell 3 under its own gravity. During cleaning, just open the cleaning port at the bottom of the dust-proof shell 3.
[0031] The above are only the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.
Claims
1. Steel ball screening machine, characterized in that, include; A screening drum (1), wherein the screening drum (1) is arranged obliquely downward from the input end to the output end, and the screening drum (1) is composed of a plurality of screening units (2) connected end to end, and the plurality of screening units (2) are respectively used to screen steel balls of different particle sizes; A dustproof shell (3), the dustproof shell (3) being arranged on the outside of the screening cylinder (1) and being used for collecting dust generated when the steel balls are screened; A driving member (4), wherein the driving member (4) is located at one end of the dustproof housing (3), and an output end of the driving member (4) is connected to one end of the screening drum (1) for driving the screening drum (1) to rotate; An intermittent feeding component, the intermittent feeding component is located at the input end of the screening drum (1) and follows the rotation of the screening drum (1) to realize intermittent feeding into the screening drum (1); The screening unit (2) comprises a connecting ring (21) and an intercepting rod (22) connected to the connecting ring (21); a screening channel (23) is formed between two adjacent intercepting rods (22); and the width of the screening channels (23) on the plurality of screening units (2) gradually increases in a downwardly inclined direction from the screening drum (1).
2. The steel ball screening machine according to claim 1, characterized in that: The intermittent feeding assembly comprises a feeding hopper (5) for containing unscreened steel balls and a discharge plate (51) fitted with the output end of the feeding hopper (5); the discharge plate (51) is connected to the output end of the screening drum (1), and a plurality of discharge ports (52) are provided on the discharge plate (51).
3. The steel ball screening machine according to claim 1, characterized in that: A plurality of inclined collecting mesh plates (6) are provided inside the dustproof shell (3); the plurality of collecting mesh plates (6) respectively correspond to the plurality of screening units (2) and are used to collect steel balls of different particle sizes.
4. The steel ball screening machine according to claim 1, characterized in that: The dustproof shell (3) is provided with a discharge port (7), and the discharge port (7) is provided with a blocking curtain (71).
5. The steel ball screening machine according to claim 1, characterized in that: A plurality of spoilers (8) are arranged in the screening unit (2) located at the input end of the screening drum (1), and the plurality of spoilers (8) are arranged in a staggered manner.
6. The steel ball screening machine according to claim 1, characterized in that: The connecting ring (21) is provided with a flow guide portion (9), and the flow guide portion (9) gradually tilts downward from the input end to the output end of the screening drum (1).