Broken ball throwing device of ball mill for lead ore processing
By introducing a screening unit and a power unit into the ball mill, the problem of low ball breakage removal rate in existing devices has been solved, achieving efficient removal of small broken balls and improving the working efficiency and lifespan of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-03
AI Technical Summary
Existing ball mills used for lead ore processing employ magnetic separation or gravity separation methods to remove broken balls, resulting in low ball removal rates.
The system employs a throwing mechanism within the housing, comprising a screening unit and a power unit. It throws small balls through the vibration of the first and second screen plates mounted on a rotating shaft, combined with the inclined design of the guide plate, thereby improving the throwing efficiency of small balls.
It improves the efficiency of removing small balls, prevents small balls from accumulating or slipping off the edge of the screen plate, extends the service life of the equipment, and reduces energy consumption.
Smart Images

Figure CN224072630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lead ore processing technology, specifically to a ball mill device for removing small broken balls in lead ore processing. Background Technology
[0002] In metallurgical and chemical production processes, ball mills are typically used for the crushing and grinding of minerals. Semi-autogenous grinding systems are ore pretreatment systems widely promoted and applied in non-ferrous metal mines both domestically and internationally, renowned for their high efficiency and energy saving. The system consists of two loops: a crushing loop and a classifying grinding loop.
[0003] According to the patent titled "A Ball Mill Crushed Ball Separation and Picking Device" (Patent Publication No.: CN201537527U, Patent Publication Date: 2010-08-04), it includes: a crushed ball lifting cylinder that matches and is connected to the stop on the mill discharge liner; a magnetic system with equidistant gaps located on the outside of the crushed ball lifting cylinder; a magnetic system base fixed to the inside of the magnetic system yoke; a discharge pipe connected to the flange at the other end of the crushed ball lifting cylinder; and a crushed ball discharge trough with its upper open end gap located at the top of the inner side of the crushed ball lifting cylinder. By adopting the above technical solution, crushed balls can be effectively removed immediately upon discharge with the slurry, thus avoiding "iron overflow" accidents in the subsequent cone crusher. It also prevents smaller mill crushed balls from entering the classifying grinding circuit through the stone screen, causing wear on the slurry tank, sand pump, hydrocyclone, and connecting pipelines, greatly improving their service life, increasing the mill's working efficiency, and reducing energy consumption.
[0004] Based on the aforementioned existing technology, the existing ball mill ... Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a ball mill device for removing broken balls in lead ore processing. This device solves the following problems that existing ball mill devices for removing broken balls in lead ore processing still have: traditional ball mill devices for removing broken balls usually use magnetic separation or gravity separation, resulting in a low removal rate of broken balls.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a ball mill device for removing broken balls in lead ore processing, comprising a housing, wherein a ball-removing mechanism is provided inside the housing to improve the ball-removing efficiency, the ball-removing mechanism comprising:
[0007] The screening unit is located inside the housing and includes a rotating shaft. The shaft is fixedly mounted with a first screen plate and a second screen plate. The first screen plate and the second screen plate are vibrated by a power unit to achieve vibration and removal of small balls, thereby improving the removal efficiency of small balls.
[0008] The power unit is located inside the housing and is used to drive the vibration of the screening unit.
[0009] Preferably, a set of diversion plates is fixedly installed inside the box, and the diversion plates are installed above the first sieve plate and the second sieve plate to guide the balls.
[0010] Preferably, the power unit includes two cross grooves formed inside the front and rear walls of the housing. A set of sliding plates is slidably installed inside the cross grooves. A connecting block is fixedly installed on the outside of the sliding plate, and a connecting rod is fixedly installed on the outside of the connecting block, for realizing synchronous movement of the first screen plate and the second screen plate.
[0011] Preferably, a linkage rod is rotatably connected to the upper outer side of the connecting rod, a slide groove is fixedly installed on the inner side of the slide plate, and a drive assembly is provided above the linkage rod.
[0012] Preferably, sliding columns are provided on both the front and rear sides of the first sieve plate and the second sieve plate, and the sliding groove is located inside the sliding column to adapt to sliding.
[0013] Preferably, the drive assembly includes a set of base plates fixedly installed inside the housing. A dual-axis motor is fixedly installed on the top of the base plates. Both ends of the dual-axis motor have turntables fixedly installed through the housing. A connecting shaft is fixedly installed on the outer side of the turntable near the edge, and the turntable is rotatably connected to one end of the linkage rod through the connecting shaft.
[0014] This invention provides a device for removing small broken balls from a ball mill in lead ore processing. Compared with the prior art, it has the following advantages:
[0015] 1. This ball mill device for removing small broken balls in lead ore processing uses a dual-shaft motor to drive a turntable to rotate. The turntable moves up and down via a connecting shaft and a linkage rod. The connecting rod moves synchronously via a connecting block and a sliding plate. The sliding plate causes the sliding groove to slide inside the sliding column, so that the first screen plate and the second screen plate rotate up and down around the rotating shaft. This vibrates the first screen plate and the second screen plate to remove small broken balls, thus improving the removal efficiency of small broken balls.
[0016] 2. The ball mill for lead ore processing has a device for removing small balls. The guide plate installed above the screen plate uses an inclined guide design to accurately guide the mixture to the effective area of the screen surface, preventing small balls from accumulating at the edge of the screen plate or sliding directly off. Attached Figure Description
[0017] Figure 1 This is a right-side perspective view of the structure of this utility model;
[0018] Figure 2 This is a partial three-dimensional structural diagram of the present invention;
[0019] Figure 3 This is a cross-sectional perspective view of the present invention.
[0020] Figure 4 This is a partial cross-sectional perspective view of the present invention.
[0021] In the diagram: 1-box body, 2-discarding mechanism, 21-screening unit, 211-rotating shaft, 212-first screen plate, 213-drainage plate, 214-second screen plate, 22-power unit, 221-cross groove, 222-slide plate, 223-connecting block, 224-connecting rod, 225-linkage rod, 226-sliding column, 227-sliding groove, 3-drive assembly, 31-base plate, 32-dual-axis motor, 33-turntable, 34-connecting shaft. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-4 This utility model provides a technical solution:
[0024] A ball mill device for removing broken balls in lead ore processing includes a housing 1. The housing 1 contains a ball-removing mechanism 2 to improve the efficiency of ball-removing. The ball-removing mechanism 2 includes:
[0025] The screening unit 21 is located inside the housing 1 and includes a rotating shaft 211. The shaft 211 is fixedly mounted with a first screen plate 212 and a second screen plate 214. The first screen plate 212 and the second screen plate 214 are shaken by the power unit 22 to achieve vibration and removal of small balls, thereby improving the removal efficiency of small balls.
[0026] The power unit 22 is located inside the housing 1 and is used to drive the screening unit 21 to vibrate.
[0027] The first sieve plate 212 and the second sieve plate 214 rotate up and down around the pivot 211, thereby vibrating the first sieve plate 212 and the second sieve plate 214 to remove small broken balls, thus improving the efficiency of removing small broken balls.
[0028] In this embodiment, a set of diversion plates 213 are fixedly installed inside the box 1, and the diversion plates 213 are installed above the first sieve plate 212 and the second sieve plate 214 to guide the small balls.
[0029] The guide plate 213 installed above the screen plate uses an inclined guide design to precisely guide the mixed material to the effective area of the screen surface, avoiding the accumulation of small balls at the edge of the screen plate or their direct slippage.
[0030] In this embodiment, the power unit 22 includes two cross grooves 221 formed inside the front and rear walls of the housing 1. A set of slide plates 222 are slidably installed inside the cross grooves 221. A connecting block 223 is fixedly installed on the outside of the slide plate 222, and a connecting rod 224 is fixedly installed on the outside of the connecting block 223, which is used to realize the synchronous movement of the first screen plate 212 and the second screen plate 214.
[0031] In this embodiment, a linkage rod 225 is rotatably connected to the upper outer side of the connecting rod 224, a slide groove 227 is fixedly installed on the inner side of the slide plate 222, and a drive assembly 3 is provided above the linkage rod 225.
[0032] In this embodiment, sliding columns 226 are provided on both the front and rear sides of the first sieve plate 212 and the second sieve plate 214, and the sliding groove 227 is located inside the sliding column 226 to adapt to sliding.
[0033] The connecting rod 224 drives the slide plate 222 to move synchronously through the connecting block 223. The slide plate 222 drives the slide groove 227 to slide inside the slide column 226, so that the first screen plate 212 and the second screen plate 214 rotate up and down around the pivot 211.
[0034] In this embodiment, the drive assembly 3 includes a set of base plates 31 fixedly installed inside the housing 1. A dual-axis motor 32 is fixedly installed on the top of the base plate 31. Both output shafts of the dual-axis motor 32 pass through the housing 1 and are fixedly installed with turntables 33. A connecting shaft 34 is fixedly installed on the outer side of the turntable 33 near the edge, and the turntable 33 is rotatably connected to one end of the linkage rod 225 through the connecting shaft 34.
[0035] The dual-axis motor 32, model CTD41A, is electrically connected to an external power source and is operated by a human-controlled control panel. The operation of the dual-axis motor 32 drives the turntable 33 to rotate, and the turntable 33 drives the connecting rod 224 to move up and down through the connecting shaft 34 and the linkage rod 225.
[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0037] During operation, small and intact balls enter the area above the first screen plate 212. The dual-shaft motor 32 drives the turntable 33 to rotate. The turntable 33 drives the connecting rod 224 to move up and down through the connecting shaft 34 and the linkage rod 225. The connecting rod 224 drives the sliding plate 222 to move synchronously through the connecting block 223. The sliding plate 222 drives the sliding groove 227 to slide inside the sliding column 226, so that the first screen plate 212 and the second screen plate 214 rotate up and down around the rotating shaft 211. The first screen plate 212 throws out the small balls, and the second screen plate 214 separates the small balls from the debris.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for throwing out small balls from a ball mill for processing lead ore, comprising a box (1), characterized in that: The inside of the box (1) is provided with a throwing mechanism (2) for improving the throwing efficiency of the small balls, the throwing mechanism (2) comprises: The screening unit (21) is arranged in the inside of the box (1) and comprises a rotating shaft (211) rotatably arranged in the box (1), and the rotating shaft (211) is fixedly provided with a first sieve plate (212) and a second sieve plate (214) respectively, the first sieve plate (212) and the second sieve plate (214) are shaken by the power unit (22), the vibration throwing of the small balls is realized, and the throwing efficiency of the small balls is improved. The power unit (22) is arranged in the inside of the box (1) and is used for driving the screening unit (21) to vibrate.
2. A device for removing small balls from a ball mill for processing lead ore according to claim 1, characterized in that: A group of drainage plates (213) are fixedly arranged in the inside of the box (1) and are arranged above the first sieve plate (212) and the second sieve plate (214) and are used for guiding the small balls.
3. A device for removing small balls from a ball mill for processing lead ore according to claim 1, characterized in that: The power unit (22) comprises two cross grooves (221) formed in the inside of the front and rear walls of the box (1), a group of sliding plates (222) are slidably arranged in the inside of the cross grooves (221), connecting blocks (223) are fixedly arranged on the outer sides of the sliding plates (222), connecting rods (224) are fixedly arranged on the outer sides of the connecting blocks (223), and the first sieve plate (212) and the second sieve plate (214) are synchronously moved.
4. A device for rejecting undersized balls from a ball mill used in processing lead ores according to claim 3, characterized in that: The outer side of the connecting rod (224) is rotatably connected with a linkage rod (225), the inner side of the sliding plate (222) is fixedly arranged with a sliding groove (227), and the upper side of the linkage rod (225) is provided with a driving assembly (3).
5. A device for rejecting undersized balls from a ball mill for processing lead ores according to claim 4, characterised in that: The front and rear sides of the first sieve plate (212) and the second sieve plate (214) are provided with sliding columns (226), and the sliding groove (227) is adaptedly arranged in the sliding column (226).
6. A device for rejecting undersized balls from a ball mill for processing lead ore according to claim 4, characterised in that: The driving assembly (3) comprises a group of base plates (31) fixedly arranged in the inside of the box (1), double-shaft motors (32) are fixedly arranged on the top of the base plates (31), rotating discs (33) are fixedly arranged on the two end output shafts of the double-shaft motors (32) and penetrate through the box (1), connecting shafts (34) are fixedly arranged on the outer side of the rotating discs (33) and are close to the edges, and the rotating discs (33) are rotatably connected with one end of the linkage rod (225) through the connecting shafts (34).
Citation Information
Patent Citations
Ball mill failed spheres separating sorting device
CN201537527U