Ore grinding medium adding device of ball mill
By designing a ball mill grinding medium addition device including trapezoidal bucket, support beam, fixed beam, bottom plate and wire rope, the problem of the inability to control the falling speed of the steel ball in the prior art is solved, and the speed of the steel ball is controlled is realized, thereby reducing the risk of slipping pipe blockage and safety risks.
Patent Information
- Application Number
- CN202421727637.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In the prior art, the falling speed of the steel balls cannot be controlled when adding them to the grinder, resulting in a large instantaneous drop of the steel balls in the bag, causing the slippage and blockage, and there is a safety risk.
A ball mill grinding medium addition device is designed, including trapezoidal bucket, support beam, fixed beam, bottom plate and wire rope. By controlling the downward speed of the wire rope, the opening and closing degree of the bottom plate is controlled, thereby controlling the addition speed of the steel ball.
The speed and amount of steel balls are effectively controlled, the chance of slipping and pipe blockage is reduced, and the operation risks of operators are reduced.
Smart Images
Figure CN222889888U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of grinding, and relates to a grinding medium adding device for a ball mill. Background Art
[0002] Grinding in the field of grinding technology refers to the process completed by the grinding media installed in the grinding machine. The grinding media is the implementer of the crushing force, and the ore or mineral particles are hit and ground by the grinding media. Grinding is also an energy conversion process. It converts the mechanical energy transmitted by the grinding machine into the potential energy and kinetic energy of the medium. When the medium falls, it transmits the mechanical energy of the medium to the ore block, which becomes the deformation energy and fracture energy of the ore, and finally forms the new surface energy of the mineral particles. The crushing loss energy is lost to the surrounding medium space. In this process, the grinding medium plays the role of an energy medium.
[0003] At present, most mineral processing plants still rely on manual addition of steel balls. They use an overhead crane to lift the steel ball bag to the top of the ball adding port and suspend it in the air. The steel ball bag is cut open manually with a blade, and the steel balls enter the grinding mill through the ball adding port along the chute. This method has a high safety risk. There is a risk of the steel ball bag breaking during the lifting process, and this adding method cannot control the speed of steel ball addition. If the steel ball bag is cut open, the steel balls in the bag will fall instantly in a large amount, which may easily cause blockage in the chute. In addition, the safety of the operators cannot be guaranteed when the steel balls jump out at the moment of cutting the bag. Utility Model Content
[0004] The utility model aims to provide a ball mill grinding medium adding device to solve the problem that the falling speed of steel balls cannot be controlled when adding them into the grinding mill, resulting in a large amount of steel balls in the bag falling instantly and causing the chute to be blocked.
[0005] To this end, the utility model adopts the following technical solutions:
[0006] A ball mill grinding medium adding device comprises a trapezoidal bucket, the top of which is open, and each edge of the bottom is provided with a horizontally arranged support beam, wherein the sides of two symmetrically arranged support beams are provided with bottom plates, and the two are movably connected by hinges, and a horizontally arranged fixed beam is provided at the inner center of the trapezoidal bucket, and the fixed beam is cross-shaped, and a through hole is provided in the middle, and a vertically arranged steel wire rope is passed through the through hole.
[0007] Furthermore, both ends of the support beam are respectively 300 mm longer than both ends of the trapezoidal bucket.
[0008] Furthermore, one side of the bottom plate is movably connected to the support beam, and the other side is provided with a hanging ring at a position corresponding to the fixed beam.
[0009] Furthermore, a hanging ring is provided on the top of the steel wire rope, the bottom is forked, and both ends are fixedly connected to two hanging rings respectively.
[0010] Furthermore, when the two bottom plates are in a horizontal state at the same time, the bottom of the trapezoidal bucket is just blocked.
[0011] The beneficial effects of the utility model are:
[0012] The utility model can effectively control the adding speed and adding amount of the steel balls, reduce the probability of the slide pipe being blocked, and reduce the operation risk of the operators. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 for Figure 1 A partial enlarged schematic diagram of .
[0015] In the figure, 1-trapezoidal bucket, 2-support beam, 3-fixed beam, 3a-perforation, 4-bottom plate, 5-hinge, 6-hanging ring, 7-wire rope, 7a-lifting ring. DETAILED DESCRIPTION
[0016] The technical solution of the utility model is described below in conjunction with the accompanying drawings and implementation methods.
[0017] like Figure 1 As shown, a ball mill grinding medium adding device comprises a trapezoidal bucket 1, the top of which is open, and each edge of the bottom is provided with a horizontally arranged support beam 2, and both ends of the support beam 2 are respectively 300 mm longer than both ends of the trapezoidal bucket 1.
[0018] like Figure 2 As shown, two symmetrically arranged support beams 2 are provided with bottom plates 4 on their sides, and the two are movably connected via hinges 5; when the two bottom plates 4 are horizontal at the same time, the bottom of the trapezoidal bucket 1 is just blocked.
[0019] A horizontally arranged fixed beam 3 is provided at the inner center of the trapezoidal bucket 1. The fixed beam 3 is cross-shaped and has a through hole 3a in the middle thereof. A vertically arranged steel wire rope 7 is passed through the through hole 3a.
[0020] One side of the bottom plate 4 is movably connected to the support beam 2, and a hanging ring 6 is provided at the position corresponding to the fixed beam 3 on the other side. A hanging ring 7a is provided on the top of the wire rope 7, and the bottom is forked, and both ends are fixedly connected to the two hanging rings 6 respectively.
[0021] The use process of this utility model is as follows:
[0022] First, the two ends of the bottom of the steel wire rope 7 are fixedly connected to the two hanging rings 6, and the top is passed through the through hole 3a, and the steel ball bag is lifted by a crane. After the bag is broken, the steel balls are added to the trapezoidal bucket 1 to the 3 / 4 position; then, one end of the steel wire rope 7 is hung on the crane hook, and the crane lifts the device to the upper position of the ball adding port, and uses the support beam 2 to place it above the ball adding port at any position. Finally, the crane is controlled to slowly lower the steel wire rope 7. At this time, the bottom plate 4 rotates downward, and the steel balls enter the ball adding port. The opening and closing degree of the bottom plate 4 is controlled by controlling the downward degree of the steel wire rope 7, so that the speed of adding steel balls is controlled.
Claims
1. A ball mill grinding medium adding device, characterized in that: The invention comprises a trapezoidal bucket (1) having an open top and each edge of the bottom provided with a horizontally arranged support beam (2), wherein the sides of two symmetrically arranged support beams (2) are provided with bottom plates (4), and the two are movably connected via a hinge (5), and a horizontally arranged fixing beam (3) is provided at the center position of the interior of the trapezoidal bucket (1), the fixing beam (3) is in a cross shape, and a through hole (3a) is provided in the middle thereof, and a vertically arranged steel wire rope (7) is passed through the through hole (3a).
2. A ball mill grinding medium adding device according to claim 1, characterized in that: The two ends of the support beam (2) are respectively 250-400 mm longer than the two ends of the trapezoidal bucket (1).
3. A ball mill grinding medium adding device according to claim 1, characterized in that: One side of the bottom plate (4) is movably connected to the support beam (2), and a hanging ring (6) is provided at a position corresponding to the fixed beam (3) on the other side.
4. A ball mill grinding medium adding device according to claim 3, characterized in that: The top of the steel wire rope (7) is provided with a hanging ring (7a), the bottom is in a forked shape, and both ends are fixedly connected to two hanging rings (6) respectively.
5. A ball mill grinding medium adding device according to claim 1, characterized in that: When the two bottom plates (4) are in a horizontal state at the same time, the bottom of the trapezoidal bucket (1) is just blocked.