Double-end combined feeder of light-weight long-service-life ball mill
By using a ball mill feeder made of wear-resistant alloy plates, the existing feeder has been solved, the problems of heavy, poor wear resistance and short service life are achieved, and the effects of weight reduction, easy assembly and extended life are achieved, and production costs and labor intensity are reduced.
Patent Information
- Application Number
- CN202421290019.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The existing ball mill feeder is bulky overall, and it is difficult for workers to assemble and operate. Due to the poor wear resistance of the casting material, the short service life is short, and frequent replacements are harmful to economic benefits.
The feeding body, feeding cover, guide plate and spoon body are made of wear-resistant alloy plates. The welding and forming connections are used to reduce machine steps and reduce weight and cost.
The weight of the feeder is reduced by more than 60%, the workers are assembled and operated easily and quickly, and the life span is increased to 10-15 months, which reduces replacement and maintenance costs, and improves the equipment operation rate and production efficiency.
Smart Images
Figure CN222658807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ball mill components, in particular to a lightweight and long-life double-head combined feeder for a ball mill. Background Art
[0002] In the mineral processing process, the ball mill is located after the cone crusher. Its function is to grind the output of the cone crusher (diameter particle size range: 20-25mm) into a particle size of 0.075-0.4mm. To a certain extent, the smaller the grinding fineness, the higher the recovery rate of the mineral. Therefore, appropriately reducing the grinding fineness of the ore can greatly increase the recovery rate and output of the mineral. At present, most ball mill grinding processes are wet mineral processing, that is, the grinding is circulated in a closed circuit. The materials with qualified particle size enter the next process, and the materials with unqualified particle size are returned to the ball mill as coarse sand and repeatedly ground until they are qualified.
[0003] At present, the commonly used ball mill feeder is as follows Figure 4 As shown, it includes a feeder body and a feeder cover made of cast steel parts. The interface joint surfaces of the feeder body and the feeder cover are machined and connected to form a feeder body by bolts. Spoon bodies made of steel structural parts are respectively provided on both sides of the feeder body. The flange surfaces of the spoon body and the feeder body are machined and connected to form a whole by bolts.
[0004] The above-mentioned ball mill feeder has the following disadvantages: 1. The feeder is bulky as a whole, and it is difficult for workers to assemble and operate; 2. The casting material used for the feeder body and feeder cover is ZG270-500, which is characterized by high strength, which can reach more than 500Mpa, but this material is not wear-resistant. Generally, the average service life of the online service is about 3-6 months, which is short. The frequency of stopping the equipment to replace the feeder is high, which is detrimental to the economic benefits of the enterprise. Utility Model Content
[0005] The utility model aims to provide a lightweight and long-life ball mill double-head combined feeder to solve the technical problems of the prior art, such as heavy weight, difficulty in installation by workers, poor wear resistance and short service life.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0007] A lightweight and long-life ball mill double-head combined feeder comprises a feed body, a feed cover is provided on one side of the feed body, a feed port is provided on the feed cover, a discharge port is provided on the other side of the feed body, and the feed port and the discharge port are connected to each other; two scoop bodies are welded on the outside of the feed body, and two opposed guide plates are provided inside the feed body, and the two guide plates can transport ore to the discharge port; the feed body, the feed cover, the guide plate and the scoop body are all made of wear-resistant alloy plates.
[0008] Furthermore, the two scoop bodies are semicircular, and the two scoop bodies are symmetrical about the center of the feeding body.
[0009] Furthermore, the two guide plates are in a snail shape, are symmetrical about the center of the feed body, one end of the two guide plates coincides with the center of the feed body, and the other ends of the two guide plates are inscribed in the inner walls of the two spoon bodies respectively.
[0010] Furthermore, a connecting mechanism is provided at the discharge port of the feed body, and the connecting mechanism is used to connect to the ball mill.
[0011] Furthermore, the feed cover is in a conical bucket shape, the large diameter end of the feed cover is welded to the feed body, and the feed inlet is arranged at the small diameter end of the feed cover.
[0012] Compared with the prior art, the utility model has the following beneficial technical effects:
[0013] The feeder body, feeder cover, guide plate and spoon body of the utility model are all made of wear-resistant alloy plates. The various components are formed by welding. No machining is required during the assembly process, which can save machining costs. Compared with the existing feeders made by casting and flange connection processes, the overall weight is reduced by more than 60%, and the assembly operation by workers is convenient and quick. In addition, since the wear resistance of the wear-resistant alloy plate is better than that of the casting, the life of the feeder can be increased to 10-15 months, which is 3-5 times the life of the existing feeder, greatly reducing the replacement and maintenance costs, reducing the labor intensity of workers, and is conducive to improving the operation rate of the equipment and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a side view of the utility model;
[0015] Figure 2 It is a front view of the utility model;
[0016] Figure 3 It is a partial structural schematic diagram of the utility model;
[0017] Figure 4 It is a structural schematic diagram of an existing ball mill feeder. DETAILED DESCRIPTION
[0018] The following is further described in detail through specific implementation methods:
[0019] The reference numerals in the drawings of the specification include: a feed body 1 , a discharge port 11 , a guide plate 12 , a feed cover 2 , a feed port 21 , a spoon body 3 , and a connecting mechanism 4 . Example
[0020] like Figure 1-2As shown, a lightweight and long-life double-head combined feeder for a ball mill includes a feed body 1, a feed cover 2 is provided on one side of the feed body 1, the feed cover 2 is in a conical bucket shape, the large diameter end of the feed cover 2 is welded to the feed body 1, the small diameter end of the feed cover 2 is provided with a feed port 21, and the other side of the feed body 1 is provided with a discharge port 11, and the feed port 21 is connected to the discharge port 11. Among them, the feed body 1, the feed cover 2, the guide plate 12 and the spoon body 3 are all made of wear-resistant alloy plates (commercially available iron-based wear-resistant alloy plates, nickel-based wear-resistant alloy plates, cobalt-based wear-resistant alloy plates or tungsten carbide wear-resistant alloy plates can be selected).
[0021] Two scoop bodies 3 are welded to the outside of the feed body 1. The two scoop bodies 3 are semicircular and symmetrical about the center of the feed body 1. The scoop bodies 3 can feed the coarse sand with unqualified particle size into the ball mill again for re-grinding, and the process is repeated over and over again until the particle size of the ore is completely qualified.
[0022] The feed cover 2 and the spoon body 3 of the present embodiment are connected to the feed body 1 by welding, so that the feeder does not need machining during the assembly process, which can save machining costs.
[0023] Two guide plates 12 are arranged inside the feed body 1, which can transport the ore to the discharge port 11 and are lined with each other. The two guide plates 12 are both in a snail shape and are symmetrical about the center of the feed body 1, which increases the feeding efficiency of the ore and can improve the grinding speed of the ball mill; one end of the two guide plates 12 coincides with the center of the feed body 1, and the other ends of the two guide plates 12 are inscribed in the inner walls of the two scoop bodies 3 respectively, and the wedging angle of the guide plates 12 gradually decreases, which ensures the smoothness of the ore feeding and delays the impact of the ore on the scoop body 3. Figure 3 )'s partitions are distributed in equal circles, and the impact of the ore on the feeder body is relatively large.
[0024] Compared with the prior art, the overall weight of the feeder of this embodiment can be reduced by more than 60%, and the assembly operation is convenient and quick for workers. In addition, since the wear resistance of the wear-resistant alloy plate is better than that of the casting, the life of the feeder can be increased to 10-15 months, which is 3-5 times the life of the existing feeder. This greatly reduces the cost of replacement and maintenance, reduces the labor intensity of workers, and is conducive to improving the operation rate of the equipment and saving production costs.
[0025] like Figure 3 As shown, a connection mechanism 4 for connecting to a ball mill is provided at the discharge port 11 of the feed body 1. The connection mechanism 4 in this embodiment is a connecting flange.
[0026] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A lightweight and long-life ball mill double-head combined feeder, characterized by: It includes a feed body, a feed cover is provided on one side of the feed body, a feed port is provided on the feed cover, a discharge port is provided on the other side of the feed body, and the feed port and the discharge port are connected to each other; two scoop bodies are welded on the outside of the feed body, and two opposed guide plates are provided inside the feed body, and the two guide plates can transport the ore to the discharge port; the feed body, the feed cover, the guide plate and the scoop body are all made of wear-resistant alloy plates.
2. The lightweight and long-life double-head combined feeder for a ball mill according to claim 1 is characterized by: The two scoop bodies are semicircular and symmetrical about the center of the feeding body.
3. The lightweight and long-life double-head combined feeder for a ball mill according to claim 2 is characterized by: The two guide plates are in a snail shape and are symmetrical about the center of the feed body. One end of the two guide plates coincides with the center of the feed body, and the other ends of the two guide plates are inscribed in the inner walls of the two spoon bodies respectively.
4. The lightweight and long-life double-head combined feeder for a ball mill according to claim 1 is characterized by: A connecting mechanism is provided at the discharge port of the feed body, and the connecting mechanism is used to connect to the ball mill.
5. The lightweight and long-life double-head combined feeder for a ball mill according to claim 1 is characterized by: The feed cover is in a conical bucket shape, the large diameter end of the feed cover is welded on the feed body, and the feed inlet is arranged at the small diameter end of the feed cover.