Ball mill for glass powder production

Abstract

This utility model belongs to the field of ball mill technology, specifically a ball mill for glass powder production. The device includes: an outer sleeve containing a grinding cylinder that rotates within it; several sieve plates spaced circumferentially inside the grinding cylinder; wherein the grinding cylinder is hollow, and the sieve plates have several return channels oriented axially; several sieve holes are provided between adjacent sieve plates, communicating with the interior of the grinding cylinder, and the grinding cylinder is connected to the sieve plates; and the ground material enters the grinding cylinder through the sieve holes, and when the grinding cylinder drives the corresponding sieve plate to rotate to the top of the outer sleeve, unqualified material falls back into the outer sleeve through the return channels. By using sieve holes to screen the ground material, after the material enters the grinding cylinder, unqualified material falls back into the outer sleeve through the return channels.

Description

Technical Field

[0001] This utility model belongs to the field of ball mill technology, specifically a ball mill for glass powder production. Background Technology

[0002] A ball mill consists of a horizontal cylindrical body containing grinding media. The cylinder is made of steel plate and is fixed to the body with steel liners. The grinding media are generally steel spheres, which are loaded into the cylinder in different diameters and proportions. The material is fed into the cylinder through the hollow shaft at the feed end of the ball mill. When the ball mill cylinder rotates, the grinding media, due to inertia and centrifugal force, adhere to the cylinder liner and are carried away by the cylinder. When they are carried to a certain height, they are thrown down due to their own gravity. The falling grinding media, like projectiles, crush the material inside the cylinder.

[0003] Existing ball mills first add material into the cylinder, and only after all the material has been ground are the mills stopped and the ground material discharged before new material can be added for the next batch of grinding. During the grinding process of a batch of material, qualified material will be formed one after another, but this qualified material can only be discharged after all the material has been ground, which results in the qualified material not being discharged in a timely manner. At the same time, the fine glass powder that has been ground can interfere with the grinding steel balls to grind the remaining large glass particles, which greatly reduces the grinding effect of the ball mill.

[0004] Therefore, there is an urgent need to design a ball mill for glass powder production to solve the technical problem that the ball mill cannot discharge the ground material in a timely manner.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] This disclosure provides at least one ball mill for glass powder production.

[0007] In a first aspect, embodiments of this disclosure provide a ball mill for glass powder production, comprising: an outer sleeve, wherein a grinding cylinder is rotatably disposed inside the outer sleeve;

[0008] Several sieve plates are arranged circumferentially on the inner side of the grinding cylinder;

[0009] The grinding cylinder is hollow inside, and the sieve plate has several return channels opened in the axial direction;

[0010] There are several screening holes between two adjacent screening plates. The screening holes are connected to the inside of the grinding cylinder, and the grinding cylinder is connected to the screening plates.

[0011] Furthermore, the ground material enters the grinding cylinder through the sieve hole. When the grinding cylinder drives the corresponding sieve plate to rotate to the top of the outer cylinder, the unqualified material falls back into the outer cylinder through the return channel.

[0012] In one optional embodiment, the sieve plate has a reflux chamber inside, and the grinding cylinder has a discharge chamber inside;

[0013] The discharge chamber is connected to the screen hole, and the return channel is connected to the return chamber;

[0014] In addition, the reflux chamber has several reflux sieve holes on the side facing the discharge chamber.

[0015] In one optional embodiment, the bottom of the outer sleeve is provided with a discharge port, and a plurality of discharge holes are provided on the outside of the discharge cavity.

[0016] In one optional embodiment, a plurality of guide scrapers are provided on the side of the discharge chamber near the reflux sieve holes;

[0017] The guide scraper is inclined on the side away from the return sieve holes.

[0018] In one alternative implementation, the guide scraper and the return screen holes are staggered.

[0019] In one optional embodiment, a feed ramp is provided between the reflux channel and the reflux screen holes;

[0020] The narrow opening of the feed ramp faces the direction of the return channel.

[0021] In one alternative embodiment, a plurality of elastic elements are provided at the outer end of the return channel.

[0022] Secondly, this disclosure also provides a ball mill for glass powder production, including: an outer sleeve, inside which a grinding cylinder is rotatably disposed;

[0023] Several sieve plates are arranged circumferentially on the inner side of the grinding cylinder;

[0024] The grinding cylinder is hollow inside, and the sieve plate has several return channels opened in the axial direction;

[0025] There are several screening holes between two adjacent screening plates. The screening holes are connected to the inside of the grinding cylinder, and the grinding cylinder is connected to the screening plates.

[0026] Additionally, the ground material enters the grinding cylinder through the sieve hole. When the grinding cylinder drives the corresponding sieve plate to rotate to the top of the outer cylinder, the unqualified material falls back into the outer cylinder through the return channel.

[0027] The sieve plate has a reflux chamber inside, and the grinding cylinder has a discharge chamber inside.

[0028] The discharge chamber is connected to the screen hole, and the return channel is connected to the return chamber;

[0029] In addition, the reflux chamber is provided with several reflux sieve holes on the side facing the discharge chamber;

[0030] The bottom of the outer sleeve has a discharge port, and the outer side of the discharge chamber has several discharge holes.

[0031] In one optional embodiment, a plurality of guide scrapers are provided on the side of the discharge chamber near the reflux sieve holes;

[0032] The guide scraper is inclined on the side away from the return sieve holes.

[0033] The beneficial effect of this utility model is that by setting a sieve hole to screen the ground material, after the material enters the grinding cylinder, the unqualified material falls back into the outer cylinder through the return channel.

[0034] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 A first perspective view of an outer sleeve provided in an embodiment of this disclosure;

[0038] Figure 2 A second perspective view of an outer sleeve provided in an embodiment of this disclosure;

[0039] Figure 3 This is a schematic diagram of the internal structure of an outer sleeve provided in an embodiment of the present disclosure;

[0040] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0041] Figure 5 This is a schematic diagram of the structure of a screening plate provided in an embodiment of this disclosure.

[0042] In the picture:

[0043] 1. Outer sleeve; 12. Drain outlet; 13. Drain hole;

[0044] 2. Grinding cylinder; 21. Discharge chamber; 22. Guide scraper;

[0045] 3. Screen plate; 31. Return channel; 32. Return chamber; 33. Return screen holes; 35. Feeding ramp; 36. Elastic element;

[0046] 4. Screen holes. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] Research has revealed that existing ball mills first add material into the cylinder, and only after all the material has been ground are the mills stopped and the ground material discharged before new material can be added for the next batch of grinding. During the grinding process of a batch of material, qualified material will gradually form, but this qualified material can only be discharged after all the material has been ground, resulting in the qualified material not being discharged in a timely manner. At the same time, the fine glass powder that has been ground can interfere with the grinding steel balls' ability to grind the remaining large glass particles, greatly reducing the grinding effect of the ball mill.

[0049] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure below should be considered as the inventor's contribution to this disclosure.

[0050] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the embodiments and features described below can be combined with each other. Furthermore, in the accompanying drawings, the thickness of components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0051] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] Based on the above research, and referring to Figure 1 This disclosure provides a ball mill for glass powder production, including an outer sleeve 1, a grinding cylinder 2, and several sieve plates 3. The outer sleeve 1 is hollow and suitable for feeding materials. The grinding cylinder 2 is fitted inside the outer sleeve 1 and is rotatably connected to the outer sleeve 1. The rotation of the grinding cylinder 2 causes the materials and grinding media to tumble inside, achieving the effect of grinding the materials. (Refer to...) Figure 3 Several sieve plates 3 are arranged circumferentially on the inner side of the grinding cylinder 2.

[0053] At the same time, refer to Figure 4 The grinding cylinder 2 is hollow inside, and the sieve plate 3 has several return channels 31 opened in the axial direction. Several sieve holes 4 are located between adjacent sieve plates 3, and the sieve holes 4 communicate with the inside of the grinding cylinder 2. The grinding cylinder 2 is also connected to the sieve plate 3. Material that has been thoroughly ground in the grinding cylinder 2 can enter the grinding cylinder 2 through the sieve plate 3. Then, qualified material can be discharged out of the grinding cylinder 2, while unqualified material can enter the sieve plate 3 and return to the grinding cylinder 2 through the return channels 31 for further grinding. In this way, qualified material can be screened out and discharged in a timely manner during the grinding process.

[0054] Reference Figure 4 In at least one embodiment, the screen plate 3 has a reflux chamber 32 inside, and the grinding cylinder 2 has a discharge chamber 21 inside. The discharge chamber 21 is connected to the screen hole 4, and the reflux channel 31 is connected to the reflux chamber 32. At the same time, the reflux chamber 32 has a plurality of reflux screen holes 33 on the side facing the discharge chamber 21.

[0055] Reference Figure 2 The bottom of the outer sleeve 1 is provided with a discharge port 12, as shown in the figure. Figure 4 The discharge chamber 21 has several discharge holes 13 on its outer side. That is, the material can enter the discharge chamber 21 through the screening holes 4 and then be screened. As the material enters the discharge port 12 under the action of gravity, if the material is qualified, it can be discharged from the discharge chamber 21 through the discharge holes 13. The material that cannot pass through will be transported to the top of the outer sleeve 1 under the action of the rotation of the grinding cylinder 2. Then, the material falls again under the action of gravity and enters the return chamber 32 through the return screen holes 33. Then, it enters the return channel 31 through the return chamber 32 and returns to the grinding cylinder 2 to continue grinding.

[0056] Reference Figure 4To guide the material as it rotates with the grinding cylinder 2 to the top of the outer sleeve 1, several guide scrapers 22 are provided on the side of the discharge chamber 21 near the return screen hole 33. The guide scrapers 22 are inclined on the side away from the return screen hole 33. With the above arrangement, when the grinding cylinder 2 rotates, the material that cannot pass through the discharge hole 13 can follow the rotation of the grinding cylinder 2 under the push of the guide scrapers 22 until it reaches the top of the outer sleeve 1. Then, the guide scrapers 22 guide the material to slide towards the return screen hole 33.

[0057] Reference Figure 4 The guide scraper 22 and the return screen hole 33 are staggered so that one guide scraper 22 corresponds to one return screen hole 33.

[0058] Reference Figure 4 To further guide the material towards the return channel 31, a feeding ramp 35 is provided between the return channel 31 and the return screen 33. The narrow opening of the feeding ramp 35 faces the return channel 31.

[0059] Reference Figure 5 To prevent material inside the grinding cylinder 2 from blocking the outlet of the return channel 31, several elastic elements 36 are provided at the outer end of the return channel 31. When material inside the grinding cylinder 2 impacts the return channel 31 from the outside, the elastic elements 36 eject the material outward, thereby preventing the material from blocking the return channel.

[0060] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Based on the above-described ideal embodiments of this utility model, and through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification; its technical scope must be determined by the scope of the claims.

Claims

1. A ball mill for glass powder production, characterized in that, include: The outer sleeve (1) has a grinding cylinder (2) rotatably installed inside it; Several sieve plates (3) are arranged circumferentially on the inner side of the grinding cylinder (2); The grinding cylinder (2) is hollow inside, and the sieve plate (3) is provided with several return channels (31) in the axial direction. There are several screening holes (4) between two adjacent screening plates (3), and the screening holes (4) are connected to the inside of the grinding cylinder (2), and the grinding cylinder (2) is connected to the screening plate (3); Furthermore, the ground material enters the grinding cylinder (2) through the sieve hole (4). When the grinding cylinder (2) drives the corresponding sieve plate (3) to rotate to the top of the outer sleeve (1), the unqualified material falls back into the outer sleeve (1) through the return channel (31).

2. The ball mill for glass powder production as described in claim 1, characterized in that, The screen plate (3) has a reflux chamber (32) inside, and the grinding cylinder (2) has a discharge chamber (21) inside. The discharge chamber (21) is connected to the screen hole (4), and the return channel (31) is connected to the return chamber (32); In addition, the reflux chamber (32) has several reflux sieve holes (33) on the side facing the discharge chamber (21).

3. The ball mill for glass powder production as described in claim 1, characterized in that, The bottom of the outer sleeve (1) is provided with a discharge port (12), and a number of discharge holes (13) are provided on the outside of the discharge chamber (21).

4. The ball mill for glass powder production as described in claim 2, characterized in that, The discharge chamber (21) is provided with several guide scrapers (22) on the side near the return screen hole (33); The guide scraper (22) is inclined on the side away from the return sieve hole (33).

5. The ball mill for glass powder production as described in claim 4, characterized in that, The guide scraper (22) and the return sieve hole (33) are arranged alternately.

6. The ball mill for glass powder production as described in claim 2, characterized in that, A feed ramp (35) is provided between the return channel (31) and the return screen hole (33); The narrow opening of the feed ramp (35) faces the return channel (31).

7. The ball mill for glass powder production as described in claim 1, characterized in that, The outer end of the return channel (31) is provided with several elastic elements (36).

8. A ball mill for glass powder production, characterized in that, include: The outer sleeve (1) has a grinding cylinder (2) rotatably installed inside it; Several sieve plates (3) are arranged circumferentially on the inner side of the grinding cylinder (2); The grinding cylinder (2) is hollow inside, and the sieve plate (3) is provided with several return channels (31) in the axial direction. There are several screening holes (4) between two adjacent screening plates (3), and the screening holes (4) are connected to the inside of the grinding cylinder (2), and the grinding cylinder (2) is connected to the screening plate (3); And, the ground material enters the grinding cylinder (2) through the screen hole (4). When the grinding cylinder (2) drives the corresponding screen plate (3) to rotate to the top of the outer sleeve (1), the unqualified material falls back into the outer sleeve (1) through the return channel (31). The screen plate (3) has a reflux chamber (32) inside, and the grinding cylinder (2) has a discharge chamber (21) inside. The discharge chamber (21) is connected to the screen hole (4), and the return channel (31) is connected to the return chamber (32); In addition, the reflux chamber (32) has a plurality of reflux sieve holes (33) on the side facing the discharge chamber (21); The bottom of the outer sleeve (1) is provided with a discharge port (12), and a number of discharge holes (13) are provided on the outside of the discharge chamber (21).

9. The ball mill for glass powder production as described in claim 8, characterized in that, The discharge chamber (21) is provided with several guide scrapers (22) on the side near the return screen hole (33); The guide scraper (22) is inclined on the side away from the return sieve hole (33).

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