A grinding device for mine filling cemented powder

Abstract

The utility model discloses a kind of for mine filling glue solid powder's powder grinding device, it is related to glue solid powder powder grinding equipment field, and it includes: mounting bracket;Shell, setting on mounting bracket, and its inside from top to bottom are sequentially provided with mutually communicating square working cavity one, conical working cavity two, circular working cavity three and circular working cavity four;Pre-pulverization component, setting in working cavity one;Powder grinding lining board one, setting in working cavity two and working cavity three inner wall, to form a continuous powder grinding layer one in working cavity two and working cavity three inner wall;Powder grinding roller component, setting in powder grinding layer one inside, and form a continuous powder grinding pass between powder grinding layer one, and upper part diameter of powder grinding pass is gradually reduced setting, lower part diameter constant setting;Driving component, setting in working cavity three and forming a lower channel between working cavity, and driving component is connected with powder grinding roller component.This device realizes the continuous step-by-step powder grinding operation of glue solid powder material, and powder grinding efficiency is high, and popularization is strong.

Description

Technical Field

[0001] This utility model relates to the field of cementitious powder grinding equipment, and more specifically, to a grinding device for cementitious powder used for filling mines. Background Technology

[0002] Cementitious powder is a new type of cementitious material used for filling underground mines or mines. It uses tailings as aggregate and cement as binder. Cementitious powder has the advantages of low water content, strong natural water reduction, high density, fast water penetration, good viscosity and strong water resistance. It is widely used in mine filling, underground grouting, road construction and other fields.

[0003] Existing grinding equipment for mine backfill cement powder often employs a batch grinding method. During operation, a batch of cement powder is injected into the grinding equipment, and after that batch is ground, it is introduced back in, and then a new batch of cement powder is injected again. This grinding method has low operating efficiency and cannot achieve continuous grinding operations. Therefore, a continuous grinding equipment for mine backfill cement powder is needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a grinding device for filling cement powder in mines.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A grinding device for mine backfill cement powder, comprising:

[0007] Mounting rack;

[0008] The housing is mounted on a mounting bracket, and its interior is provided with, from top to bottom, interconnected square working cavity 1, conical working cavity 2, circular working cavity 3 and circular working cavity 4;

[0009] The pre-crushing component is located inside the working chamber.

[0010] Grinding liner 1 is disposed on the inner wall of working chamber 2 and working chamber 3 to form a continuous grinding layer 1 on the inner wall of working chamber 2 and working chamber 3;

[0011] The grinding roller assembly is disposed inside the grinding layer and forms a continuous grinding channel with the grinding layer. The diameter of the upper part of the grinding channel decreases gradually, while the diameter of the lower part remains constant.

[0012] The drive assembly is located inside the working chamber and forms a feeding channel between the working chamber and the working chamber. The drive assembly is connected to the grinding roller assembly.

[0013] Furthermore, in the above scheme, the pre-crushing component includes:

[0014] Two crushing rollers are arranged in parallel and rotatably inside the working chamber, and the ends of the rotating shafts of the two crushing rollers extend to the outside of the housing;

[0015] Gear structure one, connected to the rotating shaft of two crushing rollers;

[0016] Gear structure two, connected to one of the crushing roller rotating shafts;

[0017] The crushing motor is connected to gear structure two.

[0018] Furthermore, the above-described solution includes:

[0019] Grinding roller one is conical and located inside working chamber two;

[0020] Grinding roller 2 is circular and located inside working chamber 3, and is connected to the bottom end of grinding roller 1;

[0021] The second grinding liner is disposed on the outer wall of the first grinding roller and the second grinding roller to form a continuous grinding layer 2 on the outer wall of the first grinding roller and the second grinding roller, and a continuous grinding channel is formed between the second grinding layer and the first grinding layer.

[0022] Furthermore, the above-described solution further includes:

[0023] The feeding platform is conical and located at the top of the grinding roller and directly below the two crushing rollers.

[0024] Furthermore, in the above solution, the driving component includes:

[0025] There are four support rods arranged circumferentially within the working chamber;

[0026] The mounting plate is connected to the four support rods and is located directly below the grinding channel;

[0027] The drive motor is mounted on the mounting plate.

[0028] The rotating shaft is connected to the drive motor at one end and to the grinding roller at the other end.

[0029] Furthermore, in the above scheme, the diameter of the rotating shaft is smaller than the diameter of the grinding roller.

[0030] Furthermore, the above solution includes a conical feed shell on the mounting plate, which covers the outside of the drive motor and is sleeved on the outside of the rotating shaft.

[0031] Furthermore, in the above scheme, the bottom diameter of the feed shell is the same as the diameter of the mounting plate.

[0032] Compared with the prior art, the beneficial effects of this utility model are:

[0033] This utility model improves the shell by designing a pre-crushing component, a grinding liner, a grinding roller component, and a drive component inside the shell, thereby realizing continuous step-by-step grinding of cementitious powder materials. The ground material falls directly to the outside of the shell, which greatly improves the grinding efficiency and has better performance. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This is a schematic diagram of the shell structure;

[0036] Figure 3 for Figure 1 A magnified view of part A in the diagram;

[0037] Figure 4 This is a schematic diagram showing the installation position of the feed shell;

[0038] Figure 5 This is a schematic diagram of the feed shell structure;

[0039] Figure 6 for Figure 4 A magnified view of part B in the diagram;

[0040] The components are as follows: 1. Mounting frame; 2. Housing; 21. Working chamber one; 22. Working chamber two; 23. Working chamber three; 24. Working chamber four; 3. Pre-crushing assembly; 31. Crushing roller; 32. Gear structure one; 33. Gear structure two; 34. Crushing motor; 4. Grinding liner one; 5. Grinding roller assembly; 51. Grinding roller one; 52. Grinding roller two; 53. Grinding liner two; 54. Feeding platform; 6. Drive assembly; 61. Support rod; 62. Mounting plate; 63. Drive motor; 64. Rotating shaft; 7. Feeding shell. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0042] See attached document Figure 1 and attached Figure 2 As shown, a grinding device for mine backfill cement powder includes:

[0043] Mounting bracket 1 is placed on the ground to support the installation.

[0044] The housing 2 is mounted on the mounting bracket 1, and its interior is provided with, from top to bottom, interconnected square working cavity 1 21, conical working cavity 22, circular working cavity 3 23 and circular working cavity 4 24;

[0045] The pre-crushing component 3 is installed in the working chamber 21 to perform preliminary crushing of the material;

[0046] Grinding liner 4 is disposed on the inner wall of working chamber 22 and working chamber 3 23 to form a continuous grinding layer 1 on the inner wall of working chamber 22 and working chamber 3 23.

[0047] The grinding roller assembly 5 is disposed inside the grinding layer 1 and forms a continuous grinding channel with the grinding layer 1. The diameter of the upper part of the grinding channel decreases gradually, while the diameter of the lower part remains constant.

[0048] The drive assembly 6 is located in the working chamber 23 and forms a feeding channel with the working chamber. The drive assembly 6 is connected to the grinding roller assembly 5 so that the operation of the drive assembly 6 causes the grinding roller assembly 5 to rotate inside the grinding layer, thereby realizing continuous grinding operation.

[0049] In the specific implementation of this utility model, the material is fed into the working chamber 21, and then is initially crushed by the pre-crushing component 3. Then, due to its own gravity, it falls directly into the grinding channel. Under the action of the driving component 6, the grinding roller component 5 rotates inside the grinding layer, and finally realizes the continuous step-by-step grinding operation of the material. The ground material falls directly to the outside of the shell 2 through the discharge channel.

[0050] Regarding the specific structure of the pre-crushing component 3 in the above scheme, please refer to the appendix. Figure 1 As shown:

[0051] Pre-crushing component 3 includes:

[0052] Two crushing rollers 31 are arranged in parallel and rotatably inside the working chamber 21, and the ends of the rotating shafts of the two crushing rollers 31 extend to the outside of the housing 2.

[0053] Gear structure 32 is connected to the rotating shaft of the two crushing rollers 31 so that the two crushing rollers 31 are linked together;

[0054] Gear structure 2 33 is connected to the rotating shaft of one of the crushing rollers 31;

[0055] The crushing motor 34 is connected to the gear structure 33 so that the operation of the crushing motor 34 causes the two crushing rollers 31 to rotate inward simultaneously, and finally the two crushing rollers 31 start the crushing action.

[0056] Regarding the specific structure of the grinding roller assembly 5 in the above scheme, please refer to the appendix. Figure 1 and attached Figure 3 As shown:

[0057] The grinding roller assembly 5 includes:

[0058] The grinding roller 51 is conical and located inside the working chamber 22;

[0059] Grinding roller 2 52 is circular and located inside working chamber 3 23, and is connected to the bottom end of grinding roller 1 51;

[0060] Grinding liner 2 53 is disposed on the outer wall of grinding roller 1 51 and grinding roller 2 52 to form a continuous grinding layer 2 on the outer wall of grinding roller 1 51 and grinding roller 2 52, and a continuous grinding channel is formed between grinding layer 2 and grinding layer 1.

[0061] In addition, considering that the material can enter the grinding channel evenly after being crushed by the pre-crushing component 3, therefore, refer to the attached... Figure 1 As shown, the grinding roller assembly 5 also includes:

[0062] The feeding platform 54 is conical and is located on top of the grinding roller 51 and directly below the two crushing rollers 31. This allows the material, after being crushed by the pre-crushing component 3, to be subjected to the action of the rotating feeding platform 54 before entering the grinding channel. This allows the material to be subjected to centrifugal force while the feeding platform 54 naturally guides the material from top to bottom and expands outward, thereby uniformly guiding the material into the grinding channel.

[0063] Regarding the specific structure of the driving component 6 in the above scheme, please refer to the appendix. Figure 1 and attached Figure 3 As shown:

[0064] Driver component 6 includes:

[0065] Support rod 61, there are four rods and they are arranged circumferentially inside the working cavity 24;

[0066] Mounting plate 62 is connected to four support rods 61 and is located directly below the grinding channel;

[0067] The drive motor 63 is mounted on the mounting plate 62;

[0068] The rotating shaft 64 is connected to the drive motor 63 at one end and to the grinding roller 52 at the other end, so that the drive motor 63 operates to drive the rotating shaft 64 to rotate, and finally the grinding roller assembly 5 rotates. The diameter of the rotating shaft 64 is smaller than the diameter of the grinding roller 52 to reduce the obstruction to the material and improve the feeding effect.

[0069] In the above scheme, considering the material feeding effect, therefore, refer to the appendix. Figure 4 -Appendix Figure 6 As shown, a conical feeding shell 7 is provided on the mounting plate 62. The feeding shell 7 covers the outside of the drive motor 63 and is sleeved on the outside of the rotating shaft 64. The bottom diameter of the feeding shell 7 is the same as the diameter of the mounting plate 62, so that during the feeding process, the material is guided by the feeding shell 7 and dispersed before being fed out, and will not accumulate on the drive motor 63 and the mounting plate 62.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A grinding device for cementitious powder used in mine backfilling, characterized in that: include: Mounting bracket (1); The housing (2) is mounted on the mounting bracket (1), and its interior is provided with a square working cavity 1 (21), a conical working cavity 2 (22), a circular working cavity 3 (23) and a circular working cavity 4 (24) connected to each other from top to bottom; The pre-crushing component (3) is disposed in the working chamber (21); Grinding liner 1 (4) is disposed on the inner wall of working chamber 2 (22) and working chamber 3 (23) to form a continuous grinding layer 1 on the inner wall of working chamber 2 (22) and working chamber 3 (23); The grinding roller assembly (5) is disposed inside the grinding layer and forms a continuous grinding channel with the grinding layer. The diameter of the upper part of the grinding channel decreases gradually, while the diameter of the lower part remains constant. The drive assembly (6) is located in the working chamber 3 (23) and forms a feeding channel between the working chamber and the working chamber. The drive assembly (6) is connected to the grinding roller assembly (5).

2. The grinding device for mine backfill cement powder according to claim 1, characterized in that: The pre-crushing component (3) includes: Two crushing rollers (31) are arranged in parallel rotation in the working chamber (21), and the ends of the rotating shafts of the two crushing rollers (31) extend to the outside of the housing (2). Gear structure 1 (32) is connected to the rotating shaft of two crushing rollers (31); Gear structure two (33) is connected to the rotating shaft of one of the crushing rollers (31); The crushing motor (34) is connected to the gear structure two (33).

3. A grinding device for mine backfill cement powder according to claim 2, characterized in that: The grinding roller assembly (5) includes: The first grinding roller (51) is conical and located inside the second working chamber (22); The second grinding roller (52) is circular and located in the third working chamber (23), and is connected to the bottom end of the first grinding roller (51); Grinding liner plate 2 (53) is disposed on the outer wall of grinding roller 1 (51) and grinding roller 2 (52) to form a continuous grinding layer 2 on the outer wall of grinding roller 1 (51) and grinding roller 2 (52), and a continuous grinding channel is formed between grinding layer 2 and grinding layer 1.

4. A grinding device for mine backfill cement powder according to claim 3, characterized in that: The grinding roller assembly (5) also includes: The feeding platform (54) is conical and is located on top of the grinding roller (51) and directly below the two crushing rollers (31).

5. A grinding device for mine backfill cement powder according to claim 4, characterized in that: The driving component (6) includes: Support rods (61) are four in number and are arranged circumferentially within the working chamber (24); Mounting plate (62) is connected to four support rods (61) and is located directly below the grinding channel; A drive motor (63) is mounted on a mounting plate (62); The rotating shaft (64) is connected at one end to the drive motor (63) and at the other end to the grinding roller (52).

6. A grinding device for mine backfill cement powder according to claim 5, characterized in that: The diameter of the rotating shaft (64) is smaller than the diameter of the grinding roller (52).

7. A grinding device for mine backfill cement powder according to claim 6, characterized in that: The mounting plate (62) is provided with a conical feed shell (7), which covers the outside of the drive motor (63) and is sleeved on the outside of the rotating shaft (64).

8. A grinding device for mine backfill cement powder according to claim 7, characterized in that: The bottom diameter of the feed shell (7) is the same as the diameter of the mounting plate (62).

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