Diffusion cylinder of mine fan

Abstract

The utility model belongs to the field of mine ventilation equipment, and particularly relates to a mine fan diffuser cylinder which comprises a main shell, an auxiliary shell is detachably connected to the outer wall of the main shell, a main semicircular block is fixedly connected to the outer wall of the main shell, and a main semi-square block is fixedly connected to the end, away from the main semicircular block, of the main shell. The outer wall of the main shell is fixedly connected with a supporting block, the inner wall of the main shell is fixedly connected with a supporting structure, and the supporting structure comprises a main supporting plate with the length being one. According to the mine fan diffusion cylinder, one end of the cone is supported through the first main supporting plate and the second main supporting plate, the other end of the cone is supported through the short main supporting plate and the short auxiliary supporting plate, the cone is further stabilized through the first supporting square rod and the second supporting square rod, and the stable supporting structure ensures the stability of the cone in the diffusion process; kinetic energy of high-speed airflow can be effectively converted into pressure energy, the airflow speed is reduced, the pressure is increased, the diffusion requirement of a mine fan is met, and the diffusion efficiency and stability of the device are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mine ventilation equipment, and particularly relates to a mine fan diffuser cylinder. Background Art

[0002] In mine exploitation operations, the ventilation system plays a crucial role, and the mine fan is the core equipment of the ventilation system. As an important part of the fan, the performance of the mine fan diffuser cylinder directly affects the efficiency and effect of the entire ventilation system.

[0003] Currently, the conical structure in some mine fan diffuser cylinders lacks a sufficiently stable support structure. During the pressure expansion process, due to the impact of high-speed airflows and the characteristics of its own structure, the cone is prone to vibration or displacement. This unstable state will lead to a reduction in the pressure expansion efficiency and also make the pressure expansion effect unstable. In view of this, we propose a mine fan diffuser cylinder. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a mine fan diffuser cylinder that can solve the problems raised in the above background art.

[0005] To achieve the above purpose, the mine fan diffuser cylinder proposed by the utility model includes a main shell, the outer wall of the main shell is detachably connected with a secondary shell, the outer wall of the main shell is fixedly connected with a main semi-circular block, one end of the main shell far from the main semi-circular block is fixedly connected with a main semi-square block, the outer wall of the main shell is fixedly connected with support blocks, and the inner wall of the main shell is fixedly connected with a support structure. The support structure includes:

[0006] A main long support plate 1, the inner wall of the main shell is fixedly connected with a main long support plate 1, and the inner wall of the secondary shell is fixedly connected with a main long support plate 2;

[0007] A main short support plate, the inner wall of the main shell is fixedly connected with a main short support plate, and the inner wall of the secondary shell is fixedly connected with a secondary short support plate;

[0008] A cone, the outer wall of the main short support plate is fixedly connected with a cone.

[0009] Preferably, the bottom of the support block is fixedly connected with a universal wheel, a rope groove is provided on the support block, and a fixed rod is fixedly connected to the inner wall of the rope groove. There are two groups of support blocks, both groups of support blocks are arranged on the main shell, and the sizes of the two groups of support blocks are different. The end faces of the two groups of support blocks close to the universal wheels are on the same horizontal plane, thus facilitating ensuring that the center lines of the universal wheels are the same.

[0010] Preferably, the length of the first main support plate is longer than that of the second main support plate. The inner wall of the main housing is fixedly connected to the second main support plate. The length of the short main support plate is the same as that of the short auxiliary support plate. There are two groups of short main support plates and two groups of long first main support plates, and both groups are arranged on the main housing. The long first main support plates are located on the side of the main housing close to the main half-block. There are two groups of second main support plates. One group is distributed on the side of the main housing close to the main half-block, and the other group is distributed on the side of the auxiliary housing close to the half-block.

[0011] Preferably, a first support square rod is fixedly connected to the outer wall of the main semi-circular block. One end of the first support square rod away from the main semi-circular block is fixedly connected to the outer wall of the cone. There are four groups of first support square rods, and two of them are arranged on the main semi-circular block.

[0012] Preferably, a second support square rod is fixedly connected to the outer wall of the main half-block. One end of the second support square rod away from the main half-block is fixedly connected to the outer wall of the cone. There are four groups of second support square rods, and three of them are arranged on the main half-block.

[0013] Preferably, a hanging block is fixedly connected to the outer wall of the main housing, and a connecting block is fixedly connected to the outer wall of the main housing. There are eight groups of hanging blocks. There are multiple connecting through holes on the connecting block. There are four groups of connecting blocks. Two groups of connecting blocks are distributed on both sides of the main housing, and the other two groups of connecting blocks are distributed on the two auxiliary housings.

[0014] The utility model provides a mine fan diffuser cylinder, which has the following beneficial effects:

[0015] (1) The mine fan diffuser cylinder supports one end of the cone through the first main support plate and the second main support plate, and supports the other end through the short main support plate and the short auxiliary support plate. There are also the first support square rod and the second support square rod to further stabilize the cone. This stable support structure ensures the stability of the cone during the pressure increase process, can effectively convert the kinetic energy of the high-speed air flow into pressure energy, reduce the air flow speed, and increase the pressure, meeting the pressure increase requirements of the mine fan, and ensuring the pressure increase efficiency and stability of the device.

[0016] (2) The mine fan diffuser cylinder detachably connects the auxiliary housing to the outer wall of the main housing. The overall structure is combined through the cooperation and splicing of the main semi-circular block and the auxiliary semi-circular block, and the main half-block and the auxiliary half-block. At the same time, connecting blocks and hanging blocks are provided, which are convenient for installation and transportation. Moreover, a sealing gasket is provided at the connection part of the main housing and the auxiliary housing to prevent air leakage and ensure the pressure increase effect of the device. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0018] Figure 1 Schematic diagram of the overall three-dimensional structure of the present invention Figure 1 ;

[0019] Figure 2 Schematic diagram of the overall three-dimensional structure of the present invention Figure 2 ;

[0020] Figure 3 Schematic diagram of the partial sectional structure of the auxiliary shell and the main support plate of the present invention;

[0021] Figure 4 Schematic diagram of the partial sectional structure of the support group and the cone of the present invention.

[0022] Explanation of the reference numerals in the drawings: 1, main shell; 2, auxiliary shell; 3, main semi-block; 4, main semi-square block; 5, support block; 51, rope groove; 52, fixing rod; 6, support structure; 61, first long main support plate; 62, second long main support plate; 63, short main support plate; 64, short auxiliary support plate; 65, cone; 7, universal wheel; 8, first support square rod; 9, second support square rod; 10, hanging block; 11, connecting block.

[0023] The realization, functional features and advantages of the purpose of the present invention will be further described in conjunction with the embodiments and with reference to the drawings. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] Please refer to Figures 1-4, the present utility model proposes a mine fan diffuser cylinder, which includes a main housing 1. The outer wall of the main housing 1 is detachably connected with a secondary housing 2. The outer wall of the main housing 1 is fixedly connected with a main semi-circular block 3. One end of the main housing 1 far from the main semi-circular block 3 is fixedly connected with a main semi-square block 4. The outer wall of the secondary housing 2 is fixedly connected with a secondary semi-circular block. Through the secondary semi-circular block, it can be cooperatively spliced with the main semi-circular block 3 to form a complete circle. The outer wall of the secondary housing 2 is fixedly connected with a secondary semi-square block. Through the secondary semi-square block, it can be cooperatively spliced with the main semi-square block 4 to form a rectangle. The outer wall of the main housing 1 is fixedly connected with a support block 5. The inner wall of the main housing 1 is fixedly connected with a support structure 6. The support structure 6 includes a main support plate long one 61. The inner wall of the main housing 1 is fixedly connected with the main support plate long one 61. The inner wall of the secondary housing 2 is fixedly connected with a main support plate long two 62. The inner wall of the main housing 1 is fixedly connected with a main support plate short 63. The inner wall of the secondary housing 2 is fixedly connected with a secondary support plate short 64. The outer wall of the main support plate short 63 is fixedly connected with a cone 65.

[0026] In the present utility model, the bottom of the support block 5 is fixedly connected with a universal wheel 7. A rope groove 51 is opened on the support block 5. The inner wall of the rope groove 51 is fixedly connected with a fixing rod 52. There are two groups of support blocks 5, and both groups of support blocks 5 are arranged on the main housing 1, and the sizes of the two groups of support blocks 5 are different. The end faces of the two groups of support blocks 5 close to the universal wheel 7 are on the same horizontal plane, thereby facilitating to ensure that the center lines of the universal wheels 7 are the same.

[0027] Furthermore, the length of the main support plate long one 61 is longer than that of the main support plate long two 62. The inner wall of the main housing 1 is fixedly connected with the main support plate long two 62. The length of the main support plate short 63 is the same as that of the secondary support plate short 64. There are two groups of main support plate short 63, and there are two groups of main support plate long one 61, and both groups are arranged on the main housing 1, and the main support plate long one 61 is on the side of the main housing 1 close to the main semi-square block 4. There are two groups of main support plate long two 62. One group is distributed on the side of the main housing 1 close to the main semi-square block 4, and the other group is distributed on the side of the secondary housing 2 close to the semi-square block 4. The two groups of main support plate short 63 are both distributed on the main housing. There are also two groups of secondary support plate short 64, and both groups of secondary support plate short 64 are distributed on the secondary housing 2. The main support plate long one 61 and the main support plate long two 62 support one end of the cone 65, and the main support plate short 63 and the secondary support plate short 64 support the other end of the cone 65.

[0028] Furthermore, the outer wall of the main semi-circular block 3 is fixedly connected with a support square rod one 8. One end of the support square rod one 8 far from the main semi-circular block 3 is fixedly connected to the outer wall of the cone 65. There are four groups of support square rod one 8, and two of them are arranged on the main semi-circular block 3, and the other two are arranged on the secondary semi-circular block.

[0029] Furthermore, a second supporting square rod 9 is fixedly connected to the outer wall of the main semi-square block 4. One end of the second supporting square rod 9 away from the main semi-square block 4 is fixedly connected to the outer wall of the cone 65. There are four groups of the second supporting square rods 9, among which three groups of the second supporting square rods 9 are arranged on the main semi-square block 4, and the other group is arranged on the sub-semi-square block.

[0030] Furthermore, a hanging block 10 is fixedly connected to the outer wall of the main housing 1, and a connecting block 11 is fixedly connected to the outer wall of the main housing 1. There are eight groups of the hanging blocks 10. There are a plurality of connecting through holes provided on the connecting block 11. There are four groups of the connecting blocks 11. Two groups of the connecting blocks 11 are distributed on both sides of the main housing 1, and the other two groups of the connecting blocks 11 are distributed on the two sub-housings 2. There are four groups of the hanging blocks 10 distributed on each of the main housing 1 and the sub-housing 2. At the connection part of the main housing 1 and the sub-housing 2, such as at the connecting block, a sealing gasket is provided to ensure the connection tightness, so as to prevent air leakage and improve the diffusing effect. The sealing gasket can be made of materials such as rubber or silica gel, which has good elasticity and tightness.

[0031] During use, the fixing bolts and nuts pass through the connecting through holes on the connecting block 11 to fix the connecting block 11 to the connecting block 11, complete the fixing of the main housing 1 and the sub-housing 2, drive the main semi-circular block 3 and the sub-semi-circular block to complete splicing, and the main semi-square block 4 and the sub-semi-square block to complete splicing. After the main housing 1 and the sub-housing 2 are fixed, in order to ensure the stability of the cone 65, workers will enter the interior of the main housing 1 to weld the joints between the sub-supporting plate short 64, the first supporting square rod 8, the second supporting square rod 9 on the sub-housing 2 and the cone 65, and perform grinding and painting work after the welding work is completed to ensure the smoothness of the surface of the cone 65. Since the larger end face of the cone 65 is on the side of the main semi-circular block 3 and the smaller end face of the cone 65 is on the side of the main semi-square block 4, one side of the main semi-circular block 3 after the device is assembled is connected to the air outlet end of the mine fan, so that fresh air enters the interior of the device from the side of the main semi-circular block 3 and then is discharged from the side of the main semi-square block 4. After the fresh air passes through the interior of the device, the kinetic energy of the high-speed air flow discharged from the impeller is converted into pressure energy, so that the air flow velocity decreases and the pressure increases. The diffusing shape of the cone makes the cross-sectional area of the air flow gradually increase. According to Bernoulli's principle, the velocity decreases and the pressure increases, completing the diffusing work.

[0032] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A diffuser cylinder for a mine fan, comprising a main housing (1), characterized in that: The outer wall of the main housing (1) is detachably connected with a secondary housing (2). The outer wall of the main housing (1) is fixedly connected with a main semi-circular block (3). One end of the main housing (1) away from the main semi-circular block (3) is fixedly connected with a main semi-square block (4). The outer wall of the main housing (1) is fixedly connected with a support block (5). The inner wall of the main housing (1) is fixedly connected with a support structure (6). The support structure (6) includes: A main support plate long one (61). The inner wall of the main housing (1) is fixedly connected with the main support plate long one (61). The inner wall of the secondary housing (2) is fixedly connected with a main support plate long two (62); A main support plate short (63). The inner wall of the main housing (1) is fixedly connected with the main support plate short (63). The inner wall of the secondary housing (2) is fixedly connected with a secondary support plate short (64); A cone (65). The outer wall of the main support plate short (63) is fixedly connected with the cone (65).

2. The diffuser cylinder of a mine fan according to claim 1, wherein: The bottom of the support block (5) is fixedly connected with a universal wheel (7). A rope groove (51) is formed on the support block (5). A fixing rod (52) is fixedly connected to the inner wall of the rope groove (51).

3. The diffuser cylinder of a mine fan according to claim 1, wherein: The length of the main support plate long one (61) is longer than that of the main support plate long two (62). The inner wall of the main housing (1) is fixedly connected with the main support plate long two (62). The length of the main support plate short (63) is the same as that of the secondary support plate short (64). There are two groups of the main support plate short (63).

4. A diffuser cylinder for a mine fan according to claim 1, characterized in that: The outer wall of the main semi-circular block (3) is fixedly connected with a support square rod one (8). One end of the support square rod one (8) away from the main semi-circular block (3) is fixedly connected to the outer wall of the cone (65).

5. The diffuser cylinder of a mine fan according to claim 1, characterized in that: The outer wall of the main semi-square block (4) is fixedly connected with a support square rod two (9). One end of the support square rod two (9) away from the main semi-square block (4) is fixedly connected to the outer wall of the cone (65).

6. The diffuser cylinder of a mine fan according to claim 1, characterized in that: The outer wall of the main housing (1) is fixedly connected with a hanging block (10). The outer wall of the main housing (1) is fixedly connected with a connecting block (11).

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