Explosion-proof device of fan coal mill

Abstract

The utility model relates to an explosion-proof device for a fan coal mill. The explosion-proof device comprises a base, the explosion-proof box body is mounted above the base; the heat dissipation assembly comprises a main body part which is fixed on the side wall of the explosion-proof box body; the dust discharging plate is fixed on the main body part, a plurality of dust discharging holes are formed in the dust discharging plate, and the dust discharging holes are used for enabling the interior of the explosion-proof box body to be communicated with the atmosphere; and the heat dissipation fan is mounted on the main body part, and the heat dissipation fan is arranged outside the explosion-proof box body and in front of the dust discharge plate. In this way, the cooling fan can discharge dust inside the explosion-proof box body outwards through the dust discharge holes of the dust discharge plate. And when the dust concentration in the air is too high, the safety of the internal fan coal mill in the working process can be guaranteed, and the situation of dust explosion is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of fan mills, and more particularly, to an explosion-proof device for a fan mill. Background Art

[0002] A fan mill is a high-speed mill that grinds coal into pulverized coal using a high-speed impeller of a fan type that rotates at a high speed. In related technologies, a sealing rubber ring is provided at the gate of the fan mill to ensure its sealing tightness. However, during the operation of the fan mill, dust falling on the steel beams and cable trays is likely to generate sparks. When the dust concentration in the air is too high, the sparks are likely to cause dust explosions. At the same time, the dust also pollutes the on-site environment. Summary of the Utility Model

[0003] The purpose of the present disclosure is to provide an explosion-proof device for a fan mill to at least partially solve the problems existing in related technologies.

[0004] To achieve the above purpose, the present disclosure provides an explosion-proof device for a fan mill, including:

[0005] A base;

[0006] An explosion-proof box body, installed above the base; and

[0007] An explosion-proof component, including:

[0008] A main body part, fixed on the side wall of the explosion-proof box body;

[0009] A dust discharge plate, fixed on the main body part, the dust discharge plate is formed with a plurality of dust discharge holes, and the dust discharge holes are used to communicate the inside of the explosion-proof box body with the atmosphere;

[0010] A cooling fan, installed on the main body part, the cooling fan is placed outside the explosion-proof box body and in front of the dust discharge plate.

[0011] Optionally, the explosion-proof component further includes a heat dissipation structure, the heat dissipation structure is installed on the side of the dust discharge plate located inside the explosion-proof box body, and the heat dissipation structure includes a plurality of adjacent heat dissipation plates and a driving component for driving the heat dissipation plates to rotate.

[0012] Optionally, the driving component includes a rotating shaft fixedly installed on the side wall of the heat dissipation plate, a first gear sleeved on the rotating shaft, and a first motor for driving one of the rotating shafts to rotate, and adjacent first gears are connected by a chain drive.

[0013] Optionally, the explosion-proof component further includes a dust suction plate, and the dust suction plate is installed on the side of the dust discharge plate located outside the explosion-proof box body.

[0014] Optionally, the dust suction plate is detachably mounted on the main body part.

[0015] Optionally, clamping blocks are provided on the side walls of the dust suction plate, and clamping grooves matching with the clamping blocks are formed on the side walls of the main body part.

[0016] Optionally, the explosion-proof device for the fan mill further includes a lifting assembly, and the lifting assembly is used to drive the explosion-proof box body to move up and down so that the explosion-proof box body is separated from or abuts against the base.

[0017] Optionally, the lifting assembly includes a limiting plate fixedly connected to the explosion-proof box body, a rack arranged along the up-and-down direction, and a limiting rod connected between the limiting plate and the rack. The lifting assembly further includes a second gear meshing with the rack and a second motor for driving the second gear to rotate.

[0018] Optionally, the lifting assembly further includes a column, the column is configured as a hollow structure, the second gear, the second motor and the rack are all installed in the column, a limiting groove extending along the up-and-down direction is formed on the side wall of the column, and the limiting rod passes through the limiting groove to be connected with the limiting plate.

[0019] Optionally, the explosion-proof box body is configured as a box structure with an open lower end, the base includes a bottom plate and a fixed box body installed above the bottom plate, the fixed box body is configured as a box structure with an open upper end, and the fixed box body and the explosion-proof box body are docked up and down to form a receiving cavity for receiving the fan mill.

[0020] Through the above technical solution, the cooling fan can discharge the dust and powder inside the explosion-proof box body outwards through the dust discharge holes of the dust discharge plate. When the dust concentration in the air is too high, the safety of the internal fan mill during operation can be ensured, and the situation of dust explosion can be avoided.

[0021] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0023] Figure 1 is a schematic structural diagram of an explosion-proof device for a fan mill provided by an exemplary embodiment of the present disclosure;

[0024] Figure 2 is a schematic structural diagram of an explosion-proof component in an explosion-proof device for a fan mill provided by an exemplary embodiment of the present disclosure;

[0025] Figure 3 It is a schematic exploded view of an explosion-proof component in an explosion-proof device for a fan mill provided by an exemplary embodiment of the present disclosure;

[0026] Figure 4 is Figure 3 a partial enlarged view of A in

[0027] Figure 5 It is an assembly schematic diagram of a lifting component and a base in an explosion-proof device for a fan mill provided by an exemplary embodiment of the present disclosure;

[0028] Figure 6 It is a schematic structural diagram of a lifting component removing a column in an explosion-proof device for a fan mill provided by an exemplary embodiment of the present disclosure.

[0029] Description of Reference Numerals

[0030] 1 - Base; 11 - Bottom Plate; 12 - Fixed Box; 2 - Explosion-Proof Box; 3 - Explosion-Proof Component; 31 - Main Body; 311 - Clamping Groove; 32 - Dust Exhaust Plate; 321 - Dust Exhaust Hole; 33 - Cooling Fan; 34 - Heat Dissipation Plate; 35 - Rotating Shaft; 36 - First Gear; 37 - First Motor; 38 - Chain; 39 - Dust Suction Plate; 391 - Clamping Block; 4 - Lifting Component; 41 - Limiting Plate; 42 - Limiting Rod; 43 - Second Gear; 44 - Second Motor; 45 - Rack; 46 - Column; 461 - Limiting Groove Detailed Embodiment

[0031] The following will describe the detailed embodiment of the present disclosure with reference to the accompanying drawings. It should be understood that the detailed embodiment described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0032] In the present disclosure, unless otherwise stated, the orientation terms "upper", "lower", "top", and "bottom" are defined based on the actual use directions of the relevant components. "Inner" and "outer" refer to the outline of the corresponding components themselves. The terms "first", "second", etc. are used to distinguish different components, and do not have sequential and important meanings. In the present disclosure, when the following description involves the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0033] Refer to Figures 1 to 6The present disclosure provides an explosion-proof device for a fan coal mill, which may include a base 1, an explosion-proof box 2 and an explosion-proof assembly 3, wherein the explosion-proof box 2 is installed above the base 1; the explosion-proof assembly 3 includes a main body 31, a dust exhaust plate 32 and a cooling fan 33, wherein the main body 31 is fixed on the side wall of the explosion-proof box 2; the dust exhaust plate 32 is fixed on the main body 31, and the dust exhaust plate 32 is formed with a plurality of dust exhaust holes 321, and the dust exhaust holes 321 are used to make the interior of the explosion-proof box 2 communicate with the atmosphere; the cooling fan 33 is installed on the main body 31, and the cooling fan 33 is placed outside the explosion-proof box 2 and in front of the dust exhaust plate 32.

[0034] Through the above technical solution, the cooling fan can discharge the dust and powder inside the explosion-proof box through the dust discharge holes of the dust discharge plate. When the dust concentration in the air is too high, the internal fan coal mill can be kept safe during operation to avoid dust explosion.

[0035] Among them, reference Figure 2 , Figure 3 The explosion-proof component 3 may also include a heat dissipation structure, which is installed on one side of the dust exhaust plate 32 located inside the explosion-proof box 2. The heat dissipation structure includes a plurality of adjacently arranged heat dissipation plates 34 and a driving component for driving the heat dissipation plates 34 to rotate. The heat dissipation effect is achieved by driving the heat dissipation plates 34 to rotate, thereby preventing the internal temperature of the heat dissipation plates 34 from being too high and causing an explosion.

[0036] Further, refer to Figure 4 The driving assembly may include a rotating shaft 35 fixedly mounted on the side wall of the heat sink 34, a first gear 36 sleeved on the rotating shaft 35, and a first motor 37 for driving one of the rotating shafts 35 to rotate, and adjacent first gears 36 are connected by a chain 38. The first motor 37 drives the rotating shaft 35 to rotate, thereby driving the first gear 36 to rotate, and multiple first gears 36 rotate simultaneously under the transmission action of the chain 38, so that multiple rotating shafts 35 drive the heat sink 34 to rotate simultaneously, achieving the effect of heat dissipation.

[0037] In some embodiments, reference Figure 3 The explosion-proof assembly 3 may further include a dust collecting plate 39, which is mounted on a side of the dust exhaust plate 32 located outside the explosion-proof housing 2. The cooling fan 33 can discharge dust inside the explosion-proof housing 2 through the dust exhaust plate 32, and then be absorbed by the dust collecting plate 39.

[0038] Furthermore, the dust collecting plate 39 can be detachably mounted on the main body 31. When the dust collecting plate 39 needs to be replaced, it can be removed from the main body 31.

[0039] Specifically, refer to Figure 2 , Figure 3The side wall of the dust collecting plate 39 may be provided with a clamping block 391, and the side wall of the main body 31 may be formed with a clamping groove 311 that matches the clamping block 391. The above connection method is convenient for disassembling and assembling the dust collecting plate 39. The present disclosure does not limit the detachable connection method between the dust collecting plate 39 and the main body 31, which all belong to the protection scope of the present disclosure.

[0040] As an exemplary implementation of the present disclosure, refer to Figure 5 The explosion-proof device for the fan coal mill may further include a lifting assembly 4, which is used to drive the explosion-proof housing 2 to move up and down so that the explosion-proof housing 2 is separated from or abuts against the base 1. The explosion-proof housing 2 can be driven to rise upward by the lifting assembly 4, thereby exposing the internal fan coal mill, so that the powdered materials inside the fan coal mill can be taken out without manually lifting the explosion-proof housing 2, thereby improving safety.

[0041] Among them, reference Figure 6 The lifting assembly 4 may include a limit plate 41 fixedly connected to the explosion-proof box 2, a rack 45 extending in the up-down direction, and a limit rod 42 connected between the limit plate 41 and the rack 45. The lifting assembly 4 also includes a second gear 43 meshing with the rack 45 and a second motor 44 for driving the second gear 43 to rotate. The second motor 44 drives the second gear 43 to rotate, thereby driving the rack 45 to move up and down, and further enables the limit plate 41 to drive the explosion-proof box 2 to move up and down.

[0042] Further, refer to Figure 5 , Figure 6 The lifting assembly 4 may further include a column 46, which is configured as a hollow structure. The second gear 43, the second motor 44 and the rack 45 are all installed in the column 46 to play a protective role. A limit groove 461 extending up and down is provided on the side wall of the column 46, and the limit rod 42 passes through the limit groove 461 to connect with the limit plate 41. Specifically, the second motor 44 is fixedly installed on the inner wall of the column 46. The rack 45 can move up and down along the limit groove 461, so that it moves more stably.

[0043] In some embodiments, reference Figure 1 The explosion-proof box 2 can be constructed as a box-type structure with an opening at the bottom, the base 1 includes a bottom plate 11 and a fixed box 12 installed above the bottom plate 11, the fixed box 12 is constructed as a box-type structure with an opening at the top, and the fixed box 12 and the explosion-proof box 2 are connected up and down to form an accommodating cavity for accommodating the fan coal mill. The lifting assembly 4 drives the explosion-proof box 2 to move upward to separate it from the fixed box 12, so that the fan coal mill can be exposed.

[0044] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0045] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0046] Furthermore, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. An explosion-proof device for a fan mill, characterized in that, Comprising: Base; Explosion-proof box body, installed above the base; And Explosion-proof component, including: Main body part, fixed on the side wall of the explosion-proof box body; Dust exhaust plate, fixed on the main body part, the dust exhaust plate is formed with a plurality of dust exhaust holes, and the dust exhaust holes are used to communicate the inside of the explosion-proof box body with the atmosphere; Heat dissipation fan, installed on the main body part, the heat dissipation fan is placed outside the explosion-proof box body and in front of the dust exhaust plate.

2. The explosion-proof device for a fan mill according to claim 1, wherein, The explosion-proof component further includes a heat dissipation structure, the heat dissipation structure is installed on the side of the dust exhaust plate located inside the explosion-proof box body, and the heat dissipation structure includes a plurality of adjacent heat dissipation plates and a driving component for driving the heat dissipation plates to rotate.

3. The explosion-proof device for a fan mill according to claim 2, characterized in that, The driving component includes a rotating shaft fixedly installed on the side wall of the heat dissipation plate, a first gear sleeved on the rotating shaft, and a first motor for driving one of the rotating shafts to rotate, and adjacent first gears are connected by a chain drive.

4. The explosion-proof device for a fan mill according to claim 1, characterized in that, The explosion-proof component further includes a dust suction plate, and the dust suction plate is installed on the side of the dust exhaust plate located outside the explosion-proof box body.

5. The explosion-proof device for a fan mill according to claim 4, characterized in that, The dust suction plate is detachably installed on the main body part.

6. The explosion-proof device for a fan mill according to claim 5, wherein, A clamping block is provided on the side wall of the dust suction plate, and a clamping groove matching with the clamping block is formed on the side wall of the main body part.

7. The explosion-proof device for a fan mill according to any one of claims 1-6, characterized in that, The explosion-proof device for the fan mill also includes a lifting component, and the lifting component is used to drive the explosion-proof box body to move up and down so that the explosion-proof box body is separated from or abutted against the base.

8. The explosion-proof device for a fan mill according to claim 7, characterized in that, The lifting component includes a limiting plate fixedly connected with the explosion-proof box body, a rack extending in the up and down direction, and a limiting rod connected between the limiting plate and the rack. The lifting component further includes a second gear meshing with the rack and a second motor for driving the second gear to rotate.

9. The explosion-proof device for a fan mill according to claim 8, characterized in that, The lifting component further includes a column, the column is configured as a hollow structure, the second gear, the second motor and the rack are all installed in the column, and a limiting groove extending in the up and down direction is formed on the side wall of the column, and the limiting rod passes through the limiting groove to be connected with the limiting plate.

10. The explosion-proof device for a fan mill according to claim 7, characterized in that, The explosion-proof box body is configured as a box structure with an open lower end, the base includes a bottom plate and a fixed box body installed above the bottom plate, the fixed box body is configured as a box structure with an open upper end, and the fixed box body is docked with the explosion-proof box body up and down to form a receiving cavity for receiving the fan mill.

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