Mine ventilation device

Abstract

The utility model provides a mine ventilation device which comprises a barrel, an inner air passing opening is formed in one end plate of the barrel, an outer air passing opening is formed in the other end plate of the barrel, the barrel comprises a main body part and a diameter expanding part, a transverse filtering assembly is arranged in the main body part, and a longitudinal filtering assembly is arranged in the diameter expanding part; a partition plate is arranged at the joint of the main body part and the expanding part, an air filtering pipe with a plurality of through holes is arranged on the partition plate, a flange is arranged at one end, facing the inner air passing opening, of the air filtering pipe, the periphery of the flange is fixed to the inner wall of the main body part, a plurality of air passing pipes are arranged on the partition plate, and the two ends of each air passing pipe extend out of the partition plate; a partition plate is arranged at the end, close to the inner air passing opening, of the main body part, a conical protruding part facing the inner air passing opening is arranged in the middle of the partition plate, a longitudinal partition part is arranged on the periphery of the conical protruding part, and a plurality of ventilation openings are formed in the longitudinal partition part. The device is reasonable in structural design, and pollution to the external environment is effectively avoided.

Description

Technical Field

[0001] This invention belongs to the field of mining equipment technology, and in particular relates to a mine ventilation device. Background Technology

[0002] Mine ventilation equipment is a crucial facility for ensuring mine safety and worker health. Its main functions are to provide fresh air to the mine and promptly remove harmful gases, while also preventing dust from escaping and causing pollution. To avoid mineral loss and environmental pollution, existing mine ventilation equipment typically installs filters on the air intake side of the duct. However, due to the high dust levels in mines and the lack of dust suppression measures in existing ventilation systems, filters are prone to clogging. This necessitates frequent filter maintenance by operators, increasing their workload and reducing efficiency. If cleaning is not timely, filter clogging significantly reduces the ventilation equipment's output efficiency, leading to insufficient air supply and the inability to remove harmful gases in a timely manner, thus affecting worker safety. Therefore, it is necessary to improve existing mine ventilation systems. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the deficiencies in the prior art and proposes a mine ventilation device.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] A mine ventilation device includes a cylinder with an inner air inlet on one end plate and an outer air inlet on the other end plate. The cylinder includes a main body and an expanded diameter section. A transverse filter assembly is provided inside the main body, and a longitudinal filter assembly is provided inside the expanded diameter section. A partition is provided at the junction of the main body and the expanded diameter section. A filter pipe with several through holes is provided on the partition. The end of the filter pipe facing the inner air inlet has a flange, and the outer periphery of the flange is fixed to the inner wall of the main body. Several air passage pipes are provided on the partition around the filter pipes, with both ends of the air passage pipes extending outward from the partition. A baffle is provided at the end of the main body near the inner air inlet. The baffle has a conical protrusion in the middle facing the inner air inlet, and a longitudinal baffle is provided around the conical protrusion. Several ventilation openings are provided on the longitudinal baffle.

[0006] Furthermore, the inner and outer air vents have the same diameter.

[0007] Furthermore, the diameters of both the inner and outer air vents are smaller than the diameter of the main body.

[0008] Furthermore, each ventilation opening is evenly distributed with the center of the baffle plate as the center.

[0009] Furthermore, each air duct is evenly distributed around the center of the partition.

[0010] Furthermore, the transverse filtration assembly includes a filter screen surrounding the inner wall of the main body.

[0011] Furthermore, the longitudinal filtration assembly includes several filter screens arranged at intervals along the axial direction of the cylinder.

[0012] Furthermore, the main body and the enlarged diameter portion are detachably connected.

[0013] Compared with existing technologies, the present invention has the following advantages:

[0014] This invention features a rationally designed structure. By installing baffles at the inner air inlet, some dust particles in the air entering the cylinder will touch the baffles and fall off, preventing them from being carried into the cylinder. When the air enters the filter cylinder through the ventilation opening, the air ducts on the baffles allow airflow, while the baffles obstruct the airflow. In addition, the airflow exiting from the various through holes of the filter cylinder increases the opportunity for the gas to come into contact with the longitudinal filtration components, improving the filtration effect on dust and impurities contained in the gas in the mine. Before the air is discharged from the outer air inlet, it is also filtered by the transverse filtration components, effectively preventing dust and impurities in the mine from being discharged to the outside and causing pollution to the external environment. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure created by this invention;

[0017] Figure 2 for Figure 1 A schematic diagram after removing the baffles, vertical filter components, and horizontal filter components;

[0018] Figure 3 This is a schematic diagram of the main body of the invention.

[0019] Figure 4 This is a schematic diagram of the structure of the expanded diameter portion in this invention;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the longitudinal filtering component in an embodiment of the present invention. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] A mine ventilation device, such as Figures 1 to 5 As shown, the device includes a cylindrical body 1, with an inner air inlet 2 on one end plate and an outer air inlet 3 on the other end plate. In application, an exhaust fan is typically installed at the outer air inlet end of the cylindrical body, with the first air inlet facing inwards and the outer air inlet facing outwards to achieve better dust filtration. The cylindrical body includes a main body and an expanded section. A transverse filter assembly 4 is installed inside the main body, and a longitudinal filter assembly 5 is installed inside the expanded section.

[0026] A partition 6 is provided at the junction of the main body and the expanded diameter section. A filter duct 7 with several through holes is provided on the partition. A flange 8 is provided at the end of the filter duct facing the inner air inlet. The outer perimeter of the flange is fixed to the inner wall of the main body. Several air passage ducts 9 are provided on the partition around the filter duct. The two ends of the air passage ducts extend outward from the partition. When air passes through the air passage ducts, some of the gas is blocked by the partition, so that the gas has more opportunities to come into contact with the longitudinal filter components, thereby minimizing the discharge of dust-laden gas from the cylinder to the outside.

[0027] The main body has a baffle plate 10 near the inner air vent. The baffle plate has a conical protrusion 11 in the middle facing the inner air vent, and a longitudinal partition 12 around the conical protrusion. Several air vents 13 are provided on the longitudinal partition. Typically, the air vents are evenly distributed around the center of the baffle plate. The air ducts are also evenly distributed around the center of the baffle plate.

[0028] The transverse filter assembly includes a filter screen 14 surrounding the inner wall of the main body. A barbed structure 15 may be provided on the surface of the filter screen; for example, the barbed structure may consist of obliquely arranged rods or intersecting X-shaped members. The longitudinal filter assembly includes several filter screens spaced apart along the axial direction of the cylinder. When this ventilation device is in use, dust particles are blocked by baffles when air enters the cylinder. Air entering the main body through the ventilation openings comes into contact with the longitudinal filter assembly, forming a filtration effect. After entering the filter duct, the air is discharged from the various through-holes of the filter duct towards the inner wall of the main body, facilitating the capture of airborne dust particles by the longitudinal filter assembly.

[0029] Air entering the expanded section from the main body's inner cavity (through the duct) is effectively filtered by the horizontal filter assembly, preventing gas from overflowing from the external air vent and polluting the mine's external environment. It should be noted that because the air is purified at the front end (inner air vent side) by the baffle plate and the vertical filter assembly, the filter screen of the horizontal filter assembly at the rear end (outer air vent side) is less prone to clogging and has a long service life.

[0030] The inner and outer air vents have the same diameter. Both the inner and outer air vent diameters are smaller than the diameter of the main body. The diameter of the expanded section is larger than the diameter of the main body, and the diameter of the internal cavity of the expanded section is larger than the diameter of the internal cavity of the main body, resulting in a larger internal space in the expanded section compared to the main body.

[0031] In an optional embodiment, the main body and the expanded diameter portion are detachably connected. For example, the expanded diameter portion has a connecting part 16 on the side facing the main body, the inner wall of which has an internal thread structure, and the main body has an external thread structure that matches the connecting part. This allows the main body and the expanded diameter portion to be periodically disassembled for cleaning, extending the service life and effectiveness of the ventilation device. To improve the stability of the filter cartridge and the partition, a pressure pad 18 can be provided on the side of the partition facing the inner air inlet. After the main body and the expanded diameter portion are tightened, the end of the filter cartridge abuts against the pressure pad, ensuring a secure connection between the filter cartridge and the partition, preventing vibration and noise during use.

[0032] This invention features a rationally designed structure. By installing baffles at the inner air inlet, some dust particles in the air entering the cylinder will touch the baffles and fall off, preventing them from being carried into the cylinder. When the air enters the filter cylinder through the ventilation opening, the air ducts on the baffles allow airflow, while the baffles obstruct the airflow. In addition, the airflow exiting from the various through holes of the filter cylinder increases the opportunity for the gas to come into contact with the longitudinal filtration components, improving the filtration effect on dust and impurities contained in the gas in the mine. Before the air is discharged from the outer air inlet, it is also filtered by the transverse filtration components, effectively preventing dust and impurities in the mine from being discharged to the outside and causing pollution to the external environment.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mine ventilation device, characterized in that: The device includes a cylindrical body with an inner air inlet on one end plate and an outer air inlet on the other end plate. The cylindrical body comprises a main body and an expanded diameter section. The main body contains a transverse filter assembly, and the expanded diameter section contains a longitudinal filter assembly. A partition is provided at the junction of the main body and the expanded diameter section. The partition has a filter duct with several through holes. The end of the filter duct facing the inner air inlet has a flange, and the outer periphery of the flange is fixed to the inner wall of the main body. Several air passage ducts are provided on the partition around the filter ducts, with both ends of the air passage ducts extending outward from the partition. A baffle is provided at the end of the main body near the inner air inlet. The baffle has a conical protrusion in the middle facing the inner air inlet, and a longitudinal baffle is provided around the conical protrusion. Several ventilation openings are provided on the longitudinal baffle.

2. A mine ventilation device according to claim 1, characterized in that: The inner and outer air vents have the same diameter.

3. A mine ventilation device according to claim 1, characterized in that: The diameters of both the inner and outer air vents are smaller than the diameter of the main body.

4. A mine ventilation device according to claim 1, characterized in that: Each ventilation opening is evenly distributed with the center of the baffle plate as the center.

5. A mine ventilation device according to claim 1, characterized in that: Each air duct is evenly distributed with the center of the partition as the center.

6. A mine ventilation device according to claim 1, characterized in that: The transverse filtration assembly includes a filter screen surrounding the inner wall of the main body.

7. A mine ventilation device according to claim 1, characterized in that: The longitudinal filtration assembly includes several filter screens arranged at intervals along the axial direction of the cylinder.

8. A mine ventilation device according to any one of claims 1 to 7, characterized in that: The main body and the enlarged diameter portion are detachably connected.

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