Dust removal equipment for coal mine

Abstract

The utility model provides dust removal equipment for a coal mine, and relates to the technical field of dust removal equipment. The dust removal device comprises a main body frame, an induced draft fan, a cyclone dust removal cone, a dust collection drawer and wheels, the wheels are installed at the bottom of the main body frame, the induced draft fan, the cyclone dust removal cone and the dust collection drawer are arranged on the main body frame, the induced draft fan is connected with the cyclone dust removal cone through a pipeline, and the dust collection drawer is arranged below the cyclone dust removal cone. The bottom of the cyclone dust removal cone is communicated with the top of the dust collection drawer; an air inlet of the cyclone dust removal cone is positioned above the cyclone dust removal cone, and an exhaust port is positioned at the top of the cyclone dust removal cone; the induced draft fan is an axial flow fan and located in the main body frame, the induced draft fan is arranged on the front portion of the main body frame, and an induced draft opening of the induced draft fan faces forwards. The dust removal equipment for the coal mine is high in dust removal efficiency and also has high dust removal efficiency on high-humidity gas.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to dust removal equipment for coal mines. Background Art

[0002] Coal mines can generally be divided into open-pit coal mines and underground coal mines. When the coal seam is buried deep below the surface, it is necessary to dig tunnels underground to mine coal, which is an underground coal mine. Underground coal mines include the ground, underground and related facilities. The space where mining operations rely mainly includes tunnels, shafts and mining faces.

[0003] When underground coal mine boring machines excavate coal seams, a lot of dust is generated. Ventilation and spraying are usually used to reduce dust, and dust removal equipment is configured to match the boring machines to provide a safe production environment and prevent occupational diseases such as pneumoconiosis. The existing dust removal equipment used underground has low dust removal efficiency and is not very effective. Utility Model Content

[0004] Therefore, the utility model proposes a dust removal device for coal mines to improve the deficiencies of the above prior art.

[0005] The technical solution of the utility model is as follows:

[0006] A dust removal equipment for coal mines, comprising a main frame, an induced draft fan, a cyclone dust collection cone, an ash collection drawer and wheels, wherein the wheels are mounted at the bottom of the main frame, the induced draft fan, the cyclone dust collection cone and the ash collection drawer are arranged on the main frame, the induced draft fan is connected to the cyclone dust collection cone through a pipeline, the ash collection drawer is arranged below the cyclone dust collection cone, and the bottom of the cyclone dust collection cone is communicated with the top of the ash collection drawer; the air inlet of the cyclone dust collection cone is located above the side thereof, and the exhaust port is located at the top of the cyclone dust collection cone; the induced draft fan is an axial flow fan and is located inside the main frame, the induced draft fan is arranged at the front of the main frame, and the air inlet of the induced draft fan faces forward.

[0007] As a preference, the motor used by the axial flow fan is a three-phase asynchronous motor, and the three-phase asynchronous motor is electrically connected to a frequency converter, and the speed is controlled by the frequency converter.

[0008] As a preferred embodiment, a filter chamber is provided at the top of the cyclone dust collector cone, and a filter element is installed in the filter chamber for filtering the gas discharged from the exhaust port of the cyclone dust collector cone.

[0009] As a preference, the number of the wheels is four, two of which are universal wheels, and the two universal wheels are arranged at the rear of the main frame.

[0010] As a preference, the number of the wheels is four, all of which are universal wheels, and at least the two rear wheels are provided with brake locking devices.

[0011] The working principle and beneficial effects of the utility model are:

[0012] The dust removal equipment for coal mines provided by the utility model is used in conjunction with a tunneling machine underground to perform dust removal operations at the mining face. During operation, dust-containing gas enters from the induced draft fan's air inlet, and under the suction action of the induced draft fan, the airflow enters the cyclone dust removal cone along the pipeline; the dust-containing airflow rotates and falls along the wall in the cyclone dust removal cone, and the gas and dust are separated, and then the airflow rotates and rises to enter the exhaust port at the top of the cyclone dust removal cone, and is discharged along the pipeline after being filtered by the filter element. The dust removal equipment for coal mines of the utility model has a wide adaptability to the humidity of dust-containing gas, reliable operation and high dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 A partial enlarged view of part A;

[0016] In the figure: 1. main frame; 2. induced draft fan; 21. fan blades; 22. motor; 3. cyclone dust collector cone; 31. filter chamber; 32. pipeline; 4. dust collection drawer; 5. universal wheel; 51. brake locking device. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Please refer to Figure 1 and Figure 2As shown, this embodiment provides a dust removal device for coal mines, which includes a main frame 1, an induced draft fan 2, a cyclone dust collection cone 3, an ash collection drawer 4 and a wheel. The wheel is installed at the bottom of the main frame 1. The induced draft fan 2, the cyclone dust collection cone 3 and the ash collection drawer 4 are arranged on the main frame 1. The induced draft fan 2 is connected to the cyclone dust collection cone 3 through a pipe 32. The ash collection drawer 4 is arranged below the cyclone dust collection cone 3. The bottom of the cyclone dust collection cone 3 is connected to the top of the ash collection drawer 4. The air inlet of the cyclone dust collection cone 3 is located above the side thereof, and the exhaust port is located at the top of the cyclone dust collection cone 3. The induced draft fan 2 is an axial flow fan and is located inside the main frame 1. The induced draft fan 2 is arranged at the front of the main frame 1, and the induced draft fan 2 faces forward. The induced draft fan 2 is in the shape of a wind tube as a whole. A motor 22 is installed in the middle of the wind tube. A fan blade 21 is installed on the shaft of the motor 22. The fan blade 21 rotates to drive the air suction.

[0019] The motor 22 preferably uses a common three-phase asynchronous motor. If a speed regulation function is required, a frequency regulator can be installed. The frequency regulator is electrically connected to the three-phase asynchronous motor, that is, the speed of the motor 22 can be adjusted by frequency regulation to adjust the amount of induced air.

[0020] In order to better remove dust, a filter chamber 31 may be preferably provided at the top of the cyclone dust cone 3 , and a filter element may be installed inside the filter chamber 31 for filtering the gas discharged from the exhaust port of the cyclone dust cone 3 .

[0021] The underground dust collector needs to keep moving along with the tunnel boring machine when in use, and the dust collector is required to be easy to move. The number of wheels installed on the coal mine dust removal equipment of this embodiment is four, and more wheels can be installed as needed. In order to easily control the direction of movement, at least two of the four wheels need to use universal wheels 5, and at this time, the two universal wheels 5 are installed at the front or at the rear at the same time. When the position is fixed, the universal wheels 5 need to be locked to prevent them from moving at will. A preferred locking method is to set a brake locking device 51. After braking, the universal wheels 5 cannot move at will, and the entire dust collector can work safely and stably in a fixed position.

[0022] The above are only preferred embodiments of the present invention and are 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 in the protection scope of the present invention.

Claims

1. A dust removal device for coal mines, characterized in that: It includes a main frame, an induced draft fan, a cyclone dust collection cone, an ash collection drawer and wheels, wherein the wheels are installed at the bottom of the main frame, the induced draft fan, the cyclone dust collection cone and the ash collection drawer are arranged on the main frame, the induced draft fan is connected to the cyclone dust collection cone through a pipeline, the ash collection drawer is arranged below the cyclone dust collection cone, and the bottom of the cyclone dust collection cone is communicated with the top of the ash collection drawer; the air inlet of the cyclone dust collection cone is located above the side thereof, and the exhaust port is located at the top of the cyclone dust collection cone; the induced draft fan is an axial flow fan and is located inside the main frame, the induced draft fan is arranged at the front of the main frame, and the air inlet of the induced draft fan faces forward.

2. The dust removal equipment for coal mines according to claim 1, characterized in that: The electric motor used by the axial flow fan is a three-phase asynchronous motor, which is electrically connected to a frequency converter and has its speed controlled by the frequency converter.

3. The dust removal equipment for coal mines according to claim 2, characterized in that: A filter chamber is provided on the top of the cyclone dust collecting cone, and a filter element is installed in the filter chamber for filtering the gas discharged from the exhaust port of the cyclone dust collecting cone.

4. The dust removal equipment for coal mines according to claim 3, characterized in that: The number of the wheels is four, two of which are universal wheels, and the two universal wheels are arranged at the rear of the main frame.

5. The dust removal equipment for coal mines according to claim 3, characterized in that: There are four wheels, all of which are universal wheels, and at least the two rear wheels are provided with brake locking devices.

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