Dust removal system for continuous mining machine and continuous mining machine comprising dust removal system

Abstract

The utility model relates to the technical field of open pit coal mine mining, in particular to a dust removal system for a continuous mining machine and the continuous mining machine comprising the same, the dust removal system comprises an air duct opening assembly, a dust removal air duct and a dust remover assembly which are connected in sequence, and the dust removal air duct and the dust remover assembly are arranged on a continuous mining machine body; the air duct opening assembly comprises an upper air duct opening assembly and a lower air duct opening assembly, and the upper air duct opening assembly is arranged on a large cutting arm of the continuous mining machine and can move along with the large cutting arm; and the lower air duct opening assembly is arranged on the continuous mining machine body. The dust removal system is arranged on the continuous mining machine, dust removal is carried out synchronously along with operation of the continuous mining machine, smoothness of airflow on a working face is guaranteed, dust removal efficiency is improved, in addition, the situation that operation of mining equipment is affected by road surface icing caused by water sprinkling dust removal can be avoided, safety of construction work is guaranteed, meanwhile, manpower input can be reduced, and production cost is reduced. The cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of open-pit coal mining, in particular to a dust removal system for a continuous mining machine and a continuous mining machine containing the system. Background Art

[0002] Open-pit coal mines generate large amounts of dust during the mining process. This dust not only affects the normal operation of open-pit mine equipment, causing it to malfunction or fail, but also exposes operators to diseases such as pneumoconiosis due to long-term exposure to dust. To improve the working environment in open-pit mines, existing methods generally use water trucks to spray dust in the mines. However, this dust suppression method is labor-intensive, costly, and wastes significant water resources. Furthermore, during winter construction, spraying can cause road surfaces to freeze, impacting the operation of mining and transportation equipment.

[0003] Based on the above, there is an urgent need to provide a dust removal system for a continuous mining machine and a continuous mining machine containing the system to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of this utility model is to provide a dust removal system for a continuous mining machine and a continuous mining machine containing the system. The specific technical solutions are as follows:

[0005] A dust removal system for a continuous mining machine comprises an air duct opening assembly, a dust removal air duct and a dust collector assembly connected in sequence, wherein the dust removal air duct and the dust collector assembly are arranged on the continuous mining machine body;

[0006] The air duct opening assembly includes an upper air duct opening assembly and a lower air duct opening assembly. The upper air duct opening assembly is arranged on the cutting arm of the continuous mining machine and can move with the cutting arm; the lower air duct opening assembly is arranged on the continuous mining machine body.

[0007] Furthermore, the dust removal air duct includes a front air duct, an air distribution device and a rear air duct connected in sequence, the front air duct is connected to the air duct opening assembly, and the rear air duct is connected to the dust collector assembly.

[0008] Furthermore, the upper air duct assembly includes a plurality of upper air ducts, and the plurality of upper air ducts are arranged side by side on the cutting arm;

[0009] The downwind passage assembly comprises a plurality of downwind passages, which are arranged at the lower part of the continuous mining machine body and between the two groups of cutting devices.

[0010] Furthermore, there are multiple front air ducts, and the front air ducts correspond one-to-one to the upper air duct openings and the lower air duct openings.

[0011] Furthermore, the dust collector assembly includes a dust collector and an exhaust duct, the air suction end of the dust collector is connected to the rear air duct, and the air outlet end of the dust collector is connected to the exhaust duct.

[0012] Furthermore, the dust collector assembly also includes a support frame, and the dust collector and the exhaust duct are arranged on the continuous mining machine body through the support frame.

[0013] A continuous mining machine includes a continuous mining machine body, a cutting device, a cutting arm and the dust removal system as described above. The cutting device is arranged on the continuous mining machine body and is used to perform cutting operations on coal mines. The dust removal system is arranged on the mining machine body and the cutting arm.

[0014] Furthermore, the cutting devices are provided in two groups, and the two groups of cutting devices are arranged on the continuous mining machine body in a vertical direction.

[0015] Furthermore, the cutting device located on the upper side is connected to the continuous mining machine body through the cutting arm.

[0016] The application of the technical solution of the utility model has the following beneficial effects:

[0017] (1) The utility model provides a dust removal system for a continuous mining machine, comprising an air duct opening assembly, a dust removal air duct and a dust collector assembly connected in sequence, wherein the dust removal air duct and the dust collector assembly are arranged on the continuous mining machine body; the air duct opening assembly comprises an upper air duct opening assembly and a lower air duct opening assembly, wherein the upper air duct opening assembly is arranged on the cutting arm of the continuous mining machine and can move with the cutting arm; the lower air duct opening assembly is arranged on the continuous mining machine body. The dust removal system provided in this embodiment is arranged on the continuous mining machine, and dust removal is performed synchronously with the operation of the continuous mining machine to ensure the smoothness of the airflow on the working surface. In particular, the air duct opening assembly includes an upper air duct opening assembly and a lower air duct opening assembly. The upper air duct opening assembly is arranged on the cutting arm of the continuous mining machine near the cutting device. The upper air duct opening assembly can move with the cutting arm. The upper air duct opening assembly is close to the dust-producing point, which can quickly remove dust and improve the dust removal efficiency. In addition, the dust removal system provided by the utility model can avoid the road surface icing caused by sprinkling water for dust removal, which affects the operation of the mining equipment, ensures the safety of construction work, and at the same time reduces manpower input and further reduces costs.

[0018] (2) In the present invention, the dust in the upper layer of the coal mine (such as the height range of 5-10 meters) is removed by the upwind passage assembly, and the dust in the lower layer of the coal mine (such as the height range below 5 meters) is removed by the downwind passage assembly. The upwind passage assembly and the downwind passage assembly cooperate to improve the dust removal efficiency.

[0019] (3) In the present invention, the dust removal air duct includes a front air duct, an air distribution device and a rear air duct connected in sequence, the front air duct is connected to the air duct opening assembly, and the rear air duct is connected to the dust collector assembly; by setting the air distribution device, the rear air duct is connected to multiple air duct openings through multiple front air ducts, thereby meeting the needs of rapid dust removal.

[0020] (4) The dust removal system provided by the utility model has a simple overall structure, occupies a small space, and has a low manufacturing cost.

[0021] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of a dust removal system installed on a continuous mining machine in an embodiment of the present utility model;

[0024] Figure 2 It is a structural diagram of the dust removal air duct;

[0025] in:

[0026] 1. Air duct opening assembly, 1.1. Upper air duct opening, 1.2. Lower air duct opening, 2. Dust removal duct, 2.1. Front air duct, 2.2. Air distribution device, 2.3. Rear air duct, 3. Dust collector assembly, 3.1. Dust collector, 3.2. Exhaust duct, 3.3. Support frame, 4. Continuous mining machine body, 5. Cutting device, 6. Cab. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] 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 the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0030] Example

[0031] See also Figure 1 The present embodiment provides a dust removal system for a continuous mining machine, comprising an air duct opening assembly 1, a dust removal duct 2 and a dust collector assembly 3 connected in sequence, wherein the dust removal duct 2 and the dust collector assembly 3 are arranged on the continuous mining machine body 4; the air duct opening assembly 1 comprises an upper air duct opening assembly and a lower air duct opening assembly, wherein the upper air duct opening assembly is arranged on the cutting arm of the continuous mining machine and can move with the cutting arm; the upper air duct opening assembly comprises a plurality of upper air duct openings 1.1 (preferably 2 in this embodiment), and the plurality of upper air duct openings 1.1 are arranged side by side on the cutting arm, preferably, the upper air duct opening 1.1 is arranged on the cutting arm near the cutting device 5, and the upper air duct opening 1.1 is close to the dust-generating point, which can quickly remove dust and improve the dust removal efficiency.

[0032] The downwind passage assembly is arranged on the continuous mining machine body 4, and the downwind passage assembly includes multiple downwind passages 1.2 (2 in this embodiment). Preferably, the multiple downwind passages 1.2 are arranged at the lower part of the continuous mining machine body 4, between the two groups of cutting devices 5.

[0033] The dust in the upper layer of the coal mine (such as the height range of 5-10 meters) is removed through the upwind passage assembly, and the dust in the lower layer of the coal mine (such as the height range below 5 meters) is removed through the downwind passage assembly. The upwind passage assembly and the downwind passage assembly work together to improve the dust removal efficiency.

[0034] See also Figure 2 In this embodiment, the dust removal duct 2 includes a front duct 2.1, an air distribution device 2.2 and a rear duct 2.3 connected in sequence, and the air distribution device 2.2 is a hollow structure containing multiple connection ports; the front duct 2.1 is connected to the air duct port assembly 1, and the rear duct 2.3 is connected to the dust collector assembly 3.

[0035] Preferably, there are multiple front air ducts 2.1, each corresponding to the upper air duct opening 1.1 and the lower air duct opening 1.2. Among the multiple front air ducts 2.1, at least the front air duct 2.1 connected to the upper air duct opening 1.1 is a flexible air duct to adapt to the movement of the upper air duct opening 1.1 with the cutting arm.

[0036] In addition, to save space, the downwind duct 1.2 and the front duct 2.1 connected thereto can be built into the continuous mining machine body 4, and the suction end of the downwind duct 1.2 is exposed for a certain length to meet the dust removal requirements.

[0037] In this embodiment, the dust collector assembly 3 includes a dust collector 3.1 and an exhaust duct 3.2. The suction end of the dust collector 3.1 is connected to the rear air duct 2.3, and the outlet end of the dust collector 3.1 is connected to the exhaust duct 3.2. Preferably, the dust collector 3.1 adopts a dry negative pressure dust collector, and the dry negative pressure dust collector and the exhaust duct 3.2 are arranged on the continuous mining machine body 4 through a support frame 3.3.

[0038] The dust removal system provided in this embodiment is arranged on a continuous mining machine, and dust removal is performed synchronously with the operation of the continuous mining machine, thereby ensuring the smooth flow of air on the working surface and improving the dust removal efficiency. In addition, it can avoid road icing caused by sprinkling water for dust removal, affecting the operation of the mining equipment, ensuring the safety of construction work, and at the same time reducing manpower input and further reducing costs.

[0039] This embodiment further provides a continuous miner, comprising a continuous miner body 4, a cutting device 5, a cutting arm and the dust removal system as described above, wherein the dust removal system is provided on the miner body 4 and the cutting arm.

[0040] See also Figure 1 The cutting device 5 is provided with two groups, and the two groups of cutting devices 5 are arranged on the continuous mining machine body 4 in the vertical direction for cutting coal mines. Preferably, the cutting device 5 located on the lower side is directly arranged on the lower side of the mining machine body 4, and the cutting device 5 located on the upper side is connected to the continuous mining machine body 4 through a cutting arm. A lifting cylinder is provided between the cutting arm and the continuous mining machine body 4. The lifting cylinder drives the cutting arm to move up and down, thereby driving the cutting device 5 to move up and down to adjust the cutting position.

[0041] In this embodiment, a cab 6 is further provided on the continuous mining machine body 4, and the dry negative pressure dust collector is arranged away from the cab 6 to reduce the noise damage to the crew in the cab.

[0042] The continuous mining machine provided in this embodiment can quickly and conveniently achieve dust removal through the dust removal system provided thereon, without the need for additional manpower to spray water for dust removal, thus saving costs.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dust removal system for a continuous mining machine, characterized in that: It comprises an air duct opening assembly (1), a dust removal air duct (2) and a dust collector assembly (3) connected in sequence, wherein the dust removal air duct (2) and the dust collector assembly (3) are arranged on a continuous mining machine body (4); The air duct opening assembly (1) comprises an upper air duct opening assembly and a lower air duct opening assembly. The upper air duct opening assembly is arranged on the cutting arm of the continuous mining machine and can move with the cutting arm; the lower air duct opening assembly is arranged on the continuous mining machine body (4).

2. A dust removal system for a continuous mining machine according to claim 1, characterized in that: The dust removal air duct (2) comprises a front air duct (2.1), an air distribution device (2.2) and a rear air duct (2.3) connected in sequence; the front air duct (2.1) is connected to the air duct opening assembly (1), and the rear air duct (2.3) is connected to the dust collector assembly (3).

3. A dust removal system for a continuous mining machine according to claim 2, characterized in that: The upper air duct assembly comprises a plurality of upper air ducts (1.1), and the plurality of upper air ducts (1.1) are arranged side by side on the cutting arm; The downwind passage assembly comprises a plurality of downwind passages (1.2), which are arranged at the lower part of the continuous mining machine body (4) and located between two groups of cutting devices (5).

4. A dust removal system for a continuous mining machine according to claim 3, characterized in that: A plurality of the front air ducts (2.1) are provided, and the front air ducts (2.1) correspond one-to-one to the upper air duct openings (1.1) and the lower air duct openings (1.2).

5. A dust removal system for a continuous mining machine according to any one of claims 1 to 4, characterized in that: The dust collector assembly (3) comprises a dust collector (3.1) and an exhaust duct (3.2); the air suction end of the dust collector (3.1) is connected to the rear air duct (2.3); and the air outlet end of the dust collector (3.1) is connected to the exhaust duct (3.2).

6. A dust removal system for a continuous mining machine according to claim 5, characterized in that: The dust collector assembly (3) further comprises a support frame (3.3), and the dust collector (3.1) and the exhaust duct (3.2) are arranged on the continuous mining machine body (4) via the support frame (3.3).

7. A continuous mining machine, characterized in that: The invention comprises a continuous mining machine body (4), a cutting device (5), a cutting arm and a dust removal system as described in any one of claims 1 to 6, wherein the cutting device (5) is arranged on the continuous mining machine body (4) and is used for cutting coal mines, and the dust removal system is arranged on the mining machine body (4) and the cutting arm.

8. A continuous mining machine according to claim 7, characterized in that: The cutting devices (5) are provided with two groups, and the two groups of cutting devices (5) are arranged on the continuous mining machine body (4) in a vertical direction.

9. A continuous mining machine according to claim 8, characterized in that: The cutting device (5) located on the upper side is connected to the continuous mining machine body (4) via a cutting arm.

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