Bolt miner dust removal system suitable for thin seam roadway

Abstract

The utility model relates to the technical field of coal roadway tunneling, in particular to a miner-bolter dust removal system suitable for a thin seam roadway, which comprises a dust removal fan and an air duct component, and the dust removal fan is arranged on an electrical side platform; the air duct assembly is connected with the dust removal fan, and an air suction opening of the air duct assembly is formed between the shield and the cutting part; the air duct assembly comprises a switching air duct, a flexible air duct, a transition air duct and a compression air duct, the switching air duct is connected with the dust removal fan, the transition air duct is adjustably connected with the switching air duct through the flexible air duct, and the compression air duct is rotatably connected with the transition air duct. According to the utility model, on one hand, the dust removal fan is arranged on the electrical side platform, the overall installation height is low, and the dust removal fan is suitable for a thin coal seam roadway; and on the other hand, the exhaust inlet is led to the position between the shield and the cutting large arm of the cutting part through the air duct assembly, the supporting operation of the roof bolter is not affected, and the problem that in the prior art, the roof bolter interferes with the air duct during operation is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the coal lane tunneling technical field, concretely relates to a kind of excavating anchor machine dust removal system suitable for thin coal seam roadway. BACKGROUND

[0002] The on-board dust removal system of existing excavating anchor integrated machine, its dust remover and hydraulic fan are installed on the shield of excavating anchor integrated machine, and the air inlet is introduced to the working face by a set of compressed air duct, and the dust removal system is suitable for conventional medium-thick coal seam roadway, and there is enough space to install dust removal fan and air duct;For thin coal seam roadway, due to the influence of equipment space limitation and body height, the existing on-board dust removal system cannot be applied to thin coal seam roadway, to solve the dust removal problem of thin coal seam roadway, in the current technical solution, dust removal fan is installed on the electrical side platform of excavating anchor integrated machine, and the air inlet is introduced to the air inlets on the left and right sides of the shield by air duct, which can be applied to thin coal seam roadway, but since the dust removal air duct is arranged above the roof bolter, the air duct is easily interfered with the roof bolter during operation, affecting support and dust removal.

[0003] Based on the above, it is urgent to provide an excavating anchor machine dust removal system suitable for thin coal seam roadway to solve the problems in the prior art. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an excavating anchor machine dust removal system suitable for thin coal seam roadway, and the specific technical scheme is as follows:

[0005] An excavating anchor machine dust removal system suitable for thin coal seam roadway, comprising a dust removal fan and an air duct assembly, wherein the dust removal fan is arranged on an electrical side platform, the air duct assembly is connected with the dust removal fan, and the air inlet of the air duct assembly is arranged between the shield and the cutting part.

[0006] The air duct assembly comprises an adapter air duct, a flexible air duct, a transition air duct and a compressed air duct, the adapter air duct is connected with the dust removal fan, the transition air duct is adjustably connected with the adapter air duct through the flexible air duct, and the compressed air duct is rotationally connected with the transition air duct.

[0007] Further, the adapter air duct is connected with the air inlet of the dust removal fan, and the included angle between the adapter air duct and the dust removal fan in the horizontal direction is 20°-40°.

[0008] Further, the end surface of the adapter air duct connected with the flexible air duct is an inclined surface, and the included angle between the inclined surface and the end surface of the air inlet of the dust removal fan is 20°-40°.

[0009] Further, the transition air duct is arranged on the shield, and the transition air duct is arranged in parallel with the dust removal fan.

[0010] Further, the end face of the transition air duct connected with the flexible air duct is an inclined face, and the inclined face of the transition air duct is parallel to the inclined face of the adapter air duct.

[0011] Further, the compression air duct comprises a bottom plate and a first side plate, the first side plate is symmetrically arranged on both sides of the bottom plate along the length direction of the bottom plate, and the bottom plate is rotationally connected with the transition air duct.

[0012] Further, second side plates are symmetrically arranged on both sides of the air suction port of the compression air duct, and the maximum distance between the two second side plates matches the width of the roadway.

[0013] Further, the first side plate and the second side plate are both made of rubber plates.

[0014] Further, the end of the shield is further provided with a coal blocking curtain, and the coal blocking curtain is located on both sides of the air suction port of the air duct assembly.

[0015] The technical scheme of the utility model has the following beneficial effects:

[0016] (1) The utility model provides a kind of thin coal seam roadway's tunneling and anchoring machine dust removal system, including dust removal fan and air duct assembly, the dust removal fan is set on electrical side platform;The air duct assembly is connected with dust removal fan, and the air suction port of the air duct assembly is arranged between shield and cutting part;The air duct assembly includes adapter air duct, flexible air duct, transition air duct and compression air duct, the adapter air duct is connected with dust removal fan, the transition air duct is adjustably connected with the adapter air duct by flexible air duct, and the compression air duct is rotationally connected with the transition air duct.In the utility model, on the one hand, the dust removal fan is set on electrical side platform, and overall installation height is lower, suitable for thin coal seam roadway;On the other hand, air suction port is introduced to between the cutting arm of shield and cutting part by air duct assembly, does not affect the support operation of roof bolter, solves the problem of interference between anchor machine operation and air duct in prior art.

[0017] (2) In the utility model, the included angle between the adapter air duct and the dust removal fan in horizontal direction is 20 °-40 °, so that the adapter air duct and the dust removal fan are gently transitioned, and the minimum dust suction resistance is ensured.

[0018] (3) In the utility model, the end face of the adapter air duct connected with the flexible air duct is an inclined face, and the included angle between the inclined face and the end face of the air suction port of the dust removal fan is 20 °-40 °;The end face of the transition air duct connected with the flexible air duct is an inclined face, and the inclined face of the transition air duct is parallel to the inclined face of the adapter air duct, so that the gentle transition of the flexible air duct is ensured, and the flexible air duct is not interfered with the roof bolter.

[0019] (4) The dust removal air duct formed by the switching air duct, the flexible air duct, the transition air duct and the compressed air duct in sequence is arranged smoothly as a whole, without cross-section mutation and right-angle elbow, so that the dust suction resistance is small and the dust removal efficiency is high.

[0020] (5) The second side plates are symmetrically arranged at the two sides of the air suction port of the compressed air duct, the maximum spacing between the two second side plates is matched with the width of the roadway, the upper portions of the two second side plates are overlapped with the roof of the roadway and the lower portions are overlapped with the loading part when the shield is lifted to the position of the roof of the roadway, so that a closed space is formed in the working face, and then effective negative pressure is formed to improve the dust removal efficiency.

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

[0022] The drawings constituting a part of this application are used to provide further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:

[0023] Figure 1 is a schematic view of a dust removal system mounted on a combined drilling and bolting machine in the embodiment of the utility model;

[0024] Figure 2 is a partial structure schematic view of Figure 1 ;

[0025] Figure 3 is a structure schematic view of the compressed air duct (the second side plate is not shown);

[0026] Among them:

[0027] 1, dust removal fan, 2, air duct assembly, 2.1, switching air duct, 2.2, flexible air duct, 2.3, transition air duct, 2.4, compressed air duct, 2.4.1, bottom plate, 2.4.2, first side plate, 2.4.3, second side plate, 2.5, rotating shaft, 3, shield, 4, coal screen, 5, electrical side platform, 6, cutting part, 7, loading part, 8, roof bolter. DETAILED DESCRIPTION

[0028] The embodiments of the utility model will be described in detail below in combination with the drawings, but the utility model can be implemented in various different ways as defined and covered.

[0029] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0030] In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more.

[0031] Embodiment

[0032] Referring to Figure 1 and Figure 2 , the embodiment provides a dust removal system suitable for thin seam roadway tunneling anchor machine, which comprises a dust removal fan 1 and an air duct assembly 2, the dust removal fan 1 is arranged on the electrical side platform 5, the air duct assembly 2 is connected with the dust removal fan 1, and the air inlet of the air duct assembly 2 is arranged between the shield 3 and the cutting arm of the cutting part 6.

[0033] In the embodiment, preferably, the overall shape of the dust removal fan 1 is adapted to the electrical side platform 5, the dust removal fan 1 is arranged on the electrical side platform 5, so that the dust removal fan 1 is not affected by the lifting of the cutting part 6, the lifting and sliding of the scraper conveying part, and the overall height of the tunneling anchor machine can be effectively reduced to adapt to the thin seam roadway.

[0034] Referring to Figure 2 , the air duct assembly 2 comprises an adapter air duct 2.1, a flexible air duct 2.2, a transition air duct 2.3 and a compression air duct 2.4, the adapter air duct 2.1 is connected with the dust removal fan 1, the transition air duct 2.3 is adjustably connected with the adapter air duct 2.1 through the flexible air duct 2.2, and the compression air duct 2.4 is rotationally connected with the transition air duct 2.3.

[0035] Preferably, the adapter air duct 2.1 is connected with the air inlet of the dust removal fan 2, and the included angle between the adapter air duct 2.1 and the dust removal fan 2 in the horizontal direction is 20°-40°, and the included angle in the embodiment is preferably 30°, so that the adapter air duct 2.1 and the dust removal fan 2 are smoothly connected, and the dust suction resistance is minimized.

[0036] In this embodiment, the transition air duct 2.3 is arranged on the shield 3, and the transition air duct 2.3 follows the shield 3 to rise and fall; in this embodiment, the transition air duct 2.3 is arranged in parallel with the dust removal fan 2, and the flexible air duct 2.2 is arranged between the transition air duct 2.3 and the adapter air duct 2.1, so that the vertical position of the transition air duct 2.3 can be adjusted, and meanwhile the rising and falling of the shield 3 is not affected.

[0037] Preferably, the end surface of the adapter air duct 2.1 connected with the flexible air duct 2.2 is an inclined surface, and the angle between the inclined surface and the end surface of the suction port of the dust removal fan 2 is 20°-40°, preferably 30°; the end surface of the transition air duct 2.3 connected with the flexible air duct 2.2 is an inclined surface, and the inclined surface of the transition air duct 2.3 is parallel to the inclined surface of the adapter air duct 2.1, and through the arrangement of the two parallel inclined surfaces, the smooth transition of the flexible air duct 2.2 is ensured without distortion, and meanwhile the flexible air duct 2.2 is ensured not to interfere with the roof bolter 8.

[0038] In this embodiment, referring to Figure 1 and Figure 3 , the compression air duct 2.4 is arranged below the shield 3 and above the cutting boom of the cutting part 6; the compression air duct 2.4 comprises a bottom plate 2.4.1 and a first side plate 2.4.2, the first side plate 2.4.2 is symmetrically arranged on both sides of the bottom plate 2.4.1 along the length direction of the bottom plate 2.4.1; and the bottom plate 2.4.1 is rotationally connected with the transition air duct 2.3 through a rotating shaft 2.5. Preferably, the first side plate 2.4.2 is made of rubber plate with fire-retardant and anti-static properties, and the rubber plate is a flexible structure, when the cutting boom is lifted, the compression air duct 2.4 can be compressed, and the bottom plate 2.4.1 rotates around the rotating shaft 2.5; when the cutting boom is lowered, the compression air duct 2.4 can be naturally opened, and through the arrangement of the compression air duct 2.4 and the rotationally connecting of the bottom plate 2.4.1 with the transition air duct 2.3, the lifting of the cutting boom can be adapted, and the operation of the cutting part 6 is not affected.

[0039] In this embodiment, referring to Figure 1 , the suction port of the compression air duct 2.4 is symmetrically provided with a second side plate 2.4.3 on both sides, and the maximum distance between the two second side plates 2.4.3 matches the width of the roadway, and the second side plate 2.4.3 is preferably made of rubber plate with fire-retardant and anti-static properties, when the shield 3 is lifted to the position of the roof of the roadway, the upper part of the two second side plates 2.4.3 is overlapped with the roof of the roadway, and the lower part is overlapped with the loading part 7, so that a closed space can be formed on the working face, and then a negative pressure is formed, and the dust removal efficiency is improved.

[0040] In this embodiment, referring to Figure 1 and Figure 2The end of the shield 3 is further provided with a coal blocking curtain 4 located on both sides of the air duct assembly 2 air inlet, and the coal blocking curtain 4 helps to form a negative pressure in the working face, thereby improving the dust removal efficiency.

[0041] The dust removal system provided by the embodiment has simple structure, is suitable for thin seam roadway dust removal operation, the dust removal system air inlet is close to the working face, and does not affect other mechanism operation, and the dust removal operation efficiency is high.

[0042] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dust removal system for roadheaders and anchor cutters suitable for thin coal seam roadways, characterized in that, It includes a dust removal fan (1) and a duct assembly (2), wherein the dust removal fan (1) is mounted on the electrical side platform (5); the duct assembly (2) is connected to the dust removal fan (1), and the air intake of the duct assembly (2) is located between the shield (3) and the cutting section (6); The air duct assembly (2) includes a transfer air duct (2.1), a flexible air duct (2.2), a transition air duct (2.3), and a compression air duct (2.4). The transfer air duct (2.1) is connected to the dust removal fan (1). The transition air duct (2.3) is adjustablely connected to the transfer air duct (2.1) through the flexible air duct (2.2). The compression air duct (2.4) is rotatably connected to the transition air duct (2.3).

2. The dust removal system for roadheaders and anchor cutters suitable for thin coal seam roadways according to claim 1, characterized in that, The transfer duct (2.1) is connected to the air inlet of the dust removal fan (1); the angle between the transfer duct (2.1) and the dust removal fan (1) in the horizontal direction is 20°-40°.

3. The dust removal system for roadheaders and anchor bolts suitable for thin coal seam roadways according to claim 2, characterized in that, The end face connecting the transfer duct (2.1) and the flexible duct (2.2) is an inclined surface, and the angle between the inclined surface and the end face of the suction port of the dust removal fan (1) is 20°-40°.

4. A dust removal system for roadheaders and anchor cutters suitable for thin coal seam roadways according to claim 3, characterized in that, The transition air duct (2.3) is installed on the shield (3) and is arranged parallel to the dust removal fan (1).

5. A dust removal system for roadheaders and anchor cutters suitable for thin coal seam roadways according to claim 4, characterized in that, The end face connecting the transition duct (2.3) and the flexible duct (2.2) is an inclined surface, and the inclined surface of the transition duct (2.3) is parallel to the inclined surface of the transfer duct (2.1).

6. A dust removal system for roadheaders and anchor bolters suitable for thin coal seam roadways according to claim 1, characterized in that, The compressed air duct (2.4) includes a base plate (2.4.1) and a first side plate (2.4.2). The first side plate (2.4.2) is symmetrically arranged on both sides of the base plate (2.4.1) along the length direction of the base plate (2.4.1). The base plate (2.4.1) is rotatably connected to the transition air duct (2.3).

7. A dust removal system for roadheaders and anchor bolters suitable for thin coal seam roadways according to claim 6, characterized in that, The compressed air duct (2.4) has symmetrical second side plates (2.4.3) on both sides of the air inlet, and the maximum distance between the two second side plates (2.4.3) matches the width of the roadway.

8. A dust removal system for roadheaders and anchor cutters suitable for thin coal seam roadways according to claim 7, characterized in that, Both the first side plate (2.4.2) and the second side plate (2.4.3) are made of rubber sheets.

9. A dust removal system for roadheaders and anchor cutters suitable for thin coal seam roadways according to any one of claims 1-8, characterized in that, The shield (3) is also provided with a coal curtain (4) at its end, which is located on both sides of the air intake of the air duct assembly (2).

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