Dedusting system of miner-bolter and miner-bolter comprising dedusting system

Abstract

The utility model relates to the technical field of coal roadway tunneling, in particular to a dust removal system of a miner-bolter and the miner-bolter with the dust removal system, and the dust removal system comprises a dust removal fan assembly, a connecting air duct assembly and an air suction opening assembly, the dust removal fan assembly comprises a dust removal fan and a mounting bracket, the dust removal fan is arranged on a sliding device through the mounting bracket, and the sliding device is arranged on a chassis of the miner-bolter in a sliding manner; the air suction opening assembly is arranged on a large cutting arm of the miner-bolter and can synchronously move along with the large cutting arm, and the large cutting arm is arranged on the sliding device. The exhaust inlet assembly is connected with the dust removal fan through the connecting air duct assembly. The dust removal system provided by the utility model is better in dust removal effect; the dust removal fan can be kept horizontal all the time, additional unbalance loading is avoided, noise of the fan is reduced, and the service life of the fan is prolonged; the dust removal fan can synchronously move along with the sliding device and the cutting large arm, the overall length of the connecting air duct assembly is reduced, and long-term stable operation of the system is guaranteed.

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 and the excavating anchor machine containing this dust removal system. BACKGROUND

[0002] Currently, excavating anchor machine is often used in coal mine roadway to carry out mining operation, and the tunneling mode of the excavating anchor machine is once lane forming, and the rock breaking and coal cutting work is completed by the up-down movement of the cutting drum, and the cutting drum width is the roadway width, and it has large cutting area and wide range. During work, a large amount of dust will be generated in the process of rock breaking and coal cutting, and if dust cannot be removed in time and effectively, the visibility of the roadway working area will be greatly reduced, the safety risk will be increased, and the physical and mental health of the coal miners will also be seriously affected.

[0003] The existing excavating anchor machine generally uses a traditional negative pressure dust removal system for dust removal, and the dust removal system is arranged on a temporary support device. The dust removal system suction port is generally fixed at the front end of the temporary support device, and the distance from the dust generating part (i.e. the cutting drum directly generating dust) is far, so the dust cannot be sucked away in time. The dust removal fan is arranged at the rear end of the temporary support device. When the temporary support device is in the roof supporting state, the dust removal fan installed thereon is in an inclined working state. Especially for high roadways, this situation is more serious. The fan is in an inclined working state for a long time, which is more prone to generate additional noise, and the unbalanced load formed has a bad effect on the service life. In addition, the existing dust removal system often needs to be used with a long flexible dust removal air duct, which is easy to be sucked flat by negative pressure, affecting the operation of the entire dust removal system, or a complex air duct structure is used, which has large air resistance, seriously weakens the dust removal air volume, and is difficult to achieve ideal dust removal effect.

[0004] Based on the above, it is urgent to provide an excavating anchor machine dust removal system and an excavating anchor machine containing the dust removal system to solve the problems in the prior art. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an excavating anchor machine dust removal system and an excavating anchor machine containing the dust removal system, and the specific technical solutions are as follows:

[0006] An excavating anchor machine dust removal system comprises a dust removal fan assembly, a connecting air duct assembly and a suction port assembly.

[0007] The dust removal fan assembly comprises a dust removal fan and a mounting bracket, and the dust removal fan is arranged on a sliding device through the mounting bracket. The sliding device is slidingly arranged on the chassis of the excavating anchor machine.

[0008] The suction port assembly is arranged on the cutting boom of the excavating anchor machine and can move synchronously with the cutting boom. The cutting boom is arranged on the sliding device. The suction port assembly is connected with the dust removal fan through the connecting air duct assembly.

[0009] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0010] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0011] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0012] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0013] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0014] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0015] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0016] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0017] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0018] Further, the mounting bracket is arranged on the sliding device, and the sliding device is arranged on the chassis of the roof bolter.

[0019] A roof bolter comprises a chassis, a cutting assembly, a temporary support device and a dust removal system as described above, the cutting assembly is arranged on the chassis, the temporary support device is arranged on the chassis and used for temporarily supporting a roof of a tunnel, the dust removal fan assembly, the connecting air duct assembly, the air inlet assembly and the spray frame of the dust removal system are arranged on the cutting assembly, and the coal blocking curtain is arranged on the temporary support device.

[0020] The technical scheme of the utility model has the following beneficial effects:

[0021] (1) The utility model provides a kind of excavator dust removal system, including dust removal fan assembly, connecting air duct component and suction port component;The dust removal fan assembly includes dust removal fan and mounting bracket, and the dust removal fan is set on sliding device by mounting bracket, and the sliding device is slidably arranged on the chassis of excavator;The suction port component is set on the cutting boom of excavator, can move synchronously with cutting boom, and the cutting boom is arranged on sliding device;The suction port component is connected with dust removal fan by connecting air duct component.The dust removal system provided by the utility model, suction port component is installed on cutting boom (preferably close to the position of cutting drum), and moves synchronously with cutting boom, can first time suck away dust generated in cutting operation, prevent dust diffusion, and the dust removal effect is better;Dust removal fan is installed on mounting bracket, and dust removal fan always keeps horizontal, can ensure that it is in optimum working posture for a long time, avoids additional eccentric load, is favorable for reducing fan noise, and prolongs its service life;Mounting bracket is arranged on sliding device, so that dust removal fan can move synchronously with sliding device and cutting boom, so that the relative position between dust removal fan and suction port component is less changed during cutting, reduce the overall length of connecting air duct component (especially flexible air duct), to effectively reduce system wind resistance, also greatly reduce the possibility that flexible air duct is sucked, ensure long-term stable operation of system.

[0022] (2) In the utility model, the action range of suction port component is only the area near cutting drum, not the whole working face area of traditional excavator, so that smaller dust removal fan model can be selected and matched, to reduce equipment cost and save design space.

[0023] (3) In the utility model, coal curtain and dust cloth curtain can form complete partition together with excavator shovel plate and cutting boom, to isolate dust-containing gas generated by cutting drum in the area near roadway working face, prevent external escape, and the all-around mist curtain composed of spray frame and spray device arranged on coal curtain can cover the whole area of excavator working face, to effectively inhibit dust-containing gas diffusion.

[0024] (4) In the utility model, air outlet end of dust removal fan is also provided with air guide cylinder, and air guide plate with adjustable direction is arranged in air guide cylinder, to guide clean air after dust removal to obliquely upward, to prevent it from directly blowing excavator conveying system, to avoid lifting transported coal powder to form secondary pollution.

[0025] (5) The dust removal system provided by the utility model has simple overall structure, small space occupation and low manufacturing cost.

[0026] 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

[0027] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and serve as an implementation of the exemplary embodiments of the present application and their description are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0028] Figure 1 is a schematic view of a dust removal system mounted on a combined drilling and bolting machine in an embodiment of the present application;

[0029] Figure 2 is a structural schematic view of an air suction port assembly;

[0030] Figure 3 is a structural schematic view of a preferred mounting bracket in an embodiment of the present application;

[0031] Figure 4 is an installation state view of another mounting bracket in an embodiment of the present application;

[0032] Figure 5 is a structural schematic view of an air deflector;

[0033] Figure 6 is a mounting schematic view of a coal blocking screen;

[0034] Among them:

[0035] 1, a dust removal fan assembly, 1.1, a dust removal fan, 1.2, a mounting bracket, 1.3, a wind deflector, 1.3.1, an air deflector, 2, a connecting air duct assembly, 2.1, a flexible air duct, 2.2, a transition air duct, 3, an air suction port assembly, 3.1, an air suction port main body, 3.2, a first expansion part, 3.3, a second expansion part, 3.4, an inspection cover plate, 4, a base plate, 5, a cutting boom, 6, a sliding device, 7, a cutting drum, 8, a spray frame, 9, a coal blocking screen, 10, a temporary support device, 11, a dust cloth screen. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood to indicate or imply relative importance or imply the number of the indicated technical features. Therefore, the features defined with "first", "second", etc. 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.

[0039] Embodiments

[0040] Referring to Figure 1 , the embodiment provides a dust removal system of a combined heading and bolting machine, comprising a dust removal fan assembly 1, a connecting air duct assembly 2 and an air suction port assembly 3; the dust removal fan assembly 1 comprises a dust removal fan 1.1 and a mounting bracket 1.2, and the dust removal fan 1.1 is arranged on the mounting bracket 1.2; in the embodiment, the dust removal fan 1.1 is arranged on the mounting bracket 1.2, so that the dust removal fan 1.1 is in a horizontal state as a whole when working, and compared with the inclined working state of the dust removal fan in the existing dust removal system, noise is less likely to be generated, and the service life of the dust removal fan 1.1 is prolonged.

[0041] The air suction port assembly 3 is arranged on a cutting main arm 5 of the combined heading and bolting machine, and is preferably arranged at a position close to a cutting drum 7; the air suction port assembly 3 can move synchronously with the cutting main arm 5, so that the air suction port assembly 3 is always close to a cutting working face, and dust generated in cutting work can be timely sucked away, and the dust removal effect is improved. In addition, since the range of action is only the vicinity of the cutting drum 7, rather than the entire working face area of the combined heading and bolting machine in the traditional way, a dust removal fan of a smaller dust removal capacity type can be selected and matched, the equipment cost is reduced, and the design space is saved.

[0042] In the embodiment, the mounting bracket 1.2 is arranged on a sliding device 6, the sliding device 6 is slidingly arranged on a chassis 4 of the combined heading and bolting machine, the cutting main arm 5 is hinged to the sliding device 6, the sliding device 6 can drive the cutting main arm 5 to move back and forth on the chassis 4 along the heading direction of the roadway, and the dust removal fan 1.1 moves synchronously with the sliding device 6.

[0043] In the embodiment, the air suction port assembly 3 is arranged on the cutting main arm 5 of the combined heading and bolting machine, and the dust removal fan 1.1 is arranged on the mounting bracket 1.2 and moves synchronously with the sliding device 6, so that the relative position between the dust removal fan 1.1 and the air suction port assembly 3 changes little during cutting, the overall length of the connecting air duct assembly 2 (especially the flexible air duct) is reduced, the system air resistance is effectively reduced, the possibility of the flexible air duct being sucked is greatly reduced, and long-term stable operation of the system is ensured.

[0044] In the embodiment, referring to Figure 1 and Figure 3Preferably, the mounting bracket 1.2 is a whole frame structure, the upper surface of which is flat and used for placing the dust removal fan 1.1, and the lower end of which is fixed to the sliding device 6 by bolts.

[0045] As another preferred technical solution, referring to Figure 4 , the mounting bracket 1.2 is provided with a walking mechanism, the front end of the mounting bracket 1.2 is connected with the sliding device 6, and the walking mechanism is arranged at the bottom of the mounting bracket 1.2. Preferably, the walking mechanism is a walking wheel. The sliding device 6 drives the mounting bracket 1.2 to walk on the chassis 4.

[0046] In this embodiment, referring to Figure 1 and Figure 5 , the air outlet end of the dust removal fan 1.1 is provided with a wind guide cylinder 1.3, and the wind guide cylinder 1.3 is internally provided with wind guide plates 1.3.1. The wind guide plates 1.3.1 are provided in plurality, and the plurality of wind guide plates 1.3.1 are rotationally connected with the body of the wind guide cylinder 1.3, so that the angle of the wind guide plates 1.3.1 can be adjusted to meet the adjustment requirement of the air outlet direction of the dust removal fan.

[0047] Referring to Figure 2 , in this embodiment, the air suction port assembly 3 comprises an air suction port body 3.1, a first extension part 3.2 and a second extension part 3.3. The first extension part 3.2 and the second extension part 3.3 are respectively arranged at the left and right sides of the air suction end of the air suction port body 3.1. The width of the air suction port formed by cooperation of the first extension part 3.2, the second extension part 3.3 and the air suction port body 3.1 matches the width of the cutting drum 7, thereby improving the dust removal efficiency.

[0048] In this embodiment, a filter screen is arranged at the inlet of the air suction port and inside the air suction port body 3.1, for filtering dust. A maintenance opening is arranged on the air suction port body 3.1, and a maintenance cover plate 3.4 is arranged at the maintenance opening. When the filter screen inside the air suction port body 3.1 needs to be replaced or the dirt needs to be cleaned, the maintenance cover plate 3.4 can be opened to perform maintenance, replacement or cleaning through the maintenance opening.

[0049] In this embodiment, referring to Figure 1The suction port assembly 3 is connected with the dust removal fan 1.1 through a connecting air duct assembly 2, the connecting air duct assembly 2 comprises a flexible air duct 2.1 and a transition air duct 2.2, the first end of the flexible air duct 2.1 is connected with the suction port assembly 3, the second end of the flexible air duct 2.1 is connected with the first end of the transition air duct 2.2, and the second end of the transition air duct 2.2 is connected with the suction port of the dust removal fan 1.1. The flexible air duct 2.1 is arranged to adapt to the position change of the suction port assembly 3 along with the movement of the cutting boom 5; the connecting air duct assembly 2 provided in the embodiment has simple structure, shortened length (especially the flexible air duct 2.1), ensures the normal operation of the whole dust removal system, and can also reduce the air resistance and improve the dust removal effect.

[0050] In the embodiment, preferably, the transition air duct 2.2 is a rigid air duct, the transition air duct 2.2 gradually changes in length, and the cross-sectional size of the second end of the transition air duct 2.2 is larger than that of the first end, so as to reduce the air volume loss and ensure the dust removal effect.

[0051] Referring to Figure 1 and Figure 6 , the dust removal system provided in the embodiment further comprises a spraying frame 8 and a coal blocking curtain 9, the spraying frame 8 is arranged on the cutting boom 5 close to the cutting drum 7, preferably, the width of the spraying frame 8 matches the width of the cutting drum 7, and a plurality of spraying points are arranged on the spraying frame 8, so that large-area spraying can be performed to improve the dust suppression effect.

[0052] Referring to Figure 6 , the coal blocking curtain 9 is arranged on the temporary support device 10 close to one end of the cutting drum 7 and is located on the left and right sides of the cutting boom 5, the coal blocking curtain 9 is provided with a spraying device, which comprises a spraying frame and a spraying block, and spraying points are arranged on the spraying frame and the spraying block for spraying and dust suppression. In the embodiment, a dust cloth curtain 11 is arranged between the left coal blocking curtain and the right coal blocking curtain, the dust cloth curtain 11 is used to close the space above the cutting boom 5, and the left coal blocking curtain, the right coal blocking curtain, the dust cloth curtain 11 and the shovel plate of the excavating and anchoring machine together with the cutting boom can form a complete partition to isolate the dust-containing gas generated by the cutting drum in the vicinity of the roadway working face and prevent the dust generated by the cutting operation from spreading.

[0053] The embodiment also provides a tunnel anchor machine, comprising a chassis 4, a cutting assembly, a temporary support device 10 and a dust removal system as described above, the cutting assembly comprising a cutting boom 5, a sliding device 6 and a cutting drum 7, the sliding device 6 being slidingly arranged on the chassis 4, the chassis 4 being provided with a track for sliding of the sliding device 6, further comprising a driving device for driving the sliding device 6 to slide, the driving device being preferably a driving oil cylinder; the cutting boom 5 being hinged to the sliding device 6 and being movable back and forth along the tunneling direction of the roadway with the sliding device, the cutting drum 7 being arranged at the end of the cutting boom 5 and being used for cutting operation. The temporary support device 10 is arranged on the chassis 4 and is used for temporary support of the roof of the roadway; the dust removal fan assembly 1, the connecting air duct assembly 2, the air suction opening assembly 3 and the spraying frame 8 of the dust removal system are arranged on the cutting assembly, and the coal blocking curtain 9 is arranged on the temporary support device 10.

[0054] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall fall within the protection scope of the present application.

Claims

1. A dust removal system for an anchor miner, characterized in that: It comprises a dust removal fan assembly (1), a connecting air duct assembly (2) and an air suction port assembly (3); The dust removal fan assembly (1) comprises a dust removal fan (1.1) and a mounting bracket (1.2); the dust removal fan (1.1) is arranged on a sliding device (6) via the mounting bracket (1.2); and the sliding device (6) is slidably arranged on a chassis (4) of the anchor miner; The air suction port assembly (3) is arranged on the cutting arm (5) of the anchor miner and can move synchronously with the cutting arm (5). The cutting arm (5) is arranged on a sliding device (6). The air suction port assembly (3) is connected to the dust removal fan (1.1) via the connecting air duct assembly (2).

2. The dust removal system for bolter miners according to claim 1, characterized in that: A walking mechanism is provided on the mounting bracket (1.2).

3. The dust removal system for an anchor miner according to claim 1, characterized in that: An air guide tube (1.3) is provided at the air outlet end of the dust removal fan (1.1), and an air guide plate (1.3.1) is provided inside the air guide tube (1.3).

4. The dust removal system for an anchor miner according to claim 1, characterized in that: The air suction port assembly (3) comprises an air suction port body (3.1), a first extension portion (3.2) and a second extension portion (3.3); the first extension portion (3.2) and the second extension portion (3.3) are respectively arranged on the left and right sides of the air suction end of the air suction port body (3.1); the width of the air suction port formed by the first extension portion (3.2), the second extension portion (3.3) and the air suction port body (3.1) matches the width of the cutting drum (7).

5. The dust removal system for bolter miners according to claim 4, characterized in that: A filter is provided at the inlet of the air suction port and inside the air suction port body (3.1); an inspection port is provided on the air suction port body (3.1), and an inspection cover plate (3.4) is provided at the inspection port.

6. The dust removal system for an anchor miner according to claim 1, characterized in that: The connecting air duct assembly (2) comprises a flexible air duct (2.1) and a transition air duct (2.2); the first end of the flexible air duct (2.1) is connected to the air suction port assembly (3); the second end of the flexible air duct (2.1) is connected to the first end of the transition air duct (2.2); and the second end of the transition air duct (2.2) is connected to the air suction port of the dust removal fan (1.1).

7. The dust removal system for an anchor miner according to claim 6, characterized in that: The transition air duct (2.2) is a rigid air duct, the size of the transition air duct (2.2) gradually changes along the length direction, and the cross-sectional size of the second end of the transition air duct (2.2) is larger than the cross-sectional size of the first end.

8. The dust removal system for an anchor miner according to any one of claims 1 to 7, characterized in that: It also includes a spray rack (8) and a coal blocking curtain (9), wherein the spray rack (8) is arranged on the cutting arm (5) at a position close to the cutting drum (7); and the coal blocking curtain (9) is arranged on one end of the temporary support device (10) close to the cutting drum (7).

9. The dust removal system for an anchor miner according to claim 8, characterized in that: The width of the spray rack (8) matches the width of the cutting drum (7); a spray device is provided on the coal blocking curtain (9); The temporary support device (10) is further provided with a dustproof curtain (11), and the dustproof curtain (11) is arranged above the cutting arm (5).

10. An anchor miner, characterized in that: The invention comprises a chassis (4), a cutting assembly, a temporary support device (10) and a dust removal system according to any one of claims 1 to 9, wherein the cutting assembly is slidably arranged on the chassis (4), the temporary support device (10) is arranged on the chassis (4) and is used to temporarily support the top of the tunnel; the dust removal fan assembly (1), the connecting air duct assembly (2), the air suction port assembly (3) and the spray rack (8) of the dust removal system are arranged on the cutting assembly, and the coal curtain (9) is arranged on the temporary support device (10).

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