Dust removal device and tunneling device with same

Abstract

The utility model provides a dedusting device and a tunneling device with the dedusting device, the dedusting device comprises a spraying piece, a foam assembly and a water supply assembly, the spraying piece is provided with a foam flow channel and a water flow channel which are mutually independent, one end of the spraying piece is provided with a foam inlet and a water inlet, and the other end of the spraying piece is provided with a foam outlet and a water outlet. The foam inlet and the foam outlet are respectively communicated with the foam runner, and the water inlet and the water outlet are respectively communicated with the water runner; the foam assembly is provided with a foam pipeline, the foam pipeline communicates with the foam inlet, and the foam assembly is used for providing foam for the spraying piece; the water supply assembly is provided with a water supply pipeline, the water supply pipeline communicates with the water inlet, and the water supply assembly is used for providing water for the spraying piece. According to the technical scheme provided by the utility model, the problems that the dust removal effect is poor and water resources are wasted when water mist or foam is sprayed for dust removal in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, and in particular, to a dust removal device and a tunneling device having the same. Background Art

[0002] During the operation of a roadheader, a large amount of dust is generated when the cutting head cuts the rock stratum. The dust will not only affect the sight and physical health of the staff, but also cause an explosion when the dust concentration in the roadway reaches a certain level, seriously threatening the lives of the staff at the tunneling face.

[0003] At present, most of the dust removal devices at the tunneling face adopt spray dust reduction or foam dust removal. Among them, the water consumption of spray dust removal is relatively large, and when using foam dust reduction, the dust may fly again due to the rapid evaporation of the water in the foam, resulting in an unpersistent dust reduction effect. Summary of the Utility Model

[0004] The utility model provides a dust removal device and a tunneling device having the same, so as to solve the problems of poor dust removal effect and waste of water resources when spraying water mist or foam for dust removal in the prior art.

[0005] According to one aspect of the utility model, a dust removal device is provided. The dust removal device includes: a spraying member having independent foam flow channels and water flow channels. One end of the spraying member is provided with a foam inlet and a water inlet, and the other end of the spraying member is provided with a foam outlet and a water outlet. The foam inlet and the foam outlet are respectively communicated with the foam flow channels, and the water inlet and the water outlet are respectively communicated with the water flow channels; a foam assembly having a foam pipeline communicated with the foam inlet, and the foam assembly is used for providing foam to the spraying member; a water supply assembly having a water supply pipeline communicated with the water inlet, and the water supply assembly is used for providing water to the spraying member.

[0006] Further, the spraying member includes: a housing having a first installation groove and a second installation groove, and the housing has a foam inlet, a water inlet, a foam outlet and a water outlet; a first pipeline disposed in the first installation groove, and the first pipeline forms a foam flow channel; a second pipeline disposed in the second installation groove, and the second pipeline forms a water flow channel.

[0007] Further, both the first installation groove and the second installation groove are annularly disposed in the housing, and the second installation groove is located on the outer periphery of the first installation groove.

[0008] Further, the housing includes a front cover plate and a rear cover plate. One side of the front cover plate is provided with a foam outlet and a water outlet, and the other side of the rear cover plate away from the front cover plate is provided with a foam inlet and a water inlet. The first installation groove and the second installation groove are disposed on the side of the rear cover plate facing the front cover plate, and the front cover plate and the rear cover plate are detachably connected.

[0009] Further, the middle part of the housing has an installation opening which penetrates through the housing and is used for installing and fixing the housing.

[0010] Further, the spraying member includes a plurality of foam outlets and a plurality of water outlets. The plurality of foam outlets are arranged at intervals in a ring on the spraying member, and the plurality of water outlets are arranged at intervals in a ring on the spraying member. The ring formed by the plurality of foam outlets and the ring formed by the plurality of water outlets are concentrically arranged, and the ring formed by the plurality of foam outlets is located inside the ring formed by the plurality of water outlets.

[0011] Further, the foam assembly includes a foam generator, a high-pressure air pipe and a high-pressure water pipe. The high-pressure air pipe and the high-pressure water pipe are respectively connected to the foam generator, and the outlet of the foam generator is communicated with the foam pipeline.

[0012] Further, the water supply assembly includes a water pump and a frequency converter. The outlet of the water pump is communicated with the water supply pipeline, the frequency converter is electrically connected to the water pump, and the water pump and the frequency converter cooperate to adjust the spraying frequency of the water outlet.

[0013] According to one aspect of the present invention, a tunneling device is provided. The tunneling device includes a tunneling machine and the above-mentioned dust removal device, and the dust removal device is arranged on the tunneling machine.

[0014] Further, the tunneling machine includes a machine body and a cutting head. The cutting head is movably arranged on the machine body, the spraying member is arranged on the cutting head, and the foam assembly and the water supply assembly are arranged on the machine body.

[0015] Applying the technical solution of the present invention, in the dust removal device, the spraying member has independent foam flow channels and water flow channels. The foam assembly can supply foam to the spraying member, and the water supply assembly can supply water to the spraying member. In this way, the cooperation of foam and spray can be realized to jointly remove dust, greatly improving the dust removal effect and efficiency. Through the above settings, compared with the separate water mist dust removal and foam dust removal in the prior art, the foam dust removal can cover the dust source without gaps, fundamentally preventing the dust from spreading outwards. The water mist dust removal adsorbs the dust in the air through the fine particles generated by spraying, improving the dust removal effect. The foam can greatly reduce the surface tension of water, quickly increase the speed of dust being wetted, and the cooperation of foam and water mist for dust removal can save water resources while ensuring the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 The structural schematic diagram of the tunneling device provided by the present invention is shown;

[0018] Figure 2 Shows the overall structural schematic diagram of the spraying member provided by the present utility model;

[0019] Figure 3 Shows the structural schematic diagram of the rear cover plate provided by the present utility model;

[0020] Figure 4 Shows the structural schematic diagram of the front cover plate provided by the present utility model;

[0021] Figure 5 Shows the structural schematic diagram of the first pipeline and the second pipeline provided by the present utility model.

[0022] Among them, the above-mentioned drawings include the following reference numerals:

[0023] 10, dust removal device;

[0024] 100, spraying member;

[0025] 110, housing;

[0026] 111, first installation groove;

[0027] 112, second installation groove;

[0028] 113, foam inlet;

[0029] 114, water inlet;

[0030] 115, foam outlet;

[0031] 116, water outlet;

[0032] 117, front cover plate;

[0033] 118, rear cover plate;

[0034] 119, installation port;

[0035] 120, first pipeline;

[0036] 130, second pipeline;

[0037] 140, foam spray head;

[0038] 150, atomizing spray head;

[0039] 200, foam assembly;

[0040] 210, foam pipeline;

[0041] 220, foam generator;

[0042] 230, high-pressure air duct;

[0043] 240, high-pressure water pipe;

[0044] 300, Water supply assembly;

[0045] 310, Water supply pipeline. Specific embodiments

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0047] As Figures 1 to 5 shown, an embodiment of the present invention provides a dust removal device 10. The dust removal device 10 includes a spraying member 100, a foam assembly 200, and a water supply assembly 300. The spraying member 100 has independent foam channels and water channels. One end of the spraying member 100 is provided with a foam inlet 113 and a water inlet 114, and the other end of the spraying member 100 is provided with a foam outlet 115 and a water outlet 116. The foam inlet 113 and the foam outlet 115 are respectively communicated with the foam channels, and the water inlet 114 and the water outlet 116 are respectively communicated with the water channels. The foam assembly 200 has a foam pipeline 210, and the foam pipeline 210 is communicated with the foam inlet 113. The foam assembly 200 is used to provide foam to the spraying member 100. The water supply assembly 300 has a water supply pipeline 310, and the water supply pipeline 310 is communicated with the water inlet 114. The water supply assembly 300 is used to provide water to the spraying member 100.

[0048] Applying the technical solution of the present invention, in the dust removal device 10, the spraying member 100 has independent foam channels and water channels. The foam inlet 113 and the foam outlet 115 are respectively communicated with the foam channels, and the water inlet 114 and the water outlet 116 are respectively communicated with the water channels. Moreover, the foam assembly 200 provides foam to the foam inlet 113 of the spraying member 100 through the foam pipeline 210 and then sprays the foam through the foam outlet 115; the water supply assembly 300 provides water to the water inlet 114 of the spraying member 100 through the water supply pipeline 310 and then sprays water mist through the water outlet 116. In this way, the cooperation of foam and spray can be realized for dust removal. Compared with the separate water mist dust removal and foam dust removal in the prior art, the foam dust removal can cover the dust source without gaps, fundamentally preventing the dust from spreading outwards. The water mist dust removal adsorbs the dust in the air through the fine particles generated by spraying, improving the dust removal effect. The foam can greatly reduce the surface tension of water, quickly increase the speed of dust wetting, and the combined use of foam and water mist for dust removal can save water resources while ensuring the dust removal effect.

[0049] Among them, the foam flow channel and the water flow channel on the spraying member 100 can be formed by integrally molding channels within the spraying member 100, or pipelines can be arranged within the spraying member 100 to form the flow channels.

[0050] Such as Figure 2 , Figure 3 and Figure 5 shown, the spraying member 100 includes: a housing 110, a first pipeline 120, and a second pipeline 130. Specifically, the housing 110 has a first installation groove 111 and a second installation groove 112, and the housing 110 has a foam inlet 113, a water inlet 114, a foam outlet 115, and a water outlet 116; the first pipeline 120 is arranged in the first installation groove 111, and the first pipeline 120 forms a foam flow channel; the second pipeline 130 is arranged in the second installation groove 112, and the second pipeline 130 forms a water flow channel. By additionally arranging pipelines to form the flow channels, it is convenient to design and process the housing 110, and the first installation groove 111 and the second installation groove 112 are arranged on the housing 110 to fix the first pipeline 120 and the second pipeline 130, facilitating the installation of the pipelines.

[0051] Among them, the first pipeline 120 and the second pipeline 130 can be arranged in a straight line within the housing 110, or can be arranged in a ring shape. Specifically, referring to Figure 3 , both the first installation groove 111 and the second installation groove 112 are arranged in a ring shape within the housing 110, and the second installation groove 112 is located on the outer periphery of the first installation groove 111.

[0052] Through the above arrangement, the second installation groove 112 is located on the outer periphery of the first installation groove 111, the water mist dust removal is on the outer periphery of the foam dust removal, and the water mist and the foam dust removal can complement each other to cover dust of different particle sizes. The foam dust removal can capture larger dust particles, while the water mist can capture finer dust, and the coverage range of the water mist dust removal is larger, enabling the coverage range of the foam and the water mist dust removal to be larger. In addition, if the foam dissipates, the water mist dust removal can further suppress the dust that is raised again. Such an arrangement can improve the dust removal effect.

[0053] Such as Figures 2 to 4 shown, the housing 110 includes a front cover plate 117 and a rear cover plate 118. One side of the front cover plate 117 is provided with a foam outlet 115 and a water outlet 116, the side of the rear cover plate 118 away from the front cover plate 117 is provided with a foam inlet 113 and a water inlet 114, the first installation groove 111 and the second installation groove 112 are arranged on the side of the rear cover plate 118 facing the front cover plate 117, and the front cover plate 117 and the rear cover plate 118 are detachably connected.

[0054] With the above - mentioned scheme, the front cover plate 117 and the rear cover plate 118 are detachably connected, which can facilitate the installation of the first pipeline 120 and the second pipeline 130 inside the housing 110, and is convenient for cleaning and maintenance, as well as for repairing the structures inside the housing, the first pipeline 120 and the second pipeline 130. It helps the user to easily replace damaged components and reduces the costs of repair and replacement.

[0055] In other embodiments of the present application, the specific detachable connection method between the front cover plate 117 and the rear cover plate 118 is not limited, and other connection methods such as screws and buckles can also be used, as long as the detachable connection can be achieved.

[0056] Among them, on the rear cover plate 118 of the housing 110, a first installation groove 111 and a second installation groove 112 are provided. By setting annular protrusions on both the inner and outer sides of the first installation groove 111, the first pipeline 120 can be restricted to play a positioning role. By arranging protrusion structures at intervals around the second installation groove 112, the second pipeline 130 can be limited. And the annular protrusion structure and the pipeline achieve surface contact, which can reduce the pressure borne by the first pipeline 120 and the second pipeline 130 due to the high - pressure pipeline, so that they are stably arranged inside the housing 110 of the spraying part 100, which helps to enhance the stability of the connection between the pipeline and the housing 110.

[0057] Furthermore, in the middle of the housing 110, there is an installation opening 119, and the installation opening 119 runs through the housing 110. The installation opening 119 is used for installing and fixing the housing 110. Through the above - mentioned setting, the housing 110 can be fixed to the cutting head through the installation opening 119. Specifically, a base for installing the housing 110 can be set on the cutting head, and the base and the installation opening 119 are fixedly connected by bolts. So that when the cutting head is working, dust removal can be carried out simultaneously through the dust removal device.

[0058] Specifically, referring to Figure 4 , the spraying part 100 includes a plurality of foam outlets 115 and a plurality of water outlets 116. The plurality of foam outlets 115 are arranged at intervals in a ring on the spraying part 100, the plurality of water outlets 116 are arranged at intervals in a ring on the spraying part 100, the ring formed by the plurality of foam outlets 115 is concentric with the ring formed by the plurality of water outlets 116, and the ring formed by the plurality of foam outlets 115 is located inside the ring formed by the plurality of water outlets 116.

[0059] Through the above - mentioned setting, by arranging a plurality of foam outlets 115 and water outlets 116 arranged in a ring on the front cover plate 117 of the spraying part 100, it helps the installation of the foam nozzles 140 and atomizing nozzles 150 on the first pipeline 120 and the second pipeline 130, and the plurality of foam outlets 115 and water outlets 116 arranged in a ring can increase the range of the cooperation between foam and water mist for dust removal and enhance the dust removal effect.

[0060] In this application, the number of foam outlets 115 and multiple water outlets 116 is not limited, and the number of foam nozzles 140 and atomizing nozzles 150 is adapted to them. In this application, three foam outlets 115 and six water outlets 116 are provided.

[0061] As Figure 1 As shown, the foam assembly 200 includes a foam generator 220, a high-pressure air duct 230, and a high-pressure water pipe 240. The high-pressure air duct 230 and the high-pressure water pipe 240 are respectively connected to the foam generator 220, and the outlet of the foam generator 220 is communicated with the foam pipeline 210. With such a setting, the high-pressure water pipe 240 and the high-pressure air duct 230 are simultaneously connected to the foam generator 220. In the foam generator 220, high-pressure dust-removing water and additives are used to generate foam, and then the generated foam is transported to the foam flow channel on the spraying member 100 through the foam pipeline 210 by high-pressure air flow. At the same time, the water supply pipeline 310 transports water to the water flow channel installed on the spraying member. The water mist and the foam act simultaneously to perform dust reduction in a timely manner when the cutting head cuts the rock stratum to generate dust.

[0062] Among them, by preparing foam with additives and dust-removing water in the foam generator 220, the high-pressure air flow transported by the high-pressure air duct 230 transports the foam prepared by the foam generator 220 to the foam nozzle through the foam pipeline 210.

[0063] Here, the air pressure of the high-pressure air duct 230 is generally 0.3 - 0.7 MPa, and the water pressure of the high-pressure water pipe 240 is generally 3 - 5 MPa.

[0064] Specifically, the water supply assembly 300 includes a water pump and a frequency converter. The outlet of the water pump is communicated with the water supply pipeline 310, the frequency converter is electrically connected to the water pump, and the water pump and the frequency converter cooperate to adjust the spraying frequency of the water outlet. With the above setting, by changing the parameters of the frequency converter and cooperating with the water pump to adjust the spraying frequency of the water outlet 116, intermittent water mist can be generated through the above structure, avoiding the problems of large water consumption and easy formation of roadway water accumulation in traditional water mist dust removal. In addition, foam dust removal itself also has the advantage of small water consumption. With such a setting, the water consumption for dust removal can be further reduced.

[0065] According to one aspect of the present utility model, a tunneling device is provided. The tunneling device includes a tunneling machine and the above-mentioned dust removal device 10, and the dust removal device 10 is arranged on the tunneling machine. The dust removal device 10 in this application has a simple structure, is easy to be installed on the tunneling machine, and can be flexibly set according to the dust removal requirements. Moreover, by arranging the dust removal device 10 on the tunneling machine, dust removal operations can be carried out while the tunneling machine is working to further reduce the dust in the roadway.

[0066] Furthermore, the roadheader includes a machine body and a cutting head. The cutting head is movably arranged on the machine body. The spraying member 100 is arranged on the cutting head, and the foam assembly 200 and the water supply assembly 300 are arranged on the machine body. With the above arrangement, the spraying member 100 is arranged on the cutting head, so that the dust removal range of the foam and the water mist only exists near the cutting head, avoiding the large-area settlement of the water mist and foam from blocking the sight of the staff and ensuring that the staff can normally control the roadheader.

[0067] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0068] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0069] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, up, down, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0070] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the attached drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0071] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional declaration, the above terms have no special meaning, and thus should not be construed as limiting the protection scope of the present utility model.

[0072] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dust removal device, characterized in that, The dust removal device includes: A spraying member (100), the spraying member (100) having independent foam channels and water channels. One end of the spraying member (100) is provided with a foam inlet (113) and a water inlet (114), and the other end of the spraying member (100) is provided with a foam outlet (115) and a water outlet (116). The foam inlet (113) and the foam outlet (115) are respectively communicated with the foam channels, and the water inlet (114) and the water outlet (116) are respectively communicated with the water channels; A foam assembly (200) having a foam pipeline (210), the foam pipeline (210) being communicated with the foam inlet (113), and the foam assembly (200) being used for supplying foam to the spraying member (100); A water supply assembly (300) having a water supply pipeline (310), the water supply pipeline (310) being communicated with the water inlet (114), and the water supply assembly (300) being used for supplying water to the spraying member (100).

2. The dust removal device according to claim 1, characterized in that, The spraying member (100) includes: A housing (110), the housing (110) having a first installation groove (111) and a second installation groove (112), and the housing (110) having the foam inlet (113), the water inlet (114), the foam outlet (115) and the water outlet (116); A first pipeline (120) arranged in the first installation groove (111), the first pipeline (120) forming the foam channels; A second pipeline (130) arranged in the second installation groove (112), the second pipeline (130) forming the water channels.

3. The dust removal device according to claim 2, wherein Both the first installation groove (111) and the second installation groove (112) are annularly arranged in the housing (110), and the second installation groove (112) is located on the outer periphery of the first installation groove (111).

4. The dust removal device according to claim 3, characterized in that, The housing (110) includes a front cover plate (117) and a rear cover plate (118). One side of the front cover plate (117) is provided with the foam outlet (115) and the water outlet (116), and the side of the rear cover plate (118) away from the front cover plate (117) is provided with the foam inlet (113) and the water inlet (114). The first installation groove (111) and the second installation groove (112) are arranged on the side of the rear cover plate (118) facing the front cover plate (117), and the front cover plate (117) is detachably connected to the rear cover plate (118).

5. The dust removal device according to claim 2, characterized in that, The middle part of the housing (110) has an installation opening (119), the installation opening (119) penetrating through the housing (110), and the installation opening (119) being used for installing and fixing the housing (110).

6. The dust removal device according to claim 1, wherein The spraying member (100) includes a plurality of foam outlets (115) and a plurality of water outlets (116). The plurality of foam outlets (115) are arranged at circumferential intervals on the spraying member (100), and the plurality of water outlets (116) are arranged at circumferential intervals on the spraying member (100). The circle formed by the plurality of foam outlets (115) and the circle formed by the plurality of water outlets (116) are concentrically arranged, and the circle formed by the plurality of foam outlets (115) is located inside the circle formed by the plurality of water outlets (116).

7. The dust removal device according to claim 1, wherein, The foam assembly (200) includes a foam generator (220), a high-pressure air duct (230), and a high-pressure water pipe (240). The high-pressure air duct (230) and the high-pressure water pipe (240) are respectively connected to the foam generator (220), and the outlet of the foam generator (220) is communicated with the foam pipeline (210).

8. The dust removal device according to claim 1, characterized in that, The water supply assembly (300) includes a water pump and a frequency converter. The outlet of the water pump is communicated with the water supply pipeline (310). The frequency converter is electrically connected to the water pump, and the water pump and the frequency converter cooperate to adjust the spraying frequency of the water outlet (116).

9. A tunneling device, characterized in that, The tunneling device includes a tunneling machine and the dust removal device (10) according to any one of claims 1 to 8, and the dust removal device (10) is arranged on the tunneling machine.

10. The tunneling device according to claim 9, characterized in that, The tunneling machine includes a machine body and a cutting head. The cutting head is movably arranged on the machine body. The spraying member is arranged on the cutting head, and the foam assembly (200) and the water supply assembly (300) are arranged on the machine body.

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