CN111287680B - Cooling dust-removing equipment - Google Patents
Cooling dust-removing equipment Download PDFInfo
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- CN111287680B CN111287680B CN201811488165.2A CN201811488165A CN111287680B CN 111287680 B CN111287680 B CN 111287680B CN 201811488165 A CN201811488165 A CN 201811488165A CN 111287680 B CN111287680 B CN 111287680B
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- liquid
- liquid inlet
- air inlet
- inlet pipeline
- mixing device
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- 238000001816 cooling Methods 0.000 title claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 200
- 239000000428 dust Substances 0.000 claims abstract description 45
- 230000001629 suppression Effects 0.000 claims abstract description 38
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 35
- 238000010276 construction Methods 0.000 abstract description 32
- 238000000034 method Methods 0.000 description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000012423 maintenance Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides cooling and dust-removing equipment. The cooling dust suppression equipment includes: a first liquid inlet pipe; an air intake duct; the mixing device is communicated with the first liquid inlet pipeline and the air inlet pipeline, and liquid entering from the first liquid inlet pipeline and gas entering from the air inlet pipeline are mixed in the mixing device; the control structure is positioned at the downstream position of the mixing device and is provided with a closed state and a first open state, and when the control structure is in the closed state, the mixed gas-liquid mixture cannot flow onto the drill bit; when the control structure is in the first opening state, the mixed gas-liquid mixture flows onto the drill bit through the control structure. The invention effectively solves the problems of low working efficiency, poor construction quality and poor construction environment of drilling construction operation in the prior art.
Description
Technical Field
The invention relates to the technical field of drilling construction, in particular to cooling and dust-removing equipment.
Background
At present, in the roadway drilling construction process, in order to reduce impurities such as dust generated in the drilling process, the following two modes are generally adopted for cooling and dust suppression: wet drilling and dry drilling (also known as negative pressure suction dust suppression). However, the two methods described above have the following problems, respectively:
1. although the wet drilling method has simple structure and low cost, the wet drilling method has the problems of serious roadway water accumulation, difficult operation and the like;
2. the dry drilling method has the problems of dry working environment, difficult water accumulation, large noise pollution, tunnel dust, high maintenance cost and the like.
In summary, both methods cannot meet the drilling construction requirement, affect the working efficiency and the construction quality of the drilling construction operation, and cause poor construction environment.
Disclosure of Invention
The invention mainly aims to provide cooling dust-removing equipment for solving the problems of low working efficiency, poor construction quality and poor construction environment of drilling construction operation in the prior art.
In order to achieve the above object, the present invention provides a cooling dust suppression apparatus, comprising: a first liquid inlet pipe; an air intake duct; the mixing device is communicated with the first liquid inlet pipeline and the air inlet pipeline, and liquid entering from the first liquid inlet pipeline and gas entering from the air inlet pipeline are mixed in the mixing device; the control structure is positioned at the downstream position of the mixing device and is provided with a closed state and a first open state, and when the control structure is in the closed state, the mixed gas-liquid mixture cannot flow onto the drill bit; when the control structure is in the first opening state, the mixed gas-liquid mixture flows onto the drill bit through the control structure.
Further, the control structure also has a second open state, and the cooling dust suppression device further comprises: and when the control structure is in a second opening state, liquid entering from the second liquid inlet pipeline flows onto the drill bit through the control structure so as to clean the drill bit.
Further, the mixing device includes: the body is provided with a cavity and a discharge channel communicated with the cavity, the first liquid inlet pipeline and the air inlet pipeline are both communicated with the cavity, and the mixed gas-liquid mixture in the cavity is discharged out of the body through the discharge channel; wherein, the inlet direction of first inlet channel and the inlet direction of inlet channel are the contained angle setting.
Further, the cooling dust-removing device further comprises an air inlet joint connected with the air inlet pipeline, the body is provided with a first installation channel communicated with the cavity, and at least part of the air inlet joint extends into the first installation channel and is connected with the first installation channel.
Further, the cooling dust-removing equipment further comprises a liquid inlet connector connected with the first liquid inlet pipeline, the body is provided with a second installation channel communicated with the cavity, and at least part of the liquid inlet connector extends into the second installation channel and is connected with the second installation channel in a clamping or threaded manner or through a first fastener; wherein, the air inlet of air inlet joint is close to the discharge channel with respect to the inlet of feed liquor joint.
Further, the cooling dust suppression equipment still includes: the connecting piece is connected with one end, far away from the air inlet pipeline, of the air inlet connector, the air inlet connector is connected with the first installation channel through the connecting piece, the connecting piece is clamped or connected with the first installation channel in a threaded manner or connected through a second fastener, the connecting piece is provided with a liquid passing hole, and liquid in the liquid inlet connector is communicated with the cavity through the liquid passing hole; wherein, the air inlet of air inlet joint is close to the discharge channel with respect to the via hole and sets up.
Further, the connecting piece is of a cylindrical structure, the axial direction of the cylindrical structure is consistent with the extending direction of the first mounting channel, the conical part of the air inlet joint stretches into the cylindrical structure, and the side wall of the cylindrical structure is provided with a liquid passing hole.
Further, the cooling dust suppression device further comprises a plurality of sealing elements, at least part of the sealing elements are arranged between the outer surface of the connecting element and the inner wall of the first installation channel, and at least part of the sealing elements are arranged between the outer surface of the air inlet joint and the inner wall of the first installation channel.
Further, the cooling dust suppression equipment still includes: the switch structure is arranged on the air inlet pipeline and is used for communicating the air inlet pipeline with the mixing device or disconnecting the air inlet pipeline from the mixing device.
Further, the cooling dust suppression equipment still includes: the one-way valve is arranged between the switch structure and the mixing device, and the conducting direction of the one-way valve is the direction from the switch structure to the mixing device.
Further, the cooling dust suppression equipment still includes: the third liquid inlet pipeline is communicated with the first liquid inlet pipeline; the fourth liquid inlet pipeline is communicated with the first liquid inlet pipeline; the switching structure is arranged between the liquid supply device and the third liquid inlet pipeline and the fourth liquid inlet pipeline, and is provided with a first working state and a second working state, when the switching structure is in the first working state, liquid discharged from the liquid supply device sequentially passes through the switching structure, the third liquid inlet pipeline and the first liquid inlet pipeline and then enters the mixing device; when the switching structure is in the second working state, liquid discharged from the liquid supply device sequentially passes through the switching structure, the fourth liquid inlet pipeline and the first liquid inlet pipeline and then enters the mixing device.
Further, the cooling dust suppression equipment still includes: the first throttling structure is used for communicating the third liquid inlet pipeline with the first liquid inlet pipeline; the second throttling structure and the fourth liquid inlet pipeline are communicated with the first liquid inlet pipeline through the second throttling structure.
By applying the technical scheme of the invention, in the operation process of the cooling and dust-removing equipment, the control structure is operated so that the control structure is in a first opening state, so that liquid entering from the first liquid inlet pipeline and gas entering from the air inlet pipeline are mixed in the mixing device, and the mixed gas-liquid mixture flows onto the drill bit through the control structure to cool and remove dust from the drill bit, thereby improving the working efficiency and drilling quality of drilling operation of the drill bit and solving the problems of low working efficiency, poor construction quality and poor construction environment of drilling construction operation in the prior art; when the drill bit is not required to be cooled and dust-removed, the control structure is operated so that the control structure is in a closed state, and the gas-liquid mixture mixed in the mixing device cannot flow onto the drill bit.
Compared with two cooling dust suppression methods in the prior art, the cooling dust suppression equipment in the application enables substances flowing to the drill bit to be gas-liquid mixtures, so that the liquid consumption is reduced, and the roadway ponding is avoided. Meanwhile, the cooling dust-removing equipment has a simple structure, is easy to process and realize, and further reduces the processing and maintenance cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of a cooling dust suppression apparatus according to the present invention; and
fig. 2 shows a cross-sectional view of a mixing device of the cooling and dust suppression apparatus of fig. 1.
Wherein the above figures include the following reference numerals:
10. a first liquid inlet pipe; 20. an air intake duct; 30. a mixing device; 31. a body; 311. a cavity; 312. a discharge passage; 313. a first mounting channel; 314. a second mounting channel; 40. a control structure; 50. a second liquid inlet pipe; 60. an air inlet joint; 61. an air inlet; 70. a connecting piece; 71. a liquid passing hole; 80. a seal; 90. a switch structure; 101. a third liquid inlet pipe; 102. a fourth liquid inlet pipe; 110. a switching structure; 121. a first throttle structure; 122. a second throttle structure; 130. a one-way valve; 140. a water jacket.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.
In order to solve the problems of low working efficiency, poor construction quality and poor construction environment of drilling construction operation in the prior art, the application provides cooling dust suppression equipment.
As shown in fig. 1, the cooling and dust-removing apparatus includes a first liquid inlet pipe 10, an air inlet pipe 20, a mixing device 30, and a control structure 40. Wherein, the first liquid inlet pipe 10 and the air inlet pipe 20 are communicated with the mixing device 30, and liquid entering from the first liquid inlet pipe 10 and gas entering from the air inlet pipe 20 are mixed in the mixing device 30. The control structure 40 is located at a position downstream of the mixing device 30, the control structure 40 has a closed state and a first open state, and when the control structure 40 is in the closed state, the mixed gas-liquid mixture cannot flow onto the drill bit; when the control structure 40 is in the first open state, the mixed gas-liquid mixture flows onto the drill bit via the control structure 40.
By applying the technical scheme of the embodiment, in the operation process of the cooling and dust-removing equipment, the control structure 40 is operated so that the control structure 40 is in a first opening state, so that liquid entering from the first liquid inlet pipeline 10 and gas entering from the air inlet pipeline 20 are mixed in the mixing device 30, and the mixed gas-liquid mixture flows onto the drill bit through the control structure 40 to cool and remove dust from the drill bit, thereby improving the working efficiency and drilling quality of drilling operation of the drill bit, and solving the problems of low working efficiency, poor construction quality and poor construction environment of drilling construction operation in the prior art; when the cooling and dust suppression of the drill bit are not required, the control structure 40 is operated so that the control structure 40 is in a closed state, and the gas-liquid mixture mixed in the mixing device 30 cannot flow onto the drill bit.
Compared with two cooling and dust-removing methods in the prior art, the cooling and dust-removing device in the embodiment ensures that substances flowing onto the drill bit are gas-liquid mixtures, thereby reducing the liquid consumption and avoiding the accumulated water in a roadway. Meanwhile, the cooling dust-removing equipment has a simple structure, is easy to process and realize, and further reduces the processing and maintenance cost.
In the embodiment, the cooling dust-removing equipment reduces the water consumption by 60-80%, and ensures that the roadway floor is free from water accumulation. Meanwhile, noise can not be generated in the operation process of the cooling dust suppression equipment, a good construction environment is provided for the drilling construction process, the reliability of the equipment is improved, and the guarantee is provided for the improvement of the drilling construction quality.
In the present embodiment, the gas conveyed in the intake duct 20 is compressed gas. Alternatively, the compressed gas is a single component or a mixture of components. Thus, the above arrangement ensures that the gas-liquid mixture output from the mixing device 30 is atomized water, and the atomized water can play a role in reducing the temperature of the drill bit and the drill rod, lubricating the drill bit and the drill rod, inhibiting dust and discharging waste residues generated in the drilling process in the roadway drilling construction process.
In this embodiment, the control structure 40 further has a second open state, and the cooling and dust-cleaning apparatus further includes a second liquid inlet pipe 50. When the control structure 40 is in the second open state, the liquid entering from the second liquid inlet pipe 50 flows onto the drill bit through the control structure 40 to clean the drill bit. Specifically, when the cooling and dust-removing device cools and removes dust from the drill bit, the control structure 40 is in the first open state; when the drill bit is not required to be cooled and dust-removed, the control structure 40 is in a closed state; when the drill bit is jammed or blocked during the drilling process, the control structure 40 is operated to make the control structure 40 in the second open state, so that the liquid in the second liquid inlet pipeline 50 is conveyed to the drill bit through the control structure 40 to flush the drill bit.
In this embodiment, the second liquid inlet pipe 50 is filled with high-pressure liquid.
Alternatively, the control structure 40 is a three-position four-way shut-off valve. The three-position four-way stop valve comprises three functions of a middle position locking (an opening and closing state), a water-air mixing position (a first opening state) and a high-pressure water level (a second opening state). When the water level control device is normally used, the water level control device is switched between two functions of the middle position and the water-air mixing position, and the high-pressure water level is only used when necessary, for example: when the drill rod bit is blocked, the high-pressure water is used for flushing the blocked drill rod of the drill rod bit.
In the present embodiment, the liquid flowing in the first liquid inlet pipe 10 and the second liquid inlet pipe 50 is tap water, and may be various kinds of water for well engineering, water for mines, emulsion, or the like.
As shown in fig. 2, the mixing device 30 includes a body 31. The body 31 has a cavity 311 and a discharge channel 312 communicated with the cavity 311, the first liquid inlet pipe 10 and the air inlet pipe 20 are both communicated with the cavity 311, and the gas-liquid mixture after being mixed in the cavity 311 is discharged out of the body 31 through the discharge channel 312. Wherein, the liquid inlet direction of the first liquid inlet pipeline 10 and the air inlet direction of the air inlet pipeline 20 form an included angle. Alternatively, the liquid inlet direction of the first liquid inlet pipe 10 is arranged perpendicular to the air inlet direction of the air inlet pipe 20.
Specifically, the liquid entering from the first liquid inlet pipe 10 and the gas entering from the gas inlet pipe 20 are mixed in the cavity 311, the mixed gas-liquid mixture is discharged from the discharge channel 312, and when the control structure 40 is in the first open state, the gas-liquid mixture enters the water jacket 140 of the drilling machine through the control structure 40 and is conveyed to the drill bit through the drill rod. The liquid inlet direction of the first liquid inlet pipe 10 is perpendicular to the air inlet direction of the air inlet pipe 20, so that the first liquid inlet pipe 10 and the air inlet pipe are guaranteed to simultaneously convey gas or liquid, rapid mixing of gas and liquid is achieved, and working efficiency of the mixing device 30 is improved.
In the present embodiment, the size of the mixing device 30 is set according to the construction condition of the cooling and dust-removing apparatus.
As shown in fig. 2, the cooling dust suppression device further includes an air inlet connector 60 connected to the air inlet pipe 20, the body 31 has a first mounting channel 313 in communication with the cavity 311, and at least a portion of the air inlet connector 60 extends into the first mounting channel 313 and is connected to the first mounting channel 313. In this way, the air inlet pipe 20 is connected with the main body 31 through the air inlet joint 60, and the air inlet pipe 20 and the main body 31 are easy and convenient to assemble and disassemble.
Specifically, one end of the air intake duct 20 is connected to an air supply device, the other end of the air intake duct 20 is connected to an air intake joint 60, and air in the air supply device sequentially enters the cavity 311 through the air intake duct 20 and the air intake joint 60.
As shown in fig. 2, the cooling and dust-removing apparatus further includes a liquid inlet connector connected to the first liquid inlet pipe 10, the body 31 has a second mounting channel 314 communicating with the cavity 311, and at least a part of the liquid inlet connector extends into the second mounting channel 314 and is in threaded connection with the second mounting channel 314. Wherein the air inlet 61 of the air inlet joint 60 is arranged close to the discharge channel 312 with respect to the liquid inlet of the liquid inlet joint. Like this, under the condition that air inlet pipe 20 and first feed liquor pipeline 10 carry simultaneously, the aforesaid sets up to guarantee that gas gets into in the cavity 311 earlier than the liquid to realize that gas drives the liquid motion, guarantee that cooling dust suppression equipment can normal operating. Meanwhile, the liquid inlet connector and the second installation channel 314 are connected in the mode that the liquid inlet connector and the second installation channel are easy and convenient to assemble and disassemble, and the labor intensity of workers is reduced.
Specifically, the first liquid inlet pipeline 10 is connected with the body 31 through the liquid inlet connector, so that the first liquid inlet pipeline 10 and the body 31 are easier and simpler to assemble and disassemble, and the labor intensity of workers is reduced.
It should be noted that, the connection manner of the liquid inlet connector and the second mounting channel 314 is not limited thereto. Optionally, the fluid inlet connector is snapped into engagement with the second mounting channel 314 or connected by a first fastener.
In this embodiment, the exhaust channel 312 is disposed parallel to the first mounting channel 313, the first mounting channel 313 is disposed perpendicular to the second mounting channel 314, and the communicating portion between the first mounting channel 313 and the second mounting channel 314 forms the cavity 311 to achieve the purpose of driving the liquid to flow by the gas.
As shown in fig. 2, the cooling dust suppression apparatus further includes a connector 70. Wherein, the connecting piece 70 is connected with one end of the air inlet connector 60 away from the air inlet pipeline 20, the air inlet connector 60 is connected with the first mounting channel 313 through the connecting piece 70, the connecting piece 70 is clamped with the first mounting channel 313, the connecting piece 70 is provided with a liquid passing hole 71, and liquid in the liquid inlet connector is communicated with the cavity 311 through the liquid passing hole 71. Wherein the air inlet 61 of the air inlet joint 60 is arranged close to the discharge channel 312 with respect to the liquid passing hole 71. In this way, the above-mentioned connection manner of the connecting member 70 and the first mounting channel 313 makes the assembly and disassembly of the two easier and simpler, and reduces the labor intensity of the staff.
Specifically, the connecting piece 70 is used for connecting the air inlet connector 60 with the first mounting channel 313 on one hand, and is used for guiding the liquid discharged from the liquid inlet connector into the cavity 311 on the other hand, so as to realize the mixing of the liquid and the gas, further ensure that the gas-liquid mixing is performed in the cavity 311, prevent the gas-liquid from influencing the normal flow of the gas in the air inlet connector 60 and the liquid in the liquid inlet connector in the mixing process, and ensure the mixing continuity.
It should be noted that, the connection manner of the connection member 70 and the first mounting channel 313 is not limited thereto. Alternatively, the connector 70 is threaded with the first mounting channel 313 or by a second fastener.
In this embodiment, the air inlet connector 60 is clamped with the connecting piece 70, the portion of the air inlet connector 60 away from the discharge channel 312 is in threaded connection with the first mounting channel 313, and the connecting piece 70 is clamped with the first mounting channel 313, so that the connection among the air inlet connector 60, the connecting piece 70 and the first mounting channel 313 (the body 31) is more stable, and the structural stability of the mixing device 30 is improved.
As shown in fig. 2, the connector 70 is a cylindrical structure, the axial direction of the cylindrical structure is consistent with the extending direction of the first mounting channel 313, the tapered portion of the air inlet connector 60 extends into the cylindrical structure, and the side wall of the cylindrical structure is provided with a liquid through hole 71. Specifically, the liquid passage 71 is disposed away from the discharge passage 312 with respect to the tapered portion of the air intake joint 60. The structure is simple and easy to process and realize.
Optionally, the plurality of liquid passing holes 71 are multiple, and the plurality of liquid passing holes 71 are arranged at intervals along the circumferential direction and/or the axial direction of the tubular structure.
Optionally, the cooling dust suppression device further comprises a plurality of seals 80, at least part of the seals 80 being arranged between the outer surface of the connection member 70 and the inner wall of the first mounting channel 313, at least part of the seals 80 being arranged between the outer surface of the air inlet joint 60 and the inner wall of the first mounting channel 313. In this way, the sealing member 80 can improve the air tightness of the mixing device 30, and prevent the gas or liquid in the mixing device 30 from leaking to affect the normal operation of the cooling and dust-removing equipment.
As shown in fig. 1, the cooling dust suppression apparatus further includes a switch structure 90. Wherein, the switch structure 90 is disposed on the air intake duct 20, and the switch structure 90 is used for communicating the air intake duct 20 with the mixing device 30 or disconnecting the air intake duct 20 from the mixing device 30. Alternatively, the switching structure 90 is a shut-off valve. Specifically, when the cooling and dust-removing device is required to perform cooling and dust-removing operation on the drill bit, the switch structure 90 is operated, so that the switch structure 90 is in an on state to communicate the air inlet pipeline 20 with the mixing device 30; when the cooling and dust-removing device is not needed to perform cooling and dust-removing operation on the drill bit, the switch structure 90 is operated, so that the switch structure 90 is in a closed state, and the communication between the air inlet pipeline 20 and the mixing device 30 is disconnected.
As shown in fig. 1, the cooling dust suppression apparatus further includes a one-way valve 130. The check valve 130 is disposed between the switch structure 90 and the mixing device 30, and the conducting direction of the check valve 130 is the direction from the switch structure 90 to the mixing device 30. Thus, the arrangement prevents the gas from flowing back in the gas inlet pipeline 20 to influence the normal transportation of the gas, and ensures the fluency of the gas flow.
As shown in fig. 1, the cooling dust suppression apparatus further includes a third liquid inlet pipe 101, a fourth liquid inlet pipe 102, and a switching structure 110. Wherein the third liquid inlet pipe 101 is in communication with the first liquid inlet pipe 10. The fourth inlet conduit 102 communicates with the first inlet conduit 10. The switching structure 110 is arranged between the liquid supply device and the third liquid inlet pipeline 101 and the fourth liquid inlet pipeline 102, the switching structure 110 has a first working state and a second working state, and when the switching structure 110 is in the first working state, liquid discharged from the liquid supply device sequentially passes through the switching structure 110, the third liquid inlet pipeline 101 and the first liquid inlet pipeline 10 and then enters the mixing device 30; when the switching structure 110 is in the second working state, the liquid discharged from the liquid supply device sequentially passes through the switching structure 110, the fourth liquid inlet pipe 102 and the first liquid inlet pipe 10 and then enters the mixing device 30. In this way, the third liquid inlet pipeline 101 and the fourth liquid inlet pipeline 102 are used for conveying liquid, and even if one liquid inlet pipeline fails, the other liquid inlet pipeline is also used for conveying liquid, so that the operation reliability of the cooling and dust-cleaning equipment is improved.
Alternatively, the switching structure 110 is a three-way shut-off valve.
As shown in fig. 1, the cooling dust suppression apparatus further includes a first throttling structure 121 and a second throttling structure 122. Wherein the third liquid inlet pipe 101 is communicated with the first liquid inlet pipe 10 through the first throttling structure 121. The fourth feed pipe 102 communicates with the first feed pipe 10 through a second throttle structure 122. Like this, above-mentioned setting can promote the pressure that gets into to the interior liquid of first feed liquor pipeline 10, increases the velocity of flow of liquid, and then has promoted the velocity of flow of follow mixing arrangement 30 exhaust gas-liquid mixture, and then has promoted the work efficiency of cooling dust suppression equipment, shortens work consuming time.
Optionally, the first and second throttle structures 121, 122 are throttles.
In this embodiment, the cooling dust suppression apparatus is an auxiliary apparatus of the roadway drilling construction apparatus. Taking coal mine equipment as an example, the cooling dust-suppression equipment can replace a waterway system of equipment such as a single-body anchor drilling machine, a single-arm anchor drilling carriage, a multi-arm anchor drilling carriage, a rock drilling carriage and the like. Wherein, the liquid pressure in the first liquid inlet pipeline 10 in the cooling dust suppression equipment is set according to the drilling construction condition and is generally 1.5-2 MPa. The gas pressure in the gas inlet pipe 20 of the cooling and dust-removing device is set according to the drilling construction condition, and is usually 0.6-1.0 MPa.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
in the operation process of the cooling and dust-removing equipment, the control structure is operated so that the control structure is in a first opening state, so that liquid entering from the first liquid inlet pipeline and gas entering from the air inlet pipeline are mixed in the mixing device, and the mixed gas-liquid mixture flows onto the drill bit through the control structure to cool and remove dust of the drill bit, thereby improving the working efficiency and drilling quality of drilling operation of the drill bit and solving the problems of low working efficiency, poor construction quality and poor construction environment of drilling construction operation in the prior art; when the drill bit is not required to be cooled and dust-removed, the control structure is operated so that the control structure is in a closed state, and the gas-liquid mixture mixed in the mixing device cannot flow onto the drill bit.
Compared with two cooling dust suppression methods in the prior art, the cooling dust suppression equipment in the application enables substances flowing to the drill bit to be gas-liquid mixtures, so that the liquid consumption is reduced, and the roadway ponding is avoided. Meanwhile, the cooling dust-removing equipment has a simple structure, is easy to process and realize, and further reduces the processing and maintenance cost.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A cooling dust suppression device, comprising:
a first liquid inlet pipe (10);
an air intake duct (20);
a mixing device (30), wherein the first liquid inlet pipeline (10) and the air inlet pipeline (20) are communicated with the mixing device (30), and liquid entering from the first liquid inlet pipeline (10) and gas entering from the air inlet pipeline (20) are mixed in the mixing device (30);
-a control structure (40) located at a position downstream of the mixing device (30), the control structure (40) having a closed state and a first open state, the mixed gas-liquid mixture being unable to flow onto the drill bit when the control structure (40) is in the closed state; when the control structure (40) is in the first opening state, the mixed gas-liquid mixture flows onto a drill bit through the control structure (40);
the control structure (40) also has a second open state, and the cooling and dust-cleaning apparatus further comprises:
a second liquid inlet pipe (50), when the control structure (40) is in the second open state, liquid entering from the second liquid inlet pipe (50) flows onto the drill bit through the control structure (40) so as to clean the drill bit;
the mixing device (30) comprises:
a body (31) having a cavity (311) and a discharge channel (312) communicating with the cavity (311), wherein the first liquid inlet pipe (10) and the air inlet pipe (20) are both communicated with the cavity (311), and the gas-liquid mixture after mixing in the cavity (311) is discharged out of the body (31) through the discharge channel (312);
wherein, the liquid inlet direction of the first liquid inlet pipeline (10) and the air inlet direction of the air inlet pipeline (20) form an included angle;
the cooling and dust-removing device further comprises an air inlet joint (60) connected with the air inlet pipeline (20), the body (31) is provided with a first mounting channel (313) communicated with the cavity (311), and at least part of the air inlet joint (60) stretches into the first mounting channel (313) and is connected with the first mounting channel (313);
the cooling and dust-removing equipment further comprises a liquid inlet joint connected with the first liquid inlet pipeline (10), the body (31) is provided with a second installation channel (314) communicated with the cavity (311), and at least part of the liquid inlet joint extends into the second installation channel (314) and is clamped or connected with the second installation channel (314) in a threaded manner or connected through a first fastener;
wherein the air inlet (61) of the air inlet joint (60) is arranged close to the discharge channel (312) relative to the liquid inlet of the liquid inlet joint;
the cooling dust suppression equipment also includes:
the connecting piece (70), the connecting piece (70) is connected with one end, far away from the air inlet pipeline (20), of the air inlet connector (60), the air inlet connector (60) is connected with the first mounting channel (313) through the connecting piece (70), the connecting piece (70) is clamped or connected with the first mounting channel (313) in a threaded mode or connected through a second fastening piece, the connecting piece (70) is provided with a liquid passing hole (71), and liquid in the liquid inlet connector is communicated with the cavity (311) through the liquid passing hole (71); wherein the air inlet (61) of the air inlet joint (60) is arranged close to the discharge channel (312) relative to the liquid passing hole (71);
the cooling dust suppression equipment also includes:
a third liquid inlet pipe (101) communicated with the first liquid inlet pipe (10);
a fourth liquid inlet pipe (102) communicated with the first liquid inlet pipe (10);
the switching structure (110) is arranged between the liquid supply device and the third liquid inlet pipeline (101) and the fourth liquid inlet pipeline (102), the switching structure (110) is provided with a first working state and a second working state, and when the switching structure (110) is in the first working state, liquid discharged from the liquid supply device sequentially passes through the switching structure (110), the third liquid inlet pipeline (101) and the first liquid inlet pipeline (10) and then enters the mixing device (30); when the switching structure (110) is in the second working state, the liquid discharged from the liquid supply device sequentially passes through the switching structure (110), the fourth liquid inlet pipeline (102) and the first liquid inlet pipeline (10) and then enters the mixing device (30).
2. The cooling and dust-cleaning apparatus according to claim 1, wherein the connecting member (70) is a cylindrical structure, an axial direction of the cylindrical structure is consistent with an extending direction of the first installation channel (313), a tapered portion of the air inlet joint (60) extends into the cylindrical structure, and the liquid passing hole (71) is formed in a side wall of the cylindrical structure.
3. The cooling dust suppression apparatus according to claim 1, further comprising a plurality of seals (80), at least a portion of the seals (80) being disposed between an outer surface of the connector (70) and an inner wall of the first mounting channel (313), at least a portion of the seals (80) being disposed between an outer surface of the air inlet fitting (60) and an inner wall of the first mounting channel (313).
4. The cooling dust suppression apparatus of claim 1, further comprising:
and the switch structure (90) is arranged on the air inlet pipeline (20), and the switch structure (90) is used for communicating the air inlet pipeline (20) with the mixing device (30) or disconnecting the air inlet pipeline (20) from the mixing device (30).
5. The cooling dust suppression apparatus of claim 4, further comprising:
and a one-way valve (130) arranged between the switch structure (90) and the mixing device (30), wherein the conduction direction of the one-way valve (130) is the direction from the switch structure (90) to the mixing device (30).
6. The cooling dust suppression apparatus of claim 1, further comprising:
-a first throttle structure (121), said third liquid inlet conduit (101) being in communication with said first liquid inlet conduit (10) through said first throttle structure (121);
-a second throttling structure (122), said fourth liquid inlet duct (102) being in communication with said first liquid inlet duct (10) through said second throttling structure (122).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811488165.2A CN111287680B (en) | 2018-12-06 | 2018-12-06 | Cooling dust-removing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811488165.2A CN111287680B (en) | 2018-12-06 | 2018-12-06 | Cooling dust-removing equipment |
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| Publication Number | Publication Date |
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| CN111287680A CN111287680A (en) | 2020-06-16 |
| CN111287680B true CN111287680B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| US5012876A (en) * | 1990-02-01 | 1991-05-07 | Dresser Industries, Inc. | Rotary drill bit providing separation of liquid from gas |
| AU630304B1 (en) * | 1991-07-16 | 1992-10-22 | Kyoritsu Gokin Mfg. Co., Ltd. | Gas-liquid mixture spray nozzle apparatus |
| CN201535142U (en) * | 2009-11-16 | 2010-07-28 | 永贵能源开发有限责任公司 | Device for removing dust and slag in drill hole |
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| CN111287680A (en) | 2020-06-16 |
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Country or region after: China Address after: 065300 Industrial Road 2, Chaobaihe Industrial Zone, Dachang County, Langfang City, Hebei Province Applicant after: Hebei Jinglong Intelligent Equipment Co.,Ltd. Address before: 065300 Industrial Road 2, Chaobaihe Industrial Zone, Dachang County, Langfang City, Hebei Province Applicant before: LANGFANG JINGLONG HEAVY MACHINERY Co.,Ltd. Country or region before: China |
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