CN111287680A - Cooling dust suppression equipment - Google Patents
Cooling dust suppression equipment Download PDFInfo
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- CN111287680A CN111287680A CN201811488165.2A CN201811488165A CN111287680A CN 111287680 A CN111287680 A CN 111287680A CN 201811488165 A CN201811488165 A CN 201811488165A CN 111287680 A CN111287680 A CN 111287680A
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- 239000000428 dust Substances 0.000 title claims abstract description 56
- 230000001629 suppression Effects 0.000 title claims abstract description 49
- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 174
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 27
- 238000005553 drilling Methods 0.000 abstract description 33
- 238000010276 construction Methods 0.000 abstract description 30
- 239000007789 gas Substances 0.000 description 35
- 238000000034 method Methods 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 230000008569 process Effects 0.000 description 13
- 238000009825 accumulation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 208000034423 Delivery Diseases 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007246 mechanism Effects 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
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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- 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 a cooling dust suppression device. The cooling dust suppression equipment includes: a first liquid inlet pipe; an air intake duct; the first liquid inlet pipeline and the gas inlet pipeline are communicated with the mixing device, and liquid entering from the first liquid inlet pipeline and gas entering from the gas inlet pipeline are mixed in the mixing device; the control structure is positioned at the downstream position of the mixing device and has a closed state and a first open state, and when the control structure is in the closed state, the gas-liquid mixture after mixing cannot flow onto the drill bit; when the control structure is in the first opening state, the gas-liquid mixture after mixing flows to 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 suppression equipment.
Background
At present, in tunnel drilling work progress, in order to reduce impurity such as dust that produces among the drilling process, adopt following two kinds of modes to cool down the dust suppression usually: wet drilling and dry drilling (also called negative pressure air draft dust suppression). However, the above two methods have the following problems, respectively:
1. the wet drilling method has the problems of serious roadway water accumulation, difficult operation and the like although the structure is simple and the cost is low;
2. although the dry drilling method has dry working environment and is not easy to accumulate water, the dry drilling method has the problems of large noise pollution, tunnel dust, high maintenance cost and the like.
In conclusion, the two methods cannot meet the drilling construction requirements, the working efficiency and the construction quality of the drilling construction operation are affected, and the construction environment is poor.
Disclosure of Invention
The invention mainly aims to provide cooling dust suppression equipment to solve 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 device, comprising: a first liquid inlet pipe; an air intake duct; the first liquid inlet pipeline and the gas inlet pipeline are communicated with the mixing device, and liquid entering from the first liquid inlet pipeline and gas entering from the gas inlet pipeline are mixed in the mixing device; the control structure is positioned at the downstream position of the mixing device and has a closed state and a first open state, and when the control structure is in the closed state, the gas-liquid mixture after mixing cannot flow onto the drill bit; when the control structure is in the first opening state, the gas-liquid mixture after mixing flows to the drill bit through the control structure.
Further, control structure still has the second and opens the state, and cooling dust suppression equipment still includes: and the second liquid inlet pipeline is in a second opening state when the control structure is in the second opening state, and liquid entering from the second liquid inlet pipeline flows to the drill bit through the control structure so as to clean the drill bit.
Further, the mixing device comprises: the body is provided with a cavity and a discharge channel communicated with the cavity, the first liquid inlet pipeline and the gas inlet pipeline are communicated with the cavity, and a gas-liquid mixture mixed in the cavity is discharged out of the body through the discharge channel; wherein, the feed liquor direction of first feed liquor pipeline and the direction of admitting air of admission line are the contained angle setting.
Furthermore, the cooling dust suppression equipment also 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.
Furthermore, the cooling dust suppression device also comprises a liquid inlet joint 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 joint extends into the second installation channel and is clamped with the second installation channel or in threaded connection or connected through a first fastener; wherein, the air inlet of the air inlet joint is arranged close to the discharge channel relative to the liquid inlet of the liquid inlet 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 joint, the air inlet joint is connected with the first installation channel through the connecting piece, the connecting piece is clamped with the first installation channel or connected with the first installation channel in a threaded mode or connected with the first installation channel through a second fastening piece, the connecting piece is provided with a liquid passing hole, and liquid in the liquid inlet joint is communicated with the cavity through the liquid passing hole; wherein the air inlet of the air inlet joint is arranged close to the discharge channel relative to the liquid passing hole.
Furthermore, 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 extends into the cylindrical structure, and a liquid passing hole is formed in the side wall of the cylindrical structure.
Further, the temperature-reducing dust-suppression equipment also comprises a plurality of sealing pieces, at least part of the sealing pieces are arranged between the outer surface of the connecting piece and the inner wall of the first mounting channel, and at least part of the sealing pieces are arranged between the outer surface of the air inlet joint and the inner wall of the first mounting channel.
Further, the cooling dust suppression equipment still includes: and 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: and the one-way valve is arranged between the switch structure and the mixing device, and the conduction direction of the one-way valve is 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 between the liquid supply device and the fourth liquid inlet pipeline, the switching structure has a first working state and a second working state, and 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 third liquid inlet pipeline is communicated with the first liquid inlet pipeline through the first throttling structure; and the fourth liquid inlet pipeline is 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 dust suppression equipment, the control structure is operated to be in the first opening state, so that liquid entering from the first liquid inlet pipeline and gas entering from the gas inlet pipeline are mixed in the mixing device, and a gas-liquid mixture after the mixing is completed flows onto the drill bit through the control structure to cool and suppress dust for the drill bit, so that the working efficiency and the drilling quality of the drilling operation of the drill bit are improved, and the problems of low working efficiency, poor construction quality and poor construction environment of the drilling construction operation in the prior art are solved; when the drill bit does not need to be cooled and dust-removed, the control structure is operated to enable the control structure to be in a closed state, and then 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 the substances flowing onto the drill bit to be gas-liquid mixtures, so that the liquid consumption is reduced, and roadway water accumulation is avoided. Meanwhile, the cooling dust suppression equipment is simple in structure, easy to process and realize, and further reduces the processing and maintenance cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of the temperature-reducing dust-suppression device according to the present invention; and
fig. 2 shows a cross-sectional view of the mixing device of the temperature-reducing dust-control apparatus in fig. 1.
Wherein the 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 member; 71. a liquid passing hole; 80. a seal member; 90. a switch structure; 101. a third liquid inlet pipeline; 102. a fourth liquid inlet pipeline; 110. a switching structure; 121. a first throttling arrangement; 122. a second throttling arrangement; 130. a one-way valve; 140. a water jacket.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that, unless otherwise indicated, 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.
In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problem that the work efficiency of drilling construction operation among the prior art is low, construction quality is relatively poor and construction environment is poor, this application provides a cooling dust suppression equipment.
As shown in fig. 1, the temperature-reducing and dust-removing apparatus includes a first liquid inlet pipe 10, a gas inlet pipe 20, a mixing device 30, and a control structure 40. Wherein, the first liquid inlet pipeline 10 and the gas inlet pipeline 20 are both communicated with the mixing device 30, and the liquid entering from the first liquid inlet pipeline 10 is mixed with the gas entering from the gas inlet pipeline 20 in the mixing device 30. The control structure 40 is located at a downstream position 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 gas-liquid mixture after completing the mixing can not flow onto the drill bit; when the control structure 40 is in the first open state, the gas-liquid mixture after completing the mixing flows to the drill bit through the control structure 40.
By applying the technical scheme of the embodiment, in the operation process of the cooling dust suppression device, the control structure 40 is operated to enable the control structure 40 to be in the first opening state, so that the liquid entering from the first liquid inlet pipeline 10 and the gas entering from the gas inlet pipeline 20 are mixed in the mixing device 30, and the gas-liquid mixture after being mixed flows onto the drill bit through the control structure 40 to cool and suppress dust for the drill bit, so that the working efficiency and the drilling quality of the drilling operation of the drill bit are improved, and the problems of low working efficiency, poor construction quality and poor construction environment of the drilling construction operation in the prior art are solved; when the temperature reduction and dust suppression of the drill bit are not needed, the control structure 40 is operated to close the control structure 40, and the gas-liquid mixture mixed in the mixing device 30 cannot flow onto the drill bit.
Compared with two cooling dust suppression methods in the prior art, the cooling dust suppression equipment in the embodiment enables substances flowing to the drill bit to be gas-liquid mixtures, so that the liquid consumption is reduced, and water accumulation in a roadway is avoided. Meanwhile, the cooling dust suppression equipment is simple in structure, easy to process and realize, and further reduces the processing and maintenance cost.
In the embodiment, the cooling dust suppression equipment reduces the water consumption by 60-80% and ensures that no water is accumulated on the bottom plate of the roadway. Meanwhile, noise cannot 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 improvement of the drilling construction quality is guaranteed.
In the present embodiment, the gas transported in the intake duct 20 is compressed gas. Optionally, the compressed gas is a mixture of one or more components. Like this, above-mentioned setting guarantees that the gas-liquid mixture of following mixing arrangement 30 output is atomized water, and in tunnel drilling work progress, atomized water can play the effect that reduces drill bit, drilling rod temperature, lubricated drill bit, drilling rod, restrain the dust, the waste residue that the discharge process of creeping into produced.
In this embodiment, the control structure 40 further has a second open state, and the temperature-reducing and dust-removing device 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 temperature-reducing and dust-removing equipment reduces the temperature and removes dust for the drill bit, the control structure 40 is in a first open state; when the drill bit does not need to be cooled and dust-removed, the control structure 40 is in a closed state; when the drill bit is stuck or blocked during the drilling process, the control structure 40 is operated to make the control structure 40 in the second open state, so as to convey the liquid in the second liquid inlet pipeline 50 to the drill bit through the control structure 40 to flush the drill bit.
In this embodiment, the second inlet pipe 50 is filled with high-pressure liquid.
Optionally, the control structure 40 is a three-position, four-way shut-off valve. The three-position four-way stop valve comprises three position functions of a middle locking position (an opening and closing state), a water-gas mixing position (a first opening state) and a high-pressure water level (a second opening state). During normal use, the water level device is switched between two functions of a middle position and a water-gas mixing position, and the high-pressure water level is only used when necessary, such as: when the drill rod drill bit is blocked, the drill rod of the blocked drill bit is washed by high-pressure water.
In this embodiment, the liquid flowing through the first liquid inlet pipe 10 and the second liquid inlet pipe 50 is tap water, and may be various kinds of well water, mine water, emulsion, and 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 passage 312 communicated with the cavity 311, the first liquid inlet pipe 10 and the gas inlet pipe 20 are both communicated with the cavity 311, and the gas-liquid mixture mixed in the cavity 311 is discharged out of the body 31 through the discharge passage 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 intake direction of the first intake duct 10 is arranged perpendicular to the intake direction of the intake duct 20.
Specifically, the liquid entering from the first liquid inlet pipe 10 is mixed with the gas entering from the gas inlet pipe 20 in the cavity 311, the gas-liquid mixture after mixing is discharged from the discharge passage 312, and when the control structure 40 is in the first opening 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. Wherein, the feed liquor direction of first inlet conduit 10 sets up perpendicularly with inlet duct 20's the direction of admitting air, and then guarantees that the two can carry gas or liquid simultaneously, and then realizes the flash mixed of gas-liquid, promotes mixing arrangement 30's work efficiency.
In the embodiment, the size of the mixing device 30 is set according to the construction condition of the temperature-reducing and dust-removing equipment.
As shown in fig. 2, the temperature-reducing dust-removing device further includes an air inlet joint 60 connected to the air inlet duct 20, the body 31 has a first installation channel 313 communicated with the cavity 311, and at least a portion of the air inlet joint 60 extends into the first installation channel 313 and is connected to the first installation channel 313. In this way, the air intake duct 20 is connected to the main body 31 through the air intake joint 60, and the air intake duct 20 and the main body 31 can be easily and simply attached and detached.
Specifically, one end of the air inlet duct 20 is connected to an air supply device, the other end of the air inlet duct 20 is connected to the air inlet joint 60, and the air in the air supply device enters the cavity 311 through the air inlet duct 20 and the air inlet joint 60 in sequence.
As shown in fig. 2, the temperature-reducing dust-extinguishing apparatus further includes a liquid inlet joint connected to the first liquid inlet pipe 10, the body 31 has a second installation channel 314 communicated with the cavity 311, and at least a portion of the liquid inlet joint extends into the second installation channel 314 and is in threaded connection with the second installation channel 314. Wherein the air inlet 61 of the inlet fitting 60 is located adjacent the discharge passage 312 relative to the inlet of the inlet fitting. Thus, under the condition that the air inlet pipeline 20 and the first liquid inlet pipeline 10 are simultaneously conveyed, the arrangement ensures that gas enters the cavity 311 earlier than liquid, so that the gas drives the liquid to move, and the normal operation of the cooling dust suppression equipment is ensured. Meanwhile, the liquid inlet connector and the second mounting channel 314 are connected in a manner that the liquid inlet connector and the second mounting channel are easier and simpler to disassemble and assemble, and the labor intensity of workers is reduced.
Specifically, first inlet pipe 10 passes through the liquid inlet joint and is connected with body 31, and then makes the dismouting of first inlet pipe 10 and body 31 easier, simple and convenient, has reduced staff's intensity of labour.
It should be noted that the connection manner of the inlet joint and the second mounting passage 314 is not limited to this. Alternatively, the inlet fitting may snap into the second mounting channel 314 or be connected by a first fastener.
In this embodiment, the discharge channel 312 is parallel to the first installation channel 313, the first installation channel 313 is perpendicular to the second installation channel 314, and a cavity 311 is formed at the connection position of the discharge channel 312 and the second installation channel 313, so as to achieve the purpose of driving the liquid to flow by the gas.
As shown in fig. 2, the temperature-reducing and dust-removing device further comprises a connector 70. The connecting piece 70 is connected with one end of the air inlet joint 60 far away from the air inlet pipeline 20, the air inlet joint 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 joint is communicated with the cavity 311 through the liquid passing hole 71. Wherein the intake port 61 of the intake joint 60 is disposed close to the discharge passage 312 with respect to the liquid passing hole 71. Thus, the connecting manner of the connecting piece 70 and the first mounting channel 313 enables the connecting piece and the first mounting channel to be more easily and conveniently assembled and disassembled, and reduces the labor intensity of workers.
Specifically, the connecting piece 70 is used for connecting the air inlet joint 60 with the first mounting channel 313 on one hand, and is used for guiding the liquid discharged from the liquid inlet joint 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 flowing of the gas in the air inlet joint 60 and the liquid in the liquid inlet joint in the mixing process, and ensure the continuity of the mixing.
It should be noted that the connection manner of the connection member 70 and the first mounting channel 313 is not limited to this. Alternatively, the connector 70 is threaded with the first mounting channel 313 or is connected by a second fastener.
In this embodiment, the air inlet connector 60 is clamped with the connector 70, the portion of the air inlet connector 60 away from the discharge passage 312 is in threaded connection with the first mounting passage 313, and the connector 70 is clamped with the first mounting passage 313, so that the connection among the air inlet connector 60, the connector 70 and the first mounting passage 313 (the body 31) is more stable, and the structural stability of the mixing device 30 is improved.
As shown in fig. 2, the connecting member 70 has a cylindrical structure, the axial direction of the cylindrical structure coincides with the extending direction of the first mounting passage 313, the tapered portion of the intake joint 60 extends into the cylindrical structure, and the side wall of the cylindrical structure has a liquid passing hole 71. Specifically, the liquid passing hole 71 is disposed away from the discharge passage 312 with respect to the tapered portion of the intake joint 60. The structure is simple, and easy to process and realize.
Optionally, the liquid passing hole 71 is multiple, and the multiple liquid passing holes 71 are arranged at intervals along the circumferential direction and/or the axial direction of the cylindrical structure.
Optionally, the temperature-reducing dust-suppression device further comprises a plurality of seals 80, at least a part of the seals 80 are arranged between the outer surface of the connecting piece 70 and the inner wall of the first mounting channel 313, and at least a part of the seals 80 are arranged between the outer surface of the air inlet joint 60 and the inner wall of the first mounting channel 313. Therefore, the sealing element 80 can improve the air tightness of the mixing device 30, and prevent the normal operation of the cooling dust suppression device from being influenced by the leakage of gas or liquid in the mixing device 30.
As shown in fig. 1, the temperature-reducing and dust-removing device further includes a switch structure 90. Wherein a switch structure 90 is provided on the intake duct 20, the switch structure 90 being used to connect the intake duct 20 with the mixing device 30 or disconnect the intake duct 20 from the mixing device 30. Optionally, the switch structure 90 is a shut-off valve. Specifically, when the drill bit is required to be cooled and dust-removed by the cooling and dust-removing equipment, the switch structure 90 is operated to enable the switch structure 90 to be in an open state, so as to communicate the air inlet pipeline 20 with the mixing device 30; when the drill bit is not required to be cooled and dusted by the cooling and dustproofing device, the switch structure 90 is operated to make the switch structure 90 in a closed state, so as to disconnect the communication between the air inlet pipeline 20 and the mixing device 30.
As shown in fig. 1, the temperature-reducing and dust-removing device further includes a check valve 130. The check valve 130 is disposed between the switch structure 90 and the mixing device 30, and the conduction direction of the check valve 130 is 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 delivery of the gas, and ensures the fluency of the gas flow.
As shown in fig. 1, the temperature-reducing dust-extinguishing apparatus further includes a third liquid inlet pipe 101, a fourth liquid inlet pipe 102 and a switching structure 110. Wherein, the third inlet pipe 101 is communicated with the first 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 pipeline 102 and the first liquid inlet pipeline 10 and then enters the mixing device 30. Like this, through third inlet pipe 101 and fourth inlet pipe 102 transport liquid, even one of them inlet pipe breaks down, also can be through another inlet pipe transport liquid, and then has promoted the operational reliability of cooling dust suppression equipment.
Optionally, the switching mechanism 110 is a three-way shut-off valve.
As shown in fig. 1, the temperature-reducing dust-removing device further includes a first throttling structure 121 and a second throttling structure 122. Wherein, the third inlet pipe 101 is communicated with the first inlet pipe 10 through the first throttling structure 121. The fourth inlet conduit 102 communicates with the first inlet conduit 10 via a second throttling arrangement 122. Like this, above-mentioned setting can promote the pressure that enters into to first inlet channel 10 interior liquid, and the velocity of flow of increase liquid, and then has promoted the velocity of flow from the 30 combustion gas liquid mixtures of mixing arrangement, and then has promoted the work efficiency of cooling dust suppression equipment, and it is consuming time to shorten work.
Optionally, the first and second throttling structures 121, 122 are throttling valves.
In this embodiment, the cooling dust suppression equipment is the auxiliary assembly of tunnel drilling construction equipment. Taking coal mine equipment as an example, the cooling dust suppression equipment can replace waterway systems of single anchor rod drilling machines, single-arm anchor rod drill carriages, multi-arm anchor rod drill carriages, drill jumbo trucks and other equipment. 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 usually 1.5-2 MPa. The gas pressure in the gas inlet pipeline 20 in the temperature reduction and dust suppression equipment 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-described embodiments of the present invention achieve the following technical effects:
in the operation process of the cooling dust suppression equipment, the control structure is operated to be in a first opening state, so that liquid entering from the first liquid inlet pipeline and gas entering from the gas inlet pipeline are mixed in the mixing device, and a gas-liquid mixture after mixing flows onto the drill bit through the control structure to cool and suppress dust for the drill bit, so that the working efficiency and the drilling quality of the drilling operation of the drill bit are improved, and the problems of low working efficiency, poor construction quality and poor construction environment of the drilling construction operation in the prior art are solved; when the drill bit does not need to be cooled and dust-removed, the control structure is operated to enable the control structure to be in a closed state, and then 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 the substances flowing onto the drill bit to be gas-liquid mixtures, so that the liquid consumption is reduced, and roadway water accumulation is avoided. Meanwhile, the cooling dust suppression equipment is simple in structure, easy to process and realize, and further reduces the processing and maintenance cost.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection 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 according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of 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 this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. The utility model provides a cooling dust suppression equipment which characterized in that includes:
a first inlet conduit (10);
an air intake duct (20);
a mixing device (30), wherein the first liquid inlet pipeline (10) and the gas inlet pipeline (20) are communicated with the mixing device (30), and liquid entering from the first liquid inlet pipeline (10) is mixed with gas entering from the gas inlet pipeline (20) in the mixing device (30);
a control structure (40) located at a downstream position of the mixing device (30), the control structure (40) having a closed state and a first open state, when the control structure (40) is in the closed state, the gas-liquid mixture after completion of mixing is unable to flow onto the drill bit; when the control structure (40) is in the first open state, the gas-liquid mixture after completing mixing flows to a drill bit through the control structure (40).
2. A temperature-reducing dust-extinguishing apparatus according to claim 1, wherein the control structure (40) further has a second open state, the temperature-reducing dust-extinguishing apparatus further comprising:
a second inlet conduit (50) through which liquid from the second inlet conduit (50) flows onto the drill bit when the control structure (40) is in the second open state to clear the drill bit.
3. A temperature-reducing dust-extinguishing apparatus according to claim 1, characterized in that the mixing device (30) comprises:
the body (31) is provided with a cavity (311) and a discharge passage (312) communicated with the cavity (311), the first liquid inlet pipeline (10) and the gas inlet pipeline (20) are 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 passage (312);
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.
4. The temperature-reducing dust suppression device according to claim 3, further comprising an air inlet joint (60) connected with the air inlet pipeline (20), wherein the body (31) is provided with a first installation channel (313) communicated with the cavity (311), and at least part of the air inlet joint (60) extends into the first installation channel (313) and is connected with the first installation channel (313).
5. The temperature-reducing dust suppression device according to claim 4, further comprising a liquid inlet joint connected with the first liquid inlet pipeline (10), wherein 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 screwed with the second installation channel (314) or is connected with the second installation channel (314) through a first fastener;
wherein the air inlet (61) of the air inlet connection (60) is arranged close to the discharge channel (312) with respect to the inlet of the inlet connection.
6. The cooling dust suppression apparatus according to claim 5, further comprising:
the connecting piece (70) is connected with one end, far away from the air inlet pipeline (20), of the air inlet joint (60), the air inlet joint (60) is connected with the first mounting channel (313) through the connecting piece (70), the connecting piece (70) is connected with the first mounting channel (313) in a clamping or threaded manner or through a second fastening piece, the connecting piece (70) is provided with a liquid passing hole (71), and liquid in the liquid inlet joint 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 through hole (71).
7. The temperature-reducing dust-suppression device according to claim 6, wherein the connecting piece (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 joint (60) extends into the cylindrical structure, and the side wall of the cylindrical structure is provided with the liquid passing hole (71).
8. The temperature-reducing dust-suppression apparatus according to claim 6, further comprising a plurality of seals (80), wherein at least a portion of the seals (80) are disposed between an outer surface of the connector (70) and an inner wall of the first mounting passage (313), and at least a portion of the seals (80) are disposed between an outer surface of the air inlet joint (60) and an inner wall of the first mounting passage (313).
9. The cooling dust suppression apparatus according to claim 1, further comprising:
a switch arrangement (90) provided on the intake duct (20), the switch arrangement (90) being for communicating the intake duct (20) with the mixing device (30) or disconnecting the intake duct (20) from the mixing device (30).
10. The cooling dust suppression apparatus according to claim 9, further comprising:
and the one-way valve (130) is arranged between the switch structure (90) and the mixing device (30), and the conduction direction of the one-way valve (130) is the direction from the switch structure (90) to the mixing device (30).
11. The cooling dust suppression apparatus according to claim 1, further comprising:
a third inlet pipe (101) communicating with the first inlet pipe (10);
a fourth inlet conduit (102) communicating with said first inlet conduit (10);
the switching structure (110), 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, liquid discharged from the liquid supply device sequentially enters the mixing device (30) after passing through the switching structure (110), the fourth liquid inlet pipeline (102) and the first liquid inlet pipeline (10).
12. The cooling dust suppression apparatus according to claim 11, further comprising:
a first throttling structure (121), said third intake conduit (101) communicating with said first intake conduit (10) through said first throttling structure (121);
a second throttling arrangement (122), said fourth inlet conduit (102) communicating with said first inlet conduit (10) through said second throttling arrangement (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811488165.2A CN111287680B (en) | 2018-12-06 | 2018-12-06 | Cooling dust-removing equipment |
Applications Claiming Priority (1)
| 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 true CN111287680A (en) | 2020-06-16 |
| CN111287680B CN111287680B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811488165.2A Active CN111287680B (en) | 2018-12-06 | 2018-12-06 | Cooling dust-removing equipment |
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| CN103883274A (en) * | 2014-04-18 | 2014-06-25 | 王海峰 | Cooling and dust suppression device in mine drilled hole |
| CN209324291U (en) * | 2018-12-06 | 2019-08-30 | 廊坊景隆重工机械有限公司 | Cool down dirt equipment of going out |
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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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| CN111287680B (en) | 2024-04-12 |
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