CN111720158B - Foam dust removal equipment for coal mine - Google Patents
Foam dust removal equipment for coal mine Download PDFInfo
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- CN111720158B CN111720158B CN202010764257.XA CN202010764257A CN111720158B CN 111720158 B CN111720158 B CN 111720158B CN 202010764257 A CN202010764257 A CN 202010764257A CN 111720158 B CN111720158 B CN 111720158B
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- mixed flow
- guide pipe
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- 239000006260 foam Substances 0.000 title claims abstract description 92
- 239000000428 dust Substances 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 title claims abstract description 20
- 238000005187 foaming Methods 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000004088 foaming agent Substances 0.000 claims abstract description 24
- 238000009826 distribution Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 8
- 230000009471 action Effects 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/06—Fluids used for spraying
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Nozzles (AREA)
Abstract
The invention relates to the field of coal mine dust removal equipment, and discloses foam dust removal equipment for a coal mine, which comprises an engine body, a mixed flow pipe and a foam nozzle, wherein the mixed flow pipe is fixedly arranged at the top of the engine body, a foaming liquid guide pipe is communicated between the mixed flow pipe and the foam nozzle, a foaming agent box is fixedly arranged at the top of the mixed flow pipe, a guide pipe is fixedly sleeved at the bottom of the foaming agent box and the top of the mixed flow pipe, a foaming agent is added into the foaming agent box, and a water pump positioned on one side of the mixed flow pipe is fixedly arranged at the top of the engine body. This foam dust collecting equipment for coal mine, structural design through annular sleeve pipe and annular guide plate in the foam spray tube for the air current drives the relative annular sleeve pipe of guide plate and rotates, through water conservancy diversion mouth, water conservancy diversion hole remain throughout and communicate with each other, the state stifled mutually, and the air current is in the continuous state all the time, ensures that the air current can fully act on the foaming and mixes the liquid, makes the foam efficiency that the foaming mixed liquid generated obtain effectively improving.
Description
Technical Field
The invention relates to the field of coal mine dust removal equipment, in particular to foam dust removal equipment for a coal mine.
Background
The foam dust removal equipment for the coal mine is equipment for effectively treating dust in places such as a mine excavation working face, a tunneling tunnel and the like, and effectively reduces the dust concentration on the excavation face, greatly improves the working environment of the excavation working face, improves the working efficiency of underground operators, effectively reduces the incidence rate of pneumoconiosis of workers at the first mining line and performs adsorption treatment on the dust in the places such as the mine excavation working face, the tunneling tunnel and the like by mixing a foaming agent with water and air and utilizing foam sprayed by a foam nozzle to cover, moisten, adhere and the like to act on the dust.
Then, among the current bubble membrane dust collecting equipment, the foam nozzle has utilized the venturi principle, the circulation diameter diminishes in the foam nozzle is mixed in the foaming, the velocity of flow increases, form the negative pressure in the pipeline, adsorb into the air, produce the foam and spout under the mixed liquid velocity of flow of foaming with the air contact, this makes the air that acts on the mixed liquid of foaming not enough easily, lead to the mixed liquid of foaming and the air action inequality, make the foam production rate lower, and then make dust collection efficiency reduce, and utilize the quick blowout foam of the jet of the mixed liquid of foaming, when the mixed liquid jet velocity of foaming is very fast, with the air contact inequality, influence foam production efficiency, when the mixed liquid velocity of flow of foaming is very slow, the jet distance of foam is nearer.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides the foam dust removal equipment for the coal mine, which has the advantages of high foam generation rate and no limitation of foam injection distance by the foam generation rate, and solves the problems in the background technology.
The invention provides the following technical scheme: a foam dedusting device for a coal mine comprises a machine body, a mixed flow pipe and a foam nozzle, wherein the mixed flow pipe is fixedly installed at the top of the machine body, a foaming liquid guide pipe is communicated between the mixed flow pipe and the foam nozzle, a foaming agent box is fixedly installed at the top of the mixed flow pipe, a guide pipe is fixedly sleeved at the bottom of the foaming agent box and the top of the mixed flow pipe, a foaming agent is added into the foaming agent box, a water pump located on one side of the mixed flow pipe is fixedly installed at the top of the machine body, a water guide pipe is communicated between the water pump and the mixed flow pipe, and a high-pressure fan is fixedly installed in the middle of the front face of the machine body; the foam sprayer comprises a foam sprayer body, a high-pressure fan, a guide pipe, an air flow distribution box, a support sleeve, a communication pipe and a rotary shaft, wherein the guide pipe is connected to the side face of the foam sprayer body in a flange mode, the air flow distribution box is connected to the side face of the guide pipe in a sealing mode, an air guide pipe is communicated between the side face of the air flow distribution box and the high-pressure fan, the support sleeve is fixedly connected to the middle of the other side of the air flow distribution box, a plurality of through holes facing the guide pipe are formed in the side face of the air flow distribution box, the through holes are located on the outer edge of the support sleeve, an annular sleeve pipe located on one side of the guide pipe is fixedly sleeved inside the foam sprayer body, a certain distance is reserved between the outer edge of the annular sleeve pipe and the inner wall of the foam sprayer body, a communication pipe located at the annular sleeve pipe is arranged on the foam sprayer body, the communication pipe is communicated with one end of the rotary shaft, two sides of the annular sleeve pipe are respectively attached to the side face of the guide pipe and one side wall of the inner cavity of the foam sprayer body, and twelve guide ports are arranged at equal distances are formed on the outer side of the annular sleeve pipe, annular sleeve's inside movable sleeve is equipped with annular guide plate, annular guide plate's outer edge and the laminating of annular sleeve's inner wall, and the both sides of annular guide plate and the laminating of the both sides wall of annular sleeve inner chamber, the outer edge of annular guide plate sets up the water conservancy diversion hole that twelve equidistance were arranged, the locating lever of four symmetric distributions of inner ring fixedly connected with of annular guide plate, and the one end fixedly connected with of four locating levers is located the universal driving shaft at annular guide plate middle part, the side fixedly connected with of universal driving shaft is located the sleeve pipe in the water conservancy diversion, the threaded rod has been cup jointed to sheathed tube side screw thread, the threaded rod is kept away from sheathed tube one end and is cup jointed with the side activity of supporting the cover, fixed cover is equipped with the turbofan that is close to supporting cover one side on the threaded rod.
Preferably, the side wall of the mixed flow pipe inner cavity is movably sleeved with a rotating shaft, the rotating shaft is fixedly sleeved with a helical blade, and the outer edge of the helical blade is attached to the inner wall of the mixed flow pipe.
Preferably, the foaming liquid guide pipe, the material guide pipe and the air guide pipe are fixedly sleeved with a flow regulating valve, and the rotating shaft and the air guide pipe are made of corrosion-resistant soft pipes.
Preferably, annular sleeve's both sides with all be equipped with a whole circle sealing ring, and two sealing rings laminate with the side of honeycomb duct and the inner wall of foam nozzle one side respectively, the outer fixed cover in edge of annular guide plate is equipped with the sealing washer that is located water conservancy diversion hole both sides, and the laminating of sealing washer and annular sleeve's interior edge.
Preferably, the diameter of the diversion hole is uniformly reduced from outside to inside, and the diameter value of the outer side of the diversion hole is half of the diameter value of the diversion port.
The invention has the following beneficial effects:
the foam dust removing equipment for the coal mine has the advantages that through the structural design of the annular sleeve and the annular guide plate in the foam spray pipe, so that the air flow drives the guide plate to rotate relative to the annular sleeve, when the guide hole corresponds to the guide opening, the foaming liquid mixed liquid flows through the guide opening and the guide hole, fully mixed with transverse air flow to generate foam, sprayed out from one side of a foam spray head under the action of subsequent air flow, dedusted by the sprayed foam, and always kept in a communicated and blocked state through a flow guide port and a flow guide hole, the air flow is always in a continuous state, so that the air flow can fully act on the foaming mixed liquid, the foam efficiency generated by the foaming mixed liquid is effectively improved, and compared with the existing mode of generating foam by spraying and contacting air by using the foaming mixed liquid, the waste of the foaming mixed liquid is avoided, and the utilization efficiency of the foaming mixed liquid is improved; and the generated foam is blown by the airflow, so that the foam can be sprayed farther, and an operator can spray the foam to remove dust in a farther area conveniently, thereby improving the dust removal efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the foam nozzle of the FIG. 1 construction of the present invention;
FIG. 3 is a front view of the annular sleeve of the construction of FIG. 2 in accordance with the present invention;
FIG. 4 is a side view of the annular sleeve of the construction of FIG. 3 in accordance with the present invention;
fig. 5 is a side view of the annular baffle of the fig. 2 construction of the present invention.
In the figure: 1. a body; 2. a mixed flow tube; 201. a rotating shaft; 202. a helical blade; 203. a foaming liquid conduit; 3. a foam nozzle; 301. a communicating pipe; 4. a foaming agent tank; 401. a material guide pipe; 5. a water pump; 6. a high pressure fan; 601. an air guide pipe; 7. a flow guide pipe; 8. an annular sleeve; 801. a flow guide port; 9. an annular baffle; 901. a flow guide hole; 10. positioning a rod; 11. a linkage shaft; 111. a sleeve; 12. an airflow distribution box; 121. a support sleeve; 122. a threaded rod; 123. a turbo fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-5, a foam dust removing device for coal mines comprises a machine body 1, a mixed flow pipe 2 and a foam nozzle 3, wherein the mixed flow pipe 2 is fixedly installed at the top of the machine body 1, a foaming liquid guide pipe 203 is communicated between the mixed flow pipe 2 and the foam nozzle 3, a foaming agent box 4 is fixedly installed at the top of the mixed flow pipe 2, a guide pipe 401 is fixedly sleeved at the bottom of the foaming agent box 4 and the top of the mixed flow pipe 2, a foaming agent is added into the foaming agent box 4, a water pump 5 positioned at one side of the mixed flow pipe 2 is fixedly installed at the top of the machine body 1, a water guide pipe is communicated between the water pump 5 and the mixed flow pipe 2, and a high-pressure fan 6 is fixedly installed at the middle part of the front surface of the machine body 1; the side of the foam nozzle 3 is connected with a flow guide pipe 7 by a flange, the side of the flow guide pipe 7 is connected with an air flow distribution box 12 in a sealing manner, an air guide pipe 601 is communicated between the side of the air flow distribution box 12 and the high pressure fan 6, the middle part of the other side of the air flow distribution box 12 is fixedly connected with a support sleeve 121, the side of the air flow distribution box 12 is provided with a plurality of through holes facing the interior of the flow guide pipe 7, the through holes are positioned at the outer edge of the support sleeve 121, an annular sleeve 8 positioned at one side of the flow guide pipe 7 is fixedly sleeved inside the foam nozzle 3, a certain distance is reserved between the outer edge of the annular sleeve 8 and the inner wall of the foam nozzle 3, the foam nozzle 3 is provided with a communicating pipe 301 positioned at the annular sleeve 8, the communicating pipe 301 is communicated with one end of a rotating shaft 201, two sides of the annular sleeve 8 are respectively attached to one side wall of the inner cavity of the flow guide pipe 7 and one side wall of the inner cavity of the foam nozzle 3, the outer side of the annular sleeve 8 is provided with twelve flow guide ports 801 which are arranged at equal intervals, an annular guide plate 9 is movably sleeved in the annular sleeve 8, the outer edge of the annular guide plate 9 is attached to the inner wall of the annular sleeve 8, two sides of the annular guide plate 9 are attached to two side walls of the inner cavity of the annular sleeve 8, twelve guide holes 901 which are arranged at equal intervals are formed in the outer edge of the annular guide plate 9, four positioning rods 10 which are symmetrically distributed are fixedly connected to the inner ring of the annular guide plate 9, one ends of the four positioning rods 10 are fixedly connected with a linkage shaft 11 which is positioned in the middle of the annular guide plate 9, the side face of the linkage shaft 11 is fixedly connected with a sleeve 111 which is positioned in a guide pipe 7, a threaded rod 122 is sleeved on the side face of the sleeve 111, one end, away from the sleeve 111, of the threaded rod 122 is movably sleeved with the side face of a support sleeve 121, a turbine fan 123 which is close to one side of the support sleeve 121 is fixedly sleeved on the threaded rod 122, a foaming agent flows into a mixed flow pipe 2 through a guide pipe 401, and water is conveyed into the mixed flow pipe 2 through a water pump 5, water and foaming agent are mixed in the mixing pipe 2, the mixed foaming mixed liquid flows into an annular chamber between the foam nozzle 3 and the annular sleeve 8 through the foaming liquid guide pipe 203, meanwhile, the pneumatic high-pressure fan 6 conveys high-pressure air flow into the air flow distribution box 12, the air flow uniformly flows into the guide pipe 7 through the air flow distribution box 12, the air flow pushes the turbine fan 123 to rotate, so that the threaded rod 122, the linkage shaft 11, the positioning rod 10 and the annular guide plate 9 integrally rotate, namely the annular guide plate 9 rotates relative to the annular sleeve 8, when the guide hole 901 corresponds to the guide opening 801, the foaming liquid mixed liquid flows through the guide opening 801 and the guide hole 901 and is fully mixed with transverse air flow to generate foam, and the foam is sprayed out from one side of the foam nozzle 3 under the action of subsequent air flow, and dust is removed by using the sprayed foam, wherein the guide opening 801 and the guide hole 901 are always kept communicated, Stifled state mutually, and the air current is in the continuous state all the time, ensure that the air current can the full action mix the liquid in the foaming, make the foam efficiency that the mixed liquid in the foaming generated effectively improve, compare in the current mode that utilizes the mixed liquid in the foaming to spray contact air and produce the foam, the waste of the mixed liquid in the foaming has been avoided, improve the utilization efficiency of the mixed liquid in the foaming, and the air current blows the foam that generates, it is farther to be favorable to the foam to spray, make things convenient for operating personnel to spray the foam to the region farther and remove dust, thereby the efficiency of removing dust has been improved.
Wherein, the lateral wall movable sleeve of 2 inner chambers of mixed flow pipe is equipped with rotation axis 201, and fixed cover is equipped with helical blade 202 on the rotation axis 201, and helical blade 202 outer edge and mixed flow pipe 2's inner wall laminating are injected water into through water pump 5 in to mixed flow pipe 2, under the water pressure effect for helical blade 202 is rotatory, makes rivers and the interior foamer intensive mixing of inflow of passage 401, thereby improves follow-up foaming quality, and then improves the effect that the foam removed dust.
Wherein, foaming liquid pipe 203, passage 401, all fixed cover is equipped with flow control valve on the guide duct 601, be convenient for control the foamer, the air, the flow of foaming mixed liquid, thereby produce the foam according to the concrete environment in coal mine district, and the material of rotation axis 201 and guide duct 601 is corrosion-resistant hose, make operating personnel can control the mobilizable scope improvement of foam nozzle 3, be convenient for carry out foam dust removal work everywhere to the coal mine district, the internal corrosivity of rotation axis 201 and guide duct 601 has ensured simultaneously and can be under the coal mine environment, long-term effectual transport effect that plays.
Wherein, the both sides of ring casing 8 with all be equipped with a whole circle sealing ring, and two sealing rings laminate with the side of honeycomb duct 7 and the inner wall of foam nozzle 3 one side respectively, the leakproofness of foam nozzle 3 inner chamber and ring casing 8 outer edge department annular space has been ensured, guarantee that the foaming mixed liquid in this region can not reveal, stable water conservancy diversion mouth 801 and water conservancy diversion hole 901 of passing through, with the air current effect in the honeycomb duct 7, foam and spray, utilize the foam to realize dust fall work, the outer edge fixed cover of ring guide plate 9 is equipped with the sealing washer that is located water conservancy diversion hole 901 both sides, and the laminating of sealing washer and ring casing 8's interior edge, make the leakproofness at ring casing 8 and ring guide plate 9 laminating position keep better state, ensure that the foaming mixed liquid only passes through water conservancy diversion hole 901.
The diameter of the flow guide hole 901 is uniformly reduced from outside to inside, and the diameter value of the outer side of the flow guide hole 901 is half of the diameter value of the flow guide port 801, so that the flow speed of the foaming mixed liquid passing through the flow guide hole 901 is increased, the better air flow which is blown transversely fully acts, and the foaming effect is improved.
When the device is used, firstly, a foaming agent is added into a foaming agent box 4, a flow regulating valve on a flow guide pipe 401 is opened, a water pump 5 is started to convey water into a mixed flow pipe 2, a water group is used for a helical blade 202 to be mixed with the foaming agent in the mixed flow pipe 2, the mixed foaming mixed liquid flows into an annular chamber between a foam nozzle 3 and an annular sleeve 8 through a foaming liquid guide pipe 203, a high-pressure fan is started to convey air flow into an air flow distribution box 12, the air flows into a flow guide pipe 7 through the air flow distribution box 12 and acts on a turbine fan 123, so that the turbine fan 123 drives a threaded rod 122, a linkage shaft 11, a positioning rod 10 and an annular guide plate 9 to integrally rotate, namely the annular guide plate 9 rotates relative to the annular sleeve 8, when a flow guide hole 901 corresponds to the flow guide hole 801, the foaming liquid mixed liquid flows through the flow guide hole 801 and the flow guide hole 901 to be fully mixed with transverse air flow to generate foam, and is sprayed out from one side of the foam nozzle 3 under the action of subsequent continuous air flow, and the sprayed foam is used for dedusting.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a foam dust collecting equipment for coal mine, includes organism (1), mixed flow pipe (2), foam shower nozzle (3), its characterized in that: the foaming agent mixer is characterized in that the mixed flow pipe (2) is fixedly installed at the top of the machine body (1), a foaming liquid guide pipe (203) is communicated between the mixed flow pipe (2) and the foam nozzle (3), a foaming agent box (4) is fixedly installed at the top of the mixed flow pipe (2), a material guide pipe (401) is fixedly sleeved between the bottom of the foaming agent box (4) and the top of the mixed flow pipe (2), a foaming agent is added into the foaming agent box (4), a water pump (5) located on one side of the mixed flow pipe (2) is fixedly installed at the top of the machine body (1), a water guide pipe is communicated between the water pump (5) and the mixed flow pipe (2), and a high-pressure fan (6) is fixedly installed in the middle of the front of the machine body (1); the foam sprayer is characterized in that a guide pipe (7) is connected to the side face of the foam sprayer (3) in a flange mode, an air flow distribution box (12) is connected to the side face of the guide pipe (7) in a sealing mode, an air guide pipe (601) is communicated between the side face of the air flow distribution box (12) and the high-pressure fan (6), a support sleeve (121) is fixedly connected to the middle of the other side of the air flow distribution box (12), a plurality of through holes facing the interior of the guide pipe (7) are formed in the side face of the air flow distribution box (12) and located on the outer edge of the support sleeve (121), an annular sleeve (8) located on one side of the guide pipe (7) is fixedly sleeved inside the foam sprayer (3), a certain distance is reserved between the outer edge of the annular sleeve (8) and the inner wall of the foam sprayer (3), a communicating pipe (301) located at the annular sleeve (8) is arranged on the foam sprayer (3), and the foam sprayer (301) is communicated with one end of a foaming liquid guide pipe (203), and the two sides of the annular sleeve (8) are respectively attached to the side surface of the guide pipe (7) and one side wall of the inner cavity of the foam nozzle (3), twelve guide ports (801) arranged at equal intervals are formed in the outer side of the annular sleeve (8), the annular guide plate (9) is movably sleeved in the annular sleeve (8), the outer edge of the annular guide plate (9) is attached to the inner wall of the annular sleeve (8), the two sides of the annular guide plate (9) are attached to the two side walls of the inner cavity of the annular sleeve (8), twelve guide holes (901) arranged at equal intervals are formed in the outer edge of the annular guide plate (9), the inner ring of the annular guide plate (9) is fixedly connected with four symmetrically distributed positioning rods (10), one end of each positioning rod (10) is fixedly connected with a linkage shaft (11) positioned in the middle of the annular guide plate (9), and the side surface of the linkage shaft (11) is fixedly connected with a sleeve (111) positioned in the guide pipe (7), threaded rod (122) has been cup jointed to the side screw thread of sleeve pipe (111), the one end that sleeve pipe (111) were kept away from in threaded rod (122) is cup jointed with the side activity of supporting cover (121), fixed cover is equipped with turbofan (123) that are close to supporting cover (121) one side on threaded rod (122).
2. The foam dedusting apparatus for coal mines as set forth in claim 1, wherein: the side wall activity cover of mixed flow pipe (2) inner chamber is equipped with rotation axis (201), fixed cover is equipped with helical blade (202) on rotation axis (201), the outer edge of helical blade (202) is laminated with the inner wall of mixed flow pipe (2).
3. The foam dedusting apparatus for coal mines as set forth in claim 1, wherein: flow regulating valves are fixedly sleeved on the foaming liquid guide pipe (203), the material guide pipe (401) and the air guide pipe (601), and the air guide pipe (601) is made of a corrosion-resistant hose.
4. The foam dedusting apparatus for coal mines as set forth in claim 1, wherein: the utility model discloses a foam nozzle, including annular casing (8), the both sides of annular casing (8) all are equipped with a whole circle sealing ring, and two sealing rings respectively with the side of honeycomb duct (7) and the inner wall laminating of foam nozzle (3) one side, the outer fixed cover in edge of annular guide plate (9) is equipped with the sealing washer that is located water conservancy diversion hole (901) both sides, and the interior edge laminating of sealing washer and annular casing (8).
5. The foam dedusting apparatus for coal mines as set forth in claim 1, wherein: the diameter of the diversion hole (901) is uniformly reduced from outside to inside, and the diameter value of the outer side of the diversion hole (901) is half of that of the diversion port (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010764257.XA CN111720158B (en) | 2020-08-02 | 2020-08-02 | Foam dust removal equipment for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010764257.XA CN111720158B (en) | 2020-08-02 | 2020-08-02 | Foam dust removal equipment for coal mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111720158A CN111720158A (en) | 2020-09-29 |
| CN111720158B true CN111720158B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010764257.XA Active CN111720158B (en) | 2020-08-02 | 2020-08-02 | Foam dust removal equipment for coal mine |
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| CN112546772B (en) * | 2020-11-27 | 2022-07-08 | 西南科技大学 | Dust removal bubble generator and dust removal method thereof |
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| CN203730052U (en) * | 2014-02-11 | 2014-07-23 | 安徽恒源煤电股份有限公司 | Machine-mounted foam dedusting device of integrated excavator |
| CN205330715U (en) * | 2016-01-28 | 2016-06-22 | 安徽理工大学 | A adjustable foam dedusting device of direction for colliery in pit |
| CN210097238U (en) * | 2019-04-17 | 2020-02-21 | 李妍 | Foam type dust removal foaming injection apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10071269B2 (en) * | 2012-01-12 | 2018-09-11 | Rusmar Incorporated | Method and apparatus for applying rock dust to a mine wall |
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| CN101251025A (en) * | 2008-04-08 | 2008-08-27 | 中国矿业大学 | Coal mine down-hole foam dedusting system |
| CN102434187A (en) * | 2011-12-01 | 2012-05-02 | 康立杰 | Foam dust suppression system and foam dust suppression method for mine excavation |
| CN202913992U (en) * | 2012-12-03 | 2013-05-01 | 中国矿业大学 | Underground coal mine dry-type drilling three-stage dust removal device |
| CN203730052U (en) * | 2014-02-11 | 2014-07-23 | 安徽恒源煤电股份有限公司 | Machine-mounted foam dedusting device of integrated excavator |
| CN205330715U (en) * | 2016-01-28 | 2016-06-22 | 安徽理工大学 | A adjustable foam dedusting device of direction for colliery in pit |
| CN210097238U (en) * | 2019-04-17 | 2020-02-21 | 李妍 | Foam type dust removal foaming injection apparatus |
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| CN111720158A (en) | 2020-09-29 |
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