CN108442966B - Mining automatic atomizer of acoustic control - Google Patents
Mining automatic atomizer of acoustic control Download PDFInfo
- Publication number
- CN108442966B CN108442966B CN201810213808.6A CN201810213808A CN108442966B CN 108442966 B CN108442966 B CN 108442966B CN 201810213808 A CN201810213808 A CN 201810213808A CN 108442966 B CN108442966 B CN 108442966B
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- mining
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- pipe
- protection plate
- dust
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- 238000005065 mining Methods 0.000 title claims abstract description 42
- 239000000428 dust Substances 0.000 claims abstract description 81
- 239000007921 spray Substances 0.000 claims abstract description 39
- 238000005507 spraying Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000004575 stone Substances 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000010977 jade Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000003628 erosive 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
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F5/04—Spraying barriers
Abstract
The invention provides a mining sound-control automatic spraying device which comprises a supporting protection plate and a limiting protection groove, wherein the supporting protection plate is fixedly arranged at the end part of the right side of a mining machine through a bolt, and a sound-control main chassis is fixedly arranged on the right side of the top of the mining machine; the dust removal spray pipe is embedded in the support protection plate, and the closed protection plate is fixedly arranged at the front end part of the support protection plate through bolts; four triangular reinforcing ribs are arranged at the rear end part of the supporting and protecting plate in an annular array mode, and four joints are arranged at the rear end of the annular pipe in the dust removing and atomizing pipe in an annular array mode; all fixed mounting have switch solenoid valve at dust removal spray tube rear four places joint, and switch solenoid valve all is connected with the acoustic control mainframe box through the electrical property. The setting of support guard plate makes things convenient for whole atomizer's fixed mounting, blocks the stone of in-process fly-over simultaneously, and the protection dust removal that conveniently cooperatees with shower nozzle water curtain and form similar cover form strengthens the dust fall effect in dust source.
Description
Technical Field
The invention belongs to the technical field of mining equipment, and particularly relates to a mining sound-control automatic spraying device.
Background
The spraying and sprinkling system is suitable for coal conveying lane, main lane and underground parking lot. The sprayed water mist and the sprayed water are used for wetting dust, so that the dust is settled, the dust content in the air is reduced, and the flying of the falling dust is inhibited. Coal mining is often plagued by a number of unexpected difficulties in its mining process. However, in recent years, coal dust and gas become the number one invisible killer in the coal mining process. In order to thoroughly solve and radically solve the problem that coal dust puzzles coal mine safety production, a dust removing method is researched from details of a Xin Lu coal mine, and a water spraying and atomizing device is installed in each underground main roadway, so that a good effect is achieved after a period of time of application.
For example, application number 201710132233.0 discloses a mining spray dust collector, including the dust remover shell, the both ends of dust remover shell all are equipped with and are used for fixed mounting panel, the inner chamber of dust remover shell is equipped with the atomizing box, the one end of atomizing box is equipped with the connecting pipe that is used for the connection, and the connecting pipe extends to the outside of dust remover shell, the one end of dust remover shell is equipped with the connection end plate, the inner chamber both ends of atomizing box all are equipped with the atomizer that is used for the regulation, be equipped with the fan that is used for the air-out between the atomizer, the one end of fan is equipped with the wind gap, the air-out board is installed to the lower extreme of atomizing box, and the inner chamber that goes out the air-out board is equipped with. The invention can increase the using effect of spraying, can comprehensively treat dust in the internal air and increase the working efficiency of the equipment.
The inventor finds that the mining spraying dust removal device has the following problems in the actual use process:
1. wherein the device sprays through the top and removes dust, and the dust at top at first receives the moist of water smoke and carries out the dust fall when using, but thereby water smoke can become less through the absorption of top dust and can not guarantee the dust fall effect of bottom dust, and the absorption that carries out the dust in the air that water smoke is only diffused simultaneously can not form the protection dust fall of similar isolation hood-type, can not avoid the leakage of dust.
For example, application number 201420167749.0 discloses a mining atomizer, including the water storage tank, the atomizing jar, an intake pipe is connected to the one end of atomizing jar, the atomizing jar passes through self priming pipe and water storage tank UNICOM near the face of cylinder of connecting inlet tube one end, the spray tube is connected to the other end of atomizing jar, install the shower nozzle on the spray tube, the water storage tank is located different horizontal planes with the atomizing jar, because atomizing jar is located different horizontal planes with the water storage tank, the self priming pipe is perpendicular with atomizing jar and water storage tank respectively, therefore the direction of motion when the water in the water storage tank gets into the atomizing jar is perpendicular with the atomizing jar, water strikes atomizing jar wall under the high pressure jet effect and makes the water atomization, the water smoke after the atomizing flows to in the spray tube, because the shower nozzle makes water smoke atomize once more, thereby atomization quality has.
The inventor finds that the spraying device for the mine has the following problems in the practical use process:
1. wherein the device sprays through the multi-channel interconnect and removes dust, but can only fix when using and remove dust to the dust that drifts in the air in a certain position, five shower nozzles that set up simultaneously do not form the coverage and spray and can not strengthen dust removal effect, and the dust fall that is close to the shower nozzle position in the air and finishes the back and keep away from the dust of shower nozzle under the poor condition of air flow effect can not obtain effectual dust fall.
Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a mining acoustic control automatic spraying device is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problem, the invention provides a mining sound-control automatic spraying device, which aims to solve the problem that the existing sound-control automatic spraying device can not completely cover a dust source by spraying from the top, so that dust is scattered and the internal environment is influenced.
The invention relates to a mining sound control automatic spraying device, which is achieved by the following specific technical means:
a mining sound-control automatic spraying device comprises a supporting protection plate, a sealing protection plate, a mining miner, a sound-control mainframe box, a switching electromagnetic valve, a triangular reinforcing rib, a dust removal spraying pipe, an embedded fixing groove, an embedded limiting groove and a limiting protection groove, wherein the supporting protection plate is fixedly arranged at the end part of the right side of the mining miner through a bolt, and the sound-control mainframe box is fixedly arranged at the right side of the top of the mining miner; the dust removal spray pipe is embedded in the support protection plate, and the closed protection plate is fixedly arranged at the front end part of the support protection plate through bolts; four triangular reinforcing ribs are arranged at the rear end part of the supporting and protecting plate in an annular array mode, and four joints are arranged at the rear end of the annular pipe in the dust removing and atomizing pipe in an annular array mode; all fixed mounting have switch solenoid valve at dust removal spray tube rear four places joint, and switch solenoid valve all is connected with the acoustic control mainframe box through the electrical property.
Furthermore, the annular embedding fixing groove is formed in the front end face of the supporting protection plate, and the embedding limiting groove is formed in the embedding fixing groove.
Furthermore, a limiting protection groove is formed in the rear end face of the closed protection plate, and threaded mounting holes which are arranged in an annular array in order are formed in the surface of the closed protection plate.
Furthermore, both ends all are provided with the screw thread installation section of outband screw thread about the switching solenoid valve, and switching solenoid valve left side tip all is connected with external water supply pipe through the screw thread.
Furthermore, thirty embedded pipes are arranged outside the dust removal spray pipe in an annular array mode, and two spray head connecting pipes are arranged in front of the embedded pipes of the dust removal spray pipe.
Furthermore, inlay fixed slot inside surface annular array and seted up a plurality of screw thread mounting holes, and inlay equal fixed mounting on the inside jade of fixed slot and have sealed dustproof rubber layer.
Furthermore, inlay the outside annular array of spacing groove and be provided with thirty embedding pipe semi-arc recesses, and inlay the inside annular embedding pipe semi-arc recess that is provided with the area mounting hole of four places of spacing inslot.
Furthermore, the external annular array of the limiting protection groove is provided with thirty embedded pipe semi-arc grooves, and two insertion holes are formed in the limiting protection groove embedded pipe semi-arc grooves.
Compared with the prior art, the invention has the following beneficial effects:
the setting of support guard plate makes things convenient for whole atomizer's fixed mounting, blocks the stone of in-process fly-over simultaneously, and the protection dust removal that conveniently cooperatees with shower nozzle water curtain and form similar cover form strengthens the dust fall effect in dust source.
The setting of dust removal spray pipe makes the water curtain that sprays form two-layer protection and blocks, has solved and has sprayed from the top and can not cover the dust source completely and cause the dust to spill the phenomenon that influences the internal environment, and the mode of watering through the parcel formula makes the dust in dust source spill and obtains effectual reduction.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a front view of the support shield of the present invention;
FIG. 5 is a rear view of the support shield of the present invention;
FIG. 6 is a front view of the enclosure fender of the present invention;
FIG. 7 is a rear view of the closure guard of the present invention;
fig. 8 is a front view of the dusting spray tube of the present invention.
In the figure: 1. the mining machine comprises a supporting protection plate, 2 a sealing protection plate, 3 a mining machine, 4 a voice control mainframe box, 5 a switch electromagnetic valve, 6 a triangular reinforcing rib, 7 a dust removal spray pipe, 8 an embedded fixing groove, 9 an embedded limiting groove, and 10 a limiting protection groove.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 8:
the invention provides a mining sound-control automatic spraying device which comprises a supporting protection plate 1, a closed protection plate 2, a mining machine 3, a sound-control main case 4, a switching electromagnetic valve 5, a triangular reinforcing rib 6, a dust removal spraying pipe 7, an embedded fixing groove 8, an embedded limiting groove 9 and a limiting protection groove 10, wherein the supporting protection plate 1 is fixedly arranged at the right side end part of the mining machine 3 through a bolt, and the sound-control main case 4 is fixedly arranged at the right side of the top part of the mining machine 3; the dust removal spray pipe 7 is embedded in the support protection plate 1, and the closed protection plate 2 is fixedly arranged at the front end part of the support protection plate 1 through bolts; four triangular reinforcing ribs 6 are arranged at the rear end part of the supporting and protecting plate 1 in an annular array mode, and four connectors are arranged in an annular array mode at the rear of an annular pipe in the dust removing and spraying pipe 7; all fixed mounting have switch solenoid valve 5 in the equal fixed mounting in the four places joint in dust removal spray tube 7 rear, and switch solenoid valve 5 all is connected with acoustic control mainframe box 4 through the electrical property.
Wherein, support 1 the place ahead terminal surface of guard plate and seted up the annular fixed slot 8 of inlaying, and inlay fixed slot 8 inside and seted up and inlay spacing groove 9, conveniently seal 2 embedding installations of guard plate, make things convenient for the installation of 7 embedding of inside dust removal spray pipe.
Wherein, seal 2 rear end faces of guard plate and seted up spacing protective groove 10, and seal 2 surfaces of guard plate and set up the threaded mounting hole of annular array range in order, conveniently wrap up inside dust removal injection spray pipe 7 and seal the protection, make things convenient for fixed mounting inside 1 terminal surface of support guard plate.
Wherein, both ends all are provided with the screw thread installation section of outband screw thread about switching solenoid valve 5, and 5 left side tip of switching solenoid valve all are connected with external water supply pipeline through the screw thread, make things convenient for the installation of self fixed and maintenance to change, conveniently are connected with external pipeline and supply water.
Wherein, dust removal spray pipe 7 outside annular array is provided with thirty embedding pipes, and 7 embedding pipes the place ahead of dust removal spray pipe all is provided with two atomising head takeovers, conveniently forms two-layer dust removal water curtain, makes things convenient for the fixed mounting and the maintenance of inside dustproof shower nozzle to change.
Wherein, inlay 8 inside surperficial ring arrays in fixed slot and seted up a plurality of screw thread mounting holes, and inlay equal fixed mounting on 8 inside jade of fixed slot and have sealed dustproof rubber layer, conveniently carry out fixed mounting through the bolt to sealed guard plate 2, prevent that outside dust from getting into inside and eroding the pipeline.
Wherein, inlay the outside annular array of spacing groove 9 and be provided with thirty embedding pipe semiarcs recesses, and inlay 9 inside annular embedding pipe semiarcs recesses that are provided with the mounting hole of taking four places of spacing groove, it is spacing to make things convenient for the embedding of dust removal spray tube 7, the passing of rear connector in the middle of the convenient dust removal spray tube 7.
Wherein, the outside annular array of spacing protective tank 10 is provided with thirty embedding pipe semi-arc recesses, and two patchholes have all been seted up to spacing protective tank 10 embedding pipe semi-arc recesses inside, and the embedding of the spray pipe 7 that conveniently removes dust is spacing, the passing of the spray head takeover in 7 the place ahead of the spray pipe that conveniently removes dust.
The specific use mode and function of the embodiment are as follows:
in the invention, a support protection plate 1 is fixedly arranged at the right head position of a mining machine 3 through bolts, a dust removal spray pipe 7 is fixedly arranged inside the support protection plate 1, a closed protection plate 2 is fixedly arranged at the front end part of the support protection plate 1 through bolts to limit and protect the dust removal spray pipe 7 inside, a switch electromagnetic valve 5 is fixedly arranged through threads, meanwhile, a left connecting port of a switching electromagnetic valve 5 is connected with an external water supply pipeline, the switching electromagnetic valve 5 is connected with a sound control mainframe box 4 through electrical property, the sound control mainframe box 4 is connected with an external power supply through electrical property, a dustproof spray joint is installed inside a spray head connecting pipe of a dust removal spray pipe 7 through threads, an exploitation drill bit is fixedly installed at a machine head at the right end part of a mining machine 3, and meanwhile, the supporting protection plate 1 is noticed not to rotate along with the exploitation drill bit of the mining machine 3; the support protection plate 1 blocks stones splashed in the mining process, and is convenient to cooperate with the spray head water curtain to form protection dust removal similar to a cover shape; wherein the spray pipe 7 that removes dust makes the water curtain that sprays form two-layer protection and blocks, has solved and has sprayed from the top and can not cover the dust source completely and cause the dust to spill the phenomenon that influences the internal environment, and the mode of watering through the parcel formula makes the dust in dust source spill and obtains effectual reduction.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides an automatic atomizer of mining acoustic control, this automatic atomizer of mining acoustic control is applied to on mining miner (3), and mining miner (3) top right side fixed mounting has acoustic control mainframe box (4), its characterized in that: the mining sound-control automatic spraying device comprises a supporting protection plate (1), a closed protection plate (2), a switching electromagnetic valve (5), a triangular reinforcing rib (6), a dust removal spraying pipe (7), an embedded fixing groove (8), an embedded limiting groove (9) and a limiting protection groove (10); the supporting protection plate (1) is fixedly arranged at the right side end part of the mining machine (3) through bolts; a dust removal spray pipe (7) is embedded in the supporting and protecting plate (1), and a closed protecting plate (2) is fixedly mounted at the front end part of the supporting and protecting plate (1) through bolts; four triangular reinforcing ribs (6) are arranged at the rear end part of the supporting and protecting plate (1) in an annular array mode, and four connectors are arranged in an annular array mode at the rear part of an annular pipe in the dust removing and spraying pipe (7); the four joints behind the dust removal spray pipe (7) are fixedly provided with switch electromagnetic valves (5), and the switch electromagnetic valves (5) are electrically connected with the sound control mainframe box (4); thirty embedded pipes are arranged on the outer portion of the dust removal spraying pipe (7) in an annular array mode, and two spraying head connecting pipes are arranged in front of the embedded pipes of the dust removal spraying pipe (7).
2. The mining acoustic control automatic spraying device according to claim 1, characterized in that: the supporting protection plate (1) is characterized in that an annular embedded fixing groove (8) is formed in the front end face of the supporting protection plate (1), and an embedded limiting groove (9) is formed in the embedded fixing groove (8).
3. The mining acoustic control automatic spraying device according to claim 1, characterized in that: the rear end face of the closed protection plate (2) is provided with a limiting protection groove (10), and the surface of the closed protection plate (2) is provided with threaded mounting holes which are arranged in an annular array in order.
4. The mining acoustic control automatic spraying device according to claim 1, characterized in that: both ends all are provided with the screw thread installation section of outband screw thread about switching solenoid valve (5), and switching solenoid valve (5) left side tip all is connected with outside water supply pipe through the screw thread.
5. The mining acoustic control automatic spraying device according to claim 1, characterized in that: inlay fixed slot (8) inside surface annular array and seted up a plurality of screw thread mounting holes, and inlay equal fixed mounting on fixed slot (8) inside wall and have sealed dustproof rubber layer.
6. The mining acoustic control automatic spraying device according to claim 2, characterized in that: the outer annular array of the embedded limiting groove (9) is provided with thirty embedded pipe semi-arc grooves, and the embedded limiting groove (9) is internally provided with annular embedded pipe semi-arc grooves with four mounting holes.
7. The mining acoustic control automatic spraying device according to claim 3, characterized in that: thirty embedded pipe semi-arc grooves are formed in the external annular array of the limiting protection groove (10), and two insertion holes are formed in the limiting protection groove (10) embedded pipe semi-arc grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213808.6A CN108442966B (en) | 2018-03-15 | 2018-03-15 | Mining automatic atomizer of acoustic control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213808.6A CN108442966B (en) | 2018-03-15 | 2018-03-15 | Mining automatic atomizer of acoustic control |
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| Publication Number | Publication Date |
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| CN108442966A CN108442966A (en) | 2018-08-24 |
| CN108442966B true CN108442966B (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810213808.6A Active CN108442966B (en) | 2018-03-15 | 2018-03-15 | Mining automatic atomizer of acoustic control |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111804089B (en) * | 2020-05-18 | 2022-02-18 | 温州市瓯江引水发展有限公司 | Rapid tunnel dust removal system and rapid tunnel dust removal method |
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| CN201763343U (en) * | 2010-06-12 | 2011-03-16 | 淮南矿业(集团)有限责任公司 | Spray device and coal winning machine |
| CN202031630U (en) * | 2011-04-02 | 2011-11-09 | 山东黄金矿业（玲珑）有限公司 | Spray dust reducing device for gold mine |
| CN102312677A (en) * | 2011-09-23 | 2012-01-11 | 河南中煤矿业科技发展有限公司 | Water jet dust removal spraying device for mine |
| CN102733842A (en) * | 2012-04-25 | 2012-10-17 | 新汶矿业集团有限责任公司孙村煤矿 | Electronic sound control automatic spraying and dust-settling control device and working method thereof |
| CN103206237A (en) * | 2013-03-29 | 2013-07-17 | 枣庄矿业（集团）有限责任公司滨湖煤矿 | Surface slide total-seal spraying device |
| CN203412617U (en) * | 2013-07-29 | 2014-01-29 | 安徽千一机械设备有限公司 | Voice control type automatic spraying and aspirating device |
| CN105156146A (en) * | 2015-10-09 | 2015-12-16 | 枣庄矿业(集团)有限责任公司田陈煤矿 | Blasting warning linkage intelligent spraying control device |
| CN205206861U (en) * | 2015-12-15 | 2016-05-04 | 山东鲁泰控股集团有限公司鹿洼煤矿 | Atomizer is blown out in acoustic control time delay |
-
2018
- 2018-03-15 CN CN201810213808.6A patent/CN108442966B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU877069A1 (en) * | 1980-01-09 | 1981-10-30 | за вители | Liquid sprayer |
| CN201763343U (en) * | 2010-06-12 | 2011-03-16 | 淮南矿业(集团)有限责任公司 | Spray device and coal winning machine |
| CN202031630U (en) * | 2011-04-02 | 2011-11-09 | 山东黄金矿业（玲珑）有限公司 | Spray dust reducing device for gold mine |
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| CN108442966A (en) | 2018-08-24 |
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Address after: 233316 No. 125, long Miao village, Mo Hekou Town, Huaishang District, Bengbu, Anhui Applicant after: Zhu Baiyan Address before: 233316 No. 125 Zhenlong temple village, Wuhe County, Bengbu, Anhui Applicant before: Zhu Baiyan |
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Effective date of registration: 20220125 Address after: 221116 c3-1-101, 103 and 105, national security science and Technology Industrial Park, Lijiang Road, high tech Industrial Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu kelma Intelligent Control Technology Co.,Ltd. Address before: 221116 building 1-1403, fortune mansion, Beijing Road West, Xiangjiang Road North, Tongshan Town, Xuzhou City, Jiangsu Province Patentee before: Xuzhou Maiji Technology Co.,Ltd. |
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Application publication date: 20180824 Assignee: XUZHOU KEERMA TECHNOLOGY Co.,Ltd. Assignor: Jiangsu kelma Intelligent Control Technology Co.,Ltd. Contract record no.: X2023980049655 Denomination of invention: A voice controlled automatic spray device for mining Granted publication date: 20210713 License type: Common License Record date: 20231205 |