CN110681226A - Environment-friendly energy-saving intelligent dust suppression equipment - Google Patents
Environment-friendly energy-saving intelligent dust suppression equipment Download PDFInfo
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- CN110681226A CN110681226A CN201911068219.4A CN201911068219A CN110681226A CN 110681226 A CN110681226 A CN 110681226A CN 201911068219 A CN201911068219 A CN 201911068219A CN 110681226 A CN110681226 A CN 110681226A
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- 239000000428 dust Substances 0.000 title claims abstract description 69
- 230000001629 suppression Effects 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 209
- 239000003814 drug Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000008399 tap water Substances 0.000 claims abstract description 4
- 235000020679 tap water Nutrition 0.000 claims abstract description 4
- 210000003437 trachea Anatomy 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 description 11
- 239000007921 spray Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 206010035653 pneumoconiosis Diseases 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 208000037976 chronic inflammation Diseases 0.000 description 1
- 230000006020 chronic inflammation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000003456 pulmonary alveoli Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention discloses environment-friendly energy-saving intelligent dust suppression equipment which comprises a box body, wherein a water tank and a medicine box are arranged on the lower part of the box body in parallel, the water tank is connected with a water inlet pipe, the other end of the water inlet pipe penetrates through the box body and is connected to a tap water pipe, and a water filter is arranged on the water inlet pipe; the automatic medicine-taking device is characterized by further comprising a liquid medicine mixing pipe, the water tank and the medicine box are respectively connected with the liquid medicine mixing pipe through a first water supply pipe and a second water supply pipe, the first water supply pipe and the second water supply pipe are respectively provided with a water pump and a medicine pump, the first water supply pipe is connected with an overflow pipe, the tail end of the overflow pipe is communicated with the water tank, the overflow pipe is provided with an overflow valve, the tail end of the liquid medicine mixing pipe is respectively connected with a third water supply pipe and a fourth water supply pipe, the third water supply pipe and the fourth water supply pipe are respectively connected with a first water pipe group and a second water pipe; the invention has the advantages of novel design, compact structure, small volume, light weight, low energy consumption, long service life, wide dust removal range and high efficiency.
Description
Technical Field
The invention belongs to the technical field of spraying dust suppression equipment, and particularly relates to environment-friendly energy-saving intelligent dust suppression equipment.
Background
Dust pollution endangers the environment and human health, and is one of the main factors causing environmental pollution. In production and storage sites such as ports and docks, power plants, cement plants, coal storage yards and the like, and railway and road transportation processes, a large amount of dust can be generated frequently, so that the production safety is directly threatened, and the environment around the production site is greatly polluted.
The dust is easy to be absorbed by human body through the respiratory tract due to small particle size and deposited in the respiratory tract from nasal cavity to alveolus, if not cleaned in time, chronic inflammation lesion can be caused by long-term chronic action, and people can suffer from pneumoconiosis, pneumoconiosis and other diseases in serious cases. At present, dust in the atmosphere mainly comes from automobile exhaust, raise dust generated in municipal construction of buildings, raise dust generated in the processes of coal transportation and stacking, industrial dust and the like.
The most common method of suppressing fugitive dust is spraying. The main function of spraying dust suppression is to wet the fine dry dust particles, increase the relative density of the dust particles, and bond the dust particles into larger particles, so that the dust particles cannot fly under the action of external force. The existing spraying dust suppression device is dispersed, has small spraying range, low efficiency and limited dust suppression effect, can not effectively isolate and isolate dust, so that the dust is diffused all around, and the dust suppression device which can support large-range and multi-spraying-point work is not available.
Disclosure of Invention
The invention aims to provide environment-friendly and energy-saving intelligent dust suppression equipment, which solves the problems in the prior art, supports multi-nozzle spraying dust suppression work, prevents dust diffusion, and has the advantages of high dust suppression efficiency, wide range and good dust suppression effect.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly energy-saving intelligent dust suppression device comprises a box body, wherein a switch door is hinged to one side of the box body, a lighting lamp is arranged at the upper part in the box body, ventilating fans are arranged on two opposite side walls of the box body, an electric cabinet is arranged at the upper part in the box body, and a water pipe support is vertically arranged in the box body;
the lower part of the box body is provided with a water tank and a medicine box in parallel, the water tank is connected with a water inlet pipe, the other end of the water inlet pipe penetrates through the box body and is connected to a tap water pipe, and a water filter is arranged on the water inlet pipe; the automatic medicine-taking device is characterized by further comprising a liquid medicine mixing pipe, the water tank and the medicine box are respectively connected with the liquid medicine mixing pipe through a first water supply pipe and a second water supply pipe, the first water supply pipe and the second water supply pipe are respectively provided with a water pump and a medicine pump, the first water supply pipe is connected with an overflow pipe, the tail end of the overflow pipe is communicated with the water tank, the overflow pipe is provided with an overflow valve, the tail end of the liquid medicine mixing pipe is respectively connected with a third water supply pipe and a fourth water supply pipe, the third water supply pipe and the fourth water supply pipe are respectively connected with a first water pipe group and a second water pipe;
still include the intake pipe, the intake pipe outer end runs through the box and is connected the air pump, governing valve and air cleaner are installed to the intake pipe, the intake pipe is connected with first air supply pipe respectively, the second air supply pipe, third air supply pipe and fourth air supply pipe, first air supply pipe and second air supply pipe are connected with first air nest of tubes and second air nest of tubes respectively, first air nest of tubes and second air nest of tubes all include a plurality of mutual parallel arrangement's trachea, the water pipe of first water nest of tubes or second water nest of tubes and the trachea one-to-one of first air nest of tubes or second air nest of tubes, and be connected with same atomizer, third air supply pipe and fourth air supply pipe respectively with third delivery pipe and fourth delivery union coupling.
Preferably, the water pressure in the water inlet pipe is 0.3 MPa.
Preferably, the number of the water filters is two, and the water filters include a coarse filter and a fine filter, wherein the coarse filter is a filter screen filter, and the fine filter is a membrane filter.
Preferably, liquid level switches are arranged in the water tank and the medicine chest.
Preferably, the first water supply pipe and the second water supply pipe are both provided with a one-way valve, and the water pipes of the first water pipe group and the second water pipe group are both provided with a flowmeter.
Preferably, the first water pipe group and the second water pipe group are fixedly arranged on two sides of the water pipe support, and the first air pipe group and the second air pipe group are fixedly arranged on the inner wall of the box body.
Preferably, the water pipes of the first water pipe group and the second water pipe group and the tail ends of the air pipes of the first air pipe group and the second air pipe group penetrate through the upper side wall of the box body.
Preferably, the first water supply pipe, the second water supply pipe and the air inlet pipe are all provided with pressure gauges.
Preferably, the third water supply pipe, the fourth water supply pipe, the first air supply pipe, the second air supply pipe, the third air supply pipe and the fourth air supply pipe are all provided with electromagnetic valves.
Preferably, the water pipes of the first water pipe group and the second water pipe group and the air pipes of the first air pipe group and the second air pipe group are provided with stop valves.
Compared with the prior art, the invention has the following beneficial effects:
the dust suppression device is suitable for dust suppression of large-scale dust workshops, open-air mines and other places, the multiple groups of spray heads are arranged above the dust area, the large number of spray heads can be supported, and meanwhile, the dust suppression is realized by spraying from top to bottom, and through arrangement of different positions of a large number of atomized sprays, dust points can be effectively sealed, the dust area can be isolated, and dust diffusion is prevented;
the invention has the advantages of stable operation, high spraying efficiency, wide range, good dust suppression effect, low energy consumption, long service life and wide application range.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the connection structure of the present invention.
In the figure: 1. the device comprises a box body, 2, a lighting lamp, 3, a ventilating fan, 4, an electric cabinet, 5, a water pipe support, 6, a water tank, 7, a water tank, 8, a water inlet pipe, 9, a water filter, 10, a liquid medicine mixing pipe, 11, a first water supply pipe, 12, a second water supply pipe, 13, a first water pipe group, 14, a second water pipe group, 15, a third water supply pipe, 16, a fourth water supply pipe, 17, a first air pipe group, 18, a second air pipe, 19, an air inlet pipe, 20, a regulating valve, 21, an air filter, 22, a first air supply pipe, 23, a second air supply pipe, 24, a third air supply pipe, 25, a fourth air supply pipe, 26, a water pump, 27, a medicine pump, 28, an overflow valve, 29, a liquid level switch, 30, a one-way valve, 31, a pressure gauge, 32, an electromagnetic valve, 33.
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. 1-2, the embodiment provides an environment-friendly, energy-saving and intelligent dust suppression device, which comprises a box body 1, wherein a switch door is hinged to one side of the box body 1, an illuminating lamp 2 is arranged at the upper part in the box body 1, ventilating fans 3 are arranged on two opposite side walls of the box body 1, an electric cabinet 4 is arranged at the upper part in the box body 1, and a water pipe support 5 is vertically arranged in the box body 1;
a water tank 6 and a medicine box 7 are arranged on the lower portion of the box body 1 in parallel, the water tank 6 is connected with a water inlet pipe 8, the other end of the water inlet pipe 8 penetrates through the box body 1 and is connected to a tap water pipe, and a water filter 9 is installed on the water inlet pipe 8; the device is characterized by further comprising a liquid medicine mixing pipe 10, the water tank 6 and the medicine box 7 are respectively connected with the liquid medicine mixing pipe 10 through a first water supply pipe 11 and a second water supply pipe 12, the first water supply pipe 11 and the second water supply pipe 12 are respectively provided with a water pump 26 and a medicine pump 27, the first water supply pipe 11 is connected with an overflow pipe, the tail end of the overflow pipe is communicated with the water tank 6, the overflow pipe is provided with an overflow valve 28, the tail end of the liquid medicine mixing pipe 10 is respectively connected with a third water supply pipe 15 and a fourth water supply pipe 16, the third water supply pipe 15 and the fourth water supply pipe 16 are respectively connected with the first water pipe group 13 and the second water pipe group 14, and the first water;
still include intake pipe 19, intake pipe 19 outer end runs through box 1 and is connected the air pump, governing valve 20 and gas filter 21 are installed to intake pipe 19, intake pipe 19 is connected with first air supply pipe 22 respectively, second air supply pipe 23, third air supply pipe 24 and fourth air supply pipe 25, first air supply pipe 22 and second air supply pipe 23 are connected with first air tube group 17 and second air tube group 18 respectively, first air tube group 17 and second air tube group 18 all include a plurality of mutual parallel arrangement's trachea, the water pipe of first water tube group 13 or second water tube group 14 and the trachea one-to-one of first air tube group 17 or second air tube group 18, and be connected with same atomizer, third air supply pipe 24 and fourth air supply pipe 25 are connected with third delivery pipe 15 and fourth delivery pipe 16 respectively.
In order to ensure a stable water source, in this embodiment, the water pressure in the water inlet pipe 8 is 0.3 MPa.
In order to facilitate the spraying of the atomizer and avoid the blockage of the atomizer, in this embodiment, the water filters 9 are two, including a coarse filter and a fine filter, the coarse filter is a filter screen filter, and the fine filter is a membrane filter.
In order to facilitate timely replenishment of water and dust suppressant in the water tank 6 and the medicine box 7, in this embodiment, liquid level switches 29 are provided in both the water tank 6 and the medicine box 7.
In order to realize the one-way water supply, prevent the reverse flow of water, and facilitate the monitoring of the amount of water, in this embodiment, the first water supply pipe 11 and the second water supply pipe 12 are each provided with a one-way valve 30, and the water pipes of the first water pipe group 13 and the second water pipe group 14 are each provided with a flow meter 34.
In order to ensure the stable structure and the neat and beautiful arrangement of the components in the box body 1, in the embodiment, the first water tube group 13 and the second water tube group 14 are fixedly arranged at two sides of the water tube support 5, and the first air tube group 17 and the second air tube group 18 are fixedly arranged at the inner wall of the box body 1.
In order to facilitate connection with an atomizing nozzle arranged at a high position, in the present embodiment, the water pipes of the first water pipe group 13 and the second water pipe group 14, and the air pipe ends of the first air pipe group 17 and the second air pipe group 18 all penetrate through the upper side wall of the box body 1.
In order to monitor the water pressure and air pressure in the water pipe and the air pipe in real time and ensure the safety and stability of the device, in this embodiment, pressure gauges are installed on the first water supply pipe 11, the second water supply pipe 12 and the air inlet pipe 19.
In order to realize water and gas control, avoid energy waste and clean water pipes, in this embodiment, the third water supply pipe 15, the fourth water supply pipe 16, the first air supply pipe 22, the second air supply pipe 23, the third air supply pipe 24 and the fourth air supply pipe 25 are all provided with electromagnetic valves.
In order to facilitate opening and closing of the water pipe and the air pipe with respect to the dust point and avoid waste of resources, in the present embodiment, the stop valves 33 are installed on the water pipes of the first water pipe group 13 and the second water pipe group 14 and the air pipes of the first air pipe group 17 and the second air pipe group 18.
When the dust suppression device is used, the water inlet pipe 8 provides a water source for the water tank 6, the water filter 9 is installed on the water inlet pipe 8 to purify the water source, so that impurities are prevented from entering the atomizing spray head to cause blockage, the configured liquid dust suppression agent is added into the medicine box 7, the water pump 26 and the medicine pump 27 pump the water and the dust suppression agent in the water tank 6 and the medicine box 7, the water and the dust suppression agent are mixed in the liquid medicine mixing pipe, the liquid level switches in the water tank 6 and the medicine box 7 facilitate the adjustment of water inflow by workers and know that the configured dust suppression agent is added in time, the liquid backflow of the first water supply pipe 11 and the second water supply pipe 12 is avoided by the check valve 30, and the overflow valve 28 is arranged to prevent the overlarge pressure in; the dust suppression mixed liquid in the chemical liquid mixing pipe 10 enters the first water pipe group 13 and the second water pipe group 14 through a third water supply pipe 15 and a fourth water supply pipe 16 respectively; the air inlet pipe 19 is connected with high-pressure air brought by the air pump, an air filter 21 is adopted to purify an air source, the regulating valve 20 is used to regulate the flow rate of the air, the air inlet pipe 19 supplies air for the first air pipe 17 and the second air pipe group 18 through a first air supply pipe 22 and a second air supply pipe 23 respectively, each atomizing nozzle is connected with an air pipe and a water pipe, so that dust suppression mixed liquid and the air are mixed and fully atomized, and high-efficiency dust reduction is realized; the electromagnetic valve 32 is convenient for the integral opening and closing of the water pipe group and the air pipe group; the air inlet pipe 19 is also connected with a third water supply pipe 15 and a fourth water supply pipe 16 through a third air supply pipe 24 and a fourth air supply pipe 25 respectively, electromagnetic valves are installed on the third air supply pipe 24 and the fourth air supply pipe 25, the electromagnetic valves are closed under the normal working state of the device, and the electromagnetic valves are opened for a period of time after the working is finished, so that the liquid in the water pipes is emptied and cleaned, the equipment faults are reduced, and the service life is prolonged; the pressure gauge 31 monitors the pressure in the first and second water supply pipes 11 and 12 and the intake pipe 19; flowmeter 34 is convenient for monitor the flow of each water pipe of water nest, and stop valve 33 is convenient for realize the switching of single dust point upside atomizer, and ventilation fan 3 realizes the ventilation in box 1.
In conclusion, the dust suppression device is suitable for dust suppression in large-scale dust workshops, open-air mines and other places, the multiple groups of spray heads are arranged above the dust area, the large number of spray heads can be supported, and meanwhile, spraying and dust suppression can be carried out from top to bottom, and through arrangement of different positions of a large number of atomized sprays, dust points can be effectively sealed, the dust area can be isolated, and dust diffusion is prevented; the invention has the advantages of stable operation, high spraying efficiency, wide range, good dust suppression effect, low energy consumption, long service life and wide application range.
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 (10)
1. The utility model provides an environmental protection and energy saving intelligence presses down dirt equipment, includes the box, its characterized in that: a switch door is hinged to one side of the box body, a lighting lamp is arranged at the upper part in the box body, ventilating fans are arranged on two opposite side walls of the box body, an electric cabinet is arranged at the upper part in the box body, and a water pipe support is vertically arranged in the box body;
the lower part of the box body is provided with a water tank and a medicine box in parallel, the water tank is connected with a water inlet pipe, the other end of the water inlet pipe penetrates through the box body and is connected to a tap water pipe, and a water filter is arranged on the water inlet pipe; the automatic medicine-taking device is characterized by further comprising a liquid medicine mixing pipe, the water tank and the medicine box are respectively connected with the liquid medicine mixing pipe through a first water supply pipe and a second water supply pipe, the first water supply pipe and the second water supply pipe are respectively provided with a water pump and a medicine pump, the first water supply pipe is connected with an overflow pipe, the tail end of the overflow pipe is communicated with the water tank, the overflow pipe is provided with an overflow valve, the tail end of the liquid medicine mixing pipe is respectively connected with a third water supply pipe and a fourth water supply pipe, the third water supply pipe and the fourth water supply pipe are respectively connected with a first water pipe group and a second water pipe;
still include the intake pipe, the intake pipe outer end runs through the box and is connected the air pump, governing valve and air cleaner are installed to the intake pipe, the intake pipe is connected with first air supply pipe respectively, the second air supply pipe, third air supply pipe and fourth air supply pipe, first air supply pipe and second air supply pipe are connected with first air nest of tubes and second air nest of tubes respectively, first air nest of tubes and second air nest of tubes all include a plurality of mutual parallel arrangement's trachea, the water pipe of first water nest of tubes or second water nest of tubes and the trachea one-to-one of first air nest of tubes or second air nest of tubes, and be connected with same atomizer, third air supply pipe and fourth air supply pipe respectively with third delivery pipe and fourth delivery union coupling.
2. The environment-friendly energy-saving intelligent dust suppression device according to claim 1, characterized in that: the water pressure in the water inlet pipe is 0.3 MPa.
3. The environment-friendly energy-saving intelligent dust suppression device according to claim 2, characterized in that: the water filter sets up to two, including coarse filter and fine filter, the coarse filter is the filter screen filter, and the fine filter is the membrane filter.
4. The environment-friendly energy-saving intelligent dust suppression device according to claim 3, characterized in that: liquid level switches are arranged in the water tank and the medicine box.
5. The environment-friendly energy-saving intelligent dust suppression device according to claim 4, characterized in that: check valves are installed on the first water supply pipe and the second water supply pipe, and flow meters are installed on the water pipes of the first water pipe group and the second water pipe group.
6. The environment-friendly energy-saving intelligent dust suppression device according to claim 5, characterized in that: first water nest of tubes and second water nest of tubes are fixed to be set up in water pipe support both sides, and first trachea group and second trachea group are fixed to be set up the box inner wall.
7. The environment-friendly energy-saving intelligent dust suppression device according to claim 6, characterized in that: the water pipes of the first water pipe group and the second water pipe group and the tail ends of the air pipes of the first air pipe group and the second air pipe group penetrate through the upper side wall of the box body.
8. The environment-friendly energy-saving intelligent dust suppression device according to claim 7, characterized in that: the first water supply pipe, the second water supply pipe and the air inlet pipe are all provided with pressure gauges.
9. The environment-friendly energy-saving intelligent dust suppression device according to claim 8, characterized in that: solenoid valves are installed on the third water supply pipe, the fourth water supply pipe, the first air supply pipe, the second air supply pipe, the third air supply pipe and the fourth air supply pipe.
10. The environment-friendly energy-saving intelligent dust suppression device according to claim 9, characterized in that: stop valves are installed on the water pipes of the first water pipe group and the second water pipe group and the air pipes of the first air pipe group and the second air pipe group.
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CN201911068219.4A CN110681226A (en) | 2019-11-05 | 2019-11-05 | Environment-friendly energy-saving intelligent dust suppression equipment |
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CN201911068219.4A CN110681226A (en) | 2019-11-05 | 2019-11-05 | Environment-friendly energy-saving intelligent dust suppression equipment |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111298999A (en) * | 2020-04-02 | 2020-06-19 | 成都润博科技有限公司 | Micro-control type double-fluid spraying system and spraying method thereof |
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CN205988639U (en) * | 2016-08-26 | 2017-03-01 | 浙江杭真能源科技股份有限公司 | A kind of novel spray dust reducing device |
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CN210964417U (en) * | 2019-11-05 | 2020-07-10 | 河南省碧易克实业有限公司 | Environment-friendly energy-saving intelligent dust suppression equipment |
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US20110165663A1 (en) * | 2004-07-16 | 2011-07-07 | Davis Howard P | Mist Injector for Gas Treatment |
CN200987943Y (en) * | 2006-10-24 | 2007-12-12 | 黄金鹿 | Spraying control raise dust device |
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CN111298999A (en) * | 2020-04-02 | 2020-06-19 | 成都润博科技有限公司 | Micro-control type double-fluid spraying system and spraying method thereof |
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