CN112090239A - Toxic gas collecting equipment for asphalt paving in high-temperature environment - Google Patents
Toxic gas collecting equipment for asphalt paving in high-temperature environment Download PDFInfo
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- CN112090239A CN112090239A CN202010995739.6A CN202010995739A CN112090239A CN 112090239 A CN112090239 A CN 112090239A CN 202010995739 A CN202010995739 A CN 202010995739A CN 112090239 A CN112090239 A CN 112090239A
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- shell
- cavity
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- shaped cavity
- strip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses toxic gas collecting equipment for asphalt paving in a high-temperature environment, which comprises a shell, wherein purified liquid is arranged in the shell, a plurality of circular cavities are formed in the lower end of the shell, the inner walls of the circular cavities are jointly and rotatably connected with a cross rod, a plurality of fan blades are fixedly connected to the side wall of the cross rod in the circular cavity, an air inlet communicated with the inner wall of the circular cavity is formed in the lower end of the shell, and an air outlet connected with the inner wall of a one-way air outlet pipe is formed in the top of the circular cavity. According to the invention, the evaporation capacity of the evaporated liquid is increased due to the higher temperature of the asphalt surface, so that the sliding plate is pushed to slide downwards, the pressure in the cavity of the sliding plug is increased, the sliding plug and the screw nut are pushed to slide, and the screw rotates, so that the fan blades rotate, toxic gas released from the asphalt surface is led into the shell to be purified and then discharged, the pollution to the surrounding environment is avoided, the body health of constructors is influenced, meanwhile, the whole process is carried out autonomously, no external power equipment is needed, and the energy-saving and environment-friendly effects are achieved.
Description
Technical Field
The invention relates to the technical field of gas collecting equipment, in particular to toxic gas collecting equipment for asphalt paving in a high-temperature environment.
Background
The asphalt is a black-brown complex mixture composed of hydrocarbons with different molecular weights and non-metallic derivatives thereof, and is a waterproof, moistureproof and anticorrosive organic cementing material, so that when the asphalt is used as a pavement paving material, the pavement is flat, waterproof and durable, and the asphalt is widely used for pavement paving.
Asphalt is in order to guarantee its effect of laying when laying, generally all chooses hot weather to lay, but asphalt can take place the thermal cracking under high temperature environment, can produce poisonous harmful gas, has polycyclic aromatic hydrocarbon to release, does not carry out purification treatment to these toxic gases when laying asphalt at present for these toxic gases directly release, cause the pollution to the surrounding environment, influence constructor's healthy.
Based on the toxic gas collecting equipment, the invention provides toxic gas collecting equipment for asphalt paving in a high-temperature environment.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides toxic gas collecting equipment for asphalt pavement in a high-temperature environment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a toxic gas collecting device for asphalt paving in a high-temperature environment comprises a shell, wherein a purifying liquid is arranged in the shell, the lower end of the shell is provided with a plurality of circular cavities, the inner walls of the circular cavities are jointly and rotatably connected with a cross rod, the side wall of the cross bar in the circular cavity is fixedly connected with a plurality of fan blades, the lower end of the shell is provided with an air inlet communicated with the inner wall of the circular cavity, a one-way air outlet pipe is connected in the shell, an air outlet connected with the inner wall of the one-way air outlet pipe is arranged at the top in the circular cavity, the lower end of the shell is provided with a sliding plug cavity, the inner wall of the sliding plug cavity is rotationally connected with a lead screw, the side wall of the lead screw is in threaded connection with a lead screw nut, the lead screw is close to one end of the circular cavity and fixedly connected with one end of the cross rod, a strip-shaped cavity is formed in the side wall of the shell, and a first driving mechanism for driving the lead screw to rotate is installed in the strip-shaped cavity.
Preferably, the first driving mechanism comprises a sliding plate which is connected to the inner wall of the bar-shaped cavity in a sealing and sliding manner, the lower end of the sliding plate is elastically connected to the bottom of the bar-shaped cavity through a spring, an evaporation liquid is filled in a sealing space formed by the upper end of the sliding plate and the inner wall of the bar-shaped cavity, a heat conducting rod is connected to the upper portion of the inner wall of the bar-shaped cavity, a sliding plug is connected to the inner wall of the sliding plug in a sealing and sliding manner, the sliding plug is connected to the side wall of the lead screw in a sealing and sliding manner, the side wall of the sliding plug is fixedly connected to the side wall of the lead screw nut through a fixing rod, the.
Preferably, second actuating mechanism includes the baffle, the cooling chamber has been seted up to the casing lateral wall, the cooling chamber is located the setting of bar chamber top, bar intracavity wall is connected with cooling intracavity wall top through one-way jet-propelled pipe, the baffle is located the mouth of pipe cooperation of bar intracavity with one-way jet-propelled pipe, cooling intracavity wall below is connected with bar intracavity top through one-way feed liquor pipe.
Preferably, the part of the one-way air outlet pipe in the shell is arranged in a snake shape, and the side wall of the one-way air outlet pipe in the shell is provided with a plurality of air outlet holes.
The invention has the following beneficial effects:
1. by arranging the lead screw, the cross rod, the fan blade, the lead screw nut and the first driving mechanism, when the temperature of the asphalt surface is higher, the temperature of the evaporated liquid in the strip-shaped cavity rises, so that the evaporation capacity of the evaporated liquid is increased, the sliding plate is further pushed to slide downwards, the gas in the strip-shaped cavity is extruded into the sliding plug cavity, the pressure in the sliding plug cavity is increased, the sliding plug is further pushed to slide, the lead screw nut is further driven to slide, the lead screw rotates, the fan blade rotates, the toxic gas released from the asphalt surface is guided into the one-way gas outlet pipe through the gas inlet and the gas outlet, and the toxic gas is purified under the action of the purifying liquid in the shell, so that the pollution to the surrounding environment is avoided, the body health of constructors is influenced, meanwhile, the whole process;
2. by arranging the second driving mechanism, when the sliding plate slides downwards to drive the baffle to be separated from the orifice of the one-way gas ejector pipe, at the moment, gaseous evaporation liquid in the strip-shaped cavity enters the cooling cavity through the one-way gas ejector pipe, so that the pressure in the strip-shaped cavity is reduced, the sliding plate slides upwards under the action of the spring to suck gas in the sliding plug cavity into the strip-shaped cavity, the sliding plug drives the screw nut to slide to the original position, and then the screw rod is driven to rotate again, so that the fan blades rotate again, and the absorption of toxic gas is accelerated;
3. the gas-state evaporated liquid is liquefied into liquid-state evaporated liquid after entering the cooling cavity, the liquid-state evaporated liquid enters the strip-shaped cavity again through the one-way liquid inlet pipe, the evaporated liquid in the strip-shaped cavity is supplemented, the evaporated liquid in the strip-shaped cavity is increased again, then the sliding plate is pushed to slide downwards, the screw rod is further driven to rotate again, the fan blades are rotated again, the toxic gas is absorbed again, when the sliding plate slides downwards to drive the baffle plate to be separated from the pipe orifice of the one-way gas ejector pipe, the operation is repeated, the sliding plate continuously slides up and down on the inner wall of the strip-shaped cavity, the fan blades are further driven to rotate continuously, and the;
4. be snakelike setting through one-way outlet duct for toxic gas can be abundant with the contact of scavenging solution, improved the purification efficiency to toxic gas.
Drawings
FIG. 1 is a schematic structural diagram of a toxic gas collecting apparatus for asphalt pavement in a high temperature environment according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is an enlarged schematic view of the structure at B in fig. 1.
In the figure: the device comprises a shell 1, a circular cavity 2, a cross rod 3, fan blades 4, an air inlet 5, a one-way air outlet 6, an air outlet 7, a sliding plug cavity 8, a sliding plug 9, a screw rod 10, a screw rod nut 11, a strip-shaped cavity 12, a spring 13, a sliding plate 14, a connecting pipe 15, a heat conducting rod 16, a cooling cavity 17, a one-way air injection pipe 18, a one-way liquid inlet pipe 19, a baffle 20 and an air outlet 21.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Referring to fig. 1-3, a toxic gas collecting device for asphalt paving in a high temperature environment comprises a casing 1, a purifying liquid is arranged in the casing 1, a plurality of circular cavities 2 are arranged at the lower end of the casing 1, the inner walls of the circular cavities 2 are connected with a cross bar 3 in a rotating manner, the side wall of the cross bar 3 in the circular cavities 2 is fixedly connected with a plurality of fan blades 4, it should be noted that the rotation of the fan blades 4 plays a role in guiding flow, can collect the toxic gas on the asphalt, the lower end of the shell 1 is provided with an air inlet 5 communicated with the inner wall of the circular cavity 2, the shell 1 is internally connected with a one-way air outlet pipe 6, the part of the one-way air outlet pipe 6 positioned in the shell 1 is arranged in a snake shape, the side wall of the one-way air outlet pipe 6 positioned in the shell 1 is provided with a plurality of air outlet holes 21, the toxic gas can be fully contacted with the purifying liquid when being discharged from the gas outlet 21, so that the purifying efficiency of the toxic gas is improved;
the top is seted up at 2 interior tops in circular chamber and is offered gas outlets 7 with 6 wall connections of one-way outlet duct, and smooth stopper chamber 8 has been seted up to 1 lower extreme of casing, and smooth stopper chamber 8 inner wall rotates and is connected with lead screw 10, and lead screw 10 lateral wall threaded connection has lead screw nut 11, and lead screw 10 is close to the one end and the 3 one end fixed connection of horizontal pole in circular chamber 2, and casing 1 lateral wall has seted up bar chamber 12, installs the first actuating mechanism of drive screw 10 pivoted in the bar chamber 12.
The first driving mechanism comprises a sliding plate 14 which is connected with the inner wall of a strip-shaped cavity 12 in a sealing and sliding manner, the lower end of the sliding plate 14 is elastically connected with the bottom in the strip-shaped cavity 12 through a spring 13, a sealed space formed by the upper end of the sliding plate 14 and the inner wall of the strip-shaped cavity 12 is filled with an evaporation liquid, the evaporation liquid is an ether solution, the boiling point of the ether solution is 34.6 ℃, a heat conducting rod 16 is connected above the inner wall of the strip-shaped cavity 12, the inner wall of a sliding plug cavity 8 is connected with a sliding plug 9 in a sealing and sliding manner, the sliding plug 9 is connected with the side wall of a lead screw 10 in a sealing and sliding manner, the side wall of the sliding plug 9 is fixedly connected with the side wall of a lead screw, the pressure balance device is used for balancing the pressure change in the sliding plug cavity 8 when the sliding plug 9 slides, the bottom in the strip-shaped cavity 12 is connected with the inner wall of the sliding plug cavity 8 through a connecting pipe 15, and a second driving mechanism for driving the sliding plate 14 to slide up and down in a reciprocating manner is installed on the shell 1.
The second actuating mechanism includes baffle 20, cooling chamber 17 has been seted up to 1 lateral wall of casing, cooling chamber 17 is located the setting of bar shape chamber 12 top, bar shape chamber 12 inner wall is connected with cooling chamber 17 inner wall top through one-way jet pipe 18, baffle 20 and the mouth of pipe cooperation that one-way jet pipe 18 is located bar shape chamber 12, cooling chamber 17 inner wall below is connected with bar shape intracavity 12 interior top through one-way feed liquor pipe 19, it needs to explain, one-way jet pipe 18 only allows gaseous state evaporating liquid to get into cooling chamber 17 from bar shape chamber 12 in, one-way feed liquor pipe 19 only allows liquid evaporating liquid to get into bar shape chamber 12 from cooling chamber 17 in.
In the invention, when asphalt is paved, the shell 1 is fixedly connected to asphalt paving equipment and is close to the asphalt which is not paved, when the asphalt is paved, the temperature on the asphalt is higher, then the heat conducting rod 16 transmits the temperature on the asphalt into the strip-shaped cavity 12, the temperature on evaporated liquid in the strip-shaped cavity 12 is raised, the evaporation capacity of the evaporated liquid is increased, the pressure in the strip-shaped cavity 12 is increased, the sliding plate 14 is pushed to slide downwards, the gas in the strip-shaped cavity 12 is extruded into the sliding plug cavity 8 through the connecting pipe 15, the pressure in the sliding plug cavity 8 is increased, the sliding plug 9 is pushed to slide, the sliding plug 9 is driven to drive the screw nut 11 to slide through the fixing rod, the screw 10 is driven to rotate, the fan blades 4 fixedly connected to the side wall of the cross rod 3 are driven to rotate, and toxic gas released from the surface of the asphalt is guided into the one-way air outlet pipe 6 through the air inlet, and is discharged from the air outlet 21 to contact with the purification liquid in the shell 1, so that the toxic gas is effectively purified and then discharged;
when the sliding plate 14 slides downwards, the baffle plate 20 is driven to slide downwards, when the baffle plate 20 slides downwards to be separated from the orifice of the one-way gas injection pipe 18, at this time, gaseous evaporation liquid in the strip-shaped cavity 12 enters the cooling cavity 17 through the one-way gas injection pipe 18, so that the pressure in the strip-shaped cavity 12 is reduced, the sliding plate 14 slides upwards under the action of the spring 13, gas in the sliding plug cavity 8 is sucked into the strip-shaped cavity 12, so that the sliding plug 9 drives the screw nut 11 to slide to the original position, and further drives the screw rod 10 to rotate again, so that the fan blades 4 rotate again, meanwhile, the gaseous evaporation liquid enters the cooling cavity 17 and is liquefied again, and further the liquid evaporation liquid enters the strip-shaped cavity 12 again through the one-way liquid inlet pipe 19, the evaporation liquid in the strip-shaped cavity 12 is supplemented, the evaporation amount of the evaporation liquid in the strip-shaped cavity 12 is increased again, the sliding plate 14, absorb toxic gas once more, when slide 14 gliding drives baffle 20 and one-way jet-propelled pipe 18 mouth of pipe separation, can repeat above-mentioned operation again for slide 14 constantly slides from top to bottom at bar chamber 12 inner wall, makes smooth stopper 9 constantly slide back and forth at smooth stopper chamber 8 inner wall, makes lead screw 10 constantly rotate, and then drives flabellum 4 and constantly rotates, has increased the collection efficiency to toxic gas.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (4)
1. The toxic gas collecting device for asphalt paving in the high-temperature environment comprises a shell (1), wherein a purifying liquid is arranged in the shell (1), and is characterized in that a plurality of circular cavities (2) are formed in the lower end of the shell (1), the inner walls of the circular cavities (2) are jointly and rotatably connected with a cross rod (3), a plurality of fan blades (4) are fixedly connected to the side wall of the cross rod (3) in the circular cavities (2), an air inlet (5) communicated with the inner wall of the circular cavity (2) is formed in the lower end of the shell (1), a one-way air outlet pipe (6) is connected in the shell (1), an air outlet (7) connected with the inner wall of the one-way air outlet pipe (6) is formed in the top of the circular cavity (2), a sliding plug cavity (8) is formed in the lower end of the shell (1), a lead screw (10) is rotatably connected to the inner wall of the sliding plug cavity (, one end of the screw rod (10) close to the circular cavity (2) is fixedly connected with one end of the cross rod (3), a strip-shaped cavity (12) is formed in the side wall of the shell (1), and a first driving mechanism for driving the screw rod (10) to rotate is installed in the strip-shaped cavity (12).
2. The toxic gas collecting device for asphalt paving in a high-temperature environment according to claim 1, wherein the first driving mechanism comprises a sliding plate (14) which is connected with the inner wall of the bar-shaped cavity (12) in a sealing and sliding manner, the lower end of the sliding plate (14) is elastically connected with the bottom in the bar-shaped cavity (12) through a spring (13), a sealed space formed by the upper end of the sliding plate (14) and the inner wall of the bar-shaped cavity (12) is filled with evaporated liquid, a heat conducting rod (16) is connected above the inner wall of the bar-shaped cavity (12), the inner wall of the sliding plug cavity (8) is connected with a sliding plug (9) in a sealing and sliding manner, the sliding plug (9) is connected with the side wall of the lead screw (10) in a sealing and sliding manner, the side wall of the sliding plug (9) is fixedly connected with the side wall of the lead screw nut (11) through a fixing rod, and the, and a second driving mechanism for driving the sliding plate (14) to slide up and down in a reciprocating manner is arranged on the shell (1).
3. The toxic gas collecting device for asphalt paving in the high-temperature environment according to claim 2, wherein the second driving mechanism comprises a baffle plate (20), a cooling cavity (17) is formed in the side wall of the shell (1), the cooling cavity (17) is arranged above the strip-shaped cavity (12), the inner wall of the strip-shaped cavity (12) is connected with the upper portion of the inner wall of the cooling cavity (17) through a one-way gas injection pipe (18), the baffle plate (20) is matched with a pipe orifice of the one-way gas injection pipe (18) in the strip-shaped cavity (12), and the lower portion of the inner wall of the cooling cavity (17) is connected with the inner top portion of the strip-shaped cavity (12) through a one-way liquid inlet pipe (19).
4. The toxic gas collecting device for asphalt pavement in a high-temperature environment according to claim 1, wherein the part of the one-way gas outlet pipe (6) in the shell (1) is arranged in a serpentine shape, and a plurality of gas outlet holes (21) are formed in the side wall of the one-way gas outlet pipe (6) in the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995739.6A CN112090239A (en) | 2020-09-21 | 2020-09-21 | Toxic gas collecting equipment for asphalt paving in high-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995739.6A CN112090239A (en) | 2020-09-21 | 2020-09-21 | Toxic gas collecting equipment for asphalt paving in high-temperature environment |
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| Publication Number | Publication Date |
|---|---|
| CN112090239A true CN112090239A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010995739.6A Pending CN112090239A (en) | 2020-09-21 | 2020-09-21 | Toxic gas collecting equipment for asphalt paving in high-temperature environment |
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| CN (1) | CN112090239A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1066100A1 (en) * | 1998-02-25 | 2001-01-10 | STONE & WEBSTER ENGINEERING CORPORATION | Spent caustic pretreatment and enhanced oxidation process |
| WO2001058558A2 (en) * | 2000-02-14 | 2001-08-16 | Eco 3 Max Inc. | Process for removing volatile organic compounds from an air stream and apparatus therefor |
| CN104888596A (en) * | 2015-05-29 | 2015-09-09 | 安徽育安实验室装备有限公司 | Laboratory exhaust treatment device |
| CN107899398A (en) * | 2017-11-23 | 2018-04-13 | 宁波江北清纬环保科技有限公司 | A kind of purge of gas groove |
| CN107899344A (en) * | 2017-11-21 | 2018-04-13 | 陈超 | Glance coal cleaning equipment is used in a kind of solid asphalt fusing |
| CN210752019U (en) * | 2019-10-11 | 2020-06-16 | 天津梓煊浩柏科技有限公司 | Volatile organic compound processing apparatus |
| CN111387020A (en) * | 2020-04-16 | 2020-07-10 | 王振清 | Automatic agricultural product irrigation device at high temperature |
| CN111467983A (en) * | 2020-04-23 | 2020-07-31 | 胡国锋 | Efficient energy-saving type dissolving box for cosmetic processing |
| CN111520622A (en) * | 2020-04-30 | 2020-08-11 | 徐玲 | Outdoor LED light of kill mosquito worm heat dissipation type |
| CN111603917A (en) * | 2020-06-03 | 2020-09-01 | 杨汉顺 | Flue gas purification system for waste incineration |
-
2020
- 2020-09-21 CN CN202010995739.6A patent/CN112090239A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1066100A1 (en) * | 1998-02-25 | 2001-01-10 | STONE & WEBSTER ENGINEERING CORPORATION | Spent caustic pretreatment and enhanced oxidation process |
| WO2001058558A2 (en) * | 2000-02-14 | 2001-08-16 | Eco 3 Max Inc. | Process for removing volatile organic compounds from an air stream and apparatus therefor |
| CN104888596A (en) * | 2015-05-29 | 2015-09-09 | 安徽育安实验室装备有限公司 | Laboratory exhaust treatment device |
| CN107899344A (en) * | 2017-11-21 | 2018-04-13 | 陈超 | Glance coal cleaning equipment is used in a kind of solid asphalt fusing |
| CN107899398A (en) * | 2017-11-23 | 2018-04-13 | 宁波江北清纬环保科技有限公司 | A kind of purge of gas groove |
| CN210752019U (en) * | 2019-10-11 | 2020-06-16 | 天津梓煊浩柏科技有限公司 | Volatile organic compound processing apparatus |
| CN111387020A (en) * | 2020-04-16 | 2020-07-10 | 王振清 | Automatic agricultural product irrigation device at high temperature |
| CN111467983A (en) * | 2020-04-23 | 2020-07-31 | 胡国锋 | Efficient energy-saving type dissolving box for cosmetic processing |
| CN111520622A (en) * | 2020-04-30 | 2020-08-11 | 徐玲 | Outdoor LED light of kill mosquito worm heat dissipation type |
| CN111603917A (en) * | 2020-06-03 | 2020-09-01 | 杨汉顺 | Flue gas purification system for waste incineration |
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Application publication date: 20201218 |