CN111219815A - Factory building exhaust apparatus - Google Patents
Factory building exhaust apparatus Download PDFInfo
- Publication number
- CN111219815A CN111219815A CN201911206178.0A CN201911206178A CN111219815A CN 111219815 A CN111219815 A CN 111219815A CN 201911206178 A CN201911206178 A CN 201911206178A CN 111219815 A CN111219815 A CN 111219815A
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- water
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- pipe
- factory building
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Energy (AREA)
- Ventilation (AREA)
Abstract
The invention belongs to the technical field of ventilation equipment, in particular to a factory building exhaust device, which aims at the problems of simple structure, single function and no temperature and dust removal function, and provides a scheme. According to the invention, the controller controls the first motor installed in the ventilation box to drive the blowing fan to rotate, the second motor drives the exhaust fan to rotate, air in a flour mill is exhausted through the T-shaped exhaust funnel, water in the water storage tank is pressed into the circular round pipe through the water delivery pipe by the water suction pump and is sprayed out through the atomizing nozzle, the blowing fan can blow atomized water vapor into the mill, and meanwhile, the dust explosion danger of the flour mill is greatly reduced.
Description
Technical Field
The invention relates to the technical field of ventilation equipment, in particular to an exhaust device for a workshop.
Background
Wheat is used as staple food and plays an important role in daily life of people, according to the dietary habits of people, the wheat needs to be ground into flour, a flour mill prepares the wheat into flour through processes such as drying, rolling and the like in the production process, safety is a problem which is very important for every flour mill enterprise, and the flour is blown into a containing cylinder in a powder form in the production process. Therefore, once the accident hidden trouble occurs, the consequences are not imaginable.
However, the traditional small workshop flour mill usually cannot afford expensive dust removal machinery due to low capital, and the method usually adopted is to ventilate the factory building through an exhaust fan, so as to reduce the dust concentration in the factory building.
Disclosure of Invention
The invention provides a plant exhaust device based on the technical problems that the plant exhaust device is simple in design structure, single in function and free of a cooling and dedusting function.
The invention provides a factory building exhaust device, which comprises two sides of a factory building wall body, wherein ventilation holes are formed in the two sides of the factory building wall body, the interior of each ventilation hole is connected with a ventilation box through a bolt, the inner wall of each ventilation box is connected with a fan support frame through a bolt, one side of each fan support frame is connected with a first motor through a bolt, the other side of each fan support frame is connected with a blowing fan through a bearing, the blowing fan is in transmission connection with the first motor through a coupling, the outer wall of each ventilation box is connected with a dust screen through a bolt, one side of the inner wall of the factory building wall body is connected with a controller through a bolt, the other side of the inner wall of the factory building wall body is connected with a temperature sensor through a bolt, the other side of the inner wall of the factory building wall body is connected with a humidity sensor through a bolt, the, and there is T type aiutage inside the second through-hole through bolted connection, the waterwall has been pour all around at the top of roof, two there are two fan mounting bracket about T type aiutage axis symmetric distribution the inner wall of T type aiutage through bolted connection, there is the second motor one side of fan mounting bracket through bolted connection, the opposite side of fan mounting bracket is connected with the air discharge fan through the bearing, and the air discharge fan passes through the shaft coupling transmission with the second motor and is connected, there is the battery inner wall one side of factory building wall body through bolted connection, and the battery is located the scavenging box directly over.
Preferably, there is the storage water tank opposite side of factory building wall body through bolted connection, and there is the suction pump at the top of storage water tank through bolted connection, there is the drinking-water pipe one side of suction pump through flange joint, and there is a filter screen section of thick bamboo bottom the inside drinking-water pipe that extends of storage water tank through threaded connection.
Preferably, two there are two support frames about T type aide symmetric distribution at the top of T type aide through bolted connection, there is a field word mounting bracket at the top of support frame through bolted connection, and there is solar cell panel at the top of field word mounting bracket through bolted connection, solar cell panel passes through the wire with the battery and is connected.
Preferably, a third through hole is formed in one side of the water retaining wall, a downpipe is connected to the inner portion of the third through hole through a bolt, a three-way pipe is connected to the bottom of the downpipe through a clamping sleeve, a filter screen which is forty-five degrees to sixty degrees with a horizontal line is connected to the inner wall of the three-way pipe through a bolt, a drain pipe is connected to one end of the three-way pipe through a clamping sleeve, a second water inlet pipe is connected to the other end of the three-way pipe through a clamping sleeve, and the second water inlet pipe is connected with the water storage.
Preferably, a water inlet pipe is arranged on one side of the top of the water storage tank, and the top of the outer wall of the water inlet pipe is connected with a sealing cover through threads.
Preferably, the other sides of the two air exchanging boxes are connected with a round pipe through bolts, the outer wall of the round pipe is connected with atomizing nozzles distributed equidistantly through threads, the top of the round pipe is connected with a water delivery pipe through a clamping sleeve, and the water delivery pipe is connected with a water suction pump through a clamping sleeve.
Preferably, a water outlet is formed in one side of the outer wall of the water storage tank, and one side of the water outlet is connected with a water outlet valve through a pipeline.
Preferably, the bottom of the inner wall of the water storage tank is connected with a liquid level sensor through a bolt, and the liquid level sensor is connected with the controller through a lead.
Preferably, the controller is connected with the temperature sensor and the humidity sensor through signal lines, and the controller is connected with the storage battery through a lead.
Preferably, the controller is connected with the first motor, the second motor and the water pump through switches.
Compared with the prior art, the invention provides a plant exhaust device, which has the following beneficial effects:
1. this factory building exhaust apparatus, through setting up the air discharge fan, first motor, the second motor, the fan of blowing, the scavenge case, T type aiutage, the first motor of installation drives the fan of blowing rotation in the controller control scavenge case, the second motor drives the air discharge fan and rotates simultaneously, through the air escape in T type aiutage with the flour mill, water in the suction pump with the storage water tank passes through the raceway simultaneously and impresses in the circular pipe, through the atomizer blowout, the fan of blowing can blow in the factory building with the steam after the atomizing in, can cool down the dust removal to the factory building, greatly reduced the danger of flour factory building dust explosion simultaneously.
2. This factory building exhaust apparatus, through setting up the three-way pipe, the filter screen, the pipe in the water, the breakwater, the drain pipe, when raining, the rainwater flows into the three-way pipe through the pipe in the water, through the internally mounted filter screen at the three-way pipe of second inlet tube inflow storage water tank after the filter screen filters, can prevent debris entering storage water tank, when the storage water tank is filled with, the waterline reaches the filter screen bottom, rainwater accessible drain pipe discharge avoids taking place the jam, simultaneously with rainwater reuse, very resources are saved.
3. This factory building exhaust apparatus, through setting up solar cell panel, battery, temperature-sensing ware, humidity inductor, solar cell panel and storing in the battery through converting the light energy into the electric energy, the humiture in temperature-sensing ware and the humidity inductor real-time supervision factory building, through signal line transmission to controller, when reaching appointed numerical value, the first motor of controller control and suction pump are cooled down the dust removal to the factory building, very energy-concerving and environment-protective.
Drawings
FIG. 1 is a schematic front view of an exhaust device of a factory building according to the present invention;
FIG. 2 is a schematic sectional view of a water storage tank of an exhaust device of a plant according to the present invention;
FIG. 3 is a schematic structural view of a circular tube of the exhaust device of a factory building according to the present invention;
FIG. 4 is a schematic structural view of a three-way pipe of the exhaust device of the plant provided by the invention;
fig. 5 is a schematic structural view of an exhaust fan of an exhaust device of a factory building according to the present invention.
In the figure: the solar air conditioner comprises a blower fan 1, a ventilation box 2, a first motor 3, a fan support frame 4, a ventilation hole 5, a temperature sensor 6, a 7T-shaped exhaust funnel 8, an exhaust fan 9, a fan mounting frame 9, a second motor 10, a solar cell panel 11, a water retaining wall 12, a downpipe 13, a humidity sensor 14, a filter screen 15, a tee pipe 16, a drainpipe 17, a first water inlet pipe 18, a sealing cover 19, a water storage tank 20, a water outlet valve 21, a water outlet 22, a second water inlet pipe 23, a dust screen 24, a circular round pipe 25, an atomizing nozzle 26, a water pumping pipe 27, a liquid level sensor 28, a filter screen cylinder 29, a water pumping pump 30, a water delivery pipe 31, a support frame 32, a controller 33, a roof 34 and.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, an exhaust device for a factory building comprises two sides of a factory building wall body provided with ventilation holes 5, the interior of the ventilation holes 5 is connected with a ventilation box 2 through bolts, the inner wall of the ventilation box 2 is connected with a fan support frame 4 through bolts, one side of the fan support frame 4 is connected with a first motor 3 through bolts, the other side of the fan support frame 4 is connected with a blowing fan 1 through a bearing, the blowing fan 1 is in transmission connection with the first motor 3 through a coupling, the outer wall of the ventilation box 2 is connected with a dust screen 24 through bolts, one side of the inner wall of the factory building wall body is connected with a controller 33 through bolts, the other side of the inner wall of the factory building wall body is connected with a temperature sensor 6 through bolts, the other side of the inner wall of the factory building wall body is connected with a humidity sensor 14 through bolts, the top of the factory building wall body is connected with, and there are T type aiutage 7 inside the second through-hole through bolted connection, the waterwall 12 has been pour all around at the top of roof 34, there are two fan mounting bracket 9 about T type aiutage 7 axis symmetric distribution through bolted connection to the inner wall of two T type aiutages 7, there is second motor 10 one side of fan mounting bracket 9 through bolted connection, there is air discharge fan 8 opposite side of fan mounting bracket 9 through the bearing connection, and air discharge fan 8 passes through the shaft coupling transmission with second motor 10 and is connected, there is battery 35 inner wall one side of factory building wall through bolted connection, and battery 35 is located scavenging box 2 directly over.
In the invention, the other side of the wall body of the factory building is connected with a water storage tank 20 through bolts, the top of the water storage tank 20 is connected with a water suction pump 30 through bolts, one side of the water suction pump 30 is connected with a water suction pipe 27 through a flange, the bottom of the water suction pipe 27 extending inside the water storage tank 20 is connected with a filter screen cylinder 29 through threads, the tops of two T-shaped exhaust cylinders 7 are connected with two support frames 32 symmetrically distributed about the central axis of the T-shaped exhaust cylinders 7 through bolts, the tops of the support frames 32 are connected with a field-shaped mounting frame through bolts, the top of the field-shaped mounting frame is connected with a solar cell panel 11 through bolts, the solar cell panel 11 is connected with a storage battery 35 through a conducting wire, one side of a water retaining wall 12 is provided with a third through hole, the inside of the third through hole is connected with a water falling pipe 13 through bolts, the bottom of the water falling pipe 13 is connected, one end of the three-way pipe 16 is connected with a drain pipe 17 through a clamping sleeve, the other end of the three-way pipe 16 is connected with a second water inlet pipe 23 through a clamping sleeve, the second water inlet pipe 23 is connected with a water storage tank 20 through a flange, one side of the top of the water storage tank 20 is provided with a water inlet pipe 18, the top of the outer wall of the water inlet pipe 18 is connected with a sealing cover 19 through threads, the other sides of the two air exchange tanks 2 are connected with circular round pipes 25 through bolts, the outer walls of the circular round pipes 25 are connected with atomizing nozzles 26 which are distributed equidistantly through threads, the top of the circular round pipes 25 is connected with a water delivery pipe 31 through a clamping sleeve, the water delivery pipe 31 is connected with a water suction pump 30 through a clamping sleeve, one side of the outer wall of the water storage tank 20 is provided with a water outlet 22, one side, the controller 33 is connected with the temperature sensor 6 and the humidity sensor 14 through signal lines, the controller 33 is connected with the storage battery 35 through conducting wires, and the controller 33 is connected with the first motor 3, the second motor 10 and the water pump 30 through switches.
When the air purifier is used, the controller 33 with the model number of DATA-7311 controls the first motor 3 arranged in the ventilation box 2 to drive the blowing fan 1 to rotate, the second motor 10 drives the exhaust fan 8 to rotate, air in a flour mill is exhausted through the T-shaped exhaust funnel 7, meanwhile, the water in the water storage tank 20 is pressed into the circular round tube 25 through the water delivery pipe 31 by the water suction pump 30 and is sprayed out through the atomizing spray head 26, the blowing fan 1 can blow atomized water vapor into the factory building, the factory building can be cooled and dedusted, meanwhile, the danger of dust explosion of the flour factory building is greatly reduced, when raining, rainwater flows into the three-way pipe 16 through the downpipe 13, flows into the water storage tank 20 through the second water inlet pipe 23 after being filtered by the filter screen 15 arranged in the three-way pipe 16, sundries can be prevented from entering the water storage tank 20, when the water storage tank 20 is full, the water level, rainwater accessible drain pipe 17 discharges, avoid taking place to block up, recycle rainwater simultaneously, very resources are saved, solar cell panel 11 stores in battery 35 through converting light energy into electric energy, the humiture in the temperature-sensing ware 6 and the humidity inductor 14 real-time supervision factory building, pass through signal line transmission to controller 33, when reaching appointed numerical value, controller 33 control first motor 3 and suction pump 30 cool down the dust removal to the factory building, very energy-concerving and environment-protective.
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 considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The plant exhaust device comprises two sides of a plant wall body, and is characterized in that ventilation holes (5) are formed in the two sides of the plant wall body, a ventilation box (2) is connected to the inside of each ventilation hole (5) through bolts, a fan supporting frame (4) is connected to the inner wall of each ventilation box (2) through bolts, a first motor (3) is connected to one side of each fan supporting frame (4) through bolts, a blowing fan (1) is connected to the other side of each fan supporting frame (4) through a bearing, the blowing fan (1) is connected with the first motor (3) through a coupling transmission, a dust screen (24) is connected to the outer wall of each ventilation box (2) through bolts, a controller (33) is connected to one side of the inner wall of the plant wall body through bolts, a temperature sensor (6) is connected to the other side of the inner wall of the plant wall body through bolts, and a, the novel building wall is characterized in that the top of the building wall is connected with a roof (34) through bolts, two second through holes which are symmetrically distributed about the axis of the roof (34) are formed in the top of the roof (34), T-shaped exhaust pipes (7) are connected to the inner parts of the second through holes through bolts, a water retaining wall (12) is poured around the top of the roof (34), two fan mounting frames (9) which are symmetrically distributed about the axis of the T-shaped exhaust pipes (7) are connected to the inner walls of the T-shaped exhaust pipes (7) through bolts, one side of each fan mounting frame (9) is connected with a second motor (10) through bolts, the other side of each fan mounting frame (9) is connected with an exhaust fan (8) through a bearing, the exhaust fan (8) is connected with the second motor (10) through a coupler in a transmission manner, and a storage battery (35) is connected to one side, and the storage battery (35) is positioned right above the ventilation box (2).
2. The exhaust device for the factory building according to claim 1, wherein the other side of the wall of the factory building is connected with a water storage tank (20) through bolts, the top of the water storage tank (20) is connected with a water suction pump (30) through bolts, one side of the water suction pump (30) is connected with a water suction pipe (27) through a flange, and the bottom of the water suction pipe (27) extending inside the water storage tank (20) is connected with a filter screen cylinder (29) through threads.
3. The factory building exhaust device according to claim 1, characterized in that the tops of the two T-shaped exhaust pipes (7) are connected with two support frames (32) which are symmetrically distributed about the central axis of the T-shaped exhaust pipes (7) through bolts, the tops of the support frames (32) are connected with a square-shaped mounting frame through bolts, the tops of the square-shaped mounting frame are connected with a solar cell panel (11) through bolts, and the solar cell panel (11) is connected with a storage battery (35) through a wire.
4. The factory building exhaust device according to claim 1, characterized in that a third through hole is formed in one side of the water retaining wall (12), a downpipe (13) is connected to the inside of the third through hole through a bolt, a three-way pipe (16) is connected to the bottom of the downpipe (13) through a clamping sleeve, a filter screen (15) which is forty-five degrees to sixty degrees to the horizontal line is connected to the inner wall of the three-way pipe (16) through a bolt, a drain pipe (17) is connected to one end of the three-way pipe (16) through a clamping sleeve, a second water inlet pipe (23) is connected to the other end of the three-way pipe (16) through a clamping sleeve, and the second water inlet pipe (23) is connected to the water storage tank (.
5. The exhaust device for the factory building according to claim 2, wherein a water inlet pipe (18) is arranged on one side of the top of the water storage tank (20), and a sealing cover (19) is connected to the top of the outer wall of the water inlet pipe (18) through threads.
6. The factory building exhaust device according to claim 1, characterized in that the other sides of the two air exchange boxes (2) are connected with a round pipe (25) through bolts, the outer wall of the round pipe (25) is connected with atomizing nozzles (26) which are equidistantly distributed through threads, the top of the round pipe (25) is connected with a water pipe (31) through a clamping sleeve, and the water pipe (31) is connected with a water pump (30) through a clamping sleeve.
7. The exhaust device for the factory building according to claim 2, wherein a water outlet (22) is formed in one side of the outer wall of the water storage tank (20), and a water outlet valve (21) is connected to one side of the water outlet (22) through a pipeline.
8. The plant exhaust device according to claim 2, characterized in that a liquid level sensor (28) is connected to the bottom of the inner wall of the water storage tank (20) through a bolt, and the liquid level sensor (28) is connected with the controller (33) through a wire.
9. The factory building exhaust device according to claim 1, characterized in that the controller (33) is connected with the temperature sensor (6) and the humidity sensor (14) through signal lines, and the controller (33) is connected with the storage battery (35) through a lead.
10. Plant exhaust device according to claim 1, characterized in that the controller (33) is connected to the first electric motor (3), the second electric motor (10) and the suction pump (30) by means of switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206178.0A CN111219815A (en) | 2019-11-30 | 2019-11-30 | Factory building exhaust apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206178.0A CN111219815A (en) | 2019-11-30 | 2019-11-30 | Factory building exhaust apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111219815A true CN111219815A (en) | 2020-06-02 |
Family
ID=70825837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911206178.0A Withdrawn CN111219815A (en) | 2019-11-30 | 2019-11-30 | Factory building exhaust apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111219815A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917708A (en) * | 2021-10-19 | 2022-08-19 | 福建省晋南建设集团有限公司 | Concrete processing equipment for building construction |
-
2019
- 2019-11-30 CN CN201911206178.0A patent/CN111219815A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917708A (en) * | 2021-10-19 | 2022-08-19 | 福建省晋南建设集团有限公司 | Concrete processing equipment for building construction |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200602 |
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| WW01 | Invention patent application withdrawn after publication |