CN111332802A - Powder feeding system and using method thereof - Google Patents
Powder feeding system and using method thereof Download PDFInfo
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- CN111332802A CN111332802A CN202010351696.8A CN202010351696A CN111332802A CN 111332802 A CN111332802 A CN 111332802A CN 202010351696 A CN202010351696 A CN 202010351696A CN 111332802 A CN111332802 A CN 111332802A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/60—Devices for separating the materials from propellant gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/042—Granular material
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Abstract
The invention discloses a powder feeding system and a using method thereof, wherein the powder feeding system comprises a gas production area, a material blowing area and a control system; the gas production area comprises an air compressor, an outlet gas filtering part and a high-pressure gas storage tank; the air outlet filtering part comprises an air filter I and a water-gas separator; the high-pressure gas storage tank is connected with a gas outlet pipe; the blowing area comprises a powder tank, a powder bin and a tail gas filtering device; the powder tank is provided with a tank body air inlet pipe, a powder outlet pipe and a pressure relief opening I; the tank body air inlet pipe is matched with the tank body air outlet pipe; the powder outlet pipe is movably connected with the powder bin; the powder bin is provided with a pressure relief opening II; the tail gas filtering device is respectively and movably connected with the pressure relief port I and the pressure relief port II; the tank body air inlet pipe, the pressure relief port I and the pressure relief port II are respectively provided with a solenoid valve I, a solenoid valve II and a solenoid valve III; pressure sensors are arranged in the powder tank and the powder bin, and a material level sensor is further arranged in the powder bin. The invention reduces the noise and energy consumption of the equipment and can filter the pressure relief tail gas.
Description
Technical Field
The invention belongs to the technical field of powder storage equipment, and relates to a powder feeding system and a using method thereof.
Background
In concrete production and other industries, the transportation and storage of powder is essential. The powder is generally transported by a powder tank truck, and a matched vehicle-mounted air compressor is arranged on the traditional powder tank truck and can blow the fluidized powder in the powder tank into a powder bin. The vehicle-mounted air compressor is generally a diesel air compressor, the noise generated during working can reach 80 decibels, the equipment noise is overlarge, powder is generally placed outdoors, a large storage bin is often provided with a plurality of powder tank trucks for discharging simultaneously, and the large noise pollution is caused to the surrounding environment; meanwhile, the diesel oil air compressor has higher energy consumption, through measurement and calculation, the conventional powder tank truck needs to consume 0.16 liters of diesel oil for pumping one ton of powder, the consumption is about 0.96 yuan calculated according to the price of 6 yuan per liter of diesel oil, and the production cost of pumping the powder by adopting the diesel oil air compressor is higher than that of an electric air compressor according to the current oil price and long-term oil price expectation; and the problems of full storage or over-high pressure and the like often occur in the process of feeding and warehousing the powder; after powder is pumped, the tail gas discharged by equipment also has the problem of dust pollution.
Disclosure of Invention
The invention aims to provide a powder feeding system and a using method thereof aiming at the defects of the prior art, the device reduces the noise of powder warehousing sites, reduces energy consumption, can avoid the problem of over-high air pressure or full warehouse, and removes dust from tail gas.
In order to achieve the purpose, the invention adopts the following technical scheme:
a powder feeding system comprises a gas production area, a material blowing area and a control system; the gas production area comprises an air compressor, an air outlet filtering part and a high-pressure gas storage tank which are sequentially connected through a pipeline; the air outlet filtering part at least comprises three groups of air filters I and a group of water-gas separators which are sequentially connected; an outlet of the high-pressure gas storage tank is connected with a gas outlet pipe; the blowing area comprises a powder tank, a powder bin and a tail gas filtering device; the powder tank is arranged on a general powder tank car, the lower part of the powder tank is provided with a tank body air inlet pipe and a powder outlet pipe, and the top of the powder tank is provided with a pressure relief port I; one end of the tank body air inlet pipe is connected with the powder tank, and the other end of the tank body air inlet pipe is movably matched with the air outlet pipe; the powder outlet pipe is movably connected with the feeding position of the powder bin through a pipeline; the top of the powder bin is provided with a pressure relief opening II; the inlet of the tail gas filtering device is provided with a three-way pipe; the tail gas filtering device is respectively movably connected with the pressure relief port I and the pressure relief port II through a three-way pipe; the tank body air inlet pipe, the pressure relief port I and the pressure relief port II are respectively provided with a solenoid valve I, a solenoid valve II and a solenoid valve III; a pressure sensor is arranged in the powder tank, and a pressure sensor and a material level sensor are arranged in the powder bin; the control system is established based on a PLC; and the electromagnetic valve I, the electromagnetic valve II, the electromagnetic valve III, the pressure sensor and the material level sensor are all connected with a control system. The gas production area is arranged in a special factory building of a common factory, and the material blowing area is arranged outdoors; a shell for isolating noise is arranged outside the air compressor; an air filter element is arranged in the air filter I and is mainly used for isolating dust and the like in the air; the moisture separator can be used for removing moisture in the air; the air outlet pipe is connected with a factory room and extends to the blowing area; the tank body air inlet pipe can be movably connected with an air outlet pipe extending to the material blowing area, and compressed air is introduced into the powder tank from the gas production area; powder can enter the powder bin from the powder tank through the powder outlet pipe; the pressure relief port I and the pressure relief port II can respectively remove the pressure in the powder tank and the powder bin; a dust removal filter is arranged in the tail gas filtering device; the gas with powder particle smoke dust discharged from the pressure relief port I and the pressure relief port II enters the tail gas filtering device through the three-way pipe for dust removal, and then can be discharged into the air; the electromagnetic valve I, the electromagnetic valve II and the electromagnetic valve III respectively control the on-off of the air inlet pipe of the tank body, the pressure relief port I and the pressure relief port II; the pressure sensor can monitor the pressure in the powder tank and the powder bin in real time; the material level sensor is used for monitoring the material level in the powder bin; and filter screens are arranged on the pressure relief port I and the pressure relief port II.
As a further technical improvement, pressure gauges and valves are arranged at the inlet and the outlet of the air outlet filtering part and the high-pressure air storage tank; and the high-pressure gas storage tank is also provided with a safety valve, and the outlet of the high-pressure gas storage tank is provided with an air filter II. The pressure gauge is used for a user to observe the pressure in each device and the pipeline; the valve controls the on-off of the inlet and outlet pipelines of each device; the safety valve plays a safety protection role; and an air filter element is arranged in the air filter II and can filter compressed air exhausted from the high-pressure air storage tank.
As a further technical improvement, the air outlet pipe is movably connected with the air inlet pipe of the tank body, the pressure relief opening I is movably connected with the three-way pipe, and the powder outlet pipe is movably connected with the feeding position of the powder bin through hoses. The flexible pipe is connected to enable the device to be flexible and convenient to operate, the flexible pipe is connected when powder is put into a bin in the powder tank truck, and the powder can be removed after the powder is put into the bin.
As a further technical improvement, the control system is divided into a vehicle-mounted control system and a fixed control system; the vehicle-mounted control system is arranged on a powder tank truck loaded with a powder tank; the fixed control system is arranged on the powder bin; the electromagnetic valve I, the electromagnetic valve II and the pressure sensors arranged in the powder tank are all connected with a vehicle-mounted control system; the electromagnetic valve III, the material level sensor and a pressure sensor arranged in the powder bin are all connected with a fixed control system; and a wireless signal transmission module is arranged between the vehicle-mounted control system and the fixed control system. The pressure sensor monitors the pressure in the powder tank and the powder bin; the material level sensor monitors the material level in the powder bin; the bin pressure and material level information are converted into electric signals and transmitted to the control system, and the control system controls the on-off of the electromagnetic valve I, the electromagnetic valve II and the electromagnetic valve III according to the received electric signals; the wireless signal transmission module can enable the vehicle-mounted control system and the fixed control system to transmit signals to each other and serve as a control basis of the corresponding electromagnetic valve.
After the actual use of the inventor, the device measures and calculates that the power consumption of each ton of powder pumped by the device is 0.53 degrees, the energy consumption cost is about 0.32 yuan according to the electricity price of 0.6 yuan/degree, and the energy consumption cost is saved by 0.64 yuan compared with the energy consumption cost of using a diesel air compressor.
The use method of the powder feeding system comprises the following steps:
1) compressed air storage: the air compressor works to generate compressed air, the compressed air enters the air filter I and the water-gas separator in sequence, impurities and moisture in the air are filtered, and then the compressed air enters the high-pressure air storage tank to be stored at constant pressure;
2) powder warehousing: when powder warehousing operation is carried out, a powder tank truck filled with powder is driven to a blowing area, an air outlet pipe is connected with an air inlet pipe of a tank body, a powder outlet pipe is connected with an inlet of a powder bin, and a pressure relief port I is connected with a three-way pipe; when the equipment is operated, compressed air enters the powder tank from the high-pressure air storage tank through the air outlet pipe and the tank body air inlet pipe, so that pressure difference is generated inside and outside the tank body, and powder enters the powder bin through the powder outlet pipe along with air flow to realize the powder bin entering process;
3) pressure relief and tail gas treatment: pressure sensors in the powder tank and the powder bin monitor the air pressure in the tank in real time, convert air pressure value information into electric signals and transmit the electric signals to a control system; when the air pressure in the powder tank reaches a limit value, the control system controls the electromagnetic valve I to be closed, the electromagnetic valve II to be opened, air does not enter the powder tank, and the air in the powder tank enters the tail gas filtering device along with the pipeline through the three-way pipe; when the pressure in the powder bin reaches a limit value, the control system controls the electromagnetic valve III on the pressure relief opening II to be opened, and the gas in the powder bin enters the tail gas filtering device through the pipeline; the tail gas filtering device separates and filters powder brought out by the airflow, and clean air is discharged from the tail gas filtering device so as to avoid polluting the environment;
4) controlling the material level of the powder bin: a material level sensor in the powder bin monitors the material level in the powder bin in real time, converts the material level information into an electric signal and transmits the electric signal to a control system; when the powder accumulated in the powder bin reaches a limited bin level value, the control system closes the control electromagnetic valve I, so that the compressed air cannot enter the powder tank, the powder in the powder tank cannot enter the powder bin any more, and the bin level in the powder bin is kept in a proper range.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the device, the air compressor arranged indoors is adopted to provide compressed air for the powder tank truck, the arrangement of the traditional vehicle-mounted diesel air compressor is changed, and the noise of the powder warehousing operation site is greatly reduced.
2. According to the device, the electric air compressor is used for replacing the traditional diesel air compressor, so that the energy consumption of powder when the powder is put into a bin is reduced, and the production cost is reduced.
3. According to the invention, the tail gas discharged by pressure relief of the powder tank and the powder bin can be filtered and dedusted by the tail gas filtering device, so that powder dust particles are prevented from being discharged into the atmosphere to cause pollution.
4. The device can monitor the internal pressure of the powder tank and the powder bin through the cooperation of the pressure sensor, the material level sensor and each electromagnetic valve, automatically carry out pressure relief, and control the bin position of the powder bin.
Drawings
FIG. 1 is a schematic diagram of a gas producing zone configuration.
FIG. 2 is a schematic structural diagram of a blowing zone.
Reference numerals: 1-air compressor, 2-air outlet filtering part, 3-high pressure air storage tank, 4-powder tank, 5-powder bin, 6-air filter I, 7-moisture separator, 8-air outlet pipe, 9-tank air inlet pipe, 10-powder outlet pipe, 11-tail gas filtering device, 12-three-way pipe, 13-pressure gauge, 14-valve, 15-safety valve, 16-air filter II, 17-electromagnetic valve III, 18-material level sensor, 19-pressure relief port I, 20-pressure relief port II, 21-electromagnetic valve I, 22-electromagnetic valve II.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1-2, a powder feeding system comprises a gas production area, a blowing area and a control system; the gas production area comprises an air compressor 1, an air outlet filtering part 2 and a high-pressure gas storage tank 3 which are sequentially connected through a pipeline; the outlet air filtering part 2 at least comprises three groups of air filters I6 and a group of water-gas separators 7 which are sequentially connected; an outlet pipe 8 is connected with the outlet of the high-pressure gas storage tank 3; the blowing area comprises a powder tank 4, a powder bin 5 and a tail gas filtering device 11; the powder tank 4 is arranged on a common powder tank car, the lower part of the powder tank is provided with a tank body air inlet pipe 9 and a powder outlet pipe 10, and the top of the powder tank is provided with a pressure relief port I19; one end of the tank body air inlet pipe 9 is connected with the powder tank 4, and the other end is movably matched with the air outlet pipe 8; the powder outlet pipe 10 is movably connected with the feeding position of the powder bin 5 through a pipeline; the top of the powder bin 5 is provided with a pressure relief opening II 20; the inlet of the tail gas filtering device 11 is provided with a three-way pipe 12; the tail gas filtering device 11 is respectively movably connected with a pressure relief port I19 and a pressure relief port II 20 through a three-way pipe 12; the tank body air inlet pipe 9, the pressure relief port I19 and the pressure relief port II 20 are respectively provided with an electromagnetic valve I21, an electromagnetic valve II 22 and an electromagnetic valve III 17; a pressure sensor is arranged in the powder tank 4, and a pressure sensor and a material level sensor 18 are arranged in the powder bin 5; the control system is established based on a PLC; and the electromagnetic valve I21, the electromagnetic valve II 22, the electromagnetic valve III 17, the pressure sensor and the material level sensor 18 are all connected with a control system. The gas production area is arranged in a special factory building of a common factory, and the material blowing area is arranged outdoors; a casing for isolating noise is arranged outside the air compressor 1; an air filter element is arranged in the air filter I6 and is mainly used for isolating dust and the like in the air; the moisture separator 7 can be used for removing moisture in the air; the air outlet pipe 8 is connected with a factory and extends to the blowing area; the tank body air inlet pipe 9 can be movably connected with an air outlet pipe 8 extending to the blowing area, and compressed air is introduced into the powder tank 4 from the air production area; powder can enter the powder bin 5 from the powder tank 4 through the powder outlet pipe 10; the pressure relief port I19 and the pressure relief port II 20 can respectively remove the pressure in the powder tank 4 and the powder bin 5; a dust removal filter is arranged in the tail gas filtering device 11; the gas with powder particle smoke dust discharged from the pressure relief port I19 and the pressure relief port II 20 enters the tail gas filtering device 11 through the three-way pipe 12 for dust removal, and can be discharged into the air; the electromagnetic valve I21, the electromagnetic valve II 22 and the electromagnetic valve III 17 respectively control the on-off of the tank body air inlet pipe 9, the pressure relief port I19 and the pressure relief port II 20; the pressure sensor can monitor the pressure in the powder tank 4 and the powder bin 5 in real time; the material level sensor is used for monitoring the material level in the powder bin 5; and filter screens are arranged on the pressure relief port I19 and the pressure relief port II 20.
The control system is divided into a vehicle-mounted control system and a fixed control system; the vehicle-mounted control system is arranged on a powder tank truck loaded with a powder tank 4; the fixed control system is arranged on the powder bin 5; the electromagnetic valve I21, the electromagnetic valve II 22 and the pressure sensors arranged in the powder tank 4 are all connected with a vehicle-mounted control system; the electromagnetic valve III 17, the material level sensor 18 and a pressure sensor arranged in the powder bin 5 are all connected with a fixed control system; and a wireless signal transmission module is arranged between the vehicle-mounted control system and the fixed control system. The pressure sensors monitor the pressure in the powder tank 4 and the powder bin 5; the material level sensor monitors the material level in the powder bin 5; the bin pressure and the bin level information are converted into electric signals to be transmitted to the control system, and the control system controls the on-off of the electromagnetic valve I21, the electromagnetic valve II 22 and the electromagnetic valve III 17 according to the received electric signals; the wireless signal transmission module can enable the vehicle-mounted control system and the fixed control system to transmit signals to each other and serve as a control basis of the corresponding electromagnetic valve.
The using method of the invention is as follows:
compressed air storage: the air compressor 1 works to generate compressed air, the compressed air sequentially enters the air filter I6 and the water-gas separator 7, impurities and moisture in the air are filtered, and then the compressed air enters the high-pressure air storage tank 3 to be stored at constant pressure;
powder warehousing: when powder warehousing operation is carried out, a powder tank truck filled with powder is driven to a blowing area, an air outlet pipe 8 is connected with an air inlet pipe 9 of a tank body, a powder outlet pipe 10 is connected with an inlet of a powder bin 5, and a pressure relief opening I19 is connected with a three-way pipe 12; when the equipment is operated, compressed air enters the powder tank 4 from the high-pressure air storage tank 3 through the air outlet pipe 8 and the tank body air inlet pipe 9, so that pressure difference is generated between the inside and the outside of the tank body, and powder enters the powder bin 5 through the powder outlet pipe 10 along with air flow to realize the powder warehousing process;
pressure relief and tail gas treatment: pressure sensors in the powder tank 4 and the powder bin 5 monitor the air pressure in the tanks in real time, and convert air pressure value information into electric signals to be transmitted to a control system; when the air pressure in the powder tank 4 reaches a limit value, the control system controls the electromagnetic valve I21 to be closed, the electromagnetic valve II 22 to be opened, air is not fed into the powder tank 4, and the air in the powder tank 4 enters the tail gas filtering device 11 along with a pipeline through the three-way pipe 12; when the pressure in the powder bin 5 reaches a limit value, the control system controls the electromagnetic valve III 17 on the pressure relief opening II 20 to be opened, and the gas in the powder bin 5 enters the tail gas filtering device 11 through a pipeline; the tail gas filtering device 11 separates and filters the powder brought out by the airflow, and clean air is discharged from the tail gas filtering device 11 so as to avoid polluting the environment;
controlling the material level of the powder bin: a material level sensor in the powder bin 5 monitors the material level in the powder bin 5 in real time, converts the material level information into an electric signal and transmits the electric signal to a control system; when the powder accumulated in the powder bin 5 reaches a limited bin level value, the control system controls the electromagnetic valve I21 to be closed, so that the compressed air cannot enter the powder tank 4, and the powder in the powder tank 4 cannot enter the powder bin 5 any more, so that the bin level in the powder bin 5 is kept in a proper range.
Example 2:
this example differs from example 1 in that: the inlet and the outlet of the outlet gas filtering part 2 and the high-pressure gas storage tank 3 are respectively provided with a pressure gauge 13 and a valve 14; and the high-pressure air storage tank 3 is also provided with a safety valve 15, and an outlet of the high-pressure air storage tank is provided with an air filter II 16. The pressure gauge 13 is used for a user to observe the pressure in each device and pipeline; the valve 14 controls the on-off of the inlet and outlet pipelines of each device; the safety valve 15 plays a safety protection role; an air filter element is arranged in the air filter II 16 and can filter compressed air discharged from the high-pressure air storage tank 3.
The method of use of this example is the same as example 1.
Example 3:
this example differs from example 2 in that: the air outlet pipe 8 is movably connected with the air inlet pipe 9 of the tank body, the pressure relief port I19 is movably connected with the three-way pipe 12, and the powder outlet pipe 10 is movably connected with the feeding position of the powder bin 5 through hoses. The flexible pipe is connected to enable the device to be flexible and convenient to operate, the flexible pipe is connected when powder is put into a bin in the powder tank truck, and the powder can be removed after the powder is put into the bin.
The method of use of this example is the same as example 1.
Example 4:
this example differs from example 3 in that: the inlet and the outlet of the outlet gas filtering part 2 and the high-pressure gas storage tank 3 are respectively provided with a pressure gauge 13 and a valve 14; and the high-pressure air storage tank 3 is also provided with a safety valve 15, and an outlet of the high-pressure air storage tank is provided with an air filter II 16. The pressure gauge 13 is used for a user to observe the pressure in each device and pipeline; the valve 14 controls the on-off of the inlet and outlet pipelines of each device; the safety valve 15 plays a safety protection role; an air filter element is arranged in the air filter II 16 and can filter compressed air discharged from the high-pressure air storage tank 3. The air outlet pipe 8 is movably connected with the air inlet pipe 9 of the tank body, the pressure relief port I19 is movably connected with the three-way pipe 12, and the powder outlet pipe 10 is movably connected with the feeding position of the powder bin 5 through hoses. The flexible pipe is connected to enable the device to be flexible and convenient to operate, the flexible pipe is connected when powder is put into a bin in the powder tank truck, and the powder can be removed after the powder is put into the bin.
The method of use of this example is the same as example 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (5)
1. A powder feeding system comprises a gas production area, a material blowing area and a control system; the method is characterized in that: the gas production area comprises an air compressor (1), an outlet gas filtering part (2) and a high-pressure gas storage tank (3) which are sequentially connected through a pipeline; the outlet air filtering part (2) at least comprises three groups of air filters I (6) and a group of water-gas separators (7) which are connected in sequence; an outlet of the high-pressure gas storage tank (3) is connected with a gas outlet pipe (8); the blowing area comprises a powder tank (4), a powder bin (5) and a tail gas filtering device (11); the powder tank (4) is arranged on a common powder tank car, the lower part of the powder tank is provided with a tank body air inlet pipe (9) and a powder outlet pipe (10), and the top of the powder tank is provided with a pressure relief port I (19); one end of the tank body air inlet pipe (9) is connected with the powder tank (4), and the other end of the tank body air inlet pipe is movably matched with the air outlet pipe (8); the powder outlet pipe (10) is movably connected with the feeding position of the powder bin (5) through a pipeline; the top of the powder bin (5) is provided with a pressure relief opening II (20); the inlet of the tail gas filtering device (11) is provided with a three-way pipe (12); the tail gas filtering device (11) is respectively movably connected with the pressure relief port I (19) and the pressure relief port II (20) through a three-way pipe (12); the tank body air inlet pipe (9), the pressure relief port I (19) and the pressure relief port II (20) are respectively provided with an electromagnetic valve I (21), an electromagnetic valve II (22) and an electromagnetic valve III (17); a pressure sensor is arranged in the powder tank (4), and a pressure sensor and a material level sensor (18) are arranged in the powder bin (5); the control system is established based on a PLC; and the electromagnetic valve I (21), the electromagnetic valve II (22), the electromagnetic valve III (17), the pressure sensor and the material level sensor (18) are all connected with a control system.
2. The powder feeding system of claim 1, wherein: the inlet and the outlet of the outlet gas filtering part (2) and the high-pressure gas storage tank (3) are respectively provided with a pressure gauge (13) and a valve (14); the high-pressure air storage tank (3) is also provided with a safety valve (15), and an outlet is provided with an air filter II (16).
3. The powder feeding system of claim 1, wherein: the air outlet pipe (8) is movably connected with the air inlet pipe (9) of the tank body, the pressure relief port I (19) is connected with the three-way pipe (12), and the powder outlet pipe (10) is movably connected with the feeding position of the powder bin (5) through hoses.
4. The powder feeding system of claim 1, wherein: the control system is divided into a vehicle-mounted control system and a fixed control system; the vehicle-mounted control system is arranged on a powder tank truck loaded with a powder tank (4); the fixed control system is arranged on the powder bin (5); the pressure sensors arranged in the electromagnetic valve I (21), the electromagnetic valve II (22) and the powder tank (4) are all connected with a vehicle-mounted control system; the electromagnetic valve III (17), the material level sensor (18) and a pressure sensor arranged in the powder bin (5) are all connected with a fixed control system; and a wireless signal transmission module is arranged between the vehicle-mounted control system and the fixed control system.
5. The method of using a powder loading system according to any of claims 1 to 4, wherein: the method comprises the following steps:
1) compressed air storage: the air compressor (1) works to generate compressed air, the compressed air sequentially enters the air filter I (6) and the water-gas separator (7), impurities and moisture in the air are filtered, and then the compressed air enters the high-pressure air storage tank (3) to be stored at constant pressure;
2) powder warehousing: when powder warehousing operation is carried out, a powder tank truck filled with powder is driven to a blowing area, an air outlet pipe (8) is connected with an air inlet pipe (9) of a tank body, a powder outlet pipe (10) is connected with an inlet of a powder bin (5), and a pressure relief opening I (19) is connected with a three-way pipe (12); when the equipment is operated, compressed air enters the powder tank (4) from the high-pressure air storage tank (3) through the air outlet pipe (8) and the tank body air inlet pipe (9), so that pressure difference is generated between the inside and the outside of the tank body, and powder enters the powder bin (5) through the powder outlet pipe (10) along with air flow to realize the powder warehousing process;
3) pressure relief and tail gas treatment: pressure sensors in the powder tank (4) and the powder bin (5) monitor the air pressure in the tanks in real time, and convert air pressure value information into electric signals to be transmitted to a control system; when the air pressure in the powder tank (4) reaches a limit value, the control system controls the electromagnetic valve I (21) to be closed, the electromagnetic valve II (22) to be opened, air is not fed into the powder tank (4), and the air in the powder tank (4) enters the tail gas filtering device (11) along with a pipeline through the three-way pipe (12); when the pressure in the powder bin (5) reaches a limit value, the control system controls the electromagnetic valve III (17) on the pressure relief opening II (20) to be opened, and the gas in the powder bin (5) enters the tail gas filtering device (11) through a pipeline; the tail gas filtering device (11) separates and filters powder brought out by the airflow, and clean air is discharged from the tail gas filtering device (11) so as to avoid polluting the environment;
4) controlling the material level of the powder bin: a material level sensor in the powder bin (5) monitors the material level in the powder bin (5) in real time, and converts material level information into an electric signal to be transmitted to a control system; when the powder accumulated in the powder bin (5) reaches a limited bin level value, the control system closes the control electromagnetic valve I (21), so that compressed air cannot enter the powder tank (4), and the powder in the powder tank (4) cannot continue to enter the powder bin (5) at the moment, thereby ensuring that the bin level in the powder bin (5) is kept in a proper range.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010351696.8A CN111332802A (en) | 2020-04-28 | 2020-04-28 | Powder feeding system and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010351696.8A CN111332802A (en) | 2020-04-28 | 2020-04-28 | Powder feeding system and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112278868A (en) * | 2020-07-17 | 2021-01-29 | 建德华明高纳新材料有限公司 | Aluminum oxide air compressor linkage gas transmission device for lithium battery diaphragm and linkage method |
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2020
- 2020-04-28 CN CN202010351696.8A patent/CN111332802A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112278868A (en) * | 2020-07-17 | 2021-01-29 | 建德华明高纳新材料有限公司 | Aluminum oxide air compressor linkage gas transmission device for lithium battery diaphragm and linkage method |
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