A storage system for storing combustible powder and a control method thereof

Abstract

The application discloses a storage system for storing flammable powder and a control method thereof, and comprises a flammable powder storage device. The flammable powder storage device comprises a storage container, and water is stored in the middle and lower part of the storage container. A floating plate floats on the water surface, and the floating plate is composed of a plurality of floating plate units. Any two adjacent floating plate units are connected through elastic sheets, so that the floating plate units can self-adaptively float up and down along with the fluctuation of the lower liquid surface. A disturbance end of a disturbance mechanism is below the liquid surface, and is used for disturbing the water flow, so that the liquid surface fluctuates. When a flammable powder feeding device feeds the flammable powder into the storage container through a feeding pipe at the top of the storage container, the disturbance mechanism is started to disturb the water flow, so that the floating plate units float up and down, and the flammable powder above the floating plate is shaken and spread, thereby providing an effective solution for the storage of flammable powder in the industry.

Description

Technical Field

[0001] This invention relates to the field of flammable powder storage technology, and in particular to a storage system and control method for storing flammable powder. Background Technology

[0002] The graphite precursor for lithium-ion battery anodes is typically made by mechanically pulverizing petroleum coke into powder with a median particle size (D50) of 5-30 μm. This powder (coke powder) is usually packaged in bulk bags. Coke powder is flammable, and there is a risk of smoldering during long-term storage and transportation. Therefore, coke powder requires extremely careful storage. Smoldering can cause both property damage and environmental pollution. Due to the large quantities of coke powder stored, once smoldering occurs, it is difficult to extinguish using traditional methods; one can only wait for the coke powder to burn out completely, which takes a long time.

[0003] To solve the above technical problems, the ideal condition is to store coke powder in tanks or containers filled with water. Because coke powder has a low density, it can float on the water surface. With the help of external force, water vapor can diffuse in the coke powder, which can effectively prevent the coke powder from smoldering.

[0004] However, how to put coke powder into tanks or containers has become an industry problem. If the traditional method is used, the ton bags are opened, the top of the tank or container is opened, and the coke powder is poured directly into the tank or container. A large amount of coke powder will float in the air, polluting the air. Moreover, the coke powder is in full contact with the air and is prone to smoldering later. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a storage system and control method for storing flammable powders. This system overcomes the problems of existing technologies by introducing the flammable powder from one side of the top of the storage container via a feed pipe instead of pouring it in, thus avoiding dust pollution. Combined with a disturbance mechanism and a float plate, the float plate moves up and down using the water's movement to agitate and spread the flammable powder above it, preventing it from accumulating below the feed pipe. The water also reduces the probability of smoldering, providing an effective solution for the storage of flammable powders in the industry.

[0006] The present invention provides a storage system for storing flammable powder, including a flammable powder storage device;

[0007] The flammable powder storage device includes a water-containing storage container, a float plate located inside the storage container and floating on the liquid surface, and a disturbance mechanism for agitating the water.

[0008] The storage container is detachably fitted with a top cover, which has a vent and a filter screen.

[0009] The top of the container wall of the storage container is provided with a feed pipe for connection to a flammable powder conveying device;

[0010] The float plate is located below the feed pipe, and the four edges of the float plate are slidably connected to the container wall. The float plate is used to carry flammable powder entering the storage container.

[0011] The float plate is composed of multiple float plate units. Any two adjacent float plate units are connected by an elastic sheet. The elastic sheet seals the gap between the two adjacent float plate units, and the float plate unit can adaptively float up and down with the fluctuation of the liquid surface below.

[0012] When feeding material into the storage container, the agitation mechanism activates to agitate the water flow, causing the float to float up and down, thereby vibrating and spreading the flammable powder above the float.

[0013] In one of the alternative technical solutions, the elastic sheet is a rubber connecting sheet.

[0014] In one of the alternative technical solutions, the disturbance mechanism includes an impeller located in the storage container and a motor for driving the impeller to rotate, the motor being connected to the storage container and the impeller being connected to the shaft of the motor.

[0015] In one of the alternative technical solutions, a level gauge is provided on the inner surface of the container wall, and the level gauge is located below the feed pipe;

[0016] The level gauge and the disturbance mechanism are respectively connected to the control unit of the storage system via signal connection.

[0017] When the level of flammable powder in the storage container is higher than the level gauge, the level gauge sends a first signal to the control unit, and the control unit controls the disturbance mechanism to operate.

[0018] When the level of flammable powder in the storage container is lower than the level gauge, the level gauge sends a second signal to the control unit, and the control unit controls the disturbance mechanism to stop operating.

[0019] In one of the alternative technical solutions, the storage system includes a water supply device and a drainage device;

[0020] The water supply device includes a water supply tank, a water supply pipe, and a water supply pump connected in series on the water supply pipe. One end of the water supply pipe is connected to the outlet of the water supply tank, and the other end is connected to the inlet of the storage container.

[0021] The drainage device includes a drain pipe and a drain pump connected in series with the drain pipe, the drain pipe being connected to the drain outlet of the storage container.

[0022] In one of the alternative technical solutions, two feed pipes are connected to the top of the container wall, the two feed pipes are arranged on opposite sides of the container wall, and each feed pipe is connected to a set of flammable powder conveying devices.

[0023] In one of the alternative technical solutions, the storage system includes a fire prevention and extinguishing device;

[0024] The fire prevention and extinguishing device includes a lifting drive mechanism and a heat dissipation plug connected to the lifting drive mechanism;

[0025] The lifting drive mechanism is fixedly installed and suspended above the top cover. When the lifting drive mechanism is in its initial state, the heat dissipation rod is suspended above the top cover.

[0026] The top cover is provided with a through hole for the heat dissipation rod to pass through at the position corresponding to the position of the heat dissipation rod;

[0027] The floating plate unit is provided with a through hole for the heat dissipation plug to pass through at the position corresponding to the heat dissipation plug;

[0028] When the fire prevention and extinguishing device is in the fire prevention and extinguishing state, the lifting drive mechanism drives the heat dissipation rod downward through the flammable powder until it is inserted into the water and then moves upward to carry water and / or water vapor into the flammable powder.

[0029] In one of the alternative technical solutions, the float plate with the single-unit through-hole is connected to the bottom plate of the storage container via a connecting rod.

[0030] In one of the alternative technical solutions, a scraper bar is provided in and / or below the top cover through hole;

[0031] The insert rod scraper includes two elastic scraper blades arranged opposite to each other;

[0032] When the insert scraper is in its initial state, the two elastic scrapers contact and seal the top cover through hole.

[0033] The present invention also provides a control method for a storage system, comprising the following steps:

[0034] S1: Feeding material into the storage container;

[0035] S2: Activate the disturbance mechanism to disturb the water flow, causing the float to float up and down, thereby vibrating and spreading the flammable powder above the float.

[0036] S2: Complete feeding and shut down the disturbance mechanism.

[0037] The above technical solution has the following beneficial effects:

[0038] This invention provides a storage system and control method for storing flammable powder, including a flammable powder storage device. The flammable powder storage device includes a storage container, the lower part of which stores water. A float plate floats on the water surface, and the float plate is composed of multiple individual float plates. Any two adjacent float plates are connected by an elastic sheet, allowing the float plates to adaptively float up and down with the fluctuations of the liquid surface below. A disturbance mechanism has its disturbance end below the liquid surface, used to agitate the water flow, causing the liquid surface to fluctuate. When the flammable powder conveying device supplies material to the storage container through a conveying pipe at the top of the storage container, the disturbance mechanism is activated to agitate the water flow, causing the individual float plates to float up and down, thereby vibrating and spreading the flammable powder above the float plates.

[0039] Therefore, this invention provides a storage system and control method for storing flammable powder, which overcomes the problems of existing technologies. It inputs the flammable powder from one side of the top of the storage container via a conveying pipe instead of pouring it in, avoiding the environmental pollution caused by dust spillage. Combined with a disturbance mechanism and a float, the float moves up and down using the water surface to vibrate and spread the flammable powder above it, preventing it from accumulating below the conveying pipe. The water also reduces the probability of smoldering, providing an effective solution for the storage of flammable powder in the industry. Attached Figure Description

[0040] The disclosure of this invention will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings:

[0041] Figure 1 This is a schematic diagram of a storage system provided in an embodiment of the present invention;

[0042] Figure 2 This is a cross-sectional view of a storage system provided in an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram showing the accumulation of flammable powder on the side during the initial feeding stage.

[0044] Figure 4 This is a schematic diagram showing how flammable powder spreads on a floating board after vibration.

[0045] Figure 5 This is a cross-sectional view of the floating platform along the horizontal plane.

[0046] Figure 6 This is a partial cross-sectional view of the floating platform along the vertical direction.

[0047] Figure 7 A schematic diagram showing the vertical movement of a single floating platform.

[0048] Figure 8 A schematic diagram of a storage system provided in another embodiment of the present invention;

[0049] Figure 9 A schematic diagram showing a floating plate with through holes on the plate;

[0050] Figure 10 A schematic diagram showing a connecting rod connected to the lower end of a float unit with individual through-holes;

[0051] Figure 11 A schematic diagram showing the downward movement of the heat dissipation plug to insert flammable powder;

[0052] Figure 12 This is a diagram showing the cooling rod being moved downwards and inserted into the water.

[0053] Figure 13 A schematic diagram showing a scraper with an insert rod in the through hole of the top cover;

[0054] Figure 14 This is a cross-sectional view of the heat sink. Detailed Implementation

[0055] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0056] like Figure 1-7 As shown, an embodiment of the present invention provides a storage system for storing flammable powder, including a flammable powder storage device 100.

[0057] The flammable powder storage device 100 includes a water-containing storage container 1, a float 2 located inside the storage container 1 and floating on the liquid surface, and a disturbance mechanism 3 for agitating the water.

[0058] The storage container 1 is detachably fitted with a top cover 11, and the top cover 11 is provided with a vent 111, and a filter screen 14 is provided in the vent 111.

[0059] The top of the container wall 12 of the storage container 1 is provided with a feed pipe 13 for connection to the flammable powder conveying device 200.

[0060] The float plate 2 is located below the feed pipe 13. The four edges of the float plate 2 are slidably connected to the container wall 12. The float plate 2 is used to carry the flammable powder entering the storage container 1.

[0061] The float 2 is composed of multiple float units 21. Any two adjacent float units 21 are connected by an elastic sheet 22. The elastic sheet 22 seals the gap between the two adjacent float units 21, and the float unit 21 can adaptively float up and down with the rise and fall of the liquid surface below.

[0062] When feeding material into the storage container 1, the agitation mechanism 3 activates to agitate the water flow, causing the float unit 21 to float up and down, thereby vibrating and spreading the flammable powder above the float 2.

[0063] The storage system provided by this invention is mainly used for storing flammable powder, which is generally coke powder, and its density is lower than that of water.

[0064] The storage system includes a flammable powder storage device 100, to which flammable powder can be conveyed via a flammable powder conveying device 200. The flammable powder conveying device 200 may be a screw conveyor or other conveying mechanism.

[0065] The flammable powder storage device 100 includes a storage container 1, a float 2, and a disturbance mechanism 3. The storage container 1 can be box-shaped or tank-shaped, and its volume can be determined according to the volume of flammable powder to be stored.

[0066] The lower middle part of the storage container 1 contains water, preferably not exceeding 1 / 3 of the height of the storage container 1, to ensure that there is enough space above to store flammable powder.

[0067] The storage container 1 has a top cover 11, which is detachably connected to the container wall 12 via pins, buckles, etc. The top cover 11 has a vent 111, and a filter screen 14 is installed in the vent 111. The vent 111 communicates with the outside. On one hand, the vent 111 is used to maintain the pressure balance inside the storage container 1; on the other hand, when the flammable powder heats up or smolders, the generated gas can be quickly discharged through the vent 111, preventing excessive pressure in the storage container 1 from affecting structural safety.

[0068] A feed pipe 13 is provided at the top of the container wall 12, which is used to connect to the discharge end of the flammable powder conveying device 200 to supply material to the storage container 1. The feed pipe 13 can be located directly below the top cover 11. The discharge port of the feed pipe 13 can extend partially into the storage container 1 to feed material as far towards the center as possible. If necessary, a check valve can be installed in the feed pipe 13.

[0069] The float 2 floats on the water surface, and its four edges are slidably connected to the container wall 12. The float 2 as a whole can float up and down with the liquid surface.

[0070] Float 2 can be made of fire-resistant floating sheet or floating material, which can float on the water surface. The flammable powder is placed on float 2 to separate it from the water, reducing or preventing the bottom of the flammable powder from being submerged in water for extended periods, thus shortening drying time during later processing. The water below also maintains a certain temperature for float 2 and the flammable powder above, and moisture can also enter the space above float 2 through gaps, reducing the chance of smoldering of the flammable powder.

[0071] The float plate 2 is composed of multiple float plate units 21. Each float plate unit 21 has a rectangular structure, and adjacent float plate units 21 are connected by elastic sheets 22. The elastic sheets 22 can be made of soft plastic, rubber, silicone, cloth, etc. The elastic sheets 22 seal the gap between adjacent float plate units 21. Adjacent float plate units 21 can move relative to each other in the vertical direction, so that the float plate units 21 can adaptively float up and down with the rise and fall of the liquid surface below. The float plate units 21 at the periphery are slidably connected to the container wall 12 to maintain the stability of the float plate 2 in the storage container 1.

[0072] The float unit 21 can be connected to the container wall 12 by a vertical guiding mechanism, such as a vertical guide rail or guide groove, so that the surrounding float units 21 mainly move in the vertical direction and are as unbiased as possible.

[0073] The gap between two adjacent floating plate units 21 can be set according to the situation, but it should generally be more than 5cm, so that the vibration effect caused by the up and down floating will be better.

[0074] The agitation mechanism 3 is used to agitate the water in the storage container 1, with the agitation end of the mechanism 3 positioned below the liquid surface. After activation, the agitation mechanism 3 disturbs the water flow, causing irregular undulations in the water surface of the storage container 1. This causes the upper float plate 21 to rise and fall with the waves, thereby dispersing and roughly flattening the flammable powder above. Flattening in this invention does not mean that the top surface of the flammable powder is flat; it means that the flammable powder does not accumulate near the outlet of the feed pipe 13, but is spread out on the float plate 2 as much as possible. While the top surface will undulate, a large amount of powder will not accumulate together.

[0075] The disturbance mechanism 3 can be a disturbance pump or a disturbance impeller mechanism, etc., as long as it can disturb the water.

[0076] Multiple disturbance mechanisms 3 can be configured as needed to improve the disturbance effect.

[0077] After the disturbance mechanism 3 is closed, when the liquid level is stable, the float unit 21 is reset under the action of the elastic sheet 22, and the float 2 can stably support the flammable powder above.

[0078] When feeding flammable powder into the storage container 1 via the flammable powder conveying device 200, the agitation mechanism 3 can be activated at appropriate times. If the agitation mechanism 3 is not activated, it is easy for the following to occur: Figure 3 As shown, there is a problem of material accumulation on the sides and insufficient material in the middle.

[0079] The storage system can be configured with a control unit, which can be selected from chips, control circuit boards, controllers, computers, etc., and can automatically control the switching operation of various electrical appliances. The flammable powder conveying device 200 and the disturbance mechanism 3 are respectively connected to the control unit through wires to achieve automatic control.

[0080] In summary, the present invention provides a storage system for storing flammable powder, comprising a flammable powder storage device 100. The flammable powder storage device 100 includes a storage container 1, the lower part of which stores water. A float 2 floats on the water surface, and the float 2 is composed of multiple float units 21. Any two adjacent float units 21 are connected by an elastic sheet 22, allowing the float units 21 to adaptively float up and down with the fluctuations of the liquid surface below. The agitation mechanism 3 has its agitation end below the liquid surface, used to agitate the water flow, causing the liquid surface to fluctuate. When the flammable powder conveying device 200 supplies material to the storage container 1 through the conveying pipe at the top of the storage container 1, the agitation mechanism 3 is activated to agitate the water flow, causing the float units 21 to float up and down, thereby vibrating and spreading the flammable powder above the float 2.

[0081] This invention provides a storage system for flammable powder, overcoming the problems of existing technologies. The flammable powder is fed into the storage container 1 from one side of the top using a conveying pipe instead of being poured in, avoiding dust pollution. Combined with a disturbance mechanism 3 and a float 2, the float 21 floats up and down due to the water's movement, dispersing and spreading the flammable powder above the float 2, preventing accumulation below the conveying pipe. The water also reduces the likelihood of smoldering, providing an effective solution for flammable powder storage in the industry.

[0082] In one embodiment, the elastic sheet 22 is a rubber connecting sheet with good elasticity, which is beneficial for the floating plate unit 21 to float up and down.

[0083] In one embodiment, such as Figure 2 As shown, the disturbance mechanism 3 includes an impeller 32 located in the storage container 1 and a motor 31 for driving the impeller 32 to rotate. The motor 31 is connected to the storage container 1, and the impeller 32 is connected to the shaft of the motor 31.

[0084] In this embodiment, the disturbance mechanism 3 adopts an impeller disturbance mechanism, which includes a motor 31 and multiple impellers 32.

[0085] The motor 31 is preferably installed below the bottom plate of the storage container 1, which is supported off the ground by the support frame 15. The shaft of the motor 31 extends into the storage container 1, and multiple impellers 32 are mounted on the shaft of the motor 31 through bushings.

[0086] In one embodiment, such as Figure 2 As shown, a level gauge 16 is provided on the inner surface of the container wall 12, and the level gauge 16 is located below the feed pipe 13.

[0087] The level gauge 16 and the disturbance mechanism 3 are respectively connected to the control unit of the storage system.

[0088] When the level of flammable powder in storage container 1 is higher than that of level gauge 16, level gauge 16 sends a first signal to control unit, and control unit controls disturbance mechanism 3 to operate.

[0089] When the level of flammable powder in storage container 1 is lower than that of level gauge 16, level gauge 16 sends a second signal to control unit, and control unit controls disturbance mechanism 3 to stop operating.

[0090] In this embodiment, a level gauge 16 is configured to monitor whether material accumulates below the feed pipe 13. The level gauge 16 is arranged below the feed pipe 13. As pre-set, after the flammable powder is loaded into the storage container 1, a predetermined gap should be left between its top surface and the top cover 11 to prevent it from becoming full. A maximum material line is pre-marked on the inner surface of the container wall 12, and the level gauge 16 is installed above this maximum material line. The material volume corresponding to the maximum material line is V0.

[0091] When material is fed into storage container 1, the relationship between the amount of material V and V0 conveyed by flammable powder conveying device 200 is used to determine whether the material in storage container 1 has reached the maximum material line.

[0092] If the maximum material level has not yet been reached, and level gauge 16 continuously detects material reaching the level gauge 16 for a period of time (e.g., 1 minute or other time periods), it indicates that material is accumulating in storage container 1. Figure 3 As shown, the material will accumulate below the feed pipe 13, thus obstructing the level gauge 16. At this time, the level gauge 16 sends a first signal to the control unit, and the control unit controls the disturbance mechanism 3 to operate.

[0093] After the disturbance mechanism 3 is activated, the material tends to spread out under the vibration. Figure 4 As shown in the diagram, the level gauge 16 is no longer obstructed. When the level gauge 16 detects that the material is at the following position for a continuous period of time (e.g., 1 minute or other time periods), the level gauge 16 sends a second signal to the control unit, and the control unit controls the disturbance mechanism 3 to stop operating.

[0094] Automatic control is achieved through the automatic coordination of the level gauge 16 and the disturbance mechanism 3, saving manpower.

[0095] In one embodiment, such as Figure 1-2 As shown, the storage system includes a water supply device 300 and a drainage device 400.

[0096] The water supply device 300 includes a water supply tank 301, a water supply pipe 302, and a water supply pump 303 connected in series on the water supply pipe 302. One end of the water supply pipe 302 is connected to the outlet of the water supply tank 301, and the other end is connected to the inlet of the storage container 1.

[0097] The drainage device 400 includes a drain pipe 401 and a drain pump 402 connected in series with the drain pipe 401. The drain pipe 401 is connected to the drain outlet of the storage container 1.

[0098] In this embodiment, the lower part of the container wall 12 is provided with a water inlet and a water outlet, which are arranged opposite to each other.

[0099] A water supply device 300 is configured to fill the storage container 1 with water. A drainage device 400 is configured to drain the water from the storage container 1.

[0100] The water supply device 300 includes a water supply tank 301, a water supply pipe 302, and a water supply pump 303. The water supply tank 301 stores ambient temperature or cold water and is connected to the water inlet via the water supply pipe 302. The water supply pump 303 can be a variable frequency pump, and is connected in series with the water supply pipe 302. An inlet control valve, which can be a solenoid valve, is provided in the water inlet and / or the water supply pipe 302 to control the flow of water.

[0101] The drainage device 400 includes a drain pipe 401 and a drain pump 402, with the pump 402 connected in series with the drain pipe 401. The drain pipe 401 is connected to the drain outlet of the storage container 1 to drain water to a designated location or back to the water supply tank 301. A drain control valve is provided in the drain outlet and / or the drain pipe 401, which can be a solenoid valve, to control the on / off state of the drainage path.

[0102] Water supply pump 303, drainage pump 402, water inlet control valve and drainage control valve are respectively connected to the control unit by signal and are automatically controlled by the control unit.

[0103] Water can be added to and replenished in the storage container 1 via the water supply device 300. In the fire prevention and extinguishing embodiment detailed in the following embodiments, the drain control valve, the inlet control valve, and the water supply pump 303 can be opened, and the drain pump 402 can drain the water in the storage container 1 through the drain pipe 401, while simultaneously adding water to the storage container 1. The temperature of the added water is lower than that of the discharged water, which can achieve a better fire prevention and extinguishing effect. As needed, the inlet control valve and the drain control valve can be adjusted to make the water injection volume equal to the drainage volume, avoiding large fluctuations in the water level in the storage container 1, which helps to improve the stability of the flammable powder above.

[0104] If necessary, a water level sensor can be installed in the lower half of the storage container 1. The water level sensor is connected to the control unit. If the water level in the storage container 1 is preset, the control unit can automatically control the opening and closing of the water supply pump 303, the drainage pump 402, the water inlet control valve and the drainage control valve according to the water level data transmitted by the water level sensor 14, so that the water level in the storage container 1 remains stable.

[0105] If necessary, a temperature sensor can be installed at the bottom of the storage container 1. When the temperature sensor detects that the water temperature in the storage container 1 is higher than a certain value, such as 50°C, the water supply pump 303, the drain pump 402, the inlet control valve and the drain control valve will be automatically controlled to change the water in the storage container 1, that is, to replenish cold water.

[0106] As needed, the opening of the inlet control valve and the outlet control valve can be maximized so that the water injection volume of the water supply pump 303 is equal to the water discharge volume of the outlet pump 12. This not only improves the water exchange speed but also prevents the water level in the storage container 1 from fluctuating significantly, which helps to improve the stability of the flammable powder above.

[0107] In one embodiment, filter screens are provided in the inlet and outlet of the container wall 12 for filtration. The drain pump 402 can periodically backwash to flush the filter screens in the outlet.

[0108] In one embodiment, such as Figure 1-4 As shown, two feed pipes 13 are connected to the top of the container wall 12. The two feed pipes 13 are arranged on opposite sides of the container wall 12. Each feed pipe 13 is connected to a set of flammable powder conveying devices 200. The two sets of flammable powder conveying devices 200 can convey materials into the storage container 1 at one time, thereby increasing the conveying speed.

[0109] In one embodiment, such as Figure 8-9 , Figure 11-12 and Figure 14 As shown, the storage system includes a fire prevention and extinguishing device 500.

[0110] The fire prevention and extinguishing device 500 includes a lifting drive mechanism 501 and a heat dissipation plug 502 connected to the lifting drive mechanism 501.

[0111] The lifting drive mechanism 501 is fixedly installed and suspended above the top cover 11. When the lifting drive mechanism 501 is in the initial state, the heat dissipation rod 502 is suspended above the top cover 11.

[0112] The top cover 11 has a top cover through hole 112 for the heat dissipation rod 502 to pass through at the position corresponding to the heat dissipation rod 502.

[0113] The floating plate unit 21 is provided with a unit through hole 211 for the heat dissipation plug 502 to pass through at the position corresponding to the heat dissipation plug 502.

[0114] When the fire prevention and extinguishing device 500 is in the fire prevention and extinguishing state, the lifting drive mechanism 501 drives the heat dissipation rod 502 downward through the flammable powder until it is inserted into the water and then moves upward to carry water and / or water vapor into the flammable powder.

[0115] In this embodiment, a fire prevention and extinguishing device 500 is configured to provide fire prevention and extinguishing function for the flammable powder in the storage container 1.

[0116] The fire suppression device 500 includes a lifting drive mechanism 501 and heat dissipation rods 502. Multiple heat dissipation rods 502 can be configured as needed. These multiple heat dissipation rods 502 can be arranged in a desired shape, and the spacing between adjacent heat dissipation rods 502 is selected and set according to actual operating conditions. Preferably, the multiple heat dissipation rods 502 are arranged in a matrix. Each heat dissipation rod 502 has a cavity 5022, resulting in high heat exchange efficiency. The heat dissipation rods 502 are preferably made of metal or cooling rods. Preferably, both ends of the upper end of the heat dissipation rod 502 have pointed portions 5021 to allow passage through corresponding through holes and flammable powder.

[0117] The upper end of the heat dissipation rod 502 is connected to the lifting drive mechanism 501. The lifting drive mechanism 501 can be a telescopic mechanism, such as a hydraulic cylinder, a pneumatic cylinder, a motor screw, etc.

[0118] When the heat dissipation rod 502 is inserted downward into the storage container 1, it can smoothly pass through the flammable powder and exchange heat with the flammable powder, thus achieving a certain cooling effect.

[0119] In order to allow the heat dissipation rod 502 to be inserted downward into the storage container 1, a corresponding top cover through hole 112 is provided on the top cover 11, and the top cover through hole 112 corresponds one-to-one with the heat dissipation rod 502.

[0120] The lifting drive mechanism 501 is fixedly installed above the storage container 1. It can be fixed by a bracket or suspended from the ceiling of the factory building. The lifting drive mechanism 501 is used to drive the heat dissipation rod 502 to move back and forth up and down. The lifting drive mechanism 501 is connected to the control unit through a wire to realize signal transmission. The control unit controls the switching and operation mode of the lifting drive mechanism 501.

[0121] When the lifting drive mechanism 501 is in its initial state, it is in a retracted state, and the heat dissipation rod 502 is above the top cover 11 and at a certain distance from the top cover 11.

[0122] The floating plate unit 21 corresponding to the position of the heat dissipation rod 502 is provided with a unit through hole 211, and the heat dissipation rod 502 can pass through the unit through hole 211 when it moves up and down.

[0123] When smoldering of the flammable powder in storage container 1 is detected, the lifting drive mechanism 501 drives the heat dissipation rod 502 to move up and down repeatedly. When the lifting drive mechanism 501 drives the heat dissipation rod 502 downwards for the first time, the heat dissipation rod 502 passes through the corresponding top cover through-hole 112 in sequence, and then downwards through the flammable powder. During this process, the heat dissipation rod 502 exchanges heat with the surrounding flammable powder, achieving a certain cooling effect. The heat dissipation rod 502 passes through the individual through-hole 211 and is inserted into the water below the float 2. On the one hand, the water cools the heat dissipation rod 502; on the other hand, the heat dissipation rod 502 carries a certain amount of water and / or water vapor as it moves upwards. The stroke of the lifting drive mechanism 501 can be set according to the water level and the length of the heat dissipation rod 502 to ensure that the heat dissipation rod 502 can be inserted into the water below. As needed, room temperature water and / or cold water can be used. After the heat dissipation rod 502 is inserted into the water, it moves upward through the flammable powder. During this upward movement, the heat dissipation rod 502 carries a certain amount of water and / or water vapor into the flammable powder. The water and / or water vapor diffuse in all directions within the flammable powder, achieving the purpose of fire prevention and extinguishing. During the upward movement of the heat dissipation rod 502, it can either pass through the top cover through-hole 112 and then move downward repeatedly, or it can pass through the flammable powder and immediately move downward repeatedly to increase the frequency of carrying water and / or water vapor into the flammable powder.

[0124] The amount of water or water vapor carried by the heat dissipation rod 502 can be adjusted by changing the surface roughness of the heat dissipation rod 502; the rougher the surface, the greater the amount of water or water vapor carried. By carrying water or water vapor into the interior of the flammable powder through the heat dissipation rod 502, the fire prevention and extinguishing effect is better.

[0125] In one embodiment, such as Figure 2As shown, a temperature sensor 18 is provided in the storage container 1. It can be installed on the container wall 12 or connected to the top cover 11 via a hanging rod. The number and location of the temperature sensors 18 can be arranged as needed; preferably, multiple temperature sensors 18 are installed in the container. The temperature sensors 18 are embedded in the flammable powder to monitor its temperature in real time. Assuming the ignition point of the flammable powder is T0, a critical temperature alarm threshold or preset temperature threshold is set to T1, where T1 < T0, T1 = T0 - a, and a is a constant set according to actual needs. This critical temperature alarm threshold or preset temperature threshold is preset in the control unit.

[0126] Temperature sensor 18 is connected to the control unit via a wire to transmit signals. Temperature sensor 18 will transmit the monitored real-time temperature T. n The data is transmitted to the control unit. The control unit then determines the real-time temperature T. n When the temperature approaches, equals or exceeds the preset temperature threshold T1, the lifting drive mechanism 501 is automatically controlled to start moving, so as to drive the heat sink 502 to move up and down repeatedly.

[0127] In one embodiment, such as Figure 2 As shown, a smoke sensor 17 is provided on the bottom surface of the top cover 11 to monitor whether smoke appears in the space between the flammable powder and the top cover 11. If smoke appears in this space, it indicates that the flammable powder may have smoldered. The smoke sensor 17 is connected to the control unit via a wire to achieve signal transmission. The smoke sensor 17 transmits the detected smoke alarm signal to the control unit. When the control unit receives the smoke alarm signal from the smoke sensor 17, it automatically controls the lifting drive mechanism 501 to start operating, thereby driving the heat dissipation rod 502 to move up and down reciprocally.

[0128] In one scenario, the control unit receives a T signal from the temperature sensor 18. n If the temperature of the flammable powder is close to, equal to, or greater than T1, but no smoke alarm signal is received from the smoke sensor 17, it indicates that the temperature of a certain part or local area of ​​the flammable powder is close to the warning temperature value, and the lifting drive mechanism 501 needs to be activated.

[0129] In another scenario, the control unit receives both T from the temperature sensor 18 and... n If the smoke signal is close to, equal to or greater than T1, and a smoke alarm signal is received from the smoke sensor 17, it indicates that smoldering has occurred in some part or a certain area of ​​the flammable powder, and the lifting drive mechanism 501 needs to be activated.

[0130] When the real-time temperature received by the control unit is lower than the preset temperature threshold, and / or when the control unit no longer receives the smoke alarm signal, the control unit controls the lifting drive mechanism 501 to reset to the initial state, and the lifting drive mechanism 501 drives the heat dissipation plug 502 to reset to the initial state.

[0131] In one embodiment, such as Figure 8 and Figure 11-12 As shown, the lifting drive mechanism 501 includes a lifting plate 5012 suspended above the top cover 11, a lifting plate drive assembly 5011 connected to the lifting plate 5012 and used to drive the lifting plate 5012 to move up and down, and a telescopic mechanism 5013 connected to the lifting plate 5012 and used to drive the heat dissipation plug 502 to move up and down.

[0132] The telescopic mechanism 5013 corresponds one-to-one with the number and position of the heat dissipation rods 502. The heat dissipation rods 502 are located below the lifting plate 5012, and the upper end of the heat dissipation rods 502 is connected to the piston rod of a telescopic mechanism 5013.

[0133] The lifting plate drive assembly 5011 can be driven by a piston, cylinder, hydraulic cylinder, motor screw, or other drive mechanism. The mounting base of the lifting plate drive assembly 5011 is installed on the ceiling or bracket, with the output end of the lifting plate drive assembly 5011 facing downwards and connected to the lifting plate 5012. The telescopic mechanism 5013 can be a cylinder or hydraulic cylinder; multi-stage telescopic mechanisms can be used as needed. The cylinder body of the telescopic mechanism 5013 is installed on top of the lifting plate 5012, and the lifting plate 5012 has a through hole for the piston rod to pass through. The heat dissipation rod 502 is located below the lifting plate 5012, and its upper end is connected to the piston rod.

[0134] The lifting plate drive assembly 5011 and the telescopic mechanism 5013 are respectively connected to the control unit via signals.

[0135] like Figure 11 As shown, when the lifting drive mechanism 501 is activated, the lifting plate drive assembly 5011 first drives the lifting plate 5012 to move downwards a preset distance along arrow A. The lifting plate 5012 then drives the telescopic mechanism 5013 and the heat dissipation rod 502 to descend together a preset distance. The heat dissipation rod 502 is inserted into the storage container 1 through the top cover through hole 112. Figure 12 As shown, the piston rod of the telescopic mechanism 5013 moves downward along arrow B, thereby driving the heat dissipation rod 502 to move downward through the flammable powder and the single-lift through-hole 211, and insert it into the water below. Then, the piston rod of the telescopic mechanism 5013 retracts, causing the heat dissipation rod 502 to move upward through the flammable powder and move above the flammable powder.

[0136] The lifting plate drive assembly 5011 is mainly used to drive the lifting plate 5012, the telescopic mechanism 5013, and the heat dissipation rod 502 to move downwards in the first stage, so that the heat dissipation rod 502 is inserted into the storage container 1. The telescopic mechanism 5013 is mainly used to drive the heat dissipation rod 502 to move back and forth up and down in the storage container 1.

[0137] In one embodiment, such as Figure 8 and Figure 10 As shown, the float plate unit 21 with a single through hole 211 is connected to the bottom plate of the storage container 1 through the connecting rod 23 to fix the float plate unit 21 with the single through hole 211, ensuring that the position of the single through hole 211 corresponds to that of the heat dissipation plug 502, so that the heat dissipation plug 502 can pass through the single through hole 211.

[0138] Generally, when a float plate unit 21 is provided with a unit through hole 211, other float plate units 21 around it are no longer provided with unit through holes 211, and the float plate units 21 around it can still float up and down to provide vibration.

[0139] In one embodiment, such as Figure 13 As shown, a rod scraper 19 is provided in and / or below the top cover through hole 112.

[0140] The insert scraper 19 includes two elastic scraper blades 191 arranged opposite to each other.

[0141] When the insert scraper 19 is in its initial state, the two elastic scrapers 191 contact and seal the top cover through hole 112.

[0142] In this embodiment, the insert scraper 19 includes two elastic scraper blades 191, which are arranged opposite to each other. The elastic scraper blades 191 are arc-shaped. When the insert scraper 19 is in the initial state, the arc-shaped protrusions of the two elastic scraper blades 191 are in contact and can seal the top cover through hole 112, so that the gas in the storage container 1 is discharged only through the vent 111.

[0143] As the heat sink 502 moves up and down and passes the scraper 19, its tip 5021 can spread the two elastic scrapers 191 apart. The two elastic scrapers 191 can also scrape off fine powder, water, etc. on the heat sink 502.

[0144] The elastic scraper 191 is arc-shaped. When the two elastic scrapers 191 are in contact, there are flared mouths at the upper and lower ends so that the tip 5021 can be inserted.

[0145] An embodiment of the present invention provides a control method for a storage system, comprising the following steps:

[0146] S1: Feed material into storage container 1.

[0147] S2: Activate the disturbance mechanism 3 to disturb the water flow, causing the float unit 21 to float up and down, so as to vibrate and spread the flammable powder above the float 2.

[0148] S2: Complete material feeding and shut down disturbance mechanism 3.

[0149] In summary, the present invention provides a storage system and control method for storing flammable powder, overcoming the problems of existing technologies. It inputs the flammable powder from one side of the top of the storage container 1 via a conveying pipe instead of pouring it in, avoiding the environmental pollution caused by dust spillage. Furthermore, the combination of the agitation mechanism 3 and the float 2 utilizes the buoyancy of the water surface to cause the float 21 to float up and down, vibrating and spreading the flammable powder above the float 2, preventing it from accumulating below the conveying pipe. The water also reduces the probability of smoldering of the flammable powder, providing an effective solution for the storage of flammable powder in the industry. The fire prevention and extinguishing function can be achieved by configuring a fire prevention and extinguishing device 500.

[0150] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0151] The above are merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of the present invention, and these modifications should also be considered within the scope of protection of the present invention.

Claims

1. A storage system for storing flammable powder, characterized in that, Including flammable powder storage devices; The flammable powder storage device includes a water-containing storage container, a float plate located inside the storage container and floating on the liquid surface, and a disturbance mechanism for agitating the water. The storage container is detachably fitted with a top cover, which has a vent and a filter screen. The top of the container wall of the storage container is provided with a feed pipe for connection to a flammable powder conveying device; The float plate is located below the feed pipe, and the four edges of the float plate are slidably connected to the container wall. The float plate is used to carry flammable powder entering the storage container. The float plate is composed of multiple float plate units. Any two adjacent float plate units are connected by an elastic sheet. The elastic sheet seals the gap between the two adjacent float plate units, and the float plate unit can adaptively float up and down with the fluctuation of the liquid surface below. When feeding material into the storage container, the disturbance mechanism activates to disturb the water flow, thereby causing the float to float up and down, which is used to vibrate and spread the flammable powder above the float. The storage system includes a fire prevention and extinguishing device; the fire prevention and extinguishing device includes a lifting drive mechanism and a heat dissipation rod connected to the lifting drive mechanism; the lifting drive mechanism is fixedly installed and suspended above the top cover, and when the lifting drive mechanism is in its initial state, the heat dissipation rod is suspended above the top cover; the top cover has a top cover through hole corresponding to the position of the heat dissipation rod for the heat dissipation rod to pass through; each float unit has a unit through hole corresponding to the position of the heat dissipation rod for the heat dissipation rod to pass through; when the fire prevention and extinguishing device is in the fire prevention and extinguishing state, the lifting drive mechanism drives the heat dissipation rod downward through the flammable powder until it is inserted into the water and then moves upward to carry water and / or water vapor into the flammable powder.

2. The storage system for storing flammable powder according to claim 1, characterized in that, The elastic sheet is a rubber connecting sheet.

3. The storage system for storing flammable powder according to claim 1, characterized in that, The disturbance mechanism includes an impeller located in the storage container and a motor for driving the impeller to rotate. The motor is connected to the storage container, and the impeller is connected to the shaft of the motor.

4. The storage system for storing flammable powder according to claim 1, characterized in that, A level gauge is provided on the inner surface of the container wall, and the level gauge is located below the feed pipe; The level gauge and the disturbance mechanism are respectively connected to the control unit of the storage system via signal connection. When the level of flammable powder in the storage container is higher than the level gauge, the level gauge sends a first signal to the control unit, and the control unit controls the disturbance mechanism to operate. When the level of flammable powder in the storage container is lower than the level gauge, the level gauge sends a second signal to the control unit, and the control unit controls the disturbance mechanism to stop operating.

5. The storage system for storing flammable powder according to claim 1, characterized in that, The storage system includes a water supply device and a drainage device; The water supply device includes a water supply tank, a water supply pipe, and a water supply pump connected in series on the water supply pipe. One end of the water supply pipe is connected to the outlet of the water supply tank, and the other end is connected to the inlet of the storage container. The drainage device includes a drain pipe and a drain pump connected in series with the drain pipe, the drain pipe being connected to the drain outlet of the storage container.

6. The storage system for storing flammable powder according to claim 1, characterized in that, The top of the container wall is connected to two feed pipes, which are arranged on opposite sides of the container wall. Each feed pipe is connected to a set of flammable powder conveying devices.

7. The storage system for storing flammable powder according to claim 1, characterized in that, The float plate with the aforementioned through-hole is connected to the bottom plate of the storage container via a connecting rod.

8. The storage system for storing flammable powder according to claim 1, characterized in that, A rod scraper is provided in and / or below the top cover through hole; The insert rod scraper includes two elastic scraper blades arranged opposite to each other; When the insert scraper is in its initial state, the two elastic scrapers contact and seal the top cover through hole.

9. A control method for a storage system as described in any one of claims 1-8, characterized in that, Includes the following steps: S1: Feeding material into the storage container; S2: Activate the disturbance mechanism to disturb the water flow, causing the float to float up and down, thereby vibrating and spreading the flammable powder above the float. S2: Complete feeding and shut down the disturbance mechanism.

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