Powder storage and transportation equipment and tank truck

Abstract

The utility model provides powder storage and transportation equipment and a tank car. The powder storage and transportation equipment comprises a tank body, a conical hopper structure and an air inlet structure, the conical hopper structure is accommodated in the tank body; the conical hopper structure comprises a connecting barrel section, a bottom sealing plate and a discharging conical hopper, and the connecting barrel section downwards penetrates out of the bottom wall of the tank body; the bottom sealing plate is connected into the connecting shell ring; a first discharge hole is formed in the bottom of the bottom sealing plate; in the direction from top to bottom, the cross sectional area of the discharging conical hopper is gradually reduced; the upper end of the discharging conical hopper is hermetically connected with the inner peripheral wall of the tank body; the lower end of the discharging conical hopper extends into the connecting barrel section, and a second discharging opening is formed in the lower end of the discharging conical hopper; the lower end of the discharging conical hopper and the bottom sealing plate are arranged at an interval to form an air outlet; an air outlet cavity is formed among the discharging conical hopper, the connecting shell ring and the bottom sealing plate; the air inlet structure is used for inputting compressed air into the air outlet cavity. And gas output by the air outlet can purge the materials, powder is prevented from remaining on the bottom sealing plate after the powder is unloaded, and the unloading residual rate of the powder storage and transportation equipment is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of storage and transportation equipment technology, and in particular to a powder storage and transportation equipment and tank truck. Background Technology

[0002] Powder storage and transportation equipment is a type of equipment specifically designed for transporting powdery materials. It is widely used in industries such as chemical, building materials, food, and pharmaceutical. Conventional powder storage and transportation equipment is mostly used for loading non-hazardous materials such as cement, fly ash, and flour, and does not have high requirements for the airtightness of the storage and transportation equipment or the unloading residue rate.

[0003] However, when transporting special hazardous powdery goods such as lithium sulfide and lithium hexafluorophosphate, powder storage and transportation equipment has strict requirements on the airtightness and unloading residue rate. If there is a large amount of residue when unloading powdery goods, the remaining hazardous powdery goods will come into contact with air and moisture and react to decompose into toxic and harmful substances, thereby endangering the life, health and safety of workers and the environment. Utility Model Content

[0004] The purpose of this application is to provide a powder storage and transportation equipment and tank truck that can effectively reduce the residual rate of powder storage and transportation equipment during unloading.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] According to one aspect of this application, a powder storage and transportation device is provided, comprising: a tank body, a conical hopper structure, and an air inlet structure; the tank body extends horizontally, and a receiving space is provided inside the tank body; the conical hopper structure is housed within the receiving space; the conical hopper structure includes a connecting cylindrical section, a bottom sealing plate, and a discharge conical hopper, the connecting cylindrical section extending vertically to pass through the bottom wall of the tank body; the bottom sealing plate is sealed to the bottom end of the connecting cylindrical section, and the cross-sectional area of ​​the bottom sealing plate gradually decreases from top to bottom, with a first discharge port opened at the bottom of the bottom sealing plate; the discharge conical hopper... The cross-sectional area gradually decreases; the upper end of the discharge cone is sealed to the inner peripheral wall of the tank; the lower end of the discharge cone extends into the connecting cylinder, and the lower end of the discharge cone has a second discharge port; the lower end of the discharge cone is spaced apart from the bottom sealing plate to form an air outlet; an air outlet cavity is formed between the outer peripheral wall of the discharge cone, the connecting cylinder, and the bottom sealing plate; an air inlet structure is provided on the outside of the tank, the air inlet end of the air inlet structure is used to connect to a compressed air source, and the air outlet end of the air inlet structure is connected to the air outlet cavity so that compressed gas in the compressed air source can be input into the air outlet cavity.

[0007] In some embodiments, a cylinder segment air inlet is formed on the peripheral wall of the connecting cylinder segment relative to the air outlet cavity; the air inlet structure comprises a first air inlet pipe, and an air outlet end of the first air inlet pipe is in communication with the cylinder segment air inlet; and in a direction towards the first discharge port axis, the distance between the bottom sealing plate and the discharge cone gradually decreases.

[0008] In some embodiments, the second discharge port has a larger diameter than the first discharge port; and / or, the first discharge port axis is coaxial with the second discharge port axis, and the air outlet formed between the lower end of the discharge cone and the bottom sealing plate is annular.

[0009] In some embodiments, the discharge cone divides the accommodation space into a powder storage and transportation cavity and a pressure maintaining cavity in the up-down direction, the powder storage and transportation cavity is located on the upper side of the discharge cone for accommodating the powder; the pressure maintaining cavity is located on the lower side of the discharge cone; the top of the tank body is provided with a pressurized air inlet relative to the powder storage and transportation cavity; the air inlet structure further comprises a second air inlet pipe, and an air outlet end of the second air inlet pipe is in communication with the powder storage and transportation cavity through the pressurized air inlet to input compressed gas into the powder storage and transportation cavity.

[0010] In some embodiments, the outer periphery of the discharge cone is sealingly connected to the upper end of the connecting cylinder segment, and the pressure maintaining cavity is separately arranged from the air outlet cavity; the tank body is provided with a pressure maintaining air inlet relative to the pressure maintaining cavity; the air inlet structure comprises a third air inlet pipe, and an air outlet end of the third air inlet pipe is in communication with the pressure maintaining cavity through the pressure maintaining air inlet to input compressed gas into the pressure maintaining cavity.

[0011] In some embodiments, the storage and transportation device comprises a plurality of the cone structures arranged in sequence along the axial direction of the tank body; and the opposite sides of the plurality of discharge cones are sealingly connected.

[0012] In some embodiments, the storage and transportation device further comprises a discharge main pipe, the discharge main pipe is located on the lower side of the cone structure, and the discharge main pipe extends along the axial direction of the tank body; and the discharge main pipe can be in communication with the powder storage and transportation cavity through the first discharge port.

[0013] In some embodiments, the air inlet structure further comprises a fourth air inlet pipe, and an air outlet end of the fourth air inlet pipe is in communication with one end of the discharge main pipe to input compressed gas into the discharge main pipe.

[0014] In some embodiments, a plurality of partition plates are arranged in the tank body, and the partition plates are located between two adjacent conical hopper structures, extend along the circumference of the tank body in an arc shape, and are connected to the opposite sides of the two adjacent discharge conical hoppers at the inner periphery of the partition plates, and are connected to the inner peripheral wall of the pressure maintaining cavity at the outer periphery of the partition plates. At least one air vent is arranged on the partition plates located in the pressure maintaining cavity.

[0015] In some embodiments, the included angle between the discharge conical hopper and the horizontal plane is greater than the repose angle of the powder.

[0016] In some embodiments, the storage and transportation device further comprises a frame arranged outside the tank body and connected to the tank body to support the tank body.

[0017] The application also provides a tank truck comprising a vehicle body and the powder storage and transportation device as described above, wherein the powder storage and transportation device is connected to the vehicle body to be movable with the vehicle body.

[0018] From the above technical solution, the application has at least the following advantages and positive effects:

[0019] In the application, the powder storage and transportation device contains the powder, facilitating the transportation of the powder. When the powder is transported to the destination, the powder in the tank body flows out of the second discharge port of the discharge conical hopper to the bottom sealing plate, and then is output to the outside through the first discharge port on the bottom sealing plate. When the powder storage and transportation device is unloaded, the compressed gas in the compressed gas source outside is input into the air outlet cavity through the air inlet structure, and then is output through the air outlet to blow off the material. The gas output through the air outlet can assist the flow of the powder, improve the fluidization effect of the powder, and enhance the unloading efficiency of the powder. On the other hand, the gas output through the air outlet can blow off the material, prevent residual powder on the bottom sealing plate after the powder is unloaded, effectively reduce the residual rate of the powder storage and transportation device, and avoid the contact between the powder and the air to produce toxic and harmful substances to harm the life and health of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic diagram of a powder storage and transportation device according to the application.

[0021] Figure 2 FIG. 2 is a structural schematic diagram of the powder storage and transportation device according to the application after the frame is removed.

[0022] Figure 3 FIG. 3 is a structural schematic diagram of the powder storage and transportation device according to the application after the frame is removed. Figure 2 FIG. 4 is a sectional view of the structure shown in FIG. 3.

[0023] Figure 4 FIG. 5 is an enlarged view of structure A of the structure shown in FIG. 3. Figure 3 FIG. 6 is an enlarged view of structure B of the structure shown in FIG. 3.

[0024] Figure 5is Figure 2 partial sectional view of the structure shown in FIG.

[0025] Figure 6 is Figure 2 structure schematic diagram of the structure shown in FIG.

[0026] The reference signs are explained as follows: 100, tank body; 101, cylinder body; 102, end head; 110, containing space; 111, powder storage and transportation cavity; 112, pressure maintaining cavity; 200, conical hopper structure; 210, connecting cylinder section; 211, cylinder section air inlet; 220, bottom sealing plate; 221, first discharge port; 230, discharge conical hopper; 231, first conical hopper part; 232, second conical hopper part; 2321, second discharge port; 240, air outlet cavity; 241, air outlet; 310, partition plate; 311, air vent; 400, discharge main pipe; 500, air inlet structure; 510, first air inlet pipe; 520, second air inlet pipe; 530, third air inlet pipe; 540, fourth air inlet pipe; 600, frame. DETAILED DESCRIPTION

[0027] The typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can be implemented in various ways, none of which depart from the scope of the present application, and that the description and drawings are to be regarded as illustrative in nature and not restrictive.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] Figure 1 is a structure schematic diagram of the powder storage and transportation equipment of the present application. Figure 2 is a structure schematic diagram of the powder storage and transportation equipment of the present application.

[0030] Referring to Figure 1 and Figure 2 , the application provides a powder storage and transportation device, which can store and transport dangerous powder materials (hereinafter referred to as powder) to avoid the reaction of the powder with air, and ensure the stability, purity and efficient transportation of the powder.

[0031] In some embodiments, the dangerous powder can include lithium sulfide, lithium hexafluorophosphate, etc.

[0032] In other embodiments, the powder storage and transportation device of the application can also be used to store and transport conventional powder. For example, flour, fly ash, cement, etc.

[0033] Figure 3 is a sectional view of the structure shown in Figure 2 .

[0034] Referring to Figures 1 to 3 , for the convenience of understanding and description, the state of the powder storage and transportation device in use is taken as a reference, and the up-down direction of the powder storage and transportation device is taken as the up-down direction hereinafter.

[0035] Figure 4 is an enlarged view of the structure A shown in Figure 3 . Figure 5 is a partial sectional view of the structure shown in Figure 2 . Figure 6 is a structure schematic diagram of the structure shown in Figure 2 after removing the cylinder and the related structure thereon.

[0036] Referring to Figures 1 to 6The application provides a powder storage and transportation equipment (hereinafter referred to as the storage and transportation equipment), which comprises a tank body 100, a hopper structure 200 and an air inlet structure 500. The tank body 100 extends along a horizontal direction. The tank body 100 is provided with a containing space 110, and the containing space 110 can contain powder to facilitate the storage and transportation of the powder. The hopper structure 200 is contained in the containing space 110. The hopper structure 200 comprises a connecting cylinder section 210, a bottom sealing plate 220 and a discharge hopper 230. The connecting cylinder section 210 extends along the up-down direction to pass through the bottom wall of the tank body 100. The bottom sealing plate 220 is sealingly connected to the bottom end of the connecting cylinder section 210. In the direction from top to bottom, the cross-sectional area of the bottom sealing plate 220 gradually decreases, and the bottom of the bottom sealing plate 220 is provided with a first discharge port 221. In the direction from top to bottom, the cross-sectional area of the discharge hopper 230 gradually decreases. The upper end of the discharge hopper 230 is sealingly connected to the inner circumferential wall of the tank body 100. The lower end of the discharge hopper 230 extends into the connecting cylinder section 210. The lower end of the discharge hopper 230 is provided with a second discharge port 2321. The lower end of the discharge hopper 230 is spaced apart from the bottom sealing plate 220 to form an air outlet 241. An air outlet cavity 240 is formed between the outer circumferential wall of the discharge hopper 230, the connecting cylinder section 210 and the bottom sealing plate 220. The air inlet structure 500 is arranged on the outside of the tank body 100, and the air outlet end of the air inlet structure 500 is in communication with the air outlet cavity 240. The air inlet structure 500 is used for connecting a compressed gas source in the external environment, so that the compressed gas in the compressed gas source can be input into the air outlet cavity 240.

[0037] When the powder storage and transportation equipment needs to unload the powder during the transportation of the powder to the destination, the air inlet structure 500 is connected to the compressed gas source in the external environment to input the compressed gas into the air outlet cavity 240. The compressed gas in the air outlet cavity 240 blows the powder through the air outlet 241. The powder in the tank body 100 is output to the external environment through the first discharge port 221 under the action of the gravity and the kinetic energy of the compressed gas, thereby effectively improving the unloading efficiency of the powder.

[0038] In addition, after the unloading of the powder is completed, the compressed gas can blow the bottom end of the bottom sealing plate 220, thereby effectively avoiding the residual powder on the bottom sealing plate 220, increasing the fluidization effect of the powder and reducing the unloading residual rate of the storage and transportation equipment during the transportation of the dangerous powder. The residual dangerous powder in the tank body 100 is prevented from contacting the air and water vapor and reacting, the powder is prevented from decomposing toxic and harmful substances, and the life safety and health safety of the staff and the environmental safety are ensured.

[0039] Referring to Figures 1 to 3 , Figure 5 , Figure 6 In the embodiment, the tank body 100 can comprise a cylinder body 101 and two end covers 102. The cylinder body 101 extends along a horizontal direction, and the two end covers 102 are sealingly connected to the two ends of the cylinder body 101 to ensure the air tightness of the tank body 100.

[0040] In some embodiments, the tank body 100 is further provided with a feed inlet, a feed valve, a manhole, a manhole valve and the like, which are arranged according to the general structure of the related powder storage and transportation tank.

[0041] Referring to Figures 3 to 6 In the present embodiment, the tank body 100 is provided with a receiving space 110. The discharge hopper 230 divides the receiving space 110 into a powder storage and transportation cavity 111 and a pressure maintaining cavity 112 along the up-down direction. The powder storage and transportation cavity 111 is located at the upper side of the discharge hopper 230 and is used for accommodating powder. The pressure maintaining cavity 112 is located at the lower side of the discharge hopper 230.

[0042] When the powder storage and transportation device is loaded with powder, the powder enters the powder storage and transportation cavity 111 through the feed inlet on the tank body 100, so as to ensure the loading efficiency of the powder. After the powder enters the powder storage and transportation cavity 111, it can be stored in the tank body 100 and can be transported and moved with the tank body 100.

[0043] When the powder storage and transportation device is unloaded, the powder in the powder storage and transportation cavity 111 can be unloaded through the discharge hopper 230.

[0044] In some embodiments, the tank body 100 can be further provided with a heat preservation structure, a reinforcing structure and the like, so as to improve the heat preservation performance and structural strength of the tank body 100. In other embodiments, the tank body 100 can be coated with a heat preservation layer. The tank body 100 can be provided with a reinforcing ring.

[0045] Referring to Figures 2 to 6 In the present embodiment, the tank body 100 is provided with a pressurized air inlet with respect to the powder storage and transportation cavity 111. The tank body 100 is provided with a pressure maintaining air inlet with respect to the pressure maintaining cavity 112.

[0046] Referring to Figures 3 to 6 In the present embodiment, the hopper structure 200 is accommodated in the receiving space 110, so as to be capable of carrying powder. When the device is unloaded, the hopper structure 200 can assist in unloading the powder, improve the unloading efficiency of the powder, avoid the powder from being in contact with the outside during unloading, reduce the unloading residual rate of the powder, and ensure the safety of the workers.

[0047] The hopper structure 200 includes a connecting cylinder section 210, a bottom sealing plate 220 and a discharge hopper 230. The connecting cylinder section 210 extends along the up-down direction to pass through the bottom wall of the tank body 100. The outer periphery of the connecting cylinder section 210 is tightly connected with the tank body 100, so as to ensure the air tightness of the tank body 100.

[0048] In some embodiments, the connecting cylinder section 210 is welded with the tank body 100.

[0049] Referring to Figures 3 to 6In the embodiment, the cross-sectional area of the connecting cylinder section 210 gradually decreases in the direction from top to bottom, so as to effectively improve the connection strength and reliability between the connecting cylinder section 210 and the tank body 100, and avoid the connecting cylinder section 210 from being pulled out of the tank body 100.

[0050] Referring to Figures 3 to 6 In the embodiment, the cylinder section air inlet 211 is arranged on the peripheral side wall of the connecting cylinder section 210 and is communicated with the external compressed gas source through the air inlet structure 500, so as to input the compressed gas into the air outlet cavity 240.

[0051] In the direction towards the axis of the connecting cylinder section 210, the cross-sectional area of the air outlet cavity 240 gradually decreases, so as to gradually compress the compressed gas output through the air outlet 241 after the compressed gas diffuses in the air outlet cavity 240, thereby improving the flow rate of the gas output by the air outlet 241, improving the blowing efficiency of the gas, and ensuring the fluidization and discharging efficiency of the powder and the blowing quality.

[0052] Referring to Figures 3 to 6 In the embodiment, the upper end of the connecting cylinder section 210 is arranged close to the bottom of the tank body 100, so as to reduce the taper of the discharge cone 230, improve the flowability of the powder on the upper side of the discharge cone 230, and reduce the discharging residual rate of the discharge cone 230.

[0053] Referring to Figures 3 to 6 In the embodiment, the bottom sealing plate 220 is arranged at the bottom end of the connecting cylinder section 210. In the direction from top to bottom, the cross-sectional area of the bottom sealing plate 220 gradually decreases, and the first discharge port 221 is arranged at the bottom of the bottom sealing plate 220. The powder in the powder storage and transportation cavity 111 can be discharged to the outside of the tank body 100 through the first discharge port 221 in the bottom sealing plate 220, and the bottom sealing plate 220 arranged in an inclined manner can improve the flowability of the powder and reduce the discharging residual rate of the powder.

[0054] In some embodiments, the axis of the bottom sealing plate 220 is coaxially arranged with the axis of the connecting cylinder section 210, so as to gather the powder in the middle of the bottom sealing plate 220 and output the powder to the outside of the tank body 100 through the first discharge port 221.

[0055] In some embodiments, the bottom sealing plate 220 is welded to the connecting cylinder section 210.

[0056] In other embodiments, the bottom sealing plate 220 is accommodated in the connecting cylinder section 210 and is welded to the inner peripheral wall of the connecting cylinder section 210, so that the bottom sealing plate 220 can be adapted to the structure of the connecting cylinder section 210, avoid the bottom sealing plate 220 from being separated from the connecting cylinder section 210, and improve the connection strength between the bottom sealing plate 220 and the connecting cylinder section 210.

[0057] In some embodiments, the bottom sealing plate 220 can include a spherical cap, a circular truncated cone, or a grass hat, etc. In other embodiments, the bottom sealing plate 220 can also include a bottom cover to seal the connection between the bottom sealing plate 220 and the connecting cylinder 210, and the cross-sectional area of the bottom sealing plate 220 gradually decreases in the direction from top to bottom.

[0058] Referring to Figure 3 In the present embodiment, the discharge hopper 230 is accommodated in the accommodation space 110 of the tank 100. The cross-sectional area of the discharge hopper 230 gradually decreases in the direction from top to bottom. The upper end of the discharge hopper 230 is sealingly connected to the inner wall of the tank 100, so that the discharge hopper 230 can divide the accommodation space 110 into the powder storage and transportation cavity 111 and the pressure maintaining cavity 112. The lower end of the discharge hopper 230 extends into the connecting cylinder 210. The lower end of the discharge hopper 230 has a second discharge port 2321.

[0059] When the storage and transportation device is loaded with powder, the powder enters the powder storage and transportation cavity 111 through the inlet, and accumulates on the discharge hopper 230. The inclined discharge hopper 230 can improve the flowability of the powder while ensuring the transportation capacity of the powder.

[0060] When the storage and transportation device is unloaded, the powder on the discharge hopper 230 can be sequentially output to the outside of the tank 100 through the second discharge port 2321 and the first discharge port 221 under the action of the inclined discharge hopper 230, so as to avoid the residual of the powder on the discharge hopper 230, reduce the residual rate of the powder unloading, thereby avoiding the waste of material, reducing the cleaning cost of the tank after unloading, avoiding the corrosion of the tank due to the long-term adhesion of residual powder, avoiding the blockage of the discharge pipeline and valve due to the residual powder, and avoiding the formation of a dust environment in the tank to cause dust explosion.

[0061] In some embodiments, the diameter of the second discharge port 2321 is larger than the diameter of the first discharge port 221. When the airflow output by the air outlet 241 is large enough, the airflow will make the powder at the bottom of the accommodation space 110 swell and suspend, and generate bubbles, so as to make the powder in the accommodation space 110 reach the bubbling fluidization state, thereby increasing the efficiency, stability and reliability of the unloading.

[0062] In some embodiments, the axis of the first discharge port 221 is coaxial with the axis of the second discharge port 2321, so that the powder output by the second discharge port 2321 can be quickly output to the outside of the tank 100 through the first discharge port 221. Moreover, it is also convenient for the air outlet 241 to blow the powder output by the second discharge port 2321, which improves the fluidization efficiency and unloading speed of the powder, and reduces the unloading residual rate on the bottom sealing plate 220.

[0063] Referring to Figure 4 , Figures 3 to 6In the embodiment, the included angle between the discharge cone 230 and the horizontal plane is greater than the repose angle of the powder, so as to ensure that the powder can flow out of the discharge cone 230 to the outside of the tank 100, avoid powder blockage, and reduce the residual rate of powder unloading.

[0064] In some embodiments, the included angle between the tangent line of any point on the discharge cone 230 and the horizontal plane in the plane where the axis of the discharge cone 230 is located is greater than the repose angle of the powder, so as to ensure the flowability of the powder, facilitate the unloading of the powder, and reduce the residual rate of powder unloading.

[0065] Referring to Figures 3 to 6 In the embodiment, the outer periphery of the discharge cone 230 is sealingly connected to the upper end of the connecting cylinder section 210, so as to improve the structural strength of the cone structure 200 and ensure the air tightness between the discharge cone 230 and the connecting cylinder section 210, thereby separating the pressure maintaining cavity 112 and the gas outlet cavity 240.

[0066] Referring to Figures 3 to 6 In the embodiment, the lower end of the discharge cone 230 is spaced apart from the bottom sealing plate 220 to form the air outlet 241. The outer peripheral wall of the discharge cone 230, the connecting cylinder section 210, and the bottom sealing plate 220 form the gas outlet cavity 240. The compressed gas in the external compressed gas source can enter the gas outlet cavity 240 through the cylinder section gas inlet 211, and then diffuse in the gas outlet cavity 240 and blow the powder through the air outlet 241. On the one hand, the gas output by the air outlet 241 can effectively improve the unloading efficiency of the powder and reduce the time cost. On the other hand, the gas output by the air outlet 241 can blow the powder at the bottom of the bottom sealing plate 220, so as to reduce the residual powder at the bottom of the bottom sealing plate 220 and reduce the residual rate of unloading.

[0067] The gas outlet cavity 240 is annular. The air outlet 241 between the bottom end of the discharge cone 230 and the bottom sealing plate 220 is annular. When the compressed gas is input into the gas outlet cavity 240 by the gas inlet structure 500, the compressed gas diffuses along the annular shape in the gas outlet cavity 240 to fill the gas outlet cavity 240. The gas in the gas outlet cavity 240 is then output through the annular air outlet 241, so that the gas output by the air outlet 241 blows the powder in an annular shape, thereby enabling the powder on the bottom sealing plate 220 to quickly pass through the first discharge port 221 and be output. After the powder is completely output, the residual powder on the bottom sealing plate 220 can be reduced, and the residual rate of powder unloading can be reduced.

[0068] Referring to Figures 3 to 6In the embodiment, the distance between the bottom sealing plate 220 and the discharge cone 230 gradually decreases in the direction towards the axis of the first discharge port 221. After the compressed gas diffuses in the gas outlet cavity 240, the gas can flow in the gas outlet cavity 240 towards the air outlet 241. According to Bernoulli's law, after the compressed gas flows in the gas outlet cavity 240 towards the air outlet 241, the flow rate of the gas output by the air outlet 241 increases, so that the gas can impact the powder and mix with the powder after being output to the outside of the tank body 100 through the first discharge port 221, thereby effectively improving the unloading efficiency of the powder and avoiding the unloading residual powder on the bottom sealing plate 220.

[0069] In some embodiments, the discharge cone 230 includes a first cone portion 231 and a second cone portion 232. The first cone portion 231 is located on the upper side of the second cone portion 232. The upper end of the first cone portion 231 is sealingly connected to the inner circumferential wall of the tank body 100. The second cone portion 232 is located in the connecting cylinder section 210. The upper end of the second cone portion 232 is sealingly connected to the lower end of the first cone portion 231, so that the powder can enter the second cone portion 232 from the first cone portion 231.

[0070] In other embodiments, the first cone portion 231 and the second cone portion 232 are smoothly connected.

[0071] In other embodiments, the connection between the first cone portion 231 and the second cone portion 232 is also sealingly connected to the upper end of the connecting cylinder section 210, thereby improving the structural strength and reliability of the cone structure 200.

[0072] In other embodiments, the upper end of the connecting cylinder section 210 can be sealingly connected to the outer periphery of the first cone portion 231 or the second cone portion 232.

[0073] In other embodiments, the first cone portion 231 and the second cone portion 232 are integrally formed.

[0074] In some embodiments, the axis of the first cone portion 231 and the axis of the second cone portion 232 are coaxially arranged.

[0075] Referring to Figures 3 to 6 In the embodiment, the storage and transportation device includes a plurality of cone structures 200. The plurality of cone structures 200 are arranged in sequence along the axial direction of the tank body 100. The opposite sides of the upper ends of the plurality of discharge cones 230 are sealingly connected, and the outer periphery of the upper ends of the plurality of discharge cones 230 is tightly connected to the inner circumferential wall of the tank body 100, so as to divide the accommodation space 110 into the upper powder storage and transportation cavity 111 and the lower pressure maintaining cavity 112.

[0076] Referring to Figures 5 to 6In the embodiment, the upper end of the discharge cone 230 is arc-shapedly extended beyond the inner wall of the tank body 100 to reduce the residual amount of the powder at the gap between the discharge cone 230 and the inner wall of the tank body 100.

[0077] Referring to Figure 5 In the embodiment, a plurality of partition plates 310 are arranged in the tank body 100. The partition plates 310 are located between the adjacent two cone structures 200. The partition plates 310 are arc-shapedly extended along the circumferential direction of the tank body 100. The inner periphery of the partition plates 310 is connected to the opposite sides of the adjacent two discharge cones 230, and the outer periphery of the partition plates 310 is connected to the partial inner peripheral wall of the tank body 100 relative to the pressure maintaining cavity 112. The partition plates 310 can effectively support the cone structures 200, thereby effectively guaranteeing the structural strength and stability of the storage and transportation equipment.

[0078] In some embodiments, at least one air hole 311 is arranged on the partial partition plates 310 located in the pressure maintaining cavity 112, so as to connect the partial pressure maintaining cavities 112 on both sides of the partition plates 310, guarantee the uniform pressure of the pressure maintaining cavities 112, and improve the structural strength and stability of the storage and transportation equipment.

[0079] Referring to Figure 6 and Figures 1 to 3 In the embodiment, the inner periphery of the partition plates 310 is upwardly extended beyond the cone structures 200. The adjacent two discharge cones 230 are located on both sides of the partition plates 310 and are closely connected to both sides of the partition plates 310.

[0080] In some embodiments, the opposite sides of the adjacent two discharge cones 230 are welded to the partition plates 310, so as to guarantee the connection strength and reliability of the discharge cones 230 and the partition plates 310.

[0081] Referring to Figure 5 , Figure 6 , Figures 1 to 4 In the embodiment, the storage and transportation equipment further comprises a discharge main pipe 400. The discharge main pipe 400 is located below all the cone structures 200 and extends along the axial direction of the tank body 100. The discharge main pipe 400 can be connected to the powder storage and transportation cavity 111 through the plurality of first discharge ports 221, so that the powder in the powder storage and transportation cavity 111 can be respectively output to the discharge main pipe 400 through the plurality of cone structures 200, and then discharged to the outside of the storage and transportation equipment through the discharge main pipe 400.

[0082] In some embodiments, a discharge valve is arranged between the discharge main pipe 400 and the bottom sealing plate 220, so as to control the discharge of the powder in the powder storage and transportation cavity 111 into the discharge main pipe 400 and improve the discharge efficiency of the powder.

[0083] Referring to Figures 1 to 4In the embodiment, the storage and transportation device further comprises an air inlet structure 500. The air inlet structure 500 comprises a first air inlet pipe 510, an air inlet end of the first air inlet pipe 510 being capable of being connected to an external compressed gas source, and an air outlet end of the first air inlet pipe 510 being connected to a cylinder air inlet 211 on the connecting cylinder 210, so as to input the compressed gas in the external compressed gas source into the air outlet cavity 240. The compressed gas in the air outlet cavity 240 can blow the powder through the air outlet 241, on the one hand, the unloading speed of the powder can be accelerated, and the unloading time cost of the powder can be reduced; on the other hand, the bottom sealing plate 220 can be blown after the unloading of the powder is completed, so as to reduce the unloading residual rate of the powder.

[0084] In some embodiments, the first air inlet pipe 510 is a plurality of first air inlet pipes 510, and the plurality of first air inlet pipes 510 are respectively arranged corresponding to the plurality of conical hopper structures 200, so that the compressed gas in the compressed gas source can enter the air outlet cavity 240 in the plurality of conical hopper structures 200, thereby facilitating the compressed gas to blow the powder at the plurality of conical hopper structures 200 respectively.

[0085] In some embodiments, the type of the compressed gas of the compressed gas source can be processed according to the type of the powder. When the powder is a conventional powder such as flour, cement and the like, the compressed gas can be compressed air.

[0086] In some embodiments, when the powder is a high-risk powder such as lithium sulfide and lithium hexafluorophosphate, the compressed gas can be compressed nitrogen, so as to avoid the lithium sulfide and lithium hexafluorophosphate from contacting with water and reacting. In other embodiments, the compressed gas can also be inert gas, so as to avoid the powder from contacting with water and reacting.

[0087] In some embodiments, the compressed gas source can also be connected to the outside of the tank 100, so as to move with the tank 100. That is, the storage and transportation device is provided with a compressed gas source, and the compressed gas is input into the tank 100, the conical hopper structure 200 and the discharge main pipe 400 through the air inlet structure 500.

[0088] Referring to Figures 1 to 4 In the embodiment, the air inlet structure 500 further comprises a second air inlet pipe 520, an air inlet end of the second air inlet pipe 520 being connected to the compressed gas source, and an air outlet end of the second air inlet pipe 520 being connected to the powder storage and transportation cavity 111 through a pressurized air inlet, so as to input the compressed gas into the powder storage and transportation cavity 111. When the powder is discharged, the second air inlet pipe 520 inputs the compressed gas in the compressed gas source into the powder storage and transportation cavity 111, and the compressed gas enters the powder storage and transportation cavity 111 to press the powder, so as to avoid the powder storage and transportation cavity 111 from being under negative pressure, to assist the powder to be discharged quickly, and to improve the unloading efficiency of the powder. Moreover, the compressed gas input into the powder storage and transportation cavity 111 can also protect the powder, avoid the powder in the powder storage and transportation cavity 111 from contacting with air, and ensure the safety and reliability of the powder.

[0089] Referring to Figures 1 to 4 In the embodiment, the air inlet structure 500 further comprises a third air inlet pipe 530, an air inlet end of the third air inlet pipe 530 is communicated with the compressed gas source, and an air outlet end of the third air inlet pipe 530 is communicated with the pressure maintaining cavity 112 through the pressure maintaining air inlet, so as to input the compressed gas into the pressure maintaining cavity 112.

[0090] When the powder is unloaded, the second air inlet pipe 520 inputs the compressed gas into the powder storage and transportation cavity 111, so that the compressed gas exerts pressure on the powder, so as to ensure that the powder is quickly unloaded. When the compressed gas exerts pressure on the powder, the powder is pressed on the discharge hopper 230. At this time, the third air inlet pipe 530 inputs the compressed gas into the pressure maintaining cavity 112, and the compressed gas input by the third air inlet pipe 530 exerts pressure on the discharge hopper 230.

[0091] The pressure exerted by the compressed gas in the pressure maintaining cavity 112 on the discharge hopper 230 is the same as the pressure exerted by the compressed gas in the powder storage and transportation cavity 111 on the discharge hopper 230, so that the containing space 110 in the tank body 100 is balanced as a whole, the discharge hopper 230 does not bear the internal pressure, and only bears the weight of the powder, avoiding the twist deformation of the connection between the discharge hopper 230 and the tank body 100, thereby effectively protecting the discharge hopper 230 and improving the structural strength and carrying capacity of the storage and transportation equipment.

[0092] In addition, the arrangement of the powder storage and transportation cavity 111 and the pressure maintaining cavity 112 can not only ensure the structural strength of the discharge hopper 230, but also reduce the thickness of the discharge hopper 230, reduce the weight of the storage and transportation equipment, and reduce the production cost of the storage and transportation equipment.

[0093] Referring to Figures 1 to 6 In the embodiment, the air inlet structure 500 further comprises a fourth air inlet pipe 540, an air outlet end of the fourth air inlet pipe 540 is communicated with one end of the discharge main pipe 400, so as to input the compressed gas into the discharge main pipe 400.

[0094] When the powder is unloaded, the powder in the powder storage and transportation cavity 111 enters the discharge main pipe 400 through the second discharge port 2321 and the first discharge port 221. The fourth air inlet pipe 540 inputs the compressed gas in the compressed gas source into the discharge main pipe 400, so as to push the powder to move in the discharge main pipe 400. In addition, the compressed gas output by the fourth air inlet pipe 540 can blow the powder in the discharge main pipe 400, avoid the residual of the powder in the discharge main pipe 400, reduce the residual rate of the unloading of the storage and transportation equipment, thereby avoiding the reaction of the powder and the air, and ensuring the life safety of the staff.

[0095] In some embodiments, the first air inlet pipe 510, the second air inlet pipe 520, the third air inlet pipe 530 and the fourth air inlet pipe 540 are provided with valves, so as to control the opening and closing of the first air inlet pipe 510, the second air inlet pipe 520, the third air inlet pipe 530 and the fourth air inlet pipe 540, thereby facilitating the control of the storage and transportation equipment by the staff.

[0096] In other embodiments, the valves can be pneumatic valves, electric valves or manual valves.

[0097] In some embodiments, the air inlet ends of the first air inlet pipe 510, the second air inlet pipe 520, the third air inlet pipe 530 and the fourth air inlet pipe 540 are connected to each other, so as to simplify the air inlet structure 500 and reduce the production cost of the air inlet structure 500.

[0098] In the present embodiment, the storage and transportation equipment can further comprise a frame 600. The frame 600 is arranged outside the tank body 100 and connected with the tank body 100, so as to support the tank body 100, thereby facilitating the placement and transportation of the tank body 100.

[0099] In some embodiments, the structure of the frame 600 can refer to the frame structure of the existing tank box, so as to facilitate the transportation and stacking of the storage and transportation equipment.

[0100] In some embodiments, the storage and transportation equipment can be a storage tank structure or a tank box structure, so as to realize the storage and transportation function of the powder.

[0101] In some embodiments, the tank body 100 can be provided with a gas release valve (not shown in the figure). When the tank body 100 is loaded with powder, the gas release valve can release part of the gas in the powder storage cavity 111 and / or the pressure maintaining cavity 112, thereby facilitating the loading, transportation and unloading of the powder.

[0102] In the present embodiment, the storage and transportation equipment can further be provided with a catwalk structure arranged on the top of the tank body 100, so as to facilitate the movement of the staff on the tank body 100. In some embodiments, the catwalk structure can be connected to the frame 600.

[0103] Referring to Figures 1 to 6 , the present application provides a powder storage and transportation equipment. The powder can enter the powder storage cavity 111 through the feeding valve and can be transported to the destination together with the storage and transportation equipment.

[0104] When the powder storage and transportation equipment reaches the destination, the first discharge port 221 is opened, so that the powder on the discharge cone 230 is output to the discharge main pipe 400 through the second discharge port 2321 and the first discharge port 221.

[0105] When the powder is unloaded, the first communication pipe, the second communication pipe, the third communication pipe and the fourth communication pipe are all opened. Part of the compressed gas in the compressed gas source can be input into the gas outlet cavity 240 through the first gas inlet pipe 510 and diffused along the annular gas outlet cavity 240. After the compressed gas is diffused in the gas outlet cavity 240, it is output through the annular air outlet 241 to blow off the powder on the bottom sealing plate 220, thereby improving the fluidization effect and flow speed of the powder, enabling the powder in the tank body 100 to be quickly discharged, and improving the unloading efficiency. Moreover, it can also avoid the powder remaining on the bottom sealing plate 220, reduce the unloading residual rate of the powder, and avoid the powder reacting with air to endanger the life and health safety of the workers.

[0106] Part of the compressed gas in the compressed gas source can be input into the powder storage and transportation cavity 111 through the second gas inlet pipe 520, so that the compressed gas source can hold the powder, thereby assisting the powder to be output onto the discharge main pipe 400 through the second discharge port 2321 and the first discharge port, effectively improving the fluidization effect of the powder and increasing the unloading efficiency of the powder. Moreover, it can also blow off the powder on the discharge cone 230, avoid the powder remaining on the discharge cone 230, and reduce the unloading residual rate of the storage and transportation equipment.

[0107] Part of the compressed gas in the compressed gas source can be input into the pressure maintaining cavity 112 through the third gas inlet pipe 530, so that the gas pressure in the pressure maintaining cavity 112 is balanced with the gas pressure in the powder storage and transportation cavity 111, thereby guaranteeing the structural strength and stability of the discharge cone 230.

[0108] Part of the compressed gas in the compressed gas source can also be input into the discharge main pipe 400 through the fourth gas inlet pipe 540 to push the material in the discharge main pipe 400 to move, assist the powder to be unloaded, and improve the unloading efficiency. Moreover, it can also blow off the powder in the discharge main pipe 400, thereby avoiding the powder remaining in the discharge main pipe 400 and reducing the unloading participation rate of the powder.

[0109] Referring to ​ The application also provides a tank truck, which comprises a vehicle body and the powder storage and transportation equipment as described above. The vehicle body is used to carry the powder storage and transportation equipment. The powder storage and transportation equipment is connected to the vehicle body to be able to move with the vehicle body, thereby facilitating the loading, transportation and unloading of the powder.

[0110] In some embodiments, the powder storage and transportation equipment is detachably connected to the vehicle body, thereby facilitating the transportation and maintenance of the powder storage and transportation equipment.

[0111] While the application has been described with reference to several exemplary embodiments, it will be understood that the terms used are intended to be illustrative and not limiting. It will be appreciated that variations and modifications of the application can be effected without departing from the spirit and scope of the application. Thus, it is intended that the application not be limited to the above described embodiments but encompass all such variations and modifications as fall within the scope of the appended claims.

Claims

1. A bulk material handling apparatus, characterized by, The application relates to a powder storage and transportation device. The device comprises a tank body extending in a horizontal direction, a containing space arranged in the tank body, a conical hopper structure arranged in the containing space, a connecting cylinder section extending in a vertical direction to pass through a bottom wall of the tank body, a bottom sealing plate sealingly connected to a bottom end of the connecting cylinder section, the bottom sealing plate gradually reducing in cross-sectional area from top to bottom, a first discharge port arranged at a bottom of the bottom sealing plate, the conical hopper structure gradually reducing in cross-sectional area from top to bottom, an upper end of the conical hopper structure sealingly connected to an inner circumferential wall of the tank body, a lower end of the conical hopper structure extending into the connecting cylinder section, the lower end of the conical hopper structure having a second discharge port, the lower end of the conical hopper structure being spaced apart from the bottom sealing plate to form an air outlet, and an air outlet cavity formed between an outer circumferential wall of the conical hopper structure, the connecting cylinder section and the bottom sealing plate. An air inlet structure is arranged on an outer side of the tank body, an air inlet end of the air inlet structure being used for connecting a compressed gas source, and an air outlet end of the air inlet structure being in communication with the air outlet cavity so that compressed gas in the compressed gas source can be input into the air outlet cavity. A cylinder section air inlet port is arranged on a circumferential wall of the connecting cylinder section relative to the air outlet cavity, the air inlet structure comprising a first air inlet pipe, and an air outlet end of the first air inlet pipe being in communication with the cylinder section air inlet port.

2. The bulk material handling apparatus of claim 1, wherein, In a direction towards an axis of the first discharge port, a distance between the bottom sealing plate and the conical hopper structure gradually reduces. The second discharge port has a larger diameter than the first discharge port.

3. The bulk material handling apparatus of claim 1, wherein, The axis of the first discharge port is coaxial with the axis of the second discharge port, and the air outlet formed between the lower end of the conical hopper structure and the bottom sealing plate is annular. The conical hopper structure divides the containing space into a powder storage and transportation cavity and a pressure maintaining cavity in a vertical direction, the powder storage and transportation cavity being arranged on an upper side of the conical hopper structure and used for containing the powder, and the pressure maintaining cavity being arranged on a lower side of the conical hopper structure.

4. The bulk material handling apparatus of claim 1, wherein, A pressurized air inlet port is arranged on a top of the tank body relative to the powder storage and transportation cavity. The air inlet structure further comprises a second air inlet pipe, and an air outlet end of the second air inlet pipe is in communication with the powder storage and transportation cavity through the pressurized air inlet port so as to input compressed gas into the powder storage and transportation cavity. An outer circumferential wall of the conical hopper structure is sealingly connected to an upper end of the connecting cylinder section, the pressure maintaining cavity is arranged separately from the air outlet cavity, and a pressure maintaining air inlet port is arranged on the tank body relative to the pressure maintaining cavity.

5. The bulk material handling apparatus of claim 4, wherein, The air inlet structure comprises a third air inlet pipe, and an air outlet end of the third air inlet pipe is in communication with the pressure maintaining cavity through the pressure maintaining air inlet port so as to input compressed gas into the pressure maintaining cavity. The storage and transportation device comprises a plurality of the conical hopper structures, and the plurality of the conical hopper structures are arranged in sequence in an axial direction of the tank body.

6. The bulk material handling apparatus of claim 4, wherein, Opposite sides of the plurality of the conical hopper structures are sealingly connected. The storage and transportation device further comprises a discharge main pipe arranged on a lower side of the conical hopper structure, the discharge main pipe extending in the axial direction of the tank body, and the discharge main pipe being in communication with the powder storage and transportation cavity through the first discharge port.

7. The bulk material handling apparatus of claim 6, wherein, ​ 8. The bulk material handling apparatus of claim 7, wherein, The air inlet structure further comprises a fourth air inlet pipe, an air outlet end of the fourth air inlet pipe being communicated with one end of the discharge main pipe to input compressed gas into the discharge main pipe.

9. The bulk material handling apparatus of claim 6, wherein, The tank body is provided with a plurality of partition plates, the partition plates being located between two adjacent conical hopper structures, the partition plates extending in an arc shape along the circumference of the tank body, inner circumferences of the partition plates being connected to opposite sides of two adjacent discharge conical hoppers, outer circumferences of the partition plates being connected to inner circumferential walls of the tank body relative to the pressure maintaining cavity; at least one air vent is formed in the partition plates located in the pressure maintaining cavity.

10. The bulk material handling apparatus of claim 1, wherein, An included angle between the discharge conical hopper and a horizontal plane is greater than a repose angle of the powder.

11. The bulk material handling apparatus of claim 1, wherein, The storage and transportation equipment further comprises a frame, the frame being arranged outside the tank body and connected to the tank body to support the tank body.

12. A tank truck characterized in that Comprise: A vehicle body; The powder storage and transportation equipment as claimed in any one of claims 1 to 11 is connected to the vehicle body to be able to move along with the vehicle body.

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