A fluidized bed device for a powder and particle material transport vehicle

Abstract

The present invention relates to the technical field of fluidized equipment for powder and particle materials, and specifically to a fluidized bed device for a powder and particle material transport vehicle, which aims to solve the blockage problem caused by the inability to discharge dust particles generated by filtration in the prior art. The device includes a feed pipe, an air inlet pipe and one or more filter units. Each filter unit includes a cylindrical shell, in which an air inlet cylinder section, a filter cylinder section and an air outlet cylinder section are arranged, and a curved filter screen and a discharge ring cavity are installed in the filter cylinder section. An inner sleeve and an air bag ring are installed in the air inlet cylinder section, and the air bag ring is connected to a bypass air duct through an air bag air duct. The discharge ring cavity is provided with a vent and a discharge port, and the vent and the discharge port are respectively provided with a vent valve and a dust discharge valve. The present invention realizes automatic cleaning and discharge of dust by controlling the curved filter screen, the air bag ring, and the electromagnetic pulse valve. The present invention is suitable for various powder and particle material transport vehicles, and has the characteristics of high efficiency, intelligence and reliability.

Description

Technical Field

[0001] The invention relates to the technical field of fluidized unloading equipment for powder and granular materials, and in particular to a fluidized bed device of a powder and granular material transport vehicle. Background Art

[0002] The information disclosed in the background of the invention is only intended to enhance the understanding of the overall background of the invention and should not be necessarily regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0003] Fluidized bed is a reactor that uses gas or liquid to pass through a granular solid layer to make solid particles in a suspended motion state and carry out a gas-solid phase reaction process or a liquid-solid phase reaction process. It is used in powder and particle material transport vehicles as a key component to improve material fluidity and prevent blockage. It introduces gas (usually compressed air) into the material to suspend the material particles and form a liquid-like state, thereby greatly improving the material's fluidity and transportation efficiency.

[0004] Chinese patent CN203294808U discloses a tail wind-assist device for unloading of a powder and particle material transport vehicle. Although the technical solution allows compressed air to enter the wind-assist device from the air intake pipe during the unloading process, and enter the unloading pipe from the gap between the inner pipe and the rear flange, so that the blowing airflow performs circumferential rotation while axially linearly moving, so that the blowing airflow plays a role in assisting unloading, the air passing through the air intake pipe may contain larger particles, which may affect the normal operation of the device after entering the inner pipe. Chinese patent CN114604637B discloses a fluidized bed device for a powder and particle material transport vehicle, which improves the above problem by setting a filter component and a screen cleaning component. However, this patent still has a major drawback, that is, the particles attached to one side of the filter screen produced by the filtration cannot be discharged, which will still cause blockage, thereby affecting the normal unloading work. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a fluidized bed device for a powder and particle material transport vehicle, aiming to solve the problem in the prior art that the particles generated by filtration cannot be discharged during the fluidized unloading process of the powder and particle material transport vehicle, thereby solving the problem of unloading blockage from the fundamental point of view.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A fluidized bed device for a powder and particle material transport vehicle comprises a feed pipe, wherein the feed pipe is provided with an air intake pipe, and the air intake pipe is connected to one or more filter units;

[0008] The filter unit comprises a cylindrical shell, and the cylindrical shell comprises an air inlet cylinder section, a filter cylinder section and an air outlet cylinder section;

[0009] An inner sleeve is installed in the air inlet cylinder section, and an air bag ring is fixed to one end of the inner sleeve close to the filter cylinder section;

[0010] A filter screen is installed in the filter cylinder section, and the filter screen is a curved filter screen with a convex side close to the air intake cylinder section. The filter cylinder section is provided with a discharge ring cavity on the periphery of the curved filter screen;

[0011] The cylindrical shell is provided with at least one bypass air passage whose two ends are connected to the air inlet section and the air outlet section respectively, the bypass air passage is provided with a bypass inlet in the air inlet section, a bypass outlet in the air outlet section, a bypass filter screen at the bypass inlet, and an exhaust valve at the bypass outlet;

[0012] The inner sleeve is provided with at least one airbag airway for inflating and deflation of the airbag ring, and the airbag airways are all communicated with the corresponding bypass airways;

[0013] The discharge ring cavity is provided with more than one vent and discharge port, the vent is communicated with the corresponding bypass airway through the corresponding branch airway, the discharge ports are all led to the outside of the cylindrical shell, the vent is provided with a vent valve, and the discharge port is provided with a dust exhaust valve;

[0014] An exhaust air passage is reserved between the airbag ring and the bottom of the filter surface of the curved filter screen. When the airbag ring is filled with air, the exhaust air passage is closed, thereby closing the inner side of the exhaust ring cavity.

[0015] The air inlet section and / or the exhaust annular cavity are also provided with a detection sensor for monitoring the air pressure in the exhaust annular cavity and the air inlet section, and whether the exhaust airway is closed;

[0016] Before the exhaust airway is closed, the exhaust valve and the vent valve are in an open state;

[0017] When the detection sensor monitors that the air pressure in the air inlet cylinder and / or the exhaust ring cavity reaches the set value, the exhaust valve and the vent valve are closed, thereby closing the exhaust airway; at this time, the dust exhaust valve is opened, and closed after the dust is discharged, and then the exhaust valve and the vent valve are opened again; this reciprocating process is repeated to achieve automatic cleaning and discharge of dust.

[0018] Preferably, the exhaust valve, ventilation valve and dust exhaust valve are all electromagnetic pulse valves electrically connected to the controller.

[0019] Preferably, the detection sensor includes an air pressure sensor and a dust sensor which are arranged in the air intake cylinder section and the exhaust annular cavity and are electrically connected to the controller.

[0020] Preferably, the ventilation valve is provided with a ventilation filter.

[0021] Preferably, the inner sleeve is provided with a sliding block, and the inner side wall of the air intake cylinder section is provided with a sliding groove adapted to the sliding block for airway guiding and limiting purposes.

[0022] Preferably, the ends of the air inlet cylinder section, the air outlet cylinder section and the inner sleeve are all provided with end flanges, and a sealing gasket is provided between the inner sleeve and the end flange of the air inlet cylinder section.

[0023] Preferably, the arcuate filter comprises an arcuate filter body and a mounting edge, and a side of the mounting edge protruding close to the arcuate filter body is provided with an arcuate positioning groove for cooperating with the airbag ring.

[0024] Preferably, a plurality of countersunk holes for cooperating with threaded fixings for installation are provided in the arc surface positioning groove, and the arc surface filter is fixedly installed on the top of the discharge ring cavity through the installation edge.

[0025] Preferably, the feed pipe includes a front flange, a rear flange, an outer pipe, an inner pipe, and an air inlet pipe. The front flange is connected to the rear flange through an outer pipe. An air flow space is provided between the inner pipe and the outer pipe. The two ends of the inner pipe and the outer pipe are respectively closed and connected to the front flange and the rear flange. The air flow space is provided with a plurality of air inlets, and each air inlet is provided with a guide nozzle. The outer pipe is provided with an air inlet hole communicating with the air flow space, and the air inlet hole is connected to the air inlet pipe.

[0026] Preferably, the opening direction of the guide nozzle is consistent with the conveying direction of the conveying pipe;

[0027] The opening aperture of the guide nozzle gradually increases along the opening direction.

[0028] The present invention has at least the following beneficial effects:

[0029] The prior art usually relies on filters to block large particles, but these filters are prone to accumulate a lot of dust after long-term use, resulting in reduced filtration efficiency or even complete blockage. Compared with the prior art, the present invention introduces an active cleaning mechanism consisting of an airbag ring and an electromagnetic pulse valve. When the pressure difference before and after the filter increases or too much dust accumulates, the cleaning program is automatically started to discharge the dust particles accumulated in the discharge ring cavity, fundamentally solving the blockage problem.

[0030] In traditional technology, once a blockage occurs, it is often necessary to stop the machine for manual cleaning, which is not only time-consuming and labor-intensive, but may also cause production delays. The automatic cleaning function of the present invention can be completed without affecting normal operations, greatly reducing the downtime and maintenance costs caused by blockage.

[0031] Moreover, continuous blockage will accelerate the wear of the equipment and shorten its service life. The regular automatic cleaning function of the present invention helps to keep the interior of the equipment clean and reduce wear, thereby extending the service life of the equipment. At the same time, by removing dust in a timely manner, the airflow is guaranteed to be unobstructed, thereby improving the continuity and stability of the powder and particle material transportation process, which is crucial to ensuring production efficiency.

[0032] The filter unit in the present invention allows for dynamic adjustment of the filter strength according to the actual working conditions, that is, the opening and closing state of the exhaust airway is changed by the expansion and contraction of the airbag ring. When a high dust concentration is detected, the exhaust airway can be closed to concentrate on removing the dust; when the dust concentration is low, the exhaust airway is kept open to maintain a high air flow rate, thereby achieving dynamic adjustment of the filter efficiency and ensuring efficient operation of the entire device. Moreover, the filter unit of the present invention adopts a modular design, and a multi-stage filter unit can be set to purify step by step to improve the filter efficiency.

[0033] The device of the present invention integrates detection sensors, such as air pressure sensors and dust sensors, which can monitor the working status of the system in real time and automatically adjust the opening and closing status of the valve according to the monitoring results, thereby realizing the automatic operation of the entire system, reducing the need for manual intervention and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 is a schematic diagram of the internal structure of the filtration unit;

[0036] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the curved filter;

[0038] Figure 5 Schematic diagram of the internal structure of the feed pipe.

[0039] The reference numerals are as follows:

[0040] 100, feed pipe; 110, air inlet pipe; 120, front flange; 130, rear flange; 140, inner pipe; 150, outer pipe; 160, air flow space; 170, air inlet; 180, flow guide nozzle; 200, filter unit; 210, air outlet section; 211, exhaust valve; 220, filter section; 221, discharge ring cavity; 222, detection sensor; 223, discharge outlet; 2231 , dust exhaust valve; 230, air intake cylinder section; 240, inner sleeve; 241, airbag airway; 242, airbag ring; 243, slider; 250, arc filter; 251, installation edge; 2511, arc positioning groove; 2512, countersunk hole; 252, arc filter body; 260, bypass inlet; 270, bypass airway; 280, bronchial duct; 281, ventilation valve; 290, sealing gasket. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0042] Figures 1 to 5 A fluidized bed device of a powder and particle material transport vehicle is shown, including a feed pipe 100, wherein the feed pipe 100 is provided with an air intake pipe 110, and the air intake pipe 110 is connected to one or more filter units 200; the filtering strength of each filter unit 200 can be increased in sequence for step-by-step filtering.

[0043] The filter unit 200 includes a cylindrical shell, which includes an air inlet cylinder section 230, a filter cylinder section 220 and an air outlet cylinder section 210; an inner sleeve 240 is installed in the air inlet cylinder section 230, and an air bag ring 242 is fixed to one end of the inner sleeve 240 close to the filter cylinder section 220. The function of the inner sleeve 240 is to install the air bag ring 242 and provide basic positioning for it.

[0044] A filter screen is installed in the filter cylinder section 220, and the filter screen is a curved filter screen 250 with a convex side close to the air inlet cylinder section 230. The filter cylinder section 220 is provided with a discharge ring cavity 221 on the periphery of the curved filter screen 250. Therefore, due to the provision of the discharge ring cavity 221, the diameter of the filter cylinder section 220 is larger than that of the air inlet cylinder section 230 and the air outlet cylinder section 210.

[0045] The cylindrical shell is provided with at least one bypass air duct 270 whose two ends are respectively connected to the air inlet section 230 and the air outlet section 210. The bypass air duct 270 is provided with a bypass inlet 260 in the air inlet section 230 and a bypass outlet in the air outlet section 210. The bypass inlet 260 is provided with a bypass filter, and the bypass outlet is provided with an exhaust valve 211.

[0046] The inner sleeve 240 is provided with at least one airbag air passage 241 for inflating and deflating the airbag ring 242 , and the airbag air passages 241 are all communicated with the corresponding bypass air passages 270 .

[0047] The discharge annular cavity 221 is provided with more than one vent and discharge port 223, the vent is communicated with the corresponding bypass airway 270 through the corresponding branch airway 280, the discharge ports 223 lead to the outside of the cylindrical shell, the vent is provided with a vent valve 281, the vent valve 281 is provided with a ventilation filter, the discharge port 223 is provided with a dust exhaust valve 2231, the exhaust valve 211, the vent valve 281 and the dust exhaust valve 2231 are all electromagnetic pulse valves electrically connected to the controller.

[0048] An exhaust air passage is reserved between the airbag ring 242 and the bottom of the filter surface of the arc filter 250. When the airbag ring 242 is filled with air, the exhaust air passage is closed, thereby closing the inner side of the exhaust ring cavity 221.

[0049] The air intake cylinder section 230 and / or the exhaust annular cavity 221 are also provided with a detection sensor 222 for monitoring the air pressure in the exhaust annular cavity 221 and the air intake cylinder section 230, and whether the exhaust airway is closed; the detection sensor 222 includes an air pressure sensor and a dust sensor which are arranged in the air intake cylinder section 230 and the exhaust annular cavity 221 and electrically connected to the controller.

[0050] Before the exhaust airway is closed, the exhaust valve 211 and the vent valve are in an open state;

[0051] When the detection sensor 222 monitors that the air pressure in the air inlet cylinder and / or the exhaust ring cavity 221 reaches the set value, the exhaust valve 211 and the ventilation valve are closed, thereby closing the exhaust airway; at this time, the dust exhaust valve 2231 is opened, and closed after the dust is discharged, and then the exhaust valve 211 and the ventilation valve are opened again; this reciprocating process is repeated to achieve automatic cleaning and discharge of dust.

[0052] In order to facilitate the installation of the inner sleeve 240, the inner sleeve 240 is provided with a slider 243, and the inner wall of the air intake cylinder section 230 is provided with a slide groove adapted to the slider 243 for airway guidance and limiting functions.

[0053] In order to facilitate the installation, connection and sealing of the filter unit 200 , the ends of the air inlet cylinder section 230 , the air outlet cylinder section 210 and the inner sleeve 240 are all provided with end flanges, and a sealing gasket 290 is provided between the end flanges of the inner sleeve 240 and the air inlet cylinder section 230 .

[0054] The specific structure of the arc filter 250 includes a arc filter body 252 and a mounting edge 251. One special shape of the arc filter body 252 may be a sphere. In order to provide further positioning for the airbag ring 242 filled with air, the mounting edge 251 is provided with an arc positioning groove 2511 on the protruding side close to the arc filter body 252 to cooperate with the airbag ring 242. The arc positioning groove 2511 is arranged in an arc shape to avoid adverse effects on the slippage of dust.

[0055] The arc surface positioning groove 2511 is provided with a plurality of countersunk holes 2512 for cooperating with the threaded fixing parts to prevent the fixing parts from interfering with the airbag ring 242 . The arc surface filter 250 is fixedly installed on the top of the discharge ring cavity 221 through the installation edge 251 .

[0056] The present invention realizes automatic cleaning and discharge of dust by using the arc filter mesh in conjunction with the charging and discharging of the airbag ring 242 and the control of each electromagnetic pulse valve. The present invention is suitable for various powder and particle material transport vehicles and has the characteristics of high efficiency, intelligence and reliability.

[0057] The process of working principle is described as follows:

[0058] Due to the impact of the airflow, the surface attached to the convex side of the curved (or spherical) filter screen is subjected to a force that causes it to slide toward the bottom of the filter surface (from the top downward);

[0059] At the same time, the exhaust valve 211 and the vent valve 281 are both in an open state when there are fewer dust particles. Since there is less dust, the airflow passes through the curved filter 250 more smoothly, so the air pressure in the air inlet section 230 is relatively small, and only a very small part of the airflow enters the bypass airway 270 and the airbag airway 241 through the bypass inlet 260. At this time, the airflow enters the airbag ring 242 only when the airbag ring 242 is slightly opened, and the exhaust airway is kept in an open state; moreover, after the dust-laden airflow that crosses the exhaust airway enters the exhaust annular cavity 221, the dust remains in the exhaust annular cavity 221, and the remaining airflow passes through the branch airway 280 and the bypass airway 270, and enters the air outlet section 210 on the other side of the curved filter 250 through the exhaust valve;

[0060] The air pressure in the air intake section 230 and / or the exhaust annular cavity 221 increases with the increase of dust particles attached to the surface of the curved filter 250. At the same time, the dust particle content in the exhaust annular cavity 221 is also relatively high. When the detection sensor 222 detects that the air pressure increases or the dust content (in the exhaust annular cavity 221) increases to reach the set value, the exhaust valve 211 and the ventilation valve 281 are closed. At this time, due to the different air pressures on both sides of the curved filter 250 (the air pressure in the air intake section 230 is amplified, and the air pressure in the air outlet section 210 is low), the airbag ring 242 is close to the curved filter 250, thereby closing the exhaust airway. After the exhaust airway is closed, the dust exhaust valve 2231 is quickly opened and closed (it is best to use a pulse valve) to quickly discharge the dust particles in the exhaust annular cavity 221.

[0061] Then, the exhaust valve 211 and the vent valve are opened, the air pressure in the airbag ring 242 is reduced, the exhaust airway is opened, and the dust particles attached to the surface of the curved filter 250 quickly enter the exhaust ring cavity 221, and the curved filter 250 is ventilated smoothly. In this way, the dust is automatically cleaned and discharged.

[0062] In another embodiment, the structure of the feed conveying pipe 100 is further designed as follows: the feed conveying pipe 100 includes a front flange 120, a rear flange 130, an outer tube 150, an inner tube 140, and an air intake pipe 110, the front flange 120 and the rear flange 130 are connected via the outer tube 150, an air flow space 160 is provided between the inner tube 140 and the outer tube 150, the two ends of the inner tube 140 and the outer tube 150 are respectively closed and connected to the front flange 120 and the rear flange 130, the air flow space 160 is provided with a plurality of air inlets 170, each of the air inlets 170 is provided with a guide nozzle 180; the outer tube 150 is provided with an air inlet hole communicating with the air flow space 160, and the air inlet hole is connected to the air intake pipe 110.

[0063] The guide nozzle 180 has two functions: first, to guide the airflow; second, to guide the material and cooperate with the guide airflow to improve the fluidization of the powder and granular material.

[0064] The specific description is as follows: in order to improve the fluidization effect of powder and granular materials, the opening direction of the guide nozzle 180 is consistent with the conveying direction of the conveying pipe 100, and the opening aperture of the guide nozzle 180 gradually increases along the opening direction, so that the airflow tends to be ejected into the pipe, and the ejection path just enters the gap created by the material diversion; the two work together and cooperate with each other to improve the fluidization of the powder and granular materials, which is beneficial to the unloading and conveying of the powder and granular materials.

[0065] Since the filter unit 200 of the present invention adopts a modular design, a multi-stage filter unit 200 can be set to purify step by step and improve the filtration efficiency. Specifically, by setting a plurality of filter units 200, each unit can undertake different filtering tasks. For example, the first-stage filter unit 200 can be used to intercept larger particles, and the subsequent filter units 200 are responsible for finer dust particles. In this way, each level of the filter unit 200 can play a role within the scope of its best expertise and jointly achieve efficient step-by-step purification. At the same time, since large particles are intercepted by the front filter unit 200, the load faced by the subsequent filter unit 200 is reduced, which helps to extend the service life of a single filter unit 200, reduce the frequency of replacement, and reduce maintenance costs.

[0066] Moreover, the design of the multi-stage filter unit 200 enables the present invention to adapt to powder and particle materials of different types and characteristics. For some materials containing more large particles, the number of pre-filter units 200 can be increased; and for materials containing more fine powder, the number of post-filter units 200 can be increased to achieve the best filtering effect. Moreover, the filtering strength of each filter unit 200 can be adjusted according to actual conditions, for example, by changing the inflation pressure of the airbag ring 242 to adjust the opening and closing state of the exhaust airway to meet the needs under different working conditions.

[0067] At the same time, the multi-stage filter unit 200 is equivalent to setting up multiple lines of defense for the system. Even if a filter unit 200 fails or is blocked, other filter units 200 can continue to work, reducing the risk of the entire system being completely paralyzed due to the failure of a single filter unit 200. Through multi-stage filtration, the particles in the airflow entering the system can be evenly distributed to each filter unit 200, avoiding a single filter unit 200 from being subjected to excessive pressure, thereby reducing the possibility of blockage.

[0068] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0069] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0070] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fluidized bed device for a powder and particle material transport vehicle, comprising a feed pipe, wherein the feed pipe is provided with an air intake pipe, and the air intake pipe is connected to one or more filter units; characterized in that: The filter unit comprises a cylindrical shell, and the cylindrical shell comprises an air inlet cylinder section, a filter cylinder section and an air outlet cylinder section; An inner sleeve is installed in the air inlet cylinder section, and an air bag ring is fixed to one end of the inner sleeve close to the filter cylinder section; A filter screen is installed in the filter cylinder section, and the filter screen is a curved filter screen with a convex side close to the air intake cylinder section. The filter cylinder section is provided with a discharge ring cavity on the periphery of the curved filter screen; The cylindrical shell is provided with at least one bypass air passage whose two ends are connected to the air inlet section and the air outlet section respectively, the bypass air passage is provided with a bypass inlet in the air inlet section, a bypass outlet in the air outlet section, a bypass filter screen at the bypass inlet, and an exhaust valve at the bypass outlet; The inner sleeve is provided with at least one airbag airway for inflating and deflation of the airbag ring, and the airbag airways are all communicated with the corresponding bypass airways; The discharge ring cavity is provided with more than one vent and discharge port, the vent is communicated with the corresponding bypass airway through the corresponding branch airway, the discharge ports are all led to the outside of the cylindrical shell, the vent is provided with a vent valve, and the discharge port is provided with a dust exhaust valve; An exhaust air passage is reserved between the airbag ring and the bottom of the filter surface of the curved filter screen. When the airbag ring is filled with air, the exhaust air passage is closed, thereby closing the inner side of the exhaust ring cavity. The air inlet section and / or the exhaust annular cavity are also provided with a detection sensor for monitoring the air pressure in the exhaust annular cavity and the air inlet section, and whether the exhaust airway is closed; Before the exhaust airway is closed, the exhaust valve and the vent valve are in an open state; When the detection sensor monitors that the air pressure in the air inlet cylinder and / or the exhaust ring cavity reaches the set value, the exhaust valve and the vent valve are closed, thereby closing the exhaust airway; at this time, the dust exhaust valve is opened, and closed after the dust is discharged, and then the exhaust valve and the vent valve are opened again; this reciprocating process is repeated to achieve automatic cleaning and discharge of dust.

2. The fluidized bed device of the powder and particle material transport vehicle as claimed in claim 1, characterized in that: The exhaust valve, ventilation valve and dust exhaust valve are all electromagnetic pulse valves electrically connected to the controller.

3. The fluidized bed device of the powder and particle material transport vehicle as claimed in claim 1, characterized in that: The detection sensor comprises an air pressure sensor and a dust sensor which are arranged in the air intake cylinder section and the exhaust ring cavity and are electrically connected to the controller.

4. The fluidized bed device for a powder and particle material transport vehicle as claimed in claim 1, characterized in that: The ventilation valve is provided with a ventilation filter.

5. The fluidized bed device for a powder and particle material transport vehicle as claimed in claim 1, characterized in that: The inner sleeve is provided with a sliding block, and the inner side wall of the air intake cylinder section is provided with a sliding groove adapted to the sliding block for airway guiding and limiting functions.

6. The fluidized bed device for a powder and particle material transport vehicle as claimed in claim 1, characterized in that: The ends of the air inlet section, the air outlet section and the inner sleeve are all provided with end flanges, and a sealing gasket is provided between the inner sleeve and the end flange of the air inlet section.

7. The fluidized bed device for a powder and particle material transport vehicle as claimed in claim 1, characterized in that: The arc filter comprises an arc filter body and an installation edge, and a side of the installation edge protruding close to the arc filter body is provided with an arc positioning groove for matching with the airbag ring.

8. The fluidized bed device of the powder and particle material transport vehicle as claimed in claim 7, characterized in that: A plurality of countersunk holes for cooperating with the threaded fixing parts are provided in the arc surface positioning groove, and the arc surface filter is fixedly installed on the top of the discharge ring cavity through the installation edge.

9. The fluidized bed device of a powder and particle material transport vehicle as claimed in any one of claims 1 to 8, characterized in that: The conveying pipe includes a front flange, a rear flange, an outer pipe, an inner pipe, and an air intake pipe. The front flange is connected to the rear flange through the outer pipe. An air flow space is provided between the inner pipe and the outer pipe. The two ends of the inner pipe and the outer pipe are respectively closed and connected to the front flange and the rear flange. The air flow space is provided with a plurality of air inlets, and each air inlet is provided with a guide nozzle. The outer pipe is provided with an air inlet hole communicating with the air flow space, and the air inlet hole is connected to the air intake pipe.

10. The fluidized bed device of the powder and particle material transport vehicle as claimed in claim 9, characterized in that: The opening direction of the guide nozzle is consistent with the conveying direction of the conveying pipe; The opening aperture of the guide nozzle gradually increases along the opening direction.

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