Powder fluidization conveyor

Abstract

The utility model relates to the technical field of fluidizers, in particular to a powder fluidization conveyor which comprises a fluidizer, a material storage pressurizing bin is arranged at the top of the fluidizer, a powder tank is arranged on one side of the fluidizer, and the material storage pressurizing bin is connected with the powder tank through a conveying system. According to the improved positions of the conveyor and the gas conveying port, compressed air can enter the upper cavity in an optimal path, efficiently act on the vibrating diaphragm and uniformly penetrate through the vibrating diaphragm from all directions to be in contact with powder, gas-solid mixing is further enhanced through a micropore structure, the problem of excessive or insufficient local fluidization is avoided, and the gas-solid mixing effect is improved. The inner wall of the upper cavity is inclined, the position of the axis point of the through opening is reasonably designed, materials can be guided to smoothly reach a fluidization key area, material residues and blockage are reduced, a gas conveying pipe and a powder conveying pipe are separated through a pipeline of the conveying system, mutual interference of gas and powder in the conveying process is avoided, and the conveying efficiency is improved. And it is ensured that gas can stably provide power for fluidization.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluidizer technical field, concretely is powder fluidization conveyor. BACKGROUND

[0002] Powder conveying refers to the process of transporting powder or granular materials from one place to another, involving a variety of equipment.

[0003] Powder conveying is generally composed of an air inlet system, a fluidization bin, a conveying pipeline, and a control system, while the fluidizer is the core component of the powder conveying system. It is a device that can make solid particles appear similar to fluid state, and plays an important role in various processes in different industries.

[0004] The inventor found that the existing technology has the following problems in the process of implementing the utility model: 1. The gas distribution device of the existing fluidizer is not perfect, and the gas cannot uniformly contact the powder, resulting in uneven powder fluidization, affecting the subsequent conveying process; 2. The connection between the components of the existing fluidizer is not tight or the overall performance is poor, which can cause loosening, leakage and other problems during long-term use, affecting the fluidization effect and normal operation of the equipment, and the powder conveying needs to be manually opened. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a powder fluidization conveyor to solve the problem of uneven powder fluidization caused by the imperfect gas distribution device of the fluidizer and the problem of poor connection between the components of the fluidizer. To achieve the above purpose, the utility model provides the following technical scheme: a powder fluidization conveyor, comprising a fluidizer, a storage pressurized bin is arranged on the top of the fluidizer, a powder tank is arranged on one side of the fluidizer, and the storage pressurized bin and the powder tank are connected by a conveying system.

[0006] The fluidizer is composed of an upper cavity and a lower cavity, the inner wall of the upper cavity is provided with a diaphragm, and the outer wall of the upper cavity is provided with a gas conveying port.

[0007] Further preferably, the upper cavity, lower cavity, diaphragm and gas conveying port are integrally connected, the upper cavity and lower cavity are in communication, and the gas conveying port and the bottom of the lower cavity are threadedly connected with the inner pipeline of the conveying system through the flange plate and flange bolt.

[0008] Further preferably, the gas conveying port is located in the interval between the fluidizer and the upper cavity, the diaphragm is evenly distributed on the inner wall of the upper cavity in the form of an equiangular ring, and the surface of the diaphragm is provided with a microporous structure.

[0009] Further preferably, the top of the upper cavity is provided with an annular surrounding edge, and the surface of the surrounding edge is provided with mounting holes in annular distribution, and the upper cavity is connected with the bottom of the storage pressurizing bin through the mounting holes in the top thereof and the flange and flange bolt.

[0010] Further preferably, the inner wall of the upper cavity is inclined from the edge to one end of the through opening thereof, and the axial center point of the through opening is located at the same horizontal position as the axial center points of the upper cavity and the lower cavity.

[0011] Further preferably, one side of the storage pressurizing bin and the top of the powder tank are provided with a pipe opening for conveying powder, and the powder tank is provided with a pressure sensor.

[0012] Further preferably, the conveying system is composed of a conveying pipeline and a high-pressure pneumatic valve, and the conveying pipeline is divided into a gas conveying pipe and a powder conveying pipe, wherein the gas conveying pipe is connected with the gas conveying opening and an external compressor, the powder conveying pipe is connected with the pipe opening for conveying powder on one side of the storage pressurizing bin, and the bottom of the storage pressurizing bin is connected with the upper cavity of the fluidizer, and the fluidizer is connected with the pipe opening for conveying powder on the top of the powder tank through the lower cavity in the bottom thereof and the powder conveying pipe.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] In the present application, the diaphragm in the fluidizer is in equiangular annular distribution and has a microporous structure, and the gas conveying opening is reasonably positioned, so that the compressed air can enter the upper cavity in the optimal path. This structure enables the gas to act on the diaphragm efficiently after entering the cavity, and the gas uniformly passes through the diaphragm from all directions to contact the powder, further enhances the gas-solid mixing by using the microporous structure, avoids the problems of excessive or insufficient local fluidization, realizes the uniform fluidization of the powder on the entire upper cavity cross section, ensures that the powder is more uniform and stable in the fluidized state, and provides a good prerequisite for the subsequent conveying process. The inner wall of the upper cavity is inclined and the axial center point of the through opening is reasonably designed, which not only can guide the material to smoothly reach the fluidization key area, reduce material residues and blockage, but also can make the powder-gas mixed flow generated by fluidization smoothly transition between the upper cavity and the lower cavity, reduce turbulence and shear force on the material, and ensure the integrity of the material and improve the fluidization quality of the material.

[0015] The pipeline of the conveying system separates the gas conveying pipe and the powder conveying pipe, avoids mutual interference of the gas and the powder in the conveying process, ensures that the gas can stably provide power for fluidization and the powder can be orderly conveyed, the material is sent to the storage pressure increasing bin through the powder conveying pipe from the front end equipment, is fluidized through the fluidizer, passes through the upper cavity and the lower cavity, and is finally conveyed to the powder tank through the powder conveying pipe, the whole process is coherent and smooth, seamless connection of the powder material from storage to final storage is ensured, the possibility of blockage and leakage is reduced, and the conveying efficiency is improved, remote automatic operation can be realized under cooperation of the external control main body, the operator can control the opening and closing of the high pressure pneumatic valve through the external control main body, the cumbersome and untimely manual operation is avoided, the continuous conveying of the material is ensured, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the fluidizer of the utility model;

[0017] Figure 2 It is a structure schematic view of the fluidizer of the utility model;

[0018] Figure 3 It is a structure schematic view of the fluidizer and the storage pressure increasing bin of the utility model;

[0019] Figure 4 It is a structure schematic view of the conveying system and the powder tank of the utility model.

[0020] In the drawing: 1, fluidizer;101, upper cavity;102, lower cavity;103, diaphragm;104, gas conveying port;2, storage pressure increasing bin;3, powder tank;4, conveying system;5, high pressure pneumatic valve. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill workers in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figures 1 to 4 The utility model provides a technical scheme: powder fluidization conveyor, including fluidizer 1, the top of fluidizer 1 is provided with storage pressure increasing bin 2, one side of fluidizer 1 is provided with powder tank 3, and storage pressure increasing bin 2 and powder tank 3 are connected through conveying system 4.

[0023] Fluidizer 1 is composed of upper cavity 101 and lower cavity 102, the inner wall of upper cavity 101 is provided with diaphragm 103, and the outer wall of upper cavity 101 is provided with gas conveying port 104 on one side.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the upper cavity 101, lower cavity 102, diaphragm 103, and gas delivery port 104 are integrally connected, and the upper cavity 101 and lower cavity 102 are interconnected. The bottoms of the gas delivery port 104 and lower cavity 102 are connected to the pipeline in the conveying system 4 via flanges and flange bolts. The integral connection makes the various key components of the fluidizer 1 form a solid whole, reducing the risk of loosening caused by loose connections between components. It can withstand certain pressure changes and mechanical vibrations, and work stably for a long time. It reduces the probability of equipment failure caused by structural instability and extends the service life of the equipment.

[0025] In this embodiment, as Figure 1 and Figure 2 As shown, the gas inlet 104 is located within the space between the fluidizer 1 and the upper cavity 101, and the diaphragm 103 is distributed in an equiangular ring on the inner wall of the upper cavity 101, with microporous structures formed on its surface. The position of the gas inlet 104 allows externally input compressed air to enter the upper cavity 101 via a more efficient path, enabling the gas to act more directly on the diaphragm 103, reducing energy loss and pressure loss during transmission, and ensuring that the gas can reach the diaphragm 103 efficiently, providing sufficient gas for subsequent mixing with the powder. Stable power and the distribution of the diaphragm 103 ensure that compressed air, after entering the upper cavity 101, passes through the diaphragm 103 evenly from all directions and contacts the powder. Compared with non-uniform distribution, the powder can be uniformly fluidized across the entire cross-section of the upper cavity 101, avoiding the problem of excessive or insufficient fluidization in some areas. This improves the overall quality and effect of powder fluidization, making the powder more uniform and stable in the fluidized state, which is beneficial for subsequent conveying and processing. Furthermore, the microporous structure on the surface of the diaphragm 103 further optimizes the gas-solid mixing process.

[0026] In this embodiment, as Figure 1 and Figure 2 As shown, the top of the upper cavity 101 has an annular rim, and the surface of the rim has mounting holes arranged in an annular pattern. The upper cavity 101 is connected to the bottom of the storage and pressurization chamber 2 via a flange and flange bolt thread through the mounting holes on its top. The structure on the top of the upper cavity 101, which uses a flange and flange bolt thread connection, can provide a large connection force, ensuring that the connection between the fluidizer 1 and the storage and pressurization chamber 2 is stable and reliable. Whether bearing the weight of the powder material or coping with changes in internal gas pressure, this connection method can effectively prevent the two components from loosening or separating, ensuring the stability and reliability of the entire powder conveying process.

[0027] In this embodiment, as Figure 1 and Figure 2 As shown, the inner wall of the upper cavity 101 is inclined from the edge towards the end through which it connects with the lower cavity 102, and the axis of this connection is at the same horizontal position as the axis of the upper cavity 101 and the lower cavity 102. For materials in a non-fluidized state, this inclined design can prevent the material from stagnating at the edge of the upper cavity 101, ensuring that the material can smoothly reach the key area that needs to be fluidized, reducing the possibility of material residue and blockage. This is beneficial to the subsequent fluidization process, because more material can participate in the mixing with the gas more quickly, improving the efficiency of material processing. When the gas enters from the gas delivery port 104 and mixes with the material after passing through the diaphragm 103, the uniform axis position can make the powder-gas mixture generated during the fluidization process smoothly transition between the upper cavity 101 and the lower cavity 102, reducing the generation of powder turbulence, thereby reducing the shear force on the material and avoiding unnecessary damage to the material.

[0028] In this embodiment, as Figure 3 and Figure 4 As shown, the storage and pressurization chamber 2 and the top of the powder tank 3 are both equipped with pipes for conveying powder, and a pressure sensor is installed inside the powder tank 3. The powder conveying pipes on the storage and pressurization chamber 2 and the powder tank 3 provide a clear and convenient channel for the transfer of materials between different components, allowing the materials to enter the storage and pressurization chamber 2 from the front discharge point and then enter the powder tank 3 through the conveying system 4 according to the predetermined path. This ensures the orderliness and smoothness of the material conveying process. When the powder in one powder tank 3 is full, the pressure sensor can detect the pressure change in time and quickly switch the material conveying process to another powder tank 3 through the external control unit. This avoids the interruption of conveying caused by manual detection of the powder tank 3 being full, reduces manual intervention, improves the overall production efficiency of powder conveying, and ensures that the production process can be carried out continuously and stably.

[0029] In this embodiment, as Figure 3 and Figure 4As shown, the conveying system 4 consists of conveying pipes and a high-pressure pneumatic valve 5. The conveying pipes are divided into a gas conveying pipe and a powder conveying pipe. The gas conveying pipe is connected to an external compressor via a gas inlet 104, and the powder conveying pipe is connected to a powder conveying port on one side of the storage and pressurization chamber 2. The bottom of the storage and pressurization chamber 2 is connected to the upper cavity 101 of the fluidizer 1. Meanwhile, the fluidizer 1 is connected to the powder conveying port at the top of the powder tank 3 via its lower cavity 102 and the powder conveying pipe. Dividing the pipes in the conveying system 4 into gas conveying pipes and powder conveying pipes allows the gas and powder to flow in independent pipes for mixing. The clear functional zoning of the pipes makes the layout of the equipment clearer and more reasonable, facilitating installation and subsequent maintenance. The connection between the gas conveying pipe and the gas inlet 104 allows the gas from the external compressor to be stably introduced into the fluidizer 1, providing a reliable power source for the fluidization of powder materials.

[0030] The usage and advantages of this utility model: The working process of this powder fluidized conveyor is as follows:

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the conveying equipment is equipped with two sets of fluidizers 1 (upper and lower) and three powder tanks 3. With the cooperation of the external control unit, remote automatic operation can be achieved. The pipe on one side of the storage and pressurization silo 2 is connected to the front-end equipment, i.e., the powder outlet, through the powder conveying pipe of the conveying system 4. The gas conveying port 104 of the fluidizer 1 is connected to the external compressor through the gas conveying pipe. First, the material will be sent to the storage and pressurization silo 2 through the front-end equipment and the powder conveying pipe of the conveying system 4. As the core component, when the gas conveying port 104 of the fluidizer 1 is connected to the external compressor through the gas conveying pipe, compressed air enters the area where the diaphragm 103 and the gas conveying port 104 are located. When the gas quickly fills the diaphragm 103, it accumulates and reduces the gas content in the cavity. After compression, the gas in the upper cavity 101 passes through the diaphragm 103 with a microporous structure on its surface and mixes with the powder on the edge of the diaphragm, turning the solid powder into a fluid. When the pressure reaches the rated value, the powder-gas mixture is transported from the storage pressurization chamber 2 through the powder conveying pipe, sequentially from the upper cavity 101 and the lower cavity 102, and finally from the powder conveying pipe of the conveying system 4 to the inside of the powder tank 3. When the material in one of the first powder tanks 3 reaches the predetermined quantity, the system automatically closes the high-pressure pneumatic valve 5 corresponding to the top of the first powder tank 3, and at the same time opens the high-pressure pneumatic valve 5 on the top of the other second powder tank 3, and continues the conveying process. When the second powder tank 3 is full, the feed valve closes, and the feeding steps of the first powder tank 3 are followed. This cycle continues until the machine is shut down.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A powder fluidizing conveyor, comprising a fluidizer (1), characterized in that: The fluidizer (1) is provided with a material storage and pressurization chamber (2) at the top and a powder tank (3) is provided on one side of the fluidizer (1). The material storage and pressurization chamber (2) and the powder tank (3) are connected by a conveying system (4). The fluidizer (1) consists of an upper cavity (101) and a lower cavity (102). The inner wall of the upper cavity (101) is provided with a diaphragm (103), and a gas delivery port (104) is provided on one side of the outer wall of the upper cavity (101). The gas delivery port (104) is located in the interval between the fluidizer (1) and the upper cavity (101). The diaphragm (103) is distributed in an equiangular ring on the inner wall of the upper cavity (101), and the surface of the diaphragm (103) is provided with a microporous structure.

2. The powder fluidizing conveyor according to claim 1, characterized in that: The upper cavity (101), lower cavity (102), diaphragm (103) and gas delivery port (104) are integrated into one unit, and the upper cavity (101) and lower cavity (102) are connected in a continuous manner. The bottom of the gas delivery port (104) and the lower cavity (102) are connected to the pipeline in the delivery system (4) via flanges and flange bolts.

3. The powder fluidizing conveyor according to claim 1, characterized in that: The top of the upper cavity (101) is provided with an annular rim, and the surface of the rim is provided with mounting holes distributed in an annular pattern. The upper cavity (101) is connected to the bottom of the storage and pressurization chamber (2) via a flange and flange bolt thread through the mounting holes on its top.

4. The powder fluidizing conveyor according to claim 1, characterized in that: The inner wall of the upper cavity (101) is inclined from the edge toward the end of the opening that connects with the lower cavity (102), and the axis of the opening is at the same horizontal position as the axis of the upper cavity (101) and the lower cavity (102).

5. The powder fluidizing conveyor according to claim 1, characterized in that: The storage pressurization chamber (2) and the top of the powder tank (3) are both provided with pipe openings for conveying powder, and a pressure sensor is installed inside the powder tank (3).

6. The powder fluidizing conveyor according to claim 1, characterized in that: The conveying system (4) consists of a conveying pipe and a high-pressure pneumatic valve (5). The conveying pipe is divided into a gas conveying pipe and a powder conveying pipe. The gas conveying pipe is connected to an external compressor via a gas conveying port (104). The powder conveying pipe is connected to a port on one side of the storage pressurization chamber (2) for conveying powder. The bottom of the storage pressurization chamber (2) is connected to the upper cavity (101) of the fluidizer (1). At the same time, the fluidizer (1) is connected to the powder conveying port at the top of the powder tank (3) via the powder conveying pipe through its lower cavity (102).

Images