Powder silo fluidizing device

Abstract

The utility model discloses a powder silo fluidization device which comprises a low-pressure fluidization system and a high-pressure fluidization system, the low-pressure fluidization system comprises a conveying fan, an air outlet of the conveying fan is connected with an air heater, and the air heater is connected with an air distribution box through a main pipeline of the low-pressure fluidization device. The air distribution box is arranged on the low-pressure fluidization device annular main pipeline, low-pressure fluidization device annular main pipeline dust discharging valves are arranged at the two ends of the low-pressure fluidization device annular main pipeline, and the low-pressure fluidization device annular main pipeline is connected to low-pressure fluidization device partition branch pipelines through a plurality of low-pressure fluidization device partition main pipelines. When the powder is not hardened, the low-pressure fluidization system is started to increase the flowability of the powder so as to increase the discharging speed, and when the powder in the container is hardened, the high-pressure fluidization system is started to inflate the powder in the container at high pressure, so that the hardening phenomenon can be effectively solved, and the flowability of the powder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder silo fluidization, in particular to a powder silo fluidization device. Background Art

[0002] Powder materials are prone to wall sticking, blockage, and warehouse expansion due to differences in particle size distribution, water content, activity, and other characteristics, as well as differences in silo structure and feeding methods.

[0003] In the pneumatic conveying of powders, the powder silo is a common storage device, and its ideal state is that the powder can flow out from the bottom outlet evenly and stably. However, for powders with higher viscosity, abnormal conditions such as center flow and channel flow often occur, resulting in a significant decrease in the uniformity of powder outflow, and even bridging, which prevents the powder from flowing out at all.

[0004] Therefore, a new type of fluidizing device is urgently needed to solve the problems existing in the prior art, improve the uniformity of powder outflow, and avoid the blockage of the air outlet on the fluidizing plate. The new type of fluidizing device should be able to optimize the design according to the characteristics of the powder material and the structure of the silo, improve the fluidization effect, reduce the equipment cost, and improve the stability and reliability of the equipment operation. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a powder silo fluidizing device to solve the problem that powdery materials are easily compacted and dense when stored in the silo.

[0006] A powder silo fluidizing device comprises two parts: a low-pressure fluidizing system and a high-pressure fluidizing system. The low-pressure fluidizing system comprises a conveying fan. The air outlet of the conveying fan is connected to an air heater. The air heater is connected to an air distribution box through a low-pressure fluidizing device main pipeline. The air distribution box is arranged on an annular main pipeline of the low-pressure fluidizing device. Dust exhaust valves of the low-pressure fluidizing device annular main pipeline are arranged at both ends of the low-pressure fluidizing device annular main pipeline. The low-pressure fluidizing device annular main pipeline is connected to a low-pressure fluidizing device partition branch pipeline through a plurality of low-pressure fluidizing device partition main pipelines. Manual valves of low-pressure fluidizing device partition branch pipelines are arranged on the low-pressure fluidizing device partition branch pipelines. The low-pressure fluidizing device partition branch pipelines are connected to the low-pressure fluidizing device.

[0007] Furthermore, a manual valve for the partitioned main pipeline of the low-pressure fluidizing device and an electric valve for the partitioned main pipeline of the low-pressure fluidizing device are also arranged on the partitioned main pipeline of the low-pressure fluidizing device; a one-way valve for the partitioned main pipeline of the low-pressure fluidizing device is also arranged inside the partitioned main pipeline of the low-pressure fluidizing device; and a mechanical pressure gauge is also arranged at one end close to the partitioned branch pipeline of the low-pressure fluidizing device.

[0008] Furthermore, it also includes a high-pressure fluidization system, which is composed of a high-pressure fluidization compressed air storage tank. The high-pressure fluidization compressed air storage tank is connected to the main air supply pipeline of the high-pressure fluidization device. The main air supply pipeline of the high-pressure fluidization device is provided with a high-pressure fluidization compressed air pipeline one-way valve and a high-pressure fluidization device main air supply pipeline manual valve.

[0009] Furthermore, it also includes a main air supply pipeline of the high-pressure fluidizing device connected to a plurality of high-pressure fluidizing device air supply branches, the high-pressure fluidizing device air supply branch solenoid valves are arranged on the high-pressure fluidizing device air supply branch, and a high-pressure fluidizing device is arranged at the tail end of the high-pressure fluidizing device air supply branch.

[0010] Furthermore, the annular main pipeline of the low-pressure fluidizing device is a non-closed circular pipeline structure, and the branch pipelines of the low-pressure fluidizing device are spliced ​​circular pipeline structures with a radius smaller than the annular main pipeline of the low-pressure fluidizing device.

[0011] Furthermore, the low-pressure fluidization device has a plurality of branches, and the branches are laid out in a circular shape.

[0012] Furthermore, the high-pressure fluidizing device is a plurality of straight pipes connected to the gas supply branch pipe of the high-pressure fluidizing device.

[0013] The beneficial effects of the utility model are as follows: the utility model sets a low-pressure fluidization system and a high-pressure fluidization system. When the powder has not yet become compacted, the low-pressure fluidization system is started to increase the fluidity of the powder and thus increase the unloading rate. When the powder in the container has already become compacted, the high-pressure fluidization system is started to perform high-pressure inflation on the powder in the container, which can effectively solve the compaction phenomenon and increase the fluidity of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of a low-pressure fluidization system of a powder silo fluidization device;

[0015] Figure 2 The present invention is a schematic diagram of the structure of a high-pressure fluidization system of a powder silo fluidization device.

[0016] In the figure: 1-conveying fan, 2-air heater, 3-main pipeline of low-pressure fluidizing device, 4-air distribution box, 5-annular main pipeline of low-pressure fluidizing device, 6-dust exhaust valve of annular main pipeline of low-pressure fluidizing device, 7-partition main pipeline of low-pressure fluidizing device, 8-manual valve of partition main pipeline of low-pressure fluidizing device, 9-electric valve of partition main pipeline of low-pressure fluidizing device, 10-check valve of partition main pipeline of low-pressure fluidizing device, 11-mechanical pressure gauge, 12-partition branch pipeline of low-pressure fluidizing device, 13-manual valve of partition branch pipeline of low-pressure fluidizing device, 14-low-pressure fluidizing device, 15-compressed air storage tank for high-pressure fluidizing device, 16-check valve of compressed air pipeline for high-pressure fluidizing device, 17-manual valve of main air supply pipeline of high-pressure fluidizing device, 18-main air supply pipeline of high-pressure fluidizing device, 19-air supply branch pipe of high-pressure fluidizing device, 20-solenoid valve of air supply branch pipe of high-pressure fluidizing device, 21-high-pressure fluidizing device. DETAILED DESCRIPTION

[0017] The following is an explanation of the implementation of the present invention by specific specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to the implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, many specific details will be included in the following description. The present utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. It should be noted that in this specification, similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures.

[0018] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "set", "connected", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances. The directions or positional relationships indicated by “upper”, “lower”, “left”, “right”, “inner”, “bottom”, etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0019] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] In this embodiment, as shown in the attached Figure 1-2 As shown, a powder silo fluidizing device includes two parts: a low-pressure fluidizing system and a high-pressure fluidizing system. The low-pressure fluidizing system includes a conveying fan 1. The air outlet of the conveying fan 1 is connected to an air heater 2. The air heater 2 is connected to an air distribution box 4 through a low-pressure fluidizing device main pipeline 3. The air distribution box 4 is arranged on an annular main pipeline 5 of the low-pressure fluidizing device. Dust exhaust valves 6 of the low-pressure fluidizing device annular main pipeline are arranged at both ends of the low-pressure fluidizing device annular main pipeline 5. The low-pressure fluidizing device annular main pipeline 5 is connected to a low-pressure fluidizing device partition branch pipeline 12 through a plurality of low-pressure fluidizing device partition main pipelines 7. The low-pressure fluidizing device partition branch pipeline 12 is provided with a low-pressure fluidizing device partition branch pipeline manual valve 13. The low-pressure fluidizing device partition branch pipeline 12 is connected to a low-pressure fluidizing device 14.

[0021] Furthermore, a low-pressure fluidizing device partition main pipeline manual valve 8 and a low-pressure fluidizing device partition main pipeline electric valve 9 are also provided on the low-pressure fluidizing device partition main pipeline 7, a low-pressure fluidizing device partition main pipeline one-way valve 10 is also provided inside the low-pressure fluidizing device partition main pipeline 7, and a mechanical pressure gauge 11 is also provided at one end close to the low-pressure fluidizing device partition branch pipeline 12.

[0022] Furthermore, it also includes a high-pressure fluidization system, which is composed of a high-pressure fluidization compressed air storage tank 15. The high-pressure fluidization compressed air storage tank 15 is connected to the main air supply pipeline 18 of the high-pressure fluidization device. The main air supply pipeline 18 of the high-pressure fluidization device is provided with a high-pressure fluidization compressed air pipeline one-way valve 16 and a high-pressure fluidization device main air supply pipeline manual valve 17.

[0023] Furthermore, it also includes a high-pressure fluidizing device main gas supply pipeline 18 connected to a plurality of high-pressure fluidizing device gas supply branch pipes 19, the high-pressure fluidizing device gas supply branch pipe 19 is provided with a high-pressure fluidizing device gas supply branch pipe solenoid valve 20, and a high-pressure fluidizing device 21 is provided at the tail end of the high-pressure fluidizing device gas supply branch pipe 19.

[0024] Furthermore, the low-pressure fluidization device annular main pipeline 5 is a non-closed circular pipeline structure, and the low-pressure fluidization device partition branch pipelines 12 are spliced ​​circular pipeline structures with a radius smaller than the low-pressure fluidization device annular main pipeline 5.

[0025] Furthermore, the low-pressure fluidizing device 14 has a plurality of branches, and the branches are laid out in a circular shape.

[0026] Furthermore, the high-pressure fluidizing device 21 is a plurality of straight pipes connected to the gas supply branch pipe 19 of the high-pressure fluidizing device.

[0027] The specific workflow of this new application is as follows:

[0028] When the low-pressure fluidization system is in operation, first turn on the conveying fan 1 to provide an air source for the entire system. The low-pressure air generated by the conveying fan 1 is heated to a certain temperature through the air heater 2, and enters the air distribution box 4 through the low-pressure fluidization device main pipeline 3. The air distribution box 4 distributes the air to 5, the low-pressure fluidization device annular main pipeline 5, and is distributed to each low-pressure fluidization device partition main pipeline 7 through the low-pressure fluidization device annular main pipeline 5. The manual valve 8 of the low-pressure fluidization device partition main pipeline and the electric valve 9 of the low-pressure fluidization device partition main pipeline are opened, and enter the low-pressure fluidization device partition branch pipeline 12 through 10 and the low-pressure fluidization device partition main pipeline one-way valve 10. The manual valve 13 of the low-pressure fluidization device partition branch pipeline is opened to provide a low-pressure air source for the low-pressure fluidization device 14.

[0029] When the high-pressure fluidization device system is in operation, first ensure that the compressed air in the high-pressure fluidization device compressed air storage tank 15 is sufficient, then open the manual valve 17 of the main air supply pipeline of the high-pressure fluidization device, and the compressed air enters the high-pressure fluidization device air supply branch pipe 19 through the high-pressure fluidization device compressed air pipeline check valve 16 and the high-pressure fluidization device main air supply pipeline 18. Open the high-pressure fluidization device air supply branch pipe solenoid valve 20 to provide a high-pressure air source for the high-pressure fluidization device 21.

[0030] Beneficial effects of the utility model: the low-pressure fluidization system and the high-pressure fluidization system of the utility model, when the powder has not yet been compacted, the low-pressure fluidization system is started to increase the fluidity of the powder and thus increase the unloading rate; and when the powder in the container has already compacted, the high-pressure fluidization system is started to perform high-pressure inflation on the powder in the container, which can effectively solve the compaction phenomenon and increase the fluidity of the powder.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A powder silo fluidization device, characterized in that: The invention comprises a low-pressure fluidization system and a high-pressure fluidization system. The low-pressure fluidization system comprises a conveying fan (1). The air outlet of the conveying fan (1) is connected to an air heater (2). The air heater (2) is connected to an air distribution box (4) through a low-pressure fluidization device main pipeline (3). The air distribution box (4) is arranged on an annular main pipeline (5) of the low-pressure fluidization device. Dust exhaust valves (6) of the annular main pipeline of the low-pressure fluidization device are arranged at both ends of the annular main pipeline (5) of the low-pressure fluidization device. The annular main pipeline (5) of the low-pressure fluidization device is connected to a low-pressure fluidization device partition branch pipeline (12) through a plurality of low-pressure fluidization device partition main pipelines (7). A low-pressure fluidization device partition branch pipeline manual valve (13) is arranged on the low-pressure fluidization device partition branch pipeline (12). The low-pressure fluidization device partition branch pipeline (12) is connected to a low-pressure fluidization device (14).

2. A powder silo fluidization device according to claim 1, characterized in that: The invention also includes a low-pressure fluidizing device partition main pipeline manual valve (8) and a low-pressure fluidizing device partition main pipeline electric valve (9) provided on the low-pressure fluidizing device partition main pipeline (7), a low-pressure fluidizing device partition main pipeline check valve (10) provided inside the low-pressure fluidizing device partition main pipeline (7), and a mechanical pressure gauge (11) provided at one end close to the low-pressure fluidizing device partition branch pipeline (12).

3. A powder silo fluidization device according to claim 1, characterized in that: The high-pressure fluidization system is also included, the high-pressure fluidization system is composed of a high-pressure fluidization compressed air storage tank (15), the high-pressure fluidization compressed air storage tank (15) is connected to the main air supply pipeline (18) of the high-pressure fluidization device, and the main air supply pipeline (18) of the high-pressure fluidization device is provided with a high-pressure fluidization compressed air pipeline check valve (16) and a high-pressure fluidization device main air supply pipeline manual valve (17).

4. A powder silo fluidization device according to claim 1, characterized in that: It also includes a high-pressure fluidizing device main gas supply pipeline (18) connected to a plurality of high-pressure fluidizing device gas supply branch pipes (19), the high-pressure fluidizing device gas supply branch pipe (19) is provided with a high-pressure fluidizing device gas supply branch pipe solenoid valve (20), and a high-pressure fluidizing device (21) is provided at the tail end of the high-pressure fluidizing device gas supply branch pipe (19).

5. A powder silo fluidization device according to claim 1, characterized in that: The low-pressure fluidizing device annular main pipeline (5) is a non-closed annular pipeline structure, and the low-pressure fluidizing device partition branch pipeline (12) is a spliced ​​annular pipeline structure with a radius smaller than the low-pressure fluidizing device annular main pipeline (5).

6. A powder silo fluidization device according to claim 1, characterized in that: The low-pressure fluidizing device (14) has a plurality of branches, and the branches are laid out in a circular shape.

7. A powder silo fluidization device according to claim 3, characterized in that: The high-pressure fluidizing device (21) is a plurality of straight pipes connected to a high-pressure fluidizing device gas supply branch pipe (19).

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