Fluidization air valve group device for controlling material fluidity

Abstract

The utility model provides a fluidization air valve group device for controlling material flowability, which relates to the technical field of flue gas desulfurization treatment and comprises a finished product bin and a gas source, a feed opening of the finished product bin is connected with a material conveying pipeline, the gas source is communicated with the feed opening of the finished product bin through a gas conveying pipeline, and the feed opening of the finished product bin is communicated with the gas conveying pipeline. And the gas transmission pipeline is connected with a flow control valve group. According to the utility model, the gas source is communicated with the feed opening of the finished product bin through the gas transmission pipeline, so that airflow can carry out turbulent fluidization on baking soda accumulated with dust and caked at the bottom of the bin body of the finished product bin, the problems that baking soda is difficult to feed and a discharger is blocked are solved, and the removal of SO2 in flue gas is further ensured. And through the flow control valve group, the gas flow of the gas conveying pipeline can be controlled and adjusted, the mobility of the baking soda is adjusted, and the efficiency is improved. Compared with a mechanical vibration blanking mode, the pneumatic fluidization process is milder, the influence on equipment is smaller, and the pneumatic fluidization device is suitable for long-term use.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization treatment, in particular to a fluidization air valve group device for controlling the fluidity of materials. Background Art

[0002] Industrial flue gas emitted from ironmaking, steel rolling, sintering and other processes in steel plants contains a large amount of pollutants such as SO2. The SO2 treatment technology in steel plants mainly adopts baking soda dry desulfurization technology (SDS). Baking soda has problems such as agglomeration and hardening during storage in the finished product warehouse, which makes it difficult to unload materials and causes agglomeration blockage, affecting the subsequent transportation of baking soda to the SDS reactor injector, thereby affecting the removal of SO2 in the flue gas.

[0003] Among the existing patent technologies, the Chinese patent CN214242230U, which was authorized and announced on September 21, 2021, records a new baking soda feeding device, which reduces the blockage problem in the baking soda powder feeding process through a vibration component and an anti-blocking component, making feeding easier.

[0004] However, vibration is easily transmitted through machinery, resulting in this type of existing technology. Although it can solve the problem of blockage and facilitate material unloading, the area around the vibration source is prone to mechanical fatigue, and long-term damage affects the service life of the equipment. Utility Model Content

[0005] The utility model aims to provide a fluidizing air valve assembly device for controlling the fluidity of materials, which can turbulently fluidize the baking soda accumulated in the bottom of the finished product warehouse through airflow, thereby solving the problems of difficulty in discharging baking soda and blockage of the discharger.

[0006] The utility model provides a fluidizing air valve group device for controlling the fluidity of materials, comprising a finished product bin and an air source, wherein a material discharge port of the finished product bin is connected to a material delivery pipeline, the air source is connected to the material discharge port of the finished product bin through the air delivery pipeline, and a flow control valve group is connected to the air delivery pipeline.

[0007] Furthermore, the unloading port of the finished product bin is connected with a unloading short circuit, and the gas pipeline is connected to the unloading short circuit.

[0008] Furthermore, a gate valve is provided between the material discharge short circuit and the material discharge port of the finished product bin.

[0009] Furthermore, a star-shaped discharger is provided between the material discharge short circuit and the material conveying pipeline.

[0010] Furthermore, the gas delivery pipeline is a hose, and a quick connector is provided at the end of the hose, which is connected to the quick connector on the blanking short connector.

[0011] Furthermore, the finished product bin is filled with finished baking soda, and the feed pipeline is connected to the SDS reactor.

[0012] Furthermore, the flow control valve group includes a pressure reducing valve.

[0013] Furthermore, the flow control valve group also includes a ball valve.

[0014] Furthermore, the pressure reducing valve is located on the downstream side of the ball valve.

[0015] Furthermore, the gas source is a nitrogen gas source or air.

[0016] The technical solution of the utility model connects the gas source and the discharge port of the finished product warehouse through the gas pipeline, so that the airflow can turbulently fluidize the baking soda that accumulates dust and clumps at the bottom of the finished product warehouse, solving the problem of difficulty in discharging baking soda and blockage of the discharger, thereby ensuring the removal of SO2 in the flue gas. And through the flow control valve group, the air flow of the gas pipeline can be controlled and adjusted to adjust the fluidity of the baking soda and improve efficiency. Compared with the mechanical vibration discharge method, the pneumatic fluidization process is gentler, has less impact on the equipment, and is suitable for long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Description of reference numerals:

[0020] 1. Gas source; 101-gas pipeline; 2. Ball valve; 3. Pressure reducing valve; 4. Finished product warehouse; 5. Gate valve; 6. Short-circuit for unloading; 7. Star-shaped unloader; 8. Material pipeline. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Example 1

[0025] like Figure 1 As shown, the utility model provides a fluidizing air valve group device for controlling the fluidity of materials, including a finished product bin 4 and an air source 1, the unloading port of the finished product bin 4 is connected to a feed pipeline 8, the air source 1 is connected to the unloading port of the finished product bin 4 through a feed pipeline 101, and a flow control valve group is connected to the feed pipeline 101. The finished product bin 4 contains finished baking soda, and the feed pipeline 8 is connected to the SDS reactor. The air source 1 is a nitrogen gas source or air.

[0026] Specifically, in the present device, the bottom of the finished product bin 4 is funnel-shaped, which facilitates the flow of the finished baking soda inside. When the baking soda flows down to the discharge port and enters the feed pipeline 8, it is affected by the nitrogen gas flow from the gas pipeline 101, and the nitrogen gas flow turbulently fluidizes the baking soda accumulated in the dust at the bottom of the bin, thereby solving the problem of difficulty in discharging baking soda and blockage of the discharger, thereby ensuring the removal of SO2 in the flue gas.

[0027] The gas source 1 provides a nitrogen gas flow with a certain pressure, and the pressure and flow of the nitrogen gas flow can be adjusted by the flow control valve group on the gas pipeline 101, thereby adjusting the fluidity of the baking soda and improving the efficiency. Of course, in the case of a low cost budget, the gas source can also be directly air.

[0028] In addition, in this device, since the baking soda is fluidized by turbulent nitrogen gas flow, the cause of agglomeration can be improved by changing the temperature and humidity of the nitrogen gas flow, and then by changing the temperature and humidity of the unloading area of ​​the finished product warehouse 4, so that the baking soda at the bottom is less likely to agglomerate. The specific method can be to set a heating coil and a temperature sensor in a certain area on the conveying pipeline 8, and connect a temperature controller to the outside of the conveying pipeline 8 to change the temperature of the nitrogen gas flow in the conveying pipeline 8, and then by changing the temperature of the nitrogen gas flow, the humidity of the unloading area can also be changed when the nitrogen gas flow is transported to the unloading area. Thereby changing the temperature and humidity of the unloading area of ​​the finished product warehouse 4, improving the cause of agglomeration, and making the baking soda at the bottom less likely to agglomerate.

[0029] Example 2

[0030] The unloading port of the finished product bin 4 is connected with a unloading short circuit 6, and the gas pipeline 101 is connected to the unloading short circuit 6. A gate valve 5 is provided between the unloading short circuit 6 and the unloading port of the finished product bin 4. A star-shaped discharger 7 is provided between the unloading short circuit 6 and the feeding pipeline 8. The gas pipeline 101 is a hose, and a quick connector is provided at the end of the hose, which is connected to the quick connector on the unloading short circuit 6.

[0031] Specifically, the upper end of the material discharge short circuit 6 is connected to the finished product bin 4 through the gate valve 5, the lower end is connected to the material delivery pipeline 8 through the star-shaped discharger 7, and the middle part is connected to the gas delivery pipeline 101 through a quick-connect copper plug. The gate valve 5 can control the material falling speed at the discharge port and even cut off the discharge. The star-shaped discharger 7 can be used to feed the material delivery pipeline 8 evenly and continuously. By setting the gas delivery pipeline 101 as a hose, it is possible to disassemble or connect the gas source 1, modify the device, and quickly connect it through the quick connector. The quick connector, gate valve 5 and star-shaped discharger 7 are all prior art contents, which can be purchased online or offline, and their structures will not be described in detail.

[0032] Example 3

[0033] The flow control valve group includes a pressure reducing valve 3. The flow control valve group also includes a ball valve 2. The pressure reducing valve 3 is located at the downstream side of the ball valve 2.

[0034] Specifically, the nitrogen from the gas source 1 is controlled by the ball valve 2 to enter the gas pipeline 101 hose, and then the pressure reducing valve 3 on the gas pipeline 101 hose is used to control and adjust the nitrogen flow through the gas pipeline 101 hose.

[0035] Working mode and principle of this device:

[0036] The utility model controls the nitrogen taken from the gas source 1 to enter the gas pipeline 101 hose through the ball valve 2, and the pressure reducing valve 3 on the gas pipeline 101 hose is used to control and adjust the nitrogen flow through the gas pipeline 101 hose. The other end of the gas pipeline 101 hose is installed with a gas source 1 quick copper plug, and the plug is inserted into the connection section between the star-shaped discharger 7 and the finished product warehouse 4 (the discharge short circuit 6). The nitrogen enters the discharge short circuit 6, and the nitrogen gas flow turbulently fluidizes the baking soda agglomerated with dust at the bottom of the warehouse body, so as to solve the problems of difficulty in discharging baking soda and blockage of the discharger, thereby ensuring the removal of SO2 in the flue gas.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A fluidizing air valve assembly device for controlling material fluidity, characterized in that: It includes a finished product warehouse and an air source, wherein the unloading port of the finished product warehouse is connected to a material delivery pipeline, the air source is connected to the unloading port of the finished product warehouse through the air delivery pipeline, and the air delivery pipeline is connected to a flow control valve group.

2. The fluidizing air valve assembly device for controlling material fluidity according to claim 1, characterized in that: The unloading port of the finished product bin is connected with a unloading short circuit, and the gas pipeline is connected to the unloading short circuit.

3. The fluidizing air valve assembly device for controlling material fluidity according to claim 2, characterized in that: A plug valve is provided between the material discharge short circuit and the material discharge port of the finished product bin.

4. The fluidizing air valve assembly device for controlling material fluidity according to claim 2, characterized in that: A star-shaped discharger is arranged between the material discharge short connection and the material conveying pipeline.

5. The fluidizing air valve assembly device for controlling material fluidity according to claim 2, characterized in that: The gas delivery pipeline is a hose, and a quick connector is provided at the end of the hose, which is connected to the quick connector on the blanking short-circuit.

6. The fluidizing air valve assembly device for controlling material fluidity according to claim 1, characterized in that: The finished product bin is filled with finished baking soda, and the feed pipeline is connected to the SDS reactor.

7. The fluidizing air valve assembly device for controlling material fluidity according to claim 1, characterized in that: The flow control valve group includes a pressure reducing valve.

8. The fluidizing air valve assembly device for controlling material fluidity according to claim 7, characterized in that: The flow control valve group also includes a ball valve.

9. The fluidizing air valve assembly device for controlling material fluidity according to claim 8, characterized in that: The pressure reducing valve is located on the downstream side of the ball valve.

10. The fluidizing air valve assembly device for controlling material fluidity according to claim 1, characterized in that: The gas source is a nitrogen gas source or air.

Images