Gas-solid separation powder collecting device for biological powder spheroidization

Abstract

The utility model relates to the field of gas-solid separation devices, and particularly discloses a gas-solid separation powder collecting device for biological powder spheroidization, which comprises a shell, a gas inlet, a gas outlet and a gas outlet, the inner shell is fixedly connected to the interior of the outer shell through a connecting rod, two groups of opposite airflow hole arrays are formed in the side wall of the inner shell, a gas cavity is formed between the inner shell and the outer shell, a feeding port is formed in the connecting position of the top ends of the inner shell and the outer shell, and a discharging port is formed in the bottom of the inner shell; and the spiral frame is fixedly arranged in the inner shell. Compared with the prior art, the utility model has the following beneficial effects: cold airflow enters from the air inlet and then enters the inner shell through the airflow hole arrays on the two sides, and two strands of airflow are interacted to form spiral downward airflow, so that powder particles rotate and float downwards under the action of the spiral downward airflow and finally flow out of the discharge port, thereby reducing wall sticking and agglomeration of powder raw materials and improving the production efficiency. The utilization rate of powder raw materials can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the field of gas-solid separation devices, and more specifically, the utility model relates to a gas-solid separation powder collecting device used for spheroidization of biological powders. Background Art

[0002] Fluidized bed reactor is a common equipment in industrial production and material handling. In the fluidized bed reaction process, the raw material droplets usually enter the processing chamber through a nozzle or a feed port, and condense into particles under the combined action of wind and gravity. In the reaction device, it is often necessary to provide airflow into the chamber to separate the condensed finished particles in order to control the quality and yield of the particles.

[0003] In order to reduce the occurrence of particle wall adhesion and agglomeration during the separation and collection of particles in a fluidized bed reactor, a gas-solid separation device is usually used to separate particles from the gas flow and flow in the bed. However, existing gas-solid separation devices often have the problem of uneven effect of gas flow on particles, thereby affecting the raw material utilization and reaction efficiency of the reaction or separation process. For example, a pressure differential cyclone separator disclosed in CN104138810B has the problem of uneven effect of gas flow on particles due to the provision of a main cyclone body and a secondary cyclone body to form a pressure difference. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages to be described below.

[0005] In order to achieve these purposes and other advantages according to the utility model, a gas-solid separation powder collection device for biological powder spheroidization is provided, comprising:

[0006] The housing has a side wall provided with an air inlet;

[0007] The inner shell is fixedly connected to the inner part of the outer shell by a connecting rod, the side wall of the inner shell is provided with two opposite groups of gas flow hole arrays, a gas cavity is provided between the inner shell and the outer shell, the top and bottom of the gas cavity are closed, the connection between the inner shell and the top of the outer shell forms a feed inlet, and the bottom of the inner shell is provided with a discharge port;

[0008] The spiral frame is fixedly arranged inside the inner shell.

[0009] Preferably, the spiral frame comprises a conical portion and a vertical portion, the vertical portion is provided with spiral blades at equal intervals, and the vertical portion is further provided with two cross bars, and the ends of the cross bars are fixedly connected to the inner shell.

[0010] Preferably, the air flow hole array is located below the air inlet, and each group of the air flow hole array includes multiple air flow holes. The axial direction of the air flow holes is consistent with the spiral direction of the spiral blade, the axis of one of the two cross bars is the X-axis, and the axis of the other cross bar is the Y-axis. The angle between the axis of the air flow hole and the X-axis of the device is 45°, and the aperture of the air flow hole is 15 mm.

[0011] Preferably, the inclination angle of the tapered portion is 45°, the thickness of the spiral blade is 3 mm, the width is 110 mm, and the vertical spacing between the upper and lower layers of the spiral blade is 100 mm.

[0012] Preferably, the inner hole radius of the air inlet is smaller than the inner hole radius of the feed inlet, and the inner hole radius of the feed inlet is smaller than the inner hole radius of the discharge port.

[0013] Preferably, the width of the gas cavity is 100 mm.

[0014] The utility model includes at least the following beneficial effects: the cold air flow of the utility model enters from the air inlet, and then enters the inner shell through two groups of air flow hole arrays on the side wall of the inner shell. The two air flows interact to form a spiral downward air flow, causing the powder particles to rotate and float downward under its action, and finally flow out of the discharge port, so that the gas flow has a more uniform effect on the granular powder, thereby reducing the adhesion and agglomeration of the powder raw materials to the wall, and can effectively improve the utilization rate of the powder raw materials.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the external structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the spiral frame of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal enlarged structure of the utility model.

[0020] Reference numerals in the figure: 1 air inlet, 2 feed port, 3 discharge port, 4 outer shell, 41 connecting rod, 5 air flow hole array, 51 air flow hole, 6 spiral blade, 7 spiral frame, 71 conical portion, 72 vertical portion, 8 gas cavity, 9 inner shell. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0022] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0023] It should be noted that in the description of the present invention, the orientation or position relationship indicated by the term is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0025] In addition, in the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] like Figure 1 to Figure 4 As shown, a gas-solid separation powder collection device for biological powder spheroidization comprises:

[0027] The housing 4 has an air inlet 1 disposed on its side wall;

[0028] The inner shell 9 is fixedly connected to the inner part of the outer shell 4 by a connecting rod 41. The side wall of the inner shell 9 is provided with two opposite groups of gas flow hole arrays 5. A gas cavity 8 is provided between the inner shell 9 and the outer shell 4. The top and bottom of the gas cavity 8 are closed. The connection between the inner shell 9 and the top of the outer shell 4 forms a feed port 2. The bottom of the inner shell 9 is provided with a discharge port 3.

[0029] The spiral frame 7 is fixedly arranged inside the inner shell 9 .

[0030] Working principle: Raw material droplets enter the inner shell 9 from the feed port 2, fall under the combined action of wind force and its own gravity, and condense into spherical particles during the falling process. When the gas flows into the air inlet 1, it will fill the gas cavity 8 between the outer shell 4 and the inner shell 9, and enter the inner shell 9 in two parallel and opposite directions from the air flow hole array 5 set on both sides of the inner shell 9, providing a flat layer cyclone for the inner shell 9, and flow to the bottom of the inner shell along the spiral frame 7, forming a spiral cyclone in the inner shell 9. Under the action of the spiral cyclone, the gas flow has a more uniform effect on the particle powder, which greatly reduces the phenomenon of spherical particles sticking to the wall. The spiral cyclone causes the spherical particles to spirally float downward in the inner shell 9, and finally causes the spherical particles to flow out from the discharge port 3.

[0031] In the above technical solution, the spiral frame 7 includes a tapered portion 71 and a vertical portion 72, the vertical portion 72 is provided with spiral blades 6 at equal intervals, and the vertical portion 72 is also provided with two cross bars 73, and the ends of the cross bars 73 are fixedly connected to the inner shell 9. The tapered portion 71 can prevent the powder from accumulating on the spiral frame 7, the cross bars 73 are used to fix the spiral frame 7 inside the inner shell 9, and the spiral blades 6 help the airflow entering from the airflow hole array 5 to form a spiral cyclone, and can also prevent the powder from accumulating.

[0032] In the above technical solution, the airflow hole array 5 is located below the air inlet 1, and each group of the airflow hole array 5 includes a plurality of airflow holes 51. The axial direction of the airflow hole 51 is consistent with the spiral direction of the spiral blade 6. The axis of one of the two crossbars 73 is the X-axis, and the axis of the other crossbar is the Y-axis. The angle between the axis of the airflow hole 51 and the X-axis of the device is 45°, and the aperture of the airflow hole 51 is 15 mm. The axial direction of the airflow hole 51 is consistent with the spiral direction of the spiral blade 6, and the angle of 45° with the X-axis of the device helps the airflow to form a flat layer cyclone in the inner shell 9. The flat layer cyclone then forms a downward spiral airflow through the spiral frame 7, so that the powder particles rotate and float downward under its action, and finally flow out of the discharge port 3, so that the gas flow has a more uniform effect on the particle powder.

[0033] In the above technical solution, the inclination angle of the conical portion 71 is 45°, the thickness of the spiral blade 6 is 3 mm, the width is 110 mm, and the vertical spacing between the upper and lower layers of the spiral blade 6 is 100 mm. The inclination angle of the conical portion 71 can prevent the powder from piling up, and the size and spacing of the spiral blade 6 help to make the cyclone in the inner shell 9 more stable.

[0034] In the above technical solution, the inner hole radius of the air inlet 1 is smaller than the inner hole radius of the feed port 2, and the inner hole radius of the feed port 2 is smaller than the inner hole radius of the discharge port 3. The inner hole radius of the air inlet 1 is smaller than the inner hole radius of the feed port 2, which helps the gas to generate a higher air flow velocity when entering the system, enhances the kinetic energy of the gas, makes the material enter the system more uniformly and stably, and reduces the blockage and mutual sticking of raw materials.

[0035] In the above technical solution, the width of the gas cavity 8 is 100 mm.

[0036] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A gas-solid separation powder collection device for biological powder spheroidization, characterized in that: include: The housing has a side wall provided with an air inlet; The inner shell is fixedly connected to the inner part of the outer shell by a connecting rod, the side wall of the inner shell is provided with two opposite groups of gas flow hole arrays, a gas cavity is provided between the inner shell and the outer shell, the top and bottom of the gas cavity are closed, the connection between the inner shell and the top of the outer shell forms a feed inlet, and the bottom of the inner shell is provided with a discharge port; The spiral frame is fixedly arranged inside the inner shell.

2. The gas-solid separation powder collection device for biological powder spheroidization according to claim 1, characterized in that: The spiral frame comprises a conical portion and a vertical portion, the vertical portion is provided with spiral blades with equal spacing, and the vertical portion is also provided with two cross bars, and the ends of the cross bars are fixedly connected to the inner shell.

3. The gas-solid separation powder collection device for biological powder spheroidization according to claim 2, characterized in that: The air flow hole array is located below the air inlet, and each group of the air flow hole array includes multiple air flow holes. The axial direction of the air flow hole is consistent with the spiral direction of the spiral blade. The axis of one of the two cross bars is the X-axis, and the axis of the other cross bar is the Y-axis. The angle between the axis of the air flow hole and the X-axis is 45°, and the aperture of the air flow hole is 15 mm.

4. The gas-solid separation powder collection device for biological powder spheroidization according to claim 2, characterized in that: The inclination angle of the conical portion is 45°, the thickness of the spiral blade is 3 mm, the width is 110 mm, and the vertical spacing between the upper and lower layers of the spiral blade is 100 mm.

5. The gas-solid separation powder collection device for biological powder spheroidization according to claim 1, characterized in that: The inner hole radius of the air inlet is smaller than the inner hole radius of the feed inlet, and the inner hole radius of the feed inlet is smaller than the inner hole radius of the discharge port.

6. The gas-solid separation powder collection device for biological powder spheroidization according to claim 1, characterized in that: The width of the gas cavity is 100 mm.

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