A flour positive pressure air separation device

Abstract

The utility model relates to flour screening technical field, concretely is a kind of flour positive pressure powder gas separation device, including powder storage tank, filter bin and fixing frame, the filter pipe is arranged on the upper end outer wall of powder storage tank, the filter pipe one end is provided with filter bin, the filter bin one side outer wall is welded with connecting pipe, the filter bin inside is provided with filter screen, the connecting pipe inner wall one side screw connection has fixing frame, the fixing frame inside is provided with pivot, the pivot outer wall one side hinge joint has wind wheel, the pivot one end outer wall is provided with connecting arm, cooperation shunt plate can realize the disturbance and mixing of air flow, ensure the mixing uniformity of flour in air flow, can guarantee the filtering uniformity of filter screen to flour, avoid the local gathering of flour on filter screen surface, ensure the filtering efficiency of filter screen to flour.

Description

Technical Field

[0001] This utility model relates to the field of flour screening technology, specifically to a flour positive pressure air separation device. Background Technology

[0002] Positive pressure flour-gas separation is a crucial step in flour processing. It aims to separate the gas mixed with flour during positive pressure conveying to obtain pure flour and ensure proper gas discharge. In the positive pressure conveying system, a blower pressurizes the flour-gas mixture along the feeding pipe to the separation device. When the mixture enters a larger space or a specific settling area, the flour particles gradually sink under gravity, while the gas continues to flow upwards or horizontally, achieving initial separation. Afterwards, through filtration, the gas can pass through the pores of the filter cloth, while the flour particles are trapped on one side of the filter cloth, thus achieving flour-gas separation.

[0003] CN217887378U discloses a positive pressure flour-air separation device, relating to the field of separation device technology, including a flour storage tank and a filter assembly. The flour storage tank has a connecting frame fixed inside a collection hole on the upper left side, a return pipe fixed inside a return hole on the upper right side, a separation bucket fixed to the upper end of the return pipe, and the return pipe communicating with the inner cavity of the separation bucket. A guide pipe is fixed inside an air inlet on the left end of the separation bucket. An air blowing assembly is installed on the upper side of the connecting frame. The filter assembly includes a motor, a rotating shaft, an arc-shaped plate, brush bristles, a fixing ring, and an arc-shaped filter screen. A motor is installed on the right end of the separation bucket, a rotating shaft is fixed to the motor's output shaft, and an arc-shaped plate is fixed to the left end of the rotating shaft. This design effectively reduces the floor space of the flour storage tank and performs multiple separations of flour and air, preventing the filter bag from becoming clogged.

[0004] While existing technology CN217887378U has many advantages in use, it still has the following problems: its flour diversion is not perfect, it cannot adjust the flow trajectory of the flour, which leads to the phenomenon of flour accumulation in the flow trajectory. It will accumulate in local positions on the surface of the filter screen, resulting in low filtration efficiency of the filter screen for flour. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a flour positive pressure air separation device.

[0006] The technical solution adopted by this utility model to solve its technical problem is a flour positive pressure powder-air separation device, including a powder storage tank, a filter chamber and a fixing frame. A filter pipe is provided on the upper outer wall of the powder storage tank, a filter chamber is provided at one end of the filter pipe, a connecting pipe is welded to the outer wall of one side of the filter chamber, a filter screen is provided inside the filter chamber, a fixing frame is screwed to one side of the inner wall of the connecting pipe, a rotating shaft is provided inside the fixing frame, a fan is pinned to one side of the outer wall of the rotating shaft, and a connecting arm is provided on the outer wall of one end of the rotating shaft.

[0007] By adopting the above technical solution, a blower is connected to the end of the filter tube away from the filter chamber. The airflow driven by the blower can drive the flour that has been filtered inside to flow until the flour follows the airflow into the filter chamber. The flour is then filtered a second time by the filter screen. The airflow inside the connecting pipe can drive the impeller and the shaft to rotate, which, together with the flow divider, can turbulence and mix the airflow, ensuring the uniformity of flour mixing in the airflow. This ensures the uniformity of flour filtration by the filter screen and avoids localized flour accumulation on the filter screen surface, thus ensuring the filtration efficiency of the filter screen. In addition, the rotating connecting arm and brush on the outside of the filter screen can automatically clean the outside of the filter screen, scraping off the flour adhering to the outside of the filter screen without the need for additional power, reducing the operating cost of the device.

[0008] Specifically, a first powder inlet pipe is provided on one side of the upper outer wall of the powder storage tank, and the first powder inlet pipe is connected to the lower outer wall of the filter pipe by a flange. A feed hopper is welded to the upper outer wall of the filter pipe.

[0009] By adopting the above technical solution, flour can enter the filter tube through the feed hopper, and the flour is driven to flow by the airflow inside the filter tube. Due to the weight of the flour, some of the flour will enter the storage tank through the first feed pipe for storage, thus achieving the purpose of filtering the flour once.

[0010] Specifically, a second powder inlet pipe is screwed to one side of the lower outer wall of the filter chamber, and the other end of the second powder inlet pipe is screwed to the powder storage tank. The powder storage tank is connected to the filter pipe by a flange through a connecting pipe.

[0011] By adopting the above technical solution, the airflow carrying flour inside the filter chamber can flow into the filter chamber through the connecting pipe. The flour inside the filter chamber, after being filtered by the filter screen, can be scraped off and returned to the flour storage tank through the second flour inlet pipe, thus achieving the purpose of flour recycling.

[0012] Specifically, a support frame is bonded and fixed to the inner wall of the filter screen, and the support frame is screwed to the inner wall of the filter chamber. An exhaust pipe is welded to one side of the inner wall of the filter chamber, and the exhaust pipe is located in the inner cavity of the filter screen.

[0013] By adopting the above technical solution, the support frame maintains the position of the filter screen inside the filter chamber. The filter screen can filter the rice flour flowing inside the filter chamber, and the support frame can support the shape of the filter screen, ensuring the filtration area of ​​the filter screen on the flour, ensuring filtration stability, ensuring that the exhaust powder content meets the standard, and the gas filtered by the filter screen can be discharged to the subsequent equipment through the exhaust pipe.

[0014] Specifically, the inner wall of the fixed frame is interference-fitted with a bearing, and the rotating shaft is interference-fitted with the inner ring of the bearing.

[0015] By adopting the above technical solution, the bearing maintains the rotational position of the shaft, ensuring that the rotational position of the shaft inside the fixed frame is stable and smooth.

[0016] Specifically, the impeller is located inside the connecting pipe and does not contact the inner wall of the connecting pipe. A diverter plate is integrally formed on one side of the outer wall of the impeller, and the outer wall of the diverter plate adopts a conical shape design.

[0017] By adopting the above technical solution, the impeller can be driven to rotate according to the airflow velocity inside the connecting pipe, and can disturb the flour in the airflow to ensure the uniform distribution of flour in the airflow. The conical design of the diverter plate can guide the airflow to impact the impeller blades evenly, enhancing the driving force and stability of the impeller rotation. The diverter plate can divide the airflow into multiple streams, increasing the force-bearing area of ​​the impeller. Even when the airflow speed fluctuates, the impeller speed can be maintained. By guiding the airflow direction, the uniform distribution of airflow on the outside of the filter screen is ensured, thereby ensuring the uniformity of the filter screen for filtering flour and guaranteeing the filtration efficiency of the filter screen for rice noodles.

[0018] Specifically, the connecting arm and the rotating shaft are connected by a pin. The connecting arm is located outside the filter screen, and a brush is glued and fixed to the inner wall of the connecting arm. The brush is in contact with the outer wall of the filter screen.

[0019] By adopting the above technical solution, the pin connection ensures a stable connection between the connecting arm and the rotating shaft, so that the connecting arm can rotate with the impeller, while the rotating shaft of the brush on the outside of the filter screen can brush away the flour particles attached to the filter screen.

[0020] The beneficial effects of this utility model are:

[0021] The positive pressure flour-air separation device of this utility model, in conjunction with a flow divider, can agitate and mix the airflow, ensuring the uniformity of flour mixing in the airflow, guaranteeing the uniformity of flour filtration by the filter screen, avoiding localized flour accumulation on the filter screen surface, and ensuring the filtration efficiency of the filter screen.

[0022] The present invention discloses a flour positive pressure powder-air separation device, in which a brush automatically cleans the outside of the filter screen, scraping off the flour adhering to the outside of the filter screen without the need for additional power, thus reducing the operating cost of the device. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the main structure of the powder storage tank of this utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of the filter chamber structure of this utility model;

[0026] Figure 3 This is a partially enlarged schematic diagram of the filter chamber structure of this utility model;

[0027] Figure 4 This is an exploded view of the filter structure of this utility model;

[0028] Figure 5 This is an exploded view of the rotating shaft structure of this utility model;

[0029] Figure 6 For the present utility model Figure 4 Enlarged schematic diagram of structure A in the middle.

[0030] In the diagram: 1. Powder storage tank; 11. First powder inlet pipe; 12. Filter pipe; 13. Feed hopper; 2. Filter chamber; 21. Connecting pipe; 22. Second powder inlet pipe; 23. Exhaust pipe; 24. Filter screen; 25. Support frame; 3. Fixing frame; 31. Bearing; 32. Rotating shaft; 33. Fan wheel; 34. Diverter plate; 35. Connecting arm; 36. Brush. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the flour positive pressure powder-air separation device of this utility model includes a powder storage tank 1, a filter chamber 2, and a fixing frame 3. A filter pipe 12 is provided on the upper outer wall of the powder storage tank 1. A filter chamber 2 is provided at one end of the filter pipe 12. A connecting pipe 21 is welded to one side of the outer wall of the filter chamber 2. A filter screen 24 is provided inside the filter chamber 2. A fixing frame 3 is screwed to one side of the inner wall of the connecting pipe 21. A rotating shaft 32 is provided inside the fixing frame 3. A fan wheel 33 is pinned to one side of the outer wall of the rotating shaft 32. A connecting arm 35 is provided on the outer wall of one end of the rotating shaft 32.

[0033] In use, a blower is connected to the end of the filter tube 12 away from the filter chamber 2. The airflow driven by the blower drives the flour inside the filter to flow until the flour follows the airflow into the filter chamber 2. The flour is then filtered a second time by the filter screen 24. The airflow inside the connecting tube 21 drives the impeller 33 and the rotating shaft 32 to rotate. This, together with the diverter plate 34, can turbulently mix the airflow, ensuring the uniformity of flour mixing in the airflow. This ensures the uniformity of flour filtration by the filter screen 24, preventing localized flour accumulation on the surface of the filter screen 24 and ensuring the filtration efficiency of the filter screen 24. In addition, the connecting arm 35 and the brush 36 rotate on the outside of the filter screen 24, allowing the brush 36 to automatically clean the outside of the filter screen 24, scraping off the flour adhering to the outside of the filter screen 24. No additional power is required, reducing the operating cost of the device.

[0034] For example, for feeding, such as Figure 2 As shown, a first powder inlet pipe 11 is provided on one side of the upper outer wall of the powder storage tank 1. The first powder inlet pipe 11 is connected to the lower outer wall of the filter pipe 12 by a flange. A feed hopper 13 is welded to the upper outer wall of the filter pipe 12.

[0035] In use, flour can enter the filter tube 12 through the feed hopper 13 and be driven to flow by the airflow inside the filter tube 12. Due to the weight of the flour, some of the flour will enter the storage tank 1 through the first feed pipe 11 for storage, thus achieving the purpose of filtering the flour once.

[0036] To collect flour, for example, such as Figure 2 As shown, a second powder inlet pipe 22 is screwed to one side of the lower outer wall of the filter chamber 2. The other end of the second powder inlet pipe 22 is screwed to the powder storage tank 1. The powder storage tank 1 is connected to the filter pipe 12 by a flange through the connecting pipe 21.

[0037] In use, the airflow carrying flour inside the filter chamber 2 can flow into the filter chamber 2 through the connecting pipe 21. The flour inside the filter chamber 2, after being filtered by the filter screen 24, can be scraped off and returned to the flour storage tank 1 through the second flour inlet pipe 22, thus achieving the purpose of flour recycling.

[0038] For flour filtration, exemplarily, such as Figure 3 As shown, a support frame 25 is bonded and fixed to the inner wall of the filter screen 24, and the support frame 25 is screwed to the inner wall of the filter chamber 2. An exhaust pipe 23 is welded to one side of the inner wall of the filter chamber 2, and the exhaust pipe 23 is located in the inner cavity of the filter screen 24.

[0039] During use, the support frame 25 holds the filter screen 24 in its position inside the filter chamber 2. The filter screen 24 can filter the rice flour flowing inside the filter chamber 2, and the support frame 25 can support the shape of the filter screen 24 to ensure the filtration area of ​​the filter screen 24, ensure filtration stability, and ensure that the exhaust powder content meets the standard. The gas filtered by the filter screen 24 can be discharged to the subsequent equipment through the exhaust pipe 23.

[0040] To maintain the rotational position, for example, such as Figure 5 As shown, a bearing 31 is interference-fitted onto the inner wall of the fixed bracket 3, and a rotating shaft 32 is interference-fitted onto the inner ring of the bearing 31.

[0041] During use, the bearing 31 maintains the rotational position of the shaft 32, ensuring that the rotational position of the shaft 32 inside the fixed frame 3 is stable and smooth.

[0042] To regulate the flow direction, for example, such as Figure 5 As shown, the impeller 33 is located inside the connecting pipe 21 and does not contact the inner wall of the connecting pipe 21. A diverter plate 34 is integrally formed on one side of the outer wall of the impeller 33, and the outer wall of the diverter plate 34 adopts a conical shape design.

[0043] During use, the impeller 33 is driven to rotate according to the airflow velocity inside the connecting pipe 21, and can disturb the flour in the airflow to ensure the uniform distribution of the flour in the airflow. The conical design of the diverter plate 34 can guide the airflow to impact the blades of the impeller 33 evenly, enhancing the driving force and stability of the impeller 33's rotation. The diverter plate 34 can divide the airflow into multiple streams, increasing the force-bearing area of ​​the impeller 33. Even when the airflow speed fluctuates, the speed of the impeller 33 can be maintained. By guiding the direction of the airflow, the uniform distribution of the airflow on the outside of the filter screen 24 is ensured, thereby ensuring the uniformity of the filter screen 24 in filtering the flour and ensuring the filtration efficiency of the filter screen 24 in filtering rice noodles.

[0044] To clean filter 24, for example, such as Figure 4 As shown, the connecting arm 35 and the rotating shaft 32 are connected by a pin. The connecting arm 35 is located outside the filter screen 24. A brush 36 is glued and fixed to the inner wall of the connecting arm 35, and the brush 36 is in contact with the outer wall of the filter screen 24.

[0045] During use, the pin connection ensures a stable connection between the connecting arm 35 and the rotating shaft 32, so that the connecting arm 35 can rotate with the impeller 33, while the brush 36 on the outside of the filter screen 24 can brush away the flour particles attached to the filter screen 24.

[0046] In use, flour enters the filter tube 12 from the feed hopper 13, and the airflow driven by the blower inside the filter tube 12 causes the flour to flow. Due to the weight of the flour, some of it falls into the storage tank 1 through the first feed pipe 11, thus achieving primary filtration.

[0047] The airflow carrying flour enters the filter chamber 2 through the filter pipe 12 and the connecting pipe 21. The filter screen 24 performs secondary filtration on the flour in the airflow to intercept flour particles. The filtered flour flows back to the powder storage tank 1 through the second powder inlet pipe 22 under the action of gravity or under the cleaning state of the brush 36.

[0048] After being filtered by the filter chamber 2, the airflow enters the connecting pipe 21. The airflow drives the impeller 33 and the shaft 32 to rotate. The splitter plate 34 divides the airflow into multiple streams, which evenly impact the blades of the impeller 33 and at the same time disturb the flour in the airflow to ensure that it is evenly mixed in the airflow.

[0049] The impeller 33 drives the rotating shaft 32 to rotate, and the connecting arm 35 connected by the pin rotates accordingly. The brush 36 on the connecting arm 35 rotates on the outside of the filter screen 24, continuously brushing away the flour particles attached to the surface of the filter screen 24. The gas filtered by the filter screen 24 is discharged through the exhaust pipe 23.

[0050] It should be noted that this utility model is a flour positive pressure powder-air separation device. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0051] 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 descriptions of the above embodiments and specifications are merely illustrative of the principles of this 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flour positive pressure gas separation device, characterized in that, The device includes a powder storage tank (1), a filter chamber (2), and a fixing frame (3). The powder storage tank (1) is provided with a filter pipe (12) on the upper outer wall. The filter chamber (2) is provided at one end of the filter pipe (12). A connecting pipe (21) is welded to one side of the outer wall of the filter chamber (2). A filter screen (24) is provided inside the filter chamber (2). The fixing frame (3) is screwed to one side of the inner wall of the connecting pipe (21). A rotating shaft (32) is provided inside the fixing frame (3). A fan wheel (33) is pinned to one side of the outer wall of the rotating shaft (32). A connecting arm (35) is provided on one end of the outer wall of the rotating shaft (32).

2. The flour positive pressure gas separation device according to claim 1, characterized in that, The powder storage tank (1) has a first powder inlet pipe (11) on one side of the upper outer wall. The first powder inlet pipe (11) is connected to the lower outer wall of the filter pipe (12) by a flange. The filter pipe (12) has a feed hopper (13) welded to the upper outer wall.

3. The flour positive pressure gas separation device according to claim 1, characterized in that, The filter chamber (2) is screwed to one side of the lower outer wall and a second powder inlet pipe (22). The other end of the second powder inlet pipe (22) is screwed to the powder storage tank (1). The powder storage tank (1) is connected to the filter pipe (12) by a flange through a connecting pipe (21).

4. The flour positive pressure gas separation device according to claim 1, characterized in that, The inner wall of the filter screen (24) is bonded and fixed with a support frame (25), and the support frame (25) is screwed to the inner wall of the filter chamber (2). An exhaust pipe (23) is welded to one side of the inner wall of the filter chamber (2), and the exhaust pipe (23) is located in the inner cavity of the filter screen (24).

5. A flour positive pressure gas separation device according to claim 1, characterized in that, The inner wall of the fixed frame (3) is fitted with a bearing (31) with an interference fit, and the rotating shaft (32) is fitted with an interference fit on the inner ring of the bearing (31).

6. The flour positive pressure gas separation device according to claim 1, characterized in that, The impeller (33) is located inside the connecting pipe (21) and the impeller (33) does not contact the inner wall of the connecting pipe (21). A diverter plate (34) is integrally formed on one side of the outer wall of the impeller (33), and the outer wall of the diverter plate (34) adopts a conical shape design.

7. The flour positive pressure gas separation device according to claim 1, characterized in that, The connecting arm (35) is connected to the rotating shaft (32) by a pin. The connecting arm (35) is located outside the filter screen (24). A brush (36) is glued and fixed to the inner wall of the connecting arm (35). The brush (36) is in contact with the outer wall of the filter screen (24).

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