A device for collecting sodium tripolyphosphate powder in a cooling drum.

Abstract

This utility model discloses a device for collecting sodium tripolyphosphate powder from a cooling drum, aiming to solve the problem of powder mixed with other materials due to material wear during conveying, resulting in substandard particle size. The device includes a connecting plate installed at the connection end between the screw conveyor and the cooling drum. A negative pressure collection hood is provided on top of the connecting plate, and a bottom shell is installed below it, containing a vibration assembly. An inclined plate is provided on the top of the bottom shell, and the screw conveyor is supported below by support columns, support rods, and an arc-shaped support plate. The vibration assembly includes an arc-shaped mounting strip, an elastic plate, and a cam. Guide strips and guide blocks are provided inside the connecting plate. This device can specifically collect powder generated by the cooling drum and screw conveyor, avoiding substandard particle size, improving raw material utilization, and is easily integrated into existing production lines.

Description

Technical Field

[0001] This utility model relates to the technical field of powder collection devices, and in particular to a device for collecting sodium tripolyphosphate powder from a cooling drum. Background Technology

[0002] Sodium tripolyphosphate, as a food-grade additive, requires extremely high purity during production. The mainstream process involves a two-step process, including neutralization, filtration, spray drying, polymerization, cooling, crushing, and sieving. To prevent pollution, screw conveyors are often used to transport materials during production. However, when the equipment is running, the contact between the screw blades and the protective cover, as well as the friction of the material in the cooling drum, will produce sodium tripolyphosphate powder. Existing collection equipment only covers the spray drying and polymerization processes, and cannot collect the powder generated by the cooling drum and screw conveyor, resulting in raw material waste. Furthermore, it is easy to cause customer complaints due to the product's failure to meet the sieving rate. There is currently no targeted solution in the industry. Summary of the Invention

[0003] The technical problem to be solved by this utility model is that powder is generated after material wear during the material conveying process. The powder mixes into the material, resulting in the material particle size not meeting the standard.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a device for collecting sodium tripolyphosphate powder from a cooling drum, including a connecting plate installed at the connection end of the screw conveyor and the cooling drum, a collecting cover for collecting powder by negative pressure installed on the top of the connecting plate, a bottom shell installed below the connecting plate, and a vibrating component for generating dust by vibration inside the connecting plate.

[0005] Preferably, the bottom shell is fixed to the bottom of the cooling drum, and an inclined plate is fixed to the top of the bottom shell at an angle, the inclined plate being located on one side of the connecting plate and the cooling drum.

[0006] Preferably, a support column is fixedly installed below the screw conveyor, the support column is connected to the movable end of the bottom shell, and a support rod for supporting the screw conveyor is fixedly connected to the top of the support column.

[0007] Preferably, a support plate is fixedly connected to the top of the support rod. The support plate is arc-shaped and fits against the bottom wall of the screw conveyor.

[0008] Preferably, the vibration assembly includes an arc-shaped mounting strip that is vertically slidably connected within the connecting plate, an elastic plate that is fixedly connected to the inner side of the mounting strip, the elastic plates being equidistantly arranged within the mounting strip along the vertical direction, and the vibration assembly further includes a cam that is rotatably arranged within the connecting plate for supporting the mounting strip.

[0009] Preferably, a guide strip is vertically fixed inside the connecting plate, and a guide block is vertically slidably mounted on the bottom of the mounting strip, with the guide blocks evenly distributed on the mounting strip.

[0010] Preferably, the mounting strip protrudes downwards, the elastic plate is an arc-shaped strip and protrudes upwards, and a reinforcing rod is vertically fixed in the middle of the mounting strip, the reinforcing rod being fixedly connected to the middle of the elastic plate.

[0011] This invention provides a device for collecting sodium tripolyphosphate powder from a cooling drum, which has the following beneficial effects.

[0012] 1. By connecting the screw conveyor and cooling drum with the connecting plate, the negative pressure of the collection hood is used to collect the powder generated by the cooling drum and screw conveyor. At the same time, the vibration component shakes up the hidden powder to ensure that the powder is fully captured, effectively avoiding the problem of unqualified particle size caused by powder mixing with other materials, and meeting the customer's strict requirements for product screening rate.

[0013] 2. The bottom shell and inclined plate can guide and recover the falling powder. Combined with the negative pressure collection mechanism, the powder that would otherwise be lost can be effectively recovered and reused, reducing raw material loss and improving production efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a structural front view of an embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0016] In the diagram: 1. Screw conveyor; 2. Cooling drum; 3. Connecting disc; 4. Collection hood; 5. Collection pipe; 6. Bottom shell; 7. Support column; 8. Inclined plate; 9. Support rod; 10. Drive motor; 11. Mounting strip; 12. Elastic plate; 13. Guide block; 14. Guide strip; 15. Flow guide plate; 16. Cam; 17. Reinforcing rod. Detailed Implementation

[0017] like Figure 1 and Figure 2 As shown, this utility model provides a device for collecting sodium tripolyphosphate powder from a cooling drum, including a connecting plate 3 installed at the connection end of the screw conveyor 1 and the cooling drum 2. A collecting cover 4 for collecting powder by negative pressure is installed on the top of the connecting plate 3, and a bottom shell 6 is installed below the connecting plate 3. A vibration component for generating dust by vibration is provided inside the connecting plate 3.

[0018] During the process of the screw conveyor 1 conveying the material to the cooling drum 2, the material passes through the connecting plate 3. During the process of passing through the connecting plate 3, the material is excited by the vibration component, causing the powder in the material to turn into dust. The negative pressure generated by the collection pipe 5 connected to the top of the collection hood 4 is used to suck up the powder. The sucked-up powder is transported through the pipeline to the neutralization reactor for the preparation of neutralization slurry, so as to realize the utilization of the powder.

[0019] Of course, a wear-resistant induced draft fan is installed on the collection pipe 5, and a nitrogen valve is installed on the output pipe of the wear-resistant induced draft fan. When the output pipe is blocked due to the accumulation of powder, nitrogen is used to backflush the inside of the output pipe.

[0020] like Figure 1 As shown. The bottom shell 6 is fixed to the bottom of the cooling drum 2, and an inclined plate 8 is fixed to the top of the bottom shell 6 at an angle. The inclined plate 8 is located on one side of the connecting plate 3 and the cooling drum 2. Since a complete seal cannot be guaranteed between the connecting plate 3 and the cooling drum 2, the bottom shell 6 is installed below the joint between the connecting plate 3 and the cooling drum 2. The bottom shell 6 is U-shaped and is used to collect fallen materials. The main function of the inclined plate 8 is to block the powder overflowing from the joint, so that the powder can also enter the interior of the bottom shell 6.

[0021] like Figure 1 As shown, a support column 7 is fixedly installed below the screw conveyor 1. The support column 7 is connected to the movable end of the bottom shell 6, and a support rod 9 for supporting the screw conveyor 1 is fixedly connected to the top of the support column 7. By setting the support column 7 and the support rod 9 to support the end of the screw conveyor 1, the stability of the screw conveyor 1 during operation is ensured. Moreover, the support column 7 for the end of the bottom shell 6 also improves the stability of the bottom shell 6.

[0022] like Figure 1 As shown. A support plate is fixedly connected to the top of the support rod 9. The support plate is arc-shaped and fits against the bottom wall of the screw conveyor 1. Support rods 9 are arranged at equal intervals on the top of the support column 7. The support plate is stably supported by at least two support rods 9, thereby providing stable support for the screw conveyor 1.

[0023] like Figure 1 and Figure 2As shown. The vibration assembly includes an arc-shaped mounting strip 11 vertically slidably connected within the connecting plate 3. An elastic plate 12 is fixedly connected to the inner side of the mounting strip 11, and the elastic plates 12 are equidistantly arranged within the mounting strip 11 in the vertical direction. The vibration assembly also includes a cam 16 rotatably arranged within the connecting plate 3 to support the mounting strip 11. A drive motor 10 is installed on the outer wall of the connecting plate 3, driving the cam 16 to rotate. During rotation, the cam 16 continuously adjusts its contact position with the mounting strip 11, causing the mounting strip 11 to reciprocate vertically under the action of gravity and the cam 16. As the material entering the connecting plate 3 from the screw conveyor 1 passes through the elastic plate 12, it is continuously pushed up by the elastic plate 12, thereby turning the dust in the material into airborne dust.

[0024] like Figure 2 As shown. A guide bar 14 is vertically fixed inside the connecting plate 3, and a guide block 13 is vertically slidably mounted on the bottom of the mounting strip 11. The guide blocks 13 are evenly distributed on the mounting strip 11. Through the cooperation of the guide bar 14 and the guide block 13, the mounting strip 11 is ensured to move vertically within the connecting plate 3.

[0025] like Figure 2 As shown. The mounting strip 11 protrudes downwards, and the elastic plate 12 is an arc-shaped strip that protrudes upwards. A reinforcing rod 17 is vertically fixed to the middle of the mounting strip 11, and the reinforcing rod 17 is fixedly connected to the middle of the elastic plate 12. The reinforcing rod 17 is used to ensure the stability of the elastic plate 12 and prevent the elastic plate 12 from shaking too much during vertical reciprocating movement, which would push the material and cause it to violently impact the inner wall of the connecting plate 3, thereby reducing the amount of powder generated again.

Claims

1. A device for collecting sodium tripolyphosphate powder from a cooling drum, characterized in that: It includes a connecting plate (3) installed at the connection end of the screw conveyor (1) and the cooling drum (2), a collection cover (4) for collecting powder by negative pressure is installed on the top of the connecting plate (3), a bottom shell (6) is installed below the connecting plate (3), and a vibration component for generating powder dust by vibration is provided inside the connecting plate (3).

2. The device for collecting sodium tripolyphosphate powder in a cooling drum as described in claim 1, characterized in that: The bottom shell (6) is fixed to the bottom of the cooling drum (2), and an inclined plate (8) is fixed to the top of the bottom shell (6) at an angle. The inclined plate (8) is located on one side of the connecting plate (3) and the cooling drum (2).

3. The device for collecting sodium tripolyphosphate powder from a cooling drum as described in claim 1, characterized in that: A support column (7) is fixedly installed below the screw conveyor (1). The support column (7) is connected to the movable end of the bottom shell (6). A support rod (9) for supporting the screw conveyor (1) is fixedly connected to the top of the support column (7).

4. A device for collecting sodium tripolyphosphate powder from a cooling drum as claimed in claim 3, characterized in that: The top of the support rod (9) is fixedly connected to a support plate, which is arc-shaped and adheres to the bottom wall of the screw conveyor (1).

5. The apparatus for collecting sodium tripolyphosphate powder from a cooling drum as described in claim 1, characterized in that: The vibration assembly includes an arc-shaped mounting strip (11) that is vertically slidably connected within the connecting plate (3). An elastic plate (12) is fixedly connected to the inner side of the mounting strip (11). The elastic plate (12) is equidistantly arranged within the mounting strip (11) in the vertical direction. The vibration assembly also includes a cam (16) that is rotatably arranged within the connecting plate (3) to support the mounting strip (11).

6. The apparatus for collecting sodium tripolyphosphate powder from a cooling drum as described in claim 5, characterized in that: The connecting plate (3) is vertically fixed inside a guide strip (14), and the bottom of the mounting strip (11) is fixedly fitted with a guide block (13) that slides vertically on the guide strip (14). The guide blocks (13) are evenly distributed on the mounting strip (11).

7. The apparatus for collecting sodium tripolyphosphate powder from a cooling drum as described in claim 5, characterized in that: The mounting strip (11) is convex downwards, the elastic plate (12) is an arc-shaped strip, and the elastic plate (12) is convex upwards. A reinforcing rod (17) is vertically fixed in the middle of the mounting strip (11), and the reinforcing rod (17) is fixedly connected to the middle of the elastic plate (12).

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