A small bag of precipitated white carbon black feeding device

Abstract

The utility model discloses a kind of sachet deposition white carbon black feeding devices, comprising: underframe, underframe includes support frame and top plate fixedly installed on support frame, top plate is fixedly installed with hopper downwards;Feed bin, feed bin is fixedly installed on top plate, the side of feed bin is equipped with feeding port, and feed bin is equipped with bin door at feeding port, and elastic discharging structure is equipped in feed bin;Filter bin, filter bin is fixedly installed above feed bin, and centrifugal fan is installed on filter bin, and suction port of centrifugal fan is communicated with filter bin inside, and filter element is installed in filter bin, and the lower end of filter element passes through filter bin and enters into feed bin;Pulse air pipe is connected on filter bin, and the gas outlet of pulse air pipe is located between filter element and centrifugal fan, and pulse valve is equipped on pulse air pipe, and the gas inlet of pulse air pipe is connected high-pressure gas source.This sachet deposition white carbon black feeding device has the advantages of being capable of improving feeding efficiency, reducing labor intensity, and being easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of silicone rubber production technology, and in particular to a small bag precipitated silica feeding device. Background Technology

[0002] In the processing of polymer materials such as rubber, plastics, and coatings, precipitated silica is an important reinforcing agent, thickener, and matting agent. The efficiency and cleanliness of its feeding process directly affect the stability of subsequent production processes and product quality. Currently, for precipitated silica packaged in 15kg bags, the industry generally uses manual feeding to feed it into kneaders or powder storage tanks. This process requires a simple operating table or is carried out directly at the equipment's feed inlet.

[0003] Precipitated silica has physical characteristics such as small particle size, large specific surface area, poor flowability, and easy dust generation. Direct feeding at the equipment's feeding port will cause dust pollution, which is easily inhaled and seriously affects the health of operators. Therefore, a dust-free feeding station is used for feeding. The structure of a dust-free feeding station currently in use is as disclosed in CN202223544493.4. It includes a main hopper with a discharge port and a feeding port. The main hopper is provided with a door at the feeding port. The top of the door is hinged to the main hopper. The key feature is that a gas spring is provided between the door and the main hopper, and the gas spring includes a telescopically connected cylinder and a piston rod. The end of the cylinder away from the piston rod is hinged to the main hopper, and the end of the piston rod away from the cylinder is hinged to the door. When feeding or unloading materials, the silo door is opened upwards and supported by a gas spring. Simultaneously, the blower is activated. Workers pour materials from the feeding port towards the internal inlet. The material enters through the inlet and exits through the bottom outlet for subsequent production needs. Dust generated during this process is sucked away by the blower and filtered through the filter element, reducing dust emissions. When cleaning the filter element after long-term use, the silo door is closed, and high-pressure air is introduced into the pulse air pipe to backflushing the filter element, removing dust adhering to it. This process cleans the filter element while simultaneously recycling some materials, reducing waste.

[0004] However, while 15kg pouches are convenient for manual handling, the raw materials tend to adhere to the inner wall of the pouch and accumulate at the opening during feeding, resulting in a slow natural descent. To speed up the feeding process, operators need to repeatedly shake the pouches up and down. However, due to the limited size of the feeding station, the feeding space is usually quite small, making it difficult to fully utilize the shaking action. This not only consumes a lot of physical strength but also severely restricts production efficiency. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a small bag precipitated silica feeding device that can improve feeding efficiency, reduce labor intensity and is easy to operate.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A small bag precipitated silica feeding device includes:

[0008] The base frame includes a support frame and a top plate fixedly installed on the support frame. A hopper is fixedly installed downward on the top plate, and an electric valve is installed at the lower end of the hopper.

[0009] The feeding bin is fixedly installed on the top plate. A feeding port is provided on one side of the feeding bin. A bin door is provided at the feeding port. The upper end of the bin door is hinged to the feeding bin. Two glove openings are provided on the bin door. Sealing gloves are sealed to the glove openings. An elastic feeding structure is provided inside the feeding bin.

[0010] A filter chamber is fixedly installed above the feeding chamber. A centrifugal fan is installed on the filter chamber, and the air inlet of the centrifugal fan is connected to the inside of the filter chamber. A filter element is installed inside the filter chamber, and the lower end of the filter element passes through the filter chamber and enters the feeding chamber. A pulse air pipe is connected to the filter chamber. The air outlet of the pulse air pipe is located between the filter element and the centrifugal fan. A pulse valve is provided on the pulse air pipe, and the air inlet of the pulse air pipe is connected to a high-pressure air source.

[0011] Thus, when feeding 15kg bags of precipitated silica, open the silo door, place the 15kg bag of precipitated silica through the feeding port onto the flexible feeding structure, cut open the bottom of the 15kg bag of precipitated silica with a knife, then close the silo door. The operator puts on sealed gloves and operates the flexible feeding structure to quickly feed the precipitated silica from the bag. If there is little material remaining, the bag can be shaken by hand to ensure all 15kg of precipitated silica enters the hopper. Alternatively, a knife can be placed inside the feeding silo. After placing the 15kg bag of precipitated silica through the feeding port onto the flexible feeding structure, close the silo door, put on sealed gloves, and use the knife to cut open the bag before operating the flexible feeding structure. The upper opening of the hopper is located inside the silo. The sealed glove design of the feeding hopper allows operators to complete the feeding operation while isolated from the external environment. During operation, the centrifugal fan starts, creating a negative pressure environment in both the filter and feeding hoppers, effectively suppressing dust spillage. The flexible feeding structure assists in the detachment of 15kg bags of precipitated silica from the packaging, solving the problem of inconvenience caused by the size limitation of the feeding hopper when manually shaking the packaging bags. The combination of the filter element and the pulse system prevents precipitated silica from entering the fan, while pulse backflushing achieves self-cleaning of the filter element, ensuring efficient exhaust ventilation. The overall structure solves the problems of dust pollution, time-consuming and labor-intensive operation, and inconvenience of traditional manual feeding, achieving a clean and efficient feeding process.

[0012] Preferably, the two sides of the hopper door are connected to the feeding hopper via gas springs.

[0013] Preferably, the elastic feeding structure includes a support ring, in which several spaced grid bars are fixed, and the lower end of the support ring is circumferentially fixedly connected to the top plate by several compression springs.

[0014] Preferably, the inner ring is fixedly installed downwards on the support ring, the upper end of the hopper is cylindrical and the lower end is conical, and the outer side of the inner ring is slidably fitted with the upper end of the hopper.

[0015] Preferably, the ring is fixedly mounted with several guide posts, the guide posts pass through compression springs, and the top plate is provided with several sliding holes, the guide posts slidingly engaging with the sliding holes.

[0016] In summary, this small bag precipitated silica feeding device has the advantages of improving feeding efficiency, reducing labor intensity, and being easy to operate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a small bag precipitated silica feeding device according to the present invention.

[0018] Figure 2 for Figure 1 Diagram showing the warehouse door in the open position.

[0019] Figure 3 for Figure 2 A diagram showing another location.

[0020] Figure 4 This is a schematic diagram of a flexible feeding structure. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] like Figure 1-4 As shown, a small bag precipitated silica feeding device includes:

[0023] The base frame includes a support frame 1 and a top plate 2 fixedly installed on the support frame. A hopper 3 is fixedly installed downward on the top plate, and an electric valve 4 is installed at the lower end of the hopper.

[0024] The feeding bin 5 is fixedly installed on the top plate. A feeding port is provided on one side of the feeding bin. A bin door 6 is provided at the feeding port. The upper end of the bin door is hinged to the feeding bin. Two glove openings are provided on the bin door. Sealing gloves 7 are sealed to the glove openings. An elastic feeding structure is provided inside the feeding bin.

[0025] A filter chamber 8 is fixedly installed above the feeding chamber. A centrifugal fan 9 is installed on the filter chamber, and the air inlet of the centrifugal fan is connected to the inside of the filter chamber. A filter element 10 is installed inside the filter chamber, and the lower end of the filter element passes through the filter chamber and enters the feeding chamber. A pulse air pipe 11 is connected to the filter chamber. The air outlet of the pulse air pipe is located between the filter element and the centrifugal fan. A pulse valve 12 is provided on the pulse air pipe, and the air inlet of the pulse air pipe is connected to a high-pressure air source 13.

[0026] Thus, when feeding 15kg bags of precipitated silica, open the hopper door, place the bag containing the 15kg bag of precipitated silica through the feeding port onto the flexible feeding structure, cut open the bottom of the bag with a knife, then close the hopper door. The operator puts on sealed gloves and operates the flexible feeding structure to quickly feed the precipitated silica from the bag. If there is little material remaining, the bag can be shaken by hand to ensure all 15kg of precipitated silica enters the hopper. Alternatively, a knife can be placed inside the feeding hopper. After placing the 15kg bag of precipitated silica through the feeding port onto the flexible feeding structure, close the hopper door, put on sealed gloves, cut open the bag with the knife, and then operate the flexible feeding structure. The upper opening of the hopper is located inside the hopper. The sealed glove design of the feeding hopper allows operators to complete the feeding operation while isolated from the external environment. During operation, the centrifugal fan starts, creating a negative pressure environment in both the filter and feeding hoppers, effectively suppressing dust spillage. The flexible feeding structure assists in the detachment of 15kg bags of precipitated silica from the packaging, solving the problem of inconvenience caused by the size limitation of the feeding hopper when manually shaking the packaging bags. The combination of the filter element and the pulse system prevents precipitated silica from entering the fan, while pulse backflushing achieves self-cleaning of the filter element, ensuring efficient exhaust ventilation. The overall structure solves the problems of dust pollution, time-consuming and labor-intensive operation, and inconvenience of traditional manual feeding, achieving a clean and efficient feeding process.

[0027] In implementation, the two sides of the hopper door are connected to the hopper via gas springs 14. Each gas spring includes a telescopically connected cylinder and a piston rod. The end of the cylinder away from the piston rod is hinged to the feeding hopper, and the end of the piston rod away from the cylinder is hinged to the hopper door. The design of the gas springs on both sides of the hopper door allows it to remain stable after opening, requiring no manual support and facilitating quick loading and unloading of packaging bags by operators. When closing, the cushioning effect of the gas springs prevents the hopper door from colliding with the feeding hopper, thus avoiding sealing failure or structural damage.

[0028] Of course, in actual implementation, the bottom of the filter element is set higher than the feeding port to avoid interference between the operator and the filter element when the operator is feeding the material at the feeding port. This ensures the operating space and prevents the filter element from being damaged by contact or collision. In addition, this layout brings the filter element closer to the centrifugal fan's air intake, optimizes the airflow path, improves filtration and ventilation efficiency, and ensures stable negative pressure in the feeding hopper.

[0029] In implementation, the elastic feeding structure includes a support ring 15, within which several spaced grid bars 16 are fixed. The lower end of the support ring is circumferentially connected to a top plate via several compression springs 17. A 15kg bag of precipitated silica is placed on the grid bars for support, preventing it from falling into the hopper. During feeding, the operator wears sealed gloves and repeatedly presses the support ring, causing it to oscillate up and down. The elasticity of the compression springs generates a counter-force when the operator presses the bag, aiding in the loosening and falling of the powder inside. This reduces the force and frequency of manual shaking, occupies little space, and is labor-saving and easy to use. The precipitated silica falls through the gaps between adjacent grid bars.

[0030] In implementation, the inner ring 18 is fixedly installed downwards on the support ring. The upper end of the hopper is cylindrical and the lower end is conical. The outer side of the inner ring is slidably engaged with the upper end of the hopper. The inner ring, which slides with the hopper, guides the up-and-down elastic movement of the support ring, preventing tilting of the support ring due to uneven force on the compression spring and ensuring structural stability. The inner ring faces the hopper, reducing dust dispersion during powder descent and allowing for better powder entry into the hopper.

[0031] In implementation, several guide posts 19 are fixedly installed downwards on the support ring. The guide posts pass through compression springs, and several sliding holes are provided on the top plate. The guide posts slide in conjunction with the sliding holes, providing guidance for the movement of the support ring.

[0032] The small-bag precipitated silica feeding device provided in this application achieves closed and efficient feeding of 15Kg small bags of powder through the synergistic effect of its various structural components: the closed feeding hopper and negative pressure system solve the dust pollution problem, protect the health of operators and reduce raw material waste; the flexible feeding structure, combined with sealed gloves, significantly reduces the intensity of manual labor and shortens the feeding time per bag; the pulse filtration system ensures long-term stable operation of the equipment, reduces maintenance costs, and as a whole meets the clean, efficient and safe requirements of kneaders or powder storage tanks for feeding small-bag precipitated silica.

[0033] Furthermore, the warehouse door is equipped with an observation window 20 and a handle 21.

[0034] principle:

[0035] During operation, the operator opens the silo door and places a 15kg bag of precipitated silica onto the support ring through the feeding port, using the grid bars for support. The silo door is then closed, and the centrifugal fan is started via the PLC controller. The operator, wearing sealed gloves, uses a knife to cut open the bag. The support ring is then pressed and released, causing it to move upwards under the force of the compression spring. Repeating this pressing and releasing creates an up-and-down oscillating motion, accelerating the transfer of the precipitated silica from the bag into the hopper. Throughout this process, the centrifugal fan creates a negative pressure environment in both the filter and feeding silos, preventing dust spillage. After feeding is complete, the centrifugal fan is stopped via the PLC controller. The filter element and pulse system work together to prevent precipitated silica from entering the centrifugal fan. When cleaning the filter element, a high-flow pulse jet is used to backflush it, ensuring timely cleaning. The silo door remains closed during filter element cleaning. The high-pressure air source connected to the pulse air tube can be a high-pressure air tank or a high-pressure air bag.

[0036] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A small bag precipitated silica feeding device, characterized in that, include: The base frame includes a support frame (1) and a top plate (2) fixedly installed on the support frame (1). A hopper (3) is fixedly installed downward on the top plate (2). An electric valve (4) is installed at the lower end of the hopper (3). Feeding bin (5), the feeding bin (5) is fixedly installed on the top plate (2), the feeding bin (5) has a feeding port on one side, the feeding port has a bin door (6), the upper end of the bin door (6) is hinged to the feeding bin (5), the bin door (6) has two glove openings, the glove openings are sealed with sealing gloves (7), and the feeding bin (5) has an elastic feeding structure inside; A filter chamber (8) is fixedly installed above the feeding chamber (5). A centrifugal fan (9) is installed on the filter chamber (8). The air inlet of the centrifugal fan (9) is connected to the inside of the filter chamber (8). A filter element (10) is installed inside the filter chamber (8). The lower end of the filter element (10) passes through the filter chamber (8) and enters the feeding chamber (5). A pulse air pipe (11) is connected to the filter chamber (8). The air outlet of the pulse air pipe (11) is located between the filter element (10) and the centrifugal fan (9). A pulse valve (12) is provided on the pulse air pipe (11). The air inlet of the pulse air pipe (11) is connected to a high-pressure air source (13).

2. The small bag precipitated silica feeding device according to claim 1, characterized in that, The two sides of the silo door (6) are connected to the feeding silo by gas springs (14).

3. The small bag precipitated silica feeding device according to claim 1, characterized in that, The elastic feeding structure includes a support ring (15), and a number of spaced grid bars (16) are fixed inside the support ring (15). The lower end of the support ring (15) is circumferentially connected to the top plate (2) by a number of compression springs (17).

4. The small bag precipitated silica feeding device according to claim 3, characterized in that, The inner ring (18) is fixedly installed downward on the ring (15). The upper end of the hopper (3) is cylindrical and the lower end is conical. The outer side of the inner ring (18) is slidably fitted with the upper end of the hopper (3).

5. The small bag precipitated silica feeding device according to claim 4, characterized in that, The ring (15) is fixedly mounted with several guide posts (19) downwards. The guide posts (19) pass through the compression spring (17). The top plate (2) is provided with several sliding holes. The guide posts (19) slide in cooperation with the sliding holes.

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