A powder feeding device with high-low position difference and dust prevention

Abstract

The utility model discloses a kind of powder feeding device of high-low difference and dustproof by means of difference, including the feeding mechanism of upper layer and the mixing kettle of lower layer, the feeding seat is through from top to bottom, wherein powder is introduced by the feeding seat of upper layer, multiple buffer baffles are spaced apart on the feeding pipe, the outside of buffer baffle is connected with the inner wall of feeding pipe, and the inside forms the gap with the inner wall of feeding pipe, and the guide table that is inclined to inside is formed on the baffle.The utility model discloses a kind of powder feeding device of high-low difference and dustproof by means of difference, multiple buffer baffles are spaced apart on the feeding pipe, the outside of buffer baffle is connected with the inner wall of feeding pipe, and the inside forms the gap with the inner wall of feeding pipe for powder to fall down, buffer baffle is preferably arranged in the lower part of feeding pipe, especially at the discharge port, both buffering of powder and the effect of shielding powder splashing upward can be achieved to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically a powder feeding device that utilizes the height difference and prevents dust. Background Technology

[0002] The method of directly feeding dust from a high position has several problems. For example, when the powder is directly introduced from above, the feeding speed cannot be controlled, and it is easy for the feeding speed to be too fast. As the powder enters the reactor and comes into contact with the liquid surface, it splashes back up through the feeding pipe to the feeding seat. This splashed powder and dust can easily contaminate the reactor when it comes into contact with the liquid. After being re-adsorbed by the negative pressure, the previously adsorbed recyclable powder becomes contaminated. Secondly, if too much powder is added, it is difficult for it to quickly dissolve in the liquid in the reactor, forming a large amount of unreactable material accumulation. This leads to a series of problems (such as the formation of "dry material clumps", causing the agitator torque to soar, the agitator shaft to bend or even break; the accumulation area forms "dead corners", the solvent cannot penetrate, the heat transfer efficiency drops sharply, leading to local overheating or uncontrolled reaction temperature, etc.). Therefore, it is still necessary to slow down and control the feeding speed.

[0003] This case arose in order to resolve the aforementioned issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a powder feeding device that utilizes a height difference and prevents dust accumulation, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a powder feeding device that utilizes the height difference and prevents dust, comprising an upper feeding mechanism and a lower mixing vessel, wherein the feeding seat is vertically connected, and the powder is introduced from the upper feeding seat, wherein multiple buffer baffles are spaced apart on the feeding pipe, the outer side of the buffer baffle is connected to the inner wall of the feeding pipe, and the inner side forms a gap with the inner wall of the feeding pipe, and an inwardly inclined guide platform is formed on the baffle.

[0006] Preferably, the buffer baffle is located at the discharge port of the feeding pipe.

[0007] Preferably, the two adjacent buffer baffles are staggered and arranged in a mirror image of each other.

[0008] Preferably, a support ring is provided at the upper part of the feeding pipe, and a baffle plate is hinged to the lower side of the support ring, wherein the hinge between the baffle plate and the support ring is connected by a coiled spring.

[0009] Preferably, the blocking plate has an array of small holes.

[0010] Preferably, the support ring is provided with a limit stop at the return stroke of the stagnation plate.

[0011] Preferably, a powder suction funnel is provided on the lower side of the feeding seat. The diameter of the powder suction funnel is larger than the diameter of the feeding seat and is placed in a semi-covered manner. The powder suction funnel is connected to the negative pressure main pipe provided above through a negative pressure branch pipe.

[0012] By adopting the above technical solution, this utility model has the following advantages compared with the prior art: 1. This utility model discloses a powder feeding device that utilizes a height difference and prevents dust accumulation. Multiple buffer baffles are spaced apart on the feeding pipe. The outer side of each buffer baffle is connected to the inner wall of the feeding pipe, while the inner side forms a gap with the inner wall to allow powder to fall. The buffer baffles are preferably located in the lower part of the feeding pipe, especially at the discharge port, which not only buffers the powder but also helps to prevent powder from splashing upwards.

[0013] 2. This utility model discloses a powder feeding device that utilizes the height difference and prevents dust. The upper part of the feeding pipe is provided with a support ring, and a baffle plate is hinged to the lower side of the support ring. The baffle plate can fit into the through-hole of the support ring. The hinge between the baffle plate and the support ring is connected by a coiled spring, so that the baffle plate can block the through-hole of the support ring from below when it is not under force, thereby preventing the blockage of a small amount / part of the powder splashed up after feeding is completed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the feeding pipe in this utility model; Figure 3 This is an enlarged schematic diagram of a partial structure at point A in Figure 2 of this utility model.

[0015] In the diagram: 1. Feeding seat; 2. Powder suction funnel; 3. Negative pressure branch pipe; 4. Negative pressure main pipe; 5. Support table; 6. Gathering pipe; 7. Feeding pipe; 8. Mixing vessel; 9. Buffer baffle; 10. Support ring; 11. Restriction plate; 12. Limiting stop bar. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1 As shown: A powder feeding device that utilizes the height difference and prevents dust includes an upper feeding mechanism and a lower mixing vessel 8 (the upper and lower layers mainly refer to the height of the upper and lower floors in the factory). The powder is introduced from the upper feeding seat 1, which is vertically connected. The powder falls into the mixing vessel 8 through the lower feeding pipe 7 by gravity for mixing and reaction.

[0018] Since materials are poured into bags manually, a support base is added to assist in saving labor.

[0019] Because the powder tends to spread easily when introduced into the feeding seat 1, a powder suction funnel 2 is installed on the lower side. The diameter of the powder suction funnel 2 is larger than that of the feeding seat 1, and it is installed in a semi-covered manner. The powder suction funnel 2 is connected to the upper negative pressure main pipe 4 through the negative pressure branch pipe 3, and the negative pressure of the negative pressure main pipe 4 is used to absorb the powder waste from the feeding seat 1, thereby reducing air pollution in the working environment.

[0020] This embodiment improves the feeding pipe 7 by slowing down the feeding speed to reduce material accumulation and dust splashing.

[0021] See appendix Figure 2 As shown, specifically, multiple buffer baffles 9 are spaced apart on the feeding pipe 7. The outer side of the buffer baffle 9 is connected to the inner wall of the feeding pipe 7, and the inner side forms a gap with the inner wall of the feeding pipe 7 to allow the powder to fall. The buffer baffle 9 is preferably located in the lower part of the feeding pipe 7, especially at the discharge port, which can both buffer the powder and prevent the powder from splashing upwards to a certain extent.

[0022] The two adjacent buffer baffles 9 are staggered and preferably arranged in a mirror direction, so that the powder can form a spiral-like buffer when falling. Secondly, inclined guide platforms are formed on the baffles to facilitate the falling of the powder.

[0023] See appendix Figure 3 As shown, a support ring 10 is provided at the upper part of the feeding pipe 7, and a baffle plate 11 is hinged to the lower side of the support ring 10. The baffle plate 11 can fit the through-hole of the support ring 10. The hinge between the baffle plate 11 and the support ring 10 is connected by a coiled spring (considering the durability of the spring, the support ring 10 can be assembled in a conventional detachable manner, such as plug-in or snap-fit). This allows the baffle plate 11 to block the through-hole of the support ring 10 from below when it is not under force, thereby preventing the blockage of a small amount / part of the powder splashed up after feeding.

[0024] Considering that if the baffle plate 11 completely covers the support ring 10, it may cause blockage in the initial stage of feeding, small holes are arrayed on the baffle plate 11, and a limiting stop bar 12 is set on one side, so that the baffle plate 11 cannot completely cover the support ring 10 under the reset of the coil spring, so that the baffle plate 11 can always leave a gap with the support ring 10 to avoid blockage and prevent feeding.

[0025] The above-described embodiments are provided for illustrative purposes. Based on the above description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification; its protection scope must be determined according to the claims.

Claims

1. A powder feeding device that utilizes a height difference and prevents dust accumulation, comprising an upper feeding mechanism and a lower mixing vessel, a feeding seat, and a feeding pipe, wherein the feeding seat is vertically connected, and the powder is introduced from the upper feeding seat, characterized in that: The feeding pipe is provided with multiple buffer baffles at intervals. The outer side of the buffer baffle is connected to the inner wall of the feeding pipe, and the inner side forms a gap with the inner wall of the feeding pipe. The baffle is provided with a guide platform that is inclined inward.

2. The powder feeding device according to claim 1, which utilizes a height difference and prevents dust accumulation, is characterized in that: The buffer baffle is located at the discharge port of the feeding pipe.

3. The powder feeding device according to claim 1, which utilizes a height difference and prevents dust accumulation, is characterized in that: The buffer baffles that are adjacent to each other are staggered and arranged in a mirror image of each other.

4. The powder feeding device according to claim 1, which utilizes a height difference and prevents dust accumulation, is characterized in that: The upper part of the feeding pipe is provided with a support ring, and a baffle plate is hinged to the lower side of the support ring. The baffle plate and the support ring are connected by a coiled spring at the hinge point.

5. A powder feeding device that utilizes a height difference and prevents dust accumulation, as described in claim 4, is characterized in that: The hindrance plate has an array of small holes.

6. A powder feeding device that utilizes a height difference and prevents dust accumulation, as described in claim 4, is characterized in that: The support ring is equipped with a limit stop at the return stroke of the stagnation plate.

7. A powder feeding device that utilizes a height difference and prevents dust accumulation, as described in claim 1, is characterized in that: A powder suction funnel is provided on the lower side of the feeding seat. The diameter of the powder suction funnel is larger than the diameter of the feeding seat and it is placed in a semi-covered manner. The powder suction funnel is connected to the negative pressure main pipe provided above through a negative pressure branch pipe.

Images