Feeding and conveying device capable of improving raw material batching uniformity

Abstract

The invention provides a feeding and conveying device capable of improving the batching uniformity of raw materials, and relates to the technical field of glass production, the feeding and conveying device comprises a conveying belt, and the conveying belt is pulled by two first carrier rollers located on the same horizontal plane, two second carrier rollers located on the same horizontal plane and a third carrier roller; the horizontal plane where the second carrier rollers are located is below the horizontal plane where the first carrier rollers are located, the second carrier rollers are located between the horizontal plane where the first carrier rollers are located and the horizontal plane where the second carrier rollers are located, and the third carrier roller is located between the two first carrier rollers. The working face of the conveying belt is divided into a main material discharging area located between the two first carrier rollers, an auxiliary material discharging area located between one first carrier roller and the third carrier roller and a material spreading area located between the third carrier roller and one second carrier roller. Silica sand is fed in the main material discharging area, and dolomite and sodium carbonate are fed in the auxiliary material discharging area. The batching device has the advantages of simple structure, uniform batching and the like.

Description

Technical Field

[0001] This invention relates to the field of glass production technology, and in particular to a feeding and conveying device for improving the uniformity of raw material batching. Background Technology

[0002] After all the raw materials required for glass production are weighed by electronic scales, they are laid out in a sandwich-like layer on the collection belt according to the set feeding sequence and appropriate time intervals, laying the foundation for uniform mixing in the next step. The mixer mixes the batch material evenly according to the dry mixing time, water addition amount and wet mixing time set by the program. The mixed batch material is then evenly mixed with crushed glass on the belt conveyor and transported to the kiln head silo.

[0003] The quality of the batch material plays a crucial role in the quality of glass. The higher the uniformity of the batch material, the more beneficial it is to the melting process. The smaller the standard deviation of the batch material, the better the quality and the greater its effect on stable production.

[0004] Existing technical problems:

[0005] 1) The vibrating feeder used for silica sand, dolomite and soda ash is affected by the weight and moisture of the material, resulting in an unstable feed rate.

[0006] 2) Silica sand contains a certain amount of moisture. When the vibrating feeder feeds material, the amount of material fed is not the same, which causes the silica sand to be laid in a "mountain shape" on the working surface of the belt conveyor. Because the vibrating machine and the belt conveyor are at a certain height, under the influence of the vertical drop, when dolomite and soda ash are mixed with silica sand, some powder material adheres to the silica sand, while some granular material flows to both sides.

[0007] 3) The belt conveyor runs under the drive of the idler rollers. The working surface of the belt is U-shaped. The silica sand discharge falls in the middle position, accounting for 50% of the U-shaped area of ​​the belt. The remaining space on both sides is occupied by other raw materials during discharge, resulting in stratification when the materials are mixed. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention proposes a feeding and conveying device that improves the uniformity of ingredient mixing.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a feeding and conveying device for improving the uniformity of raw material batching, characterized in that it includes a conveyor belt, which is pulled by two first idlers, two second idlers, and a third idler on the same horizontal plane. The horizontal plane of the second idlers is below the horizontal plane of the first idlers, and the second idlers are located between the horizontal planes of the first and second idlers. The third idler is located between the two first idlers. The working surface of the conveyor belt is divided into a main material feeding area between the two first idlers, an auxiliary material feeding area between one of the first idlers and the third idler, and a spreading area between the third idler and one of the second idlers. Silica sand is fed in the main material feeding area, and dolomite and soda ash are fed in the auxiliary material feeding area.

[0010] Furthermore, a scraper is installed on the conveyor belt located above the auxiliary material feeding area and with the working surface facing downwards.

[0011] Silica sand is fed into the main material feeding area. At the end of the main material feeding area, the silica sand detaches from the main material feeding area and falls into the beginning of the spreading area. At the same time, dolomite and soda ash are added in the auxiliary material feeding area so that these auxiliary materials can be covered by silica sand in the spreading area, forming a material layer structure of silica sand covering auxiliary materials.

[0012] This approach does not interfere with the material on the conveyor belt, thus avoiding material spillage and preventing disruption to the smooth operation of the conveyor belt. Instead, it first feeds the water-containing silica sand onto the conveyor belt, and through the traction design of the conveyor belt, it forms an auxiliary material feeding area. Before the auxiliary material is fed into this area, a blank working area is formed. Although there is no material in this blank working area, it contains a certain amount of moisture. At this time, the auxiliary material composed of powder and granules is fed into this area, which not only reduces dust, but also weakens the material stratification caused by multiple feedings.

[0013] Specifically, this is because silica sand accounts for a larger proportion of the material, while auxiliary materials account for a smaller proportion. Silica sand contains moisture, while auxiliary materials do not. If the auxiliary materials are added first, followed by a large amount of water-containing silica sand, a significant amount of silica sand will easily fall onto the surface of the smaller, dusty auxiliary materials, causing dust pollution. Furthermore, the falling silica sand will also detach from the auxiliary materials on the conveyor belt, resulting in uneven distribution of the auxiliary materials on the conveyor belt. If the silica sand is added first, followed by the auxiliary materials, the auxiliary materials will be scattered on the surface and sides of the silica sand, forming a distinct multi-layered material structure.

[0014] In this scheme, no special treatment is applied to the conveyor belt. It is simply pulled to form a layered structure, allowing the silica sand to be fed first. The material with more moisture settles at the bottom of the conveyor belt. Then, the silica sand is detached from the conveyor belt, forming a blank area. Auxiliary materials are added to the blank area. The auxiliary materials not only do not generate dust, but also adhere stably to the surface of the conveyor belt and are not easily pushed away when covered by silica sand. Moreover, when the material is fed at the end of the spreading area, since both the main material and the auxiliary material contain moisture, they can detach from the conveyor belt relatively synchronously, which provides a basis for the uniformity of subsequent mixing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the feeding and conveying device.

[0016] Legend: 1. First idler roller; 2. Second idler roller; 3. Third idler roller; 4. Main material feeding area; 5. Auxiliary material feeding area; 6. Material spreading area; 7. Scraper. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1 As shown, the conveyor belt includes a conveyor belt pulled by two first idlers 1, two second idlers 2, and a third idler 3, all on the same horizontal plane. The horizontal plane of the second idlers 2 is below the horizontal plane of the first idlers 1, and the second idlers 2 are located between the horizontal planes of the first idlers 1 and the second idlers 2. The third idler 3 is located between the two first idlers 1. The working surface of the conveyor belt is divided into a main material feeding area 4 located between the two first idlers 1, an auxiliary material feeding area 5 located between one of the first idlers 1 and the third idler 3, and a spreading area 6 located between the third idler 3 and one of the second idlers 2. Silica sand is fed into the main material feeding area 4, and dolomite and soda ash are fed into the auxiliary material feeding area 5.

[0019] A scraper 7 is installed on the conveyor belt located above the auxiliary material feeding area 5 and with its working surface facing downwards.

[0020] Silica sand is fed into the main material feeding area 4. At the end of the main material feeding area 4, the silica sand detaches from the main material feeding area 4 and falls into the beginning of the spreading area 6. At the same time, dolomite and soda ash are added in the auxiliary material feeding area 5 so that these auxiliary materials can be covered by silica sand in the spreading area 6, forming a silica sand-covered auxiliary material layer structure. A hanging structure can also be set on the downward working surface at the end of the spreading area 6.

[0021] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A feeding and conveying device for improving the uniformity of raw material batching, characterized in that, The conveyor belt is pulled by two first idlers (1) on the same horizontal plane, two second idlers (2) on the same horizontal plane and a third idler (3). The horizontal plane of the second idler (2) is below the horizontal plane of the first idler (1). The second idler (2) is between the horizontal plane of the first idler (1) and the horizontal plane of the second idler (2). The third idler (3) is between the two first idlers (1). The working surface of the conveyor belt is divided into a main material feeding area (4) between the two first idlers (1), an auxiliary material feeding area (5) between one of the first idlers (1) and the third idler (3), and a spreading area (6) between the third idler (3) and one of the second idlers (2). Silica sand is fed in the main material feeding area (4), and dolomite and soda ash are fed in the auxiliary material feeding area (5).

2. The feeding and conveying device for improving the uniformity of raw material batching according to claim 1, characterized in that, A scraper (7) is installed on the conveyor belt located above the auxiliary material feeding area (5) and with the working surface facing down.

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