CN219965130U - Novel roller press weighing bin feeding system - Google Patents
Novel roller press weighing bin feeding system Download PDFInfo
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- CN219965130U CN219965130U CN202320661384.6U CN202320661384U CN219965130U CN 219965130 U CN219965130 U CN 219965130U CN 202320661384 U CN202320661384 U CN 202320661384U CN 219965130 U CN219965130 U CN 219965130U
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- Prior art keywords
- screw conveyor
- weighing bin
- roller press
- feeding system
- feeding
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- 238000005303 weighing Methods 0.000 title claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 63
- 239000000843 powder Substances 0.000 claims description 36
- 230000003068 static effect Effects 0.000 claims description 12
- 238000005204 segregation Methods 0.000 abstract description 9
- 239000011362 coarse particle Substances 0.000 abstract description 8
- 239000010419 fine particle Substances 0.000 abstract description 8
- 229920006395 saturated elastomer Polymers 0.000 description 8
- 238000000227 grinding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Abstract
The utility model belongs to the technical field of feeding systems of roller presses, and discloses a novel feeding system of a weighing bin of a roller press. Comprises three screw conveyors; the three screw conveyors are specifically a screw conveyor A, a screw conveyor B and a screw conveyor C; the front end of the screw conveyor C is provided with a belt conveyor for conveying materials, and a discharge port of the screw conveyor A and a discharge port of the screw conveyor B are respectively connected with a feed port of the screw conveyor C; a weighing bin is arranged below the discharge hole of the screw conveyor C, a rotary shaft is arranged at the upper part in the weighing bin, and a plurality of blades are arranged on the rotary shaft; the blades are distributed in a spiral descending mode. The system can enable the coarse and fine particles of the materials in the weighing bin to be evenly distributed, alleviate the segregation phenomenon of the coarse and fine particles of the materials in the weighing bin, ensure the saturation state of feeding of the roller press, form a stable material bed and realize the efficient and stable operation of the roller press.
Description
Technical Field
The utility model belongs to the technical field of feeding systems of roller presses, and relates to a novel feeding system of a weighing bin of a roller press.
Background
The working principle of the roller press is that materials are mutually extruded in a closed space to form a high-pressure material layer for crushing. Realizing the crushing of the high-pressure material layer, wherein forced feeding is required, the material must be filled with a roll gap to form a material column, and the material column reaches a saturated feeding state to form a compact laminated crushing area; if free space exists between the particles, the saturated feeding is not achieved, and a material bed is not formed. Therefore, how to ensure stable material column and reach saturated feeding is the key for ensuring the stable operation of the roller press.
The steel slag grinding production line adopts a high-pressure roller press for grinding, is provided with a secondary closed-circuit powder selecting system of a static powder selecting machine and a dynamic powder selecting machine, coarse powder selected by the static powder selecting machine and the dynamic powder selecting machine is required to return to the high-pressure roller press for circulating grinding, and returned materials directly enter a weighing bin of the roller press and are ground together with new raw materials of a feeding belt. Because the three material flows are simultaneously put into the bin, the material grain grades have larger difference and are mixed together without homogenization, so that the density of the material in the bin is seriously uneven; meanwhile, as the height of the bin is higher, the fall of the material is larger after the material enters the bin, the flow speed of the material is large, and the segregation of coarse and fine particles is serious, namely, the material in the weighing bin has serious segregation phenomenon, so that the passing speed of the material in the axial lead direction of the extrusion roller is asynchronous; the material does not form stable continuous storehouse pressure in the storehouse of weighing, namely can not form stable stock column, can not satisfy the supersaturation operation condition of roll squeezer, can't form the material bed, causes the roll squeezer to operate vibrations big, leads to frequent shut down even.
Therefore, development of a feeding system capable of uniformly distributing coarse and fine particles of materials in a weighing bin, relieving segregation of the coarse and fine particles of the materials in the weighing bin, ensuring a saturated state of feeding of a roller press, forming a stable material bed and realizing efficient and stable operation of the roller press is urgently needed.
Disclosure of Invention
The utility model aims to overcome the defects in the background art, and provides a novel feeding system of a weighing bin of a roller press, which can uniformly distribute coarse and fine particles of materials in the weighing bin, relieve segregation phenomenon of the coarse and fine particles of the materials in the weighing bin, ensure the saturation state of feeding of the roller press, form a stable material bed and realize efficient and stable operation of the roller press.
The grain size of the raw materials of the steel slag grinding production line is 0-10 mm, the grain size of coarse powder returned by a static powder concentrator is mostly 90-2 mm, the grain size of fine powder returned by a dynamic powder concentrator is about 30-90 mu m, the grain size difference of three materials is larger, the three materials in the original process directly enter a weighing bin without mixing, meanwhile, the flow rate of the materials entering the weighing bin is larger due to the fact that the drop is large, the segregation phenomenon of the thick and thin materials is serious, the distribution of the thick and thin materials in the weighing bin is seriously unbalanced, the density of the materials in the weighing bin is uneven, the high-pressure material bed is crushed, forced feeding is required, the materials are required to be filled with roll gaps to form a material column, a saturated feeding state is achieved, a compact laminated crushing area is formed, and if free space exists among the particles, saturated feeding is not achieved, and a material bed is not formed.
The technical scheme adopted for solving the technical problems is as follows: a novel roller press weighing bin feeding system comprises three screw conveyors; the three screw conveyors are specifically a screw conveyor A, a screw conveyor B and a screw conveyor C; the front end of the screw conveyor C is provided with a belt conveyor for conveying materials, and a discharge port of the screw conveyor A and a discharge port of the screw conveyor B are respectively connected with a feed port of the screw conveyor C; a weighing bin is arranged below the discharge hole of the screw conveyor C, a rotary shaft is arranged at the upper part in the weighing bin, and a plurality of blades are arranged on the rotary shaft; the blades are distributed in a spiral descending mode.
The belt conveyor is connected with a feed inlet of the screw conveyor C through a chute.
And a discharge hole of the screw conveyor C is connected with a weighing bin through a chute.
The screw conveyor B is connected with a feed inlet of the screw conveyor C through a chute.
The screw conveyor A is connected with a feed inlet of the screw conveyor C through a chute.
The feeding port of the screw conveyor A is connected with the coarse powder outlet of the static powder concentrator through a chute.
The feed inlet of the screw conveyor B is connected with the fine powder outlet of the dynamic powder selecting machine through a chute.
Further, the blades are fan-shaped blades; the blades are preferably provided in 4.
Further, a weight sensor is arranged on the weighing bin.
Further, the screw conveyor A, the screw conveyor B, the screw conveyor C, the static powder selector, the dynamic powder selector and the belt conveyor are not limited to any model, and the working functions of the screw conveyor A, the screw conveyor B, the screw conveyor C, the static powder selector, the dynamic powder selector and the belt conveyor are all commercial products.
Further, the system is also provided with a PLC control system, and the screw conveyor A, the screw conveyor B, the screw conveyor C, the belt conveyor, the weight sensor, the static powder selector and the dynamic powder selector are respectively connected with the PLC control system, are not limited by any model, and can realize the working function of the system.
The discharge hole at the bottom of the weighing bin is arranged above the counter roller of the roller press. Roll presses are commercially available products, and are used herein for illustration only, regardless of the structure of the present utility model.
Compared with the prior art, the utility model has the following beneficial effects:
compared with the prior art, the novel roller press weighing bin feeding system provided by the utility model has the following advantages:
1. three materials with different thicknesses directly enter the weighing bin from three points, and three materials are mixed by three screw conveyors and then enter the weighing bin from one point, so that the thickness particles of the materials in the weighing bin are uniformly distributed.
2. The rotating shaft with 4 fan-shaped blades is additionally arranged to reduce the flow speed of the materials entering the weighing bin, so that the segregation phenomenon of the materials is relieved, and the materials in the weighing bin form a stable material column, so that the running of the roller press is stabilized.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic diagram of a novel roll squeezer weigh bin feed system of the present utility model.
In the figure, a belt conveyor 1, a screw conveyor A, a screw conveyor 3, a screw conveyor B, a screw conveyor C, a blade 5, a weighing bin 6 and a roller pair of a roller press 7.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to the following examples.
Example 1
A novel roller press weighing bin feeding system, as shown in figure 1, comprises three screw conveyors; the three screw conveyors are specifically a screw conveyor A2, a screw conveyor B3 and a screw conveyor C4; the front end of the screw conveyor C4 is provided with a belt conveyor 1 for conveying materials, and a discharge port of the screw conveyor A2 and a discharge port of the screw conveyor B3 are respectively connected with a feed port of the screw conveyor C4; a weighing bin 6 is arranged below a discharge hole of the screw conveyor C4, a rotary shaft is arranged at the upper part in the weighing bin 6, and a plurality of blades 5 are arranged on the rotary shaft; the blades 5 are distributed in a spiral descending manner.
The belt conveyor 1 is connected with a feed inlet of the screw conveyor C4 through a chute.
And a discharge hole of the screw conveyor C4 is connected with the weighing bin 6 through a chute.
The screw conveyor B3 is connected with a feed inlet of the screw conveyor C4 through a chute.
The screw conveyor A2 is connected with a feed inlet of the screw conveyor C4 through a chute.
The feeding port of the screw conveyor A2 is connected with the coarse powder outlet of the static powder concentrator through a chute.
The feed inlet of the screw conveyor B3 is connected with the fine powder outlet of the dynamic powder selecting machine through a chute.
Further, the blade 5 is a fan-shaped blade 5; the number of blades 5 is preferably 4.
Further, a weight sensor is arranged on the weighing bin 6.
Further, the screw conveyor A2, the screw conveyor B3, the screw conveyor C4, the static powder selector, the dynamic powder selector and the belt conveyor 1 are not limited to any type, and can realize the working functions of the belt conveyor, and the belt conveyor is a commercially available product.
Further, the system is also provided with a PLC control system, and the screw conveyor A2, the screw conveyor B3, the screw conveyor C4, the belt conveyor 1, the weight sensor, the static powder selector and the dynamic powder selector are respectively connected with the PLC control system, are not limited by any model, and can realize the working function of the system.
The discharge hole at the bottom of the weighing bin 6 is arranged above the counter roller 7 of the roller press. Roll presses are commercially available products, and are used herein for illustration only, regardless of the structure of the present utility model.
The method comprises the steps that coarse powder returned by a static powder selecting machine conveyed by a belt conveyor 1 and a screw conveyor A2 and fine powder returned by a dynamic powder selecting machine conveyed by a screw conveyor B3 simultaneously enter a feed inlet of a screw conveyor C4, three materials are mixed and homogenized in the conveying process of the screw conveyor C4, and then discharged into a weighing bin 6 through a feed outlet of the screw conveyor C4, in order to reduce the flow rate of the materials in the falling process of the weighing bin 6, a rotating shaft with 4 fan-shaped blades 5 is additionally arranged in the weighing bin 6, the 4 blades 5 are arranged on the rotating shaft in a spiral descending mode, so that the materials firstly fall on the blades 5 of the rotating shaft when flowing into the weighing bin 6, the descending speed is reduced, the segregation phenomenon of coarse and fine materials is relieved, the coarse and fine particles of the materials in the weighing bin 6 are uniformly distributed, stable material columns are easily formed when the materials enter a roller press to grind, a saturated feeding state is realized, the material bed is formed, the vibration, stop and other phenomena of the roller press are reduced, and the grinding efficiency of the roller press is improved.
According to the novel feeding system of the weighing bin of the roller press, three-point feeding is changed into one-point feeding, the rotating shafts with the 4 fan-shaped blades 5 are additionally arranged, the blades 5 are distributed in a spiral descending mode, so that the falling speed of materials is reduced, the segregation phenomenon of the materials in the weighing bin 6 is relieved, the mixture of the materials in the weighing bin 6 is uniform, stable bin pressure is formed, forced feeding is realized, the materials are favorably filled in a roll gap uniformly to form stable material columns, saturated feeding is achieved, a material bed is further formed, and the running stability and grinding efficiency of the roller press (a commercially available product is not the structure of the utility model) are improved.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (10)
1. A novel roller press weighing bin feeding system is characterized by comprising three screw conveyors; the three screw conveyors are specifically a screw conveyor A (2), a screw conveyor B (3) and a screw conveyor C (4); the front end of the screw conveyor C (4) is provided with a belt conveyor (1) for conveying materials, and a discharge port of the screw conveyor A (2) and a discharge port of the screw conveyor B (3) are respectively connected with a feed port of the screw conveyor C (4); a weighing bin (6) is arranged below a discharge hole of the screw conveyor C (4), a rotating shaft is arranged at the upper part in the weighing bin (6), and a plurality of blades (5) are arranged on the rotating shaft; the blades (5) are distributed in a spiral descending mode.
2. A new roller press weighing compartment feeding system according to claim 1, characterized in that the blades (5) are fan-shaped blades (5).
3. A new roller press weighing compartment feeding system according to claim 2, characterized in that 4 blades (5) are provided.
4. A novel roller press weighing bin feeding system as claimed in claim 3, characterized in that the weighing bin (6) is provided with a weight sensor.
5. A novel roller press weighing bin feeding system as claimed in claim 4, wherein the belt conveyor (1) is connected with the feeding port of the screw conveyor C (4) through a chute.
6. The novel roller press weighing bin feeding system according to claim 5, wherein the discharge port of the screw conveyor C (4) is connected with the weighing bin (6) through a chute.
7. The novel roller press weighing bin feeding system according to claim 6, wherein the screw conveyor B (3) is connected with a feeding hole of the screw conveyor C (4) through a chute.
8. The novel roller press weighing bin feeding system according to claim 7, wherein the screw conveyor A (2) is connected with a feeding hole of the screw conveyor C (4) through a chute.
9. The novel roller press weighing bin feeding system according to claim 8, wherein the feeding hole of the screw conveyor A (2) is connected with the coarse powder outlet of the static powder concentrator through a chute.
10. The novel roller press weighing bin feeding system according to claim 8, wherein the feeding hole of the screw conveyor B (3) is connected with the fine powder outlet of the dynamic powder selecting machine through a chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320661384.6U CN219965130U (en) | 2023-03-30 | 2023-03-30 | Novel roller press weighing bin feeding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320661384.6U CN219965130U (en) | 2023-03-30 | 2023-03-30 | Novel roller press weighing bin feeding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219965130U true CN219965130U (en) | 2023-11-07 |
Family
ID=88583843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320661384.6U Active CN219965130U (en) | 2023-03-30 | 2023-03-30 | Novel roller press weighing bin feeding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219965130U (en) |
-
2023
- 2023-03-30 CN CN202320661384.6U patent/CN219965130U/en active Active
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