CN220484191U - Flow changing device for improving flow characteristics of bulk materials - Google Patents
Flow changing device for improving flow characteristics of bulk materials Download PDFInfo
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- CN220484191U CN220484191U CN202320822869.9U CN202320822869U CN220484191U CN 220484191 U CN220484191 U CN 220484191U CN 202320822869 U CN202320822869 U CN 202320822869U CN 220484191 U CN220484191 U CN 220484191U
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- 239000000463 material Substances 0.000 title abstract description 35
- 239000013590 bulk material Substances 0.000 claims description 13
- 239000010410 layer Substances 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 5
- 235000013305 food Nutrition 0.000 abstract description 4
- 239000011229 interlayer Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 9
- 238000003860 storage Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- -1 mining industry Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The utility model discloses a flow changing device for improving the flow characteristics of bulk materials, which comprises the following components: the material guiding device comprises a silo and a hopper arranged below the silo, wherein a discharge hole is formed in the bottom of the hopper, the hopper is of a double-layer structure, and a plurality of drainage holes are uniformly distributed on the wall of the inner layer of the hopper, so that materials can pass through an interlayer in the drainage Kong Liaodou; the device has the advantages of simple structure, reliable operation, low manufacturing cost, no maintenance and the like, obtains stable and controllable multiple flow forms through a simple and reliable mechanical structure, realizes ideal integral flow, central flow, edge flow, specific regional flow and the like, reduces dead material areas, and can be widely applied to various fields of grains, foods, chemical industry, energy sources and the like.
Description
Technical Field
The utility model relates to a flow changing device, in particular to a flow changing device for improving the flow characteristics of bulk materials.
Background
The silo is used as a storage facility for bulk materials, is widely applied to various fields of grains, foods, cement, mining industry, chemical industry, energy sources and the like, and has the advantages of simple structure, small occupied area, high automation degree and the like.
The silo types are various, wherein the cone bucket type silo has the most wide application due to the simple structure and low cost, but the cone bucket type silo has the following main defects: the bulk materials are easy to generate adverse phenomena such as arching, dead materials, segregation, poor flow, central flow and the like in the bin, so that the adverse phenomena are caused by a plurality of reasons, the forming mechanism is complex, and the bulk materials have direct or indirect relations with the bin type design, the bin wall materials, the cone hopper angles, the bulk material types and internal friction, the loading mode and the temperature and humidity change.
The flow pattern of the bulk materials in the silo can be roughly divided into a dynamic type and a non-dynamic type, and is also called integral flow and central flow; overall flow: when discharging, all bin materials flow, the whole bin materials show a falling situation which is uniform, and the flow pattern can cause the side pressure of the bin wall to be increased sharply, so that the type of flow is also called dynamic flow; central flow: when discharging, only the bin material in the central part flows, the surrounding bin material is stagnant, a dead zone is easy to form, and the bin wall storage pressure of the flow pattern is basically close to the value of static pressure, so that the flow pattern is also called non-dynamic flow.
The whole flow discharging speed is stable, the discharging density is uniform, the discharging sequence is first-in first-out, and the storage time is consistent. The central flow discharging speed is unstable, the discharging density is uneven, the discharging sequence is first in and last out, a dead material area is easy to form, and the storage time is inconsistent.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides a flow changing device for improving the flow characteristics of bulk materials, which obtains stable and controllable various flow forms through a simple and reliable mechanical structure, comprises realizing ideal integral flow, central flow, edge flow, specific regional flow and the like, solves the problems, and can be widely applied to various fields of grains, foods, chemical industry, energy sources and the like.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a flow modifying device for improving flow characteristics of a bulk material, comprising: the hopper is of a double-layer structure, and a plurality of drainage holes are uniformly distributed on the hopper wall of the inner layer, so that materials can pass through an interlayer in the drainage Kong Liaodou.
Further, the hopper comprises: go up the awl and fight, lower awl fight, throttle baffle, drainage cover, go up the awl and fight the interval setting in lower awl and fight the top, a plurality of the drainage cover set up between last awl fight and lower awl fight, throttle baffle sets up the oblique below in drainage hole, throttle baffle's width is less than the width of drainage cover.
Further, the inclined upper part of the drainage cover is fixed on the upper cone bucket which is arranged above the inclined upper part of the drainage hole, and the inclined lower part of the drainage cover is lapped on the inclined surface of the lower cone bucket.
Further, the throttling baffle is fixed on the upper cone through bolts.
Further, the drainage cover includes: two inclined plates which are symmetrically arranged and side plates which are symmetrically arranged at the end parts of the two inclined plates.
Further, the distance between the two side plates in the drainage cover is larger than the length of the throttling baffle.
Further, the drainage holes are half-waist-shaped holes, so that two symmetrically arranged inclined plates are arranged beside the semicircular holes above the half-waist-shaped holes, and the throttling baffle is arranged below the half-waist-shaped holes.
Further, the distance between the two side plates in the drainage cover is smaller than the length of the throttling baffle.
Further, the drainage hole is a circular through hole.
Further, the hopper is a round or square cone hopper.
The beneficial effects of the utility model are as follows: the flow changing device has the advantages of simple structure, reliable operation, low manufacturing cost, no maintenance and the like, obtains stable and controllable multiple flow forms through a simple and reliable mechanical structure, and reduces dead material areas, including ideal integral flow, central flow, edge flow, specific regional flow and the like.
Drawings
FIG. 1 is a schematic cross-sectional view of embodiment 1 of the present utility model;
fig. 2 is a schematic perspective view of embodiment 1 of the present utility model;
FIG. 3 is a schematic view of the structure of the upper cone in embodiment 1 of the present utility model;
fig. 4 is an enlarged view of a portion a of fig. 3;
FIG. 5 is a schematic cross-sectional view of embodiment 2 of the present utility model;
fig. 6 is a schematic perspective view of embodiment 2 of the present utility model;
FIG. 7 is a schematic view of the structure of the upper cone in embodiment 2 of the present utility model;
fig. 8 is an enlarged view of a portion B of fig. 7;
FIG. 9 is a schematic view of a throttle baffle;
in the figure: 1. a lower cone hopper; 11. a discharge port; 2. a cone feeding hopper; 21. drainage holes; 22. a throttle baffle; 23. a drainage cover; 3. a silo.
Description of the embodiments
The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model.
Examples
As shown in fig. 1-4, a flow modifying apparatus for improving flow characteristics of a bulk material, comprising: the material feeding device comprises a silo 3 and a hopper arranged below the silo 3, wherein a discharge hole is formed in the bottom of the hopper, the hopper is of a double-layer structure, and a plurality of drainage holes 21 are uniformly distributed in the wall of the inner layer of the hopper, so that materials can pass through an interlayer in the hopper with the drainage holes 21.
As shown in fig. 1-4, the hopper includes: the upper cone hopper 2, the lower cone hopper 1, the throttle baffle 22 and the drainage cover 23, wherein the upper cone hopper 2 is arranged above the lower cone hopper 1 at intervals, a plurality of the drainage covers 23 are arranged between the upper cone hopper 2 and the lower cone hopper 1, the throttle baffle 22 is arranged below the inclined position of the drainage hole 21, the width of the throttle baffle 22 is smaller than that of the drainage cover 23, materials pass through the drainage hole 21 to flow into the gap between two layers of cone hoppers, slide down to the cone hopper bottom along the cone hopper inclined plane of the lower cone hopper 1 by means of self gravity to converge to the discharge opening 11 to finish discharging, the upper cone hopper 2 is fixed below the silo 3, and the lower cone hopper 1 is arranged at the bottom of the silo 3 and can be tightly attached to the side wall of the silo 3 or fixed on the silo 3.
The width of the throttle baffle 22 is smaller than that of the drainage cover 23, the main measure of throttling, namely, changing the flow, is to change the distance between the throttle baffle 22 and the conical surface of the lower cone hopper 1, the distance is small, the distance is large, the flow is large, the distance is not uniform, the optimal distance is needed to be obtained through a charging test according to different distances of materials, and the size of a window can be changed by cutting or bending the baffle to change the distance, so that flow regulation is realized.
As shown in fig. 1-3, the upper part of the drainage cover 23 is fixed on the upper cone 2 above the drainage hole 21, and the lower part of the drainage cover 23 is lapped on the inclined surface of the lower cone 1.
As shown in fig. 1-3, the throttle baffle 22 is fixed on the upper cone 2 through bolts, so that maintenance and replacement are facilitated.
As shown in fig. 4, the drainage cover 23 includes: two inclined plates which are symmetrically arranged and side plates which are symmetrically arranged at the end parts of the two inclined plates.
As shown in fig. 4, the distance between the two side plates in the flow-guiding cover 23 is larger than the length of the throttle screen 22.
As shown in fig. 4, the drainage hole 21 is a half-waist hole, two symmetrically arranged inclined plates are arranged beside the semicircular hole above the half-waist hole, and the throttle baffle 22 is arranged below the half-waist hole.
As shown in fig. 1-4, the hopper is a circular cone hopper.
Examples
As shown in fig. 5-8, a flow modifying apparatus for improving flow characteristics of a bulk material, comprising: the material feeding device comprises a silo 3 and a hopper arranged below the silo 3, wherein a discharge hole is formed in the bottom of the hopper, the hopper is of a double-layer structure, and a plurality of drainage holes 21 are uniformly distributed in the wall of the inner layer of the hopper, so that materials can pass through an interlayer in the hopper with the drainage holes 21.
As shown in fig. 5-8, the hopper includes: go up awl and fight 2, down awl fight 1, throttle baffle 22, drainage cover 23, go up awl and fight 2 interval setting down awl fight 1 top, a plurality of drainage cover 23 set up between awl fight 2 and lower awl fight 1, throttle baffle 22 sets up in the oblique below of drainage hole 21, the width of throttle baffle 22 is less than the width of drainage cover 23, the material passes the drainage hole 21 and flows to the space of two-layer awl fight, along the awl fight inclined plane of lower awl fight 1, relies on self gravity to the awl fight bottom landing to assemble to discharge opening 11 accomplish the delivery.
The width of the throttle baffle 22 is smaller than that of the drainage cover 23, the main measure of throttling, namely, changing the flow, is to change the distance between the throttle baffle 22 and the conical surface of the lower cone hopper 1, the distance is small, the distance is large, the flow is large, the distance is not uniform, the optimal distance is needed to be obtained through a charging test according to different distances of materials, and the size of a window can be changed by cutting or bending the baffle to change the distance, so that flow regulation is realized.
As shown in fig. 5-7, the upper part of the drainage cover 23 is fixed on the upper cone 2 obliquely above the drainage hole 21, and the lower part of the drainage cover 23 is lapped on the inclined surface of the lower cone 1 obliquely; the throttle baffle 22 is fixed on the upper cone 2 through bolts, so that maintenance and replacement are facilitated.
As shown in fig. 5-8, the distance between the two side plates in the flow-guiding cover 23 is smaller than the length of the throttle screen 22; the drainage hole 21 is a circular through hole;
as shown in fig. 5-7, the hopper is a square cone hopper.
As shown in fig. 9, the throttle screen 22 in examples 1 and 2 has a length a and a width b.
The construction and use method for improving the flow characteristics of the bulk materials comprises the following steps:
firstly, determining design parameters of a well-adapted flow changing device according to different material types and application scenes.
And step two, the cone bucket angle and the cone bucket shape of the flow changing device, the opening area of the drainage hole 21 and the opening of the throttle baffle 22 are not limited due to different material types and application scenes, and all are in line with the actual application scenes of the flow changing device.
Step three, after the design parameters of the flow changing device are determined, the flow condition of the materials in the device can be observed through a small-range loading test to determine whether the window area between the throttle baffle 22 and the lower cone hopper 1 of the relevant area is to be adjusted, the width of the throttle baffle 22 can be adjusted by cutting or bending, if the throttle baffle 22 is adjusted, the flow rate of the materials in the corresponding area can be changed, the flow characteristic of the whole bin of materials is changed, and the flow form meeting the self requirements is obtained by applying the method.
By the construction and use method, ideal arbitrary flow patterns such as integral flow, central flow, edge flow, specific area flow and the like can be realized, so that the applicability of the flow changing device is ensured.
The flow-changing device has the advantages of simple structure, reliable operation, low manufacturing cost, no maintenance and the like, and can be widely applied to various fields of grains, foods, chemical industry, energy sources and the like.
The drainage hole shape in examples 1 and 2 may be a triangular hole, a square hole, or the like.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. A flow modifying device for improving flow characteristics of a bulk material, comprising: the automatic feeding device comprises a silo and a hopper arranged below the silo, wherein a discharge hole is formed in the bottom of the hopper; the hopper comprises: go up the awl and fight, lower awl fight, throttle baffle, drainage cover, go up the awl and fight the interval setting in lower awl and fight the top, a plurality of the drainage cover set up between last awl fight and lower awl fight, throttle baffle sets up the oblique below in drainage hole, throttle baffle's width is less than the width of drainage cover.
2. A flow modifying apparatus for improving flow characteristics of a bulk material as in claim 1, wherein: the inclined upper part of the drainage cover is fixed on the upper cone bucket which is obliquely above the drainage hole, and the inclined lower part of the drainage cover is lapped on the inclined surface of the lower cone bucket.
3. A flow modifying apparatus for improving flow characteristics of a bulk material as in claim 1, wherein: the throttling baffle is fixed on the upper cone hopper through bolts.
4. A flow modifying apparatus for improving flow characteristics of a bulk material as claimed in claim 3, wherein: the drainage cover comprises: two inclined plates which are symmetrically arranged and side plates which are symmetrically arranged at the end parts of the two inclined plates.
5. A flow modifying apparatus for improving flow characteristics of a bulk material as in claim 4, wherein: the distance between the two side plates in the drainage cover is greater than the length of the throttling baffle.
6. A flow modifying apparatus for improving flow characteristics of a bulk material as in claim 5, wherein: the drainage hole is a half-waist-shaped hole, so that two symmetrically arranged inclined plates are arranged beside the semicircular hole above the half-waist-shaped hole, and the throttle baffle is arranged below the half-waist-shaped hole.
7. A flow modifying apparatus for improving flow characteristics of a bulk material as in claim 4, wherein: the distance between the two side plates in the drainage cover is smaller than the length of the throttling baffle.
8. A flow modifying apparatus for improving flow characteristics of a bulk material as in claim 7, wherein: the drainage hole is a circular through hole.
9. A flow modifying apparatus for improving flow characteristics of a bulk material as in claim 1, wherein: the hopper is a round or square cone hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320822869.9U CN220484191U (en) | 2023-04-14 | 2023-04-14 | Flow changing device for improving flow characteristics of bulk materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320822869.9U CN220484191U (en) | 2023-04-14 | 2023-04-14 | Flow changing device for improving flow characteristics of bulk materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220484191U true CN220484191U (en) | 2024-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320822869.9U Active CN220484191U (en) | 2023-04-14 | 2023-04-14 | Flow changing device for improving flow characteristics of bulk materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220484191U (en) |
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2023
- 2023-04-14 CN CN202320822869.9U patent/CN220484191U/en active Active
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