CN220077469U - Round vertical blanking pipe with buffer structure - Google Patents
Round vertical blanking pipe with buffer structure Download PDFInfo
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- CN220077469U CN220077469U CN202320521083.3U CN202320521083U CN220077469U CN 220077469 U CN220077469 U CN 220077469U CN 202320521083 U CN202320521083 U CN 202320521083U CN 220077469 U CN220077469 U CN 220077469U
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- hollow
- cone
- buffer unit
- blanking pipe
- inverted
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- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000003139 buffering effect Effects 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 42
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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Abstract
The utility model discloses a round vertical blanking pipe with a buffer structure, which comprises a blanking pipe and a buffer structure, wherein the blanking pipe is a hollow cylindrical column which is vertically opened up and down, and the buffer structure is arranged in the hollow cylindrical column; the buffer structure comprises a conical buffer unit and an inverted truncated cone-shaped buffer unit; the conical buffer unit is a bottomless hollow cone, the bottom surface diameter of the hollow cone is smaller than that of the hollow cylindrical column, and the vertex of the hollow cone faces upwards; the inverted circular truncated cone-shaped buffer unit is a bottomless hollow inverted circular truncated cone, and the upper bottom edge of the hollow inverted circular truncated cone is tightly connected with the inner wall of the hollow cylindrical column. The falling material can absorb the falling impact force in a sectional way through the buffer structure arranged in the blanking pipe, so that the falling speed is slowed down, and the impact force of the material on a material conveyor or a receiving container and the like below the blanking pipe is greatly reduced. Therefore, the utility model can be widely used for material conveying of vertical blanking pipes, avoids equipment damage and is suitable for pipe diameters of various sizes.
Description
Technical Field
The utility model belongs to the technical field of material conveying facilities, and particularly relates to a round vertical blanking pipe with a buffer structure.
Background
The vertical blanking pipe is used for conveying materials from high to low. Under the action of gravity, the larger the drop, the higher the falling material speed, and the larger the impact force on a material conveyor or a receiving container and the like below the blanking pipe. When the drop is large, the service life of the material conveyor or the receiving container and the like can be influenced by the excessive impact force, and even equipment is directly damaged.
In the case where the drop cannot be reduced, there are two ways to solve this problem. A buffer device is arranged at the receiving side, and a spring or other structures are adopted to buffer the materials falling at high speed, so that the impact force of the materials on receiving equipment is reduced; the other is that a buffer structure is arranged in the blanking pipe, so that the falling speed of the material is directly reduced, and the impact force of the material on receiving equipment is reduced. The buffer device of the first mode is generally complex in structure and high in cost. The second approach has various schemes, but has certain limitations, such as chinese patent:
some are only applicable to square blanking tubes, such as:
chute for processing rice (patent No. 201120097841.0 publication No. 20110914);
a vertical blanking buffer device (patent number 202022860858.9, publication No. 20211022);
a blanking ceramic buffer device (patent number 202222226206.9, publication date 20221122);
some have mechanical rotating parts that are prone to failure, such as:
blanking buffer device of transfer section of belt conveyor (patent number 202211319885.2 publication date 20221220);
some set up buffer structure at the pipe wall, pipeline local atress is inhomogeneous, and is not applicable to the great blanking pipe in cross-section, if:
vertical blanking pipeline buffer device of building rubbish (patent number 201620425666.6 publication date 20161130);
baffle blanking buffer tube apparatus (patent No. 94200625.9 publication No. 19941123);
some are not suitable for blanking tubes of smaller cross section, such as:
buffer blanking device (patent number 202123002069.2 publication No. 20220412);
some have poor wear resistance, such as:
a heavy material buffer blanking channel (patent No. 202023282437.9, publication No. 20210907).
Disclosure of Invention
The utility model aims to solve the technical problem of providing the round vertical blanking pipe with the buffer structure, which has a simple structure and a good effect.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the circular vertical blanking pipe with the buffer structure comprises a blanking pipe and the buffer structure, wherein the blanking pipe is a hollow cylindrical column which is vertically opened up and down, and the buffer structure is arranged in the hollow cylindrical column; the buffer structure comprises a conical buffer unit and an inverted truncated cone-shaped buffer unit; the conical buffer unit is a bottomless hollow cone, the bottom surface diameter of the hollow cone is smaller than that of the hollow cylindrical column, and the vertex of the hollow cone faces upwards; the inverted circular truncated cone-shaped buffer unit is a bottomless hollow inverted circular truncated cone, and the upper bottom edge of the hollow inverted circular truncated cone is tightly connected with the inner wall of the hollow cylindrical column.
The conical buffer unit is positioned above the inverted circular truncated cone-shaped buffer unit.
The hollow cone and the hollow inverted cone are vertically arranged in the hollow cylindrical column and are coaxial with the hollow cylindrical column.
The bottom diameter of the hollow cone is equal to the bottom diameter of the hollow inverted round table.
The bottom angle of the hollow cone is equal to the upper bottom angle of the hollow inverted round table.
The hollow cone and the hollow inverted cone are connected with the inner wall of the hollow cylinder column through rib plates.
The rib plates are uniformly arranged on the circumference of the inner wall of the hollow cylinder.
An angle steel is arranged at the top of the rib plate between the hollow cone and the hollow cylinder, and the inner right angle of the angle steel faces downwards.
The circular vertical blanking pipe with the buffer structure is formed by connecting at least two sections of blanking pipes end to end, and at least one section of blanking pipe is provided with the buffer structure.
In order to solve the problems of the blanking pipe in the existing material conveying, the inventor designs a round vertical blanking pipe with a buffer structure, which comprises the blanking pipe and the buffer structure, wherein the blanking pipe is a hollow cylindrical column which is vertically opened up and down, and the buffer structure is arranged in the hollow cylindrical column; the buffer structure comprises a conical buffer unit and an inverted truncated cone-shaped buffer unit; the conical buffer unit is a bottomless hollow cone, the bottom surface diameter of the hollow cone is smaller than that of the hollow cylindrical column, and the vertex of the hollow cone faces upwards; the inverted circular truncated cone-shaped buffer unit is a bottomless hollow inverted circular truncated cone, and the upper bottom edge of the hollow inverted circular truncated cone is tightly connected with the inner wall of the hollow cylindrical column. During the use, the material that falls is through establishing conical buffer unit and the round platform shape buffer unit of falling in proper order in the blanking intraductal, and buffer structure can sectionally absorb the impact force that the material falls, slows down the material falling speed, greatly reduced the impact force of material to installing at the material conveyer of blanking pipe below or receiving container etc.. Therefore, the utility model can be widely used for reducing the impact force on a material conveyor or a receiving container and the like below the blanking pipe when the material is conveyed from high to low through the vertical blanking pipe in material conveying, and avoiding equipment damage. In addition, because the structure is relatively simple, and the buffer structure and the blanking pipe are uniformly and stably stressed, compared with the existing vertical blanking pipe with the buffer structure, the utility model is applicable to pipe diameters with various sizes.
Drawings
Fig. 1 is a schematic view of the structure of a circular vertical blanking tube (single section) with a buffer structure according to the present utility model.
Fig. 2 is a schematic view of the structure of the section A-A of the circular vertical blanking tube of fig. 1.
FIG. 3 is a schematic view of the structure of section B-B of the circular vertical blanking tube of FIG. 1.
Fig. 4 is a schematic structural view of the blanking pipe in the present utility model.
Fig. 5 is a schematic structural view of a conical buffer unit according to the present utility model.
Fig. 6 is a schematic structural view of an inverted circular truncated cone-shaped buffer unit in the present utility model.
Fig. 7 is a schematic view of the structure of the rib for the conical buffer unit of the present utility model.
Fig. 8 is a schematic view of the structure of the rib for the inverted circular truncated cone-shaped buffer unit of the present utility model.
In the figure: 1 blanking pipe, 2 conical buffer unit, 3 inverted circular truncated cone buffer unit, 4 rib plate for conical buffer unit, 5 rib plate for inverted circular truncated cone buffer unit, 6 angle steel.
Detailed Description
1. Basic structure
The circular vertical blanking pipe with the buffer structure comprises a blanking pipe and the buffer structure, wherein the blanking pipe is a hollow cylindrical column which is vertically opened up and down, and the buffer structure is arranged in the hollow cylindrical column; the buffer structure comprises a conical buffer unit and an inverted truncated cone-shaped buffer unit; the conical buffer unit is a bottomless hollow cone, the bottom surface diameter of the hollow cone is smaller than that of the hollow cylindrical column, and the vertex of the hollow cone faces upwards; the inverted circular truncated cone-shaped buffer unit is a bottomless hollow inverted circular truncated cone, and the upper bottom edge of the hollow inverted circular truncated cone is tightly connected with the inner wall of the hollow cylindrical column. Wherein, for obtaining better effect, the structure can be further arranged as follows. Such as
The conical buffer unit is positioned above the inverted circular truncated cone-shaped buffer unit, but the position exchange of the conical buffer unit and the inverted circular truncated cone-shaped buffer unit does not affect the realization of the technical scheme.
The hollow cone and the hollow inverted cone are vertically arranged in the hollow cylindrical column and are coaxial with the hollow cylindrical column.
The bottom diameter of the hollow cone is equal to the bottom diameter of the hollow inverted round table.
The bottom angle of the hollow cone is equal to the upper bottom angle of the hollow inverted round table.
The hollow cone and the hollow inverted cone are connected with the inner wall of the hollow cylinder column through rib plates.
The rib plates are uniformly arranged on the circumference of the inner wall of the hollow cylinder.
An angle steel is arranged at the top of the rib plate between the hollow cone and the hollow cylinder, and the inner right angle of the angle steel faces downwards.
The round vertical blanking pipe can be formed by connecting one section or more than two sections of blanking pipes end to end, and each section of blanking pipe is provided with a buffer structure. The number of the blanking pipes is determined according to the total length of the blanking pipes, and the blanking pipes can be directly welded or connected by flanges, so that the required blanking pipes are finally formed.
2. Principle of operation
When falling materials pass through each section of blanking pipe, most of the falling materials fall on the conical buffer unit around the central line of the blanking pipe, and the impact force on the conical buffer unit is small due to the small falling height. The material is blocked by the conical buffer unit to change direction, slides along the side surface of the conical buffer unit from the space between the outer wall of the conical buffer unit and the inner wall of the blanking pipe, and simultaneously the sliding speed is reduced due to the action of friction force.
After the falling material leaves the conical buffer unit, the falling material falls near the inner wall of the blanking pipe due to the action of inertia and falls to the inner side surface of the inverted circular truncated cone-shaped buffer unit, and the impact force on the inverted circular truncated cone-shaped buffer unit is small due to the small falling height. The material is blocked by the inverted circular truncated cone-shaped buffer unit to change direction, and slides off from the space formed by the inner wall of the inverted circular truncated cone-shaped buffer unit along the side surface of the inverted circular truncated cone-shaped buffer unit, so that the sliding speed is reduced due to the action of friction force. After falling materials leave the inverted circular truncated cone-shaped buffer unit, the falling materials fall around the center line of the blanking pipe due to the action of inertia and enter the next section of blanking pipe.
Therefore, the buffer structure absorbs the impact force of the falling of the material in a segmented manner, the falling speed of the material is slowed down, and the impact force of the material on a material conveyor or a receiving container and the like arranged below the blanking pipe is greatly reduced.
3. Manufacturing and installing
The technical scheme of the utility model is further described in detail below with reference to the accompanying drawings. All dimensions in the description are in mm. The blanking pipe, the conical buffer unit and the inverted truncated cone-shaped buffer unit are all made of steel plates, and a Q355B steel plate with the thickness of 10mm can be generally selected. The rib plate material and thickness are the same as blanking pipe steel plate.
As shown in FIG. 4, the circular blanking pipe 1 is made of Q355B steel plate with the wall thickness delta, wherein delta is 10, and if the section of the blanking pipe is too large or the abrasion of conveyed materials is too strong, the thickness of the steel plate can be properly increased. The diameter of the inner section of the round blanking pipe is D, and the length is L. D is determined according to 1.5 times of the diameter of the inner section of the blanking pipe when the buffer structure is not arranged; l is sized in conjunction with fig. 1, l=l1+l2+l3+l4+l5, where L1, L5 are preferably 300, L3 are preferably 600, L2 is as defined in fig. 5, and L4 is as defined in fig. 6. L1, L3 and L5 can be increased appropriately according to the specific conditions of the conveyed materials.
As shown in fig. 5, the conical buffer unit 2 is made of a Q355B steel plate having a wall thickness δ. The diameter d1 of the lower bottom of the cone is equal to the diameter of the inner section of the blanking pipe required when no buffer structure is arranged, the included angle alpha between the generatrix of the cone and the horizontal plane is the repose angle of the conveyed material, and the height L2=1/2×d1×tan alpha of the cone.
As shown in fig. 6, the inverted circular truncated cone-shaped buffer unit 3 is made of a Q355B steel plate having a wall thickness δ. The diameter D1 of the lower bottom of the inverted circular truncated cone is equal to the diameter of the inner section of the blanking pipe required by the blanking pipe without the buffer structure, the diameter d2=D-2 of the upper bottom, the included angle alpha between the generatrix of the inverted circular truncated cone and the horizontal plane is the repose angle of the conveyed material, and the height L4=1/2× (D2-D1) of the inverted circular truncated cone is multiplied by tan alpha.
As shown in fig. 7, the rib 4 for the conical buffer unit is made of a Q355B steel plate having a wall thickness δ, the rib is in the shape of a right trapezoid, the lower bottom a=1/2× (D-2) of the trapezoid, the upper bottom b=1/2× (D-D1-2), and the height L2 is the height of the conical buffer unit 2.
As shown in fig. 8, the rib 5 for the inverted circular truncated cone-shaped buffer unit is made of a Q355B steel plate having a wall thickness δ, the rib is in the shape of an isosceles triangle, the base=2×l4 of the triangle, the height c=l4/tan α of the triangle is the height of the inverted circular truncated cone-shaped buffer unit 3, and α is the angle between the bus bar of the inverted circular truncated cone and the horizontal plane.
As shown in fig. 1, 4 rib plates 5 for the inverted circular truncated cone-shaped buffer units are uniformly and circumferentially welded on the side surface of the inverted circular truncated cone-shaped buffer unit 3, so that the blanking pipe is uniformly stressed, then the structure is welded on the inner wall of the circular blanking pipe 1, and the upper bottom of the inverted circular truncated cone-shaped buffer structure 3 and the rib plates 5 for the inverted circular truncated cone-shaped buffer units are firmly welded with the inner wall of the circular blanking pipe 1. The bottom of the inverted cone-shaped buffer unit 3 is spaced from the outlet of the circular blanking pipe 1 by a distance L5, and generally, L5 is 300mm. 4 ribs (such as the cross section of the blanking pipe is oversized, the number of rib plates can be properly increased, when the diameter of the blanking pipe is larger than or equal to 1m, 2 ribs are additionally arranged) for the conical buffer unit, the rib plates 4 are uniformly distributed and welded on the side face of the conical buffer unit 2 along the circumference, in order to prevent the abrasion of materials to the rib plates, L36 multiplied by 5 angle steel (right angles of the angle steel are right opposite to the falling direction of the materials) is arranged at the top of the rib plates, then the structure is welded on the inner wall of the circular blanking pipe 1, the rib plates 5 for the inverted circular truncated cone-shaped buffer unit are firmly welded with the inner wall of the circular blanking pipe 1, and the distance between the vertex of the conical buffer unit 2 and the inlet of the circular blanking pipe 1 is L1, and in general, L1 is 300mm. All the weld heights are the thinnest piece thickness at the weld.
After determining the length L of the blanking pipe with the buffer structure, if the total length of the blanking pipe is less than L, the utility model is not applicable. If the total length of the blanking pipes is more than or equal to L, determining the required quantity of the blanking pipes with buffer structures according to the total length of the blanking pipes, wherein the blanking pipes with buffer structures of all sections can be directly welded or connected by flanges, and finally the required blanking pipes are formed.
Claims (9)
1. The utility model provides a take buffer structure's circular vertical blanking pipe, includes blanking pipe and buffer structure, its characterized in that: the blanking pipe is a hollow cylindrical column which is vertically opened up and down, and the buffer structure is arranged in the hollow cylindrical column; the buffer structure comprises a conical buffer unit and an inverted truncated cone-shaped buffer unit; the conical buffer unit is a bottomless hollow cone, the bottom surface diameter of the hollow cone is smaller than that of the hollow cylindrical column, and the vertex of the hollow cone faces upwards; the inverted circular truncated cone-shaped buffer unit is a bottomless hollow inverted circular truncated cone, and the upper bottom edge of the hollow inverted circular truncated cone is tightly connected with the inner wall of the hollow cylindrical column.
2. The circular vertical blanking tube with cushioning structure of claim 1, wherein: the conical buffer unit is positioned above the inverted circular truncated cone-shaped buffer unit.
3. The circular vertical blanking tube with cushioning structure of claim 1, wherein: the hollow cone and the hollow inverted cone are vertically arranged in the hollow cylindrical column and are coaxial with the hollow cylindrical column.
4. The circular vertical blanking tube with cushioning structure of claim 1, wherein: the bottom surface diameter of the hollow cone is equal to the bottom diameter of the hollow inverted circular truncated cone.
5. The circular vertical blanking tube with cushioning structure of claim 1, wherein: the bottom angle of the hollow cone is equal to the upper bottom angle of the hollow inverted circular table.
6. The circular vertical blanking tube with cushioning structure of claim 1, wherein: the hollow cone and the hollow inverted cone are connected with the inner wall of the hollow cylindrical column through rib plates.
7. The circular vertical blanking tube with cushioning structure of claim 6, wherein: the rib plates are uniformly arranged on the circumference of the inner wall of the hollow cylinder column.
8. The circular vertical blanking tube with cushioning structure of claim 7, wherein: and angle steel is arranged at the top of the rib plate between the hollow cone and the hollow cylindrical column, and the inner right angle of the angle steel faces downwards.
9. The circular vertical blanking tube with buffering structure as claimed in claim 1, wherein the circular vertical blanking tube is formed by connecting at least two sections of blanking tubes end to end, and at least one section of blanking tube is provided with a buffering structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320521083.3U CN220077469U (en) | 2023-03-17 | 2023-03-17 | Round vertical blanking pipe with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320521083.3U CN220077469U (en) | 2023-03-17 | 2023-03-17 | Round vertical blanking pipe with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220077469U true CN220077469U (en) | 2023-11-24 |
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ID=88825678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320521083.3U Active CN220077469U (en) | 2023-03-17 | 2023-03-17 | Round vertical blanking pipe with buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220077469U (en) |
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2023
- 2023-03-17 CN CN202320521083.3U patent/CN220077469U/en active Active
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