CN212944054U - Aggregate screen for screening coarse aggregates with different length ratios - Google Patents
Aggregate screen for screening coarse aggregates with different length ratios Download PDFInfo
- Publication number
- CN212944054U CN212944054U CN202021358654.9U CN202021358654U CN212944054U CN 212944054 U CN212944054 U CN 212944054U CN 202021358654 U CN202021358654 U CN 202021358654U CN 212944054 U CN212944054 U CN 212944054U
- Authority
- CN
- China
- Prior art keywords
- aggregate
- sieve
- bottom plate
- screening
- length ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012216 screening Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 description 8
- 239000010426 asphalt Substances 0.000 description 6
- 239000008187 granular material Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model relates to a sieve that gathers materials that is used for different length ratio coarse aggregate screening, including curb plate (1) and bottom plate (2) that link to each other, be equipped with a set of criss-cross sieve mesh (3) on bottom plate (2), the central line of two upper and lower opposite sides (3 a) of sieve mesh (3) is bisected with the central line mutually perpendicular of two left and right sides opposite side (3 b), and every opposite side length of sieve mesh (3) is 2.36mm ~19mm, and the length ratio of every opposite side and its central line is 1:5~1: 2. The utility model has the advantages of simple structure, the pattern is pleasing to the eye, and is with low costs, economical and practical, can effectively sieve the coarse aggregate particle of different length ratio scopes, and the screening efficiency is higher, the method is simpler.
Description
Technical Field
The utility model belongs to the technical field of highway engineering test equipment technique that gathers materials and specifically relates to a collection sieve that is used for different length ratio coarse aggregates screening.
Background
In the asphalt mixture, the coarse aggregate is crushed stone particles with the size not less than 2.36mm, is used as one of main raw materials of the asphalt mixture, has the usage amount accounting for about 45 percent of the total amount of the mixture, plays a role of a skeleton and plays a vital role in the high-temperature stability and the skid resistance of the asphalt mixture.
Coarse aggregates are mainly formed by crushing ores or gravels, the morphology of which has a significant influence on the compaction and permanent deformation resistance of the mixture, and the morphology of the coarse aggregates is generally described by a long axis, a middle axis and a length ratio. Wherein, the length of the long axis is the maximum size of the aggregate particles, the length of the middle axis is the maximum size of a plane vertical to the long axis in the aggregate, the length of the short axis is the maximum size vertical to both the long axis and the middle axis, and the length-to-short ratio is the ratio of the length of the long axis to the length of the short axis. Researches show that the number distribution of particles with different length ratios in the coarse aggregates is different, and the performances of the asphalt mixtures are greatly different. Therefore, it is necessary to distinguish between different length-to-length ratio range particles of the coarse aggregate so as to study the effect of different length-to-length ratio coarse aggregate particles on the performance of the asphalt mixture.
At present, the method for detecting the particle size ratio of coarse aggregates for asphalt mixtures in the Highway engineering aggregate test Specification (JTG E42-2005) in China is a vernier caliper method, and when a large number of samples are available, the method has low detection efficiency and is complicated in test.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to solve the problem that current coarse aggregate screening efficiency is low, provides a collection material sieve that is used for different length ratio coarse aggregate screening, and simple structure can conveniently confirm the particle content of different length ratio scopes among the coarse aggregate fast, improves the efficiency of sorting.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an aggregate sieve for screening coarse aggregates with different length ratios comprises side plates and a bottom plate which are connected, wherein a group of cross-shaped sieve pores is arranged on the bottom plate, a central connecting line of two upper and lower opposite sides of each sieve pore is perpendicular to and bisected by a central connecting line of two left and right opposite sides of each sieve pore, the length of each opposite side of each sieve pore is 2.36-19 mm, and the length ratio of each opposite side to the central connecting line is 1: 5-1: 2.
Further, the length ratio of each opposite side to the connecting line of the centers of the opposite sides is 1:5, 1:4, 1:3 and 1: 2.
Furthermore, the side plates and the bottom plate are made of stainless steel materials.
Further, the bottom plate is circular, and the side plates are arranged around the edge of the bottom plate.
Further, the height of the side plate is half of the radius of the bottom plate.
The technical scheme of the utility model in, can effectively sieve the coarse aggregate granule of different length ratio scopes through the cross sieve, compare traditional slide caliper method, the utility model discloses a device detects the length ratio efficiency of coarse aggregate granule higher, the method is simpler, simple structure, and the pattern is pleasing to the eye, and is with low costs, economical and practical.
Drawings
Fig. 1 is a perspective view of a collecting screen for screening coarse aggregates with different length ratios according to the present invention;
fig. 2 is a top view of the aggregate screen for screening coarse aggregates with different length ratios of the present invention.
Detailed Description
Example 1
For the purpose of making the present invention clearer, the following description is made with reference to the accompanying drawings, which illustrate the present invention further, and the embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
Referring to fig. 1 and 2, an aggregate screen for screening coarse aggregates with different length ratios comprises a side plate 1 and a bottom plate 2 which are connected and both made of stainless steel materials, wherein the bottom plate 2 is circular, the side plate 1 is arranged around the edge of the bottom plate 2, and the height of the side plate 1 is half of the radius of the bottom plate 2;
the bottom plate 2 is provided with a group of cross-shaped sieve holes 3, the central connecting line of two upper and lower opposite sides 3a of the sieve holes 3 and the central connecting line of two left and right opposite sides 3b of the sieve holes are mutually perpendicular and equally divided, the length of each opposite side of the sieve holes 3 is 2.36 mm-19 mm, and the ratio of the length of each opposite side to the length of the central connecting line is 1:5, 1:4, 1:3 and 1: 2.
When the device is used for screening, for example, a method for screening particles with different length ratio ranges from a coarse aggregate with the particle size of 4.75mm comprises the following steps:
(1) selecting a certain mass of aggregate;
(2) screening the aggregate of step 1 using a laboratory standard screen;
(3) screening coarse aggregates with different length ratio ranges by using aggregate sieves with the rectangular width of 4.75mm and the connection line ratio of the opposite sides to the center of the aggregate sieves of 1:5, 1:4, 1:3 and 1:2 respectively, and carrying out secondary screening on the sieved aggregates of a laboratory standard sieve with the width of 4.75 mm;
(4) data are collated and summarized, and the length ratio of the surplus aggregate particles of an aggregate sieve passing through an aggregate sieve with the rectangular width of 4.75mm and the ratio of 1:2 is 1: 2-1: 1; the length ratio of the surplus aggregate particles passing through the aggregate sieve with the rectangular width of 4.75mm and the ratio of 1:3 is 1: 3-1: 2; the length ratio of the surplus aggregate particles passing through the aggregate sieve with the rectangular width of 4.75mm and the ratio of 1:4 is 1: 4-1: 3; the particle length ratio of the particles passing through the collecting sieve with the rectangular width of 4.75mm and the ratio of 1:5 is 1: 5-1: 4.
The utility model discloses in, stainless steel material makes the sieve sturdy and durable, and is convenient for clean, can effectively sieve the coarse aggregate granule of different length ratio scopes through the cross sieve, compares traditional slide caliper method, the utility model discloses a length ratio efficiency that the device detected the coarse aggregate granule is higher, the method is simpler, simple structure, and the pattern is pleasing to the eye, and is with low costs, economical and practical.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (5)
1. The utility model provides an aggregate sieve that is used for different length ratio coarse aggregate screening, includes curb plate (1) and bottom plate (2) that link to each other, its characterized in that:
a group of cross-shaped sieve holes (3) are formed in the bottom plate (2), the central connecting line of two upper and lower opposite sides (3 a) of each sieve hole (3) and the central connecting line of two left and right opposite sides (3 b) of each sieve hole are perpendicular and bisected, the length of each opposite side of each sieve hole (3) is 2.36-19 mm, and the length ratio of each opposite side to the central connecting line is 1: 5-1: 2.
2. The aggregate screen for screening coarse aggregates of different size ratios according to claim 1, wherein:
the length ratio of the connecting line of each opposite side and the center thereof is 1:5, 1:4, 1:3 and 1: 2.
3. An aggregate screen for screening coarse aggregates of different size ratios according to claim 1 or 2, characterised in that:
the side plates (1) and the bottom plate (2) are made of stainless steel materials.
4. An aggregate screen for screening coarse aggregates of different size ratios according to claim 1 or 2, characterised in that:
the bottom plate (2) is circular, and the side plates (1) are arranged around the edge of the bottom plate (2).
5. A aggregate screen for screening coarse aggregate of different size ratios according to claim 4, wherein:
the height of the side plate (1) is half of the radius of the bottom plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021358654.9U CN212944054U (en) | 2020-07-13 | 2020-07-13 | Aggregate screen for screening coarse aggregates with different length ratios |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021358654.9U CN212944054U (en) | 2020-07-13 | 2020-07-13 | Aggregate screen for screening coarse aggregates with different length ratios |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212944054U true CN212944054U (en) | 2021-04-13 |
Family
ID=75391431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021358654.9U Active CN212944054U (en) | 2020-07-13 | 2020-07-13 | Aggregate screen for screening coarse aggregates with different length ratios |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212944054U (en) |
-
2020
- 2020-07-13 CN CN202021358654.9U patent/CN212944054U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105862542B (en) | Small-particle size macroporous multilayer porous asphalt pavement structure | |
| CN206229696U (en) | A kind of vertical particle tealeaves skimming screening plant | |
| CN108536956A (en) | A kind of mixing proportion design method that building waste is used for asphalt | |
| CN212944054U (en) | Aggregate screen for screening coarse aggregates with different length ratios | |
| CN108646007A (en) | A kind of Test model synthetic techniques of bituminous paving recycling old material conglomeration characteristic | |
| CN205528470U (en) | Building rubbish preparation regeneration building material's production facility | |
| CN111339680A (en) | Grading composition design method for large-particle-size graded crushed stone | |
| CN103255696A (en) | Semi-rigid pavement structure and joint type graded broken stone mixture used in semi-rigid pavement structure | |
| CN205761745U (en) | Cell size magnetic filter device | |
| CN210386568U (en) | Test device for rapidly sorting needle flaky particles | |
| CN216094781U (en) | Automatic efficient anti-blocking sand screening equipment | |
| CN210098155U (en) | Punching type double-layer sand and stone separating screen | |
| CN205599512U (en) | Graphite screening machine | |
| CN208146365U (en) | A kind of construction sand sifter with pooling feature | |
| CN201618686U (en) | Sieving and collecting vibration sieve | |
| CN206046481U (en) | A kind of lotus seed grading screens machine | |
| CN209334137U (en) | A kind of aggregate screening equipment | |
| CN208194901U (en) | It is a kind of for compounding the vibrating screen of powder | |
| CN205816171U (en) | A kind of sandstone defecator for building | |
| CN202146853U (en) | Fine powder sieve plate | |
| CN213682297U (en) | Novel municipal administration road rainwater collection processing system | |
| CN219519467U (en) | Novel portable standard inspection sieve | |
| CN217120769U (en) | Novel screening plant is used in fine work aggregate classification | |
| CN215507812U (en) | Be used for mining area ecological remediation to sieve processing apparatus with soil grit | |
| CN215179424U (en) | Portable needle sheet-shaped gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |