CN223352194U - A concrete aggregate grading and screening device - Google Patents
A concrete aggregate grading and screening deviceInfo
- Publication number
- CN223352194U CN223352194U CN202422168897.0U CN202422168897U CN223352194U CN 223352194 U CN223352194 U CN 223352194U CN 202422168897 U CN202422168897 U CN 202422168897U CN 223352194 U CN223352194 U CN 223352194U
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- aggregate
- screen
- cylinder
- feeding
- concrete aggregate
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Abstract
本实用新型提供一种混凝土骨料分级筛选设备，属于混凝土骨料分级筛选技术领域，包括支架，支架的中部设置有筛筒，支架的一端设置有入料筒，入料筒与筛筒连通，入料筒的底部设置有转柱，转柱的顶部设置有分散盘，分散盘的形状为锥形，分散盘能够在入料时对骨料进行分散，入料筒的中部内壁设置有环形斜台，环形斜台位于分散盘的下侧，可以减缓骨料下降速度；本实用新型可以降低骨料对入料筒的冲击，延长入料筒的使用寿命。
The utility model provides a concrete aggregate grading and screening device, which belongs to the technical field of concrete aggregate grading and screening. The device comprises a bracket, a screen cylinder is arranged in the middle of the bracket, a feed cylinder is arranged at one end of the bracket, the feed cylinder is communicated with the screen cylinder, a rotating column is arranged at the bottom of the feed cylinder, a dispersion disk is arranged on the top of the rotating column, the dispersion disk is conical in shape, and the dispersion disk can disperse the aggregate when feeding. An annular inclined platform is arranged on the inner wall of the middle of the feed cylinder, and the annular inclined platform is located on the lower side of the dispersion disk, which can slow down the descending speed of the aggregate. The utility model can reduce the impact of the aggregate on the feed cylinder and extend the service life of the feed cylinder.
Description
Technical Field
The utility model relates to the technical field of concrete aggregate screening, in particular to concrete aggregate classifying and screening equipment.
Background
Concrete aggregates are one of the main components of concrete and are mainly divided into two main categories, coarse aggregates and fine aggregates. Coarse aggregates generally comprise stones, crushed stone or crushed stone of various sizes. The coarse aggregate provides a framework for the concrete, and has important influence on the strength and durability of the concrete. The fine aggregate is usually sand, sometimes also including gravel or slag. The fine aggregate fills in the gaps between the coarse aggregates, affecting workability and final strength of the concrete. In order to ensure that the quality and performance of the concrete meet engineering requirements, the concrete aggregate needs to be classified and screened.
Common screening methods typically use a vibrating screen or a trommel screen. The rotary screen screens the aggregates through the rotary roller, and the aggregates with different particle sizes are separated through different sieve holes.
For the shale shaker, the pan feeding mouth of drum sieve generally can make aggregate more concentrate when the pan feeding to conveniently get into inside the cylinder, nevertheless because coarse aggregate generally falls for vertical when getting into the drum sieve, has great kinetic energy, concentrate in one for a long time and carry out the pan feeding and can cause lasting permanent impact to equipment, lead to pan feeding department wearing and tearing aggravation, reduction equipment's life, therefore need a hierarchical screening equipment that can reduce aggregate to equipment impact.
Disclosure of utility model
In view of the above, the utility model provides a concrete aggregate classifying and screening device, which can reduce the impact of aggregates on a feeding cylinder and prolong the service life of the feeding cylinder.
In order to solve the technical problems, the utility model provides a concrete aggregate classifying and screening device, which comprises a support, wherein the middle part of the support is rotationally connected with a screen drum, the middle part of the screen drum is provided with a plurality of screen openings arranged in an array, one end of the support is provided with a feeding drum, the feeding drum is communicated with the screen drum, one end of the screen drum, which is close to the feeding drum, is higher than one end, which is far away from the feeding drum, the diameter of the screen opening is sequentially increased from one end, which is close to the feeding drum, to one end, which is far away from the feeding drum, of the screen drum, the inner wall of the bottom of the feeding drum is rotationally connected with a rotary column, the top of the rotary column is fixedly connected with a dispersion disc, the dispersion disc is conical, the top diameter of the dispersion disc is smaller than the bottom diameter, the dispersion disc can disperse aggregates during feeding, the annular inclined table is fixedly connected with the inner wall of the middle part of the feeding drum, and the annular inclined table is positioned at the lower side of the dispersion disc, so that the aggregate dropping speed can be slowed down, the aggregates can enter the screen drum at a lower speed, the impact on the feeding drum is reduced, and the service life of the feeding drum is prolonged.
The middle part of the annular inclined table is provided with an annular chute, the middle part of the annular chute is connected with an annular sliding block in a sliding manner, and the middle part of the annular sliding block is fixedly connected with the middle part of the rotating column, namely, the middle part of the rotating column is supported and guided, so that shaking is prevented.
The bottom of the rotary column is fixedly connected with a plurality of stirring ribs which are arranged in an up-down array around the central axis of the rotary column, so that the uniform dispersion of aggregate is facilitated, and the screening efficiency and the aggregate quality are improved.
The middle part fixedly connected with toper platform of revolving post, the top diameter of toper platform is less than the bottom diameter, breaks up the aggregate promptly, helps improving screening efficiency.
The inner wall of the middle part of the screen cylinder is fixedly connected with a plurality of spiral sheets which are arranged around the central axis of the screen cylinder in an array manner, namely, the rolling movement of aggregates in the screening process is promoted, and the accumulation of the aggregates is prevented.
The top of the feeding cylinder is fixedly connected with a collecting cover, the inner diameter of the top of the collecting cover is smaller than the inner diameter of the bottom of the collecting cover, namely aggregates are guided to enter the screening system in a concentrated mode, and feeding efficiency is improved.
The middle part fixedly connected with mounting panel of support, the one side that is close to the screen drum of mounting panel rotates and is connected with the driving pulley, the one end that the screen drum is close to the mounting panel fixedly connected with driven pulley, driving pulley and driven pulley pass through belt transmission connection, promptly drive screen drum rotation.
In summary, compared with the prior art, the application has at least one of the following beneficial technical effects:
1. the annular inclined table and the dispersing plate jointly slow down the descending speed of aggregate, so that the aggregate can enter the screen cylinder at a lower speed, the impact of the aggregate on the feeding cylinder is reduced, the feeding cylinder is effectively protected, and the service life of the feeding cylinder is prolonged.
2. When the aggregates pass through the conical table, the aggregates can be dispersed, the mutual aggregation among the aggregates is reduced, the aggregates are stirred and dispersed in the descending process due to the synergistic effect of the annular sliding blocks and the stirring ribs, the uniformity of the aggregates is improved, the aggregates are conveniently screened, and the aggregates are ensured to uniformly enter the screen drum.
Drawings
FIG. 1 is a schematic structural view of a concrete aggregate classifying and screening device according to the present utility model;
FIG. 2 is an enlarged schematic view of the structure of the present utility model A;
FIG. 3 is a schematic view of the structure of the rotary column of the present utility model;
fig. 4 is a schematic view of the structure of the conical table of the present utility model.
Reference numerals illustrate:
100. The device comprises a bracket, a screen drum, 102, a feeding drum, 103, spiral sheets, 104, a collecting cover, 105, a mounting plate, 106, a driving belt pulley, 107, a driven belt pulley, 108 and a belt;
201. the device comprises a rotating column, a 202, a dispersion disk, 203, an annular inclined table, 204, an annular sliding block, 205, stirring ribs, 206 and a conical table;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.
As shown in fig. 1-4, the embodiment provides a concrete aggregate grading screening device, which comprises a support 100, wherein the middle part of the support 100 is rotationally connected with a screen drum 101, the middle part of the screen drum 101 is provided with a plurality of screen openings arranged in an array, one end of the support 100 is provided with a feeding drum 102, the feeding drum 102 is communicated with the screen drum 101, one end of the screen drum 101, which is close to the feeding drum 102, is higher than one end, which is far away from the feeding drum 102, of the screen opening, the diameter of the screen opening sequentially increases from one end, which is close to the feeding drum 102, to one end, which is far from the feeding drum 102, of the screen drum 101, a plurality of spiral sheets 103 which are arranged in an array around the central axis of the screen drum 101 are fixedly connected with a mounting plate 105, one side, which is close to the screen drum 101, of the mounting plate 105 is rotationally connected with a driving pulley 106, one end, which is close to the mounting plate 105, is fixedly connected with a driven pulley 107, the driving pulley 106 and the driven pulley 107 are in a transmission connection through a belt 108, one side, which is far from the screen drum 101, of the mounting plate 105 is provided with a screening motor, and the output shaft of the screening motor is fixedly connected with the center of the driving pulley 106;
Through pan feeding section of thick bamboo 102 pan feeding, then control screening motor operation, make driving pulley 106 rotate, and then drive driven pulley 107 and screen drum 101 rotation through belt 108 transmission, the rotation of screen drum 101 makes the aggregate roll motion in screen drum 101 inside, the aggregate can be through the screen cloth mouth of different diameters in the roll process, realize the hierarchical screening, because the slope design of screen drum 101, the aggregate can naturally remove to the one end of keeping away from pan feeding section of thick bamboo 102 of screen drum 101 in the screening process, make the aggregate abundant obtain the screening of the screen cloth mouth of different diameters, thereby accomplish whole screening process, the flight 103 is rotatory at screen drum 101, help the aggregate to roll better, prevent that the aggregate from piling up or sliding in screen drum 101, ensure screening efficiency quality, simultaneously, flight 103 also helps slowing down the whereabouts speed of aggregate, reduce the impact to screen drum 101.
The collection hood 104 is shown in figures 1 and 3,
The top of the feeding barrel 102 is fixedly connected with the collecting cover 104, the top inner diameter of the collecting cover 104 is smaller than the bottom inner diameter of the collecting cover 104, the bottom inner wall of the feeding barrel 102 is rotationally connected with the rotary column 201, the top of the rotary column 201 is fixedly connected with the dispersion disc 202, the dispersion disc 202 is conical, the top diameter of the dispersion disc 202 is smaller than the bottom diameter, the dispersion disc 202 can disperse aggregate during feeding, the middle inner wall of the feeding barrel 102 is fixedly connected with the annular inclined table 203, the annular inclined table 203 is positioned at the lower side of the dispersion disc 202, the inclined surface of the annular inclined table 203 faces upwards, one side of the inclined surface of the annular inclined table 203, which is close to the dispersion disc 202, is positioned at the bottom, and one side of the inclined surface of the annular inclined table 203, which is far away from the dispersion disc 202, is positioned at the top, so that the aggregate descending speed can be slowed down;
When the aggregate is fed, the aggregate firstly enters the feeding cylinder 102 through the collecting cover 104, the collecting cover 104 guides the aggregate to gather towards the center of the feeding cylinder 102, the aggregate is guided to fall on the dispersion plate 202, the aggregate is dispersed in the falling process due to the conical design of the dispersion plate 202, the accumulation of the aggregate is further avoided, then, part of the aggregate slides down along the annular inclined table 203, the annular inclined table 203 and the dispersion plate 202 jointly slow down the falling speed of the aggregate, the aggregate can enter the screen cylinder 101 at a lower speed, the impact of the aggregate on the feeding cylinder 102 is reduced, the feeding cylinder 102 is effectively protected, and the service life of the feeding cylinder 102 is prolonged.
The annular slider 204 is as shown in figure 4,
An annular sliding groove is formed in the middle of the annular inclined table 203, the middle of the annular sliding groove is connected with an annular sliding block 204 in a sliding manner, the middle of the annular sliding block 204 is fixedly connected with the middle of the rotary column 201, central axes of the annular sliding block 204, the annular inclined table 203 and the rotary column 201 are overlapped, a plurality of stirring ribs 205 which are arranged around the central axis of the rotary column 201 in an up-down array manner are fixedly connected to the bottom of the rotary column 201, a rotating motor is arranged at the bottom of the support 100, an output shaft of the rotating motor is fixedly connected with the bottom center of the rotary column 201, a conical table 206 is fixedly connected to the middle of the rotary column 201, the conical table 206 is positioned on the lower side of the annular inclined table 203, and the top diameter of the conical table 206 is smaller than the bottom diameter;
When the aggregate falls, the rotating electrical machines are operated to enable the rotary column 201 to rotate, and then the annular sliding block 204 is driven to slide in the annular sliding groove, the annular sliding block 204 is used for fixing the upper end of the rotary column 201, the rotary column 201 is prevented from shaking, meanwhile, the stirring ribs 205 and the conical table 206 are also rotated along with the rotary column 201, the aggregate can be dispersed when passing through the conical table 206, mutual aggregation among the aggregates is reduced, the aggregate is stirred and dispersed due to the synergistic effect of the annular sliding block 204 and the stirring ribs 205 in the falling process, the uniformity of the aggregate is improved, follow-up screening of the aggregate is facilitated, the aggregate is ensured to uniformly enter the screen drum 101, and the screening efficiency is improved.
Working principle:
Aggregate enters through the feeding cylinder 102, firstly, aggregate is gathered towards the center of the feeding cylinder 102 through the collecting cover 104, the aggregate falls on the dispersing disc 202, the aggregate is further dispersed in the falling process, accumulation is avoided, part of aggregate slides down along the annular inclined table 203, the annular inclined table 203 and the dispersing disc 202 jointly slow down the falling speed of the aggregate, the impact of the aggregate on the feeding cylinder 102 is reduced, the feeding cylinder 102 is protected, in the falling process of the aggregate, the rotating motor drives the rotating column 201 to rotate, the annular sliding block 204 is driven to slide in the annular sliding groove, meanwhile, the stirring rib 205 rotates along with the rotating column 201, the aggregate is stirred and dispersed in the falling process, the uniformity of the aggregate is improved, the aggregate is further dispersed when passing through the conical table 206, the aggregate is reduced, after entering the screen cylinder 101, the screening motor drives the driving pulley 106 to rotate, the driven pulley 107 and the screen cylinder 101 to rotate through the belt 108, the rotation of the screen cylinder 101 enables the aggregate to roll in the inside the screen cylinder 101, the aggregate is screened through the screen openings with different diameters, the graded screening is realized, the spiral sheet 103 rotates in the screen cylinder 101, the aggregate can slide better in the screen cylinder 101 or the screen cylinder 101 is prevented from accumulating, the quality is guaranteed, and the screening quality is guaranteed.
In addition, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (7)
1. The concrete aggregate grading screening device is characterized by comprising a support (100), wherein a screen cylinder (101) is arranged in the middle of the support (100), one end of the support (100) is provided with a feeding cylinder (102), the feeding cylinder (102) is communicated with the screen cylinder (101), a rotating column (201) is arranged at the bottom of the feeding cylinder (102), a dispersion disc (202) is arranged at the top of the rotating column (201), the dispersion disc (202) is conical, aggregates can be dispersed by the dispersion disc (202) during feeding, an annular inclined table (203) is arranged on the inner wall of the middle of the feeding cylinder (102), and the annular inclined table (203) is arranged at the lower side of the dispersion disc (202) and can slow down the dropping speed of the aggregates.
2. The concrete aggregate classifying and screening device according to claim 1, wherein an annular chute is formed in the middle of the annular chute (203), an annular sliding block (204) is arranged in the middle of the annular chute, and the middle of the annular sliding block (204) is arranged in the middle of the rotary column (201).
3. A concrete aggregate classifying screen apparatus according to claim 1, wherein a plurality of stirring ribs (205) arranged in an up-down array are provided at the bottom of said rotary column (201).
4. A concrete aggregate classifying screen apparatus according to claim 1, wherein a tapered table (206) is provided in the middle of the rotary column (201).
5. A concrete aggregate classifying screen apparatus according to claim 1, wherein a plurality of spiral pieces (103) arranged in an array are provided in the middle of the screen cylinder (101).
6. A concrete aggregate classifying screen apparatus according to claim 1, wherein a collecting cover (104) is provided on the top of said feeding cylinder (102).
7. A concrete aggregate classifying and screening device according to claim 1, wherein a mounting plate (105) is arranged in the middle of the bracket (100), a driving pulley (106) is arranged on one side of the mounting plate (105), a driven pulley (107) is arranged at one end, close to the mounting plate (105), of the screen drum (101), and the driving pulley (106) and the driven pulley (107) are driven by a belt (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422168897.0U CN223352194U (en) | 2024-09-04 | 2024-09-04 | A concrete aggregate grading and screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422168897.0U CN223352194U (en) | 2024-09-04 | 2024-09-04 | A concrete aggregate grading and screening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223352194U true CN223352194U (en) | 2025-09-19 |
Family
ID=97041628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422168897.0U Active CN223352194U (en) | 2024-09-04 | 2024-09-04 | A concrete aggregate grading and screening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223352194U (en) |
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2024
- 2024-09-04 CN CN202422168897.0U patent/CN223352194U/en active Active
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