CN216965396U - Aggregate screening device for concrete mixing plant - Google Patents

Abstract

The utility model discloses an aggregate screening device for a concrete mixing plant, and belongs to the technical field of screening devices. An aggregate screening device of a concrete mixing plant comprises: a housing; the first screening cylinder and the second screening cylinder are fixedly connected in the shell from top to bottom in sequence; the feeding hopper is fixedly connected to the shell, and a discharge port is connected with a feed port of the first screening barrel; the aggregate screening device can be used for screening aggregates with different particle sizes in a multi-stage mode, meets different use requirements, is high in practicability, can be lifted while the aggregates are movably screened, prevents a fine filter screen and a coarse filter screen from being blocked by the aggregates, effectively improves the screening efficiency of the device for the aggregates, can continuously add and screen the aggregates without stopping a machine, effectively improves the continuity of the device in screening, greatly improves the screening efficiency, is high in practicability and suitable for popularization and use.

Description

Aggregate screening device for concrete mixing plant

Technical Field

The utility model relates to the technical field of screening devices, in particular to an aggregate screening device for a concrete mixing plant.

Background

The aggregate is also called as aggregate, and the granular materials which play a role in skeleton and filling in concrete and mortar comprise fine aggregate and coarse aggregate, wherein the particle diameter of the fine aggregate is between 0.16 and 5mm, natural sand such as river sand, sea sand, valley sand and the like is generally adopted, and when the natural sand is lacked, artificial sand ground by hard rocks can be used; the particle diameter of the coarse aggregate is more than 5mm, the broken stone concrete has higher strength than the pebble concrete under the same condition, but the broken stone is formed by crushing rocks and has higher cost than the pebbles, and the common coarse aggregate in the light aggregate concrete has natural porous rocks such as pumice and the like and artificial porous aggregates such as ceramsite, expanded slag and the like.

However, when the concrete mixing plant is grading the aggregate, generally can adopt vibrating or drum-type to carry out the aggregate screening, when adopting vibrating screening, when vibration range is great, make the aggregate splash all around easily, the security is lower, when vibration range is less, the aggregate is stopped up the screen cloth easily, when the screen cloth is stopped up, need shut down the mediation screen cloth, thereby lead to work efficiency lower, when adopting drum-type screening, though can solve the problem that the screen cloth is stopped up, but when feeding in raw material or arranging the material, need shut down the operation, lead to work efficiency low equally easily, the practicality is lower, consequently need a security height urgently, prevent blockking up, the device that can last screening again solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the existing aggregate screening device is low in working efficiency, and provides an aggregate screening device for a concrete mixing plant.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an aggregate screening device of a concrete mixing plant, comprising: a housing; the first screening cylinder and the second screening cylinder are fixedly connected in the shell from top to bottom in sequence; the feeding hopper is fixedly connected to the shell, and a discharge hole is connected with a feed hole of the first screening barrel; the two motors are respectively and fixedly connected to one sides of the shell, which are close to the first screening cylinder and the second screening cylinder; the spiral propelling paddle is rotationally connected in the first screening cylinder and the second screening cylinder, and one end of the spiral propelling paddle is fixedly connected with the output end of the motor; the lifting plates are uniformly distributed on the spiral propelling paddle; the fine filter screen and the coarse filter screen are respectively arranged at the bottoms of the first screening cylinder and the second screening cylinder; the feeding plate is rotatably connected to one end, close to the discharge port, of the bottom of the first screening cylinder and one end of the bottom of the second screening cylinder, and the other end of the feeding plate obliquely extends downwards out of the shell; the two ends of the connecting pipe are respectively connected with the discharge hole of the first screening cylinder and the feed hole of the second screening cylinder; and the bulk aggregate storage box is arranged at the lower end of the shell, which is close to the discharge hole of the second screening cylinder.

In order to facilitate the filtration treatment of the raised dust, preferably, the upper end of the shell is provided with a suction fan, a suction pipe of the suction fan extends into the shell and is fixedly connected with a suction disc, a plurality of suction openings are uniformly distributed at the bottom of the suction disc, the shell is fixedly connected with a filter box, an air inlet of the filter box is connected with an air outlet of the suction fan, and a dust filtering plate is arranged in the filter box.

In order to facilitate the disassembly and assembly of the dust filter plates, two groups of dust filter plates are arranged in the filter box, and the dust filter plates are connected with the filter box in a sliding manner.

In order to prevent the raise dust from flowing out, furthermore, the lower end of one side of the shell close to the bulk aggregate storage box is rotatably connected with a first sealing plate, and a second sealing plate is rotatably connected in the feeding hopper through a torsion spring.

In order to improve the silencing effect, preferably, the silencing pads are fixedly connected to the inner walls of the first screening cylinder and the second screening cylinder.

In order to prevent the aggregates from leaving the feeding plate towards two sides under the action of vibration, the feeding plate is preferably provided with a material guiding groove.

In order to facilitate the aggregate on the feeding plates to flow out quickly, preferably, the two feeding plates are fixedly connected with an expansion spring at one end far away from the first screening barrel and one end far away from the second screening barrel, and the other end of the expansion spring is fixedly connected with the shell.

In order to facilitate making the aggregate that can be even distribution in the bold aggregate bin, preferably, fixedly connected with flow distribution plate in the bold aggregate bin, the both sides downward sloping gradually of flow distribution plate, the discharge gate fixedly connected with of a second screening section of thick bamboo arranges the material pipe, arrange the discharge gate setting of material pipe and locate directly over bold aggregate bin intermediate position.

In order to facilitate workers to move the large aggregate storage box out of the shell, furthermore, the bottom of the large aggregate storage box is rotatably connected with a moving wheel, a sliding rail is arranged at the bottom of the shell, and the moving wheel rolls in the sliding rail.

In order to improve the stability of the large aggregate storage box, furthermore, one end, far away from the first sealing plate, of the large aggregate storage box is fixedly connected with a first magnetic block, the inner side, close to the first magnetic block, of the shell is fixedly connected with a second magnetic block, and the first magnetic block and the second magnetic block are attracted mutually.

Compared with the prior art, the utility model provides an aggregate screening device for a concrete mixing plant, which has the following beneficial effects:

1. according to the aggregate screening device for the concrete mixing plant, aggregates can be screened in multiple stages through the arrangement of the fine filter screen and the coarse filter screen, so that aggregates with different particle sizes can be screened out, different use requirements are met, the practicability is high, the aggregates can be lifted while being movably screened through the arrangement of the motor, the spiral propeller and the lifting plate, the fine filter screen and the coarse filter screen are prevented from being blocked by the aggregates, and the screening efficiency of the aggregate screening device is effectively improved;

2. the aggregate screening device for the concrete mixing plant can also continuously add and screen aggregates without stopping a machine, so that the continuity of the device in screening is effectively improved, the screening efficiency is greatly increased, and the practicability is high;

3. this kind of concrete mixing plant aggregate screening plant through the setting of suction fan, air suction disc, rose box, dust filter plate, can prevent that the raise dust that the screening in-process produced from diffusing to the outside air, has not only ensured that staff's is healthy, has still ensured air quality, has played good environmental protection effect.

The device has the advantages that the parts which are not involved are the same as or can be realized by adopting the prior art, the aggregate can be screened in multiple stages, so that aggregates with different particle sizes can be screened, different use requirements are met, the practicability is high, the aggregates can be lifted while being moved and screened, a fine filter screen and a coarse filter screen are prevented from being blocked by the aggregates, the screening efficiency of the device on the aggregates is effectively improved, meanwhile, the device can continuously add and screen the aggregates without stopping a machine, the continuity of the device in the screening process is effectively improved, the screening efficiency is greatly improved, the practicability is high, and the device is suitable for popularization and use.

Drawings

FIG. 1 is a schematic structural diagram of an aggregate screening device of a concrete mixing plant provided by the utility model;

FIG. 2 is a schematic structural diagram of the upper half part of an aggregate screening device of a concrete mixing plant, which is provided by the utility model;

FIG. 3 is a schematic structural diagram of the lower half part of the aggregate screening device of the concrete mixing plant provided by the utility model;

FIG. 4 is a schematic structural view of part A in FIG. 2 of an aggregate screening device of a concrete mixing plant according to the present invention;

FIG. 5 is a schematic structural view of a part B in FIG. 2 of an aggregate screening device of a concrete mixing plant according to the present invention;

FIG. 6 is a schematic structural view of a portion C in FIG. 3 of the aggregate screening device of the concrete mixing plant according to the present invention.

In the figure: 1. a housing; 2. a feed hopper; 3. a first screening drum; 4. a motor; 5. a connecting pipe; 6. a second screening drum; 7. a screw propulsion paddle; 8. raising the plate; 9. a fine filter screen; 10. coarse filtration; 11. a feeding plate; 12. a tension spring; 13. a discharge pipe; 14. a bulk aggregate storage bin; 15. a splitter plate; 16. a first sealing plate; 17. a suction plate; 18. a suction fan; 19. a filter box; 20. a dust filter plate; 21. a sound-deadening pad; 22. a second sealing plate; 23. a first magnetic block; 24. a second magnetic block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example 1:

referring to fig. 1 to 6, an aggregate screening device for a concrete mixing plant includes: a housing 1; the first screening cylinder 3 and the second screening cylinder 6 are fixedly connected in the shell 1 from top to bottom in sequence; the feeding funnel 2 is fixedly connected to the shell 1, and the discharge hole is connected with the feed hole of the first screening cylinder 3; the two motors 4 are respectively and fixedly connected to one sides of the shell 1, which are close to the first screening cylinder 3 and the second screening cylinder 6; the spiral propelling paddle 7 is rotationally connected in the first screening cylinder 3 and the second screening cylinder 6, and one end of the spiral propelling paddle is fixedly connected with the output end of the motor 4; the lifting plates 8 are uniformly distributed on the spiral propelling paddle 7; a fine filter screen 9 and a coarse filter screen 10 which are respectively arranged at the bottoms of the first screening cylinder 3 and the second screening cylinder 6; the feeding plate 11 is rotatably connected to one end, close to the discharge port, of the bottoms of the first screening cylinder 3 and the second screening cylinder 6, and the other end of the feeding plate obliquely extends downwards out of the shell 1; two ends of the connecting pipe 5 are respectively connected with the discharge hole of the first screening cylinder 3 and the feed hole of the second screening cylinder 6; and the bulk aggregate storage box 14 is arranged at the lower end of the shell 1 close to the discharge hole of the second screening cylinder 6.

When the device is used, a worker firstly moves the device to a designated working position and then fixes the device to prevent the device from shaking when aggregates are screened to influence the operation of the worker, when the aggregates are required to be screened, the aggregates are continuously conveyed into a first screening barrel 3 through a feeding funnel 2 at the moment, a motor 4 is started while the aggregates are conveyed, the motor 4 can drive a spiral propeller 7 to rotate so as to convey the aggregates to a discharge port successively, the spiral propeller 7 can drive a lifting plate 8 to rotate while the aggregates are conveyed, the lifting plate 8 lifts the aggregates to enable the aggregates with smaller particle size to flow out of the first screening barrel 3 through a fine filter screen 9 and then flow out of a shell 1 through a feeding plate 11 at the lower end of the first screening barrel 3, the aggregates with larger particle size flow into a second screening barrel 6 through a connecting pipe 5, then spiral propulsion oar 7 in rethread second screening section of thick bamboo 6, the board 8 of kicking up carries the kicking up once more to the aggregate, make the aggregate of medium particle diameter flow out second screening section of thick bamboo 6 through coarse strainer 10, then the delivery sheet 11 of rethread second screening section of thick bamboo 6 lower extreme flows out casing 1, carry out the multi-stage screening back to the aggregate this moment, the rest just has large granule aggregate, large granule aggregate just can drop into in the bold aggregate storage tank 14 through the discharge gate of second screening section of thick bamboo 6 and store, through the interpolation aggregate that lasts in to feed hopper 2, can make that the device lasts sieve the aggregate, need not stop the device again and add the aggregate, the effectual continuation that has improved the device when carrying out the screening, thereby greatly increased screening efficiency, the practicality is higher.

Example 2:

referring to fig. 1 to 4, an aggregate screening device of a concrete mixing plant is basically the same as that of the embodiment 1, and further comprises: the upper end of the shell 1 is provided with a suction fan 18, an air suction pipe of the suction fan 18 extends into the shell 1 and is fixedly connected with an air suction disc 17, a plurality of air suction openings are uniformly distributed at the bottom of the air suction disc 17, the shell 1 is fixedly connected with a filter box 19, an air inlet of the filter box 19 is connected with an air outlet of the suction fan 18, a dust filter plate 20 is arranged in the filter box 19, when aggregate is sieved, a worker starts the suction fan 18 at the moment, so that the suction fan 18 absorbs dust generated in the sieving process of the shell 1 through the air suction disc 17 and sucks the dust into the filter box 19, and the dust filter plate 20 is used for filtering the dust, thereby preventing the dust generated in the sieving process from diffusing into the outside air, not only ensuring the health of the worker, but also ensuring the air quality and playing a good environmental protection effect;

two groups of dust filter plates 20 are arranged in the filter box 19, the dust filter plates 20 are connected with the filter box 19 in a sliding mode, the two groups of dust filter plates 20 are arranged, the dust filter plates 20 are connected in the filter box 19 in a sliding mode, when the filtering effect of the dust filter plates 20 is poor and the dust filter plates 20 need to be cleaned and replaced, workers can directly pull the dust filter plates out of the filter box 19 to clean and replace the dust filter plates, the disassembling and assembling efficiency of the workers is improved, and the practicability of the device is effectively improved;

casing 1 rotates near one side lower extreme of bold aggregate bin 14 and is connected with first closing plate 16, rotates through the torsional spring in the feed hopper 2 and is connected with second closing plate 22, through the setting of first closing plate 16, second closing plate 22, when screening the aggregate, can seal the discharge gate of feed hopper 2, casing 1 bottom, prevents that the raise dust from floating out and causing the influence to the environment, the effectual feature of environmental protection that has improved the device.

Example 3:

referring to fig. 1 to 6, an aggregate screening device of a concrete mixing plant is basically the same as that of the embodiment 1, and further comprises: the inner walls of the first screening barrel 3 and the second screening barrel 6 are fixedly connected with the silencing pads 21, and the silencing pads 21 are fixedly connected on the inner walls of the first screening barrel 3 and the second screening barrel 6, so that when the aggregate is lifted by the lifting plate 8, the sound emitted by the aggregate and the barrel wall can be absorbed, the sound of the device in operation can be reduced, the noise reduction treatment is performed on the device, and a comfortable working environment is provided for workers;

the feeding plate 11 is provided with the material guiding grooves, the aggregate can be limited by the material guiding grooves arranged on the feeding plate 11, the aggregate is prevented from leaving the feeding plate 11 towards two sides under the vibration effect, the loss phenomenon of the aggregate is avoided, and the practicability of the device is effectively improved;

two feed plates 11 keep away from first screening section of thick bamboo 3, the equal fixedly connected with expanding spring 12 of one end of second screening section of thick bamboo 6, expanding spring 12's the other end and 1 fixed connection of casing, setting through expanding spring 12, when the device carries out the during operation, can drive feed plate 11 and vibrate, just can increase the range of vibration under expanding spring 12's effect when feed plate 11 vibrates, thereby make the aggregate on the feed plate 11 flow out fast, improve the efficiency that the aggregate was carried.

Example 4:

referring to fig. 1 and 3, an aggregate screening device of a concrete mixing plant is basically the same as that in the embodiment 1, and further comprises the following components: fixedly connected with flow distribution plate 15 in bold aggregate bin 14, flow distribution plate 15's both sides downward sloping gradually, pipe 13 is arranged to the fixedly connected with of discharge gate department of second screening section of thick bamboo 6, the discharge gate setting of arranging pipe 13 is located directly over bold aggregate bin 14 intermediate position, after bold aggregate flows into bold aggregate bin 14 through arranging pipe 13, the aggregate just can be even both sides to bold aggregate bin 14 under flow distribution plate 15's effect and remove, thereby make the distribution aggregate that can be even in bold aggregate bin 14, the effectual storage capacity that improves bold aggregate bin 14.

Example 5:

referring to fig. 1, 3 and 6, an aggregate screening device of a concrete mixing plant is basically the same as that of the embodiment 2, and further comprises the following components: the bottom of the large aggregate storage box 14 is rotatably connected with a moving wheel, the bottom of the shell 1 is provided with a slide rail, the moving wheel rolls in the slide rail, and the moving wheel is arranged at the bottom of the large aggregate storage box 14, so that a worker can conveniently move the large aggregate storage box 14 out of the shell 1 after the large aggregate storage box 14 is fully collected, the labor capacity of the worker is effectively reduced, and convenience is brought to the worker;

the one end fixedly connected with first magnetic path 23 that first closing plate 16 was kept away from to bold aggregate storage box 14, casing 1 is close to the inboard fixed connection second magnetic path 24 of first magnetic path 23, first magnetic path 23 attracts mutually with second magnetic path 24, through first magnetic path 23, the setting of second magnetic path 24, when sifting the aggregate, can fix bold aggregate storage box 14, prevent that bold aggregate storage box 14 from taking place to rock because of the vibration, the effectual stability that improves bold aggregate storage box 14.

It should be noted that in this patent application, the electrical components are all connected to an external master controller and a 220V mains point, and the master controller may be a conventional known device controlled by a computer, and it should be noted that the motor 4 in the above embodiment may be a forward and reverse rotation motor of model M5140-002, but is not limited thereto.

According to the utility model, through the arrangement of the fine filter screen 9 and the coarse filter screen 10, the aggregate can be subjected to multi-stage screening, so that the aggregates with different particle sizes can be screened, different use requirements are met, the practicability is high, through the arrangement of the motor 4, the spiral propelling paddle 7 and the lifting plate 8, the aggregates can be movably screened and lifted at the same time, the fine filter screen 9 and the coarse filter screen 10 are prevented from being blocked by the aggregates, the screening efficiency of the device on the aggregates is effectively improved, meanwhile, the device can continuously add and screen the aggregates without stopping the machine, the continuity of the device in screening is effectively improved, the screening efficiency is greatly improved, the practicability is high, and the device is suitable for popularization and use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a concrete mixing plant aggregate screening plant which characterized in that includes:

a housing (1);

the first screening cylinder (3) and the second screening cylinder (6) are fixedly connected in the shell (1) from top to bottom in sequence;

the feeding hopper (2) is fixedly connected to the shell (1), and a discharge hole is connected with a feed hole of the first screening cylinder (3);

the two motors (4) are respectively and fixedly connected to one sides, close to the first screening cylinder (3) and the second screening cylinder (6), of the shell (1);

the spiral propelling paddle (7) is rotatably connected in the first screening cylinder (3) and the second screening cylinder (6), and one end of the spiral propelling paddle is fixedly connected with the output end of the motor (4);

the lifting plates (8) are uniformly distributed on the spiral propelling paddle (7);

the fine filter screen (9) and the coarse filter screen (10) are respectively arranged at the bottoms of the first screening cylinder (3) and the second screening cylinder (6);

the feeding plate (11) is rotatably connected to one end, close to the discharge port, of the bottoms of the first screening cylinder (3) and the second screening cylinder (6), and the other end of the feeding plate obliquely extends downwards out of the shell (1);

the two ends of the connecting pipe (5) are respectively connected with the discharge hole of the first screening cylinder (3) and the feed hole of the second screening cylinder (6);

and the bulk aggregate storage box (14) is arranged at the lower end of the shell (1) close to the discharge hole of the second screening barrel (6).

2. The aggregate screening device for the concrete mixing plant according to claim 1, characterized in that a suction fan (18) is installed at the upper end of the shell (1), an air suction pipe of the suction fan (18) extends into the shell (1) and is fixedly connected with an air suction disc (17), a plurality of air suction openings are uniformly distributed at the bottom of the air suction disc (17), a filter box (19) is fixedly connected to the shell (1), an air inlet of the filter box (19) is connected with an air outlet of the suction fan (18), and a dust filtering plate (20) is installed in the filter box (19).

3. A concrete mixing plant aggregate screening plant according to claim 2, characterized in that two sets of dust filter plates (20) are arranged in the filter box (19), and the dust filter plates (20) are connected with the filter box (19) in a sliding manner.

4. The aggregate screening device of the concrete mixing plant according to claim 2, characterized in that a first sealing plate (16) is rotatably connected to the lower end of one side of the shell (1) close to the bulk aggregate storage tank (14), and a second sealing plate (22) is rotatably connected to the interior of the feeding hopper (2) through a torsion spring.

5. The aggregate screening device of the concrete mixing plant according to claim 1, characterized in that the inner walls of the first screening cylinder (3) and the second screening cylinder (6) are fixedly connected with silencing pads (21).

6. The aggregate screening device of the concrete mixing plant according to claim 1, characterized in that the feeding plate (11) is provided with a material guiding groove.

7. The aggregate screening device of the concrete mixing plant according to claim 1, wherein one ends of the two feeding plates (11) far away from the first screening drum (3) and the second screening drum (6) are fixedly connected with expansion springs (12), and the other ends of the expansion springs (12) are fixedly connected with the shell (1).

8. The aggregate screening device for the concrete mixing plant according to claim 1, wherein a splitter plate (15) is fixedly connected in the large aggregate storage tank (14), two sides of the splitter plate (15) are gradually inclined downwards, a discharge pipe (13) is fixedly connected at a discharge port of the second screening drum (6), and a discharge port of the discharge pipe (13) is arranged right above the middle position of the large aggregate storage tank (14).

9. The aggregate screening device for the concrete mixing plant according to claim 4, wherein the bottom of the large aggregate storage tank (14) is rotatably connected with a moving wheel, the bottom of the shell (1) is provided with a sliding rail, and the moving wheel rolls in the sliding rail.

10. The aggregate screening device of the concrete mixing plant as recited in claim 9, characterized in that one end of the large aggregate storage tank (14) far away from the first sealing plate (16) is fixedly connected with a first magnet (23), the inner side of the shell (1) close to the first magnet (23) is fixedly connected with a second magnet (24), and the first magnet (23) and the second magnet (24) attract each other.

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