CN216574186U

CN216574186U - Building rubbish recycled aggregate light dust desorption device

Info

Publication number: CN216574186U
Application number: CN202122792706.4U
Authority: CN
Inventors: 王尧; 尹静; 宋美; 张加巨; 张旭辉; 王建义
Original assignee: Yanhe Tujia Autonomous County Township Construction Commodity Concrete Co ltd; Guizhou Institute Of Building Materials Scientific Research And Design Co ltd
Current assignee: Yanhe Tujia Autonomous County Township Construction Commodity Concrete Co ltd; Guizhou Institute Of Building Materials Scientific Research And Design Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-05-24
Anticipated expiration: 2031-11-16

Abstract

The utility model relates to the technical field of dust screening, in particular to a light dust removing device for construction waste recycled aggregate, which realizes the screening of large particles and fine particles by the action of a screening component for the construction waste recycled aggregate, utilizes the falling process of a screen base material falling from the screening component, utilizes an air supply component to supply air to blow out light components doped in the recycled aggregate, realizes the blowing of the light dust part into a powder removing bin, and directly discharges the light dust part through a powder discharging bin, and the aggregate components directly fall into a bone hopper after entering and are discharged through an aggregate discharging outlet, thereby realizing the removal of the light dust components in the construction waste recycled aggregate, improving the quality of the recycled aggregate.

Description

Building rubbish recycled aggregate light dust desorption device

Technical Field

The utility model relates to the technical field of dust screening, in particular to a device for removing light dust from construction waste recycled aggregate.

Background

Along with the gradual increase of the cost of the building materials, the harm of the solid wastes of the building wastes to the ecological environment is obvious, and the building wastes are used as the building materials for resource utilization and are focused on building material production enterprises. At present, a great deal of research and popularization are carried out on the production technology of construction waste recycled building materials, so that a great deal of resources such as waste bricks, waste stones, waste concrete and the like are utilized, and the production and preparation of recycled aggregates are realized; however, the conventional construction waste contains not only waste stone, waste brick and waste concrete, but also wood, dust, soil and the like, so that after the construction waste is sent into a crusher to be crushed, a large amount of light dust is doped in the obtained aggregate, which results in poor quality of the recycled aggregate, and therefore, the construction waste recycled aggregate needs to be subjected to light dust removal treatment.

The researchers combine the research on the relevant technologies of production and application of the construction waste recycled aggregate and the related technical situation of traditional construction waste crushing post-treatment, and combine dust removal and screening, so that when large particles in the recycled aggregate are discharged or classified and classified according to particle size, blowing-out treatment of light dust in the recycled aggregate obtained by screening is realized, and a novel device is provided for post-treatment of preparing the recycled aggregate by crushing the construction waste.

SUMMERY OF THE UTILITY MODEL

The utility model provides a device for removing light dust from construction waste recycled aggregate, which combines a screening component with a blowing component, realizes the blowing of light dust components when the construction waste is broken and screened, and improves the quality of the recycled aggregate.

The method is realized by the following technical scheme:

the construction waste recycled aggregate light dust removal device comprises a support component, a screening component and a blowing component, wherein the support component is used for supporting the screening component and the blowing component; the screening assembly comprises a screening groove and a screen arranged at the bottom of the screening groove; the blowing-out component comprises an outer cylinder and an inner cylinder, a powder removing bin is formed between the outer cylinder and the inner cylinder, and a powder discharging bin inclined towards the end of the outer cylinder is arranged at the bottom of the powder removing bin; a through hole is formed in the wall of the inner barrel, and an air supply assembly is arranged at the center of the inner barrel; an aggregate bin is formed between the inner wall of the inner barrel and the outer wall of the air supply assembly, and the air supply assembly can blow air into the aggregate bin; the bottom of the aggregate bin is provided with an aggregate hopper, and the bottom of the aggregate hopper is provided with an aggregate discharge port; the screen cloth center is equipped with power component, just power component with the air supply subassembly is connected.

The construction waste recycled aggregate is subjected to the action of the screening component, large particles and fine particles are screened, the falling process of the bed charge dropped from the screening component is recycled, the air supply component is used for supplying air to blow out light components doped in the recycled aggregate, the light dust is blown into the powder removing bin, the light components are directly discharged through the powder discharging bin, the aggregate components directly fall into the aggregate hopper after falling and are discharged through the aggregate discharge outlet, the removal of the light dust components in the construction waste recycled aggregate is realized, the quality of the recycled aggregate is improved, the equipment structure is simple, and the use is convenient.

In the utility model, the power assembly comprises a fixed column which is arranged in the center of the screen and is hollow inside; a bearing is arranged in the fixed column, a rotating shaft is arranged in the bearing, and a motor is arranged at the top end of the rotating shaft; the bottom end of the rotating shaft is connected with the air supply assembly. The screen cloth is internally provided with a scraper which can scrape the surface of the screen cloth, and the scraper is arranged on the rotating shaft between the motor and the fixed column. The construction waste recycled aggregate on the surface of the screen is scraped, so that the screening efficiency is higher.

In the utility model, the air supply assembly comprises an air supply barrel, the top of the air supply barrel is closed, the bottom of the air supply barrel is provided with a fixed net, and the center of the fixed net is fixedly provided with a bearing; a bearing is arranged in the center of the top of the air supply barrel, and the rotating shaft extends into the bottom of the air supply barrel from the top of the air supply barrel through the bearing; the bottom end of the air supply cylinder extends out of the bottom of the inner cylinder; the wall of the air supply barrel in the inner barrel is provided with an air supply hole communicated with the inside and the outside of the air supply barrel; and an exhaust plate capable of exhausting air flow from the air supply hole and an exhaust plate capable of sucking air flow from the bottom of the air supply cylinder are sequentially arranged on the rotating shaft in the air supply cylinder from top to bottom. The device has the advantages that air is sucked from the bottom of the device and then blown into the inner cylinder transversely, so that light dust doped in aggregate falling into the inner cylinder is blown into the powder removing bin, and the light dust is removed.

In order to avoid aggregate screened out by the screen mesh from entering the powder removing bin, preferably, the diameter of the screen mesh capable of being screened is less than or equal to that of the inner cylinder, and the edge of the screen mesh is positioned on one side of the inner wall of the inner cylinder.

In order to classify and classify the construction waste recycled aggregate according to the particle size, preferably, the screen is disc-shaped and is divided into four parts along the radial direction, and the diameters of the screen holes on the screen of each part are arranged in a mode of gradually increasing along the counterclockwise direction; and a construction waste recycled aggregate inlet is arranged right above the screen with the smallest screen hole diameter. And a partition plate is arranged between the inner wall of the inner barrel and the outer wall of the air supply assembly. And the partition plate divides the inner cylinder into aggregate bins corresponding to the four parts divided on the screen mesh. The construction waste recycled aggregate can be separated according to different particle sizes.

In order to enhance the stability, it is preferable that a reinforcing rib is provided between the outer cylinder and the inner cylinder.

In order to enable the construction waste recycled aggregate in the screen to slide toward the center of the screen and improve the screening efficiency, it is preferable that an inclined plate inclined from the top end of the screening groove toward the edge of the screen is provided in the screening groove. More preferably, the inclined plate has an inclination angle of 45 °.

In the utility model, the support component comprises a support table connected to the outer wall of the outer cylinder, the bottom of the support table is provided with an upright post, the upper surface of the support table is provided with a vibrator and a first fixed rod, and the first fixed rod is used for supporting the power component; a vibrating spring is arranged on the vibrator, a second fixed rod is arranged on the vibrating spring, and the second fixed rod is fixedly connected with the outer wall of the screening groove; and the power component is movably connected with the screen. Realized screening subassembly, blow off the support connection of subassembly, the stability of guarantee device installation use also can vibrate the screen cloth simultaneously and sieve, improve the efficiency of sieving.

For enhancing the stability, the bottom end of the upright post is preferably provided with a chassis.

Compared with the prior art, the utility model has the technical effects that:

the utility model has simple structure and convenient use, and can remove the light dust doped in the construction waste recycled aggregate when the construction waste recycled aggregate is screened out in a particle grading way, thereby improving the manufacturing efficiency of the construction waste recycled aggregate.

In an improved embodiment, the synchronous operation of particle classification and light dust removal on the construction waste recycled aggregate can be realized, the efficiency of improving the quality of the construction waste recycled aggregate is improved, and meanwhile, the dust pollution caused by secondary treatment of the recycled aggregate is avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Figure 2 is a schematic top view of a screen assembly.

Fig. 3 is a schematic top view of the stripping assembly.

Fig. 4 is a schematic bottom view of the stripping assembly.

Fig. 5 is a bottom view of the structure of fig. 1A-a.

1-chassis 2-upright post 3-support table 4-vibrator 5-vibrating spring 6-first fixed rod 7-second fixed rod 8-motor 9-screening groove 10-inclined plate 11-scraper 12-fixed column 13-bearing 14-screen 15-outer cylinder 16-inner cylinder 17-powder removal bin 18-through hole 19-powder discharge bin 20-aggregate bin 21-aggregate hopper 22-aggregate discharge outlet 23-blast hole 24-blast plate 25-air draft plate 26-fixed net 27-rotating shaft 28-reinforcing rib 29-partition plate 30-blast cylinder 31-airflow cavity.

Detailed Description

The technical solution of the present invention is further defined in the following description with reference to the accompanying drawings and the specific embodiments, but the scope of the claimed invention is not limited to the description.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, in this embodiment, the construction waste recycled aggregate light dust removal device comprises a support assembly, a screen assembly and a blowing-out assembly, wherein the support assembly is used for supporting the screen assembly and the blowing-out assembly; the screening assembly comprises a screening groove 9 and a screen 14 arranged at the bottom of the screening groove 9; the blowing-out component comprises an outer cylinder 15 and an inner cylinder 16, a powder removing bin 17 is formed between the outer cylinder 15 and the inner cylinder 16, and a powder discharging bin 19 inclined towards the end of the outer cylinder 15 is arranged at the bottom of the powder removing bin 17; a through hole 18 is formed in the wall of the inner barrel 16, and an air supply assembly is arranged in the center of the inner barrel 16; an aggregate bin 20 is formed between the inner wall of the inner barrel 16 and the outer wall of the air supply assembly, and the air supply assembly can blow air into the aggregate bin 20; the bottom of the aggregate bin 20 is provided with an aggregate hopper 21, and the bottom of the aggregate hopper 21 is provided with an aggregate discharge port 22; the center of the screen 14 is provided with a power assembly, and the power assembly is connected with the air supply assembly. The diameter of the screen 14 capable of being screened is not more than that of the inner cylinder 16, and the edge of the screen 14 is positioned on one side of the inner wall of the inner cylinder 16.

When in use: the construction waste recycled aggregate is sent into the screening groove 9, falls into the inner cylinder 16 after passing through the screen 14, falls along the aggregate bin 20, and simultaneously the power component drives the air supply component to work, so that the air supply component provides transverse air flow to the inner cylinder 16, the air flow enters the powder removing bin 17 from the through hole 18, and then the light dust doped in the recycled aggregate is blown into the powder removing bin 17, and is downwards settled under the blocking effect of the outer cylinder 15, and then is discharged from the powder discharging bin 19, so that the removal of the light dust doped in the aggregate is realized, and the removal efficiency is improved; and the aggregate enters the aggregate hopper 21 from the aggregate bin 20, is discharged through the aggregate discharge outlet, is packaged and bagged, and then the quality improvement of the recycled aggregate of the construction waste can be completed. The device has simple structure and convenient treatment.

As shown in fig. 1-4, in this embodiment, the power assembly includes a stationary column 12 disposed in the center of the screen 14 and having a hollow interior; a bearing 13 is arranged in the fixed column 12, a rotating shaft 27 is arranged in the bearing 13, and a motor 8 is arranged at the top end of the rotating shaft 27; the bottom end of the rotating shaft 27 is connected with the air supply assembly. A scraper 11 capable of scraping the surface of the screen 14 is arranged in the screen 14, and the scraper 11 is arranged on the rotating shaft 27 between the motor 8 and the fixed column 12. When the rotating shaft 27 rotates, the air supply assembly can be driven to work, meanwhile, the scraper plate 11 is driven to rotate, the construction waste recycled aggregate in the screen 14 is scraped, and the sieving efficiency is improved.

As shown in fig. 1 to 5, in this embodiment, the air supply assembly includes an air supply cylinder 30, the top of the air supply cylinder 30 is closed, a fixing net 26 is arranged at the bottom of the air supply cylinder 30, and a bearing 13 is fixedly arranged at the center of the fixing net 26; a bearing 13 is arranged at the center of the top of the air supply barrel 30, and the rotating shaft 27 extends into the bottom of the air supply barrel 30 from the top of the air supply barrel 30 through the bearing 13; the bottom end of the air supply barrel 30 extends out of the bottom of the inner barrel 16; the air supply cylinder 30 is provided with an air supply hole 23 which is positioned on the wall in the inner cylinder 16 and is communicated with the inside and the outside of the air supply cylinder 30; an exhaust plate 24 capable of exhausting the air flow from the air supply hole 23 and an exhaust plate 25 capable of sucking the air flow from the bottom of the air supply tube 30 are provided in this order from the top to the bottom on the rotary shaft 27 in the air supply tube 30. When the motor 8 drives the rotating shaft 27 to rotate, the air exhaust plate 24 positioned in the air supply cylinder 30 conveys transverse air flow into the inner cylinder 16, meanwhile, the regenerated aggregate sieved and dropped by the screen 14 is downward vertically, so that light dust doped in the regenerated aggregate is blown into the powder removing bin 17 by the transverse air flow and is prevented by the outer cylinder 15 to be settled, and then is discharged from the powder exhaust bin 19, while the regenerated aggregate with better quality continuously drops downward vertically, enters the aggregate hopper 21 from the aggregate bin 20, is discharged through the aggregate discharge outlet 22 and is used for packaging or other applications, and the quality of the regenerated aggregate is greatly improved; in the utility model, the air draft plate 25 is arranged on the rotating shaft 27, the air exhaust plate 24 is arranged on the rotating shaft 27, the air draft plate 25 is positioned at the inlet at the bottom end of the air supply cylinder 30, the air flow is continuously sucked into the air supply cylinder 30, the air flow entering the air supply cylinder is continuously exhausted by the air exhaust plate 24 and enters the inner cylinder 16 to perform a transverse action, an air flow cavity 31 for forming air flow flowing in the air supply cylinder 30 is formed, the processes of sucking the air flow from the bottom of the device and transversely exhausting the air flow are realized, and the light dust in the vertical falling process is transversely blown out of the powder removing bin 17 to be removed.

Besides, in the research process, the researchers also fully consider how to sieve the construction waste recycled aggregate to remove the light dust, and simultaneously realize the separation operation of different recycled aggregate particle sizes, and further make the following improvements to the device:

as shown in fig. 2 to 4, in this embodiment, the screen 14 is in a shape of a disk and is divided into four parts in a radial direction, and the diameters of the screen holes on the screen 14 of each part are arranged in a manner of increasing in a counterclockwise direction; and a construction waste recycled aggregate inlet is arranged right above the screen 14 with the smallest screen hole diameter. A partition plate 29 is arranged between the inner wall of the inner barrel 16 and the outer wall of the air supply assembly. And the partition 29 divides the inside of the inner cylinder 16 into the aggregate bins 20 corresponding to the four divided portions of the mesh 14. And the scraper 11 rotates counterclockwise. When the construction waste recycled aggregate is fed from the position right above the screen 14 with the smallest screen hole diameter, the recycled aggregate with the smaller screen hole diameter and the light dust are screened for the first time, and under the action of the scraper 11, the recycled aggregate on the screen with the smaller screen hole diameter is scraped to the screen part with the slightly larger screen hole diameter, so that secondary screening is realized until the recycled aggregate is scraped to the position with the largest screen hole diameter; the recycled aggregate is classified into four different sieve pore diameters according to the sieve 14, so that the recycled aggregate is classified into four particles with different particle sizes; and when the recycled aggregate screened from four different screen hole diameters falls vertically, the light dust part is blown out under the action of the exhaust plate 24, the synchronous operation of aggregate particle size classification and light dust removal is realized, and the processing efficiency of the recycled aggregate is improved.

As shown in fig. 3, in the utility model, a reinforcing rib 28 is provided between the outer cylinder 15 and the inner cylinder 16; can realize stable connection, ensure the stability of device.

As shown in fig. 1, in this embodiment, an inclined plate 10 inclined from the top end of the sifting groove 9 to the edge of the screen 14 is provided in the sifting groove 9. The aggregate can form acting force which tends to slide towards the center of the screen, and the screening efficiency of the aggregate is improved. In particular, in some embodiments, the inclined plate 10 is inclined at an angle of 45 °.

As shown in fig. 1, the support assembly adopted in the utility model includes a support table 3 connected to the outer wall of the outer cylinder 15, the bottom of the support table 3 is provided with an upright post 2, the upper surface of the support table 3 is provided with a vibrator 4 and a first fixing rod 6, and the first fixing rod 6 is used for supporting the power assembly 8; a vibration spring 5 is arranged on the vibrator 4, a second fixing rod 7 is arranged on the vibration spring 5, and the second fixing rod 7 is fixedly connected with the outer wall of the screening groove 9; and the power assembly is movably connected with the screen 14. The component structure is used for supporting the screening component and the blowing component and ensuring the overall stability of the device; the researchers who create the utility model can refer to the related technical conception created by the utility model, adopt other supporting component structures, and only need to realize the screening of the screening component and the blowing of the blowing component, and realize the purpose of removing the light dust in the recycled aggregate. In some embodiments, the bottom end of the upright 2 is provided with a chassis 1. The stability is enhanced.

The utility model may be practiced otherwise than as specifically described in the art or by conventional means that are within the ordinary skill of those skilled in the art, such as: the motor 8 can be a motor with a rated voltage of 220V or 380V, and other power devices can be used instead, for example: the mode of connecting the belt pulley with the gasoline engine and the diesel engine, and the like. For another example: the first fixing rod 6 created by the present invention can be removed and the motor 8 is installed right below the blowing tube 30, so that the bottom end of the rotating shaft 27 is connected with the motor 8, thereby simplifying the structure of the device.

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 the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The device for removing the light dust from the recycled aggregate of the construction waste is characterized by comprising a supporting component, a screening component and a blowing-out component, wherein the supporting component is used for supporting the screening component and the blowing-out component; the screening component comprises a screening groove (9) and a screen (14) arranged at the bottom of the screening groove (9); the blowing-out component comprises an outer cylinder (15) and an inner cylinder (16), a powder removing bin (17) is formed between the outer cylinder (15) and the inner cylinder (16), and a powder discharging bin (19) inclined towards the end of the outer cylinder (15) is arranged at the bottom of the powder removing bin (17); a through hole (18) is formed in the wall of the inner barrel (16), and an air supply assembly is arranged in the center of the inner barrel (16); an aggregate bin (20) is formed between the inner wall of the inner barrel (16) and the outer wall of the air supply assembly, and the air supply assembly can blow air into the aggregate bin (20); the bottom of the aggregate bin (20) is provided with an aggregate hopper (21), and the bottom of the aggregate hopper (21) is provided with an aggregate discharge port (22); the center of the screen (14) is provided with a power assembly, and the power assembly is connected with the air supply assembly.

2. The construction waste recycled aggregate light dust removal device as claimed in claim 1, wherein the power assembly comprises a fixed column (12) which is arranged in the center of the screen (14) and is hollow inside; a bearing (13) is arranged in the fixed column (12), a rotating shaft (27) is arranged in the bearing (13), and a motor (8) is arranged at the top end of the rotating shaft (27); the bottom end of the rotating shaft (27) is connected with the air supply assembly.

3. The construction waste recycled aggregate lightweight dust removal device according to claim 2, wherein a scraper (11) capable of scraping the surface of the screen (14) is provided in the screen (14), and the scraper (11) is provided on the rotating shaft (27) between the motor (8) and the fixed column (12).

4. The device for removing the light dust from the construction waste recycled aggregate according to claim 2, wherein the air supply assembly comprises an air supply barrel (30), the top of the air supply barrel (30) is closed, a fixing net (26) is arranged at the bottom of the air supply barrel (30), and a bearing (13) is fixedly arranged at the center of the fixing net (26); a bearing (13) is arranged in the center of the top of the air supply cylinder (30), and the rotating shaft (27) extends into the bottom of the air supply cylinder (30) from the top of the air supply cylinder (30) through the bearing (13); the bottom end of the air supply barrel (30) extends out of the bottom of the inner barrel (16); the wall of the air supply barrel (30) positioned in the inner barrel (16) is provided with an air supply hole (23) for communicating the inside and the outside of the air supply barrel (30); an exhaust plate (24) capable of exhausting air flow from the air supply hole (23) and an exhaust plate (25) capable of sucking air flow from the bottom of the air supply cylinder (30) are sequentially arranged on a rotating shaft (27) positioned in the air supply cylinder (30) from top to bottom.

5. The construction waste recycled aggregate light dust removal device as claimed in claim 3, wherein the screen (14) is disc-shaped and divided into four parts in the radial direction, and the diameter of the screen hole on each part of the screen (14) is gradually increased in the counterclockwise direction; and a construction waste recycled aggregate inlet is arranged right above the screen (14) with the smallest screen hole diameter.

6. The construction waste recycled aggregate light dust removal device as claimed in claim 1, wherein a reinforcing rib (28) is arranged between the outer cylinder (15) and the inner cylinder (16); a partition plate (29) is arranged between the inner wall of the inner barrel (16) and the outer wall of the air supply assembly.

7. The construction waste recycled aggregate lightweight dust removal device according to claim 1, wherein an inclined plate (10) inclined from the top end of the screening groove (9) to the edge of the screen (14) is provided in the screening groove (9).

8. The construction waste recycled aggregate light dust removal device of claim 7, wherein the inclination angle of the inclined plate (10) is 45 °.

9. The device for removing lightweight dust from construction waste recycled aggregate according to claim 1, wherein the supporting component comprises a supporting platform (3) connected to the outer wall of the outer cylinder (15), the bottom of the supporting platform (3) is provided with a column (2), the upper surface of the supporting platform (3) is provided with a vibrator (4) and a first fixing rod (6), and the first fixing rod (6) is used for supporting the power component (8); a vibration spring (5) is arranged on the vibrator (4), a second fixing rod (7) is arranged on the vibration spring (5), and the second fixing rod (7) is fixedly connected with the outer wall of the screening groove (9); and the power component is movably connected with the screen (14).

10. The device for removing the light dust from the recycled aggregate of the construction waste as claimed in claim 9, wherein the bottom end of the upright post (2) is provided with a chassis (1).