Screw conveyor for production of construction waste recycled aggregate

Abstract

The utility model discloses a screw conveyer for producing construction waste recycled aggregate, which relates to the technical field of material conveying equipment and comprises a conveying barrel, a motor is fixedly mounted at one end of the conveying barrel and electrically connected with an external controller through a cable, and a blanking pipe is fixedly mounted at the lower end of the conveying barrel. A feeding pipe is fixedly installed at the upper end of the conveying barrel, a connecting pipe is fixedly installed at the upper end of the feeding pipe, a rotating shaft is movably installed in the conveying barrel, and one end of the rotating shaft is fixedly connected with the output end of the motor. The disturbance mechanism is arranged in the feeding pipe and the connecting pipe, and the disturbance mechanism is composed of a lifting rod, a top cutter, a concave-convex wheel, a mounting base and the like and can be matched with the top cutter and the concave-convex wheel to control the lifting rod to ascend and descend in a reciprocating mode in the feeding pipe and the connecting pipe. Therefore, the lifting rod continuously disturbs and scatters the construction waste recycled aggregate accumulated at the lower end of the stock bin and in the connecting pipe by means of the plurality of top cutters, and blockage of the column feeding pipe or an outlet in the lower end of the stock bin is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying equipment, in particular to a screw conveyor for producing recycled aggregates from construction waste. Background Art

[0002] Screw conveyor is a kind of continuous conveying equipment widely used in the industrial field. Its core component is spiral blades, which rotate around the central axis. The thrust generated by the rotation pushes the material forward along the spiral groove. It is suitable for conveying materials in horizontal or inclined directions, especially for conveying powdery, granular and small block materials.

[0003] When transferring and conveying recycled aggregates from construction waste, screw conveyors are also used because they have good sealing properties and can prevent leakage and scattering of materials during the conveying process. This is particularly important for the conveying of recycled aggregates from construction waste, helps to keep the working environment clean and tidy, and reduces material waste. It can also adapt to the needs of different conveying distances and angles, such as the Chinese utility model patent disclosed by publication number CN208994537U: a screw conveyor for the production of recycled aggregates from construction waste. Although the application uses a hydraulic cylinder to drive the support rod up and down to adjust the height of the screw conveyor body, the screw conveyor conveys recycled aggregates from construction waste through an internal spiral body. Therefore, when recycled aggregates from construction waste enter the screw conveyor through an external silo and a feed hopper, the conveying volume per unit time of the screw conveyor is limited. At the same time, since recycled aggregates are often irregular in shape, have different particle sizes, and may contain large impurities or adhesives, when these materials enter the feed hopper in large quantities, they are prone to accumulation and jamming, resulting in blockage. Utility Model Content

[0004] The utility model aims to provide a screw conveyor for producing recycled aggregate from construction waste, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A screw conveyor for producing recycled aggregate of construction waste, comprising a conveying cylinder body. One end of the conveying cylinder body is fixedly installed with a motor, and the motor is electrically connected to an external controller through a cable. The lower end of the conveying cylinder body is fixedly installed with a feeding pipe, and the upper end of the conveying cylinder body is fixedly installed with a feeding pipe. The upper end of the feeding pipe is fixedly installed with a connecting pipe. A rotating shaft is movably installed in the conveying cylinder body, and one end of the rotating shaft is fixedly connected to the output end of the motor. A spiral conveying blade is fixedly installed on the outer side of the rotating shaft. A disturbing mechanism is arranged in the feeding pipe and the connecting pipe. The disturbing mechanism comprises a lifting rod, a top knife, a cam with concave and convex parts and a mounting seat. The lifting rod is movably installed in the feeding pipe and the connecting pipe through the mounting seat. The top knife is fixedly installed at the upper end of the lifting rod, and the cam with concave and convex parts is fixedly installed on the outer side of the rotating shaft at a position below the feeding pipe.

[0007] As a further optimized scheme of the utility model, a guiding groove is arranged on the outer side of the cam with concave and convex parts, and the guiding groove is in a circulating concave-convex structure. Through the arrangement of the cam with concave and convex parts, the reciprocating lifting of the lifting rod can be controlled by the rotation of the cam with concave and convex parts following the top knife.

[0008] As a further optimized scheme of the utility model, two limiting blocks are fixedly installed in the through hole at the central position of the mounting seat. A connecting flange is arranged on the outer side of the mounting seat. A plurality of connecting rods are fixedly connected between the mounting seat and the connecting flange. The connecting flange is fixedly installed between the feeding pipe and the connecting pipe, and the mounting seat is placed at the central position of the junction of the feeding pipe and the connecting pipe. The mounting seat can provide conditions for the movable installation of the lifting rod, and the axial movement of the lifting rod is restricted by means of the limiting blocks.

[0009] As a further optimized scheme of the utility model, two sliding grooves are arranged on the outer side of the lifting rod. A fixing block is fixedly installed at the upper end of the lifting rod. The lifting rod is inserted and installed in the through hole in the mounting seat, and the two sliding grooves are respectively slidably installed on the corresponding limiting blocks.

[0010] As a further optimized scheme of the utility model, three inserting slots are arranged at the upper end of the fixing block, and a threaded groove is arranged on the fixing block between the three inserting slots.

[0011] As a further optimized scheme of the utility model, inserting blocks are respectively fixedly installed at one ends of the three top knives. The transverse cross section of the inserting block is T-shaped. The inserting block is inserted and installed in the corresponding inserting slot, and a screw is threadedly connected in the threaded groove. The end part of the screw is placed at the upper ends of the three inserting blocks. By means of the liftable lifting rod cooperating with the three top knives, the materials in the bin and the connecting pipe can be loosened to prevent blockage.

[0012] As a further optimized solution of the utility model, a clamp is fixedly installed on the lifting rod located below the mounting seat. A compression spring is sleeved on the lifting rod between the mounting seat and the clamp. And by the acting force of the compression spring, the lower end of the lifting rod abuts against the guiding groove outside the concave and convex cam.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] For the screw conveyor for producing recycled aggregate of construction waste described in the utility model, a disturbing mechanism is arranged in the feeding pipe and the connecting pipe. The disturbing mechanism is composed of components such as a lifting rod, a top knife, a concave and convex cam, and a mounting seat. It can cooperate with the top knife and the concave and convex cam to control the reciprocating lifting of the lifting rod in the feeding pipe and the connecting pipe, so that the lifting rod continuously disturbs and disperses the recycled aggregate of construction waste accumulated at the lower end of the silo and in the connecting pipe by means of a plurality of top knives, preventing the feeding pipe or the outlet at the lower end of the silo from being blocked. Description of the Drawings

[0015] Figure 1 is the schematic diagram of the main structure of the utility model;

[0016] Figure 2 is the sectional view of the conveying cylinder of the utility model;

[0017] Figure 3 is Figure 2 the enlarged view of part A in

[0018] Figure 4 is the schematic diagram of the concave and convex cam structure of the utility model;

[0019] Figure 5 is the schematic diagram of the mounting seat and the connecting flange structure of the utility model;

[0020] Figure 6 is the schematic diagram of the top knife mounting structure of the utility model.

[0021] In the figure: 1, conveying cylinder; 2, motor; 3, blanking pipe; 4, feeding pipe; 5, connecting pipe; 6, disturbing mechanism; 7, lifting rod; 8, top knife; 9, concave and convex cam; 10, mounting seat; 11, rotating shaft; 12, spiral conveying blade; 13, connecting flange; 14, connecting rod; 15, limiting block; 16, guiding groove; 17, sliding groove; 18, fixing block; 19, slot; 20, thread groove; 21, clamp; 22, compression spring; 23, inserting block; 24, silo. Detailed Embodiments

[0022] In order to make the technical means, creative features, achieving purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0023] As shown Figures 1-6 in the figure, a screw conveyor for producing recycled aggregate of construction waste provided by the utility model includes a conveying cylinder body 1. One end of the conveying cylinder body 1 is fixedly installed with a motor 2, and the motor 2 is electrically connected to an external controller through a cable. The lower end of the conveying cylinder body 1 is fixedly installed with a feeding pipe 3, and the upper end of the conveying cylinder body 1 is fixedly installed with a feeding pipe 4. The upper end of the feeding pipe 4 is fixedly installed with a connecting pipe 5. A rotating shaft 11 is movably installed in the conveying cylinder body 1. One end of the rotating shaft 11 is fixedly connected to the output end of the motor 2. A spiral conveying blade 12 is fixedly installed on the outer side of the rotating shaft 11. A disturbing mechanism 6 is arranged in the feeding pipe 4 and the connecting pipe 5. The disturbing mechanism 6 includes a lifting rod 7, a top knife 8, a cam 9 and a mounting seat 10. The lifting rod 7 is movably installed in the feeding pipe 4 and the connecting pipe 5 through the mounting seat 10. The top knife 8 is fixedly installed at the upper end of the lifting rod 7, and the cam 9 is fixedly installed on the outer side of the rotating shaft 11 at a position below the feeding pipe 4.

[0024] As shown Figure 4 in the figure, a guiding groove 16 is formed on the outer side of the cam 9, and the guiding groove 16 has a cyclic concave-convex structure. Through the arrangement of the cam 9, the cam 9 can follow the rotation of the top knife 8 to control the reciprocating lifting of the lifting rod 7;

[0025] As shown Figure 3 and Figure 5 in the figure, two limiting blocks 15 are fixedly installed in the through hole at the central position of the mounting seat 10. A connecting flange 13 is arranged on the outer side of the mounting seat 10. A plurality of connecting rods 14 are fixedly connected between the mounting seat 10 and the connecting flange 13. The connecting flange 13 is fixedly installed between the feeding pipe 4 and the connecting pipe 5, and the mounting seat 10 is placed at the central position of the junction of the feeding pipe 4 and the connecting pipe 5. The mounting seat 10 can provide conditions for the movable installation of the lifting rod 7, and the axial movement of the lifting rod 7 is restricted by means of the limiting blocks 15;

[0026] As shown Figures 3-6As shown, two sliding grooves 17 are formed on the outer side of the lifting rod 7. A fixing block 18 is fixedly installed at the upper end of the lifting rod 7. The lifting rod 7 is inserted into a through hole in the mounting seat 10, and the two sliding grooves 17 are respectively slidably installed on the corresponding limiting blocks 15. Three slot holes 19 are formed at the upper end of the fixing block 18, and a screw groove 20 is formed in the fixing block 18 between the three slot holes 19. One ends of the three top knives 8 are respectively fixedly installed with inserting blocks 23. The transverse section of the inserting block 23 is T-shaped. The inserting block 23 is inserted into the corresponding slot hole 19, and a screw is threadedly connected in the screw groove 20. The end of the screw is placed on the upper ends of the three inserting blocks 23. By means of the liftable lifting rod 7 cooperating with the three top knives 8, the materials in the silo 24 and the connecting pipe 5 can be loosened to prevent blockage. A clamp 21 is fixedly installed on the lifting rod 7 at a position below the mounting seat 10. A compression spring 22 is sleeved on the lifting rod 7 between the mounting seat 10 and the clamp 21. With the acting force of the compression spring 22, the lower end of the lifting rod 7 abuts against the guiding groove 16 on the outer side of the cam 9.

[0027] It should be noted that the present utility model is a screw conveyor for producing recycled aggregate of construction waste. When the motor 2 drives the rotating shaft 11 to rotate, the rotating shaft 11 synchronously drives the spiral conveying blades 12 and the cam 9 to rotate. Then, the cam 9 reciprocally moves the lifting rod 7 up and down by means of the guiding groove 16 on the outer side and the compression spring 22. Then, the lifting rod 7 synchronously drives the multiple top knives 8 at the upper end to move up and down. Thus, after the recycled aggregate of construction waste in the silo 24 enters the connecting pipe 5 and the feeding pipe 4, the reciprocally moving top knives 8 can continuously disturb and disperse the recycled aggregate of construction waste accumulated at the lower outlet position of the connecting pipe 5 and the silo 24, so as to prevent the recycled aggregate of construction waste from accumulating in the lower outlet of the silo 24 and the connecting pipe 5 due to different structural sizes, and thus avoid the recycled aggregate of construction waste being fed from blocking the lower outlet of the silo 24 and the connecting pipe 5.

[0028] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A screw conveyor for producing recycled aggregate of construction waste, characterized in that: It includes a conveying cylinder body (1). One end of the conveying cylinder body (1) is fixedly installed with a motor (2). The motor (2) is electrically connected to an external controller through a cable. The lower end of the conveying cylinder body (1) is fixedly installed with a blanking pipe (3). The upper end of the conveying cylinder body (1) is fixedly installed with a feeding pipe (4). The upper end of the feeding pipe (4) is fixedly installed with a connecting pipe (5). A rotating shaft (11) is movably installed in the conveying cylinder body (1). One end of the rotating shaft (11) is fixedly connected to the output end of the motor (2). A spiral conveying blade (12) is fixedly installed on the outer side of the rotating shaft (11). A disturbing mechanism (6) is arranged in the feeding pipe (4) and the connecting pipe (5). The disturbing mechanism (6) includes a lifting rod (7), a top knife (8), a cam (9) and a mounting seat (10). The lifting rod (7) is movably installed in the feeding pipe (4) and the connecting pipe (5) through the mounting seat (10). The top knife (8) is fixedly installed at the upper end of the lifting rod (7), and the cam (9) is fixedly installed on the outer side of the rotating shaft (11) at a position below the feeding pipe (4).

2. The screw conveyor for producing recycled aggregate of construction waste according to claim 1, characterized in that: A guiding groove (16) is formed on the outer side of the cam (9), and the guiding groove (16) has a cyclic concave-convex structure.

3. The screw conveyor for producing recycled aggregate of construction waste according to claim 2, characterized in that: Two limiting blocks (15) are fixedly installed in the through hole at the central position of the mounting seat (10). A connecting flange (13) is arranged on the outer side of the mounting seat (10). A plurality of connecting rods (14) are fixedly connected between the mounting seat (10) and the connecting flange (13). The connecting flange (13) is fixedly installed between the feeding pipe (4) and the connecting pipe (5), and the mounting seat (10) is located at the central position of the junction of the feeding pipe (4) and the connecting pipe (5).

4. The screw conveyor for producing recycled aggregate of construction waste according to claim 3, wherein: Two sliding grooves (17) are formed on the outer side of the lifting rod (7). A fixing block (18) is fixedly installed at the upper end of the lifting rod (7). The lifting rod (7) is inserted into the through hole in the mounting seat (10), and the two sliding grooves (17) are respectively slidably installed on the corresponding limiting blocks (15).

5. The screw conveyor for producing recycled aggregate of construction waste according to claim 4, wherein: Three inserting slots (19) are formed at the upper end of the fixing block (18). A screw groove (20) is formed in the fixing block (18) between the three inserting slots (19).

6. The screw conveyor for producing recycled aggregate of construction waste according to claim 5, wherein: One end of each of the three top knives (8) is fixedly installed with an inserting block (23). The transverse cross section of the inserting block (23) is T-shaped. The inserting block (23) is inserted into the corresponding inserting slot (19), and a screw is threadedly connected in the screw groove (20). The end of the screw is located above the three inserting blocks (23).

7. A screw conveyor for producing recycled aggregate of construction waste according to claim 2, characterized in that: A clamp (21) is fixedly installed on the lifting rod (7) at a position below the mounting seat (10). A compression spring (22) is sleeved on the lifting rod (7) between the mounting seat (10) and the clamp (21). With the acting force of the compression spring (22), the lower end of the lifting rod (7) abuts against the guiding groove (16) on the outer side of the cam (9).

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