Belt conveyor for conveying construction waste

Abstract

The utility model discloses a belt conveyor for conveying construction waste, which belongs to the technical field of conveying equipment and comprises a belt conveyor body, and a screening and removing device is arranged on the belt conveyor body. The screening and removing device comprises a mounting frame fixed to the belt conveyor body and a plurality of roller shaft assemblies mounted on the mounting frame at intervals, and the roller shaft assemblies are arranged above the belt conveyor body. The included angle between the direction in which the roller shaft assemblies are arranged at intervals and the conveying direction of the belt conveyor main body is an acute angle; the roller shaft assembly is rotationally connected with the mounting frame, and friction protrusions are arranged on the roller shaft assembly. The belt conveyor provided by the utility model can automatically select and clear large materials remaining on the belt conveyor in the feeding process, and avoids the problems of material blockage and unsmooth operation.

Description

Technical Field

[0001] The utility model relates to a belt conveyor for conveying construction waste, belonging to the technical field of conveying equipment. Background Art

[0002] In the construction waste treatment industry, construction waste needs to be sent to the next level for processing through a belt conveyor. However, due to various factors, large pieces of material that have not been completely screened by the previous level may remain on the belt conveyor that feeds the material to the next level, causing the next level equipment to be overloaded or damaged.

[0003] To avoid this, the current approach is to have workers on the side of the conveyor identify and remove any large pieces of material remaining on it. However, this approach requires significant manpower and is costly. Furthermore, workers must constantly visually identify and remove large pieces of material, which is labor-intensive.

[0004] In addition, there are also some belt conveyors equipped with screening mechanisms. However, when using this type of belt conveyor to transport construction waste, due to the diversity of construction waste, especially some plastic films, irregular blocks and some long strips of material when transporting (screening link), it is easy to cause material jamming, resulting in frequent manual intervention, thus affecting work efficiency. Utility Model Content

[0005] The utility model aims to provide a belt conveyor for conveying construction waste, so as to solve the problems of material jamming and poor operation during the construction waste conveying process (screening link), thereby avoiding manual intervention as much as possible and improving work efficiency.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A belt conveyor for conveying construction waste, comprising a belt conveyor body, wherein the belt conveyor body is provided with a screening and clearing device; the screening and clearing device comprises a mounting frame fixed to the belt conveyor body and a plurality of roller assemblies mounted on the mounting frame at intervals, the roller assemblies being arranged above the belt conveyor body; the angle between the direction in which the plurality of roller assemblies are arranged at intervals and the conveying direction of the belt conveyor body is acute;

[0008] The roller assembly is rotatably connected to the mounting frame, and a friction protrusion is provided on the roller assembly.

[0009] In operation, in the process that the belt conveyor transports the material screened by the previous stage to the next stage, the fine material can continue to be transported to the next stage through the gap between the roller shaft assemblies, and the large block material remaining in the previous stage is blocked by the roller shaft assemblies, that is, is automatically selected by the screening and removing device, and since the angle between the direction in which the roller shaft assemblies are arranged at intervals and the conveying direction of the belt conveyor body is an acute angle (that is, the screening and removing device is arranged obliquely), the blocked large block material can automatically roll off the belt conveyor along the oblique direction (that is, the direction in which the roller shaft assemblies are arranged at intervals), that is, is automatically removed by the screening and removing device; in this process, no workers or only a small number of workers need to be arranged to assist in screening and removing.

[0010] Since the roller shaft assembly is provided with the friction protrusions, even if the construction waste falls between the two roller shaft assemblies, the construction waste can be extruded by the pushing force generated by the belt conveying, so that the construction waste is moved to the side direction of the belt conveyor by the friction protrusions, thereby facilitating the large block material to roll off along the direction in which the roller shaft assemblies are arranged, and avoiding material jamming.

[0011] Further, the roller shaft assembly comprises a fixed roller shaft fixed to the mounting frame, a roller sleeve arranged on the fixed roller shaft, and a stopper fixed to the fixed roller shaft and located below the roller sleeve.

[0012] Further, the acute angle ranges from 30° to 60°.

[0013] Further, the distance between the lower end of the roller shaft assembly and the upper surface of the conveying belt of the belt conveyor ranges from 100 mm to 200 mm, which facilitates the material with a size less than 100 mm to be directly conveyed to the next stage equipment by the belt conveyor.

[0014] Further, the mounting frame comprises a support plate fixed to the belt conveyor body and a mounting plate fixed to the support plate, and the roller shaft assemblies are arranged at intervals on the mounting plate.

[0015] Further, the friction protrusions are semispherical protrusions, which can minimize the flexible material (such as plastic film and cloth strip) in the construction waste from being wound on the roller shaft assembly.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The belt conveyor for conveying construction waste can smoothly convey some plastic films, irregular block materials and some long strip materials in the construction waste, solves the problems of material blocking and poor operation in the construction waste conveying process (screening link), and avoids manual intervention as much as possible, and reduces labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional structure schematic diagram of an embodiment of the utility model, and

[0019] Figure 2 is a front view structure schematic diagram of an embodiment of the utility model, and

[0020] Figure 3 is a local structure schematic diagram of an embodiment of the utility model.

[0021] In the drawings

[0022] 1, belt conveyor main body;2, screening and removing device;3, mounting frame;31, support plate;32, mounting plate;4, roller shaft assembly;41, fixed roller shaft;42, roller;43, stopper;44, friction protrusion;5, belt conveyor rack;6, driving motor. DETAILED DESCRIPTION

[0023] The utility model will be further described in detail in combination with the drawings.

[0024] Referring to Figures 1 to 3 , the belt conveyor of the embodiment can be applied to the industry of construction waste treatment, is used for automatically selecting and removing the large block materials remaining on the belt conveyor in the feeding process, and prevents material blocking. The belt conveyor of the embodiment comprises a belt conveyor main body 1 and a screening and removing device 2 fixed on the belt conveyor main body 1.

[0025] The belt conveyor main body 1 comprises a belt conveyor frame 5 for mounting various components, a conveying belt for conveying materials mounted on the belt conveyor frame 5, a driving motor 6 for driving the conveying belt to run back and forth, and the like. The screening and removing device 2 comprises a mounting frame 3 fixed on the belt conveyor main body 1 and a plurality of roller shaft assemblies 4 evenly spaced on the mounting frame 3. The mounting frame 3 is fixed on the belt conveyor frame 5 of the belt conveyor main body 1 and used for mounting the roller shaft assemblies 4. The mounting frame 3 has a "∏" shape or an inverted L shape. The roller shaft assemblies 4 are located above the conveying belt of the belt conveyor main body 1. By spacing the plurality of roller shaft assemblies 4, the materials conveyed on the conveying belt can be automatically screened. That is, only the materials meeting the size requirement can pass through the gaps between the plurality of roller shaft assemblies 4, while the large block materials are blocked by the plurality of roller shaft assemblies 4. By tilting the screening and removing device 2 on the belt conveyor main body 1, that is, by forming an acute angle between the direction in which the plurality of roller shaft assemblies 4 are spaced and the conveying direction of the belt conveyor main body 1, the large block materials blocked on the conveying belt can be automatically removed.

[0026] Referring to Figure 2 The belt conveyor of some embodiments can be tilted (at an angle to the horizontal plane) or arranged horizontally from the front view.

[0027] Referring to Figure 1 From the top view (perpendicular to the conveying direction of the conveying belt), the acute angle formed between the direction in which the plurality of roller shaft assemblies 4 are spaced and the conveying direction of the belt conveyor main body 1 is in the range of 30°-60°, and the angle is preferably 45°. In this way, a guide path for the large block materials to roll obliquely can be formed, facilitating the automatic removal of the large block materials. The roller shaft assemblies 4 are rotatably connected to the mounting frame 3, and the roller shaft assemblies 4 can rotate relative to the mounting frame 3. In this way, when the large block materials pass through the roller shaft assemblies 4, the roller shaft assemblies 4 can rotate by the gravity of the large block materials and the force of the forward conveying, thereby facilitating the large block materials to smoothly roll out of the belt conveyor along the guide path. By tilting the screening and removing device 2 on the belt conveyor main body 1 and rotatably connecting the roller shaft assemblies 4 to the mounting frame 3, the large block materials can roll out of the belt conveyor along the tilted direction when passing through the roller shaft assemblies 4. That is, the belt conveyor of the embodiment can more reliably automatically remove the large block materials, reducing the possibility of material blockage or jamming, further reducing the labor input, greatly reducing the production cost, improving the production efficiency, and being more convenient to use.

[0028] Referring to Figure 3In some embodiments, the mounting frame 3 of the belt conveyor comprises a support plate 31 fixed on the belt conveyor body 1 and a mounting plate 32 fixed on the support plate 31. The support plate 31 can be provided with two plates, each of which is vertically fixed on the two sides of the belt conveyor frame 5 of the belt conveyor body 1, or the support plate 31 can be provided with only one plate, which is vertically fixed on one side of the belt conveyor frame 5 of the belt conveyor body 1. The mounting plate 32 is vertically fixed with the two support plates 31 to form a "∏" shape structure, or the mounting plate 32 is vertically fixed with one support plate 31 to form an inverted L shape structure. A plurality of roller shaft assemblies 4 are uniformly spaced and mounted on the mounting plate 32. The distance between the lower end of the roller shaft assembly 4 and the upper surface of the conveying belt of the belt conveyor is 100-200 mm, preferably about 150 mm.

[0029] Referring to Figure 3 The roller shaft assembly 4 comprises a fixed roller shaft 41 fixed with the mounting frame 3, a roller 42 sleeved on the fixed roller shaft 41, and a stopper 43 fixed on the fixed roller shaft 41 and located below the roller 42. The fixed roller shaft 41 and the mounting frame 3 can be fixed by nuts or welding. The roller 42 can be made of a steel pipe. The stopper 43 and the fixed roller shaft 41 can be fixed by threading or welding or integrally formed. The stopper 43 is used to prevent the roller 42 from falling off, and the outer diameter of the stopper 43 is larger than the outer diameter of the roller 42.

[0030] Referring to Figure 3 In order to increase the friction force and facilitate the rolling of large materials along the arrangement direction of the roller 42, a friction protrusion 44 is arranged on the roller 42. The friction protrusion 44 is preferably in a hemispherical structure and densely arranged on the outer contour of the roller 42. This structure can avoid the occurrence of material jamming as much as possible.

[0031] Referring to Figure 1 or Figure 3In some embodiments, the belt conveyor has five roller assemblies 4, which are evenly spaced from each other. In practice, the number and spacing of the roller assemblies 4 depend on the width of the conveying belt (i.e. the width perpendicular to the conveying direction in the horizontal plane) and the size of the material to be screened. The size of the support plate 31 closest to the front end of the conveying direction and the distance between the roller assembly 4 closest to the support plate 31 and the support plate 31 depend on the size of the large pieces of material and the size of the roller assembly 4, etc. The distance between the roller assembly 4 closest to the support plate 31 and the support plate 31 is smaller than the distance between adjacent roller assemblies 4. The distance between the roller assembly 4 closest to the edges of the conveying belt (i.e. the left and right edges of the conveying belt perpendicular to the conveying direction in the side view) and the edges of the conveying belt or the edges of the belt conveyor frame 5 is preferably 0; or in other words, the central axis of the fixed roller 41 of the roller assembly 4 closest to the edges of the conveying belt is in the same vertical plane as the edges of the conveying belt or the edges of the belt conveyor frame 5. In this way, it can be avoided that some material is stuck between the support plate 31 and the roller assembly 4 at the edges, and the entire belt conveyor structure can operate more stably and have a longer service life.

[0032] In practice, in some embodiments, the belt conveyor further comprises a sensor for monitoring whether the belt conveyor is blocked and a control system connected to the sensor and the belt conveyor body 1, respectively, for interrupting the conveying of the belt conveyor (such as controlling the driving motor 6 to stop). The sensor can be a visual sensor. When the sensor detects that the large pieces of material are blocked at the roller assembly 4, causing the belt conveyor to be blocked, the sensor sends an instruction to the control system, and the control system controls the driving motor 6 to stop, so that the belt conveyor stops running and an alarm is given to manually clear the blockage. In this way, the belt conveyor can be prevented from being damaged, production can be avoided from being delayed, and the belt conveyor is more convenient to use.

[0033] In practice, in some embodiments, the belt conveyor is provided with a pressure sensor for monitoring whether the belt conveyor is blocked, and the pressure sensor is installed on the mounting plate 32 of the mounting frame 3. When the large pieces of material are blocked at the roller assembly 4, the pressure sensor determines whether the belt conveyor is blocked by monitoring the force when the mounting plate 32 is deformed by being pressed, and then sends a corresponding instruction to the control system. By providing the sensor and the control system, the belt conveyor of the present embodiment can timely alarm and interrupt the conveying of the belt conveyor when it is blocked, which can prevent the belt conveyor from being damaged, prolong its service life, and make it more convenient to use.

[0034] The belt conveyor of the embodiment can automatically select and remove the large block of material remaining on the belt conveyor in the feeding process, reduces manual input, reduces production cost, reduces labor intensity, improves production efficiency, saves time and effort, has simple structure and is convenient to use.

[0035] The belt conveyor of the embodiment can ensure that the large block of material blocked by the roller shaft assemblies smoothly rolls off the belt conveyor along the inclined direction, makes the automatic removal of the large block of material more secure, reduces the possibility of material blockage or jamming, further reduces manual input, greatly reduces production cost, improves production efficiency and is more convenient to use.

[0036] The belt conveyor of the embodiment can automatically block the large block of material passing through, reduces the time for workers to identify and remove the large block of material, also reduces the difficulty and working intensity of identification and removal and improves working efficiency.

[0037] The belt conveyor for conveying construction waste of the utility model can smoothly convey some plastic films, irregular blocky materials and some long strip-shaped materials in the construction waste, solves the problems of material jamming and poor operation of the construction waste and as far as possible avoids manual intervention and reduces labor intensity.

[0038] The embodiments of the utility model are described above in combination with the drawings, and the embodiments and the features in the embodiments in the utility model can be combined with each other without conflict, the utility model is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative and not limited, and the ordinary skilled in the art can make many forms under the inspiration of the utility model without departing from the purpose and the scope protected by the claims, and these all belong to the protection scope of the utility model.

Claims

1. A belt conveyor for conveying construction waste, comprising a belt conveyor body (1), characterized in that: The belt conveyor body (1) is provided with a screening and cleaning device (2); the screening and cleaning device (2) comprises a mounting frame (3) fixed to the belt conveyor body (1) and a plurality of roller assemblies (4) mounted at intervals on the mounting frame (3), the roller assemblies (4) being arranged above the belt conveyor body (1); the angle between the direction in which the plurality of roller assemblies (4) are arranged at intervals and the conveying direction of the belt conveyor body (1) is acute; The roller assembly (4) is rotatably connected to the mounting frame (3), and a friction protrusion (44) is provided on the roller assembly (4).

2. The belt conveyor for conveying construction waste according to claim 1, characterized in that: The roller assembly (4) comprises a fixed roller (41) fixed to the mounting frame (3), a roller (42) sleeved on the fixed roller (41), and a stopper (43) fixed on the fixed roller (41) and located below the roller (42).

3. The belt conveyor for conveying construction waste according to claim 1, characterized in that: The acute angle ranges from 30° to 60°.

4. The belt conveyor for conveying construction waste according to claim 1, characterized in that: The distance between the lower end of the roller assembly (4) and the upper surface of the conveyor belt of the belt conveyor is 100 mm to 200 mm.

5. The belt conveyor for conveying construction waste according to any one of claims 1 to 4, characterized in that: The mounting frame (3) comprises a support plate (31) fixed on the belt conveyor body (1) and a mounting plate (32) fixed on the support plate (31); a plurality of roller assemblies (4) are installed on the mounting plate (32) at intervals.

6. The belt conveyor for conveying construction waste according to any one of claims 1 to 4, characterized in that: The friction protrusion (44) is a hemispherical protrusion.

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