Conveying and screening device for gravel production

Abstract

The utility model belongs to the technical field of sand and stone production equipment, and particularly relates to a conveying and screening device for sand and stone production, which comprises a frame rotationally connected with a first conveying belt and a second conveying belt; the side, located on the first conveying belt, of the rack is fixedly connected with a supporting frame, the screening component comprises a screening box fixedly connected to the supporting frame, a stone discharging opening is formed in one side of the screening box, an obliquely-arranged filter plate is rotationally connected to the inner wall of the screening box, and the tail end of the filter plate extends to the outer side of the screening box through the stone discharging opening. And a first motor is mounted on one side of the screening box. The stirring shaft is rotationally connected to the upper portion of the inner side of the screening box, the crushing blocks are arranged on the stirring shaft, large gravel hardening substances can be crushed, follow-up screening is facilitated, the gravel screening effect is improved, gravel can be conveyed separately, and the problem that the screening effect of an existing device is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel production equipment, in particular to a conveying and screening device for sand and gravel production. Background Technique

[0002] Sand and gravel are the main raw materials for concrete production and play an important role in the construction industry; sand and gravel are mainly mined from river channels, reservoirs, coal mines, etc. When processing sand and gravel, screening treatment is required to screen sand and gravel. Traditional screening equipment includes drum sand screening machines, water-washing drum sand screening machines, vibrating screen sand screening machines, etc. For example, a sand and gravel screening device for construction disclosed in the patent publication number CN202122623586.5 realizes the screening treatment of sand and gravel by setting a rotatable filter screen. However, when screening sand and gravel, this scheme cannot separately convey the sand and stones, and separately convey the screened sand and stones, and its functionality is not strong. Moreover, the moisture content of the freshly fished sand and gravel materials is relatively large and easy to agglomerate. It is very difficult to screen the agglomerated sand and gravel, which will directly affect the screening effect of sand and gravel and cause incomplete screening. Therefore, improvement is needed. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a conveying and screening device for sand and gravel production. By rotatably connecting a stirring shaft to the upper inner side of the screening box and arranging crushing blocks on the stirring shaft, it can crush large hard lumps of sand and gravel, thus facilitating subsequent screening, increasing the screening effect of sand and gravel, and solving the problem of poor screening effect of the current device.

[0005] (2) Technical Solutions

[0006] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0007] A conveying and screening device for sand and gravel production, comprising:

[0008] A frame, on which a first conveyor belt and a second conveyor belt are rotatably connected;

[0009] A screening component, a support frame is fixedly connected to one side of the frame where the first conveyor belt is located. The screening component includes a screening box fixedly connected to the support frame, and a stone discharge port is opened on one side of the screening box. An inclined filter plate is rotatably connected to the inner wall of the screening box. The end of the filter plate extends to the outside of the screening box through the stone discharge port, and a first motor is installed on one side of the screening box. A disc is fixedly connected to the output shaft of the first motor. A connecting seat is arranged on one side of the filter plate, and a connecting rod is rotatably connected between the connecting seat and the disc.

[0010] Further, a sand discharge port is provided at the bottom of the screening box. The sand discharge port is located above the first conveyor belt, and the end of the filter plate extends above the second conveyor belt.

[0011] Further, two symmetrically distributed stirring shafts are rotatably connected above the filter plate inside the screening box, and crushing blocks are welded on the outer wall of the stirring shafts at equal intervals.

[0012] Further, a second motor for driving the rotation of the stirring shaft is installed on one side of the screening box.

[0013] Further, a hot air blower is installed on one side of the screening box, and the exhaust port of the hot air blower extends to the inside of the screening box.

[0014] Further, the lower surface of the frame is fixedly connected with support legs, and universal wheels are installed at the lower ends of the support legs.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present utility model provides a conveying and screening device for sand and stone production, which has the following beneficial effects:

[0017] 1. In the present utility model, by arranging the first conveyor belt and the second conveyor belt on the frame, which are respectively used for the transmission of sand and stones, and the screening component is installed on the support frame, so that the screened stones enter the second conveyor belt through the filter plate, and the sand is directly discharged through the sand discharge port and enters the first conveyor belt. Therefore, this device can realize the screening and transmission of sand and stone, and transmit the screened sand and stone to the designated position, with stronger functionality. At the same time, the screening component in this device is reasonably designed, and the motor, disc and connecting rod on the screening component are all located outside the screening box, which will not occupy the internal space and will not affect the normal filtration of sand and stone, and the screening of sand and stone can be carried out stably.

[0018] 2. In the present utility model, by rotatably connecting the stirring shaft at the upper part inside the screening box and arranging the crushing blocks on the stirring shaft, when the sand and stone raw materials enter the inside of the screening box, the large hard lumps can be crushed by the crushing blocks, avoiding the adhesion of the sand and stone raw materials together, and then affecting the sand and stone materials. Therefore, the screening treatment effect of the sand and stone materials can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a rear view three-dimensional diagram of the screening component in the present utility model;

[0021] Figure 3 is a front view three-dimensional diagram of the screening component in the present utility model.

[0022] In the figure: 1, frame; 2, first conveyor belt; 3, support leg; 4, second conveyor belt; 5, screening component; 501, screening box; 502, stone discharge port; 503, connecting rod; 504, connecting seat; 505, sand discharge port; 506, filter plate; 507, first motor; 508, disc; 509, stirring shaft; 5010, crushing block; 5011, second motor; 5012, hot air blower; 6, support frame. Detailed implementation manner

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment

[0025] As Figure 1 and Figure 2 shown, a conveying and screening device for sand and stone production proposed in an embodiment of the present invention includes: a frame 1, on which a first conveyor belt 2 and a second conveyor belt 4 are rotatably connected; a screening component 5, a support frame 6 is fixedly connected to one side of the frame 1 where the first conveyor belt 2 is located, the screening component 5 includes a screening box 501 fixedly connected to the support frame 6, and a stone discharge port 502 is provided on one side of the screening box 501, an inclined filter plate 506 is rotatably connected to the inner wall of the screening box 501, the end of the filter plate 506 extends to the outside of the screening box 501 through the stone discharge port 502, and a first motor 507 is installed on one side of the screening box 501, a disc 508 is fixedly connected to the output shaft of the first motor 507, a connecting seat 504 is provided on one side of the filter plate 506, and a connecting rod 503 is rotatably connected between the connecting seat 504 and the disc 508.

[0026] It should be noted that by separately arranging the first conveyor belt 2 and the second conveyor belt 4 on the rack 1, the first conveyor belt 2 and the second conveyor belt 4 are respectively used for the transmission of the screened sand and stones. By fixing the support frame 6 on the rack 1 and installing the screening component 5 on the support frame 6, the screening component 5 is located above the first conveyor belt 2 and can directly discharge the sand into the first conveyor belt 2. By rotatably connecting the filter plate 506 to the inner wall of the screening box 501, and the filter plate 506 extends to the outside of the screening box 501 through the stone discharge port 502. When the filter plate 506 vibrates, the separation of the sand can be realized, enabling the stones to flow on the filter plate 506 and then enter the second conveyor belt 4. The sand enters the lower inner side of the screening box 501 through the filter plate 506 and is directly discharged and enters the first conveyor belt 2. In this way, the transportation and transmission of the sand and stones are respectively realized through the first conveyor belt 2 and the second conveyor belt 4. By installing the first motor 507 on the outer wall of the screening box 501, when screening and separating the sand and stones, the first motor 507 drives the disc 508 to rotate. There is a connecting rod 503 rotatably connected between the disc 508 and the connecting seat 504. Then, the connecting rod 503 frequently pulls the filter plate 506, causing the filter plate 506 to vibrate, and then realizing the screening and separation of the sand and stones. It is efficient and fast, suitable for actual use, and the first motor 507, the disc 508, the connecting rod 503, etc. in this device are all located outside the screening box 501 and will not affect the normal screening and separation of the sand and stones.

[0027] As Figure 1 and Figure 2 shown, in some embodiments, a sand discharge port 505 is provided at the bottom of the screening box 501. The sand discharge port 505 is located above the first conveyor belt 2, and the end of the filter plate 506 extends above the second conveyor belt 4.

[0028] It should be noted that the sand discharge port 505 is located above the first conveyor belt 2, and the sand discharged from the sand discharge port 505 directly enters the first conveyor belt 2 to realize the transmission of the sand. The end of the filter plate 506 extends above the second conveyor belt 4, enabling the stones on the filter plate 506 to enter the second conveyor belt 4 for the transportation and transmission of the stones.

[0029] As Figure 2 shown, in some embodiments, two symmetrically distributed stirring shafts 509 are rotatably connected above the filter plate 506 inside the screening box 501, and crushing blocks 5010 are welded on the outer walls of the stirring shafts 509 at equal intervals.

[0030] It should be noted that due to reasons such as moisture, there will be large hard lumps in the sand and stone raw materials. These hard lumps directly entering the screening box 501 will affect the screening of the sand and stones. In this device, the stirring shafts 509 are rotatably connected inside the screening box 501. When the stirring shafts 509 rotate, the large hard lumps can be crushed by the crushing blocks 5010 to achieve the purpose of crushing, and then the effective separation of the sand and stones can be carried out.

[0031] As Figure 2 shown, in some embodiments, a second motor 5011 for driving the rotation of the stirring shaft 509 is installed on one side of the screening box 501 to realize the rotational drive of the stirring shaft 509.

[0032] As Figure 3 shown, in some embodiments, a hot air blower 5012 is installed on one side of the screening box 501, and the exhaust port of the hot air blower 5012 extends to the inside of the screening box 501.

[0033] It should be noted that when the hot air blower 5012 works, it can generate hot air, and the hot air blows to the inside of the screening box 501, thereby realizing the auxiliary drying of the sand and stone materials, quickly removing the moisture, and facilitating subsequent transportation, etc.

[0034] As Figure 1 shown, in some embodiments, the lower surface of the frame 1 is fixedly connected with support legs 3, and universal wheels are installed at the lower ends of the support legs 3 for the overall support and movement of the device.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A conveying and screening device for sand and stone production, characterized in that: include: A frame (1), wherein a conveyor belt 1 (2) and a conveyor belt 2 (4) are rotatably connected to the frame (1); A screening component (5), wherein the frame (1) is located on one side of the conveyor belt (2) and is fixedly connected to a support frame (6), the screening component (5) comprising a screening box (501) fixedly connected to the support frame (6), and a stone discharge port (502) is provided on one side of the screening box (501), an inclined filter plate (506) is rotatably connected to the inner wall of the screening box (501), the end of the filter plate (506) extends to the outside of the screening box (501) through the stone discharge port (502), and a first motor (507) is installed on one side of the screening box (501), a disc (508) is fixedly connected to the output shaft of the first motor (507), a connecting seat (504) is provided on one side of the filter plate (506), and a connecting rod (503) is rotatably connected between the connecting seat (504) and the disc (508).

2. A conveying and screening device for sand and stone production according to claim 1, characterized in that: The bottom of the screening box (501) is provided with a sand discharge port (505), which is located above the conveyor belt one (2), and the end of the filter plate (506) extends to the top of the conveyor belt two (4).

3. The conveying and screening device for sand and stone production according to claim 1 is characterized in that: The inner side of the screening box (501) is located above the filter plate (506) and is rotatably connected to two symmetrically distributed stirring shafts (509), and the outer wall of the stirring shaft (509) is welded with equidistantly distributed crushing blocks (5010).

4. A conveying and screening device for sand and stone production according to claim 3, characterized in that: A second motor (5011) for driving the stirring shaft (509) to rotate is installed on one side of the screening box (501).

5. The conveying and screening device for sand and stone production according to claim 1 is characterized in that: A hot air blower (5012) is installed on one side of the screening box (501), and an exhaust port of the hot air blower (5012) extends to the inner side of the screening box (501).

6. The conveying and screening device for sand and stone production according to claim 1 is characterized in that: The lower surface of the frame (1) is fixedly connected to a support leg (3), and a universal wheel is installed at the lower end of the support leg (3).

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