Dewatering screen for machine-made sand production

Abstract

The utility model relates to the technical field of machine-made sand production, in particular to a dewatering screen for machine-made sand production, which comprises a bottom plate and a box body positioned above the bottom plate, the front side and the rear side of the box body are fixedly connected with support plates, the lower ends of the two support plates are fixedly connected with two springs fixedly connected with the bottom plate, and the two springs are fixedly connected with the bottom plate. Vibration motors are mounted on the front side and the rear side of the box body correspondingly, rotating shafts are rotationally connected to the front side and the rear side of the inner wall of the box body correspondingly, and a screen drum is fixedly connected between the two rotating shafts; the machine-made sand needs to be added into the screen drum, then the hydraulic cylinder drives the pressing disc to enter the screen drum and continuously extrude the machine-made sand, at the moment, mutual extrusion force also exists between particles of the machine-made sand, and redundant sewage in the machine-made sand passes through meshes of the screen drum until redundant water is squeezed to be dry. Therefore, the purpose of improving the dehydration effect is achieved through the mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of machine-made sand production, and specifically to a dehydration screen for machine-made sand production. BACKGROUND

[0002] At present, machine-made sand refers to sand processed by sand making machines and other auxiliary equipment. In recent years, with the rapid development of various domestic construction undertakings, the investment in infrastructure such as highways and railways is increasing, and a large amount of sand is urgently needed. Due to the increasing scarcity of natural sand resources and the serious damage caused by the exploitation of natural sand to the environment, machine-made sand has developed rapidly. After production, machine-made sand needs to be filtered on a dehydration screen.

[0003] A dehydration screen for machine-made sand production disclosed in Chinese Patent No. CN216418483U sets a first screen mesh and a discharge hopper. The first screen mesh can filter large stone blocks in machine-made sand, and the machine-made sand can be injected into the inner cavity of the dehydration frame through the discharge hopper, thereby avoiding the accumulation of machine-made sand at the bottom of the dehydration frame. A second screen mesh is provided to further filter the sewage in the inner cavity of the water storage hopper, comprehensively filter the machine-made sand, and prevent the recovery of machine-made sand particles that are too small in the sewage, thereby preventing waste during the dehydration operation of machine-made sand.

[0004] The dehydration screen for machine-made sand production has the following disadvantages. Due to the dehydration method by screen mesh vibration, the machine-made sand after dehydration still contains a large amount of water, resulting in poor dehydration effect. Therefore, it is necessary to propose a dehydration screen for machine-made sand production to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a dehydration screen for machine-made sand production, which has the characteristics of improving dehydration effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a dehydration screen for machine-made sand production, comprising a bottom plate and a box body located above the bottom plate, the front and rear sides of the box body are fixedly connected with support plates, the lower ends of the two support plates are fixedly connected with two springs fixedly connected with the bottom plate, and vibration motors are installed on the front and rear sides of the box body.

[0007] The front and rear sides of the inner wall of the box body are rotatably connected with shafts, a screen cylinder is fixedly connected between the two shafts, the rear end of the rear shaft is fixedly connected with a worm gear through a connecting shaft penetrating the box body, a frame body is fixedly connected to the rear side of the box body, a worm gear meshing with the worm gear is rotatably connected inside the frame body, and the worm gear is driven by a drive motor installed on the outside of the frame body.

[0008] An L-shaped frame is fixedly connected to the upper end of the box body. A hydraulic cylinder is installed on the upper side of the L-shaped frame. The output end of the hydraulic cylinder passes through the L-shaped frame and is fixedly connected to a pressure plate located directly above the screen cylinder.

[0009] A through groove is provided on the left side of the inner wall of the box. A guide plate passing through the through groove is movably connected to the right side of the inner wall of the box via a hinge. A cylinder is movably connected to the left side of the box via a hinge. The output end of the cylinder is movably connected to the lower side of the guide plate via a hinge.

[0010] To improve the stability of the pressure plate's up-and-down movement, in a preferred embodiment of this utility model of a dewatering screen for manufactured sand production, the upper end of the pressure plate is fixedly connected to two sliding rods that pass through an L-shaped frame and are slidably connected to it.

[0011] To facilitate the passage of wastewater through the guide plate, as a preferred embodiment of the dewatering screen for manufactured sand production of this utility model, the outer wall of the guide plate is provided with multiple water passage holes.

[0012] In order to facilitate the guidance of wastewater to the interior of the outlet, in a preferred embodiment of the dewatering screen for the production of manufactured sand according to this utility model, a guide bucket is fixedly connected to the lower side of the inner wall of the box, and an outlet located on the outer side of the inner wall of the guide bucket is connected through the lower side of the box.

[0013] To facilitate the fit between the pressure plate and the inside of the screen cylinder, the pressure plate, preferably of the dewatering screen for manufactured sand production according to this utility model, has a circular structure.

[0014] To facilitate the installation and fixation of the device, preferably, as a dewatering screen for the production of manufactured sand according to this utility model, mounting plates are fixedly connected to both the left and right sides of the base plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] When using it, the manufactured sand needs to be added into the screen cylinder, and then the hydraulic cylinder drives the pressure plate into the screen cylinder to continuously squeeze the manufactured sand. At this time, there is also a mutual squeezing force between the particles of manufactured sand, and the excess sewage inside the manufactured sand will pass through the mesh of the screen cylinder until the excess water is squeezed out. In this way, the purpose of improving the dewatering effect is achieved. Attached Figure Description

[0017] Fig. 1 This is a front sectional view of the present invention.

[0018] Fig. 2 This is a right-side sectional view of the housing of this utility model;

[0019] Fig. 3 This is a diagram of the external structure of the guide bucket of this utility model.

[0020] In the diagram: 1. Base plate; 2. Box body; 3. Support plate; 4. Spring; 5. Rotating shaft; 6. Screen cylinder; 7. Vibrating motor; 8. Worm gear; 9. Frame; 10. Worm; 11. L-shaped frame; 12. Hydraulic cylinder; 13. Pressure plate; 14. Slide rod; 15. Guide hopper; 16. Through groove; 17. Guide plate; 18. Cylinder. Detailed Implementation

[0021] Please see Figs. 1 to 3 A dewatering screen for manufactured sand production includes a base plate 1 and a box 2 located above the base plate 1. Support plates 3 are fixedly connected to both the front and rear sides of the box 2. Two springs 4 fixedly connected to the base plate 1 are fixedly connected to the lower ends of the two support plates 3. Vibration motors 7 are installed on both the front and rear sides of the box 2.

[0022] Rotating shafts 5 are rotatably connected to both the front and rear sides of the inner wall of the box 2. A screen cylinder 6 is fixedly connected between the two rotating shafts 5. A worm gear 8 is fixedly connected to the rear end of the rotating shaft 5 through the connecting shaft that passes through the box 2. A frame 9 is fixedly connected to the rear side of the box 2. A worm 10 that meshes with the worm gear 8 is rotatably connected inside the frame 9. The worm 10 is driven by a drive motor installed on the outside of the frame 9.

[0023] An L-shaped frame 11 is fixedly connected to the upper end of the box 2. A hydraulic cylinder 12 is installed on the upper side of the L-shaped frame 11. The output end of the hydraulic cylinder 12 passes through the L-shaped frame 11 and is fixedly connected to a pressure plate 13 located directly above the screen cylinder 6.

[0024] A through groove 16 is provided on the left side of the inner wall of the box 2. A guide plate 17 passing through the through groove 16 is movably connected to the right side of the inner wall of the box 2 via a hinge. A cylinder 18 is movably connected to the left side of the box 2 via a hinge. The output end of the cylinder 18 is movably connected to the lower side of the guide plate 17 via a hinge.

[0025] In this embodiment: During use, manufactured sand needs to be added into the screen cylinder 6. After reaching the appropriate position, the hydraulic cylinder 12 drives the pressure plate 13 to move downwards and enter the screen cylinder 6, where it continuously squeezes the manufactured sand. At this time, there is also a mutual squeezing force between the particles of the manufactured sand. Excess wastewater inside the manufactured sand will pass through the mesh of the screen cylinder 6. Since the mesh of the screen cylinder 6 only allows wastewater to pass through, it can isolate the manufactured sand inside the screen cylinder 6 until the excess water is squeezed out, thereby improving the dewatering effect. The wastewater will flow out through the guide plate 17. The water inlet causes the pressure plate 13 to reset upwards, and the drive motor drives the worm gear 10 to rotate, which in turn drives the worm wheel 8 to rotate. At the same time, it drives the two rotating shafts 5 and the screen cylinder 6 to rotate, so that the manufactured sand inside the screen cylinder 6 can be poured onto the upper end of the guide plate 17. Meanwhile, the two vibration motors 7 drive the box 2 to vibrate under the flexible constraint of the four springs 4, which in turn drives the screen cylinder 6 and the guide plate 17 to vibrate, so that the remaining manufactured sand inside the screen cylinder 6 can be shaken off. Then, the cylinder 18 drives the guide plate 17 to move counterclockwise, so that the manufactured sand on the guide plate 17 can be discharged from the passage trough 16.

[0026] As a technical optimization of this utility model, the upper end of the pressure plate 13 is fixedly connected to two sliding rods 14 that pass through the L-shaped frame 11 and are slidably connected to it.

[0027] In this embodiment, two slide bars 14 are provided to improve the stability of the pressure plate 13's up-and-down movement.

[0028] As a technical optimization of this utility model, the outer wall of the guide plate 17 is provided with multiple water passage holes.

[0029] In this embodiment, multiple water passage holes are provided to facilitate the passage of wastewater through the guide plate 17.

[0030] As a technical optimization of this utility model, a guide bucket 15 is fixedly connected to the lower side of the inner wall of the box 2, and a water outlet located on the outer side of the inner wall of the guide bucket 15 is connected through the lower side of the box 2.

[0031] In this embodiment: a guide bucket 15 is provided to guide the sewage into the interior of the outlet.

[0032] As a technical optimization of this utility model, the pressure plate 13 has a circular structure.

[0033] In this embodiment, by setting the pressure plate 13 to a circular structure, the pressure plate 13 can be made to fit with the interior of the sieve cylinder 6.

[0034] As a technical optimization of this utility model, mounting plates are fixedly connected to both the left and right sides of the base plate 1.

[0035] In this embodiment, two mounting plates are provided to facilitate the installation and fixation of the device.

[0036] Working principle: During operation, manufactured sand is first added to the inside of the screen cylinder 6. Once it reaches the appropriate position, the hydraulic cylinder 12 drives the pressure plate 13 downwards, entering the inside of the screen cylinder 6. This continuously compresses the manufactured sand, creating a mutual compressive force between the sand particles. Excess wastewater inside the sand passes through the mesh of the screen cylinder 6. Since the mesh of the screen cylinder 6 only allows wastewater to pass through, it isolates the manufactured sand inside the screen cylinder 6 until the excess water is squeezed out, thus improving the dewatering effect. The wastewater then flows to the outlet through the guide plate 17. The pressure plate 13 is then reset upwards, and the worm gear 10 is rotated by the drive motor, which in turn drives the worm wheel 8 to rotate. At the same time, the two rotating shafts 5 and the screen cylinder 6 are rotated, which allows the machine sand inside the screen cylinder 6 to be poured onto the upper end of the guide plate 17. Meanwhile, the two vibrating motors 7 drive the housing 2 to vibrate under the flexible constraint of the four springs 4, which in turn drives the screen cylinder 6 and the guide plate 17 to vibrate, which in turn shakes off the remaining machine sand inside the screen cylinder 6. Then, the cylinder 18 drives the guide plate 17 to move counterclockwise, which allows the machine sand on the guide plate 17 to be discharged from the passage trough 16.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dewatering screen for manufactured sand production, comprising a bottom plate (1) and a box (2) located above the bottom plate (1), characterized in that: The front and rear sides of the box (2) are fixedly connected with support plates (3), and the lower ends of the two support plates (3) are fixedly connected with two springs (4) that are fixedly connected to the bottom plate (1). Vibration motors (7) are installed on the front and rear sides of the box (2). The front and rear sides of the inner wall of the box (2) are rotatably connected to a rotating shaft (5), and a screen cylinder (6) is fixedly connected between the two rotating shafts (5). The rear end of the rotating shaft (5) is fixedly connected to a worm gear (8) through a connecting shaft that passes through the box (2). A frame (9) is fixedly connected to the rear side of the box (2). A worm (10) that meshes with the worm gear (8) is rotatably connected inside the frame (9). The worm (10) is driven by a drive motor installed on the outside of the frame (9). An L-shaped frame (11) is fixedly connected to the upper end of the box (2). A hydraulic cylinder (12) is installed on the upper side of the L-shaped frame (11). The output end of the hydraulic cylinder (12) passes through the L-shaped frame (11) and is fixedly connected to a pressure plate (13) located directly above the screen cylinder (6). A through groove (16) is provided on the left side of the inner wall of the box (2). A guide plate (17) passing through the through groove (16) is movably connected to the right side of the inner wall of the box (2) via a hinge. A cylinder (18) is movably connected to the left side of the box (2) via a hinge. The output end of the cylinder (18) is movably connected to the lower side of the guide plate (17) via a hinge.

2. The dewatering screen for manufactured sand production according to claim 1, characterized in that: The upper end of the pressure plate (13) is fixedly connected to two slide rods (14) that pass through the L-shaped frame (11) and are slidably connected to it.

3. The dewatering screen for manufactured sand production according to claim 1, characterized in that: The outer wall of the guide plate (17) is provided with multiple water passage holes.

4. A dewatering screen for manufactured sand production according to claim 1, characterized in that: A guide bucket (15) is fixedly connected to the lower side of the inner wall of the box (2), and a water outlet located on the outer side of the inner wall of the guide bucket (15) is connected through the lower side of the box (2).

5. A dewatering screen for manufactured sand production according to claim 1, characterized in that: The pressure plate (13) has a circular structure.

6. A dewatering screen for manufactured sand production according to claim 1, characterized in that: Mounting plates are fixedly connected to both the left and right sides of the base plate (1).

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