Online cleaning device for linear dehydration vibrating screen

Abstract

The utility model relates to the technical field of vibrating screens, in particular to an online cleaning device for a linear dewatering vibrating screen. Comprising supporting legs, a feeding hopper, a vibrator, a screen box and a screen mesh installed in the screen box, a discharging hopper is arranged at the bottom of the screen mesh, a cleaning assembly is arranged in the screen box and located under the screen mesh, the cleaning assembly comprises a rotating shaft, an oil cylinder and a beating mechanism, installation bases are arranged at the two ends of the rotating shaft, and the rotating shaft is rotationally installed on the installation bases; the bottom of the rotating shaft is fixedly connected with a push plate. The oil cylinder is controlled to stretch out and draw back, the beating ball beats the screen, fine residues in holes of the screen are vibrated out, the purpose of timely vibrating and dredging the screen is achieved, the situation of shutdown maintenance caused by screen blockage is avoided, maintenance cost is reduced, and meanwhile environmental protection accidents caused by residue water are avoided. And through mutual cooperation of a driving motor, a screw rod, a sliding rod, a sliding block and other structures, multiple areas of the screen are beaten, and the cleaning efficiency of the screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, and particularly relates to an on-line cleaning device for a linear dewatering vibrating screen. Background Art

[0002] A linear dewatering vibrating screen is a screen mesh with specific frequency and amplitude, driven by an exciter. The exciter usually consists of two eccentric wheels with equal size and opposite directions. When the exciter vibrates at a specific frequency and amplitude, the screen mesh will also vibrate at the same frequency and amplitude. This vibration will cause the material particles and water on the screen mesh to generate a specific vibration trajectory, so as to achieve the screening of fine slag and water.

[0003] In recent years, with the increasingly strict environmental protection requirements, the wet slag produced by the gasifier is sent to the slag yard after being drained by a slag truck. The water content in the slag is still relatively high, which is likely to cause ground environmental pollution. Using a linear dewatering vibrating screen can effectively remove the water in the wet slag and avoid environmental protection problems during transportation. However, since the linear dewatering vibrating screen was put into use, due to various practical problems, the screen mesh has been frequently blocked by calcium and magnesium ions in the slag water and fine slag generated by the gasifier during operation, resulting in a short operation cycle. The equipment needs to be frequently stopped to dredge the screen mesh, and the overhaul period for screen mesh dredging is long. The equipment cannot operate normally, which has a great impact on the enterprise's environmental protection situation. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an on-line cleaning device for a linear dewatering vibrating screen, which can timely knock the vibrating screen mesh to vibrate off the fine slag on the screen mesh, and reduce the occurrence of shutdown and maintenance caused by screen mesh blockage.

[0005] To achieve the above technical purpose, the utility model proposes the following technical solution: An on-line cleaning device for a linear dewatering vibrating screen, including legs, a feed hopper, a vibrator, a screen box and a screen mesh installed in the screen box. A discharge hopper is arranged at the bottom of the screen mesh. A cleaning component is arranged in the screen box and directly below the screen mesh. The cleaning component includes a rotating shaft, an oil cylinder and a knocking mechanism. Mounting seats are arranged at both ends of the rotating shaft. The rotating shaft is rotatably installed on the mounting seats. A push plate is fixedly connected to the bottom of the rotating shaft. The push plate is hinged to the extending end of the oil cylinder. The knocking mechanism is obliquely fixedly connected to one side of the rotating shaft.

[0006] Further, the knocking mechanism includes a plurality of connecting rods and knocking rods fixedly connected to one ends of the connecting rods. A plurality of knocking balls are arranged on the knocking rods.

[0007] Further, screws and slide bars are provided on both sides inside the screening box and below the screen. A driving motor is provided on the outer wall of the screening box. The driving motor is connected to the screw. Sliders are fixedly connected to the bottoms of the mounting seats. One of the sliders is threadedly connected to the screw, and the other slider is slidably mounted on the slide bar. An installation frame is provided at the bottom of the slider, and the oil cylinder is arranged on the installation frame.

[0008] Further, an impact bar adapted to the number of knocking balls is provided on the back of the screen.

[0009] Further, the knocking ball and the knocking rod are connected by a spring.

[0010] Further, the knocking ball is an iron ball with a solid structure.

[0011] Compared with the prior art, the beneficial effects produced by the present utility model are as follows: The structure of the present utility model is novel, ingeniously conceived, and simple and convenient to operate. Compared with the prior art, it has the following advantages: By controlling the telescopic movement of the oil cylinder, the rotating shaft is rotated by a certain angle, driving the knocking ball to rotate by a certain angle, so that the knocking ball knocks on the screen, vibrating out the fine slag in the pores of the screen, achieving the purpose of timely vibrating and dredging the screen, avoiding the situation of shutdown for maintenance caused by screen blockage, reducing the maintenance cost, and also avoiding environmental protection accidents caused by slag water; Through the mutual cooperation of structures such as the driving motor, screw, slide bar, and slider, the cleaning component is driven to move, knocking on multiple areas of the screen, increasing the cleaning efficiency of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the bottom view structural schematic diagram of the present utility model;

[0014] Figure 3 is the structural schematic diagram of the cleaning component in the screening box of the present utility model;

[0015] Figure 4 is the enlarged view of the structure at A of the present utility model.

[0016] In the figure, 1, support leg; 2, feed hopper; 3, screening box; 4, screen; 5, discharge hopper; 6, rotating shaft; 7, oil cylinder; 8, knocking mechanism; 81, connecting rod; 82, knocking rod; 83, knocking ball; 84, spring; 9, mounting seat; 10, push plate; 11, screw; 12, slide bar; 13, driving motor; 14, slider; 15, installation frame; 16, impact bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following are specific embodiments of the present utility model, and the technical solutions of the present utility model will be further described in conjunction with the accompanying drawings. However, the present utility model is not limited to these embodiments.

[0018] The present utility model provides an on-line cleaning device for a linear dewatering vibrating screen, which includes legs 1, a feed hopper 2, a vibrator, a screen box 3, and a screen mesh 4 installed in the screen box 3. A discharge hopper 5 is provided at the bottom of the screen mesh 4. The discharge hopper 5 can be used to collect the water screened out by the screen mesh 4, avoiding the screened water flowing to the ground and causing pollution to the ground environment. A cleaning component is inclined and provided in the screen box 3 and directly below the screen mesh 4. The cleaning component includes a rotating shaft 6, an oil cylinder 7, and a knocking mechanism 8. Mounting seats 9 are provided at both ends of the rotating shaft 6. The rotating shaft 6 is rotatably installed on the mounting seats 9 through bearings. A push plate 10 is fixedly connected to the bottom of the rotating shaft 6. The push plate 10 is hinged to the extending end of the oil cylinder 7. The knocking mechanism 8 is fixedly connected to one side of the rotating shaft 6 in an inclined manner towards the screen mesh 4. The knocking mechanism 8 includes a plurality of connecting rods 81 and knocking rods 82 fixedly connected to one end of the connecting rods 81. A plurality of knocking balls 83 are provided on the knocking rods 82.

[0019] As Figure 1 and 2 shown, during the operation of the vibrating screen, the oil cylinder 7 is controlled to reciprocate. When the oil cylinder 7 extends, the oil cylinder 7 will push the push plate 10, causing the rotating shaft 6 to rotate a certain angle on the mounting seat 9, indirectly driving the knocking mechanism 8 to rotate a certain angle, so that the knocking balls 83 rotate a certain angle clockwise. The knocking balls 83 knock on the screen mesh 4, vibrating the fine slag on the screen mesh 4 down; when the oil cylinder 7 contracts, the knocking balls 83 are retracted. In this way, the screen mesh 4 is knocked cyclically, enabling the fine slag to break away from the pores of the screen mesh 4, achieving the purpose of timely vibrating and dredging the screen mesh, avoiding the situation of stopping for maintenance due to screen mesh blockage, reducing the maintenance cost, and also avoiding environmental protection accidents caused by slag water.

[0020] Screws 11 and sliding rods 12 are provided on both sides inside the screen box 3 and below the screen mesh 4. The screws 11 and the sliding rods 12 are arranged in parallel. A driving motor 13 is provided on the outer wall of the screen box 3. One end of the screw 11 is rotatably installed on the inner wall of the screen box 3 through a fixing block, and the other end of the screw 11 passes through the screen box 3 and is connected to the driving motor 13. Both ends of the sliding rod 11 are installed on the inner wall of the screen box 3 through support blocks. Sliders 14 are fixedly connected to the bottom of the mounting seats 9. One of the sliders 14 is threadedly connected to the screw 11, and the other slider 14 is slidably installed on the sliding rod 12. An installation frame 15 is provided at the bottom of the slider 14. The oil cylinder 7 is arranged on the installation frame 15.

[0021] As Figure 3As shown, the screw rod 11 and the driving motor 13 function to move the cleaning assembly, and the slide rod 12 functions to balance, support, and guide. When the driving motor 13 is started, it drives one of the sliders 14 to move along the screw rod 11. Under the action of the slide rod 12 and the other slider 14, the cleaning assembly as a whole moves, and different parts of the screen 4 can be knocked, increasing the knocking area and improving the dredging efficiency.

[0022] An impact bar 16 adapted to the number of knocking balls 83 is provided on the back of the screen 4.

[0023] As Figure 4 shown, since the screen 4 is a vulnerable part, the impact bar 16 is fixedly connected to the back of the screen 4. When the knocking ball 83 knocks on the screen 4, it will contact the impact bar 16, indirectly vibrating the screen 4, avoiding direct contact and knocking between the knocking ball 83 and the screen 4, preventing damage to the screen 4, and increasing the service life of the screen 4.

[0024] The knocking ball 83 and the knocking rod 82 are connected by a spring 84. One end of the spring 84 is fixedly connected to the knocking rod 81, and the bottom of the knocking ball 83 is sleeved on the other end of the spring 84 and fixedly connected to the spring 84.

[0025] As Figure 2 shown, the spring 84 can reduce damage to components such as the knocking rod 82, the connecting rod 81, and the rotating shaft 6 caused by the reaction force of the knocking ball 83 when the knocking ball 83 knocks on the screen 4.

[0026] The knocking ball 83 is an iron ball with a solid structure.

[0027] As Figure 4 described above, the knocking ball 83 with a solid structure has concentrated gravity and better knocking effect.

[0028] Principle of use: Start the vibrator, put wet slag into the feed hopper 2, and the wet slag falls onto the front of the screen 4. The moisture in the wet slag is filtered, and the moisture gathers and enters the discharge hopper 5, and then is discharged from the bottom of the discharge hopper 5. A connecting pipe can be installed at the bottom of the discharge hopper 5 to transfer the screened water to other places for treatment. At the same time, start the driving motor 13 and the oil cylinder 7 to move. The driving motor 13 rotates to drive the cleaning assembly to move, so that the knocking mechanism 8 knocks on multiple positions of the screen 4, increasing the knocking area and improving the cleaning efficiency of the screen 4. The oil cylinder 7 extends, and the oil cylinder 7 pushes the push plate 10 to drive the rotating shaft 6 to rotate a certain angle. Under the action of the knocking rod 82 and the connecting rod 81, the knocking ball 83 rotates a certain angle, so that the knocking ball 83 knocks on the impact strip 16. The impact strip 16 transmits the force to the screen 4, indirectly knocking on the screen 4. The knocking ball 83 vibrates the fine slag on the pores of the screen 4. When the oil cylinder 7 contracts, the knocking ball 83 is retracted, and the screen 4 is knocked in this cycle. When the screen 4 of the present utility model is screening, the screen 4 can also be cleaned, which can effectively avoid frequently stopping the equipment to dredge the screen 4 and causing a great impact on the enterprise's environmental protection situation.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. An on-line cleaning device for a linear dehydration vibrating screen, comprising legs (1), a feed hopper (2), a vibrator, a screen box (3), and a screen mesh (4) installed in the screen box (3), characterized in that: A discharge hopper (5) is provided at the bottom of the screen (4). A cleaning assembly is provided in the screen box (3) and directly below the screen (4). The cleaning assembly includes a rotating shaft (6), an oil cylinder (7) and a knocking mechanism (8). Mounting seats (9) are provided at both ends of the rotating shaft (6). The rotating shaft (6) is rotatably mounted on the mounting seats (9). A push plate (10) is fixedly connected to the bottom of the rotating shaft (6). The push plate (10) is hinged to the extending end of the oil cylinder (7). The knocking mechanism (8) is obliquely fixedly connected to one side of the rotating shaft (6).

2. The on-line cleaning device of a linear dewatering vibrating screen according to claim 1, characterized in that: The knocking mechanism (8) includes a plurality of connecting rods (81) and knocking rods (82) fixedly connected to one ends of the connecting rods (81). A plurality of knocking balls (83) are provided on the knocking rods (82).

3. The on-line cleaning device for a linear dewatering vibrating screen according to claim 2, characterized in that: Screws (11) and sliding rods (12) are provided on both sides inside the screen box (3) and below the screen (4). A driving motor (13) is provided on the outer wall of the screen box (3). The driving motor (13) is connected to the screw (11). Sliders (14) are fixedly connected to the bottoms of the mounting seats (9). One of the sliders (14) is threadedly connected to the screw (11), and the other slider (14) is slidably mounted on the sliding rod (12). An installation frame (15) is provided at the bottom of the slider (14). The oil cylinder (7) is arranged on the installation frame (15).

4. The on-line cleaning device of a linear dehydration vibrating screen according to claim 3, characterized in that: Impact strips (16) adapted to the number of the knocking balls (83) are provided on the back of the screen (4).

5. The on-line cleaning device for a linear dewatering vibrating screen according to claim 2, characterized in that: The knocking balls (83) are connected to the knocking rods (82) through springs (84).

6. The on-line cleaning device for a linear dewatering vibrating screen according to claim 2, wherein: The knocking balls (83) are iron balls with a solid structure.

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