Screening machine for river channel desilting

Abstract

The screening machine comprises a supporting frame, conveying rollers, a conveying belt, a magnetic attraction mechanism, a screening mechanism and a discharging mechanism, the conveying rollers are rotationally connected between supporting legs on the two sides of the front portion and supporting legs on the two sides of the rear portion, the conveying belt is connected between the front conveying roller and the rear conveying roller in a sleeved mode, and the magnetic attraction mechanism is arranged in the middle of the supporting frame. The screening mechanism is arranged at the rear end of the upper portion of the supporting frame, and the discharging mechanism is arranged between the rear portions of the baffles on the two sides. Compared with the prior art, the sludge screening device has the advantages that the screening mechanism is arranged to throw up and scatter sludge along with vibration of the screening mechanism, and the screening effect is better; and the magnetic attraction mechanism is arranged, so that in the sludge falling process, fine metal objects which are not screened out in the sludge are attracted to a magnetic attraction rod for secondary recycling, rapid mounting and dismounting can be achieved through a handle, and metal on the magnetic attraction rod can be taken down conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of river channel dredging, in particular to a screening machine for river channel dredging. Background Art

[0002] River dredging generally refers to the management of the river, which involves extracting the silt deposited on the riverbed for treatment to achieve the purpose of dredging. When dealing with river silt, such as sieving silt, a screening machine is required.

[0003] A screening machine for river channel desilting described in publication number CN220245849U can realize double-layer screening of silt by setting fixed bars and filter cartridges, filter and separate impurities in the silt, and at the same time, by setting a limit plate, it can prevent the silt from sliding down quickly, preventing the silt from flowing out without being fully screened, so that the silt entering the mounting ring can be fully screened. However, the prior art still has defects:

[0004] 1. Although the existing technology uses a fixed bar to rotate the filter cartridge for screening, the sludge has a certain viscosity, and the through holes on the filter cartridge are small and very dense, which increases the resistance to falling to a certain extent, and more sludge will also adhere to the impurities. If a large amount of sludge enters at one time without vibration, it is difficult to completely screen it out.

[0005] 2. There may be some small metal objects such as iron nails and iron wires in the sludge, which will flow away with the sludge during the screening process. The existing technology cannot effectively collect them, resulting in the waste of these recyclable resources. Utility Model Content

[0006] The technical problem to be solved by the utility model is to solve the above-mentioned problem and provide a screening machine for river channel dredging.

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a screening machine for river dredging, comprising:

[0008] A support frame, wherein the support frame is arranged in a U shape, and support legs are arranged at the four corners of the lower part;

[0009] A conveying roller, the conveying roller is rotatably connected between the front supporting legs and the rear supporting legs;

[0010] A conveyor belt, wherein the conveyor belt is sleeved between front and rear conveyor rollers;

[0011] Motor 1, wherein the motor 1 is arranged in the middle of the supporting leg on one side of the rear portion, and the output end of the motor is fixedly connected to one end of the conveying roller;

[0012] Limiting groove 1, the limiting groove 1 is arranged on the opposite side of the two supporting rods of the supporting frame;

[0013] A magnetic attraction mechanism, wherein the magnetic attraction mechanism is arranged in the middle of the support frame;

[0014] The screening mechanism is arranged at the rear end of the upper part of the support frame, including a connecting plate 1, a screening frame, a baffle, an isolation rod, a fixed plate, a connecting plate 2, a connecting plate 3, a positioning rod, a positioning hole, a spring, a second motor, an axle rod, and an eccentric circular block. A connecting plate 1 is arranged on the front side of the upper part of the two support rods of the support frame. The front end of the screening frame is rotatably connected between the connecting plates 1. The screening frame is arranged with the front lower and the rear higher. The baffle is fixedly connected to both sides of the upper part of the screening frame. A number of evenly distributed isolation rods are fixedly connected to the inside of the screening frame. The fixed plate is fixedly connected to The second connecting plate is connected to the rear end of the upper part of the support frame, the second connecting plate is arranged on both sides of the rear end of the lower part of the screening frame, the third connecting plate is rotatably connected to the side of the second connecting plate away from each other, the positioning rod is fixedly connected to the lower end of the third connecting plate, a positioning hole is opened at the rear end of the support frame corresponding to the positioning rod, the positioning rod is clamped in the positioning hole, the spring is sleeved on the outside of the positioning rod, the second motor is fixedly connected to the rear side of the fixing plate, the shaft rod is fixedly connected to the front end of the second motor and passes through the fixing plate, the eccentric block is fixedly connected to the front end of the shaft rod and the upper end is in contact with the screening frame;

[0015] The material unloading mechanism is arranged between the rear parts of the baffles on both sides.

[0016] As an improvement, the magnetic attraction mechanism includes:

[0017] A fixing frame, wherein the fixing frame is arranged in the middle of the supporting frame;

[0018] A limiting block 1, wherein the limiting block 1 is fixedly connected to two sides of the outside of the fixing frame and is clamped in the inside of the limiting groove 1;

[0019] A handle is fixedly connected to the front end of the fixing frame.

[0020] As an improvement, a plurality of evenly distributed magnetic rods are fixedly connected inside the fixing frame.

[0021] As an improvement, the feeding mechanism comprises:

[0022] A second limiting groove, wherein the second limiting groove is provided on an opposite side of the rear portion of the baffle;

[0023] A second limiting block, wherein the second limiting block is clamped in the second limiting groove;

[0024] A partition is fixedly connected between the two limiting blocks.

[0025] As an improvement, one end of the front side of the partition is fixedly connected to a toothed plate, the upper rear end of the side baffle is fixedly connected to motor three, one end of motor three is fixedly connected to a gear, and the gear is meshed with the toothed plate.

[0026] Compared with the prior art, the utility model has the following advantages: 1. The utility model is provided with a screening mechanism, and an inclined screening frame is provided through a connecting plate 1 at the rear end of the upper part of the support frame, and a plurality of isolation rods are provided in the middle of the screening frame to divide a certain space, and a connecting plate 2, a connecting plate 3, a positioning rod, a positioning hole, a spring matching fixing plate, a motor 2, a shaft rod and an eccentric circular block are provided at the rear end of the lower part of the screening frame. The upper end of the eccentric circular block contacts the screening frame, so that the motor 2 drives the eccentric circular block to make an elliptical circular motion, thereby driving the screening frame to vibrate up and down, pouring the sludge on the screening frame, and breaking the sludge with its vibration. The sludge is dispersed, and then due to gravity the sludge falls through the gap onto the conveyor belt, while the larger impurities remain on the screening frame and are transported forward with the vibration. At the same time, a feeding mechanism is arranged to cooperate with the limiting block 2, the partition, the tooth plate, the motor 3 and the gear through the limiting groove 2, so that the partition is controlled by the motor 3 to move up and down, and the sludge is poured in from the back side of the partition and flows forward through the gap between the partition and the screening frame. Therefore, the size of the discharge port can be adjusted according to the viscosity of the sludge, thereby controlling the discharge speed so that there will not be too much sludge on the screening frame, resulting in part of the sludge not being completely screened out. Compared with the prior art, the sludge screening effect is improved.

[0027] 2. The utility model is provided with a magnetic suction mechanism which cooperates with a limit block, a handle and a magnetic suction rod through a fixed frame, so that in the process of sludge falling, small metal objects that have not been screened out inside are adsorbed onto the magnetic suction rod for secondary recycling, and the handle can be used for quick installation and disassembly, so that the metal on the magnetic suction rod can be easily removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a three-dimensional schematic diagram of a screening machine for river channel desilting.

[0029] Figure 2 The utility model is a structural diagram of a screening machine for river channel dredging.

[0030] Figure 3 The utility model is a three-dimensional schematic diagram of a part of the mechanism of a screening machine for river channel desilting.

[0031] Figure 4 The utility model is a side cross-sectional schematic diagram of a screening machine for river channel desilting.

[0032] Figure 5 The utility model is a front cross-sectional view of a screening machine for river channel desilting.

[0033] Figure 6 It is an enlarged view of A of a screening machine for river dredging of the utility model.

[0034] As shown in the figure: 1. Support frame; 2. Support leg; 3. Conveyor roller; 4. Conveyor belt; 5. Motor 1; 6. Limit slot 1; 7. Magnetic suction mechanism; 7.1. Fixed frame; 7.2. Limit block 1; 7.3. Handle; 7.4. Magnetic suction rod; 8. Screening mechanism; 8.1. Connecting plate 1; 8.2. Screening frame; 8.3. Baffle; 8.4. Isolation rod; 8.5. Fixed plate; 8.6. Connecting plate 2; 8.7. Connecting plate 3; 8.8. Positioning rod; 8.9. Positioning hole; 8.10. Spring; 8.11. Motor 2; 8.12. Shaft rod; 8.13. Eccentric circle; 9. Unloading mechanism; 9.1. Limit slot 2; 9.2. Limit block 2; 9.3. Partition plate; 9.4. Tooth plate; 9.5. Motor 3; 9.6. Gear. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0036] Combined with Figure 1 The utility model is provided with a U-shaped steel support frame 1, and support legs 2 are provided at the four corners of the lower part. Conveying rollers 3 are rotatably connected between the front and rear support legs 2, and a conveyor belt 4 is sleeved therebetween for transporting sludge. A motor 5 is fixedly connected in the middle of the rear support leg 2, and the output end is fixedly connected to one end of the conveying roller 3.

[0037] Combined with Figure 3 With attached Figure 5 The utility model is provided with a screening mechanism 8 at the rear end of the upper part of the support frame 1, including a connecting plate 1 8.1, a screening frame 8.2, a baffle 8.3, an isolation rod 8.4, a fixed plate 8.5, a connecting plate 2 8.6, a connecting plate 3 8.7, a positioning rod 8.8, a positioning hole 8.9, a spring 8.10, a motor 2 8.11, a shaft rod 8.12, and an eccentric block 8.13. A connecting plate 1 8.1 is provided on the front side of the upper part of the two supporting rods of the support frame 1, and a screening frame 8.2 is rotatably connected between the connecting plates 1 8.1, and is tilted in a front low and rear high manner to facilitate the sludge to slide forward, baffles 8.3 are fixedly connected to both sides of the upper part of the screening frame 8.2, and a plurality of evenly distributed isolation rods 8.4 are fixedly connected inside the screening frame 8.2, and a certain space is separated between each isolation rod 8.4, so that the sludge can fall from the gap onto the conveyor belt 4.

[0038] A fixing plate 8.5 is arranged at the rear end of the upper part of the support frame 1, and connecting plates 8.6 are arranged on both sides of the rear end of the lower part of the screening frame 8.2. The connecting plates 8.6 are connected to the connecting plates 8.7 on one side away from each other. The lower end of the connecting plates 8.7 is fixedly connected to a positioning rod 8.8. A positioning hole 8.9 is opened at the rear end of the support frame 1 corresponding to the positioning rod 8.8. The positioning rod 8.8 is clamped in the positioning hole 8.9. The spring 8.10 is sleeved on the outside of the positioning rod 8.8 and clamped between the connecting plates 8.7 and the support frame 1 to play a role of resetting and buffering. The rear side of the fixing plate 8.5 is fixedly connected to the motor 8.11 The front end of the motor 8.11 is fixedly connected with a shaft 8.12 and penetrates the fixed plate 8.5. The eccentric block 8.13 is fixedly connected to the front end of the shaft 8.12. The shaft 8.12 is inserted at the eccentric part of the eccentric block 8.13. The upper end of the eccentric block 8.13 contacts the screening frame 8.2, so that the motor 8.11 drives the eccentric block 8.13 to make an elliptical circular motion, and the resetting effect of the spring 8.10 drives the screening frame 8.2 to vibrate continuously, breaking up the sludge and throwing it up. After falling by gravity, it is easier to fall through the gap of the isolation rod 8.4, and the sludge attached to the impurities will also be shaken off.

[0039] Combined with Figure 2 With attached Figure 6 The utility model is provided with a feeding mechanism 9 between the rear parts of the baffles 8.3 on both sides, including a limiting groove 9.1, a limiting block 9.2, a partition 9.3, a tooth plate 9.4, a motor 9.5, and a gear 9.6. A limiting groove 9.1 is provided on the opposite side of the rear part of the baffle 8.3, and a partition 9.3 is provided between the baffles 8.3. The limiting blocks 9.2 are fixedly connected on both sides of the partition 9.3, and are clamped in the limiting groove 9.1, so that the partition 9.3 can move up and down with the limiting groove 9.1. The front end of the partition 9.3 is fixedly connected with a tooth plate 9.4, a motor 3 9.5 is fixedly connected to the rear end of the upper part of the baffle 8.3 on one side, and a gear 9.6 is fixedly connected to one end of the motor 3 9.5. The gear 9.6 is meshed with the tooth plate 9.4, and the motor 3 9.5 controls the partition 9.3 to move up and down. The sludge is poured from the rear side of the partition 9.3 onto the screening frame 8.2 and flows forward through the gap between the partition 9.3 and the screening frame 8.2. The size of the discharge port can be adjusted according to the viscosity of the sludge, thereby controlling the discharge speed so that there will not be too much sludge on the screening frame 8.2, resulting in some sludge not being completely screened out.

[0040] Combined with Figure 2The utility model provides a limiting groove 6 on one side opposite to the two supporting rods of the support frame 1, and a magnetic suction mechanism 7 is arranged in the middle of the support frame 1, including a fixed frame 7.1, a limiting block 7.2, a handle 7.3, and a magnetic suction rod 7.4. A fixed frame 7.1 is arranged in the middle of the support frame 1, and the two sides of the fixed frame 7.1 are fixedly connected to the limiting blocks 7.2 on the outside and are clamped in the limiting groove 6. The front end of the fixed frame 7.1 is fixedly connected to the handle 7.3, and the fixed frame 7.1 can be quickly installed and disassembled by pulling the handle 7.3. The fixed frame 7.1 is fixedly connected to a plurality of evenly distributed magnetic suction rods 7.4, so that in the process of sludge falling, the small metal objects that are not screened out inside are adsorbed on the magnetic suction rod 7.4 for secondary recycling.

[0041] When the utility model is implemented, Figure 1 As shown, the starting motor 3 9.5 adjusts the distance between the partition 9.3 and the isolation rod 8.4 according to the viscosity of the sludge through the feeding mechanism 9, and the starting motor 2 8.11, through the eccentric block 8.13, the positioning rod 8.8, the positioning hole 8.9 and the spring 8.10, etc., to make the screening frame 8.2 vibrate, and the sludge is poured into the screening frame 8.2 from the back of the partition 9.3. With the continuous vibration, the sludge is broken up, thrown up and moved forward, and the sludge falls through the gap between the isolation rods 8.4 to the conveyor belt 4 for transportation. The large impurities are separated and continue to move forward. The motor 3 9.8 is started to rotate the brush cylinder 9.6 to flatten the shrimps that have clumped together during transportation again, so that some small shrimps will not fall down due to mutual connection. The large shrimps fall through the screening frame 8.2 to the conveyor belt 5 for transportation. During the falling of the sludge, the small metal objects that have not been screened out inside are adsorbed on the magnetic suction rod 7.4. When the screening is completed, the handle 7.3 is pulled out to pull out the fixed frame 7.1, and the small metal objects can be removed for secondary recycling.

[0042] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0043] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A screening machine for river dredging, It is characterized in that include: A support frame (1), wherein the support frame (1) is arranged in a U shape, and support legs (2) are arranged at four corners of the lower portion; A conveying roller (3), the conveying roller (3) being rotatably connected between the front two side support legs (2) and between the rear two side support legs (2); A conveyor belt (4), wherein the conveyor belt (4) is sleeved between the front and rear conveyor rollers (3); Motor 1 (5), wherein the motor 1 (5) is arranged in the middle of the supporting leg (2) on one side of the rear portion, and the output end of the motor is fixedly connected to one end of the conveying roller (3); A limiting groove (6), wherein the limiting groove (6) is provided on the opposite side of the two supporting rods of the support frame (1); A magnetic attraction mechanism (7), wherein the magnetic attraction mechanism (7) is arranged in the middle of the support frame (1); A screening mechanism (8), the screening mechanism (8) is arranged at the upper rear end of a support frame (1), comprising a connecting plate 1 (8.1), a screening frame (8.2), a baffle (8.3), an isolation rod (8.4), a fixed plate (8.5), a connecting plate 2 (8.6), a connecting plate 3 (8.7), a positioning rod (8.8), a positioning hole (8.9), a spring (8.10), a motor 2 (8.11), an axle rod (8.12), and an eccentric circular block (8.13). A connecting plate 1 (8.1) is arranged at the front side of the upper part of two supporting rods of the support frame (1), the front end of the screening frame (8.2) is rotatably connected between the connecting plates 1 (8.1), the screening frame (8.2) is arranged with the front lower and the rear higher, the baffle (8.3) is fixedly connected to both sides of the upper part of the screening frame (8.2), a plurality of evenly distributed isolation rods (8.4) are fixedly connected inside the screening frame (8.2), the fixing plate (8.6) is fixedly connected to the inner part of the screening frame (8.2), and the fixing plate (8.7) is fixedly connected to the inner part of the screening frame (8.2). The second connecting plate (8.5) is fixedly connected to the upper rear end of the support frame (1), the second connecting plate (8.6) is arranged on both sides of the lower rear end of the screening frame (8.2), the third connecting plate (8.7) is rotatably connected to the side of the second connecting plate (8.6) away from each other, the positioning rod (8.8) is fixedly connected to the lower end of the third connecting plate (8.7), a positioning hole (8.9) is opened at the rear end of the support frame (1) corresponding to the positioning rod (8.8), the positioning rod (8.8) is clamped in the positioning hole (8.9), the spring (8.10) is sleeved on the outside of the positioning rod (8.8), the second motor (8.11) is fixedly connected to the rear side of the fixing plate (8.5), the shaft rod (8.12) is fixedly connected to the front end of the second motor (8.11) and penetrates the fixing plate (8.5), and the eccentric block (8.13) is fixedly connected to the front end of the shaft rod (8.12) and the upper end is in contact with the screening frame (8.2); A material discharge mechanism (9), wherein the material discharge mechanism (9) is arranged between the rear parts of the baffles (8.3) on both sides.

2. A screening machine for river dredging according to claim 1, Features: The magnetic attraction mechanism (7) comprises: A fixing frame (7.1), wherein the fixing frame (7.1) is arranged in the middle of the supporting frame (1); A limit block 1 (7.2), wherein the limit block 1 (7.2) is fixedly connected to two sides of the outside of the fixed frame (7.1) and is clamped inside the limit groove 1 (6); A handle (7.3), wherein the handle (7.3) is fixedly connected to the front end of the fixing frame (7.1).

3. A screening machine for river dredging according to claim 2, Features: A plurality of evenly distributed magnetic attraction rods (7.4) are fixedly connected inside the fixing frame (7.1).

4. A screening machine for river dredging according to claim 3, It is characterized in that The unloading mechanism (9) comprises: A second limiting groove (9.1), wherein the second limiting groove (9.1) is provided on a side opposite to the rear of the baffle (8.3); A second limiting block (9.2), wherein the second limiting block (9.2) is snap-connected inside the second limiting groove (9.1); A partition plate (9.3), wherein the partition plate (9.3) is fixedly connected between the second limiting blocks (9.2).

5. A screening machine for river dredging according to claim 4, Features: A toothed plate (9.4) is fixedly connected to one end of the front side of the partition (9.3), a motor three (9.5) is fixedly connected to the rear end of the upper part of the one side baffle (8.3), a gear (9.6) is fixedly connected to one end of the motor three (9.5), and the gear (9.6) is meshed with the toothed plate (9.4).

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