Wet salt belt return desalting device

Abstract

The utility model discloses a wet salt belt return desalting device. The wet salt belt return desalting device comprises a rack and conveying rollers, the conveying roller is a horizontal roller shaft, the two ends of the conveying roller are rotationally matched with the rack through bearings, the conveying roller is covered with a belt, the two sides of the rack are each rotationally matched with a deflection vibration frame of a strip-shaped structure through a deflection shaft, and the ends, away from the deflection shafts, of the deflection vibration frames are connected through brush rollers parallel to the conveying roller. A brushing cylinder is fixed on the brush roller, a brush roller motor is directly or indirectly fixed on the deflection vibration frames, an output shaft of the brush roller motor is in direct or indirect transmission fit with the brush roller, a synchronous rod of a rod-shaped structure is fixed between the two deflection vibration frames, and a brush tooth plate of a plate-shaped structure is fixed on the synchronous rod. The brush tooth plate is provided with brush teeth close to one side of the bristle cylinder. The cleaning device has the beneficial effects that the cleaning effect is improved, the service life of the bristle cylinder is prolonged, and the application range and adaptability are increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying machinery, and particularly relates to a wet salt belt return desalination device. Background Art

[0002] In vacuum salt-making enterprises, wet salt after dehydration by centrifuge contains about 3% water. During the wet salt belt conveying process, some of the wet salt containing water will adhere to the belt of the wet salt conveyor belt. After long-term operation, it will gradually accumulate on the belt of the wet salt conveyor belt, and the more it sticks, the more it sticks. On the one hand, the salt layer wraps around the belt, accelerating the corrosion of the belt by wet salt; on the other hand, due to the uneven thickness of the attachment, the belt will cause the unloaded section of the belt to shake violently up and down during operation. The shaking will bring additional load loss to the conveyor drive roller, accelerate the aging of the belt, and reduce the service life of the belt. What is more serious is that the shaking will cause greater interference to the metering device installed on the conveyor.

[0003] Existing technologies, such as a wet salt conveyor belt cleaning device with publication number CN106586466A, use a brush roller to clean the belt surface of the wet salt conveyor belt. However, when the brush itself comes into contact with wet salt containing water, salt will adhere to it. In addition, the fluffy structure of the brush itself also provides a good space and attachment point for salt attachment. However, the above technology does not provide a cleaning tool for the brush. This will cause the salt stains on and attached to the bristles to accumulate to a certain thickness, which will directly affect the cleaning effect of the bristles on the brush roller. Utility Model Content

[0004] The utility model aims to provide a wet salt belt return desalination device to solve the technical problem in the above-mentioned background technology that the bristles are easily contaminated and accumulate salt stains, which affects the cleaning effect of the bristles on the bristle tube and leads to low cleaning ability of the bristle tube.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A wet salt belt return desalination device, comprising: a frame and a conveyor roller; the conveyor roller is a horizontal roller shaft, and both ends of the conveyor roller are rotatably fitted to the frame by bearings. A belt is covered on the conveyor roller. A power motor is fixed on the frame, and the output shaft of the power motor is directly or indirectly drivingly engaged with the conveyor roller. On both sides of the frame, a set of strip-shaped deflection vibration frames are rotatably fitted by deflection shafts respectively. One end of the deflection vibration frame away from the deflection shaft is connected by a brush roller parallel to the conveyor roller. A brush hair cylinder is fixed on the brush roller, and a hard brush hair is covered on the brush hair cylinder. A brush roller motor is directly or indirectly fixed on the deflection vibration frame, and the output shaft of the brush roller motor is directly or indirectly drivingly engaged with the brush roller. A rod-shaped synchronous rod is fixed between the two sets of deflection vibration frames, and a plate-shaped brush tooth plate is fixed on the synchronous rod. On the side of the brush tooth plate close to the brush hair cylinder, equidistantly distributed brush teeth are provided, and a gap through which the brush hair on the brush hair cylinder can rotate is provided between the brush teeth.

[0007] Further: In order to improve the cleaning strength of the brush hair on the brush hair cylinder for the salt stains and salt spots attached to the belt, a vibration motor is fixed below the brush tooth plate. Under the vibration action of the vibration motor, the brush hair on the brush hair cylinder not only brushes off the salt stains and salt spots attached to the belt, but also the tips of the brush hair on the brush hair cylinder poke and disperse the salt stains and salt spots attached to the belt, improving the cleaning effect of the brush hair cylinder.

[0008] Further: In order to prevent the brush hair cylinder from fitting too closely to the belt under the deflection of the deflection vibration frame and affecting the rotation of the brush hair cylinder, the deflection vibration frame is limited by a support block to control its maximum deflection. The support block is fixed on the side of the frame close to the deflection vibration frame, and the deflection vibration frame will be limited by the support block after deflecting downward to the maximum position due to gravity.

[0009] Further: In order to adjust the distance between the brush hair cylinder and the belt, a block-shaped second cushion seat is provided on the side of the support block close to the vibration frame. The second cushion seat is rotatably fitted to the support block by a screw rod, and the distance between the support block and the vibration frame can be changed integrally by rotating the screw rod of the second cushion seat, thereby adjusting the distance between the brush hair cylinder and the belt.

[0010] Further: In order to reduce the influence of the vibration of the brush hair cylinder on other positions of the equipment, a block-shaped first cushion seat is provided at the corresponding position of the deflection vibration frame to the second cushion seat, and a buffer pad made of rubber or spring is provided between the first cushion seat and the second cushion seat.

[0011] Further: In order to facilitate the replacement operation of the wear part - the buffer pad, a pushing hydraulic cylinder is fixed on the frame beside the support block, and a block-shaped push head is fixed at the output end of the pushing hydraulic cylinder. When the pushing hydraulic cylinder extends, the push head abuts against the side surface of the deflection vibration frame.

[0012] Furthermore, in order to prevent the pusher head from disengaging and shifting from the deflecting vibration frame when the pusher hydraulic cylinder pushes the deflecting vibration frame, an inlaid edge with a convex strip structure is provided on the side of the deflecting vibration frame, and a groove for movably inlaying the inlaid edge is provided on the pusher head.

[0013] Furthermore, in order to prevent the pusher hydraulic cylinder from pushing the deflecting vibration frame too much and causing the deflecting vibration frame to reverse and flip, a limiting rod with a rod-shaped structure is provided on the machine frame. Under the limiting action of the limiting rod, the maximum deflectable angle of the deflecting vibration frame relative to the horizontal plane is less than ninety degrees.

[0014] Furthermore, in order to further improve the safety of the equipment and further prevent the pusher hydraulic cylinder from pushing the deflecting vibration frame too much, the maximum elongation of the pusher hydraulic cylinder should meet the requirement that when the pusher hydraulic cylinder pushes the deflecting vibration frame to the maximum position, the deflecting vibration frame will not contact the limiting rod.

[0015] Furthermore, in order to facilitate the maintenance of the brush tooth plate, at least two groups of block-shaped clamping shaft blocks are fixedly embedded outside the synchronous rod, and the brush tooth plate is fixed on the clamping shaft blocks by bolts; a block-shaped clamping block is provided on the deflecting vibration frame. A horizontal semi-cylindrical notch is provided on each of the clamping block and the deflecting vibration frame, and the two semi-cylindrical notches form a circular through hole, and the synchronous rod is fixedly embedded in this through hole to complete the connection between the synchronous rod and the deflecting vibration frame.

[0016] Furthermore, in order to increase the torque of the rotation of the brush hair cylinder and enhance the cleaning force when the brush hair on the brush hair cylinder brushes off the salt stains and salt spots attached to the belt, the brush roller motor is used in transmission cooperation with a speed reducer. The speed reducer is fixed on the deflecting vibration frame. The output shaft of the speed reducer is coaxially and fixedly connected to the brush roller, and the input shaft of the speed reducer is coaxially and fixedly connected to the output shaft of the brush roller motor. The brush roller motor is fixed on the housing of the speed reducer.

[0017] Furthermore, in order to preliminarily clean the large salt stains and salt spots on the belt in advance before the brush hair cylinder cleans the belt, a fixed rod parallel to the conveyor roller is fixed on the machine frame, and a plate-shaped rough scraper is fixed on the fixed rod. The end of the rough scraper close to the belt is sharpened, and the distance between the sharpened edge and the belt surface is controlled between zero and three millimeters.

[0018] In summary, the utility model has the following beneficial effects:

[0019] ①It is possible to clean the salt stains on the bristles: Through the establishment of the brush tooth plate, after the bristle cylinder operates for a certain period of time, especially after the bristle cylinder gets contaminated with some moisture, some salt stains will adhere to its bristles. When the salt stains accumulate to a certain thickness, it will directly affect the cleaning effect of the bristles on the bristle cylinder. At this time, the brush tooth plate is in a fixed state relative to the bristle cylinder. So when the bristles on the bristle cylinder reach the brush teeth on the brush tooth plate, they will be squeezed and deformed and pass through the gaps between the brush teeth. A part of the hardened salt stains on the bristle surface will lose their adhesion and fall off under the influence of the deformed bristles, removing most of the salt stains on the bristles. Most of the remaining salt stains will be scraped off by the brush teeth. At the same time, driven by the deflecting and vibrating frame that is vibrating at high speed, the salt stains scraped off by the brush teeth will be shaken off under the machine frame and cleaned by special tools or personnel.

[0020] ②The cleaning effect is enhanced: Through the establishment of the vibration motor, when the vibration motor is turned on, under the vibration action of the vibration motor, the vibration motor will drive the deflecting and vibrating frame to vibrate through the brush tooth plate and the synchronous rod. Since the deflecting and vibrating frame is rotationally fitted to the machine frame by a deflecting shaft, when the deflecting and vibrating frame vibrates, it will perform high-speed deflecting vibration with the deflecting shaft as the axis. The deflecting and vibrating frame vibrating at high speed transmits the vibration to the brush roller and the bristle cylinder. The bristles on the bristle cylinder will not only brush off the salt stains and salt spots adhering to the belt, but also the tips of the bristles on the bristle cylinder will poke and disperse the salt stains and salt spots adhering to the belt (during vibration, driven by the deflecting and vibrating frame vibrating at high speed, the bristles on the bristle cylinder will perform small stabbing actions on the belt), cleaning some stubborn salt stains and salt spots.

[0021] ③Pre-scraping reduces the cleaning pressure on the bristle cylinder and extends its service life: Through the establishment of the rough scraper, on the side of the conveyor roller, the belt is in the conveying return journey, and when returning, the belt rotates from below to above. At this time, the belt with large salt stains, salt spots, and salt lumps will be initially scraped off by the rough scraper, leaving only small or thin salt stains and salt spots on the belt, completing the initial cleaning of the belt; the belt that has been initially cleaned by the rough scraper will then rotate to the bristle cylinder.

[0022] ④The distance between the brush hair cylinder and the belt is adjustable, which increases the applicable range and adaptability of the present utility model: Through the adjustable design of the support block and the second cushion seat, when the thickness of the belt changes during replacement or the length of the brush hair on the brush hair cylinder changes, and it is necessary to correspondingly adjust the distance between the belt and the brush hair cylinder, at this time, start the pushing member hydraulic cylinder to extend. The pushing member hydraulic cylinder drives the push head to extend forward. When the groove on the push head is externally embedded into the embedded edge, it will push the deflection vibration frame to deflect around the deflection shaft. The first cushion seat follows the deflection of the deflection vibration frame, and then the first cushion seat and the second cushion seat are separated. Then, by rotating the second cushion seat and the cooperating screw rod as a whole, the elongation of the second cushion seat relative to the support block can be changed. Therefore, when the vibration frame is pressed on the buffer pad again, the distance between the support block and the vibration frame will change relative to each other. When the position of the vibration frame changes, the position of the entire brush hair cylinder on it changes accordingly, thereby changing the distance between the brush hair cylinder and the belt, and then completing the adaptive adjustment of the distance between the belt and the brush hair cylinder. Brief Description of the Drawings

[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model and the running direction of the belt;

[0024] Figure 2 is a schematic diagram of the erection structure of the deflection vibration frame in the present utility model;

[0025] Figure 3 is a schematic diagram of the structure of the brush tooth plate in the present utility model;

[0026] Figure 4 is a schematic diagram of the installation structure of the vibration motor in the present utility model;

[0027] Figure 5 is a schematic diagram of the structure of the distance adjustment mechanism in the present utility model;

[0028] Figure 6 is a schematic diagram of the power source of the brush roller in the present utility model

[0029] Figure 7 is Figure 5 the enlarged schematic diagram of the structure at A in;

[0030] In the figure, 1, frame; 2, conveying roller; 3, power motor; 4, deflection vibration frame; 5, brush roller; 6, brush hair cylinder; 7, brush roller motor; 8, brush tooth plate; 9, rough scraper; 10, belt; 11, support block; 12, buffer pad; 13, pushing member hydraulic cylinder; 14, vibration motor; 41, deflection shaft; 42, synchronous rod; 43, clamping block; 44, first cushion seat; 45, embedded edge; 46, limiting rod; 71, reducer; 81, brush teeth; 82, clamping shaft block; 91, fixing rod; 111, second cushion seat; 131, push head; 132, groove. Detailed Description of the Preferred Embodiment

[0031] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] Embodiment:

[0033] Please refer to Figures 1 - 7 , the present utility model provides a technical solution:

[0034] A desalting device for the return journey of a wet salt belt, comprising: a frame 1 and a conveyor roller 2; the conveyor roller 2 is a horizontal roller shaft, and both ends of the conveyor roller 2 are rotationally fitted on the frame 1 by bearings. A belt 10 is covered on the conveyor roller 2. A power motor 3 is fixed on the frame 1, and the output shaft of the power motor 3 is directly or indirectly drivingly fitted with the conveyor roller 2. On both sides of the frame 1, a set of strip-shaped deflection vibration frames 4 are rotationally fitted by deflection shafts 41 respectively. One end of the deflection vibration frame 4 away from the deflection shaft 41 is connected with a brush roller 5 parallel to the conveyor roller 2. A brush hair cylinder 6 is fixed on the brush roller 5, and a hard brush hair is covered on the brush hair cylinder 6. A brush roller motor 7 is directly or indirectly fixed on the deflection vibration frame 4, and the output shaft of the brush roller motor 7 is directly or indirectly drivingly fitted with the brush roller 5. A rod-shaped synchronous rod 42 is fixed between the two sets of deflection vibration frames 4, and a plate-shaped brush tooth plate 8 is fixed on the synchronous rod 42. On the side of the brush tooth plate 8 close to the brush hair cylinder 6, equidistantly distributed brush teeth 81 are provided, and a gap through which the brush hair on the brush hair cylinder 6 can rotate is provided between the brush teeth 81.

[0035] In order to improve the cleaning strength of the brush hair on the brush hair cylinder 6 for the salt stains and salt spots attached to the belt 10, a vibration motor 14 is fixed below the brush tooth plate 8. Under the vibration of the vibration motor 14, the brush hair on the brush hair cylinder 6 will not only brush off the salt stains and salt spots attached to the belt 10, but also the tips of the brush hair on the brush hair cylinder 6 will poke and disperse the salt stains and salt spots attached to the belt 10, improving the cleaning effect of the brush hair cylinder 6.

[0036] In order to prevent the brush hair cylinder 6 from fitting too closely to the belt 10 under the deflection of the deflection vibration frame 4 and affecting the rotation of the brush hair cylinder 6, the deflection vibration frame 4 is limited by a support block 11 to control its maximum deflection value. The support block 11 is fixed on the side of the frame 1 close to the deflection vibration frame 4, and the deflection vibration frame 4 will be limited by the support block 11 after deflecting downward to the maximum position due to gravity.

[0037] In order to adjust the distance between the brush hair cylinder 6 and the belt 10, a block-shaped second cushion seat 111 is provided on the side of the support block 11 close to the vibration frame 4. The second cushion seat 111 is rotationally fitted on the support block 11 by a screw rod, and the distance between the support block 11 and the vibration frame 4 can be changed as a whole by rotating the screw rod of the second cushion seat 111, thereby adjusting the distance between the brush hair cylinder 6 and the belt 10.

[0038] In order to reduce the impact of the vibration of the bristle tube 6 on other positions of the equipment, the deflection vibration frame 4 is provided with a first block-shaped seat 44 at the corresponding position of the second seat 111, and a buffer pad 12 made of rubber or spring is provided between the first seat 44 and the second seat 111.

[0039] In order to facilitate the replacement of the consumable part - the buffer pad 12, the frame 1 is fixed with a pusher hydraulic cylinder 13 beside the support block 11, and a pusher head 131 with a block-shaped structure is fixed to the output end of the pusher hydraulic cylinder 13. When the pusher hydraulic cylinder 13 is extended, the pusher head 131 and the side of the deflection vibration frame 4 are abutted.

[0040] In order to prevent the pusher head 131 and the deflection vibration frame 4 from being dislocated when the pusher hydraulic cylinder 13 pushes the deflection vibration frame 4, the side of the deflection vibration frame 4 is provided with an outwardly protruding strip-shaped inner embedded edge 45, and the pusher head 131 is provided with a groove 132 for movably embedding the inner embedded edge 45.

[0041] In order to prevent the pusher hydraulic cylinder 13 from pushing the deflection vibration frame 4 too much and causing the deflection vibration frame 4 to flip over, a rod-shaped limit rod 46 is provided on the frame 1. Under the limiting action of the limit rod 46, the maximum deflection angle of the deflection vibration frame 4 relative to the horizontal plane is less than ninety degrees.

[0042] In order to further improve the safety of the equipment and further prevent the pushing hydraulic cylinder 13 from pushing the deflection vibration frame 4 too much, the maximum extension of the pushing hydraulic cylinder 13 must meet the following requirements: when the pushing hydraulic cylinder 13 pushes the deflection vibration frame 4 to deflect to the maximum position, the deflection vibration frame 4 will not contact the limit rod 46.

[0043] In order to facilitate the maintenance of the brush plate 8, the synchronization rod 42 is externally embedded with at least two groups of block-shaped shaft blocks 82, and the brush plate 8 is fixed to the shaft blocks 82 with bolts; a block-shaped clamping block 43 is provided on the deflection vibration frame 4, and a horizontal semi-cylindrical notch is provided on the clamping block 43 and the deflection vibration frame 4 respectively. The two semi-cylindrical notches form a circular through hole, and the synchronization rod 42 is embedded and fixed in this through hole to complete the connection between the synchronization rod 42 and the deflection vibration frame 4.

[0044] In order to increase the torque of the brush tube 6 rotation and increase the cleaning force when the bristles on the brush tube 6 brush off the salt stains and salt spots attached to the belt 10, the brush roller motor 7 adopts a reducer 71 and a brush roller 5 transmission cooperation, the reducer 71 is fixed on the deflection vibration frame 4, the output shaft of the reducer 71 and the brush roller 5 are coaxially fixedly connected, the input shaft of the reducer 71 and the output shaft of the brush roller motor 7 are coaxially fixedly connected, and the brush roller motor 7 is fixed on the outer casing of the reducer 71.

[0045] Before cleaning the belt 10 by the brush hair cylinder 6, in order to preliminarily clean large salt stains and salt spots on the belt 10 in advance, a fixed rod 91 parallel to the conveyor roller 2 is fixed on the frame 1, and a rough scraper 9 with a plate-like structure is fixed on the fixed rod 91. One end of the rough scraper 9 close to the belt 10 is sharpened, and the distance between the sharpened edge and the belt surface of the belt 10 is controlled between zero and three millimeters.

[0046] Brief description of the usage process:

[0047] During use, the power motor 3 drives the conveyor roller 2 to rotate through a speed reducer or direct drive, and the conveyor roller 2 drives the belt 10 to rotate in the Figure 1 shown direction (the other structures cooperating with the belt 10 are the same as those of the existing belt conveyor, so the other structures of the belt conveyor where the belt 10 is located are omitted here); from the Figure 1 shown direction, it can be seen that the side of the belt 10 at the conveyor roller 2 is the conveying return journey. During the return journey, the belt rotates from the lower side to the upper side. At this time, as Figure 4 shown, the belt 10 with large salt stains, salt spots, and salt lumps will be preliminarily scraped off by the rough scraper 9, so that only small or thin salt stains and salt spots are left on the belt 10, completing the preliminary cleaning of the belt 10.

[0048] The belt 10 preliminarily cleaned by the rough scraper 9 rotates to the brush hair cylinder 6. At this time, the brush roller motor 7 is turned on, and the brush roller motor 7 drives the brush roller 5 to rotate through the speed reducer 71. The brush hair cylinder 6 on the brush roller 5 rotates accordingly to brush the belt reaching the brush hair cylinder 6 and clean most of the salt stains and salt spots on it.

[0049] In order to improve the cleaning strength of the bristles on the brush hair cylinder 6 for the salt stains and salt spots attached to the belt 10, at this time, the vibration motor 14 is turned on. Under the vibration of the vibration motor 14, the vibration motor 14 will drive the deflection vibration frame 4 to vibrate through the brush tooth plate 8 and the synchronous rod 42. Since the deflection vibration frame 4 is rotationally fitted on the frame 1 with a deflection shaft 41, when the deflection vibration frame 4 vibrates, it will perform high-speed deflection vibration with the deflection shaft 41 as the axis. The high-speed deflection vibration of the deflection vibration frame 4 transmits the vibration to the brush roller 5 and the brush hair cylinder 6. The bristles on the brush hair cylinder 6 not only brush the salt stains and salt spots attached to the belt 10, but also the tips of the bristles on the brush hair cylinder 6 poke and disperse the salt stains and salt spots attached to the belt 10 (during vibration, driven by the high-speed deflection vibration of the deflection vibration frame 4, the bristles on the brush hair cylinder 6 will perform small stabbing actions on the belt 10), cleaning some stubborn salt stains and salt spots.

[0050] After the bristle cylinder 6 operates for a certain period of time, especially after the bristle cylinder 6 gets contaminated with some moisture, some salt stains will adhere to its bristles. When the salt stains accumulate to a certain thickness, it will directly affect the cleaning effect of the bristles on the bristle cylinder 6. At this time, the brush tooth plate 8 is in a fixed state relative to the bristle cylinder 6. Therefore, when the bristles on the bristle cylinder 6 reach the brush teeth 81 on the brush tooth plate 8, they will be squeezed and deformed and pass through the gaps between the brush teeth 81. A part of the hardened salt stains on the surface of the bristles will lose their adhesion and fall off under the influence of the deformed bristles, removing most of the salt stains on the bristles. Most of the remaining salt stains will be scraped off by the brush teeth 81. At the same time, driven by the deflecting and vibrating frame 4 that deflects and vibrates at high speed, the salt stains scraped off by the brush teeth 81 will be shaken off below the frame 1 and cleaned by special tools or personnel.

[0051] When the thickness of the belt 10 changes during replacement or the length of the bristles on the bristle cylinder 6 changes, and it is necessary to correspondingly adjust the distance between the belt 10 and the bristle cylinder 6, at this time, start the pushing hydraulic cylinder 13 to extend. The pushing hydraulic cylinder 13 drives the push head 131 to extend forward. When the groove 132 on the push head 131 is externally embedded into the embedded edge 45, it will push the deflecting and vibrating frame 4 to deflect around the deflection shaft 41. The first cushion seat 44 follows the deflecting and vibrating frame 4 to deflect, and then the first cushion seat 44 and the second cushion seat 111 are separated. Then, by rotating the second cushion seat 111 and the screw it cooperates with as a whole, the elongation of the second cushion seat 111 relative to the support block 11 can be changed. Therefore, when the vibrating frame 4 is pressed against the buffer pad 12 again, the distance between the support block 11 and the vibrating frame 4 will change relative to each other. When the position of the vibrating frame 4 changes, the position of the entire bristle cylinder 6 on it follows the change, thereby changing the distance between the bristle cylinder 6 and the belt 10, and then completing the adaptive adjustment of the distance between the belt 10 and the bristle cylinder 6.

[0052] When it is necessary to replace the wear part - the buffer pad 12, start the pushing hydraulic cylinder 13 to extend. The pushing hydraulic cylinder 13 drives the push head 131 to extend forward. When the groove 132 on the push head 131 is externally embedded into the embedded edge 45, it will push the deflecting and vibrating frame 4 to deflect around the deflection shaft 41. The first cushion seat 44 follows the deflecting and vibrating frame 4 to deflect, and then the first cushion seat 44 and the second cushion seat 111 are separated. The buffer pad 12 loses the pressing force. At this time, the buffer pad 12 can be removed, and a buffer pad 12 with a suitable thickness can be replaced. After the replacement is completed, control the pushing hydraulic cylinder 13 to shorten to the shortest (when the pushing hydraulic cylinder 13 is not in use, the pushing hydraulic cylinder 13 always remains in the shortest state and will not affect the deflection and vibration of the deflecting and vibrating frame 4). The deflecting and vibrating frame 4 loses support and deflects downward under the action of gravity until the first cushion seat 44 on it is pressed against the new buffer pad 12, completing the replacement operation of the buffer pad 12.

[0053] This specific embodiment is only an interpretation of the present utility model, and it is not a limitation to the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A wet salt belt return desalination device, comprising: Frame (1), conveyor roller (2); characterized in that: the conveyor roller (2) is a horizontal roller shaft, both ends of the conveyor roller (2) are rotationally fitted on the frame (1) by bearings, a belt (10) is covered on the conveyor roller (2), a power motor (3) is fixed on the frame (1), the output shaft of the power motor (3) is directly or indirectly drivingly engaged with the conveyor roller (2), on both sides of the frame (1), a set of deflecting and vibrating frames (4) in strip structure are rotationally fitted by deflecting shafts (41) respectively, one end of the deflecting and vibrating frame (4) far from the deflecting shaft (41) is connected by a brush roller (5) parallel to the conveyor roller (2), a brush hair cylinder (6) is fixed on the brush roller (5), a hard brush hair is covered on the brush hair cylinder (6), a brush roller motor (7) is directly or indirectly fixed on the deflecting and vibrating frame (4), the output shaft of the brush roller motor (7) is directly or indirectly drivingly engaged with the brush roller (5), a synchronizing rod (42) in rod structure is fixed between the two sets of deflecting and vibrating frames (4), a brush tooth plate (8) in plate structure is fixed on the synchronizing rod (42), on the side of the brush tooth plate (8) close to the brush hair cylinder (6), equally spaced brush teeth (81) are provided, and a gap through which the brush hair on the brush hair cylinder (6) can rotate is provided between the brush teeth (81).

2. The wet salt belt return desalination device according to claim 1, characterized in that: A vibration motor (14) is fixed below the brush tooth plate (8).

3. A wet salt belt return desalination device according to claim 1, characterized in that: The deflecting and vibrating frame (4) is limited by a support block (11) to control its maximum deflection value. The support block (11) is fixed on the side of the frame (1) close to the deflecting and vibrating frame (4). After the deflecting and vibrating frame (4) deflects downward due to gravity to the maximum position, it will be limited by the support block (11); on the side of the support block (11) close to the vibrating frame (4), a second cushion seat (111) in block structure is provided, and the second cushion seat (111) is rotationally fitted on the support block (11) by a screw.

4. The wet salt belt return desalination device according to claim 3, characterized in that: At the corresponding position of the deflecting and vibrating frame (4) with respect to the second cushion seat (111), a first cushion seat (44) in block structure is provided, and a buffer pad (12) made of rubber or spring is provided between the first cushion seat (44) and the second cushion seat (111).

5. The wet salt belt return desalination device according to claim 3, characterized in that: A pushing member hydraulic cylinder (13) is fixed beside the support block (11) on the frame (1), and a pushing head (131) in block structure is fixed at the output end of the pushing member hydraulic cylinder (13). When the pushing member hydraulic cylinder (13) extends, the pushing head (131) abuts against the side surface of the deflecting and vibrating frame (4); on the side surface of the deflecting and vibrating frame (4), an inwardly protruding strip structure of an inlaid edge (45) is provided, and a groove (132) for movably embedding the inlaid edge (45) is provided on the pushing head (131).

6. The wet salt belt return desalination device according to claim 5, characterized in that: A limiting rod (46) in rod structure is provided on the frame (1). Under the limiting action of the limiting rod (46), the maximum deflectable angle of the deflecting and vibrating frame (4) relative to the horizontal plane is less than ninety degrees.

7. The wet salt belt return desalination device according to claim 6, characterized in that: The maximum extension amount of the pushing member hydraulic cylinder (13) should satisfy that when the pushing member hydraulic cylinder (13) pushes the deflecting and vibrating frame (4) to deflect to the maximum position, the deflecting and vibrating frame (4) will not contact the limiting rod (46).

8. The wet salt belt return desalination device according to claim 1, characterized in that: At least two groups of block-shaped card shaft blocks (82) are fixedly embedded outside the synchronization rod (42), and the brush tooth plate (8) is fixed on the card shaft blocks (82) by bolts; a block-shaped clamping block (43) is arranged on the deflection vibration frame (4), and a horizontal semi-cylindrical notch is arranged on each of the clamping block (43) and the deflection vibration frame (4). The two semi-cylindrical notches form a circular through hole, and the synchronization rod (42) is fixedly embedded in this through hole to complete the connection between the synchronization rod (42) and the deflection vibration frame (4).

9. The wet salt belt return desalination device according to claim 1, characterized in that: The brush roller motor (7) is in transmission cooperation with the brush roller (5) through a speed reducer (71). The speed reducer (71) is fixed on the deflection vibration frame (4). The output shaft of the speed reducer (71) is coaxially and fixedly connected to the brush roller (5), the input shaft of the speed reducer (71) is coaxially and fixedly connected to the output shaft of the brush roller motor (7), and the brush roller motor (7) is fixed on the housing of the speed reducer (71).

10. A wet salt belt return desalination device according to claim 1, characterized in that: A fixed rod (91) parallel to the conveyor roller (2) is fixed on the frame (1), and a plate-shaped rough scraper (9) is fixed on the fixed rod (91). One end of the rough scraper (9) close to the belt (10) is sharpened, and the distance between the sharpened edge and the belt surface of the belt (10) is controlled between zero and three millimeters.

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