Vibration conveying and cooling device for end crystalline salt of MVR evaporation system

Abstract

This invention discloses a vibration conveying and cooling device for end-of-line crystallized salt in an MVR evaporation system, belonging to the field of end-of-line crystallized salt treatment in MVR evaporation systems. It includes a base, characterized in that: the top of the base extends upward to form an arc-shaped limiting plate, and a conveying pipe is rotatably connected inside the arc-shaped limiting plate; a bamboo-joint tube is fixedly connected to the left side of the conveying pipe, and a driving mechanism is provided on the top left side of the base. The driving component moves the toothed plate and rotating teeth, driving the gear and rotating disk to rotate, causing the extrusion block on the rotating disk to intermittently lift the fastener, thereby causing the conveying pipe to periodically deflect and vibrate. This vibration conveying method causes the crystallized salt to continuously tumble inside the pipe, fully contacting the pipe wall, significantly improving cooling efficiency and temperature uniformity. The triangular grooves on the surface of the extrusion block generate high-frequency micro-vibrations during contact, further enhancing the vibration effect of the conveying pipe.

Description

Technical Field

[0001] This invention relates to the field of end-of-line crystallization salt treatment in MVR evaporation systems, and more specifically, to a vibration conveying and cooling device for end-of-line crystallization salt in MVR evaporation systems. Background Technology

[0002] MVR (Mechanical Vapor Recompression) evaporation technology is a highly efficient and energy-saving evaporation and concentration technology, which is widely used in high-salt wastewater treatment, chemical crystallization, pharmaceuticals, food concentration and other fields. At the end of the MVR evaporation system, the concentrated liquid is crystallized into crystalline salt through a crystallizer. These crystalline salts usually have a high temperature and contain a small amount of mother liquor. They need to go through processes such as transportation, cooling and drying before entering the packaging or subsequent processing stages.

[0003] Traditional methods for cooling crystalline salt typically employ screw conveyors combined with jacketed water or air cooling. However, existing technologies suffer from the following problems: First, crystalline salt is prone to agglomeration during transport, especially when the salt particles are fine or the humidity is high, leading to severe agglomeration and potential blockage of the transport pipes. Second, traditional conveying devices exhibit uneven cooling, with crystalline salt near the pipe wall cooling faster than that in the center, resulting in uneven temperature distribution. Third, the conveying device cannot adjust the conveying angle and vibration amplitude according to the size of the crystalline salt particles, exhibiting poor adaptability.

[0004] Chinese patent CN207956852U discloses a vibration conveying and cooling device, but its vibration mechanism is rigidly connected to the conveying pipe, the vibration frequency and amplitude are not adjustable, and it cannot perform online crushing of agglomerated salt. Therefore, this invention proposes a vibration conveying and cooling device for crystallized salt at the end of an MVR evaporation system, which can realize the linkage adjustment of conveying angle, vibration frequency and crushing degree to adapt to the conveying and cooling needs of crystallized salt with different particle sizes. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention aims to provide a vibration conveying and cooling device for crystalline salt at the end of an MVR evaporation system. A driving component moves a toothed plate and rotating gears, which in turn drive a gear and a rotating disk to rotate. This causes the extrusion blocks on the rotating disk to intermittently lift and lower fasteners, resulting in periodic deflection and vibration of the conveying pipe. This vibration conveying method causes the crystalline salt to continuously tumble inside the pipe, ensuring full contact with the pipe wall, significantly improving cooling efficiency and temperature uniformity. The triangular grooves on the surface of the extrusion blocks generate high-frequency micro-vibrations during contact, further enhancing the vibration effect of the conveying pipe.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A vibration conveying and cooling device for end crystallized salt in an MVR evaporation system includes a base, the top of which extends upward to form an arc-shaped limiting plate, and a conveying pipe is rotatably connected inside the arc-shaped limiting plate.

[0008] A bamboo-joint tube is fixedly connected to the left side of the conveying pipe, and a driving mechanism is provided on the top left side of the base. The driving mechanism includes a movable seat that is slidably connected to the top of the base. A driving component is fixedly connected to the right side of the movable seat. A movable plate is slidably connected to the top of the driving component. A toothed plate is fixedly connected to the left end of the movable plate. Multiple equally spaced rotating teeth are rotatably connected inside the toothed plate.

[0009] Furthermore, a gear is provided at the front end of the movable seat, and a rotating rod is fixedly connected inside the gear. Both ends of the rotating rod pass through the movable seat and are rotatably connected to the movable seat.

[0010] Furthermore, a rotating disk is fixedly connected to the portion of the rotating rod exposed outside the movable seat. An extrusion block is arranged in a circular array at the edge of the rotating disk. The extrusion block is integrally formed with the rotating disk, and multiple triangular grooves are formed on the arc-shaped surface of the extrusion block.

[0011] Furthermore, the surface of the conveying pipe is fitted with a plurality of upper fasteners, and the bottom of the upper fasteners is fixedly connected to a lower fastener.

[0012] Furthermore, a first telescopic rod is fixedly connected to the inside left side of the movable seat, and a first connecting rod is fixedly connected to the output shaft end of the first telescopic rod. The top of the first connecting rod is rotatably connected to the lower fastener, and the toothed plate has multiple receiving grooves inside to accommodate the rotation of the rotating teeth.

[0013] Furthermore, a rolling mechanism is provided on the top of the driving component. The rolling mechanism includes a second telescopic rod fixedly connected to the moving plate, and a third connecting rod is rotatably connected to the output shaft end of the second telescopic rod.

[0014] Furthermore, a rotating cylinder is rotatably connected to the surface of the conveying pipe, and an inclined groove is provided at the bottom of the rotating cylinder to accommodate the movement of the third connecting rod. A second connecting rod is fixedly connected to the top of the inner wall of the rotating cylinder, and a rotating groove is provided at the top of the conveying pipe to accommodate the rotation of the second connecting rod. A pressure plate is fixedly connected to the bottom of the second connecting rod.

[0015] Furthermore, the rotating tooth and the tooth plate are connected by a combination of a rotating shaft and a torsion spring.

[0016] Furthermore, the cross-sectional shape of the pressure plate is formed by splicing two circular arcs, and the distance from the middle of the pressure plate to both ends of the conveying pipe gradually increases.

[0017] Furthermore, the movable seat can move horizontally on top of the base to adjust the distance between the extrusion block and the lower fastener, and the bamboo tube is a flexible metal hose.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] This solution uses a driving component to move the toothed plate and rotating teeth, which in turn drives the gears and rotating disk to rotate. This causes the extrusion blocks on the rotating disk to intermittently lift the fasteners, resulting in periodic deflection and vibration of the conveying pipe. This vibration conveying method causes the crystallized salt to tumble continuously inside the pipe and make full contact with the pipe wall, significantly improving cooling efficiency and temperature uniformity. The triangular grooves on the surface of the extrusion blocks generate high-frequency micro-vibrations during the contact process, further enhancing the vibration effect of the conveying pipe.

[0020] This solution, by setting a movable base, can adjust the initial distance between the extrusion block and the lower fastener, thereby controlling the deflection angle of the conveying pipe. When conveying large-particle crystalline salt, the deflection angle is reduced to prolong the residence time of the material in the pipe and allow for sufficient cooling. When conveying small-particle crystalline salt, the deflection angle is increased to enhance the vibration amplitude and conveying capacity. The adaptive adjustment function enables the device to adapt to the conveying requirements of crystalline salt with different particle sizes, making it highly versatile.

[0021] This design incorporates a unidirectional transmission structure in the drive mechanism, allowing the rotating gear to retract within the receiving groove. This prevents the gear from rotating in the opposite direction during the return stroke of the moving plate, ensuring that the conveying pipe only deflects when the moving plate extends. During the return stroke, the conveying pipe smoothly resets under the guidance of the first telescopic rod, thus ensuring the unidirectional reciprocating characteristics of the conveying pipe's vibration and avoiding the impact of disordered vibration on the conveying stability.

[0022] This solution connects the movement of the moving plate with the crushing mechanism through a linkage mechanism. When the moving plate moves to adjust the conveying angle, the second telescopic rod synchronously drives the third connecting rod to move, driving the rotating drum and the pressure plate to rotate. This changes the distance between the pressure plate and the bottom of the conveying pipe, realizing the linkage adjustment between the conveying angle and the crushing degree. When the particles are large, the distance between the pressure plates increases and the crushing force decreases; when the particles are small, the distance between the pressure plates decreases and the crushing force increases. This effectively prevents the clogging of the pipeline by agglomerated salt and avoids excessive powder due to over-crushing, thus effectively preventing agglomeration. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the vibration conveying and cooling device of the present invention;

[0024] Figure 2 This is a schematic diagram of the drive mechanism of the present invention;

[0025] Figure 3 This is a side view of the drive mechanism of the present invention;

[0026] Figure 4 This is a top view of the drive mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the toothed plate of the present invention;

[0028] Figure 6 This is a schematic diagram of the compaction mechanism of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the pressure plate of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the rotating cylinder of the present invention;

[0031] Figure 9 This is a side sectional view of the rotating cylinder of the present invention.

[0032] Explanation of the labels in the diagram:

[0033] 1. Conveying pipe; 11. Bamboo joint pipe; 12. Upper fastener; 121. Lower fastener; 13. Rotating groove; 2. Base; 21. Arc-shaped limiting plate; 3. Drive mechanism; 31. Moving seat; 32. Drive component; 321. Moving plate; 322. Toothed plate; 323. Rotating tooth; 324. Receiving groove; 33. Rotating disk; 331. Extrusion block; 332. Triangular groove; 34. First telescopic rod; 341. First connecting rod; 35. Gear; 351. Rotating rod; 4. Rolling mechanism; 41. Rotating cylinder; 411. Inclined groove; 42. Second connecting rod; 43. Pressure plate; 44. Second telescopic rod; 441. Third connecting rod. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1 to 9 A vibration conveying and cooling device for end crystallized salt in an MVR evaporation system includes a base 2, with an arc-shaped limiting plate 21 extending upward from the top of the base 2. A conveying pipe 1 is rotatably connected inside the arc-shaped limiting plate 21. A bamboo joint pipe 11 is fixedly connected to the left side of the conveying pipe 1. The bamboo joint pipe 11 is connected to the end discharge port of the MVR evaporation system. High-temperature crystallized salt falls into the interior of the conveying pipe 1 through the bamboo joint pipe 11. The conveying pipe 1 conveys the crystallized salt to the right. During the conveying process, cooling water or cooling air is introduced into the jacket of the pipe wall to cool the crystallized salt.

[0036] A drive mechanism 3 is provided on the top left side of the base 2. The drive mechanism 3 includes a movable seat 31 slidably connected to the top of the base 2. A drive component 32 is fixedly connected to the right side of the movable seat 31. The drive component 32 is a linear motor. A movable plate 321 is slidably connected to the top of the drive component 32. The drive component 32 drives the movable plate 321 to move back and forth. A toothed plate 322 is fixedly connected to the left end of the movable plate 321. Multiple equally spaced rotating teeth 323 are rotatably connected inside the toothed plate 322 through a rotating shaft and a torsion spring. When the movable plate 321 moves, it drives the rotating teeth 323 to move synchronously.

[0037] A gear 35 is provided at the front end of the movable seat 31. A rotating rod 351 is fixedly connected inside the gear 35. Both ends of the rotating rod 351 pass through the movable seat 31 and are rotatably connected to the movable seat 31 through bearings. When the movable plate 321 moves to the left, the rotating tooth 323 meshes with the gear 35, driving the gear 35 to rotate clockwise. The rotating rod 351 drives the rotating disk 33 to rotate clockwise synchronously. When the movable plate 321 returns to the right, the rotating tooth 323 contacts and is squeezed against the tooth tip of the gear 35. The rotating tooth 323 overcomes the torsion spring force and rotates into the receiving groove 324, thereby preventing the driving gear 35 from reversing. After the rotating tooth 323 passes through, it resets under the action of the torsion spring and waits for the next extension.

[0038] The edge of the rotating disk 33 is provided with extrusion blocks 331 arranged in a ring array. The extrusion blocks 331 are integrally formed with the rotating disk 33, and multiple triangular grooves 332 are opened on their arc-shaped surfaces.

[0039] Multiple upper fasteners 12 are fitted on the surface of the conveying pipe 1. The bottom of the upper fasteners 12 is fixedly connected to the lower fasteners 121. When the rotating disk 33 rotates, the pressing block 331 pushes the bottom of the leftmost lower fastener 121 upward in sequence, causing it to move upward, thereby driving the conveying pipe 1 to deflect upward around the fulcrum of the arc-shaped limiting plate 21. After the pressing block 331 passes, the conveying pipe 1 falls back to its original position under the action of gravity. The triangular groove 332 makes intermittent contact during the contact process, causing the conveying pipe 1 to generate high-frequency micro-vibration.

[0040] A first telescopic rod 34 is fixedly connected to the inside left side of the movable seat 31. A first connecting rod 341 is fixedly connected to the output shaft end of the first telescopic rod 34. The top of the first connecting rod 341 is rotatably connected to the lower fastener 121. When the lower fastener 121 moves upward, the first connecting rod 341 drives the output end of the first telescopic rod 34 to extend upward. After the extrusion block 331 passes through, the downward pulling force or guiding action of the first telescopic rod 34 helps the conveying pipe 1 to return to its original position smoothly and prevent impact.

[0041] The movable seat 31 can move horizontally on the top of the base 2, changing the horizontal distance between the extrusion block 331 and the lower fastener 121. The closer the distance, the greater the amplitude of the extrusion block 331 lifting the lower fastener 121, and the greater the deflection angle of the conveying pipe 1. The farther the distance, the smaller the deflection angle. The operator adjusts the position of the movable seat 31 according to the size of the crystallized salt particles: decrease the deflection angle for large particles and increase the deflection angle for small particles.

[0042] A rolling mechanism 4 is provided on the top of the driving component 32. The rolling mechanism 4 includes a second telescopic rod 44 fixedly connected to the moving plate 321. A third connecting rod 441 is rotatably connected to the output shaft end of the second telescopic rod 44. A rotating cylinder 41 is rotatably connected to the surface of the conveying pipe 1. An inclined groove 411 is provided at the bottom of the rotating cylinder 41. When the moving plate 321 moves, the second telescopic rod 44 moves accordingly, and the third connecting rod 441 slides in the inclined groove 411. Due to the guiding effect of the inclined groove 411, the linear motion of the third connecting rod 441 is converted into the rotational motion of the rotating cylinder 41.

[0043] A second connecting rod 42 is fixedly connected to the top of the inner wall of the rotating cylinder 41. A rotating groove 13 is opened at the top of the conveying pipe 1. The second connecting rod 42 passes through the rotating groove 13 and extends into the interior of the conveying pipe 1. A pressure plate 43 is fixedly connected to the bottom of the second connecting rod 42. When the rotating cylinder 41 rotates, it drives the second connecting rod 42 and the pressure plate 43 to rotate synchronously. The cross-sectional shape of the pressure plate 43 is composed of two arcs spliced ​​together. The distance between its surface and the bottom of the conveying pipe 1 gradually increases from the middle to both ends.

[0044] When the movable seat 31 is adjusted to the large particle position, the stroke of the movable plate 321 also changes accordingly, causing the second telescopic rod 44 to drive the rotating cylinder 41 to rotate to the middle of the pressure plate 43 corresponding to the bottom of the conveying pipe 1. At this time, the crushing force on the agglomerated salt is relatively small, which is suitable for conveying large particles. When the movable seat 31 is adjusted to the small particle position, the stroke of the movable plate 321 increases, and the rotation angle of the rotating cylinder 41 is larger, so that the edge of the pressure plate 43 corresponds to the bottom of the conveying pipe 1, the crushing force increases, which is suitable for conveying small particles, thus realizing the adjustment of the conveying angle and the degree of crushing.

[0045] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system, comprising a base (2), characterized in that: The top of the base (2) extends upward to form an arc-shaped limiting plate (21), and the inside of the arc-shaped limiting plate (21) is rotatably connected to a conveying pipe (1). A bamboo tube (11) is fixedly connected to the left side of the conveying pipe (1). A driving mechanism (3) is provided on the top left side of the base (2). The driving mechanism (3) includes a movable seat (31) slidably connected to the top of the base (2). A driving component (32) is fixedly connected to the right side of the movable seat (31). A movable plate (321) is slidably connected to the top of the driving component (32). A toothed plate (322) is fixedly connected to the left end of the movable plate (321). Multiple equidistant rotating teeth (323) are rotatably connected inside the toothed plate (322).

2. The vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 1, characterized in that: The front end of the movable seat (31) is provided with a gear (35), and a rotating rod (351) is fixedly connected inside the gear (35). Both ends of the rotating rod (351) pass through the movable seat (31) and are rotatably connected to the movable seat (31).

3. The vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 2, characterized in that: The rotating rod (351) is fixedly connected to a rotating disk (33) on the part exposed outside the movable seat (31). The edge of the rotating disk (33) is provided with extrusion blocks (331) arranged in a ring array. The extrusion blocks (331) are integrally formed with the rotating disk (33). The arc surface of the extrusion blocks (331) is provided with multiple triangular grooves (332).

4. The vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 3, characterized in that: The surface of the conveying pipe (1) is fitted with a plurality of upper fasteners (12), and the bottom of the upper fasteners (12) is fixedly connected with a lower fastener (121).

5. A vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 4, characterized in that: The movable seat (31) is fixedly connected to the left side of the interior with a first telescopic rod (34), and the output shaft end of the first telescopic rod (34) is fixedly connected to a first connecting rod (341). The top of the first connecting rod (341) is rotatably connected to the lower fastener (121). The toothed plate (322) has multiple receiving grooves (324) inside to accommodate the rotation of the rotating tooth (323).

6. The vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 5, characterized in that: The top of the drive unit (32) is provided with a rolling mechanism (4), which includes a second telescopic rod (44) fixedly connected to the moving plate (321), and a third connecting rod (441) is rotatably connected to the output shaft end of the second telescopic rod (44).

7. A vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 6, characterized in that: The surface of the conveying pipe (1) is rotatably connected to a rotating cylinder (41). The bottom of the rotating cylinder (41) is provided with an inclined groove (411) to accommodate the movement of the third connecting rod (441). The top of the inner wall of the rotating cylinder (41) is fixedly connected to a second connecting rod (42). The top of the conveying pipe (1) is provided with a rotating groove (13) to accommodate the rotation of the second connecting rod (42). The bottom of the second connecting rod (42) is fixedly connected to a pressure plate (43).

8. A vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 7, characterized in that: The rotating tooth (323) and the tooth plate (322) are connected by a combination of a rotating shaft and a torsion spring.

9. A vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 8, characterized in that: The cross-sectional shape of the pressure plate (43) is formed by splicing two circular arcs, and the distance from the middle of the pressure plate (43) to the two ends of the conveying pipe (1) gradually increases.

10. A vibration conveying and cooling device for end-crystallized salt in an MVR evaporation system according to claim 9, characterized in that: The movable seat (31) can move horizontally on the top of the base (2) to adjust the distance between the compression block (331) and the lower fastener (121), and the bamboo tube (11) is a flexible metal hose.

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