MVR (mechanical vapor recompression) low-temperature concentration and crystallization equipment

Abstract

The utility model relates to the technical field of evaporative crystallization, in particular to MVR (mechanical vapor recompression) low-temperature concentration and crystallization equipment. A heating box is fixed at the bottom end of the inner side of the mounting groove; a heat preservation layer is fixed on the inner side of the heating box; a heat conduction pipe is fixed in the heat preservation layer; heat conduction plates are uniformly distributed and fixed on the inner side of the heat preservation layer, and the interiors of the heat conduction plates are fixedly connected with the heat conduction pipe; a heater is fixed to the outer side of the heating box, the output end of the heater is fixedly connected with the heat conduction pipe, a protection block is fixed to the top end of the operation table, sliding blocks are slidably connected to the two sides of the top end of the protection block, crystallization barrels are clamped to the top ends of the sliding blocks, and an adjusting mechanism used for driving the crystallization barrels to move is arranged in the protection block. According to the MVR low-temperature concentration and crystallization equipment provided by the utility model, the high-temperature crystallization barrel is driven by the adjusting mechanism to move to a position which is convenient to operate, so that the risk that a worker is scalded is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation crystallization, in particular to an MVR low-temperature concentration crystallization device. Background Art

[0002] "MVR" is mechanical vapor compression technology, which is an energy recovery technology used in the distillation process. MVR technology is widely used in seawater desalination, wastewater treatment, salt making, emulsion concentration and distillation. In the product manufacturing process, steam concentration, evaporation crystallization, low-temperature evaporation and other processes are required. The concentration and crystallization of the solution are mostly achieved by industrial steam.

[0003] For example, the patent (CN213790053U) discloses an evaporation crystallization device, including a first box, the top of the first box is open, a support frame is installed on the bottom inner wall of the first box, and a heating plate is fixed on the top of the support frame, heating tubes are arranged at equal distances inside the heating plate, and a crystallization barrel is placed on the top of the heating plate, two electric push rods are installed on both sides of the first box, and a second box is installed on the top of the electric push rod, and a mounting frame is welded on one inner wall of the second box. The utility model is realized by a waterproof motor and a stirring rod, and the solution is continuously stirred during the heating process, which is convenient for evaporating the water in the solution, and the steam is discharged through the ventilation fan and micro holes, which speeds up the air circulation rate above the liquid, improves the evaporation of the solution, shortens the crystallization time, and separates the first box and the second box through the electric push rod, and takes out the crystallization barrel after separation.

[0004] When using the above technology, it was found that the following technical problems exist in the prior art: During processing, the prior art requires workers to take the crystallization cylinder out of the evaporation box. Since the crystallization cylinder is heavy, it is more laborious for workers to take it out, which increases the labor intensity of the workers and also poses a risk of scalding. For this reason, we designed an MVR low-temperature concentration crystallization equipment to provide another technical solution to the above technical problems. Utility Model Content

[0005] Based on this, it is necessary to provide an MVR low-temperature concentration crystallization equipment to address the above technical problems. The liquid is poured into the interior of the crystallization cylinder, and the heat pipe and the heat conduction plate are driven to heat through the output end of the heater, while the bottom end of the crystallization cylinder is in contact with the heat conduction plate, thereby improving the thermal conductivity of the crystallization cylinder. When the extraction crystal is inside the crystallization cylinder, the crystallization cylinder is moved to a position that is convenient for operation through an adjusting mechanism, thereby reducing the involvement of the device staff. Since a large amount of high temperature is generated on the surface of the crystallization cylinder, the risk of scalding to personnel is prevented through the adjusting mechanism.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An MVR low-temperature concentration crystallization device comprises an operating table, wherein an installation groove is provided at one end inside the operating table, a heating box is fixed to the bottom end inside the installation groove, a heat-insulating layer is fixed to the inside of the heating box, a heat-conducting pipe is fixed inside the heat-insulating layer, heat-conducting plates are evenly fixed to the inside of the heat-insulating layer, the inside of the heat-conducting plates is fixedly connected to the heat-conducting pipe, a heater is fixed to the outside of the heating box, the output end of the heater is fixedly connected to the heat-conducting pipe, a protective block is fixed to the top of the operating table, sliders are slidably connected to both sides of the top of the protective block, a crystallization cylinder is clamped on the top of the slider, and an adjustment mechanism for driving the crystallization cylinder to move is arranged inside the protective block.

[0008] As a preferred embodiment of the MVR low-temperature concentration and crystallization equipment provided by the utility model, the adjustment mechanism includes a threaded rod, and there are two threaded rods. Both sides of the inside of the protection block are rotatably connected with threaded rods, and one end of the outer side of the threaded rod is fixed with an A bevel gear, and the ends of the two A bevel gears close to each other are meshed and connected with a B bevel gear, and the ends of the two B bevel gears close to each other are fixed with a transmission rod, the outer side of the transmission rod is rotatably connected to the protection block, and a servo motor is fixed at one end of the protection block, and the output end of the servo motor passes through the protection block and is fixed to one of the threaded rods.

[0009] As a preferred embodiment of the MVR low-temperature concentration crystallization equipment provided by the utility model, a moving mechanism for sealing the crystallization cylinder is provided at one end of the top of the operating table, and the moving mechanism includes a guide rod, and there are two guide rods. Guide rods are fixed on both sides of one end of the top of the operating table, and a support block is fixed on the top of the guide rod. The outer side of the guide rod is slidably connected with a cylinder cover, and the bottom end of the cylinder cover is sealed and slidably connected with the crystallization cylinder.

[0010] As a preferred embodiment of the MVR low-temperature concentration crystallization equipment provided by the utility model, an electric push rod is fixed to the bottom end of the cylinder cover, the output end of the electric push rod is fixed to the cylinder cover, and an electronic valve is arranged on the top end of the cylinder cover.

[0011] As a preferred embodiment of the MVR low-temperature concentration crystallization equipment provided by the utility model, the heat conduction plate is made of aluminum-copper alloy material, heat carrier oil is arranged in the heating box, and the heat conduction pipe is S-shaped.

[0012] As a preferred embodiment of the MVR low-temperature concentration and crystallization equipment provided by the utility model, a sealing gasket is fixed to the edge of the bottom end of the cylinder cover.

[0013] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0014] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0015] The utility model provides an MVR low-temperature concentration crystallization device, which heats the heat carrier oil through the output end of the heater, keeps the heat to continuously provide heat to the heat conduction plate and the crystallization cylinder, and drives the high-temperature crystallization cylinder to move to a position convenient for operation through an adjustment mechanism, thereby avoiding the risk of scalding of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the protective block of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the threaded rod and the slider of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal structure of the heating box of the utility model.

[0021] In the figure: 1. operating table; 2. servo motor; 3. protective block; 4. guide rod; 5. threaded rod; 6. transmission rod; 7. B bevel gear; 8. A bevel gear; 9. slider; 10. crystallization cylinder; 11. heater; 12. electric push rod; 13. heating box; 14. heat pipe; 15. insulation layer; 16. heat conduction plate; 17. support block; 18. cylinder cover. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] Embodiment 1

[0027] Reference Figure 1-Figure 4 A MVR low-temperature concentration crystallization device comprises an operating table 1, an installation groove is provided at one end of the operating table 1, a heating box 13 is fixed to the bottom end of the inner side of the installation groove, a heat preservation layer 15 is fixed to the inner side of the heating box 13, a heat conduction pipe 14 is fixed to the inner side of the heat preservation layer 15, heat conduction plates 16 are evenly fixed to the inner side of the heat preservation layer 15, the inner side of the heat conduction plate 16 is fixedly connected to the heat conduction pipe 14, a heater 11 is fixed to the outer side of the heating box 13, the output end of the heater 11 is fixedly connected to the heat conduction pipe 14, a protective block 3 is fixed to the top of the operating table 1, sliders 9 are slidably connected to both sides of the top of the protective block 3, a crystallization cylinder 10 is clamped to the top of the slider 9, and an adjusting mechanism for driving the crystallization cylinder 10 to move is provided inside the protective block 3,

[0028] By pouring liquid into the interior of the crystallization cylinder 10, the heat pipe 14 and the heat conducting plate 16 are driven to heat through the output end of the heater 11, and the bottom end of the crystallization cylinder 10 is in contact with the heat conducting plate 16, thereby improving the heat conduction effect of the crystallization cylinder 10. When the crystallization inside the crystallization cylinder 10 is extracted and crystallized, the crystallization cylinder 10 is moved to a position that is convenient for operation through the adjustment mechanism, thereby reducing the participation of the staff of the device. Because a large amount of high temperature is generated on the surface of the crystallization cylinder 10, the risk of scalding of the staff is prevented through the adjustment mechanism.

[0029] The adjustment mechanism includes a threaded rod 5, and there are two threaded rods 5. Both sides of the inside of the protection block 3 are rotatably connected with the threaded rods 5. An A bevel gear 8 is fixed to one end of the outer side of the threaded rod 5. The ends of the two A bevel gears 8 close to each other are meshed and connected with a B bevel gear 7. The ends of the two B bevel gears 7 close to each other are fixed with a transmission rod 6. The outer side of the transmission rod 6 is rotatably connected with the protection block 3. A servo motor 2 is fixed to one end of the protection block 3. The output end of the servo motor 2 passes through the protection block 3 and is fixed to one of the threaded rods 5.

[0030] One of the threaded rods 5 is driven to rotate by the output end of the servo motor 2, so that one of the threaded rods 5 drives the B bevel gear 7, the transmission rod 6 and the A bevel gear 8 to rotate synchronously, and one of the threaded rods 5 drives another threaded rod 5 to rotate synchronously, so that the threaded rod 5 drives the slider 9 and the crystallization cylinder 10 to slide;

[0031] A moving mechanism for sealing the crystallization cylinder 10 is provided at one end of the top of the operating table 1, and the moving mechanism includes a guide rod 4, and there are two guide rods 4. The guide rods 4 are fixed on both sides of the top end of the operating table 1, and a support block 17 is fixed on the top of the guide rod 4. A cylinder cover 18 is slidably connected to the outer side of the guide rod 4, and the bottom end of the cylinder cover 18 is sealed and slidably connected to the crystallization cylinder 10. An electric push rod 12 is fixed to the bottom end of the cylinder cover 18, and the output end of the electric push rod 12 is fixed to the cylinder cover 18. An electronic valve is provided on the top of the cylinder cover 18. When the liquid inside the crystallization cylinder 10 is heated, the heat inside the crystallization cylinder 10 is prevented from being lost quickly. The cylinder cover 18 is driven to seal with the crystallization cylinder 10 through the output end of the electric push rod 12, thereby improving the efficiency of liquid extraction inside the crystallization cylinder 10. When a large amount of hot steam is generated inside the crystallization cylinder 10, the hot steam is sensed and discharged through the electronic valve;

[0032] The heat conducting plate 16 is made of aluminum-copper alloy to improve the heat conducting effect of the device. Heat carrier oil is arranged in the heating box 13. The heat conducting pipe 14 is surrounded in an S shape. A sealing gasket is fixed to the edge of the bottom end of the tube cover 18.

[0033] The use process of the MVR low-temperature concentration crystallization device provided by the utility model is as follows: when in use, liquid is poured into the interior of the crystallization cylinder 10, and the heat pipe 14 and the heat carrier oil are heated by starting the crystallization cylinder 10, and the heat conduction plate 16 conducts heat to the bottom end of the crystallization cylinder 10, and then the liquid inside the crystallization cylinder 10 is extracted, and the heat carrier oil can continuously heat the heat conduction plate 16 to reduce the heat loss of the device;

[0034] When crystals need to be extracted from the inside of the crystallization cylinder 10, one of the threaded rods 5 is driven to rotate through the output end of the servo motor 2, and one of the threaded rods 5 drives the A bevel gear 8, the B bevel gear 7 and the transmission rod 6 to rotate synchronously, thereby driving the two threaded rods 5 to rotate synchronously, and the threaded rod 5 drives the slider 9 and the crystallization cylinder 10 to reciprocate, thereby reducing the participation of the staff and avoiding the risk of scalding of the staff, thereby improving the practicality of the device;

[0035] The output end of the electric push rod 12 drives the cylinder cover 18 to seal with the top of the crystallization cylinder 10, thereby improving the liquid extraction effect and avoiding heat loss.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A MVR low temperature concentration crystallization equipment, characterized in that: The invention comprises an operating table (1), wherein one end of the operating table (1) is provided with an installation groove, a heating box (13) is fixed at the bottom end of the inner side of the installation groove, a heat-insulating layer (15) is fixed at the inner side of the heating box (13), a heat-conducting pipe (14) is fixed at the inner side of the heat-insulating layer (15), heat-conducting plates (16) are evenly fixed at the inner side of the heat-insulating layer (15), the inner side of the heat-conducting plates (16) is fixedly connected to the heat-conducting pipe (14), a heater (11) is fixed at the outer side of the heating box (13), the output end of the heater (11) is fixedly connected to the heat-conducting pipe (14), a protective block (3) is fixed at the top end of the operating table (1), both sides of the top end of the protective block (3) are slidably connected to sliders (9), the top end of the slider (9) is clamped with a crystallization tube (10), and an adjusting mechanism for driving the crystallization tube (10) to move is arranged inside the protective block (3).

2. The MVR low-temperature concentration and crystallization equipment according to claim 1, characterized in that: The adjustment mechanism comprises a threaded rod (5), wherein there are two threaded rods (5), both sides of the interior of the protection block (3) are rotatably connected with the threaded rods (5), an A bevel gear (8) is fixed to one end of the outer side of the threaded rod (5), and the ends of the two A bevel gears (8) close to each other are meshingly connected with the B bevel gear (7), and the ends of the two B bevel gears (7) close to each other are fixed with a transmission rod (6), the outer side of the transmission rod (6) is rotatably connected with the protection block (3), a servo motor (2) is fixed to one end of the protection block (3), and the output end of the servo motor (2) passes through the protection block (3) and is fixed to one of the threaded rods (5).

3. The MVR low-temperature concentration and crystallization equipment according to claim 1, characterized in that: A movable mechanism for sealing the crystallization cylinder (10) is provided at one end of the top of the operating table (1), and the movable mechanism comprises a guide rod (4), and the guide rods (4) are two in number. A guide rod (4) is fixed on both sides of one end of the top of the operating table (1), and a support block (17) is fixed at the top of the guide rod (4). A cylinder cover (18) is slidably connected to the outer side of the guide rod (4), and the bottom end of the cylinder cover (18) is sealed and slidably connected to the crystallization cylinder (10).

4. The MVR low-temperature concentration and crystallization equipment according to claim 3, characterized in that: An electric push rod (12) is fixed to the bottom end of the cylinder cover (18), an output end of the electric push rod (12) is fixed to the cylinder cover (18), and an electronic valve is arranged at the top end of the cylinder cover (18).

5. The MVR low-temperature concentration and crystallization equipment according to claim 1, characterized in that: The heat conducting plate (16) is made of an aluminum-copper alloy material, a heat carrier oil is arranged in the heating box (13), and the heat conducting pipe (14) is S-shaped and surrounds.

6. The MVR low-temperature concentration and crystallization equipment according to claim 4, characterized in that: A sealing gasket is fixed on the rim of the bottom end of the cylinder cover (18).

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