Heating and vacuum concentration equipment for magnesium sulfate solution

Abstract

The utility model discloses magnesium sulfate solution heating and vacuum concentration equipment, which relates to the technical field of magnesium sulfate solution processing and comprises a concentration tank, a support rod and a movable base are arranged at the bottom end of the concentration tank, and a spiral heating pipe is fixedly mounted in the concentration tank; a driving motor is fixedly mounted at the top end of the concentration tank, an output shaft at the bottom end of the driving motor is fixedly connected with a middle shaft, the outer side of the middle shaft is rotationally connected with a rotating ring and connecting bent rods on the two sides of the rotating ring, and stirring blades are fixedly connected to the middle shaft and the two connecting bent rods; the outer side of the top of the middle shaft is provided with a reverse rotation assembly for driving the rotating ring to rotate reversely. According to the magnesium sulfate solution heating and vacuum concentration equipment, the driving motor drives the middle shaft to rotate, and the rotating ring, the connecting bent rod and the reverse rotating assembly are arranged on the outer side of the middle shaft, so that the reverse stirring effect of two groups of stirring blades on the connecting bent rod and the middle shaft can be realized, and the sufficient and uniform degree of solution stirring is improved, so that the transpiration concentration efficiency is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesium sulfate solution processing, in particular to a magnesium sulfate solution heating and decompression concentration device. Background Art

[0002] Magnesium sulfate is a commonly used chemical reagent and drying reagent. It is a colorless or white crystal or powder. It is clinically used for catharsis, choleretics, anticonvulsants, eclampsia, tetanus, hypertension and other diseases. It can also be used for leather making, explosives, papermaking, porcelain, fertilizers, etc. In medicine, magnesium sulfate is used to prepare protective ointments, laxatives, analgesics, and antidotes; in the microbial industry, it is used as a culture medium component, brewing additive, and nutrient source during fermentation; in food additives, it is used as a nutritional supplement, curing agent, flavor enhancer, and processing aid. In the production and manufacturing of magnesium sulfate solution, but the existing ones still have certain defects when used;

[0003] For example, a vacuum concentration equipment for producing sodium acetate solution with announcement number CN213965184U makes heating more uniform by setting a spiral heating tube, and generates axial force by setting a slant-blade stirring impeller, so that the material liquid is heated more uniformly, and the arc-shaped stirring blade is set to stir the material liquid at the bottom of the concentration tank without dead angles, and cooperates with the slant-blade stirring impeller to make the material liquid stirred more uniformly; by integrating the concentration tank, vapor-liquid separator, condenser, liquid receiving tank, etc. on the bottom plate, and cooperating with wheels, it is more convenient to install and carry; the condenser is a graphite heat exchanger, which has good corrosion resistance, the heat transfer surface is not easy to scale, and the heat transfer performance is good; the outer wall of the first air guide pipe is provided with an insulation layer to keep the steam discharged from the concentration tank warm;

[0004] In actual use, this type of concentration equipment uses a motor to drive the stirring blade to stir the solution in the tank so that it can be more exposed to the spiral heating tube for heating and evaporation. However, the single-axis stirring method is relatively simple and cannot make the solution evenly and fully heated, which leads to the concentration efficiency of the magnesium sulfate solution being not high enough.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original equipment. Therefore, we proposed a magnesium sulfate solution heating and decompression concentration equipment that can solve the above problems well. Utility Model Content

[0006] The utility model aims to provide a magnesium sulfate solution heating and decompression concentration device to solve the problem that the concentration device proposed in the above background technology, in actual use, uses a motor to drive a stirring blade to stir the solution in a tank body so that it can be more exposed to a spiral heating tube for heating and evaporation, but the single-axis stirring method is relatively simple and cannot make the solution evenly and fully heated, thereby resulting in the problem that the concentration efficiency of the magnesium sulfate solution is not high enough.

[0007] To achieve the above object, the utility model provides the following technical solution: a magnesium sulfate solution heating and decompression concentration device, comprising a concentration tank, a mobile base is arranged at the bottom of the concentration tank, a plurality of support rods are fixedly connected between the concentration tank and the mobile base, and a spiral heating tube is fixedly installed inside the concentration tank;

[0008] A driving motor is fixedly installed on the top of the concentration tank, and the bottom output shaft of the driving motor passes through the interior of the concentration tank and is fixedly connected to the central axis. A rotating ring is rotatably connected to the outer side of the central axis, and the side walls on both sides of the rotating ring are fixedly connected to symmetrically distributed connecting bent rods. Both sides of the central axis and the side walls of the two connecting bent rods are fixedly connected to a number of vertically distributed stirring blades. A reversing component that drives the rotating ring and rotates in the opposite direction to the central axis is provided on the outer side of the top of the central axis to achieve the reverse stirring effect of the connecting bent rod and the two groups of stirring blades on the central axis, thereby further improving the degree of full uniformity of stirring the solution, making the contact between the solution and the spiral heating tube more frequent, so as to accelerate the transpiration concentration efficiency;

[0009] The reversing assembly includes a fixed bevel gear fixedly connected to the top of the outer wall of the central shaft, a transmission bevel gear is meshed on one side of the bottom of the fixed bevel gear, the transmission bevel gear is limited and rotated on the outside of the fixed cross bar on the inner wall of the concentration tank, a rotating bevel gear is meshed on one side of the bottom of the transmission bevel gear, the rotating bevel gear is rotationally connected to the outside of the central shaft, and its bottom end is fixedly connected to the swivel ring, and the swivel ring and the central shaft can be driven to rotate in the opposite direction through the meshing transmission between the fixed bevel gear and the transmission bevel gear, and between the transmission bevel gear and the rotating bevel gear.

[0010] Preferably, the top of the concentration tank is located on both sides of the driving motor and is fixedly connected with a negative pressure tube and a liquid inlet pipe, and the other end of the negative pressure tube is connected to the negative pressure motor to provide a negative pressure environment for the interior of the concentration tank and accelerate the evaporation and concentration of the solution. The liquid inlet pipe is used to add magnesium sulfate solution, or to add water to the interior of the concentration tank to flush residual substances after concentration is completed, and the outer side of the liquid inlet pipe is threadedly connected with a sealing cover to ensure the airtightness of the concentration tank.

[0011] Preferably, a discharge pipe is fixedly connected to the bottom end of the concentration tank, a control valve is installed on the discharge pipe, and the control valve can facilitate the control of the discharge, and a storage box for collecting the concentrated liquid is placed at the top end of the movable base below the discharge pipe.

[0012] Preferably, a limiting ring is formed on the outer wall of the central axis, and a ring groove which matches and slides with the limiting ring is opened on the inner wall of the rotating ring. The limiting ring can limit the rotating ring to a fixed horizontal plane for axial rotation, thereby increasing the rotation stability of the connecting bent rods and stirring blades on both sides.

[0013] Preferably, the stirring blades are all inclined paddle structures, and the inclined directions of the inclined edges of the two groups of stirring blades close to each other on the central axis and the connecting bent rod are opposite to each other, so as to further enhance the diversity of solution stirring by the counter-rotating of the two groups of stirring blades.

[0014] Preferably, a protective cover is fixedly installed on the inner top of the concentrating tank through a connecting rod of the side wall, the central axis rotates on the inner side of the protective cover, and the protective cover covers the outer sides of the fixed bevel gear, the transmission bevel gear and the rotating bevel gear. The setting of the protective cover can protect the fixed bevel gear, the transmission bevel gear and the rotating bevel gear to prevent the magnesium sulfate solution from splashing onto the surface and causing corrosion and rust.

[0015] Preferably, a layer of dry cotton is fixedly bonded to the inner side of the protective cover, and the dry cotton is attached to the outside of the central axis to further absorb the solution or water entering the interior of the protective cover through the gap to ensure a dry environment inside the protective cover.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the magnesium sulfate solution heating and decompression concentration equipment can achieve the reverse stirring effect of the two groups of stirring blades connected to the bent rod and the central axis by driving the central axis to rotate through the driving motor, and setting the rotating ring on the outer side of the central axis, the connecting bent rod and the reversing assembly, thereby improving the full uniformity of the solution stirring to accelerate the transpiration concentration efficiency. The specific contents are as follows:

[0017] By setting a driving motor to drive the central axis to rotate, and setting a rotating ring on the outer side of the central axis, a connecting bent rod and a reversing assembly, the reverse stirring effect of the two sets of stirring plates connected to the bent rod and the central axis can be achieved, thereby further improving the degree of full uniformity of stirring the solution, making the contact between the solution and the spiral heating tube more frequent, so as to accelerate the transpiration concentration efficiency;

[0018] By meshing the fixed bevel gear and the transmission bevel gear, and the transmission bevel gear and the rotating bevel gear in the reversing assembly, the effect of driving the rotating ring and the central shaft to rotate in the opposite direction can be achieved when the driving motor drives the central shaft to rotate.

[0019] A negative pressure pipe and a liquid inlet pipe are arranged at the top of the concentration tank, and the other end of the negative pressure pipe is connected to a negative pressure motor to provide a negative pressure environment inside the concentration tank, thereby accelerating the evaporation and concentration of the solution. The liquid inlet pipe is used to add magnesium sulfate solution, or to add water to the inside of the concentration tank to wash away residual substances after the concentration is completed, and a sealing cover is threadedly connected to the outer side of the liquid inlet pipe to ensure the airtightness of the concentration tank.

[0020] By arranging a discharge pipe at the bottom of the concentration tank, and installing a control valve on the discharge pipe, the control valve can be used to control the discharge, and by placing a storage box under the discharge pipe, the concentrate can be collected;

[0021] By setting a protective cover on the outside of the central shaft to cover the three bevel gears, the magnesium sulfate solution can be prevented from splashing onto the surface and causing corrosion and rust. A layer of dry cotton is bonded to the inside of the protective cover to further absorb the solution or water entering the inside of the protective cover through the gap to ensure a dry environment inside the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal cutaway structure of the concentration tank of the utility model;

[0024] Figure 3 It is a schematic diagram of the internal cutaway structure of the protective cover of the utility model;

[0025] Figure 4 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the cutaway structure of the swivel of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the protective cover of the utility model.

[0028] In the figure: 1. Concentration tank; 2. Support rod; 3. Mobile base; 4. Negative pressure pipe; 5. Discharge pipe; 6. Control valve; 7. Liquid inlet pipe; 8. Sealing cover; 9. Driving motor; 10. Central axis; 11. Swivel; 12. Connecting bent rod; 13. Agitating blade; 14. Fixed bevel gear; 15. Transmission bevel gear; 16. Rotating bevel gear; 17. Limiting ring; 18. Protective cover; 19. Drying cotton; 20. Storage box; 21. Spiral heating tube. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1: Please refer to Figure 1-Figure 6The present invention provides the following technical solutions: a magnesium sulfate solution heating and decompression concentration device, comprising a concentration tank 1, a mobile base 3 is provided at the bottom end of the concentration tank 1, a plurality of support rods 2 are fixedly connected between the concentration tank 1 and the mobile base 3, a spiral heating tube 21 is fixedly installed inside the concentration tank 1, a negative pressure tube 4 and a liquid inlet tube 7 are fixedly connected to the top of the concentration tank 1, and the other end of the negative pressure tube 4 is connected to a negative pressure motor to provide a negative pressure environment for the inside of the concentration tank 1 to accelerate the evaporation and concentration of the solution, the liquid inlet tube 7 is used to add magnesium sulfate solution, or to add water to the inside of the concentration tank 1 after the concentration is completed to wash the residual substances, and the outer side of the liquid inlet tube 7 is threadedly connected with a sealing cover 8 to ensure the airtightness of the concentration tank 1, a discharge pipe 5 is fixedly connected to the bottom end of the concentration tank 1, and a control valve 6 is installed on the discharge pipe 5, and the control valve 6 can facilitate the control of the discharge, and the top of the mobile base 3 is located below the discharge pipe 5 and a storage box 20 for collecting the concentrated liquid is placed;

[0031] A driving motor 9 is fixedly installed on the top of the concentration tank 1, and the bottom output shaft of the driving motor 9 passes through the interior of the concentration tank 1 and is fixedly connected to the central axis 10. A swivel 11 is rotatably connected to the outer side of the central axis 10, and the side walls of the two sides of the swivel 11 are fixedly connected to symmetrically distributed connecting bent rods 12. Both sides of the central axis 10 and the side walls of the two connecting bent rods 12 are fixedly connected to a number of vertically distributed stirring blades 13. A reversing component for driving the swivel 11 to rotate in the opposite direction to the central axis 10 is arranged on the outer side of the top of the central axis 10, wherein a limiting ring 17 is formed on the outer wall of the central axis 10, and a ring groove matching and sliding with the limiting ring 17 is opened on the inner wall of the swivel 11, and the limiting ring 17 can be used to The rotating ring 11 is limited to a fixed horizontal plane for axial rotation, thereby increasing the rotation stability of the connecting curved rods 12 and the stirring blades 13 on both sides. By setting the reversing component, the reverse stirring effect of the connecting curved rod 12 and the two groups of stirring blades 13 on the central axis 10 can be achieved, thereby further improving the sufficient uniformity of the solution stirring, making the solution contact with the spiral heating tube 21 more frequent, so as to accelerate the transpiration concentration efficiency, and the stirring blades 13 are all inclined paddle structures, and the inclined directions of the inclined edges of the two groups of stirring blades 13 close to each other on the central axis 10 and the connecting curved rod 12 are opposite, so as to further improve the diversity of the solution stirring by the reverse rotation of the two groups of stirring blades 13. Embodiment 2

[0032] On the basis of the first embodiment, the reversing assembly includes a fixed bevel gear 14 fixedly connected to the top of the outer wall of the central axis 10, a transmission bevel gear 15 is meshed on one side of the bottom of the fixed bevel gear 14, the transmission bevel gear 15 is limited to rotate on the outside of the fixed cross bar on the inner wall of the concentration tank 1, a rotating bevel gear 16 is meshed on one side of the bottom of the transmission bevel gear 15, the rotating bevel gear 16 is rotatably connected to the outside of the central axis 10, and its bottom end is fixedly connected to the swivel 11, and the fixed bevel gear 14 and the transmission bevel gear 15, and the transmission bevel gear 15 and the rotating bevel gear 16 are meshed and transmitted in pairs, so that the swivel 11 and the central axis 10 can be driven to rotate in the opposite direction;

[0033] A protective cover 18 is fixedly installed on the inner top of the concentration tank 1 through a connecting rod of the side wall. The central axis 10 rotates on the inner side of the protective cover 18, and the protective cover 18 covers the outer sides of the fixed bevel gear 14, the transmission bevel gear 15 and the rotating bevel gear 16. The setting of the protective cover 18 can protect the fixed bevel gear 14, the transmission bevel gear 15 and the rotating bevel gear 16 to prevent the magnesium sulfate solution from splashing onto the surface and causing corrosion and rust. In addition, a layer of dry cotton 19 is fixedly bonded to the inner side of the protective cover 18, and the dry cotton 19 is attached to the outside of the central axis 10 to further absorb the solution or water entering the inside of the protective cover 18 from the gap to ensure a dry environment inside the protective cover 18.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnesium sulfate solution heating and decompression concentration device, comprising a concentration tank (1), a movable base (3) being arranged at the bottom end of the concentration tank (1), a plurality of support rods (2) being fixedly connected between the concentration tank (1) and the movable base (3), and a spiral heating tube (21) being fixedly installed inside the concentration tank (1); Features: A driving motor (9) is fixedly mounted on the top of the concentration tank (1); an output shaft at the bottom end of the driving motor (9) penetrates into the interior of the concentration tank (1) and is fixedly connected to a central shaft (10); a rotating ring (11) is rotatably connected to the outer side of the central shaft (10); symmetrically distributed connecting curved rods (12) are fixedly connected to the side walls of both sides of the rotating ring (11); a plurality of vertically distributed stirring blades (13) are fixedly connected to the side walls of both connecting curved rods (12) on both sides of the central shaft (10); and a reversing assembly for driving the rotating ring (11) and rotating in the opposite direction thereof is arranged on the outer side of the top of the central shaft (10); The reversing assembly comprises a fixed bevel gear (14) fixedly connected to the top of the outer wall of the central shaft (10); a transmission bevel gear (15) is meshed on one side of the bottom of the fixed bevel gear (14); the transmission bevel gear (15) is limitedly rotated on the outside of a fixed cross bar on the inner wall of the concentration tank (1); a rotating bevel gear (16) is meshed on one side of the bottom of the transmission bevel gear (15); the rotating bevel gear (16) is rotationally connected to the outside of the central shaft (10), and its bottom end is fixedly connected to the rotating ring (11).

2. A magnesium sulfate solution heating and decompression concentration equipment according to claim 1, characterized in that: The top end of the concentration tank (1) is located on both sides of the driving motor (9) and is fixedly connected to a negative pressure pipe (4) and a liquid inlet pipe (7); the other end of the negative pressure pipe (4) is connected to the negative pressure motor; and a sealing cover (8) is threadedly connected to the outer side of the liquid inlet pipe (7).

3. A magnesium sulfate solution heating and decompression concentration equipment according to claim 1, characterized in that: The bottom end of the concentration tank (1) is fixedly connected to a discharge pipe (5), and a control valve (6) is installed on the discharge pipe (5). A storage box (20) for collecting concentrated liquid is placed at the top end of the mobile base (3) below the discharge pipe (5).

4. A magnesium sulfate solution heating and decompression concentration equipment according to claim 1, characterized in that: A limit ring (17) is formed on the outer wall of the central shaft (10), and a ring groove that matches and slides with the limit ring (17) is formed on the inner wall of the rotating ring (11).

5. A magnesium sulfate solution heating and decompression concentration equipment according to claim 1, characterized in that: The stirring blades (13) are all of an inclined paddle type structure, and the inclined directions of the inclined edges of two adjacent groups of stirring blades (13) on the central axis (10) and the connecting curved rod (12) are opposite.

6. A magnesium sulfate solution heating and decompression concentration equipment according to claim 1, characterized in that: A protective cover (18) is fixedly mounted on the inner top of the concentration tank (1) via a connecting rod on the side wall, the central shaft (10) rotates on the inner side of the protective cover (18), and the protective cover (18) covers the outer sides of the fixed bevel gear (14), the transmission bevel gear (15) and the rotating bevel gear (16).

7. A magnesium sulfate solution heating and decompression concentration equipment according to claim 6, characterized in that: A layer of drying cotton (19) is fixedly bonded to the inner side of the protective cover (18), and the drying cotton (19) is attached to the outside of the central axis (10).

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