Mother liquor low-temperature drying crystallizer capable of being uniformly heated

Abstract

The mother liquor low-temperature drying crystallizer comprises a crystallization cavity and a cavity door arranged on the upper side of the crystallization cavity, a discharging opening is formed in the lower end of the crystallization cavity, the mother liquor low-temperature drying crystallizer further comprises a first limiting rod installed on the outer side of the cavity door, a liquid inlet is formed in the cavity door, a sealing rubber ring is arranged on the lower side of the cavity door, and a second limiting rod is installed on the outer side of the cavity door. A servo motor is arranged on the upper side of the cavity door, a first supporting rod is connected to the lower end of the servo motor, a stirring frame is arranged on the lower side of the first supporting rod, a second supporting rod is arranged in the stirring frame, and a valve is arranged in the discharging opening. According to the mother liquor low-temperature drying crystallizer capable of being uniformly heated, heating is more uniform in the working process, mother liquor crystallization is uniform, the crystallization product quality is more stable, meanwhile, mother liquor stirring is facilitated, the flow rate of mother liquor in the device is increased, the crystallization efficiency of the device is improved, and a better crystallization effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of crystallizers, in particular to a mother liquid low-temperature drying crystallizer capable of being heated uniformly. Background Art

[0002] The mother liquor low temperature drying crystallizer is a device specially used for processing high concentration liquids. It plays an important role in many industrial fields such as chemical, pharmaceutical, and food. It mainly uses low temperature drying technology to make the solute in the high concentration liquid crystallize out. It combines heating, distillation, slag discharge, and drainage to effectively achieve liquid concentration and solute purification, such as:

[0003] The authorization announcement number CN116077975B provides a crystallizer, including a shell, a fixed plate is fixedly connected inside the shell, a condensation plate is fixedly connected to the top of the fixed plate, a connecting pipe is fixedly connected to the top of the condensation plate, and a circulation slot is opened inside the condensation plate. By installing the fixed plate, the condensation plate and the connecting pipe, the entire crystallization process is completely controlled inside the shell, the material can be crystallized quickly, and human intervention is reduced to avoid the harm of the material to the human body. By installing the top rotating device, the normal circulation of the coolant or gas inside the circulation slot can be guaranteed during the rotation of the fixed plate, which ensures the continuous production of the equipment and improves the production efficiency. At the same time, the crystal can be filtered in three stages, so that the filtered crystal particles are easy to collect and transport, avoiding the trouble of separate screening of traditional materials after crystallization, and improving the production efficiency.

[0004] The above-mentioned prior art solutions have the following defects: the current mother liquor low-temperature drying crystallizer is heated too unevenly during operation, which makes the mother liquor crystallize unevenly, resulting in unstable quality of the crystallized product. At the same time, it is inconvenient to stir the mother liquor, resulting in a decrease in the flow rate of the mother liquor inside the device, resulting in a decrease in the crystallization efficiency of the device. Therefore, the present invention provides a mother liquor low-temperature drying crystallizer that can be heated evenly to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a mother liquor low-temperature drying crystallizer that can be heated evenly, so as to solve the problem raised in the above background technology that the mother liquor is heated too unevenly during operation, resulting in uneven crystallization of the mother liquor, leading to unstable quality of the crystallized product, and it is inconvenient to stir the mother liquor, resulting in a decrease in the flow rate of the mother liquor inside the device, resulting in a decrease in the crystallization efficiency of the device.

[0006] To achieve the above object, the present invention provides the following technical solution: a mother liquid low temperature drying crystallizer capable of being uniformly heated, comprising: a crystallization chamber, and a chamber door arranged on the upper side of the crystallization chamber, and a discharge port is provided at the lower end of the crystallization chamber, and further comprising:

[0007] A first limiting rod is installed on the outer side of the chamber door, a liquid inlet is provided inside the chamber door, and a sealing rubber ring is provided on the lower side of the chamber door, a servo motor is provided on the upper side of the chamber door, and the lower end of the servo motor is connected to the first support rod, a stirring frame is provided on the lower side of the first support rod, and a second support rod is provided inside the stirring frame, a valve is provided inside the discharge port, a constant temperature plate is provided on the outer side of the crystallization chamber, and a first support frame is provided on the outer side of the constant temperature plate, an annular temperature control tube is provided inside the first support frame, and a support block is provided on the upper side of the first support frame, a connecting component is provided inside the support block, and a second support frame is provided on the upper side of the support block.

[0008] Preferably, the connecting assembly comprises a connecting rod installed on the outside of the supporting block, a limiting block is arranged on the inner side of the connecting rod, and a guiding rod is arranged on the outer side of the limiting block.

[0009] Preferably, the connecting rod is threadedly connected to the limiting block, and the limiting block is snap-fitted to the first supporting frame.

[0010] Preferably, the limit block and the guide rod are arranged to slide relative to each other, and the guide rod is arranged symmetrically up and down about the central axis of the limit block.

[0011] Preferably, the first limiting rod is threadedly connected to the chamber door and the crystallization chamber, and the first limiting rod is symmetrically arranged about the central axis of the chamber door.

[0012] Preferably, the stirring frame is relatively engaged with the first support rod, and the second support rods are arranged at equal intervals inside the stirring frame.

[0013] Preferably, the constant temperature plate is arranged to be relatively engaged with the crystallization chamber.

[0014] Preferably, the annular temperature control tube is evenly arranged inside the first support frame, and the first support frame and the support block are relatively engaged with each other.

[0015] Preferably, a second limiting rod is provided at the lower end of the second support frame, a second support rod is provided inside the second support frame, a preset groove is opened inside the second support rod, and a support base is provided at the lower end of the second support rod.

[0016] Preferably, the second limiting rod and the second support frame and the second support rod are all threadedly arranged relative to each other, and the preset grooves are arranged at equal intervals inside the second support rod, and the second support rod and the second support frame are slidably arranged relative to each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the mother liquor low-temperature drying crystallizer that can be evenly heated is heated more evenly during operation, so that the mother liquor is evenly crystallized, and the quality of the crystallized product is more stable. At the same time, it is convenient to stir the mother liquor, so that the flow rate of the mother liquor inside the device is increased, the crystallization efficiency of the device is improved, and a better crystallization effect is achieved, as shown in the following content:

[0018] 1. The mother liquid inside the device is evenly heated by the annular temperature control tube and the constant temperature plate, so that the mother liquid inside the crystallization chamber is heated more evenly, so that the crystal can obtain a stable heat supply during the growth process, ensuring the quality and stability of the crystal, and helping to avoid defects, deformation or uneven color of the crystal;

[0019] Furthermore, the limit block is driven to move outward by the connecting rod in cooperation with the guide rod, so that the limit block relaxes the limit on the first support frame, making it easier for operators to disassemble and repair the first support frame and the annular temperature control pipe, reducing the time and labor costs required for disassembly and installation, thereby improving the maintenance efficiency of the equipment.

[0020] 2. The mother liquor in the crystallization chamber is stirred by the first support rod in conjunction with the stirring rack, so that the temperature distribution of the mother liquor in the device is more uniform, thereby improving the crystallization rate and efficiency, and making the crystal size distribution more uniform, which can not only improve product quality but also reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic diagram of a top view of a cross-sectional structure of the connection between the second support rod and the stirring frame of the present invention;

[0024] Figure 4 It is a schematic diagram of a top view cross-sectional structure of the connection between the first support frame and the annular temperature control tube of the present invention;

[0025] Figure 5 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. crystallization chamber; 2. chamber door; 3. first limit rod; 4. sealing rubber ring; 5. liquid inlet; 6. servo motor; 7. first support rod; 8. stirring frame; 9. second support rod; 10. discharge port; 11. valve; 12. constant temperature plate; 13. support block; 14. connecting assembly; 1401. connecting rod; 1402. limit block; 1403. guide rod; 15. first support frame; 16. annular temperature control tube; 17. second support frame; 18. second limit rod; 19. second support rod; 20. preset groove; 21. support base. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-5 The present invention provides a technical solution: a mother liquid low temperature drying crystallizer capable of being heated uniformly, comprising: a crystallization chamber 1, and a chamber door 2 arranged on the upper side of the crystallization chamber 1, and a discharge port 10 is provided at the lower end of the crystallization chamber 1, and further comprising:

[0029] A first limiting rod 3 is installed on the outer side of the chamber door 2, a liquid inlet 5 is opened inside the chamber door 2, and a sealing rubber ring 4 is arranged on the lower side of the chamber door 2, a servo motor 6 is arranged on the upper side of the chamber door 2, and the lower end of the servo motor 6 is connected to a first support rod 7, a stirring frame 8 is arranged on the lower side of the first support rod 7, and a second support rod 9 is arranged inside the stirring frame 8, a valve 11 is arranged inside the discharge port 10, a constant temperature plate 12 is arranged on the outer side of the crystallization chamber 1, and a first support frame 15 is arranged on the outer side of the constant temperature plate 12, an annular temperature control tube 16 is arranged inside the first support frame 15, and a support block 13 is arranged on the upper side of the first support frame 15, a connecting assembly 14 is arranged inside the support block 13, and a second support frame 17 is arranged on the upper side of the support block 13, forming a complete mother liquor low-temperature drying crystallizer.

[0030] like Figure 1 and Figure 5As shown, the connecting assembly 14 includes a connecting rod 1401 installed on the outside of the support block 13, and a limit block 1402 is arranged on the inner side of the connecting rod 1401, and a guide rod 1403 is arranged on the outer side of the limit block 1402, the connecting rod 1401 is relatively threadedly connected with the limit block 1402, and the limit block 1402 is relatively engaged with the first support frame 15, the limit block 1402 and the guide rod 1403 are relatively slidably arranged, and the guide rod 1403 is symmetrically arranged about the central axis of the limit block 1402, and needs to be moved after use. When the annular temperature control tube 16 is to be disassembled and maintained, the connecting rod 1401 is rotated so that the connecting rod 1401 drives the limit block 1402 to move outward along the guide rod 1403 to relax the restriction on the first support frame 15. At this time, the first support frame 15 is taken out from the lower side to complete the disassembly of the first support frame 15 and the annular temperature control tube 16, reducing the time and labor costs required for disassembly and installation, thereby improving the maintenance efficiency of the equipment, reducing production losses caused by equipment downtime, and further reducing maintenance costs.

[0031] like Figure 1 and Figure 3 As shown, the first limit rod 3 is relatively threadedly connected to the chamber door 2 and the crystallization chamber 1, and the first limit rod 3 is symmetrically arranged about the central axis of the chamber door 2, the stirring frame 8 is relatively engaged with the first support rod 7, and the second support rod 9 is evenly spaced inside the stirring frame 8, and the mother liquor is poured into the interior of the crystallization chamber 1 through the liquid inlet 5. At this time, the servo motor 6 drives the first support rod 7 to rotate inside the crystallization chamber 1, so that the first support rod 7 drives the stirring frame 8 to rotate inside the crystallization chamber 1. At this time, the stirring frame 8 cooperates with the second support rod 9 to stir the mother liquor, thereby completing the adjustment of the mother liquor flow rate, improving the heat transfer rate, and making the mother liquor temperature distribution more uniform, thereby improving the crystallization rate and crystallization efficiency. At the same time, the crystal particle size distribution can be made more uniform, which can not only improve the product quality, but also be beneficial to the subsequent separation and purification operations and reduce energy consumption.

[0032] like Figure 1 , Figure 3 and Figure 4As shown, the constant temperature plate 12 is relatively engaged with the crystallization chamber 1, the annular temperature control tube 16 is evenly arranged inside the first support frame 15, and the first support frame 15 is relatively engaged with the support block 13. The device is heated and temperature-controlled by the annular temperature control tube 16. At this time, the constant temperature plate 12 absorbs the temperature emitted by the annular temperature control tube 16. At the same time, due to the material properties of the constant temperature plate 12, the temperature of each angle of the constant temperature plate 12 is always in a balanced state. At this time, the constant temperature plate 12 conducts heat energy to the inside of the device, so that the mother liquid inside the device is heated more evenly, so that the crystal can obtain a stable heat supply during the growth process, thereby ensuring the quality and stability of the crystal, helping to avoid defects, deformation or uneven color of the crystal, improving the quality of the crystal, and helping to reduce energy consumption, reduce production costs, improve overall production capacity, reduce damage to the device caused by thermal stress, help reduce equipment failure rate, extend the service life of the equipment, and reduce the company's maintenance and replacement costs.

[0033] like Figure 1 and Figure 2 and Figure 3 As shown, a second limiting rod 18 is provided at the lower end of the second support frame 17, and a second support rod 19 is provided inside the second support frame 17, and a preset groove 20 is opened inside the second support rod 19, and a support base 21 is provided at the lower end of the second support rod 19, the second limiting rod 18 and the second support frame 17 and the second support rod 19 are all arranged with threads relative to each other, and the preset grooves 20 are arranged at equal intervals inside the second support rod 19, and the second support rod 19 and the second support frame 17 are arranged to slide relative to each other. Before the device is used, the support adjustment of the device needs to be performed, and the second limiting rod 18 is rotated to relax the limiting of the second support rod 19. At this time, the device is pulled upward. The second support rod 19 is arranged so that the second support rod 19 slides inside the second support frame 17, and the second limit rod 18 is rotated when the specified height is reached, so that the second limit rod 18 is connected in series with the second support frame 17 and the second support rod 19, thereby completing the adjustment of the support height of the device, so that the device can adapt to the application requirements in different scenarios, and the height of the equipment can be adjusted to facilitate operation, cleaning and maintenance, improve the versatility and flexibility of the equipment, and provide convenience for the maintenance and overhaul of the device. When the device fails or needs to be overhauled, the operator can adjust the support height to make the device easier to approach and operate, which helps to reduce the difficulty of maintenance and overhaul, improve maintenance efficiency, and reduce maintenance costs.

[0034] Working principle: When using the mother liquid low-temperature drying crystallizer that can be heated evenly, the device needs to be supported and adjusted before use. By rotating the second limit rod 18, the second limit rod 18 relaxes the limit on the second support rod 19. At this time, the device is pulled upward to make the second support rod 19 slide inside the second support frame 17. When the specified height is reached, the second limit rod 18 is rotated to make the second limit rod 18 connected in series with the second support frame 17 and the second support rod 19, thereby completing the adjustment of the support height of the device, so that the device can adapt to the application requirements in different scenarios;

[0035] Secondly, the mother liquid is poured into the crystallization chamber 1 through the liquid inlet 5. At this time, the annular temperature control tube 16 heats and controls the temperature of the device. At this time, the constant temperature plate 12 absorbs the temperature emitted by the annular temperature control tube 16. At the same time, due to the material characteristics of the constant temperature plate 12, the temperature of each angle of the constant temperature plate 12 is always in a balanced state. At this time, the constant temperature plate 12 conducts heat energy to the inside of the device, so that the mother liquid in the device is heated more evenly, so that the crystal can obtain a stable heat supply during the growth process, thereby ensuring the quality and stability of the crystal, helping to avoid defects, deformation or uneven color of the crystal, and improving the quality of the crystal;

[0036] At the same time, the first support rod 7 is driven by the servo motor 6 to rotate inside the crystallization chamber 1, so that the first support rod 7 drives the stirring frame 8 to rotate inside the crystallization chamber 1. At this time, the stirring frame 8 cooperates with the second support rod 9 to stir the mother liquor, thereby increasing the heat transfer rate and making the solution temperature distribution more uniform, thereby increasing the crystallization rate and crystallization efficiency, and making the crystal size distribution more uniform, which can not only improve the product quality, but also facilitate the subsequent separation and purification operations, reduce energy consumption, and open the valve 11 so that the crystallized mother liquor and crystals are discharged to the device through the discharge port 10;

[0037] Then, after the device is finished using, it is necessary to inspect and maintain the first support frame 15 and the annular temperature control tube 16. By rotating the connecting rod 1401, the connecting rod 1401 drives the limit block 1402 to move outward along the guide rod 1403 to relax the restriction on the first support frame 15. At this time, the first support frame 15 is taken out to the lower side to complete the disassembly of the first support frame 15 and the annular temperature control tube 16, reducing the time and labor costs required for disassembly and installation, thereby improving the maintenance efficiency of the equipment, reducing production losses caused by equipment downtime, further reducing maintenance costs, facilitating the next use of the device, and increasing the service life of the device. This is the method of using the mother liquor low-temperature drying crystallizer that can be evenly heated.

[0038] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 should be included in the protection scope of the present invention.

Claims

1. A mother liquid low temperature drying crystallizer capable of being uniformly heated, comprising: A crystallization chamber (1), and a chamber door (2) arranged on the upper side of the crystallization chamber (1), and a discharge port (10) is opened at the lower end of the crystallization chamber (1), characterized in that it also includes: A first limiting rod (3) is installed on the outer side of the chamber door (2); a liquid inlet (5) is provided inside the chamber door (2); a sealing rubber ring (4) is provided on the lower side of the chamber door (2); a servo motor (6) is provided on the upper side of the chamber door (2); a first supporting rod (7) is connected to the lower end of the servo motor (6); a stirring frame (8) is provided on the lower side of the first supporting rod (7); a second supporting rod (9) is provided inside the stirring frame (8); the discharge port (10 ) is provided with a valve (11) inside, a constant temperature plate (12) is provided on the outside of the crystallization chamber (1), and a first support frame (15) is provided on the outside of the constant temperature plate (12), an annular temperature control pipe (16) is provided inside the first support frame (15), and a support block (13) is provided on the upper side of the first support frame (15), a connecting component (14) is provided inside the support block (13), and a second support frame (17) is provided on the upper side of the support block (13).

2. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 1, characterized in that: The connection assembly (14) comprises a connection rod (1401) installed on the outside of the support block (13), a limit block (1402) is arranged on the inside of the connection rod (1401), and a guide rod (1403) is arranged on the outside of the limit block (1402).

3. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 2, characterized in that: The connecting rod (1401) and the limiting block (1402) are threadedly connected relative to each other, and the limiting block (1402) and the first supporting frame (15) are relatively engaged with each other.

4. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 2, characterized in that: The limit block (1402) and the guide rod (1403) are arranged to slide relative to each other, and the guide rod (1403) is arranged symmetrically up and down about the central axis of the limit block (1402).

5. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 1, characterized in that: The first limiting rod (3) is threadedly connected to the chamber door (2) and the crystallization chamber (1), and the first limiting rod (3) is disposed symmetrically with respect to the central axis of the chamber door (2).

6. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 1, characterized in that: The stirring frame (8) is arranged in relative engagement with the first support rod (7), and the second support rods (9) are arranged at equal intervals inside the stirring frame (8).

7. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 1, characterized in that: The constant temperature plate (12) is arranged to be relatively engaged with the crystallization chamber (1).

8. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 1, characterized in that: The annular temperature control tube (16) is evenly arranged inside the first support frame (15), and the first support frame (15) and the support block (13) are relatively engaged with each other.

9. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 1, characterized in that: A second limiting rod (18) is arranged at the lower end of the second support frame (17), a second support rod (19) is arranged inside the second support frame (17), a preset groove (20) is opened inside the second support rod (19), and a support base (21) is arranged at the lower end of the second support rod (19).

10. The mother liquid low temperature drying crystallizer capable of being uniformly heated according to claim 9, characterized in that: The second limiting rod (18) and the second support frame (17) and the second support rod (19) are all arranged in a threaded manner relative to each other, and the preset grooves (20) are arranged at equal intervals inside the second support rod (19), and the second support rod (19) and the second support frame (17) are arranged to slide relative to each other.

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