Automatic 2-ethyl anthraquinone crystallization separator

Abstract

The automatic 2-ethyl anthraquinone crystallization separator comprises a crystallization separation kettle, the left side and the right side of the upper end of the crystallization separation kettle are both communicated with feeding exhaust guide pipes, a stirring motor is arranged in the center of the upper end of the crystallization separation kettle, and the lower end of the stirring motor is rotationally connected with a stirring mechanism; the stirring mechanism is rotationally connected into the crystallization separation kettle and consists of a rotating shaft and a plurality of stirring blades, the upper side of the outer part of the crystallization separation kettle is sleeved with a heating sleeve, and an evaporation chamber, a liquid storage chamber, a cooling chamber, a filtering chamber and a collecting chamber are sequentially arranged in the crystallization separation kettle and are communicated with one another to form a complete crystallization separation process. The separation continuity and efficiency are improved, filtered crystals fall into the collection chamber through the collection through holes and can be subjected to follow-up treatment through the guide-out pipe, filtered liquid is guided into the evaporation chamber again through the backflow guide pipe to be subjected to circulating purification and separation, the solution utilization rate and yield are improved, and emission pollution is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field related to 2-ethylanthraquinone production, and particularly relates to an automated 2-ethylanthraquinone crystallization separator. Background Art

[0002] As an important chemical raw material, 2-ethylanthraquinone is widely used in the fields of dyes, medicine, etc. In the prior art, the crystallization separation of 2-ethylanthraquinone usually adopts traditional separation methods, which have many problems.

[0003] Traditional crystallization separation processes often require multiple independent devices to perform heating evaporation, cooling crystallization, and filtration steps separately. This not only occupies a large equipment footprint but is also prone to losses and contamination during material transfer, reducing production efficiency and product quality. Furthermore, traditional methods can suffer from insufficient evaporation and incomplete impurity removal during the heating evaporation process, affecting the purity of 2-ethylanthraquinone. During the cooling crystallization step, the cooling rate is slow and the crystallization effect is suboptimal, resulting in unstable product yield and quality. Furthermore, the filtration process suffers from low filtration efficiency, which prevents the effective separation of 2-ethylanthraquinone crystals and makes continuous production difficult.

[0004] In addition, the traditional method has a low utilization rate of 2-ethylanthraquinone solution and has not undergone sufficient circulation and purification, which not only causes waste of resources, but also has a significant negative impact on the environment due to the discharged waste liquid.

[0005] In order to solve the above problems, improve the crystallization separation efficiency, purity and yield of 2-ethylanthraquinone and reduce the impact on the environment, a new type of automated 2-ethylanthraquinone crystallizer is urgently needed. Utility Model Content

[0006] The purpose of the utility model is to provide an automated 2-ethylanthraquinone crystallizer to solve the problems proposed in the above background technology that traditional crystallization separation requires multiple independent devices to be carried out separately, which reduces production efficiency, and the traditional method has a low utilization rate of 2-ethylanthraquinone solution.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an automated 2-ethylanthraquinone crystallizer, comprising a crystallization separation kettle, wherein the left and right sides of the upper end of the crystallization separation kettle are connected to feed and exhaust ducts, a stirring motor is provided at the center of the upper end of the crystallization separation kettle, the lower end of the stirring motor is rotatably connected to a stirring mechanism, and the stirring mechanism is rotatably connected to the inside of the crystallization separation kettle, the stirring mechanism is composed of a rotating shaft and a plurality of stirring blades, a heating jacket is sleeved on the upper side of the outer side of the crystallization separation kettle, a derivation pipe is connected at the center of the lower end of the crystallization separation kettle, and a plurality of support legs are fixedly connected to the outer side of the lower end of the crystallization separation kettle.

[0008] Preferably, an evaporation chamber is provided inside the upper end of the crystallization separation kettle and is connected to two feed and exhaust ducts, and multiple stirring blades of the stirring mechanism are rotatably connected to the inside of the evaporation chamber, the lower end of the evaporation chamber is connected to a liquid storage chamber, and the lower end of the liquid storage chamber is connected to a cooling chamber.

[0009] Preferably, the lower end of the cooling chamber is connected to a filter chamber, the lower end of the filter chamber is connected to a collection chamber, and the collection chamber is connected to the outlet pipe, and the liquid storage chamber, cooling chamber, filter chamber and collection chamber are all located inside the crystallization separation kettle.

[0010] Preferably, the right end of the liquid storage chamber is connected to a liquid inlet pipe, the front side of the center of the inner wall of the lower end of the liquid storage chamber is connected to the cooling chamber through multiple connecting holes, and the left end of the cooling chamber is connected to a liquid outlet pipe.

[0011] Preferably, a spiral cooling pipe is provided inside the cooling chamber, and the interior of the cooling pipe is not connected to the interior of the cooling chamber. The left side of the upper end of the cooling pipe is connected to the evaporation chamber through a cooling conduit, and the left side of the center of the lower end of the cooling pipe is connected to the filter chamber through a filter conduit.

[0012] Preferably, a sealing ring is rotatably connected to the interior of the upper end of the filter chamber, and a plurality of centrifugal blades are fixedly connected to the lower end of the sealing ring, and the plurality of centrifugal blades are centrally symmetrically arranged and fixedly connected to the exterior of the lower end of the rotating shaft of the stirring mechanism.

[0013] Preferably, the lower end of the sealing ring is rotatably connected to a plurality of filter rings arranged in concentric circles, and the plurality of filter rings are fixedly connected to the inner wall of the lower end of the filter chamber, and the centrifugal blade is clamped on the upper side between the plurality of filter rings through a plurality of slots and is rotatably connected to the plurality of filter rings.

[0014] Preferably, the filter ring is provided with a plurality of collecting holes on the lower side near the center end, and the plurality of collecting holes are opened inside the inner wall of the lower end of the filter chamber, the filter chamber is connected with the collection chamber through the plurality of collecting holes, the outer interior of the upper end of the filter chamber is connected with the outer interior of the lower end of the evaporation chamber through a plurality of return ducts, and the plurality of return ducts all pass upward through the liquid storage chamber and the cooling chamber.

[0015] Compared with the prior art, the present invention provides an automated 2-ethylanthraquinone crystallization separator, which has the following beneficial effects:

[0016] 1. Innovation of multi-chamber interconnected structure: The evaporation chamber, liquid storage chamber, cooling chamber, filtration chamber and collection chamber are arranged in sequence inside the crystallization separation kettle. The chambers are interconnected to form a complete crystallization separation process, which improves the continuity and efficiency of separation.

[0017] 2. Innovation in feed and exhaust design: Feed and exhaust ducts are set on the left and right sides of the upper end of the crystallization separation kettle, one for feed pipe and the other for exhaust pipe, to achieve convenient introduction of 2-ethylanthraquinone solution and effective discharge of evaporated gas, providing good feed and exhaust channels for the crystallization separation process.

[0018] 3. Innovation in stirring, heating and evaporation: The stirring mechanism is set in the crystallization separation kettle. Multiple stirring blades stir the 2-ethylanthraquinone solution in the evaporation chamber. At the same time, the heating jacket is used to heat the solution, so that the solution evaporates quickly, impurities are removed, and the purity of 2-ethylanthraquinone is improved.

[0019] 4. Innovation in cooling tube structure: A spiral cooling tube is set inside the cooling chamber. 2-ethylanthraquinone concentrated liquid is introduced into the cooling tube through the cooling conduit. The coolant in the liquid storage chamber flows in the gap between the cooling tubes, achieving rapid cooling and crystallization and improving crystallization efficiency.

[0020] 5. Innovation in centrifugal filtration structure: The lower end of the rotating shaft of the stirring mechanism is connected to multiple centrifugal blades, which rotate in the filter chamber to generate suction, sucking in the crystallized liquid in the cooling tube and rotating it out, filtering it through multiple filter rings to improve filtration efficiency and effect.

[0021] 6. Innovation in the design of the sealing ring: The sealing ring is fixed above the centrifugal blade to seal the space between the upper outer wall of the filter ring and the upper inner wall of the filter chamber, preventing the crystallization liquid from flowing directly to the outside of the filter chamber and ensuring that the crystallization liquid is fully filtered.

[0022] 7. Innovation in circulation purification mode: The filtered crystals fall into the collection chamber through the collection hole and can be subsequently processed by the outlet pipe. The filtered liquid is re-introduced into the evaporation chamber through the reflux conduit for circulation purification and separation, thereby improving solution utilization and output and reducing emission pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the 2-ethylanthraquinone crystal separator of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the 2-ethylanthraquinone crystal separator of the present utility model.

[0025] Figure 3 For the utility model Figure 2 Enlarged schematic diagram of point A in the middle.

[0026] Figure 4 This is a schematic diagram of the evaporation chamber connection structure of the present utility model.

[0027] Figure 5 This is a schematic diagram of the liquid storage chamber connection structure of the present utility model.

[0028] Figure 6This is a schematic diagram of the cooling chamber connection structure of the present utility model.

[0029] Figure 7 This is a schematic diagram of the filter chamber connection structure of the present utility model.

[0030] In the figure: 1. Crystallization separation kettle; 2. Feed and exhaust duct; 3. Stirring motor; 4. Stirring mechanism; 5. Heating jacket; 6. Outlet pipe; 7. Support leg; 8. Evaporation chamber; 9. Liquid storage chamber; 10. Cooling chamber; 11. Filter chamber; 12. Collection chamber; 13. Liquid inlet pipe; 14. Connecting hole; 15. Liquid outlet pipe; 16. Cooling pipe; 17. Cooling duct; 18. Filter duct; 19. Blocking ring; 20. Centrifugal blade; 21. Filter ring; 22. Collection hole; 23. Reflux duct. DETAILED DESCRIPTION

[0031] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] The utility model provides Figure 1-Figure 7 The automated 2-ethylanthraquinone crystallization separator shown includes a crystallization separation kettle 1, wherein the left and right sides of the upper end of the crystallization separation kettle 1 are connected to feed and exhaust ducts 2, a stirring motor 3 is provided at the center of the upper end of the crystallization separation kettle 1, and the lower end of the stirring motor 3 is rotatably connected to a stirring mechanism 4, and the stirring mechanism 4 is rotatably connected to the interior of the crystallization separation kettle 1, and the stirring mechanism 4 is composed of a rotating shaft and a plurality of stirring blades. A heating jacket 5 is sleeved on the upper side of the outer side of the crystallization separation kettle 1, and an outlet pipe 6 is connected to the center of the lower end of the crystallization separation kettle 1. A plurality of support legs 7 are fixedly connected to the outer side of the lower end of the crystallization separation kettle 1. In the process of crystallizing and separating the 2-ethylanthraquinone solution, since one of the two feed and exhaust ducts 2 is a feed pipe and the other is an exhaust pipe, the 2-ethylanthraquinone solution can be introduced into the interior of the crystallization separation kettle 1 through the feed pipe, and heated, evaporated, cooled, crystallized and centrifuged inside the crystallization separation kettle 1, thereby separating the 2-ethylanthraquinone, and the separated 2-ethylanthraquinone can be discharged through the outlet pipe 6 for subsequent processing.

[0033] Preferably, an evaporation chamber 8 is provided inside the upper end of the crystallization separation kettle 1, and is communicated with the two feed exhaust pipes 2, and a plurality of stirring blades of the stirring mechanism 4 are rotatably connected to the inside of the evaporation chamber 8, and the lower end of the evaporation chamber 8 is communicated with a liquid storage chamber 9, and the lower end of the liquid storage chamber 9 is communicated with a cooling chamber 10, and the lower end of the cooling chamber 10 is communicated with a filter chamber 11, and the lower end of the filter chamber 11 is communicated with a collecting chamber 12, and the collecting chamber 12 is communicated with the outlet pipe 6. The liquid storage chamber 9, the cooling chamber 10, the filter chamber 11 and the collecting chamber 12 are all located inside the crystallization separation kettle 1. In the process of heating and evaporating 2-ethyl anthraquinone, 2-ethyl anthraquinone is fed into the crystallization separation kettle through the feed pipe. The solution is introduced into the evaporation chamber 8, and the 2-ethylanthraquinone solution in the evaporation chamber 8 is heated by the stirring mechanism 4. At the same time, the stirring motor 3 drives the stirring mechanism 4 to rotate, and the 2-ethylanthraquinone solution in the evaporation chamber 8 is stirred by the multiple stirring blades of the stirring mechanism 4, so that the 2-ethylanthraquinone solution in the evaporation chamber 8 can be quickly evaporated, and impurities such as unreacted raw materials, by-products and solvents in the evaporation chamber 8 are removed, and low-boiling point impurities are volatilized, thereby improving the purity of the 2-ethylanthraquinone. The evaporated gas can be discharged through the exhaust pipe for further treatment, thereby obtaining a concentrated solution of 2-ethylanthraquinone.

[0034] Preferably, the right end of the liquid storage chamber 9 is connected to a liquid inlet pipe 13, the front side of the center of the inner wall of the lower end of the liquid storage chamber 9 is connected to the cooling chamber 10 through a plurality of connecting holes 14, the left end of the cooling chamber 10 is connected to a liquid outlet pipe 15, and a spiral cooling pipe 16 is provided inside the cooling chamber 10, and the interior of the cooling pipe 16 is not connected to the interior of the cooling chamber 10, and the left side of the upper end of the cooling pipe 16 is connected to the evaporation chamber 8 through a cooling conduit 17. During the cooling crystallization process of the 2-ethyl anthraquinone concentrated solution, the 2-ethyl anthraquinone concentrated solution is introduced into the spiral cooling pipe 16 through the cooling conduit 17, thereby 2-ethyl anthraquinone is cooled. The quinone concentrated liquid is introduced into the cooling chamber 10. Since the cooling chamber 10 is connected to the interior of the liquid storage chamber 9 through a plurality of connecting holes 14, and a coolant is provided inside the liquid storage chamber 9 and is introduced through the liquid inlet pipe 13 connected at the right end, the coolant inside the liquid storage chamber 9 can be introduced into the cooling chamber 10 through the plurality of connecting holes 14, and flow inside the gaps of the spirally arranged cooling pipe 16, and finally discharged from the liquid outlet pipe 15 connected at the left end of the cooling chamber 10, so that the 2-ethylanthraquinone concentrated liquid can be rapidly cooled and crystallized inside the cooling chamber 10 through the cooling pipe 16, thereby obtaining a 2-ethylanthraquinone crystal liquid.

[0035] Preferably, the left side of the center of the lower end of the cooling tube 16 is connected to the filter chamber 11 through a filter duct 18, and a sealing ring 19 is rotatably connected to the interior of the upper end of the filter chamber 11. The lower end of the sealing ring 19 is fixedly connected to a plurality of centrifugal blades 20, and the plurality of centrifugal blades 20 are symmetrically arranged and fixedly connected to the outside of the lower end of the rotating shaft of the stirring mechanism 4. The lower end of the sealing ring 19 is rotatably connected to a plurality of filter rings 21 arranged in concentric circles, and the plurality of filter rings 21 are fixedly connected to the inner wall of the lower end of the filter chamber 11, and the centrifugal blades 20 are clamped on the upper side between the plurality of filter rings 21 through a plurality of card slots and are rotatably connected to the plurality of filter rings 21. During the centrifugal filtration of the 2-ethylanthraquinone crystal solution, since the rotating shaft of the stirring mechanism 4 passes through the liquid storage chamber 9 and the cooling chamber 10 and is connected to the interior of the filter chamber 11, and is connected to the plurality of centrifugal blades 20, the plurality of centrifugal blades 20 can pass through the stirring mechanism. The stirring motor 3 and the stirring mechanism 4 drive the rotation, and the multiple centrifugal blades 20 rotate inside the filter chamber 11 to generate suction, and the 2-ethylanthraquinone crystal liquid inside the cooling tube 16 is sucked into the center of the filter chamber 11 through the filter duct 18. At the same time, the sucked 2-ethylanthraquinone crystal liquid drives the 2-ethylanthraquinone crystal liquid to rotate inside the filter chamber 11 and is thrown out to the inside and outside of the filter chamber 11. The 2-ethylanthraquinone crystal liquid thrown to the inside and outside of the filter chamber 11 can be filtered through the multiple filter rings 21, and the blocking ring 19 can block the upper outer wall of the multiple filter rings 21 and the upper inner wall of the filter chamber 11 to prevent the 2-ethylanthraquinone crystal liquid from flowing directly to the inside and outside of the filter chamber 11, ensuring that the 2-ethylanthraquinone crystal liquid can be filtered, thereby filtering out the 2-ethylanthraquinone crystals and blocking them at one end near the center of the multiple filter rings 21, and the filtered liquid is thrown out to the inside and outside of the filter chamber 11.

[0036] Preferably, a plurality of collecting holes 22 are provided on the lower side of the filter ring 21 near the center end, and the plurality of collecting holes 22 are opened inside the inner wall of the lower end of the filter chamber 11, and the filter chamber 11 is connected with the collection chamber 12 through the plurality of collecting holes 22, and the outer interior of the upper end of the filter chamber 11 is connected with the outer interior of the lower end of the evaporation chamber 8 through a plurality of reflux pipes 23, and the plurality of reflux pipes 23 all penetrate upward into the liquid storage chamber 9 and the cooling chamber 10, and the filtered 2-ethylanthraquinone crystals can fall into the collection chamber 12 through the plurality of collecting holes 22 for collection, and finally be introduced through the outlet pipe 6 for subsequent treatment, and the filtered liquid thrown to the inside and outside of the filter chamber 11 can be introduced into the evaporation chamber 8 again through the plurality of reflux pipes 23 for reheating and evaporation, and then cooled, crystallized and centrifugally filtered, so that the 2-ethylanthraquinone solution can be circulated, purified and separated, which can not only improve the utilization rate of the 2-ethylanthraquinone solution and increase the output, but also reduce emission pollution and reduce the negative impact on the environment.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated 2-ethylanthraquinone crystallizer, characterized in that: The invention comprises a crystallization separation kettle (1), wherein both left and right sides of the upper end of the crystallization separation kettle (1) are connected to a feed exhaust duct (2), a stirring motor (3) is provided at the center of the upper end of the crystallization separation kettle (1), a stirring mechanism (4) is rotatably connected to the lower end of the stirring motor (3), and the stirring mechanism (4) is rotatably connected to the inside of the crystallization separation kettle (1), the stirring mechanism (4) is composed of a rotating shaft and a plurality of stirring blades, a heating jacket (5) is sleeved on the upper side of the outer side of the crystallization separation kettle (1), a dewatering pipe (6) is connected to the center of the lower end of the crystallization separation kettle (1), and a plurality of supporting legs (7) are fixedly connected to the outer side of the lower end of the crystallization separation kettle (1).

2. The automated 2-ethylanthraquinone crystallizer according to claim 1, characterized in that: An evaporation chamber (8) is provided inside the upper end of the crystallization separation kettle (1) and is communicated with two feeding and exhaust pipes (2), and a plurality of stirring blades of a stirring mechanism (4) are rotatably connected to the inside of the evaporation chamber (8), the lower end of the evaporation chamber (8) is communicated with a liquid storage chamber (9), and the lower end of the liquid storage chamber (9) is communicated with a cooling chamber (10).

3. The automated 2-ethylanthraquinone crystallizer according to claim 2, characterized in that: The lower end of the cooling chamber (10) is connected to a filter chamber (11), the lower end of the filter chamber (11) is connected to a collection chamber (12), and the collection chamber (12) is connected to the outlet pipe (6). The liquid storage chamber (9), the cooling chamber (10), the filter chamber (11) and the collection chamber (12) are all located inside the crystallization separation kettle (1).

4. The automated 2-ethylanthraquinone crystallizer according to claim 3, characterized in that: The right end of the liquid storage chamber (9) is connected to a liquid inlet pipe (13), the front side of the center of the inner wall of the lower end of the liquid storage chamber (9) is connected to the cooling chamber (10) through multiple connecting holes (14), and the left end of the cooling chamber (10) is connected to a liquid outlet pipe (15).

5. The automated 2-ethylanthraquinone crystallizer according to claim 4, characterized in that: A spiral cooling pipe (16) is provided inside the cooling chamber (10), and the interior of the cooling pipe (16) is not connected to the interior of the cooling chamber (10). The left side of the upper end of the cooling pipe (16) is connected to the evaporation chamber (8) through a cooling conduit (17), and the left side of the center of the lower end of the cooling pipe (16) is connected to the filter chamber (11) through a filter conduit (18).

6. The automated 2-ethylanthraquinone crystallizer according to claim 5, characterized in that: A sealing ring (19) is rotatably connected to the interior of the upper end of the filter chamber (11), and a plurality of centrifugal blades (20) are fixedly connected to the lower end of the sealing ring (19), and the plurality of centrifugal blades (20) are centrally symmetrically arranged and fixedly connected to the exterior of the lower end of the rotating shaft of the stirring mechanism (4).

7. The automated 2-ethylanthraquinone crystallizer according to claim 6, characterized in that: The lower end of the blocking ring (19) is rotatably connected to a plurality of filter rings (21) arranged in a concentric circle, and the plurality of filter rings (21) are fixedly connected to the inner wall of the lower end of the filter chamber (11). The centrifugal blade (20) is clamped on the upper side between the plurality of filter rings (21) through a plurality of clamping grooves and is rotatably connected to the plurality of filter rings (21).

8. The automated 2-ethylanthraquinone crystallizer according to claim 7, characterized in that: The filter ring (21) is provided with a plurality of collecting through holes (22) on the lower side near one end of the center, and the plurality of collecting through holes (22) are opened inside the inner wall of the lower end of the filter chamber (11), the filter chamber (11) is connected with the collecting chamber (12) through the plurality of collecting through holes (22), the outer interior of the upper end of the filter chamber (11) is connected with the outer interior of the lower end of the evaporation chamber (8) through a plurality of return ducts (23), and the plurality of return ducts (23) all penetrate upward into the liquid storage chamber (9) and the cooling chamber (10).

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