A new catalyst development distillation apparatus
Patent Information
- Application Number
- CN202621135707.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-25
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2036-07-25
AI Technical Summary
传统实验室蒸馏装置结构简单，仅依靠单一直管导送蒸汽，蒸汽中夹带的固体催化剂粉末、高沸点杂质无法提前分离，杂质易进入冷凝管路造成管路堵塞，还会混入收集产物内，降低产物纯度；同时普通蒸馏釜搅拌结构单一，物料受热不均易出现局部过热、结焦，蒸馏效率低；常规冷凝管路换热面积有限，蒸汽冷凝不完全，物料损耗大，多级连续分离、一体化蒸馏收集功能缺失，单次仅能少量处理物料，无法满足催化剂研发批量平行试样蒸馏检测需求
[0012] This invention achieves uniform heating of materials inside the vessel and retention of impurities in the solid catalyst through a built-in multi-stage filtration and stirring structure. Combined with a multi-stage staggered flow disturbance mechanism, it removes dust impurities carried by steam by sedimentation. Then, it is fully condensed by a variable pitch spiral condenser mechanism. The entire process of distillation, impurity separation, and condensation collection is completed in one integrated manner, reducing the mixing of product impurities, improving the purity of distillation and separation and the efficiency of material processing, and adapting to the needs of multi-batch, high-precision distillation experiments in catalyst research and development.
Smart Images
Figure CN224686298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of experimental equipment for catalyst research and development, and in particular to a novel distillation device for catalyst research and development. Background Technology
[0002] In the research and development of novel catalysts, it is necessary to distill and separate the mixture after the catalytic reaction to extract the target liquid product. The distillation and separation effect directly affects the purity of the catalyst product and the accuracy of experimental data, and is a key step in catalyst performance testing and component analysis. Traditional laboratory distillation apparatuses have a simple structure, relying solely on a single straight pipe to transport steam. Solid catalyst powder and high-boiling-point impurities entrained in the steam cannot be separated in advance. Impurities easily enter the condenser pipe, causing blockage, and may also mix into the collected product, reducing product purity. At the same time, the stirring structure of ordinary distillation kettles is simple, resulting in uneven heating of materials, which can easily lead to local overheating and coking, resulting in low distillation efficiency. Conventional condenser pipes have limited heat exchange area, resulting in incomplete steam condensation and large material loss. They lack multi-stage continuous separation and integrated distillation collection functions, and can only process small amounts of material at a time, which cannot meet the needs of batch parallel sample distillation testing in catalyst research and development.
[0003] Therefore, it is essential to provide a novel distillation apparatus for catalyst development to address the shortcomings of existing technologies. Utility Model Content
[0004] The purpose of this invention is to provide a novel distillation equipment for catalyst research and development, overcoming the shortcomings of existing technologies. This invention achieves uniform heating of materials in the vessel and retention of impurities in solid catalysts through a built-in multi-stage filtration and stirring structure. Combined with a multi-stage staggered flow disturbance mechanism, it removes dust impurities entrained in the steam by settling. Then, it is fully condensed by a variable pitch spiral condenser mechanism. The entire process of distillation, impurity separation, and condensation collection is completed in one integrated manner, reducing the mixing of product impurities, improving the purity of distillation separation and material processing efficiency, and adapting to the needs of multi-batch, high-precision distillation experiments in catalyst research and development.
[0005] The above-mentioned objectives of this utility model are achieved through the following technical means.
[0006] A novel distillation apparatus for catalyst research and development is provided, including a distillation vessel, which is covered with an electric heating component. The top of the distillation vessel has a feed inlet and a steam outlet at both ends, and the bottom of the distillation vessel has a discharge outlet. A distillation stirring mechanism is installed inside the distillation vessel. A multi-stage turbulence mechanism is connected to the steam outlet end pipe. A condensation mechanism is connected to the gas outlet end pipe of the multi-stage turbulence mechanism. A collection bottle is connected to the bottom of the condensation mechanism. The distillation stirring mechanism includes a drive motor, the output end of which is connected to a rotating main shaft. The rotating main shaft extends coaxially into the interior of the distillation vessel. Two sets of conical filter screens are fitted and installed in the middle of the rotating main shaft. A bottom stirring paddle is installed at the bottom of the rotating main shaft. A stirring rod is installed on the rotating main shaft between the bottom stirring paddle and the conical filter screen.
[0007] Specifically, the multi-stage turbulence mechanism includes a sealed connecting cylinder, inside which several staggered turbulence plates are installed alternately from top to bottom, forming a bent steam channel between two adjacent staggered turbulence plates.
[0008] Specifically, the condensation mechanism includes a condensation chamber, inside which a spiral condensation channel is installed, and outside the condensation chamber is a jacketed cooling chamber. One end of the spiral condensation channel is connected to the outlet end of the multi-stage turbulence mechanism, and the other end of the spiral condensation channel is connected to a collection bottle.
[0009] Specifically, each layer of staggered spoiler is equipped with a settling pocket at the bottom. The settling pocket is inverted cone shape and has a flow guide hole at the bottom.
[0010] Specifically, each layer of baffles is tilted and bent in the direction of steam flow, with a bending angle of 15°-30°. The projected areas of two adjacent layers of baffles completely overlap. The opening area of the settling pocket is larger than the area of the guide hole, and the diameter of the guide hole is 0.5mm-1mm.
[0011] Specifically, the pitch of the spiral condensation channel decreases from top to bottom, and hemispherical guide protrusions are provided on the inner wall of the spiral condensation channel.
[0012] This invention achieves uniform heating of materials inside the vessel and retention of impurities in the solid catalyst through a built-in multi-stage filtration and stirring structure. Combined with a multi-stage staggered flow disturbance mechanism, it removes dust impurities carried by steam by sedimentation. Then, it is fully condensed by a variable pitch spiral condenser mechanism. The entire process of distillation, impurity separation, and condensation collection is completed in one integrated manner, reducing the mixing of product impurities, improving the purity of distillation and separation and the efficiency of material processing, and adapting to the needs of multi-batch, high-precision distillation experiments in catalyst research and development. Attached Figure Description
[0013] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.
[0014] Figure 1 This is a three-dimensional view of the overall structure of a distillation device for the research and development of a novel catalyst according to this utility model.
[0015] Figure 2 This is a partial three-dimensional view of the distillation stirring mechanism in a distillation device for developing a novel catalyst according to this utility model.
[0016] Figure 3This is a schematic diagram of the multi-stage turbulence mechanism in a distillation device for developing a novel catalyst, according to this utility model.
[0017] Figure 4 This is a schematic diagram of the condensation mechanism in a distillation device for developing a novel catalyst, according to this utility model.
[0018] from Figures 1 to 4 Including: 1. Distillation vessel; 2. Electric heating assembly; 3. Feed inlet; 4. Steam outlet; 5. Discharge outlet; 6. Distillation stirring mechanism; 7. Multi-stage turbulence mechanism; 8. Condensation mechanism; 9. Collection bottle; 10. Drive motor; 11. Rotating main shaft; 12. Conical filter screen; 13. Bottom stirring paddle; 14. Stirring rod; 15. Sealing connecting cylinder; 16. Offset turbulence plate; 17. Bent steam passage; 18. Condensation chamber; 19. Spiral condensation channel; 20. Jacketed cooling chamber; 21. Settling sump. Detailed Implementation
[0019] The present invention will be further described in conjunction with the following embodiments.
[0020] Example 1.
[0021] like Figure 1-4 As shown, a novel distillation apparatus for catalyst research and development includes a distillation vessel 1. The outer wall of the distillation vessel 1 is entirely covered with an electric heating component 2. The electric heating component 2 adopts a constant temperature heating jacket structure, which can precisely control the distillation temperature inside the vessel and is suitable for the separation of catalytic materials with different boiling points. The top left and right ends of the distillation vessel 1 are respectively provided with a feed inlet 3 and a steam outlet 4. The feed inlet 3 is used to add the catalyst reaction mixture, and the steam outlet 4 is used to discharge the gas phase steam generated during distillation. The bottom center of the distillation vessel 1 is equipped with a discharge outlet 5, through which the unevaporated residue and solid catalyst can be discharged after distillation. A distillation stirring mechanism 6 is vertically installed inside the distillation vessel 1. The steam outlet 4 is connected to the inlet of a multi-stage turbulence mechanism 7 through a sealed metal pipe. The outlet pipe of the multi-stage turbulence mechanism 7 is connected to a condensation mechanism 8. The bottom end of the condensation mechanism 8 is sealed and connected to a collection bottle 9 for holding the condensed target liquid phase product.
[0022] The distillation stirring mechanism 6 includes a drive motor 10, which is fixedly installed at the center of the top of the distillation vessel 1. The output shaft of the drive motor 10 is connected downward to the rotating main shaft 11, which extends coaxially and vertically into the bottom of the inner cavity of the distillation vessel 1. Two sets of conical filter screens 12 are fixedly fitted at intervals in the middle section of the rotating main shaft 11, with the larger opening of the conical filter screens 12 facing upward and the smaller opening facing downward, forming a two-stage interception and filtration structure. The bottom stirring paddle 13 is integrally installed at the bottom of the rotating main shaft 11. The bottom stirring paddle 13 has a small gap with the inner wall of the distillation vessel 1, which can scrape off the catalyst powder deposited at the bottom of the vessel. Multiple stirring rods 14 are evenly radially installed on the rotating main shaft 11 between the bottom stirring paddle 13 and the lower conical filter screen 12.
[0023] After the equipment is started, the drive motor 10 drives the rotating main shaft 11 to rotate at a uniform speed. The bottom stirring paddle 13 continuously stirs the high-concentration solid-liquid mixture at the bottom of the distillation vessel 1 to avoid the accumulation of catalyst solids and the resulting local overheating and coking. Multiple stirring rods 14 in the middle section stir the material in the upper part of the distillation vessel 1. Together with the external wall electric heating component 2, the material in the entire vessel is heated evenly and distilled steam is generated stably. Two sets of conical filter screens 12 rotate synchronously with the rotating main shaft 11. The rotation generates centrifugal force, which intercepts and isolates large particles of catalyst solids suspended in the material. The solids slide down the conical surface of the conical filter screen 12 to the bottom of the distillation vessel 1. Only small molecule liquid phase and steam pass upward through the conical filter screen 12, reducing the amount of solid dust entrained by steam from the source and reducing the risk of blockage in the downstream pipeline and product contamination. It is suitable for the pretreatment of reaction liquid containing solid catalysts.
[0024] The multi-stage turbulence mechanism 7 includes a sealed connecting cylinder 15. The upper and lower ends of the sealed connecting cylinder 15 are respectively provided with an inlet flange and an outlet flange, which are respectively connected to the steam outlet 4 pipeline and the condensation mechanism 8 pipeline. Inside the sealed connecting cylinder 15, multiple layers of staggered turbulence plates 16 are fixed from top to bottom. Adjacent layers of staggered turbulence plates 16 are arranged alternately on the left and right, blocking each other, forming a continuous bent steam channel 17 inside the sealed connecting cylinder 15.
[0025] Each layer of staggered baffle 16 is integrally connected to an inverted conical settling sump 21 at the bottom, with small flow guide holes at the bottom of the settling sump 21; each layer of staggered baffle 16 is tilted and bent in the direction of steam advance, with the bending angle controlled between 15° and 30°, and the vertical projection areas of two adjacent layers of staggered baffle 16 completely overlap, ensuring that steam cannot pass through in a straight line and must repeatedly flow back and forth; the opening area of the settling sump 21 is much larger than the area of the bottom flow guide hole, and the diameter of the flow guide hole is limited to 0.5mm-1mm.
[0026] High-temperature steam carrying trace amounts of catalyst powder enters the sealed connecting cylinder 15 and flows back and forth repeatedly along the tortuous steam channel 17. The steam velocity changes continuously, and the solid fine particles entrained in the steam collide with the lower surface of the misaligned baffle 16 due to inertial impact. After losing kinetic energy, the particles slide down into the bottom inverted conical settling hopper 21. The settling hopper 21 collects the dust particles, and the small guiding holes allow only trace amounts of steam to slowly seep back into the lower tortuous steam channel 17. The dust is trapped and accumulates in the settling hopper 21. Inside the vessel 1, the multi-layered staggered baffle plate 16 structure achieves multi-stage sedimentation and impurity removal, significantly removing solid impurities from the steam and preventing impurities from entering the condenser pipe and adhering to or clogging the spiral condenser channel 19, thus ensuring the purity of the condensed product. The 15°-30° tilt angle can improve the dust sliding efficiency, and the completely overlapping projection prevents steam from short-circuiting directly. The 0.5~1mm diameter guide hole not only prevents dust from escaping with the airflow, but also balances the internal air pressure of the sealing connecting cylinder 15, preventing pressure buildup inside the distillation vessel 1.
[0027] The condensing mechanism 8 includes a sealed condensing chamber 18, with a spiral condensing channel 19 arranged inside the condensing chamber 18. The outer wall of the condensing chamber 18 is entirely covered by a jacketed cooling chamber 20, which is circulated with cooling water or low-temperature refrigerant. The upper air inlet of the spiral condensing channel 19 is connected to the air outlet of the multi-stage turbulence mechanism 7 through a pipe, and the lower liquid outlet of the spiral condensing channel 19 is connected downward to the collection bottle 9. The pitch of the spiral condensing channel 19 gradually decreases from top to bottom, and hemispherical guide protrusions are evenly distributed on the inner wall of the spiral condensing channel 19.
[0028] After dust removal, the pure, high-temperature steam enters the spiral condenser channel 19 from top to bottom. The jacketed cooling chamber 20 continuously supplies a low-temperature cooling medium, and heat exchange is completed through the pipe wall. The pitch of the spiral condenser channel 19 gradually decreases from top to bottom, resulting in a denser steam flow path and a larger heat exchange area in the lower layer. The steam temperature decreases as it goes down, gradually liquefying. The hemispherical guide protrusions on the inner wall disrupt the laminar flow of the steam, forming turbulence, which improves the heat exchange contact efficiency between the steam and the pipe wall and avoids incomplete condensation of local steam, thus preventing gas phase loss. The liquefied liquid products collect downwards along the spiral condenser channel 19 and flow into the bottom collection bottle 9 by gravity. The closed pipeline has no volatilization loss, improving the recovery rate of the target product and meeting the needs of precise collection and quantitative analysis of trace products in catalyst research.
[0029] The complete workflow of this equipment is as follows: The catalyst reaction mixture is fed into the distillation vessel 1 through the feed inlet 3, and the feed inlet 3 is then sealed. The electric heating component 2 is started to heat the distillation vessel 1 at a constant temperature, and the drive motor 10 is simultaneously turned on to drive the distillation stirring mechanism 6 to continuously stir. The stirring paddle 13 and stirring rod 14 at the bottom of the vessel uniformly stir the material, and the conical filter screen 12 centrifugally traps solid catalyst particles. After the material is heated, it generates distillation steam containing trace amounts of dust. The steam is sent to the multi-stage turbulence mechanism 7 through the steam outlet 4 pipe, where it undergoes multiple turbulence and sedimentation processes in the bent steam channel 17. The steam entrains the catalyst particles... All fine powder of the catalyst is trapped in the settling hopper 21; the pure steam after removing impurities enters the spiral condensing channel 19 of the condensing mechanism 8, and the jacketed cooling chamber 20 continuously cools and exchanges heat, so that the steam is fully liquefied and the liquid product flows into the collection bottle 9 along the spiral condensing channel 19 to complete the collection; after the single distillation is completed, the electric heating component 2 and the drive motor 10 are turned off, and after the equipment cools down as a whole, the bottom outlet 5 is opened to discharge the catalyst residue in the distillation vessel 1, and the dust accumulated in the settling hopper 21 inside the sealing connecting cylinder 15 of the multi-stage turbulence mechanism 7 is cleaned, and the next set of catalyst sample distillation experiments can be carried out.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A novel distillation apparatus for catalyst research and development, comprising a distillation vessel, wherein the distillation vessel is covered with an electric heating element, characterized in that: The distillation vessel has a feed inlet and a steam outlet at both ends of its top, a discharge outlet at the bottom, a distillation stirring mechanism inside the distillation vessel, a multi-stage turbulence mechanism connected to the steam outlet pipe, a condensation mechanism connected to the outlet pipe of the multi-stage turbulence mechanism, and a collection bottle connected to the bottom of the condensation mechanism. The distillation stirring mechanism includes a drive motor, the output end of which is connected to a rotating main shaft. The rotating main shaft extends coaxially into the interior of the distillation vessel. Two sets of conical filter screens are sleeved and installed in the middle of the rotating main shaft. A vessel bottom stirring paddle is installed at the bottom of the rotating main shaft. A stirring rod is installed on the rotating main shaft between the vessel bottom stirring paddle and the conical filter screen.
2. The novel distillation equipment for catalyst research and development according to claim 1, characterized in that: The multi-stage turbulence mechanism includes a sealed connecting cylinder, inside which several staggered turbulence plates are installed alternately from top to bottom, and a bent steam channel is formed between two adjacent layers of staggered turbulence plates.
3. The novel distillation equipment for catalyst research and development according to claim 2, characterized in that: The condensation mechanism includes a condensation chamber, inside which a spiral condensation channel is installed, and outside the condensation chamber is a jacketed cooling chamber. One end of the spiral condensation channel is connected to the outlet end of the multi-stage turbulence mechanism, and the other end of the spiral condensation channel is connected to the collection bottle.
4. The novel distillation equipment for catalyst research and development according to claim 3, characterized in that: Each layer of the misaligned baffle is equipped with a settling pocket at the bottom. The settling pocket is inverted cone shape and has a flow guide hole at the bottom.
5. The novel distillation equipment for catalyst research and development according to claim 4, characterized in that: Each layer of baffles is tilted and bent in the direction of steam flow, with a bending angle of 15°-30°. The projected areas of two adjacent layers of baffles completely overlap. The opening area of the settling pocket is larger than the area of the guide hole, and the diameter of the guide hole is 0.5mm-1mm.
6. The novel distillation equipment for catalyst research and development according to claim 5, characterized in that: The pitch of the spiral condensation channel decreases sequentially from top to bottom, and the inner wall of the spiral condensation channel is provided with hemispherical guide protrusions.