Raw material purification device based on production of butanol and octanol

Abstract

The invention discloses a raw material purification device based on production of butanol and octanol, the raw material purification device comprises a purification cylinder, a material distribution mechanism, a purification mechanism, an auxiliary mechanism and a descaling mechanism, a first partition plate and a second partition plate are arranged in the purification cylinder, and a heat exchange pipe is fixedly connected to the purification cylinder and is used for separating water and impurities in a liquid raw material; the material distributing mechanism evenly distributes liquid raw materials in the heat exchange pipes through a conical block and a material guiding hopper, heat transfer and mass transfer efficiency is optimized, the purifying mechanism achieves efficient separation of impurities through the synergistic effect of heating steam and cooling water, and the product quality is improved. The auxiliary mechanism drives a cleaning sleeve through a reciprocating lead screw and a movable sleeve to dynamically clean water vapor on the surface of the heat exchange pipe, the water vapor is prevented from forming a water film hindering heat exchange, the descaling mechanism conducts deep descaling on the surface of the heat exchange pipe through cooperation of a scraper blade and annular teeth, the service life of equipment is prolonged, and the practicability is high. According to the invention, the production efficiency of butanol and octanol and the product quality are obviously improved, and the energy consumption and the equipment maintenance cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of raw material purification for producing butanol and octanol, and in particular to a raw material purification device for producing butanol and octanol. Background Art

[0002] Butyl octanol is an important chemical raw material, widely used in plastics, coatings, inks, medicines and pesticides. Its production is mainly through the propylene carbonylation method, which has the advantages of fast reaction speed, high product yield and less environmental pollution. In the production process, the high-pressure evaporator is one of the key equipment, which is used to separate and purify the reaction products and recover the unreacted raw materials to reduce costs. First, the evaporated gas and liquid are not in sufficient contact, resulting in low mass transfer efficiency, affecting the purity and yield of the product. Second, the condensed water inside the evaporator is not discharged smoothly, which easily leads to scaling on the surface of the heat exchange tube. In addition, the operating conditions of the high-pressure evaporator (such as temperature and pressure) need to be further optimized to reduce energy consumption and improve reaction selectivity.

[0003] The existing Chinese patent with publication number CN222342330U includes a separation cylinder, wherein a partition is provided inside the separation cylinder, a fixing rod is fixedly connected to the outside of the partition, and the outer ends of the fixing rods are respectively fixedly connected to the middle of the inner wall of the separation cylinder, the top of the partition is fixedly connected to a first separation plate, and the top of the inner wall of the separation cylinder is fixedly connected to a second separation plate, and a cleaning component is commonly provided in the middle of the first separation plate and the second separation plate.

[0004] When the above device is in use, the fan blades are driven to rotate by the first motor, so that when the exhaust gas enters the equipment, the gas is driven to move upward to promote gas-liquid separation. The first separation plate and the second separation plate are cooperated to perform multiple gas-liquid separations to avoid liquid mixed in the gas and improve the separation effect. However, in actual use, since the traditional evaporator concentrates the liquid raw materials into one area, it is easy to cause inconsistent thickness of the liquid film on the inner wall of the heat exchange tube, causing the local liquid film to be too thick or too thin, thereby reducing the heat and mass transfer efficiency and affecting product quality. Therefore, it is difficult to evenly distribute the liquid raw materials inside the evaporator.

[0005] To this end, we proposed a raw material purification device based on the production of butyl octanol. Summary of the Invention

[0006] The object of the present invention is to provide a raw material purification device based on the production of butanol and octanol, which has the advantage of uniformly distributing the liquid raw material inside the evaporator and solves the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a raw material purification device based on the production of 1,2-butanol, comprising a purification cylinder fixedly supported by an external bracket, wherein a first partition plate and a second partition plate are fixedly connected at symmetrical positions near both ends of the inner wall of the purification cylinder, and the opposite surfaces of the first partition plate and the second partition plate are penetrated and fixedly connected with heat exchange tubes for separating and purifying moisture or impurities in the liquid raw material, a side of the purification cylinder near the end is penetrated and fixedly connected with a liquid inlet pipe for feeding the liquid raw material into the purification cylinder, and an outer contour of the side of the purification cylinder near the bottom is penetrated and fixedly connected with a liquid discharge pipe for discharging the treated liquid raw material, and the purification cylinder is provided with a purification mechanism for separating moisture and impurities in the liquid raw material inside the purification cylinder and a material distribution mechanism for evenly distributing the liquid raw material inside the heat exchange tube.

[0008] Preferably, the purification mechanism includes an end of the purification cylinder close to the liquid inlet pipe, which is penetrated and fixedly connected with an air inlet pipe for releasing heating steam into the interior of the purification cylinder, an outer contour of the purification cylinder close to the bottom end is penetrated and fixedly connected with a water inlet pipe for releasing cooling water to the bottom of the purification cylinder, and an outer contour of the purification cylinder close to the water inlet pipe is penetrated and fixedly connected with a drain pipe for discharging condensed water, and the end of the purification cylinder is penetrated and fixedly connected with an exhaust pipe.

[0009] Preferably, the material distribution mechanism includes a conical block that is penetrated and fixedly rotated at the end of the purification cylinder to evenly distribute the liquid raw materials on the first partition plate, and the conical block is driven to rotate by a power mechanism, and support blocks are fixedly connected to the symmetrical positions on both sides of the inner wall of the purification cylinder near the end, and the opposite ends of the two support blocks are fixedly connected to a guide hopper that guides the liquid raw materials to the end of the conical block.

[0010] Preferably, a plurality of evenly placed fixed blocks are fixedly connected to the bottom of the conical block, and each of the fixed blocks is fixedly connected to an L-shaped material moving plate for scraping and guiding the liquid raw materials on the purification cylinder and the first partition plate, and the L-shaped material moving plate is in contact with the inner wall of the purification cylinder and the first partition plate.

[0011] Preferably, the first partition plate is provided with an auxiliary mechanism for cleaning water vapor on the outer contour of the heat exchange tube, the auxiliary mechanism includes a reciprocating screw that is passed through the first partition plate and is connected to a fixed axis for rotation, and the fixed block is coaxially fixed to the conical block, and a movable sleeve that can be lifted and reciprocated is sleeved on the outer contour of the reciprocating screw, and a circular plate for cleaning water vapor on the heat exchange tube is fixedly connected to the outer contour of the movable sleeve.

[0012] Preferably, the circular plate and the positions corresponding to the heat exchange tubes are penetrated and rotatably connected with a plurality of evenly placed cleaning sleeves, and the inner wall of each cleaning sleeve is penetrated and movably connected by the heat exchange tube at the corresponding position.

[0013] Preferably, the cleaning sleeve is provided with a descaling mechanism for scraping dirt on the outer contour of the heat exchange tube, and the descaling mechanism includes scrapers fixedly connected to symmetrical positions on both sides of the bottom end of each cleaning sleeve for scraping dirt on the surface of the heat exchange tube, an annular groove is provided on the circular plate, and the inner wall of the annular groove is rotatably connected to an annular tooth that drives the cleaning sleeve to rotate on the circular plate, and a first gear is fixedly connected to the outer contour of each end of the cleaning sleeve, and each of the first gears is engaged with the teeth on the outer contour of the annular tooth.

[0014] Preferably, a threaded sleeve is penetrated and rotatably connected to one side of the circular plate close to the annular tooth, a second gear is fixedly connected to the outer contour of the end of the threaded sleeve, the second gear is meshed with the teeth of the inner wall of the annular tooth, a threaded rod that drives the second gear to rotate back and forth is fixedly connected to the opposite surfaces of the first partition plate and the second partition plate, and the threaded sleeve is penetrated and screwed by the threaded rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the synergistic effect of heating steam and cooling water, efficient separation of moisture and impurities in liquid raw materials is achieved. The heating steam enters the purification cylinder through the air inlet pipe, contacts and heats the liquid raw materials in the heat exchange tube, and evaporates the moisture and impurities therein to form steam. Subsequently, the cooling water enters the bottom of the purification cylinder through the water inlet pipe, flows in the opposite direction of the steam for heat exchange, and further condenses the condensable part in the steam, so that the impurities and moisture can be separated and discharged, thereby improving the separation efficiency, reducing the residual impurities, and significantly improving the final product quality of butyl octanol. At the same time, by optimizing the separation process, the emission of non-condensable gases is reduced, and the pollution to the environment is reduced, which meets the environmental protection requirements of modern chemical production.

[0017] Second, the conical block rotates on a fixed axis driven by a power mechanism, and centrifugal force is used to evenly distribute the liquid raw material onto the first partition plate. Subsequently, the liquid raw material can form a uniform liquid film on the inner wall of the heat exchange tube under the action of its own gravity, ensuring the heat and mass transfer efficiency inside the heat exchange tube, avoiding the problem of local liquid film being too thick or too thin caused by uneven liquid distribution in traditional evaporators, and significantly improving the evaporation efficiency, reducing energy waste caused by local overheating or overcooling. In addition, the uniform liquid film thickness helps to improve product quality and reduce impurity residues caused by uneven distribution, thereby improving the final purity of octanol.

[0018] 3. Through the cooperation of the reciprocating screw and the movable sleeve, dynamic cleaning of water vapor on the surface of the heat exchange tube is achieved. The reciprocating screw rotates on a fixed axis driven by the tapered block, and the movable sleeve moves up and down on the reciprocating screw, driving the cleaning sleeve on the circular plate to scrape off water vapor on the surface of the heat exchange tube, effectively preventing water vapor from forming a water film on the surface of the heat exchange tube that hinders heat transfer, while reducing the accumulation of dirt and significantly improving the heat exchange efficiency of the heat exchange tube.

[0019] 4. Through the meshing transmission of the first gear and the annular gear, the scraper can deeply remove scale from the surface of the heat exchange tube. The scraper is fixed on the cleaning sleeve, and the cleaning sleeve rotates back and forth through the meshing transmission of the first gear and the annular gear, thereby scraping and cleaning the scale on the surface of the heat exchange tube. This not only effectively solves the problem of dirt accumulation on the surface of the heat exchange tube in the traditional evaporator, but also further ensures the heat exchange efficiency of the heat exchange tube, reduces the increase in energy consumption and the risk of equipment failure caused by dirt, and significantly improves the operating efficiency and economic benefits of the equipment, and provides strong support for energy conservation and emission reduction in the production process of 1,2-decyl alcohol.

[0020] The coordinated use of the above-mentioned structure solves the problem that, in actual use of the existing device, it is difficult to evenly distribute the liquid raw materials inside the evaporator because the traditional evaporator concentrates the liquid raw materials into one area, which easily leads to inconsistent thickness of the liquid film on the inner wall of the heat exchange tube, causing the local liquid film to be too thick or too thin, thereby reducing the heat and mass transfer efficiency and affecting product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the guide hopper of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of the three-dimensional structure of the first partition plate of the present invention;

[0025] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A in the middle;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the movable sleeve of the present invention;

[0027] Figure 7 This is a schematic cross-sectional view of the three-dimensional structure of the circular plate of the present invention;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the scraper portion of the present invention.

[0029] In the figure: 1. purification cylinder; 2. liquid inlet pipe; 3. first partition plate; 4. second partition plate; 5. heat exchange tube; 6. liquid discharge pipe; 7. air inlet pipe; 8. water inlet pipe; 9. drain pipe; 10. exhaust pipe; 11. support block; 12. guide hopper; 13. conical block; 14. fixed block; 15. L-shaped material transfer plate; 16. cleaning sleeve; 17. reciprocating screw; 18. movable sleeve; 19. scraper; 20. first gear; 21. annular gear; 22. threaded sleeve block; 23. second gear; 24. threaded rod; 25. circular plate; 251. annular groove. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] Example 1:

[0032] See also Figures 1 to 8 The present invention provides a technical solution: a raw material purification device for producing butanol, comprising a purification cylinder 1 fixedly supported by an external bracket, wherein a first partition plate 3 and a second partition plate 4 are fixedly connected at symmetrical positions near both ends of the inner wall of the purification cylinder 1, and a heat exchange tube 5 for separating and purifying moisture or impurities in the liquid raw material is penetrated and fixedly connected on the opposite surfaces of the first partition plate 3 and the second partition plate 4, a liquid inlet pipe 2 for feeding the liquid raw material into the purification cylinder 1 is penetrated and fixedly connected on one side near the end of the purification cylinder 1, and a liquid discharge pipe 6 for discharging the treated liquid raw material is penetrated and fixedly connected on the outer contour of the side near the bottom of the purification cylinder 1, and a purification mechanism for separating moisture and impurities in the liquid raw material inside the purification cylinder 1 and a material distribution mechanism for evenly distributing the liquid raw material inside the heat exchange tube 5 are provided on the purification cylinder 1.

[0033] During use, the purification cylinder 1 is set up and fixedly supported on the ground by an external bracket to improve the stability of the purification cylinder 1. The first partition plate 3 and the second partition plate 4 are set on the purification cylinder 1, and the first partition plate 3 and the second partition plate 4 are fixedly supported on the inner wall of the purification cylinder 1, so that the first partition plate 3 and the second partition plate 4 separate the two ends of the purification cylinder 1. The heat exchange tube 5 set on the first partition plate 3 and the second partition plate 4 can connect the two ends of the purification cylinder 1, so as to facilitate the subsequent separation and purification of moisture and impurities in the liquid raw material.

[0034] The liquid inlet pipe 2 and the liquid discharge pipe 6 are arranged on the purification cylinder 1, and are fixed at symmetrical positions at both ends of the purification cylinder 1, and the liquid inlet pipe 2 and the liquid discharge pipe 6 are both connected to the inner walls of both ends of the purification cylinder 1, and the liquid inlet pipe 2 is connected to the external circulation pump, so that the circulation pump can draw the liquid raw material to the end of the purification cylinder 1 through the liquid inlet pipe 2, and the liquid raw material flows to the bottom of the purification cylinder 1 through the heat exchange pipe 5 under the action of its own gravity, so that the liquid discharge pipe 6 can discharge the purified liquid raw material.

[0035] Through the purification mechanism and the material distribution mechanism provided on the purification cylinder 1, the material distribution mechanism can evenly distribute the liquid raw material on the first partition plate 3, thereby ensuring the consistency of the thickness of the liquid raw material inside the heat exchange tube 5. At the same time, the purification mechanism can fill the interior of the purification cylinder 1 with heating steam to contact the heat exchange tube 5, and heat and evaporate the liquid raw material inside the heat exchange tube 5, thereby separating the moisture and impurities in the liquid raw material and improving the purity of the liquid raw material.

[0036] Example 2:

[0037] On the basis of the first embodiment, further steps are as follows:

[0038] The purification mechanism includes an end of the purification cylinder 1 close to the liquid inlet pipe 2, which is penetrated and fixedly connected with an air inlet pipe 7 for releasing heating steam into the interior of the purification cylinder 1; an outer contour of the purification cylinder 1 close to the bottom end is penetrated and fixedly connected with a water inlet pipe 8 for releasing cooling water to the bottom of the purification cylinder 1; and an outer contour of the purification cylinder 1 close to the water inlet pipe 8 is penetrated and fixedly connected with a drain pipe 9 for discharging condensed water; and an end of the purification cylinder 1 is penetrated and fixedly connected with an exhaust pipe 10.

[0039] During use, the air inlet pipe 7 provided on the purification cylinder 1 is connected to the inner wall of the purification cylinder 1. The heating steam is first filled into the inner wall of the purification cylinder 1 through the air inlet pipe 7, and the heating steam contacts and heats the heat exchange tube 5, so that the molecular kinetic energy of the liquid raw material inside the heat exchange tube 5 increases, and the pressure also increases accordingly, and then the moisture and impurities in the liquid raw material begin to evaporate under high temperature conditions to form steam, thereby realizing the separation of moisture and impurities in the liquid raw material and improving the purity of the liquid raw material.

[0040] Through the water inlet pipe 8 provided on the purification cylinder 1, cooling water is first added to the second partition plate 4 at the bottom of the purification cylinder 1 through the water inlet pipe 8, and the cooling water on the second partition plate 4 flows in the opposite direction to the steam for heat exchange, so that the non-condensable gas in the steam inside the heat exchange tube 5 moves to the top of the purification cylinder 1, and the exhaust pipe 10 is provided on the purification cylinder 1, so that the non-condensable gas at the end of the purification cylinder 1 is discharged through the exhaust pipe 10, and at the same time, the condensable part of the liquid raw material inside the heat exchange tube 5 forms a layer of water film on the surface of the heat exchange tube 5, which is mixed with the cooling water on the second partition plate 4 at the bottom, and the drain pipe 9 provided on the purification cylinder 1 enables the drain pipe 9 to discharge the cooling water on the second partition plate 4, thereby increasing the condensation treatment effect and further improving the purity of the product.

[0041] Example 3:

[0042] On the basis of the second embodiment, further steps are as follows:

[0043] The material distribution mechanism includes a conical block 13 that is penetrated and fixedly rotated at the end of the purification cylinder 1 to evenly distribute the liquid raw material on the first partition plate 3, and the conical block 13 is driven to rotate by a power mechanism. Support blocks 11 are fixedly connected to the symmetrical positions on both sides of the inner wall of the purification cylinder 1 near the end, and the opposite ends of the two support blocks 11 are fixedly connected to a guide hopper 12 that guides the liquid raw material to the end of the conical block 13.

[0044] A plurality of evenly placed fixed blocks 14 are fixedly connected to the bottom of the conical block 13, and each of the fixed blocks 14 is fixedly connected to an L-shaped material moving plate 15 for scraping and guiding the liquid raw materials on the purification cylinder 1 and the first partition plate 3, and the L-shaped material moving plate 15 is in contact with the inner wall of the purification cylinder 1 and the first partition plate 3.

[0045] When in use, the conical block 13 provided on the purification cylinder 1 is rotated on a fixed axis on the purification cylinder 1. The above-mentioned power mechanism is a motor after power is supplied, and the output shaft of the motor is coaxially fixedly connected to the conical block 13. The motor is started so that the motor can drive the conical block 13 to rotate on a fixed axis on the purification cylinder 1. Through the support block 11 provided on the purification cylinder 1 and the guide hopper 12 provided on the support block 11, the support block 11 can fix the guide hopper 12 on the inner wall of the purification cylinder 1, and the liquid inlet port of the liquid inlet pipe 2 is located at the upper part of the guide hopper 12, so that the water inlet pipe 8 can fill the liquid raw material into the guide hopper. 12, and the guide hopper 12 guides the liquid raw material to the end of the conical block 13, and the conical block 13 rotates along a fixed axis, so that the conical block 13 can evenly distribute the liquid raw material on the first partition plate 3 under the action of the rotating centrifugal force, and the liquid raw material on the first partition plate 3 can evenly enter the inner wall of the heat exchange tube 5, ensuring that a uniform liquid film can be formed inside the heat exchange tube 5, thereby improving the heat transfer and mass transfer efficiency of the liquid raw material inside the heat exchange tube 5, ensuring the stability and efficiency of the evaporation process of the liquid raw material, and avoiding the problem of uneven distribution of the liquid raw material, resulting in excessive concentration of the liquid and formation of structure.

[0046] The fixed block 14 is fixedly supported on the conical block 13 by the fixed block 14 provided on the conical block 13, and the fixed block 14 provided on the fixed block 14 enables the L-shaped material moving plate 15 to be fixedly supported on the fixed block 14, and the L-shaped material moving plate 15 is in contact with the purification cylinder 1 and the first partition plate 3, and the conical block 13 rotates around the fixed axis, so that the L-shaped material moving plate 15 can scrape the liquid raw materials on the inner wall of the purification cylinder 1 and the surface of the first partition plate 3 and guide them to the position of the heat exchange tube 5, thereby realizing the cleaning of the liquid raw materials on the purification cylinder 1 and the first partition plate 3, avoiding waste of liquid raw materials, and reducing raw material costs.

[0047] Example 4:

[0048] On the basis of the third embodiment, further steps are as follows:

[0049] The first partition plate 3 is provided with an auxiliary mechanism for cleaning water vapor on the outer contour of the heat exchange tube 5. The auxiliary mechanism includes a reciprocating screw 17 that is passed through the first partition plate 3 and is connected to the fixed axis for rotation, and the fixed block 14 is coaxially fixedly connected to the conical block 13. The outer contour of the reciprocating screw 17 is provided with a movable sleeve 18 that can move up and down and reciprocatingly. The outer contour of the movable sleeve 18 is fixedly connected to a circular plate 25 for cleaning water vapor on the heat exchange tube 5.

[0050] The circular plate 25 and the corresponding positions of the heat exchange tubes 5 are penetrated and rotatably connected with a plurality of evenly placed cleaning sleeves 16 , and the inner wall of each cleaning sleeve 16 is penetrated and movably connected by the heat exchange tube 5 at the corresponding position.

[0051] When in use, the reciprocating screw 17 provided on the first partition plate 3 is used to enable the reciprocating screw 17 to be connected to the first partition plate 3 for fixed-axis rotation, and the reciprocating screw 17 is coaxially fixedly connected to the tapered block 13, so that the tapered block 13 can drive the reciprocating screw 17 to synchronously rotate on the first partition plate 3 on the fixed-axis, and the movable sleeve 18 provided on the reciprocating screw 17 can be sleeved on the outer contour of the reciprocating screw 17 and screwed, and the circular plate 25 provided on the movable sleeve 18 is fixedly supported on the outer contour of the movable sleeve 18, and the cleaning sleeve provided on the circular plate 25 16, so that the cleaning sleeve 16 is sleeved on the outer contour of the heat exchange tube 5, and the cleaning sleeve 16 movably supports the circular plate 25 under the action of the heat exchange tube 5, and the reciprocating screw 17 rotates on a fixed axis, so that the movable sleeve 18 can drive the circular plate 25 to move up and down and back and forth under the action of the reciprocating screw 17, and the cleaning sleeve 16 fits the surface of the heat exchange tube 5, and then the circular plate 25 can drive the cleaning sleeve 16 to scrape off the water vapor on the surface of the heat exchange tube 5, thereby avoiding the water vapor from forming a water film on the surface of the heat exchange tube 5, hindering the heat transfer of the heat exchange tube 5, and further improving the heat exchange efficiency of the heat exchange tube 5.

[0052] Embodiment 5:

[0053] On the basis of the fourth embodiment, further steps are as follows:

[0054] The cleaning sleeve 16 is provided with a descaling mechanism for scraping dirt on the outer contour of the heat exchange tube 5. The descaling mechanism includes scrapers 19 fixedly connected to symmetrical positions on both sides of the bottom end of each cleaning sleeve 16 for scraping dirt on the surface of the heat exchange tube 5. An annular groove 251 is provided on the circular plate 25. The inner wall of the annular groove 251 is rotatably connected to an annular tooth 21 that drives the cleaning sleeve 16 to rotate on the circular plate 25. A first gear 20 is fixedly connected to the outer contour of each end of the cleaning sleeve 16, and each first gear 20 is engaged with the teeth on the outer contour of the annular tooth 21.

[0055] A threaded sleeve 22 is penetrated and rotatably connected to one side of the circular plate 25 close to the annular tooth 21, and a second gear 23 is fixedly connected to the outer contour of the end of the threaded sleeve 22. The second gear 23 is engaged with the teeth of the inner wall of the annular tooth 21. A threaded rod 24 is fixedly connected to the opposite surfaces of the first partition plate 3 and the second partition plate 4 to drive the second gear 23 to rotate back and forth, and the threaded sleeve 22 is penetrated and screwed by the threaded rod 24.

[0056] During use, the scraper 19 provided on the cleaning sleeve 16 is fixedly supported on the cleaning sleeve 16, and the scraper 19 is in contact with the surface of the heat exchange tube 5, so as to facilitate the subsequent cleaning of scale on the surface of the heat exchange tube 5. The annular groove 251 provided on the circular plate 25 and the annular teeth 21 provided on the annular groove 251 can movably support the annular teeth 21, so that the annular teeth 21 can be rotatably connected to the inner wall of the annular groove 251. The first gear 20 provided on the cleaning sleeve 16 can be meshed with the teeth on the outer contour of the annular teeth 21 for transmission.

[0057] The threaded sleeve 22 is supported by the circular plate 25, so that the threaded sleeve 22 can be rotatably connected on the circular plate 25. The threaded rod 24 is fixedly supported on the first partition plate 3 and the second partition plate 4 by the threaded rod 24 provided on the first partition plate 3 and the second partition plate 4, and the threaded rod 24 passes through the inner wall of the threaded sleeve 22 and is screwed. As the circular plate 25 moves up and down, the threaded sleeve 22 can be reciprocated on the circular plate 25 under the action of the threaded rod 24. The second gear 23 is fixedly supported on the threaded rod 24, so that the threaded sleeve 22 can be rotated back and forth on the circular plate 25. The grooved sleeve block 22 can drive the second gear 23 to synchronously perform fixed-axis reciprocating rotation, and the second gear 23 meshes with the teeth on the inner wall of the annular gear 21 for transmission, so that the second gear 23 can drive the annular gear 21 to synchronously rotate back and forth on the inner wall of the annular groove 251, and the first gear 20 can drive the cleaning sleeve 16 and the scraper 19 to rotate back and forth under the action of the annular gear 21, so that the scraper 19 can scrape and clean the scale on the surface of the heat exchange tube 5. Since water vapor easily forms scale on the surface of the heat exchange tube 5, which reduces the heat exchange efficiency and increases the equipment maintenance cost, the surface of the heat exchange tube 5 is descaled, which further improves the heat exchange efficiency of the heat exchange tube 5 and extends the service life of the heat exchange tube 5.

[0058] Furthermore, the existing device can evenly distribute the liquid raw material inside the evaporator during actual use, is easy to use, and is better than traditional products.

[0059] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0060] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A raw material purification device based on the production of butyl octanol, characterized in that: The invention comprises a purification cylinder (1) fixedly supported by an external bracket, wherein a first partition plate (3) and a second partition plate (4) are fixedly connected at symmetrical positions near both ends of the inner wall of the purification cylinder (1), and a heat exchange tube (5) for separating and purifying moisture or impurities in a liquid raw material is penetrated and fixedly connected on the opposite surfaces of the first partition plate (3) and the second partition plate (4), and a liquid inlet tube (2) for feeding the liquid raw material into the purification cylinder (1) is penetrated and fixedly connected on one side near the end, and a liquid discharge tube (6) for discharging the treated liquid raw material is penetrated and fixedly connected on the outer contour of the side near the bottom end of the purification cylinder (1), and a purification mechanism for separating moisture and impurities in the liquid raw material inside the purification cylinder (1) and a material distribution mechanism for evenly distributing the liquid raw material inside the heat exchange tube (5) are provided on the purification cylinder (1).

2. A raw material purification device based on the production of butyl octanol according to claim 1, characterized in that: The purification mechanism comprises an end of the purification cylinder (1) close to the liquid inlet pipe (2) which is penetrated and fixedly connected to an air inlet pipe (7) for delivering heating steam into the interior of the purification cylinder (1); an outer contour of the purification cylinder (1) close to the bottom end is penetrated and fixedly connected to a water inlet pipe (8) for delivering cooling water to the bottom of the purification cylinder (1); and an outer contour of the purification cylinder (1) close to the water inlet pipe (8) is penetrated and fixedly connected to a drain pipe (9) for discharging condensed water; and an end of the purification cylinder (1) is penetrated and fixedly connected to an exhaust pipe (10).

3. A raw material purification device based on the production of butyl octanol according to claim 2, characterized in that: The material distribution mechanism comprises a conical block (13) which is penetrated at the end of the purification cylinder (1) and is connected to the conical block (13) for evenly distributing the liquid raw material on the first partition plate (3) through a fixed axis rotation, and the conical block (13) is driven to rotate by a power mechanism, and support blocks (11) are fixedly connected at symmetrical positions on both sides of the inner wall of the purification cylinder (1) near the end, and the opposite ends of the two support blocks (11) are fixedly connected to a guide hopper (12) for guiding the liquid raw material to the end of the conical block (13).

4. A raw material purification device based on the production of butyl octanol according to claim 3, characterized in that: The bottom of the conical block (13) is fixedly connected to a plurality of evenly placed fixed blocks (14), and each of the fixed blocks (14) is fixedly connected to an L-shaped material moving plate (15) for scraping and guiding the liquid raw material on the purification cylinder (1) and the first partition plate (3), and the L-shaped material moving plate (15) is in contact with the inner wall of the purification cylinder (1) and the first partition plate (3).

5. A raw material purification device based on the production of butyl octanol according to claim 1, characterized in that: The first partition plate (3) is provided with an auxiliary mechanism for cleaning water vapor on the outer contour of the heat exchange tube (5), the auxiliary mechanism comprising a reciprocating screw (17) that is passed through the first partition plate (3) and is connected to the first partition plate (3) for fixed-axis rotation, and a fixed block (14) is coaxially fixedly connected to the conical block (13), a movable sleeve (18) that is sleeved on the outer contour of the reciprocating screw (17) for lifting and reciprocating movement, and a circular plate (25) that is fixedly connected to the outer contour of the movable sleeve (18) for cleaning water vapor on the heat exchange tube (5).

6. A raw material purification device based on the production of butyl octanol according to claim 5, characterized in that: The circular plate (25) and the heat exchange tube (5) are penetrated and rotatably connected to a plurality of evenly placed cleaning sleeves (16), and the inner wall of each cleaning sleeve (16) is penetrated and movably connected by the heat exchange tube (5) at the corresponding position.

7. A raw material purification device based on the production of butyl octanol according to claim 6, characterized in that: The cleaning sleeve (16) is provided with a descaling mechanism for scraping dirt on the outer contour of the heat exchange tube (5), and the descaling mechanism includes scrapers (19) fixedly connected to symmetrical positions on both sides of the bottom end of each cleaning sleeve (16) for scraping dirt on the surface of the heat exchange tube (5), an annular groove (251) is provided on the circular plate (25), and the inner wall of the annular groove (251) is rotatably connected to an annular tooth (21) for driving the cleaning sleeve (16) to rotate on the circular plate (25), and a first gear (20) is fixedly connected to the outer contour of the end of each cleaning sleeve (16), and each first gear (20) is meshed with the teeth on the outer contour of the annular tooth (21).

8. A raw material purification device for producing butyl octanol according to claim 5, characterized in that: A threaded sleeve (22) is penetrated and rotatably connected to one side of the circular plate (25) close to the annular tooth (21); a second gear (23) is fixedly connected to the outer contour of the end of the threaded sleeve (22); the second gear (23) is meshed with the teeth of the inner wall of the annular tooth (21); a threaded rod (24) is fixedly connected to the opposite surfaces of the first partition plate (3) and the second partition plate (4) for driving the second gear (23) to rotate back and forth; and the threaded sleeve (22) is penetrated and screwed by the threaded rod (24).

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