CN114146436A - Short-range distiller for fatty amide production - Google Patents
Short-range distiller for fatty amide production Download PDFInfo
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- CN114146436A CN114146436A CN202111271258.1A CN202111271258A CN114146436A CN 114146436 A CN114146436 A CN 114146436A CN 202111271258 A CN202111271258 A CN 202111271258A CN 114146436 A CN114146436 A CN 114146436A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
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Abstract
The invention provides a short-range distiller for producing fatty amide, which comprises a tank body, wherein a heating cavity is arranged around the outer side of the middle section of the tank body, an inner cylinder is arranged in the tank body in a rotating manner, the outer wall of the inner cylinder is fixedly connected with a scraper, the scraper is abutted against the inner wall of the tank body, the upper end of the scraper is positioned above the heating cavity, the inner wall of the tank body between the scraper and the heating cavity is an arc-shaped surface, a condensation assembly is arranged in the inner cylinder, a plurality of first through holes are also arranged on the inner cylinder, an annular material receiving ring groove positioned below the scraper is also fixedly connected on the inner wall of the tank body, and a material receiving hopper positioned below the material receiving ring groove is also arranged in the tank body. The condensation component is arranged in the inner cylinder, evaporated gas components are guided into the inner cylinder for condensation, so that the condensation efficiency is higher, and meanwhile, the heating efficiency is improved due to the arc-shaped surface, so that the separation efficiency of light components and heavy components is improved.
Description
Technical Field
The invention relates to the technical field of fatty amide production equipment, in particular to a short-path distiller for fatty amide production.
Background
Fatty acid such as oleic acid, stearic acid, erucic acid and the like is used as a raw material in the fatty amide production, a dehydration catalyst is added under the condition of excessive ammonia for reaction to generate crude fatty amide, the crude fatty amide is filtered, distilled, extracted and purified to obtain a high-quality fatty amide product, the high-quality fatty amide product is pumped to a tank area, and the high-tower granulation and packaging are carried out to obtain a finished product.
The production process is mainly divided into two parts, one part is amide synthesis, the other part is amide refining, and short-path distillation equipment is very critical in the amide synthesis part and the amide refining part.
Chinese patent CN107050903B provides a continuous separation and purification device and method for behenamide, which comprises a crude product storage tank, a primary falling film distillation device for distilling out and separating light components, and a secondary rotary knifing short path distillation device for distilling out and separating behenamide from heavy components, wherein the rotary knifing short path distillation device distills out the behenamide and separates the behenamide from high-boiling-point substances with large viscosity and deep color, thereby realizing continuous automatic stable production of separation and purification of high-melting-point and high-boiling-point products. However, the rotary valley scraped film short path distiller has a problem that the light component (the behenamide as the target product in the patent) and the heavy component are not completely separated in actual operation, so that the light component is slightly less.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a short-path distiller for producing fatty amide, which solves the problem that the light component and the heavy component are not completely separated in the prior art, so that the light component is less in weight.
According to the embodiment of the invention, the short-range distiller for producing fatty amide comprises a tank body, a heating cavity is arranged on the outer side of the middle section of the tank body in a surrounding mode, an inner cylinder is arranged in the tank body in a rotating mode, a scraper is fixedly connected to the outer wall of the inner cylinder and abuts against the inner wall of the tank body, the upper end of the scraper is located above the heating cavity, the inner wall of the tank body between the scraper and the heating cavity is an arc-shaped surface, a condensation assembly is arranged in the inner cylinder, a plurality of first through holes are further formed in the inner cylinder, an annular material receiving ring groove located below the scraper is further fixedly connected to the inner wall of the tank body, and a material receiving hopper located below the material receiving ring groove is further arranged in the tank body.
In the above embodiment, the heating cavity is filled with the heating medium, and heats the material through the arc face, and the light component evaporation enters into the inner tube and condenses after the material is heated, falls to the receiving hopper and finally derives, and the heavy component then shifts downwards along with the scraping of scraper to the receiving annular groove and finally derives.
Further, the internal rotor plate that still is provided with inner tube up end fixed connection of jar, the rotor plate is located the top of scraper and with internal wall sliding connection of jar, the perpendicular fixedly connected with of rotor plate upwards extends to the external axis of rotation of jar, the cloth dish that the fixedly connected with back-off set up in the axis of rotation, the fixedly connected with inlet pipe just of going back on the jar body the inlet pipe still is connected with and is located the jar is internal and spray the material ejection of compact subassembly on the cloth dish.
Furthermore, the discharging assembly comprises a ring pipe which is arranged around the outside of the material distribution disc and communicated with the feeding pipe, a plurality of spray heads are fixedly connected to the inner ring wall of the ring pipe, and the outlet of each spray head is obliquely and downwards aligned to the disc surface of the material distribution disc.
Furthermore, a plurality of spiral grooves extending from the upper end to the lower end of the plate surface are further formed in the plate surface, and materials are sprayed out by the spray head and then are guided to the arc-shaped surface through the grooves.
Further, the heating chamber by jar external wall and with it fixed connection's casing enclose, the first pipe of advancing of lower extreme fixedly connected with, the first exit tube of upper end fixedly connected with of casing, it just still is provided with spiral heat exchange tube in the heating chamber the upper and lower both ends of heat exchange tube are followed respectively both ends are worn out about the casing.
Further, still fixedly connected with on the jar body with connect the first contact tube of material annular intercommunication and still fixedly connected with connect the second contact tube of hopper intercommunication.
Further, the condensation subassembly include with inner tube inner wall sliding connection's last board pipe and lower board pipe and connect the last board pipe with a plurality of standpipes between the board pipe down, the last board pipe still is connected with the second and advances the pipe, the board pipe still is connected with the second exit tube down, the second advance the pipe with the second exit tube is all followed the inner tube lower extreme is worn out and is extended to the tank is external just the second advance the pipe with the disconnection of board pipe down.
Furthermore, the condensation component also comprises spiral pipes which are arranged outside all the vertical pipes and in the inner cylinder in a surrounding mode, and two ends of each spiral pipe are respectively connected with the upper plate pipe and the lower plate pipe.
Furthermore, the upper end of the material receiving ring groove is fixedly connected with a rotating support ring, and the lower end of the inner cylinder is connected with the rotating support ring in a sliding manner; and a guide plate positioned at the lower end of the inner barrel is fixedly connected between every two adjacent scrapers, each guide plate is obliquely arranged and fixedly connected with the inner barrel, and all the first through holes are positioned above the guide plate.
Further, the internal fixedly connected with that goes back of jar is located connect the installation crown plate of material annular below, it is located to connect the hopper installation crown plate below and with the interior rampart fixed connection of installation crown plate, it just to go back fixedly connected with water conservancy diversion ring on the installation crown plate the vertical projection of inner tube is in the water conservancy diversion ring, still set up on the installation crown plate and have surrounded at a plurality of second through-holes outside the water conservancy diversion ring, it is located to go back fixedly connected with on the jar body the connecting pipe of installation crown plate below.
Compared with the prior art, the invention has the following beneficial effects:
set up the condensation subassembly in the inner tube, with the leading-in condensation that carries out in the inner tube of the gaseous component of evaporation for condensation efficiency is higher, sets up the arcwall face simultaneously and makes heating efficiency also improve, thereby makes the separation efficiency of light component and heavy component promote, has improved the yield of light component (being the target product).
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;
FIG. 3 is a schematic top view of a material distribution plate according to an embodiment of the present invention;
FIG. 4 is a schematic view of the inner structure of the inner barrel according to the embodiment of the present invention;
FIG. 5 is a schematic top view of an inner barrel according to an embodiment of the present invention;
in the above drawings:
the device comprises a tank body 1, a heating cavity 2, an inner cylinder 3, a scraper 4, an arc-shaped surface 5, a first through hole 6, a material receiving ring groove 7, a material receiving hopper 8, a first delivery pipe 9, a second delivery pipe 10, a rotating plate 11, a rotating shaft 12, a material distribution disc 13, a material inlet pipe 14, a material distribution groove 15, a ring pipe 16, a spray head 17, a groove 18, a shell 19, a first inlet pipe 20, a first outlet pipe 21, a heat exchange pipe 22, an upper plate pipe 23, a lower plate pipe 24, a vertical pipe 25, a second inlet pipe 26, a second outlet pipe 27, a spiral pipe 28, a rotating support ring 29, a guide plate 30, a mounting ring plate 31, a guide ring 32 and a connecting pipe 33.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
As shown in fig. 1, 2, 3, and 4, the embodiment provides a short-path distiller for producing fatty amide, which includes a tank 1, a heating chamber 2 is disposed around the outer side of the middle section of the tank 1, an inner cylinder 3 is rotatably disposed in the tank 1, a scraper 4 is fixedly connected to the outer wall of the inner cylinder 3, the scraper 4 abuts against the inner wall of the tank 1, wherein the upper end of the scraper 4 is located above the heating chamber 2, the inner wall of the tank 1 between the scraper 4 and the heating chamber 2 is an arc-shaped surface 5, the scraper 4 corresponding to the arc-shaped surface 5 is also arc-shaped, the contact between the two is sliding contact, when the inner cylinder 3 rotates, the scraper 4 is driven to rotate, i.e. scrape the material on the arc-shaped surface 5, the material forms a film on the arc-shaped surface 5 along with the scraping, so that the heating efficiency is higher, and the setting of the arc-shaped surface 5 also increases the evaporation area, the evaporation efficiency is also improved;
a condensing assembly is arranged in the inner cylinder 3, a plurality of first through holes 6 are also formed in the inner cylinder 3, the evaporated gas passes through the first through holes 6, so that the light components enter the inner cylinder 3 to be condensed, and the outer wall of the inner cylinder 3 also plays a certain role in condensation, so that the integral condensation efficiency is improved;
an annular material receiving ring groove 7 positioned below the scraper 4 is fixedly connected to the inner wall of the tank body 1, heavy components flowing downwards along with the scraping of the scraper 4 finally fall into the material receiving ring groove 7, a material receiving hopper 8 positioned below the material receiving ring groove 7 is further arranged in the tank body 1, and the material receiving hopper 8 is used for receiving the condensed light components; wherein still fixedly connected with on the jar body 1 with connect the first eduction tube 9 of material annular 7 intercommunication and still fixedly connected with connect the second eduction tube 10 of hopper 8 intercommunication, what first eduction tube 9 derived is heavy component, what second eduction tube 10 derived is light component (being the target product).
In the above embodiment, the heating chamber 2 is filled with a heating medium, the material is heated through the arc-shaped surface 5, the light components are evaporated and enter the inner cylinder 3 to be condensed after the material is heated, the light components fall to the material receiving hopper 8 to be finally led out, and the heavy components are downwards transferred to the material receiving ring groove 7 to be finally led out along with the scraping of the scraper 4.
As shown in fig. 1 and 2, a rotating plate 11 fixedly connected with the upper end surface of the inner cylinder 3 is further arranged in the tank body 1, the rotating plate 11 is positioned above the scraper 4 and is in sliding connection with the inner wall of the tank body 1, the rotating plate 11 is vertically and fixedly connected with a rotating shaft 12 extending upwards out of the tank body 1, the upper end of the rotating shaft 12 is connected with an external motor, and the motor can drive the rotating disc and the inner cylinder 3 to rotate through the rotating shaft 12;
the last fixedly connected with back-off setting's of axis of rotation 12 cloth dish 13 that goes back, the jar body 1 goes back fixedly connected with inlet pipe 14 just the inlet pipe 14 still is connected with and is located jar internal and spray the material discharge assembly on the cloth dish 13. The outer material of jar body 1 is leading-in through inlet pipe 14 then through cloth dish 13 dispersion to arcwall face 5 on, specifically, the carousel meets a smooth transition and is the arc structure with cloth dish 13, makes the material fill earlier in the cloth groove 15 of the approximate V-arrangement between arc structure and the jar body 1 inner wall like this, then along with rotate downwards water conservancy diversion to arcwall face 5 in succession, thereby makes the material distribution on the arcwall face 5 more even, thereby realizes even evaporation work.
As shown in fig. 1 and 3, the discharging assembly includes a ring pipe 16 surrounding the distribution tray 13 and communicating with the feeding pipe 14, a plurality of nozzles 17 are fixedly connected to an inner ring wall of the ring pipe 16, and an outlet of each nozzle 17 is obliquely aligned with a tray surface of the distribution tray 13. The arranged spray head 17 surrounds the distribution plate 13 along with the ring pipe 16, and sprays materials obliquely downwards so that the materials can be sprayed on the distribution plate 13 more uniformly, so that the distribution is more uniform, furthermore, in order to prevent the materials from forming a flow gathering in the process of sliding down on the distribution plate 13, a plurality of spiral grooves 18 extending from the upper end to the lower end of the distribution plate are also arranged on the distribution plate, the materials are sprayed out by the spray head 17 and then are guided to the arc-shaped surface 5 through the grooves 18, after the materials are sprayed, the materials on the distribution plate flow into the grooves 18 and then flow into the distribution groove 15 through the grooves 18, the grooves 18 are distributed on the distribution plate 13 at equal intervals, and further, the phenomenon that the amount of a certain section in the distribution groove 15 is too large or too small is avoided, so that the distribution is more uniform; in particular, the middle disc surface of the arranged material distribution disc 13 is inwards concave, so that the flow speed of the materials in the grooves 18 can be prevented from being too high, and meanwhile, the materials on the disc surface between every two adjacent grooves 18 can be more easily gathered in the grooves 18.
As shown in fig. 1, the heating chamber 2 is enclosed by the outer wall of the tank body 1 and a housing 19 fixedly connected with the outer wall, the lower end of the housing 19 is fixedly connected with a first inlet pipe 20, the upper end of the housing is fixedly connected with a first outlet pipe 21, a spiral heat exchange pipe 22 is further arranged in the heating chamber 2, and the upper end and the lower end of the heat exchange pipe 22 respectively penetrate out from the upper end and the lower end of the housing 19. The first inlet pipe 20 guides in a heat exchange medium, the first outlet pipe 20 guides out the heat exchange medium, the arc-shaped surface 5 is heated through the heat exchange medium, the heat exchange pipe 22 arranged in the first inlet pipe is used for further heating the heat exchange medium, so that the temperature of the heat exchange medium can be lower when the heat exchange medium enters, the heat exchange pipe 22 arranged in the heating cavity 2 is used for heating to the required temperature again, and therefore a large amount of heat energy loss caused by the heat exchange medium in the external transportation process of the distiller can be avoided.
As shown in fig. 1 and 4, the condensing assembly includes an upper plate pipe 23 and a lower plate pipe 24 slidably connected to an inner wall of the inner cylinder 3, and a plurality of vertical pipes 25 connected between the upper plate pipe 23 and the lower plate pipe 24, both the upper plate pipe 23 and the lower plate pipe 24 are disposed in a hollow manner, both ends of the vertical pipes 25 are respectively communicated with the upper plate pipe 23 and the lower plate pipe 24, the upper plate pipe 23 is further connected with a second inlet pipe 26, the lower plate pipe 24 is further connected with a second outlet pipe 27, both the second inlet pipe 26 and the second outlet pipe 27 penetrate through a lower end of the inner cylinder 3 and extend out of the tank 1, and the second inlet pipe 26 is disconnected from the lower plate pipe 24. The second advances the pipe 26 and then goes into the condensing medium to upper plate pipe 23, gets into the standpipe 25 behind upper plate pipe 23, then converges and exports jar body 1 through second exit tube 27 in the lower plate pipe 24 at last, and the condensing assembly who sets up like this makes the gaseous and standpipe 25 contact of evaporation can be abundant, except outer wall, the inner wall of inner tube 3 for the area of condensation further increases, thereby improves condensation efficiency.
Further, as shown in fig. 4, the condensing assembly further includes a spiral tube 28 surrounding all the vertical tubes 25 and located inside the inner drum 3, and both ends of the spiral tube 28 are connected to the upper plate tube 23 and the lower plate tube 24, respectively. The spiral pipe 28 that sets up is the same with standpipe 25 respectively with upper plate pipe 23 and lower plate pipe 24 intercommunication, and spiral pipe 28 and inner tube 3 inner wall are more close to make spiral pipe 28 can cool off inner tube 3, improve inner tube 3's cooling efficiency.
As shown in fig. 1, 4 and 5, the upper end of the material receiving ring groove 7 is fixedly connected with a rotating support ring 29, the lower end of the inner cylinder 3 is slidably connected with the rotating support ring 29, and the rotating support ring 29 supports the lower end of the inner cylinder 3, so that the scraper 4 and the inner cylinder 3 can rotate more stably;
in order to avoid the light component of a small amount of condensation on the 3 outer walls of inner tube to run off, adjacent two still fixedly connected with is located between the scraper 4 the guide plate 30 of 3 lower extremes of inner tube, each guide plate 30 all with inner tube 3 is slope setting and fixed connection, all first through-hole 6 is located the top of guide plate 30 can avoid light component directly to go in connecing material annular 7 along with the outer wall landing like this, and the scraper 4 interception of the guide plate 30 that is set up and its both sides, then in getting into inner tube 3 through first through-hole 6, finally gets into and connects hopper 8.
As shown in fig. 1, the jar is internal still fixedly connected with to be located connect the installation crown plate 31 of material annular 7 below, it is located to connect hopper 8 the installation crown plate 31 below and with the interior rampart fixed connection of installation crown plate 31 makes like this and connects hopper 8's rigidity, it is just to go back fixedly connected with water conservancy diversion ring 32 on the installation crown plate 31 the vertical projection of inner tube 3 is in the water conservancy diversion ring 32, still set up on the installation crown plate 31 and have around a plurality of second through-holes outside the water conservancy diversion ring 32, still fixedly connected with is located on the jar body 1 connecting pipe 33 of installation crown plate 31 below. The connecting pipe 33 that sets up is used for being connected with vacuum apparatus to realize the evacuation operation of the jar body 1, specifically, during the evacuation, the intercommunication of inner space is realized through the second through-hole in the jar body 1, makes whole jar body 1 be in vacuum environment, and in particular, the vertical projection of inner tube 3 is located the water conservancy diversion ring 32, and the light component that can avoid the condensation falls outside water conservancy diversion ring 32.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a short distance distiller is used in fatty amide production, a serial communication port, which comprises a tank body, jar internal rotation is provided with the inner tube in the middle section outside encircleing and is provided with the heating chamber, fixedly connected with scraper on the inner tube outer wall, the scraper with the internal wall of jar offsets, wherein the upper end of scraper is located on the heating chamber just the scraper with between the heating chamber the internal wall of jar is the arcwall face, be provided with the condensation subassembly in the inner tube just still be provided with a plurality of first through-holes on the inner tube, it is located to go back fixedly connected with on the internal wall of jar the annular that connects the material annular of scraper below, the internal hopper that connects the material annular below that still is provided with of jar.
2. The short-distance distiller for fatty amide production according to claim 1, wherein a rotating plate fixedly connected with an upper end face of the inner barrel is further arranged in the tank body, the rotating plate is located above the scraper and is slidably connected with an inner wall of the tank body, the rotating plate is vertically and fixedly connected with a rotating shaft which extends upwards to the outside of the tank body, a material distribution plate which is arranged in an inverted manner is further fixedly connected to the rotating shaft, a material inlet pipe is further fixedly connected to the tank body, and a material outlet assembly which is located in the tank body and sprays materials on the material distribution plate is further connected to the material inlet pipe.
3. The short-path distiller for producing fatty amide as claimed in claim 2, wherein the discharging assembly comprises a ring pipe surrounding the distribution tray and communicating with the feeding pipe, a plurality of nozzles are fixedly connected to the inner ring wall of the ring pipe, and the outlet of each nozzle is directed downward and obliquely to the tray surface of the distribution tray.
4. The short-path distiller for producing fatty amide as claimed in claim 3, wherein the tray surface is further provided with a plurality of spiral grooves extending from the upper end to the lower end thereof, and the material is sprayed from the spray head and guided to the arc surface through the grooves.
5. The short-path distiller for fatty amide production as claimed in claim 4, wherein the heating chamber is enclosed by the outer wall of the tank and a casing fixedly connected with the outer wall, the lower end of the casing is fixedly connected with a first inlet pipe, the upper end of the casing is fixedly connected with a first outlet pipe, a spiral heat exchange pipe is further arranged in the heating chamber, and the upper end and the lower end of the heat exchange pipe respectively penetrate out of the upper end and the lower end of the casing.
6. The short-path distiller for fatty amide production as claimed in claim 1, wherein the tank body is further fixedly connected with a first delivery pipe communicated with the material receiving ring groove and a second delivery pipe communicated with the material receiving hopper.
7. The short-path distiller for fatty amide production as claimed in any one of claims 1 to 6, wherein the condensing assembly comprises an upper plate pipe and a lower plate pipe which are slidably connected with the inner wall of the inner barrel, and a plurality of vertical pipes connected between the upper plate pipe and the lower plate pipe, the upper plate pipe is further connected with a second inlet pipe, the lower plate pipe is further connected with a second outlet pipe, the second inlet pipe and the second outlet pipe both penetrate out of the lower end of the inner barrel and extend out of the tank body, and the second inlet pipe is disconnected from the lower plate pipe.
8. The short path distiller of claim 7 wherein the condensing assembly further comprises a spiral tube surrounding all of the vertical tubes and located within the inner tube, and wherein the ends of the spiral tube are connected to the upper and lower tubes, respectively.
9. The short-path distiller for producing fatty amide as claimed in claim 8, wherein the upper end of the material receiving ring groove is fixedly connected with a rotating support ring, and the lower end of the inner cylinder is slidably connected with the rotating support ring; and a guide plate positioned at the lower end of the inner barrel is fixedly connected between every two adjacent scrapers, each guide plate is obliquely arranged and fixedly connected with the inner barrel, and all the first through holes are positioned above the guide plate.
10. The short-path distiller for fatty amide production as claimed in claim 9, wherein the tank body is further fixedly connected with a mounting ring plate below the material receiving ring groove, the material receiving hopper is located below the mounting ring plate and is fixedly connected with an inner ring wall of the mounting ring plate, the mounting ring plate is further fixedly connected with a flow guide ring, a vertical projection of the inner cylinder is in the flow guide ring, the mounting ring plate is further provided with a plurality of second through holes surrounding the flow guide ring, and the tank body is further fixedly connected with a connecting pipe below the mounting ring plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111271258.1A CN114146436B (en) | 2021-10-29 | 2021-10-29 | Short-range distiller for fatty amide production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111271258.1A CN114146436B (en) | 2021-10-29 | 2021-10-29 | Short-range distiller for fatty amide production |
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| Publication Number | Publication Date |
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| CN114146436A true CN114146436A (en) | 2022-03-08 |
| CN114146436B CN114146436B (en) | 2023-06-27 |
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