CN114146436B - Short-range distiller for fatty amide production - Google Patents
Short-range distiller for fatty amide production Download PDFInfo
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- CN114146436B CN114146436B CN202111271258.1A CN202111271258A CN114146436B CN 114146436 B CN114146436 B CN 114146436B CN 202111271258 A CN202111271258 A CN 202111271258A CN 114146436 B CN114146436 B CN 114146436B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
Abstract
The invention provides a short-range distiller for fatty amide production, which comprises a tank body, wherein a heating cavity is arranged on the outer side of the middle section of the tank body in a surrounding manner, an inner cylinder is arranged in the tank body in a rotating manner, a scraper is fixedly connected to the outer wall of the inner cylinder, the scraper abuts 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 component is arranged in the inner cylinder, a plurality of first through holes are further arranged on the inner cylinder, an annular material receiving ring groove positioned below the scraper is fixedly connected to the inner wall of the tank body, and a material receiving hopper positioned below the material receiving ring groove is further arranged in the tank body. According to the invention, the condensing assembly is arranged in the inner cylinder, the evaporated gas component is led into the inner cylinder for condensation, so that the condensation efficiency is higher, and meanwhile, the arc-shaped surface is arranged, so that the heating efficiency is also improved, and the separation efficiency of the light component and the heavy component is improved.
Description
Technical Field
The invention relates to the technical field of fatty amide production equipment, in particular to a short-range distiller for fatty amide production.
Background
Fatty acid such as oleic acid, stearic acid, erucic acid and the like are used as raw materials in fatty amide production, a dehydration catalyst is added for reaction under the condition of excessive ammonia to generate crude fatty amide, the crude fatty amide is filtered, distilled, extracted and purified to obtain a high-quality fatty amide product, and the high-quality fatty amide product is pumped to a tank area and subjected to high-tower granulation and packaging to obtain a finished product.
The production process is mainly divided into two parts, wherein 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 first-stage falling film distillation device for evaporating and separating light components, and a second-stage rotary wiped film short-path distillation device for evaporating and separating behenamide from heavy components, which are sequentially connected, wherein the rotary wiped film short-path distillation device evaporates behenamide, separates high-boiling substances with high viscosity and deep color, and realizes continuous automatic stable production for separating and purifying high-melting-point and high-boiling products. However, the rotary valley-shaving short-path distiller often has the problem that the separation of light components (the target product of behenamide in the patent) and heavy components is incomplete, so that the light components are less in quantity.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a short-range distiller for producing fatty amide, which solves the problem that the light component and the heavy component are not thoroughly separated to cause less light component in the prior art.
According to the embodiment of the invention, the short-range distiller for fatty amide production 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, the scraper 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 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 embodiment, the heating cavity is filled with the heating medium, the material is heated through the arc surface, the light components are evaporated into the inner barrel for condensation after the material is heated, the light components fall into the receiving hopper for final export, and the heavy components are downwards transferred to the receiving ring groove for final export along with the scraping of the scraper.
Further, still be provided with in the jar body with inner tube up end fixed connection's rotor plate, the rotor plate be located the top of scraper and with jar internal wall sliding connection, rotor plate vertical fixedly connected with upwards extends to the external axis of rotation of jar, still fixedly connected with cloth dish that the back-off set up in the axis of rotation, still fixedly connected with inlet pipe just on the jar body the inlet pipe still is connected with and is located jar internal and with the material spray the ejection of compact subassembly on the cloth dish.
Further, the discharging component comprises a ring pipe which surrounds the outside of the distribution plate and is communicated with the feeding pipe, a plurality of spray heads are fixedly connected to the inner annular wall of the ring pipe, and the outlet of each spray head is obliquely aligned downwards to the surface of the distribution plate.
Further, a plurality of spiral grooves extending from the upper end to the lower end of the disc surface are also formed in the disc surface, and materials are guided to the arc-shaped surface through the grooves after being sprayed out by the spray head.
Further, the heating cavity is surrounded by the outer wall of the tank body and the shell fixedly connected with the outer wall of the tank body, the lower end of the shell is fixedly connected with a first inlet pipe, the upper end of the shell is fixedly connected with a first outlet pipe, a spiral heat exchange pipe is further arranged in the heating cavity, and the upper end and the lower end of the heat exchange pipe penetrate out of the upper end and the lower end of the shell respectively.
Further, a first delivery pipe communicated with the material receiving ring groove and a second delivery pipe communicated with the material receiving hopper are fixedly connected to the tank body.
Further, the condensation assembly comprises an upper plate pipe and a lower plate pipe which are slidably connected with the inner wall of the inner cylinder, and a plurality of vertical pipes connected between the upper plate pipe and the lower plate pipe, wherein the upper plate pipe is also connected with a second inlet pipe, the lower plate pipe is also connected with a second outlet pipe, and the second inlet pipe and the second outlet pipe are all penetrated from the lower end of the inner cylinder and extend out of the tank body, and the second inlet pipe is disconnected with the lower plate pipe.
Further, the condensing assembly further comprises a spiral pipe which surrounds all the vertical pipes and is positioned in the inner cylinder, and two ends of the spiral pipe are respectively connected with the upper plate pipe and the lower plate pipe.
Further, the upper end of the material receiving ring groove is fixedly connected with a rotary supporting ring, and the lower end of the inner cylinder is in sliding connection with the rotary supporting ring; and a guide plate positioned at the lower end of the inner cylinder is fixedly connected between two adjacent scrapers, each guide plate is obliquely arranged and fixedly connected with the inner cylinder, and all the first through holes are positioned above the guide plates.
Further, the tank body is fixedly connected with a mounting ring plate arranged below the material receiving ring groove, the material receiving hopper is arranged below the mounting ring plate and fixedly connected with the inner ring wall of the mounting ring plate, the mounting ring plate is fixedly connected with a guide ring and the vertical projection of the inner cylinder is arranged in the guide ring, the mounting ring plate is provided with a plurality of second through holes encircling the guide ring, and the tank body is fixedly connected with a connecting pipe arranged below the mounting ring plate.
Compared with the prior art, the invention has the following beneficial effects:
the condensing assembly is arranged in the inner cylinder, the evaporated gas component is led into the inner cylinder to be condensed, so that the condensing efficiency is higher, and meanwhile, the arc surface is arranged to improve the heating efficiency, so that the separation efficiency of the light component and the heavy component is improved, and the yield of the light component (namely a target product) is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the partial structure at A in FIG. 1;
FIG. 3 is a schematic top view of a distribution tray according to an embodiment of the present invention;
FIG. 4 is a schematic view of the inner structure of an inner cylinder according to an 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 figures:
the novel heating 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 distributing disc 13, a material feeding pipe 14, a material distributing 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 scheme of the invention is further described below with reference to the accompanying drawings and examples.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
As shown in fig. 1, 2, 3 and 4, the embodiment provides a short-range distiller for producing fatty amide, which comprises a tank body 1, wherein a heating cavity 2 is circumferentially arranged at the outer side of the middle section of the tank body 1, an inner cylinder 3 is rotationally arranged in the tank body 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 body 1, wherein the upper end of the scraper 4 is positioned above the heating cavity 2, the inner wall of the tank body 1 between the scraper 4 and the heating cavity 2 is an arc-shaped surface 5, the scraper 4 which is matched with the arc-shaped surface 5 is also in sliding contact, when the inner cylinder 3 rotates, the scraper 4 is driven to rotate, namely, the material on the arc-shaped surface 5 is scraped, and the material forms a film on the arc-shaped surface 5 along with the scraping, so that the heating efficiency is higher, and meanwhile, the evaporation area is increased due to the arrangement of the arc-shaped surface 5, and the evaporation efficiency is also improved;
the inner cylinder 3 is internally provided with a condensation component, the inner cylinder 3 is also provided with a plurality of first through holes 6, the first through holes 6 are used for allowing evaporated gas to pass through so as to enable light components to enter the inner cylinder 3 for condensation, and the outer wall of the inner cylinder 3 also bears a certain condensation function, so that the overall 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 which flow 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 also arranged in the tank body 1, and the material receiving hopper 8 is used for receiving the condensed light components; the tank body 1 is also fixedly connected with a first delivery pipe 9 communicated with the material receiving ring groove 7 and a second delivery pipe 10 communicated with the material receiving hopper 8, the first delivery pipe 9 is used for delivering heavy components, and the second delivery pipe 10 is used for delivering light components (namely target products).
In the above embodiment, the heating cavity 2 is filled with a heating medium, the material is heated by the arc surface 5, the light components are evaporated into the inner cylinder 3 for condensation after the material is heated, and the light components fall into the receiving hopper 8 for final export, and the heavy components are downwards transferred to the receiving ring groove 7 for final export 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, a rotating shaft 12 extending upwards out of the tank body 1 is vertically and fixedly connected with the rotating plate 11, the upper end of the rotating shaft 12 is connected with an external motor, and the motor can drive the rotating plate and the inner cylinder 3 to rotate through the rotating shaft 12;
the rotary shaft 12 is also fixedly connected with a material distribution plate 13 which is reversely buckled, the tank body 1 is also fixedly connected with a feed pipe 14, and the feed pipe 14 is also connected with a discharge assembly which is positioned in the tank body 1 and sprays materials on the material distribution plate 13. The material outside the tank body 1 is led in through the feed pipe 14 and then is dispersed on the arc surface 5 through the distribution plate 13, specifically, the junction of the rotating plate and the distribution plate 13 is smooth excessive and is of an arc structure, so that the material can be filled in the distribution groove 15 which is approximately V-shaped between the arc structure and the inner wall of the tank body 1, and then is continuously downwards guided onto the arc surface 5 along with rotation, thereby ensuring that the material distribution on the arc surface 5 is more uniform, and realizing uniform evaporation operation.
As shown in fig. 1 and 3, the discharging assembly comprises a collar 16 surrounding the outer surface of the distribution plate 13 and communicated with the feeding pipe 14, a plurality of spray heads 17 are fixedly connected to the inner annular wall of the collar 16, and the outlet of each spray head 17 is obliquely aligned downwards to the surface of the distribution plate 13. The spray heads 17 are arranged around the distribution plate 13 along with the annular pipe 16, the materials are sprayed downwards in an inclined way, so that the materials can be sprayed onto the distribution plate 13 more uniformly, further, in order to prevent the materials from forming a flow gathering in the process of sliding up and down the distribution plate 13, a plurality of spiral grooves 18 extending from the upper end to the lower end of the distribution plate are further arranged on the surface, the materials are sprayed out through the spray heads 17 and then guided onto the arc-shaped surface 5 through the grooves 18, after the materials are sprayed, the materials on the surface of the spray heads flow into the grooves 18 and then flow into the distribution plate 15 through the grooves 18, the grooves 18 are distributed on the distribution plate 13 at equal intervals, and further, the excessive or excessively small quantity of a certain section in the distribution plate 15 is avoided, so that the materials are more uniformly distributed; in particular, the middle disc surface of the distribution disc 13 is concave inwards, so that the too fast flow velocity of the materials in the grooves 18 can be avoided, and meanwhile, the materials on the disc surfaces between two adjacent grooves 18 can be more easily gathered into the grooves 18.
As shown in fig. 1, the heating chamber 2 is surrounded by an outer wall of the tank 1 and a housing 19 fixedly connected with the outer wall, a first inlet pipe 20 is fixedly connected to a lower end of the housing 19, a first outlet pipe 21 is fixedly connected to an upper end of the housing, a spiral heat exchange pipe 22 is further arranged in the heating chamber 2, and upper and lower ends of the heat exchange pipe 22 penetrate out from upper and lower ends of the housing 19 respectively. The first inlet pipe 20 is used for guiding in heat exchange medium, the first outlet pipe 21 is used for guiding out heat exchange medium, the arc-shaped surface 5 is heated by the heat exchange medium, the heat exchange pipe 22 is arranged 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 reheating to a required temperature, thus, a great amount of heat energy loss caused by the heat exchange medium in the process of transporting outside the distiller can be avoided, and likewise, the adopted heat exchange pipe 22 can be replaced by an electric heating pipe to directly electrically heat the heat exchange medium, thus, the heat loss of the medium in the heat exchange pipe 22 in the process of transporting outside the evaporator can be prevented, and the energy consumption of the evaporator can be further reduced.
As shown in fig. 1 and 4, the condensing assembly comprises an upper plate pipe 23 and a lower plate pipe 24 which are slidably connected with the 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, wherein the upper plate pipe 23 and the lower plate pipe 24 are hollow, two ends of each vertical pipe 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, and the second inlet pipe 26 and the second outlet pipe 27 penetrate from the lower end of the inner cylinder 3 and extend out of the tank body 1, and the second inlet pipe 26 is disconnected with the lower plate pipe 24. The second inlet pipe 26 guides the condensing medium into the upper plate pipe 23, enters the vertical pipe 25 after passing through the upper plate pipe 23, then is converged into the lower plate pipe 24, and finally is guided out of the tank body 1 through the second outlet pipe 27, and the condensing assembly arranged in this way enables evaporated gas to be fully contacted with the vertical pipe 25, and besides the outer wall and the inner wall of the inner cylinder 3, the condensing area is further increased, so that the condensing efficiency is improved.
Further, as shown in fig. 4, the condensing assembly further includes a spiral pipe 28 surrounding all of the standpipes 25 and located in the inner cylinder 3, and both ends of the spiral pipe 28 are connected to the upper plate pipe 23 and the lower plate pipe 24, respectively. The spiral pipe 28 is communicated with the upper plate pipe 23 and the lower plate pipe 24 as the vertical pipe 25, and the spiral pipe 28 is closer to the inner wall of the inner cylinder 3, so that the spiral pipe 28 can cool the inner cylinder 3, and the cooling efficiency of the inner cylinder 3 is improved.
As shown in fig. 1, 4 and 5, the upper end of the material receiving ring groove 7 is fixedly connected with a rotary supporting ring 29, the lower end of the inner cylinder 3 is slidably connected with the rotary supporting ring 29, and the rotary supporting ring 29 enables the lower end of the inner cylinder 3 to be supported, so that the scraper 4 and the inner cylinder 3 can rotate more stably;
in order to avoid loss of a small amount of condensed light components on the outer wall of the inner cylinder 3, guide plates 30 positioned at the lower end of the inner cylinder 3 are fixedly connected between two adjacent scrapers 4, each guide plate 30 is obliquely arranged and fixedly connected with the inner cylinder 3, all the first through holes 6 are positioned above the guide plates 30, so that the light components can be prevented from directly sliding into the material receiving ring grooves 7 along with the outer wall, the arranged guide plates 30 and the scrapers 4 at the two sides of the guide plates are intercepted, and then enter the inner cylinder 3 through the first through holes 6, and finally enter the material receiving hopper 8.
As shown in fig. 1, the tank body 1 is further fixedly connected with a mounting ring plate 31 located below the material receiving ring groove 7, the material receiving hopper 8 is located below the mounting ring plate 31 and fixedly connected with the inner ring wall of the mounting ring plate 31, so that the position of the material receiving hopper 8 is fixed, the mounting ring plate 31 is further fixedly connected with a guide ring 32 and the vertical projection of the inner cylinder 3 is in the guide ring 32, the mounting ring plate 31 is further provided with a plurality of second through holes encircling the guide ring 32, and the tank body 1 is further fixedly connected with a connecting pipe 33 located below the mounting ring plate 31. The connecting pipe 33 that sets up is used for being connected with vacuum equipment to realize jar body 1's evacuation operation, specifically, during the evacuation, realize the intercommunication of inner space through the second through-hole in jar body 1, make whole jar body 1 be in the vacuum environment, specifically, the vertical projection of inner tube 3 is located water conservancy diversion ring 32, can avoid the light component of condensation to fall outside the water conservancy diversion ring 32.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and 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 and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a fatty amide production is with short-range distiller, its characterized in that includes a jar body, jar body middle section outside is encircled and is provided with the heating chamber, the internal rotation of jar is provided with the inner tube, fixedly connected with scraper on the inner tube outer wall, the scraper with jar internal wall offsets, wherein the upper end of scraper is located on the heating chamber just the scraper with the jar internal wall between the heating chamber is the arcwall face, be provided with condensation subassembly in the inner tube just still be provided with a plurality of first through-holes on the inner tube, still fixedly connected with is located on the jar internal wall the annular material annular that connects of scraper below connects the material annular, still be provided with in the jar body and be located connect the hopper that connects the material annular below;
the condensing assembly comprises an upper plate pipe and a lower plate pipe which are in sliding connection with the inner wall of the inner cylinder, and a plurality of vertical pipes connected between the upper plate pipe and the lower plate pipe, wherein the upper plate pipe is also connected with a second inlet pipe, the lower plate pipe is also connected with a second outlet pipe, the second inlet pipe and the second outlet pipe penetrate out of the lower end of the inner cylinder and extend out of the tank body, and the second inlet pipe is disconnected with the lower plate pipe;
the condensing assembly further comprises a spiral pipe which surrounds all the vertical pipes and is positioned in the inner cylinder, and two ends of the spiral pipe are respectively connected with the upper plate pipe and the lower plate pipe;
the upper end of the material receiving ring groove is fixedly connected with a rotary supporting ring, and the lower end of the inner cylinder is in sliding connection with the rotary supporting ring; a guide plate positioned at the lower end of the inner cylinder is fixedly connected between two adjacent scrapers, each guide plate is obliquely arranged and fixedly connected with the inner cylinder, and all the first through holes are positioned above the guide plates;
the tank body is internally and fixedly connected with a mounting ring plate positioned below the material receiving ring groove, the material receiving hopper is positioned below the mounting ring plate and fixedly connected with the inner ring wall of the mounting ring plate, the mounting ring plate is fixedly connected with a guide ring, the vertical projection of the inner cylinder is positioned in the guide ring, the mounting ring plate is also provided with a plurality of second through holes encircling the guide ring, and the tank body is also fixedly connected with a connecting pipe positioned below the mounting ring plate; the novel scraper is characterized in that a rotating plate fixedly connected with the upper end face of the inner cylinder is further arranged in the tank body, the rotating plate is located above the scraper and is in sliding connection with the inner wall of the tank body, the rotating plate vertically and fixedly connected with extends upwards to a rotating shaft outside the tank body, a material distributing disc arranged in a back-off mode is fixedly connected to the rotating shaft, a material feeding pipe is fixedly connected to the tank body, and the material feeding pipe is further connected with a material discharging assembly located in the tank body and used for spraying materials on the material distributing disc.
2. The short-range distiller for producing fatty acid amide according to claim 1, wherein the discharging assembly comprises a circular pipe which surrounds the outside of the distribution plate and is communicated with the feeding pipe, a plurality of spray heads are fixedly connected to the inner annular wall of the circular pipe, and the outlet of each spray head is obliquely aligned downwards to the surface of the distribution plate.
3. The short-range distiller for producing fatty amide according to claim 2 wherein the disk surface is further provided with a plurality of spiral grooves extending from the upper end to the lower end thereof, and the material is guided to the arcuate surface through the grooves after being sprayed out by the spray head.
4. The short-range distiller for fatty amide production of claim 3, wherein the heating cavity is surrounded by the outer wall of the tank body and a shell fixedly connected with the outer wall of the tank body, the lower end of the shell is fixedly connected with a first inlet pipe, the upper end of the shell is fixedly connected with a first outlet pipe, a spiral heat exchange pipe is further arranged in the heating cavity, and the upper end and the lower end of the heat exchange pipe penetrate out of the upper end and the lower end of the shell respectively.
5. The short-range distiller for producing fatty acid amide of claim 1 wherein the tank is also fixedly connected with a first delivery tube in communication with the receiving ring groove and a second delivery tube in communication with the receiving hopper.
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 CN114146436A (en) | 2022-03-08 |
| CN114146436B true CN114146436B (en) | 2023-06-27 |
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