阅读说明：本技术 一种半短程式蒸发器 (Half short stroke formula evaporimeter ) 是由 晏义锋 王�锋 赵玉东 赵哲敏 吴海青 于 2021-09-08 设计创作，主要内容包括：本发明涉及分子蒸馏技术领域,具体的说是一种半短程式蒸发器,包括蒸发室、搅笼、物料分布盘、循环水冷凝管和冷阱盘室,上部是薄膜蒸发器的模式,下部是短程蒸发器的模式,一台设备发挥了两台台不同设备的作用,该半短程式蒸发器能高效快速的脱除游离甘油和低碳链脂肪酸酯,起到了减少生产单硬脂酸甘油酯设备组件,减少控制单元,降低投资成本,降低生产能耗,提高产品质量的作用,同时也降低了控制难度,使整个生产过程简单高效,自动化程度高。(The invention relates to the technical field of molecular distillation, in particular to a half short-path evaporator which comprises an evaporation chamber, a stirring cage, a material distribution disc, a circulating water condensation pipe and a cold trap disc chamber, wherein the upper part is in a mode of a thin film evaporator, and the lower part is in a mode of a short-path evaporator.)

1. The utility model provides a half short form evaporimeter, includes evaporating chamber (1), stirs cage (2), material distribution dish (3), circulation water condensation pipe (5) and cold-trap dish room (26), its characterized in that: the evaporation chamber (1) is of a sealed tank-shaped structure, a stirring cage (2) is rotationally matched in the evaporation chamber (1), a material distribution disc (3) is installed at the top of the stirring cage (2), a circulating water condensation pipe (5) is installed and fixed at a position close to the bottom end in the evaporation chamber (1), a cold trap chamber (26) is connected at a position close to the top of one side of the evaporation chamber (1), and the interior of the evaporation chamber (1) is communicated with the interior of the cold trap chamber (26);

the heating device comprises an evaporation chamber (1), a material inlet (32) and a heating medium outlet (7), wherein the top of the evaporation chamber (1) is provided with the material inlet (32), the material inlet (32) is communicated with a material distribution disc (3) through a pipeline, two outer side walls of the evaporation chamber (1) are respectively provided with the heating medium inlet (6) and the heating medium outlet (7), the heating medium inlet (6) is positioned at the lower half part of the evaporation chamber (1), the heating medium outlet (7) is positioned at the upper half part of the evaporation chamber (1), a glycerol removal material outlet (13) is arranged at a position, close to the bottom, of one side of the evaporation chamber (1), and the bottom of the evaporation chamber (1) is provided with a secondary glycerol outlet (12);

the stirring cage (2) is of a cylindrical structure, a plurality of diversion scrapers (4) are arranged on the periphery of the stirring cage (2) in an equal radian manner, and one sides of the diversion scrapers (4) far away from the stirring cage (2) are tightly attached to the inner wall of the evaporation chamber (1);

an evaporation material guide opening (22) is formed in the top of the material distribution disc (3), material guide vanes (23) are fixed in the evaporation material guide opening (22) at equal radians, and a plurality of material distribution holes (20) are formed in the inner side wall of the material distribution disc (3) at equal radians;

the circulating water condensation pipe (5) is formed by communicating a plurality of vertically parallel water pipes, a first circulating water inlet (10) and a first circulating water outlet (11) are formed in the bottom of the circulating water condensation pipe (5), and the first circulating water inlet (10) and the first circulating water outlet (11) are both positioned on the outer side of the bottom of the evaporation chamber (1);

cold trap room (26) is hollow tank structure, one side that is close to evaporating chamber (1) of cold trap room (26) is equipped with connection siphunculus (28), the one end of keeping away from cold trap room (26) is connected with evaporating chamber (1) and is link up in connection siphunculus (28), install cold trap coil pipe (27) in cold trap room (26), the top of cold trap coil pipe (27) is connected with the second circulating water and leads to entry (14) and second circulating water discharge port (15), the second circulating water leads to entry (14) and second circulating water discharge port (15) and all is located the cold trap room (26) top outside, the bottom of cold trap room (26) is equipped with one-level glycerine discharge port (16), vacuum generator (19) are installed to one side of cold trap room (26).

2. A half-short-stroke evaporator according to claim 1, wherein: the top fixed mounting of evaporating chamber (1) has support frame (31), and motor (29) are vertically installed at the top of support frame (31), and the bottom of motor (29) is equipped with pivot (30), and pivot (30) run through the top of evaporating chamber (1), and the bottom and the material distribution dish (3) of pivot (30) are connected.

3. A half-short-stroke evaporator according to claim 2, wherein: a speed reducer is fixed on the support frame (31), the speed reducer is installed between the motor (29) and the rotating shaft (30), and the mechanical sealing sleeve (25) is installed at the position where the rotating shaft (30) penetrates through the evaporation chamber (1).

4. A half-short stroke evaporator according to claim 3 wherein: stirring shaft hole (24) have been seted up at the top center of material distribution dish (3), and stirring shaft hole (24) are run through to the bottom of pivot (30), and one end screw-thread fit that pivot (30) run through stirring shaft hole (24) has locking bolt (18).

5. A half-short-stroke evaporator according to claim 1, wherein: stir radian such as the lateral wall of cage (2) and seted up a plurality of material and scrape board groove (21), the one end that is close to of a plurality of water conservancy diversion scraper blade (4) and stirs cage (2) all welded fastening has scraper blade connecting strip (401), a plurality of scraper blade connecting strip (401) respectively sliding fit in a plurality of material scrapes board groove (21), radian such as a plurality of scraper blade connecting strip (401) are installed through a plurality of water conservancy diversion scraper blade (4) and are being stirred the cage (2) outside.

6. A half-short stroke evaporator according to claim 5 wherein: the cross sections of the material scraper grooves (21) and the scraper connecting strips (401) are of T-shaped structures, and the scraper connecting strips (401) are respectively matched with the material scraper grooves (21) in size and length.

7. A half-short stroke evaporator according to claim 6 wherein: the end, far away from the stirring cage (2), of each of the diversion scrapers (4) is of an arc structure, and the radian, far away from the end of the stirring cage (2), of each of the diversion scrapers (4) is identical to that of the inner wall of the evaporation chamber (1).

8. A half-short-stroke evaporator according to claim 1, wherein: evaporating chamber (1) is inside to be located material distribution dish (3) top and is equipped with evaporation chamber (17), one side that evaporating chamber (1) is close to cold trap room (26) is equipped with the connecting pipe, the connecting pipe is inside to link up with evaporation chamber (17), the one end and the connecting pipe (28) fixed connection of evaporating chamber (1) are kept away from to the connecting pipe, and the connecting pipe is inside to link up with connecting pipe (28), evaporating chamber (1) both sides are equipped with steam respectively and lead to entry (8) and steam outlet (9), steam leads to entry (8) and steam outlet (9) and all is located the lower half of evaporating chamber (1).

9. A half-short-stroke evaporator according to claim 1, wherein: the circulating water condenser pipe (5) comprises a condenser wall (501), an upper cover plate (505) and a collecting base plate (508), the section of the condenser wall (501) is spirally arranged, a water supply pipe (504) is vertically arranged in the center of the condenser wall (501), the bottom end of the water supply pipe (504) is connected and communicated with a first circulating water inlet (10), a plurality of condensation tubules (503) are embedded in the condenser wall (501) from the top to the bottom at equal intervals, a plurality of flow grooves (502) are vertically arranged on the inner side and the outer side of the condenser wall (501) at equal intervals, the top of the condenser wall (501) is provided with the upper cover plate (505), the top of the upper cover plate (505) is provided with a heat insulation interlayer, a distributive pipe (506) is spirally arranged at the bottom of the upper cover plate (505), one end of the distributive pipe (506) is in a closed state, the other end of the distributive pipe (506) is connected and communicated with the water supply pipe (504), a plurality of distributive ports (507) are arranged at equal intervals at the bottom of the distributive pipe (506), a plurality of water diversion mouth (507) link up with the top of a plurality of condensation tubule (503) respectively, the bottom of condensation wall (501) is fixed with collects chassis (508), it communicates chute (502) and second grade glycerine discharge port (12) to set up a plurality of channels on chassis (508) to collect, the bottom of collecting chassis (508) is provided with the heat preservation interlayer, it has catchment pipe (509) to collect chassis (508) top spiral setting, the one end of catchment pipe (509) is the encapsulated situation, the other end and first circulating water discharge port (11) of catchment pipe (509) are connected and are link up, the top of catchment pipe (509) is equidistant to be provided with a plurality of catchment mouth (510), a plurality of catchment mouth (510) are connected with the bottom of condensation tubule (503) respectively and are link up.

10. A half-short-stroke evaporator according to claim 1, wherein: the using method of the semi-short-range evaporator specifically comprises the following steps:

the method comprises the following steps: the stirring cage (2) of the semi-short evaporator is driven by a motor (29) to rotate, materials are fed into the evaporation chamber (1) through a material inlet (32), the mixed materials fall onto the material distribution disc (3) after entering the evaporation chamber (1), the mixed materials on the material distribution disc (3) are uniformly thrown onto the inner wall of the evaporation chamber (1) through centrifugal force through the material distribution holes (20) by the rotating stirring cage (2), the diversion scraper blade (4) is driven to rotate through the rotating stirring cage (2), the materials are forcibly scraped into a film by the rotating diversion scraper blade (4), and free glycerin and low-carbon-chain fatty acid ester of the mixed materials on the inner wall of the evaporation chamber are continuously evaporated in the downward flowing process through the heating medium inlet (6) and the heating medium outlet (7) in a circulating manner;

step two: the free glycerin evaporated from the upper part of the evaporation chamber (1) is pushed by an evaporation material guide vane (23) at an evaporation material guide opening (22), enters a cold trap (26) through an evaporation cavity (17), provides a lower temperature for a cold trap coil (27) through a second circulating water inlet (14) and a second circulating water outlet (15), condenses the gaseous free glycerin, and enters a glycerin storage tank for recovery through a first-stage glycerin outlet (16);

step three: free glycerin and low-carbon chain fatty acid ester evaporated from the lower part of the evaporation chamber (1) contact with the circulating water condensation pipe (5) in the free evaporation process, the circulating water condensation pipe (5) is kept at a low temperature through the continuous cold water of the first circulating water inlet (10) and the second circulating water outlet (11), and the evaporated glycerin and fatty acid ester are condensed and enter the glycerin storage tank from the second-level glycerin outlet (12) to be recycled.

Technical Field

The invention relates to the technical field of molecular distillation, in particular to a half-short-stroke evaporator.

Background

The equipment in the production of molecular distillation glycerin monostearate generally combines a plurality of film evaporators and short-range evaporators, separates materials with different components when the materials flow through each evaporation equipment by utilizing different control temperatures and vacuum degrees, and finally obtains a product which meets the control target. The existing molecular distillation glycerin monostearate system equipment of various manufacturers generally removes water vapor by a first-stage flash evaporation, removes partial free glycerin by a second-stage film evaporator, removes partial free glycerin by a third-stage film evaporator, removes a small amount of free glycerin and low-carbon fatty acid ester by a fourth-stage short-path evaporator, and separates glycerin monostearate by a fifth-stage short-path evaporator. The device has a plurality of components, high energy consumption and complex control.

Aiming at the conditions of more components, complex control and high energy consumption of the conventional molecular distillation glyceryl monostearate production equipment, the invention provides the half-short-path evaporator which is applied to the molecular distillation glyceryl monostearate production, can reduce the production equipment components, reduce the energy consumption, greatly reduce the control difficulty, and ensure that the whole production process is simple and efficient and has high automation degree.

Disclosure of Invention

To solve the problems of the prior art, the present invention provides a half-short-stroke evaporator.

The technical scheme adopted by the invention for solving the technical problems is as follows: a half short-range evaporator comprises an evaporation chamber, a stirring cage, a material distribution disc, a circulating water condensation pipe and a cold trap disc chamber, wherein the evaporation chamber is of a sealed tank-shaped structure, the stirring cage is rotatably matched in the evaporation chamber, the material distribution disc is installed at the top of the stirring cage, the circulating water condensation pipe is fixedly installed at the position, close to the bottom end, in the evaporation chamber, the position, close to the top, of one side of the evaporation chamber is connected with the cold trap chamber, and the interior of the evaporation chamber is communicated with the interior of the cold trap chamber;

the device comprises an evaporation chamber, a material distribution disc, a heating medium inlet, a material inlet, a heating medium outlet, a glycerol removal material outlet and a secondary glycerol outlet, wherein the top of the evaporation chamber is provided with the material inlet, the material inlet is communicated to the material distribution disc through a pipeline, the two outer side walls of the evaporation chamber are respectively provided with the heating medium inlet and the heating medium outlet, the heating medium inlet is positioned at the lower half part of the evaporation chamber, the heating medium outlet is positioned at the upper half part of the evaporation chamber, one side of the evaporation chamber close to the bottom is provided with the glycerol removal material outlet, and the bottom of the evaporation chamber is provided with the secondary glycerol outlet;

the stirring cage is of a cylindrical structure, a plurality of diversion scrapers are arranged on the periphery of the stirring cage in an equal radian manner, and one sides of the diversion scrapers far away from the stirring cage are tightly attached to the inner wall of the evaporation chamber;

the top of the material distribution disc is provided with an evaporation material flow guide port, a material flow guide blade is fixed in the evaporation material flow guide port at an equal radian, a plurality of material distribution holes are formed in the inner side wall of the material distribution disc at an equal radian, and the speed of flowing of free glycerin evaporated in the evaporation chamber can be increased by pushing the material distribution holes through the blade;

the circulating water condensation pipe is formed by communicating a plurality of vertically parallel water pipes, a first circulating water inlet and a first circulating water outlet are formed in the bottom of the circulating water condensation pipe, and the first circulating water inlet and the first circulating water outlet are both positioned on the outer side of the bottom of the evaporation chamber;

the cold trap room is hollow tank structure, the one side that is close to the evaporating chamber of cold trap room is equipped with the connection siphunculus, the one end that the cold trap room was kept away from to the connection siphunculus is connected with the evaporating chamber and is link up, the indoor cold trap coil pipe that installs of cold trap, the top of cold trap coil pipe is connected with the second circulating water and leads to entry and second circulating water discharge port, the second circulating water leads to entry and second circulating water discharge port and all is located the cold trap roof portion outside, the bottom of cold trap room is equipped with one-level glycerine discharge port, vacuum generator is installed to one side of cold trap room, can guarantee through the vacuum generator on the cold trap room that the evaporimeter is in the vacuum that a normal production required all the time, through setting up the cold trap room, makes this half short stroke evaporimeter can reduce the product process that originally needs five-stage distillation to separate as long as far as tertiary distillation.

Preferably, the top fixed mounting of evaporating chamber has the support frame, and the vertical motor of installing in top of support frame, the bottom of motor are equipped with the pivot, and the pivot runs through the top of evaporating chamber, and the bottom and the material distribution dish of pivot are connected.

Preferably, a speed reducer is fixed on the support frame, the speed reducer is installed between the motor and the rotating shaft, the rotating shaft penetrates through the evaporation chamber and is provided with a mechanical sealing sleeve, and the mechanical sealing sleeve is arranged to improve the airtightness of the inside of the evaporation chamber of the evaporator, so that a reliable production environment is provided for the processing of the evaporator, and the use reliability of the evaporator is improved.

Preferably, the stirring shaft hole has been seted up at the top center of material distribution dish, and the stirring shaft hole is run through to the bottom of pivot, and the pivot runs through the one end screw-thread fit in stirring shaft hole and has a locking bolt, is connected material distribution dish and pivot through using locking bolt, makes to dismantle more convenient simple between material distribution dish and the pivot, facilitates for subsequent maintenance and change accessory, through the convenience that improves subsequent maintenance and change accessory.

Preferably, stir radians such as the lateral wall of cage and seted up a plurality of material and scrape the board groove, the one end that is close to of a plurality of water conservancy diversion scraper blade and stirs the cage is all welded fastening has the scraper blade connecting strip, a plurality of scraper blade connecting strip is sliding fit at a plurality of material scraper blade inslot respectively, a plurality of water conservancy diversion scraper blade is installed in stirring the cage outside through radians such as a plurality of scraper blade connecting strip, scrape the board groove through setting up the material and carry out the installation of water conservancy diversion scraper blade, make the installation of water conservancy diversion scraper blade simple and convenient more, and simultaneously, the wearing and tearing appear at the use most easily in the water conservancy diversion scraper blade, it is simple convenient through the change that makes the water conservancy diversion scraper blade, and simultaneously, also provide the assurance for evaporimeter production process.

Preferably, a plurality of material scrapes the cross section of board groove and a plurality of scraper blade connecting strip and all is "T" style of calligraphy structure, and a plurality of scraper blade connecting strip scrape board groove size length looks adaptation with a plurality of material respectively.

Preferably, the one end that a plurality of water conservancy diversion scraper blade kept away from and stirs the cage all is the arc structure, and a plurality of water conservancy diversion scraper blade keeps away from the radian that stirs cage one end and the evaporating chamber inner wall radian is the same, through set up the radian in water conservancy diversion scraper blade one end, makes water conservancy diversion scraper blade and evaporating chamber inner wall laminate more, and then makes thinner that the water conservancy diversion scraper blade scraped the combined material, improves the speed of evaporation.

Preferably, the evaporation chamber is internally provided with an evaporation cavity above the material distribution disc, one side of the evaporation chamber close to the cold trap chamber is provided with a connecting pipe, the connecting pipe is communicated with the inside of the evaporation cavity, one end of the connecting pipe far away from the evaporation chamber is fixedly connected with a connecting through pipe, the connecting pipe is communicated with the inside of the connecting through pipe, two sides of the evaporation chamber are respectively provided with a steam inlet and a steam outlet, and the steam inlet and the steam outlet are both positioned at the lower half part of the evaporation chamber.

Preferably, the circulating water condensation pipe comprises a condensation wall, an upper cover plate and a collecting chassis, the cross section of the condensation wall is spirally arranged, a water feeding pipe is vertically arranged in the center of the condensation wall, the bottom end of the water feeding pipe is connected and communicated with a first circulating water inlet, a plurality of condensation tubules are embedded into the condensation wall from the top to the bottom at equal intervals, a plurality of flow grooves are vertically formed in the inner side and the outer side of the condensation wall at equal intervals, an upper cover plate is arranged at the top of the condensation wall, a heat preservation interlayer is arranged at the top of the upper cover plate, a water diversion pipe is spirally arranged at the bottom of the upper cover plate, one end of the water diversion pipe is in a closed state, the other end of the water diversion pipe is connected and communicated with the water feeding pipe, a plurality of water diversion ports are arranged at equal intervals at the bottom of the water diversion pipe, the plurality of water diversion ports are respectively connected and communicated with the tops of the plurality of condensation tubules, the collecting chassis is provided with a plurality of channels for communicating the flow grooves with a second-level glycerol discharge port, the bottom of the collecting chassis is provided with a heat-insulating interlayer, the top of the collecting chassis is spirally provided with a water collecting pipe, one end of the water collecting pipe is in a closed state, the other end of the water collecting pipe is connected and communicated with a first circulating water outlet, the top of the water collecting pipe is provided with a plurality of water collecting ports at equal intervals, the plurality of water collecting ports are respectively connected and communicated with the bottom of a condensation tubule, through arranging a runner, evaporated glycerin and fatty acid ester after condensation can be better drained, the collection efficiency of the evaporated glycerin and fatty acid ester is higher, through arranging the condensation wall in a spiral mode, the surface area of the circulating water condensation pipe can be improved, further the contact surface of the evaporated glycerin and fatty acid ester and the circulating water condensation pipe is increased, further the condensation speed is improved, through arranging the condensation tubule in the condensation wall, and arranging a water dividing pipe and a collecting pipe, cold water entering the circulating water condensation pipe can synchronously circulate downwards from the condensation wall, further, the surface temperature of the condensation wall is more uniform, and the condensation and aggregation of the condensation in a local supercooling area are avoided, so that the quality of the condensation evaporation glycerin and the fatty acid ester is influenced.

Preferably, the use method of the semi-short-path evaporator specifically comprises the following steps:

the method comprises the following steps: the stirring cage of the half-short evaporator is rotated by the driving of a motor, materials are fed into the evaporation chamber through the material inlet, the mixed materials fall onto the material distribution disc after entering the evaporation chamber, the mixed materials on the material distribution disc are uniformly thrown onto the inner wall of the evaporation chamber through centrifugal force through the material distribution holes by the rotating stirring cage, the rotating stirring cage drives the diversion scraper blade to rotate, the rotating diversion scraper blade forcibly scrapes the materials into a film, and free glycerin and low-carbon fatty acid ester of the mixed materials on the inner wall of the evaporation chamber are continuously evaporated in the downward flowing process through the heat energy circularly provided by the heating medium inlet and the heating medium outlet;

step two: the free glycerin evaporated at the upper part of the evaporation chamber is pushed by the evaporation material guide vane at the evaporation material guide opening, enters the cold trap through the evaporation cavity, provides a lower temperature for a coil pipe of the cold trap through a second circulating water inlet and a second circulating water outlet, condenses the gaseous free glycerin, and enters the glycerin storage tank through a first-stage glycerin outlet for recycling;

step three: the free glycerin and the low-carbon chain fatty acid ester evaporated from the lower part of the evaporation chamber contact with the circulating water condensation pipe in the free evaporation process, the circulating water condensation pipe is kept at a low temperature through the continuous cold water at the first circulating water inlet and the second circulating water outlet, and the evaporated glycerin and the fatty acid ester are condensed and enter the glycerin storage tank from the second-level glycerin outlet for recovery.

The invention has the beneficial effects that:

(1) the semi-short evaporator of the invention connects the material distribution disc with the rotating shaft by using the locking bolt, so that the disassembly between the material distribution disc and the rotating shaft is more convenient and simpler, the subsequent maintenance and the replacement of accessories are facilitated, the service life of the semi-short evaporator is prolonged by improving the convenience of the subsequent maintenance and the replacement of the accessories, the installation of the diversion scraper is simpler and more convenient by arranging the material scraper groove, the service life of the evaporator is further prolonged, meanwhile, the diversion scraper is most easily worn in the use process, the convenience of the use of the evaporator is improved by simply and conveniently replacing the diversion scraper, meanwhile, the production process of the evaporator is also ensured, the sealing performance in the evaporator chamber is improved by arranging the mechanical sealing sleeve, and then provide reliable production environment for the processing of this evaporimeter, thereby improve the reliability that this evaporimeter used, set up the condensation wall through the spiral, can improve the surface area of this circulating water condenser pipe, and then increase the contact surface of evaporation glycerine and fatty acid ester and circulating water condenser pipe, and then improve the speed of condensation, thereby further improve the efficiency that this evaporimeter used, through set up the condensation tubule in the condensation wall, and set up distributive pipe and collection pipe, make the cold water that gets into in the circulating water condenser pipe can be synchronous from the condensation wall downward circulation, and then make condensation wall surface temperature more even, avoid the condensation to gather in the regional condensation of local subcooling, influence the quality of condensation evaporation glycerine and fatty acid ester, and simultaneously, the speed of condensation has also further been improved.

(2) The semi-short-stroke evaporator provided by the invention can accelerate the flow speed of free glycerin evaporated in the evaporation chamber by pushing with the blades, so that the production efficiency of the evaporator on molecular distillation glyceryl monostearate is improved, the vacuum generator on the cold trap chamber can ensure that the evaporator is always in a vacuum degree required by normal production, so that the use reliability of the evaporator is further improved, and the semi-short-stroke evaporator can reduce the original product procedures required for five-stage distillation separation to only three-stage distillation separation by arranging the cold trap chamber, so that the production process is greatly shortened.

(3) According to the semi-short-range evaporator, in the working process of the semi-short-range evaporator, the upper part is in a mode of a thin film evaporator, the lower part is in a mode of a short-range evaporator, one device plays the role of two different devices, the semi-short-range evaporator can efficiently and quickly remove free glycerin and low-carbon fatty acid ester, and has the functions of reducing equipment components for producing glyceryl monostearate, reducing control units, lowering investment cost, lowering production energy consumption and improving product quality, and meanwhile, the control difficulty is also lowered, so that the whole production process is simple and efficient, and the automation degree is high.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the structure of the stirring cage of the present invention.

FIG. 3 is a cross-sectional view of the stirring cage of the present invention.

FIG. 4 is a schematic view of the structure of the material distribution plate of the present invention.

Fig. 5 is a cross-sectional view of a deflector of the present invention.

FIG. 6 is a schematic view of the structure of the cold trap chamber according to the present invention.

Fig. 7 is a schematic structural diagram of the motor of the present invention.

FIG. 8 is a schematic view of the structure of a circulating water condenser tube according to the present invention.

Fig. 9 is a sectional view of the condensation wall of the present invention.

Fig. 10 is a bottom view of the upper cover plate of the present invention.

FIG. 11 is a top view of the collection tray of the present invention.

In the figure: 1. an evaporation chamber; 2. stirring a cage; 3. a material distribution tray; 4. a diversion scraper blade; 401. a scraper connecting strip; 5. a circulating water condenser pipe; 501. a condensation wall; 502. a launder; 503. condensing the thin tube; 504. a water feeding pipe; 505. an upper cover plate; 506. a water diversion pipe; 507. a water diversion port; 508. collecting the chassis; 509. a water collecting pipe; 510. a water collecting port; 6. a heating medium inlet; 7. a heating medium discharge port; 8. a steam inlet; 9. a steam outlet; 10. a first circulating water inlet; 11. a first circulating water discharge port; 12. a secondary glycerol outlet; 13. a glycerol-removed material outlet; 14. a second circulating water inlet; 15. a second circulating water discharge port; 16. a primary glycerol outlet; 17. an evaporation chamber; 18. locking the bolt; 19. a vacuum generator; 20. material distribution holes; 21. a material scraping plate groove; 22. evaporating the material diversion port; 23. a material guide vane; 24. a stirring shaft hole; 25. a mechanical seal cartridge; 26. a cold trap chamber; 27. a cold trap coil; 28. connecting a through pipe; 29. a motor; 30. a rotating shaft; 31. a support frame; 32. and (4) a material inlet.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-11, the half short-stroke evaporator of the present invention comprises an evaporation chamber 1, a stirring cage 2, a material distribution plate 3, a circulating water condensation pipe 5 and a cold trap plate chamber 26, wherein the evaporation chamber 1 is a sealed tank-shaped structure, the stirring cage 2 is rotationally matched in the evaporation chamber 1, the material distribution plate 3 is installed at the top of the stirring cage 2, the circulating water condensation pipe 5 is installed and fixed at a position close to the bottom end in the evaporation chamber 1, the cold trap chamber 26 is connected at a position close to the top at one side of the evaporation chamber 1, the inside of the evaporation chamber 1 is communicated with the inside of the cold trap chamber 26, during the operation of the half short-stroke evaporator, the upper part is in a thin film evaporator mode, the lower part is in a short-stroke evaporator mode, one device plays the role of two different devices, the half short-stroke evaporator can efficiently and rapidly remove free glycerin and low-carbon fatty acid, and plays a role of reducing the production of glyceryl monostearate, the control unit is reduced, the investment cost is reduced, the production energy consumption is reduced, the product quality is improved, and the control difficulty is reduced, so that the whole production process is simple and efficient, and the automation degree is high;

the top of the evaporation chamber 1 is provided with a material inlet 32, the material inlet 32 is communicated to the material distribution disc 3 through a pipeline, two outer side walls of the evaporation chamber 1 are respectively provided with a heating medium inlet 6 and a heating medium outlet 7, the heating medium inlet 6 is positioned at the lower half part of the evaporation chamber 1, the heating medium outlet 7 is positioned at the upper half part of the evaporation chamber 1, a glycerol removal material outlet 13 is arranged at a position close to the bottom of one side of the evaporation chamber 1, and a secondary glycerol outlet 12 is arranged at the bottom of the evaporation chamber 1;

the stirring cage 2 is of a cylindrical structure, a plurality of diversion scrapers 4 are arranged on the periphery of the stirring cage 2 at equal radian, and one sides of the diversion scrapers 4 far away from the stirring cage 2 are tightly attached to the inner wall of the evaporation chamber 1;

an evaporation material diversion port 22 is formed in the top of the material distribution disc 3, material diversion blades 23 are fixed in the evaporation material diversion port 22 at equal radian, a plurality of material distribution holes 20 are formed in the inner side wall of the material distribution disc 3 at equal radian, the speed of flowing of free glycerin evaporated in the evaporation chamber 1 can be increased by pushing through the blades 23, and therefore the efficiency of the evaporator for producing the molecular distillation glyceryl monostearate is improved;

the circulating water condensation pipe 5 is formed by communicating a plurality of vertically parallel water pipes, the bottom of the circulating water condensation pipe 5 is provided with a first circulating water inlet 10 and a first circulating water outlet 11, and the first circulating water inlet 10 and the first circulating water outlet 11 are both positioned outside the bottom of the evaporation chamber 1;

the cold trap chamber 26 is a hollow tank structure, one side of the cold trap chamber 26 close to the evaporation chamber 1 is provided with a connecting through pipe 28, one end of the connecting through pipe 28 far away from the cold trap chamber 26 is connected and communicated with the evaporation chamber 1, a cold trap coil pipe 27 is arranged in the cold trap chamber 26, the top of the cold trap coil pipe 27 is connected with a second circulating water inlet 14 and a second circulating water outlet 15, the second circulating water inlet 14 and the second circulating water outlet 15 are both positioned outside the top of the cold trap chamber 26, the bottom of the cold trap chamber 26 is provided with a primary glycerol outlet 16, one side of the cold trap chamber 26 is provided with a vacuum generator 19 (model: VA 3140; manufacturer: Shenzhen Yongchu technology Limited company), the vacuum generator 19 on the cold trap chamber 26 can ensure that the evaporator is always in a vacuum degree required by normal production, thereby further improving the reliability of the evaporator, by arranging the cold trap chamber 26, the semi-short-path evaporator can reduce the product procedures which originally need five-stage distillation separation to only three-stage distillation separation, thereby greatly shortening the production flow.

The top fixed mounting of evaporating chamber 1 has support frame 31, and the vertical motor 29 of installing in top of support frame 31, the bottom of motor 29 are equipped with pivot 30, and pivot 30 runs through the top of evaporating chamber 1, and the bottom and the material distribution dish 3 of pivot 30 are connected.

The speed reducer is fixed on the support frame 31 and is installed between the motor 29 and the rotating shaft 30, the rotating shaft 30 penetrates through the evaporation chamber 1 and is provided with the mechanical sealing sleeve 25, the mechanical sealing sleeve 25 is arranged, the airtightness in the evaporation chamber 1 is improved, and then a reliable production environment is provided for processing of the evaporator, so that the use reliability of the evaporator is improved.

Stirring shaft hole 24 has been seted up at the top center of material distribution dish 3, stirring shaft hole 24 is run through to the bottom of pivot 30, and the pivot 30 runs through the one end screw-thread fit in stirring shaft hole 24 has locking bolt 18, be connected material distribution dish 3 and pivot 30 through using locking bolt 18, it is more convenient simple to make to dismantle between material distribution dish 3 and the pivot 3, facilitate for subsequent maintenance and change accessory, through the convenience that improves subsequent maintenance and change accessory, thereby prolong the life of this half short form evaporimeter.

Stir radians such as the lateral wall of cage 2 and seted up a plurality of material scraper blade groove 21, the one end that is close to of a plurality of water conservancy diversion scraper blade 4 and stirs cage 2 all welded fastening has scraper blade connecting strip 401, a plurality of scraper blade connecting strip 401 sliding fit is in a plurality of material scraper blade groove 21 respectively, a plurality of water conservancy diversion scraper blade 4 is installed in stirring cage 2 outside through radians such as a plurality of scraper blade connecting strip 401, scrape the installation that the groove 21 carries out water conservancy diversion scraper blade 4 through setting up the material, make the installation of water conservancy diversion scraper blade 4 simple more convenient, thereby further prolong the life of this evaporimeter, and simultaneously, wearing and tearing appear at the use most easily in water conservancy diversion scraper blade 4, it is simple convenient through the change that makes water conservancy diversion scraper blade 4, thereby improve the convenience that this evaporimeter used, and simultaneously, also provide the assurance for evaporimeter production process.

The cross sections of the material scraper grooves 21 and the scraper connecting strips 401 are of T-shaped structures, and the scraper connecting strips 401 are respectively matched with the length of the material scraper grooves 21 in size.

The one end that a plurality of water conservancy diversion scraper blade 4 kept away from and stirs cage 2 all is the arc structure, and a plurality of water conservancy diversion scraper blade 4 keeps away from the radian that stirs cage 2 one end and is the same with 1 inner wall radian of evaporating chamber, through set up the radian in 4 one ends of water conservancy diversion scraper blade, makes water conservancy diversion scraper blade 4 laminate with 1 inner wall of evaporating chamber more, and then makes water conservancy diversion scraper blade 4 scrape the thinner of mixed material, improves the speed of evaporation to improve the production efficiency of this evaporimeter.

Evaporating chamber 1 is inside to be located material distribution dish 3 top and is equipped with evaporation chamber 17, one side that evaporating chamber 1 is close to cold trap room 26 is equipped with the connecting pipe, the connecting pipe link up with evaporation chamber 17 is inside, the one end and the connecting pipe 28 fixed connection of evaporating chamber 1 are kept away from to the connecting pipe, and the connecting pipe link up with connecting pipe 28 is inside, evaporating chamber 1 both sides are equipped with steam respectively and lead to entry 8 and steam outlet 9, steam leads to entry 8 and steam outlet 9 and all is located the lower half of evaporating chamber 1

The circulating water condensation pipe 5 comprises a condensation wall 501, an upper cover plate 505 and a collection chassis 508, the cross section of the condensation wall 501 is spirally arranged, a water supply pipe 504 is vertically arranged at the center of the condensation wall 501, the bottom end of the water supply pipe 504 is connected and communicated with the first circulating water inlet 10, a plurality of condensation tubules 503 are embedded in the condensation wall 501 from the top to the bottom at equal intervals, a plurality of flow grooves 502 are vertically arranged at the inner side and the outer side of the condensation wall 501 at equal intervals, an upper cover plate 505 is arranged at the top of the condensation wall 501, a heat insulation interlayer is arranged at the top of the upper cover plate 505, a diversion pipe 506 is spirally arranged at the bottom of the upper cover plate 505, one end of the diversion pipe 506 is in a closed state, the other end of the diversion pipe 506 is connected and communicated with the water supply pipe 504, a plurality of diversion ports 507 are arranged at equal intervals at the bottom of the diversion pipe 506, the plurality of diversion ports 507 are respectively connected and communicated with the tops of the plurality of condensation tubules 503, the collection chassis 508 is fixed at the bottom of the condensation wall 501, the collecting chassis 508 is provided with a plurality of channels to communicate the flow groove 502 with the second-stage glycerol discharge port 12, the bottom of the collecting chassis 508 is provided with a heat-insulating interlayer, the top of the collecting chassis 508 is spirally provided with a water collecting pipe 509, one end of the water collecting pipe 509 is in a closed state, the other end of the water collecting pipe 509 is communicated with the first circulating water discharge port 11, the top of the water collecting pipe 509 is provided with a plurality of water collecting ports 510 at equal intervals, the plurality of water collecting ports 510 are respectively communicated with the bottom of the condensing tubule 503, through the arrangement of the flow groove 502, condensed evaporated glycerol and fatty acid ester can be better drained, the collection efficiency of the evaporated glycerol and fatty acid ester is higher, through the spiral arrangement of the condensing wall 501, the surface area of the circulating water condensing pipe 5 can be improved, the contact surface area between the evaporated glycerol and fatty acid ester and the circulating water condensing pipe 5 is further increased, the condensing speed is further improved, and the use efficiency of the evaporator is further improved, through set up condensation tubule 503 in condensation wall 501 to set up distributive pipe 505 and header 509, make the cold water that gets into in the circulating water condenser pipe 5 can circulate from condensation wall 501 downwards in step, and then make condensation wall 501 surface temperature more even, avoid the condensation to gather in the regional condensation of local subcooling, influence the quality of condensation evaporation glycerine and fatty acid ester, simultaneously, also further improved the speed of condensation.

The using method of the semi-short-range evaporator specifically comprises the following steps:

the method comprises the following steps: the stirring cage 2 of the half short-stroke evaporator is driven by a motor 29 to rotate, materials are thrown into the evaporation chamber 1 through a material inlet 32, the mixed materials fall onto a material distribution disc 3 after entering the evaporation chamber 1, the mixed materials on the material distribution disc 3 are uniformly thrown onto the inner wall of the evaporation chamber 1 through centrifugal force through material distribution holes 20 by the aid of the rotating stirring cage 2, the rotating flow guide scraper 4 drives the material to rotate, the material is forcibly scraped into a film by the rotating flow guide scraper 4, and free glycerin and low-carbon chain fatty acid ester of the mixed materials on the inner wall of the evaporation chamber are continuously evaporated in the downward flowing process through a heating medium inlet 6 and a heating medium outlet 7 by the aid of heat energy circularly provided by the heating medium inlet 6 and the heating medium outlet 7;

step two: the free glycerin evaporated from the upper part of the evaporation chamber 1 is pushed by the evaporation material guide vane 23 at the evaporation material guide opening 22, enters the cold trap 26 through the evaporation cavity 17, provides a lower temperature for the cold trap coil 27 through the second circulating water inlet 14 and the second circulating water outlet 15, condenses the gaseous free glycerin, and enters the glycerin storage tank through the first-stage glycerin outlet 16 for recycling;

step three: the free glycerin and the low-carbon chain fatty acid ester evaporated from the lower part of the evaporation chamber 1 contact the circulating water condensation pipe 5 in the free evaporation process, the circulating water condensation pipe 5 is kept at a low temperature through the continuous cold water of the first circulating water inlet 10 and the second circulating water outlet 11, and the evaporated glycerin and the fatty acid ester are condensed and enter the glycerin storage tank from the second-level glycerin outlet 12 to be recovered.

When in use, firstly, the stirring cage 2 of the half short-stroke evaporator is driven by the motor 29 to rotate, the materials are thrown into the evaporation chamber 1 through the material inlet 32, the mixed materials fall onto the material distribution disc 3 after entering the evaporation chamber 1, the mixed materials on the material distribution disc 3 are uniformly thrown onto the inner wall of the evaporation chamber 1 through the material distribution holes 20 by centrifugal force by the rotating stirring cage 2, the rotating flow guide scraper 4 drives the flow guide scraper 4 to rotate, the materials are forcibly scraped into a layer of film by the rotating flow guide scraper 4, the heat energy is circularly provided through the heating medium inlet 6 and the heating medium outlet 7, the free glycerin and the low-carbon fatty acid ester of the mixed materials on the inner wall of the evaporation chamber are continuously evaporated in the downward flowing process, the material distribution disc 3 is connected with the rotating shaft 30 by using the locking bolt 18, so that the disassembly between the material distribution disc 3 and the rotating shaft 3 is more convenient and simpler, the utility model provides convenience for subsequent maintenance and accessory replacement, the service life of the semi-short evaporator is prolonged by improving the convenience of subsequent maintenance and accessory replacement, the installation of the diversion scraper blade 4 is simpler and more convenient by arranging the material scraper blade groove 21, the service life of the evaporator is further prolonged, meanwhile, the diversion scraper blade 4 is most easily worn in the use process, the convenience of the evaporator is improved by simply and conveniently replacing the diversion scraper blade 4, meanwhile, the production process of the evaporator is guaranteed, the airtightness in the evaporator chamber 1 is improved by arranging the mechanical sealing sleeve 25, a reliable production environment is provided for the processing of the evaporator, the reliability of the evaporator is improved, then the free glycerin evaporated on the upper part of the evaporator chamber 1 is pushed by the evaporation material diversion blade 23 at the evaporation material diversion port 22, enters the cold trap chamber 26 through the evaporation cavity 17, provides a lower temperature for the cold trap coil pipe 27 through the second circulating water inlet 14 and the second circulating water outlet 15, condenses the gaseous free glycerin, enters the glycerin storage tank for recycling through the first-stage glycerin outlet 16, promotes by using the blade 23, can accelerate the flowing speed of the evaporated free glycerin in the evaporation chamber 1, thereby improving the production efficiency of the evaporator on the molecular distillation glyceryl monostearate, can ensure that the evaporator is always in a vacuum degree required by normal production through the vacuum generator 19 on the cold trap chamber 26, thereby further improving the use reliability of the evaporator, and can reduce the product process originally requiring five-stage distillation separation to only three-stage distillation separation through the arrangement of the cold trap chamber 26, greatly shortening the production flow, and finally, the free glycerin and low-carbon chain fatty acid ester evaporated from the lower part of the evaporation chamber 1 contact with the circulating water condenser pipe 5 in the free evaporation process, the circulating water condenser pipe 5 is kept at a low temperature through continuous cold water at the first circulating water inlet 10 and the second circulating water outlet 11, the evaporated glycerin and fatty acid ester are condensed to enter the glycerin storage tank from the second-level glycerin outlet 12 for recycling, in the working process of the half-short-range evaporator, the upper part is in a mode of a film evaporator, the lower part is in a mode of a short-range evaporator, one device plays the role of two different devices, the half-short-range evaporator can efficiently and rapidly remove the free glycerin and the low-carbon chain fatty acid ester, the equipment components for producing the glyceryl monostearate are reduced, the control unit is reduced, the investment cost is reduced, the production energy consumption is reduced, the product quality is improved, and the control difficulty is also reduced, the whole production process is simple and efficient, and the automation degree is high.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.