CN112354199A

CN112354199A - Single-effect external circulation concentrator based on electric heating

Info

Publication number: CN112354199A
Application number: CN202011160440.5A
Authority: CN
Inventors: 韩洪文
Original assignee: Hunan Jingcheng Pharmaceutical Machinery Co ltd
Current assignee: Hunan Jingcheng Pharmaceutical Machinery Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-02-12

Abstract

The invention discloses a single-effect external circulation concentrator based on electric heating, and relates to the technical field of concentrators. According to the invention, the motor, the first rotating shaft, the first connecting rod, the vertical scraper, the second rotating shaft, the bearing base, the first fixing rod, the rotating fan blade, the second connecting rod and the inclined plane scraper are arranged, so that wall scraping operation can be carried out on the inner wall of the heating bin, the first rotating shaft, the first connecting rod and the vertical scraper are driven to rotate by the motor, the vertical scraper can stir raw liquid to enable the raw liquid to be heated more uniformly, meanwhile, the vertical inner part of the heating bin is subjected to wall scraping, so that the concentrated solution can be prevented from being adhered to the vertical inner wall of the heating bin, when liquid drainage operation is carried out, the flowing solution can drive the rotating fan blade, the second connecting rod and the inclined plane scraper to rotate, and the inclined plane scraper can prevent the concentrated solution from being adhered to the.

Description

Single-effect external circulation concentrator based on electric heating

Technical Field

The invention relates to the technical field of concentrators, in particular to a single-effect external circulation concentrator based on electric heating.

Background

The concentrator is mainly suitable for concentration production processes in industries such as traditional Chinese medicines, health products, natural condiments, food additives, foods, chemical engineering and the like, can provide extractum with different specific gravities for different drying production modes, has wide application range, simple and convenient operation and low maintenance rate, is applied to vacuum concentration with small batch and multiple varieties and low heat sensitivity in medicines, chemical engineering and the like, adopts a mode of combining external heating natural circulation with vacuum negative pressure evaporation, has high evaporation speed, can reach a concentration ratio of 1.3, and ensures that liquid materials are concentrated without foam in a fully sealed state.

Electric heating single-effect extrinsic cycle concentrator is provided with the heater at heating jar outer wall intermediate layer usually and heats, its stoste that is close to the heating jar is heated fastly, the stoste that is located on middle and the bottom position is heated busy, it leads to the stoste to be heated inhomogeneously, influence the concentration efficiency of stoste then, can become dense gradually along with the operation stoste concentration of concentrator in addition, the solution after becoming dense is easy to adhere on the inner wall of heating chamber, the quality that the heating that receives the heater can influence solution for a long time.

Therefore, the invention discloses an electric heating-based single-effect external circulation concentrator capable of stirring a solution.

Disclosure of Invention

The invention aims to: in order to solve the problem that the concentrated solution is adhered to the inner wall of the heating bin, the single-effect external circulation concentrator based on electric heating is provided.

In order to achieve the purpose, the invention provides the following technical scheme: based on the single-effect external circulation concentrator of electric heating, including heating tank, cooling mechanism, wall scraping mechanism and stirring mechanism, the top of the heating tank is provided with a feed inlet and a motor, the feed inlet is located at one end of the motor, the interior of the heating tank is provided with a feed inlet, the wall scraping mechanism is located inside the feed inlet, the outside of the feed inlet, which is located inside the heating tank, is provided with a heater, one side of the outer wall of the heating tank is provided with a steam pipe, one end of the steam pipe, which is away from the heating tank, is connected with an evaporation tank, the bottom of the evaporation tank is provided with a circulating pipe connected with the bottom end of the heating tank, the bottom of the outer wall of the circulating pipe is provided with a discharge port, one side of the outer wall of the discharge port is provided with a discharge valve, the bottom of separator is provided with the back flow that is connected to the evaporating pot, the one end that the connecting pipe was kept away from to the separator outer wall is provided with the connecting pipe No. two, cooling body is located the one end that the separator was kept away from to the connecting pipe No. two, rabbling mechanism is located cooling body's inside.

Preferably, cooling body includes cooling tank, cooling bin, fixed block, connecting hole and congeals the liquid storehouse, the one end that the separator was kept away from to No. two connecting pipes is connected to the top of cooling tank, cooling bin, fixed block, connecting hole, the inside that the congeals the liquid storehouse is located the cooling tank, the fixed block is located the bottom in cooling bin, the connecting hole is located the top in cooling bin and runs through to the bottom of connecting hole, the congeals the liquid storehouse and is located the bottom of connecting hole, rabbling mechanism is located inside the cooling bin, the outer wall one end of cooling tank is close to top position department and is provided with the coolant liquid and advances the pipe, the one end that the coolant liquid advances the pipe is kept away from to the cooling tank outer wall keeps away from top position department and is provided with the coolant liquid exit tube, the bottom of cooling tank is provided.

Preferably, the wall scraping mechanism comprises a first rotating shaft, a first connecting rod, a vertical scraper, a second rotating shaft, a bearing base, a first fixing rod, a rotating fan blade, a second connecting rod and an inclined plane scraper, the output end of the motor penetrates into the feed inlet and is connected with the top end of the first rotating shaft, the first connecting rod is positioned on the side surface of the outer wall of the first rotating shaft, the vertical scraper is positioned at one end of the first connecting rod, which is far away from the first rotating shaft, the second rotating shaft is positioned under the first rotating shaft, the bearing base is positioned at the bottom end of the second rotating shaft and is mutually sleeved with the outer wall of the second rotating shaft, the first fixed rod is positioned on the outer wall of the bearing base and is fixedly connected with the inner wall of the feeding hole, the rotating fan blade and the second connecting rod are located on the outer wall of the second rotating shaft, the second connecting rod is located above the rotating fan blade, and the inclined plane scraper is located at one end, away from the second rotating shaft, of the second connecting rod.

Preferably, rabbling mechanism includes swivelling joint pipe, blade, rolling bearing, connecting block, fixed flabellum and No. two dead levers, the swivelling joint pipe is located inside the cooling storehouse and cup joints each other with the top of cooling storehouse inner wall top, connecting hole, rolling bearing is located cooling storehouse, connecting hole and swivelling joint pipe contact position and cup joints each other with the outer wall of swivelling joint pipe, the blade is located the outer wall of swivelling joint pipe, connecting block, fixed flabellum, No. two dead levers are located the inside top position that is close to of swivelling joint pipe, fixed flabellum, No. two dead levers are located the connecting block outer wall, fixed flabellum is located No. two dead lever one sides, the one end of connecting block and the inner wall fixed connection of swivelling joint.

Preferably, the structure of vertical scraper is arc shape, the one end that a connecting rod was kept away from to vertical scraper is laminated with the vertical inner wall of hot-water heating storehouse each other.

Preferably, be the tilt state between inclined plane scraper and the second pivot, the one end that the second connecting rod was kept away from to the inclined plane scraper is laminated with the inclined plane inner wall of hot-water heating storehouse each other.

Preferably, the shape of blade is arc structure, there is the clearance in the outer wall of blade and the inner wall of cooling bin, the quantity of blade is provided with a plurality ofly, and a plurality ofly the blade uses the rotating tube to be evenly distributed on the outer wall of rotating tube as the center.

Preferably, the cooling liquid inlet pipe and the cooling liquid outlet pipe penetrate through the cooling tank to be connected with the inner wall of the cooling bin, and the cooling liquid inlet pipe and the cooling liquid outlet pipe are respectively located on two sides of the stirring mechanism.

Preferably, the second connecting pipe penetrates through the cooling tank to be connected with the top end of the rotating pipe, and the bottom end of the rotating pipe is connected with the top end of the connecting hole.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the motor, the first rotating shaft, the first connecting rod, the vertical scraper, the second rotating shaft, the bearing base, the first fixing rod, the rotating fan blade, the second connecting rod and the inclined plane scraper are arranged, so that wall scraping operation can be carried out on the inner wall of the heating bin;

2. the steam condensing device can effectively improve the condensing speed of steam by arranging the rotary pipe, the blades, the rotary bearing, the connecting block, the fixed fan blades and the second fixing rod, the blades can be pushed to rotate when cooling liquid passes through the blades, the blades drive the rotary pipe to rotate, the rotating blades can also stir the cooling liquid, the rotary pipe drives the fixed fan blades to rotate through the second fixing rod and the connecting block, the fixed fan blades can stir the steam in the rotary pipe, and the cooling condensing speed of the steam can be higher through the stirring of the steam and the cooling liquid.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural sectional view of a heating tank of the present invention;

FIG. 3 is an enlarged view of the invention at position A in FIG. 2;

FIG. 4 is a schematic structural view of a vertical doctor blade of the invention;

FIG. 5 is a schematic view of the construction of the bevel blade of the present invention;

FIG. 6 is a sectional view showing the internal structure of the cooling mechanism of the present invention;

FIG. 7 is an exploded view in cross-section of the cooling structure of the present invention;

FIG. 8 is a schematic structural view of a stirring mechanism of the present invention;

fig. 9 is an enlarged view of the invention at position B in fig. 8.

In the figure: 1. a heating tank; 101. a feed inlet; 102. a heating chamber; 103. a heater; 2. an evaporator tank; 3. a separator; 4. a cooling mechanism; 401. a cooling tank; 402. a cooling bin; 403. a fixed block; 404. connecting holes; 405. a condensate bin; 5. a motor; 6. a circulation pipe; 7. a discharge port; 701. a discharge valve; 8. a cooling liquid inlet pipe; 9. a coolant outlet pipe; 10. a drain pipe; 1001. a drain valve; 11. a steam pipe; 12. a first connecting pipe; 13. a return pipe; 14. a second connecting pipe; 15. a wall scraping mechanism; 1501. a first rotating shaft; 1502. a first connecting rod; 1503. a vertical scraper; 1504. a second rotating shaft; 1505. a bearing base; 1506. a first fixing rod; 1507. rotating the fan blades; 1508. a second connecting rod; 1509. a bevel scraper; 16. a stirring mechanism; 1601. rotating the tube; 1602. a blade; 1603. a rotating bearing; 1604. connecting blocks; 1605. fixing the fan blades; 1606. and a second fixing rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

The electric motor (FTY) referred to in the present invention is available in the market or in private order.

Referring to fig. 1-9, a single-effect external circulation concentrator based on electric heating comprises a heating tank 1, a cooling mechanism 4, a wall scraping mechanism 15 and a stirring mechanism 16, wherein a feed inlet 101 and a motor 5 are arranged at the top end of the heating tank 1, the feed inlet 101 is arranged at one end of the motor 5, the feed inlet 101 is arranged inside the heating tank 1, the wall scraping mechanism 15 is arranged inside the feed inlet 101, a heater 103 is arranged outside the feed inlet 101 inside the heating tank 1, a steam pipe 11 is arranged on one side of the outer wall of the heating tank 1, one end of the steam pipe 11 far away from the heating tank 1 is connected with an evaporation tank 2, a circulating pipe 6 connected with the bottom end of the heating tank 1 is arranged at the bottom end of the evaporation tank 2, a discharge outlet 7 is arranged at the bottom end of the outer wall of the discharge outlet 7, a discharge valve 701 is arranged on one side of the outer wall of the evaporation tank 2, one end, the bottom of separator 3 is provided with back flow pipe 13 that is connected to evaporating pot 2, and the one end that the outer wall of separator 3 kept away from a connecting pipe 12 is provided with No. two connecting pipes 14, and cooling body 4 is located the one end that No. two connecting pipes 14 kept away from separator 3, and rabbling mechanism 16 is located the inside of cooling body 4.

Referring to fig. 7, the cooling mechanism 4 includes a cooling tank 401, a cooling chamber 402, a fixing block 403, a connecting hole 404 and a condensate chamber 405, one end of the second connecting pipe 14 far from the separator 3 is connected to the top end of the cooling tank 401, the cooling chamber 402, the fixing block 403, the connecting hole 404 and the condensate chamber 405 are located inside the cooling tank 401, the fixing block 403 is located at the bottom end of the cooling chamber 402, the connecting hole 404 is located at the top end of the cooling chamber 402 and penetrates to the bottom end of the connecting hole 404, the condensate chamber 405 is located at the bottom end of the connecting hole 404, the stirring mechanism 16 is located inside the cooling chamber 402, a coolant inlet pipe 8 is arranged at a position close to the top end of one end of the outer wall of the cooling tank 401, a coolant outlet pipe 9 is arranged at a position far from the top end of one end of the outer wall of the cooling tank 401, a drain pipe 10 is arranged at the bottom end of the outer wall of the drain, and collected.

Please refer to fig. 2-5, the wall scraping mechanism 15 includes a first rotating shaft 1501, a first connecting rod 1502, a vertical scraper 1503, a second rotating shaft 1504, a bearing base 1505, a first fixing rod 1506, a rotating fan blade 1507, a second connecting rod 1508 and a bevel scraper 1509, the output end of the motor 5 penetrates into the feed inlet 101 and is connected with the top end of the first rotating shaft 1501, the first connecting rod 1502 is located on the side surface of the outer wall of the first rotating shaft 1501, the vertical scraper 1503 is located at one end of the first connecting rod 1502 far away from the first rotating shaft 1501, the second rotating shaft 1504 is located right below the first rotating shaft 1501, the bearing base is located at the bottom end of the second rotating shaft 1504 and is sleeved with the outer wall of the second rotating shaft 1504, the first fixing rod 1506 is located on the outer wall 1505 of the bearing base and is fixedly connected with the inner wall of the feed inlet 101, the rotating fan blade 1507 and the second connecting rod 1508 are located on the outer wall of the second rotating shaft, the bevel scraper 1509 is located at the end of the second connecting rod 1508 far away from the second rotating shaft 1504, and the wall scraping operation can be performed on the inner wall of the heating chamber 102 by the wall scraping mechanism 15, so as to prevent the solution from condensing and adhering to the inner wall of the heating chamber 102.

With reference to fig. 6-9, the stirring mechanism 16 includes a rotary tube 1601, a blade 1602, a rotary bearing 1603, a connecting block 1604, a fixed vane 1605 and a second fixing rod 1606, the rotary tube 1601 is located inside the cooling chamber 402 and is sleeved with the top end of the inner wall of the cooling chamber 402 and the top end of the connecting hole 404, the rotary bearing 1603 is located at the contact position of the cooling chamber 402 and the connecting hole 404 with the rotary tube 1601 and is sleeved with the outer wall of the rotary tube 1601, the blade 1602 is located on the outer wall of the rotary tube 1601, the connecting block 1604, the fixed vane 1605 and the second fixing rod 1606 are located inside the rotary tube 1601 and are close to the top end, the fixed vane 1605 and the second fixing rod 1606 are located on the outer wall of the connecting block 1604, the fixed vane 1605 is located on the side of the second fixing rod 1606, one end of the second fixing rod 1606 far from the connecting block 1604 is fixedly connected with the, 1605 through fixed flabellum rotates and to stir the inside steam of rotation pipe 1601, can effectively improve the efficiency of steam condensate.

Referring to fig. 2-3, the vertical scraper 1503 is arc-shaped, and the end of the vertical scraper 1503 away from the first connecting rod 1502 fits to the vertical inner wall of the heating chamber 102, and the vertical scraper 1503 can scrape the vertical inner wall at the top end of the heating chamber 102.

Please refer to fig. again, the inclined scraper 1509 is inclined with the second rotating shaft 1504, one end of the inclined scraper 1509 away from the second connecting rod 1508 fits with the inclined inner wall of the heating chamber 102, and the inclined scraper 1509 can scrape the inclined inner wall of the bottom end of the heating chamber 102.

Please refer to fig. 4 and fig. 2, the vane 1602 is an arc-shaped structure, there is a gap between the outer wall of the vane 1602 and the inner wall of the cooling chamber 402, the number of the vanes 1602 is plural, the plural vanes 1602 are uniformly distributed on the outer wall of the rotary pipe 1601 by taking the rotary pipe 1601 as the center, the cooling liquid can flow in the gap between the vane 1602 and the cooling chamber 402, and the vane 1602 is driven to rotate by the driving force during the flowing process of the cooling liquid.

Referring to fig. 6-7, the cooling liquid inlet pipe 8 and the cooling liquid outlet pipe 9 penetrate through the cooling tank 401 to the inside and are connected to the inner wall of the cooling chamber 402, and the cooling liquid inlet pipe 8 and the cooling liquid outlet pipe 9 are respectively located at two sides of the stirring mechanism 16, so that the cooling liquid can circularly flow in the cooling chamber 402, and the stirring mechanism 16 can be driven to rotate by the flow of the cooling liquid.

Please refer to fig. 6, the second connecting pipe 14 penetrates the inside of the cooling tank 401 and is connected to the top end of the rotary pipe 1601, the bottom end of the cooling tank 401 is connected to the top end of the connecting hole 404, the structure enables the steam to enter the rotary pipe 1601 through the second connecting pipe 14 for condensation, and the generated condensation enters the condensation chamber 405 through the connecting hole 404 for collection.

The working principle is as follows: when the single-effect external circulation concentrator based on electric heating is used, the heater 103 is started to preheat the interior of the heating bin 102, then stock solution to be concentrated is filled into the interior of the heating bin 102 through the feed inlet 101, the motor 5 is started to operate, the motor 5 can drive the first rotating shaft 1501, the first connecting rod 1502 and the vertical scraper 1503 to rotate, the vertical scraper 1503 can stir the stock solution in the interior of the heating bin 102 and scrape the wall of the vertical inner wall of the heating bin 102, the stirred stock solution can be heated more uniformly and rapidly, the stock solution can be vaporized by heating in the interior of the heating bin 102 to generate steam, the steam enters the interior of the evaporation tank 2 through the steam pipe 11, unvaporized solution in the steam can flow back to the heating bin through the circulating pipe 6 to perform secondary heating circulation, and the steam after primary steam-liquid separation can enter the interior of the separator 3 through the first connecting pipe 12 to perform secondary steam-liquid separation, wherein liquid solution flows into the bottom end inside the evaporation tank 2 through the return pipe 13 and enters the circulating pipe 6 to be reheated, steam which is subjected to secondary steam-liquid separation inside the separator 3 enters the cooling tank 401 through the second connecting pipe 14 to be condensed into liquid, the steam enters the inside of the cooling tank 401 to be cooled and condensed into condensed liquid in the rotary pipe 1601 first, the condensed liquid enters the condensed liquid bin 405 through the connecting hole 404 to be collected, the cooling liquid enters the inside of the cooling bin 402 through the cooling liquid inlet pipe 8 in the process, the cooling liquid contacts with the outer wall of the rotary pipe 1601 and cools the steam in the rotary pipe 1601 to be condensed into the condensed liquid, then the cooling liquid flows out through the cooling liquid outlet pipe 9 to form cooling liquid circulating flow, the blades 1602 and the rotary pipe 1601 are driven to rotate by taking the rotary bearing 1603 as a base in the flowing process of the cooling liquid, and the rotating blades 1602 can stir the cooling liquid, rotatory pipe 1601 is through No. two dead lever 1606, connecting block 1604 can drive fixed flabellum 1605 and rotate, fixed flabellum 1605 can stir the inside steam of rotatory pipe 1601, the cooling that can effectively accelerate steam through above operation condenses, collect and open drain pipe 10 at the inside lime pit 1001 of the inside lime pit accessible drain valve 1001 of congealing and concentrate the discharge to it, along with the continuous work of heater 103 its stock solution that heats storehouse 102 inside can concentrate, accessible bleeder valve 701 opens discharge gate 7 and discharges it when the stock solution is concentrated to qualified concentration, the stock solution that flows at this in-process can drive and rotate flabellum 1507, No. two pivot 1504, No. two connecting rods 1508, inclined plane scraper 1509 rotates, inclined plane scraper 1509 can scrape the wall to the inclined plane inner wall that heats storehouse 102, can avoid the solution adhesion after the concentration can's unable discharge on the inner wall that heats storehouse 102.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Based on single-effect extrinsic cycle concentrator of electrical heating, including heating jar (1), cooling body (4), scrape wall mechanism (15) and rabbling mechanism (16), its characterized in that: the heating tank is characterized in that a feeding hole (101) and a motor (5) are arranged at the top end of the heating tank (1), the feeding hole (101) is located at one end of the motor (5), the feeding hole (101) is formed in the heating tank (1), the wall scraping mechanism (15) is located inside the feeding hole (101), a heater (103) is arranged on the outer side, located inside the feeding hole (101), of the heating tank (1), a steam pipe (11) is arranged on one side of the outer wall of the heating tank (1), one end, far away from the heating tank (1), of the steam pipe (11) is connected with an evaporating tank (2), a circulating pipe (6) connected with the bottom end of the heating tank (1) is arranged at the bottom end of the evaporating tank (2), a discharging hole (7) is formed in the bottom end of the outer wall of the circulating pipe (6), a discharging valve (701) is arranged on one side of the outer wall of the discharging, one end that evaporating pot (2) was kept away from in a connecting pipe (12) is connected with separator (3), the bottom of separator (3) is provided with back flow (13) that are connected to evaporating pot (2), the one end that a connecting pipe (12) was kept away from to separator (3) outer wall is provided with No. two connecting pipes (14), cooling body (4) are located the one end that separator (3) were kept away from in No. two connecting pipes (14), rabbling mechanism (16) are located the inside of cooling body (4).

2. The electrical heating-based single-effect external circulation concentrator of claim 1, wherein: the cooling mechanism (4) comprises a cooling tank (401), a cooling bin (402), a fixing block (403), a connecting hole (404) and a condensate bin (405), one end, far away from the separator (3), of the second connecting pipe (14) is connected to the top end of the cooling tank (401), the cooling bin (402), the fixing block (403), the connecting hole (404) and the condensate bin (405) are located inside the cooling tank (401), the fixing block (403) is located at the bottom end of the cooling bin (402), the connecting hole (404) is located at the top end of the cooling bin (402) and penetrates to the bottom end of the connecting hole (404), the condensate bin (405) is located at the bottom end of the connecting hole (404), the stirring mechanism (16) is located inside the cooling bin (402), a cooling liquid inlet pipe (8) is arranged at the position, one end, near the top end, far away from the cooling liquid inlet pipe (8), of the outer wall of the cooling tank (401) is provided with a cooling liquid outlet pipe (9), the bottom of cooling tank (401) is provided with drain pipe (10), the outer wall one end of drain pipe (10) is provided with drain valve (1001).

3. The electrical heating-based single-effect external circulation concentrator of claim 1, wherein: the wall scraping mechanism (15) comprises a first rotating shaft (1501), a first connecting rod (1502), a vertical scraper (1503), a second rotating shaft (1504), a bearing base (1505), a first fixing rod (1506), rotating fan blades (1507), a second connecting rod (1508) and an inclined plane scraper (1509), the output end of the motor (5) penetrates through the interior of the feed port (101) and is connected with the top end of the first rotating shaft (1501), the first connecting rod (1502) is located on the side surface of the outer wall of the first rotating shaft (1501), the vertical scraper (1503) is located at one end, away from the first rotating shaft (1501), of the first connecting rod (1502), the second rotating shaft (1504) is located under the first rotating shaft (1501), the bearing base (1505) is located at the bottom end of the second rotating shaft (1504) and is mutually sleeved with the outer wall of the second rotating shaft (1504), the first fixing rod (1506) is located on the outer wall of the bearing base (1505) and is fixedly connected with the inner wall of the feed port (101), rotating flabellum (1507), No. two connecting rods (1508) are located the outer wall of No. two pivot (1504), No. two connecting rods (1508) are located the top of rotating flabellum (1507), inclined plane scraper (1509) are located No. two connecting rods (1508) and keep away from the one end of No. two pivot (1504).

4. The electrical heating-based single-effect external circulation concentrator of claim 1, wherein: the stirring mechanism (16) comprises a rotary pipe (1601), blades (1602), a rotary bearing (1603), a connecting block (1604), fixed blades (1605) and a second fixed rod (1606), wherein the rotary pipe (1601) is positioned inside a cooling bin (402) and is mutually sleeved with the top end of the inner wall of the cooling bin (402) and the top end of a connecting hole (404), the rotary bearing (1603) is positioned at the contact position of the cooling bin (402), the connecting hole (404) and the rotary pipe (1601) and is mutually sleeved with the outer wall of the rotary pipe (1601), the blades (1602) are positioned on the outer wall of the rotary pipe (1601), the connecting block (1604), the fixed blades (1605) and the second fixed rod (1606) are positioned inside the rotary pipe (1601) and are close to the top end positions, the fixed blades (1605) and the second fixed rod (1606) are positioned on the outer wall of the connecting block (1604), and the fixed blades (1605) are positioned on one side of the second, one end, far away from the connecting block (1604), of the second fixing rod (1606) is fixedly connected with the inner wall of the rotating pipe (1601).

5. The electrical heating-based single-effect external circulation concentrator of claim 3, wherein: the structure of the vertical scraper (1503) is arc-shaped, and one end, away from the first connecting rod (1502), of the vertical scraper (1503) is attached to the vertical inner wall of the heating bin (102) mutually.

6. The electrical heating-based single-effect external circulation concentrator of claim 3, wherein: be the tilt state between inclined plane scraper (1509) and No. two pivot (1504), the inclined plane scraper (1509) keep away from the one end of No. two connecting rod (1508) and the laminating each other of inclined plane inner wall of hot-water heating storehouse (102).

7. The electrical heating-based single-effect external circulation concentrator of claim 4, wherein: the shape of blade (1602) is the arc structure, there is the clearance between the outer wall of blade (1602) and the inner wall of cooling bin (402), the quantity of blade (1602) is provided with a plurality ofly, a plurality ofly blade (1602) use revolving tube (1601) as the even distribution of center on the outer wall of revolving tube (1601).

8. The electrical heating-based single-effect external circulation concentrator of claim 2, wherein: the cooling liquid inlet pipe (8) and the cooling liquid outlet pipe (9) penetrate through the cooling tank (401) to be connected with the inner wall of the cooling bin (402), and the cooling liquid inlet pipe (8) and the cooling liquid outlet pipe (9) are located on two sides of the stirring mechanism (16) respectively.

9. The electrical heating-based single-effect external circulation concentrator of claim 4, wherein: the second connecting pipe (14) penetrates through the interior of the cooling tank (401) and is connected with the top end of the rotary pipe (1601), and the bottom end of the rotary pipe (1601) is connected with the top end of the connecting hole (404).