CN111672440B

CN111672440B - Agitating unit and crystallization reaction cauldron

Info

Publication number: CN111672440B
Application number: CN202010607796.2A
Authority: CN
Inventors: 贾瑾瑜; 何明威; 谢浩
Original assignee: Hebei Nuoda Chemical Equipment Co ltd
Current assignee: Hebei Nuoda Chemical Equipment Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2022-02-22
Anticipated expiration: 2040-06-29
Also published as: CN111672440A

Abstract

The invention relates to a stirring device and a crystallization reaction kettle, and relates to the technical field of crystallization reaction kettles with crystallization generation, wherein the stirring device comprises a first stirring arm, a first connecting arm and a second connecting arm; the first stirring arms are arranged at intervals along the circumferential direction of the stirring shaft, are positioned on the inner side of the inner wall of the tank bottom and are positioned on one side of the rotary axis of the tank bottom and are arranged along a bus of the tank bottom, and the first stirring arms are matched with the curvature of the bus; one end of the first connecting arm is fixedly connected with the stirring shaft, and the other end of the first connecting arm is connected with the first stirring arm; the first connecting arm is connected with the first stirring arm through a second connecting arm; the second stirring arms are fixedly arranged above the first stirring arm, and are uniformly distributed at intervals along the circumferential direction of the stirring shaft; the crystallization reaction kettle comprises the stirring device. The invention can solve the technical problems of uneven stirring and long material reaction mixing time in the prior art, and achieves the effects of uniform material mixing and production period shortening.

Description

Agitating unit and crystallization reaction cauldron

Technical Field

The invention relates to the technical field of crystallization reaction kettles with crystallization generation, in particular to a stirring device and a crystallization reaction kettle.

Background

At present, the stirring operation mainly involving a liquid includes a case where a solid and a solid react in a solution and cause crystallization. The solid materials pass through a stirring device in the kettle and fully undergo chemical reaction in liquid so as to achieve the aim of preparing new materials; the operation is mainly characterized in that uniform suspension is prepared, the solid is promoted to rapidly react in the liquid, the heat transfer is enhanced, new crystals are generated by the reaction, and the crystals are conveyed to the next working procedure.

Solid materials are added into a reaction kettle and are mixed, dissolved and reacted with liquid materials in the kettle, and besides the medium needing a jacket helps to realize the control of proper temperature, a stirring device is also needed to promote the realization of the process; the stirring device is also called a stirrer or a blade, and is a core part of the stirring equipment, and the form of the stirring device directly determines the using effect of the stirring kettle.

In the prior art, double-layer inclined blade paddles are adopted, when the double-layer inclined blade paddles operate, the paddles press down materials at the center of equipment, and axial flow is mainly used in the equipment. The solid materials are not continuously added into the equipment in small quantity, but the materials which are completely reacted are added at one time, so that a large quantity of the solid materials are accumulated at the bottom, the flow field of the internal circulation moves to the upper part, and the lower paddle has little effect at the stage of starting stirring, thereby prolonging the material reaction time, prolonging the production period and restricting the production capacity.

In addition, the reaction generates new crystalline materials, the crystalline materials are easy to crystallize near the discharge port, the bottom discharge pipe opening is often plugged by crystallized solids, and the bottom discharge pipe opening is often dredged by steam during discharging, so that the operation is complicated, the working hours are increased, and the production cost is increased.

Disclosure of Invention

One of the objectives of the present invention is to provide a stirring apparatus, which aims to solve the technical problems of uneven stirring and long material reaction mixing time in the prior art, and achieve the effects of uniform material mixing and shortened production cycle.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a stirring device for set up in the jar internally, the tank bottoms of jar body adopts convex head, including the (mixing) shaft and with the driver of (mixing) shaft upper end connection still includes

The first stirring arms are uniformly distributed at intervals along the circumferential direction of the stirring shaft, are positioned on the inner side of the inner wall of the tank bottom and are positioned on one side of the rotation axis of the tank bottom, are arranged along a bus of the tank bottom, and are matched with the curvature of the tank bottom in the length direction;

the first connecting arms are consistent with the first stirring arms in quantity, are arranged perpendicular to the stirring shaft, and are fixedly connected with the stirring shaft at one end and connected with the first stirring arms at the other end;

the second connecting arms are consistent with the first stirring arms in quantity, are obliquely arranged with the stirring shaft, and are connected with the first connecting arms at one end and fixedly connected with the first stirring arms at the other end; and

the second stirring arms are arranged in a plurality of positions above the first stirring arms, and are fixedly arranged in the circumferential direction of the stirring shaft at intervals.

Through adopting above-mentioned technical scheme, the second rabbling arm that the form was raised to the first rabbling arm that adopts to be located the upper portion and be located the lower part, first rabbling arm and second rabbling arm cooperation are used, make the flow field change, make the flow pattern of the axial flow that rises of department formation in equipment center, make solid pile up the time and shorten, make the solid material dissolve and the time of mixing contract, the speed of reaction obviously accelerates, mixing efficiency obtains improving, and the second rabbling arm adopts the steel pipe preparation, steel pipe light in weight, rigidity is big, the running resistance is little, can not increase agitator motor's power.

The present invention in a preferred example may be further configured to: one end of the first stirring arm, which is close to the outlet at the center of the tank bottom, is provided with a first scraper blade, and the bottom of the first scraper blade is abutted against the inner wall of the tank bottom.

Through adopting above-mentioned technical scheme, the design of first scraper blade mainly is used for clearing up the crystallization of gluing on jar internal wall. The solid materials react and mix in the solution to generate new materials and generate crystals, and if small crystals generated at the beginning are not crushed, large crystals can be formed and adhere to the inner wall and the discharge port to form blockage, so that the difficulty in discharging is caused. Consequently, through the first scraper blade of end connection at first rabbling arm, can clear away the crystallization that produces in time at the in-process of stirring, avoid blockking up the discharge gate, guarantee that the ejection of compact is smooth and easy.

The present invention in a preferred example may be further configured to: the first stirring arm is provided with a plurality of second scraping plates arranged at intervals along the length direction and the inner wall of the tank bottom, one side of each second scraping plate is fixedly connected with the first stirring arm, and the other side of each second scraping plate is abutted to the inner wall of the tank bottom.

Through adopting above-mentioned technical scheme, the design of second scraper blade mainly is for clearing up crystallization on the internal wall of jar, and the second scraper blade sets up along the length direction of first rabbling arm interval, can further increase the area of crystallization in the clearance jar, can clear away the crystallization that produces in time at the in-process of stirring, avoids blockking up.

The present invention in a preferred example may be further configured to: the outside of second linking arm is equipped with the agitator sleeve, the fixed stirring rod that is equipped with a plurality of intervals equipartition in periphery of agitator sleeve.

Through adopting above-mentioned technical scheme, a plurality of stirring rods rotate through the agitator sleeve and connect on the second linking arm, have realized the stirring effect of stirring rod to the material, at the in-process of stirring, the material strikes with the stirring rod, can promote dissolving of solid material, shortens the time that the material mixes, and the speed of reaction obviously accelerates, and mixing efficiency obtains improving work efficiency.

The present invention in a preferred example may be further configured to: the stirring sleeve is rotatably connected with the second stirring arm.

Through adopting above-mentioned technical scheme, at the in-process of stirring, the material strikes with the stirring rod for the stirring cover drives the stirring rod and rotates, and the dissolution of solid material can be promoted to a plurality of stirring rods of pivoted, shortens the time that the material mixes, and the speed of reaction obviously accelerates, and mixing efficiency obtains improving, has improved work efficiency.

The present invention in a preferred example may be further configured to: the middle part of the first connecting arm is provided with a first elastic adjusting structure for adjusting the length of the first connecting arm in the horizontal direction; a second elastic adjusting structure is arranged between the first stirring arm and the first connecting arm and used for adjusting the position of the first stirring arm in the vertical direction; and a third elastic adjusting structure is arranged between the first connecting arm and the second connecting arm.

Through adopting above-mentioned technical scheme, adjust structure, second elasticity and adjust the structure through setting up first elasticity for first stirring arm, first scraper blade and second scraper blade can produce an amount of displacement along the atress direction when receiving the material striking, thereby alleviate the impact, play certain cushioning effect, stir more steadily, wholly played the guard action to agitating unit, are favorable to prolonging agitating unit's life.

The present invention in a preferred example may be further configured to: the first elastic adjusting structure comprises a first adjusting sleeve and a first spring, the first adjusting sleeve is internally provided with a cavity, the first spring is positioned in the first adjusting sleeve, the first connecting arm comprises an inner side adjusting arm and an outer side adjusting arm, the inner side adjusting arm is fixed to the stirring shaft, the outer side adjusting arm is connected with the first stirring arm, the inner side adjusting arm and the outer side adjusting arm are fixedly connected with the two ends of the first spring respectively, and the inner side adjusting arm or/and the outer side adjusting arm are/is connected with the first adjusting sleeve in a sliding mode.

Through adopting above-mentioned technical scheme, inboard regulating arm with outside regulating arm respectively with the both ends of first spring are fixed, have realized the change of first connecting arm length for the power that first rabbling arm, first scraper blade and second scraper blade horizontal direction received is favorable to improving the stationarity of stirring process, plays the effect of protection to agitating unit.

The present invention in a preferred example may be further configured to: the second elastic adjusting structure comprises a second adjusting sleeve and a second spring, wherein a cavity is formed in the second adjusting sleeve, the second spring is vertically and fixedly arranged in the second adjusting sleeve, the second adjusting sleeve is fixedly connected with the first connecting arm, and the first stirring arm is fixed to the lower portion of the second spring and is in sliding connection with the second adjusting sleeve.

Through adopting above-mentioned technical scheme, the upper portion of first rabbling arm can realize reciprocating in the second adjustment sleeve through spring coupling, can balance the power that first rabbling arm, first scraper blade and second scraper blade received in vertical direction, is favorable to improving the stationarity of stirring process, plays the effect of protection to agitating unit.

The present invention in a preferred example may be further configured to: the third elastic adjusting structure comprises a third adjusting sleeve and a third spring, wherein a cavity is formed in the third adjusting sleeve, the third spring is fixedly arranged in the third adjusting sleeve, the third adjusting sleeve is fixedly connected with the first connecting arm, and the upper portion of the second connecting arm is fixed with the lower portion of the second spring and is in sliding connection with the third adjusting sleeve.

Through adopting above-mentioned technical scheme, the upper portion of second linking arm can realize the slip in the third adjustment cover through spring coupling, can balance the power that first rabbling arm, first scraper blade and second scraper blade received in vertical direction, is favorable to improving the stationarity of stirring process, plays the effect of protection to agitating unit.

The invention also aims to provide a crystallization reaction kettle, which aims to solve the technical problems of uneven stirring and long material reaction mixing time in the prior art, and achieve the effects of uniform material mixing and production period shortening.

In order to achieve the purpose, the invention adopts the technical scheme that: the crystallization reaction kettle comprises the stirring device, a tank body and a jacket positioned outside the tank body, wherein a discharge hole is formed in the center of the bottom of the tank body.

Through adopting above-mentioned technical scheme, agitating unit is through adopting the first rabbling arm that is located the upper portion and the second rabbling arm that is located the form of raising upward of lower part, and first rabbling arm and second rabbling arm cooperation are used for the flow field changes, makes the flow pattern that forms the axial flow that raises in equipment center department, makes solid pile up the time and shortens, makes the time that solid material dissolved and mixes contract, and the speed of reaction obviously accelerates, and mixing efficiency obtains improving.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the first stirring arm and the second stirring arm are matched for use, so that a flow field is changed, a raised axial flow pattern is formed in the center of the equipment, the solid accumulation time is shortened, the time for dissolving and mixing solid materials is shortened, the reaction speed is obviously accelerated, the mixing efficiency is improved, and the second stirring arm is made of a steel pipe, so that the steel pipe is light in weight, large in rigidity, small in running resistance and free of increasing the power of a stirring motor;

2. crystals generated on the inner wall of the tank body and the discharge port can be removed in time in the stirring process, so that the discharge port is prevented from being blocked, and smooth discharge is ensured;

3. through setting up first elasticity and adjusting structure, second elasticity and adjusting structure and third elasticity and adjusting the structure for first stirring arm, first scraper blade and second scraper blade can produce an amount of displacement along the atress direction when receiving the material striking, thereby alleviate the impact, play certain cushioning effect, stir more steadily, wholly played the guard action to agitating unit, be favorable to prolonging agitating unit's life.

Drawings

FIG. 1 is a schematic structural diagram of a stirring device provided in an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a stirring device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a crystallization reactor according to an embodiment of the present invention.

In the figure: 1. the device comprises a driver, 2, a stirring shaft, 3, a second stirring arm, 4, a first connecting arm, 401, an inner side regulating arm, 402, an outer side regulating arm, 5, a second elastic regulating structure, 501, a second regulating sleeve, 502, a second spring, 6, a second scraping plate, 7, a first stirring arm, 8, a first scraping plate, 9, a bottom bearing, 10, a second connecting arm, 11, a stirring sleeve, 12, a stirring rod, 13, a first elastic regulating structure, 1301, a first regulating sleeve, 1302, a first spring, 14, a third elastic regulating structure, 1401, a third regulating sleeve, 1402, a third spring, 15, a tank body, 16, a jacket, 17, a discharge port, 18 and a bearing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2 together, the invention discloses a stirring device, which is used for being arranged in a crystallization reaction kettle provided with a tank body 15, wherein the bottom of the tank body 15 is a convex end socket, and the stirring device comprises a stirring shaft 2, a driver 1 connected with the upper end of the stirring shaft 2, a first stirring arm 7, a first connecting arm 4 and a second connecting arm 10; the first stirring arms 7 are made of steel pipes, the first stirring arms 7 are provided with a plurality of stirring arms 7 and are uniformly distributed at intervals along the circumferential direction of the stirring shaft 2, the first stirring arms 7 are positioned on the inner side of the inner wall of the tank bottom and positioned on one side of the rotary axis of the tank bottom, the first stirring arms 7 are arranged along the bus of the tank bottom, the extension line of the first stirring arms 7 along the length direction passes through the rotary axis of the tank bottom, the shape of the first stirring arms 7 along the length direction is matched with the curvature of the tank bottom, namely, the shape of the first stirring arms 7 along the length direction is consistent with the curvature of the bus of the tank bottom; the first connecting arms 4 are consistent with the first stirring arms 7 in quantity and are arranged perpendicular to the stirring shaft 2, one end of each connecting arm is fixedly connected with the stirring shaft 2, and the other end of each connecting arm is connected with the first stirring arm 7; the number of the second connecting arms 10 is the same as that of the first stirring arms 7, the second connecting arms are obliquely arranged with the stirring shaft 2, one ends of the second connecting arms are connected with the first connecting arms 4, the other ends of the second connecting arms are fixedly connected with the first stirring arms 7, specifically, the second connecting arms 10 are made of steel pipes, and the second connecting arms 10 are respectively welded and fixed with the first connecting arms 4 and the first stirring arms 7; second rabbling arm 3 is equipped with a plurality ofly, and fixed being located the top of first rabbling arm 7, a plurality of second rabbling arms 3 are along (mixing) shaft 2's circumference interval equipartition, and is concrete, and second rabbling arm 3 adopts the stirring board, and first rabbling arm 7 is the oblique paddle leaf that the slope set up, and first rabbling arm 7 is oblique paddle leaf promptly.

In the embodiment, a double-layer paddle structure with different upper and lower forms is arranged, the second stirring arm 3 positioned on the upper layer adopts a plate-shaped stirring plate, the first stirring arm 7 positioned on the lower layer adopts an upward structure, and the defect that the double-layer inclined paddle presses materials downwards at the center of the equipment when the double-layer inclined paddle operates is overcome through the matching of the upper and lower stirring arms; in the technical scheme, the second stirring arm 3 is designed into a shape consistent with a bus at the bottom of the tank, the second stirring arm 3 is close to the wall of the tank, and the first stirring arm 7 and the second stirring arm 3 are matched in the stirring process and fully play a role, so that an upward axial flow type is formed at the center of the equipment, the upward axial flow type can quickly drive the solid at the bottom to move more quickly and participate in circulation, the solid mixing reaction is accelerated, and excessive crystallization on the wall surface can be prevented.

In addition, the structural design of first linking arm 4 and second linking arm 10, on the one hand, play reinforced (rfd) effect between first stirring arm 7 and the (mixing) shaft 2, overall structure is compacter, firm and reliable, the stirring ability has been strengthened, on the other hand, first linking arm 4 and second linking arm 10 play certain stirring effect to the material between (mixing) shaft 2 and the first stirring arm 7, be favorable to the mixture of material, make the material more even, and the mixing reaction of solid has been accelerated, the reaction time is reduced powerfully, and work efficiency is improved.

The beneficial effect of this embodiment is: through the second rabbling arm 3 that adopts the form of raising upward that is located the first rabbling arm 7 on upper portion and is located the lower part, first rabbling arm 7 and the cooperation of second rabbling arm 3 are used, make the flow field change, make the flow pattern of the axial flow that rises up is located to form in equipment center department, make solid pile up the time and shorten, make the time that solid material dissolves and mixes contract, the speed of reaction obviously accelerates, mixing efficiency obtains improving, and second rabbling arm 3 adopts the steel pipe preparation, steel pipe light in weight, rigidity is big, the running resistance is little, can not increase agitator motor's power.

Referring to fig. 1-2, as an embodiment of the stirring device provided by the present invention, a first scraper 8 is disposed at one end of the first stirring arm 7 close to the central outlet of the tank bottom, the bottom of the first scraper 8 abuts against the inner wall of the tank bottom, and the bottom edge of the first scraper 8 contacting with the tank bottom is in conformity with the shape of the tank bottom.

The first scraper 8 is designed to clean the crystals adhered to the inner wall of the tank body. The solid materials react and mix in the solution to generate new materials and generate crystals, and if small crystals generated at the beginning are not crushed, large crystals can be formed and adhere to the inner wall and the discharge port to form blockage, so that the difficulty in discharging is caused. Consequently, through the end connection first scraper blade 8 at first rabbling arm 7, can clear away the crystallization that produces in time at the in-process of stirring, avoid blockking up the discharge gate, guarantee that the ejection of compact is smooth and easy.

Referring to fig. 1-2, as a specific embodiment of the stirring device provided by the present invention, a plurality of second scrapers 6 are disposed between the first stirring arm 7 and the inner wall of the tank bottom along the length direction, one side of the second scrapers 6 is fixedly connected to the first stirring arm 7, the other side of the second scrapers 6 is abutted against the inner wall of the tank bottom, and the shape of the side edge of the second scraper 6 contacting the inner wall is consistent with the shape of the inner wall at the contact position, so as to be attached to the inner wall.

Above-mentioned second scraper blade 6's design, mainly for crystal on the clearance jar internal wall, second scraper blade 6 sets up along the length direction interval of first rabbling arm 7, can further increase the area of crystal in the clearance jar, can clear away the crystal that produces in time at the in-process of stirring, avoids blockking up.

Referring to fig. 1-2, as a specific embodiment of the stirring device provided by the present invention, a stirring sleeve 11 is disposed outside the second connecting arm 10, and a plurality of stirring rods 12 are fixedly disposed around the stirring sleeve 11 and spaced apart from each other. Specifically, the stirring sleeve 11 is a circular sleeve sleeved outside the second connecting arm 10.

Among the above-mentioned structural design, a plurality of stirring rods 12 rotate through stirring cover 11 and connect on second linking arm 10, have realized stirring rod 12 to the stirring effect of material, at the in-process of stirring, the material strikes with stirring rod 12, can promote dissolving of solid material, shortens the time that the material mixes, and the speed of reaction is obviously accelerated, and mixing efficiency obtains improving work efficiency.

Referring to fig. 1 and fig. 2 together, as a specific embodiment of the stirring device provided by the present invention, a stirring sleeve 11 is rotatably connected to a second stirring arm 3, specifically, two ends of a circular sleeve are rotatably connected to a second connecting arm 10 through a bearing 18, and two ends of the circular sleeve are sealed by end caps provided with sealing gaskets; the stirring rod 12 is a cylinder.

Above-mentioned technical scheme, at the in-process of stirring, the material strikes with stirring rod 12 for 11 drive stirring rod 12 rotations of stirring cover, and the dissolution of solid material can be promoted to a plurality of stirring rods 12 of pivoted, shortens the time that the material mixes, and the speed of reaction obviously accelerates, and mixing efficiency obtains improving, has improved work efficiency.

Referring to fig. 1, as a specific embodiment of the stirring device provided by the present invention, a first elastic adjusting structure 13 is disposed in the middle of the first connecting arm 4 for adjusting the length of the first connecting arm 4 in the horizontal direction; a second elastic adjusting structure 5 is arranged between the first stirring arm 7 and the first connecting arm 4 and is used for adjusting the position of the first stirring arm 7 in the vertical direction; a third elastic adjusting structure 14 is arranged between the first connecting arm 4 and the second connecting arm 10.

Among the above-mentioned technical scheme, adjust structure 13, second elasticity is adjusted structure 5 and third elasticity and is adjusted structure 14 through setting up first elasticity for first rabble arm 7, first scraper blade 8 and second scraper blade 6 can produce a certain amount of displacement along the atress direction when receiving the material striking, thereby alleviate the impact, play certain cushioning effect, stir more steadily, wholly played the guard action to agitating unit, be favorable to prolonging agitating unit's life.

Referring to fig. 1, as a specific embodiment of the stirring apparatus provided by the present invention, the first elastic adjustment structure 13 includes a first adjustment sleeve 1301 having a cavity therein and a first spring 1302 located in the first adjustment sleeve 1301, the first connection arm 4 includes an inner adjustment arm 401 fixed to the stirring shaft 2 and an outer adjustment arm 402 connected to the first stirring arm 7, the inner adjustment arm 401 and the outer adjustment arm 402 are respectively fixedly connected to two ends of the first spring 1302, and the inner adjustment arm 401 or/and the outer adjustment arm 402 are slidably connected to the first adjustment sleeve 1301.

Among the above-mentioned technical scheme, inboard regulating arm 401 and outside regulating arm 402 are fixed with the both ends of first spring 1302 respectively, have realized the change of first connecting arm 4 length for the power that first rabbling arm 7, first scraper blade 8 and the 6 horizontal directions of second scraper blade received is favorable to improving the stationarity of stirring process, plays the effect of protection to agitating unit.

Referring to fig. 1, as a specific embodiment of the stirring apparatus provided by the present invention, the second elastic adjustment structure 5 includes a second adjustment sleeve 501 having a cavity therein and a second spring 502 vertically and fixedly disposed in the second adjustment sleeve 501, the second adjustment sleeve 501 is fixedly connected to the first connection arm, and the first stirring arm 7 is fixed to a lower portion of the second spring 502 and slidably connected to the second adjustment sleeve 501.

Among the above-mentioned structural design, the upper portion of first rabbling arm 7 can realize reciprocating in second adjusting collar 501 through spring coupling, can balance the power that first rabbling arm 7, first scraper blade 8 and second scraper blade 6 received in vertical direction, is favorable to improving the stationarity of stirring process, plays the effect of protection to agitating unit.

Referring to fig. 1, as an embodiment of the stirring apparatus provided by the present invention, the third elastic adjustment structure 14 includes a third adjustment sleeve 1401 having a cavity therein and a third spring 1402 fixedly disposed in the third adjustment sleeve 1401, the third adjustment sleeve 1401 is fixedly connected to the first connection arm, and the upper portion of the second connection arm 10 is fixedly connected to the lower portion of the second spring 502 and slidably connected to the third adjustment sleeve 1401.

Above-mentioned structural design, the upper portion of second linking arm 10 can realize the slip in third adjusting sleeve 1401 through spring coupling, can balance the power that first puddler 7, first scraper blade 8 and second scraper blade 6 received in vertical direction, is favorable to improving the stationarity of stirring process, plays the effect of protection to agitating unit.

Referring to fig. 3, another object of the present invention is to provide a crystallization reactor comprising a stirring device of any one of the above, further comprising a tank 15 and a jacket 16 located outside the tank 15, wherein a discharge port 17 is provided at the center of the bottom of the tank 15.

In this embodiment, the stirring device uses the first stirring arm 7 on the upper portion and the second stirring arm 3 in the upward-raising form on the lower portion in a matching manner, so that the flow field is changed, the upward-raising axial flow pattern is formed in the center of the device, the solid accumulation time is shortened, the time for dissolving and mixing the solid material is shortened, the reaction speed is obviously accelerated, and the mixing efficiency is improved.

The embodiment aims at solving the technical problems of uneven stirring and long material reaction mixing time in the prior art, and achieves the effects of uniform material mixing and shortening the production period.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides an agitating unit for set up in the jar internally, the tank bottoms of the jar body adopts convex head, including (mixing) shaft (2) and with driver (1) that (mixing) shaft (2) upper end is connected, its characterized in that: also comprises

The stirring device comprises a plurality of first stirring arms (7) which are uniformly distributed at intervals along the circumferential direction of a stirring shaft (2), wherein the first stirring arms (7) are positioned on the inner side of the inner wall of the tank bottom and positioned on one side of the rotary axis of the tank bottom, the first stirring arms (7) are arranged along a bus of the tank bottom, and the shape of the first stirring arms (7) along the length direction is matched with the curvature of the tank bottom;

the first connecting arms (4) are consistent with the first stirring arms (7) in quantity and are arranged perpendicular to the stirring shaft (2), one end of each connecting arm is fixedly connected with the stirring shaft (2), and the other end of each connecting arm is connected with the first stirring arm (7);

the number of the second connecting arms (10) is consistent with that of the first stirring arms (7), the second connecting arms are obliquely arranged with the stirring shaft (2), one ends of the second connecting arms are connected with the first connecting arms (4), and the other ends of the second connecting arms are fixedly connected with the first stirring arms (7); and

a plurality of second stirring arms (3) are fixedly positioned above the first stirring arm (7), and the plurality of second stirring arms (3) are uniformly distributed at intervals along the circumferential direction of the stirring shaft (2);

the stirring sleeve (11) is positioned outside the second connecting arm (10), the stirring sleeve (11) is rotatably connected with the second connecting arm (10), and a plurality of stirring rods (12) which are uniformly distributed at intervals are fixedly arranged on the periphery of the stirring sleeve (11);

the middle part of the first connecting arm (4) is provided with a first elastic adjusting structure (13) for adjusting the length of the first connecting arm (4) in the horizontal direction; a second elastic adjusting structure (5) is arranged between the first stirring arm (7) and the first connecting arm (4) and is used for adjusting the position of the first stirring arm (7) in the vertical direction; a third elastic adjusting structure (14) is arranged between the first connecting arm (4) and the second connecting arm (10);

the third elastic adjusting structure (14) comprises a third adjusting sleeve (1401) and a third spring (1402), wherein a cavity is formed in the third adjusting sleeve (1401), the third spring (1402) is fixedly arranged in the third adjusting sleeve (1401), the third adjusting sleeve (1401) is fixedly connected with the first connecting arm (4), and the upper portion of the second connecting arm (10) is fixed with the lower portion of the third spring (1402) and is in sliding connection with the third adjusting sleeve (1401).

2. A mixing apparatus according to claim 1, wherein: one end of the first stirring arm (7) close to the outlet at the center of the tank bottom is provided with a first scraper (8), and the bottom of the first scraper (8) is abutted against the inner wall of the tank bottom.

3. A mixing apparatus according to claim 2, wherein: first stirring arm (7) are equipped with second scraper blade (6) of a plurality of interval arrangements along length direction and tank bottoms inner wall between, second scraper blade (6) one side with first stirring arm (7) fixed connection, opposite side and tank bottoms inner wall butt.

4. A mixing apparatus according to claim 1, wherein: first elasticity is adjusted structure (13) and is established first adjusting collar (1301) of cavity and is located in establishing first spring (1302) in first adjusting collar (1301), first connecting arm (4) including with (mixing) shaft (2) fixed inboard regulating arm (401) and with outside regulating arm (402) that first rabbling arm (7) are connected, inboard regulating arm (401) with outside regulating arm (402) respectively with the both ends fixed connection of first spring (1302), inboard regulating arm (401) or/and outside regulating arm (402) with first adjusting collar (1301) sliding connection.

5. A mixing apparatus according to claim 4, wherein: second elasticity is adjusted structure (5) including inside second adjusting collar (501) that is equipped with the cavity with vertical fixed set up in second spring (502) in second adjusting collar (501), second adjusting collar (501) with first linking arm (4) fixed connection, first rabbling arm (7) with the lower part of second spring (502) is fixed and with second adjusting collar (501) sliding connection.

6. A crystallization reaction kettle is characterized in that: a stirring device comprising the stirring device as defined in any one of claims 1-5, further comprising a tank (15) and a jacket (16) positioned outside the tank (15), wherein the bottom center of the tank (15) is provided with a discharge hole (17).