CN210314309U

CN210314309U - Stirring crystallizer

Info

Publication number: CN210314309U
Application number: CN201921141245.0U
Authority: CN
Inventors: 周大钊
Original assignee: Anhui Hongchang Sugar Industry Technology Co ltd
Current assignee: Anhui Hongchang Sugar Industry Technology Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-04-14
Anticipated expiration: 2029-07-19

Abstract

The utility model provides a stirring crystallizer, relate to crystallizer technical field, including the crystallizer body, the crystallizer body is the cylinder form structure, the top of crystallizer body is provided with the motor, the bottom of crystallizer body is provided with the discharge gate, one side of motor is provided with the pan feeding mouth, this internal agitating unit that is provided with of crystallizer, agitating unit includes the main shaft, fixed connection between the output shaft of main shaft one end and motor, the outside of main shaft one end is still overlapped and is equipped with the horizontal pole seat, the lateral wall of horizontal pole seat is improved level and is provided with the horizontal pole, and the fixed setting on the horizontal pole seat of one end of horizontal pole, the other end of horizontal pole is provided with the direction central siphon, horizontal pole and direction central siphon coaxial line, and the fixed setting on the other end of horizontal pole of direction central siphon, wall scraping device and agitator device have set gradually on the other end of. The utility model has the advantages of can prevent that the material adhesion from improving stirring efficiency on the crystallizer inner wall, and can reduce the stirring dead angle.

Description

Stirring crystallizer

Technical Field

The utility model relates to a crystallizer technical field, concretely relates to stirring crystallizer.

Background

The high fructose syrup is also high fructose syrup or isomeric syrup, which is obtained by isomerizing saccharified liquid obtained by saccharifying starch by an enzyme method by glucose isomerase to isomerize a part of glucose into fructose. The high fructose corn syrup is mainly derived from fructose in the composition of the components, and is more obvious along with the increase of the content of the fructose. After the fructose is taken, the fructose is slowly absorbed in the small intestine of a human body, is quickly metabolized in the liver, and is slightly dependent on insulin in the metabolism, so that the fructose can not cause the rise of blood sugar, and can be taken by a diabetic patient.

In the crystallization process, mass transfer, heat transfer, secondary nucleation and the like involved in the crystallization process are closely related to stirring. During crystallization, the density of the crystal slurry is high, and the requirements on mass transfer and heat transfer can be met while the suspension crystal can be ensured by fully stirring; therefore, the quality of the crystal product is closely related to the quality of the stirring blade.

At present, most of crystallization tanks have the problems of low stirring efficiency, small stirring intensity, easy generation of stirring dead angles and the like, so that the generation and distribution of crystallization with supersaturation are limited, the solution is not uniformly mixed, and particles are easy to deposit or coalesce into large crystal clusters. In the crystallization process, the conventional flat blade stirring blade easily causes poor stirring effect and insufficient crystallization, and a lot of materials are attached to the wall of a tank to cause low crystallization efficiency.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a have and prevent that the material adhesion from on the crystallizer inner wall, improve stirring efficiency, and can reduce the stirring crystallizer at dead angle.

In order to solve the technical problem, the utility model provides a stirring crystallizer, which comprises a crystallizer body, the crystallizer body is of a cylindrical structure, a motor is arranged at the top of the crystallizer body, a discharge port is arranged at the bottom of the crystallizer body, a feed inlet is arranged at one side of the motor, a stirring device is arranged in the crystallizer body, the stirring device comprises a main shaft, one end of the main shaft is fixedly connected with an output shaft of the motor, a cross rod seat is further sleeved outside one end of the main shaft, a cross rod is horizontally arranged on the outer side wall of the cross rod seat, one end of the cross rod is fixedly arranged on the cross rod seat, the other end of the cross rod is provided with a guide shaft tube, the cross rod and the guide shaft tube are coaxial, one end of the guide shaft tube is fixedly arranged at the other end of the cross rod, a wall scraping device and a stirring tube device are sequentially arranged at the other end of, the scraper blade seat is parallel to the main shaft, and the scraper blade seat is fixed to be set up on the other end of direction central siphon, scraper blade top-down sets gradually on the scraper blade seat, the churn device includes slider and round platform barrel, the slider slip cap is established in the direction central siphon between scraper blade seat and the horizontal pole outside, the bottom of horizontal pole is provided with the spout, be provided with the connecting rod between spout and the slider, and the one end of connecting rod slides and sets up in the spout, fixed connection between the other end of connecting rod and the slider, the activity of round platform barrel sets up on the bottom surface of slider, the main shaft other end still is provided with a plurality of tank.

Preferably, still be provided with a plurality of screw holes on the outer wall of main shaft one end, the screw hole distributes along the length direction equidistance of main shaft, is provided with horizontal pole seat fixing bolt on the outer wall of horizontal pole seat, and horizontal pole seat fixing bolt passes the outer wall and the screw hole threaded connection of horizontal pole seat, can pass the screw hole threaded connection of different positions on the outer wall of horizontal pole seat and the main shaft outer wall as required in proper order with horizontal pole seat fixing bolt to reach and adjust the position about in the crystallizer body of scraping wall device and churn device, so that reach different stirring effect to this internal material of crystallizer.

Preferably, the scraper blade includes arc scraper blade body, the arc of the arc convex surface of arc scraper blade body cooperatees with the arc of crystallizer body inner wall, and the arc convex surface of arc scraper blade body contacts with crystallizer body inner wall, the arc concave surface internal fixation of arc scraper blade body is provided with the fixed plate, be provided with a plurality of first bolt holes on the fixed plate, be provided with a plurality of second bolt holes on the scraper blade seat, the position of second bolt hole is corresponding with the position of first bolt hole, still be provided with a plurality of fixing bolt in the second bolt hole, and fixing bolt passes second bolt hole and first bolt hole threaded connection, it has a plurality of brushes still to have the interval on the arc convex surface of arc scraper blade body, the motor passes through the main shaft and drives the wall scraping device and rotates, thereby adnexed material on the arc convex surface of accessible arc scraper blade body strikes off crystallizer body's both ends, the material that strikes off can directly fall to this internally or fall to crystallizer through In vivo.

Preferably, this internal arc wall that is provided with of arc scraper blade, the shape of arc wall is the same with the shape of arc scraper blade body, and the arc both ends of arc scraper blade body still all are provided with the open slot, and the open slot is linked together with the arc wall, and the inner wall that is close to the open slot of the arc convex surface end of arc scraper blade body is circular-arc transition for both ends through the arc convex surface of arc scraper blade body strike off adnexed material on with crystallizer body inner wall, and the material of striking off is difficult to the adhesion at the arc both ends of arc scraper blade body.

Preferably, an outer screw rod is further arranged on the bottom surface of the sliding block, the outer screw rod is parallel to the main shaft, one end of the outer screw rod is fixedly arranged on the bottom surface of the sliding block, the circular truncated cone cylinder is of a hollow structure, the bottom surface of the circular truncated cone cylinder is open, the other end of the outer screw rod movably penetrates through the top surface of the circular truncated cone cylinder, a plurality of locking nuts are further arranged on the outer screw rod, the locking nuts are respectively located at the upper end and the lower end of the circular truncated cone cylinder, guide grooves are further formed in the opposite inner walls of the guide grooves, the length direction of each guide groove is the same as that of each guide groove, springs are further arranged in the guide grooves, one ends of the springs are fixedly arranged on the inner walls of the guide grooves close to the ends of the cross rod seats, one ends of the connecting rods are connected with the other ends of the springs, guide sliding, under the action of centrifugal force, the sliding block slides on the guide shaft tube along the length direction of the guide shaft tube, one end of the connecting rod slides in the guide groove, and when the rotating speed of the motor is low, the mixing drum device is close to the main shaft; when the rotating speed of the motor is higher, the mixing drum device is far away from the main shaft; the upper position and the lower position of the circular truncated cone cylinder can be adjusted on the outer screw rod, and then the position of the circular truncated cone cylinder is fixed by screwing the locking nut, so that the circular truncated cone cylinder can be stirred at different positions in the vertical direction and the horizontal direction in the crystallizing tank body.

Preferably, the tank bottom stirring device comprises a circular base, a cylindrical rod is fixedly arranged at the other end of the main shaft, the cylindrical rod and the main shaft are on the same axis, the outer diameter of the cylindrical rod is smaller than that of the main shaft, one end of the cylindrical rod is fixedly arranged at the other end of the main shaft, the circular base is sleeved outside the cylindrical rod, a plurality of positioning pin shafts are arranged on the top surface of the circular base, a plurality of pin shaft holes are respectively arranged at the other end of the main shaft and the bottom surface of the circular base, the positions of the positioning pin shafts correspond to the positions of the pin shaft holes, the shapes and the sizes of the positioning pin shafts are matched with the shapes and the sizes of the pin shaft holes, the positioning pin shafts are respectively positioned in the pin shaft holes at corresponding positions, a plurality of arc-shaped stirring rods are uniformly distributed on the outer wall of the circular base along the circumferential direction, the cylindrical rod, the motor can drive the arc-shaped stirring rod to rotate through the main shaft, so that the materials at the bottom in the crystallizing tank body can be stirred, and the materials are prevented from being deposited; still can insert the round pin axle on the ring shape base in the round pin axle hole of different positions on the ring shape base adjacent with it, the rethread fixation nut fastens to can realize that arc puddler is not on same perpendicular on two adjacent ring shape bases from top to bottom, can play different stirring effect to the material of bottom in the crystallizer body.

Preferably, the locating pin axle is along the top surface circumference equipartition of ring shape base, the circumference of respectively following the main shaft other end and the bottom surface circumference equipartition of ring shape base are equallyd divide in the round pin shaft hole, and the quantity of locating pin axle is the same with the quantity in round pin shaft hole, the quantity in round pin shaft hole is three at least, can insert the round pin axle on the ring shape base with in the round pin shaft hole of different positions on the ring shape base adjacent with it, rethread fixation nut fastens, thereby can realize that the arc puddler is not on same perpendicular on two adjacent ring shape bases from top to bottom, can play different stirring effect to the material of bottom in the crystallizer body.

The utility model has the advantages that:

(1) due to the arrangement of the scraping plates, materials attached to the inner wall of the crystallizing tank body can be scraped through two ends of the arc convex surface of the arc scraping plate body, so that the materials are prevented from being adhered;

(2) the motor drives the wall scraping device to rotate through the spindle, so that the stirring cylinder device slides along the length direction of the guide shaft tube under the action of centrifugal force, and the upper position and the lower position of the circular truncated cone cylinder body are adjusted on the outer screw rod, so that stirring can be performed at different positions in the vertical direction and the horizontal direction in the crystallizing tank body, and the stirring effect is improved;

(3) through being in different positions with the arc puddler on two tank bottoms agitating unit of upper and lower adjacent, can play different stirring effect to the material of bottom in the crystallizer body, reduce the stirring dead angle.

Drawings

The accompanying drawings are included to provide a preferred understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic diagram showing the positions of a wall scraping device and a stirring cylinder device of a stirred tank crystallizer according to the present invention;

FIG. 3 is a schematic view of a scraper structure of a stirred tank crystallizer according to the present invention;

FIG. 4 is a schematic diagram of the positions of the chute and the guide slot of an agitator crystallization tank according to the present invention;

FIG. 5 is a schematic view of a tank bottom stirring device of the stirring crystallization tank of the present invention;

FIG. 6 is a schematic diagram of a second bolt hole position of a stirred tank crystallizer according to the present invention;

the reference signs are: 1. a crystallizer body; 11. a discharge port; 12. a feeding port; 2. a motor; 3. a stirring device; 31. a main shaft; 311. a threaded hole; 32. a cross bar seat; 321. a cross bar base fixing bolt; 33. a cross bar; 34. a guide shaft tube; 35. a chute; 351. a guide groove; 352. a spring; 353. a guide slider; 36. a connecting rod; 4. a wall scraping device; 41. a squeegee base; 42. a squeegee; 421. an arc-shaped scraper body; 422. a fixing plate; 423. a first bolt hole; 424. a second bolt hole; 425. fixing the bolt; 426. a brush; 427. an arc-shaped slot; 428. an open slot; 5. a mixing drum device; 51. a slider; 52. a circular truncated cone cylinder; 53. an outer screw rod; 54. locking the nut; 6. a tank bottom stirring device; 61. a circular base; 611. a cylindrical rod; 62. positioning a pin shaft; 63. a pin shaft hole; 64. an arc-shaped stirring rod; 65. and (5) fixing the nut.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-6, a stirring crystallizer of this embodiment includes a crystallizer body 1, the crystallizer body 1 is a cylindrical structure, a motor 2 is disposed on the top of the crystallizer body 1, a discharge port 11 is disposed on the bottom of the crystallizer body 1, a feed port 12 is disposed on one side of the motor 2, a stirring device 3 is disposed in the crystallizer body 1, the stirring device 3 includes a main shaft 31, one end of the main shaft 31 is fixedly connected to an output shaft of the motor 2, a cross rod seat 32 is further sleeved outside one end of the main shaft 31, a cross rod 33 is horizontally disposed on an outer side wall of the cross rod seat 32, one end of the cross rod 33 is fixedly disposed on the cross rod seat 32, a guide shaft tube 34 is disposed at the other end of the cross rod 33, the cross rod 33 and the guide shaft tube 34 are coaxial, one end of the guide shaft tube 34 is fixedly disposed at the other end of the cross rod 33, a wall scraping device 4 and a stirring drum device 5, the wall scraping device 4 comprises a scraper seat 41 and a plurality of scrapers 42, the scraper seat 41 is parallel to the main shaft 31, the scraper seat 41 is fixedly arranged at the other end of the guide shaft tube 34, the scrapers 42 are sequentially arranged on the scraper seat 41 from top to bottom, the mixing drum device 5 comprises a slider 51 and a circular truncated cone cylinder 52, the slider 51 is slidably sleeved outside the guide shaft tube 34 between the scraper seat 41 and the cross rod 33, the bottom of the cross rod 33 is provided with a chute 35, a connecting rod 36 is arranged between the chute 35 and the slider 51, one end of the connecting rod 36 is slidably arranged in the chute 35, the other end of the connecting rod 36 is fixedly connected with the slider 51, the circular truncated cone cylinder 52 is movably arranged on the bottom surface of the slider 51, and the other end of the main shaft 31 is further provided with.

The outer wall of one end of the main shaft 31 is also provided with a plurality of threaded holes 311, the threaded holes 311 are equidistantly distributed along the length direction of the main shaft 31, the outer wall of the cross rod seat 32 is provided with cross rod seat fixing bolts 321, the cross rod seat fixing bolts 321 penetrate through the outer wall of the cross rod seat 32 to be in threaded connection with the threaded holes 311 at different positions on the outer wall of the main shaft 31, the cross rod seat fixing bolts 321 can sequentially penetrate through the outer wall of the cross rod seat 32 to be in threaded connection with the threaded holes 311 at different positions on the outer wall of the main shaft 31 according to requirements so as to adjust the up and down positions of the wall scraping device 4 and the stirring cylinder device 5 in the crystallization tank body 1 so as to achieve different stirring effects on materials in the crystallization tank body 1, the scraper 42 comprises an arc-shaped scraper body 421, the arc shape of the arc-shaped convex surface of the arc-shaped scraper body 421, a fixing plate 422 is fixedly arranged in an arc-shaped concave surface of the arc-shaped scraper body 421, a plurality of first bolt holes 423 are arranged on the fixing plate 422, a plurality of second bolt holes 424 are arranged on the scraper seat 41, the positions of the second bolt holes 424 correspond to the positions of the first bolt holes 423, a plurality of fixing bolts 425 are also arranged in the second bolt holes 424, the fixing bolts 425 penetrate through the second bolt holes 424 to be in threaded connection with the first bolt holes 423, a plurality of brushes 426 are also arranged on an arc-shaped convex surface of the arc-shaped scraper body 421 at intervals, the motor 2 drives the wall scraping device 4 to rotate through the main shaft 31, so that materials attached to the inner wall of the crystallization tank body 1 can be scraped through two ends of the arc-shaped convex surface of the arc-shaped scraper body 421, the scraped materials can directly fall into the crystallization tank body 1 or fall into the crystallization tank body 1 through the opening grooves 428 and 427 in, the shape of the arc-shaped groove 427 is the same as the shape of the arc-shaped scraper body 421, the arc-shaped two ends of the arc-shaped scraper body 421 are both provided with an open groove 428, the open groove 428 is communicated with the arc-shaped groove 427, and the inner wall of the open groove 428 close to the arc-shaped convex surface end of the arc-shaped scraper body 421 is in arc-shaped transition, so that materials attached to the inner wall of the crystallization tank body 1 are scraped through the two ends of the arc-shaped convex surface of the arc-shaped scraper body 421, the scraped materials are not easy to adhere to the two arc-shaped ends of the arc-shaped scraper body 421, the bottom surface of the sliding block 51 is also provided with an outer screw 53, the outer screw 53 is parallel to the main shaft 31, one end of the outer screw 53 is fixedly arranged on the bottom surface of the sliding block 51, the circular truncated cone 52 is in a hollow structure, the bottom surface of, the locking nuts 54 are respectively located at the upper end and the lower end of the circular truncated cone cylinder 52, the opposite inner wall of the sliding chute 35 is further provided with a guide groove 351, the length direction of the guide groove 351 is the same as the length direction of the sliding chute 35, a spring 352 is further arranged in the sliding chute 35, one end of the spring 352 is fixedly arranged on the inner wall of the sliding chute 35 close to the end of the cross rod seat 32, one end of the connecting rod 36 is connected with the other end of the spring 352, two side walls of one end of the connecting rod 36 are also provided with guide sliders 353, the guide sliders 353 are slidably arranged in the guide groove 351, when the motor 2 drives the wall scraping device 4 to rotate through the spindle 31, the sliders 51 slide on the guide spindle tube 34 along the length direction of the guide spindle tube 34 under the action of centrifugal force, one end of the connecting rod 36 slides in the guide groove 351, and when the rotating speed; when the rotating speed of the motor 2 is higher, the mixing drum device 5 is far away from the main shaft 31; the position of the circular truncated cone cylinder 52 can be fixed by screwing the locking nut 54 after the upper and lower positions of the circular truncated cone cylinder 52 are adjusted on the external screw 53, so that the circular truncated cone cylinder 52 can be stirred at different positions in the vertical and horizontal directions in the crystallizer body 1, the tank bottom stirring device 6 comprises a circular base 61, a cylinder rod 611 is fixedly arranged at the other end of the main shaft 31, the cylinder rod 611 and the main shaft 31 are on the same axis, the outer diameter of the cylinder rod 611 is smaller than that of the main shaft 31, one end of the cylinder rod 611 is fixedly arranged at the other end of the main shaft 31, the circular base 61 is sleeved outside the cylinder rod 611, a plurality of positioning pin shafts 62 are arranged on the top surface of the circular base 61, a plurality of pin shaft holes 63 are respectively arranged at the other end of the main shaft 31 and the bottom surface of the circular base 61, and the positions of the positioning pin shafts 62, the shape and size of the positioning pin shaft 62 are matched with those of the pin shaft hole 63, the positioning pin shafts 62 are respectively positioned in the pin shaft holes 63 at corresponding positions, a plurality of arc-shaped stirring rods 64 are uniformly distributed on the outer wall of the annular base 61 along the circumferential direction, the cylindrical rod 611 is of an external thread rod structure, a fixing nut 65 is further arranged at the other end of the cylindrical rod 611, and the motor 2 can drive the arc-shaped stirring rods 64 to rotate through the main shaft 31, so that the materials at the bottom in the crystallizing tank body 1 can be stirred, and the materials are prevented from being deposited; the positioning pin shafts 62 on the circular ring bases 61 can be inserted into pin shaft holes 63 at different positions on the circular ring bases 61 adjacent to the circular ring bases 61 and then fastened through the fixing nuts 65, so that the arc-shaped stirring rods 64 on the two adjacent circular ring bases 61 up and down can be out of the same vertical plane, different stirring effects can be achieved on materials at the bottom in the crystallization tank body 1, the positioning pin shafts 62 are uniformly distributed along the circumferential direction of the top surface of the circular ring bases 61, the pin shaft holes 63 are uniformly distributed along the circumferential direction of the other end of the main shaft 31 and the circumferential direction of the bottom surface of the circular ring bases 61 respectively, the number of the positioning pin shafts 62 is the same as that of the pin shaft holes 63, the number of the pin shaft holes 63 is at least three, the positioning pin shafts 62 on the circular ring bases 61 can be inserted into the pin shaft holes 63 at different positions on the circular ring bases 61 adjacent to the circular ring bases 61 and then fastened through the fixing nuts, can play different stirring effects to the material at the bottom in the crystallizer body 1.

The utility model discloses a theory of operation is: adding materials into the crystallizing tank body 1 through the feeding port 12, driving the wall scraping device 4 to rotate by the motor 2 through the main shaft 31, sliding the sliding block 51 on the guide shaft tube 34 along the length direction of the guide shaft tube 34 under the action of centrifugal force, simultaneously sliding one end of the connecting rod 36 in the guide groove 351, and driving the mixing drum device 5 to be closer to the main shaft 31 through the connecting rod 36 under the action of the spring 352 when the rotating speed of the motor 2 is lower; when the rotating speed of the motor 2 is higher, the connecting rod 36 drives the mixing drum device 5 to be far away from the main shaft 31; the position of the circular truncated cone cylinder 52 can be fixed by screwing the locking nut 54 after the upper and lower positions of the circular truncated cone cylinder 52 are adjusted on the external screw 53, so that the circular truncated cone cylinder 52 can be stirred at different positions in the vertical and horizontal directions in the crystallization tank body 1; the motor 2 drives the wall scraping device 4 to rotate through the main shaft 31, and meanwhile materials attached to the inner wall of the crystallization tank body 1 can be scraped through two ends of the arc-shaped convex surface of the arc-shaped scraper body 421, and the scraped materials can directly fall into the crystallization tank body 1 or sequentially fall into the crystallization tank body 1 through the open groove 428 and the arc-shaped groove 427; the number and the positions of the scrapers 42 arranged on the scraper seat 41 can be selected according to requirements so as to scrape the attached materials at different positions on the inner wall of the crystal tank body 1; the cross rod seat fixing bolt 321 can sequentially penetrate through the outer wall of the cross rod seat 32 and be in threaded connection with threaded holes 311 at different positions on the outer wall of the main shaft 31 according to requirements, so that the positions of the wall scraping device 4 and the stirring cylinder device 5 in the crystallization tank body 1 can be adjusted up and down, and different stirring effects on materials in the crystallization tank body 1 can be achieved; the motor 2 can drive the arc-shaped stirring rod 64 to rotate through the main shaft 31, so that the materials at the bottom in the crystallizing tank body 1 can be stirred, and the materials are prevented from being deposited; the positioning pin shaft 62 on the circular base 61 can be inserted into the pin shaft holes 63 at different positions on the circular base 61 adjacent to the positioning pin shaft 61 and then fastened through the fixing nut 65, so that the arc-shaped stirring rods 64 on the two circular bases 61 adjacent up and down can be out of the same vertical plane, different stirring effects can be achieved on the materials at the bottom in the crystallizing tank body 1, and the materials at the bottom in the crystallizing tank body 1 can be stirred uniformly; and finally, after the materials are stirred and crystallized, discharging the materials from a discharge port 11.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stirring crystallizer is characterized in that: comprises a crystallizing tank body (1), the crystallizing tank body (1) is of a cylindrical structure, a motor (2) is arranged at the top of the crystallizing tank body (1), a discharge hole (11) is formed in the bottom of the crystallizing tank body (1), a feeding hole (12) is formed in one side of the motor (2), a stirring device (3) is arranged in the crystallizing tank body (1), the stirring device (3) comprises a main shaft (31), one end of the main shaft (31) is fixedly connected with an output shaft of the motor (2), a transverse rod seat (32) is further sleeved outside one end of the main shaft (31), a transverse rod (33) is horizontally arranged on the outer side wall of the transverse rod seat (32), one end of the transverse rod (33) is fixedly arranged on the transverse rod seat (32), a guide shaft tube (34) is arranged at the other end of the transverse rod (33), the transverse rod (33) and the guide shaft tube (34) are coaxial, one end of the guide shaft tube (34) is fixedly arranged, the other end of the guide shaft tube (34) is sequentially provided with a wall scraping device (4) and a stirring barrel device (5), the wall scraping device (4) comprises a scraper plate seat (41) and a plurality of scraper plates (42), the scraper plate seat (41) is parallel to the main shaft (31), the scraper plate seat (41) is fixedly arranged at the other end of the guide shaft tube (34), the scraper plates (42) are sequentially arranged on the scraper plate seat (41) from top to bottom, the stirring barrel device (5) comprises a sliding block (51) and a circular truncated cone barrel body (52), the sliding block (51) is slidably sleeved outside the guide shaft tube (34) between the scraper plate seat (41) and the cross rod (33), the bottom of the cross rod (33) is provided with a sliding groove (35), a connecting rod (36) is arranged between the sliding groove (35) and the sliding block (51), one end of the connecting rod (36) is slidably arranged in the sliding groove (35), and the other end of the connecting rod (36) is fixedly, the circular truncated cone cylinder (52) is movably arranged on the bottom surface of the sliding block (51), and the other end of the main shaft (31) is also provided with a plurality of tank bottom stirring devices (6).

2. A stirred tank crystallizer as defined in claim 1, wherein: the outer wall of one end of the main shaft (31) is further provided with a plurality of threaded holes (311), the threaded holes (311) are distributed at equal intervals along the length direction of the main shaft (31), the outer wall of the cross rod seat (32) is provided with cross rod seat fixing bolts (321), and the cross rod seat fixing bolts (321) penetrate through the outer wall of the cross rod seat (32) and are in threaded connection with the threaded holes (311).

3. A stirred tank crystallizer as defined in claim 1, wherein: the scraper (42) comprises an arc scraper body (421), the arc of the arc convex surface of the arc scraper body (421) is matched with the arc of the inner wall of the crystallizer body (1), the arc convex surface of the arc scraper blade body (421) is contacted with the inner wall of the crystallizer body (1), a fixing plate (422) is fixedly arranged in the arc concave surface of the arc scraper blade body (421), a plurality of first bolt holes (423) are arranged on the fixing plate (422), a plurality of second bolt holes (424) are arranged on the scraper blade seat (41), the positions of the second bolt holes (424) correspond to the positions of the first bolt holes (423), a plurality of fixing bolts (425) are also arranged in the second bolt holes (424), and the fixing bolt (425) passes through the second bolt hole (424) and is in threaded connection with the first bolt hole (423), and a plurality of brushes (426) are further arranged on the arc convex surface of the arc scraper blade body (421) at intervals.

4. A stirred tank crystallizer as defined in claim 3, wherein: the arc-shaped scraper blade comprises an arc-shaped scraper blade body (421), wherein an arc-shaped groove (427) is arranged in the arc-shaped scraper blade body (421), the shape of the arc-shaped groove (427) is the same as that of the arc-shaped scraper blade body (421), open grooves (428) are arranged at the two ends of the arc-shaped scraper blade body (421), the open grooves (428) are communicated with the arc-shaped groove (427), and the inner wall of the open groove (428) close to the arc-shaped convex surface end of the arc-shaped scraper blade body.

5. A stirred tank crystallizer as defined in claim 1, wherein: an outer screw rod (53) is further arranged on the bottom surface of the sliding block (51), the outer screw rod (53) is parallel to the main shaft (31), one end of the outer screw rod (53) is fixedly arranged on the bottom surface of the sliding block (51), the circular truncated cone cylinder (52) is of a hollow structure, the bottom surface of the circular truncated cone cylinder (52) is of an open shape, the other end of the outer screw rod (53) movably penetrates through the top surface of the circular truncated cone cylinder (52), a plurality of locking nuts (54) are further arranged on the outer screw rod (53), the locking nuts (54) are respectively positioned at the upper end and the lower end of the circular truncated cone cylinder (52), a guide groove (351) is further formed in the opposite inner wall of the sliding groove (35), the length direction of the guide groove (351) is the same as that of the sliding groove (35), a spring (352) is further arranged in the sliding groove (35), one end of the spring (352) is fixedly arranged on the inner wall of the sliding groove (35) close to the end of the, guide sliding blocks (353) are further arranged on two side walls of one end of the connecting rod (36), and the guide sliding blocks (353) are arranged in the guide grooves (351) in a sliding mode.

6. A stirred tank crystallizer as defined in claim 1, wherein: the tank bottom stirring device (6) comprises a circular ring base (61), the other end of a main shaft (31) is fixedly provided with a cylindrical rod (611), the cylindrical rod (611) and the main shaft (31) are on the same axis, the outer diameter of the cylindrical rod (611) is smaller than that of the main shaft (31), one end of the cylindrical rod (611) is fixedly arranged at the other end of the main shaft (31), the circular ring base (61) is sleeved outside the cylindrical rod (611), the top surface of the circular ring base (61) is provided with a plurality of positioning pin shafts (62), the other end of the main shaft (31) and the bottom surface of the circular ring base (61) are respectively provided with a plurality of pin shaft holes (63), the positions of the positioning pin shafts (62) correspond to the positions of the pin shaft holes (63), the shapes and the sizes of the positioning pin shafts (62) are matched with the shapes and the sizes of the pin shaft holes (63), and the positioning pin shafts (62) are respectively positioned in the pin shaft holes, a plurality of arc-shaped stirring rods (64) are uniformly distributed on the outer wall of the circular base (61) along the circumferential direction, the cylindrical rod (611) is of an external thread rod structure, and a fixing nut (65) is further arranged at the other end of the cylindrical rod (611).

7. A stirred tank crystallizer as defined in claim 6, wherein: the positioning pin shafts (62) are uniformly distributed along the circumferential direction of the top surface of the circular ring-shaped base (61), the pin shaft holes (63) are uniformly distributed along the circumferential direction of the other end of the main shaft (31) and the circumferential direction of the bottom surface of the circular ring-shaped base (61), the number of the positioning pin shafts (62) is the same as that of the pin shaft holes (63), and the number of the pin shaft holes (63) is at least three.