CN110986525A

CN110986525A - Rotary flash dryer

Info

Publication number: CN110986525A
Application number: CN201911355087.3A
Authority: CN
Inventors: 姜绍贵
Original assignee: Individual
Current assignee: Changzhou Huaxia Drying And Granulating Equipment Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-10
Anticipated expiration: 2039-12-25
Also published as: CN110986525B

Abstract

The invention relates to the technical field of material drying, and discloses a rotary flash evaporation dryer which comprises a machine body, a motor, a belt pulley and a stirrer, wherein the motor is installed on the side face of the machine body, the stirrer is installed in the machine body through the belt pulley, a bearing rod is installed on the stirrer, a sliding sleeve is rotatably installed in the middle of the bearing rod, a sleeve is fixedly connected to the side face of the sliding sleeve, a bolt is installed in the sleeve, and a scraper plate is slidably installed at the end of the bolt. Through the rotational design between bearing bar and the sliding sleeve for the sleeve can follow the rotation of (mixing) shaft and rotate, makes scraper blade and agitator keep coaxial rotation, utilizes the effect of centrifugal force to expand the scraper blade, thereby strikes off the material of adhesion on section of thick bamboo wall, keeps the smoothness of section of thick bamboo wall, reduces the frictional force between material and the section of thick bamboo wall, keeps the unblocked of material when rotatory, simultaneously behind the scraper blade contact material, but automatic atress shrink, can strike off the material from section of thick bamboo wall on the one hand.

Description

Rotary flash dryer

Technical Field

The invention relates to the technical field of material drying, in particular to a rotary flash evaporation dryer.

Background

The flash evaporation dryer consists of a heater, a feeder, a stirring and crushing system, a classifier, a drying main pipe, a cyclone separator, a bag-type dust remover, a fan and the like, and is mainly used for crushing and sieving materials such as paste, slurry, filter cakes and the like so as to prepare dry granular materials.

The working principle of the existing flash evaporation dryer is that hot air enters the bottom of the dryer tangentially, a powerful cyclone wind field is formed under the drive of a stirrer, then a material in a paste or slurry state is fed into the dryer by a feeder, the bottom of the dryer is crushed by the stirrer, hot air generates strong shearing, blowing and rotating effects on the material, so that the material is subjected to centrifugation, shearing collision and friction to be micronized, then the micronized material is dried by the hot air and then is lifted by the rotating airflow, and then enters a cyclone separator through a classifier, larger and wetter undried particles fall back to the bottom of the dryer to be continuously crushed and dried, after the material is crushed by a stirring shaft, part of the material is subjected to the centrifugal force and the shearing force, and is stressed to directly impact on the cylinder wall, because the moisture of the paste or slurry state material is larger, and the interior of the coagulated material generally contains a viscous agent, the interval between molecules is enlarged when the materials are stressed to deform, the adhesive force between partial materials and the cylinder wall is larger than the wind power of a cyclone wind field, the materials are adsorbed on the cylinder wall and are difficult to remove, the materials are dried with the heating of hot wind, the adhesive force between the materials and the cylinder wall is further increased, in order to remove the materials on the cylinder wall, the materials are usually cleaned from the cylinder wall by the rotating force of a stirrer, but the stirrer is in rigid contact with the materials when being removed again, the abrasion of the stirrer is aggravated, and meanwhile, the stirrer can only remove the materials in the adjacent area, and the thorough removal cannot be achieved;

and the material after the absorption can reduce the diameter of section of thick bamboo wall, in addition, the irregular absorption of material, cause section of thick bamboo wall surface irregularity not smooth, lead to the material constantly to increase with section of thick bamboo wall frictional force when the drying, cause the resistance grow of rotatory wind field on the one hand, the rotation rate that leads to the material slows down, pile up the bottom at the desicator easily, on the other hand section of thick bamboo wall diameter reduces gradually, the material constantly assembles bottom and the agitator contact at the desicator, lead to the (mixing) shaft constantly by wearing and tearing, passivation phenomenon appears, increase the load of motor, cause the drying rate of material, crushing efficiency reduces.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the rotary flash evaporation dryer which has the advantages of smooth material flow, no material accumulation and high drying efficiency, and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a rotatory flash distillation desicator, includes organism, motor, belt pulley, agitator, and the motor is installed in the side of organism, and the agitator passes through the belt pulley to be installed in the organism, install the bearing bar on the agitator, the sliding sleeve is installed in the rotation of middle part of bearing bar, the side fixedly connected with sleeve of sliding sleeve, install the bolt in the sleeve, the tip slidable mounting of bolt has the scraper blade, set up flutedly on the scraper blade, install the position sleeve in the recess, the tip of bolt passes through the recess and splices the inside at the scraper blade with the position sleeve.

Preferably, threaded connection has the threaded rod on the sleeve, the mid-mounting of threaded rod has the locating piece, positive and negative external screw thread has been seted up respectively with the upper and lower side of locating piece to the threaded rod, the internal thread has been seted up in the bolt, the bolt passes through external screw thread and internal thread with the threaded rod and links to each other, the diameter of locating piece is greater than the diameter of bolt and threaded rod department of linking to each other.

Preferably, the side-mounting of sliding sleeve has the positioning seat, install the locating lever in the positioning seat, it installs the connecting rod to rotate on the locating lever, the tip of connecting rod rotates and is connected with the slide bar, the both ends fixedly connected with supporting seat of slide bar, the side fixedly connected with rotation axis of supporting seat, it installs the bracing piece to rotate on the rotation axis, the both ends of bracing piece and the side fixed connection of agitator, the quantity of positioning seat, locating lever, connecting rod, slide bar, supporting seat is two and uses the axle center department symmetry of bracing piece to be connected with the upper and lower both sides of rotation axis.

The invention has the following beneficial effects:

1. this rotatory flash distillation desicator, through the rotational design between bearing bar and the sliding sleeve, make the sleeve can follow the rotation of (mixing) shaft and rotate, make scraper blade and agitator keep coaxial rotation, utilize the effect of centrifugal force to expand the scraper blade, thereby strike off the material of adhesion on the section of thick bamboo wall, keep the smoothness of section of thick bamboo wall, reduce the frictional force between material and the section of thick bamboo wall, keep the unblocked of material when rotatory, simultaneously behind scraper blade contact material, can receive the shrink by automatic atress, can strike off the material from the section of thick bamboo wall on the one hand, on the other hand can reduce the friction between scraper blade and the section of thick bamboo wall, make scraper blade and material change into the rotational contact by rigid contact, reduce the degree of wear of scraper blade, thereby increase the.

2. This rotatory flash distillation desicator, through the positioning seat, the rotational design of locating lever and connecting rod, make the scraper blade atress at the in-process of shrink, drive the sliding sleeve and rotate, thereby keep coaxial rotation with the sliding sleeve with the connecting rod rotation, make the connecting rod drive the rotation axis and be lever motion, thereby do synchronous shrink with two scraper blades, keep the symmetry of scraper blade, after the scraper blade is through absorbent material, resume to the expansion state by the effect of centrifugal force once more, make both sides keep equal position when the agitator rotates, reduce rocking and wearing and tearing of agitator, thereby accelerate striking off of material, increase the agitator life-span, make the material can not assemble the bottom at the desicator simultaneously, accelerate the drying of material.

Drawings

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

FIG. 2 is an enlarged schematic view of the squeegee;

FIG. 3 is an enlarged schematic view of the rotary shaft;

fig. 4 is a schematic bottom view of the rotary shaft.

In the figure: 1. a body; 2. a motor; 3. a stirrer; 4. a load-bearing bar; 5. a sliding sleeve; 6. a sleeve; 7. a threaded rod; 8. a bolt; 9. a squeegee; 10. a groove; 11. a positioning sleeve; 12. positioning blocks; 13. positioning seats; 14. positioning a rod; 15. a connecting rod; 16. a slide bar; 17. a supporting seat; 18. a rotating shaft; 19. a support 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.

Referring to fig. 1-4, a rotary flash dryer includes a machine body 1, a motor 2, a belt pulley, and a stirrer 3, wherein the motor 2 is installed at a side surface of the machine body 1, the stirrer 3 is installed in the machine body 1 through the belt pulley, the stirrer 3 is installed with a bearing rod 4, the bearing rod 4 is fixedly connected to the stirrer 3, when the stirrer 3 rotates, the bearing rod 4 rotates in the same way, so that the bearing rod 4 and the stirrer 3 keep coaxial rotation, the middle part of the bearing rod 4 is rotatably installed with a sliding sleeve 5, a side surface of the sliding sleeve 5 is fixedly connected with a sleeve 6, the sleeve 6 is installed with a plug 8, the end of the plug 8 is slidably installed with a scraper 9, so as to facilitate replacement of the scraper 9, after the scraper 9 is worn, only a new scraper 9 needs to be replaced again, thereby reducing the downtime of the apparatus, and increasing the economic benefit of the dryer, the scraper 9 is provided with a, the length of recess 10 is greater than the length that bolt 8 removed, install position sleeve 11 in the recess 10, bolt 8 passes through 11 joint scraper blades 9 of position sleeve, the tip of bolt 8 passes through

recess

10 and 11 pegs graft in the inside of scraper blade 9 of position sleeve, and the shrink shape at every turn of scraper blade 9 is that scraper blade 9 rotates to one side, reduces the contact dynamics of scraper blade 9 and material for after the scraper blade 9 atress is rotatory, drive sliding sleeve 5 again and rotate on bearing bar 4, be convenient for sliding sleeve 5 and scraper blade 9 keep synchronous motion.

Wherein the sleeve 6 is in threaded connection with a threaded rod 7, a positioning block 12 is arranged in the middle of the threaded rod 7, the positive and negative threads on the threaded rod 7 are separated, so that the two bolts 8 are distinguished from each other, the threaded rod 7 is provided with positive and negative external threads on the upper and lower sides of the positioning block 12 respectively, an internal thread is arranged in each bolt 8, each bolt 8 is connected with the threaded rod 7 through the external thread and the internal thread, the diameter of the positioning block 12 is larger than the diameter of the joint of the bolt 8 and the threaded rod 7, so that the distance between the two bolts 8 can be adjusted, the bolts 8 can be conveniently moved out or moved into the scraper 9, the efficiency of replacing the scraper 9 is increased, the time of replacing the scraper 9 is shortened, the smooth degree of the inner wall of the barrel can be kept by only replacing the scraper 9, the materials can be conveniently and, when the scraper 9 rotates, the sliding sleeve 5 can be directly driven to rotate.

Wherein, a positioning seat 13 is installed on the side surface of the sliding sleeve 5, a positioning rod 14 is installed in the positioning seat 13, a connecting rod 15 is installed on the positioning rod 14 in a rotating manner, so that the connecting rod 15 can rotate by different angles, thereby driving a rotating shaft 18 to do lever motion, the end part of the connecting rod 15 is connected with a sliding rod 16 in a rotating manner, two ends of the sliding rod 16 are fixedly connected with a supporting seat 17, the side surface of the supporting seat 17 is fixedly connected with the rotating shaft 18, a supporting rod 19 is installed on the rotating shaft 18 in a rotating manner, so that the rotating shaft 18 does circular motion with the axis of the supporting rod 19, thereby ensuring that two scraping plates 9 are synchronously contracted, on one hand, the two sides of the stirrer 3 are in a symmetrical state, on the other hand, after the scraping plate 9 on one side moves, the scraping plate, the abrasion degree of the scraper 9 is reduced, two ends of the supporting rod 19 are fixedly connected with the side face of the stirrer 3, the number of the positioning seats 13, the positioning rods 14, the connecting rods 15, the sliding rods 16 and the supporting seats 17 is two, the two ends of the supporting rod 19 are symmetrically connected with the upper side and the lower side of the rotating shaft 18 at the axis of the supporting rod 19, the rotating shaft 18 can do lever motion under the action of up-and-down connection, when the rotating shaft 18 at the lower side rotates towards the right side, the rotating shaft 18 at the upper side rotates towards the left side, otherwise, opposite actions are performed, therefore, no matter which direction the scraper 9 rotates, the scraper 9 can be enabled to do synchronous motion, the two connecting rods 15 are driven to do opposite motion.

The working principle is that the threaded rod 7 is screwed to drive the two bolts 8 to move reversely to the inside of the groove 10 gradually, when the stirrer 3 rotates, centrifugal force is generated to drive the sliding sleeve 5 and the sleeve 6 to rotate, thereby gradually expanding the scraper 9 to scrape off the material adsorbed on the cylinder wall, when the material with scale is encountered, the material is scraped from the cylinder by the rotating force of the scraper 9, then the scraper 9 is stressed to contract automatically to drive the sliding sleeve 5 to rotate, then the positioning seat 13 is driven to rotate to one side, then the connecting rod 15 is driven to push the sliding rod 16 to one side, then the lever principle effect of the rotating shaft 18 is utilized, when one end of the connecting rod 15 pushes one end of the rotating shaft 18 to the right side, the other end of the rotating shaft 18 is acted by the lever principle and can slide to the left, after the scraper 9 on one side slides to contract, the scraper 9 on the other side can be driven to contract synchronously, because the materials are not blocked, the scraper 9 continues to extend under the action of centrifugal force to scrape the materials on the cylinder body.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rotatory flash drying ware, includes organism (1), motor (2), belt pulley, agitator (3), and the side at organism (1) is installed in motor (2), and its characterized in that is installed in organism (1) through the belt pulley in agitator (3): install bearing bar (4) on agitator (3), sliding sleeve (5) are installed in the rotation of the middle part of bearing bar (4), side fixedly connected with sleeve (6) of sliding sleeve (5), install bolt (8) in sleeve (6), the tip slidable mounting of bolt (8) has scraper blade (9), seted up recess (10) on scraper blade (9), install position sleeve (11) in recess (10), the tip of bolt (8) is passed through recess (10) and is pegged graft in the inside of scraper blade (9) with position sleeve (11).

2. A spin flash dryer as claimed in claim 1, wherein: threaded connection has threaded rod (7) on sleeve (6), the mid-mounting of threaded rod (7) has locating piece (12), positive and negative external screw thread has been seted up respectively with the upper and lower side of locating piece (12) to threaded rod (7), the internal thread has been seted up in bolt (8), bolt (8) link to each other through external screw thread and internal thread with threaded rod (7), the diameter of locating piece (12) is greater than the diameter of bolt (8) and threaded rod (7) department of linking to each other.

3. A spin flash dryer as claimed in claim 1, wherein: the side-mounting of sliding sleeve (5) has positioning seat (13), install locating lever (14) in positioning seat (13), rotate on locating lever (14) and install connecting rod (15), the tip of connecting rod (15) rotates and is connected with slide bar (16), the both ends fixedly connected with supporting seat (17) of slide bar (16), the side fixedly connected with rotation axis (18) of supporting seat (17), rotate on rotation axis (18) and install bracing piece (19), the both ends of bracing piece (19) and the side fixed connection of agitator (3), the quantity of positioning seat (13), locating lever (14), connecting rod (15), slide bar (16), supporting seat (17) is two and is connected with the upper and lower both sides of rotation axis (18) with the axle center department symmetry of bracing piece (19).