CN214276389U - Nanoscale flash evaporation dryer - Google Patents
Nanoscale flash evaporation dryer Download PDFInfo
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- CN214276389U CN214276389U CN202120388011.7U CN202120388011U CN214276389U CN 214276389 U CN214276389 U CN 214276389U CN 202120388011 U CN202120388011 U CN 202120388011U CN 214276389 U CN214276389 U CN 214276389U
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Abstract
The utility model relates to a nanometer flash evaporation dryer, which comprises a drying tower, a feeding device, a mechanical classifier and a hot air distributor, wherein the feeding device conveys materials into the drying tower through a feeding hole, the top end of the drying tower is provided with the mechanical classifier and a discharging hole, the inner wall of the drying tower is also provided with a plurality of airflow nozzles which are distributed radially, a drying chamber is formed at the upper side of the airflow nozzles in the drying tower, a crushing chamber is formed at the lower side of the airflow nozzles, the hot air distributor is arranged at the bottom of the drying tower, a rotatable movable knife seat is arranged at the center in the crushing chamber, a circular rotary air guide pore plate rotated by a follow-up knife seat is arranged at the bottom end of the movable knife seat, a plurality of groups of cap tongues are arranged on the rotary air guide pore plate coaxially, each group of cap tongue-shaped pores are arranged on the same circumference, the rotation direction of each cap tongue-shaped pore is consistent with the rotation direction of the rotary air guide pore plate, a static knife is arranged on the inner wall of the crushing chamber along the circumference, the movable knife seat is provided with a plurality of movable knives.
Description
Technical Field
The utility model relates to a pelletization equipment technical field, especially a nanometer flash drying machine who possesses superfine grinding, drying capacity in the twinkling of an eye.
Background
The flash evaporation dryer is characterized in that hot air enters the bottom of the dryer tangentially, and a powerful rotary wind field is formed under the drive of a stirrer. The materials are fed into the dryer by the spiral feeder, under the strong action of the high-speed rotating stirring paddle, the materials are dispersed under the action of impact, friction and shearing force, and the massive materials are quickly crushed, fully contacted with hot air, heated and dried. The dried material is carried by airflow and enters a dust collecting system for collection treatment, and the dust content is less than or equal to 50mg/m according with the environmental protection requirement3The tail gas is exhausted by a draught fan to finish the whole drying process.
The working principle of the existing flash dryer is as follows: the hot-air gets into the annular space of drying chamber bottom with tangential direction by the inlet tube to the heliciform rises, and simultaneously, the material is added in the tower by the charging means ration to carry out abundant heat exchange with the hot-air, great more wet material is by mechanical breakage under the agitator effect, the lower and less material of granularity of moisture content rises along with rotatory air current in the lump, carries to the separator and carries out gas-solid separation, and the finished product is collected the packing, and tail gas is then the evacuation after dust collector handles.
The defects of the prior art are that the materials in the crushing chamber do not move sufficiently and are easy to accumulate at the bottom of the drying chamber, so that the crushing and drying effects are affected.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a nanometer flash distillation desiccator that possesses superfine grinding, drying capacity in the twinkling of an eye.
In order to solve the technical problem, the utility model provides a nanometer flash evaporation dryer, including drying tower, loading attachment, mechanical classifier, hot air distributor, loading attachment carries the material to the drying tower in through the feed inlet, the top of drying tower sets up mechanical classifier and discharge gate, the inner wall of drying tower still sets up a plurality of radial distribution's air current shower nozzle, the drying chamber is formed to the upside of air current shower nozzle in the drying tower, forms the crushing chamber in the downside of air current shower nozzle, hot air distributor arranges the bottom in the drying tower, the center in the crushing chamber sets up rotatable movable cutter seat, the bottom of movable cutter seat sets up the circular rotatory orifice plate that the follow-up cutter seat rotated, sets up multiunit block tongue shape hole with the axle center on the rotatory air current orifice plate, each group of block tongue shape hole is arranged on same circumference, each block tongue shape hole's rotation direction is unanimous with the rotation direction of rotatory air current guide orifice plate, the inner wall of crushing room sets up quiet sword along circumference, it sets up a plurality of sword that move on the blade holder to move, it drives to move sword and rotatory wind-guiding orifice plate and rotates to move the blade holder during use, hot-blast lid cap tongue shape hole rotation entering crushing room and the drying chamber of rotatory wind-guiding orifice plate of hot air distributor, the material gets into in the drying tower through the feed inlet, the air current shower nozzle spouts into high-pressure draught and forms the high-velocity air curtain below the feed inlet, move sword and quiet sword and smash the material that gets into the crushing room, the material that satisfies the particle size requirement passes in the high-velocity air curtain gets into the drying chamber and rises to the mechanical classifier at drying tower top, satisfy discharging through the discharge gate of particle size requirement.
Furthermore, the static knife is provided with a plurality of reversed trapezoidal static knife teeth, and the static knife teeth are arranged on the same circumference.
Furthermore, the tail end of the movable knife is hinged and matched with the movable knife seat, so that the movable knife is flush with the static knife when the movable knife is adjusted to the horizontal position, and the movable knife is used for adjusting the angle of the movable knife and the gap between the movable knife and the static knife.
Furthermore, the front end of the movable knife is provided with a Y-shaped cutting edge, so that the crushing effect is improved.
Further, the surface of the moving knife is sprayed with a tungsten carbide or zirconium oxide coating, and the surface of the static knife is sprayed with a tungsten carbide or zirconium oxide coating, so that the surface hardness of the static knife is improved.
Furthermore, the feeding device is a shaftless screw feeder which comprises a casing, a feeding motor and a shaftless screw body, the front end of the casing is provided with a feeder inlet, the tail end of the casing extends into the feeding port, the shaftless screw body is rotatably arranged in the casing, the feeding motor is in transmission fit with the shaftless screw body, the material enters the casing through the feeder inlet, and the rotating shaftless screw body feeds the material into the drying tower.
Furthermore, loading attachment is double screw feeder, and double screw feeder includes casing, reinforced motor, sets up first pay-off screw rod and the second pay-off screw rod in the casing side by side, the front end of casing sets up the feeder import, and the tail end of casing stretches into the feed inlet, and first pay-off screw rod and the rotatable setting of second pay-off screw rod are in the casing, reinforced motor and first pay-off screw rod transmission cooperation, and first pay-off screw rod is through gear assembly and second pay-off screw rod transmission cooperation to make reinforced motor can drive first pay-off screw rod and second pay-off screw rod synchronous revolution, the material gets into the casing through the feeder import, the first pay-off screw rod of pivoted and second pay-off screw rod send the material into the drying tower.
Furthermore, the nanoscale flash evaporation dryer also comprises a coarse crushing machine, a discharge port of the coarse crushing machine is communicated with an inlet of a feeder of the feeding device, and materials enter the feeding device after being coarsely crushed by the coarse crushing machine.
Further, nanometer flash distillation desiccator still includes inverter motor and transmission shaft, the top of transmission shaft stretches into in the crushing chamber and moves the cutter holder transmission cooperation, the tail end and the inverter motor transmission cooperation of transmission shaft to make inverter motor can drive and move the cutter holder, rotatory wind-guiding orifice plate and rotate, and adjust the rotational speed.
Furthermore, a mat type net is arranged on the rotary air guide pore plate, so that material leakage is avoided.
The working method of the nanometer flash evaporation dryer comprises the following steps,
A. according to the particle size of the materials to be crushed, the angle of each movable cutter is adjusted to adjust the distance between the Y-shaped cutting edge and the static cutter teeth, the variable frequency motor is started to drive the movable cutter holder and the rotary air guide pore plate to rotate, and the movable cutter is driven to rotate.
B. And starting the hot air distributor, so that the heated hot air enters the crushing chamber and the drying chamber through the cap tongue-shaped holes of the rotary air guide hole plate and rotates.
C. And introducing externally connected compressed air into each airflow nozzle to form a high-speed airflow curtain on the upper side of the static knife.
D. The material to be crushed is put into the drying tower through the feeding device, the material enters the crushing chamber under the action of gravity and is crushed by the movable knife rotating at high speed, the crushed material flows to the inner wall of the crushing chamber under the centrifugal action of the movable knife base and is crushed for the second time by the stationary knife, the material with smaller particle size and meeting the crushing requirement passes through the high-speed airflow curtain and enters the drying chamber, and the mechanical classifier is started to send the material meeting the requirement out through the discharge port; the material which does not meet the requirement of the particle size sinks along the inner wall of the drying tower and enters the drying chamber again for crushing.
The technical effects of the utility model are that: (1) compared with the prior art, the nanometer flash evaporation dryer breaks up and crushes materials to obtain micro particles in the crushing chamber under the shearing of the inverted trapezoidal static knife and the Y-shaped movable knife; (2) hot air enters the crushing chamber through the rotary air guide hole plate rotating at a high speed to generate rotary airflow, materials generate centrifugal force under the action of the rotary airflow, material particles with large particle size are blown to the inner wall of the crushing chamber, and the static knife is used for crushing; (3) the arrangement of the airflow curtain can prevent the material particles with large particle size from flowing out of the crushing chamber, so that the material particles with large particle size sink for secondary crushing, and the crushing effect is improved; (4) the rotary air guide hole plate is arranged to be circular, the rotary air guide hole plate rotates at a high speed along with the cutter holder, and hot air enters the crushing chamber to form rotary airflow through the arrangement of a plurality of groups of nut cap tongue-shaped holes in the same rotation direction, so that the material can be effectively prevented from sinking to the bottom; the rotating speed of hot air is accelerated, meanwhile, turbulent flow is formed at the bottom of the crushing chamber, and the materials are dried and crushed; (5) the tail end of the movable knife is hinged and matched with the movable knife seat, and the angle of the movable knife can be adjusted according to the particle size of the crushed material so as to adjust the gap between the movable knife and the static knife and improve the crushing effect.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
FIG. 1 is a schematic cross-sectional view of a nano-scale flash dryer according to the present invention;
FIG. 2 is a schematic cross-sectional view of the lower part of the nano-scale flash dryer of the present invention;
FIG. 3 is a schematic view of the radial cross-section structure of the lower part of the nano-scale flash dryer of the present invention;
fig. 4 is a schematic structural view of a rotary air guide hole plate.
In the figure:
the device comprises a drying tower 1, a base 2, a variable frequency motor 3, a transmission shaft 4, a first belt 5, a drying chamber 6, a crushing chamber 7, a feeding device 8, an airflow spray head 9, a grading motor 10, a mechanical classifier 11, a discharge hole 12, a hot air distributor volute 13, a guide plate 14, a rotary air guide pore plate 15, a movable knife 16, a stationary knife 17, a movable knife base 18, a pressure relief hole 19, a baffle ring 20, a cap tongue-shaped hole 21 and a volute air guide chamber 22.
Detailed Description
The inner wall of the drying tower 1 is also symmetrically provided with 8 airflow nozzles 9 which are distributed radially, each airflow nozzle 9 is uniformly distributed on the same circumference, and the airflow nozzles 9 are communicated with an external air source and used for supplying compressed air to form a high-speed airflow curtain.
A drying chamber 6 is formed in the drying tower 1 on the upper side of an airflow spray head, a crushing chamber 7 is formed on the lower side of the airflow spray head 9, a base 2 is arranged at the bottom of the drying tower 1, a hot air distributor is arranged on one side of the base 2 and comprises a hot air distributor volute 13, a guide plate 14 is arranged in the hot air distributor volute 13 to guide hot air entering the hot air distributor volute 13 to form rotary hot air, a volute air guide chamber 22 is formed in the center of the hot air distributor volute 13, and a pressure relief opening 19 is formed in the bottom end of the volute air guide chamber 22.
The bottom of the crushing chamber 7 is provided with a baffle ring 20 which extends into a volute air guide chamber 22 and is sealed, the center of the baffle ring 20 is provided with a rotatable movable cutter holder 18 and a circular rotary air guide pore plate 15, and the edge of the rotary air guide pore plate 15 is in clearance fit with the baffle ring 20, so that the rotary air guide pore plate 15 rotates along with the movable cutter holder 18; 4 groups of cap tongue-shaped holes 21 are coaxially arranged on the rotary air guide pore plate 15, each group of cap tongue-shaped holes 21 are arranged on the same circumference, the rotation direction of each cap tongue-shaped hole 21 is consistent with the rotation direction of the rotary air guide pore plate 15, the bottom of the drying tower 1 is also provided with a variable frequency motor 3 and a transmission shaft 4, the top end of the transmission shaft 4 extends into the crushing chamber 7 to be in transmission fit with the movable tool apron 18, the transmission shaft 4 is in transmission fit with the base 2 through a bearing, and the bearing is cooled by lubricating oil; the tail end of the transmission shaft 4 is in transmission fit with the variable frequency motor 3 through the first belt 5, so that the variable frequency motor 3 can drive the movable tool apron 18 and the rotary air guide pore plate 15 to rotate and adjust the rotating speed.
The inner wall of the crushing chamber 7 is circumferentially provided with a static cutter 17, the static cutter 17 is provided with a plurality of static cutter teeth in a reversed trapezoid shape, and each static cutter tooth is arranged on the same circumference.
The movable knife base 18 is provided with a plurality of movable knives 16, and the tail end of each movable knife 16 is hinged and matched with the movable knife base 18, so that the movable knife 16 is flush with the fixed knife 17 when the movable knife 16 is adjusted to the horizontal position, and the movable knife 16 and the fixed knife 17 are used for adjusting the angle of the movable knife 16 and the gap between the movable knife 16 and the fixed knife 17; the front end of the movable knife 16 is provided with a Y-shaped blade, so that the crushing effect is improved; the surface of the movable knife 16 is sprayed with a tungsten carbide or zirconium oxide coating, the surface of the static knife 17 is sprayed with a tungsten carbide or zirconium oxide coating, the surface hardness of the movable knife is improved, a dynamic balance test is required before the coating is sprayed, the mechanical noise is reduced, and the stable operation is realized.
When the device is used, the movable knife holder 18 drives the movable knife 16 and the rotary air guide pore plate 15 to rotate, hot air of the hot air distributor enters the crushing chamber 7 and the drying chamber 6 through the cap peak hole 21 of the rotary air guide pore plate 15 in a rotating mode, materials enter the drying tower 1 through the feeding hole, the airflow nozzle 9 sprays high-pressure airflow to form a high-speed airflow curtain below the feeding hole, the movable knife 16 and the fixed knife 17 crush the materials entering the crushing chamber 7, the materials meeting the particle size requirement penetrate through the high-speed airflow curtain to enter the drying chamber 6 and ascend to the mechanical classifier 11 at the top of the drying tower 1, and the materials meeting the particle size requirement are discharged through the discharging hole 12.
Preferably, the nanoscale flash evaporation dryer further comprises a coarse crusher, a discharge port of the coarse crusher is communicated with an inlet of a feeder of the feeding device 8, the material enters the feeding device 8 after being coarsely crushed by the coarse crusher, and the coarse crusher crushes the material into granular material with the grain diameter not more than 10 mm.
Preferably, a mat-type net is arranged on the rotary air guide pore plate 15, so that material leakage is avoided.
Example 2
On the basis of embodiment 1, the nanoscale flash evaporation dryer of the present embodiment has the following modifications that the feeding device 8 is a double-screw feeder, the double-screw feeder comprises a casing, a feeding motor, a first feeding screw and a second feeding screw which are arranged in the casing side by side, the front end of the casing is provided with a feeder inlet, the tail end of the casing extends into the feeding port, the first feeding screw and the second feeding screw are rotatably arranged in the casing, the feeding motor is in transmission fit with the first feeding screw, the first feeding screw is in transmission fit with the second feeding screw through a gear assembly, so that the feeding motor can drive the first feeding screw and the second feeding screw to synchronously rotate, the materials enter the shell through the feeder inlet, and are fed into the drying tower 1 through the rotating first feeding screw and the second feeding screw, and the shaftless screw feeder or the double-screw feeder is adopted for feeding, thereby ensuring the feeding uniformity.
Example 3
The working method of the nanometer flash evaporation dryer comprises the following steps,
A. according to the particle size of the materials to be crushed, the angle of each movable knife 16 is adjusted to adjust the distance between the Y-shaped cutting edge and the static knife teeth, the variable frequency motor 3 is started, the movable knife holder 18 and the rotary air guide pore plate 15 are driven to rotate, and the movable knife 16 is driven to rotate.
B. The hot air distributor is started, so that the heated hot air enters the crushing chamber 7 and the drying chamber 6 through the visor shape holes 21 of the rotary air guide hole plate 15 and rotates.
C. The externally connected compressed air is introduced into each airflow nozzle 9 to form a high-speed airflow curtain on the upper side of the static knife 17.
D. The material to be crushed is put into the drying tower 1 through the feeding device 8, the material enters the crushing chamber 7 under the action of gravity and is crushed by the movable knife 16 rotating at high speed, the crushed material flows to the inner wall of the crushing chamber 7 under the centrifugal action of the movable knife seat 18, the material with larger particle size flows to be secondarily crushed by the stationary knife 17, the material with smaller particle size and meeting the crushing requirement passes through the high-speed airflow curtain to enter the drying chamber 6, and the mechanical classifier 11 is started to send the material meeting the requirement out through the discharge port 12; the material which does not meet the requirement of the particle size sinks along the inner wall of the drying tower 1 and enters the drying chamber 6 again for crushing.
The nanometer flash evaporation dryer is mainly used for the production of powder materials such as cobalt hydroxide, silicon dioxide, superfine alumina, cerium oxide, zirconium oxide and the like or the production of catalyst industries, and also used for the production of powder materials such as lithium batteries, ion membranes, graphene, carbon fibers and the like.
It should be understood that the above examples are only for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the scope of the invention.
Claims (9)
1. A nanoscale flash evaporation dryer is characterized by comprising a drying tower, a feeding device, a mechanical classifier and a hot air distributor, wherein the feeding device conveys materials into the drying tower through a feeding hole, the top end of the drying tower is provided with the mechanical classifier and a discharging hole, the inner wall of the drying tower is further provided with a plurality of airflow nozzles which are distributed radially, a drying chamber is formed on the upper side of the airflow nozzles in the drying tower, a crushing chamber is formed on the lower side of the airflow nozzles, the hot air distributor is arranged at the bottom of the drying tower, a rotatable movable cutter holder is arranged at the center in the crushing chamber, a circular rotary air guide pore plate rotated by a follow-up cutter holder is arranged at the bottom end of the movable cutter holder, a plurality of groups of cover cap tongues are arranged on the rotary air guide pore plate coaxially, the cover cap tongue-shaped holes are arranged on the same circumference, the rotation direction of each cover cap tongue-shaped hole is consistent with the rotation direction of the rotary air guide pore plate, a static cutter is arranged on the inner wall of the crushing chamber along the circumference, the movable knife seat is provided with a plurality of movable knives.
2. The nano-scale flash dryer according to claim 1, wherein the stationary blade is provided with a plurality of stationary blade teeth of an inverted trapezoid shape, each stationary blade tooth being disposed for use on a same circumference.
3. The nanometer-scale flash dryer according to claim 1 or 2, wherein the tail end of the movable knife is in hinged fit with the movable knife base, so that the movable knife is flush with the stationary knife when the movable knife is adjusted to a horizontal position.
4. The nanoscale flash dryer according to claim 3, wherein a Y-shaped blade is arranged at the front end of the moving blade.
5. The nanoscale flash dryer as claimed in claim 4, wherein the surface of the moving blade is coated with tungsten carbide or zirconium oxide, and the surface of the static blade is coated with tungsten carbide or zirconium oxide.
6. The nano-scale flash dryer according to claim 5, wherein the feeding device is a shaftless screw feeder, the shaftless screw feeder comprises a casing, a feeding motor and a shaftless screw, the front end of the casing is provided with a feeder inlet, the tail end of the casing extends into the feeding hole, the shaftless screw is rotatably arranged in the casing, the feeding motor is in transmission fit with the shaftless screw, the material enters the casing through the feeder inlet, and the rotating shaftless screw feeds the material into the drying tower.
7. The nanometer-scale flash dryer according to claim 5, wherein the feeding device is a double screw feeder, the double screw feeder comprises a casing, a feeding motor, a first feeding screw and a second feeding screw which are arranged in the casing side by side, the front end of the casing is provided with a feeder inlet, the tail end of the casing extends into the feeding port, the first feeding screw and the second feeding screw are rotatably arranged in the casing, the feeding motor is in driving fit with the first feeding screw, the first feeding screw is in driving fit with the second feeding screw through a gear assembly, so that the feeding motor can drive the first feeding screw and the second feeding screw to synchronously rotate, and the material enters the casing through the feeder inlet, and the rotating first feeding screw and the rotating second feeding screw feed the material into the drying tower.
8. The nano-scale flash evaporation dryer according to claim 6 or 7, further comprising a coarse crusher, wherein a discharge port of the coarse crusher is communicated with an inlet of a feeder of the feeding device, and the material enters the feeding device after being coarsely crushed by the coarse crusher.
9. The nanometer flash dryer according to claim 8, further comprising a variable frequency motor and a transmission shaft, wherein the top end of the transmission shaft extends into the crushing chamber to be in transmission fit with the movable cutter holder, and the tail end of the transmission shaft is in transmission fit with the variable frequency motor, so that the variable frequency motor can drive the movable cutter holder and the rotary air guide pore plate to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120388011.7U CN214276389U (en) | 2021-02-22 | 2021-02-22 | Nanoscale flash evaporation dryer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120388011.7U CN214276389U (en) | 2021-02-22 | 2021-02-22 | Nanoscale flash evaporation dryer |
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| CN214276389U true CN214276389U (en) | 2021-09-24 |
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| CN202120388011.7U Active CN214276389U (en) | 2021-02-22 | 2021-02-22 | Nanoscale flash evaporation dryer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964038A (en) * | 2021-02-22 | 2021-06-15 | 江苏宇通干燥工程有限公司 | Nanoscale flash evaporation dryer and working method thereof |
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2021
- 2021-02-22 CN CN202120388011.7U patent/CN214276389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964038A (en) * | 2021-02-22 | 2021-06-15 | 江苏宇通干燥工程有限公司 | Nanoscale flash evaporation dryer and working method thereof |
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