CN106732171B - A kind of multistage granulation by spraying melted nicotinamide tower and its operation method - Google Patents
A kind of multistage granulation by spraying melted nicotinamide tower and its operation method Download PDFInfo
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- CN106732171B CN106732171B CN201611074970.1A CN201611074970A CN106732171B CN 106732171 B CN106732171 B CN 106732171B CN 201611074970 A CN201611074970 A CN 201611074970A CN 106732171 B CN106732171 B CN 106732171B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
- C07D213/82—Amides; Imides in position 3
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Abstract
The present invention provides a kind of multistage granulation by spraying melted nicotinamide tower and its operation methods.The present invention includes first stage tower and second level tower, and atomization nozzle component is arranged in the leaching liquid zone of first stage tower；In several suspension boards that are arranged above and below in floating zone, a large amount of sieve pores are uniformly opened on suspension board, floating zone is divided into several exclusion regions, the bottom edge of exclusion region and top margin are respectively provided with gear edge, one suspension board is set in each exclusion region, the periphery of suspension board and the side wall formation of exclusion region are slidably connected, and the periphery and gear edge of suspension board can form and abut against limit；Material guiding hopper funnel-shaped is set in wind-force area, and several outlet air spray heads are arranged in the lower section of material guiding hopper；Conveying pipeline is connected on the side wall of floating zone, hothouse is concatenated on conveying pipeline, dehvery pump is placed in hothouse, conveying pipeline is mutually connected with second level tower feed pipe, the tower body bottom of second level tower is connected collection bucket funnel-shaped, the osculum of collection bucket bottom is connected the discharge nozzle of second level tower, is uniformly arranged several spray film spray heads on the inner wall of collection bucket.
Description
Technical field
The invention belongs to field of mechanical technique, are related to a kind of granulation tower, and especially a kind of multistage niacinamide molten atomizing is made
Grain tower and its operation method.
Background technique
Niacinamide (Nicotinamide) i.e. vitamin B3, chemical name Niacinamide are 129~131 DEG C of fusing point, white
Color crystalline powder, soluble easily in water or ethyl alcohol.Niacinamide is widely used in medicine, food, is human body and animal in feed industry
The indispensable nutritional ingredient of growth and development.In addition, niacinamide also act as plant growth regulator, hair growth promoting agent,
Hair dyeing growth regulator, polymer stabilizer, electroplate liquid additive and biochemical reagents etc..
Currently, the production method of industry niacinamide is mainly with 3- picoline, 2- methyl -5- ethylpyridine or quinoline both at home and abroad
Quinoline is raw material, generates niacin or nicotinic acid nitrile by oxidant direct oxidation or catalysis oxidation, ammoxidation, then by nicotinic acid nitrile hydrolysis or niacin
Amine is dehydrated to obtain niacinamide.Regardless of which kind of above-mentioned approach used, final niacinamide is all by aqueous solution concentration (as evaporated), mistake
It is obtained after filter, drying, is powdery product by the niacinamide that prior art produces, partial size is in 0.2mm or less.Due to producing
Product partial size very little, packaging, field of employment dust from flying, workshop dust pollution is serious, on the one hand product is caused to lose, even more serious
Be to be damaged to worker's body.And in storage and transportation, use process, it is easy to reunite due to product cut size very little, and niacinamide sheet
The easy moisture absorption face agglomeration of body, the poor dispersion when niacinamide of this agglomeration of reuniting is used as additive or auxiliary agent etc., serious shadow
Ring downstream product quality.
Current existing granulation tower the problems such as there are shaped granule object specification is unevenly consistent, and granulation process is difficult to.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, one kind is proposed in the intracavitary setting multi-angle of tower
Distinguished and admirable reverse transport is spaced rotating spraying streamline, cooperates the filter structure that drifts along, and optimization is granulated dimensional uniformity, and realization was granulated
The multistage granulation by spraying melted nicotinamide tower and its operation method of journey controllability.
Object of the invention can be realized by the following technical scheme: a kind of multistage granulation by spraying melted nicotinamide tower, packet
First stage tower, second level tower and console are included, the first stage tower has cylindrical tower body, and exhaust is arranged in the top of the tower body
Pipe, the bottom of the tower body are arranged air inlet pipe, and the second level tower has a cylindrical tower body, the top of the tower body be arranged into
Discharge nozzle is arranged in expects pipe, the bottom of the tower body, is divided into wind-force area, floating zone and leaching liquid in the first stage tower from the bottom to top
Area；Atomization nozzle component is set in the leaching liquid zone, and the atomization nozzle component includes that several ascending are successively arranged
Circle is managed, and nozzle is uniformly distributed on the bottom surface of the circle pipe, and rotating assemblies, the rotating assembly is arranged in the centers of several circle pipes
Including central axis, the central axis periphery is sequentially arranged several pivoted housings, and several circle pipes are formed one by one with several pivoted housings
It is correspondingly connected with, the rotating assembly is drivingly connected by rotary electric machine；It is described in several suspension boards that are arranged above and below in the floating zone
A large amount of sieve pores are uniformly opened on suspension board, the specification of the sieve pore is set from small to large step by step according to the position of suspension board from the bottom to top
Set, the floating zone is divided into several exclusion regions, and the bottom edge of the exclusion region and top margin are respectively provided with gear edge, it is each it is described every
One suspension board is set in disconnected region, and the periphery of the suspension board and the side wall formation of exclusion region are slidably connected, described outstanding
The periphery of kickboard and gear edge can form and abut against limit；Material guiding hopper funnel-shaped, the guide are set in the wind-force area
The big mouth of bucket is connected to the inner cavity of the floating zone, and the osculum of the material guiding hopper is connected to the air inlet pipe, the lower section of the material guiding hopper
Several outlet air spray heads are set, and several outlet air spray heads connect air pump by blast pipe；It is connected on the side wall of the floating zone defeated
Expects pipe concatenates hothouse on the conveying pipeline, places dehvery pump, the conveying pipe end and the second level tower in the hothouse
Feed pipe be mutually connected, the tower body bottom of the second level tower is connected collection bucket funnel-shaped, the osculum of the collection bucket bottom
It is connected the discharge nozzle of the second level tower, several spray film spray heads is uniformly arranged on the inner wall of the collection bucket, are set on the console
Several control buttons are set, control mainboard is set in the console, the control mainboard passes through circuit connection rotary electric machine, wind
Pump, dehvery pump and spray film spray head.
In this multistage granulation by spraying melted nicotinamide tower, reversely rotated by interval of several circle pipes in spray process,
So that the streamlined injection of hydrojet, and then avoid the shooting force of linear type injection excessive and impact feed powder and cause further powder
Broken or dust raises；In addition the reverse rotation of adjacent turn pipe makes hydrojet streamlined at cross network, further enhances capture powder
Ability, and optimize powder liquid combine uniformity.The specification of all sieve pores on each suspension board is identical, adjacent suspension board it
Between, thus it is same specification particulate matter between adjacent suspension board that the sieve pore of top suspension board, which is greater than the sieve pore of lower section suspension board,
Section is screened, in the gap neutral gear of wind-force, the particulate matter less than sieve pore passes through sieve pore and falls in the screening section of lower section, and big
In on the suspension board that the particulate matter of sieve pore remains in this section.
In above-mentioned multistage granulation by spraying melted nicotinamide tower, steering bracket, institute is arranged in the bottom of the outlet air spray head
Stating steering bracket includes fixing seat, and the top of the fixing seat connects the outlet air spray head by universal joint, the universal joint
Telescopic cylinder is connected by push-pull rod on outer wall, the telescopic cylinder passes through console described in circuit connection.
In above-mentioned multistage granulation by spraying melted nicotinamide tower, it is arranged between the material guiding hopper and level-one tower side wall several
Drainage port is arranged in diversion trench, the level-one tower bottom, and the diversion trench is connected with drainage port.
In above-mentioned multistage granulation by spraying melted nicotinamide tower, the sieve pore on the suspension board is bellmouth, the cone
Upward, aperture is downward for the macropore in shape hole.It is arranged to bellmouth state, to be further conducive to draw different layers area particle diameter
Point, lower zone is dropped to because quality increases to avoid the particle being gradually increased.
In above-mentioned multistage granulation by spraying melted nicotinamide tower, filter screen is set on the nozzle of the air inlet pipe, it is described
Pass through dismountable clamp connection between filter screen and nozzle.Stop the bulk impurity being mixed in powder using filter screen, with
It avoids bulk impurity from entering in first stage tower and causes distinguished and admirable, spraying disorder, or even stop, block sieve pore on suspension board.
In above-mentioned multistage granulation by spraying melted nicotinamide tower, the quantity of several circle pipes is the even number in 4 to 12
It is a.
The operation method of multistage granulation by spraying melted nicotinamide tower, comprising the following steps:
1), according to the characteristic of powder and vulcanization be granulated specification requirement, by console set rotary electric machine revolving speed with
It turns to, to regulate and control the collocation of the forward and reverse of several circle pipes, the density of the streamlined injection of hydrojet, forward and backward is to more complicated mist
Liquid shape density into the net is bigger, and the streamlined interval of the bigger hydrojet of revolving speed is closer, thus in first stage tower inner cavity spray film concentration
Bigger, the binding capacity of spray film and powder is big and uniform；The volume of air supply of air pump and the size of wind speed are set by console, particle
The more big required volume of air supply of quality is bigger, and wind speed more bulky grain remains in that the time in first stage tower is shorter, and wind speed is got over little particle and deposited
The time stayed in first stage tower is longer；
2) feed powder, is blown by air inlet pipe, feed powder initially enters wind-force area, is gradually extended up by material guiding hopper, while going out
The distinguished and admirable lower support of wind spray head injection rises；Feed powder enters the spray film that contact is sprayed from top to bottom in floating zone, and it is solidifying to carry out feed powder
Poly- to gradually form particle, multilayer suspension plate in limit section under the action of the forces of the wind in floating up and down, by particle in sieve pore
Shuttles, gradually filter out increasing equal-specification particulate matter layer by layer；The particulate matter of final compound specification requirement is through filtering
Liquid zone is discharged from exhaust pipe；
3) when, feed powder passes through the floating zone of first stage tower, distinguished and admirable drive of the suction partially generated by dehvery pump enters conveying pipeline,
Operation is dried by hothouse, so that liquid material mixed before it is completed drying, second level tower is then entered by feed pipe
It is interior, it is fallen from the top down using gravity, console manipulates several spray film spray heads and sprays another liquid material upwards, makes particulate matter under
It is mixed in falling with this kind of liquid material, final another kind granular product is discharged from the discharge nozzle of second level tower.
In above-mentioned operation method, the collapsing length that telescopic cylinder drives push-pull rod is manipulated by console, with rotation
Universal joint adjusts the air outlet angle of outlet air spray head, and air outlet angle determines that the distinguished and admirable supporting force to particulate matter and leading particle are solidifying
Poly- dynamics and efficiency.
In above-mentioned operation method, after granulation tower stops operation, the spray film and powder remained inside first stage tower is mixed
It closes object and flows into diversion trench along side wall, and build up and be discharged by drainage port, to ensure the drying regime in first stage tower, and easily
It is cleaned in first stage tower.
Compared with prior art, this multistage granulation by spraying melted nicotinamide tower and its operation method are more in the intracavitary setting of tower
The distinguished and admirable reverse transport of angle is spaced rotating spraying streamline, cooperates the filter structure that drifts along, and optimization is granulated dimensional uniformity, is being granulated
Different size is sieved in the process, realize granulation process controllability, thus can according to the characteristic of feed powder and the requirement of finished product,
Control mode is flexibly formulated, the degree of controllability of finished product is improved.Additionally by multistage tower body is arranged, two can be obtained by being once fed production
Kind different product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this multistage granulation by spraying melted nicotinamide tower.
In figure, 1, first stage tower；2, air inlet pipe；3, exhaust pipe；4, atomization nozzle component；5, suspension board；6, edge is kept off；7, guide
Bucket；8, outlet air spray head；9, conveying pipeline；10, hothouse；11, dehvery pump；12, feed pipe；13, second level tower；14, collection bucket；15,
Spray film spray head；16, discharge nozzle.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, this multistage granulation by spraying melted nicotinamide tower, including first stage tower 1, second level tower 13 and console, one
Grade tower 1 has cylindrical tower body, and exhaust pipe 3 is arranged in the top of tower body, and air inlet pipe 2, second level tower 13 is arranged in the bottom of tower body
With cylindrical tower body, the top of tower body is arranged feed pipe 12, and the bottom of tower body is arranged discharge nozzle 16, in first stage tower 1 by
Under it is supreme be divided into wind-force area, floating zone and leaching liquid zone；It drenches and atomization nozzle component 4 is set in liquid zone, atomization nozzle component 4 includes
Several ascending circle pipes being successively arranged, enclose and are uniformly distributed nozzle on the bottom surface of pipe, and shaft is arranged in the center of several circle pipes
Component, rotating assembly include central axis, and central axis periphery is sequentially arranged several pivoted housings, and several circle pipes are formed one by one with several pivoted housings
It is correspondingly connected with, rotating assembly is drivingly connected by rotary electric machine；In being arranged above and below several suspension boards 5 in floating zone, on suspension board 5
Even to open a large amount of sieve pores, the specification of sieve pore is arranged from small to large step by step according to the position of suspension board 5 from the bottom to top, suspension Division
At several exclusion regions, the bottom edge of exclusion region and top margin are respectively provided with gear and a suspension board 5 are arranged along 6, each exclusion region, hang
The periphery of kickboard 5 and the side wall formation of exclusion region are slidably connected, and the periphery of suspension board 5 and gear can form along 6 and abut against limit；Wind
Material guiding hopper 7 funnel-shaped, the inner cavity of the big mouth connection floating zone of material guiding hopper 7 be set in power area, the osculum of material guiding hopper 7 be connected into
Several outlet air spray heads 8 are arranged in the lower section of tracheae 2, material guiding hopper 7, and several outlet air spray heads 8 connect air pump by blast pipe；Floating zone
Connect conveying pipeline 9 on side wall, hothouse 10 concatenated on conveying pipeline 9, place dehvery pump 11 in hothouse 10,9 end of conveying pipeline with
12 phase of feed pipe of second level tower 13 is connected, and the tower body bottom of second level tower 13 is connected collection bucket 14 funnel-shaped, 14 bottom of collection bucket
The osculum in portion is connected the discharge nozzle 16 of second level tower 13, is uniformly arranged several spray film spray heads 15, console on the inner wall of collection bucket 14
Several control buttons of upper setting, are arranged control mainboard in console, and control mainboard passes through circuit connection rotary electric machine, air pump, defeated
Material pump 11 and spray film spray head 15.
In this multistage granulation by spraying melted nicotinamide tower, reversely rotated by interval of several circle pipes in spray process,
So that the streamlined injection of hydrojet, and then avoid the shooting force of linear type injection excessive and impact feed powder and cause further powder
Broken or dust raises；In addition the reverse rotation of adjacent turn pipe makes hydrojet streamlined at cross network, further enhances capture powder
Ability, and optimize powder liquid combine uniformity.The specification of all sieve pores on each suspension board 5 is identical, adjacent suspension board 5 it
Between, thus it is same specification particulate matter between adjacent suspension board 5 that the sieve pore of top suspension board 5, which is greater than the sieve pore of lower section suspension board 5,
Screening section, in the gap neutral gear of wind-force, the particulate matter less than sieve pore passes through sieve pore and falls in the screening section of lower section, and
Particulate matter greater than sieve pore remains on the suspension board 5 in this section.
Steering bracket is arranged in the bottom of outlet air spray head 8, and steering bracket includes fixing seat, passes through universal joint at the top of fixing seat
Outlet air spray head 8 is connected, telescopic cylinder is connected by push-pull rod on the outer wall of universal joint, telescopic cylinder passes through circuit connection control
Platform.
Several diversion trenches are set between 1 side wall of material guiding hopper 7 and first stage tower, 1 bottom of first stage tower is arranged drainage port, diversion trench with
Drainage port is connected.
Sieve pore on suspension board 5 is bellmouth, and upward, aperture is downward for the macropore of bellmouth.It is arranged to bellmouth state, with
Further it is conducive to the division to different layers area particle diameter, drops to lower section because quality increases to avoid the particle being gradually increased
Region.
Filter screen is set on the nozzle of air inlet pipe 2, passes through dismountable clamp connection between filter screen and nozzle.It utilized
Strainer stops the bulk impurity being mixed in powder, enters in first stage tower 1 to avoid bulk impurity and causes distinguished and admirable, spraying disorder,
Even stop, block sieve pore on suspension board 5.
The quantity of several circle pipes is the even number in 4 to 12.
The operation method of multistage granulation by spraying melted nicotinamide tower, comprising the following steps:
1), according to the characteristic of powder and vulcanization be granulated specification requirement, by console set rotary electric machine revolving speed with
It turns to, to regulate and control the collocation of the forward and reverse of several circle pipes, the density of the streamlined injection of hydrojet, forward and backward is to more complicated mist
Liquid shape density into the net is bigger, and the streamlined interval of the bigger hydrojet of revolving speed is closer, thus in 1 inner cavity of first stage tower spray film concentration
Bigger, the binding capacity of spray film and powder is big and uniform；The volume of air supply of air pump and the size of wind speed are set by console, particle
The more big required volume of air supply of quality is bigger, and the time that wind speed more bulky grain remains in first stage tower 1 is shorter, and wind speed is got over little particle and deposited
The time stayed in first stage tower 1 is longer；
2) feed powder, is blown by air inlet pipe 2, feed powder initially enters wind-force area, it is gradually extended up by material guiding hopper 7, while
The distinguished and admirable lower support that outlet air spray head 8 sprays rises；Feed powder enters the spray film that contact is sprayed from top to bottom in floating zone, carries out feed powder
Cohesion gradually forms particle, and multilayer suspension plate 5 in limit section under the action of the forces of the wind in floating up and down, by particle in sieve pore
Interior shuttles gradually filter out increasing equal-specification particulate matter layer by layer；The particulate matter of final compound specification requirement passes through
Liquid zone is drenched, is discharged from exhaust pipe 3；
3) when, feed powder passes through the floating zone of first stage tower 1, distinguished and admirable drive of the suction partially generated by dehvery pump 11 enters conveying
Operation is dried by hothouse 10 in pipe 9, and mixed liquid material before it is made to complete drying, then by feed pipe 12 into
Entering in second level tower 13, is fallen from the top down using gravity, console manipulates several spray film spray heads 15 and sprays another liquid material upwards,
Mix particulate matter in whereabouts with this kind of liquid material, final another kind granular product is discharged from the discharge nozzle 16 of second level tower 13.
The collapsing length that telescopic cylinder drives push-pull rod is manipulated by console, adjusts outlet air spray head 8 to rotate universal joint
Air outlet angle, air outlet angle determines the distinguished and admirable supporting force to particulate matter and leading particle aggregation dynamics and efficiency.
After granulation tower stops operation, the spray film and powders mixture that 1 inside of first stage tower remains are led along side wall inflow
Chute, and build up and be discharged by drainage port, to ensure the drying regime in first stage tower 1, and it is easy to the cleaning of first stage tower 1.
This multistage granulation by spraying melted nicotinamide tower and its operation method, in the distinguished and admirable reverse fortune of the intracavitary setting multi-angle of tower
It is defeated, it is spaced rotating spraying streamline, cooperates the filter structure that drifts along, optimization is granulated dimensional uniformity, to different rule in granulation process
Lattice are sieved, and realize granulation process controllability, thus can flexibly formulate manipulation side according to the characteristic of feed powder and the requirement of finished product
Formula improves the degree of controllability of finished product.Additionally by multistage tower body is arranged, two kinds of different products can be obtained by being once fed production.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although first stage tower 1 is used more herein；Air inlet pipe 2；Exhaust pipe 3；Atomization nozzle component 4；Suspension board 5；Gear
Along 6；Material guiding hopper 7；Outlet air spray head 8；Conveying pipeline 9；Hothouse 10；Dehvery pump 11；Feed pipe 12；Second level tower 13；Collection bucket 14；Mist
Liquid spray head 15；The terms such as discharge nozzle 16, but it does not exclude the possibility of using other terms.The use of these items is only for
It is more convenient to describe and explain essence of the invention；It is construed as any additional limitation all and is and spirit of that invention
It disagrees.
Claims (9)
1. a kind of multistage granulation by spraying melted nicotinamide tower, including first stage tower, second level tower and console, the first stage tower, which has, is in
Exhaust pipe is arranged in cylindric tower body, the top of the tower body, and air inlet pipe is arranged in the bottom of the tower body, and the second level tower has
Feed pipe is arranged in cylindrical tower body, the top of the tower body, and discharge nozzle is arranged in the bottom of the tower body, which is characterized in that
Wind-force area, floating zone and leaching liquid zone are divided into the first stage tower from the bottom to top；Atomization nozzle component is set in the leaching liquid zone,
The atomization nozzle component includes several ascending circle pipes being successively arranged, and is uniformly distributed spray on the bottom surface of the circle pipe
Rotating assembly is arranged in the center of mouth, several circle pipes, and the rotating assembly includes central axis, and the central axis periphery sequentially covers
If several pivoted housings, several circle pipes connect one to one with several pivoted housing formation, and the rotating assembly is by rotary electric machine
It is drivingly connected；In several suspension boards that are arranged above and below in the floating zone, a large amount of sieve pores, the sieve are uniformly opened on the suspension board
The specification in hole is arranged from small to large step by step according to the position of suspension board from the bottom to top, and the floating zone is divided into several exclusion regions
Domain, the bottom edge of the exclusion region and top margin are respectively provided with gear edge, and a suspension board is arranged in each exclusion region, described
The periphery of suspension board and the side wall formation of exclusion region are slidably connected, and the periphery of the suspension board can form with the gear edge and abut against
Limit；Material guiding hopper funnel-shaped is set in the wind-force area, and the big mouth of the material guiding hopper is connected to the inner cavity of the floating zone, institute
The osculum for stating material guiding hopper is connected to the air inlet pipe, and several outlet air spray heads, several outlet air sprays are arranged in the lower section of the material guiding hopper
Head connects air pump by blast pipe；Conveying pipeline is connected on the side wall of the floating zone, and hothouse is concatenated on the conveying pipeline, it is described
Dehvery pump is placed in hothouse, the conveying pipe end is mutually connected with the feed pipe of the second level tower, the tower body of the second level tower
Bottom is connected collection bucket funnel-shaped, and the osculum of the collection bucket bottom is connected the discharge nozzle of the second level tower, the collection
It is uniformly arranged several spray film spray heads on the inner wall of bucket, several control buttons, setting in the console are set on the console
Control mainboard, the control mainboard pass through rotary electric machine, air pump, dehvery pump and spray film spray head described in circuit connection.
2. multistage granulation by spraying melted nicotinamide tower according to claim 1, which is characterized in that the bottom of the outlet air spray head
Steering bracket is arranged in portion, and the steering bracket includes fixing seat, and the top of the fixing seat connects the outlet air by universal joint
Spray head connects telescopic cylinder by push-pull rod on the outer wall of the universal joint, and the telescopic cylinder described in circuit connection by controlling
Platform processed.
3. multistage granulation by spraying melted nicotinamide tower according to claim 1, which is characterized in that the material guiding hopper and level-one
Several diversion trenches are set between tower side wall, and drainage port is arranged in the level-one tower bottom, and the diversion trench is connected with drainage port.
4. multistage granulation by spraying melted nicotinamide tower according to claim 1, which is characterized in that the sieve on the suspension board
Hole is bellmouth, and upward, aperture is downward for the macropore of the bellmouth.
5. multistage granulation by spraying melted nicotinamide tower according to claim 1, which is characterized in that the nozzle of the air inlet pipe
Upper setting filter screen, passes through dismountable clamp connection between the filter screen and nozzle.
6. multistage granulation by spraying melted nicotinamide tower according to claim 1, which is characterized in that the number of several circle pipes
Amount is the even number in 4 to 12.
7. the operation method of granulation tower according to claim 1, which comprises the following steps:
1), the specification requirement being granulated according to the characteristic of powder and vulcanization sets revolving speed and the steering of rotary electric machine by console,
To regulate and control the collocation of the forward and reverse of several circle pipes, the density of the streamlined injection of hydrojet, forward and backward is formed to more complicated spray film
The density of net is bigger, and the streamlined interval of the bigger hydrojet of revolving speed is closer, and thus the concentration of spray film is bigger in first stage tower inner cavity, mist
The binding capacity of liquid and powder is big and uniform；The volume of air supply of air pump and the size of wind speed are set by console, the quality of particle is got over
Big required volume of air supply is bigger, and wind speed more bulky grain remains in that the time in first stage tower is shorter, and wind speed gets over little particle and remains in one
Time in grade tower is longer；
2) feed powder, is blown by air inlet pipe, feed powder initially enters wind-force area, is gradually extended up by material guiding hopper, while spraying in outlet air
The distinguished and admirable lower support of head injection rises；Feed powder enters the spray film that contact is sprayed from top to bottom in floating zone, carry out feed powder cohesion by
Gradually form particle, multilayer suspension plate is past in sieve pore by particle under the action of the forces of the wind in floating up and down in limit section
It is multiple to shuttle, increasing equal-specification particulate matter is gradually filtered out layer by layer；The particulate matter of final compound specification requirement through filtering liquid zone,
It is discharged from exhaust pipe；
3) when, feed powder passes through the floating zone of first stage tower, distinguished and admirable drive of the suction partially generated by dehvery pump enters conveying pipeline, passes through
Operation is dried in hothouse, so that liquid material mixed before it is completed drying, is then entered in second level tower by feed pipe, benefit
It is fallen from the top down with gravity, console manipulates several spray film spray heads and sprays another liquid material upwards, makes particulate matter in whereabouts
It is mixed with this kind of liquid material, final another kind granular product is discharged from the discharge nozzle of second level tower.
8. operation method according to claim 7, which is characterized in that manipulate telescopic cylinder by console and drive push-pull rod
Collapsing length, to rotate the air outlet angle that universal joint adjusts outlet air spray head, air outlet angle determines the distinguished and admirable support to particulate matter
Power and leading particle aggregation dynamics and efficiency.
9. operation method according to claim 7, which is characterized in that after granulation tower stops operation, institute inside first stage tower
Remaining spray film and powders mixture flows into diversion trench along side wall, and builds up and be discharged by drainage port, to ensure first stage tower
Interior drying regime, and it is easy to first stage tower cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| JPH0342029A (en) * | 1989-07-07 | 1991-02-22 | Freunt Ind Co Ltd | Granulating and coating device and granulating and coating method using the same |
| CN101569840A (en) * | 2009-06-01 | 2009-11-04 | 杭州胜大药业有限公司 | Method of granulation by spraying melted nicotinamide |
| CN201500527U (en) * | 2009-06-01 | 2010-06-09 | 杭州胜大药业有限公司 | Prilling tower for fusing and atomizing nicotinamide |
| WO2013150090A1 (en) * | 2012-04-04 | 2013-10-10 | Lonza Ltd | Nicotinamide powder and process and device for its production |
| CN104248934A (en) * | 2013-06-25 | 2014-12-31 | 浙江升华拜克生物股份有限公司 | Spray granulation tower |
| CN204638136U (en) * | 2015-04-30 | 2015-09-16 | 常州市益思特干燥设备有限公司 | Niacinamide melting micro-capsule bag is by method process units |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0342029A (en) * | 1989-07-07 | 1991-02-22 | Freunt Ind Co Ltd | Granulating and coating device and granulating and coating method using the same |
| CN101569840A (en) * | 2009-06-01 | 2009-11-04 | 杭州胜大药业有限公司 | Method of granulation by spraying melted nicotinamide |
| CN201500527U (en) * | 2009-06-01 | 2010-06-09 | 杭州胜大药业有限公司 | Prilling tower for fusing and atomizing nicotinamide |
| WO2013150090A1 (en) * | 2012-04-04 | 2013-10-10 | Lonza Ltd | Nicotinamide powder and process and device for its production |
| CN104248934A (en) * | 2013-06-25 | 2014-12-31 | 浙江升华拜克生物股份有限公司 | Spray granulation tower |
| CN204638136U (en) * | 2015-04-30 | 2015-09-16 | 常州市益思特干燥设备有限公司 | Niacinamide melting micro-capsule bag is by method process units |
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