CN201500527U - Prilling tower for fusing and atomizing nicotinamide - Google Patents
Prilling tower for fusing and atomizing nicotinamide Download PDFInfo
- Publication number
- CN201500527U CN201500527U CN2009201213211U CN200920121321U CN201500527U CN 201500527 U CN201500527 U CN 201500527U CN 2009201213211 U CN2009201213211 U CN 2009201213211U CN 200920121321 U CN200920121321 U CN 200920121321U CN 201500527 U CN201500527 U CN 201500527U
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- tower
- granulation
- nicotinamide
- spraying melted
- cylindrical shell
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Abstract
The utility model discloses a prilling tower for fusing and atomizing nicotinamide, providing special equipment for prilling by fusing and atomizing the nicotinamide, and belonging to the field of fine chemical engineering. The prilling tower comprises a cylinder-shaped cylinder body, an atomizing nozzle which is installed at the middle upper part of the cylinder body, an exhaust pipe which is arranged at the top part of the cylinder body, an inverted cone-shaped expanding segment which is connected with the lower part of the cylinder body, and an air inlet pipe which is connected with the lower part of the inverted cone-shaped expanding segment. The particles in the prilling tower are always kept to be the status of fluidization, the particles on the surface of a bed layer are continuously updated, and the atomizing liquid drops are evenly coated on the surfaces of the nicotinamide particles, so that the particles in the bed lay can be evenly grown, and the distribution of particle diameter is good.
Description
Technical field
The utility model provides a kind of special equipment of granulation by spraying melted nicotinamide, belongs to field of fine chemical.
Background technology
Niacinamide (Nicotinamide) is a vitamin B3, chemical name 3-pyridine carboxamide, molecular formula C
6H
6N
2O, molecular weight 122.11,129～131 ℃ of fusing points, white crystalline powder, soluble in water or ethanol.Niacinamide is widely used in medicine, food, the feed industry, is the indispensable nutritional labeling of human body and animal growth.In addition, niacinamide also can be used as plant growth regulator, hair growth promoting agent, hair dyeing growth regulator, polymer stabilizer, electroplate liquid additive and biochemical reagents etc.
At present, the production method of domestic and international industrial niacinamide is a raw material with 3-picoline, 2-methyl-5-ethylpyridine or quinoline mainly, by oxidant direct oxidation or catalytic oxidation, ammoxidation generation nicotinic acid or cigarette nitrile, obtain niacinamide by hydrolysis of cigarette nitrile or niacinamide usp dehydration again.Regardless of adopting above-mentioned which kind of approach, final niacinamide all is to obtain after concentrating (as evaporation), filtration, drying by the aqueous solution, is powdery product by the niacinamide that has explained hereafter now, and its particle diameter is below 0.2mm.Because product cut size is very little, packing, field of employment dust from flying, the workshop dust pollution is serious, causes product loss on the one hand, and even more serious is that workman's health is damaged.And in accumulating, use,, easily reunite because product cut size is very little, and the easy moisture absorption and luming of niacinamide itself, the niacinamide of this reunion caking during as uses such as additive or auxiliary agents dispersiveness bad, have a strong impact on the downstream product quality.
Summary of the invention
The special equipment that a kind of granulation by spraying melted nicotinamide originally is provided is a granulation tower; By granulation tower, can obtain the granular niacin product of particle diameter at 0.2～0.8mm, reduce the moisture absorption caking phenomenon of production, field of employment dust pollution and storage and transport process, improve niacinamide as the dispersiveness of additive in subsequent product.
The utility model is achieved by the following technical solution: a kind of granulation by spraying melted nicotinamide tower is characterized in that it comprises cylindric cylindrical shell; Be installed on the atomizer of cylindrical shell middle and upper part; Be positioned at the blast pipe at cylindrical shell top; The back taper expanding reach that links to each other with the cylindrical shell bottom; The air intake duct that links to each other with back taper expanding reach bottom;
Described nozzle quantity is selected according to the size of spouting liquid, and general 1～8, preferred 1～4, and evenly distributed on the cylindrical shell cross section, the nozzle setting height(from bottom) is apart from the above 50mm～1000mm of fluid bed granulate face, preferred 100mm～750mm;
It is fixed that described air intake duct diameter comes according to the carrying velocity under the minimum grain size condition of product particle, is specially 0.8～1.4 of this carrying velocity, preferred 1.0～1.2;
Described back taper expanding reach cone angle is determined according to the internal friction angle of niacinamide, is 30 °～120 °, preferred 45 °～100 °.
Described barrel diameter is determined according to the minimum fluidization velocity of niacinamide particle, is 1～10 times of minimum fluidization velocity, preferred 3～8 times.
The utility model granulation tower endoparticle is in fluidized state all the time, and the bed face particle is brought in constant renewal in, and atomized drop is coated in the niacinamide particle surface equably, and the bed endoparticle can be realized evenly growing up, and particle diameter distributes.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, this fluidized bed prilling tower comprises: cylindric cylindrical shell 1; Be installed on the atomizer 2 of cylindrical shell middle and upper part; Be positioned at the blast pipe 3 at cylindrical shell top; The back taper expanding reach 4 that links to each other with the cylindrical shell bottom; The air intake duct 5 that links to each other with back taper expanding reach bottom.Nozzle quantity is chosen as 4 according to the size of spouting liquid, and evenly distributed on the cylindrical shell cross section, and the nozzle setting height(from bottom) is apart from the above 700mm of fluid bed granulate face; It is fixed that the air intake duct diameter comes according to the carrying velocity under the minimum grain size condition of product particle, is specially 1.1 of this carrying velocity; Back taper expanding reach cone angle is defined as 90 ° according to the internal friction angle of niacinamide; Barrel diameter is defined as 8 times of minimum fluidization velocity according to the minimum fluidization velocity of niacinamide particle, to keep the good fluidized state of fluid bed endoparticle, prevents to take place and dead bed glutinous the company between the particle.
Claims (10)
1. a granulation by spraying melted nicotinamide tower is characterized in that it comprises cylindric cylindrical shell (1); Be installed on the atomizer (2) of cylindrical shell middle and upper part; Be positioned at the blast pipe (3) at cylindrical shell top; The back taper expanding reach (4) that links to each other with the cylindrical shell bottom; The air intake duct (5) that links to each other with back taper expanding reach bottom.
2. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 1 is characterized in that described nozzle quantity is 1～8, and evenly distributed on the cylindrical shell cross section, and the nozzle setting height(from bottom) is apart from the above 50mm～1000mm of fluid bed granulate face.
3. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 2 is characterized in that the nozzle setting height(from bottom) is apart from the above 100mm～750mm of fluid bed granulate face.
4. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 2 is characterized in that described nozzle quantity is 1～4.
5. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 1 is characterized in that described air intake duct diameter is 0.8～1.4 of this carrying velocity.
6. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 5 is characterized in that described air intake duct diameter is 1.0～1.2 of this carrying velocity.
7. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 1 is characterized in that described back taper expanding reach cone angle is 30 °～120 °.
8. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 7 is characterized in that described back taper expanding reach cone angle is 45 °～100 °.
9. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 1 is characterized in that described barrel diameter is 1～10 times of minimum fluidization velocity.
10. a kind of granulation by spraying melted nicotinamide tower as claimed in claim 9 is characterized in that described barrel diameter is 3～8 times of minimum fluidization velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201213211U CN201500527U (en) | 2009-06-01 | 2009-06-01 | Prilling tower for fusing and atomizing nicotinamide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201213211U CN201500527U (en) | 2009-06-01 | 2009-06-01 | Prilling tower for fusing and atomizing nicotinamide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201500527U true CN201500527U (en) | 2010-06-09 |
Family
ID=42451469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201213211U Expired - Fee Related CN201500527U (en) | 2009-06-01 | 2009-06-01 | Prilling tower for fusing and atomizing nicotinamide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201500527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512850A (en) * | 2016-11-29 | 2017-03-22 | 浙江兰博生物科技股份有限公司 | Nicotinamide fusion and spray granulation tower and operation method thereof |
| CN106732171A (en) * | 2016-11-29 | 2017-05-31 | 浙江兰博生物科技股份有限公司 | A kind of multistage granulation by spraying melted nicotinamide tower and its operation method |
-
2009
- 2009-06-01 CN CN2009201213211U patent/CN201500527U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512850A (en) * | 2016-11-29 | 2017-03-22 | 浙江兰博生物科技股份有限公司 | Nicotinamide fusion and spray granulation tower and operation method thereof |
| CN106732171A (en) * | 2016-11-29 | 2017-05-31 | 浙江兰博生物科技股份有限公司 | A kind of multistage granulation by spraying melted nicotinamide tower and its operation method |
| CN106732171B (en) * | 2016-11-29 | 2019-01-22 | 浙江兰博生物科技股份有限公司 | A kind of multistage granulation by spraying melted nicotinamide tower and its operation method |
| CN106512850B (en) * | 2016-11-29 | 2019-03-08 | 浙江兰博生物科技股份有限公司 | A kind of granulation by spraying melted nicotinamide tower and its operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20110601 |