CN103752025A - Spray dryer - Google Patents
Spray dryer Download PDFInfo
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- CN103752025A CN103752025A CN201410022174.8A CN201410022174A CN103752025A CN 103752025 A CN103752025 A CN 103752025A CN 201410022174 A CN201410022174 A CN 201410022174A CN 103752025 A CN103752025 A CN 103752025A
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Abstract
The invention relates to a spray dryer, comprising a dryer tower body and a frame for supporting the dryer tower body, wherein an air distributor and an atomizer are arranged at the top of a main dryer body; the air distributor is communicated with a hot air supply device through a pipeline; the atomizer is communicated with a material supply device through the pipeline; the dyer tower body comprises an upper tower body and a lower tower cone; the upper tower body and the lower tower cone are in communicated hollow jacket forms; an air feeder for blowing air to the inside of the jacket is arranged on the lower tower cone; a tower top jacket is arranged on the upper tower body; an air outlet is formed on the tower top jacket and communicated with an air inlet of the hot air supply device through a pipeline; a discharge hole is also formed at the bottom of the lower tower cone. The spray dryer adopts the tower body with the jacket structure, the temperature of the inner wall of the tower body is reduced by introducing air to the jacket, the material is prevented from being adhered to the wall, air entering the tower body to be preheated enters the hot air supply device again, and the material is dried after being heated, so that the overall operation energy consumption of the equipment is effectively reduced, and the purposes of saving energy and reducing emission are achieved.
Description
Technical field
The present invention relates to drying machine technical field, especially a kind of spray dryer.
Background technology
Centrifugal spray drying is to utilize centrifugal type atomizer that some liquid material is dried, and liquid process is shaped and is dried in industry the technique of extensive use.Be best suited for and from solution, emulsion, suspension and pasty state liquid charging stock, generate powdery, granular solids product.Therefore,, when the particle size distribution of finished product, residual water content, bulk density and grain shape must meet accurate standard, spraying is dry is one very good technique.
As shown in Figure 1, the operation principle of spray dryer is: air, by heater, enters the air distributor at centrifugal spray drier top, and hot-air evenly enters drier in the shape of a spiral.Feed liquid is passed through filter by the centrifugal atomizer that is pumped to drier top by material fluid bath, make feed liquid be sprayed into minimum vaporific drop, feed liquid contacts with hot-air stream, moisture evaporates rapidly, at utmost point short time inner drying finished product, finished product is discharged by drying tower bottom and cyclone separator, and waste gas is discharged by blower fan.
Existing spray dryer has sticky wall problem, when liquid material is dry, is bonded in drier inwall, and available technology adopting pneumatic hammer knocks drier in real time, material is come off, but when drier inner wall temperature is higher, if can not in time material be peeled off, will scorch material.For this problem, technical staff can only be again by reducing material feed speed or reducing hot blast temperature, to reduce the problem of materials from bonding at drier inwall.This is the method for curing the symptoms, not the disease, and has reduced production efficiency, has reduced output, causes drying cost to rise, therefore uneconomical being suitable for.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the technical problem that spray dryer inwall of the prior art can bonding material, a kind of spray dryer is provided, adopt jacket type housing structure, and pass into air in chuck, play the effect that reduces drying machine tower body inner wall temperature, when dried material, just can not produce the problem of the sticky wall of material, fundamentally solved the defect of prior art, and in tower body, the air of preheating again enters hot air supply device and is heated into hot-air material is dried, and can effectively reduce the overall energy consumption of drying machine.
The technical solution adopted for the present invention to solve the technical problems is: a kind of spray dryer, comprise the frame of drying machine tower body and support drying machine tower body, the top of drying machine main body is provided with air distributor and atomizer, described air distributor is by pipeline connection hot air supply device, described atomizer is by pipeline connection material feedway, described drying machine tower body comprises tower body and lower tower cone, described upper tower body and the hollow jacket type of lower tower cone for being interconnected, on described lower tower cone, be provided with to the pressure fan that blasts air in chuck, described upper tower body is provided with tower top chuck, on described tower top chuck, have air outlet, described air outlet is communicated with the air inlet of hot air supply device by pipeline, described lower tower cone bottom is also provided with discharge gate.By adopting the tower body of jacket type structure, and pass into air in chuck, tower body inwall is lowered the temperature, effectively prevent that material from gluing wall, prevent that material is because of overheated and rotten.
Further, for the ease of washer-drier inwall, described upper tower body inside is provided with multiple shower nozzles that spray cleaning fluid to tower wall, and described shower nozzle connects flushing water pump by pipeline.When shutting down, can clean, reduced cleaning difficulty.
As preferably, described shower nozzle is rotating sprinkler.When cleaning, rotating sprinkler can rotate, to avoid cleaning dead angle.
Further, for avoiding material to glue wall completely, described drying machine tower body comprises and on tower body and lower tower cone, is equipped with multiple pneumatic hammers that knock tower body inwall when work.When dry, pneumatic hammer knocks tower body inwall, and material is come off.
Concrete, described hot air supply device comprises air blast and steam heater, the air inlet of described air blast is by the air outlet of pipeline connection tower top chuck, and the air outlet of air blast is communicated with the air inlet of steam heater, and the air outlet of steam heater is by pipeline connection air distributor.
Further, described discharge gate connects cyclone separator and sack cleaner successively by pipeline.
Further, on the pipeline between described discharge gate and cyclone separator, offer sewage draining exit.
The invention has the beneficial effects as follows, spray dryer of the present invention, novel, the tower body of employing jacket type structure, by passing into the temperature of air reduction tower body inwall in chuck, prevent that material from gluing wall, even if having the sticky wall of material also because of not high undergoing no deterioration of tower body inner wall temperature, the air that enters tower body preheating enters in hot air supply device again, after heating, material is dried, effectively reduce the overall operation energy consumption of equipment, reach the object of energy-saving and emission-reduction.
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Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the spray dryer of prior art.
In figure: 1. drying machine main body, 2. air blast, 3. steam heater, 4. pneumatic hammer.
Fig. 2 is the structural representation of spray dryer preferred embodiment of the present invention.
In figure: 1. drying machine tower body, tower body on 11., 12. times tower cones, 13. tower top chucks, 2. frame, 3. atomizer, 4. pressure fan, 5. shower nozzle, 51. flushing water pumps, 6. pneumatic hammer, 7. air blast, 8. steam heater, 9. cyclone separator, 10. sack cleaner.
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The specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present invention is only described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 2, a kind of spray dryer of the present invention, comprise the frame 2 of drying machine tower body 1 and support drying machine tower body 1, the top of drying machine tower body 1 is provided with air distributor and atomizer 3, described air distributor is by pipeline connection hot air supply device, described atomizer 3 is by pipeline connection material feedway, described drying machine tower body 1 comprises tower body 11 and lower tower cone 12, described upper tower body 11 and the hollow jacket type of lower tower cone 12 for being interconnected, on described lower tower cone 12, be provided with to the pressure fan 4 that blasts air in chuck, described upper tower body 11 is provided with tower top chuck 13, on described tower top chuck 13, have air outlet, described air outlet is communicated with the air inlet of hot air supply device by pipeline, described lower tower is bored 12 bottoms and is also provided with discharge gate.By adopting the tower body of jacket type structure, and pass into air in chuck, tower body inwall is lowered the temperature, effectively prevent that material from gluing wall, prevent that material is because of overheated and rotten.
Further, for the ease of washer-drier inwall, described upper tower body 11 inside are provided with multiple shower nozzles 5 that spray cleaning fluid to tower wall, and described shower nozzle 5 connects flushing water pump 51 by pipeline.When shutting down, can clean, reduced cleaning difficulty.
As preferably, described shower nozzle 5 is rotating sprinkler.When cleaning, rotating sprinkler can rotate, to avoid cleaning dead angle.
Further, for avoiding material to glue wall completely, described drying machine tower body 1 comprises and on tower body 11 and lower tower cone 12, is equipped with multiple pneumatic hammers 6 that knock tower body inwall when work.When dry, pneumatic hammer 6 knocks tower body inwall, and material is come off.
Concrete, described hot air supply device comprises air blast 7 and steam heater 8, the air inlet of described air blast 7 is by the air outlet of pipeline connection tower top chuck 13, the air outlet of air blast 7 is communicated with the air inlet of steam heater 8, and the air outlet of steam heater 8 is by pipeline connection air distributor.
Further, described discharge gate connects cyclone separator 9 and sack cleaner 10 successively by pipeline.
Further, on the pipeline between described discharge gate and cyclone separator 9, offer sewage draining exit.
In use, by pressure fan 4, in chuck, blast air, air flows in the chuck of upper tower body 11 and lower tower cone 12, finally at the air outlet of tower top chuck 13, discharge, when air flows in upper tower body 11 and lower tower cone 12, in the process of cooled inner wall, self also obtains preheating, and the air of preheating enters hot air supply device again, be that steam heater 8 heats, then enter being dried for material in drying machine tower body 1; Material sprays in drying machine tower body 1 after by atomizer 3 materializations, material is dried to solid state powder shape under hot wind action, solid state powder shape material is discharged through discharge gate, by cyclone separator 9, separate, solid state powder material is discharged through the discharge gate of cyclone separator 9 bottoms, and the air that is also mixed with a small amount of material enters atmosphere after sack cleaner 10 dedustings.
After being dried, open flushing water pump 51, by shower nozzle 5, cleaning fluid is sprayed to tower body inwall, clean, cleaning operation is simple and convenient.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to claim scope.
Claims (7)
1. a spray dryer, comprise the frame of drying machine tower body and support drying machine tower body, the top of drying machine main body is provided with air distributor and atomizer, described air distributor is by pipeline connection hot air supply device, described atomizer is by pipeline connection material feedway, it is characterized in that: described drying machine tower body comprises tower body and lower tower cone, described upper tower body and the hollow jacket type of lower tower cone for being interconnected, on described lower tower cone, be provided with to the pressure fan that blasts air in chuck, described upper tower body is provided with tower top chuck, on described tower top chuck, have air outlet, described air outlet is communicated with the air inlet of hot air supply device by pipeline, described lower tower cone bottom is also provided with discharge gate.
2. spray dryer as claimed in claim 1, is characterized in that: described upper tower body inside is provided with multiple shower nozzles that spray cleaning fluid to tower wall, and described shower nozzle connects flushing water pump by pipeline.
3. spray dryer as claimed in claim 2, is characterized in that: described shower nozzle is rotating sprinkler.
4. spray dryer as claimed in claim 1, is characterized in that: described drying machine tower body comprises and on tower body and lower tower cone, is equipped with multiple pneumatic hammers that knock tower body inwall when work.
5. spray dryer as claimed in claim 1, it is characterized in that: described hot air supply device comprises air blast and steam heater, the air inlet of described air blast is by the air outlet of pipeline connection tower top chuck, the air outlet of air blast is communicated with the air inlet of steam heater, and the air outlet of steam heater is by pipeline connection air distributor.
6. spray dryer as claimed in claim 1, is characterized in that: described discharge gate connects cyclone separator and sack cleaner successively by pipeline.
7. spray dryer as claimed in claim 6, is characterized in that: on the pipeline between described discharge gate and cyclone separator, offer sewage draining exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022174.8A CN103752025A (en) | 2014-01-17 | 2014-01-17 | Spray dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022174.8A CN103752025A (en) | 2014-01-17 | 2014-01-17 | Spray dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103752025A true CN103752025A (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410022174.8A Pending CN103752025A (en) | 2014-01-17 | 2014-01-17 | Spray dryer |
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| Country | Link |
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| CN (1) | CN103752025A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363230A (en) * | 2015-11-28 | 2016-03-02 | 南京威安新材料科技有限公司 | Spray drying apparatus for drying catalyst |
| CN106139624A (en) * | 2015-04-22 | 2016-11-23 | 厦门大学 | The magnanimity spray drying system of many arrays monodisperse particles and using method thereof |
| CN107823904A (en) * | 2017-12-05 | 2018-03-23 | 江西创迪科技有限公司 | A kind of spray dryer with cleaning device |
| CN112516611A (en) * | 2019-09-17 | 2021-03-19 | 江苏瑞强干燥工程有限公司 | Airflow spray type dryer |
-
2014
- 2014-01-17 CN CN201410022174.8A patent/CN103752025A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139624A (en) * | 2015-04-22 | 2016-11-23 | 厦门大学 | The magnanimity spray drying system of many arrays monodisperse particles and using method thereof |
| CN105363230A (en) * | 2015-11-28 | 2016-03-02 | 南京威安新材料科技有限公司 | Spray drying apparatus for drying catalyst |
| CN107823904A (en) * | 2017-12-05 | 2018-03-23 | 江西创迪科技有限公司 | A kind of spray dryer with cleaning device |
| CN112516611A (en) * | 2019-09-17 | 2021-03-19 | 江苏瑞强干燥工程有限公司 | Airflow spray type dryer |
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Application publication date: 20140430 |