CN206526529U - A kind of Centrafugal spray drying tower - Google Patents
A kind of Centrafugal spray drying tower Download PDFInfo
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- CN206526529U CN206526529U CN201720063265.5U CN201720063265U CN206526529U CN 206526529 U CN206526529 U CN 206526529U CN 201720063265 U CN201720063265 U CN 201720063265U CN 206526529 U CN206526529 U CN 206526529U
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- spray drying
- drying tower
- hothouse
- tower
- centrafugal spray
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Abstract
A kind of Centrafugal spray drying tower, from top to bottom include air intake section, centrifugal atomizer and hothouse, described air intake section is provided with scroll casing shape air channel and gas distributor, described centrifugal atomizer is constituted by feed pipe and by the atomizing disk that motor drives, taper internals are set in described hothouse, and described hothouse bottom from top to bottom sets gas vent and material outlet.The utility model provide Centrafugal spray drying tower is simple in construction, hothouse volume using fully, cost of investment it is low, prepared suitable for micro-spherical catalyst, flow field in tower is uniform, material is uniformly dried, with particle good sphericity, can avoid or reduce material adhesion the characteristics of.
Description
Technical field
The utility model is related to a kind of Centrafugal spray drying tower, is particularly suitable for use in the preparation of petrochemical industry catalyst
And other spray drying preparation process using spheric granules as product.
Background technology
At present, spray drying tower applies quite varied in fields such as pharmacy, food, petrochemical industries.Conventional spray drying
The equipment body of technique is spray drying tower, and conventional atomizer drying mode is that the same of hot blast is being sent into tower body
When, by liquid material to be dried, from tower bodies top, by centrifugal atomizer, rotation is sprayed into hothouse at a high speed, makes liquid object
Material forms droplet.The droplet carries out heat exchange in the epimere of tower body with hot blast, and moisture therein is evaporated, remaining powder
Shape material is collected after falling in the conical section of tower body lower part, then the main discharge hole for discharge by bottom.It is existing
There is spray drying tower to be typically provided two outlets, side exit is mainly gaseous phase outlet, and bottom is material outlet.Actual production
In, side air outlet design form easily draws air into side, so that listing airflow pattern is produced, to airflow influence
It is larger, so as to have influence on the drying process of material.Flow Field Distribution is uneven will to cause high temperature gas flow thermo parameters method uneven,
So that material particles rate of drying, drying time are inconsistent.If the material outside of high-temperature region forms duricrust and internal presence
Gas, easy explosion produces special-shaped particle and causes fine powder to increase；Insufficient or different degree of drying material is dried easily to glue
Connect together, form caking and viscous wall problem, ultimately result in spray dried products sphericity bad；Particle size distribution scope compared with
Width etc..
CN203853015U discloses a kind of spray drying tower, including interconnected smoke inlet section and cylinder, in institute
State and several baffle plates are vertically provided with the inwall of cylinder.The baffle plate is evenly arranged on the inwall of cylinder, is led to
Spray drying tower inside smoke Flow Field Distribution unevenness can be reduced by crossing the setting of the baffle plate, improve turbulivity, and then improve
Spray drying tower so that power consumption, but is not used to produce grain products to the removal efficiency of sour gas, reduction absorbent consumption
Spray drying tower.
CN201813815U discloses a kind of anti-caking equipment for spray drying, including spray drying tower and gas injection dress
Put, the lower airways connection of gas injection apparatus and spray drying tower, gas injection apparatus can be connected to inverted cone tank body
On locate apart from the height of discharging opening 1/3rd, the utility model is simple in construction, can be anti-while being spray-dried to material
Only material lumps, and improves the discharging speed of material.It may lump effective to material to a certain degree, but can not solve different
The problems such as shape, fine powder increase.
CN104549809A discloses a kind of nozzle, including：Set on nozzle body with cavity, the nozzle body
There are nozzle entrance, spray orifice.A kind of spray dryer is also disclosed, the spray dryer includes：Sprayer unit and drying unit, its
In, the nozzle of the sprayer unit is nozzle of the present invention.The atomizing effect when nozzle that invention is provided is used to be spray-dried
It is good, when using it for spray drying and preparing catalytic cracking catalyst, prepared catalytic cracking catalyst good sphericity, but necessarily
Degree still suffers from the problems such as abnormity, fine powder increase.
The content of the invention
The technical problems to be solved in the utility model is that there is provided one kind centrifugation feed type spraying on the basis of existing technology
Drying tower, solve above-mentioned Flow Field Distribution it is uneven caused by spray dried products sphericity is bad, particle easy adhesion the problem of.
Centrafugal spray drying tower of the present utility model, from top to bottom including air intake section, centrifugal atomizer and drying
Room, described gas distributor of the air intake section provided with scroll casing shape air channel and scroll casing shape ducting outlet end, described centrifugation mist
Change device to constitute by feed pipe and by the atomizing disk that motor drives, taper internals, described drying are set in described hothouse
Room bottom from top to bottom sets gas vent and material outlet.
The Centrafugal spray drying tower that the utility model is provided has the beneficial effect that：
The utility model provide Centrafugal spray drying tower is simple in construction, hothouse volume using fully, cost of investment
It is low, it is applied widely, available for techniques such as catalyst preparations.Taper is provided with the hothouse of described Centrafugal spray drying tower
Internals, can be uniformly distributed high-temperature gas flow field, and material can be reduced or avoided, and due to drying, too fast or temperature is too high to send out particle
The problems such as giving birth to explosion and abnormity and fine powder occur, is conducive to improving product sphericity；Secondly, the design of taper internals is not increasing
Plus in the case of tower height, residence time of the material in tower is extended, effectively using space in tower dry materials can be made more to fill
Point；Again, distribution of particles is more uniform and concentrates on the center of tower, and its running orbit, residence time and evaporation rate tend to
Unanimously, it is effectively reduced the wall sticking phenomenon occurred by the different adhesions of pellet moisture levels or close wall.
Brief description of the drawings
Accompanying drawing 1 is a kind of embodiment schematic diagram of Centrafugal spray drying tower of the present utility model.
Accompanying drawing 2 is second of embodiment schematic diagram of Centrafugal spray drying tower of the present utility model.
Accompanying drawing 3 is taper internals top view of the present utility model.
Description of symbols：
1st, slurry inlet；2nd, motor, 3, air intake；4th, atomizing disk；5th, hothouse；6th, taper internals；7th, gas vent；
8th, material outlet；9th, conical surface perforate；10th, bottom is bored.
Embodiment
The utility model provide Centrafugal spray drying tower, from top to bottom including air intake section, centrifugal atomizer and
Hothouse, described gas distributor of the air intake section provided with scroll casing shape air channel and scroll casing shape ducting outlet, described centrifugation
Atomizer is constituted by feed pipe and by the atomizing disk that motor drives, and taper internals are set in described hothouse, and described is dry
Dry room bottom from top to bottom sets gas vent and material outlet.
" top " mentioned in specification refers to container from top to bottom 0%-50% scope, and described " top " refers to hold
Device from top to bottom 0%-5% scope, described bottom refers to container from top to bottom 50%-100% scope, described bottom
Portion refers to container from top to bottom 95%-100% scope.
Preferably, described scroll casing shape air channel and gas distributor are arranged at spray drying top of tower.It is further preferred that described
The material outlet of centrifugal atomizer is 1 away from bottom of towe ratio of distances constant with it away from tower top distance： (5-20).
Preferably, described hothouse top is direct tube section, and bottom is up big and down small conical section.It is further preferred that described
The ratio of height to diameter of hothouse direct tube section is：(1-10)：1.
Preferably, described taper internals are to be provided with hole in up big and down small, bottom mesopore taper, tapered wall.
Preferably, described taper internals are located at described hothouse from top to bottom 50%-100% scope.
Preferably, described hothouse lower end refers to that hothouse from top to bottom sets gas to go out in the range of 70%-90%
Mouthful, described material outlet is opened on hothouse bottom.
A kind of embodiment of Centrafugal spray drying tower of the present utility model, it is preferable that described gas vent is water
Material outlet section middle position is stretched into flat round pipe, one end, and downwards, the other end stretches out Centrafugal spray drying tower tower to mouth of pipe tangent plane
Outside.
The another embodiment of Centrafugal spray drying tower of the present utility model, it is preferable that described gas vent is set
Spray drying tower side wall is placed in, more than two gas vents are symmetrical arranged.
Centrafugal spray drying tower of the present utility model is applied to the preparation of the micro-spherical catalyst of petrochemical industry, quilt
The material liquid of heating is entered in atomizing disk by feed pipe, and the material outlet through atomizing disk is sprayed onto in hothouse, and hot-air is from upper
Portion enter, through scroll casing shape air channel and gas distributor it is uniform after, can preferably with atomizing disk centrifuge spray drop be in contact.With
Afterwards, air-flow entrainment expects that taper internals are passed through in the middle and lower part of tower.Because taper internals are provided with circular hole, hot blast is after taper internals
It is uniform again, so that the influence of gas phase bias current in tower may be caused by eliminating side air inducing gaseous phase outlet, in spray drying tower
Form a relatively uniform Flow Field Distribution state.Meanwhile, taper internals are provided with hole, and also area is closed, partial material
It may be deposited on above, then be flowed down at lateral opening hole and bottom opening, the residence time that can so extend material is allowed to
Dry abundant.Last gas phase carries a small amount of powder and flowed out from gas vent, and material is discharged after the collection of hothouse conical section.
The embodiment to the utility model Centrafugal spray drying tower is described below in conjunction with the accompanying drawings.
A kind of embodiment for the Centrafugal spray drying tower that accompanying drawing 1 provides for the utility model, as shown in Figure 1, institute
The Centrafugal spray drying tower stated includes setting taper in air intake section, centrifugal atomizer and hothouse, described hothouse 5
Internals 6, the described lower end of hothouse 5 from top to bottom sets gas vent 7 and material outlet 8.
Hot blast enters scroll casing shape air channel and gas distributor through air intake 3, and slurry enters centrifugation mist by slurry inlet 1
Change device, the atomizing disk 4 driven by motor 2, atomizing disk surface extension be film and with ever-increasing speed to plate edge
Motion, liquid is atomized when leaving plate edge.The drop that equally distributed hot blast preferably can spray with atomizer is in contact.With
Afterwards, air-flow and material are downward parallel, pass through taper internals 6 to the middle and lower part of tower.Taper internals top view as shown in Figure 3, because
Conical surface perforate 9 is provided with for taper internals 6, it is bored the middle part of bottom 10 and is provided with hole, and hot blast is evenly distributed again after taper internals 6,
It may cause the influence of gas phase bias current in tower so as to eliminate side air inducing gaseous phase outlet, meanwhile, taper internals have certain perforate
Rate, also area are closed, and partial material may be deposited on above, then from the tapping stream at conical surface perforate 9 and cone bottom 10
Under, into after the material deposition of the conical section of hothouse 5, because dry indoor temperature is higher, therefore it can continue to be dried, so
The residence time that material can be extended is allowed to dry fully.Thermal current is discharged from the conical section of hothouse 5 through gas vent 7, gas
Outlet 7 is tangentially open and the mouth of pipe is downward, can effectively reduce the soakage of fine powder.Material outlet 8 is located at hothouse conical section
Lower section is used for discharge.
The another embodiment for the Centrafugal spray drying tower that accompanying drawing 2 provides for the utility model, gaseous phase outlet is used
Two or more exports symmetrically arranged form.
Above-described embodiment is only for illustration of the utility model, is not limitation of the utility model.This area it is common
Technical staff can also make a variety of changes and deform, therefore on the premise of spirit and scope of the present utility model are not departed from
Technical scheme used should also belong to category of the present utility model.
Claims (10)
1. a kind of Centrafugal spray drying tower, it is characterised in that from top to bottom including air intake section, centrifugal atomizer and drying
Room, described gas distributor of the air intake section provided with scroll casing shape air channel and scroll casing shape ducting outlet end, described centrifugation mist
Change device to constitute by feed pipe and by the atomizing disk that motor drives, taper internals, described drying are set in described hothouse
Room bottom from top to bottom sets gas vent and material outlet.
2. according to the Centrafugal spray drying tower described in claim 1, it is characterised in that described scroll casing shape air channel and gas point
Cloth device is arranged at spray drying tower top.
3. according to the Centrafugal spray drying tower described in claim 2, the outlet of described centrifugal atomizer away from tower top distance with
It is 1 away from bottom of towe ratio of distances constant：(5-20).
4. according to the Centrafugal spray drying tower described in claim 3, it is characterised in that described hothouse top is straight tube
Section, bottom is up big and down small conical section.
5. according to the Centrafugal spray drying tower described in claim 4, it is characterised in that the Gao Jing of described hothouse direct tube section
Than for (1-10)：1.
6. according to the Centrafugal spray drying tower described in claim 1, it is characterised in that described taper internals for it is upper it is big under
The percent opening being provided with small, bottom opening taper, the conical surface on hole, the conical surface is 10%-90%.
7. according to the Centrafugal spray drying tower described in claim 3, it is characterised in that described taper internals are located at described
Hothouse from top to bottom 50%-100% scope.
8. according to any described Centrafugal spray drying tower in claim 1-7, it is characterised in that described hothouse by
Up to descend in the range of 70%-90% and gas vent is set, described material outlet is opened on hothouse bottom.
9. according to the Centrafugal spray drying tower described in claim 8, it is characterised in that described gas vent is horizontal circle
Material outlet section middle position is stretched into pipe, one end, and downwards, the other end stretches out outside Centrafugal spray drying tower tower mouth of pipe tangent plane.
10. according to the Centrafugal spray drying tower described in claim 8, it is characterised in that described gas vent is arranged at spray
Mist dries tower side wall, and more than two gas vents are symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720063265.5U CN206526529U (en) | 2017-01-18 | 2017-01-18 | A kind of Centrafugal spray drying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720063265.5U CN206526529U (en) | 2017-01-18 | 2017-01-18 | A kind of Centrafugal spray drying tower |
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| Publication Number | Publication Date |
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| CN206526529U true CN206526529U (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720063265.5U Active CN206526529U (en) | 2017-01-18 | 2017-01-18 | A kind of Centrafugal spray drying tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289697A (en) * | 2018-08-30 | 2019-02-01 | 浙江工业大学 | A kind of spraying-starch bed Granulation Equipments |
| WO2023051502A1 (en) * | 2021-09-28 | 2023-04-06 | 宁夏中化锂电池材料有限公司 | Manufacturing method, apparatus and system for positive electrode material |
-
2017
- 2017-01-18 CN CN201720063265.5U patent/CN206526529U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289697A (en) * | 2018-08-30 | 2019-02-01 | 浙江工业大学 | A kind of spraying-starch bed Granulation Equipments |
| CN109289697B (en) * | 2018-08-30 | 2021-02-02 | 浙江工业大学 | Spraying-starch bed granulation equipment |
| WO2023051502A1 (en) * | 2021-09-28 | 2023-04-06 | 宁夏中化锂电池材料有限公司 | Manufacturing method, apparatus and system for positive electrode material |
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