CN201510860U - Spraying granulation and coating device for large-scale continuous multi-unit fluidized bed - Google Patents
Spraying granulation and coating device for large-scale continuous multi-unit fluidized bed Download PDFInfo
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- CN201510860U CN201510860U CN2009202320916U CN200920232091U CN201510860U CN 201510860 U CN201510860 U CN 201510860U CN 2009202320916 U CN2009202320916 U CN 2009202320916U CN 200920232091 U CN200920232091 U CN 200920232091U CN 201510860 U CN201510860 U CN 201510860U
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- fluidized bed
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Abstract
The utility model relates to a spraying granulation and coating device for a large-scale continuous multi-unit fluidized bed, which relates to the technical field of the spraying and granulating production of fluidized beds, and is characterized in that a feed port and a discharge port are respectively arranged on the two ends of a shell, and each fluidized unit in the shell is correspondingly and sequentially provided with an air inlet pipe, an air distributing chamber, an air distributing plate, a fluidized chamber and a separating chamber from bottom to top; a partition plate is vertically arranged between the fluidized chambers of the two adjacent fluidized units, and a space between the lower end of each partition plate and the air distributing plate is arranged; the upper part of the separating chamber of the fluidized chamber is connected with an air inlet of a cyclone separator, and the air outlet of the cyclone separator is connected with an exhaust device; and the air inlet of the cyclone separator deviates from the feed port in the horizontal direction. When the crystal seed in the fluidized bed implements the working process of spraying granulation and coating, the granulator can allow the produced large particles to be timely discharged, so that the residence time of the large particles in the fluidized bed is shortened, and the residence time of medium particles, small particles and fine powder are prolonged so as to truly achieve long-time continuous production.
Description
Technical field
The utility model relates to the fluidized bed for spraying, granulating production technical field, particularly the crystal seed in the fluid bed is implemented the technical field of the plant-scale equipment of continuous spray coating granulation.
Background technology
Utilize fluidization to carry out the technology and the device of slurry-spraying pelletizing, to obtain the Granulation Equipments of coating type coated granule product, reunion formula grain products, the granulation, dressing and the drying that are widely used in materials such as industry graininess, powdery such as chemical industry, food, feed, additive, heat sensitive material, the granulation of liquid material, drying.
There is a kind of patent No. to be: 200720043782.2 continous way multiple-unit fluidized bed for spraying, granulating and coating device, uprightly be provided with some dividing plates in the housing housing is divided into some unit fluidising chamber and plurality of separate chamber, housing top is provided with some cyclone separators, the air inlet of each cyclone separator is connected with the separation chamber is corresponding one by one, the air outlet of each cyclone separator is connected atmosphere, remove the most close charging aperture the pairing cyclone separator of first order unit fluidising chamber gather materials mouthful that to connect this unit fluidisation outdoor through closing air-valve and refeed line, the mouth that gathers materials of the cyclone separator of all the other each unit fluidising chamber correspondences all closes air-valve and refeed line is connected upper level unit fluidising chamber through corresponding.
Its weak point is: size particles is in the unordered fluidization campaign of fluid bed, certain locomotivity is arranged in the longitudinal direction: comprise a charging, a discharge method, aerofoil is in tilted layout, the wind hole is in tilted layout, the aerofoil stepped arrangement just allows size particles move simultaneously, the material that cyclone separator the is collected primary unit bed returning charge that makes progress, just that the spy is thin material to the importer to moving, small particles less than finished product grain size does not move to the charging aperture direction, above motive force is not enough to allow all bulky grains move to outlet, continuously behind the certain hour, through long-term coating and agglomeration granulation, there is a spot of bulky grain can't get out in the bed body, even forms the super large ball, cause local dead bed and produce not go down continuously, can only be about continuously about 15 days through practice examining.
The utility model content
The purpose of this utility model; be to propose a kind of large continuous fluidized bed for spraying, granulating device; the bulky grain that this granulation function produces when allowing the crystal seed in the fluid bed implement the course of work of spray coating granulation is in time discharged; bulky grain time of staying in fluid bed is shortened; in the prolongation, granule, the fine powder time of staying in device, really realize long serialization production.
The utility model is provided with charging aperture and discharging opening respectively on the two ends of housing, at least two group fluidisation unit are set in housing, each fluidisation unit is provided with corresponding blast pipe from bottom to top successively, separating chamber, split-wind plate, fluidising chamber and separation chamber, each fluidising chamber is provided with the mother liquor shower nozzle respectively, between the fluidising chamber of two groups of adjacent fluidisation unit dividing plate is set vertically, between the lower end of each dividing plate and the split-wind plate spacing is set, the top, separation chamber of fluidisation unit is connected with the air inlet of cyclone separator, the air outlet of described cyclone separator connects air extractor, and the air inlet of described cyclone separator is in the horizontal direction to described charging aperture arranged offset.
Owing to be provided with spacing between dividing plate lower end and the split-wind plate, can make that material has identical lateral velocity in each fluidisation unit by control; Because the separation chamber of all fluidisation unit is a logical chamber, can logical indoorly have identical horizontal wind speed to the charging aperture direction by being controlled at from discharging opening, make, small particles material direction charging aperture direction from the dividing plate flows, fluidising chamber's all particles of below direction discharging opening direction under the dividing plate flows.
The utility model by simple each fluidisation cell separators below material one-way flow and dividing plate on laterally wind action in the square tube chamber, form the directed flow of size particles, small particles is moved from trend charging aperture direction, quicken bulky grain flowing to the discharging opening place, thereby the bulky grain that produces when allowing crystal seed in the fluid bed implement the course of work of spray coating granulation is in time discharged, bulky grain time of staying in fluid bed is shortened, really realize long serialization.
In order to increase the movement velocity of bulky grain to the discharging opening direction, the particle of being convenient to after the moulding moves to discharging opening from charging aperture, also realize simultaneously partly finished particle and in, granule, fine powder move to the charging aperture direction, prolong the time of staying of these particles in device, form the horizontal wind speed of certain speed to facilitate in the separation chamber to the charging aperture direction, can adopt following measure respectively from discharging opening:
First kind is: described each fluidisation unit is provided with one group of cyclone separator respectively separately, the air outlet of each cyclone separator is attempted by on the same horizontal air-out house steward, the internal diameter of close discharging opening one end of described horizontal air-out house steward is greater than the internal diameter near charging aperture one end, horizontal air-out house steward's slight internal diameter end is a cecum, and horizontal air-out house steward's large diameter end is an openend.
Second kind is: described each fluidisation unit is provided with one group of cyclone separator respectively separately, and the air inlet diameter of the cyclone separator of close charging aperture is greater than the air inlet diameter of the cyclone separator of close discharging opening.
The third is: the air outlet of each cyclone separator is attempted by on the same horizontal air-out house steward, the internal diameter of close discharging opening one end of described horizontal air-out house steward is greater than the internal diameter near charging aperture one end, horizontal air-out house steward is a cecum at charging aperture one end, and horizontal air-out house steward is an openend at discharging opening one end.
More than three kinds also can intersect and mix to use, to realize better effect.
In addition, in order to prolong fine powder and the granule time of staying in device, allow fine powder and granule obtain more coating and opportunities for agglomeration, in order to make material after the fluidisation be in the gap location of dividing plate and split-wind plate, also in order further to ensure the one-way that finished product materials flows to discharging opening, simultaneously, the injection thing that also prevents the mother liquor shower nozzle blocks up on split-wind plate, each fluidising chamber described in the utility model is provided with the returning charge mouth, the mouth that gathers materials of each cyclone separator is by closing air-valve is connected the fluidising chamber of corresponding fluidisation unit with refeed line returning charge mouth, described each returning charge mouth is lower than corresponding mother liquor nozzle layout of sprinkler, described each mother liquor shower nozzle is 50～150mm with the vertical range of corresponding each returning charge mouth, the inner of described each mother liquor shower nozzle is tilting towards the discharging opening direction, the angle of described each mother liquor shower nozzle and place housing is 70～90 °, and the vertical range of each mother liquor shower nozzle and split-wind plate is 100～400mm.
In order to increase heat utilization efficiency of the present utility model, each the fluidising chamber top in housing is provided with internal heater, and the vertical range of the lower end of described mother liquor shower nozzle and internal heater is 400～700mm, is that the injection thing that prevents the mother liquor shower nozzle is stuck with paste in the internal heater surface.
For the fine powder that cyclone separator is collected moves to the charging aperture direction, prolong the fine powder time of staying, quickening bulky grain moves to the discharging opening direction, the utility model refeed line of the cyclone separator of the fluidisation unit of close charging aperture connects the returning charge mouth of fluidisation at the corresponding levels unit, and the refeed line of the cyclone separator of all the other each unit fluidising chamber is connected in the returning charge mouth near the upper level unit fluidising chamber of charging aperture.
The vertical range of each returning charge mouth described in the utility model and split-wind plate is 50～200mm.Purpose is with fluidising air velocity control within the specific limits, prevents to cause dead bed.
Description of drawings
Fig. 1 is a plurality of fluidisation unit form of a utility model front schematic view.
Fig. 2 is the utility model fluidisation unit side schematic view.
Fig. 3 is spray of the utility model mother liquor and returning charge mouth plane relative position schematic diagram.
Fig. 4 is the schematic diagram of the utility model cyclone separator air inlet to the charging aperture skew.
1 is blast pipe among the figure, and 2 is separating chamber, and 3 is the mother liquor shower nozzle, and 4 are the returning charge mouth, 5 is fluidising chamber, and 6 is the separation chamber, and 7 is split-wind plate, and 8 is rotary separator, 9 for closing air-valve, and 10 is refeed line, and 11 is internal heater, and 12 is air intake adjusting device, 13 is horizontal air-out house steward, and 14 is the cyclone separator air inlet, and 15 is dividing plate, 16 is the gap, and 17 is pneumatic separator, and 18 is the temperature or the pressure sensor of internal heater, 19 is charging aperture, and 20 is discharging opening, and 21 is housing.
The specific embodiment
Shown in Fig. 1,2,4, this example is provided with six groups of fluidisation unit in housing 21, and each is organized the fluidisation unit and is respectively equipped with corresponding blast pipe 1, separating chamber 2, split-wind plate 7, fluidising chamber 5 and separation chamber 6 from bottom to top successively, and each fluidising chamber 5 is connected with mother liquor shower nozzle 3 respectively.Between the fluidising chamber of two groups of adjacent fluidisation unit dividing plate 15 is set vertically, is provided with the gap 16 of negotiable material between the lower end of each dividing plate 15 and the split-wind plate 7, make the separation chamber 6 of each fluidisation unit form a nonseptate logical chamber.
Each fluidising chamber 5 is provided with returning charge mouth 4, the mouth that gathers materials of each cyclone separator 8 is through closing air-valve 9 is connected the fluidising chamber 5 of corresponding fluidisation unit with refeed line 10 returning charge mouth 4, returning charge mouth 4 is lower than corresponding mother liquor shower nozzle 3 and arranges that mother liquor shower nozzle 3 is 50～150mm with the vertical range of corresponding returning charge mouth 4.Each mother liquor shower nozzle 3 is 100～400mm with the vertical range of split-wind plate 7.
As shown in Figure 3, the inner of mother liquor shower nozzle 3 is tilting towards discharging opening 20 directions, and each mother liquor shower nozzle 3 is 70～90 degree with the angle α of place housing 21.
Be provided with internal heater 11 between each fluidising chamber 5 in housing 21 and the separation chamber 6, internal heater 11 can be coil exchanger or plate type heat exchanger.The coil pipe of coil exchanger is a homogeneous tube, does not weld, and its effect is when preventing work, leaks in fluidising chamber.Characteristic according to different material, one best beeline is arranged between the coil exchanger tube and tube, and its effect is the heat that heat exchange provides at utmost increasing, and increases the heat utilization efficiency of whole equipment, guarantee that simultaneously in the course of work, material is not built bridge on interior heat(ing) coil.Optimum level distance between the tube and tube is 4～6 times of caliber, and the best vertical range between the tube and tube is 2～3 times of caliber.The interior heat exchanger 11 thermal source amounts of providing need control, one pressure sensor or a temperature sensor, automatic regulating valve can be set, according to temperature signal in the coil pipe or steam pressure signal, control software by the advanced person and regulate the thermal source supply valve automatically, realize control and safe operation automatically.
Each mother liquor shower nozzle 3 is than the low 400～700mm in the lower end of internal heater 11.
The refeed line 10 of the cyclone separator 8 of the fluidisation unit of the most close charging aperture 19 connects the returning charge mouth 4 of fluidisation at the corresponding levels unit, and the refeed line 10 of the cyclone separator 8 of all the other each unit fluidising chamber is connected in the returning charge mouth 4 near the upper level unit fluidising chamber of charging aperture.Each returning charge mouth 4 is 50～200mm with the vertical range of split-wind plate 7.
Each cyclone separator air inlet 14 moves layout to charging aperture 19 1 lateral deviations in the horizontal direction, as shown in Figure 4.
Operation principle:
During work; granule materials as crystal seed enters in the fluid bed from charging aperture 19; simultaneously; supply with the thermal current of certain flow rate from blast pipe 1; thermal current passes split-wind plate 7 after entering separating chamber 2; after material is blown by thermal current; the unit fluidisation is indoor seethes at each; at this moment; from the atomizing mother liquor of mother liquor shower nozzle 3 ejection attached to each seed surface; blow down constantly oven dry at thermal current; seed particles is constantly grown and is become the also constantly increase of big own wt simultaneously; until becoming satisfactory shaped granule; in; little; fine grained can be blown to separation chamber 6; in the separation chamber that communicates under the cross-flow effect; in blowing afloat in the fluidising chamber 6; granule can move to charging aperture 19 directions; sedimentation in the separation chamber 6 that communicates; fall into last fluidisation unit; last fluidisation supplies of unit layer height can increase; blow at bed of material differential pressure action with at thermal current; the jet of tilting mother liquor shower nozzle 3; under the guiding of the split-wind plate 7 that tilts; molding materials moves to discharging opening 20 from charging aperture 19 gradually along gap 16 between dividing plate 15 and the split-wind plate 7; granule materials can be to grow up while moving; the blowing of thermal current make the less material of particle in separation chamber 6 with oarse-grained feed separation; small particles material rises with thermal current and enters in the cyclone separator 8; after cyclone separator 8 separates; gas enters atmosphere; small particles material is from enter the fluidising chamber 6 of upper level fluidisation unit or this chamber near in the returning charge mouth 4 of charging aperture 19 through closing air-valve 9 and refeed line 10 gathering materials mouthful of cyclone separator 8; by the fluerics of nearest mother liquor shower nozzle 3, grown up by spraying once more.Granule materials after the moulding leaves fluid bed from discharging opening 20, under the pneumatic separator effect that is provided with above the discharging opening 20, the material that weight is lighter is blown by pneumatic separator and once more in afterbody separation chamber 6 falls into the fluidising chamber 6 of corresponding fluidisation unit, and once more by spraying, dressing and oven dry, the homogeneous of the granule materials that comes out from discharging opening 20 is neat.
Compared with prior art, because in, small particles material is constantly separated simultaneously constantly moves automatically to charging aperture 19, little, fine grained is constantly separated sprays mother liquor once more, short its becomes big, bulky grain moves to the discharging opening direction by the dividing plate 15 and the gap 16 of split-wind plate 7, form to prolong middle or small, fine grained in the time of staying of device, the bulky grain that produces when allowing crystal seed in the fluid bed implement the course of work of spray coating granulation is in time discharged, and really realizes long serialization.
The utility model is not limited to the foregoing description, and mother liquor shower nozzle 3 can stretch in the fluidising chamber 6 of corresponding fluidisation unit from fluidising chamber 6 tops of each fluidisation unit.
Claims (9)
1. large continuous multiple-unit fluidized bed for spraying, granulating and coating device, comprise housing, charging aperture and discharging opening are set respectively on the two ends of housing, at least two group fluidisation unit are set in housing, each fluidisation unit is provided with corresponding blast pipe from bottom to top successively, separating chamber, split-wind plate, fluidising chamber and separation chamber, each fluidising chamber is provided with the mother liquor shower nozzle respectively, between the fluidising chamber of two groups of adjacent fluidisation unit dividing plate is set vertically, between the lower end of each dividing plate and the split-wind plate spacing is set, the top, separation chamber of fluidisation unit is connected with the air inlet of cyclone separator, the air outlet of described cyclone separator connects air extractor, and it is characterized in that: the air inlet of described cyclone separator is in the horizontal direction to described charging aperture arranged offset.
2. according to the described large continuous multiple-unit fluidized bed for spraying, granulating and coating device of claim 1, it is characterized in that: described each fluidisation unit is provided with one group of cyclone separator respectively separately, the air outlet of each cyclone separator is attempted by on the same horizontal air-out house steward, the internal diameter of close discharging opening one end of described horizontal air-out house steward is greater than the internal diameter near charging aperture one end, horizontal air-out house steward's slight internal diameter end is a cecum, and horizontal air-out house steward's large diameter end is an openend.
3. according to the described large continuous multiple-unit fluidized bed for spraying, granulating and coating device of claim 1, it is characterized in that: described each fluidisation unit is provided with one group of cyclone separator respectively separately, and the air inlet diameter of the cyclone separator of close charging aperture is greater than the air inlet diameter of the cyclone separator of close discharging opening.
4. according to the described large continuous multiple-unit fluidized bed for spraying, granulating and coating device of claim 3, it is characterized in that: the air outlet of each cyclone separator is attempted by on the same horizontal air-out house steward, the internal diameter of close discharging opening one end of described horizontal air-out house steward is greater than the internal diameter near charging aperture one end, horizontal air-out house steward is a cecum at charging aperture one end, and horizontal air-out house steward is an openend at discharging opening one end.
5. according to claim 1 or 2 or 3 or 4 described large continuous multiple-unit fluidized bed for spraying, granulating and coating devices, it is characterized in that: described each fluidising chamber is provided with the returning charge mouth, the mouth that gathers materials of each cyclone separator is by closing air-valve is connected the fluidising chamber of corresponding fluidisation unit with refeed line returning charge mouth, described each returning charge mouth is lower than corresponding mother liquor nozzle layout of sprinkler, described each mother liquor shower nozzle is 50～150mm with the vertical range of corresponding each returning charge mouth, the inner of described each mother liquor shower nozzle is tilting towards the discharging opening direction, the angle of described each mother liquor shower nozzle and place housing is 70～90 °, and the vertical range of each mother liquor shower nozzle and split-wind plate is 100～400mm.
6. according to claim 1 or 2 or 3 or 4 described large continuous multiple-unit fluidized bed for spraying, granulating and coating devices, it is characterized in that: each the fluidising chamber top in housing is provided with internal heater, and the vertical range of the lower end of described mother liquor shower nozzle and internal heater is 400～700mm.
7. according to the described large continuous multiple-unit fluidized bed for spraying, granulating and coating device of claim 6, it is characterized in that: described internal heater is coil exchanger or plate type heat exchanger.
8. according to the described large continuous multiple-unit fluidized bed for spraying, granulating and coating device of claim 2, it is characterized in that: the refeed line of the cyclone separator of the fluidisation unit of close charging aperture connects the returning charge mouth of fluidisation at the corresponding levels unit, and the refeed line of the cyclone separator of all the other each unit fluidising chamber is connected in the returning charge mouth near the upper level unit fluidising chamber of charging aperture.
9. according to claim 2 or 8 described large continuous multiple-unit fluidized bed for spraying, granulating and coating devices, it is characterized in that: the vertical range of described each returning charge mouth and split-wind plate is 50～200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202320916U CN201510860U (en) | 2009-09-22 | 2009-09-22 | Spraying granulation and coating device for large-scale continuous multi-unit fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202320916U CN201510860U (en) | 2009-09-22 | 2009-09-22 | Spraying granulation and coating device for large-scale continuous multi-unit fluidized bed |
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| CN201510860U true CN201510860U (en) | 2010-06-23 |
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|---|---|---|---|
| CN2009202320916U Expired - Lifetime CN201510860U (en) | 2009-09-22 | 2009-09-22 | Spraying granulation and coating device for large-scale continuous multi-unit fluidized bed |
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| CN (1) | CN201510860U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091566A (en) * | 2010-12-17 | 2011-06-15 | 常州市鹏多干燥设备有限公司 | One-step granulating and drying equipment with fluidized bed |
| CN113578193A (en) * | 2021-08-24 | 2021-11-02 | 云南弘祥化工有限公司 | Novel granulator |
-
2009
- 2009-09-22 CN CN2009202320916U patent/CN201510860U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091566A (en) * | 2010-12-17 | 2011-06-15 | 常州市鹏多干燥设备有限公司 | One-step granulating and drying equipment with fluidized bed |
| CN113578193A (en) * | 2021-08-24 | 2021-11-02 | 云南弘祥化工有限公司 | Novel granulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yizheng daily drying equipment Co., Ltd. Assignor: Wang Xinyue Contract record no.: 2012320001009 Denomination of utility model: Spraying granulation and coating device for large-scale continuous multi-unit fluidized bed Granted publication date: 20100623 License type: Exclusive License Record date: 20121122 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yizheng daily drying equipment Co., Ltd. Assignor: Wang Xinyue Contract record no.: 2012320001009 Denomination of utility model: Spraying granulation and coating device for large-scale continuous multi-unit fluidized bed Granted publication date: 20100623 License type: Exclusive License Record date: 20121122 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |
|
| CX01 | Expiry of patent term |