CN201417070Y - Slurry/liquid material wetness decompression reboiling spraying drying device - Google Patents
Slurry/liquid material wetness decompression reboiling spraying drying device Download PDFInfo
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- CN201417070Y CN201417070Y CN2009200266230U CN200920026623U CN201417070Y CN 201417070 Y CN201417070 Y CN 201417070Y CN 2009200266230 U CN2009200266230 U CN 2009200266230U CN 200920026623 U CN200920026623 U CN 200920026623U CN 201417070 Y CN201417070 Y CN 201417070Y
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Abstract
A slurry/liquid material wetness decompression reboiling spraying drying device belongs to the field of drying devices, comprises a slurry storage groove, a slurry pump and a drying tower, and is characterized in that the slurry pump (2) is connected with the slurry storage groove (1), a heating furnace (3) and a spraying head (5) of the heating furnace (3) through processing pipelines, and the spraying head (5) is installed in a tower cavity of the drying tower (7). The energy consumption of compression drying by directly steaming material wetness is lower than that of hot-air drying by indirectly steaming material wetness, and the discharge amount of waste is low. Simultaneously, the slurry/liquid material wetness decompression reboiling spraying drying device has the advantages of simple structure and high efficiency, and can save more than 30% energy.
Description
Technical field
The wet branch decompression of the slurry/aqueous material spray-drying installation that seethes with excitement again belongs to drying device field.The dehumidification drying that is used for mud, chemical industry solutions, outstanding solution, turbid solution.
Background technology
Existing spray-drying installation is made up of slurry storage tank, mashing pump, sprayer unit, hot-blast stove and drying tower.The slurry storage tank links to each other with mashing pump, and the fog-spray nozzle of mashing pump is installed in the tower chamber, and bottom, dry Tata chamber is a powder outlet, and the hot flue gas of hot-blast stove or air are transported to by pipeline in the tower chamber of drying tower, and waste gas is discharged by blower fan from the bottom, tower chamber of drying tower.Its operation principle is: in drying tower normal temperature slurry/aqueous material to be dried is sprayed into tiny drop in hot blast (flue gas or the air of heat).Be evaporated and solid formation is dried to and is powdery or granular product wet the branch in the droplets fall process.The dry energy is from hot-blast stove.The hot flue gas (or hot blast) that hot-blast stove produces is sent in the tower chamber by pipeline.Pasty material in the slurry storage tank is delivered to sprayer unit by mashing pump pressure at normal temperatures and is in the vaporific tower chamber that is sprayed onto drying tower, contact afterwards by the dehumidification drying with hot flue gas.The essential characteristic of prior art is: the atomizing of slurry normal temperature, and the hot blast dehumidification, so this spray-drying installation power consumption is high.
The utility model content
The technical problems to be solved in the utility model is: overcome the problem that prior art exists, the wet branch decompression of a kind of slurry/aqueous material simple in structure, efficient, energy savings the spray-drying installation that seethes with excitement again is provided.
The technical scheme that its technical problem that solves the utility model adopts is: the wet branch decompression of this slurry/aqueous material spray-drying installation that seethes with excitement again, comprise slurry storage tank, mashing pump and drying tower, it is characterized in that: slurry storage tank and mashing pump, mashing pump all links to each other by process pipe with fog-spray nozzle with heating furnace and heating furnace, and fog-spray nozzle is installed in the tower chamber of drying tower.Normal temperature slurry/aqueous material is heated to it more than wet normal boiling point that divides after a certain temperature through heating furnace in the pipeline of pump pressure lower edge, arrive fog-spray nozzle by spray pipe, is vaporific by fog-spray nozzle and is sprayed in the dry Tata chamber that is normal pressure.Owing to lose pressure, its wet ebullition, gasification that divides is immediately again realized the preliminary dehumidification of material; Again through the moisture absorption of hot blast and realize the complete dehumidification of material.
Heating furnace adopts DC system panel tubulose boiler.
Spiral coil in the DC system panel tubulose boiler is that internal layer spiral coil and outer spiral coil are two-layer.
Spiral coil in the DC system panel tubulose boiler is three layers.
Spiral coil in the DC system panel tubulose boiler is an individual layer.
With individual layer or effect two-layer or multilayer DC system panel tubulose boiler be, realize that the wet temperature of dividing of material rises to a certain temperature more than the normal boiling point when vaporific being about to be sprayed into, be about to material to be dried and change into the wet boiling point that divides of super material by the normal temperature spraying of prior art and spray.
Heating furnace is the peculiar equipment of this drying device.This heating furnace is used as starching/the stream storage passage of aqueous material and the direct current cooker of heat exchange working face for adopting the individual layer be arranged in the burner hearth or the two-layer or coil-like canister of multi-layer helical, and is divided into solid fuel type and liquid, gaseous fuel type according to consumption fuel difference.The portion of energy that this heating furnace is finished the slurry/aqueous material to be dried of fuel thermal energy in stream is stored in spiral coil shifts, and makes temperature of charge rise to a certain temperature more than the wet normal boiling point that divides of its material by normal temperature; Flue gas after the part heat release (or being converted to hot-air) is then discharged the back from the exhanst gas outlet of heating furnace, and the bottom enters that the tower chamber is inner continues heat release and finish the wet absorption that divides of residual material along conduit from dry Tata chamber.
The process pipe of this device is the basic procedure that guarantees this system's operate as normal.Its pressure current, heating power stream, material flow, gas stream etc. are all and satisfy its work requirements and set.
Operation principle:
The utility model spray-drying installation reduces at bearing pressure by the vaporization heat energy in being stored in that material is wet and dividing mainly that the back material is wet to divide multiple boiling vaporization to become gaseous state by liquid state, makes material to be dried realize liquid, solid phase initial gross separation.Make by the energy in the hot blast that infeeds by bottom, dry Tata chamber again that residual material is wet to divide vaporization wet the branch and remain in material on the solid phase powder after separating, thereby realize that liquid, solid phase separate the dehumidification of finishing material to be dried fully.Cause is mainly by being stored in the vaporization heat energy dehumidification in the wet branch of material, so power consumption is lower.
Compared with prior art, the wet branch decompression of the utility model slurry/aqueous material beneficial effect that spray-drying installation had that seethes with excitement again is:
Compare with the hot flue gas of generation of tradition employing or the hot-blast stove of hot-air, seethe with excitement the again drying means of spray-drying installation of wet the branchs decompression of this slurry/aqueous material is both to have produced hot flue gas or hot-air, material to be dried is heated be warming up to the difunctional disposable direct current helical disk tubulose boiler of a certain temperature more than the wet normal boiling point that divides of material.Material is wet to divide direct boiling that liquid is carried out concentrate drying owing to adopt, and power consumption is far below the wet indirect vaporizing heated-air drying of dividing of traditional material; The waste discharge amount is low.Have simultaneously simple in structure, efficient is high, energy savings 30% is with first-class advantage.
The difference of two kinds of spray drying processes
Temperature parameter difference when (1) atomizing
The drying means that the conventionally spray-dried device is realized is that material to be dried is a normal temperature when atomizing.
This decompression wet a certain temperature more than the normal boiling point that is warming up to material to be dried of when atomizing, then being heated of dividing of material in the material to be dried of drying means of spray-drying installation of boiling again.
(2) drying mechanism difference.
The drying means of conventionally spray-dried device vaporizes the material in the material to be dried wet the branch by the energy that is stored in the hot blast entirely, thereby realizes liquid, the solid dehumidification of finishing material to be dried that separates.
This decompression spray drying process that boils again changes at pressure state by the vaporization heat energy in being stored in that material is wet and dividing mainly that the back material is wet to divide boiling again vaporization to become gaseous state by liquid state, makes material to be dried realize liquid, solid initial gross separation.Make by the energy in the hot blast that infeeds by bottom, tower chamber again that residual material is wet to divide vaporization wet the branch and remain in material on the solid phase powder after separating, thereby realize liquid, the solid dehumidification of finishing material to be dried that separates fully.
Description of drawings
Fig. 1 is the wet branch decompression of the slurry/aqueous material spray-drying installation structural representation that seethes with excitement again;
Fig. 2 is a solid fuel type heating furnace structure schematic diagram;
Fig. 3 is liquid, gaseous fuel type heating furnace structure schematic diagram.
Fig. 1-2 is seethe with excitement the again most preferred embodiment of spray-drying installation of the wet branch decompression of the utility model slurry/aqueous material.
Among Fig. 1-3: 1 slurry storage tank, 2 mashing pumps, 3 heating furnaces, 4 fume pipes, 5 fog-spray nozzles, 6 waste gas, 7 drying towers, 8 powder outlets, 9 fuel-airs, 10 exhanst gas outlets, 11 normal temperature slurry imports, 12 temperature of high temperature slurry export 13 outer spiral coil 14 internal layer spiral coils 15 solid fuel combustion apparatus 16 gases, liquid-fuel burner interface.
The specific embodiment
Below in conjunction with accompanying drawing 1-3 the wet branch decompression of the utility model slurry/aqueous material spray-drying installation that seethes with excitement again is described further:
With reference to Fig. 1:
The wet branch decompression of this slurry/aqueous material spray-drying installation that seethes with excitement again, form by slurry storage tank 1, mashing pump 2, heating furnace 3, fume pipe 4, fog-spray nozzle 5, waste gas 6, drying tower 7, powder outlet 8, fuel-air 9, slurry storage tank 1 and mashing pump 2 link to each other by process pipe, mashing pump 2 and heating furnace 3 link to each other by process pipe, heating furnace 3 links to each other with fog-spray nozzle 5 by process pipe, and fog-spray nozzle 5 is installed in the drying tower 7.Material in heating furnace 3 coil pipes arrives fog-spray nozzle 5 by injection spray pipe, fog-spray nozzle 5 is sprayed onto in the tower chamber of drying tower 7 again, flue gas in the heating furnace 3 is transported to the bottom, tower chamber of drying tower 7 by fume pipe 4, waste gas 6 in the drying tower 7 tower chambeies is discharged by air exhauster, and dry powder 8 is from drying tower 7 funnel-forms outlet output.
With reference to Fig. 2
The heating furnace 3 of slurry adopts DC system panel tubulose boiler.Fig. 2 is the solid fuel type, form by solid fuel combustion apparatus 15, exhanst gas outlet 10, normal temperature slurry import 11, temperature of high temperature slurry outlet 12, outer spiral coil 13 and internal layer spiral coil 14, this heating furnace 3 adopts the two-layer coil-like container of putting external spiral coil pipe 13 and inside spin coil pipe 14 in burner hearth to be used as the stream storage space and the heat exchange working face of material to be dried, finish fuel thermal energy (high-temperature flue gas) and shift, it is heated is warming up to operating temperature to the portion of energy of material to be dried; Flue gas after the part heat release (or being converted to hot-air) then flows out from burner hearth and enters from bottom, drying tower 7 tower chambeies as hot blast that drying tower 7 tower chambeies are inner continues heat release and finish the wet absorption that divides of residual material.
With reference to Fig. 3
The heating furnace 3 of slurry adopts the DC system panel tubulose boiler of inside and outside two-layer coil pipe.Fig. 3 is liquid, gaseous fuel type.The gas of this heating furnace 3, liquid-fuel burner interface 16 are arranged on the middle part, top of heating furnace 3, and all the other structures are with the solid fuel type of Fig. 2.
The course of work is as follows:
At first will be stored in normal temperature slurry to be dried/aqueous material in the slurry storage tank 1 and be delivered in the heating furnace 3 and be heated to (material wet divide) above certain temperature of normal boiling point with mashing pump 2 pressure (being higher than the wet pairing pressure of normal boiling point that divides of material), and flow to drying tower 7 interior fog-spray nozzles 5 along pipeline and be in the vaporific tower chamber that is sprayed on drying tower 7.At this moment, the wet branch because of losing answered ebullition, gasification after pressure (being normal pressure in the tower) changes into superheat state immediately by the material in high temperature slurry to be dried/aqueous material, thereby realize powder material and the wet initial gross separation that divides of material.The wet branch of isolated material (being steam state) makes progress because of proportion is little and floats; Isolated material (still containing the wet powder that divides of a small amount of material) is then because of sending into drying medium (hot flue gas or hot-air that heating furnace discharge) the further dehumidification of drying tower 7 bottoms because of contact by fume pipe 4 than great free-falling and in the free-falling process and discharging from drying tower 7 tower bottom powder outlets 8.Draw on 6 tops by drying tower 7 of waste gas in the drying tower 7.
Claims (5)
1, the wet branch decompression of the slurry/aqueous material spray-drying installation that seethes with excitement again, comprise slurry storage tank, mashing pump and drying tower, it is characterized in that: slurry storage tank (1) and mashing pump (2), mashing pump (2) all links to each other by process pipe with fog-spray nozzle (5) with heating furnace (3) and heating furnace (3), and fog-spray nozzle (5) is installed in the tower chamber of drying tower (7).
2, wet the branchs decompression of the slurry according to claim 1/aqueous material spray-drying installation that seethes with excitement again is characterized in that: heating furnace (3) employing DC system panel tubulose boiler.
3, wet the branchs decompression of the slurry according to claim 2/aqueous material spray-drying installation that seethes with excitement again, it is characterized in that: the interior spiral coil of DC system panel tubulose boiler is that internal layer spiral coil (14) and outer spiral coil (13) are two-layer.
4, wet the branchs decompression of the slurry according to claim 2/aqueous material spray-drying installation that seethes with excitement again, it is characterized in that: the interior spiral coil of DC system panel tubulose boiler is three layers.
5, wet the branchs decompression of the slurry according to claim 2/aqueous material spray-drying installation that seethes with excitement again, it is characterized in that: the interior spiral coil of DC system panel tubulose boiler is an individual layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200266230U CN201417070Y (en) | 2009-06-01 | 2009-06-01 | Slurry/liquid material wetness decompression reboiling spraying drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200266230U CN201417070Y (en) | 2009-06-01 | 2009-06-01 | Slurry/liquid material wetness decompression reboiling spraying drying device |
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| Publication Number | Publication Date |
|---|---|
| CN201417070Y true CN201417070Y (en) | 2010-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200266230U Expired - Fee Related CN201417070Y (en) | 2009-06-01 | 2009-06-01 | Slurry/liquid material wetness decompression reboiling spraying drying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092783A (en) * | 2010-12-31 | 2011-06-15 | 遵义钛业股份有限公司 | Drying method of titanium tetrachloride settling mud |
| CN104906817A (en) * | 2015-05-06 | 2015-09-16 | 姜冬英 | Method and device for auxiliary control of properties of spray-dried powder |
| CN107445443A (en) * | 2017-08-31 | 2017-12-08 | 李艺 | A kind of tube furnace and fluidized bed furnace combined drying sludge, excrement material device |
-
2009
- 2009-06-01 CN CN2009200266230U patent/CN201417070Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092783A (en) * | 2010-12-31 | 2011-06-15 | 遵义钛业股份有限公司 | Drying method of titanium tetrachloride settling mud |
| CN104906817A (en) * | 2015-05-06 | 2015-09-16 | 姜冬英 | Method and device for auxiliary control of properties of spray-dried powder |
| CN107445443A (en) * | 2017-08-31 | 2017-12-08 | 李艺 | A kind of tube furnace and fluidized bed furnace combined drying sludge, excrement material device |
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| 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: 20100303 Termination date: 20120601 |