CN201628461U - Drying device using superheated steam - Google Patents
Drying device using superheated steam Download PDFInfo
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- CN201628461U CN201628461U CN2010201174756U CN201020117475U CN201628461U CN 201628461 U CN201628461 U CN 201628461U CN 2010201174756 U CN2010201174756 U CN 2010201174756U CN 201020117475 U CN201020117475 U CN 201020117475U CN 201628461 U CN201628461 U CN 201628461U
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- drying machine
- drying device
- drying
- steam
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Abstract
The utility model provides a drying device using superheated steam. Two or a plurality of drying machines (D1 and D2) are arranged on the drying device (D); one or a plurality of superheater units (Sh1 and Sh2) are connected with the drying machines; at least one of the drying machines is a high pressure drying machine (D1) and at least one of the drying machines is a low pressure drying machine (D2); and the steam (H1) steamed out from the high pressure drying machine (D1) is used as the heating steam of the superheater unit (Sh2) of the low pressure drying machine (D2). Relative to energy consumption, the work of the drying device using superheated steam is displayed to be very effective.
Description
Technical field
Invention relates to a kind of drying device that uses superheated steam.
Background technology
When drying comprised drying precipitated and liquid, the problem that often runs into was to consume lot of energy.In this case, because the energy that consumes is many, the operating efficiency of drying device is just not high.The consumption of energy can reduce, and for example, uses superheated steam to come replaces air in drying machine.In this case, for heating material to be dried and evaporation moisture content consume considerable heat energy, and the heat loss in the drying device and all bigger with the heat loss of evaporated vapor, this still is a problem.
Summary of the invention
The present invention proposes a kind of drying device that uses superheated steam, is characterized in that for the consumption of energy, the work of described device is shown as effective especially.
In order to realize this purpose, the present invention gives prominence to several characteristics, and they list in the claim respectively; In other claim, provided some sure remodeling way of the present invention.
Drying device has to be no less than two drying machines that are installed in series made in accordance with the present invention, and one of them is the high pressure drying machine, and second is the low pressure drying machine.The steam that evaporates from the high pressure drying machine is as the heating steam of low pressure drying machine superheater.The pressure of low pressure heating steam be can improve, for example, steam jet ejector or mechanical compress steam utilized.Can use such as steam or other gas, perhaps the superheater of the sufficiently high liquid heating high-pressure of serviceability temperature drying machine.What will propose especially a bit is in the low pressure drying machine, can use the steam that is evaporated from the high pressure drying machine.
According to one of main points of the present invention, superheater can be divided into several sections, promptly heat the head end part of superheater, and heat its terminal part, to reach sufficiently high heating-up temperature with the heating thing of heat with the heating thing of low-heat.
According to one of main points of the present invention, partly send into the wet stock that can adhere to dust to the head end of drying machine, in this case, drying machine need not to have independent dust separator, but on the other hand, the pressure in the low pressure drying machine can hang down and remove not dry linting dirt.The pressure of low pressure drying machine can be 150～250 megabars, and for example, the density of air is about 1.2 kilograms/meter
3, and when 200 megabars, the density of steam is 0.13 kilogram/meter
3In addition, the high pressure drying machine can be handled the material that contains than high-moisture.Therefore, according to the solution of the present invention, when removing dust, also demonstrate special advantage.
According to one of main points of the present invention,, low pressure discharge pipe and a pressure-compensating chamber are joined in order to remove the dry material of drying machine.In this pressure-compensating chamber, utilize vavuum pump, can cause than vacuum higher in the close drying unit room; After this, can in this pressure-compensating chamber, send into existing atmospheric pressure, so that discharge product from drying machine.
According to one of main points of the present invention, the steam that from vaporising device, evaporates, condensation in mixing condenser, this condenser is used for handling the steam that contains dust, ammonia and/or alcohol.From mix refrigerator, take inert gas away,, can utilize vavuum pump from drying machine, to take inert gas away by a kind of suitable method.
According to one of main points of the present invention, in drying device, have to be no less than two mixing refrigerators, obtain the cooling water of heat from one of them, obtain cold water from second refrigerator, hot cooling water suitably can be used for heat supply network.In a refrigerator, regulate the boiling pressure in the high pressure drier, in second refrigerator, regulate the boiling pressure in the low pressure drier.
According to one of main points of the present invention, the steam that at least a portion evaporates from the high pressure drying machine is sent to the low pressure refrigerator through the low pressure drying machine.In this case, gas (steam) provides the heat of part self to the low pressure drying machine.
According to one of main points of the present invention, the ejector of described drying machine can suck the steam that the high pressure drying machine evaporates, but the pressure ratio that the low pressure ejector is enhanced is less, thereby its suction coefficient is better than the suction coefficient of high pressure ejector.Correspondingly, the pressure that the high pressure ejector is enhanced is less, thereby its suction coefficient can be lower.Like this, use two ejectors, can reach optimization to the steam that will utilize.
According to one of main points of the present invention, all steam that evaporate from the high pressure drying machine all are used for the superheater of low pressure drying machine basically, in this case, can be reached best by the amount of presumable mechanical compressor inhaled air.In many cases,, do not need injector or compressor, the steam in the high pressure drying machine can be introduced directly into superheater for improving pressure in the low-pressure superheater.
According to one of main points of the present invention, can also send into a kind of or multiple material to be dried toward the low pressure drying machine, this additional material of sending into can be similar with the material that is sent to the high pressure drying machine, thereby can regulate the total production capacity of described device best.The described additional material of sending into can be other material, for example, is used for changing the additive of thing component to be dried and/or structure.This scheme of described drying device also can be improved its work.
According to one of main points of the present invention, described superheater is divided into one or more parts, uses material heating wherein the head end part colder than terminal part wherein, and it is many-sided and more effective to do the work that can make superheater like this.
According to one of main points of the present invention, drier is divided into two or more parts, and material to be dried and/or additive are delivered to second portion or its aft section, and it is many-sided and more effective more to do the work that can make drying device like this.
According to one of main points of the present invention, described drying machine is tilted when work, this can have influence on material time of staying in hothouse, thereby makes the dry run optimization.
According to one of main points of the present invention, the effect of the backflow blower fan of centrifugal blower performance drying machine.Gas is tangentially extracted out from passage, and therefore, the absorption air-flow that directly obtains this blower fan and caused so just can be avoided rotating stream at the wind sleeve of blower fan, and blower fan can be worked best by short suction passage.
According to one of main points of the present invention, the pressure in described one or more drying machines can periodically reduce/raise frequently, and this for example can help that water comes out in chamber.The fluctuation of pressure, such as can for+/-50 the crust; The duration of loop cycle is such as can be at 15 seconds to 15 minutes.Described loop cycle can be such as reduction by 1 minute, raises 3 minutes, and all constant pressure is 5 minutes.For example, the pressure in the high pressure drying machine can be 900～1013 megabars, and the pressure in the low pressure drying machine is 150～250 megabars.
According to one of main points of the present invention, the end of dry cabinet chamber is the cone that inwardly concaves, and its advantage is that the material that is not dried is easy to remove from cone, because when rotation was very slow, blender also can scraped cone.Velocity of rotation can be defined as optimum by such calculating, and promptly material to be dried mixes, and " flows " equably, has covered dry cabinet inner room simultaneously.The velocity of rotation of blender being remained do not isolate dust from material to be dried low like that, will be useful.
According to one of main points of the present invention, make the gas that enters dry cabinet the inside, and gas from wherein coming out, arrive the edge of dry cabinet along tangential direction, this can make gas drop into rotation effectively, particularly near manhole appendix.Such advantage is, can make the edge cleaning of dry cabinet, and inner air-flow becomes evenly, thereby, make dry run more effective, and minimizing is to the requirement of technical maintenance.
According to one of main points of the present invention, blower fan and agitator inlet have high density, and in this case, the air in the environment of minute quantity enters into process, and air also can reduce the efficient of mixing cooler.Thereby, guarantee density, can make the work of device more effective, also reduce the danger of dust explosion.
According to one of main points of the present invention, the condensate liquid that comes out from superheater under heating jacket helps, is used for material in the heat drying cabinet.Doing like this and can reclaim heat from the condensate liquid that returns, generally speaking, make condensate liquid be cooled to temperature and be not higher than 105 ℃, will be very useful.
Description of drawings
Fig. 1 is the structural representation block diagram of expression an embodiment of the present invention drying device.
The specific embodiment
Fig. 1 illustrates drying device D constructed in accordance, and it has two drying machine D1 and D2, and one of them is high pressure drying machine D1, and second is low pressure drying machine D2.For the dust that avales, the pressure P 2 among the low pressure drying machine D2 is suitably determined in the value less than 150～250 megabars, and the pressure P 1 of high pressure drying machine D1 is suitably determined in the value less than 900～1013 megabars.Described each drying machine is equipped with blower fan F1 and F2 respectively, superheater Sh1 and Sh2, cooler C1 and C2, and thermic devices K11 that is connected with cooler and device for cooling K12.
In cooler C1, regulate the boiling pressure in the high pressure drying machine, in cooler C2, regulate the boiling pressure in the low pressure drying machine.With steam S heating high-pressure superheater Sh1, the steam H1 that evaporates from the drying machine D1 with high pressure P 1 is by valve X1, as the heating steam of the superheater Sh2 of the drying machine D2 of low pressure P2.
In order to collect dust, material T to be dried is delivered to the head end part D1a of high pressure drying machine D1 through preheater PhO, heat exchanger LVO is arranged on preheater PhO, can be sent to this interchanger from the heating steam of high-pressure superheater Sh1.The dry material TJ of part is sent to the head end D2a of low pressure drying machine from the terminal D1b of high pressure drying machine, at the terminal D2b of drying machine D2 a pressure-compensating chamber S1 is arranged, and is used for getting rid of dry material J.
For steam being delivered to superheater Sh
2, connect thermodynamic steam pump TVR or mechanical vapour pump MVR.Superheater Sh2 is divided into two parts, with the steam H1 of evaporation, and also promptly cold material heating head end part wherein than end portion, and end portion can also be steam S heating with the material than heat.
The end of described drying machine D1 and D2 inwardly concaves, in order that control material T, and Tj, J passes through, and described drying machine D1 and D2 provide inclined plane mechanism (not shown in figure 1).
Send into and send dry gas for direction tangentially, described drying machine D1 and D2 are furnished with tangential guiding mechanism, are provided with the tangential suction connection (not shown in figure 1) from suction passage on backflow blower fan F1 and F2.
Described drying machine D2 has heat exchange surface LV2, for heating products, serves the condensate liquid L that comes out from low-pressure superheater Sh2 toward this surface.Steam H1 to small part evaporates from high pressure drying machine D1 can be discharged into low pressure cooler C2 through low pressure drying machine D2.
Claims (13)
1. drying device that uses superheated steam, it is characterized in that, two or more drying machine (D1 are arranged on drying device (D), D2), that be connected with them is one or more superheater (Sh1, Sh2), at least one is that high pressure drying machine (D1) and at least one are low pressure drying machine (D2) in the described drying machine, and the steam (H1) that evaporates from high pressure drying machine (D1) is as the heating steam of the superheater (Sh2) of low pressure drying machine (D2).
2. drying device according to claim 1 is characterized in that, material to be dried (T) is delivered to the fore-end (D1a) of high pressure drying machine (D1), to collect the dust that may generate.
3. drying device according to claim 1 and 2 is characterized in that, the pressure in the described low pressure drying machine is 150～250 megabars, so that avale dust.
4. drying device according to claim 1 and 2 is characterized in that, connects a thermodynamic steam pump (TVR), and steam is delivered to low-pressure superheater (Sh2).
5. drying device according to claim 1 and 2 is characterized in that, connects a mechanical vapor pump (MVR), and steam is delivered to low-pressure superheater (Sh2).
6. drying device according to claim 1 and 2 is characterized in that, (Sh1 Sh2) is divided into two or more parts to described superheater, uses material heating wherein the head end part colder than terminal part wherein.
7. 1 or 2 described drying devices as requested is characterized in that (D1 D2) is divided into two or more parts to described drying machine, and material to be dried and/or additive (T) are delivered to the part of second portion or its back.
8. drying device according to claim 1 and 2 is characterized in that, described drying machine (D1 D2) is equipped with pressure-compensating chamber (S1), with remove material (Tj, J).
9. drying device according to claim 1 and 2 is characterized in that, (D1 D2) provides inclined plane mechanism to described drying machine, in order to control material (T, Tj, passing through J).
10. drying device according to claim 1 and 2 is characterized in that, (D1, the end of case chamber D2) is the cone that inwardly concaves to described drying machine.
11. drying device according to claim 1 and 2 is characterized in that, described drying machine (D
1, D
2) tangential guider is equipped with to gas, send into and send dry gas in order to direction tangentially.
12. drying device according to claim 1 and 2 is characterized in that, gives backflow blower fan (F
1, F
2) be furnished with tangential suction connection from suction passage.
13. drying device according to claim 1 and 2 is characterized in that, described drying machine (D
1, D
2) have one or more heat-exchange devices.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FIU20090031 | 2009-01-27 | ||
| FI20090031U FI8361U1 (en) | 2009-01-27 | 2009-01-27 | Superheated steam dryer equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201628461U true CN201628461U (en) | 2010-11-10 |
Family
ID=40329571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201174756U Expired - Fee Related CN201628461U (en) | 2009-01-27 | 2010-01-25 | Drying device using superheated steam |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN201628461U (en) |
| FI (1) | FI8361U1 (en) |
| RU (1) | RU93952U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322783A (en) * | 2013-05-27 | 2013-09-25 | 南京航空航天大学 | Mechanical steam recompression overheated steam drying system and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2446371C2 (en) * | 2010-06-09 | 2012-03-27 | Научно-производственная фирма с ограниченной ответственностью "Экополимер" | Device for drying sediments, active sludge or industrial and household sewage sediments |
-
2009
- 2009-01-27 FI FI20090031U patent/FI8361U1/en not_active IP Right Cessation
-
2010
- 2010-01-21 RU RU2010101724/22U patent/RU93952U1/en not_active IP Right Cessation
- 2010-01-25 CN CN2010201174756U patent/CN201628461U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322783A (en) * | 2013-05-27 | 2013-09-25 | 南京航空航天大学 | Mechanical steam recompression overheated steam drying system and method |
| CN103322783B (en) * | 2013-05-27 | 2015-02-04 | 南京航空航天大学 | Mechanical steam recompression overheated steam drying system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| FIU20090031U0 (en) | 2009-01-27 |
| FI8361U1 (en) | 2009-08-03 |
| RU93952U1 (en) | 2010-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20180125 |