EP1800077A1 - Appareil de sechage et procede d'utilisation et de fabrication associe - Google Patents

Appareil de sechage et procede d'utilisation et de fabrication associe

Info

Publication number
EP1800077A1
EP1800077A1 EP05775186A EP05775186A EP1800077A1 EP 1800077 A1 EP1800077 A1 EP 1800077A1 EP 05775186 A EP05775186 A EP 05775186A EP 05775186 A EP05775186 A EP 05775186A EP 1800077 A1 EP1800077 A1 EP 1800077A1
Authority
EP
European Patent Office
Prior art keywords
gas
drying
dryer
unit
drying vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05775186A
Other languages
German (de)
English (en)
Other versions
EP1800077A4 (fr
Inventor
Heimo Välimäki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1800077A1 publication Critical patent/EP1800077A1/fr
Publication of EP1800077A4 publication Critical patent/EP1800077A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
    • F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
    • F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
    • F26B17/205—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined with multiple chambers, e.g. troughs, in superimposed arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/041—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying flowable materials, e.g. suspensions, bulk goods, in a continuous operation, e.g. with locks or other air tight arrangements for charging/discharging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers

Definitions

  • the invention relates to a dryer for drying liquid and slurry-like materials, said dryer comprising a drying vessel, a material supply unit and a material removal unit.
  • the invention also relates to a method for using and manufacturing the dryer.
  • Liquid and slurry-like material is usually dried in drying vessels by means of a shell connected to the vessel. Hot water or steam, for example, can be led to the shell.
  • the target in drying is to heat the material to such dryness that it boils off water from itself at the applied pressure.
  • Methods are also known, in which steam is led to be mixed with the material contained in the drying vessel for heating and partially drying it.
  • a central problem in the dryers is soiling of heat transmission surfaces and low heat transmission due to which they require a large heat transmission surface.
  • dryers employing steam can be efficient, but on the other hand, their energy consumption can be very high.
  • a dryer has now been invented, which is very efficient and the energy consumption of which is extremely low.
  • a special advantage is also that it is very efficient compared to its size.
  • the dryer according to the invention includes a gas supply unit and a gas exhaust unit, and connected to the gas exhaust unit there is a vacuum pump for generating a vacuum and for removing the exhaust gas generating during drying, and connected to the gas exhaust unit and the drying vessel and to between the gas exhaust unit and the gas supply unit there are a circulating fan and a circulated gas superheater for superheating the exhaust gas generating during drying and for circulating it back to the drying vessel.
  • a mixer for mixing the material to be dried. This can be used to partially enhance the drying.
  • the drying surface can be made larger and it is possible to obtain a desired type of material, e.g. powdery, depending on the mixer design.
  • the structure of the material can be influenced by the mixer design and mixing power.
  • the dryer according to the invention is essentially impermeable to gas.
  • external air must not be allowed to enter the process.
  • a mechanical seal is advantageously used as the shaft seal for the fan.
  • a mechanical seal can advantageously be used in the possible mixer of the drying vessel as well.
  • the sealing agent can advantageously be liquid or steam.
  • a dust separator is connected to the gas exhaust unit for separating dust from the exhaust gas. This can be used to remove any dust emissions, which may be carried along with steam or non- condensing gases in certain conditions.
  • the dust separator can be an updraught chamber, filter bag, or a water shower, for example. It can be composed of one or more units.
  • the dust separator chamber is advantageously formed by the gas exhaust unit. This provides structural and functional benefits.
  • the gas temperature is increased by circulating the gas via the superheater to such a high level that the desired drying condition is achieved. Additional steam may be required approximately for the amount of the evaporating energy. Energy is not essentially consumed e.g. for increasing the superheating temperature, because, besides the consumption of evaporating energy, the steam temperature does not otherwise decrease in the drying vessel, and the circulating fan, for example, increases the steam temperature.
  • the chamber does not contain oxygen, there is no risk of explosion or oxidation risk for the product. Due to the long heat treatment time, the product is hygienically of a high quality.
  • Heat transmission in this type of dryer is very efficient, as the energy difference (remainder of in-going and out-going steam) of the superheated aqueous steam can be directly transferred to the material to be dried. At the same time, the energy of aqueous steam evaporating from the dried material can be very efficiently recovered.
  • Using steam in the dryer is particularly advantageous compared to the use of air.
  • the heat transfer capability of air is poor; in fact, in the technical sense, air is an insulator. Air itself cannot be condensed and only the moisture contained in it can be removed. In addition, air is heavier (1.2 kg/m3) than aqueous steam at the corresponding pressure (0.6 kg/m3), in which case air picks up material to be dried more easily as dust into the circulation. Furthermore, the gas (aqueous steam) led out from the process can be condensed. Condensation of water generally requires the same amount of energy independent of the exhaust gas, while heat can be recovered from steam remarkably more efficiently than from air.
  • the energy consumption of the dryer is very low, since in practice the whole heat content can often be recovered from the removing energy at a temperature only approx. 2°C lower than the temperature corresponding to the pressure in the drying chamber.
  • the temperature of the recovered water is approx. 90 0 C, and in that case the supply temperature of water used in the process can be 0-70 0 C.
  • it is possible to obtain relatively warm cooling water which can advantageously be utilized e.g. in the district heat production or for preheating boiler supply water.
  • the shape of the drying vessel of the equipment according to the invention can vary freely.
  • it is cylindrical.
  • a cylindrical vessel is easy to manufacture and allows using even very low drying pressures.
  • a particularly advantageous shape for the drying vessel is a horizontal cylinder, since this shape is technically favorable for connecting the parts and functions required by the process.
  • the number of material supply units, material removal units, gas supply units and gas exhaust units can be one or more depending on the application. It is possible, for example, to manufacture a dryer that has separate units for circulating and removing the exhaust gas. Gas removal and circulation can in some cases be advantageously connected. Connecting is beneficial in case the equipment is fitted with a dust separator that is used for treating both the exhaust gas to be removed and the exhaust gas to be circulated.
  • the dryer can be advantageously used e.g. for drying liquid and slurry-like materials to a dry powder with the water content below 10%, advantageously such as 2-5%.
  • the process can be controlled very advantageously by means of the pressure value and flow volume.
  • the pressure and the flow can be independently controlled for finding an optimum drying condition for each material and for each supply volume.
  • the drying equipment can be batch-operated or continuous or a combination of these.
  • the equipment and the method can advantageously be adapted to very many different applications.
  • the process method to be selected depends on the material to be dried; batch-type drying can advantageously be used e.g. in drying meat products and vegetables, while for drying of slurries, lignin, grain and process pulps, the use of continuous or semi-continuous equipment is advantageous.
  • a heat exchanger is connected to the drying vessel for heating the drying vessel and the material to be dried. This can be used to partially enhance drying e.g. at the feeding point or at the beginning of the batch process.
  • the equipment is provided with a separate preheater for preheating the suspension to be supplied.
  • This application can be more advantageous and efficient for some materials than a heat exchanger connected to the drying vessel.
  • the preheater functions simultaneously as a dust separator.
  • the wet input binds dust, especially if the input is advantageously mixed with a mixer.
  • Exhaust gas can advantageously be led to the heater, which allows recovering efficiently its heat in the process itself.
  • a condenser is connected to the gas exhaust unit for condensing aqueous steam from the exhaust gas. This enhances condensing.
  • a separate condenser enables separating the condensate. This provides the benefit that any impurities in water can be advantageously separated.
  • the condenser can be simultaneously used to control the process.
  • the pressure in the drying vessel can advantageously be dropped e.g. by raising the outlet gas amount by increasing the coolant flow in the condenser.
  • the equipment operates as an independent unit and does not discharge anything else except the removed water as condensate and the non-condensing gases via the vacuum pump. In this way no load is caused to the environment.
  • a so called surface condenser or a mixing condenser can be used as the condenser.
  • a mixing condenser is advantageous, if the product is fluffy or if it is desired to make the cooling water discharge as hot as possible for the heat recovery.
  • a surface condenser can be used e.g. at high pressures or when an easily controllable cooling is desired.
  • Condensate condensed from the product is recirculated in the mixing condenser. Its temperature can be reduced using a heat exchanger connected to the circulation, which can be used to recover the heat to a desired liquid. Extra condensate entering the circulation is removed from the circuit.
  • the vacuum pump functions as the condenser.
  • An annular water pump can advantageously be used as this pump. This is particularly beneficial e.g. in small applications or when aiming at equipment solutions that are as simple and compact as possible.
  • aqueous steam condenses in water and non-condensing gases are removed via the gas exhaust unit.
  • Drying materials can be characterized by 5 different states while drying aqueous slurry into a powder:
  • the product can be removed from the dryer periodically, for example.
  • the chamber can be advantageously pressurized essentially to equal pressure with the external air. In this way the discharge can be easily carried out.
  • all powder is advantageously not removed from the dryer, but the driest part, for example, from the outlet end of the dryer. It is also possible to dry the whole batch and remove a part of it after which slurry is added to the powder making in this way the powder contained in the dryer moisten again to the "grain stage".
  • the chamber can be pressurized with saturated aqueous steam or air or a mixture of these.
  • the discharge can be carried out at intervals of 1-24 hours, for example.
  • the amount of required compensating gas is relatively small.
  • air is allowed to enter into the mixing condenser, it is advantageously removed from it quickly with the evaporating steam without disturbing the process.
  • the material supply unit and the material removal unit of one embodiment of the invention are located essentially at the opposite ends of the drying vessel. This technical solution provides the suspension to be dried with a relatively long dwelling time and ensures efficient drying of the entire suspension.
  • the material supply unit and the gas exhaust unit are located essentially at the same end of the drying vessel. This can enhance the contact between the gas and the suspension to be dried and improve the drying efficiency.
  • the superheated circulating gas flows against the product flow. In this way any fine fractions, i.e. dust, detaching from the product are transferred backwards towards the wetter product and the previous drying vessel.
  • the material removal unit and the gas exhaust unit are located essentially at the opposite ends of the drying vessel.
  • This technical solution is advantageous when drying for example a product that dusts relatively more in the dry state, in which case gas removal takes place at the wet and less dusting point of the drying vessel.
  • the material removal unit and the gas exhaust unit are located essentially at the same end of the drying vessel.
  • This technical solution is advantageous when drying for example a product that is sticky in the dry state, in which case gas removal takes place at a less dusting point of the drying vessel.
  • gas removal takes place at a less dusting point of the drying vessel.
  • a product that is dust-like in the wet state for example after filtering, and sticky in the dry state, such as tar-like
  • Such sticky material efficiently makes dust adhere to itself.
  • the pressure generated in the drying vessel and the exhaust gas unit is 200 mbar or lower.
  • the heat effect can be kept minimal for example when drying heat-sensitive products.
  • the use of a low pressure is advantageous also when drying can be carried out with a relatively low heating capacity.
  • the circulating fan is a centrifugal fan.
  • a centrifugal fan can be used to circulate even large amounts of gas, if required.
  • a centrifugal fan can be adjusted in a wide range without reaching the cavitation area.
  • a centrifugal fan can advantageously be adjusted with rpm control, in which case it is easily adaptable to varying conditions, and the equipment is at the same time simple to automatize.
  • the dryer includes two or more dryers for drying the outlet suspension.
  • the material supply unit, the material removal unit, the gas supply unit and/or the gas exhaust unit of the drying vessel are composed of one or more intermediate units located between two drying vessels. This provides particular structural benefits when connecting together two or more drying vessels. In some cases, this provides functional benefits as well, as the contact between the material to be dried and the drying gas can in this case be essentially improved.
  • two or more dryers are connected in series such that the material removal unit of one dryer is connected to the material supply unit and/or as the material supply unit of the other dryer.
  • drying vessels are used in a continuously operating superheater-dryer to make sure that the product flow is as uniform as possible.
  • These chambers can advantageously be relatively narrow or long in shape.
  • the material to be dried, such as slurry or aqueous suspension, is transferred, advantageously drops, from one part to another and finally out.
  • the pressure of the dryer is varied during drying.
  • the pressure in the gas space of the drying vessel can advantageously be adjusted according to the properties of the material to be dried.
  • the pressure of the dryer is decreased during drying. As the drying proceeds, the material becomes dry being more susceptible to become airborne. Decreasing the pressure prevents the dust from becoming airborne. In the batch process this can advantageously be carried out in the final stage of drying. In a continuous process, the pressure is advantageously kept lower at the tail end of the drying vessel, where the material removal unit is located, preventing in this way the material from "taking off' with the evaporating steam at the tail end either.
  • the two or more dryers have different pressures relative to each other. This can be used to optimize the drying in relation to the properties of the material.
  • the pressure and temperature are advantageously higher in the first dryer than in the second dryer.
  • the product can be advantageously taken out of the equipment through a pressure balancing unit, such as a chamber, for adjusting the outlet pressure of the suspension.
  • the pressure balancing unit can have positive or negative pressure.
  • steam is led to the pressure balancing unit before discharging and the pressure is then balanced according to the environmental pressure.
  • the removal of suspension is as uniform as possible and on the other hand, air is not allowed to enter the drying vessel, which would impair the operation of the dryer at least temporarily.
  • the dryer is used for drying an aqueous material and a slurry-like material, such as a raw material, a semi-finished product, a product and/or waste.
  • Such materials can comprise e.g. waste water slurry, a protein product, meat, mushrooms, fruit, berries, grain products, offal, organic suspensions, wood pulps and inorganic suspensions.
  • Figure 1 illustrates a one-stage dryer.
  • FIG. 1 illustrates drying equipment with two dryers connected in series.
  • Figure 3 illustrates a double-chamber dryer
  • Figure 4 illustrates a 3-part continuously-operating dryer.
  • Figure 1 shows a dryer 20 with a drying vessel 1 , to which a material supply unit 10 and a material removal unit 9 are connected.
  • a gas supply unit 4 and a gas exhaust unit 6 are connected to the drying vessel.
  • a vacuum pump 8 is connected to the gas exhaust unit 6 for generating a vacuum, and a circulating fan 2 and a circulated gas superheater 3 are connected to the gas exhaust unit 6 and the drying vessel 1 and to between the gas exhaust unit 6 and the gas supply unit 4 for superheating the low-pressure exhaust gas 18 discharging from the drying vessel 1 and for circulating it back to the drying vessel 1.
  • Saturated aqueous steam 11 or hot water or oil, for example, is supplied to the superheater 3.
  • a condenser 7 is connected to the gas exhaust unit 6 for condensing aqueous steam from the exhaust gas 12.
  • the drying vessel 1 also comprises a mixer 5 for mixing the material to be dried. It also includes a steam supply unit 16 for heating the suspension, in which case the saturated steam is superheated with the superheater 3, as well as a heat exchanger 14 for heating the suspension and the drying vessel 1. As the heating agent 15, steam or hot water can be used.
  • FIG 2 shows drying equipment, in which there are two dryers according to Figure 1 connected in series such that the material removal unit 9 of one dryer 20 is connected to the material supply unit 10 of the other dryer 20.
  • Figure 3 illustrates 2-stage drying equipment 20 having two drying vessels 1a, 1b. Connected to the first drying vessel 1a there are a material supply unit 10, a heat exchanger 14 and a gas exhaust unit 6, and connected to the second drying vessel 1b there are a material removal unit 9 and a gas supply unit 4.
  • a vacuum pump 8 is connected to the gas exhaust unit 6 for generating a vacuum.
  • a dust separator chamber 17 is connected to the gas exhaust unit 6.
  • a circulating fan 2 and a tube heat exchanger 3 are connected to between the gas exhaust unit 6 and the gas supply unit 4 for superheating the exhaust gas removing from the first drying vessel 1a and for circulating it back to the second drying vessel 1b.
  • Saturated aqueous steam 11 or hot water for example, is supplied to the superheater 3.
  • the steam condensate 15 of the superheater is led to the heat exchanger 14 of the first drying vessel.
  • Saturated aqueous steam 11 can also be led directly to it for heating the first drying vessel 1a and the suspension. It is possible to lead also water W to the first drying vessel 1a for binding the dust of the exhaust gas 18.
  • a mixing condenser 7 is connected to the gas exhaust unit 6 for condensing aqueous steam from the exhaust gas 12.
  • the drying vessels 1a, 1b also comprise a mixer 5 for mixing the material to be dried. From the mixing condenser 7 the condensate 25 is led to the heat recovery exchanger 22 for heating the heating water 23. Cooled condensate 25 is led to the balancing tank 24, from which extra condensate 25 is removed and a part is circulated to the mixing condenser 7.
  • the running method was a continuous supply for approx. 22 hours with the dryer suspension in the "grain stage” and removal of the dried material in batches.
  • the supply took place in the breaking stage at a pressure of 815 mbara and the discharge after the dusting stage at a pressure of approx. 200 mbara, when the powder has had time to cool down at a low pressure.
  • the discharge itself was carried out at the atmospheric pressure by filling for example with steam (50 m 3 - 30 kg of steam). In this case any steam moisture cools the powder even more when evaporating from the powder surface. Since the chamber does not contain oxygen, there is no risk of explosion or oxidation risk for the product. Due to the long heat treatment time, the product is hygienically of a high quality.
  • Figure 4 illustrates continuously-operating drying equipment having three drying vessels 1c, 1d, 1e for distributing the product flow evenly.
  • a material supply unit 10 and a gas exhaust unit 6 Connected to the first drying vessel 1c there are a material supply unit 10 and a gas exhaust unit 6, and connected to the third drying vessel 1e there are a material removal unit 9 and a gas supply unit 4.
  • a vacuum pump 8 is connected to the gas exhaust unit 6 for generating a vacuum.
  • the dust separator chamber 17 is formed by the gas removal unit 6.
  • a circulating fan 2 and a tube heat exchanger 3 are connected to between the gas exhaust unit 6 and the gas supply unit 4 for superheating the exhaust gas 18 generating in the first drying vessel 1a and for circulating it back to the third drying vessel 1e.
  • drying vessels 1c, 1d, 1e Disposed between the drying vessels 1c, 1d, 1e there are intermediate units 21 for leading the suspension to be dried and the exhaust gas 18. Saturated aqueous steam 11 is supplied to the superheater 3. To the first drying vessel 1c, it is also possible to lead water W for binding the dust of the exhaust gas 18 and/or for adjusting the pressure of the vessels 1c, 1d, 1e.
  • a mixing condenser 7 is connected to the gas exhaust unit 6 for condensing aqueous steam from the exhaust gas 12.
  • the drying vessels 1c, 1d, 1e also comprise a mixer 5 for mixing the material to be dried. From the mixing condenser 7 the condensate 25 is led to the heat recovery exchanger 22 for heating the heating water 23.
  • Cooled condensate 25 is led to the balancing tank 24, from which extra condensate 25 is removed and a part is circulated to the mixing condenser 7.
  • a pressure balancing chamber 26 is connected to the material removal unit 9 for adjusting the pressure of the suspension removal. The dried product is taken out from the equipment 20 via the pressure balancing chamber 26.
  • the pressure balancing chamber can have positive or negative pressure.
  • Steam 28 is led to the pressure balancing unit 26 before discharging and the pressure is then balanced according to the environmental pressure by means of the balancing unit 27.
  • a connecting balancing unit 29 is used to balance the pressures in the pressure balancing chamber 26 and in the 3rd drying vessel 1e.

Abstract

L'invention concerne un appareil de séchage permettant de sécher un matériau aqueux. L'invention concerne également un procédé pour utiliser l'appareil de séchage et un procédé de fabrication associé. Ledit appareil de séchage (20) de l'invention comprend un récipient de séchage (1, 1a-1e), une unité d'alimentation en matériau (10) et une unité d'évacuation du matériau (9). Ledit appareil de séchage (20) comprend une unité d'alimentation en gaz (4) et une unité d'évacuation des gaz d'échappement (6), et une pompe à vide (8), reliée à ladite unité (6), permet de faire le vide et d'éliminer les gaz d'échappements (18), produits lors du séchage du récipient de séchage (1, 1a-1e), un ventilateur brasseur d'air (2) un surchauffeur (3) de gaz circulant sont reliés et placés entre l'unité d'évacuation des gaz d'échappement (6) et l'unité d'alimentation en gaz (4), ce qui permet de surchauffer le gaz d'échappement (18) basse pression évacué et de le faire recirculer vers le récipient de séchage (1, 1a-1e). L'appareil de séchage (20) est sensiblement imperméable aux gaz, et un mélangeur (5), destiné à mélanger le matériau à sécher, est relié au récipient de séchage (1, 1a-1e).
EP05775186.9A 2004-09-03 2005-08-25 Appareil de sechage et procede d'utilisation et de fabrication associe Withdrawn EP1800077A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20045322A FI20045322A (fi) 2004-09-03 2004-09-03 Kuivain sekä menetelmä sen käyttämiseksi ja valmistamiseksi
PCT/FI2005/050300 WO2006024696A1 (fr) 2004-09-03 2005-08-25 Appareil de sechage et procede d'utilisation et de fabrication associe

Publications (2)

Publication Number Publication Date
EP1800077A1 true EP1800077A1 (fr) 2007-06-27
EP1800077A4 EP1800077A4 (fr) 2013-05-22

Family

ID=33041601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05775186.9A Withdrawn EP1800077A4 (fr) 2004-09-03 2005-08-25 Appareil de sechage et procede d'utilisation et de fabrication associe

Country Status (5)

Country Link
EP (1) EP1800077A4 (fr)
CN (1) CN201155907Y (fr)
FI (1) FI20045322A (fr)
RU (1) RU67690U1 (fr)
WO (1) WO2006024696A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105861032A (zh) * 2012-04-25 2016-08-17 福克鲁姆环境解决方案公司 用于将烃与原料分离的加工装置和方法
CN109470036A (zh) * 2018-10-22 2019-03-15 重庆帅鲜农副产品配送有限公司 一种农副产品烘干设备及烘干方法

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2007475A3 (cs) * 2007-07-16 2009-03-18 Tuma@Stanislav Zarízení k sušení sypkých a kašovitých materiálu a kalu
FI20085477A0 (fi) 2008-05-20 2008-05-20 St1 Biofuels Oy Menetelmä ja laite biojätteen käsittelemiseksi
FR2947043B1 (fr) * 2009-06-23 2013-08-23 Asten Assistance Services Traitements Environnement Nucleaire Dispositif de sechage d'un dechet et procede correspondant.
FR2947044B1 (fr) * 2009-06-23 2013-06-07 Asten Assistance Services Traitements Environnement Nucleaire Dispositif de sechage de dechets par evaporation et procede correspondant.
FI121566B (fi) * 2009-11-24 2011-01-14 St1 Biofuels Oy Laite orgaanisten yhdisteiden talteenottoon ja orgaanisen massan kuivatukseen
CN101851051A (zh) * 2010-06-04 2010-10-06 苏州群瑞环保科技有限公司 一种工业污泥处理设备
CN102305521A (zh) * 2011-04-29 2012-01-04 苏州市吴赣药业有限公司 一种热风循环烘箱
NO342321B1 (no) * 2013-04-19 2018-05-07 Trond Melhus Fremgangsmåte og system for separasjon av olje og vann fra våt borekaks
CN103388962B (zh) * 2013-08-15 2015-09-30 蚌埠玻璃工业设计研究院 一种耐火材料砖的干燥装置
CN103884159B (zh) * 2014-03-19 2016-04-20 广东省昆虫研究所 一种食用/药用/饲用昆虫的干燥设备
CN104215041B (zh) * 2014-09-02 2016-11-30 浙江朗博药业有限公司 一种吸湿热风循环烘箱
CN104729270B (zh) * 2015-03-23 2017-04-05 覃健林 具有余热回收利用的烘干塔回风系统
CN104896903B (zh) * 2015-05-23 2017-05-17 季小新 尾气全回收的生物质物料烘干系统
CN105004170A (zh) * 2015-08-14 2015-10-28 吉首大学 软隔板式穿透逆流烘干机
KR20170109912A (ko) * 2016-03-22 2017-10-10 삼성에스디아이 주식회사 극판 건조 장치
CN106500493A (zh) * 2016-11-11 2017-03-15 江苏乐科节能科技股份有限公司 两段式机械蒸汽再压缩mvr干燥系统及其干燥方法
EP3361198A1 (fr) * 2017-02-13 2018-08-15 Danmarks Tekniske Universitet Installation de séchage de boue, procédé de séchage de boue et utilisation d'une installation de séchage de boue
CN107101493A (zh) * 2017-06-09 2017-08-29 枞阳县程鹏水产养殖有限责任公司 一种鱼饲料加工专用铁皮石斛热风循环干燥机
CN107606926A (zh) * 2017-09-29 2018-01-19 临汾市汇友创电子科技有限公司 一种节能粮食烘干机
CN107917595A (zh) * 2017-12-19 2018-04-17 赵立新 一种木地板样板减压干燥装置
CN109059522B (zh) * 2018-08-01 2020-07-14 泰兴冶炼厂有限公司 一种化工热蒸汽循环利用装置
CN109654810A (zh) * 2018-12-28 2019-04-19 四川省青川县自然资源开发有限公司 一种低硫烘片的流化床烘干线
JP2022526915A (ja) * 2019-04-02 2022-05-27 コベストロ・インテレクチュアル・プロパティ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・アンド・コー・カーゲー 乾燥装置及びその使用法並びに乾燥装置を使用してイソシアネートを生成するプロセス
EP3800413B1 (fr) 2019-10-03 2023-06-07 OSD System S.r.l. Appareil et procédé de séchage des boues

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466202A (en) * 1983-03-07 1984-08-21 Bend Research, Inc. Energy-efficient evaporation process with means for vapor recovery
US5291668A (en) * 1992-04-03 1994-03-08 Tecogen, Inc. Steam atmosphere drying exhaust steam recompression system
DE9311698U1 (de) * 1993-08-05 1994-06-23 Limex Gmbh Ges Fuer Angewandte Vorrichtung zur Dehydration und Trocknung von Feststoff-Flüssigkeitsgemischen (Schlämmen)
DE4332799A1 (de) * 1993-09-27 1995-03-30 Baumann Schilp Lucia Verfahren und Vorrichtung zum Entwässern von Schlämmen
US5426866A (en) * 1991-06-25 1995-06-27 Lucia Baumann-Schilp Method and apparatus for dewatering of sludges
DE19758184A1 (de) * 1997-12-30 1999-07-01 Gisbert Dr Guerth Verfahren und Vorrichtung zur Dehydratation und Trocknung von Feststoff-Flüssigkeitsgemischen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388403A (en) * 1931-07-24 1933-02-24 Oberphos Company Process and apparatus for preparing phosphatic fertilizer
DE3423388A1 (de) * 1984-06-25 1986-01-02 Karrer System AG, Zollikon, Zürich Verfahren und vorrichtung zum trocknen von fasermaterial
GB8806597D0 (en) * 1988-03-19 1988-04-20 Gbe International Plc Vacuum steam atmosphere drier
WO2003052336A1 (fr) * 2001-12-17 2003-06-26 Holm Christensen Biosystemer Aps Dispositif de sechage de produit particulaire au moyen d'un flux surchauffe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466202A (en) * 1983-03-07 1984-08-21 Bend Research, Inc. Energy-efficient evaporation process with means for vapor recovery
US5426866A (en) * 1991-06-25 1995-06-27 Lucia Baumann-Schilp Method and apparatus for dewatering of sludges
US5291668A (en) * 1992-04-03 1994-03-08 Tecogen, Inc. Steam atmosphere drying exhaust steam recompression system
DE9311698U1 (de) * 1993-08-05 1994-06-23 Limex Gmbh Ges Fuer Angewandte Vorrichtung zur Dehydration und Trocknung von Feststoff-Flüssigkeitsgemischen (Schlämmen)
DE4332799A1 (de) * 1993-09-27 1995-03-30 Baumann Schilp Lucia Verfahren und Vorrichtung zum Entwässern von Schlämmen
DE19758184A1 (de) * 1997-12-30 1999-07-01 Gisbert Dr Guerth Verfahren und Vorrichtung zur Dehydratation und Trocknung von Feststoff-Flüssigkeitsgemischen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006024696A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105861032A (zh) * 2012-04-25 2016-08-17 福克鲁姆环境解决方案公司 用于将烃与原料分离的加工装置和方法
CN105861032B (zh) * 2012-04-25 2018-03-23 福克鲁姆能源公司 用于将烃与原料分离的加工装置和方法
CN109470036A (zh) * 2018-10-22 2019-03-15 重庆帅鲜农副产品配送有限公司 一种农副产品烘干设备及烘干方法

Also Published As

Publication number Publication date
RU67690U1 (ru) 2007-10-27
CN201155907Y (zh) 2008-11-26
FI20045322A0 (fi) 2004-09-03
WO2006024696A1 (fr) 2006-03-09
EP1800077A4 (fr) 2013-05-22
FI20045322A (fi) 2006-03-04

Similar Documents

Publication Publication Date Title
WO2006024696A1 (fr) Appareil de sechage et procede d'utilisation et de fabrication associe
EP0232289B1 (fr) Procede de concentration de kaolin en boue
FI72256B (fi) Enfoerbaettrad metod foer behandling av boskapsfoderprodukt erch en anlaeggning foer genomfoerande av metoden
CN103822454B (zh) 基于机械式蒸汽再压缩的湿粕干燥系统及干燥工艺
JP2005241239A (ja) 過熱水蒸気による乾燥装置
US4259252A (en) Rendering methods and systems
CS273337B2 (en) Method of damp loose materials drying in a drier with a whirling bed and equipment for carrying out this method
CN107596706B (zh) 一种蒸汽冷凝蒸发技术及装置
Shibata et al. Steam drying technologies: Japanese R&D
AU634753B2 (en) Method of concentrating slurried kaolin
DK2511636T3 (en) Process for drying liquids, slurries, pastes, cakes and moisture particles forming particulate material by drying in a direct superheated steam dryer
CN105399301A (zh) 一种新型污泥干燥处理装置
US20130025153A1 (en) Method and system for drying biomass
CN107162102A (zh) 一种煤气化系统细渣浆液的脱水干燥方法及其使用的脱水干燥系统
US11885563B2 (en) Method and system of thermo-vacuum drying and processing
CN204478750U (zh) 一种回转窑干燥机
RU2192136C1 (ru) Способ сушки свекловичного жома
US4275036A (en) Rendering systems
KR102126462B1 (ko) 하이브리드 건조시스템 및 이를 이용한 건조방법
US10426183B2 (en) Apparatus and a method for recovery of meal
WO2018109144A1 (fr) Installation et procédé de production d'un produit séché à partir d'un produit humide
CN108619746A (zh) 一种硫酸铵母液浓缩蒸馏系统及其蒸馏工艺
JP7049635B1 (ja) 固液分離装置、燃料用原料の製造方法および食品材料の製造方法
EP1998128B1 (fr) Système de déshydratation de substances organiques sous des conditions de basse température et à vide
CN116477827A (zh) 一种干化系统及方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070220

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20130423

RIC1 Information provided on ipc code assigned before grant

Ipc: F26B 21/04 20060101ALI20130417BHEP

Ipc: F26B 5/04 20060101AFI20130417BHEP

Ipc: F26B 17/20 20060101ALI20130417BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20131126