WO2008134835A1 - Séchoir à micro-ondes - Google Patents

Séchoir à micro-ondes Download PDF

Info

Publication number
WO2008134835A1
WO2008134835A1 PCT/BR2008/000125 BR2008000125W WO2008134835A1 WO 2008134835 A1 WO2008134835 A1 WO 2008134835A1 BR 2008000125 W BR2008000125 W BR 2008000125W WO 2008134835 A1 WO2008134835 A1 WO 2008134835A1
Authority
WO
WIPO (PCT)
Prior art keywords
dryer
conveyor belt
microwaves
air flow
modules
Prior art date
Application number
PCT/BR2008/000125
Other languages
English (en)
Inventor
Armando Sergio Marotti Neto
Original Assignee
Silvestro, Edda
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 Silvestro, Edda filed Critical Silvestro, Edda
Publication of WO2008134835A1 publication Critical patent/WO2008134835A1/fr

Links

Classifications

    • 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
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/009—Alarm systems; Safety sytems, e.g. preventing fire and explosions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/343—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects in combination with convection

Definitions

  • This patent of utility aims at the construction of microwaves dryer. It is made of modules standing on a conveyor belt and impelled by an air flow whirling in spiral shapes for drying biomass chips, sawdust, grass, grains and corns, among others. It is composed of different modules working at a different electricity power, varying from 3KW to 12KW each. The modules stand on a conveyor belt.
  • the microwaves dryer also comprises a system which generates a ventilation capable of shaking the product and whirl it round in a revolutionary way, a spiral thanks to a spiral shape, so that all the parts of the wood are dried uniformly and efficiently, without getting carbonized and consequently without emitting the corresponding steam which arises from carbonization.
  • This method grants a major capacity of production per hour if compared with common rotative dryers which are used for burning wood or fuel oil but they produce high temperature thus causing a difficult control of the combustion and a non-uniform product in terms of moisture contents. Besides causing a loss of biomass when it burns, the method also causes pollution because of the gas and steam emitted during carbonization.
  • This microwaves drying process is quite different from the combustion process since the material containing moisture crosses the tunnel of the resounding cavity and causes an absorption of the generated micro waves, forming a bipolar effect in which water and organic material start to interact and exchange electrons intensively under a frequency of 2,450,000 Hz oscillations which cause an immediate heating of water in each particles of the biomass and draws out the inner moisture transformed into steam and potentializes the chips because part of the resin of the wood is poured out and stands on the outer pores of the wood, so as to impermeabilize it and prevent it from reabsorbing moisture from the air.
  • This condensation system is very important because in addition to avoid pollution it also recuperates the inner substances of the material which are re-utilized for organic manures and fertilizers. These inner substances can only be drawn out safely through a microwaves system.
  • this dryer is practical under the logistic point of view because it is not heavy, it is made of light metal plates and it can be easily removed thanks to its small wheels under the dryer.
  • the modules are assembled on a conveyor belt and the drying process is continuous, forming a tunnel of micro radiation which varies its electric power from 3 to 12 KW per module. With the assemblage of 15 modules wasting 180KW or more, the dryer attains a capacity production of up to 25 tons per hour and it makes it possible to control the desired moisture of wood-chips at a very low cost of electricity.
  • the microwaves benefits are not at all attained by a common furnace which is very big and heavy and it needs to be conveyed by special trucks. Its production capacity is much lower in terms of tons per hour.
  • the present system has also the advantage of having a sensorial system which controls the moisture of the product from its entrance into the dryer so as to obtain the required dryness.
  • a sensorial system which controls the moisture of the product from its entrance into the dryer so as to obtain the required dryness.
  • the power and the velocity of the conveyor belt is regulated for obtaining the required moisture without carbonizing the product or without exceeding the point of dryness.
  • the dryer has also a mechanism which affords the movement of the wood or other products into the dryer towards various directions so that the chips are dried equally on every single side by the electromagnetic waves, consequently undergoing a complete and totally uniform drying process.
  • Figure 1 illustrates a top view of the dryer
  • Figure 2 illustrates a lateral view of the dryer
  • Figure 3 illustrates a lateral view, in traverse section of the dryer
  • FIG 4 shows a frontal view
  • Figure 5 shows a view of the dryer in longitudinal section.
  • this microwaves dryer consists in a structure (1) built with special metal plates painted with epoxy and a protecting material to reflect the microwaves radiation into the resounding cavity (2), forming a coat (3) into which is set a conveyor belt (4) with a velocity reducer commanding e the chains of the conveyor belt.
  • the material to be dried is carried by the conveyor belt 4) and its moisture is checked by a sensorial system (11) which is placed at the entrance of the dryer and its information is transferred to a computer which performs the data processing for controlling the velocity of said conveyor (4) as also the power intensity of each module, in order to obtain the expected moisture content previously scheduled in the system.
  • the microwaves dryer (1) is constructed with a special system of dissipators for an endless work relating to frequency generation, which is independent and affords to do repairs without stopping the dryer.
  • the safety system of this dryer comprises combustion sensors
  • Another safety characteristic is the blockage of radiation escape thanks to the use of metal plates painted with a special epoxy and on the accessing places of the biomass is set up pipes with circulating water which captures electromagnetic waves so as to impede the escape of electromagnetic waves either in the entrance and in the exit of the dryer.
  • the dryer comprises an instrument panel which activates each single generator system of electromagnetic frequency with an independent sensor for showing the inner temperature, the tension, the charging current, the dissipators and coolers for forcing the air.
  • This instrument panel manages several modules at the same time, according to the necessity of the product to be dried.
  • All the system is operated through a computer which makes the operational control of the process, always based on information of the sensors installed all along the dryer and it commands the drying process, the velocity and the emission of electromagnetic radiations of each module, also adjusting the overall system automatically for a better yield for optimizing the production capacity and to attain the lowest cost of electricity.
  • this dryer may be built with various dimensions, materials, parts and additional technical specifications, provided that they stick to the main objectives of our claims.
  • drying process that we are intending to patent is a new solution to any existing drying process and it fits the specific technical purposes of drying without carbonizing; drying to raise biomass calorific power; drying with efficiency just drawing out the necessary resins for impermeabilizing the biomass; drying at low cost for using microwaves system for the dehydration of wood, sawdust, grass, grains, cereals, among others, destinated to the production of briquettes, pellets and wood-chips meant for the generation of electricity into power plants where pollutant fuel has to be replaced by highly calorific biomass.
  • this innovating dryer is unique and must be registered as the first invention in this field to be protected from imitations and plagiarism.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Molecular Biology (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne un séchoir pour sécher de la biomasse telle que du bois, de la sciure, de l'herbe, des grains, du maïs, etc., et la transformer en énergie de remplacement de carburants polluants comme le pétrole et autres. Le séchoir modulaire contient des générateurs de micro-ondes (5) qui peuvent être commandés indépendamment les uns des autres; une bande transporteuse (4); un écoulement d'air tourbillonnant en spirale; une paroi interne munie d'une pale en spirale (7); des guides d'onde (6); des conduites d'aspiration (9) provoquant une pression négative; un système d'échappement (10) et un condenseur. Les modules sont faits de plaques réfléchissantes peintes avec une résine époxy contenant une substance protectrice.
PCT/BR2008/000125 2007-05-04 2008-05-02 Séchoir à micro-ondes WO2008134835A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRMU-8700836-0 2007-05-04
BRMU8700836-0U BRMU8700836U (pt) 2007-05-04 2007-05-04 secador por microondas modular com turbilhonamento em caracol por fluxo de ar sobre esteira

Publications (1)

Publication Number Publication Date
WO2008134835A1 true WO2008134835A1 (fr) 2008-11-13

Family

ID=39791642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2008/000125 WO2008134835A1 (fr) 2007-05-04 2008-05-02 Séchoir à micro-ondes

Country Status (2)

Country Link
BR (1) BRMU8700836U (fr)
WO (1) WO2008134835A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009033285A1 (fr) * 2007-09-13 2009-03-19 Enwave Corporation Appareil et procédé pour déshydrater des matières biologiques
WO2010028488A1 (fr) * 2008-09-12 2010-03-18 Enwave Corporation Appareil et procédé de déshydratation de matières biologiques par congélation et micro-ondes
CN101858687A (zh) * 2010-05-26 2010-10-13 合肥市顺昌不锈钢设备制造有限公司 一种电磁烘干加热设备
WO2012101518A1 (fr) 2011-01-25 2012-08-02 Giuliano Grassi Appareil et procédé de torréfaction de biomasses lignocellulosiques et mélanges avec des liquides
AT12590U1 (de) * 2010-01-25 2012-08-15 Helmholtz Zentrum Umweltforsch Vorrichtung zur trocknung und dekontamination von mauerwerk, beton, holz und anderen feststoffen
CN102889771A (zh) * 2012-10-24 2013-01-23 无锡市通和工机有限公司 微波干燥器
CN103075872A (zh) * 2013-02-27 2013-05-01 岳阳钟鼎热工电磁科技有限公司 农副产品微波热风脱水干燥设备
CN105180616A (zh) * 2015-10-27 2015-12-23 中国科学院上海高等研究院 一种连续式高效谷物微波干燥机及其结构优化方法
CN106016986A (zh) * 2016-05-06 2016-10-12 电子科技大学 一种带金属反射板的褐煤干燥提质线
US9883693B1 (en) 2016-07-26 2018-02-06 Donald Cradic Moisture removal system
CN109046897A (zh) * 2018-09-28 2018-12-21 庄婉卿 一种运用风力微波的木材油漆吹干设备
CN111336771A (zh) * 2020-03-03 2020-06-26 济宁学院 一种粮食干燥装置及方法
CN115574589A (zh) * 2022-11-08 2023-01-06 青州市博奥炭黑有限责任公司 一种炭黑干燥机的防腐蚀装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114850008B (zh) * 2022-06-08 2023-01-10 浙江嘉柯新材料科技有限公司 微波干燥合成革水性聚氨酯涂层装置及工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027400A (en) * 1975-01-06 1977-06-07 Swift And Company Limited Fluid removal in food processing, method and apparatus
US4622446A (en) * 1982-12-09 1986-11-11 House Food Industrial Company Ltd. Microwave drying apparatus and use thereof
US5135122A (en) * 1989-01-03 1992-08-04 The J. M. Smucker Company Method and apparatus for dehydrating fruit
JP2002046108A (ja) * 2000-08-01 2002-02-12 Nagai Kikai Seisakusho:Kk 木材の乾燥装置
US20040187340A1 (en) * 2003-01-21 2004-09-30 Farid Chemat Solvent-free microwave extraction of volatile natural substances
GB2425164A (en) * 2005-03-14 2006-10-18 S M C Srl Modular continuous evaporator drier apparatus with separate microwave heating and air flow chambers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027400A (en) * 1975-01-06 1977-06-07 Swift And Company Limited Fluid removal in food processing, method and apparatus
US4622446A (en) * 1982-12-09 1986-11-11 House Food Industrial Company Ltd. Microwave drying apparatus and use thereof
US5135122A (en) * 1989-01-03 1992-08-04 The J. M. Smucker Company Method and apparatus for dehydrating fruit
JP2002046108A (ja) * 2000-08-01 2002-02-12 Nagai Kikai Seisakusho:Kk 木材の乾燥装置
US20040187340A1 (en) * 2003-01-21 2004-09-30 Farid Chemat Solvent-free microwave extraction of volatile natural substances
GB2425164A (en) * 2005-03-14 2006-10-18 S M C Srl Modular continuous evaporator drier apparatus with separate microwave heating and air flow chambers

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009033285A1 (fr) * 2007-09-13 2009-03-19 Enwave Corporation Appareil et procédé pour déshydrater des matières biologiques
US8718113B2 (en) 2007-09-13 2014-05-06 Enwave Corporation Apparatus and method for dehydrating biological materials
WO2010028488A1 (fr) * 2008-09-12 2010-03-18 Enwave Corporation Appareil et procédé de déshydratation de matières biologiques par congélation et micro-ondes
US10023857B2 (en) 2008-09-12 2018-07-17 En Wave Corporation Apparatus and method for dehydrating biological materials with freezing and microwaving
US10844366B2 (en) 2008-09-12 2020-11-24 Enwave Corporation Apparatus and method for dehydrating biological materials with freezing and microwaving
AT12590U1 (de) * 2010-01-25 2012-08-15 Helmholtz Zentrum Umweltforsch Vorrichtung zur trocknung und dekontamination von mauerwerk, beton, holz und anderen feststoffen
CN101858687A (zh) * 2010-05-26 2010-10-13 合肥市顺昌不锈钢设备制造有限公司 一种电磁烘干加热设备
WO2012101518A1 (fr) 2011-01-25 2012-08-02 Giuliano Grassi Appareil et procédé de torréfaction de biomasses lignocellulosiques et mélanges avec des liquides
CN102889771A (zh) * 2012-10-24 2013-01-23 无锡市通和工机有限公司 微波干燥器
CN103075872A (zh) * 2013-02-27 2013-05-01 岳阳钟鼎热工电磁科技有限公司 农副产品微波热风脱水干燥设备
CN103075872B (zh) * 2013-02-27 2014-09-03 岳阳钟鼎热工电磁科技有限公司 农副产品微波热风脱水干燥设备
CN105180616A (zh) * 2015-10-27 2015-12-23 中国科学院上海高等研究院 一种连续式高效谷物微波干燥机及其结构优化方法
CN105180616B (zh) * 2015-10-27 2018-01-30 中国科学院上海高等研究院 一种连续式高效谷物微波干燥机及其结构优化方法
CN106016986A (zh) * 2016-05-06 2016-10-12 电子科技大学 一种带金属反射板的褐煤干燥提质线
CN106016986B (zh) * 2016-05-06 2021-02-05 电子科技大学 一种带金属反射板的褐煤干燥提质线
US9883693B1 (en) 2016-07-26 2018-02-06 Donald Cradic Moisture removal system
CN109046897A (zh) * 2018-09-28 2018-12-21 庄婉卿 一种运用风力微波的木材油漆吹干设备
CN111336771A (zh) * 2020-03-03 2020-06-26 济宁学院 一种粮食干燥装置及方法
CN111336771B (zh) * 2020-03-03 2021-08-03 济宁学院 一种粮食干燥装置及方法
CN115574589A (zh) * 2022-11-08 2023-01-06 青州市博奥炭黑有限责任公司 一种炭黑干燥机的防腐蚀装置
CN115574589B (zh) * 2022-11-08 2023-09-26 青州市博奥炭黑有限责任公司 一种炭黑干燥机的防腐蚀装置

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