JP2002303488A - Drying equipment - Google Patents

Drying equipment

Info

Publication number
JP2002303488A
JP2002303488A JP2001137955A JP2001137955A JP2002303488A JP 2002303488 A JP2002303488 A JP 2002303488A JP 2001137955 A JP2001137955 A JP 2001137955A JP 2001137955 A JP2001137955 A JP 2001137955A JP 2002303488 A JP2002303488 A JP 2002303488A
Authority
JP
Japan
Prior art keywords
pressure
drying
dried
heating
set
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.)
Pending
Application number
JP2001137955A
Other languages
Japanese (ja)
Inventor
Tomomi Tanabe
智実 田辺
Original Assignee
Yashio:Kk
株式会社八潮
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 Yashio:Kk, 株式会社八潮 filed Critical Yashio:Kk
Priority to JP2001137955A priority Critical patent/JP2002303488A/en
Publication of JP2002303488A publication Critical patent/JP2002303488A/en
Application status is Pending legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes
    • Y02P70/40Drying by removing liquid

Abstract

PROBLEM TO BE SOLVED: To realize a drying equipment for sludge containing water in which drying operation can be carried out economically even at a low temperature by recovering thermal energy of stream generated through drying operation with high efficiency and the heat recovery mechanism is simplified. SOLUTION: The problem is solved by contriving a method for transmitting thermal energy of stream generated by heating and drying sludge containing water directly to a matter being dried, e.g. sludge containing water, not through a heating medium and contriving a method for controlling saturated stream pressure at the time of drying sludge containing water.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】醸造廃液や水処理汚泥等については含水率が高いものが多く、再利用、廃棄、焼却等を実施するためには水分を除去する必要が有る。 Having a high moisture content is about brewing waste and water treatment sludge, etc. BACKGROUND OF THE many, re-use, disposal, necessary to remove the moisture is present in order to perform the incineration. 本発明は熱回収を行うことにより経済的に高含水率の醸造廃液や水処理汚泥等を加熱乾燥し、水分を除去する装置に関するものである。 The present invention relates to apparatus for economically heating and drying a high water content of the brewing liquid waste and water treatment sludge by performing heat recovery, to remove moisture. 又醸造廃液等を再利用する場合に成分の変質をさけるため低温で加熱乾燥を経済的に行う装置に関するものである。 Also the present invention relates to apparatus for performing economically heat drying at a low temperature to avoid degradation of the components in the case of reusing the brewing waste liquid.

【0002】 [0002]

【従来の技術】含水汚泥等の乾燥装置として、加熱効率を上げるために加熱媒体と含水汚泥等との間の熱伝達を良くするように工夫された装置が見受けられる。 2. Description of the Related Art As a drying apparatus, such as a water-containing sludge, devised an apparatus to improve the heat transfer between the heating medium and water sludge or the like in order to improve the heating efficiency is seen. しかしながらかかる装置においては、加熱エネルギーの大部分は蒸発潜熱として消費され、水蒸気とともに大気中に放出されているため加熱効率の向上は不十分である。 However, in such devices, most of the heat energy is consumed as latent heat of vaporization, improvement of heating efficiency since it is released into the atmosphere with steam is insufficient.

【0003】含水汚泥等の加熱乾燥により発生する水蒸気が保有する熱エネルギーを熱交換機を介して熱媒体に伝達することにより熱回収するシステムがあるが、(特許公開平10−337433)熱交換機において熱媒体で回収した熱エネルギーをさらに含水汚泥等に伝達しており、二段階で熱伝達するため、熱の回収率は低く又熱回収機構が複雑である。 [0003] The thermal energy possessed by the steam generated by the heating and drying of such water-containing sludge is a system for heat recovery by transferring the heat medium through the heat exchanger, in (Patent Publication flat 10-337433) heat exchanger and transfers heat energy recovered by the heat medium further water sludge, for heat transfer in two steps, the recovery of heat is complicated lower Matanetsu recovery mechanism.

【0004】 [0004]

【発明が解決しようとする課題】含水汚泥等の乾燥装置において、乾燥により発生する水蒸気が保有する熱エネルギーを高い効率で回収して経済的に乾燥を行うことが可能で、又低温での乾燥が可能であり、更に熱回収機構が簡素な乾燥装置を実現する。 The drying apparatus such as a water-containing sludge [0005] The thermal energy possessed by the steam generated by the drying was recovered with high efficiency can be performed economically drying, and dried at a low temperature are possible, further heat recovery mechanism realizes the simple drying apparatus.

【0005】 [0005]

【課題を解決するための手段】本発明は熱回収のために、含水汚泥等被乾燥物の加熱乾燥により発生する水蒸気が有する熱エネルギーを、熱媒体を介さず直接含水汚泥等の被乾燥物に伝達する方法を考案し、又含水汚泥等の乾燥時の飽和蒸気圧を制御する方法を考案し課題を解決したものである。 SUMMARY OF THE INVENTION The present invention is for heat recovery, the heat energy of the steam generated by the heating and drying of the water-containing sludge material to be dried, the material to be dried, such as direct water sludge without using the heat medium It devised a method of transmitting to, and in which the problems devised a method of controlling the saturation vapor pressure at the time of drying, such as water-containing sludge resolved.

【0006】高含水率の汚泥等の乾燥装置において、汚泥等の加熱により発生する水蒸気を圧縮機にて断熱圧縮して高温の過熱蒸気とし、この過熱蒸気を高含水率の汚泥等被乾燥物と熱交換して、冷却・凝縮し、過熱蒸気が保有する熱エネルギーを熱媒体を介さずに、直接被乾燥物に伝達することで高い熱回収効率を得る。 [0006] The drying apparatus as sludge of high water content, the water vapor generated by heating the sludge by adiabatically compressed by the compressor and the high-temperature superheated steam, sludge material to be dried in the high water content of the superheated steam and by heat exchange, cooling and condensation, the heat energy possessed by the superheated steam without using the heat medium, to obtain a high heat recovery efficiency by transmitting directly to the material to be dried. 又被乾燥物を加熱し、水分を蒸発する際に、飽和蒸気圧を一定に保つことにより被乾燥物を一定温度以下に保つことが出来、同時に過熱蒸気の冷却能力を維持することが出来る。 The heated material to be dried, when the evaporating water, saturated by keeping the vapor pressure constant can keep the material to be dried to below a certain temperature, it is possible to maintain the cooling capacity of the superheated steam at the same time. このために、蒸発槽を密閉し、蒸発槽内の圧力が設定圧力になるように、被乾燥物から蒸発した水蒸気の排気速度を制御する。 For this, sealing the evaporation chamber, so that the pressure in the evaporator tank reaches the set pressure, to control the exhaust rate of the steam evaporated from the material to be dried. 排気速度が設定した最高排気速度に達しても蒸発槽内の圧力が設定圧力より高い場合には加熱装置の加熱能力を低下させ、反対に排気速度が設定した最低排気速度に達しても蒸発槽内の圧力が設定圧力より低い場合には加熱装置の加熱能力を増加させるように制御する制御装置を設ける。 Reached the maximum pumping speed pumping speed is set to reduce the heating capacity of the heating device in the case the pressure in the evaporator tank is higher than the set pressure, the evaporation tank is reached the minimum pumping speed pumping speed is set to the opposite If the pressure of the inner is lower than the set pressure is provided a control device for controlling so as to increase the heating capacity of the heating device.

【0007】醸造廃液を乾燥し、再利用する場合、アミノ酸を含むため高温乾燥を行うと変質するため飽和蒸気圧を下げて乾燥することにより低温乾燥を行うことが出来る。 [0007] Brewing waste is dried, if reused, can be performed cold dry by drying to lower the saturation vapor pressure for alteration with said hot dry because it contains amino acids.

【0008】過熱蒸気から生じた凝縮水は被乾燥物と熱交換して、冷却された後、膨張弁により等熱函数膨張し、大気圧の水槽の水中に放出される。 [0008] condensed water generated from the superheated steam to replace the material to be dried the heat, cooled, and isothermal function expansion by the expansion valve and is released into the water of the atmospheric pressure water tank.

【0009】本発明によれば熱媒体が不要で、従って含水汚泥等被乾燥物の加熱により発生する水蒸気と熱媒体との熱交換器(凝縮器)も必要なく、水蒸気保有熱エネルギーの回収機構を簡素に構築出来る。 [0009] unnecessary heat medium according to the present invention, therefore the heat exchanger between the steam and the heat medium generated by heating water-containing sludge material to be dried (condenser) need not, steam potential heat energy recovery mechanism a simple as possible construction. 又過熱蒸気及びその凝縮水温度を比較的自由に設定出来るため、これを冷却する被乾燥物との温度差を大きくすることが出来、 The order can be set superheated steam and condensate temperature relatively freely, it is possible to increase the temperature difference between the material to be dried to cool it,
高熱伝達率を実現できる。 A high heat transfer rate can be realized.

【0010】 [0010]

【実施例1】図1は本発明装置の実施例1を示す図である。 Embodiment 1 FIG. 1 is a diagram showing a first embodiment of the present invention device. 醸造廃水は含水率が概ね95%で、これを含水率7 Brewing wastewater in moisture content of approximately 95%, which water content 7
5%迄乾燥するための装置を示す。 To 5% shows an apparatus for drying. 1は蒸発槽で醸造廃水を投入後密閉する。 1 is closed after turning the brewing wastewater evaporation tank. 8はボイラーで熱源の蒸気を蛇管5に供給し醸造廃水を加熱する。 8 heats the brewing wastewater by supplying steam of the heat source to the flexible tube 5 in the boiler. 醸造廃水から蒸発した水蒸気は真空ポンプ11で吸引され、圧縮機4で断熱圧縮され過熱蒸気となり蛇管7に供給される。 Steam evaporated from brewing wastewater is sucked by a vacuum pump 11, which is adiabatically compressed by the compressor 4 is supplied to the flexible tube 7 becomes superheated steam. 圧力検出器12は蒸発槽1内の圧力を検出し、この出力信号は制御装置13で圧力設定値と比較され、その差の信号により真空ポンプ11の回転数を制御し、蒸発槽1内の圧力を設定圧力0.03MPaになるように制御する。 The pressure detector 12 detects the pressure in the evaporator tank 1, the output signal is compared with the pressure set value by the control device 13 controls the rotational speed of the vacuum pump 11 by a signal of the difference, in the evaporator tank 1 It is controlled to be the set pressure 0.03MPa pressure. 又真空ポンプ11が設定した最高回転数に達しても蒸発槽1内の圧力が設定圧力より高い場合にはボイラー8の出力を低下させ、反対に設定した最低回転数に達しても蒸発槽1内圧力が設定圧力より低い場合にはボイラー8の出力を増加させるように制御し、蒸発槽1内の圧力を設定圧力になるように制御する。 Further reducing the output of the boiler 8 when the pressure of the maximum rotational speed even in the evaporator tank 1 reaches the vacuum pump 11 is set higher than the set pressure, even meet the minimum number of revolutions set in the opposite evaporation tank 1 when the inner pressure lower than the set pressure is controlled to increase the output of the boiler 8, it is controlled to be the set pressure of the pressure in the evaporator tank 1. この結果醸造廃水の温度は概ね70℃に保たれる。 This temperature results brewing wastewater is generally kept at 70 ° C.. 真空ポンプ11から吐出された水蒸気は圧縮機4により断熱圧縮され、概ね0.5MPa Steam discharged from the vacuum pump 11 is adiabatically compressed by the compressor 4, generally 0.5MPa
に昇圧され、概ね380℃の過熱蒸気となる。 It boosted to approximately a 380 ° C. of superheated steam. 圧力検出器14は圧縮機4の吐出圧を検出し、この出力信号により制御装置15は最大吐出圧設定値を超えないように圧縮機4の回転数を制限する。 The pressure detector 14 detects the discharge pressure of the compressor 4, the control unit 15 by the output signal limits the rotational speed of the compressor 4 so as not to exceed a maximum discharge pressure setpoint. 過熱蒸気は蛇管7に供給され、醸造廃水により冷却され、凝縮し、概ね150℃の凝縮水となり、更に冷却された後膨張弁6を通って膨張し、大気圧の水槽9の水中に放出され温水となる。 Superheated steam is supplied to the flexible tube 7, is cooled by the brewing wastewater, condensed, substantially becomes 0.99 ° C. of the condensed water, it is further through an expansion valve 6 after being cooled by expansion, releasing the water at atmospheric pressure water tank 9 the warm water. 温水は醸造廃水の予備加熱に使用され、温度が45℃以下になつた時点で放流する。 Hot water is used to preheat the brewing wastewater, temperature released in Natsuta point to 45 ° C. or less. 本装置により熱回収率61%が得られた。 Heat recovery 61% was obtained by this device.

【0011】 [0011]

【実施例2】図2は本発明装置の実施例2を示す図である。 Embodiment 2 FIG. 2 is a diagram showing a second embodiment of the present invention device. 実施例2は圧縮機4として吸引力のあるルーツ圧縮機を使用し、実施例1の真空ポンプ11を省いたものである。 Example 2 uses a roots compressor with a suction force as a compressor 4, in which omitting the vacuum pump 11 of the first embodiment. 制御装置13は蒸発槽1内の圧力が設定圧力になるように圧縮機4の回転数及び加熱装置8の加熱能力を制御し、又圧縮機4の吐出側圧力が最大設定値を超えないように圧縮機4の回転数を制限する。 The controller 13 controls the heating capacity of the rotational speed and the heating device 8 of the compressor 4 so that the pressure in the evaporation tank 1 is set pressure, and to discharge pressure of the compressor 4 does not exceed the maximum set value limiting the rotational speed of the compressor 4 in. 上記以外は実施例1と同じものである。 Other than the above is the same as in example 1. 本実施例に於いては、圧縮機4 It is in the present embodiment, the compressor 4
の吐出側圧力即ち過熱蒸気の圧力は大幅に変動するが、 Although the pressure in the discharge-side pressure or superheated steam varies greatly,
熱回収率56%が得られた。 Heat recovery 56% was obtained.

【0012】 [0012]

【発明の効果】以上説明したように、本発明の乾燥装置によれば含水汚泥等を経済的に乾燥出来る。 As described above, according to the present invention, economically it can dry the water sludge, according to the drying apparatus of the present invention. 又醸造廃水等を乾燥して再利用する場合には変質を防ぐために低温で乾燥を行うことが出来る。 Also in the case of reusing by drying the brewed wastewater, etc. it can perform the drying at a low temperature in order to prevent deterioration. 更に本発明の乾燥装置は熱エネルギーの回収機構が簡素なため、装置の製作費が安価となる。 For further drying apparatus of the present invention is simple recovery mechanism of the thermal energy is, manufacturing cost of the apparatus is inexpensive.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の乾燥装置(実施例1)の説明図である。 FIG. 1 is an explanatory view of a drying device (Embodiment 1) of the present invention.

【図2】本発明の乾燥装置(実施例2)の説明図である。 FIG. 2 is an explanatory view of the drying apparatus of the invention (Example 2).

【符号の説明】 DESCRIPTION OF SYMBOLS

1 蒸発槽 2 安全弁 3 攪拌機 4 圧縮機 5 蛇管 6 膨張弁 7 蛇管 8 ボイラー 9 水槽 10 消音・消臭器 11 真空ポンプ 12 圧力検出器 13 制御装置 14 圧力検出器 15 制御装置 16 ポンプ 17 ポンプ 1 evaporation tank 2 the safety valve 3 stirrer 4 compressor 5 coiled 6 expansion valve coiled 8 boiler 9 aquarium 10 Mute & deodorizer 11 vacuum pump 12 pressure detector 13 control unit 14 pressure detector 15 control device 16 Pump 17 Pump

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 含水汚泥等の液状の被乾燥物を蒸発槽に挿入し、加熱装置により加熱して乾燥する乾燥装置であって、被乾燥物から発生する水蒸気を断熱圧縮して過熱蒸気とし、この過熱蒸気と被乾燥物との間で熱交換し、 [Claim 1] Insert the material to be dried of liquid such as water sludge evaporation tank, a drying device for drying by heating by a heating device, the superheated steam by adiabatic compression of the water vapor generated from the material to be dried , exchanges heat with the superheated steam and the material to be dried,
    過熱蒸気を冷却、凝縮せしめ、水蒸気が有する熱エネルギーを効率的に被乾燥物に伝達させることにより熱回収を行うことを特徴とする乾燥装置。 Cooling the superheated steam, condensate allowed, drying apparatus and performs heat recovery by transferring the heat energy of the steam to efficiently dried objects.
  2. 【請求項2】 請求項1に記載の乾燥装置において、蒸発槽を密閉構造とし、圧力検出器により蒸発槽内の圧力を検出し、蒸発槽内の圧力が設定圧力に等しくなるように被乾燥物から発生する水蒸気の蒸発槽からの排気速度を制御する。 2. A drying apparatus according to claim 1, the evaporation chamber as a sealed structure, detects the pressure in the evaporator tank by the pressure detector, the drying so that the pressure in the evaporation vessel is equal to the set pressure controlling the exhaust rate from the evaporation tank of water vapor generated from the object. 排気速度が設定した最高排気速度に達しても蒸発槽内の圧力が設定圧力より高い場合には加熱装置の加熱能力を低下させ、反対に排気速度が設定した最低排気速度に達しても蒸発槽内の圧力が設定圧力より低い場合には加熱装置の加熱能力を増加させるように制御する制御装置を設けた請求項1に記載の乾燥装置。 Reached the maximum pumping speed pumping speed is set to reduce the heating capacity of the heating device in the case the pressure in the evaporator tank is higher than the set pressure, the evaporation tank is reached the minimum pumping speed pumping speed is set to the opposite drying apparatus according to claim 1, wherein the pressure is provided with a control device for controlling so as to increase the heating capacity of the heating device is lower than the set pressure of the inner.
JP2001137955A 2001-03-30 2001-03-30 Drying equipment Pending JP2002303488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001137955A JP2002303488A (en) 2001-03-30 2001-03-30 Drying equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001137955A JP2002303488A (en) 2001-03-30 2001-03-30 Drying equipment

Publications (1)

Publication Number Publication Date
JP2002303488A true JP2002303488A (en) 2002-10-18

Family

ID=18984967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001137955A Pending JP2002303488A (en) 2001-03-30 2001-03-30 Drying equipment

Country Status (1)

Country Link
JP (1) JP2002303488A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009069735A1 (en) * 2007-11-29 2009-06-04 Kajima Corporation Evaporating-dehydrating apparatus
JP2009133512A (en) * 2007-11-29 2009-06-18 Kajima Corp Evaporation dehydrating apparatus
JP2009144946A (en) * 2007-12-12 2009-07-02 Kajima Corp Evaporating-dehydrating apparatus
KR101173950B1 (en) 2010-11-11 2012-08-16 한밭대학교 산학협력단 Drying equipment and method of high water content materials
KR101237340B1 (en) 2011-09-16 2013-02-28 한밭대학교 산학협력단 Drying system for high water content material using air compressor and drying method using the same
WO2015052759A1 (en) * 2013-10-07 2015-04-16 住友林業株式会社 System and method for treating vegetable oil effluent

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009069735A1 (en) * 2007-11-29 2009-06-04 Kajima Corporation Evaporating-dehydrating apparatus
JP2009133512A (en) * 2007-11-29 2009-06-18 Kajima Corp Evaporation dehydrating apparatus
JP2009144946A (en) * 2007-12-12 2009-07-02 Kajima Corp Evaporating-dehydrating apparatus
KR101173950B1 (en) 2010-11-11 2012-08-16 한밭대학교 산학협력단 Drying equipment and method of high water content materials
KR101237340B1 (en) 2011-09-16 2013-02-28 한밭대학교 산학협력단 Drying system for high water content material using air compressor and drying method using the same
WO2015052759A1 (en) * 2013-10-07 2015-04-16 住友林業株式会社 System and method for treating vegetable oil effluent

Similar Documents

Publication Publication Date Title
US6094835A (en) Heat pump dryer with desciccant enhanced moisture removal
CN1153942C (en) Sorption type heat pump and method for controlling same
JP3210807B2 (en) Method for using a condensing heat exchanger improves the removal efficiency of sulfur dioxide in flue gases and apparatus
US5587054A (en) Vapor compression distillation system
CN1184147C (en) Water distillation system
DE60127040T2 (en) Method and device for generating power from heat
JP2009197808A (en) Apparatus for producing power using geothermal fluid
JP2005016779A (en) Drier
US4209364A (en) Process of water recovery and removal
ES2386416T3 (en) Systems and methods for dehumidification
US5600967A (en) Refrigerant enhancer-absorbent concentrator and turbo-charged absorption chiller
EP1664647B1 (en) Heat pump type drying apparatus drying apparatus and drying method
JP3119718B2 (en) Low-pressure power generation method and apparatus
US4194296A (en) Vacuum drying kiln
JP2001317307A (en) Method of removing carbon dioxide from exhaust gas of gas turbine plant and device for carrying out the method
JP3594635B2 (en) Geothermal power plant operating on high pressure geothermal fluid
WO2005001357A1 (en) Drying system
JP2000500221A (en) The heat transfer device rotating
FR2510736A1 (en) Process for drying by steam recompression
CN100575842C (en) Drying device and its operating method
NO20061566L (en) Heat Pumped Orcs for clothes
CN201155907Y (en) Dryer
KR100315299B1 (en) Evaporative concentration apparatus for waste water
US4589890A (en) Heat recovery method and apparatus
CN100445518C (en) Method and device for the transfer of heat from a heat source to a thermodynamic circuit with a working medium of at least two substances with non-isothermal evaporation and condensation