EP3375510B1 - Stirring apparatus for synthetic particles and heating method therefor - Google Patents

Stirring apparatus for synthetic particles and heating method therefor Download PDF

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Publication number
EP3375510B1
EP3375510B1 EP16863669.4A EP16863669A EP3375510B1 EP 3375510 B1 EP3375510 B1 EP 3375510B1 EP 16863669 A EP16863669 A EP 16863669A EP 3375510 B1 EP3375510 B1 EP 3375510B1
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EP
European Patent Office
Prior art keywords
heat conductive
conductive pipe
mixing tank
primary heat
hot air
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.)
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Application number
EP16863669.4A
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German (de)
English (en)
French (fr)
Other versions
EP3375510A4 (en
EP3375510A1 (en
Inventor
Hongmei Bai
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Bai Hongmei
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Individual
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Publication of EP3375510A1 publication Critical patent/EP3375510A1/en
Publication of EP3375510A4 publication Critical patent/EP3375510A4/en
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Publication of EP3375510B1 publication Critical patent/EP3375510B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/60—Mixing solids with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers
    • B01F29/63—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers with fixed bars, i.e. stationary, or fixed on the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/752—Discharge mechanisms with arrangements for converting the mechanism from mixing to discharging, e.g. by either guiding a mixture back into a receptacle or discharging it
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/91—Heating or cooling systems using gas or liquid injected into the material, e.g. using liquefied carbon dioxide or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/99—Heating

Definitions

  • the present disclosure relates to a heating and mixing technology for composite particles, and more particularly, relates to a mixing plant for composite particles and a heating method of the mixing plant.
  • a requirement of the coal for the power generating boiler is extreme greater.
  • the fossil fuel such as coal discharges a large quantity of gas which causes a greenhouse effect and a large quantity of dust which cannot be eliminated. Therefore, a new green power "biofuel” is adopted to replace the fossil fuel such as the traditional coal.
  • the biofuel is transferred from condensed residual waste plant fiber of plants in general or commercial crops, such as halm, straw, weed tree, palm kernel shell, or coconut shell.
  • a conventional plant for composite particles generally requires a heating to the material therein.
  • the conventional heating methods includes: providing an electric heating tube in the mixing tank, performing a steaming and baking treatment to the whole mixing tank, and so on.
  • Such treatments may results problems such as a poor temperature controllability, an uneven heat to the material in the mixing tank, and a high improvement cost. Therefore, the prior mixing plant for composite particles requires a further improvement to the heating method.
  • EP 2 418 075 A2 discloses a device for producing biomass pellets that comprises a mixer.
  • the mixer comprises an open top vessel having a hollow shaft agitator rotatably mounted therein.
  • the hollow shaft agitator has a plurality of nozzles on its shaft from which hot air is injected into the vessel.
  • US 2015/0138908 A1 discloses a kneading device having a hopper that includes a stirring device and a temperature controlled air supply device for supplying air into the hopper body.
  • DE 2 102 328 discloses a mixing apparatus in which a bituminous-mineral mix is produced in a rotary furnace having a burner at one end firing into a first zone to which a mineral filler is delivered.
  • a heat conductive pipe which defines a plurality of hot air entrance holes operates to inhale hot air close to a heat source into an air communication passage constituted by a primary heat conductive pipe and the heat conductive pipe.
  • the primary heat conductive pipe is in communication with an inner chamber of a mixing tank, the hot air is introduced into the rotatable mixing tank by the primary heat conductive pipe, thereby achieving a heating, the heating method can provide a more homogeneous heating, and further causes the temperature in the mixing tank to be raised gradually, and enhances a controllability of the temperature in the mixing tank without additionally adding an electric heat tube circuit.
  • An improvement cost for adding a heating function to the plant which does not have a heating function is low.
  • a heat conduction and heat treatment of the whole mixing tank is eliminated, thereby a negative effect that causes damage to the housing of the mixing tank is avoided.
  • a mixing plant 200 for composite particles includes a rotatable mixing tank 230, a fixing bracket 240 for supporting aforementioned mixing tank 230, at least one heat conductive pipe 210, a primary heat conductive pipe 220, and a pneumatic valve 250.
  • the mixing tank 230 can be driven to rotate by a motor.
  • opposite ends of the mixing tank 230 are provided with tooth discs 231.
  • the tooth disc 231 is arranged along a peripheral direction of the end of the mixing tank 230.
  • the tooth disc 231 is connected to the motor via a gear transmission mechanism. After an electric drive, the mixing tank 230 is driven by the gear transmission mechanism to realize a rotation around a central axis of the mixing tank 230, thereby accomplishing a stirring of the materials in an inner chamber of the mixing tank.
  • aforementioned heat conductive pipe 210 defines a plurality of hot air entrance holes 211 on a sidewall thereof facing a heat source.
  • the primary heat conductive pipe 220 is in communication with an inner chamber of the mixing tank 230.
  • the primary heat conductive pipe 220 is in communication with the heat conductive pipe 210, the primary heat conductive pipe 220 and the heat conductive pipe 210 constitute an air communication passage.
  • the pneumatic valve 250 is located in the air communication passage.
  • the pneumatic valve 250 is configured to control an atmospheric pressure. When the atmospheric pressure in the air communication passage is too great, it can be detected by the pneumatic valve 250, and the pneumatic valve 250 is initiated to perform a decompression to the atmospheric pressure.
  • hot air close to a heat source can be inhaled into the air communication passage by the heat conductive pipe, and is introduced into the rotatable mixing tank by the primary heat conductive pipe, thereby achieving a heating, such heating method can provide a more homogeneous heating, and provide a drying treatment for the wet materials in the mixing tank.
  • the heat source mentioned here can be any devices which can provide a high temperature gas, such as a heating furnace.
  • the fixing bracket 240 includes at least two supporting walls 241, the supporting wall 241 defines a fixing hole which is provided for the at least one heat conductive pipe 210 extending through and fixing the heat conductive pipe to the fixing bracket 240.
  • the plurality of hot air entrance holes 211 are defined on a portion of the heat conductive pipe 210 which is located between the two supporting walls 241.
  • the two supporting walls 241 support the mixing tank 230 to create a distance from a supporting surface (e.g. the ground surface), the heat source (e.g. the heating furnace) is located within the distance, an occupying space can be saved, causing the plant to have a more compact structure.
  • both the primary heat conductive pipe 220 and the heat conductive pipe 210 have hollow tubular shapes.
  • the primary heat conductive pipe 220 and the heat conductive pipe 210 are parallel arranged, and arranged in parallel to an axis of the mixing tank 230.
  • the hollow tubular shape mentioned here in the illustrated embodiment can be a hollow tubular structure which has a cross-section of any shape, such as a hollow circular tube, a hollow tube having a trapezoidal cross-section, a hollow elliptical tube, a hollow square tube.
  • both the primary heat conductive pipe 220 and the heat conductive pipe 210 are hollow circular tubes.
  • a diameter of the primary heat conductive pipe 220 is greater than a diameter of the heat conductive pipe.
  • the primary heat conductive pipe 220 can also adopt a structure which has a plurality of heat exchange tubes. For example, a plurality of heat exchange tubes are located in the mixing tank to form a primary radiating tube, the plurality of heat exchange tubes are in communication with the heat conductive pipe 210 to form the air communication passage.
  • an end of the mixing tank 230 is provided with a sealing cover 280.
  • the sealing cover 280 defines a through hole thereon.
  • the primary heat conductive pipe 220 extends through the through hole and into the mixing tank 230.
  • the through hole of the sealing cover 280 is connected to the primary heat conductive pipe 220 via a bearing 270.
  • the primary heat conductive pipe is linked to the sealing cover 280 of the mixing tank for moving.
  • an end of the primary heat conductive pipe 220 extends into the mixing tank 230, and a portion of the primary heat conductive pipe 220 which extends into the mixing tank 230 defines at least one row of hot air exhaust holes 221 along a longitudinal direction.
  • the at least one row of hot air exhaust holes 221 is arranged along a longitudinal direction of the primary heat conductive pipe 220.
  • the portion of the primary heat conductive pipe 220 which extends into the mixing tank 230 can also define at least one loop of hot air exhaust holes 221 along a peripheral direction.
  • the pluralities of hot air exhaust holes 221 are mainly arranged to diffuse the hot air into the mixing tank rapidly, causing a heating to be more homogeneous.
  • a vertical height of the at least one heat conductive pipe is less than a vertical height of the primary heat conductive pipe.
  • the vertical height mentioned here indicates a distance between an axis of the heat conductive pipe or an axis of the primary heat conductive pipe and the supporting surface (e.g. the ground surface).
  • a hot air self-diffusion principle can be utilized to enable the hot air to be delivered and diffused automatically in the air communication passage, without adopting external force to diffuse the hot air in the air communication passage.
  • the air communication passage defines an exhaust through hole 291 and includes a first connecting tube 293, a second connecting tube 292, the at least one heat conductive pipe 210, and the primary heat conductive pipe 220.
  • the at least one heat conductive pipe 210 is in communication with the first connecting tube 293.
  • the first connecting tube 293 is in communication with the exhaust through hole 291.
  • the first connecting tube 293 is further in communication with the primary heat conductive pipe 220 via the second connecting tube 292.
  • the pneumatic valve 250 is positioned on the second connecting tube 292.
  • the first connecting tube 293 is a four-way adapter coupling, or a multi-way adapter coupling.
  • the first connecting tube 293 and the second connecting tube 292 can be fixed or supported by the bracket 260, so as to fixedly support an air communitarian passage assembly outside of the mixing tank 230.
  • the plant in order to accelerate a flowing of the hot air in the air communication passage, the plant further includes an air pump (not shown), the air pump is connected to the air communication passage, and configured to pump the hot air close to the heat source into the at least one heat conductive pipe via the hot air entrance holes, i.e. a negative pressure can be generated in the at least one heat conductive pipe by the air pump, thereby causing the hot air close to the heat source to be quickly inhaled into the at least one heat conductive pipe.
  • an air pump is connected to the air communication passage, and configured to pump the hot air close to the heat source into the at least one heat conductive pipe via the hot air entrance holes, i.e. a negative pressure can be generated in the at least one heat conductive pipe by the air pump, thereby causing the hot air close to the heat source to be quickly inhaled into the at least one heat conductive pipe.
  • the mixing tank 230 further includes a plurality of elongated members 232.
  • the plurality of elongated members 232 are arranged along an inner wall of the mixing tank 230 and spaced from each other, and the plurality of elongated members 232 are arranged in a spiral shape. Angles between each elongated member 232 and the axis of the mixing tank 230 are the same.
  • Each elongated member 232 extends from an end of the mixing tank 230 to an opposite end of the mixing tank 230.
  • the elongated member 232 When the mixing tank 230 rotates, the elongated member 232 follows and rotates to generate a wind force which blows into an inner of the mixing tank 230 and inhales composite particles from the entrance holes into the inner. When the mixing tank 230 rotates reversely, the elongated member 232 follows and rotates to generate a wind force which blows outside the mixing tank 230, and composite particles are outputted from outlets.
  • a mixing plant for composite particles is provided.
  • a heat conductive pipe which defines a plurality of hot air entrance holes, the hot air close to a heat source is inhaled into an air communication passage constituted by the primary heat conductive pipe and the heat conductive pipe.
  • the heating method can provide a more homogeneous heating, and further causes the temperature in the mixing tank to be raised gradually, and enhances a controllability of the temperature in the mixing tank without additionally adding an electric heat tube circuit.
  • An improvement cost for adding a heating function to the plant which does not have a heating function is low.
  • a heat conduction and heat treatment of the whole mixing tank is eliminated, thereby a negative effect that causes damage to the housing of the mixing tank is avoided.
  • a heating method of a mixing tank for composite particles which includes: hot air close to the heat source is sucked into an air communication passage constituted by the primary heat conductive pipe and the heat conductive pipe, by providing a heat conductive pipe which defines a plurality of hot air entrance holes; the primary heat conductive pipe is in communication with an inner chamber of the mixing tank, thereby the hot air is introduced into the rotatable mixing tank by the primary heat conductive pipe.
  • the structural configuration of the heat conductive pipe and the primary heat conductive pipe can be referred from aforementioned related illustration, and is not specific illustrated herein.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Road Paving Structures (AREA)
  • Drying Of Solid Materials (AREA)
EP16863669.4A 2015-11-10 2016-11-10 Stirring apparatus for synthetic particles and heating method therefor Active EP3375510B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510763207.9A CN105268354B (zh) 2015-11-10 2015-11-10 合成颗粒用搅拌设备及其加热方法
PCT/CN2016/105367 WO2017080493A1 (zh) 2015-11-10 2016-11-10 合成颗粒用搅拌设备及其加热方法

Publications (3)

Publication Number Publication Date
EP3375510A1 EP3375510A1 (en) 2018-09-19
EP3375510A4 EP3375510A4 (en) 2019-07-17
EP3375510B1 true EP3375510B1 (en) 2024-03-13

Family

ID=55138712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16863669.4A Active EP3375510B1 (en) 2015-11-10 2016-11-10 Stirring apparatus for synthetic particles and heating method therefor

Country Status (3)

Country Link
EP (1) EP3375510B1 (zh)
CN (1) CN105268354B (zh)
WO (1) WO2017080493A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105268354B (zh) * 2015-11-10 2018-09-14 柏红梅 合成颗粒用搅拌设备及其加热方法
CN108380108A (zh) * 2018-05-14 2018-08-10 辽宁科技大学 一种干颗粒混合机
CN110360581B (zh) * 2019-08-28 2020-08-11 扬州鑫科环保成套设备有限公司 Rto蓄热式焚烧炉燃烧室
CN110844411A (zh) * 2019-10-22 2020-02-28 穗农环保生物科技(深圳)有限公司 密封门机构及具有它的垃圾处理设备
CN114292986B (zh) * 2022-01-19 2023-09-08 郭金福 一种耐磨钢球控温回火集装箱

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE2102328A1 (de) * 1971-01-19 1972-08-03 Wibau Westdeutsche Industrie- Und Strassenbau-Maschinen-Gmbh, 6461 Rothenbergen Kombinierte Misch-, Trocknungs- und Erhitzungseinrichtung zur Aufbereitung bituminösen Mischgutes
US4198761A (en) * 1978-04-20 1980-04-22 Societe pour la Recherche, l'Etude et Mise au Point de Tous Brevets, S.O.R.E.B. Forced blowing method for fluids enabling thermal exchanges within a moving mass of material placed in a rotating cylinder

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CN2123046U (zh) * 1991-06-12 1992-11-25 胡建国 旋转干燥机
CN2237823Y (zh) * 1993-07-02 1996-10-16 阎广才 转桶式烘干机
JP3738416B2 (ja) * 1999-09-30 2006-01-25 宇部テクノエンジ株式会社 攪拌装置
JP2007175610A (ja) * 2005-12-27 2007-07-12 Sumitomo Chemical Co Ltd 通気回転装置
CN100496688C (zh) * 2007-05-10 2009-06-10 云南昆船设计研究院 一种滚筒式物料松散及增温增湿装置
US9326525B2 (en) * 2008-06-05 2016-05-03 Tsukasa Industry Co., Ltd. Kneading device
CN201361541Y (zh) * 2008-12-27 2009-12-16 黄吉宽 滚筒式加热搅拌机
DE102010036920A1 (de) * 2010-08-09 2012-02-09 Ullrich Heinz Vorrichtung und Verfahren zur Herstellung von Pellets aus Biomasse
CN203108484U (zh) * 2013-03-20 2013-08-07 长安大学 一种沥青拌合料的废气再利用装置
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CN105268354B (zh) * 2015-11-10 2018-09-14 柏红梅 合成颗粒用搅拌设备及其加热方法
CN205182601U (zh) * 2015-11-10 2016-04-27 柏红梅 合成颗粒用搅拌设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102328A1 (de) * 1971-01-19 1972-08-03 Wibau Westdeutsche Industrie- Und Strassenbau-Maschinen-Gmbh, 6461 Rothenbergen Kombinierte Misch-, Trocknungs- und Erhitzungseinrichtung zur Aufbereitung bituminösen Mischgutes
US4198761A (en) * 1978-04-20 1980-04-22 Societe pour la Recherche, l'Etude et Mise au Point de Tous Brevets, S.O.R.E.B. Forced blowing method for fluids enabling thermal exchanges within a moving mass of material placed in a rotating cylinder

Also Published As

Publication number Publication date
EP3375510A4 (en) 2019-07-17
CN105268354B (zh) 2018-09-14
WO2017080493A1 (zh) 2017-05-18
CN105268354A (zh) 2016-01-27
EP3375510A1 (en) 2018-09-19

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