WO2023044843A1 - 一种颗粒肥料高效快速烘干机及烘干方法 - Google Patents

一种颗粒肥料高效快速烘干机及烘干方法 Download PDF

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WO2023044843A1
WO2023044843A1 PCT/CN2021/120585 CN2021120585W WO2023044843A1 WO 2023044843 A1 WO2023044843 A1 WO 2023044843A1 CN 2021120585 W CN2021120585 W CN 2021120585W WO 2023044843 A1 WO2023044843 A1 WO 2023044843A1
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drying
air
drum
heating furnace
drying drum
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PCT/CN2021/120585
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English (en)
French (fr)
Inventor
王仁宗
吴初柱
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湖北富邦科技股份有限公司
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Priority claimed from CN202122300315.6U external-priority patent/CN215809855U/zh
Priority claimed from CN202111113799.1A external-priority patent/CN113670033A/zh
Application filed by 湖北富邦科技股份有限公司 filed Critical 湖北富邦科技股份有限公司
Publication of WO2023044843A1 publication Critical patent/WO2023044843A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
    • F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
    • F26B11/0486—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements being held stationary, e.g. internal scraper blades
    • 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
    • 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
    • F26B23/00—Heating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating

Definitions

  • the invention relates to the technical field of drying granular fertilizers, in particular to a high-efficiency and fast drying machine for granular fertilizers and a drying method.
  • the main purpose of the present invention is to provide a high-efficiency and fast drying machine and drying method for granular fertilizers.
  • the granular fertilizers are in different motion states in the three sections of the drying drum to prevent particle damage. Drying is carried out under dry conditions, the drying efficiency is high, the particle yield is high, the hot air is recycled, and the energy saving and environmental protection are efficient, which can effectively solve the problems in the background technology.
  • a high-efficiency and rapid dryer for granular fertilizers including a base, a drying drum, an air duct and a dust collector, is characterized in that: a heating furnace is arranged on the upper end of the base, and there are several burners on the heating furnace, and each burner The mouth is connected with the gas pipeline and the air pipeline respectively, the gas pipeline is connected with the gas, and the air pipeline is connected with the air; there is a drying drum inside the heating furnace, and the left end of the drying drum is provided with a feed port and a motor, and the motor controls the drying process.
  • the drying drum rolls the right end of the drying drum is provided with a discharge port, the upper left end of the heating furnace is provided with an air outlet pipe, and the air outlet pipe is provided with an induced fan, the air outlet of the induced fan is connected to the inside of the right end of the drying drum, and the top left end of the drying drum There is a drum outlet pipe, and a drum induced fan is installed on the drum outlet pipe.
  • the outlet of the drum induced fan is connected to the dust collector.
  • the air distribution valve and the air induction pipe are connected to the inside of the right end of the drying drum through the three-way air distribution valve.
  • the inner wall of the drying drum is provided with a number of spiral guide grooves, a number of direct lifting boards and a number of hook-shaped lifting boards, and the spiral material guide grooves are arranged in the front/part of the drying drum, and the direct lifting boards are arranged in the middle/part of the drying drum , the hook-shaped lifting board is set behind/part of the drying drum.
  • the first section of the spiral guide groove, the wet particles move along the spiral guide groove, and the movement is relatively gentle, which reduces the risk of breaking the wet particles during the drying process;
  • the second section of the direct copying plate makes the particles have a certain rolling force to achieve a certain change Thermal efficiency;
  • the third hook-shaped lifting plate makes the particles fully tumbling and improves the heat transfer efficiency.
  • the three-way air distribution valve has an air discharge valve or an air inlet valve, which can adjust the air volume of the air outlet pipe of the dust collector into the drying drum.
  • a drying method of a high-efficiency and fast drying machine for granular fertilizer characterized in that it comprises the following steps:
  • the temperature of the burner in the step (2) is 100-500°C.
  • the invention has the advantages of easy manufacture, convenient use, high drying efficiency, high particle yield, hot air recycling, high efficiency, energy saving and environmental protection, specifically: (1)
  • the inner wall of the drying drum has a spiral material guide groove and a direct copying plate , hook-shaped copy board.
  • the wet particles move along the spiral guide groove, and the movement is relatively gentle, which reduces the risk of breaking the wet particles during the drying process;
  • the second section of the direct copying board makes the particles have a certain rolling force to achieve a certain change Thermal efficiency;
  • the third hook-shaped lifting plate makes the particles fully tumbling and improves the heat exchange efficiency;
  • Fig. 1 is a structural representation of the present invention
  • the present invention provides a high-efficiency and rapid dryer for granular fertilizers, comprising a base 1, a drying drum 7, an air duct 14 and a dust collector 18, and is characterized in that a heating furnace 2 is arranged on the upper end of the base , there are several burners 3 on the heating furnace, and each burner is connected with the gas pipeline 4 and the air pipeline 5 respectively, the gas pipeline 4 is connected with the gas, and the air pipeline 5 is connected with the air; Fan 6, a drying drum 7 is arranged inside the heating furnace, the left end of the drying drum is provided with a feed port 8 and a motor 9, the motor 9 controls the rolling of the drying drum 7, and the right end of the drying drum is provided with a discharge port 10, the heating furnace The upper left end is provided with an air outlet pipe 14, and the air outlet pipe 14 at the upper right of the heating furnace is provided with an induced draft fan 15, and the air outlet of the induced draft fan 15 is connected to the inside of the right end of the drying drum, and the top left end of the drying drum is
  • the inner wall of the drying drum is provided with a number of spiral guide grooves 11, a number of direct lifting plates 12 and a number of hook-shaped lifting plates 13, and the spiral material guide grooves 11 are arranged in the front 1/3 part of the drying drum, and the direct lifting plates 12 are arranged In the middle 1/3 part of the drying drum, the hook-shaped lifting plate 13 is arranged on the rear 1/3 part of the drying drum.
  • the three-way air distribution valve has an air discharge valve or an air inlet valve, which can adjust the air volume of the air outlet pipe of the dust collector into the drying drum.
  • a drying method of a high-efficiency and fast dryer for granular fertilizers comprising the following steps:
  • the granular fertilizer to be dried is fed into the drying drum through the feed end, and the three sections of the drying drum are in different motion states, and the drying is carried out under the double drying conditions of heat transfer and hot air circulation on the wall of the drying drum.
  • the details are as follows: energize the body, open the drum induced draft fan 17 of the drying drum, the induced draft fan 15 of the heating furnace, the circulation fan 6 of the heating furnace, the dust collector 18, open the motor 9 of the drying drum, and let the drying drum rotate.
  • the burner 3 of the heating furnace is ignited, and the temperature of the burner is 500°C.
  • the granular fertilizer to be dried is fed into the drying drum 7 through the feed port 8, and the granular fertilizer is in the first section of the drying drum.
  • the movement of the spiral guide groove is relatively gentle, which reduces the risk of breaking the wet particles during the drying process; when moving to the second section of the direct copying plate 12, the particles have a certain rolling force and achieve a certain heat exchange efficiency; when moving to the third section of the hook shape
  • the lifting plate 13 the particles are fully rolled, and the heat exchange efficiency is further improved; at the same time, the hot air of the heating furnace enters the tail end of the drying drum 7 through the air outlet pipe 14 of the heating furnace under the action of the induced draft fan 15, and performs countercurrent drying; the exhaust gas of the drying drum 7 Under the action of the drum induced fan 17, it passes through the drum outlet pipe 16, enters the dust collector 18, and enters the tail end of the drying drum 7 through the three-way air distribution valve 20, further countercurrent drying, and supplements the air intake of the drying drum.
  • the heating furnace conducts heat to the wall of the drying drum, and at the same time, the heated tail gas is transported into the drying drum 7 through the induced draft fan 15 to perform countercurrent drying on the fertilizer, and the exhaust gas of the drying drum passes through the drum induced draft fan 17
  • the clean hot air processed by the dust collector 18 enters the drying drum 7 for countercurrent drying again, and the hot air is recycled, and the thermal efficiency is very high.
  • the drying efficiency is improved, the particle yield is high, the hot air is recycled, and it is highly efficient, energy-saving and environmentally friendly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

一种颗粒肥料高效快速烘干机及烘干方法，该烘干机的底座(1)上端设有加热炉(2)，加热炉(2)上有若干个烧嘴(3)，每个烧嘴(3)分别与燃气管线(4)和空气管线(5)相连接，加热炉(2)内部设有一个烘干滚筒(7)，烘干滚筒(7)左端设有进料口(8)和电机(9)，电机(9)控制烘干滚筒(7)滚动，烘干滚筒(7)右端设有出料口(10)，加热炉(2)左上端设有出风管(14)，出风管(14)上设有引风机(15)，引风机(15)出风口连接到烘干滚筒(7)右端内部，烘干滚筒(7)左端顶端设有滚筒出风管(16)，滚筒出风管(16)上设有滚筒引风机(17)，滚筒引风机(17)出风口连接到除尘器(18)，除尘器(18)出口端设有引风管(19)及三通分风阀(20)，引风管(19)通过三通分风阀(20)连接到烘干滚筒(7)右端内部。在烘干滚筒(7)筒壁加热和热风对流换热的双重烘干情况下，提高了烘干效率，热风得以循环利用，高效节能环保。

Description

一种颗粒肥料高效快速烘干机及烘干方法 技术领域
本发明涉及颗粒肥料烘干技术领域，具体涉及一种颗粒肥料高效快速烘干机及烘干方法。
背景技术
现有技术中，为便于肥料的储存，在肥料造粒后需要采用热风炉进行烘干，以将肥料多余水分去除，将水分降至一定范围以内，防止肥料结块，同时达到符合要求的颗粒强度，避免运输过程中颗粒肥料破碎。现有的肥料烘干装置有烘干滚筒、流化床，但存在烘干效率不高以及颗粒肥料破损率高等方面影响。
发明内容
本发明的主要目的在于提供一种颗粒肥料高效快速烘干机及烘干方法，颗粒肥料在烘干滚筒三段处于不同运动状态防止颗粒破损，在烘干滚筒筒壁热传递和热风循环双重烘干情况下进行烘干，烘干效率高，颗粒收得率高，热风循环利用，高效节能环保，可以有效解决背景技术中的问题。
为实现上述目的，本发明采取的技术方案是：
一种颗粒肥料高效快速烘干机，包括底座、烘干滚筒、引风管和除尘器，其特征在于：所述底座的上端设有加热炉，加热炉上有若干个烧嘴，每个烧嘴分别与燃气管线和空气管线相连接，燃气管线与燃气相连接，空气管线与空气相连接；加热炉内部设有一个烘干滚筒，烘干滚筒左端设有进料口和电机，电机控制烘干滚筒滚动，烘干滚筒右端设有出料口，加热炉左上端设有出风管，出风管上设有引风机，引风机出风口连接到烘干滚筒右端内部，烘干滚筒左端顶端设有滚筒出风管，滚筒出风管上设有滚筒引风机，滚筒引风机出风口连接到除尘器，烘干滚筒右侧设有除尘器，除尘器出口端设置有引风管及三通分风阀，引风管通过三通分风阀连接到烘干滚筒右端内部。
在加热炉上部设有若干循环风机。
所述烘干滚筒内壁设有若干螺旋导料槽、若干直抄板和若干钩形抄板，且螺 旋导料槽设置在烘干滚筒前/部分，直抄板设置在烘干滚筒中间/部分，钩形抄板设置在烘干滚筒后/部分。第一段螺旋导料槽，湿颗粒沿着螺旋导料槽运动，运动较平缓，减少湿颗粒烘干过程中摔碎风险；第二段直抄板，使颗粒有一定翻滚力度，达到一定换热效率；第三段钩形抄板，使颗粒充分翻滚，提高换热效率。
所述三通分风阀带有卸风阀或进风阀，能调节除尘器出风管进烘干滚筒的风量。
一种颗粒肥料高效快速烘干机的烘干方法，其特征在于包括以下步骤：
(1)开启滚筒引风机、加热炉的引风机、加热炉的循环风机、除尘器和电机；
(2)加热炉烧嘴点火；
(3)将待烘干的颗粒肥料通过进料口加入烘干滚筒，在烘干滚筒三段处于不同运动状态下，在烘干滚筒筒壁热传递和热风循环双重烘干情况下对颗粒肥料进行烘干。
所述步骤(2)烧嘴温度在100-500℃。
本发明的优点在于，制造容易，使用方便，烘干效率高，颗粒收得率高，热风循环利用，高效节能环保，具体为：(1)烘干滚筒内壁有螺旋导料槽、直抄板、钩形抄板。第一段螺旋导料槽，湿颗粒沿着螺旋导料槽运动，运动较平缓，减少湿颗粒烘干过程中摔碎风险；第二段直抄板，使颗粒有一定翻滚力度，达到一定换热效率；第三段钩形抄板，使颗粒充分翻滚，提高换热效率；(2)加热炉对烘干滚筒壁加热传导，同时加热尾气通过引风机输送进烘干滚筒对肥料进行逆流干燥，烘干滚筒尾气再通过滚筒引风机经除尘器处理后的干净热空气再进入烘干滚筒进行再次逆流干燥，将热空气循环利用，热效率非常高。通过烘干滚筒筒壁加热和热风对流换热双重烘干，提高了烘干效率，颗粒收得率高，热风循环利用，高效节能环保。
附图说明
图1是本发明的结构示意图；
图中：1－底座，2－加热炉，3－烧嘴，4－燃气管线，5－空气管线，6－循环风机，7－烘干滚筒，8－进料口，9－电机，10－出料口，11－螺旋导料槽， 12－直抄板，13－钩形抄板，14－出风管，15－引风机，16－滚筒出风管，17－滚筒引风机，18－除尘器，19－引风管，20－三通分风阀。
具体实施方式
为使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施方式，进一步阐述本发明。
请参阅图1，本发明提供一种颗粒肥料高效快速烘干机，包括底座1、烘干滚筒7、引风管14和除尘器18，其特征在于：所述底座的上端设置有加热炉2，加热炉上有若干个烧嘴3，每个烧嘴分别与燃气管线4和空气管线5相连接，燃气管线4与燃气相连接，空气管线5与空气相连接；加热炉上部设有若干循环风机6，加热炉内部设置着一个烘干滚筒7，烘干滚筒左端设有进料口8和电机9，电机9控制烘干滚筒7滚动，烘干滚筒右端设有出料口10，加热炉左上端设有出风管14，加热炉右上方的出风管14上设有引风机15，引风机15出风口连接到烘干滚筒右端内部，烘干滚筒左端顶端设有滚筒出风管16，烘干滚筒左上边的滚筒出风管16上设有滚筒引风机17，滚筒引风机17出风口连接到除尘器18，烘干滚筒右侧设有除尘器18，除尘器18出口端设置有引风管19及三通分风阀20，引风管19通过三通分风阀20连接到烘干滚筒右端内部。所述烘干滚筒内壁设有若干螺旋导料槽11、若干直抄板12和若干钩形抄板13，且螺旋导料槽11设置在烘干滚筒前1/3部分，直抄板12设置在烘干滚筒中间1/3部分，钩形抄板13设置在烘干滚筒后1/3部分。所述三通分风阀带有卸风阀或进风阀，能调节除尘器出风管进烘干滚筒的风量。
一种颗粒肥料高效快速烘干机的烘干方法，包括以下步骤：
(1)给机体通电，开启烘干滚筒引风机、加热炉引风机、加热炉循环风机、除尘器，开启烘干滚筒电机；
(2)加热炉烧嘴点火，烧嘴温度500℃；
(3)将待烘干的颗粒肥料通过进料端加入烘干滚筒，在烘干滚筒三段处于不同运动状态，在烘干滚筒筒壁热传递和热风循环双重烘干情况下进行烘干。
具体如下：给机体通电，开启烘干滚筒的滚筒引风机17，加热炉的引风机15，加热炉的循环风机6，除尘器18，开启烘干滚筒的电机9，让烘干滚筒转动 起来，加热炉烧嘴3点火，烧嘴温度500℃，将待烘干的颗粒肥料通过进料口8加入烘干滚筒7，颗粒肥料在烘干滚筒第一段螺旋导料槽11，湿颗粒沿着螺旋导料槽运动，运动较平缓，减少湿颗粒烘干过程中摔碎风险；运动到第二段直抄板12，颗粒有一定翻滚力度，达到一定换热效率；运动到第三段钩形抄板13，颗粒充分翻滚，换热效率进一步提高；同时，加热炉热风在引风机15作用下通过加热炉的出风管14进入烘干滚筒7尾端，进行逆流干燥；烘干滚筒7尾气在滚筒引风机17作用下通过滚筒出风管16，进入除尘器18，通过三通分风阀20进入烘干滚筒7尾端，进一步逆流干燥，以及补充烘干滚筒进风量。本发明的颗粒肥料高效快速烘干机，加热炉对烘干滚筒壁加热传导，同时加热尾气通过引风机15输送进烘干滚筒7对肥料进行逆流干燥，烘干滚筒尾气再通过滚筒引风机17经除尘器18处理后的干净热空气再进入烘干滚筒7进行再次逆流干燥，将热空气循环利用，热效率非常高。通过烘干滚筒筒壁加热和热风对流换热双重烘干，提高了烘干效率，颗粒收得率高，热风循环利用，高效节能环保。
以上只通过说明的方式描述了本发明的某些示范性实施例，毋庸置疑，对于本领域的普通技术人员，在不偏离本发明的精神和范围的情况下，可以用各种不同的方式对所描述的实施例进行修正。因此，上述附图和描述在本质上是说明性的，不应理解为对本发明权利要求保护范围的限制。

Claims (6)

  1. 一种颗粒肥料高效快速烘干机，包括底座(1)、烘干滚筒(7)、引风管(14)和除尘器(18)，其特征在于：所述底座的上端设有加热炉(2)，加热炉上有若干个烧嘴(3)，每个烧嘴分别与燃气管线(4)和空气管线(5)相连接，燃气管线(4)与燃气相连接，空气管线(5)与空气相连接；加热炉内部设有一个烘干滚筒(7)，烘干滚筒左端设有进料口(8)和电机(9)，电机(9)控制烘干滚筒(7)滚动，烘干滚筒右端设有出料口(10)，加热炉左上端设有出风管(14)，出风管(14)上设有引风机(15)，引风机(15)出风口连接到烘干滚筒右端内部，烘干滚筒左端顶端设有滚筒出风管(16)，滚筒出风管(16)上设有滚筒引风机(17)，滚筒引风机(17)出风口连接到除尘器(18)，烘干滚筒右侧设有除尘器(18)，除尘器(18)出口端设置有引风管(19)及三通分风阀(20)，引风管(19)通过三通分风阀(20)烘干滚筒右端内部。
  2. 根据权利要求1所述的一种颗粒肥料高效快速烘干机，其特征在于：在加热炉(2)上部设有若干循环风机(6)。
  3. 根据权利要求1所述的一种颗粒肥料高效快速烘干机，其特征在于：所述烘干滚筒内壁设有若干螺旋导料槽(11)、若干直抄板(12)和若干钩形抄板(13)，且螺旋导料槽(11)设置在烘干滚筒前1/3部分，直抄板(12)设置在烘干滚筒中间1/3部分，钩形抄板(13)设置在烘干滚筒后1/3部分。
  4. 根据权利要求1所述的一种颗粒肥料高效快速烘干机，其特征在于：所述三通分风阀带有卸风阀或进风阀，能调节除尘器出风管进烘干滚筒的风量。
  5. 利用根据权利要求1-4之一所述的一种颗粒肥料高效快速烘干机的烘干方法，其特征在于包括以下步骤：
    (1)开启滚筒引风机、加热炉的引风机、加热炉的循环风机、除尘器和电机；
    (2)加热炉烧嘴点火；
    (3)将待烘干的颗粒肥料通过进料口加入烘干滚筒，在烘干滚筒三段处于不同运动状态下，在烘干滚筒筒壁热传递和热风循环双重烘干情况下对颗粒肥料进行烘干。
  6. 根据权利要求1所述的一种颗粒肥料高效快速烘干机的烘干方法，其特征在于：所述步骤(2)烧嘴温度在100-500℃。
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