WO2013029197A1 - 辐射式加热炉体的进出风热交换系统 - Google Patents

辐射式加热炉体的进出风热交换系统 Download PDF

Info

Publication number
WO2013029197A1
WO2013029197A1 PCT/CN2011/001439 CN2011001439W WO2013029197A1 WO 2013029197 A1 WO2013029197 A1 WO 2013029197A1 CN 2011001439 W CN2011001439 W CN 2011001439W WO 2013029197 A1 WO2013029197 A1 WO 2013029197A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchange
inlet
heating furnace
furnace body
radiant heating
Prior art date
Application number
PCT/CN2011/001439
Other languages
English (en)
French (fr)
Inventor
刘建军
胡旭波
汪彪
Original Assignee
上海北玻玻璃技术工业有限公司
洛阳北方玻璃技术股份有限公司
上海北玻镀膜技术工业有限公司
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 上海北玻玻璃技术工业有限公司, 洛阳北方玻璃技术股份有限公司, 上海北玻镀膜技术工业有限公司 filed Critical 上海北玻玻璃技术工业有限公司
Priority to PCT/CN2011/001439 priority Critical patent/WO2013029197A1/zh
Publication of WO2013029197A1 publication Critical patent/WO2013029197A1/zh

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/02—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a discontinuous way
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D99/0035—Heating indirectly through a radiant surface

Definitions

  • the invention relates to a heating furnace body of a glass tempering unit, in particular to a radiant heating furnace body used in a glass tempering unit.
  • the radiant heating furnace body used in the glass tempering unit directly injects fresh compressed gas into the furnace, and the fresh air is pushed by the fresh air to achieve the purpose of heating balance in the furnace.
  • the invention provides an inlet and outlet air heat exchange system of a radiant heating furnace body, which can make the compressed air injected into the furnace into a high temperature gas and reduce energy consumption.
  • An inlet and outlet air heat exchange system for a radiant heating furnace body comprising: a sealed heat exchange box, wherein the heat exchange box is provided with a hot air inlet and a hot air outlet, the hot air inlet and the radiant heating The furnace body is connected to the furnace chamber, and the hot air outlet is connected to the air inlet of a centrifugal fan; the heat exchange box is also provided with a plurality of heat exchange tubes, and one end of the heat exchange tube is connected with the cold air source. The other end is connected to the furnace of the radiant heating furnace body.
  • the heat exchange box is further provided with a plurality of partitions, and the communication path between the hot air inlet and the hot air outlet is divided into a bypass path.
  • the heat exchange case, the separator, and the metal parts in the heat exchange tube are all made of heat resistant steel.
  • Each heat exchange tube adopts a roundabout shape.
  • Each heat exchange tube is a corrugated steel tube.
  • each heat exchange tube There is also a sub-cylinder, and the sub-cylinder is connected with one end of each heat exchange tube through a gas branch, and each gas branch is provided with an electromagnetic on-off valve and a pressure reducing valve, and each heat exchange tube The other end is connected to different locations in the furnace of the radiant heating furnace.
  • the motor of the centrifugal fan is connected to a speed controller.
  • the speed controller is a frequency converter.
  • a layer of heat resistant material is disposed in the box plate of the heat exchange box.
  • the heat resistant material is lCrl 8Ni9.
  • the high-temperature gas in the furnace is extracted by the centrifugal fan, which can balance the pressure inside and outside the furnace, which is conducive to production safety.
  • the motor for the centrifugal fan is adjusted by the speed controller to adjust the amount of pumping.
  • the fresh air is quantitatively transported to different positions of the furnace through a plurality of gas branches, and the air flow and pressure at different positions in the furnace can be controlled, thereby controlling the heating speed.
  • FIG. 1 is a schematic view showing the overall structure of an inlet and outlet air heat exchange system of a radiant heating furnace body provided by the present invention
  • FIG. 2 is a schematic view showing the working state of the heat exchanger provided by the present invention.
  • FIG. 3 is a schematic structural view of a heat exchange tube provided by the present invention.
  • FIG. 4 is a schematic view of a high temperature resistant structure provided by the present invention. detailed description
  • the present invention provides an inlet and outlet air heat exchange system of a radiant heating furnace body, which comprises a sealed heat exchange box 5, which is provided with a hot air inlet 51 and Hot air outlet
  • the hot air inlet 51 communicates with a furnace (not shown) of the radiant heating furnace body, and the hot air outlet 52 communicates with an air inlet of a centrifugal fan 4; There are multiple partitions
  • the communication path between the hot air inlet 51 and the hot air outlet 52 is divided into a bypass path to prolong the heat exchange time of the hot air in the heat exchange box 5.
  • the heat exchange box 5 is also provided with a plurality of heat exchange tubes 6, the heat exchange tube 6-end is connected to the cold air source, and the other end is connected to the furnace of the radiant heating furnace body.
  • each of the heat exchange tubes 6 preferably adopts a meandering shape to extend the heat exchange time of the cold air in the heat exchange tubes 6 in the heat exchange tubes 5; moreover, each of the heat exchange tubes 6 is preferably a corrugated steel tube. In order to improve Its heat exchange efficiency.
  • each gas branch 11 is provided with an electromagnetic on-off valve 2 and a pressure reducing valve 3, and the other end of each heat exchange tube 6 is connected to different positions in the furnace of the radiant heating furnace body. In this way, by controlling the on and off of each gas branch 11 and the amount of intake air, it is possible to control the amount of intake air at different positions in the furnace.
  • the motor of the centrifugal fan 4 is also connected to a speed controller 7 (such as a frequency converter), so that the amount of hot air in the furnace can be easily controlled.
  • a speed controller 7 such as a frequency converter
  • the heat exchange box 5, the partition 53 and the metal parts in the heat exchange tube 6 are made of heat-resistant steel, and the box plate of the heat exchange box 5 is provided.
  • a layer of heat-resistant material 54 material lCrl 8Ni9 is provided to prevent heat loss and improve the safety performance of the heat exchange box 5.
  • the compressed air is compressed by the compressor (existing components) and enters the sub-cylinder 1 through which the sub-cylinder 1 passes through each gas branch 11
  • the electromagnetic on-off valve 2 and the pressure reducing valve 3 enter the respective heat exchange tubes 6, and then heat exchange is completed in the heat exchange chamber 5.
  • the centrifugal fan 4 is operated to form a negative pressure in the heat exchange casing 5, thereby extracting a part of the high temperature gas in the furnace, and allowing the high temperature gas to enter the heat exchange tank 5 from the hot air inlet 51, and then The hot air outlet 52 of the heat exchange case 5 is discharged; during this time, the high temperature gas and the fresh air complete heat exchange in the heat exchange case 5.
  • the fresh air is heated by the high temperature gas into a warm hot gas, and enters the furnace through the heat exchange tube 6; the high temperature air extracted from the furnace is cooled, and then passes through the hot air outlet of the heat exchange box 5. 52 is discharged with the centrifugal fan 4.
  • the air inlet amount of different parts in the furnace can be controlled by the adjustment of the electromagnetic on-off valve 2 and the pressure reducing valve 3 on each gas branch 11; the total temperature of the furnace can also be controlled by adjusting the above-mentioned speed controller The amount of air.
  • the high-temperature gas in the furnace is extracted by the centrifugal fan, which can balance the pressure inside and outside the furnace, which is conducive to production safety.
  • the motor used for the centrifugal fan 4 is adjusted by the speed controller to adjust the amount of pumping. 4.
  • the fresh air is quantitatively transported to different positions of the furnace through a plurality of gas branches, and the air flow and pressure at different positions in the furnace can be controlled, thereby realizing the control of the heating speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Furnace Details (AREA)

Abstract

一种辐射式加热炉体的进出风热交换系统，其包括一个密闭的换热箱体（5），该换热箱体设有热空气入口（51）和热空气出口（52），该热空气入口（51）与辐射式加热炉体的炉膛内连通，该热空气出口（52）与一个离心风机（4）的入风口相连通；该换热箱体（5）内还穿设有多根热交换管（6），该热交换管（6）一端与冷空气气源相连通，另一端连通至辐射式加热炉体的炉膛内。由于空气利用炉腔排出的余热加热，再进入炉腔，可以降低升温所需能耗；同时，通过离心风机将炉膛内高温气体抽出，可以使炉体内外气压平衡，有利于生产安全。

Description

辐射式加热炉体的进出风热交换系统 技术领域
本发明涉及一种玻璃钢化机组的加热炉体， 特别涉及一种玻璃钢化机组所 使用的辐射式加热炉体。 背景技术
目前， 玻璃钢化机组中所使用的辐射式加热炉体， 是直接将新鲜的压缩气 体注入炉膛中， 并通过该新鲜空气推动炉膛内高温气体的流动， 以达到炉膛内 加热平衡的目的。
但是， 炉膛中注入新鲜空气后， 会使得炉膛内气温降低， 额外增加能耗， 并且只往炉膛内输入气体， 而没有排气通道， 使得炉膛内气压过大， 使得高温 气体从炉膛内各个缝隙排出， 不利于玻璃的加热， 也使得加热炉体周围环境发 生变化， 不利于安全生产。 发明内容
本发明提供一种辐射式加热炉体的进出风热交换系统， 可以使注入炉膛内 的压缩空气变成高温气体， 减少能耗。
为实现上述目的， 本发明釆用的技术方案是：
一种辐射式加热炉体的进出风热交换系统， 其特征在于： 包括一个密闭的 换热箱体， 该换热箱体设有热空气入口与热空气出口， 该热空气入口与辐射式 加热炉体的炉膛内连通， 该热空气出口则与一个离心风机的入风口相连通； 该 换热箱体内还穿设有多根热交换管， 该热交换管一端与冷空气气源相连通， 另 一端连通至辐射式加热炉体的炉膛内。
该换热箱体内还设有多块隔板， 将该热空气入口与该热空气出口之间的连 通路线分隔为迂回路径。
该换热箱体、 隔板以及热交换管中的金属件均由耐热钢制成。
各热交换管均采用迂回造型。
各热交换管均是波纹钢管。
还设有一个分气缸， 该分气缸与每个热交换管的一端之间均通过一个气体 支路相连通， 每个气体支路上设有一个电磁开关阀与一个减压阀， 各热交换管 的另一端则连通至辐射式加热炉体的炉膛内不同位置。
该离心风机的电机与一个调速控制器相连。
该调速控制器是变频器。
在该换热箱体的箱板内设有一层耐热材料层。
该耐热材料是 lCrl 8Ni9。
与现有技术相比较， 采用上述技术方案的本发明具有的优点在于：
1、 由于新鲜空气经过初步加热再进入炉膛， 可以降低升温所需的能耗。
2、 通过离心式风机将炉膛内高温气体抽出， 可以使炉体内外气压平衡， 有 利于生产安全。
3、 离心风机用的电机通过调速控制器调节， 可调节抽气量的大小。
4、 通过多个气体支路将新鲜空气定量地输送到炉膛的各个不同位置， 可以 控制炉膛内不同位置的空气流量和压力， 从而实现对加热速度的控制。 附图说明
图 1是本发明提供的一种辐射式加热炉体的进出风热交换系统的整体结构 示意图；
图 2是本发明提供的热交换器的工作状态示意图；
图 3是本发明提供的热交换管的结构示意图；
图 4是本发明提供的耐高温结构示意图。 具体实施方式
如图 1、 图 2所示， 本发明提供一种辐射式加热炉体的进出风热交换系统， 其包括一个密闭的换热箱体 5 , 该换热箱体 5设有热空气入口 51与热空气出口
52 , 该热空气入口 51与辐射式加热炉体的炉膛 （未予图示） 内连通， 该热空气 出口 52则与一个离心风机 4的入风口相连通； 该换热箱体 5内还设有多块隔板
53 , 将该热空气入口 51与该热空气出口 52之间的连通路线分隔为迂回路径， 以延长热空气在换热箱体 5内的换热时间。 该换热箱体 5内还穿设有多根热交 换管 6, 该热交换管 6—端与冷空气气源相连通， 另一端连通至辐射式加热炉体 的炉膛内。
如图 3所示， 各热交换管 6优选采用迂回造型， 以延长热交换管 6内冷空 气在换热箱体 5内的换热时间； 而且， 各热交换管 6最好是波纹钢管， 以提高 其热交换效率。
如图 1所示， 为了实现炉膛内各部分温度的单独控制， 本发明还设有一个 分气缸 1， 该分气缸 1与每个热交换管 6的一端之间均通过一个气体支路 1 1相 连通， 每个气体支路 11上设有一个电磁开关阀 2与一个减压阀 3 , 各热交换管 6的另一端则连通至辐射式加热炉体的炉膛内不同位置。 如此一来， 通过控制各 气体支路 11的通断以及进气量大小， 可以控制炉膛内不同位置的进风量。
该离心风机 4的电机还与一个调速控制器 7 (如变频器）相连， 从而可以方 便地控制炉膛内热空气的抽气量。
而为了保证上述换热结构的耐热性能， 该换热箱体 5、 隔板 53以及热交换 管 6中的金属件均由耐热钢制成， 而且在该换热箱体 5的箱板内设有一层耐热 材料层 54 (材料为 lCrl 8Ni9 ) , 可以防止热量流失， 并提高该换热箱体 5的安 全性能。
在了解本发明的结构之后， 再结合附图阐述本发明的使用过程如下： 压缩空气由压缩机 （现有部件） 压缩后进入分气缸 1中， 由分气缸 1经由 各气体支路 1 1通过电磁开关阀 2和减压阀 3进入各热交换管 6中， 然后在换热 箱体 5内完成换热。
与此同时， 离心风机 4运转， 使换热箱体 5内形成负压， 从而将炉膛内的 高温气体抽出一部分， 并使该高温气体从热空气入口 51进入换热箱体 5内， 然 后从换热箱体 5的热空气出口 52排出； 在此期间， 高温气体与新鲜空气在换热 箱体 5内完成换热。
能量交换完毕后， 新鲜空气被高温气体加热成暖热气体， 并经由该热交换 管 6进入炉膛内； 而从炉膛内抽出的高温空气则被冷却， 接着通过换热箱体 5 的热空气出口 52随离心风机 4排出。
在此过程中，可以通过各气体支路 11上的电磁开关阀 2和减压阀 3的调节， 来控制炉膛内不同部位的进风量； 也可以通过调节上述调速控制器， 控制炉膛 的总出风量。
由此可见本发明的优点：
1、 由于新鲜空气经过初步加热再进入炉膛， 可以降低升温所需的能耗。
2、 通过离心式风机将炉膛内高温气体抽出， 可以使炉体内外气压平衡， 有 利于生产安全。
3、 离心风机 4用的电机通过调速控制器调节， 可调节抽气量的大小。 4、 通过多个气体支路将新鲜空气定量地输送到炉膛的各个不同位置， 可以 控制炉膛内不同位置的空气流量和压力， 从而实现对加热速度的控制。
以上说明对本发明而言只是说明性的， 而非限制性的， 本领域普通技术人员理 解， 在不脱离权利要求所限定的精神和范围的情况下， 可作出许多修改、 变化 或等效， 但都将落入本发明的保护范围之内。

Claims

1、 一种辐射式加热炉体的进出风热交换系统， 其特征在于： 包括一个密闭 的换热箱体， 该换热箱体设有热空气入口与热空气出口， 该热空气入口与辐射 式加热炉体的炉膛内连通， 该热空气出口则与一个离心风机的入风口相连通； 该换热箱体内还穿设有多根热交换管， 该热交换管一端与冷空气气源相连通， 另一端连通至辐射式加热炉体的炉膛内。
2、 根据权利要求 1所述的辐射式加热炉体的进出风热交换系统， 其特征在 于： 该换热箱体内还设有多块隔板， 将该热空气入口与该热空气出口之间的连 通路线分隔为迂回路径。
3、 根据权利要求 2所述的辐射式加热炉体的进出风热交换系统， 其特征在 于： 该换热箱体、 隔板以及热交换管中的金属件均由耐热钢制成。
4、 根据权利要求 1或 2所述的辐射式加热炉体的进出风热交换系统， 其特 征在于： 各热交换管均釆用迂回造型。
5、 根据权利要求 4所述的辐射式加热炉体的进出风热交换系统， 其特征在 于： 各热交换管均是波紋钢管。
6、 根据权利要求 1所述的辐射式加热炉体的进出风热交换系统， 其特征在 于： 还设有一个分气缸， 该分气缸与每个热交换管的一端之间均通过一个气体 支路相连通， 每个气体支路上设有一个电磁开关阀与一个减压阀， 各热交换管 的另一端则连通至辐射式加热炉体的炉膛内不同位置。
7、 根据权利要求 1所述的辐射式加热炉体的进出风热交换系统， 其特征在 于： 该离心风机的电机与一个调速控制器相连。
8、 根据权利要求 7所述的辐射式加热炉体的进出风热交换系统， 其特征在 于： 该调速控制器是变频器。
9、 根据权利要求 1所述的辐射式加热炉体的进出风热交换系统， 其特征在 于： 在该换热箱体的箱板内设有一层耐热材料层。
10、 根据权利要求 9所述的辐射式加热炉体的进出风热交换系统， 其特征 在于： 该耐热材料是 lCrl 8Ni9。
PCT/CN2011/001439 2011-08-29 2011-08-29 辐射式加热炉体的进出风热交换系统 WO2013029197A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/001439 WO2013029197A1 (zh) 2011-08-29 2011-08-29 辐射式加热炉体的进出风热交换系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/001439 WO2013029197A1 (zh) 2011-08-29 2011-08-29 辐射式加热炉体的进出风热交换系统

Publications (1)

Publication Number Publication Date
WO2013029197A1 true WO2013029197A1 (zh) 2013-03-07

Family

ID=47755164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/001439 WO2013029197A1 (zh) 2011-08-29 2011-08-29 辐射式加热炉体的进出风热交换系统

Country Status (1)

Country Link
WO (1) WO2013029197A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109399899A (zh) * 2018-12-18 2019-03-01 李福全 适用于全氧窖炉的余热退火系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2692141Y (zh) * 2003-04-22 2005-04-13 秦皇岛图成玻璃技术有限公司 一种新型加热方式的玻璃钢化炉
JP2005097033A (ja) * 2003-09-24 2005-04-14 Asahi Glass Co Ltd 板状体の加熱方法
CN101905948A (zh) * 2010-08-06 2010-12-08 杭州精工机械有限公司 一种带体外循环装置的辐射加热炉
WO2011018226A1 (de) * 2009-08-14 2011-02-17 Leybold Optics Gmbh Vorrichtung und behandlungskammer zur thermischen behandlung von substraten
CN201756501U (zh) * 2010-08-06 2011-03-09 杭州精工机械有限公司 一种带体外循环装置的辐射加热炉

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2692141Y (zh) * 2003-04-22 2005-04-13 秦皇岛图成玻璃技术有限公司 一种新型加热方式的玻璃钢化炉
JP2005097033A (ja) * 2003-09-24 2005-04-14 Asahi Glass Co Ltd 板状体の加熱方法
WO2011018226A1 (de) * 2009-08-14 2011-02-17 Leybold Optics Gmbh Vorrichtung und behandlungskammer zur thermischen behandlung von substraten
CN101905948A (zh) * 2010-08-06 2010-12-08 杭州精工机械有限公司 一种带体外循环装置的辐射加热炉
CN201756501U (zh) * 2010-08-06 2011-03-09 杭州精工机械有限公司 一种带体外循环装置的辐射加热炉

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109399899A (zh) * 2018-12-18 2019-03-01 李福全 适用于全氧窖炉的余热退火系统
CN109399899B (zh) * 2018-12-18 2023-12-08 李福全 适用于全氧窖炉的余热退火系统

Similar Documents

Publication Publication Date Title
CN102261702A (zh) 双效溶液除湿新风机组
CN108006715B (zh) 一种利用烤箱余热的壁炉
CN207062135U (zh) 一种浮法玻璃生产用退火窑边部升温装置
CN103265167A (zh) 一种新型的钢化玻璃均质炉
WO2013029197A1 (zh) 辐射式加热炉体的进出风热交换系统
CN203615350U (zh) 一种用于蓄热式废气处理设备的热管换热器
CN106196125B (zh) 一种应用于焚烧装置的废气处理结构
CN207891379U (zh) 高效真空回火炉
CN203673896U (zh) 中速立式漆包机烘炉连续催化燃烧装置
CN204757701U (zh) 一种余热利用和平衡急冷风量的节能窑炉
CN202008280U (zh) 一种干燥机的热风供给装置
CN104028440A (zh) 烘箱的新风预热装置
CN105352329B (zh) 一种余热利用和平衡急冷风量的节能窑炉
CN105865023B (zh) 一种环保节能型热风炉
CN205223311U (zh) 一种针对铸铁管退火炉烟气的收集装置
CN106847427A (zh) 烤漆炉热风交换式自动降温系统
CN106642679A (zh) 一种用于茶叶加热除湿的喷流式金属热风炉
CN203128617U (zh) 退火高温炉
CN209355742U (zh) 一种翅片式换热器
CN203653416U (zh) 窑炉降温装置
CN203653638U (zh) 一种防腐蚀排污淋式净化监控操作三室真空炉
CN203653636U (zh) 一种防腐蚀排污干式净化监控操作三室真空炉
CN207741531U (zh) 一种用于生产钢卷的循环烘箱
CN105767061A (zh) 多段隧道式食品加工烘烤设备及方法
CN103212337A (zh) 基于热风进行加热处理的药品原料搅拌系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11871582

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11871582

Country of ref document: EP

Kind code of ref document: A1