WO2024011965A1 - Multifunctional strip treatment system, and method for using same - Google Patents

Multifunctional strip treatment system, and method for using same Download PDF

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Publication number
WO2024011965A1
WO2024011965A1 PCT/CN2023/086413 CN2023086413W WO2024011965A1 WO 2024011965 A1 WO2024011965 A1 WO 2024011965A1 CN 2023086413 W CN2023086413 W CN 2023086413W WO 2024011965 A1 WO2024011965 A1 WO 2024011965A1
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Prior art keywords
pickling
strip
section
heat treatment
processing unit
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PCT/CN2023/086413
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French (fr)
Chinese (zh)
Inventor
李春明
贾鸿雷
黎志明
康健
张毅
廖砚林
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中冶南方工程技术有限公司
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Publication of WO2024011965A1 publication Critical patent/WO2024011965A1/en

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length

Definitions

  • the invention belongs to the field of metallurgical technology, and specifically relates to a multifunctional strip processing unit and a method of using the multifunctional strip processing unit.
  • vacuum annealing is usually used for annealing titanium strips. Especially when annealing titanium strips before cold rolling, they are also annealed in a vacuum annealing furnace. There are problems such as uneven heating inside and outside the strip and different structures of the inner and outer rings. At the same time, it occupies Resources are wasted and efficiency is low.
  • the normalization treatment process of silicon steel is relatively mature, but the titanium strip production process is relatively backward; in the field of titanium strip production, continuous line production is rarely used, but with the growth of demand, continuous units that save costs and improve efficiency are the future. A trend in the production of titanium materials.
  • the present invention relates to a multifunctional strip processing unit and a method of using the multifunctional strip processing unit, which can at least solve some of the defects of the prior art.
  • the invention relates to a multifunctional strip processing unit, which includes a strip uncoiling device, a heat treatment furnace, a pickling device and a strip coiling device arranged sequentially along the strip running direction.
  • the pickling device includes a pickling section,
  • the pickling section includes at least one set of pickling tanks, and at least part of the pickling tanks is configured with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit. Both the mixed acid liquid circulation unit and the hydrochloric acid circulation unit have a circuit for controlling the circulation unit.
  • the control valve group is connected to the pickling tank or not.
  • the heat treatment furnace and the strip coiling device are also connected through a bypass conveying device.
  • the bypass conveying device is connected in parallel with the pickling device on the outlet side of the heat treatment furnace.
  • a channel control unit is provided for switching the strip into the bypass conveying device and the pickling device.
  • the pickling device further includes a pre-cleaning section located upstream of the pickling section.
  • the pickling device further includes a rinsing section located downstream of the pickling section.
  • the heat treatment furnace includes an annealing furnace.
  • the heat treatment furnace includes a preheating section, a heating section and a cooling section that are connected in sequence along the strip running direction.
  • the cooling section includes at least one of an air cooling section, a mist cooling section and a water spray cooling section.
  • the heat treatment furnace and the pickling device are arranged in a straight line to form a process section, and the strip unwinding device and the strip coiling device are respectively arranged on both longitudinal sides of the process section. side, or the strip unwinding device and the strip winding device are both adjacently arranged on the lateral side of the process section.
  • the present invention also relates to the use method of the above-mentioned multi-functional strip processing unit, including:
  • the unit When the unit is used to perform continuous annealing and pickling treatment of titanium materials, the titanium strip is annealed through the heat treatment furnace; in the pickling tank, the mixed acid liquid circulation unit is put into use;
  • the silicon steel strip is normalized through the heat treatment furnace; in the pickling tank, the hydrochloric acid circulation unit is put into use.
  • the normalized silicon steel strip is sent to the strip coiling device through a bypass conveying device.
  • the pickling tank of the pickling section is equipped with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit
  • the mixed acid liquid circulation unit can supply mixed acid pickling liquid to the pickling tank, so that the pickling section can be used for pickling titanium materials.
  • the hydrochloric acid circulation unit can supply hydrochloric acid pickling liquid to the pickling tank, so that the pickling section can be used for pickling silicon steel. Therefore, the above-mentioned strip processing unit can meet the process requirements of normalized pickling of silicon steel and continuous annealing pickling of titanium materials. , high process flexibility and wide applicability.
  • Figure 1 is a schematic layout diagram of a strip processing unit provided by an embodiment of the present invention.
  • Figure 2 is another schematic layout diagram of a strip processing unit provided by an embodiment of the present invention.
  • an embodiment of the present invention provides a multifunctional strip processing unit, which includes a strip uncoiling device, a heat treatment furnace, a pickling device and a strip coiling device arranged sequentially along the strip running direction.
  • the pickling device includes a pickling section 17.
  • the pickling section 17 includes at least one set of pickling tanks. At least part of the pickling tanks is equipped with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit.
  • the mixed acid liquid circulation unit and the The hydrochloric acid circulation unit all has a control valve group for controlling whether the circulation unit is connected to the pickling tank.
  • the above-mentioned strip uncoiling device adopts a double uncoiling mode, which can effectively save the time of changing the coil at the entrance, and has two uncoiling modes: double uncoiling and single uncoiling, and has both offline and online capabilities.
  • Strip removal function Specifically, the above-mentioned strip uncoiling device includes a double uncoiler and a welding machine 5, The double decoiler also includes a first decoiler 1 and a second decoiler 2. Both decoilers are connected to the welding machine 5; among them, the welding machine 5 is used to connect the tail of the previous roll of strip with the next roll of strip.
  • the welding machine 5 can use a laser welding machine 5, a laser and argon arc hybrid welding machine 5, and other welding equipment that can directly roll the weld.
  • the first decoiler 1 can be equipped with a first entrance shear 4, which can cut off unqualified tape heads and tails; similarly, the second decoiler 2 can be equipped with a second entrance shear 3.
  • the above-mentioned strip unwinding device also includes an edge trimming shear 6, which can trim the strip to remove edge defects and ensure that the strip can stably pass through subsequent equipment; the edge trimming shear 6 can be a disc shear, etc. .
  • the above-mentioned heat treatment furnace can meet the requirements for normalization treatment of silicon steel and annealing treatment requirements for titanium materials, for example, an annealing furnace is used.
  • the heat treatment furnace includes a preheating section 10, a heating section 11 and a cooling section 12 that are connected in sequence along the strip running direction; wherein, optionally, the preheating section 10 can
  • the flue gas in the heating section 11 is used to heat the strip, for example, a fan is used to extract the flue gas in the heating section 11 into the preheating section 10;
  • the above-mentioned heating section 11 is divided into 2 to 6 heating sections, each heating section Disk rollers are provided to achieve rapid roll change and ensure the surface quality of the strip;
  • the above-mentioned cooling section 12 includes at least one of an air cooling section 12, an aerosol cooling section 12 and a water spray cooling section 12.
  • the cooling section 12 is divided into multiple cooling sections, and cooling equipment is configured for each cooling section to meet the cooling process requirements of the normalization treatment of silicon steel and the cooling process requirements of the annealing treatment of titanium materials, such as the air cooling section 12, the aerosol cooling section 12 and water spray cooling section 12 are arranged sequentially along the strip running direction.
  • the furnace temperature of the heating section 11 of the above-mentioned heat treatment furnace is adjustable below 1150°C; when the thickness of the strip increases, the heat treatment time should be appropriately extended. For every 1 mm increase in thickness, the heat treatment time should be extended by 1 to 2 minutes.
  • the above-mentioned heat treatment furnace is equipped with two sets of gas circulation units.
  • the two sets of gas circulation units are preferably nitrogen circulation units and air circulation units.
  • the two sets of gas circulation units are switched for use. (Just set the corresponding control valve on the circulation pipeline) to ensure that when producing silicon steel, the atmosphere in the furnace can be controlled as a nitrogen atmosphere, and when producing titanium strips, the atmosphere in the furnace can be controlled as an air atmosphere, ensuring that the above-mentioned strip processing unit can meet the requirements Process requirements such as normalization treatment of silicon steel and continuous annealing treatment of titanium materials have high process flexibility and wide applicability.
  • the above-mentioned heat treatment furnace is equipped with a multi-stage flue gas waste heat recovery system, which can improve the flue gas waste heat recovery efficiency and stabilize the flue gas emission temperature to 100-120°C.
  • an entrance looper 8 is arranged on the entrance side of the heat treatment furnace, which can coordinate the production pace between the strip uncoiling device and the heat treatment furnace, and meet the shutdown requirements during operations such as entrance uncoiling and welding.
  • a first tension roller 7 can be arranged on the inlet side of the inlet loop 8 and a second tension roller 9 can be arranged on the outlet side of the inlet loop 8 .
  • a surface treatment unit is arranged on the outlet side of the heat treatment furnace, which can perform surface treatment on the heat-treated strip to facilitate subsequent pickling operations.
  • the surface treatment unit may include a shot blasting machine 14; in this embodiment, the shot blasting machine 14 is equipped with 1 to 3 blasting chambers to meet the strip process speed of 5 meters/min to 80 meters/min. Furthermore, the shot blasting machine 14 is provided with a third tension roller 13 on the front side and a fourth tension roller 15 on the rear side, which can ensure the stable operation of the strip in the shot blasting machine 14 .
  • the pickling device also includes a pre-cleaning section 16, which is located upstream of the pickling section 17 and can pre-clean the strip and wet the strip. It can improve the efficiency of subsequent pickling and save the consumption of pickling liquid.
  • the pre-cleaning section 16 includes an online pre-cleaning tank equipped with a pre-cleaning liquid circulation system; the pre-cleaning section 16 can adopt cleaning methods such as water washing, water mist washing or pickling.
  • the above-mentioned pickling section 17 includes 2 to 4 pickling tanks, preferably using a shallow tank turbulent flow pickling method.
  • the pickling tank of the pickling section 17 is equipped with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit
  • the mixed acid liquid circulation unit The ring unit can supply mixed acid pickling liquid to the pickling tank, so that the pickling section 17 can be used for pickling titanium materials.
  • the hydrochloric acid circulation unit can supply hydrochloric acid pickling liquid to the pickling tank, so that the pickling section 17 can be used for pickling silicon steel. Therefore, the above-mentioned strip processing unit can meet the process requirements of normalized pickling of silicon steel and continuous annealing and pickling of titanium materials, with high process flexibility and wide applicability.
  • the above-mentioned mixed acid circulation unit includes a mixed acid circulation tank.
  • the mixed acid circulation tank is equipped with a new acid supply pipe.
  • the mixed acid circulation tank is connected to the acid inlet of the pickling tank through the mixed acid supply pipe.
  • the mixed acid circulation tank is connected to the pickling tank through the mixed acid return pipe.
  • the acid outlet of the tank is connected, and a circulation pump can be installed on the mixed acid supply pipe.
  • the structure of the above hydrochloric acid cycle unit is similar and will not be described in detail here.
  • the mixed acid entering the mixed acid circulation tank will directly act on the surface of the titanium belt, and the mixed acid liquid will be directly heated or cooled by the heat exchanger.
  • the pickling device further includes a rinsing section 18 located downstream of the pickling section 17 .
  • the rinsing section 18 includes 3-5 level rinsing tanks, and new water is utilized step by step.
  • roller changing tool from the operating side. There is no need to cut the strip when changing the rollers, which can ensure smooth production.
  • the heat treatment furnace and the strip coiling device are also connected through a bypass conveying device.
  • the bypass conveying device is connected in parallel with the pickling device at the outlet of the heat treatment furnace.
  • a channel control unit is provided on the side for switching the strip into the bypass conveying device and the pickling device.
  • the above-mentioned strip coiling device includes a first coiler 23 and a second coiler 24, which can improve the flexibility and coiling efficiency of export coiling operations, and has both offline and online bundling functions.
  • An outlet shear 22 is provided at the entrance of the strip coiling device, which can slit the continuously produced strip.
  • an outlet looper 20 is arranged on the outlet side of the pickling device, which can coordinate the production pace between the pickling device and the strip coiling device to meet the needs of export slitting, Shutdown requirements during operations such as unloading and shutting down volumes.
  • the fifth tension roller 19 can be arranged on the inlet side of the outlet looper 20
  • the sixth tension roller 21 can be arranged on the outlet side of the outlet looper 20 .
  • the heat treatment furnace and the pickling device are arranged in a straight line to form a process section, and the strip unwinding device and the strip coiling device are respectively arranged in the The longitudinal sides of the process section, that is, the strip unwinding device, the process section and the strip coiling device are arranged roughly in a straight line.
  • the heat treatment furnace and the pickling device are arranged in a straight line to form a process section, and the strip unwinding device and the strip coiling device are arranged adjacent to each other.
  • the lateral side of the process section It can be seen that the above-mentioned strip processing unit has high layout flexibility.
  • Embodiments of the present invention also provide a method of using the above-mentioned multifunctional strip processing unit, including:
  • the unit When the unit is used to perform continuous annealing and pickling treatment of titanium materials, the titanium strip is annealed through the heat treatment furnace; in the pickling tank, the mixed acid liquid circulation unit is put into use;
  • the silicon steel strip is normalized through the heat treatment furnace; in the pickling tank, the hydrochloric acid circulation unit is put into use.
  • the normalized silicon steel strip is sent to the strip coiling device through a bypass conveying device.
  • the multifunctional strip processing unit provided by the embodiment of the present invention is suitable for strips with a thickness of 1 mm to 10 mm and a width of 800 to 1600 mm, such as silicon steel strips with a thickness of 1 mm to 3 mm and a width of 800 to 1300 mm, and strips with a thickness of 1 mm to 10 mm and a width of 800 mm. ⁇ 1600mm titanium material.

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Abstract

The present invention relates to a multifunctional strip treatment system, and a method for using same. The system comprises a strip uncoiling apparatus, a heat treatment furnace, a pickling apparatus, and a strip coiling apparatus which are sequentially arranged and connected in a strip running direction; the pickling apparatus comprises a pickling section; the pickling section comprises at least one set of pickling tanks; at least some pickling tanks are provided with mixed acid solution circulation units and hydrochloric acid circulation units; and the mixed acid solution circulation units and the hydrochloric acid circulation units are all provided with control valve groups for controlling whether the circulation units are communicated with the pickling tanks. The pickling tanks of the pickling section are provided with the mixed acid solution circulation units and the hydrochloric acid circulation units; the mixed acid solution circulation units can supply a mixed acid pickling solution to the pickling tanks, such that the pickling section can be used for pickling a titanium material; and the hydrochloric acid circulation units can supply a hydrochloric acid pickling solution to the pickling tanks, such that the pickling section can be used for pickling silicon steel. Therefore, the strip treatment system can satisfy the process requirements of normalized pickling of the silicon steel and continuous annealing and pickling of the titanium material, and has high process flexibility and wide applicability.

Description

多功能带材处理机组及其使用方法Multifunctional strip processing unit and how to use it 技术领域Technical field
本发明属于冶金技术领域，具体涉及一种多功能带材处理机组及该多功能带材处理机组的使用方法。The invention belongs to the field of metallurgical technology, and specifically relates to a multifunctional strip processing unit and a method of using the multifunctional strip processing unit.
背景技术Background technique
在钛带生产领域，钛带的退火通常用真空退火，特别是在钛带的冷轧前退火也在真空退火炉中退火，存在带材内外加热不均、内外圈组织不同的问题，同时占用了资源，效率低下。硅钢的常化处理工艺较为成熟，但钛的带材生产工艺相对落后；在钛带生产领域，很少有采用连续线生产，但随着需求的增长，节约成本、提高效率的连续机组是将来生产钛材的一种趋势。In the field of titanium strip production, vacuum annealing is usually used for annealing titanium strips. Especially when annealing titanium strips before cold rolling, they are also annealed in a vacuum annealing furnace. There are problems such as uneven heating inside and outside the strip and different structures of the inner and outer rings. At the same time, it occupies Resources are wasted and efficiency is low. The normalization treatment process of silicon steel is relatively mature, but the titanium strip production process is relatively backward; in the field of titanium strip production, continuous line production is rarely used, but with the growth of demand, continuous units that save costs and improve efficiency are the future. A trend in the production of titanium materials.
发明内容Contents of the invention
本发明涉及一种多功能带材处理机组及该多功能带材处理机组的使用方法，至少可解决现有技术的部分缺陷。The present invention relates to a multifunctional strip processing unit and a method of using the multifunctional strip processing unit, which can at least solve some of the defects of the prior art.
本发明涉及一种多功能带材处理机组，包括沿带材运行方向依次衔接布置的带材开卷装置、热处理炉、酸洗装置和带材卷取装置，所述酸洗装置包括酸洗段，所述酸洗段包括至少一组酸洗槽，至少部分所述酸洗槽配置有混酸液循环单元和盐酸循环单元，所述混酸液循环单元和所述盐酸循环单元均具有用于控制循环单元与酸洗槽连通与否的控制阀组。The invention relates to a multifunctional strip processing unit, which includes a strip uncoiling device, a heat treatment furnace, a pickling device and a strip coiling device arranged sequentially along the strip running direction. The pickling device includes a pickling section, The pickling section includes at least one set of pickling tanks, and at least part of the pickling tanks is configured with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit. Both the mixed acid liquid circulation unit and the hydrochloric acid circulation unit have a circuit for controlling the circulation unit. The control valve group is connected to the pickling tank or not.
作为实施方式之一，所述热处理炉与所述带钢卷取装置之间还通过旁通输送装置连接，所述旁通输送装置与所述酸洗装置并联，于所述热处理炉的出口侧设有用于使带材切换进入所述旁通输送装置和所述酸洗装置的通道控制单元。 As one embodiment, the heat treatment furnace and the strip coiling device are also connected through a bypass conveying device. The bypass conveying device is connected in parallel with the pickling device on the outlet side of the heat treatment furnace. A channel control unit is provided for switching the strip into the bypass conveying device and the pickling device.
作为实施方式之一，所述酸洗装置还包括预清洗段，所述预清洗段位于所述酸洗段的上游。As one of the embodiments, the pickling device further includes a pre-cleaning section located upstream of the pickling section.
作为实施方式之一，所述酸洗装置还包括漂洗段，所述漂洗段位于所述酸洗段的下游。As one of the embodiments, the pickling device further includes a rinsing section located downstream of the pickling section.
作为实施方式之一，所述热处理炉包括退火炉。As one embodiment, the heat treatment furnace includes an annealing furnace.
作为实施方式之一，所述热处理炉包括沿带材运行方向依次衔接的预热段、加热段和冷却段。As one embodiment, the heat treatment furnace includes a preheating section, a heating section and a cooling section that are connected in sequence along the strip running direction.
作为实施方式之一，所述冷却段包括空气冷却段、气雾冷却段和喷水冷却段中的至少一种。As one embodiment, the cooling section includes at least one of an air cooling section, a mist cooling section and a water spray cooling section.
作为实施方式之一，所述热处理炉与所述酸洗装置呈一字型排列布置形成工艺段，所述带材开卷装置和所述带材卷取装置分别布置于所述工艺段的纵向两侧，或者，所述带材开卷装置和所述带材卷取装置均相邻布置于所述工艺段的横向一侧。As one embodiment, the heat treatment furnace and the pickling device are arranged in a straight line to form a process section, and the strip unwinding device and the strip coiling device are respectively arranged on both longitudinal sides of the process section. side, or the strip unwinding device and the strip winding device are both adjacently arranged on the lateral side of the process section.
本发明还涉及上述多功能带材处理机组的使用方法，包括：The present invention also relates to the use method of the above-mentioned multi-functional strip processing unit, including:
所述机组用于进行钛材的连续退火酸洗处理时，通过所述热处理炉对钛带进行退火处理；所述酸洗槽中，所述混酸液循环单元投入使用；When the unit is used to perform continuous annealing and pickling treatment of titanium materials, the titanium strip is annealed through the heat treatment furnace; in the pickling tank, the mixed acid liquid circulation unit is put into use;
所述机组用于进行硅钢的常化酸洗时，通过所述热处理炉对硅钢带进行常化处理；所述酸洗槽中，所述盐酸循环单元投入使用。When the unit is used for normalizing pickling of silicon steel, the silicon steel strip is normalized through the heat treatment furnace; in the pickling tank, the hydrochloric acid circulation unit is put into use.
进一步地，对于不需要酸洗的硅钢，通过旁通输送装置将常化处理后的硅钢带送至带材卷取装置。Further, for silicon steel that does not require pickling, the normalized silicon steel strip is sent to the strip coiling device through a bypass conveying device.
本发明至少具有如下有益效果：The present invention at least has the following beneficial effects:
本发明中，由于酸洗段的酸洗槽配置有混酸液循环单元和盐酸循环单元，混酸液循环单元可为酸洗槽供应混酸酸洗液，从而酸洗段可用于钛材的酸洗， 盐酸循环单元可为酸洗槽供应盐酸酸洗液，从而酸洗段可用于硅钢的酸洗，因此可使上述带材处理机组能够满足硅钢常化酸洗和钛材连续退火酸洗的工艺要求，工艺灵活度高、适用性广。In the present invention, since the pickling tank of the pickling section is equipped with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit, the mixed acid liquid circulation unit can supply mixed acid pickling liquid to the pickling tank, so that the pickling section can be used for pickling titanium materials. The hydrochloric acid circulation unit can supply hydrochloric acid pickling liquid to the pickling tank, so that the pickling section can be used for pickling silicon steel. Therefore, the above-mentioned strip processing unit can meet the process requirements of normalized pickling of silicon steel and continuous annealing pickling of titanium materials. , high process flexibility and wide applicability.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.
图1为本发明实施例提供的带材处理机组的一种布置示意图；Figure 1 is a schematic layout diagram of a strip processing unit provided by an embodiment of the present invention;
图2为本发明实施例提供的带材处理机组的另一种布置示意图。Figure 2 is another schematic layout diagram of a strip processing unit provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
如图1和图2，本发明实施例提供一种多功能带材处理机组，包括沿带材运行方向依次衔接布置的带材开卷装置、热处理炉、酸洗装置和带材卷取装置，所述酸洗装置包括酸洗段17，所述酸洗段17包括至少一组酸洗槽，至少部分所述酸洗槽配置有混酸液循环单元和盐酸循环单元，所述混酸液循环单元和所述盐酸循环单元均具有用于控制循环单元与酸洗槽连通与否的控制阀组。As shown in Figures 1 and 2, an embodiment of the present invention provides a multifunctional strip processing unit, which includes a strip uncoiling device, a heat treatment furnace, a pickling device and a strip coiling device arranged sequentially along the strip running direction. The pickling device includes a pickling section 17. The pickling section 17 includes at least one set of pickling tanks. At least part of the pickling tanks is equipped with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit. The mixed acid liquid circulation unit and the The hydrochloric acid circulation unit all has a control valve group for controlling whether the circulation unit is connected to the pickling tank.
在其中一个实施例中，如图1和图2，上述带材开卷装置采用双开卷方式，能有效地节约入口换卷时间，并且具备双开卷和单开卷两种开卷模式，同时具备离线和在线拆捆带功能。具体地，上述带材开卷装置包括双开卷机和焊机5， 双开卷机也即包括第一开卷机1和第二开卷机2，两台开卷机均与焊机5衔接；其中，焊机5用于将上一卷带材的带尾与下一卷带材的带头焊接起来，以实现连续生产，该焊机5可采用激光焊机5、激光与氩弧复合焊机5等满足焊缝能直接轧制的焊接设备。其中，第一开卷机1可以配置第一入口剪4，可以剪去不合格的带头和带尾；同样地，第二开卷机2可以配置第二入口剪3。In one embodiment, as shown in Figure 1 and Figure 2, the above-mentioned strip uncoiling device adopts a double uncoiling mode, which can effectively save the time of changing the coil at the entrance, and has two uncoiling modes: double uncoiling and single uncoiling, and has both offline and online capabilities. Strip removal function. Specifically, the above-mentioned strip uncoiling device includes a double uncoiler and a welding machine 5, The double decoiler also includes a first decoiler 1 and a second decoiler 2. Both decoilers are connected to the welding machine 5; among them, the welding machine 5 is used to connect the tail of the previous roll of strip with the next roll of strip. To achieve continuous production, the welding machine 5 can use a laser welding machine 5, a laser and argon arc hybrid welding machine 5, and other welding equipment that can directly roll the weld. Among them, the first decoiler 1 can be equipped with a first entrance shear 4, which can cut off unqualified tape heads and tails; similarly, the second decoiler 2 can be equipped with a second entrance shear 3.
进一步地，上述带材开卷装置还包括切边剪6，可以对带材进行切边处理，以去除边部缺陷，保证带材能稳定通过后续设备；该切边剪6可以采用圆盘剪等。Furthermore, the above-mentioned strip unwinding device also includes an edge trimming shear 6, which can trim the strip to remove edge defects and ensure that the strip can stably pass through subsequent equipment; the edge trimming shear 6 can be a disc shear, etc. .
优选地，上述热处理炉可以满足硅钢常化处理要求以及钛材退火处理要求，例如采用退火炉。在其中一个实施例中，如图1和图2，该热处理炉包括沿带材运行方向依次衔接的预热段10、加热段11和冷却段12；其中，可选地，预热段10可利用加热段11的烟气加热带材，例如通过风机将加热段11的烟气抽取至预热段10内；可选地，上述加热段11分为2～6个加热区间，每个加热区间设置圆盘辊，以实现快速换辊，保证带材表面质量；可选地，上述冷却段12包括空气冷却段12、气雾冷却段12和喷水冷却段12中的至少一种，进一步可将冷却段12分为多个冷却区间，分别为各冷却区间配置冷却设备，以满足硅钢常化处理的冷却工艺要求以及钛材退火处理的冷却工艺要求，例如空气冷却段12、气雾冷却段12和喷水冷却段12沿带材运行方向依次设置。Preferably, the above-mentioned heat treatment furnace can meet the requirements for normalization treatment of silicon steel and annealing treatment requirements for titanium materials, for example, an annealing furnace is used. In one embodiment, as shown in Figures 1 and 2, the heat treatment furnace includes a preheating section 10, a heating section 11 and a cooling section 12 that are connected in sequence along the strip running direction; wherein, optionally, the preheating section 10 can The flue gas in the heating section 11 is used to heat the strip, for example, a fan is used to extract the flue gas in the heating section 11 into the preheating section 10; optionally, the above-mentioned heating section 11 is divided into 2 to 6 heating sections, each heating section Disk rollers are provided to achieve rapid roll change and ensure the surface quality of the strip; optionally, the above-mentioned cooling section 12 includes at least one of an air cooling section 12, an aerosol cooling section 12 and a water spray cooling section 12. It can further be The cooling section 12 is divided into multiple cooling sections, and cooling equipment is configured for each cooling section to meet the cooling process requirements of the normalization treatment of silicon steel and the cooling process requirements of the annealing treatment of titanium materials, such as the air cooling section 12, the aerosol cooling section 12 and water spray cooling section 12 are arranged sequentially along the strip running direction.
在其中一个实施例中，上述热处理炉的加热段11炉温在1150℃以下可调；带材厚度增加时，热处理时间要适当延长，厚度每增加1毫米，热处理时间延长1～2分钟。In one embodiment, the furnace temperature of the heating section 11 of the above-mentioned heat treatment furnace is adjustable below 1150°C; when the thickness of the strip increases, the heat treatment time should be appropriately extended. For every 1 mm increase in thickness, the heat treatment time should be extended by 1 to 2 minutes.
在其中一个实施例中，上述热处理炉配置有两套气体循环单元，两套气体循环单元优选为是氮气循环单元和空气循环单元，两套气体循环单元切换使用 (在循环管路上设置相应的控制阀即可)，以保证生产硅钢时，炉内气氛可以控制为氮气气氛，生产钛带时炉内气氛可以控制为空气气氛，保证上述带材处理机组能够满足硅钢常化处理和钛材连续退火处理等工艺要求，工艺灵活度高、适用性广。In one embodiment, the above-mentioned heat treatment furnace is equipped with two sets of gas circulation units. The two sets of gas circulation units are preferably nitrogen circulation units and air circulation units. The two sets of gas circulation units are switched for use. (Just set the corresponding control valve on the circulation pipeline) to ensure that when producing silicon steel, the atmosphere in the furnace can be controlled as a nitrogen atmosphere, and when producing titanium strips, the atmosphere in the furnace can be controlled as an air atmosphere, ensuring that the above-mentioned strip processing unit can meet the requirements Process requirements such as normalization treatment of silicon steel and continuous annealing treatment of titanium materials have high process flexibility and wide applicability.
在其中一个实施例中，上述热处理炉配置有多级烟气余热回收系统，可以提高烟气余热回收效率，烟气排放温度稳定到100～120℃。In one embodiment, the above-mentioned heat treatment furnace is equipped with a multi-stage flue gas waste heat recovery system, which can improve the flue gas waste heat recovery efficiency and stabilize the flue gas emission temperature to 100-120°C.
进一步地，如图1和图2，在热处理炉的入口侧布置有入口活套8，可以协调带材开卷装置与热处理炉之间的生产步调，满足入口开卷、焊接等操作过程中的停机需求。在该入口活套8的入口侧可布置第一张力辊7，在该入口活套8的出口侧可布置第二张力辊9。Further, as shown in Figures 1 and 2, an entrance looper 8 is arranged on the entrance side of the heat treatment furnace, which can coordinate the production pace between the strip uncoiling device and the heat treatment furnace, and meet the shutdown requirements during operations such as entrance uncoiling and welding. . A first tension roller 7 can be arranged on the inlet side of the inlet loop 8 and a second tension roller 9 can be arranged on the outlet side of the inlet loop 8 .
在其中一个实施例中，如图1和图2，在热处理炉的出口侧布置有表面处理单元，可以对热处理后的带材进行表面处理，便于后续的酸洗操作。该表面处理单元可包括抛丸机14；本实施例中，该抛丸机14设置1～3个抛室，满足带材工艺速度5米/min～80米/min。进一步地，抛丸机14前侧设有第三张力辊13、后侧设有第四张力辊15，可以保证抛丸机14内带材的稳定运行。In one embodiment, as shown in Figures 1 and 2, a surface treatment unit is arranged on the outlet side of the heat treatment furnace, which can perform surface treatment on the heat-treated strip to facilitate subsequent pickling operations. The surface treatment unit may include a shot blasting machine 14; in this embodiment, the shot blasting machine 14 is equipped with 1 to 3 blasting chambers to meet the strip process speed of 5 meters/min to 80 meters/min. Furthermore, the shot blasting machine 14 is provided with a third tension roller 13 on the front side and a fourth tension roller 15 on the rear side, which can ensure the stable operation of the strip in the shot blasting machine 14 .
优选地，如图1和图2，所述酸洗装置还包括预清洗段16，所述预清洗段16位于所述酸洗段17的上游，可以对带材进行预清洗，并润湿带材，能提高后续的酸洗效率，并节约酸洗液消耗量。可选地，该预清洗段16包括一段在线预清洗槽，配置有一套预清洗液循环系统；该预清洗段16可以采用水洗、水雾洗或酸洗等清洗方式。Preferably, as shown in Figures 1 and 2, the pickling device also includes a pre-cleaning section 16, which is located upstream of the pickling section 17 and can pre-clean the strip and wet the strip. It can improve the efficiency of subsequent pickling and save the consumption of pickling liquid. Optionally, the pre-cleaning section 16 includes an online pre-cleaning tank equipped with a pre-cleaning liquid circulation system; the pre-cleaning section 16 can adopt cleaning methods such as water washing, water mist washing or pickling.
在其中一个实施例中，上述酸洗段17包括2～4个酸洗槽，优选为采用浅槽紊流酸洗方式。In one embodiment, the above-mentioned pickling section 17 includes 2 to 4 pickling tanks, preferably using a shallow tank turbulent flow pickling method.
由于酸洗段17的酸洗槽配置有混酸液循环单元和盐酸循环单元，混酸液循 环单元可为酸洗槽供应混酸酸洗液，从而酸洗段17可用于钛材的酸洗，盐酸循环单元可为酸洗槽供应盐酸酸洗液，从而酸洗段17可用于硅钢的酸洗，因此可使上述带材处理机组能够满足硅钢常化酸洗和钛材连续退火酸洗的工艺要求，工艺灵活度高、适用性广。Since the pickling tank of the pickling section 17 is equipped with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit, the mixed acid liquid circulation unit The ring unit can supply mixed acid pickling liquid to the pickling tank, so that the pickling section 17 can be used for pickling titanium materials. The hydrochloric acid circulation unit can supply hydrochloric acid pickling liquid to the pickling tank, so that the pickling section 17 can be used for pickling silicon steel. Therefore, the above-mentioned strip processing unit can meet the process requirements of normalized pickling of silicon steel and continuous annealing and pickling of titanium materials, with high process flexibility and wide applicability.
上述混酸液循环单元包括混酸循环罐，该混酸循环罐设有新酸补给管，该混酸循环罐通过混酸供给管与酸洗槽的酸液入口连接，该混酸循环罐通过混酸回流管与酸洗槽的酸液出口连接，可在混酸供给管上设置循环泵。上述盐酸循环单元的结构类似，此处不作赘述。The above-mentioned mixed acid circulation unit includes a mixed acid circulation tank. The mixed acid circulation tank is equipped with a new acid supply pipe. The mixed acid circulation tank is connected to the acid inlet of the pickling tank through the mixed acid supply pipe. The mixed acid circulation tank is connected to the pickling tank through the mixed acid return pipe. The acid outlet of the tank is connected, and a circulation pump can be installed on the mixed acid supply pipe. The structure of the above hydrochloric acid cycle unit is similar and will not be described in detail here.
优选地，为了达到更加有效和经济的酸洗效果，进入混酸循环罐的混酸将直接作用于钛带表面，混酸液直接由换热器进行加热或冷却。Preferably, in order to achieve a more effective and economical pickling effect, the mixed acid entering the mixed acid circulation tank will directly act on the surface of the titanium belt, and the mixed acid liquid will be directly heated or cooled by the heat exchanger.
在其中一个实施例中，如图1和图2，所述酸洗装置还包括漂洗段18，所述漂洗段18位于所述酸洗段17的下游。可选地，该漂洗段18包括3～5级漂洗槽，新水逐级利用。In one embodiment, as shown in FIGS. 1 and 2 , the pickling device further includes a rinsing section 18 located downstream of the pickling section 17 . Optionally, the rinsing section 18 includes 3-5 level rinsing tanks, and new water is utilized step by step.
优选地，酸洗槽和漂洗槽内的挤干辊换辊时，从操作侧用换辊工具换辊，换辊时不需要剪断带钢，可保证生产顺行。Preferably, when changing the squeezing rollers in the pickling tank and rinsing tank, use the roller changing tool from the operating side. There is no need to cut the strip when changing the rollers, which can ensure smooth production.
在其中一个实施例中，所述热处理炉与所述带钢卷取装置之间还通过旁通输送装置连接，所述旁通输送装置与所述酸洗装置并联，于所述热处理炉的出口侧设有用于使带材切换进入所述旁通输送装置和所述酸洗装置的通道控制单元。对于不需要酸洗的常化后的硅钢，不经过酸洗段17，可通过上述旁通输送装置跨过酸洗段17，能进一步提高生产灵活性。In one embodiment, the heat treatment furnace and the strip coiling device are also connected through a bypass conveying device. The bypass conveying device is connected in parallel with the pickling device at the outlet of the heat treatment furnace. A channel control unit is provided on the side for switching the strip into the bypass conveying device and the pickling device. For normalized silicon steel that does not need pickling, it can pass through the pickling section 17 through the above-mentioned bypass conveying device without passing through the pickling section 17, which can further improve production flexibility.
在其中一个实施例中，上述带材卷取装置包括第一卷取机23和第二卷取机24，能提高出口卷取作业灵活性和卷取效率，同时具备离线和在线打捆功能。在带材卷取装置的入口处设有出口剪22，可以对连续生产的带材进行分切。 In one embodiment, the above-mentioned strip coiling device includes a first coiler 23 and a second coiler 24, which can improve the flexibility and coiling efficiency of export coiling operations, and has both offline and online bundling functions. An outlet shear 22 is provided at the entrance of the strip coiling device, which can slit the continuously produced strip.
在其中一个实施例中，如图1和图2，在酸洗装置的出口侧布置有出口活套20，可以协调酸洗装置与带材卷取装置之间的生产步调，满足出口分切、卸卷停机等操作过程中的停机需求。在该出口活套20的入口侧可布置第五张力辊19，在该出口活套20的出口侧可布置第六张力辊21。In one embodiment, as shown in Figures 1 and 2, an outlet looper 20 is arranged on the outlet side of the pickling device, which can coordinate the production pace between the pickling device and the strip coiling device to meet the needs of export slitting, Shutdown requirements during operations such as unloading and shutting down volumes. The fifth tension roller 19 can be arranged on the inlet side of the outlet looper 20 , and the sixth tension roller 21 can be arranged on the outlet side of the outlet looper 20 .
在其中一个实施例中，如图1，所述热处理炉与所述酸洗装置呈一字型排列布置形成工艺段，所述带材开卷装置和所述带材卷取装置分别布置于所述工艺段的纵向两侧，也即带材开卷装置、工艺段和带材卷取装置大致地呈一字排列形式。在另外的实施例中，如图2，所述热处理炉与所述酸洗装置呈一字型排列布置形成工艺段，所述带材开卷装置和所述带材卷取装置均相邻布置于所述工艺段的横向一侧。可见，上述带材处理机组的布置灵活度较高。In one embodiment, as shown in Figure 1, the heat treatment furnace and the pickling device are arranged in a straight line to form a process section, and the strip unwinding device and the strip coiling device are respectively arranged in the The longitudinal sides of the process section, that is, the strip unwinding device, the process section and the strip coiling device are arranged roughly in a straight line. In another embodiment, as shown in Figure 2, the heat treatment furnace and the pickling device are arranged in a straight line to form a process section, and the strip unwinding device and the strip coiling device are arranged adjacent to each other. The lateral side of the process section. It can be seen that the above-mentioned strip processing unit has high layout flexibility.
本发明实施例还提供上述多功能带材处理机组的使用方法，包括：Embodiments of the present invention also provide a method of using the above-mentioned multifunctional strip processing unit, including:
所述机组用于进行钛材的连续退火酸洗处理时，通过所述热处理炉对钛带进行退火处理；所述酸洗槽中，所述混酸液循环单元投入使用；When the unit is used to perform continuous annealing and pickling treatment of titanium materials, the titanium strip is annealed through the heat treatment furnace; in the pickling tank, the mixed acid liquid circulation unit is put into use;
所述机组用于进行硅钢的常化酸洗时，通过所述热处理炉对硅钢带进行常化处理；所述酸洗槽中，所述盐酸循环单元投入使用。When the unit is used for normalizing pickling of silicon steel, the silicon steel strip is normalized through the heat treatment furnace; in the pickling tank, the hydrochloric acid circulation unit is put into use.
进一步地，对于不需要酸洗的硅钢，通过旁通输送装置将常化处理后的硅钢带送至带材卷取装置。Further, for silicon steel that does not require pickling, the normalized silicon steel strip is sent to the strip coiling device through a bypass conveying device.
本发明实施例提供的多功能带材处理机组，适合厚度1mm～10mm、宽度800～1600mm的带材，例如厚度1mm～3mm、宽度800～1300mm的硅钢带材，以及厚度1mm～10mm、宽度800～1600mm的钛材。The multifunctional strip processing unit provided by the embodiment of the present invention is suitable for strips with a thickness of 1 mm to 10 mm and a width of 800 to 1600 mm, such as silicon steel strips with a thickness of 1 mm to 3 mm and a width of 800 to 1300 mm, and strips with a thickness of 1 mm to 10 mm and a width of 800 mm. ~1600mm titanium material.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (10)

  1. 一种多功能带材处理机组，包括沿带材运行方向依次衔接布置的带材开卷装置、热处理炉、酸洗装置和带材卷取装置，其特征在于：所述酸洗装置包括酸洗段，所述酸洗段包括至少一组酸洗槽，至少部分所述酸洗槽配置有混酸液循环单元和盐酸循环单元，所述混酸液循环单元和所述盐酸循环单元均具有用于控制循环单元与酸洗槽连通与否的控制阀组。A multifunctional strip processing unit, including a strip uncoiling device, a heat treatment furnace, a pickling device and a strip coiling device arranged sequentially along the strip running direction, characterized in that: the pickling device includes a pickling section , the pickling section includes at least one group of pickling tanks, at least part of the pickling tanks is configured with a mixed acid liquid circulation unit and a hydrochloric acid circulation unit, both the mixed acid liquid circulation unit and the hydrochloric acid circulation unit have a function for controlling the circulation The control valve group controls whether the unit is connected to the pickling tank.
  2. 如权利要求1所述的多功能带材处理机组，其特征在于：所述热处理炉与所述带钢卷取装置之间还通过旁通输送装置连接，所述旁通输送装置与所述酸洗装置并联，于所述热处理炉的出口侧设有用于使带材切换进入所述旁通输送装置和所述酸洗装置的通道控制单元。The multifunctional strip processing unit according to claim 1, characterized in that: the heat treatment furnace and the strip coiling device are also connected through a bypass conveying device, and the bypass conveying device and the acid The washing devices are connected in parallel, and a channel control unit for switching the strip into the bypass conveying device and the pickling device is provided on the outlet side of the heat treatment furnace.
  3. 如权利要求1所述的多功能带材处理机组，其特征在于：所述酸洗装置还包括预清洗段，所述预清洗段位于所述酸洗段的上游。The multifunctional strip processing unit according to claim 1, wherein the pickling device further includes a pre-cleaning section, and the pre-cleaning section is located upstream of the pickling section.
  4. 如权利要求1或3所述的多功能带材处理机组，其特征在于：所述酸洗装置还包括漂洗段，所述漂洗段位于所述酸洗段的下游。The multifunctional strip processing unit according to claim 1 or 3, characterized in that the pickling device further includes a rinsing section, and the rinsing section is located downstream of the pickling section.
  5. 如权利要求1所述的多功能带材处理机组，其特征在于：所述热处理炉包括退火炉。The multifunctional strip processing unit according to claim 1, wherein the heat treatment furnace includes an annealing furnace.
  6. 如权利要求1或5所述的多功能带材处理机组，其特征在于：所述热处理炉包括沿带材运行方向依次衔接的预热段、加热段和冷却段。The multifunctional strip processing unit according to claim 1 or 5, characterized in that the heat treatment furnace includes a preheating section, a heating section and a cooling section connected in sequence along the strip running direction.
  7. 如权利要求6所述的多功能带材处理机组，其特征在于：所述冷却段包括空气冷却段、气雾冷却段和喷水冷却段中的至少一种。The multifunctional strip processing unit according to claim 6, wherein the cooling section includes at least one of an air cooling section, an aerosol cooling section and a water spray cooling section.
  8. 如权利要求1所述的多功能带材处理机组，其特征在于：所述热处理炉与所述酸洗装置呈一字型排列布置形成工艺段，所述带材开卷装置和所述带材卷取装置分别布置于所述工艺段的纵向两侧，或者，所述带材开卷装置和所述带材卷取装置均相邻布置于所述工艺段的横向一侧。 The multifunctional strip processing unit according to claim 1, characterized in that: the heat treatment furnace and the pickling device are arranged in a straight line to form a process section, and the strip uncoiling device and the strip coil The taking-out devices are respectively arranged on both longitudinal sides of the process section, or the strip unwinding device and the strip winding device are both adjacently arranged on the transverse side of the process section.
  9. 如权利要求1至8中任一项所述的多功能带材处理机组的使用方法，其特征在于，包括：The method of using the multifunctional strip processing unit according to any one of claims 1 to 8, characterized in that it includes:
    所述机组用于进行钛材的连续退火酸洗处理时，通过所述热处理炉对钛带进行退火处理；所述酸洗槽中，所述混酸液循环单元投入使用；When the unit is used to perform continuous annealing and pickling treatment of titanium materials, the titanium strip is annealed through the heat treatment furnace; in the pickling tank, the mixed acid liquid circulation unit is put into use;
    所述机组用于进行硅钢的常化酸洗时，通过所述热处理炉对硅钢带进行常化处理；所述酸洗槽中，所述盐酸循环单元投入使用。When the unit is used for normalizing pickling of silicon steel, the silicon steel strip is normalized through the heat treatment furnace; in the pickling tank, the hydrochloric acid circulation unit is put into use.
  10. 如权利要求9所述的使用方法，其特征在于，对于不需要酸洗的硅钢，通过旁通输送装置将常化处理后的硅钢带送至带材卷取装置。 The method of use according to claim 9, characterized in that, for silicon steel that does not require pickling, the normalized silicon steel strip is sent to the strip coiling device through a bypass conveying device.
PCT/CN2023/086413 2022-07-12 2023-04-06 Multifunctional strip treatment system, and method for using same WO2024011965A1 (en)

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