CN218755950U - Multifunctional strip processing unit - Google Patents
Multifunctional strip processing unit Download PDFInfo
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- CN218755950U CN218755950U CN202221800688.8U CN202221800688U CN218755950U CN 218755950 U CN218755950 U CN 218755950U CN 202221800688 U CN202221800688 U CN 202221800688U CN 218755950 U CN218755950 U CN 218755950U
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Abstract
The utility model relates to a multi-functional strip processing unit, include the strip unwinding unit, heat treatment furnace, pickling device and the strip coiling apparatus that link up in proper order and arrange along strip traffic direction, pickling device includes the pickling section, and the pickling section includes an at least set of descaling bath, and at least part pickling bath disposes mixed acid liquid circulation unit and hydrochloric acid circulation unit, and mixed acid liquid circulation unit and hydrochloric acid circulation unit all have and are used for controlling whether circulation unit and descaling bath communicate the valve unit. The pickling tank of the pickling section is provided with the mixed acid liquid circulating unit and the hydrochloric acid circulating unit, the mixed acid liquid circulating unit can supply mixed acid pickling liquid for the pickling tank, so that the pickling section can be used for pickling titanium materials, the hydrochloric acid circulating unit can supply hydrochloric acid pickling liquid for the pickling tank, and the pickling section can be used for pickling silicon steel, so that the strip processing unit can meet the technological requirements of normalized pickling of silicon steel and continuous annealing and pickling of titanium materials, and has high technological flexibility and wide applicability.
Description
Technical Field
The utility model belongs to the technical field of the metallurgy, concretely relates to unit is handled to multi-functional strip.
Background
In the field of titanium strip production, the annealing of the titanium strip is generally carried out by vacuum annealing, particularly, the annealing is carried out in a vacuum annealing furnace before the cold rolling of the titanium strip, the problems of uneven heating inside and outside the strip and different inner and outer ring tissues exist, and meanwhile, the problems of resource occupation and low efficiency exist. The normalizing treatment process of the silicon steel is mature, but the production process of the titanium strip is relatively lagged behind; in the field of titanium strip production, continuous line production is rarely adopted, but with the increase of the demand, a continuous unit capable of saving cost and improving efficiency is a trend for producing titanium materials in the future.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a multi-functional strip processing unit can solve prior art's partial defect at least.
The utility model relates to a multi-functional strip processing unit, include along strip traffic direction linking up strip unwinding unit, heat treatment furnace, pickling device and the strip coiling apparatus who arranges in proper order, pickling device includes the pickling section, the pickling section includes an at least set of descaling bath, at least part the descaling bath disposes mixed acid liquid circulation unit and hydrochloric acid circulation unit, mixed acid liquid circulation unit with hydrochloric acid circulation unit all has and is used for controlling whether circulation unit and descaling bath communicate the valve unit.
In one embodiment, the heat treatment furnace and the strip coiling device are further connected through a bypass conveying device, the bypass conveying device is connected with the pickling device in parallel, and a channel control unit for switching the strip into the bypass conveying device and the pickling device is arranged on the outlet side of the heat treatment furnace.
As an embodiment, the pickling device further comprises a pre-cleaning section, which is located upstream of the pickling section.
As an embodiment, the pickling plant further comprises a rinsing section, which is located downstream of the pickling section.
In one embodiment, the heat treatment furnace comprises an annealing furnace.
In one embodiment, the heat treatment furnace comprises a preheating section, a heating section and a cooling section which are sequentially connected along the running direction of the strip.
In one embodiment, the cooling section comprises at least one of an air cooling section, an aerosol cooling section, and a water spray cooling section.
In one embodiment, 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 coiling device are respectively arranged on two longitudinal sides of the process section, or the strip uncoiling device and the strip coiling device are respectively arranged on one transverse side of the process section in an adjacent manner.
The utility model discloses following beneficial effect has at least:
the utility model discloses in, because the descaling bath of pickling section disposes mixing acid liquid circulation unit and hydrochloric acid circulation unit, mixing acid liquid circulation unit can supply mixing acid pickle for the descaling bath, thereby the pickling section can be used to the pickling of titanium material, hydrochloric acid circulation unit can supply hydrochloric acid pickle for the descaling bath, thereby the pickling section can be used to the pickling of silicon steel, consequently, can make above-mentioned strip processing unit can satisfy the technological requirement of silicon steel normalizing pickling and titanium material continuous annealing pickling, the technological activity is high, and wide applicability.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced, obviously, the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic layout view of a strip processing unit according to an embodiment of the present invention;
fig. 2 is another schematic layout of a strip processing unit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the embodiment of the utility model provides a multi-functional strip processing unit, include strip unwinding unit, heat treatment furnace, pickling device and the strip coiling apparatus that links up the arrangement in proper order along strip traffic direction, pickling device includes pickling section 17, pickling section 17 includes at least a set of descaling bath, at least part the descaling bath disposes mixed acid liquid circulation unit and hydrochloric acid circulation unit, mixed acid liquid circulation unit with hydrochloric acid circulation unit all has and is used for controlling whether circulation unit and descaling bath communicate the valve unit.
In one embodiment, as shown in fig. 1 and 2, the strip uncoiling device adopts a double uncoiling mode, which can effectively save the inlet coil change time, and has two uncoiling modes of double uncoiling and single uncoiling, and has the functions of off-line and on-line strip uncoiling. Specifically, the strip uncoiling device comprises a double uncoiler and a welding machine 5, the double uncoiler also comprises a first uncoiler 1 and a second uncoiler 2, and the two uncoilers are both connected with the welding machine 5; the welding machine 5 is used for welding the tail of the previous coil of strip with the head of the next coil of strip to realize continuous production, and the welding machine 5 can adopt a laser welding machine 5, a laser and argon arc composite welding machine 5 and other welding equipment which can directly roll the welding line. The first uncoiler 1 can be provided with a first inlet shear 4, and can shear off unqualified tape heads and tape tails; likewise, the second unwinder 2 can be provided with second entry shears 3.
Further, the strip uncoiling device also comprises an edge cutting shear 6 which can perform edge cutting treatment on the strip so as to remove edge defects and ensure that the strip can stably pass through subsequent equipment; the edge shears 6 may be circle shears or the like.
Preferably, the heat treatment furnace can meet the requirements of silicon steel normalizing treatment and titanium material annealing treatment, and for example, an annealing furnace is adopted. In one embodiment, as shown in fig. 1 and 2, the heat treatment furnace comprises a preheating section 10, a heating section 11 and a cooling section 12 which are sequentially connected along the running direction of the strip; wherein, optionally, the preheating section 10 may heat the strip with the flue gas of the heating section 11, for example, by extracting the flue gas of the heating section 11 into the preheating section 10 by a fan; optionally, the heating section 11 is divided into 2 to 6 heating sections, and each heating section is provided with a disc roller to realize quick roller change and ensure the surface quality of the strip; optionally, the 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, and the cooling section 12 may be further divided into a plurality of cooling sections, and cooling devices are respectively configured for each cooling section to meet the cooling process requirement of the silicon steel normalizing process and the cooling process requirement of the titanium material annealing process, for example, the air cooling section 12, the aerosol cooling section 12 and the water spray cooling section 12 are sequentially arranged along the strip running direction.
In one embodiment, the temperature of the heating section 11 of the heat treatment furnace is adjustable below 1150 ℃; when the thickness of the strip increases, the heat treatment time needs to be properly prolonged, and the heat treatment time is prolonged by 1-2 minutes for every 1mm of the thickness.
In one embodiment, the heat treatment furnace is provided with two sets of gas circulation units, preferably a nitrogen circulation unit and an air circulation unit, and the two sets of gas circulation units are switched for use (corresponding control valves are arranged on circulation pipelines) so as to ensure that the furnace atmosphere can be controlled to be nitrogen atmosphere when silicon steel is produced and air atmosphere when titanium strips are produced, and ensure that the strip treatment unit can meet the process requirements of silicon steel normalizing treatment, titanium material continuous annealing treatment and the like, and the process has high flexibility and wide applicability.
In one embodiment, the heat treatment furnace is provided with a multi-stage flue gas waste heat recovery system, so that the flue gas waste heat recovery efficiency can be improved, and the flue gas emission temperature is stabilized to 100-120 ℃.
Further, as shown in fig. 1 and 2, an inlet loop 8 is arranged at the inlet side of the heat treatment furnace, so that the production step between the strip uncoiling device and the heat treatment furnace can be coordinated, and the shutdown requirement during the operation processes of inlet uncoiling, welding and the like can be met. On the inlet side of the inlet loop 8 a first tension roller 7 can be arranged and on the outlet side of the inlet loop 8 a second tension roller 9 can be arranged.
In one embodiment, as shown in fig. 1 and 2, a surface treatment unit is disposed at the outlet side of the heat treatment furnace, so that the heat-treated strip can be subjected to surface treatment for facilitating the subsequent pickling operation. The surface treatment unit may include a shot blasting machine 14; in the embodiment, the shot blasting machine 14 is provided with 1-3 throwing chambers, and the process speed of the strip is 5-80 m/min. Furthermore, a third tension roller 13 is arranged on the front side of the shot blasting machine 14, and a fourth tension roller 15 is arranged on the rear side of the shot blasting machine 14, so that stable operation of the strip material in the shot blasting machine 14 can be ensured.
Preferably, as shown in fig. 1 and fig. 2, the pickling device further comprises a pre-cleaning section 16, wherein the pre-cleaning section 16 is located at the upstream of the pickling section 17, so that the strip can be pre-cleaned and wetted, the subsequent pickling efficiency can be improved, and the consumption of pickling solution can be saved. Optionally, the pre-cleaning section 16 includes an on-line pre-cleaning tank configured with a set of pre-cleaning liquid circulation system; the pre-cleaning section 16 may be cleaned by water washing, water mist washing, or acid washing.
In one embodiment, the pickling section 17 comprises 2 to 4 pickling tanks, preferably a shallow-tank turbulent pickling method.
Because the pickling tank of the pickling section 17 is provided with the mixed acid liquid circulating unit and the hydrochloric acid circulating unit, the mixed acid liquid circulating unit can supply mixed acid pickling liquid for the pickling tank, so that the pickling section 17 can be used for pickling titanium materials, the hydrochloric acid circulating unit can supply hydrochloric acid pickling liquid for the pickling tank, and the pickling section 17 can be used for pickling silicon steel, the strip processing unit can meet the technological requirements of normalized pickling of silicon steel and continuous annealing and pickling of titanium materials, and the strip processing unit has high process flexibility and wide applicability.
The mixed acid liquid circulating unit comprises a mixed acid circulating tank, the mixed acid circulating tank is provided with a fresh acid supply pipe, the mixed acid circulating tank is connected with an acid liquid inlet of the pickling tank through a mixed acid supply pipe, the mixed acid circulating tank is connected with an acid liquid outlet of the pickling tank through a mixed acid return pipe, and a circulating pump can be arranged on the mixed acid supply pipe. The above hydrochloric acid circulating units have similar structures and are not described in detail herein.
Preferably, in order to achieve a more effective and economical pickling effect, the mixed acid entering the mixed acid circulation tank directly acts on the surface of the titanium strip, and the mixed acid liquid is directly heated or cooled by the heat exchanger.
In one embodiment, as shown in fig. 1 and 2, the pickling device further comprises a rinsing section 18, and the rinsing section 18 is located downstream of the pickling section 17. Optionally, the rinse section 18 includes 3-5 stages of rinse tanks, with fresh water being utilized in stages.
Preferably, when the squeeze rolls in the pickling tank and the rinsing tank are changed, roll changing tools are used for roll changing from the operation side, strip steel does not need to be cut off during roll changing, and the smooth production can be ensured.
In one embodiment, the heat treatment furnace and the strip coiling device are further connected through a bypass conveying device, the bypass conveying device is connected with the pickling device in parallel, and a channel control unit for switching the strip into the bypass conveying device and the pickling device is arranged on the outlet side of the heat treatment furnace. For the normalized silicon steel which does not need to be pickled, the silicon steel does not pass through the pickling section 17, and can cross over the pickling section 17 through the bypass conveying device, so that the production flexibility can be further improved.
In one embodiment, the strip winding device comprises a first winding machine 23 and a second winding machine 24, which can improve the flexibility of the outlet winding operation and the winding efficiency, and simultaneously has off-line and on-line bundling functions. An exit shear 22 is provided at the entrance of the strip coiling device to slit the strip being continuously produced.
In one embodiment, as shown in fig. 1 and 2, an outlet loop 20 is disposed on the outlet side of the pickling device to coordinate the production pace between the pickling device and the strip coiling device, so as to meet the shutdown requirements during the operation of outlet slitting, coil stripping shutdown and the like. A fifth tension roller 19 may be arranged on the inlet side of the outlet loop 20 and a sixth tension roller 21 may be arranged on the outlet side of the outlet loop 20.
In one embodiment, as shown in fig. 1, the heat treatment furnace and the pickling device are arranged in a line to form a process section, and the strip uncoiling device and the strip coiling device are respectively arranged at two longitudinal sides of the process section, namely the strip uncoiling device, the process section and the strip coiling device are roughly arranged in a line. In another embodiment, as shown in fig. 2, 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 coiling device are arranged adjacent to each other on one lateral side of the process section. Therefore, the arrangement flexibility of the strip processing unit is high.
The embodiment of the utility model provides a still provide the application method of above-mentioned multi-functional strip processing unit, include:
when the unit is used for carrying out continuous annealing and pickling treatment on a titanium material, the titanium strip is annealed through the heat treatment furnace; in the pickling tank, the mixed acid liquor circulating unit is put into use;
when the machine set is used for normalizing and pickling the silicon steel, normalizing the silicon steel strip through the heat treatment furnace; in the pickling tank, the hydrochloric acid circulation unit is put into use.
Further, for the silicon steel which does not need pickling, the silicon steel strip after the normalization treatment is sent to a strip coiling device through a bypass conveying device.
The embodiment of the utility model provides a multi-functional strip processing unit is fit for thickness 1mm ~ 10mm, width 800 ~ 1600 mm's strip, for example thickness 1mm ~ 3mm, width 800 ~ 1300 mm's silicon steel strip to and thickness 1mm ~ 10mm, width 800 ~ 1600 mm's titanium material.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a multi-functional strip processing unit, includes along strip traffic direction in proper order link up strip unwinding unit, heat treatment furnace, acid dip pickle and the strip coiling device of arranging, its characterized in that: the pickling device comprises a pickling section, the pickling section comprises at least one group of pickling tanks, at least part of the pickling tanks are provided with a mixed acid liquid circulating unit and a hydrochloric acid circulating unit, and the mixed acid liquid circulating unit and the hydrochloric acid circulating unit are respectively provided with a control valve bank for controlling whether the circulating unit is communicated with the pickling tanks or not.
2. A multi-function strip processing unit as defined in claim 1 wherein: the heat treatment furnace and the strip coiling device are also connected through a bypass conveying device, the bypass conveying device is connected with the pickling device in parallel, and a channel control unit for switching the strip into the bypass conveying device and the pickling device is arranged on the outlet side of the heat treatment furnace.
3. A multi-function strip processing unit as defined in claim 1 wherein: the pickling apparatus further comprises a pre-cleaning section located upstream of the pickling section.
4. A multifunctional strip processing plant according to claim 1 or 3, characterized in that: the pickling plant further comprises a rinsing section located downstream of the pickling section.
5. A multi-function strip processing unit as defined in claim 1 wherein: the heat treatment furnace comprises an annealing furnace.
6. A multifunctional strip processing plant according to claim 1 or 5, characterized in that: the heat treatment furnace comprises a preheating section, a heating section and a cooling section which are sequentially connected along the running direction of the strip.
7. A multifunctional strip processing unit according to claim 6, characterized in that: the cooling section comprises at least one of an air cooling section, an aerosol cooling section and a water spray cooling section.
8. A multi-function strip processing unit as defined in claim 1 wherein: 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 coiling device are respectively arranged at the two longitudinal sides of the process section, or the strip uncoiling device and the strip coiling device are respectively arranged at one transverse side of the process section in an adjacent mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221800688.8U CN218755950U (en) | 2022-07-12 | 2022-07-12 | Multifunctional strip processing unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221800688.8U CN218755950U (en) | 2022-07-12 | 2022-07-12 | Multifunctional strip processing unit |
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| CN218755950U true CN218755950U (en) | 2023-03-28 |
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| CN202221800688.8U Active CN218755950U (en) | 2022-07-12 | 2022-07-12 | Multifunctional strip processing unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024011965A1 (en) * | 2022-07-12 | 2024-01-18 | 中冶南方工程技术有限公司 | Multifunctional strip treatment system, and method for using same |
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- 2022-07-12 CN CN202221800688.8U patent/CN218755950U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024011965A1 (en) * | 2022-07-12 | 2024-01-18 | 中冶南方工程技术有限公司 | Multifunctional strip treatment system, and method for using same |
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