Acid pickling production line and acid continuous rolling production line

Abstract

The utility model discloses an acid pickling production line and an acid continuous rolling production line, and belongs to the technical field of strip steel production equipment. The pickling production line comprises an uncoiler, a slitting shear, a welding machine and a pickling tank which are sequentially arranged according to the process. The optical detection device is arranged between the slitting shears and the welding machine, the optical detection device comprises a light source emitting end and a receiving end used for receiving signals emitted by the light source emitting end, one of the light source emitting end and the receiving end is installed on the operation side of the pickling production line, and the other one is installed on the transmission side of the pickling production line; the light source transmitting end and the light source receiving end are higher than the steel passing channel; and the controller is electrically connected with the optical detection device, the slitting shears and the welding machine. The acid continuous rolling production line comprises an acid pickling production line. And the continuous rolling unit is located at an outlet of the pickling production line, and through the structure, the pickling production line can be applied to the acid continuous rolling production line.

Description

Technical Field

[0001] The present application belongs to the technical field of strip steel production equipment, and in particular relates to a pickling production line and a pickling continuous rolling production line. Background Art

[0002] Continuous rolling mills are characterized by high production efficiency and strong process integration. However, during production, poorly shaped steel often accumulates on the unrolled coils. If this accumulation is not detected and addressed promptly, it can lead to production safety accidents. This accumulation not only impacts the mill equipment, but also reduces mill production efficiency and product qualification due to the long processing time, and can even cause roller burns. Therefore, a protective device is needed in the prior art to effectively prevent the impact of unrolled steel accumulation on mill equipment, which can lead to low production efficiency and low product qualification. Utility Model Content

[0003] The present application aims to solve, at least to a certain extent, the technical problem of uncoiled steel in a pickling production line. To this end, the present application provides a pickling production line and a pickling continuous rolling production line.

[0004] In the first aspect, an embodiment of the present application provides a pickling production line comprising: an uncoiler, a slitting shear, a welder and a pickling tank arranged in sequence according to the process; an optical detection device, arranged between the slitting shear and the welder, the optical detection device comprising a light source transmitting end and a receiving end for receiving a signal transmitted by the light source transmitting end, one of the light source transmitting end and the receiving end being installed on the operating side of the pickling production line, and the other being installed on the transmission side of the pickling production line, the heights of the light source transmitting end and the receiving end being higher than the steel passing channel; a controller, electrically connected to the optical detection device, the slitting shear and the welder. Through the above structure, the production line unit can be urgently stopped, thereby avoiding the deterioration of the fault due to the staff's untimely discovery during the production process, greatly reducing the severity of the fault damage, shortening the fault handling time, thereby increasing production time and improving production efficiency. Specifically, when steel piling occurs, the steel coils begin to accumulate between the double shears and the welder, and the accumulated steel coils block the optical detection device, thereby generating a blocking signal. The optical detection device transmits the signal to the controller, and the controller executes the emergency stop command to complete the emergency stop. When steel piling does not occur, no blocking signal is detected by the optical detection device, and the emergency stop command will not be triggered, so that the production line can operate normally.

[0005] In some embodiments, the optical detection device is a reflected light curtain, which includes a transmitter and a receiver. The transmitter is used to transmit light source signals, and the receiver is used to receive the light source signals. The reflected light curtain can accurately detect the occlusion signal and realize the function of accurate detection.

[0006] In some embodiments, an audible and visual alarm device is further included, which is electrically connected to the controller. When steel piling occurs, the optical detection device transmits the steel piling information to the controller, and the controller transmits the signal to the audible and visual alarm device, thereby activating the audible and visual alarm device. The audible and visual alarm device can alert workers in a noisy production line and enable timely processing.

[0007] In some embodiments, the sound and light alarm device includes a buzzer and a signal light, both of which are electrically connected to the controller. The buzzer can generate a buzzing sound to attract the attention of the staff, and the signal light can continuously flash to attract the attention of the staff.

[0008] In some embodiments, the sound and light alarm device is arranged in the machine control room of the pickling production line, so that the operator in the machine control room in the production line can pay attention to the signal of the sound and light alarm device at any time without designating special staff to observe the signal of the sound and light alarm device.

[0009] In some embodiments, a strip threading guide device is further included. The strip threading guide device is located between the straightening machine and the uncoiling trolley. The strip threading guide device can ensure that the hot coil head can be threaded smoothly after being tilted, thereby avoiding steel piling failure.

[0010] In some embodiments, the strip threading guide device includes a support plate, a top plate and two side plates, the side plates are connected to the support plate and the top plate, the two side plates are spaced apart along the width direction of the strip, and the support plate, the top plate and the two side plates together form a limiting channel for the strip to pass through. Through the above structure, the strip can pass through the limiting channel, thereby ensuring that the hot coil head can be threaded smoothly after it is tilted up, and shortening the gap between the uncoiling platform and the strip threading trolley, thereby avoiding steel piling failure caused by the hot coil head buckling down.

[0011] In some embodiments, the distance between the two side plates gradually decreases along the running direction of the steel strip, thereby being able to accommodate steel coils of different sizes.

[0012] In some embodiments, there are two uncoilers, and the slitting shears are double-cut shears, each of which is provided with two shearing positions corresponding to the uncoilers one by one, thereby improving efficiency.

[0013] On the other hand, an embodiment of the present application provides an acid continuous rolling production line comprising: the pickling production line; a continuous rolling mill group, wherein the continuous rolling mill group is located at the outlet of the pickling production line. Through the above structure, the pickling production line can be used in the acid continuous rolling production line.

[0014] Beneficial effects of the utility model:

[0015] The utility model realizes the function of emergency stop due to steel accumulation through an optical detection device and a controller. When steel accumulation occurs, the steel coils begin to accumulate between the slitting shears and the welding machine. The accumulated steel coils block the optical detection device, thereby generating a blocking signal. The blocking signal is transmitted to the controller, and the controller executes the emergency stop instruction to complete the emergency stop. When steel accumulation does not occur, no blocking signal is detected by the optical detection device, and the emergency stop instruction will not be triggered, so that the production line can operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 Shows the distribution location diagram of the continuous rolling mill protection device in the hot rolling mill;

[0018] Figure 2 shows a schematic diagram of the installation structure of the optical detection device;

[0019] Figure 3 A top view of the belt threading guide is shown.

[0020] Figure numerals: 1. Optical detection device; 2. Controller; 3. Transmitter; 4. Receiver; 5. Sound and light alarm device; 6. Machine control room; 7. Straightening machine; 8. Unwinding trolley; 9. Pallet; 10. Top plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0025] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0026] An embodiment of the present application provides a pickling production line, and an embodiment of the present application provides a pickling production line that can effectively prevent the uncoiling problem generated in the pickling production line.

[0027] In the first aspect of the present application, an embodiment of the present application provides a pickling production line including: a decoiler 8, a slitting shear, a welder and a pickling tank arranged in sequence according to the process; an optical detection device 1, arranged between the slitting shear and the welder, the optical detection device 1 including a light source transmitting end and a receiving end for receiving a signal transmitted by the light source transmitting end, one of the light source transmitting end and the receiving end is installed on the operating side of the pickling production line, and the other is installed on the transmission side of the pickling production line, and the heights of the light source transmitting end and the receiving end are both higher than the steel passing channel; a controller 2, electrically connected to the optical detection device 1, the slitting shear and the welder. Through the above structure, the production line unit can be urgently stopped, thereby avoiding the deterioration of the fault due to the staff's untimely discovery during the production process, greatly reducing the severity of the fault damage, shortening the fault handling time, thereby increasing production time and improving production efficiency. Specifically, when steel piling occurs, the steel coils begin to accumulate between the double shears and the welder, and the accumulated steel coils block the optical detection device 1, thereby generating a blocking signal. The optical detection device 1 transmits the signal to the controller 2, and the controller 2 executes the emergency stop command to complete the emergency stop. When the steel piling phenomenon does not occur, no blocking signal is detected by the optical detection device 1, and the emergency stop command will not be triggered, so that the production line can operate normally.

[0028] In some embodiments, the optical detection device 1 is a reflected light curtain, which includes a transmitter 3 and a receiver 4. The transmitter 3 is used to transmit light source signals, and the receiver 4 is used to receive the light source signals. The reflected light curtain can accurately detect the occlusion signal and realize the function of accurate detection.

[0029] In some embodiments, an audible and visual alarm device 5 is also included, and the audible and visual alarm device 5 is electrically connected to the controller 2. When steel piling occurs, the optical detection device 1 transmits the steel piling information to the controller 2, and the controller 2 transmits the signal to the audible and visual alarm device 5, thereby activating the audible and visual alarm device 5. The audible and visual alarm device 5 can alert workers in a noisy production line and enable timely processing.

[0030] In some embodiments, the sound and light alarm device 5 includes a buzzer and a signal light, both of which are electrically connected to the controller 2. The buzzer can generate a buzzing sound to attract the attention of the staff, and the signal light can continuously flash to attract the attention of the staff.

[0031] In some embodiments, the sound and light alarm device 5 is arranged in the machine control room 6 of the pickling production line, so that the operator of the machine control room 6 in the production line can pay attention to the signal of the sound and light alarm device 5 at any time without designating special staff to observe the signal of the sound and light alarm device 5.

[0032] In some embodiments, the pickling production line also includes a strip threading guide device, which is located between the straightening machine 7 and the uncoiling trolley. The strip threading guide device can ensure that the hot coil head can be threaded smoothly after it is tilted, avoiding steel piling failure.

[0033] In some embodiments, the strip threading guide device includes a support plate 9, a top plate 10 and two side plates, the side plates are connected to the support plate 9 and the top plate 10, and the two side plates are spaced apart along the width direction of the strip. The support plate 9, the top plate 10 and the two side plates together form a limiting channel for the strip to pass through. Through the above structure, the strip can pass through the limiting channel, thereby ensuring that the hot coil head can be threaded smoothly after it is tilted up, and shortening the gap between the uncoiling platform and the strip threading trolley, thereby avoiding steel piling failure caused by the hot coil head buckling down.

[0034] In some embodiments, the distance between the two side plates gradually decreases along the running direction of the steel strip, thereby being able to accommodate steel coils of different sizes.

[0035] In some embodiments, there are two uncoilers 8, and the slitting shears are double-cut shears. The double-cut shears are provided with two shearing positions corresponding to the uncoilers 8 one by one, thereby improving efficiency.

[0036] An acid continuous rolling production line provided in an embodiment of the present application includes: the pickling production line; a continuous rolling mill group, wherein the continuous rolling mill group is located at the outlet of the pickling production line. Through the above structure, the pickling production line can be used in the acid continuous rolling production line.

[0037] By adopting the device provided by the utility model, significant effects have been produced. The frequency of production accidents caused by steel piling has been reduced from 25 times per month to 3 times per month, which has effectively reduced the failure rate and provided strong support for efficient production and stable operation. In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like are intended to mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0038] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0039] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A pickling production line, characterized in that: include: An uncoiler (8), a slitting shear, a welding machine and a pickling tank are arranged in sequence according to the process; An optical detection device (1) is arranged between the slitting shear and the welding machine, the optical detection device (1) comprises a light source emitting end and a receiving end for receiving a signal emitted by the light source emitting end, one of the light source emitting end and the receiving end is installed on the operation side of the pickling production line, and the other is installed on the transmission side of the pickling production line, and the heights of the light source emitting end and the receiving end are both higher than the steel passage; The controller (2) is electrically connected to the optical detection device (1), the slitting shears and the welding machine.

2. The pickling production line according to claim 1, characterized in that: The optical detection device (1) is a beam-type light curtain, comprising a transmitter (3) and a receiver (4), wherein the transmitter (3) and the receiver (4) are arranged opposite to each other on both sides of the steel passage, and the transmitter (3) and the receiver (4) are located above the steel passage.

3. The pickling production line according to claim 1, characterized in that: It also includes an audible and visual alarm device (5), which is electrically connected to the controller (2).

4. The pickling production line according to claim 3, characterized in that: The sound and light alarm device (5) comprises a buzzer and a signal light, and both the buzzer and the signal light are electrically connected to the controller (2).

5. The pickling production line according to claim 3, characterized in that: The sound and light alarm device (5) is arranged in a machine control room (6) of the pickling production line.

6. The pickling production line according to claims 1-5, characterized in that: It also includes a tape threading guide device, which is located between the straightening machine (7) and the unwinding machine (8).

7. The pickling production line according to claim 1, characterized in that: The strip threading guide device includes a support plate (9), a top plate (10) and two side plates, wherein the side plates are connected to the support plate (9) and the top plate (10), and the two side plates are spaced apart along the width direction of the strip steel. The support plate (9), the top plate (10) and the two side plates together form a limiting channel for the strip steel to pass through.

8. The pickling production line according to claim 7, characterized in that: The distance between the two side plates gradually decreases along the running direction of the strip steel.

9. The pickling production line according to claim 1, characterized in that: The uncoiler (8) is provided with two, and the slitting shear is a double-cut shear, and the double-cut shear is provided with two shearing positions corresponding to the uncoiler (8) one by one.

10. A continuous acid rolling production line, characterized in that: include: The pickling production line according to any one of claims 1 to 9; A continuous rolling mill group is located at the exit of the pickling production line.

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