Fire prevention structure for plate breakage of rolling mill

Abstract

The utility model discloses a fire prevention structure for plate breakage of a rolling mill, the rolling mill comprises a rolling mill control system, a working roll and an emulsified liquid cooling device, and the rolling mill control system is provided with an E-STOP button for operation of an operator; the emulsified liquid cooling device comprises emulsified liquid cooling spraying openings formed in the two sides of the working roller; wherein the rolling mill control system is in communication connection with the emulsified liquid cooling device, and is used for selectively opening an emulsified liquid cooling spraying opening and rapidly extinguishing sparks generated after a plate of the rolling mill is broken; the device is simple in structural design and high in automation degree, and can effectively play a role in preventing a plate-breaking fire disaster.

Description

Technical Field

[0001] The utility model relates to the field of steel plate processing, in particular to a fire prevention structure for breaking plates of a rolling mill. Background Art

[0002] During the production process of the rolling mill, the emulsion needs to be cooled. After the emulsion is rolled at high temperature, a large amount of sludge will be produced and attached to the rolling mill equipment. Typical rolling mills include six-roller reversible rolling mills, and the maximum speed of six-roller reversible rolling mills can reach 20 meters per second. Therefore, high-speed plate breakage accidents often occur in daily production. After a high-speed plate breakage occurs, the strip will quickly accumulate inside the rolling mill, and a large number of sparks will be generated during the accumulation of the strip. Due to the large amount of sludge inside the rolling mill, there is a greater fire hazard when a plate breakage occurs.

[0003] Therefore, the applicant urgently needs to seek technical solutions to solve the above technical problems. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide a fire prevention structure for broken plates of a rolling mill, which has a simple structural design, a high degree of automation, and can effectively prevent broken plate fires.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A fire prevention structure for a broken plate of a rolling mill, wherein the rolling mill comprises a rolling mill control system, a working roll and an emulsion cooling device, wherein:

[0007] The rolling mill control system is provided with an E-STOP button for operator operation;

[0008] The emulsion cooling device comprises emulsion cooling spray ports installed on both sides of the working roll;

[0009] The rolling mill control system is communicatively connected with the emulsion cooling device for selectively opening the emulsion cooling spray port to quickly extinguish sparks generated after the rolling mill breaks the plate.

[0010] Preferably, the rolling mill includes an oil mist fan and a rolling mill smoke exhaust duct connected to the oil mist fan; wherein the oil mist fan is communicatively connected to the rolling mill control system for selectively shutting down the oil mist fan to prevent the fire from spreading rapidly.

[0011] Preferably, a fire door is installed in the connecting passage between the oil mist fan and the rolling mill smoke exhaust passage; wherein, the fire door is communicatively connected to the rolling mill control system for selectively closing the fire door to further prevent the rapid spread of fire.

[0012] Preferably, the E-STOP button sends an E-STOP signal to the rolling mill control system, and the rolling mill control system establishes a chain relationship between the emulsion cooling device, the oil mist fan 12 and the fire door based on the E-STOP signal.

[0013] Preferably, the interlocking relationship means that when the operator presses the E-STOP button, the emulsion cooling spray port is automatically opened, and the oil mist fan and the fire door are automatically closed at the same time.

[0014] Preferably, the rolling mill is a six-roll reversible rolling mill.

[0015] Preferably, the maximum operating speed of the six-roller reversible rolling mill during production operation is not less than 20 m / s.

[0016] The present application sets an E-STOP button for the operator to operate in the rolling mill control system, sends an E-STOP signal to the rolling mill control system, and at the same time communicates and connects the rolling mill control system with the emulsion cooling device, so as to selectively open the emulsion cooling spray port, so that once the rolling mill breaks a plate, the generated sparks can be quickly extinguished; further preferably, the present application proposes that the rolling mill control system establishes a chain relationship between the emulsion cooling device, the oil mist fan and the fire door based on the E-STOP signal, and after the operator presses the E-STOP button, the emulsion cooling spray port is automatically opened, and the oil mist fan and the fire door are automatically closed at the same time. In actual application, when the rolling mill breaks a plate, the operator will press the E-STOP button at the first time, and the emulsion cooling device is automatically opened to automatically spray the areas on both sides of the rollers; at the same time, the oil mist fan and the fire door of the rolling mill are automatically closed, so that the smoke exhaust channel of the rolling mill is closed, effectively preventing fire after the rolling mill breaks a plate; and the structural design of the utility model is simple, the degree of automation is high, and it can effectively prevent the fire caused by the broken plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the communication connection structure of the fire protection structure of the rolling mill broken plate under the specific implementation mode of the utility model;

[0018] Figure 2 It is a schematic diagram of the fire prevention structure of a six-roller reversible rolling mill (the mill smoke exhaust channel 13 is viewed from above);

[0019] Figure 3 It is a schematic diagram of the fire prevention structure of a six-roller reversible rolling mill according to a specific implementation mode of the utility model (the mill smoke exhaust channel 13 is in a front view). DETAILED DESCRIPTION

[0020] The utility model embodiment discloses a fire prevention structure for a rolling mill plate breakage, the rolling mill comprising a rolling mill control system, working rolls and an emulsion cooling device, wherein an E-STOP button for an operator to operate is provided on the rolling mill control system; the emulsion cooling device comprises emulsion cooling spray ports installed on both sides of the working rolls; wherein the rolling mill control system is communicatively connected with the emulsion cooling device, and is used for selectively opening the emulsion cooling spray ports, so as to quickly extinguish sparks generated after the rolling mill plate breakage.

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present invention, 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 described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] See also Figure 1 , Figure 2 and Figure 3 As shown, a fire prevention structure for a rolling mill plate breakage, preferably in this embodiment, the rolling mill is a six-roll reversible rolling mill, wherein the maximum operating speed of the six-roll reversible rolling mill during production operation is not less than 20 m / s; the rolling mill comprises a rolling mill control system, a working roll 11 and an emulsion cooling device, wherein the rolling mill control system is provided with an E-STOP button for operator operation; the emulsion cooling device comprises an emulsion cooling spray port installed on both sides of the working roll 11; wherein the rolling mill control system is communicatively connected with the emulsion cooling device for selectively opening the emulsion cooling spray port for quickly extinguishing sparks generated after the rolling mill plate breakage.

[0023] Further preferably, in the present embodiment, the rolling mill includes an oil mist fan 12, and a rolling mill smoke exhaust duct 13 connected to the oil mist fan 12; wherein the oil mist fan 12 is communicatively connected to the rolling mill control system for selectively closing the oil mist fan 12 to prevent the rapid spread of fire; further preferably, in the present embodiment, a fire door 14 is installed in the connecting channel between the oil mist fan 12 and the rolling mill smoke exhaust duct 13; wherein the fire door 14 is communicatively connected to the rolling mill control system for selectively closing the fire door 14 to further prevent the rapid spread of fire.

[0024] Preferably, in this embodiment, the E-STOP button sends an E-STOP signal to the rolling mill control system, and the rolling mill control system establishes a chain relationship between the emulsion cooling device, the oil mist fan 12 and the fire door 14 based on the E-STOP signal; specifically preferably, in this embodiment, the chain relationship means that when the operator presses the E-STOP button, the emulsion cooling spray port is automatically opened, and the oil mist fan 12 and the fire door 14 are automatically closed at the same time.

[0025] During actual application of this embodiment, when a plate breaks in the rolling mill, the operator will immediately press the E-STOP button, and the emulsion cooling device will be automatically opened to automatically spray the areas on both sides of the rolls (i.e., the working rolls 11); at the same time, the oil mist fan 12 and the fire door 14 of the rolling mill will be automatically closed, thereby closing the smoke exhaust channel 13 of the rolling mill, and effectively preventing fires caused by plate breakage in the rolling mill; moreover, this embodiment has a simple structural design and a high degree of automation, and can effectively prevent fires caused by plate breakage.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire prevention structure for a broken plate of a rolling mill, characterized in that: The rolling mill comprises a rolling mill control system, a working roll (11) and an emulsion cooling device, wherein: The rolling mill control system is provided with an E-STOP button for operator operation; The emulsion cooling device comprises emulsion cooling spray ports installed on both sides of the working roll (11); The rolling mill control system is communicatively connected with the emulsion cooling device for selectively opening the emulsion cooling spray port to quickly extinguish sparks generated after the rolling mill breaks the plate.

2. The fire prevention structure for rolling mill plate breaking according to claim 1, characterized in that: The rolling mill comprises an oil mist fan (12) and a rolling mill smoke exhaust channel (13) connected to the oil mist fan (12); wherein the oil mist fan (12) is communicatively connected to the rolling mill control system for selectively shutting down the oil mist fan (12) to prevent the rapid spread of fire.

3. The fire prevention structure for rolling mill plate breaking according to claim 2, characterized in that: A fire door (14) is installed in the connection passage between the oil mist fan (12) and the rolling mill smoke exhaust passage (13); wherein the fire door (14) is communicatively connected to the rolling mill control system and is used for selectively closing the fire door (14) to further prevent the rapid spread of fire.

4. The fire prevention structure for rolling mill plate breaking according to claim 3 is characterized in that: The E-STOP button sends an E-STOP signal to the rolling mill control system, and the rolling mill control system establishes a chain relationship between the emulsion cooling device, the oil mist fan (12) and the fire door (14) based on the E-STOP signal.

5. The fire prevention structure for rolling mill plate breaking according to claim 4, characterized in that: The interlocking relationship means that when the operator presses the E-STOP button, the emulsion cooling spray port is automatically opened, and the oil mist fan (12) and the fire door (14) are automatically closed at the same time.

6. The fire prevention structure for rolling mill plate breaking according to claim 1, characterized in that: The rolling mill is a six-roller reversible rolling mill.

7. The fire prevention structure for rolling mill plate breaking according to claim 6, characterized in that: When the six-roller reversible rolling mill is in production operation, its maximum operating speed is not less than 20 m / s.

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