Paperless transmission method for continuous casting billet hot charging and hot delivery heating process

Abstract

The invention discloses a paperless transmission method for a continuous casting billet hot charging and hot delivery heating process, which relates to the technical field of steel production and comprises the following steps: presetting a first temperature threshold, a second temperature threshold, an ERP (Enterprise Resource Planning) cold charging process, a first hot charging process and a second hot charging process in an MES (Manufacturing Execution System); collecting the charging temperature of the continuous casting billet; the charging temperature of the continuous casting billet is compared with a first temperature threshold value and a second temperature threshold value, and when the charging temperature of the continuous casting billet is smaller than the first temperature threshold value, the MES system grabs an ERP cold charging process; when the charging temperature of the continuous casting billet is larger than or equal to the first temperature threshold value and smaller than the second temperature threshold value, the MES system grabs the first hot charging process; and when the charging temperature of the continuous casting billet is larger than or equal to a second temperature threshold value, the MES system grabs a second hot charging process. According to the method, paperless transmission of the hot-charging and hot-conveying heating process is realized, and the hot-rolling and hot-conveying heating process is accurately and quickly identified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel production, in particular to a method for paperless transmission of continuous casting billet hot charging and hot delivery heating process. BACKGROUND

[0002] With the continuous progress of continuous casting technology, the occurrence rate of surface cracks of the continuous casting billet is significantly reduced, and the proportion of continuous casting billet hot rolling and hot delivery is continuously improved, which promotes the development of green and low-carbon steel. In the actual production process, the general process design is completed in the ERP, and the process design is limited in the furnace time. After the continuous casting billet is charged into the furnace, the heating process is first associated with the MES system for the on-site heating worker to check. For the heating process, the heating worker needs to check different quality plans, different steel grades, different billet thicknesses, and different minimum in-furnace time requirements for different charging temperatures, which causes inconvenience to the heating worker, and a method for quickly identifying the hot rolling and hot delivery heating process is urgently needed to be developed. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a method for paperless transmission of continuous casting billet hot charging and hot delivery heating process.

[0004] In order to solve the above technical problems, the technical scheme of the present application is as follows: A method for paperless transmission of continuous casting billet hot charging and hot delivery heating process, comprising: presetting a first temperature threshold, a second temperature threshold, an ERP cold charging process, a first hot charging process and a second hot charging process in the MES system; collecting the continuous casting billet charging temperature; comparing the continuous casting billet charging temperature with the first temperature threshold and the second temperature threshold, when the continuous casting billet charging temperature is less than the first temperature threshold, the MES system captures the ERP cold charging process; when the continuous casting billet charging temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, the MES system captures the first hot charging process; when the continuous casting billet charging temperature is greater than or equal to the second temperature threshold, the MES system captures the second hot charging process.

[0005] As a preferred scheme of the method for paperless transmission of continuous casting billet hot charging and hot delivery heating process, wherein: after the comparison of the continuous casting billet charging temperature with the first temperature threshold and the second temperature threshold, when the continuous casting billet charging temperature is less than the first temperature threshold, the MES system captures the ERP cold charging process; when the continuous casting billet charging temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, the MES system captures the first hot charging process; when the continuous casting billet charging temperature is greater than or equal to the second temperature threshold, the MES system captures the second hot charging process, further comprising: throwing the heating process captured by the MES system to the heating furnace charging and tapping interface.

[0006] As a preferred scheme of the continuous casting billet hot charging and hot delivery heating process paperless transmission method, after the MES system grabs the heating process and is associated with the heating furnace and the steel tapping interface, the method further comprises: After the rolling mill sends a tapping request, it is determined whether the process temperature meets the heating process requirement of the MES system, and the steel is automatically tapped when the heating process requirement is met.

[0007] As a preferred scheme of the continuous casting billet hot charging and hot delivery heating process paperless transmission method, the first temperature threshold is 250 DEG C.

[0008] As a preferred scheme of the continuous casting billet hot charging and hot delivery heating process paperless transmission method, the second temperature threshold is 450 DEG C.

[0009] The beneficial effects of the present application are: (1) The present application realizes the hot charging and hot delivery heating process paperless transmission, and accurately and quickly identifies the hot rolling and hot delivery heating process.

[0010] (2) The present application realizes the hot charging and hot delivery combined production of multiple steel grades, facilitates the organization of production, and improves the hot charging and hot delivery efficiency. (3) In the present application, the furnace temperature measurement can be distributed to different furnaces according to the charging temperature interval, and the same temperature interval is concentrated for charging, which is convenient for heating control and reduces energy consumption. DETAILED DESCRIPTION

[0011] In order to make the content of the present application more easily understood, the present application will be further described in detail according to the specific embodiments.

[0012] The present application provides a continuous casting billet hot charging and hot delivery heating process paperless transmission method, which specifically comprises the following steps: Step S101: presetting a first temperature threshold, a second temperature threshold, an ERP cold charging process, a first hot charging process and a second hot charging process in the MES system.

[0013] Specifically, a hot charging and hot delivery heating process maintenance interface is developed in the MES system, and a first temperature threshold, a second temperature threshold, an ERP cold charging process, a first hot charging process and a second hot charging process are preset in the MES system.

[0014] Among them, the first temperature threshold is 250 DEG C, and the second temperature threshold is 450 DEG C.

[0015] It should be noted that the heating process of different steel grades, different thicknesses and different charging temperatures is maintained in the hot rolling and hot delivery heating interface, and the conventional billet is maintained.

[0016] The ERP design only considers the cold charging process (uniqueness of the process), and in actual production, in order to reduce energy consumption, the hot charging process is partially performed under the premise of ensuring product quality, and the priority of the hot charging process is higher than that of the cold charging process in actual production.

[0017] Step S102: Collecting the charging temperature of the continuous casting billet.

[0018] Specifically, the slab is checked, the charging temperature T of the continuous casting billet is measured at the furnace, and the actual charging temperature T is captured. After the steel charging space in the furnace is full, the steel is automatically transferred.

[0019] Step S103: Comparing the charging temperature of the continuous casting billet with the first temperature threshold and the second temperature threshold, when the charging temperature of the continuous casting billet is less than the first temperature threshold, the MES system captures the ERP cold charging process; when the charging temperature of the continuous casting billet is greater than or equal to the first temperature threshold and less than the second temperature threshold, the MES system captures the first hot charging process; when the charging temperature of the continuous casting billet is greater than or equal to the second temperature threshold, the MES system captures the second hot charging process.

[0020] Specifically, when the charging temperature T of the continuous casting billet is less than 250℃, the MES system captures the ERP cold charging process; when the charging temperature T of the continuous casting billet is greater than or equal to 250℃ and less than 450℃, the MES system captures the first hot charging process; when the charging temperature of the continuous casting billet is greater than or equal to 450℃, the MES system captures the second hot charging process.

[0021] It should be noted that when the MES system captures the heating process, the billet steel grade is captured according to the steel grade, and when there is no billet steel grade, it is captured according to the general steel grade.

[0022] Step S104: The heating process captured by the MES system is associated with the heating furnace steel charging interface.

[0023] Step S105: After the rolling mill sends a request for steel tapping, it is determined whether the process temperature meets the requirements of the heating process captured by the MES system, and the steel is automatically tapped when the heating process requirements are met.

[0024] In addition, the hot charging process also needs to avoid the hot charging crack sensitive temperature (650-750℃), and when the charging temperature is greater than or equal to 650℃, an over-temperature alarm is given, and the hot charging billet is lowered to prevent hot charging cracks of the rolled steel plate.

[0025] The above technical solutions will be further described through specific embodiments.

[0026] Embodiment 1: The method provided in this embodiment is a kind of continuous casting billet hot charging and hot sending heating process paperless transmission method, billet steel grade is Q355-1 (conventional steel grade), specifically including the following steps: S1, develop a hot charging and hot feeding heating process maintenance interface in the MES system, and associate it with the hot charging interface process of the heating furnace.

[0027] S2, maintain the total heating time coefficient of the hot charging and hot feeding of the different slab thicknesses and different charging temperatures of the conventional blank steel grade.

[0028] S3, the slab thickness of the hot charging and hot feeding is 260 mm, the slab steel grade is Q355-1, the charging temperature measured at the furnace front is 462 ℃, and the furnace charging space is automatically filled after being satisfied.

[0029] S4, after charging, double-click the slab number to display the lower limit of the total heating time, which is 169 min, and the upper limit of the total heating time, which is 390 min.

[0030] S5, when the rolling mill sends a tapping request, the total heating time is 173 min, which meets the hot charging and hot feeding time requirement, the tapping temperature is 1135 ℃ (process requirement 1150 ± 20 ℃), which meets the requirement, and the furnace is normally discharged.

[0031] The heating process parameters of the steel grade in this embodiment are shown in Table 1.

[0032] Table 1

[0033] Embodiment 2: A method for paperless transmission of a continuous casting slab hot charging and hot feeding heating process is provided in this embodiment, and the slab steel grade is Q420-3 (high alloy slab), which specifically includes the following steps: S1, develop a hot charging and hot feeding heating process maintenance interface in the MES system, and associate it with the hot charging interface process of the heating furnace.

[0034] S2, maintain the total heating time coefficient of the hot charging and hot feeding of the different slab thicknesses and different charging temperatures of the Q420-3 slab steel grade.

[0035] S3, the slab thickness of the hot charging and hot feeding is 220 mm, the slab steel grade is Q420-3, the charging temperature measured at the furnace front is 301 ℃, and the furnace charging space is automatically filled after being satisfied.

[0036] S4, after charging, double-click the slab number to display the lower limit of the total heating time, which is 147.4 min, and the upper limit of the total heating time, which is 330 min.

[0037] S5, when the rolling mill sends a tapping request, the total heating time is 161 min, which meets the hot charging and hot feeding time requirement, the tapping temperature is 1196 ℃ (process requirement 1210 ± 20 ℃), which meets the requirement, and the furnace is normally discharged.

[0038] It should be noted that the MES hot charging process is maintained separately for high alloy steel according to the alloy content in addition to the conventional product (low alloy).

[0039] The heating process parameters of the steel grade in this embodiment are shown in Table 2.

[0040] Table 2

[0041] Therefore, the technical scheme of the application not only realizes paperless transmission of the hot charging and hot feeding heating process and accurate and rapid identification of the hot rolling and hot feeding heating process, but also realizes combined production of multiple steel grades in hot charging and hot feeding, facilitates production organization, and improves the efficiency of hot charging and hot feeding.

[0042] In addition to the above embodiments, the present application can have other implementation manners; any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present application.

Claims

1. A paperless transmission method for hot charging and hot conveying of continuously cast billets, characterized in that: include: Within the MES system, preset the first temperature threshold, the second temperature threshold, the ERP cold loading process, the first hot loading process, and the second hot loading process; Collect the charging temperature of the continuously cast billet; The MES system compares the continuous casting billet charging temperature with a first temperature threshold and a second temperature threshold. When the continuous casting billet charging temperature is less than the first temperature threshold, the MES system captures the ERP cold charging process; when the continuous casting billet charging temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, the MES system captures the first hot charging process; when the continuous casting billet charging temperature is greater than or equal to the second temperature threshold, the MES system captures the second hot charging process.

2. The paperless transmission method for the hot charging and heating process of continuously cast billets according to claim 1, characterized in that: When comparing the continuous casting billet charging temperature with a first temperature threshold and a second temperature threshold, if the continuous casting billet charging temperature is less than the first temperature threshold, the MES system will capture the ERP cold charging process; if the continuous casting billet charging temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, the MES system will capture the first hot charging process. When the continuous casting billet charging temperature is greater than or equal to the second temperature threshold, after the MES system captures the second hot charging process, it also includes: The heating process data captured by the MES system is linked to the steel loading and unloading interface of the heating furnace.

3. The paperless transmission method for the hot charging and heating process of continuously cast billets according to claim 1, characterized in that: After associating the heating process data captured by the MES system with the steel loading interface of the heating furnace, the method further includes: After the rolling mill issues a steel tapping request, it determines whether the process temperature meets the heating process requirements captured by the MES system, and automatically taps the steel if the heating process requirements are met.

4. The paperless transmission method for the hot charging and heating process of continuously cast billets according to claim 1, characterized in that: The first temperature threshold is 250°C.

5. The paperless transmission method for the hot charging and hot conveying heating process of continuously cast billets according to claim 1, characterized in that: The second temperature threshold is 450°C.

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