Device for measuring actual flow of argon system of slab casting machine
By using components such as float flowmeters in the argon system of the slab caster for flow measurement, the problem of inaccurate argon flow measurement is solved, production efficiency and slab quality are improved, and production costs are reduced.
Patent Information
- Application Number
- CN202510845284.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-09-30
AI Technical Summary
The existing technology lacks effective means to measure the actual flow rate of argon, resulting in poor castability of molten steel in slab casting machine production, low continuous casting cycle, high production cost and high labor intensity.
A device consisting of a float flowmeter, a gas pressure reducer, a pressure gauge and a connecting nut is connected to the argon pipe through a reducing joint to achieve direct measurement and monitoring of the argon system flow, and to promptly detect and adjust flow deviations.
The quality of the ingot is improved, the castability and continuity of the molten steel are guaranteed, the production cost and labor intensity are reduced, and inclusion or slag defects caused by argon flow errors are avoided.
Smart Images
Figure CN120721174A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of iron and steel metallurgy, and in particular to an actual flow measurement device for an argon system of a slab caster. Background Art
[0002] When the slab casting machine of the Beiying Steel Plant of Benxi Iron and Steel Group produces cold-rolled materials, the continuous casting cycle is relatively low, with an average continuous casting cycle of about 420 minutes. This results in high production costs, large steel material losses, and high labor intensity.
[0003] The primary factor impacting the continuous casting cycle of slabs in the tundish is poor molten steel castability. The effectiveness of the argon flow rate used to protect the pouring system directly impacts castability, the continuous casting cycle, and slab quality. Currently, there are no effective methods for measuring the actual argon flow rate. Summary of the Invention
[0004] In response to the above problems, the purpose of the present invention is to provide an actual flow measurement device for the argon system of a slab casting machine, which can directly measure the actual argon flow of the large package sleeve, between plates, water inlet, stopper rod, etc. in the argon system. If an abnormality is found, it can be adjusted and processed in time, which can effectively solve the problem of large deviation between the set flow and the actual argon flow of the casting machine's argon system.
[0005] The technical solution adopted in the present invention is as follows: The present invention proposes an actual flow measurement device for the argon system of a slab casting machine, comprising a float flowmeter, a gas pressure reducer, a pressure gauge and a connecting nut; the pressure gauge is arranged on one side of the gas pressure reducer; the float flowmeter is connected to the output end of the gas pressure reducer through a pipeline; the connecting nut is connected to the input end of the gas pressure reducer through a pipeline.
[0006] Furthermore, a reducing joint is provided at the input end of the connecting nut.
[0007] Furthermore, a flow regulating valve is provided between the gas pressure reducer and the float flowmeter.
[0008] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is connected to the pipeline outlet of the argon system to calibrate whether there is a large deviation or leakage between the actual flow rate of the argon system and the set flow rate, and to verify whether the argon pressure meets the production standards, so as to improve the quality of the casting during the production process and ensure the continuity of the molten steel castability.
[0009] 2. The present invention can monitor and measure the protective pouring argon system during the production process, and can effectively avoid the problem of being unable to correctly calibrate the optimal argon flow rate for inclusion defects due to the large error between the flow setting value and the actual value of the tundish argon system, thereby increasing the problems of inclusion or slag defects in the casting. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the overall structure of an actual flow measurement device for the argon system of a slab caster proposed by the present invention.
[0011] Among them, the figure marks are: 1-float flowmeter; 2-flow regulating valve; 3-gas pressure reducer; 4-connecting nut; 5-reducing joint; 6-argon gas pipe; 7-pressure gauge. DETAILED DESCRIPTION
[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0013] See attached Figure 1 The present invention proposes an actual flow measurement device for the argon system of a slab casting machine, comprising a float flowmeter 1, a connecting nut 4, a gas pressure reducer 3 and a pressure gauge 7; the pressure gauge 7 is installed on one side of the gas pressure reducer 3; the float flowmeter 1 is connected to the output end side of the gas pressure reducer 3 through a pipeline; the connecting nut 4 is connected to the input end side of the gas pressure reducer 3 through a pipeline, and is used to be connected to the argon pipe 6.
[0014] In this embodiment, a reducer 5 is provided at the input end of the connecting nut 4 ; one end of the reducer is threadedly connected to the connecting nut 4 , and the other end is threadedly connected to the argon tube 6 , for matching argon tubes 6 of different diameters.
[0015] A flow regulating valve 2 is installed between the output end of the gas pressure reducer 3 and the input end of the float flowmeter 1 .
[0016] The working principle of the present invention is: Connect this device to the outlet of the argon pipe 6 via the reducer 5. Open the flow control valve, turn on the argon system switch, and observe whether the float flowmeter scale is consistent with the set flow rate of the argon system. Observe whether the pressure value on the pressure gauge 7 is within a reasonable range compared to the set argon pressure value. If the pressure value displayed by the pressure gauge 7 is significantly lower than the set argon pressure value, it can be confirmed that there is a leak in the relevant pipeline, which can facilitate the investigation of whether there is a problem with the argon system pipeline.
[0017] Matters not described in detail in this invention are all known technologies.
[0018] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.
Claims
1. A device for measuring the actual flow rate of an argon system of a slab caster, characterized by: The device includes a float flowmeter, a gas pressure reducer, a pressure gauge and a connecting nut; the pressure gauge is arranged on one side of the gas pressure reducer; the float flowmeter is connected to the output end of the gas pressure reducer through a pipeline; and the connecting nut is connected to the input end of the gas pressure reducer through a pipeline.
2. The device for measuring the actual flow rate of the argon system of a slab caster according to claim 1, characterized in that: The input end of the connecting nut is provided with a reducing joint.
3. The device for measuring the actual flow rate of the argon system of a slab caster according to claim 1, characterized in that: A flow regulating valve is provided between the gas pressure reducer and the float flowmeter.