Temperature control type gravity dummy ingot semi-continuous casting equipment

Abstract

The utility model discloses a temperature control type gravity dummy ingot semi-continuous casting device which comprises a hoistway, an elevator, a dummy ingot platform, a dummy ingot rod, a continuous casting crystallizer, a telescopic air cylinder, an arc-shaped baffle and a thermal imager, the hoistway is provided with the elevator, the dummy ingot platform is arranged at the top end of the elevator, the dummy ingot rod is arranged on the dummy ingot platform, a well cover is arranged at a hoistway opening, and the continuous casting crystallizer is arranged on the well cover. A continuous casting crystallizer is installed on the well lid, a circle of secondary cooling water outlets are formed in the outlet side of the continuous casting crystallizer, a telescopic air cylinder is horizontally arranged at the bottom of the well lid, and an arc-shaped baffle is horizontally installed at the front end of the telescopic air cylinder. By means of the mode, the temperature control type gravity dummy ingot semi-continuous casting device is provided, the thermal imager is arranged in the secondary cooling area of the crystallizer, a magnesium ingot temperature field is monitored in real time, and therefore the ingot outlet pulling speed is accurately regulated and controlled, finally the safety of magnesium ingot semi-continuous casting production is improved, and the product quality and the output efficiency of casting blanks are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to non ferrous alloy semi continuous casting equipment field especially relates to a temperature control type gravity dummy bar semi continuous casting equipment. BACKGROUND

[0002] The semi continuous casting process is usually determined by artificial experience, and the magnesium ingot pulling speed is manually controlled. The operator usually judges whether the magnesium ingot core is completely cooled and solidified according to experience. If the ingot pulling speed is too fast, magnesium liquid leakage will easily occur, which will cause safety hazards and low product quality. If the ingot pulling speed is too slow, the quality of the magnesium ingot will also be reduced, and the crystallizer will be seriously blocked. Therefore, by detecting the reasonable related process parameters of the semi continuous casting equipment, dynamically and accurately controlling the ingot pulling speed is one of the key factors to improve the safety, quality stability and production efficiency of magnesium alloy semi continuous casting production. SUMMARY

[0003] The utility model mainly solves the technical problem to provide a temperature control type gravity dummy bar semi continuous casting equipment, sets up the thermal imager in the two cold zones of crystallizer, real time monitoring magnesium ingot temperature field to accurate control the ingot pulling speed, finally promoted the safety of magnesium ingot semi continuous casting production, improved the product quality and output efficiency of the casting blank.

[0004] To solve the above technical problem, one technical scheme of the utility model is provided: a temperature control type gravity dummy bar semi continuous casting equipment, including shaft, elevator, dummy bar platform, dummy bar rod, continuous casting crystallizer, telescopic cylinder, arc baffle, thermal imager, the shaft is provided with the elevator, the top of the elevator is provided with the dummy bar platform, the dummy bar platform is provided with the dummy bar rod, the shaft mouth is provided with the well lid, the well lid is installed with the continuous casting crystallizer, the outlet side of the continuous casting crystallizer is provided with a circle of two cold water discharge ports, the bottom of the well lid is horizontally provided with the telescopic cylinder, the front end of the telescopic cylinder is horizontally installed with the arc baffle, the arc baffle is matched in the gravity direction of two cold water discharge port and is used for intercepting the two cold water curtain falling from two cold water discharge port, the shallow platform is arranged in the shaft, and the thermal imager is arranged on the shallow platform and faces the two cold water curtain.

[0005] In a preferred embodiment of the utility model, the center of the inner circle of the arc baffle is aligned with the center of the outlet of the continuous casting crystallizer, and the inner diameter of the arc baffle is equal to the diameter of the outlet of the continuous casting crystallizer.

[0006] In a preferred embodiment of the utility model, the arc baffle is provided with a drainage groove, and the drainage groove is led out from both ends of the arc baffle.

[0007] In a preferred embodiment of the utility model, the shallow platform is horizontally built along the inner wall of the shaft and is provided with an avoidance opening matched with the two cold water discharge port.

[0008] In one preferred embodiment of the utility model, the elevator and the thermal imager are electrically connected with PLC, the continuous casting crystallizer is connected with a cooling water source, and a magnesium water pouring pipe is arranged above the continuous casting crystallizer.

[0009] The utility model discloses a kind of temperature control type gravity ingot semi-continuous casting equipment, thermal imager is arranged in the two cooling zones of crystallizer, magnesium ingot temperature field is monitored in real time, so as to accurately regulate and control the speed of drawing out ingot, finally improve the safety of magnesium ingot semi-continuous casting production, improve the product quality and output efficiency of casting blank. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, wherein:

[0011] Fig. 1 It is the overall structure diagram of a temperature control type gravity ingot semi-continuous casting equipment of the utility model;

[0012] Fig. 2 It is the structure diagram of well lid bottom;

[0013] Fig. 3 It is the position relation of magnesium ingot and arc baffle from top view. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be described clearly and completely as follows, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0015] As shown in Figs. 1-3 The embodiments of the utility model include:

[0016] The application discloses a temperature control type gravity dummy bar semi-continuous casting equipment, which comprises a shaft 1, a lift 2, a dummy bar platform 3, a dummy bar 4, a continuous casting crystallizer 5, an expansion cylinder 19, an arc-shaped baffle 6 and a thermal imager 7, the shaft 1 is provided with the lift 2, the top end of the lift 2 is provided with the dummy bar platform 3, the dummy bar platform 3 is provided with the dummy bar 4, the shaft 1 is provided with a shaft cover 8, the shaft cover 8 is provided with the continuous casting crystallizer 5, the outlet side of the continuous casting crystallizer 5 is provided with a circle of secondary cooling water outlets 9, the bottom of the shaft cover 8 is horizontally provided with the expansion cylinder 19, the front end of the expansion cylinder 19 is horizontally provided with the arc-shaped baffle 6, the arc-shaped baffle 6 is matched in the gravity direction of the secondary cooling water outlets 9 and used for intercepting the secondary cooling water curtain 100 falling from the secondary cooling water outlets 9, and the shaft 1 is provided with a shallow platform 10, and the shallow platform 10 is provided with the thermal imager 7 which faces the secondary cooling water curtain 100.

[0017] Further, the arc-shaped baffle 6 is provided with a drainage groove 11 which is led out from both ends of the arc-shaped baffle 6.

[0018] Further, the arc-shaped baffle 6 is provided with a drainage groove 11 which is led out from both ends of the arc-shaped baffle 6.

[0019] Further, the shallow platform 10 is horizontally built along the inner wall of the shaft 1 and is provided with an avoiding opening which is matched with the secondary cooling water outlets 9.

[0020] Further, the lift 2 and the thermal imager 7 are externally connected with a PLC, the continuous casting crystallizer 5 is externally connected with a cooling water source, and a magnesium water pouring pipe is arranged above the continuous casting crystallizer 5.

[0021] The thermal imager 7 is used for realizing real-time monitoring on the temperature field of the magnesium ingot 200, can provide rich data support for optimization of the magnesium alloy semi-continuous casting process and safe production, and has important significance for continuously optimizing the magnesium alloy semi-continuous casting production process and stabilizing product quality.

[0022] In the semi-continuous casting process, the liquid phase magnesium water enters the one-cooling zone of the crystallizer and is cooled to form a paste-shaped zone, the paste-shaped magnesium water of the one-cooling zone is further cooled to form a solid phase zone in the two-cooling zone of the crystallizer, and the magnesium ingot in the solid phase zone is stable and can be pulled out of the crystallizer along the dummy bar 4.

[0023] In the process of pulling out the crystallizer, the solidified ingot and the molten metal liquid descend with the dummy bar, while the new magnesium water melt continues to flow into the upper part of the secondary cooling zone, and the ingot with a stable solidification shell is pulled out of the secondary cooling zone. The cooling water falls from the crystallizer secondary cooling water outlet 9, forming a secondary cooling water curtain (also known as secondary cooling water), and the magnesium ingot enters the secondary cooling water impact area (i.e. the secondary cooling water curtain area) below the crystallizer after leaving the crystallizer, is directly impacted by the cooling water, and the heat is dissipated, and the solidification layer continues to thicken, and finally solidifies. After the process reaches stability, the process continues, and after the length of the ingot reaches the required length, the casting is completed, the ingot is removed, and the next casting process is prepared.

[0024] Before the start of semi-continuous casting, the dummy bar 4 is located in the continuous casting crystallizer 5, and when semi-continuous casting starts, the continuous casting crystallizer 5 starts to inject cooling water, which flows out from the secondary cooling water outlet 9, forming a tubular secondary cooling water curtain. When the magnesium water is poured into the continuous casting crystallizer 5, the magnesium water is cooled into magnesium blocks in the secondary cooling zone, and then the dummy bar 4 starts to descend, and under the action of gravity, the magnesium blocks in the secondary cooling zone are pulled out (descend) from the continuous casting crystallizer 5 with the dummy bar 4, at which time the paste-like magnesium water in the primary cooling zone is cooled and solidified into magnesium blocks. In this way, as long as a certain amount of magnesium water is continuously poured, semi-continuous casting magnesium ingots can be obtained.

[0025] The prior art usually uses visual observation to manually control the pulling speed of the magnesium ingot, and the operator usually judges whether the core of the magnesium ingot is completely cooled and solidified according to experience. If the pulling speed is too fast, the magnesium paste will leak, if the descending speed of the elevator is slightly faster, the paste-like magnesium water in the primary cooling zone will be deformed and elongated, and if the pulling speed is slightly slower, the paste-like magnesium water in the primary cooling zone will solidify prematurely and block the crystallizer, causing the magnesium water to overflow.

[0026] The thermal imager 7 of the present device is arranged in the secondary cooling zone and is equipped with an upper industrial computer system, which has a data acquisition and processing unit, a production equipment information interaction module, a client HMI, and the like. The complete system can form a magnesium alloy semi-continuous casting secondary cooling zone magnesium ingot temperature field online monitoring system, which can realize real-time detection of the temperature field of the alloy semi-continuous casting secondary cooling zone magnesium ingot by non-contact means, the collected data can be directly expressed in the form of images to intuitively show the state of the real-time temperature field, and historical data can be cyclically recorded and related records can be traced back.

[0027] The cooling water discharged from the crystallizer is intermittently intercepted by the telescopic cylinder 19, which opens a gap in the falling secondary cooling water curtain for the thermal imager 7 to collect magnesium ingot temperature data at regular intervals. Under the precise control of the temperature, the descending speed of the dummy bar platform 3 can be dynamically adjusted.

[0028] In conclusion, the utility model provides a kind of temperature control type gravity guide ingot semi-continuous casting equipment, and the thermal imager 7 is arranged in the two cooling zones of crystallizer, and the magnesium ingot temperature field is monitored in real time, so as to accurately control the ingot pulling speed, finally improve the safety of magnesium ingot semi-continuous casting production, improve the product quality and output efficiency of casting blank.

[0029] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification content, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A temperature-controlled gravity starter semi-continuous casting apparatus, characterized by, The utility model relates to a continuous casting crystallizer, which comprises a shaft, a lift, a dummy platform, a dummy bar, a continuous casting crystallizer, a telescopic cylinder, an arc-shaped baffle and a thermal imager, wherein the shaft is provided with the lift, the top end of the lift is provided with the dummy platform, the dummy platform is provided with the dummy bar, the shaft opening is provided with a shaft cover, the shaft cover is installed with the continuous casting crystallizer, the outlet side of the continuous casting crystallizer is provided with a circle of secondary cooling water outlet, the bottom of the shaft cover is horizontally provided with the telescopic cylinder, the front end of the telescopic cylinder is horizontally installed with the arc-shaped baffle, the arc-shaped baffle is matched in the gravity direction of the secondary cooling water outlet and is used for intercepting the secondary cooling water curtain falling from the secondary cooling water outlet, a shallow platform is arranged in the shaft, and the shallow platform is provided with the thermal imager which is opposite to the secondary cooling water curtain.

2. The temperature-controlled gravity-struck ingot semi-continuous casting apparatus according to claim 1, characterized by, The center of the inner circle of the arc-shaped baffle is aligned with the center of the outlet of the continuous casting crystallizer, and the inner diameter of the arc-shaped baffle is equal to the diameter of the outlet of the continuous casting crystallizer.

3. The temperature-controlled gravity-struck ingot semi-continuous casting apparatus according to claim 1, characterized by, The arc-shaped baffle is provided with a drainage groove which is led out from both ends of the arc-shaped baffle.

4. The temperature-controlled gravity-struck semi-continuous casting apparatus according to claim 1, wherein The shallow platform is horizontally built along the inner wall of the shaft and is provided with an avoiding opening which is matched with the secondary cooling water outlet.

5. The temperature-controlled gravity-struck semi-continuous casting apparatus according to claim 1, wherein The lift and the thermal imager are electrically connected with a PLC, the continuous casting crystallizer is connected with a cooling water source, and a magnesium water pouring pipe is arranged above the continuous casting crystallizer.

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