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Device and method for observing pole climbing phenomenon of slag containing titanium

A technology for rod climbing phenomenon and slag is applied in the field of devices for observing the rod climbing phenomenon of titanium-containing slag, so as to achieve the effects of protecting staff, ensuring sealing and heat preservation, and preventing X-ray radiation

Active Publication Date: 2015-12-09
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for the convenience of research, the above research process usually regards titanium-containing slag as a Newtonian fluid. In fact, because of the existence of TiC, TiN and its solid solution Ti(C,N), the titanium-containing slag behaves as a non-Newtonian fluid. Unfortunately, Due to the limitation of high temperature and other conditions, there are very few reports on the non-Newtonian properties of titanium-containing slag

Method used

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  • Device and method for observing pole climbing phenomenon of slag containing titanium
  • Device and method for observing pole climbing phenomenon of slag containing titanium
  • Device and method for observing pole climbing phenomenon of slag containing titanium

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Experimental program
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Effect test

Embodiment 1

[0033] The structure of the device for observing the phenomenon of titanium-containing slag climbing rods is as follows: figure 1 As shown, it includes X-ray generating device 1, X-ray image intensifier 2, video camera 3, high temperature resistance furnace 4, rheometer 7, data acquisition system 8, lead protection room 9, crucible 12, gas protection device 13 and X Ray switch 14; the X-ray generating device 1, X-ray image intensifier 2, video camera 3, high temperature resistance furnace 4 and rheometer 7 are all arranged in the lead protection room 9, and the crucible 12 is arranged in the high temperature resistance furnace 4, the rheometer 7 is arranged above the crucible 12, and the rotating rod 10 of the rheometer 7 is coaxially arranged with the high temperature resistance furnace 4; on the side wall of the high temperature resistance furnace 4, two X-ray The windows are respectively the first X-ray window 5 and the second X-ray window 6, and the first X-ray window 5 an...

Embodiment 2

[0043] Observation also contains the method for titanium slag climbing pole phenomenon, adopts the device of embodiment 1, carries out according to the following steps:

[0044] Step 1: Weigh the ingredients according to the mass percentage in Table 2, and mix them evenly after drying to obtain a slag sample;

[0045] Table 2

[0046]

[0047] Step 2: After putting 140g of slag sample into the crucible, put them together into the high-temperature resistance furnace, open the gas protection device and pass in argon gas to protect the furnace tube, insert the rotary rod of the rheometer into the slag sample, and turn on the high-temperature resistance Furnace, the temperature rises from room temperature 25°C to 1500°C;

[0048] Step 3: Turn on the X-ray switch and adjust the exposure voltage to 120kV. After the picture is clear, turn on the rheometer and set the shear rate to 0s -1 、5.6s -1 、11.2s -1 、16.8s -1 Under the condition of different shear rates, observe the cha...

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Abstract

The invention discloses a device and method for observing the pole climbing phenomenon of slag containing titanium and belongs to the field of the non-Newtonian property of the slag containing titanium. The device comprises an X-ray generating device, an X-ray image intensifier, a camera, a high-temperature resistance furnace, a rheometer, a data acquiring system, a lead protection room and a crucible. The method comprises the steps of conducting mixing to prepare a slag sample; setting instruments, and then increasing the temperature to a specific point; turning on an X-ray switch, regulating the exposure voltage till an image becomes clear, and observing the change of the liquid level of the slag in the crucible at different shearing rates; lowering the temperature, and observing the change of the liquid level of the slag in the crucible along with the change of the temperature at different shearing rates. According to the device, horizontal transmission of X-ray is adopted so that the change of the liquid level of the slag can be monitored; X-ray is made to penetrate through the high-temperature resistance furnace and the crucible in a low-loss mode, and meanwhile, sealed heat insulation of the high-temperature resistance furnace is guaranteed; by the adoption of the lead protection room, X-ray radiation can be effectively prevented, and working staff can be protected. According to the method, whether the pole climbing phenomenon occurs on the slag containing titanium is verified by observing the change of the liquid level of the slag.

Description

technical field [0001] The invention belongs to the field of non-Newtonian properties of titanium-containing slag, in particular to a device and method for observing the phenomenon of titanium-containing slag climbing rods. Background technique [0002] When the blast furnace smelts vanadium-titanium magnetite, the TiO2 in the slag is reduced to TiC (3140±90°C), TiN (2950±50°C) and its solid solution Ti(C, N), which brings a series of technical problems to the blast furnace production , such as slag thickening, large iron loss, foamy slag, etc. In recent years, scholars have done a series of research on the physical and chemical properties of titanium-containing slag, such as the easy thickening of titanium-containing slag, foamy slag, etc., and have achieved a series of research results. However, for the convenience of research, the above research process usually regards titanium-containing slag as a Newtonian fluid. In fact, because of the existence of TiC, TiN and its so...

Claims

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Application Information

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IPC IPC(8): G01N23/04G01N11/14
Inventor 江涛岳宏瑞薛向欣段培宁
Owner NORTHEASTERN UNIV