A kind of ramming material for ladle lining and preparation method thereof
A technology for ramming material and ladle, which is applied in the field of ramming material for ladle lining and its preparation, can solve the problems of personal and equipment safety hazards, serious ladle sticking, low safety factor, etc. Reduce sticky slag and improve high temperature resistance
Active Publication Date: 2022-03-01
鄂尔多斯市瀚博科技有限公司
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Problems solved by technology
The ladle structure used in traditional ferrosilicon production is composed of steel shell and lining refractory material. The lining refractory material is usually built with clay bricks. There are many disadvantages in the process of use: for example, the safety factor is low, and ladle accidents or even leakage may occur from time to time. In the ladle accident, the loss of each leaking ladle is at least 10,000 yuan, which brings great hidden dangers to the safety of people and equipment around the molten iron ladle lifting process. At the same time, the molten iron sticks to the ladle seriously. a great waste
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Embodiment Construction
[0037] The raw material composition in the embodiment of the present invention 1-4 is shown in Table 1;
[0038] The preparation method of ramming material for ladle lining described in the embodiment of the present invention 1-4, the steps are:
[0039] (1) Weigh sodium silicate and aluminum polyphosphate according to weight percentage, add 3 times the weight of water according to the weight ratio of 1:3, and heat to 50°C and stir until sodium silicate and aluminum polyphosphate are completely dissolved. In water, form admixture solution;
[0040] (2) Take clay, graphite, fly ash, silicon carbide powder, and chromium slag powder by weight percentage and carry out pre-mixing first, then add silica, high-alumina bauxite and mix to form a batch material, and in the process of mixing, mist Add the admixture solution;
[0041] (3) Take tap water according to batch: the weight ratio of water is 9:1, add in the batch while stirring, the stirring time is 6 minutes, forms wet base r...
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Abstract
The invention relates to a ramming material for ladle inner lining and a preparation method thereof. The mass percent of raw materials is as follows: the silica is 52-57%, the high-alumina bauxite is 20-23%, and the clay is 5-10%. , graphite is 5-15%, fly ash is 0.1-5%, silicon carbide powder is 0.2-5%, chromium slag powder is 0.1-3%, sodium silicate is 0.1-1%, aluminum polyphosphate is 0.1- 1%. The advantages of the present invention: the structural strength is high during use, and there will be no ladle leakage accidents caused by loosening, peeling and other damage during use, which ensures the safety of people and equipment around the ladle during lifting The sticking phenomenon of molten iron avoids the encapsulation of molten iron in slag, improves the recovery rate of molten iron, and greatly improves safety and economy.
Description
technical field [0001] The invention belongs to the technical field of ferrosilicon production, and in particular relates to a ramming material for ladle inner lining and a preparation method thereof. Background technique [0002] In the production of ferrosilicon, the ladle containing molten iron is the main equipment. The quality of the ladle, especially the quality of the internal refractory material, directly affects the safety of the ladle during use (especially the occurrence of ladle wear accidents). , the recovery rate of molten iron and the workload of repairing packages. The ladle structure used in traditional ferrosilicon production is composed of steel shell and lining refractory material. The lining refractory material is usually built with clay bricks. There are many disadvantages in the process of use: for example, the safety factor is low, and ladle accidents or even leakage may occur from time to time. In the ladle accident, the loss of each leaking ladle i...
Claims
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IPC IPC(8): C04B35/66C04B35/14
CPCC04B35/66C04B35/14C04B35/62204C04B2235/3217C04B2235/349C04B2235/425C04B2235/3826C04B2235/3427C04B2235/447C04B2235/9676C04B2235/9615C04B2235/96
Inventor 李胜春宋永宏刘坤仑牛强邸俊明华永才
Owner 鄂尔多斯市瀚博科技有限公司