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A Pulping Process of Continuous Casting Mold Mold Flux

A continuous casting mold and mold slag technology, applied in the field of mold slag preparation, can solve problems such as segregation of carbonaceous materials, and achieve the effects of enhancing surface tension, rational space design, and preventing flocculation.

Active Publication Date: 2019-04-05
HENAN XIBAO METALLURGICAL MATERIALS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the technical problem to be solved by the present invention is to provide a pulping process for continuous casting mold flux, which can effectively solve the problem of segregation of carbonaceous materials in the continuous casting mold flux during the pulping process, and ensure protection The effective carbon concentration of the slag improves the performance of the mold slag

Method used

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  • A Pulping Process of Continuous Casting Mold Mold Flux
  • A Pulping Process of Continuous Casting Mold Mold Flux
  • A Pulping Process of Continuous Casting Mold Mold Flux

Examples

Experimental program
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Effect test

Embodiment 1

[0033] refer to Figure 2~4, a pulping process of continuous casting crystallizer powder, which is completed by using a pulping machine and a water mill in sequence. The structure of the pulping machine used is as follows: the pulping machine includes a pulping bin 4, a driving mechanism 5 and a stirring mechanism , the upper part of the pulping bin is provided with a feed inlet 9 and a water inlet 10, and the lower part is provided with a discharge port 11, and the water inlet and the outlet are respectively provided with flowmeters, and any cross section of the pulping bin is a regular octagon shape, the driving mechanism is arranged on the upper part of the pulping bin and is connected with the stirring mechanism, the stirring mechanism includes a stirring shaft 6 and a stirring impeller 7 arranged at the end of the stirring shaft, and the stirring impeller includes The paddles 8 are evenly distributed along the radial direction of the stirring shaft at an angle of 120°, th...

Embodiment 2

[0039] refer to Figure 3~4 , a pulping process of continuous casting mold powder, which is completed by using a pulper and a water mill in turn. The structure of the pulper used is different from that of Example 1, wherein:

[0040] The projected length of the paddle 8 at the bottom of the pulping silo is less than the vertical distance from the center of the bottom cross section of the pulping silo to any side.

[0041] Under this structure, the paddles can be extended into the bottom of the pulping bin for operation, so that the mold slag material at the bottom can be turned up to achieve full mixing.

Embodiment 3

[0043] refer to figure 1 , a pulping process of continuous casting mold powder, which is completed by using a pulper and a water mill in sequence, wherein:

[0044] The height difference between the water mill and the pulping machine is 20-100 cm.

[0045] At the beginning of the process improvement, the present invention uses a pressure pump to pump the slurry from the pulper to the water mill, so that no civil engineering reconstruction or platform support is required, which is also a common method in the existing mold slag water mill pulping process. However, the present invention maintains a height difference of 20 to 100 millimeters between the water mill and the pulp machine after reasonable planning of the pulping machine, water mill and the barrel to be sprayed, and the outlet of the water mill is positioned at the bottom of the barrel to be sprayed. Above, not only the power consumption is saved, but also the cost of civil engineering and platform construction is opt...

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Abstract

The invention provides a slurrying technology for continuous casting crystallizer casting powder and belongs to the technical field of preparation methods of casting powder. The slurrying technology for the continuous casting crystallizer casting powder comprises the following steps that firstly, all raw materials are fed into a slurrying machine, the quantity of the fed raw materials accounts for 45%-55% of the capacity of the pulping machine, water is added, stirring is conducted for 45 minutes or above, the raw materials are evenly mixed, and then slurry is obtained; the obtained slurry flows into a water mill at the flow rate of 200-240 kg / min, steel balls are added to the water mill, the slurry should just submerge the steel balls, the steel balls are stirred through a grinding rod to impact one another, and then a carbon material in the slurry generates friction and collides with other materials. By the adoption of the slurrying technology for the continuous casting crystallizer casting powder, the segregation problem of the carbon material can be effectively solved, and the casting powder is protected against the layering phenomenon and the sediment phenomenon in the slurrying process and the to-be-sprayed process.

Description

technical field [0001] The invention relates to the technical field of preparation methods of mold flux, in particular to a pulping process of mold flux for continuous casting molds. Background technique [0002] my country's metallurgical industry is developing rapidly, and continuous steel casting technology has become one of the main processes in modern steel production. Accelerating the development of continuous steel casting technology and improving its scientific and technological level are important measures to realize the structural optimization of my country's iron and steel industry. The mold is the heart of the continuous casting machine, and the mold slag of the continuous casting mold is an important metallurgical material to ensure the smooth production of the continuous casting machine and the quality of the continuous casting slab. With the wide application of high-efficiency continuous casting and continuous casting and rolling technologies, iron and steel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/111
CPCB22D11/111
Inventor 李伟锋李书成谢长武宋志刚余海洋
Owner HENAN XIBAO METALLURGICAL MATERIALS GROUP
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