Method of fitting material flow curve to adjust cloth
A material distribution and curve technology, which is applied in the field of fitting and adjusting material flow curve distribution, can solve the problems of determining the falling point of the charge, unable to achieve precise control of distribution, etc., and achieve the effect of improving blast furnace operation, improving blast furnace index, and expanding flexibility.
Active Publication Date: 2018-05-08
武汉钢铁有限公司
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Problems solved by technology
[0006] At present, in the setting of the distribution matrix, the inclination angle of the distribution chute is not set as a variable, and it is impossible to adjust the material flow trajectory freely through the free movement of the tilting gear in the range of 0-55°, so it is difficult to adjust the material flow trajectory according to the new distribution. The inclination material flow trajectory is used to determine the charge drop point, and ultimately it is impossible to achieve precise control of the material distribution
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[0025] In order to better explain the present invention, the main content of the present invention is further clarified below in conjunction with specific examples, but the content of the present invention is not limited to the following examples.
[0026] combine figure 1 It can be seen that this embodiment discloses a method for fitting and adjusting the material flow curve, which is implemented in an internal volume of 3200m 3 The blast furnace comprises the following steps:
[0027] 1) Blast furnace distribution evaluation unit: evaluate the two distribution adjustments of the same airflow adjustment, if the two distribution adjustments use different distribution angles respectively, and neither obtains ideal control effects, the ideal control effect is based on the furnace The gas temperature at the top, or the cutting condition of the probe can be judged; if the effect cannot be achieved with a small angle, and other troubles are caused by using a large angle, the cloth...
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The invention discloses a method for adjusting distribution by fitting a material flow curve, and belongs to the technical field of blast furnace distribution operation. According to the adjusting method, actual measurement material flow trajectories of 11 corners are discretized along the horizontal ordinate of a material line, and discretized horizontal ordinate data are established into a trajectory matrix unit. When distribution corners are changed, a new corner trajectory matrix unit is established, and new horizontal ordinates in the new corner trajectory matrix unit are connected to form a new material flow curve of a new corner, so that material flow drop points can be accurately determined. By the adjusting method, blast furnace distribution measuring measures are increased, material flow inclination angles can be changed in a distribution matrix, distribution adjusting flexibility is extended, blast furnace operation is improved, and blast furnace indexes are improved.
Description
technical field [0001] The invention belongs to the technical field of blast furnace material distribution operation, in particular to a method for fitting material flow curves and adjusting material distribution. Background technique [0002] The blast furnace distribution plays a vital role in ensuring the smooth progress of the blast furnace. In the blast furnace distribution process, the tilting angle range (0-55°) of the chute is generally divided into 11 parts manually before the furnace is opened. Set 11 material distributing angles in the tilting interval of the chute, as shown in Table 1 below, use these angles to complete the charging process during the charging process of the furnace, and measure the material flow trajectory corresponding to the angle at the same time, as The basis for post-blast furnace cloth adjustment. [0003] Table 1 sets 11 chute cloth corner positions [0004] serial number 1 2 3 4 5 6 7 8 9 10 1...
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IPC IPC(8): C21B5/00
CPCC21B5/008C21B2300/04
Inventor 陈令坤邹祖桥尹腾
Owner 武汉钢铁有限公司