Dynamical system for loadage of grinding body in cylinder type ball mill and application method of dynamical system

A dynamic system and application method technology, applied in grain processing and other directions, can solve problems such as affecting production efficiency and product quality, mechanical damage to the main shaft of the ball mill, and consumption of the ball mill lining plate of the grinding machine.

Active Publication Date: 2012-07-25
西安蓝海机械仪表成套有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the loading of the grinding body in the barrel ball mill is in a state of regular quantitative addition; irregular and irregular addition and other unscientific and disorderly additions, which not only affect the production efficiency and product quality, but also affect the production energy consumption. and the ball mill liner consumption have a greater impact, and there are also cases where excessive addition leads to mechanical damage to the ball mill spindle

Method used

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  • Dynamical system for loadage of grinding body in cylinder type ball mill and application method of dynamical system
  • Dynamical system for loadage of grinding body in cylinder type ball mill and application method of dynamical system
  • Dynamical system for loadage of grinding body in cylinder type ball mill and application method of dynamical system

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Embodiment 1

[0113] Furnace 2# of a power plant is equipped with 2 cylindrical ball mills, the model is DTM320 / 580 steel ball coal mill, the grinding body is steel ball, the rated loading capacity of steel ball is 50t, and the rated current is 88A. The no-load current of the coal mill before transformation is 55-58A, and the operating current is 63-66A. The method of adding steel balls is to estimate the addition method based on the no-load current every week. Select 70% of the rated initial load of balls, and start with 35t, for dynamic optimization of the grinding body.

[0114] according to figure 1 As shown, add material level measuring point, ball adding machine and pulverizing optimization control system.

[0115] according to figure 2 As shown, select the maximum output as the target parameter, optimize the milling system, and select the steel ball increment δ Q Take 0.5t; the rated output of the ball mill is 60t / h, θ Y Take the rated value of 0.3t / h; to obtain the current I i...

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Abstract

The invention discloses a method for detecting loadage of a grinding body in a cylinder type ball mill. The method can dynamically optimize the loadage of the grinding body according to an optimization object and obtain a non-load current or power and a knee current or power under optimal loadage of steel balls. During the follow-up running process, a procedure captures the knee current or power and the non-load current or power, estimates loss of the grinding body according to deviation, outputs an additive amount of the steel balls as required and add the steel balls through a ball adding machine according to the additive amount of the steel balls, so as to realize dynamically automatic addition of the grinding body. The dynamical system and the application method provided by the invention have the advantages that the optimal loadage of the grinding body can be optimized, so that the disadvantages that influence on production efficiency and product quality and loss of the steel balls due to excessive or too small loadage of the grinding body amount are avoided; the grinding body can be added scientifically, so that the disadvantages brought by addition in a fixed period and a fixed amount or in an irregular period and an irregular amount are avoided; and the labor intensity of workers can be reduced.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a method and system for dynamically managing the loading capacity of grinding bodies in a barrel ball mill. Background technique [0002] Barrel ball mills are widely used in electric power, building materials, mining metallurgy, ceramics and other industries. The amount of grinding body in the barrel ball mill not only affects the quality and production efficiency of the product, but also has a great influence on the energy consumption of production. [0003] The grinding body in the barrel ball mill belongs to the grinding medium, which is driven by the rotation of the barrel of the ball mill, or thrown down after being lifted, impacting the material, and crushing the material; or passing between the grinder and between the grinding body and the barrel Extrusion and friction, finely grind the material, and finally realize the grinding of the material. The grinding b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C25/00B02C17/10
Inventor 崔栋刚
Owner 西安蓝海机械仪表成套有限责任公司
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