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Method for stably controlling stirring states in stirring barrel

A technology of stable control and mixing barrels, applied in mixers with rotating mixing devices, mixing methods, mixer accessories, etc., can solve problems such as not being raised, and achieve the effect of ensuring reliability

Active Publication Date: 2014-12-24
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through detailed research in related fields at home and abroad, it is found that researchers in the related technical field have not proposed a targeted and effective solution. Therefore, the present invention discloses a method based on the weight characteristics of the two-phase flow in the mixing tank. An effective concentration control scheme to achieve stable control of the amount of sand in the mixing tank

Method used

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  • Method for stably controlling stirring states in stirring barrel
  • Method for stably controlling stirring states in stirring barrel
  • Method for stably controlling stirring states in stirring barrel

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Experimental program
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Effect test

Embodiment

[0051] The method for stably controlling the stirring state in the mixing tank of the present invention comprises the following steps:

[0052] 1) Determine the parameters of the initial state of the mixing tank:

[0053] (1) The equivalent coefficient K=6 in the mixing tank, that is, the difference between the average concentration value of all media in the tank and the concentration measurement value at a measuring point 10cm away from the liquid surface of the mixing tank (where the actual measured value is not higher than 15%) The ratio between;

[0054] (2) After the mixing tank 1 is injected with the medium, the time required to reach a stable stirring state is 5 s;

[0055] (3) The mixing tank needs to control the target average concentration value Z 0 =48%, that is, the concentration of the measuring point is N 0 = 8%;

[0056] (4) The volume of the mixing tank is: V 0 = h · ...

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Abstract

Disclosed are a method and a device for stably controlling stirring states in a stirring barrel. The device comprises the stirring barrel, two medium supply pipelines, an output pipeline, a concentration detecting device and control valves, wherein the two medium supply pipelines are led into the stirring barrel, the concentration detecting device is arranged on the upper portion of the stirring barrel, the control valves are arranged on the two medium supply pipelines and the output pipeline respectively and electrically connected to a controller, the concentration detecting device is also electrically connected to the controller, and the controller is used for receiving and processing detecting signals of the concentration detecting device and transmitting control signals to the control valves. The device utilizes concentration values at a certain height in the stirring barrel to perform accurate optical measurement, and media injected into the stirring barrel are accurately controlled by comparing measured values, so that concentration distribution in the stirring barrel is stably controlled, and concentration of mortar finally supplied to the outside is controlled.

Description

technical field [0001] The invention relates to jet cleaning technology, in particular to a method for stably controlling the stirring state in a mixing tank, which is mainly used to effectively control the sand concentration of the mixing tank in a post-mixing jet system, and to realize the control of different types of hard particles Stable control of different concentrations ensures that the sand supply system can stably supply mortar with a specified concentration to the outside, and ensures that the sand supply pipeline does not have too much or too little mortar concentration, thereby achieving strict control over the characteristics of the post-mixing jet. Effectively improve the stability of the post-mixing jet cleaning effect. Background technique [0002] The post-mixed jet cleaning technology uses high-pressure water jets to drive small hard particles, accelerates the hard particles to a high enough speed with a high-pressure water level carrier, and then scours a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F15/04B01F15/02B01F3/12B01F7/16
Inventor 段明南
Owner BAOSHAN IRON & STEEL CO LTD
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