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Method and device for detecting slag carrying capacity of resistance reducing agent

A detection method and detection device technology, applied in the direction of measuring device, fluid dynamics test, machine/structural component test, etc., can solve the problem of blind application selection of drag reducer, failure to meet expectations, and no detection of drag reducer slag-carrying ability Methods and devices etc.

Pending Publication Date: 2021-05-25
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resistance-reducing performance of drag-reducing agents has formed relevant industry standards, and has standardized and general testing and evaluation methods. However, at present, there is no detection method and device for the slag-carrying ability of drag-reducing agents, so that the application of drag-reducing agents is selected Blind, did not achieve the desired effect

Method used

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  • Method and device for detecting slag carrying capacity of resistance reducing agent
  • Method and device for detecting slag carrying capacity of resistance reducing agent
  • Method and device for detecting slag carrying capacity of resistance reducing agent

Examples

Experimental program
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Effect test

Embodiment 1

[0042] A method for detecting the slag-carrying ability of a drag reducing agent, comprising the following steps:

[0043] A. Prepare the test solution: mix the drag reducer and water with a mass fraction of the drag reducer of 0.05%, configure the test solution, and inject it into the water tank 2, turn on the mixer 1 to mix the test solution evenly;

[0044] B, configuration slag: by mass percentage: 60 order coal slag 30%, 40 order coal slag 40%, 20 order coal slag 30%, configure the coal slag of 1kg mixed grain size, and put into the slag hopper 6;

[0045] C. Slag liquid mixing: turn on the flow pump 5, and adjust the flow rate of the flow pump 5 to 50L / min, so that the test liquid enters the mixing tube 3, wherein the inner diameter of the mixing tube 3 is 25mm; at the same time, pull the regulating plate 12 on the slag feeding funnel 6 to make The cinder is lowered into the mixing tube 3 at a speed of 0.1kg / min, and the turbine mixer 4 in the mixing tube 3 makes the tes...

Embodiment 2

[0050] This embodiment includes the following steps:

[0051] A. Prepare the test solution: mix the drag reducer and water with a mass fraction of 0.1% of the drag reducer, prepare the test solution, and pour it into the water tank 2, turn on the mixer 1 to mix the test solution evenly;

[0052] B, configuration slag: by mass percentage: 60 order coal slag 40%, 40 order coal slag 30%, 20 order coal slag 30%, configure the coal slag of 1kg mixed particle size, and put into the slag hopper 6;

[0053] C. Slag liquid mixing: Turn on the flow pump 5, and set the flow rate of the flow pump 5 to 60L / min, so that the test liquid enters the mixing tube 3, wherein the inner diameter of the mixing tube 3 is 25mm; at the same time, pull the regulating plate 12 on the slag feeding funnel 6, The cinder is lowered into the mixing tube 3 at a speed of 0.1kg / min, and the turbine mixer 4 in the mixing tube 3 makes the test liquid flow in a vortex state, so that the test liquid and the cinder a...

Embodiment 3

[0058] This embodiment includes the following steps:

[0059] A. Prepare the test solution: mix the drag reducer and water with a mass fraction of the drag reducer of 0.5%, configure the test solution, and pour it into the water tank 2, and turn on the mixer 1 to mix the test solution evenly;

[0060] B, configuration slag: by coal slag mass percentage: 60 order coal slag 30%, 40 order coal slag 30%, 20 order coal slag 40%, configure the coal slag of 1kg mixed grain size, and put into the slag hopper 6;

[0061] C. Mixing of slag liquid: turn on the flow pump 5, and set the flow rate of the flow pump 5 to 70L / min, so that the test liquid enters the mixing tube 3, wherein the inner diameter of the mixing tube 3 is 25mm; at the same time, pull the regulating plate 12 on the slag feeding funnel 6, The cinder is lowered into the mixing tube 3 at a speed of 0.1kg / min, and the turbine mixer 4 in the mixing tube 3 makes the test liquid flow in a vortex state, so that the test liquid ...

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Abstract

The invention belongs to the technical field of coal mine resistance reducing agent performance testing. The present invention relates to a method for detecting the slag carrying capacity of the resistance reducing agent which comprises the following steps: preparing a test liquid, preparing slag, mixing the slag and the liquid, simulating working conditions, collecting, and measuring and evaluating. The detection device comprises a liquid preparation device for preparing a test liquid, a slag-liquid mixing device and a working condition simulation device, one end of the slag-liquid mixing device is connected with the liquid preparation device, and the other end of the slag-liquid mixing device is connected with the working condition simulation device; a flow pump is arranged between the liquid preparation device and the slag-liquid mixing device; a slag inlet funnel communicated with the slag-liquid mixing device is arranged on the slag-liquid mixing device; and a collection device is arranged below the working condition simulation device. According to the invention, the working condition simulation device is arranged to simulate the actual working condition, so that the measurement result can directly reflect the slag carrying capacity of the resistance reducing agent under the actual working condition, and a direct guiding effect on selection and application of the resistance reducing agent is achieved.

Description

technical field [0001] The invention belongs to the technical field of performance testing of drag reducing agents in coal mines, and relates to a method and a device for detecting the slag-carrying ability of drag reducing agents. Background technique [0002] Gas is an associated gas in the process of coal generation. Its flammable and explosive characteristics have brought major safety hazards to coal mining. The prevention and control of gas disasters is the top priority of coal mine safety production. However, the geological structure of my country's coal reservoirs is complex, especially the permeability is significantly lower than that of foreign countries, resulting in unsatisfactory gas drainage effects. The anti-permeability measures of the coal seam have played a certain role in promoting the permeability of the coal seam and the effect of gas drainage. [0003] The coal seam hydraulic permeability enhancement measure is to transport high-pressure water to the act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N5/00G01M10/00
CPCG01N33/00G01N5/00G01M10/00
Inventor 熊伟刘延保巴全斌周厚权申凯杨利平廖引秦晓强马钱钱史永涛何俊
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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