Automatic pipeline-type pulp density detection system and method

A technology for automatic detection of pulp concentration, applied in measuring devices, specific gravity measurement, instruments, etc., can solve the problem that detection accuracy is affected by pulp composition, viscosity, air bubbles, etc. Effect

Inactive Publication Date: 2015-01-28
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a pipeline-type pulp concentration automatic detection system and method, which are used to solve the problem that the existing device is affected by the factor that the pipeline pulp is not full of pipes when sampling, and has strict requirements on the sedimentation of the pulp and the sampling location, and the detection accuracy is affected by the composition of the pulp. , viscosity, and air bubbles

Method used

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  • Automatic pipeline-type pulp density detection system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: as figure 1 As shown, a pipeline type automatic detection system for pulp concentration is composed of automatic pulp sampling device, weighing device and measurement and control device; the automatic sampling device is installed on the pulp pipeline, the weighing device is installed under the automatic sampling device, and the measurement and control device The measurement and control host 1 is installed next to the automatic sampling device or other places that are convenient for observation and operation, and the remaining components of the measurement and control device are installed on site;

[0029] The automatic sampling device includes an actuator 2 and a sampling valve 3; wherein the sampling valve 3 is installed on the pulp pipeline, the actuator 2 is installed above the sampling valve 3, and the output shaft of the actuator 2 is connected to the shaft of the sampling valve 3;

[0030] The weighing device comprises an overflow pipe 4, a cantileve...

Embodiment 2

[0043] Embodiment 2: as figure 1 As shown, a pipeline-type pulp concentration automatic detection system and method, the specific design is as follows:

[0044] It is used in the slurry pipeline transported by the sand pump, the slurry is chalcopyrite, and the ore density is 3.2g / cm 3 , the density of water is 1.0 g / cm 3 , the pulp fineness is 80% (-200 mesh), the pulp pressure is 0.6MPa, the pipe diameter is DN80, and the concentration measurement range is 0-80%.

[0045] Sampling valve 3 has a specification of DN80 and is installed on the slurry pipeline. The model of actuator 2 is UNIC-10, which is installed above sampling valve 3, and its output shaft is connected to the shaft of sampling valve 3 through a shaft connector;

[0046] The material of the slurry container 9 is 316L stainless steel, the upper part is cylindrical (the specification is Φ80X100), the lower part is conical, the outlet diameter is Φ20, the lower part outlet is connected with the slurry discharge s...

Embodiment 3

[0054] Embodiment 3: as figure 1 As shown, a pipeline-type pulp concentration automatic detection system and method, the specific design is as follows:

[0055] Applied in self-flowing slurry pipeline, the slurry is magnetite, and the ore density is 2.9g / cm 3 , the density of water is 1.02 g / cm 3 , the pulp fineness is 70% (-200 mesh), the pipe diameter is DN125, and the concentration measurement range is 0-70%.

[0056] Sampling valve 3 has a specification of DN125 and is installed on the slurry pipeline. The model of actuator 2 is UNIC-20 and is installed above sampling valve 3. Its output shaft is connected to the shaft of sampling valve 3 through a shaft connector;

[0057] The pulp container 9 is made of 314 stainless steel, the upper part is cylindrical (with a specification of Φ100X120), the lower part is conical with a diameter of Φ25, the lower outlet is connected to the slurry discharge solenoid valve 8, and the upper part of the pulp container 9 is covered with a ...

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Abstract

The invention relates to an automatic pipeline-type pulp density detection system and method, and belongs to the field of industrial detection. The system consists of an automatic pulp sampling device, a weighing device and a measurement and control device, wherein the automatic pulp sampling device is arranged on a pulp pipeline; the weighing device is arranged under the automatic pulp sampling device; a measurement and control mainframe of the measurement and control device is arranged beside the automatic pulp sampling device or at the position in which the mainframe can be conveniently observed and operated; the rest parts of the measurement and control device are arranged on site. When being used for sampling, the system and the method are not influenced by the factor that the pipeline is not fully filled with pulp and are not strict to the requirements on pulp precipitation and sampling places, and have the characteristics of being wide in application scope and convenient to install and maintain; the system is capable of automatically detecting periodically, sampling, measuring, calculating and discharging; the detection accuracy is not influenced by the factors such as pulp composition, viscosity and bubbles; the detection system is comparatively independent, so that the relatively high detection accuracy can be obtained, and the comprehensive precision of the detection system is superior to that of a traditional nuclear densitometer.

Description

technical field [0001] The invention relates to a pipeline-type pulp concentration automatic detection system and method, belonging to the field of industrial detection. Background technique [0002] In the industrial production process, it is often necessary to detect the pulp concentration, especially in industrial processes such as metallurgy and mineral processing, it is necessary to detect the pulp concentration in real time, so as to facilitate the adjustment of production operations or realize automatic control. [0003] In the previous beneficiation process, the detection of the pulp concentration required the operator to open the pulp pipeline on site for manual sampling, and then weigh the samples and look up the table to calculate the concentration of the pulp. This method is not only complicated in operation and cumbersome in the working process, but also difficult to accurately detect the pulp concentration in real time, thus affecting production. The artificia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/00G01N9/04
Inventor 于桂明黄宋魏夏正一葛鹏和丽芳
Owner KUNMING UNIV OF SCI & TECH
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