Sludge flowing state measuring device

A technology for measuring devices and flow states, which is applied in the directions of measuring devices, flow characteristics, instruments, etc., can solve the problems of slow silting process of mud due to its own weight, no norms to follow, and difficulty in forming dense soil, etc.

Inactive Publication Date: 2015-09-16
NANJING HYDRAULIC RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dredging refers to the process of blowing and filling the deposited sediment to the storage yard through hydraulic dredging and other technologies. The dredging of the sediment in my country usually uses a cutter suction dredger to blow and fill the sludge to the designated storage yard through mud pumps and mud pipelines. , the solid-liquid ratio of the sludge dredged by this method is only about 1 / 5, and the concentration is less than 20%. The self-weight desilting process is slow, and it is difficult to form dense soil
Regarding the measurement of sludge fluidity, neither the country nor the industry has specific standards for measuring the fluidity of sludge, let alone the method of dividing the flow state of sludge, which makes the understanding of engineering and technical personnel vague, and there is no standard to follow, resulting in occurrence of engineering problems

Method used

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Examples

Experimental program
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Embodiment 1

[0022] like figure 1 As shown, the measuring device 100 for the flow state of the sludge includes a rotary viscometer 102 for measuring the viscosity characteristics of the sludge, and a sludge fluidity measuring device 101 for measuring the fluidity of the sludge.

[0023] like figure 2 As shown, the mud fluidity measuring device 101 is composed of a truncated cone tube 2 with a small upper part and a larger lower part, a bottom plate 1, a support 3 and a lifting motor 4. The bottom plate 1 is arranged below the truncated cone tube 2, and its area is larger than that of the truncated cone tube. 2 bottom area, the support 3 is connected with the truncated cone pipe 2, and the lifting motor 4 drives the truncated cone pipe 2 to vertically lift through the support 3.

[0024] The truncated cone pipe 2 is mainly used to hold the sludge before the experiment. The truncated cone pipe 2 is made of stainless steel, with upper and lower openings, the upper diameter is 7cm, the lower...

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Abstract

The invention discloses a sludge flowing state measuring device. The sludge flowing state measuring device comprises a rotary-type rotational viscometer which is used for measuring sludge viscosity properties, and a sludge fluidity measuring device; the sludge fluidity measuring device is composed of a truncated cone circular tube, a base plate, a support, and a lifting motor; the base plate is arranged below the truncated cone circular tube; the area of the base plate is larger than the area of the bottom of the truncated cone circular tube; the support is connected with the truncated cone circular tube; and the truncated cone circular tube is driven by the lifting motor to rise and fall vertically. The sludge flowing state measuring device can be used for measuring both sludge fluidity and sludge glutinousness; the two measuring results are taken into comprehensive consideration; and flowing states of sludge are reflected comprehensively.

Description

technical field [0001] The invention relates to the measurement of flow properties of high water content dredged silt in hydraulic engineering and geotechnical engineering, and specifically provides a measurement device for silt flow state. Background technique [0002] With the increase of my country's water conservancy project construction and water environment improvement projects, the amount of dredging projects for rivers, lakes, oceans and other sediments is increasing year by year. For example, the total volume of sediment in Taihu Lake is 1.912 billion m 3 , of which the pollution is serious and the total amount of dredging is more than 35 million m 3 ; During the "Eleventh Five-Year Plan" period of Jiangsu Province, 5 billion yuan was invested to dredge more than 8,000 major rivers in the province, with a total dredging volume of 600 million m3 3 ; The dredged materials discarded into the ocean by our country every year are 100 million m 3 above. The release of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/14
Inventor 黄英豪董婵
Owner NANJING HYDRAULIC RES INST
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