Apparatus used for measuring filling slurry pipeline resistance loss parameter and method thereof

Abstract

An apparatus used for measuring a filling slurry pipeline resistance loss parameter and a method thereof are disclosed. The apparatus comprises an L-shaped pipe, a stirring device, a speed regulation pressure pump, an electromagnetic flowmeter, a moving support seat and a conveying flexible pipe. The stirring device and the speed regulation pressure pump are installed on and fixed to the moving support seat. The stirring device is arranged below a tail end of a horizontal segment of the L-shaped pipe. The horizontal segment of the L-shaped pipe is formed by several short circuits. Internal diameters of each part of the L-shaped pipe are the same. A top end of a vertical segment of the L-shaped pipe is provided with a feed hopper. The feed hopper is provided with a limiting line. One end of the speed regulation pressure pump is connected to the stirring device and the other end is connected to the feed hopper through the conveying flexible pipe. The electromagnetic flowmeter is installed on the conveying flexible pipe. The invention also comprises a method of measuring the filling slurry pipeline resistance loss parameter. By using the apparatus and the method of the invention, measurement accuracy is high; calculating is simple; a land occupation area is small; a test period is short; test cost is low and material adoption is less.

Description

technical field [0001] The invention relates to a method and special equipment for measuring resistance loss parameters, in particular to a device and method for measuring resistance loss parameters of filling slurry pipelines. Background technique [0002] With the prominence of resource utilization and environmental protection issues, the requirements for mine solid waste discharge, surface protection, resource recovery rate, etc. are increasing day by day. As the most important technical means to solve the above problems, mine filling has been widely used in the field of mines at home and abroad. . The main requirements for mine filling include: (1) A low-cost, high-quality filling body is formed after filling; (2) The filling does not cause pollution to the underground environment; (3) Reduce the dehydration amount of underground filling. The above requirements mean that it is necessary to increase the concentration of the filling slurry as much as possible when filling...

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Problems solved by technology

[0003] In the prior art, there are mainly two methods for measuring the resistance loss parameters of the filling slurry pipeline: one is to use the ring pipe simulation test to measure the pipeline resistance loss of the slurry. Experimental system, the utility model connects the material pool, stirring device, test pipeline and delivery pipeline into a circulation loop. Although it can complete the test of slurry performance parameters, the loop pipe simulation test requires the establishment of a large-scale test system, and also requires The installation of delivery pumps and a large number of test equipment also needs to occupy a large test site and consume a large amount of test materials, and the test period is long and the test cost is high; the other is to measure the rheological properties of the slurry, and then through the structure Theoretical calculation of the fluid model to determine the pipeline resistance loss under different working conditions, such as a filling mine pipeline transportation test method and special equipment announced by CN102507138A and a method for testing the fluid rheological parameters of the full tailings structure published by CN101776514A method and device, wherein CN102507138A published method and equipment theoretical calculation is relatively cumbersome, and the slurry concentration also needs to be "65%-74%", the scope of application is narrow, the method and device published by CN101776514A through the determination of the whole tailings slurry The average flow velocity of the full tailings slurry under two different angles of the delivery pipe is used to calculate the rheological parameters of the full tailings structure fluid. The calculation complexity is high and the accuracy is low, and the length of the delivery pipe is 2500 ~4000mm, it takes up a lot of space, and requires a lot of slurry volume, and more materials are used

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