A test chamber for measuring the variation of pulverized coal deposition with ballast depth

A technology of depth change and test chamber, applied in the direction of analyzing materials, instruments, etc., to achieve the effect of simple and practical structure, convenient movement and easy installation

Active Publication Date: 2022-03-18
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no such test chamber

Method used

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  • A test chamber for measuring the variation of pulverized coal deposition with ballast depth
  • A test chamber for measuring the variation of pulverized coal deposition with ballast depth
  • A test chamber for measuring the variation of pulverized coal deposition with ballast depth

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Such as figure 1 , figure 2 As shown, a test box for measuring the variation of pulverized coal deposition with the ballast depth includes an upper cover 4, a box body and a base 5. Bolt fixing holes are arranged around the upper cover 4, and the box body includes four layers of vertically connected screens. Box 1, screen box 1 includes a cylinder wall 13 and a sieve plate 2, the sieve plate 2 is located at the bottom of the cylinder wall 13, the cylinder wall 13 and the sieve plate 2 are sealed and connected, and the side of the sieve plate 2 is provided with an insert for the insert plate 9 to enter and exit. Hole 7, the bottom end of the lowermost cylinder wall 13 of the test box is sealed and connected with the base 5; during the test, the test box is fixed on the vibration table, there is no insert plate 9 in the jack hole 7, and the uppermost screen box ...

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Abstract

The invention discloses a test box for measuring the change of coal powder deposition amount with ballast depth, which belongs to the technical field of rail transit test equipment; it provides a test box with simple structure and convenient installation for measuring the change of coal powder deposition amount with ballast depth; The technical solution is: the test box includes an upper cover, a box body and a base. The box body includes several layers of vertically connected sieve boxes. The sieve box includes a cylinder wall and a sieve plate. The sieve plate is located at the bottom of the cylinder wall. Sealed connection, the side of the sieve plate is provided with a socket for the inserting plate to enter and exit, and the bottom of the bottom wall of the test box is sealed with the base; during the test, the test box is fixed on the vibration table, and there is no hole in the socket. Put the ballast and gravel into the screen box of each layer, put coal powder and ballast gravel into the top screen box, start the vibrating table, and close the vibrating table after the specified time In the holes, the coal powder remaining in each screen box and on the base is weighed.

Description

technical field [0001] The invention discloses a test box for measuring the variation of coal powder deposition amount with ballast depth, belonging to the technical field of rail transit test equipment. Background technique [0002] In ballasted railway traffic, under the long-term vibration of the train load, the train will scatter a large amount of coal dust, and the non-sticky coal dust particles will gradually deposit downward along the intergranular gaps, and the grids are mostly buried in the The connection between crushed stone ballast and bottom ballast. In the long run, the reinforcement-soil interface is more susceptible to dirt damage, which limits the full play of the reinforcement performance, and causes hazards such as uneven ballast settlement on the ballast bed, seriously affecting railway safety. The study of the test chamber that reveals the variation of coal powder deposition with ballast depth can effectively explain the law of coal dust and other dirt ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/04
CPCG01N15/04
Inventor 苗晨曦李杰王永宝靳瑾秦鹏举
Owner TAIYUAN UNIV OF TECH
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