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Strength measuring instrument for measuring needle coke strength and testing method thereof
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A strength measurement, needle coke technology, applied in the direction of strength characteristics, the use of stable tension / pressure test material strength, instruments, etc., can solve the problem of no needle coke strength setting press, needle coke collection, measurement standards Inconsistency and other problems, to achieve high accuracy of measurement results, high repeatability, and improve the effect of consistency
Pending Publication Date: 2019-07-05
SHANDONG YIDA NEW MATERIAL
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[0003] The performance index of needle coke is the most critical strength index, which plays a decisive role in the performance of products produced using needle coke. In the prior art, there is no unified experimental equipment for the strength index of needle coke, and presses are mainly used. , but during the use of the press, there is no press specially designed for the intensity setting of the needle coke, which leads to various problems in the use of the press, such as inconsistent collection and measurement standards of the needle coke after crushing Wait
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Embodiment 1
[0039] Such as figure 1 As shown, the present invention provides a strength tester for measuring the strength of needle coke, including a pressure tester body 1,
[0040] The pressure testing machine body 1 includes a base 2. The upper surface of the base 2 is welded with a bearing platform 3 and vertical rods 4 located on both sides of the bearing platform 3. The vertical rods 4 are attached to the opposite side of the bearing platform 3 by welding. On the side
[0041] The two vertical rods 4 are provided with slideways 5 on opposite sides, a horizontally arranged horizontal rod 6 is provided between the two vertical rods 4, and the two ends of the horizontal rod 6 are respectively placed on the sliding surfaces of the two vertical rods 4 In the road 5, the cross bar 6 moves up and down along the vertical bar 4;
[0042] In order to improve the stability of the strength tester during the pressing process, a horizontal beam 7 is welded between the two vertical rods 4, and the hori...
Embodiment 2
[0051] The method for testing the strength of needle coke using the strength tester provided in Example 1, is as follows:
[0052] (1) Select 3-6 mesh needle coke, weigh 102.38g, and place it in the cavity of press block A for use;
[0053] (2) Turn on the strength tester and apply pressure to the needle coke. The process is: pressurize the needle coke to 20kN at a pressurizing speed of 100N / S, hold the pressure for 1 min, release the pressure, turn off the strength tester, and reserve;
[0054] (3) Remove the briquette A, and pour out the needle coke inside, pass through a 6-mesh sieve, collect the sieve, weigh it, weigh 50.25g, calculate the residual needle coke 3-6 mesh according to the following formula proportion,
[0055]
Embodiment 3
[0057] The method for testing the strength of needle coke using the strength tester in Example 1 is as follows:
[0058] (1) Select the same batch of needle coke with 3-6 mesh as in Example 2, weigh 99.24g, and place it in the cavity of compact A for use;
[0059] (2) Turn on the strength tester and apply pressure to the needle coke. The process is: pressurize the needle coke to 20kN at a pressure speed of 90N / S, hold the pressure for 1 min, release the pressure, turn off the strength tester, and reserve;
[0060] (3) Remove the briquette A, pour out the needle coke inside, pass through a 6-mesh sieve, collect the sieve, weigh it, weigh 49.08g, and calculate the residual needle coke 3-6 mesh according to the following formula proportion,
[0061]
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Abstract
The invention provides a strength measuring instrument for measuring needle coke strength and a testing method thereof. The strength measuring instrument comprises a pressure testing machine body provided with a base, wherein a bearing platform and vertical rods arranged on both sides thereof are fixed on the base; slideways are arranged on opposite side surfaces of the two vertical rods, and bothends of a cross rod are placed in the slideways of the two vertical rods respectively; the upper end portion of at least one vertical rod is provided with a cylinder, and a telescopic end of the cylinder is connected with the end portion of the cross rod; the bearing platform is provided with a pressing block A, and the pressing block A comprises a bottom plate and surrounding plates; the cross rod is provided with a pressing block B to be used with the pressing block A cooperatively, vertical center lines of the pressing block A and the pressing block B are positioned on the same straight line, and the inner circumference length of the pressing block A is the same as the outer circumference length of the pressing block B; and a pressure sensor is arranged on the lower surface of the pressing block B. The strength measuring instrument has the advantages of consistent measurement standards for the needle coke strength, high accuracy rate of measurement results and high targeted property, and the testing method has the advantages of simple operation and convenient popularization and application.
Description
Technical field [0001] The invention relates to the technical field of needle coke strength measurement, in particular to an intensity tester for measuring the strength of needle coke and a testing method thereof. Background technique [0002] Needle coke is a kind of porous solid. According to different raw materials, needle coke can be divided into oil-based needle coke and coal-based needle coke. Needle coke produced from petroleum residue as raw material is oil-based needle coke; needle coke produced from coaltarpitch and its fractions is coal-based needle coke. Needle coke is used as an important raw material in the carbon industry in the manufacture of graphite electrodes. In its application, the performance of the obtained product is mainly determined by the performance of the needle coke itself. Therefore, in the production process and use It is of great significance to measure the performance of needle coke during the process. [0003] The performance index of needle c...
Claims
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Application Information
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