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On-line pellet strength detection system and method

A technology of strength detection and pelletizing, which is applied in the field of online pellet strength detection system, can solve problems such as inability to reflect pellets and pellet strength, and achieve the effect of ensuring production quality and safe and normal operation

Pending Publication Date: 2017-02-22
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Disadvantages of the prior art: both the drop method and the static pressure test are static tests, which can only be used as reference data for the strength of the pellets, and cannot reflect the real situation of the pellets in the production process of the new process of regenerative gas-fired high-temperature fused calcium carbide production, because in During the production process, both cold pellets and hot pellets are dynamic. They have to go through multiple lifting, transfer, drop, and the pellets wear each other. Therefore, the static detection data of the drop method and static pressure detection cannot reflect the production process. The Reality of Medium Pellet Strength

Method used

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  • On-line pellet strength detection system and method
  • On-line pellet strength detection system and method
  • On-line pellet strength detection system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Take the process of producing 200,000 tons of calcium carbide per year as an example. On-line detection of pellet strength by rotating drum method, each sample is 20㎏.

[0041] Among them, abrasion resistance = (weight of the object on the sieve ÷ 20) × 100%; crushing strength = (weight of the object under the sieve ÷ 20) × 100%.

[0042] The requirements for the drum strength of the cold pellets of calcium carbide raw materials are: abrasion resistance ≦ 10%; crush strength = 17.5 ÷ 20 ≧ 86%.

[0043] The strength requirements of the hot pellet drum of calcium carbide raw material are: abrasion resistance ≦ 15%; crushing strength = 17.5 ÷ 20 ≧ 82%.

[0044] The process flow is attached Figure 4 Shown.

[0045] From the raw material yard, the quicklime is pulverized step by step to a diameter of less than 1mm, dried to a water content of less than 0.1%, and then pulverized step by step to below 200 mesh by an ultrafine grinder.

[0046] From the raw material field, the long fla...

Embodiment 2

[0058] Take the calcium carbide process with an annual output of 200,000 tons as an example. Calcium carbide raw material cold pellet strength requirements: abrasion strength≦10%; crushing strength=17.5÷20≧86%.

[0059] Calcium carbide raw material thermal pellet strength requirements: abrasion resistance≤15%; crushing strength=17.5÷20≧82%.

[0060] See attached for process flow Figure 4 Shown.

[0061] The quicklime is pulverized step by step from the raw material yard to a diameter of less than 1mm, dried to a water content of less than 0.1%, and then pulverized step by step to below 200 mesh by an ultrafine grinder.

[0062] From the raw material field, the long flame coal is pulverized step by step to a diameter of less than 1mm, dried to a water content of less than 0.1%, and then pulverized step by step to below 200 mesh by an ultrafine crusher.

[0063] Quicklime crushed to below 200 mesh and long flame coal crushed to below 200 mesh. Add 5% (percentage of the mass of quicklim...

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Abstract

The invention relates to an on-line pellet strength detection system and method. The on-line pellet strength detection system comprises an automatic cold pellet sampler, an on-line pellet cold strength monitor, an automatic hot pellet sampler, an on-line pellet hot strength monitor and an intelligent production linkage system, wherein the automatic cold pellet sampler is used for sampling pellets before pellet pyrolysis and conveying the sampled cold pellets to the on-line pellet cold strength monitor; the on-line pellet cold strength monitor is used for measuring the strength of the cold pellets and transmitting data to the intelligent production linkage system; the automatic hot pellet sampler is used for sampling the pellets after pellet pyrolysis and conveying the sampled hot pellets to the on-line pellet hot strength monitor; the on-line pellet hot strength monitor is used for measuring the strength of the hot pellets and transmitting data to the intelligent production linkage system. The on-line pellet strength detection system and method can detect the cold strength and hot strength of the pellets in a calcium carbide production process more accurately and form intelligent monitoring for the whole production process.

Description

Technical field [0001] The present invention generally relates to a detection system and method, in particular to an online pellet intensity detection system and method. Background technique [0002] The new production process of regenerative gas-fired high-temperature molten calcium carbide has got rid of the constraints of "high energy consumption, high emissions and high pollution" in the traditional calcium carbide industry, and has realized low energy consumption, low cost and high added value of calcium carbide smelting, which is the sustainability of my country's calcium carbide industry Development provides a solid technical foundation and equipment guarantee. [0003] The core technology of this process is to ensure the cold strength of the pellets after the formation of calcium carbide raw materials and the thermal strength of the pyrolysis of the calcium carbide pellets. If the cold and thermal strength of the pellets decrease, the pulverization rate of the pellets will i...

Claims

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Application Information

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IPC IPC(8): G01N3/00G05B19/418
CPCY02P90/02G01N3/00G05B19/41875
Inventor 杜少春闫琛洋吴道洪
Owner SHENWU TECH GRP CO LTD