Rotary arm type ash sample transfer mechanism for on-line detection of fly ash carbon content by weight loss method

A technology of fly ash carbon content and transfer mechanism, which is applied in the direction of removing certain components and weighing, etc., can solve the problems of detection interruption, increase the number of detections, manual replenishment, etc., so as to avoid detection interruption, improve accuracy, and improve Detecting the effect of frequency

Inactive Publication Date: 2015-12-23
解海龙
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Problems solved by technology

[0004] In order to increase the detection frequency, it is necessary to increase the number of detections per unit time. However, the existing detection mechanism can not increase the number of detections in the shortest detection period because of its various detection processes in series.
[0005] In addition, since the crucible is a consumable, once it is damaged, it needs to be replenished manually, which will have to interrupt the detection

Method used

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  • Rotary arm type ash sample transfer mechanism for on-line detection of fly ash carbon content by weight loss method

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] 1. The gray sample conveying process is as follows (refer to the attached picture):

[0017] a. The initial state before operation is: three crucibles are placed on the sampling station 2, the temporary bracket 3 and the spare bracket 6 respectively;

[0018] b. The first operation: the swivel arm 5 transports the crucible with the ash sample obtained at the sampling station 2 to the weighing station 4 for weighing, and then sends the weighed ash sample to the burning station 1 for burning; the swivel arm 5 Then, the crucible on the temporary bracket 3 is sent to the sampling station 2 and the weighing station 4 in turn to complete the sampling and weighing process, and then sent to the sampling station 2 for temporary storage, in a preparation state before burning;

[0019] c. Continuous operation stage: the rotating arm 5 takes out the ash sam...

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Abstract

The invention relates to a rotary arm type ash sample transfer mechanism for on-line detection of fly ash carbon content by weight loss method. The mechanism is characterized in that it has a cantilever with front end able to lift and hold a crucible, under the control of a computer, the cantilever can perform lifting and rotation action driven by electricity and (or) air to transfer the crucible to each station, so that all fly ash carbon content detection steps can completed parallelly. The mechanism provided by the invention is also provided with a standby bracket, and when the crucible is damaged or lost, the standby crucible on the bracket can be taken for use by the cantilever automatically. By applying the transfer mechanism provided by the invention, the detection frequency can be doubled, and at the same time the detection interruption caused by crucible damage is avoided. The invention provides more reliable basis and timely regulation effect feedback for optimization of combustion control, effectively improves the regulation accuracy, and ensures that the boiler unit can always operate under a most economical and low nitrogen oxide emission state.

Description

technical field [0001] The invention relates to a rotating arm type ash sample transfer mechanism in a device for on-line detection of carbon content in fly ash by weightlessness method. The application of the mechanism can increase the frequency of sample detection and avoid the interruption of the detection process due to crucible damage. Background technique [0002] The carbon content of fly ash is an important indicator reflecting the economical operation of large coal-fired boilers, and it is also an indispensable basis for optimizing combustion and controlling low NOx emissions. Therefore, it is particularly important to detect this indicator online. According to statistical principles, the higher the sampling and testing frequency of the sample, the higher the accuracy and reliability of the testing results. However, the detection frequency is not only limited by the steps that must be performed in the detection process, but also by the ash sample transfer mechanism...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 王金铭解海龙
Owner 解海龙
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