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Drum-type automatic measuring and testing device for fineness of pulverized coal

A coal fineness, automatic measurement technology, applied to the measurement device, by removing certain components, weighing, particle size analysis, etc., can solve the problem of low measurement accuracy, improve measurement accuracy, improve measurement accuracy and work efficiency Effect

Inactive Publication Date: 2020-06-12
STATE GRID HEBEI ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the general procedure of the power plant for measuring the fineness of coal powder is: manually weigh the coal powder sample→manually put the weighed coal powder into the coal powder sieve→manually install the sieve containing the coal powder on the vibrating screen On the extension machine→manually start the pulverized coal vibrating sieving machine to run for 15 minutes and stop automatically→remove the pulverized coal sieve installed on the vibrating sieving machine manually→weigh the remaining pulverized coal on the pulverized coal sieve manually→calculate manually→calculate the data manually Input computer to store, the coal fineness measurement test of a coal powder sample needs time 20~25min, and its measurement precision is low

Method used

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  • Drum-type automatic measuring and testing device for fineness of pulverized coal
  • Drum-type automatic measuring and testing device for fineness of pulverized coal
  • Drum-type automatic measuring and testing device for fineness of pulverized coal

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Embodiment 1

[0050] as attached Figure 1-7 As shown, the present invention includes a housing 17, a pulverized coal storage and powder lowering device arranged on the upper part of the housing 17, an electric drum screen device arranged in the middle part of the housing 17, a powder feeding and a powder feeding device arranged on the electric drum screen device The powder discharge device, the pulverized coal recovery device arranged in the lower part of the casing 17, the load cell 13 arranged on both sides of the bottom of the casing 17, the position controller 7 arranged at one end of the electric drum screen device, and the position controller 7 arranged in the casing 17 External computer and power supply 12; load cell 13, position controller 7, pulverized coal storage and powder lowering device, electric drum sieve device and powder feeding and powder discharging device are electrically connected with computer and power supply 12 respectively.

[0051] The pulverized coal storage and...

Embodiment 2

[0058] as attached Figure 1-7As shown, the present invention includes a housing 17, a pulverized coal storage and powder lowering device arranged on the upper part of the housing 17, an electric drum screen device arranged in the middle part of the housing 17, a powder feeding and a powder feeding device arranged on the electric drum screen device The powder discharge device, the pulverized coal recovery device arranged in the lower part of the casing 17, the load cell 13 arranged on both sides of the bottom of the casing 17, the position controller 7 arranged at one end of the electric drum screen device, and the position controller 7 arranged in the casing 17 External computer and power supply 12; load cell 13, position controller 7, pulverized coal storage and powder lowering device, electric drum sieve device and powder feeding and powder discharging device are electrically connected with computer and power supply 12 respectively.

[0059] The pulverized coal storage and ...

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Abstract

The invention relates to a drum-type automatic measuring and testing device for fineness of pulverized coal. The device comprises a shell, a pulverized coal storing and discharging device arranged atthe upper part in the shell, an electric rotary screen device arranged in the middle in the shell, a powder feeding and discharging device arranged on the electric rotary screen device, a pulverized coal recovery device arranged on the lower portion in the shell, weighing sensors arranged on the two sides of the bottom in the shell, a position controller arranged at one end of the electric rotaryscreen device, and a computer and a power source which are arranged outside the shell. According to the pulverized coal fineness measurement test, only different pulverized coal samples need to be manually put into the 4-6 pulverized coal storage tanks, then the device is manually started at a time, pulverized coal fineness measurement of the 4-6 pulverized coal samples can be completed, data display and storage are completed, and the measurement precision and the working efficiency are improved.

Description

technical field [0001] The invention relates to a drum-type automatic measurement test device for pulverized coal fineness, which belongs to the technical field of pulverized coal fineness measurement test for power station pulverized coal boilers. Background technique [0002] Most of the power plant boilers use pulverized coal boilers. The size of the pulverized coal fineness of the power plant pulverized coal boilers directly affects the combustion stability and economy of the boilers. The pulverized coal fineness is an important parameter index of the power plant pulverized coal boilers. The pulverized coal fineness parameter is obtained through the collection and measurement test of pulverized coal. The collection and measurement test of pulverized coal generally requires that each pulverized coal boiler be collected and measured once every 8 hours. The pulverized coal fineness measurement test is to collect the pulverized coal Samples are weighed and sieved in the labo...

Claims

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Application Information

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IPC IPC(8): G01N5/04G01N15/02
CPCG01N5/04G01N15/0272
Inventor 张万德张勇胜闫慧博刘文献马登卿贾永会
Owner STATE GRID HEBEI ELECTRIC POWER RES INST