Powder moisture detecting machine
A humidity measuring machine and powdery technology, which is applied in the field of microwave humidity measurement, can solve the problems of repeatability of measurement values, damage of the measured object, and long time consumption, etc., and achieve reasonable and easy design, fast change speed, and high frequency Effect
Active Publication Date: 2016-03-23
WUXI AMBITION AUTOMATION TECH CO LTD
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Problems solved by technology
However, it takes a long time and has a narrow application range, which will damage the measured object, and is not suitable for online measurement, and the measurement accuracy is affected by the drying time and the uniformity of material mixing.
[0004] The infrared method can realize online measurement, but its measurement results are greatly affected by the surface color and shape of the measured material
And the influence of factors such as the change of the distance between the measured object and the detector, and the infrared transmittance is poor
In addition, the detector has a certain temperature drift and time drift during the working process, which affects the repeatability of the measured value
Method used
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[0026] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0027] like figure 1 As shown, the present invention includes two major parts: the pipe body part and the conveying transmission part. Wherein, the tube body part is composed of a mainstream tube 1, a shunt tube 2, and a plexiglass detection tube 3.
[0028] The inlets of the main pipe 1 and the shunt pipe 2 are jointly connected with the inlet of the detected object-powder substance. Main flow pipe 1 is the main passage for powdery substances to flow through. The shunt pipe 2 shunts a small portion of powdery substances, which are sent to the plexiglass detection pipe 3 through the transmission transmission part for humidity detection. The main flow pipe 1 and the shunt pipe 2 are communicated through the organic glass detection tube 3, and the powdery substance in the shunt pipe 2 also flows back into the main flow pipe 1 through the or...
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The invention discloses a powder moisture detecting machine including a tube body part and a transportation and transmission part. The tube body part comprises a main flow pipe, a branch flow pipe and an organic glass detection tube. One end of the main flow pipe and one end of the branch flow pipe are both connected to a powdery substance inlet. The other end of the main flow pipe and the other end of the branch flow pipe are communicated with each other through the organic glass detection tube. Two microwave moisture detecting sensors are respectively disposed on both the two sides of the organic glass detection tube. In the transportation and transmission part, a micro motor is installed on a transmission box body through a motor mounting pad plate. The transmission box body is connected to the branch flow pipe through a transmission box end cover. An arch breaking shaft and an auger tube are installed in the transmission box body through a bearing. The arch breaking shaft is connected to a main shaft of the micro motor and is provided with an arch breaking blade. The auger tube is connected to the arch breaking shaft through a transmission gear and is provided with a spiral propeller. The powder moisture detecting machine can quickly detects the moisture of a powdery substance in a real-time, on-line, non-contact and damage-free manner, is high in precision and low in cost, is high in detection speed, is good in stability and can satisfy requirements in practical application.
Description
technical field [0001] The invention relates to the field of microwave humidity measurement, in particular to a device for moisture detection of powdery substances. Background technique [0002] In the food industry, humidity is a key factor determining the quality of powdered products such as wheat flour and flour, and its measurement and control are directly related to product quality and production efficiency. At present, the main methods for measuring the humidity of powdery objects in the industry are drying method, infrared method and microwave method. Real-time, on-line, non-contact, non-destructive measurement is an important requirement and research direction for humidity measurement of powdery substances. [0003] The drying method is the traditional and the most direct method of humidity measurement with high measurement accuracy. However, it takes a long time and has a narrow application range, which will damage the object to be measured, and is not suitable fo...
Claims
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Login to View More IPC IPC(8): G01N22/04
CPCG01N22/04
Inventor 陈建敏陈琪
Owner WUXI AMBITION AUTOMATION TECH CO LTD