Method for detecting static electricity in chemical powder packaging process

A packaging process and electrostatic detection technology, applied in the direction of electrostatic field measurement, measuring devices, measuring electrical variables, etc., can solve problems such as explosion and poor safety, and achieve good technical effects

Inactive Publication Date: 2019-04-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is that in the prior art, non-static elimination can easily lead to explosi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An electrostatic detection method for chemical powder packaging process, including the following steps: (1) In the process of packaging and unloading chemical powder, the electrostatic voltage on the surface of the packaging bag is monitored in real time, and the distance between the electrostatic voltmeter and the surface of the packaging bag is kept constant (2) Real-time monitoring of the electrostatic potential of the human body from the process of blanking and packaging to the end of the packaging; (3) When the static voltage on the surface of the blanking packaging bag exceeds 30KV or the electrostatic voltage of the human body exceeds 3KV, the alarm system will give an alarm. The alarm mode is sound and light alarm. During the real-time monitoring, the distance between the electrostatic voltage probe and the packaging bag is constant, and the distance between the electrostatic voltage probe and the packaging bag is 18 cm. A human body static electricity monitor is...

Embodiment 2

[0024] An electrostatic detection method for chemical powder packaging process, including the following steps: (1) In the process of packaging and unloading chemical powder, the electrostatic voltage on the surface of the packaging bag is monitored in real time, and the distance between the electrostatic voltmeter and the surface of the packaging bag is kept constant (2) Real-time monitoring of the electrostatic potential of the human body from the process of blanking and packaging to the end of the packaging; (3) When the static voltage on the surface of the blanking packaging bag exceeds 30KV or the electrostatic voltage of the human body exceeds 3KV, the alarm system will give an alarm. The alarm mode is sound and light alarm. During real-time monitoring, the distance between the electrostatic voltage probe and the packaging bag is constant, and the distance between the electrostatic voltage probe and the packaging bag is 20 cm. A human body static electricity monitor is ins...

Embodiment 3

[0026] An electrostatic detection method for chemical powder packaging process, including the following steps: (1) In the process of packaging and unloading chemical powder, the electrostatic voltage on the surface of the packaging bag is monitored in real time, and the distance between the electrostatic voltmeter and the surface of the packaging bag is kept constant (2) Real-time monitoring of the electrostatic potential of the human body from the process of blanking and packaging to the end of the packaging; (3) When the static voltage on the surface of the blanking packaging bag exceeds 30KV or the electrostatic voltage of the human body exceeds 3KV, the alarm system will give an alarm. The alarm mode is sound and light alarm. During real-time monitoring, the distance between the electrostatic voltage probe and the packaging bag is constant, and the distance between the electrostatic voltage probe and the packaging bag is 22 cm. A human body static electricity monitor is ins...

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Abstract

The invention relates to a method for detecting static electricity in the chemical powder packaging process. The problems that in the prior art, explosion and poor safety are prone to being caused dueto non static electricity elimination are mainly solved. The method for detecting the static electricity in the chemical powder packaging process comprises the following steps that (1) in the packing, discharging and packaging processes of chemical powder, the electrostatic voltage on the surface of a packaging bag is monitored in real time, and the distance from an electrostatic voltmeter to thesurface of the packaging bag is kept constant; (2) in the process from discharging packaging to package finishing, the electrostatic potential of a human body is monitored in real time; (3) when theelectrostatic voltage on the surface of the discharging packaging bag exceeds 30 KV or the electrostatic voltage of the human body exceeds 3 KV, an alarm system issues an alarm. The problems are wellsolved by adopting the technical scheme, and the method can be used for static electricity detecting in the chemical powder packaging process.

Description

Technical field [0001] The invention relates to an electrostatic detection method in a chemical powder packaging process. Background technique [0002] None of the existing chemical powder packaging systems are equipped with static elimination facilities, and most of the chemical powder packaging operations use manual bagging operations. The friction between the slice and the conveying pipe, the direct friction and collision process between the slice and the packaging bag will generate a lot of static electricity. Generally speaking, chemical powder has high insulation and large static dissipation time constant, so its own charge is not easy to eliminate. When the powder is discharged from the high-level silo, it still carries a lot of static electricity. In addition, in the process of blanking and packaging, the direct friction and collision between the slices and the packaging bag will also generate static electricity. At the same time, the poor conductivity of the packaging b...

Claims

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Application Information

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IPC IPC(8): G01R29/12G01R19/165
Inventor 孟鹤宫宏刘娟
Owner CHINA PETROLEUM & CHEM CORP
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