Powder electrostatic charge detection and calibration short section

Abstract

A powder electrostatic charge detection and calibration short section is composed of a counter flange, a sampling cup, an electric lead-out wire structure, a sealing box, a supporting frame, an electric lead-out wire, an anti-explosion gland, a connector, a detection cover plate, an operation replacement cover plate, an outer cylinder, a charge-to-mass ratio detector and a calibration frame. Two ends of the outer cylinder are fixedly connected with the butt flanges. The calibration frame is a hollow square tubular component, and one end of the calibration frame is hermetically and fixedly connected with the outer cylinder, and the other end of the calibration frame is provided with a flange mounting hole. The sampling cup is taken out of the outer cylinder through the calibration frame. The sampling cup is arranged in the outer cylinder and is close to the inner wall of one side of the outer cylinder, and a sampling outer cup of the sampling cup is fixedly connected with one end of thesupport frame through welding. The other end of the support frame is welded and fixedly connected with the detection cover plate through the calibration frame. An electric leading-out wire structureis arranged on the sampling inner cup and is connected with an electric leading-out wire. The electric leading-out wire penetrates through the sealing box and is arranged in the support frame. The electric leading-out wire penetrates through the explosion-proof gland and is connected with the charge-to-mass ratio detector through a joint, and the explosion-proof gland is fixedly connected to the detection cover plate.

Description

technical field [0001] The patent of the invention belongs to the field of petrochemical technology, and is used for continuously monitoring the amount of charge carried by materials in the process of pneumatic conveying of powders represented by pellets, and specifically relates to a powder electrostatic charge detection and calibration nipple. Background technique [0002] In the production process of polyolefin powder materials represented by PE and PP, the pneumatic conveying link can make the polyolefin pellets have 0-5uC / kg static electricity, and at the same time, the pellet pneumatic conveying link contains a certain amount of drawing, crushing Polyolefin particles and polyolefin dust, polyolefin can also be accompanied by the escape of monomer combustible gas represented by ethylene and propylene. The above situation leads to a high incidence of explosion accidents caused by electrostatic discharge in polyolefin silos. [0003] Due to the frequent occurrence of petr...

AI Technical Summary

Problems solved by technology

The cylinder-type sampling electrostatic monitor is not suitable for continuous control of electricity consumption because it cannot continuously sample. The structure of the non-cylinder type direct sampling monitor is more advanced and suitable for continuous control of electricity consumption. The charge-to-mass ratio may be biased, and there is currently no calibration equipment specifically for static elimination monitors on the market

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