Power cabinet for sample pneumatic conveying system

Abstract

The invention discloses a power cabinet for a sample pneumatic conveying system. The power cabinet comprises a cabinet body. A fan capable of blowing air and sucking air, an outside communicating vent pipe used for communicating with the outside, a pipe communicating vent pipe used for communicating with a pneumatic conveying pipe and a four-way ball valve are arranged in the cabinet body. The four-way ball valve communicates with the outside communicating vent pipe, the pipe communicating vent pipe and an air inlet and an air outlet of the fan at the same time. During air blowing pneumatic conveying, outside air sequentially passes through the outside communicating vent pipe, the four-way ball valve and the air inlet to be sucked into the fan and then sequentially passes through the air outlet, the four-way ball valve and the pipe communicating vent pipe to be blown into the pneumatic conveying pipe. During air sucking pneumatic conveying, the air in the pneumatic conveying pipe sequentially passes through the pipe communicating vent pipe, the four-way ball valve and the air inlet to be sucked into the fan and then sequentially passes through the air outlet, the four-way ball valve and the outside communicating vent pipe to be discharged into the outside. The power cabinet has the beneficial effects of being simple and compact in structure, low in cost, environment-friendly, safe, easy to mount and maintain and good in pneumatic conveying effect.

Description

technical field [0001] The invention mainly relates to the field of material sample collection and processing equipment, and in particular to a power cabinet for a sample pneumatic conveying system. Background technique [0002] For the sampling, sample preparation, and testing of material (such as ore, coal) samples, each country has mandatory standards, and the sampling and processing of samples must be carried out in accordance with the standards. The principle of sample sampling, sample preparation, and testing work process is to gradually reduce the particle size and quality of the collected samples without destroying the representativeness of the sample, until it meets the particle size and quality of the sample in the laboratory test ( Weight) accuracy requirements, and then carry out relevant laboratory analysis on the samples that meet the requirements. [0003] For example, taking coal sampling as an example, it is actually a sampling and analysis process. The pur...

AI Technical Summary

Problems solved by technology

[0005] (1) The existing power cabinet uses two fans for blowing and exhausting operations. The installation of the two fans leads to a larger overall equipment and requires a larger space for placement, resulting in high requirements for the use of the site

[0006] (2) The setting of double fans makes the cost high, the pipeline connection inside the cabinet is complicated, and it is inconvenient to repair and maintain

[0007] (3) The setting of double fans causes large vibration of the fans, which damages the airtightness of the pneumatic transmission pipeline. At the same time, due to the high noise of the double fans, it is not environmentally friendly

This leads to high cost and large equipment

Second, whether it is the design of two cabinets or the design of two fans in one cabinet, in the production operation, the two fans may conflict, that is, the other one is also drawing air at the same time when it is time to blow, which seriously affects the safety of pneumatic transmission. May cause breakage of tubing and vials, seriously affecting sample physical properties and precision

In particular, the status of the two fans cannot be flexibly adjusted according to the real-time pressure conditions in the airway transmission pipeline, which makes the risk greater

Big energy loss

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