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Coal mine draught fan frequency conversion system

A frequency conversion system and fan technology, applied in mine/tunnel ventilation, mining equipment, mining equipment, etc., can solve the problems of unreasonable control of gas discharge, unsafe factors, gas overrun, etc., to reduce system costs, guarantee Safety, Number Reduction Effect

Inactive Publication Date: 2017-04-26
无锡国煤重工机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of ventilation system often cannot reasonably control the amount of gas discharged, which may lead to excessive gas in some areas, bringing unsafe factors, and the fans are always rated to operate, which consumes a lot of energy

Method used

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  • Coal mine draught fan frequency conversion system
  • Coal mine draught fan frequency conversion system
  • Coal mine draught fan frequency conversion system

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Embodiment Construction

[0011] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the above-mentioned and other purposes, features and advantages of the present invention will be clearer. Like reference numerals designate like parts throughout the drawings. The drawings have not been drawn to scale, emphasis instead being placed upon illustrating the gist of the invention.

[0012] Such as figure 1 As shown, the ventilation system of the present invention includes a controller arranged on the well, and the controller is respectively connected with the network server, the monitoring screen, the database and the RS232 interface, and the controller communicates with the substations arranged in several areas underground through the RS232 interface Each regional sub-station monitors...

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Abstract

The invention discloses a coal mine draught fan frequency conversion system which comprises a controller arranged on a mine. The controller is connected with a network server, a monitor screen, a database and an RS232 interface. Each substation is internally provided with a plurality of draught fans, a touch screen and a plurality of detection units. Each draught fan is connected with a rectifier through a frequency converter connected with a PLC. Each detection unit comprises a surveillance camera used for acquiring image signals in the area where the surveillance camera is located. Images are coded through an encoder and then sent to a DSP control module connected with the PLC through a first communication module. An outage detection module is used for detecting whether outage occurs. By adoption of the coal mine draught fan frequency conversion system, underground ventilation can be effectively conducted.

Description

technical field [0001] The invention belongs to the field of coal mines, in particular to a frequency conversion system for a coal mine fan. Background technique [0002] The mine ventilation system is an important part of mine safety production. Whether the mine ventilation system can work normally is closely related to the working environment conditions, production efficiency and safety production in the mine. During the tunneling operation, the gas concentration and dust in the tunnel The concentration may exceed the standard; at the same time, as the fully mechanized roadway advances, the ratio of the extraction and pressure air volume of the ventilation system, the load status of the dust collector and other parameters will change. These hidden dangers may lead to safety accidents at any time. At present, the underground ventilation system generally uses an ordinary motor. Once it is put into operation, the fan will run at the rated air volume and air pressure. This k...

Claims

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Application Information

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IPC IPC(8): F04D27/00E21F1/00E21F17/18
Inventor 沈鉴伟
Owner 无锡国煤重工机械有限公司