Dust removing and explosion preventing apparatus for wood dust explosion

A technology of dust explosion and explosion-proof device, applied in the field of wood processing, can solve the problems of large manpower and material resources, poor explosion-proof effect, short service life, etc., to achieve the effect of small footprint, avoid noise pollution, and simple equipment

Inactive Publication Date: 2017-07-11
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Technical problem to be solved: This application provides a dust removal and explosion-proof device for wood dust explosion, which solves the problems of easy secondary explosion, poor explosion-proof effect, short service life, incomplete dust removal and large investment in manpower and material resources in the existing wood dust du

Method used

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  • Dust removing and explosion preventing apparatus for wood dust explosion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the dust removal and explosion-proof device for wood dust explosion includes a wood dust conveyor, a bag filter and an exhaust chimney, and is characterized in that: the wood dust conveyor is a closed belt conveyor 1, and the closed belt conveyor 1 and bag The dust collectors are connected through the explosion-proof valve 2, and the explosion-proof valve 2 controls the feeding of the bag filter inlet. The ash is clean and thorough, and the control is simple and accurate, especially with a long service life. It can be used in the environment of high temperature, high pressure and dusty media, eliminating the phenomenon of "blocking" and "tower arch" of the ash hopper. The top of the ash hopper unloader is set There is a sprinkler 4, which can spray bio-nanofilm agents or water to better prevent the discharge from detonating in the air. The filter bags of the bag filter contain metal wires 5, which are connected to the bag filter. The metal sh...

Embodiment 2

[0026] Such as figure 1 As shown, the dust removal and explosion-proof device for wood dust explosion includes a wood dust conveyor, a bag filter and an exhaust chimney, and is characterized in that: the wood dust conveyor is a closed belt conveyor 1, and the closed belt conveyor 1 There is an electromagnetic separator above the material flow to remove static electricity from the material and avoid explosion during transmission. A temperature measuring device is installed on the shaft of the belt conveyor to monitor the temperature in real time to avoid explosion accidents caused by excessive temperature. The closed belt type The conveyor 1 is connected to the bag filter through an explosion-proof valve 2, which controls the feeding of the bag filter inlet. A vibrator 3 is installed on the ash bucket wall of the bag filter to Strong force, clean and thorough dust removal, simple and accurate control, especially long service life, can be used in high temperature, high pressure,...

Embodiment 3

[0028] Such as figure 1 As shown, the dust removal and explosion-proof device for wood dust explosion includes a wood dust conveyor, a bag filter and an exhaust chimney, and is characterized in that: the wood dust conveyor is a closed belt conveyor 1, and the closed belt conveyor 1 There is an electromagnetic roller above the material flow to remove static electricity from the material and avoid explosions during transmission. A temperature measuring device is installed on the shaft of the belt conveyor to monitor the temperature in real time to avoid explosion accidents caused by excessive temperature. The closed belt type The conveyor 1 is connected to the bag filter through an explosion-proof valve 2, which controls the feeding of the bag filter inlet. A vibrator 3 is installed on the ash bucket wall of the bag filter to Strong force, clean and thorough dust removal, simple and accurate control, especially long service life, can be used in high temperature, high pressure, d...

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PUM

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Abstract

The present invention discloses a dust removing and explosion preventing apparatus for wood dust explosion. According to the present invention, during the process from wood dust transportation to dust removing, an electromagnetic iron removing device, a metal wire, an electric conduction coating material and a metal shell are synergistically used, such that the generation of static electricity is avoided, and the wood dust burning explosion caused by static spark is inhibited; through the synergetic effect of a temperature measurement device and a monitor, the temperature and the pressure during the dust removing process are real-timely monitored; by matching a water sprinkling head and a rapping device, the burning explosion caused by the clogging during the material discharging after the dust removing or the contact of the discharged material and air at the high temperature is avoided; through the synergetic effect of a polytetrafluoroethylene film, an electromagnetic pulse blowing device and a vibration rod, clogging and hardening cannot be caused during the dust removing process, the long-term operation can be achieved, the apparatus has advantages of high-temperature resistance and corrosion resistance, and it can be ensured that the dust collector does not produce the burning explosion after the long-term work at the high temperature; and by matching a fireproof ring and a spraying nozzle, the secondary burning explosion can be prevented, and the burning explosion of the discharged waste gas can be avoided.

Description

technical field [0001] The invention belongs to environmental protection dust removal and explosion-proof equipment in the technical field of wood processing, in particular to a dust removal and explosion-proof device for wood dust explosion. Background technique [0002] With the development of social urbanization, technology, and humanization, the wood processing industry has developed vigorously, and more and more wood is processed and used, followed by the increase of wood dust and the emergence of wood dust explosion problems. . Dust explosion, dust refers to dispersed solid matter. Dust explosion refers to the explosion phenomenon that occurs when combustible dust suspended in the air touches an ignition source such as an open flame or an electric spark. Dust explosion refers to combustible dust within the explosion limit range, when encountering a heat source, the flame spreads instantly throughout the entire mixed dust space, the chemical reaction speed is extrem...

Claims

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Application Information

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IPC IPC(8): B01D46/02B01D46/04B01D50/00B65G45/10
CPCB01D46/023B01D46/04B65G45/10B01D50/60
Inventor 那斌徐兆军谢思熠朱南峰
Owner NANJING FORESTRY UNIV
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