Solder the necessity that the workshop removes dust, and remove dust methodological analysis

Since entering 21 centuries, environmental protection becomes one of popular vocabularies on media. Solder the basic method that regards a kind of metal as hot-working, make in metallurgy, petrifaction, machinery, wide application received in a lot of industry departments such as shipbuilding. But in receiving manufacturing process, solder can produce the gas with ill health of a few pairs of human body, material such as dust, apply solder inside narrow and airtight container especially when, solder soot chroma can be as high as 100mg/m3 above, be as high as 800mg/m3 even below a little ventilated and undesirable condition. So abominable work requirement is right solder of personnel healthy constituted serious menace. Adopt necessary technology measure to improve work environment very was necessary, reduce solder to soot is endangered to the worker’s health and be opposite environmental pollution, already made the task that obverse side of a few businesses faces.

　　One, solder soot has what harm

(1) solders the generation of soot

Soldering is to use electric energy to heat, make metal be solderinged local reach liquid state or approach liquid state, and made union is formed firm not dismountable the technique of contact. Welding rod is fused reach boiling point below high temperature, the part produces high temperature steam. Steam of this kind of high temperature breaks away from electric arc high temperature the area oxidizes quickly and condensation becomes tiny solid state dispersive particle, suspension is in air, formed solder soot.

(2) solders the composition of soot

Solder the chemical composition of soot, depend on solder material (welding wire, welding rod, welding flux) what reach its to evaporate with composition of material be solderinged is difficult easy. Of different composition solder material and material be solderinged, solder those who produce different part when applying solder soot.

　 2, solder the measure of health of workshop protection worker

Solder to reduce the soot quantity inside the workshop, protective worker is healthy, what the country stipulates it is certain to have is technical standard and mandatory measure.

　　3, solder the method that the workshop removes dust and application

No matter be,protect worker healthy, removing dust is better idea. Different remove dust methodological effect is distinct, a few kinds introduce to solder commonly usedly below the workshop removes dust technology.

(1) housetop discharges dirt

Advocate if pass workshop top,platoon wind device will solder soot follows air eliminate from workshop bottom together. This method is through be in the positional installation with workshop appropriate housetop sends wind and platoon wind unit, through sending wind and platoon wind, make workshop soot angry the direction that flowing to platoon wind flows, eliminate from workshop coping.

(2) is versed in a concentration remove dust

Average worker worker removing dust is in ventilating duct of workshop interior laid, in welder install intake, in the workshop fan of exterior setting high-power, the attraction that relies on the soot of the generation when soldering fan has intake inspiratory, repass gas is carried use conduit to eliminate a workshop centrally.

Workshop interior and intake pressure photograph are compared, be in small pressing. Because air flow direction is,arrive from high pressure low pressure, solder the soot of generation can enter ventilating duct along with air current. Adopt this kind of measure, intake and soot source are closer, diffusing soot decreases greatly, taller to the inspiratory scale of soot. Because soot diffuses,decrease, workshop air state is improved greatly, the possibility of inspiratory soot reduces the worker greatly. Defect is to need to be in the conduit with workshop interior longer laid, do not transform construction easily, safeguard and life also is a problem. And conduit and solder soot collects a place is fixed, further from dust collection dot, collection result is poorer.

In applying actually, need to distributing according to position of contact of size of workshop structure, workshop, solder wait for fan of computation, design and distribution pipeline, choice, it is a relatively complex project. If the design is unreasonable, although throw,many capital and equipment also cannot obtain favorable result.

New class remove dust used dispersive soot purifier, nearby to soldering soot undertakes filtering handling, the effect is very good, the air after purifying enters a workshop circularly directly.

(3) solders soot is purified machine purify

Solder soot is purified machine purifying is labour a kind when remove dust. Unlike average worker worker remove dust, soot is purified need not laid centers conduit, will inspiratory soot introduces filter system, the clean air after filtering discharges a workshop afresh, soot criterion deposit arrives container. Solder soot is purified machine comprise by purifier, inspiratory arm and inspiratory cover, purifier divides the below 3 casing in going up commonly, top part body has bring Qing Dynasty of bag of a powerful person of fan, pulse, air, pulse grey control appearance, casing has gush blowtorch in, next casing pass filter chamber for solder smoke, interior has filter canister, bottom sets dirt retention to fight, dirt retention is fought use at gathering the dust below filter canister in time.

Solder soot purifies the working principle of machine: When the accident that bring wind turns, the gas that contain dirt enters dust catcher by air inlet, inside dust catcher air current is enforced to change wind direction and velocity of flow is decelerated, when soot crosses filter canister along with air current, be filtered by filter canister and block stays in the wall outside its, the gas after purifying by filter canister Neishangsheng is entered in cylindrical shell, classics fan filters 2 times via active carbon from wind exit eduction, express flour dirt when filter canister relatively a long time, operate pulse pushbutton, pulse gush blows control appearance to begin the work, electromagnetism pulse a powerful person works, make gas wraps the compression inside tall rapid fire of gush of blowtorch of air classics gush arrives inside filter canister, at the same time revulsive and multiple at eject tolerance all round air enters filter canister, cause the instantaneous inside filter canister to be being pressed, make the dust that accumulates the wall outside be being added in filter canister falls in ash bucket, come at stopping the gather up outside machine of the eduction after machine.

Use solder soot is purified machine can filtering to reach point of solder coming back except soot, with processing of collect of nearby of head of high pressure of small wind force.

(4) uses aspiration welding torch

Aspiration welding torch is welding torch and convulsions suction nozzle combination is together one kind solder device. The effect of aspiration welding torch and movable type solder soot is purified opportunity is same, soldering namely before soot did not diffuse its inspiratory conduit, harmful gas can be far from breathing area, can avoid effectively to solder the soot pollution to the workshop and healthy to human body harm. Aspiration welding torch is to absorb merely solder soot, to soldering soot purifies processing to still need configuration to solder soot evolution machine.