CN103212807B

CN103212807B - A kind of Slag recovering method for Medical rack laser processing procedure

Info

Publication number: CN103212807B
Application number: CN201210015846.3A
Authority: CN
Inventors: 魏志凌; 宁军; 夏发平; 马秀云
Original assignee: Kunshan Theta Micro Co Ltd
Current assignee: Kunshan Theta Micro Co Ltd
Priority date: 2012-01-19
Filing date: 2012-01-19
Publication date: 2015-12-02
Anticipated expiration: 2032-01-19
Also published as: CN103212807A

Abstract

The invention discloses a kind of Slag recovering method for Medical rack laser processing procedure, comprising: utilize dust exhaust apparatus to absorb the flue dust, water smoke and the metallic vapour that produce in process, after supercooling, obtain the first solid residue and cooling water flow; Other sewage produced in described cooling water flow and process is transported in settling tank by collector pipe and carries out primary filter, obtain the second solid residue and primary purifying liquid; In vortex separator, secondary filter is carried out to primary purifying liquid, obtain the 3rd solid residue; First, second, and third solid residue is pooled in residue collector, and with pure water, residue is repeatedly rinsed; Make the flushing liquor containing residue by magnetic separator, isolate magnetic retention particle and reclaim; And the flushing liquor input vortex separator after being separated is filtered, obtain non-magnetic solids particle and reclaim.

Description

A kind of Slag recovering method for Medical rack laser processing procedure

Technical field

The present invention relates to laser micro-machining technology field, be specifically related to the separation and recovery method of discarded object in a kind of Medical rack laser processing procedure.

Background technology

Support is a kind of metallic netted structural being implanted to vascular lesion position, in order to blocking or the dredging of narrow position, to improve the blood flow state of diseased region, blood vessel is played to the effect of support.Current Laser Processing is the main machining method of Medical rack, and it is moved along line of cut on tubing by overlapped laser pulse point, inputs the auxiliary fusing cutting of hyperbaric oxygen simultaneously.The material molten gasification of Laser Focusing point place, slag is blown out by gas, and metal pipe-wall forms cutting track.

Current most support tubing relies on external import, and price is extremely expensive.In laser processing procedure, the metallic particles of the melting taken away by high pressure assist gas comprises a large amount of non-ferrous metals and rare precious metals.Because rare precious metals have become the important materials of modern industry and national defense construction, its reserves are limited, produce difficulty, output is not high, price rises steadily, and therefore to cut or the wet slag produced in journey that cuts through filters, is separated, reclaims and just seem and be even more important dry.

Summary of the invention

The present invention solves the technical problem such as sewage and solid residue separation and recovery produced in Laser Processing Medical rack process.

For solving the problems of the technologies described above, the invention discloses a kind of Slag recovering method for Medical rack laser processing procedure.The method comprises the following steps: utilize dust exhaust apparatus to absorb the flue dust, water smoke and the metallic vapour that produce in process, obtain the first solid residue and cooling water flow after supercooling; Other sewage produced in described cooling water flow and process is transported in settling tank by collector pipe and carries out primary filter, obtain the second solid residue and primary purifying liquid; In vortex separator, secondary filter is carried out to primary purifying liquid, obtain the 3rd solid residue; First, second, and third solid residue is pooled in residue collector, and with pure water, residue is repeatedly rinsed; Make the flushing liquor containing residue by magnetic separator, isolate magnetic retention particle and reclaim; And filter in the flushing liquor input vortex separator after separation, obtain non-magnetic solids particle and reclaim.

In the present invention, by carrying out separation and recovery to the sewage produced in Medical rack laser processing procedure and solid residue, the loss of rare precious metals and non-ferrous metal can be reduced, and the sewage of discharge is fully filtered, be beneficial to energy-conserving and environment-protective.

Accompanying drawing explanation

Fig. 1 is the flow chart of residue separation and recovery method according to an embodiment of the invention.

Detailed description of the invention

Each preferred embodiment of the present invention below will be discussed.But it will be appreciated by those skilled in the art that detailed description is not herein as limiting the scope of the invention, the present invention is also achieved by the modification of following embodiment or other equivalent way.

Support processing technology has dry the cutting of laser wetly with laser to cut two kinds of techniques.In one embodiment of the invention, adopt dust exhaust apparatus to absorb the flue dust, water smoke and the metallic vapour that produce in process, be recovered in the dust deposited case of dust exhaust apparatus, after supercooling, the current of gained are pooled in collector pipe.In addition, add man-hour carrying out wet the cutting of laser, by water distributor, pure water is imported to cut point secondary process, the sewage produced in process is also pooled in collector pipe.Exemplarily, separating and reclaiming device of the present invention can comprise filtering module, separation module and oven dry recycling module.

Fig. 1 illustrates residue separation and recovery method flow chart according to an embodiment of the invention.As shown in Figure 1, be recovered to the flue dust in dust deposited case, water smoke and metallic vapour after supercooling, obtain solid residue and cooling water flow, wherein the cooling water flow of gained is pooled in collector pipe.Sewage in collector pipe carries out primary filter in settling tank.Solid residue after filtration is deposited at the bottom of case, and scavenging solution can be transported in vortex separator.In one example, the dividing plate excluding solid residue can be provided with in settling tank, and settling tank becomes settlement of sewage part and primary filter scavenging solution storage compartment by baffle for separating.Dividing plate makes the solid residue in sewage be deposited in the bottom of settlement of sewage part, and the primary filter scavenging solution after precipitation is by flowing to primary filter scavenging solution storage compartment above dividing plate.In addition, in the bottom of the settlement of sewage part of settling tank, scraper plate can be installed, drop in residue collector for the solid residue be deposited at the bottom of case is regularly scraped outside outlet by residue collection mouth.Residue is collected mouth and is only opened when collecting residue, is in closed condition At All Other Times, such as, blocks with plug.

Primary purifying liquid in settling tank, by water pump press-in vortex separator, is transferred the centrifugal force produced, is impelled smalls residue to throw to wall week, then fall along inwall and flowed out by bottom by high-speed rotary.Cone center due to high-speed rotary then formed low-pressure area, impel scavenging solution to rise, by scavenging solution outlet extrusion.More specifically, first primary purifying liquid from settling tank enter the cylindrical section feed liquor district of vortex separator, then conical section Disengagement zone is entered, wherein in conical section Disengagement zone, solid residue in primary purifying liquid falls along inwall and flows out from bottom, and the scavenging solution through secondary filter is then extruded by scavenging solution outlet.

The residue obtain the solid residue in dust deposited case, settling tank primary precipitation and the solid residue of vortex separator bottom are pooled in residue collector.Add the abundant flushing that pure water carries out repeatedly to the residue in residue collector.In order to make the soluble metal loss reduction in sewage, must before purification, these solid residues fully be rinsed, precipitate and be clarified.Because developing result strengthens, soluble metal loss is therefore made to reduce.

Flushing liquor containing residue is separated by magnetic separator, thus the solid particle of magnetic is separated.Isolated solid particle demagnetization post-drying is reclaimed.

Residue flushing liquor press-in vortex separator after being separated is carried out secondary filter.Purify waste water reusable edible or eliminating after filtration, the solid residue obtained then dries rear recovery.

Substantially metal and nonmetally can to separate after above method.

Claims

1., for a Slag recovering method for Medical rack laser processing procedure, comprising:

Utilize dust exhaust apparatus to absorb the flue dust, water smoke and the metallic vapour that produce in process, after supercooling, obtain the first solid residue and cooling water flow;

Other sewage produced in described cooling water flow and process is transported in settling tank by collector pipe and carries out primary filter, obtain the second solid residue and primary purifying liquid;

In vortex separator, secondary filter is carried out to primary purifying liquid, obtain the 3rd solid residue;

First, second, and third solid residue is pooled in residue collector, and with pure water, residue is repeatedly rinsed;

Make the flushing liquor containing residue by magnetic separator, isolate magnetic retention particle and reclaim; And

Filter in the flushing liquor input vortex separator after separation, obtain non-magnetic solids particle and reclaim.

2. Slag recovering method as claimed in claim 1, it is characterized in that, the dividing plate excluding solid residue is provided with in described settling tank, and described settling tank becomes settlement of sewage part and primary filter scavenging solution storage compartment by baffle for separating, dividing plate makes the solid residue in sewage be deposited in the bottom of settlement of sewage part, and the primary filter scavenging solution after precipitation is by flowing to primary filter scavenging solution storage compartment above dividing plate.

3. Slag recovering method as claimed in claim 1 or 2, it is characterized in that, first primary purifying liquid from settling tank enter the cylindrical section feed liquor district of vortex separator, then conical section Disengagement zone is entered, wherein in conical section Disengagement zone, solid residue in primary purifying liquid falls along inwall and flows out from bottom, and the scavenging solution through secondary filter is then extruded by scavenging solution outlet.

4. Slag recovering method as claimed in claim 1, is characterized in that, described magnetic retention particle demagnetization post-drying is reclaimed.

5. Slag recovering method as claimed in claim 1, is characterized in that, reclaims after being dried by described non-magnetic solids particle.