CN106270524B - Catalysis degreasing system and catalysis degreasing method - Google Patents
Catalysis degreasing system and catalysis degreasing method Download PDFInfo
- Publication number
- CN106270524B CN106270524B CN201610918300.7A CN201610918300A CN106270524B CN 106270524 B CN106270524 B CN 106270524B CN 201610918300 A CN201610918300 A CN 201610918300A CN 106270524 B CN106270524 B CN 106270524B
- Authority
- CN
- China
- Prior art keywords
- catalyst
- oxalic acid
- catalysis degreasing
- aqueous solution
- acid aqueous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
- B22F3/1025—Removal of binder or filler not by heating only
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of catalysis degreasing system and catalysis degreasing methods, are related to Metal Injection Molding field.The present invention provides a kind of catalysis degreasing system, which includes：Oxalic acid and water are made into oxalic acid aqueous solution catalyst by catalyst attemperation apparatus, the catalyst attemperation apparatus in proportion；Catalysis degreasing reaction unit, the entrance of the catalysis degreasing device are connected to the catalyst attemperation apparatus, for the oxalic acid aqueous solution catalyst to be carried out catalysis degreasing reaction；Transfer pipeline, the transfer pipeline is arranged between the catalyst attemperation apparatus and the catalysis degreasing reaction unit, for the oxalic acid aqueous solution catalyst to be delivered to the catalysis degreasing reaction unit from the catalyst attemperation apparatus.A kind of catalysis degreasing system and catalysis degreasing method provided by the invention, avoid environmental pollution and security risk, expand the application range of catalysis degreasing stove.
Description
Technical field
The present invention relates to Metal Injection Molding fields, de- more particularly, to a kind of catalysis degreasing system and catalysis
Fat method.
Background technology
Metal Injection Molding (MIM technologies) is that traditional powder metallurgical technique is injected with thermoplastic engineering plastic
The new process that moulding process is combined, it in the superior set of this two techniques.The basic operation flow of the technique is
Metal powder and binder mixing are prepared into feeding together, then feeding is put into injection molding machine, injection mold obtains a setting
Then most of binder in green compact is removed to degreasing, then carries out the process of high temperature sintering by the green compact of shape.In this process
In, catalysis degreasing is carried out to green compact and generally can all be carried out in catalysis degreasing stove, and is being catalyzed as catalyst frequently with concentrated nitric acid
Catalysis degreasing reaction is carried out to green compact in debinding furnace.
When carrying out catalysis degreasing to product in catalysis degreasing stove, the dense nitre of the catalyst that uses for concentration 87% or more
Acid solution, however, concentrated nitric acid solution be there are problems that as catalyst, the concentrated nitric acid solution after catalysis degreasing reaction carries out
Oxynitrides is will produce, environment is polluted；In catalysis degreasing reaction carries out, a large amount of formaldehyde is will produce in catalysis degreasing stove
Gas, concentrated nitric acid solution can react with formaldehyde, so that catalysis degreasing stove is there is the danger of explosion, there are security risks；Dense nitre
Catalysis degreasing stove of the acid as catalyst only can carry out catalysis degreasing to conventional stainless steel product and iron product, copper is produced
The concentrated nitric acids such as product, cobalt product, titanium products cannot carry out catalysis degreasing reaction, reduce the application range of catalysis degreasing stove.
Invention content
The purpose of the present invention is to provide a kind of catalysis degreasing system and catalysis degreasing methods, avoid environmental pollution and peace
Full hidden danger expands the application range of catalysis degreasing stove.
To achieve the above object, the present invention provides following technical scheme：
According to an aspect of the present invention, a kind of catalysis degreasing system is provided, which includes
Oxalic acid and water are made into oxalic acid aqueous solution and are catalyzed by catalyst attemperation apparatus, the catalyst attemperation apparatus in proportion
Agent；
Catalysis degreasing reaction unit, the entrance of the catalysis degreasing reaction unit are connected to the catalyst attemperation apparatus,
The oxalic acid aqueous solution catalyst for reconciling the catalyst attemperation apparatus carries out catalysis degreasing reaction；
Transfer pipeline, transfer pipeline setting the catalyst attemperation apparatus and the catalysis degreasing reaction unit it
Between, for the oxalic acid aqueous solution catalyst to be delivered to the catalysis degreasing reaction unit from the catalyst attemperation apparatus.
Further, the ratio of the oxalic acid and the water is：0.5-1:1.5-2.
Further, the catalyst attemperation apparatus includes：
Catalyst reconciles device, the catalyst reconcile device be used to hold the oxalic acid and the water mixed liquor, will described in
Oxalic acid is made into the oxalic acid aqueous solution catalyst and holds the oxalic acid aqueous solution catalyst in proportion with the water；
Heating stirrer, the heating stirrer are used for the mixing of the oxalic acid and water in catalyst reconciliation device
Liquid carries out heating stirring, reconciles the oxalic acid aqueous solution catalyst.
Further, when the catalyst reconciles device as recorder jar, the heating stirrer is magnetic agitation heater, institute
Stating catalyst attemperation apparatus includes：
Recorder jar, the recorder jar are used to hold the mixed liquor of the oxalic acid and the water, by the oxalic acid and the water
It is made into the oxalic acid aqueous solution catalyst in proportion and holds the aqueous formic acid catalyst；
Magnetic agitation heater, the magnetic agitation heater are placed in the recorder jar bottom, for by the oxalic acid with
The mixed liquor of water is stirred heating；
The magnetic stir bar is placed in the recorder jar by magnetic stir bar, in the work of the magnetic agitation heater
Under, the mixed solution of the oxalic acid and the water is stirred, to reconcile the oxalic acid aqueous solution catalyst；
The thermocouple is placed in the recorder jar by thermocouple, to control the temperature of the oxalic acid aqueous solution catalyst.
Further, the catalysis degreasing reaction unit includes：
The entrance of catalysis degreasing stove, the catalysis degreasing stove is connected to the transfer pipeline, for the oxalic acid is water-soluble
Liquid catalyst carries out catalysis degreasing reaction；
Connect sour box, it is described to connect sour box and be placed in the catalysis degreasing stove, for receiving the transfer pipeline from the catalysis
Agent attemperation apparatus is delivered to the catalyst of the catalysis degreasing reaction unit.
Further, the transfer pipeline includes the first sub- transfer pipeline, the second sub- transfer pipeline, connector and metering pump；
One end of the first sub- transfer pipeline is connected to the catalyst attemperation apparatus, the other end and the metering pump
Entrance is connected to；
The outlet of one end and the metering pump of the second sub- transfer pipeline, the other end and the catalysis degreasing stove
Entrance connection；
The connector is arranged on the described second sub- transfer pipeline, for the described second sub- transfer pipeline to be dismantled,
To clean the transfer pipeline.
According to another aspect of the present invention, a kind of catalysis degreasing method is provided, uses and is provided in above-mentioned technical proposal
Any one of them catalysis degreasing system, this method include：
Oxalic acid and water are made into oxalic acid aqueous solution catalysis by catalyst reconciliation step in catalyst attemperation apparatus in proportion
Agent；
Catalysis degreasing reaction step, the oxalic acid aqueous solution catalyst that catalyst reconciliation step is reconciled is in catalysis degreasing
Reaction unit carries out catalysis degreasing reaction.
Further, the catalyst reconciliation step includes：
The oxalic acid, the water are placed in catalyst reconciliation device；
The catalyst that the oxalic acid and the mixed liquor of the water will be filled reconciles device and is placed on heating stirrer and carries out
Heating stirring, to reconcile the oxalic acid aqueous solution catalyst.
Further, the catalysis degreasing reaction step includes：
Transfer pipeline is delivered to the oxalic acid water of the catalysis degreasing reaction step from catalyst reconciliation step
Solution catalyst is received to connecing in sour box；
It connects the oxalic acid aqueous solution catalyst that sour box receives by described to carry out catalysis degreasing in catalysis degreasing stove anti-
It answers.
Further, after the catalysis degreasing reaction step terminates, this method further includes：
Back suction cleaning step：Back suction action is carried out to the oxalic acid aqueous solution catalyst in metering pump and transfer pipeline,
The oxalic acid aqueous solution catalyst is drawn back the catalyst reconciliation device, connector is unscrewed, will be led in metering pump and transfer pipeline
Enter water, then back suction is carried out to the oxalic acid aqueous solution catalyst in metering pump and transfer pipeline and is acted to clean the metering pump
With the transfer pipeline.
Compared with prior art, beneficial effects of the present invention are：
According to the catalysis degreasing system of the present invention, which includes：Catalyst attemperation apparatus, the catalyst attemperation apparatus will
Oxalic acid is made into oxalic acid aqueous solution catalyst in proportion with water；Catalysis degreasing reaction unit, the catalysis degreasing reaction unit enter
Mouth is connected to the catalyst attemperation apparatus, the oxalic acid aqueous solution catalyst for reconciling the catalyst attemperation apparatus
Carry out catalysis degreasing reaction；Transfer pipeline, the transfer pipeline are arranged in the catalyst attemperation apparatus and the catalysis degreasing
Between reaction unit, for the oxalic acid aqueous solution catalyst to be delivered to the catalysis degreasing from the catalyst attemperation apparatus
Reaction unit passes through transfer pipeline by oxalic acid and water proportionally in catalyst attemperation apparatus reconciliation oxalic acid aqueous solution catalyst
By the oxalic acid aqueous solution catalyst transport reconciled in catalyst attemperation apparatus to catalysis degreasing reaction unit, reacted in catalysis degreasing
Device medium-height grass aqueous acid catalyst carries out catalysis degreasing reaction, due to using oxalic acid and water to press in above-mentioned catalysis degreasing system
The catalyst that the oxalic acid aqueous solution that ratio reconciles is reacted as catalysis degreasing so that residue is only two after catalysis degreasing reacts
Carbonoxide and water, do not pollute the environment；It is not easy the formaldehyde gas generated in being reacted with catalysis degreasing reaction, avoids the danger of explosion
Security risk is not present in danger；And can not only catalysis degreasing be carried out to stainless steel product and iron product, it can also be to copper products, cobalt
Product, titanium products carry out catalysis degreasing, expand the application range of catalysis degreasing stove.
Catalysis degreasing method according to the present invention, this method include：Catalyst reconciliation step, oxalic acid and water are existed in proportion
Oxalic acid aqueous solution catalyst is made into catalyst attemperation apparatus；Catalysis degreasing reaction step, by catalyst reconciliation step tune
The oxalic acid aqueous solution catalyst of sum carries out catalysis degreasing reaction in catalysis degreasing reaction unit, and oxalic acid and water are proportionally being urged
Agent reconciliation step reconciliation oxalic acid aqueous solution catalyst, the oxalic acid aqueous solution for being reconciled catalyst reconciliation step by transfer pipeline
Catalyst transport carries out catalysis degreasing to catalysis degreasing reaction step, in catalysis degreasing reaction step medium-height grass aqueous acid catalyst
Reaction, due to using the oxalic acid aqueous solution that oxalic acid and water reconcile in proportion anti-as catalysis degreasing in above-mentioned catalysis degreasing system
The catalyst answered so that residue is only carbon dioxide and water after catalysis degreasing reacts, and is not polluted the environment；It is not easy and is catalyzed
The formaldehyde gas reaction generated in degreasing reaction, avoids the danger of explosion, security risk is not present；And it not only can be to stainless
Steel product and iron product carry out catalysis degreasing, can also carry out catalysis degreasing to copper products, cobalt product, titanium products, expand catalysis
The application range of debinding furnace.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structure flow chart of catalysis degreasing system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of catalysis degreasing system provided in an embodiment of the present invention；
Fig. 3 is the flow chart of catalysis degreasing method provided in an embodiment of the present invention；
Fig. 4 is the flow chart for the catalysis degreasing method that another embodiment of the present invention provides.
In figure：100- catalyst attemperation apparatus；101- recorder jars；102- magnetic agitation heaters；103- magnetic stir bars；
104- thermocouples；200- catalysis degreasing reaction units；201- catalysis degreasing stoves；202- connects sour box；300- transfer pipelines；301-
One sub- transfer pipeline；The second sub- transfer pipelines of 302-；303- connectors；304- metering pumps；305- insulating layers；S1- catalyst reconciles
Step；S2- catalysis degreasing reaction steps；S3- back suction cleaning steps.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
According to an aspect of the present invention, as depicted in figs. 1 and 2, a kind of catalysis degreasing system is provided, which includes：
Oxalic acid and water are made into oxalic acid aqueous solution and are catalyzed by catalyst attemperation apparatus 100, catalyst attemperation apparatus 100 in proportion
Agent；
The entrance of catalysis degreasing reaction unit 200, catalysis degreasing reaction unit 200 is connected to catalyst attemperation apparatus 100,
Oxalic acid aqueous solution catalyst for reconciling catalyst attemperation apparatus 100 carries out catalysis degreasing reaction；
Transfer pipeline 300, the setting of transfer pipeline 300 catalyst attemperation apparatus 100 and catalysis degreasing reaction unit 200 it
Between, for oxalic acid aqueous solution catalyst to be delivered to catalysis degreasing reaction unit 200 from catalyst attemperation apparatus 100.
Oxalic acid and water are proportionally reconciled grass by catalysis degreasing system according to the present invention in catalyst attemperation apparatus 100
Aqueous acid catalyst, the oxalic acid aqueous solution catalyst transport that will be reconciled in catalyst attemperation apparatus 100 by transfer pipeline 300
To catalysis degreasing reaction unit 200, it is anti-to carry out catalysis degreasing in 200 medium-height grass aqueous acid catalyst of catalysis degreasing reaction unit
It answers, due to using the oxalic acid aqueous solution that oxalic acid and water reconcile in proportion to be reacted as catalysis degreasing in above-mentioned catalysis degreasing system
Catalyst so that after catalysis degreasing reacts residue only be carbon dioxide and water, do not pollute the environment；It is not easy de- with catalysis
The formaldehyde gas reaction generated in fat reaction, avoids the danger of explosion, security risk is not present；And it not only can be to stainless steel
Product and iron product carry out catalysis degreasing, can also carry out catalysis degreasing to copper products, cobalt product, titanium products, it is de- to expand catalysis
The application range of fat stove 201.
According to a kind of embodiment of catalysis degreasing system of the present invention, the ratio of oxalic acid and water is：0.5-1:1.5-2.
Catalysis degreasing system according to the present invention exists the control of the ratio of oxalic acid and water：0.5-1:1.5-2 range obtain
Oxalic acid aqueous solution catalyst, the oxalic acid aqueous solution catalyst that above range obtains can be in catalysis degreasing reaction unit 200
The catalysis degreasing reaction of progress provides suitable acid condition so that catalysis degreasing reaction is preferable to be carried out, and catalysis degreasing is improved
The efficiency of stove 201.
According to a kind of embodiment of catalysis degreasing system of the present invention, catalysis attemperation apparatus includes：
Catalyst reconciliation device, catalyst reconcile device for holding the mixed liquor of oxalic acid and water, matching oxalic acid and water in proportion
At oxalic acid aqueous solution catalyst and hold oxalic acid aqueous solution catalyst；
Heating stirrer, heating stirrer are used to the mixed liquor of oxalic acid and water in catalysis reconciliation device carrying out heating to stir
It mixes, reconciliation oxalic acid aqueous solution catalyst.
Oxalic acid and water are added in reconciling device to catalyst, are heated by catalysis degreasing system according to the present invention
Stirring enables oxalic acid to be adequately dissolved in water to reconcile oxalic acid aqueous solution catalyst, prevents oxalic acid in the mixed of oxalic acid and water
It closes and is crystallized in liquid, catalysis degreasing reaction cannot be normally carried out.
According to a kind of embodiment of catalysis degreasing system of the present invention, when catalyst reconciles device as recorder jar 101, heating is stirred
It is magnetic agitation heater 102 to mix device, and catalyst attemperation apparatus 100 includes：
Recorder jar 101, recorder jar 101 are used to hold the mixed liquor of oxalic acid and water, oxalic acid and water are made into oxalic acid in proportion
Water-soluble liquid catalyst and first is held by aqueous acid catalyst；
Magnetic agitation heater 102, magnetic agitation heater 102 are placed in 101 bottom of recorder jar, for by oxalic acid and water
Mixed liquor is stirred heating；
Magnetic agitation heater 102 is placed in recorder jar 101 by magnetic stir bar 103, in magnetic agitation heater 102
Under the action of, the mixed solution of oxalic acid and water is stirred, to reconcile oxalic acid aqueous solution catalyst；
Thermocouple 104 is placed in recorder jar 101 by thermocouple 104, to control the temperature of oxalic acid aqueous solution catalyst.
Catalysis degreasing system according to the present invention, realize the mode of heating stirring also there are many, for example, realizing the side of stirring
Formula can be mechanical agitator, realize that the mode of heating can be oil bath heating etc.；
The temperature that the solution in recorder jar 101 is controlled using thermocouple 104 prevents solution too low or excessively high, generally
By temperature control between 80-90 degrees Celsius so that it is de- that oxalic acid aqueous solution can carry out catalysis in catalysis degreasing reaction unit 200
Fat reacts.
According to a kind of embodiment of catalysis degreasing system of the present invention, catalysis degreasing reaction unit 200 includes：
The entrance of catalysis degreasing stove 201, catalysis degreasing stove 201 is connected to transfer pipeline 300, for urging oxalic acid aqueous solution
Agent carries out catalysis degreasing reaction；
Sour box 202 is connect, sour box 202 is connect and is placed in catalysis degreasing stove 201, for receiving transfer pipeline 300 from catalyst tune
The catalyst of catalysis degreasing reaction unit 200 is delivered to device 100.
Catalysis degreasing system according to the present invention urges oxalic acid aqueous solution in catalysis degreasing stove 201 using connecing sour box 202
Agent is received, and since the temperature in catalysis degreasing stove 201 reaches 120 degrees Celsius, oxalic acid aqueous solution catalyst is Celsius 120
The lower gasification of degree, blows through circulating fan and carries out catalysis degreasing reaction, if without using sour box 202 is connect, oxalic acid aqueous solution catalyst with
Place's drop is put, and oxalic acid aqueous solution catalyst cannot be effectively utilized.
According to a kind of embodiment of catalysis degreasing system of the present invention, transfer pipeline 300 includes the first sub- transfer pipeline
301, the second sub- transfer pipeline 302, connector 303 and metering pump 304；
One end of first sub- transfer pipeline 301 is connected to catalyst attemperation apparatus 100, and the other end enters with metering pump 304
Mouth connection；
The outlet of one end and metering pump 304 of the second sub- transfer pipeline 302, the other end and catalysis degreasing stove 201
Entrance is connected to；
Connector 303 is arranged on the second sub- transfer pipeline 302, for dismantling the second sub- transfer pipeline 302, with clear
Wash transfer pipeline 300.
Catalysis degreasing system according to the present invention, the first sub- transfer pipeline 301 and the second sub- transfer pipeline 302 are transparent four
Fluorine pipe, due to transparent four fluorine tube have corrosion resistance, since conveying have corrosive oxalic acid aqueous solution；Simultaneously because conveying
It can be influenced in the process by extraneous low temperature, the phenomenon that oxalic acid aqueous solution catalyst may crystallize, block pipeline, cause to be catalyzed
Degreasing reaction cannot carry out well, so needing in the first sub- transfer pipeline 301, the second sub- transfer pipeline 302 and metering pump
Outlet connection and inlet union on be enclosed with wrapping layer 305, wrapping layer is to be made of thermal insulation material, and be provided on wrapping layer
Heater strip so that wrapping layer has the function of heating and keep the temperature, certainly, as long as the wrapping layer of heating and insulation effect can be realized
It can apply in the present embodiment, wherein the temperature of the wrapping layer controls in 70-100 DEG C of section, ensures that oxalic acid is water-soluble with this
The phenomenon that liquid catalyst will not crystallize in pipeline.
On the one hand the effect of metering pump 304 conveys oxalic acid aqueous solution catalyst for transfer pipeline 300 and provides power, another party
Face metering is transported to the amount of the oxalic acid aqueous solution catalyst for connecing sour box 202 in catalysis degreasing stove 201, it is ensured that oxalic acid aqueous solution is urged
Agent carries out the dosage of catalysis degreasing reaction, to realize the controllability of catalysis degreasing technique.
After catalysis degreasing system operation, metering pump 304 carries out back suction action, and the back suction time continues 60 seconds, can be with
Metering pump 304 and the first sub- transfer pipeline 301 are drawn back with the residual oxalic acid aqueous solution catalyst in the second sub- transfer pipeline 302
In recorder jar 101, it is therefore an objective to prevent oxalic acid aqueous solution from generating crystallization and block pipeline；
Wherein, connector 303 is that tetrafluoro banjo fixing butt jointing twists tetrafluoro banjo fixing butt jointing after catalysis degreasing system operation
It opens, the first sub- transfer pipeline 301 is passed into 70-100 DEG C of water, make back suction 60 seconds again of metering pump 304, it is therefore an objective to clear with hot water
It washes in metering pump 304 and remains in the oxalic acid aqueous solution in the first sub- transfer pipeline 301, prevent careless in the state that equipment stops
Acid crystal blocks pipeline.
According to another aspect of the present invention, as shown in figure 3, a kind of catalysis degreasing method is provided, using above-mentioned technical proposal
The catalysis degreasing method of offer, this method include：
Catalyst reconciliation step S1, oxalic acid aqueous solution is made by oxalic acid and water in catalyst attemperation apparatus 100 in proportion
Catalyst；
Catalysis degreasing reaction step S2, the oxalic acid aqueous solution catalyst that catalyst reconciliation step S1 is reconciled is in catalysis degreasing
Reaction unit 200 carries out catalysis degreasing reaction.
Catalysis degreasing method according to the present invention, by oxalic acid and water proportionally in catalyst reconciliation step S1 reconciliation oxalic acid
Catalyst is reconciled oxalic acid aqueous solution catalyst transport that step S1 reconciles to urging by water-soluble liquid catalyst by transfer pipeline 300
Change degreasing reaction step S2, catalysis degreasing reaction is carried out in catalysis degreasing reaction step S2 medium-height grass aqueous acid catalyst, due to
The catalysis for using the oxalic acid aqueous solution that oxalic acid and water reconcile in proportion to be reacted as catalysis degreasing in above-mentioned catalysis degreasing system
Agent so that residue is only carbon dioxide and water after catalysis degreasing reacts, and is not polluted the environment；It is not easy to react with catalysis degreasing
The formaldehyde gas of middle generation reacts, and avoids the danger of explosion, and security risk is not present；And not only can to stainless steel product and
Iron product carries out catalysis degreasing, can also carry out catalysis degreasing to copper products, cobalt product, titanium products, expand catalysis degreasing stove 201
Application range.
According to a kind of embodiment of catalysis degreasing method of the present invention, catalyst reconciliation step S1 includes：
Oxalic acid, water are placed in catalyst reconciliation device；
The catalyst reconciliation device for the mixed liquor for filling oxalic acid and water is placed on heating stirrer and carries out heating stirring, to adjust
With oxalic acid aqueous solution catalyst.
According to a kind of embodiment of catalysis degreasing method of the present invention, catalysis degreasing reaction step S2 includes：
The oxalic acid aqueous solution that transfer pipeline 300 is delivered to catalysis degreasing reaction step S2 from catalyst reconciliation step S1 is urged
Agent is received to connecing in sour box 202；
The oxalic acid aqueous solution catalyst that sour box 202 receives will be connect and carry out catalysis degreasing reaction in catalysis degreasing stove 201.
According to a kind of embodiment of catalysis degreasing method of the present invention, as shown in figure 4, when catalysis degreasing reaction step S2 knots
After beam, this method further includes：
Back suction cleaning step S3：It is dynamic that back suction is carried out to the oxalic acid aqueous solution catalyst in metering pump 304 and transfer pipeline 300
Make, oxalic acid aqueous solution catalyst is drawn back into catalyst reconciliation device, connector 303 is unscrewed, by metering pump 304 and transfer pipeline 301
It is inside passed through water, then back suction action is carried out to clean metering to the oxalic acid aqueous solution catalyst in metering pump 304 and transfer pipeline 301
Pump 304 and transfer pipeline 301.
In conclusion more according to the optional factor of catalysis degreasing system of the present invention and catalysis degreasing method.According to this hair
Bright claim can be combined into multiple embodiments, therefore the technical solution that claim combinations according to the present invention go out is equal
Within protection scope of the present invention.Below in conjunction with specific embodiments to catalysis degreasing system of the present invention and catalysis degreasing side
Method is further described through.
Embodiment 1 is the embodiment of catalysis degreasing system of the present invention；
Embodiment 1
Catalysis degreasing system according to the present invention, the system include：It catalyst attemperation apparatus 100, transfer pipeline 300 and urges
Change degreasing reaction unit 200；
It is 1 by ratio:2 oxalic acid and water is added according to quantity to recorder jar 101, while magnetic stir bar 103 being added to meter
Above-mentioned recorder jar 101 is positioned on magnetic agitation heater 102 by measuring bottle 101, is stirred and is added to the mixed liquor of oxalic acid and water
Heat, the oxalic acid aqueous solution catalyst that reconciles open metering pump 304, oxalic acid water when thermocouple 104 detects temperature at 80 degrees Celsius
Solution catalyst enters to metering pump 304 through the first sub- transfer pipeline 301, and metering pump 304 is defeated through the second son by oxalic acid aqueous solution
Send pipeline 302 to enter catalysis degreasing stove 201 and carry out catalysis degreasing, when catalysis degreasing after reaction, carried out using metering pump 304
Back suction acts, and the back suction time continues 60 seconds, can be by metering pump 304 and the first sub- transfer pipeline 301 and the second sub- transfer pipeline
Residual oxalic acid aqueous solution catalyst in 302 is drawn back in recorder jar 101, and after above-mentioned back suction, tetrafluoro banjo fixing butt jointing is unscrewed,
Metering pump 304, the first sub- transfer pipeline 301 are passed into 70-100 DEG C of water, making metering pump 304, back suction is counted for 60 seconds to clean again
Amount the 304, first sub- transfer pipeline 301 of pump.
Embodiment 2 is the embodiment of catalysis degreasing method of the present invention；
Embodiment 2
Catalysis degreasing method according to the present invention, this method include：Catalyst reconciliation step S1 and catalysis degreasing reaction step
Rapid S2；
It is 1 by ratio:2 oxalic acid and water is added according to quantity in the recorder jar 101 for reconciling step S1 to catalyst, while by magnetic
Power stirrer 103 be added to recorder jar 101, above-mentioned recorder jar 101 is positioned on magnetic agitation heater 102, to oxalic acid with
The mixed liquor of water is stirred heating, reconciles oxalic acid aqueous solution catalyst, when thermocouple 104 detects temperature at 80 degrees Celsius,
Metering pump 304 is opened, oxalic acid aqueous solution catalyst enters to metering pump 304 through the first sub- transfer pipeline 301, and metering pump 304 will
It is de- that catalysis degreasing stove 201 of the oxalic acid aqueous solution through the second sub- transfer pipeline 302 into catalysis degreasing reaction step S2 carries out catalysis
Fat, when catalysis degreasing after reaction, carry out back suction action using metering pump 304, the back suction time continues 60 seconds, can will measure
Residual oxalic acid aqueous solution catalyst in pump 304 and the first sub- transfer pipeline 301 and the second sub- transfer pipeline 302 draws back recorder jar
In 101, after above-mentioned back suction, tetrafluoro banjo fixing butt jointing is unscrewed, metering pump 304, the first sub- transfer pipeline 301 are passed into
In 70-100 DEG C waters, making metering pump 304, back suction 60 seconds cleans metering pump 304, the first sub- transfer pipeline 301 again.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：It is still
Either which part or all technical features can be carried out so that technical scheme described in the above embodiments is modified
Equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (9)
1. a kind of catalysis degreasing system, which is characterized in that the system includes：
Oxalic acid and water are made into oxalic acid aqueous solution catalyst by catalyst attemperation apparatus, the catalyst attemperation apparatus in proportion；
Catalysis degreasing reaction unit, the entrance of the catalysis degreasing reaction unit are connected to the catalyst attemperation apparatus, are used for
The oxalic acid aqueous solution catalyst that the catalyst attemperation apparatus is reconciled carries out catalysis degreasing reaction；
Transfer pipeline, the transfer pipeline are arranged between the catalyst attemperation apparatus and the catalysis degreasing reaction unit,
For the oxalic acid aqueous solution catalyst to be delivered to the catalysis degreasing reaction unit from the catalyst attemperation apparatus；
The transfer pipeline includes the first sub- transfer pipeline, the second sub- transfer pipeline, connector and metering pump；
One end of the first sub- transfer pipeline is connected to the catalyst attemperation apparatus, the entrance of the other end and the metering pump
Connection；
The outlet of one end and the metering pump of the second sub- transfer pipeline, the other end enter with the catalysis degreasing stove
Mouth connection；
The connector is arranged on the described second sub- transfer pipeline, for dismantling the described second sub- transfer pipeline, with clear
Wash the transfer pipeline；
On the outlet connection and inlet union of the first sub- transfer pipeline, the second sub- transfer pipeline and the metering pump
It is enclosed with wrapping layer, heater strip is provided on the wrapping layer.
2. catalysis degreasing system according to claim 1, which is characterized in that the ratio of the oxalic acid and the water is：
0.5-1:1.5-2。
3. catalysis degreasing system according to claim 1, which is characterized in that the catalyst attemperation apparatus includes：
Catalyst reconciles device, and the catalyst reconciles device and is used to hold the mixed liquor of the oxalic acid and the water, by the oxalic acid
It is made into the oxalic acid aqueous solution catalyst in proportion with the water and holds the oxalic acid aqueous solution catalyst；
Heating stirrer, the heating stirrer be used for by the catalyst reconcile device in the oxalic acid and water mixed liquor into
Row heating stirring, reconciles the oxalic acid aqueous solution catalyst.
4. catalysis degreasing system according to claim 3, which is characterized in that when the catalyst reconcile device be recorder jar,
The heating stirrer is magnetic agitation heater, and the catalyst attemperation apparatus includes：
Recorder jar, the recorder jar be used to hold the oxalic acid and the water mixed liquor, by the oxalic acid and the water by than
Example is made into the oxalic acid aqueous solution catalyst and holds the oxalic acid aqueous solution catalyst；
Magnetic agitation heater, the magnetic agitation heater are placed in the recorder jar bottom, for by the oxalic acid and water
Mixed liquor is stirred heating；
The magnetic stir bar is placed in the recorder jar by magnetic stir bar, under the action of the magnetic agitation heater,
The mixed solution of the oxalic acid and the water is stirred, to reconcile the oxalic acid aqueous solution catalyst；
The thermocouple is placed in the recorder jar by thermocouple, to control the temperature of the oxalic acid aqueous solution catalyst.
5. catalysis degreasing system according to claim 1, which is characterized in that the catalysis degreasing reaction unit includes：
The entrance of catalysis degreasing stove, the catalysis degreasing stove is connected to the transfer pipeline, for urging the oxalic acid aqueous solution
Agent carries out catalysis degreasing reaction；
Connect sour box, it is described to connect sour box and be placed in the catalysis degreasing stove, for receiving the transfer pipeline from the catalyst tune
The catalyst of the catalysis degreasing reaction unit is delivered to device.
6. a kind of catalysis degreasing method, using catalysis degreasing system as described in any one in claim 1-5, which is characterized in that
This method includes：
Catalyst reconciliation step, oxalic acid aqueous solution catalyst is made by oxalic acid and water in catalyst attemperation apparatus in proportion；
Catalysis degreasing reaction step, the oxalic acid aqueous solution catalyst that catalyst reconciliation step is reconciled is in catalysis degreasing
Reaction unit carries out catalysis degreasing reaction.
7. catalysis degreasing method according to claim 6, which is characterized in that the catalyst reconciles step and includes：
The oxalic acid, the water are placed in catalyst reconciliation device；
The catalyst that the oxalic acid and the mixed liquor of the water will be filled reconciles device and is placed on heating stirrer and heats
Stirring, to reconcile the oxalic acid aqueous solution catalyst.
8. catalysis degreasing method according to claim 6, which is characterized in that the catalysis degreasing reaction step includes：
Transfer pipeline is delivered to the oxalic acid aqueous solution of the catalysis degreasing reaction step from catalyst reconciliation step
Catalyst is received to connecing in sour box；
It connects the oxalic acid aqueous solution catalyst that sour box receives by described and carries out catalysis degreasing reaction in catalysis degreasing stove.
9. catalysis degreasing method according to claim 6, which is characterized in that when the catalysis degreasing reaction step terminates it
Afterwards, this method further includes：
Back suction cleaning step：Back suction action is carried out to the oxalic acid aqueous solution catalyst in metering pump and the transfer pipeline,
The oxalic acid aqueous solution catalyst is drawn back the catalyst reconciliation device, connector is unscrewed, by the metering pump and the conveying
It is passed through water in pipeline, then back suction action is carried out to the oxalic acid aqueous solution catalyst in the metering pump and the transfer pipeline
To clean the metering pump and the transfer pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918300.7A CN106270524B (en) | 2016-10-21 | 2016-10-21 | Catalysis degreasing system and catalysis degreasing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918300.7A CN106270524B (en) | 2016-10-21 | 2016-10-21 | Catalysis degreasing system and catalysis degreasing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106270524A CN106270524A (en) | 2017-01-04 |
| CN106270524B true CN106270524B (en) | 2018-10-23 |
Family
ID=57719228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610918300.7A Active CN106270524B (en) | 2016-10-21 | 2016-10-21 | Catalysis degreasing system and catalysis degreasing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106270524B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735242A (en) * | 2017-01-20 | 2017-05-31 | 杭州铭赫科技有限公司 | It is a kind of by oxalic acid apply to it is metal injection molded during method |
| CN106825560A (en) * | 2017-02-23 | 2017-06-13 | 深圳市星特烁科技有限公司 | A kind of oxalic acid powder feed machine for powder metallurgy mesoxalic acid catalysis degreasing stove |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2504345B2 (en) * | 1991-06-04 | 1996-06-05 | 株式会社島津製作所 | Vacuum sintering furnace |
| CN105562695B (en) * | 2014-10-17 | 2018-12-21 | 深圳市湛鑫炉业有限公司 | A kind of debinding furnace |
| CN104325144B (en) * | 2014-10-27 | 2017-01-25 | 福立旺精密机电（中国）股份有限公司 | Metal injecting molding catalytic debinding method and catalytic debinding furnace |
| CN104788091A (en) * | 2015-03-17 | 2015-07-22 | 深圳顺络电子股份有限公司 | Ferrite magnetic core blank body and preparation method thereof, and ferrite magnetic core and preparation method of ferrite magnetic core |
| CN105382262A (en) * | 2015-11-04 | 2016-03-09 | 深圳艾利门特科技有限公司 | Manufacturing method of heat conduction copper pipe with inner groove |
| CN105665714A (en) * | 2016-02-01 | 2016-06-15 | 罗松文 | Safe, environment-friendly and efficient catalytic degreasing furnace and process thereof |
| CN205505730U (en) * | 2016-02-01 | 2016-08-24 | 罗松文 | Two air inlet loop structure catalytic debinding stoves |
| CN206139840U (en) * | 2016-10-21 | 2017-05-03 | 宁波斯百睿自控设备有限公司 | Preparation system of catalytic debinding system and metal powder injection moulding goods |
-
2016
- 2016-10-21 CN CN201610918300.7A patent/CN106270524B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106270524A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106270524B (en) | Catalysis degreasing system and catalysis degreasing method | |
| CN106008383B (en) | The system and method for cyanuric acid crude product is continuously prepared using urea | |
| CN108404843A (en) | A kind of chemical industry reaction kettle with temp regulating function | |
| CN108330497A (en) | A kind of chemically-cleaning device and cleaning method of low-temperature multi-effect seawater desalination device | |
| CN206139840U (en) | Preparation system of catalytic debinding system and metal powder injection moulding goods | |
| CN104492355A (en) | Exothermic reaction device and method for accurately determining temperature in reaction process | |
| CN209715107U (en) | A kind of 5- nitro -1,3- phthalic acid continuous production and isolated device | |
| CN110283086A (en) | A kind of method and device of continuous production m-aminophenol | |
| CN208495171U (en) | A kind of cleaning system for dairy products process units | |
| CN208377536U (en) | A kind of steady warm oil supply system of non-woven fabrics hot roll | |
| CN204395958U (en) | A kind of production system of cleanup additive | |
| CN209702737U (en) | Quantitative heating stirs bottle placer | |
| CN208365801U (en) | A kind of circulating heater | |
| CN209362504U (en) | The synthesis reactor of one kind 4,6- dichloro pyrimidine | |
| CN209519755U (en) | A kind of reaction kettle of achievable rapid temperature rise and drop | |
| CN106984208A (en) | A kind of agitating device with recyclegas heating function | |
| CN202343153U (en) | Heating agitating barrel | |
| CN208244561U (en) | Beer bottle sticker glue anti-solidifying device | |
| CN207153707U (en) | A kind of production of resins reactor of stabilization | |
| CN205821217U (en) | Carbamide is used to prepare the system of cyanuric acid crude product continuously | |
| CN206285887U (en) | A kind of liquid agitation mediation use can heat the reactor of observation | |
| CN211384937U (en) | Calcium stearate melting tank | |
| CN219338124U (en) | System for mixing plant controllable cold and hot water feeding | |
| CN215440769U (en) | Cast aluminum water insulation sleeve of metering pump of lyocell fiber spinning machine | |
| CN203816577U (en) | Automaticbatching device for sour soup beverages |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |