CN106225485B - Oxalic acid feeder - Google Patents
Oxalic acid feeder Download PDFInfo
- Publication number
- CN106225485B CN106225485B CN201610839201.XA CN201610839201A CN106225485B CN 106225485 B CN106225485 B CN 106225485B CN 201610839201 A CN201610839201 A CN 201610839201A CN 106225485 B CN106225485 B CN 106225485B
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- China
- Prior art keywords
- oxalic acid
- case
- feeding
- movable block
- storage bin
- Prior art date
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- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 title claims abstract description 163
- 235000006408 oxalic acid Nutrition 0.000 title claims abstract description 47
- 238000004821 distillation Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 17
- 230000009467 reduction Effects 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 5
- 229920006324 polyoxymethylene Polymers 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000005238 degreasing Methods 0.000 description 13
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical group O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 10
- 229910017604 nitric acid Inorganic materials 0.000 description 10
- 238000006555 catalytic reaction Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0084—Charging; Manipulation of SC or SC wafers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0075—Regulation of the charge quantity
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
A kind of oxalic acid feeder, including：Feeding mechanism, feed mechanism and gas transmission mechanism, feeding mechanism include infundibulate storage bin, sealing be placed on storage bin upper port case lid, be communicated in the vertical barrel connector of storage bin lower port and the horizontal bush set on connector bottom end, case lid is equipped with filler interface, and the upper surface of horizontal bush is equipped with the feed opening for being communicated in connector；Gas transmission mechanism includes distil case, the heater strip of bottom and the partition board being covered on heater strip in distillation case, the intake interface that access nitrogen is respectively provided on distillation case connects outlet interface inside debinding furnace with by gas passage, the side of distillation case offers feeding port, and the connection of sleeve one end is mounted on feeding port；Feed mechanism includes the movable block that activity is plugged in sleeve, and one end of movable block towards feeding port offers receiving hole up and down.The present invention realizes the supply of gaseous state Catalyzed by Oxalic Acid agent, makes debinding furnace using gaseous state oxalic acid as the catalyst to decomposing polyformaldehyde.
Description
Technical field
The present invention relates to a kind of ancillary equipments of debinding furnace, are more particularly to a kind of apply metal injection molded and ceramic
The oxalic acid feeder of catalysis degreasing stove in injection moulding.
Background technology
The technological principle of catalysis degreasing is the sour gas in certain temperature (about 100 DEG C) using solid polyformaldehyde (POM)
Under atmosphere rapid cleavage at gaseous formaldehyde molecule characteristic, wherein acid exist as a kind of catalyst.Its cracking type is as follows：
(CH2O)n(acid solution)-→ nCH2O
Currently, common catalyst is nitric acid (HNO during catalysis degreasing3), generally use diaphragm pump or plunger pump
To complete conveying of the nitric acid to debinding furnace.The structural principle of plunger pump as shown in Figure 1, transport to the left when eccentric wheel 71 controls piston 72
When dynamic, pressure reduces in pipeline 73, and under atmospheric pressure, down tube ball 74 is opened, and solution 76 enters pipeline 73；When piston 72 to the right
When movement, pressure increases in pipeline 73, and down tube ball 74 is closed at this time, and upper tube ball 75 is open-top, and solution 76 is flowed into above
Container in, complete the conveying of solution.But nitric acid has the following defects in catalytic reaction process：
1, it is be easy to cause workpiece surface oxidation, to the workpiece green compact metal powder in debinding furnace oxidation reaction occurs for nitric acid：
3Fe+8HNO3=Fe3O4+6NO2↑+4H2O
2Al+6HNO3=Al2O3+6NO2↑+3H2O
It is applied in the metal powder that these are easy to be oxidized by nitric acid so being unfavorable for catalysis degreasing technology.
2, nitric acid generates a large amount of nitrogen oxides, can not effectively decompose and pollute air, have HNO in the discharge of tail gas3With
NOx, it is one of Cause of Acid Rain, it is harmful to environment, water body, soil and air can be polluted.
3, the limitation of this acid pump, plunger pump are only limited to conveying liquid, can not convey gas or solid.
Therefore, the present inventor creates out to overcome the defect of nitric acid using oxalic acid (HOOCCOOH) gas instead nitric acid
The catalyst that solution is reacted as above-mentioned degreasing.But it in oxalic acid powder filler and oxalic acid gas transmission process, is asked there are following
Topic：
1, existing solid-state feeder occupies sufficiently bulky, and often structure and precision are not ideal enough, especially lateral and diameter
It is larger to gap, it usually will produce material leakage, run the problems such as material, cannot steadily control instantaneous feeding coal；And feeding coal is adjusted
Range is narrow, can only realize the conveying of a large amount of powder, cannot achieve quantitative micro conveying.
2, the crystallization because oxalic acid easily absorbs water, is easy to form block, is easy to be detained in the channel in conveying, may block logical
Road influences to produce, and is not suitable for conveying using existing feeder.
3, existing gaseous state conveying device is unable to maintain that high-temperature operation, because oxalic acid starts to distil at 100 DEG C, is not suitable for adopting
With traditional gaseous state conveying device, and traditional gaseous state conveying device only realizes a large amount of conveying, cannot achieve quantitative
Conveying.
4, existing gaseous state conveying device is all to complete to convey using air compressor, has a large amount of air stream immediately
Enter, because metal injection molded and ceramic injection forming catalysis degreasing process there cannot be air stream to enter, not so will produce serious
Safety accident, so cannot use air compression method carry out gaseous state conveying；And will be fully sealed, air tight, this is all
What existing conveying device can not accomplish.
Invention content
The technical problem to be solved by the present invention is to overcome above-mentioned the deficiencies in the prior art, a kind of oxalic acid feeder is provided.
The present invention solve above-mentioned technical problem the technical solution adopted is that：A kind of oxalic acid feeder, including：Feeding mechanism,
Feed mechanism and gas transmission mechanism,
The feeding mechanism include infundibulate storage bin, sealing be placed on storage bin upper port case lid, be communicated in storage bin
The vertical barrel connector of lower port and the horizontal bush set on connector bottom end, the case lid are equipped with filler interface, institute
The upper surface for stating horizontal bush is equipped with the feed opening for being communicated in connector；
The gas transmission mechanism include distil case, set on distillation case in bottom heater strip and be covered on heater strip every
Plate, it is described distillation case on be respectively provided with access nitrogen intake interface connect going out inside debinding furnace with by gas passage
The side of gas interface, the distillation case offers feeding port, and horizontal bush one end connection is mounted on feeding port；
The feed mechanism includes the movable block that activity is plugged in sleeve, and one end of the movable block towards feeding port is opened
Equipped with receiving hole up and down, when movable block exits feeding port, receiving hole can receive storage by connector and feed opening
It deposits case and conveys the oxalic acid powder fallen, when movable block penetrates feeding port, receiving hole blanking is fallen into distillation case.
Preferably, the one end of the movable block far from receiving hole is connected with a lead screw, and screw gear is connected to
The input terminal of turbine reduction box, turbine reduction box connects feeding motor by shaft coupling, passes through turbine reduction box by feeding motor
Drive lead screw linear motion so that lead screw drives movable block to move reciprocatingly in sleeve.
Preferably, the oxalic acid feeder further includes frame assembly, the frame assembly include rectangular box with
And the supporting rack mounted on rectangular box side, the same side of the rectangular box towards supporting rack offer port, the water
On the port of rectangular box, the feeding motor and turbine reduction box are mounted on rectangular box for flat sleeve other end connection
Interior, the distillation case is fixed on supporting rack.
Preferably, the one end of the movable block far from receiving hole is connected with a lead screw, and screw gear is connected to
The input terminal of turbine reduction box, turbine reduction box connects motor by shaft coupling, and lead screw is driven by turbine reduction box by motor
Linear motion so that lead screw drives movable block to move reciprocatingly in sleeve.
Preferably, the connector includes the feed pipe being arranged inside and outside and outer a set of cups, outer a set of cups lower end sealing
It is fixedly connected on the outside of feed opening, feed pipe lower end closed butt joint feed opening.
Preferably, there are certain intervals between the feed pipe and outer a set of cups, are symmetrically set in the side of outer a set of cups
There are inlet opening and apopore, cooling water that can be flowed into from inlet opening, after the outside tube wall of feed pipe, then from apopore stream
Go out.
Preferably, the feeding mechanism is additionally provided with blender, and the blender includes：On case lid
Stirring motor and the stirring blade in storage bin, by stirring motor driving stirring blade rotation.
Preferably, a dnockout stick is installed, the top of dnockout stick stretches out in distillation case simultaneously in the distillation case
It is moved up and down by pneumatic actuation.
Preferably, the intake interface and outlet interface are separately positioned on the opposite flank of distillation case.
Preferably, the distillation case is tightly connected by rectangular box and case lid, babinet by it is left and right, preceding,
Afterwards and five blocks of bottom side plank is surrounded, and the top of babinet offers case mouth, and case lid is covered on case mouth.
Compared with prior art, beneficial effects of the present invention：
1, traditional debinding furnace can only realize that the supply of liquid nitric acid catalyst, the present invention devise a kind of oxalic acid feeder,
The supply for realizing gaseous state Catalyzed by Oxalic Acid agent makes debinding furnace, as the catalyst to decomposing polyformaldehyde, solve and urge using gaseous state oxalic acid
The problem of how entering debinding furnace after skimming processes oxalic acid distils changed, can also complete to convey from the mode without the use of compressed air
Supply.
2, the present invention can store oxalic acid powder, and filler is convenient and simple, and no danger is conveniently operated personnel's filler；And energy
Enough realize that the quantitative feeding of oxalic acid gas, pushing precision are high；Meanwhile the present invention is also equipped with blender, and stirring may be implemented and smash
The oxalic acid powder of caking makes it smoothly feed.
3, the present invention may be implemented that operation is fully sealed, and accomplish that oxalic acid is fully sealed in feeding, air tight, it is ensured that degreasing
The smooth catalysis degreasing of polyformaldehyde energy in stove, solves the problems, such as oxalic acid sealing conveying, avoids the danger of gas leakage；And mechanism adds
Work precision is high, it is ensured that minimum gap.
4, the present invention can by control distil case in heater strip heating temperature height and receiving hole feeding amount come
The influx of oxalic acid gas is controlled, the quantitative feeding of oxalic acid gas is realized, can especially reach micro (5-500 Grams Per Hours)
The purpose of feeding.
5, present invention design is simple, easy for installation, light-weight, small, can be with the assembly of debinding furnace all-in-one machine.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, wherein：
Fig. 1 is the principle schematic diagram of plunger pump in the prior art；
Fig. 2 is the fractionation structural representation of present pre-ferred embodiments；
Fig. 3 is the internal structure schematic diagram of present pre-ferred embodiments；
Fig. 4 is the operation principles schematic diagram of present pre-ferred embodiments.
Specific implementation mode
Below in conjunction with attached drawing and specific implementation mode, the present invention is described further.Drawn in preferred embodiment
Such as "upper", "lower", "left", "right", " centre " and " one " term, only being illustrated for ease of narration, rather than to limit
The enforceable range of the present invention, relativeness are altered or modified, in the case where changing technology contents without essence, when being also considered as this hair
Bright enforceable scope.
Fig. 2 and Fig. 3 are referred to, a kind of oxalic acid feeder designed in present pre-ferred embodiments includes mainly：Frame
Component, feeding mechanism, feed mechanism and gas transmission mechanism, oxalic acid powder are first transported in feeding mechanism, then pass through feeding
Mechanism is quantitatively conveyed to gas transmission mechanism and distils, and is passed into debinding furnace after obtaining gaseous state oxalic acid, carries out degreasing catalysis reaction.
Frame assembly includes mainly：Rectangular box 101 and the supporting rack 102 for being fixedly mounted on 101 side of rectangular box,
Port is offered in the same side of rectangular box 101 towards supporting rack 102.
Feeding mechanism is arranged on frame assembly, and feeding mechanism includes mainly：Storage bin 210, case lid 220, connector 230
And sleeve 240.Storage bin 210 is in funnel-shaped structure, and cross section is rectangular or round, and 220 sealing cover of case lid is in storage bin
210 upper port offers filler interface 221 using screw-driving on case lid 220, and oxalic acid is added by filler interface 221
Powder.Connector 230 is in vertical tubular structure, includes mainly that the feed pipe being arranged inside and outside and outer a set of cups, connector 230 pass through
Flange seal is connected to the lower port of storage bin 210, and sleeve 240 is in horizontal tubular structure, cross section rectangular shaped, sleeve
240 one end connection offers feed opening 241 on a side port of rectangular box 101 in the upper surface of sleeve 240,
The outer a set of cups lower end of connector 230 is sealedly and fixedly connected in 241 outside of feed opening, and the feed pipe lower end of connector 230 is close
Dock feed opening 241 so that storage bin 210 and connector 230, feed opening 241 are interconnected.
Gas transmission mechanism is arranged on supporting rack 102, and gas transmission mechanism includes mainly：Distil case 410, partition board 420 and heating
Silk 430, distillation case 410 are rectangular box structure, and heater strip 430 is arranged in the interior bottom of distillation case 410, and partition board 420 is covered in
On heater strip 430, oxalic acid powder is directly placed on partition board 420, is heated by heater strip 430, and it is gas to make oxalic acid distillation
State, in order to enable gaseous state oxalic acid can flow into debinding furnace, the intake interface being also respectively provided on distillation case 410 inside connection
It (is not indicated in figure) with outlet interface, intake interface is for accessing nitrogen (N2), outlet interface accesses degreasing by gas passage
Oxalic acid gas is transported in debinding furnace by the flue reaction chamber in stove in this way by endlessly nitrogen.It needs to illustrate
When, in order to ensure that nitrogen can fully take away oxalic acid gas, intake interface and outlet interface should be preferably provided at distillation case
On 410 opposite flank, preferably make the body diagonal for being located proximate to distillation case 410 of two interfaces.In the side of distillation case 410
Rectangle feeding port is offered, the other end of sleeve 240 is fixedly connected on the outside of feeding port.
Feed mechanism is mounted on the inside of rectangular box 101, and feed mechanism includes mainly：Strip movable block 310, activity
The cross section of block 310 is in the rectangular shape of mating sleeve 240, and 310 activity of movable block is plugged in sleeve 240, in movable block 310
One end offer receiving hole 311 up and down, receiving hole 311 is located at the inside of feed opening 241, and receiving hole 311 can connect
It receives storage bin 210 and conveys the oxalic acid powder fallen.One end far from receiving hole 311 on movable block 310 is connected with a lead screw
320,320 gear of lead screw is connected to turbine reduction box 330, and the input terminal of turbine reduction box 330 is connected with feeding by shaft coupling
Motor 340 drives lead screw 320 to move along a straight line so that 320 drive activity of lead screw by feeding motor 340 by turbine reduction box 330
Block 310 does linear reciprocating motion in sleeve 240.When movable block 310 is pushed into distillation case, receiving hole 311 can stretch out in set
Cylinder 240 carries out distillation heating then the oxalic acid powder in receiving hole 311 drops into corresponding distillation case；When movable block 310
When being drawn out distillation case, receiving hole 311 can receive oxalic acid powder, blanking activity later by the feed opening 241 on sleeve 240
Block 310 is pushed into distillation case again, with this reciprocal progress feeding.
During 311 blanking of receiving hole, the problem of oxalic acid powder putty may be come out, so in order to overcome this
Problem is equipped with a dnockout stick 440 in distillation 410 inner wall of case, and the top of dnockout stick 440 stretches out in distillation case 410 and by gas
Dynamic driving moves up and down, and when receiving hole 311 is pushed into distillation case 410, dnockout stick 440 will move downward, by oxalic acid powder
All hit down on partition board 420.
Further, feeding mechanism is additionally provided with blender, which includes mainly：Stirring on case lid 220
Motor 250 and the stirring blade (not indicated in figure) in storage bin 210 are mixed, the line shaft of stirring motor 250 is under
Side is simultaneously sequentially connected in stirring blade, and it is to drive oxalic acid to drive stirring blade rotation, the effect of stirring blade by stirring motor 250
Powder particles contribute to oxalic acid powder to enter feed opening 241, while returning the crystallization caking that can smash oxalic acid.Stirring blade
Velocity of rotation can determine that oxalic acid powder falls into the speed of feed opening 241.
Further, there are certain intervals between the feed pipe of connector 230 and outer a set of cups, right on the side of outer a set of cups
Title offers inlet opening and apopore, and cooling water can be flowed into from inlet opening, after the outside tube wall for bypassing feed pipe, then from water outlet
It flows out in hole.The effect of inlet opening and apopore is that cooling water is allowed to reduce device temperature, ensures that oxalic acid powder begins in storage bin 210
It is that pulverulence form is in store eventually.
Refer to Fig. 3, operation of the invention：
1, oxalic acid powder first drops into the splicing of movable block from the lower port of storage bin by the feed opening of connector, sleeve
In hole, feeding motor drives lead screw main story, so that movable block is moved in a straight line using ball screw principle, and the grass in receiving hole
Sour powder is sent into inside distillation case, and and then dnockout stick is got to oxalic acid powder on partition board；Then, feeding motor driving lead screw is anti-
Turn, drives movable block to retreat to receiving hole and docked with the feed opening of sleeve, receiving hole connects splicing again, this just completes a cycle
Movement.The input quantity of oxalic acid powder can change the rotation of turbine reduction box by changing the rotating speed of motor, by rotating forward-stopping
- periodic type motion of reversion-pause changes the cycle movement of rotating forward-pause-reversion-pause of lead screw,
Also movable block is just changed and does the static cycle movement of-static-retrogressing-of advancing.
2, oxalic acid powder is heated to 80 DEG C~180 DEG C on the partition board to distil in case by heater strip, makes oxalic acid powder sublimes
At gaseous state, while intake interface is passed through nitrogen, drives oxalic acid gas to flow into debinding furnace by gas passage from outlet interface, carries out
Catalysis degreasing reacts, this process is carried out under totally-enclosed environment.The heating temperature of heater strip is unsuitable excessively high, otherwise
First oxalic acid can be decomposed, to influence the catalytic effect of degreasing；Temperature is also unsuitable too low, and otherwise oxalic acid can not be gasified totally, meeting
Enter in debinding furnace with some powder, and be sticked on outlet interface, blocks gas passage, influence the stream of nitrogen and oxalic acid gas
Enter, it is final to influence degreasing efficiency in debinding furnace.
Oxalic acid has the general character of acid, causes oxalic acid to be revealed in case of equipment fault, leaves, can be by carbonate (such as
Na2CO3) powder or solution handled (many safely when compared to nitric acid leakage), reaction equation is as follows：
H2C2O4+Na2CO3=CO2↑+Na2C2O4+H2O
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form, appoint
What those skilled in the art, without departing from the scope of the present invention, according to the technical essence of the invention to implementing above
Any brief introduction modification, equivalent variations and modification made by example, in the range of still falling within technical solution of the present invention.
Claims (9)
1. a kind of oxalic acid feeder, which is characterized in that including：Feeding mechanism, feed mechanism and gas transmission mechanism,
The feeding mechanism include infundibulate storage bin, sealing be placed on storage bin upper port case lid, be communicated in storage bin lower end
The vertical barrel connector of mouth and the horizontal bush set on connector bottom end, the case lid are equipped with filler interface, the water
The upper surface of flat sleeve is equipped with the feed opening for being communicated in connector；
The gas transmission mechanism include distil case, in distillation case bottom heater strip and the partition board that is covered on heater strip,
The intake interface that access nitrogen is respectively provided on the distillation case connects outlet inside debinding furnace with by gas passage
The side of interface, the distillation case offers feeding port, and horizontal bush one end connection is mounted on feeding port；
The feed mechanism includes the movable block that activity is plugged in sleeve, and one end of the movable block towards feeding port offers
Receiving hole up and down, when movable block exits feeding port, receiving hole can receive storage bin by connector and feed opening
The oxalic acid powder fallen is conveyed, when movable block penetrates feeding port, receiving hole blanking is fallen into distillation case.
2. oxalic acid feeder according to claim 1, which is characterized in that one end connection of the movable block far from receiving hole
There are a lead screw, screw gear to be connected to turbine reduction box, the input terminal of turbine reduction box connects feeding motor by shaft coupling,
Lead screw linear motion is driven by turbine reduction box by feeding motor so that lead screw drives movable block to do reciprocal fortune in sleeve
It is dynamic.
3. oxalic acid feeder according to claim 2, which is characterized in that the oxalic acid feeder further includes frame assembly,
The frame assembly includes rectangular box and the supporting rack mounted on rectangular box side, and the rectangular box is towards supporting rack
The same side offer port, the horizontal bush other end connection is on the port of rectangular box, the feeding motor
It is mounted in rectangular box with turbine reduction box, the distillation case is fixed on supporting rack.
4. oxalic acid feeder according to claim 1, which is characterized in that the connector includes the feed pipe being arranged inside and outside
With outer a set of cups, outer a set of cups lower end is sealedly and fixedly connected on the outside of feed opening, feed pipe lower end closed butt joint feed opening.
5. oxalic acid feeder according to claim 4, which is characterized in that between the feed pipe and outer a set of cups there are
Gap is arranged with inlet opening and apopore in the side of outer a set of cups, and cooling water can be flowed into from inlet opening, around the outer of feed pipe
After side pipe wall, then from apopore flow out.
6. oxalic acid feeder according to claim 1, which is characterized in that the feeding mechanism is additionally provided with blender, institute
Stating blender includes：Stirring motor on case lid and the stirring blade in storage bin, are driven by stirring motor
Stirring blade rotates.
7. oxalic acid feeder according to claim 1, which is characterized in that a dnockout stick is installed in the distillation case,
The top of dnockout stick stretches out in distillation case and is moved up and down by pneumatic actuation.
8. oxalic acid feeder according to claim 1, which is characterized in that the intake interface and outlet interface are respectively set
On the opposite flank of distillation case.
9. oxalic acid feeder according to claim 1, which is characterized in that the distillation case is close by rectangular box and case lid
Envelope is formed by connecting, and babinet is surrounded by left, right, front and rear and five blocks of bottom side plank, and the top of babinet offers case mouth, case lid
It is covered on case mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610839201.XA CN106225485B (en) | 2016-09-21 | 2016-09-21 | Oxalic acid feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| 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 |
| CN106986197A (en) * | 2017-04-24 | 2017-07-28 | 深圳市星特烁科技有限公司 | A kind of apron quantitive conveyor structure and catalysis degreasing stove |
| CN107934588A (en) * | 2017-12-21 | 2018-04-20 | 宁波斯百睿自控设备有限公司 | A kind of oxalic acid conveying device and catalysis degreasing device |
| CN110465656A (en) * | 2019-09-03 | 2019-11-19 | 深圳市湛鑫炉业有限公司 | A kind of Catalyzed by Oxalic Acid agent debinding furnace |
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| CN101152932A (en) * | 2006-09-27 | 2008-04-02 | 华东理工大学 | Feed device of carbonaceous solid powder with a plurality of discharge doors and feed method thereof |
| CN103144971A (en) * | 2013-03-04 | 2013-06-12 | 苏州华威工程技术有限公司 | Baking soda automatic quantitative charging machine |
| CN206073726U (en) * | 2016-09-21 | 2017-04-05 | 深圳市星特烁科技有限公司 | Oxalic acid feeder |
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| DE102007014917A1 (en) * | 2007-03-26 | 2008-10-02 | Platsch Gmbh & Co.Kg | Dosing device for powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101152932A (en) * | 2006-09-27 | 2008-04-02 | 华东理工大学 | Feed device of carbonaceous solid powder with a plurality of discharge doors and feed method thereof |
| CN103144971A (en) * | 2013-03-04 | 2013-06-12 | 苏州华威工程技术有限公司 | Baking soda automatic quantitative charging machine |
| CN206073726U (en) * | 2016-09-21 | 2017-04-05 | 深圳市星特烁科技有限公司 | Oxalic acid feeder |
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Effective date of registration: 20240321 Address after: No. 13, Binjiang Avenue, Zhongtang Town, Dongguan City, Guangdong Province, 523220 Patentee after: Guangdong Xingteshuo Equipment Technology Co.,Ltd. Country or region after: Zhong Guo Address before: No. 8, Gongye 3rd Road, Jiaotang Industrial Zone, Shajing Street, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN SINTERZONE TECHNOLOGY Co.,Ltd. Country or region before: Zhong Guo |