CN108705082B - Forming agent removing device - Google Patents
Forming agent removing device Download PDFInfo
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- CN108705082B CN108705082B CN201810556412.1A CN201810556412A CN108705082B CN 108705082 B CN108705082 B CN 108705082B CN 201810556412 A CN201810556412 A CN 201810556412A CN 108705082 B CN108705082 B CN 108705082B
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- 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
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- 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
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Abstract
The patent relates to the field of alloy production and discloses a forming agent removing device which comprises a sintering furnace and a box body, wherein an exhaust pipe and an air inlet pipe are arranged on the sintering furnace, the bottom of the exhaust pipe is communicated with a plurality of liquid discharge pipes, the liquid discharge pipes are positioned in the box body, the bottoms of all the liquid discharge pipes penetrate into a lower cavity and are communicated with a liquid collection pipe together, and the outlet end of the liquid collection pipe is communicated with a liquid box; the exhaust pipe is provided with a plurality of liquefaction units for enhancing the liquefaction effect of the forming agent, and each liquefaction unit mainly comprises a rotating shaft, a first turbine, a second turbine, a plurality of stirring rods, a first wedge-shaped block, a second wedge-shaped block, an oscillating plate, an insertion rod, a flexible sealing plate and an air bag; the gas storage box is also communicated with a return pipe, a third valve is arranged on the return pipe, and one end of the return pipe, which is far away from the gas storage box, penetrates into the lower chamber of the box body and is communicated with each liquid discharge pipe. The scheme can fully liquefy the gas forming agent and can more effectively recover the forming agent in the product.
Description
Technical Field
The invention belongs to the field of alloy dewaxing equipment.
Background
In the production process of cemented carbide, a forming agent is generally added to the product in order to form the product better, but if the forming agent stays in the product, the quality of the product is affected, so that the forming agent needs to be removed after sintering. The forming agent is in a gasification state under the condition of high temperature, the gasified forming agent is directionally moved by blowing or pumping, and the forming agent is recovered and stored by a dewaxing device.
The utility model discloses a chinese utility model patent that publication number is CN206457533U discloses a carbide production is with integrative stove of dewaxing sintering, including fritting furnace body, argon gas ventilation system, hydrogen ventilation system, evacuating device, temperature control system and pressure gauge all locate the fritting furnace body. The device realizes the removal of the forming agent by stepwise temperature rise and heat preservation under the micro-positive pressure hydrogen atmosphere. However, the device only uses the vacuum-pumping device to pump out the gaseous forming agent in the sintering furnace body, and does not liquefy and recover the gaseous forming agent, thereby causing great resource waste. Therefore, improvements in the apparatus are needed so that the gaseous forming agent can be sufficiently liquefied and recovered.
Disclosure of Invention
The invention aims to provide a forming agent removing device which can fully liquefy and recover a gaseous forming agent.
In order to achieve the above object, a basic aspect of the present invention provides a forming agent removing device, including a sintering furnace and a box body, where the box body includes an upper chamber and a lower chamber, and the upper chamber is filled with a cooling liquid; the outer wall of the box body is provided with a gas storage box for storing hydrogen and a liquid box for storing a liquid forming agent; an exhaust pipe and an air inlet pipe are arranged on the sintering furnace, one end of the air inlet pipe, far away from the sintering furnace, is communicated with the air storage box, and a first valve is arranged on the air inlet pipe; the exhaust pipe penetrates through the upper cavity of the box body and is communicated with the gas storage box, and a second valve is arranged on the exhaust pipe; the bottom of the exhaust pipe is communicated with a plurality of liquid discharge pipes, the liquid discharge pipes are positioned in the box body, the bottoms of all the liquid discharge pipes penetrate into the lower cavity and are communicated with a liquid collection pipe together, and the outlet end of the liquid collection pipe is communicated with the liquid box; the exhaust pipe is provided with a plurality of liquefaction units for enhancing the liquefaction effect of the forming agent, each liquefaction unit comprises a rotating shaft which is rotatably connected to the top of the box body, a plurality of stirring rods are fixed on the rotating shaft, and a first wedge-shaped block is arranged at the bottom of one stirring rod; the lower part of the rotating shaft penetrates into the exhaust pipe and the liquid discharge pipe and is fixedly provided with a first turbine and a second turbine, the first turbine is positioned in the exhaust pipe, and the second turbine is positioned in the liquid discharge pipe; an oscillating plate positioned below the stirring rod is arranged above the exhaust pipe, a plurality of first springs are fixed between the oscillating plate and the top of the exhaust pipe, and a second wedge-shaped block matched with the first wedge-shaped block is fixed at the top of the oscillating plate; an insert rod is fixed at the bottom of the oscillating plate, a movable opening is formed in the top of the exhaust pipe, a flexible sealing plate is fixed in the movable opening, and the bottom of the insert rod abuts against the flexible sealing plate; an air bag is fixed in the exhaust pipe and is positioned right below the flexible sealing plate; the gas storage box is also communicated with a return pipe, a third valve is arranged on the return pipe, and one end of the return pipe, which is far away from the gas storage box, penetrates into the lower chamber of the box body and is communicated with each liquid discharge pipe.
The principle of the basic scheme is as follows:
the gas mixed with the hydrogen gas and the gas forming agent is discharged from the sintering furnace to the exhaust pipe, and the gas is cooled by the coolant while flowing in the exhaust pipe, so that the gas forming agent is gradually liquefied and discharged from the drain pipe and the liquid collecting pipe to the liquid tank. The gas can act on the first turbine in each liquefaction unit in proper order in the flow process, and first turbine rotates and drives pivot, second turbine, a plurality of stirring rods and rotates together, and a plurality of stirring rods can stir the coolant liquid in the upper chamber in the rotation process. The second turbine can continuously pump the gas in the liquid discharge pipe into the exhaust pipe in the rotating process, and the hydrogen and the non-liquefied gaseous forming agent in the gas storage tank are sent back into the exhaust pipe again to ensure that the gaseous forming agent is liquefied again; meanwhile, the gas is pumped into the exhaust pipe, so that the waste caused by the liquefied gas forming agent entering the liquid discharge pipe can be prevented.
The stirring rod can drive the first wedge-shaped block to rotate together in the rotating process, the first wedge-shaped block can push the oscillating plate and the insert rod to move downwards through the mutual matching with the second wedge-shaped block, the first spring is compressed, the insert rod can push the flexible sealing plate to deform downwards and extrude the air bag in the downward moving process, so that the air bag expands and seals the exhaust pipe, the flow of gas in the exhaust pipe is prevented, and the retention time of the gas forming agent in the exhaust pipe is further prolonged. When first wedge staggers with the second wedge, oscillating plate and inserted bar move up gradually under the effect of first spring restoring force, and flexible sealing plate and gasbag also resume former shape gradually, form the clearance once more between gasbag and the blast pipe in order to supply the gas circulation.
The beneficial effect of this basic scheme lies in:
(1) the scheme can fully liquefy the gas forming agent and can more effectively recover the forming agent in the product.
(2) The stirring rod can stir the cooling liquid in the upper cavity in the rotating process, so that the relative movement of the cooling liquid and the exhaust pipe is accelerated, and the effect of accelerating the cooling liquefaction of the gaseous forming agent is achieved; in addition, in the rotating process of the stirring rod, the reaction force of the cooling liquid on the stirring rod can slow down the rotating speed of the first turbine, so that the flowing speed of the gas is slowed down, the retention time of the gas in the exhaust pipe is prolonged, the gaseous forming agent in the gas can be fully cooled and liquefied by the cooling liquid, and the recycling of the gaseous forming agent is facilitated.
(3) The first turbine consumes partial energy of the gas in the rotating process, so that the flowing speed of the gas is reduced, and the staying time of the gaseous forming agent in the exhaust pipe is prolonged, so that the gaseous forming agent in the gas can be fully cooled and liquefied by the cooling liquid, and the recycling of the gaseous forming agent is facilitated.
(4) The second turbine can continuously pump the gas in the liquid discharge pipe into the exhaust pipe when rotating, so that on one hand, the gas mixed with the gaseous forming agent in the exhaust pipe can be prevented from entering the liquid discharge pipe, the gaseous forming agent can flow in the exhaust pipe all the time, and the gaseous forming agent is fully cooled and liquefied by the cooling liquid; on the other hand, the gaseous forming agent entering the liquid discharge pipe can be pumped back into the exhaust pipe again for cooling liquefaction, so that the gaseous forming agent is liquefied fully, and the waste caused by the insufficiently liquefied gaseous forming agent entering the liquid tank is prevented; in addition, the rotation of the second turbine can also drive the hydrogen in the gas storage tank to flow to the liquid discharge pipe and the exhaust pipe, so that the gaseous forming agent can be further prevented from entering the liquid discharge pipe, the gaseous forming agent can be fully cooled and liquefied in the exhaust pipe, and the gaseous forming agent which enters the gas storage tank but is not fully liquefied can be returned to the exhaust pipe again for full liquefaction, so that the liquefaction effect of the gaseous forming agent is further improved, and the recycling of the gaseous forming agent is facilitated.
(5) This scheme can make the inserted bar let the flexible seal board take place deformation and extrude the gasbag through mutually supporting of first wedge and second wedge, makes the gasbag sealed with the blast pipe, and intermittent type nature has prevented the flow of the gas in the blast pipe to further prolonged the time that gaseous state forming agent stops in the blast pipe, made gaseous state forming agent can obtain more abundant liquefaction, be favorable to gaseous state forming agent's recycle.
Scheme II: preferably, a spiral pipe is wound on the liquid discharge pipe, an inlet of the spiral pipe is communicated with the upper cavity, and an outlet of the spiral pipe is communicated with the lower cavity; the bottom of the upper cavity is provided with a fixed seat and a cover plate, the cover plate is connected to the bottom of the upper cavity in a sliding manner, a second spring is fixed between the cover plate and the fixed seat, and the cover plate is provided with a butt joint which is matched with the inlet of the spiral pipe; and a third wedge block is fixed on the cover plate, a connecting rod is fixed on the inserted rod, and a fourth wedge block matched with the third wedge block is fixed at the bottom of the connecting rod.
In this scheme, the inserted bar can drive connecting rod and fourth wedge and move down, and the fourth wedge can promote the apron through the cooperation with the third wedge and move left to make the interface on the apron be linked together with the import of spiral pipe, let the coolant liquid that has absorbed the gas heat enter into the spiral pipe, keep warm to the shaping agent that has liquefied, prevent that the shaping agent from flowing to the liquid tank in-process because of the solidification unable liquid tank that flows.
The third scheme is as follows: preferably, a scraper is fixed at the bottom of the rotating shaft and abuts against the inner wall of the liquid discharge pipe. The scraper blade in the scheme can scrape the liquefied forming agent on the inner wall of the liquid discharge pipe in the process of rotating along with the rotating shaft, so that the liquid forming agent above the scraper blade can flow at an accelerated speed, and the liquid forming agent can be collected in the liquid tank as soon as possible.
And the scheme is as follows: preferably, a refrigerator is arranged in the gas storage tank. The refrigerator can cool the gas in the gas storage tank, so that the gas in the gas storage tank can further cool the gaseous forming agent to liquefy the gaseous forming agent in the process of passing through the return pipe and the exhaust pipe, and the liquefying effect of the gaseous forming agent is further enhanced.
And a fifth scheme: in the preferable mode of the basic scheme, a feed box for adding the cooling liquid into the upper chamber of the box body is fixed at the upper part of the box body. The charging box can supply cooling liquid for the upper chamber in time, and gas in the exhaust pipe can be fully liquefied.
Scheme six: preferably, a sealing ring is arranged between the rotating shaft and the exhaust pipe. The sealing ring can enhance the sealing performance between the exhaust pipe and the rotating shaft.
Drawings
FIG. 1 is a schematic structural view of a forming agent removing device according to the present invention;
FIG. 2 is a top view of the cover plate of FIG. 1;
fig. 3 is a right side view of the exhaust pipe of fig. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a sintering furnace 1, a box body 2, an exhaust pipe 3, an air inlet pipe 4, a return pipe 5, an air storage box 6, a liquid box 7, a rotating shaft 8, a stirring rod 9, a first wedge block 10, a second wedge block 11, an oscillating plate 12, a first spring 13, an inserted rod 14, a flexible sealing plate 15, an air bag 16, a first turbine 17, a second turbine 18, a liquid discharge pipe 19, a spiral pipe 20, a cover plate 21, a third wedge block 22, a second spring 23, a fixed seat 24, a fourth wedge block 25, a liquid collection pipe 26, an upper chamber 27, a lower chamber 28, a scraper 29, a first valve 30, a second valve 31, a third valve 32, a butt joint 33, an inlet 34 and a connecting rod 35.
The embodiment is basically as shown in the attached figure 1:
the forming agent removing device mainly comprises a sintering furnace 1, a box body 2, an exhaust pipe 3, an air inlet pipe 4, a return pipe 5, a liquefaction unit, an air storage tank 6 and a liquid tank 7. The box body 2 comprises an upper chamber 27 and a lower chamber 28, wherein the upper chamber 27 is filled with cooling liquid, and the top of the box body 2 is provided with a feed box which is used for adding the cooling liquid into the upper chamber 27 of the box body 2. The outer wall of the right side of the box body 2 is provided with a gas storage box 6 for storing hydrogen and a liquid box 7 for storing a liquid forming agent, and a refrigerator is arranged in the gas storage box 6. The upper portion of the sintering furnace 1 is provided with an exhaust pipe 3, the lower portion of the sintering furnace 1 is provided with an air inlet pipe 4, one end, far away from the sintering furnace 1, of the air inlet pipe 4 is communicated with an air storage box 6, and the air inlet pipe 4 is provided with a first valve 30. The exhaust pipe 3 passes through the upper chamber 27 of the case 2 and communicates with the air tank 6, and the exhaust pipe 3 is provided with a second valve 31. The bottom of the exhaust pipe 3 is communicated with a plurality of liquid discharge pipes 19, the liquid discharge pipes 19 are positioned in the box body 2, the bottoms of all the liquid discharge pipes 19 penetrate into the lower cavity 28 and are communicated with the liquid collection pipe 26 together, the liquid collection pipe 26 is positioned in the lower cavity 28 of the box body 2, and the outlet end of the liquid collection pipe 26 is communicated with the liquid tank 7.
A spiral pipe 20 is wound on the drain pipe 19, an inlet 34 of the spiral pipe 20 communicates with the upper chamber 27, and an outlet of the spiral pipe 20 communicates with the lower chamber 28. The fixing seat 24 is welded at the bottom of the upper chamber 27, the cover plate 21 is connected to the bottom of the upper chamber 27 in a sliding manner, the second spring 23 is welded between the cover plate 21 and the fixing seat 24, and as shown in fig. 2, the cover plate 21 is provided with a butt joint 33 matched with the inlet 34 of the spiral pipe 20. The cover plate 21 is welded with a third wedge block 22, the inserted link 14 is welded with a connecting rod 35, and the bottom of the connecting rod 35 is fixed with a fourth wedge block 25 matched with the third wedge block 22.
The exhaust pipe 3 is provided with a plurality of liquefaction units which are used for enhancing the liquefaction effect of the forming agent. The liquefaction unit mainly comprises a rotating shaft 8, a first turbine 17, a second turbine 18, a plurality of stirring rods 9, a first wedge-shaped block 10, a second wedge-shaped block 11, an oscillating plate 12, an inserted link 14, a flexible sealing plate 15 and an air bag 16. The top of the rotating shaft 8 is rotatably connected to the box body 2, a plurality of stirring rods 9 are welded on the upper portion of the rotating shaft 8, and a first wedge-shaped block 10 is welded at the bottom of one stirring rod 9; the lower part of the rotating shaft 8 penetrates into the exhaust pipe 3 and the liquid discharge pipe 19, a first turbine 17 and a second turbine 18 are mounted on the lower part of the rotating shaft 8, the first turbine 17 is positioned in the exhaust pipe 3, and the second turbine 18 is positioned in the liquid discharge pipe 19; a sealing ring is arranged between the rotating shaft 8 and the exhaust pipe 3. The bottom of the rotating shaft 8 is welded with a scraper 29, and the scraper 29 is abutted against the inner wall of the discharge pipe 19. The oscillating plate 12 is located between the stirring rod 9 and the exhaust pipe 3, two first springs 13 are welded between the oscillating plate 12 and the top of the exhaust pipe 3, a second wedge block 11 is welded at the top of the oscillating plate 12, and the second wedge block 11 is matched with the first wedge block 10. An insert rod 14 is welded at the bottom of the oscillating plate 12, a movable opening is formed in the top of the exhaust pipe 3, a flexible sealing plate 15 is fixed in the movable opening, and the bottom of the insert rod 14 abuts against the flexible sealing plate 15; an air bag 16 is installed in the exhaust pipe 3, and the air bag 16 is located right below the flexible sealing plate 15.
The air storage box 6 is communicated with a return pipe 5, a third valve 32 is arranged on the return pipe 5, one end, far away from the air storage box 6, of the return pipe 5 penetrates into the lower chamber 28 of the box body 2 and is communicated with each liquid discharge pipe 19, and the third valve 32 is used for controlling air in the air storage box 6 to flow into the return pipe 5 and the liquid discharge pipes 19.
Initially, the bladder 16 is filled with air but is not fully inflated. During specific work, the first valve 30 is opened, so that hydrogen in the gas storage tank 6 enters the sintering furnace 1 through the gas inlet pipe 4, and the gas forming agent in the sintering furnace 1 is driven to be discharged into the gas outlet pipe 3. When the second valve 31 and the third valve 32 are opened, the gas mixed with the hydrogen gas and the gas forming agent is discharged from the sintering furnace 1 to the exhaust pipe 3, the gas is cooled by the coolant while flowing through the exhaust pipe 3, the gas forming agent is gradually liquefied and discharged from the drain pipe 19 to the liquid collecting pipe 26, and is further collected in the liquid tank 7 to be stored, and the coolant is gradually heated by absorbing heat in the gas.
The gas acts on the first turbines 17 in the liquefaction units in sequence in the flowing process to enable the first turbines 17 to rotate, partial energy is consumed in the process that the gas acts on the first turbines 17 to enable the first turbines 17 to rotate, the reaction force of the cooling liquid to the stirring rod 9 in the rotating process of the stirring rod 9 can also slow down the rotating speed of the first turbines 17, the flowing speed of the gas is accordingly slowed down, the staying time of the gas in the exhaust pipe 3 is prolonged, and therefore the gaseous forming agent in the gas can be fully cooled and liquefied by the cooling liquid. The first turbine 17 rotates to drive the rotating shaft 8, the second turbine 18 and the plurality of stirring rods 9 to rotate together, and the plurality of stirring rods 9 can stir the cooling liquid in the upper chamber 27 in the rotating process to accelerate the relative movement of the cooling liquid and the exhaust pipe 3, so that the effect of accelerating the cooling liquefaction of the gaseous forming agent is achieved. The second turbine 18 can continuously pump the gas in the discharge pipe 19 into the exhaust pipe 3 during the rotation process, on one hand, the gas mixed with the gaseous forming agent in the exhaust pipe 3 can be prevented from entering the discharge pipe 19, the gaseous forming agent can flow in the exhaust pipe 3 all the time and be liquefied by the cooling liquid, the gaseous forming agent can be fully liquefied, on the other hand, the gaseous forming agent entering the discharge pipe 19 can be pumped back into the exhaust pipe 3 again for cooling liquefaction, the gaseous forming agent can be fully liquefied, and the gaseous forming agent which is not fully liquefied can be prevented from entering the liquid tank 7 to cause waste; in addition, the rotation of the second turbine 18 can also drive the hydrogen in the gas storage tank 6 to flow into the liquid discharge pipe 19 and the exhaust pipe 3, so that on one hand, the gaseous forming agent can be further prevented from entering the liquid discharge pipe 19, the gaseous forming agent can be sufficiently cooled and liquefied in the exhaust pipe 3, on the other hand, the gaseous forming agent which enters the gas storage tank 6 but is not completely liquefied can be returned to the exhaust pipe 3 again for sufficient liquefaction, and the liquefaction effect of the gaseous forming agent is further improved.
The stirring rod 9 can drive the first wedge-shaped block 10 to rotate together in the rotating process, when the first wedge-shaped block 10 abuts against the second wedge-shaped block 11, the first wedge-shaped block 10 can push the oscillating plate 12 and the insert rod 14 to move downwards through mutual matching with the second wedge-shaped block 11, the first spring 13 is compressed, the insert rod 14 can push the flexible sealing plate 15 to deform downwards and extrude the air bag 16 in the downward moving process, so that the air bag 16 expands and seals the exhaust pipe 3, the flow of gas in the exhaust pipe 3 is prevented, the staying time of the gaseous forming agent in the exhaust pipe 3 is further prolonged, and the gaseous forming agent can be liquefied more sufficiently. In addition, the connecting rod 35 and the fourth wedge block 25 are driven to move downwards by the plug rod 14 in the downward moving process, the fourth wedge block 25 gradually abuts against the third wedge block 22 and pushes the third wedge block 22 and the cover plate 21 to move leftwards, so that the butt joint port 33 on the cover plate 21 is communicated with the inlet 34 of the spiral pipe 20, at the moment, cooling liquid absorbing gas heat in the upper chamber 27 can enter the spiral pipe 20 from the inlet 34, and the spiral pipe 20 is coiled on the liquid discharge pipe 19, so that the cooling liquid flowing through the spiral pipe 20 can keep the temperature of the liquefied forming agent, and the forming agent is prevented from being solidified and cannot flow into the liquid tank 7 in the process of flowing to the liquid tank 7.
When the first wedge block 10 is staggered with the second wedge block 11, the oscillating plate 12 and the insertion rod 14 gradually return to the original position upwards under the restoring force of the first spring 13, the flexible sealing plate 15 and the air bag 16 also gradually return to the original shape, and a gap is formed between the air bag 16 and the exhaust pipe 3 again to allow air to flow. The inserted link 14 drives the fourth wedge block 25 to return upwards through the connecting rod 35, the third wedge block 22 and the cover plate 21 return to the original position rightwards under the restoring force of the second spring 23, so that the butt joint port 33 on the cover plate 21 is staggered with the inlet 34 of the spiral pipe 20, and the cover plate 21 seals the inlet 34 of the spiral pipe 20 again.
The oscillating plate 12 can drive the cooling liquid in the upper chamber 27 to move up and down in the up-and-down movement process, and the cover plate 21 can drive the cooling liquid to move left and right by moving left and right, so that the relative movement of the cooling liquid and the exhaust pipe 3 is accelerated, and the effect of accelerating the cooling liquefaction of the gaseous forming agent is achieved. Further, the lateral movement of the cover plate 21 allows the cooling liquid that has absorbed the heat of the gas to intermittently flow into the spiral tube 20, thereby keeping the liquid-state forming agent warm and preventing the forming agent from solidifying. The coolant in the coil 20 flowing out of the outlet of the coil 20 collects in the lower chamber 28, which further keeps the liquefied forming agent in the header 26 from solidifying during the flowing process.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The forming agent removing device comprises a sintering furnace and a box body, and is characterized in that: the box body comprises an upper chamber and a lower chamber, and cooling liquid is filled in the upper chamber; the outer wall of the box body is provided with a gas storage box for storing hydrogen and a liquid box for storing a liquid forming agent; an exhaust pipe and an air inlet pipe are arranged on the sintering furnace, one end of the air inlet pipe, far away from the sintering furnace, is communicated with the air storage box, and a first valve is arranged on the air inlet pipe; the exhaust pipe penetrates through the upper cavity of the box body and is communicated with the gas storage box, and a second valve is arranged on the exhaust pipe; the bottom of the exhaust pipe is communicated with a plurality of liquid discharge pipes, the liquid discharge pipes are positioned in the box body, the bottoms of all the liquid discharge pipes penetrate into the lower cavity and are communicated with a liquid collection pipe together, and the outlet end of the liquid collection pipe is communicated with the liquid box;
the exhaust pipe is provided with a plurality of liquefaction units for enhancing the liquefaction effect of the forming agent, each liquefaction unit comprises a rotating shaft which is rotatably connected to the top of the box body, a plurality of stirring rods are fixed on the rotating shaft, and a first wedge-shaped block is arranged at the bottom of one stirring rod; the lower part of the rotating shaft penetrates into the exhaust pipe and the liquid discharge pipe and is fixedly provided with a first turbine and a second turbine, the first turbine is positioned in the exhaust pipe, and the second turbine is positioned in the liquid discharge pipe; an oscillating plate positioned below the stirring rod is arranged above the exhaust pipe, a plurality of first springs are fixed between the oscillating plate and the top of the exhaust pipe, and a second wedge-shaped block matched with the first wedge-shaped block is fixed at the top of the oscillating plate; an insert rod is fixed at the bottom of the oscillating plate, a movable opening is formed in the top of the exhaust pipe, a flexible sealing plate is fixed in the movable opening, and the bottom of the insert rod abuts against the flexible sealing plate; an air bag capable of sealing the exhaust pipe is fixed in the exhaust pipe and is positioned right below the flexible sealing plate;
the gas storage box is also communicated with a return pipe, a third valve is arranged on the return pipe, and one end of the return pipe, which is far away from the gas storage box, penetrates into the lower chamber of the box body and is communicated with each liquid discharge pipe.
2. The forming agent removing device according to claim 1, wherein: a spiral pipe is wound on the liquid discharge pipe, the inlet of the spiral pipe is communicated with the upper cavity, and the outlet of the spiral pipe is communicated with the lower cavity; the bottom of the upper cavity is provided with a fixed seat and a cover plate, the cover plate is connected to the bottom of the upper cavity in a sliding manner, a second spring is fixed between the cover plate and the fixed seat, and the cover plate is provided with a butt joint which is matched with the inlet of the spiral pipe; and a third wedge block is fixed on the cover plate, a connecting rod is fixed on the inserted rod, and a fourth wedge block matched with the third wedge block is fixed at the bottom of the connecting rod.
3. The forming agent removing device according to claim 2, wherein: and a scraper is fixed at the bottom of the rotating shaft and abuts against the inner wall of the liquid discharge pipe.
4. The forming agent removing device according to claim 1, wherein: a refrigerator is arranged in the gas storage box.
5. The forming agent removing device according to claim 1, wherein: and a feeding box for adding cooling liquid into the upper cavity of the box body is fixed on the upper part of the box body.
6. The forming agent removing device according to claim 1, wherein: and a sealing ring is arranged between the rotating shaft and the exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810556412.1A CN108705082B (en) | 2018-05-31 | 2018-05-31 | Forming agent removing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810556412.1A CN108705082B (en) | 2018-05-31 | 2018-05-31 | Forming agent removing device |
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| CN108705082A CN108705082A (en) | 2018-10-26 |
| CN108705082B true CN108705082B (en) | 2020-01-17 |
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| JP6020961B2 (en) * | 2012-09-27 | 2016-11-02 | 日立金属株式会社 | Composition for injection molding and method for producing sintered body using the same |
| CN205288734U (en) * | 2015-11-23 | 2016-06-08 | 深圳富欣达自动化有限公司 | Can arrange solid -liquid separation section of thick bamboo of material automatically |
| CN207095269U (en) * | 2017-06-07 | 2018-03-13 | 株洲瑞德尔冶金设备制造有限公司 | Sintering furnace dewaxing device |
| CN107120961B (en) * | 2017-06-07 | 2023-07-21 | 株洲瑞德尔智能装备有限公司 | Dewaxing device for sintering furnace |
| CN107312959A (en) * | 2017-06-15 | 2017-11-03 | 北京科技大学广州新材料研究院 | It is a kind of to prepare the method with high-volume fractional diamond/aluminum composite |
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