A quantitative furnace for convenient slag discharge and a method of using the same

Abstract

The present invention discloses a quantitative furnace and a method for using the same for convenient slag discharge, which belongs to the technical field of quantitative furnaces, and includes a quantitative furnace body: the quantitative furnace body has a self-slag discharge type feeding component; the self-slag discharge type feeding component includes a self-sealing cover feeding component, a filtering component, a slag scraping component and a slag discharge component, the self-sealing cover feeding component is installed at the feeding port of the quantitative furnace body, the self-sealing cover feeding component has a filtering component, and the inner wall of the filtering component is connected to the slag scraping component, the slag scraping component is installed on the self-sealing cover feeding component, and the self-sealing cover feeding component is connected to the slag discharge component; the self-sealing cover feeding component has an exhaust component; the exhaust component includes a sealed air intake component, a stirring component and an air outlet component; the discharge end of the quantitative furnace body is connected to a material guide component for adjusting the discharge position and heat preservation of the discharge. Through the above method, the filter residue of the present invention enters the slag discharge component by its own gravity and is automatically discharged without additional processing, which is conducive to the entry of pure molten metal into the quantitative furnace body and is conducive to practical use.

Description

Technical Field

[0001] The invention relates to the technical field of quantitative furnaces, and in particular to a quantitative furnace for convenient slag discharge and a use method thereof. Background Art

[0002] The quantitative furnace is used to provide a quantitative amount of molten metal liquid to the die-casting mold equipment. The metal liquid fed into the die-casting mold is cooled to form a die-casting part.

[0003] Chinese patent CN214684217U discloses an automatic heat preservation quantitative furnace, which includes a furnace body, a pressure adding and unloading mechanism, a liquid level detection mechanism and a control module. The furnace body is provided with a feeding chamber, a heat preservation chamber and a pressure chamber which are connected in sequence. The heat preservation chamber is connected to the pressure chamber through a one-way mechanism, and the pressure chamber is connected to a liquid lifting mechanism for discharging materials. The pressure adding and unloading mechanism is connected to the pressure chamber. The liquid level detection mechanism is arranged on the liquid lifting mechanism, and the liquid level detection mechanism is used to obtain the liquid level height information in the liquid lifting mechanism. The control module is electrically connected to the pressure adding and unloading mechanism, and the control module is electrically connected to the liquid level detection mechanism, and the control module is used to control the pressure adding and unloading mechanism to pressurize or unpressurize the pressure chamber according to the pressure information fed back by the liquid level detection mechanism. The above-mentioned automatic heat preservation quantitative furnace can automatically feed quantitatively, has high feeding efficiency, and has good material cleanliness.

[0004] However, the above patented molten metal generally has some impurities remaining in the furnace body, and the bottom of the furnace body is in a flat state. Cleaning the impurities requires additional operations, which is not conducive to practical use;

[0005] The above patent does not design a degassing structure. When the molten metal enters the furnace, the molten metal contains gas and the purity of the molten metal is not high.

[0006] The discharging of the above-mentioned patented discharging structure is in a fixed state, and the discharging point of the discharging structure does not contact the receiving hopper of the receiving machine of the die-casting machine when discharging. Eddy currents will occur when the metal liquid flows at the discharging point of the discharging structure. When the metal liquid eddies, air will be drawn into the metal liquid. When the amount of air entrained is large, it will affect the quality of the finished product.

[0007] Based on this, the present invention designs a quantitative furnace for convenient slag discharge and a method of using the same to solve the above problems. Summary of the invention

[0008] In view of the above-mentioned shortcomings of the prior art, the present invention provides a quantitative furnace for convenient slag discharge and a method for using the same.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A quantitative furnace for convenient slag discharge, comprising a quantitative furnace body:

[0011] The feed inlet of the quantitative furnace body is connected with a self-slag-discharging feed component for feeding liquid and filtering and discharging slag;

[0012] The self-discharging slag feeding assembly comprises a self-sealing feeding assembly, a filtering assembly, a slag scraping assembly and a slag discharging assembly. The self-sealing feeding assembly for feeding and for the top self-sealing cover is fixedly installed at the feeding port of the quantitative furnace body. The self-sealing feeding assembly is connected with a filtering assembly for solid-liquid separation, and the inner wall of the filtering assembly is fitted and slidably connected with the slag scraping assembly for scraping the filter residue on the inner wall of the filtering assembly. The slag scraping assembly is installed on the self-sealing feeding assembly. The self-sealing feeding assembly is connected with the slag discharging assembly for discharging the filter residue in the filtering assembly, and the feeding end of the slag discharging assembly is plugged with the discharging end of the filtering assembly.

[0013] An exhaust assembly for degassing is provided on the front side of the self-sealing cap feeding assembly;

[0014] The exhaust assembly includes a sealed air intake assembly, a stirring assembly and an air outlet assembly. The sealed air intake assembly for inert gas intake and completely covering the stirring assembly is fixedly installed on the top of the quantitative furnace body, and the sealed air intake assembly is located at the front side of the self-sealing cover feeding assembly. The stirring assembly for driving the flow of molten metal is installed on the top of the quantitative furnace body. The driving end of the stirring assembly is installed in the sealed air intake assembly. The stirring end of the stirring assembly is located in the quantitative furnace body, and the stirring assembly is communicated with the sealed air intake assembly. The bottom of the stirring end of the stirring assembly is connected to an air outlet assembly for uniform exhaust of inert gas.

[0015] The discharge end of the quantitative furnace body is connected to a material guide assembly for adjusting the discharge position and keeping the discharge warm. When discharging, the discharge end of the material guide assembly is inserted into the receiving hopper of the die-casting machine. When not discharging, the discharge end of the material guide assembly is located above the receiving hopper of the die-casting machine.

[0016] Furthermore, the self-sealing feeding assembly includes a sealing cover, a fourth articulated seat, a fifth articulated seat, a second cylinder, a first side support seat and a barrel. The quantitative furnace body is fixedly connected to the barrel at the feed port located on the rear right end, the left side wall of the barrel is fixedly connected to the first side support seat, the top of the inclined part of the first side support seat is rotatably connected to the outer wall of the cylinder body of the second cylinder, the second cylinder driving end is rotatably connected to the fourth articulated seat, the bottom of the fourth articulated seat is fixedly connected to the sealing cover, and the bottom of the sealing cover is in close contact with the top of the barrel, the left end of the sealing cover is fixedly connected to the fifth articulated seat, the fifth articulated seat is fixedly connected to the top of the upright part of the first side support seat, and the top of the sealing cover is connected to the scraping assembly.

[0017] Furthermore, the filter assembly includes a conical filter bucket and a support ring, the support ring is fixedly mounted on the inner wall of the barrel, the top of the outer wall of the conical filter bucket is in close contact with the support ring, the inner wall of the conical filter bucket is in close contact and sliding connection with the scraping assembly, and the lower end of the conical filter bucket is in close contact and plugged with the inner wall of the upper end of the slag discharge assembly;

[0018] The inclination angle of the conical filter bucket is thirty to sixty degrees.

[0019] Furthermore, the scraper assembly includes a second motor, a straight shaft and an arc-shaped scraper. The second motor is fixedly mounted on the top of the sealing cover. The driving end of the second motor is connected to the straight shaft. The bottom of the straight shaft is connected to the arc-shaped scraper at equal intervals along the circumferential direction, and the outer wall of the arc-shaped scraper is slidably connected to the inner wall of the conical filter bucket.

[0020] Furthermore, the slag discharge assembly includes an oblique discharge pipe, a gear ring, a rotating shaft, a valve plate, a gear plate, a straight rod, a second side support seat, a third cylinder and a straight pipe. The lower end of the barrel side wall is connected to the oblique discharge pipe, the top of the oblique discharge pipe is fixedly connected to the bottom of the straight pipe, the inner wall of the upper end of the straight pipe is plugged into the outer wall of the lower end of the conical filter bucket, the straight pipe is rotatably connected to the rotating shaft through a bearing, the inner and outer ends of the rotating shaft are fixedly connected to the valve plate and the gear ring, and the outer wall of the valve plate is fitted and slidably connected to the inner wall of the straight pipe, and the valve plate is located below the conical filter bucket, the second side support seat is fixedly installed on the outer wall of the barrel, the bottom of the second side support seat is fixedly connected to the third cylinder and the straight rod, and the driving end of the third cylinder is fixedly connected to the gear plate, and the gear plate is fitted and slidably connected to the straight rod through a sliding hole, and the gear plate is meshingly connected to the gear ring.

[0021] Furthermore, the sealed air intake assembly includes an outer cover and an air intake pipe. The outer cover is fixedly installed on the top of the quantitative furnace body. The outer cover is located on the front side of the barrel of the self-sealing feed assembly. The top of the outer cover is fixedly connected with the air intake pipe, and the driving end of the stirring assembly is located inside the outer cover.

[0022] Furthermore, the stirring assembly includes a hollow shaft, stirring blades, a transmission assembly and a first motor. The first motor is fixedly installed on the top of the quantitative furnace body. The driving end of the first motor is connected to the hollow shaft through the transmission assembly. The quantitative furnace body is rotatably connected to the hollow shaft through a bearing. The upper end of the hollow shaft, the transmission assembly and the first motor are all located in the outer cover. The lower end of the hollow shaft passes through the top of the quantitative furnace body and is fixedly connected with stirring blades at equal intervals along the circumferential direction. The air outlet assembly is located at the lower end of the hollow shaft.

[0023] Furthermore, the air outlet component includes oblique air outlet holes and a conical block. The lower end of the hollow shaft is provided with oblique air outlet holes at equal intervals along the circumference, and the oblique air outlet holes are staggered with the stirring blades. The bottom of the hollow shaft is threadedly connected with a conical block, and the top of the conical block is in a conical state.

[0024] Furthermore, the material guiding assembly includes a discharging assembly, an adjusting assembly and a box-type heating device. The adjusting assembly for adjusting the position of the discharging assembly is connected to the box-type heating device for keeping the discharging assembly warm. The inner wall of the box-type heating device is connected to the discharging assembly for discharging.

[0025] In order to better achieve the purpose of the present invention, the present invention also provides a method for using a quantitative furnace that facilitates slag discharge, comprising the following steps:

[0026] Step 1: When adding liquid, the third cylinder of the slag discharge assembly drives the tooth plate to move upward along the straight rod, the tooth plate drives the gear ring to rotate, the gear ring drives the rotating shaft to rotate, the rotating shaft drives the valve plate to rotate in the straight pipe to a horizontal state, the valve plate blocks the straight pipe, and the second cylinder telescopic end of the self-sealing cover feeding assembly of the self-slag discharge feeding assembly is recovered, the second cylinder drives the fourth articulated seat to move, and under the action of the fifth articulated seat, the fourth articulated seat drives the sealing cover to rotate along the fifth articulated seat to open the top of the barrel, and the molten metal is added to the barrel of the self-sealing cover feeding assembly, and the conical filter bucket of the filter assembly is filtered, and the filter residue is left in the conical filter bucket of the filter assembly. The molten metal enters the quantitative furnace body through the barrel of the self-sealing cover feeding assembly, and then the second cylinder of the self-sealing cover feeding assembly extends. The second cylinder drives the fourth articulated seat to move, and under the action of the fifth articulated seat, the fourth articulated seat drives the sealing cover to rotate along the fifth articulated seat, and the sealing cover rotates until it is in contact with the top of the barrel, and the top of the barrel is self-sealed. Then, the second motor of the scraper assembly drives the straight shaft to rotate, and the straight shaft drives the arc scraper to rotate. The arc scraper rotates on the inner wall of the conical filter bucket of the filter assembly. At the same time, the third cylinder of the slag discharge assembly drives the tooth plate to move downward along the straight rod, the tooth plate drives the gear ring to rotate, the gear ring drives the rotating shaft to rotate, and the rotating shaft drives the valve plate to rotate in the straight pipe to a vertical state. The straight pipe opens, and the arc scraper scrapes the filter residue in the conical filter bucket. The filter residue enters the straight pipe of the slag discharge assembly through its own gravity, and then is discharged from the inclined discharge pipe, and then the quantitative furnace body is subjected to insulation treatment;

[0027] Step 2: The first motor of the stirring assembly drives the transmission assembly to rotate, the transmission assembly drives the hollow shaft to rotate, the hollow shaft drives the stirring blades to rotate, the stirring blades rotate to stir, and the inert gas enters the outer cover of the sealed air inlet assembly through the air inlet pipe, and then passes through the hollow shaft of the stirring assembly and is discharged from the oblique air outlet of the air outlet assembly;

[0028] Step 3: After exhausting, the telescopic end of the adjusting component of the material guide component is recovered, and the adjusting component drives the discharging end of the discharging component to be inserted into the receiving hopper of the die-casting machine. The molten metal in the quantitative furnace body enters the discharging component through the discharging port, and then enters the receiving hopper of the die-casting machine from the discharging component.

[0029] The present invention has the following technical effects:

[0030] The self-sealing cover of the self-slag discharge type feeding assembly of the present invention is opened at the top, and the molten metal is added into the self-sealing cover feeding assembly, filtered through the filter assembly, and the filter residue is left in the filter assembly. The molten metal enters the quantitative furnace body through the self-sealing cover feeding assembly, and then the self-sealing cover on the top of the self-sealing cover feeding assembly is processed. When slag discharge is required, the scraping assembly rotates on the inner wall of the filter assembly. At the same time, the slag discharge assembly is opened, and the filter residue enters the slag discharge assembly by its own gravity and is automatically discharged without additional processing, which is conducive to the pure molten metal entering the quantitative furnace body and is conducive to practical use. At the same time, the scraping assembly is convenient for scraping the filter residue on the inner wall of the filter assembly, which is conducive to the filter residue moving to the slag discharge assembly, and avoids clogging of the filter assembly, thereby ensuring the filtering performance of the filter assembly.

[0031] The stirring assembly of the present invention stirs, and the inert gas enters the sealed air inlet assembly, and then is discharged from the air outlet assembly through the stirring assembly. The inert gas introduced is broken into a large number of diffuse bubbles, which are dispersed in the molten metal and slowly float up in a spiral. The bubbles absorb hydrogen and oxidized slag in the molten metal by relying on the gas pressure difference and surface adsorption principle, and are taken out of the surface of the molten metal as the bubbles rise, thereby purifying the molten metal and improving the purity of the molten metal. The high-speed inert gas flows in the sealed air inlet assembly, which can take away the heat generated by the driving end of the stirring assembly, cool it, and reduce the influence of high temperature on the driving end of the stirring assembly, which is beneficial to prolonging the service life of the driving end of the stirring assembly. In addition, the sealed air inlet assembly completely covers the stirring assembly, thereby preventing the gas in the quantitative furnace body from being discharged from the connection between the stirring assembly and the quantitative furnace body, and ensuring the temperature stability and air pressure stability as much as possible.

[0032] When discharging materials, the discharge end of the material guide component is inserted into the receiving hopper of the die-casting machine. As the amount of molten metal added in the receiving hopper of the die-casting machine increases, the height of the molten metal in the receiving hopper of the die-casting machine increases. When the material guide component continues to discharge liquid, the molten metal at the discharge end of the material guide component directly contacts the molten metal in the receiving hopper of the die-casting machine. The molten metal in the receiving hopper of the die-casting machine buffers the molten metal flowing at the discharge end of the material guide component, reduces the rotational power of the molten metal at the discharge end of the material guide component, and reduces the eddy current of the molten metal at the discharge end of the material guide component. After the eddy current of the molten metal at the discharge end of the material guide component is reduced, the amount of gas drawn in by the eddy current can be reduced, thereby ensuring the improvement of the purity of the molten metal. When not discharging materials, the discharge end of the material guide component is located above the receiving hopper of the die-casting machine, which can prevent the material guide component from affecting the movement of the subsequent injection hammer head. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A three-dimensional quantitative furnace for convenient slag discharge of the present invention Figure 1 ;

[0035] Figure 2 A front view of a quantitative furnace for convenient slag discharge according to the present invention;

[0036] Figure 3 A three-dimensional quantitative furnace for convenient slag discharge of the present invention Figure 2 ;

[0037] Figure 4 The self-slag discharge type feeding assembly of the present invention is a three-dimensional Figure 1 ;

[0038] Figure 5 It is a left view of the self-discharging feeding assembly of the present invention;

[0039] Figure 6 The self-slag discharge feeding assembly of the present invention is a three-dimensional Figure 2 ;

[0040] Figure 7 For along Figure 5 AA direction cross-sectional view;

[0041] Figure 8 for Figure 6 The enlarged view of point D in the middle;

[0042] Fig. 9 The exhaust assembly of the present invention is three-dimensional Figure 1 ;

[0043] Fig.10 It is a left side view of the exhaust assembly of the present invention;

[0044] Fig.11 For along Fig.10 A cross-sectional view of BB;

[0045] Fig.12 Schematic diagram of the hollow shaft and its connection structure;

[0046] Fig.13 It is a three-dimensional diagram of the material guide assembly of the present invention;

[0047] Fig.14 It is a right side view of the material guide assembly of the present invention;

[0048] Fig.15 For along Fig.14 Cross-sectional view of CC.

[0049] The numbers in the figure represent:

[0050] 1. Dosing furnace body 2. Die casting machine receiving hopper 3. Material guide assembly 31. Discharge straight pipe 32. First hinge seat 33. First cylinder 34. Second hinge seat 35. Third hinge seat 36. U-shaped material guide trough 37. Box-type heating equipment 4. Exhaust assembly 41. Outer cover 42. Inlet pipe 43. Hollow shaft 44. Stirring blade 45. Oblique air outlet 46. Transmission assembly 47. First motor 48. Conical block 5. Self-slag discharge feeding assembly Part 51. Sealing cover 52. Second motor 53. Fourth hinged seat 54. Fifth hinged seat 55. Second cylinder 56. First side support seat 57. Oblique discharge pipe 58. Barrel 59. Gear ring 510. Straight shaft 511. Arc scraper 512. Rotating shaft 513. Valve plate 514. Conical filter bucket 515. Support ring 516. Gear plate 517. Straight rod 518. Second side support seat 519. Third cylinder 520. Straight pipe. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The present invention will be further described below in conjunction with the embodiments.

[0053] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view. Example 1

[0054] Please refer to the instruction manual Figure 1-15 , a quantitative furnace for convenient slag discharge, comprising a quantitative furnace body 1:

[0055] The feed inlet of the quantitative furnace body 1 is connected with a self-slag-discharging feed component 5 for feeding liquid and filtering and discharging slag;

[0056] The self-discharging slag-type feeding assembly 5 comprises a self-sealing feeding assembly, a filtering assembly, a scraping assembly and a slag-discharging assembly. The self-sealing feeding assembly for feeding and for the top self-sealing cover is fixedly installed at the feeding port of the quantitative furnace body 1. The self-sealing feeding assembly is connected with a filtering assembly for solid-liquid separation, and the inner wall of the filtering assembly is fitted and slidably connected with the scraping assembly for scraping the filter residue on the inner wall of the filtering assembly. The scraping assembly is installed on the self-sealing feeding assembly. The self-sealing feeding assembly is connected with the slag-discharging assembly for discharging the filter residue in the filtering assembly, and the feeding end of the slag-discharging assembly is plugged with the discharging end of the filtering assembly;

[0057] An exhaust assembly 4 for degassing is provided on the front side of the self-sealing cap feeding assembly;

[0058] The exhaust assembly 4 includes a sealed air intake assembly, a stirring assembly and an air outlet assembly. The sealed air intake assembly for inert gas intake and completely covering the stirring assembly is fixedly installed on the top of the quantitative furnace body 1, and the sealed air intake assembly is located at the front side of the self-sealing cover feeding assembly. The stirring assembly for driving the flow of molten metal is installed on the top of the quantitative furnace body 1. The driving end of the stirring assembly is installed in the sealed air intake assembly. The stirring end of the stirring assembly is located in the quantitative furnace body 1, and the stirring assembly is communicated with the sealed air intake assembly. The bottom of the stirring end of the stirring assembly is connected to an air outlet assembly for uniform exhaust of inert gas.

[0059] The discharging end of the quantitative furnace body 1 is connected with a material guide component 3 for discharging position adjustment and discharging heat preservation. When discharging, the discharging end of the material guide component 3 is inserted into the die-casting machine receiving hopper 2. When not discharging, the discharging end of the material guide component 3 is located above the die-casting machine receiving hopper 2.

[0060] The die-casting machine receiving hopper 2 is fixedly installed in the pipeline of the die-casting machine, and the injection hammer head slides in the pipeline of the die-casting machine. When discharging materials, the discharging end of the material guide component 3 is inserted into the die-casting machine receiving hopper 2, and the bottom of the discharging end of the material guide component 3 is lower than the top of the injection hammer head of the pipeline of the die-casting machine;

[0061] The inert gas is argon or nitrogen; the inlet end of the sealed inlet assembly is connected to an argon source or a nitrogen source.

[0062] The top of the self-sealing feed component of the self-discharging slag feeding component 5 is opened, and the molten metal is added into the self-sealing feed component, filtered through the filter component, and the filter residue is left in the filter component. The molten metal enters the quantitative furnace body 1 through the self-sealing feed component, and then the self-sealing cover on the top of the self-sealing feed component is processed. When slag discharge is required, the scraping component rotates on the inner wall of the filter component. At the same time, the slag discharge component is opened, and the filter residue enters the slag discharge component by its own gravity and is automatically discharged. No additional processing is required, which is conducive to the pure metal liquid entering the quantitative furnace body 1 and is conducive to actual use. At the same time, the scraping component is convenient for the filtered slag to be discharged. The scraping of the filter residue on the inner wall of the filter component is conducive to the movement of the filter residue to the slag discharge component, and avoids the clogging of the filter component, thus ensuring the filtering performance of the filter component; the stirring component is stirred, and the inert gas enters the sealed air inlet component, and then is discharged from the air outlet component through the stirring component. The inert gas introduced is broken into a large number of diffuse bubbles, which are dispersed in the molten metal and slowly float up in a spiral. The bubbles absorb hydrogen and oxidized slag in the molten metal by the gas pressure difference and surface adsorption principle, and are brought out to the surface of the molten metal as the bubbles rise, thereby purifying the molten metal and improving the purity of the molten metal. The high-speed inert gas Flowing in the sealed air intake component can take away the heat generated by the driving end of the stirring component, cool it down, reduce the impact of high temperature on the driving end of the stirring component, and help extend the service life of the driving end of the stirring component. In addition, the sealed air intake component completely covers the stirring component to prevent the gas in the quantitative furnace body 1 from being discharged from the connection between the stirring component and the quantitative furnace body 1, thereby ensuring the temperature stability and air pressure stability as much as possible; when discharging, the discharging end of the material guide component 3 is inserted into the die-casting machine receiving hopper 2, and the height of the molten metal in the die-casting machine receiving hopper 2 increases with the increase of the added amount. When the material guide component 3 continues to discharge liquid, the molten metal at the discharge end of the material guide component 3 directly contacts the molten metal in the die-casting machine receiving hopper 2. The molten metal in the die-casting machine receiving hopper 2 buffers the molten metal flowing at the discharge end of the material guide component 3, reduces the rotational power of the molten metal at the discharge end of the material guide component 3, and reduces the eddy current of the molten metal at the discharge end of the material guide component 3. After the eddy current of the molten metal at the discharge end of the material guide component 3 is reduced, the amount of gas involved in the eddy current can be reduced, thereby ensuring the improvement of the purity of the molten metal. When not discharging material, the discharge end of the material guide component 3 is located above the die-casting machine receiving hopper 2, which can prevent the material guide component 3 from affecting the movement of the subsequent injection hammer head.

[0063] Please refer to the instruction manual Figure 4-8The self-sealing feeding assembly includes a sealing cover 51, a fourth hinged seat 53, a fifth hinged seat 54, a second cylinder 55, a first side support seat 56 and a barrel 58. The barrel 58 is fixedly connected to the feeding port of the quantitative furnace body 1 at the rear side of the right end, and the first side support seat 56 is fixedly connected to the left wall of the barrel 58. The top of the inclined part of the first side support seat 56 is rotatably connected to the outer wall of the cylinder body of the second cylinder 55. The driving end of the second cylinder 55 is rotatably connected to the fourth hinged seat 53. The bottom of the fourth hinged seat 53 is fixedly connected to the sealing cover 51, and the bottom of the sealing cover 51 is in close contact with the top of the barrel 58. The left end of the sealing cover 51 is fixedly connected to the fifth hinged seat 54. The fifth hinged seat 54 is fixedly connected to the top of the upright part of the first side support seat 56. The top of the sealing cover 51 is connected to the scraping assembly.

[0064] The bottom of the sealing cover 51 is clamped with a sealing ring that is in sealing contact with the top of the barrel 58;

[0065] The filter assembly includes a conical filter bucket 514 and a support ring 515. The support ring 515 is fixedly mounted on the inner wall of the barrel 58. The top of the outer wall of the conical filter bucket 514 is in close contact with the support ring 515. The inner wall of the conical filter bucket 514 is in close contact and sliding connection with the scraping assembly. The lower end of the conical filter bucket 514 is in close contact and plugged with the inner wall of the upper end of the slag discharge assembly.

[0066] The top of the outer wall of the conical filter bucket 514 is in close contact with the support ring 515, so that the conical filter bucket 514 can be easily taken out from the support ring 515 and the conical filter bucket 514 can be easily replaced;

[0067] The conical filter bucket 514 has an inclination angle of thirty to sixty degrees.

[0068] The outer edge of the top of the conical filter hopper 514 is in close contact with the inner wall of the barrel 58;

[0069] The scraper assembly includes a second motor 52, a straight shaft 510 and an arc scraper 511. The second motor 52 is fixedly mounted on the top of the sealing cover 51. The driving end of the second motor 52 is connected to the straight shaft 510. The bottom of the straight shaft 510 is connected to the arc scraper 511 at equal intervals along the circumferential direction. The outer wall of the arc scraper 511 is in close contact and sliding connection with the inner wall of the conical filter bucket 514.

[0070] The slag discharge assembly includes an oblique discharge pipe 57, a gear ring 59, a rotating shaft 512, a valve plate 513, a gear plate 516, a straight rod 517, a second side support seat 518, a third cylinder 519 and a straight pipe 520. The lower end of the side wall of the barrel 58 is connected to the oblique discharge pipe 57, the top of the oblique discharge pipe 57 is fixedly connected to the bottom of the straight pipe 520, the inner wall of the upper end of the straight pipe 520 is plugged into the outer wall of the lower end of the conical filter bucket 514, the straight pipe 520 is rotatably connected to the rotating shaft 512 through a bearing, and the inner and outer ends of the rotating shaft 512 are fixedly connected. There are valve plates 513 and gear rings 59, and the outer wall of the valve plate 513 is fitted and slidably connected to the inner wall of the straight tube 520, and the valve plate 513 is located below the conical filter bucket 514, the second side support seat 518 is fixedly installed on the outer wall of the barrel 58, the bottom of the second side support seat 518 is fixedly connected to the third cylinder 519 and the straight rod 517, and the driving end of the third cylinder 519 is fixedly connected to the gear plate 516, and the gear plate 516 is fitted and slidably connected to the straight rod 517 through a sliding hole, and the gear plate 516 is meshed and connected to the gear ring 59;

[0071] The barrel 58 is rotatably connected to the rotating shaft 512 via a sealed bearing;

[0072] When adding liquid, the third cylinder 519 of the slag discharge assembly drives the tooth plate 516 to move upward along the straight rod 517, the tooth plate 516 drives the gear ring 59 to rotate, the gear ring 59 drives the rotating shaft 512 to rotate, the rotating shaft 512 drives the valve plate 513 to rotate to a horizontal state in the straight pipe 520, the valve plate 513 blocks the straight pipe 520, and the telescopic end of the second cylinder 55 of the self-sealing feed assembly of the self-slag discharge feed assembly 5 is recovered, the second cylinder 55 drives the fourth articulated seat 53 to move, and under the action of the fifth articulated seat 54, the fourth articulated seat 53 drives the sealing cover 51 along the fifth articulated seat 5 4 is rotated to open the top of the barrel 58, and the molten metal is added into the barrel 58 of the self-sealing cover feeding assembly, and the conical filter bucket 514 of the filter assembly is filtered, and the filter residue is left in the conical filter bucket 514 of the filter assembly, and the molten metal enters the quantitative furnace body 1 through the barrel 58 of the self-sealing cover feeding assembly, and then the second cylinder 55 of the self-sealing cover feeding assembly extends, and the second cylinder 55 drives the fourth hinge seat 53 to move, and under the action of the fifth hinge seat 54, the fourth hinge seat 53 drives the sealing cover 51 to rotate along the fifth hinge seat 54, and the sealing cover 51 rotates until it is close to the top of the barrel 58. The top of the barrel 58 is self-sealed. When slag discharge is required, the second motor 52 of the scraper assembly drives the straight shaft 510 to rotate, and the straight shaft 510 drives the arc scraper 511 to rotate. The arc scraper 511 rotates on the inner wall of the conical filter bucket 514 of the filter assembly. At the same time, the third cylinder 519 of the slag discharge assembly drives the tooth plate 516 to move downward along the straight rod 517, and the tooth plate 516 drives the gear ring 59 to rotate, and the gear ring 59 drives the rotating shaft 512 to rotate, and the rotating shaft 512 drives the valve plate 513 to rotate to a vertical state in the straight pipe 520, and the straight pipe 520 is opened, and the arc scraper 511 scrapes the filter residue in the conical filter bucket 514, and the filter residue enters the straight pipe 520 of the slag discharge component through its own gravity, and then is discharged from the inclined discharge pipe 57. The filter residue is automatically discharged without additional processing, which is beneficial for the pure metal molten metal to enter the quantitative furnace body 1 and is beneficial for practical use. At the same time, the arc scraper 511 of the scraper component facilitates the scraping of the filter residue on the inner wall of the conical filter bucket 514 of the filter component, which is beneficial for the filter residue to move to the straight pipe 520 of the slag discharge component and avoids the conical filter bucket 514 of the filter component from being blocked, thereby ensuring the filtering performance of the conical filter bucket 514 of the filter component.

[0073] Please refer to the instruction manual Figure 9-12 The sealed air intake assembly includes an outer cover 41 and an air intake pipe 42. The outer cover 41 is fixedly mounted on the top of the quantitative furnace body 1. The outer cover 41 is located in front of the barrel 58 of the self-sealing cap feeding assembly. The top of the outer cover 41 is fixedly connected with the air intake pipe 42. The driving end of the stirring assembly is located in the outer cover 41.

[0074] The air inlet pipe 42 is connected to an argon gas source or a nitrogen gas source;

[0075] The stirring assembly includes a hollow shaft 43, a stirring blade 44, a transmission assembly 46 and a first motor 47. The first motor 47 is fixedly installed on the top of the quantitative furnace body 1. The driving end of the first motor 47 is connected to the hollow shaft 43 through the transmission assembly 46. The quantitative furnace body 1 is rotatably connected to the hollow shaft 43 through a bearing. The upper end of the hollow shaft 43, the transmission assembly 46 and the first motor 47 are all located in the outer cover 41. The lower end of the hollow shaft 43 penetrates the top of the quantitative furnace body 1 and is fixedly connected with stirring blades 44 at equal intervals along the circumferential direction. The gas outlet assembly is located at the lower end of the hollow shaft 43.

[0076] The transmission assembly 46 is selected from a synchronous belt assembly, a sprocket assembly or a gear assembly;

[0077] The first motor 47 is the driving end of the stirring assembly, and the hollow shaft 43, the transmission assembly 46 and the first motor 47 constitute the stirring end of the stirring assembly;

[0078] The gas outlet assembly includes an oblique gas outlet hole 45 and a conical block 48. The lower end of the hollow shaft 43 is provided with oblique gas outlet holes 45 at equal intervals along the circumferential direction, and the oblique gas outlet holes 45 and the stirring blades 44 are staggered for discharge. The bottom of the hollow shaft 43 is threadedly connected with a conical block 48, and the top of the conical block 48 is in a conical state.

[0079] The inclination angle of the oblique air outlet 45 is thirty to forty-five degrees;

[0080] The bottom of the air inlet end of the oblique air outlet 45 is flush with the bottom of the conical portion of the conical block 48;

[0081] The first motor 47 of the stirring assembly drives the transmission assembly 46 to rotate, the transmission assembly 46 drives the hollow shaft 43 to rotate, the hollow shaft 43 drives the stirring blade 44 to rotate, the stirring blade 44 rotates to stir, the inert gas enters the outer cover 41 of the sealed air inlet assembly through the air inlet pipe 42, and then is discharged from the oblique air outlet 45 of the air outlet assembly through the hollow shaft 43 of the stirring assembly, the stirring blade 44 breaks the inert gas introduced into the oblique air outlet 45 into a large number of diffuse bubbles, disperses them in the molten metal and slowly floats up in a spiral, the bubbles absorb hydrogen and oxidized slag in the molten metal by the gas pressure difference and surface adsorption principle, and are brought out to the surface of the molten metal as the bubbles rise, so as to achieve metal Liquid purification can improve the purity of the molten metal, and the high-speed inert gas flows in the outer cover 41 of the sealed air inlet component, which can take away the heat generated by the first motor 47 of the stirring component, cool the first motor 47, and reduce the impact of high temperature on the first motor 47 of the stirring component, which is beneficial to extending the service life of the first motor 47 of the stirring component. In addition, the outer cover 41 of the sealed air inlet component completely covers the stirring component to prevent the gas in the quantitative furnace body 1 from being discharged from the connection between the stirring component and the quantitative furnace body 1, thereby ensuring the temperature stability and air pressure stability as much as possible; finally, due to the inclined setting of the oblique air outlet 45 and the conical state of the top of the conical block 48, the molten metal is prevented from remaining in the hollow shaft 43.

[0082] Please refer to the instruction manual Figure 13-15 The material guiding component 3 includes a discharging component, an adjusting component and a box-type heating device 37. The adjusting component for adjusting the position of the discharging component is connected to the box-type heating device 37 for heat preservation of the discharging component. The inner wall of the box-type heating device 37 is connected to the discharging component for discharging;

[0083] The adjustment assembly includes a first articulated seat 32, a second articulated seat 34 and a third articulated seat 35. The third articulated seat 35 and the second articulated seat 34 are fixedly mounted on the side wall of the quantitative furnace body 1. The third articulated seat 35 is located above the second articulated seat 34. The cylinder body of the first cylinder 33 is fixedly connected to the second articulated seat 34. The driving end of the first cylinder 33 is fixedly connected to the first articulated seat 32. The first articulated seat 32 and the third articulated seat 35 are fixedly connected to the box-type heating device 37.

[0084] The discharge assembly includes a discharge straight pipe 31 and a U-shaped guide trough 36. The U-shaped guide trough 36 is fixedly installed on the inner wall of the box-type heating device 37. The discharge end of the U-shaped guide trough 36 is fixedly connected to the discharge straight pipe 31. The U-shaped guide trough 36 is located at the discharge port of the quantitative furnace body 1.

[0085] The box-type heating device 37 is an electric heating device, and the temperature of the box-type heating device 37 is controlled to be 100-120 degrees Celsius;

[0086] During discharge, the telescopic end of the first cylinder 33 of the adjusting assembly of the material guiding assembly 3 is recovered, the first cylinder 33 drives the first hinge seat 32 to move, the first hinge seat 32 drives the box-type heating device 37 to rotate along the third hinge seat 35, the box-type heating device 37 drives the discharge end of the discharge straight pipe 31 to be inserted into the die-casting machine receiving hopper 2, the molten metal in the quantitative furnace body 1 enters the U-shaped material guiding groove 36 through the discharge port, and then enters the die-casting machine receiving hopper 2 from the discharge straight pipe 31, the molten metal in the die-casting machine receiving hopper 2 increases with the increase of the added amount, the molten metal height in the die-casting machine receiving hopper 2 increases, when the material guiding assembly 3 continues to discharge, the molten metal at the discharge end of the discharge straight pipe 31 directly contacts with the molten metal in the die-casting machine receiving hopper 2, and the molten metal in the die-casting machine receiving hopper 2 The molten metal flowing at the discharge end of the discharge straight pipe 31 is buffered to reduce the rotational power of the molten metal at the discharge end of the discharge straight pipe 31, and the eddy current of the molten metal at the discharge end of the discharge straight pipe 31 is reduced. After the eddy current of the molten metal at the discharge end of the discharge straight pipe 31 is reduced, the amount of gas drawn in by the eddy current can be reduced, thereby ensuring the improvement of the purity of the molten metal. When there is no discharge, the discharge end of the discharge straight pipe 31 is located above the die-casting machine receiving hopper 2, which can prevent the discharge straight pipe 31 from affecting the subsequent movement of the injection hammer head. The box-type heating equipment 37 performs insulation treatment on the U-shaped guide groove 36, so that the temperature of the molten metal in the U-shaped guide groove 36 is reduced less. After the temperature limit entering the die-casting machine, the insulation temperature requirement of the quantitative furnace body 1 is low, which reduces the insulation energy consumption of the quantitative furnace body 1, which is beneficial to energy saving and environmental protection.

[0087] The temperature of the molten metal entering the die-casting machine is 630-730°C. When the box-type heating device 37 is not set, the temperature of the molten metal decreases by 10°C after passing through the U-shaped guide groove 36, and the insulation temperature of the quantitative furnace body 1 is 640-740°C. When the box-type heating device 37 is set, the temperature of the molten metal decreases by 4°C after passing through the U-shaped guide groove 36, and the insulation temperature of the quantitative furnace body 1 is 634-734°C. After the box-type heating device 37 is set, the insulation temperature requirement of the quantitative furnace body 1 is low, which reduces the insulation energy consumption of the quantitative furnace body 1, which is beneficial to energy saving and environmental protection. Example 2

[0088] like Figure 1-15 As shown, as a preferred embodiment of the present invention, in order to better achieve the purpose of the present invention, the present invention also provides a method for using a quantitative furnace that facilitates slag discharge, comprising the following steps:

[0089] Step 1: When adding liquid, the third cylinder 519 of the slag discharge assembly drives the tooth plate 516 to move upward along the straight rod 517, the tooth plate 516 drives the gear ring 59 to rotate, the gear ring 59 drives the rotating shaft 512 to rotate, the rotating shaft 512 drives the valve plate 513 to rotate to a horizontal state in the straight pipe 520, the valve plate 513 blocks the straight pipe 520, and the telescopic end of the second cylinder 55 of the self-sealing feed assembly of the self-slag discharge feed assembly 5 is recovered, and the second cylinder 55 drives the fourth hinged seat 53 to move. Under the action of the fifth hinge seat 54, the fourth hinge seat 53 drives the sealing cover 51 to rotate along the fifth hinge seat 54, opening the top of the barrel 58, and the molten metal is added into the barrel 58 of the self-sealing cover feeding assembly, and the conical filter bucket 514 of the filtering assembly is filtered, and the filter residue is left in the conical filter bucket 514 of the filtering assembly, and the molten metal enters the quantitative furnace body 1 through the barrel 58 of the self-sealing cover feeding assembly, and then the second cylinder 55 of the self-sealing cover feeding assembly extends, and the second cylinder 55 with The fourth hinge seat 53 is driven to move, and under the action of the fifth hinge seat 54, the fourth hinge seat 53 drives the sealing cover 51 to rotate along the fifth hinge seat 54, and the sealing cover 51 rotates until it is in contact with the top of the barrel 58, and the top of the barrel 58 is self-sealed. Then, the second motor 52 of the scraper assembly drives the straight shaft 510 to rotate, and the straight shaft 510 drives the arc scraper 511 to rotate. The arc scraper 511 rotates on the inner wall of the conical filter bucket 514 of the filter assembly, and at the same time, the third scraper assembly is The cylinder 519 drives the tooth plate 516 to move downward along the straight rod 517, the tooth plate 516 drives the gear ring 59 to rotate, the gear ring 59 drives the rotating shaft 512 to rotate, the rotating shaft 512 drives the valve plate 513 to rotate to a vertical state in the straight pipe 520, the straight pipe 520 is opened, the arc scraper 511 scrapes the filter residue in the conical filter bucket 514, the filter residue enters the straight pipe 520 of the slag discharge assembly by its own gravity, and then is discharged from the oblique discharge pipe 57, and then the quantitative furnace body 1 is subjected to heat preservation treatment;

[0090] Step 2: The first motor 47 of the stirring assembly drives the transmission assembly 46 to rotate, the transmission assembly 46 drives the hollow shaft 43 to rotate, the hollow shaft 43 drives the stirring blade 44 to rotate, the stirring blade 44 rotates to stir, and the inert gas enters the outer cover 41 of the sealed air inlet assembly through the air inlet pipe 42, and then passes through the hollow shaft 43 of the stirring assembly and is discharged from the oblique air outlet 45 of the air outlet assembly;

[0091] Step three: After exhausting, the telescopic end of the adjusting component of the material guiding component 3 is recovered, and the adjusting component drives the discharging end of the discharging component to be inserted into the receiving hopper 2 of the die-casting machine. The molten metal in the quantitative furnace body 1 enters the discharging component through the discharging port, and then enters the receiving hopper 2 of the die-casting machine from the discharging component.

[0092] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quantitative furnace for convenient slag discharge, comprising a quantitative furnace body (1), characterized in that: A self-slag-discharging feeding component (5) for feeding liquid and filtering and discharging slag is connected to the feeding port of the quantitative furnace body (1); The self-discharging slag-type feeding assembly (5) comprises a self-sealing feeding assembly, a filtering assembly, a slag-scraping assembly and a slag-discharging assembly. The self-sealing feeding assembly for feeding and for the top self-sealing cover is fixedly installed at the feeding port of the quantitative furnace body (1). The self-sealing feeding assembly is connected with a filtering assembly for solid-liquid separation, and the inner wall of the filtering assembly is slidably connected with the slag-scraping assembly for scraping the filter residue on the inner wall of the filtering assembly. The slag-scraping assembly is installed on the self-sealing feeding assembly. The self-sealing feeding assembly is connected with the slag-discharging assembly for discharging the filter residue in the filtering assembly. The feeding end of the slag-discharging assembly is plugged into the discharge end of the filtering assembly. An exhaust assembly (4) for degassing is provided on the front side of the self-sealing cover feeding assembly; The exhaust assembly (4) comprises a sealed air intake assembly, a stirring assembly and an air outlet assembly, wherein the sealed air intake assembly for inert gas intake and for completely covering the stirring assembly is fixedly mounted on the top of the quantitative furnace body (1), and the sealed air intake assembly is located at the front side of the self-sealing cover feeding assembly, the stirring assembly for driving the metal liquid to flow is mounted on the top of the quantitative furnace body (1), the driving end of the stirring assembly is mounted in the sealed air intake assembly, the stirring end of the stirring assembly is located in the quantitative furnace body (1), and the stirring assembly is in communication with the sealed air intake assembly, and the bottom of the stirring end of the stirring assembly is connected to an air outlet assembly for uniformly exhausting the inert gas; The discharge end of the quantitative furnace body (1) is connected to a material guide assembly (3) for adjusting the discharge position and keeping the discharge warm. When discharging, the discharge end of the material guide assembly (3) is inserted into the die-casting machine receiving hopper (2). When not discharging, the discharge end of the material guide assembly (3) is located above the die-casting machine receiving hopper (2). The self-sealing cover feeding assembly comprises a sealing cover (51), a fourth hinged seat (53), a fifth hinged seat (54), a second cylinder (55), a first side support seat (56) and a barrel (58); the barrel (58) is fixedly connected to the feeding port at the rear right end of the quantitative furnace body (1); the first side support seat (56) is fixedly connected to the left wall of the barrel (58); the top of the inclined portion of the first side support seat (56) is rotatably connected to the outer wall of the cylinder body of the second cylinder (55); the driving end of the second cylinder (55) is rotatably connected to the fourth hinged seat (53); the bottom of the fourth hinged seat (53) is fixedly connected to the sealing cover (51), and the bottom of the sealing cover (51) is in close contact with the top of the barrel (58); the left end of the sealing cover (51) is fixedly connected to the fifth hinged seat (54); the fifth hinged seat (54) is fixedly connected to the top of the upright portion of the first side support seat (56); and the top of the sealing cover (51) is connected to the scraping assembly; The filter assembly comprises a conical filter bucket (514) and a support ring (515), wherein the support ring (515) is fixedly mounted on the inner wall of the barrel (58), the top of the outer wall of the conical filter bucket (514) is in close contact with the support ring (515), the inner wall of the conical filter bucket (514) is in close contact and sliding connection with the scraping assembly, and the lower end of the conical filter bucket (514) is in close contact and plugged with the inner wall of the upper end of the slag discharge assembly; The conical filter bucket (514) has an inclination angle of thirty to sixty degrees; The material guiding component (3) comprises a material discharging component, an adjusting component and a box-type heating device (37); the adjusting component for adjusting the position of the material discharging component is connected to the box-type heating device (37) for heat preservation of the material discharging component; and the inner wall of the box-type heating device (37) is connected to the material discharging component for discharging material.

2. The quantitative furnace for convenient slag discharge according to claim 1, characterized in that: The scraper assembly comprises a second motor (52), a straight shaft (510) and an arc-shaped scraper (511); the second motor (52) is fixedly mounted on the top of the sealing cover (51); the driving end of the second motor (52) is connected to the straight shaft (510); the bottom of the straight shaft (510) is connected to the arc-shaped scraper (511) at equal intervals along the circumferential direction; and the outer wall of the arc-shaped scraper (511) is slidably connected to the inner wall of the conical filter bucket (514).

3. The quantitative furnace for convenient slag discharge according to claim 2, characterized in that: The slag discharge assembly comprises an oblique discharge pipe (57), a gear ring (59), a rotating shaft (512), a valve plate (513), a gear plate (516), a straight rod (517), a second side support seat (518), a third cylinder (519) and a straight pipe (520). The lower end of the side wall of the barrel (58) is connected with the oblique discharge pipe (57). The top of the oblique discharge pipe (57) is fixedly connected to the bottom of the straight pipe (520). The inner wall of the upper end of the straight pipe (520) is plugged into the outer wall of the lower end of the conical filter bucket (514). The straight pipe (520) is rotatably connected to the rotating shaft (512) via a bearing. The inner and outer ends of the rotating shaft (512) are fixedly connected to the rotating shaft (512). A valve plate (513) and a gear ring (59) are connected, and the outer wall of the valve plate (513) is fitted and slidably connected to the inner wall of the straight tube (520), and the valve plate (513) is located below the conical filter bucket (514). The second side support seat (518) is fixedly installed on the outer wall of the barrel (58), and the bottom of the second side support seat (518) is fixedly connected to a third cylinder (519) and a straight rod (517), and the driving end of the third cylinder (519) is fixedly connected to a gear plate (516), and the gear plate (516) is fitted and slidably connected to the straight rod (517) through a sliding hole, and the gear plate (516) is meshingly connected to the gear ring (59).

4. The quantitative furnace for convenient slag discharge according to claim 3, characterized in that: The sealed air intake assembly comprises an outer cover (41) and an air intake pipe (42); the outer cover (41) is fixedly mounted on the top of the quantitative furnace body (1); the outer cover (41) is located at the front side of the barrel (58) of the self-sealing cap feeding assembly; the top of the outer cover (41) is fixedly connected to the air intake pipe (42); and the driving end of the stirring assembly is located inside the outer cover (41).

5. The quantitative furnace for convenient slag discharge according to claim 4, characterized in that: The stirring assembly comprises a hollow shaft (43), stirring blades (44), a transmission assembly (46) and a first motor (47); the first motor (47) is fixedly mounted on the top of the quantitative furnace body (1); a driving end of the first motor (47) is connected to the hollow shaft (43) via the transmission assembly (46); the quantitative furnace body (1) is rotatably connected to the hollow shaft (43) via a bearing; the upper end of the hollow shaft (43), the transmission assembly (46) and the first motor (47) are all located in the outer cover (41); the lower end of the hollow shaft (43) passes through the top of the quantitative furnace body (1) and is fixedly connected to stirring blades (44) at equal intervals along the circumferential direction; and the gas outlet assembly is located at the lower end of the hollow shaft (43).

6. The quantitative furnace for convenient slag discharge according to claim 5, characterized in that: The air outlet assembly comprises oblique air outlet holes (45) and a conical block (48); the lower end of the hollow shaft (43) is provided with oblique air outlet holes (45) at equal intervals along the circumferential direction, and the oblique air outlet holes (45) and the stirring blades (44) are staggered for discharge; the bottom of the hollow shaft (43) is threadedly connected with the conical block (48), and the top of the conical block (48) is in a conical state.

7. A method for using the quantitative furnace for convenient slag discharge as claimed in claim 6, characterized in that: The following steps are involved: Step 1: When adding liquid, the third cylinder (519) of the slag discharge assembly drives the tooth plate (516) to move upward along the straight rod (517), the tooth plate (516) drives the gear ring (59) to rotate, the gear ring (59) drives the rotating shaft (512) to rotate, the rotating shaft (512) drives the valve plate (513) to rotate in the straight pipe (520) to a horizontal state, the valve plate (513) blocks the straight pipe (520), the telescopic end of the second cylinder (55) of the self-sealing feed assembly of the self-slag discharge feed assembly (5) is recovered, and the second cylinder (55) drives the fourth hinge seat (53) The fourth hinge seat (53) moves, and under the action of the fifth hinge seat (54), the fourth hinge seat (53) drives the sealing cover (51) to rotate along the fifth hinge seat (54), opening the top of the barrel (58), and the molten metal is added into the barrel (58) of the self-sealing cover feeding assembly, and the conical filter bucket (514) of the filter assembly is filtered, and the filter residue is left in the conical filter bucket (514) of the filter assembly. The molten metal enters the quantitative furnace body (1) through the barrel (58) of the self-sealing cover feeding assembly, and then the second cylinder (55) of the self-sealing cover feeding assembly extends, and the second cylinder (55) drives the first cylinder (55) to move. The fourth hinged seat (53) moves, and under the action of the fifth hinged seat (54), the fourth hinged seat (53) drives the sealing cover (51) to rotate along the fifth hinged seat (54), and the sealing cover (51) rotates until it is in contact with the top of the barrel (58), and the top of the barrel (58) is self-sealed. Then, the second motor (52) of the scraper assembly drives the straight shaft (510) to rotate, and the straight shaft (510) drives the arc scraper (511) to rotate. The arc scraper (511) rotates on the inner wall of the conical filter bucket (514) of the filter assembly. At the same time, the third cylinder (514) of the slag discharge assembly is driven to rotate. The tooth plate (516) is driven by the straight rod (519) to move downward along the straight rod (517), the tooth plate (516) drives the gear ring (59) to rotate, the gear ring (59) drives the rotating shaft (512) to rotate, the rotating shaft (512) drives the valve plate (513) to rotate to a vertical state in the straight pipe (520), the straight pipe (520) is opened, the arc-shaped scraper (511) scrapes the filter residue in the conical filter bucket (514), the filter residue enters the straight pipe (520) of the slag discharge assembly by its own gravity, and is then discharged from the inclined discharge pipe (57), and then the quantitative furnace body (1) is subjected to heat preservation treatment; Step 2: The first motor (47) of the stirring assembly drives the transmission assembly (46) to rotate, the transmission assembly (46) drives the hollow shaft (43) to rotate, the hollow shaft (43) drives the stirring blade (44) to rotate, the stirring blade (44) rotates to stir, and the inert gas enters the outer cover (41) of the sealed air inlet assembly through the air inlet pipe (42), and then passes through the hollow shaft (43) of the stirring assembly and is discharged from the oblique air outlet (45) of the air outlet assembly; Step 3: After exhaust, the telescopic end of the adjusting component of the material guide component (3) is recovered, and the adjusting component drives the discharging end of the discharging component to be inserted into the receiving hopper (2) of the die-casting machine. The molten metal in the quantitative furnace body (1) enters the discharging component through the discharging port, and then enters the receiving hopper (2) of the die-casting machine from the discharging component.

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