CN114562878A

CN114562878A - Automatic metal smelting equipment and smelting process thereof

Info

Publication number: CN114562878A
Application number: CN202210188609.0A
Authority: CN
Inventors: 金竹林; 雷涛; 刘玉龙; 雒倩文
Original assignee: Luonan Huanyayuan Copper Co ltd
Current assignee: Luonan Huanyayuan Copper Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-05-31

Abstract

The application relates to automatic metal smelting equipment and a smelting process thereof, and relates to the field of metal smelting, wherein the equipment comprises a melting furnace, a furnace cover is detachably connected to the melting furnace, a material spraying port is formed in the furnace cover, and a measuring scale is connected below the melting furnace; a spray gun is arranged above the melting furnace and comprises an inner rotary drum and an outer rotary drum, a driving assembly for driving the inner rotary drum to rotate relative to the outer rotary drum is connected onto the inner rotary drum, and the inner rotary drum and the outer rotary drum rotate relative to each other and are used for adjusting the amount of the sprayed reducing gas. This application has the staff and judges the volume that needs to spout into the reducing gas in the melting furnace according to the metal weight in the melting furnace to accomplish accurate accuse volume, avoid producing the waste of reducing gas, avoid appearing the effect that the metal purity that the reduction obtained crosses lowly simultaneously.

Description

Automatic metal smelting equipment and smelting process thereof

Technical Field

The application relates to the field of metal smelting, in particular to automatic metal smelting equipment and a smelting process thereof.

Background

Metal smelting aims at changing metal into metal by the principle that carbon, carbon monoxide, hydrogen and the like are used and the metal with stronger reducibility is reduced from a combined mineral to obtain the metal.

In the related art, a metal smelting device is disclosed, which comprises a smelting furnace, a spray gun and an exhaust pipe, wherein the smelting furnace is used for containing metal ores to be smelted, the spray gun is generally positioned right above the smelting furnace, the spray gun is used for spraying fuel and reducing gas into the smelting furnace, the exhaust pipe is communicated with the smelting furnace, and the exhaust pipe is used for exhausting harmful gas exhausted when the metal ores are smelted; when carrying out metal smelting, the spray gun sprays fuel and reducing gas in to the smelting pot, and the fuel melts the metal ore gradually, and the metal ore is at the molten in-process, and the metal simple substance is come out by reducing gas reduction, obtains the metal simple substance, and simultaneously, exhaust harmful gas is discharged along the blast pipe to be collected.

As described above, the inventors have considered that the amount of the metal ore in the melting furnace and the amount of the reducing gas discharged from the lance are difficult to control in the above-described process of smelting the metal ore, and thus there is a possibility that the purity of the metal substance obtained by reduction is too low or the reducing gas is wasted.

Disclosure of Invention

In order to improve the control precision of the quantity of metal ores in a smelting furnace and the quantity of reducing gas sprayed by a spray gun, the application provides automatic metal smelting equipment and a smelting process thereof.

In a first aspect, the application provides an automatic metal smelting device, which adopts the following technical scheme:

an automatic metal smelting device comprises a melting furnace, wherein a furnace cover is detachably connected to the melting furnace, a spray opening is formed in the furnace cover, and a measuring scale is connected below the melting furnace; a spray gun is arranged above the melting furnace and comprises an inner rotary drum and an outer rotary drum, a driving assembly for driving the inner rotary drum to rotate relative to the outer rotary drum is connected onto the inner rotary drum, and the inner rotary drum and the outer rotary drum rotate relative to each other and are used for adjusting the amount of the sprayed reducing gas.

By adopting the technical scheme, the metering scale and the spray gun are matched for use, so that the metering scale firstly weighs the weight of the metal in the melting furnace, and a worker judges the amount of the reducing gas needing to be sprayed into the melting furnace according to the weight of the metal in the melting furnace, thereby accurately controlling the amount, avoiding the waste of the reducing gas and avoiding the phenomenon that the purity of the metal obtained by reduction is too low; interior rotary drum and the setting of outer rotary drum for drive assembly can real time control interior rotary drum and the relative rotation angle of outer rotary drum, thereby control spray gun blowout reducing gas's volume, accomplish the addition of real-time accurate control reducing gas, avoid producing reducing gas's waste, avoid appearing the phenomenon that the metal purity that the reduction obtained is crossed lowly simultaneously.

Optionally, a plurality of inner nozzles are formed in the bottom of the inner rotating cylinder, a plurality of outer nozzles are formed in the bottom of the outer rotating cylinder, and the number of the inner nozzles is the same as that of the outer nozzles, and the inner nozzles are equal in size.

By adopting the technical scheme, the inner spray holes and the outer spray holes are formed, so that when the inner spray holes are aligned with the outer spray holes, the reducing gas sprayed out of the inner spray holes can be completely sprayed out along the outer spray holes, when the driving assembly drives the inner rotary drum to rotate, the positions of the inner spray holes and the outer spray holes are staggered, the reducing gas sprayed out of the inner spray holes cannot be completely sprayed out along the outer spray holes, the spraying amount of the reducing gas is reduced, and the accurate control amount of the reducing gas is realized through the simple mechanical structure.

Optionally, the driving assembly includes a driving motor, a driving wheel and a driven wheel, the driving motor is fixedly connected to the outer rotary drum, a driving shaft of the driving motor is connected to the driving wheel, the driven wheel is sleeved outside the inner rotary drum and is fixedly connected to the inner rotary drum, and the driven wheel is engaged with the driving wheel.

Through adopting above-mentioned technical scheme, drive assembly's setting for driving motor's drive shaft rotates and drives the drive wheel and rotate, and the drive wheel rotates and drives from the driving wheel rotation, rotates from the driving wheel and drives interior rotary drum rotation, thereby orifice and the relative position of outer orifice in simple and convenient regulation.

Optionally, one side of the hole wall of the inner spray hole, which is close to the outer spray hole, is gradually gathered.

Through adopting above-mentioned technical scheme, the pore wall design of interior orifice for interior rotary drum is when rotating, and the slope inner wall of interior orifice can strike off the impurity of remaining between the adjacent outer orifice, avoids the impurity between the adjacent outer orifice to pile up too much, when adjusting the spray gun and spout reducing gas volume, cleans outer rotary drum.

Optionally, one side of the hole wall of the outer spray hole, which is far away from the inner spray hole, is gradually opened; the cross section area of the bottom of the outer rotating cylinder is smaller than that of the top of the outer rotating cylinder, and fuel holes are formed in the circumferential direction of the bottom wall of the outer rotating cylinder.

By adopting the technical scheme, the shape of the outer spray hole is designed, the direction of the gradual opening of the hole diameter of the inner spray hole is just opposite, so that the reducing gas sprayed out of the inner spray hole is sprayed out along the outer spray hole, and the reducing gas sprayed out along the outer spray hole is dispersed; because the cross section of the bottom of the outer rotary cylinder is smaller than that of the top of the outer rotary cylinder, the gas sprayed out of the fuel hole along the bottom of the outer rotary cylinder gathers towards the central axis of the outer rotary cylinder, and is just opposite to the spraying direction of the reducing gas, so that the reducing gas and the fuel are fully mixed and enter the melting furnace, and the melting effect on the metal ores is better.

Optionally, the spray gun is connected with a lifting assembly, the lifting assembly comprises a base cylinder, a lifting cylinder and a limiting strip, and the base cylinder is connected to the ground; the lifting cylinder is inserted into the base cylinder and is in sliding connection with the base cylinder; the lifting cylinder is positioned in the base barrel, and a piston rod of the lifting cylinder is fixedly connected with the bottom of the lifting barrel; a limiting groove is formed in the base barrel, and the limiting strip is fixedly connected with the lifting barrel and is connected with the base barrel in a sliding mode along the limiting groove.

Through adopting above-mentioned technical scheme, lifting unit's setting for after the lift cylinder starts, the lift cylinder can drive a lift section of thick bamboo and reciprocate, and spacing restriction lift section of thick bamboo reciprocates with the relative rotation of a base section of thick bamboo, and the lift section of thick bamboo drives the spray gun and reciprocates, and the spray gun of being convenient for is better to fusing in the stove blowout reducing gas and fuel.

Optionally, the base cylinder is connected with a rotating assembly, the rotating assembly comprises a rotating motor, a rotating driving wheel and a rotating driven wheel, and the rotating motor is used for driving the rotating driving wheel to rotate; the rotating driving wheel is meshed with the rotating driven wheel, and the rotating driven wheel is sleeved on the base cylinder and is fixedly connected with the base cylinder.

Through adopting above-mentioned technical scheme, the setting of runner assembly for rotate the motor and rotate and drive and rotate the action wheel and rotate, rotate the action wheel and drive and rotate the driven wheel and rotate, rotate the driven wheel and drive a base section of thick bamboo and rotate with a lift section of thick bamboo, indirectly drive the spray gun and rotate, make the adjusting position that the spray gun can be in good time, conveniently spray reducing gas and fuel in to melting the stove.

Optionally, a feeding assembly and an exhaust assembly are connected to the furnace cover, the feeding assembly includes a first feeding section and a second feeding section, the first feeding section is used for feeding in materials, one end of the second feeding section is communicated with the furnace cover, and the other end of the second feeding section is used for receiving materials discharged from the first feeding section; the exhaust assembly comprises a first exhaust section and a second exhaust section, the first exhaust section extends to the outside, one end of the second exhaust section is communicated with the furnace cover, and the other end of the second exhaust section is detachably connected with the second exhaust section.

Through adopting above-mentioned technical scheme, two sections designs of feeding subassembly and exhaust subassembly for when feeding subassembly and exhaust subassembly were out of work, can dismantle first exhaust section and second exhaust section, the dismantlement of the bell of being convenient for.

Optionally, the furnace cover is connected with a lifting assembly, the lifting assembly comprises a lifting rope, a lifting rod and a winch, one end of the lifting rope is connected with the furnace cover, and the other end of the lifting rope bypasses the lifting rod and is wound on the winch; the lifting rod is used for limiting the lifting rope and driving the lifting rope to move.

Through adopting above-mentioned technical scheme, the setting of hoisting component for after the metal smelting in the melting furnace, utilize hoisting component to mention the bell, then the melting furnace can be driven and rotate, and pour the metal liquid in the melting furnace.

In a second aspect, the present application provides a smelting process, which adopts the following technical scheme, including the following steps:

step I, lifting and transporting metal ores to a melting furnace by utilizing a lifting assembly;

step II, starting the lifting assembly and the rotating assembly, and driving the spray gun to move right above the melting furnace by the lifting assembly and the rotating assembly;

step III, starting the driving component and the metering scale, wherein the driving component drives the inner rotary drum to rotate, so that the amount of reducing gas sprayed out by the spray gun is adjusted according to the weighing of the metering scale, and the metal ore is melted in the melting furnace;

and step III, plugging the second feeding section, disassembling the first exhaust section and the second exhaust section, starting the lifting assembly, lifting the furnace cover by the lifting assembly, driving the melting furnace to turn over, and pouring out the molten metal in the melting furnace.

By adopting the technical scheme, the steps of smelting the metal are automatically completed by adopting mechanical equipment, and the amount of adding the reducing gas and the amount of the fuel can be accurately controlled by weighing the weight of the metal in the melting furnace, so that the metal smelting effect is good, and the efficiency is high.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the metering scale and the spray gun are matched for use, so that the metering scale is used for firstly weighing the weight of metal in the melting furnace, and a worker judges the amount of reducing gas needing to be sprayed into the melting furnace according to the weight of the metal in the melting furnace, so that the amount is accurately controlled, the waste of the reducing gas is avoided, and the phenomenon that the purity of the metal obtained by reduction is too low is avoided;

2. the inner spray holes and the outer spray holes are formed, so that when the inner spray holes are aligned with the outer spray holes, the reducing gas sprayed out of the inner spray holes can be sprayed out along the outer spray holes, the positions of the inner spray holes and the positions of the outer spray holes are staggered, the reducing gas sprayed out of the inner spray holes cannot be sprayed out along the outer spray holes, the spraying amount of the reducing gas is reduced, and the precise dosage of the reducing gas is realized through the simple mechanical structure;

3. the shape of the outer spray hole is designed to be opposite to the gradual opening direction of the aperture of the inner spray hole, so that sprayed reducing gas is scattered, the gas sprayed from the fuel hole at the bottom of the outer rotary cylinder gathers towards the central axis of the inner and outer rotary cylinders along the spraying direction of the gas, the spraying direction of the gas is opposite to that of the reducing gas, the reducing gas and the fuel are fully mixed and then enter the melting furnace, and the melting effect on the metal blocks is good.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic view aimed at showing the structure of a melting furnace, a scale, a feeding assembly and an exhaust assembly;

FIG. 3 is a schematic diagram of a lifting assembly, a rotating assembly and a lifting assembly;

FIG. 4 is a schematic cross-sectional view intended to show a lifting assembly;

FIG. 5 is a schematic view intended to show the internal structure of the spray gun and drive assembly;

fig. 6 is an enlarged schematic view at a in fig. 5.

Description of reference numerals: 1. a melting furnace; 11. a discharging cover; 12. a furnace cover; 121. a material spraying port; 13. turning over a motor; 14. a supporting seat; 2. weighing; 3. a feed assembly; 31. a first feed section; 32. a second feed section; 321. a material receiving pocket; 4. an exhaust assembly; 41. a first exhaust section; 42. a second exhaust section; 5. a lifting assembly; 51. a base cartridge; 511. a stabilizing disc; 512. a limiting groove; 52. a lifting cylinder; 53. a lifting cylinder; 54. a limiting strip; 6. a rotating assembly; 61. rotating the motor; 62. rotating the driving wheel; 63. rotating the driven wheel; 7. a spray gun; 71. an inner drum; 711. an inner spray hole; 72. an outer rotating cylinder; 721. spraying an outer orifice; 722. a fuel hole; 73. a drive assembly; 731. a drive motor; 732. a drive wheel; 733. a driven wheel; 8. a lifting assembly; 81. a lift cord; 82. a lifting bar; 821. lifting the cross bar; 822. a column; 83. a winch; 9. an observation stage.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses automatic metal smelting equipment. Referring to fig. 1, the automatic metal smelting equipment comprises a melting furnace 1, a metering scale 2, a feeding assembly 3, an exhaust assembly 4, a lifting assembly 5, a rotating assembly 6, a spray gun 7 and a lifting assembly 8, wherein a furnace cover 12 is detachably connected to the melting furnace 1; the weighing scale 2 is connected with the melting furnace 1 and is used for weighing the weight of the melting furnace 1; the feeding assembly 3 and the exhaust assembly 4 are both connected with the melting furnace 1, the feeding assembly 3 is used for feeding materials into the melting furnace 1, and the exhaust assembly 4 is used for exhausting gas in the melting furnace 1; the lifting component 5 is connected with the spray gun 7 and is used for driving the spray gun 7 to lift, and the spray gun 7 is used for spraying reducing gas and fuel into the melting furnace 1; the rotating assembly 6 is connected with the lifting assembly 5, and the rotating assembly 6 is used for driving the spray gun 7 to rotate; the lifting assembly 8 is used to lift the furnace lid 12.

Referring to fig. 2, the melting furnace 1 is a cylindrical barrel with an open top, a discharge hole for discharging is formed in the side wall of the melting furnace 1, and a discharge cover 11 for covering the discharge hole is hinged to the side wall of the melting furnace 1; the furnace cover 12 is a cylindrical barrel with an opening at the bottom, the furnace cover 12 is detachably connected with the melting furnace 1 through a flange plate, and a circular spray opening 121 is formed in the top surface of the furnace cover 12. The two sides of the melting furnace 1 are respectively provided with a supporting seat 14 for supporting the melting furnace 1, the top of one supporting seat 14 is connected with a turnover motor 13 through a bolt, a driving shaft of the turnover motor 13 is connected with the 1-key of the melting furnace, and the other supporting seat 14 is welded and fixed with the melting furnace 1 through a rotating shaft. The scale 2 is a rectangular plate-shaped structure, and the scale 2 is installed below the support base 14.

Referring to fig. 2, the feeding assembly 3 includes a first feeding section 31 and a second feeding section 32, the first feeding section 31 is a bucket elevator; second feeding section 32 top fixedly connected with connects material pocket 321 to with connecing material pocket 321 integrated into one piece, connect material pocket 321 to be located first feeding section 31 and extend to the bottom of second feeding section 32 one end, and leave the clearance with between the first feeding section 31, connect the cross sectional area of material pocket 321 to be greater than the cross sectional area that first feeding section 31 is close to and connects material pocket 321 one end, second feeding section 32 bottom and bell 12 are fixed to be communicated, and adopt welded fastening's mode.

Referring to fig. 2, the exhaust assembly 4 includes a first exhaust section 41 and a second exhaust section 42, the first exhaust section 41 is a pipe with a circular cross section, one end of the first exhaust section 41 extends to the outside, and the other end extends to the second exhaust section 42; the second exhaust section 42 is a pipeline with a circular cross section, one end of the second exhaust section 42 is fixedly communicated with the furnace cover 12 and adopts a welding mode, and the other end of the second exhaust section 42 is connected with the first exhaust section 41 by a clamp type flexible joint.

Referring to fig. 3, the observation platform 9 is a platform for operators to operate and observe, a ladder for the operators to go up and down is arranged on the observation platform 9, and the lifting assembly 5, the rotating assembly 6 and the lifting assembly 8 are all arranged on the observation platform 9.

Referring to fig. 3 and 4, the lifting assembly 5 includes a base cylinder 51, a lifting cylinder 52, a lifting cylinder 53 and a limiting strip 54, the base cylinder 51 is in a cylindrical structure, a stabilizing disc 511 is disposed at the bottom of the base cylinder 51, the base cylinder 51 is rotatably connected with the stabilizing disc 511, the stabilizing disc 511 is located above the observation platform 9, and the stabilizing disc 511 is fixedly connected with the observation platform 9 through bolts; the lifting cylinder 52 is of a cylindrical structure, and the bottom end of the lifting cylinder 52 is inserted into the base cylinder 51 and is connected with the base cylinder 51 in a sliding manner; the outer wall of the lifting cylinder 52 is fixedly welded with a limiting strip 54, the inner wall of the base cylinder 51 is provided with a limiting groove 512 matched with the limiting strip 54, and the limiting strip 54 is connected with the base cylinder 51 in a sliding mode along the direction of the limiting groove 512.

Referring to fig. 3, a cross bar is welded and fixed on the top end of the lifting cylinder 52, the length direction of the cross bar is perpendicular to the length direction of the lifting cylinder 52, and one end of the cross bar, which is far away from the lifting cylinder 52, is connected with the spray gun 7. Referring to fig. 5 and 6, the spray gun 7 includes an inner rotary drum 71 and an outer rotary drum 72, the inner rotary drum 71 is located in the outer rotary drum 72, the inner rotary drum 71 and the outer rotary drum 72 are both cylindrical structures, the inner rotary drum 71 is connected with a pipeline for introducing reducing gas, and the outer rotary drum 72 is connected with a pipeline for introducing fuel; the bottom of the inner rotary drum 71 and the bottom of the outer rotary drum 72 are both in an inverted round table shape, the bottom surface of the inner rotary drum 71 is uniformly provided with a plurality of inner spray holes 711, and the inner walls of the inner spray holes 711 are gradually gathered at one side close to the bottom of the outer rotary drum 72; a plurality of outer spray holes 721 are uniformly formed in the bottom surface of the outer rotary cylinder 72, the inner wall of the outer spray holes 721 is gradually expanded away from the bottom wall of the inner spray holes 711, and the number of the outer spray holes 721 is equal to that of the inner spray holes 711, and the size of the outer spray holes is the same; the bottom surface of the outer cylinder 72 is circumferentially provided with fuel holes 722, the fuel holes 722 are annular, and the central axis of the fuel holes 722 is superposed with the central axis of the outer cylinder 72. The inner rotary drum 71 is connected with a driving assembly 73, the driving assembly 73 comprises a driving motor 731, a driving wheel 732 and a driven wheel 733, and the shell of the driving motor 731 is fixedly connected with the outer rotary drum 72 through bolts; the center shaft of the driving wheel 732 is connected with the driving shaft key of the driving motor 731, the driven wheel 733 is sleeved on the periphery of the inner rotary drum 71, and the driven wheel 733 is meshed with the driving wheel 732.

Referring to fig. 4, the rotating assembly 6 includes a rotating motor 61, a rotating driving wheel 62 and a rotating driven wheel 63, wherein the rotating motor 61 is fixedly connected with the steady disc 511 through a bolt; the axle center of the rotary driving wheel 62 is connected with the driving shaft key of the rotary motor 61; the rotary driven wheel 63 is sleeved on the base cylinder 51 and is welded and fixed with the base cylinder 51, and the rotary driving wheel 62 is meshed with the rotary driven wheel 63.

Referring to fig. 3, the lifting assembly 8 includes a lifting rope 81, a lifting rod 82 and a winding machine 83, wherein the lower end of the lifting rope 81 is branched and is hooked with the furnace cover 12; the lifting rod 82 comprises a lifting cross rod 821 and a vertical column 822, the vertical column 822 is rotatably connected to the observation platform 9, one end of the lifting cross rod 821 is welded and fixed to the top end of the vertical column 822, the length direction of the lifting cross rod 821 is perpendicular to the length direction of the vertical column 822, pulleys are respectively mounted at two ends of the top surface of the lifting cross rod 821, a hole for the lifting rope 81 to pass through is formed in the direction of one pulley deviating from the other pulley, and a hole for the lifting rope 81 to pass through is also formed in the direction of the other pulley deviating from one pulley; the hoist 83 is bolted to the column 822, and the hoisting rope 81 is passed through holes near the pulleys and wound around the two pulleys, and further passed through holes near the other pulley and then wound around the hoist 83.

A smelting process comprises the following steps:

step I, placing metal ore blocks in a first feeding section 31, and transporting the metal ores into a melting furnace 1 through the first feeding section 31 and a second feeding section 32;

step II, starting the lifting cylinder 53 and the rotating motor 61, wherein the rotating motor 61 drives the rotating driving wheel 62 and the rotating driven wheel 63 to rotate, so that the lifting assembly 5 is driven to rotate, and the lifting assembly 5 drives the spray gun 7 to rotate right above the spray port 121; the piston rod of the lifting cylinder 53 is lifted to drive the lifting cylinder 52 to lift, and the lifting cylinder 52 drives the spray gun 7 to lift and position.

Step III, covering the top of the second feeding section 32, connecting the first exhaust section 41 with the second exhaust section 42, starting a driving motor 731 and the weighing scale 2, driving a driving wheel 732 and a driven wheel 733 to rotate by the rotation of the driving motor 731, and driving an inner rotary drum 71 to rotate by the driven wheel 733, so that the amount of reducing gas sprayed out by a spray gun 7 is adjusted according to the weighing of the weighing scale 2, metal ores are melted in the melting furnace 1, and the gas discharged during melting is discharged out of the chamber along the first exhaust section 41 and the second exhaust section 42;

IV, disassembling the first exhaust section 41 and the second exhaust section 42, disassembling the furnace cover 12 and the melting furnace 1, starting a winch 83, pulling a lifting rope 81 by the winch 83, and lifting the furnace cover 12 by the lifting rope 81 with the help of the force of a pulley; and opening the turnover motor 13 and the discharging cover 11, rotating the turnover motor 13 to drive the melting furnace 1 to turn over, and pouring out the molten metal in the melting furnace 1 from the discharging port.

The implementation principle of the automatic metal smelting equipment in the embodiment of the application is as follows: firstly, a first feeding section 31 and a second feeding section 32 are utilized to place metal minerals to be melted in a melting furnace 1 in the melting furnace 1, and then the first feeding section 31 is connected with the second feeding section 32; starting the rotating motor 61, driving the lifting assembly 5 and the spray gun 7 to rotate by the rotating motor 61, starting the lifting cylinder 53 when the spray gun 7 is positioned right above the spray port 121, driving the lifting cylinder 52 and the spray gun 7 to move up and down by the lifting cylinder 53, and positioning the spray gun 7; the operator observes the indication number of the scale 2 and adjusts the amount of the reducing gas and the amount of the fuel sprayed into the melting furnace 1 according to the indication number of the scale 2; after the metal ores in the melting furnace 1 are completely melted, a worker detaches the furnace cover 12 from the melting furnace 1, disconnects the first exhaust section 41 and the second exhaust section 42, starts the winch 83, and drives the lifting rope 81 to lift the furnace cover 12; and finally, opening the discharging cover 11, starting the turnover motor 13, and pouring out the metal liquid in the melting furnace 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an automatic change and smelt metal equipment, includes melting furnace (1), can dismantle on melting furnace (1) and be connected with bell (12), has seted up nozzle (121) on bell (12), its characterized in that: a scale (2) is connected below the melting furnace (1); a spray gun (7) is arranged above the melting furnace (1), the spray gun (7) comprises an inner rotary drum (71) and an outer rotary drum (72), a driving assembly (73) for driving the inner rotary drum (71) to rotate relative to the outer rotary drum (72) is connected onto the inner rotary drum (71), and the inner rotary drum (71) and the outer rotary drum (72) rotate relative to each other and are used for adjusting the amount of the sprayed reducing gas.

2. The automatic metal smelting equipment according to claim 1, characterized in that: the bottom of the inner rotary drum (71) is provided with a plurality of inner spray holes (711), the bottom of the outer rotary drum (72) is provided with a plurality of outer spray holes (721), and the number and the size of the inner spray holes (711) are the same as that of the outer spray holes (721).

3. The automated metal smelting apparatus of claim 1, wherein: the driving assembly (73) comprises a driving motor (731), a driving wheel (732) and a driven wheel (733), the driving motor (731) is fixedly connected with the outer rotary drum (72), a driving shaft of the driving motor (731) is connected with the driving wheel (732), the driven wheel (733) is sleeved outside the inner rotary drum (71) and fixedly connected with the inner rotary drum in a rotating mode, and the driven wheel (733) is meshed with the driving wheel (732).

4. The automated metal smelting apparatus of claim 2, wherein: the hole wall of the inner spray hole (711) is gradually gathered at one side close to the outer spray hole (721).

5. The automated metal smelting apparatus of claim 2, wherein: the hole wall of the outer spray hole (721) is gradually opened at one side far away from the inner spray hole (711); the cross section area of the bottom of the outer rotary cylinder (72) is smaller than that of the top of the outer rotary cylinder (72), and fuel holes (722) are formed in the circumferential direction of the bottom wall of the outer rotary cylinder (72).

6. The automated metal smelting apparatus of claim 1, wherein: the spray gun (7) is connected with a lifting assembly (5), the lifting assembly (5) comprises a base barrel (51), a lifting barrel (52), a lifting cylinder (53) and a limiting strip (54), and the base barrel (51) is connected to the ground; the lifting cylinder (52) is inserted into the base cylinder (51) and is connected with the base cylinder (51) in a sliding way; the lifting cylinder (53) is positioned in the base barrel (51), and a piston rod of the lifting cylinder (53) is fixedly connected with the bottom of the lifting barrel (52); a limiting groove (512) is formed in the base barrel (51), and the limiting strip (54) is fixedly connected with the lifting barrel (52) and is connected with the base barrel (51) in a sliding mode along the limiting groove (512).

7. The automated metal smelting apparatus of claim 6, wherein: the base barrel (51) is connected with a rotating assembly (6), the rotating assembly (6) comprises a rotating motor (61), a rotating driving wheel (62) and a rotating driven wheel (63), and the rotating motor (61) is used for driving the rotating driving wheel (62) to rotate; the rotary driving wheel (62) is meshed with the rotary driven wheel (63), and the rotary driven wheel (63) is sleeved on the base cylinder (51) and is fixedly connected with the base cylinder (51).

8. The automated metal smelting apparatus of claim 1, wherein: the furnace cover (12) is connected with a feeding assembly (3) and an exhaust assembly (4), the feeding assembly (3) comprises a first feeding section (31) and a second feeding section (32), the first feeding section (31) is used for feeding materials, one end of the second feeding section (32) is communicated with the furnace cover (12), and the other end of the second feeding section (32) is used for containing the materials discharged from the first feeding section (31); the exhaust assembly (4) comprises a first exhaust section (41) and a second exhaust section (42), the first exhaust section (41) extends to the outdoor, one end of the second exhaust section (42) is communicated with the furnace cover (12), and the other end of the second exhaust section (42) is detachably connected with the second exhaust section.

9. The automated metal smelting apparatus of claim 1, wherein: the furnace cover (12) is connected with a lifting assembly (8), the lifting assembly (8) comprises a lifting rope (81), a lifting rod (82) and a winch (83), one end of the lifting rope (81) is connected with the furnace cover (12), and the other end of the lifting rope bypasses the lifting rod (82) and is wound on the winch (83); the lifting rod (82) is used for limiting the lifting rope (81) and driving the lifting rope (81) to move.

10. A smelting process as claimed in any one of claims 1 to 9, comprising the steps of:

i, lifting and transporting metal ores into a melting furnace (1) by using a lifting assembly (8);

step II, starting the lifting assembly (5) and the rotating assembly (6), wherein the lifting assembly (5) and the rotating assembly (6) drive the spray gun (7) to move right above the melting furnace (1);

step III, starting a driving assembly (73) and the metering scale (2), wherein the driving assembly (73) drives the inner rotary drum (71) to rotate, so that the amount of reducing gas sprayed out by the spray gun (7) is adjusted according to the weighing of the metering scale (2), and the metal ore is melted in the melting furnace (1);

and step III, blocking the second feeding section (32), disassembling the first exhaust section (41) and the second exhaust section (42), starting the lifting assembly (8), lifting the furnace cover (12) by the lifting assembly (8), driving the melting furnace (1) to overturn, and pouring out the molten metal in the melting furnace (1).