CN116275007A - A two-stage casting alloy production line and its production method - Google Patents

Abstract

The invention relates to a two-section casting alloy production line and a production method thereof, belonging to the technical field of metallurgy. The two-section casting alloy production line comprises a zinc sheet adding device, a cored induction furnace, a heat preservation furnace, a quantitative automatic casting device, a slag skimming robot, a linear ingot casting machine and a cooling device; the zinc sheet adding device sends zinc sheets into the cored induction electric furnace through the lifting device, the outlet of the cored induction electric furnace is communicated with the inlet of the heat preservation furnace, solution in the heat preservation furnace flows into an ingot mould on the linear ingot casting machine through the quantitative automatic casting device arranged at the outlet of the heat preservation furnace, the slag skimming robot is arranged at the side edge of the linear ingot casting machine to skim the solution flowing into the ingot mould, and the linear ingot casting machine is provided with a cooling device. The invention has high degree of automation, reduces the labor intensity of staff, improves the production efficiency and improves the construction safety.

Description

A two-stage casting alloy production line and its production method

technical field

The invention belongs to the technical field of metallurgy, and in particular relates to a two-stage cast alloy production line and a production method thereof.

Background technique

At present, the production of domestic cast zinc alloys is to first melt the zinc sheet with a power frequency furnace, and then the zinc liquid flows into the cored induction furnace through the chute, and then adds Al, Cu, Mg and other metals in the cored induction furnace according to the requirements of the alloy grade. After the qualified alloy is prepared, it flows into the holding furnace through the chute, and then is cast into 9-10kg/block zinc alloy ingots with a linear ingot casting machine. Three-stage smelting is generally used in smelting, which has a high slag rate, high production costs, and high labor intensity; in the casting process, most domestic slag is manually removed, stacked and packed, and then transported to the product area with a forklift or crane. This kind of production line has problems such as low degree of automation, high labor intensity, low production efficiency, inability to quickly respond to the market, and high safety pressure.

Therefore, it is necessary to provide a two-stage casting alloy production line and its production method, which have a high degree of automation, reduce the labor intensity of staff, improve production efficiency, and improve construction safety.

Contents of the invention

In order to overcome the problems in the background technology, the present invention provides a two-stage casting alloy production line and its production method, which have a high degree of automation, reduce the labor intensity of workers, improve production efficiency, and improve construction safety.

To achieve the above object, the present invention is achieved through the following technical solutions:

The invention provides a two-stage casting alloy production method, comprising the following steps:

Step 1: Put the zinc flakes into the cored induction furnace 1 for melting by using a pusher or the zinc flake adding device 7, and add ammonium chloride to remove slag.

Step 2: Add zinc flakes, aluminum ingots, magnesium ingots, and copper flakes according to the weight ratio or master alloy into the cored induction furnace 1 for smelting. The temperature is controlled between 450-600°C, and ammonium chloride is added to slag, and smelting and sampling are analyzed. After being qualified, the zinc alloy liquid is slipped into the holding furnace 2 by the chute.

Step 3: The holding furnace 2 maintains a temperature of 500-600°C, the zinc alloy melt slips from the holding furnace 2 into the ingot mold through the quantitative automatic casting device 3, and the slag is removed by the slag removal robot 4, conveyed by the linear ingot casting machine 5, and cooled by the cooling device 6 Cooling, then the zinc ingots fall from the ingot mold into the zinc ingot conveying device 8, automatically palletized, automatically packed, and automatically transported to the finished product warehouse.

Preferably, the master alloy in step 2 is an aluminum-magnesium-copper alloy in which zinc flakes, aluminum ingots, magnesium ingots, and copper flakes are formulated according to weight ratio.

As a preference, the aluminum ingots, magnesium ingots and copper flakes in the second step can be added individually or in any combination.

The two-stage cast alloy production line includes a zinc flake adding device 7, a cored induction furnace 1, a holding furnace 2, a quantitative automatic casting device 3, a slag removal robot 4, a linear ingot casting machine 5, a cooling device 6, and zinc ingot conveying Device 8; the zinc sheet adding device 7 sends the zinc sheet into the cored induction furnace 1 through the lifting device, the outlet of the cored induction furnace 1 is connected to the inlet of the holding furnace 2, and the solution in the holding furnace 2 passes through its outlet The quantitative automatic casting device 3 provided at the place flows into the ingot mold on the linear ingot casting machine 5, and the slag removal robot 4 is installed on the side of the linear ingot casting machine 5 to carry out slag removal treatment on the solution flowing into the ingot mold, and the linear ingot casting machine 5 is provided with a cooling device 6, and the conveying end of the linear ingot casting machine 5 is provided with a zinc ingot conveying device 8.

Preferably, the zinc flake adding device 7 is a grid frame structure and the melting point of the material it adopts is higher than the melting point of the zinc flake, and the zinc flake adding device 7 is divided into a zinc flake placing frame 71 and a counterweight device on its upper side 72. The zinc sheet placement frame 71 is a grid frame structure, and the top of the counterweight device 72 is provided with lifting lugs 73 .

Preferably, the slag removal robot 4 includes a slag removal shovel 41, a rotary arm 42, a rigid arm 43, a boom 44, a rotary seat 45 and a control system, the slag removal shovel 41, the rotary arm 42, the rigid arm 43. The boom 44 and the swivel seat 45 are hinged sequentially and are electrically connected to the control system respectively. The swivel seat 45 is arranged on the ground or the support at the side of the linear ingot casting machine 5 .

As preferably, the slag removal robot 4 also includes a first motor 46, a second motor 47, a third motor 48, a fourth motor 49 and a fifth motor 410, the first motor 46, the second motor 47, the third motor 48. The fourth motor 49 and the fifth motor 410 are respectively electrically connected to the control system. The first motor 46 is installed on the rotary arm 42, and its power output end is connected to the slag scraper 41 through the straight-toothed conical gear train I, and the second The motor 47 is installed on the rigid arm 43, and its power output end is connected to the rotary arm 42 through a precision reducer. The third motor 48 is installed on the boom 44, and its power output end is connected to the rigid arm through a straight-toothed bevel gear train II. 43. The fourth motor 49 is installed on the upper part of the revolving base 45, and its power output end is connected to the boom 44 through a spur gear train. Connect the swivel seat 45.

As preferably, the cooling device 6 includes an air cooling device 61 and a water cooling device 62, the air cooling device 61 and the water cooling device 62 are installed on the linear ingot casting machine 5 respectively, and the air cooling device 61 is located closer to the water cooling device 62 The linear ingot casting machine 5 conveys the starting end.

Beneficial effects of the present invention:

(1) The present invention adopts two-stage smelting, compared with the original three-stage smelting, the energy consumption is reduced by 30%, the energy-saving effect is better, the slag rate is reduced by more than 0.5% (more than 3.5% at present), and the production cost is reduced by more than 10%;

(2) The present invention adopts casting, automatic slag removal, linear ingot casting machine conveying, forced cooling, automatic palletizing, automatic packing, automatic conveying to form an automatic casting production line with a high degree of automation, reducing the number of operators from three to no one , can significantly reduce labor costs;

(3) The present invention uses an air-cooling device to cool the zinc ingot and then a water-cooling device to cool the zinc ingot again, preventing the water-cooling device from directly causing the temperature of the zinc ingot to drop sharply and causing cracks in the zinc ingot. It is lowered from about 500-600°C just after casting to about 100-200°C, which is convenient for subsequent processing.

Description of drawings

Fig. 1 is the flow chart of two-stage cast alloy production method of the present invention;

Fig. 2 is the structural representation of two-stage cast alloy production line of the present invention;

Fig. 3 is a schematic structural view of the slag removal robot of the present invention;

Fig. 4 is a structural schematic diagram of the zinc flake adding device of the present invention.

In the figure, 1-cored induction furnace, 2-holding furnace, 3-quantitative automatic casting device, 4-slag removal robot, 5-linear ingot casting machine, 6-cooling device, 7-zinc sheet adding device, 8-zinc Ingot conveying device, 41-slag removal shovel, 42-rotary arm, 43-rigid arm, 44-big arm, 45-rotary seat, 46-first motor, 47-second motor, 48-third motor, 49-the fourth motor, 410-the fifth motor, 61-air cooling device, 62-water cooling device, 71-zinc sheet placement frame, 72-counterweight device, 73-lifting lug.

Detailed ways

In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so as to facilitate the understanding of technical personnel.

As shown in Figures 1-4, the described two-stage cast alloy production method comprises the following steps:

Step 1: Put the zinc flakes into the cored induction furnace 1 for melting by using a pusher or the zinc flake adding device 7, and add ammonium chloride to remove slag.

Step 2: Add zinc flakes, aluminum ingots, magnesium ingots, and copper flakes according to the weight ratio or master alloy into the cored induction furnace 1 for smelting. The temperature is controlled between 450-600°C, and ammonium chloride is added to slag, and smelting and sampling are analyzed. After being qualified, the zinc alloy liquid is slipped into the holding furnace 2 by the chute.

Step 3: The holding furnace 2 maintains a temperature of 500-600°C, the zinc alloy melt slips from the holding furnace 2 into the ingot mold through the quantitative automatic casting device 3, and the slag is removed by the slag removal robot 4, conveyed by the linear ingot casting machine 5, and cooled by the cooling device 6 Cooling, then the zinc ingots fall from the ingot mold into the zinc ingot conveying device 8, automatically palletized, automatically packed, and automatically transported to the finished product warehouse.

The master alloy in the step 2 is an aluminum-magnesium-copper alloy prepared according to the weight ratio of zinc flakes, aluminum ingots, magnesium ingots, and copper flakes, and the aluminum ingots, magnesium ingots, and copper flakes in the step 2 can be added separately or arbitrarily Combined addition, two-stage smelting is adopted, compared with the original three-stage smelting, the energy consumption is reduced by 30%, the energy saving effect is better, the slag rate is reduced by more than 0.5% (the existing 3.5%), and the production cost is reduced by more than 10%.

The flue gas produced by the cored induction furnace 1 and the holding furnace 2 is collected and processed by the bag filter, and the flue gas is purified or otherwise treated, and the alloy slag generated by the holding furnace 2 is sent to the scum treatment process for treatment.

The two-stage cast alloy production line includes a zinc flake adding device 7, a cored induction furnace 1, a holding furnace 2, a quantitative automatic casting device 3, a slag removal robot 4, a linear ingot casting machine 5, a cooling device 6, and zinc ingot conveying Device 8; the zinc sheet adding device 7 sends the zinc sheet into the cored induction furnace 1 through the lifting device, the outlet of the cored induction furnace 1 is connected to the inlet of the holding furnace 2, and the solution in the holding furnace 2 passes through its outlet The quantitative automatic casting device 3 provided at the place flows into the ingot mold on the linear ingot casting machine 5, and the slag removal robot 4 is installed on the side of the linear ingot casting machine 5 to carry out slag removal treatment on the solution flowing into the ingot mold, and the linear ingot casting machine 5 is provided with a cooling device 6, and the conveying end of the linear ingot casting machine 5 is provided with a zinc ingot conveying device 8; the casting and slag removal robot 4 is used to automatically remove slag, and the linear ingot casting machine 5 is used for forming and conveying, and the cooling device 6 is used for forced cooling , and then the zinc ingot conveying device 8 carries out conveying, automatic palletizing, automatic packing, automatic conveying, forming an automatic casting production line, with a high degree of automation, reducing the number of operators from three to no one, which can greatly reduce labor costs.

The zinc flake adding device 7 is a grid frame structure and the melting point of the material it adopts is higher than the zinc flake melting point. The zinc flake adding device 7 is divided into a zinc flake placing frame 71 and a counterweight device 72 on its upper side. The sheet placement frame 71 is a grid frame structure, and the top of the counterweight device 72 is provided with lifting lugs 73, the zinc sheets are placed in the zinc sheet placement frame 71, and the lifting device adds the zinc sheets to the device through the lifting lugs 73. 7 and the zinc flakes inside are placed in the cored induction furnace 1 for smelting, the counterweight device 72 makes the zinc flake adding device 7 sink as a whole, and after the zinc flakes melt, they flow into the cored induction furnace from the grid of the zinc flake placement frame 71 Electric furnace 1, then the zinc sheet adding device 7 is hung out.

The slag removal robot 4 includes a slag removal shovel 41, a rotary forearm 42, a rigid forearm 43, a boom 44, a revolving seat 45 and a control system, the slag removal shovel 41, a rotary forearm 42, a rigid forearm 43, a large The arm 44 and the swivel seat 45 are hinged sequentially and are respectively electrically connected to the control system. The swivel seat 45 is arranged on the ground or the support at the side of the linear ingot casting machine 5 .

The slag removal robot 4 also includes a first motor 46, a second motor 47, a third motor 48, a fourth motor 49 and a fifth motor 410, the first motor 46, the second motor 47, the third motor 48, the The four motors 49 and the fifth motor 410 are respectively electrically connected to the control system. The first motor 46 is installed on the rotary arm 42, and its power output end is connected to the slag shovel 41 through the straight-toothed bevel gear train I to drive the slag shovel 41. Swing, the second motor 47 is installed on the rigid arm 43, and its power output end is connected to the rotary arm 42 through a precision reducer, driving the rotary arm 42 to rotate axially, and the third motor 48 is installed on the boom 44, and its power The output end is connected to the rigid forearm 43 through the straight-toothed conical gear train II to drive the rigid forearm 43 to swing. The fourth motor 49 is installed on the upper part of the slewing base 45, and its power output end is connected to the big arm 44 through the straight-toothed cylindrical gear train to drive the big arm. The arm 44 swings, the fifth motor 410 is installed at the bottom of the revolving base 45, and its power output end is connected to the revolving base 45 through a straight-toothed bevel gear system III, which drives the revolving base 45 to rotate. The multi-degree-of-freedom movement of the rotation realizes the slag removal process.

The cooling device 6 includes an air cooling device 61 and a water cooling device 62, the air cooling device 61 and the water cooling device 62 are respectively installed on the linear ingot casting machine 5, and the air cooling device 61 is closer to the linear ingot casting machine than the water cooling device 62 At the end where the machine 5 starts to transport, the air-cooling device 61 is used to cool down the zinc ingot at first, and then the water-cooling device 62 is used to cool down the zinc ingot again, so as to prevent the water-cooling device 62 from directly causing the temperature of the zinc ingot to drop sharply and cause cracks in the zinc ingot. The air-cooling device 61 and the The cooperation of the water-cooling device 62 lowers the temperature of the casting alloy from about 500-600° C. to about 100-200° C., which is convenient for subsequent processing.

Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that it can be described in terms of form and Various changes may be made in the details without departing from the scope of the invention defined by the claims.

Claims (9)

1. a two-stage casting alloy production method is characterized in that: the two-stage casting alloy production method comprises the following steps: Step 1: Melt the zinc flakes into the cored induction furnace (1) using a pusher or zinc flake adding device (7), and add ammonium chloride to slag; Step 2: Add zinc flakes, aluminum ingots, magnesium ingots, and copper flakes according to the weight ratio or master alloy into the cored induction furnace (1) for smelting. The temperature is controlled between 450 and 600°C, and ammonium chloride is added to slag and smelted After the sampling analysis is qualified, the zinc alloy liquid is slipped into the holding furnace (2) through the chute; Step 3: The holding furnace (2) maintains a temperature of 500-600°C, and the zinc alloy melt slips from the holding furnace (2) into the ingot mold through the quantitative automatic casting device (3), and the slag is removed by the slag removal robot (4), and the straight line The ingot casting machine (5) conveys, the cooling device (6) cools down, and then the zinc ingots fall from the ingot mold into the zinc ingot conveying device (8), automatically palletized, automatically packed, and automatically transported to the finished product warehouse. 2. A kind of two-stage casting alloy production method according to claim 1, characterized in that: the master alloy in the step 2 is the aluminum alloy after zinc flakes, aluminum ingots, magnesium ingots, and copper flakes are proportioned according to the weight ratio. Magnesium copper alloy. 3. A two-stage casting alloy production method according to claim 1 or 2, characterized in that the aluminum ingots, magnesium ingots and copper flakes in the second step can be added individually or in any combination. 4. A production line based on a two-stage casting alloy production method according to claim 1, characterized in that: the two-stage casting alloy production line includes a zinc flake adding device (7), a cored induction furnace (1) , holding furnace (2), quantitative automatic casting device (3), slag removal robot (4), linear ingot casting machine (5), cooling device (6), zinc ingot conveying device (8); the zinc sheet added The device (7) sends the zinc flakes into the cored induction furnace (1) through the lifting device, the outlet of the cored induction furnace (1) is connected to the inlet of the holding furnace (2), and the solution in the holding furnace (2) passes through it. The quantitative automatic casting device (3) installed at the outlet flows into the ingot mold on the linear ingot casting machine (5), and the slag removal robot (4) is installed on the side of the linear ingot casting machine (5) to control the solution flowing into the ingot mold For slag removal treatment, the linear ingot casting machine (5) is provided with a cooling device (6), and the conveying end of the linear ingot casting machine (5) is provided with a zinc ingot conveying device (8). 5. A two-stage casting alloy production line according to claim 4, characterized in that: the zinc flake adding device (7) is a grid frame structure and the melting point of the material used is higher than the melting point of zinc flakes, The zinc sheet adding device (7) is divided into a zinc sheet placement frame (71) and a counterweight device (72) on its upper side, the zinc sheet placement frame (71) is a grid frame structure, and the counterweight device (72) The top is provided with lifting lugs (73). 6. A two-stage casting alloy production line according to claim 4 or 5, characterized in that: the slag removal robot (4) includes a slag removal shovel (41), a rotary arm (42), a small rigid arm (43), main arm (44), slewing seat (45) and control system, slag removal shovel (41), slewing arm (42), rigid arm (43), main arm (44) and slewing seat ( 45) are sequentially hinged and electrically connected to the control system respectively, and the swivel seat (45) is set on the side ground or support of the linear ingot casting machine (5). 7. A two-stage casting alloy production line according to claim 6, characterized in that: the slag removal robot (4) also includes a first motor (46), a second motor (47), a third motor (48), the fourth motor (49) and the fifth motor (410), the first motor (46), the second motor (47), the third motor (48), the fourth motor (49) and the fifth motor ( 410) are respectively electrically connected with the control system, the first motor (46) is installed on the rotary arm (42), and its power output end is connected to the slag scraper (41) through the straight bevel gear train I, and the second motor (47 ) is installed on the rigid arm (43), its power output end is connected to the rotary arm (42) through a precision reducer, the third motor (48) is installed on the boom (44), and its power output end is passed through a straight toothed cone The gear train II is connected to the rigid arm (43), the fourth motor (49) is installed on the upper part of the slewing seat (45), and its power output end is connected to the boom (44) through a spur gear train, and the fifth motor (410) is installed At the bottom of the slewing seat (45), its power output end is connected to the slewing seat (45) through the straight bevel gear train III. 8. A two-stage casting alloy production line according to claim 4, 5 or 7, characterized in that: the cooling device (6) includes an air cooling device (61) and a water cooling device (62), and the air cooling The device (61) and the water cooling device (62) are respectively installed on the linear ingot casting machine (5), and the air cooling device (61) is at the end closer to the delivery start of the linear ingot casting machine (5) than the water cooling device (62) . 9. A two-stage casting alloy production line according to claim 6, characterized in that: the cooling device (6) includes an air cooling device (61) and a water cooling device (62), and the air cooling device (61) and the water cooling device (62) are respectively installed on the linear ingot casting machine (5), and the air cooling device (61) is at the end close to the delivery start of the linear ingot casting machine (5) compared with the water cooling device (62).

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