阅读说明：本技术 一种具备定量功能的拉动式熔炼系统及其使用方法 (Pull-type smelting system with quantitative function and use method thereof ) 是由 吴书平 潘剑平 于 2021-08-17 设计创作，主要内容包括：本发明提供了一种具备定量功能的拉动式熔炼系统及其使用方法,包括中央控制系统、中央融化室、中央保持室、第一阀杆阀环结构、转运包、第二阀杆阀环结构、转运结构、精炼站、机台保持单元、第三阀杆阀环结构、定量机构、第四阀杆阀环结构和机台压室导槽,所述中央融化室下料位与中央保持室相连,所述中央保持室下料位与转运包相连,所述转运包通过转运结构控制运输依次通过精炼站至与机台保持单元相连,所述机台保持单元下料位与定量机构相连,所述定量机构下料位与机台压室导槽相连。本发明实现定量给汤循环,定量下料精确,且成本较低。(The invention provides a pulling type smelting system with a quantifying function and a using method thereof, and the pulling type smelting system comprises a central control system, a central melting chamber, a central holding chamber, a first valve rod valve ring structure, a transferring bag, a second valve rod valve ring structure, a transferring structure, a refining station, a machine station holding unit, a third valve rod valve ring structure, a quantifying mechanism, a fourth valve rod valve ring structure and a machine station pressure chamber guide groove. The invention realizes the circulation of quantitative feeding, has accurate quantitative blanking and lower cost.)

1. A pull-type smelting system with a quantitative function is characterized by comprising: central control system, central authorities melt room, central authorities and keep room, first valve rod valve ring structure, transport package, second valve rod valve ring structure, transport structure, refining station, board retaining unit, third valve rod valve ring structure, dosing mechanism, fourth valve rod valve ring structure and board pressure chamber guide slot, central authorities melt room unloading position and central authorities and keep the room continuous, central authorities keep room unloading position and transport package continuous, transport package control transportation loop through refining station to continuous with board retaining unit, board retaining unit unloading position links to each other with dosing mechanism, dosing mechanism unloading position and board pressure chamber guide slot link to each other, transport package unloading position, board retaining unit, dosing mechanism, board pressure chamber guide slot are according to the space height degressive setting, first valve rod valve ring structure, second valve rod valve ring structure, third valve rod valve ring structure, ring structure, Fourth valve stem valve ring structure and transport structure and central control system electricity and be connected, first valve stem valve ring structural installation sets up in central holding chamber, second valve stem valve ring structural installation sets up in transporting the package, third valve stem valve ring structural installation sets up in the platform keeps the unit, fourth valve stem valve ring structural setting is in dosing mechanism.

2. The pulling-type smelting system with the quantitative function as claimed in claim 1, wherein liquid level devices are arranged on the central holding chamber, the transfer ladle and the machine platform holding unit, and the liquid level devices are electrically connected with the central control system.

3. The pull-type smelting system with the quantitative function as claimed in claim 1, wherein the transfer structure comprises a guide rail and a moving trolley, the moving trolley slides in the guide rail, the lower end of the moving trolley is connected with the transfer ladle, and the moving trolley is electrically connected with the central control system.

4. The pulling smelting system with a fixed-quantity function as recited in claim 1, wherein the valve stem portions of the first valve stem valve ring structure, the second valve stem valve ring structure, the third valve stem valve ring structure and the fourth valve stem valve ring structure are provided as hollow structures, and heating elements are arranged inside the hollow structures.

5. The pulling type smelting system with the quantitative function according to claim 1, wherein the quantitative mechanism comprises a quantitative cup body, a quantitative cup diversion inlet, a support, a quantitative plug, a liquid level sensor and a quantitative plug control motor assembly, the quantitative cup diversion inlet is arranged on one side of the quantitative cup body, the machine station holding unit blanking level is just opposite to the quantitative cup diversion inlet, the support is arranged above the quantitative cup body, the quantitative plug is installed on the bottom surface of the support through the quantitative plug control motor assembly and can move up and down relative to the quantitative cup body, the quantitative plug can seal the quantitative cup body, the quantitative cup body is further provided with the liquid level sensor, the liquid level sensor is arranged at a position opposite to the height position of the quantitative cup diversion inlet, and the liquid level sensor is electrically connected with the central control system, the lower end of the quantitative cup body is connected with a guide groove of a pressure chamber of the machine table through a valve ring structure of a fourth valve rod.

6. The pulling-type smelting system with a quantitative function as claimed in claim 1, wherein said machine table holding unit is provided with a heating device and a temperature monitoring device.

7. The pulling smelting system with quantitative function as recited in claim 1, wherein said machine holding unit is connected with a protective gas source higher than atmospheric pressure.

8. The use method of the pull-type smelting system with the quantitative function is characterized by comprising the following steps of:

s1, melting metal, controlling the central melting furnace to melt metal liquid through the central control system, and then enabling the metal liquid to flow from the central melting furnace to the central holding chamber;

s2, injecting the molten metal into the transfer package from the central holding chamber by controlling the opening of the valve ring structure of the first valve rod through the central control system;

s3, refining and purifying, namely transporting the transfer ladle through the transfer structure, and performing refining and purifying treatment such as degassing, slagging and the like on the molten metal in the transfer ladle;

s4, transferring the transfer package to a designated position, and transferring the transfer package to the position and height of a designated machine station holding unit through a transfer structure;

s5, discharging and feeding the material into the machine station keeping unit, wherein the transfer package receives a command of the central control system to control the opening of the valve ring structure of the second valve rod, and the valve discharges the material into the machine station keeping unit;

s6, the material feeding quantitative mechanism and the material feeding machine pressure chamber guide groove, wherein the machine station holding unit receives the instruction of the central control system to control the opening of the third valve rod valve ring structure, the valve feeding quantitative mechanism, the quantitative mechanism receives the instruction of the central control system to control the opening of the fourth valve rod valve ring structure, and the material feeding quantitative mechanism feeds the material into the machine pressure chamber guide groove.

9. The method of using a pull-type smelting system with a dosing function as claimed in claim 8, wherein the method of using the dosing mechanism includes the steps of:

s601, adjusting the height of the quantitative ring, and changing the volume in the quantitative cup;

s602, closing the fourth valve rod valve ring structure, and sending a valve rod opening instruction to the third valve rod valve ring structure of the machine station holding unit;

s603, allowing the molten metal to flow into the quantitative cup body of the quantitative mechanism from the machine platform holding unit until the liquid level touches the liquid level sensor of the quantitative cup body;

s604, sending a signal after the liquid level sensor contacts the molten metal, immediately closing a valve ring structure of a fourth valve rod of the machine station holding chamber, and stopping the molten metal from flowing into the quantitative cup body;

s605, the machine sends a soup feeding instruction to a fourth valve rod valve ring structure in the quantitative mechanism, a valve rod is opened immediately, and molten metal in the quantitative mechanism flows into a guide groove of a pressure chamber of the machine through a guide groove at the lower part of the quantitative mechanism;

and S606, closing a fourth valve rod valve ring structure of the quantitative mechanism after the metal liquid in the quantitative mechanism flows out, repeating the step S602, and entering the next quantitative soup feeding circulation.

10. The use method of a pull-type smelting system with a quantitative function according to claim 8, wherein the power of the central smelting furnace combustion chamber is adjusted by a frequency converter, namely, the central smelting furnace combustion chamber is divided into a plurality of gears from small to large or is continuously and steplessly adjusted from small to large so as to adjust the molten metal tapping amount per unit time;

the central smelting furnace supplies molten metal to n groups of machines, and the total quantity of the molten metal required by all the machines in unit time is D = D1+ D2+ … … + Dn;

a maximum melt capacity per unit time of the central furnace Cmax > D;

each group of machine stations is provided with a machine station holding unit, the safe metal liquid storage amount Qsi, the maximum metal liquid storage amount Qmi and the metal liquid distribution lead period from the central melting furnace to the machine station holding unit are set as Lti, and a metal liquid replenishing point Ri = Qsi + Di x Lti of the machine station holding unit is calculated;

the total maintenance cost of the machine station holding unit to the molten metal pair is Hi, the single distribution cost of the central melting furnace to the machine station holding unit is Si, the required quantity of the molten metal in unit time is Di, and the economic distribution batch is calculated to be Qi = (2 DiSi/Hi) ^ 0.5.

Technical Field

The invention relates to the technical field of smelting, in particular to a pulling type smelting system with a quantitative function and a using method thereof.

Background

At present, when higher quantitative precision discharging is required in the metal smelting process, a piston type quantitative discharging device is commonly adopted at home and abroad. The device mainly comprises a heating container, a material suction pipe, a piston pump, a one-way valve and a material discharge pipe, wherein one end of the material suction pipe is inserted into the heating container, the other end of the material suction pipe is connected with the piston pump through the one-way valve, and the lower part of a piston is connected with the material discharge pipe through the one-way valve. The piston type quantitative discharging device adopts the reciprocating motion of the piston, the one-way valve of the feeding hole is opened during material suction, the one-way valve of the discharging hole is opened during material pressing, and the quantitative discharging function of molten metal is realized by controlling the flowing direction of liquid. Due to the problems of mutual friction and abrasion between the piston and the piston sleeve and different expansion with heat and contraction with cold at high temperature between the piston and the piston sleeve, the device has higher requirements on manufacturing precision and manufacturing materials, and the piston type discharging device has shorter service life.

The prior Chinese patent publication No. CN100449013C discloses a magnesium alloy smelting and quantitative pouring device, which utilizes a post rod to drive a gate to move up and down to divide a crucible into a smelting chamber and a quantitative chamber, and is combined with a boss at the bottom of the crucible to realize the opening and closing of the smelting chamber and the quantitative chamber. In the method, however, the movable seal is adopted between the up-and-down movement of the pole rod and the crucible cover, the vacuum degree is not high, impurity gases can be mixed to oxidize aluminum alloy and magnesium alloy, oxidation products are generated, and casting defects are caused; when the gate moves downwards to be sealed with a boss at the bottom of the crucible, the contact area is small, the sealing performance is poor, even if enough magnesium alloy flows into the quantitative chamber, if the magnesium alloy liquid in the melting chamber and the quantitative chamber has a height difference, a small amount of magnesium alloy may still flow into the quantitative chamber from the melting chamber, and the adverse effect is brought to the accurate quantitative pouring of the magnesium alloy.

There is a need for a novel metal melting system with a quantitative function, which can more accurately realize the quantitative function and save a large amount of cost.

Disclosure of Invention

The invention provides a pull-type smelting system with a quantitative function and a using method thereof, and solves the problems that the existing metal smelting system is high in price and inaccurate in quantitative blanking through technical transformation of the existing metal smelting system.

In order to solve the technical problems, the invention specifically adopts the following technical scheme:

the utility model provides a system is smelted to pulling-type that possesses ration function, melts room, central authorities including central control system, central authorities and keeps room, first valve rod valve ring structure, transports package, second valve rod valve ring structure, transports structure, refinery station, board and keeps unit, third valve rod valve ring structure, dosing mechanism, fourth valve rod valve ring structure and board pressure room guide slot, central authorities melt room unloading position and central authorities and keep the room and link to each other, central authorities keep room unloading position and transport package to link to each other, transport the package and control the transportation through the transport structure and loop through the refinery station to keeping unit with the board and link to each other, board keeps unit unloading position and dosing mechanism to link to each other, dosing mechanism unloading position and board guide slot link to each other, transport package unloading position, board and keep unit, dosing mechanism, board guide slot according to space height degressive setting, first valve rod valve ring structure, The second valve stem valve ring structure, the third valve stem valve ring structure, the fourth valve stem valve ring structure and the transferring structure are electrically connected with the central control system, the first valve stem valve ring structure is arranged in the central holding chamber, the second valve stem valve ring structure is arranged in the transferring bag, the third valve stem valve ring structure is arranged in the machine table holding unit, and the fourth valve stem valve ring structure is arranged in the quantifying mechanism.

Preferably, the central holding chamber, the transfer bag and the machine table holding unit are all provided with liquid level devices, and the liquid level devices are electrically connected with the central control system.

Preferably, the transfer structure comprises a guide rail and a moving trolley, the moving trolley slides in the guide rail, the lower end of the moving trolley is connected with the transfer bag, and the moving trolley is electrically connected with the central control system.

Preferably, the valve stem portions of the first valve stem valve ring structure, the second valve stem valve ring structure, the third valve stem valve ring structure and the fourth valve stem valve ring structure are hollow structures, and a heating element is arranged inside the hollow structures.

Preferably, the dosing mechanism includes ration cup, ration cup water conservancy diversion entry, support, ration stopper, level sensor and ration stopper control motor subassembly, ration cup one side is provided with ration cup water conservancy diversion entry, the board keeps unit feed level and ration cup water conservancy diversion entry just to setting up down, the support sets up in ration cup top, the ration stopper passes through the ration stopper control motor subassembly and installs on the support bottom surface, and the ration stopper can reciprocate by the relative ration cup, just the ration stopper can seal the ration cup, still be provided with level sensor on the ration cup, level sensor sets up in the opposite position department of ration cup water conservancy diversion entry high position, level sensor is connected with central control system electricity, ration cup lower extreme links to each other with board pressure chamber guide slot through fourth valve stem ring structure.

Preferably, the machine table holding unit is provided with a heating device and a temperature monitoring device.

Preferably, the machine station holding unit is connected with a protective gas source higher than the atmospheric pressure.

A use method of a pull-type smelting system with a quantitative function comprises the following steps:

s1, melting metal, controlling the central melting furnace to melt metal liquid through the central control system, and then enabling the metal liquid to flow from the central melting furnace to the central holding chamber;

s2, injecting the molten metal into the transfer package from the central holding chamber by controlling the opening of the valve ring structure of the first valve rod through the central control system;

s3, refining and purifying, namely transporting the transfer ladle through the transfer structure, and performing refining and purifying treatment such as degassing, slagging and the like on the molten metal in the transfer ladle;

s4, transferring the transfer package to a designated position, and transferring the transfer package to the position and height of a designated machine station holding unit through a transfer structure;

s5, discharging and feeding the material into the machine station keeping unit, wherein the transfer package receives a command of the central control system to control the opening of the valve ring structure of the second valve rod, and the valve discharges the material into the machine station keeping unit;

s6, the material feeding quantitative mechanism and the material feeding machine pressure chamber guide groove, wherein the machine station holding unit receives the instruction of the central control system to control the opening of the third valve rod valve ring structure, the valve feeding quantitative mechanism, the quantitative mechanism receives the instruction of the central control system to control the opening of the fourth valve rod valve ring structure, and the material feeding quantitative mechanism feeds the material into the machine pressure chamber guide groove.

Preferably, the use method of the dosing mechanism comprises the following steps:

s601, adjusting the height of the quantitative ring, and changing the volume in the quantitative cup;

s602, closing the fourth valve rod valve ring structure, and sending a valve rod opening instruction to the third valve rod valve ring structure of the machine station holding unit;

s603, allowing the molten metal to flow into the quantitative cup body of the quantitative mechanism from the machine platform holding unit until the liquid level touches the liquid level sensor of the quantitative cup body;

s604, sending a signal after the liquid level sensor contacts the molten metal, immediately closing a valve ring structure of a fourth valve rod of the machine station holding chamber, and stopping the molten metal from flowing into the quantitative cup body;

s605, the machine sends a soup feeding instruction to a fourth valve rod valve ring structure in the quantitative mechanism, a valve rod is opened immediately, and molten metal in the quantitative mechanism flows into a guide groove of a pressure chamber of the machine through a guide groove at the lower part of the quantitative mechanism;

and S606, closing a fourth valve rod valve ring structure of the quantitative mechanism after the metal liquid in the quantitative mechanism flows out, repeating the step S602, and entering the next quantitative soup feeding circulation.

The power of the central smelting furnace combustion chamber is regulated by a frequency converter, namely, the central smelting furnace combustion chamber is divided into a plurality of gears from small to large or is continuously and steplessly regulated from small to large so as to regulate the molten metal discharging amount in unit time;

the central smelting furnace supplies molten metal to n groups of machines, and the total quantity of the molten metal required by all the machines in unit time is D = D1+ D2+ … … + Dn;

a maximum melt capacity per unit time of the central furnace Cmax > D;

each group of machine stations is provided with a machine station holding unit, the safe metal liquid storage amount Qsi, the maximum metal liquid storage amount Qmi and the metal liquid distribution lead period from the central melting furnace to the machine station holding unit are set as Lti, and a metal liquid replenishing point Ri = Qsi + Di x Lti of the machine station holding unit is calculated;

the total maintenance cost of the machine station holding unit to the molten metal pair is Hi, the single distribution cost of the central melting furnace to the machine station holding unit is Si, the required quantity of the molten metal in unit time is Di, and the economic distribution batch is Qi = (2 DiSi/Hi) ^0.5 through calculation

Compared with the prior art, the invention has the following beneficial effects:

1. the quantitative plug is fixed on the support, can move up and down relative to the quantitative cup body under the drive of external force, forms a variable volume with the lower part of the quantitative cup body, is provided with the liquid level sensor opposite to the position close to the height of the flow guide inlet of the quantitative cup, and controls the opening or closing of the valve ring structure of the fourth valve rod through the central control system, thereby realizing the circulation of quantitative soup feeding, accurate quantitative blanking and lower cost.

2. The transfer ladle discharging position, the machine station keeping unit, the quantifying mechanism and the machine station pressure chamber guide groove are arranged in a descending manner according to the spatial height, so that the molten metal can flow down in parallel under the action of gravity until flowing into the machine station pressure chamber guide groove.

3. The valve rod is formed into a hollow shape, a heating element is arranged in the valve rod, and therefore molten metal can be heated and can be prevented from being condensed between valve rod and valve ring.

4. The machine station holding unit is provided with a heating device and a temperature monitoring device so as to keep the molten metal within a preset temperature range.

5. The machine station holding unit can be selectively connected with a protective gas source with the pressure higher than the atmospheric pressure so as to provide the isolation protection of the molten metal and oxygen and prevent the oxidation of the molten metal to the maximum extent.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a dosing mechanism according to the present invention;

FIG. 3 is a flow chart of the invention in use;

description of reference numerals: the machine comprises a central control system 1, a central melting chamber 2, a central holding chamber 3, a first valve stem valve ring structure 4, a transfer bag 5, a second valve stem valve ring structure 6, a transfer structure 7, a guide rail 71, a moving trolley 72, a refining station 8, a machine table holding unit 9, a third valve stem valve ring structure 10, a quantifying mechanism 11, a quantifying cup 111, a quantifying cup diversion inlet 112, a support 113, a quantifying plug 114, a liquid level sensor 115, a quantifying plug control motor assembly 116, a fourth valve stem valve ring structure 12, a machine table pressure chamber guide groove 13 and a liquid level device 14.

Detailed Description

The details of the present invention will be described below with reference to the accompanying drawings and examples.

As shown in fig. 1-3, the present embodiment provides a pull-type smelting system with a quantitative function, which includes a central control system 1, a central melting chamber 2, a central holding chamber 3, a first valve stem valve ring structure 4, a transfer bag 5, a second valve stem valve ring structure 6, a transfer structure 7, a refining station 8, a machine holding unit 9, a third valve stem valve ring structure 10, a quantitative mechanism 11, a fourth valve stem valve ring structure 12, and a machine pressure chamber guide groove 13, wherein the central melting chamber 2 is connected to the central holding chamber 3, the central holding chamber 3 is connected to the transfer bag 5, the transfer bag 5 is controlled by the transfer structure 7 to transport sequentially through the refining station 8 to the machine holding unit 9, the machine holding unit 9 is connected to the quantitative mechanism 11, the quantitative mechanism 11 is connected to the machine pressure chamber guide groove 13, and the transfer bag 5 is connected to the machine pressure chamber guide groove 13, The machine station holding unit 9, the quantitative mechanism 11 and the machine station pressure chamber guide groove 13 are arranged in a descending manner according to the spatial height, the first valve rod valve ring structure 4, the second valve rod valve ring structure 6, the third valve rod valve ring structure 10, the fourth valve rod valve ring structure 12 and the transfer structure 7 are electrically connected with the central control system 1, the first valve rod valve ring structure 4 is arranged in the central holding chamber 3, the second valve rod valve ring structure 6 is arranged in the transfer bag 5, the third valve rod valve ring structure 10 is arranged in the machine station holding unit 9, and the fourth valve rod valve ring structure 12 is arranged in the quantitative mechanism 11.

Further, in order to monitor the molten metal positions in the central holding chamber 3, the transfer ladle 5 and the machine station holding unit 9 in real time, liquid level devices 14 are arranged on the central holding chamber 3, the transfer ladle 5 and the machine station holding unit 9, and the liquid level devices 14 are electrically connected with the central control system 1.

Further, in order to facilitate the transfer of the transfer ladle 5, the transfer structure 7 includes a guide rail 71 and a moving trolley 72, the moving trolley 72 slides in the guide rail 71, the lower end of the moving trolley 72 is connected with the transfer ladle 5, and the moving trolley 72 is electrically connected with the central control system 1. The central control system 1 drives and controls the moving trolley 72 to slide in the guide rail, and the transfer structure 7 is not limited to the transportation mode of the moving trolley 72 and the guide rail 71.

Further, the stem portions of the first stem valve ring structure 4, the second stem valve ring structure 6, the third stem valve ring structure 10 and the fourth stem valve ring structure 12 are provided as hollow structures, and heat generating elements are arranged inside the hollow structures. The metal liquid can be heated, and the metal liquid between the valve rod and the valve ring can be prevented from condensing.

Further, the quantitative mechanism 11 comprises a quantitative cup 111, a quantitative cup diversion inlet 112, a support 113, a quantitative plug 114, a liquid level sensor 115 and a quantitative plug control motor assembly 116, a quantitative cup diversion inlet 112 is arranged on one side of the quantitative cup body 111, the feeding level of the machine station keeping unit 9 is arranged opposite to the quantitative cup diversion inlet 112, the support 113 is disposed above the dosing cup 111, the dosing plug 114 is mounted on the bottom surface of the support 113 by a dosing plug control motor assembly 116, and the dosing plug 114 can move up and down with respect to the dosing cup 111, and the dosing plug 114 can close the dosing cup 111, the quantitative cup body 111 is also provided with a liquid level sensor 115, the liquid level sensor 115 is arranged at the position opposite to the height position of the quantitative cup diversion inlet 112, the liquid level sensor 115 is electrically connected with the central control system 1, and the lower end of the quantitative cup 111 is connected with the machine pressure chamber guide groove 13 through the fourth valve rod valve ring structure 12.

Further, the machine holding unit 9 is provided with a heating device and a temperature monitoring device.

Further, the machine station holding unit 9 is connected to a protective gas source higher than atmospheric pressure.

A use method of a pull-type smelting system with a quantitative function comprises the following steps:

s1, melting metal, controlling the central melting furnace to melt metal liquid through the central control system 1, and then enabling the metal liquid to flow from the central melting furnace to the central holding chamber 3;

s2, injecting the molten metal into the transfer bag 5 from the central holding chamber 3 by controlling the opening of the first valve rod valve ring structure 4 through the central control system 1;

s3, refining and purifying, namely transporting the transfer ladle 5 through the transfer structure 7, and performing refining and purifying treatment such as degassing, slagging and the like on the molten metal in the transfer ladle 5;

s4, transferring the transfer package 5 to a specified position, and transferring the transfer package 5 to the position and height of a specified machine station holding unit 9 through the transfer structure 7;

s5, discharging and feeding the material into the machine station keeping unit 9, wherein the transfer package 5 receives the instruction of the central control system 1 to control the second valve stem and valve ring structure 6 to be opened, and the valve discharges and feeds the material into the machine station keeping unit 9;

s6, a material feeding and metering mechanism 11 and a material discharging and machine pressure chamber guide groove 13, wherein a machine station holding unit 9 is connected with a central control system 1 to control the opening of a third valve rod valve ring structure 10 through an instruction, a valve is fed into the metering mechanism 11, the metering mechanism 11 is connected with the central control system 1 to control the opening of a fourth valve rod valve ring structure 12 through an instruction, and the material is fed into the machine pressure chamber guide groove 13.

Further, the use method of the quantitative mechanism 11 comprises the following steps:

s601, adjusting the height of the quantitative ring, and changing the volume in the quantitative cup;

s602, closing the fourth valve stem valve ring structure 12, and sending a valve stem opening instruction to the third valve stem valve ring structure 10 of the machine station holding unit 9;

s603, allowing the molten metal to flow into the quantitative cup 111 of the quantitative mechanism 11 from the machine platform holding unit 9 until the liquid level touches the liquid level sensor of the quantitative cup 111;

s604, sending a signal after the liquid level sensor contacts the molten metal, immediately closing the fourth valve rod valve ring structure 12 of the machine station holding chamber, and stopping the molten metal from flowing into the quantitative cup body 111;

s605, the machine sends a soup feeding instruction to the fourth valve rod valve ring structure 12 in the quantitative mechanism 11, the valve rod is opened immediately, and the molten metal in the quantitative mechanism 11 flows into the guide groove 13 of the pressure chamber of the machine through the guide groove at the lower part of the quantitative mechanism;

and S606, after the metal liquid in the quantitative mechanism 11 flows out, closing the fourth valve rod valve ring structure 12 of the quantitative mechanism 11, repeating the step S602, and entering the next quantitative soup feeding circulation.

The power of the combustion chamber of the central melting furnace can be adjusted by a frequency converter, namely the power can be divided into a plurality of gears from small to large, and can also be continuously and steplessly adjusted from small to large, so that the adjustment of the molten metal discharging amount in unit time can be realized;

the central smelting furnace supplies molten metal to n groups of machines, and the total quantity of the molten metal required by all the machines in unit time is D = D1+ D2+ … … + Dn;

a maximum melt capacity per unit time of the central furnace Cmax > D;

each group of machine stations is provided with a machine station holding unit, the safe metal liquid stock Qsi, the maximum metal liquid stock Qmi and the metal liquid distribution lead period from the central melting furnace to the local machine station holding unit are set as Lti, and the metal liquid replenishing point Ri = Qsi + Di x Lti can be calculated

The total maintenance cost of the machine station holding unit to the molten metal pair is Hi, the single distribution cost of the central melting furnace to the machine station holding unit is Si, the required quantity of the molten metal in unit time is Di, and the economic distribution batch is Qi = (2 DiSi/Hi) ^0.5 through calculation

Based on the pulling principle, the distribution unit distributes the metal liquid for each machine table in a linkage manner, and the comprehensive cost is optimal while the safe supply amount of the metal liquid is kept for each machine table.

The invention has the following characteristics:

1. the quantitative plug is fixed on the support, can move up and down relative to the quantitative cup body under the drive of external force, forms a variable volume with the lower part of the quantitative cup body, is provided with the liquid level sensor opposite to the position close to the height of the flow guide inlet of the quantitative cup, and controls the opening or closing of the valve ring structure of the fourth valve rod through the central control system, thereby realizing the circulation of quantitative soup feeding, accurate quantitative blanking and lower cost.

2. The transfer ladle discharging position, the machine station keeping unit, the quantifying mechanism and the machine station pressure chamber guide groove are arranged in a descending manner according to the spatial height, so that the molten metal can flow down in parallel under the action of gravity until flowing into the machine station pressure chamber guide groove.

3. The valve rod is formed into a hollow shape, a heating element is arranged in the valve rod, and therefore molten metal can be heated and can be prevented from being condensed between valve rod and valve ring.

4. The machine station holding unit is provided with a heating device and a temperature monitoring device so as to keep the molten metal within a preset temperature range.

5. The machine station holding unit can be selectively connected with a protective gas source with the pressure higher than the atmospheric pressure so as to provide the isolation protection of the molten metal and oxygen and prevent the oxidation of the molten metal to the maximum extent.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or through an intermediary, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.