CN110153401B - Granulation casting method - Google Patents

Granulation casting method Download PDF

Info

Publication number
CN110153401B
CN110153401B CN201910493574.XA CN201910493574A CN110153401B CN 110153401 B CN110153401 B CN 110153401B CN 201910493574 A CN201910493574 A CN 201910493574A CN 110153401 B CN110153401 B CN 110153401B
Authority
CN
China
Prior art keywords
crystallizer
casting
translation
support
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910493574.XA
Other languages
Chinese (zh)
Other versions
CN110153401A (en
Inventor
李立鸿
佘京鹏
周兵其
沈大伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shantou Huaxing Raoping Copper Industry Co ltd
SHANTOU HUAXING METALLURGICAL EQUIPMENT CO Ltd
Original Assignee
Shantou Huaxing Raoping Copper Industry Co ltd
SHANTOU HUAXING METALLURGICAL EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shantou Huaxing Raoping Copper Industry Co ltd, SHANTOU HUAXING METALLURGICAL EQUIPMENT CO Ltd filed Critical Shantou Huaxing Raoping Copper Industry Co ltd
Priority to CN201910493574.XA priority Critical patent/CN110153401B/en
Publication of CN110153401A publication Critical patent/CN110153401A/en
Application granted granted Critical
Publication of CN110153401B publication Critical patent/CN110153401B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/04—Stationary flat screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/04—Handling or stripping castings or ingots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A grain casting method comprising the steps of: (1) pouring liquid metal raw materials into a tundish of a casting device, and flowing into a solidification forming device below the discharge end of a casting pipe through the casting pipe; the liquid metal raw material flowing out of the discharge end of the casting pipe enters each forming groove of a crystallizer in a solidification forming device; (2) solidifying and forming, namely separating a casting and forming product which is solidified and formed from the crystallizer after the liquid metal raw material in the forming groove is solidified and formed, and dropping the casting and forming product which is separated from the crystallizer into a material receiving and conveying device positioned below the crystallizer; (3) and (5) receiving and screening. The granulation casting method is adopted for casting and molding, the obtained product has consistent granularity and high production efficiency, and the waste materials such as dust and the like generated in the production process are less, so that the waste can be reduced on one hand, and the pollution to the environment can be reduced on the other hand.

Description

Granulation casting method
Technical Field
The invention relates to a casting forming method, in particular to a grain casting method.
Background
At present, the casting molding of materials such as industrial silicon, iron alloy and the like is mainly cast by a cast iron ingot mold, and the method adopts a plurality of groups of fixed cast iron ingot molds, liquid metal raw materials (such as industrial silicon water or iron alloy water) are poured into the cast iron ingot molds for cooling, and then the processes of manual slag removal, manual crushing, manual secondary crushing (or jaw crushing) and the like are carried out. Because the output of a single ingot mould is small, a great number of ingot moulds are needed, and the occupied area is large; the subsequent process needs a large amount of manual work or machine crushing, has the defects of high dust rate, inconsistent specification of the crushed product, incapability of meeting the requirement of granularity, high labor intensity of workers, low working efficiency and the like, and can cause a large amount of waste. In addition, the cast iron ingot mold has short service life and needs to be replaced frequently, which increases the cost.
Disclosure of Invention
The invention aims to solve the technical problem of providing a granular casting method, which is used for casting and molding, can easily obtain casting and molding products (such as industrial silicon blocks or iron alloy blocks) with consistent granularity according with requirements, has high production efficiency and generates less waste materials such as dust and the like in the production process. The technical scheme is as follows:
a grain casting method, characterized by comprising the steps of:
(1) casting of
Pouring the liquid metal raw material into a tundish of a casting device, wherein the liquid metal raw material in the tundish flows out of a discharge hole of the tundish and then flows into a solidification forming device below a discharge end of a casting pipe through the casting pipe;
the solidification forming device comprises a crystallizer, a plurality of forming grooves are formed in the upper surface of the crystallizer, and liquid metal raw materials flowing out of the discharge end of the casting pipe enter the forming grooves in the upper surface of the crystallizer;
(2) solidification forming
The liquid metal raw material is gradually cooled in the crystallizer; after the liquid metal raw material in the forming groove is solidified and formed, separating the solidified and formed casting formed product from the crystallizer, and dropping the casting formed product separated from the crystallizer into a material receiving and conveying device below the crystallizer;
(3) material receiving screening
The receiving and conveying device receives the cast molding product and screens out chips and powder which are mixed in the cast molding product.
The liquid metal raw material can be industrial silicon water or iron alloy water, and correspondingly, the cast product is an industrial silicon block or iron alloy block.
The volume of the molding groove is designed according to the size of a cast molding product required to be obtained, and further crushing is not needed after demolding and separating.
Preferably, the casting device used in the step (1) further comprises a casting distribution chute, the casting distribution chute is positioned right below the tundish, a discharge port is arranged at the bottom of the tundish, the discharge port of the tundish is communicated with the casting distribution chute through a material conveying pipeline, and a switch valve for controlling the on-off of the material conveying pipeline is arranged on the material conveying pipeline; the casting pipe is fixedly connected with the casting diversion channel, and the feeding end of the casting pipe is communicated with the casting diversion channel; the liquid metal raw material in the tundish flows into the casting diversion channel through the material conveying pipeline, and the on-off of the material conveying pipeline (the conduction or the cutoff of the material conveying pipeline and the conduction time length) are controlled through the switch valve, so that whether the liquid metal raw material is injected into the crystallizer or not and the amount of the liquid metal raw material flowing into the crystallizer through the casting pipe are controlled.
Preferably, a plurality of solidification forming devices are arranged around the casting device, and the casting device further comprises a diversion trench rotation driving device capable of driving the casting diversion trench and the casting pipe to rotate around the tundish; the casting pipe can rotate around the tundish and sequentially casts liquid metal raw materials to the crystallizers of the solidification forming devices. After the casting pipe finishes casting the liquid metal raw material to each forming groove of the crystallizer in a certain solidification forming device, the casting pipe rotates by a certain angle and reaches the upper part of the crystallizer in the next solidification forming device and casts the liquid metal raw material to the crystallizer, and the crystallizer for finishing casting the liquid metal raw material enters a solidification stage, so that the multiple solidification forming devices work in parallel, and the production efficiency is further improved. Typically, the individual solidification-forming devices are evenly distributed around the casting device. When casting, only need hoist the ladle to pouring basket top and add liquid metal raw materials in to the pouring basket, through runner rotary driving device drive casting splitter box and casting pipe around the pouring basket rotation, can realize casting liquid metal raw materials to a plurality of crystallizers in turn, and heavy ladle and pouring basket all need not to remove according to the position of each crystallizer, the casting pipe has been cast first crystallizer and has been rotatory to next crystallizer, when the casting pipe has been cast last crystallizer in rotatory round, first crystallizer has usually been accomplished liquid metal solidification and pouring, the casting pipe can continue to cast first crystallizer like this, and it is repeated in this way. In addition, because the casting diversion channel and the casting pipe with smaller weight are generally only required to rotate, the diversion channel rotating driving device with smaller power can meet the requirement, and the positions of the casting diversion channel and the casting pipe can be switched more quickly.
In a more preferable scheme, the tundish is fixedly arranged on a support through a tundish support shaft which runs up and down, the lower end of the tundish support shaft is fixedly connected with the support, and the upper end of the tundish support shaft is fixedly connected with the bottom of the tundish; the rotating driving device of the diversion trench comprises a rotating driving motor, a rotating shaft sleeve and a rotating seat, wherein the rotating shaft sleeve is sleeved on the tundish supporting shaft and can rotate relative to the tundish supporting shaft, the rotating seat is fixedly arranged on the rotating shaft sleeve, and a power output shaft of the rotating driving motor is in transmission connection with the rotating shaft sleeve; the casting distribution chute is fixedly arranged on the rotary seat, the casting distribution chute is an annular groove surrounding the outer side of the tundish supporting shaft, the upper end of the material conveying pipeline is fixedly connected with the bottom of the tundish, and the lower end of the material conveying pipeline is inserted into the casting distribution chute. When casting, the tundish and the material conveying pipeline are fixed, the rotating shaft sleeve, the rotating seat, the casting diversion channel and the casting pipe rotate around the tundish supporting shaft under the driving of the rotary driving motor, and the casting diversion channel is an annular groove, the lower end of the material conveying pipeline is inserted into the casting diversion channel, so that the material conveying pipeline cannot hinder the rotation of the casting diversion channel and the casting pipe, and the casting diversion channel can still continuously receive the liquid metal raw material conveyed by the material conveying pipeline in the rotating process.
The power output shaft of the rotary driving motor is generally connected with a first speed reducer, the power output shaft of the rotary driving motor is connected with the power input end of the first speed reducer, and the power output end of the first speed reducer is in transmission connection with the rotary shaft sleeve; this drive mechanism between power take off end and the rotatory axle sleeve of first reduction gear can adopt chain drive (including drive sprocket, driven sprocket and chain, drive sprocket locates on the power take off end of first reduction gear, driven sprocket locates on the rotation axis cover and coincides with rotatory axle sleeve axis, drive sprocket, driven sprocket passes through the chain and connects), belt drive (including drive pulley, driven pulley and hold-in range, drive pulley locates on the power take off end of first reduction gear, driven pulley locates on the rotation axis cover and coincides with rotatory axle sleeve axis, drive pulley, driven pulley passes through the belt (is connected like the hold-in range)) or gear train.
In a more preferable scheme, the casting device further comprises a casting device base and a support lifting mechanism capable of driving the support to lift, and the support lifting mechanism is arranged on the casting device base; the pouring basket and the casting pipe can be lifted together, and the pouring basket and the casting pipe are positioned at the required height position through lifting control during casting.
The support lifting mechanism can adopt a worm gear screw rod lifter, a hydraulic lifter (such as a sleeve cylinder type hydraulic lifter) or a hydraulic cylinder and the like, the support lifting mechanism is fixedly arranged on a base of the casting device, and the power output end of the support lifting mechanism is connected with the support. For example: the support lifting mechanism comprises a first worm gear screw rod lifter, and the upper end of a screw rod of the first worm gear screw rod lifter is connected with the support. In order to enable the support to lift stably and enhance the bearing capacity of the support, a plurality of guide columns moving up and down are preferably fixedly mounted on the support, the upper end of each guide column is connected with the support, a plurality of guide holes moving up and down are formed in the base of the casting device, the guide holes are the same in number and correspond to the guide columns in one-to-one mode, and the guide columns are located in the guide holes and can move up and down along the guide holes.
In a more preferable scheme, the casting device further comprises a first flattening mechanism, the first flattening mechanism comprises a first flattening roller and a lifting translation mechanism capable of driving the first flattening roller to do lifting and translation motions; after a casting pipe finishes casting the liquid metal raw material to a certain crystallizer, the first flattening roller reaches a preset position and is attached to the upper surface of the crystallizer through the lifting translation mechanism, the first flattening roller rotates along with the rotation of the casting diversion channel and the casting pipe rotates around the tundish while the diversion channel rotation driving device drives the casting diversion channel and the casting pipe to sweep the liquid metal raw material on the upper surface of the crystallizer, so that the liquid metal raw material can enter each forming groove more easily, or after the casting pipe finishes casting the liquid metal raw material to a certain crystallizer, the first flattening roller reaches the preset position and is attached to the upper surface of the crystallizer through the lifting translation mechanism, then the first flattening roller translates (can translate in a reciprocating manner), the first flattening roller sweeps the liquid metal raw material on the upper surface of the crystallizer, and the liquid metal raw material can enter each forming groove more easily. In a concrete scheme, above-mentioned lift translation mechanism includes elevating system and translation mechanism, and elevating system installs on the roating seat, and translation mechanism installs on elevating system's power take off, and first flattening roller installs on translation mechanism's power take off. In another specific scheme, the lifting translation mechanism comprises a translation mechanism and a lifting mechanism, the translation mechanism is installed on the rotating seat, the lifting mechanism is installed on the power output end of the translation mechanism, and the first flattening roller is installed on the power output end of the lifting mechanism.
Preferably, the solidification forming device comprises a solidification forming device base, a crystallizer and a crystallizer bracket; the crystallizer is arranged on the upper side of the crystallizer support, a plurality of forming grooves are formed in the upper surface of the crystallizer, a cooling water channel is arranged in the crystallizer, and the cooling water channel is provided with a cooling water inlet and a cooling water outlet; the crystallizer support is rotatably connected with a solidification forming device base through a horizontal rotating shaft, and a crystallizer support turnover mechanism capable of driving the crystallizer support to rotate around the horizontal rotating shaft is arranged on the solidification forming device base; the crystallizer support turnover mechanism can drive the crystallizer support to rotate around the horizontal rotating shaft, and the included angles between the crystallizer support and the crystallizer and the horizontal plane are changed, so that the crystallizer is inclined or turned over for 180 degrees.
Preferably, the mold is made of a copper plate. The copper plate is preferably selected from a forged copper plate or a rolled copper plate, and the forged copper plate and the rolled copper plate are compact, so that the service life of the crystallizer is prolonged.
Preferably, the molding grooves on the upper surface of the crystallizer are uniformly distributed.
Preferably, the cross-sectional area of the molding groove is gradually reduced from top to bottom, and the size of the opening at the top of the molding groove is larger than that at the bottom of the molding groove. The forming groove can be in a shape of a truncated cone, a truncated pyramid, a cone, a pyramid or the like with a large upper part and a small lower part. The adoption of the forming groove with the cross section area gradually reduced from top to bottom is beneficial to the smooth separation of a cast and formed product from the crystallizer.
Preferably, the upper surface of the crystallizer and the inner wall of the forming groove are provided with wear-resistant alloy overlaying layers or ceramic coatings so as to enhance the high-temperature resistance and the wear resistance of the parts contacted with the liquid metal raw material and prolong the service life of the crystallizer. The weld overlay material forming the hardfacing layer may be NiCr-3 nickel-based alloy welding wire.
In a preferable scheme, the solidification forming device further comprises a vibrating device capable of driving the crystallizer to vibrate in a reciprocating mode relative to the crystallizer support, and the vibrating device enables the crystallizer to vibrate in a reciprocating mode so as to enable a solidified and formed product to be separated from the crystallizer.
In a more preferable scheme, the vibration device comprises a cam shaft and a vibration motor capable of driving the cam shaft to rotate, the cam shaft is rotatably arranged on the crystallizer support, at least one cam is arranged on the cam shaft, and the outline of each cam is in contact with the lower surface of the crystallizer; a plurality of reset springs are arranged between the crystallizer and the crystallizer bracket, and two ends of each reset spring are respectively connected with the crystallizer and the crystallizer bracket. The reset spring can adopt an extension spring or a compression spring, and the vibration motor, the cam and the reset spring are matched, so that the crystallizer can smoothly realize reciprocating vibration. In a specific scheme, the vibration motor is fixedly installed on the crystallizer support, and a power output shaft of the vibration motor is connected with one end of the cam shaft through a coupler.
In a more preferable scheme, a plurality of crystallizer guide columns are arranged on the crystallizer, and the crystallizer guide columns are vertical to the upper surface of the crystallizer; the crystallizer support is provided with a plurality of crystallizer guide sleeves, the crystallizer guide sleeves correspond to the crystallizer guide posts one by one, and the crystallizer guide posts are positioned in the crystallizer guide sleeves and can move along the crystallizer guide sleeves. The crystallizer can do reciprocating vibration in the vertical direction (the direction vertical to the upper surface of the crystallizer) by arranging the crystallizer guide sleeve and the crystallizer guide column.
In the preferred scheme, above-mentioned crystallizer support tilting mechanism includes upset motor and second reduction gear, upset motor and second reduction gear fixed mounting are on solidifying the forming device base, the upset motor passes through the second reduction gear, the gear train is connected with the transmission of horizontal rotating shaft, the power output shaft of upset motor is connected with the power input shaft transmission of second reduction gear, the first gear fixed mounting of gear train is on the power output shaft of second reduction gear, the last gear fixed mounting of gear train is on horizontal rotating shaft, horizontal rotating shaft is rotatable to be installed on solidifying the forming device base, crystallizer support and horizontal rotating shaft fixed connection. The turnover motor drives the horizontal rotating shaft to rotate relative to the solidification forming device base through the gear set, so that the crystallizer support rotates relative to the solidification forming device base around the horizontal rotating shaft, and the included angles of the crystallizer support and the crystallizer and the horizontal plane are changed.
In a preferable scheme, at least one second flattening mechanism is arranged on the crystallizer, the second flattening mechanism comprises a second flattening roller, a second flattening roller rotating shaft and a second flattening roller swinging driving motor, the second flattening roller rotating shaft is rotatably arranged on the crystallizer and is vertical to the upper surface of the crystallizer, one end of the second flattening roller is connected with the second flattening roller rotating shaft, the second flattening roller is in contact with the upper surface of the crystallizer, and a power output shaft of the second flattening roller swinging driving motor is in transmission connection with the second flattening roller rotating shaft; the second flattening roller swinging drive motor drives the second flattening roller rotating shaft to rotate, so that the second flattening roller swings around the second flattening roller rotating shaft, the second flattening roller clings to the upper surface of the crystallizer in the swinging process, the liquid metal raw material on the upper surface of the crystallizer is swept, and the liquid metal raw material is more uniformly distributed in each forming groove. The second flattening roll shaft is usually mounted at the edge of the mold.
In a preferred scheme, the material receiving and conveying device comprises a material receiving base, a scrap powder collecting hopper, a material receiving disc and a material guide groove; the scrap powder collecting hopper is fixedly arranged on the material receiving base, the material receiving disc is rotatably arranged on the material receiving base and is positioned right above the scrap powder collecting hopper, and the material receiving base is provided with a material receiving disc rotation driving device capable of driving the material receiving disc to rotate; the top of the scrap powder collecting hopper is provided with an annular protective wall, the annular protective wall surrounds the outer side of the material receiving disc, a first discharging notch is formed in the annular protective wall, and a feeding hole of the guide chute is communicated with the first discharging notch in the annular protective wall; the bottom of the receiving disc is provided with a plurality of sieve pores, and the side wall of the receiving disc is provided with a second discharging notch; the bottom of the scrap powder collecting hopper is provided with a scrap powder outlet; the material receiving and conveying devices are the same in number and correspond to the solidification forming devices one by one, and the material receiving and conveying devices are located below the corresponding solidification forming devices. Liquid metal raw materials (such as industrial silicon water or iron alloy water) are cast into a crystallizer, after solidification forming and separation from the crystallizer, obtained cast forming products (such as industrial silicon blocks or iron alloy blocks) fall into a material receiving and conveying device below the crystallizer, and the material receiving and conveying device receives the cast forming products and screens out scraps mixed in the cast forming products. The upper surface of crystallizer is equipped with a plurality of shaping recesses, and the size of volume of shaping recess designs according to the size of the casting shaping product that needs obtained, screens (screen out and mix with piece, powder wherein) by connecing material conveyor after the drawing of patterns to the casting shaping product that will screen out is carried to receiving material department.
After the receiving disc receives the cast molding products falling from the crystallizer, the receiving disc rotation driving device drives the receiving disc to rotate, the blocky cast molding products move outwards under the action of centrifugal force, and when the cast molding products reach the second discharging notch and the second discharging notch is aligned with the first discharging notch, the cast molding products can enter the guide chute, are output through the guide chute and are collected; when the mould is demoulded, a certain amount of chips and powder are generated and included in the cast product, and the chips and the powder pass through the sieve holes and the gap between the side wall of the receiving disc and the annular protective wall, enter the chip powder collecting hopper, are discharged through the chip powder outlet and are collected (a collecting container can be placed below the chip powder outlet). Adopt take-up pan rotary drive device drive take-up pan rotatory mode, can make massive cast moulding product remove to take-up pan edge fast to in second ejection of compact breach, the first ejection of compact breach entering baffle box, and the sustainable material of waiting to filter of adding when take-up pan is rotatory, be favorable to work efficiency's improvement.
The width of the gap between the side wall of the take-up pan and the annular guard wall is generally consistent with the aperture of the sieve pores, for example, 1 mm.
In more preferred scheme, above-mentioned take-up pan rotary drive device includes take-up pan rotary drive motor, take-up pan back shaft, take-up pan supports cover and take-up pan support, take-up pan back shaft sets up along vertical direction, take-up pan back shaft lower extreme and take-up base fixed connection, take-up pan supports the cover and cup joints in take-up pan back shaft upper end, take-up pan supports the cover and is connected with take-up pan back shaft upper end through the bearing, take-up pan support fixed mounting is on take-up pan back shaft, take-up pan fixed mounting is on take-up pan support, take-up pan rotary drive motor's power output shaft and take-up pan support cover transmission are connected. When the receiving tray rotation driving motor operates, the receiving tray support sleeve is driven to rotate around the receiving tray support shaft, and the receiving tray support and the receiving tray are driven to rotate together. The transmission mechanism between the power output shaft of the receiving plate rotation driving motor and the receiving plate support sleeve can adopt chain transmission or belt transmission.
In a further preferable scheme, a discharge channel is arranged in the upper part of the receiving tray support shaft, the upper end of the discharge channel is opened at the top surface of the receiving tray support shaft, and the lower end of the discharge channel is opened at the side surface of the receiving tray support shaft; the discharge channel is positioned under the receiving tray, and an opening at the upper end of the discharge channel is communicated with the sieve pores at the bottom of the receiving tray; a stirring rod is arranged in the discharge channel, and the upper end of the stirring rod is connected with the receiving disc bracket. The scraps and powder falling from the sieve holes at the bottom of the receiving tray can be discharged through the discharge channel when falling to the position of the receiving tray supporting shaft; the stirring rod stirs the material in the discharge passageway along with the take-up (stock) pan rotation, can prevent effectively that discharge passageway from blockking up.
More preferably, a discharge guide groove is arranged below the scrap powder outlet at the bottom of the scrap powder collecting hopper, and the discharge guide groove is gradually inclined downwards from one end to the other end; the material receiving disc support shaft is provided with a material discharging pipe on the outer side surface, the feeding end of the material discharging pipe is communicated with the lower end opening of the material discharging channel, and the material discharging pipe is gradually inclined downwards from the feeding end to the discharging end. A collecting container is arranged below the lower end of the discharge guide groove and the discharge end of the discharge pipe, and falling chips and powder can be collected.
In a more preferred scheme, an air inlet is formed in the bottom or the side wall of the guide chute, a fan is installed at the air inlet, and the fan blows air into the guide chute, so that the screened casting molding product can be cooled more quickly.
In a more preferable scheme, the receiving and conveying device further comprises a material guide hopper, the material guide hopper is provided with a top opening and a bottom opening, and the top opening is larger than the bottom opening; the bottom of the material guide hopper is fixedly connected with the top of the material receiving disc, and the top of the material receiving disc is provided with a material inlet communicated with the bottom opening of the material guide hopper. The guide hopper is provided with a large top opening, so that casting molding products falling from the crystallizer can be prevented from scattering outside the guide hopper, waste is reduced, and the cleanness of the workshop environment is ensured.
The granulation casting method is adopted for casting and molding, and small blocky or granular products (such as industrial silicon blocks or iron alloy blocks) with the granularity meeting the requirement can be obtained after casting, solidification and demolding, further crushing is not needed, and the product granularity is consistent, so the production efficiency is high, and the waste such as dust and the like generated in the production process is less, on one hand, the waste can be reduced, and on the other hand, the pollution to the environment can be reduced.
Drawings
FIG. 1 is a schematic structural view of a granular casting machine used in a preferred embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view showing the construction of a casting device in a granular casting machine used in a preferred embodiment of the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view showing the structure of a solidification molding apparatus in a granulation casting machine used in a preferred embodiment of the present invention (the mold is in an inclined state);
FIG. 6 is a view from the direction A of FIG. 5;
FIG. 7 is a cross-sectional view B-B of FIG. 6;
FIG. 8 is a schematic view (in a plan view) of the structure of a vibration device in a granular casting machine used in a preferred embodiment of the present invention.
Fig. 9 is a schematic structural view of a receiving and conveying device in a granulation casting machine used in the preferred embodiment of the present invention.
Detailed Description
Fig. 1 to 9 are schematic structural views of a granulation casting machine used in the present preferred embodiment and its constituent parts, by which the granulation casting method of the present embodiment is implemented.
In this example, the granulation casting method comprises the steps of:
(1) casting of
Pouring the liquid metal raw material into a tundish 11 of the casting device 1, wherein the liquid metal raw material in the tundish 11 flows out of a discharge hole of the tundish 11 and then flows into a solidification forming device 2 below a discharge end of a casting pipe 13 through the casting pipe 13;
the solidification forming device 2 comprises a crystallizer 22, a plurality of forming grooves 24 are arranged on the upper surface of the crystallizer 22, and liquid metal raw materials flowing out of the discharge end of the casting pipe 13 enter each forming groove 24 on the upper surface of the crystallizer 22;
(2) solidification forming
The liquid metal feed is gradually cooled in the crystallizer 22; after the liquid metal raw material in the forming groove 24 is solidified and formed, the solidified and formed cast product is separated from the crystallizer 22, and the cast product separated from the crystallizer 22 falls into the material receiving and conveying device 3 below the crystallizer 22;
(3) material receiving screening
The receiving and conveying device 3 receives the cast product and screens out the chips and powder which are mixed in the cast product.
As shown in fig. 1 and fig. 2, the granulation casting machine used in the present preferred embodiment includes a casting device 1, a plurality of solidification forming devices 2, and a plurality of receiving and conveying devices 3; the solidification forming devices 2 surround the casting device 1 (the solidification forming devices 2 are uniformly distributed around the casting device 1); the material receiving and conveying devices 3 are the same in number and correspond to the solidification forming devices 2 one by one, and the material receiving and conveying devices 3 are located below the corresponding solidification forming devices 2. In this embodiment, the number of the solidification forming devices 2 and the number of the material receiving and conveying devices 3 are eight. The eight material receiving and conveying devices 3 are also arranged around the casting device 1 (the material receiving and conveying devices 3 are uniformly distributed around the casting device 1), and the material receiving and conveying devices 3 are arranged at the periphery of the solidification forming device 2. The arrangement mode has a compact structure and is beneficial to saving the field.
As shown in fig. 3 and 4, the casting device 1 includes a tundish 11, a casting diversion trench 12 and at least one casting pipe 13 (in this embodiment, one casting pipe 13 is provided), the casting diversion trench 2 is located right below the tundish 11, a discharge port 14 is provided at the bottom of the tundish 11, the discharge port 14 of the tundish 11 is communicated with the casting diversion trench 12 through a delivery pipeline 15, and a switch valve 16 for controlling the on-off of the delivery pipeline 15 is provided on the delivery pipeline 15; the casting pipe 13 is fixedly connected with the casting diversion trench 12, and the feeding end of the casting pipe 13 is communicated with the casting diversion trench 12; the casting device 1 further comprises a runner rotation driving device capable of driving the casting runner 12 and the casting pipe 13 to rotate around the tundish 11.
In the embodiment, the tundish 11 is fixedly arranged on the support 18 through a tundish support shaft 17 which runs up and down, the lower end of the tundish support shaft 17 is fixedly connected with the support 18, and the upper end of the tundish support shaft 17 is fixedly connected with the bottom of the tundish 11; the rotation driving device of the diversion trench comprises a rotation driving motor 19, a rotation shaft sleeve 110 and a rotation base 111, wherein the rotation shaft sleeve 110 is sleeved on the tundish supporting shaft 17 and can rotate relative to the tundish supporting shaft 17 (the rotation shaft sleeve 110 is connected with the tundish supporting shaft 17 through a bearing), the rotation base 111 is fixedly arranged on the rotation shaft sleeve 110, and a power output shaft of the rotation driving motor 19 is in transmission connection with the rotation shaft sleeve 110; the casting distribution chute 12 is fixedly arranged on the rotary seat 111, the casting distribution chute 12 is an annular groove surrounding the outer side of the tundish supporting shaft 17, the upper end of the material conveying pipeline 15 is fixedly connected with the bottom of the tundish 11, and the lower end of the material conveying pipeline 15 is inserted into the casting distribution chute 12. When casting, the tundish 11 and the delivery conduit 15 are fixed, the rotating shaft sleeve 110, the rotating seat 111, the casting diversion channel 12 and the casting pipe 13 rotate around the tundish supporting shaft 17 under the driving of the rotating driving motor 19, because the casting diversion channel 12 is an annular groove and the lower end of the delivery conduit 15 is inserted into the casting diversion channel 12, the delivery conduit 15 cannot hinder the rotation of the casting diversion channel 12 and the casting pipe 13, and the casting diversion channel 12 can still continuously receive the liquid metal raw material conveyed by the delivery conduit 15 in the rotating process. The power output shaft of the rotary driving motor 19 is connected with a first speed reducer, the power output shaft of the rotary driving motor 19 is connected with the power input end of the first speed reducer, and the power output end of the first speed reducer is in transmission connection with the rotary shaft sleeve 110; this drive mechanism between power take off end and the rotatory axle sleeve of first reduction gear can adopt chain drive (including drive sprocket, driven sprocket and chain, drive sprocket locates on the power take off end of first reduction gear, driven sprocket locates on the rotation axis cover and coincides with rotatory axle sleeve axis, drive sprocket, driven sprocket passes through the chain and connects), belt drive (including drive pulley, driven pulley and hold-in range, drive pulley locates on the power take off end of first reduction gear, driven pulley locates on the rotation axis cover and coincides with rotatory axle sleeve axis, drive pulley, driven pulley passes through the belt (is connected like the hold-in range)) or gear train.
The casting device of the embodiment further comprises a casting device base 112 and a support lifting mechanism capable of driving the support 18 to lift, wherein the support lifting mechanism is arranged on the casting device base 112. The support lifting mechanism in this embodiment includes a first worm gear screw lifter 113, and the upper end of a screw 114 of the first worm gear screw lifter 113 is connected with the support 18. In order to enable the support 18 to ascend and descend more stably and enhance the bearing capacity of the support 18, a plurality of guide posts 115 which run up and down are fixedly installed on the support 18, the upper end of each guide post 115 is connected with the support 18, a plurality of guide holes 116 which run up and down are formed in the base 112 of the casting device, the number of the guide holes 116 is the same as that of the guide posts 115, the guide posts 116 correspond to the guide holes 116 one by one, and the guide posts 115 are located in the guide holes 116 and can move up and down along the guide holes 116. Thus, the tundish 11, the casting runner 12 and the casting pipe 13 can be lifted and lowered together, and the tundish 11, the casting runner 12 and the casting pipe 13 are positioned at desired height positions by lifting and lowering control during casting.
The casting device of this embodiment further includes a first flattening mechanism, and the first flattening mechanism includes a first flattening roller 117, and a lifting translation mechanism capable of driving the first flattening roller 117 to perform lifting and translation motions. In this embodiment, the lifting translation mechanism includes a translation mechanism and a lifting mechanism 118; the translation mechanism is composed of a first translation mechanism 119 and a second translation mechanism 120; the first translation mechanism 119 includes a first translation bracket 1191, a first translation motor 1192, a first translation screw 1193, a first translation guide rail, and a first translation base 1194, the first translation bracket 1191 is connected with the rotating base 111, the first translation motor 1192 and the first translation guide rail are both fixedly mounted on the first translation bracket 1191, the first translation guide rail is arranged along the horizontal direction, the first translation screw 1193 is rotatably mounted on the first translation bracket 1191 and is parallel to the first translation guide rail, one end of the first translation screw 1193 is in transmission connection with a power output shaft of the first translation motor 1191 (for example, one end of the first translation screw is connected with the power output shaft of the first translation motor through a coupler), the first translation base 1194 is mounted on the first translation guide rail and is in sliding fit with the first translation guide rail, and the first translation base 1194 is provided with a first translation screw hole or a first translation nut engaged with the first translation screw 1193; the second translation mechanism 120 includes a second translation bracket 1201, a second translation motor 1202, a second translation screw 1203, a second translation guide rail, and a second translation base 1203, the second translation bracket 1201 is connected with the first translation seat 1194, the second translation motor 1202 and the second translation guide rail are both fixedly mounted on the second translation bracket 1201, the second translation guide rail is parallel to the first translation guide rail, the second translation screw 1203 is rotatably mounted on the second translation bracket 1201 and is parallel to the second translation guide rail, one end of the second translation screw 1203 is in transmission connection with a power output shaft of the second translation motor 1202 (for example, one end of the second translation screw is connected with a power output shaft of the second translation motor through a coupler), the second translation seat 1204 is mounted on the second translation guide rail and is in sliding fit with the second translation guide rail, and the second translation seat 1204 is provided with a second translation screw hole or a second translation nut meshed with the second translation screw; the lifting mechanism 118 comprises a lifting support 1181, a lifting motor 1182, a lifting screw 1183, a lifting guide rail and a lifting seat 1184, the lifting support 1181 is connected with the second translation seat 1204, the lifting motor 1182 and the lifting guide rail are both fixedly mounted on the lifting support 1181, the lifting guide rail is arranged in the vertical direction, the lifting screw 1183 is rotatably mounted on the lifting support 1181 and is parallel to the lifting guide rail, one end of the lifting screw 1183 is in transmission connection with a power output shaft of the lifting motor 1182 (for example, one end of the lifting screw is connected with the power output shaft of the lifting motor through a coupler), the lifting seat 1184 is mounted on the lifting guide rail and is in sliding fit with the lifting guide rail, and the lifting seat 1184 is provided with a lifting screw hole or a lifting nut engaged with the lifting screw 1183; the first flattening roller 117 is mounted on the lifting carriage 1184. The first translation mechanism 119 and the second translation mechanism 120 together form a translation mechanism, the first translation motor 1192 and the second translation motor 1202 can operate simultaneously and can drive the lifting mechanism 118 and the first flattening roller 117 to translate faster (the first translation motor 1192 drives the first translation base 1194 and the second translation mechanism 120 to translate together along the first translation guide rail, while the second translation motor 1202 drives the second translation base 1204, the lifting mechanism 118 and the first flattening roller 117 to translate along the second translation guide rail); the lifting motor 1182 can drive the lifting base 1184 and the first flattening roller 117 to ascend or descend to a desired position.
As shown in fig. 5-8, the solidification molding apparatus 2 includes a solidification molding apparatus base 21, a mold 22, a mold support 23, and a vibrating apparatus capable of driving the mold 22 to vibrate reciprocally with respect to the mold support 23; the crystallizer 22 is arranged on the upper side of the crystallizer support 23, a plurality of forming grooves 24 are arranged on the upper surface of the crystallizer 22, a cooling water channel 25 is arranged in the crystallizer 22, and the cooling water channel 25 is provided with a cooling water inlet and a cooling water outlet; the crystallizer support 23 is rotatably connected with the solidification forming device base 21 through a horizontal rotating shaft 26, and a crystallizer support turnover mechanism capable of driving the crystallizer support 23 to rotate around the horizontal rotating shaft 26 is arranged on the solidification forming device base 21.
The volume of the forming groove 24 is designed according to the size of the product to be obtained (such as industrial silicon or iron alloy blocks), so that no further crushing is required after demoulding.
The mold 22 of the present embodiment is made of a copper plate, preferably a forged copper plate or a rolled copper plate.
Referring to fig. 6, the forming grooves 24 on the upper surface of the mold 22 are uniformly distributed.
Referring to fig. 7, the cross-sectional area of the forming groove 24 is gradually reduced from top to bottom, and the size of the opening at the top of the forming groove 24 is larger than that at the bottom of the forming groove 24. The molding groove 24 may be in the shape of a truncated cone, a truncated pyramid, a cone, a pyramid, or the like. The adoption of the forming groove 24 with the cross section area gradually reduced from top to bottom is beneficial to the smooth separation of the cast and formed product from the crystallizer 22. A hardfacing layer 27 (or ceramic coating) is provided on the upper surface of the mold 22 and on the inner walls of the forming grooves 24 to enhance the high temperature and wear resistance of those portions in contact with the liquid metal feedstock. The surfacing material forming the wear-resistant alloy surfacing layer 27 is NiCr-3 nickel-based alloy welding wire.
Referring to fig. 5 and 8, in the present embodiment, the vibration device includes a cam shaft 28 and a vibration motor 29 capable of driving the cam shaft 28 to rotate, the cam shaft 28 is rotatably mounted on the mold support 23, a plurality of cams 210 are mounted on the cam shaft 28, and the outer contour of each cam 210 contacts with the lower surface of the mold 22; a plurality of reset springs 211 are arranged between the crystallizer 22 and the crystallizer support 23, and two ends of each reset spring 211 are respectively connected with the crystallizer 22 and the crystallizer support 23. The return spring 211 is an extension spring. The vibration motor 29 is fixedly arranged on the crystallizer bracket 23, and a power output shaft of the vibration motor 29 is connected with one end of the cam shaft 28 through a coupling 212. A plurality of crystallizer guide columns 213 are arranged on the crystallizer 22, and the crystallizer guide columns 213 are vertical to the upper surface of the crystallizer 22; the mold support 23 is provided with a plurality of mold guide sleeves 214, the mold guide sleeves 214 correspond to the mold guide posts 213 one by one, and the mold guide posts 213 are located in the mold guide sleeves 214 and can move along the mold guide sleeves 214. By providing the mold guide 214 and the mold guide 213, the mold 22 can be vibrated back and forth in the vertical direction (the direction perpendicular to the upper surface of the mold 22).
The crystallizer support turnover mechanism comprises a turnover motor 215 and a second speed reducer 221, the turnover motor 215 and the second speed reducer 221 are fixedly installed on the solidification forming device base 21, the turnover motor 215 is in transmission connection with the horizontal rotating shaft 26 through the second speed reducer 221, a power output shaft of the turnover motor 215 is in transmission connection with a power input shaft of the second speed reducer 221, a first-stage gear of the gear set 216 is fixedly installed on the power output shaft of the second speed reducer 221, a last-stage gear of the gear set 216 is fixedly installed on the horizontal rotating shaft 26, the horizontal rotating shaft 26 is rotatably installed on the solidification forming device base 1, and the crystallizer support 23 is fixedly connected with the horizontal rotating shaft 26.
Two second flattening mechanisms are arranged on the crystallizer 22, each second flattening mechanism comprises a second flattening roller 219, a second flattening roller rotating shaft 220 and a second flattening roller swinging drive motor (not shown in the figure), the second flattening roller rotating shaft 220 is rotatably installed on the crystallizer 22 and is perpendicular to the upper surface of the crystallizer 22, one end of each second flattening roller 219 is connected with the second flattening roller rotating shaft 220, the second flattening rollers 219 are in contact with the upper surface of the crystallizer 22, and a power output shaft of each second flattening roller swinging drive motor is in transmission connection with the second flattening roller rotating shaft 220. The second platen roller 220 is installed at an edge portion of the mold 22.
As shown in fig. 9, the receiving and conveying device 3 includes a receiving base 31, a scrap powder collecting hopper 32, a receiving tray 33, and a material guiding chute 34; the scrap powder collecting hopper 32 is fixedly arranged on the material receiving base 31, the material receiving tray 33 is rotatably arranged on the material receiving base 31 and is positioned right above the scrap powder collecting hopper 32, and the material receiving base 31 is provided with a material receiving tray rotation driving device capable of driving the material receiving tray 33 to rotate; the top of the scrap powder collecting hopper 32 is provided with an annular protective wall 35, the annular protective wall 35 surrounds the outer side of the receiving tray 33, a first discharging notch 36 is formed in the annular protective wall 35, and a feeding hole 37 of the guide chute 34 is communicated with the first discharging notch 36 in the annular protective wall 35; the bottom of the receiving tray 33 is provided with a plurality of sieve holes 38, and the side wall of the receiving tray 33 is provided with a second discharging notch 39; the bottom of the crumb powder collecting hopper 32 is provided with a crumb powder outlet 310. The receiving tray 33 of the receiving and conveying device 3 is positioned below the crystallizer 22 of the corresponding solidification forming device 2.
The width of the gap 311 between the side wall of the take-up pan 33 and the annular guard wall 35 is generally the same as the size of the holes of the sieve holes 38, for example, 1 mm.
In this embodiment, the receiving tray rotation driving device includes a receiving tray rotation driving motor 312, a receiving tray support shaft 313, a receiving tray support sleeve 314 and a receiving tray support 315, the receiving tray support shaft 313 is disposed along the vertical direction, the lower end of the receiving tray support shaft 313 is fixedly connected to the receiving base 1, the receiving tray support sleeve 314 is sleeved on the upper end of the receiving tray support shaft 313, the receiving tray support sleeve 314 is connected to the upper end of the receiving tray support shaft 313 through a bearing, the receiving tray support 315 is fixedly mounted on the receiving tray support sleeve 314, the receiving tray 33 is fixedly mounted on the receiving tray support 315, and a power output shaft of the receiving tray rotation driving motor 312 is in transmission connection with the receiving tray support sleeve 314. When the receiving tray rotation driving motor 312 operates, the receiving tray support sleeve 314 is driven to rotate around the receiving tray support shaft 313, and the receiving tray support 315 and the receiving tray 33 are driven to rotate together. The transmission mechanism between the power output shaft of the take-up pan rotary drive motor 312 and the take-up pan support sleeve 314 is a chain transmission mechanism 316 (the chain transmission mechanism 316 comprises a driving sprocket, a driven sprocket and a chain; the take-up pan rotary drive motor 312 is usually in transmission connection with the driving sprocket through a speed reducer, the driving sprocket can be installed on the power output shaft of the speed reducer, the driven sprocket is installed on the take-up pan support sleeve 314, and the chain connects the driving sprocket and the driven sprocket).
A discharge channel 317 is arranged in the upper part of the receiving tray support shaft 313, the upper end of the discharge channel 317 is opened on the top surface of the receiving tray support shaft 313, and the lower end of the discharge channel 317 is opened on the side surface of the receiving tray support shaft 313; the discharge channel 317 is positioned right below the receiving tray 33, and an opening at the upper end of the discharge channel 317 is communicated with the sieve holes 38 at the bottom of the receiving tray 33; the discharge channel 317 is provided with a stirring rod 318, and the upper end of the stirring rod 318 is connected with the receiving tray bracket 315. The stirring rod 318 rotates along with the receiving tray bracket 315 and the receiving tray 33 to stir the materials in the discharge channel 317, so that the blockage of the discharge channel 317 can be effectively prevented.
A discharge guide groove 319 is provided below the chip powder outlet 310 at the bottom of the chip powder collecting hopper 32, and the discharge guide groove 319 is gradually inclined downward from one end to the other end thereof; the material receiving disc support shaft 313 is provided with a material discharging pipe 320 on the outer side surface, the material feeding end of the material discharging pipe 320 is communicated with the lower end opening of the material discharging channel 317, and the material discharging pipe 320 is gradually inclined downwards from the material feeding end to the material discharging end.
In this embodiment, an air inlet 321 is disposed at the bottom or on the side wall of the material guiding chute 34, a fan 322 is installed at the air inlet 321, and the fan 322 blows air into the material guiding chute 34, so as to accelerate cooling of the screened cast product.
The receiving and conveying device of this embodiment further includes a material guiding hopper 326, wherein the material guiding hopper 326 has a top opening and a bottom opening, and the top opening is larger than the bottom opening; the bottom of the material guide hopper 326 is fixedly connected with the top of the receiving tray 33, and the top of the receiving tray 33 is provided with a feeding hole communicated with the bottom opening of the material guide hopper 326. The guide hopper 326 is provided with a large top opening, so that the cast product falling from the crystallizer can be prevented from scattering outside the guide hopper.
The respective steps of the above-mentioned granulation casting method will be further described below.
The casting process in the step (1) comprises the following specific steps:
the tundish 11 is used for accommodating a liquid metal raw material to be cast and formed, and the liquid metal raw material (such as industrial silicon water or iron alloy water) in the ladle is poured into the tundish 11 of the casting device during casting and forming; the liquid metal material in the tundish 11 flows into the casting runner 12 through the delivery pipe 15 and then flows into the crystallizer 22 of the solidification forming device 2 below the discharge end of the casting pipe 13 through the casting pipe 13. The on-off of the feed line 15 (the on-off of the feed line 15 and the duration of the on-off operation) is controlled by the on-off valve 16, so as to control whether or not to feed the liquid metal material into the mold 22 and the amount of the liquid metal material flowing into the mold 22 through the casting pipe 13. The first worm gear screw lifter 113 can drive the tundish 11, the casting diversion channel 12 and the casting pipe 13 to lift together, and before casting, the tundish 11 and the casting pipe 13 are adjusted to required height positions through the worm gear screw lifter 113 according to the height position of the crystallizer 22.
The casting diversion channel 12 and the casting pipe 13 are driven to rotate around the tundish 11 by the diversion channel rotation driving device, and the casting pipe 13 can sequentially cast liquid metal raw materials to the crystallizers 22 of the solidification forming devices 2; after the casting pipe 13 finishes casting the liquid metal raw material into each forming groove 24 of a certain crystallizer 22, the casting pipe 13 rotates a certain angle and reaches the upper part of the crystallizer 22 of the next solidification forming device 2 and casts the liquid metal raw material into the crystallizer 22, and the crystallizer 22 which finishes casting the liquid metal raw material enters the solidification stage of the liquid metal raw material, so that the multiple solidification forming devices 2 work in parallel, which is beneficial to further improving the production efficiency. One casting device 1 is matched with the eight solidification forming devices 2, liquid metal raw materials are cast on the eight solidification forming devices 2 in sequence by rotating a circle, and then the next casting forming operation cycle is started.
After the casting pipe 13 finishes casting the liquid metal raw material into a certain mold 22, the first flattening rollers 117 are made to reach a predetermined position and abut against the upper surface of the mold 22 by the elevating and translating mechanism, and the first flattening rollers 117 rotate and sweep the liquid metal raw material on the upper surface of the mold 22 (in this case, the first flattening rollers 117 are parallel to the first translating screws 1193) while the pouring diverter 12 and the casting pipe 13 are driven by the diverter chute rotation driving device to rotate around the tundish 11, so that the liquid metal raw material can enter into each forming groove 24 more easily. Alternatively, after the casting pipe 13 finishes casting the liquid metal raw material into a certain mold 22, the first leveling roller 117 is moved to a predetermined position by the elevating and translating mechanism and is attached to the upper surface of the mold 22, and then the first leveling roller 117 is translated (reciprocally translated) to sweep the liquid metal raw material on the upper surface of the mold 22 (in this case, the first leveling roller 117 is perpendicular to the first translation screw 1193), so that the liquid metal raw material can be more easily introduced into each forming groove 24.
Secondly, the concrete process of the solidification molding in the step (2) is as follows:
the crystallizer support turning mechanism can drive the crystallizer support 23 to rotate around the horizontal rotating shaft 26 (the turning motor 215 drives the horizontal rotating shaft 26 to rotate relative to the solidification forming device base 21 through the gear set 216, so that the crystallizer support 23 rotates around the horizontal rotating shaft 26 relative to the solidification forming device base 21), and can change the included angle between the crystallizer support 23 and the crystallizer 22 and the horizontal plane (for example, the upper surface of the crystallizer 22 is parallel to the horizontal plane, or the upper surface of the crystallizer 22 is inclined by a certain angle). The vibrating device can vibrate the mold 22 back and forth to urge the solidified product (such as industrial silicon or iron alloy) out of the mold 22.
When casting molding is performed, firstly, the upper surface of the crystallizer 22 is parallel to the horizontal plane (as shown in the state of the solidification molding device 2-2 in fig. 1), or the crystallizer 22 is inclined at a small angle (for example, the included angle between the upper surface of the crystallizer 22 and the horizontal plane is 3-10 degrees); after the liquid metal material (such as industrial silicon water or iron alloy water) flows into the crystallizer 22, the liquid metal material is gradually cooled in the crystallizer 22; after the liquid metal raw material in the forming groove 24 is solidified and formed, the crystallizer support turnover mechanism drives the crystallizer support 23 to rotate upwards around the horizontal rotating shaft, so that the crystallizer 22 is inclined (the inclination angle is usually 30-60 degrees), and the inclined state is kept (as shown in the state of a solidification forming device 2-1 in fig. 1); then, the vibrating device is started to make the crystallizer 22 vibrate back and forth (the vibrating motor 29, the cam 210 and the return spring 211 are matched to make the crystallizer 22 vibrate back and forth smoothly), so that the solidified product is separated from the crystallizer 22, and the product separated from the crystallizer 22 falls into the receiving and conveying device below the crystallizer 22. By introducing cooling water into the cooling water passage 25, the heat of the crystallizer 22 can be taken away, and the crystallizer 22 and the liquid metal raw material thereon are cooled, so that the solidification of the liquid metal raw material is accelerated.
After the liquid metal material (e.g., industrial silicon water or ferrous metal water) flows into the mold 22, the second leveling roller swing driving motor drives the second leveling roller rotating shaft 220 to rotate, so that the second leveling roller 219 swings around the second leveling roller rotating shaft 220, and the second leveling roller 220 abuts against the upper surface of the mold 22 during the swing process, and sweeps the liquid metal material on the upper surface of the mold 22, so that the liquid metal material is more uniformly distributed in each forming groove 24.
Thirdly, the concrete process of material receiving and screening in the step (3) is as follows:
liquid metal raw materials (such as industrial silicon water or iron alloy water) are cast into a crystallizer, after solidification and forming and separation from the crystallizer, obtained cast forming products (such as industrial silicon blocks or iron alloy blocks) fall into a material receiving and conveying device 3 positioned below the crystallizer 22, and the material receiving and conveying device 3 receives the cast forming products and screens out scraps mixed in the cast forming products.
After the receiving tray 33 receives the cast product falling from the crystallizer 22 (after the cast product falling from the crystallizer 22 falls, the cast product enters the receiving tray 33 through the material guiding hopper 326), the receiving tray rotation driving device drives the receiving tray 33 to rotate, the blocky cast product moves outwards under the action of centrifugal force, when the cast product reaches the position of the second discharging notch 39 and the second discharging notch 39 is aligned with the first discharging notch 36, the cast product can enter the material guiding groove 34, is output to the belt conveyor 324 through the material guiding groove 34, and is sent to the material receiving position by the belt conveyor 324 for collection.
When the mold is removed, some chips and powder are generated and included in the cast product, and the chips and powder pass through the sieve holes 38 and the gap 311 between the side wall of the take-up pan 33 and the annular guard wall 35, enter the chip and powder collecting hopper 32, and are discharged through the chip and powder outlet 310 and the discharge guide 319. The scraps and powder falling from the screen holes 38 at the bottom of the receiving tray 33 can be discharged through the discharge channel 317 and the discharge pipe 320 when falling to the position of the receiving tray support shaft 313. A collection container 325 may be placed at the lower end of the discharge chute 319 and below the discharge end of the discharge tube 320 to collect the falling debris and powder.
The granulating and pouring machine of the embodiment is configured with two belt conveyors 4, each belt conveyor 4 corresponds to four material receiving and conveying devices 3, and the discharge port 324 of the material guide chute 34 in each material receiving and conveying device 3 is located above the corresponding belt conveyor 4. The screened casting molding products fall onto the belt conveyor 4 through the material guide groove 34, and the casting molding products screened by the material receiving conveying devices 3 are intensively conveyed to the material receiving part 5 by the belt conveyor 4.
The granulation casting method has high production efficiency, and the industrial silicon casting molding of about 100t per day is required to be finished by taking the industrial silicon enterprise parameters of 2 33000KVA submerged arc furnaces as reference. By adopting the granulation casting machine, the industrial silicon water filled in each crystallizer groove is 200kg, the casting time of the casting pipe which rotates for one circle is about 10min, the casting time required by 6t of a ladle is approximately equal to 6/(0.2 x 8). times.10 min =37.5min, namely, the granulation casting operation can be finished in about 40min by 6t of each discharge, the interval between every two adjacent casting operation periods is 30min as equipment maintenance, and then the next casting molding operation period is started. The weight of the granulated casting molding can be finished in one day, (1440min/70min) × 6t =123t, one granulated casting machine can meet the industrial silicon production requirements of 2 33000KVA submerged arc furnaces, and the design reservation is provided with 20 percent of allowance. If the operating days per year are 330 days, the designed capacity of the granulation casting machine is about 3.3 ten thousand tons.
In other embodiments, the crystallizer support turnover mechanism can drive the crystallizer support to rotate around the horizontal rotating shaft, and the position is switched between the following two positions: in one position, the upper surface of the crystallizer is parallel to the horizontal plane, and liquid metal raw materials (such as industrial silicon water or iron alloy water) flow into the crystallizer; after the liquid metal raw material in the forming groove is solidified and formed, the liquid metal raw material is switched to another position, the upper surface of the crystallizer faces downwards, and the solidified and formed product can be separated from the crystallizer under the action of gravity (the vibrating device can be started to enable the solidified and formed product to be separated from the crystallizer more easily).

Claims (10)

1. A grain casting method, characterized by comprising the steps of:
(1) casting of
Pouring the liquid metal raw material into a tundish of a casting device, wherein the liquid metal raw material in the tundish flows out of a discharge hole of the tundish and then flows into a solidification forming device below a discharge end of a casting pipe through the casting pipe;
the casting device also comprises a casting shunt trough, the casting shunt trough is positioned right below the tundish, a discharge port is arranged at the bottom of the tundish, and the discharge port of the tundish is communicated with the casting shunt trough; the casting pipe is fixedly connected with the casting diversion channel, and the feeding end of the casting pipe is communicated with the casting diversion channel;
the casting device also comprises a diversion channel rotation driving device which can drive the casting diversion channel and the casting pipe to rotate around the tundish; the casting pipe can rotate around the tundish and sequentially casts liquid metal raw materials to the crystallizers of the solidification forming devices;
the solidification forming device comprises a crystallizer, a plurality of forming grooves are formed in the upper surface of the crystallizer, and liquid metal raw materials flowing out of the discharge end of the casting pipe enter the forming grooves in the upper surface of the crystallizer;
the casting device further comprises a first flattening mechanism, the first flattening mechanism comprises a first flattening roller and a lifting translation mechanism capable of driving the first flattening roller to do lifting and translation motions;
after the casting pipe finishes casting the liquid metal raw material to a certain crystallizer, the first flattening roller reaches a preset position and is attached to the upper surface of the crystallizer through the lifting translation mechanism, and the first flattening roller rotates along with the rotation of the casting diversion groove and the casting pipe to sweep the liquid metal raw material on the upper surface of the crystallizer while the diversion groove rotation driving device drives the casting diversion groove and the casting pipe to rotate around the tundish, so that the liquid metal raw material can enter each forming groove more easily; or after the casting pipe finishes casting the liquid metal raw material to a certain crystallizer, the first flattening roller reaches a preset position and is attached to the upper surface of the crystallizer through the lifting translation mechanism, then the first flattening roller translates, and the first flattening roller sweeps the liquid metal raw material on the upper surface of the crystallizer, so that the liquid metal raw material can enter each forming groove more easily;
(2) solidification forming
The liquid metal raw material is gradually cooled in the crystallizer; after the liquid metal raw material in the forming groove is solidified and formed, separating the solidified and formed casting formed product from the crystallizer, and dropping the casting formed product separated from the crystallizer into a material receiving and conveying device below the crystallizer;
the solidification forming device comprises a solidification forming device base, a crystallizer and a crystallizer bracket; the crystallizer is arranged on the upper side of the crystallizer support, the crystallizer support is rotatably connected with the solidification forming device base through a horizontal rotating shaft, and a crystallizer support turnover mechanism capable of driving the crystallizer support to rotate around the horizontal rotating shaft is arranged on the solidification forming device base; the crystallizer support turnover mechanism can drive the crystallizer support to rotate around a horizontal rotating shaft, and the included angles between the crystallizer support and the crystallizer and the horizontal plane are changed, so that the crystallizer is inclined or turned over by 180 degrees;
the solidification forming device also comprises a vibration device which can drive the crystallizer to vibrate in a reciprocating manner relative to the crystallizer bracket, and the crystallizer is vibrated in a reciprocating manner by the vibration device to promote the solidified and formed product to be separated from the crystallizer;
(3) material receiving screening
The receiving and conveying device receives the cast molding product and screens out chips and powder which are mixed in the cast molding product.
2. The granulated casting method as claimed in claim 1, wherein: the discharge port of the tundish is communicated with the casting distribution chute through a material conveying pipeline, and a switch valve for controlling the on-off of the material conveying pipeline is arranged on the material conveying pipeline; the liquid metal raw material in the tundish flows into the casting diversion channel through the material conveying pipeline, and the on-off of the material conveying pipeline is controlled by the switch valve, so that whether the liquid metal raw material is injected into the crystallizer or not and the amount of the liquid metal raw material flowing into the crystallizer through the casting pipe are controlled.
3. The granulated casting method as claimed in claim 2, wherein: the tundish is fixedly arranged on a support through a tundish support shaft which runs up and down, the lower end of the tundish support shaft is fixedly connected with the support, and the upper end of the tundish support shaft is fixedly connected with the bottom of the tundish; the rotating driving device of the diversion trench comprises a rotating driving motor, a rotating shaft sleeve and a rotating seat, wherein the rotating shaft sleeve is sleeved on the tundish supporting shaft and can rotate relative to the tundish supporting shaft, the rotating seat is fixedly arranged on the rotating shaft sleeve, and a power output shaft of the rotating driving motor is in transmission connection with the rotating shaft sleeve; the casting distribution chute is fixedly arranged on the rotary seat, the casting distribution chute is an annular groove surrounding the outer side of the tundish supporting shaft, the upper end of the material conveying pipeline is fixedly connected with the bottom of the tundish, and the lower end of the material conveying pipeline is inserted into the casting distribution chute.
4. The granulated casting method as claimed in claim 2, wherein: the casting device also comprises a casting device base and a support lifting mechanism capable of driving the support to lift, and the support lifting mechanism is arranged on the casting device base; the pouring basket and the casting pipe can be lifted together, and the pouring basket and the casting pipe are positioned at the required height position through lifting control during casting.
5. The granulated casting method as claimed in claim 4, wherein: the support lifting mechanism comprises a first worm gear screw lifter, and the upper end of a screw of the first worm gear screw lifter is connected with the support;
the lifting translation mechanism comprises a translation mechanism and a lifting mechanism; the translation mechanism consists of a first translation mechanism and a second translation mechanism; the first translation mechanism comprises a first translation support, a first translation motor, a first translation screw rod, a first translation guide rail and a first translation seat, the first translation support is connected with the rotating seat, the first translation motor and the first translation guide rail are fixedly mounted on the first translation support, the first translation guide rail is arranged along the horizontal direction, the first translation screw rod is rotatably mounted on the first translation support and is parallel to the first translation guide rail, one end of the first translation screw rod is in transmission connection with a power output shaft of the first translation motor, the first translation seat is mounted on the first translation guide rail and is in sliding fit with the first translation guide rail, and a first translation screw hole or a first translation nut meshed with the first translation screw rod is arranged on the first translation seat; the second translation mechanism comprises a second translation support, a second translation motor, a second translation screw rod, a second translation guide rail and a second translation seat, the second translation support is connected with the first translation seat, the second translation motor and the second translation guide rail are fixedly arranged on the second translation support, the second translation guide rail is parallel to the first translation guide rail, the second translation screw rod is rotatably arranged on the second translation support and is parallel to the second translation guide rail, one end of the second translation screw rod is in transmission connection with a power output shaft of the second translation motor, the second translation seat is arranged on the second translation guide rail and is in sliding fit with the second translation guide rail, and a second translation screw hole or a second translation nut meshed with the second translation screw rod is arranged on the second translation seat; the lifting mechanism comprises a lifting support, a lifting motor, a lifting screw, a lifting guide rail and a lifting seat, the lifting support is connected with the second translation seat, the lifting motor and the lifting guide rail are fixedly mounted on the lifting support, the lifting guide rail is arranged along the vertical direction, the lifting screw is rotatably mounted on the lifting support and is parallel to the lifting guide rail, one end of the lifting screw is in transmission connection with a power output shaft of the lifting motor, the lifting seat is mounted on the lifting guide rail and is in sliding fit with the lifting guide rail, and the lifting seat is provided with a lifting screw hole or a lifting nut meshed with the lifting screw; the first flattening roller is arranged on the lifting seat.
6. The granulated casting method as claimed in any one of claims 1 to 5, wherein: a cooling water channel is arranged in the crystallizer, and is provided with a cooling water inlet and a cooling water outlet; the crystallizer is made of a copper plate; the copper plate is a forged copper plate or a rolled copper plate.
7. The granulated casting method as claimed in claim 6, wherein: the molding grooves on the upper surface of the crystallizer are uniformly distributed; the cross section area of the forming groove is gradually reduced from top to bottom, and the size of an opening at the top of the forming groove is larger than that of the bottom of the forming groove; a wear-resistant alloy surfacing layer or a ceramic coating is arranged on the upper surface of the crystallizer and the inner wall of the forming groove;
the vibration device comprises a cam shaft and a vibration motor capable of driving the cam shaft to rotate, the cam shaft is rotatably arranged on the crystallizer support, at least one cam is arranged on the cam shaft, and the outline of each cam is in contact with the lower surface of the crystallizer; a plurality of reset springs are arranged between the crystallizer and the crystallizer bracket, and two ends of each reset spring are respectively connected with the crystallizer and the crystallizer bracket;
the crystallizer is provided with a plurality of crystallizer guide columns, and the crystallizer guide columns are vertical to the upper surface of the crystallizer; the crystallizer support is provided with a plurality of crystallizer guide sleeves, the crystallizer guide sleeves correspond to the crystallizer guide posts one by one, and the crystallizer guide posts are positioned in the crystallizer guide sleeves and can move along the crystallizer guide sleeves;
the vibration motor is fixedly installed on the crystallizer support, and a power output shaft of the vibration motor is connected with one end of the cam shaft through a coupler.
8. The granulated casting method as claimed in claim 6, wherein: the crystallizer support turnover mechanism comprises a turnover motor and a second speed reducer, the turnover motor and the second speed reducer are fixedly mounted on a solidification forming device base, the turnover motor is in transmission connection with a horizontal rotating shaft through the second speed reducer and a gear set, a power output shaft of the turnover motor is in transmission connection with a power input shaft of the second speed reducer, a first-stage gear of the gear set is fixedly mounted on a power output shaft of the second speed reducer, a last-stage gear of the gear set is fixedly mounted on the horizontal rotating shaft, the horizontal rotating shaft is rotatably mounted on the solidification forming device base, and a crystallizer support is fixedly connected with the horizontal rotating shaft;
the crystallizer is provided with at least one second flattening mechanism, the second flattening mechanism comprises a second flattening roller, a second flattening roller rotating shaft and a second flattening roller swinging driving motor, the second flattening roller rotating shaft is rotatably arranged on the crystallizer and is vertical to the upper surface of the crystallizer, one end of the second flattening roller is connected with the second flattening roller rotating shaft, the second flattening roller is in contact with the upper surface of the crystallizer, and a power output shaft of the second flattening roller swinging driving motor is in transmission connection with the second flattening roller rotating shaft; the second flattening roller swinging drive motor drives the second flattening roller rotating shaft to rotate, so that the second flattening roller swings around the second flattening roller rotating shaft, the second flattening roller clings to the upper surface of the crystallizer in the swinging process, the liquid metal raw material on the upper surface of the crystallizer is swept, and the liquid metal raw material is more uniformly distributed in each forming groove.
9. The granulated casting method as claimed in any one of claims 1 to 5, wherein: the receiving and conveying device comprises a receiving base, a scrap powder collecting hopper, a receiving disc and a guide chute; the scrap powder collecting hopper is fixedly arranged on the material receiving base, the material receiving disc is rotatably arranged on the material receiving base and is positioned right above the scrap powder collecting hopper, and the material receiving base is provided with a material receiving disc rotation driving device capable of driving the material receiving disc to rotate; the top of the scrap powder collecting hopper is provided with an annular protective wall, the annular protective wall surrounds the outer side of the material receiving disc, a first discharging notch is formed in the annular protective wall, and a feeding hole of the guide chute is communicated with the first discharging notch in the annular protective wall; the bottom of the receiving disc is provided with a plurality of sieve pores, and the side wall of the receiving disc is provided with a second discharging notch; the bottom of the scrap powder collecting hopper is provided with a scrap powder outlet; the material receiving and conveying devices are the same in number and correspond to the solidification forming devices one by one, and the material receiving and conveying devices are located below the corresponding solidification forming devices.
10. The granulated casting method as claimed in claim 9, wherein: the receiving disc rotation driving device comprises a receiving disc rotation driving motor, a receiving disc supporting shaft, a receiving disc supporting sleeve and a receiving disc support, the receiving disc supporting shaft is arranged in the vertical direction, the lower end of the receiving disc supporting shaft is fixedly connected with the receiving base, the receiving disc supporting sleeve is sleeved at the upper end of the receiving disc supporting shaft, the receiving disc supporting sleeve is connected with the upper end of the receiving disc supporting shaft through a bearing, the receiving disc support is fixedly arranged on the receiving disc supporting sleeve, the receiving disc is fixedly arranged on the receiving disc support, and a power output shaft of the receiving disc rotation driving motor is in transmission connection with the receiving disc supporting sleeve;
a discharge channel is arranged in the upper part of the receiving disc support shaft, the upper end of the discharge channel is opened at the top surface of the receiving disc support shaft, and the lower end of the discharge channel is opened at the side surface of the receiving disc support shaft; the discharge channel is positioned under the receiving tray, and an opening at the upper end of the discharge channel is communicated with the sieve pores at the bottom of the receiving tray; a stirring rod is arranged in the discharge channel, and the upper end of the stirring rod is connected with the receiving disc bracket;
a discharging guide groove is arranged below the scrap powder outlet at the bottom of the scrap powder collecting hopper, and the discharging guide groove is gradually inclined downwards from one end to the other end of the discharging guide groove; a discharging pipe is arranged on the outer side surface of the receiving disc support shaft, the feeding end of the discharging pipe is communicated with an opening at the lower end of the discharging channel, and the discharging pipe is gradually inclined downwards from the feeding end to the discharging end;
an air inlet is formed in the bottom or the side wall of the guide chute, a fan is installed at the air inlet, and the fan blows air into the guide chute;
the material receiving and conveying device also comprises a material guide hopper, wherein the material guide hopper is provided with a top opening and a bottom opening, and the top opening is larger than the bottom opening; the bottom of the material guide hopper is fixedly connected with the top of the material receiving disc, and the top of the material receiving disc is provided with a material inlet communicated with the bottom opening of the material guide hopper.
CN201910493574.XA 2019-06-06 2019-06-06 Granulation casting method Active CN110153401B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910493574.XA CN110153401B (en) 2019-06-06 2019-06-06 Granulation casting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910493574.XA CN110153401B (en) 2019-06-06 2019-06-06 Granulation casting method

Publications (2)

Publication Number Publication Date
CN110153401A CN110153401A (en) 2019-08-23
CN110153401B true CN110153401B (en) 2021-11-02

Family

ID=67627889

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910493574.XA Active CN110153401B (en) 2019-06-06 2019-06-06 Granulation casting method

Country Status (1)

Country Link
CN (1) CN110153401B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110102747B (en) * 2019-06-06 2024-05-07 汕头华兴冶金设备股份有限公司 Granulating casting machine
CN112989500B (en) * 2021-04-23 2021-07-23 中国空气动力研究与发展中心高速空气动力研究所 Inlet flow-dividing stability-expanding design method suitable for contra-rotating lift fan
CN114918374B (en) * 2022-06-02 2024-02-27 攀钢集团钛业有限责任公司 Mould for directly granulating and forming molten iron on pig machine
CN115255339B (en) * 2022-08-10 2023-05-19 航大(厦门)新材科技有限公司 Demolding device for ingot mold and application method of demolding device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893081A (en) * 1955-07-18 1959-07-07 Aluminium Ind Ag Ingot casting machine
CN2302857Y (en) * 1997-08-08 1999-01-06 张友富 Back-rotating type casting and moulding machine for continuously casting and milling
CN203513768U (en) * 2013-10-30 2014-04-02 江西自立资源再生有限公司 Novel copper discharge device of reducing furnace
CN203541502U (en) * 2013-11-26 2014-04-16 潘高峰 Rotating type pouring device
CN204769477U (en) * 2015-06-18 2015-11-18 重庆市瑞轩豪邦新型建材有限公司 Brickmaking raw materials screening plant
CN205732925U (en) * 2016-05-17 2016-11-30 赣州恒永铝材有限公司 A kind of aluminum profile extrusion pickoff
CN107116206A (en) * 2017-04-12 2017-09-01 重庆市永川区益锐机械有限责任公司 Rotary casting automatic casting device
CN109500378A (en) * 2018-12-18 2019-03-22 陈坤林 A kind of ferroalloy series of products smelting molten iron is cast into the granulator of pelletized product

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384459A (en) * 2014-10-28 2015-03-04 宁夏天纵泓光余热发电技术有限公司 Iron alloy casting mold
CN207668452U (en) * 2017-12-19 2018-07-31 南京浦江合金材料股份有限公司 One kind is for high-quality hypoxemia nodulizer casting ingot mould device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893081A (en) * 1955-07-18 1959-07-07 Aluminium Ind Ag Ingot casting machine
CN2302857Y (en) * 1997-08-08 1999-01-06 张友富 Back-rotating type casting and moulding machine for continuously casting and milling
CN203513768U (en) * 2013-10-30 2014-04-02 江西自立资源再生有限公司 Novel copper discharge device of reducing furnace
CN203541502U (en) * 2013-11-26 2014-04-16 潘高峰 Rotating type pouring device
CN204769477U (en) * 2015-06-18 2015-11-18 重庆市瑞轩豪邦新型建材有限公司 Brickmaking raw materials screening plant
CN205732925U (en) * 2016-05-17 2016-11-30 赣州恒永铝材有限公司 A kind of aluminum profile extrusion pickoff
CN107116206A (en) * 2017-04-12 2017-09-01 重庆市永川区益锐机械有限责任公司 Rotary casting automatic casting device
CN109500378A (en) * 2018-12-18 2019-03-22 陈坤林 A kind of ferroalloy series of products smelting molten iron is cast into the granulator of pelletized product

Also Published As

Publication number Publication date
CN110153401A (en) 2019-08-23

Similar Documents

Publication Publication Date Title
CN110153401B (en) Granulation casting method
CN109676094B (en) Casting device, ingot casting system and ingot casting method
CN116197352B (en) Automatic cleaning and recycling device for precision casting molding sand
KR20100138060A (en) Apparatus for recycling metal cutting chip
CN210305726U (en) Granulating casting machine
KR102208553B1 (en) Apparatus for casting aluminium ingot continuously
CN210208544U (en) Solidification forming device of granulating casting machine
CN110102747B (en) Granulating casting machine
CN200974859Y (en) Continuous slag casting machine
CN111676332A (en) Steel slag comb thermal crushing and thermal forming self-crushing device
EP1072342A1 (en) Pipe core clean out system
CN210908014U (en) Annular casting line
US7694703B2 (en) Apparatus for dispensing particulate material and components therefor
CN210208619U (en) Copper plate crystallizer
CN108380503B (en) Automatic vacuum melting rapid hardening piece selecting equipment
CN210208628U (en) Casting device of granulating casting machine
CN214349577U (en) Pouring system for preventing casting deformation
CN108067592A (en) A kind of integration casting apparatus and casting workshop clean preparation method
CN116967398A (en) Machining process and machining equipment for profiling nickel core alloy copper die
CN111618259A (en) Assembly line auxiliary type casting pouring mechanism based on casting processing
CN114985831A (en) Cutting equipment for cast ingot shrinkage cavity machining and using method thereof
CN210305746U (en) Material receiving and conveying device of granulating casting machine
JPH07290360A (en) Recovering device for grinder ground chip
CN210450941U (en) Casting device is used in production of high temperature mould steel
CN113953448A (en) Sand casting method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant