CN209166083U - A kind of uninterrupted molding melting furnace structure of industrial silicon - Google Patents

Abstract

The utility model discloses a kind of uninterrupted molding melting furnace structures of industrial silicon, the silicon profile shapes that the cross-sectional shape of discharge nozzle obtains as needed are configured, drawing bar is moved down along discharge nozzle, the liquid melted in crucible is aspirated, liquid is driven to gradually fill with discharge nozzle and flow downward, when liquid flows to water cooling box present position, it is water cooled case and forces cooling, liquid completes solidification within the short time by crystallisation chamber, it is finally exported with drawing bar from the bottom end of discharge nozzle, obtains the industrial silicon material of specified cross-section shape.The sleeve of about two distributions is respectively provided under each discharge nozzle of the utility model, two sleeves are controlled alternately to move up and down within the scope of each self-forming, it can realize uninterruptedly pulling straight to silicon material, complete continuous overall structure is once made in silicon material melted in crucible, greatly improves the degree of automation and finished product integrity degree of the utility model.

Description

A kind of uninterrupted molding melting furnace structure of industrial silicon

Technical field

The present invention relates to vacuum melting furnace fields, and in particular to a kind of uninterrupted molding melting furnace structure of industrial silicon.

Background technique

Vacuum melting refers to the extraordinary melting technique for carrying out melting under vacuum conditions.Mainly include vacuum induction melting, Vacuum arc remelting and electron-beam smelting.With developing by leaps and bounds for modern science and technology, especially opened along with aerospace, ocean The rapid progression of hair, energy development and electronics industry, to the kind of metal material or nonmetallic materials, yield, especially quality Propose increasingly higher demands.Vacuum melting needs carry out in vacuum melting furnace, for the melting of industrial silicon, are all Molding casting is obtained by carrying out pouring in mold after melting, however this mode can not directly obtain profile, only It is able to satisfy the production of existing silica brick, when needing the industrial silicon using specially-shaped, also wants secondary moulding, cost is caused to increase effect Rate is low.

Summary of the invention

The purpose of the present invention is to provide a kind of uninterrupted molding melting furnace structures of industrial silicon, to solve in the prior art The problem of secondary moulding is often wanted when industrial silicon use realizes the one-pass molding in Vacuum Melting, is not necessarily to secondary moulding, drop The purpose of low cost.

The present invention is achieved through the following technical solutions:

A kind of uninterrupted molding melting furnace structure of industrial silicon, including the furnace body with vacuum suction mouth, setting in furnace body Crucible, load coil are located at outside the crucible, the thrustor of the furnace interior bottom surface setting output end upward, described The output end of thrustor is contacted with crucible bottom, and the crucible bottom setting runs through the discharge nozzle of crucible bottom surface, the discharging Drawing bar is set in pipe, and the cross section of the drawing bar and the cross section of the discharge nozzle match, setting below the furnace body Water cooling box is arranged in crystallisation chamber, the crystallisation chamber inside top surface, and the discharge nozzle is passed through from water cooling box, and the bottom end of discharge nozzle from Crystallisation chamber bottom surface is pierced by crystallisation chamber, and crystallization head is fixedly connected at the top of the drawing bar, and the crystallization head is up-small and down-big cone, It crystallizes head surface and spiral groove is set；The sleeve of setting open at both ends, sleeve face discharge nozzle, the set below the crystallisation chamber Cylinder is coaxial with the discharge nozzle, and the sleeve of about two distributions is respectively provided under each discharge nozzle, and the internal diameter of the sleeve is greater than The internal diameter of expects pipe, the opposite sides of sleeve are respectively provided with gear, axis of the axis of the gear perpendicular to sleeve, each gear It is engaged with the rack gear to match, the long axis of the rack gear is parallel to the axis of sleeve, there is one in the gear on each sleeve For driving wheel, the driving wheel is driven by the motor being mounted on sleeve；The air bag of the inner wall bonding annular of the sleeve, The air bag is connected by hose with air pump；All motors, air pump are connected with controller；Further include positioned at furnace interior every From block, the crucible is placed on spacing block；The cartridges sides open up blind hole, and shaft, institute is arranged in the two lateral walls of blind hole Gear is stated to be fixed in shaft；It further include mounting plate, the mounting plate is fixed on crystallisation chamber bottom, the rack gear, air pump, control Device is each attached on mounting plate.

Aiming at the problem that often wanting secondary moulding when industrial silicon use in the prior art, the present invention proposes a kind of industrial silicon not It is interrupted molding melting furnace structure, the furnace body of vacuum melting furnace is with vacuum suction mouth, for keeping in fusion process in furnace body The vacuum state in portion heats crucible by load coil, to carry out melting in crucible.Thrustor is arranged in furnace Body inner bottom surface, output end are contacted with crucible bottom, therefore can jack up crucible upwards by thrustor so that crucible to Upper movement.Crucible bottom setting runs through the discharge nozzle of crucible, and drawing bar, the cross section of drawing bar and institute is arranged in the discharge nozzle The cross section for stating through-hole matches, and is so that drawing bar can be filled with discharge nozzle, while drawing bar and energy on cross section It is enough to be moved in discharge nozzle.The cross section refers to the section perpendicular to drawing bar or discharge nozzle axis.Setting knot below furnace body Water cooling box is arranged in brilliant room, crystallisation chamber inside top surface, water-cooled cooling is carried out to discharge nozzle by water cooling box, since discharge nozzle is from water cooling It is passed through in case, and the bottom end of discharge nozzle is pierced by crystallisation chamber, therefore the temperature gradient of discharge nozzle in the axial direction from crystallisation chamber bottom surface Greatly, the discharging tube temperature for being induction heated that coil heats temperature is very high positioned at the discharge nozzle of furnace interior, and being located at outside water cooling box Degree significantly reduces so that be drawn in discharge nozzle liquid-state silicon that bar is driven can in a very short period of time rapid crystallization at Type.Crystallization head is fixedly connected at the top of drawing bar, the crystallization head is up-small and down-big cone, avoids liquid forming core on crystallization head Crystallization head is scratched with ingot casting, while increasing the contact area between crystallization head and the liquid being drawn, increases surface tension, to mention The drawing ability of high drawing bar.It crystallizes head surface and spiral groove is set, spiral groove is that helically line is distributed on crystallization head Groove body, made in drawing bar folding process by spiral groove, liquid can not only under the effect of gravity in discharge nozzle to Lower flowing, also suffer from spiral groove it is downward pull power, along spiral groove rapid rundown, by spiral groove to liquid Body provide guidance and traction, it is ensured that liquid be filled in always crystallization head outside, avoid evacuating, it is ensured that form silicon member stable structure and Continuity.It further include the spacing block positioned at furnace interior, the crucible is placed on spacing block, and the spacing block is preferably heat-insulated Material is made, and avoids crucible heat from being directly delivered to furnace body bottom surface and is transferred to crystallisation chamber influence crystalline rate again.Crystallisation chamber The sleeve of open at both ends is arranged in lower section, and sleeve face discharge nozzle, the sleeve and the discharge nozzle are coaxial, under each discharge nozzle The sleeves of about two distributions are set, the internal diameter of sleeve is greater than the internal diameter of discharge nozzle so that drawing bar and extract at Type silicon material can enter in sleeve to be passed through from sleeve.For each sleeve, driving wheel rotation is driven by motor, actively Wheel is moved up and down along rack gear, under the collective effect of remaining gear, so that stable do along rack gear of sleeve moves down It is dynamic.Controller can also control air pump simultaneously, thus to air bag carry out inflation/deflation, air bag inflation, be tightly wrapped in drawing bar or Outside molding silicon material, drawing bar or silicon material is driven integrally to move down using the frictional force between air bag and drawing bar or silicon material, Realize the effect of automatic drawing.Due to being respectively provided with the sleeve of about two distributions under each discharge nozzle, two sleeves are controlled It is alternately moved up and down within the scope of each self-forming, can realize uninterruptedly pulling straight to silicon material, it will be melted in crucible Silicon material complete continuous overall structure is once made, greatly improve the degree of automation and finished product integrity degree of the invention.This When inventing specifically used, the silicon profile shapes that the cross-sectional shape of discharge nozzle obtains as needed are configured, and are such as set as round Shape, rectangular, polygon etc. are reconfigured the drawing bar to match with discharge nozzle cross section.After the completion of melting heating, It is filled with argon gas to furnace interior, unloads the vacuum state of furnace interior, so that furnace body inside and outside air pressure balance, later by controller control It makes two sleeves and is in high point, the air bag inflation on first sleeve makes it only wrap up drawing bar, controls first The corresponding driving wheel rotation of the motor driven of sleeve drives drawing bar to move down, drawing so that first sleeve is moved down along rack gear Bar is moved down along discharge nozzle, is aspirated to the liquid melted in crucible, and liquid is driven to gradually fill with discharge nozzle and flow downward, When liquid flows to water cooling box present position, it is water cooled case and forces cooling, liquid is completed within the short time by crystallisation chamber Solidification finally exports from the bottom end of discharge nozzle with drawing bar, obtains the industrial silicon material of specified cross-section shape.It is moved past under drawing bar Cheng Zhong, additionally it is possible to push crucible to move up by thrustor, increase the relative displacement between crucible and drawing bar, to improve one The length of silicon material acquired in secondary displacement.When first sleeve moves on to lowest order, air bag inflation to second sleeve and It drives second sleeve to move down, realizes the continuous continual extraction to drawing bar, while controlling to first by controller The air bag of sleeve is deflated and is resetted to high point, to be repeated by first sleeve above-mentioned when second sleeve reaches low level Step realizes continuous continual alternate drawing operation always.Cross section and the molding silicon material of pull-out due to drawing bar Cross section is same shape, therefore when drawing bar is drawn out completely, air bag still can be coated on outside silicon material, continue to draw It is dynamic, it will not influence normal work of the invention.The silicon material obtained through the invention not only structure can one-pass molding, but also it is continuous Property and integrity degree it is all high, only need to carry out length cutting as needed when in use, be not necessarily to secondary moulding, greatly save Cost, improves service efficiency, improves the molding comfort level of industrial silicon vacuum smelting, has compared to the prior art prominent Substantive distinguishing features and significant progress out.

Preferably, groove is arranged in the crucible bottom surface, and the output end of the thrustor is located in groove.Ensure that pushing tow fills Set the stabilization pushed crucible when moving up and continuous.

Preferably, the crystallisation chamber fills heat-conducting silicone grease by metal plate around forming in crystallisation chamber.Heat-conducting silicone grease and metal Plate all has good heating conduction, overflows so that the heat being transmitted in discharge nozzle quickly dissipates outward, heat build-up is avoided to exist The cooling effect that water cooling box is influenced in crystallisation chamber improves water cooling box to the pressure cooling effect of liquid.

Preferably, water inlet pipe, outlet pipe are connected on the water cooling box, the water inlet pipe, outlet pipe all extend to crystallisation chamber It is external.Cooling water is continually fed into water cooling box by water inlet pipe when use, and is discharged from outlet pipe, so that water The efficient cooling water flow of circulation is formed in ice chest, it is ensured that can also guarantee to force cooling effect in slow drawing process, into one Step improves stability in use and reliability of the invention.

Preferably, it is arranged silica gel sheath cylinder outside the discharge nozzle, the silica gel sleeve is fixed on bottom of furnace body.Silica gel sleeve is same Sealing performance between raising discharge nozzle and bottom of furnace body, while discharge nozzle is protected, avoid discharge nozzle physics impaired.

Preferably, the bottom surface of the discharge nozzle is flushed with the bottom surface of the crystallisation chamber, is arranged sealing ring outside discharge nozzle, described Sealing ring is fixedly connected with water cooling box bottom surface.Sealing ring is to ensure the leakproofness between water cooling box and discharge nozzle.

Preferably, several layers heat insulating mattress is arranged in the furnace interior bottom surface, is detachably connected between adjacent two layers heat insulating mattress, The spacing block is placed on heat insulating mattress.Spacing block height can be raised by several heat insulating mattress, to raise crucible in furnace body Internal height, so as to which longer discharge nozzle is arranged, to meet the length requirement of longer one-pass molding silicon material, further Improve the scope of application of the invention.The heat that crucible is transferred to crystallisation chamber is further decreased simultaneously.

Preferably, the drawing bar top side detachable connects piston body, and the crystallization head is located at piston body far from drawing bar One end.It is using piston body as piston, to form the piston structure for stablizing suction using discharge nozzle as plunger shaft, draw in this programme Dead man, which moves down, drives piston body to move down in discharge nozzle, to carry out stablizing suction to the liquid of thawing, further decreases evacuation Possibility improves the structural continuity of the molding silicon material of cast.

Compared with prior art, the present invention having the following advantages and benefits:

1, the uninterrupted molding melting furnace structure of a kind of industrial silicon of the present invention, the cross-sectional shape of discharge nozzle are as needed To silicon profile shapes be configured, drawing bar is moved down along discharge nozzle, the liquid melted in crucible is aspirated, band hydrodynamic Body gradually fills with discharge nozzle and flows downward, and when liquid flows to water cooling box present position, is water cooled case and forces cooling, liquid Solidification is completed within the short time by crystallisation chamber, is finally exported with drawing bar from the bottom end of discharge nozzle, is obtained specified cross-section The industrial silicon material of shape.

2, the uninterrupted molding melting furnace structure of a kind of industrial silicon of the present invention, is arranged crystallisation chamber below furnace body, in crystallisation chamber Water cooling box is arranged in portion top surface, carries out water-cooled cooling to discharge nozzle by water cooling box, since discharge nozzle is passed through from water cooling box, and goes out The bottom end of expects pipe is pierced by crystallisation chamber from crystallisation chamber bottom surface, therefore the temperature gradient of discharge nozzle in the axial direction is very big, is located at furnace body Internal discharge nozzle is induction heated that coil heats temperature is very high, and the discharge nozzle temperature being located at outside water cooling box significantly reduces, from And enables and be drawn the liquid-state silicon that bar is driven in discharge nozzle rapid crystallization forms in a very short period of time.

3, the uninterrupted molding melting furnace structure of a kind of industrial silicon of the present invention, to move past under drawing bar by spiral groove Cheng Zhong, liquid can not only flow downward in discharge nozzle under the effect of gravity, also suffer from spiral groove it is downward pull power, Along spiral groove rapid rundown, guidance and traction are provided to liquid by spiral groove, it is ensured that liquid is filled in always It crystallizes outside head, avoids evacuating, it is ensured that form the stable structure and continuity of silicon member.

4, the uninterrupted molding melting furnace structure of a kind of industrial silicon of the present invention is respectively provided with about two under each discharge nozzle and divides The sleeve of cloth controls two sleeves and alternately moves up and down within the scope of each self-forming, can realize uninterruptedly connecting to silicon material It is continuous to pull out, complete continuous overall structure is once made in silicon material melted in crucible, is greatly improved of the invention automatic Change degree and finished product integrity degree.

Detailed description of the invention

Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the specific embodiment of the invention 1；

Fig. 2 is the structural schematic diagram that head is crystallized in the specific embodiment of the invention 1；

Fig. 3 is that driving wheel axis is crossed in the specific embodiment of the invention 1 to the cross-sectional view of sleeve；

Fig. 4 is the structural schematic diagram under 2 working condition of the specific embodiment of the invention.

Label and corresponding parts title in attached drawing:

1- furnace body, 2- are sucked by vacuum mouth, 3- crucible, 4- thrustor, 5- discharge nozzle, 6- drawing bar, 7- crystallisation chamber, 8- water Ice chest, 9- spacing block, 10- crystallize head, 11- spiral groove, 12- heat-conducting silicone grease, 13- water inlet pipe, 14- outlet pipe, 15- silica gel sheath Cylinder, 16- sealing ring, 17- heat insulating mattress, 18- piston body, 19- load coil, 20- sleeve, 21- motor, 22- gear, 23- Rack gear, 24- air bag, 25- hose, 26- air pump, 27- controller, 28- blind hole, 29- shaft, 30- mounting plate.

Specific embodiment

To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made For limitation of the invention.

Embodiment 1:

A kind of uninterrupted molding melting furnace structure of industrial silicon as shown in Figure 1 to Figure 3, including with vacuum suction mouth 2 Furnace body 1, crucible 3 is set in furnace body 1, and load coil 19 is located at outside the crucible 3, and 1 inner bottom surface of furnace body is arranged The output end of the thrustor 4 of output end upward, the thrustor 4 is contacted with 3 bottom of crucible, 3 bottom of the crucible setting Discharge nozzle 5 through 3 bottom surface of crucible, the discharge nozzle 5 is interior to be arranged drawing bar 6, the cross section of the drawing bar 6 and the discharging The cross section of pipe 5 matches, and crystallisation chamber 7 is arranged below the furnace body 1, and water cooling box 8, institute is arranged in 7 inside top surface of crystallisation chamber It states discharge nozzle 5 to pass through from water cooling box 8, and the bottom end of discharge nozzle 5 is pierced by crystallisation chamber 7, the drawing bar 6 from 7 bottom surface of crystallisation chamber Top is fixedly connected with crystallization head 10, and the crystallization head 10 is up-small and down-big cone, and spiral groove 11 is arranged in crystallization 10 surface of head； The sleeve 20 of open at both ends, 20 face discharge nozzle 5 of sleeve, the sleeve 20 and the discharge nozzle 5 are set below the crystallisation chamber 7 Coaxially, the sleeve 20 of about two distributions is respectively provided under each discharge nozzle 5, the internal diameter of the sleeve 20 is greater than the interior of discharge nozzle 5 Diameter, the opposite sides of sleeve 20 are respectively provided with gear 22, axis of the axis of the gear 22 perpendicular to sleeve 20, each gear 22 It is all engaged with the rack gear 23 to match, the long axis of the rack gear 23 is parallel to the axis of sleeve 20, the gear on each sleeve 20 There is one in 22 for driving wheel, the driving wheel is driven by the motor 21 being mounted on sleeve 20；The sleeve 20 The air bag 24 of inner wall bonding annular, the air bag 24 are connected by hose 25 with air pump 26；All motors 21, air pump 26 with control Device 27 processed is connected；It further include the spacing block 9 inside furnace body 1, the crucible 3 is placed on spacing block 9.20 side of sleeve Face opens up blind hole 28, and shaft 29 is arranged in the two lateral walls of blind hole 28, and the gear 22 is fixed in shaft 29.It further include installation Plate 30, the mounting plate 30 are fixed on 7 bottom of crystallisation chamber, and the rack gear 23, air pump 26, controller 27 are each attached to mounting plate 30 On.There are two the discharge nozzles 5 being connected in the present embodiment with crucible, therefore corresponding drawing bar, crystallisation chamber, water cooling box have two A, therefore sleeve has been also divided into two groups of the left and right in Fig. 1, every group of sleeve has two be distributed up and down, wherein two groups of sleeves it Between share one piece of mounting plate.In addition, controller 27 is preferably PLC controller in the present embodiment, air bag is preferably rubber material, soft Pipe is preferably latex hose.

Embodiment 2:

A kind of uninterrupted molding melting furnace structure of industrial silicon as shown in Figures 1 to 4, on the basis of embodiment 1, institute 3 bottom surface of crucible setting groove is stated, the output end of the thrustor 4 is located in groove.The crystallisation chamber 7 surrounded by metal plate and At filling heat-conducting silicone grease 12 in crystallisation chamber 7.Water inlet pipe 13, outlet pipe 14 are connected on the water cooling box 8, the water inlet pipe 13 goes out Water pipe 14 all extends to outside crystallisation chamber 7.It is arranged silica gel sheath cylinder 15 outside the discharge nozzle 5, the silica gel sleeve 15 is fixed on furnace 1 bottom of body.The bottom surface of the discharge nozzle 5 is flushed with the bottom surface of the crystallisation chamber 7, is arranged sealing ring 16 outside discharge nozzle 5, described close Seal 16 is fixedly connected with 8 bottom surface of water cooling box.Several layers heat insulating mattress 17 is arranged in 1 inner bottom surface of furnace body, and adjacent two layers are heat-insulated It is detachably connected between pad 17, the spacing block 9 is placed on heat insulating mattress 17.6 top side detachable of drawing bar connects piston Body 18, the crystallization head 10 are located at the one end of piston body 18 far from drawing bar 6.

Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include Within protection scope of the present invention.

Claims (8)

1. the uninterrupted molding melting furnace structure of a kind of industrial silicon, including the furnace body (1) with vacuum suction mouth (2), furnace body (1) Interior setting crucible (3), load coil (19) are located at the crucible (3) outside, which is characterized in that furnace body (1) inner bottom The thrustor (4) of output end upward is arranged in face, and the output end of the thrustor (4) is contacted with crucible (3) bottom, the earthenware The setting of crucible (3) bottom runs through the discharge nozzle (5) of crucible (3) bottom surface, drawing bar (6) is arranged in the discharge nozzle (5), the drawing The cross section of bar (6) and the cross section of the discharge nozzle (5) match, and crystallisation chamber (7) are arranged below the furnace body (1), described Water cooling box (8) are arranged in crystallisation chamber (7) inside top surface, and the discharge nozzle (5) passes through from water cooling box (8), and the bottom of discharge nozzle (5) End is pierced by crystallisation chamber (7) from crystallisation chamber (7) bottom surface, and crystallization head (10), the crystallization head are fixedly connected at the top of the drawing bar (6) It (10) is up-small and down-big cone, crystallization head (10) surface setting spiral groove (11)；Both ends are set below the crystallisation chamber (7) Open sleeve (20), sleeve (20) face discharge nozzle (5), the sleeve (20) and the discharge nozzle (5) coaxially, each discharging The sleeve (20) of about two distributions is respectively provided under pipe (5), the internal diameter of the sleeve (20) is greater than the internal diameter of discharge nozzle (5), set The opposite sides of cylinder (20) is respectively provided with gear (22), axis of the axis of the gear (22) perpendicular to sleeve (20), Mei Gechi Wheel (22) is all engaged with the rack gear (23) to match, and the long axis of the rack gear (23) is parallel to the axis of sleeve (20), Mei Getao Have in gear (22) on cylinder (20) one for driving wheel, the driving wheel by the motor (21) that is mounted on sleeve (20) into Row driving；The air bag (24) of the inner wall bonding annular of the sleeve (20), the air bag (24) pass through hose (25) and air pump (26) it is connected；All motors (21), air pump (26) are connected with controller (27)；It further include the isolation internal positioned at furnace body (1) Block (9), the crucible (3) are placed on spacing block (9)；Sleeve (20) side opens up blind hole (28), the phase of blind hole (28) Shaft (29) are arranged to two sidewalls, the gear (22) is fixed on shaft (29)；It further include mounting plate (30), the mounting plate (30) it is fixed on crystallisation chamber (7) bottom, the rack gear (23), air pump (26), controller (27) are each attached on mounting plate (30).

2. a kind of uninterrupted molding melting furnace structure of industrial silicon according to claim 1, which is characterized in that the crucible (3) groove is arranged in bottom surface, and the output end of the thrustor (4) is located in groove.

3. a kind of uninterrupted molding melting furnace structure of industrial silicon according to claim 1, which is characterized in that the crystallization Room (7), around forming, fills heat-conducting silicone grease (12) in crystallisation chamber (7) by metal plate.

4. a kind of uninterrupted molding melting furnace structure of industrial silicon according to claim 1, which is characterized in that the water cooling Water inlet pipe (13), outlet pipe (14) are connected on case (8), the water inlet pipe (13), outlet pipe (14) all extend to crystallisation chamber (7) outside Portion.

5. a kind of uninterrupted molding melting furnace structure of industrial silicon according to claim 1, which is characterized in that the discharging It is arranged silica gel sheath cylinder (15) outside pipe (5), the silica gel sleeve (15) is fixed on furnace body (1) bottom.

6. a kind of uninterrupted molding melting furnace structure of industrial silicon according to claim 1, which is characterized in that the discharging The bottom surface of pipe (5) is flushed with the bottom surface of the crystallisation chamber (7), is arranged sealing ring (16) outside discharge nozzle (5), the sealing ring (16) It is fixedly connected with water cooling box (8) bottom surface.

7. a kind of uninterrupted molding melting furnace structure of industrial silicon according to claim 1, which is characterized in that the furnace body (1) inner bottom surface setting several layers heat insulating mattress (17), adjacent two layers heat insulating mattress are detachably connected between (17), the spacing block (9) it is placed on heat insulating mattress (17).

8. a kind of uninterrupted molding melting furnace structure of industrial silicon according to claim 1, which is characterized in that the drawing Bar (6) top side detachable connects piston body (18), and crystallization head (10) is located at one of piston body (18) far from drawing bar (6) End.