CN110132009B - Furnace pot with zipper lining and hot bottom - Google Patents
Furnace pot with zipper lining and hot bottom Download PDFInfo
- Publication number
- CN110132009B CN110132009B CN201910166688.3A CN201910166688A CN110132009B CN 110132009 B CN110132009 B CN 110132009B CN 201910166688 A CN201910166688 A CN 201910166688A CN 110132009 B CN110132009 B CN 110132009B
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- wall
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- 239000011449 brick Substances 0.000 claims abstract description 174
- 238000005485 electric heating Methods 0.000 claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 241000272525 Anas platyrhynchos Species 0.000 claims abstract description 39
- 238000004512 die casting Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 70
- 238000005266 casting Methods 0.000 claims description 28
- 239000000758 substrate Substances 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 15
- 230000005484 gravity Effects 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 14
- 238000004021 metal welding Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 29
- 238000002485 combustion reaction Methods 0.000 description 22
- 239000007788 liquid Substances 0.000 description 16
- 238000002844 melting Methods 0.000 description 12
- 230000008018 melting Effects 0.000 description 12
- 239000002737 fuel gas Substances 0.000 description 8
- 238000005338 heat storage Methods 0.000 description 8
- 210000001503 joint Anatomy 0.000 description 7
- 238000004321 preservation Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000002194 synthesizing effect Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011195 cermet Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a hot-bottom furnace tank with a zipper lining, which relates to the die casting molding of metallurgical materials and is characterized in that a furnace bottom brickwork is provided with a heating device, the electric heating efficiency is high, the hearth tooth-meshed brickwork does not adhere to aluminum or has extremely long service life of aluminum slag, and the hot-bottom furnace tank is characterized in that: the top view appearance of the furnace shell wall approximates to the shape of a duck egg round notch, the furnace shell wall is formed by tangentially connecting a semicircular arc plate with two side arc plates, the circular notch section of the side arc plate formed in a tangential manner is connected with a furnace mouth plate, and the furnace mouth plate is inlaid with a conical furnace mouth; the upper opening of the duck egg-shaped furnace shell wall is inlaid with a cone-shaped shell plate, the middle part of the cone-shaped shell plate is inlaid with a flange of the furnace cover plate, the flange is connected with the cover plate through bolts, a stainless steel screw sleeve is inlaid in a screw hole of the flange, the cover plate is tightly fastened through the stress of the screw sleeve by the bolts, and metal welding under a static pressure and heat environment is not easy to form; the inner layer of the furnace lining is a U-shaped furnace wall inner ring which is formed by combining zipper tooth-engaged bricks, and the outer side of the inner ring is a U-shaped furnace wall outer ring which is formed by combining a zipper tooth-engaged wall and a side zipper wall and is formed by combining a peripheral duck egg-shaped U-shaped furnace wall outer ring.
Description
Technical Field
The invention relates to metallurgical material forming, in particular to a furnace, a tank and a ladle for die casting forming.
Background
The die casting technology is close to 40 years, and the masonry furnace lining material originally designed during the introduction is expensive, so that the masonry furnace is changed into a pouring furnace, the time between the bullet and the finger is 40 years, huge energy waste is lost, and the pouring furnace replaces the masonry furnace material, so that the heat preservation energy consumption is high, and the cracking is serious.
More than ten patent applications of die casting furnace technical subjects, such as ZL2015100448760, ZL2015100461462, ZL2015100461500, ZL2015100461619, ZL2015100461712, ZL2015100461731, ZL2015100461873, ZL2015100461905, ZL2015105644654, ZL2015105644974, ZL2015105644993, and the like, are filed 40 years before and after the process. In practice for several years, the general idea of the application was found to be positive, but various imperfections exist in the market for specific operations.
Disclosure of Invention
For the laggard and advanced games, the latest design of the invention provides a zipper lining hot-bottom furnace tank, which is provided with a body and comprises the following components: furnace shell, furnace gate, brickwork under the cap, the stove bottom brickwork of hot end, furnace's tooth interlock lining brickwork, characterized by: the top view appearance of the furnace shell wall is similar to the shape of a duck egg round notch, the furnace shell wall of the duck egg round notch is formed by connecting a semicircular arc plate with circular arc plates on two sides in a tangent way, a furnace mouth plate is connected with a round notch section of the tangential forming side circular arc plate, a cone furnace mouth is inlaid in the furnace mouth plate, and a cone furnace door is arranged at the cone furnace mouth; the furnace shell wall is provided with a junction box of an electric heating belt, an electric heating rod heating box and a trademark nameplate; the upper opening of the duck egg-shaped furnace shell is embedded with a cone-shaped shell plate, the center of the cone-shaped shell plate is embedded with a flange of a furnace shell cover plate, the flange is connected with a cover plate bolt, a stainless steel screw sleeve is embedded in a flange screw hole, and the cover plate is fastened by the bolt through a screw sleeve; the top layer masonry built below the furnace shell cover is that arc arch ring bricks and arc arch ring bricks are built on two sides of a combined brick above a furnace mouth, and cover plate mouth holes are formed by surrounding the arc arch ring bricks, the arc arch ring bricks and the combined brick, cover plate bricks are inlaid in the cover plate mouth holes, and side arc heat-insulating bricks and arc heat-insulating bricks are built outside the cover plate mouth hole ring bricks on the periphery of the cover plate bricks; the hearth part is built below the upper layer of furnace roof bricks, the lining wall of the hearth part is built into an integral furnace wall formed by the engagement of teeth in the form of four brick type zippers, The furnace wall zipper teeth are meshed to form a duck egg-shaped U-shaped furnace wall inner ring formed by combining zipper bricks and side zipper bricks, and the U-shaped furnace wall outer ring is provided with a zipper wall and a side zipper wall formed by zipper teeth in a meshed manner to form a duck egg-shaped U-shaped furnace wall outer ring of the furnace wall; the U-shaped shape of the duck egg round notch of the furnace wall is similar to the shape of the duck egg round notch of the furnace shell, and the periphery of the furnace wall similar to the duck egg round notch of the furnace shell is built with a side arc combined heat-insulating brick group and an arc combined heat-insulating brick group; the bottom layers of the zipper wall and the side zipper wall are provided with electric heating belt grooves, electric heating belts are laid in the electric heating belt grooves, and wiring sections of the electric heating belts are led into a flat belt electric heating body junction box; sealing powder is filled in the meshing gaps between the four brick-type combined toothed chains of the zipper bricks and the zipper walls and between the side zipper bricks and the side zipper walls, and sealing felts are arranged on the fan-shaped side surfaces of the chain bricks and the chain seat to block the loss of the sealing powder; the combined brickwork of the technical scheme is that the electric heating body is sleeved with an insulating tube, the cylindrical surface of the inner surface of the insulating tube is arranged on a dielectric seat in butt joint with the insulating tube through a sealing rebound ring, two sides of the dielectric seat are provided with occlusion concave-convex surfaces, the occlusion concave-convex surfaces of two adjacent dielectric seats are bitten to fix the root concave-convex surfaces of a Y-shaped brick, the root concave-convex surfaces are bitten by the dielectric seat to form an arc shape at the upper part of the Y-shaped brick vertically fixed by the dielectric seat, the dielectric seat group vertically fixed with the Y-shaped brick is combined and layered on the brickwork of the furnace bottom insulating brick, the dielectric seat support on the brickwork supports the lower arc surface of the insulating tube, the lower arc surface is intersected with the lower boundary of two planes, the upper boundary of the intersected lower arc surface is tangent with the upper arc surface, the upper arc surface axis of the tangent upper edge of the two planes is identical with the arc-shaped branch part of the Y-shaped brick vertically fixed by the dielectric seat, and the insulation tube is quartz or Al 2 O 3 The high-temperature sintered product is characterized in that a sealing plate is connected with the arc-shaped crotch part, and sealing powder is filled in gaps among the insulating tube, the crotch-shaped bricks and the dielectric seat; the insulating tube and the Y-shaped brick are connected in a multi-section plane manner to form a long-length pipeline, the long-length pipeline is connected into a whole through pressure sealing given by two ends, and an electrothermal body material are arranged in a central hole of the long-length pipeline insulating tube which is connected into a whole through pressure sealingThe insulating pipe with the electric heating body is provided with rebound rings at two end sections, and the top pressing flange is sealed by applying connection sealing pressure from two ends to the plane connection combination of the insulating pipe with the middle through long pipeline through the rebound rings; the pressure rings and the rebound bodies are arranged at the two end sections of the Y-shaped bricks outside the insulating tube, the jackscrews transmit the jacking force to the rebound bodies through the pressure rings, the rebound bodies transmit the jacking force to the pressure rings connected with the Y-shaped bricks, the pressure rings transmit the jacking force to the plane connection combination of the Y-shaped bricks, and the connection sealing pressure is applied to realize sealing; in another specific embodiment of the sealing technical scheme, the top pressure flange applies connection sealing pressure to the plane connection combination of the middle insulating tube from two ends through the insulating tube spring to realize sealing; the jackscrew conducts the jacking force through the Y-shaped brick spring to apply the connection sealing pressure to the plane connection combination of the Y-shaped bricks to realize sealing; the two inner crotch fillets of the crotch-shaped brick are excessively intersected, the included angle of the two inner crotch fillets is 60 degrees, the included angle of the two outer crotch fillets is 38 degrees, the two outer crotch fillets are tangent to the crotch concave-convex surface, the crotch concave-convex surface is meshed and embedded in the concave-convex surface of the dielectric seat, and the crotch-shaped brick is made of ZrO 2 Manufacturing.
The furnace shell is manufactured by respectively forming an upper section, a middle section and a bottom section and then synthesizing the upper section, the middle section and the bottom section, building furnace materials in the furnace shell after the furnace shell is manufactured to form a complete die-casting furnace, firstly forming the middle section of the furnace shell combination, forming the middle section by tangentially connecting and combining two arc plates of a double-layer vacuum semi-arc plate and a double-layer vacuum side arc plate, forming U-shaped wall plates with the appearance similar to a duck egg shape, connecting a furnace mouth plate at the opening part of the U-shaped wall plates, forming a closed ring-shaped shell wall by the U-shaped wall plates connected with the furnace mouth plate, forming an elliptical furnace mouth on the furnace mouth plate of the shell wall, forming a double-layer plate structure on the two sides of the shell wall with the elliptical furnace mouth, arranging heating boxes at two ends of the heating boxes, and fastening and sealing covers of the arc heating boxes at the two ends by Y-shaped bolts; step two, air is pumped out of the shell wall of the double-layer plate structure to realize a vacuum state, a furnace door is arranged on a furnace mouth arranged on the shell wall in the vacuum state, a sealing pressing ring is arranged in a sealing groove of the furnace door, a jackscrew jacking pressing ring is arranged on the pressing ring, the jacking pressing ring is tightly pressed and sealed with the furnace mouth plate, and the middle section is molded; step three, forming the upper section of the furnace shell, wherein the upper section is formed by connecting a double-layer vacuum inclined surface cover plate with a double-layer vacuum conical surface cover plate to form a conical table shell with a duck egg-shaped appearance in a combined mode, a connecting cover flange is embedded in an upper opening ring of the conical table shell, a cover flange is connected with a furnace cover with a sealing groove through bolts, stainless steel bolts penetrate through bolt holes uniformly arranged on the edge of the furnace cover, the stainless steel bolts penetrate through the furnace cover to be screwed into stainless steel wire sleeve screw holes embedded in the cover flange for fastening and sealing, a cover heat insulation block and a hoop of the heat insulation block are arranged below the sealed furnace cover, a furnace cover heat insulation block is embedded in the hoop, and the upper section is formed; step four, forming a bottom section of a furnace shell combination, wherein in the first step of forming the bottom section, a double-curved plate connecting spherical panel is used for synthesizing a U-shaped double-curved arc bottom section plate shell with a duck egg-shaped appearance, a lower opening of the bottom section plate shell is connected with an inclined bottom plate and a shell bottom plate to form a furnace bottom section shell in a combined mode, the furnace bottom section shell is connected with a furnace bottom plate through a bottom ring, a movable plate provided with a movable positioning hole is connected below the furnace bottom plate in a movable mode, the movable plate is movably connected with the furnace bottom plate through a longitudinal and transverse two-dimensional direction adjusting device, a transverse connecting device is used for adjusting and fixing the center distance NL between the center of the two positioning holes and the center of a casting hole through a screw, the longitudinal and transverse two-dimensional direction adjusting device can be used for adjusting and fixing the center of the casting hole at any point in a limited range, concentricity of a casting hole of a casting furnace casting hole and a casting hole of a die casting machine can be ensured, manufacturing and mounting tolerance or error and a plurality of types of universal world die casting machines are corrected, a zipper substrate is mounted on any die casting machine with the same tonnage, and the bottom section of the formed furnace shell combination is finished; step five, the upper, middle and bottom three sections of the furnace shell are integrally synthesized into a complete furnace shell, the first step, the upper section is embedded and connected in an upper opening ring of the middle section, the embedding depth is 15-50mm, the lower opening of the middle section in the second step is butted into a well-formed bottom section, and after the bottom section is butted and welded with the middle and upper sections, the furnace shell, the middle and bottom three sections are integrally synthesized into a complete zipper substrate furnace shell; step six, constructing tooth occlusion liners and heat insulation material blocks in a zipper lining hot bottom furnace shell, wherein the step a is that a front oblique bottom block, a middle oblique bottom block, a lower oblique bottom block, a front flat bottom block, a spherical surface block, an arc surface wall block and a side arc surface wall block of a furnace bottom heat insulation block are constructed; the arc-shaped insulating tube wrapped electrothermal body is a carbon fiber or graphite electrode section, the two ends of the ink electrode section are in a concave or convex spherical shape, and the ink electrode sections with the two ends in the spherical shape are combined into an arc-shaped electrothermal body by using a plurality of sections; an electric heating body wrapped by the arc insulating tube or a spiral electric heating body formed by curling a flat belt of the electric heating belt; thirdly, building bottom bricks, zipper bricks and side zipper bricks, and pouring alumina hollow sphere pouring materials between the zipper bricks, the side zipper bricks and the heat insulation blocks; a, building a cover opening arc block, a cover opening side arc block and a cover opening arc angle block to form a hole of a cover opening ring, and embedding a cover heat-insulating block in a hoop of the hole of the cover opening ring, wherein the cover opening heat-insulating cover embedded with the cover heat-insulating block is embedded in the hole of the cover opening ring; after the fastening bolt of the furnace cover 1 is covered, pouring a heat insulation block material into a cavity in the furnace door, and ending the manufacturing process of the zipper lining hot bottom furnace; after the manufacture, the furnace shell is nailed with a trademark nameplate with teeth engaged with the indication ring.
The zipper brick is also suitable for an aluminum liquid transfer tank or a casting ladle, the casting ladle or the transfer tank using the zipper brick is used, the zipper brick teeth are meshed in a hollow ball wall ring formed by casting a hollow ball, a bottom brick is laid below the hollow ball wall ring, an insulating tube penetrating through an electric heating body is laid below the bottom brick, joints at two ends of the insulating tube are provided with the electric heating body, two ends of the insulating tube protruding out of the joints are arranged in a junction box, and the joints in the junction box are electrically conducted with a common electric cableConnecting; the transferring tank or the casting ladle shell is provided with a tank leg support, the inside of the shell supported by the tank leg is provided with a soft heat-insulating casting material for wrapping and supporting a hollow ball wall ring and a bottom brick, and the bottom brick and the zipper brick are ZrO 2 Shaping the material, zrO 2 The material fashioned transfer jar or the inner chamber of watering the ladle is used for splendid attire aluminium liquid, and transfer jar or the shell of watering the ladle of splendid attire aluminium liquid are provided with jar mouth flange bolted connection and have the tank deck, and the tank deck edge is equipped with the lug, is equipped with the cap toper on the lug tank deck, is equipped with jar mouth and annular footboard on the toper cap, and the centre of annular footboard is equipped with the tank cap, the shell oval spherical of tank cap.
The zipper lining hot-substrate furnace tank is used as a melting furnace, a zipper lining hot-substrate furnace shell used as the melting furnace is manufactured by respectively forming an upper section, a middle section and a bottom section and then synthesizing, and a furnace material is built in the furnace shell after the furnace shell is manufactured to form a complete tooth-meshed lining hot-substrate melting furnace; the tooth-biting substrate melting furnace is different from the tooth-biting substrate in that: a secondary combustion chamber is paved at the bottom of the furnace, and a nozzle is arranged above the furnace mouth and sprays fuel gas and combustion-supporting gas O 2 The four nozzles are divided into two groups, the two groups of nozzles are respectively in fluid communication with two groups of combustion chamber pipelines, the two groups of combustion chambers in fluid communication with the pipelines are respectively connected with four heat storage chamber pipelines, the pipelines are connected with one group of two heat storage chambers of the four heat storage chambers, and each group of two heat storage chambers is in one-to-one fluid communication with the two groups of nozzles of fuel gas or combustion-supporting gas O 2 The method comprises the steps of carrying out a first treatment on the surface of the One group of nozzles outputs high-temperature reducing tail gas burnt by the other group of nozzles, and the output reducing tail gas is conveyed to a combustion chamber and combustion-supporting gas O 2 The mixed secondary combustion is neutral or peroxidized, the combustion heat passes through the bottom of a tube wall heating furnace of a combustion chamber, the heat exchange area of bottom aluminum liquid heating and liquid level flame heating is larger than that of single liquid level or submerged liquid, the efficiency is high, the speed of melting liquid state of solid aluminum can be accelerated, high-temperature tail gas after secondary combustion is distributed to different heat storage chambers in a reversing way by a reversing valve for heat storage, and the accumulated waste heat is utilized for preheating fuel gas and combustion-supporting gas O 2 The method comprises the steps of carrying out a first treatment on the surface of the The regenerative chambers for respectively accumulating heat are respectively four nozzles for reversing preheating fuel gas and combustion-supporting gas O 2 Gas and combustion-supporting gas O preheated by a regenerator 2 And the high-temperature reducing tail gas is respectively conveyed to the corresponding nozzles for combustion through pipelines, one group of nozzles outputs high-temperature reducing tail gas combusted by the other group of nozzles, and the high-temperature reducing tail gas is converted into the high-temperature reducing tail gas combusted by the other group of nozzles through reversing valves to output one group of nozzles.
The furnace shell is of a general type size, the model code QX-D-09 of the general type furnace shell is provided, D in the code represents a bottom heating furnace type, if D in the code is changed into S to be a general upper heating furnace type, the general upper heating furnace is provided with furnace wall heating, the code DB represents bottom heating and wall heating, the elevation C1297 mm+/-3 mm of the upper plane of the QX-D-09 general type furnace shell, the elevation B913 mm+/-3 mm of the center of the furnace mouth, the elevations C and B are all based on the elevation A+/-0 mm of the bottom plane, the central line of the horizontal plane of the furnace mouth is 1785 mm+/-5 mm of the longitudinal hearth depth, the longitudinal maximum contour length 2150mm plus or minus 5mm of the center line of the horizontal plane of the furnace mouth, the side arc radius 2650mm plus or minus 5mm of the maximum contour R1, the semicircular arc radius R775mm plus or minus 3mm of the maximum contour R2, the semicircular arc plates and the two side arc plates are 12mm thick, the thickness of the furnace mouth plate 90 is 25mm plus or minus 0.5mm, the thickness of the bottom plate is 32mm plus or minus 3mm, the side arc radius R3 of the cover plate is 2363mm plus or minus 0.5mm, the radius R5 semicircular arc radius of the cover plate 1 is 490mm plus or minus 1mm, the center radius of a side arc R4 screw hole of the cover plate is 2346mm, the radius R6 radius of a semicircular arc screw hole of the cover plate is 473mm plus or minus 0.5mm, and the center distance of the screw hole is less than 195mm; the QX-D-9 general furnace shell is changed in certain size or is completely changed to derive a new size type furnace shell, the number code of the new furnace shell and the accurate magnitude of the size change are that the size is amplified to 1.1 times or reduced to 0.9 times, the value 4 of the position after the decimal point is generated by the amplification or reduction calculation is not discarded by 5, the positive tolerance range is +2mm, and the negative tolerance range is-5 mm; the general type is sequentially and continuously amplified by 1.1 times for a certain size or all sizes or sequentially and continuously contracted by 0.9 times for a plurality of times, namely a plurality of expansion models of QX-D-00 to QX-D-99 are derived, the number is 0 and is a reduction model, and the number is an integer and is an expansion model.
The hearth masonry tooth occlusion lining brick type is a general brick type, the general brick type codes are QX9-1, QX10-1, QX14-1 and QX15-1, the general brick type zipper brick QX9-1 has a height H1 scale of 112mm, a small arc L1 of a sector is 69.5mm in brown length, a side length of a sector L2 is 20.5mm, a value of a thickness L3 is 45mm, a distance between centers L4 of two concave grooves is 40mm, a distance between centers L5 of two convex circles is 20mm, a value of a sealing bulge L6 is 1mm, an included angle of a sector angle 1 is 10.8 degrees, a radius of a sector arc R1 is 375mm, a radius of a concave groove circle R2 is 8mm, and a radius of a convex circle R3 is 6mm; the general brick-type zipper wall QX10-1 has a height H2 of 100mm, an electrothermal belt groove H3 of 30mm, an electrothermal belt groove L7 of 11mm in depth and a thickness L8 of 92.5mm. The brown length of the sector large arc L9 is 90.5mm, the distance between the centers L10 of the two concave grooves is 57.8mm, the distance between the centers L11 of the two convex circles is 36mm, the distance between the sealing bulges L12 is 1mm, the side length of the sector surface L13 is 58mm, the angle 2 of the sector is 10.8 degrees, the radius 488mm of the sector large arc R4, the radius 7mm of the concave groove circle R5 and the radius 7mm of the convex circle R5; the general brick-type side zipper brick QX14-1 has the dimensions of height H1 of 112mm, the minor arc L1 of a sector is 46mm long, the side length of the sector L2 is 20.5mm, the value of thickness L3 is 45mm, the distance between circle centers L4 of two concave grooves is 40mm, the distance between the centers L5 of two convex circles is 20mm, the distance between sealing bulges L6 is 1mm, the included angle of sector angle 1 is 2.3 degrees, the radius of the sector arc R1 is 2299mm, the radius of the concave groove circle R2 is 8mm, and the radius of the convex circle R3 is 6mm; the general brick-type side zipper wall QX15-1 has a height H2 of 100mm, an electrothermal belt groove H3 of 30mm, an electrothermal belt groove L7 of 11mm in depth and a thickness L8 of 92.5mm. The brown length of the sector large arc L9 is 95.5mm, the distance between the centers L10 of the two concave grooves is 73.8mm, the distance between the centers L11 of the two convex circles is 53.4mm, the distance between the sealing bulges L12 is 1mm, the side length of the sector surface L13 is 58mm, the angle 2 of the sector is 2.3 degrees, the radius 2412 of the sector large arc R4 is 7mm, the radius 7mm of the concave groove circle R5 is 7mm, and the radius 7mm of the convex circle R5 is formed; the whole size of the general brick shape or a certain size change derives a new size model, the accurate magnitude of the new size change is amplified to 1.1 times or reduced to 0.9 times, the value 4 of the one position after the decimal point is generated by amplification or reduction calculation is not discarded by 5, and the positive tolerance range is +0.5mm negative tolerance range is-1 mm; the general type is sequentially and continuously amplified for 1.1 times or sequentially and continuously contracted for 0.9 times in a certain size or all sizes, namely, more than one expansion model of QX-D-00 to QX-D-99 is derived, the number is 0 as the reduction model, and the number integer is the expansion model.
The beneficial effects of the invention are as follows:
1. the electric heating belt is laid in the electric heating belt groove of the zipper wall, so that the inner refractory material can be baked before a hearth in the baking process, and the tendency of water molecules to diffuse to the furnace shell is reduced. 2. Expansion or contraction according to sizeAnd (3) reducing the multiplying power by a certain multiplying power, deriving new size models, and fixing the number of the new size models as standard, wherein the number of the new size models is more or less, the new size models are regular and not messy, and the commonly accepted size models can be fixed as standards. 3. ZrO is adopted for zipper bricks and hearth bricks 2 The service life of the casting die-casting furnace is theoretically infinitely long, the casting die-casting furnace can be used for hundreds of years in combination with the external condition that the metal furnace shell is never oxidized and corroded in the dry service environment, the service life of the casting die-casting furnace is 110-20 times longer than that of a casting die-casting furnace, and hundreds of enterprises start from hundreds of years of products. 4. The longitudinal and transverse two-dimensional direction adjusting device can adjust the center of the movable fixed casting nozzle at any point in a limited range, and ensures that the pouring gate of the die-casting furnace is concentric with the casting nozzle of the die-casting machine die. 5. The U-shaped shell wall with the appearance similar to the duck egg round shape is of a double-layer plate structure, and the double-layer inclined surface cover plate is connected with the double-layer conical surface cover plate to form the frustum shell with the duck egg round shape, and the double-layer plate structure part is suitable for extracting vacuum to realize the theoretical best heat preservation and save electric energy. 6. The zipper brick zipper mode teeth are meshed on the furnace wall structure, the thickness of the lining is greatly reduced without falling off, and the ZrO is expensive 2 The material consumption is greatly reduced, the cost is reduced, the selling price is greatly reduced, and the ZrO with infinitely long service life is obtained 2 The material furnace wall is not sticky to aluminum, is good and inexpensive, and has great market competitiveness; in addition ZrO 2 As a bottom thermal liner, the metal ceramic is used for replacing extremely expensive metal ceramic to realize invasive heating, the obstruction of the invasive heating popularization of the metal ceramic is skillfully bypassed, two thirds of energy is saved easily, and the technology is not found worldwide at present. ZrO (ZrO) 2 Although not as good as the cermet, the melting point of 2700 ℃ has chemical stability and high temperature mechanical properties comparable to those of the cermet. ZrO (ZrO) 2 The aluminum-ceramic bowl is used in an environment with 700 ℃ of aluminum water, is not different from the hot boiled water contained in the ceramic bowl, and has an infinitely long service life. Is suitable for use as heat preserving furnace, melting furnace, transfer tank, casting ladle, etc.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of a zipper-substrate hot-hearth furnace can of the present invention;
FIG. 2 is a schematic view of section A-A of FIG. 1;
FIG. 3 is a schematic elevational view of the FIG. 1;
FIG. 4 is a schematic top view of FIG. 3 or 1;
FIG. 5 is a schematic top view of FIG. 4 with the oven cover plate removed;
FIG. 6 is a schematic top view of FIG. 5 with the cover flange and cone removed;
FIG. 7 is a three view of the above-the-mouth composite brick of FIG. 6;
FIG. 8 is a schematic view in horizontal cross section of the horizontal centerline of the furnace mouth of FIG. 1;
FIG. 9 is a schematic top view of the combination wall of the zipper brick and zipper wall of FIG. 8;
FIG. 10 is a schematic top view of the side zipper brick and side zipper wall assembly of FIG. 8;
FIG. 11 is a schematic illustration of the dimensioning of the zipper brick and zipper wall of FIG. 9;
FIG. 12 is a schematic illustration of the side zipper brick and side zipper wall of FIG. 10;
FIG. 13 is an enlarged schematic view of the heat and pressure assembly of FIG. 2 in section;
FIG. 14 is an enlarged schematic view of section B-B of FIG. 13;
FIG. 15 is an enlarged schematic view of the insulating tube section of FIG. 14;
FIG. 16 is an enlarged schematic view of the cross-section of the Y-shaped brick of FIG. 14;
FIG. 17 is an enlarged schematic cross-sectional view of the dielectric seat of FIG. 14;
FIG. 18 is a schematic view of another embodiment of the midsole thermal pressure assembly of FIG. 13;
FIG. 19 is a schematic view showing the exterior of another embodiment of the zipper substrate heating furnace of FIG. 1;
FIG. 20 is a schematic top view of FIG. 19;
FIG. 21 is a schematic cross-sectional view of FIG. 19;
FIG. 22 is a schematic view of section F-F of FIG. 21;
FIG. 23 is a schematic view in section E-E of FIG. 21;
FIG. 24 is a left side view of FIG. 19;
FIG. 25 is a schematic top view of the furnace floor of FIG. 19;
FIG. 26 is an enlarged schematic view of the oven door of FIG. 21;
FIG. 27 is a schematic cross-sectional view of the second embodiment of FIG. 1;
FIG. 28 is a schematic cross-sectional view of the third embodiment of FIG. 1;
fig. 29 is a schematic tooth-engaging brand name plate pattern view of fig. 3 and 19.
In the drawings. Cover plate 2 arc arch ring brick 3 combined brick 4 then arc arch ring brick 5 arc heat preservation brick 6 furnace top brick 7 side arc heat preservation brick 8 front flat bottom block 9 zipper brick 10 zipper wall 11 side arc combined heat preservation brick group 12 arc combined heat preservation brick group 13 flat bottom block 14 side zipper brick 15 side zipper wall 16 front oblique bottom block 17 middle oblique bottom block 18 lower oblique bottom block 19 electric heating belt 20 top pressure flange 21 shrouding plate 22 insulating tube 23 electric heating body 24Y-shaped brick 25 dielectric seat 26 rebound ring 27 pressure ring 28 fiber elastic body 29 insulating tube spring 30Y-shaped brick spring 31 electric heating belt groove 32 sealing arc surface 34 cylindrical surface 35 plane 36 lower arc surface 37 support arc surface 38 furnace cover heat preservation block 39 sealing powder 40 inner Y surface 41 outer Y surface 42 concave-convex surface 43 trademark nameplate 44 top wire 45 pressing ring 46 heating box 47 junction box 48 hoop 49 furnace bottom insulating brick 50 cone-shaped shell plate 51 crotch part 52 semi-circular arc plate 53 side circular arc plate 54 furnace bottom brick 55 screw hole 56 head bolt 57 casting mouth center 58 arc wall block 59 hoop 60 cover mouth arc block 61 contact rod 62 sliding plate 63, gravity hammer 64 spherical block 65 cover mouth side arc block 66 seal 67 side arc wall block 69 cover mouth arc angle block 70 tank cap 71 tank mouth 72 soft insulating casting material 73 tank top 74 pedal 75 lifting lug 76 tank mouth flange 77 hollow ball wall 78 sealing head 78 tank shell 81, 81 nozzle 81 feed inlet 82 nozzle 83 combustion chamber 84 regenerator 85 shell bottom plate 86 cover flange 87 seal groove 88 vacuum conical surface cover plate 90 furnace mouth plate bottom plate 95 inclined plate 96 device screw 97 adjusting screw 98 furnace bottom plate 152 Vacuum semicircular arc plate 153 is a vacuum side arc plate.
Detailed Description
Reference will now be made to the accompanying drawings. Fig. 1 to 29 illustrate the general concept of the present invention, and fig. 1 to 18 illustrate the general structure and construction method of a furnace housing and a bottom heating furnace. The top view appearance of the furnace shell wall is similar to a duck egg round gap, and the furnace shell wall of the duck egg round gap is a semicircular arc plate 52 and two side circular arc plates 53Cutting, connecting and forming, wherein the arc segment of the side arc plate 53 is connected with a furnace mouth plate 90, the furnace mouth plate 90 is embedded with a cone furnace mouth, and the cone furnace mouth is provided with a cone furnace door; the furnace shell wall is provided with a junction box 47 of the electric heating belt 19, an electric heating rod heating box 46 and a trademark nameplate 43; the upper opening of the duck egg-shaped furnace shell is embedded with a cone-shaped shell 50, the center of the cone-shaped shell 50 is embedded with a flange of a furnace shell cover plate 1, the flange is connected with a cover plate 1 through bolts, a stainless steel screw sleeve is embedded in a flange screw hole 55, and the bolts fasten the cover plate 1 through the screw sleeve; the top layer masonry built below the furnace shell cover is that arc arch ring bricks 4 and arc arch ring bricks 2 are built on two sides of a combined brick 3 above the furnace mouth, cover plate mouth holes are formed by surrounding the arc arch ring bricks 2, the arc arch ring bricks 4 and the combined brick 3, cover plate mouth holes are inlaid with cover plate bricks 6, and side arc insulating bricks 7 and arc insulating bricks 5 are built outside the cover plate mouth hole ring bricks on the periphery of the cover plate bricks 6; the hearth part is built below the upper layer furnace roof bricks 6, the furnace wall formed by integrally forming teeth in the form of four brick type zippers is built in the furnace hearth part, the furnace wall zipper teeth are meshed to form a duck egg-shaped U-shaped furnace wall inner ring formed by combining zipper bricks 9 and side zipper bricks 14, the U-shaped furnace wall outer ring is provided with a zipper wall 10 and a side zipper wall 15 formed by zipper teeth, and the duck egg-shaped U-shaped furnace wall outer ring of the combined furnace wall is formed; the U-shape of the duck egg round notch of the furnace wall is similar to the shape of the duck egg round notch of the furnace shell, and the periphery of the furnace wall similar to the duck egg round notch of the furnace shell is built with a side arc combined heat-insulating brick group 11 and an arc combined heat-insulating brick group 12; the bottoms of the zipper wall 10 and the side zipper wall 15 are provided with electric heating belt grooves 31, electric heating belts 19 are laid in the electric heating belt grooves 31, and wiring sections of the electric heating belts 19 are led into flat belt electric heating body junction boxes 47; sealing powder 39 is filled in the meshing gaps between the zipper bricks 9 and the zipper wall 10 and between the side zipper bricks 14 and the side zipper wall 15, and the combination toothed chains of the four bricks are also provided with sealing felts 32 for blocking the loss of the sealing powder 39; below the U-shaped lining furnace wall ring with a duck egg-shaped notch is built a furnace bottom insulating brick 49 with a furnace bottom brickwork of a heating device, and a combined brickwork of a technical scheme of a bottom heating device is built on an insulating pipe of the furnace bottom insulating brick 49, wherein the combined brickwork of the technical scheme is that an electric heating body 23 is sleeved with an insulating pipe 22, a cylindrical surface 34 is arranged on the inner surface of the insulating pipe 22, and the insulating pipe 22 of the cylindrical surface 34 rebound through sealing The ring 26 is butt-jointed and installed on the dielectric seat 25, two sides of the dielectric seat 25 are provided with a biting concave-convex surface 42, the biting concave-convex surfaces 42 of two adjacent dielectric seats 25 are bitten and fixed with root concave-convex surfaces 42 of a Y-shaped brick 24, the root concave-convex surfaces 42 are bitten and fixed with arc-shaped crotch 51 of the upper part of the Y-shaped brick 24 vertically by the biting of the dielectric seat 25, the dielectric seat 25 group combination layer vertically fixed with the Y-shaped brick 24 is built on a brickwork of a furnace bottom insulating brick 49, a dielectric seat 25 supporting cambered surface 37 on the brickwork lifts a lower cambered surface 36 of an insulating tube 22, the lower cambered surface 36 is intersected with the lower boundary of two planes 35, the upper boundary of the two planes 35 intersecting with the lower cambered surface 36 is tangent with an upper cambered surface 33, the axis of the upper cambered surface 33 at the upper edge of the tangent two planes 35 is coaxial with the arc-shaped crotch 51 of the vertical Y-shaped brick 24, and the insulating tube 22 is quartz glass or Al 2 O 3 The high temperature sintered product, the arc crotch 51 is connected with the sealing plate 21, the gap between the insulating tube 22, the crotch brick 24 and the dielectric seat 25 is filled with sealing powder; the insulating tube 22 and the Y-shaped brick 24 are connected in a multi-section plane to form a long-length pipeline in a combined mode, the long-length pipeline is connected into a whole through pressure sealing given by two ends, an electrothermal body 23 is arranged in a central hole of the long-length pipeline insulating tube 22, the electrothermal body 23 is made of silicon carbide or graphite electrodes, the insulating tube 22 provided with the electrothermal body 23 is provided with rebound rings 26 at two end sections, and the top pressing flange 20 is connected with sealing pressure through the rebound rings 26 from the two ends to the plane connection combination of the middle long-length pipeline insulating tube 22 to realize sealing; the insulating tube 22 insulating tube outside the insulating tube the Y-shaped brick 24 has pressure rings 27 and rebound bodies 28 in two end sections, the jackscrew transmits the top pressure to the rebound bodies 28 through the pressure rings 27, the rebound bodies 28 transmit the top pressure to the pressure rings 27 connected with the Y-shaped brick 24, the pressure rings 27 transmit the top pressure to the plane connection combination of the Y-shaped brick 24, apply the connection sealing pressure to realize the seal; another specific embodiment of the sealing technical scheme is that the top pressure flange 20 applies connection sealing pressure to the plane connection combination of the middle insulating tube 22 from two ends through the insulating tube spring 29 to realize sealing; the jackscrew conducts the jacking force to apply the connection sealing pressure to the plane connection combination of the Y-shaped bricks 24 through the Y-shaped brick springs 30 to realize sealing; the fillets of the two inner crotch faces 40 of the crotch-shaped brick 24 are excessively intersected, the included angle of the two inner crotch faces 40 is 60 degrees, the included angle of the two outer crotch faces 41 is 38 degrees, and the two outer crotch faces 41 are tangent A crotch concave-convex surface 42, wherein the crotch concave-convex surface 42 is engaged with and inlaid in the concave-convex surface 42 of the dielectric base 25, and the crotch brick 24 is made of ZrO 2 Manufacturing.
Fig. 19-26 show an embodiment of another embodiment of the invention. The furnace shell is manufactured by respectively forming an upper section, a middle section and a bottom section and then synthesizing the upper section, the middle section and the bottom section, building furnace materials in the furnace shell after the furnace shell is manufactured to form a complete die-casting furnace, firstly, forming the combined middle section of the furnace shell, forming the middle section by tangentially connecting and combining two arc plates of a double-layer vacuum semi-arc plate 152 and a double-layer vacuum side arc plate 153, forming a U-shaped wall plate with an appearance similar to a duck egg shape, connecting a furnace mouth plate 90 with the opening part of the U-shaped wall plate, forming a closed annular shell wall by the U-shaped wall plate connected with the furnace mouth plate 90, forming an elliptical furnace mouth on the furnace mouth plate 90 of the shell wall, forming a double-layer plate structure on the shell wall with the elliptical furnace mouth, arranging heating boxes 46 on two sides of the shell wall with the double-layer plate structure, and fastening and sealing covers of the arc heating boxes 46 at two ends by Y-shaped bolts 56; step two, air is pumped out of the shell wall of the double-layer plate structure to realize a vacuum state, a furnace door is arranged on a furnace mouth arranged on the shell wall in the vacuum state, a sealing pressing ring 45 is arranged in a sealing groove of the furnace door, a jackscrew 44 is arranged on the pressing ring 45 to press the pressing ring 45, the pressing ring 45 pressed by the jackscrew is tightly pressed to seal 66 to be tightly sealed with a furnace mouth plate 90, and the middle section is molded; step three, forming the upper section of the furnace shell, wherein the upper section is formed by connecting a double-layer vacuum inclined surface cover plate 88 with a double-layer vacuum conical surface cover plate 89 to form a conical table shell with a duck egg-shaped appearance in a combined mode, a connecting cover flange 86 is embedded in an upper opening ring of the conical table shell, the cover flange 86 is connected with a furnace cover 1 with a sealing groove 87 in a bolt manner, stainless steel bolts penetrate through bolt holes uniformly distributed on the edge of the furnace cover 1 and penetrate through stainless steel wire sleeve screw holes 55 embedded in the cover flange 86 to be tightly sealed, a cover heat-insulating block 21 and a hoop 24 of the heat-insulating block are arranged below the sealed furnace cover 1, the furnace cover heat-insulating block 21 is embedded in the hoop 24, and the upper section is formed; step four, forming a bottom section of a furnace shell combination, wherein in the first step of forming the bottom section, a double-curved plate 92 is connected with a spherical plate 93 to form a U-shaped double-curved surface bottom section plate shell with a duck egg-shaped appearance, a lower opening of the bottom section plate shell is connected with an inclined bottom plate 95 and a shell bottom plate 85 to form a furnace bottom section shell in a combined mode, in the second step, the furnace bottom section shell is connected with a furnace bottom plate 98 through a bottom ring 91, a movable plate 99 provided with a movable positioning hole 42 is connected below the furnace bottom plate 98, the movable plate 99 is movably connected with the furnace bottom plate 98 through a longitudinal and transverse two-dimensional direction adjusting device, a transverse connecting adjusting device screw 96 is used for adjusting and fixing the center distance NL between the center of the two positioning holes 42 and a casting hole center 57, a longitudinal and transverse two-dimensional direction adjusting device is used for adjusting and transverse two-dimensional direction adjusting the center 40 to be at any point in a limited range, concentricity of a casting furnace gate and a casting hole of a die casting machine die can be ensured, and a universal die casting machine with several tonnage, and a universal substrate furnace is installed in any die casting machine with a universal die casting machine, and a universal die casting machine is suitable for die casting machine, and the forming of the furnace shell combination is finished; step five, the upper, middle and bottom three sections of the furnace shell are integrally synthesized into a complete furnace shell, the first step, the upper section is embedded and connected in an upper opening ring of the middle section, the embedding depth is 15-50mm, the lower opening of the middle section in the second step is butted into a well-formed bottom section, and after the bottom section is butted and welded with the middle and upper sections, the furnace shell, the middle and bottom three sections are integrally synthesized into a complete zipper substrate furnace shell; step six, constructing tooth occlusion liners and heat insulation material blocks in a hot bottom furnace shell of a zipper lining, wherein in the first step a, constructing a front oblique bottom block 16, a middle oblique bottom block 17, a lower oblique bottom block 18, a front flat bottom block 8, a flat bottom block 13, a spherical block 64, an arc wall block 58 and a side arc wall block 67 of the furnace bottom heat insulation block, in the second step, paving an arc insulating tube 22 with an electric heating body 23 inside, inserting gravity contact rods 61 into two end sections of the insulating tube 22, conducting the lower sections of the contact rods 61 to the electric heating body 23 in a contact manner, conducting the upper sections of the contact rods 61 electrically conducted to the electric heating body 23 to be connected with a power supply cable in a heating box 46, conducting the contact rods 61 connected with a cable in a gravity manner to press the electric heating body 23 in a conductive manner, protecting the two ends of the arc insulating tube 22 by two insulating ceramic plates relatively pressing the two ends of the arc insulating tube 22 from shrinkage and breaking, and preventing shrinkage and breaking forces from the gravity hammer 63 connected with an insulating plug, enabling the gravity hammer 63 to move in parallel with the gravity contact rods 61 along the 62, conducting the gravity hammer 63 to the gravity contact rods 61 to be connected with the power supply cable pins, and conducting the electric heating box 46 to be connected with the power supply cable to the power supply cable in the heating box 46 to be connected with the nitrogen gas, and the nitrogen gas flowing into the box to the pressure Pa 1000; the electrothermal body 23 wrapped by the arc insulating tube 22 is a carbon fiber or graphite electrode section, the two ends of the ink electrode section are in a concave or convex spherical shape, and the ink electrode sections with the two ends in the spherical shape are combined into the arc electrothermal body 23 by using a plurality of sections; an electric heating body 23 wrapped by the arc-shaped insulating tube 22 or a spiral electric heating body 23 formed by curling a flat belt of the electric heating belt 23; third, building the bottom bricks 54, the zipper bricks 9 and the side zipper bricks 14, c, pouring alumina hollow sphere pouring materials between the zipper bricks 9, the side zipper bricks 14 and the heat insulation blocks; step four, a, building a cover opening arc block 60, a cover opening side arc block 65 and a cover opening arc angle block 69 to form a hole of a cover opening ring, embedding a cover heat-insulating block 38 in a hoop 59 of the hole of the cover opening ring, and embedding the cover heat-insulating cover of the hoop 59 embedded with the cover heat-insulating block 38 in the hole of the cover opening ring; after the fastening bolt of the furnace cover 1 is covered, pouring heat insulation block materials in the cavity inside the furnace door 90, and ending the manufacturing process of the zipper lining hot-bottom furnace; after the manufacture, the furnace shell is nailed with a concave convex tooth-engaged indication ring trademark nameplate 43.
Fig. 27 shows a specific embodiment of the second embodiment of the invention. The zipper brick 9 is also suitable for an aluminum liquid transfer tank or ladle, the ladle or transfer tank of the zipper brick 9 is used, the teeth of the zipper brick 9 are meshed in a hollow ball wall ring 77 formed by casting a hollow ball, a bottom brick 54 is laid below the hollow ball wall ring 77, an insulating tube 22 penetrating through an electric heating body 23 is laid below the bottom brick 54, joints 78 of the electric heating body 23 are extended out from two ends of the insulating tube 22, two ends of the insulating tube 22 extending out from the joints 78 are arranged in a junction box 47, and the joints 78 in the junction box 47 are electrically connected with a common electric cable; the transferring tank or ladle shell 79 is provided with a tank leg 80 for supporting, the inside of the shell 79 supported by the tank leg 80 is provided with a soft heat-insulating castable 72 for wrapping and supporting the hollow ball wall ring 77 and the hearth brick 54, and the hearth brick 54 and the zipper brick 9 are made of ZrO 2 Shaping the material, zrO 2 The transfer tank or the casting ladle inner cavity formed by the materials is used for containing aluminum liquid, a tank opening flange 76 is arranged on the transfer tank or the casting ladle shell for containing the aluminum liquid and is connected with a tank top 73 through bolts, a lifting lug 75 is arranged on the outer edge of the tank top 73, a shell cover cone-shaped shape is arranged on the tank top 73 provided with the lifting lug 75, a tank opening 71 and an annular pedal 74 are arranged on the cone-shaped shell cover, a tank cap 70 is arranged in the middle of the annular pedal 74, The outer shell of the can cap 70 is elliptical.
Fig. 28 shows a specific embodiment of the third embodiment of the invention. The zipper lining hot-substrate furnace is used as a melting furnace, a zipper lining hot-substrate furnace shell used as the melting furnace is manufactured by respectively forming an upper section, a middle section and a bottom section and then synthesizing, and a furnace material is built in the furnace shell after the furnace shell is manufactured to form a complete tooth-meshed lining hot-substrate melting furnace; the tooth-biting substrate melting furnace is different from the tooth-biting substrate in that: a secondary combustion chamber 83 is paved at the bottom of the furnace, a nozzle 82 is arranged above the furnace mouth, and the nozzle 82 sprays fuel gas and combustion-supporting gas O 2 The four nozzles 82 are divided into two groups, the two groups of nozzles 82 are respectively in pipeline fluid communication with the two groups of combustion chambers 83, the two groups of combustion chambers 83 in pipeline fluid communication are respectively in pipeline connection with the four regenerators 84, the four regenerators 84 in pipeline connection are respectively in one group of two regenerators 84, and each group of two regenerators 84 is in one-to-one fluid communication with the two groups of nozzles 82 of fuel gas or combustion-supporting gas O 2 The method comprises the steps of carrying out a first treatment on the surface of the One group of nozzles 82 outputs high-temperature reducing exhaust gas from the combustion of the other group of nozzles, and the output reducing exhaust gas is delivered to the combustion chamber 83 and combustion-supporting gas O 2 The mixed secondary combustion is neutral or peroxidized, the combustion heat passes through the bottom of the tube wall heating furnace of the combustion chamber 83, the heat exchange area of bottom aluminum liquid heating and liquid level flame heating is larger than that of single liquid level or submerged liquid, the efficiency is high, the speed of melting the solid aluminum into liquid state can be accelerated, the high-temperature tail gas after secondary combustion is distributed to different heat storage chambers 84 by reversing the reversing valve for heat storage, and the stored waste heat is utilized for preheating fuel gas and combustion-supporting gas O 2 The method comprises the steps of carrying out a first treatment on the surface of the The regenerative chambers 84 respectively store the four nozzles 82 for reversing the preheated fuel gas and the combustion-supporting gas O 2 Gas preheated by the regenerator 84 and combustion-supporting gas O 2 And the high-temperature reducing tail gas is respectively conveyed to the corresponding nozzles 82 for combustion through pipelines, one group of nozzles 82 outputs high-temperature reducing tail gas generated by the combustion of the other group of nozzles 82, and the high-temperature reducing tail gas is converted into the high-temperature reducing tail gas generated by the combustion of the other group of nozzles 82 through reversing valves, and the high-temperature reducing tail gas is output by the one group of nozzles 82.
Fig. 29 shows a trademark pattern of the invention.
9-10 show the model and the size of a furnace shell, wherein the furnace shell is universal, the model code of the universal furnace shell is QX-D-09, D in the code represents a bottom heating furnace, if D in the code is changed into S to be a common upper heating furnace, if the common upper heating furnace is represented by SB and is provided with furnace wall heating, the bottom heating furnace is represented by DB and is provided with wall heating, the upper plane elevation C1297 mm+/-3 mm of the universal furnace shell, the elevation B913 mm+/-3 mm of the center of the furnace mouth, the elevations C and B are all based on the elevation A+/-0 mm of the bottom plane, the longitudinal hearth depth of the center line of the furnace mouth is 1785 mm+/-5 mm, the longitudinal maximum contour length 2150 mm+/-5 mm of the center line of the furnace mouth is equal to the center line of the furnace mouth, the maximum contour R1 side arc radius 2650 mm+/-5 mm, the maximum contour R2 semicircle radius R775 mm+/-3 mm, the thicknesses of the semicircle plates 52 and the two side plates 53 are equal to each other, the thicknesses of the center arc plates 1mm of the center of the arc plates 1, the arc cover plate 1.3 mm of the center of the arc plates 1mm, the arc diameters 1mm of the arc plates 1.3 mm of the screw hole 1, and the arc cover plates 1.3 mm of the arc diameters 1.3 mm of the center plates 2, and the arc diameters 1.3 mm of the cover plates 2mm of the center plates; the QX-D-9 general furnace shell is changed in certain size or is completely changed to derive a new size type furnace shell, the number code of the new furnace shell and the accurate magnitude of the size change are that the size is amplified to 1.1 times or reduced to 0.9 times, the value 4 of the position after the decimal point is generated by the amplification or reduction calculation is not discarded by 5, the positive tolerance range is +2mm, and the negative tolerance range is-5 mm; the general type is sequentially and continuously amplified by 1.1 times for a certain size or all sizes or sequentially and continuously contracted by 0.9 times for a plurality of times, namely a plurality of expansion models of QX-D-00 to QX-D-99 are derived, the number is 0 and is a reduction model, and the number is an integer and is an expansion model.
The tooth-biting lining and the furnace wall brick are in four brick sizes and models, the tooth-biting lining built in the furnace is in a general brick type, the general brick type codes are QX9-1, QX10-1, QX14-1 and QX15-1, the zipper brick 9 QX9-1 of the general brick type is 112mm in height H1 scale, the small arc L1 of the sector is 69.5mm in brown length, the side length of the sector L2 is 20.5mm, the thickness L3 is 45mm, the distance between the centers L4 of the two concave grooves is 40mm, the distance between the centers L5 of the two convex circles is 20mm, the sealing bulge L6 is 1mm, the included angle of the sector is 10.8 degrees, the radius of the circular arc R1 of the sector is 375mm, the radius of the concave groove R2 is 8mm, and the radius of the convex circle R3 is 6mm; the general brick-type zipper wall 10QX10-1 has a height H2 of 100mm, an electrothermal belt groove 31, a height H3 of 30mm, an electrothermal belt groove 31, a depth L7 of 11mm and a thickness L8 of 92.5mm. The brown length of the sector large arc L9 is 90.5mm, the distance between the centers L10 of the two concave grooves is 57.8mm, the distance between the centers L11 of the two convex circles is 36mm, the distance between the sealing bulges L12 is 1mm, the side length of the sector surface L13 is 58mm, the angle 2 of the sector is 10.8 degrees, the radius 488mm of the sector large arc R4, the radius 7mm of the concave groove circle R5 and the radius 7mm of the convex circle R5; the general brick-type side zipper brick 14QX14-1 has a height H1 of 112mm, a small arc L1 of a sector surface of 46mm in brown length, a side length of a sector surface L2 of 20.5mm, a thickness L3 of 45mm, a distance between two concave groove centers L4 of 40mm, a distance between two convex centers L5 of 20mm, a distance between a sealing bulge L6 of 1mm, an included angle of 2.3 degrees of sector angle 1, a radius of 2299mm for a sector arc R1, a radius of 8mm for a concave groove circle R2, and a radius of 6mm for a convex circle R3; the general brick-type side zipper wall 15QX15-1 has a height H2 of 100mm, an electrothermal belt groove 31, a height H3 of 30mm, an electrothermal belt groove 31, a depth L7 of 11mm and a thickness L8 of 92.5mm. The brown length of the sector large arc L9 is 95.5mm, the distance between the centers L10 of the two concave grooves is 73.8mm, the distance between the centers L11 of the two convex circles is 53.4mm, the distance between the sealing bulges L12 is 1mm, the side length of the sector surface L13 is 58mm, the angle 2 of the sector is 2.3 degrees, the radius 2412 of the sector large arc R4 is 7mm, the radius 7mm of the concave groove circle R5 is 7mm, and the radius 7mm of the convex circle R5 is formed; the whole size of the general brick shape or a certain size change derives a new size model, the accurate magnitude of the new size change is amplified to 1.1 times or reduced to 0.9 times, the value 4 of the one position after the decimal point is generated by amplification or reduction calculation is not discarded by 5, and the positive tolerance range is +0.5mm negative tolerance range is-1 mm; the general type is sequentially and continuously amplified by 1.1 times for 1.9 times for 0.9 times for a certain size or all sizes, namely, a plurality of expansion models of QX-D-00 to QX-D-99 are derived from a plurality of times, the number is preceded by 0 and is a reduction model, and the number is an expansion model.
Claims (2)
1. A zipper-backed hot-bottom oven can having a body comprising: the furnace comprises a furnace shell, a furnace door, a top layer of brickwork, a furnace bottom brickwork with a heating device, and a tooth of a hearth part is meshed with a lining brick type brickwork of the furnace, and is characterized in that: the duck egg-shaped arc-shaped furnace shell wall is tangent to the arc plates (52) at two sides and the arc plates (53)The circular segments of the arc plates (53) on the tangent forming side are connected with a furnace mouth plate (90), the furnace mouth plate (90) is inlaid with a conical furnace mouth, and the conical furnace mouth is provided with a conical furnace door; a junction box (47) and an electric heating rod heating box (46) of an electric heating belt (19) and a trademark nameplate (43) are arranged on the wall of the furnace shell; the upper opening of the duck egg-shaped furnace shell wall is embedded with a conical shell plate (50), the center of the conical shell plate (50) is embedded with a flange of a furnace shell cover plate (1), the flange is connected with a cover plate (1) through bolts, a stainless steel screw sleeve is embedded in a flange screw hole (55), and the cover plate (1) is fastened through a screw sleeve through the bolts; the top layer masonry built below the furnace shell cover is that side arc arch ring bricks (4) and arch ring bricks (2) are built on two sides of a combined brick (3) above the furnace mouth, the arch ring bricks (2), the side arc arch ring bricks (4) and the combined brick (3) surround a cover plate hole opening, a furnace roof brick (6) is inlaid at the cover plate hole opening, and side arc insulating bricks (7) and arc insulating bricks (5) are built outside the cover plate hole ring bricks on the periphery of the furnace roof brick (6); the furnace is characterized in that a furnace chamber part is built below a furnace top brick (6), a furnace wall is built in a furnace chamber part, teeth in the form of four brick type zippers are meshed and formed into an integral furnace wall, the furnace wall zipper teeth are meshed to form a duck egg-shaped furnace wall inner ring by combining a zipper brick (9) and a side zipper brick (14), a zipper wall (10) and a side zipper wall (15) are arranged on a furnace wall outer ring by the zipper teeth, and the duck egg-shaped furnace wall outer ring of the furnace wall is formed in a combined mode; the shape of the duck egg round notch of the furnace wall is similar to the shape of the duck egg round notch of the furnace shell, and the periphery of the furnace wall with the similar duck egg round notch of the furnace shell is built with a side arc combined insulating brick group (11) and an arc combined insulating brick group (12); the zipper wall (10) and the side zipper wall (15) are provided with an electric heating belt groove (31), an electric heating belt (19) is laid in the electric heating belt groove (31), and a wiring section of the electric heating belt (19) is led into a flat belt electric heating body junction box (47); sealing powder (39) is filled in the meshing gaps between the zipper bricks (9) and the zipper walls (10) and between the side zipper bricks (14) and the side zipper walls (15), and the sealing powder (39) is blocked by sealing felts (32) on the same sides of the chain bricks and the chain seat in a fan shape; the combined brickwork that is built under the duck egg-shaped furnace wall ring is a furnace bottom insulating brick (49), and a bottom heating device is built on the furnace bottom insulating brick (49), and the combined brickwork is that an electric heating body (23) is sleeved with an insulating tube (22), the inner surface of the insulating tube (22) is provided with a cylindrical surface (34), and the insulating tube (22) of the cylindrical surface (34) and the insulating tube (22) pass through a sealing rebound ring [ 26 The combined masonry of the Y-shaped bricks (24) which are vertically fixed by the occlusion of the dielectric seats (25) is built on the masonry of the furnace bottom insulating bricks (49), the cambered surface (37) of the dielectric seat (25) on the masonry lifts the lower cambered surface (36) of the insulating tube (22), the lower cambered surface (36) is intersected with the lower boundary of the two planes (35), the upper boundary of the two planes (35) intersecting the lower cambered surface (36) is tangent with the upper cambered surface (33), the axes of the upper cambered surfaces (33) at the upper edges of the two planes (35) are coaxial with the arc-shaped crotch (51) of the vertical Y-shaped bricks (24), and the insulating tube (22) is quartz glass or Al 2 O 3 The high-temperature sintered product is characterized in that a sealing plate (21) is connected with the arc-shaped crotch part (51), and sealing powder is filled in gaps among the insulating tube (22), the crotch-shaped bricks (24) and the dielectric seats (25); the insulating tube (22) and the Y-shaped brick (24) are connected in a multi-section plane to form a through-length pipeline, the through-length pipeline is connected into a whole through pressure sealing given by two ends, an electric heating body (23) is arranged in a central hole of the through-length pipeline insulating tube (22) which is connected into a whole through pressure sealing, the electric heating body (23) is made of silicon carbide or graphite electrodes, rebound rings (26) are arranged at two end sections of the insulating tube (22) provided with the electric heating body (23), and the top pressure flange (20) applies connection sealing pressure to the plane connection combination of the middle through-length pipeline insulating tube (22) through the rebound rings (26) to realize sealing; the insulating tube (22) is provided with a pressure ring (27) and a rebound body (28) at two end sections, the jackscrew transmits the jacking force to the rebound body (28) through the pressure ring (27), the rebound body (28) transmits the jacking force to the pressure ring (27) connected with the Y-shaped brick (24), the pressure ring (27) transmits the jacking force to the plane connection combination of the Y-shaped brick (24), and the connection sealing pressure is applied to realize sealing; or the top pressure flange (20) applies connection sealing pressure to realize sealing through the plane connection combination of the insulating pipes (22) from two ends to the middle through the insulating pipe spring (29); the jackscrew conducts the jacking force to the plane connection combination of the Y-shaped bricks (24) through the Y-shaped brick springs (30) to apply the connection sealing pressure to realize sealing; the fillets of the two inner Y-shaped faces (40) of the Y-shaped brick (24) are excessively intersected, the included angle of the two inner Y-shaped faces (40) is 60 degrees, the included angle of the two outer Y-shaped faces (41) is 38 degrees, and the two outer Y-shaped faces (41) are tangent to the concave-convex Y-shaped faces A face (42), a Y-shaped concave-convex face (42) is engaged and embedded in the concave-convex face (42) of the dielectric base (25), and the Y-shaped brick (24) is made of ZrO 2 Manufacturing.
2. The zipper-substrate hot hearth can of claim 1, further characterized by: the furnace shell is manufactured by combining an upper section, a middle section and a bottom section after being respectively molded, a furnace material is built in the furnace shell after the furnace shell is manufactured, a complete die-casting furnace is formed, a first step of the complete die-casting furnace is formed, a middle section of a furnace shell combination is firstly formed, the middle section is formed by tangentially connecting and combining two arc plates of a double-layer vacuum semi-arc plate and a double-layer vacuum side arc plate, U-shaped wall plates with a duck egg-shaped appearance are formed, the opening parts of the U-shaped wall plates are connected with furnace mouth plates (90), the U-shaped wall plates connected with the furnace mouth plates (90) form a closed annular shell wall, the furnace mouth plates (90) of the shell wall are formed with oval furnace mouths, the shell wall with the oval furnace mouths is of a double-layer plate structure, heating boxes (46) are arranged on two sides of the shell wall of the double-layer plate structure, the two ends of each heating box (46) are arc-shaped, and covers of the arc-shaped heating boxes (46) at two ends are tightly sealed by Y-shaped bolts (56); step two, air is pumped out from the shell wall of the double-layer plate structure to realize a vacuum state, a furnace door is arranged on a furnace mouth arranged on the shell wall in the vacuum state, a sealing pressing ring (45) is arranged in a sealing groove of the furnace door, a jackscrew (44) is arranged on the pressing ring (45) to push against the pressing ring (45), and the middle section is molded; step three, forming the upper section of the forming furnace shell, wherein a double-layer vacuum inclined surface cover plate (88) is connected with a double-layer vacuum conical surface cover plate (89) to form a conical table shell with a duck egg-shaped appearance in a combined mode, a connecting cover flange (86) is embedded into an upper opening ring of the conical table shell, the cover flange (86) is connected with a cover plate (1) with a sealing groove (87) through bolts, stainless steel bolts penetrate through bolt holes uniformly distributed in the edge of the cover plate (1), the stainless steel bolts penetrate through the cover plate (1) to be screwed into stainless steel wire sleeve screw holes (55) embedded in the cover flange (86) for fastening and sealing, a furnace cover heat insulation block (38) and a hoop (59) of the heat insulation block are arranged below the sealed cover plate (1), the furnace cover heat insulation block (38) is embedded in the hoop (59), and the upper section is formed; step four, forming a bottom section of a furnace shell combination, wherein in the first step of forming the bottom section, a double-curved plate (92) is connected with a spherical plate (93) to form a duck egg-shaped U-shaped double-curved surface bottom section plate shell, a lower opening of the bottom section plate shell is connected with an inclined bottom plate (95) and a shell bottom plate (85) to form a furnace bottom section shell in a combined mode, in the second step, the furnace bottom section shell is connected with a furnace bottom plate (98) through a bottom ring (91), a movable plate (99) provided with a movable positioning hole (94) is connected below the furnace bottom plate (98), the movable plate (99) is movably connected with the furnace bottom plate (98) through a longitudinal and transverse direction adjusting device, a transverse connecting device screw (96) is used for adjusting and fixing the center distance NL between the center distances of the two positioning holes (42) and a casting hole center (57), the longitudinal and transverse direction adjusting device can adjust and move the casting hole center (57) at any point in a limited range, and the concentric die casting hole of a die casting furnace can be ensured, and the formed bottom section of the furnace shell combination is finished; step five, the upper, middle and bottom three sections of the furnace shell are integrally synthesized into a complete furnace shell, the first step, the upper section is embedded and connected in an upper opening ring of the middle section, the embedding depth is 15-50mm, the lower opening of the middle section in the second step is butted into a well-formed bottom section, and after the bottom section is butted and welded with the middle and upper sections, the furnace shell, the middle and bottom three sections are integrally synthesized into a complete zipper substrate furnace shell; step six, tooth-built occluding lining and heat-insulating material blocks are built in a hot bottom furnace shell of a zipper lining, firstly, a front oblique bottom block (16), a middle oblique bottom block (17), a lower oblique bottom block (18) and a front flat bottom block (8), a flat bottom block (13), a spherical block (64), an arc-shaped wall block (58) and a side arc-shaped wall block (67) of the hot bottom furnace shell of the zipper lining are built, secondly, an arc-shaped insulating tube (22) with an electric heating body (23) is laid, gravity contact rods (61) are inserted into two end sections of the insulating tube (22), the lower section of the contact rods (61) is in electric conduction contact with the electric heating body (23), the upper section of the contact rods (61) in electric conduction with the electric heating body (23) is in electric conduction connection with a power supply cable in a heating box (46), the contact rods (61) of the electric conduction cable are pressed by gravity, two ends of the arc-shaped insulating tube (22) wrapped by the electric conduction electric heating body (23) are protected by two opposite pressing arc-shaped insulating hammers (22), the gravity contact rods (22) are prevented from being broken by the two ends of the ceramic plates, the gravity hammer blocks (63) are prevented from being pulled by the gravity force of the ceramic plates (22) to be contacted with the electric heating body (63) in parallel to the electric heating cable (61), and the electric heating cable (63) is prevented from being contacted with the electric heating cable (61), the pressure of nitrogen is 700 Pa to 1000Pa higher than the pressure of the furnace; the electric heating body (23) wrapped by the arc-shaped insulating tube (22) is a carbon fiber or graphite electrode section, both ends of the graphite electrode section are in a concave or convex spherical shape, and the graphite electrode sections with the spherical shapes at both ends use a multi-section combination to form the arc-shaped electric heating body (23); an electric heating body (23) wrapped by an arc-shaped insulating tube (22) or a spiral electric heating body (23) formed by curling a flat belt of an electric heating belt (19); step three, building a bottom brick (54), a zipper brick (9) and a side zipper brick (14), and pouring alumina hollow sphere pouring materials between the zipper brick (9), the side zipper brick (14) and the heat insulation block; fourth, building a cover opening arc block (60), a cover opening side arc block (65) and a cover opening arc angle block (69) to form a hole of a cover opening ring, embedding a cover heat-insulating block (38) in a hoop (59) of the cover opening ring hole, and embedding the cover opening heat-insulating cover of the hoop (59) embedded with the cover heat-insulating block (38) in the hole of the cover opening ring; after the cover plate (1) is fastened with the bolts, pouring heat insulation block materials into the cavity inside the furnace door, and ending the manufacturing process of the zipper lining hot bottom furnace; after the manufacture, the furnace shell is nailed with a trademark nameplate (43) with teeth engaged with the indication ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2018101935090 | 2018-03-09 | ||
| CN2018203232288 | 2018-03-09 | ||
| CN201810193509 | 2018-03-09 | ||
| CN201820323228 | 2018-03-09 |
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| CN110132009B true CN110132009B (en) | 2023-12-29 |
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| CN2163997Y (en) * | 1993-07-09 | 1994-05-04 | 田卫东 | Nonferrous metal melting furnace |
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| CN201680719U (en) * | 2010-04-21 | 2010-12-22 | 山东滨州渤海活塞股份有限公司 | Thermal-type crucible bottom-free heating and heat-preservation electric furnace |
| CN105987596A (en) * | 2015-01-29 | 2016-10-05 | 边仁杰 | Bottom coil of heat-insulation furnace |
| CN105987600A (en) * | 2015-01-29 | 2016-10-05 | 边仁杰 | Bottom protrusion of heat-insulation furnace |
| CN105983683A (en) * | 2015-01-29 | 2016-10-05 | 边仁杰 | Regenerative furnace bottom pipe |
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2019
- 2019-03-06 CN CN201910166688.3A patent/CN110132009B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163997Y (en) * | 1993-07-09 | 1994-05-04 | 田卫东 | Nonferrous metal melting furnace |
| US5810907A (en) * | 1996-07-15 | 1998-09-22 | Nippon Crucible Co., Ltd. | Continuous melting apparatus for low-melting point metal, improved crucible for such apparatus, and melting method using such apparatus |
| CN201680719U (en) * | 2010-04-21 | 2010-12-22 | 山东滨州渤海活塞股份有限公司 | Thermal-type crucible bottom-free heating and heat-preservation electric furnace |
| CN105987596A (en) * | 2015-01-29 | 2016-10-05 | 边仁杰 | Bottom coil of heat-insulation furnace |
| CN105987600A (en) * | 2015-01-29 | 2016-10-05 | 边仁杰 | Bottom protrusion of heat-insulation furnace |
| CN105983683A (en) * | 2015-01-29 | 2016-10-05 | 边仁杰 | Regenerative furnace bottom pipe |
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