CN219735964U - High-efficiency low-energy-consumption upward furnace - Google Patents

Abstract

The utility model relates to a high-efficiency low-energy-consumption upward furnace, which relates to the technical field of copper rod production equipment and comprises a support frame, wherein a furnace body is fixedly arranged on the support frame, the furnace body comprises a melting area, a purifying area and a heat preservation area, a nanometer high-temperature heat insulation layer I is arranged on the inner wall of the furnace body, a chromium-containing fiber layer I is arranged on the inner side wall of the nanometer high-temperature heat insulation layer I, a chromium-containing fiber layer II is arranged on the inner bottom wall of the nanometer high-temperature heat insulation layer I, ceramic fiber layers are jointly arranged on the chromium-containing fiber layer I and the chromium-containing fiber layer II, a heat preservation layer is arranged on the inner side wall of the ceramic fiber layer, a quartz sand layer is jointly arranged on the heat preservation layer and the ceramic fiber layer, a plurality of forming bricks are arranged on the quartz sand layer, and adjacent forming bricks are mutually connected. The utility model has the effects of improving the heat preservation effect of the upward furnace and reducing the electric energy consumption of oxygen-free copper rod production.

Description

High-efficiency low-energy-consumption upward furnace

Technical Field

The utility model relates to the technical field of copper rod production equipment, in particular to an efficient low-energy-consumption upward furnace.

Background

The oxygen-free copper rod is a raw material for drawing small-specification copper wires such as small drawing and micro drawing, enamelled wires, copper bars and the like, and the upward copper rod smelting furnace is an important device for producing the oxygen-free copper rod and is generally formed by pouring asbestos plates, light heat-insulating bricks, forming bricks and quartz sand.

The Chinese patent with the authorized publication number of CN102305540B provides a copper melting upward-guiding furnace, which comprises a furnace frame, wherein a furnace body is arranged on the furnace frame, the furnace body comprises a melting zone, a heat-preserving zone and an upward-guiding zone which are sequentially arranged, a molten pool is arranged below the melting zone, a heat-preserving pool is arranged below the heat-preserving zone, a liquid storage heat-preserving pool is arranged below the upward-guiding zone, an electromagnetic heating mechanism is arranged in the furnace body, the electromagnetic heating mechanism comprises a first electromagnetic heating coil, a second electromagnetic heating coil and a third electromagnetic heating coil, the first electromagnetic heating coil is positioned in the molten pool, the first electromagnetic heating coil is used for melting copper in the molten pool, the second electromagnetic heating coil is positioned in the heat-preserving pool, the second electromagnetic heating coil is used for keeping molten liquid in the heat-preserving pool, the third electromagnetic heating coil is positioned in the liquid storage heat-preserving pool, and the molten liquid in the liquid storage heat-preserving pool is in a molten state. Electrolytic copper is put into a molten pool of the melting zone, copper is melted into copper molten liquid in the melting zone under the operation of the first electromagnetic heating coil, the melted copper molten liquid flows into the heat preservation zone, the copper molten liquid in the heat preservation pool is always kept in a liquid state under the operation of the second electromagnetic heating coil, the copper molten liquid in the heat preservation pool flows into the upper guiding zone, the copper molten liquid is kept in a molten state under the operation of the third electromagnetic heating coil, and the copper molten liquid in the upper guiding zone is made into an oxygen-free copper rod.

In carrying out the present utility model, the inventors have found that at least the following problems exist in this technology: in the copper material smelting process in the furnace body, a part of heat generated by the first electromagnetic heating coil, the second electromagnetic heating coil and the third electromagnetic heating coil heats the copper material in the furnace body, and the other part of heat is lost to the outside through the furnace body, and the heat generated by the first electromagnetic heating coil, the second electromagnetic heating coil and the third electromagnetic heating coil is converted from electric energy, so that an oxygen-free copper rod is caused along with the condition of electric energy waste in the production process, and the production electricity cost of the oxygen-free copper rod is higher.

Disclosure of Invention

In order to improve the heat preservation effect of the upward furnace and reduce the electric energy consumption of oxygen-free copper rod production, the utility model provides the high-efficiency low-energy-consumption upward furnace.

The utility model provides a high-efficiency low-energy-consumption upward furnace, which adopts the following technical scheme:

the utility model provides a high-efficient low energy consumption draws stove upward, includes the support frame, the fixed furnace body that sets up on the support frame, the furnace body includes melting district, purification district and heat preservation district, set up nanometer high temperature insulating layer one on the furnace body inner wall, set up chromium-containing fibrous layer one on the nanometer high temperature insulating layer one inside wall, set up chromium-containing fibrous layer two on the nanometer high temperature insulating layer one inner bottom wall, chromium-containing fibrous layer one and chromium-containing fibrous layer two are gone up and set up ceramic fiber layer jointly, set up the heat preservation on the ceramic fiber layer inner wall, set up quartzy sand layer jointly on heat preservation and the ceramic fiber layer, set up a plurality of shaping bricks on the quartzy sand layer, adjacent shaping brick interconnect.

Through adopting above-mentioned technical scheme, the heat that the furnace body outwards looses needs to pass ceramic fiber layer, chromium-containing fiber layer one, chromium-containing fiber layer two and nanometer high temperature insulating layer one in proper order, because ceramic fiber, chromium-containing fiber layer and nanometer high temperature insulating layer one soaking conductivity is low, and then the heat is difficult for outwards losing to the furnace body through ceramic fiber layer, chromium-containing fiber layer one, chromium-containing fiber layer two and nanometer high temperature insulating layer, reaches the purpose that improves the heat preservation effect of introducing the stove, improves the electric energy utilization rate that the copper material smelted, reduces oxygen-free copper pole production electric energy consumption.

Preferably, the outer wall of the furnace body is provided with a second nano high-temperature heat insulation layer, the second nano high-temperature heat insulation layer comprises a second nano high-temperature heat insulation plate and a second nano high-temperature heat insulation plate, the second nano high-temperature heat insulation plate comprises a second inner core and a second aluminum foil layer, the second inner core is made of nano porous silica micropowder, the thickness of the second inner core is 20mm, the second aluminum foil layer is wrapped on the outer wall of the second inner core, the side wall of one side of the second aluminum foil layer is connected with the outer wall of the furnace body, and the adjacent second aluminum foil layers are connected with each other.

Through adopting above-mentioned technical scheme, the inner core II that thickness is 20mm is made to nano-porous silica micro powder, inner core II outer wall parcel is by aluminium foil layer II that aluminium foil was made, and then form nano high temperature heat insulating board II, nano high temperature heat insulating board II covers on the furnace body outer wall, because nano-porous silica micro powder main raw materials is nano-scale silica, so nano-porous silica micro powder thermal conductivity is 0.27W/cm·K, and then nano high temperature heat insulating board II is difficult for conduction heat, reduce the heat that the furnace body passes through nano high temperature heat insulating board and loses to the external world, and then improve the heat preservation effect of leading up the stove, reduce the oxygen-free copper pole and produce the electric energy consumption.

Preferably, adhesion layers are arranged between the furnace body and the first nano high-temperature heat-insulating layer, between the first nano high-temperature heat-insulating layer and the first chromium-containing fiber layer, between the first nano high-temperature heat-insulating layer and the second chromium-containing fiber layer, between the first chromium-containing fiber layer and the ceramic fiber layer and between the second chromium-containing fiber layer and the ceramic fiber layer, and the adhesion layers are made of glass water and high-strength refractory clay.

By adopting the technical scheme, glass water and high-strength refractory clay are mixed to prepare the adhesive layer with viscosity, the first nano high-temperature heat-insulating layer is adhered and covered on the inner wall of the furnace body through the adhesive layer, the first chromium-containing fiber layer and the second chromium-containing fiber layer are adhered and covered on the first nano high-temperature heat-insulating layer through the adhesive layer, and finally the ceramic fiber layer is adhered and covered on the chromium-containing fiber layer.

Preferably, the first high-temperature heat insulating layer comprises a plurality of first high-temperature heat insulating nano-plates, the first high-temperature heat insulating nano-plates comprise a first inner core and a first aluminum foil layer, the first inner core is made of nano-porous silica micropowder, the thickness of the first inner core is 10mm, the first aluminum foil layer is wrapped on the outer wall of the first inner core, one side wall of the aluminum foil layer is connected with the adhesion layer, and the adjacent first aluminum foil layers are connected with each other.

Through adopting above-mentioned technical scheme, the inner core first that thickness is 10mm is made to nano-porous silica micro powder, inner core first outer wall parcel is by aluminium foil layer first that aluminium foil was made, and then form nano high temperature heat insulating board first, nano high temperature heat insulating board first covers on the furnace body inner wall, because nano-porous silica micro powder main raw materials is nano-scale silica, so nano-porous silica micro powder thermal conductivity is 0.27W/cm·K, and then nano high temperature heat insulating board first be difficult for conduction heat, reduce the heat that is passed through nano high temperature heat insulating board to the furnace body conduction, and then improve the heat preservation effect of leading the stove upward, reduce oxygen-free copper pole production electric energy consumption.

Preferably, the first chromium-containing fiber layer comprises a plurality of first chromium-containing fiber blankets, the first chromium-containing fiber blankets have a thickness of 20mm, the first side walls of the first chromium-containing fiber blankets are connected with the adhesive layer, and the first adjacent chromium-containing fiber blankets are connected with each other.

By adopting the technical scheme, as the chromium-containing fiber blanket I with the thickness of 20mm is used on the side wall of the furnace body, the chromium-containing fiber blanket I is made of aluminum oxide, chromium oxide and silicon dioxide, and then the chromium-containing fiber blanket I has the characteristics of low heat capacity, low heat conductivity, excellent elasticity, excellent heat stability and good thermal shock resistance, and then heat in the furnace body is not easy to be dissipated to the nanometer high-temperature heat insulation layer I through the chromium-containing fiber blanket, so that the heat dissipation condition from the heat in the furnace body to the outside of the furnace body is reduced, the heat preservation effect of the upward-guiding furnace is improved, and the production electric energy consumption of the oxygen-free copper rod is reduced.

Preferably, the second chromium-containing fiber layer comprises a second chromium-containing fiber blanket, the thickness of the second chromium-containing fiber blanket is 10mm, the two side walls of the second chromium-containing fiber blanket are connected with the adhesion layer, and the adjacent second chromium-containing fiber blankets are connected with each other.

Through adopting above-mentioned technical scheme, the furnace body diapire uses chromium-containing fiber blanket two of thickness for 10mm, chromium-containing fiber blanket two is by aluminium oxide, chromium oxide and silicon dioxide preparation, and then chromium-containing fiber blanket two has low heat capacity, low thermal conductivity, good elasticity, good thermal stability and thermal shock resistance good characteristics, and then the heat is difficult for through the two nanometer high temperature insulating layer one of chromium-containing fiber blanket to lose, and then the circumstances that reduces the heat in the furnace body and lose to the outside heat of furnace body improves the heat preservation effect of leading up the stove, reduce oxygen-free copper pole production electric energy consumption.

Preferably, the ceramic fiber layer comprises a plurality of ceramic fiber plates, the thickness of each ceramic fiber plate is 10mm, one side of each ceramic fiber plate is connected with the adhesion layer, the other side of each ceramic fiber plate is connected with the heat preservation layer, and the adjacent ceramic fiber plates are connected with each other.

By adopting the technical scheme, the flint clay and the alumina powder are made into ceramic fiber cotton, the ceramic fiber cotton is made into ceramic fiber board, and then the ceramic fiber board has higher supporting strength and heat preservation performance under high-temperature environment, and then the heat in the furnace body is not easy to be dissipated to the chromium-containing fiber blanket I and the chromium-containing fiber blanket II through the ceramic fiber board, so that the heat in the furnace body is not easy to be dissipated, the heat preservation effect of the upper guiding furnace is improved, and the production electric energy consumption of the oxygen-free copper rod is reduced.

Preferably, the heat-insulating layer comprises a plurality of light heat-insulating bricks, one side of each light heat-insulating brick is connected with the ceramic fiber board, the other side of each light heat-insulating brick is connected with the quartz sand layer, and the adjacent light heat-insulating bricks are connected with each other.

By adopting the technical scheme, the light insulating brick has the characteristics of high porosity, low volume density and low heat conductivity, so that the heat in the furnace body is not easy to dissipate, the heat insulating effect of the upward furnace is improved, and the electric energy consumption for producing the oxygen-free copper rod is reduced.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the aim of improving the heat preservation effect of the upper furnace is achieved by arranging the support frame, the furnace body, the melting zone, the purifying zone, the heat preservation zone, the nano high-temperature heat insulation layer I, the chromium-containing fiber layer II, the ceramic fiber layer, the heat preservation layer, the quartz sand layer and the forming bricks, the electric energy utilization rate of copper smelting is improved, and the electric energy consumption of oxygen-free copper rod production is reduced;

2. by arranging the nano high-temperature heat insulation layer II, the heat preservation effect of the upward furnace is improved, and the electric energy consumption for producing the oxygen-free copper rod is reduced;

3. by arranging the adhesion layer, the effect of connecting the nano high-temperature heat insulation layer I, the chromium-containing fiber layer II, the ceramic fiber layer and the heat insulation layer is achieved.

Drawings

FIG. 1 is a cross-sectional view of an efficient low energy-consuming up-draft furnace in an embodiment of the present utility model.

Fig. 2 is an enlarged view of a portion a in fig. 1.

FIG. 3 is a cross-sectional view of a structure embodying a nano-high temperature insulating panel in an embodiment of the present utility model.

FIG. 4 is a cross-sectional view of a second structure embodying a nano high temperature insulating panel in an embodiment of the present utility model.

FIG. 5 is a cross-sectional view of a structure embodying a chromium-containing fiber layer in an embodiment of the present utility model.

FIG. 6 is a cross-sectional view of a second structure embodying a chromium-containing fiber layer in an embodiment of the present utility model.

Fig. 7 is a cross-sectional view of a ceramic fiber blanket structure embodying an embodiment of the present utility model.

Reference numerals illustrate: 1. a support frame; 11. a furnace body; 111. a melting zone; 112. a purification zone; 113. a heat preservation area; 2. a nano high-temperature heat insulation layer I; 21. a nano high-temperature heat insulation plate I; 211. an inner core I; 212. an aluminum foil layer I; 3. a first chromium-containing fiber layer; 31. a first chromium-containing fiber blanket; 4. a second chromium-containing fiber layer; 41. a second chromium-containing fiber blanket; 5. a ceramic fiber layer; 51. ceramic fiber board; 6. a heat preservation layer; 61. light insulating bricks; 7. a quartz sand layer; 71. forming bricks; 8. a nano high-temperature heat insulation layer II; 81. a second nano high-temperature heat insulation plate; 811. an inner core II; 812. an aluminum foil layer II; 9. and an adhesion layer.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-7.

The embodiment of the utility model discloses an efficient low-energy-consumption upward furnace. Referring to fig. 1 and 2, the furnace comprises a support frame 1, a furnace body 11 is installed on the support frame 1, the furnace body 11 comprises a melting zone 111, a purifying zone 112 and a heat preservation zone 113, the melting zone 111 and the purifying zone 112 are communicated with each other, and the purifying zone 112 and the heat preservation zone 113 are communicated with each other. The outer wall of the furnace body 11 is covered with a second nano high-temperature heat-insulating layer 8, and the inner wall of the furnace body 11 is covered with a first nano high-temperature heat-insulating layer 2. The inner side wall of the nanometer high-temperature heat insulation layer I2 is covered with the chromium-containing fiber layer I3, and the inner bottom wall of the nanometer high-temperature heat insulation layer I2 is covered with the chromium-containing fiber layer II 4. The first chromium-containing fiber layer 3 and the second chromium-containing fiber layer 4 are covered with the ceramic fiber layer 5 together, the inner side wall of the ceramic fiber layer 5 is provided with the heat preservation layer 6, and the heat preservation layer 6 and the ceramic fiber layer 5 are covered with the quartz sand layer 7 together. The quartz sand layer 7 is filled by quartz sand, and in the process of filling the quartz sand, steel drills repeatedly hammer the quartz sand, so that the compactness of the quartz sand is improved. The quartz sand layer 7 is provided with a plurality of forming bricks 71, the adjacent forming bricks 71 are connected with each other, and the forming bricks 71 distinguish the melting zone 111, the purifying zone 112 and the heat preservation zone 113. A group of first melting grooves are formed in the bottom wall of the quartz sand layer 7, adjacent first melting grooves are communicated with each other, the first melting grooves are located in the melting zone 111, a first cooling water jacket is arranged in the first melting grooves, a first coil is arranged in the first cooling water jacket, and a first iron core is arranged in the first coil. The quartz sand layer 7 is provided with a second melting ditch on the bottom wall, the second melting ditch is positioned in the purifying area 112 and the heat preservation area 113, a second cooling water jacket is arranged in the second melting ditch, a second coil is arranged in the second cooling water jacket, and a second iron core is arranged in the second coil. A third melting channel is arranged on the bottom wall of the quartz sand layer 7 and is positioned in the heat preservation area 113, a third cooling water jacket is arranged in the third melting channel, a third coil is arranged in the third cooling water jacket, and a third iron core is arranged in the third coil. Electrolytic copper is charged into the melting zone 111 of the furnace body 11, and the copper material is melted into a copper material melt by the operation of the first coil. The molten copper material flows into the purifying area 112, and the copper material in the purifying tank is always kept in a liquid state under the operation of the second coil. The copper melt in the purifying tank stably flows into the upward guiding area, and the copper melt is maintained in a molten state and is upward guided into an oxygen-free copper rod under the operation of the third coil. In the process, cooling water is introduced into the first cooling water jacket, so that the temperature of the first coil and the first iron core is reduced, and the condition of overheat damage of the first coil and the first iron core is reduced; cooling water is introduced into the second cooling water jacket, so that the temperature of the second coil and the second iron core is reduced, and the overheat damage condition of the second coil and the second iron core is reduced; cooling water is introduced into the third cooling water jacket, so that the temperature of the third coil and the temperature of the third iron core are reduced, and the overheat damage condition of the third coil and the third iron core is reduced. The heat generated by the first melting channel, the second melting channel and the third melting channel needs to sequentially pass through the ceramic fiber layer 5, the first chromium-containing fiber layer 3, the second chromium-containing fiber layer 4, the first nano high-temperature heat-insulating layer 2, the furnace body 11 and the second nano high-temperature heat-insulating layer 8 to be transmitted to the outside of the furnace body 11, and as the soaking conductivity of the ceramic fiber layer 5, the first chromium-containing fiber layer 3, the second chromium-containing fiber layer 4, the first nano high-temperature heat-insulating layer 2 and the first nano high-temperature heat-insulating layer 2 is low, the heat transmitted to the outer wall of the furnace body 11 is less, so that the heat generated by the first melting channel, the second melting channel and the third melting channel is mostly transmitted to copper liquid in the furnace body 11. The purpose of improving the heat preservation effect of the upward furnace is achieved, the electric energy utilization rate of copper smelting is improved, and the electric energy consumption of oxygen-free copper rod production is reduced.

Referring to fig. 1 and 2, an adhesion layer 9 is coated between the furnace body 11 and the nano high-temperature heat-insulating layer 12, between the nano high-temperature heat-insulating layer 2 and the chromium-containing fiber layer 3, between the nano high-temperature heat-insulating layer 2 and the chromium-containing fiber layer 4, between the chromium-containing fiber layer 3 and the ceramic fiber layer 5, and between the chromium-containing fiber layer 4 and the ceramic fiber layer 5. The adhesion layer 9 is made of glass water and high-strength refractory mortar, and the adhesion layer 9 made of glass water and high-strength refractory mortar mixed has tackiness. The inner wall of the furnace body 11 is coated with an adhesion layer 9, and then the nano high-temperature heat-insulating layer I2 is adhered to the adhesion layer 9 on the inner wall of the furnace body 11, so that the nano high-temperature heat-insulating layer I2 is adhered and covered on the inner wall of the furnace body 11. Coating an adhesion layer 9 on the first nano high-temperature heat-insulating layer 2, and then adhering the first chromium-containing fiber layer 3 and the second chromium-containing fiber layer 4 on the adhesion layer 9 on the first nano high-temperature heat-insulating layer 2, so that the first chromium-containing fiber layer 3 and the second chromium-containing fiber layer 4 are adhered and covered on the first nano high-temperature heat-insulating layer 2. Coating an adhesion layer 9 on the first chromium-containing fiber layer 3 and the second chromium-containing fiber layer 4, and then adhering the ceramic fiber layer 5 on the adhesion layer 9 on the first chromium-containing fiber layer 3 and the second chromium-containing fiber layer 4, so that the ceramic fiber layer 5 is adhered and covered on the first chromium-containing fiber layer 3 and the second chromium-containing fiber layer 4.

In order to improve the heat preservation effect of the upward furnace, referring to fig. 2 to 4, the inner wall of the furnace body 11 is covered with a nano high-temperature heat-insulating layer 1, and the nano high-temperature heat-insulating layer 2 comprises a plurality of nano high-temperature heat-insulating plates 21. The nanometer high-temperature heat insulation plate I21 comprises an inner core I211 and an aluminum foil layer I212, wherein the inner core I211 is made of nanometer porous silicon micro powder, and the aluminum foil layer I212 is made of aluminum foil materials. The thickness of the first inner core 211 is 10mm, the first aluminum foil layer 212 is wrapped on the outer wall of the first inner core 211, the adjacent first aluminum foil layers 212 are adhered, and the side wall of the first aluminum foil layer 212 is connected with the adhesion layer 9. The second nanometer high-temperature heat insulation layer 8 comprises a second plurality of nanometer high-temperature heat insulation plates 81. The second high-temperature nano heat insulation plate 81 comprises a second inner core 811 and a second aluminum foil layer 812, wherein the second inner core 811 is made of nano porous silicon micro powder, and the second aluminum foil layer 812 is made of aluminum foil. The thickness of the first inner core 211 is 20mm, the second aluminum foil layer 812 is wrapped on the outer wall of the second inner core 811, and the adjacent second aluminum foil layers 812 are adhered. Because the main raw material of the nano porous silicon micro powder is nano-scale silicon dioxide, the thermal conductivity of the nano porous silicon micro powder is 0.27W/cm.K, and the second nano high-temperature heat insulation board 81 is not easy to conduct heat, so that the heat insulation effect of the upward furnace is improved, and the electric energy consumption of oxygen-free copper rod production is reduced.

In order to improve the heat-insulating effect of the up-draw furnace, referring to fig. 2 to 6, the first chromium-containing fiber layer 3 includes a plurality of first chromium-containing fiber blankets 31, the first chromium-containing fiber blankets 31 having a thickness of 20mm, and the adjacent first chromium-containing fiber blankets 31 are connected to each other. The second chromium-containing fiber layer 4 comprises a plurality of second chromium-containing fiber blankets 41, the thickness of the second chromium-containing fiber blanket 41 is 10mm, and the adjacent second chromium-containing fiber blankets 41 are connected with each other. The side wall of the first chromium-containing fiber blanket 31 and the side wall of the second chromium-containing fiber blanket 41 are connected with the adhesive layer 9, and the first chromium-containing fiber blanket 31 and the second chromium-containing fiber blanket 41 are made of aluminum oxide, chromium oxide and silicon dioxide. The side wall of the furnace body 11 uses a first chromium-containing fiber blanket 31 with the thickness of 20mm, and the bottom wall of the furnace body 11 uses a second chromium-containing fiber blanket 41 with the thickness of 10mm. Since the first and second chrome-containing fiber blankets 31 and 41 are made of alumina, chromia, and silica, the first and second chrome-containing fiber blankets 31 and 41 have characteristics of low heat capacity, low thermal conductivity, excellent elasticity, excellent thermal stability, and good thermal shock resistance. And the heat in the furnace body 11 is not easy to dissipate to the nanometer high-temperature heat insulation layer I2 through the chromium-containing fiber blanket I31 and the chromium-containing fiber blanket II 41, so that the heat dissipation of the heat in the furnace body 11 to the outside of the furnace body 11 is reduced, the heat preservation effect of the upper-guiding furnace is improved, and the electric energy consumption of oxygen-free copper rod production is reduced.

In order to improve the heat-insulating effect of the up-draw furnace, referring to fig. 2 and 7, the ceramic fiber layer 5 includes a plurality of ceramic fiber plates 51, the ceramic fiber plates 51 are made of flint clay and alumina powder, and the ceramic fiber plates 51 have a thickness of 10mm. One side of the ceramic fiber plate 51 is connected with the adhesion layer 9, the other side of the ceramic fiber plate 51 is connected with the heat preservation layer 6, and the adjacent ceramic fiber plates 51 are connected with each other. The flint clay and the alumina powder are made into ceramic fiber cotton, and the ceramic fiber cotton is made into the ceramic fiber board 51, so that the ceramic fiber board 51 has higher supporting strength and heat preservation performance in a high-temperature environment. The heat in the furnace body 11 is not easy to dissipate to the first chromium-containing fiber blanket 31 and the second chromium-containing fiber blanket 41 through the ceramic fiber board 51, so that the heat in the furnace body 11 is not easy to dissipate, the heat preservation effect of the upper furnace is improved, and the electric energy consumption for producing the oxygen-free copper rod is reduced.

In order to improve the heat preservation effect of the up-draw furnace, referring to fig. 1 and 2, the heat preservation layer 6 comprises a plurality of light heat preservation bricks 61, one side of the light heat preservation bricks 61 is connected with the ceramic fiber board 51, the other side of the light heat preservation bricks 61 is connected with the quartz sand layer 7, and the adjacent light heat preservation bricks 61 are connected with each other. The lightweight insulating brick 61 has the characteristics of high porosity, low volume density and low thermal conductivity, so that heat in the furnace body 11 is not easily dissipated.

The implementation principle of the high-efficiency low-energy-consumption upward furnace is as follows: the heat generated by the first melting channel, the second melting channel and the third melting channel needs to pass through the ceramic fiber layer 5, the first chromium-containing fiber layer 3, the second chromium-containing fiber layer 4, the first nanometer high-temperature heat-insulating layer 2, the furnace body 11 and the second nanometer high-temperature heat-insulating layer 8 in sequence to be transmitted to the outside of the furnace body 11. Because the ceramic fiber layer 5, the first chromium-containing fiber layer 3, the second chromium-containing fiber layer 4, the first nano high-temperature heat insulation layer 2 and the first nano high-temperature heat insulation layer 2 have low soaking conductivity, less heat is transferred to the outer wall of the furnace body 11, and most of heat generated by the first melting channel, the second melting channel and the third melting channel is transferred to copper liquid in the furnace body 11. The purpose of improving the heat preservation effect of the upward furnace is achieved, the electric energy utilization rate of copper smelting is improved, and the electric energy consumption of oxygen-free copper rod production is reduced.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a high-efficient low energy consumption draws stove upward, includes support frame (1), fixed setting furnace body (11) on support frame (1), furnace body (11) are including melting district (111), purification zone (112) and heat preservation district (113), its characterized in that: the high-temperature heat-insulating furnace is characterized in that a first nano high-temperature heat-insulating layer (2) is arranged on the inner wall of the furnace body (11), a first chromium-containing fiber layer (3) is arranged on the inner side wall of the first nano high-temperature heat-insulating layer (2), a second chromium-containing fiber layer (4) is arranged on the inner bottom wall of the first nano high-temperature heat-insulating layer (2), ceramic fiber layers (5) are jointly arranged on the first chromium-containing fiber layer (3) and the second chromium-containing fiber layer (4), an insulating layer (6) is arranged on the inner side wall of the ceramic fiber layer (5), a quartz sand layer (7) is jointly arranged on the insulating layer (6) and a plurality of forming bricks (71) are arranged on the quartz sand layer (7) and are mutually connected.

2. The efficient low-energy-consumption upward furnace according to claim 1, wherein: the furnace body (11) outer wall sets up nanometer high temperature insulating layer two (8), nanometer high temperature insulating layer two (8) include a plurality of nanometer high temperature heat insulating board two (81), nanometer high temperature insulating board two (81) include inner core two (811) and aluminium foil layer two (812), inner core two (811) are made by the porous silica powder of nanometer, inner core two (811) thickness is 20mm, aluminium foil layer two (812) parcel is at inner core two (811) outer wall, aluminium foil layer two (812) one side lateral wall and furnace body (11) outer wall connection, adjacent aluminium foil layer two (812) interconnect.

3. The efficient low-energy-consumption upward furnace according to claim 1, wherein: the furnace body (11) and the first high-temperature nano heat-insulating layer (2), the first high-temperature nano heat-insulating layer (2) and the first chromium-containing fiber layer (3), the first high-temperature nano heat-insulating layer (2) and the second chromium-containing fiber layer (4), the first chromium-containing fiber layer (3) and the ceramic fiber layer (5) and the second chromium-containing fiber layer (4) and the ceramic fiber layer (5) are provided with adhesion layers (9), and the adhesion layers (9) are made of glass water and high-strength refractory clay.

4. A high efficiency low energy consumption uptake furnace as defined in claim 3 wherein: the first (2) of nanometer high temperature insulating layer includes a plurality of nanometer high temperature insulating board, first (21) of nanometer high temperature insulating board include first (211) of inner core and aluminium foil layer (212), first (211) of inner core are made by the porous silica powder of nanometer, first (211) thickness of inner core is 10mm, aluminium foil layer (212) parcel is in first (211) outer wall of inner core, aluminium foil layer (212) lateral wall is connected with adhesion layer (9), adjacent aluminium foil layer (212) interconnect.

5. A high efficiency low energy consumption uptake furnace as defined in claim 3 wherein: the first chromium-containing fiber layer (3) comprises a plurality of first chromium-containing fiber blankets (31), the thickness of each first chromium-containing fiber blanket (31) is 20mm, the side walls of each first chromium-containing fiber blanket (31) are connected with the adhesive layer (9), and the adjacent first chromium-containing fiber blankets (31) are connected with each other.

6. A high efficiency low energy consumption uptake furnace as defined in claim 3 wherein: the chromium-containing fiber layer II (4) comprises a plurality of chromium-containing fiber carpets II (41), the thickness of each chromium-containing fiber carpet II (41) is 10mm, the side walls of each chromium-containing fiber carpet II (41) are connected with the adhesion layer (9), and the adjacent chromium-containing fiber carpets II (41) are connected with each other.

7. A high efficiency low energy consumption uptake furnace as defined in claim 3 wherein: the ceramic fiber layer (5) comprises a plurality of ceramic fiber plates (51), the thickness of each ceramic fiber plate (51) is 10mm, one side of each ceramic fiber plate (51) is connected with the adhesive layer (9), the other side of each ceramic fiber plate (51) is connected with the heat preservation layer (6), and the adjacent ceramic fiber plates (51) are connected with each other.

8. The efficient low-energy-consumption upward furnace according to claim 7, wherein: the heat preservation (6) comprises a plurality of light heat preservation bricks (61), one side of each light heat preservation brick (61) is connected with the ceramic fiber board (51), the other side of each light heat preservation brick (61) is connected with the quartz sand layer (7), and the adjacent light heat preservation bricks (61) are connected with each other.