CN202747793U - Energy-saving and environment-friendly kiln body and vanadium-nitrogen alloy high-temperature sintering kiln applying the energy-saving and environment-friendly kiln body - Google Patents
Energy-saving and environment-friendly kiln body and vanadium-nitrogen alloy high-temperature sintering kiln applying the energy-saving and environment-friendly kiln body Download PDFInfo
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- CN202747793U CN202747793U CN 201220434950 CN201220434950U CN202747793U CN 202747793 U CN202747793 U CN 202747793U CN 201220434950 CN201220434950 CN 201220434950 CN 201220434950 U CN201220434950 U CN 201220434950U CN 202747793 U CN202747793 U CN 202747793U
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Abstract
An energy-saving and environment-friendly kiln body comprises a thermal insulation fire-resistant layer, a calcining compartment, a graphite crucible, horizontal heating chambers and a seal box, wherein the graphite crucible and the thermal insulation fire-resistant layer are arranged inside and outside the calcining compartment respectively, the upper and lower horizontal heating chambers are respectively arranged above and below the graphite crucible, corresponding upper and lower horizontal heating bodies are arranged horizontally in the upper and lower horizontal heating chambers, one end of each horizontal heating body is positioned in the heating chamber, and the other end of each horizontal heating body passes through a side wall, the thermal insulation fire-resistant layer and a furnace casing sequentially and then extends into the seal box, high-temperature fibers are filled in gaps between the heating bodies and filling bricks, and the seal box is provided with an air inlet interface and a copper electrode. In the vanadium-nitrogen alloy high-temperature sintering kiln adopting the energy-saving and environment-friendly kiln body, a low temperature segment, a transition segment and a high temperature segment adopt different manufacturing materials and heating bodies so as to be adaptive to the calcining process. According to the design, the unit consumption of energy is lower and the operation conditions are better, and in addition, the process atmosphere in the kiln is guaranteed, the calcining effect is better, and the service life is longer.
Description
Technical field
The utility model relates to a kind of kiln body for high temperature sintering, and the VN alloy high temperature sintering furnace that relates in particular to a kind of energy saving and environment friendly kiln body and be applied to specifically is applicable to reduce specific energy consumption, and improves operating condition.
Background technology
VN alloy is as a kind of Novel steel iron additive, and alternative vanadium iron is used for the production of micro alloyed steel.It makes an addition to the comprehensive mechanical performances such as intensity, toughness, ductility and thermal fatigue resistance that can improve steel in the steel, and makes steel have good solderability.Reaching under the same intensity, the interpolation VN alloy adds vanadium and can save vanadium 30% – 40%, has reduced cost.VN alloy is generally used by domestic and international steel mill, and its production technology and production equipment have obtained fast development.
It is a kind of at the industrial chamber structure of producing continuously the calciner pushed bat kiln of VN alloy that the Chinese patent patent No. is that the patent of invention of ZL200410083901.8 discloses, this pushed bat kiln vertically is disposed with low-temperature zone, changeover portion, high temperature section and cooling section, and its chamber structure comprises kiln chamber, cover plate, side wall and track; Wherein, low-temperature zone has i.e. 1 –, 5 warm areas of 5 warm areas, and inner chamber side wall, cover plate and track are graphite material; Changeover portion has i.e. 6 –, 9 warm areas of 4 warm areas, and wherein 6 –, 8 warm area inner chamber side walls and track adopt high-puritied magnesia brick, cover plate to adopt graphite material, and 9 warm area inner chamber side walls, cover plate and track are graphite material; High temperature section is established i.e. 10 –, 16 warm areas of 7 warm areas, and cooling section is divided into the nature cooling zone and forces the cooling zone, and inner chamber side wall, cover plate and the track of high temperature section and natural cooling zone are graphite material; There is the heating element heater jack side wall brick relevant position at 1 –, 5 warm areas and 9 –, 16 warm areas, makes the isolation of heating element heater and kiln chamber; Insert two-layer graphite cake between the every side wall brick of 6 –, 8 warm areas, make heating element heater and the isolation of kiln chamber with plate; The body of heater inner chamber is divided into 3 autonomous channels, and center-aisle is that the furnace charge main channel is the kiln chamber, and both sides are heating element heater separate cavities passage, and heating element heater and oven cavity atmosphere are isolated fully.Although this invention is by in the different inner-cavity structure of different warm areas design, service life of selecting the mode of suitable anti-corrosion resisting liner material to improve pushed bat kiln and heating element heater, it still has following defective:
Heating element heater in this invention is arranged vertically in the burner hearth both sides, being arranged vertically of heating element heater can be in the slit of burner hearth formation vertical direction, simultaneously, heated gas has the rule that moves upward, thereby, High Temperature Gas cognition in the kiln is passed through heating element heater, vertical clearance gap between the plug brick, be dispersed in a large number kiln body top, cause the top surface temperature up to 200 ℃, not only wasted a large amount of heat energy, increased energy consumption and (produced the VN16 product by GB/T20567 – 2006 for standard, take vanadic anhydride as raw material, the product power consumption is 9000 kilowatt hour/tons), and improved environment temperature, worsened operating condition.
Summary of the invention
The purpose of this utility model is to overcome defective and the problem that the specific energy consumption that exists in the prior art is higher, operating condition is relatively poor, provides that a kind of specific energy consumption is lower, operating condition preferably energy saving and environment friendly kiln body and the VN alloy high temperature sintering furnace that is applied to thereof.
For realizing above purpose, technical solution of the present utility model is: a kind of energy saving and environment friendly kiln body, comprise thermal insulation fire-resistant layer, calcining compartment and graphite crucible, be wrapped with furnace shell around the described thermal insulation fire-resistant layer, the inside of thermal insulation fire-resistant layer is provided with calcining compartment, the inside of calcining compartment is provided with the kiln chamber, and the inside in kiln chamber is provided with graphite crucible; Described calcining compartment comprises top board, base plate and side wall, the two ends of described top board bottom are connected by the two ends of side wall with the base plate top, the bottom of described graphite crucible is connected with the top of guide rail through push pedal, the top of graphite crucible is provided with the arch brick boss, the two ends of arch brick boss are connected with the inboard of kiln wall, the outside of kiln wall is connected with the inboard of side wall, and is formed with the kiln chamber between arch brick boss, Yao Qiang, guide rail, push pedal;
Be provided with horizontal heating clamber between described top board, the arch brick boss, be provided with horizontal calandria on this in the horizontal heating clamber; Be provided with lower horizontal heating clamber between described guide rail, the base plate, be provided with lower horizontal calandria in the horizontal heating clamber of this time, and upward horizontal calandria, lower horizontal calandria all are horizontally disposed with.
Described horizontal heating clamber comprises level arch dome brick, vertical key brick, upper insulating pad and upper load bearing board; The two ends of described level arch dome brick are connected with the inboard of side wall, and the top of level arch dome brick is connected with the bottom of top board, and the top of described vertical key brick is connected with the bottom of top board, and vertically the bottom of key brick is connected with the arch brick boss; Be provided with horizontal calandria in the cavity that described level arch dome brick, side wall, arch brick boss, vertical key brick surround, upward the bottom of an end of horizontal calandria is connected with the top of arch brick boss by upper insulating pad, upper load bearing board successively, and the other end of upper horizontal calandria extends in the upper seal box behind side wall, thermal insulation fire-resistant layer, furnace shell successively;
Described lower horizontal heating clamber comprises end brick and lower insulating pad; The top of brick of the described end is connected with the bottom of guide rail, the bottom of end brick is connected with the top of base plate, be provided with lower horizontal calandria in the cavity of brick inside, the end, the bottom of one end of the horizontal calandria of this time is connected with the top of base plate by lower insulating pad, and the other end of lower horizontal calandria extends in the lower seal box behind side wall, thermal insulation fire-resistant layer, furnace shell successively.
The position that is positioned at the thermal insulation fire-resistant layer on described horizontal calandria, the lower horizontal calandria all is connected with bridge plate by the plug brick; The two ends of described plug brick are connected with furnace shell, side wall respectively, and the bottom is connected with upper horizontal calandria or lower horizontal calandria, and the top is connected with bridge plate, and an end of bridge plate is connected with furnace shell, and the other end extends to the inside of side wall.
All be filled with high temperature fiber in the slit between described horizontal calandria, lower horizontal calandria and the plug brick.
The structure of described upper seal box, lower seal box is consistent, includes shrouding, box body and copper electrode; The inside of described box body is provided with the other end of horizontal calandria or lower horizontal calandria, one end of box body is connected with furnace shell, the other end of box body is connected with shrouding, be provided with fluorine bipeltate and bolt in this shrouding, the top of box body is provided with intake interface, and the bottom of box body is provided with copper electrode, and an end of this copper electrode is positioned at the inside of box body, the other end is positioned at the outside of box body, and is wrapped with the polytetrafluoroethylene electrode cover at copper electrode.
The top of brick of the described end is provided with two groups of bridge piers that are parallel to each other, the top of these two groups of bridge piers is embedded with the same guide rail perpendicular with it, the top of guide rail is provided with push pedal, the sidepiece of guide rail is connected with a side of limit guide rail, the opposite side of limit guide rail is connected with the inboard of side wall, and the top of limit guide rail is connected with the bottom of kiln wall.
A kind of VN alloy high temperature sintering furnace that adopts above-mentioned energy saving and environment friendly kiln body, described VN alloy high temperature sintering furnace comprises low-temperature zone, changeover portion, high temperature section and cooling section, described low-temperature zone communicates with cooling section after changeover portion, high temperature section successively;
Described low-temperature zone, changeover portion, high temperature section all adopt the kiln structure of described energy saving and environment friendly kiln body;
In the described low-temperature zone: the manufactured materials of described top board, level arch dome brick, vertical key brick, arch brick boss, Yao Qiang, upper insulating pad, lower insulating pad, upper load bearing board, guide rail, limit guide rail all is corundum, and described horizontal calandria, lower horizontal calandria are U-shaped Elema;
In the described changeover portion: the manufactured materials of described top board, level arch dome brick, vertical key brick, arch brick boss, Yao Qiang, upper load bearing board, guide rail, limit guide rail all is the magnesium zirconium, the manufactured materials of described upper insulating pad, lower insulating pad is corundum, and described horizontal calandria, lower horizontal calandria are W type Si-Mo rod;
In the described high temperature section: the manufactured materials of described top board, level arch dome brick, vertical key brick, arch brick boss, Yao Qiang, upper load bearing board, guide rail, limit guide rail all is graphite, the manufactured materials of described upper insulating pad, lower insulating pad is corundum, and described horizontal calandria, lower horizontal calandria are W type Si-Mo rod.
In described low-temperature zone, changeover portion, the high temperature section: the manufactured materials of described base plate, side wall all is hollow ball, and the manufactured materials of described push pedal is graphite.
Compared with prior art, the beneficial effects of the utility model are:
1, comprises horizontal heating clamber and lower horizontal heating clamber in a kind of energy saving and environment friendly kiln body of the utility model and the VN alloy high temperature sintering furnace that is applied to thereof, and in horizontal heating clamber, lower horizontal heating clamber, be horizontally disposed with corresponding upper horizontal calandria, lower horizontal calandria.Because upper and lower horizontal calandria is all horizontally disposed, and the power that heated gas flows in the horizontal direction is less, thereby the heated gas in the kiln is difficult for being dispersed into kiln body top by slit between heating element heater, the plug brick, not only heat-energy losses is less, and the temperature of lifting peripheral operation environment that can be not too much, improved the peripheral operation condition.Therefore not only specific energy consumption is lower for the utility model, and operating condition is better.
2, all be filled with high temperature fiber in the slit between a kind of energy saving and environment friendly kiln body of the utility model and the VN alloy high temperature sintering furnace calandria above the average that is applied to thereof, lower horizontal calandria and the plug brick, this high temperature fiber can further stop the heat in the kiln to be dispersed outside kiln, thereby again reduce energy consumption, and reduce the temperature of peripheral operation environment.Therefore not only specific energy consumption is lower for the utility model, and operating condition is better.
3, have additional seal box or lower seal box at the other end of calandria in a kind of energy saving and environment friendly kiln body of the utility model and the VN alloy high temperature sintering furnace that is applied to thereof, the structure of upper and lower seal box is consistent, include shrouding, box body and copper electrode, the inside of box body is provided with the other end of horizontal calandria or lower horizontal calandria, one end of box body is connected with furnace shell, the other end of box body is connected with shrouding, and the top of box body is provided with intake interface, and the bottom is provided with copper electrode.Seal box not only can with gas isolating inside and outside the kiln, with the processing atmosphere in the assurance kiln, and can inject the required gas of production technology by intake interface in kiln.Therefore the utility model can not only guarantee the processing atmosphere in the kiln, and is convenient to inject the required gas of production technology.
4, VN alloy high temperature sintering furnace in a kind of energy saving and environment friendly kiln body of the utility model and the VN alloy high temperature sintering furnace that is applied to thereof comprises low-temperature zone, changeover portion, high temperature section and cooling section, wherein, low-temperature zone, changeover portion, high temperature section all adopts the kiln structure of described energy saving and environment friendly kiln body, difference is low-temperature zone, changeover portion, the manufactured materials of parts is different in the high temperature section, the manufactured materials of low-temperature zone is mainly corundum, the manufactured materials of changeover portion is mainly the magnesium zirconium, the manufactured materials of high temperature section is mainly graphite, different manufactured materials can adapt to different calcine technologies, thereby guarantee to calcine effect, improve the quality of products.Therefore calcining effect of the present utility model is better.
5, VN alloy high temperature sintering furnace in a kind of energy saving and environment friendly kiln body of the utility model and the VN alloy high temperature sintering furnace that is applied to thereof comprises low-temperature zone, changeover portion, high temperature section and cooling section, wherein, the calandria of low-temperature zone is taked U-shaped Elema, changeover portion, the calandria of high temperature section is taked W type Si-Mo rod, the U-shaped Elema of comparing, the heating area of W type Si-Mo rod is large, under the same power, can reduce the surface thermal load of heater, improve heater service life, be about 8 months its service life, and prior art is subjected to structure to limit (heater is arranged vertically and the design at heater position of living in) can only adopt U-shaped heater, and only have 5 months its service life.Therefore the service life of heater is longer in the utility model, and replacement frequency is lower, is conducive to reduce production costs.
Description of drawings
Fig. 1 is the structural representation of energy saving and environment friendly kiln body in the utility model.
Fig. 2 is the structural representation of Fig. 1 heating clamber above the average.
Fig. 3 is the structural representation of Fig. 1 middle and lower level heating clamber.
Fig. 4 is the structural representation of lower seal box among Fig. 1.
Fig. 5 is the structural representation of VN alloy high temperature sintering furnace in the utility model.
Among the figure: thermal insulation fire-resistant layer 1, furnace shell 11, calcining compartment 2, top board 21, base plate 22, side wall 23, arch brick boss 24, push pedal 25, guide rail 26, limit guide rail 27, kiln wall 28, bridge pier 29, graphite crucible 3, kiln chamber 31, upper horizontal heating clamber 4, upper horizontal calandria 41, upper insulating pad 42, level arch dome brick 43, vertical key brick 44, upper load bearing board 45, lower horizontal heating clamber 5, lower horizontal calandria 51, lower insulating pad 52, end brick 53, upper seal box 6, lower seal box 7, shrouding 71, box body 72, copper electrode 73, fluorine bipeltate 74, bolt 75, intake interface 76, polytetrafluoroethylene electrode cover 77, plug brick 8, bridge plate 9, VN alloy high temperature sintering furnace 10, low-temperature zone 101, changeover portion 102, high temperature section 103, cooling section 104.
The specific embodiment
Below in conjunction with description of drawings and the specific embodiment the utility model is described in further detail.
Referring to figure 1 – Fig. 5, a kind of energy saving and environment friendly kiln body, comprise thermal insulation fire-resistant layer 1, calcining compartment 2 and graphite crucible 3, be wrapped with furnace shell 11 around the described thermal insulation fire-resistant layer 1, the inside of thermal insulation fire-resistant layer 1 is provided with calcining compartment 2, the inside of calcining compartment 2 is provided with kiln chamber 31, and the inside in kiln chamber 31 is provided with graphite crucible 3; Described calcining compartment 2 comprises top board 21, base plate 22 and side wall 23, the two ends of described top board 21 bottoms are connected by the two ends of side wall 23 with base plate 22 tops, the bottom of described graphite crucible 3 is connected through the top of push pedal 25 with guide rail 26, the top of graphite crucible 3 is provided with arch brick boss 24, the two ends of arch brick boss 24 are connected with the inboard of kiln wall 28, the outside of kiln wall 28 is connected with the inboard of side wall 23, and is formed with kiln chamber 31 between arch brick boss 24, kiln wall 28, guide rail 26, push pedal 25;
Be provided with horizontal heating clamber 4 between described top board 21, the arch brick boss 24, be provided with horizontal calandria 41 on this in the horizontal heating clamber 4; Be provided with lower horizontal heating clamber 5 between described guide rail 26, the base plate 22, be provided with lower horizontal calandria 51 in the horizontal heating clamber 5 of this time, and upward horizontal calandria 41, lower horizontal calandria 51 all are horizontally disposed with.
Described horizontal heating clamber 4 comprises level arch dome brick 43, vertical key brick 44, upper insulating pad 42 and upper load bearing board 45; The two ends of described level arch dome brick 43 are connected with the inboard of side wall 23, the top of level arch dome brick 43 is connected with the bottom of top board 21, the top of described vertical key brick 44 is connected with the bottom of top board 21, and vertically the bottom of key brick 44 is connected with arch brick boss 24; Be provided with horizontal calandria 41 in the cavity that described level arch dome brick 43, side wall 23, arch brick boss 24, vertical key brick 44 surround, upward the bottom of an end of horizontal calandria 41 is connected with the top of arch brick boss 24 by upper insulating pad 42, upper load bearing board 45 successively, and the other end of upper horizontal calandria 41 extends in the upper seal box 6 behind side wall 23, thermal insulation fire-resistant layer 1, furnace shell 11 successively;
Described lower horizontal heating clamber 5 comprises end brick 53 and lower insulating pad 52; The top of brick of the described end 53 is connected with the bottom of guide rail 26, the bottom of end brick 53 is connected with the top of base plate 22, be provided with lower horizontal calandria 51 in the cavity of end brick 53 inside, the bottom of one end of the horizontal calandria 51 of this time is connected with the top of base plate 22 by lower insulating pad 52, and the other end of lower horizontal calandria 51 extends in the lower seal box 7 behind side wall 23, thermal insulation fire-resistant layer 1, furnace shell 11 successively.
The position that is positioned at thermal insulation fire-resistant layer 1 on described horizontal calandria 41, the lower horizontal calandria 51 all is connected with bridge plate 9 by plug brick 8; The two ends of described plug brick 8 are connected with furnace shell 11, side wall 23 respectively, and the bottom is connected with upper horizontal calandria 41 or lower horizontal calandria 51, and the top is connected with bridge plate 9, and an end of bridge plate 9 is connected with furnace shell 11, and the other end extends to the inside of side wall 23.
All be filled with high temperature fiber in the slit between described horizontal calandria 41, lower horizontal calandria 51 and the plug brick 8.
The structure of described upper seal box 6, lower seal box 7 is consistent, includes shrouding 71, box body 72 and copper electrode 73; The inside of described box body 72 is provided with the other end of horizontal calandria 41 or lower horizontal calandria 51, one end of box body 72 is connected with furnace shell 11, the other end of box body 72 is connected with shrouding 71, be provided with fluorine bipeltate 74 and bolt 75 in this shrouding 71, the top of box body 72 is provided with intake interface 76, the bottom of box body 72 is provided with copper electrode 73, one end of this copper electrode 73 is positioned at the inside of box body 72, the other end is positioned at the outside of box body 72, and is wrapped with polytetrafluoroethylene electrode cover 77 at copper electrode 73.
The top of brick of the described end 53 is provided with two groups of bridge piers 29 that are parallel to each other, the top of these two groups of bridge piers 29 is embedded with the same guide rail perpendicular with it 26, the top of guide rail 26 is provided with push pedal 25, the sidepiece of guide rail 26 is connected with a side of limit guide rail 27, the opposite side of limit guide rail 27 is connected with the inboard of side wall 23, and the top of limit guide rail 27 is connected with the bottom of kiln wall 28.
A kind of VN alloy high temperature sintering furnace that adopts above-mentioned energy saving and environment friendly kiln body, described VN alloy high temperature sintering furnace 10 comprises low-temperature zone 101, changeover portion 102, high temperature section 103 and cooling section 104, and described low-temperature zone 101 communicates with cooling section 104 after changeover portion 102, high temperature section 103 successively;
Described low-temperature zone 101, changeover portion 102, high temperature section 103 all adopt the kiln structure of described energy saving and environment friendly kiln body;
In the described low-temperature zone 101: the manufactured materials of described top board 21, level arch dome brick 43, vertical key brick 44, arch brick boss 24, kiln wall 28, upper insulating pad 42, lower insulating pad 52, upper load bearing board 45, guide rail 26, limit guide rail 27 all is corundum, and described horizontal calandria 41, lower horizontal calandria 51 are U-shaped Elema;
In the described changeover portion 102: the manufactured materials of described top board 21, level arch dome brick 43, vertical key brick 44, arch brick boss 24, kiln wall 28, upper load bearing board 45, guide rail 26, limit guide rail 27 all is the magnesium zirconium, the manufactured materials of described upper insulating pad 42, lower insulating pad 52 is corundum, and described horizontal calandria 41, lower horizontal calandria 51 are W type Si-Mo rod;
In the described high temperature section 103: the manufactured materials of described top board 21, level arch dome brick 43, vertical key brick 44, arch brick boss 24, kiln wall 28, upper load bearing board 45, guide rail 26, limit guide rail 27 all is graphite, the manufactured materials of described upper insulating pad 42, lower insulating pad 52 is corundum, and described horizontal calandria 41, lower horizontal calandria 51 are W type Si-Mo rod.
In described low-temperature zone 101, changeover portion 102, the high temperature section 103: the manufactured materials of described base plate 22, side wall 23 all is hollow ball, and the manufactured materials of described push pedal 25 is graphite.
Principle of the present utility model is described as follows:
One, upper horizontal calandria 41, lower horizontal calandria 51 and high temperature fiber:
Referring to figure 1 – Fig. 3, the energy saving and environment friendly kiln body of the utility model comprises two heaters, be respectively the lower horizontal calandria 51 in upper horizontal calandria 41 and the lower horizontal heating clamber 5 in the horizontal heating clamber 4, and upper horizontal calandria 41, lower horizontal calandria 51 are horizontally disposed with all.Because upper horizontal calandria 41, lower horizontal calandria 51 are all horizontally disposed, and the power that heated gas flows in the horizontal direction is less, thereby the heated gas in the kiln is distributed the kiln discharge body with regard to being difficult for by the slit between calandria, the plug brick 8, not only heat-energy losses is few, specific energy consumption is low, and the temperature of lifting peripheral operation environment that can be not too much.In addition, the utility model can also be filled with high temperature fiber (in the prior art in the slit between calandria, plug brick 8, because heater is arranged vertically, thereby the slit between the heater, plug brick also is vertical, even be filled into high temperature fiber, under action of gravitation, high temperature fiber also can fall, be difficult to stop gas to distribute the kiln discharge body from the slit), high temperature fiber can further stop the heat in the kiln to be dispersed outside kiln, thereby again reduces energy consumption and the temperature that reduces the peripheral operation environment.At present, press GB/T20567 – 2006 standards, the employing patent No. is that the prior art of ZL200410083901.8 is produced the VN16 product, the product power consumption is 9000 kilowatt hour/tons (take vanadic anhydrides as raw material), and the production of use the utility model, under identical process conditions, produce the VN16 product, the product power consumption is reduced to 6500 kilowatt hour/tons, energy consumption of unit product reduces by 27.8%, in addition, the surface temperature on kiln top is up to 200 ℃ in the prior art, and operating condition is more abominable, also only have 70 ℃ and the surface temperature on kiln top is the highest in the utility model, operating condition has obtained very big improvement.
High temperature fiber: be mainly the crystal fibre cotton, act as heat insulation and insulation because need high temperature resistant and insulation, so this type of high temperature fiber composition mostly is aluminium oxide or zirconia class, but zirconia class price, so commonly used be alumina type.
Two, upper seal box 6 and lower seal box 7:
Referring to Fig. 4, the utility model is provided with seal box at heater, is specially seal box 6 and lower seal box 7.The structure of upper seal box 6, lower seal box 7 is consistent, includes shrouding 71, box body 72 and copper electrode 73, and an end of box body 72 is connected with furnace shell 11, and the other end of box body 72 is connected with shrouding 71.The top of box body 72 is provided with intake interface 76, and the bottom of box body 72 is provided with copper electrode 73, and an end of this copper electrode 73 is positioned at the inside of box body 72, and the other end is positioned at the outside of box body 72, and is wrapped with polytetrafluoroethylene electrode cover 77 at copper electrode 73.During use, upper seal box 6, lower seal box 7 can not only be hedged off from the outer world heater, can be with gas isolating inside and outside the kiln, to guarantee the processing atmosphere in the kiln, realize the effect of sealing, and can in kiln, inject the required gas of production technology by intake interface 76, very convenient operation.
Specific design is: an end of box body 72 is welded on the furnace shell 11, and the other end of box body 72 is welded on the Baltimore groove, and groove is embedded in fluorine bipeltate 74, and box body 72 end faces and shrouding 71 compress fluorine bipeltate 74 after connecting by bolt 75, form end face seal; The cold junction of upper horizontal calandria 41 or lower horizontal calandria 51 is connected with an end of copper electrode 73 by high temperature resistant wire, the other end of copper electrode 73 is connected to reach the purpose that heater connects electricity with external cable, be wrapped with polytetrafluoroethylene electrode cover 77 on the copper electrode 73, this polytetrafluoroethylene electrode cover 77 plays the effect of copper electrode 73 and box body 72 insulation on the one hand, compressed polytetrafluoroethylene electrode cover 77 after copper electrode 73, box body 72 are bolted on the other hand, thereby the formation polytetrafluoroethylene electrode overlaps the end face seal between 77 end faces and the box body 72.
Three, various cavity body structures:
The utility model be owing to will calcine and shelve upper horizontal calandria 41, lower horizontal calandria 51 to graphite crucible 3, thereby is provided with various cavity body structures, and concrete condition is as follows:
1, the kiln chamber 31:
Referring to Fig. 1, kiln chamber 31 is positioned at the inside of calcining compartment 2, and kiln chamber 31 is surrounded by arch brick boss 24, kiln wall 28, guide rail 26, push pedal 25, and is provided with graphite crucible 3 in the inside in kiln chamber 31.Wherein, the top of graphite crucible 3 is provided with arch brick boss 24, and the two ends of arch brick boss 24 are connected with the inboard of kiln wall 28, and the outside of kiln wall 28 is connected with the inboard of side wall 23.
2, upper heating chamber:
Referring to Fig. 2, be provided with horizontal calandria 41 in the upper horizontal heating clamber 4, upper horizontal calandria 41 residing cavitys are heating chamber.Upper heating chamber is surrounded (particularly by level arch dome brick 43, side wall 23, arch brick boss 24, vertical key brick 44, the top is level arch dome brick 43, the below is arch brick boss 24, side wall 23 all around, the middle part is vertical key brick 44), wherein, the two ends of level arch dome brick 43 are connected with the inboard of side wall 23, the top of level arch dome brick 43 is connected with the bottom of top board 21, vertically the top of key brick 44 is connected with the bottom of top board 21, and vertically the bottom of key brick 44 is connected with arch brick boss 24.The bottom that is arranged in the heating chamber position on the upper horizontal calandria 41 is that by the effect of upper insulating pad 42, the upper load bearing board 45 of upper load bearing board 45(the power that provides support is to hold up upper horizontal calandria 41 successively) be connected with the top of arch brick boss 24, the other end of upper horizontal calandria 41 extends in the upper seal box 6 behind side wall 23, thermal insulation fire-resistant layer 1, furnace shell 11 successively.
3, lower heating chamber:
Referring to Fig. 3, be provided with lower horizontal calandria 51 in the lower horizontal heating clamber 5, lower horizontal calandria 51 residing cavitys are lower heating chamber.Lower heating chamber is the cavity of end brick 53 inside, end brick is connected with guide rail 26, base plate 22 respectively at two ends about in the of 53, be provided with lower horizontal calandria 51 in the cavity of end brick 53 inside, the bottom of lower horizontal calandria 51 is provided with lower insulating pad 52(because the below of lower insulating pad 52 is base plates 22 of solid construction, support force is enough, thereby do not need additionally to arrange load bearing board herein), the bottom of lower insulating pad 52 is connected with the top of base plate 22.
Four, push pedal 25 and slide rail 26:
Referring to Fig. 3, the top of end brick 53 is provided with two groups of bridge piers 29 that are parallel to each other, the top of two groups of bridge piers 29 is embedded with the same guide rail perpendicular with it 26, guide rail 26 is horizontally disposed, the top of guide rail 26 is provided with push pedal 25, and the top of push pedal 25 is provided with graphite crucible 3, and the sidepiece of guide rail 26 is connected with a side of limit guide rail 27, the opposite side of limit guide rail 27 is connected with the inboard of side wall 23, and the top of limit guide rail 27 is connected with the bottom of kiln wall 28.
Five, the manufactured materials of low-temperature zone 101, changeover portion 102, high temperature section 103 and the selection of calandria:
The manufactured materials of base plate 22, side wall 23 all is hollow ball in low-temperature zone 101, changeover portion 102, the high temperature section 103, its reason is: hollow ball is high temperature resistant and insulation, but rupture strength is relatively poor, base plate 22, side wall 23 are entity structure, need not make somebody a mere figurehead, thereby the intensity aspect is out of question, so adopt the hollow ball manufacturing.
During calcining, low-temperature zone 101 calcining heats are not high, only have steam to discharge, and corundum and water do not react, so the manufactured materials of parts is taked corundum in the low-temperature zone 101; The calcining heat of changeover portion 102 is higher, have highly basic gas and carbon monoxide, carbon dioxide discharge, magnesian can resist the erosion of these gases, but the magnesian thermal shock resistance is poor, thereby add zirconium to improve the material thermal shock resistance, so the manufactured materials of parts is taked the magnesium zirconium in the changeover portion 102; The calcining heat of high temperature section 103 is very high, and the high temperature resistance of graphite is better, in addition the moisture in the calcined materials with corrode gas in low-temperature zone 101, changeover portion 102, got rid of complete, so the manufactured materials of parts is taked graphite in the high temperature section 103.
Heater is taked U-shaped Elema in the low-temperature zone 101, changeover portion 102, heater takes the reason of W type Si-Mo rod to be in the high temperature section 103: changeover portion 102,103 pairs of temperature requirements of high temperature section are higher, not only heating effect is better for W type Si-Mo rod, and its heating area is large, under same power, can reduce the heater surface thermal load, improve heater service life, be about 8 months the service life of W type heater, simultaneously, the utility model is at changeover portion 102, can adopt W type Si-Mo rod also to be the support of " heater is horizontally disposed " characteristics in the high temperature section 103, if the prior art in the background technology, it is limit by structure can only adopt U-shaped heater, and only have 5 months the service life of U-shaped heater, adopt it can improve replacement frequency, increase production cost.
Embodiment 1:
Referring to figure 1 – Fig. 4, a kind of energy saving and environment friendly kiln body, comprise thermal insulation fire-resistant layer 1, calcining compartment 2, graphite crucible 3, upper horizontal heating clamber 4, lower horizontal heating clamber 5, upper seal box 6 and lower seal box 7, be wrapped with furnace shell 11 around the described thermal insulation fire-resistant layer 1, the inside of thermal insulation fire-resistant layer 1 is provided with calcining compartment 2, the inside of calcining compartment 2 is provided with kiln chamber 31, and the inside in kiln chamber 31 is provided with graphite crucible 3; Described calcining compartment 2 comprises top board 21, base plate 22 and side wall 23, the two ends of described top board 21 bottoms are connected by the two ends of side wall 23 with base plate 22 tops, the bottom of described graphite crucible 3 is connected through the top of push pedal 25 with guide rail 26, the top of graphite crucible 3 is provided with arch brick boss 24, the two ends of arch brick boss 24 are connected with the inboard of kiln wall 28, the outside of kiln wall 28 is connected with the inboard of side wall 23, and is formed with kiln chamber 31 between arch brick boss 24, kiln wall 28, guide rail 26, push pedal 25;
Be provided with horizontal heating clamber 4 between described top board 21, the arch brick boss 24, described horizontal heating clamber 4 comprises level arch dome brick 43, vertical key brick 44, upper insulating pad 42 and upper load bearing board 45; The two ends of described level arch dome brick 43 are connected with the inboard of side wall 23, the top of level arch dome brick 43 is connected with the bottom of top board 21, the top of described vertical key brick 44 is connected with the bottom of top board 21, and vertically the bottom of key brick 44 is connected with arch brick boss 24; Be provided with horizontal calandria 41 in the cavity that described level arch dome brick 43, side wall 23, arch brick boss 24, vertical key brick 44 surround, upward the bottom of an end of horizontal calandria 41 is connected with the top of arch brick boss 24 by upper insulating pad 42, upper load bearing board 45 successively, and the other end of upper horizontal calandria 41 extends in the upper seal box 6 behind side wall 23, thermal insulation fire-resistant layer 1, furnace shell 11 successively;
Be provided with lower horizontal heating clamber 5 between described guide rail 26, the base plate 22, described lower horizontal heating clamber 5 comprises end brick 53 and lower insulating pad 52; The top of brick of the described end 53 is connected with the bottom of guide rail 26, the bottom of end brick 53 is connected with the top of base plate 22, be provided with lower horizontal calandria 51 in the cavity of end brick 53 inside, the bottom of one end of the horizontal calandria 51 of this time is connected with the top of base plate 22 by lower insulating pad 52, and the other end of lower horizontal calandria 51 extends in the lower seal box 7 behind side wall 23, thermal insulation fire-resistant layer 1, furnace shell 11 successively;
The position that is positioned at thermal insulation fire-resistant layer 1 on described horizontal calandria 41, the lower horizontal calandria 51 all is connected with bridge plate 9 by plug brick 8, all is filled with high temperature fiber in the slit between upper horizontal calandria 41, lower horizontal calandria 51 and the plug brick 8; The two ends of described plug brick 8 are connected with furnace shell 11, side wall 23 respectively, and the bottom is connected with upper horizontal calandria 41 or lower horizontal calandria 51, and the top is connected with bridge plate 9, and an end of bridge plate 9 is connected with furnace shell 11, and the other end extends to the inside of side wall 23;
The structure of described upper seal box 6, lower seal box 7 is consistent, includes shrouding 71, box body 72 and copper electrode 73; The inside of described box body 72 is provided with the other end of horizontal calandria 41 or lower horizontal calandria 51, one end of box body 72 is connected with furnace shell 11, the other end of box body 72 is connected with shrouding 71, be provided with fluorine bipeltate 74 and bolt 75 in this shrouding 71, the top of box body 72 is provided with intake interface 76, the bottom of box body 72 is provided with copper electrode 73, one end of this copper electrode 73 is positioned at the inside of box body 72, the other end is positioned at the outside of box body 72, and is wrapped with polytetrafluoroethylene electrode cover 77 at copper electrode 73;
The top of brick of the described end 53 is provided with two groups of bridge piers 29 that are parallel to each other, the top of these two groups of bridge piers 29 is embedded with the same guide rail perpendicular with it 26, the top of guide rail 26 is provided with push pedal 25, the sidepiece of guide rail 26 is connected with a side of limit guide rail 27, the opposite side of limit guide rail 27 is connected with the inboard of side wall 23, and the top of limit guide rail 27 is connected with the bottom of kiln wall 28.
Referring to Fig. 5, a kind of VN alloy high temperature sintering furnace that adopts above-mentioned energy saving and environment friendly kiln body, described VN alloy high temperature sintering furnace 10 comprises low-temperature zone 101, changeover portion 102, high temperature section 103 and cooling section 104, described low-temperature zone 101 communicates with cooling section 104 after changeover portion 102, high temperature section 103 successively, and low-temperature zone 101, changeover portion 102, high temperature section 103 all adopt the kiln structure (Fig. 1 is the longitudinal sectional view of low-temperature zone 101, changeover portion 102, high temperature section 103) of described energy saving and environment friendly kiln body; The manufactured materials of described base plate 22, side wall 23 all is hollow ball, and the manufactured materials of described push pedal 25 is graphite;
In the described low-temperature zone 101: the manufactured materials of described top board 21, level arch dome brick 43, vertical key brick 44, arch brick boss 24, kiln wall 28, upper insulating pad 42, lower insulating pad 52, upper load bearing board 45, guide rail 26, limit guide rail 27 all is corundum, and described horizontal calandria 41, lower horizontal calandria 51 are U-shaped Elema;
In the described changeover portion 102: the manufactured materials of described top board 21, level arch dome brick 43, vertical key brick 44, arch brick boss 24, kiln wall 28, upper load bearing board 45, guide rail 26, limit guide rail 27 all is the magnesium zirconium, the manufactured materials of described upper insulating pad 42, lower insulating pad 52 is corundum, and described horizontal calandria 41, lower horizontal calandria 51 are W type Si-Mo rod;
In the described high temperature section 103: the manufactured materials of described top board 21, level arch dome brick 43, vertical key brick 44, arch brick boss 24, kiln wall 28, upper load bearing board 45, guide rail 26, limit guide rail 27 all is graphite, the manufactured materials of described upper insulating pad 42, lower insulating pad 52 is corundum, and described horizontal calandria 41, lower horizontal calandria 51 are W type Si-Mo rod.
At present, adopting the patent No. is that the ZL200410083901.8 prior art is produced, and it is higher to consume energy, and presses GB/T20567 – 2006 standards, produces the VN16 product, and the product power consumption is 9000 kilowatt hour/tons (take vanadic anhydrides as raw material); And use the utility model production, and under identical process conditions, produce the VN16 product, the product power consumption is reduced to 6500 kilowatt hour/tons, and energy consumption of unit product reduces by 27.8%.Table 1 is that the utility model and the patent No. are the contrast situation of ZL200410083901.8 prior art, and A represents the prior art that the patent No. is ZL200410083901.8, and B represents the utility model:
Claims (8)
1. energy saving and environment friendly kiln body, comprise thermal insulation fire-resistant layer (1), calcining compartment (2) and graphite crucible (3), be wrapped with furnace shell (11) around the described thermal insulation fire-resistant layer (1), the inside of thermal insulation fire-resistant layer (1) is provided with calcining compartment (2), the inside of calcining compartment (2) is provided with kiln chamber (31), and the inside of kiln chamber (31) is provided with graphite crucible (3); Described calcining compartment (2) comprises top board (21), base plate (22) and side wall (23), the two ends of described top board (21) bottom are connected by the two ends of side wall (23) with base plate (22) top, the bottom of described graphite crucible (3) is connected through the top of push pedal (25) with guide rail (26), the top of graphite crucible (3) is provided with arch brick boss (24), the two ends of arch brick boss (24) are connected with the inboard of Yao Qiang (28), the outside of kiln wall (28) is connected with the inboard of side wall (23), and in arch brick boss (24), kiln wall (28), guide rail (26), be formed with kiln chamber (31) between the push pedal (25), it is characterized in that:
Be provided with horizontal heating clamber (4) between described top board (21), the arch brick boss (24), be provided with horizontal calandria (41) on this in the horizontal heating clamber (4); Be provided with lower horizontal heating clamber (5) between described guide rail (26), the base plate (22), be provided with lower horizontal calandria (51) in the horizontal heating clamber of this time (5), and upward horizontal calandria (41), lower horizontal calandria (51) all are horizontally disposed with.
2. a kind of energy saving and environment friendly kiln body according to claim 1 is characterized in that:
Described horizontal heating clamber (4) comprises level arch dome brick (43), vertical key brick (44), upper insulating pad (42) and upper load bearing board (45); The two ends of described level arch dome brick (43) are connected with the inboard of side wall (23), the top of level arch dome brick (43) is connected with the bottom of top board (21), the top of described vertical key brick (44) is connected with the bottom of top board (21), and vertically the bottom of key brick (44) is connected with arch brick boss (24); Be provided with horizontal calandria (41) in the cavity that described level arch dome brick (43), side wall (23), arch brick boss (24), vertical key brick (44) surround, upward the bottom of an end of horizontal calandria (41) is connected with the top of arch brick boss (24) by upper insulating pad (42), upper load bearing board (45) successively, and the other end of upper horizontal calandria (41) extends in the upper seal box (6) behind side wall (23), thermal insulation fire-resistant layer (1), furnace shell (11) successively;
Described lower horizontal heating clamber (5) comprises end brick (53) and lower insulating pad (52); The top of brick of the described end (53) is connected with the bottom of guide rail (26), the bottom of end brick (53) is connected with the top of base plate (22), be provided with lower horizontal calandria (51) in the cavity of end brick (53) inside, the bottom of one end of the horizontal calandria of this time (51) is connected by the top of lower insulating pad (52) with base plate (22), and the other end of lower horizontal calandria (51) extends in the lower seal box (7) behind side wall (23), thermal insulation fire-resistant layer (1), furnace shell (11) successively.
3. a kind of energy saving and environment friendly kiln body according to claim 2 is characterized in that: the position that is positioned at thermal insulation fire-resistant layer (1) on described horizontal calandria (41), the lower horizontal calandria (51) all is connected with bridge plate (9) by plug brick (8); The two ends of described plug brick (8) are connected with furnace shell (11), side wall (23) respectively, the bottom is connected with upper horizontal calandria (41) or lower horizontal calandria (51), the top is connected with bridge plate (9), one end of bridge plate (9) is connected with furnace shell (11), and the other end extends to the inside of side wall (23).
4. a kind of energy saving and environment friendly kiln body according to claim 3 is characterized in that: all be filled with high temperature fiber in the slit between described horizontal calandria (41), lower horizontal calandria (51) and the plug brick (8).
5. according to claim 2,3 or 4 described a kind of energy saving and environment friendly kiln bodies, it is characterized in that: the structure of described upper seal box (6), lower seal box (7) is consistent, includes shrouding (71), box body (72) and copper electrode (73); The inside of described box body (72) is provided with the other end of horizontal calandria (41) or lower horizontal calandria (51), one end of box body (72) is connected with furnace shell (11), the other end of box body (72) is connected with shrouding (71), be provided with fluorine bipeltate (74) and bolt (75) in this shrouding (71), the top of box body (72) is provided with intake interface (76), the bottom of box body (72) is provided with copper electrode (73), one end of this copper electrode (73) is positioned at the inside of box body (72), the other end is positioned at the outside of box body (72), and is wrapped with polytetrafluoroethylene electrode cover (77) at copper electrode (73).
6. according to claim 2,3 or 4 described a kind of energy saving and environment friendly kiln bodies, it is characterized in that: the top of brick of the described end (53) is provided with the two groups of bridge piers (29) that are parallel to each other, the top of these two groups of bridge piers (29) is embedded with the same guide rail perpendicular with it (26), the top of guide rail (26) is provided with push pedal (25), the sidepiece of guide rail (26) is connected with a side of limit guide rail (27), the opposite side of limit guide rail (27) is connected with the inboard of side wall (23), and the top of limit guide rail (27) is connected with the bottom of Yao Qiang (28).
7. VN alloy high temperature sintering furnace that adopts the described energy saving and environment friendly kiln body of claim 6, described VN alloy high temperature sintering furnace (10) comprises low-temperature zone (101), changeover portion (102), high temperature section (103) and cooling section (104), described low-temperature zone (101) communicates with cooling section (104) after changeover portion (102), high temperature section (103) successively, it is characterized in that:
Described low-temperature zone (101), changeover portion (102), high temperature section (103) all adopt the kiln structure of described energy saving and environment friendly kiln body;
In the described low-temperature zone (101): the manufactured materials of described top board (21), level arch dome brick (43), vertical key brick (44), arch brick boss (24), kiln wall (28), upper insulating pad (42), lower insulating pad (52), upper load bearing board (45), guide rail (26), limit guide rail (27) all is corundum, and described horizontal calandria (41), lower horizontal calandria (51) are U-shaped Elema;
In the described changeover portion (102): the manufactured materials of described top board (21), level arch dome brick (43), vertical key brick (44), arch brick boss (24), kiln wall (28), upper load bearing board (45), guide rail (26), limit guide rail (27) all is the magnesium zirconium, the manufactured materials of described upper insulating pad (42), lower insulating pad (52) is corundum, and described horizontal calandria (41), lower horizontal calandria (51) are W type Si-Mo rod;
In the described high temperature section (103): the manufactured materials of described top board (21), level arch dome brick (43), vertical key brick (44), arch brick boss (24), kiln wall (28), upper load bearing board (45), guide rail (26), limit guide rail (27) all is graphite, the manufactured materials of described upper insulating pad (42), lower insulating pad (52) is corundum, and described horizontal calandria (41), lower horizontal calandria (51) are W type Si-Mo rod.
8. a kind of VN alloy high temperature sintering furnace that adopts energy saving and environment friendly kiln body according to claim 7, it is characterized in that: in described low-temperature zone (101), changeover portion (102), the high temperature section (103): the manufactured materials of described base plate (22), side wall (23) all is hollow ball, and the manufactured materials of described push pedal (25) is graphite.
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| CN 201220434950 CN202747793U (en) | 2012-08-30 | 2012-08-30 | Energy-saving and environment-friendly kiln body and vanadium-nitrogen alloy high-temperature sintering kiln applying the energy-saving and environment-friendly kiln body |
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| CN 201220434950 CN202747793U (en) | 2012-08-30 | 2012-08-30 | Energy-saving and environment-friendly kiln body and vanadium-nitrogen alloy high-temperature sintering kiln applying the energy-saving and environment-friendly kiln body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853670A (en) * | 2012-08-30 | 2013-01-02 | 甘锦旺 | Energy-saving and environmentally-friendly kiln body and vanadium-nitrogen alloy high-temperature sintering kiln adopting energy-saving and environmentally-friendly kiln body |
| CN107421324A (en) * | 2017-07-24 | 2017-12-01 | 湖南众鑫新材料科技股份有限公司 | A kind of dou-ble-pusher kiln for producing ferrovanadium nitride |
-
2012
- 2012-08-30 CN CN 201220434950 patent/CN202747793U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853670A (en) * | 2012-08-30 | 2013-01-02 | 甘锦旺 | Energy-saving and environmentally-friendly kiln body and vanadium-nitrogen alloy high-temperature sintering kiln adopting energy-saving and environmentally-friendly kiln body |
| CN102853670B (en) * | 2012-08-30 | 2014-08-06 | 甘锦旺 | Energy-saving and environmentally-friendly kiln body and vanadium-nitrogen alloy high-temperature sintering kiln adopting energy-saving and environmentally-friendly kiln body |
| CN107421324A (en) * | 2017-07-24 | 2017-12-01 | 湖南众鑫新材料科技股份有限公司 | A kind of dou-ble-pusher kiln for producing ferrovanadium nitride |
| CN107421324B (en) * | 2017-07-24 | 2019-06-04 | 湖南众鑫新材料科技股份有限公司 | A kind of dou-ble-pusher kiln producing ferrovanadium nitride |
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