CN203238042U - Calcium carbide reactor - Google Patents
Calcium carbide reactor Download PDFInfo
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- CN203238042U CN203238042U CN2012207262675U CN201220726267U CN203238042U CN 203238042 U CN203238042 U CN 203238042U CN 2012207262675 U CN2012207262675 U CN 2012207262675U CN 201220726267 U CN201220726267 U CN 201220726267U CN 203238042 U CN203238042 U CN 203238042U
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Abstract
The utility model discloses a calcium carbide reactor, which solves the problem that the calcium carbide and the synthesized gas heat are non-uniformly distributed inside the calcium carbide reactor and the reaction time and effect of the calcium carbide are influenced. The calcium carbide reactor comprises a closed-type reaction furnace, wherein the closed-type reaction furnace consists of an upper shock cooling chamber, a middle gasification chamber, a lower reaction chamber and a bottom calcium carbide pool, the top of the shock cooling chamber is provided with an air outlet and a first feeding port, the side wall of the shock cooling chamber is provided with a plurality of second feeding ports, an starting ignition combined burner and an oxygen burner are arranged inside the gasification chamber, an oxygen burner is arranged in the reaction chamber, a discharging port is arranged on the bottom of the calcium carbide pool, a plurality of oxygen burners are uniformly arranged inside the reaction chamber along the circumferential direction, the oxygen burners are symmetrically arranged in the radial direction, a horizontal tangential angle is 10 to 20DEG, and a downward dip angle is 10 to 30DEG. The calcium carbide reactor is simple in structure, safe, reliable, more uniform in heat distribution, high in calcium carbide reaction efficiency, high in calcium carbide purity, small in loss of a fireplace and low in consumption rate of raw materials and fuel.
Description
Technical field
The utility model relates to a kind of equipment for preparing calcium carbide and synthetic gas, specifically a kind of calcium carbide reactor.
Background technology
Two kinds of the hot method of production method aerobic of calcium carbide and electric heating process, in the calcium carbide production about the hot method of oxygen, the application number of China Wuhuan Engineering Co., Ltd and Henan coal industry Chemical Group research institute limited liability company co-applications is 201010581701.0, publication number is 102153085A, introduced the method that a kind of calcium carbide reactor and the hot method reaction of oxygen prepare calcium carbide and synthetic gas in the application for a patent for invention of denomination of invention for " the hot method reaction of oxygen prepares method and the calcium carbide reactor of calcium carbide and synthetic gas ", wherein the calcium carbide reactor comprises gas-solid separator, the below of gas-solid separator is provided with closed Reaktionsofen, and described closed Reaktionsofen is by the preheating chamber on top, the vaporizer at middle part, the reaction chamber of bottom consists of.The method that the hot method reaction of oxygen prepares calcium carbide and synthetic gas is carried out in above-mentioned reactor, to be sent into by opening for feed through coal-grinding and dry carbon raw material and calcic raw material, pass through successively preheating chamber (claiming again quench chamber), vaporizer to reaction chamber (its bottom is equivalent to the calcium carbide pond), carbon raw material and the preheating in preheating chamber of calcic raw material, the coal that is vaporized chamber 4 in vaporizer burns chews 16 coal dusts that spray into and the further preheating of oxygen-rich mixture flaming combustion heat, and the part of carbon raw material is chewed the pure oxygen flaming combustion that sprays into and produced 1700 with being burnt by oxygen in vaporizer
oThe above high temperature of C at high temperature reacts the remainder coal dust and generates calcium carbide and CO with calcium oxide.
The contriver is further finding that technique scheme has following technical problem in the R﹠D process:
1. the angle of the second opening for feed is not good, in the technique scheme, the downward inclination angle of the second opening for feed of described preheating chamber sidewall is 10-30 °, and tangential angle is 3-10 °, find in the actual research and development, under this angle, the smooth descending effect of material is still not ideal enough, if the particle size reduction of material, then descending effect is poorer, so wish further to be improved, guaranteeing can descend the smoothly preheating and participate in the calcium carbide reaction of more material, and can not taken out of reactor by upstream.
2. in order to satisfy the temperature requirement of calcium carbide reaction, all make it be in the condition of high temperature by flaming combustion in vaporizer, the reaction chamber, the furnace wall heatproof requires the highest should reaching more than 2000 ℃, owing to pass into a large amount of oxygen combustions to keep high temperature in the stove, can not satisfy service requirements as high-temperature refractory commonly used (general refractory brick is the high temperature of about 1850 ℃ of abilities only), and can satisfy resistant to elevated temperatures refractory materials such as carbon brick etc. under the above-mentioned condition of high temperature, carbon in the carbon brick can react with oxygen and cause the furnace wall loss, can't realize high temperature resistant long-life requirement.
Since the existence of above-mentioned technical problem, application number be 201010581701.0 technical scheme when actual motion, the theoretical value that the calcium carbide purity of actual production, gas production rate, speed of response design has the gap of 20-30%.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, a kind of calcium carbide reactor is provided, this structure of reactor is simple, can carry out simultaneously the reaction of preheating of fuel and calcium carbide, relates to that equipment is few, investment and running cost is low, high-temperature resistant result is good, long service life.
The utility model calcium carbide reactor, comprise closed Reaktionsofen, quench chamber by top, the vaporizer at middle part, the calcium carbide pond of the reaction chamber of bottom and bottom consists of, described quench chamber top is provided with the air outlet, the first opening for feed, sidewall is established a plurality of the second opening for feeds, establish go into operation igniting assembled nozzle and oxygen burner in the described vaporizer, described reaction chamber is provided with the oxygen burner, bottom, described calcium carbide pond is provided with discharge port, along the circumferential direction evenly be provided with a plurality of oxygen burners in the described reaction chamber, described a plurality of oxygen burner radial symmetry arranges that the horizontal tangential angle is 10-20 °, and the inclination angle is 10-30 ° downwards.
A plurality of oxygen burners are arranged in the described vaporizer, described a plurality of oxygen burners along the circumferential direction evenly distribute and radially over against, the inclination angle is 10-30 ° downwards
The downward inclination angle of described the second opening for feed is 45-60 °, a plurality of second opening for feed in same cross section over against being evenly arranged.
Described, reaction chamber sidewall wall is followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): silicon nitride-silicon carbide silica brick layer, copper cooling wall layer, filler layer and metal shell layer.
Described calcium carbide pond sidewall wall is followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): ceramic refractory layer, high aluminium brick layer, refractory fireclay block layer and metal shell layer; Calcium carbide pond bottom wall is followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): ceramic refractory layer, self-baked charcoal brick layer, light carbon brick layer, high aluminium brick layer, heat resistance concrete layer and metal shell layer.
The utility model nonflame oxidation heating method prepares the method for calcium carbide and synthetic gas, will send into quench chamber by opening for feed through grinding with the mixture of dry carbon raw material and the formation of calcic raw material, simultaneously the carbon in the part carbon raw material and the CO of quench chamber
2Thermo-negative reaction generation CO occurs to be discharged by the air outlet, remaining carbon raw material and calcic raw material descend together and enter reaction chamber after the further preheatings of vaporizer, at the reaction indoor carbon, the heat of high temperature of carbon monoxide and pure oxygen reaction makes residue carbon raw material and calcic material temperature reach the calcium carbide temperature of reaction, calcium oxide in carbon in the carbon raw material and the calcic raw material generates calcium carbide and CO at calcium carbide pond internal reaction, calcium carbide is through discharge hole for discharge, CO discharges through the air outlet, adopt above-mentioned calcium carbide reactor, control passes into mixed gas in the reaction chamber, and to contain the oxysome volume concentrations be 10～15%, make oxygen and the part carbon raw material generation nonflame oxidizing reaction of process reaction chamber make reaction chamber temperature reach 1700-2000 ℃, the calcium oxide in the carbon in the carbon raw material and the calcic raw material generates calcium carbide and CO in calcium carbide pond and reaction chamber internal reaction.
The high temperature of described vaporizer is 1350-1450 ℃, and the oxygen level that is sprayed into by the oxygen burner of vaporizer is that volumetric concentration 85% above gas mixture has the flame oxidizing fire to keep with the part carbon raw material in vaporizer, and burning generates CO
2Enter quench chamber, except containing oxygen, also contain CO in the described gas mixture
2And/or rare gas element.
The oxygen that the high temperature of described reaction chamber is sprayed into by the oxygen burner of reaction chamber and the gas mixture of CO carry out the nonflame oxidizing fire with the part carbon raw material in reaction chamber keeps, and burning generates CO
2Enter quench chamber, the oxygen level in the described gas mixture is volumetric concentration 10-15%.
The speed that gas mixture by oxygen burner ejection enters reaction chamber is 30-50m/s, form after the nonflame oxidizing fire reaction gas that contains solid particulate matter along the velocity of flow of reaction chamber wall less than or equal to 6m/s, the speed that the fluent meterial of formation flows downward along reaction chamber is less than or equal to 0.2m/s.
The mixture of described calcic powder and fine particles containing carbon sprays with the speed of 7-10m/s by carrier gas and enters quench chamber, wherein, the mixture granularity that is sprayed into by the first opening for feed 5 is 100-500 μ m, by the second opening for feed 7 spray into the mixture granularity be 0.1-100 μ m, and the mixture granularity that sprays into of the first opening for feed 5 should greater than the second opening for feed 7 spray into the mixture granularity.
The utility model is based on the further innovation and creation that application number is 201010581701.0 technical scheme, angle to the oxygen burner of vaporizer and reaction chamber redesigns, find through experiment, by above-mentioned design can effectively solve in vaporizer gas-solid mixture and the reaction chamber to the not good problem of calcium carbide pond mixing effect.The horizontal tangential angle of a plurality of oxygen burners should be 10-20 ° in the reaction chamber, and angle too small can make oxygen and CO and carbon raw material only carry out at the reaction chamber middle part, and temperature distributing disproportionation is even; Cross conference carbon raw material assembled to wall under the effect of centrifugal force, make C and CaO to be distributed in reactor cross-section inhomogeneous, be unfavorable for the generation of calcium carbide.
Further, the downward inclination angle of the second opening for feed is 45-60 °, a plurality of second opening for feed in same cross section over against layout.It is in order to guarantee that the small-particle carbon raw material can enter reaction chamber that downward inclination angle is 45-60 °.The excessive meeting in inclination angle downwards makes particle reduce along wall; Too small meeting makes particulate matter can not fall into reaction chamber.
Because calcium carbide production is pyroreaction, the quench chamber temperature can reach 950-1000 ℃, the vaporizer temperature can reach 1350-1450 ℃, reaction chamber and calcium carbide pond temperature can reach 1700-2000 ℃, this to closed Reaktionsofen furnace wall particularly the fireproof high-temperature resistant performance of reaction chamber and calcium carbide tank furnace wall be a greatly test, the contriver has carried out redesign to adapt to each chamber heat resisting temperature requirement to the furnace wall.
Quench chamber and vaporizer heatproof require in 1500 ℃, adopt high alumina brick and refractory fireclay block to get final product as refractory liner.Quench chamber and vaporizer sidewall wall are followed successively by high aluminium brick layer, refractory fireclay block layer and metal shell layer from the hot side to the huyashi-chuuka (cold chinese-style noodles).
The heatproof in reaction chamber and calcium carbide pond requires to reach more than 2000 ℃, the indoor oxidizing reaction that is, a large amount of oxygen at high temperature react very easily with as the carbon on the carbon brick of refractory materials and form slag and the loss furnace wall, therefore almost there is not alternative refractory materials under this high temperature, the contriver changes thinking technique is improved, spray into the oxygen level of gas in the reaction chamber by control, make the flaming combustion in the reaction chamber become flameless combustion, make indoor temperature distribution more uniform simultaneously, because the decline of oxygen level, the oxygen that sprays into almost all can both participate in oxidizing reaction, greatly reduced the amount that the carbon on oxygen and the carbon brick reacts, can not be for the high temperature resistant problem under the aerobic combustion conditions thereby solved carbon brick.Simultaneously, reaction chamber sidewall wall is followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): silicon nitride-silicon carbide silica brick layer, copper cooling wall layer, filler layer and metal shell layer, in order to prevent the high temperature oxidation abrasion, to reduce the cooling stave body temperature and form the slag crust layer that to protect cooling stave self; Described calcium carbide pond sidewall wall is followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): ceramic refractory layer (corundum-mullite brick or brown corundum brick), high alumina brick, refractory fireclay block layer and metal shell layer; Calcium carbide pond bottom wall is followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): ceramic refractory layer (corundum-mullite brick or brown corundum brick), self-baked charcoal brick layer, light carbon brick layer, high aluminium brick layer heat resistance concrete layer and metal shell layer.This fire resisting construction can prevent well that washing away of melting calcium carbide from corroding and be full of cracks embrittlement and the oxidation damage of carbon brick.
Show through researching and analysing, carrying out the nonflame oxidizing fire in reaction chamber has flame oxidizing fire heat distribution more even, thereby thereby avoid the uneven problem that affects the calcium carbide reaction effect of raw material intensification, even along the descending also evenly fully preheating of raw material of fireplace.Therefore vaporizer still passes into a large amount of oxygen and has kept the flame oxidizing reaction in the utility model, and in reaction chamber control oxygen intake, simultaneously cooperation passes into CO and oxygen and carbon raw material and reacts the realization nonflame oxidizing reaction that is rapidly heated, and guarantees that the carbon raw material and the calcic raw material that finally enter the reaction of calcium carbide pond all can fully be warming up to the condition temperature that calcium carbide reacts.
Further, the contriver also is studied the granularity of raw material, because the first opening for feed is positioned at the Reaktionsofen top, it is relative with the air flow line of rising when falling, and is subjected to airflow influence, and its residence time in each chamber is longer, in dropping process with CO
2Reaction makes the feed particles decomposition and consumption more, therefore the easier fine particle that resolves into should make the feed size of the first opening for feed control large (100-500 μ m), thereby the easier gas-flow resistance that utilizes the gravity antagonism to rise, and guarantee to still have particle can arrive smoothly the calcium carbide pond behind the decomposed; And the second opening for feed is positioned at furnace sidewall, raw material is through walking along wall, resistance is less, the time that arrives the calcium carbide pond is shorter, particle breakdown consumes less, therefore should make the feed size control less (0.1-100 μ m) of the second opening for feed, thereby the raw material granularity when guaranteeing its arrival calcium carbide pond can be surmised the basically identical tiny degree that reaches with the raw material that passes into from the first opening for feed, improves calcium carbide speed of reaction and reliability.
Oxygen and CO and part carbon raw material generation nonflame oxidizing fire in the reaction chamber form the gas (CO that contains solid particulate matter
2Gas) and fluent meterial (slag); the gas that the gas that rises by control contains solid particulate matter along the up speed of wall less than 6m/s; the speed that slag flows downward along reaction chamber is less than or equal to 0.2m/s; make the slag of melting in the surface flow of solid slag; realization is with the purpose of slag anti-slag, and the solid-state slag blanket that forms constant thickness in the furnace wall plays the effect of protection furnace wall.
Described carbon raw material can be coal dust or blue carbon, and described calcic raw material can be calcium oxide or calcium carbonate.
The utility model calcium carbide reactor gathers multi-function in integral whole, but more original calcium carbide reactor pre-heat effect is better, higher, the longer service life Effective Raise calcium carbide speed of reaction of resistance toheat.
Description of drawings
Fig. 1 is the structural representation of the utility model calcium carbide reactor.
Fig. 2 is the A-A synoptic diagram of Fig. 1.
Fig. 3 is the B-B synoptic diagram of Fig. 1.
Fig. 4 is the C-C synoptic diagram of Fig. 1.
Fig. 5 is the local structure synoptic diagram of reaction chamber furnace wall.
Fig. 6 is the local structure synoptic diagram of battery stone sidewall.
Fig. 7 is the local structure synoptic diagram of battery stone bottom wall.
Fig. 8 is flaming combustion and aphlogistic cross section medial temperature distribution plan in the reaction chamber.
Wherein, go into operation igniter burner, 10-oxygen burner, 11-discharge port, 12-metal shell of 1-quench chamber, 2-vaporizer, 3-reaction chamber, 4-calcium carbide pond 5-the first opening for feed, 6-air outlet, 7-the second opening for feed, 8-oxygen burner, 9-.
Embodiment
Calcium carbide reactor embodiment:
Referring to Fig. 1-4, the utility model calcium carbide reactor comprises closed Reaktionsofen, described closed Reaktionsofen is made of the quench chamber 1 on top, the vaporizer 2 at middle part, the reaction chamber 3 of bottom and the calcium carbide pond 4 of bottom, described quench chamber 1 top is provided with air outlet 6, the first opening for feed 5, sidewall is established a plurality of the second opening for feeds 7, the downward inclination angle of described the second opening for feed 7 is 45-60 °, a plurality of second opening for feed 7 in same cross section over against being evenly arranged; Establish go into operation igniting assembled nozzle 9 and a plurality of oxygen burner 8 in the described vaporizer 2, described a plurality of oxygen burners 8 along the circumferential direction evenly distribute and radially over against, the inclination angle is 10-30 ° downwards; Along the circumferential direction evenly be provided with a plurality of oxygen burners 10 in the described reaction chamber 3, described a plurality of oxygen burner 10 radial symmetry arrange that the horizontal tangential angle is 10-20 °, and the inclination angle is 10-30 ° downwards, and 4 bottoms, described calcium carbide pond are provided with discharge port 11.
Because the calcium carbide reactor is high-temperature reactor, so its inner each several part should perform every processing high temperature resistant and abrasion according to corresponding working temperature, and described quench chamber 1 and vaporizer 2 adopt high alumina bricks and refractory fireclay block as refractory liner.Quench chamber and vaporizer sidewall wall are followed successively by high aluminium brick layer, refractory fireclay block layer and metal shell layer from the hot side to the huyashi-chuuka (cold chinese-style noodles); , reaction chamber 3 sidewall walls are followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): silicon nitride-silicon carbide silica brick layer 3.1, copper cooling wall layer 3.2, filler layer 3.3 and metal shell layer 12.
Described calcium carbide pond 4 sidewall walls are followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): ceramic refractory layer 4.1(corundum-mullite brick or brown corundum brick), high alumina brick 4.2, refractory fireclay block layer 4.3 and metal shell layer 12; Calcium carbide pond 4 bottom wall are followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): ceramic refractory layer 4.1(corundum-mullite brick or brown corundum brick), self-baked charcoal brick layer 4.4, light carbon brick layer 4.5, high aluminium brick layer 4.6, heat resistance concrete layer 4.7 and metal shell layer 12.
Embodiment of the method:
Raw material weight ratio: coal dust: calcium carbonate is 2.2-3:1, and the first opening for feed raw material particle size is 100-500 μ m, and the second opening for feed raw material particle size is 0.1-100 μ m, and the raw material particle size of the first opening for feed is the second opening for feed raw material particle size 1-10 times.
With above-mentioned raw materials weight 1/2-1/4 dropped in the closed Reaktionsofen by the first opening for feed 5, all the other raw materials are dropped in the closed Reaktionsofen by the second opening for feed 7 and descending (the carrier gas temperature of this partial material is 200-220 along wall
oC is CO gas), the control input speed is 7-10m/s, calcium carbonate is at quench chamber 1 interior high temperature (900-1000
oC) be decomposed into calcium oxide and CO under
2, simultaneously the part coal dust also with quench chamber 1 in CO
2Thermo-negative reaction occuring generate CO, avoid the slag in quench chamber 1 interior generation melting, stops up gas passage.Remainder coal dust and calcium oxide in preheating chamber 1 with from high temperature CO and the CO of vaporizer 2 and reaction chamber 3
2Carrying out descending together behind the contact heat-exchanging enters vaporizer 2(and is preheated by the heat exchange raw material, and CO is lowered the temperature); Oxygen and CO that the oxygen burner 8 of vaporizer 2 sprays into
2Gas mixture (control contains the oxysome volume concentrations greater than 85% in the gas mixture, and, also can add a small amount of rare gas element to reach the purpose that regulates the room temperature) have the flame oxidizing fire to make vaporizer 2 temperature reach 1350-1450 ℃ with the part coal dust to continue preheating material; Remainder coal dust and calcium oxide behind vaporizer 2 continue to drop to reaction chamber 3, (containing the oxysome volume concentrations in the gas mixture is 10-15% with the gas mixture that is sprayed into oxygen and CO by oxygen burner 10 in the part of reaction chamber 3 interior remainder coal dusts, satisfying the condition of nonflame oxidizing fire) nonflame oxidizing reaction (being flameless combustion) produces high temperature raw material further fully is heated to 1700-2000 ℃, tangential angle and downward inclination angle by control oxygen burner 10, and the speed that gas mixture enters reaction chamber 3 is 30-50m/s, make the gas of ejection in reaction chamber 3 interior even mixing, the gas mixture that tangential tilt sprays into also can produce mixing effect to the calcium carbide pond 4 of bottom, the gas that contains solid particulate matter that produces after the vaporizer 3 interior flameless combustions along the speed uplink of wall less than or equal to 6m/s, avoid wall heavy wear, the speed that the fluent meterial that produces flows downward along reaction chamber is less than or equal to 0.2m/s, realize the slag of melting in the surface flow of solid slag, realization is with the purpose of slag anti-slag.The remainder coal dust that is heated to 1700-2000 ℃ of remaining part then falls into calcium carbide pond 4 and at high temperature reacts with calcium oxide and generate calcium carbide and CO, and calcium carbide is by discharge port 11 dischargings, the CO of the CO that the calcium carbide reaction generates and oxygen and coal dust firing generation
2Rise to together quench chamber 1, CO
2Generate CO with the part coal dust reaction in the raw material, all CO all discharge by the air outlet 6 of closed Reaktionsofen 2 and enter lower procedure.Because reaction chamber 3 is the nonflame oxidation reaction process, reaction chamber 3 and calcium carbide pond 4 interior oxygen have almost all participated in the reaction of nonflame oxidizing fire, thereby avoid the carbon in oxygen and the furnace wall carbon brick to react, and have improved the work-ing life of calcium carbide reactor.
0.376 ton of calcium carbide that per 1 ton of feed coal can generate, its purity is 65wt%, synthetic tolerance is 1448 liters/kg.(coal industrial analysis is pressed moisture M 1wt%, volatile matter V 4wt%, and fixed carbon FC 85wt%, ash content A 10wt% calculates)
This novel reactor is more even reasonable than the reaction chamber temperature field distribution of pre-existing reactors, and (see figure 8) has guaranteed the required initial reaction temperature of calcium carbide formation reaction, and speed of reaction and calcium carbide purity all are improved.
Claims (5)
1. calcium carbide reactor, comprise closed Reaktionsofen, quench chamber by top, the vaporizer at middle part, the calcium carbide pond of the reaction chamber of bottom and bottom consists of, described quench chamber top is provided with the air outlet, the first opening for feed, sidewall is established a plurality of the second opening for feeds, establish go into operation igniting assembled nozzle and oxygen burner in the described vaporizer, described reaction chamber is provided with the oxygen burner, bottom, described calcium carbide pond is provided with discharge port, it is characterized in that, along the circumferential direction evenly be provided with a plurality of oxygen burners in the described reaction chamber, described a plurality of oxygen burner radial symmetry are arranged, the horizontal tangential angle is 10-20 °, and the inclination angle is 10-30 ° downwards.
2. calcium carbide reactor as claimed in claim 1 is characterized in that, a plurality of oxygen burners are arranged in the described vaporizer, described a plurality of oxygen burners along the circumferential direction evenly distribute and radially over against, the inclination angle is 10-30 ° downwards.
3. calcium carbide reactor as claimed in claim 1 is characterized in that, the downward inclination angle of described the second opening for feed is 45-60 °, a plurality of second opening for feed in same cross section over against being evenly arranged.
4. such as each described calcium carbide reactor of claim 1-3, it is characterized in that described reaction chamber sidewall wall is followed successively by: silicon nitride-silicon carbide silica brick layer, copper cooling wall layer, filler layer and metal shell layer from the hot side to the huyashi-chuuka (cold chinese-style noodles).
5. such as each described calcium carbide reactor of claim 1-3, it is characterized in that described calcium carbide pond sidewall wall is followed successively by: ceramic refractory layer, high aluminium brick layer, refractory fireclay block layer and metal shell layer from the hot side to the huyashi-chuuka (cold chinese-style noodles); Calcium carbide pond bottom wall is followed successively by from the hot side to the huyashi-chuuka (cold chinese-style noodles): ceramic refractory layer, self-baked charcoal brick layer, light carbon brick layer, high aluminium brick layer, heat resistance concrete layer and metal shell layer.
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| CN2012207262675U CN203238042U (en) | 2012-12-25 | 2012-12-25 | Calcium carbide reactor |
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|---|---|---|---|
| CN2012207262675U CN203238042U (en) | 2012-12-25 | 2012-12-25 | Calcium carbide reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883809A (en) * | 2016-03-30 | 2016-08-24 | 神雾环保技术股份有限公司 | Calcium carbide furnace and method for preparing calcium carbide |
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2012
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883809A (en) * | 2016-03-30 | 2016-08-24 | 神雾环保技术股份有限公司 | Calcium carbide furnace and method for preparing calcium carbide |
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Granted publication date: 20131016 |