CN203255978U - Charging equipment for large silicon carbide melting furnace - Google Patents
Charging equipment for large silicon carbide melting furnace Download PDFInfo
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- CN203255978U CN203255978U CN2013202899751U CN201320289975U CN203255978U CN 203255978 U CN203255978 U CN 203255978U CN 2013202899751 U CN2013202899751 U CN 2013202899751U CN 201320289975 U CN201320289975 U CN 201320289975U CN 203255978 U CN203255978 U CN 203255978U
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Abstract
The utility model provides charging equipment for a large silicon carbide melting furnace. The charging equipment comprises an anthracite feeding bin, a quartz sand feeding bin, a buffering bin, a belt conveyor, a bucket elevator, electronic batching scales, a mixing device, bridge belt conveying units, a chain bucket and a crane. The bridge belt conveying units are parallel to a furnace body of the large silicon carbide melting furnace; the electronic batching scales are respectively arranged in the anthracite feeding bin and the quartz sand feeding bin; the belt conveyor is arranged among the anthracite feeding bin, the quartz sand feeding bin and the mixing device, so that materials are continuously and quantitatively conveyed; anthracite raw materials and quartz sand raw materials are mixed uniformly through the mixing device; a discharging hole of the bucket elevator is formed above a discharging hole of one of the bridge belt conveying units; furnace charges are conveyed to the bridge belt conveying units through the bucket elevator and conveyed to the chain bucket through bridge belt conveyors in the bridge belt conveying units, and the chain bucket is lifted by using the crane, so that all the charging operations are finished.
Description
Technical field
The utility model relates to the silicon carbide smelting technical field, particularly a kind of large-scale sic smelting furnace shove charge equipment.
Background technology
Existing sic smelting furnace comprises electric supply installation, shaft and burner.The alternating-current that electric supply installation is used for high-voltage fence is provided carries out step-down, converts the alternating-current after the step-down to suitable direct current, and direct current is offered burner.Burner is provided with solid graphite electrode and is electrically connected conducting copper with solid graphite electrode, conducting copper offers solid graphite electrode with the direct current that electric supply installation transmits, be provided with in the shaft formed by Graphite Powder 99 and with the resistance-type combustion chamber of the solid graphite electrode electrical contact of burner.
When producing silicon carbide, field worker is used shovel loader carrying quartz sand, hard coal raw material, and then utilize shovel loader with quartz sand raw material, hard coal raw material mixing acquisition furnace charge, then recycling shovel loader is loaded on furnace charge around the resistance-type combustion chamber of sic smelting furnace, be connected with the high temperature that galvanic resistance-type combustion chamber produced with utilization furnace charge is heated, and form silicon carbide.
Yet, along with the installed capacity of sic smelting furnace constantly increases, traditional furnace charge hybrid mode and charging method have restricted the production efficiency of sic smelting furnace, and so that the production cost increase of silicon carbide: for example, shovel loader carrying quartz sand raw material, hard coal raw material and to the quartz sand raw material, hard coal raw material mixing stacking, and then the furnace charge of stacking is transported to body of heater, in this process, shovel loader is in the production scene to-and-fro movement, not only increased charge time, also wasted the energy, then so that the production efficiency of sic smelting furnace reduces and increase production cost; In addition, adopt shovel loader to quartz sand raw material, hard coal raw material mixing stacking, can not guarantee the homogeneity of furnace charge, cause the quality of the silicon carbide of smelting uneven.
Summary of the invention
In view of this, be necessary to provide a kind of and can improve the production efficiency of large-scale sic smelting furnace, the cost that reduces production silicon carbide and the large-scale sic smelting furnace shove charge equipment of the uniform quality that the silicon carbide that is smelted in assurance.
A kind of large-scale sic smelting furnace shove charge equipment, this large-scale sic smelting furnace shove charge equipment is arranged on a side of large-scale sic smelting furnace, be used for continuous with the hard coal raw material be delivered to large-scale sic smelting furnace after the quartz sand raw material mixes, this large-scale sic smelting furnace shove charge equipment comprises hard coal feed bin, quartz sand feed bin, buffer bin, rotary conveyor, chapelet, electronic batching scale, blending device, crane span structure Belt Conveying unit, chain bucket, overhead traveling crane.The shaft of crane span structure Belt Conveying unit and large-scale sic smelting furnace be arranged in parallel, crane span structure Belt Conveying unit comprises at least two crane span structure rotary conveyors, one end of one of them crane span structure rotary conveyor is relative with an end of another crane span structure rotary conveyor, two crane span structure rotary conveyors like this are located on the same line, buffer bin and chain bucket are arranged on the discharge port below of crane span structure rotary conveyor, and chain bucket is arranged on the below of buffer bin; Hard coal feed bin, quartz sand feed bin, rotary conveyor, chapelet, electronic batching scale and blending device are arranged on a side of crane span structure rotary conveyor, and the crane span structure rotary conveyor is between the shaft and hard coal feed bin, quartz sand feed bin, rotary conveyor, chapelet, electronic batching scale and blending device of large-scale sic smelting furnace; Be provided with electronic batching scale in hard coal feed bin, the quartz sand feed bin, between hard coal feed bin, quartz sand feed bin and the blending device rotary conveyor be set also, blending device is used for hard coal raw material and quartz sand raw material are evenly mixed to obtain furnace charge; Between blending device and the chapelet rotary conveyor is set, the discharge port of chapelet is arranged on the top of crane span structure Belt Conveying unit, chapelet is used for furnace charge is submitted crane span structure Belt Conveying unit, and the crane span structure rotary conveyor in the crane span structure Belt Conveying unit is transported to furnace charge in the buffer bin; Overhead traveling crane is arranged on the shaft top of large-scale sic smelting furnace, and overhead traveling crane can move along the bearing of trend of the shaft of large-scale sic smelting furnace, and overhead traveling crane is used for transporting chain bucket, in large-scale sic smelting furnace that the furnace charge in the chain bucket is packed into.
Preferably, the discharge port of chapelet is between two crane span structure rotary conveyors, chapelet comprises the first discharge port, the second discharge port, the 3rd discharge port, discharge port selecting arrangement, the first discharge port points to the furnace charge transmission plane of one of them crane span structure rotary conveyor furnace charge is flowed to this crane span structure rotary conveyor, the second discharge port vertically points to buffer bin, and the 3rd discharge port points to the furnace charge transmission plane of another crane span structure rotary conveyor furnace charge is flowed to this crane span structure rotary conveyor; The discharge port selecting arrangement is used for unlatching and the shutoff operation of control the first discharge port, the second discharge port, the 3rd discharge port.
Preferably, buffer bin comprises that furnace charge receives storehouse, the first discharge port, the second discharge port, discharge port selecting arrangement, the first discharge port, the second discharge port are arranged on furnace charge and receive the below, storehouse, be delivered to corresponding chain bucket with the furnace charge that furnace charge is received in the storehouse, the selection operation of discharge port selecting arrangement with the operation response personnel, discharge port corresponding to control opened and closed.
Preferably, large-scale sic smelting furnace shove charge equipment also comprises control device, and buffer bin also comprises the furnace charge amount detecting device, and the furnace charge amount detecting device receives the furnace charge amount in storehouse for detection of furnace charge, and produces corresponding furnace charge value; Control device is connected with the furnace charge amount detecting device.
Preferably, large-scale sic smelting furnace shove charge equipment also comprises control device; The hard coal feed bin comprises bracing frame, is arranged on weighing silo and conveying feed bin on the bracing frame, and electronic batching scale is relative with weighing silo fixing, and the conveying feed bin is positioned at the below of weighing silo; The quartz sand feed bin comprises bracing frame, is arranged on weighing silo and conveying feed bin on the bracing frame, and electronic batching scale is relative with weighing silo fixing, and the conveying feed bin is positioned at the below of weighing silo; Electronic batching scale, weighing silo with in hard coal feed bin, the quartz sand feed bin that control device is corresponding are connected.
Above-mentioned large-scale sic smelting furnace shove charge equipment, the shaft of crane span structure Belt Conveying unit and large-scale sic smelting furnace is be arranged in parallel, the hard coal feed bin, the quartz sand feed bin, rotary conveyor, chapelet, electronic batching scale and blending device are arranged on a side of crane span structure rotary conveyor, at the hard coal feed bin, in the quartz sand feed bin electronic batching scale is set, the hard coal feed bin, rotary conveyor also is set between quartz sand feed bin and the blending device, to realize the conveying of material continuous and quantitative, and by blending device hard coal raw material and quartz sand raw material are evenly mixed, then guarantee to smelt the uniform quality of the silicon carbide that; Between blending device and the chapelet rotary conveyor is set, the discharge port of chapelet is arranged on the discharge port top of one of them crane span structure rotary conveyor, chapelet is used for furnace charge is submitted crane span structure Belt Conveying unit, crane span structure rotary conveyor in the crane span structure Belt Conveying unit is transported to chain bucket with furnace charge, utilize overhead traveling crane to mention chain bucket and chain bucket is transported to large-scale sic smelting furnace and expect shove charge to finish each one, so can reduce charge time, reduce energy dissipation, so improved the production efficiency of large-scale sic smelting furnace, reduce the cost of producing silicon carbide.
Description of drawings
Fig. 1 is the structural representation of the large-scale sic smelting furnace shove charge equipment of a preferred embodiments.
Fig. 2 be among Fig. 1 A--A to cross-sectional view.
Fig. 3 be among Fig. 1 B--B to cross-sectional view.
Fig. 4 be among Fig. 1 C--C to cross-sectional view.
Fig. 5 is the cut-away section structural representation of chapelet among Fig. 1.
Among the figure: large-scale sic smelting furnace shove charge equipment 100, hard coal feed bin 101, bracing frame 1011, weighing silo 1012, conveying feed bin 1013, quartz sand feed bin 102, bracing frame 1021, weighing silo 1022, conveying feed bin 1023, buffer bin 103, furnace charge receives storehouse 1031, the first discharge port 1032, the second discharge port 1033, discharge port selecting arrangement 1034, furnace charge amount detecting device 1035, rotary conveyor 104, chapelet 105, the first discharge port 1051, the second discharge port 1052, the 3rd discharge port 1053, discharge port selecting arrangement 1054, electronic batching scale 106, blending device 107, crane span structure Belt Conveying unit 108, crane span structure rotary conveyor 1081, chain bucket 109, overhead traveling crane 120, control device 121, large-scale sic smelting furnace 20.
Embodiment
Please referring to Fig. 1 to Fig. 3, large-scale sic smelting furnace shove charge equipment 100, this large-scale sic smelting furnace shove charge equipment 100 is arranged on a side of large-scale sic smelting furnace 20, be used for continuous in the hard coal raw material, the quartz sand raw material is delivered in the large-scale sic smelting furnace after mixing, and this large-scale sic smelting furnace shove charge equipment 100 comprises hard coal feed bin 101, quartz sand feed bin 102, buffer bin 103, rotary conveyor 104, chapelet 105, electronic batching scale 106, blending device 107, crane span structure Belt Conveying unit 108, chain bucket 109, overhead traveling crane 120.
Crane span structure Belt Conveying unit 108 be arranged in parallel with the shaft of large-scale sic smelting furnace 20, crane span structure Belt Conveying unit 108 comprises at least two crane span structure rotary conveyors 1081, one end of one of them crane span structure rotary conveyor 1081 is relative with an end of another crane span structure rotary conveyor 1081, two crane span structure rotary conveyors 1081 like this are located on the same line, buffer bin 103 and chain bucket 109 are arranged on the below of crane span structure rotary conveyor 1081, and chain bucket 109 is arranged on the below of buffer bin 103.Wherein, the quantity of crane span structure rotary conveyor 1081 is determined according to the shaft length of large-scale sic smelting furnace 20.
Hard coal feed bin 101, quartz sand feed bin 102, rotary conveyor 104, chapelet 105, electronic batching scale 106 and blending device 107 are arranged on a side of crane span structure rotary conveyor 1081, and crane span structure rotary conveyor 1081 is between the shaft and hard coal feed bin 101, quartz sand feed bin 102, rotary conveyor 104, chapelet 105, electronic batching scale 106 and blending device 107 of large-scale sic smelting furnace 20; Be provided with electronic batching scale 106 in hard coal feed bin 101, the quartz sand feed bin 102, between hard coal feed bin 101, quartz sand feed bin 102 and the blending device 107 rotary conveyor 104 is set also, blending device 107 is used for hard coal raw material and quartz sand raw material are evenly mixed to obtain furnace charge.Blending device 107 can be selected the whipping device product with the happy mechanical company limited of Neil of Qingdao section.
Between blending device 107 and the chapelet 105 rotary conveyor 104 is set, the discharge port of chapelet 105 is arranged on the top of crane span structure Belt Conveying unit 108, chapelet 105 is used for furnace charge is submitted crane span structure Belt Conveying unit 108, and the crane span structure rotary conveyor 1081 in the crane span structure Belt Conveying unit 108 is transported to furnace charge in the buffer bin 103; Overhead traveling crane 120 is arranged on the shaft top of large-scale sic smelting furnace 20, and overhead traveling crane 120 can move along the bearing of trend of the shaft of large-scale sic smelting furnace 20, overhead traveling crane 20 is used for transporting chain bucket 109, and the furnace charge in the chain bucket 109 is packed in the large-scale sic smelting furnace 20.
In the present embodiment, the discharge port of chapelet 105 is between two crane span structure rotary conveyors 1081, bucket lifting 105 machines comprise the first discharge port 1051, the second discharge port 1052, the 3rd discharge port 1053, discharge port selecting arrangement 1054, the first discharge port 1051 points to the furnace charge transmission plane of one of them crane span structure rotary conveyor 1081 furnace charge is flowed to this crane span structure rotary conveyor 1081, the second discharge port 1052 vertical buffer bin 103, the three discharge ports 1053 that point to point to the furnace charge transmission plane of another crane span structure rotary conveyor 1081 furnace charge is flowed to this crane span structure rotary conveyor 1081; Discharge port selecting arrangement 1054 is used for unlatching and the shutoff operation of control the first discharge port 1051, the second discharge port 1052, the 3rd discharge port 1053.For example, crane span structure Belt Conveying unit 108 comprises five crane span structure rotary conveyors 1081, the discharge port of chapelet 105 is arranged on second crane span structure rotary conveyor 1081 and the 3rd crane span structure rotary conveyor 1081, below between first crane span structure rotary conveyor 1081 and second the crane span structure rotary conveyor 1081 arranges buffer bin 103 from top to bottom, chain bucket 109, between the 3rd crane span structure rotary conveyor 1081 and the 4th the crane span structure the rotary conveyor 1081 and below between the 4th crane span structure rotary conveyor 1081 and the 5th the crane span structure rotary conveyor 1081 arranges buffer bin 103 from top to bottom, chain bucket 109, one end of second crane span structure rotary conveyor 1081 close first crane span structure rotary conveyor 1081 is provided with the furnace charge guide arrangement, can select furnace charge is delivered directly in the buffer bin 103 of second crane span structure rotary conveyor 1081 below by the furnace charge guide arrangement, perhaps furnace charge is delivered directly on first crane span structure rotary conveyor 1081.
Please be simultaneously referring to Fig. 4 to Fig. 5, buffer bin 103 comprises that furnace charge receives storehouse 1031, the first discharge port 1032, the second discharge port 1033, discharge port selecting arrangement 1034, the first discharge port 1032, the second discharge port 1033 are arranged on furnace charge and receive 1031 belows, storehouse, be delivered to corresponding chain bucket 109 with the furnace charge that furnace charge is received in the storehouse 1031, discharge port selecting arrangement 1034 usefulness and operation response personnel's selection operation, discharge port corresponding to control opened and closed.
Further, large-scale sic smelting furnace shove charge equipment 100 also comprises control device 121, buffer bin 103 also comprises furnace charge amount detecting device 1035, and furnace charge amount detecting device 1035 receives the furnace charge amount in storehouse 1031 for detection of furnace charge, and produces corresponding furnace charge value; Control device 1221 is used for receiving the furnace charge value of furnace charge amount detecting device 1035 generations and the identification information of corresponding buffer bin, and judging the furnace charge value when corresponding with the furnace charge benchmark value that prestores, the furnace charge guide arrangement work that discharge port selecting arrangement 1054 work of control chapelet 105 and control are installed in crane span structure rotary conveyor 1081 ends, after can guaranteeing that so a buffer bin 103 is filled furnace charge therein, timing stops to carry furnace charge to corresponding with it crane span structure rotary conveyor 1081.Wherein, control device 121 has data processing function, and according to the component working of processing in the large-scale sic smelting furnace shove charge of the Data Control equipment 100 that obtains, for example control device 121 can be computer.
Further, hard coal feed bin 101 comprises bracing frame 1011, is arranged on weighing silo 1012 and conveying feed bin 1013 on the bracing frame 1011, and electronic batching scale 106 is relative fixing with weighing silo 1012, and conveying feed bin 1013 is positioned at the below of weighing silo 1012; Quartz sand feed bin 102 comprises bracing frame 1021, is arranged on weighing silo 1022 and conveying feed bin 1023 on the bracing frame 1021, and electronic batching scale 106 is relative fixing with weighing silo 1022, and conveying feed bin 1023 is positioned at the below of weighing silo 1022; Control device 121 correspondences with hard coal feed bin 101, electronic batching scale 106 in the quartz sand feed bin 102, weighing silo 1012 connects, control device 121 is used for receiving the gravimetric value that hard coal feed bin 101 electronic batching scales 106 produce, and when the gravimetric value of judging electronic batching scale 106 generations is corresponding with the first default base weight value, the discharging door of the weighing silo 1012 of control hard coal feed bin 101 is closed, when the gravimetric value of electronic batching scale 106 generations of judging hard coal feed bin 101 was corresponding with the second default base weight value, the discharging door of the weighing silo 1012 of control hard coal feed bin 101 was opened; Control device 121 also is used for receiving the gravimetric value that quartz sand feed bin 102 electronic batching scales 106 produce, and when the gravimetric value of judging electronic batching scale 106 generations is corresponding with the 3rd default base weight value, the discharging door of the weighing silo 1022 of control quartz sand feed bin 102 is closed, when the gravimetric value of electronic batching scale 106 generations of judging quartz sand feed bin 102 was corresponding with the 4th default base weight value, the discharging door of the weighing silo of control quartz sand feed bin 102 was opened; Can guarantee that so the hard coal raw material that the standard proportional quantity is provided that hard coal feed bin 101 and quartz sand feed bin 102 can be continuous, quartz sand raw material are to blending device 107.
Claims (5)
1. one kind large-scale sic smelting furnace shove charge equipment, this large-scale sic smelting furnace shove charge equipment is arranged on a side of large-scale sic smelting furnace, be used for hard coal is pulverized, and continuously with the hard coal pulverized be delivered in the large-scale sic smelting furnace after the quartz sand raw material mixes, it is characterized in that: this large-scale sic smelting furnace shove charge equipment comprises hard coal feed bin, quartz sand feed bin, buffer bin, rotary conveyor, chapelet, electronic batching scale, blending device, crane span structure Belt Conveying unit, chain bucket, overhead traveling crane;
The shaft of crane span structure Belt Conveying unit and large-scale sic smelting furnace be arranged in parallel, crane span structure Belt Conveying unit comprises at least two crane span structure rotary conveyors, one end of one of them crane span structure rotary conveyor is relative with an end of another crane span structure rotary conveyor, two crane span structure rotary conveyors like this are located on the same line, buffer bin and chain bucket are arranged on the discharge port below of crane span structure rotary conveyor, and chain bucket is arranged on the below of buffer bin;
Hard coal feed bin, quartz sand feed bin, rotary conveyor, chapelet, electronic batching scale and blending device are arranged on a side of crane span structure rotary conveyor, and the crane span structure rotary conveyor is between the shaft and hard coal feed bin, quartz sand feed bin, rotary conveyor, chapelet, electronic batching scale and blending device of large-scale sic smelting furnace; Be provided with electronic batching scale in hard coal feed bin, the quartz sand feed bin, between hard coal feed bin, quartz sand feed bin and the blending device rotary conveyor be set also, blending device is used for hard coal raw material and quartz sand raw material are evenly mixed to obtain furnace charge;
Between blending device and the chapelet rotary conveyor is set, the discharge port of chapelet is arranged on the top of crane span structure Belt Conveying unit, chapelet is used for furnace charge is submitted crane span structure Belt Conveying unit, and the crane span structure rotary conveyor in the crane span structure Belt Conveying unit is transported to furnace charge in the buffer bin; Overhead traveling crane is arranged on the shaft top of large-scale sic smelting furnace, and overhead traveling crane can move along the bearing of trend of the shaft of large-scale sic smelting furnace, and overhead traveling crane is used for transporting chain bucket, in large-scale sic smelting furnace that the furnace charge in the chain bucket is packed into.
2. large-scale sic smelting furnace shove charge equipment according to claim 1, it is characterized in that: the discharge port of chapelet is between two crane span structure rotary conveyors, chapelet comprises the first discharge port, the second discharge port, the 3rd discharge port, the discharge port selecting arrangement, the first discharge port points to the furnace charge transmission plane of one of them crane span structure rotary conveyor furnace charge is flowed to this crane span structure rotary conveyor, the second discharge port vertically points to buffer bin, and the 3rd discharge port points to the furnace charge transmission plane of another crane span structure rotary conveyor furnace charge is flowed to this crane span structure rotary conveyor; The discharge port selecting arrangement is controlled unlatching and the shutoff operation of the first discharge port, the second discharge port, the 3rd discharge port.
3. large-scale sic smelting furnace shove charge equipment according to claim 1, it is characterized in that: buffer bin comprises that furnace charge receives storehouse, the first discharge port, the second discharge port, discharge port selecting arrangement, the first discharge port, the second discharge port are arranged on furnace charge and receive the below, storehouse, be delivered to corresponding chain bucket with the furnace charge that furnace charge is received in the storehouse, discharge port selecting arrangement operation response personnel's selection operation, discharge port corresponding to control opened and closed.
4. large-scale sic smelting furnace shove charge equipment according to claim 3, it is characterized in that: large-scale sic smelting furnace shove charge equipment also comprises control device, buffer bin also comprises the furnace charge amount detecting device, the furnace charge amount detecting device detects the furnace charge amount that furnace charge receives the storehouse, and produces corresponding furnace charge value; Control device and receive furnace charge value that the furnace charge amount detecting device produces and the identification information of corresponding buffer bin, and be connected with the furnace charge amount detecting device judging the furnace charge value.
5. large-scale sic smelting furnace shove charge equipment according to claim 1, it is characterized in that: large-scale sic smelting furnace shove charge equipment also comprises control device; The hard coal feed bin comprises bracing frame, is arranged on weighing silo and conveying feed bin on the bracing frame, and electronic batching scale is relative with weighing silo fixing, and the conveying feed bin is positioned at the below of weighing silo; The quartz sand feed bin comprises bracing frame, is arranged on weighing silo and conveying feed bin on the bracing frame, and electronic batching scale is relative with weighing silo fixing, and the conveying feed bin is positioned at the below of weighing silo; Electronic batching scale, weighing silo with in hard coal feed bin, the quartz sand feed bin that control device is corresponding are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202899751U CN203255978U (en) | 2013-05-24 | 2013-05-24 | Charging equipment for large silicon carbide melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202899751U CN203255978U (en) | 2013-05-24 | 2013-05-24 | Charging equipment for large silicon carbide melting furnace |
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| CN203255978U true CN203255978U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202899751U Expired - Fee Related CN203255978U (en) | 2013-05-24 | 2013-05-24 | Charging equipment for large silicon carbide melting furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253673A (en) * | 2013-05-24 | 2013-08-21 | 宁夏天净冶金有限公司 | Charging equipment and charging method of large-scale silicon carbide smelting furnace |
| CN104003391A (en) * | 2014-06-10 | 2014-08-27 | 鸡东宝鑫碳化硅有限公司 | Totally-closed mobile silicon carbide smelting furnace |
-
2013
- 2013-05-24 CN CN2013202899751U patent/CN203255978U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253673A (en) * | 2013-05-24 | 2013-08-21 | 宁夏天净冶金有限公司 | Charging equipment and charging method of large-scale silicon carbide smelting furnace |
| CN104003391A (en) * | 2014-06-10 | 2014-08-27 | 鸡东宝鑫碳化硅有限公司 | Totally-closed mobile silicon carbide smelting furnace |
| CN104003391B (en) * | 2014-06-10 | 2016-01-27 | 鸡东宝鑫碳化硅有限公司 | A kind of totally-enclosed portable silicon carbide smelting stove |
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