CN102162038A - Application of silicon carbide material in metallic zinc powder production furnace - Google Patents
Application of silicon carbide material in metallic zinc powder production furnace Download PDFInfo
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- CN102162038A CN102162038A CN 201110059334 CN201110059334A CN102162038A CN 102162038 A CN102162038 A CN 102162038A CN 201110059334 CN201110059334 CN 201110059334 CN 201110059334 A CN201110059334 A CN 201110059334A CN 102162038 A CN102162038 A CN 102162038A
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Abstract
The invention discloses an application method of a silicon carbide material in a metallic zinc powder production furnace. According to the application method, single components of a silicon carbide tank body are designed and manufactured from the silicon carbide material according to the size of a zinc melting evaporation pond of the metallic zinc powder production furnace, and then the single components are assembled into the tank body as the zinc melting evaporation pond of the metallic zinc powder production furnace to replace a melting evaporation pond built from carbide bricks, thus achieving the aims of enhancing the zinc erosion and penetration resistance and enhancing the heat-insulating property.
Description
One, technical field
The present invention relates to the utilization of carbofrax material in metal zinc production stove, specifically, a kind of exactly common carbofrax material is complementary by the fusing evaporation tank of producing stove with metal zinc be sized to tank body, this tank body is installed in the fusing evaporation tank, reaches the method that strengthens anti-zinc etch infiltration, strengthens the effect of heat-insulating property.Belong to the application technology field of carbofrax material in metallurgical furnace.
Two, background technology
Distillation method is produced metal zinc technology, is metallic zinc is obtained product as raw material by the fusing of metal zinc production stove, distillation, condensation.In the production process, the etch penetrating power of zinc liquid and zinc fume is very strong, and carbofrax material and zinc liquid are the relations of a pair of lance and shield, because the superior performance of its opposing zinc etch is widely used in building the fusing evaporation tank that metal zinc is produced stove.Known method is to build the fusing evaporation tank by laying bricks or stones with silicon carbide brick.This kind method shortcoming is: (1) brickwork joint is many, and it is big to handle the brickwork joint difficulty, and zinc is more serious from brickwork joint etch seepage in the production, causes very large resource waste; (2) heat insulation effect is poor, and heat energy dissipation is big, the energy consumption height; (3) because the ratio of zinc is great, the etch seepage makes the silicon carbide brick displacement of fusing evaporation tank bottom easily, causes furnace life shorter.Therefore, " etch seepage " is the key in a series of problems, uses the silicon carbide tank body to replace the fusing evaporation tank that silicon carbide brick is built by laying bricks or stones, from having solved the anti-etch leakage problems of fusing evaporation tank to a great extent.
Three, summary of the invention
The present invention discloses the application method of a kind of carbofrax material in metal zinc production stove.The size design that carbofrax material is produced stove zinc fusing evaporation tank according to metal zinc is made into the silicon carbide tank body as metal zinc production stove zinc fusing evaporation tank, the fusing evaporation tank that replacement is built with carbide brick reaches the purpose that strengthens anti-zinc etch infiltration, strengthens heat-insulating property.
The present invention is achieved through the following technical solutions:
The first step is to make silicon carbide tank body single-piece.Fig. 1 is the structural representation of silicon carbide tank body single-piece, and 1,2,3 are respectively three single-pieces of tank body, and when aggregate erection, 1 is left side part, and 3 is the right part, and 2 is middleware, all is provided with overlap joint tenon 4 on three single-pieces;
During making by the specification requirement molding of tank body single-piece, carborundum powder and the tackiness agent mixing and stirring of particle diameter at 0.01-1mm, put into the pressure vibration tamping 10-15 minute formation base substrate of mould with 0.6-0.8Mpa, after the base substrate demoulding, dewater below 70 ℃ to the base substrate residual moisture less than 1%, base substrate is put into sintering oven, press the heat-up rate intensification sintering of 15-25 ℃/h, 1450-1650 ℃ of insulation 8-10 hour, the cooling cooling;
Described tackiness agent is the clay of 4-6% of carborundum powder weight and the pulping liquor of 15-20%;
Second step was silicon carbide tank body single-piece to be assembled into the silicon carbide tank body and to be installed on metal zinc to produce in the stove.Fig. 2 is that metal zinc is produced the furnace accretion composition, and it comprises furnace shell 5, furnace bottom LIFT 6, and silicon carbide slurry layer 7, walling 8 is watered in the furnace wall, silicon carbide tank body 9, tank body seam lap 10.During installation, the compacting of furnace bottom LIFT is smooth, shop one deck silicon carbide slurry on LIFT; Each tank body single-piece overlap joint tenon 4 is polished flat and remove surface oxide layer, by left side part, middleware, the order of the right part overlaps, be placed on above the thick silicon carbide slurry layer 7 of 15-20mm, the jointing of tank body seam lap 10 usefulness silicon carbide slurry is bonding, builds the furnace wall with common refractory around the tank body and between the furnace shell, has formed the metal zinc production stove zinc fusing evaporation tank that the silicon carbide tank body is made;
Described silicon carbide slurries are particle diameter at the following carborundum powder of 0.6mm and phosphoric acid by weight 2-2.6: 1 stirs and mixes well formed pasty state slurries.
Advantage of the present invention and positively effect:
1, anti-etch seepage property greatly improves, and reduces zinc etch infiltration and causes the resources loss waste, has improved product recovery rate.
2, the life-span of fusing evaporation tank is determining the work-ing life of whole zinc powder stove, makes the fusing evaporation tank with the silicon carbide tank body, can make body of heater extend to 5-7 month by the 2-3 under the prior art condition month work-ing life.
3, body of heater integral heat insulation performance also greatly strengthens, and heat utilization efficiency improves, and energy consumption reduces, and product stability improves, and unit consumption of energy drops to the 1500-1700 degree by original 1900-2000 degree.
Receive the unimaginable technique effect of knowing clearly.
Four, description of drawings
Fig. 1 is a silicon carbide tank body single-piece synoptic diagram, and 1 is left side part among the figure, the 2nd, and middleware, the 3rd, the right part, the 4th, overlap joint tenon.
Fig. 2 is the mounting structure figure of silicon carbide tank body in metal zinc production stove, and 5 is furnace shells among the figure, the 6th, and the furnace bottom LIFT, the 7th, silicon carbide slurry layer, the 8th, walling is watered in the furnace wall, and the 9th, silicon carbide tank body, the 10th, tank body seam lap.
Five, embodiment
Embodiment 1: make silicon carbide tank body 1 cover by overall size 7000mm * 1120mm * 300mm, be divided into 8 single-pieces.Make the specification requirement molding that the tank body single-piece press Fig. 1, part 3, six middlewares 2 on the right of totally one left side part 1, one.Particle diameter at the carborundum powder of 0.01-1mm and 5% clay that accounts for carborundum powder weight and 15% pulping liquor stirring and evenly mixing, put into the pressure vibration tamping 15 minute formation base substrate of mould with 0.6Mpa, after the base substrate demoulding, dewater below 70 ℃ to the base substrate residual moisture less than 1%, base substrate is put into sintering oven, by the heat-up rate intensification sintering of 25 ℃/h, 1500 ℃ of insulation cooling coolings after 8 hours down.Assemble the tank body single-piece by Fig. 2, tank body overlap joint tenon polishes flat and removes zone of oxidation, and is bonding with the jointing of silicon carbide slurry.
Described silicon carbide slurry is mixed well by weight stirring in 2: 1 at following carborundum powder of 0.6mm and phosphoric acid for particle diameter, forms the pasty state slurries.
This embodiment applies in the zinc powder production, and furnace life reaches June, and producing one ton of zinc powder current consumption is 1550 degree.
Embodiment 2: make silicon carbide tank body 1 cover by overall size 7200mm * 1120mm * 360mm, be divided into 8 single-pieces.Make the specification requirement molding that the tank body single-piece press Fig. 1, part 3, six middlewares 2 on the right of totally one left side part 1, one.Particle diameter at the carborundum powder of 0.01-1mm and 6% clay that accounts for carborundum powder weight and 20% the bonding stirring and evenly mixing of pulping liquor, put into the pressure vibration tamping 10 minute formation base substrate of mould with 0.8Mpa, after the base substrate demoulding, dewater below 70 ℃ to the base substrate residual moisture less than 1%, base substrate is put into sintering oven, by the heat-up rate intensification sintering of 15 ℃/h, 1400 ℃ of insulation cooling coolings after 10 hours down.Assemble the tank body single-piece by Fig. 2, tank body overlap joint tenon polishes flat and removes zone of oxidation, and is bonding with the jointing of silicon carbide slurry.
Described silicon carbide slurries be particle diameter below 0.6mm, carborundum powder and phosphoric acid stirred by weight 2.6: 1 and mix well, and formed the pasty state slurries.
This embodiment applies in the zinc powder production, and furnace life reaches July, and producing one ton of zinc powder current consumption is 1600 degree.
Claims (3)
1. the application of carbofrax material in metal zinc production stove, it is characterized in that: the present invention is achieved through the following technical solutions:
The first step is to make silicon carbide tank body single-piece, it comprises left side part (1), the right part (3), middleware (2), on three single-pieces, all be provided with overlap joint tenon (4), when making silicon carbide tank body single-piece, by the specification requirement molding of tank body single-piece,, put into the pressure vibration tamping 10-15 minute formation base substrate of mould with 0.6-0.8Mpa the carborundum powder and the tackiness agent mixing and stirring of particle diameter at 0.01-1mm, after the base substrate demoulding, dewater below 70 ℃ to the base substrate residual moisture less than 1%, base substrate is put into sintering oven, press the heat-up rate intensification sintering of 15-25 ℃/h, 1450-1650 ℃ of insulation 8-10 hour, cooling was cooled to room temperature;
Second step was silicon carbide tank body single-piece to be assembled into the silicon carbide tank body and to be installed on metal zinc to produce in the stove, it comprises furnace shell (5), furnace bottom LIFT (6), silicon carbide slurry layer (7), walling (8) is watered in the furnace wall, silicon carbide tank body (9), tank body seam lap (10), during installation, the compacting of furnace bottom LIFT is smooth, shop one deck silicon carbide slurry on LIFT, each tank body single-piece overlap joint tenon (4) is polished flat and remove surface oxide layer, by left side part, middleware, the order of the right part overlaps, be placed on above the thick silicon carbide slurry layer (7) of 15-20mm, tank body seam lap (10) is bonding with the jointing of silicon carbide slurry, builds the furnace wall with common refractory around the tank body and between the furnace shell, has formed the metal zinc production stove zinc fusing evaporation tank that the silicon carbide tank body is made.
2. carbofrax material according to claim 1 is produced application in the stove at metal zinc, it is characterized in that: described tackiness agent is the pulping liquor of the 15-20% of the clay of 4-6% of carborundum powder weight and carborundum powder weight.
3. carbofrax material according to claim 1 is produced application in the stove at metal zinc, it is characterized in that: described silicon carbide slurries are particle diameter at the following carborundum powder of 0.6mm and phosphoric acid by weight 2-2.6: formed pasty state slurries are mixed well in 1 stirring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110059334 CN102162038B (en) | 2011-03-14 | 2011-03-14 | Application of silicon carbide material in metallic zinc powder production furnace |
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| CN 201110059334 CN102162038B (en) | 2011-03-14 | 2011-03-14 | Application of silicon carbide material in metallic zinc powder production furnace |
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| CN102162038A true CN102162038A (en) | 2011-08-24 |
| CN102162038B CN102162038B (en) | 2013-01-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011823A (en) * | 2012-10-11 | 2013-04-03 | 丹江口弘源碳化硅有限责任公司 | Ceramic crucible for galvanizing furnace and production method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243167A (en) * | 1998-07-28 | 2000-02-02 | 金云龙 | Method for extracting zinc from zinc-contained waste residue and apparatus thereof |
| CN2602853Y (en) * | 2003-01-24 | 2004-02-11 | 翟国华 | Zinc powder preparation device |
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2011
- 2011-03-14 CN CN 201110059334 patent/CN102162038B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243167A (en) * | 1998-07-28 | 2000-02-02 | 金云龙 | Method for extracting zinc from zinc-contained waste residue and apparatus thereof |
| CN2602853Y (en) * | 2003-01-24 | 2004-02-11 | 翟国华 | Zinc powder preparation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011823A (en) * | 2012-10-11 | 2013-04-03 | 丹江口弘源碳化硅有限责任公司 | Ceramic crucible for galvanizing furnace and production method thereof |
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