CN117404912A - Calcining device for magnesium-calcium refractory material - Google Patents
Calcining device for magnesium-calcium refractory material Download PDFInfo
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- CN117404912A CN117404912A CN202310816230.4A CN202310816230A CN117404912A CN 117404912 A CN117404912 A CN 117404912A CN 202310816230 A CN202310816230 A CN 202310816230A CN 117404912 A CN117404912 A CN 117404912A
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- Prior art keywords
- calcining
- roller
- cabin
- rod
- calcination
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- 238000001354 calcination Methods 0.000 title claims abstract description 265
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 239000011819 refractory material Substances 0.000 title abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 65
- 239000000463 material Substances 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 12
- 239000012535 impurity Substances 0.000 description 22
- 108010066278 cabin-4 Proteins 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000010009 beating Methods 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention relates to the technical field of heat treatment, in particular to a magnesium-calcium refractory material calcining device, which comprises a hot furnace, wherein a feeding hole is formed in the front side of the hot furnace, a plurality of calcining rollers are connected in a right-left direction in a calcining cabin, the calcining rollers are sequentially distributed along the front-back direction of the calcining cabin, the right and left ends of the calcining rollers penetrate through the right and left sides of the calcining cabin and are connected through bearings, calcining rails are arranged on the calcining rollers, the ends of two adjacent calcining rollers are connected through a pinion transmission, a large gear positioned at the outer side of the calcining cabin is fixed at one end of the calcining roller at the last side, heat is fed back into an upper cavity through a gap, and the calcining is carried out on a rod-shaped material placed in the upper cavity, air can be continuously fed into the lower cavity through air flow when the air feeding nozzle at the bottom of a group of air feeding nozzles, the air flow in the lower cavity is assisted, the heat in the lower cavity is fully acted on the rod-shaped material above the gap through the gap, the action area is increased, and the temperature is increased, and the calcining efficiency is increased.
Description
Technical Field
The invention relates to the technical field of heat treatment, in particular to a device for calcining a magnesium-calcium refractory material.
Background
The magnesium-calcium refractory material not only does not pollute molten steel, but also has the function of purifying the molten steel, and simultaneously has good high temperature resistance, slag resistance, thermal shock resistance and stability under high temperature vacuum, is a high-quality alkaline refractory material, is the most suitable refractory material for smelting clean steel, and is widely valued by iron and steel enterprises. The utility model discloses a calcination device is used in the in-process that prepares magnesium calcia refractory material, and calcination equipment that uses is high temperature converter or hot stove, and impurity composition in order to make the material get into before the furnace body is filtered to improve calcination quality, chinese patent application number 202122138473.6 discloses a magnesium calcia refractory material preparation is with calcination device, backup pad and stopper, the intermediate position of backup pad is fixed with the calcination storehouse, and calcines the end side of storehouse and be provided with the bracing piece to the pillar is installed to the end side of bracing piece, the motor is installed to the internal position of machine case, and the end side of motor is connected with the shaft coupling, the stopper is installed in the end side position of calcination storehouse, and the intermediate position of stopper is provided with the draw-in groove to the filter screen is installed to the intermediate position of draw-in groove.
The method can only be applied to granular materials by arranging a filter screen at a feed inlet to intercept and filter impurities in the materials during feeding, the common calcined materials in the calcining process are rod-shaped, for example, steel ingots doped with magnesium and calcium are obtained through heat treatment, the filter screen is adopted to intercept and filter the impurities during feeding into a furnace, firstly, the steel ingots are completely intercepted, the feeding is blocked, the filter screen is removed, and when the steel ingots are directly fed into the furnace for calcining, all parts of the steel ingots cannot be heated uniformly in a shorter time, so that the calcining efficiency is affected.
Disclosure of Invention
The invention aims to solve the technical problem that a calcining cabin is arranged in a hot furnace, and the calcining cabin can carry out comprehensive high-temperature calcining after effectively filtering impurities on the surface of a rod-shaped steel ingot, so that the calcining efficiency is improved.
The technical proposal of the invention is that the magnesium-calcium refractory calcining device comprises a hot furnace, wherein the front side of the hot furnace is provided with a feed port, a sealing door is hinged on the feed port, a calcining cabin is arranged in the hot furnace, calcining rollers are switched in the calcining cabin in the left-right direction, the calcining rollers are in a plurality of positions and are distributed in sequence along the front-back direction of the calcining cabin, the left and right ends of the calcining rollers are communicated to the left and right sides of the calcining cabin and are switched through bearings, calcining rails are arranged on the calcining rollers, a gap is reserved between the calcining rails between two adjacent calcining rollers, the upper and lower ends of the calcining cabin are open and communicated, the upper end of the gap is communicated with the upper end of the calcining cabin, the lower end of the gap is communicated with the lower end of the calcining cabin, the ends of the two adjacent calcining rollers are in transmission connection through a pinion, one end of the calcining roller at the last side is fixedly provided with a large gear positioned outside the calcining cabin, the rear wall of an inner cavity of the hot furnace is provided with a rack in the vertical direction, the large gear is meshed with the rack, the back of the calcining cabin is fixed with a screw seat, the rear side of the inner cavity of the heating furnace is provided with a vertical upward screw rod through a bearing, the top end of the screw rod is communicated with the upper part of the heating furnace and is provided with a belt wheel, the screw seat is matched with the screw rod, the screw seat drives the calcining cabin to lift when the screw rod rotates, a large gear is meshed with a rack to drive a calcining roller at the rearmost side to synchronously rotate when the calcining cabin lifts, all calcining rollers synchronously rotate in the calcining cabin by utilizing the meshing transmission of the pinion gears, the right wall of the inner cavity of the heating furnace is provided with an air supply mechanism, the air supply mechanism is provided with a plurality of groups of air supply spray heads from top to bottom along the vertical direction, the right side of the calcining cabin is provided with an air inlet, the air inlet sequentially passes through each group of air supply spray heads when the calcining cabin lifts, the calcining cabin sequentially enters the air through the air inlet when the calcining cabin lifts, and the air inlet sequentially acts on each calcining roller synchronously rotated from the right end direction, and the mixture is guided by the calcined rail and then passes through the gap to be discharged downwards;
the bottom of the inner cavity of the heating furnace is provided with a heating rod corresponding to the descending limit position of the calcining cabin, the heating rod is covered below the calcining roller by utilizing the bottom space after the calcining cabin descends, and a drop space is formed between the heating rod and the bottom surface of the inner cavity of the heating furnace;
the heating rod is a multi-section bent rod, and a first blanking gap is reserved between two adjacent bent sections of the heating rod.
As a further preferable mode, the air supply mechanism is an air collection cover, the outer end of the air collection cover is connected with a third-party air supply system, and the plurality of groups of air supply spray heads are jointly installed on the same air collection cover.
As a further preferable mode, the bottom of the heating furnace is provided with a blanking port, the bottom surface of the inner cavity of the heating furnace is inclined downwards towards the direction of the blanking port, and the blanking port is positioned at the bottom of the fall space and the heating rod.
As a further preferable mode, the calcining roller is a solid cylindrical roller, a plurality of calcining rails are arranged on the same calcining roller, the calcining rollers are surrounded by the plurality of calcining rails in a ring-shaped array mode, the calcining rails are protruded on the calcining roller, the calcining rails are wavy, and two ends of the calcining rails extend to two ends of the calcining roller respectively.
As a further preferable mode, the protection plate is fixed in the calcining compartment, all the calcining rollers pass through and pass through the protection plate when penetrating through the side part of the calcining compartment, so that the pinion on the same side end of all the calcining rollers is covered in the protection plate, and meanwhile, the inner cavities of the pinion and the calcining compartment are mutually separated by the protection plate.
As a further preferred option, the top of the furnace is provided with a transmission device which is in transmission connection with the belt wheel at the top end of the screw rod in a belt transmission mode.
As a further preferred option, the air inlet on the right side of the calcining compartment is provided with a guide plate, the guide plate is positioned on the inner side of the right end of the calcining compartment, the guide plate is positioned above the calcining roller, the front end of the guide plate extends to the front side of the inner cavity wall of the calcining compartment, the rear end of the guide plate extends to the rear side of the inner cavity wall of the calcining compartment, and one side of the guide plate is inclined upwards and fixed on the upper edge of the air inlet, so that the other side of the guide plate is inclined downwards towards the calcining roller.
As a further preferable mode, the calcining roller is arranged in the middle of the calcining cabin, the calcining cabin is divided into an upper cavity and a lower cavity through the calcining roller, the upper cavity is used for storing materials to be calcined, a heat transfer rod is arranged in the lower cavity, a gap is reserved between the heat transfer rod and the calcining roller above the heat transfer rod, the heat transfer rod is a multi-section bending rod with the shape identical to that of the heating rod, a second blanking gap with the shape identical to that of the first blanking gap is also formed between two adjacent bending sections of the heat transfer rod, the heating rod is a heating rod, the heat transfer rod is a heat conducting rod, the electric receiving end of the heating rod passes through the bottom end of the heating furnace and is connected with a third-party power supply system, the heat transfer rod is directly fixed on the inner wall of the lower cavity through pins, when the heat transfer rod covers the lower cavity along with the calcining cabin to the limit position, a limiting seat is arranged at the bottom of the heat transfer rod, the heat transfer rod is a heat conducting block, when the heat transfer rod is limited by the heat transfer seat is generated by the upper position of the limiting rod, and heat transfer is limited by the heat transfer rod.
Compared with the prior art, the invention has the advantages that the lifting function is arranged in the furnace, the calcining cabin is arranged in the hot furnace through the lifting function, the heating rod is arranged at the bottom of the furnace chamber, when in use, the calcining cabin is lowered to the bottom of the hot furnace through the rotating action of the screw rod, then the rod-shaped material to be calcined is placed in the upper cavity of the calcining cabin, the calcining cabin is raised again with the rod-shaped material through the rotating action of the screw rod, the calcining cabin is raised synchronously with the rack engaged with the large gear in the raising process, the large gear rotates with the rearmost calcining roller, the calcining rollers rotate with all the calcining rollers under the mutual engagement action between the small gears, as each calcining roller is provided with the calcining rail, the rod-shaped material is placed on the calcining roller along the length direction of the calcining roller, when the calcining roller rotates, the rod-shaped material is knocked by the calcining rail, the beating action can cause the rod-shaped materials to jump in the calcining cabin, and enable the impurities attached to the surface to shake downwards in the beating process, the shaked impurities pass through gaps between two adjacent calcining rollers to drop downwards, the calcining cabin is driven to frequently lift by frequent forward and reverse rotation of the screw rod, and under the frequent lifting action, each rod-shaped material in the calcining cabin is made to jump in a fall space through the gear transmission mode, and finally discharged outwards through a blanking port at the bottom of the heating furnace, the calcining cabin continuously blows air into the calcining cabin through an air inlet in the right side direction in the lifting process, when the blowing air enters the calcining cabin from the right side direction, the impurities falling onto the calcining rail from the materials are blown downwards along the calcining rail between the two adjacent calcining rollers from the right end to the left end in the beating process, avoiding impurity residue. Because the air supply spray heads are a plurality of groups, and the plurality of groups of air supply spray heads are distributed downwards from top to bottom, the problem that impurities falling off when the calcining compartment is lifted to a certain position with materials are solved when the calcining compartment is lifted to a certain group of air supply spray heads is solved, and the plurality of groups of air supply spray heads are arranged, so that the calcining compartment lifting action is satisfied, and the impurities fall off better. The heating rod is electrified to generate heat, the heat passes through the gap and is fed back to the upper cavity, the rod-shaped materials placed in the upper cavity are calcined, the air supply spray heads can continue to supply air at the moment, air flow acts on the lower cavity when the air supply spray heads at the bottommost part supply air, the heat in the lower cavity is assisted to fully act on the rod-shaped materials above the gap through the gap, the acting area is increased, and meanwhile, the temperature is increased, so that the calcining efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the present invention from FIG. 1 with a sealing door removed;
FIG. 3 is a schematic view of the present invention from the bottom view of FIG. 2;
FIG. 4 is a schematic view of the front view of the structure of FIG. 1 according to the present invention;
FIG. 5 is a schematic view of the invention in section at a rear position of the furnace;
FIG. 6 is a schematic view of the present invention from another perspective, taken from FIG. 5;
FIG. 7 is a schematic view of the invention with the front side of the nacelle broken away and the fender removed;
fig. 8 is a schematic view of the heat transfer rod of the present invention falling on the heating rod to effect heat transfer.
In the figure: 1. a heating furnace; 2. a feed port; 3. sealing the door; 4. calcining the cabin; 41. an upper chamber; 42. a lower cavity; 5. calcining the roller; 6. calcining the rail; 7. a slit; 8. a pinion gear; 9. a large gear; 10. a rack; 11. a screw seat; 12. a screw; 13. a belt wheel; 14. an air supply mechanism; 15. blowing nozzle; 16. an air inlet; 17. a heating rod; 18. a drop space; 19. a first blanking gap; 20. a blanking port; 21. a protection plate; 22. a deflector; 23. a heat transfer rod; 24. a second blanking gap; 25. and a limiting seat.
Detailed Description
The foregoing and other embodiments and advantages of the invention will be apparent from the following, more complete, description of the invention, taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention.
In one embodiment, as shown in fig. 1-8.
The magnesium-calcium refractory calcining device provided by the embodiment comprises a hot furnace 1, a feed port 2 is arranged at the front side of the hot furnace 1, a sealing door 3 is hinged on the feed port 2, a calcining cabin 4 is arranged in the hot furnace 1, calcining rollers 5 are switched in the calcining cabin 4 in the left-right direction, the calcining rollers 5 are a plurality of parts and are distributed in sequence along the front-back direction of the calcining cabin 4, the left-right ends of the calcining rollers 5 are communicated to the left side and the right side of the calcining cabin 4 and are switched through bearings, calcining rails 6 are arranged on the calcining rollers 5, a gap 7 is reserved between the calcining rails 6 between two adjacent calcining rollers 5, the upper end of the gap 7 is communicated with the upper end of the calcining cabin 4, the lower end of the gap 7 is communicated with the lower end of the calcining cabin 4, the ends of the two adjacent calcining rollers 5 are in transmission connection through a pinion 8, one end of the calcining roller 5 at the last side is fixed with a large gear 9 positioned outside the calcining cabin 4, the rear wall of the inner cavity of the heat furnace 1 is provided with a rack 10 along the vertical direction, a large gear 9 is meshed with the rack 10, the back of the calcining compartment 4 is fixedly provided with a thread seat 11, the rear side of the inner cavity of the heat furnace 1 is provided with a vertical upward screw rod 12 through a bearing, the top end of the screw rod 12 is penetrated above the heat furnace 1 and is provided with a belt pulley 13, the thread seat 11 is matched with the screw rod 12, the calcining compartment 4 is driven to move up and down through the thread seat 11 when the screw rod 12 rotates, the large gear 9 is meshed with the rack 10 to drive the calcining roller 5 at the rearmost side to synchronously rotate when the calcining compartment 4 moves up and down, all calcining rollers 5 are synchronously rotated in the calcining compartment 4 under the meshing transmission of the small gears 8, the inner cavity right wall of the heat furnace 1 is provided with an air supply mechanism 14, the air supply mechanism 14 is provided with a plurality of groups of air supply spray heads 15 from top to bottom in sequence along the vertical direction, the right side of the calcining compartment 4 is provided with an air inlet 16, when the calcining cabin 4 is lifted, the air inlet 16 is sequentially routed through each group of air supply spray heads 15, and the calcining cabin 4 is lifted and simultaneously sequentially enters air through the air inlet 16, and the air inlet sequentially acts on each calcining roller 5 which synchronously rotates from the right end direction and is downwards discharged through the gap 7 after being guided by the calcining rail 6;
the bottom of the inner cavity of the heat furnace 1 is provided with a heating rod 17 corresponding to the descending limit position of the calcining compartment 4, the heating rod 17 is covered below the calcining roller 5 by utilizing the bottom space after the calcining compartment 4 descends, and a drop space 18 is formed between the heating rod 17 and the bottom surface of the inner cavity of the heat furnace 1;
the heating rod 17 is a multi-section bent rod, and a first blanking gap 19 is reserved between two adjacent bent sections of the heating rod 17.
The air supply mechanism 14 is an air collection cover, the outer end of the air collection cover is connected to a third-party air supply system, and a plurality of groups of air supply spray heads 15 are commonly installed on the same air collection cover. A blanking port 20 is formed in the bottom of the heat furnace 1, the bottom surface of the inner cavity of the heat furnace 1 is inclined downwards towards the direction of the blanking port 20, and the blanking port 20 is positioned at the bottom of the fall space 18 and the heating rod 17.
When the device is used, the sealing door is opened, the start button rotates the screw 12, the screw 12 rotates to drive the calcining compartment 4 to descend to a position convenient for feeding, then rod-shaped materials to be calcined are placed in the upper cavity 41 of the calcining compartment 4, the calcining compartment 4 ascends again with the rod-shaped materials through the rotation of the screw 12, the calcining compartment 4 ascends synchronously with the rack 10 meshed with the large gear 9 in the ascending process, the large gear 9 rotates with the rearmost calcining roller 5, the calcining rollers 5 rotate with all calcining rollers 5 under the mutual meshing action of the small gears 8, as the calcining rails 6 are arranged on each calcining roller 5, the rod-shaped materials are placed on the calcining rollers 5 along the length direction of the calcining rollers 5 when the calcining rollers 5 rotate, the rod-shaped materials are knocked by the calcining rails 6, the beating action can cause the rod-shaped materials to jump in the calcining cabin 4, and during the jumping process, the impurities attached to the surface can be vibrated downwards, the vibrated impurities can downwards fall through the gap 7 between the two adjacent calcining rollers 5, the screw 12 can drive the calcining cabin 4 to frequently lift and fall downwards under frequent forward and reverse rotation, and under frequent lifting action, each rod-shaped material in the calcining cabin 4 is beaten down by the gear transmission mode to thoroughly drop the impurities into the fall space 18, and finally the impurities are discharged outwards through the blanking port 20 at the bottom of the hot furnace 1, the calcining cabin 4 continuously blows air into the calcining cabin 4 through the air inlet 16 in the right direction in the process of lifting, when entering the calcining cabin 4 from the right direction, the impurities can be conveyed from the right end to the left end along the calcining rail 6 between the two adjacent calcining rollers 5, the impurities falling onto the calcined rail 6 from the material during beating are blown downwards, so that the impurity residues are avoided. Because the air supply spray heads 15 are a plurality of groups, and the plurality of groups of air supply spray heads 15 are distributed from top to bottom, the problem that impurities falling off when the calcining compartment 4 is lifted to a certain position with materials frequently lift is solved, and the stage type blowing off is realized when the impurities lift to a certain group of air supply spray heads 15, so that the plurality of groups of air supply spray heads 15 are arranged, the lifting action of the calcining compartment 4 is satisfied, and the better falling off of the impurities is realized.
After the impurities on the materials are knocked off, the calcining cabin 4 is lowered to the upper part of the drop space 18, meanwhile, the heating rod 17 is covered in the lower cavity 42 by the bottom of the calcining cabin 4, heat is generated when the heating rod 17 is electrified and fed back into the upper cavity 41 through the gap 7, and the rod-shaped materials placed in the upper cavity 41 are calcined, and the air supply nozzles 15 can continue to supply air at the moment, wherein air flow acts in the lower cavity 42 when the bottommost group of air supply nozzles 15 supply air, the heat in the lower cavity 42 is assisted to fully act on the rod-shaped materials above the gap 7 through the gap 7, the acting area is increased, and meanwhile, the temperature is increased, so that the calcining efficiency is improved.
As shown in fig. 3, 4, 5, 7 and 8, the calcining roller 5 is arranged in the middle of the calcining chamber 4, the calcining chamber 4 is divided into an upper cavity 41 and a lower cavity 42 by the calcining roller 5, the upper cavity 41 is used for storing the material to be calcined, the lower cavity 42 is internally provided with a heat transfer rod 23, a gap is reserved between the heat transfer rod 23 and the calcining roller 5 above, the shape of the heat transfer rod 23 is a multi-section bending rod consistent with the shape of the heating rod 17, a second blanking gap 24 consistent with the shape of the first blanking gap 19 is also formed between two adjacent bending sections of the heat transfer rod 23, the heating rod 17 is a heating rod, the heat transfer rod 23 is also a heat conducting rod, the electric receiving end of the heating rod 17 passes through the bottom end of the heating furnace 1 and is connected with a third party power supply system, the heat transfer rod 23 is directly fixed on the inner wall of the lower cavity 42 through the pin, when the heat transfer rod 23 descends to the limit position along with the calcining compartment 4 and covers the heat transfer rod 23 in the lower cavity 42, the second blanking gap 24 on the heat transfer rod 23 falls above the first blanking gap 19 on the heating rod 17, the limiting seat 25 is arranged at the bottom of the heat transfer rod 23, the limiting seat 25 is a heat conducting block, and when the heat transfer rod 23 descends to the limit position along with the calcining compartment 4, the limiting seat 25 contacts the heating rod 17 to realize position limitation, and meanwhile, heat generated by the heating rod 17 is transferred to the heat transfer rod 23 by utilizing the heat conductivity of the limiting seat 25, so that the heating area is increased.
In this embodiment, when the lower cavity 42 of the calcining chamber 4 with the rod-shaped material falling to the bottom thereof falls on the heating rod 17 and the rod-shaped material in the upper cavity 41 is calcined by the heating rod 17, the heat generated by the heating rod 17 is also transferred to the heat transfer rod 23 through the limiting seat 25, the heat transfer rod 23 is arranged in the lower cavity 42, and the heat transfer rod 23 and the heating rod 17 together form a heating assembly, and the upper and lower layers are separated from each other and are located in the lower cavity 42 together, so that the heat generated by the upper and lower layers can be jointly acted in the lower cavity 42, and the heat is collected in the lower cavity 42 and fed back into the upper cavity 41 through the gap 7 between the adjacent calcining rollers 5, so as to heat the rod-shaped material in the upper cavity 41 efficiently.
As shown in fig. 3, the calcining roller 5 is a solid cylindrical roller, a plurality of calcining rails 6 are arranged on the same calcining roller 5, the calcining rollers 5 are surrounded by the plurality of calcining rails 6 in a ring array mode, the calcining rails 6 protrude on the calcining roller 5, the calcining rails 6 are wavy, and two ends of the calcining rails 6 extend to two ends of the calcining roller 5 respectively. When the air is introduced into the calcining compartment 4 through the air inlet 16, the air is conveyed from the right end to the left end of the calcining roller 5 and flows along the wavy track of the calcining rail 6 in the conveying process, and the wavy shape of the calcining rail 6 can also prolong the beating area of the rod-shaped material.
As shown in fig. 2 and 5, the air inlet 16 on the right side of the calcining compartment 4 is provided with a guide plate 22, the guide plate 22 is located on the inner side of the right end of the calcining compartment 4, the guide plate 22 is located above the calcining roller 5, the front end of the guide plate 22 extends to the front side of the inner cavity wall of the calcining compartment 4, the rear end of the guide plate 22 extends to the rear side of the inner cavity wall of the calcining compartment 4, and one side of the guide plate 22 is inclined upwards and fixed on the upper edge of the air inlet 16, so that the other side of the guide plate 22 is inclined downwards towards the direction of the calcining roller 5. Under the action of the guide plate 22, the air inlet from the right air inlet 16 is blocked and guided, and the air inlet is uniformly concentrated by the right end of the calcining roller 5 and then better acts on the calcining rail 6 when guided by the guide plate 22, and impurities falling onto the calcining rail 6 are cleaned downwards.
As shown in fig. 2 and 3, the protecting plate 21 is fixed in the calcining compartment 4, and all the calcining rollers 5 pass through and pass through the protecting plate 21 when passing through the side part of the calcining compartment 4, so that the pinion 8 on the same side end of all the calcining rollers 5 is covered in the protecting plate 21, and meanwhile, the pinion 8 and the inner cavity of the calcining compartment 4 are separated from each other by the protecting plate 21.
As shown in fig. 1, a transmission device is arranged at the top of the heating furnace 1, and is in transmission connection with a belt pulley 13 at the top end of a screw rod 12 in a belt transmission mode, wherein the transmission device is a motor, and is omitted in the invention.
The above-described orientation is not intended to represent a specific orientation of each component in the present embodiment, but is merely provided to facilitate description of the embodiments, and is set by referring to the orientation in the drawings, and it is essential that the specific orientation of each component be described according to the actual installation and actual use thereof and the orientation that is habitual to a person skilled in the art, and this is described.
The above-described embodiments are provided to further explain the objects, technical solutions, and advantageous effects of the present invention in detail. It should be understood that the foregoing is only illustrative of the present invention and is not intended to limit the scope of the present invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The utility model provides a magnesium calcium refractory calcination device, a serial communication port, including hot stove (1), feed inlet (2) have been seted up to the front side of hot stove (1), feed inlet (2) are gone up to articulate has sealing door (3), be equipped with in hot stove (1) and forge cabin (4), it has forge roller (5) to change according to the left and right sides direction in forge cabin (4), forge roller (5) are a plurality of places, and along forge cabin (4) fore-and-aft direction distributes in proper order, forge roller (5) left and right sides both ends link up to forge cabin (4) and pass through the bearing switching, forge roller (5) are last to be equipped with on each of forge roller (5) and forge rail (6), keep gap (7) between forge rail (6) between two adjacent forge roller (5), the upper and lower both ends of forge cabin (4) open and communicate with each other, the upper end of gap (7) communicates with each other with the lower extreme of forge cabin (4), connect through pinion (8) between the tip of two forge roller (5), it has rack (10) to be equipped with rack (10) outside in the direction of big screw thread (10) along the back of the vertical direction of calcining cabin (4), the rear side of the inner cavity of the hot furnace (1) is provided with a vertical upward screw (12) through a bearing, the top end of the screw (12) is communicated with the upper part of the hot furnace (1) and is provided with a belt wheel (13), a threaded seat (11) is matched with the screw (12), when the screw (12) rotates, the threaded seat (11) drives the calcining cabin (4) to lift, when the calcining cabin (4) lifts, a large gear (9) is meshed with a rack (10) to drive a calcining roller (5) at the rearmost side to synchronously rotate, all calcining rollers (5) are meshed with a small gear (8) to drive each other to synchronously rotate in the calcining cabin (4), the inner cavity right wall of the hot furnace (1) is provided with an air supply mechanism (14), a plurality of groups of air supply spray heads (15) are sequentially arranged downwards along the vertical direction of the air supply mechanism, when the calcining cabin (4) lifts, the calcining cabin (4) sequentially passes through each group of air supply spray heads (15), and the calcining cabin (4) simultaneously drives the calcining roller (5) at the rearmost side to synchronously rotate along the right end direction through the calcining roller (6), and the air supply air inlet sequentially passes through the air guide rails (7) at the right end of the calcining roller (6);
the bottom of the inner cavity of the hot furnace (1) is provided with a heating rod (17) corresponding to the descending limit position of the calcining cabin (4), the heating rod (17) is covered below the calcining roller (5) by utilizing a bottom space after the calcining cabin (4) descends, and a drop space (18) is formed between the heating rod (17) and the bottom surface of the inner cavity of the hot furnace (1);
the heating rod (17) is a multi-section bent rod with a bent shape, and a first blanking gap (19) is reserved between two adjacent bent sections of the heating rod (17).
2. A device for calcining a magnesium calcium refractory according to claim 1 wherein the air supply means (14) is a wind collecting hood, the outer end of the wind collecting hood is connected to a third party air supply system, and the plurality of sets of air supply nozzles (15) are commonly mounted on the same wind collecting hood.
3. The magnesia-calcia refractory calcination device according to claim 1, wherein the bottom of the furnace (1) is provided with a blanking port (20), the bottom surface of the inner cavity of the furnace (1) is inclined downwards towards the direction of the blanking port (20), and the blanking port (20) is positioned at the bottom of the fall space (18) and the heating rod (17).
4. The magnesium calcium refractory calcining device according to claim 2, wherein the calcining roller (5) is a solid cylindrical roller, a plurality of calcining rails (6) are arranged on the same calcining roller (5), the calcining rollers (5) are surrounded by the plurality of calcining rails (6) in a ring-shaped array, the calcining rails (6) are protruded on the calcining roller (5), the calcining rails (6) are wavy, and two ends of the calcining rails (6) extend to two ends of the calcining roller (5) respectively.
5. A magnesia-calcia refractory calcination device according to claim 3, characterised in that the calcination chamber (4) is internally fixed with a protection plate (21), all the calcination rollers (5) passing through the protection plate (21) when passing through the side of the calcination chamber (4), so that the pinions (8) on the same side ends of all the calcination rollers (5) are covered in the protection plate (21) and the pinions (8) and the inner cavity of the calcination chamber (4) are separated from each other by the protection plate (21).
6. The magnesia-calcia refractory calcination device according to claim 4, characterized in that the top of the furnace (1) is provided with a transmission device which is in transmission connection with a belt wheel (13) at the top end of the screw (12) in a belt transmission manner.
7. The magnesia-calcia refractory calcination device according to claim 5, wherein a guide plate (22) is arranged on the air inlet (16) on the right side of the calcination chamber (4), the guide plate (22) is positioned on the inner side of the right end of the calcination chamber (4), the guide plate (22) is positioned above the calcination roller (5), the front end of the guide plate (22) extends to the front side of the inner cavity wall of the calcination chamber (4), the rear end of the guide plate (22) extends to the rear side of the inner cavity wall of the calcination chamber (4), and one side of the guide plate (22) is inclined upwards and fixed on the upper edge of the air inlet (16) so that the other side of the guide plate (22) is inclined downwards towards the direction of the calcination roller (5).
8. The magnesium calcium refractory calcination device according to claim 1, wherein the calcination roller (5) is arranged in the middle of the calcination chamber (4), the calcination chamber (4) is divided into an upper cavity (41) and a lower cavity (42) by the calcination roller (5), the upper cavity (41) is used for storing the material to be calcined, a heat transfer rod (23) is arranged in the lower cavity (42), a gap is reserved between the heat transfer rod (23) and the calcination roller (5) above, the shape of the heat transfer rod (23) is a multi-section bending rod consistent with the shape of the heating rod (17), a second blanking gap (24) consistent with the shape of the first blanking gap (19) is formed between two adjacent bending sections of the heat transfer rod (23), the heating rod (17) is a heating rod, the heat transfer rod (23) is also a heat conducting rod, the connection end of the heating rod (17) is connected to a third party power supply system through the bottom end of the heating furnace (1), the heat transfer rod (23) is directly fixed on the inner wall of the lower cavity (42) through pins, the heat transfer rod (23) falls to the upper part (25) along with the upper blanking gap (25) of the heating rod (23) to limit the upper cavity (25) when the second blanking gap (19) is covered by the second blanking gap (25), when the heat transfer rod (23) descends to the limit position along with the calcining compartment (4), the limiting seat (25) contacts the heating rod (17) to realize position limitation, and meanwhile, heat generated by the heating rod (17) is transferred to the heat transfer rod (23) by utilizing the heat conductivity of the limiting seat (25), so that the heating area is increased.
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| CN202310816230.4A CN117404912B (en) | 2023-07-05 | 2023-07-05 | Calcining device for magnesium-calcium refractory material |
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| CN202310816230.4A CN117404912B (en) | 2023-07-05 | 2023-07-05 | Calcining device for magnesium-calcium refractory material |
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| KR20080082299A (en) * | 2007-03-08 | 2008-09-11 | 주식회사 에스제이케이 | Device for calcine of batch type heat treatment |
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| CN216011730U (en) * | 2021-09-06 | 2022-03-11 | 营口理工学院 | Calcining device for preparing magnesium-calcium refractory material |
| CN217628157U (en) * | 2022-04-24 | 2022-10-21 | 常熟市宏宇钙化物有限公司 | Calcining device for preparing calcium oxide |
| CN115925283A (en) * | 2022-11-29 | 2023-04-07 | 浙江钙科科技股份有限公司 | Calcium carbonate suspension calcination preparation process |
| CN219117352U (en) * | 2023-01-30 | 2023-06-02 | 宁夏尚佳节能环保科技有限公司 | Gypsum powder calcination apparatus for producing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20080082299A (en) * | 2007-03-08 | 2008-09-11 | 주식회사 에스제이케이 | Device for calcine of batch type heat treatment |
| CN212620086U (en) * | 2020-06-16 | 2021-02-26 | 江苏华制自动化科技有限公司 | Energy-saving calcining electric heating furnace |
| CN216011730U (en) * | 2021-09-06 | 2022-03-11 | 营口理工学院 | Calcining device for preparing magnesium-calcium refractory material |
| CN217628157U (en) * | 2022-04-24 | 2022-10-21 | 常熟市宏宇钙化物有限公司 | Calcining device for preparing calcium oxide |
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| CN219117352U (en) * | 2023-01-30 | 2023-06-02 | 宁夏尚佳节能环保科技有限公司 | Gypsum powder calcination apparatus for producing |
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