CN205324623U - Quick calcination regeneration system of energy -saving tuber pipe cooled casting sand - Google Patents
Quick calcination regeneration system of energy -saving tuber pipe cooled casting sand Download PDFInfo
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- CN205324623U CN205324623U CN201620018392.9U CN201620018392U CN205324623U CN 205324623 U CN205324623 U CN 205324623U CN 201620018392 U CN201620018392 U CN 201620018392U CN 205324623 U CN205324623 U CN 205324623U
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Abstract
The utility model provides a quick calcination regeneration system of energy -saving tuber pipe cooled casting sand, includes preheating unit, calcination regenerating unit and high temperature flue gas processing unit, and calcination regenerating unit includes the furnace body, has been set gradually cloth room, combustion chamber, one -level heat -exchanging chamber, second grade heat -exchanging chamber and has collected the sand room under to by last in the furnace body, and the top of furnace body is provided with second feed inlet and main exhaust pipe respectively, and the bottom of furnace body is provided with the second discharge gate. The last first feed inlet of preheating unit links to each other with the automatic feeder of old sand, and first discharge gate links to each other with the second feed inlet. First on the high temperature flue gas processing unit advances the mouth and links to each other with main exhaust pipe, and first outlet flue advances the mouth with the second and links to each other, and first air inlet links to each other with first air -blower, and first gas outlet is continuous with one -level heat -exchanging chamber with the combustion chamber of calcination unit respectively. The utility model discloses realizing the regenerative process of molding sand, make full use of regenerative process's energy improves regeneration facility's work efficiency, avoids the energy extravagant.
Description
Technical field
This utility model relates to a kind of recycling cast waste sand system, the quick roasting regeneration system of high temperature of especially a kind of energy-saving casting model powder, belongs to Casting Equipment technical field。
Background technology
Along with the continuous lifting of China's machinery industry manufacture level, requiring more and more higher to the surface quality of continuous castings of casting industry, the usage ratio covering the Novel molding sand such as sand and resin sand is more and more higher。After product casting, namely above-mentioned molding sand becomes cast waste sand。The circulating and recovering of cast waste sand can make foundry enterprise effectively reduce energy resource consumption, energy-saving sand resource, fundamentally prevents the waste molding sand pollution problem to environment。
The key technical problem of recycling cast waste sand reuse is, it is achieved efficiently separating of two class materials, and namely molding sand matrix is mutually disengaged with a large amount of materials playing cementation of molding sand surface residual, such as various resin materials, waterglass etc.。
At present, the predominantly organic tool method of reproduction of renovation process of cast waste sand and thermal reclamation, wherein thermal reclamation be cast waste sand is heated, the Organic substance such as overlay film or resin of sand grain surface parcel is removed in calcination, regeneration effect is better。But, in thermal reclamation process, cast waste sand is brought rapidly up after continuously entering sand preparing machine, makes sand grain surface separating organic matters remove, and then cooling enters regenerative process rapidly。But the reclaimed sand obtained after supercooling regenerative process often has higher temperature, produce energy waste on the one hand, on the other hand the conveying of reclaimed sand, storage are caused difficulty。
For the problem solving energy waste, application number be 2010101972375 Chinese patent application disclose a kind of waste molding sand or core generating apparatus again, heat convection technology is combined by this equipment with boiling fluidisation heating technique, should in the thermal reclamation of waste and old type (core) sand。Being connected with fluidising chamber by flue by the outlet flue on roaster top, the high-temperature flue gas discharged from the outlet flue on roaster top enters in fluidising chamber by flue, for the fluidisation thermal regeneration of sand grains, so that heat energy is fully utilized, and flue gas loss reduction。Although utilizing this kind of method that the heat of part high-temperature flue gas can be made to be utilized, but there is also some shortcomings。First, being the flue gas after burning discharged above equipment owing to entering the gas in fluidising chamber, temperature is significantly high, and the sand grains through roasting below equipment therefore can be made to be difficult to cool down, thus collection and transport to regeneration sand grains are made troubles, affect the regeneration efficiency of equipment；Secondly, the flue gas after burning also exists the problem that oxygen content is low, it is impossible to meet the needs of burning so that in burner, the fuel of ejection cannot fully burn, and so not only results in energy waste, also can to environment。
For application number be 2010101972375 a kind of waste molding sand of providing of Chinese patent or the problem made troubles of the regeneration collection of sand grains that exists of core regeneration equipment and transport, application number be 201210360433.9 Chinese patent provide a kind of boiling type fluo solid roaster, this roaster is fixedly installed a remittance air chamber in the lower section of body of heater, the roof of remittance air chamber is fixedly installed airduct, the lower end of described airduct is arranged in remittance air chamber, and the upper end of airduct is positioned at heat exchange zone and is provided with blast cap。In practical process, the sand grains after roasting is through carrying out heat exchange with the air in airduct, on the one hand, can accelerate the cooling of sand grains；On the other hand, make the air displacement hot-air in airduct enter in burner hearth, help the burning of old sand in burner hearth。But in the program, the high-temperature flue gas through roasting is still directly discharged in air, it does not have make full use of the heat in high-temperature flue gas, causes the waste of the energy。
Utility model content
Problem for the energy waste existed in existing cast waste sand thermal reclamation process and conveying, storage difficulty, this utility model provides a kind of energy-saving quick roasting regeneration system of airduct cooled casting model powder, the surface organic matter making cast waste sand fully peels off, it is achieved the regenerative process of molding sand；Meanwhile, make full use of the energy of regenerative process, improve again the work efficiency of generating apparatus, it is to avoid energy waste。
The technical scheme in the invention for solving the technical problem is:
A kind of energy-saving quick roasting regeneration system of airduct cooled casting model powder, including preheating unit and roasting regeneration unit, described roasting regeneration unit includes body of heater, cloth room, combustor, heat-exchanging chamber and sand collecting chamber it is disposed with from top to bottom in described body of heater, the top of described body of heater is respectively arranged with the second charging aperture and main smoke discharging pipe, the bottom of described body of heater is provided with the second discharging opening, and described second discharging opening is provided with the valve that shakes out
Described preheating unit is arranged at the outside of roasting regeneration unit；
Described preheating unit includes First Heat Exchanger, and described First Heat Exchanger is respectively arranged with the first charging aperture, the first discharging opening, the second smoke inlet and the second outlet flue；
Described first charging aperture is connected with old sand automatic feeding device, and described first discharging opening is connected with the second charging aperture being arranged on roasting regeneration unit；
Described heat-exchanging chamber includes one-level heat-exchanging chamber and two grades of heat-exchanging chambers, and described one-level heat-exchanging chamber is arranged at the top of described two grades of heat-exchanging chambers；
It is provided with heat exchange box in described one-level heat-exchanging chamber, it is arranged on furnace interior, described heat exchange box includes plectane, lower plectane and gusset plate, described upper plectane, lower plectane and gusset plate have collectively constituted a circular hollow structure, described gusset plate is provided with the second air inlet, described upper plectane and described lower plectane are provided with between through hole and relative through hole and are connected by leakage sandpipe, described upper plectane is provided with the second gas outlet, described second gas outlet is provided with first airduct through with the second air inlet, described first airduct upper end is positioned on the upside of plectane and is provided with the first blast cap；
Described two grades of heat-exchanging chambers include wind pipe type heat exchanger and the second aerator, described wind pipe type heat exchanger includes air main, the second airduct and the second blast cap, described air main is the vortex-like wire shaped that one end open one end is closed, the opening of described air main and the second aerator are connected, described air main has been evenly arranged the second airduct, described second airduct is provided with the second blast cap of tubular structure in downward bending, and the height ecto-entad of the second airduct being arranged on every layer of air main successively successively decreases；
The outside of described roasting regeneration unit is additionally provided with high-temperature flue gas processing unit；
Described high-temperature flue gas processing unit includes the second heat exchanger and the first aerator；
Described second heat exchanger is respectively arranged with the first smoke inlet, the first outlet flue, the first air inlet and the first gas outlet；
Described first smoke inlet is connected with the main smoke discharging pipe at described body of heater top, and described first outlet flue is connected with the second smoke inlet on described First Heat Exchanger；
Described first air inlet is connected with described first aerator, and described first gas outlet is connected with the combustor of described roasting unit and one-level heat-exchanging chamber respectively。
According to a detailed description of the invention of the present utility model, described cloth indoor are provided with cloth cone and cloth sieve plate, described cloth cone is positioned at the top of described cloth sieve plate, described cloth cone is in cone-shaped structure, described cloth sieve plate is inverted round table-like structure, described cloth cone is connected by connecting rod and body of heater are fixing, and one end being relatively large in diameter of described cloth sieve plate is fixing with body of heater to be connected, and the conical surface of described cloth cone and cloth sieve plate is provided with the uniform sieve aperture along body of heater axial direction。
Further, the diameter of one end that the diameter of the lower end of described cloth cone is less more than the diameter of described cloth sieve plate。
According to another embodiment of the present utility model, described First Heat Exchanger adopts superconductive heat exchanger, described superconductive heat exchanger includes casing and superconduction heat exchange pipe, it is provided with dividing plate in described casing, casing is divided into cold sand room and hot air chamber by described dividing plate, being provided with superconduction heat exchange pipe on described dividing plate, described first charging aperture and the first discharging opening are respectively arranged at the top and bottom of cold sand room, and described second smoke inlet and the first smoke inlet are respectively arranged at the top and bottom of hot air chamber。
Further, described superconduction heat exchange pipe is arranged on described dividing plate with certain gradient, and it is indoor that wherein relatively low one end is positioned at cold sand, and higher one end is positioned at hot air chamber。
According to another detailed description of the invention of the present utility model, described second heat exchanger adopts pipe heat exchanger, described pipe heat exchanger includes housing, heat exchanger tube, the first smoke inlet, the first outlet flue, the first air inlet and the first gas outlet, one end of described heat exchanger tube is connected with the first air inlet, and the other end of described heat exchanger tube and the first gas outlet are connected。
According to another detailed description of the invention of the present utility model, the sidewall of the furnace body of described combustor is provided with several burners, and described burner axis around body of heater on sustained height is evenly arranged, each burner is to obliquely downward flame flame in body of heater and forms vortex gas flow。
The beneficial effects of the utility model are:
The one quick roasting regeneration system of energy-saving airduct cooled casting model powder that this utility model provides,
First, in advance the temperature of old sand is promoted rapidly by the heat of flue gas after arranging old sand preheater and can utilizing burning。
Second, by arranging external box-type heat exchanger, the low-temperature flue gas obtained through heat transfer process is connected with old sand preheater, old sand is carried out and heat treatment, the hot-air that adds obtained through heat transfer process each leads in combustor and one-level heat-exchanging chamber, be conducive to keeping the temperature in combustor, save fuel, make the high-temperature flue gas that roaster is discharged be able to sufficient utilization。
3rd, by arranging two grades of heat-exchanging chambers, air is blasted from two grades of heat-exchanging chambers of stove inner bottom part, on the one hand the sand grains fallen played stirring and lift effect, the sand grains making heat-exchanging chamber lower planes position keeps fluidized state, makes phase mutual friction between granule, reduces the particle surface residue after roasting, fully there is heat exchange with the air blasted in the sand grains containing amount of residual heat after roasting on the other hand, is also beneficial to reduce the temperature of discharging sand grains。
Accompanying drawing explanation
Fig. 1 is loop structure schematic diagram of the present utility model；
Fig. 2 is the structural representation of superconductive heat exchanger 1 in this utility model preheating unit；
Fig. 3 is the structural representation of pipe heat exchanger in this utility model high-temperature flue gas processing unit；
Fig. 4 is the structural representation in this utility model roasting regeneration unit；
Fig. 5 is the top view of roaster；
Fig. 6 is the arrangement schematic diagram of burner on roaster；
Fig. 7 is position relationship and the structural representation of cloth cone and cloth sieve plate in roaster cloth room；
Fig. 8 is the top view of heat exchange box in roaster one-level heat-exchanging chamber；
Fig. 9 is the A-A sectional view in Fig. 8；
Figure 10 is the perspective view of heat exchange box in roaster one-level heat-exchanging chamber；
Figure 11 is the perspective view of roaster one-level heat-exchanging chamber apoplexy pipe heat exchanger；
Figure 12 is the structural representation of superconductive heat exchanger 1 in embodiment two。
In figure: 1-superconductive heat exchanger, 11-casing, 12-dividing plate, the cold sand room of 13-, 14-hot air chamber, 15-superconduction heat exchange pipe, 16-the first charging aperture, 17-the first discharging opening, 18-the second smoke inlet, 19-the second outlet flue, 2-body of heater, 21-inner thermal insulating layer, 22-external thermal insulation, 23-the second charging aperture, 24-props up exhaust opening, 25-props up smoke discharging pipe, the main smoke discharging pipe of 26-, 3-cloth room, 31-cloth is bored, 311-connecting rod, 32-cloth sieve plate, 4-combustor, 41-burner, 411-fuel inlet, 412-combustion-supporting gas import, 5-one-level heat-exchanging chamber, 51-heat exchange box, the upper plectane of 511-, plectane under 512-, 513-gusset plate, 514-the second air inlet, 515-leaks sandpipe, 516-the second gas outlet, 517-the first airduct, 518-the first blast cap, bis-grades of heat-exchanging chambers of 6-, 61-wind pipe type heat exchanger, 611-air main, 612-the second airduct, 613-the second blast cap, 62-the second aerator, 63-support, 7-sand collecting chamber, 71-the second discharging opening, 72-shakes out valve, 8-pipe heat exchanger, 81-housing, 82-heat exchanger tube, 83-the first smoke inlet, 84-the first outlet flue, 85-the first air inlet, 86-the first gas outlet, 9-the first aerator。
Detailed description of the invention
Embodiment one:
As it is shown in figure 1, the quick roasting regeneration system of described one energy-saving airduct cooled casting model powder includes preheating unit, roasting regeneration unit and high-temperature flue gas processing unit。
As in figure 2 it is shown, described preheating unit includes First Heat Exchanger, described First Heat Exchanger adopts superconductive heat exchanger 1, and described superconductive heat exchanger 1 includes casing 11 and superconduction heat exchange pipe 15。Being provided with dividing plate 12 in described casing 11, the space in casing 11 is divided into two parts by described dividing plate 12, and a part is cold sand room 13, and another part is hot air chamber 14。Being provided with superconduction heat exchange pipe 15 on described dividing plate 12, described superconduction heat exchange pipe 15 is arranged on dividing plate 12 with certain gradient, and wherein relatively low one end is positioned at cold sand room 13, and higher one end is positioned at hot air chamber 14。The upper end of described cold sand room 13 is provided with the first charging aperture 16, and described first charging aperture 16 is connected with old sand automatic feeding device, and the lower end of described cold sand room 13 is provided with the first discharging opening 17, and described first discharging opening 17 is connected with roaster by taper sand trap 10。The bottom of described hot air chamber 14 is provided with the second smoke inlet 18, and top is provided with the second outlet flue 19。So, after the flue gas that temperature is higher enters hot air chamber 14 from the second smoke inlet 18, cold sand room 13 is transferred heat to by superconduction heat exchange pipe 15, thus the temperature improved in cold sand room 13, the process that old sand falls carries out heat exchange, thus improving the temperature of old sand, old sand being carried out the pre-heat treatment, improving the efficiency of roasting regeneration。In order to keep the temperature in superconductive heat exchanger 1, it is to avoid thermal loss, the outside of described casing 11 is coated with the heat-insulation layer being made up of insulation material。
As shown in Figure 4, described roasting regeneration unit includes roaster, and described roaster includes body of heater 2, is disposed with cloth room 3, combustor 4,5, two grades of heat-exchanging chambers 6 of one-level heat-exchanging chamber and sand collecting chamber 7 in described body of heater 2 from top to bottom。Described body of heater 2 is tapered centre, two ends is cylindrical tubular structure, and described centre is inside and outside inner thermal insulating layer 21 and the external thermal insulation 22 of being respectively arranged with of cylindrical part, described inner thermal insulating layer 21 and the material of external thermal insulation 22 are heat insulating refractory material。As it is shown in figure 5, the centre position at described body of heater 2 top is provided with the second charging aperture 23, described second charging aperture 23 is connected with the first discharging opening 17 of superconductive heat exchanger 1 by taper sand trap 10。The top of described body of heater 2 is additionally provided with four exhaust openings 24, described four exhaust opening 24 constitute one square, described exhaust opening 24 is connected with a smoke discharging pipe 25, and each smoke discharging pipe 25 is all connected with main smoke discharging pipe 26。
As shown in Figure 4, being provided with cloth cone 31 and cloth sieve plate 32 in described cloth room 3, described cloth cone 31 is positioned at the top of cloth sieve plate 32。Described cloth cone 31 is connected by connecting rod 33 is fixing with the cone-shaped top surface on body of heater 2 top, and described cloth sieve plate 32 is fixing with the top on the body of heater face of cylinder to be connected。As it is shown in fig. 7, described cloth cone 31 is in cone-shaped structure, described cloth sieve plate 32 is in inverted round table-like structure, and is provided with the uniform sieve aperture along body of heater axial direction on the conical surface of described cloth cone 31 and cloth sieve plate 32。So enter into the old sand in body of heater 2 through the second charging aperture 23 and first drop on cloth cone 31, it is positioned at cloth to bore the old sand beyond 31 diameters and will fall on cloth sieve plate 32, bore due to cloth and 31 and cloth sieve plate 32 are evenly equipped with sieve aperture, therefore old sand will have the even drop down effect of raindrop type when having just enter into combustor 4, thus utilizing the space in combustor 4 fully, improve the treatment effect of roaster。Bore the old sand beyond 31 diameters directly fall to combustor 4 to prevent from being positioned at cloth, the diameter of one end that the diameter of the lower end of described cloth cone 31 is less more than the diameter of cloth sieve plate 32。
As shown in Figure 4, described cloth room 3 be arranged below combuster 4, the sidewall of the furnace body of described combustor 4 is provided with several burners 41, quantity in the present embodiment is three, as shown in Figure 6, three burners 41 are evenly arranged around the axis of body of heater 2 on sustained height, and the horizontal direction of each burner 41 and body of heater 2 and vertical direction are all in certain angle, work process Flame is made to spray towards the obliquely downward in body of heater 2, this is conducive to flame in combustion to produce eddy current effect, uniformly heating, will assist in the Multidirectional motion of sand grains, promote that surface organic layer reaction is peeled off。Each described burner 41 is provided with fuel inlet 411 and combustion-supporting gas import 412, described fuel inlet 411 is provided with ratio adjusting valve, described combustion-supporting gas import 412 is provided with electric butterfly valve。
As shown in Figure 4, described combustor 4 be arranged below one-level heat-exchanging chamber 5, be provided with heat exchange box 51 in described one-level heat-exchanging chamber 5。As shown in Fig. 8, Fig. 9 and Figure 10, described heat exchange box 51 includes plectane 511, lower plectane 512 and gusset plate 513, described upper plectane 511, lower plectane 512 and gusset plate 513 have collectively constituted a circular hollow structure, described gusset plate 513 is provided with the second air inlet 514, the second described air inlet 514 is provided through the pipeline of body of heater 2。As shown in Figure 10, described upper plectane 511 and be correspondingly arranged on through hole on lower plectane 512, and the through hole of described upper plectane 511 is connected by leaking sandpipe 515 with the through hole of lower plectane 512。Described upper plectane 511 is additionally provided with the second gas outlet 516, the second described gas outlet 516 is provided with the first airduct 517, in order to avoid sand enters in heat exchange box 51 from the first airduct 517 in the process fallen, the first described airduct 517 is provided with the first blast cap 518。
As shown in Figure 4, described one-level heat-exchanging chamber 5 be arranged below two grades of heat-exchanging chambers 6, described two grades of heat-exchanging chambers 6 include wind pipe type heat exchanger 61 and the second aerator 62。Described wind pipe type heat exchanger 61 is connected with body of heater 2 by the support 63 being arranged on body of heater 2 inwall。As shown in figure 11, described wind pipe type heat exchanger 61 includes air main the 611, second airduct 612 and the second blast cap 613 being arranged on the second airduct 612, described air main 611 is in vortex-like wire shaped, and the outermost of described vortex-like line air main 611 is provided with straight-run of pipe road, described straight pipeline is connected with the second aerator 62 after body of heater 2。Described air main 611 has been evenly arranged the second airduct 612, described second airduct 612 is provided with the second blast cap 613, as shown in figure 11, the second blast cap 613 is the tubular structure of downward bending, and the height ecto-entad of the second airduct 612 being arranged on every layer of air main 611 successively successively decreases。So mainly there are three aspect effects, first, fall in the process of one-level heat-exchanging chamber 5 at sand, the air blasted from two grades of heat-exchanging chambers 6 is when by leakage sandpipe 515 heat exchange box 51 of one-level heat-exchanging chamber 5, the sand fallen by leaking sandpipe 515 can be played stirring and the effect lifted, the sand making one-level heat-exchanging chamber 5 lower planes position holds fluidized state, makes phase mutual friction between granule, reduces the particle surface residue after roasting；Second, owing to second heat switch room 6 is maintained at barotropic state, under the drive of the effect of increasing of air, the sand grain surface residue that partial frictional comes off will rise with hot-air, enters combustor 4 and burns further, is finally taken away by smoke discharging pipe；3rd, the second aerator 62 by wind pipe type heat exchanger 61 to when blasting air in two grades of heat-exchanging chambers 6, the second blast cap 613 owing to being arranged on the second airduct 612 is the tubular structure of downward bending, and the height ecto-entad of the second airduct 612 being arranged on every layer of air main 611 successively successively decreases, therefore air curtain can be formed in the bottom in two grades of heat-exchanging chambers 6, the sand fallen is played certain barrier effect, thus extending sand residence time in two grades of heat-exchanging chambers 6, and then the temperature of reduction sand, to facilitate storage and transport。As shown in Figure 4, the lower section of described two grades of heat-exchanging chambers 6 is sand collecting chamber 7, and in the sand collecting chamber 7 that the sand after regeneration cooling falls, the bottom of described sand collecting chamber 7 is provided with the second discharging opening 71, and described discharging opening 71 is provided with the valve 72 that shakes out。
As it is shown in figure 1, described high-temperature flue gas processing unit the second heat exchanger and the first aerator 9, described second heat exchanger adopts pipe heat exchanger 8。As it is shown on figure 3, described pipe heat exchanger 8 includes housing 81, heat exchanger tube the 82, first smoke inlet the 83, first outlet flue the 84, first air inlet 85 and the first gas outlet 86。Described first aerator 9 is connected with heat exchanger tube 82 by the first air inlet 85。
As shown in Figure 1, first smoke inlet 83 of described pipe heat exchanger 8 is connected with the main smoke discharging pipe 26 on roaster top, first outlet flue 84 of described pipe heat exchanger 8 is connected with the second smoke inlet 18 of the superconductive heat exchanger 1 of preheating unit, and the second outlet flue 19 of described superconductive heat exchanger 1 is connected with exhaust treatment system。First gas outlet 86 of described pipe heat exchanger 8 is connected with the combustion-supporting gas import 412 on burner 41 and the second air inlet 514 on heat exchange box 51 respectively。
During work, the high-temperature flue gas that main smoke discharging pipe 26 is discharged through body of heater 2 top, pipe heat exchanger 8 is entered from the first smoke inlet 83 of pipe heat exchanger 8 by pipeline, meanwhile, first aerator 9 passes into air in the heat pipe 82 of pipe heat exchanger 8, carrying out heat exchange in pipe heat exchanger 8 between high-temperature flue gas and air, then low-temperature flue gas is discharged from the first outlet flue 84 of pipe heat exchanger 8, and hot-air is discharged from the first gas outlet 86 of pipe heat exchanger 8。Described the first outlet flue 84 from pipe heat exchanger 8 is discharged low-temperature flue gas and is entered the second smoke inlet 18 of superconductive heat exchanger 1 by pipeline, and carry out heat exchange with old sand in superconductive heat exchanger 1, old sand carries out the pre-heat treatment, and the flue gas in final superconductive heat exchanger 1 hot air chamber 14 enters exhaust treatment system after the second outlet flue 19 is discharged。Described the first gas outlet 86 from pipe heat exchanger 8 is discharged hot-air and is respectively enterd combustor 4 and one-level heat-exchanging chamber 5 by pipeline, and the hot-air passing into one-level heat-exchanging chamber 5 enters combustor 4 further through the second gas outlet 516 on heat exchange box 51。Pass into the hot-air of one-level heat-exchanging chamber 5, heat exchange can be carried out on the one hand with the sand fallen by leaking sandpipe 515, while sand is lowered the temperature, improve the temperature of the hot-air passing into one-level heat-exchanging chamber 5 further, be conducive to keeping the temperature in combustor 4, save fuel；On the other hand, air owing to entering from two grades of heat-exchanging chambers 6 is finally also intended to discharge from main smoke discharging pipe 26 through combustor 4, in order to keep the temperature in combustor 4, pass into the hot-air in one-level heat-exchanging chamber 5 and can also carry out heat exchange with the air entered from two grades of heat-exchanging chambers 6, thus improving the temperature of the air entered from two grades of heat-exchanging chambers 6。
Embodiment two:
As shown in figure 12, described superconductive heat exchanger adopts double-layer box body, including internal box and outer case, described internal box and outer case are all in direction structure, the space formed between described internal box and outer case is hot air chamber 14, and the space within described internal box is cold sand room 13, and described superconduction heat exchange pipe 15 is installed on internal box, and one end of described superconduction heat exchange pipe 15 is positioned at cold sand room 13, the other end is positioned at hot air chamber 14。All the other structures are with embodiment one。
Claims (7)
1. the energy-saving quick roasting regeneration system of airduct cooled casting model powder, including preheating unit and roasting regeneration unit, described roasting regeneration unit includes body of heater, cloth room, combustor, heat-exchanging chamber and sand collecting chamber it is disposed with from top to bottom in described body of heater, the top of described body of heater is respectively arranged with the second charging aperture and main smoke discharging pipe, the bottom of described body of heater is provided with the second discharging opening, and described second discharging opening is provided with the valve that shakes out, it is characterised in that:
Described preheating unit is arranged at the outside of roasting regeneration unit；
Described preheating unit includes First Heat Exchanger, and described First Heat Exchanger is respectively arranged with the first charging aperture, the first discharging opening, the second smoke inlet and the second outlet flue；
Described first charging aperture is connected with old sand automatic feeding device, and described first discharging opening is connected with the second charging aperture being arranged on roasting regeneration unit；
Described heat-exchanging chamber includes one-level heat-exchanging chamber and two grades of heat-exchanging chambers, and described one-level heat-exchanging chamber is arranged at the top of described two grades of heat-exchanging chambers；
It is provided with heat exchange box in described one-level heat-exchanging chamber, it is arranged on furnace interior, described heat exchange box includes plectane, lower plectane and gusset plate, described upper plectane, lower plectane and gusset plate have collectively constituted a circular hollow structure, described gusset plate is provided with the second air inlet, described upper plectane and described lower plectane are provided with between through hole and relative through hole and are connected by leakage sandpipe, described upper plectane is provided with the second gas outlet, described second gas outlet is provided with first airduct through with the second air inlet, described first airduct upper end is positioned on the upside of plectane and is provided with the first blast cap；
Described two grades of heat-exchanging chambers include wind pipe type heat exchanger and the second aerator, described wind pipe type heat exchanger includes air main, the second airduct and the second blast cap, described air main is the vortex-like wire shaped that one end open one end is closed, the opening of described air main and the second aerator are connected, described air main has been evenly arranged the second airduct, described second airduct is provided with the second blast cap of tubular structure in downward bending, and the height ecto-entad of the second airduct being arranged on every layer of air main successively successively decreases；
The outside of described roasting regeneration unit is additionally provided with high-temperature flue gas processing unit；
Described high-temperature flue gas processing unit includes the second heat exchanger and the first aerator；
Described second heat exchanger is respectively arranged with the first smoke inlet, the first outlet flue, the first air inlet and the first gas outlet；
Described first smoke inlet is connected with the main smoke discharging pipe at described body of heater top, and described first outlet flue is connected with the second smoke inlet on described First Heat Exchanger；
Described first air inlet is connected with described first aerator, and described first gas outlet is connected with the combustor of described roasting unit and one-level heat-exchanging chamber respectively。
2. the quick roasting regeneration system of one according to claim 1 energy-saving airduct cooled casting model powder, it is characterized in that: described cloth indoor are provided with cloth cone and cloth sieve plate, described cloth cone is positioned at the top of described cloth sieve plate, described cloth cone is in cone-shaped structure, described cloth sieve plate is inverted round table-like structure, described cloth cone is connected by connecting rod and body of heater are fixing, one end being relatively large in diameter of described cloth sieve plate is fixing with body of heater to be connected, and the conical surface of described cloth cone and cloth sieve plate is provided with the uniform sieve aperture along body of heater axial direction。
3. the quick roasting regeneration system of one according to claim 2 energy-saving airduct cooled casting model powder, it is characterised in that: the diameter of one end that the diameter of lower end of described cloth cone is less more than the diameter of described cloth sieve plate。
4. the quick roasting regeneration system of one according to claim 1 energy-saving airduct cooled casting model powder, it is characterized in that: described First Heat Exchanger adopts superconductive heat exchanger, described superconductive heat exchanger includes casing and superconduction heat exchange pipe, it is provided with dividing plate in described casing, casing is divided into cold sand room and hot air chamber by described dividing plate, described dividing plate is provided with superconduction heat exchange pipe, described first charging aperture and the first discharging opening are respectively arranged at the top and bottom of cold sand room, and described second smoke inlet and the first smoke inlet are respectively arranged at the top and bottom of hot air chamber。
5. the quick roasting regeneration system of one according to claim 4 energy-saving airduct cooled casting model powder, it is characterized in that: described superconduction heat exchange pipe is arranged on described dividing plate with certain gradient, it is indoor that wherein relatively low one end is positioned at cold sand, and higher one end is positioned at hot air chamber。
6. the quick roasting regeneration system of one according to claim 1 energy-saving airduct cooled casting model powder, it is characterized in that: described second heat exchanger adopts pipe heat exchanger, described pipe heat exchanger includes housing, heat exchanger tube, the first smoke inlet, the first outlet flue, the first air inlet and the first gas outlet, one end of described heat exchanger tube is connected with the first air inlet, and the other end of described heat exchanger tube and the first gas outlet are connected。
7. the quick roasting regeneration system of one according to claim 1 energy-saving airduct cooled casting model powder, it is characterized in that: the sidewall of the furnace body of described combustor is provided with several burners, and described burner axis around body of heater on sustained height is evenly arranged, each burner is to obliquely downward flame flame in body of heater and forms vortex gas flow。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018392.9U CN205324623U (en) | 2016-01-08 | 2016-01-08 | Quick calcination regeneration system of energy -saving tuber pipe cooled casting sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018392.9U CN205324623U (en) | 2016-01-08 | 2016-01-08 | Quick calcination regeneration system of energy -saving tuber pipe cooled casting sand |
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| CN205324623U true CN205324623U (en) | 2016-06-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478662A (en) * | 2016-01-08 | 2016-04-13 | 山东金璞新材料有限公司 | Energy saving type air pipe cooling type casting sand rapid roasting and regenerating system |
| CN109434015A (en) * | 2018-11-15 | 2019-03-08 | 重庆长江造型材料（集团）股份有限公司 | A kind of roasting disengaging sand device |
| CN114130948A (en) * | 2021-12-02 | 2022-03-04 | 南通美莱达科技有限公司 | Method for recycling waste ceramsite sand |
-
2016
- 2016-01-08 CN CN201620018392.9U patent/CN205324623U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478662A (en) * | 2016-01-08 | 2016-04-13 | 山东金璞新材料有限公司 | Energy saving type air pipe cooling type casting sand rapid roasting and regenerating system |
| CN109434015A (en) * | 2018-11-15 | 2019-03-08 | 重庆长江造型材料（集团）股份有限公司 | A kind of roasting disengaging sand device |
| CN109434015B (en) * | 2018-11-15 | 2023-12-26 | 重庆长江造型材料（集团）股份有限公司 | Roasting sand feeding and discharging device |
| CN114130948A (en) * | 2021-12-02 | 2022-03-04 | 南通美莱达科技有限公司 | Method for recycling waste ceramsite sand |
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Granted publication date: 20160622 Effective date of abandoning: 20170620 |