CN201988675U - Full-countercurrent heat exchange two-stage waste sand casting roasting furnace - Google Patents

Full-countercurrent heat exchange two-stage waste sand casting roasting furnace Download PDF

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Publication number
CN201988675U
CN201988675U CN2011200151253U CN201120015125U CN201988675U CN 201988675 U CN201988675 U CN 201988675U CN 2011200151253 U CN2011200151253 U CN 2011200151253U CN 201120015125 U CN201120015125 U CN 201120015125U CN 201988675 U CN201988675 U CN 201988675U
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China
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sand
heater
furnace
hypomere
epimere
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CN2011200151253U
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Chinese (zh)
Inventor
熊鹰
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重庆长江造型材料(集团)有限公司
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Priority to CN2011200151253U priority patent/CN201988675U/en
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Publication of CN201988675U publication Critical patent/CN201988675U/en

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Abstract

The utility model discloses a full-countercurrent heat exchange two-stage waste sand casting roasting furnace which comprises an upper section of furnace body, a lower section of furnace body, a sand feeding device arranged at the top of the upper section of furnace body, a sand collecting hopper arranged at the joint of the upper section of furnace body and the lower section of furnace body, a combustion engine and burner as well as an air inlet arranged at the lower section of furnace body, and a lower sand collecting hopper and a sand outlet arranged at the bottom of the lower section of furnace body; a pneumatic sand dividing device is arranged at the upper part of the upper section of furnace body; a furnace heat exchange device is arranged at the lower part of the lower section of furnace body; a temperature sensor is arranged on the lower section of furnace body, or is arranged on the upper section of furnace body and the lower section of furnace body respectively; and the sensing data output end is connected with a data processing control system externally connected with the furnace. The full-countercurrent heat exchange two-stage waste sand casting roasting furnace has the advantages of wide waste sand processing range, high production efficiency, moderate roasting furnace temperature, better-quality and stable reclaimed sand, high exchange efficiency between furnace systems, good utilization of waste sand organic matter and carbon combustion heat, and benefited resource and environment protection.

Description

A kind of full countercurrent heat exchange two-part cast waste sand roaster
Technical field
The utility model relates to roaster, is specifically related to a kind of full countercurrent heat exchange two-part cast waste sand roaster.
Background technology
The utilization again of the cast waste sand of casting industry is paid attention to by countries in the world, but because cast waste sand of a great variety, thereby make its regeneration techniques face very big challenge.Cast waste sand is to contain quartz sand or multiple haydite sand and multiple inorganic matter, also containing multiple metal oxide, metal alloy dust and glomeration, organic binder bond and other organic additives (mainly is various resins, curing agent, curing accelerator, plasticizer, or the like), simple substance carbon element, inorganic binder (mainly be the inorganic matter and the modifier thereof of aluminium-silicon series elements, as bauxite, kaolin, attapulgite, or the like) mixture.Therefore various physicochemical characteristics that the various mixture of this rerum natura has, requires the regeneration treatment technology of cast waste sand to have popularity and adaptability.Hot method treatment technology is a kind of effective technical, and it can satisfy the regeneration of resin type cast waste sand substantially and handle.But existing roaster ubiquity energy resource consumption height, roasting quality is restive, unstable product quality, defective such as disposal ability is less, can not adapt to various antiquated sand kind, and labor intensity of operating staff is big, and environment is relatively poor.Therefore, improving the foundry sand quality and reducing under the prerequisite of regeneration cost, how to utilize heat energy problem, the energy problem that how to save external demand in the cast waste sand roasting process that contained organic matter of cast waste sand and carbon element produced in roasting process, how to reduce the problem of recycling cast waste sand process ambient influnence, or the like, be the great technological difficulties of current casting industry.
Summary of the invention
The purpose of this utility model is just under this technical need; a kind of full countercurrent heat exchange two-part cast waste sand roaster is provided; it has flame waste gas blocking-up burning zone; can satisfy the regeneration of various cast waste sands (resin sand of various coated sands or clay-bonded sand or different proportion and the mixed sand of clay sand) handles; the production efficiency height; control easily; the reclaimed sand quality is good; and can make full use of antiquated sand in organic matter and the heat energy that in roasting process, produced of carbon element; save the external demand energy in the roasting process, help environmental protection.
A kind of full countercurrent heat exchange two-part cast waste sand roaster described in the utility model, comprise the epimere body of heater that is located by connecting on the steelframe and be located by connecting on hypomere body of heater on the base, be located at the exhaust outlet and the sanding device at epimere body of heater top and add sandpipe, be located at the sand collecting hopper of epimere body of heater and hypomere body of heater junction, the combustor that is located at the hypomere upper of furnace body, the burner that is located at hypomere body of heater middle and upper part, the air inlet that is located at hypomere body of heater bottom, the following sand collecting hopper that is located at the hypomere bottom of furnace body and connected sand cooling tube and the sand export of sending, it is characterized in that:
One strength sand separator is located in the top of epimere body of heater and over against sanding device, and this strength sand separator is connected with blast pipe on being located at the epimere body of heater;
Heat-exchanger rig is located in the bottom of hypomere body of heater in one stove, heat-exchanger rig is by air compartment in this stove, the heat exchanger tube that many lower ends and the upper spacer of air compartment are connected and communicate with air compartment, many upper ends connect with the upper spacer of air compartment and with hypomere body of heater inner chamber communicates, air compartment is passed in the lower end lower clapboard and with following sand collecting hopper corresponding go out the sandpipe composition; Air compartment communicates with blower fan, heat exchanger tube and go out the alternate layout of sandpipe, the upper end of every heat exchanger tube is provided with conical cowl, the lower end of every expenditure sandpipe all be located at down sand collecting hopper on to put the sand device corresponding;
Be provided with temperature inductor on the hypomere body of heater, perhaps be respectively equipped with temperature inductor on epimere body of heater and hypomere body of heater, the induction end of temperature inductor is in the stove, and the sensed data output links to each other with the data processing and control system that stove is connected outward.
Described a kind of full countercurrent heat exchange two-part cast waste sand roaster, in described epimere body of heater, be provided with one group of collection/sub-sand device at least and be positioned at the strength sand separator below; Collection/sub-sand device by a sand trap that is funnel type and one and sand trap end opening over against the taper sand separator form.
Described a kind of full countercurrent heat exchange two-part cast waste sand roaster, the furnace wall of its described epimere body of heater and hypomere body of heater constitute or constitute by steel plate, insulation fibre, heat-resistance stainless steel plate from outside to inside by steel plate, insulation fibre, refractory brick from outside to inside.
Described a kind of full countercurrent heat exchange two-part cast waste sand roaster, the diameter of its described epimere body of heater be greater than the diameter of hypomere body of heater, perhaps the equal diameters of the diameter of epimere body of heater and hypomere body of heater.
Described a kind of full countercurrent heat exchange two-part cast waste sand roaster, its described epimere body of heater and hypomere body of heater directly connect as one, and perhaps are connected by flexible structure.
Described a kind of full countercurrent heat exchange two-part cast waste sand roaster, its described flexible structure is mazy hermetically-sealed construction, and promptly the convex-concave structure that has of epimere body of heater lower end and hypomere body of heater upper end has the structure of the mutual chimeric formation of corresponding concaveconvex structure.Adopt this labyrinth seal structure, the airtight sealing that has, guarantee that the in-furnace sand grain does not flow out on the one hand, furnace pressure can guarantee, can also make because the upper and lower section different structural stress that join of installing of furnace diameter, make whole body of heater can in furnace temperature constantly changes, not produce new structural stress, thereby guaranteed that body of heater is more stable.
Described a kind of full countercurrent heat exchange two-part cast waste sand roaster is provided with a combustor at least on the top of hypomere body of heater, has three burners at least in the middle and upper part of hypomere body of heater.
Described a kind of full countercurrent heat exchange two-part cast waste sand roaster, the drive motors that its described sanding device comprises the gear that is located by connecting on epimere body of heater top, is connected with gear, the output shaft of gear stretches in the stove with the upper end of the universal driving shaft of the loading hopper mechanism that links and is connected, and the lower end of universal driving shaft is connected with loading hopper.
Described a kind of full countercurrent heat exchange two-part cast waste sand roaster, its described strength sand separator comprises the blast pipe, the remittance air chamber that communicates with blast pipe that pass epimere body of heater furnace wall, be located at the sub-sand taper seat that converges on the air chamber and be positioned at the loading hopper below, and a plurality of blast caps that are located on the sub-sand taper seat are corresponding one by one with the top a plurality of escape pipes that are located at the remittance air chamber.
The Compressed Gas that enters from blast pipe is through converging each little air chamber of air chamber, and by superincumbent a plurality of discharge pipe is installed, the blast cap above discharge pipe and the ejection that scatters acts on the cast waste sand of whereabouts again disperses it and slow whereabouts.
The utility model is compared with prior art and had the following advantages: it is wider to handle antiquated sand, the production efficiency height; The roasting furnace temperature is moderate, reclaimed sand better quality and stable; Heat exchanger effectiveness height between system in the stove, the antiquated sand organic matter and the carbon element combustion heat are made good use of, and the energy resource consumption that makes ton cast waste sand is than low 1~3 times of general cast waste sand thermal reclamation treatment system; Help resource and environmental protection.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the labyrinth seal structure schematic diagram of epimere body of heater and hypomere body of heater junction;
Fig. 3 is the schematic diagram of the equal utility model of epimere body of heater and hypomere furnace diameter;
Fig. 4 is the schematic diagram of sanding device;
Fig. 5 is the schematic diagram of strength sand separator;
Fig. 6 is the schematic diagram of the heat exchanger tube of heat-exchanger rig in the stove.
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Embodiment one: referring to Fig. 1, Fig. 2 and a kind of full countercurrent heat exchange two-part cast waste sand roaster shown in Figure 6 comprise epimere body of heater 3 that is located by connecting on the steelframe 4 and the hypomere body of heater 6 that is located by connecting on the base 10, be located at the exhaust outlet 2 and the sanding device 21 at epimere body of heater top and add sandpipe 1, be located at the sand collecting hopper 22 of epimere body of heater and hypomere body of heater junction, be located at three combustors 18 of hypomere upper of furnace body, be located at three burners 7 of hypomere body of heater middle and upper part, be located at the air inlet 17 of hypomere body of heater bottom, be located at the following sand collecting hopper 13 and the connected sand cooling tube 16 and the sand export 14 of sending of hypomere bottom of furnace body;
One strength sand separator 20 is located in the top of epimere body of heater 3 and over against sanding device 21, and this strength sand separator is connected with blast pipe 20-1 on being located at the epimere body of heater;
Heat-exchanger rig is located in the bottom of hypomere body of heater 6 in one stove, heat-exchanger rig is by air compartment 9 in this stove, many the heat exchanger tubes 8 that the lower end is connected with the upper spacer of air compartment and communicates with air compartment, many upper ends connect with the upper spacer of air compartment and with hypomere body of heater inner chamber communicates, air compartment is passed in the lower end lower clapboard and with following sand collecting hopper 13 corresponding go out sandpipe 11 compositions; Air compartment 9 communicates with blower fan, heat exchanger tube and go out the alternate layout of sandpipe, the upper end of every heat exchanger tube 8 is provided with conical cowl 23, the lower end of every expenditure sandpipe 11 all be located at down sand collecting hopper 13 on to put sand device 12 corresponding;
Be provided with temperature inductor 24 on the hypomere body of heater, the induction end of temperature inductor is in the stove, and the sensed data output links to each other with the data processing and control system that stove is connected outward;
In described epimere body of heater 3, be provided with two groups of collection/sub-sand device at least and be positioned at strength sand separator 20 below, collection/sub-sand device by a sand trap 19 that is funnel type and one and sand trap end opening over against taper sand separator 25 form;
The epimere body of heater 3 that this is routine and the furnace wall of hypomere body of heater 6 constitute by steel plate, insulation fibre, refractory brick from outside to inside, and the diameter of epimere body of heater is greater than the diameter of hypomere body of heater.Described epimere body of heater is connected by flexible structure 5 with the hypomere body of heater; Described flexible structure is mazy hermetically-sealed construction, and promptly the convex-concave structure that has of epimere body of heater lower end and hypomere body of heater upper end has the structure of the mutual chimeric formation of corresponding concaveconvex structure.
The drive motors 21-1 that comprises the gear 21-2 that is located by connecting on epimere body of heater top, is connected with gear referring to sanding device shown in Figure 4 21, the output shaft of gear stretches in the stove with the upper end of the universal driving shaft 21-3 of the loading hopper mechanism that links and is connected, and the lower end of universal driving shaft is connected with loading hopper 21-4.
Comprise the blast pipe 20-1, the remittance air chamber 20-2 that communicates with blast pipe that pass epimere body of heater 3 furnace walls, be located at the sub-sand taper seat 20-3 that converges on the air chamber and be positioned at loading hopper 21-4 below referring to strength sand separator 20 shown in Figure 5, a plurality of blast cap 20-4 that are located on the sub-sand taper seat are corresponding one by one with the top a plurality of escape pipe 20-5 that are located at the remittance air chamber.
Embodiment two: referring to Fig. 3, the epimere body of heater 3 that this is routine and the furnace wall of hypomere body of heater 6 constitute by steel plate, insulation fibre, heat-resistance stainless steel plate from outside to inside, the equal diameters of the diameter of epimere body of heater 3 and hypomere body of heater 6, epimere body of heater and hypomere body of heater directly connect as one, be respectively equipped with temperature inductor 24 on epimere body of heater and hypomere body of heater, all the other are identical with embodiment one.Therefore the body of heater of this spline structure has heat insulation, good heat insulating, and long service life when helping improving in the stove heat energy utilization rate, realizes non-maintaining.
During the utility model work, cast waste sand adds sandpipe and sentences and have certain whereabouts kinetic energy and be added into from being in the epimere body of heater, when being in the compressed air that strength sand separator when top and strength sand separator blow out, knockout meets, knockout is subjected to the speed that can slow down behind the moving air opposite with falling direction and, and the little knockout of a part of sand grains diameter is just upwards held up in the overhead higher position of the conical surface on the strength sand separator and directly is and flies away shape in furnace inner space descends slowly and lightly sand trap to strength sand separator one.Because make progress the wind-force reason, the falling speed of this part knockout slows down, and makes this part sand grains by the full and uniform rapid heating of hot-air in the stove; The antiquated sand that all the other particle diameters are bigger partly drops to the conical surface on more close (until dropping to) strength sand separator, blast cap mouth place wind-force on the conical surface on the strength sand separator is big more, this part knockout is upwards blown afloat, on the conical surface on the strength sand separator, form the gas sand mixing shape that turbulence is seethed, the antiquated sand that rises to upper lateral part space around the strength sand separator is space around the center disperses to trickle down in stove with strength sand separator one, fall into the sand trap of below, because the effect of sand separator, antiquated sand fully disperses in the epimere stove, the slow whereabouts that disperses, the abundant antiquated sand that disperses contacts more abundant with hot-air in the stove, the heat transfer sheet area is bigger, and heat exchange is more full and uniform.The antiquated sand that drops in the sand trap evenly glides along table inclined-plane in the sand trap, sand trap conical surface end opening sentence flow under the uniform yarn curtain next group sand separator on the conical surface, the reciprocal so repeatedly sub-sand that passes through, collection sand, sub-sand, delay antiquated sand widely and fallen into the interior duration of hypomere body of heater roast area, antiquated sand utilizes the heat of combustion product gases by preheating fully, eliminate the moisture and the low melting point volatile materials that contain in the antiquated sand, the phenomenon of having avoided organic being carbonized and having made sand grains be bonded to piece mutually takes place, make full use of the high-temperature flue gas heat that roast area produces in the hypomere body of heater, improved the sand temperature that antiquated sand enters hypomere body of heater zone, making antiquated sand enter the basic ignition temperature that roasting needs in the hypomere body of heater is guaranteed, avoided hypomere body of heater internal combustion machine because furnace temperature fluctuation fluctuating frequent starting consume fuel has realized energy savings, prevent caking, guarantee the good suitable combustion material state that the antiquated sand calcination process is preceding.
Antiquated sand space in flexible apparatus behind the sub-sand of epimere body of heater whereabouts enters in the hypomere body of heater, because of in the epimere body of heater by abundant preheating, through being installed on the hypomere body of heater be positioned at burner combustion mouth sectional space below the sand trap time and burner combustion flame meet, reach burning-point rapidly and burn attached to the organic matter of sand grain surface or carbon element, the heat that burner fuel burning provides adds the heat that organic matter that antiquated sand contains and carbon element burning produce, make temperature rising in the hypomere stove, when reaching in the stove when can complete roasting falling contained organic matter of antiquated sand and the above temperature of carbon element, be installed in the data-signal that the temperature inductor at hypomere body of heater middle part measures and just provide data to the computer chip that is attached thereto (PLC) control system by its data sending terminal, control system can accuse when coupled burner is adjusted duty, adjust with the epimere stove join add the sand mouth add the sand state, go out the duty of the mouth that shakes out of sandpipe sand export end.Kept the interior sintering temperature of stove moderate, avoided causing that temperature continues to rise too high in the stove, caused that the metal oxide Xing Cheng Erization thing that contains in the antiquated sand, the phenomenon that metallic dust was sintered, formed caking take place because heat is excessive.When being in, the state of burner closes fire not during the burning-point state, the heat that organic matter of lighting in the antiquated sand and carbon element burning are sent makes the interior temperature maintenance of hypomere body of heater under the uniform temperature condition, when furnace temperature can not be kept, in stove under the real-time observing and controlling of temperature inductor, the outer control of stove system will send regulation and control instruction to its each RACS simultaneously, and the hypomere stove is remained under the suitable reclaimed sand treatment technology state.Antiquated sand sand grains after the burning falls in the hypomere body of heater and in the space between heat exchanger tube, is piled into the layer of sand that is higher than heat exchanger tube height in the stove gradually, and the red-hot layer of sand of this floor height temperature is by the chilled air cools that blows out in heat exchanger tube air outlet blast cap.Compressed air in the heat exchanger tube comes from the blast pipe of the air compartment that links to each other with the hypomere body of heater, blast pipe links to each other with the high pressure positive blower of outside, the blast pipe of the compressed air of high pressure positive blower through linking to each other with air compartment enters air compartment, in air compartment through the wind speed adjustment, pressure allotment back enters and arrives heat exchanger tube blast cap air outlet in the hypomere body of heater from the heat exchange mouth of pipe that communicates with air compartment, enter and form thermal convection current between compressed air and the heat exchanger tube inwall in the heat exchanger tube and concern and heated rapidly, make the cooling of heat exchange tube wall on the one hand, the temperature of the outer red-hot layer of sand of high temperature of heat exchanger tube is reduced, bottom the closer to heat exchanger tube, the sand temperature is low more, mouth of pipe sand temperature is minimum relatively shaking out, enter out sandpipe at this through sand grains with the heat exchanger tube sufficient heat exchange, with go out the mouth that shakes out that sandpipe links to each other and go out to be discharged into down in the sand collecting hopper, the sand grains that enters down sand collecting hopper has been finished the roasting regeneration process, be released to outside the roaster by putting the sand mouth, for subsequent treatment or use.Aspect in addition, enter cold air in the heat exchanger tube from heat exchanger tube inlet, promptly heated, by heat exchanger tube blast cap outlet progressively the becoming higher hot compressed air of temperature that enters the mouth by convective heat exchange, and, pass the space between the red-hot layer of sand sand grains of high temperature in the ejection of heat exchanger tube blast cap air outlet place.Turbulence takes place because of being subjected to the change at random of crossing the wind passage that the space forms between sand grains in the pressure-air that enters in the layer of sand, stirs layer of sand top and is the shape that rolls that seethes with excitement, and reduces the sand temperature; Moreover; compressed air after being heated by red-hot sand grains continues to carry to the hypomere upper of furnace body; when compressed air is crossed flexible apparatus that hypomere body of heater and epimere body of heater join and is entered in the epimere furnace space; because the furnace diameter of epimere stove is greater than hypomere body of heater stove interior diameter; therefore the velocity of compressed air that upwards flows can slow down; make the space in two sections stoves form the furnace pressure minus tolerance; the state variation of system is installed in this stove; different temperature inductor image data on the hypomere body of heater; regulate and control by the control system that stove is attached thereto outward; flue gas organic and that the carbon element burning forms can relatively stay for some time in the epimere furnace space more in the hypomere body of heater like this; reduce the not fully organic generation of the gas phase of oxidation in the flue gas on the one hand; the aspect is by contacting the longer time with the new antiquated sand of lower temperature that adds the adding of sand mouth in addition; fully carry out heat exchange; reduced the temperature of the smokejack outlet flue gas that links to each other with the epimere body of heater rapidly; avoid that the exhaust opening flue gas flow rate is too fast takes away more antiquated sand dust and to the generation of environment harmful gas bioxin; energy savings helps environmental protection more more.

Claims (9)

1. full countercurrent heat exchange two-part cast waste sand roaster, comprise the epimere body of heater (3) that is located by connecting on the steelframe (4) and be located by connecting on hypomere body of heater (6) on the base (10), be located at the exhaust outlet (2) and the sanding device (21) at epimere body of heater top and add sandpipe (1), be located at the sand collecting hopper (22) of epimere body of heater and hypomere body of heater junction, be located at the combustor (18) of hypomere upper of furnace body, be located at the burner (7) of hypomere body of heater middle and upper part, be located at the air inlet (17) of hypomere body of heater bottom, be located at the following sand collecting hopper (13) and the connected sand cooling tube (16) and the sand export (14) of sending of hypomere bottom of furnace body, it is characterized in that:
One strength sand separator (20) is located in the top of epimere body of heater (3) and over against sanding device (21), and this strength sand separator is connected with blast pipe on being located at the epimere body of heater;
Heat-exchanger rig is located in the bottom of hypomere body of heater (6) in one stove, heat-exchanger rig is by air compartment (9) in this stove, many the heat exchanger tubes (8) that the lower end is connected with the upper spacer of air compartment and communicates with air compartment, many upper ends connect with the upper spacer of air compartment and with hypomere body of heater inner chamber communicates, air compartment is passed in the lower end lower clapboard and with following sand collecting hopper (13) corresponding go out sandpipe (11) composition; Air compartment (9) communicates with blower fan, heat exchanger tube and go out the alternate layout of sandpipe, the upper end of every heat exchanger tube (8) is provided with conical cowl (23), the lower end of every expenditure sandpipe (11) all be located at down sand collecting hopper (13) on to put sand device (12) corresponding;
Be provided with temperature inductor (24) on the hypomere body of heater, perhaps be respectively equipped with temperature inductor (24) on epimere body of heater and hypomere body of heater, the induction end of temperature inductor is in the stove, and the sensed data output links to each other with the data processing and control system that stove is connected outward.
2. a kind of full countercurrent heat exchange two-part cast waste sand roaster according to claim 1 is characterized in that: be provided with one group of collection/sub-sand device at least and be positioned at the below of strength sand separator (20) in described epimere body of heater (3); Collection/sub-sand device by a sand trap (19) that is funnel type and one and sand trap end opening over against taper sand separator (25) form.
3. a kind of full countercurrent heat exchange two-part cast waste sand roaster according to claim 1 and 2 is characterized in that: the furnace wall of described epimere body of heater (3) and hypomere body of heater (6) constitutes or constitutes by steel plate, insulation fibre, heat-resistance stainless steel plate from outside to inside by steel plate, insulation fibre, refractory brick from outside to inside.
4. a kind of full countercurrent heat exchange two-part cast waste sand roaster according to claim 1 and 2, it is characterized in that: the diameter of described epimere body of heater (3) is greater than the diameter of hypomere body of heater (6), perhaps the equal diameters of the diameter of epimere body of heater (3) and hypomere body of heater (6).
5. a kind of full countercurrent heat exchange two-part cast waste sand roaster according to claim 1 and 2, it is characterized in that: described epimere body of heater and hypomere body of heater directly connect as one, and perhaps are connected by flexible structure (5).
6. a kind of full countercurrent heat exchange two-part cast waste sand roaster according to claim 5, it is characterized in that: described flexible structure (5) is for mazy hermetically-sealed construction, promptly has the structure of the mutual chimeric formation of corresponding concaveconvex structure on the convex-concave structure that has of epimere body of heater (3) lower end and the hypomere body of heater (6).
7. a kind of full countercurrent heat exchange two-part cast waste sand roaster according to claim 1 and 2, it is characterized in that: be provided with a combustor (18) at least on the top of hypomere body of heater (6), have three burners (7) in the middle and upper part of hypomere body of heater at least.
8. a kind of full countercurrent heat exchange two-part cast waste sand roaster according to claim 1 and 2, it is characterized in that: the drive motors (21-1) that described sanding device (21) comprises the gear (21-2) that is located by connecting on epimere body of heater top, is connected with gear, the output shaft of gear stretches in the stove with the upper end of the universal driving shaft (21-3) of the loading hopper mechanism that links and is connected, and the lower end of universal driving shaft is connected with loading hopper (21-4).
9. a kind of full countercurrent heat exchange two-part cast waste sand roaster according to claim 1 and 2, it is characterized in that: described strength sand separator (20) comprises the blast pipe (20-1), the remittance air chamber (20-2) that communicates with blast pipe that pass epimere body of heater (3) furnace wall, be located at the sub-sand taper seat (20-3) that converges on the air chamber and be positioned at loading hopper (21-4) below, and a plurality of blast caps (20-4) that are located on the sub-sand taper seat are corresponding one by one with the top a plurality of escape pipes (20-5) that are located at the remittance air chamber.
CN2011200151253U 2010-12-17 2011-01-18 Full-countercurrent heat exchange two-stage waste sand casting roasting furnace CN201988675U (en)

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CN201010593752 2010-12-20
CN2011200151253U CN201988675U (en) 2010-12-17 2011-01-18 Full-countercurrent heat exchange two-stage waste sand casting roasting furnace

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CN102125982A (en) * 2010-12-20 2011-07-20 重庆长江造型材料(集团)有限公司 Full-counterflow heat exchange two-section type casting waste sand roasting furnace
CN103286260A (en) * 2013-06-03 2013-09-11 青岛天恒机械有限公司 Pre-coated sand regeneration system energy recovery method

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CN103307881B (en) * 2013-06-09 2015-07-01 重庆长江造型材料(集团)股份有限公司 Multi-section type roasting furnace provided with platform
CN103894538B (en) * 2014-04-24 2015-11-18 青岛大学 Precoated sand thermal reclamation equipment and renovation process thereof
CN108840702B (en) * 2018-08-10 2020-12-01 新疆天物生态科技股份有限公司 Ceramsite containing gasification furnace slag and preparation method thereof

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CN2326354Y (en) * 1997-09-18 1999-06-30 西安建筑科技大学 Fixed wall cyclone pneumatic grader
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CN2859431Y (en) * 2005-12-21 2007-01-17 熊鹰 Intermittent combustion casting waste sand roasting furnace
CN201411256Y (en) * 2009-06-12 2010-02-24 江苏牧羊集团有限公司 Rotation material distributing mechanism
CN201988675U (en) * 2010-12-17 2011-09-28 重庆长江造型材料(集团)有限公司 Full-countercurrent heat exchange two-stage waste sand casting roasting furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102125982A (en) * 2010-12-20 2011-07-20 重庆长江造型材料(集团)有限公司 Full-counterflow heat exchange two-section type casting waste sand roasting furnace
CN102125982B (en) * 2010-12-20 2013-03-27 重庆长江造型材料(集团)有限公司 Full-counterflow heat exchange two-section type casting waste sand roasting furnace
CN103286260A (en) * 2013-06-03 2013-09-11 青岛天恒机械有限公司 Pre-coated sand regeneration system energy recovery method

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CN102125982B (en) 2013-03-27

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