CN104789761A - Reduced iron efficient cooling and waste heat recovery device - Google Patents
Reduced iron efficient cooling and waste heat recovery device Download PDFInfo
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- CN104789761A CN104789761A CN201510153830.2A CN201510153830A CN104789761A CN 104789761 A CN104789761 A CN 104789761A CN 201510153830 A CN201510153830 A CN 201510153830A CN 104789761 A CN104789761 A CN 104789761A
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Abstract
The invention discloses a reduced iron efficient cooling and waste heat recovery device mainly used for performing cooling and waste heat recovery on reduced iron pellets and sintered pellets in metallurgical mine industry. The device comprises a discharging chute (1) and a rotary cooling barrel body (3) arranged transversely, wherein the rotary cooling barrel body (3) comprises a cooling barrel body (301); a circulation cooling heat exchange mechanism is arranged on the inner wall of the cooling barrel body (301) and connected with a main water supply pipe (309) and a main water return pipe (310); an evaporator (4) is further arranged on the inner side of the cooling barrel body (301). The circulation cooling heat exchange mechanism is used for exchanging heat with high-temperature materials in the cooling barrel body (301) to cool the materials and cooling the inner wall of the cooling barrel body (301) at the same time, so that the temperature of the barrel body can be effectively reduced; the evaporator (4) is adopted for absorbing radiant heat of the materials, so that a cooling effect is improved; moreover, the evaporator (4) can be combined with a steam pocket to generate steam, so that efficient utilization of waste heat is realized.
Description
Technical field
A kind of reduced iron high efficiency cooling and waste-heat recovery device, be mainly used in cooling and waste heat recovery reduced iron pelletizing, agglomerates of sintered pellets in metallurgical mine industry.
Background technology
Cooling is one of operation of calcining reduction iron process.The temperatures as high 1100 DEG C that direct-reduced iron pelletizing exports through rotary hearth furnace or rotary kiln, major part Iron And Steel Company adopts rotation drum type cooling machine to cool high temperature pelletizing: high temperature pelletizing enters the cooling cylinder with inclination angle through chute, cooling cylinder rotates, and material moves to discharge end by feed end; The direct spray cylinder external body of water coolant is adopted to reach cooling performance.This type of cooling comes with some shortcomings: (1) heat transfer type is based on the thermal conduction between material and cylindrical shell and the thermal convection between water coolant and cylindrical shell, and complex heat transfer coefficient is lower; (2) cylindrical shell is when turning round, and the easy cylinder body bottom of material slides, and the transmission of heat by contact area ratio between material and cylindrical shell is less; (3) caloric requirement of material passes to water coolant through cylindrical shell, and because the wall thickness of cylindrical shell is comparatively large, thus barrel temperature is higher, distortion is serious; (4) sensible heat of material does not reclaim.Because cooling efficiency is low, the length of cylindrical shell is very large, and generally reach 30 ~ 40m, facility investment is higher, and floor space is very large; Water spray is also very large, reaches 400m
3/ more than h, consumes a large amount of water.CN101787435A discloses " efficient spray rotation drum type cooling machine for reduced iron ", and its cylindrical shell forms by cooling cylindrical shell, front end cylindrical shell and tail end cylindrical shell; Front end cylindrical shell and tail end cylindrical shell are double-layer barrel, in this double-layer barrel, adopt spray cooling; The drum surface of whole cooling unit is covered by spray cooling.Because whole cylindrical shell is atomized water droplet parcel, effectively protect cylindrical shell, reduce distortion, also improve operating rate and the reliability of equipment.But this technology is not improved the material movement of inner barrel and heat transfer situation, the sensible heat of material does not also reclaim.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provide that a kind of heat transfer intensity is large, good cooling results, can the reduced iron high efficiency cooling of recovered material sensible heat and waste-heat recovery device.
The technical solution adopted for the present invention to solve the technical problems is: this reduced iron high efficiency cooling and waste-heat recovery device, comprise the revolution cooling cylindrical shell of feeding chute and arranged transversely, the feed end of revolution cooling cylindrical shell is sealed by entrance lock, feeding chute enters in revolution cooling cylindrical shell through entrance lock, the discharge end sealing of revolution cooling cylindrical shell is fixed with discharging bin, entrance lock and discharging bin are fixedly installed, revolution cooling cylindrical shell is connected with the cylindrical shell rotary drive mechanism driving it to rotate, discharging bin bottom is provided with feed opening, it is characterized in that: described revolution cooling cylindrical shell comprises cooling cylindrical shell, circulating cooling heat exchange mechanisms is provided with at the inwall of cooling cylindrical shell, circulating cooling heat exchange mechanisms is connected with water main and return main, also vaporizer is provided with in the inner side of cooling cylindrical shell.Circulating cooling heat exchange mechanisms and the high-temperature material heat exchange in cooling cylindrical shell, cooling material, the sidewall of cooling cylindrical shell is cooled simultaneously, effectively can reduce the temperature of cylindrical shell, reduce distortion, be provided with vaporizer in the inner side of cooling cylindrical shell, vaporizer is adopted to absorb the radiant heat of material, improve cooling performance, and vaporizer can combine with drum generation steam, realizes the efficiency utilization of waste heat.
Preferably, described circulating cooling heat exchange mechanisms is formed in the inner side of cooling cylindrical shell and promotes the concaveconvex structure of material with cooling barrel body rotation.Just fall after making material turn to certain altitude with cooling cylindrical shell, avoid material in cooling cylindrical shell rotation process cooling cylindrical shell basal sliding, thus increase effectively the contact area between material and circulating cooling heat exchange mechanisms, improve heat exchange efficiency.Existing cooling cylindrical shell arranges helical fin and advances to promote material in inner side, but helical fin is promote material to move axially, material remains slip at cooling cylindrical shell smooth inwall, material remains the bottom concentrating on cooling cylindrical shell, cannot rotate with cooling cylindrical shell, described concaveconvex structure well solves this problem, but also enhances the blending of material.。
Preferably, described circulating cooling heat exchange mechanisms comprises the first cooling duct and the second cooling duct, wherein the first cooling duct is fixedly connected with cooling cylinder inboard wall, reversing mechanism is provided with at the feed end of cooling cylindrical shell, hydroseparator structure is provided with and the mechanism that catchments at the discharge end of cooling cylindrical shell, the two ends of the first cooling duct are communicated with hydroseparator structure and reversing mechanism respectively, hydroseparator structure connects water main, the two ends of the second cooling duct are communicated with reversing mechanism and the mechanism that catchments respectively, the mechanism that catchments is connected with return main, heat-eliminating medium in water main is sent into the first cooling duct by hydroseparator structure, heat-eliminating medium in first cooling duct enters the second cooling duct by reversing mechanism, heat-eliminating medium in second cooling duct is successively through mechanism and the return main's discharge of catchmenting.
First cooling duct and/or the second cooling duct form the concaveconvex structure promoting material and rotate with cooling cylindrical shell at cooling cylinder inboard wall.Material in cooling cylindrical shell rotation process is avoided in the basal sliding of cooling cylindrical shell, just to fall after making material turn to certain altitude with cooling cylindrical shell, thus increase effectively the contact area between material and circulating cooling heat exchange mechanisms, improve heat exchange efficiency.
Preferably, described first cooling duct is arranged on the multiple cooling half pipes on cooling cylinder inboard wall, and cooling half pipe forms coolant flow channel with cooling cylinder inboard wall consolidation.While high-temperature material heat exchange, cooling half pipe cools cooling cylindrical shell, prevents cooling cylinder body deformability, improves work-ing life.
Preferably, the second cooling duct is arranged on the multiple round cooling inside circumgyration body that multiple cooling half pipe surrounds.Round cooling can be deep into material bed inside, decrease the heat transfer distances of material, enhance heat transfer effect, and round cooling is distributed in different radial heights from cooling half pipe, further formation promotes material with the concaveconvex structure that rotates of cooling cylindrical shell, more effectively promotes material and rotates with cooling cylindrical shell, and material rises to certain altitude with cooling barrel body rotation and sheds and fall, produce certain convective heat exchange between material and round cooling, also provide enhanced the blending of material simultaneously.
Preferably, described water main and return main are positioned on the axis of cooling cylindrical shell discharge end, and return main is positioned at the inside of water main, water main is communicated with hydroseparator structure by radial water inlet pipe, return main is communicated with the mechanism that catchments by radial return water pipe, and water main, return main are connected with swivel joint through discharging bin end.
Preferably, described hydroseparator structure is point water semicanal that annular is arranged on cooling cylindrical shell discharge end inwall, and point water semicanal forms water annulus with cooling cylinder inboard wall consolidation;
Reversing mechanism is the changed course semicanal that annular is arranged on the inwall of cooling cylindrical shell feed end, and changed course semicanal forms water annulus with cooling cylinder inboard wall consolidation;
The described mechanism that catchments is the collection pipe that annular is arranged on cooling cylindrical shell discharge end.
Preferably, cylindrical shell rotary drive mechanism comprises support roller support assembly and drives assembly, the outside wall surface of cooling cylindrical shell is provided with two annular wheel belt and an annular cingulum, and two described support roller support assemblies support cooling cylindrical shell by wheel belt, drive the output terminal of assembly by gears meshing cingulum; The center cross-sectional of a wheel belt overlaps with the center cross-sectional of changed course semicanal, and the center cross-sectional of another wheel belt overlaps with the center cross-sectional of point water semicanal.Can wheel belt be cooled in changed course semicanal and point water semicanal, avoid the tugboat overtemperature of tugboat support assembly.Therefore the present invention efficiently solves cooling cylindrical shell and the high temperature deformation of tugboat and the problem of damage, improves equipment work reliability and work-ing life.
Preferably, described vaporizer is arranged on the feed end in cooling cylindrical shell, vaporizer is made up of a lower header, upper collecting chamber, a multiple generating tube, the upper collecting chamber being positioned at vaporizer top stretches out entrance lock with the front end of the lower header being positioned at vaporizer bottom and is fixedly connected with entrance lock, upper collecting chamber and lower header end header shrouding are blocked, many generating tubes are arranged between upper collecting chamber and lower header, and the two ends of generating tube communicate with upper collecting chamber and lower header consolidation respectively.Reduced iron pelletizing is temperatures as high 1100 DEG C when entering cooling cylindrical shell, and its radiant heat is very large, and feed end vaporizer being arranged on cooling cylindrical shell can efficient recovery heat.
Preferably, the axis of described lower header is inclined upwardly to cooling cylindrical shell by entrance lock, and the axis of upper collecting chamber is downward-sloping to cooling cylindrical shell by entrance lock.Water enters generating tube by lower header, and in generating tube, heat absorption becomes steam-water twin phases mixture, and then enter upper collecting chamber, lower header and upper collecting chamber are all inclined upwardly along medium flowing direction, are conducive to medium flowing, avoid producing vapour lock in vaporizer.
Preferably, described entrance lock is the head cylindrical shell that front end is closed, end is deep into cooling cylindrical shell feed end inside, is provided with lock packing, lock packing is compressed with the first gland in the annulus that head cylindrical shell and cooling cylindrical shell are formed; Feeding chute is deep in space that the first cooling duct and the second cooling duct surround from outside, the front end of head cylindrical shell through head cylindrical shell;
Head cylindrical shell comprises head outer cylinder body, head inner barrel, outer end plate, inner end plate and ring sealing plate, head inner barrel is positioned at the inside of head outer cylinder body, head outer cylinder body front end is provided with outer end plate and consolidation sealing, head inner barrel front end is provided with inner end plate and consolidation sealing, annulus end between head outer cylinder body and head inner barrel is provided with ring sealing plate, head outer cylinder body, head inner barrel, outer end plate, inner end plate surround a water-cooling jacket together with ring sealing plate, be provided with water inlet pipe in described water-cooling jacket bottom, top is provided with rising pipe.
Preferably, on the downside of feed opening, discharge valve is fixedly connected with.Discharge valve can make to form certain material envelope in feed opening, and thus whole equipment good airproof performance, efficiently solves the high temperature oxidation problem of reduced iron pelletizing.
Compared with prior art, the beneficial effect that reduced iron high efficiency cooling of the present invention and waste-heat recovery device technique scheme have is:
1, circulating cooling heat exchange mechanisms and the high-temperature material heat exchange in cooling cylindrical shell, cooling material, the sidewall of cooling cylindrical shell is cooled simultaneously, effectively can reduce the temperature of cylindrical shell, reduce distortion, adopt vaporizer to absorb the radiant heat of material, improve cooling performance, and vaporizer can combine with drum generation steam, realize the efficiency utilization of waste heat.
2, heat interchanging area is added by the first cooling duct and the second cooling duct, and utilize hydroseparator structure that the heat-eliminating medium in water main is evenly sent into the first cooling duct, reversing mechanism accepts the heat-eliminating medium in the first cooling duct and is delivered in the second cooling duct, structure is simple, and hydroseparator structure is cooling the same end of cylindrical shell with the organization establishes that catchments, thus be convenient to water main and return main are arranged on the same end of cooling cylindrical shell, structure is simple, easy for installation, avoid water main, return main and feeding chute, the installation of vaporizer produces to be interfered mutually.
3, round cooling can be deep into material bed inside, decrease the heat transfer distances of material, enhance heat transfer effect, and round cooling is distributed in different radial heights from cooling half pipe, the further concaveconvex structure forming promotion material and rotate with cooling cylindrical shell, more effectively promote material to rotate with cooling cylindrical shell, material rises to certain altitude with cooling barrel body rotation and sheds and fall, produce certain convective heat exchange between material and round cooling, also provide enhanced the blending of material simultaneously.
4, alter course and can cool wheel belt in semicanal and point water semicanal, avoid the tugboat overtemperature of tugboat support assembly.Therefore the present invention efficiently solves cooling cylindrical shell and the high temperature deformation of tugboat and the problem of damage, improves equipment work reliability and work-ing life.
5, water enters generating tube by lower header, and in generating tube, heat absorption becomes steam-water twin phases mixture, and then enter upper collecting chamber, lower header and upper collecting chamber are all inclined upwardly along medium flowing direction, are conducive to medium flowing, avoid producing vapour lock in vaporizer.
6, adopt water coolant to cool head cylindrical shell, reduce the distortion of head cylindrical shell, improve the reliability of sealing and the work-ing life of head cylindrical shell.
Accompanying drawing explanation
Fig. 1 is the structural representation of this reduced iron high efficiency cooling and waste-heat recovery device embodiment 1.
Fig. 2 is the sectional view at A-A place in Fig. 1.
Fig. 3 is I place partial enlarged drawing in Fig. 1.
Fig. 4 is J place partial enlarged drawing in Fig. 1.
Fig. 5 is K place partial enlarged drawing in Fig. 1.
Fig. 6 is the structural representation of this reduced iron high efficiency cooling and waste-heat recovery device embodiment 2.
Wherein: 1, feeding chute 2, head cylindrical shell 201, head inner barrel 202, head outer cylinder body 203, water inlet pipe 204, ring sealing plate 205, inner end plate 206, outer end plate 207, rising pipe 3, revolution cooling cylindrical shell 301, cooling cylindrical shell 302, changed course semicanal 303, cooling half pipe 304, round cooling 305, radial return water pipe 306, collection pipe 307, radial water inlet pipe 308, divide water semicanal 309, water main 310, return main 311, water main's shrouding 312, return main's shrouding 313, wheel belt 314, cingulum 315, shell flange 316, cooling backwater semicanal 317, charge for remittance semicanal 4, vaporizer 401, lower header 402, upper collecting chamber 403, generating tube 404, header shrouding 5, discharging bin 501, discharging bin cylindrical shell 502, discharging bin end plate 503, feed opening 504, discharging bin flange 505, baffle plate 6, swivel joint 7, discharge valve 8, tugboat support assembly 9, drive assembly 10, first bolt 11, first gland 12, first nut 13, lock packing 14, second bolt 15, second gland 16, second nut 17, 3rd bolt 18, 3rd gland.
Embodiment
Fig. 1 ~ 5 are most preferred embodiments of this reduced iron high efficiency cooling and waste-heat recovery device, and below in conjunction with accompanying drawing 1 ~ 6, the present invention will be further described.
With reference to Fig. 1 ~ 2, this reduced iron high efficiency cooling and waste-heat recovery device, comprise the revolution cooling cylindrical shell 3 of feeding chute 1 and arranged transversely, the feed end of revolution cooling cylindrical shell 3 is sealed by entrance lock, feeding chute 1 enters in revolution cooling cylindrical shell 3 through entrance lock, the discharge end sealing of revolution cooling cylindrical shell 3 is fixed with discharging bin 5, entrance lock and discharging bin 5 are fixedly installed, revolution cooling cylindrical shell 3 is connected with the cylindrical shell rotary drive mechanism driving it to rotate, discharging bin 5 bottom is provided with feed opening 503, described revolution cooling cylindrical shell 3 comprises cooling cylindrical shell 301, circulating cooling heat exchange mechanisms is provided with at the inwall of cooling cylindrical shell 301, circulating cooling heat exchange mechanisms is connected with water main 309 and return main 310, vaporizer 4 is also provided with in the inner side of cooling cylindrical shell 301.Circulating cooling heat exchange mechanisms and the high-temperature material heat exchange in cooling cylindrical shell 301, cooling material, the sidewall of cooling cylindrical shell 301 is cooled simultaneously, effectively can reduce the temperature of cylindrical shell, reduce distortion, adopt vaporizer 4 to absorb the radiant heat of material, improve cooling performance, and vaporizer 4 can combine with drum generation steam, realize the efficiency utilization of waste heat.
Embodiment 1
Vaporizer 4 in the present embodiment is arranged on the feed end in cooling cylindrical shell 301, and reduced iron pelletizing is temperatures as high 1100 DEG C when entering cooling cylindrical shell 301, and its radiant heat is very large, and feed end vaporizer 4 being arranged on cooling cylindrical shell 301 can efficient recovery heat.Vaporizer 4 is made up of a lower header 401, upper collecting chamber 402, a multiple generating tube 403, the upper collecting chamber 402 being positioned at vaporizer 4 top stretches out entrance lock with the front end of the lower header 401 being positioned at vaporizer 4 bottom and is fixedly connected with entrance lock, upper collecting chamber 402 and lower header 401 end header shrouding 404 are blocked, many generating tubes 403 are arranged between upper collecting chamber 402 and lower header 401, and the two ends of generating tube 403 communicate with upper collecting chamber 402 and lower header 401 consolidation respectively.The axis of the generating tube 403 in the present embodiment is semi-circular shape, half elliptic or linear pattern.Water enters generating tube 403 by lower header 401, and in generating tube 403, heat absorption becomes steam-water twin phases mixture, and steam-water twin phases mixture gets back to drum through upper collecting chamber 402, in drum, carry out carbonated drink separation, and the steam of generation supplies outward.Preferably, the axis of lower header 401 is inclined upwardly to cooling cylindrical shell 301 by entrance lock, the axis of upper collecting chamber 402 is downward-sloping to cooling cylindrical shell 301 by entrance lock, lower header 401 and upper collecting chamber 402 are all inclined upwardly along medium flowing direction, be conducive to medium flowing, avoid producing vapour lock in vaporizer 4.
Concrete, in the present embodiment, circulating cooling heat exchange mechanisms comprises the first cooling duct and the second cooling duct, wherein the first cooling duct is fixedly connected with cooling cylindrical shell 301 inwall, reversing mechanism is provided with at the feed end of cooling cylindrical shell 301, hydroseparator structure is provided with and the mechanism that catchments at the discharge end of cooling cylindrical shell 301, the two ends of the first cooling duct are communicated with hydroseparator structure and reversing mechanism respectively, hydroseparator structure connects water main 309, the two ends of the second cooling duct are communicated with reversing mechanism and the mechanism that catchments respectively, the mechanism that catchments is connected with return main 310, heat-eliminating medium in water main 309 is sent into the first cooling duct by hydroseparator structure, heat-eliminating medium in first cooling duct enters the second cooling duct by reversing mechanism, heat-eliminating medium in second cooling duct is discharged through catchment mechanism and return main 310 successively.Heat interchanging area is added by the first cooling duct and the second cooling duct, and utilize hydroseparator structure that the heat-eliminating medium in water main 309 is evenly sent into the first cooling duct, reversing mechanism accepts the heat-eliminating medium in the first cooling duct and is delivered in the second cooling duct, structure is simple, and hydroseparator structure is cooling the same one end of cylindrical shell 301 with the organization establishes that catchments, thus be convenient to water main 309 and return main 310 are arranged on cooling same one end of cylindrical shell 301, structure is simple, easy for installation, avoid water main 309, return main 310 and feeding chute 1, the installation of vaporizer 4 produces to be interfered mutually.
Preferably, first cooling duct and/or the second cooling duct form the concaveconvex structure promoting material and rotate with cooling cylindrical shell 301 at cooling cylindrical shell 301 inwall, material in cooling cylindrical shell 301 rotation process is avoided to cool cylindrical shell 301 basal sliding, just fall after making material turn to certain altitude with cooling cylindrical shell 301, thus the contact area that increase effectively between material and circulating cooling heat exchange mechanisms, improve heat exchange efficiency.
Concrete, in the present embodiment, the first cooling duct is arranged on the multiple cooling half pipes 303 on cooling cylindrical shell 301 inwall, and cooling half pipe 303 forms coolant flow channel with cooling cylindrical shell 301 inwall consolidation.Cooling half pipe 303 is set directly on cooling cylindrical shell 301 inwall, water in cooling half pipe 303 has cooling effect to cooling cylindrical shell 301 inwall, effectively can reduce the temperature of cooling cylindrical shell 301, reduce distortion, and multiple cooling half pipe 303 forms the concaveconvex structure promoting material and rotate with cooling cylindrical shell 301 at cooling cylindrical shell 301 inwall, material is rotated with cooling cylindrical shell 301.Further, the second cooling duct in the present embodiment is arranged on the multiple round cooling 304 inside circumgyration body that multiple cooling half pipe 303 surrounds, round cooling 304 can be deep into material bed inside, decrease the heat transfer distances of material, enhance heat transfer effect, and round cooling 304 is distributed in different radial heights from cooling half pipe 303, the further concaveconvex structure forming promotion material and rotate with cooling cylindrical shell 301, more effectively promote material to rotate with cooling cylindrical shell 301, material rotates with cooling cylindrical shell 301 and rises to certain altitude and shed and fall, certain convective heat exchange is produced between material and round cooling 304, also provide enhanced the blending of material simultaneously.The sensible heat that cooling half pipe 303 and round cooling 304 absorb material may be used for the feedwater of preheating deoxygenator, achieves the UTILIZATION OF VESIDUAL HEAT IN of high temperature reduction iron ball group.The axis of the cooling half pipe 303 in the present embodiment and axis being parallel, the axis of round cooling 304 and the axis being parallel of cooling half pipe 303 of cooling cylindrical shell 301.Certain cooling half pipe 303 can also be spiral helicine, and promote material in the process of rotation and advance, round cooling 304 also can be spiral helicine.
In the present embodiment, water main 309 and return main 310 are positioned on the axis of cooling cylindrical shell 301 discharge end, and return main 310 is positioned at the inside of water main 309, water main 309 is communicated with hydroseparator structure by radial water inlet pipe 307, return main 310 is communicated with the mechanism that catchments by radial return water pipe 305, and water main 309, return main 310 are connected with swivel joint 6 through discharging bin 5 end.Water main 309 and return main 310 mutually socket are convenient to be connected swivel joint 6, and structure is simple, are convenient to by connecting hydroseparator structure and the mechanism that catchments.
Hydroseparator structure in the present embodiment is point water semicanal 308 that annular is arranged on cooling cylindrical shell 301 discharge end inwall, and point water semicanal 308 forms water annulus with cooling cylindrical shell 301 inwall consolidation; Reversing mechanism is the changed course semicanal 302 that annular is arranged on the inwall of cooling cylindrical shell 301 feed end, and changed course semicanal 302 forms water annulus with cooling cylindrical shell 301 inwall consolidation; The mechanism that catchments is the collection pipe 306 that annular is arranged on cooling cylindrical shell 301 discharge end.Water semicanal 308 is divided to cool cooling cylindrical shell 301 while delivery medium with changed course semicanal 302.
Cylindrical shell rotary drive mechanism comprises support roller support assembly 8 and drives assembly 9, the outside wall surface of cooling cylindrical shell 301 is provided with two annular wheel belt 313 and an annular cingulum 314, two described support roller support assemblies 8 support cooling cylindrical shell 301 by wheel belt 313, drive the output terminal of assembly 9 by gears meshing cingulum 314; The center cross-sectional of a wheel belt 313 overlaps with the center cross-sectional of changed course semicanal 302, and the center cross-sectional of another wheel belt 313 overlaps with the center cross-sectional of point water semicanal 308.Changed course semicanal 302 can cool wheel belt 313 with the water in point water semicanal 308, avoids the tugboat overtemperature of tugboat support assembly 8.Therefore the present invention efficiently solves cooling cylindrical shell 301 and the high temperature deformation of tugboat and the problem of damage, improves equipment work reliability and work-ing life.
Entrance lock in the present embodiment is the head cylindrical shell 2 that front end is closed, end is deep into cooling cylindrical shell 301 feed end inside, in the annulus that head cylindrical shell 2 and cooling cylindrical shell 301 are formed, be provided with lock packing 13, with the first gland 11, lock packing 13 compressed; Feeding chute 1 is deep in space that the first cooling duct and the second cooling duct surround from outside, the front end of head cylindrical shell 2 through head cylindrical shell 2;
Head cylindrical shell 2 comprises head outer cylinder body 202, head inner barrel 201, outer end plate 206, inner end plate 205 and ring sealing plate 204, head inner barrel 201 is positioned at the inside of head outer cylinder body 202, head outer cylinder body 202 front end is provided with outer end plate 206 and consolidation sealing, head inner barrel 201 front end is provided with inner end plate 205 and consolidation sealing, annulus end between head outer cylinder body 202 and head inner barrel 201 is provided with ring sealing plate 204, head outer cylinder body 202, head inner barrel 201, outer end plate 206, inner end plate 205 surrounds a water-cooling jacket together with ring sealing plate 204, water inlet pipe 203 is provided with in described water-cooling jacket bottom, top is provided with rising pipe 207.Adopt water coolant to cool head cylindrical shell 2, reduce the distortion of head cylindrical shell 2, improve the reliability of sealing and the work-ing life of head cylindrical shell 2.
With reference to Fig. 3, lock packing 13 is provided with in the annulus that head outer cylinder body 202 and cooling cylindrical shell 301 are formed, the outside of lock packing 13 is provided with the first gland 11, with the first bolt 10 and the first nut 12 by the first gland 11 be arranged on the shell flange 315 cooled in the outside wall surface of cylindrical shell 301 end and be fastenedly connected, and lock packing 13 to be compressed.Regulate the compression degree of lock packing 13, make can relatively rotate between cooling cylindrical shell 301 and head cylindrical shell 2, sealing can be realized again.Feeding chute 1 is outside from the front end of head cylindrical shell 2 to be deep in the cooling cylindrical shell at changed course semicanal 302 rear portion through outer end plate 206 and inner end plate 205 successively, and feeding chute 1 is fixedly connected with inner end plate 205 with outer end plate 206.Material can be delivered in the cooling cylindrical shell 301 at changed course semicanal 302 rear portion by feeding chute 1, makes material and cooling half pipe 303 and round cooling 304 contact heat-exchanging.
With reference to Fig. 1,4, discharging bin 5 comprises discharging bin cylindrical shell 501, discharging bin end plate 502, hopper 503, discharging bin flange 504, baffle plate 505.The front end outside wall surface of discharging bin cylindrical shell 501 is provided with discharging bin flange 504, and inwall is provided with baffle plate 505, and end is provided with discharging bin end plate 502 and is closed by discharging bin 5, and bottom is provided with feed opening 503.The front end sleeve of discharging bin cylindrical shell 501 in the outside of cooling cylindrical shell 301 discharge end, and makes baffle plate 505 near the end face of cooling cylindrical shell 301.See Fig. 4, lock packing 13 is provided with in the annulus that discharging bin cylindrical shell 501 and cooling cylindrical shell 301 are formed, the outside of lock packing 13 is provided with the second gland 15, with the second bolt 14 and the second nut 16, second gland 15 is fastenedly connected with discharging bin flange 504, and lock packing 13 is compressed.Regulate the compression degree of lock packing 13, make to realize rotary seal between cooling cylindrical shell 301 and discharging bin cylindrical shell 501.Be provided with hole at the center of discharging bin end plate 502, water main 309 is connected with swivel joint 6 through this hole.
Preferably, be fixedly connected with discharge valve 7 on the downside of feed opening 503, discharge valve 7 can make to form certain material envelope in feed opening 503, and thus whole equipment good airproof performance, efficiently solves the high temperature oxidation problem of reduced iron pelletizing.
See Fig. 5, lock packing 13 is provided with in space between water main 309 and discharging bin end plate 502, the outside of lock packing 13 is provided with the 3rd gland 18, is fastenedly connected by the 3rd gland 18, and lock packing 13 is compressed with the 3rd bolt 17 with discharging bin end plate 502.Regulate the compression degree of lock packing 13, make to realize rotary seal between water main 309 and discharging bin end plate 502.In the present embodiment, the end cooling cylindrical shell 301 is provided with reducing, to reduce the radial dimension of discharging bin 5.
Working process: during erecting equipment, axis and the sea line of cooling cylindrical shell 301 have certain inclination angle, downward-sloping to discharge end from feed end, so that material moves to discharging bin 5 side.Revolution cooling cylindrical shell 3 rotates under the driving driving assembly 9 on two tugboat support assemblies 8, high-temperature material enters in cooling cylindrical shell 301 by feeding chute 1, and move to discharge end by feed end, enter in the feed opening 503 of discharging bin 5, eventually pass through discharge valve 7 and discharge.Material is subject to the working medium cooling in vaporizer 4, cooling half pipe 303 and round cooling 304 and lowers the temperature in moving process.Water enters in the circular channel between water main 309 and return main 310 from swivel joint 6, cooling half pipe 303 is entered successively again through radial water inlet pipe 307, a point water semicanal 308, the heat absorbing material in cooling half pipe 303 heats up, then round cooling 304 is entered through changed course semicanal 302, the heat absorbing material in round cooling 304 again continues to heat up, last successively through collection pipe 306, radial return water pipe 305, return main 310 and swivel joint 6, discharge from swivel joint 6, preferably, can as the moisturizing of preheating deoxygenator.Water in drum enters generating tube 403 through lower header 401, and in generating tube 403, heat absorption becomes steam-water twin phases mixture, and steam-water twin phases mixture gets back to drum through upper collecting chamber 402, in drum, carry out carbonated drink separation, and the steam of generation supplies outward.
Embodiment 2
With reference to Fig. 6, one of difference of the present embodiment and embodiment 1 is circulating cooling heat exchange mechanisms.Circulating cooling heat exchange mechanisms in the present embodiment comprises cooling half pipe 303 and cooling backwater semicanal 316, cooling half pipe 303 and cooling backwater semicanal 316 are all fixed on the inwall of cooling cylindrical shell 301, the inwall of cooling cylindrical shell 301 feed end is fixed with the changed course semicanal 302 of annular, the inwall of cooling cylindrical shell 301 discharge end is fixed with point water semicanal 308 and charge for remittance semicanal 317, the two ends of cooling half pipe 303 are communicated with point water semicanal 308 and changed course semicanal 302, the two ends of cooling backwater semicanal 316 are communicated with changed course semicanal 302 and charge for remittance semicanal 317, water semicanal 308 is divided to be communicated with water main 309, charge for remittance semicanal 317 is communicated with return main 310.
Cooling half pipe 303 in the present embodiment and cooling backwater semicanal 316 can have multiple respectively, multiple cooling half pipe 303 and multiple cooling backwater semicanal 316 can be separately positioned on cooling cylindrical shell 301 both sides, and point water semicanal 308 and charge for remittance semicanal 317 correspondence are arranged on the both sides of cooling cylindrical shell 301; Multiple cooling half pipe 303 and multiple cooling backwater semicanal 316 also can be arranged alternately successively.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. a reduced iron high efficiency cooling and waste-heat recovery device, comprise revolution cooling cylindrical shell (3) of feeding chute (1) and arranged transversely, the feed end of revolution cooling cylindrical shell (3) is sealed by entrance lock, feeding chute (1) enters in revolution cooling cylindrical shell (3) through entrance lock, the discharge end sealing of revolution cooling cylindrical shell (3) is fixed with discharging bin (5), entrance lock and discharging bin (5) are fixedly installed, revolution cooling cylindrical shell (3) is connected with the cylindrical shell rotary drive mechanism driving it to rotate, discharging bin (5) bottom is provided with feed opening (503), it is characterized in that: described revolution cooling cylindrical shell (3) comprises cooling cylindrical shell (301), circulating cooling heat exchange mechanisms is provided with at the inwall of cooling cylindrical shell (301), circulating cooling heat exchange mechanisms is connected with water main (309) and return main (310), vaporizer (4) is also provided with in the inner side of cooling cylindrical shell (301).
2. a kind of reduced iron high efficiency cooling according to claim 1 and waste-heat recovery device, it is characterized in that: described circulating cooling heat exchange mechanisms comprises the first cooling duct and the second cooling duct, wherein the first cooling duct is fixedly connected with cooling cylindrical shell (301) inwall, reversing mechanism is provided with at the feed end of cooling cylindrical shell (301), hydroseparator structure is provided with and the mechanism that catchments at the discharge end of cooling cylindrical shell (301), the two ends of the first cooling duct are communicated with hydroseparator structure and reversing mechanism respectively, hydroseparator structure connects water main (309), the two ends of the second cooling duct are communicated with reversing mechanism and the mechanism that catchments respectively, the mechanism that catchments is connected with return main (310), heat-eliminating medium in water main (309) is sent into the first cooling duct by hydroseparator structure, heat-eliminating medium in first cooling duct enters the second cooling duct by reversing mechanism, heat-eliminating medium in second cooling duct is successively through mechanism and return main (310) discharge of catchmenting.
3. a kind of reduced iron high efficiency cooling according to claim 2 and waste-heat recovery device, it is characterized in that: described first cooling duct is arranged on the multiple cooling half pipes (303) on cooling cylindrical shell (301) inwall, and cooling half pipe (303) forms coolant flow channel with cooling cylindrical shell (301) inwall consolidation.
4. a kind of reduced iron high efficiency cooling according to claim 3 and waste-heat recovery device, is characterized in that: the second cooling duct is arranged on the multiple round cooling (304) inside circumgyration body that multiple cooling half pipe (303) surrounds.
5. a kind of reduced iron high efficiency cooling according to claim 2 and waste-heat recovery device, it is characterized in that: described water main (309) and return main (310) are positioned on the axis of cooling cylindrical shell (301) discharge end, and return main (310) is positioned at the inside of water main (309), water main (309) is communicated with hydroseparator structure by radial water inlet pipe (307), return main (310) is communicated with the mechanism that catchments by radial return water pipe (305), water main (309), return main (310) is connected with swivel joint (6) through discharging bin (5) end.
6. a kind of reduced iron high efficiency cooling according to claim 2 or 5 and waste-heat recovery device, it is characterized in that: described hydroseparator structure is point water semicanal (308) that annular is arranged on cooling cylindrical shell (301) discharge end inwall, and point water semicanal (308) forms water annulus with cooling cylindrical shell (301) inwall consolidation;
Reversing mechanism is the changed course semicanal (302) that annular is arranged on the inwall of cooling cylindrical shell (301) feed end, and changed course semicanal (302) forms water annulus with cooling cylindrical shell (301) inwall consolidation;
The described mechanism that catchments is the collection pipe (306) that annular is arranged on cooling cylindrical shell (301) discharge end.
7. a kind of reduced iron high efficiency cooling according to claim 1 and waste-heat recovery device, it is characterized in that: cylindrical shell rotary drive mechanism comprises support roller support assembly (8) and drives assembly (9), the outside wall surface of cooling cylindrical shell (301) is provided with two annular wheel belt (313) and an annular cingulum (314), two described support roller support assemblies (8) support cooling cylindrical shell (301) by wheel belt (313), drive the output terminal of assembly (9) by gears meshing cingulum (314); The center cross-sectional of a wheel belt (313) overlaps with the center cross-sectional of changed course semicanal (302), and the center cross-sectional of another wheel belt (313) overlaps with the center cross-sectional of point water semicanal (308).
8. a kind of reduced iron high efficiency cooling according to claim 1 and waste-heat recovery device, it is characterized in that: described vaporizer (4) is arranged on the feed end in cooling cylindrical shell (301), vaporizer (4) is by a lower header (401), a upper collecting chamber (402), multiple generating tube (403) is formed, the upper collecting chamber (402) being positioned at vaporizer (4) top stretches out entrance lock with the front end of the lower header (401) being positioned at vaporizer (4) bottom and is fixedly connected with entrance lock, upper collecting chamber (402) and lower header (401) end header shrouding (404) are blocked, many generating tubes (403) are arranged between upper collecting chamber (402) and lower header (401), the two ends of generating tube (403) communicate with upper collecting chamber (402) and lower header (401) consolidation respectively.
9. a kind of reduced iron high efficiency cooling according to claim 8 and waste-heat recovery device, it is characterized in that: the axis of described lower header (401) is inclined upwardly to cooling cylindrical shell (301) by entrance lock, and the axis of upper collecting chamber (402) is downward-sloping to cooling cylindrical shell (301) by entrance lock.
10. a kind of reduced iron high efficiency cooling according to claim 1 or 8 or 9 and waste-heat recovery device, it is characterized in that: described entrance lock is the head cylindrical shell (2) that front end is closed, end is deep into cooling cylindrical shell (301) feed end inside, in the annulus that head cylindrical shell (2) and cooling cylindrical shell (301) are formed, be provided with lock packing (13), with the first gland (11), lock packing (13) compressed; Feeding chute (1) is deep in space that the first cooling duct and the second cooling duct surround from outside, the front end of head cylindrical shell (2) through head cylindrical shell (2);
Head cylindrical shell (2) comprises head outer cylinder body (202), head inner barrel (201), outer end plate (206), inner end plate (205) and ring sealing plate (204), head inner barrel (201) is positioned at the inside of head outer cylinder body (202), head outer cylinder body (202) front end is provided with outer end plate (206) and consolidation sealing, head inner barrel (201) front end is provided with inner end plate (205) and consolidation sealing, annulus end between head outer cylinder body (202) and head inner barrel (201) is provided with ring sealing plate (204), head outer cylinder body (202), head inner barrel (201), outer end plate (206), inner end plate (205) and ring sealing plate (204) surround a water-cooling jacket together, water inlet pipe (203) is provided with in described water-cooling jacket bottom, top is provided with rising pipe (207).
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| CN108165738A (en) * | 2018-02-13 | 2018-06-15 | 山东理工大学 | A kind of residual heat recovery type reduced iron cooling device |
| CN108300853A (en) * | 2018-02-13 | 2018-07-20 | 山东理工大学 | Cooling for reduced iron and waste-heat recovery device |
| CN108330279A (en) * | 2018-02-13 | 2018-07-27 | 山东理工大学 | Reduced iron cooling and waste-heat recovery device |
| CN108330278A (en) * | 2018-02-13 | 2018-07-27 | 山东理工大学 | Residual heat recovery type reduced iron cooling device |
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| CN104789761B (en) | 2017-03-01 |
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Effective date of registration: 20230407 Address after: Xiaobaixi Village, Kunlun Town, Zichuan District, Zibo City, Shandong Province, 255192 Patentee after: Shandong Huaao Ceramic Technology Co.,Ltd. Address before: 1012 room 255086, building D, high tech garden, hi tech Industrial Development Zone, Shandong, Zibo Patentee before: Shandong University of Technology |