CN204005899U - The waste heat boiler of can-type calcine furnace - Google Patents
The waste heat boiler of can-type calcine furnace Download PDFInfo
- Publication number
- CN204005899U CN204005899U CN201420202332.3U CN201420202332U CN204005899U CN 204005899 U CN204005899 U CN 204005899U CN 201420202332 U CN201420202332 U CN 201420202332U CN 204005899 U CN204005899 U CN 204005899U
- Authority
- CN
- China
- Prior art keywords
- flue
- tube group
- heat
- pipe
- evaporation tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 39
- 238000012546 transfer Methods 0.000 claims abstract description 65
- 238000001704 evaporation Methods 0.000 claims abstract description 58
- 230000008020 evaporation Effects 0.000 claims abstract description 58
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003546 flue gas Substances 0.000 claims abstract description 46
- 239000008234 soft water Substances 0.000 claims abstract description 43
- 238000007599 discharging Methods 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 8
- 238000013459 approach Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 16
- 239000004567 concrete Substances 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 claims description 10
- 239000011449 brick Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 229910052902 vermiculite Inorganic materials 0.000 claims description 6
- 235000019354 vermiculite Nutrition 0.000 claims description 6
- 239000010455 vermiculite Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 2
- 230000003416 augmentation Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 6
- 230000001815 facial effect Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 235000014171 carbonated beverage Nutrition 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The waste heat boiler that the utility model discloses a kind of can-type calcine furnace, comprises flue, and flue is horizontal tunnel formula structure, and the two ends of flue are respectively arranged with gas approach, exhanst gas outlet, and bottom is connected with ash-discharging device by infundibulate ash discharging hole; In flue, according to flue gas flow direction, be disposed with steam superheater, the first evaporation tube group, the second evaporation tube group and soft water heater, the top of flue is provided with drum; One end of soft water heater is connected with soft water pipe network by feed pipe, the other end is connected with drum by hot-water line, the first evaporation tube group, the second evaporation tube group are provided with down-comer and fairlead, down-comer, fairlead are connected with drum respectively, the saturated steam pipe of one end of steam superheater is connected with drum, and the other end is connected with steam pipe system by overheated steam pipe.Therefore, the utlity model has following advantage: system rated pressure wide adaptability, steam superheater safety, heat-transfer area augmentation of heat transfer, flue gas flow rate are even, ash discharge automatically in time and furnace wall good airproof performance.
Description
Technical field
The utility model relates to a kind of exhaust-heat boiler system equipment, belongs to heating system equipment technical field.
Background technology
At present, the afterheat boiler system of can-type calcine furnace (carbon element industry can-type calcine furnace residual neat recovering system) is generally comprised of parts such as steam superheater, boiler body and soft water heaters, boiler body is partly generally two drum longitudinals or horizontal vertical three return-stroke types, and steam superheater and soft water heater heat-transfer area adopt wrong row's mode.In actual motion, often exist following several respects not enough:
1. afterheat boiler system rated pressure is limited in below sub-high pressure (5.3MPa), more than can not running to sub-high pressure (5.3MPa).
Steam superheater windward facial canal row be directly subject to sweep of gases, windward side heat-transfer pipe serious wear, changes frequently, affects residual neat recovering system stable and high effective operation;
3. each heat transfer segment of waste heat boiler adopts light pipe type heat-transfer area conventionally, and equipment metal consumption is large, and heat-transfer effect is low, and cost of investment is high;
4. each heat transfer segment flue gas flow rate of waste heat boiler is inhomogeneous, and fume high-temperature section flow velocity is high, and heating surface is easy to wear, and flue gas low-temperature section flow velocity is low, the easy dust stratification of heating surface;
5. waste heat boiler heat-transfer area dust stratification is serious, and ash discharge not in time, causes part heating surface to be embedded in ash, and heat-transfer effect reduces, and exhaust gas temperature raises, and affects system heat recovery rate;
Waste heat boiler furnace wall sealing is poor easily leaks out (cigarette), and fume side on-way resistance falls greatly simultaneously, and model selection of ID fan power is large, additionally increases secondary energy sources consumption.
Utility model content
The utility model is for the deficiency of the problems referred to above, propose that a kind of system rated pressure wide adaptability, steam superheater safety, heat-transfer area augmentation of heat transfer, flue gas flow rate are even, ash discharge automatically in time and the waste heat boiler of the can-type calcine furnace of furnace wall good airproof performance.
The utility model is that the technical scheme that solves the problems of the technologies described above proposition is:
A waste heat boiler for can-type calcine furnace, comprises the flue forming in furnace wall, and described flue is horizontal tunnel formula structure, one end of flue is provided with gas approach, the other end is provided with exhanst gas outlet, and bottom is provided with ash-discharging device, and ash-discharging device is connected with flue by infundibulate ash discharging hole; In flue, according to flue gas flow direction, be disposed with steam superheater, the first evaporation tube group, the second evaporation tube group and soft water heater, and the top of flue is provided with drum, this drum is perpendicular to flue gas flow direction setting; One end of soft water heater is connected with soft water pipe network by feed pipe, the other end is connected with drum by hot-water line, the first evaporation tube group, the second evaporation tube group are provided with down-comer and fairlead, down-comer, fairlead are connected with drum respectively, the saturated steam pipe of one end of steam superheater is connected with drum, and the other end is connected with steam pipe system by overheated steam pipe.
As further improvement of the utility model, the heat-transfer pipe of described steam superheater is snake-like tube row, and this snake-like tube row is vertically suspended in flue; The windward side of described snake-like tube row is fitted with anti-abrasion cover, and described anti-abrasion cover semicircular in shape arranges, and anti-abrasion cover is antifriction metal (AFM) material.
As further improvement of the utility model, the caliber of the heat-transfer pipe of described steam superheater is 32 mm～42mm, and the quality of steam flow velocity in described steam superheater is at 250kg/ (m simultaneously
2s)～1100kg/ (m
2s).
As further improvement of the utility model, described the first evaporation tube group and the second evaporation tube group include heating surface bank, the equipped lower header in lower end of heating surface bank, and the upper end of heating surface bank is vertically suspended in flue by upper collecting chamber, lantern pipe successively; The heat-transfer area of described heating surface bank is extended surface tube, and this extended surface tube comprises fin base tube and the fin that is welded on fin base tube periphery, and described fin is parallel to flue gas flow direction setting.
As further improvement of the utility model, the caliber of the heating surface bank of described the first evaporation tube group and the second evaporation tube group is 38mm～51mm.
As further improvement of the utility model, the heat-transfer pipe of described soft water heater is snakelike tube bank, and this snakelike tube bank is vertically suspended in flue; The heat-transfer area of described snakelike tube bank is diaphragm pipe, and diaphragm pipe comprises diaphragm base tube and is welded on the band steel between adjacent two diaphragm base tubes.
As further improvement of the utility model, the caliber of the heat-transfer pipe of described soft water heater is 25 mm～51mm, and the water flow velocity in described soft water heater is at 0.3m/s～2m/s simultaneously.
As further improvement of the utility model, the flue gas heat transfer flow velocity of described steam superheater is 10～14m/s, and the flue gas heat transfer flow velocity of the first evaporation tube group and the second evaporation tube group is 8～10m/s, and the flue gas heat transfer flow velocity of soft water heater is 7～10m/s; Described flue arranges corresponding flue gas actual internal area according to the flue gas heat transfer flow velocity of steam superheater, the first evaporation tube group, the second evaporation tube group, soft water heater.
As further improvement of the utility model, described ash-discharging device comprises the motor that unloads grey controller, the material level recoil simulator for detection of material level in infundibulate ash discharging hole, ash-valve, the keying of control ash-valve, described material level information of unloading in the infundibulate ash discharging hole that grey controller feeds back according to material level recoil simulator, by controlling the break-make of motor, realize the keying of ash-valve and control.
As further improvement of the utility model, described furnace wall comprises refractory brickwork, the outside of this refractory brickwork cast vermiculite concrete heat-insulation layer, and the outside of vermiculite concrete heat-insulation layer is by protecting steel plate outward and profile steel frame is welded; Described refractory brickwork equal intervals ground arranges and draws brick, described in draw brick to adopt heat resistance concrete and profile steel frame to build to be integral, and draw between brick and profile steel frame and be connected by heat-resisting arm-tie, described heat-resisting arm-tie buries to be filled out in heat resistance concrete.
According to above technical scheme, with respect to prior art, the utlity model has following advantage:
1. waste heat boiler adopts horizontal tunnel formula flue structure, adopts described flue structure to make flue gas pass through flue evenly, reposefully, and flow of flue gas is smooth and easy, does not turn, and is difficult for forming bias current and eddy current; Adopt transversal flow to compare with parallel baffled, effectively improved the heat transfer coefficient of flue gas, effectively save system equipment investment and O&M cost.
2. waste heat boiler the first evaporation tube group and the second evaporation tube group adopt vertical suspension type lantern pipe (upper lower header+heating surface bank) structure; Adopt described lantern tubular construction, make more than afterheat boiler system rated pressure may operate at sub-high pressure (5.3MPa); Broken through existing pair of drum longitudinal or horizontal vertical three restrictions of return-stroke type waste heat boiler to operating pressure, the pressure scope of application is more wide in range.
Waste heat boiler steam superheater windward facial canal row be provided with the semicircle anti-abrasion cover of metal; and anti-abrasion cover is high-quality antifriction metal (AFM) material (1Cr25Ni20Si2); effectively intercept dust particle in flue gas to directly the washing away of steam superheater windward side comb, protection steam superheater.Steam superheater adopts waterpipe type structure, and flue gas steam medium in heat-transfer pipe flows heating biography heat exchanger tube is outward realized heat exchange, is that convection type conducts heat.Described steam superheater heat-transfer pipe is selected the pipe of 32～42mm different tube diameters, by suitable pipe row and caliber, designs, and the quality of steam flow velocity in control steam superheater is at 250～1100kg/ (m
2s), avoid heat-transfer pipe tube wall temperature to exceed design and maximum permissible temperature, be beneficial to steam superheater stable and high effective operation.
4. waste heat boiler evaporation tube group and soft water heater heat-transfer area adopt augmentation of heat transfer design, and described evaporation tube group heat-transfer area is extended surface tube, and this extended surface tube comprises base tube and the fin that is welded on base tube periphery according to base tube center line (being parallel to flue gas flow direction); Described soft water heater heat-transfer area is diaphragm pipe, and this diaphragm pipe comprises base tube and is welded on band steel between adjacent base tube; The waste heat boiler thermal efficiency effectively improves, and reduces equipment volume and alleviates equipment metal consumption, further reduces cost of investment.
5. in waste heat boiler, in can-type calcine furnace flue gas and soft water heater, carbonated drink medium flows one another along contrary direction, forms the high countercurrent heat exchange of a kind of waste heat recovery thermal efficiency.It is the pipe of 25～51mm that the base tube of soft water heater diaphragm pipe is selected caliber, by suitable pipe row and caliber, designs, and the water flow velocity in control soft water heater, at 0.3～2m/s, is avoided oxygen corrosion and separation of two; The base tube of described diaphragm pipe and band steel are selected high-quality ND steel (09CrCuSb), to resist the dewing corrosion of sulfur-bearing composition in can-type calcine furnace flue gas, avoid described diaphragm pipe to be corroded and cause non-normal stop, for the normal operation of afterheat boiler system provides effective assurance.
6. each heat transfer segment of waste heat boiler designs different flue gas actual internal areas, and each heat transfer segment obtains best flue gas heat transfer flow velocity; The best flue gas heat transfer flow velocity 10～14m/s (mark condition) of described steam superheater, the best flue gas heat transfer flow velocity 8～10m/s (mark condition) of the first evaporation tube group and the second evaporation tube group, the best flue gas heat transfer flow velocity 7～10m/s (mark condition) of soft water heater.By arranging of above-mentioned flue gas flow rate, improved the heat transfer efficiency of waste heat boiler, reduced fume side on-way resistance and fallen; Realize smoke gas flow power to tube wall from the deashing time, actively improve the wearing and tearing of flue gas to heat-transfer pipe.
7. the steam superheater of waste heat boiler, the first evaporation tube group, the second evaporation tube group and soft water heater heat-transfer area adopt the pipe manufacture of 32～51mm different tube diameters to form, and augmentation of heat transfer, to improve the thermal efficiency; Technological process layout is more becoming tight and gathers, and manufactory's Knockdown block dissolves factory, reduces mounting site working strength.
8. waste heat boiler horizontal tunnel formula flue bottom is provided with infundibulate ash discharging hole, inside is provided with material level recoil simulator, and bottom is provided with ash-valve, and the motor of material level recoil simulator and ash-valve is set up interlocking, by industrial control system, realize unmanned ash discharge in time automatically.
9. the furnace wall of waste heat boiler adopts the all-welded furnace wall all-sealed structure of the additional steel panel of light boiler setting, improves the sealing of waste heat boiler furnace wall, and do not leak out (cigarette), avoids affecting system thermal efficiency because furnace wall leaks out.
Accompanying drawing explanation
Fig. 1 is device structure schematic diagram of the present utility model;
Fig. 2 a is the structural representation of steam superheater described in the utility model; Fig. 2 b is the A-A cutaway view in Fig. 2 a;
Fig. 3 a is the structural representation of the first evaporation tube group described in the utility model or the second evaporation tube group; Fig. 3 b is the B-B cutaway view in Fig. 3 a;
Fig. 4 a is the structural representation of soft water heater described in the utility model; Fig. 4 b is the C-C cutaway view in Fig. 4 a;
Fig. 5 is of the present utility model from ash-clearing structure schematic diagram;
Fig. 6 is that light boiler setting of the present utility model adds the outer full welded seal structure of steel plate of protecting;
In figure: 1. horizontal tunnel formula flue, 2. steam superheater, 3. the first evaporation tube group, 4. the second evaporation tube group, 5. soft water heater, 6. drum, 7. feed pipe, 8. hot-water line, 9. down-comer, 10. fairlead, 11. saturated steam pipes, 12. overheated steam pipes, 13. infundibulate ash discharging holes, 14. ash-discharging devices, 15. gas approach, 16. exhanst gas outlets, 17. lantern pipes, 181. upper collecting chamber, 182. lower header, 19. heating surface banks, 20. extended surface tubes, 21. base tubes, 22. fins, 23. facial canal rows windward, the semicircle anti-abrasion cover of 24. metals, 25. diaphragm pipes, 26. base tubes, 27. band steels, 28. material level recoil simulators, 29. ash-valves, 30. furnace walls, 31. refractory brickworks, 32. vermiculite concretes, the 33. outer steel plates that protect, 34. draw brick, 35. heat-resisting arm-ties, 36. heat resistance concretes.
The specific embodiment
Accompanying drawing discloses the structural representation of a preferred embodiment of the utility model without limitation, below with reference to accompanying drawing, explains the technical solution of the utility model.
Embodiment
The waste heat boiler of a kind of can-type calcine furnace of the present embodiment, as shown in Figure 1, the flue 1 that comprises horizontal tunnel formula structure, one end of flue 1 is provided with gas approach 15, the other end is provided with exhanst gas outlet 16, and bottom is provided with ash-discharging device 14, ash-discharging device 14 is connected with flue 1 by infundibulate ash discharging hole 13, steam superheater 2, the first evaporation tube group 3, the second evaporation tube group 4 and soft water heater 5 are successively set in flue 1 along flue gas flow direction, and drum 6 is arranged on flue 1 top perpendicular to flue gas flow direction; The feed pipe 7 of one end of soft water heater 5 is connected with soft water pipe network, the other end is connected with drum 6 by hot-water line 7, the first evaporation tube group 3 and the second evaporation tube group 4 are respectively arranged with down-comer 9 and fairlead 10, down-comer 9 is connected with drum 6 with fairlead 10, the saturated steam pipe 11 of one end of steam superheater 2 is connected with drum 6, and the other end is connected with steam pipe system by overheated steam pipe 12.
Described waste heat boiler adopts horizontal tunnel formula flue 1 structure, flue gas transversal flow heat-transfer area, and described heat-transfer area adopts in-line arrangement mode.
Described steam superheater 2 and soft water heater 5 adopt vertical suspension type coiled pipe structure, and described the first evaporation tube group 3 and the second evaporation tube group 4 adopt the upper lower header 18+ heating surface bank 19 of vertical suspension type lantern pipe 17() structure.
Described the first evaporation tube group 3 and the second evaporation tube group 4 adopt the upper lower header 18+ heating surface bank 19 of vertical suspension type lantern pipe 17() structure, more than afterheat boiler system rated pressure may operate at sub-high pressure (5.3MPa).
Described steam superheater 2 windward facial canal row 23 is provided with the semicircle anti-abrasion cover 24 of metal.
Described the first evaporation tube group 3 and the second evaporation tube group 4 heat-transfer areas are extended surface tube 20, and this extended surface tube comprises base tube 21 and the fin 22 that is welded on base tube 21 peripheries according to base tube 21 center lines (being parallel to flue gas flow direction).
Described soft water heater 5 heat-transfer areas are diaphragm pipe 25, and this diaphragm pipe 25 comprises base tube 26 and be welded on band steel 27 between adjacent base tube 26, and base tube 26 and band steel 27 are selected high-quality ND steel (09CrCuSb).
It is the pipe of 32～42mm that the heat-transfer pipe 23 of described steam superheater 2 is selected caliber, and the quality of steam flow velocity in described steam superheater 2 is at 250～1100kg/ (m simultaneously
2s).
It is the pipe of 38～51mm that the heat-transfer pipe 20 of described the first evaporation tube group 3 and the second evaporation tube group 4 is selected caliber.
It is the pipe of 25～51mm that the heat-transfer pipe 25 of described soft water heater 5 is selected caliber, and the water flow velocity in described soft water heater 5 is at 0.3～2m/s simultaneously.
Each heat transfer segment of described waste heat boiler designs different flue gas actual internal areas, and each heat transfer segment obtains best flue gas heat transfer flow velocity; The best flue gas heat transfer of described steam superheater 2 flow velocity 10～14m/s (mark condition), the first evaporation tube group 3 and the best flue gas heat transfer of the second evaporation tube group 4 flow velocity 8～10m/s (mark condition), the best flue gas heat transfer of soft water heater 5 flow velocity 7～10m/s (mark condition).
Described waste heat boiler does not arrange water drum, and horizontal tunnel formula flue 1 bottom is provided with infundibulate ash discharging hole 13, and inside is built by laying bricks or stones ramp-like, infundibulate ash discharge interface 13 lower end installing ash-discharging devices 14.
Described ash-discharging device 14 comprises material level recoil simulator 28 and ash-valve 29, and described material level recoil simulator 28 is set up interlocking with the motor of ash-valve 29, realizes ash discharge in time automatically.
Described waste heat boiler furnace wall 30 adopts light boiler setting to add the outer full welded seal structure of steel plate of protecting, described furnace wall is built refractory brickwork 31 by laying bricks or stones in heat-transfer pipe outside, wall is poured into a mould vermiculite concrete 32 heat-insulation layers outward, and steel plate 33 and profile steel frame welding, integral sealing are protected in heat-insulation layer external application outward; On described furnace wall, every 0.6m left and right, arrange and draw brick 34, with heat-resisting arm-tie 35, add heat resistance concrete 36 and be connected with outside profile steel frame.
In Fig. 1, flue gas enters from gas approach 15, and flow through successively from left to right steam superheater 2, the first evaporation tube group 3, the second evaporation tube group 4 and soft water heater 5 are finally discharged from exhanst gas outlet 16.Carbonated drink flow process: the self-supporting water pipe 7 of soft water enters soft water heater 5, soft water is sent into drum 6 by hot-water line 8 after soft water heater 5 heating, the steam water interface that the first evaporation tube group 3 and the second evaporation tube group 4 produce forms steam/water circulating loop by fairlead 10 and down-comer 9 with drum 6, saturated vapor in drum 6 is connected with steam superheater 2 by saturated steam pipe 11, saturated vapor produces superheated steam after steam superheater 2 heating, by overheated steam pipe 12, is sent to steam pipe system.Waste heat boiler adopts horizontal tunnel formula structural configuration, and smoke gas flow ash in each heat-transfer area process falls into infundibulate ash discharging hole 13, by ash-discharging device 14, discharges.
Above by reference to the accompanying drawings the preferred specific embodiment of described the utility model only for embodiment of the present utility model is described; rather than as the restriction to aforementioned utility model object and claims content and scope; every foundation technical spirit of the present utility model, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs to the utility model technology and rights protection category.
Claims (10)
1. the waste heat boiler of a can-type calcine furnace, comprise the flue forming in furnace wall, it is characterized in that, described flue is horizontal tunnel formula structure, one end of flue is provided with gas approach, the other end is provided with exhanst gas outlet, and bottom is provided with ash-discharging device, and ash-discharging device is connected with flue by infundibulate ash discharging hole; In flue, according to flue gas flow direction, be disposed with steam superheater, the first evaporation tube group, the second evaporation tube group and soft water heater, and the top of flue is provided with drum, this drum is perpendicular to flue gas flow direction setting; One end of soft water heater is connected with soft water pipe network by feed pipe, the other end is connected with drum by hot-water line, the first evaporation tube group, the second evaporation tube group are provided with down-comer and fairlead, down-comer, fairlead are connected with drum respectively, the saturated steam pipe of one end of steam superheater is connected with drum, and the other end is connected with steam pipe system by overheated steam pipe.
2. the waste heat boiler of can-type calcine furnace according to claim 1, is characterized in that, the heat-transfer pipe of described steam superheater is snake-like tube row, and this snake-like tube row is vertically suspended in flue; The windward side of described snake-like tube row is fitted with anti-abrasion cover, and described anti-abrasion cover semicircular in shape arranges, and anti-abrasion cover is antifriction metal (AFM) material.
3. according to the waste heat boiler of can-type calcine furnace described in claim 1 or 2, it is characterized in that, the caliber of the heat-transfer pipe of described steam superheater is 32 mm～42mm, and the quality of steam flow velocity in described steam superheater is at 250 kg/ (m simultaneously
2s)～1100kg/ (m
2s).
4. the waste heat boiler of can-type calcine furnace according to claim 1, it is characterized in that, described the first evaporation tube group and the second evaporation tube group include heating surface bank, the equipped lower header in lower end of heating surface bank, and the upper end of heating surface bank is vertically suspended in flue by upper collecting chamber, lantern pipe successively; The heat-transfer area of described heating surface bank is extended surface tube, and this extended surface tube comprises fin base tube and the fin that is welded on fin base tube periphery, and described fin is parallel to flue gas flow direction setting.
5. according to the waste heat boiler of can-type calcine furnace described in claim 1 or 4, it is characterized in that, the caliber of the heating surface bank of described the first evaporation tube group and the second evaporation tube group is 38mm～51mm.
6. the waste heat boiler of can-type calcine furnace according to claim 1, is characterized in that, the heat-transfer pipe of described soft water heater is snakelike tube bank, and this snakelike tube bank is vertically suspended in flue; The heat-transfer area of described snakelike tube bank is diaphragm pipe, and diaphragm pipe comprises diaphragm base tube and is welded on the band steel between adjacent two diaphragm base tubes.
7. according to the waste heat boiler of can-type calcine furnace described in claim 1 or 6, it is characterized in that, the caliber of the heat-transfer pipe of described soft water heater is 25 mm～51mm, and the water flow velocity in described soft water heater is at 0.3 m/s～2m/s simultaneously.
8. the waste heat boiler of can-type calcine furnace according to claim 1, it is characterized in that, the flue gas heat transfer flow velocity of described steam superheater is 10～14m/s, and the flue gas heat transfer flow velocity of the first evaporation tube group and the second evaporation tube group is 8～10m/s, and the flue gas heat transfer flow velocity of soft water heater is 7～10m/s; Described flue arranges corresponding flue gas actual internal area according to the flue gas heat transfer flow velocity of steam superheater, the first evaporation tube group, the second evaporation tube group, soft water heater.
9. the waste heat boiler of can-type calcine furnace according to claim 1, it is characterized in that, described ash-discharging device comprises the motor that unloads grey controller, the material level recoil simulator for detection of material level in infundibulate ash discharging hole, ash-valve, the keying of control ash-valve, described material level information of unloading in the infundibulate ash discharging hole that grey controller feeds back according to material level recoil simulator, by controlling the break-make of motor, realize the keying of ash-valve and control.
10. the waste heat boiler of can-type calcine furnace according to claim 1, it is characterized in that, described furnace wall comprises refractory brickwork, the outside of this refractory brickwork cast vermiculite concrete heat-insulation layer, and the outside of vermiculite concrete heat-insulation layer is by protecting steel plate outward and profile steel frame is welded; Described refractory brickwork equal intervals ground arranges and draws brick, described in draw brick to adopt heat resistance concrete and profile steel frame to build to be integral, and draw between brick and profile steel frame and be connected by heat-resisting arm-tie, described heat-resisting arm-tie buries to be filled out in heat resistance concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202332.3U CN204005899U (en) | 2014-04-23 | 2014-04-23 | The waste heat boiler of can-type calcine furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202332.3U CN204005899U (en) | 2014-04-23 | 2014-04-23 | The waste heat boiler of can-type calcine furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204005899U true CN204005899U (en) | 2014-12-10 |
Family
ID=52045897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202332.3U Expired - Lifetime CN204005899U (en) | 2014-04-23 | 2014-04-23 | The waste heat boiler of can-type calcine furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204005899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154513A (en) * | 2014-04-23 | 2014-11-19 | 盐城市锅炉制造有限公司 | Waste heat boiler of can-type calcinator |
-
2014
- 2014-04-23 CN CN201420202332.3U patent/CN204005899U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154513A (en) * | 2014-04-23 | 2014-11-19 | 盐城市锅炉制造有限公司 | Waste heat boiler of can-type calcinator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205403139U (en) | Low nitrogen buggy boiler | |
| CN104828779A (en) | Hydrogen chloride synthesizer capable of generating coproduct high pressure steam and synthesis process of synthesizer | |
| CN104154513A (en) | Waste heat boiler of can-type calcinator | |
| CN103868043A (en) | Exhaust heat boiler equipment of coal gasification device | |
| CN202691996U (en) | Pure medium temperature heat recovery boiler at cement kiln back end | |
| CN204005899U (en) | The waste heat boiler of can-type calcine furnace | |
| CN205119797U (en) | Energy -saving melting furnace | |
| CN203836922U (en) | Waste heat recycling equipment applied to coal gasification device | |
| CN104359326A (en) | System for efficiently recovering steel-making flue gas residual heat of electric-arc furnace | |
| CN204100835U (en) | A kind of scrap steel preheating electric furnace fume residual heat recycle device | |
| CN107676967B (en) | Energy-saving environment-friendly oil-and-natural gas-fired boiler | |
| CN203629342U (en) | Exhaust-heat boiler device for fuel oil type phosphate ore calcining kiln | |
| CN104266499A (en) | Scrap steel preheating electric furnace flue gas waste heat recovery device | |
| CN201636832U (en) | Exhaust heat boiler of electric steelmaking furnace | |
| CN201028487Y (en) | Tunnel type exhaust-heat boiler system equipment with prepositive heating surface device | |
| CN204880058U (en) | High temperature residual heat from flue gas of nitrogen fertilizer plant boiler equipment | |
| CN205245115U (en) | Novel gasifier with burn burning furnace exhaust -heat boiler | |
| CN103759239B (en) | Detachable steam generator | |
| CN204281675U (en) | A kind of Riser waste heat recovery device for coke oven that can improve heat exchange efficiency | |
| CN204727605U (en) | The hydrogen chloride synthesis device of by-product high-pressure steam | |
| CN208222820U (en) | A kind of Novel asymmetric flag facial canal structure boiler | |
| CN206320785U (en) | Forced circulation burning coal powder hot-water boiler | |
| CN205227289U (en) | Cooler waste gas waste heat over heater who knows to cement plant kiln hood | |
| CN202793047U (en) | Ferroalloy electric furnace gas heat recovery boiler | |
| CN203785466U (en) | Recovery device for heat emitted from petroleum coke calcining furnaces and collected flues |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU DONGJIU HEAVY INDUSTRIES CO., LTD. Free format text: FORMER NAME: YANCHENG CITY BOILER MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 224005 No. 5, Pioneer Road, Jiangsu, Yancheng City Patentee after: JIANGSU DONGJIU HEAVY INDUSTRY Co.,Ltd. Address before: 224005 No. 5, Pioneer Road, Jiangsu, Yancheng City Patentee before: YANCHENG BOILER MANUFACTURING CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |