CN204534508U - Cement kiln tail and tail bypass wind discharging exhaust-heat boiler - Google Patents
Cement kiln tail and tail bypass wind discharging exhaust-heat boiler Download PDFInfo
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- CN204534508U CN204534508U CN201520112723.0U CN201520112723U CN204534508U CN 204534508 U CN204534508 U CN 204534508U CN 201520112723 U CN201520112723 U CN 201520112723U CN 204534508 U CN204534508 U CN 204534508U
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- heat transfer
- facial canal
- boiler
- transfer facial
- heat
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- 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
Abstract
The utility model discloses a kind of cement kiln tail and tail bypass wind discharging exhaust-heat boiler, comprise arrange in vertical structure boiler body, be arranged at heat transfer facial canal in boiler body flue and heat transfer facial canal the rapping-off-ash device that is equipped with, described heat transfer facial canal is arranged in boiler body flue in vertical setting of types mode, each heat transfer facial canal is vertically being wholely set, and rapping-off-ash device is arranged on the bottom of heat transfer facial canal vertical direction or arranges near the bottom of heat transfer facial canal vertical direction.It can thus be appreciated that: during the utility model vibration dust-cleaning, heat transfer facial canal carries out deashing operation as a whole, and vibration passing is effective, and ash-removal effect is obvious; Dust stratification on it from top to bottom falls successively, can prevent heat-transfer area tube-surface dust stratification, effectively avoids the phenomenon producing the heat transfer facial canal heat exchange efficiency reduction caused thus.
Description
Technical field
Utility model relates to cement clinker production line pure middle and low temperature waste heat recovery field, relates more specifically to a kind of cement kiln tail and tail bypass wind discharging exhaust-heat boiler.
Background technology
Cement production enterprise is the major power consumer during national economy is produced, and cement industry has been listed in one of major fields that country economizes on resources.Propose the Policy Background of Accelerate Conservation-minded Society Construction in State Council under, improve economizing type manufacture and the application level of cement industry, set up economizing type cement industry system significant.When the outer energy imbalance between supply and demand of Present Domestic is outstanding, the energy-saving and cost-reducing problem having become cement industry and must complete, cement kiln pure middle and low temperature heat recovery technology makes this problem be able to good solution.In cement kiln pure middle and low temperature waste heat recovery field, waste heat boiler is key equipment, and the design of the waste heat boiler most important thing especially, it is not only related to the organic efficiency of cement kiln residual neat recovering system to cement producing line waste heat, and can be also related to residual neat recovering system Effec-tive Function steady in a long-term simultaneously.
In cement production process, the flue gas of being discharged by kiln tail preheater, grade is low, and flow is large, and dust content is high, comparatively large (the about 100g/Nm of dust concentration in waste gas
3), and the adhesiveness of dust is stronger.In order to reclaim this low-grade waste gas residual heat, be provided with kiln tail waste heat boiler (being called for short SP stove) at kiln tail.The bypass flue gas taken out by cement kiln tail smoke-box, sample relatively high, flow is medium, and dust content is high, dust concentration greatly (about 500g/Nm in waste gas
3), and the adhesiveness of dust is stronger.Bypass flue gas, as a kind of energy-conservation take-back model newly, is applied in production practices, is provided with tail bypass wind discharging exhaust-heat boiler (being called for short PH stove) at kiln tail.Containing a large amount of dust in waste heat flue gas, when flue gas carries out heat exchange by waste heat boiler, the surface being attached to boiler heat-transfer facial canal is in various degree hindered heat trnasfer, reduce the waste heat boiler thermal efficiency; The on-way resistance that flue gas flows in waste heat boiler simultaneously increases, thus the consumption of extra increase secondary energy sources.
Current cement kiln tail and tail bypass wind discharging exhaust-heat boiler, adopt vertical boiler mostly, and the heat transfer facial canal of vertical boiler adopts the horizontally-arranged layout of level, and this kind of easy dust stratification of structural thermal facial canal outer surface, can reduce boiler heat-transfer facial canal heat exchange efficiency after dust stratification is more.
Utility model content
The utility model is for the deficiencies in the prior art, a kind of cement kiln tail and tail bypass wind discharging exhaust-heat boiler are provided, heat transfer facial canal is changed into vertical vertical setting of types by the horizontally-arranged layout of level in prior art and is arranged by it, and equipped rapping-off-ash device bottom the heat transfer facial canal arranged at this vertical setting of types, make heat transfer facial canal be vertically one overall; It can thus be appreciated that: the utility model applies rapping bottom heat transfer facial canal, the dust stratification of heat-transfer area tube-surface can be made to fall successively from top to bottom, effectively reduce the superficial dust of heat transfer facial canal, thus maintain the heat transfer efficiency stability in the heat-transfer area pipe range phase course of work.
For realizing above technical purpose, the utility model will take following technical scheme:
A kind of cement kiln tail and tail bypass wind discharging exhaust-heat boiler, comprise arrange in vertical structure boiler body, be arranged at heat transfer facial canal in boiler body flue and heat transfer facial canal the rapping-off-ash device that is equipped with, described heat transfer facial canal is arranged in boiler body flue in vertical setting of types mode, each heat transfer facial canal is vertically being wholely set, and rapping-off-ash device is arranged on the bottom of heat transfer facial canal vertical direction or arranges near the bottom of heat transfer facial canal vertical direction.
As further improvement of the utility model, heat transfer facial canal described in the utility model hangs and is arranged on ventilation beam, and the two ends of ventilation beam are connected with the boiler steel frame for support pot furnace body respectively, are arranged in boiler body flue to make ventilation beam across ground; The plane development direction of described heat transfer facial canal parallels with the length bearing of trend of boiler steel frame.
As further improvement of the utility model, heat transfer facial canal described in the utility model is hung by suspension gear and is arranged on ventilation beam; This suspension gear comprises flap seat, connecting plate and shaft assembly; Flap seat is fixedly connected with ventilation beam, and connecting plate one end is connected with flap seat by shaft assembly, and the other end is then connected with for clamping the folder horse device installing the facial canal that conducts heat by shaft assembly.
As further improvement of the utility model, suspension gear described in the utility model is two groups, and rapping-off-ash device is one; And rapping-off-ash device is arranged along the middle part of boiler body flue, and two groups of suspension gears are arranged on the both sides of rapping-off-ash device symmetrically; Often organize in suspension gear, comprise the suspension gear that several are arranged with heat transfer facial canal one_to_one corresponding.
As further improvement of the utility model, folder horse device described in the utility model comprises two panels folder horse, is respectively wide folder horse, narrow folder horse; On the opposite face of wide folder horse, narrow folder horse, all correspondence is provided with the half round concave identical with facial canal vertical direction pitch of conducting heat, to make wide folder horse, narrow folder horse anchor ear in the surface of heat transfer facial canal.
As further improvement of the utility model, rapping-off-ash device described in the utility model comprises support, turning cylinder, sealed transmission case, inner vibrating rod and outside vibrating rod, wherein: inner vibrating rod is fixedly mounted on the bottom of heat transfer facial canal vertical direction; Sealed transmission case is welded on the lateral wall of boiler body, and is provided with outside vibrating rod in sealed transmission case, and this outside vibrating rod and atmosphere side are provided with flexible sealing assembly; Described outside vibrating rod and described inner vibrating rod are arranged at boiler body flue inner coaxial ground intimate contact; Described turning cylinder is connected with the clutch end of frequency modulation motor, and turning cylinder is supported by the support be arranged in boiler body flue, this turning cylinder is sequentially set with some beater assemblies.
As further improvement of the utility model, heat transfer facial canal described in the utility model is set to the serpentine configuration of horizontal reciprocating complications.
As further improvement of the utility model, heat transfer facial canal described in the utility model is many groups, and each group heat transfer facial canal is parallel to each other.
As further improvement of the utility model, heat transfer facial canal described in the utility model is for suitable row or be staggered in arrangement.
According to above technical scheme, relative to prior art, the utility model has following advantage:
1. the utility model changes in vertical boiler the arrangement of the facial canal that conducts heat, and changes over vertical setting of types by horizontally-arranged, and is equipped with ash removal equipment for flapping bottom heat transfer facial canal, when making vibration dust-cleaning, heat transfer facial canal carries out deashing operation as a whole, and vibration passing is effective, and ash-removal effect is obvious; Dust stratification on it from top to bottom falls successively, can prevent heat-transfer area tube-surface dust stratification, effectively avoids the phenomenon producing the heat transfer facial canal heat exchange efficiency reduction caused thus.
2. simple and compact for structure, good seal performance, reduces system air leakage amount, significantly improves heat exchange efficiency.
3. stable equipment operation is reliable, reduces system maintenance work amount, reduces equipment O&M cost.
4. the mechanical means rapping of the adjustable frequency (frequency conversion), effectively reduces described waste heat boiler from power consumption, improves the economic benefit of afterheat boiler system further.
Accompanying drawing explanation
Fig. 1 is the integral arrangement schematic diagram of a kind of cement kiln tail and tail bypass wind discharging exhaust-heat boiler heat transfer facial canal overhung construction;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is heat transfer facial canal and clamping plate and inner vibrating rod connection diagram;
Fig. 4 is heat transfer facial canal and folder horse device and suspension gear connection diagram;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is rapping-off-ash apparatus structure schematic diagram;
Fig. 7 is the left view of Fig. 6;
In figure: 1. boiler body, 2. boiler steel frame, 3. conduct heat facial canal, 4. presss from both sides horse device, 5. suspension gear, 6. ventilation beam, 7. rapping-off-ash device, 8. shaft assembly, 9. flap seat, 10. connecting plate, 11. inner vibrating rods, 12. clamping plate, 13. beater assemblies, 14. supports, 15. turning cylinders, 16. sealed transmission cases, 17. outside vibrating rods, 18. flexible sealing assemblies, 19. variable-frequency motors.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further.Following detailed description of the invention should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model.It should be noted that, these accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
The utility model is a kind of cement kiln tail and tail bypass wind discharging exhaust-heat boiler, main improvement is, the heat transfer arrangement of facial canal and the design of rapping-off-ash device, particularly, as shown in figs. 1-7, cement kiln tail described in the utility model and tail bypass wind discharging exhaust-heat boiler comprise: boiler body 1, boiler steel frame 2, heat transfer facial canal 3, folder horse device 4, suspension gear 5, ventilation beam 6 and rapping-off-ash device 7, the described heat transfer facial canal 3 be arranged in boiler body flue is set to the structure parallel with boiler steel frame 2, described rapping-off-ash device 7 is arranged on the position bottom heat transfer facial canal (screen) 3 vertical direction, described heat transfer facial canal 3 is by surperficial in it with folder horse device 4 anchor ear of its major diameter fit, described folder horse device 4 hangs on the shaft assembly 8 of suspension gear 5 by the circular groove on its top, the bottom surface being welded in ventilation beam 6 vertical direction separated by a distance mutually between described suspension gear 5.
Described heat transfer facial canal 3 is tubulose (or membrane tube, screen shape) structure, is set to the serpentine configuration of horizontal reciprocating complications, and heat transfer facial canal 3 is suspended in boiler steel frame 2 ventilation beam 6 bottom surface by folder horse device 4 and suspension gear 5.Described heat transfer facial canal suspension gear 5, comprises flap seat 9, connecting plate 10 and shaft assembly 8, and flap seat 9 is welded in the bottom surface of ventilation beam 6 vertical direction, and connecting plate 10 is connected the other end by shaft assembly 8 one end with flap seat 9 and is connected with folder horse device 4.
Described heat transfer facial canal 3 is arranged on same plane (along row) or Different Plane (stagger arrangement), and described heat transfer facial canal 3 suspension gear 5 is vertical with the ventilating and cooling direction of described ventilation beam 6; The ventilating and cooling direction of described ventilation beam 6 moves towards vertical with boiler steel frame 2; The suspention parallel to each other of heat transfer facial canal 3 is arranged in boiler body flue, separated by a distance mutually between described each heat transfer facial canal 3.
As shown in Figure 4,5, described heat transfer facial canal 3 is by surperficial in it with folder horse device 4 anchor ear of its major diameter fit, described folder horse device 4 hangs on the shaft assembly 8 of suspension gear 5 by the circular groove on its top, the bottom surface being welded in ventilation beam 6 vertical direction separated by a distance mutually between described suspension gear 5.
As shown in Figure 3, the bottom of described heat transfer facial canal 3 vertical direction is provided with inner vibrating rod 11, and described inner vibrating rod 11 is welded on bottom most end two (or several) comb of heat transfer facial canal 3 vertical direction by clamping plate 12.
Rapping-off-ash device 7 described in the utility model, is arranged on the bottom of heat transfer facial canal 3 vertical direction.Described rapping-off-ash device 7, as shown in Figure 6,7, comprises beater assembly 13, support 14, turning cylinder 15, sealed transmission case 16, outside vibrating rod 17, and turning cylinder 15 arranges on the support 14, and described power transmission shaft 15 is sequentially set with some beater assemblies 13; Sealed transmission case 16 is welded on boiler body lateral wall, in described sealed transmission case, 16 are provided with outside vibrating rod 17, described outside vibrating rod 17 is provided with special flexible sealing assembly 18 with atmosphere side, and described outside vibrating rod 17 and described inner vibrating rod 11 are arranged in concentric (on same center line) intimate contact inside boiler body flue.
The utility model also relates to a kind of rapping method of cement kiln tail and tail bypass wind discharging exhaust-heat boiler heat transfer facial canal overhung construction simultaneously, described rapping method is the mechanical means adopting the adjustable frequency, knocked by the order of some beater assemblies 13 of described rapping-off-ash device 7, make heat transfer facial canal 3 with certain frequency vibration, dust adhered thereto is shaken.The mechanical means of the described adjustable frequency, drives described rapping-off-ash device 7 turning cylinder 15 to realize by variable-frequency motor 19.
Described rapping method is the vibratory impulse sequentially described outside vibrating rod 17 being carried out to horizontal direction by some beater assemblies 13 of described rapping-off-ash device 7, give by outside vibrating rod 17 conduction the inside vibrating rod 11 be welded on heat transfer facial canal 3, and then heat transfer facial canal 3 is vibrated with certain frequency.
Cement kiln tail and tail bypass wind discharging exhaust-heat boiler adopt vertical frame structure, and heat transfer facial canal 3 vertically depending is in ventilation beam 6 bottom surface of boiler steel frame 2, and the smoke inlet of waste heat boiler is followed successively by steam superheater to exhanst gas outlet, evaporimeter and soft water heater.
Heat transfer facial canal 3 of the present utility model adopts snakelike light pipe or membrane tube, adopt between heat transfer facial canal 3 and heat transfer facial canal 3 along arranging or being staggered in arrangement, arranged by the twin shaft overhung construction of vertical direction, heat transfer facial canal 3 can Free Slosh along the horizontal direction of ventilation beam 6 ventilating and cooling, the ash-removal effect of effective raising rapping-off-ash device 7, improves the thermal efficiency of boiler body greatly.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned technological means, also comprises the technical scheme be made up of above technical characteristic.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to right.
Claims (9)
1. a cement kiln tail and tail bypass wind discharging exhaust-heat boiler, comprise arrange in vertical structure boiler body, be arranged at heat transfer facial canal in boiler body flue and heat transfer facial canal the rapping-off-ash device that is equipped with, it is characterized in that, described heat transfer facial canal is arranged in boiler body flue in vertical setting of types mode, each heat transfer facial canal is vertically being wholely set, and rapping-off-ash device is arranged on the bottom of heat transfer facial canal vertical direction or arranges near the bottom of heat transfer facial canal vertical direction.
2. cement kiln tail according to claim 1 and tail bypass wind discharging exhaust-heat boiler, it is characterized in that, heat transfer facial canal hangs and is arranged on ventilation beam, and the two ends of ventilation beam are connected with the boiler steel frame for support pot furnace body respectively, are arranged in boiler body flue to make ventilation beam across ground; The plane development direction of described heat transfer facial canal parallels with the length bearing of trend of boiler steel frame.
3. cement kiln tail according to claim 2 and tail bypass wind discharging exhaust-heat boiler, is characterized in that, described heat transfer facial canal is hung by suspension gear and is arranged on ventilation beam; This suspension gear comprises flap seat, connecting plate and shaft assembly; Flap seat is fixedly connected with ventilation beam, and connecting plate one end is connected with flap seat by shaft assembly, and the other end is then connected with for clamping the folder horse device installing the facial canal that conducts heat by shaft assembly.
4. cement kiln tail according to claim 3 and tail bypass wind discharging exhaust-heat boiler, is characterized in that, described suspension gear is two groups, and rapping-off-ash device is one; And rapping-off-ash device is arranged along the middle part of boiler body flue, and two groups of suspension gears are arranged on the both sides of rapping-off-ash device symmetrically; Often organize in suspension gear, comprise the suspension gear that several are arranged with heat transfer facial canal one_to_one corresponding.
5. the cement kiln tail according to claim 3 or 4 and tail bypass wind discharging exhaust-heat boiler, is characterized in that, described folder horse device comprises two panels folder horse, is respectively wide folder horse, narrow folder horse; On the opposite face of wide folder horse, narrow folder horse, all correspondence is provided with the half round concave identical with facial canal vertical direction pitch of conducting heat, to make wide folder horse, narrow folder horse anchor ear in the surface of heat transfer facial canal.
6. cement kiln tail according to claim 1 and tail bypass wind discharging exhaust-heat boiler, it is characterized in that, described rapping-off-ash device comprises support, turning cylinder, sealed transmission case, inner vibrating rod and outside vibrating rod, wherein: inner vibrating rod is fixedly mounted on the bottom of heat transfer facial canal vertical direction; Sealed transmission case is welded on the lateral wall of boiler body, and is provided with outside vibrating rod in sealed transmission case, and this outside vibrating rod and atmosphere side are provided with flexible sealing assembly; Described outside vibrating rod and described inner vibrating rod are arranged at boiler body flue inner coaxial ground intimate contact; Described turning cylinder is connected with the clutch end of frequency modulation motor, and turning cylinder is supported by the support be arranged in boiler body flue, this turning cylinder is sequentially set with some beater assemblies.
7. cement kiln tail according to claim 1 and tail bypass wind discharging exhaust-heat boiler, is characterized in that, described heat transfer facial canal is set to the serpentine configuration of horizontal reciprocating complications.
8. cement kiln tail according to claim 7 and tail bypass wind discharging exhaust-heat boiler, is characterized in that, described heat transfer facial canal is many groups, and each group heat transfer facial canal is parallel to each other.
9. cement kiln tail according to claim 8 and tail bypass wind discharging exhaust-heat boiler, is characterized in that, described heat transfer facial canal is for suitable row or be staggered in arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112723.0U CN204534508U (en) | 2015-02-16 | 2015-02-16 | Cement kiln tail and tail bypass wind discharging exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112723.0U CN204534508U (en) | 2015-02-16 | 2015-02-16 | Cement kiln tail and tail bypass wind discharging exhaust-heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204534508U true CN204534508U (en) | 2015-08-05 |
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ID=53748507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520112723.0U Withdrawn - After Issue CN204534508U (en) | 2015-02-16 | 2015-02-16 | Cement kiln tail and tail bypass wind discharging exhaust-heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204534508U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654263A (en) * | 2015-02-16 | 2015-05-27 | 盐城市锅炉制造有限公司 | Kiln tail and bypath wind releasing residual heat boiler of cement kiln |
| WO2020029040A1 (en) * | 2018-08-06 | 2020-02-13 | 江苏东九重工股份有限公司 | Heat transfer tube bundle for flue-type waste heat boiler |
| WO2020029048A1 (en) * | 2018-08-06 | 2020-02-13 | 江苏东九重工股份有限公司 | Cement kiln rear portion and bypass waste heat boiler |
-
2015
- 2015-02-16 CN CN201520112723.0U patent/CN204534508U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654263A (en) * | 2015-02-16 | 2015-05-27 | 盐城市锅炉制造有限公司 | Kiln tail and bypath wind releasing residual heat boiler of cement kiln |
| WO2020029040A1 (en) * | 2018-08-06 | 2020-02-13 | 江苏东九重工股份有限公司 | Heat transfer tube bundle for flue-type waste heat boiler |
| WO2020029048A1 (en) * | 2018-08-06 | 2020-02-13 | 江苏东九重工股份有限公司 | Cement kiln rear portion and bypass waste heat boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150805 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |