CN103868085B - A kind of boiler high temperature bottom ash conveying device - Google Patents
A kind of boiler high temperature bottom ash conveying device Download PDFInfo
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- CN103868085B CN103868085B CN201410111408.6A CN201410111408A CN103868085B CN 103868085 B CN103868085 B CN 103868085B CN 201410111408 A CN201410111408 A CN 201410111408A CN 103868085 B CN103868085 B CN 103868085B
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Abstract
The invention discloses slag energy reclaiming method at the bottom of a kind of boiler high temperature bottom ash conveying device and boiler high temperature, it is characterized in that: described conveying device (2) comprises moldboard (3) and the moldboard axle (4) of the connection of some one, described moldboard axle (4) one end is movably connected on the base plate of described housing (1), the other end is fixedly connected with described moldboard (3) lower surface, described moldboard axle (4) drives described moldboard (3) reciprocally swinging, and described housing (1) is outside equipped with the drive unit for driving described moldboard axle (4) reciprocally swinging.Slag energy reclaiming method at the bottom of a kind of boiler high temperature bottom ash conveying device provided by the invention and boiler high temperature, high temperature bottom slag energy utilization rate is high, structure simple, few easy workout part, reliability are high, good airproof performance, high insulating effect, is applicable to wide popularization and application.
Description
Technical field
The present invention relates to a kind of boiler high temperature bottom ash conveying device, belong to the technical field of transmission equipment manufacture and energy recycling.
Background technology
Pulverized-coal fired boiler bottom slag conveying device, at present mainly wet type submerged slag conveyor and air-cooled dry-type slag discharging machine.Wet type submerged slag conveyor needs to consume a certain amount of water, device structure more complicated, runs problems such as likely producing water is quick-fried, water logging slag; And low to the comprehensive utilization value of end slag, in slag, the chemical energy of uncompleted burned carbon fails effectively to utilize, and the physical sensible heat in end slag is wasted.The bad adaptability that air-cooled dry-type slag discharging machine changes boiler slag amount, device structure are complicated, fault rate is high, reduction boiler efficiency of leaking out at the bottom of Boiler Furnace, and in slag, the chemical energy of uncompleted burned carbon fails effectively to utilize.
Current boiler energy recovery method is generally the waste heat in recovery boiler flue gas, and the heat in boiler bottom slag is not then utilized, and makes the energy utilization rate of boiler on the low side, causes the waste of the energy.
Summary of the invention
Technical problem to be solved by this invention is, provides that a kind of high temperature bottom slag energy utilization rate is high, structure is simple, few easy workout part, reliability are high, the boiler high temperature bottom ash conveying device of good airproof performance, high insulating effect and a kind ofly fully utilize slag energy reclaiming method at the bottom of the boiler high temperature of chemical energy and physical sensible heat in high temperature bottom slag.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of boiler high temperature bottom ash conveying device, it is characterized in that: comprising: housing, the conveying device be positioned on described Housing Base, the top board of described housing is provided with the opening be connected with slag slag-drip opening at the bottom of boiler high temperature, the base plate of described housing is also provided with slag notch; Described conveying device comprises moldboard and the moldboard axle of the connection of some one, described moldboard axle one end is movably connected on the base plate of described housing, the other end is fixedly connected with described moldboard lower surface, described moldboard axle drives described moldboard reciprocally swinging, and described housing is outside equipped with the drive unit for driving described moldboard axle reciprocally swinging; Some described moldboards are arranged in parallel and perpendicular with high temperature bottom slag throughput direction, and adjacent described moldboard is shaft staggered is positioned at the two ends of adjacent described moldboard or staggered 1/4 ~ 1/3 length place being positioned at adjacent described moldboard.
Described moldboard comprises the high-end low side with being positioned on the left of described moldboard axle be positioned on the right side of described moldboard axle, described high-end height is greater than the height of described low side, the lower surface of described moldboard is the rectangle of rectangle or tool radian, the upper surface of described moldboard is the cambered surface at tool inclination angle or the rectangle at tool inclination angle, the right flank of described moldboard is rectangle or square, and the left surface of described moldboard is straight line.
Describedly high-endly be positioned on the right side of described moldboard axle, described low side is positioned on the left of described moldboard axle, described moldboard cross section pre-large post-small (material moving direction is front), namely right large left little.
Described moldboard is equal with moldboard axle number.
Space is provided with between described moldboard and described Housing Base.
Described housing is connected with at the bottom of described boiler high temperature, slag slag-drip opening is airtight, the length of described housing is greater than the length of slag slag-drip opening at the bottom of described boiler high temperature, described conveying device is positioned at the below of slag slag-drip opening at the bottom of described boiler high temperature, and described slag notch is arranged at the high temperature bottom slag throughput direction of described Housing Base foremost.
Be connected with next stage device is airtight below described slag notch.
Described drive unit comprises cylinder or oil cylinder or motor.
Slag energy reclaiming method at the bottom of a kind of boiler high temperature, is characterized in that: comprise the following steps:
Step one: slag at the bottom of boiler high temperature directly falls into the tight high temperature bottom slag conveying device of sealing, carbon imperfect combustion in slag, Thorough combustion in high temperature bottom slag conveying device, and the chemical energy of carbon is reclaimed by boiler;
Step 2: the high temperature bottom slag after the chemical energy recovery of carbon, enters end slag cooler by high temperature bottom slag conveying device, condensate pump supply slag cooler cooling water of the described end, cooled by high temperature bottom slag, its physical sensible heat is by condensed water in boiler system recoveries.
A kind of boiler high temperature bottom ash conveying device provided by the invention, housing and slag slag-drip opening at the bottom of boiler high temperature be airtight to be connected and full-closed structure that below slag notch, the design that be connected airtight with next stage device achieves boiler high temperature bottom ash conveying device, avoid at the bottom of Boiler Furnace and leak out, the radiation heat loss of slag slag-drip opening at the bottom of boiler high temperature is significantly reduced, conveying device is positioned at the below of slag slag-drip opening at the bottom of boiler high temperature, and moldboard axle drives moldboard left and right reciprocally swinging, and then promotion high temperature bottom slag is fed forward, in course of conveying, high temperature bottom slag temperature is kept to be not less than 600 DEG C, then imperfect combustion in end slag carbon can burn, the low slag temperature of high temperature that the present invention discharges from high temperature bottom slag slag-drip opening is about 850 DEG C, directly fall into the high temperature bottom slag conveying device that sealing is tight, end slag temperature can be made to remain on more than 800 DEG C, end slag moves forward while burn in conveying device, and considerable time is stopped in conveying device, carbon imperfect combustion in end slag can Thorough combustion, heat reenters boiler furnace, the chemical energy of carbon is reclaimed, physical sensible heat in the end of the present invention slag is not wasted, and the follow-up equipment for system utilizes physical sensible heat to create condition, is conducive to the energy-saving and cost-reducing of Power Plant, because high temperature bottom slag has internal friction, therefore moldboard unification to high temperature bottom slag throughput direction (forward, when swinging together to the right), promote end slag charge bed ensemble to move forward, then some moldboards are divided into some batches of intervals and swing backward and return or unified to return, high-end height due to moldboard is greater than the design of the height of low side, easily through high temperature bottom slag when making moldboard return, simultaneously because of the effect of high temperature bottom slag internal friction each other, make returning of moldboard that high temperature bottom slag can not be driven to retreat, like this, by moldboard constantly by reciprocally swinging before and after regulation order, thus the high temperature bottom slag realized in housing is fed forward, be provided with the design in space between moldboard and Housing Base, make end slag Housing Base having all the time one deck do not move, mobile high temperature bottom slag and base plate are separated, greatly can reduce the wearing and tearing of Housing Base, under normal circumstances, moldboard and Housing Base are among end slag, can avoid the gravitational thrusts of the low slag of high temperature being subject to falling from eminence, avoid moldboard and Housing Base to be damaged, reduce the fault rate of equipment, extend the service life of equipment.A kind of boiler high temperature bottom ash conveying device provided by the invention, high temperature bottom slag energy utilization rate is high, structure simple, few easy workout part, reliability are high, good airproof performance, high insulating effect, is applicable to wide popularization and application.
Slag energy reclaiming method at the bottom of a kind of boiler high temperature provided by the invention, the chemical energy of physical sensible heat in slag at the bottom of boiler high temperature and uncompleted burned carbon is recycled, the high temperature bottom slag conveying device that totally-enclosed sealing is tight, the radiation heat loss of slag slag-drip opening at the bottom of boiler high temperature can be reduced, be conducive to the energy-saving and cost-reducing of Power Plant, simultaneity factor does not consume water, has water saving effect;
Below for a 600MW unit, analyze its economic benefit:
Boiler slag removal amount 7.3t/h, slag mean carbon content 1.5%, unburned carbon reduces amplitude and calculates by 80%, and Spring Festival holidays province-norm coal is about 500t (reduced value);
High temperature bottom slag 7.3t/h physical sensible heat is about 1600kW, reduces the conversion Spring Festival holidays province-norm coal that draws gas and is about 400t;
The radiation heat loss of boiler slag removal mouth reduces about 500kW, and conversion Spring Festival holidays province-norm coal is about 300t;
Three totals above, its direct economic benefit is saved mark coal every year and is about 1200t.
A kind of boiler high temperature bottom ash conveying device provided by the invention, high temperature bottom slag energy utilization rate is high, structure simple, few easy workout part, reliability are high, good airproof performance, high insulating effect, is applicable to wide popularization and application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the enlarged drawing of part A in Fig. 1;
Fig. 3 is the top view (for move in batches, the direction of motion is contrary with high temperature bottom slag throughput direction and the shaft staggered two ends being positioned at moldboard of moldboard to moldboard motion state) of the duty of Fig. 1;
Fig. 4 is the top view (for move in batches, the direction of motion is identical with high temperature bottom slag throughput direction and the shaft staggered two ends being positioned at moldboard of moldboard to moldboard motion state) of the duty of Fig. 1;
Fig. 5 is the top view (moldboard motion state is unified movement and shaft staggered 1/4 ~ 1/3 length place being positioned at moldboard of moldboard) of the duty of Fig. 1;
Fig. 6 is the process chart of slag energy reclaiming method at the bottom of the boiler high temperature of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment 1:
As Figure 1-4, a kind of boiler high temperature bottom ash conveying device, it is characterized in that: comprising: housing 1, the conveying device 2 be positioned on described housing 1 base plate, the top board of described housing 1 is provided with the opening 6 be connected with slag slag-drip opening 5 at the bottom of boiler high temperature, the base plate of described housing 1 is also provided with slag notch 7; Described conveying device 2 comprises moldboard 3 and the moldboard axle 4 of the connection of some one, described moldboard axle 4 one end is movably connected on the base plate of described housing 1, the other end is fixedly connected with described moldboard 3 lower surface, described moldboard axle 4 drives described moldboard 3 reciprocally swinging, and described housing 1 is outside equipped with the drive unit for driving described moldboard axle 4 reciprocally swinging; Some described moldboards 3 are arranged in parallel and perpendicular with high temperature bottom slag throughput direction, the adjacent described staggered two ends being positioned at adjacent described moldboard 3 of moldboard axle 4.
Described moldboard 3 comprises the low side 8 being positioned at high-end 9 on the right side of described moldboard axle 4 and being positioned on the left of described moldboard axle 4, the described height of high-end 9 is greater than the height of described low side 8, the lower surface of described moldboard 3 is the rectangle of rectangle or tool radian, the upper surface of described moldboard 3 is the cambered surface at tool inclination angle or the rectangle at tool inclination angle, the right flank of described moldboard 3 is rectangle or square, and the left surface of described moldboard 3 is straight line.
Described moldboard 3 is equal with moldboard axle 4 number.
Space 10 is provided with between described moldboard 3 and described housing 1 base plate.
Described housing 1 is connected with at the bottom of described boiler high temperature, slag slag-drip opening 5 is airtight, the length of described housing 1 is greater than the length of slag slag-drip opening 5 at the bottom of described boiler high temperature, described conveying device 2 is positioned at the below of slag slag-drip opening 5 at the bottom of described boiler high temperature, and described slag notch 7 is arranged at the high temperature bottom slag throughput direction of described housing 1 base plate foremost.
Described drive unit is cylinder.
The moldboard motion state of the present embodiment is for move in batches.
The operation principle of the present embodiment is: high temperature bottom slag slag slag-drip opening 5 at the bottom of boiler high temperature that boiler is discharged, directly fall into the substrate of housing 1, housing 1 base plate is arranged some by necessarily regularly arranged moldboard 3, moldboard 3 high-end 9 height be greater than the height of low side 8, the position interlaced arrangement of adjacent moldboard axle 4, driving mechanism, by moldboard axle 4, makes moldboard 3 reciprocally swinging before and after moldboard axle 4.
By all moldboards 3 by high temperature bottom slag throughput direction successively called after L1, R1, L2, R2, L3, R3, L4, R4, L5, R5, L6, R6.
First, all moldboards 3 are simultaneously unified to be swung to high temperature bottom slag throughput direction, and because high temperature bottom slag has internal friction, moldboard 3 promotes High-temperature Bottom slag charge bed ensemble and moves forward, then all moldboards 3 are divided into some batches of intervals and swing backward and return, and swinging the step returned backward is:
The first step: L1, L3, L5 return arrival and retreat spacing;
Second step: R1, R3, R5 return arrival and retreat spacing;
3rd step: L2, L4, L6 return arrival and retreat spacing;
4th step: R2, R4, R6 return arrival and retreat spacing;
Then complete an impulse stroke, the rest may be inferred.
Cross section due to moldboard 3 is pre-large post-small, easily through high temperature bottom slag, simultaneously because of the effect of high temperature bottom slag internal friction each other, make returning of every a collection of moldboard that high temperature bottom slag can not be driven to retreat, like this, by moldboard 3 constantly by reciprocally swinging before and after regulation order, thus the high temperature bottom slag realized in housing 1 is fed forward.
As shown in Figure 6, slag energy reclaiming method at the bottom of a kind of boiler high temperature, is characterized in that: comprise the following steps:
Step one: slag at the bottom of boiler high temperature directly falls into the tight high temperature bottom slag conveying device of sealing, carbon imperfect combustion in slag, Thorough combustion in high temperature bottom slag conveying device, and the chemical energy of carbon is reclaimed by boiler;
Step 2: the high temperature bottom slag after the chemical energy recovery of carbon, end slag cooler 12 is entered by high temperature bottom slag conveying device, condensate pump 13 supplies slag cooler 12 cooling water of the described end, and cooled by high temperature bottom slag, its physical sensible heat is reclaimed by condensed water in boiler system 14.
The technological process of energy reclaiming method of the present invention is: the high temperature bottom slag (about 850 DEG C) that slag slag-drip opening 5 at the bottom of boiler high temperature is discharged directly falls into the tight conveying device 2 of sealing, carbon imperfect combustion in slag, Thorough combustion in conveying device 2, heat enters boiler furnace, the chemical energy of carbon is reclaimed, the conveying device 2 that totally-enclosed sealing is tight, makes the radiation heat loss of slag slag-drip opening 5 at the bottom of boiler high temperature significantly reduce simultaneously.
High temperature bottom slag after the chemical energy recovery of carbon, end slag cooler 12 is entered by conveying device 2, condensate pump 13 supplies end slag cooler 12 cooling water, high temperature bottom slag is cooled, condensate water after intensification enters the flow process after low-pressure heater 15, and the physical sensible heat of slag is by condensed water in boiler system recoveries.
Embodiment 2:
As shown in Figure 1, Figure 2, Figure 5, a kind of boiler high temperature bottom ash conveying device, it is characterized in that: comprising: housing 1, the conveying device 2 be positioned on described housing 1 base plate, the top board of described housing 1 is provided with the opening 6 be connected with slag slag-drip opening 5 at the bottom of boiler high temperature, the base plate of described housing 1 is also provided with slag notch 7; Described conveying device 2 comprises moldboard 3 and the moldboard axle 4 of the connection of some one, described moldboard axle 4 one end is movably connected on the base plate of described housing 1, the other end is fixedly connected with described moldboard 3 lower surface, described moldboard axle 4 drives described moldboard 3 reciprocally swinging, and described housing 1 is outside equipped with the drive unit for driving described moldboard axle 4 reciprocally swinging; Some described moldboards 3 are arranged in parallel and perpendicular with high temperature bottom slag throughput direction, the adjacent described staggered 1/3 length place being positioned at adjacent described moldboard 3 of moldboard axle 4.
Described moldboard 3 comprises the low side 8 being positioned at high-end 9 on the right side of described moldboard axle 4 and being positioned on the left of described moldboard axle 4, the described height of high-end 9 is greater than the height of described low side 8, the lower surface of described moldboard 3 is the rectangle of rectangle or tool radian, the upper surface of described moldboard 3 is the cambered surface at tool inclination angle or the rectangle at tool inclination angle, the right flank of described moldboard 3 is rectangle or square, and the left surface of described moldboard 3 is straight line.
Described moldboard 3 is equal with moldboard axle 4 number.
Space 10 is provided with between described moldboard 3 and described housing 1 base plate.
Described housing 1 is connected with at the bottom of described boiler high temperature, slag slag-drip opening 5 is airtight, the length of described housing 1 is greater than the length of slag slag-drip opening 5 at the bottom of described boiler high temperature, described conveying device 2 is positioned at the below of slag slag-drip opening 5 at the bottom of described boiler high temperature, and described slag notch 7 is arranged at the high temperature bottom slag throughput direction of described housing 1 base plate foremost.
Described drive unit is oil cylinder.
The moldboard motion state of the present embodiment is unified movement.
The operation principle of the present embodiment is: high temperature bottom slag slag slag-drip opening 5 at the bottom of boiler high temperature that boiler is discharged, directly fall into the substrate of housing 1, housing 1 base plate is arranged some by necessarily regularly arranged moldboard 3, the cross section of moldboard 3 is pre-large post-small (material moving direction is front), the position interlaced arrangement of adjacent moldboard axle 4, is positioned at 1/3 length place of adjacent described moldboard 3.Drive unit is by moldboard axle 4, make all moldboards 3 reciprocally swinging before and after moldboard axle 4 is synchronous, when moldboard 3 swings, every block moldboard with moldboard axle 4 for separation, be divided into swing part and backward swing part forward, because all moldboards are all synchronous front and back reciprocally swingings, the high temperature bottom slag that swing part has internal friction promotion corresponding because of material forward moves forward, backward swing part due to the cross section of moldboard 3 be pre-large post-small, material can not be driven to move backward easily through high temperature bottom slag, by moldboard 3 constantly synchronous front and back reciprocally swinging, the material realized in housing 1 is fed forward.
Same, there is certain gap between the base plate of moldboard 3 and housing 2, the end slag that housing 2 base plate has one deck not move all the time, the mobile bed of material and base plate are separated, greatly can reduce the wearing and tearing of housing 2 base plate.
Same, housing 2 is the tight structures of the totally-enclosed sealing that is connected with slag slag-drip opening 5 at the bottom of boiler high temperature, external insulation.
As shown in Figure 6, slag energy reclaiming method at the bottom of a kind of boiler high temperature, is characterized in that: comprise the following steps:
Step one: slag at the bottom of boiler high temperature directly falls into the tight high temperature bottom slag conveying device of sealing, carbon imperfect combustion in slag, Thorough combustion in high temperature bottom slag conveying device, and the chemical energy of carbon is reclaimed by boiler;
Step 2: the high temperature bottom slag after the chemical energy recovery of carbon, end slag cooler 12 is entered by high temperature bottom slag conveying device, condensate pump 13 supplies slag cooler 12 cooling water of the described end, and cooled by high temperature bottom slag, its physical sensible heat is reclaimed by condensed water in boiler system 14.
The technological process of energy reclaiming method of the present invention is: the high temperature bottom slag (about 850 DEG C) that slag slag-drip opening 5 at the bottom of boiler high temperature is discharged directly falls into the tight conveying device 2 of sealing, carbon imperfect combustion in slag, Thorough combustion in conveying device 2, heat enters boiler furnace, the chemical energy of carbon is reclaimed, the conveying device 2 that totally-enclosed sealing is tight, makes the radiation heat loss of slag slag-drip opening 5 at the bottom of boiler high temperature significantly reduce simultaneously.
High temperature bottom slag after the chemical energy recovery of carbon, end slag cooler 12 is entered by conveying device 2, condensate pump 13 supplies end slag cooler 12 cooling water, high temperature bottom slag is cooled, condensate water after intensification enters the flow process after low-pressure heater 15, and the physical sensible heat of slag is by condensed water in boiler system recoveries.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a boiler high temperature bottom ash conveying device, it is characterized in that: comprising: housing (1), the conveying device (2) be positioned on described housing (1) base plate, the top board of described housing (1) is provided with the opening (6) be connected with slag slag-drip opening (5) at the bottom of boiler high temperature, the base plate of described housing (1) is also provided with slag notch (7); Described conveying device (2) comprises moldboard (3) and the moldboard axle (4) of the connection of some one, described moldboard axle (4) one end is movably connected on the base plate of described housing (1), the other end is fixedly connected with described moldboard (3) lower surface, described moldboard axle (4) drives described moldboard (3) reciprocally swinging, and described housing (1) is outside equipped with the drive unit for driving described moldboard axle (4) reciprocally swinging; Some described moldboards (3) are arranged in parallel and perpendicular with high temperature bottom slag throughput direction, and adjacent described moldboard axle (4) is staggered is positioned at the two ends of adjacent described moldboard (3) or staggered 1/4 ~ 1/3 length place being positioned at adjacent described moldboard (3).
2. a kind of boiler high temperature bottom ash conveying device according to claim 1, it is characterized in that: described moldboard (3) comprises high-end (9) that are positioned at described moldboard axle (4) right side and the low side (8) being positioned at described moldboard axle (4) left side, the height of described high-end (9) is greater than the height of described low side (8), the lower surface of described moldboard (3) is the rectangle of rectangle or tool radian, the upper surface of described moldboard (3) is the cambered surface at tool inclination angle or the rectangle at tool inclination angle, the right flank of described moldboard (3) is rectangle or square, the left surface of described moldboard (3) is straight line.
3. a kind of boiler high temperature bottom ash conveying device according to claim 1, is characterized in that: described moldboard (3) is equal with moldboard axle (4) number.
4. a kind of boiler high temperature bottom ash conveying device according to claim 1, is characterized in that: be provided with space (10) between described moldboard (3) and described housing (1) base plate.
5. a kind of boiler high temperature bottom ash conveying device according to claim 1, it is characterized in that: described housing (1) is connected with at the bottom of described boiler high temperature, slag slag-drip opening (5) is airtight, the length of described housing (1) is greater than the length of slag slag-drip opening (5) at the bottom of described boiler high temperature, described conveying device (2) is positioned at the below of slag slag-drip opening (5) at the bottom of described boiler high temperature, and described slag notch (7) is arranged at the high temperature bottom slag throughput direction of described housing (1) base plate foremost.
6. a kind of boiler high temperature bottom ash conveying device according to claim 1, is characterized in that: described drive unit comprises cylinder or oil cylinder or motor.
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| US4887539A (en) * | 1986-01-10 | 1989-12-19 | Mario Magaldi | Process and apparatus for continuous dry removal of bottom |
| CN1188533A (en) * | 1995-06-19 | 1998-07-22 | 马加莱狄研究与专利公司 | Conveyor/cooler of loose materials |
| CN201836909U (en) * | 2010-09-28 | 2011-05-18 | 圣火科技(河南)有限责任公司 | Air cooling and water cooling compsite dry-type deslagging device |
| CN202647800U (en) * | 2012-06-21 | 2013-01-02 | 付强 | Plough type scraper slag extractor |
| CN102954478A (en) * | 2012-12-12 | 2013-03-06 | 中国电力工程顾问集团华东电力设计院 | Air-water combined cooling dry slagging method and system of pulverized coal boiler |
| CN203810426U (en) * | 2014-03-24 | 2014-09-03 | 江苏省电力设计院 | Boiler high temperature bottom slag conveyer device |
-
2014
- 2014-03-24 CN CN201410111408.6A patent/CN103868085B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4887539A (en) * | 1986-01-10 | 1989-12-19 | Mario Magaldi | Process and apparatus for continuous dry removal of bottom |
| CN1188533A (en) * | 1995-06-19 | 1998-07-22 | 马加莱狄研究与专利公司 | Conveyor/cooler of loose materials |
| CN201836909U (en) * | 2010-09-28 | 2011-05-18 | 圣火科技(河南)有限责任公司 | Air cooling and water cooling compsite dry-type deslagging device |
| CN202647800U (en) * | 2012-06-21 | 2013-01-02 | 付强 | Plough type scraper slag extractor |
| CN102954478A (en) * | 2012-12-12 | 2013-03-06 | 中国电力工程顾问集团华东电力设计院 | Air-water combined cooling dry slagging method and system of pulverized coal boiler |
| CN203810426U (en) * | 2014-03-24 | 2014-09-03 | 江苏省电力设计院 | Boiler high temperature bottom slag conveyer device |
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Address after: 210009 Gulou District, Jiangsu, Nanjing new model road, No. 5 Applicant after: Chinese energy construction group Jiangsu Prov. Power Design Inst Co., Ltd Address before: 210009 Gulou District, Jiangsu, Nanjing new model road, No. 5 Applicant before: Jiangsu Electric Power Designing Institute |
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Free format text: CORRECT: APPLICANT; FROM: JIANGSU ELECTRIC POWER DESIGNING INST. TO: CHINA ENERGY ENGINEERING GROUPJIANGSU ELECTRIC POWER DESIGN INSTITUTE CO., LTD. |
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