CN103868085A - Boiler high-temperature bottom residue conveying device and boiler high-temperature bottom residue energy recycling method - Google Patents

Boiler high-temperature bottom residue conveying device and boiler high-temperature bottom residue energy recycling method Download PDF

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CN103868085A
CN103868085A CN201410111408.6A CN201410111408A CN103868085A CN 103868085 A CN103868085 A CN 103868085A CN 201410111408 A CN201410111408 A CN 201410111408A CN 103868085 A CN103868085 A CN 103868085A
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slag
moldboard
high temperature
conveying device
boiler
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CN103868085B (en
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范仁东
王志斌
赵峥
徐蕾
周伟朵
郝思红
张莲莺
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Jiangsu Electric Power Design Institute
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Jiangsu Electric Power Design Institute
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Abstract

The invention discloses a boiler high-temperature bottom residue conveying device and a boiler high-temperature bottom residue energy recycling method. The boiler high-temperature bottom residue conveying device and the boiler high-temperature bottom residue energy recycling method are characterized in that the conveying device (2) comprises a plurality of integrally-connected moldboards (3) and moldboard shafts (4), one ends of the moldboard shafts (4) are movably connected to a base board of a shell (1), the other ends of the moldboard shafts (4) are fixedly connected with the lower surfaces of the moldboards (3), the moldboard shafts (4) drive the moldboards (3) to perform reciprocated swinging, and a driving device for driving the moldboard shafts (4) to perform reciprocated swinging is arranged outside the shell (1). By means of the boiler high-temperature bottom residue conveying device and the boiler high-temperature bottom residue energy recycling method, the using rate of the high-temperature bottom residue energy is high, the structure is simple, quick-wear parts are fewer, the reliability is high, the sealing performance is good, and the heat preservation effect is good; and the boiler high-temperature bottom residue conveying device and the boiler high-temperature bottom residue energy recycling method are suitable for wide popularization and application.

Description

Slag energy reclaiming method at the bottom of a kind of boiler high temperature bottom ash conveying device and boiler high temperature
Technical field
The present invention relates to slag energy reclaiming method at the bottom of a kind of boiler high temperature bottom ash conveying device and boiler high temperature, belong to the technical field of transmission equipment manufacture and energy recycling.
Background technology
Pulverized-coal fired boiler bottom slag conveying device is mainly wet type submerged slag conveyor and air-cooled dry-type slag discharging machine at present.Wet type submerged slag conveyor need to consume a certain amount of water, device structure more complicated, move the problems such as water is quick-fried, water logging slag that likely produce; And the comprehensive utilization value to end slag is low, in slag, the chemical energy of uncompleted burned carbon fails effectively to utilize, and the physics sensible heat in end slag is wasted.Bad adaptability, device structure complexity, the fault rate of air-cooled dry-type slag discharging machine to boiler slag quantitative change is high, the 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 utilized, and makes the energy utilization rate of boiler on the low side, has caused 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, simple in structure, few easy workout part, reliability are high, slag energy reclaiming method at the bottom of the boiler high temperature bottom ash conveying device of good airproof performance, high insulating effect and a kind of boiler high temperature that fully utilizes chemical energy and physics 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, be positioned at the conveying device on described housing base plate, on the top board of described housing, be provided with and the opening that at the bottom of boiler high temperature, slag slag-drip opening is connected, on the base plate of described housing, be also provided with slag notch; Described conveying device comprises moldboard and the moldboard axle that some one connect, 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 are perpendicular with high temperature bottom slag throughput direction, shaft staggered two ends or staggered 1/4 ~ 1/3 length place that is positioned at adjacent described moldboard that is positioned at adjacent described moldboard of adjacent described moldboard.
Described moldboard comprises the low side that is positioned at the high-end of described moldboard axle right side and is positioned at described moldboard axle left side, 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.
The described high-end described moldboard axle right side that is positioned at, described low side is positioned at described moldboard axle left side, and described moldboard cross section pre-large post-small (material moving direction is front) is right large left little.
Described moldboard and moldboard axle number equate.
Between described moldboard and described housing base plate, be provided with space.
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 the high temperature bottom slag throughput direction that described slag notch is arranged at described housing base plate foremost.
Described slag notch below is connected with next stage device is airtight.
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 1: at the bottom of boiler high temperature, slag directly falls into the tight high temperature bottom slag conveying device of sealing, imperfect combustion carbon in slag, fully burning in high temperature bottom slag conveying device, the chemical energy of carbon is reclaimed by boiler;
Step 2: the high temperature bottom slag after the chemical energy of carbon reclaims, enter end slag cooler by high temperature bottom slag conveying device, condensate pump is supplied with slag cooler cooling water of the described end, and high temperature bottom slag is cooling, and its physics 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 slag notch below and the airtight design being connected of next stage device have realized the full-closed structure of boiler high temperature bottom ash conveying device, avoid leaking out at the bottom of Boiler Furnace, 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, keep high temperature bottom slag temperature to be not less than 600 DEG C, in end slag, imperfect combustion carbon can burn, the low slag temperature of high temperature that the present invention discharges from high temperature bottom slag slag-drip opening is 850 DEG C of left and right, directly fall into the tight high temperature bottom slag conveying device of sealing, can make end slag temperature remain on more than 800 DEG C, end slag is the burning while moving forward in conveying device, and stop considerable time in conveying device, carbon imperfect combustion in end slag can fully burn, heat reenters boiler furnace, the chemical energy of carbon is reclaimed, physics sensible heat in the end of the present invention slag is not wasted, and has created condition for the follow-up equipment of system utilizes physics sensible heat, 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, while swing together to the right), promoting end slag charge bed ensemble moves forward, then some moldboards are divided into some batches of intervals and swing backward and return or unified returning, because the high-end height of moldboard is greater than the design of the height of low side, when being returned, moldboard is easy to through high temperature bottom slag, simultaneously because of the high temperature bottom slag effect of internal friction each other, make returning of moldboard can not drive high temperature bottom slag to retreat, like this, by moldboard constantly in accordance with regulations order before and after reciprocally swinging, thereby the high temperature bottom slag of realizing in housing is fed forward, between moldboard and housing base plate, be provided with the design in space, make the end slag that has all the time one deck not move on housing base plate, mobile high temperature bottom slag and base plate are separated, can greatly reduce the wearing and tearing of housing base plate, under normal circumstances, moldboard and housing base plate, among end slag, can avoid the gravity of the low slag of high temperature that is subject to falling from eminence to impact, and avoid moldboard and housing base plate to be damaged, and have reduced the fault rate of equipment, have extended 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, simple in structure, 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 physics sensible heat and uncompleted burned carbon in slag at the bottom of boiler high temperature is recycled, the high temperature bottom slag conveying device that totally-enclosed sealing is tight, can reduce the radiation heat loss of slag slag-drip opening at the bottom of boiler high temperature, be conducive to the energy-saving and cost-reducing of Power Plant, simultaneity factor does not consume water, has water saving effect;
Taking a 600MW unit as example, analyze its economic benefit below:
Boiler slag removal amount 7.3t/h, slag mean carbon content 1.5%, unburned carbon reduction amplitude is calculated by 80%, the about 500t(reduced value of Spring Festival holidays province-norm coal);
The about 1600kW of high temperature bottom slag 7.3t/h physics sensible heat, reduces the about 400t of conversion Spring Festival holidays province-norm coal that draws gas;
The radiation heat loss of boiler slag removal mouth reduces about 500kW, the about 300t of conversion Spring Festival holidays province-norm coal;
Three totals above, its direct economic benefit is saved the about 1200t of mark coal every year.
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, simple in structure, few easy workout part, reliability are high, good airproof performance, high insulating effect, is applicable to wide popularization and application.
Brief description of the drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is the enlarged drawing of A part in Fig. 1;
Fig. 3 is the top view (moldboard motion state is motion in batches, and the direction of motion is contrary with high temperature bottom slag throughput direction and the shaft staggered two ends that are positioned at moldboard of moldboard) of the duty of Fig. 1;
Fig. 4 is the top view (moldboard motion state is motion in batches, and the direction of motion is identical with high temperature bottom slag throughput direction and the shaft staggered two ends that are positioned at moldboard of moldboard) of the duty of Fig. 1;
Fig. 5 is the top view (moldboard motion state is unified motion and shaft staggered 1/4 ~ 1/3 length place that is 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 present invention's boiler high temperature.
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, be positioned at the conveying device 2 on described housing 1 base plate, on the top board of described housing 1, be provided with and the opening 6 that at the bottom of boiler high temperature, slag slag-drip opening 5 is connected, on the base plate of described housing 1, be also provided with slag notch 7; Described conveying device 2 comprises moldboard 3 and the moldboard axle 4 that some one connect, described moldboard axle 4 one end are movably connected on the base plate of described housing 1, the other end is fixedly connected with described moldboard 3 lower surfaces, described moldboard axle 4 drives described moldboard 3 reciprocally swingings, and described housing 1 is outside equipped with the drive unit for driving described moldboard axle 4 reciprocally swingings; Some described moldboards 3 are arranged in parallel and are perpendicular with high temperature bottom slag throughput direction, the staggered two ends that are positioned at adjacent described moldboard 3 of adjacent described moldboard axle 4.
Described moldboard 3 comprise be positioned at described moldboard axle 4 right sides high-end 9 and be positioned at the low side 8 in described moldboard axle 4 left sides, described high-end 9 height 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 and moldboard axle 4 numbers equate.
Between described moldboard 3 and described housing 1 base plate, be provided with space 10.
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 the high temperature bottom slag throughput direction that described slag notch 7 is arranged at described housing 1 base plate foremost.
Described drive unit is cylinder.
The moldboard motion state of the present embodiment is motion 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 above the base plate of housing 1, on housing 1 base plate, arrange some by certain regularly arranged moldboard 3, high-end 9 height of moldboard 3 is 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 around moldboard axle 4 front and back reciprocally swingings.
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 and return backward, swing backward the step of returning to be:
The first step: L1, L3, L5 return to arrival and retreat spacing;
Second step: R1, R3, R5 return to arrival and retreat spacing;
The 3rd step: L2, L4, L6 return to arrival and retreat spacing;
The 4th step: R2, R4, R6 return to arrival and retreat spacing;
Complete an impulse stroke, the rest may be inferred.
Because the cross section of moldboard 3 is pre-large post-small, be easy to through high temperature bottom slag, simultaneously because of the high temperature bottom slag effect of internal friction each other, make returning of every a collection of moldboard can not drive high temperature bottom slag to retreat, like this, by moldboard 3 constantly in accordance with regulations order before and after reciprocally swinging, thereby the high temperature bottom slag of realizing 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 1: at the bottom of boiler high temperature, slag directly falls into the tight high temperature bottom slag conveying device of sealing, imperfect combustion carbon in slag, fully burning in high temperature bottom slag conveying device, the chemical energy of carbon is reclaimed by boiler;
Step 2: the high temperature bottom slag after the chemical energy of carbon reclaims, enter end slag cooler 12 by high temperature bottom slag conveying device, condensate pump 13 is supplied with slag cooler 12 cooling waters of the described end, and high temperature bottom slag is cooling, and its physics 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 (850 DEG C of left and right) that at the bottom of boiler high temperature, slag slag-drip opening 5 is discharged directly falls into the tight conveying device 2 of sealing, imperfect combustion carbon in slag, fully burning 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 of carbon reclaims, enter end slag cooler 12 by conveying device 2, condensate pump 13 is supplied with end slag cooler 12 cooling waters, high temperature bottom slag is cooling, condensate water after intensification enters the flow process after low-pressure heater 15, and the physics 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, be positioned at the conveying device 2 on described housing 1 base plate, on the top board of described housing 1, be provided with and the opening 6 that at the bottom of boiler high temperature, slag slag-drip opening 5 is connected, on the base plate of described housing 1, be also provided with slag notch 7; Described conveying device 2 comprises moldboard 3 and the moldboard axle 4 that some one connect, described moldboard axle 4 one end are movably connected on the base plate of described housing 1, the other end is fixedly connected with described moldboard 3 lower surfaces, described moldboard axle 4 drives described moldboard 3 reciprocally swingings, and described housing 1 is outside equipped with the drive unit for driving described moldboard axle 4 reciprocally swingings; Some described moldboards 3 are arranged in parallel and are perpendicular with high temperature bottom slag throughput direction, the staggered 1/3 length place that is positioned at adjacent described moldboard 3 of adjacent described moldboard axle 4.
Described moldboard 3 comprise be positioned at described moldboard axle 4 right sides high-end 9 and be positioned at the low side 8 in described moldboard axle 4 left sides, described high-end 9 height 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 and moldboard axle 4 numbers equate.
Between described moldboard 3 and described housing 1 base plate, be provided with space 10.
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 the high temperature bottom slag throughput direction that described slag notch 7 is arranged at described housing 1 base plate foremost.
Described drive unit is oil cylinder.
The moldboard motion state of the present embodiment is unified motion.
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 above the base plate of housing 1, on housing 1 base plate, arrange some by certain 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 moldboard is taking moldboard axle 4 as separation, be divided into swing part and backward swing part forward, because all moldboards are all synchronous front and back reciprocally swingings, swing part promotes corresponding high temperature bottom slag and moves forward because material has internal friction forward, swing part is because the cross section of moldboard 3 is pre-large post-small backward, be easy to can not drive through high temperature bottom slag material to move backward, by constantly synchronous front and back reciprocally swinging of moldboard 3, the material of realizing in housing 1 is fed forward.
Same, between moldboard 3 and the base plate of housing 2, there is certain gap, the end slag that has all the time one deck not move on housing 2 base plates, separates the mobile bed of material and base plate, can greatly reduce the wearing and tearing of housing 2 base plates.
Same, housing 2 is the tight structures of totally-enclosed sealing that are 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 1: at the bottom of boiler high temperature, slag directly falls into the tight high temperature bottom slag conveying device of sealing, imperfect combustion carbon in slag, fully burning in high temperature bottom slag conveying device, the chemical energy of carbon is reclaimed by boiler;
Step 2: the high temperature bottom slag after the chemical energy of carbon reclaims, enter end slag cooler 12 by high temperature bottom slag conveying device, condensate pump 13 is supplied with slag cooler 12 cooling waters of the described end, and high temperature bottom slag is cooling, and its physics 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 (850 DEG C of left and right) that at the bottom of boiler high temperature, slag slag-drip opening 5 is discharged directly falls into the tight conveying device 2 of sealing, imperfect combustion carbon in slag, fully burning 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 of carbon reclaims, enter end slag cooler 12 by conveying device 2, condensate pump 13 is supplied with end slag cooler 12 cooling waters, high temperature bottom slag is cooling, condensate water after intensification enters the flow process after low-pressure heater 15, and the physics 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 (7)

1. a boiler high temperature bottom ash conveying device, it is characterized in that: comprising: housing (1), be positioned at the conveying device (2) on described housing (1) base plate, on the top board of described housing (1), be provided with the opening (6) being connected with slag slag-drip opening (5) at the bottom of boiler high temperature, on the base plate of described housing (1), be also provided with slag notch (7); Described conveying device (2) comprises moldboard (3) and the moldboard axle (4) that some one connect, 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 are perpendicular with high temperature bottom slag throughput direction, staggered two ends or staggered 1/4 ~ 1/3 length place that is positioned at adjacent described moldboard (3) that is positioned at adjacent described moldboard (3) of adjacent described moldboard axle (4).
2. a kind of boiler high temperature bottom ash conveying device according to claim 1, it is characterized in that: described moldboard (3) comprises the low side (8) that is positioned at high-end (9) on described moldboard axle (4) right side and is 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) and moldboard axle (4) number equate.
4. a kind of boiler high temperature bottom ash conveying device according to claim 1, is characterized in that: between described moldboard (3) and described housing (1) base plate, be provided with space (10).
5. a kind of boiler high temperature bottom ash conveying device according to claim 1, it is characterized in that: described housing (1) and airtight connection of slag slag-drip opening (5) at the bottom of described boiler high temperature, 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 the high temperature bottom slag throughput direction that described slag notch (7) is arranged at 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.
7. a slag energy reclaiming method at the bottom of boiler high temperature, is characterized in that: comprise the following steps:
Step 1: at the bottom of boiler high temperature, slag directly falls into the tight high temperature bottom slag conveying device of sealing, imperfect combustion carbon in slag, fully burning in high temperature bottom slag conveying device, the chemical energy of carbon is reclaimed by boiler;
Step 2: the high temperature bottom slag after the chemical energy of carbon reclaims, enter end slag cooler (12) by high temperature bottom slag conveying device, condensate pump (13) is supplied with slag cooler of the described end (12) cooling water, and high temperature bottom slag is cooling, and its physics sensible heat is reclaimed by condensed water in boiler system (14).
CN201410111408.6A 2014-03-24 2014-03-24 A kind of boiler high temperature bottom ash conveying device Active CN103868085B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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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