CN103822206A - Slag discharging device capable of preventing slag discharging amount from being not controlled by slag cooler - Google Patents
Slag discharging device capable of preventing slag discharging amount from being not controlled by slag cooler Download PDFInfo
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- CN103822206A CN103822206A CN201410076026.4A CN201410076026A CN103822206A CN 103822206 A CN103822206 A CN 103822206A CN 201410076026 A CN201410076026 A CN 201410076026A CN 103822206 A CN103822206 A CN 103822206A
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- slag
- cold
- pipe
- surge bunker
- machine
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- 239000002893 slag Substances 0.000 title claims abstract description 685
- 238000007599 discharging Methods 0.000 title claims abstract description 26
- 239000010802 sludge Substances 0.000 claims description 59
- 239000002826 coolant Substances 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 6
- 239000002956 ash Substances 0.000 abstract description 67
- 239000010884 boiler slag Substances 0.000 abstract description 18
- 230000003139 buffering effect Effects 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 description 14
- 238000001816 cooling Methods 0.000 description 12
- 208000033999 Device damage Diseases 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention relates to a slag discharging device capable of preventing the slag discharging amount from being not controlled by a slag cooler. The slag discharging device comprises a slag discharging pipe upper section of which the upper end is connected with a boiler slag discharging opening, wherein the lower end of the slag discharging pipe upper section is communicated with a buffering bin; the bottom of the buffering bin is further communicated with a slag discharging pipe lower section; the opening, communicated with the slag discharging pipe lower section, of the bottom of the buffering bin is positioned within the range of ash bottom when the top of the ash discharged from the slag discharging pipe upper section blocks the lower discharging opening of the slag discharging pipe upper section; the other end of the slag discharging pipe lower section is connected with the slag cooler; the buffering bin is further communicated with the slag cooler through a pressure-equalizing pipe used for reducing the pressure inside the buffering bin. The slag discharging device solves the problem that the slag discharging amount of a boiler cannot be controlled, and has extremely high popularization value.
Description
Technical field
The present invention relates to a kind of boiler roughing slag device, specifically relate to a kind of do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents.
Background technology
Under recirculating fluidized bed, slag pipe, between boiler and cold slag machine, is the passage for the warm sludge of boiler being imported to cold slag machine.Under normal condition, the lower quantity of slag of CFBB should be controlled by cold slag machine rotating speed, stable thereby controlled circulation Bed in Fluidized Bed Boiler is pressed.Slag in boiler furnace enters cold slag machine through lower slag pipe, forms slag muck at the mouth of pipe of lower slag pipe, and in the time that slag muck is blocked the mouth of pipe of lower slag pipe, the slag in burner hearth no longer enters cold slag machine.The slag muck that rotates the slag pipe mouth of pipe at present when cold slag machine is destroyed, and slag just can enter cold slag machine by burner hearth, and it is large that the high slag muck of cold slag machine rotating speed destroys the fast lower quantity of slag, and it is little that the low slag muck of cold slag machine rotating speed destroys the slow lower quantity of slag, and in the time that cold slag machine stops operating, burner hearth does not descend slag.
But the pressure that need to seal due to the slag muck of the lower slag mouth of pipe is larger, this pressure is the pressure sum that boiler bed presses the difference in height that adds burner hearth slag-drip opening and cold slag machine slag inlet to produce, excessive pressure occurs that the slag muck of the lower slag pipe mouth of pipe cannot realize the situation of effective sealing sometimes, in the time that the mobility lower quantity of slag relatively good and boiler of slag is discontinuous, there will be the lower quantity of slag not to be subject to the situation of slag cooler rotating speed control, at this moment enter uncontrollably cold slag machine and upstream device without the good cooling warm sludge of cold slag machine in a large number, cause device damage, even causing boiler slag removal amount to cross ambassador's bed presses too low and affects the normal operation of CFBB.
Meanwhile, the warm sludge temperature in lower slag pipe is many 900 ℃ of left and right, and common lower slag pipe exists and burns red problem, brings hidden danger to equipment safety operation.
Granted publication number has been recorded one for the Chinese patent literature of CN201339944Y and has been prevented scum pipe spray slag device, comprise boiler slag discharging tube, cold slag machine water bag water inlet and refractory material, be connected water bag pressure lid at boiler slag discharging tube with cold slag machine water bag import junction, and seal with refractory material.This scheme has solved the problem of the outer spray of boiler high temperature lime-ash, but cannot solve the do not catch a cold problem of slag machine control of the lower quantity of slag.
Summary of the invention
Object of the present invention is exactly in order to solve the above problems and not enough, and a kind of do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents is provided.
The present invention adopts following technical scheme:
Prevent the do not catch a cold lower slag device of slag machine control of the lower quantity of slag, comprise the lower slag Guan Shangjie that upper end is connected with boiler roughing slag mouth; The lower end of lower slag Guan Shangjie is communicated to surge bunker; Surge bunker bottom is also communicated with under lower slag pipe to be saved, and the opening that described surge bunker bottom is communicated with joint under lower slag pipe is in the time that the lime-ash top of discharging from lower slag Guan Shangjie blocks the lower outlet of lower slag Guan Shangjie within lime-ash bottom range, and the other end saving under lower slag pipe is connected with cold slag machine; Surge bunker is also by being communicated with cold slag machine for reducing the pressure-equalizing pipe of surge bunker internal pressure.
Under described lower slag pipe, joint is staggered in arrangement with lower slag Guan Shangjie, can delay lime-ash falling speed, strengthen lime-ash and air contact area, the hot blast comprising in the lime-ash causing to fall and break separates with warm sludge in surge bunker, hot blast is delivered to cold slag machine through pressure-equalizing pipe, has realized pressure balance between surge bunker and cold slag machine.
Described lower slag Guan Shangjie is connected with surge bunker by three-dimensional expansion joint.
Under described lower slag pipe, save and be connected with surge bunker by three-dimensional expansion joint.
Described lower slag Guan Shangjie is all connected with surge bunker by three-dimensional expansion joint with saving under lower slag pipe.
On described pressure-equalizing pipe, be provided with valve.
Described pressure-equalizing pipe is directly communicated in cold slag machine.
The negative tube that described pressure-equalizing pipe is connected with cold slag machine is communicated with.
On the sidewall of described surge bunker, be also provided with the inspection opening for clearing up large slag.
Under described lower slag Guan Shangjie, surge bunker and/or lower slag pipe, on the outer wall of joint for double-decker or membrane wall structure or aforementioned three parts, be wound with pipeline, in double-decker or membrane wall structure or pipeline, be connected with cooling medium.
Described cooling medium is water or air or other conventional liquid cooling mediums.
In the present invention, because boiler hearth of circulating fluidized bed inside is the mixture of wind and slag, in a kind of fluidized state, when boiler slag removal, have part wind and warm sludge and enter lower slag pipe simultaneously, when the warm sludge that is mixed with part wind is entered after surge bunker through lower slag Guan Shangjie by boiler hearth of circulating fluidized bed, can realize the mobility that separates and effectively reduce warm sludge of warm sludge and wind.
The isolated wind of surge bunker enters cold slag machine inside by pressure-equalizing pipe, surge bunker has been realized pressure balance between surge bunker and cold slag machine by pressure-equalizing pipe, make the pressure that cold slag machine need to seal press the pressure sum of the difference in height generation that adds burner hearth slag-drip opening and cold slag machine slag inlet to be reduced to the pressure of the difference in height generation of surge bunker and cold slag machine slag inlet by original boiler bed, cold slag machine sealability is improved.The slag muck that can effectively overcome the lower slag pipe mouth of pipe cannot be realized the situation of effective sealing, and avoid entering uncontrollably cold slag machine and upstream device without the good cooling warm sludge of cold slag machine in a large number, cause device damage, even cause boiler slag removal amount to cross ambassador's bed and press too low and affect the generation of the normal operation of CFBB.
Warm sludge is first after surge bunker is piled up buffering, hot blast separation, then under lower slag pipe, joint enters cold slag machine, has avoided warm sludge directly to enter cold slag machine through lower slag pipe, and then the lower uncontrolled phenomenon of the quantity of slag of generation.
Lime-ash is at the inner slag muck that forms of the bottom of lower slag Guan Shangjie surge bunker, when the edge of slag muck flows to while saving under lower slag pipe, slag muck on lower slag pipe under pipe joint mouth is destroyed, lime-ash from surge bunker by under slag pipe joint to enter cold slag machine inner and form slag muck, in the time that slag muck is blocked under lower slag pipe pipe joint mouth and is produced enough resistances, lime-ash no longer enters cold slag machine, lime-ash in burner hearth continues to enter lower slag Guan Shangjie, instantly when on slag pipe, pipe joint mouth is plugged, lime-ash no longer enters lower slag Guan Shangjie, and the slag in burner hearth no longer enters lower slag device.
In the time that cold slag machine rotates, slag muck on slag muck under lower slag pipe under pipe joint mouth, lower slag pipe under pipe joint mouth is destroyed successively, slag in burner hearth through saving successively the cold slag machine that enters under lower slag Guan Shangjie, surge bunker, lower slag pipe, the low slag muck breakdown speed of cold slag machine rotating speed is slow, the slag input amount of cold slag machine is just few, and the speed that the high slag muck of cold slag machine rotating speed destroys is fast, and cold slag machine slag input amount is just many, in the time that cold slag machine does not turn, slag muck does not destroy, just not slag input in cold slag machine.
To under lower slag Guan Shangjie, surge bunker and/or lower slag pipe, on the outer wall of joint for double-decker or membrane wall structure or aforementioned three parts, be wound with pipeline, in double-decker or membrane wall structure or pipeline, be connected with cooling medium, can effectively reduce the temperature of above-mentioned parts, prevent that lower slag pipe from burning red problem, increase the service life, avoid unexpected dangerous generation.
Accompanying drawing explanation
Fig. 1 is embodiment 1 structural representation;
Fig. 2 is embodiment 2 structural representations;
Fig. 3 is embodiment 3 structural representations;
Fig. 4 is embodiment 4 structural representations;
Fig. 5 is embodiment 5 structural representations;
Fig. 6 is embodiment 6 structural representations;
Wherein, 1, boiler roughing slag mouth, 2, lower slag Guan Shangjie, 3, three-dimensional expansion joint, 4, inspection opening, 5, warm sludge, 6, save under lower slag pipe, 7, pipeline, 8, cold slag machine, 9, negative tube, 10, pressure-equalizing pipe, 11, valve, 12, surge bunker.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
Embodiment 1:
As shown in Figure 1, a kind of do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents, comprises the lower slag Guan Shangjie 2 that upper end is connected with boiler roughing slag mouth 1; The lower end of lower slag Guan Shangjie 2 is communicated to surge bunker 12; Surge bunker 12 bottoms are also communicated with under lower slag pipe and save 6, and described surge bunker 12 bottoms with under lower slag pipe, save 6 openings that are communicated with in the time that the lime-ash top of discharging from lower slag Guan Shangjie 2 blocks the lower outlet of lower slag Guan Shangjie 2 within lime-ash bottom range, under lower slag pipe, save 6 the other end and be connected with cold slag machine 8; Surge bunker 12 is also communicated with cold slag machine 8 by the pressure-equalizing pipe 10 for reducing surge bunker 12 internal pressures.
Lower slag Guan Shangjie 2 is connected with surge bunker 12 by three-dimensional expansion joint 3.Pressure-equalizing pipe 10 is directly communicated in cold slag machine 8.
Because boiler hearth of circulating fluidized bed inside is the mixture of wind and slag, in a kind of fluidized state, when boiler slag removal, have part wind and warm sludge 5 and enter lower slag pipe simultaneously, when the warm sludge 5 that is mixed with part wind is entered after surge bunker 12 through lower slag Guan Shangjie 2 by boiler hearth of circulating fluidized bed, can realize the mobility that separates and effectively reduce warm sludge 5 of warm sludge 5 and wind.
The isolated wind of surge bunker 12 carries out cold slag machine 8 inside by pressure-equalizing pipe 10, surge bunker 12 has been realized pressure balance between surge bunker 12 and cold slag machine 8 by pressure-equalizing pipe 10, the pressure sum that makes cold slag machine 8 need the pressure of sealing to press the difference in height that adds burner hearth slag-drip opening and cold slag machine 8 slag inlets to produce by original boiler bed is reduced to surge bunker 12 and the pressure that the difference in height of cold slag machine 8 slag inlets produces, and cold slag machine 8 sealabilities are improved.The slag muck that can effectively overcome the lower slag pipe mouth of pipe cannot be realized the situation of effective sealing, and avoid entering uncontrollably cold slag machine 8 and upstream device without the good cooling warm sludge 5 of cold slag machine 8 in a large number, cause device damage, even cause boiler slag removal amount to cross ambassador's bed and press too low and affect the generation of the normal operation of CFBB.
The inner slag muck that forms of the surge bunker 12 of lime-ash in the bottom of lower slag Guan Shangjie 2, when the edge of slag muck flows to while saving 6 under lower slag pipe, slag muck under lower slag Guan Shangjie 2 mouths of pipe is destroyed, lime-ash from surge bunker 12 by save 6 under slag pipe to enter cold slag machine 8 inner and form slag muck, when slag muck is blocked when saving 6 mouths of pipe under lower slag pipe and producing enough resistances, lime-ash no longer enters cold slag machine 8, lime-ash in burner hearth continues to enter lower slag Guan Shangjie 2, instantly when slag Guan Shangjie 2 mouths of pipe are plugged, lime-ash no longer enters lower slag Guan Shangjie 2, and the slag in burner hearth no longer enters lower slag device.
In the time that cold slag machine 8 rotates, under lower slag pipe, save slag muck under slag muck, lower slag Guan Shangjie 2 mouths of pipe under 6 mouths of pipe destroyed successively, slag in burner hearth enters cold slag machine 8 through saving 6 successively under lower slag Guan Shangjie 2, surge bunker 12, lower slag pipe, the low slag muck breakdown speed of cold slag machine 8 rotating speed is low, the slag input amount of cold slag machine 8 is just few, and the speed that the high slag muck of cold slag machine 8 rotating speed destroys is fast, and cold slag machine 8 slag input amounts are just many, in the time that cold slag machine 8 does not turn, slag muck does not destroy, just not slag input in cold slag machine 8.
Embodiment 2:
As shown in Figure 2, a kind of do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents, comprises the lower slag Guan Shangjie 2 that upper end is connected with boiler roughing slag mouth 1; The lower end of lower slag Guan Shangjie 2 is communicated to surge bunker 12; Surge bunker 12 bottoms are also communicated with under lower slag pipe and save 6, and described surge bunker 12 bottoms with under lower slag pipe, save 6 openings that are communicated with in the time that the lime-ash top of discharging from lower slag Guan Shangjie 2 blocks the lower outlet of lower slag Guan Shangjie 2 within lime-ash bottom range, under lower slag pipe, save 6 the other end and be connected with cold slag machine 8; Surge bunker 12 is also communicated with cold slag machine 8 by the pressure-equalizing pipe 10 for reducing surge bunker 12 internal pressures.
Lower slag Guan Shangjie 2 is connected with surge bunker 12 by three-dimensional expansion joint 3.On pressure-equalizing pipe 10, be provided with valve 11.Pressure-equalizing pipe 10 is directly communicated in cold slag machine 8.On the sidewall of surge bunker 12, be also provided with the inspection opening 4 for clearing up large slag.
Under lower slag Guan Shangjie 2, surge bunker 12 and/or lower slag pipe, save on 6 outer walls that are double-decker or membrane wall structure or aforementioned three parts and be wound with pipeline 7, in double-decker or membrane wall structure or pipeline 7, be connected with cooling medium.Cooling medium is water or air or other conventional liquid cooling mediums.Cooling medium can effectively reduce the temperature of above-mentioned parts, prevents that lower slag pipe from burning the problems such as red, increases the service life, and avoids unexpected dangerous generation.
In the present invention, because boiler hearth of circulating fluidized bed inside is the mixture of wind and slag, in a kind of fluidized state, when boiler slag removal, have part wind and warm sludge 5 and enter lower slag pipe simultaneously, when the warm sludge 5 that is mixed with part wind is entered after surge bunker 12 through lower slag Guan Shangjie 2 by boiler hearth of circulating fluidized bed, can realize the mobility that separates and effectively reduce warm sludge 5 of warm sludge 5 and wind.
The isolated wind of surge bunker 12 carries out cold slag machine 8 inside by pressure-equalizing pipe 10, surge bunker 12 has been realized pressure balance between surge bunker 12 and cold slag machine 8 by pressure-equalizing pipe 10, the pressure sum that makes cold slag machine 8 need the pressure of sealing to press the difference in height that adds burner hearth slag-drip opening and cold slag machine 8 slag inlets to produce by original boiler bed is reduced to surge bunker 12 and the pressure that the difference in height of cold slag machine 8 slag inlets produces, and cold slag machine 8 sealabilities are improved.The slag muck that can effectively overcome the lower slag pipe mouth of pipe cannot be realized the situation of effective sealing, and avoid entering uncontrollably cold slag machine 8 and upstream device without the good cooling warm sludge 5 of cold slag machine 8 in a large number, cause device damage, even cause boiler slag removal amount to cross ambassador's bed and press too low and affect the generation of the normal operation of CFBB.
Lime-ash is at the inner slag muck that forms of the bottom of lower slag Guan Shangjie 2 surge bunker 12, when the edge of slag muck flows to while saving 6 under lower slag pipe, slag muck under lower slag Guan Shangjie 2 mouths of pipe is destroyed, lime-ash from surge bunker 12 by save 6 under slag pipe to enter cold slag machine 8 inner and form slag muck, when slag muck is blocked when saving 6 mouths of pipe under lower slag pipe and producing enough resistances, lime-ash no longer enters cold slag machine 8, lime-ash in burner hearth continues to enter lower slag Guan Shangjie 2, instantly when slag Guan Shangjie 2 mouths of pipe are plugged, lime-ash no longer enters lower slag Guan Shangjie 2, and the slag in burner hearth no longer enters lower slag device.
In the time that cold slag machine 8 rotates, under lower slag pipe, save slag muck under slag muck, lower slag Guan Shangjie 2 mouths of pipe under 6 mouths of pipe destroyed successively, slag in burner hearth enters cold slag machine 8 through saving 6 successively under lower slag Guan Shangjie 2, surge bunker 12, lower slag pipe, the low slag muck breakdown speed of cold slag machine 8 rotating speed is low, the slag input amount of cold slag machine 8 is just few, and the speed that the high slag muck of cold slag machine 8 rotating speed destroys is fast, and cold slag machine 8 slag input amounts are just many, in the time that cold slag machine 8 does not turn, slag muck does not destroy, just not slag input in cold slag machine 8.
Embodiment 3:
As shown in Figure 3, a kind of do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents, comprises the lower slag Guan Shangjie 2 that upper end is connected with boiler roughing slag mouth 1; The lower end of lower slag Guan Shangjie 2 is communicated to surge bunker 12; Surge bunker 12 bottoms are also communicated with under lower slag pipe and save 6, and described surge bunker 12 bottoms with under lower slag pipe, save 6 openings that are communicated with in the time that the lime-ash top of discharging from lower slag Guan Shangjie 2 blocks the lower outlet of lower slag Guan Shangjie 2 within lime-ash bottom range, under lower slag pipe, save 6 the other end and be connected with cold slag machine 8; Surge bunker 12 is also communicated with cold slag machine 8 by the pressure-equalizing pipe 10 for reducing surge bunker 12 internal pressures.
Under lower slag pipe, saving 6 is staggered in arrangement with lower slag Guan Shangjie 2, can delay lime-ash falling speed, strengthen lime-ash and air contact area, the hot blast comprising in the lime-ash causing to fall and break will separate with warm sludge 5 in surge bunker 12, hot blast is delivered to cold slag machine 8 through pressure-equalizing pipe 10, has realized pressure balance between surge bunker 12 and cold slag machine 8.
Under lower slag pipe, saving 6 is connected with surge bunker 12 by three-dimensional expansion joint 3.Pressure-equalizing pipe 10 is directly communicated in cold slag machine 8.
In the present invention, because boiler hearth of circulating fluidized bed inside is the mixture of wind and slag, in a kind of fluidized state, when boiler slag removal, have part wind and warm sludge 5 and enter lower slag pipe simultaneously, when the warm sludge 5 that is mixed with part wind is entered after surge bunker 12 through lower slag Guan Shangjie 2 by boiler hearth of circulating fluidized bed, can realize the mobility that separates and effectively reduce warm sludge 5 of warm sludge 5 and wind.
The isolated wind of surge bunker 12 carries out cold slag machine 8 inside by pressure-equalizing pipe 10, surge bunker 12 has been realized pressure balance between surge bunker 12 and cold slag machine 8 by pressure-equalizing pipe 10, the pressure sum that makes cold slag machine 8 need the pressure of sealing to press the difference in height that adds burner hearth slag-drip opening and cold slag machine 8 slag inlets to produce by original boiler bed is reduced to surge bunker 12 and the pressure that the difference in height of cold slag machine 8 slag inlets produces, and cold slag machine 8 sealabilities are improved.The slag muck that can effectively overcome the lower slag pipe mouth of pipe cannot be realized the situation of effective sealing, and avoid entering uncontrollably cold slag machine 8 and upstream device without the good cooling warm sludge 5 of cold slag machine 8 in a large number, cause device damage, even cause boiler slag removal amount to cross ambassador's bed and press too low and affect the generation of the normal operation of CFBB.
Lime-ash is at the inner slag muck that forms of the bottom of lower slag Guan Shangjie surge bunker 12, when the edge of slag muck flows to while saving 6 under lower slag pipe, slag muck under lower slag Guan Shangjie 2 mouths of pipe is destroyed, lime-ash from surge bunker 12 by save 6 under slag pipe to enter cold slag machine 8 inner and form slag muck, when slag muck is blocked when saving 6 mouths of pipe under lower slag pipe and producing enough resistances, lime-ash no longer enters cold slag machine 8, lime-ash in burner hearth continues to enter lower slag Guan Shangjie 2, instantly when slag Guan Shangjie 2 mouths of pipe are plugged, lime-ash no longer enters lower slag Guan Shangjie 2, and the slag in burner hearth no longer enters lower slag device.
In the time that cold slag machine 8 rotates, under lower slag pipe, save slag muck under slag muck, lower slag Guan Shangjie 2 mouths of pipe under 6 mouths of pipe destroyed successively, slag in burner hearth enters cold slag machine 8 through saving 6 successively under lower slag Guan Shangjie 2, surge bunker 12, lower slag pipe, the low slag muck breakdown speed of cold slag machine 8 rotating speed is low, the slag input amount of cold slag machine 8 is just few, and the speed that the high slag muck of cold slag machine 8 rotating speed destroys is fast, and cold slag machine 8 slag input amounts are just many, in the time that cold slag machine 8 does not turn, slag muck does not destroy, just not slag input in cold slag machine 8.
Embodiment 4:
As shown in Figure 4, a kind of do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents, comprises the lower slag Guan Shangjie 2 that upper end is connected with boiler roughing slag mouth 1; The lower end of lower slag Guan Shangjie 2 is communicated to surge bunker 12; Surge bunker 12 bottoms are also communicated with under lower slag pipe and save 6, and described surge bunker 12 bottoms with under lower slag pipe, save 6 openings that are communicated with in the time that the lime-ash top of discharging from lower slag Guan Shangjie 2 blocks the lower outlet of lower slag Guan Shangjie 2 within lime-ash bottom range, under lower slag pipe, save 6 the other end and be connected with cold slag machine 8; Surge bunker 12 is also communicated with cold slag machine 8 by the pressure-equalizing pipe 10 for reducing surge bunker 12 internal pressures.
Under lower slag pipe, saving 6 is staggered in arrangement with lower slag Guan Shangjie 2, can delay lime-ash falling speed, strengthen lime-ash and air contact area, the hot blast comprising in the lime-ash causing to fall and break will separate with warm sludge 5 in surge bunker 12, hot blast is delivered to cold slag machine 8 through pressure-equalizing pipe 10, has realized pressure balance between surge bunker 12 and cold slag machine 8.
Lower slag Guan Shangjie 2 with under lower slag pipe, save 6 and be all connected with surge bunker 12 by three-dimensional expansion joint 3.On pressure-equalizing pipe 10, be provided with valve 11.Pressure-equalizing pipe 10 is communicated with the negative tube 9 that cold slag machine 8 is connected.On the sidewall of surge bunker 12, be also provided with the inspection opening 4 for clearing up large slag.
Under lower slag Guan Shangjie 2, surge bunker 12 and/or lower slag pipe, save on 6 outer walls that are double-decker or membrane wall structure or aforementioned three parts and be wound with pipeline 7, in double-decker or membrane wall structure or pipeline 7, be connected with cooling medium.Cooling medium is water or air or other conventional liquid cooling mediums.Cooling medium can effectively reduce the temperature of above-mentioned parts, prevents that lower slag pipe from burning the problems such as red, increases the service life, and avoids unexpected dangerous generation.
In the present invention, because boiler hearth of circulating fluidized bed inside is the mixture of wind and slag, in a kind of fluidized state, when boiler slag removal, have part wind and warm sludge 5 and enter lower slag pipe simultaneously, when the warm sludge 5 that is mixed with part wind is entered after surge bunker 12 through lower slag Guan Shangjie 2 by boiler hearth of circulating fluidized bed, can realize the mobility that separates and effectively reduce warm sludge 5 of warm sludge 5 and wind.
The isolated wind of surge bunker 12 carries out cold slag machine 8 inside by pressure-equalizing pipe 10, surge bunker 12 has been realized pressure balance between surge bunker 12 and cold slag machine 8 by pressure-equalizing pipe 10, the pressure sum that makes cold slag machine 8 need the pressure of sealing to press the difference in height that adds burner hearth slag-drip opening and cold slag machine 8 slag inlets to produce by original boiler bed is reduced to surge bunker 12 and cold slag machine 8 and the pressure that the difference in height of slag inlet produces, and cold slag machine 8 sealabilities are improved.The slag muck that can effectively overcome the lower slag pipe mouth of pipe cannot be realized the situation of effective sealing, and avoid entering uncontrollably cold slag machine 8 and upstream device without the good cooling warm sludge 5 of cold slag machine 8 in a large number, cause device damage, even cause boiler slag removal amount to cross ambassador's bed and press too low and affect the generation of the normal operation of CFBB.
Lime-ash is at the inner slag muck that forms of the bottom of lower slag Guan Shangjie 2 surge bunker 12, when the edge of slag muck flows to while saving 6 under lower slag pipe, slag muck under lower slag Guan Shangjie 2 mouths of pipe is destroyed, lime-ash from surge bunker 12 by save 6 under slag pipe to enter cold slag machine 8 inner and form slag muck, when slag muck is blocked when saving 6 mouths of pipe under lower slag pipe and producing enough resistances, lime-ash no longer enters cold slag machine 8, lime-ash in burner hearth continues to enter lower slag Guan Shangjie 2, instantly when slag Guan Shangjie 2 mouths of pipe are plugged, lime-ash no longer enters lower slag Guan Shangjie 2, and the slag in burner hearth no longer enters lower slag device.
In the time that cold slag machine 8 rotates, under lower slag pipe, save slag muck under slag muck, lower slag Guan Shangjie 2 mouths of pipe under 6 mouths of pipe destroyed successively, slag in burner hearth enters cold slag machine 8 through saving 6 successively under lower slag Guan Shangjie 2, surge bunker 12, lower slag pipe, the low slag muck breakdown speed of cold slag machine 8 rotating speed is low, the slag input amount of cold slag machine 8 is just few, and the speed that the high slag muck of cold slag machine 8 rotating speed destroys is fast, and cold slag machine 8 slag input amounts are just many, in the time that cold slag machine 8 does not turn, slag muck does not destroy, just not slag input in cold slag machine 8.
Embodiment 5:
As shown in Figure 5, a kind of do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents, comprises the lower slag Guan Shangjie 2 that upper end is connected with boiler roughing slag mouth 1; The lower end of lower slag Guan Shangjie 2 is communicated to surge bunker 12; Surge bunker 12 bottoms are also communicated with under lower slag pipe and save 6, and described surge bunker 12 bottoms with under lower slag pipe, save 6 openings that are communicated with in the time that the lime-ash top of discharging from lower slag Guan Shangjie 2 blocks the lower outlet of lower slag Guan Shangjie 2 within lime-ash bottom range, under lower slag pipe, save 6 the other end and be connected with cold slag machine 8; Surge bunker 12 is also communicated with cold slag machine 8 by the pressure-equalizing pipe 10 for reducing surge bunker 12 internal pressures.
Under lower slag pipe, saving 6 is staggered in arrangement with lower slag Guan Shangjie 2, can delay lime-ash falling speed, strengthen lime-ash and air contact area, the hot blast comprising in the lime-ash causing to fall and break will separate with warm sludge 5 in surge bunker 12, hot blast is delivered to cold slag machine 8 through pressure-equalizing pipe 10, has realized pressure balance between surge bunker 12 and cold slag machine 8.
Lower slag Guan Shangjie 2 is connected with surge bunker 12 by three-dimensional expansion joint 3.Pressure-equalizing pipe 10 is communicated with the negative tube 9 that cold slag machine 8 is connected.
In the present invention, because boiler hearth of circulating fluidized bed inside is the mixture of wind and slag, in a kind of fluidized state, when boiler slag removal, have part wind and warm sludge 5 and enter lower slag pipe simultaneously, when the warm sludge 5 that is mixed with part wind is entered after surge bunker 12 through lower slag Guan Shangjie 2 by boiler hearth of circulating fluidized bed, can realize the mobility that separates and effectively reduce warm sludge 5 of warm sludge 5 and wind.
The isolated wind of surge bunker 12 carries out cold slag machine 8 inside by pressure-equalizing pipe 10, surge bunker 12 has been realized pressure balance between surge bunker 12 and cold slag machine 8 by pressure-equalizing pipe 10, the pressure sum that makes cold slag machine 8 need the pressure of sealing to press the difference in height that adds burner hearth slag-drip opening and cold slag machine 8 slag inlets to produce by original boiler bed is reduced to surge bunker 12 and the pressure that the difference in height of cold slag machine 8 slag inlets produces, and cold slag machine 8 sealabilities are improved.The slag muck that can effectively overcome the lower slag pipe mouth of pipe cannot be realized the situation of effective sealing, and avoid entering uncontrollably cold slag machine 8 and upstream device without the good cooling warm sludge 5 of cold slag machine 8 in a large number, cause device damage, even cause boiler slag removal amount to cross ambassador's bed and press too low and affect the generation of the normal operation of CFBB.
Lime-ash is at the inner slag muck that forms of the bottom of lower slag Guan Shangjie 2 surge bunker 12, when the edge of slag muck flows to while saving 6 under lower slag pipe, slag muck under lower slag Guan Shangjie 2 mouths of pipe is destroyed, lime-ash from surge bunker 12 by save 6 under slag pipe to enter cold slag machine 8 inner and form slag muck, when slag muck is blocked when saving 6 mouths of pipe under lower slag pipe and producing enough resistances, lime-ash no longer enters cold slag machine 8, lime-ash in burner hearth continues to enter lower slag Guan Shangjie 2, instantly when slag Guan Shangjie 2 mouths of pipe are plugged, lime-ash no longer enters lower slag Guan Shangjie 2, and the slag in burner hearth no longer enters lower slag device.
In the time that cold slag machine 8 rotates, under lower slag pipe, save slag muck under slag muck, lower slag Guan Shangjie 2 mouths of pipe under 6 mouths of pipe destroyed successively, slag in burner hearth enters cold slag machine 8 through saving 6 successively under lower slag Guan Shangjie 2, surge bunker 12, lower slag pipe, the low slag muck breakdown speed of cold slag machine 8 rotating speed is low, the slag input amount of cold slag machine 8 is just few, and the speed that the high slag muck of cold slag machine 8 rotating speed destroys is fast, and cold slag machine 8 slag input amounts are just many, in the time that cold slag machine 8 does not turn, slag muck does not destroy, just not slag input in cold slag machine 8.
Embodiment 6:
As shown in Figure 6, a kind of lower slag device that prevents the lower quantity of slag from not catching a cold slag machine 8 controls, comprises the lower slag Guan Shangjie 2 that upper end is connected with boiler roughing slag mouth 1; The lower end of lower slag Guan Shangjie 2 is communicated to surge bunker 12; Surge bunker 12 bottoms are also communicated with under lower slag pipe and save 6, and described surge bunker 12 bottoms with under lower slag pipe, save 6 openings that are communicated with in the time that the lime-ash top of discharging from lower slag Guan Shangjie 2 blocks the lower outlet of lower slag Guan Shangjie 2 within lime-ash bottom range, under lower slag pipe, save 6 the other end and be connected with cold slag machine 8; Surge bunker 12 is also communicated with cold slag machine 8 by the pressure-equalizing pipe 10 for reducing surge bunker 12 internal pressures.
Under lower slag pipe, saving 6 is staggered in arrangement with lower slag Guan Shangjie 2, can delay lime-ash falling speed, strengthen lime-ash and air contact area, the hot blast comprising in the lime-ash causing to fall and break will separate with warm sludge 5 in surge bunker 12, hot blast is delivered to cold slag machine 8 through pressure-equalizing pipe 10, has realized pressure balance between surge bunker 12 and cold slag machine 8.
Lower slag Guan Shangjie 2 is connected with surge bunker 12 by three-dimensional expansion joint 3.On pressure-equalizing pipe 10, be provided with valve 11.Pressure-equalizing pipe 10 is communicated with the negative tube 9 that cold slag machine 8 is connected.On the sidewall of surge bunker 12, be also provided with the inspection opening 4 for clearing up large slag.
Under lower slag Guan Shangjie 2, surge bunker 12 and/or lower slag pipe, save on 6 outer walls that are double-decker or membrane wall structure or aforementioned three parts and be wound with pipeline 7, in double-decker or membrane wall structure or pipeline 7, be connected with cooling medium.Cooling medium is water or air or other conventional liquid cooling mediums.Cooling medium can effectively reduce the temperature of above-mentioned parts, prevents that lower slag pipe from burning the problems such as red, increases the service life, and avoids unexpected dangerous generation.
In the present invention, because boiler hearth of circulating fluidized bed inside is the mixture of wind and slag, in a kind of fluidized state, when boiler slag removal, have part wind and warm sludge 5 and enter lower slag pipe simultaneously, when the warm sludge 5 that is mixed with part wind is entered after surge bunker 12 through lower slag Guan Shangjie 2 by boiler hearth of circulating fluidized bed, can realize the mobility that separates and effectively reduce warm sludge 5 of warm sludge 5 and wind.
The isolated wind of surge bunker 12 carries out cold slag machine 8 inside by pressure-equalizing pipe 10, surge bunker 12 has been realized pressure balance between surge bunker 12 and cold slag machine 8 by pressure-equalizing pipe 10, the pressure sum that makes cold slag machine 8 need the pressure of sealing to press the difference in height that adds burner hearth slag-drip opening and cold slag machine 8 slag inlets to produce by original boiler bed is reduced to surge bunker 12 and the pressure that the difference in height of cold slag machine 8 slag inlets produces, and cold slag machine 8 sealabilities are improved.The slag muck that can effectively overcome the lower slag pipe mouth of pipe cannot be realized the situation of effective sealing, and avoid entering uncontrollably cold slag machine 8 and upstream device without the good cooling warm sludge 5 of cold slag machine 8 in a large number, cause device damage, even cause boiler slag removal amount to cross ambassador's bed and press too low and affect the generation of the normal operation of CFBB.
Lime-ash is at the inner slag muck that forms of the bottom of lower slag Guan Shangjie 2 surge bunker 12, when the edge of slag muck flows to while saving 6 under lower slag pipe, slag muck under lower slag Guan Shangjie 2 mouths of pipe is destroyed, lime-ash from surge bunker 12 by save 6 under slag pipe to enter cold slag machine 8 inner and form slag muck, when slag muck is blocked when saving 6 mouths of pipe under lower slag pipe and producing enough resistances, lime-ash no longer enters cold slag machine 8, lime-ash in burner hearth continues to enter lower slag Guan Shangjie 2, instantly when slag Guan Shangjie 2 mouths of pipe are plugged, lime-ash no longer enters lower slag Guan Shangjie 2, and the slag in burner hearth no longer enters lower slag device.
In the time that cold slag machine 8 rotates, under lower slag pipe, save slag muck under slag muck, lower slag Guan Shangjie 2 mouths of pipe under 6 mouths of pipe destroyed successively, slag in burner hearth enters cold slag machine 8 through saving 6 successively under lower slag Guan Shangjie 2, surge bunker 12, lower slag pipe, the low slag muck breakdown speed of cold slag machine 8 rotating speed is low, the slag input amount of cold slag machine 8 is just few, and the speed that the high slag muck of cold slag machine 8 rotating speed destroys is fast, and cold slag machine 8 slag input amounts are just many, in the time that cold slag machine 8 does not turn, slag muck does not destroy, just not slag input in cold slag machine 8.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be appreciated that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. prevent the do not catch a cold lower slag device of slag machine control of the lower quantity of slag, it is characterized in that: comprise the lower slag Guan Shangjie that upper end is connected with boiler roughing slag mouth; The lower end of lower slag Guan Shangjie is communicated to surge bunker; Surge bunker bottom is also communicated with under lower slag pipe to be saved, and the opening that described surge bunker bottom is communicated with joint under lower slag pipe is in the time that the lime-ash top of discharging from lower slag Guan Shangjie blocks the lower outlet of lower slag Guan Shangjie within lime-ash bottom range, and the other end saving under lower slag pipe is connected with cold slag machine; Surge bunker is also by being communicated with cold slag machine for reducing the pressure-equalizing pipe of surge bunker internal pressure.
2. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, it is characterized in that: under described lower slag pipe, joint is staggered in arrangement with lower slag Guan Shangjie, can delay lime-ash falling speed, strengthen lime-ash and air contact area, the hot blast comprising in the lime-ash causing to fall and break separates with warm sludge in surge bunker, hot blast is delivered to cold slag machine through pressure-equalizing pipe, has realized pressure balance between surge bunker and cold slag machine.
3. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, is characterized in that: described lower slag Guan Shangjie is connected with surge bunker by three-dimensional expansion joint.
4. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, is characterized in that: under described lower slag pipe, save and be connected with surge bunker by three-dimensional expansion joint.
5. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, is characterized in that: described lower slag Guan Shangjie is all connected with surge bunker by three-dimensional expansion joint with saving under lower slag pipe.
6. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, is characterized in that: on described pressure-equalizing pipe, be provided with valve.
7. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, is characterized in that: described pressure-equalizing pipe is directly communicated in cold slag machine.
8. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, is characterized in that: the negative tube that described pressure-equalizing pipe is connected with cold slag machine is communicated with.
9. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, is characterized in that: on the sidewall of described surge bunker, be also provided with the inspection opening for clearing up large slag.
10. the do not catch a cold lower slag device of slag machine control of the lower quantity of slag that prevents according to claim 1, it is characterized in that: under described lower slag Guan Shangjie, surge bunker and/or lower slag pipe, on the outer wall of joint for double-decker or membrane wall structure or aforementioned three parts, be wound with pipeline, in double-decker or membrane wall structure or pipeline, be connected with cooling medium.
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| CN201410076026.4A CN103822206B (en) | 2014-03-04 | 2014-03-04 | Prevent the slag device that the lower quantity of slag is not controlled by lag cooler |
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| CN201410076026.4A CN103822206B (en) | 2014-03-04 | 2014-03-04 | Prevent the slag device that the lower quantity of slag is not controlled by lag cooler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107191924A (en) * | 2016-03-15 | 2017-09-22 | 哈尔滨宏万智科技开发有限公司 | A kind of boiler separates cooling device with lime-ash |
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| CN103822206B (en) | 2016-08-24 |
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Denomination of invention: Slag dropping device for preventing slag dropping amount not controlled by slag cooler Effective date of registration: 20211224 Granted publication date: 20160824 Pledgee: Liaocheng high tech Zone Luxi small loan Co.,Ltd. Pledgor: CRYSTAL WATER AND BLUE SKY ENVIRONMENTAL ENGINEERING Co.,Ltd. Registration number: Y2021980016160 |
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