CN108395072A - The method of the coal-powder boiler direct blending combustion sludge of environmental protection - Google Patents
The method of the coal-powder boiler direct blending combustion sludge of environmental protection Download PDFInfo
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- CN108395072A CN108395072A CN201810431066.4A CN201810431066A CN108395072A CN 108395072 A CN108395072 A CN 108395072A CN 201810431066 A CN201810431066 A CN 201810431066A CN 108395072 A CN108395072 A CN 108395072A
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- powder boiler
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- 239000010802 sludge Substances 0.000 title claims abstract description 187
- 239000000843 powder Substances 0.000 title claims abstract description 57
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000002156 mixing Methods 0.000 title claims abstract description 24
- 230000007613 environmental effect Effects 0.000 title claims abstract description 22
- 239000003245 coal Substances 0.000 claims abstract description 105
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 238000010248 power generation Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000010801 sewage sludge Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 7
- 239000002817 coal dust Substances 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 4
- 230000003750 conditioning effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000007580 dry-mixing Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
Abstract
The present invention provides a kind of method of the coal-powder boiler direct blending combustion sludge of environmental protection, sludge pumping mode is directly inputted coal pulverizer by this method, it mixes, dry with fire coal, coal-powder boiler is sent into after powder processed and is mixed and burns power generation, corresponding co-combustion system includes lnp cache storehouse, sludge delivery pump, closed conduit, coal pulverizer, coal-powder boiler and the control system being sequentially connected, the wherein described lnp cache storehouse caches sludge, and sludge is delivered directly to the coal pulverizer by the closed conduit by the sludge delivery pump；Sludge need not exclusively carry out drying and dehydrating before entering coal pulverizer；The coal pulverizer mixes sludge and the fire coal being delivered in it, is dried and powder processed, and the sludge is delivered to the coal-powder boiler with coal-fired granular mixture and carries out combustion power generation.Minimizing, innoxious, disposal of resources to sludge, simple and effective may be implemented in the present invention；And low energy consumption, emission compliance；Sludge pump house and pipe arrangement are flexible, compact in design, small investment.
Description
Technical field
The invention belongs to sludge treatment fields, and in particular to a kind of method of the coal-powder boiler direct blending combustion sludge of environmental protection.
Background technology
Sludge is the spin-off of municipal sewage treatment.The municipal sludge annual output in China has been more than 40,000,000 tons at present,
It expects the year two thousand twenty and is up to 60,000,000 to 90,000,000 tons, and municipal sludge annual output is in increase tendency year by year.Sludge is a kind of
The extremely complex heterogeneous body being made of organic debris, microorganism, inorganic particle, colloid etc..The key property of sludge is
Moisture content is high, high organic content, and easy corruption is smelly, and particle is thinner, and proportion is smaller, jelly liquid.If not right
It carries out in time that thoroughly " stabilisations, minimizing, innoxious " is disposed, and can cause seriously to pollute to environment.But at China's sludge
Reason rate is relatively low.National Treatment of Sludge rate is only up to 33% within 2016.In recent years, increasingly with the requirement of Environmental Protection in China policies and regulations
Strictly, " stabilisation, minimizing, innoxious, recycling " disposition of sludge is of increased attention, it has also become city ring
One of the important topic that border is administered.
The major way of traditional sludge treatment has：Burning, landfill, land use after dehydration and drying prepare building materials etc..It is dirty
Mud dehydration and drying will solve the process problem of waste water and foul smell, and cost of disposal is high.Sludge incineration needs to build dedicated incinerator,
Invest larger, and the heavy metal contained in sludge in combustion process will be discharged into flue gas, cause air secondary pollution.This
Outside, Sludge landfill needs that deeply dehydrating sludge to moisture content is first less than 60%, also to solve waste water handling problem；On the other hand,
Sanitary landfills not only land occupation resource, but also the various poisonous and harmful substances infiltration soil contained in sludge, easily impurely
Lower water and soil.
Invention content
The present invention provides a kind of method of the coal-powder boiler direct blending combustion sludge of environmental protection, to solve traditional mixing and burning sludge by pulverized coal furnace
The problem of disposal options will produce secondary pollution and need special equipment drying and dehydrating.
According to a first aspect of the embodiments of the present invention, a kind of method of the coal-powder boiler direct blending combustion sludge of environmental protection is provided, it should
Sludge pumping mode is directly inputted coal pulverizer by method, is mixed, is dried with fire coal, coal-powder boiler is sent into after powder processed and is mixed and burns power generation,
Corresponding co-combustion system includes lnp cache storehouse, sludge delivery pump, closed conduit, coal pulverizer, coal-powder boiler and the use being sequentially connected
The control system of component operational, the lnp cache storehouse cache sludge in the corresponding co-combustion system of control, and by described
Sludge is delivered directly to the coal pulverizer by sludge delivery pump by the closed conduit；The coal pulverizer is to sludge and conveying
Fire coal in it mixed, is dried and powder processed, and the sludge and coal-fired granular mixture are delivered to the coal
Powder stove burns.
In an optional implementation manner, when being cached to sludge, negative pressure ensures institute in the lnp cache storehouse
Stating sludge, foul smell is without leaking during caching, and the sludge not water clock；The lnp cache storehouse, sludge delivery pump, sealed tube
Road and coal pulverizer are all corresponding to be tightly connected, to ensure foul smell that the sludge generates during conveying without leaking, and the sludge
Not water clock.
In another optional realization method, the coal pulverizer is using the external hot wind introduced, to the sludge and combustion
Coal is dried, and the hot blast temperature is 340 DEG C -371 DEG C, and pulverizer outlet temperature is 73 DEG C -88 DEG C.
In another optional realization method, positive pressure is additionally provided between the lnp cache storehouse and sludge delivery pump
Batcher.
In another optional realization method, the ratio of burning mixed mud is less than 20%.
In another optional realization method, the moisture content of burning mixed mud is 65-85%, and the sludge uses pumping side
Formula need not carry out it special drying and dehydrating before inputting the coal pulverizer.
In another optional realization method, when moisture percentage in sewage sludge height, when being more than default moisture content, plunger pump is selected；
When moisture percentage in sewage sludge is low, is less than or equal to default moisture content, special solid pump is selected.
In another optional realization method, control system includes：Positive pressure batcher control unit, delivery pump control are single
Member, fuel control unit and air blowing control unit, the positive pressure batcher control unit are carried for controlling the positive pressure batcher
Supply the sludge quantity of the sludge delivery pump, the conveying pump control unit for control the sludge delivery pump be conveyed to it is described
The sludge quantity of coal pulverizer, the fuel control unit is for controlling the Coal-fired capacity for being conveyed to the coal pulverizer, the air blowing control
Unit is for controlling the hot blast rate for being conveyed to the coal pulverizer.
In another optional realization method, coal pulverizer fineness of pulverized coal is R90=35%-40%, coal-air ratio 1.95-
2.8。
In another optional realization method, sludge and the coal-fired coal dust being mixed by being distributed in coal-powder boiler on
The burner in portion sprays into hearth combustion.
The beneficial effects of the invention are as follows：
1, minimizing, innoxious, disposal of resources to sludge, simple and effective may be implemented in the present invention；And low energy consumption, row
Unconventional and unrestrained mark；Sludge pump house and pipe arrangement are flexible, compact in design, small investment, in the flue gas that the present invention discharges major pollutants and
Heavy metal concentration can fully meet existing national standards requirement；
2, present invention setting lnp cache storehouse caches sludge, and negative pressure can ensure sludge foul smell during caching
Without leaking and sludge not water clock, the environment-protecting clean during sewage sludge storage may be implemented；
It 3, can by the present invention in that lnp cache storehouse, sludge delivery pump, closed conduit and coal pulverizer all correspond to sealed connection
To ensure foul smell that the sludge generates during conveying without leaking, and the sludge not water clock, do not generate secondary pollution；
4, the present invention does not need to be arranged special sludge dewatering drying equipment, and the present invention outside coal pulverizer by using drawing
Sludge and fire coal is dried in the hot wind entered, can not only reduce sludge treatment cost, but also can reduce energy consumption；
5, the present invention is by selecting the structure type of sludge delivery pump according to the moisture content of sludge, it is ensured that dirty
Mud conveying is smoothed out；
6, for the present invention by the way that positive pressure batcher and control system is arranged, burning can be mixed with conditioning of mud by adjusting its operating parameter
Ratio, i.e. conditioning of mud mix burning amount.
Description of the drawings
Fig. 1 is one embodiment block diagram of the method for the coal-powder boiler direct blending combustion sludge of environmental protection of the invention；
Fig. 2 is another embodiment block diagram of the method for the coal-powder boiler direct blending combustion sludge of environmental protection of the invention.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution in the embodiment of the present invention, and make of the invention real
The above objects, features, and advantages for applying example can be more obvious and easy to understand, below in conjunction with the accompanying drawings to technical side in the embodiment of the present invention
Case is described in further detail.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " connection " should do broad sense reason
Solution, for example, it may be mechanical connection or electrical connection, can also be the connection inside two elements, can be directly connected, also may be used
Indirectly connected through an intermediary, for the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term.
It is shown in Figure 1, for one embodiment block diagram of the method for the coal-powder boiler direct blending combustion sludge of present invention environmental protection.
Sludge pumping mode is directly inputted coal pulverizer by the method for the coal-powder boiler direct blending combustion sludge of the environmental protection, is mixed with fire coal, is dry
It is sent into coal-powder boiler after powder dry, processed and mixes burning power generation, corresponding co-combustion system may include the lnp cache storehouse 110 being sequentially connected, sludge
Delivery pump 120, closed conduit 130, coal pulverizer 140, coal-powder boiler 150 and for controlling component operational in corresponding co-combustion system
Control system 180, wherein the lnp cache storehouse 110 caches sludge, and by the sludge delivery pump 120 described in
Sludge is directly conveyed to the coal pulverizer 140 by closed conduit 130；Sludge need not carry out specially it before entering coal pulverizer
The drying and dehydrating of door；The coal pulverizer 140 mixes the sludge and the fire coal being delivered in it, is dried and powder processed,
And the sludge is delivered to the coal-powder boiler 150 with coal-fired granular mixture and is burnt, for generating electricity；Fire coal passes through
Another individual channel enters coal pulverizer；The control system 180 controls the sludge delivery pump 120 and coal pulverizer 140
System is used for conditioning of mud mixed-fuel burning proportion.Wherein control system includes：Convey pump control unit, fuel control unit and air-supply control
Unit processed, the conveying pump control unit are described for controlling the sludge quantity that the sludge delivery pump is conveyed to the coal pulverizer
Fuel control unit is conveyed to institute for controlling the Coal-fired capacity for being conveyed to the coal pulverizer, the air blowing control unit for controlling
State the hot blast rate of coal pulverizer.
In the present embodiment, when being cached to sludge, negative pressure ensures the sludge slow in the lnp cache storehouse 110
Foul smell is without leaking during depositing, and the sludge not water clock.Traditional Treatment of Sludge mode is usually stored by building sludge canopy
Sludge, the foul smell that sludge generates during storage will be directly discharged in air, and hydrogen sulfide has the taste of rotten egg in foul smell
Road can pollute air.The present invention is arranged lnp cache storehouse and is cached to sludge, ensure sludge during caching foul smell without leaking
And sludge not water clock, the environment-protecting clean during sewage sludge storage may be implemented, do not generate secondary pollution.In order to ensure that sludge conveys
Environment-protecting clean in the process, the lnp cache storehouse 110, sludge delivery pump 120, closed conduit 130 and coal pulverizer 140 are all corresponding
It is tightly connected, to ensure foul smell that the sludge generates during conveying without leaking, and the sludge not water clock.
After sludge and fire coal are transported to coal pulverizer 140, the coal pulverizer 140 mixes sludge and fire coal, utilizes
The hot wind that outside introduces, hot blast temperature are 340 DEG C -371 DEG C, the sludge and fire coal are dried, pulverizer outlet temperature
About 73 DEG C -88 DEG C, coal pulverizer 140 carries out powder processed to sludge and coal-fired mixture after the completion of drying.Compared to traditional dirt
Mud processing mode, the present invention do not need to be arranged special sludge dewatering drying equipment, and the present invention is by using coal pulverizer from outer
Sludge and fire coal is dried in the hot wind that portion introduces, and can not only reduce sludge treatment cost, but also can reduce energy consumption.
It, can be according to moisture percentage in sewage sludge to delivery pump when using sludge delivery pump in order to ensure smooth delivery of power sludge
Structure type is selected, when moisture percentage in sewage sludge height, when being more than default moisture content, such as moisture content 80%, plunger can be selected
Pump can select special solid to pump when moisture percentage in sewage sludge is low, is less than or equal to default moisture content.In addition, coal pulverizer is dry
When dry completion, the outlet temperature of coal pulverizer is 73 DEG C -88 DEG C, and the moisture content of sludge and coal-fired mixture is 21%, if dry
Mixing water content of matter afterwards is bigger than normal, and it will cause the blockings for the coal injection system that coal dust is sprayed to coal-powder boiler.Coal pulverizer in powder processed,
Fineness of pulverized coal is R90=35%-40%, coal-air ratio 1.95-2.8, otherwise granularity cross conference coal injection system caused to block.Sludge
The coal dust being mixed with fire coal sprays into hearth combustion by being distributed in the burner of coal-powder boiler middle and upper part.
As seen from the above-described embodiment, minimizing, innoxious, disposal of resources to sludge may be implemented in the present invention, easy
Efficiently；And low energy consumption, emission compliance；Sludge pump house and pipe arrangement are flexible, compact in design, small investment, the cigarette that the present invention discharges
Major pollutants and heavy metal concentration can fully meet existing national standards requirement in gas.The present invention is suitable for incorporation into moisture content
For the sludge of 65-85%, the sludge need not carry out it special do before inputting the coal pulverizer using pumping mode
Dry dehydration, the content ratio for being conveyed to the sludge of the coal pulverizer are less than 20%.
Referring to Fig. 2, for another embodiment block diagram of the method for the coal-powder boiler direct blending combustion sludge of present invention environmental protection.The ring
Sludge pumping mode is directly inputted coal pulverizer by the method for the coal-powder boiler direct blending combustion sludge of guarantor, is mixed, dries, is made with fire coal
It is sent into coal-powder boiler after powder and mixes burning power generation, corresponding co-combustion system may include the lnp cache storehouse 110 being sequentially connected, positive pressure batcher
160, sludge delivery pump 120, closed conduit 130, coal pulverizer 140, coal-powder boiler 150 and for controlling group in corresponding co-combustion system
The control system 180 of part running, wherein the lnp cache storehouse 110 caches sludge, and will be dirty by positive pressure batcher 160
Mud is conveyed to sludge delivery pump 120, and sludge is conveyed to the mill by the sludge delivery pump 120 by the closed conduit 130
Coal machine 140；Sludge need not carry out it special drying and dehydrating before entering coal pulverizer；The coal pulverizer 140 is to described
Sludge and the fire coal being delivered in it mixed, is dried and powder processed, and by the sludge and coal-fired granular mixture
It is delivered to the coal-powder boiler 150 and carries out combustion power generation, fire coal enters coal pulverizer by another individual channel.The present invention is by setting
Positive pressure batcher is set, burning amount can be mixed with the mixed-fuel burning proportion of conditioning of mud, i.e. conditioning of mud by adjusting its operating parameter.The control system
180 pairs of positive pressure batchers 160 of system, sludge delivery pump 120 and coal pulverizer 140 control, and are used for conditioning of mud fuel mixing ratio
Example, wherein control system includes：Positive pressure batcher control unit, conveying pump control unit, fuel control unit and air blowing control
Unit, the positive pressure batcher control unit are used for for controlling the positive pressure batcher running, the conveying pump control unit
The sludge quantity that the sludge delivery pump is conveyed to the coal pulverizer is controlled, the fuel control unit is conveyed to described for control
The Coal-fired capacity of coal pulverizer, the air blowing control unit is for controlling the hot blast rate for being conveyed to the coal pulverizer.
In the present embodiment, when being cached to sludge, negative pressure ensures the sludge slow in the lnp cache storehouse 110
Foul smell is without leaking during depositing, and the sludge not water clock.Traditional Treatment of Sludge mode is usually stored by building sludge canopy
Sludge, the foul smell that sludge generates during storage will be directly discharged in air, and hydrogen sulfide has the taste of rotten egg in foul smell
Road can pollute air.The present invention is arranged lnp cache storehouse and is cached to sludge, ensure sludge during caching foul smell without leaking
And sludge not water clock, the environment-protecting clean during sewage sludge storage may be implemented, do not generate secondary pollution.In order to ensure that sludge conveys
Environment-protecting clean in the process, the lnp cache storehouse 110, positive pressure batcher 160, sludge delivery pump 120,130 and of closed conduit
Coal pulverizer 140 is all corresponding to be tightly connected, and to ensure foul smell that the sludge generates during conveying without leaking, and the sludge is not
Water clock.
After sludge and fire coal are transported to coal pulverizer 140, the coal pulverizer 140 mixes sludge and fire coal, utilizes
The hot wind that outside introduces, hot blast temperature are 340 DEG C -371 DEG C, the sludge and fire coal are dried, pulverizer outlet temperature
About 73 DEG C -88 DEG C, coal pulverizer 140 carries out powder processed to sludge and coal-fired mixture after the completion of drying.Compared to traditional dirt
Mud processing mode, the present invention do not need to be arranged special sludge dewatering drying equipment, and the present invention is by using coal pulverizer from outer
Sludge and fire coal is dried in the hot wind that portion introduces, and can not only reduce sludge treatment cost, but also can reduce energy consumption.
It, can be according to moisture percentage in sewage sludge to delivery pump when using sludge delivery pump in order to ensure smooth delivery of power sludge
Structure type is selected, when moisture percentage in sewage sludge height, when being more than default moisture content, such as moisture content 80%, plunger can be selected
Pump can select special solid to pump when moisture percentage in sewage sludge is low, is less than or equal to default moisture content.In addition, coal pulverizer is dry
When dry completion, the outlet temperature of coal pulverizer is 73 DEG C -88 DEG C, and the moisture content of sludge and coal-fired mixture is 21%, if dry
Mixing water content of matter afterwards is bigger than normal, and it will cause the blockings for the coal injection system that coal dust is sprayed to coal-powder boiler.Coal pulverizer in powder processed,
Fineness of pulverized coal is R90=35%-40%, coal-air ratio 1.95-2.8, otherwise granularity cross conference coal injection system caused to block.Sludge
The coal dust being mixed with fire coal sprays into hearth combustion by being distributed in the burner of coal-powder boiler middle and upper part.
As seen from the above-described embodiment, minimizing, innoxious, disposal of resources to sludge may be implemented in the present invention, easy
Efficiently；And low energy consumption, emission compliance；Sludge pump house and pipe arrangement are flexible, compact in design, small investment, the cigarette that the present invention discharges
Major pollutants and heavy metal concentration can fully meet existing national standards requirement in gas.The present invention is suitable for incorporation into moisture content
For the sludge of 65-85%, the sludge need not carry out it special do before inputting the coal pulverizer using pumping mode
Dry dehydration, the content ratio for being conveyed to the sludge of the coal pulverizer are less than 20%.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the present invention
Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the present invention and includes undocumented common knowledge in the art of the invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the invention is not limited in the precision architectures for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (10)
1. a kind of method of the coal-powder boiler direct blending combustion sludge of environmental protection, which is characterized in that this method is directly by sludge pumping side
Formula inputs coal pulverizer, mix, dry with fire coal, coal-powder boiler is sent into after powder processed mixes burning power generation, and it includes phase successively to correspond to co-combustion system
Lnp cache storehouse even, sludge delivery pump, closed conduit, coal pulverizer, coal-powder boiler and for controlling group in corresponding co-combustion system
The control system of part running, the lnp cache storehouse caches sludge, and is passed through by the sludge delivery pump described closed
Sludge is delivered directly to the coal pulverizer by pipeline；The coal pulverizer mixes sludge and the fire coal being delivered in it,
Powder dry and processed, and the sludge is delivered to the coal-powder boiler with coal-fired granular mixture and is burnt.
2. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 1, which is characterized in that the negative pressure is slow
For storage when being cached to sludge, negative pressure ensures the sludge, and foul smell is without leaking during caching, and the sludge does not drip
Leakage；The lnp cache storehouse, sludge delivery pump, closed conduit and coal pulverizer are all corresponding to be tightly connected, to ensure that the sludge exists
The foul smell generated during conveying is without leaking, and the sludge not water clock.
3. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 1, which is characterized in that the coal pulverizer
The hot wind introduced using outside, is dried the sludge and fire coal, and the hot blast temperature is 340 DEG C -371 DEG C, coal pulverizer
Outlet temperature is 73 DEG C -88 DEG C.
4. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 1, which is characterized in that in the negative pressure
Positive pressure batcher is additionally provided between buffering chamber and sludge delivery pump.
5. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 1, which is characterized in that burning mixed mud
Ratio is less than 20%.
6. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 1, which is characterized in that burning mixed mud
Moisture content is 65-85%, and the sludge need not carry out it special do before inputting the coal pulverizer using pumping mode
Dry dehydration.
7. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 1, which is characterized in that when sludge is aqueous
Rate is high, when being more than default moisture content, selects plunger pump；When moisture percentage in sewage sludge is low, is less than or equal to default moisture content, selection
Special solid pumps.
8. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 5, which is characterized in that control system packet
Include positive pressure batcher control unit, conveying pump control unit, fuel control unit and air blowing control unit, the positive pressure batcher
Control unit is for controlling the sludge quantity that the positive pressure batcher is supplied to the sludge delivery pump, the conveying pump control unit
The sludge quantity of the coal pulverizer is conveyed to for controlling the sludge delivery pump, the fuel control unit is conveyed to for controlling
The Coal-fired capacity of the coal pulverizer, the air blowing control unit is for controlling the hot blast rate for being conveyed to the coal pulverizer.
9. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 1, which is characterized in that coal pulverizer coal dust
Fineness is R90=35%-40%, coal-air ratio 1.95-2.8.
10. the method for the coal-powder boiler direct blending combustion sludge of environmental protection according to claim 1, which is characterized in that sludge and combustion
The coal dust that coal is mixed sprays into hearth combustion by being distributed in the burner of coal-powder boiler middle and upper part.
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| CN201810431066.4A CN108395072A (en) | 2018-05-08 | 2018-05-08 | The method of the coal-powder boiler direct blending combustion sludge of environmental protection |
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| CN201810431066.4A CN108395072A (en) | 2018-05-08 | 2018-05-08 | The method of the coal-powder boiler direct blending combustion sludge of environmental protection |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293214A (en) * | 2018-11-28 | 2019-02-01 | 辽宁科技大学 | The sludge fuel production method mixed with auxiliary fuel |
| CN111998363A (en) * | 2020-10-27 | 2020-11-27 | 长沙兴经达科技有限公司 | Negative-pressure totally-enclosed sludge blending combustion system and working method thereof |
| CN112178671A (en) * | 2020-09-30 | 2021-01-05 | 西安热工研究院有限公司 | Method and system suitable for increasing direct blending combustion proportion of wet coal slime for pulverized coal fired boiler |
| CN113915626A (en) * | 2021-10-29 | 2022-01-11 | 陕西大唐新能电力设计股份有限公司 | Feeding system for resource utilization of sludge incineration disposal and operation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114963A (en) * | 2015-09-30 | 2015-12-02 | 上海市城市建设设计研究总院 | Conveying system for dried sludge |
| CN106224997A (en) * | 2016-09-30 | 2016-12-14 | 上海垒锦环境科技中心 | The Combined type pulverizing system generated electricity for coal and mud coupling combustion |
| CN106642185A (en) * | 2016-11-14 | 2017-05-10 | 北京中矿环保科技股份有限公司 | Process and system for mixed burning of coal slime in big proportion in coal-powder boiler |
-
2018
- 2018-05-08 CN CN201810431066.4A patent/CN108395072A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114963A (en) * | 2015-09-30 | 2015-12-02 | 上海市城市建设设计研究总院 | Conveying system for dried sludge |
| CN106224997A (en) * | 2016-09-30 | 2016-12-14 | 上海垒锦环境科技中心 | The Combined type pulverizing system generated electricity for coal and mud coupling combustion |
| CN106642185A (en) * | 2016-11-14 | 2017-05-10 | 北京中矿环保科技股份有限公司 | Process and system for mixed burning of coal slime in big proportion in coal-powder boiler |
Non-Patent Citations (1)
| Title |
|---|
| 黄跃华等, 郑州：黄河水利出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293214A (en) * | 2018-11-28 | 2019-02-01 | 辽宁科技大学 | The sludge fuel production method mixed with auxiliary fuel |
| CN112178671A (en) * | 2020-09-30 | 2021-01-05 | 西安热工研究院有限公司 | Method and system suitable for increasing direct blending combustion proportion of wet coal slime for pulverized coal fired boiler |
| CN111998363A (en) * | 2020-10-27 | 2020-11-27 | 长沙兴经达科技有限公司 | Negative-pressure totally-enclosed sludge blending combustion system and working method thereof |
| CN113915626A (en) * | 2021-10-29 | 2022-01-11 | 陕西大唐新能电力设计股份有限公司 | Feeding system for resource utilization of sludge incineration disposal and operation method |
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