CN207991295U - A kind of cement kiln depth waste heat recovery collaboration refuse burning system - Google Patents
A kind of cement kiln depth waste heat recovery collaboration refuse burning system Download PDFInfo
- Publication number
- CN207991295U CN207991295U CN201820392641.XU CN201820392641U CN207991295U CN 207991295 U CN207991295 U CN 207991295U CN 201820392641 U CN201820392641 U CN 201820392641U CN 207991295 U CN207991295 U CN 207991295U
- Authority
- CN
- China
- Prior art keywords
- air
- valve
- refuse burning
- waste heat
- burning system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 239000004568 cement Substances 0.000 title claims abstract description 64
- 239000002918 waste heat Substances 0.000 title claims abstract description 47
- 238000011084 recovery Methods 0.000 title claims abstract description 33
- 238000000605 extraction Methods 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000010813 municipal solid waste Substances 0.000 claims description 29
- 230000000740 bleeding effect Effects 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- 239000008246 gaseous mixture Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000004056 waste incineration Methods 0.000 abstract description 26
- 238000004519 manufacturing process Methods 0.000 abstract description 25
- 230000005611 electricity Effects 0.000 abstract description 20
- 239000002699 waste material Substances 0.000 abstract description 18
- 238000010248 power generation Methods 0.000 abstract description 13
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000004575 stone Substances 0.000 abstract description 4
- 230000001172 regenerating effect Effects 0.000 description 17
- 239000012716 precipitator Substances 0.000 description 11
- 239000000428 dust Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 239000000284 extract Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 241000209202 Bromus secalinus Species 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Abstract
The utility model discloses a kind of cement kiln depth waste heat recoveries to cooperate with refuse burning system, belong to manufacture of cement waste heat recovery and technical field of waste incineration, including kiln hood residual neat recovering system, rotary kiln residual neat recovering system, bypass system and refuse burning system, kiln hood residual neat recovering system includes grate-cooler, first dust-extraction unit, waste heat boiler, second dust-extraction unit, blower unit and connecting pipe, rotary kiln residual neat recovering system includes air-supply arrangement, air heating apparatus and connecting pipe, bypass system includes third dust-extraction unit and connecting pipe, refuse burning system includes incinerator, a wind pipe and First air air preheater, secondary air duct and air preheater of secondary air.The utility model effectively reduces energy waste present in waste incineration and generating electricity and cement industry, and manufacture of cement operational efficiency is improved while effectively improving the overall power generation efficiency of waste incineration and generating electricity with killing two birds with one stone, reduces operation energy consumption.
Description
Technical field
The utility model belongs to manufacture of cement waste heat recovery and technical field of waste incineration, and in particular to a kind of cement kiln is deep
It spends waste heat recovery and cooperates with refuse burning system.
Background technology
In recent years, urban garbage disposal has become worldwide social concern, is one very arduous
Comprehensive, systemic engineering.Currently, many countries, especially some advanced countries in the world, to the place of domestic waste
Reason uses heat treating process, and what heat treating process was currently mainly used is burning method, and the rubbish that countries in the world generally use at present
Processing method has the characteristics that treating capacity is big, volume reduction is good and has thermal energy recycling.
Refuse incineration and power generation journey is more and more in China, the problem of alleviating some refuse pollutions.But garbage power
The flying dust harmful components of factory are high, belong to dangerous waste one kind, it is necessary to pass through stringent technical finesse, it is this usually by landfill disposal
The flying dust of landfill still has the danger of pollution environment and occupies part place.The stove of the waste incinerator discharge of refuse-burning plant
Slag generally uses burying method to handle, due in garbage slag there are harmful components such as heavy metals, this method there are still
The lime-ash of the refuse-burning plant landfill of some countries such as danger of environmental pollution, such as Japan occurs polluting the accident of environment,
There are some landfill yards that will fill after lime-ash digs up and has been sent into cement rotary kiln incineration disposal.
Waste incineration and generating electricity has the characteristics that garbage treatment quantity is big, volume reduction is good, additionally it is possible to convert the thermal energy of rubbish to electricity
Energy.Clinker and flying dust are sent into cement production system produced by burning so that soot object is handled well.In addition, cement
Production system is power consumption rich and influential family, and waste incineration electricity will be directly used in cement production system, and it is outside both to have reduced rubbish electricity
The waste of electric energy and the investment construction of transmission facility in electricity transmission process caused by conveying, and solve the need of a large amount of power consumptions in cement plant
It asks.Therefore, refuse incineration and power generation journey and cement works collaborative building are a kind of feasible methods of operation.
But current refuse incineration and power generation journey is with cement works collaborative building still in research and trial stage, waste incineration
There are energy waste in power generation and cement industry, there is the overall power generation efficiency of waste incineration and generating electricity is low, manufacture of cement fortune
Line efficiency is low and problem that operation energy consumption is high.
Utility model content
The purpose of this utility model is that：It is proposed a kind of cement kiln depth waste heat recovery collaboration refuse burning system, effectively
Energy waste present in waste incineration and generating electricity and cement industry is reduced, effectively improves waste incineration and generating electricity with killing two birds with one stone
Manufacture of cement operational efficiency is improved while overall power generation efficiency, reduces operation energy consumption.
The utility model aim is realized by following technical proposals：
A kind of cement kiln depth waste heat recovery collaboration refuse burning system, it is characterised in that：Including kiln hood waste heat recovery system
System and refuse burning system, kiln hood residual neat recovering system include grate-cooler, the first dust-extraction unit, waste heat boiler, the second dedusting dress
It sets, blower unit and connecting pipe, refuse burning system include incinerator, a wind pipe and First air air preheater, two
Secondary wind pipeline and air preheater of secondary air, a wind pipe are primary for incinerator supply heat after First air air preheater
Wind, secondary air duct supply hot Secondary Air after air preheater of secondary air for incinerator；In kiln hood residual neat recovering system,
Bleeding point is arranged in the middle part of grate-cooler and tail portion, and the hot-air extracted from middle part bleeding point enters waste heat pot by the first dust-extraction unit
Stove is incorporated to First air air preheat by the second dust-extraction unit dedusting after residual heat boiler for exchanging heat after being drawn by blower unit
In a wind pipe after device, or it is incorporated in the secondary air duct after air preheater of secondary air；It is extracted from tail portion bleeding point
Hot-air enter the second dust-extraction unit.
Alternatively, in kiln hood residual neat recovering system, valve is set on pump-line in the middle part of the grate-cooler, is evacuated in tail portion
Valve is set on pipeline, when waste heat boiler normal operation, valve opening on the pump-line of middle part, valve on the pump-line of tail portion
It closes；When waste heat boiler off-the-line, valve is closed on the pump-line of middle part, valve opening on the pump-line of tail portion.In the program,
Valve is set on pump-line in the middle part of the grate-cooler, valve is set on the pump-line of tail portion, when waste heat boiler normal operation,
Valve opening on the pump-line of middle part, valve is closed on the pump-line of tail portion, and hot-air enters the second dedusting by waste heat boiler
Device, when waste heat boiler off-the-line, valve is closed on the pump-line of middle part, valve opening on the pump-line of tail portion, and hot-air is straight
It taps into the second dust-extraction unit.
Alternatively, blower unit outlet conduit is connected to chimney and is connected to rubbish by valve and burns by valve respectively
Burning system closes the valve that is connected with chimney when refuse burning system normal operation, opens and refuse burning system associated valve
Door；When refuse burning system off-the-line, the valve that is connected with refuse burning system is closed, opens the valve that is connected with chimney.The program
In, blower unit outlet conduit is connected to chimney by valve and is connected to refuse burning system by valve, works as waste incineration
When system normal operation, the valve that is connected with chimney is closed, opens the valve that is connected with refuse burning system, hot-air enters rubbish and burns
Burning system closes the valve that is connected with refuse burning system when refuse burning system off-the-line, opens the connected valve of chimney, and heat is empty
Gas is discharged into air.
Alternatively, further include rotary kiln residual neat recovering system, rotary kiln residual neat recovering system includes air-supply arrangement, air
Cold air is sent into air heating dress by heating device and connecting pipe in rotary kiln residual neat recovering system by air-supply arrangement
It sets, absorbs the heat that rotary kiln distributes, and the heat for drawing blower unit in kiln hood residual neat recovering system in rotary kiln surface
When air is incorporated to a wind pipe, after the hot-air part after air heating means heats is incorporated to air preheater of secondary air
It, will in secondary air duct, or when the hot-air that blower unit is drawn is incorporated to secondary air duct by kiln hood residual neat recovering system
Hot-air part after air heating means heats is incorporated in a wind pipe after First air air preheater.
Further include bypass system, bypass system includes third dust-extraction unit and connection as further selection
Pipeline, in bypass system, the part hot-air introduced from rotary kiln residual neat recovering system is mixed with bypass, through
Gaseous mixture after three dust-extraction unit dedustings is sent into refuse burning system, and the part combustion air as refuse burning system uses.
As further selection, valve is set on the pipeline that rotary kiln residual neat recovering system is connect with refuse burning system
Door, when refuse burning system normal operation by valve opening, closes valve when refuse burning system off-the-line；With bypass
Valve is set on the pipeline of system of leaking informaton connection, when bypass system normal operation by valve opening, when bypass system
Valve is closed when off-the-line of uniting.
As further selection, on bypass system introduction pipe and in third dust-extraction unit and waste incineration system
Valve is set on the connected pipeline of system, when bypass system is put into, while opening bypass system introduction pipe upper valve
Door, the valve being connected with refuse burning system and the valve being connected with rotary kiln residual neat recovering system, when bypass system
When off-the-line, connected valve is closed.
Alternatively, setting control valve is exported in First air air preheater.
Alternatively, setting control valve is exported in air preheater of secondary air.
The aforementioned main scheme of the utility model and its each further selection scheme can be freely combined to form multiple schemes,
The scheme that can be used and be claimed for the utility model；And the utility model, (each non conflicting selection) selection between and and
It can also be freely combined between other selections.Those skilled in the art after understanding the utility model according to the prior art and
Common knowledge can be illustrated there are many combination, be the claimed technical solution of the utility model, do not do exhaustion herein.
The course of work：In the utility model, in order to reduce the wave of the energy present in waste incineration and generating electricity and cement industry
Take, manufacture of cement operational efficiency is improved while improving the overall power generation efficiency of waste incineration and generating electricity with killing two birds with one stone, reduces fortune
Row energy consumption, utility model people in depth have studied waste incineration and generating electricity and cement production process, are found in research：
In refuse incineration and power generation journey, in order to make waste of low heating value preferably burn, it to be used for one, the two of incineration firing
Secondary air temperature should fully consider that refuse moisture is high, ash content is high, the lower characteristic of calorific value, and it is pre- that burning air has to pass through steam air
After hot device heating, incinerator could be sent into.Burning air into incinerator burner hearth should be maintained at stable temperature.This temperature
It needs to heat the flow of steam by adjusting to maintain.First air enters before incinerator, first passes through steam regenerative air heater
It is heated to 200-220 DEG C, is then blown from stove lower segment.Secondary Air enters before incinerator, and it is pre- to first pass through steam-type air
Hot device is heated to 150-180 DEG C, is then grouped from the front and back arch of incinerator and uniformly sprays into Secondary Air, reinforced the disturbance of flue gas, prolong
The fire stroke of long flue gas, makes air be sufficiently mixed with flue gas, ensures that fuel gas thoroughly burns in flue gas.But this articles for use
The higher steam of taste has been bound to cause the waste of high-quality heat source come the method that heats air.
However, there is also a large amount of heat waste in cement production system, wind turbine rouses in cement clinker burning system
The normal temperature air for entering grate-cooler, cools down clinker, is discharged, leads to as exhaust gas by the heated air part of high temperature chamotte
It is often recycled by building mating Waste Heat Power Station, this portion is introduced to the residual heat boiler for exchanging heat of Waste Heat Power Station.It is remaining
The exhaust gas of hot pot outlet of still can be down to 100 DEG C or so.Simultaneously in the low of about 120 DEG C of the exhaust outlet discharge temperature of cooling drive end unit
Warm exhaust gas, this two parts low temperature waste gas carry amount of heat and are discharged from chimney, result in a large amount of wastes of energy.
Cement production system kiln is since internal temperature is very high, although cylinder wall surface takes various insulations to arrange
It applies, but its surface can still reach certain temperature.To ensure the safe handling of rotary kiln.Its most of kiln body is direct
Exposure in air, in some special cases, can also use wind turbine progress kiln cylinder body surface air-cooled, to reduce kiln cylinder body surface
Temperature.Although this layout can meet the needs of rotary kiln running, cause a large amount of during rotary kiln running
Thermal energy is directly lost in air, and a large amount of wastes of energy are resulted in.
In addition, in cement production system, the high situation of chlorion (Cl-) content that crude fuel is brought into is encountered sometimes,
The chlorion (Cl-) of volatilization can condense in when reaching temperature lower region in preheater in the lower raw material of temperature, the chlorine of condensation
Ion (Cl-) is come with preheated raw meal again in the higher kiln of temperature, and volatilizees again, causes chlorion (Cl-) can be in kiln system
The internal cycle of system and enrichment, are easy to generate skinning in pre-heating system, or even result in blockage, seriously affect system production and product
Quality, so, it is to solve harmful constituent cycle that bypass measure appropriate is often taken in manufacture of cement, reduces in clinker and is harmful to
The practical method of component.But what bypass exhausted is the very high exhaust gas of temperature, results in a large amount of wastes of energy.
Therefore, the utility model proposes a kind of cement kiln depth waste heat recoveries to cooperate with refuse burning system, including more than kiln hood
Heat recovery system, rotary kiln residual neat recovering system, bypass system, refuse burning system, wherein in kiln hood waste heat recovery system
In system, in the middle part of grate-cooler and bleeding point is arranged in tail portion, and the higher hot-air of temperature extracted from middle part bleeding point passes through first
It is drawn into waste heat boiler by blower unit by the second dust-extraction unit dedusting after residual heat boiler for exchanging heat after dust-extraction unit,
Since the air of blower unit outlet is still the hot-air for having certain temperature, using this hot-air as the part of refuse burning system
Primary and secondary air uses.
In rotary kiln residual neat recovering system, cold air is sent by air heating apparatus by air-supply arrangement, in rotary kiln
The heat that Surface absorption rotary kiln distributes, the hot-air after this is heated make as the part primary and secondary air of refuse burning system
With, simultaneously because this part hot air temperature is relatively low, cooling air of a small amount of hot-air as bypass system.
In bypass system, since bypass temperature is higher, nuisance need to cool down bypass still in gaseous state
To 400-450 DEG C, nuisance is allowed to condense, a small amount of hot-air is introduced from rotary kiln residual neat recovering system and is mixed with bypass,
It drops to and introduces third dust-extraction unit after suitable temperature nuisance is solidificated in dust, the gaseous mixture after dedusting is sent into rubbish and is burnt
Burning system, the part combustion air as refuse burning system use.
In addition, in refuse burning system, usual First air cheats interior extraction air from garbage storing, makes pressure dimension in garbage storing hole
It holds in negative pressure state, prevents foul smell from escaping, Secondary Air extracts the foul smell in incinerator dispenser seal closure, maintains air between burning
Environment.Due to needed for waste incineration First air and Secondary Air temperature it is relatively low, and by kiln hood residual neat recovering system and rotary kiln
The hot-air that residual neat recovering system is sent has had certain temperature and flow, only needs primary air fan that a small amount of air is sent into one
Secondary wind steam regenerative air heater, a small amount of air is sent into Secondary Air steam regenerative air heater by overfire air fan, by external
After heating steam heating be sent into incinerator after being mixed to the hot wind of cement production system.In addition, bypass system has
The gaseous mixture of higher temperature is directly entered waste incinerator, and the part combustion air as refuse burning system uses.In First air
Control valve is arranged in steam regenerative air heater exit, controls the temperature and flow of First air, makes First air and comes to cement
After the hot wind mixing of system, mixes the temperature of hot wind and flow disclosure satisfy that the requirement of incinerator, in Secondary Air steam-type air
Preheater outlet setting control valve, controls the temperature and flow of Secondary Air, makes Secondary Air and comes mixed to the hot wind of cement system
After conjunction, mixes the temperature of hot wind and flow disclosure satisfy that the requirement of incinerator.
The beneficial effects of the utility model：A kind of cement kiln depth waste heat recovery collaboration rubbish provided by the utility model is burnt
Waste incineration and cement kiln waste heat recovery are organically combined, are effectively reduced in waste incineration and generating electricity and cement industry by burning system
Existing energy waste, effectively improve waste incineration and generating electricity overall power generation efficiency with killing two birds with one stone while, improve manufacture of cement
Operational efficiency reduces operation energy consumption, has good economic benefit and environmental benefit：
Cement kiln waste heat depth is recycled 1. realizing, take full advantage of the relatively low hot-air of temperature of kiln head and is returned
Cement kiln low temperature exhaust heat is recycled one, two come needed for partial alternative waste incineration by the radiation loss of rotary kiln drum surface
Secondary wind reduces the quantity of steam for heating air, and with low-quality heat source instead of high-quality heat source, the steam of high-quality is used
In power generation, improves the overall power generation efficiency of waste incineration and generating electricity and improve manufacture of cement operational efficiency, reduce operation energy consumption.
2. when the chloride ion content that crude fuel brings cement production system into is unstable, bypass system not timing is frequently opened
When the operating mode that start-stop stops, connected system valve need to be only turned on and off；Meanwhile when the unlatching of bypass system, from
A small amount of hot-air is introduced in rotary kiln residual neat recovering system to mix with bypass, is dropped to suitable temperature nuisance and is solidificated in dust
In after introduce high temperature dust-precipitator, gaseous mixture after dedusting is sent into refuse burning system, the part as refuse burning system
Combustion air uses, and can meet cement production system requirement and influence refuse burning system normal operation, while can also be by this
Partial heat recycles.
3. realizing that rubbish power generation by waste combustion is complementary with manufacture of cement, clinker produced by waste incineration and flying dust are sent into manufacture of cement
In system so that soot object is handled well.Waste incineration and generating electricity has the characteristics that garbage treatment quantity is big, volume reduction is good, also
The thermal energy of rubbish can be converted to electric energy, waste incineration electricity will be directly used in cement production system, both reduce rubbish hair
Electricity outward conveying caused by electricity transmission process in the waste of electric energy and the investment construction of transmission facility, and solve cement kiln it is a large amount of
The demand of power consumption.
Description of the drawings
Fig. 1 is the device flow diagram of the utility model embodiment 1；
Fig. 2 is the device flow diagram of the utility model embodiment 2；
Wherein 1---- grate-coolers, 2---- dust-precipitators, 3----AQC boilers, 4---- dedusters, 5---- air-introduced machines,
6---- chimneys, 7---- pressure fan, 8---- air heating apparatus, 9---- high temperature dust-precipitators, 10---- incinerators, 11---- mono-
Secondary wind turbine, 12---- First air steam regenerative air heaters, 13---- overfire air fans, 14---- Secondary Air steam-type air preheats
Device, 15---- rotary kilns, 16---- dore furnaces, 17---- system for cleaning fume, 18---- valves.
Specific implementation mode
Following non-limiting examples are for illustrating the utility model.
Embodiment 1：
Refering to what is shown in Fig. 1, cement kiln depth waste heat recovery cooperates with refuse burning system by kiln hood residual neat recovering system, revolution
Kiln residual neat recovering system, bypass system, refuse burning system composition, kiln hood residual neat recovering system include grate-cooler 1, gather dust
Device 2 (the first dust-extraction unit), AQC boilers 3 (waste heat boiler), deduster 4 (the second dust-extraction unit), air-introduced machine 5 (blower unit),
Chimney 6 and connecting pipe, rotary kiln residual neat recovering system include pressure fan 7 (air-supply arrangement), air heating apparatus 8 and connecting tube
Road, bypass system include high temperature dust-precipitator 9 and connecting pipe, refuse burning system include incinerator 10, primary air fan 11,
First air steam regenerative air heater 12, overfire air fan 13, Secondary Air steam regenerative air heater 14 and connecting pipe.
In kiln hood residual neat recovering system, bleeding point is set at 1 middle part of grate-cooler and tail portion, is extracted from middle part bleeding point
The higher hot-air of temperature enters AQC boilers 3 by dust-precipitator 2, by 4 dedusting of deduster after the heat exchange of AQC boilers 3, from tail
The hot-air that portion's bleeding point extracts also enters 4 dedusting of deduster, is then drawn by air-introduced machine 5, the sky exported due to air-introduced machine 5
Gas is still the hot-air for having certain temperature, is used this hot-air as the part First air of refuse burning system.
Valve 18 is set on 1 middle part pump-line of grate-cooler, valve 18 is set on the pump-line of tail portion, when AQC pots
When 3 normal operation of stove, valve 18 is opened on the pump-line of middle part, and valve 18 is closed on the pump-line of tail portion, and hot-air passes through AQC
Boiler 3 enters deduster 4, and when AQC 4 off-the-lines of boiler, valve 18 is closed on the pump-line of middle part, valve on the pump-line of tail portion
18 open, and hot-air is directly entered deduster 4, and 5 outlet conduit of air-introduced machine by valve 18 is connected to chimney 6 and by valve 18
It is connected to refuse burning system, when refuse burning system normal operation, closes the valve 18 that is connected with chimney 6, unlatching and rubbish
Incineration system is connected valve 18, and hot-air enters refuse burning system, when 10 off-the-line of incinerator, closes and refuse burning system
Be connected valve 18, opens chimney 6 and is connected valve 18, hot-air is discharged into air.
In rotary kiln residual neat recovering system, cold air is sent by air heating apparatus 8 by pressure fan 7, in rotary kiln
The heat that Surface absorption rotary kiln distributes, the hot-air after this is heated are used as the part Secondary Air of refuse burning system,
Simultaneously because this part hot air temperature is relatively low, cooling air of a small amount of hot-air as bypass system.With
Valve 18 is set on the pipeline of refuse burning system connection, valve 18 is opened when refuse burning system normal operation, works as rubbish
Valve 18 is closed when rubbish incineration system off-the-line, valve 18 is set on the pipeline being connect with bypass system, when bypass is put
Valve 18 is opened when wind system normal operation, closes valve 18 when bypass system sectionalizing.
In bypass system, since bypass temperature is higher, nuisance need to cool down bypass still in gaseous state
To 400-450 DEG C, nuisance is allowed to condense, a small amount of hot-air is introduced from rotary kiln residual neat recovering system and is mixed with bypass,
It drops to and introduces high temperature dust-precipitator 9 (third dust-extraction unit) after suitable temperature nuisance is solidificated in dust, it is mixed after dedusting
It closes pneumatic transmission and enters refuse burning system, the part combustion air as refuse burning system uses.In bypass system introduction pipe
Valve 18 above and on the pipeline that high temperature dust-precipitator 9 is connected with refuse burning system is set, when bypass system is put into,
Open valve 18 on bypass system introduction pipe, the valve 18 being connected with refuse burning system and rotary kiln waste heat simultaneously
The connected valve 18 of recovery system closes connected valve 18 when bypass system sectionalizing.
In refuse burning system, usual First air cheats interior extraction air from garbage storing, and pressure in garbage storing hole is made to maintain
Negative pressure state prevents foul smell from escaping, and Secondary Air extracts the foul smell in incinerator dispenser seal closure, maintains air ring between burning
Border.Due to needed for waste incineration First air and Secondary Air temperature it is relatively low, and by more than kiln hood residual neat recovering system and rotary kiln
The hot-air that heat recovery system is sent has had certain temperature and flow, only needs primary air fan 11 that a small amount of air is sent into one
A small amount of air is sent into Secondary Air steam regenerative air heater 14 by secondary wind steam regenerative air heater 12, overfire air fan 13, is led to
Cross after the heating of external heating steam with come feeding incinerator 10 after being mixed to the hot wind of cement production system.In addition, bypass
There is system the gaseous mixture of higher temperature to be directly entered waste incinerator 10, and the part combustion air as refuse burning system makes
With.Control valve 18 is set in 12 exit of First air steam regenerative air heater, controls the temperature and flow of First air, makes one
Secondary wind and the requirement that disclosure satisfy that incinerator 10 come the temperature and flow that after being mixed to the hot wind of cement system, mix hot wind,
Secondary Air steam regenerative air heater 13 outlet setting control valve 18, control the temperature and flow of Secondary Air, make Secondary Air with
Come to the hot wind mixing of cement system, mixes the temperature of hot wind and flow disclosure satisfy that the requirement of incinerator 10.
Embodiment 2：
Refering to what is shown in Fig. 2, cement kiln depth waste heat recovery cooperates with refuse burning system by kiln hood residual neat recovering system, revolution
Kiln residual neat recovering system, bypass system, refuse burning system composition, kiln hood residual neat recovering system include grate-cooler 1, gather dust
Device 2 (the first dust-extraction unit), AQC boilers 3 (waste heat boiler), deduster 4 (the second dust-extraction unit), air-introduced machine 5 (blower unit),
Chimney 6 and connecting pipe, rotary kiln residual neat recovering system include pressure fan 7 (air-supply arrangement), air heating apparatus 8 and connecting tube
Road, bypass system include high temperature dust-precipitator 9 and connecting pipe, refuse burning system include incinerator 10, primary air fan 11,
First air steam regenerative air heater 12, overfire air fan 13, Secondary Air steam regenerative air heater 14 and connecting pipe.
In kiln hood residual neat recovering system, bleeding point is set at 1 middle part of grate-cooler and tail portion, is extracted from middle part bleeding point
The higher hot-air of temperature enters AQC boilers 3 by dust-precipitator 2, by 4 dedusting of deduster after the heat exchange of AQC boilers 3, from tail
The hot-air that portion's bleeding point extracts also enters 4 dedusting of deduster, is then drawn by air-introduced machine 5, the sky exported due to air-introduced machine 5
Gas is still the hot-air for having certain temperature, is used this hot-air as the part Secondary Air of refuse burning system.
Valve 18 is set on 1 middle part pump-line of grate-cooler, valve 18 is set on the pump-line of tail portion, when AQC pots
When 3 normal operation of stove, valve 18 is opened on the pump-line of middle part, and valve 18 is closed on the pump-line of tail portion, and hot-air passes through AQC
Boiler 3 enters deduster 4, and when AQC 4 off-the-lines of boiler, valve 18 is closed on the pump-line of middle part, valve on the pump-line of tail portion
18 open, and hot-air is directly entered deduster 4, and 5 outlet conduit of air-introduced machine by valve 18 is connected to chimney 6 and by valve 18
It is connected to refuse burning system, when refuse burning system normal operation, closes the valve 18 that is connected with chimney 6, unlatching and rubbish
Incineration system is connected valve 18, and hot-air enters refuse burning system, when 10 off-the-line of incinerator, closes and refuse burning system
Be connected valve 18, opens chimney 6 and is connected valve 18, hot-air is discharged into air.
In rotary kiln residual neat recovering system, cold air is sent by air heating apparatus 8 by pressure fan 7, in rotary kiln
The heat that Surface absorption rotary kiln distributes, the hot-air after this is heated are used as the part First air of refuse burning system,
Simultaneously because this part hot air temperature is relatively low, cooling air of a small amount of hot-air as bypass system.With
Valve 18 is set on the pipeline of refuse burning system connection, valve 18 is opened when refuse burning system normal operation, works as rubbish
Valve 18 is closed when rubbish incineration system off-the-line, valve 18 is set on the pipeline being connect with bypass system, when bypass is put
Valve 18 is opened when wind system normal operation, closes valve 18 when bypass system sectionalizing.
In bypass system, since bypass temperature is higher, nuisance need to cool down bypass still in gaseous state
To 400-450 DEG C, nuisance is allowed to condense, a small amount of hot-air is introduced from rotary kiln residual neat recovering system and is mixed with bypass,
It drops to and introduces high temperature dust-precipitator 9 (third dust-extraction unit) after suitable temperature nuisance is solidificated in dust, it is mixed after dedusting
It closes pneumatic transmission and enters refuse burning system, the part combustion air as refuse burning system uses.In bypass system introduction pipe
Valve 18 above and on the pipeline that high temperature dust-precipitator 9 is connected with refuse burning system is set, when bypass system is put into,
Open valve 18 on bypass system introduction pipe, the valve 18 being connected with refuse burning system and rotary kiln waste heat simultaneously
The connected valve 18 of recovery system closes connected valve 18 when bypass system sectionalizing.
In refuse burning system, usual First air cheats interior extraction air from garbage storing, and pressure in garbage storing hole is made to maintain
Negative pressure state prevents foul smell from escaping, and Secondary Air extracts the foul smell in incinerator dispenser seal closure, maintains air ring between burning
Border.Due to needed for waste incineration First air and Secondary Air temperature it is relatively low, and by more than kiln hood residual neat recovering system and rotary kiln
The hot-air that heat recovery system is sent has had certain temperature and flow, only needs primary air fan 11 that a small amount of air is sent into one
A small amount of air is sent into Secondary Air steam regenerative air heater 14 by secondary wind steam regenerative air heater 12, overfire air fan 13, is led to
Cross after the heating of external heating steam with come feeding incinerator 10 after being mixed to the hot wind of cement production system.In addition, bypass
There is system the gaseous mixture of higher temperature to be directly entered waste incinerator 10, and the part combustion air as refuse burning system makes
With.Control valve 18 is set in 12 exit of First air steam regenerative air heater, controls the temperature and flow of First air, makes one
Secondary wind and the requirement that disclosure satisfy that incinerator 10 come the temperature and flow that after being mixed to the hot wind of cement system, mix hot wind,
Secondary Air steam regenerative air heater 13 outlet setting control valve 18, control the temperature and flow of Secondary Air, make Secondary Air with
Come to the hot wind mixing of cement system, mixes the temperature of hot wind and flow disclosure satisfy that the requirement of incinerator 10.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. a kind of cement kiln depth waste heat recovery cooperates with refuse burning system, it is characterised in that：Including kiln hood residual neat recovering system
And refuse burning system, kiln hood residual neat recovering system include grate-cooler, the first dust-extraction unit, waste heat boiler, the second dust-extraction unit,
Blower unit and connecting pipe, refuse burning system include incinerator, a wind pipe and First air air preheater, Secondary Air
Pipeline and air preheater of secondary air, a wind pipe are incinerator supply heat primary air after First air air preheater, two
Secondary wind pipeline supplies hot Secondary Air after air preheater of secondary air for incinerator；In kiln hood residual neat recovering system, in cooling
Bleeding point is arranged in the middle part of machine and tail portion, and the hot-air extracted from middle part bleeding point enters waste heat boiler by the first dust-extraction unit,
By the second dust-extraction unit dedusting after residual heat boiler for exchanging heat, after First air air preheater is incorporated to after being drawn by blower unit
A wind pipe in, or be incorporated in the secondary air duct after air preheater of secondary air；The heat extracted from tail portion bleeding point
Air enters the second dust-extraction unit.
2. cement kiln depth waste heat recovery as described in claim 1 cooperates with refuse burning system, it is characterised in that：Kiln hood waste heat
In recovery system, valve is set on pump-line in the middle part of the grate-cooler, valve is set on the pump-line of tail portion, works as waste heat boiler
When normal operation, valve opening on the pump-line of middle part, valve is closed on the pump-line of tail portion；When waste heat boiler off-the-line, in
Valve is closed on portion's pump-line, valve opening on the pump-line of tail portion.
3. cement kiln depth waste heat recovery as described in claim 1 cooperates with refuse burning system, it is characterised in that：Blower unit
Outlet conduit is connected to chimney by valve respectively and is connected to refuse burning system by valve, when refuse burning system is normal
When operation, the valve that is connected with chimney is closed, opens the valve that is connected with refuse burning system；When refuse burning system off-the-line, close
The valve that is connected with refuse burning system is closed, the valve that is connected with chimney is opened.
4. cement kiln depth waste heat recovery as described in claim 1 cooperates with refuse burning system, it is characterised in that：Further include back
Rotary kiln residual neat recovering system, rotary kiln residual neat recovering system include air-supply arrangement, air heating apparatus and connecting pipe, are being turned round
In kiln residual neat recovering system, cold air is sent by air heating apparatus by air-supply arrangement, absorbs rotary kiln in rotary kiln surface
The heat distributed, and when the hot-air that blower unit is drawn is incorporated to a wind pipe by kiln hood residual neat recovering system, it will be empty
Hot-air part after gas heating devices heat is incorporated in the secondary air duct after air preheater of secondary air, or more than the kiln hood
When the hot-air that blower unit is drawn is incorporated to secondary air duct by heat recovery system, by the hot-air after air heating means heats
It is partly incorporated in a wind pipe after First air air preheater.
5. cement kiln depth waste heat recovery as claimed in claim 4 cooperates with refuse burning system, it is characterised in that：It further include side
Road is leaked informaton system, and bypass system includes third dust-extraction unit and connecting pipe, in bypass system, from rotary kiln waste heat
The part hot-air introduced in recovery system is mixed with bypass, and the gaseous mixture after third dust-extraction unit dedusting is sent into rubbish
Incineration system, the part combustion air as refuse burning system use.
6. cement kiln depth waste heat recovery as claimed in claim 5 cooperates with refuse burning system, it is characterised in that：In rotary kiln
Valve is set on the pipeline that residual neat recovering system is connect with refuse burning system, when refuse burning system normal operation by valve
It opens, closes valve when refuse burning system off-the-line；Valve is set on the pipeline being connect with bypass system, works as side
Road leak informaton system normal operation when by valve opening, valve is closed when bypass system sectionalizing.
7. cement kiln depth waste heat recovery as claimed in claim 6 cooperates with refuse burning system, it is characterised in that：It is put in bypass
Valve is set on wind system introduction pipe and on the pipeline that third dust-extraction unit is connected with refuse burning system, when bypass is put
Wind system put into when, while open valve on bypass system introduction pipe, the valve being connected with refuse burning system and
The valve being connected with rotary kiln residual neat recovering system closes connected valve when bypass system sectionalizing.
8. cement kiln depth waste heat recovery as described in claim 1 cooperates with refuse burning system, it is characterised in that：In First air
Air preheater outlet setting control valve.
9. cement kiln depth waste heat recovery as described in claim 1 cooperates with refuse burning system, it is characterised in that：In Secondary Air
Air preheater outlet setting control valve.
10. cement kiln depth waste heat recovery as described in claim 1 cooperates with refuse burning system, it is characterised in that：Rubbish is burnt
Incinerator is grate type incinerator or fluidized bed incinerator in burning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820392641.XU CN207991295U (en) | 2018-03-22 | 2018-03-22 | A kind of cement kiln depth waste heat recovery collaboration refuse burning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820392641.XU CN207991295U (en) | 2018-03-22 | 2018-03-22 | A kind of cement kiln depth waste heat recovery collaboration refuse burning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207991295U true CN207991295U (en) | 2018-10-19 |
Family
ID=63828646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820392641.XU Withdrawn - After Issue CN207991295U (en) | 2018-03-22 | 2018-03-22 | A kind of cement kiln depth waste heat recovery collaboration refuse burning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207991295U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317864A (en) * | 2018-03-22 | 2018-07-24 | 成都建筑材料工业设计研究院有限公司 | A kind of cement kiln depth waste heat recovery collaboration refuse burning system |
| CN111908543A (en) * | 2020-09-17 | 2020-11-10 | 成都建筑材料工业设计研究院有限公司 | Direct waste heat source cement production and seawater desalination combined implementation system and method |
-
2018
- 2018-03-22 CN CN201820392641.XU patent/CN207991295U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317864A (en) * | 2018-03-22 | 2018-07-24 | 成都建筑材料工业设计研究院有限公司 | A kind of cement kiln depth waste heat recovery collaboration refuse burning system |
| CN108317864B (en) * | 2018-03-22 | 2024-02-02 | 成都建筑材料工业设计研究院有限公司 | Cement kiln deep waste heat recovery cooperated garbage incineration system |
| CN111908543A (en) * | 2020-09-17 | 2020-11-10 | 成都建筑材料工业设计研究院有限公司 | Direct waste heat source cement production and seawater desalination combined implementation system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108317864A (en) | A kind of cement kiln depth waste heat recovery collaboration refuse burning system | |
| CN102705837B (en) | System and method for collaborative garbage disposal of cement clinker production line | |
| CN201395570Y (en) | Clean vertical heat recovery coke oven | |
| CN207991295U (en) | A kind of cement kiln depth waste heat recovery collaboration refuse burning system | |
| CN107894173A (en) | A kind of full negative pressure coke stoving process of flue gas self-circulation type and system | |
| CN206430361U (en) | A kind of industrial production boiler | |
| CN203615314U (en) | New energy-saving system of semi-hermetic submerged arc furnace | |
| CN203810456U (en) | Multifunctional biomass stove | |
| CN207793163U (en) | A kind of self-loopa tunnel type carbonizing kiln | |
| CN206430357U (en) | A kind of secondary environment protection vertical boiler utilized of waste heat | |
| CN218721507U (en) | High-efficient domestic waste burns burning furnace air distribution system | |
| CN108278905A (en) | A kind of private station boiler and cement kiln waste heat recovery coupled system | |
| CN110805911A (en) | Self-discharging type incineration waste ash melting treatment device | |
| CN207991296U (en) | A kind of private station boiler and cement kiln waste heat recovery coupled system | |
| CN205261563U (en) | Environment -friendly waste incinerator | |
| KR100757781B1 (en) | Carbonization apparatus for organic waste | |
| CN202719614U (en) | Cement clinker production line co-processing garbage system | |
| CN208804680U (en) | A kind of external airway device of refuse pyrolysis gasification furnace | |
| CN111536533A (en) | Incineration sludge treatment process and equipment thereof | |
| CN111442637A (en) | Heating device of grain drying tower | |
| CN206695603U (en) | Built-in accumulation of heat iron-bits melting furnace | |
| CN206787262U (en) | Energy saving and environment friendly rock wool drying hot-blast stove | |
| CN207019072U (en) | A kind of domestic garbage pyrolysis wet flue gas recycling device | |
| CN105331379A (en) | Power generation system and power generation method | |
| CN201034321Y (en) | Burning decontamination plant treating life refuse by employing air-swept mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181019 Effective date of abandoning: 20240202 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181019 Effective date of abandoning: 20240202 |