CN206817474U - A kind of system of grate furnace waste incineration cooperatively processing sludge - Google Patents
A kind of system of grate furnace waste incineration cooperatively processing sludge Download PDFInfo
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- CN206817474U CN206817474U CN201720563046.3U CN201720563046U CN206817474U CN 206817474 U CN206817474 U CN 206817474U CN 201720563046 U CN201720563046 U CN 201720563046U CN 206817474 U CN206817474 U CN 206817474U
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The utility model discloses a kind of system of grate furnace waste incineration cooperatively processing sludge, belong to sludge treatment field, including the grate furnace being sequentially connected, waste heat boiler, steam turbine, also include sludge drying machine, provided with wet mud entrance, dewatered sludge exports, Waste gas outlet, steam inlet and steam (vapor) outlet, the wet mud entrance is used to import wet mud, the dewatered sludge outlet is connected with grate furnace garbage inlet, the Waste gas outlet is connected by water washing device with grate furnace intake stack, the steam of the steam inlet and steam turbine transfers mouth connection, the steam (vapor) outlet is connected by condenser with waste heat boiler admission port.The utility model realizes the effective desiccation and collaboration burning to sludge using existing and ripe grate furnace garbage incineration technology, the independent desiccation of sludge, the construction of burning disposal project and operating cost can be substantially reduced, realizes the innoxious of Treatment of Sludge, minimizing and recycling.
Description
Technical field
The utility model belongs to technical field of sludge treatment, and in particular to a kind of grate furnace waste incineration cooperatively processing sludge
System.
Background technology
With the quickening of the high speed development and Urbanization Construction of economic society, the sewage load in cities and towns increases rapidly, dirty
The also sharp increase of the sludge of water treatment plant, the annual production of the current urban sewage treatment plant sludge of China is more than 30,000,000 according to statistics
Ton.Containing nutrients, heavy metal and germs and pathogen etc. such as substantial amounts of organic matter, abundant nitrogen phosphorus in sludge, if not
It is acted upon being allowed to discharge, serious pollution can be caused to environment.How effectively and economically to handle disposing sludge and realize dirty
Mud resource using turning into a global environmental problem, and the problem of one of China facing can not avoid.
The processing disposal options of sludge mainly have that sanitary landfills, land use and burning etc. are a variety of at present, but all have one
The drawbacks of determining and deficiency.Sanitary landfills is likely to occur harmful substance Leakage for Groundwater and polluted, and will take more soil
Ground resource；Land use is likely to occur that agricultural product are contaminated and public's safety problem；Sludge incineration is had to by certain
The desiccation of degree, the independent desiccation of prior art sludge, the construction of burning disposal project and operating cost are high, and popularization and application are limited.
Burning disposal has been increasingly becoming the primary solutions of domestic waste at present, can effectively realize house refuse
Innoxious, minimizing and recycling.Also certain organic matter and pollutant are contained in sludge, effective processing disposal of sludge is one
Urgent problem, how to be asked using the advantage of incineration treatment of garbage to solve the harmless treatment of sludge and recycling
Topic, become the study hotspot of industry.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of system of grate furnace waste incineration cooperatively processing sludge,
It is heating and drying using sludge progress of the steam caused by waste incineration waste heat to sewage treatment plant, then a certain degree of through desiccation
Sludge is put into grate furnace, and mixed burning is carried out with rubbish, and in subsequent technique using ripe grate furnace waste incineration,
The technology such as UTILIZATION OF VESIDUAL HEAT IN and fume treatment, the innoxious of Treatment of Sludge, minimizing and recycling are realized, solved dirty in the prior art
The independent desiccation of mud, the problem of burning disposal project construction and operating cost is high.
To reach above-mentioned purpose, the utility model is achieved through the following technical solutions：
A kind of system of grate furnace waste incineration cooperatively processing sludge provided by the utility model, including the stove being sequentially connected
Grate furnace, waste heat boiler, steam turbine, it is characterised in that also including sludge drying machine, go out provided with wet mud entrance, dewatered sludge
Mouth, Waste gas outlet, steam inlet and steam (vapor) outlet, the wet mud entrance are used to import wet mud, and the dewatered sludge goes out
Mouth is connected with grate furnace garbage inlet, and the Waste gas outlet is connected by water washing device with grate furnace intake stack, described
The steam of steam inlet and steam turbine transfers mouth connection, and the steam (vapor) outlet is connected by condenser and waste heat boiler admission port
Connect.
Further, blade mechanism or multigraph press provided with letting through steam entrance and steam (vapor) outlet in the sludge drying machine
Structure, the high-temperature steam circulate in blade mechanism or disk mechanism.
Further, steamed at steam is transferred mouthful by the high temperature saturation exported to steam turbine using bleeding regulating mode
Vapour, and the pressure of high temperature saturated vapor is 0.4~0.6MPa.
Further, the dewatered sludge of dewatered sludge outlet and the grate furnace garbage inlet enter between stove rubbish
Weight ratio use 0.15:1~0.3:1.
Advantageous effects of the present utility model are：
1st, the utility model is the heating and drying sludge of existing steam using garbage incinerating power plant, and by the dirt after desiccation
Mud carries out mixed burning with rubbish, realizes effective processing to sludge, efficiently solves the independent desiccation of sludge and individually burning etc.
The problems such as technical difficulty of processing mode is big, energy resource consumption is big, operation expense is high, is a technical feasibility, economic and practical
Method for sludge treatment.
2nd, the utility model realizes the mixed burning of sludge and rubbish, and organic matter is turned by burning, chemical energy in sludge
Turn to heat energy and realize UTILIZATION OF VESIDUAL HEAT IN, and realize that recycling sludge utilizes while outside power supply or heat supply.
3rd, the utility model realizes the high temperature incineration of sludge, and the poisonous and harmful substance in sludge has obtained effective processing,
And the poisonous and harmful substance evaporated in mud drying process also passes through washing process or enters burning disposal in stove, so that dirty
Mud realizes harmless treatment.
4th, the utility model realizes the drying and incineration of sludge, the reciprocating motion of grate furnace, it is possible to achieve to rubbish and
Effective stirring of sludge, be advantageous to abundant burning and the after-flame of sludge combustible component, reducing sludge volume positive effect, while sludge and pass through
Residue after burning is blended in garbage slag, and the construction timber such as be also used as paving the way, be non-burning brick, sludge realize volume reduction and
Recycling.
Other advantages, target and feature of the present utility model will be explained in the following description to a certain extent
State, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or
Person can be instructed from practice of the present utility model.Target of the present utility model and other advantages can be said by following
Bright book is realized and obtained.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing to this practicality
It is new to be described in further detail, wherein：
Fig. 1 is process schematic representation of the present utility model.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail；It is it should be appreciated that it is preferred that real
Example is applied only for illustrating the utility model, rather than in order to limit the scope of protection of the utility model.
As shown in figure 1, the reference in Figure of description includes：Grate furnace 1, garbage inlet 101, intake stack
102nd, waste heat boiler 2, admission port 201, steam turbine 3, steam are transferred mouth 301, generator 4, sludge drying machine 5, wet mud and entered
Mouth 501, dewatered sludge outlet 502, steam inlet 503, steam (vapor) outlet 504, Waste gas outlet 505, water washing device 6, condenser
7th, wet mud 8.
A kind of system of grate furnace waste incineration cooperatively processing sludge provided by the utility model, including the stove being sequentially connected
Grate furnace 1, waste heat boiler 2, steam turbine 3 and generator 4, in addition to sludge drying machine 5, it which is provided with wet mud entrance 501, do
Change sludge outlet 502, Waste gas outlet 505, steam inlet 503 and steam (vapor) outlet 504, wet mud entrance 501, which is used to import, to be come
Moisture content to sewage treatment plant is 70~90% wet muds 8, and dewatered sludge outlet 502 connects with the garbage inlet 101 of grate furnace 1
Connect, Waste gas outlet 505 is connected by water washing device 6 with the intake stack 102 of grate furnace 1, steam inlet 503 and steam turbine 3
Steam transfer mouth 301 and connect, steam (vapor) outlet 504 is connected by condenser 7 with the admission port 201 of waste heat boiler 2, and the sludge is done
Blade mechanism or disk mechanism provided with letting through steam entrance 503 and steam (vapor) outlet 504 in change machine 5, the high-temperature steam is in oar
Circulated in leaf mechanism or disk mechanism, sludge is delivered heat to by its housing, realize the desiccation that exchanged heat to the indirect type of sludge.In steam
Transfer at mouth 301 by the high temperature saturated vapor exported to steam turbine 3 using bleeding regulating mode, and high temperature saturated vapor
Pressure is 0.4~0.6MPa.Dewatered sludge and the garbage inlet 101 of grate furnace 1 of dewatered sludge outlet 502 enter stove rubbish it
Between weight ratio use 0.15:1~0.3:1.It is dry through exchanging heat to control to adjust the flow of high-temperature steam and the feeding coal of wet mud 8
The moisture content of sludge is 40~60% after change.
Specifically, waste incineration produces the steam that a large amount of heat smokes produce high temperature by waste heat boiler 2 in grate furnace 1, then
Done work into steam turbine and drive generator 4 to generate electricity, and Steam Turbine is transferred mouth 301 from steam using bleeding regulating mode and exported
0.6MPa high temperature saturated vapors, and the high temperature saturated vapor is led in the equipment of sludge drying machine 5 by utilidor, the sludge
Using propeller blade formula structure is set in outer chamber, its high temperature saturated vapor circulates desiccation machine 5 in rotary shaft and helical blade,
The wet mud 8 of moisture content 80% is squeezed into the cavity of the sludge drying machine 5 by pipeline by pump, and with the rotation of helical blade
Turn constantly to move forward, high temperature saturated vapor gradually transfers heat to the wet mud 8 in outside by the heat exchange of blade surface formula, wet
Desiccation is done step-by-step in the constantly evaporation of the moisture of sludge 8.Meanwhile control is passed through the stream of the high temperature saturated vapor of the equipment of sludge drying machine 5
Amount and adjustment are passed through the feeding coal of the wet mud 8 of the equipment of sludge drying machine 5, to ensure that the moisture content of sludge after desiccation is left for 45%
The right side, and the sludge after desiccation is transported in feed platform sludge header (not shown) by equipments such as belt, bucket elevators, then pass through
Distributor (not shown) is laterally uniform from the front end of grate furnace 1 (feed platform and the cohesive position of grate furnace 1) top dewatered sludge
Multiple feed inlet add, the dewatered sludge dropped in the rubbish on dryer section fire grate, and is realized and mixed with rubbish.The distributor
The addition and adding speed of controllable dewatered sludge, and it is 25% to control into the mass ratio of stove sludge and rubbish, and realize
The even feeding of sludge discontinuity.
It will be appreciated by those skilled in the art that the air feed of the grate furnace, burning, UTILIZATION OF VESIDUAL HEAT IN, steam turbine generate electricity and
The relevant parameter of the techniques such as gas cleaning and operation make corresponding adjustment according to combustion case and operating condition.In addition, wet mud
The overall processes such as conveying, desiccation and the escaping gas processing entered after factory are carried out using sealing means, it is ensured that foul smell of sludge etc.
Pollutant is not outer to be arranged, environmental protection.
In the equipment of sludge drying machine 5, sludge is not directly contacted with wet mud 8 with high temperature saturated vapor, is adopted in the present embodiment
With surface-type heat exchange principle, moisture evaporation and desiccation is done step-by-step by absorbing the heat of steam in sludge.Meanwhile sludge is exchanging heat
The mixed gases containing a large amount of vapor are volatilized in drying process, the gas is waste gas, has stink and contains pollutant, can
Dissolvant type washing process is carried out to the waste gas, the liquid pollutant after processing can enter at the percolation liquid treating system of waste incineration
Reason, the insoluble gas after processing are removing vapor and sour gas etc., waste incineration combustion air system are imported into by pipeline
The air inlet pipeline of system, mixed with air after being introduced and heated by blower fan as Secondary Air into dirty by high-temp combustion realization in stove
Contaminate the decomposition of thing.
The steam after heat exchange in the present embodiment is introduced into condenser 7 through steam (vapor) outlet 504 is condensed into water, then defeated with pump
Deliver to and converge with the condensate system of waste incineration and generating electricity, recycled as boiler feedwater.
The steam discharge of steam turbine 3 in the present embodiment is connected with condenser 7, more than the recirculated water of condenser of power plant 7
Heat preheats to the wet mud 8.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should
Cover among right of the present utility model.
Claims (4)
1. a kind of system of grate furnace waste incineration cooperatively processing sludge, including grate furnace, waste heat boiler, the steam being sequentially connected
Turbine, it is characterised in that also including sludge drying machine, provided with wet mud entrance, dewatered sludge outlet, Waste gas outlet, steam
Entrance and steam (vapor) outlet, the wet mud entrance are used to import wet mud, the dewatered sludge outlet and grate furnace garbage feeding
Mouth connection, the Waste gas outlet are connected by water washing device with grate furnace intake stack, the steam inlet and steam turbine
Steam transfer mouth connection, the steam (vapor) outlet is connected by condenser with waste heat boiler admission port.
2. the system of grate furnace waste incineration cooperatively processing sludge according to claim 1, it is characterised in that the sludge
Blade mechanism or disk mechanism provided with letting through steam entrance and steam (vapor) outlet in desiccation machine, steam is in blade mechanism or multigraph press
Circulated in structure.
3. the system of grate furnace waste incineration cooperatively processing sludge according to claim 1, it is characterised in that taken out in steam
Adjust by the high temperature saturated vapor for using bleeding regulating mode to export steam turbine at mouth, and the pressure of high temperature saturated vapor is
0.4~0.6MPa.
4. the system of grate furnace waste incineration cooperatively processing sludge according to claim 1, it is characterised in that the desiccation
The weight ratio entered between stove rubbish of the dewatered sludge of sludge outlet and the grate furnace garbage inlet uses 0.15:1~
0.3:1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720563046.3U CN206817474U (en) | 2017-05-19 | 2017-05-19 | A kind of system of grate furnace waste incineration cooperatively processing sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720563046.3U CN206817474U (en) | 2017-05-19 | 2017-05-19 | A kind of system of grate furnace waste incineration cooperatively processing sludge |
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| Publication Number | Publication Date |
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| CN206817474U true CN206817474U (en) | 2017-12-29 |
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ID=60756978
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| CN201720563046.3U Active CN206817474U (en) | 2017-05-19 | 2017-05-19 | A kind of system of grate furnace waste incineration cooperatively processing sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068013A (en) * | 2019-05-29 | 2019-07-30 | 上海环境工程设计研究院有限公司 | A kind of deeply de- anhydration and incineration electricity generation system of sludge |
| CN111847833A (en) * | 2020-07-20 | 2020-10-30 | 浙江大学 | Garbage incineration and sludge drying cooperative treatment system and method |
-
2017
- 2017-05-19 CN CN201720563046.3U patent/CN206817474U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068013A (en) * | 2019-05-29 | 2019-07-30 | 上海环境工程设计研究院有限公司 | A kind of deeply de- anhydration and incineration electricity generation system of sludge |
| CN110068013B (en) * | 2019-05-29 | 2024-03-08 | 上海环境工程设计研究院有限公司 | Sludge deep-dewatering drying incineration power generation system |
| CN111847833A (en) * | 2020-07-20 | 2020-10-30 | 浙江大学 | Garbage incineration and sludge drying cooperative treatment system and method |
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