CN1155928A - Garbage incinerating system - Google Patents

Garbage incinerating system Download PDF

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Publication number
CN1155928A
CN1155928A CN 96190600 CN96190600A CN1155928A CN 1155928 A CN1155928 A CN 1155928A CN 96190600 CN96190600 CN 96190600 CN 96190600 A CN96190600 A CN 96190600A CN 1155928 A CN1155928 A CN 1155928A
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China
Prior art keywords
thing
broken
burning
broken thing
feedway
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Pending
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CN 96190600
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Chinese (zh)
Inventor
冲上升
关口善利
佐佐木邦夫
下谷英雄
寺岛正春
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Hitachi Zosen Corp
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Hitachi Zosen Corp
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Application filed by Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to CN 96190600 priority Critical patent/CN1155928A/en
Publication of CN1155928A publication Critical patent/CN1155928A/en
Pending legal-status Critical Current

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Abstract

A garbage incinerating system comprises a pretreatment apparatus (1) and an incineration fusing apparatus (2). The incineration fusing apparatus (2) includes an incineration chamber (3) and a fusing chamber (5) that are integrally formed with a partition (7) therebetween so as to enable continuously transferring unburnt remanants. Particles pulverized in the pretreatment apparatus (1) are fed as a fuel to a powder burner (4) for fusion in the fusing chamber (5). Accordingly, a heat source for fusion is obtained from garbage, and unburnt remanants in a non-cooled condition directly from the incineration chamber (3) is heated and fused, whereby it is possible to efficiently treat garbage at low cost.

Description

Garbage incinerating system
Invention field
The present invention relates to carry out waste incineration continuously and make the garbage incinerating system that burns the incineration residue fusing that produces.
Background of invention
In the past, the incinerator as carrying out castoff burning and the incineration residues such as burning ash that produced by burning of fusing continuously for example had longitudinal type to move pool furnace.This longitudinal type moves pool furnace, is to make discarded object in the burning of fluidized bed bottom from top input discarded object at underfeed oxidant (air or oxygen-enriched air), burns heat by it residue heating is dissolved.
Yet, above-mentioned longitudinal type moves in the pool furnace, discarded object and oxidant are mobile in opposite directions, thermal decomposition gas and waste gas by generation of waste materials flow out at downstream side together, therefore the temperature of the melter of stove bottom is low, only depend on the heat that makes waste combustion can not make the residue fusion, thereby drop into coke as combustion adjuvant, utilize the heat that obtains by this coke to melt residue so that ventilation effect to be provided.Therefore, use coke, thereby have the high problem of processing cost as precious resource.
Disclosure of an invention
The object of the present invention is to provide and a kind ofly can handle discarded object with high efficiency and but can reduce the garbage incinerating system that burns cost.
In order to reach this purpose, the present invention's garbage incinerating system is characterized in that, it by the pre-processing device of pre-treatment discarded object and, the discarded object that pre-processing device was handled adds the burning facility composition that its residue is carried out continuously after the thermal incineration melt process; Above-mentioned pre-processing device comprise the smashing waste thing the coarse crushing machine and, the coarse crushing thing separator that light broken thing of will be mainly from the coarse crushing thing that the coarse crushing crusher machine is crossed being made up of combustible and the broken thing of weight that is rich in incombustible make a distinction with, from heavy broken thing, separate and remove the metal species that can reuse resource regenerant separator and, the further broken slimer of light broken thing that will discharge by the coarse crushing separator; Above-mentioned burning fusion apparatus comprises, to the Burning Room that added thermal incineration by incinerated matter and, become whole formation thereby the incineration residue that generates in the Burning Room can be transferred continuously from Burning Room with this Burning Room, and have melting burner melter and, to import by all or part of fine crushing thing that above-mentioned fine crushing machine is pulverized in the melting burner of above-mentioned melter the molten fuel feedway and, broken thing of weight that will sort out by above-mentioned resource regenerant separator and the broken thing feedway that imports above-mentioned Burning Room by the remaining fine crushing thing that the fine crushing machine is pulverized.
In the pre-processing device of above-mentioned formation, discarded object is after coarse crushing in the coarse crushing machine, the coarse crushing thing is sent to coarse crushing thing separator and resource regenerant separator, by the coarse crushing separator coarse crushing thing is divided into mainly by combustible light broken thing of forming and the broken thing of weight that is rich in incombustible.Then, heavy broken thing is sent to resource regenerant separator, and after selecting to remove the metal species that can reuse, heavily the sorting thing is delivered to the Burning Room that burns fusion apparatus by broken thing feedway.Light broken thing delivers in the fine crushing machine that further fine powder is broken, and all or in its a part of melting burner of delivering to melter by the molten fuel feedway, remaining delivers to the Burning Room burning of burning by broken thing feedway.In Burning Room, heavy broken thing and remaining fine crushing thing are heated burning, and then incineration residue is delivered to melter continuously from Burning Room.In melter, utilize all or part of melting burner that acts as a fuel to carry out heating and melting then, seek to subtract appearanceization and innoxious the fine crushing thing.
According to above-mentioned formation, therefore the material of process fine crushing can reduce operating cost widely as the fuel of melting burner when use was carried out pre-treatment to discarded object.And, owing to be the formation of integral form, can continuously incineration residue be transplanted on melter from incinerator, unlike separate type constitutes, after the incineration residue cooling, heat again, so heat-energy losses is few, can move expeditiously.And Burning Room and melter are that integral form ground constitutes, and therefore can make armamentarium compacter.
Except that above-mentioned formation, also be provided with by the grading plant of incinerated matter in the discharge side of fine crushing machine, the broken thing of the particulate of this grading plant is discharged side when being connected with the molten fuel feedway, and the broken thing discharge of coarse grain side is connected with broken thing feedway.Utilize this grading plant, can only the broken thing of the particulate that branches away be acted as a fuel and stably deliver in the melting burner, therefore can stablize the burning of carrying out melting burner effectively.
Except that above-mentioned formation, also be provided with the oxygen-enriched air feedway and supply with the combustion air of oxygen-enriched air as melting burner.Owing to use oxygen-enriched air as combustion air in melting burner, so the crushed material of lower calorific value and the space combustion of pulverizing the bigger crushed material of area become possibility, can seek the stable of the high temperatureization of burning and flame, and the raising of combustion rate.
Except that above-mentioned formation, the fire grate of the Burning Room of burning fusion apparatus and the siege of melter dip down and tiltedly extend downstream.Therefore, can under the state that the incineration residue temperature is reduced, deliver to melter, but also can utilize the gas preheating incineration residue of melting burner, can burn efficiently and fusion.
The accompanying drawing simple declaration
Fig. 1 is the pie graph as the garbage incinerating system of one embodiment of the invention.
The explanation of embodiment
Among Fig. 1, the 1st, the pre-processing device of pre-treatment discarded object, the 2nd, the discarded object that pre-processing device 1 was handled carries out the burning fusion apparatus that continuous fusion is handled with its residue after adding thermal incineration.
Above-mentioned burning fusion apparatus 2, become integrally to be provided with to make the broken thing that dropped into by hopper 3a Burning Room 3 He in the enterprising parallel planes burning of fire grate 3b, the melter 5 of powder burner (fluff burner) 4 heating and meltings is used in the incineration residue utilization of being discharged by Burning Room 3 as the fusion of melting burner one example.Then, the liquid slag of fusion in melter 5 drops in the slag cooling chamber 6 and generates granulated slag.And Burning Room 3 and 1 partition wall 7 of melter's 5 usefulness separate their top.And in the bottom of partition wall 7, set continuously from upstream side to the fire grate 3b of the oblique Burning Room 3 of dirty inclination and the siege 5a of melter 5, so that Burning Room 3 and melter 5 are communicated with.The fire grate 3b of above-mentioned Burning Room 3 is drive-type structures, on width alternately the dead grate row that are fixed of configuration and, the movable fire grate row that move back and forth to transfer direction.In the bottom of hopper 3a, be provided with the broken thing propeller system 32 that to deliver to from the broken thing of hopper 3a input on the fire grate 3b.Therefore, utilize above-mentioned fire grate 3b and broken thing propelling movement power and the gravity with propeller system 32, the incineration residue that generates in the Burning Room 3 directly infeeds melter 5 continuously under the state that does not reduce temperature.
When being difficult to that with the propelling movement power of propeller system 32 and gravity incineration residue delivered to melter 5 continuously by means of fire grate 3b and broken thing, shown in imaginary line, between the siege 5a of fire grate 3b and melter 5, also be provided with incineration residue in the formed section with forcing propeller system 31, the forward block 31b that this device has pneumatic linear actuator 31a and moved by this pneumatic linear actuator turnover body.
By the high-temperature combustion gas a of fusion with 4 generations of powder burner, in the heating incineration residue, make and be sent to the incineration residue preheating of Burning Room 3 sides in moving the way, discharge with the waste gas of combustion chamber 3 then, carry out recuperation of heat by boiler with heat exchanger 8 this moment.
Pre-processing device 1 is provided with coarse crushing machine 11 Hes that the discarded object coarse crushing become 50~80mm square, make the coarse crushing of coarse crushing machine 11 fragmentations dry thing drying machine 12 (as required be provided with) and, by wind-force above-mentioned coarse crushing thing is divided into mainly by combustible light broken thing of forming and wind-force specific gravity separator 13 Hes as coarse crushing thing separator one example of being rich in the heavy broken thing of incombustible, resource regenerant separator 14 Hes of metal species such as aluminium that utilizes magnet or gravity from the heavy broken thing that coarse crushing machine 11 and wind-force specific gravity separator 13 discharged, to select to remove to reuse and iron, fine crushing machine 15 He of the further fine crushing of light broken thing that wind-force specific gravity separator 13 is discharged are classified into broken thing (puff [fluff] fuel) of particulate that can be used as the square following size of 5mm that fusion uses with the fuel of powder burner 4 and the grading plant 16 (setting as required) that surpasses its broken thing of coarse grain with the fine crushing thing of fine crushing machine 15 fragmentations.
Then, the broken thing of the particulate of this grading plant 16 is discharged side joint to be had the broken thing of particulate is acted as a fuel by pneumatic conveying to fusion with the molten fuel supply pipe (molten fuel feedway) in the powder burner 4 17 time, and discharging side joint at the broken thing of coarse grain has the coarse grain broken thing supply pipe (broken thing feedway) 18 of discarded object pneumatic conveying in the hopper 3a of Burning Room 3.On the broken thing supply pipe 18 of this coarse grain, as required, also be provided with the circulation pipe that makes the broken thing of coarse grain turn back to grading plant 16.
Can also can directly supply with the hopper 3a of Burning Rooms 3 from fine crushing machine 15 directly from molten fuel supply pipe 17 ' supply fusion powder burner 4 by the fine crushing thing that fine crushing machine 15 is pulverized by the broken thing supply pipe 18 of coarse grain.
Fine crushing machine 15, when having the performance that the fine crushing thing that is broken almost all can be broken into the broken thing of particulate (puff fuel) that can be used as the square following size of 5mm that fusion uses with the fuel of powder burner 4, also can be by molten fuel supply pipe 17 ' whole fine crushing things are supplied with fusions powder burners 4.
Fusion is connected to the combustion air pipe 21 of supplying with combustion air from air feeder 20 with on the powder burner 4.And this combustion air pipe 21 is connected with enrichment air hose 23, will make airborne oxygen improve about 30% enrichment air from oxygen-enriched air generating device 22 from enrichment air hose 23 and supply with fusions with powder burners 4 by combustion air pipe 21.
In the above-described configuration, the discarded object of collection is at first transported to the size that once is ground into 50~80mm square in the pre-processing device 1 by coarse crushing machine 11.Carry out drying by drying machine 12 then, or drying is not just delivered to wind-force specific gravity separator 13, the coarse crushing thing is divided into heavy broken thing and light broken thing.The heavy broken thing that herein branches away or by the broken thing of weight that coarse crushing machine 11 is directly sent is delivered to resource regenerant separator 14 backs and is selected to remove the metal species that can reuse.Then, deliver among the hopper 3a of Burning Room 3 by heavy broken thing supply line (broken thing feedway) 19.
By the light broken thing that wind-force specific gravity separator 13 sorts out, deliver to fine crushing machine 15 and carry out thinner second-time breakage.By classification, the square broken thing of following particulate of 5mm (puff) is delivered to fusion powder burner 4 by molten fuel supply pipe 17 to these fine crushing things in grading plant 16 then.Surpass and drop in the Burning Room 3 after the broken thing of the square coarse grain of 5mm is delivered to hopper 3a by the broken thing supply pipe 18 of coarse grain.
In the absence of grader 16, the fine crushing thing be divided into behind the ormal weight necessary amounts supplied with molten fuel supply pipe 17 ', remainder supply with the broken thing supply pipe 18 of coarse grain '.
When fine crushing thing major part is the square broken thing of following particulate of 5mm (puff), also can be by the molten fuel supply pipe 17 ' fine crushing thing is all delivered to fusion powder burner 4.
Throw into broken thing the Burning Room 3 from hopper 3a, being heated burning and burning, generate and burn the stove residue.Its incineration residue by the propelling movement power and the gravity of fire grate 3b and broken thing usefulness propeller system 32, is directly delivered to the siege 5a of melter 5 from fire grate 3b.Heat the back fusions by fusion with powder burner 4 then.This slag drops into water-cooled in the slag cooling chamber 6, generates granulated slag.At this moment, the burning gases a of melter 5 delivers to fire grate 3b from siege 5a and goes up after the incineration residue preheating, discharges with the waste gas of Burning Room 3, carries out recuperation of heat by boiler with heat exchanger 8.The steam turbine that the steam that is obtained with heat exchanger 8 by boiler is imported into TRT 9 is used for generating.Waste gas then is discharged from by emission-control equipment 10.
Fusion powder burner 4, when the shortage of heat of when starting and powder fuel, supply with in the auxiliary fuels such as the LPG gas that is used to burn or heavy oil, supply with the broken thing (puff) of the square following particulate of 5mm from molten fuel supply pipe 17, burn from combustion air pipe 21 supply combustion airs.Also can from oxygen-enriched air generating device 22 the enrichment air be supplied with fusion powder burner 4 as required.Owing to used this airborne oxygen concentration is improved about 30% burning enrichment air, the particle that has only the square following small pieces of 1mm to use as the fluffy fuel of powder burner before making also can burn about 5mm is square.Therefore, can carry out high-temp combustion and flame stabilization, and then, efficiency of combustion can be improved.Owing to use burning to use the enrichment air, can reduce the exhausted air quantity about 30%, thereby can seek the miniaturization of thermal efficiency raising and waste gas treatment equipment.
According to above-mentioned embodiment, as the fuel of fusion with powder burner 4, use be with discarded object through coarse crushing machine 11 and the broken things (puff) of the fine crushing machine 15 broken particulates of crossing, therefore can reduce operating cost greatly.And, therefore can utilize the propelling movement power of Burning Room 3 sides and deadweight to transfer incineration residue continuously downwards because the fire grate 3b of Burning Room 3 and the siege 5a of melter 5 tilt continuously.Therefore, can as unpack format, need after the incineration residue cooling, not heat again, thereby heat-energy losses is few, and can be with high-efficiency operation.Owing to be, therefore can make the armamentarium densification with the formation of partition wall 7 with the integral form of Burning Room 3 and melter's 5 separations.
In addition, the fine crushing thing of fine crushing machine 15 fragmentations is through grading plant 16, only with the broken thing of the particulate that branches away in the fusion use that acts as a fuel in powder burner 4, so can carry out more stable burning.
And owing in the combustion air of fusion, used oxygen-enriched air with powder fuel device 4, therefore the space combustion of the crushed material that the crushed material of lower calorific value and pulverizing area are bigger becomes possibility, can seek the stable of the high temperatureization of burning and flame, the raising of combustion rate.
In the above-described embodiment, illustrated discarded object added thermal incineration after, its residue " continuously " is carried out the garbage incinerating system of melt process, but said herein " continuously ", comprise the functional performance of directly delivering to siege 5a from fire grate 3b, also comprise simultaneously and needn't as before the furnace charge that in a single day cools off be heated again, but residue is sent into the further instantaneous and typical operation of heating with the condition of high temperature again.

Claims (5)

1, garbage incinerating system is characterized in that, it be by the pre-processing device (1) that discarded object is carried out pre-treatment and, the discarded object that pre-processing device was handled adds after the thermal incineration burning fusion apparatus (2) that its residue is carried out melt process continuously and forms;
Above-mentioned pre-processing device (1) possesses:
With discarded object carry out broken coarse crushing machine (11) and,
With the coarse crushing thing of coarse crushing crusher machine be distinguished into mainly light broken thing of forming by combustible and the broken thing of weight that is rich in incombustible coarse crushing thing separator (13) and,
From heavy broken thing, select to remove the metal species that can reuse resource regenerant separator (14) and,
The fine crushing machine (15) that the light broken thing of coarse crushing separator discharge is further broken;
Above-mentioned burning fusion apparatus (2) possesses:
To incinerated matter add thermal incineration Burning Room (3) and,
With this Burning Room (3) thus become whole form the incineration residue that generates in the Burning Room can be transferred continuously from Burning Room and have melting burner 4 melter (5) and,
All or part of fine crushing thing that above-mentioned fine crushing machine was pulverized import in the melting burner (4) of above-mentioned melter molten fuel feedway (17) and,
The remaining fine crushing thing that broken thing of weight that above-mentioned resource regenerant separator (14) is sorted out and fine crushing machine (15) were pulverized imports the broken thing feedway (18,18 ', 19) of Burning Room (3).
2, the described garbage incinerating system of claim 1 is characterized in that, be provided with by the grading plant of incinerated matter (16) in the discharge side of fine crushing machine,
This grading plant (16) is discharged side at the broken thing of particulate and is connected with molten fuel feedway (17),
Discharging side at the broken thing of coarse grain is connected with broken thing feedway (18).
3, the described garbage incinerating system of claim 1 is characterized in that, also is provided with oxygen-enriched air feedway (22,23), supplies with the oxygen-enriched air as melting burner (4) combustion air.
4, the described garbage incinerating system of claim 2 is characterized in that, also is provided with oxygen-enriched air feedway (22,23), supplies with the oxygen-enriched air as melting burner (4) combustion air.
5, each described garbage incinerating system in the claim 1~4 is characterized in that, in burning fusion apparatus (2), the fire grate (3b) of Burning Room (3) and the siege (5a) of melter (5) dip down and tiltedly extend downstream.
CN 96190600 1995-07-10 1996-07-08 Garbage incinerating system Pending CN1155928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96190600 CN1155928A (en) 1995-07-10 1996-07-08 Garbage incinerating system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP172641/95 1995-07-10
CN 96190600 CN1155928A (en) 1995-07-10 1996-07-08 Garbage incinerating system

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CN1155928A true CN1155928A (en) 1997-07-30

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CN 96190600 Pending CN1155928A (en) 1995-07-10 1996-07-08 Garbage incinerating system

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1294381C (en) * 2003-02-14 2007-01-10 株式会社田熊 Device for supplying garbages to garbage destructor and garbage supplying method
CN104334971A (en) * 2012-03-29 2015-02-04 日立造船株式会社 Combustion driving method in incinerator
CN104334971B (en) * 2012-03-29 2016-11-30 日立造船株式会社 The burning method of operation of incinerator
CN106568086A (en) * 2016-10-27 2017-04-19 上海煜工环保科技有限公司 Vertical flame channel and hot bed-connected type powder material continuous melting furnace
CN109058997A (en) * 2018-06-12 2018-12-21 李标 A kind of smokeless waste incinerator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1294381C (en) * 2003-02-14 2007-01-10 株式会社田熊 Device for supplying garbages to garbage destructor and garbage supplying method
CN104334971A (en) * 2012-03-29 2015-02-04 日立造船株式会社 Combustion driving method in incinerator
CN104334971B (en) * 2012-03-29 2016-11-30 日立造船株式会社 The burning method of operation of incinerator
CN106568086A (en) * 2016-10-27 2017-04-19 上海煜工环保科技有限公司 Vertical flame channel and hot bed-connected type powder material continuous melting furnace
CN109058997A (en) * 2018-06-12 2018-12-21 李标 A kind of smokeless waste incinerator
CN109058997B (en) * 2018-06-12 2019-08-13 李标 A kind of smokeless waste incinerator

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