CN106224975B

CN106224975B - Waste incinerator

Info

Publication number: CN106224975B
Application number: CN201610747459.7A
Authority: CN
Inventors: 涂建文; 孔灿辉
Original assignee: Henan Ruixin Machinery Manufacturing Co Ltd
Current assignee: Henan Ruixin Machinery Manufacturing Co Ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2018-06-19
Anticipated expiration: 2036-08-30
Also published as: CN106224975A

Abstract

A kind of waste incinerator, including burning main stove；The burning pair stove being connect with burning main stove flue outlet；The feeding conveyor structure being connect with burning main stove；The main stove of burning includes furnace body, burner hearth in furnace body, the rotating platform being connect with bottom of furnace body, the circular rotating fire grate being connect with rotating platform, the combustor being connect with furnace body, air port will be supplied in extraneous air introducing burner hearth by being connect with furnace body, the oxygen system being connect with furnace body, the tapping mechanism being connect with furnace body, the ash-scraper being connect with furnace body, the main stove flue outlet of burning connected with upper furnace；The pair stove that burns includes secondary furnace body, the first combustion chamber being connect in secondary furnace body with burning main stove flue outlet, the second combustion chamber connected with the top outlet flue of the first combustion chamber, the third combustion chamber connected with the bottom outlet flue of the second combustion chamber, it is connect with the bottom of secondary furnace body, collects the ash discharge mechanism of the first combustion chamber, the second combustion chamber and third combustion chamber lime-ash.

Description

Waste incinerator

Technical field

The present invention relates to technical field of waste incineration, more particularly, to a kind of waste incinerator.

Background technology

With the development of urbanization, the pollution of rubbish has resulted in the influence to living environment, unites because lacking extensively to rubbish The facility of one processing, rural villager are voluntarily burnt away the refuse mostly outdoor, bring the secondary pollution to environment and unexpected fire occurs The hidden danger of calamity, the waste incinerator generally existing used at present in rural area and Small Urban are difficult to clear up, and burning is insufficient, endless Entirely, it causes serious pollution to the environment in combustion process, it is difficult to the problems such as persistently use.

Burning disposal of the rubbish by modernization, volume can generally reduce 80%~90%, while can eliminate various diseases Harmful substance is converted into harmless object by substance, can also realize the utilization of recycling, waste incineration be realize garbage decrement, One of innoxious and recycling treatment main path.

Waste incineration becomes one of main path of current garbage disposal, and the existing waste incineration in China is mostly using mechanical Waste incinerator, for example, CN104613481A discloses a kind of waste incinerator, the waste incinerator provided is in lateral arrangement, It is composed of in the horizontal several mobile units, several mobile units are integrally supported by support device and by same drive Dynamic device is driven.It effectively solves the problems, such as that pusher trolley is stuck, while causes distribution of the house refuse on fire grate more Uniformly, combustion efficiency is improved.

In the prior art, most waste incinerators include feed inlet, feed fire grate, are used for waste incineration in burner hearth Fire grate, positioned at First air air feed system, the Secondary Air air feed system and slag extractor positioned at furnace throat portion for burning fire grate lower part. Burning fire grate is integrally formed the siege for burning away the refuse, and siege is divided into dryer section, burning zone and after-flame section, incinerator along longitudinal direction Row is whole to be divided into multiple burning units along longitudinal direction, usually 5 units, each burning unit by multiple slip fire grate segments, stir Fire grate segment and fixed grate film composition.Rubbish pours into waste incinerator from feed inlet, by the reciprocal impetus for being fed fire grate Rubbish, which enters on the siege in incinerator, to be burned, and is oven-dried in dryer section rubbish, is dehydrated, and rubbish is mainly carried out in burning zone Burning, the rubbish by after-flame section have burnt totally, and remaining clinker enters slag extractor later, is discharged out of the furnace by slag extractor. Wherein First air is sent into from the air compartment for burning fire grate bottom, and Secondary Air is sent into from the furnace throat portion of waste incinerator.Existing rubbish Incinerator（Industrial furnace）, during burning away the refuse, the bad control of ignition point, burning process control is not accurate enough, burning It is insufficient, pernicious gas, such as nitrogen oxides He bioxin etc. are inevitably generated, these pernicious gases are to environment and human body It is very harmful.

MSW heating value is relatively low.Such as part engineering design calorific value is in 1450kcal/kg or so.Large-scale incinerator and with The stove that other fuel are mixed and burned preferably can more fully hereinafter burn house refuse, and operating cost still receives, to ring The secondary pollution in border is smaller.However, because being influenced by the factors such as garbage collection and transport, in plurality of Small Urban and township Village can not handle house refuse using large-scale incinerator, be only capable of handling house refuse using simple waste incinerator.It burns It is insufficient, not exclusively, auxiliary fuel need to be largely used, input and operating cost are higher, it is difficult to lasting to use.For simply burning It burns for stove, in combustion, imperfect combustion easily occurs for the house refuse of low heat value, and a large amount of unburnts are with catching fire Flame and burning gases rise, due in unburned part there are a large amount of bioxin predecessor, so in burning and gas-exhausting The very strong bioxin of toxicity is generated, is discharged into air, in addition, the discharge capacity of other pollutants is also more.Thus exploitation substitutes The same category of device of simple waste incinerator in the prior art has realistic meaning.

Invention content

The defects of in order to overcome the prior art, the present invention provides a kind of incinerator for being used to handle rubbish, existing to solve Waste incinerator is during combustion refuse, because of unburned object and the productions such as insufficient CO of generation too much, hydrocarbon of burning The technical issues of Sheng bioxin.

In order to solve the above technical problem, the present invention provides a kind of waste incinerator, including burning main stove；Chimney intake with The burning pair stove for burning main stove flue connection；The feeding conveyor structure being connect with the feed inlet for burning main stove；It is described It burns main stove and includes furnace body, the burner hearth in the furnace body, the rotating platform being connect with the bottom of furnace body, with the rotation The circular rotating fire grate of platform connection, an at least combustor being connect with the furnace body, being connect with the furnace body will be external empty Gas introduces in the burner hearth and supplies air port, the oxygen system being sent into oxygen in the burner hearth is connect with the furnace body, positioned at institute The tapping mechanism that the side of circular rotating fire grate is connect with the furnace body is stated, is connect with the furnace body, by the circular rotating stove Lime-ash on row scrapes the ash-scraper in the tapping mechanism, the main stove flue of the burning connected with the upper furnace；It is described to burn Burn secondary stove and include secondary furnace body, in the secondary furnace body with first combustion chamber burned main stove flue and connect, with described the Second combustion chamber of the top outlet flue connection of one combustion chamber, the third combustion connected with the bottom outlet flue of second combustion chamber Room is burnt, is connect with the bottom of the secondary furnace body, collects going out for first combustion chamber, the second combustion chamber and third combustion chamber lime-ash Grey mechanism.

As technical solution, waste incinerator provided by the invention is further improved, the feeding conveyor structure includes packet Chain transfer is included, is wrapped in the babinet of the chain transfer periphery, is trapped among the heating room outside the babinet, the heating The main stove end of closely burning of room is connected with the three-barreled outlet flue, and the main stove end of separate burning of the heating room is equipped with cigarette Gas exports, and rubbish can be sent directly into the main stove of burning by the discharge end of the chain transfer, the nearly burning of the babinet Main stove end is connect with described for air port, and the main stove end of separate burning of the babinet is equipped with air intlet.

As being further improved technical solution, waste incinerator provided by the invention, the oxygen system include with it is described Furnace body connects, and oxygen is sent into the oxygen supplying tube in the burner hearth；The oxygen supply manifold being connect with the oxygen supplying tube；It is total with the oxygen supply The source of oxygen of pipe connection；The control valve being arranged on the oxygen supply manifold；The waste incinerator also has to be connect with furnace body, is used In the sensor of temperature in detection burner hearth, the sensor is connected with control valve control.

As being further improved technical solution, waste incinerator provided by the invention, the lower furnace portion for burning main stove For cylinder, top is hemisphere.

As technical solution is further improved, waste incinerator provided by the invention also has and is arranged on the first combustion chamber Chimney intake in or the first indoor sewage atomizer of burning；The sewage supply system being connect with the sewage atomizer System.

As technical solution is further improved, waste incinerator provided by the invention, the main stove of burning is additionally provided with and institute State the manhole door of furnace body connection.

In the absence of conflict, aforementioned improved scheme can be implemented alone or in combination.

Technical solution provided by the invention, setting burn main stove and burn secondary stove, and phase can be designed by burning the volume of main stove To smaller, furnace height can also be designed relatively low, be conducive to burner hearth heat preservation and furnace wall to burning zone radiations heat energy, improve rubbish Catch fire and primary combustion situation；There are a large amount of bioxin predecessor, Yi in unburned part in Refuse Incineration Process The very strong bioxin of toxicity is generated in burning and gas-exhausting, unburnt further burns in the secondary stove of burning, can be greatly lowered The discharge capacity of bioxin.Because the calorific value of rubbish is generally relatively low, and fluctuation is larger, is burned in main stove if excessive cold air enters, The temperature in stove can be reduced, combustion position is made to be difficult to reach normal, and oxygen is passed through into the main stove of burning by oxygen system, it can The inlet of cold air is reduced, and combustion position can be improved rapidly, saving fuel oil consumption, while reduce the outer row of pollutant.

Description of the drawings

Attached drawing is used to provide further understanding of the present invention, and forms the part of the application, but is not formed to this hair Bright improper restriction.In the accompanying drawings：

Fig. 1 is the structure diagram of embodiment waste incinerator；

Fig. 2 is the cross-sectional view of the main stove of burning of embodiment waste incinerator；

Fig. 3 is the main stove substructure schematic diagram of burning of embodiment waste incinerator；

Fig. 4 is the cross-sectional view of the secondary stove of burning of embodiment waste incinerator；

Fig. 5 is A-A of Fig. 4 to structure diagram；

Fig. 6 is the structure diagram of the feeding conveyor structure of embodiment waste incinerator.

Specific embodiment

The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.

Waste incinerator as shown in Figures 1 to 5, including burning main stove 1；Chimney intake burns main 1 flue of stove with described The burning pair stove 2 of connection；The feeding conveyor structure 3 being connect with the feed inlet for burning main stove 1；The main stove 1 of burning includes Furnace body 101, the burner hearth 102 in the furnace body, the rotating platform 103 being connect with 101 bottom of furnace body, with the rotation The circular rotating fire grate 104 that platform 103 connects, at least one combustor 105 being connect with the furnace body 101, with the furnace body Extraneous air is introduced in the burner hearth 102 and supplies air port 106 by 101 connections, is connect with the furnace body 101 described in oxygen is sent into Oxygen system 107 in burner hearth 102, the mucking machine being connect positioned at the side of the circular rotating fire grate 104 with the furnace body 101 Structure 108 connect with the furnace body 101, scrapes the lime-ash on the circular rotating fire grate 104 in the tapping mechanism 108 Ash-scraper 109, the main stove flue of burning connected with 102 top of burner hearth；The pair stove 2 that burns includes secondary furnace body 201, is located at With first combustion chamber 202 burned main stove flue and connect in the pair furnace body 201, the top with first combustion chamber 201 Second combustion chamber 203 of portion's outlet flue connection, the third combustion chamber connected with the bottom outlet flue of second combustion chamber 203 204, it is connect with the bottom of the secondary furnace body 201, collects first combustion chamber 202, the second combustion chamber 203 and third combustion chamber The ash discharge mechanism 205 of 204 lime-ash.

Rubbish is delivered to through feeding conveyor structure 3 and burns in main stove 1, on circular rotating fire grate 104 successively by it is dry, It catches fire, burn, burning the cinder stage, lime-ash is scraped through ash-scraper 109 in tapping mechanism 108, is discharged out of the furnace through tapping mechanism 108.Combustion Flue gas after burning enters the secondary stove 2 of burning, after afterflame in the first combustion chamber 202, the second combustion chamber 203, third combustion chamber 204 It burns, the lime-ash that the first combustion chamber 202, the second combustion chamber 203 and third combustion chamber 204 deposit is fallen into ash discharge mechanism 205, through going out Grey mechanism 205 discharges.

Because the calorific value of rubbish is generally relatively low, and fluctuation is larger, needs the auxiliary combustion by combustor 105 combustion-supporting sometimes, this When, it is burned in main stove 1 if excessive cold air enters, the temperature in stove can be reduced, combustion position is made to be difficult to reach normal.Setting Oxygen system 107 when burning difficult, by being passed through oxygen into the main stove 1 of burning, reduces the inlet of cold air, energy is rapid Improve combustion position, saving fuel oil consumption, while reduce the outer row of pollutant.

In combustion, incomplete combustion easily occurs for the rubbish of low heat value, a large amount of unburnts with flame with And burning gases rise, due in unburned part there are a large amount of bioxin predecessor, so being generated in burning and gas-exhausting The very strong bioxin of toxicity, is discharged into air.It sets and burns secondary stove, the unburned object in flue gas is burning generation in main stove 1 Organic gas, burn away in the first combustion chamber 202, the second combustion chamber 203 and third combustion chamber 204, avoid bioxin Generation.The structure of first combustion chamber 202, the second combustion chamber 203 and third combustion chamber 204, make flue gas formed cross-flow, mutually it Between disturb, burning it is more abundant.

As shown in fig. 6, optionally, waste incinerator provided by the invention, the feeding conveyor structure 3 includes chain Conveyer 301 is wrapped in the babinet 302 of 301 periphery of chain transfer, is trapped among the heating room outside the babinet 302 303, main 1 end of stove of closely burning of the heating room is connected with the outlet flue of the third combustion chamber 204, described to heat the separate of room It burns main 1 end of stove and is set as exhanst gas outlet, rubbish can be sent directly into the main stove of burning by the discharge end of the chain transfer 301 In 1, main 1 end of stove of closely burning of the babinet 302 is connect with described for air port 106, the main stove 1 of separate burning of the babinet 302 End is equipped with air intlet.

Because the calorific value of rubbish is generally relatively low, water content fluctuation is big, and feeding conveyor structure 3 is equipped with heating room 303, available Fume afterheat evaporates moisture content, moisture content is reduced, so as to be more advantageous to burning to intending entering the rubbish heating for burning main stove 1.Heating Room 303 can also transfer thermal energy to the air in babinet 302, and the air in babinet 302, which enters, to be burned in main stove 1 so that is entered The air burned in main stove 1 is preheated, so as to improve the combustion position burned in main stove 1.

Optionally, waste incinerator provided by the invention, the oxygen system 107 include connecting with the furnace body 101, will Oxygen is sent into the oxygen supplying tube in the burner hearth 102；The oxygen supply manifold being connect with the oxygen supplying tube；It is connect with the oxygen supply manifold Source of oxygen；The control valve being arranged on the oxygen supply manifold；The waste incinerator also has to be connect with furnace body 101, for examining The sensor of temperature in burner hearth 102 is surveyed, the sensor is connected with control valve control.

The temperature signal of sensor detection passes to control valve, and when detecting temperature less than setting value, control valve is opened, and According to its open amount of the high high adjustment of temperature；Temperature is lower, and open amount is bigger.When detecting temperature higher than setting value, control valve It closes, burns main stove 1 and burnt using air.Enter the air capacity and amount of oxygen in burner hearth 102 by control, burned to control The temperature of incineration firing, makes garbage energy fully burn in main stove 1, reduces the discharge capacity of harmful substance.

Optionally, waste incinerator provided by the invention, 102 lower part of burner hearth for burning main stove 4 are cylinder, top For hemisphere.The stove of such structure is conducive to improve the heat insulation effect for burning main stove, and top is hemisphere, can be revolved to circle 104 direction radiations heat energies are arranged in converter, are conducive to the incineration firing of low heat value.

Optionally, waste incinerator provided by the invention, also have be arranged in the chimney intake of the first combustion chamber 202 or Sewage atomizer 206 in first combustion chamber 202；The sewage supply system being connect with the sewage atomizer 206.

During dumping storage etc., there is a small amount of high strong sewage, intractability is very big, also big to the harm of environment, It is sent in the first combustion chamber 202 through sewage atomizer by sewage supply system, the quilt in high-temperature flue gas of the moisture in sewage Evaporation, and organic matter therein, concentrated after-combustion can reduce the discharge capacity of sewage.

Optionally, waste incinerator provided by the invention, the main stove 1 of burning are additionally provided with what is connect with the furnace body 101 Manhole door 110.In combustion process, manhole door can be used for observing situation in stove, stir rubbish on burning zone etc., and when maintenance is made To overhaul entrance.

Setting burns main stove 1 and burns secondary stove 2, and burning the volume of main stove 1 can be designed relatively small, and furnace height also may be used Be designed relatively low, be conducive to burner hearth heat preservation and furnace wall to burning zone radiations heat energy, improve catching fire and primary combustion shape for rubbish Condition；There are a large amount of bioxin predecessor in unburned part in Refuse Incineration Process, toxicity is easily generated in burning and gas-exhausting Very strong bioxin, unburnt further burn in the secondary stove 2 of burning, and the discharge capacity of bioxin can be greatly lowered.Cause The calorific value of rubbish is generally relatively low, and fluctuation is larger, is burned in main stove 1 if excessive cold air enters, can reduce the temperature in stove, Combustion position is made to be difficult to reach normal.Oxygen is passed through to burning in main stove 1 by oxygen system 107, can reduce cold air into Enter amount, and combustion position can be improved rapidly, saving fuel oil consumption, while reduce the outer row of pollutant.

It is clear that the invention is not restricted to above preferred embodiment, can also limit in the claims in the present invention and specification In spirit, the transformation and improvement of diversified forms are carried out, the technical issues of similary, and technique effect expected from acquirement can be solved, therefore It does not repeat.Those of ordinary skill in the art can from present disclosure directly or all schemes for associating, if Within the spirit that claim limits, protection scope of the present invention is also belonged to.

Claims

1. a kind of waste incinerator, it is characterised in that：Including burning main stove（1）；Chimney intake burns main stove with described（1）Flue The burning pair stove of connection（2）；Main stove is burned with described（1）Feed inlet connection feeding conveyor structure（3）；It is described to burn main stove （1）Including furnace body（101）, the burner hearth in the furnace body（102）, with the furnace body（101）The rotating platform of bottom connection （103）, with the rotating platform（103）The circular rotating fire grate of connection（104）, at least one and the furnace body（101）Connection Combustor（105）, with the furnace body（101）Extraneous air is introduced the burner hearth by connection（102）Interior supplies air port（106）, With the furnace body（101）Oxygen is sent into the burner hearth by connection（102）Interior oxygen system（107）, positioned at the circular rotating Fire grate（104）Side and the furnace body（101）The tapping mechanism of connection（108）, with the furnace body（101）It connects, by described in Circular rotating fire grate（104）On lime-ash scrape the tapping mechanism（108）Interior ash-scraper（109）, with the burner hearth（102） The main stove flue of burning of top connection；It is described to burn secondary stove（2）Including secondary furnace body（201）, positioned at the secondary furnace body（201）It is interior with First combustion chamber for burning main stove flue connection（202）, with first combustion chamber（202）Top outlet flue connection Second combustion chamber（203）, with second combustion chamber（203）The connection of bottom outlet flue third combustion chamber（204）, it is and described Secondary furnace body（201）Bottom connection, collect first combustion chamber（202）, the second combustion chamber（203）With third combustion chamber （204）The ash discharge mechanism of lime-ash（205）；The feeding conveyor structure（3）Including chain transfer（301）, it is wrapped in the chain Conveyer（301）The babinet of periphery（302）, it is trapped among the babinet（302）External heating room（303）, the heating room Closely burn main stove（1）End and the third combustion chamber（204）Outlet flue connection, it is described heating room the main stove of separate burning（1） End is equipped with exhanst gas outlet, the chain transfer（301）Discharge end rubbish can be sent directly into and described burn main stove（1）It is interior, The babinet（302）The main stove of closely burning（1）End supplies air port with described（106）Connection, the babinet（302）Separate burning master Stove（1）End is equipped with air intlet.

2. waste incinerator according to claim 1, it is characterised in that：The oxygen system（107）Including with the stove Body（101）Connection, send oxygen into the burner hearth（102）Interior oxygen supplying tube；The oxygen supply manifold being connect with the oxygen supplying tube；With institute State the source of oxygen of oxygen supply manifold connections；The control valve being arranged on the oxygen supply manifold；The waste incinerator also has and stove Body（101）Connection, for detecting burner hearth（102）The sensor of interior temperature, the sensor are connected with control valve control.

3. waste incinerator according to claim 1, it is characterised in that：It is described to burn main stove（1）Burner hearth（102）Lower part For cylinder, top is hemisphere.

4. waste incinerator according to claim 1, it is characterised in that：Also have and be arranged on the first combustion chamber（202）'s In chimney intake or the first combustion chamber（202）Interior sewage atomizer（206）；With the sewage atomizer（206）Connection Sewage supply system.

5. waste incinerator according to claim 1, it is characterised in that：It is described to burn main stove（1）It is additionally provided with and the stove Body（101）The manhole door of connection（110）.