CN2821405Y

CN2821405Y - Smoke staying and dicomposing device for incinerator

Info

Publication number: CN2821405Y
Application number: CN 200520114426
Authority: CN
Inventors: 吴桐
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-27
Filing date: 2005-07-27
Publication date: 2006-09-27
Anticipated expiration: 2015-07-27

Abstract

The utility model relates to a smoke staying and decomposing device for an incinerator, which comprises a primary burning chamber, a secondary burning chamber and a tertiary burning chamber, wherein a heat storing ball body is arranged in the tertiary burning chamber, a horizontal axis is penetrated through the center of the heat storing ball body, and both ends of the horizontal axis are arranged on the front side wall and the back side wall of an incinerator chamber, and a bearing is arranged between the horizontal axis and the heat storing ball body; a hot gas inlet, a fan port, a draught fan port and a tail gas outlet are arranged on the inner wall of the incinerator, the hot gas inlet is positioned on the lower end of the incinerator chamber, and the fan port and the draught fan port are positioned on both side walls of the incinerator chamber and are oppositely arranged; the hot gas inlet, the fan port and the draught fan port are arranged along a tangential direction of the heat storing ball body, and the tail gas outlet is positioned on the top part of the incinerator chamber opposite to the heat storing ball body; the hot gas inlet is connected with a gas discharging port of the secondary burning chamber, and the draught fan port is connected with a gas supplying pipe of the primary burning chamber. The utility model can prolong stay time of the smoke in the incinerator, ensure complete combustion of the incineration object, prevent dioxin from generating and stop secondary pollution.

Description

Incinerator smoke stops decomposer

Technical field

The utility model relates to a kind of incinerator, relates in particular to a kind of incinerator smoke and stops decomposer.

Background technology

Along with being on the increase and the raising day by day of living standards of the people of expanding economy, population, the generation of municipal refuse also day by day increases.In the world today, a large amount of rubbish has become long-standing pollution sources in the city.To dealing with improperly of rubbish, may cause serious atmosphere pollution, water to pollute and soil pollution, and will take a large amount of soils.The matters of aggravation at middle 1990s, slippage loosening at the rubbish heap massif that Spain takes place and severe contamination beach is the once warning that the mankind are sent.We can say that rubbish has become serious day by day problem to the pollution of environment.Waste incineration is one of effective way of present solid waste processing.

The incinerator for medical garbage technology that China develops has voluntarily obtained development more fully, and has developed into the matured product of seriation, standardization, regularization.In addition, the prospect of the good garbage disposal industry of some enterprises of China, the cheap incineration plant system of numerous and confused development.Through development in a few years, its product and technology develop into chain-type mobile grate incinerator by the fixed grate incinerator, and some of them are being developed reciprocating type incinerator.But above-mentioned incinerator only is main target with the burning, and the processing of flue gas and energy recovery technology are relatively backward, and automaticity is lower, very easily causes secondary pollution, thereby can't satisfy innoxious requirement fully.

The utility model content

The purpose of this utility model is at the problems referred to above, provide a kind of simple in structure, the generation of bioxin is avoided in the time of staying, the assurance incinerated matter thorough completing combustion of energy prolong smoke in incinerator, and the incinerator smoke of having stopped secondary pollution stops decomposer.

For achieving the above object, the technical solution of the utility model is: a kind of incinerator smoke stops decomposer, comprise a combustion chamber, dual firing chamber, three combustion chambers, it is characterized in that: at the indoor accumulation of heat spheroid that is provided with of described three combustions, run through a trunnion axis in the accumulation of heat ball centre, the two ends of this trunnion axis are installed on burner hearth front and back sidewall, are provided with bearing between trunnion axis and accumulation of heat spheroid; On the stove inwall, also be provided with hot-wind inlet, pressure fan mouth, air-introduced machine mouth and tail gas outlet, hot-wind inlet is positioned at the burner hearth lower end, pressure fan mouth and air-introduced machine mouth are positioned at hearth biside wall and are oppositely arranged, and the three all is provided with along described accumulation of heat spheroid tangential direction, and the tail gas outlet is positioned at the position of roof of the furnace facing to described accumulation of heat spheroid; Described hot-wind inlet links to each other with the dual firing chamber exhaust outlet, and an air-introduced machine mouth and a described combustion chamber ajutage link to each other.

Described heat-storing sphere body is positioned at position, burner hearth middle and upper part and is partial to burner hearth one side, and the hot-wind inlet position is at the burner hearth opposite side.

The utlity model has following advantage:

1. owing in three combustion chamber burner hearths, be provided with the accumulation of heat spheroid, enter three combustion chambers from the hot blast of dual firing chamber's output through hot-wind inlet, heating accumulation of heat spheroid, fire the ajutage of chamber and after the heating of accumulation of heat spheroid, be transported to one from the air-introduced machine mouth from the new wind that the pressure fan mouth is imported, play heating and combustion-supporting effect, thereby the generation of bioxin is avoided in the time of staying, the assurance incinerated matter thorough completing combustion of prolong smoke in incinerator, stop secondary pollution, and improved the service efficiency of heat energy.

2. the accumulation of heat spheroid can make the new wind of dual firing chamber's input hot blast and the input of pressure fan mouth mix more evenly, and can drive the rotation of accumulation of heat spheroid by heat air delivery and new wind along the hot blast import and the pressure fan mouth of accumulation of heat spheroid tangential direction setting, increase the contact area of hot blast and spheroid and new wind and spheroid, make heat exchanger effectiveness be improved.

3. the accumulation of heat spheroid adopts bearing-type to be connected with trunnion axis, and the rotational resistance of spheroid is minimum.

4. the stratosphere of accumulation of heat spheroid burner hearth middle and upper part and deflection burner hearth one side are convenient to the accumulation of heat of accumulation of heat spheroid and the gas flow resistance is also littler.

Description of drawings

Fig. 1 is the utility model three combustion incinerator process charts.

Fig. 2 is the utility model three combustion chamber cross-sectional view.

Fig. 3 is the assembly structure schematic diagram of accumulation of heat spheroid and trunnion axis among Fig. 2.

Among the figure

1. three combustion chamber 2. accumulation of heat spheroids, 3. trunnion axis, 4. burner hearth sidewalls, 5. bearings, 6. hot-wind inlets, 7. pressure fan mouths, 8. air-introduced machine mouths, 9. tail gas outlets

The specific embodiment

Fig. 1 is the utility model three combustion incinerator process charts.As shown in Figure 1, the utility model patent adopts the New Regenerative high-temperature residual heat to reclaim and the air preheat technology, has increased by the three combustion chambers that have the heat accumulating type high temperature exhaust-heat recovery unit on the dual firing chamber basis.Adopt unique design technology in the three combustion chamber burner hearths, in position increase by a rotation accumulation of heat spheroid, 850 ℃～1100 ℃ high-temperature flue gas that come from dual firing chamber fire the chamber oxygen-enriched combustings three like this, and under the effect of air-introduced machine, continue to purge the accumulation of heat spheroid, the spheroid temperature is gone up rapidly to 1100 ℃～1300 ℃, stores a large amount of heat energy, and we increase pressure fan in three combustion appropriate locations, chamber and send into new wind, new wind is swept heat storage and is absorbed a large amount of heat energy, and the indoor temperature of three combustions is remained at about 650 ℃.Simultaneously, new wind is heated to form 550 ℃～650 ℃ high temperature air, and high temperature air can make the indoor solid waste of a combustion realize the pyrolysis under the high temperature as the air-supply and the pyrolysis medium of a combustion chamber.Owing to improved the internal structure of three combustion chambers, realized the high-temperature residual heat recovery, and prolonged the time of staying of flue gas in three combustion chamber burner hearths that air preheat can make incinerated matter carry out high temperature pyrolysis in a combustion chamber.Can significantly reduce the energy consumption of a combustion chamber combustion-supporting system like this, thereby reduce operating cost greatly.

This patent technological process is: rubbish is stored in the rubbish negative pressure storage pit after collecting, admittedly the waste liquid that produces in the useless negative pressure cabin enters waste liquid tank to spray in the rotary kiln through atomising device after collecting and burn, the biogas of generation and other gas are sent in the dual firing chamber and are handled.Solid waste enters automatic garbage sorting system, and under the computer Automatic Control, rubbish is divided into three classes: the rubbish of the suitable burning disposal of high heating value, the waste product of recyclable utilization and building waste.

Enter automatic feeder after the rubbish of suitable burning disposal is sorted out and be transferred to a combustion chamber, one fires indoor temperature between 650 ℃-800 ℃, realizes oxygen debt roasting in kiln.Burning is not abundant, just contain a large amount of combustibles that does not all burn at the flue gas that forms like this, flue gas enters dual firing chamber by exhaust gases passes, further fully burn, the temperature of dual firing chamber is between 850 ℃-1100 ℃, second-time burning can reach the purpose of resolving harmful gas, reduces discharge of harmful gases.Difference according to treated substance, harmful components are many, not labile flue gas material enters three combustion chambers and carries out the burning of oxygen enrichment cracking more fully completely, combustible in the flue gas is thoroughly burnt, not labile pernicious gas also at high temperature is cracked into gases such as fine solid particle, carbon compound, and PCDF and PCDD (bioxin) are destroyed fully.Flue gas after the processing enters exhaust treatment system and handles.

Fig. 2 is the utility model three combustion chamber cross-sectional view.Fig. 3 is the assembly structure schematic diagram of accumulation of heat spheroid and trunnion axis among Fig. 2.As Fig. 2, shown in Figure 3, the utility model incinerator smoke stops decomposer, comprise a combustion chamber, dual firing chamber, three combustion chambers 1, in described three combustion chambers 1, be provided with accumulation of heat spheroid 2, run through a trunnion axis 3 at accumulation of heat spheroid 2 centers, the two ends of this trunnion axis 3 are installed on burner hearth front and back sidewall 4, are provided with bearing 5 between trunnion axis 3 and accumulation of heat spheroid 2; On the stove inwall, also be provided with hot-wind inlet 6, pressure fan mouth 7, air-introduced machine mouth 8 and tail gas outlet 9, hot-wind inlet 6 is positioned at the burner hearth lower end, pressure fan mouth 7 and air-introduced machine mouth 8 are positioned at hearth biside wall and are oppositely arranged, and the three is all along described accumulation of heat spheroid 2 tangential direction settings, and tail gas outlet 9 is positioned at the position of roof of the furnace facing to described accumulation of heat spheroid 2; Described hot-wind inlet 6 links to each other with the dual firing chamber exhaust outlet, and an air-introduced machine mouth 8 and a described combustion chamber ajutage link to each other.Described accumulation of heat spheroid 2 is positioned at position, burner hearth middle and upper part and is partial to burner hearth one side, and hot-wind inlet 6 positions are at the burner hearth opposite side.

On the indoor rotation accumulation of heat spheroid 2 of three combustions.Spheroid adopts the special hollow fire-resistant light material with good heat-transfer effect, size according to three combustion chamber burner hearth internal diameters, the heat-storing sphere that design is complementary, the spheroid position is to calculate according to the aerodynamics principle, be fixed on the gas advection district of position, middle and upper part in the burner hearth, deflection body of heater one side helps the rotation of spheroid.By interior thorax trunnion axis (high-temperature flame-proof material) guarantee spheroid not with stove in thorax bump and rub, and avoid irregular running, guarantee that spheroid can be flexibly according to direction initialization and track running.Spheroid adopts bearing-type to be connected with trunnion axis, and the rotational resistance of spheroid is minimum.The new eolian certain angle that hot blast that comes out from dual firing chamber and air blast send is blown into along rotation accumulation of heat spheroid tangential direction, and we control the blast of both direction, make just can promote heat-storing sphere according to certain speed rotation.Play the effect of water conservancy diversion and heat transfer,, most high-temperature flue gas is moved according to the tangent line direction indication by the air-introduced machine of control vent gas treatment part and the pressure fan wind speed of dual firing chamber.So both guarantee the holdup time of flue gas, entered exhaust treatment system after can making flue gas by abundant delay burning disposal again.

Tangentially by the air-introduced machine wireway hot blast to be sent into primary combustion indoor for Shu Chu high-temperature flue gas, preheating and intensification have been realized to a combustion chamber burner hearth, make solid waste realize pyrolysis in that primary combustion is indoor, the hot blast of air-introduced machine is blown into from the burner hearth ajutage of a combustion chamber, bumpy flow in the formation, can play the purpose that stirs and mix to incinerated matter like this, increase the area of thermo-contact, shorten the spontaneous combustion time of material.Like this by effective energy recovery, both save the operating cost of a combustion chamber, improved the thermal efficiency, improved the ashing degree of incineration treatment of garbage again, reduce the operating load of automatic ash discharging gear, burned the processing of in dual firing chamber, burning fully of flue gas that the back produces.

Thereby guarantee that by the flue gas stop method that adopts this three combustion chambers the time of staying of flue gas was greater than 3 seconds.Make the burning of flue gas reciprocation cycle, reduced the operating load of vent gas treatment, improved the internal-combustion structure of a combustion chamber, make that a combustion chamber is abundant to the solid waste pyrolysis, quick heating, sufficient combustion is thorough, ashing degree height.

The utlity model has following features:

(1) adopt the pyrolysis way of three combustion chamber flue gas parking technologies and a combustion chamber not only to guarantee Holdup time 〉=3 of flue gas second, three unique combustion cell structures have effectively solved flue gas at stove A short difficult problem of the time of staying in the thorax, and improved the service efficiency of heat energy, accomplished that solid is useless The resource of gurry burning disposal, minimizing, innoxious.

The pyrolytic technique technology of combustion chambers (2) has greatly reduced because need a large amount of combustion-supporting required The energy consumption of wanting has reduced operating cost.

(3) flue gas reciprocation cycle burning has guaranteed the burning disposal effect, volume reduction ratio height, ash Change successful.

(4) system adopts capable of being combined or processing mode independently, can be according to burning article Characteristics accomplish that the combination of rational system proportioning goes running, have accomplished guaranteeing to burn the same of effect The time, reduced to greatest extent again the operating cost of whole CIU and unit part Load is processed in operation.

(5) three incineration treatment technologies have guaranteed the thorough and incineration that flue gas is processed, and alleviate The load of exhaust treatment system, reduced the vent gas treatment amount. Reduced because of the replacing of tail gas facility Every cost that maintenance brings. Guaranteed that exhaust emissions and other indexs of correlation have reached Europe High standard.

Claims

1. an incinerator smoke stops decomposer, comprise a combustion chamber, dual firing chamber, three combustion chambers, it is characterized in that: at the indoor accumulation of heat spheroid that is provided with of described three combustions, run through a trunnion axis in the accumulation of heat ball centre, the two ends of this trunnion axis are installed on burner hearth front and back sidewall, are provided with bearing between trunnion axis and accumulation of heat spheroid; On the stove inwall, also be provided with hot-wind inlet, pressure fan mouth, air-introduced machine mouth and tail gas outlet, hot-wind inlet is positioned at the burner hearth lower end, pressure fan mouth and air-introduced machine mouth are positioned at hearth biside wall and are oppositely arranged, and the three all is provided with along described accumulation of heat spheroid tangential direction, and the tail gas outlet is positioned at the position of roof of the furnace facing to described accumulation of heat spheroid; Described hot-wind inlet links to each other with the dual firing chamber exhaust outlet, and an air-introduced machine mouth and a described combustion chamber ajutage link to each other.

2. incinerator smoke according to claim 1 stops decomposer, and it is characterized in that: described heat-storing sphere body is positioned at position, burner hearth middle and upper part and is partial to burner hearth one side, and the hot-wind inlet position is at the burner hearth opposite side.