CN1339671A - Integrated continuous harmful refuse processing system comprising cracking furnace and incinerating furnace - Google Patents

Abstract

High temperature fuel gas produced in the complete combustion inside the secondary furnace is used to heat indirectly the cracking inner tube in the continuous arranged cracking furnace, so that the waste in the vacuumed cracking tube cracked and gasified in the oxygen-free condition without being oxidized to product secondary harmful gas. By cooperating with the other design, the present invention can hot crack harmful waste completely without secondary pollution.

Description

The bazardous waste cracking furnace and incinerating furnace of continous way is handled integration system

The present invention relates to the bazardous waste processing method, refer to that especially a kind of bazardous waste cracking furnace and incinerating furnace of continous way is handled integration system.

At present about the processing mode of Biohazard Waste and harmful cause discarded object progressive for utilizing first and second stove incineration process and utilize the fluidized bed incineration process, even utilize electricity to starch the processing that reaches a high temperature; Wherein electricity is starched owing to the equipment cost height, and is subjected to the influence of the electricity slurry scope of application, though can reach high temperature, handle equably than difficulty, and the too high resource that can not reach again of processing cost reclaims; The fluidized bed incineration process, it can reach the difficult discarded object that mixes with air by handling oil mud, because can not be in thermal cracking under the anoxia condition, and can't completing combustion, cause the destruction clearance of nuisance low excessively, and burning took place simultaneously with thermal cracking when discarded object incinerated, so can't handle bazardous waste clearly, and the generation gas composition that produces harm is more and concentration is also bigger, therefore empty dirty treatment facility and expense are all high, and utilize one, the secondary stove is handled the medical treatment discarded object, because a stove also is that burning takes place simultaneously with thermal cracking, therefore the harmful generation pollution sources after the burning of secondary stove is handled are formed many, and concentration is also big, the problem that causes subsequent treatment to be difficult for.

Therefore, the bazardous waste cracking furnace and incinerating furnace that the purpose of this invention is to provide a kind of continous way is handled integration system, utilizes it can reach the ratio that reduces harmful substance greatly, reduces all the beneficial effects such as pollution level to air.

The object of the present invention is achieved like this: a kind of bazardous waste cracking furnace and incinerating furnace of continous way is handled integration system, it is characterized in that its step comprises:

A) air, fuel oil and the distillation generation gas later of suitable mixed proportion are introduced secondary stove internal combustion and produced hot combustion gas, in for the defeated heating clamber of pipeline, provide thermal source each pyrolysis furnace of parallel connection;

B) bazardous waste in the cracking inner core in a plurality of pyrolysis furnaces can be separately after vacuumizing, make the indirect of its combustion gas of can being heated, and the generation gas that is produced is by also connecting the resource reclaim line of establishing, be conveyed in many group distillation heat exchanger pipelines, condense into liquid fuel and liquid water collection in collection is received groove generating vaporizer in the gas, incoagulable gas then burns by utilizing reclaim line to be conveyed in the secondary stove again;

C) heating clamber of supplying with each pyrolysis furnace is simultaneously implemented the hot combustion gas of indirect, via the discharge pipe that is connected in parallel on each pyrolysis furnace, after the hot combustion gas after utilizing is conveyed into empty dirty treatment facility and handles, is disposed in the atmosphere again;

D) after the cracking of cracking inner core is finished, order is in parallel to be arranged in vavuum pump on the removing pipeline of each cracking inner core, to residue in after generation gas in the cracking inner core attracts out, be earlier through the cooling of cooling heat exchanger, burns by utilizing reclaim line to be conveyed in the secondary stove more again.

Technical characterictic of the present invention also is: each pyrolysis furnace is provided with the cracking inner core in being and divides inside and outside two-layer cracking room and heating clamber, and in cracking room, be provided with the thermal cycle pipeline, again and be attached to the resource reclaim line of each pyrolysis furnace and remove on the branch pipe of pipeline, and all be respectively equipped with recovery valve and scavenging valve, and insert in the cracking room of each cracking inner core; Secondly, have again on each pyrolysis furnace and can connect the branch pipe of secondary stove for defeated pipeline, and be respectively equipped with heating valve, be provided with drain valve with the discharge pipe branch pipe that is connected in parallel in addition, in the heating clamber of the interior interlayer of the hot combustion gas guiding inflow pyrolysis furnace that the secondary stove can be produced, provide heat energy that the cracking inner core is imposed indirect, the hot combustion gas after utilizing causes and does empty dirty the processing in the empty dirty treatment facility, at last, again it is drained in the atmosphere.

On defeated pipeline and resource reclaim line, independently be provided with adjustment control valve and flow control valve more respectively.

Secondary outlet of still place is provided with the controlled temperature control valve that heats the combustion gas output temperature.

The chimney place of the least significant end of empty dirty treatment facility is provided with the exhaust that can measure the composition of discharging gas and concentration and forms and measure monitoring equipment, the data that is measured can be feedback and give the secondary stove, sprays into the fuel oil in the secondary stove and the matter flow rate of air with control.

The operation control step of each cracking is to comprise:

A) close each valve that is connected on the pyrolysis furnace earlier, take out the cracking inner core and pack into behind an amount of discarded object, insert again in the pyrolysis furnace its sealing, scavenging valve is opened, and the startup vavuum pump, will vacuumizing in the cracking inner core, the gas of being released flows into the secondary stove after flowing into and utilizing reclaim line again; When vacuumize finish after, close scavenging valve and open recovery valve, this moment recovery valve be to interconnect with other recovery valves, so the generation gas of cracking can be flowed in the first cracking inner core, till reaching balance by recovery valve;

B) at this moment, open heating valve and drain valve again, the heat combustion flow that secondary stove burning is generated go into the outer heating clamber of pyrolysis furnace and thermal cycle pipeline internally the discarded object in the cracking inner core of layer impose indirect, hot combustion gas after the row heating is flowed out by drain valve, after compiling via discharge pipe, enter scrubbing tower cleaning and filtering harmful substance in addition, wherein liquid harmful substance is then neutralized through the acid-base neutralization groove, and gas then is directed to smoke stack emission through drawing air exhauster thoroughly;

C) and the discarded object in the cracking inner core after indirect, promptly begin to produce thermal cracking and the fusion vaporization, this generates gas and then discharges through recovery valve, and compile and enter through in succession many groups distillations of polyphone heat exchangers by the resource reclaim line, it is a scope of being set its condensation temperature according to the different condensation temperatures of the various gas with various that will reclaim, and can obtain various liquid fuel and aqueous water, separated with oil water separator and recovery respectively, last Device in Gas enters through utilizing reclaim line is more again burnt in the secondary stove again;

D) secondly, after the discarded object cracking of cracking inner core is finished, need close each valve that is connected to pyrolysis furnace earlier, only open scavenging valve, make cracking residual in the cracking inner core generate gas through cooling heat exchanger, again through the attraction of vavuum pump and enter and utilize again in the reclaim line, and burnt in the inflow secondary stove, after a period of time, scavenging valve is closed and opened air valve fresh cold air is entered in the cracking inner core, after being full of, open scavenging valve again and close air valve, after enforcement vacuumizes and finishes once more, just scavenging valve can be closed, the outer heating clamber of pyrolysis furnace is opened, the cracking inner core is taken out, the cracking inner core of new discarded object of will packing into is again put into heating clamber and is implemented thermal cracking, the operation thermal cracking operation of circulation so again and again, and the cracking work flow of other each pyrolysis furnace is all identical.

This shows, for overcoming the shortcoming that above-mentioned various Biohazard Waste commonly used reaches the processing mode of harmful cause discarded object, the present invention is provided with the cracking inner core in each pyrolysis furnace, each pyrolysis furnace is the thermal source that is connected in parallel in the secondary outlet of still simultaneously, and the export pipeline of each cracking inner core is provided with recovery valve, and after being connected in parallel via the resource reclaim line, after heat exchanger in series are connected with many groups of distillations again, the gas tieback is gone into the completing combustion of secondary stove, in addition on the outlet of cracking inner core and be provided with scavenging valve, in order to removing the residual hot pyrolysis gas of inner core, and there is the removing pipeline of cooling heat exchanger and vavuum pump to be connected in parallel on each scavenging valve with another linking, the residual heat cracked gas of removing can be burnt to the gas combustion feeder to the secondary stove through pressurized stream at last.Again in all and be provided with air valve, in order to the hot air temperature of control pyrolysis furnace inlet and remove the cracking residual gas once more at the outlet place of the inlet tube of pyrolysis furnace and cracking inner core.At last, with the toxic emission pipeline the hot combustion gas that pyrolysis furnace exports is guided to scrubbing tower again, after drawing air exhauster and exhaust composition measurement monitoring equipment thoroughly, this gas is entered in the atmosphere after the dirty treatment facility of sky is handled again.Therefore, behind pyrolysis furnace cartridge discarded object, after vacuumizing in advance, close the valve that vacuumizes, open the inner core outlet valve, the pyrolysis furnace inner core is being subjected to after the hot combustion gas of secondary stove imposes indirect, begin to carry out the thermal cracking under the anaerobic state, after so discarded object begins cracking vaporization, enter through recovery valve in the reclaim line of the many groups of distillation heat exchangers that series connection is provided with, and distillation freeze-out liquid fuel and aqueous water, and can't distill the imflammable gas (Device in Gas) that condenses and reclaim, then enter in the secondary stove and burn through the gaseous state air blast, except that can discharging contained heat energy, and behind the high temperature incineration of secondary stove, can reduce the ratio of harmful substance in the hot gas greatly, remove contained harmful substance through the dirty treatment facility of sky again, reach and meet the rules waste gas emission standard, reduce the air-polluting degree.

The present invention is after the cracking inner core is vacuumized in advance on the other hand, and capable again thermal cracking makes bazardous waste thermal cracking fully, and not contacting with air under the condition of (anoxic), can make SO _x, NO _x, CO _x, and the generation of pernicious gas in cracking process of Polychlorinated biphenyls (Poly Chlorinated Diben-jo Dioxin is called for short PCDD) etc. be reduced to level off to zero.

Moreover, the present invention is that the cracking inner core carries out thermal cracking in the hot combustion gas indirect that is subjected to the secondary stove, according to the different characteristic of all gases condensation temperature, distill the gas of different compositions that condenses gradually, and then reclaimed liquid fuel and the harmful pollution sources such as the chloride etc. of different components.At last, distilling remaining cracking gas (being commonly referred to as Device in Gas) still stores heat energy and it is sprayed in the secondary stove burns, because gaseous state is easier to control ignition temperature, reach completing combustion, and can control the time in the secondary stove of being stranded in of the outlet temperature of secondary stove and cracking gas, reach the destruction clearance of higher pernicious gas material, with the effect of the most effective processing bazardous waste.

Again, the present invention is by the be provided with replacement of a traditional stove with a plurality of pyrolysis furnace continous ways, so can be at the different qualities of handled discarded object, and the cracking of doing indivedual different conditions is handled, make the thermal cracking of each pyrolysis furnace reach optimization, the concentration that is combined into other harmful product can be reduced, reducing the load of empty dirty equipment, and high-level emissions quality can be reached.

And the present invention is after thermal cracking is finished, and residues in to be the material of contained not cleavable in the discarded object in the cracking inner core, and as metal, stone, ash, sand and useful carbon black, but the resource recovery is made fireproof building material through technical finesse.

Technical scheme of the present invention and the category that further is suitable for can be by clear learning in following being described in detail.But these detailed narrations and the embodiment that mentioned be only for explanation usefulness because in the various change of being made in the spirit and scope of the present invention with revise for the professional person in the industry, can be from these describe in detail clear learning.

The present invention can be obtained to understand completely by following detailed description and accompanying drawing, the usefulness that these describe in detail and accompanying drawing only explains, and should not limit to the present invention, it is described below:

The accompanying drawing simple declaration:

Fig. 1 is an integration schematic flow sheet of the present invention;

Fig. 2 is a stepwise distillation system specialization schematic diagram of the present invention;

Fig. 3 is the schematic diagram of first group of distillation of the present invention heat exchange effect.

See also shown in Figure 1ly, the present invention receives institutes such as groove, a plurality of oil water separator, cooling heat exchanger, vavuum pump and empty dirty treatment facility by secondary stove, a plurality of pyrolysis furnace, many group distillation heat exchangers, a plurality of collection and forms, wherein:

The secondary stove is equipped with air and fuel flow control system (FFCS) on it, in order to the suitable matter flow rate of control fuel oil and air (

), make it mixed combustion in the proper ratio, and the heat combustion oxygen that the burning back is produced can be earlier through a temperature control valve g _p, it is the temperature that can learn the hot combustion gas that pyrolysis furnace is required as calculated, enters temperature control valve g and adjust _pCold air matter flow ,, via on the branch pipe that is connected in parallel to each pyrolysis furnace 11 for defeated pipeline 1, respectively be provided with the controlled heating valve (g that heats throughput again to change the temperature of hot combustion gas _{H, in}G _{H, in}), be provided with the temperature conditioned air valve (a that can supply with cold air more individually ₁ ⁽¹⁾A ₁ ⁽ⁿ⁾).

A plurality of pyrolysis furnaces, each pyrolysis furnace is to be provided with the cracking inner core in inside and to be separated into two-layer cracking room of inside and outside C2, C1 and heating clamber, and in cracking room, be provided with the thermal cycle pipeline, can reach discarded object indirect rapidly with the cracking inner core, establish a resource reclaim line 2 again, by being respectively equipped with recovery valve (g on each branch pipe 21 _c ⁽¹⁾G _c ⁽ⁿ⁾); Be respectively equipped with scavenging valve (p in addition again ₁ ⁽¹⁾P ₁ ⁽ⁿ⁾) the removing pipeline 3 of each branch pipe 31, be parallel on the branch pipe 21 of each reclaim line 2, on each branch pipe 21, respectively establish one again simultaneously and be provided with air valve (a ₂ ⁽¹⁾A ₂ ⁽ⁿ⁾) branch pipe 32, and above-mentioned removing pipeline 3 is earlier behind series connection cooling heat exchanger and the vavuum pump, is attached to and utilizes reclaim line 5 again, the fuel gas that then is connected to the secondary stove is supplied with on the shower nozzle.

Moreover, the outer C of each pyrolysis furnace ₁Heating clamber be provided with branch pipe 41, respectively establish drain valve (g on the branch pipe 41 again _{H, e} ⁽¹⁾G _{H, e} ⁽ⁿ⁾), and be attached on the empty dirty treatment facility through discharge pipe 4.

Many group distillation heat exchangers, it is the end that is connected in resource reclaim line 2, and every group of distillation interchanger is to be to be connected in series, and on each group distillation heat exchanger, connect again and establish a collection and receive groove, and each collection is received groove and is connected an oil-water separator is set, and make the fuel gas of distillation heat exchanger end secondary stove that arrives of above-mentioned last group supply with on the shower nozzle, and fuel gas supply shower nozzle is provided with the matter flow rate that can calculate its fuel gas that passes through with utilizing reclaim line 5 to be connected again

Empty dirty treatment facility is to include scrubbing tower, the acid-base neutralization groove, drawing air exhauster and exhaust composition measurement monitoring equipment thoroughly forms, scrubbing tower wherein, acid-base neutralization groove and draw air exhauster thoroughly and be empty dirty equipment commonly used at present, only, the measurement monitoring equipment is formed in exhaust, be to be located on the outlet port, can detect the composition of exhaust, so with the data signal feedback in the secondary stove, make the secondary stove adjust ignition temperature, exhaust is controlled at meets optimized low pollution norms.

So, shown in the annexation of above-mentioned each unit, connecing respectively supplying of establishing on each pyrolysis furnace fails pipeline 1, resource reclaim line 2, removes pipeline 3 and discharge pipe 4, because all be in parallel the linking, so, each pyrolysis furnace can both be operated control respectively, and the independent operational scenario of each pyrolysis furnace is as described below.

Close each valve that is connected on the pyrolysis furnace earlier, take out the cracking inner core an amount of waste material of packing into, insert again in the pyrolysis furnace with its sealing, with scavenging valve P ₁Open, and start vavuum pump, will vacuumize in the cracking inner core, after the gas of being released flows into and utilizes reclaim line 5 again, warp

Pipeline flows into the secondary stove.When vacuumize finish after, close scavenging valve p ₁ ⁽¹⁾And open recovery valve g _c ⁽¹⁾, outlet recovery valve g this moment _c ⁽¹⁾Be and other recovery valves (g _c ⁽²⁾G _c ⁽ⁿ⁾Interconnect, so the generation gas of cracking can be by recovery valve g _c ⁽¹⁾Flow in the first cracking inner core, till reaching balance; At this moment, open heating valve g again _{H, in} ⁽¹⁾And drain valve g _{H, e} ⁽¹⁾, the heat combustion flow that secondary stove burning is generated go into pyrolysis furnace outer C1 heating clamber and the internal layer C of thermal cycle pipeline ₂The cracking inner core in discarded object impose indirect, the hot combustion gas after the row heating is by drain valve g _{H, e} ⁽¹⁾Flow out, after compiling via discharge pipe 4, enter in addition cleaning and filtering harmful substance of scrubbing tower, wherein liquid can harmful substance then the neutralization through the acid-base neutralization groove, gas then is directed to smoke stack emission through drawing air exhauster thoroughly; Wherein, be to use prior art to be provided with by scrubbing tower to the empty dirty equipment of chimney.But, the then gas of 24 hours monitoring smoke stack emission of row of measurement monitoring equipment is formed in discharging, and can measure the constituent and the concentration of its emission gases, so can learn the relation of the operating condition of the composition in main harm source and pyrolysis furnace secondary stove, and can confirm the pollution sources composition that utilizes the present invention can reach least concentration.

And the discarded object in the cracking inner core promptly begins to produce thermal cracking and the fusion vaporization after indirect, and this generates gas then through recovery valve g _c ⁽¹⁾Discharge, and by resource reclaim line 2 compile and enter first group the distillation heat exchanger, second group the distillation heat exchanger ... to N group distillation heat exchanger, it is a scope of being set its condensation temperature according to the different condensation temperatures of the various gas with various that will reclaim, and can obtain various liquid fuel and aqueous water, and the purposes of removing steam is to make the distillation back and can't distill the cracked gas (paddy claims Device in Gas) that gets off and can reach completing combustion easilier at the secondary stove; And above-mentioned fluid oil and aqueous water can be separated and reclaimed respectively via oil water separator, and last Device in Gas enters through utilizing reclaim line 5 is more again burnt in the stove for the second time, and the secondary stove can calculate the fuel oil that enters the secondary stove and the matter flow rate of air The ignition temperature of secondary stove is controlled at a pair of harmful air pollutants to be had in the high scope of destroying clearance, and measure the composition and the concentration of discharging gas via the supervision that exhaust form to measure monitoring equipment, the secondary stove is given in this data feedback do and control to adjust ignition temperature the most accurately.

Moreover, can do the thermal cracking and the cracking time of different temperatures to different discarded objects for meeting each pyrolysis furnace, so but establish a supplements cold in the exit of secondary stove and regulate the temperature control valve g of hot gas temperature _p, and can calculate its cold air matter flow rate of replenishing and accurately be controlled at a hot gas temperature OK range in, and other hot combustion gas at each pyrolysis furnace enters on the branch pipe 11, set up respectively and can independently control the adjustment control valve (a that cold air enters ₁ ⁽¹⁾A ₁ ⁽ⁿ⁾), to provide each pyrolysis furnace required different hot gas temperatures.

Secondly, after the discarded object cracking of cracking inner core is finished, need close each valve that is connected to pyrolysis furnace earlier, only open scavenging valve p ₁ ⁽¹⁾, make cracking residual in the cracking inner core generate gas through cooling heat exchanger, enter through the attraction of vavuum pump again and utilize again in the reclaim line 5, and flow into and burnt in the secondary stove, after a period of time, scavenging valve p ₁ ⁽¹⁾Close and open air valve a ₂ ⁽¹⁾Fresh cold air is entered in the cracking inner core, after being full of, open scavenging valve p again ₁ ⁽¹⁾And close air valve a ₂ ⁽¹⁾, after enforcement vacuumizes and finishes once more, just can be with scavenging valve p ₁ ⁽¹⁾Close that (this work flow can be cooled off the cracking inner core, and cracking can not generated gas directly enters in the atmosphere), the outer C1 heating clamber of pyrolysis furnace is opened, the cracking inner core is taken out, the cracking inner core of new discarded object of will packing into is again put into heating clamber and is implemented thermal cracking, the operation thermal cracking operation of circulation so again and again, and the cracking work flow of other each pyrolysis furnaces is all identical.

At last, residue in the material of the not cleavable of cracking inner core, as metal, stone, ash, sand and useful carbon black (this carbon black is that the recyclable resource of working as is used), can utilize curing technology to make fireproof building material, the advantage of the gently impermeable again water of tool material, thermal insulation, high resistance (Resistance) is very good fireproof building material.

The invention theoretical foundation of this integration system is as follows, and the ready-made chemical formula that is provided with harmful cause discarded object is , when cracking under airfree condition its to generate gas mode as follows:

When T (temperature) not simultaneously, each generates gas and forms all different, relatively concentration is also different, but can positively finish complete thermal cracking, can generate that gas is formed and the measurement of concentration obtains best control temperature by cracking, this integration system can be controlled each pyrolysis furnace hot gas inlet temperature, by 300 ℃ to 950 ℃ or higher, looks heating valve and drain valve (g _Hi, g _He) valve heatproof and decide because discarded object can prolong more than 1 hour in the time that the cracking inner core is subjected to thermal cracking, therefore have the enough time can reach complete thermal cracking target.Because recovery valve g at pyrolysis furnace _cAnd in the resource reclaim line 2, even Polychlorinated biphenyls all cracking of pernicious gas such as (Poly Chlorinated Diben-jo Dioxin are called for short PCDD) are arranged, so in the resource reclaim line 2, , n _HS, n _SUnder the condition (being temperature), respectively formed concentration value.

The total mole number rate of the cracked gas that the cracking inner core is produced

As follows: ${\stackrel{.}{m}}_f={\stackrel{.}{N}}_T\stackrel{-}{M}$ ${\stackrel{\&CenterDot;}{N}}_T=\underset{i,j}{\mathrm{\&Sigma;}}{n}_{c_i{H}_j}+n_{H_{2}O}+n_{\mathrm{HCL}}+{\mathrm{<figure-callout\; id="2"\; label="n\; C\; L"\; filenames="A0012347500161.png"\; state="\{\{state\}\}">n</figure-callout>}}_{C{L}_{}}+n_{H_{2}S}+n_c+n_s+{\mathrm{<figure-callout\; id="2"\; label="n\; H"\; filenames="A0012347500161.png"\; state="\{\{state\}\}">n</figure-callout>}}_{H_{}}+n_{C_{x^{\&prime;}}{H}_{y^{\&prime;}}C{L}_{{x^{\&prime;}}_2}}$

M represents the mean molecule quantity of cracked gas $\stackrel{\&OverBar;}{M}=\underset{i,j}{\mathrm{\&Sigma;}}\frac{n_{C_i{H}_j}}{N_T}(12i+j)+\frac{n_{H_{2}O}}{N_T}\&CenterDot;18+\frac{n_{\mathrm{HCL}}}{N_T}\&CenterDot;36.5+\frac{n_{C{L}_2}}{N_T}\&CenterDot;71+\frac{n_{h_{2}S}}{N_T}\&CenterDot;34+\frac{n_c}{N_T}\&CenterDot;12$ $+\frac{n_{C_{x^{\&prime;}}^{\&prime;}{H}_{y^{\&prime;}}C{L}_{{z^{\&prime;}}_2}}}{N_T}(12x^{\&prime;}+y^{\&prime;}+35.5{z^{\&prime;}}_2)$

The treating capacity of expression discarded object simple position time in cracking.When the pipeline sectional area before the distillation heat exchanger

, flow velocity , density

Be made as perfect gas, Be the static pressure (static pressure) of cracking generation gas, then its density

Be expressed as follows: Wherein $R=\frac{\hat{R}}{\stackrel{\&OverBar;}{M}}$

, M represents average part molecular weight

This integration system, except that pyrocrack furnace, another composition of removing harm generation source is to utilize the distillation principle to cooperate heat exchanger, it can be distilled into liquid state by gaseous state.Its schematic diagram such as Fig. 1, the stepwise distillation design system illustrates as Fig. 2.

First distillation heat exchange effect figure such as Fig. 3, cracked gas enter the matter flow rate of first distillation heat exchanger , temperature is T _f, the matter flow rate of outflow is

Temperature is T _F1, be distilled into the temperature T of liquid phase by gas phase _G-1, between T _f, T _F1Between, i.e. T _f＞T _G-1＞T _F1The liquid quality of distillation

Equal

Promptly

Can control m _Cl, T _Cli, T _CleTemperature value, become liquid temperature T to reach gaseous state _G-1＞T _F1Enter the matter flow rate of second group of heat exchanger

$R_{f_{}}$ ${{}_1}_{}=\frac{\hat{R}}{\stackrel{-}{M_1}},$

M, expression is left first group of heat exchanger or is entered the mean molecule quantity of all gas of second group of heat exchanger.

Leave the matter flow rate of N group distillation heat exchange group at last For

$R_{f_n}=\frac{\hat{R}}{\stackrel{\&OverBar;}{\mathrm{Mn}}}$

At last, Gas spray into secondary stove burning because

Composition and concentration be known after measure analysis, can control the appropriateness air matter flow rate

And outer oil

Flow then can very easily be controlled the ignition temperature of stove, and the temperature of outlet reaches more than 1050 ℃, and the holdup time was greater than 2 seconds.Composition to noxious pollutant can reach very high destruction clearance, the composition of the visual discarded object of distillation heat exchanger of this integration system, and the composition and the concentration of expection cracking, use level cls analysis value can obtain cracking and generate gas m _fComposition concentration, control chilling temperature and flow obtain respectively to distill temperature, flow, the composition concentration value of the turnover of heat exchanger cracking hot gas, obtain m at last _FmTo the burning of secondary stove.

So the present invention has following advantage:

One, be to utilize a plurality of pyrolysis furnaces of continous way to be connected in parallel to form, and can be for single pyrolysis furnace Inner core after vacuumizing after the charging in advance, connects heating in the ranks again and implements thermal cracking, and bazardous waste is reached Arrive the demand of thermal cracking under the complete anaerobic situation.

Two, in the process of thermal cracking, not with contact with air (anaerobic) condition under this thermal cracking generate Gas can other composition of regeneration the harmful dusty gas of secondary.

Three, can do other cracking of branch and process for the bazardous waste of different components, can reduce combination Become the concentration of harmful product.

Four, the present invention except dusty gas can be down to minimum, but and the material that resource can be reclaimed in addition Recycling.

Five, the residue of discarded object after hot cracked wherein contains available material such as carbon black etc., reaches The purpose of wasted resources.

The present invention processes harmful cause discarded object that integration system can process respectively:

One, the medical industry discarded object contains the things such as infectious chemical agent.

Two, harmful cause discarded object of organic solution.

Three, harmful cause discarded object of chloride organic solution.

Four, the bazardous waste such as greasy dirt, mercury mud.

Five, the bazardous waste of manufacture of semiconductor.

In sum, integration handling process of the present invention and management and control flow process are so that the hot tearing of whole discarded object The solution operation is able to complete, not only meets the value on the industry, and real non-common operational method can be compared, So be to propose application for a patent for invention.

Claims (6)

1, a kind of bazardous waste cracking furnace and incinerating furnace of continous way is handled integration system, it is characterized in that its step comprises:

A) air, fuel oil and the distillation generation gas later of suitable mixed proportion are introduced secondary stove internal combustion and produced hot combustion gas, in for the defeated heating clamber of pipeline, provide thermal source each pyrolysis furnace of parallel connection;

B) bazardous waste in the cracking inner core in a plurality of pyrolysis furnaces can be separately after vacuumizing, make the indirect of its combustion gas of can being heated, and the generation gas that is produced is by also connecting the resource reclaim line of establishing, be conveyed in many group distillation heat exchanger pipelines, condense into liquid fuel and liquid water collection in collection is received groove generating vaporizer in the gas, incoagulable gas then burns by utilizing reclaim line to be conveyed in the secondary stove again;

C) heating clamber of supplying with each pyrolysis furnace is simultaneously implemented the hot combustion gas of indirect, via the discharge pipe that is connected in parallel on each pyrolysis furnace, after the hot combustion gas after utilizing is conveyed into empty dirty treatment facility and handles, is disposed in the atmosphere again;

D) after the cracking of cracking inner core is finished, order is in parallel to be arranged in vavuum pump on the removing pipeline of each cracking inner core, to residue in after generation gas in the cracking inner core attracts out, be earlier through the cooling of cooling heat exchanger, burns by utilizing reclaim line to be conveyed in the secondary stove more again.

2, the bazardous waste cracking furnace and incinerating furnace of continous way as claimed in claim 1 is handled integration system, it is characterized in that each pyrolysis furnace is provided with the cracking inner core in being and divides inside and outside two-layer cracking room and heating clamber, and in cracking room, be provided with the thermal cycle pipeline, again and be attached to the resource reclaim line of each pyrolysis furnace and remove on the branch pipe of pipeline, and all be respectively equipped with recovery valve and scavenging valve, and insert in the cracking room of each cracking inner core; Secondly, have again on each pyrolysis furnace and can connect the branch pipe of secondary stove for defeated pipeline, and be respectively equipped with heating valve, be provided with drain valve with the discharge pipe branch pipe that is connected in parallel in addition, in the heating clamber of the interior interlayer of the hot combustion gas guiding inflow pyrolysis furnace that the secondary stove can be produced, provide heat energy that the cracking inner core is imposed indirect, the hot combustion gas after utilizing causes and does empty dirty the processing in the empty dirty treatment facility, at last, again it is drained in the atmosphere.

3, the bazardous waste cracking furnace and incinerating furnace of continous way as claimed in claim 1 is handled integration system, it is characterized in that independently being provided with adjustment control valve and flow control valve more respectively on defeated pipeline and the resource reclaim line.

4, the bazardous waste cracking furnace and incinerating furnace of continous way as claimed in claim 1 is handled integration system, it is characterized in that secondary outlet of still place is provided with the controlled temperature control valve that heats the combustion gas output temperature.

5, the bazardous waste cracking furnace and incinerating furnace of continous way as claimed in claim 1 is handled integration system, the chimney place that it is characterized in that the least significant end of empty dirty treatment facility, being provided with the exhaust that can measure the composition of discharging gas and concentration forms and measures monitoring equipment, the data that measured can be feedback and give the secondary stove, spray into the fuel oil in the secondary stove and the matter flow rate of air with control.

6, the bazardous waste cracking furnace and incinerating furnace of continous way as claimed in claim 1 or 2 is handled integration system, it is characterized in that the operation control step of each cracking is to comprise:

A) close each valve that is connected on the pyrolysis furnace earlier, take out the cracking inner core and pack into behind an amount of discarded object, insert again in the pyrolysis furnace its sealing, scavenging valve is opened, and the startup vavuum pump, will vacuumizing in the cracking inner core, the gas of being released flows into the secondary stove after flowing into and utilizing reclaim line again; When vacuumize finish after, close scavenging valve and open recovery valve, this moment recovery valve be to interconnect with other recovery valves, so the generation gas of cracking can be flowed in the first cracking inner core, till reaching balance by recovery valve;

B) at this moment, open heating valve and drain valve again, the heat combustion flow that secondary stove burning is generated go into the outer heating clamber of pyrolysis furnace and thermal cycle pipeline internally the discarded object in the cracking inner core of layer impose indirect, hot combustion gas after the row heating is flowed out by drain valve, after compiling via discharge pipe, enter scrubbing tower cleaning and filtering harmful substance in addition, wherein liquid harmful substance is then neutralized through the acid-base neutralization groove, and gas then is directed to smoke stack emission through drawing air exhauster thoroughly;

C) and the discarded object in the cracking inner core after indirect, promptly begin to produce thermal cracking and the fusion vaporization, this generates gas and then discharges through recovery valve, and compile and enter through in succession many groups distillations of polyphone heat exchangers by the resource reclaim line, it is a scope of being set its condensation temperature according to the different condensation temperatures of the various gas with various that will reclaim, and can obtain various liquid fuel and aqueous water, separated with oil water separator and recovery respectively, last Device in Gas enters through utilizing reclaim line is more again burnt in the secondary stove again;

D) secondly, after the discarded object cracking of cracking inner core is finished, need close each valve that is connected to pyrolysis furnace earlier, only open scavenging valve, make cracking residual in the cracking inner core generate gas through cooling heat exchanger, again through the attraction of vavuum pump and enter and utilize again in the reclaim line, and burnt in the inflow secondary stove, after a period of time, scavenging valve is closed and opened air valve fresh cold air is entered in the cracking inner core, after being full of, open scavenging valve again and close air valve, after enforcement vacuumizes and finishes once more, just scavenging valve can be closed, the outer heating clamber of pyrolysis furnace is opened, the cracking inner core is taken out, the cracking inner core of new discarded object of will packing into is again put into heating clamber and is implemented thermal cracking, the operation thermal cracking operation of circulation so again and again, and the cracking work flow of other each pyrolysis furnace is all identical.

Images