CN104226098B - A kind of modified pitch exhaust treatment system and treatment process thereof - Google Patents

Abstract

The invention discloses a kind of modified pitch exhaust treatment system and treatment process thereof, comprise the following steps: collect tail gas, and exhaust gas component is analyzed, be divided into the inorganic matter of Gasification particle, steam, organic matter and sulfur-bearing etc. according to exhaust gas component; Different treatment facilities is selected according to exhaust gas component; Its treatment system comprises tail gas collecting device, condensing unit, refrigerant reduction apparatus, tail gas spray filter, dewater unit, burner, stoste pond, reduction pond, sedimentation basin, cooling device and control cabinet, the treatment facility different according to collected exhaust gas component different choice, to reach best treatment effect.Different types of tail gas that the present invention can produce according to different types of modified pitch, according to handling process, selects corresponding functional device module, carries out assembling, and while guarantee treatment effect, equipment simple installation is easy.

Description

A kind of modified pitch exhaust treatment system and treatment process thereof

Technical field

The present invention relates to modified pitch tail gas disposal technique field, specifically a kind of modified pitch exhaust treatment system and treatment process thereof.

Background technology

When asphalt applications to road construction and maintenance, in order to make pitch play or have more excellent Practical Performance, adding different types of modifier in pitch of being everlasting, thus making the modified pitch of different performance, improve serviceability and the life-span of road.

But; due to high temperature, the reason such as physics or chemical reaction, some component material modified be volatile; in the production and later stage use procedure of modified pitch; usually can produce along with the gas of the contaminated environment such as flue gas, stench, directly threaten the healthy of producers and production site surrounding resident.And due to the kind of modified pitch more, its tail gas kind produced comprise wherein one or more, for the process of modified pitch tail gas, there is no corresponding treatment process and equipment at present, along with environmental disruption is day by day serious, the process for modified pitch tail gas also seems particularly important, traditional general processing mode, treatment effect is not good, and easily causes the waste of material and the increase of processing cost.

Summary of the invention

The object of the present invention is to provide a kind of economic, practical modified pitch exhaust treatment system and treatment process thereof, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the invention provides following technical scheme:

A kind of modified pitch exhaust treatment system, comprises burner, dewater unit, accumulator tank, refrigerant reduction apparatus, tail gas spray filter, cooling device, stoste pond, sedimentation basin, reduction pond, waste oil recycling bin, condensing unit and tail gas collecting device; Burner connects the gas vent above dewater unit by negative-pressure air fan, gas pipeline, bottom dewater unit, the gas feed of side is by the offgas outlet B above gas pipeline connection tail gas spray filter, inlet exhaust gas B below tail gas spray filter is connected with the offgas outlet A of condensing unit, the inlet exhaust gas A of condensing unit exports connector with the tail gas of tail gas collecting device and is connected, the refrigerant import of the upper side of condensing unit is connected with accumulator tank by pipeline, and condensing unit is also connected with refrigerant reduction apparatus by refrigerant pump; Discharge outlet bottom dewater unit is connected with reduction pond, the oil drain out in reduction pond is connected with waste oil recycling bin, the inlet A in reduction pond is connected with the leakage fluid dram A bottom tail gas spray filter by liquid line, reduction pond is also connected with sedimentation basin, cooling device is installed in the top of sedimentation basin, and sedimentation basin side connects sedimentation basin opposite side by cooling device, little water pump, sedimentation basin is also connected with stoste pond, stoste pond connects the stoste import of tail gas spray filter by pipeline, preparation water pump, and the gas source inlet of tail gas spray filter connects air compressor machine.

As the further scheme of the present invention: condensing unit comprises inlet exhaust gas A, refrigerant import, refrigerant transfer pipeline, refrigerant exit, offgas outlet A, sewage draining exit A and condensation tank body; Condensation tank body internal structure comprises reduction of speed district, intensive tubular type lowers the temperature floor, except particulate district, sewage draining exit A is arranged on the below of condensation tank body, inlet exhaust gas A, refrigerant import, refrigerant exit, offgas outlet A are arranged on the both sides of condensation tank body, refrigerant import is arranged on the top of accumulator tank, and refrigerant exit is connected with refrigerant pump by refrigerant transfer pipeline.

As the further scheme of the present invention: described tail gas spray filter comprises liquid to be discharged, gas dispersion apparatus, sewage draining exit B, leakage fluid dram A, container, observation panel, atomizer, annulus line, primary filter net, service ports, washer jet, secondary filter net, offgas outlet B, stoste import, gas source inlet, air source control valve and inlet exhaust gas B, offgas outlet B is offered above container, observation panel is offered in the below of offgas outlet B, service ports is provided with below observation panel, the first half of container is provided with primary filter net, secondary filter net, annulus line is arranged on primary filter net, the lower position of the position between secondary filter net and primary filter net, primary filter net, annulus line between secondary filter net is provided with washer jet, the annulus line of primary filter side off the net is provided with atomizer, be connected with stoste import at the annulus line of outside of containers, at primary filter net, position between secondary filter net and install liquid control valve on the annulus line of outside of containers, observation panel is offered in the below of annulus line, gas source inlet is connected to the atomizer in container by air source control valve, not only need in the bottom of container to discharge liquid, also installing gas dispersal device, leakage fluid dram A is set above gas dispersion apparatus, container bottom side arranges sewage draining exit B, in the side of container bottom, inlet exhaust gas B is set, and inlet exhaust gas B is higher than liquid 100mm-150mm to be discharged, extend into below the curved feed liquor face of internal tank part mouth of pipe 5-10mm, concordant with gas dispersion apparatus.

As the further scheme of the present invention: dewater unit comprises power input shaft, discharge outlet, dehydration tank body, centrifugal network, cavernous body, boosting fan blade, sealing baffle, cover, bearing, gas vent, peep hole and gas feed; The outside of dehydration tank body: gas vent is offered in the top of dehydration tank body, peep hole is offered in the side above dehydration tank body, and discharge outlet is offered in the bottom of dehydration tank body, and gas feed is offered in the side of dehydration tank body the latter half; The inside of dehydration tank body: cover is installed in the side above dehydration tank body, power input shaft is installed by bearing in the centre of dehydration tank body, and power input shaft extends to outside the bottom of dehydration tank body, and connect power-equipment, the first half of power input shaft installs boosting fan blade, and there is sealing baffle the both sides of boosting fan blade, and sealing baffle is arranged on cover, below sealing baffle, centrifugal network is installed, centrifugal network is also provided with cavernous body.

As the further scheme of the present invention: burner comprises combustion chamber, temperature descending section device and heat conduction oil reservoir, combustion chamber comprises combustion adjuvant nozzle matrix, gas nozzle matrix, catalytic oxidation layer and igniter; Offgas outlet C is set above temperature descending section device, the connection combustion chamber, below of temperature descending section device, the skin of combustion chamber is heat conduction oil reservoir, temperature-detecting device A is installed in the side of heat conduction oil reservoir, and offer heat conductive oil inlet respectively in the both sides of heat conduction oil reservoir and conduction oil exports, the centre of combustion chamber is provided with catalytic oxidation layer, and igniter, combustion adjuvant nozzle matrix and gas nozzle matrix are installed in the below of catalytic oxidation layer, and inlet exhaust gas C is offered in the below of combustion chamber.

As the further scheme of the present invention: reduction pond comprises reduction casing, dosing filter screen A, oil-water separating net, agitator A, spiral chemicals dosing plant A, pH checkout gear A and temperature-detecting device B, the inside of reduction casing: install dosing filter screen A in the middle of reduction casing, agitator A is arranged in dosing filter screen A, oil-water separating net is arranged on the side of dosing filter screen A, and be located at inlet A, one side of oil drain out, the outside of reduction casing: reduction casing is installed dosing filter screen A side and installed inlet A and oil drain out, inlet A is near oil-water separating net the latter half, oil drain out is arranged on top, concordant with liquid level, leakage fluid dram B is arranged on the opposite side of reduction casing, a little less than oil drain out, sewage draining exit C is arranged on the bottom of reduction casing, pH checkout gear A and temperature-detecting device B is also installed in the side of reduction casing, spiral chemicals dosing plant A is installed in the top of reduction casing, device outlet is facing to inside dosing filter screen A.

As the further scheme of the present invention: cooling device comprises fan, horizontal liquid exhausting pipes, circular fan housing and cooling piece; It is inner that fan, horizontal liquid exhausting pipes and cooling piece are installed in circular fan housing, fan is in the side of circular fan housing, all the other are at opposite side, the top of horizontal liquid exhausting pipes arranges liquid-inlet, the below of horizontal liquid exhausting pipes arranges liquid outlet, post cooling piece respectively at the upper and lower of horizontal liquid exhausting pipes, quantity is according to system radiating amount reasonable Arrangement.

As the further scheme of the present invention: sedimentation basin comprises sedimentation tank body and baffle plate; The both sides of sedimentation tank body offer inlet B, leakage fluid dram C and sewage draining exit D, install baffle plate in the middle of sedimentation tank body, and inlet B is lower than the leakage fluid dram B in reduction pond, and leakage fluid dram C is a little less than inlet B.

As the further scheme of the present invention: stoste pond comprises temperature-detecting device C, pH checkout gear B, agitator B, spiral chemicals dosing plant B, liquid level, stoste tank body and dosing filter screen B; The both sides of stoste tank body offer inlet C, leakage fluid dram D, sewage draining exit E respectively; Temperature-detecting device C, pH checkout gear B is arranged in the middle part of stoste tank body upper and lower, inlet C is lower than the leakage fluid dram C of sedimentation basin, the water supplement port offered above stoste tank body connects tap water pipe line, rectify dosing filter screen B inner under water supplement port, install agitator B in the middle of dosing filter screen B, spiral chemicals dosing plant B is also installed in the top of stoste tank body, and outlet is inner facing to dosing filter screen B, liquid level is installed at stoste tank body top, and liquid level bottom is lower than inlet C certain distance.

The treatment process of described modified pitch exhaust treatment system, comprises the following steps:

(1) collect tail gas, and exhaust gas component is analyzed, be divided into the inorganic compound of Gasification particle, steam, high molecular organic compound and sulfur-bearing according to exhaust gas component;

(2) different PROCESS FOR TREATMENT is selected according to exhaust gas component, specific as follows:

A, Gasification particle and steam: the tail gas containing Gasification particle contains steam, for such tail gas, adopt condensing mode to process; In condensing unit, tail gas is first by deceleration and the airflow direction sudden change in reduction of speed district, make larger particle deposition on tank skin, when residual exhaust is by tubular type cooling layer, steam liquefies, simultaneously along with the reduction of temperature and the existence of water droplet, small particle accumulates large particulate gradually, by the tail gas after tubular type cooling floor except particulate district deposition, be progressively enriched in bottom condensing unit, finally discharge from sewage draining exit and collect recycling;

B, inorganic compound: to the tail gas containing inorganic compound, first carry out spray filtering, then acid-base neutralization is carried out, carry out chemical absorbing again, finally carry out dehydration discharge, and before discharging the material of discharging is detected, determine whether to reach discharge standard, if defective, re-start acid-base neutralization, chemical absorbing, dehydration, discharge after reaching discharge standard;

C, organic compound: to the tail gas containing organic compound, by condensation process cooling reduction, dehydration, make it reach emission request; The organic compound of or not easily condensation lower for gasification temperature, is needed to be processed by burning, if the organic matter of sulfur-bearing, nitrogen, also needs according to step b process after burning;

D, when in tail gas containing in Gasification particle, inorganic compound and organic compound arbitrarily two or more material time, be combined according to step a, b, c treatment process to various material.

Compared with prior art, the invention has the beneficial effects as follows: the present invention has made the vent gas treatment module that can be combined, can according to dissimilar tail gas, different modules is selected to assemble, the waste and the unnecessary processing cost that avoid material increase, not only economy but also practical, simultaneously, the invention allows for the vent gas treatment design cycle of modified pitch, involved in the present invention to treatment process comprise: exhaust collection, condensation, spray and filtration, acid-base neutralization, dehydration, burning etc., according to different modified pitch tail gas, concrete treatment process can be determined according to this flow process, select the processing module needed.

Accompanying drawing explanation

Fig. 1 is modified pitch vent gas treatment flow chart;

Fig. 2 is modified pitch exhaust treatment system structural representation;

Fig. 3 is tail gas collecting device structural representation;

Fig. 4 is condensing unit structural representation;

Fig. 5 is tail gas spray filter structural representation;

Fig. 6 is drainage arrangement structural representation;

Fig. 7 is burner structural representation;

Fig. 8 is reduction pool structure schematic diagram;

Fig. 9 is cooling device structural representation;

Figure 10 is sedimentation basin structural representation;

Figure 11 is stoste pool structure schematic diagram;

In figure: 1-burner, 2-dewater unit, 3-accumulator tank, 4-refrigerant reduction apparatus, 5-refrigerant pump, 6-tail gas spray filter, 7-preparation water pump, 8-air compressor machine, 9-cooling device, the little water pump of 10-, 11-stoste pond, 12-sedimentation basin, 13-reduces pond, 14-waste oil recycling bin, 15-condensing unit, 16-tail gas collecting device, 17-negative-pressure air fan, 18-tail gas exports connector, 19-connector, 20-exhaust pipe road, 21-inlet exhaust gas A, the import of 22-refrigerant, 24-refrigerant transfer pipeline, 25-refrigerant exit, 26-offgas outlet A, 27-sewage draining exit A, 28-condensation tank body, 29-liquid to be discharged, 30-gas dispersion apparatus, 31-sewage draining exit B, 32-leakage fluid dram A, 33-container, 34-observation panel, 35-atomizer, 36-annulus line, 37-primary filter net, 38-service ports, 39-washer jet, 40-secondary filter net, 41-offgas outlet B, 42-liquid control valve, the import of 43-stoste, 44-gas source inlet, 45-air source control valve, 46-inlet exhaust gas B, 47-power input shaft, 48-discharge outlet, 49-dewaters tank body, 50-centrifugal network, 51-cavernous body, 52-boosting fan blade, 53-sealing baffle, 54-cover, 55-bearing, 56-gas vent, 57-peep hole, 58-gas feed, 59-inlet exhaust gas C, 60-combustion adjuvant nozzle matrix, 61-gas nozzle matrix, 62-heat conductive oil inlet, 63-heat conduction oil reservoir, 64-catalytic oxidation layer, 65-temperature-detecting device A, 66-offgas outlet C, 67-temperature descending section device, 68-conduction oil exports, 69-igniter, 70-reduces casing, 71-dosing filter screen A, 72-oil-water separating net, 73-inlet A, 74-oil drain out, 75-agitator A, 76-spiral chemicals dosing plant A, 77-leakage fluid dram B, 78-pH checkout gear A, 79-temperature-detecting device B, 80-sewage draining exit C, 81-fan, 82-liquid-inlet, the horizontal liquid exhausting pipes of 83-, 84-liquid outlet, the circular fan housing of 85-, 86-cooling piece, 87-sedimentation tank body, 88-inlet B, 89-leakage fluid dram C, 90-baffle plate, 91-sewage draining exit D, 92-temperature-detecting device C, 93-pH checkout gear B, 94-inlet C, 95-water supplement port, 96-agitator B, 97-spiral chemicals dosing plant B, 98-leakage fluid dram D, 99-liquid level, 100-stoste tank body, 101-dosing filter screen B, 102-sewage draining exit E.

Detailed description of the invention

Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Refer to Fig. 2, in the embodiment of the present invention, a kind of modified pitch exhaust treatment system, comprises burner 1, dewater unit 2, accumulator tank 3, refrigerant reduction apparatus 4, tail gas spray filter 6, cooling device 9, stoste pond 11, sedimentation basin 12, reduction pond 13, waste oil recycling bin 14, condensing unit 15 and tail gas collecting device 16.Burner 1 is by negative-pressure air fan 17, gas pipeline connects the gas vent 56 above dewater unit 2, the gas feed 58 of the side bottom dewater unit 2 is by the offgas outlet B41 above gas pipeline connection tail gas spray filter 6, inlet exhaust gas B46 below tail gas spray filter 6 is connected with the offgas outlet A of condensing unit 15, the inlet exhaust gas A21 of condensing unit 15 exports connector 18 with the tail gas of tail gas collecting device 16 and is connected, the upper side of condensing unit 15 is connected with accumulator tank 3 by refrigerant pipe, condensing unit 15 is also connected with refrigerant reduction apparatus 4 by refrigerant pump 5, dewater unit 2 bottom discharge mouth 48 is connected with reduction pond 13, the oil drain out 74 in reduction pond 13 is connected with waste oil recycling bin 14, the inlet A73 in reduction pond 13 is connected with the leakage fluid dram A32 of the bottom of tail gas spray filter 6 with by liquid line, reduction pond 13 is also connected with sedimentation basin 12, cooling device 9 is installed in the top of sedimentation basin 12, and sedimentation basin 12 side is by cooling device 9, little water pump 10 connects sedimentation basin 12 opposite side, sedimentation basin 12 is also connected with stoste pond 11, pipeline is passed through in stoste pond 11, preparation water pump 7 connects the stoste import 43 of tail gas spray filter 6, tail gas spray filter 6 also connects air compressor machine 8.

Refrigerant pump 5, preparation water pump 7, air compressor machine 8, little water pump 10, waste oil recycling bin 14 are standard device or product with negative-pressure air fan 17, can choose corresponding model according to gas treatment amount.

In modified pitch exhaust treatment system, tail gas is under the effect of negative-pressure air fan 17, whole tail gas pipeline is made to form negative pressure, tail gas enters condensing unit 15 from tail gas collecting device 16, the water being separated low-temperature liquefaction in tail gas or solidifying, Gasification particle and partial organic substances matter, tail gas after being separated enters tail gas spray filter 6 subsequently, by entering into dewater unit 2 by pipeline after spray filtering, dry gas after dehydration arrives burner 1 through negative-pressure air fan 17, final combustion is discharged, if containing sulfur-bearing, the organic matter of the elements such as nitrogen, the inorganic matter having sulfur-bearing nitrogen after burning produces, therefore increase tail gas spray filter 6 and dewater unit 2 is needed to carry out can discharging in process.Liquid is after stoste pond 11 prepares, tail gas spray filter 6 is entered under the effect of preparation water pump 7, the pressure-air that air compressor machine 8 produces simultaneously also enters tail gas spray filter 6, liquid is fully atomized, complete spray gas scrubbing, the sewage formed in tail gas spray filter 6, under gravity, reduction pond 13 is flowed to from the leakage fluid dram A32 of this bottom of device, the filtration to liquid and reduction is completed in reduction pond 13, the floating dust filtered down flows to waste oil recycling bin 14, through the flow direction sedimentation basin 12 of reduction, in sedimentation basin 12, except the precipitation of water-fast material that chemical reaction is generated, by the fluid temperature signal of temperature detection feedback in reduction pond 13, cooling piece in little water pump 10 and cooling device 9, fan starts automatically, form the partial circulating of sedimentation basin 12-little water pump 10-cooling device 9-sedimentation basin 12, complete the cooling to liquid.Liquid after precipitation, cooling finally enters stoste pond 12 along pipeline, realizes recycling of the liquid of configuration liquid.Refrigerant in accumulator tank flows to condensing unit 15 by refrigerant pipeline, in refrigerant device 15, refrigerant and tail gas complete the transmission of heat, and the refrigerant absorbing heat is pumped into refrigerant reduction apparatus 4 by refrigerant pump 5, and the refrigerant after the cooling of refrigerant reduction apparatus is got back in accumulator tank 3 and again circulated.

Refer to Fig. 3, tail gas collecting device 16 comprises connector 19, exhaust pipe road 20 exports connector 18 with tail gas, and connector 19 is arranged on exhaust pipe road 20, and tail gas exports the end that connector 18 is arranged on exhaust pipe road 20.In figure, tail gas generation device does not illustrate, the exhaust outlet of tail gas generation device all docks with connector 19, its caliber size, quantity and connected mode are determined according to the situation of tail gas discharge point, the caliber of the major-minor pipeline on exhaust pipe road 20 is determined according to the amount of produced tail gas, can be connect by procurement criteria galvanized pipe group, the mode such as fiberglass pipeline customized makes, tail gas exports connector 18 for the connection with lower road treatment process.In order to improve the utilization rate of system pressure, require that all connectors all need good seal, this part mainly completes collection and the water conservancy diversion of tail gas.

Refer to Fig. 4, condensing unit 15 comprises inlet exhaust gas A21, refrigerant import 22, refrigerant transfer pipeline 24, refrigerant exit 25, offgas outlet A26, sewage draining exit A27 and condensation tank body 28.There are two kinds of space structures condensation tank body 28 inside, and one is open structure, lays respectively at the import and export of tail gas; One is tabular or tubulose interlayer, and refrigerant passage and exhaust gas channel are spaced, and exhaust gas channel is divided into four districts, and four districts are linked to be a path.Sewage draining exit A27 is arranged on the bottom of condensation tank body 28, inlet exhaust gas A21, refrigerant import 22, refrigerant exit 25, offgas outlet A26 are arranged on the both sides of condensation tank body 28, refrigerant import 22 is arranged on the top of accumulator tank 3 and stretches in refrigerant, refrigerant exit 25 is connected with refrigerant pump 5 by refrigerant transfer pipeline 24, and the outlet of refrigerant pump 5 connects refrigerant reduction apparatus 4 by refrigerant transfer pipeline 24.

In use procedure, the tail gas collected enters the open area of gas inlet condensation tank body 28 from inlet exhaust gas A21, by the change of reduction of speed and airflow direction, be separated the larger particulate in tail gas, tail gas is through four districts afterwards, in these four districts, by refrigerant, tail gas is lowered the temperature, by the mode of condensation, steam in tail gas and the higher organic matter of gasification temperature liquefy or aggegation gradually, simultaneously along with temperature reduces, compared with small particle with the steam condensed gradually for carrier, pool larger particulate gradually, finally enter the open area of offgas outlet, by the change of reduction of speed and airflow direction, complete the precipitation and separation again of tail gas, finally enter into spray filter 6 from offgas outlet A26, whole process can complete steam, particulate and most of organic separation.Four districts refrigerant import and export direction just in time contrary with the import and export direction of tail gas, refrigerant is under the effect of refrigerant pump 5, condensation tank body 28 is entered into from refrigerant import 22, from refrigerant exit 25 after absorption tail gas heat quantity, refrigerant reduction apparatus 4 is arrived through refrigerant pump 5 along refrigerant transfer pipeline 24, finally get back in accumulator tank 3, realize recycling of refrigerant.For the reduction of refrigerant, general employing air cooling, namely by refrigerant is sprayed to aerial dispersion, then naturally fall, complete the heat exchange of refrigerant and air, realize the reduction of refrigerant, for the place having outdoor temperature higher, module cooling device 9 can be added on the pipeline of refrigerant import 22 front end, enforceable cooling is carried out to refrigerant.

Refer to Fig. 5, tail gas spray filter 6 comprises liquid 29 to be discharged, gas dispersion apparatus 30, sewage draining exit B31, leakage fluid dram A32, container 33, observation panel 34, atomizer 35, annulus line 36, primary filter net 37, service ports 38, washer jet 39, secondary filter net 40, offgas outlet B41, stoste import 43, gas source inlet 44 and inlet exhaust gas B46.Offgas outlet B41 is offered above container 33, observation panel 34 is offered in the below of offgas outlet B41, service ports 38 is provided with below observation panel 34, the first half of container 33 is provided with primary filter net 37, secondary filter net 40, annulus line 36 is arranged on primary filter net 37, the lower position of the position between secondary filter net 40 and primary filter net 37, primary filter net 37, annulus line 36 between secondary filter net 40 is provided with washer jet 39, annulus line 36 below primary filter net 37 is provided with atomizer 35, annulus line 36 outside container 33 is connected with stoste import 43, at primary filter net 37, position between secondary filter net 40 and annulus line 36 outside container 33 installs liquid control valve 42, observation panel 34 is offered in the below of annulus line 36, by air source control valve 45, gas source inlet 44 is installed below annulus line 36 outside container 33, gas source inlet 44 is connected to the atomizer 35 in container by air source control valve 45, not only need in the bottom of container to discharge liquid 29, also installing gas dispersal device 30, leakage fluid dram A32 is set above gas dispersion apparatus 30, container bottom side arranges sewage draining exit B31, in the side of container bottom, inlet exhaust gas B46 is set, and inlet exhaust gas B46 is higher than liquid 29 to be discharged about 100mm-150mm, 5-10mm below the curved feed liquor face of the mouth of pipe extending into internal tank part, concordant with gas dispersion apparatus.

Tail gas enters container 33 from inlet exhaust gas B46, on then straight, enters into dewater unit 2 from offgas outlet B41.The liquid of preparation enters from stoste import 43, sprays in container 33, fall into bottom container 33 with tail gas after reacting via washer jet 39, atomizer 35, flows automatically to reduction pond 13 from leakage fluid dram A32.

Gas dispersion apparatus 30 is the orifice plate of certain order number that anti-corrosion material is special, for entering tail gas dispersion in a liquid.Atomizer 35 is that the standard aqueous vapor of buyable uses nozzle with, storied placement in tank body, and the flow according to process gas can arrange that 1-3 arrange, for the dispersion to liquid, is beneficial to fully contacting of liquid and tail gas, the minimizing reactive absorption time.The filter course that primary filter net 37 is piled up for selected materials, is mainly used in being separated the obstruct of moisture content in gas, intercepts the moisture film of formation simultaneously, be conducive to the process again of tail gas.Particular filter material selected by secondary filter net 40, is mainly used in the separation of aqueous vapor.Washer jet 39 is common atomizer, and liquid outlet quantity is comparatively large, is mainly used in maintaining and cleaning to the superincumbent particulate of attachment of primary filter net 37 moisture film.In this device, all elements are except container 33, and then equal buyable processes use slightly.

The effect of tail gas spray filter 6 mainly contains five:

1) to the peptizaiton entering container 33 tail gas, simultaneously the raise up bubble that formed of tail gas seethes effect to bottom liquid, is beneficial to the discharge of bottom precipitation, impurity and oil film etc.

2) complete cooling to liquid and suction-operated by cryogenic liquid, make moieties condensation wherein, the water smoke with spray falls into bottom container 33.

3) by the chemical reagent, plasma etc. in configuration liquid, complete organic matter process and absorption in gas.

4) use nozzle with by aqueous vapor, the atomization of liquid can better be completed, make it in container 33, form thick mist wall, be beneficial to fully contacting of liquid and tail gas, reduce the reaction time, improve treatment effeciency.

5) by secondary filter net, processed is carried out to the tail gas after spray, reduce the moisture content in tail gas.

Refer to Fig. 6, dewater unit 2 comprises power input shaft 47, discharge outlet 48, dehydration tank body 49, centrifugal network 50, cavernous body 51, boosting fan blade 52, sealing baffle 53, cover 54, bearing 55, gas vent 56, peep hole 57 and gas feed 58.The outside of dehydration tank body 49: gas vent 56 is offered in the top of dehydration tank body 49, peep hole 57 is offered in the side above dehydration tank body 49, and discharge outlet 48 is offered in the bottom of dehydration tank body 49, and gas feed 58 is offered in the side of dehydration tank body 49 the latter half; The inside of dehydration tank body 49: cover 54 is installed in the side above dehydration tank body 49, power input shaft 47 is installed by bearing 55 in the centre of dehydration tank body 49, and power input shaft 47 extends to outside the bottom of dehydration tank body 49, and connect power-equipment, the first half of power input shaft 47 installs boosting fan blade 52, and there is sealing baffle 53 both sides of boosting fan blade 52, and sealing baffle 53 is arranged on cover 54, centrifugal network 50 is installed below sealing baffle 53, centrifugal network 50 is also provided with cavernous body 51.

In dewater unit, centrifugal network 50 and cavernous body 51 are standard component, buyable.Power input shaft 47 two ends are fixed on dehydration tank body 49 by bearing 55, power input shaft 47 being provided with boosting fan blade 52, for accelerating the discharge of gas, reducing tail gas by pressure loss during this device, cover 54 there is sealing baffle 53, for the gas partitions before and after dehydration being opened.Tail gas is sloughed moisture by centrifugal action and is entered center, then enter into burner 1 from gas vent 56 through negative-pressure air fan 17 after entering dehydration tank body 49 from gas feed 58.

Refer to Fig. 7, burner 1 comprises combustion chamber, temperature descending section device 67 and heat conduction oil reservoir 63, and combustion chamber comprises combustion adjuvant nozzle matrix 60, gas nozzle matrix 61, catalytic oxidation layer 64 and igniter 69; Offgas outlet C66 is set above temperature descending section device 67, the connection combustion chamber, below of temperature descending section device 67, the skin of combustion chamber is heat conduction oil reservoir 63, temperature-detecting device A65 is installed in the side of heat conduction oil reservoir 63, and offer heat conductive oil inlet 62 in the both sides of heat conduction oil reservoir 63 respectively and export 68 with conduction oil, the centre of combustion chamber is provided with catalytic oxidation layer 64, igniter 69, combustion adjuvant nozzle matrix 60 and gas nozzle matrix 61 are installed in the below of catalytic oxidation layer 64, and inlet exhaust gas C59 is offered in the below of combustion chamber.

Whole device is cylinder-like structure, and nexine is combustion chamber, and skin is heat recovery layer and heat conduction oil reservoir 63.At bottom of combustion chamber, distribute the nozzle of two-layer even arrangement, lower floor is combustion adjuvant nozzle matrix 60, supplementing for oxygen, upper strata is gas nozzle matrix 61, for providing of the fuel such as coal gas or alcohol, in combustion, heat is delivered to catalytic oxidation layer 64, this layer of temperature is made to remain on more than 400 DEG C, after tail gas enters combustion chamber, pass through the zone of flame, complete primary combustion, most of organic substance is made to obtain combustion decomposition, after undecomposed organic matter arrives catalytic oxidation layer 64, at catalyst, high temperature, under the condition of combustion adjuvant, reach sufficient combustion decomposition.Above catalytic oxidation layer 64, have heat-conducting oil pipes, communicate with the heat conduction oil reservoir 63 of outer wall, heat is delivered to outside use by the conduction oil of circulation in heat conduction oil reservoir 63, and temperature-detecting device A65 can monitor the temperature of conduction oil at any time.

Refer to Fig. 8, reduction pond 13 comprises reduction casing 70, dosing filter screen A71, oil-water separating net 72, agitator A75, spiral chemicals dosing plant A76, pH checkout gear A78, temperature-detecting device B79 and sewage draining exit C80.The inside of reduction casing 70: install dosing filter screen A71 in the middle of reduction casing 70, agitator A75 is arranged in dosing filter screen A71, and oil-water separating net 72 is arranged on the side of dosing filter screen A71; The outside of reduction casing 70: reduction casing 70 is installed dosing filter screen A71 side and installed inlet A73 and oil drain out 74, inlet A73 is near oil-water separating net 72 the latter half, oil drain out 74 is arranged on top, concordant with liquid level, leakage fluid dram B77 is arranged on the opposite side of reduction casing 70, a little less than oil drain out 74, sewage draining exit C80 is arranged on the bottom of reduction casing 70, pH checkout gear A78 and temperature-detecting device B79 is also installed in the side of reduction casing 70, spiral chemicals dosing plant A76 is installed in the top of reduction casing 70, and device outlet is facing to inside dosing filter screen A71.

Reduction pond 13 be divide into three regions by dosing filter screen A71 and oil-water separating net 72, the space that oil-water separating net 72 is formed with reduction casing 70 mainly completes floating oil filtration and collection, the waste water of coming in from inlet A73 passes through this region, water and particulate can pass through, fluid is then stopped, swim on this region liquid level, overflow to waste oil recycling bin 14 along oil drain out 74 after certain altitude.Dosing filter screen A71 is round tank assembling structure, middle installation agitator A75, this region mainly completes the miscible of reducing agent and liquid, spiral chemicals dosing plant A76 has been assembled by slow-speed of revolution stepper motor, ribbon, outer barrel, hopper, when after pH checkout gear A78 transmission of signal, control step motor action, reducing agent in hopper takes in dosing filter screen A71 by ribbon, then melt rapidly under the effect of agitator A75, liquid after thawing arrives remaining area, continued the reduction of liquid, the liquid after reduction enters into sedimentation basin 12 by leakage fluid dram B77.

Refer to Fig. 9, cooling device 9 comprises fan 81, horizontal liquid exhausting pipes 83, circular fan housing 85 and cooling piece 86.It is inner that fan 81, horizontal liquid exhausting pipes 83 and cooling piece 86 are installed in circular fan housing 85, fan 81 is in the side of circular fan housing 85, all the other are at opposite side, the top of horizontal liquid exhausting pipes 83 arranges liquid-inlet 82, the below of horizontal liquid exhausting pipes 83 arranges liquid outlet 84, post cooling piece respectively at the upper and lower of horizontal liquid exhausting pipes, quantity is according to system radiating amount reasonable Arrangement.

Cooling device 9 external form is circular, be beneficial to effective utilization of fan 81 rotary actuation air quantity, the aluminum pipe that horizontal liquid exhausting pipes 83 arranges for S shape, outer tube wall is evenly arranged cooling piece 86, and the upper liquid import 82 of liquid from horizontal liquid exhausting pipes is injected by liquid under the effect of little water pump 10, flows back to sedimentation basin 12 along pipe from liquid outlet 84, cooling piece 86 is close to tube wall side refrigeration, absorb the heat of liquid in tube wall, the heat that opposite side distributes is blown away by fan 81, to ensure the efficiency of freezing.

Refer to Figure 10, sedimentation basin 12 comprises sedimentation tank body 87 and baffle plate 90.The both sides of sedimentation tank body 87 offer inlet B88, leakage fluid dram C89 and sewage draining exit D91, install baffle plate 90 in the middle of sedimentation tank body 87, and inlet B88 is lower than the leakage fluid dram B77 in reduction pond, and leakage fluid dram C89 is a little less than inlet B88.

Sedimentation basin 12 is mainly by the precipitation by realizing water-fast particulate to the reduction of water velocity, and baffle plate 90 prevents liquid from directly flowing to leakage fluid dram C89 from surface.

Refer to Figure 11, stoste pond 11 comprises temperature-detecting device C92, pH checkout gear B93, agitator B96, spiral chemicals dosing plant B97, liquid level 99, stoste tank body 100 and dosing filter screen B101.The both sides of stoste tank body 100 offer inlet C94, leakage fluid dram D98, sewage draining exit E102 respectively; Temperature-detecting device C92, pH checkout gear B93 is arranged in the middle part of stoste tank body 100 upper and lower, inlet C94 is lower than the leakage fluid dram C89 of sedimentation basin 12, the top water supplement port 95 of stoste tank body 100 connects tap water pipe line, water supplement port is rectified dosing filter screen B101 inner 95 times, in the middle of dosing filter screen B101, agitator B96 is installed, spiral chemicals dosing plant B97 is also installed in the top of stoste tank body 100, outlet is inner facing to dosing filter screen B101, liquid level 99 is installed at stoste tank body 100 top, and liquid level 99 bottom is lower than inlet C94 certain distance.

Stoste pond 11 is mainly used in the configuration spraying liquid.Liquid after precipitation flows into stoste tank body 100 from inlet C94, and the height of liquid level of liquid level 99 meeting control system, during lack of water, liquid level 99 will drive the valve of water supplement port 95, and running water is entered in dosing filter screen 101, with the water level of keeping system from water supplement port 95.Spiral chemicals dosing plant B97 has been assembled by slow-speed of revolution stepper motor, ribbon, outer barrel and hopper, when after pH checkout gear B93 transmission of signal, stepper motor action, alkaline powder in hopper takes in dosing filter screen B101 by ribbon, under the effect of agitator B96, powder dissolves rapidly in water, enters into stoste tank body 100 by dosing filter screen B101, finally pumps into use in spray filter 6 from leakage fluid dram D98 by preparation water pump 7.

Because the kind of modified pitch is more, its tail gas kind produced comprise wherein one kind of multiple, for the tail gas of often kind of composition, can according to handling process, select corresponding functional module, carry out assembling, the waste and the unnecessary processing cost that avoid material increase.

The module that modified pitch exhaust treatment system has comprises condensing unit 15, tail gas spray filter 6, dewater unit 2, burner 1, refrigerant reduction apparatus 4, stoste pond 11, reduction pond 13, sedimentation basin 12, cooling device 9 and control cabinet, totally ten large modules, in use, also need to be equipped with the standard devices such as accumulator tank 3, refrigerant pump 5, preparation water pump 7, air compressor machine 8, blower fan 17.Wherein tail gas spray filter 6, reduction pond 13, control cabinet are essential module, and correspondence completes the process of oil content particulate; For the tail gas containing conventional inorganics, need increase and join stoste pond 11, sedimentation basin 12, newly-increased quantity is then determined according to contained inorganic species; For Gasification particle and organic concentration larger, and the tail gas that particulate and organic matter can directly recycle after reclaiming, condensing unit 15, refrigerant pump 5 and refrigerant reduction apparatus 4 need be selected, clean sediment can be collected, also reduce this part material by the after-treatment cost after spray link simultaneously; Higher for gas temperature, do not select the system of condensing unit 15, cooling device 9 need be selected, first by reducing the temperature of liquid, to reduce the temperature of tail gas, being conducive to the separation of pollutant, second can maintaining the equalized temperature of combined reaction; For processing requirements high containing organic tail gas, need increase and join burner 1, after burn, then carry out after-treatment to tail gas, the use of dewater unit 2 can reduce the humidity of emission gases greatly, is more conducive to carrying out smoothly of burning.

For convenience of explanation, now suppose containing above three pollutants in tail gas, and organic concentration is higher, the untreated organic matter of condensation link can reach discharge standard by burning.Then need selection condensing unit 15, refrigerant reduction apparatus 4, tail gas spray filter 6, stoste pond 11, a sedimentation basin 12, reduction 13, one, pond cooling device 9, a dewater unit 2, burner 1, control cabinet and other standard device.

In system installation process, mainly comprise the connection of tail gas pipeline, the connection of liquid line.

1) connection of tail gas pipeline

The connector 19 of tail gas collecting device 16 being fixedly connected on tail gas produces on mouth, and simultaneously at each connector mounted valve, and ensure the sealing of connection, connector 19 makes horn-like or Flange joint; Tail gas is exported connector 18 to be connected with the inlet exhaust gas A21 of condensing unit 15, the offgas outlet A26 of condensing unit 15 is connected with the inlet exhaust gas B46 of tail gas spray filter 6; The offgas outlet B41 of tail gas spray filter 6 is connected with the gas feed 58 of dewater unit 2; The gas vent 56 of dewater unit 2 is connected with the import of negative-pressure air fan 17; And then the outlet of negative-pressure air fan 17 is connected with the inlet exhaust gas C59 of burner 1; The offgas outlet C66 of burner 1 then connects chimney.

The connection of flue gas pipeline all accomplishes that air-tightness is good.

2) connection of liquid line

The connection of liquid line mainly comprises the connection of medium circulation pipeline, the connection of spray preparation circulation line.

Medium circulation pipeline is mainly used in recycling of refrigerant, in installation process, the refrigerant import import 22 of condensing unit 15 is accessed by pipeline in the refrigerant of accumulator tank 3, the refrigerant exit of condensing unit 15 is through refrigerant transfer pipeline 24, refrigerant pump 5 is connected to refrigerant reduction apparatus 4, in running, refrigerant is under the effect of refrigerant pump 5, condenser 15 is entered by the road from accumulator tank 3, indirectly heat trnasfer is completed with tail gas in condensation tank body 28, afterwards from refrigerant exit 25, along refrigerant transfer pipeline 24, refrigerant pump 5 enters refrigerant reduction apparatus 4, refrigerant reduction apparatus 4 is bulges of the uniform aperture in some directions, be positioned at above accumulator tank 3, refrigerant in refrigerant reduction apparatus 4 is under the effect of refrigerant pump 5, spray to aerial from aperture and disperse, transfer heat to air, realize the reduction of refrigerant, spraying to aerial refrigerant falls under gravity in accumulator tank 3, complete recycling of refrigerant.

The connection of spray preparation circulation line comprises the pipeline providing spray preparation and the source of the gas pipeline providing spray pressure.

Source of the gas pipeline is connected with the gas source inlet 44 of tail gas spray filter 6 by air compressor machine 8.

First the water supplement port 95 in stoste pond 11 is connected with tap water pipe line by valve by liquid line, and moisturizing when being convenient to lack of water, is connected the leakage fluid dram D98 in stoste pond 11 with the stoste import 43 of spray filter 6 by preparation water pump 7; By the sewage draining exit B31 of tail gas spray filter 6 and leakage fluid dram A32, be connected to the inlet A73 in reduction pond 13 by valve, in running, the valve at sewage draining exit B31 place is in closed condition; The oil drain out 74 in reduction pond 13 is connected to waste oil recycling bin 14 li; The reduction leakage fluid dram B77 in pond 13 is connected with the inlet B88 of sedimentation basin 12; Sedimentation basin 12 leakage fluid dram C89 is connected with the inlet C94 in stoste pond 11, completes the circulation of liquid.

Cooling device 9 is contained in above sedimentation basin 12, drives the circulation of liquid in cooling device 9 by little water pump 10.

In addition, the discharge outlet 48 of dewater unit 2 is connected to the inlet A73 in reduction pond 13 by pipeline; The equal mounted valve of sewage draining exit in condensing unit 15, reduction pond 13, sedimentation basin 12, stoste pond 11, for discharge opeing during desilting.

By producing the analysis of tail gas to Duo Jia modified pitch manufacturing enterprise, modified pitch tail gas is divided into four classes substantially, Gasification particle, steam, the inorganic compound of sulfur-bearing etc. and high molecular organic compound, and it is in the majority with acidic materials in sulfur-bearing inorganic compound, in order to process this tail gas, it is made to reach the standard of safety dumping, the present invention has made the vent gas treatment module that can be combined, can according to dissimilar tail gas, different modules is selected to assemble, not only economy but also practical, simultaneously, the invention allows for the vent gas treatment design cycle of modified pitch, involved in the present invention to treatment process comprise: exhaust collection, condensation, spray and filtration, acid-base neutralization, dehydration, burning etc., according to different modified pitch tail gas, concrete treatment process can be determined according to this flow process, select the processing module needed.

Refer to Fig. 1, the treatment process of described modified pitch exhaust treatment system, comprises the following steps:

(1) collect tail gas, and exhaust gas component is analyzed, be divided into Gasification particle according to exhaust gas component, the inorganic compound of steam, sulfur-bearing etc. and high molecular organic compound;

(2) different PROCESS FOR TREATMENT is selected according to exhaust gas component, specific as follows:

A, Gasification particle and steam: the tail gas containing Gasification particle generally all contains steam, for such tail gas, adopt condensing mode to process.In condensing unit, tail gas is first by deceleration and the airflow direction sudden change in reduction of speed district, make larger particle deposition on tank skin, when residual exhaust is by tubular type cooling layer, steam liquefies, simultaneously along with the reduction of temperature and the existence of water droplet, small particle accumulates large particulate gradually, by the tail gas after tubular type cooling floor except particulate district deposition, be progressively enriched in bottom condensing unit, finally discharge from sewage draining exit and collect recycling.

B, inorganic compound: to the tail gas containing inorganic compound, first carry out spray filtering, then acid-base neutralization is carried out, carry out chemical absorbing again, finally carry out dehydration discharge, and before discharging the material of discharging is detected, determine whether to reach discharge standard, if defective, re-start acid-base neutralization, chemical absorbing in different ways, dehydration, discharge after reaching discharge standard.

C, organic compound: to the tail gas containing organic compound, by condensation process cooling reduction, dehydration, make it reach emission request; The organic compound of or not easily condensation lower for gasification temperature, is needed to be processed by burning, if the organic matter of sulfur-bearing, nitrogen etc., also needs according to step b process after burning.

D, when in tail gas containing in Gasification particle, inorganic compound and organic compound arbitrarily two or more material time, be combined according to step a, b, c treatment process to various material.As when containing oil content particulate, inorganic compound and organic compound in tail gas simultaneously, the treatment process such as condensation, spray filtering, acid-base neutralization, chemical absorbing, dehydration and burning can be selected.

In actual application, according to the difference of smoke components, for one or more in Gasification particle, steam, organic matter three kinds of materials, process by links such as condensation, spray filtering, dehydrations, if containing organic matter, and when concentration is higher, need be decomposed it by burning link, for only containing, for example the tail gas of the Inorganic chemical substance such as sulfide, nitride, can be completed by spray filtering, acid-base neutralization and dehydration.In Fig. 1, the general entirety of dotted box portion is selected.

System cloud gray model comprises:

1) vent gas treatment

In system operation, realize the directed flow of tail gas mainly through the negative-pressure air fan 17 after dewater unit 2.Under the effect of system negative pressure, the tail gas collected is by exhaust pipe road 20, connector 18 is exported through tail gas, inlet exhaust gas A21, be drawn onto in condensing unit 15, in condensation tank body 28, pass through interlayer, tail gas transfers heat to refrigerant, exhaust temperature moment is reduced to less than 60 DEG C from more than 160 DEG C, the material of the most high-temperature gasifications in tail gas and steam, by cooling, condensation, be returned to liquid or solid-state, due to the sudden change of tail gas flow velocity and flow direction, isolated liquid state and solid matter stick to interlayer wall, drop to the bottom of condensation tank body 28 under gravity, then regular discharge from sewage draining exit A27 is reclaimed.Through the tail gas of condensation process from the offgas outlet A26 of condensing unit 15, the inlet exhaust gas B46 of tail gas spray filter 6 enters into bottom tail gas spray filter 6, under the effect of gas dispersion apparatus 30, be dispersed into little bubble in a liquid, rise rapidly with after liquid first set reaction, at this moment, the gas that gas source inlet 44 and stoste import 43 are carried and reagent, by atomizer 35, reagent even spraying is gone out, fully contact with tail gas, realize the continuation cooling of tail gas, remove the object of some chemical substances, complete the one-level cleaning of tail gas.After tail gas enters container 33 from inlet exhaust gas B46, passage amplifies several times suddenly, and flow velocity slows down greatly, is also conducive to the spraying of reagent and the abundant haptoreaction of tail gas.Flowed to reduction pond 13 by pollutants such as the particulates that water smoke is laid by leakage fluid dram A32, pipeline, inlet A73, then complete the process of sewage by the separating reducing of liquid and recycle.Tail gas through one-level cleaning continues up along tail gas spray filter 6, tail gas through primary filter net 37 time, due in net containing portion of reagent stoste, haptoreaction can be realized again and absorb.Afterwards, the reagent of coming from stoste import 43 second half spray primary filter net 37 by washer jet 39, complete the secondary cleaning to tail gas and the cleaning to filter screen and change liquid.By secondary cleaning, remain particulate in tail gas and organic chemistry material has cleaned.Cleaned tail gas dewatered by secondary filter net 40, enter into dewater unit 2 via offgas outlet B41, gas feed 58.

After tail gas enters dehydration tank body 49 by gas feed 58, enter dehydration tank body 49 central authorities through centrifugal network 50, cavernous body 51.When through cavernous body 51, the moisture in tail gas sticks on cavernous body 51, simultaneously, under the drive of power input shaft 47, under cavernous body 51 is in High Rotation Speed state, the moisture of absorption is thrown to the tank skin of dehydration tank body 49 under the action of the centrifugal, then stay along wall, discharge via discharge outlet 48.Enter the tail gas of dehydration tank body 49 central authorities under the negative pressure that boosting fan blade 52 and negative-pressure air fan 17 are formed promotes, the tail gas of dehydration further, enters into burner 1 through gas vent 56, negative-pressure air fan 17, inlet exhaust gas C59.

In burner 1, the tail gas containing organic substance can through 2 burnings.First under the effect of igniter 69, the combustion gas of extraneous conveying is burnt by gas nozzle matrix 61, form the fiery curtain that length is about 20cm, the combustion adjuvant of combustion adjuvant nozzle matrix 60 ejection mixes with tail gas, complete in the process by fiery curtain and the first time of tail gas is burnt, gas after burning is when the gap by catalytic oxidation layer 64, contact with high temperature material, it is made to reach burning-point instantaneously, complete second time burning, after clean-burning gas is lowered the temperature by temperature descending section device 67, discharge with chimney.The high temperature that burning produces, then absorbed by the conduction oil in heat conduction oil reservoir 63, is connected, recycled by the external world by heat conductive oil inlet 62, conduction oil outlet 68 with extraneous heat-conducting oil system.

2) process of liquid

The process of liquid comprises using of refrigerant and sprays the use of reagent.

The use of refrigerant.Refrigerant is under the effect of refrigerant pump 5 and liquid level flow of water difference, condenser 15 is entered by the road from accumulator tank 3, indirectly heat trnasfer is completed with tail gas in condensation tank body 28, afterwards from refrigerant exit 25, along refrigerant transfer pipeline 24, refrigerant pump 5 enters refrigerant reduction apparatus 4, refrigerant reduction apparatus 4 is bulges of the uniform aperture in some directions, be positioned at above accumulator tank 3, refrigerant in refrigerant reduction apparatus 4 is under the effect of refrigerant pump 5, spray to aerial from aperture and disperse, transfer heat to air, realize the reduction of refrigerant, spraying to aerial refrigerant falls under gravity in accumulator tank 3, complete recycling of refrigerant.Higher system is required for cooling, on the pipeline of refrigerant import 22, cooling device 9 can be installed, refrigerant is cooled further.

The use of spray reagent.First, the medicine added is needed to be transported in the inner bag of stoste tank body 101 by quantitative spiral chemicals dosing plant B97, water is under the control of liquid level 99, also be injected in the inner bag of stoste tank body 101 through water supplement port 95, mix rapidly under the stirring action of agitator B96, after pH checkout gear B93 detection pH value reaches requirement, automatically stop spiral chemicals dosing plant B97, stoste has configured.

The preparation water pump 7 that stoste is connected tail gas spray filter 6 by leakage fluid dram D98 pumps into tail gas spray filter 6 by stoste import 43, sprayed by atomizer 35 and washer jet 39, arrive bottom tail gas spray filter 6, the liquid to be discharged 29 that formation need process, liquid 29 to be discharged, together with the floating thing on liquid upper strata, enters into reduction pond 13 by leakage fluid dram A32, inlet A73.

Enter behind reduction pond 13 until discharging liquid 29, under the obstruct of oil-water separating net 72, floating thing enrichment in net, and flow to waste oil recycling bin 14 by oil drain out 74 and recycle.Liquid through oil-water separating net 72 can through the detection of pH checkout gear A78, when pH value is less than normal, control system can add reduction medicine in dosing filter screen A71 according to setup control spiral chemicals dosing plant A76, and dissolve rapidly under the stirring action of agitator A75, the liquid be reduced in reduction pond 13 enters into sedimentation basin 12 by leakage fluid dram B77, liquid-inlet 82.

If when the temperature-detecting device B79 in reduction pond 13 detects that temperature exceedes setting value, the little water pump 10 above sedimentation basin 12 will circulate to cooling device 9 by pumping liquid, start the cooling piece 86 in cooling device and fan 81 pairs of liquid coolings simultaneously.In cooling device 9, horizontal liquid exhausting pipes 83 successively arranges from top to bottom, and liquid flows back to sedimentation basin 12 from liquid-inlet 82 through horizontal liquid exhausting pipes 83, liquid outlet 84.When cooled liquid-circulating is to reduction pond 13, and when temperature reaches setting value, cooling procedure will stop automatically, minimumly can be controlled in 5 DEG C.

Flow to the liquid of sedimentation basin 12, below baffle plate 90, flow to leakage fluid dram C89, due to from inlet B88 to sedimentation tank body 87, flow channel for liquids is exaggerated decades of times, the flowing of liquid in sedimentation tank body 87 is extremely slowly, and the material being beneficial to the insoluble and water in liquid fully precipitates.After having precipitated, the recovery of ejecting liquid completes, and is got back to again in stoste pond, complete recycling of liquid by leakage fluid dram C89, inlet C94.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.

In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.

Claims (10)

1. a modified pitch exhaust treatment system, it is characterized in that, comprise burner (1), dewater unit (2), accumulator tank (3), refrigerant reduction apparatus (4), tail gas spray filter (6), cooling device (9), stoste pond (11), sedimentation basin (12), reduction pond (13), waste oil recycling bin (14), condensing unit (15), tail gas collecting device (16) and control cabinet, burner (1) is by negative-pressure air fan (17), gas pipeline connects the gas vent (56) of dewater unit (2) top, the gas feed (58) of side, dewater unit (2) bottom connects the offgas outlet B (41) of tail gas spray filter (6) top by gas pipeline, the inlet exhaust gas B (46) of tail gas spray filter (6) below is connected with the offgas outlet A (26) of condensing unit (15), inlet exhaust gas A (21) and the tail gas of tail gas collecting device (16) of condensing unit (15) export connector (18) and are connected, the refrigerant import of the upper side of condensing unit (15) is connected with accumulator tank (3) by pipeline, condensing unit (15) is also connected with refrigerant reduction apparatus (4) by refrigerant pump (5), the discharge outlet (48) of dewater unit (2) bottom is connected with reduction pond (13), the oil drain out (74) of reduction pond (13) is connected with waste oil recycling bin (14), the inlet A (73) of reduction pond (13) is connected by the leakage fluid dram A (32) of liquid line with tail gas spray filter (6) bottom, reduction pond (13) is also connected with sedimentation basin (12), cooling device (9) is installed in the top of sedimentation basin (12), and sedimentation basin (12) side is by cooling device (9), little water pump (10) connects sedimentation basin (12) opposite side, sedimentation basin (12) is also connected with stoste pond (11), pipeline is passed through in stoste pond (11), preparation water pump (7) connects the stoste import (43) of tail gas spray filter (6), the gas source inlet (44) of tail gas spray filter (6) connects air compressor machine (8).

2. modified pitch exhaust treatment system according to claim 1, it is characterized in that, described condensing unit (15) comprises inlet exhaust gas A (21), refrigerant import (22), refrigerant transfer pipeline (24), refrigerant exit (25), offgas outlet A (26), sewage draining exit A (27) and condensation tank body (28); Condensation tank body (28) internal structure comprises reduction of speed district, intensive tubular type lowers the temperature floor, except particulate district, sewage draining exit A (27) is arranged on the below of condensation tank body (28), inlet exhaust gas A (21), refrigerant import (22), refrigerant exit (25), offgas outlet A (26) are arranged on the both sides of condensation tank body (28), refrigerant import (22) is arranged on the top of accumulator tank (3), and refrigerant exit (25) is connected with refrigerant pump (5) by refrigerant transfer pipeline (24).

3. modified pitch exhaust treatment system according to claim 1, it is characterized in that, described tail gas spray filter (6) comprises liquid to be discharged (29), gas dispersion apparatus (30), sewage draining exit B (31), leakage fluid dram A (32), container (33), observation panel (34), atomizer (35), annulus line (36), primary filter net (37), service ports (38), washer jet (39), secondary filter net (40), offgas outlet B (41), stoste import (43), gas source inlet (44), air source control valve (45) and inlet exhaust gas B (46), offgas outlet B (41) is offered in the top of container (33), observation panel (34) is offered in the below of offgas outlet B (41), observation panel (34) below is provided with service ports (38), the first half of container (33) is provided with primary filter net (37), secondary filter net (40), annulus line (36) is arranged on primary filter net (37), the lower position of the position between secondary filter net (40) and primary filter net (37), primary filter net (37), annulus line (36) between secondary filter net (40) is provided with washer jet (39), the annulus line (36) of primary filter net (37) below is provided with atomizer (35), be connected with stoste import (43) at the annulus line (36) in container (33) outside, in primary filter net (37), position between secondary filter net (40) and container (33) outside annulus line (36) on liquid control valve (42) is installed, observation panel (34) is offered in the below of annulus line (36), gas source inlet (44) is connected to the atomizer (35) in container (33) by air source control valve (45), not only need in the bottom of container (33) to discharge liquid (29), also installing gas dispersal device (30), gas dispersion apparatus (30) top arranges leakage fluid dram A (32), container (33) bottom sides arranges sewage draining exit B (31), in the side of container (33) bottom, inlet exhaust gas B (46) is set, and inlet exhaust gas B (46) is higher than liquid to be discharged (29) 100mm-150mm, extend into below the curved feed liquor face of container (33) interior section mouth of pipe 5-10mm, concordant with gas dispersion apparatus (30).

4. modified pitch exhaust treatment system according to claim 1, it is characterized in that, described dewater unit (2) comprises power input shaft (47), discharge outlet (48), dehydration tank body (49), centrifugal network (50), cavernous body (51), boosting fan blade (52), sealing baffle (53), cover (54), bearing (55), gas vent (56), peep hole (57) and gas feed (58), the outside of dehydration tank body (49): gas vent (56) is offered in the top of dehydration tank body (49), peep hole (57) is offered in the side of dehydration tank body (49) top, discharge outlet (48) is offered in the bottom of dehydration tank body (49), and gas feed (58) is offered in the side of dehydration tank body (49) the latter half, the inside of dehydration tank body (49): cover (54) is installed in the side of dehydration tank body (49) top, power input shaft (47) is installed by bearing (55) in the centre of dehydration tank body (49), and power input shaft (47) extends to outside the bottom of dehydration tank body (49), and connect power-equipment, the first half of power input shaft (47) installs boosting fan blade (52), there is sealing baffle (53) both sides of boosting fan blade (52), sealing baffle (53) is arranged on cover (54), centrifugal network (50) is installed in sealing baffle (53) below, centrifugal network (50) is also provided with cavernous body (51).

5. modified pitch exhaust treatment system according to claim 1, it is characterized in that, described burner (1) comprises combustion chamber, temperature descending section device (67) and heat conduction oil reservoir (63), and combustion chamber comprises combustion adjuvant nozzle matrix (60), gas nozzle matrix (61), catalytic oxidation layer (64) and igniter (69), temperature descending section device (67) top arranges offgas outlet C (66), the connection combustion chamber, below of temperature descending section device (67), the skin of combustion chamber is heat conduction oil reservoir (63), temperature-detecting device A (65) is installed in the side of heat conduction oil reservoir (63), and offer heat conductive oil inlet (62) and conduction oil in the both sides of heat conduction oil reservoir (63) respectively and export (68), the centre of combustion chamber is provided with catalytic oxidation layer (64), igniter (69) is installed in the below of catalytic oxidation layer (64), combustion adjuvant nozzle matrix (60) and gas nozzle matrix (61), inlet exhaust gas C (59) is offered in the below of combustion chamber.

6. modified pitch exhaust treatment system according to claim 1, it is characterized in that, described reduction pond (13) comprises reduction casing (70), dosing filter screen A (71), oil-water separating net (72), agitator A (75), spiral chemicals dosing plant A (76), pH checkout gear A (78) and temperature-detecting device B (79), the inside of reduction casing (70): install dosing filter screen A (71) in the middle of reduction casing (70), agitator A (75) is arranged in dosing filter screen A (71), oil-water separating net (72) is arranged on the side of dosing filter screen A (71), and be located at inlet A (73), one side of oil drain out (74), the outside of reduction casing (70): reduction casing (70) is installed dosing filter screen A (71) side and installed inlet A (73) and oil drain out (74), inlet A (73) is near oil-water separating net (72) the latter half, oil drain out (74) is arranged on top, concordant with liquid level, leakage fluid dram B (77) is arranged on the opposite side of reduction casing (70), a little less than oil drain out (74), sewage draining exit C (80) is arranged on the bottom of reduction casing (70), pH checkout gear A (78) and temperature-detecting device B (79) are also installed in the side of reduction casing (70), spiral chemicals dosing plant A (76) is installed in the top of reduction casing (70), device outlet is facing to dosing filter screen A (71) the inside.

7. modified pitch exhaust treatment system according to claim 1, it is characterized in that, described cooling device (9) comprises fan (81), horizontal liquid exhausting pipes (83), circular fan housing (85) and cooling piece (86); It is inner that fan (81), horizontal liquid exhausting pipes (83) and cooling piece (86) are installed in circular fan housing (85), fan (81) is in the side of circular fan housing (85), all the other are at opposite side, the top of horizontal liquid exhausting pipes (83) arranges liquid-inlet (82), the below of horizontal liquid exhausting pipes (83) arranges liquid outlet (84), post cooling piece (86) respectively at the upper and lower of horizontal liquid exhausting pipes (83), quantity is according to system radiating amount reasonable Arrangement.

8. modified pitch exhaust treatment system according to claim 1, is characterized in that, described sedimentation basin (12) comprises sedimentation tank body (87) and baffle plate (90); The both sides of sedimentation tank body (87) offer inlet B (88), leakage fluid dram C (89) and sewage draining exit D (91), in the middle of sedimentation tank body (87), baffle plate (90) is installed, inlet B (88) is lower than the leakage fluid dram B (77) of reduction pond (13), and leakage fluid dram C (89) is a little less than inlet B (88).

9. modified pitch exhaust treatment system according to claim 1, it is characterized in that, described stoste pond (11) comprises temperature-detecting device C (92), pH checkout gear B (93), agitator B (96), spiral chemicals dosing plant B (97), liquid level (99), stoste tank body (100) and dosing filter screen B (101), the both sides of stoste tank body (100) offer inlet C (94), leakage fluid dram D (98), sewage draining exit E (102) respectively, temperature-detecting device C (92), pH checkout gear B (93) is arranged on stoste tank body (100) middle part up and down, inlet C (94) is lower than the leakage fluid dram C (89) of sedimentation basin (12), the water supplement port (95) that stoste tank body (100) top is offered connects tap water pipe line, rectify dosing filter screen B (101) inner under water supplement port (95), in the middle of dosing filter screen B (101), agitator B (96) is installed, spiral chemicals dosing plant B (97) is also installed in the top of stoste tank body (100), outlet is inner facing to dosing filter screen B (101), liquid level (99) is installed at stoste tank body (100) top, liquid level (99) bottom is lower than inlet C (94) certain distance.

10. a treatment process for the modified pitch exhaust treatment system as described in as arbitrary in claim 1-9, is characterized in that, comprise the following steps:

(1) collect tail gas, and exhaust gas component is analyzed, be divided into the inorganic compound of Gasification particle, steam, high molecular organic compound and sulfur-bearing according to exhaust gas component;

(2) different PROCESS FOR TREATMENT is selected according to exhaust gas component, specific as follows:

A, Gasification particle and steam: the tail gas containing Gasification particle contains steam, for such tail gas, adopt condensing mode to process; In condensing unit (15), tail gas is first by deceleration and the airflow direction sudden change in reduction of speed district, make larger particle deposition on tank skin, when residual exhaust is by tubular type cooling layer, steam liquefies, simultaneously along with the reduction of temperature and the existence of water droplet, small particle accumulates large particulate gradually, by the tail gas after tubular type cooling floor except particulate district deposition, be progressively enriched in bottom condensing unit, finally discharge from sewage draining exit and collect recycling;

B, inorganic compound: to the tail gas containing inorganic compound, first carry out spray filtering, then acid-base neutralization is carried out, carry out chemical absorbing again, finally carry out dehydration discharge, and before discharging the material of discharging is detected, determine whether to reach discharge standard, if defective, re-start acid-base neutralization, chemical absorbing, dehydration, discharge after reaching discharge standard;

C, organic compound: to the tail gas containing organic compound, by condensation process cooling reduction, dehydration, make it reach emission request; The organic compound of or not easily condensation lower for gasification temperature, is needed to be processed by burning, if the organic matter of sulfur-bearing, nitrogen, also needs according to step b process after burning;

D, when in tail gas containing in Gasification particle, inorganic compound and organic compound arbitrarily two or more material time, be combined according to step a, b, c treatment process to various material.