CN109848191A - A kind of device of continuous treatment high COD chemical industry dangerous waste with high salt - Google Patents
A kind of device of continuous treatment high COD chemical industry dangerous waste with high salt Download PDFInfo
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- CN109848191A CN109848191A CN201910294262.6A CN201910294262A CN109848191A CN 109848191 A CN109848191 A CN 109848191A CN 201910294262 A CN201910294262 A CN 201910294262A CN 109848191 A CN109848191 A CN 109848191A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
Abstract
The invention discloses a kind of devices of continuous treatment high COD chemical industry dangerous waste with high salt, divide salt system, heating system, auxiliary system, methane utilization system and power-supply device including pretreatment system, aquathermolysis system, the catalytic reforming system, the evaporation of high strong brine, pretreatment system includes material storing tank, metering device, water tank, pretreatment mixing arrangement, high-pressure hydraulic pump, material feed pump；Aquathermolysis system includes hydropyrolysis reactor, gas-solid separator, mixed feeding pump；The catalytic reforming system includes the first-stage reactor being sequentially connected in series, second reactor, third-stage reactor, level four reaction apparatus；A high strong brine evaporation point salt system includes brine tank, brine pump, vaporization chamber, heat exchanger；Heating system includes heating jacket one, heating jacket two, and auxiliary system includes inert gas holding vessel and inert gas pump；Methane utilization system includes the methane recovery device successively mutually contacted with heating jacket one, heating jacket two and level four reaction apparatus.
Description
Technical field
The invention belongs to chemical industry dangerous waste processing technology fields, and in particular to a kind of continuous treatment high COD chemical industry danger with high salt
Useless device.
Background technique
Chemical industry dangerous waste refers to the solid generated in chemical production process, semisolid or pulpous state waste, including Chemical Manufacture
The substandard product generated in chemical reaction processes or intermediate product, by-product, the useless catalysis such as decomposed, synthesized in the process
Agent, useless additive, unreacting material and raw material impurity etc., also include directly be discharged from reaction unit or product hang system, point
From, washing when by related device discharge waste and air pollution control facility discharge dust, wastewater treatment process generate
Sludge, the solid waste that generates of overhaul of the equipments and accident leakage etc..
Chemical industry dangerous waste has following features: (1) yield is larger.Chemical industry dangerous waste accounts for entire industrial dangerous waste and generates total amount
30% or more；(2) type is more, and levels of toxic substances is high, big to human health and environmental hazard.There is considerable part in chemical industry dangerous waste
Have the characteristics that anxious toxicity, reactivity, corrosivity can constitute larger threat to human health and environment, if cannot effectively locate
It sets, it will human body and environment are affected greatly.(3) recycling potentiality are big.Having quite a few in chemical industry dangerous waste is reaction
Raw material and by-product, valuable substance can be recycled by technical treatment appropriate.Therefore, effective realizationization
Work dangerous waste is innoxious, recycling and energy, and to improving, prevention and cure of pollution are horizontal and industrial economy benefit plays a significant role.
Burning and Landfill are mainly taken for the device of such waste treatment at present.However incineration technology handles this
When class hazardous waste, have the following problems: (1) under high temperature fused state, rotary kiln scale formation is serious, and thermal effect reduces obvious；
(2) equipment corrosion phenomenon is very serious；(3) most of is that can generate a large amount of dioxin containing villaumite when burning, cause secondary dirt
Dye；(4) most of such dangerous waste exists in the form of hygrometric state, causes incineration method energy consumption higher.When security landfill handles such dangerous waste,
There are the following problems: (1) needing rigid landfill yard, project cost is high；(2) land occupation area is big；(3) a large amount of height can be generated
COD, high saliferous percolate can not be handled.
Summary of the invention
For defect and deficiency existing for above-mentioned dangerous waste disposal plant technology, the present invention provides a kind of economical, efficient, practical
Continuous treatment high COD chemical industry dangerous waste with high salt device.
The technical solution of the present invention is as follows: a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt, including pretreatment system
System, the evaporation of aquathermolysis system, the catalytic reforming system, high strong brine divide salt system, heating system, auxiliary system, methane comprehensive benefit
With system and power-supply device,
Pretreatment system include material storing tank, metering device, water tank, pretreatment mixing arrangement, high-pressure hydraulic pump, material into
Material pump, material storing tank are connected with metering device, and metering device is connected to pretreatment mixing arrangement by product pump, and water tank passes through
High-pressure hydraulic pump is connected to pretreatment mixing arrangement, is equipped with blender in pretreatment mixing arrangement；
Aquathermolysis system includes hydropyrolysis reactor, gas-solid separator, mixed feeding pump, and pretreatment mixing arrangement passes through mixed
It closes feed pump and is connected to hydropyrolysis reactor, gas-solid separator passes through the top phase of pyrolysis gas delivery pipe and hydropyrolysis reactor
Even；
The catalytic reforming system includes the first-stage reactor being sequentially connected in series, second reactor, third-stage reactor, fourth-order reaction
Device, the upper end of first-stage reactor are connected with the gas vent of gas-solid separator；
A high strong brine evaporation point salt system includes brine tank, brine pump, vaporization chamber, heat exchanger, and brine tank is anti-with aquathermolysis
Device bottom is answered to be connected, vaporization chamber is located above brine tank, and inclined plate is equipped in vaporization chamber, is laid with stomata and projecting apertures on inclined plate, tiltedly
Circulating pump is equipped in vaporization chamber below plate, the vaporization chamber side wall above inclined plate is equipped with small-sized fan, and heat exchanger passes through pipeline
It is connected to above vaporization chamber, heat exchanger is connected by brine pump with brine tank；
Heating system includes heating jacket one and heating jacket two, and the outside of water tank, heating folder is arranged in heating jacket one
The outside of pretreatment mixing arrangement is arranged in set two；
Auxiliary system includes inert gas holding vessel and inert gas pump, and inert gas holding vessel is pumped by inert gas will
Inert gas is sent to pretreatment mixing arrangement and hydropyrolysis reactor, for excluding in pretreatment hydrolysis catalytic reforming process device
Oxygen；
Methane utilization system includes successively mutually contacting with heating jacket one, heating jacket two and level four reaction apparatus
Methane recovery device；
Power-supply device is all system power supplies.
Further, temperature-detecting device one and pressure-detecting device one are equipped in pretreatment mixing arrangement.
Further, tubulation is equipped in hydropyrolysis reactor, material is thermally decomposed in tubulation, baffle is equipped between tubulation,
Guarantee heat source between tubulation flow process without dead angle.
Alternatively, hydropyrolysis reactor includes reactor tank, shell and tube heat exchange jacket, aeration stirring bar, stirring
The outside of reactor tank is arranged in motor, sealing bearing, shell and tube heat exchange jacket, and the top of reactor tank is arranged in stirring motor, close
Envelope bearing is arranged in the bottom of reactor tank, aeration stirring bar inner hollow, is transversely provided with 8 stirring cross bars on aeration stirring bar,
The distal end for stirring cross bar is equipped with aeration nozzle, and the upper end of aeration stirring bar is connected at the top of reactor tank with stirring motor, and aeration stirs
The lower end for mixing bar is connected through reaction pot bottom with sealing bearing upper end, and sealing bearing lower end is pumped by inert gas and indifferent gas
Body holding vessel is connected, and sealing bearing lower end also passes through high-pressure hydraulic pump two and is connected with water tank.While the rotation of aeration stirring bar, from
Aeration stirring bar bottom is passed through inert gas, and make its from aeration nozzle spray, to material carry out aeration stirring, prevent its occur by
It is hot uneven, and the air-flow of inert gas can carry out 360 degree of high pressures to reaction top tank structure and wash away, and prevent material in reaction tank skin hair
Raw adhesion, after use, can also be drawn water to aeration stirring bar bottom from water tank by high-pressure hydraulic pump two, make high pressure water flow from exposure
Gas nozzle sprays, and can be used for being rinsed reactor tank.
Further, temperature-detecting device two and pressure-detecting device two are additionally provided in hydropyrolysis reactor.
Further, the outside of inert gas holding vessel is equipped with heating jacket three, and heating jacket three is connected on heating jacket
Between two and level four reaction apparatus.The waste-heat that inert gas in inert gas holding vessel is utilized to methane is being passed through aeration
Aeration stirring is carried out in stirring rod, and the thermal efficiency of material in reactor tank can be improved.
Further, the pipeline between gas-solid separator and hydropyrolysis reactor is equipped with counterbalance valve and regulating valve.
Further, first-stage reactor, second reactor, third-stage reactor, level four reaction apparatus are tubular reactor, pipe
The middle part of formula reactor is equipped with round reaction chamber, extends transversely through in round reaction chamber and is provided with rotation axis, rotation axis external connection
There is driving motor, rotation axis is equipped with 6 blade boxes, and blade box is provided with catalyst.Gas is walked from top to bottom, and rotation axis is then inverse
Hour hands are rotating to be contacted with gas, and the contact area of gas and catalyst both can be improved, and can also prevent gas from flowing
It is unsmooth.
Further, in the corresponding blade box of first-stage reactor, second reactor, third-stage reactor, level four reaction apparatus
Catalyst be respectively that active carbon aluminium-nickel-cobalt magnetic catalyst, attapulgite nickel-base catalyst, ferrochrome fiber catalyst, nanometer are Ni-based
Catalyst.
Compared with prior art, the invention has the benefit that
(1) present invention makes organic matter react decomposition and inversion with water using aquathermolysis technology under conditions of high temperature and pressure
The energy substances such as liquid fuel or gaseous fuel.Compared with mainly taking the method for burning and landfill at present, reaction is original with water
Material, wet stock do not need drying, save the energy, react thoroughly, caused by not will lead to because of organic substance residues under high-temperature and high-pressure conditions
Secondary pollution problems, while being conducive to promote subsequent salt and recycling to obtain the quality of product.
(2) it in catalytic reforming process of the present invention, under the action of the proprietary catalyst of each stage reactors, can effectively go
Except impurity useless in cracking gas, influential on methanation catalyst, and a variety of low carbon compounds and water are subjected to reformation conjunction
At the methane gas with higher utility value.The methane gas of generation can be used as the energy of system operation, it is extra can with electricity,
It is sold outside steam or natural gas form.
(3) low-temperature evaporation that the present invention uses is by special device structure, and the liquid film quickly flowed can evaporate
Cause very low negative pressure in the stomata in indoor inclined plate face, only a small-sized fan can boost one huge air-flow across water
Film, to generate a very big exchange surface between gas and liquid.When liquid flows downward along inclined plate, due to cavitation erosion
Slight negative pressure can be generated in a downward direction, there is much prominent holes on the surface of inclined plate so that under plate gas permeable plate hole into
Liquid is drawn into bubble when entering the liquid of flowing, the time of gas-liquid contact is enough that gas is made to become saturated vapor.
In short, the present invention with efficient process high COD dangerous waste with high salt and can will not generate secondary pollution, the salt of generation is free of
Organic matter；The water that reaction needs can recycle, not outlet；Organic matter can become clean energy resource after decomposing, and sufficiently realize
Chemical industry dangerous waste recycling.
Detailed description of the invention
Fig. 1 is the single unit system schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the single unit system schematic diagram of the embodiment of the present invention 2；
Fig. 3 is the structural schematic diagram of the hydropyrolysis reactor in the embodiment of the present invention 2；
Fig. 4 is the structural schematic diagram of Example 1 and Example 2 of the present invention middle swash plate；
Fig. 5 is the partial structural diagram of the hydropyrolysis reactor in the embodiment of the present invention 1；
Fig. 6 is the external structure schematic diagram of tubular reactor in Example 1 and Example 2 of the present invention；
Fig. 7 is the schematic diagram of internal structure of tubular reactor in Example 1 and Example 2 of the present invention；
Wherein, 1- material storing tank, 2- metering device, 3- water tank, 4- pre-process mixing arrangement, 5- high-pressure hydraulic pump, 6- object
Expect feed pump, 7- blender, 8- hydropyrolysis reactor, 9- gas-solid separator, 10- mixed feeding pump, 11- first-stage reactor, 12-
Second reactor, 13- third-stage reactor, 14- level four reaction apparatus, 15- brine tank, 16- brine pump, 17- vaporization chamber, 18- heat exchange
Device, 19- inclined plate, 20- stomata, 21- circulating pump, 22- heating jacket one, 23- heating jacket two, 24- inert gas holding vessel,
25- inert gas pump, 26- temperature-detecting device one, 27- pressure-detecting device one, 28- tubulation, 29- baffle, 30- reactor tank,
31- shell and tube heat exchange jacket, 32- aeration stirring bar, 33- stirring motor, 34- seal bearing, 35- high-pressure hydraulic pump two, 36- temperature
Detection device two, 37- pressure-detecting device two, 38- heating jacket three, 39- counterbalance valve, 40- regulating valve, 41- circle reaction chamber,
42- rotation axis, 43- driving motor, 44- blade box, 45- projecting apertures, 46- small-sized fan, 47- methane recovery device, 48- stirring are horizontal
Bar, 49- aeration nozzle.
Specific embodiment
1-7 illustrates a specific embodiment of the invention with reference to the accompanying drawing, but implementation and guarantor of the invention
It protects without being limited thereto.
Embodiment 1
As shown in Figure 1, a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt, including pretreatment system, aquathermolysis
System, the catalytic reforming system, the evaporation of high strong brine divide salt system, heating system, auxiliary system, methane utilization system and electricity
Source device,
Pretreatment system include material storing tank 1, metering device 2, water tank 3, pretreatment mixing arrangement 4, high-pressure hydraulic pump 5,
Material feed pump 6, material storing tank 1 are connected with metering device 2, and metering device 2 is connected to pretreatment mixing dress by product pump 6
4 are set, water tank 3 is connected to pretreatment mixing arrangement 4 by high-pressure hydraulic pump 5, is equipped with blender 7 in pretreatment mixing arrangement 4；
Aquathermolysis system includes hydropyrolysis reactor 8, gas-solid separator 9, mixed feeding pump 10, pre-processes mixing arrangement 4
It is connected to hydropyrolysis reactor 8 by mixed feeding pump 10, gas-solid separator 9 is connected to the top of hydropyrolysis reactor 8；Such as figure
Shown in 5, tubulation 28 is equipped in hydropyrolysis reactor 8, material is thermally decomposed in tubulation 28, and baffle 29 is equipped between tubulation 28, is protected
Heat source is demonstrate,proved in 28 flow process of tubulation without dead angle.It pre-processes and is equipped with temperature-detecting device 1 and pressure inspection in mixing arrangement 4
Survey device 1.Temperature-detecting device 2 36 and pressure-detecting device 2 37 are additionally provided in hydropyrolysis reactor 8.Gas-solid separator
Pipeline between 9 and hydropyrolysis reactor 8 is equipped with counterbalance valve 39 and regulating valve 40.
The catalytic reforming system includes the first-stage reactor 11, second reactor 12, third-stage reactor 13, level Four being sequentially connected in series
The upper end of reactor 14, first-stage reactor 11 is connected with the gas vent of gas-solid separator 9；As shown in fig. 6-7, first-stage reactor
11, second reactor 12, third-stage reactor 13, level four reaction apparatus 14 are tubular reactor, and the middle part of tubular reactor is equipped with
Round reaction chamber 41 extends transversely through in round reaction chamber 41 and is provided with rotation axis 42, and rotation axis 42 is externally connected to driving motor
43, rotation axis 42 is equipped with 6 blade boxes 44, and blade box 44 is provided with catalyst.Gas is walked from top to bottom, and rotation axis 42 is then inverse
Hour hands are rotating to be contacted with gas, and the contact area of gas and catalyst both can be improved, and can also prevent gas from flowing
It is unsmooth.Wherein, first-stage reactor 11, second reactor 12, third-stage reactor 13, in the corresponding blade box 44 of level four reaction apparatus 14
Catalyst be respectively that active carbon aluminium-nickel-cobalt magnetic catalyst, attapulgite nickel-base catalyst, ferrochrome fiber catalyst, nanometer are Ni-based
Catalyst.
A high strong brine evaporation point salt system includes brine tank 15, brine pump 16, vaporization chamber 17, heat exchanger 18, brine tank 15
It is connected with 8 bottom of hydropyrolysis reactor, vaporization chamber 17 is located at 15 top of brine tank, inclined plate 19 is equipped in vaporization chamber 17, such as Fig. 4 institute
Show, stomata 20 and projecting apertures 45 are laid on inclined plate 19, circulating pump 21,19 top of inclined plate are equipped in the vaporization chamber 17 of 19 lower section of inclined plate
17 side wall of vaporization chamber be equipped with small-sized fan 46, heat exchanger 18 is connected to the top of vaporization chamber 17 by pipeline, and heat exchanger 18 leads to
Brine pump 16 is crossed to be connected with brine tank 15；
Heating system includes heating jacket 1 and heating jacket 2 23, and the outside of water tank 3 is arranged in heating jacket 1,
The outside of pretreatment mixing arrangement 4 is arranged in heating jacket 2 23；
Auxiliary system includes inert gas holding vessel 24 and inert gas pump 25, and inert gas holding vessel 24 passes through indifferent gas
Body pump 25 send inert gas to pretreatment mixing arrangement 4 and hydropyrolysis reactor 8, for excluding pretreatment hydrolysis catalytic reforming
Oxygen in process unit；
Methane utilization system include successively with 14 phase of heating jacket 1, heating jacket 2 23 and level four reaction apparatus
The methane recovery device 47 of series winding；
Power-supply device is all system power supplies.
The working method of the present embodiment are as follows:
Pretreatment: supplied materials initially enters material storing tank 1, then after being measured by metering device 2, is led to by material feed pump 6
Piping is sent into pretreatment mixing arrangement 4, and water feeds the water into pretreatment mixing arrangement 4, starting by high-pressure hydraulic pump 5 in water tank 3
Blender 7 after mixing by water and material passes through the tubulations 28 that mixed feeding pump 10 enters hydropyrolysis reactors 8；
Hydrothermal decomposition: control internal temperature is 300 DEG C, pressure 20MPa, reaction time 105min, organic more than 99%
Object decomposition gasification opens regulating valve 40, and the Pintsch process gas of formation is separated by gas-solid separator 9, by consolidating for cracking gas entrainment
State substance will be separated；
Catalytic reforming: Pintsch process pneumatic transmission enters 11 top of first-stage reactor, in the catalysis of active carbon aluminium-nickel-cobalt magnetic catalyst
Under effect, the substance to the toxic effect of catalytic reforming is removed, then enter in second reactor 12 from bottom, in attapulgite
Under the action of nickel-base catalyst will likely more carbon compound decompositions such as existing C2, C3, after forming single carbon compound, then be passed through three
Stage reactor 13, gas under the action of ferrochrome fiber catalyst by gaseous mixture carbon compound and water react, recycle-water
In hydrogen, the mixed gas after reaction enters level four reaction apparatus 14, will be in gaseous mixture absolutely under the action of nanometer nickel-base catalyst
Most of carbon and hydrogen synthesize methane.Final high temperature methane gas passes sequentially through heating jacket 2 23 and heating jacket 1, by it
In partial heat recycling, improve the temperature in pretreatment mixing arrangement 4 and water tank 3, while reducing the temperature of methane gas, finally
It is sent into methane recovery device 47；
Low-temperature evaporation: high COD chemical industry hazardous waste with high salt is after 8 decomposing organic matter of hydropyrolysis reactor, remaining salt
In the form of a solution enter brine tank 15, by brine pump 16 by salt water send to heat exchanger 18 be heated to require temperature after, hot salt brine
Being entered in vaporization chamber 17 by pipeline, and salt water is evenly arranged on inclined plate 19 by circulating pump 21, salt water is dynamic along 19 surface current of inclined plate,
In the projecting apertures 45 by being distributed on inclined plate 19, the wind that small-sized fan 46 introduces is formed micro- herein by contacting with stomata 20
Liquid is drawn into bubble by negative pressure, negative pressure, and the time of gas-liquid contact is enough that gas is made to become saturated vapor discharge, recycles saliferous knot
It is brilliant.
The TVOC value for detecting the methane that the present embodiment generates is 0.05ppm, using calcination method to the saliferous knot of the present embodiment
Organic matter containing ratio in crystalline substance is 0.00%.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, the difference is that:
(1) as shown in figure 3, hydropyrolysis reactor 8 include reactor tank 30, shell and tube heat exchange jacket 31, aeration stirring bar 32,
The outside of reactor tank 30 is arranged in stirring motor 33, sealing bearing 34, shell and tube heat exchange jacket 31, and stirring motor 33 is arranged anti-
The top of tank 30 is answered, the bottom of reactor tank 30,32 inner hollow of aeration stirring bar, aeration stirring bar 32 is arranged in sealing bearing 34
On be transversely provided with 8 stirring cross bars 48, the distal end of stirring cross bar 48 is equipped with aeration nozzle 49, and the upper end of aeration stirring bar 32 is through anti-
30 top of tank is answered to be connected with stirring motor 33, the lower end of aeration stirring bar 32 is through 30 bottom of reactor tank and sealing 34 upper end of bearing
It is connected, sealing 34 lower end of bearing is connected by inert gas pump 25 with inert gas holding vessel 24, and sealing 34 lower end of bearing is also logical
High-pressure hydraulic pump 2 35 is crossed to be connected with water tank 3.While aeration stirring bar 32 rotates, inertia is passed through from 32 bottom of aeration stirring bar
Gas, and spray it from aeration nozzle 49, aeration stirring is carried out to material, prevents it from uneven heating, and inert gas occurs
Air-flow can carry out 360 degree of high pressures to 30 inner wall of reactor tank and wash away, prevent material from sticking together in 30 wall of reactor tank, using finishing
Afterwards, it can also be drawn water from water tank 3 to 32 bottom of aeration stirring bar by high-pressure hydraulic pump 2 35, spray high pressure water flow from aeration nozzle 49
Out, can be used for being rinsed reactor tank 30.
(2) as shown in Fig. 2, the outside of inert gas holding vessel 24 is equipped with heating jacket 3 38, heating jacket 3 38 is connected
Between heating jacket 2 23 and level four reaction apparatus 14.Inert gas in inert gas holding vessel 24 is utilized to the waste heat of methane
Heating, carries out aeration stirring being passed through in aeration stirring bar 32, the thermal efficiency of material in reactor tank 30 can be improved.
The working method of the present embodiment are as follows:
Pretreatment: supplied materials initially enters material storing tank 1, then after being measured by metering device 2, is led to by material feed pump 6
Piping is sent into pretreatment mixing arrangement 4, and water feeds the water into pretreatment mixing arrangement 4, starting by high-pressure hydraulic pump 5 in water tank 3
Blender 7 after mixing by water and material passes through the reactor tanks 30 that mixed feeding pump 10 enters hydropyrolysis reactors 8；
Hydrothermal decomposition: being passed through inert gas from 32 bottom of aeration stirring bar, and make its from aeration nozzle 49 spray, to material into
Row aeration stirring prevents it from uneven heating occurs, and the air-flow of inert gas can carry out 360 degree of high pressures to 30 inner wall of reactor tank
It washes away, prevents material from sticking together in 30 wall of reactor tank, control internal temperature is 400 DEG C, pressure 20MPa, and the reaction time is
105min opens regulating valve 40 more than 99% organic matter decomposition gasification, and the Pintsch process gas of formation is divided by gas-solid separator 9
From, by cracking gas carry secretly solid matter will be separated；
Catalytic reforming: Pintsch process pneumatic transmission enters 11 top of first-stage reactor, in the catalysis of active carbon aluminium-nickel-cobalt magnetic catalyst
Under effect, the substance to the toxic effect of catalytic reforming is removed, then enter in second reactor 12 from bottom, in attapulgite
Under the action of nickel-base catalyst will likely more carbon compound decompositions such as existing C2, C3, after forming single carbon compound, then be passed through three
Stage reactor 13, gas under the action of ferrochrome fiber catalyst by gaseous mixture carbon compound and water react, recycle-water
In hydrogen, the mixed gas after reaction enters level four reaction apparatus 14, will be in gaseous mixture absolutely under the action of nanometer nickel-base catalyst
Most of carbon and hydrogen synthesize methane.Final high temperature methane gas passes sequentially through heating jacket 3 38, heating jacket 2 23 and heating
Collet 1 recycles partial heat therein, improves in inert gas holding vessel 24, pretreatment mixing arrangement 4 and water tank 3
Temperature, while the temperature of methane gas is reduced, finally it is sent into methane recovery device 47；Inert gas in inert gas holding vessel 24
Using the waste-heat of methane, carry out aeration stirring being passed through in aeration stirring bar 32, can be improved material in reactor tank 30 by
The thermal efficiency.
Low-temperature evaporation: high COD chemical industry hazardous waste with high salt is after 8 decomposing organic matter of hydropyrolysis reactor, remaining salt
In the form of a solution enter brine tank 15, by brine pump 16 by salt water send to heat exchanger 18 be heated to require temperature after, hot salt brine
Being entered in vaporization chamber 17 by pipeline, and salt water is evenly arranged on inclined plate 19 by circulating pump 21, salt water is dynamic along 19 surface current of inclined plate,
In the projecting apertures 45 by being distributed on inclined plate 19, the wind that small-sized fan 46 introduces is formed micro- herein by contacting with stomata 20
Liquid is drawn into bubble by negative pressure, negative pressure, and the time of gas-liquid contact is enough that gas is made to become saturated vapor discharge, recycles saliferous knot
It is brilliant.
The TVOC value for detecting the methane that the present embodiment generates is 0.03ppm, using calcination method to the saliferous knot of the present embodiment
Organic matter containing ratio in crystalline substance is 0.00%.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt, which is characterized in that including pretreatment system, aquathermolysis
System, the catalytic reforming system, the evaporation of high strong brine divide salt system, heating system, auxiliary system, methane utilization system and electricity
Source device,
The pretreatment system includes material storing tank (1), metering device (2), water tank (3), pretreatment mixing arrangement (4), height
Water pump (5), material feed pump (6), the material storing tank (1) are connected with metering device (2), and metering device (2) passes through institute
It states product pump (6) and is connected to the pretreatment mixing arrangement (4), the water tank (3) is connected to pre- by the high-pressure hydraulic pump (5)
It handles mixing arrangement (4), is equipped with blender (7) in pretreatment mixing arrangement (4)；
The aquathermolysis system includes hydropyrolysis reactor (8), gas-solid separator (9), mixed feeding pump (10), pretreatment mixing
Device (4) is connected to hydropyrolysis reactor (8) by mixed feeding pump (10), and the gas-solid separator (9) passes through pyrolysis
Gas delivery pipe is connected with the top of hydropyrolysis reactor (8)；
The catalytic reforming system includes the first-stage reactor (11) being sequentially connected in series, second reactor (12), third-stage reactor
(13), the upper end of level four reaction apparatus (14), the first-stage reactor (11) is connected with the gas vent of gas-solid separator (9)；
The high strong brine evaporation point salt system includes brine tank (15), brine pump (16), vaporization chamber (17), heat exchanger (18),
The brine tank (15) is connected with hydropyrolysis reactor (8) bottom, and the vaporization chamber (17) is located above brine tank (15), evaporation
Inclined plate (19) are equipped in room (17), are laid with stomata (20) and projecting apertures (45), the steaming below inclined plate (19) on the inclined plate (19)
It sends out in room (17) and is equipped with circulating pump (21), vaporization chamber (17) side wall above inclined plate (19) is equipped with small-sized fan (46), described
Heat exchanger (18) is connected to above vaporization chamber (17) by pipeline, and heat exchanger (18) passes through the brine pump (16) and brine tank
(15) it is connected；
The heating system includes heating jacket one (22) and heating jacket two (23), and the heating jacket one (22) is arranged in water
The outside of case (3), heating jacket two (23) setting is in the outside of pretreatment mixing arrangement (4)；
The auxiliary system includes inert gas holding vessel (24) and inert gas pump (25), the inert gas holding vessel (24)
Inert gas is sent to pretreatment mixing arrangement (4) and hydropyrolysis reactor (8), for arranging by inert gas pump (25)
Except the oxygen in pretreatment hydrolysis catalytic reforming process device；
The methane utilization system include successively with heating jacket one (22), heating jacket two (23) and level four reaction apparatus
(14) methane recovery device (47) mutually contacted；
The power-supply device is all system power supplies.
2. a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt as described in claim 1, which is characterized in that described
It pre-processes and is equipped with temperature-detecting device one (26) and pressure-detecting device one (27) in mixing arrangement (4).
3. a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt as described in claim 1, which is characterized in that described
Tubulation (28) are equipped in hydropyrolysis reactor (8), are equipped with baffle (29) between tubulation (28).
4. a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt as described in claim 1, which is characterized in that described
Hydropyrolysis reactor (8) includes reactor tank (30), heat exchange jacket (31), stirring rod (32), stirring motor (33), sealing bearing
(34), shell and tube heat exchange jacket (31) setting exists in the outside of the reactor tank (30), stirring motor (33) setting
The top of reactor tank (30), sealing bearing (34) setting is in the bottom of reactor tank (30), the aeration stirring bar (32)
Portion is hollow, and 8 stirring cross bars (48) are transversely provided on aeration stirring bar (32), and the distal end of stirring cross bar (48) is equipped with aeration
The upper end of mouth (49), aeration stirring bar (32) is connected at the top of reactor tank (30) with stirring motor (33), aeration stirring bar
(32) lower end is connected through reactor tank (30) bottom with sealing bearing (34) upper end, and sealing bearing (34) lower end passes through lazy
Property gas pump (25) be connected with the inert gas holding vessel (24), sealing bearing (34) lower end also pass through high-pressure hydraulic pump two (35)
It is connected with the water tank (3).
5. a kind of device of the high COD chemical industry dangerous waste with high salt of continuous treatment as described in claim 3 or 4, which is characterized in that institute
It states in hydropyrolysis reactor (8) and is additionally provided with temperature-detecting device two (36) and pressure-detecting device two (37).
6. a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt as claimed in claim 4, which is characterized in that described
The outside of inert gas holding vessel (24) is equipped with heating jacket three (38), and the heating jacket three (38) is connected on the heating folder
It covers between two (23) and the level four reaction apparatus (14).
7. a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt as described in claim 1, which is characterized in that described
Pipeline between gas-solid separator (9) and the hydropyrolysis reactor (8) is equipped with counterbalance valve (39) and regulating valve (40).
8. a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt as described in claim 1, which is characterized in that described
Counterbalance valve (39) and regulating valve (40) are equipped between gas-solid separator (9) and the hydropyrolysis reactor (8).
9. a kind of device of continuous treatment high COD chemical industry dangerous waste with high salt as described in claim 1, which is characterized in that described
First-stage reactor (11), second reactor (12), third-stage reactor (13), level four reaction apparatus (14) are tubular reactor, institute
The middle part for stating tubular reactor is equipped with round reaction chamber (41), extends transversely through in the circle reaction chamber (41) and is provided with rotation axis
(42), the rotation axis (42) is externally connected to driving motor (43), and rotation axis (42) is equipped with 6 blade boxes (44), described
Blade box (44) is provided with catalyst.
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| CN109848191B (en) | 2021-05-28 |
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