CN208430096U - A kind of sandization desorption processing unit using flue gas indirect heating - Google Patents

Abstract

Processing unit is desorbed in a kind of sandization using flue gas indirect heating of the utility model, it is related to containing pollutant process technical field, it is by crusher, thermal desorption device and separator are constituted, the crusher connects thermal desorption device, thermal desorption device connects high-temperature heater, thermal desorption device connects receiving hopper, receiving hopper high-temperature heater, thermal desorption device is connected with swirl-flow devices and condensation separator device, the temperature control loop exit of condensation separator is sequentially connected high-temperature expansion slot, conduction oil booster pump, generator, aerial cooler, low-temperature expansion slot and heat conduction oil circulating pump, it is to heat oily sludge object anoxybiotic, so that pollutant volatilization or separation, different liquid is precipitated at different temperatures, recoverable；Treated, and oil gas enters subsequent gases processing system；The medium circulation pipe road of its condensation separator is equipped with generating set simultaneously, and generating set is generated electricity using high-temperature medium, is also other equipment power supply while for medium cooling.

Description

A kind of sandization desorption processing unit using flue gas indirect heating

Technical field

The utility model relates to oily sludge object processing technology field more particularly to a kind of sand using flue gas indirect heating Change desorption processing unit.

Background technique

Currently, generated a kind of solid-liquid mixing rich in mineral oil in oil exploration, exploitation, storage and transportation and refining process Class waste -- oily sludge object.No matter oily sludge object enters soil also or ocean, lake, all can to ecological environment or Water source causes seriously to pollute, and urgent need obtains effective and sustainable improvement.Although handling the thermal desorption technology containing pollutant Worldwide implemented, but still have following problems: the problems such as cost of investment is high, energy consumption is big, low efficiency.

Summary of the invention

The utility model provides a kind of sandization desorption using flue gas indirect heating for above-mentioned the deficiencies in the prior art Processing unit.

Processing unit is desorbed in a kind of sandization using flue gas indirect heating of the utility model, is by crusher, thermal desorption Device and separator are constituted, and the discharge end and screw conveyor I of the crusher are opposite, the discharge end of screw conveyor I The entrance of thermal desorption device is connected, mutually outlet connects high-temperature heater, the gaseous phase outlet of high-temperature heater to the oil of thermal desorption device The heat transferring medium entrance of thermal desorption device is connected, the solid-phase outlet of thermal desorption device connects receiving hopper, and the discharge port of receiving hopper is logical It crosses screw conveyor II to be connected with the feed end of high-temperature heater, the gaseous phase outlet of thermal desorption device is connected with swirl-flow devices, rotation The solid-phase outlet end of stream device is connected with dreg-accepting hopper, and the slagging-off end of dreg-accepting hopper is connected with receiving hopper, the gaseous phase outlet of swirl-flow devices End connection condensation separator, condensation separator oil, which is mutually exported, is separately connected 1# oil tank, 2# oil tank and 3# oil by oil transfer pump The outer oil transfer pump of 1#, the outer oil transfer pump of 2# and 3# are respectively equipped on the outer defeated pipeline of storage tank 1# oil tank, 2# oil tank and 3# oil tank The water phase outlet of outer oil transfer pump, condensation separator connects waste water tank by water-delivery pump, and the outer defeated pipeline of waste water tank is equipped with outer defeated Water pump, it is cooling that the temperature control loop exit of condensation separator is sequentially connected high-temperature expansion slot, conduction oil booster pump, generator, air Device, low-temperature expansion slot and heat conduction oil circulating pump, heat conduction oil circulating pump connect the temperature control loop head of condensation separator, condense and separate The waste liquid outlet of device connects gs-oil separator by fixed gas booster fan, and the temperature control circulation line of gs-oil separator is equipped with oil Gas refrigerator, mutually outlet connection 4# oil product storage tank, the outer defeated pipeline of 4# oil product storage tank are equipped with defeated outside 4# the oil of gs-oil separator Oil pump, the fixed gas outlet connection active carbon filter of gs-oil separator, the gas vent and high-temperature heating of active carbon filter Furnace is connected.

The thermal desorption device as a further improvement of the utility model, including guard shield, thermal desorption case and confession Heat engine structure, guard shield bottom are equipped with heat supply mechanism, are equipped with thermal desorption case in guard shield, and guard shield is externally provided with feed hopper, It is connected to inside feed hopper and thermal desorption case, rotation axis is laterally installed in thermal desorption case, rotation axis one end passes through thermal desorption case and prevents Shield shell is connect with driving motor, and the rotation axis other end is connect by bearing with thermal desorption chamber interior wall, and rotation axis is equipped with stirring Chopper and stirring blade, stirring chopper are located at the side of feed hopper, and stirring chopper number is at least four, one end of stirring chopper Concentric co-axial is fixed on the rotating shaft, and on the circumferential surface, the stirring blade number is extremely for stirring chopper other end equal distribution It is less four, stirring blade is fixedly connected by four blade concentric co-axials and is constituted；It is formed and is supplied between guard shield and thermal desorption case Hot cavity；Heat supply mechanism includes pedestal, burner, combustion barrel and material storing box, and pedestal is hollow structure, placing burning cylinder in pedestal And material storing box, material storing box are connect by auger conveyor with combustion barrel, combustion barrel one end is placed in outside pedestal and connect with burner, fires It burns top in the middle part of cylinder to connect with smoke exhaust barrel A, the top smoke exhaust barrel A outlet flue is placed in heat supply cavity, and heat supply cavity top is equipped with row Chimney B；Thermal desorption upper box part and lower part are respectively equipped with exhaust pipe and drainage line；Exhaust pipe one end and thermal desorption case connect Logical, the exhaust pipe other end is connect with membrane separator, and exhaust pipe is equipped with air blower, and membrane separator passes through pipeline and collecting tank It connects, is successively arranged vacuum pump and condenser on the pipeline.

It as a further improvement of the utility model, further include DCS intelligent independent control system, the control of DCS intelligent independent Internal system be equipped with wireless transport module and display, the DCS intelligent independent control system respectively with high-temperature heater, heat Desorption apparatus, screw conveyor I, crusher, high-temperature expansion slot, conduction oil booster pump, generator, aerial cooler, low temperature are swollen Swollen slot, heat conduction oil circulating pump, swirl-flow devices, dreg-accepting hopper, condensation separator, oil transfer pump, water-delivery pump, fixed gas booster fan, oil The outer oil transfer pump of gas refrigerator, gs-oil separator, outer water-delivery pump, active carbon filter, 1#, the outer oil transfer pump of 4#, 2# outer oil transfer pump, 3# II circuit connection of outer oil transfer pump, receiving hopper and screw conveyor.

Processing unit is desorbed in a kind of sandization using flue gas indirect heating of the utility model, and the scope of application is relatively wide, handles Effect is good, is that will be crushed in advance to be delivered to thermal desorption device by conveyer to the material of thermal desorption, thermal desorption device utilizes The indirect flue gas for heating stove heating is that medium carries out heat exchange, oily sludge object anoxybiotic is heated, so that pollutant is situated between from pollution It being able to volatilize or separate in matter, temperature-controllable, flue-gas temperature improves heat exchange efficiency up to 1000 DEG C, accelerate rate of cleavage, Keep cracking more thorough, reduces subsequent processing device, reduce environmental pollution, saved energy consumption, reduce disposable investment Cost, while pollutant selectively can be by thermal desorption from an inversion of phases by adjusting the modes such as heating temperature and residence time Another phase, is precipitated different liquid at different temperatures, recoverable, temperature control 100 DEG C, 200 DEG C, 400 DEG C, 500 DEG C, do not occur the destruction to organic pollutant in repair process；After thermal desorption device treated oil gas enters Continuous gas handling system, further separation condensation are separated by filtration, and realize the ultra-clean processing of oily sludge object；Its condensation separation simultaneously The medium circulation pipe road of device is equipped with generating set, and generating set is generated electricity using high-temperature medium, while for medium cooling, It produces electricl energy, powers for other equipment.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model thermal desorption device structural schematic diagram.

Specific embodiment

As shown in Figure 1, processing unit is desorbed in a kind of sandization using flue gas indirect heating of the utility model, it is by being crushed Machine 4, thermal desorption device 2 and separator are constituted, and the discharge end and screw conveyor I 3 of the crusher 4 are opposite, crusher 4 The functions such as stirring, cutting are combined, it is broken to carry out joint to sludge；Reciprocating screen is set in exit simultaneously, Sieving and casing is greater than The sundries such as the stone of 20mm, while it being equipped with automatically cleaning cabin inner wall function, interior side tool is cleared up in installation on blade, so that being sticked to inner wall On greasy filth cleared up, guarantee motor will not be damaged because of load excessive；And occupied area is small, and processing speed is fast, efficiency Height, smaller by viscosity influence, processing quality is stablized；The entrance of the discharge end connection thermal desorption device 2 of screw conveyor I 3, heat are de- Mutually outlet connection high-temperature heater 1, the heat exchange of the gaseous phase outlet connection thermal desorption device 2 of high-temperature heater 1 are situated between the oil of adsorption device 2 Matter entrance, the solid outlet of high-temperature heater 1 connect waste residue bucket 33, and the solid-phase outlet of thermal desorption device 2 connects receiving hopper 30, even The discharge port for connecing receiving hopper 30 is connected by screw conveyor II 31 with the feed end of high-temperature heater 1, the original of high-temperature heater 1 Material is oily diesel oil or the heavy oil isolated, natural gas, biogas, the lime-ash to flash back being discharged by receiving hopper 30 and is filtered by active carbon The fixed gas that device 21 is discharged, has greatly saved the energy and environment protection emission amount；Flue-gas temperature is first increased in high-temperature heater 1 100 degree, flue gas is then delivered to 2 preheating material of thermal desorption device, while part water and heavy hydrocarbon is precipitated, is heated at high temperature in 1 furnace Continue to heat, flue-gas temperature is made to reach 1000 degree, provides heat source, after condensing and separating, different temperatures to thermal desorption device 2 indirectly Lower precipitation hydro carbons and fixed gas, lime-ash discharge, recycle, and whole service is run under negative pressure state；The processing of thermal desorption device 2 Solid phase residue total petroleum hydrocarbon TPH < 3 ‰ afterwards, but after heated furnace flashes back, the ultra-clean discharge in solid phase residue total petroleum hydrocarbons content TPH=0； The gaseous phase outlet of thermal desorption device 2 is connected with swirl-flow devices 11, and oil gas first passes around swirl-flow devices 11, filters out what gas was taken out of Lime-ash；The solid-phase outlet end of swirl-flow devices 11 is connected with dreg-accepting hopper 12, and the slagging-off end of dreg-accepting hopper 12 is connected with receiving hopper 30, eddy flow The gaseous phase outlet end of device 11 connects condensation separator 13, and oil gas enters condensation separator 13, reduces oil gas temperature by control, Separation water outlet and different classes of hydrocarbon, hydro carbons can outer defeated reuses；The oil of condensation separator 13 mutually distinguished by oil transfer pump 14 by outlet Connect 1# oil tank 24,2# oil tank 27 and 3# oil tank 29,1# oil tank 24,2# oil tank 27 and 3# oil tank 29 it is outer defeated The outer oil transfer pump 23 of 1#, the outer oil transfer pump 26 of 2# and the outer oil transfer pump 28 of 3#, the water phase outlet of condensation separator 13 are respectively equipped on pipeline Waste water tank 19 is connected by water-delivery pump 15, the outer defeated pipeline of waste water tank 19 is equipped with outer water-delivery pump 20, and the temperature control of separator 13 follows Endless tube road is equipped with heat-exchanger rig, and heat-exchanger rig is that be sequentially connected high temperature in the exit of the temperature control circulation line of separator 13 swollen Swollen slot 5, conduction oil booster pump 6, generator 7, aerial cooler 8, low-temperature expansion slot 9 and heat conduction oil circulating pump 10, conduction oil follows The temperature control loop head of 10 connection condensation separator 13 of ring pump, heat-exchanger rig use conduction oil for energy storage carrier, thermal energy are recycled, After the power generation of generator 7, the utility model device reuse is resupplied；Recovery utilization rate > 90%, conduction oil are passed through by low-temperature expansion slot 9 Conduction oil, which is recycled into condensation separator 13, carries out heat exchange recycling heat, is then back to high-temperature expansion slot 5, then by high-temperature heat-conductive Oily booster pump 6 is delivered to generator 7 and generates electricity, and the conduction oil after cooling power generation is back to low-temperature expansion slot 9 again, and circulation makes With；Expansion slot is generally arranged at the highest point of system, can accommodate heat transfer oil expanded by heating amount, also has concurrently light in filling product The emptying of the low-boiling-point substance generated in component and operation supplements the effects of evaporation and operating loss, nitrogen-sealed, in actual use Often have some devices expansion slot must nitrogen envelope, expansion slot nitrogen envelope effect first is that preventing heat transfer oil oxygen due to ingress of air Change, in addition can apply certain pressure, keeps liquid phase operation；The waste liquid outlet of condensation separator 13 passes through fixed gas booster fan 16 Gs-oil separator 18 is connected, the temperature control circulation line of gs-oil separator 18 is equipped with oil gas refrigerator 17, and fixed gas is in pressurization wind Oil product outward transport is precipitated under the action of machine 16 after oil gas refrigerator 17 and gs-oil separator 18, the oil of gs-oil separator 18 mutually exports 4# oil product storage tank 22 is connected, the outer defeated pipeline of 4# oil product storage tank 22 is equipped with the outer oil transfer pump 25 of 4#, and gs-oil separator 18 does not coagulate The fixed gas outlet of gas outlet connection active carbon filter 21, active carbon filter 21 is connected with high-temperature heater 1, by fixed gas It recycles.

Thermal desorption device 2, including guard shield 58, thermal desorption case 59 and heat supply mechanism, 58 bottom of guard shield, which is equipped with, to be supplied Heat engine structure, guard shield 58 is interior to be equipped with thermal desorption case 59, and guard shield 58 is externally provided with feed hopper 42, feed hopper 42 and thermal desorption case 59 inside are connected to, and rotation axis 43 is laterally installed in thermal desorption case 59, and 43 one end of rotation axis passes through thermal desorption case 59 and guard shield 58 connect with driving motor 51, and 43 other end of rotation axis is connect by bearing with 59 inner wall of thermal desorption case, and rotation axis 43 is equipped with Stirring chopper 44 and stirring blade 45, stirring chopper 44 are located at the side of feed hopper 42, and 44 numbers of stirring chopper are at least four, One end concentric co-axial of stirring chopper 44 is fixed in rotation axis 43,44 other end equal distribution of stirring chopper on the circumferential surface, Described 45 numbers of stirring blade are at least four, and stirring blade 45 is fixedly connected by four blade concentric co-axials and is constituted；Protection Heat supply cavity 56 is formed between shell 58 and thermal desorption case 59；Heat supply mechanism includes pedestal 34, burner 35, combustion barrel 36 and storage Hopper 37, pedestal 34 are hollow structure, placing burning cylinder 36 and material storing box 37 in pedestal 34, and material storing box 37 passes through auger conveyor 52 connect with combustion barrel 36, and 36 one end of combustion barrel is placed in outside pedestal 34 and connect with burner 35,36 middle part top of combustion barrel and row Chimney A38 connection, the top smoke exhaust barrel A38 outlet flue are placed in heat supply cavity 56, and 56 top of heat supply cavity is equipped with smoke exhaust barrel B39； 59 upper and lower part of thermal desorption case is respectively equipped with exhaust pipe 40 and drainage line 41；40 one end of exhaust pipe and thermal desorption case 59 Connection, 40 other end of exhaust pipe are connect with membrane separator 46, and exhaust pipe is equipped with air blower 47, and membrane separator 46 passes through pipe Road is connect with collecting tank 48, and vacuum pump 49 and condenser 50 are successively arranged on the pipeline.

This thermal desorption system when in use, launched by feed hopper 42 into thermal desorption case 59 by material, starts driving motor 51, driving motor 51 drives rotation axis 43 to rotate, and then the stirring chopper 44 and stirring blade 45 that are arranged in rotation axis 43 are done Circular motion, material enter stirring chopper 44 after feed hopper 42, and stirring chopper 44 smashes material first, and passes through stirring Switch-plate on chopper 44 starts, then is crushed material by several stirring blades 45, on each stirring blade 45 Blade position is staggered setting, crushes when stirring blade 45 moves in a circle to material, convenient for material it is uniform by Heat and desorption；Meanwhile material storing box 37 conveys fuel (biomass granule fuel) into combustion barrel 36 by auger conveyor 52, Ignited fuel is made fuel burn in combustion barrel 36 by burner 35, and the hot fume for generation of burning enters confession by smoke exhaust barrel A38 In hot cavity 45, hot fume random migration in heat supply cavity 45, and thermal desorption case 59 is surrounded, to being heated in thermal desorption case 59 And having reached the uniformly heated purpose of thermal desorption case 59, hot fume heats thermal desorption case 59, i.e., to the object in thermal desorption case 59 Material heating, as material particles become smaller and with the continuous turning over materials of stirring blade 45, make material not only can uniformly by Heat, and the thermal efficiency is accelerated, the speed and quality of desorption is improved, and then reduce the consumption of the energy.

Processing unit is desorbed in a kind of sandization using flue gas indirect heating, further includes DCS intelligent independent control system Wireless transport module and display, the DCS intelligent independent control are equipped with inside 32, DCS intelligent independent control system 32 of uniting System 32 increases with high-temperature heater 1, thermal desorption device 2, screw conveyor I 3, crusher 4, high-temperature expansion slot 5, conduction oil respectively Press pump 6, generator 7, aerial cooler 8, low-temperature expansion slot 9, heat conduction oil circulating pump 10, swirl-flow devices 11, dreg-accepting hopper 12, condensation Separator 13, oil transfer pump 14, water-delivery pump 15, fixed gas booster fan 16, oil gas refrigerator 17, gs-oil separator 18, outer water delivery Pump 20, active carbon filter 21, the outer oil transfer pump 23 of 1#, the outer oil transfer pump 25 of 4#, the outer oil transfer pump 26 of 2#, 3# outer oil transfer pump 28, splicing Bucket 30 and II 31 circuit connection of screw conveyor；It utilizes the equipment such as thermal desorption device 2, high-temperature heater 1, gs-oil separator 18 The intelligence sensors such as pressure sensor, temperature sensor, flow dosimeter, liquid level sensor, realize that intelligent PID is independently transported Row is adjusted, control, realizes intelligent operational management.DCS intelligent independent control system can be wireless by operation data by 4G network In teletransmission to the terminal devices such as mobile phone, plate, computer, can real time inspection, monitoring device operating condition, and can be by mobile phone, flat The terminal devices such as plate, computer are adjusted the utility model, control, and realize wireless remote manipulation.

Claims (3)

1. It is by crusher (4), thermal desorption device (2) and to divide 1. processing unit is desorbed in a kind of sandization using flue gas indirect heating Constituted from device, it is characterised in that the discharge end of the crusher (4) and screw conveyor I (3) relatively, screw conveyor I (3) entrance of discharge end connection thermal desorption device (2), mutually outlet connection high-temperature heater (1) of the oil of thermal desorption device (2), The heat transferring medium entrance of gaseous phase outlet connection thermal desorption device (2) of high-temperature heater (1), the solid phase of thermal desorption device (2) go out Mouth connection receiving hopper (30), the discharge port of receiving hopper (30) pass through the charging of screw conveyor II (31) and high-temperature heater (1) End be connected, the gaseous phase outlet of thermal desorption device (2) is connected with swirl-flow devices (11), the solid-phase outlet end of swirl-flow devices (11) with connect Slag bucket (12) is connected, and the slagging-off end of dreg-accepting hopper (12) is connected with receiving hopper (30), the gaseous phase outlet end connection of swirl-flow devices (11) Condensation separator (13), the oil of condensation separator (13), which is mutually exported, is separately connected 1# oil tank (24), 2# by oil transfer pump (14) Oil tank (27) and 3# oil tank (29), on the outer defeated pipeline of 1# oil tank (24), 2# oil tank (27) and 3# oil tank (29) The outer oil transfer pump (23) of 1#, the outer oil transfer pump (26) of 2# and the outer oil transfer pump (28) of 3#, the water phase of condensation separator (13) is respectively equipped with to go out Mouth is equipped with outer water-delivery pump (20) by water-delivery pump (15) connection waste water tank (19), the outer defeated pipeline of waste water tank (19), and condensation divides It is cold that temperature control loop exit from device (13) is sequentially connected high-temperature expansion slot (5), conduction oil booster pump (6), generator (7), air But device (8), low-temperature expansion slot (9) and heat conduction oil circulating pump (10), heat conduction oil circulating pump (10) connect condensation separator (13) The waste liquid outlet of temperature control loop head, condensation separator (13) connects gs-oil separator by fixed gas booster fan (16) (18), the temperature control circulation line of gs-oil separator (18) is equipped with oil gas refrigerator (17), and the oil of gs-oil separator (18) mutually goes out Mouth connection 4# oil product storage tank (22), the outer defeated pipeline of 4# oil product storage tank (22) are equipped with the outer oil transfer pump (25) of 4#, gs-oil separator (18) fixed gas outlet connection active carbon filter (21), the gas vent and high-temperature heater of active carbon filter (21) (1) it is connected.
2. 2. processing unit is desorbed in a kind of sandization using flue gas indirect heating as described in claim 1, it is characterised in that heat is de- Adsorption device (2), including guard shield (58), thermal desorption case (59) and heat supply mechanism, guard shield (58) bottom are equipped with heat supply machine Structure, guard shield (58) is interior to be equipped with thermal desorption case (59), and guard shield (58) is externally provided with feed hopper (42), feed hopper (42) and heat Connection inside case (59) is desorbed, is laterally installed with rotation axis (43) in thermal desorption case (59), rotation axis (43) one end passes through thermal desorption Case (59) and guard shield (58) are connect with driving motor (51), and rotation axis (43) other end passes through bearing and thermal desorption case (59) Inner wall connection, rotation axis (43) are equipped with stirring chopper (44) and stirring blade (45), and stirring chopper (44) is located at feed hopper (42) side, stirring chopper (44) number are at least four, and one end concentric co-axial of stirring chopper (44) is fixed on rotation axis (43) on, on the circumferential surface, described stirring blade (45) number is at least four to stirring chopper (44) other end equal distribution, Stirring blade (45) is fixedly connected by four blade concentric co-axials and is constituted；It is formed between guard shield (58) and thermal desorption case (59) Heat supply cavity (56)；Heat supply mechanism includes pedestal (34), burner (35), combustion barrel (36) and material storing box (37), pedestal (34) For hollow structure, the interior placing burning cylinder (36) of pedestal (34) and material storing box (37), material storing box (37) pass through auger conveyor (57) It is connect with combustion barrel (36), combustion barrel (36) one end is placed in pedestal (34) and connect outside with burner (35), in the middle part of combustion barrel (36) Top is connect with smoke exhaust barrel A(38), smoke exhaust barrel A(38) top outlet flue is placed in heat supply cavity (56), heat supply cavity (56) top End is equipped with smoke exhaust barrel B(39)；Thermal desorption case (59) upper and lower part is respectively equipped with exhaust pipe (40) and drainage line (41)；Row Feed channel (40) one end is connected to thermal desorption case (59), and exhaust pipe (40) other end is connect with membrane separator (46), exhaust pipe Road is equipped with air blower (47), and membrane separator (46) is connect by pipeline with collecting tank (48), is successively arranged on the pipeline Vacuum pump (49) and condenser (50).
3. 3. processing unit is desorbed in a kind of sandization using flue gas indirect heating as described in claim 1, it is characterised in that also wrap DCS intelligent independent control system (32) is included, is equipped with wireless transport module and display inside DCS intelligent independent control system (32) Device, the DCS intelligent independent control system (32) respectively with high-temperature heater (1), thermal desorption device (2), screw conveyor I (3), crusher (4), high-temperature expansion slot (5), conduction oil booster pump (6), generator (7), aerial cooler (8), low-temperature expansion Slot (9), heat conduction oil circulating pump (10), swirl-flow devices (11), dreg-accepting hopper (12), condensation separator (13), oil transfer pump (14), water delivery Pump (15), fixed gas booster fan (16), oil gas refrigerator (17), gs-oil separator (18), outer water-delivery pump (20), active carbon mistake The outer oil transfer pump (23) of filter (21), 1#, the outer oil transfer pump (25) of 4#, the outer oil transfer pump (26) of 2#, 3# outer oil transfer pump (28), receiving hopper (30) and screw conveyor II (31) circuit connection.