CN103528050A - Thermosetting carrier circulating fluidized bed furnace with coke residue as fuel - Google Patents
Thermosetting carrier circulating fluidized bed furnace with coke residue as fuel Download PDFInfo
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- CN103528050A CN103528050A CN201310519043.6A CN201310519043A CN103528050A CN 103528050 A CN103528050 A CN 103528050A CN 201310519043 A CN201310519043 A CN 201310519043A CN 103528050 A CN103528050 A CN 103528050A
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Abstract
The invention relates to a thermosetting carrier circulating fluidized bed furnace with a coke residue as a fuel. The thermosetting carrier circulating fluidized bed furnace comprises a furnace body, a top cover, a pedestal and an ash discharging device, wherein the furnace body is a cylindrical cavity, the wall surface of the cylindrical cavity is provided with a feed inlet, secondary air inlets, a smoke outlet, an instrument and a sealing device, the lower end of the furnace body is almost in the shape of a cone with conicity of 10 to 20 DEG, the bottom of the furnace body is connected with the pedestal in the form of a flange, the pedestal is provided with a primary air inlet and a burning device, the lower end of the pedestal is connected with the ash discharging device, and the top of the furnace body is provided with the top cover. The circulating fluidized bed furnace provided by the invention has a simple structure; the coke residue burns in the furnace body in a fluidized state, the thermosetting carrier quartz sand is heated to a high temperature, high temperature quartz sand is discharged out with flue gas, the thermosetting carrier quartz sand enters into a pyrolyzing furnace after cyclone separation, and after complete utilization of heat energy, the quartz sand and the coke residue reacted in the pyrolyzing furnace are conveyed in an enclosed way to the circulating fluidized bed furnace for cyclic utilization. The circulating fluidized bed furnace has the advantages of a simple structure, high heat transfer efficiency, usage of the waste of the coke residue as a raw material, conservation of energy, low cost, etc.
Description
Technical field
The present invention relates to a kind of Circulation fluidized-bed furnace, particularly a kind ofly take greasy filth pyrolysis and analyse rear residual cinder and as thermoset carrier, heat energy recovery, in pyrolysis, analyse the Circulation fluidized-bed furnace of greasy filth as fuel, quartz sand, belong to environment protection equipment technical field.
Background technology
Oil field is in Development and Production process; inevitably produce a large amount of oily sludges; oily sludge is very large to the mankind and ecological environment harm; by country, classified as dangerous solid waste (HW08); therefore how oily sludge is reasonably disposed and to be utilized, environmental protection is had great significance.
Pyrolysis is analysed treatment technology due to can high efficiente callback oil, is subject in recent years approving more and more widely and applying.The core of hot analytic technique is pyrolysis analysis system, comprises reacting furnace, heating system, and the shortcoming of existing hot analytic technique is as follows:
1) oily sludge is analysed recovery oil gas in reacting furnace pyrolysis, discharges waste residue simultaneously, contains not thoroughly organic matter and the semicoke of cracking in waste residue, and directly outer row causes energy waste and secondary pollution;
2) heating system provides heat energy by the fuel such as outer coal or natural gas that burn for reacting furnace, and energy consumption is higher, and cost is larger;
Therefore, effectively utilizing the energy in waste residue, reducing extra fuel, improve treatment effeciency, reduce operating cost etc. is the key technology that Technique Popularizing is analysed in pyrolysis.But current existing equipment is difficult to realize and makes full use of pyrolysis and analyse the effective energy in waste residue, take thermoset carrier as heat transfer medium, and direct contact heat is resolved the function of thoroughly processing greasy filth.
Summary of the invention
For addressing the above problem, the invention provides a kind of thermoset carrier Circulation fluidized-bed furnace that cinder is fuel of take, simple in structure, take cinder as fuel, quartz sand are thermoset carrier, take full advantage of pyrolysis and analyse the organic energy in waste residue, quartz sand is directly heated under fluidized state, heat transfer efficiency is high, indirectly reduces energy consumption, realizes the thorough processing disposal of oily sludge and making full use of of resource, solve the wasting of resources and problem of environmental pollution, and make the crude oil in greasy filth obtain efficient recovery.
For achieving the above object, the technical solution used in the present invention: a kind ofly take the thermoset carrier Circulation fluidized-bed furnace that cinder is fuel, comprise body of heater, upper cover, base, ash exhauster, body of heater is cylindrical cavity, the wall of body of heater is provided with charging aperture, Secondary Air entrance, exhaust opening, metering device, sealing device, body of heater lower end is micro-taper, and tapering is 10～20 degree, and bottom is connected with base with form of flanges; Base is provided with wind entrance, burner, and base lower end connects ash exhauster; Capping device is established on body of heater top.
Described Secondary Air entrance is positioned at emulsion zone and the dilute-phase zone intersection of body of heater, uniform 2～4 the Secondary Air entrances of same level.
In described furnace shell, be provided with heat-insulation layer.
Described charging aperture is provided with pneumatic U-shaped valve, then analyses fire grate materials device with external pyrolysis and be connected.
Described bottom of furnace body is provided with air-distribution device, and air-distribution device adopts the side-hole-type blast cap cloth wind of vizored.
On described body of heater, explosion-protection equipment is installed, explosion-protection equipment by interface be connected with body of heater, explosion-proof pad between flange and explosion-proof flange, flange is fixed by high-strength bolt group.
Described metering device comprises temperature measuring set and pressure-measuring device, lays respectively on the base height different with body of heater.
Described upper cover is gland one, gland two gland quartz glass respectively, then is fixed on upper cover plate and embedded board by high-strength bolt.
Described base is comprised of base flange, base housing, burner and heat-insulation layer, base flange is fixedly connected with base housing, base flange and base housing internal face are provided with heat-insulation layer, burner is comprised of burner and burner interface, on base housing, offer burner interface and a wind entrance, burner interface is connected with burner.
Described ash exhauster is by removing ash pipeline, middle bulk cement storage tank and upper and lower two obturators that high temperature cut-off valve forms, and removing ash pipeline is communicated with body of heater, and middle bulk cement storage tank is arranged between upper and lower two high temperature cut-off valves.
Present device is simple in structure, is applicable to oily sludge pyrolysis and analyses recovery system, and body of heater material is Q245R, heat-resisting quantity is strong, one time wind entrance is arranged on base, for burning provides sufficient air, makes cinder and thermoset carrier in emulsion zone fully burning and heat transfer under fluidized state; Secondary Air is positioned at emulsion zone and the dilute-phase zone intersection of body of heater, and secondary wind action is to supplement air fuel is more fully burnt, and can effectively carry thermoset carrier simultaneously.Described charging aperture is analysed fire grate materials device with pyrolysis and is connected, and adopts sealing screw to carry, and prevents that air from entering pyrolysis and analysing stove.Described air-distribution device is to guarantee that wind is to evenly the blowing floating of material, and realizes fully contacting of air and material, and material is fully burnt under fluidized state, and thermoset carrier fully absorbs heat.Described fume extractor is the outlet of the high quartz sand of high-temperature flue gas and recovery, has adopted attemperator simultaneously.Described explosion-protection equipment is the safety device of Circulation fluidized-bed furnace, and while exceeding safety value in stove, explosion-proof pad can break the malleation in stove is discharged, and has prevented explosion phenomenon.Described instrument can be observed temperature and pressure variation in stove at any time.The convenient combustion case of observing in stove of described upper cover.When described ash exhauster unloads ash, above gate valve open gate valve below and close, lime-ash enters bulk cement storage tank, closes gate valve above and open gate valve below after ash is full, and bulk cement storage tank slag is discharged.What described sealing device adopted is ceramic fiber cotton.Manhole is set on body of heater, is mainly used in maintenance, the inspection of equipment, end face of flange adopts ceramic fibre sealing.
Compared with prior art, disposal ability tool increases significantly treatment effect after use present device:
1. Circulation fluidized-bed furnace is analysed stove for pyrolysis heat is provided, the heating system in alternative traditional handicraft;
2. take cinder as fuel, make full use of pyrolysis and analyse the oil composition in rear residue, reclaim resource, realize greasy filth and thoroughly process;
3. take quartz sand as thermoset carrier, quartz sand is the good solid of thermal conductivity, and high quartz sand and oily sludge direct contact heat are resolved, and heat transfer efficiency is high, quartz sand reusable edible.
4. adding of Circulation fluidized-bed furnace, having realized greasy filth pyrolysis, to analyse energy consumption self-sufficient, and the cinder that a upper cycle is produced, as this cycle thermal source, is burnt heat energy is offered to pyrolysis analysis system by Circulation fluidized-bed furnace.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is explosion-protection equipment partial enlarged drawing;
Fig. 3 is upper cover partial enlarged drawing;
1-body of heater in figure, 2-upper cover, 3-base, 4-ash exhauster; 1-1 Secondary Air entrance, 1-2 charging aperture, 1-3 air-distribution device, 1-4 sealing device, 1-5 manhole, 1-6 metering device, 1-7 heat-insulation layer, 1-8 fume extractor, 1-9 explosion-protection equipment, the explosion-proof flange of 1-9-1, the explosion-proof pad of 1-9-2,1-9-3 explosion stack, 1-10 furnace shell; 2-1 quartz glass, 2-2 gland one, 2-3 gland two, 2-4 upper cover plate, 2-5 embedded board; 3-1 base flange, 3-2 base housing, wind entrance of 3-3,3-4 burner; 4-1 bulk cement storage tank, 4-2 high temperature break valve, 4-3 removing ash pipeline.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail, but be not limited to specific embodiment:
Embodiment 1
As shown in Figure 1, a kind ofly take the thermoset carrier CFBB that cinder is fuel and consist of body of heater 1, upper cover 2, base 3 and ash exhauster 4, body of heater is cylindrical, and body of heater lower end is micro-taper, and tapering is 10～20 degree, and furnace chamber Thermal load of cross-section is 3～4MW/m
2, ignition temperature is 800～900 ℃, and gas residence time is 1.5～2s, and bottom of furnace body is connected with base with form of flanges; Base is provided with wind entrance one time, and base lower end connects ash exhauster; Upper cover is established on body of heater top.
The furnace shell 1-10 material of described body of heater is Q245R, and heat-resisting quantity is strong, and body of heater inner chamber is reaction zone, between inboard wall of furnace body face and furnace shell 1-10, is provided with heat-insulation layer 1-7, and heat-insulation layer 1-7 adopts refractory concrete to build, and wherein refractory cement 20%, low bauxite 80%.Body of heater is provided with charging aperture 1-2, Secondary Air entrance 1-1, fume extractor 1-8, manhole 1-5, metering device 1-6, sealing device 1-4, explosion-protection equipment 1-9 etc.Secondary Air entrance 1-1 is arranged on the intersection of emulsion zone and the dilute-phase zone of body of heater, evenly establish three Secondary Air entrances, Secondary Air can make further fully burning of fuel, and thermoset carrier played to conveying effect (flow velocity of flue gas is greater than the sinking speed 6～8m/s of thermoset carrier).Described charging aperture 1-2 analyses fire grate materials device with pyrolysis and is connected, and adopts pneumatic U-shaped valve to carry, and prevents that air from entering pyrolysis and analysing stove.Between described bottom of furnace body and base, be provided with air-distribution device 1-3, employing is with the side-hole-type blast cap cloth wind of blast cap, guarantee that wind, to evenly the blowing floating of material, realizes air and fully contact with thermoset carrier with material, material, full combustion of fuel, thermoset carrier are fully absorbed heat.What described sealing device 1-4 adopted is ceramic fiber cotton, is applied to junction and upper cover gland and the quartz glass junction of body of heater and base flange.The outlet of the high quartz sand that described fume extractor 1-8 is high-temperature flue gas and recovery.Described explosion-protection equipment 1-9 is comprised of interface, explosion-proof pad, explosion-proof flange as shown in Figure 2, explosion-protection equipment by interface be connected with body of heater, explosion-proof pad is between flange and explosion-proof flange, flange is fixed by high-strength bolt group, explosion-protection equipment is the safety device of Circulation fluidized-bed furnace, when in stove, pressure exceeds safety value, explosion-proof pad can break the malleation in stove is discharged, and has prevented explosion phenomenon.
The superstructure that install on body of heater top as shown in Figure 3, upper cover 2 is by upper cover plate 2-1, quartz glass 2-2, gland one 2-3, gland two 2-4, embedded board 2-5, gland one, gland two be gland quartz glass respectively, by high-strength bolt, be fixed on upper cover plate and embedded board again the combustion case in convenient for maintaining and observation stove.
Described base 3 is by base flange 3-1, and base housing 3-2, wind entrance 3-3, burner 3-4, an instrument 1-6 form.Base flange 3-1 is fixedly connected with base housing, base flange 3-1 and base housing internal face are provided with heat-insulation layer, on base housing, offer burner 3-4 interface and a wind entrance 3-3, burner interface is connected with burner, burner is used for opening stove, a wind entrance 3-3, for Circulation fluidized-bed furnace provides combustion air, makes cinder and thermoset carrier at emulsion zone fully burning and heat transfer under fluidized state, thermometer measure ignition temperature and an air temperature.
Described ash exhauster 4 is by middle bulk cement storage tank 4-1, removing ash pipeline 4-3, upper and lower two obturators that high temperature cut-off valve 4-2 forms, and removing ash pipeline is communicated with body of heater, and middle bulk cement storage tank is arranged between upper and lower two high temperature cut-off valves.While unloading ash, above gate valve open gate valve below and close, lime-ash enters bulk cement storage tank, closes gate valve above and open gate valve below after ash is full, and bulk cement storage tank slag is discharged.
Described metering device 1-6 comprises temperature measuring instrument and pressure measuring instruments, lays respectively on the base height different with body of heater, can observe at any time temperature and pressure variation in stove.
The present invention is a kind of take thermoset carrier Circulation fluidized-bed furnace that cinder is fuel and drops into while using in oily sludge pyrolysis analysis system, cinder after greasy filth pyrolysis is analysed, charging gear 1-2 by sealing is transported in Circulation fluidized-bed furnace, a wind entrance 3-3 passes into a wind makes it at emulsion zone, fully burn, remaining combustible material is when arriving dilute-phase zone, the Secondary Air passing into Secondary Air entrance 1-1 contacts, and fully burning again, quartz sand mixes with fuel fluidisation and is heated to 800 ℃～900 ℃, with high-temperature flue gas, discharge, after cyclone separator separation, entering pyrolysis analyses pyrolysis that stove is oily sludge and analyses heat energy is provided, it is 400～500 ℃ that reaction temperature is analysed in pyrolysis, cinder after pyrolysis is analysed and quartz sand are transported to and in Circulation fluidized-bed furnace 1, are carried out recycling next time by sealing charging gear 1-2.
Claims (10)
1. take the thermoset carrier Circulation fluidized-bed furnace that cinder is fuel for one kind, it is characterized in that: comprise body of heater, upper cover, base, ash exhauster, body of heater is cylindrical cavity, the wall of body of heater is provided with charging aperture, Secondary Air entrance, exhaust opening, metering device, sealing device, body of heater lower end is micro-taper, tapering is 10～20 degree, and bottom is connected with base with form of flanges; Base is provided with wind entrance, burner, and base lower end connects ash exhauster; Capping device is established on body of heater top.
2. a kind of thermoset carrier Circulation fluidized-bed furnace that cinder is fuel of take as claimed in claim 1, is characterized in that: described Secondary Air entrance is positioned at emulsion zone and the dilute-phase zone intersection of body of heater uniform 2～4 the Secondary Air entrances of same level.
3. a kind of thermoset carrier Circulation fluidized-bed furnace that cinder is fuel of take as claimed in claim 1, is characterized in that: in described furnace shell, be provided with heat-insulation layer.
4. a kind of thermoset carrier Circulation fluidized-bed furnace that cinder is fuel of take as claimed in claim 1, is characterized in that: described charging aperture is provided with pneumatic U-shaped valve, then analyses fire grate materials device with external pyrolysis and be connected.
5. a kind of thermoset carrier Circulation fluidized-bed furnace that cinder is fuel of take as claimed in claim 1, is characterized in that: described bottom of furnace body is provided with air-distribution device, and air-distribution device adopts the side-hole-type blast cap cloth wind of vizored.
6. a kind of thermoset carrier Circulation fluidized-bed furnace that cinder is fuel of take as claimed in claim 1, it is characterized in that: on described body of heater, explosion-protection equipment is installed, explosion-protection equipment by interface be connected with body of heater, explosion-proof pad between flange and explosion-proof flange, flange is fixed by high-strength bolt group.
7. a kind of as described in as arbitrary in claim 1-6 be take the thermoset carrier Circulation fluidized-bed furnace that cinder is fuel, it is characterized in that: metering device comprises temperature measuring set and pressure-measuring device, lays respectively on the base height different with body of heater.
8. a kind of as described in as arbitrary in claim 1-6 be take the thermoset carrier Circulation fluidized-bed furnace that cinder is fuel, it is characterized in that: described upper cover is gland one, gland two gland quartz glass respectively, then is fixed on upper cover plate and embedded board by high-strength bolt.
9. a kind of as described in as arbitrary in claim 1-6 be take the thermoset carrier Circulation fluidized-bed furnace that cinder is fuel, it is characterized in that: described base is comprised of base flange, base housing, burner and heat-insulation layer, base flange is fixedly connected with base housing, base flange and base housing internal face are provided with heat-insulation layer, burner is comprised of burner and burner interface, on base housing, offer burner interface and a wind entrance, burner interface is connected with burner.
10. a kind of as described in as arbitrary in claim 1-6 be take the thermoset carrier Circulation fluidized-bed furnace that cinder is fuel, it is characterized in that: described ash exhauster is by removing ash pipeline, middle bulk cement storage tank and upper and lower two obturators that high temperature cut-off valve forms, removing ash pipeline is communicated with body of heater, and middle bulk cement storage tank is arranged between upper and lower two high temperature cut-off valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310519043.6A CN103528050A (en) | 2013-10-29 | 2013-10-29 | Thermosetting carrier circulating fluidized bed furnace with coke residue as fuel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310519043.6A CN103528050A (en) | 2013-10-29 | 2013-10-29 | Thermosetting carrier circulating fluidized bed furnace with coke residue as fuel |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847364A (en) * | 2006-04-30 | 2006-10-18 | 大连理工大学 | Method of pyrolyzing thermoset carrier in circular fluidizing bed and rotary kiln |
| CN101149144A (en) * | 2007-11-01 | 2008-03-26 | 上海交通大学 | Circulation fluidized combustion system using wet oil shale semi-coke as material |
| CN203628637U (en) * | 2013-10-29 | 2014-06-04 | 大连环资科技有限公司 | Thermosetting carrier circulating fluidized bed furnace taking coke wastes as fuel |
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- 2013-10-29 CN CN201310519043.6A patent/CN103528050A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847364A (en) * | 2006-04-30 | 2006-10-18 | 大连理工大学 | Method of pyrolyzing thermoset carrier in circular fluidizing bed and rotary kiln |
| CN101149144A (en) * | 2007-11-01 | 2008-03-26 | 上海交通大学 | Circulation fluidized combustion system using wet oil shale semi-coke as material |
| CN203628637U (en) * | 2013-10-29 | 2014-06-04 | 大连环资科技有限公司 | Thermosetting carrier circulating fluidized bed furnace taking coke wastes as fuel |
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Application publication date: 20140122 |