CN207674458U - A kind of mingled burning installation of oil sludge and coal - Google Patents
A kind of mingled burning installation of oil sludge and coal Download PDFInfo
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- CN207674458U CN207674458U CN201721808165.7U CN201721808165U CN207674458U CN 207674458 U CN207674458 U CN 207674458U CN 201721808165 U CN201721808165 U CN 201721808165U CN 207674458 U CN207674458 U CN 207674458U
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- oil sludge
- incinerator
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Abstract
The utility model discloses the mingled burning installation of a kind of oil sludge and coal, which includes incinerator, oil sludge charging gear is arranged at the changeover portion of incinerator, oil sludge charging gear includes three-way pipe；Coiling has steamtraced piping on the charging manifold of three-way pipe, and steam is connected in steamtraced piping, and the outer surface of steamtraced piping is surrounded by insulating layer, and the threeway intersection of three-way pipe is supported with divergent-centrifugal impeller, and divergent-centrifugal impeller is driven by shunting motor；First discharge pipe of three-way pipe and the second discharge pipe are inserted into the burner hearth of incinerator, and opposite is disposed with secondary air channel, arranges coal feed point below；Incinerator slag mouth is nearby provided with wind cap.The mingled burning installation carries out after mixing burning processing, on the basis of reducing coal amount, ensure steam production (80% 120%) within the scope of Design cooling load, alleviate oil sludge present situation in need of immediate treatment simultaneously, the technique produces certain economic benefit and reduces the pollution of environment while oil sludge Crude Oil calorific value is utilized.
Description
Technical field
The utility model is related to oil sludge is innoxious and recycling treatment field more particularly to a kind of oil sludge and coal are mixed
Burn device.
Background technology
Currently, the technology of oil sludge incineration disposal is based on rotary kiln joint dual firing chamber, but the treating capacity of rotary kiln has
Limit, is usually no more than 100t/d, and rotary kiln oil sludge cannot be handled it is more clean.
Survey data shows that Henan Oil Field greasy filth yield is 1.8 × 104T/a, Daqing Area oil sludge it is accumulative up to 500 ×
104m3, Liaohe Oil Field oil sludge amount of storage 20 × 104T, and with annual 5 × 104The speed of t is increasing, and urgent need provides oil sludge
The processing method of minimizing.
Utility model content
For above-mentioned present situation, the utility model provides a kind of mingled burning installation of oil sludge and coal.On the one hand mesh can be handled
The preceding oil sludge largely stored up simultaneously reduces coal consumption amount, and on the other hand, dioxin in flue gas and SO can be reduced by mixing coal burning2Original
Beginning discharge capacity reduces the operating cost of flue gas purification system, advantageous to the clean emission of flue gas.
The utility model technical scheme applied to solve the technical problem is：A kind of mingled burning installation of oil sludge and coal, packet
Incinerator is included, oil sludge charging gear is set at the changeover portion of the incinerator, the oil sludge charging gear includes three-way pipe；
Coiling has steamtraced piping on the charging manifold of the three-way pipe, and steam, steamtraced piping are connected in steamtraced piping
Outer surface be surrounded by insulating layer, the threeway intersection of three-way pipe is supported with divergent-centrifugal impeller, and divergent-centrifugal impeller, which passes through, shunts motor driving；
First discharge pipe of three-way pipe and the second discharge pipe are inserted into the burner hearth of incinerator；On incinerator, three-way pipe first
Discharge pipe and the second discharge pipe opposite are disposed with secondary air channel, on incinerator, the first discharge pipe of three-way pipe and
Two discharge pipe arranged beneath coal feed points；Incinerator slag mouth is nearby provided with wind cap, and the primary air piping of incinerator leads to
Wind cap.
Preferably, the first discharge pipe and the second discharge pipe of three-way pipe are in a plane, and and horizontal plane
It is parallel；The charging manifold of three-way pipe is arranged obliquely.
Preferably, the first discharge pipe of three-way pipe and the angle of the second discharge pipe are 120 degree.
Preferably, the insulating layer uses rock cotton board.
Preferably, the steam being connected in steamtraced piping is the saturated vapor of 0.4-0.6MPa.
The utility model has an advantageous effect in that：The utility model solve rotary kiln disposition amount it is limited and disposition do not do
Net limitation；And it is effectively utilized the calorific value of greasy filth, the coal consumption amount of steam-injection boiler is greatly reduced, the energy is saved；Simultaneously to danger
Dangerous waste is handled, and harm of the greasy filth to environment is effectively reduced.Steam-injection boiler is embodied to steam not less than minimum design
Load (80%), and reduce the advantage of coal consumption amount, there is direct mitigation for domestic each oil field problems of energy consumption；
It most importantly solves the environmental hazard come by greasy filth zone of illuviation, has great significance to the ecological environment of surrounding.Sump oil
Mud accumulation can not minimizing, innoxious, disposal of resources present situation.
Description of the drawings
Fig. 1 is the vertical view of the utility model；
Fig. 2 is the front view of the utility model；
Fig. 3 is the pollutant emission figure under different fuel mixing ratios；
In figure：Incinerator 1, three-way pipe 2, steamtraced piping 3, insulating layer 4, divergent-centrifugal impeller 5, shunting motor 6, Secondary Air
Pipe 7, coal feed point 8, slag mouth 9, wind cap 10, charging manifold 201, the first discharge pipe 202, the second discharge pipe 203.
Specific implementation mode
The utility model is described further with reference to the accompanying drawings and examples.
As shown in Figs. 1-2, the utility model provides a kind of mingled burning installation of oil sludge and coal, including incinerator 1, described to burn
It burns and oil sludge charging gear is set at the changeover portion of stove 1, the oil sludge charging gear includes three-way pipe 2；The three-way pipe 2
Coiling has steamtraced piping 3 on charging manifold 201, and steam, the appearance of steamtraced piping 3 are connected in steamtraced piping 3
Bread has insulating layer 4, can increase the mobility of oil sludge.The threeway intersection of three-way pipe 2 is supported with divergent-centrifugal impeller 5, shunting
Impeller 5 is driven by shunting motor 6, on the one hand can constantly push oil sludge forward, on the other hand utilizes centrifugal force will be dirty
Greasy filth is divided into two-way, and to alleviate the problem of feeding blockage to a certain extent, sump oil may be implemented in the mode of more mouthfuls of feedings
Mud repeatedly burns on a small quantity, burns more uniformly, completely；Meanwhile oil sludge two-way feed is convenient for the research of maximum fuel mixing ratio；
First discharge pipe 202 of three-way pipe 2 and the second discharge pipe 203 are inserted into the burner hearth (changeover portion of burner hearth) of incinerator 1, can
To ensure the completely burned of material；On incinerator 1, the first discharge pipe 202 of three-way pipe 2 and the second discharge pipe 202 it is right
Face is disposed with secondary air channel 7, and on incinerator 1, three-way pipe 2 first goes out below discharge pipe 202 and the second discharge pipe 203
Arrange that coal feed point 8, the slag mouth 9 of incinerator 1 are nearby provided with wind cap 10, the primary air piping of incinerator leads to wind cap
10.Due to a large amount of feedings of oil sludge, needs to adjust air-distribution device (the utility model uses wind cap) and blowing system (is adopted
With primary air piping and secondary air channel) ensure that the best fluidisation of incinerator, wind cap can alleviate imperfect combustion material and fall
The case where entering slag notch；Increase secondary air flow (i.e. the air quantity of secondary air channel), strengthens the fluidisation of material in incinerator.
Preferably, the first discharge pipe and the second discharge pipe of three-way pipe are in a plane, and and horizontal plane
It is parallel；The charging manifold of three-way pipe is arranged obliquely, it is ensured that being full of for the interior material of pipe prevents from filling out partially-occupied band because of material
Blanking problem.First discharge pipe and the second discharge pipe are inserted into certain depth in the burner hearth of incinerator, and it is viscous to can avoid oil sludge
The case where wall, also reduces the influence to castable in stove.
Preferably, the first discharge pipe of three-way pipe and the angle of the second discharge pipe are 120 degree；The insulating layer is adopted
Use rock cotton board；The shunting motor is fire-proof motor, explosive-proof grade BT4.
Realize that the firing technique of mixing of oil sludge and coal includes the following steps in the device of the utility model：
Step (1), boiler load are no more than 130t/h, and primary air piping and secondary air channel are always not more than to air quantity
90000Nm3/ h, burn generation flue gas incrementss be no more than 110% (can be according to existing wind when the transformation of the incinerators of other loads
Machine parameter to air quantity and exhaust gas volumn to constraining)；Incinerator exit gas temperature maintains 1100 DEG C ± 100 DEG C.
Step (2), oil sludge need to ensure to have in incinerator preferable fluidized state that (i.e. particle is evenly distributed in before adding
In entire fluid bed and as flow velocity increases bed even inflation, pressure drop is stablized, and bed fluctuates very little), concrete operations can lead to
It crosses and gradually decreases coal amount when steam-injection boiler normally burns coal operation and increase oil sludge to realize, lead in steamtraced piping and steam
Vapour, shunting motor driving divergent-centrifugal impeller rotation, oil sludge is uniformly injected into the charging manifold of three-way pipe by screw pump, toward into
Coal, the mass ratio ranging from 2 of oil sludge and coal are put into coal mouth：1-1:2；
Step (3), coal and oil sludge burn in incinerator emulsion zone, and the oily moment heat release in oil sludge improves lower furnace portion
Temperature, mixed material burn after generate fuel gas dilute-phase zone complete clean combustion, burn waste residue be discharged by slag-drip opening.
Under the premise of the total treating capacity of material is constant, oil sludge is with fuel mixing ratio (oil sludge：Coal=2:1-1:2) it continually and steadily gives
After material, adjustment steam-injection boiler operating condition (main adjustment cloth wind and blowing system, i.e., by wind turbine or air door regulating air volume or
Pressure), boiler duty changes in 66%-83% loads, exhaust gas volumn and declines with original pollutant emission, and original tail gas is net
Change system can meet.
Under the premise of the total treating capacity of material is constant, the best Blend proportion of oil sludge and coal is in oil sludge：Coal=1:2-1:1 model
In enclosing, one side steam production is not less than minimum Design cooling load (80%), and disposes relatively large number of oil sludge；On the other hand from
Fig. 3 can be seen that oil sludge and burn the SO that quality is more than 1/22Discharge capacity will be higher by one times compared with burning is mixed less than 1/2, mix simultaneously
CO raw emissions are reduced after burning coal amount increase, illustrate that the imperfect combustion situation in stove weakens.
| Blend proportion (oil sludge：Coal) | Steam production (mass ratio) | Boiler efficiency | Exhaust gas volumn (standard state volume ratio) |
| 0:100% | 100% | 90.9% | 100% |
| 33%:67% | 83.41% | 89.9% | 84.99% |
| 50%:50% | 75.06% | 89.0% | 77.46% |
| 67%:33% | 66.67% | 88.1% | 70.04% |
Note：1, the Lower heat value of coal considers according to 5500kcal/kg, and the Lower heat value of oil sludge is according to 3000kcal/kg
Consider (experiment data measured).
The technique is in 1100 DEG C, oil sludge：Coal=2:Under the Incineration circumstances of 1 (mass ratio), flue gas Zhong bis- Evil are tested
English content , bioxin original discharge concentrations are 0.08ngTEQ/Nm3(it is converted to concentration of emission when oxygen content is 11%, the number
Obtained according to being detected by Institute of Analysis of Zhejiang University), compare the original dioxin emission 0.2ngTEQ/Nm of steam-injection boiler3, coal mixes
Burn the raw emissions for greatly reducing bioxin.
From figure 3, it can be seen that adding coal sample in greasy filth to SO2Discharge inhibited, the higher inhibition work of additive amount
With more apparent；Meanwhile coal mixes the SO for burning and generating2Dui dioxins have the inhibiting effect, dominant mechanism to include：(1)SO2Pass through reaction
Active Chlorine is consumed, chlorination reaction is reduced, reaction equation is：C12+SO2+H2O——2HCl+SO3；(2) sulphur forms sulfuric acid with metal
Salt, reduces its catalytic activity, and reaction equation is：SO2+1/2O2——SO3, SO3+CuO——CuSO4；(3) sulphur is formed with predecessor
Sulfonated bodies reduces its formation probability.Meanwhile as the ratio of coal sample increases, NOxDischarge capacity rises, and main cause is in coal sample
Nitrogen caused by；CO discharge capacitys are reduced, it is seen that the increase of coal sample is advantageous to fully burning.
Therefore, compared with coal directly burns, the cooperative disposal of oil sludge is carried out on coal-burning boiler (steam-injection boiler) to flue gas
Clean emission it is advantageous, have apparent environmental benefit.
The heat source of steam uses the steam that steam-injection boiler generates in steam tracing coil pipe, and 0.4MPa is down to by pressure and temperature reducing,
143℃.Steam is spiraled by 20# seamless steel pipes on the outside of feeding lines, and former afterheat utilizing system is sent back to again after steam condensation.
Steam tracing outer tube layer is equipped with rock wool heat-preservation, reduces heat loss.
The first outlet and second outlet arranged beneath coal feed point of three-way pipe, which can be adjusted by the addition of coal
The incinerator operating mode that optimum sump oil adds, and the operating mode for causing fluidisation to be deteriorated after can largely being added to oil sludge is made most soon
The adjustment of speed.
Claims (5)
1. the mingled burning installation of a kind of oil sludge and coal, which is characterized in that including incinerator, be arranged at the changeover portion of the incinerator
Oil sludge charging gear, the oil sludge charging gear includes three-way pipe；Coiling has steam on the charging manifold of the three-way pipe
Heat tracing pipeline is connected with steam in steamtraced piping, and the outer surface of steamtraced piping is surrounded by insulating layer, and the threeway of three-way pipe is handed over
Divergent-centrifugal impeller is supported at remittance, divergent-centrifugal impeller drives by shunting motor；The first discharge pipe and the second discharge nozzle of three-way pipe
Road is inserted into the burner hearth of incinerator；On incinerator, the first discharge pipe of three-way pipe and the second discharge pipe opposite be disposed with
Secondary air channel, on incinerator, the first discharge pipe of three-way pipe and the second discharge pipe arranged beneath coal feed point；Incinerator is fallen
Cinder notch is nearby provided with wind cap, and the primary air piping of incinerator leads to wind cap.
2. the mingled burning installation of a kind of oil sludge and coal according to claim 1, which is characterized in that the first discharging of three-way pipe
Pipeline and the second discharge pipe are in a plane, and parallel with horizontal plane；The charging manifold of three-way pipe is arranged obliquely.
3. the mingled burning installation of a kind of oil sludge and coal according to claim 1, which is characterized in that the first discharging of three-way pipe
The angle of pipeline and the second discharge pipe is 120 degree.
4. the mingled burning installation of a kind of oil sludge and coal according to claim 1, which is characterized in that the insulating layer uses rock
Cotton plate.
5. the mingled burning installation of a kind of oil sludge and coal according to claim 1, which is characterized in that lead in steamtraced piping
Some steam is the saturated vapor of 0.4-0.6MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721808165.7U CN207674458U (en) | 2017-12-21 | 2017-12-21 | A kind of mingled burning installation of oil sludge and coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721808165.7U CN207674458U (en) | 2017-12-21 | 2017-12-21 | A kind of mingled burning installation of oil sludge and coal |
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| Publication Number | Publication Date |
|---|---|
| CN207674458U true CN207674458U (en) | 2018-07-31 |
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| CN201721808165.7U Active CN207674458U (en) | 2017-12-21 | 2017-12-21 | A kind of mingled burning installation of oil sludge and coal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940472A (en) * | 2017-12-21 | 2018-04-20 | 浙江物华天宝能源环保有限公司 | The mingled burning installation of a kind of oil sludge and coal and mix firing technique |
-
2017
- 2017-12-21 CN CN201721808165.7U patent/CN207674458U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940472A (en) * | 2017-12-21 | 2018-04-20 | 浙江物华天宝能源环保有限公司 | The mingled burning installation of a kind of oil sludge and coal and mix firing technique |
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