CN207031355U - A kind of system of step-by-step processing lignite - Google Patents
A kind of system of step-by-step processing lignite Download PDFInfo
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- CN207031355U CN207031355U CN201720892034.5U CN201720892034U CN207031355U CN 207031355 U CN207031355 U CN 207031355U CN 201720892034 U CN201720892034 U CN 201720892034U CN 207031355 U CN207031355 U CN 207031355U
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Abstract
The utility model discloses a kind of system of step-by-step processing lignite, and the system includes：The burnt slurry preparation facilities of pyrolysis oven, gas-liquid separation device, water, the burnt slurry gasification installation of water；The intracavitary of pyrolysis oven is provided with inner cylinder, and air collecting chamber is formed between inner cylinder and the furnace wall of pyrolysis oven, and the bottom of inner cylinder exports provided with the first semicoke, and the bottom of air collecting chamber exports provided with the second semicoke；The pyrolysis oil gas entrance of the pyrolysis oil gas vent connection gas-liquid separation device of pyrolysis oven；The first semicoke outlet of pyrolysis oven and the semicoke entrance of the burnt slurry preparation facilities of the second semicoke outlet connection water, the oil water mixture entrance of the burnt slurry preparation facilities of oil water mixture outlet connection water of gas-liquid separation device；The burnt slurry entrance of water of the burnt burnt slurry gasification installation of slurry outlet connection water of water of the burnt slurry preparation facilities of water.The utility model integrates lignite pyrolysis, catalytic cracking of tar, pyrolysis hydrocarbon filter, and prepared by semicoke and oil water mixture into the burnt slurry of water, the discharge of waste water is avoided, realizes the recycling of tar.
Description
Technical field
The utility model belongs to chemical technology field, is specifically related to a kind of system of step-by-step processing lignite.
Background technology
It is bad that lignite is a kind of oxygen-containing high, aqueous high, easy efflorescence, calorific value is low, stability is poor, easy spontaneous combustion and degree of coalification are low
Matter coal.Traditional lignite Land use systems are used for thermal power generation after mainly it is dried, and brown coal grading sub-prime is not implemented
Utilize.At present, brown coal hydrogasification preparing synthetic gas turns into one of main Land use systems of lignite, but rich oxygen content due to lignite and contains
Water feature so that lignite paste-forming properties are poor, water coal slurry concentration is low, gasification efficiency is poor.
Pyrolysis of coal is considered as most promising low order coal grading sub-prime Land use systems, can carry the oil-gas component in lignite
Take out, improve value-added content of product, but the wastewater treatment difficulty at present obtained by pyrolysis is big；Meanwhile the lightweight group of pyrolytic tar
Divide content low, utilize difficulty.
Utility model content
In order to solve the above problems, the utility model proposes a kind of system of lignite step-by-step processing, the pyrolysis of collection lignite, tar
Catalytic pyrolysis, pyrolysis hydrocarbon filter, product are located away from one, and the burnt slurry gasification of the water of preparation is obtained into synthesis gas, realize brown
Coal grading comprehensively utilizes.
One of the purpose of this utility model is to provide a kind of system of step-by-step processing lignite, including pyrolysis oven, gas-liquid separation
The burnt slurry preparation facilities of device, water, the burnt slurry gasification installation of water；
The intracavitary of the pyrolysis oven is provided with inner cylinder, and air collecting chamber, the heat are formed between the furnace wall of the inner cylinder and pyrolysis oven
The fine coal entrance of solution stove is located at the top of the inner cylinder, and the lower sidewall of the inner cylinder is provided with filter opening, is provided with the air collecting chamber
Baffle plate, the top of the baffle plate is Catalytic Layer, and the top of the air collecting chamber is provided with pyrolysis oil gas vent, and the bottom of the inner cylinder is set
There is the outlet of the first semicoke, the bottom of the air collecting chamber exports provided with the second semicoke；
Gas-liquid separation device includes pyrolysis oil gas entrance, cooling water inlet, pyrolysis gas outlet and oil water mixture outlet, institute
The pyrolysis oil gas vent for stating pyrolysis oven connects the pyrolysis oil gas entrance of the gas-liquid separation device；
The burnt slurry preparation facilities of water includes the burnt slurry outlet of semicoke entrance, oil water mixture entrance, dispersant entrance and water, described
The outlet of the first semicoke and the outlet of the second semicoke of pyrolysis oven connect the semicoke entrance of the burnt slurry preparation facilities of the water, the gas-liquid point
Oil water mixture outlet from device connects the oil water mixture entrance of the burnt slurry preparation facilities of the water；
The burnt slurry gasification installation of water includes the burnt slurry entrance of water, syngas outlet and cinder outlet, the burnt slurry preparation facilities of the water
The burnt slurry outlet of water connect the burnt slurry entrance of water of the burnt slurry gasification installation of the water.
As the preferable scheme of the utility model, filter layer, the filter layer position are provided with the air collecting chamber of the pyrolysis oven
In the top of the Catalytic Layer.
As the preferable scheme of the utility model, inclined deflector is provided with the bottom of the air collecting chamber of the pyrolysis oven,
The deflector is located between second semicoke outlet and the furnace wall of pyrolysis oven.
As the preferable scheme of the utility model, the gas-liquid separation device also includes wastewater outlet, the wastewater outlet
Connect the cooling water inlet of the gas-liquid separation device.
As the preferable scheme of the utility model, the intracavity bottom of the burnt slurry gasification installation of the water is provided with cinder baffle plate.
Another object of the present utility model is to provide a kind of method that lignite is handled using said system, including following step
Suddenly：
Powdery brown coal is sent into the inner cylinder of pyrolysis oven, pyrolytic reaction occurs, 750~800 DEG C of pyrolysis temperature, generates waste coal A,
Gas and semicoke, the raw coke oven gas carry part semicoke and enter air collecting chamber by filter opening, and another part semicoke is gone out by the first semicoke
Mouth discharge；
B, the raw coke oven gas and the semicoke of carrying rise after entering the air collecting chamber, the semicoke and baffle plate of the part carrying
Collision rift falls, and is exported and discharged by the second semicoke；The raw coke oven gas carries out the catalytic pyrolysis of tar, obtains heat by Catalytic Layer
Oil gas is solved, the pyrolysis oil gas is discharged by pyrolysis oil gas vent；
C, after the pyrolysis oil gas being passed through into gas-liquid separation device, it is passed through cooling water and the pyrolysis oil gas is carried out by cooling is removed
Dirt, obtain pyrolysis gas and oil water mixture；
Water burnt slurry preparation facilities is sent into after first semicoke outlet and the second semicoke to be exported to the semicoke cooling of discharge D,
The oil water mixture is sent into the burnt slurry preparation facilities of the water, with dispersant, the burnt slurry of water is made；
E, the burnt slurry of the water is sent into the burnt slurry gasification installation of water, gasified at 1150~1350 DEG C, obtain synthesis gas and
Cinder.
Preferably, in the step B, the catalytic pyrolysis temperature of tar is 850~900 DEG C.
Further, the pyrolysis oil gas in the step B discharges the pyrolysis oven by filter layer after filtering.
As the preferable scheme of the utility model, the step C also produces waste water, using the waste water as cooling water, leads to
Enter the cooling water inlet of the gas-liquid separation device.
Preferably, granularity≤1mm of the powdery brown coal in the step A.
The system and method for classification processing lignite provided by the utility model, the pyrolysis of pyrolysis oven collection lignite, gas solid separation, Jiao
Oily catalytic pyrolysis, pyrolysis hydrocarbon filter improve the utilization rate of raw material in one；By catalytic cracking of tar, by raw coke oven gas
Tar conversion is pyrolysis gas, makes full use of raw coke oven gas waste heat, improves added value of product；The burnt slurry of water is prepared by oil water mixture,
The burnt slurry gasification of water-filling of going forward side by side, avoids the discharge of waste water, tar therein and dust-laden is further converted into the gas of high added value
Body, realize the recycling of dust-laden tar；The coupling gasified by pyrolysis of coal and the burnt slurry of water, realize the efficient profit of pyrolysis char
With finally realizing brown coal grading sub-prime and utilize.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment system.
Fig. 2 is the structure chart of the pyrolysis oven of the utility model embodiment.
Fig. 3 is the flow chart of the utility model embodiment method.
Embodiment
Below in conjunction with drawings and examples, specific embodiment of the present utility model is described in more details, with
Just the advantages of better understood when scheme and its various aspects of the present utility model.However, specific implementations described below side
Formula and embodiment are for illustrative purposes only, rather than to limitation of the present utility model.
" connection " described in the utility model, unless otherwise clear and definite regulation or limit, should broadly understood, Ke Yishi
It is joined directly together or is connected by intermediary.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of system of step-by-step processing lignite, including pyrolysis oven
1st, the burnt slurry preparation facilities 3 of gas-liquid separation device 2, water and the burnt slurry gasification installation 4 of water.The system of the present embodiment can be in pyrolysis oven 1
To catalytic cracking of tar, semicoke and oil water mixture are used to prepare the burnt slurry of water, avoid the discharge of sewage, realize tar again
Utilize.
As shown in Fig. 2 pyrolysis oven 1 is the pyrolysis installation of lignite, powdery brown coal can be pyrolyzed and be produced for solid, liquids and gases
Thing.Pyrolysis oven 1 is surrounded the chamber of a closing by furnace wall 11, and the top and bottom of pyrolysis oven 1 are taper, and middle part is cylinder.
The intracavitary of pyrolysis oven is provided with inner cylinder 12, and inner cylinder 12 will be divided into two chambers in pyrolysis oven, and the chamber in inner cylinder 12 is pyrolysis chamber, inner cylinder
Air collecting chamber is formed between 12 and the furnace wall 11 of pyrolysis oven.
Fine coal entrance 101 is provided with the top furnace roof of the inner cylinder 12 of pyrolysis oven, powdery brown coal is entered by fine coal entrance 101
In pyrolysis oven.Fine coal entrance 101 is connected with disc type solids distribution device 18, is easy to being uniformly distributed for fine coal.The inner chamber of inner cylinder 12
Temperature be 750~800 DEG C, lignite in inner cylinder 12 be heated, occur pyrolytic reaction, 6~9s of pyrolysis time (second), generation semicoke and
Raw coke oven gas, raw coke oven gas are the mixture of gas and tar.
Filter opening 105 is provided with the lower sidewall of inner cylinder 12, the raw coke oven gas in inner cylinder 12 enters air collecting chamber by filter opening 105,
The size of filter opening 105 is the mesh of 100 mesh~200.Be provided with the first semicoke outlet 103 in the bottom of furnace body of inner cylinder 12, inner cylinder it is exhausted big
Part semicoke passes through the discharge pyrolysis oven 1 of the first semicoke outlet 103.Least a portion of little particle semicoke passes through filter opening 105 with raw coke oven gas
Into air collecting chamber.
The top of air collecting chamber is provided with pyrolysis oil gas vent 102, and raw coke oven gas rises after entering air collecting chamber.It is provided with air collecting chamber
Baffle plate 13, baffle plate 13 is fixed on the inner side of furnace wall 11 or the outside of inner cylinder 12, positioned at the top of filter opening 105.With raw coke oven gas
Rise, its semicoke particle carried collides with baffle plate 13, semicoke particles fall to furnace bottom.The is provided with the bottom of air collecting chamber
Two semicokes outlet 104, the interior semicoke to fall of air collecting chamber is by the discharge of the second semicoke outlet 104.In the second semicoke outlet 104 and furnace wall
Deflector 16 is provided between 11, deflector 16 is obliquely installed, and the semicoke of whereabouts falls on deflector 16, can be straight along deflector 16
Connect and slide near the second semicoke outlet 104.
In air collecting chamber, the top of baffle plate 13 is provided with Catalytic Layer 14, and block tar cracking catalyst is included in Catalytic Layer 14
(catalyst is one kind in activated carbon, quick lime, dolomite), promote the catalytic pyrolysis of tar.The raw coke oven gas of rising leads to
Cross after baffle plate 13 and enter Catalytic Layer 14, the tar in raw coke oven gas cracks at 850~900 DEG C, obtains pyrolysis oil gas.
Filter layer 15 is additionally provided with the air collecting chamber of pyrolysis oven, filter layer 15 is located at the top of Catalytic Layer 14.Filter layer 15
Material is ceramic honeycomb filtering material, and pyrolysis oil gas can further filter solid particle therein by filter layer 15.Filtering
Pyrolysis oil gas afterwards discharges pyrolysis oven by being pyrolyzed oil gas vent 102.
Heater 17 is mounted in the inner cylinder 12 and air collecting chamber of pyrolysis oven, the cracking to be pyrolyzed with tar provides heat
Energy.The heater 17 of the present embodiment is heat accumulation type radiant tube, preferably can provide energy for pyrolysis oven.
The pyrolysis oven of the present embodiment integrates lignite pyrolysis, gas solid separation, catalytic cracking of tar, pyrolysis hydrocarbon filter,
Improve the utilization rate of raw material.By catalytic cracking of tar, it is pyrolysis gas by the tar conversion in raw coke oven gas, makes full use of raw coke oven gas
Waste heat, improve added value of product.
Gas-liquid separation device 2 is water spray system, for being pyrolyzed the cooling and dedusting of oil gas.Gas-liquid separation device 2 includes heat
Solve oil gas entrance 21, cooling water inlet 22, pyrolysis gas outlet 23 and oil water mixture outlet 24 and wastewater outlet 25.Pyrolysis oven
It is pyrolyzed the pyrolysis oil gas entrance 21 that oil gas vent 102 connects gas-liquid separation device.Pyrolysis oil gas is entered by pyrolysis oil gas entrance 21
Gas-liquid separation device 2, inject cooling water into gas-liquid separation device 2 from cooling water inlet 22.Cooling water inlet 22 is located at gas-liquid
The top of separator 2, after pyrolysis oil gas enters gas-liquid separation device 2, contacted with cooling water.Dust and tar therein are with cold
But water is fallen, and the pyrolysis gas of acquisition is discharged by pyrolysis gas outlet 23, and pyrolysis gas feeding storage facilities are stored.The oil fallen
Aqueous mixtures are by the discharge of oil water mixture outlet 24.
Preferably, the wastewater outlet 25 of the present embodiment connects the cooling water inlet 22 of gas-liquid separation device.Discharge gas-liquid point
From the waste water of device 2, gas-liquid separation device 2 can be again introduced into as cooling water, realize recycling for water, adjust gas-liquid separation
Water level in device 2.
The burnt slurry preparation facilities 3 of water is mechanical agitation mixing arrangement, for the preparation of the burnt slurry of water, including semicoke entrance 31, oil
The burnt slurry outlet 34 of aqueous mixtures entrance 32, dispersant entrance 33 and water.The first semicoke outlet 103 of pyrolysis oven and the second semicoke go out
Mouth 104 connects the semicoke entrances 31 of the burnt slurry preparation facilities of water, and the oil water mixture outlet 24 of gas-liquid separation device connects the burnt slurry of water
The oil water mixture entrance 32 of preparation facilities.Semicoke caused by pyrolysis oven 1 enters the burnt slurry preparation facilities 3, Xiang Shui of water after cooling
Addition dispersant in Jiao's slurry preparation facilities 3, oil water mixture caused by gas-liquid separation device 2 enter the burnt slurry preparation facilities 3 of water, with
Semicoke and dispersant, the burnt slurry of water is made.The addition of dispersant is the 0.1%-1.0% of semicoke quality, and obtained water is burnt
The concentration of slurry is 60-70%.
The burnt slurry gasification installation 4 of water is water and coke pulp gasifying furnace, for preparing synthesis gas using water Jiao's slurry.The burnt slurry gasification installation of water
Including the burnt slurry entrance 41 of water, oxygen rich gas entrance 42, syngas outlet 43, Quench agent entrance 44 and cinder outlet 47.The burnt slurry of water
Entrance 41 and oxygen rich gas entrance 42 are arranged on the top of the burnt slurry gasification installation 4 of water, are starched so that water is burnt abundant with oxygen rich gas
Mixing.The burnt slurry entrance 41 of water of the burnt burnt slurry gasification installation of connection water of slurry outlet 34 of water of the burnt slurry preparation facilities of water.The burnt slurry of water is in water
Gasify in Jiao's slurry gasification installation 4,1150~1350 DEG C of gasification temperature, 2.5~10MPa of vapor pressure.The synthesis gas of acquisition is by closing
It is collected into gas outlet 43, cinder is by the discharge of cinder outlet 47.
Preferably, cinder baffle plate 45 and cinder scraper plate 46 are provided with the bottom of burnt slurry gasification installation 4 inner chamber of water.Cinder baffle plate
45 are obliquely installed, and cinder baffle plate 45 is 30-75 ° with horizontal sextant angle, and cinder can be guided to cinder outlet 47.Cinder scraper plate 46
Above cinder baffle plate 45, cinder baffle plate 45 and the junction of the side wall of the burnt slurry gasification installation 4 of water are arranged on, rotation can be carried out and scraped
Except the cinder remained on cinder baffle plate 45.
The present embodiment prepares the burnt slurry of water by oil water mixture, the burnt slurry gasification of water-filling of going forward side by side, avoids the discharge of waste water, enters
Tar therein and dust-laden are converted into the gas of high added value by one step, realize the recycling of dust-laden tar；By pyrolysis of coal with
The coupling of the burnt slurry gasification of water, realizes the efficient utilization of pyrolysis char, finally realizes brown coal grading sub-prime and utilize.
As shown in figure 3, on the other hand, a kind of method that lignite is handled using said system of the present embodiment offer, including with
Lower step：
The 1st, granularity≤1mm powdery brown coal is sent into the inner cylinder of pyrolysis oven, pyrolytic reaction, pyrolysis temperature 750~800 occurs
DEG C, 6~9s of duration generates raw coke oven gas and semicoke, and raw coke oven gas carries part semicoke and enters air collecting chamber, another part half by filter opening
Burnt exported by the first semicoke is discharged.
2nd, raw coke oven gas and the semicoke of carrying rise after entering air collecting chamber, are fallen after semicoke and stop collision that part carries,
Exported and discharged by the second semicoke；Raw coke oven gas carries out the catalytic pyrolysis of tar, catalytic pyrolysis temperature is 850~900 by Catalytic Layer
DEG C, pyrolysis oil gas is obtained, pyrolysis oil gas is further filtered by filter layer, discharged afterwards by pyrolysis oil gas vent.
3rd, after pyrolysis oil gas being passed through into gas-liquid separation device, it is passed through cooling water and cooling and dedusting is carried out to pyrolysis oil gas, obtain
Pyrolysis gas, oil water mixture and waste water.
The burnt slurry preparation facilities of water is sent into the 4th, the outlet of first semicoke and the second semicoke to be exported to the semicoke cooling of discharge after, by oil
Aqueous mixtures are sent into the burnt slurry preparation facilities of water, and with dispersant, the burnt slurry of water is made；The addition of dispersant is semicoke quality
0.1~1%.
5th, the burnt slurry of water is sent into the burnt slurry gasification installation of water, gasified at 1150~1350 DEG C, vapor pressure 2.5~
10MPa, obtain synthesis gas and cinder.
Preferably, in step 3, using waste water as cooling water, it is passed through the cooling water inlet of gas-liquid separation device.
Embodiment 1
1st, granularity≤1mm will be crushed to after brown coal drying, powdery brown coal is sent into the inner cylinder of pyrolysis oven, it is anti-that pyrolysis occurs
Should, 750 DEG C, duration 9s of pyrolysis temperature generates raw coke oven gas and semicoke, and raw coke oven gas carries part semicoke and enters gas collection by filter opening
Chamber, another part semicoke are exported by the first semicoke and discharged.
2nd, raw coke oven gas and the semicoke of carrying rise after entering air collecting chamber, are fallen after semicoke and stop collision that part carries,
Exported and discharged by the second semicoke；Raw coke oven gas carries out the catalytic pyrolysis of tar, catalytic pyrolysis temperature is 900 DEG C, is obtained by Catalytic Layer
Oil gas must be pyrolyzed, pyrolysis oil gas is further filtered by filter layer, discharged afterwards by pyrolysis oil gas vent.
3rd, after pyrolysis oil gas being passed through into gas-liquid separation device, it is passed through cooling water and cooling and dedusting is carried out to pyrolysis oil gas, obtain
Pyrolysis gas, oil water mixture and waste water；Using waste water as cooling water, the cooling water inlet of gas-liquid separation device is passed through.
The burnt slurry preparation facilities of water is sent into the 4th, the outlet of first semicoke and the second semicoke to be exported to the semicoke cooling of discharge after, by oil
Aqueous mixtures are sent into the burnt slurry preparation facilities of water, and with dispersant, the burnt slurry of water is made；The addition of dispersant is semicoke quality
0.5%, the concentration that the burnt slurry of water is made is 63%.
5th, the burnt slurry of water is sent into the burnt slurry gasification installation of water, is gasified at 1200 DEG C, vapor pressure 3MPa, obtain synthesis gas
And cinder.
Embodiment 2
1st, granularity≤1mm will be crushed to after brown coal drying, powdery brown coal is sent into the inner cylinder of pyrolysis oven, it is anti-that pyrolysis occurs
Should, 800 DEG C, duration 6s of pyrolysis temperature generates raw coke oven gas and semicoke, and raw coke oven gas carries part semicoke and enters gas collection by filter opening
Chamber, another part semicoke are exported by the first semicoke and discharged.
2nd, raw coke oven gas and the semicoke of carrying rise after entering air collecting chamber, are fallen after semicoke and stop collision that part carries,
Exported and discharged by the second semicoke；Raw coke oven gas carries out the catalytic pyrolysis of tar, catalytic pyrolysis temperature is 850 DEG C, is obtained by Catalytic Layer
Oil gas must be pyrolyzed, pyrolysis oil gas is further filtered by filter layer, discharged afterwards by pyrolysis oil gas vent.
3rd, after pyrolysis oil gas being passed through into gas-liquid separation device, it is passed through cooling water and cooling and dedusting is carried out to pyrolysis oil gas, obtain
Pyrolysis gas, oil water mixture and waste water；Using waste water as cooling water, the cooling water inlet of gas-liquid separation device is passed through.
The burnt slurry preparation facilities of water is sent into the 4th, the outlet of first semicoke and the second semicoke to be exported to the semicoke cooling of discharge after, by oil
Aqueous mixtures are sent into the burnt slurry preparation facilities of water, and with dispersant, the burnt slurry of water is made；The addition of dispersant is semicoke quality
0.1%, the concentration that the burnt slurry of water is made is 60%.
5th, the burnt slurry of water is sent into the burnt slurry gasification installation of water, is gasified at 1150 DEG C, vapor pressure 2.5MPa, synthesized
Gas and cinder.
Embodiment 3
1st, granularity≤1mm will be crushed to after brown coal drying, powdery brown coal is sent into the inner cylinder of pyrolysis oven, it is anti-that pyrolysis occurs
Should, 780 DEG C, duration 8s of pyrolysis temperature generates raw coke oven gas and semicoke, and raw coke oven gas carries part semicoke and enters gas collection by filter opening
Chamber, another part semicoke are exported by the first semicoke and discharged.
2nd, raw coke oven gas and the semicoke of carrying rise after entering air collecting chamber, are fallen after semicoke and stop collision that part carries,
Exported and discharged by the second semicoke；Raw coke oven gas carries out the catalytic pyrolysis of tar, catalytic pyrolysis temperature is 870 DEG C, is obtained by Catalytic Layer
Oil gas must be pyrolyzed, pyrolysis oil gas is further filtered by filter layer, discharged afterwards by pyrolysis oil gas vent.
3rd, after pyrolysis oil gas being passed through into gas-liquid separation device, it is passed through cooling water and cooling and dedusting is carried out to pyrolysis oil gas, obtain
Pyrolysis gas, oil water mixture and waste water；Using waste water as cooling water, the cooling water inlet of gas-liquid separation device is passed through.
The burnt slurry preparation facilities of water is sent into the 4th, the outlet of first semicoke and the second semicoke to be exported to the semicoke cooling of discharge after, by oil
Aqueous mixtures are sent into the burnt slurry preparation facilities of water, and with dispersant, the burnt slurry of water is made；The addition of dispersant is semicoke quality
1%, the concentration that the burnt slurry of water is made is 70%.
5th, the burnt slurry of water is sent into the burnt slurry gasification installation of water, is gasified at 1350 DEG C, vapor pressure 10MPa, synthesized
Gas and cinder.
It should be noted that each embodiment above by reference to described by accompanying drawing is only illustrating the utility model rather than limit
The scope of the utility model processed, it will be understood by those within the art that, do not departing from spirit of the present utility model and model
The modification carried out on the premise of enclosing to the utility model or equivalent substitution, all should cover within the scope of the utility model.
In addition, signified outer unless the context, the word occurred in the singular includes plural form, and vice versa.In addition, except non-specifically
Explanation, then all or part of of any embodiment can combine all or part of of any other embodiment and use.
Claims (5)
- A kind of 1. system of step-by-step processing lignite, it is characterised in that including：Pyrolysis oven, the intracavitary of the pyrolysis oven is provided with inner cylinder, air collecting chamber is formed between the furnace wall of the inner cylinder and pyrolysis oven, described The fine coal entrance of pyrolysis oven is located at the top of the inner cylinder, and the lower sidewall of the inner cylinder is provided with filter opening, set in the air collecting chamber There is baffle plate, the top of the baffle plate is Catalytic Layer, and the top of the air collecting chamber is provided with pyrolysis oil gas vent, the bottom of the inner cylinder Exported provided with the first semicoke, the bottom of the air collecting chamber exports provided with the second semicoke；Gas-liquid separation device, including pyrolysis oil gas entrance, cooling water inlet, pyrolysis gas outlet and oil water mixture outlet, it is described The pyrolysis oil gas vent of pyrolysis oven connects the pyrolysis oil gas entrance of the gas-liquid separation device；The burnt slurry preparation facilities of water, including the burnt slurry outlet of semicoke entrance, oil water mixture entrance, dispersant entrance and water, the heat Solve the first semicoke outlet of stove and the outlet of the second semicoke and connect the semicoke entrance of the burnt slurry preparation facilities of the water, the gas-liquid separation The oil water mixture outlet of device connects the oil water mixture entrance of the burnt slurry preparation facilities of the water；The burnt slurry gasification installation of water, including the burnt slurry entrance of water, syngas outlet and cinder outlet, the water of the burnt slurry preparation facilities of the water The outlet of Jiao's slurry connects the burnt slurry entrance of water of the burnt slurry gasification installation of the water.
- 2. system according to claim 1, it is characterised in that filter layer is provided with the air collecting chamber of the pyrolysis oven, it is described Filter layer is located at the top of the Catalytic Layer.
- 3. system according to claim 1, it is characterised in that be provided with the bottom of the air collecting chamber of the pyrolysis oven inclined Deflector, the deflector are located between second semicoke outlet and the furnace wall of pyrolysis oven.
- 4. system according to claim 1, it is characterised in that the gas-liquid separation device also includes wastewater outlet, described Wastewater outlet connects the cooling water inlet of the gas-liquid separation device.
- 5. system according to claim 1, it is characterised in that the intracavity bottom of the burnt slurry gasification installation of the water is provided with cinder Baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720892034.5U CN207031355U (en) | 2017-07-21 | 2017-07-21 | A kind of system of step-by-step processing lignite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720892034.5U CN207031355U (en) | 2017-07-21 | 2017-07-21 | A kind of system of step-by-step processing lignite |
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| Publication Number | Publication Date |
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| CN207031355U true CN207031355U (en) | 2018-02-23 |
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ID=61465329
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| CN201720892034.5U Expired - Fee Related CN207031355U (en) | 2017-07-21 | 2017-07-21 | A kind of system of step-by-step processing lignite |
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2017
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