CN104164244A - Coal full-grain size grading pyrolysis and active coke preparation coupling process and system in coal gas circulating - Google Patents
Coal full-grain size grading pyrolysis and active coke preparation coupling process and system in coal gas circulating Download PDFInfo
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Abstract
The invention provides a coal full-grain size grading pyrolysis and active coke preparation coupling process and system in coal gas circulating. The process comprises the following steps: dividing raw coal into slack coal and pea coal through a raw coal preheating and grading system and drying the raw coal by utilizing high temperature flue gas discharged by a coal gas heating furnace; with the obtained steam-containing tail gas as an activating agent and pyrolysis coal gas generated by the coal gas heating furnace per se as an activating agent heating flue, enabling the obtained high temperature activating agent to be in direct contact with high temperature semicoke from a slack coal pyrolyzing furnace and a pea coal pyrolyzing furnace to activate the semicoke. The process provided by the invention has the advantages that raw coal pyrolysis is coupled with active coke preparation and the coal gas generated by the pyrolysis is utilized to serve as the energy of active coke activation, so that the production cost is low; water carried by the raw coal per se serves as the source of a steam activating agent, so that water is saved in the production process; the high temperature semicoke from the pyrolyzing furnaces is in direct contact with the high temperature activating agent to be activated and the sensible heat of the high temperature semicoke is utilized, so that the production energy consumption is low; gas containing combustible components generated by activation serves as the compensatory fuel of the pyrolysis, so that the energy recycling efficiency is high.
Description
Technical field
The present invention relates to technical field of coal chemical industry, be specifically related to a kind of coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology and system.
Background technology
Activated coke is to have comparatively flourishing pore passage structure and compared with the active carbonaceous sorbing material of bigger serface taking coal as main raw material through special producing explained hereafter a kind of, it has the features such as high adsorption capacity, chemical stability be good, be widely used in sewage disposal, the environmental improvement fields such as flue gas desulfuration and denitrification.
Activated coke and gac belong to the carbonaceous material with special adsorption function together, but activated coke is cheap compared with the most obvious advantage of gac.At present traditional coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation method is taking raw coal as raw material, after washing, fragmentation, mix as pitch with binding agent, and extrusion molding, then charing, activation makes.The traditional process of manufacturing energy consumption is large, cost is high, pollution is large.
Publication number is the invention of CN103723727A, a kind of coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation system and method are disclosed, this system comprises pyrolysis oven, the burnt outlet of pyrolysis of pyrolysis oven is connected with coke dry quenching furnace entrance, the burnt outlet of cooling pyrolysis of coke dry quenching furnace is connected with crusher, crusher outlet is connected with dry method cull eliminator, the burnt outlet of heat of dry method cull eliminator is connected with sieve apparatus, the large granular materials outlet of sieve apparatus is communicated with activation furnace opening for feed, the small particle outlet of sieve apparatus is connected with forming machine, forming machine discharge port is communicated with activation furnace opening for feed, after the burnt fragmentation of pyrolysis that pulverized coal pyrolysis is produced through moulding, activation can make activated coke.
There is following shortcoming in this technical scheme:
1, in pulverized coal pyrolysis process, have phenolic wastewater to produce, pollutant emission is large;
2, the pyrolysis gas powder containing quantity producing in pulverized coal pyrolysis process is high, has dedusting difficulty, and the tar dustiness of recovery is high;
2, activator is water vapour, and compensating fresh activator need obtain after evaporation, and water loss is large;
3, the high temperature semicoke after pyrolysis is cooling through rare gas element, then sieve classification, and grain Jiao directly enters activation furnace, and coke powder enters activation furnace after moulding again, and the activation that then heats up together, exists that operation is loaded down with trivial details, equipment is many, investment is large, energy consumption is high.
Summary of the invention
The invention provides a kind of coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology in order to solve the problems of the technologies described above, utilize raw coal dried tail gas to make the activator of priming reaction, and the coal gas that utilizes pyrolysis to produce does activator heating fuel, reduce power consumption and water consumption prepared by activated coke, and the waste heat in technique is fully recycled to save energy.
The present invention adopts following technical scheme:
A kind of coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology, comprises the steps:
A, raw coal is divided into smalls and beans through raw coal preheating hierarchy system;
B, smalls is sent into the pyrolysis of smalls pyrolysis oven, beans is sent into the pyrolysis of beans pyrolysis oven;
The smalls pyrolysis coal gas that c, smalls pyrolysis produce is sent in beans pyrolysis oven as the thermal source of beans pyrolysis, and the high-temperature semi-coke powder that smalls pyrolysis produces and the high temperature semicoke grain of beans pyrolysis generation all enter and in semicoke activation furnace, carry out priming reaction;
The filter material layer that d, beans form in beans pyrolysis oven filters smalls pyrolysis coal gas, and the pyrolysis coal gas after filtering is carried out, after meticulous dedusting and cooling recovery tar products, obtaining clean gas;
E, clean gas are divided into three parts, and a part is sent in activator process furnace as fuel, and a part is sent in gas-fired furnace and heated as gaseous heat-carrier, and another part is sent in gas-fired furnace as fuel;
F, gaseous heat-carrier become coal gas of high temperature after by gas-fired furnace indirect heating, send in smalls pyrolysis oven as the thermal source of smalls pyrolysis, and the high-temperature flue gas that gas-fired furnace produces is sent in raw coal preheating hierarchy system as the thermal source of raw coal preheating;
The containing water vapor tail gas of g, the pre-thermosetting of raw coal is divided into two portions, a part is directly emptying as tail gas, another part is mixed to form high-temperature activation gas mixture as the flue gas producing in activator and activator process furnace, then sends into participating in activation reaction in semicoke activation furnace;
The gas containing combustibleconstituents that h, semicoke priming reaction produce is sent in gas-fired furnace as auxiliary fuel, and the activated coke that semicoke priming reaction produces is directly exported as product after cooling.
The present invention adopts pyrolytic process of coal coupling activated coke preparation technology, utilize the high-temperature flue gas of gas-fired furnace discharge to remove dry raw coal, the containing water vapor tail gas obtaining is as activator, utilize the source of the self-contained water of raw coal as water vapour, and utilize the pyrolysis coal gas self producing as activator heating fuel, the high-temperature activation agent that obtains directly with contact from the high temperature semicoke of smalls pyrolysis oven and beans pyrolysis oven, semicoke is activated, reach water saving, energy-conservation object; The gas containing combustibleconstituents producing in semicoke reactivation process enters gas-fired furnace burning, for pyrolysis provides portion of energy, reaches the recycle of energy and the non-pollution discharge of gas.
The present invention adopts raw coal preheating hierarchy system that raw coal is divided into smalls and the beans that particle size range is different, the coal gas that utilizes self technique to produce becomes coal gas of high temperature after gas-fired furnace indirect heating, as the thermal source of smalls pyrolysis, and the high temperature smalls pyrolysis coal gas producing after smalls pyrolysis is as the thermal source of beans pyrolysis, take full advantage of the waste heat of material and gas, reach the even pyrolysis of coal classification, improve the object of pyrolysis gas yield and the tar rate of recovery, and saved mass energy, production cost reduces.Utilize the filter material layer that beans forms in beans pyrolysis oven to carry out dedusting, tentatively cooling to sending into the high temperature pyrolysis coal gas of beans pyrolysis oven, for follow-up pyrolysis coal gas essence dedusting and eventually cold reduction burden, reach the dustiness of the tar that reduces system recoveries, improve the object of tar quality, utilize beans to reclaim the heat of high temperature smalls pyrolysis coal gas simultaneously, reach the recycling of heat.
Preferably, in described steps d, the coal dust of pyrolysis coal gas after meticulous dedusting directly exported as product.
Preferably, the coal gas of high temperature temperature producing in described step g is 750 ~ 850 DEG C, can, to the heating of smalls fast fluidization, complete flash pyrolysis.
The component of the high-temperature activation gas mixture producing in described step g is 46.6% H
2o, 17.3% CO
2with 36.1% N
2.
Utilize coal gas of high temperature to carry out the pyrolysis of fluidisation flash to smalls, pyrolysis reactions steps in the middle of reducing, reduces pyrolysis precipitate in the residence time of high-temperature zone, avoids the secondary pyrolysis of precipitate, improves the productive rate of pyrolysis coal gas and tar.
The present invention also provides a kind of coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation system for technique described in the claims, comprising:
Raw coal preheating hierarchy system, beans pyrolysis oven, semicoke activation furnace, smalls pyrolysis oven, activator process furnace, pyrolysis gas treatment system and gas-fired furnace; The discharge port of described raw coal preheating hierarchy system is connected with the feeding mouth of smalls pyrolysis oven with beans pyrolysis oven respectively, and the dry gas outlet of raw coal preheating hierarchy system is divided into two-way, and a road is directly communicated with atmosphere, and another road is connected with the outlet of activator flue gas of heating furnace; The pyrolysis gas exit of described beans pyrolysis oven is connected with the import of pyrolysis gas treatment system, and the material outlet of beans pyrolysis oven is connected with the entrance of semicoke activation furnace; The pyrolysis gas exit of described smalls pyrolysis oven is connected with the thermal source entrance of beans pyrolysis oven, and the material outlet of smalls pyrolysis oven is connected with the entrance of semicoke activation furnace; The material outlet output activated coke product of described semicoke activation furnace, the venting port of semicoke activation furnace is connected with the auxiliary fuel entrance of gas-fired furnace; The outlet of described activator process furnace is connected with the activator entrance of semicoke activation furnace; Described pyrolysis gas treatment system comprises meticulous fly-ash separator and the coal gas cooling device that pipeline is connected, the pyrolysis gas exit of described beans pyrolysis oven is connected with the import of this meticulous fly-ash separator, the gas exit of described coal gas cooling device is connected with fuel inlet with the fuel inlet of activator process furnace and the gas entry of gas-fired furnace respectively, the material outlet of coal gas cooling device is directly exported tar products, directly output coal dust product of the dust-removing powder outlet of described meticulous fly-ash separator; The coal gas of high temperature outlet of described gas-fired furnace is connected with the thermal source entrance of smalls pyrolysis oven, and the exhanst gas outlet of gas-fired furnace is connected with the thermal source entrance of raw coal preheating hierarchy system.
From above technical scheme, the present invention adopts former pyrolysis of coal and activated coke preparation coupling, and the raw material sources of preparation activated coke are wide, utilize the coal gas of pyrolysis generation as the energy of activated coke activation, and production cost is low; Utilize the source of the self-contained water of raw coal as steam activation agent, production process water saving; Utilize from the high temperature semicoke of pyrolysis oven directly and high-temperature activation agent contact activation, utilized the sensible heat of high temperature semicoke, production energy consumption is low; The gas containing combustibleconstituents that activation produces is as the compensate for fuel of pyrolysis, and energy recovery utilising efficiency is high.
The present invention adopts the mode of gaseous heat-carrier, to the even pyrolysis of raw coal wholegrain radial sector, utilize the clean gas self producing as gaseous heat-carrier, smalls is carried out to quick flash distillation pyrolysis, and utilize the high temperature pyrolysis coal gas that smalls pyrolysis produces to provide thermal source for beans pyrolysis; Utilize the filter material layer that beans forms in pyrolysis oven to carry out filtrate dedusting to the high temperature smalls pyrolysis coal gas entering in stove, efficiency of dust collection is high, and the pyrolysis coal gas that has simultaneously overcome high dust-laden forms the shortcoming that goo causes meticulous fly-ash separator to stop up because of tar and the coal dust of condensation; Utilize beans to absorb the part sensible heat of high temperature smalls pyrolysis coal gas, realized the recovery of heat, reduced the temperature of pyrolysis coal gas simultaneously, alleviated the burden that subsequent thermal solution gas processing system cools.
Brief description of the drawings
Fig. 1 is coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology's of the present invention schema;
Fig. 2 is the schematic diagram of coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation system of the present invention.
In figure: 100, raw coal preheating hierarchy system, 110, fly-ash separator, 120, desulfurizer, 101, raw coal, 102, cryodrying gas, 103, beans, 104, smalls, 111, dried tail gas, 112, dirt powder, 121, moisture vapor tail gas, 122, tail gas, 123, activator;
200, beans pyrolysis oven, 201, pyrolysis coal gas, 202, high temperature semicoke grain;
300, semicoke activation furnace, 301, activated coke product, 302, gas-fired furnace auxiliary fuel;
400, smalls pyrolysis oven, 401, smalls pyrolysis coal gas, 402, high-temperature semi-coke powder;
500, activator process furnace, 501, flue gas, 502, high-temperature activation gas mixture;
600, pyrolysis gas treatment system, 610, meticulous fly-ash separator, 620, coal gas cooling device, 611, smart dedusting pyrolysis gas, 612, coal dust, 621, tar products, 622, clean gas, 623, activator process furnace fuel, 624, gaseous heat-carrier, 625, gas-fired furnace fuel;
700, gas-fired furnace, 701, coal gas of high temperature, 702, high-temperature flue gas.
Embodiment
Below in conjunction with accompanying drawing, a kind of preferred implementation of the present invention is described in detail.
As shown in Figure 2, coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation system of the present invention comprises: raw coal preheating hierarchy system 100, beans pyrolysis oven 200, semicoke activation furnace 300, smalls pyrolysis oven 400, activator process furnace 500, pyrolysis gas treatment system 600 and gas-fired furnace 700.Described raw coal preheating hierarchy system 100 also comprises fly-ash separator 110 and desulfurizer 120, and described pyrolysis gas treatment system 600 comprises meticulous fly-ash separator 610 and coal gas cooling device 620.
Described raw coal preheating hierarchy system 100 is taking raw coal as raw material, be provided with three outlets of smalls, beans and cryodrying gas, wherein the outlet of smalls is connected with smalls pyrolysis oven feeding mouth, the outlet of beans is connected with beans pyrolysis oven feeding mouth, the outlet of cryodrying gas is connected with the entrance of fly-ash separator, the outlet of described fly-ash separator is connected with the entrance of desulfurizer, the dirt powder outlet of fly-ash separator is connected with the material inlet of smalls pyrolysis oven, the outlet of described desulfurizer is divided into two-way, one tunnel is directly communicated with atmosphere, and another road is connected with the exhanst gas outlet of activator process furnace.
The coal gas of high temperature that the thermal source of described smalls pyrolysis oven 400 is carried by gas-fired furnace provides, smalls pyrolysis oven is provided with smalls pyrolysis gas exit and high-temperature semi-coke powder outlet, smalls pyrolysis gas exit is connected with the thermal source entrance of beans pyrolysis oven, and high-temperature semi-coke powder outlet is connected with the entrance of semicoke activation furnace.
The high temperature smalls pyrolyzing coal air lift that the thermal source of described beans pyrolysis oven 200 is produced by smalls pyrolysis supplies, beans pyrolysis oven is provided with pyrolysis gas exit and the outlet of high temperature semicoke grain, wherein pyrolysis gas exit is connected with the pyrolysis gas entrance of meticulous fly-ash separator, and the outlet of high temperature semicoke grain is connected with the entrance of semicoke activation furnace.Described semicoke activation furnace 300 is provided with venting port and material outlet, and wherein venting port is connected with the auxiliary fuel entrance of gas-fired furnace, and material outlet is directly as activated coke output of products.
The dust-removing powder of described meticulous fly-ash separator 610 exports directly as coal dust output of products, the pyrolysis gas outlet of meticulous fly-ash separator is connected with the entrance of coal gas cooling device, the material outlet of coal gas cooling device 620 is directly exported as tar products, the clean gas outlet of coal gas cooling device is divided into three tunnels, one tunnel is connected with the fuel inlet of activator process furnace as fuel, one tunnel is connected with the gas entry of gas-fired furnace as gaseous heat-carrier, another road is connected with the fuel inlet of gas-fired furnace as fuel, the clean gas exit of coal gas cooling device is also provided with the gas compressor for positive delivery clean gas.
The outlet of described activator process furnace 500 is connected with the activator entrance of semicoke activation furnace.
Described gas-fired furnace 700 is provided with coal gas of high temperature outlet and high-temperature flue gas outlet, and wherein coal gas of high temperature outlet is connected with the thermal source entrance of smalls pyrolysis oven, and high-temperature flue gas outlet is connected with the thermal source entrance of raw coal preheating hierarchy system.
With reference to Fig. 1, coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology flow process of the present invention is described below:
Utilize preheating hierarchy system 100 that raw coal 101 is divided into and is less than or equal to the smalls 104 of 5mm and the beans 103 of 5～50mm, utilize from 300 DEG C of high-temperature flue gas 702 of gas-fired furnace simultaneously raw coal is carried out to preheating and drying, the dried tail gas 111 of the cryodrying gas 102 producing after fly-ash separator 110 dedustings delivered in desulfurizer 120, the moisture vapor tail gas 121 that desulfurization forms after processing is divided into two portions, a part is directly emptying as tail gas 122, another part is mixed to form high-temperature activation gas mixture 502 as the flue gas 501 producing in activator 123 and activator process furnace, then send into participating in activation reaction in semicoke activation furnace, the dirt powder 112 of this fly-ash separator enters smalls pyrolysis oven 400 after mixing with smalls 104.
Described beans 103 enters beans pyrolysis oven 200, wherein the utilization of smalls pyrolysis oven is heated smalls fast fluidization from the coal gas of high temperature 701 of 750 ~ 850 DEG C of gas-fired furnace, flash pyrolysis, the smalls pyrolysis coal gas 401 of 600～650 DEG C that pyrolysis forms enters beans pyrolysis oven 200 as thermal source, beans 103 is carried out to pyrolysis, the filter material layer that beans forms in beans pyrolysis oven simultaneously filters smalls pyrolysis coal gas, by in pyrolysis gas >=trapping dust of 20 μ m, after beans filter material layer dust removal by filtration, the pyrolysis coal gas 201 of approximately 200 DEG C is sent into pyrolysis gas treatment system 600 and is carried out meticulous dedusting, cooling recovery obtains tar products 622.
Meticulous fly-ash separator 610 first carries out meticulous dedusting to pyrolysis coal gas 201, smart dedusting pyrolysis gas 611 after meticulous dedusting is sent in coal gas cooling device 620, cooling recovery output tar products 621, and export low temperature clean gas 622, these Filter Tuber For Clean Coal 622 gas are divided into three parts, a part is sent in activator process furnace as activator process furnace fuel 623, and a part is sent in gas-fired furnace as gaseous heat-carrier 624, and another part is sent in gas-fired furnace as gas-fired furnace fuel 625.
From 120 DEG C of left and right activators 123 of raw coal preheating hierarchy system, wherein contain water vapour inertia tail gas, the flue gas 501 that this activator and activator reheating furnace produce mixes, obtain 800 ~ 900 DEG C moisture, containing CO
2, N
2high-temperature activation gas mixture 502, then enter semicoke activation furnace 300 together with the high temperature semicoke grain 202 of 550 ~ 600 DEG C producing in the high-temperature semi-coke powder 402 of 600～650 DEG C producing in described smalls pyrolysis oven and beans pyrolysis oven, after the priming reaction of 40 ~ 80min, make activated coke product 301 and export, the gas (H containing combustibleconstituents of semicoke activation furnace outlet
2and CO) enter in gas-fired furnace 700, as gas-fired furnace auxiliary fuel 302.
Gaseous heat-carrier 624 utilizes gas-fired furnace 700 indirect heating, is further warming up to the coal gas of high temperature 701 of 750 ~ 850 DEG C, then sends into smalls pyrolysis oven 400, as the thermal source of smalls pyrolysis.The high-temperature flue gas 702 of approximately 300 DEG C that gas-fired furnace burning produces is sent into raw coal preheating hierarchy system 100 as the thermal source of raw coal preheating.
The above embodiment is only that the preferred embodiment of the present invention is described; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skill in the art make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (5)
1. a coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology, is characterized in that, comprises the steps:
A, raw coal is divided into smalls and beans through raw coal preheating hierarchy system;
B, smalls is sent into the pyrolysis of smalls pyrolysis oven, beans is sent into the pyrolysis of beans pyrolysis oven;
The smalls pyrolysis coal gas that c, smalls pyrolysis produce is sent in beans pyrolysis oven as the thermal source of beans pyrolysis, and the high-temperature semi-coke powder that smalls pyrolysis produces and the high temperature semicoke grain of beans pyrolysis generation all enter and in semicoke activation furnace, carry out priming reaction;
The filter material layer that d, beans form in beans pyrolysis oven filters smalls pyrolysis coal gas, and the pyrolysis coal gas after filtering is carried out, after meticulous dedusting and cooling recovery tar, obtaining clean gas;
E, clean gas are divided into three parts, and a part is sent in activator process furnace as fuel, and a part is sent in gas-fired furnace and heated as gaseous heat-carrier, and another part is sent in gas-fired furnace as fuel;
F, gaseous heat-carrier become coal gas of high temperature after by gas-fired furnace indirect heating, send in smalls pyrolysis oven as the thermal source of smalls pyrolysis, and the high-temperature flue gas that gas-fired furnace produces is sent in raw coal preheating hierarchy system as the thermal source of raw coal preheating;
The containing water vapor tail gas of g, the pre-thermosetting of raw coal is divided into two portions, a part is directly emptying as tail gas, another part is mixed to form high-temperature activation gas mixture as the flue gas producing in activator and activator process furnace, then sends into participating in activation reaction in semicoke activation furnace;
The gas containing combustibleconstituents that h, semicoke priming reaction produce is sent in gas-fired furnace as auxiliary fuel, and the activated coke that semicoke priming reaction produces is directly exported as product after cooling.
2. coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology according to claim 1, is characterized in that, in described steps d, the coal dust of pyrolysis coal gas after meticulous dedusting directly exported as product.
3. coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology according to claim 1, is characterized in that, the coal gas of high temperature temperature producing in described step g is 750 ~ 850 DEG C, can, to the heating of smalls fast fluidization, complete flash pyrolysis.
4. coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation technology according to claim 1, is characterized in that, the component of the high-temperature activation gas mixture producing in described step g is 46.6% H
2o, 17.3% CO
2with 36.1% N
2.
5. for a coal gas circulation coal wholegrain radial sector pyrolysis coupling activated coke preparation system for technique described in claim 1, it is characterized in that, comprising:
Raw coal preheating hierarchy system (100), beans pyrolysis oven (200), semicoke activation furnace (300), smalls pyrolysis oven (400), activator process furnace (500), pyrolysis gas treatment system (600) and gas-fired furnace (700);
The discharge port of described raw coal preheating hierarchy system (100) is connected with the feeding mouth of smalls pyrolysis oven with beans pyrolysis oven respectively, the dry gas outlet of raw coal preheating hierarchy system is divided into two-way, one tunnel is directly communicated with atmosphere, and another road is connected with the exhanst gas outlet of activator process furnace;
The pyrolysis gas exit of described beans pyrolysis oven (200) is connected with the import of pyrolysis gas treatment system, and the material outlet of beans pyrolysis oven is connected with the entrance of semicoke activation furnace;
The pyrolysis gas exit of described smalls pyrolysis oven (400) is connected with the thermal source entrance of beans pyrolysis oven, and the material outlet of smalls pyrolysis oven is connected with the entrance of semicoke activation furnace;
The material outlet output activated coke product of described semicoke activation furnace (300), the venting port of semicoke activation furnace is connected with the auxiliary fuel entrance of gas-fired furnace;
The outlet of described activator process furnace (500) is connected with the activator entrance of semicoke activation furnace;
Described pyrolysis gas treatment system (600) comprises meticulous fly-ash separator (610) and the coal gas cooling device (620) that pipeline is connected, the pyrolysis gas exit of described beans pyrolysis oven is connected with the import of this meticulous fly-ash separator, the gas exit of described coal gas cooling device is connected with fuel inlet with the fuel inlet of activator process furnace and the gas entry of gas-fired furnace respectively, the material outlet of coal gas cooling device is directly exported tar products, directly output coal dust product of the dust-removing powder outlet of described meticulous fly-ash separator;
The coal gas of high temperature outlet of described gas-fired furnace (700) is connected with the thermal source entrance of smalls pyrolysis oven, and the exhanst gas outlet of gas-fired furnace is connected with the thermal source entrance of raw coal preheating hierarchy system.
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| CN106635105A (en) * | 2016-12-07 | 2017-05-10 | 神华集团有限责任公司 | Active coke preparation device and method |
| CN106753494A (en) * | 2016-12-07 | 2017-05-31 | 神华集团有限责任公司 | Activated coke preparation facilities and method |
| CN107557040A (en) * | 2017-10-10 | 2018-01-09 | 北京神雾电力科技有限公司 | A kind of system and method for reclaiming high temperature pyrolysis gas heat |
| CN110002443A (en) * | 2019-02-01 | 2019-07-12 | 浙江天禄环境科技有限公司 | The method for recycling preparing active carbon using waste heat flue gas drying powder coal and Sewage treatment |
| CN111453728A (en) * | 2020-03-17 | 2020-07-28 | 新疆鑫力环保科技有限公司 | Raw coal carbonization and activation co-production process and system thereof |
| CN111704136A (en) * | 2020-04-27 | 2020-09-25 | 马春元 | Desulfurization and denitrification coal-based active coke one-step preparation equipment and method |
| CN117046442A (en) * | 2023-08-14 | 2023-11-14 | 浙江大学 | Preparation system and preparation method for co-production of flue gas activated carbon by coal staged pyrolysis combustion |
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