CN202246074U - Carbonization furnace for activated coke production - Google Patents
Carbonization furnace for activated coke production Download PDFInfo
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- CN202246074U CN202246074U CN2011203499973U CN201120349997U CN202246074U CN 202246074 U CN202246074 U CN 202246074U CN 2011203499973 U CN2011203499973 U CN 2011203499973U CN 201120349997 U CN201120349997 U CN 201120349997U CN 202246074 U CN202246074 U CN 202246074U
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Abstract
The utility model discloses a carbonization furnace for activated coke production. The carbonization furnace comprises a vertical square furnace body. The center of the furnace body is provided with a carbonization chamber, the carbonization chamber comprises an oxidation section, a carbonization section, an activation section and a cooling section sequentially from top to bottom, the left side of the oxidation section is provided with a gas distribution chamber, the right side of the oxidation section is provided with a gas collection and distribution chamber, partitions respectively connecting the gas distribution chamber and the gas collection and distribution chamber with the carbonization chamber adopt porous walls, the two sides of the carbonization section are provided with combustion chambers, the upper parts of partitions between the carbonization chamber and the combustion chambers are provided with oblique holes, the activation section is used as a lower high-temperature area of the carbonization section, the two sides of the bottom of the cooling section are provided with horizontal steam channels, and partitions between the steam channels and the carbonization chamber is provided with steam distribution holes. A pretreatment furnace, a carbonization furnace and an activation furnace are combined into one furnace for carrying out segment treatment on shaped coal, and thus pre-oxidation, carbonization, activation and cooling can be realized. Moreover, the investment is low, the energy consumption is low, the degree of activated coke formation is high, and the activation effect is good.
Description
Technical field
The utility model relates to a kind of activated coke and produces charring furnace, belongs to clean coal production unit field.
Background technology
Japan has begun activated carbon flue gas desulfurization research in middle 1960s.20th century the mid-1970s, German LURGI with Japan Hitachi, Ltd, successively develop and can remove SO
2Gac, and be used for flue gas desulfurization.MIT has developed fluidized-bed gac flue gas combined desulfurization denitrification process, SO
2Decreasing ratio reach more than 90% NO
XDecreasing ratio reaches more than 80%.Because it is complicated to be used for the technical process high and desulfurization of the gac cost of desulfurization, and the popularization of this technology is restricted.But compare with other flue gas desulfurization techniques, active carbon adsorption flue gas desulfurization is unique a kind of method that can remove plurality of impurities in the flue gas, comprising SO
2, oxynitride, smoke particle, mercury, dioxin, furans, heavy metal, volatile organic matter and other trace elements.Along with people's is to the attention of environment protection, and active carbon desulfurization denitrogenation research has received concern again.
The production of gac, because its raw material sources, particularly processing condition are had relatively high expectations, and therefore, the price of gac is more expensive, and the physical strength of this outdoor dry-type absorption method gac is lower, in regenerative process, is prone to pulverize.In order to overcome the shortcoming that the gac physical strength is low, be prone to pulverizing; Germany BF company early start the development research of activated coke; And developed flue gas desulfurization in 1980 with long-flame coal or bottle coal and used activated coke, Japan has delivered the out of stock process patent with activated coke of flue gas simultaneous desulfurization in nineteen ninety-five.Germany (BF) and SUMITOMO CHEMICAL heavy industry are developed two kinds of stack gas dry desulfurizing process that use activated coke respectively now; Be to adopt moving-bed absorption-thermal regeneration method, this technology serviceability and suitability are high, can while denitrogenation, dedusting, remove pollutents such as halogenide, heavy metal, floating dust; No water consumption; Energy consumption is low, and sub product has developed into maturation process for being easy to storage, transportation, market sulphur preferably.The Lurgi method active coke desulphurizing of Germany's exploitation belongs to the washing reclaiming process, needs to use big water gaging, and the sulfuric acid concentration that obtains is low, and desulfuration efficiency is also low, only is applicable to that treatment capacity is little, sulfur dioxide concentration hangs down the flue gas desulfurization under the situation.The Westvac method technology of U.S.'s exploitation is more special, is under 65～149 ℃ situation, and gac removes the SO in the flue gas in multiple stage fluidized-bed
2, then in the time of 149 ℃ with H2S directly with the activated carbon micropore in sulfuric acid reaction regenerate.This method only is applicable on a small scale, low concentration SO
2Flue gas is handled.
At present, have only Germany (BF) company and Mitsui mining industry (MMC) production activated coke abroad, cost an arm and a leg, per ton is 800～1000 dollars.Therefore, though the active coke desulphurizing technology has become the industrial technology of comparative maturity,, limited active coke desulphurizing technology applying in China because activated coke is relatively more expensive.Domestic in recent years many experts and scholars are devoted to research in this respect; And obtained certain achievement; Like associatings such as the Zhang Shouyu of Thermal Power Engineering institute of Tsing-Hua University and Shanxi Coal-Chemical Inst., Chinese Academy of Sciences, Wang Yang, carried out the development of activated coke with Datong District's coal and Bin County coal respectively.
Activated coke can also be used for the processing of waste water except being used for the flue gas desulfuration and denitrification.It is the domestic method of waste water advanced processing that active carbon adsorption is handled waste water; Become a kind of indispensable Technology; Activated coke replaces activated carbon treatment waste water, and is not only feasible technically, and compares with active carbon adsorption economically and have very big advantage.
The preparation of activated coke is divided into following step: at first with pretreated brown coal or long-flame coal destructive distillation, process semicoke, utilize semicoke, coking coal and cakingagent (coal tar) mixing moulding then, and process activated coke through charing, activation.The desulfurization removing nitric performance of activated coke is by its pore texture and surface chemical property decision, and the surface chemical property of activated coke is then by feed coal kind and preparation process condition decision.Two preparation process of destructive distillation and activation are pore texture and most important processes of surface chemical property of decision activated coke, so destructive distillation and activation be that activated coke prepares two important link in the process, are determining the final quality of product.
Destructive distillation is carried out in inert atmosphere; Raw material is emitted volatile matter and is become the destructive distillation product through pyrolysis; The specific surface area of this destructive distillation product has only about tens square metres of every grams; And the activated coke with flourishing hole, huge specific surface area, high absorption capacity be through with this destructive distillation product with water vapour, carbonic acid gas etc. under 700～1100 ℃ of conditions of reacting with carbon down, further activation is processed.
The distillation apparatus and the activation equipment that adopt are at present continued to use Activated Carbon Production equipment mostly; Be that former coal carbonization adopts upright furnace, rotary kiln; Stepple furnace (or claiming the saddle stove), rake formula stove, fluid bed furnace etc. are adopted in activation mostly, are that 200710118873.x and application number are 200910076042.2 Chinese patent like application number.Charing and activation proceed step by step cause complex process, and energy consumption is higher, invest bigger.
The utility model content
Based on above-mentioned technical problem, the purpose of the utility model is to provide a kind of activated coke to produce charring furnace.
Its technical solution is:
A kind of activated coke is produced charring furnace, comprises body of heater, and body of heater is square for uprightly; The body of heater center is a coking chamber; Coking chamber comprises oxidation panel, charing section, activation section and cooling section from top to bottom successively, is provided with the gas distribution chamber in the oxidation panel left side, is provided with the collecting and distributing chamber of gas on the oxidation panel right side; The partition wall that gas distribution chamber, the collecting and distributing chamber of gas link to each other with coking chamber respectively is set to pigeon-holed wall; Be provided with the combustion chamber in charing section both sides, the partition wall top between coking chamber and combustion chamber offers inclined hole, and activation section is the high-temperature zone, bottom of charing section; Two bottom sides at cooling section is provided with horizontal steam way, on the partition wall between steam way and the coking chamber, offers the steam distribution hole.
One section atresia wall is set between oxidation panel and charing section.
On the inwall of the corresponding charing section of coking chamber, be arranged at intervals with the water conservancy diversion flange.
Horizontal fume centralized quirk is set in the bottom, combustion chamber, and horizontal fume centralized quirk links to each other with the outer main flue of stove, and air indirect preheating pipe and wind distributing hole are set in main flue.
Top at coking chamber is provided with feed valve; Bottom at coking chamber is provided with coke guide; In coke guide, be provided with two-stage cast iron and lead burnt valve, the water-lute valve is set or coke guide is directly stretched into the pond in the coke guide outlet, activated coke imports in the pond and is derived by scraper conveyor after the cooling.
The useful technique effect of the utility model is:
The utility model is merged into a stove with pre-treatment stove, charring furnace and activation furnace, to the shaped coal staging treating, realizes preoxidation, charing, activation and cooling; And steam activation and evaporation efficiency height, the activated coke forming degree is good, does not have distortion and does not have bonding; Charing is even; Intensity is high, and quality is good, can be used as the production stove of present power plant dry desulfurization or WWT activated coke.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is the structural representation of the utility model.
Among the figure, the former hopper of 1-; The 2-feed valve; The 3-coking chamber; The 301-oxidation panel; 302-charing section; The 303-activation section; The 304-cooling section; The collecting and distributing chamber of 4-; The outlet of 5-oxic gas; The 6-combustion chamber; The 7-air flue; The 8-fire-regulating hole; The horizontal road of 9-flue gas; The horizontal steam way of 10-; 11-leads burnt wheel; The 12-cooling water outlet; The 13-cooling jacket; The 14-coke guide; The 15-entrance of cooling water; The import of 16-oxic gas; The 17-inclined hole; 18-steam distribution hole; 19-steam export mouth; 20-first valve that discharges of the coke; 21-second valve that discharges of the coke.
Embodiment
In conjunction with accompanying drawing, a kind of activated coke is produced charring furnace, comprises body of heater, and body of heater is square for uprightly, and the body of heater center is a coking chamber 3, and the top of coking chamber 3 is provided with former hopper 1, between former hopper 1 and coking chamber 3, is provided with feed valve 2.Coking chamber 3 comprises oxidation panel 301, charing section 302, activation section 303 and cooling section 304 from top to bottom successively.
Be provided with oxidizing gas distributing chamber in the oxidation panel left side; Be provided with the collecting and distributing chamber 4 of gas on the oxidation panel right side; The two partition wall that links to each other with coking chamber 3 is a pigeon-holed wall, and oxygen gas is introduced distributing chamber outward by stove, crosses coking chamber through the pigeon-holed wall horizontal flow; Contact the completion oxidation with the moulded coal cross-flow, pass the collecting and distributing chamber 4 of opposite side pigeon-holed wall entering gas then and enter chimney.The oxidizing temperature of this process is 200 ℃～300 ℃, mainly is that the type ball is carried out pre-treatment, makes the sclerosis of type ball surface oxidation, avoids modification, bonding when trip temperature raises down in stove, even holds in both hands material.
Be provided with combustion chamber 6 in charing section both sides; Partition wall top between coking chamber and combustion chamber offers inclined hole 17; The coal gas that CARBONIZATION OF BRIQUETTES produces or give gas outward and through air 6 mixed firings of stack gas preheating in the combustion chamber; The combustion heat is gone up inclined hole 17 through partition wall and its and is passed to coking chamber, heats to make CARBONIZATION OF BRIQUETTES.Inclined hole 17 promptly is beneficial to gas and derives coking chamber from the horizontal by certain angle, does not make activated coke scurry into the combustion chamber again.On the furnace wall inwall of the corresponding charing section of coking chamber, be arranged at intervals with the water conservancy diversion flange, make moulded coal in descending process, obtain mixing.Further, scurry mutually, one section atresia wall is set between two sections reaches gas through the material envelope and do not scurry mutually for avoiding between oxidation panel and the charing section gas.6 bottom is provided with horizontal fume centralized quirk in the combustion chamber, and horizontal fume centralized quirk links to each other with the outer main flue of stove, and air indirect preheating pipe and wind distributing hole are set in main flue, sends into the preheating oxidation panel through the flue gas that air distribution temperature adjustment oxygen level is certain by induced draft fan.Air through preheating is delivered to coking chamber two side combusion chambers or gasburner by gas blower.The nozzle that outside establish at flue top, combustion chamber, gives gas is added heat by the outside in order to self produced gas when not enough.
Activation section is actual to be the high-temperature zone, bottom of charing section, can not be well-separated with the charing section, and the steam that cooling section rises reacts at the carbonized material of this section with red heat, the realization activation, temperature is 800 ℃～950 ℃.
Two bottom sides at cooling section is provided with horizontal steam way 10, on the partition wall between steam way 10 and the coking chamber, offers steam distribution hole 18, is used for the outer steam activation activated coke that supplies, and realizes the cooling of activated coke simultaneously.But steam way is the outer cooling gas pipe of double as also, as outside when giving gas, cooled coal gas infeeds coking chamber and red burnt heat exchange by cooling section bottom level steam way, cools off red Jiao simultaneously, the coal gas of heating rises to the charing section, imports the combustion chamber and air mixed is burnt by inclined hole.
Be provided with coke guide 14 in the bottom of coking chamber, coke guide 14 is connected with cooling jacket 13, in coke guide 14, is provided with first valve 20 and second valve 21 that discharges of the coke that discharges of the coke, and is used to control the activated coke discharging speed.Outlet at coke guide 14 is provided with the water-lute valve, and it is burnt or coke guide directly stretched into the pond to avoid air to scurry into coking chamberization, and activated coke imports in the pond cooling back and derived by scraper conveyor.The steam that produces in the process of cooling is introduced the horizontal steam way of cooling section through conduit and then is imported coking chamber activation and red Jiao of cooling.
Above-mentioned coking chamber is of a size of high 14 meters, and is wide 0.4 meter, and long 4 meters, wherein oxidation panel is high 2 meters, charing section high 8 meters (comprising activation section), and the material of oxidation panel and charing section seals high 1 meter, and cooling section is high 3 meters, and coke guide is high 1.5 meters.Coking chamber and combustion chamber all adopt fireclay brick to build by laying bricks or stones, and wherein coking chamber and combustion chamber partition wall refractory brick adopt the special shaped brick of with groove to build by laying bricks or stones, guarantee resistance to air loss and intensity.The coking chamber interior wall keeps at a certain distance away and adopts flanged refractory brick to build by laying bricks or stones, guarantees that the activated coke charing is even.The charring furnace exterior wall adopts common brick to build and be provided with the furnace retaining ironware by laying bricks or stones.Coke guide adopts cast iron materials to process, and is provided with cooling water jecket and the two poles of the earth seal valve, and steam that coke guide produces is directed at the horizontal steam way of cooling section by conduit, gets into coking chamber as activation gas.Discharging adopts truck to be interrupted discharging.The activated coke forming degree that adopts the briquetting moulded coal to process through this stove charing, activation is good, and adhesion is indeformable, and intensity is good, specific surface area 500m
2/ g satisfies the flue gas desulfurization requirement fully.
Need to prove that under the instruction of this specification sheets, any equivalents that those skilled in the art have done, or obvious variant all should be within the protection domains of the utility model.
Claims (5)
1. an activated coke is produced charring furnace, comprises body of heater, and it is characterized in that: body of heater is square for uprightly; The body of heater center is a coking chamber; Coking chamber comprises oxidation panel, charing section, activation section and cooling section from top to bottom successively, is provided with the gas distribution chamber in the oxidation panel left side, is provided with the collecting and distributing chamber of gas on the oxidation panel right side; The partition wall that gas distribution chamber, the collecting and distributing chamber of gas link to each other with coking chamber respectively is set to pigeon-holed wall; Be provided with the combustion chamber in charing section both sides, the partition wall top between coking chamber and combustion chamber offers inclined hole, and activation section is the high-temperature zone, bottom of charing section; Two bottom sides at cooling section is provided with horizontal steam way, on the partition wall between steam way and the coking chamber, offers the steam distribution hole.
2. a kind of activated coke according to claim 1 is produced charring furnace, it is characterized in that: one section atresia wall is set between oxidation panel and charing section.
3. a kind of activated coke according to claim 1 is produced charring furnace, it is characterized in that: on the inwall of the corresponding charing section of coking chamber, be arranged at intervals with the water conservancy diversion flange.
4. a kind of activated coke according to claim 1 is produced charring furnace, it is characterized in that: horizontal fume centralized quirk is set in the bottom, combustion chamber, and horizontal fume centralized quirk links to each other with the outer main flue of stove, and air indirect preheating pipe and wind distributing hole are set in main flue.
5. a kind of activated coke according to claim 1 is produced charring furnace; It is characterized in that: the top at coking chamber is provided with feed valve; Bottom at coking chamber is provided with coke guide; In coke guide, be provided with two-stage cast iron and lead burnt valve, the water-lute valve is set or coke guide is directly stretched into the pond in the coke guide outlet, activated coke imports in the pond and is derived by scraper conveyor after the cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203499973U CN202246074U (en) | 2011-09-19 | 2011-09-19 | Carbonization furnace for activated coke production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203499973U CN202246074U (en) | 2011-09-19 | 2011-09-19 | Carbonization furnace for activated coke production |
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| CN202246074U true CN202246074U (en) | 2012-05-30 |
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| CN2011203499973U Expired - Fee Related CN202246074U (en) | 2011-09-19 | 2011-09-19 | Carbonization furnace for activated coke production |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796539A (en) * | 2012-08-06 | 2012-11-28 | 山西鑫立能源科技有限公司 | Continuous coaling method of coal as fired |
| CN102963890A (en) * | 2012-09-28 | 2013-03-13 | 北京国电富通科技发展有限责任公司 | Carbonization activation integrated furnace |
| CN104100980A (en) * | 2014-07-01 | 2014-10-15 | 同济大学 | Small garbage coking combustion furnace |
| CN105905894A (en) * | 2016-01-28 | 2016-08-31 | 赵英杰 | Carbonization and activation device for active coke production |
| CN107892931A (en) * | 2017-11-10 | 2018-04-10 | 东南大学 | The apparatus and method that portable pyrolysis prepares charcoal |
| CN111346605A (en) * | 2020-04-08 | 2020-06-30 | 西安热工研究院有限公司 | Pollutant comprehensive treatment system and method suitable for large coal-fired power plant |
| CN111704136A (en) * | 2020-04-27 | 2020-09-25 | 马春元 | Desulfurization and denitrification coal-based active coke one-step preparation equipment and method |
| CN113198832A (en) * | 2020-01-31 | 2021-08-03 | 深圳市起源环保科技有限公司 | Soil improvement method using biomass charcoal |
-
2011
- 2011-09-19 CN CN2011203499973U patent/CN202246074U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796539A (en) * | 2012-08-06 | 2012-11-28 | 山西鑫立能源科技有限公司 | Continuous coaling method of coal as fired |
| CN102963890A (en) * | 2012-09-28 | 2013-03-13 | 北京国电富通科技发展有限责任公司 | Carbonization activation integrated furnace |
| CN104100980A (en) * | 2014-07-01 | 2014-10-15 | 同济大学 | Small garbage coking combustion furnace |
| CN105905894A (en) * | 2016-01-28 | 2016-08-31 | 赵英杰 | Carbonization and activation device for active coke production |
| CN107892931A (en) * | 2017-11-10 | 2018-04-10 | 东南大学 | The apparatus and method that portable pyrolysis prepares charcoal |
| CN113198832A (en) * | 2020-01-31 | 2021-08-03 | 深圳市起源环保科技有限公司 | Soil improvement method using biomass charcoal |
| CN111346605A (en) * | 2020-04-08 | 2020-06-30 | 西安热工研究院有限公司 | Pollutant comprehensive treatment system and method suitable for large coal-fired power plant |
| CN111704136A (en) * | 2020-04-27 | 2020-09-25 | 马春元 | Desulfurization and denitrification coal-based active coke one-step preparation equipment and method |
| CN111704136B (en) * | 2020-04-27 | 2022-09-23 | 马春元 | Desulfurization and denitrification coal-based active coke one-step preparation equipment and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120919 |