CN103159203A - Ring-type baking furnace for carbon production - Google Patents
Ring-type baking furnace for carbon production Download PDFInfo
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- CN103159203A CN103159203A CN201110405356XA CN201110405356A CN103159203A CN 103159203 A CN103159203 A CN 103159203A CN 201110405356X A CN201110405356X A CN 201110405356XA CN 201110405356 A CN201110405356 A CN 201110405356A CN 103159203 A CN103159203 A CN 103159203A
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Abstract
The present invention discloses a ring-type baking furnace for carbon production. According to the ring-type baking furnace, a plurality of furnace chambers are subjected to head-tail connection combination to form a ring; a material box (4) and a fire channel (5) are separately arranged; the upper portion of the preheat furnace chamber material box (4) is provided with a furnace cover (1); a volatilization component pipeline (3) is arranged between the two rows of the furnace chambers; the upper portion of a heat furnace chamber is provided with volatilization component combustion frames (2); the furnace cover (1) and the volatilization component combustion frames (2) are connected with the volatilization component pipeline (3); the volatilization component combustion frame (2) is connected with the fire channel (5) of the heat furnace chamber; the furnace cover (1) is provided with asphalt volatilization component discharge ports; and furnace cover volatilization component discharge ports and inlets of the volatilization component combustion frames (2) are connected through the volatilization component pipeline (3). With the present invention, the condition that harmful asphalt volatilization components enter baking flue gas so as to cause pollution can be avoided, baking energy consumption can be reduced, benzopyrene can be effectively treated, a clean production purpose can be achieved, and the condition that the too high temperature at the preheat stage causes the baking product to generate cracks can further be avoided.
Description
Technical field
The present invention relates to a kind of ring-form calcining furnace of charcoal element production use.
Background technology
Carbon industry at home and abroad, carbon product generally adopts open-type ring-type roasting furnace and ring-type baking furnace with cover to carry out roasting, and the asphalt volatile constituents of two kinds of type of furnaces is all to enter in baking flue gas at pre-heating stage.Preheating furnace chamber fire path temperature is lower on the one hand, fugitive constituent can't fully burn, the strict control preheating oven of part goods (as negative electrode and electrode) roasting chambers temp, do not allow fugitive constituent to burn in a large number on the other hand, therefore causes a large amount of fugitive constituents along with flue gas is discharged stoving oven.
The main oxious component of asphalt volatile constituents is tar, benzopyrene, also is attended by charcoal element dust.The method smoke treatment of present domestic main employing cooling tower+electrical tar precipitator, equipment is huge, invest high, although can make tar and dust qualified discharge in flue gas, very little for the benzopyrene treatment effect, can't reach the discharging standards requirement, and contain a large amount of water and dust in the tar of collecting, be not easy to recycle, abandoned by many enterprises, cause secondary pollution.Benzopyrene is a kind of carcinogenic substance, studies show that and to rely on incinerating method to process, incineration temperature requires to reach more than 800 ℃, large due to the baking flue gas flow, temperature is low, flue gas to be burned and need to consume a large amount of fuel, domestic also do not have charcoal element enterprise to take measures the benzopyrene in the circular furnace flue gas is administered, and therefore, the benzopyrene discharge beyond standards in the ring-form calcining furnace flue gas is very general.In addition, the method of cooling tower+electrical tar precipitator can not thoroughly capture tar, As time goes on, flue, induced draft fan and chimney bottom still inevitably can deposit tar, cause line clogging, induced draft fan overbalance, even the accident of tar spontaneous combustion also happens occasionally, and has certain potential safety hazard.
To thoroughly solve ring-form calcining furnace roasting process medium pitch fugitive constituent and enter at pre-heating stage the series of problems that baking flue gas causes, just must change sinter process technology and stoving oven structure.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of ring-form calcining furnace of charcoal element production use is provided, enter at pre-heating stage the pollution that causes in baking flue gas to overcome the ring-form calcining furnace asphalt volatile constituents that prior art exists, avoid stopping composition to be inhaled in quirk, reduce roasting energy consumption and stopping composition loss, make simultaneously benzopyrene obtain effectively to administer, realize the purpose of cleaner production, can also avoid the pre-heating stage excess Temperature to cause goods to crack simultaneously.
The present invention is by the following technical solutions: it is joined end to end by several furnace chambers and combines annular, and every seat ring formula stoving oven includes flame system, and each flame system includes several furnace chambers; Each furnace chamber comprises hopper and quirk; Quirk is positioned at hopper both sides; Preheating furnace chamber hopper top arranges bell, and two centres, grate furnace chamber arrange the fugitive constituent pipeline, and heated oven chamber top arranges the fugitive constituent burning rack, and bell, fugitive constituent burning rack are connected with the fugitive constituent pipeline, and the fugitive constituent pipeline is connected with the quirk of heated oven chamber; Bell is provided with the asphalt volatile constituents relief outlet, and the fugitive constituent pipeline is connected bell fugitive constituent relief outlet with fugitive constituent burning rack entrance.
Body of wall between quirk and hopper is seamless.
The fugitive constituent pipeline shares for all furnace chambers.
The fugitive constituent pipeline arranges an interface in corresponding each furnace chamber fugitive constituent relief outlet position, and each interface all arranges trip valve.
Bell is made a large lid, and Da Gai mates with a complete furnace chamber; Perhaps make several tegillums, each tegillum and a hopper coupling adopt shaped steel to connect between each tegillum as a whole.
Each flame system all arranges the fugitive constituent burning rack.
Pack into the raw product pitch as binder of stoving oven, the general fugitive constituent that is equivalent to raw product weight 10% left and right of discharging in roasting process, the fugitive constituent outflow temperature is generally 200 ~ 550 ℃, concentrating on pre-heating stage discharges, if it is too fast that heat up this moment, fugitive constituent is sharply discharged, and goods are cracked.For avoiding asphalt volatile constituents in pre-heating stage directly enters baking flue gas, after being collected by bell, fugitive constituent pipeline, the fugitive constituent of discharging in the preheating furnace chamber pumps in stoving oven heated oven chamber, utilize the hot environment of heated oven chamber to make tar and charcoal element dust obtain fully burning, so not only having avoided asphalt volatile constituents to enter at pre-heating stage pollutes in baking flue gas but also can reduce the roasting energy consumption, benzopyrene also can obtain effective improvement simultaneously, realize the purpose of cleaner production, can also avoid the pre-heating stage excess Temperature to cause goods to crack.
The working condition of stoving oven is: stoving oven is connected by several furnace chambers ending and combines annular, and roasting furnace chamber position maintains static, and flame system is periodically mobile, moving period 26 ~ 48 hours.Along with the movement of flame system, the roasting furnace chamber and in goods complete gradually from low temperature to high temperature then cooling whole roasting process.In roasting process, air is sucked from the quirk of cooling furnace chamber by induced draft fan, and in the time of through cooling furnace chamber, that goods are cooling, self temperature gets a promotion; Enter afterwards fuel (comprising the fugitive constituent that the fugitive constituent burning rack sprays into) mixed firing that sprays into burning rack in the quirk of heated oven chamber, the temperature of heated oven chamber realizes automatically regulating by adjusting the extra fuel straying quatity, the straying quatity of asphalt volatile constituents does not add control, that is to say that how many fugitive constituents the preheating furnace chamber discharge and just what spray in heated oven chamber; The flue gas that burning produces enters in the quirk of preheating furnace chamber, and through the preheating furnace chamber with the raw product preheating time, self temperature descends, and discharges stoving oven finally by crossing smoke discharge frame, and the preheating furnace chamber is provided with the thermometric rack of measuring pressure, and its detect parameters is used for controlling the baking flue gas flow.
Asphalt volatile constituents collection recycling mode is as follows:
The raw product and the stopping composition that contain binder pitch are placed in hopper, and therefore, the body of wall between hopper and quirk does not stay the gap, can avoid asphalt volatile constituents to be inhaled in quirk.Asphalt volatile constituents concentrates on the preheating furnace chamber and discharges, and the fugitive constituent of discharge is sent in heated oven chamber by the collection recycling system and burnt.
Asphalt volatile constituents is collected recycling system and is comprised: bell, fugitive constituent pipeline and fugitive constituent burning rack.
Bell is used for airtight preheating furnace chamber hopper, avoids asphalt volatile constituents to be dispersed in the workshop, and the fugitive constituent relief outlet is set on bell, can be connected to the fugitive constituent pipeline.Bell quantity is determined according to preheating oven number of chambers amount, be generally 3 ~ 6, each bell can be made a large lid according to the stoving oven structure and be used for hiding a complete furnace chamber, also can make several tegillums, each tegillum only hides a hopper, adopt shaped steel to connect between each tegillum as a whole, connecting shaped steel should not interfere with smoke discharge frame and thermometric rack of measuring pressure.Former structure is simple, is applicable to the ring-form calcining furnace of lower air draft, and the latter is applicable to the ring-form calcining furnace of air draft, does not affect the normal use of smoke discharge frame and thermometric rack of measuring pressure.
The fugitive constituent pipeline is carried fugitive constituent except being responsible for, and also will keep certain volume, guarantees that in fugitive constituent burning rack moving process, asphalt volatile constituents can temporarily be stored in pipeline; The fugitive constituent pipeline arranges an interface in corresponding each furnace chamber fugitive constituent relief outlet position, each interface all arranges trip valve, when this interface with must be in closing condition before bell fugitive constituent relief outlet or fugitive constituent burning rack flexible pipe properly are not connected, avoid the asphalt volatile constituents in pipeline to escape.For the stoving oven that a plurality of flame systems are arranged, the fugitive constituent pipeline can share.
Each flame system all arranges the fugitive constituent burning rack, the supporting asphalt volatile constituents suction unit of this burning rack and distribution system, be responsible for the fugitive constituent that the preheating furnace chamber is discharged is extracted in heated oven chamber's (by fugitive constituent pipeline) and every quirk of uniformly distributing to the baking heat furnace chamber, make simultaneously the asphalt volatile constituents pipeline keep certain negative pressure, avoid asphalt volatile constituents to escape.
Beneficial effect of the present invention is as follows:
Adopt the present invention, after being collected, the fugitive constituent of discharging in the preheating furnace chamber pumps in stoving oven heated oven chamber, utilize the hot environment of heated oven chamber to make tar and charcoal element dust obtain to fill a part burning, avoid asphalt volatile constituents in pre-heating stage directly enters baking flue gas, so not only avoided the asphalt volatile constituents oxious component to enter that baking flue gas pollutes but also can reduce the roasting energy consumption, benzopyrene also can obtain effective improvement simultaneously, realize the purpose of cleaner production, can also avoid the pre-heating stage excess Temperature to cause baked article to crack.
Produce one ton of baked anode, smoke discharge amount is 6500 ~ 7500Nm
3, the investment that is used for improvement tar is 177 yuan.According to statistics, China's anode aggregated capacity has reached 1,200 ten thousand ton/years at present, several annual growths of future will remain on more than 8%, 960,000 tons of the minimum increases of annual anode production capacity, adopt present technique can save 17,000 ten thousand yuan of tar improvement special investments every year, adopt the existing Anode Baking System of present technique transformation, 8740 tons, annual recoverable tar is saved 10153 tons of standard coals.
Produce one ton of roasting negative electrode, smoke discharge amount is 13000 ~ 14000Nm
3, the investment that is used for improvement tar is 384 yuan.According to statistics, China's negative electrode aggregated capacity has reached 380,000 ton/years at present, several annual growths of future will remain on more than 8%, 30,000 tons of the minimum increases of annual negative electrode production capacity, adopt present technique can save 1,200 ten thousand yuan of tar improvement special investments national every year, adopt the existing negative electrode roasting system of present technique transformation, 9680 tons, annual recoverable tar is saved 11243 tons of standard coals.
Description of drawings
Fig. 1 is structural representation of the present invention, stretch-out view;
Fig. 2 is partial view of the present invention, express the fugitive constituent of a flame system in figure and collect the recycle device structure, comprise bell, fugitive constituent burning rack and fugitive constituent pipeline, wherein the fugitive constituent pipeline can share for a plurality of flame systems, bell quantity is determined according to preheating oven number of chambers amount, is generally 3 ~ 6; Between hopper and quirk, body of wall does not stay the gap, and other structures of stoving oven are identical with existing ring-form calcining furnace.
Embodiment
Embodiments of the invention: joined end to end by several furnace chambers and combine annular, every seat ring formula stoving oven comprises 1 ~ 3 flame system, and each flame system comprises 16 ~ 18 furnace chambers, wherein the preheating furnace chamber is 3 ~ 6,2 ~ 3 of heated oven chamber, 6 of cooling furnace chambers take on 3 ~ 4 of stove and maintenance furnace chambers; Each furnace chamber comprises 4,5 ~ 9 quirks 5 of 4 ~ 8 hoppers; Hopper 4 arranges with quirk 5 isolation, and between body of wall do not stay the gap; Preheating furnace chamber hopper top arranges bell 1, fugitive constituent pipeline 3, and heated oven chamber top arranges fugitive constituent burning rack 2, and bell 1, fugitive constituent burning rack 2 are connected with fugitive constituent pipeline 3, and fugitive constituent burning rack 2 is connected with the quirk 5 of heated oven chamber; Bell 1 is provided with the asphalt volatile constituents relief outlet, and fugitive constituent pipeline 3 is connected bell fugitive constituent relief outlet with fugitive constituent burning rack 2 entrances.
Fugitive constituent pipeline 3 is that a plurality of flame systems share.
Fugitive constituent pipeline 3 arranges an interface in corresponding each furnace chamber fugitive constituent relief outlet position, and each interface all arranges trip valve.
Bell 1 is made several tegillums, and each tegillum and hopper 4 couplings adopt shaped steel to connect between each tegillum as a whole.
Each flame system all arranges fugitive constituent burning rack 2.
Claims (6)
1. the ring-form calcining furnace of a charcoal element production use, joined end to end by several furnace chambers and combine annular, and every seat ring formula stoving oven includes flame system, and each flame system includes several furnace chambers; Each furnace chamber comprises hopper (4) and quirk (5); Quirk (5) is positioned at hopper (4) both sides; It is characterized in that: preheating furnace chamber hopper (4) top arranges bell (1), the two middle fugitive constituent pipelines (3) that arrange in grate furnace chamber, heated oven chamber top arranges fugitive constituent burning rack (2), bell (1), fugitive constituent burning rack (2) are connected with fugitive constituent pipeline (3), and fugitive constituent pipeline (3) is connected with the quirk (5) of heated oven chamber; Bell (1) is provided with the asphalt volatile constituents relief outlet, and fugitive constituent pipeline (3) is connected bell fugitive constituent relief outlet with fugitive constituent burning rack (2) entrance.
2. the ring-form calcining furnace of charcoal according to claim 1 element production use, it is characterized in that: the body of wall between quirk (5) and hopper (4) is seamless.
3. the ring-form calcining furnace of charcoal according to claim 1 element production use, it is characterized in that: fugitive constituent pipeline (3) is shared for all furnace chambers.
4. the ring-form calcining furnace of charcoal according to claim 1 element production use is characterized in that: fugitive constituent pipeline (3) arranges an interface in corresponding each furnace chamber fugitive constituent relief outlet position, and each interface all arranges trip valve.
5. the ring-form calcining furnace of charcoal according to claim 1 element production use, it is characterized in that: bell (1) is made a large lid, and Da Gai mates with a complete furnace chamber; Perhaps make tegillum, each tegillum and a hopper (4) coupling adopt shaped steel to connect between each tegillum as a whole.
6. the ring-form calcining furnace of charcoal according to claim 1 element production use, it is characterized in that: each flame system all arranges fugitive constituent burning rack (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110405356.XA CN103159203B (en) | 2011-12-08 | 2011-12-08 | The ring-form calcining furnace of charcoal element production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110405356.XA CN103159203B (en) | 2011-12-08 | 2011-12-08 | The ring-form calcining furnace of charcoal element production |
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| CN103159203A true CN103159203A (en) | 2013-06-19 |
| CN103159203B CN103159203B (en) | 2016-02-10 |
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| CN201110405356.XA Active CN103159203B (en) | 2011-12-08 | 2011-12-08 | The ring-form calcining furnace of charcoal element production |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930850A (en) * | 2014-03-18 | 2015-09-23 | 沈阳铝镁设计研究院有限公司 | Volatile matter channel |
| CN105502337A (en) * | 2015-12-28 | 2016-04-20 | 沈阳津沃技术发展有限责任公司 | Vehicle type roasting furnace and heat treatment production line comprising same |
| CN107228570A (en) * | 2016-03-23 | 2017-10-03 | 沈阳铝镁设计研究院有限公司 | A kind of method of anode-baking furnace UTILIZATION OF VESIDUAL HEAT IN |
| CN108050856A (en) * | 2018-01-12 | 2018-05-18 | 韩浩然 | A kind of combustion control energy saver |
| CN108981396A (en) * | 2018-09-12 | 2018-12-11 | 北京西玛通科技有限公司 | A kind of unlimited ring type stove furnace stove of calcining carbon |
| CN117800743A (en) * | 2024-02-28 | 2024-04-02 | 淄博大陆石墨科技有限公司 | Roasting method of carbon impregnated product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295978Y (en) * | 1996-09-18 | 1998-10-28 | 沈阳铝镁设计研究院 | Secondary roasting apparatus for carbon product |
| CN202499712U (en) * | 2011-12-08 | 2012-10-24 | 贵阳铝镁设计研究院有限公司 | Annular roaster for carbon production |
-
2011
- 2011-12-08 CN CN201110405356.XA patent/CN103159203B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295978Y (en) * | 1996-09-18 | 1998-10-28 | 沈阳铝镁设计研究院 | Secondary roasting apparatus for carbon product |
| CN202499712U (en) * | 2011-12-08 | 2012-10-24 | 贵阳铝镁设计研究院有限公司 | Annular roaster for carbon production |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930850A (en) * | 2014-03-18 | 2015-09-23 | 沈阳铝镁设计研究院有限公司 | Volatile matter channel |
| CN105502337A (en) * | 2015-12-28 | 2016-04-20 | 沈阳津沃技术发展有限责任公司 | Vehicle type roasting furnace and heat treatment production line comprising same |
| CN105502337B (en) * | 2015-12-28 | 2018-03-06 | 沈阳津沃技术发展有限责任公司 | Vehicle type roaster and the heat-treatment production line for including vehicle type roaster |
| CN107228570A (en) * | 2016-03-23 | 2017-10-03 | 沈阳铝镁设计研究院有限公司 | A kind of method of anode-baking furnace UTILIZATION OF VESIDUAL HEAT IN |
| CN108050856A (en) * | 2018-01-12 | 2018-05-18 | 韩浩然 | A kind of combustion control energy saver |
| CN108981396A (en) * | 2018-09-12 | 2018-12-11 | 北京西玛通科技有限公司 | A kind of unlimited ring type stove furnace stove of calcining carbon |
| CN117800743A (en) * | 2024-02-28 | 2024-04-02 | 淄博大陆石墨科技有限公司 | Roasting method of carbon impregnated product |
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| Publication number | Publication date |
|---|---|
| CN103159203B (en) | 2016-02-10 |
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