CN202666620U - Sealed electric furnace dry method dust removal system - Google Patents
Sealed electric furnace dry method dust removal system Download PDFInfo
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- CN202666620U CN202666620U CN201220146799.1U CN201220146799U CN202666620U CN 202666620 U CN202666620 U CN 202666620U CN 201220146799 U CN201220146799 U CN 201220146799U CN 202666620 U CN202666620 U CN 202666620U
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Abstract
Disclosed is a sealed electric furnace dry method dust removal system. A cyclone settling chamber, a two-stage cooler and a bag-type dust collector of the existing dust removal device of the sealed electric furnace dry method dust removal system are communicated with each other. A coarse gas fan is arranged between the cooler and the bag-type dust collector and a clean gas fan is arranged on an outlet smoke duct of the bag-type dust collector. The lower ends of the cyclone settling chamber, the two-stage cooler and the bag-type dust collector are communicated with a dust collecting storehouse through a sealed custody transfer board scraping machine. The sealed electric furnace dry method dust removal system further comprises a high temperature bypass device which is identical to a high temperature bypass device of the existing dedusting device, and the high temperature by pass device is in parallel connection with a bypass dedusting device. A switching valve is arranged between a furnace air transmission duct and each inlet of the inlets of the existing dedusting device, the bypass dedusting device and the high temperature bypass device. The switching valves are controlled by a programmable logic controller (PLC) controlling system. The sealed electric furnace dry method dust removal system has the advantages that when furnace collapsing materials produce instantaneously smoke, by switching the controlling system, smoke travels through the bypass dust removal device to remove the dust, and therefore the bag can be protected. When the dust removal system needs an examination, by switching the switching valve to the high temperature bypass to use, the furnace of the dust removal system does not need to be stopped.
Description
Technical field
The utility model relates to a kind of flue gas cleaning device, specifically a kind of dry-dedusting system of closed calcium carbide furnace.
Background technology
China's calcium carbide industry has 450 enterprises approximately, more than 600 furnace of calcium carbide arranged, annual production occupies first place in the world, there is inadequate natural endowment in domestic calcium carbide industry in scale, the type of furnace, layout, energy-saving and environmental protection, material quality is poor, managerial skills are lower, energy consumption is high simultaneously, pollution is heavy, and what give prominence to aspect the calcium carbide production technology be exactly: the off-gas recovery utilization ratio is not good on the one hand, and the purification techniques of flue gas coming from carbide furnace is very backward on the other hand.The about 80-90%'s of domestic calcium carbide industry is to be the internal combustion type electric furnace; the wasting of resources is larger; progress and national attention to the energy along with science and technology; it is imperative that the internal combustion type stove changes the totally-enclosed furnace of calcium carbide into; the Eleventh Five-Year Plan period; the research and development that China's calcium carbide industry will strengthen environmental protection technology; strengthen the control of comprehensive energy; strengthen the research and development of energy utilization technology, the degree of minimizing environmental pollution; active adoption totally-enclosed furnace of calcium carbide is so adopt in a large number the internal combustion type furnace of calcium carbide to transform the domestic comparative maturity of technology of totally-enclosed furnace of calcium carbide as.The major technique of totally-enclosed furnace of calcium carbide and equipment are from external introduction, and generally larger, production efficiency is higher, but its gas cleaning and heat energy utilization are not yet obtained ripe and unified technology so far.Even the flue gas dry cleaning technology through investigation totally-enclosed stove also is a difficult problem in developed country.Its difficulty be its fume high-temperature, dust carefully sticking light, carbon monoxide content is high, tar content is high and separate out easily, the variation of cigarette temperature waits greatly factor, and have certain danger.
As shown in Figure 1, it is a kind of closed electric furnace dry-method dust-removal device that my company uses at present, this closed electric furnace dry-method dust-removal device comprises cyclone settling chamber 1 ', one-level cooler 2 ', secondary coolers 3 ', thick gas blower fan 4 ', plural tablecloth bag dust collector 5 ', pneumostatic blower fan 6 ', closed conveying scrapper conveyor 7 ', and ash-storing bin 8 '.
Described cyclone settling chamber 1 ', one-level cooler 2 ', secondary coolers 3 ' and plural tablecloth bag dust collector 5 ' are communicated with successively.Be respectively equipped with one-level cooling blower 22 ' and secondary cooling blower 32 ' on described one-level cooler 2 ', the secondary coolers 3 '.Thick gas blower fan 4 ' is arranged between secondary coolers 3 ' and the plural tablecloth bag dust collector 5 ' plural tablecloth bag dust collector 5 ' parallel connection.Pure qi (oxygen) blower fan 6 ' is arranged on the exhaust pass of plural tablecloth bag dust collector 5 '.Closed conveying scrapper conveyor 7 ' is arranged on the lower end of cyclone settling chamber 11 ', one-level cooler 2 ', secondary coolers 3 ' and plural tablecloth bag dust collector 5 ' and is communicated with the lower end of cyclone settling chamber 1 ', one-level cooler 2 ', secondary coolers 3 ' and plural tablecloth bag dust collector 5 '.
The job analysis of this closed electric furnace dry-method dust-removal device is as follows:
Closed electric furnace furnace gas normal condition temperature is 400～700 ℃, and its instantaneous temperature can reach 1000 ℃ during the improper working of a furnace.Because furnace gas temperature is too high, the distance that tens meters (about 40 meters) are arranged before with this furnace gas transportation and cooling system, must adopt the water cold sleeve (not shown) to carry out the gas transmission and reach simultaneously a certain amount of cooling purpose, under normal operation, the furnace gas temperature of this moment can be down to 300～500 ℃, then gas enters the cyclone settling chamber 1 ' of dust pelletizing system, owing to contain tar in the closed electric furnace furnace gas, spending when low tar in the high-temperature gas when cryogenic object or gas temperature can separate out, be adsorbed on the cloth bag of tube wall and sack cleaner 5 ', lose the effect of cooling, thereby make cloth bag burn cloth bag owing to temperature raises, because tar is separated out the filter bag surface that is adsorbed on sack cleaner 5 ', make it lose filtering function simultaneously.Therefore the cooler in the dust pelletizing system can not sub-cooled, causes its temperature excessively low.So adopt the but cooler of temperature technology of controlled refrigeration, be controlled at (220～260 ℃) in the safe range to guarantee furnace gas temperature, realize neither can having tar to separate out because furnace gas temperature is low, can be because of the high purpose of burning cloth bag of furnace gas temperature yet.In addition for the dust removing effects of protecting cloth bag dust collector 5 ', used two-stage cooler: one-level cooler 2 ', secondary coolers 3 ', its Main Function: one, reduce the undesired high low temperature furnace gas temperature difference of moment, is provided to the cooling blower acceleration and deceleration time of adequate reaction; Two, increase film-cooled heat.When gas when entering sack cleaner 5 ', be higher than dew-point temperature in order to guarantee the temperature in the sack cleaner 5 ', will be incubated sack cleaner 5 ' integral body, guarantee sack cleaner 5 ' normal operation.Last gas is extracted out by pure qi (oxygen) blower fan 6 ' and is sent to limekiln or other use.The dust that cyclone settling chamber 1 ', one-level cooler 2 ', secondary coolers 3 ' and plural tablecloth bag dust collector 5 ' are collected is delivered to ash-storing bin 8 ' through closed conveying scrapper conveyor 7 ', transports outward by automobile airtight at last.
Under the abnormal condition; when the electric furnace special circumstances such as material of collapsing occur; the moment flue gas that produces, because time moment is too short, two coolers also have little time flue gas is cooled off; therefore the temperature of advancing sack cleaner 5 ' is very high; generally about the 400-500 degree, and the maximum temperature that cloth bag bears will all be burnt the cloth bag of sack cleaner 5 ' the inside below 280 degree in this case; cause dust arrester to use, must shut down maintenance and change cloth bag.Also there is not good solution in the present industry of this problem.
The utility model content
The technical problems to be solved in the utility model provides the closed electric furnace dry-dedusting system, solves electric furnace moment material that collapses, the problem that causes dust arrester to use at a large amount of high-temperature gas of utmost point short time generation.
The utility model solves the problems of the technologies described above by the following technical solutions: the closed electric furnace dry-dedusting system, comprise existing dust arrester (1), existing dust arrester (1) comprises the first cyclone settling chamber (11), the first one-level cooler (12), the first secondary coolers (13), the first thick gas blower fan (14), plural number platform the first sack cleaner (15), the first pure qi (oxygen) blower fan (16), the first closed conveying scrapper conveyor (17), the first ash-storing bin (18), the entrance termination furnace gas of described the first cyclone settling chamber (11) is carried flue 100, described the first cyclone settling chamber (11), the first one-level cooler (12), the first secondary coolers (13) and plural platform the first sack cleaner (15) are communicated with successively, the first thick gas blower fan (14) is arranged between the first secondary coolers (13) and plural platform the first sack cleaner (15), the parallel connection of plural number platform the first sack cleaner (15), the first pure qi (oxygen) blower fan (16) is arranged on the exhaust pass of plural platform the first sack cleaner (15), the first cyclone settling chamber (11), the first one-level cooler (12), the lower end of the first secondary coolers (13) and plural platform the first sack cleaner (15) is communicated with the first ash-storing bin (18) by the first closed conveying scrapper conveyor (17)
Carry between the flue (100) at the arrival end of described the first cyclone settling chamber (11) and furnace gas to be provided with one first transfer valve (101), described closed electric furnace dry-dedusting system also comprises at least one group of high temperature shunting device, at least one group of bypass dust arrester;
Described every group of high temperature shunting device comprises the second cyclone settling chamber (21), the second one-level cooler (22), the second secondary coolers (23), the second thick gas blower fan (24), plural number platform the second sack cleaner (25), the second pure qi (oxygen) blower fan (26), the second closed conveying scrapper conveyor (27), the second ash-storing bin (28), the entrance termination furnace gas of described the second cyclone settling chamber (21) is carried flue (100), carry between the flue (100) at the arrival end of described the second cyclone settling chamber (21) and furnace gas and also to be provided with one second transfer valve 102, described the second cyclone settling chamber (21), the second one-level cooler (22), the second secondary coolers (23) and plural platform the second sack cleaner (25) are communicated with successively, the second thick gas blower fan (24) is arranged between the second secondary coolers (23) and plural platform the second sack cleaner (25), the parallel connection of plural number platform the second sack cleaner (25), the second pure qi (oxygen) blower fan (26) is arranged on the exhaust pass of plural platform the second sack cleaner (25), the second cyclone settling chamber (21), the second one-level cooler (22), the lower end of the second secondary coolers (23) and plural platform the second sack cleaner (25) is communicated with the second ash-storing bin (28) by the second closed conveying scrapper conveyor (27);
Described every group of bypass dust arrester comprises the 3rd cooler (32) that is communicated with successively setting, cyclone dust collectors monomer (34), the entrance termination furnace gas of the 3rd cooler (32) is carried flue (100), carry between the flue (100) at the arrival end of described the 3rd cooler (32) and furnace gas and to be provided with one the 3rd transfer valve (103), the arrival end of the first pure qi (oxygen) blower fan (16) of the described existing dust arrester of outlet termination of cyclone dust collectors monomer (34), the lower end of the 3rd cooler (32) and cyclone dust collectors monomer (24) all are communicated with the first closed conveying scrapper conveyor (17) of existing dust arrester.
The utility model further is improved to, and is respectively equipped with the first one-level cooling blower (122) and the first secondary cooling blower (132) on described the first one-level cooler (12), the first secondary coolers (13).
The utility model further is improved to, and is respectively equipped with the second one-level cooling blower (222) and the second secondary cooling blower (232) on described the second one-level cooler (22), the second secondary coolers (23).
The utility model further is improved to, and described the 3rd cooler (32) is provided with the 3rd cooling blower (322).
The utility model further is improved to, and what described the first one-level cooler (12), the first secondary coolers (13), the second one-level cooler (22), the second secondary coolers (23) and the 3rd cooler (32) were selected all is heat pipe air coolers.
The utility model further is improved to, and described the first transfer valve (101), the second transfer valve 102 and the 3rd transfer valve (103) all are connected to a PLC control system
The advantage of the utility model closed electric furnace dry-dedusting system is: under the abnormal condition; when the electric furnace special circumstances such as material of collapsing occur; when stove collapses material generation moment flue gas; under the interlock effect of electric automatic control, switch by the PLC control system, existing dust arrester is quit work; bypass dust arrester startup work; flue gas is by the dedusting of bypass dust arrester, thereby protected the cloth bag in the sack cleaner not burnt, and also played the effect of dedusting simultaneously.And dust arrester is designed to the using and the reserved, when dust pelletizing system need to be overhauled, just can switch to the high temperature bypass by transfer valve and use, and does not so just need blowing out, and the cloth bag of changing in the sack cleaner is like this equally.Be that dust arrester does not all need the blowing out operation when maintenance and replacing cloth bag, thereby improved production capacity, avoid causing the loss of economic interests.
Description of drawings
Fig. 1 is the structural representation of existing a kind of closed electric furnace dry-method dust-removal device.
Fig. 2 is the structural representation of the utility model closed electric furnace dry-dedusting system.
The specific embodiment
See also Fig. 2, the utility model closed electric furnace dry-dedusting system comprises existing dust arrester, at least one group of high temperature shunting device, at least one group of bypass dust arrester and PLC control system (not shown).Only show one group of high temperature shunting device and one group of bypass dust arrester among Fig. 2, but persons skilled in the art should know, the above high temperature shunting device of two groups or two groups and bypass dust arrester are set all can reach effect of the present utility model.
Existing dust arrester comprises cyclone settling chamber 11, one-level cooler 12, secondary coolers 13, thick gas blower fan 14, plural tablecloth bag dust collector 15, pure qi (oxygen) blower fan 16, closed conveying scrapper conveyor 17, ash-storing bin 18.
The entrance termination furnace gas of described cyclone settling chamber 11 is carried flue 100, carry between the flue 100 at the arrival end of described cyclone settling chamber 11 and furnace gas to be provided with one first transfer valve 101, described cyclone settling chamber 11, one-level cooler 12, secondary coolers 13 and plural tablecloth bag dust collector 15 are communicated with successively.Be respectively equipped with one-level cooling blower 122 and secondary cooling blower 132 on described one-level cooler 12, the secondary coolers 13.Thick gas blower fan 14 is arranged between secondary coolers 13 and the plural tablecloth bag dust collector 15 plural tablecloth bag dust collector 15 parallel connections.Pure qi (oxygen) blower fan 16 is arranged on the exhaust pass of plural tablecloth bag dust collector 15.Closed conveying scrapper conveyor 17 is arranged on the lower end of cyclone settling chamber 11, one-level cooler 12, secondary coolers 13 and plural tablecloth bag dust collector 15 and is communicated with the lower end of cyclone settling chamber 11, one-level cooler 12, secondary coolers 13 and plural tablecloth bag dust collector 15.Ash-storing bin 18 is arranged on closed conveying scrapper conveyor 17 ports of export.
After high temperature dust closed electric furnace furnace gas is pre-cooled through the water cold sleeve (not shown), furnace gas temperature is down to 300～500 ℃, then gas carries flue to enter cyclone settling chamber 11 by furnace gas, and then enter one-level cooler 12, secondary coolers 13, slightly large dust is delivered to ash-storing bin 18 through closed conveying scrapper conveyor 17, slightly little dust is lowered the temperature with furnace gas, deliver in the sack cleaner 15 of plural platform parallel connection through thick gas blower fan 14, extract out through pure qi (oxygen) blower fan 16 again through the furnace gas of sack cleaner 15 and be sent to limekiln or other use.The dust that cyclone settling chamber 11, one-level cooler 12, secondary coolers 13 and plural tablecloth bag dust collector 15 are collected is delivered to ash-storing bin 18 through closed conveying scrapper conveyor 17, transports outward by automobile airtight at last.
Described every group of high temperature shunting device comprises cyclone settling chamber 21, one-level cooler 22, secondary coolers 23, thick gas blower fan 24, plural tablecloth bag dust collector 25, pure qi (oxygen) blower fan 26, closed conveying scrapper conveyor 27, ash-storing bin 28.
The entrance termination furnace gas of described cyclone settling chamber 21 is carried flue 100, carry between the flue 100 at the arrival end of described cyclone settling chamber 21 and furnace gas also to be provided with one second transfer valve 102, described cyclone settling chamber 21, one-level cooler 22, secondary coolers 23 and plural tablecloth bag dust collector 25 are communicated with successively.Be respectively equipped with one-level cooling blower 222 and secondary cooling blower 232 on described one-level cooler 22, the secondary coolers 23.Thick gas blower fan 24 is arranged between secondary coolers 23 and the plural tablecloth bag dust collector 25 plural tablecloth bag dust collector 25 parallel connections.Pure qi (oxygen) blower fan 26 is arranged on the exhaust pass of plural tablecloth bag dust collector 25.Closed conveying scrapper conveyor 27 is arranged on the lower end of cyclone settling chamber 21, one-level cooler 22, secondary coolers 23 and plural tablecloth bag dust collector 25 and is communicated with the lower end of cyclone settling chamber 21, one-level cooler 22, secondary coolers 23 and plural tablecloth bag dust collector 25.Ash-storing bin 288 is arranged on closed conveying scrapper conveyor 27 ports of export.
The course of work and the existing dust arrester of each equipment in described every group of high temperature shunting device 10 are identical.
Described every group of bypass dust arrester comprises cooler 32, the cyclone dust collectors monomer 34 that is communicated with successively setting.The entrance termination furnace gas of cooler 32 is carried flue 100, carries between the flue 100 at the arrival end of described cooler 32 and furnace gas to be provided with one the 3rd transfer valve 103.Cooler 32 is provided with the 3rd cooling blower 322, the arrival end of the pure qi (oxygen) blower fan 16 of the described existing dust arrester of outlet termination of cyclone dust collectors monomer 34.The lower end of cooler 32 and cyclone dust collectors monomer 24 all is communicated with the closed conveying scrapper conveyor 17 of existing dust arrester.
Described the first transfer valve 101, the second transfer valve 102, and the 3rd transfer valve 103 all is connected to the PLC control system, switched by the control of PLC control system.Described PLC control system can be CPU or control circuit.
Under normal circumstances; use existing dust arrester to carry out dedusting; under the abnormal condition; when the electric furnace special circumstances such as material of collapsing occur; when stove collapses material generation moment flue gas; just under the interlock effect of electric automatic control; close the first transfer valve 101 of existing dust arrester arrival end by the PLC control system; open the 3rd transfer valve 103 of bypass dust arrester arrival end; existing dust arrester is quit work; bypass dust arrester startup work; flue gas enters 34 dedustings of cyclone dust collectors monomer by cooler 32 and is sent to limekiln or other use by 16 extractions of pure qi (oxygen) blower fan; thereby protected the cloth bag in the sack cleaner 15 not burnt, also played the effect of dedusting simultaneously.
The efficiency of dust collection of this bypass dust arrester can reach 93%, its dust content can be less than 100mg/Nm3, this gas is delivered to gas chamber or limekiln at short notice, can not affect its normal operation, in the perfect situation of design, generally all be designed with desulfurizer in addition, so then in the process of FGD by spraying mist also with the dust washes clean in the gas, operating temperature can reach below 600 degree, adapts to the moment high-temperature flue gas that when material produce that collapses fully.The operation principle of cyclone dust collectors monomer 34 is exactly that dusty gas enters tornadotron by entrance, become swirling eddy, produce centrifugal force, dust granules is separated from the gas, and dust is thrown to barrel, and move downward with air-flow, until be discharged in the airtight ash bucket, purify rear gas and upwards go up along escape pipe from the tornadotron centre bottom, rise to gas outlet and discharge, what the utility model used is many imports cyclone dust collectors monomer 34, is comprised of some such tornadotrons.
But the bypass dust arrester service time can not be long, generally can not surpass one day time, and its main purpose is as of short duration emergency treatment in more special situation.As long-term solution, the furnace gas dust pelletizing system preferably will be designed to the using and the reserved, namely contain at least one cover high temperature shunting device, when existing dust arrester need to overhaul, just can close the first transfer valve 101, the second transfer valve 102 by the control of PLC control system, open the 3rd transfer valve 103 and switch to the high temperature shunting device and use, so just do not need blowing out, it is like this equally to change cloth bag.
The capital equipment explanation of this closed electric furnace dry-dedusting system.
1, cyclone settler
According to closed electric furnace in process of production furnace gas can take high temperature carbon granule and the higher characteristics of dust concentration such as coke or blue carbon out of, for fear of because gas temperature is spent low tar in the furnace gas is analysed and because the too high consequence of burning dust-collecting bag of gas temperature, selected cyclone settler 11,21, described cyclone settler 11,21 can adopt existing commercially available cyclone settler, also can select the cyclone tube-type combined cooler of the applicant's patent No. 201010108784.1.Cyclone settler 11,21 select and can effectively avoid the loss that causes greatly owing to closed electric furnace furnace gas temperature instantaneous variation guarantee the stability of furnace gas, give on the other hand the reaction time of cooling blower abundance.Cooling blower adopts the frequency control blower fan, and chain with the outlet furnace gas temperature.When the furnace gas parameter changes, automatically regulate cold flow, control furnace gas export temperature is about 220 ℃.
2, one-level cooler, the secondary coolers in existing dust arrester and the high temperature shunting device
What the cooler 32 of one-level cooler 22, secondary coolers 23 and bypass dust arrester in one-level cooler 12, secondary coolers 13 and the high temperature shunting device in the existing dust arrester was selected all is heat pipe air coolers.The heat pipe air cooler can high efficiencyly be lowered the temperature, and prevents that containing the Mars particle from electric furnace gas out enters sack cleaner, causes cloth bag to burn.Prolong the service life of bags in bag-type dust remover, guarantee efficiency of dust collection, and the heat pipe air cooler can carry out effective temperature control in the situation of fluctuation of operating conditions.In the control of the cooling blower of many heat pipes air cooler, be equipped with VFC, purpose is in order further to carry out temperature control, and namely the cooling blower 322 of one-level cooling blower 222, secondary cooling blower 232 and the bypass dust arrester in one-level cooling blower 122, secondary cooling blower 132 and the high temperature shunting device in the existing dust arrester is the frequency control blower fan.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. closed electric furnace dry-dedusting system, comprise existing dust arrester (1), existing dust arrester (1) comprises the first cyclone settling chamber (11), the first one-level cooler (12), the first secondary coolers (13), the first thick gas blower fan (14), plural number platform the first sack cleaner (15), the first pure qi (oxygen) blower fan (16), the first closed conveying scrapper conveyor (17), the first ash-storing bin (18), the entrance termination furnace gas of described the first cyclone settling chamber (11) is carried flue 100, described the first cyclone settling chamber (11), the first one-level cooler (12), the first secondary coolers (13) and plural platform the first sack cleaner (15) are communicated with successively, the first thick gas blower fan (14) is arranged between the first secondary coolers (13) and plural platform the first sack cleaner (15), the parallel connection of plural number platform the first sack cleaner (15), the first pure qi (oxygen) blower fan (16) is arranged on the exhaust pass of plural platform the first sack cleaner (15), the first cyclone settling chamber (11), the first one-level cooler (12), the lower end of the first secondary coolers (13) and plural platform the first sack cleaner (15) is communicated with the first ash-storing bin (18) by the first closed conveying scrapper conveyor (17), it is characterized in that:
Carry between the flue (100) at the arrival end of described the first cyclone settling chamber (11) and furnace gas to be provided with one first transfer valve (101), described closed electric furnace dry-dedusting system also comprises at least one group of high temperature shunting device, at least one group of bypass dust arrester;
Described every group of high temperature shunting device comprises the second cyclone settling chamber (21), the second one-level cooler (22), the second secondary coolers (23), the second thick gas blower fan (24), plural number platform the second sack cleaner (25), the second pure qi (oxygen) blower fan (26), the second closed conveying scrapper conveyor (27), the second ash-storing bin (28), the entrance termination furnace gas of described the second cyclone settling chamber (21) is carried flue (100), carry between the flue (100) at the arrival end of described the second cyclone settling chamber (21) and furnace gas and also to be provided with one second transfer valve (102), described the second cyclone settling chamber (21), the second one-level cooler (22), the second secondary coolers (23) and plural platform the second sack cleaner (25) are communicated with successively, the second thick gas blower fan (24) is arranged between the second secondary coolers (23) and plural platform the second sack cleaner (25), the parallel connection of plural number platform the second sack cleaner (25), the second pure qi (oxygen) blower fan (26) is arranged on the exhaust pass of plural platform the second sack cleaner (25), the second cyclone settling chamber (21), the second one-level cooler (22), the lower end of the second secondary coolers (23) and plural platform the second sack cleaner (25) is communicated with the second ash-storing bin (28) by the second closed conveying scrapper conveyor (27);
Described every group of bypass dust arrester comprises the 3rd cooler (32) that is communicated with successively setting, cyclone dust collectors monomer (34), the entrance termination furnace gas of the 3rd cooler (32) is carried flue (100), carry between the flue (100) at the arrival end of described the 3rd cooler (32) and furnace gas and to be provided with one the 3rd transfer valve (103), the arrival end of the first pure qi (oxygen) blower fan (16) of the described existing dust arrester of outlet termination of cyclone dust collectors monomer (34), the lower end of the 3rd cooler (32) and cyclone dust collectors monomer (24) all are communicated with the first closed conveying scrapper conveyor (17) of existing dust arrester.
2. closed electric furnace dry-dedusting system according to claim 1 is characterized in that: be respectively equipped with the first one-level cooling blower (122) and the first secondary cooling blower (132) on described the first one-level cooler (12), the first secondary coolers (13).
3. closed electric furnace dry-dedusting system according to claim 2 is characterized in that: be respectively equipped with the second one-level cooling blower (222) and the second secondary cooling blower (232) on described the second one-level cooler (22), the second secondary coolers (23).
4. closed electric furnace dry-dedusting system according to claim 3, it is characterized in that: described the 3rd cooler (32) is provided with the 3rd cooling blower (322).
5. closed electric furnace dry-dedusting system according to claim 1, it is characterized in that: what described the first one-level cooler (12), the first secondary coolers (13), the second one-level cooler (22), the second secondary coolers (23) and the 3rd cooler (32) were selected all is heat pipe air coolers.
6. closed electric furnace dry-dedusting system according to claim 1, it is characterized in that: described the first transfer valve (101), the second transfer valve 102 and the 3rd transfer valve (103) all are connected to a PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220146799.1U CN202666620U (en) | 2012-04-10 | 2012-04-10 | Sealed electric furnace dry method dust removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220146799.1U CN202666620U (en) | 2012-04-10 | 2012-04-10 | Sealed electric furnace dry method dust removal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202666620U true CN202666620U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220146799.1U Withdrawn - After Issue CN202666620U (en) | 2012-04-10 | 2012-04-10 | Sealed electric furnace dry method dust removal system |
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| Country | Link |
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| CN (1) | CN202666620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641637A (en) * | 2012-04-10 | 2012-08-22 | 安徽省元琛环保科技有限公司 | Dust removal system with novel bypass device |
| CN108619810A (en) * | 2018-06-08 | 2018-10-09 | 金方圆安全技术研究院（苏州）有限公司 | A kind of quick-fried safety engineering integrated system of wooden dust high-effective dust-removing control |
-
2012
- 2012-04-10 CN CN201220146799.1U patent/CN202666620U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641637A (en) * | 2012-04-10 | 2012-08-22 | 安徽省元琛环保科技有限公司 | Dust removal system with novel bypass device |
| CN102641637B (en) * | 2012-04-10 | 2014-03-26 | 安徽省元琛环保科技有限公司 | Dust removal system with bypass device, one for use and one for spare |
| CN108619810A (en) * | 2018-06-08 | 2018-10-09 | 金方圆安全技术研究院（苏州）有限公司 | A kind of quick-fried safety engineering integrated system of wooden dust high-effective dust-removing control |
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