CN103279152B - Double cooling protection and control system of intermediate frequency furnace smelting smoke bag-type dust remover - Google Patents
Double cooling protection and control system of intermediate frequency furnace smelting smoke bag-type dust remover Download PDFInfo
- Publication number
- CN103279152B CN103279152B CN201310234088.9A CN201310234088A CN103279152B CN 103279152 B CN103279152 B CN 103279152B CN 201310234088 A CN201310234088 A CN 201310234088A CN 103279152 B CN103279152 B CN 103279152B
- Authority
- CN
- China
- Prior art keywords
- bag
- air
- wild
- temperature
- preposition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a double cooling protection and control system of an intermediate frequency furnace smelting smoke bag-type dust remover. The double cooling protection and control system of the intermediate frequency furnace smelting smoke bag-type dust remover comprises a smelting electric furnace, a dust collection furnace lid, a main air duct, a cyclone dust collector, a middle air duct, a bag-type dust remover, an induced draft fan and an exhaust funnel, wherein a two stage temperature measurement protection systems which are controlled by a control compute are arranged on the main air duct and the middle air duct. A first stage temperature measurement protection system comprises a front temperature measurement head and a front wild wind valve, the front temperature measurement head detects the smoke temperature signal inside the main air duct and transmits the smoke temperature signal to the control computer, the control computer processes the smoke temperature signal and sends a work instruction to the front wild wind valve, and the first stage temperature measurement protection system is formed. A second-stage temperature measurement protection system comprises a before-bag temperature measurement head and a before-bag wild wind valve, the before-bag temperature measurement head detects the smoke temperature signal inside the middle air duct and transmits the smoke temperature signal to the control computer, the control computer processes the smoke temperature signal and sends a work instruction to the front-bag wild wind valve, and the second-stage temperature measurement protection system is formed. According to the double cooling protection and control system of the intermediate frequency furnace smelting smoke bag-type dust remover, double protection is adopted, the fault rate is low, and the reliability of the continuous operation of the system equipment is high.
Description
Technical field
The present invention relates to the cooling of intermediate frequency furnace melting high-temperature smoke and sack cleaner filter bag protection system, refer in particular to a kind of energy Automatic Detection and Control, effectively reduce the two cooling protection control system of the intermediate frequency furnace melting flue dust sack cleaner entering filter bag flue dust temperature.
Background technology
Mid-frequency melting furnace has become the main smelting equipment of cast iron, cast steel at present, because belonging to high melt, and furnace charge mostly is the pig iron, steel scrap, the flue dust of generation contains toxic and harmful and a large amount of dust, need to collect this high-temperature smoke and after fly-ash separator filters standard discharge.The filter bag used in current sack cleaner is terylene needled felt, its working temperature is generally 120 DEG C, moment 150 DEG C, if the flue dust temperature entering sack cleaner has exceeded, and can not be lowered the temperature in time, then enter dirt pocket there will be filter bag burning bag and stick with paste bag, filter area is caused to reduce, resistance increases, also filter bag accelerated deterioration can be caused, serviceable life obviously shortens, operation expense increases greatly, this temperature detects by being arranged on temperature measuring head before the ducted bag of sack cleaner air inlet, if temperature exceedes 120 DEG C of setting, pass into the wild wind forced cooling of normal temperature, thus reach and control the wind-warm syndrome that enters in fly-ash separator below working temperature, ensure filter bag safety, if flue dust temperature can not get effective restriction, occur more paste bag or aging conditions, sack cleaner filter effect will be caused to worsen, resistance increases, and fan energy consumption increases, and life of bag filter shortens greatly, and maintain and replace number of times is frequent, and operation cost is high.This temperature control mode is the mode that current each producer generally uses.
But, there is following aspect problem in this mode: because the thermotonus of temperature thermocouple head is generally delayed, before bag, temperature measuring head distance sack cleaner is very near again, the existing delay when the flue dust temperature that computer for controlling measures exceedes design temperature, in addition the wild air-valve action introducing normal temperature air cooling also has delay, part overtemperature flue dust reality has entered in the filter chamber of sack cleaner, may cause filter bag and threaten even burning bag, paste bag; And be generally arranged on outdoor because sack cleaner is bulky, before bag, wild air-valve installation site is also positioned at outdoor, only block as rain-proof shelter, when outdoor rainwater, there was dampness in the air time introduce wild wind water cut larger, more easily cause condensation in filter bag surface dust bonding, casing, cause similar paste bag, effective filtration area reduces, and filter effect is deteriorated, and resistance increases, energy ezpenditure increases, on general fact, stick with paste bag, this situation ubiquity of knot bag, poor filtration effect, serviceable life shortens greatly, becomes the problem that user has a headache the most.There is no the two protecting control technology of effective intermediate frequency furnace melting flue dust sack cleaner cooling at present.
Summary of the invention
The object of the invention is, for the shortcoming existed in background technology and problem in addition improvement and bring new ideas, to provide a kind of intermediate frequency furnace melting flue dust sack cleaner two cooling protection control system.
Technical scheme of the present invention is that structure a kind ofly comprises the intermediate frequency (IF) smelting electric furnace connected successively disposed in the interior, flue dust collecting bell and air main, and the tornado dust collector connected successively disposed in the outdoor, middle airduct, sack cleaner, the two cooling protection control system of intermediate frequency furnace melting flue dust sack cleaner of induced draft fan and aiutage, the melting high-temperature smoke that wherein intermediate frequency (IF) smelting electric furnace produces is collected by flue dust collecting bell, tornado dust collector one-time dedusting is delivered to through air main, sack cleaner final dusting is delivered to again through middle airduct, discharge finally by induced draft fan and aiutage, its air main and middle airduct are provided with the two-stage thermometric protection system controlled by computer for controlling, wherein:
One-level thermometric protection system comprises the preposition temperature measuring head being arranged on air main leading portion, with the preposition wild air-valve being arranged on air main back segment, the wild wind of control normal temperature laboratory enters, and preposition temperature measuring head and the equal connection control computing machine of preposition wild air-valve, described preposition temperature measuring head detects flue dust temperature signal in air main and is sent to computer for controlling, then after computer for controlling process, sends work order to preposition wild air-valve formation one-level thermometric cooling protection;
Secondary thermometric protection system comprises temperature measuring head before the bag being arranged on middle airduct leading portion; with be arranged on wild air-valve before bag that the wild wind of normal temperature outside middle airduct back segment, pulpit enters; and wild air-valve also connection control computing machine before temperature measuring head and bag before bag; before described bag, temperature measuring head detects flue dust temperature signal in middle airduct and is sent to computer for controlling, then send work order to bag after computer for controlling process before, wild air-valve forms secondary thermometric alarm and protection.
Advantage of the present invention and beneficial effect:
Sack cleaner is the core link that mid-frequency melting furnace flue dust collecting filters standard discharge; and wherein filter bag is sack cleaner " lung "; be the core in core, filter bag Yin Gaowen is impaired is the main reason that fly-ash separator lost efficacy, and available protecting filter bag is extremely important from high-temperature smoke infringement.The present invention adds a preposition thermometric, wild wind cooling link on air main, in conjunction with the cooling link of middle airduct, forms two-stage observing and controlling link and fast and reliable can effectively protect filter bag safety.Preposition thermometric, the cooling of wild wind is just carried out at system leading portion and main air pipeline section; antedating response; timely cooling; before adding bag, secondary thermometric, wild wind are lowered the temperature; dicyclo saves reliable cooling protection and adopts indoor comparatively dry air cooling, solves original monocycle joint bag pre-structure thermometric, the delayed root problem causing the cooling of safeguard measure weak effect, outdoor humid air easily to stick with paste bag of wild wind cooling.Because filter bag quantity is many, price is higher, it is the prime cost of fly-ash separator, mainly run repair and maintenance cost especially, after adopting duplicate protection, filter bag failure rate comparatively adopts monocycle to save protection reduction more than at least 80%, and sack cleaner failure rate reduces by more than 10%, energy-conservation more than 10%, the continuous operational reliability of system equipment improves greatly, because filter bag malfunction and failure causes the flue dust outer row's situation that exceeds standard to greatly reduce, has good social and economic benefits; Simultaneously the technology of the present invention also has dissemination to metallurgy, casting, building materials, mine, chemical industry, the reliable cooling protection filter bag of power industry fly-ash separator high-temperature smoke, economy like this and social benefit more obvious.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Fig. 2 is present invention process principle schematic.
Embodiment
By Fig. 1, 2 is known, the present invention includes the intermediate frequency (IF) smelting electric furnace 1 connected successively disposed in the interior, flue dust collecting bell 3 and air main 4, and the tornado dust collector 5 connected successively disposed in the outdoor, middle airduct 6, sack cleaner 7, induced draft fan 8 and aiutage 9, the melting high-temperature smoke 2 that wherein intermediate frequency (IF) smelting electric furnace 1 produces is collected by flue dust collecting bell 3, tornado dust collector 5 one-time dedusting is delivered to through air main 4, sack cleaner 7 final dusting is delivered to again through middle airduct 6, discharge finally by induced draft fan 8 and aiutage 9, its air main 4 and middle airduct 6 are provided with the two-stage thermometric protection system controlled by computer for controlling 13, wherein:
One-level thermometric protection system comprises the preposition temperature measuring head 14 being arranged on air main 4 leading portion, with the preposition wild air-valve 15 being arranged on air main 4 back segment, the wild wind 16 of control normal temperature laboratory enters, and preposition temperature measuring head 14 and preposition wild air-valve 15 all connection control computing machines 13, described preposition temperature measuring head 14 detects flue dust temperature signal in air main 4 and is sent to computer for controlling 13, then after computer for controlling 13 processes, sends work order to preposition wild air-valve 15 and form one-level thermometric cooling protection;
Secondary thermometric protection system comprises temperature measuring head 10 before the bag being arranged on middle airduct 6 leading portion; with be arranged on wild air-valve 11 before bag that the wild wind 12 of normal temperature outside middle airduct 6 back segment, pulpit enters; and wild air-valve 11 also connection control computing machine 13 before temperature measuring head 10 and bag before bag; before described bag, temperature measuring head 10 detects flue dust temperature signal in middle airduct 6 and is sent to computer for controlling 13, then send work order to bag after computer for controlling 13 processes before, wild air-valve 11 forms secondary thermometric alarm and protection.
Before preposition temperature measuring head 14 of the present invention and bag, temperature measuring head 10 is thermocouple temperature measurement head.Described air main 4 and preposition temperature measuring head 14 and preposition wild air-valve 15 are all arranged on factory building indoor, and the main cooling completing melting high-temperature smoke 2 by introducing the wild wind of indoor seasoning normal temperature processes.
Design concept of the present invention:
Postpone not reach fast cooling thus the situation that may cause burning bag for detected temperatures reflection before sack cleaner air inlet, propose, at air main 4 leading portion, the preposition temperature measuring head 14 of a set of thermopair is installed, and at the indoor back segment of air main 4 factory building, preposition wild air-valve 15 is installed, when by preposition temperature measuring head 14, computing machine detects that temperature exceedes setting value (as 125 DEG C, this value need set through on-the-spot test according to the minimum cooling extent of pipeline or tornado dust collector 5), open at once and be positioned at indoor preposition wild air-valve 15, rapid introducing normal temperature indoor seasoning air, reduce flue dust temperature in airduct, thus reach and ensure that the flue dust temperature entering sack cleaner 7 is no more than 120 DEG C and the object kept dry.And be originally positioned at temperature measuring head 10 before the bag of middle airduct 6, before bag, wild air-valve 11 is as emergency power, namely when temperature measuring head before bag 10 still measures more than 120 DEG C wind-warm syndrome, provide alerting signal, and the wild wind 12 of outdoor normal temperature introduced by wild air-valve 11 before opening bag nearby, reach the object of answering quench, but because of preposition temperature measuring head 14, the cooling of first class of protection in advance of preposition wild air-valve 15, the number of times that before bag, wild air-valve 11 is opened can greatly reduce, reach the object of filter bag in protecting cloth bag dust collector 7, thus ensure that filter effect, ensure that filter bag safety, reach energy-conservation, reduce the object of operating cost, also to the popularization of mid-frequency melting furnace energy-saving and smoke-removing dust pelletizing system, there is profound significance simultaneously, this technology can also be applied to other metallurgy, casting, the temperature control protection of the bag-type dust removal system of the industry smelting furnaces such as renewable resource utilization.
Structural principle of the present invention:
The present invention is made up of temperature measuring head 10, preposition temperature measuring head 14 before air-valve 11 wild before intermediate frequency (IF) smelting electric furnace 1, flue dust collecting bell 3, air main 4, tornado dust collector 5, middle airduct 6, sack cleaner 7, induced draft fan 8, aiutage 9, bag, preposition wild air-valve 15, bag, it adds a set of preposition temperature measuring head 14, preposition wild air-valve 15 on the indoor air main 4 of factory building, monitor as one-level wind-warm syndrome, thus the flue dust temperature that effectively can control to enter sack cleaner is no more than filter bag working temperature (be generally 120 DEG C, can set according to filter bag material and temperature-resistance characteristic); Together form flue dust dicyclo with thermometric link of protection before original bag and save thermometric cooling protection technology; reliably protecting filter bag and fly-ash separator; and the air cooling-down that main indoor of introducing are comparatively dry; can not cause because introducing humid air sticking with paste bag; because filter bag is effectively protected; resistance reduces, and energy-saving effect is obvious.
The present invention is in casting smelting plant building, and intermediate frequency (IF) smelting electric furnace 1 produces melting high-temperature smoke 2, is collected by bidirectional turning flue dust collecting bell 3, is inhaled into and is arranged in trench or built on stilts air main 4; Enter spark again and flutter collection tornado dust collector 5 primary dust removing, then enter sack cleaner 7 two-stage dust removal by middle airduct 6, then through induced draft fan 8, aiutage 9 discharged in air.
One-level thermometric protection system of the present invention: the preposition temperature measuring head 14 being installed on air main 4 leading portion can detect flue dust temperature in time and send dust pelletizing system computer for controlling 13 to, be installed on the indoor back segment of air main 4 preposition wild air-valve 15 and before being installed on outdoor interlude airduct bag wild air-valve can be regulated by computer for controlling 13, when flue dust temperature is higher than setting limit value, regulate preposition wild air-valve 15 to open at once and introduce indoor comparatively dry air, flue dust temperature in rapid reduction air main, enter the link of two-stage dedusting below again, ensure that flue dust temperature detection is timely, wild wind of lowering the temperature introduces timely cooling in time, ensure the filter bag safety in second level sack cleaner 7, and because of the cooling air introduced be indoor comparatively dry, avoid sticking with paste bag.
Secondary thermometric protection system of the present invention: whether the flue dust temperature that before being installed on the bag of outdoor middle airduct 6 leading portion, temperature measuring head 10 enters sack cleaner 7 as second energy-conservation measurement of detection ring exceedes setting alarming value; if exceeded, illustrate and need report to the police and send dust pelletizing system computer for controlling 13 to; before being installed on the bag of outdoor middle airduct 6 back segment, wild air-valve 11 can be regulated by computer for controlling 13; direct cooling, ensures filter bag safety.
As shown in Figure 1, the present invention adds a preposition observing and controlling link on the anterior air main 4 of system, constitutes dicyclo and saves observing and controlling, thus ensure that the validity of observing and controlling with observing and controlling link before bag.When melting flue dust enters air main 4, preposition temperature measuring head 14 measure flue dust temperature exceed setting monitoring value time, computer for controlling 13 regulates rapidly opens the normal temperature air reduction flue dust temperature that comparatively drying in factory building introduced by preposition wild air-valve 15, again through tornado dust collector 5 dedusting Temperature fall, if still temperature exceeding standard, then in second thermometric regulation and control cooling protection link of middle airduct 6 sections, lower the temperature through two-stage observing and controlling, flue dust enters sack cleaner 7, substantially damage burnout phenomenon can not be had to filter bag, and be indoor comparatively dry air coolings because of what introduce, therefore paste bag situation also substantially no longer occurs, flue dust thermometric adjusting function primarily of preposition first link realize, after the second link only little as second alarming protection defence line action frequency.Adopt the intermediate frequency furnace melting dust smoke and extraction system filter bag failure rate after the technology of the present invention protection filter bag scheme to reduce by more than 90%, O&M cost only accounts for the 20%(of total cost not containing the total cost of normal electricity consumption), outer row continues compliance rate and reaches more than 98%, and energy-conservation more than 10%.
Technological principle of the present invention:
As shown in Figure 2, two-stage thermometric cooling protection control flow of the present invention is: steps A 1: the high-temperature smoke that mid-frequency melting furnace melting produces is collected through dedusting bell and mixed suitable wild wind because leaking out and enters air main in factory building (through trench or built on stilts); Steps A 2: be installed on the preposition temperature measuring head thermometric of air main leading portion and pass to dust pelletizing system computer for controlling; Steps A 3: the flue dust temperature measured compares with setting limits value by computer for controlling, judges whether to exceed setting value, if do not exceeded, then not output action signal, flue dust continues to move ahead, and directly arrives steps A 7, if temperature exceedes setting value, then link of lowering the temperature below entering; Steps A 4-A6: computer for controlling controls to open rapidly preposition wild air-valve, and in factory building, normal temperature air is inhaled into, and reduces overtemperature flue dust temperature in air main rapidly; A7: flue dust enters Spark catcher and tornado dust collector, removing larger particles dust, and have suitably cooling naturally; A8: flue dust enters the middle airduct connected between tornado dust collector and sack cleaner; A9: temperature measuring head thermometric before being installed on the bag of middle airduct leading portion also passes to dust pelletizing system computer for controlling; Steps A 10: the flue dust temperature measured compares with setting limits value by computer for controlling, judges whether to exceed setting value, if do not exceeded, then not output action signal, flue dust continues to move ahead, and directly arrives steps A 14, if temperature exceedes setting value, then link of lowering the temperature below entering; Steps A 11-A13: wild air-valve before computer for controlling controls to open rapidly bag, outdoor normal temperature air is inhaled into, and reduces rapidly entering sack cleaner overtemperature flue dust temperature; Steps A 14-A17: it is up to standard through sock filtration that the flue dust in temperature limit enters sack cleaner, arranges outward through centrifugal induced draught fan, aiutage.Flue dust temperature limiting setting value is according to filter bag filtrate material, temperature-resistance characteristic setting.
Embodiment of the present invention is only the description carried out the preferred embodiment of the present invention; not design of the present invention and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various modification that in this area, engineering technical personnel make technical scheme of the present invention and improvement; protection scope of the present invention all should be fallen into; the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (3)
1. the two cooling protection control system of intermediate frequency furnace melting flue dust sack cleaner, comprise the intermediate frequency (IF) smelting electric furnace (1) connected successively disposed in the interior, flue dust collecting bell (3) and air main (4), and the tornado dust collector (5) connected successively disposed in the outdoor, middle airduct (6), sack cleaner (7), induced draft fan (8) and aiutage (9), the melting high-temperature smoke (2) that wherein intermediate frequency (IF) smelting electric furnace (1) produces is collected by flue dust collecting bell (3), tornado dust collector (5) one-time dedusting is delivered to through air main (4), sack cleaner (7) final dusting is delivered to again through middle airduct (6), discharge finally by induced draft fan (8) and aiutage (9), it is characterized in that:
Air main (4) and middle airduct (6) are provided with the two-stage thermometric protection system controlled by computer for controlling (13), wherein:
One-level thermometric protection system comprises the preposition temperature measuring head (14) being arranged on air main (4) leading portion, with the preposition wild air-valve (15) being arranged on air main (4) back segment, the wild wind (16) of control normal temperature laboratory enters, and preposition temperature measuring head (14) and preposition wild air-valve (15) all connection control computing machines (13), described preposition temperature measuring head (14) is detected air main (4) interior flue dust temperature signal and is sent to computer for controlling (13), then after computer for controlling (13) process, sends work order to preposition wild air-valve (15) formation one-level thermometric cooling protection;
Secondary thermometric protection system comprises temperature measuring head (10) before the bag being arranged on middle airduct (6) leading portion; with be arranged on wild air-valve (11) before bag that the wild wind (12) of normal temperature outside middle airduct (6) back segment, pulpit enter; and wild air-valve (11) also connection control computing machine (13) before temperature measuring head (10) and bag before bag; before described bag, temperature measuring head (10) detects middle airduct (6) interior flue dust temperature signal and is sent to computer for controlling (13), then send work order to bag after computer for controlling (13) process before, wild air-valve (11) forms secondary thermometric alarm and protection.
2. the two cooling protection control system of intermediate frequency furnace melting flue dust sack cleaner according to claim 1, before it is characterized in that described preposition temperature measuring head (14) and bag, temperature measuring head (10) is thermocouple temperature measurement head.
3. the two cooling protection control system of intermediate frequency furnace melting flue dust sack cleaner according to claim 1; it is characterized in that described air main (4) and preposition temperature measuring head (14) and preposition wild air-valve (15) are all arranged on factory building indoor, and complete the main cooling process of melting high-temperature smoke (2) by introducing the wild wind of indoor seasoning normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234088.9A CN103279152B (en) | 2013-06-14 | 2013-06-14 | Double cooling protection and control system of intermediate frequency furnace smelting smoke bag-type dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234088.9A CN103279152B (en) | 2013-06-14 | 2013-06-14 | Double cooling protection and control system of intermediate frequency furnace smelting smoke bag-type dust remover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103279152A CN103279152A (en) | 2013-09-04 |
| CN103279152B true CN103279152B (en) | 2015-02-11 |
Family
ID=49061714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310234088.9A Active CN103279152B (en) | 2013-06-14 | 2013-06-14 | Double cooling protection and control system of intermediate frequency furnace smelting smoke bag-type dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103279152B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066709B (en) * | 2015-07-18 | 2017-07-28 | 青岛中智达环保熔炼设备有限公司 | Electric furnace adds dispensing and smoke abatement and dust control emission reduction integral system automatically |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971191A (en) * | 2006-12-07 | 2007-05-30 | 昆明阳光数字技术股份有限公司 | Process for recovery of excess energy of flue gas from converter |
| CN201199036Y (en) * | 2008-03-14 | 2009-02-25 | 同方环境股份有限公司 | Accident protection control device for cloth bag dust remover |
| CN102297442A (en) * | 2011-07-21 | 2011-12-28 | 中能兴科（北京）节能科技股份有限公司 | Heat accumulating type temperature-reducing and dust-removing system and method |
| CN103055632A (en) * | 2013-01-31 | 2013-04-24 | 盐城市赛隆节能技术工程有限公司 | Temperature controlling and adjusting valve device for cloth bag type dust collector |
| CN203324860U (en) * | 2013-06-14 | 2013-12-04 | 岳阳华中电磁科技有限公司 | Double cooling protection and control system of intermediate frequency furnace smelting smoke dust cloth bag-type dust remover |
-
2013
- 2013-06-14 CN CN201310234088.9A patent/CN103279152B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971191A (en) * | 2006-12-07 | 2007-05-30 | 昆明阳光数字技术股份有限公司 | Process for recovery of excess energy of flue gas from converter |
| CN201199036Y (en) * | 2008-03-14 | 2009-02-25 | 同方环境股份有限公司 | Accident protection control device for cloth bag dust remover |
| CN102297442A (en) * | 2011-07-21 | 2011-12-28 | 中能兴科（北京）节能科技股份有限公司 | Heat accumulating type temperature-reducing and dust-removing system and method |
| CN103055632A (en) * | 2013-01-31 | 2013-04-24 | 盐城市赛隆节能技术工程有限公司 | Temperature controlling and adjusting valve device for cloth bag type dust collector |
| CN203324860U (en) * | 2013-06-14 | 2013-12-04 | 岳阳华中电磁科技有限公司 | Double cooling protection and control system of intermediate frequency furnace smelting smoke dust cloth bag-type dust remover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103279152A (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103279152B (en) | Double cooling protection and control system of intermediate frequency furnace smelting smoke bag-type dust remover | |
| CN202730594U (en) | Asphalt thermal regeneration expansion cylinder fireproofing and pre-warning system | |
| CN203324860U (en) | Double cooling protection and control system of intermediate frequency furnace smelting smoke dust cloth bag-type dust remover | |
| CN103388047B (en) | Converter dry dust-removal system and technique | |
| CN107246401A (en) | A kind of air-introduced machine RB control methods based on draught fan system status monitoring | |
| CN205164327U (en) | Bag -type dust remover | |
| CN103513291A (en) | Analysis early warning system based on air pre-heater bypass sealing air speed for air pre-heater blocking detection | |
| CN103256825B (en) | Method for monitoring cement production soot emission and waste heat power generation system soot emission | |
| CN206177772U (en) | Boiler and air filtration system on -line monitoring device thereof | |
| CN205784644U (en) | Flue gas ash removal residual neat recovering system | |
| CN110834969B (en) | Automatic sediment collecting system that arranges of coal pulverizer stone coal | |
| CN204718357U (en) | A kind of drier controller | |
| CN106595049A (en) | Direct-current frequency-conversion fan assembly of strong-pumping condensation water heater | |
| CN205782896U (en) | A kind of power boiler breeze burner burnout protection system | |
| CN202075831U (en) | Automatic fire early warning system of wind power cabin | |
| CN104613782A (en) | Dust removal system with four sets of smelting furnaces | |
| CN207601599U (en) | A kind of transformer substation switch room intelligent environment control system | |
| CN200955056Y (en) | Blast-furnace coal-gas dry-method dust-control safety diffusion apparatus | |
| CN206527419U (en) | A kind of smoke abatement system of welding equipment | |
| CN219816600U (en) | Vertical coal mill system that security is high | |
| CN205690405U (en) | The anti-blocking device for discharging of refuse incineration exhaust-heating boiler | |
| CN213713095U (en) | Catalytic combustion exhaust treatment system with safety interlocking function | |
| CN204582361U (en) | The integrated automatic fire-fighting device of defeated coal dust pelletizing system | |
| CN214406000U (en) | Health monitoring equipment for wind and smoke system | |
| CN211486890U (en) | Bag dust collection circulation heating system of waste incineration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 414109 No. 58 Macheng Road, Macheng Town, Yueyang, Hunan Applicant after: YUEYANG HUAZHONG ELECTROMAGNET TECHNOLOGY CO., LTD. Address before: 414000 Macheng Road, Macheng Town, Yueyang, Hunan Applicant before: Yueyang Huazhong Electromagnet Technological Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: YUEYANG HUAZHONG ELECTROMAGENT TECHNOLOGICAL CO., LTD. TO: HUNAN HUAZHONGTIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |