CN2929612Y - Bag type dust removing system for drying device - Google Patents
Bag type dust removing system for drying device Download PDFInfo
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- CN2929612Y CN2929612Y CN 200520099754 CN200520099754U CN2929612Y CN 2929612 Y CN2929612 Y CN 2929612Y CN 200520099754 CN200520099754 CN 200520099754 CN 200520099754 U CN200520099754 U CN 200520099754U CN 2929612 Y CN2929612 Y CN 2929612Y
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Abstract
The utility model relates to a dust removal and environmental protection field, more particularly a bag typed dust removal system used for a drying device. The utility model comprises a dust absorption mask, a bag typed dust remover, a dust removal pipe which connects the dust absorption mask and the bag typed dust remover, and an air extractor, characterized in that a hot wind pipe is equipped from a hot wind oven to the dust removal pipe, a controlling pipe and a cold wind valve communicated with outer air are equipped on the pipe wall of the hot wind pipe and the dust removal pipe, and the hot wind oven and a hot wind valve communicated with the dust removal pipe are equipped inside the hot wind pipe. The utility model can adjust the dust removal working temperature which overcomes the negative effect of factors except the dust removal system on the dust removal system with a low investment, a high dust removal efficient, a stabilizing performing system, a low maintenance job and a low operation fee.
Description
Technical field
The utility model relates to the dedusting environment friendly field, especially a kind of bag-type dust removing system that is used for drying equipment.
Background technology
Used drying equipment in the modern industry in a large number, the part water in the moist material has been sloughed, the material water capacity is met the demands.The drying mode of at present industrial widespread is the rotating cylinder convective drying, and the medium that this convective drying is used generally is a hot-air, and hot-air comes from the hot-blast stove of drying machine front end.High-temperature gas passes drumdrier and the abundant contact heat-exchanging of moist material can continue to carry out smoothly in order to make dry run, and the moisture in the medium must in time be drained, and contain a large amount of dust and fully contact in the medium of being taken away the back with moist material this moment.If allow the flue gas that also has a large amount of dust directly enter atmosphere, then certainly will cause very big pollution to environment, must handle it.
Though wet method water deduster dust pelletizing system can be worked under than higher temperature, but have following deficiency: 1. cross when low when flue-gas temperature, the steam in the flue gas can dewfall be condensed into water, and cleaning shaft is easy to stop up, SR can be very big, and system's operation energy consumption is big.2. when cleaning shaft stops up, in order to allow system normally move, need frequent dredging pipeline, the system maintenance work amount is big.3. wet dedusting needs a large amount of water for industrial uses, for the area of China of water resource deficiency, particularly serious water shortage, is easy to be subjected to the restriction of insufficient water.If 4. temperature is low excessively in the winter time, water is easy to build-up ice, and system can not normally be moved.5. the sewage of wet dedusting and mud are easy to cause secondary pollution.6. the efficient of wet dedusting is not very high, though have can reach 97%, do not satisfy day by day the environmental requirement that improves.7. the dust after deduster is handled generally can not be recycled, and waste is big.
Effect is more satisfactory during high and more stable, the not dry flue gas of common dry-method bag-type dust collecting device dust pelletizing system treatment temperature, but treatment temperature instability, flue gas that water capacity is big seem very not enough.1. when flue-gas temperature was too high, cloth bag was easy to be burnt, if adopt the very filter bag of high-temperature of ability, then expense is too high, and is very uneconomical.2. cross when low when flue-gas temperature, the steam in the flue gas can dewfall be condensed into water, and cleaning shaft is easy to stop up, and SR can be very big, and system's operation energy consumption is big.3. it is low excessively to work as flue-gas temperature, when cleaning shaft stops up, in order to allow system normally move, needs frequent dredging pipeline, and the system maintenance work amount is big.4. cross when low when flue-gas temperature, the steam in the flue gas can dewfall be condensed into water in deduster, and ash-removal effect is very poor, and resistance is very big, and energy consumption is big, and efficiency of dust collection can reduce.5. cross when low when flue-gas temperature, the dust flowability of collection is very poor, is easy to harden in dust collector ash hopper, and it is difficult to unload ash.
How designing a cover reduced investment, efficiency of dust collection height, can overcome the new dust pelletizing system of many unfavorable factors to the dust pelletizing system influence again, is an important topic in drying equipment dedusting field.
The utility model content
The purpose of this utility model provides a kind of dust pelletizing system that is used for drying equipment, can overcome the adverse effect of dust pelletizing system factor in addition to dust pelletizing system.
In order to achieve the above object, the utility model is provided with the hot air duct that is inserted cleaning shaft by hot-blast stove, the cold blast sliding valve that the control pipeline is communicated with extraneous air is set respectively on the tube wall of hot air duct and cleaning shaft, the hot-blast valve that the control hot-blast stove is communicated with cleaning shaft is set in the hot air duct.
And, in the hot air duct, near dust shield place, sack cleaner porch, sack cleaner exit point for measuring temperature is set respectively in the cleaning shaft.
And point for measuring temperature adopts resistant to elevated temperatures temperature sensor.
And, automatic control equipment is set, the detection signal of point for measuring temperature inserts automatic control equipment, and the control signal of automatic control equipment connects cold blast sliding valve and hot-blast valve.
And automatic control equipment adopts programmable logic controller (PLC).
And each valve adopts can electronic butterfly valve that also can be manual.
The ingenious hot-blast stove that utilizes in the existing equipment of the utility model, design complete temperature control system, overcome the adverse effect of dust pelletizing system factor in addition to dust pelletizing system, as the hot-blast stove fume temperature too high or spend the end, few for a long time when being dried material in the drying equipment, even fracture etc., thereby cause outlet of drying machine afterbody and the fluctuation of deduster entrance flue gas temperature very big, too high or too low for temperature.And small investment, efficiency of dust collection height, system is stable, maintenance workload is little, operating cost is low.
Description of drawings
Fig. 1 is the utility model system construction drawing.
The specific embodiment
Referring to Fig. 1, the utility model provides a kind of bag-type dust removing system that is used for drying equipment, the cleaning shaft 2, the air exhauster 4 that comprise dust shield 1, sack cleaner 3, connection dust shield 1 and sack cleaner 3, it is characterized in that: the hot air duct 5 that is inserted cleaning shaft 2 by hot-blast stove B is set, cold blast sliding valve F1, F3 that the control pipeline is communicated with extraneous air are set respectively on the tube wall of hot air duct 5 and cleaning shaft 2, the hot-blast valve F2 that control hot-blast stove B is communicated with cleaning shaft 2 is set in the hot air duct 5.The operation principle of general sack cleaner 3 is, hot-blast stove B is distributed into drying machine C with hot-air under the effect of air blast A, the ash-laden gas that dried material produces enters sack cleaner via dust shield 1 and cleaning shaft 2, see through filter bag and be filtered into pure qi (oxygen), drain by blower fan again.And the utility model adds the hot air duct 5 that is inserted cleaning shaft 2 by hot-blast stove B, has then utilized existing drying equipment, heightens the dedusting operating temperature with the hot blast of hot-blast stove B.And the cold blast sliding valve F1, the F3 that are communicated with extraneous air can import cold air, turn down the dedusting operating temperature.
For the ease of grasping temperature and regulate temperature, in the hot air duct 5, near dust shield 1 place, sack cleaner 3 porch, sack cleaner 3 exits point for measuring temperature Ta, Tb, Tc, Td are set respectively in the cleaning shaft 2.This set can describe with the effect combination of each valve: cold blast sliding valve F1 is used for protecting hot air duct 5; when the hot blast temperature that records as point for measuring temperature Ta is too high; in order to protect hot air duct 5 and hot-blast valve F2, cold blast sliding valve F1 opens, and the aperture size is regulated according to Ta point temperature.The hot blast rate that hot-blast valve F2 is used for controlling, when drying machine C afterbody exit gas temperature Tb crosses when low, hot-blast valve F2 opens, and the aperture size is regulated according to Tc point temperature.Cold blast sliding valve F3 is used for controlling the cold blast rate of sneaking into, and when Tc point temperature was too high, cold blast sliding valve F3 opened, and the aperture size is regulated according to Tc point temperature.The utility model embodiment also is provided with blower fan valve F4 between the outlet of air exhauster 4 and pocket type dust catcher 3, be used for the total exhausting amount of control system, and the big I of air quantity is regulated blower fan valve F4 valve size and realized according to producing needs.The Tc point is used for monitoring the flue-gas temperature that enters deduster, and dust pelletizing system will be guaranteed Tc point temperature within the specific limits, can not too highly cause the deduster cloth bag to be burnt, and can not hang down excessively to cause smoke condensation in the deduster.The Td point is used for monitoring the temperature of deduster outlet clean gas, and this temperature requirement is more than dew-point temperature.In order to adapt to different situations, as long as temperature measurement data according to point for measuring temperature Ta, Tb, Tc, Td, just can operate cold blast sliding valve F1, F3, and hot-blast valve F2, in order to accurate adjusting dedusting operating temperature, that is: 1. when drying machine exit gas temperature not high not low yet, when satisfying sack cleaner 3 job requirements, promptly do not sneak into hot blast and do not sneak into cold wind yet; 2. cross when low when drying machine exit gas temperature, in order not allow line clogging and sack cleaner 3 dewfall, introduce hot blast and the drying machine exit gas mixes, improve the deduster flue-gas temperature from hot-blast stove B; 3. when drying machine exit gas temperature is too high,, from air, sneaks into cold wind and drying machine exit gas and mix, reduce the deduster inlet temperature in order to prevent that filter bag of dust collector from being burnt.
It can be hand that temperature control of the present utility model is regulated, and also can be self-action.If manual temperature control, point for measuring temperature Ta, Tb, Tc, Td can adopt simple thermometer, and cold blast sliding valve F1, F3 and hot-blast valve F2 adopt manual valve, then can be by artificial monitor temperature of staff and means switch valve.The temperature automatically controlled equipment that then needs to be equipped with automatic control function, corresponding, point for measuring temperature Ta, Tb, Tc, Td can adopt resistant to elevated temperatures temperature sensor, and cold blast sliding valve F1, F3 and hot-blast valve F2 adopt the valve of signal of telecommunication control.The utility model embodiment adopts can electronic butterfly valve that also can be manual.
In order to improve temperature adjustment efficient, the utility model embodiment is provided with automatic control equipment for temperature automatically controlled, the detection signal of point for measuring temperature Ta, Tb, Tc, Td inserts automatic control equipment, and the control signal of automatic control equipment connects cold blast sliding valve F1, F3 and hot-blast valve F2.Adopting automatic control equipment, directly carry out the temperature adjustment operation by the temperature data that collects, is a kind of very simple and effective scheme on the concrete commercial Application of dust pelletizing system.(Programmable Logic Controller PLC) has functions such as switching value processing, analog quantity processing and motion control to programmable logic controller (PLC), has replaced since the traditional relay control device, is widely used at automation field.PLC with storage actuating logic computing, sequential control, regularly, the instruction of operations such as counting and computing; And, control all kinds of machineries or production process by digital input and output operation.The utility model specific embodiment adopts PLC to realize automatic control equipment, the control program of user's establishment is expressed the temperature control requirement of dust removal process, and deposit in advance in the user program memory of PLC, carry out one by one by stored program content during operation, to finish the operation of temperature control requirement automatically.
During concrete application implementation, automatic control equipment is according to the temperature of each point and control the aperture size of each valve of dust pelletizing system according to the temperature control program that finish inside, can also programme is provided with other functions, for example goes wrong and can report to the police, and can handle according to program.Because concrete programming and the setting of PLC are knowledge that those skilled in the art grasp, the utility model only provides temperature automatically controlled requirement and corresponding operating as follows:
(1) the afterbody exit gas temperature Tb as drying machine C is not high not low yet, the danger that does not promptly have sack cleaner 3 used filter bags to be burnt, in the time of can not causing the dust pelletizing system dewfall yet, flue-gas temperature can satisfy the requirement of dust pelletizing system operate as normal, this moment cold blast sliding valve F1, hot-blast valve F2, cold blast sliding valve F3 complete shut-down, dusty gas is under the exhausting suction function of air exhauster 4, through dust shield 1, cleaning shaft 2 is inhaled into sack cleaner 3 and filters, clean gas after being filtered enters atmosphere through air exhauster 4 and chimney, exported through dust unloadnig apparatus and cinder conveyer by the dust that pocket type deduster 3 is collected, can be used as raw material and reclaim use.
(2) when the afterbody exit gas temperature Tb of drying machine C too high, cause sack cleaner 3 entrance flue gas temperature Tc also too high, filter bag has the danger of being burnt, cold blast sliding valve F3 opened and sneaked into cold wind this moment, the entrance flue gas temperature of sack cleaner 3 is reduced, and the aperture size of cold blast sliding valve F3 is regulated according to Tc point temperature.
(3) cross when low as the afterbody exit gas temperature Tb of drying machine C, the flue gas in cleaning shaft 2 and the sack cleaner 3 can dewfall, and system can not normally be moved, and this moment, hot-blast valve F2 opened, and the aperture size is regulated according to Tc point temperature.Open at hot-blast valve F2 and to sneak in the process of hot blast, if hot blast temperature is not too high, in the scope that hot air duct 5 and hot-blast valve F2 can bear, cold blast sliding valve F1 is in closed condition.If hot blast temperature is too high, exceeded the scope that hot air duct 5 and hot-blast valve F2 can bear, in order to protect hot air duct and hot-blast valve F2, cold blast sliding valve F1 opened and sneaked into cold wind this moment, and hot blast temperature is reduced, and cold blast sliding valve F1 aperture size is regulated according to Ta point temperature.
(4) when the afterbody exit gas temperature Tb of drying machine C sharply raises; as there not being improper situations such as material to take place in the drying machine C; this moment, sack cleaner 3 entrance flue gas temperature Tc also sharply raise; if cold blast sliding valve F3 full-gear can not make Tc be controlled in the scope of sack cleaner 3 energy operate as normal; this moment, automaton can send alarm signal; close air blast A and air exhauster valve F4 simultaneously, protection drying plant and sack cleaner.
The utility model point for measuring temperature Ta, Tb, Tc, Td totally 4 temperature sensor must ability certain high temperature, the particularly Ta temperature sensor of order owing to locate into hot air duct 5 the very high temperature of palpus ability.The cleaning shaft material can be made of the steel material of suitable material according to Tb and Tc point temperature conditions, and hot air duct must be made of material that can be high temperature resistant.Each valve material also necessary certain high temperature of ability, particularly cold blast sliding valve F1 and hot-blast valve F2 must the very high temperature of ability.Because flue-gas temperature and outer atmospheric temperature have certain temperature difference, gas temperature in process of flowing can reduce, and in order to reduce the influence of Yin Wendu reduction to system, cleaning shaft 2, hot air duct 5 before sack cleaner 3 and the inlet thereof will be incubated.
Claims (7)
1. bag-type dust removing system that is used for drying equipment, the cleaning shaft, the air exhauster that comprise dust shield, sack cleaner, connection dust shield and sack cleaner, it is characterized in that: the hot air duct that is inserted cleaning shaft by hot-blast stove is set, the cold blast sliding valve that the control pipeline is communicated with extraneous air is set respectively on the tube wall of hot air duct and cleaning shaft, the hot-blast valve that the control hot-blast stove is communicated with cleaning shaft is set in the hot air duct.
2. bag-type dust removing system as claimed in claim 1 is characterized in that: hot air duct is interior, cleaning shaft is interior is provided with point for measuring temperature respectively near dust shield place, sack cleaner porch, sack cleaner exit.
3. bag-type dust removing system as claimed in claim 2 is characterized in that: point for measuring temperature adopts resistant to elevated temperatures temperature sensor.
4. as claim 1 or 2 or 3 described bag-type dust removing systems, it is characterized in that: automatic control equipment is set, and the detection signal of point for measuring temperature inserts automatic control equipment, and the control signal of automatic control equipment connects cold blast sliding valve and hot-blast valve.
5. bag-type dust removing system as claimed in claim 4 is characterized in that: automatic control equipment adopts programmable logic controller (PLC).
6. as claim 1 or 2 or 3 or 5 described bag-type dust removing systems, it is characterized in that: each valve adopts can electronic butterfly valve that also can be manual.
7. bag-type dust removing system as claimed in claim 4 is characterized in that: each valve adopts can electronic butterfly valve that also can be manual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520099754 CN2929612Y (en) | 2005-12-30 | 2005-12-30 | Bag type dust removing system for drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520099754 CN2929612Y (en) | 2005-12-30 | 2005-12-30 | Bag type dust removing system for drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929612Y true CN2929612Y (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520099754 Expired - Fee Related CN2929612Y (en) | 2005-12-30 | 2005-12-30 | Bag type dust removing system for drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929612Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780357A (en) * | 2010-03-05 | 2010-07-21 | 中冶焦耐(大连)工程技术有限公司 | Technique and device for dry dedusting of wet dust-laden gas |
| CN102371099A (en) * | 2011-10-20 | 2012-03-14 | 无锡市西漳环保设备有限公司 | Offline pulse back-blowing and ash-cleaning automatic control system |
| CN103159212A (en) * | 2013-02-21 | 2013-06-19 | 江苏浦士达环保科技有限公司 | Dedusting system in production of activated carbon |
| CN103817286A (en) * | 2014-01-24 | 2014-05-28 | 浙江红马铸造有限公司 | Spiral conveyor structure of sand mixer |
| CN103940083A (en) * | 2014-03-24 | 2014-07-23 | 湖北工业大学 | Heat exchange type hot-blast stove with flue gas recirculation device |
| CN105841476A (en) * | 2016-05-18 | 2016-08-10 | 山东省临沂科威机械有限公司 | Hot-air exhaust dust remover of drying system |
| CN108568174A (en) * | 2017-03-07 | 2018-09-25 | 鸡西市星光热风炉制造有限公司 | Bag filter anti-condensation automatic control device |
-
2005
- 2005-12-30 CN CN 200520099754 patent/CN2929612Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780357A (en) * | 2010-03-05 | 2010-07-21 | 中冶焦耐(大连)工程技术有限公司 | Technique and device for dry dedusting of wet dust-laden gas |
| CN102371099A (en) * | 2011-10-20 | 2012-03-14 | 无锡市西漳环保设备有限公司 | Offline pulse back-blowing and ash-cleaning automatic control system |
| CN103159212A (en) * | 2013-02-21 | 2013-06-19 | 江苏浦士达环保科技有限公司 | Dedusting system in production of activated carbon |
| CN103159212B (en) * | 2013-02-21 | 2016-03-23 | 江苏浦士达环保科技股份有限公司 | Dust-removal system in a kind of Activated Carbon Production |
| CN103817286A (en) * | 2014-01-24 | 2014-05-28 | 浙江红马铸造有限公司 | Spiral conveyor structure of sand mixer |
| CN103817286B (en) * | 2014-01-24 | 2015-11-25 | 浙江红马铸造有限公司 | Stirring cage of sand mixer structure |
| CN103940083A (en) * | 2014-03-24 | 2014-07-23 | 湖北工业大学 | Heat exchange type hot-blast stove with flue gas recirculation device |
| CN103940083B (en) * | 2014-03-24 | 2016-06-08 | 湖北工业大学 | A kind of heat exchange type hotblast stove with smoke circulating device |
| CN105841476A (en) * | 2016-05-18 | 2016-08-10 | 山东省临沂科威机械有限公司 | Hot-air exhaust dust remover of drying system |
| CN108568174A (en) * | 2017-03-07 | 2018-09-25 | 鸡西市星光热风炉制造有限公司 | Bag filter anti-condensation automatic control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN HONGCHUANG ENVIRONMENTAL PROTECTION TECHNOLO Free format text: FORMER OWNER: KINGHOME ENVIRONMENT TECHNOLOGIES (CHINA) LTD. Effective date: 20110124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430062 1603, TOWER B, KAIXUANMEN PLAZA, NO. 7, XUDONG STREET, WUCHANG, WUHAN CITY, HUBEI PROVINCE TO: 430061 A1503, 2008 NEW YANGTZE RIVER PLAZA, NO. 2, YOUYI AVENUE, WUCHANG DISTRICT, WUHAN CITY, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110124 Address after: 430061, 2008 New Friendship Plaza, No. 2 Youyi Avenue, Wuchang District, Hubei, Wuhan A1503 Patentee after: Wuhan Hongchuang Environmental Protection Technology Co., Ltd. Address before: 430062, B, block 1603, Triumphal Arch square, 7 East Avenue, Wuchang, Hubei, Wuhan Patentee before: Wuhan Jinghong Environmental Protection Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: WUHAN KINGHOME ENVIRONMENTAL TECHNOLOGIES CO., LTD Free format text: FORMER NAME: WUHAN HONGCHUANG ENVIRONMENT PROTECTION CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 430061, 2008 New Friendship Plaza, No. 2 Youyi Avenue, Wuchang District, Hubei, Wuhan A1501 Patentee after: Kinghome Environmental Technologies Co., Ltd. Address before: 430061, 2008 New Friendship Plaza, No. 2 Youyi Avenue, Wuchang District, Hubei, Wuhan A1503 Patentee before: Wuhan Hongchuang Environmental Protection Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |