CN203417547U - Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases - Google Patents
Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases Download PDFInfo
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- CN203417547U CN203417547U CN201320400769.3U CN201320400769U CN203417547U CN 203417547 U CN203417547 U CN 203417547U CN 201320400769 U CN201320400769 U CN 201320400769U CN 203417547 U CN203417547 U CN 203417547U
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Abstract
The utility model discloses a bag type dust collector capable of realizing compartment reverse blowing with purified flue gases. The bag type dust collector comprises a dust and gas chamber, a gas purification chamber, an inlet horn and an outlet horn, wherein a filter bag is arranged inside each compartment of the dust and gas chamber; a dust cleaning device is arranged above each compartment and comprises a rotating mechanism, and the cylindrical rotating mechanisms are installed on a top plate of the gas purification chamber; air inlets of elbow pipes located inside the gas purification chamber are connected with corresponding air outlets of a reverse air blowing pipeline through the rotating mechanisms, the air inlets of the elbow pipes are fixedly connected with the rotating mechanisms, the air outlets of the reverse air blowing pipeline are movably connected with the rotating mechanisms, and air outlets of the elbow pipes are arranged corresponding to low-resistance annular air cylinders on top ceiling beams of the compartments of the dust and gas chamber; rotating components of the rotating mechanisms are connected with output shafts of electric heads; angle sensors are installed on the electric heads; and the electric heads and the angle sensors are connected with controllers. According to the dust collector, a low-pressure dynamic long-air-stream dust cleaning principle is adopted, and the purified flue gases are used for achieving the compartment reverse blowing and dust cleaning purpose, so that the dust cleaning effect is good.
Description
Technical field
The utility model relates to a kind of clean flue gas branch chamber back-blowing bag type dust collector, specifically, relates to a kind of utilization and purifies the sack cleaner that rear flue gas carries out chamber-dividing counter-blowing deashing.
Background technology
At present, sack cleaner is widely used in the industries such as power plant, metallurgy, chemical industry, mine, cement.The operation principle of sack cleaner is: under the suction function of air-introduced machine, dusty gas enters dirt air chamber from import loudspeaker, when by filter bag, grit is delayed on filter bag outer surface, form dust layer, via the gas filtering, enter air-purifying chamber, by outlet loudspeaker discharged to atmosphere.Along with the prolongation of time, the thickness of dust layer is thickening gradually, and dedusting resistance increases gradually, so need to carry out deashing to deduster.
At present, the purge mode of sack cleaner mainly contains pulse jetting deashing and two kinds of modes of the reverse deashing of air-flow.It is with the pressure-air of the 0.2-0.3MPa filter bag of jetting at a high speed that purge mode is rushed in pulse spray, make filter bag produce from inside to outside pulse expansion vibration, make filter bag outer surface obtain very large acceleration, thereby shake off the dust layer of filter bag outer surface, the ash-removal effect of this purge mode is fine, but shortens too greatly because of deashing air pressure the service life of filter bag.The reverse purge mode of air-flow is main mainly with locellus back draught deashing, in order to reduce backflowing gas amount, a deduster is divided into a plurality of locellus, during deashing, valve closing dirt air chamber exports, and opens the entrance of blowback air-flow, and blowback air is flow to into filter bag, from filter bag inside, blow to filter bag outer surface, the dust layer of filter bag outer surface is come off, and the deashing air pressure of this purge mode is very low, is less than 0.003MPa, so the service life of filter bag is longer, but valve is complicated, manufacturing cost is also higher, the easy initiating failure of valve seal problem, and maintenance difficulty.
In addition, what between the filter bag of existing back-blowing bag-type dust collector and bag cage, adopt is the mode of closely cooperating, and filter bag is almost close on bag cage, and after long-time reverse gas cleaning, filter bag can be fastened on a bag cage surface, and dismounting is very difficult, haves much room for improvement.
Utility model content
The purpose of this utility model is to provide a kind of clean flue gas branch chamber back-blowing bag type dust collector, and this clean flue gas branch chamber back-blowing bag type dust collector adopts dynamically long air-flow deashing principle of low pressure, utilizes and purifies the object that rear flue gas has been realized chamber-dividing counter-blowing deashing, and ash-removal effect is good.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of clean flue gas branch chamber back-blowing bag type dust collector, it comprises the dirt air chamber that is separated into a plurality of locellus, one side of this dirt air chamber is provided with import loudspeaker, each this minute indoor filter bag that is provided with, be located at the below that bag this filter bag of cage outside is fixed on card, this card is fixed on the below of the card beam at this dirt air chamber top, above this dirt air chamber, be provided with air-purifying chamber, one side of this air-purifying chamber is provided with outlet loudspeaker, it is characterized in that: the top of each this locellus is provided with deashing device, wherein: this deashing device comprises bend pipe, electrical header, controller, angular transducer, rotating mechanism, tubular this rotating mechanism is arranged on the top board of this air-purifying chamber, the air inlet of this bend pipe in this air-purifying chamber is connected with the corresponding air outlet of back-blowing pipeline via this rotating mechanism, the air inlet of this bend pipe is fixedly connected with this rotating mechanism, this rotating mechanism is used for driving this bend pipe to rotate, this air outlet of this back-blowing pipeline is flexibly connected with this rotating mechanism, the air outlet of this bend pipe and the corresponding setting of low-resistance annular air duct being arranged on this card beam at this locellus top of this dirt air chamber, the part not sheltered from by this low-resistance annular air duct on this card beam is covered by cover plate, the rotatable parts of this rotating mechanism are connected with the output shaft of this electrical header, this angular transducer is arranged on this electrical header, this electrical header, the signal transmission control port of this angular transducer is connected with the corresponding signal control port of this controller respectively.
The air inlet place of described back-blowing pipeline is provided with back-blowing adjustable valve.
Described low-resistance annular air duct comprises annular slab, protruding upwardly on this annular slab offers a plurality of fresh air inlets, and the transition portion that this fresh air inlet and this annular slab join is circular arc, the corresponding arc deflector that is provided with below this transition portion of circular arc.
The top of described filter bag and described card are fixed, and described in each, the bottom of filter bag is connected to each other together by hook, and this hook is fastening fixing via steel wire and described filter bag, and the gap between described filter bag and described bag cage is 35mm-55mm.
Described air-purifying chamber is provided with flue gas displacement apparatus, this flue gas displacement apparatus comprises flue gas displacement pipeline, the air inlet of this flue gas displacement pipeline is connected with the opening of offering on described outlet loudspeaker, the air outlet of this flue gas displacement pipeline is connected with the air inlet of flue gas displacement blower fan, and the air inlet place of this flue gas displacement pipeline is provided with flue gas displacement valve.
The utility model has the advantages that:
The clean flue gas branch chamber back-blowing bag type dust collector of the utility model adopts dynamically long air-flow deashing principle of low pressure, utilizes and purifies the object that rear flue gas has been realized chamber-dividing counter-blowing deashing, and ash-removal effect is good, and electrical control is not loaded down with trivial details, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is composition schematic diagram of the present utility model.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is the structure enlarged diagram of deashing device of the present utility model.
Fig. 4 overlooks and looks from Fig. 3, the low-resistance annular air duct in deashing device and the structural representation of cover plate.
Fig. 5 is filter bag bottom and the schematic diagram that is fixedly connected with of hook, steel wire.
Fig. 6 is the enlarged diagram of flue gas displacement apparatus in Fig. 1.
Fig. 7 is the schematic top plan view of Fig. 6.
The specific embodiment
As shown in Figure 1 to Figure 4, the clean flue gas branch chamber back-blowing bag type dust collector of the utility model comprises the dirt air chamber 20 that is separated into a plurality of locellus 21, one side of this dirt air chamber 20 is provided with import loudspeaker 10, in each this locellus 21, be provided with filter bag 40, be located at the below (the fixed race known technologies that filter bag 40 and card are 22) that bag this filter bag 40 of cage (not shown) outside is fixed on card 22, this card 22 is fixed on the below of the card beam 23 at these dirt air chamber 20 tops, below this dirt air chamber 20, corresponding each this locellus 21 is provided with ash bucket 90, above this dirt air chamber 20, be provided with air-purifying chamber 30, one side of this air-purifying chamber 30 is provided with outlet loudspeaker 80, as Fig. 3, the top of each this locellus 21 is provided with deashing device 50, wherein: this deashing device 50 comprises bend pipe 56, electrical header 52, controller 51, angular transducer 53, rotating mechanism 55, tubular this rotating mechanism 55 is arranged on the top board of this air-purifying chamber 30, the air inlet of this bend pipe 56 in this air-purifying chamber 30 is connected with the corresponding air outlet of back-blowing pipeline 60 via this rotating mechanism 55, the air inlet of this bend pipe 56 is fixedly connected with this rotating mechanism 55, this rotating mechanism 55 is for driving this bend pipe 56 to rotate, this air outlet of this back-blowing pipeline 60 is flexibly connected with this rotating mechanism 55, this rotating mechanism 55 does not drive back-blowing pipeline 60 to rotate, air inlet and the air-introduced machine of this back-blowing pipeline 60 are (not shown, air-introduced machine does not belong to the parts of the utility model deduster) air outlet connect, this outlet loudspeaker 80 is connected with the air inlet of this air-introduced machine via pipeline, the air outlet of this bend pipe 56 and the corresponding setting of low-resistance annular air duct 57 being arranged on this card beam 23 at these locellus 21 tops of this dirt air chamber 20, the part not sheltered from by this low-resistance annular air duct 57 on this card beam 23 covers (as Fig. 4) by cover plate 24, so that air-flow can only from low-resistance annular air duct 57 by and can not be via card, other parts from card beam 23 outside low-resistance annular air duct 57 are by (be gas communication passage be only the fresh air inlet 571 of the annular air duct 57 of low-resistance) between air-purifying chamber 30 and dirt air chamber 20, the rotatable parts of this rotating mechanism 55 are connected with the output shaft of this electrical header 52, this angular transducer 53 is arranged on this electrical header 52, rotational angle for detection of the output shaft 54 of electrical header 52, this electrical header 52, the signal transmission control port of this angular transducer 53 is connected with the corresponding signal control port of this controller 51 respectively, in actual applications, controller 51 is controlled the rotation of electrical header 52, the rotation driven rotary mechanism 55 of the output shaft 54 of electrical header 52 rotates, angular transducer 53 detects the rotational angle of the output shaft 54 of electrical header 52 simultaneously, and rotating mechanism 55 drives bend pipe 56 to rotate, make the air outlet of bend pipe 56 along circular motion, and back-blowing pipeline 60 does not rotate.
Deduster is provided with 3 locellus 21 as shown in fig. 1, each locellus 21 top is equipped with a deashing device 50, therefore correspondingly, back-blowing pipeline 60 has 1 air inlet, 3 air outlets, and the air inlet of the bend pipe 56 of each deashing device 50 is connected via the rotating mechanism 55 of this deashing device 50 and a corresponding air outlet of back-blowing pipeline 60.
As Fig. 1, the air inlet place of back-blowing pipeline 60 can be provided with back-blowing adjustable valve 61, and this back-blowing adjustable valve 61 can be manual control mode or automatically controlled mode.
In actual design, the corresponding signal control port of each controller 51 can be connected with the corresponding controling end mouth of master controller (not shown) respectively, controlled by the unified of master controller.
As Fig. 3 and Fig. 4, low-resistance annular air duct 57 comprises annular slab 573, protruding upwardly on this annular slab 573 offer a plurality of fresh air inlets 571, in the process of rotating at bend pipe 56, the air outlet of bend pipe 56 can be relative with each fresh air inlet 571, as Fig. 4, a plurality of fresh air inlets 571 of offering are circumferential arrangement, this fresh air inlet 571 is circular arc with the transition portion 572 that this annular slab 573 joins, as shown in Figure 3, the circular arc design of transition portion can be so that air-flow becomes soft, reduce resistance, in addition, the corresponding arc deflector 58 that is provided with below this transition portion 572 of circular arc, so that distribution of air flow obtains is more reasonable, resistance is less, as Fig. 3, in this arc deflector 58 space in card beam 23.
As Fig. 1 and Fig. 5, the card 22 at the top of filter bag 40 and dirt air chamber 20 tops is fixing, the bottom of each filter bag 40 is connected to each other together by linking up with 41, realized filter bag 40 fixing below the card 22 at these dirt air chamber 20 tops, and, this hook 41 is fastening fixing via steel wire 42 and filter bag 40, the fastening fixedly design of hook 41 and steel wire 42 can make the gap between each filter bag 40 keep immobilizing, and, compare with the fixture on existing deduster, the fastening fixedly design of hook 41 and steel wire 42 has alleviated weight, and easy accessibility.In actual design, gap between filter bag 40 and bag cage is 35mm-55mm, filter bag dilatancy surplus when such matched in clearance design had both guaranteed reverse gas cleaning, while having avoided reverse gas cleaning again, filter bag dilatancy is excessive bumps and reduces ash-removal effect with its side filter bag.
As Fig. 6 and Fig. 7, on air-purifying chamber 30 of the present utility model, also can be provided with flue gas displacement apparatus 70, this flue gas displacement apparatus 70 comprises flue gas displacement pipeline 72, the air inlet of this flue gas displacement pipeline 72 is connected with the opening of offering on outlet loudspeaker 80, the air outlet of this flue gas displacement pipeline 72 is connected with the air inlet of flue gas displacement blower fan 71, the signal transmission control port of this flue gas displacement blower fan 71 can be connected with the corresponding controling end mouth of this master controller, the air inlet place of this flue gas displacement pipeline 72 is provided with flue gas displacement valve 73, flue gas displacement valve 73 can be manual control mode or automatically controlled mode.
In the utility model, also can be provided with input keyboard (not shown), the signal port of this input keyboard can be connected with the corresponding controling end mouth of master controller.On input keyboard, can be provided with off-position data setting knob for deashing point position is set, for the dwell time of the deashing point time of staying is set, set button, for bend pipe 56 being carried out to 0 correction button of 0 calibration, for the manual debugging button of manual debugging bend pipe rotation process and fault stop button etc.
In the utility model, dirt air chamber 20, filter bag 40, card 22, card beam 23, bag cage, air-purifying chamber 30, ash bucket 90 etc. are deduster field and know product, what controller 51, electrical header 52, angular transducer 53, rotating mechanism 55, arc deflector 58, flue gas displacement blower fan 71 etc. were this area knows product or technology, thus its concrete form here describe in detail.
The course of work of the present utility model is:
When needs dedusting, open air-introduced machine, under the effect of air-introduced machine negative pressure, dusty gas enters from import loudspeaker 10, via the filter bag 40 in each locellus 21 of dirt air chamber 20, filter, grit is delayed on the outer surface of filter bag 40, forms dust layer, the gas filtering enters air-purifying chamber 30 via the fresh air inlet 571 on low-resistance annular air duct 57, then from outlet loudspeaker 80 discharged to atmosphere.The gas of discharging from outlet loudspeaker 80 is called as clean flue gas the utility model.
When needs carry out deashing to the utility model deduster, for example, because dust layer is blocked up, when the pressure reduction of the utility model deduster reaches setting threshold, can start to carry out deashing operation, be specially:
Open back-blowing adjustable valve 61 adjusted, control the air quantity that the clean flue gas of exporting from the air outlet of air-introduced machine enters back-blowing pipeline 60, meanwhile, by the control of master controller, make each locellus 21 carry out one by one deashing operation.The locellus 21 of take below describes as example.
It should be noted that, when locellus is carried out to deashing operation, dedusting operation is carried out simultaneously, and deashing operation and dedusting operation are independent of each other.When a deashing point is carried out to deashing, deashing device 50 is put corresponding fresh air inlet 571 by this deashing, make air-flow flow from the top down to carry out deashing operation, and all the other fresh air inlets 571 are still for making the gas filtering enter from bottom to top air-purifying chamber 30 via them.
It should be noted that, what the utility model adopted is the mode of deashing of dynamically each locellus 21 being carried out, and the mode of this dynamic deashing can significantly improve ash-removal effect, can realize locellus filter bag is everywhere carried out to omnibearing deashing.In the utility model, the air-flow of deashing is not wink blowing gas stream, but the soft long air-flow of air-flow, different from the air-flow that existing purge mode adopts, this long air-flow can to filter bag up and down the dust layer of each position carry out deashing, there is not cleaning dead angle, effectively improved ash-removal effect, and can not produce damage to filter bag.
Deashing air pressure of the present utility model is very low, is 3000-5000Pa, contributes to extend the service life of filter bag.
The utility model takes full advantage of the flue gas after purification, and the flue gas after purifying by use can be realized deashing object, compares with existing purge mode, does not need to use air, thereby has reduced the setting of Air Compressor Equipment, has reduced equipment cost.
When air-introduced machine breaks down, can open flue gas displacement valve 73, open flue gas displacement blower fan 71, the hot flue gas of the utility model deduster dirt air chamber 20, air-purifying chamber 30 inside is extracted out via outlet loudspeaker 80, by flue gas, replacing the air outlet of blower fan 71 discharges, thereby reduce the generation of situation such as harden of air-introduced machine dewing corrosion, filter bag, extend service life of the present utility model.
The utility model has the advantages that: the clean flue gas branch chamber back-blowing bag type dust collector of the utility model adopts dynamically long air-flow deashing principle of low pressure, utilize and purify the object that rear flue gas has been realized chamber-dividing counter-blowing deashing, ash-removal effect is good, and electrical control is not loaded down with trivial details, low cost of manufacture.
The above is preferred embodiment of the present utility model and the know-why used thereof; for a person skilled in the art; in the situation that not deviating from spirit and scope of the present utility model; the apparent changes such as any equivalent transformation based on technical solutions of the utility model basis, simple replacement, within all belonging to the utility model protection domain.
Claims (5)
1. a clean flue gas branch chamber back-blowing bag type dust collector, it comprises the dirt air chamber that is separated into a plurality of locellus, one side of this dirt air chamber is provided with import loudspeaker, each this minute indoor filter bag that is provided with, be located at the below that bag this filter bag of cage outside is fixed on card, this card is fixed on the below of the card beam at this dirt air chamber top, above this dirt air chamber, be provided with air-purifying chamber, one side of this air-purifying chamber is provided with outlet loudspeaker, it is characterized in that: the top of each this locellus is provided with deashing device, wherein: this deashing device comprises bend pipe, electrical header, controller, angular transducer, rotating mechanism, tubular this rotating mechanism is arranged on the top board of this air-purifying chamber, the air inlet of this bend pipe in this air-purifying chamber is connected with the corresponding air outlet of back-blowing pipeline via this rotating mechanism, the air inlet of this bend pipe is fixedly connected with this rotating mechanism, this rotating mechanism is used for driving this bend pipe to rotate, this air outlet of this back-blowing pipeline is flexibly connected with this rotating mechanism, the air outlet of this bend pipe and the corresponding setting of low-resistance annular air duct being arranged on this card beam at this locellus top of this dirt air chamber, the part not sheltered from by this low-resistance annular air duct on this card beam is covered by cover plate, the rotatable parts of this rotating mechanism are connected with the output shaft of this electrical header, this angular transducer is arranged on this electrical header, this electrical header, the signal transmission control port of this angular transducer is connected with the corresponding signal control port of this controller respectively.
2. clean flue gas branch chamber back-blowing bag type dust collector as claimed in claim 1, is characterized in that:
The air inlet place of described back-blowing pipeline is provided with back-blowing adjustable valve.
3. clean flue gas branch chamber back-blowing bag type dust collector as claimed in claim 1, is characterized in that:
Described low-resistance annular air duct comprises annular slab, protruding upwardly on this annular slab offers a plurality of fresh air inlets, and the transition portion that this fresh air inlet and this annular slab join is circular arc, the corresponding arc deflector that is provided with below this transition portion of circular arc.
4. clean flue gas branch chamber back-blowing bag type dust collector as claimed any one in claims 1 to 3, is characterized in that:
The top of described filter bag and described card are fixed, and described in each, the bottom of filter bag is connected to each other together by hook, and this hook is fastening fixing via steel wire and described filter bag, and the gap between described filter bag and described bag cage is 35mm-55mm.
5. clean flue gas branch chamber back-blowing bag type dust collector as claimed any one in claims 1 to 3, is characterized in that:
Described air-purifying chamber is provided with flue gas displacement apparatus, this flue gas displacement apparatus comprises flue gas displacement pipeline, the air inlet of this flue gas displacement pipeline is connected with the opening of offering on described outlet loudspeaker, the air outlet of this flue gas displacement pipeline is connected with the air inlet of flue gas displacement blower fan, and the air inlet place of this flue gas displacement pipeline is provided with flue gas displacement valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400769.3U CN203417547U (en) | 2013-07-05 | 2013-07-05 | Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320400769.3U CN203417547U (en) | 2013-07-05 | 2013-07-05 | Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203417547U true CN203417547U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320400769.3U Withdrawn - After Issue CN203417547U (en) | 2013-07-05 | 2013-07-05 | Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases |
Country Status (1)
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| CN (1) | CN203417547U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977641A (en) * | 2014-04-21 | 2014-08-13 | 北京博智伟德环保科技有限公司 | Chambered blowback pressure-adjustable bag-type dust collector |
| CN104275051A (en) * | 2013-07-05 | 2015-01-14 | 山川秀美生态环境工程有限公司 | Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases |
| CN108367226A (en) * | 2015-12-18 | 2018-08-03 | 三菱日立电力系统株式会社 | Filter back washing device, coal tar retracting device and filtering back-washing method, integrated gasification combined cycle plant |
-
2013
- 2013-07-05 CN CN201320400769.3U patent/CN203417547U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275051A (en) * | 2013-07-05 | 2015-01-14 | 山川秀美生态环境工程有限公司 | Bag type dust collector capable of realizing compartment reverse blowing with purified flue gases |
| CN104275051B (en) * | 2013-07-05 | 2016-04-27 | 山川秀美生态环境工程股份有限公司 | Neat stress branch chamber back-blowing bag type dust collector |
| CN103977641A (en) * | 2014-04-21 | 2014-08-13 | 北京博智伟德环保科技有限公司 | Chambered blowback pressure-adjustable bag-type dust collector |
| CN103977641B (en) * | 2014-04-21 | 2016-04-27 | 北京博智伟德环保科技有限公司 | A kind of chamber-dividing counter-blowing adjustable-pressure sack cleaner |
| CN108367226A (en) * | 2015-12-18 | 2018-08-03 | 三菱日立电力系统株式会社 | Filter back washing device, coal tar retracting device and filtering back-washing method, integrated gasification combined cycle plant |
| US11103823B2 (en) | 2015-12-18 | 2021-08-31 | Mitsubishi Power, Ltd. | Filter backwashing unit, char recovery unit, method of filter backwashing, and integrated gasification combined cycle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 102209, Beijing, Beiqijia town of Changping District Tuan Tuan Village Patentee after: Shanchun Xiumei Ecological Environmental Engineering Co., Ltd. Address before: 100005, 3, 908-909, Henderson Center office building, No. 18 Jianguomen inner main street, Beijing, Dongcheng District Patentee before: SHANCHUANXIUMEI ECOLOGICAL ENVIRONMENTAL ENGINEERING CO., LTD. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140205 Effective date of abandoning: 20160427 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |