CN202516516U - Dedusting system of asphalt mixing equipment - Google Patents
Dedusting system of asphalt mixing equipment Download PDFInfo
- Publication number
- CN202516516U CN202516516U CN 201220064923 CN201220064923U CN202516516U CN 202516516 U CN202516516 U CN 202516516U CN 201220064923 CN201220064923 CN 201220064923 CN 201220064923 U CN201220064923 U CN 201220064923U CN 202516516 U CN202516516 U CN 202516516U
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- asphalt mixing
- mixing plant
- sack cleaner
- dust pelletizing
- pelletizing system
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Abstract
The utility model provides a dedusting system of asphalt mixing equipment, which is characterized in that the dedusting system comprises a first stage flue, a gravity dust collector, a flow dividing device, a bag dust collector, a second stage flue, an air door, an induced draft fan and a chimney which are communicated in sequence, wherein flue gas exhausted by a drying system of the asphalt mixing equipment enters the gravity dust collector through the first stage flue; after being sequentially filtered by the gravity dust collector and the bag dust collector, clean gas entering the second stage flue passes through the air door of the induced draft fan and then enters the chimney; and the gravity dust collector is communicated with the bag dust collector through the flow dividing device capable of enabling the glue gas to be evenly distributed in the bag dust collector. By adopting the dedusting system provided by the utility model, problems in the prior art are effectively solved; and through additionally arranging the flow dividing device, the flue gas can be guaranteed to be evenly distributed in the bag dust collector while being sent into the bag dust collector by the gravity dust collector, so that the consistency of the work frequency of bags in each area of the bag dust collector is guaranteed, the work efficiency is high, shutdown times of the equipment is reduced and continuous production of the asphalt mixing equipment is guaranteed.
Description
Technical field
The utility model relates to the mixing plant field, particularly the powder dust pelletizing system on the asphalt mixing plant.
Background technology
Existing asphalt mixing plant all requires to be furnished with dust pelletizing system; Because in process of production owing to can produce various waste gas in aggregate dust-laden and the combustion process; These waste gas not only can influence the building site environment, influence burning quality like directly outside discharging, impact more can for the growth of building site farm-forestry crop on every side and resident's living environment.Can therefore, the dust removing effects of dust pelletizing system directly influences the performance of this asphalt mixing plant, and the environmental requirement that reach national regulation.
Dust pelletizing system on the asphalt mixing plant generally adopts two-layer configuration at present, and promptly one-level gravitational dust collection and secondary sack cleaner combine, and wherein sack cleaner adopts organic fiber or inorfil tissue substance to make filter bag usually.But operating frequency and the work of the cloth bag of sack cleaner in each area segments can not reach effective uniformity, and the cloth bag work in the zone that has is too frequent, fragile, and then operating efficiency is not good for the cloth bag in the zone that has.Cause that efficiency of dust collection is not high, system's leakiness ash, stop machine often, influence the continuous production of asphalt mixing plant.
The utility model content
In order to address the above problem; The utility model provides a kind of dust pelletizing system of asphalt mixing plant; It is characterized in that: comprise the one-level flue, gravitational precipitator, part flow arrangement, sack cleaner, secondary flue, air door, air-introduced machine and the chimney that are communicated with successively; The flue gas that the drying system of asphalt mixing plant is discharged gets into gravitational precipitator through the one-level flue; Clean gas by gravitational precipitator, sack cleaner filter in the entering light breeze road, back is successively sent into chimney behind the air-introduced machine ventilation door, said gravitational precipitator is communicated with sack cleaner through making the part flow arrangement of flue gas even distribution in sack cleaner.
Further, said one-level flue is provided with cold blast sliding valve and the temperature sensor that interlock is used.
Further, said sack cleaner is an atmosphere back flushing type sack cleaner, is provided with Differential Pressure Unit between its inlet and the outlet.
Further, the air inlet of said part flow arrangement is connected with the air outlet of gravitational precipitator, and the air outlet of part flow arrangement is connected with sack cleaner, and this air outlet is located on the position of flue gas even distribution in sack cleaner that can make in the part flow arrangement.
Further, said gravitational precipitator, sack cleaner, part flow arrangement adopt the modular combining structure.
Further; The gravitational precipitator of said asphalt mixing plant dust pelletizing system is provided with first carrier pipe that is communicated with the aggregate elevator structure of asphalt mixing plant; To send in the aggregate elevator structure by the fine sand material that gravitational precipitator filters out, and get into again and stir in the main building.
Further, the sack cleaner of said asphalt mixing plant dust pelletizing system is provided with second carrier pipe that is communicated with the powder feed system of asphalt mixing plant, will send into the powder feed system by the dust that sack cleaner filters out.
Further; Said asphalt mixing plant dust pelletizing system is provided with the negative-pressure pipeline that is communicated with the main building of asphalt mixing plant, sends in the dust pelletizing system after main building internal cause aggregate elevator structure sheds, sieves, carries the dust that raises up of the raise up dust and the generations such as the weighing of powder feed system, conveying powder of generations such as aggregate to collect by the main building negative-pressure pipeline stirring.
Further, said negative-pressure pipeline one end is connected with the one-level flue, and the other end is connected with the main building of asphalt mixing plant, and the dust that raises up in the main building is sent in the one-level flue, gets into gravitational precipitator, sack cleaner dust removal by filtration more successively.
Further, institute's negative-pressure pipeline one end is connected with part flow arrangement, and the other end is connected with the main building of asphalt mixing plant, and the dust that raises up in the main building is sent in the part flow arrangement, gets into dust removal by filtration in the sack cleaner again.
The utlity model has following beneficial effect:
The asphalt mixing plant dust pelletizing system that provides according to the utility model; Efficiently solve cloth bag operating frequency and the not equal problem of work in each zone of sack cleaner; Through the part flow arrangement of between one-level gravitational precipitator and secondary sack cleaner, setting up; Make gravitational precipitator guarantee that when sack cleaner is sent into flue gas flue gas can be uniformly distributed in the sack cleaner; Guarantee the shutdown number of times of the interior cloth bag operating frequency unanimity in each zone of sack cleaner, high efficiency, reduction equipment, ensure the continuous production of asphalt mixing plant.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Fig. 1 is the sketch map of the dust pelletizing system of specific embodiment one asphalt mixing plant.
Fig. 2 is the sketch map of the dust pelletizing system of specific embodiment two asphalt mixing plants.
The specific embodiment
In order better to understand the technical scheme of the utility model, two kinds of specific embodiment are provided, describe two kinds of embodiment that utility model provides in detail below in conjunction with accompanying drawing.
Specific embodiment one: with reference to shown in Figure 1; A kind of asphalt mixing plant comprises stirring main building 1, dust pelletizing system 2, drying system 3, aggregate elevator structure 4, powder feed system 5; This dust pelletizing system 2 comprises successively one-level flue 200, gravitational precipitator 210, part flow arrangement 220, sack cleaner 230, secondary flue 240, air door 250, air-introduced machine 260, the chimney 270 that is communicated with, and also comprises first carrier pipe 281, second carrier pipe 282 and negative-pressure pipeline 291.
One-level flue 200 is provided with the cold blast sliding valve 201 and temperature sensor 202 that interlock is used.
The air inlet of part flow arrangement 220 is connected with the air outlet of gravitational precipitator 210, and the air outlet of part flow arrangement 220 is connected with sack cleaner 230, and this air outlet is located on the position of flue gas even distribution in sack cleaner 230 that can make in the part flow arrangement 220.Said gravitational precipitator 210, sack cleaner 230, part flow arrangement 230 adopt the modular combining structures.
The air outlet in secondary air channel 240 is connected with air door 250.
One end of air-introduced machine 260 is connected with air door 250, and the other end is connected with chimney 270.
Negative-pressure pipeline 291, one ends are connected with one-level flue 200, and the other end is connected with the stirring main building 1 of asphalt mixing plant, send in the one-level flue 200 stirring the dust that raises up in the main building 1, get into gravitational precipitator 210, sack cleaner 230 dust removals by filtration more successively.
The concrete working condition of this equipment is following:
With reference to shown in Figure 1, air door 250 is regulated the size that gets into the cleaner air quantity.Under the effect of air-introduced machine 260, air-introduced machine 260 preposition associated components inside will produce negative pressure, and air-introduced machine 260 rearmounted chimney 270 inside will produce malleation.The flue gas that contains fine sand material and dust composition from drying system 3 gets into gravitational precipitators 210 by one-level flue 200; Under the effect of gravitational precipitator 210: the fine sand material in the flue gas becomes fractional precipitation, concentrates, and gets in the stirring main building 1 after sending in the aggregate elevator structure 4 by first conveyance conduit 281; Dust composition in the flue gas is sent in the part flow arrangement 220 by the outlet of gravitational precipitator 210; The flue gas that leads to part flow arrangement 220 under the shunting action of part flow arrangement 220, is uniformly distributed in the sack cleaner 230; Under the effect of sack cleaner 230: the dust in the flue gas becomes fractional precipitation, concentrates, and sends in the powder feed system 5 by second conveyance conduit 282; After clean air passes through secondary flue 240, air door 250, air-introduced machine 260 after gravitational precipitator 210 and sack cleaner 230 filter, discharge dust pelletizing systems by chimney 270.Stir and send in the dust pelletizing system after main building 1 internal cause aggregate elevator structure 4 sheds, sieves, carries the dust that raises up of the raise up dust and the generations such as 5 weighings of powder feed system, conveying powder of generations such as aggregate to collect by main building negative-pressure pipeline 291, send into gravitational precipitator 210 through one-level flue 200 and carry out the two-stage dedusting with sack cleaner 230.
With reference to shown in Figure 1, one-level flue 200 is provided with cold blast sliding valve 201 and temperature sensor 202, is used to prevent the overheated of sack cleaner 230, and the cloth bag that guarantees sack cleaner 230 is within rational operating temperature.When the temperature in the dust pelletizing system 2 surpasses the temperature that temperature sensor 202 presets, drying system 3 will quit work; When the flue-gas temperature of leading to dust pelletizing system 2 when drying system 3 surpasses the highest allowable temperature of said sack cleaner 230, the cold blast sliding valve of opening emergency use automatically 201 is introduced cold airs cool off.
With reference to shown in Figure 1, be provided with Differential Pressure Unit 231 between the inlet of sack cleaner 230 and the outlet, show the load loss of sack cleaner 230.When Differential Pressure Unit 231 show values are too high; Possibly be that water content ratio of aggregate is higher, the dust of generation is too much or because the imperfect combustion of burner causes, and should reduce this moment or the supply of regular interruption aggregate; Thoroughly remove dust with compressed air, and then the supply aggregate; Crossing when low when Differential Pressure Unit 231 show values, possibly be to be entrained with by the gas that chimney 270 is discharged that the part dust leaks or atmosphere blowback gate open is disconnected too frequently causes, and should increase the atmosphere blowback gate open break time this moment at interval.In the 230 cleaning cloth bag stages of sack cleaner; Connect atmosphere blowback door (figure is last not to make a check mark); Negative pressure in the sack cleaner 230 can force the export to inlet of air from cloth bag, thereby cloth bag will heave, and makes the dust that is deposited on the cloth bag outer surface fall into aggregate bin.282 of second conveyance conduits that are positioned at aggregate bin bottom are conveyed into powder feed system 5 with dust; Close atmosphere blowback door, extraneous air can get into and make cloth bag effectively to shake.
Specific embodiment two: with reference to shown in Figure 2; A kind of asphalt mixing plant comprises stirring main building 1, dust pelletizing system 2, drying system 3, aggregate elevator structure 4, powder feed system 5; This dust pelletizing system 2 comprises successively one-level flue 200, gravitational precipitator 210, part flow arrangement 220, sack cleaner 230, secondary flue 240, air door 250, air-introduced machine 260, the chimney 270 that is communicated with, and also comprises first carrier pipe 281, second carrier pipe 282 and negative-pressure pipeline 292.
With reference to shown in Figure 2, negative-pressure pipeline 292, one ends are connected with part flow arrangement 220, and the other end is connected with the stirring main building 1 of asphalt mixing plant, and the dust that raises up that stirs in the main building 1 is sent in the part flow arrangement 220, get into sack cleaner 230 dust removals by filtration again.
The structure of these specific embodiment two described miscellaneous parts is identical with specific embodiment one with connected mode, does not do at this and gives unnecessary details.
The concrete working condition of this equipment is following:
With reference to shown in Figure 2; Stir and send in the dust pelletizing system after main building 1 internal cause aggregate elevator structure 4 sheds, sieves, carries the dust that raises up of the raise up dust and the generations such as 5 weighings of powder feed system, conveying powder of generations such as aggregate to collect by main building negative-pressure pipeline 292; The dust granules that cause raises up is less, temperature is low; Both can accomplish dust removing effects through sack cleaner 230, therefore the dust that raises up is directly sent into sack cleaner 230 through part flow arrangement 220 carries out dedusting.
The working condition of these specific embodiment two described miscellaneous parts is identical with specific embodiment one, does not do at this and gives unnecessary details.
The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented with this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (10)
1. the dust pelletizing system of an asphalt mixing plant; It is characterized in that: comprise the one-level flue, gravitational precipitator, part flow arrangement, sack cleaner, secondary flue, air door, air-introduced machine and the chimney that are communicated with successively; The flue gas that the drying system of asphalt mixing plant is discharged gets into gravitational precipitator through the one-level flue; Clean gas by gravitational precipitator, sack cleaner filter in the entering light breeze road, back is successively sent into chimney behind the air-introduced machine ventilation door, said gravitational precipitator is communicated with sack cleaner through making the part flow arrangement of flue gas even distribution in sack cleaner.
2. the dust pelletizing system of asphalt mixing plant according to claim 1 is characterized in that: said one-level flue is provided with cold blast sliding valve and the temperature sensor that interlock is used.
3. the dust pelletizing system of asphalt mixing plant according to claim 1, it is characterized in that: said sack cleaner is an atmosphere back flushing type sack cleaner, its inlet with export between be provided with Differential Pressure Unit.
4. the dust pelletizing system of asphalt mixing plant according to claim 1; It is characterized in that: the air inlet of said part flow arrangement is connected with the air outlet of gravitational precipitator; The air outlet of part flow arrangement is connected with sack cleaner, and this air outlet is located on the position of flue gas even distribution in sack cleaner that can make in the part flow arrangement.
5. the dust pelletizing system of asphalt mixing plant according to claim 1 is characterized in that: said gravitational precipitator, sack cleaner, part flow arrangement employing modular combining structure.
6. the dust pelletizing system of asphalt mixing plant according to claim 1, it is characterized in that: the gravitational precipitator of said asphalt mixing plant dust pelletizing system is provided with first carrier pipe that is communicated with the aggregate elevator structure of asphalt mixing plant.
7. the dust pelletizing system of asphalt mixing plant according to claim 6, it is characterized in that: the sack cleaner of said asphalt mixing plant dust pelletizing system is provided with second carrier pipe that is communicated with the powder feed system of asphalt mixing plant.
8. the dust pelletizing system of asphalt mixing plant according to claim 1, it is characterized in that: said asphalt mixing plant dust pelletizing system is provided with the negative-pressure pipeline that is communicated with the main building of asphalt mixing plant.
9. the dust pelletizing system of asphalt mixing plant according to claim 8, it is characterized in that: institute's negative-pressure pipeline one end is connected with the one-level flue, and the other end is connected with the main building of asphalt mixing plant.
10. the dust pelletizing system of asphalt mixing plant according to claim 8, it is characterized in that: said negative-pressure pipeline one end is connected with part flow arrangement, and the other end is connected with the main building of asphalt mixing plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220064923 CN202516516U (en) | 2012-02-27 | 2012-02-27 | Dedusting system of asphalt mixing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220064923 CN202516516U (en) | 2012-02-27 | 2012-02-27 | Dedusting system of asphalt mixing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202516516U true CN202516516U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220064923 Expired - Lifetime CN202516516U (en) | 2012-02-27 | 2012-02-27 | Dedusting system of asphalt mixing equipment |
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| CN (1) | CN202516516U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126552A (en) * | 2015-07-27 | 2015-12-09 | 成都市松川金属材料有限公司 | Concrete spiral-type dust removal and recycling system |
| CN105128153A (en) * | 2015-07-27 | 2015-12-09 | 成都市松川金属材料有限公司 | Concrete-dust centralized recycling system |
| CN105839496A (en) * | 2015-02-03 | 2016-08-10 | 日工株式会社 | Asphalt manufacturing device |
| CN107029568A (en) * | 2017-05-03 | 2017-08-11 | 中交公局第三工程有限公司 | A kind of asphalt mixing unit and asphalt production line |
| WO2020098589A1 (en) * | 2018-11-16 | 2020-05-22 | 三一汽车制造有限公司 | Flue gas heat recovery system for drying drum of asphalt station and asphalt mixing and stirring device |
| CN112156568A (en) * | 2020-09-22 | 2021-01-01 | 福建泉成机械有限公司 | Control method of cloth bag dust removal negative pressure associated combustor |
-
2012
- 2012-02-27 CN CN 201220064923 patent/CN202516516U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839496A (en) * | 2015-02-03 | 2016-08-10 | 日工株式会社 | Asphalt manufacturing device |
| CN105126552A (en) * | 2015-07-27 | 2015-12-09 | 成都市松川金属材料有限公司 | Concrete spiral-type dust removal and recycling system |
| CN105128153A (en) * | 2015-07-27 | 2015-12-09 | 成都市松川金属材料有限公司 | Concrete-dust centralized recycling system |
| CN105128153B (en) * | 2015-07-27 | 2018-04-24 | 韶关挖掘机制造厂有限公司 | A kind of concrete concentrated dust collecting system |
| CN105126552B (en) * | 2015-07-27 | 2018-06-15 | 七彩建设发展有限公司 | A kind of screw concrete formula dedusting recovery system |
| CN107029568A (en) * | 2017-05-03 | 2017-08-11 | 中交公局第三工程有限公司 | A kind of asphalt mixing unit and asphalt production line |
| CN107029568B (en) * | 2017-05-03 | 2020-01-17 | 中交一公局第三工程有限公司 | Asphalt mixing device and asphalt production line |
| WO2020098589A1 (en) * | 2018-11-16 | 2020-05-22 | 三一汽车制造有限公司 | Flue gas heat recovery system for drying drum of asphalt station and asphalt mixing and stirring device |
| CN112156568A (en) * | 2020-09-22 | 2021-01-01 | 福建泉成机械有限公司 | Control method of cloth bag dust removal negative pressure associated combustor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Fengze District of Quanzhou City, Fujian province 362000 Xunmei Industrial Zone Patentee after: Fujian Nanfang pavement machinery Co., Ltd Address before: Fengze District of Quanzhou City, Fujian province 362000 Xunmei Industrial Zone Patentee before: FUJIAN SOUTH HIGHWAY MACHINERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |
|
| CX01 | Expiry of patent term |