CN110585805A - A settling tank for hot regeneration facility of bituminous mixture plantmix - Google Patents
A settling tank for hot regeneration facility of bituminous mixture plantmix Download PDFInfo
- Publication number
- CN110585805A CN110585805A CN201910900573.2A CN201910900573A CN110585805A CN 110585805 A CN110585805 A CN 110585805A CN 201910900573 A CN201910900573 A CN 201910900573A CN 110585805 A CN110585805 A CN 110585805A
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- CN
- China
- Prior art keywords
- tail gas
- centrifugal
- chamber
- settling
- primary
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 230000008929 regeneration Effects 0.000 title claims description 13
- 238000011069 regeneration method Methods 0.000 title claims description 13
- 238000004064 recycling Methods 0.000 claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims abstract description 9
- 238000004062 sedimentation Methods 0.000 claims description 14
- 238000005119 centrifugation Methods 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 22
- 239000000428 dust Substances 0.000 abstract description 20
- 239000010426 asphalt Substances 0.000 abstract description 15
- 239000000843 powder Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
Abstract
A settling tank for hot plant recycling equipment for asphalt mixtures comprises a primary tank body and a secondary tank body, wherein the upper part of the primary tank body is provided with a tail gas inlet and a primary settling tail gas outlet, and the middle lower part of the primary tank body is provided with an inertial settling chamber; the second-stage box body comprises a fan-shaped centrifugal chamber and a centrifugal settling chamber connected to the bottom of the centrifugal chamber, the side wall of the centrifugal chamber is provided with a second-stage settling tail gas inlet in butt joint with the first-stage settling tail gas outlet, the bottom of the centrifugal chamber is provided with a particle centrifugal discharge port, the centrifugal settling chamber is in butt joint with the centrifugal chamber through the particle centrifugal discharge port, and the side wall of the centrifugal chamber is also provided with a tail gas outlet at a position deviating from the circle center of the fan shape. The settling tank is provided with the primary tank body and the secondary tank body, has a simple and compact structure, occupies a small space, greatly reduces the content of fine powder particles in tail gas, has low failure rate, and improves the dust removal efficiency, thereby effectively prolonging the service life of a fan.
Description
Technical Field
The invention relates to a treatment device of asphalt tail gas, in particular to a settling tank for asphalt mixture plant-mixing thermal regeneration equipment.
Background
The existing process flow is that the waste asphalt mixture (regeneration cold material) is sent into a drying and heating system for drying and heating treatment, the regenerated material which is qualified in heating is temporarily stored and metered, and then sent into a primary machine stirring cylinder through a conveying system to be stirred together with a certain proportion of new asphalt mixture, and finally the finished asphalt mixture meeting the requirement of mix proportion is obtained. In the existing asphalt mixture regeneration technology, the hot plant mix regeneration technology is one of regeneration technologies which are widely applied at present, and the main technology is as follows: conveying and lifting the cold and old asphalt mixture, drying and heating, temporarily storing hot materials, metering, conveying the hot materials, mixing and stirring the hot materials with new aggregates, and obtaining finished materials. The asphalt mixture plant-mixed hot recycling equipment generates a large amount of tail gas in the production and operation processes, and the traditional tail gas treatment technology is that the tail gas is pumped to a drying roller of primary equipment by an induced draft fan for secondary combustion, and is finally discharged after being treated by a bag-type dust collector.
Because contain a large amount of dust particles in the regeneration tail gas, if inside the dust particle directly got into the fan, will lead to fan impeller wearing and tearing aggravation, damper wearing and tearing are serious, finally lead to the unable normal work of fan, will lead to the unable normal operation production of whole platform equipment when serious.
For overcoming above shortcoming, chinese utility model that the bulletin number is CN 203944246U of granting discloses an asphalt thermal regeneration tail gas processing apparatus, include thermal regeneration cylinder, primary machine cylinder and connect in draught fan between thermal regeneration cylinder and the primary machine cylinder still includes the deposit room, the import of deposit room with the thermal regeneration cylinder passes through the pipe connection, the export of deposit room with the draught fan passes through the pipe connection, be provided with filter equipment in the deposit room. This settling chamber relies on gravity and filter equipment to make dust particle subside and filter in the tail gas, but adds filter equipment, not only increases equipment cost, because dust particle surface cladding has the pitch composition, easy adhesion needs often to wash or change the filter screen on filter equipment's filter screen moreover, and dust collection efficiency is not high.
Disclosure of Invention
The invention provides a settling tank for plant-mixing hot recycling equipment for asphalt mixtures, and mainly aims to overcome the defects that the settling tank of the conventional asphalt hot recycling tail gas treatment device needs to be frequently replaced, cleaned and replaced by a filter screen, the dust removal efficiency is low, the equipment cost is relatively high and the like.
The invention adopts the following technical scheme:
a settling tank for hot plant recycling equipment for bituminous mixture comprises a primary tank body and a secondary tank body, wherein the upper part of the primary tank body is provided with a tail gas inlet and a primary settling tail gas outlet, and the middle lower part of the primary tank body is provided with an inertial settling chamber; the second grade box includes that one is fan-shaped structure's centrifugal chamber and connect in the centrifugal settling chamber of centrifugal chamber bottom, the centrifugal chamber lateral wall be equipped with one with the second grade that the tail gas export butt joint was subsided to the one-level is subsided the tail gas import, and the bottom of this centrifugal chamber is equipped with a granule centrifugation discharge port, the centrifugal settling chamber passes through granule centrifugation discharge port with the centrifugal chamber butt joint, the lateral wall of centrifugal chamber still is equipped with the tail gas export on the position of deviating fan-shaped place centre of a circle.
Furthermore, the bottom parts of the inertial settling chamber and the centrifugal settling chamber are provided with a heavy hammer ash discharging device.
Further, the tail gas inlet and the primary sedimentation tail gas outlet are separated by a vertical partition plate.
Furthermore, the first-stage box body is of a Y-shaped structure.
Further, the outer side wall of the centrifugal settling chamber is tangent to the outer arc of the bottom of the centrifugal chamber.
Furthermore, the outer side wall of the inertial settling chamber communicated and connected with the tail gas inlet forms an inclined surface, and an obtuse angle is formed between the inclined surface and the outer side wall of the tail gas inlet.
Furthermore, the top end of the first-stage sedimentation tail gas outlet is arc-shaped and is in smooth transition butt joint with the outer arc of the centrifugal chamber.
Furthermore, the number of the tail gas outlets is two, and the two tail gas outlets are respectively and correspondingly arranged on the front side wall and the rear side wall of the centrifugal chamber.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages: the settling tank with the structure comprises a primary tank body and a secondary tank body, wherein the secondary tank body comprises a centrifugal chamber with a fan-shaped structure and a centrifugal settling chamber arranged below the centrifugal chamber, asphalt tail gas firstly passes through the primary tank body to enable part of dust particles in the tail gas to realize primary settling by utilizing inertia, and the tail gas is subjected to primary dust removal; then enters a centrifugal chamber of a secondary box body for secondary centrifugation, and dust particles enter a centrifugal settling chamber from a particle centrifugal discharge port of the centrifugal chamber under the centrifugal action. The settling tank disclosed by the invention is simple and compact in structure, small in occupied space, low in failure rate and capable of greatly reducing the content of fine powder particles in tail gas and improving the dust removal efficiency, so that the service life of a fan is effectively prolonged.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a left side view of the present invention.
FIG. 3 is a schematic view of the internal exhaust gas and dust particle of the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth below in order to provide a thorough understanding of the present invention, but it will be apparent to those skilled in the art that the present invention may be practiced without these details. Well-known components, methods and processes are not described in detail below.
A settling tank for hot plant recycling equipment for asphalt mixture, which is shown in figures 1 and 2, comprises a primary tank body 10 and a secondary tank body 20. The upper part of the first-stage box body 10 is provided with a tail gas inlet 11 and a first-stage sedimentation tail gas outlet 12, the middle lower part of the first-stage box body 10 is provided with an inertia sedimentation chamber 13, and the tail gas inlet 11, the first-stage sedimentation tail gas outlet 12 and the inertia sedimentation chamber 13 form a Y-shaped or approximately Y-shaped structure.
Referring to fig. 1 and 3, the outer side wall of the inertial settling chamber 13, which is in communication connection with the exhaust gas inlet 11, forms an inclined surface, and an obtuse angle is formed between the inclined surface and the outer side wall of the exhaust gas inlet 11, so that on one hand, a part of dust particles in the exhaust gas can collide on the inclined surface and settle into the inertial settling chamber 13 under the action of inertia; on the other hand, the device can also play a role in guiding the flow of the tail gas. The tail gas inlet 11 and the primary settling tail gas outlet 12 are separated by a vertical partition 14, so that the tail gas entering from the tail gas inlet 11 is prevented from being directly discharged from the primary settling tail gas outlet 12 without being settled.
Referring to fig. 1 to 3, the secondary tank 20 includes a centrifugal chamber 21 having a fan-shaped structure and a centrifugal settling chamber 22 connected to the bottom of the centrifugal chamber, and the top end of the primary settling tail gas outlet 12 is arc-shaped and is in smooth transition butt joint with the outer arc of the centrifugal chamber 21. The side wall of the centrifugal chamber 21 is provided with a secondary sedimentation tail gas inlet 211 butted with the primary sedimentation tail gas outlet 12, the bottom of the centrifugal chamber 21 is also provided with a particle centrifugal discharge port 212, the centrifugal sedimentation chamber 22 is butted with the centrifugal chamber 21 through the particle centrifugal discharge port 212, and the side wall of the centrifugal chamber 21 is also provided with a tail gas outlet 213 at the position deviating from the circle center of the fan shape. The number of the exhaust outlets 213 may be two, and the two outlets are respectively and correspondingly disposed on the front and rear sidewalls of the centrifugal chamber.
Referring to fig. 1, the outer sidewall of the centrifugal settling chamber 22 is tangent to the outer arc of the bottom of the centrifugal chamber 21 to guide dust particles centrifugally thrown from the particle centrifugal discharge port 212 of the centrifugal chamber 21 into the centrifugal settling chamber 22.
Referring to fig. 1 and 2, the bottom of the inertial settling chamber 13 and the centrifugal settling chamber 22 are provided with a heavy hammer ash discharging device 15. When the fine powder particles at the bottom of the inertial settling chamber 13 and the centrifugal settling chamber 22 are accumulated to a certain weight, the door plate of the heavy hammer ash discharging device 15 is automatically opened, and the door plate is automatically closed after the ash discharge is finished.
Referring to fig. 3, "→" in fig. 3 indicates a flow direction of the off-gas, and "⇨" indicates a movement direction of the dust particles. The asphalt tail gas firstly passes through a primary box body 10, so that part of dust particles in the tail gas realize primary sedimentation by utilizing inertia, and the tail gas is subjected to primary dust removal; then enters the centrifugal chamber 21 of the secondary box body 20 for secondary centrifugation, dust particles enter the centrifugal settling chamber 22 from the particle centrifugal discharge port 212 of the centrifugal chamber 21 under the centrifugal action, and the tail gas after dust removal is discharged from the tail gas outlet 213.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (8)
1. The utility model provides a settling tank for hot regeneration facility of bituminous mixture plantmix which characterized in that: the device comprises a primary box body and a secondary box body, wherein the upper part of the primary box body is provided with a tail gas inlet and a primary sedimentation tail gas outlet, and the middle lower part of the primary box body is provided with an inertial sedimentation chamber; the second grade box includes that one is fan-shaped structure's centrifugal chamber and connect in the centrifugal settling chamber of centrifugal chamber bottom, the centrifugal chamber lateral wall be equipped with one with the second grade that the tail gas export butt joint was subsided to the one-level is subsided the tail gas import, and the bottom of this centrifugal chamber is equipped with a granule centrifugation discharge port, the centrifugal settling chamber passes through granule centrifugation discharge port with the centrifugal chamber butt joint, the lateral wall of centrifugal chamber still is equipped with the tail gas export on the position of deviating fan-shaped place centre of a circle.
2. The settling tank for the hot plant recycling equipment of bituminous mixes according to claim 1, characterized in that: and the bottoms of the inertial settling chamber and the centrifugal settling chamber are provided with a heavy hammer ash discharge device.
3. The settling tank for the hot plant recycling equipment of bituminous mixes according to claim 1, characterized in that: the tail gas inlet and the primary sedimentation tail gas outlet are separated by a vertical partition plate.
4. The settling tank for the hot plant recycling equipment of bituminous mixes according to claim 1, characterized in that: the first-stage box body is of a Y-shaped structure.
5. The settling tank for the hot plant recycling equipment of bituminous mixes according to claim 1, characterized in that: the outer side wall of the centrifugal settling chamber is tangent to the outer side arc of the bottom of the centrifugal chamber.
6. The settling tank for the hot plant recycling equipment of bituminous mixes according to claim 1, characterized in that: the outer side wall of the inertial settling chamber, which is communicated and connected with the tail gas inlet, forms an inclined plane, and an obtuse angle is formed between the inclined plane and the outer side wall of the tail gas inlet.
7. The settling tank for the hot plant recycling equipment of bituminous mixes according to claim 1, characterized in that: the top end of the first-stage sedimentation tail gas outlet is arc-shaped and is in smooth transition butt joint with the arc outside the centrifugal chamber.
8. The settling tank for the hot plant recycling equipment of bituminous mixes according to claim 1, characterized in that: the two tail gas outlets are respectively and correspondingly arranged on the front side wall and the rear side wall of the centrifugal chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900573.2A CN110585805A (en) | 2019-09-23 | 2019-09-23 | A settling tank for hot regeneration facility of bituminous mixture plantmix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900573.2A CN110585805A (en) | 2019-09-23 | 2019-09-23 | A settling tank for hot regeneration facility of bituminous mixture plantmix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110585805A true CN110585805A (en) | 2019-12-20 |
Family
ID=68862532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910900573.2A Pending CN110585805A (en) | 2019-09-23 | 2019-09-23 | A settling tank for hot regeneration facility of bituminous mixture plantmix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110585805A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040084566A (en) * | 2003-03-28 | 2004-10-06 | 주식회사 대연건설 | Cyclone type gravity sinkage dust collection apparatus |
| CA2510099A1 (en) * | 2004-07-21 | 2006-01-21 | Rj Oil Sands Inc. | Separation and recovery of bitumen oil from tar sands |
| US20070227105A1 (en) * | 2006-03-31 | 2007-10-04 | Jacobson Wayne D | Apparatus and method for removing particulates from a fluid stream |
| CN201200933Y (en) * | 2008-05-07 | 2009-03-04 | 上海理工大学 | Spiral casing type cyclone separating device with inertia bend |
| CN104128046A (en) * | 2014-07-29 | 2014-11-05 | 洛阳理工学院 | High-efficiency cyclone dust collector integrating gravity dust removal |
| CN107879412A (en) * | 2017-11-10 | 2018-04-06 | 中国石油大学(华东) | Air supporting eddy flow contactor and air supporting cyclone system |
| CN210699164U (en) * | 2019-09-23 | 2020-06-09 | 福建省铁拓机械股份有限公司 | A settling tank for hot regeneration facility of bituminous mixture plantmix |
-
2019
- 2019-09-23 CN CN201910900573.2A patent/CN110585805A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040084566A (en) * | 2003-03-28 | 2004-10-06 | 주식회사 대연건설 | Cyclone type gravity sinkage dust collection apparatus |
| CA2510099A1 (en) * | 2004-07-21 | 2006-01-21 | Rj Oil Sands Inc. | Separation and recovery of bitumen oil from tar sands |
| US20070227105A1 (en) * | 2006-03-31 | 2007-10-04 | Jacobson Wayne D | Apparatus and method for removing particulates from a fluid stream |
| CN201200933Y (en) * | 2008-05-07 | 2009-03-04 | 上海理工大学 | Spiral casing type cyclone separating device with inertia bend |
| CN104128046A (en) * | 2014-07-29 | 2014-11-05 | 洛阳理工学院 | High-efficiency cyclone dust collector integrating gravity dust removal |
| CN107879412A (en) * | 2017-11-10 | 2018-04-06 | 中国石油大学(华东) | Air supporting eddy flow contactor and air supporting cyclone system |
| CN210699164U (en) * | 2019-09-23 | 2020-06-09 | 福建省铁拓机械股份有限公司 | A settling tank for hot regeneration facility of bituminous mixture plantmix |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 362000 No.1 intelligent equipment Industrial Park, Luojiang District, Heshi Town, Luojiang District, Quanzhou City, Fujian Province Applicant after: Fujian tietuo Machinery Co., Ltd Address before: 362000 Tong Xi industrial zone, Luojiang District, Fujian, Quanzhou Applicant before: FUJIAN TIETUO MACHINERY Co.,Ltd. |
|
| CB02 | Change of applicant information |