CN205784581U - The pyrolysis installation that a kind of heat carrier recycles - Google Patents
The pyrolysis installation that a kind of heat carrier recycles Download PDFInfo
- Publication number
- CN205784581U CN205784581U CN201620457839.2U CN201620457839U CN205784581U CN 205784581 U CN205784581 U CN 205784581U CN 201620457839 U CN201620457839 U CN 201620457839U CN 205784581 U CN205784581 U CN 205784581U
- Authority
- CN
- China
- Prior art keywords
- heat carrier
- circulation passage
- central circulation
- pyrolysis
- pyrolysis oven
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
This utility model provides the pyrolysis installation that a kind of heat carrier recycles, and belongs to material pyrolytic technique field.Including pyrolysis oven, central circulation passage, end face sieve plate and heat carrier collection conduit, wherein, central circulation passage is positioned at inside pyrolysis oven, heat carrier can be transported to front end from rear end when rotating by it, burner hearth is formed between central circulation channel outer wall and pyrolysis oven inwall, and all having through hole on the sidewall of rear and front end, in order to the suction of heat carrier and discharge；End face sieve plate is fixedly installed on the rear end of central circulation passage, separates with material for heat carrier；Heat carrier collection conduit connection central circulation passage and burner hearth, for introducing central circulation passage in burner hearth by heat carrier.This utility model, makes heat carrier be re-delivered to pyrolysis oven feed end by central circulation passage, improves the cycle efficieny of heat carrier, and heat carrier collection conduit is distributed some strip holes, under centrifugal action, makes heat carrier separate more thorough with carbon slag.
Description
Technical field
This utility model belongs to material pyrolytic technique field, especially relates to what a kind of heat carrier recycled
Pyrolysis installation.
Background technology
Pyrolysis refers to that material is heated the course of reaction decomposed, and also referred to as cracking, is to utilize organic heat not
Stability, the process of decomposes under conditions of anaerobic or anoxia.
Pyrolysis installation is mainly pyrolysis oven, and material enters from the feed end of pyrolysis oven, to pyrolysis furnace discharge end
Constantly it is pyrolyzed during conveying, is discharged by the discharge end of pyrolysis oven after being pyrolyzed into carbon slag, usual feelings
Under condition, needing to provide heat carrier in the pyrolytic process of material, heat carrier penetrates between material, so that
Material is heated evenly, and needs for this to provide a kind of circulative metabolism or circulating device to make heat carrier repeatedly in heat
Solve circulation in stove, it is also desirable to the carbon slag after pyrolysis is constantly separated discharge.
In prior art, usual above-mentioned circulative metabolism is set up outside pyrolysis installation, participates in the heat carrier of pyrolysis
Again isolated by segregation apparatus after discharging pyrolysis oven, be fed into pyrolysis oven feed end the most again, from
And be delivered in pyrolysis oven, this mode disadvantageously, when heat carrier is discharged after pyrolysis oven, and heat is a large amount of
Running off, efficiency of energy utilization is relatively low.
Utility model content
In order to solve the problems referred to above, this utility model provides the pyrolysis installation that a kind of heat carrier recycles,
Heat carrier circulating device is set up inside pyrolysis oven, to prevent heat from dissipating, improves the utilization rate of the energy.
The pyrolysis installation that this utility model heat carrier recycles mainly include pyrolysis oven, central circulation passage,
End face sieve plate and heat carrier collection conduit, wherein,
Pyrolysis oven, including feed end and discharge end；
Central circulation passage, is positioned at inside pyrolysis oven, and the front end of central circulation passage is arranged on entering of pyrolysis oven
Material end, rear end is arranged on the discharge end of pyrolysis oven, and heat carrier can be transported to front end from rear end when rotating by it,
Burner hearth is formed between central circulation channel outer wall and pyrolysis oven inwall, and equal on the sidewall of rear and front end
Have through hole；
End face sieve plate, is fixedly installed on the rear end of central circulation passage, is provided with through hole, described through hole
It is suitably sized to the carbon slag after pyrolysis pass through, and is suitable to prevent heat carrier from passing through；
Heat carrier collection conduit, one end connects the through hole of described central circulation passage rear end, and the other end extends to
In described burner hearth, described heat carrier collection conduit internal diameter size is suitable to heat carrier and passes through.
When heat carrier is after the feed end of pyrolysis oven enters the burner hearth of pyrolysis oven, owing to pyrolysis oven feed end is relative
Discharge end is higher, and under gravity, heat carrier can gradually be transported from feed end with the revolution of pyrolysis oven
Discharge end, and gradually assemble at end face sieve plate, carbon slag is discharged pyrolysis oven by the through hole on end face sieve plate,
And heat carrier needs to be re-delivered to the feed end of pyrolysis oven, in order to enter new pyrolysis cyclical, this practicality is new
Type central circulation passage is designed by this problem of solution, and central circulation passage goes out to be provided with heat at end face sieve plate
Carrier collection conduit, thus heat carrier is collected into central circulation passage rear end, and defeated by central circulation passage
Deliver at the charging aperture of front end.
Preferably, heat carrier collection conduit be arranged on end face sieve plate towards pyrolysis oven central authorities a face on,
It is used for collecting and can not pass through the heat carrier of through hole on end face sieve plate.
Preferably, described central circulation passage is helical duct, and the central axis of helical duct is pyrolysis oven
Body centre axis.
, described central circulation passage is cylindrical conduit in such scheme preferably, and in described cylindrical shape
It is provided with the helical blade connecting its two ends on the inwall of pipeline, constitutes spiral path of navigation, thus guide
Heat carrier screw is to feed end.
In such scheme preferably, described central circulation passage rear end is stretched in one end of heat carrier collection conduit
Through hole in a segment distance, when preventing the heat carrier getting rid of in central circulation passage from rotating with central circulation passage
Again fall in heat carrier collection conduit.
In such scheme preferably, the quantity at least two of heat carrier collection conduit.
In such scheme preferably, when the quantity of heat carrier collection conduit is two or more, during it is distributed on
On the circulation canal sidewall of centre.
, heat carrier collection conduit is arc pipe in such scheme preferably, and it leads to from connecting central circulation
When the one end in road extends to the one end away from central circulation passage, bending direction and the rotation of central circulation passage
Direction is consistent, and its away from the one end open direction of central circulation passage towards the rotation side of central circulation passage
To.
Preferably, heat carrier collection conduit typically becomes placed against away from the one end open of central circulation passage
On pyrolysis oven inwall, when heat carrier rotates with pyrolysis oven, under the influence of centrifugal force, heat carrier can be got rid of
On the inwall of pyrolysis oven, it is adjacent to opening be arranged on pyrolysis oven inwall easier collection heat carrier.
In such scheme preferably, heat carrier collection conduit arranges some strip holes, described strip hole
Size is not more than the clear size of opening on end face sieve plate, and the material that heat carrier collecting pipe is collected not only includes heat load
Body, also includes the carbon slag that is attached on heat carrier and free carbon slag, for improving cycle efficieny, should try one's best
Carbon slag is avoided again to be transported to the feed end of pyrolysis oven, under centrifugal action, in heat carrier collection conduit
The some strip holes arranged are conducive to the carbon slag adhered on heat carrier and free carbon slag are entered stove again
Thorax rear end, is expelled to discharge end by end face sieve plate.
The endless form of the pyrolysis installation that this utility model heat carrier recycles has two kinds: 1, central circulation
Passage drives heat carrier collection conduit and end face sieve plate individually rotate or do differential motion with pyrolysis oven, passes through
Heat carrier is got rid of into central circulation passage by the centrifugal force rotated；2, central circulation passage is Tong Bu with pyrolysis oven turns
Dynamic, by the centrifugal force rotated, heat carrier is got rid of into central circulation passage.
This utility model circulating load (circulation rate) can control central circulation passage rotating speed and heat carrier is collected
Number of tubes controls.
By this utility model, heat carrier is made to be re-delivered to pyrolysis oven feed end by central circulation passage,
And circulating load can be controlled according to the rotating speed of central circulation passage and heat carrier collection conduit quantity, improve
The cycle efficieny of heat carrier, heat carrier collection conduit is set to arc, and is distributed some strip holes thereon,
Under centrifugal action, heat carrier separates more thorough with carbon slag.
Accompanying drawing explanation
Fig. 1 is the front view of a preferred embodiment of the pyrolysis installation that this utility model heat carrier recycles.
Fig. 2 is end face sieve plate and the heat carrier collection conduit structural representation of embodiment illustrated in fig. 1.
Wherein, 1 is pyrolysis oven, and 2 is central circulation passage, and 3 is end face sieve plate, and 4 is heat carrier collecting pipe
Road.
Detailed description of the invention
Clearer, below in conjunction with this reality for the purpose making this utility model implement, technical scheme and advantage
With the accompanying drawing in new embodiment, the technical scheme in this utility model embodiment is carried out more detailed retouching
State.In the accompanying drawings, the most same or similar label represents same or similar element or has identical
Or the element of similar functions.Described embodiment is a part of embodiment of this utility model rather than all
Embodiment.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this practicality
Novel, and it is not intended that to restriction of the present utility model.Based on the embodiment in this utility model, ability
The every other embodiment that territory those of ordinary skill is obtained under not making creative work premise, all belongs to
Scope in this utility model protection.Below in conjunction with the accompanying drawings embodiment of the present utility model is carried out specifically
Bright.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ",
"front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. refer to
The orientation shown or position relationship, for based on orientation shown in the drawings or position relationship, are for only for ease of description originally
Utility model and simplification describe rather than indicate or imply that the device of indication or element must have specific side
Position, with specific azimuth configuration and operation, therefore it is not intended that restriction to this utility model protection domain.
Below by embodiment, this utility model is described in further details.
In order to solve the problems referred to above, this utility model provides the pyrolysis installation that a kind of heat carrier recycles,
Heat carrier circulating device is set up inside pyrolysis oven, to prevent heat from dissipating, improves the utilization rate of the energy.
As it is shown in figure 1, the pyrolysis installation that this utility model heat carrier recycles mainly include pyrolysis oven 1,
Central circulation passage 2, end face sieve plate 3 and heat carrier collection conduit 4, wherein,
Pyrolysis oven 1, including feed end and discharge end；
Central circulation passage 2, is positioned at pyrolysis oven 1 internal, and the front end of central circulation passage 2 is arranged on pyrolysis
The feed end of stove 1, rear end is arranged on the discharge end of pyrolysis oven 1, and it can be defeated from rear end by heat carrier when rotating
Deliver to front end, between central circulation passage 2 outer wall and pyrolysis oven 1 inwall, form burner hearth, and near front and back
Through hole is all had on the sidewall at two ends；
End face sieve plate 3, is fixedly installed on the rear end of central circulation passage 2, is provided with through hole, described
Carbon slag after clear size of opening is suitable to pyrolysis passes through, and is suitable to prevent heat carrier from passing through；
Heat carrier collection conduit 4, one end connects the through hole of described central circulation passage rear end, and the other end extends
To described burner hearth, described heat carrier collection conduit 4 internal diameter size is suitable to heat carrier and passes through.
It is understood that all have through hole on the sidewall that central circulation passage 2 is at two ends, it is respectively
In order to receive heat carrier and discharge heat carrier.
Further, end face sieve plate 3 is integrally fixed at the end of central circulation passage 2, and it leads to along with central circulation
The rotation in road 2 and rotate, many places hollow out on sieve plate, it is simple to carbon slag through hole, hollow out form is varied, can
To be circle hole shape, strip, rail shape etc., it is also possible to as in figure 2 it is shown, be arranged with some on circumferencial direction
Flange, adjacent flange leaves gap, passes through for carbon slag.
When heat carrier is after the feed end of pyrolysis oven 1 enters the burner hearth of pyrolysis oven, due to pyrolysis oven 1 feed end
Relatively discharge end is higher, under gravity, heat carrier can gradually with the revolution of pyrolysis oven 1 from feed end quilt
The discharge end transported, and gradually assemble at end face sieve plate 3, carbon slag is by the through hole quilt on end face sieve plate 3
Discharge pyrolysis oven, and heat carrier needs to be re-delivered to the feed end of pyrolysis oven 1, in order to enter new pyrolysis
Circulation, this utility model central circulation passage 2 is designed by this problem of solution, central circulation passage 2
Go out to be provided with heat carrier collection conduit 4 at end face sieve plate 3, thus heat carrier is collected into central circulation passage
2 rear ends, and it is delivered to front end by central circulation passage 2, then enter heat by the through hole on the sidewall of front end
Solve the feed end position of stove 1.
As in figure 2 it is shown, heat carrier collection conduit 4 be arranged on end face sieve plate 3 towards pyrolysis oven central authorities one
On face, it is used for collecting and can not pass through the heat carrier of through hole on end face sieve plate 3.
Giving two kinds of central circulation channel designs in the present embodiment, described central circulation passage 2 can be direct
Being set to helical duct, the central axis of helical duct is the body centre axis of pyrolysis oven 1, when central authorities follow
When ring passage 2 rotates, heat carrier is positioned at the bottom of helical duct all the time due to gravity such that it is able to
The front end of central circulation passage 2 it is transported to helical duct.
This utility model gives another spiral way, and as shown in Figures 1 and 2, described central authorities follow
Ring passage 2 is cylindrical conduit, and is provided with the spiral shell connecting its two ends on the inwall of described cylindrical conduit
Vane sheet, constitutes spiral path of navigation, thus guides heat carrier screw to feed end.
In the present embodiment, the through hole of described central circulation passage rear end is stretched in one end of heat carrier collection conduit 4
An interior segment distance, as in figure 2 it is shown, for preventing the heat carrier got rid of in central circulation passage 2 from following with central authorities
Ring passage falls in heat carrier collection conduit 4 when rotating again.It is understood that in actual motion process
In, heat carrier, when entering central circulation passage 2, can be got rid of under the influence of centrifugal force and be led at central circulation
On the inwall in road 2, now, the end of heat carrier collection conduit 4 is stretched in central circulation passage 2 certain
After Ju Li, can will effectively stop the backflow of heat carrier.
In this utility model, the quantity of heat carrier collection conduit is at least 2.When heat carrier collection conduit
When quantity is two or more, it is distributed on central circulation channel side wall.As shown in Figures 1 and 2, this reality
Executing example and give 3 heat carrier collection conduit 4, one end connecting central circulation passage 2 of three pipelines exists
The outer wall of central circulation passage 2 goes out the 120 ° of distributions in interval.
In the present embodiment, as in figure 2 it is shown, heat carrier collection conduit 4 is arc pipe, it is from connecting central authorities
When one end of circulation canal 2 extends to the one end away from central circulation passage 2, bending direction and central circulation
The direction of rotation of passage 2 is consistent, and it follows towards central authorities away from the one end open direction of central circulation passage 2
The direction of rotation of ring passage 2.In the present embodiment, the central circulation passage direction of rotation of Fig. 2 is clockwise.
With continued reference to Fig. 2, heat carrier collection conduit 4 is typically pasted away from the one end open of central circulation passage 2
Tightly it is arranged on pyrolysis oven 1 inwall, when heat carrier rotates with pyrolysis oven 1, under the influence of centrifugal force,
Heat carrier 1 can be thrown toward on the inwall of pyrolysis oven 1, is adjacent to opening be arranged on pyrolysis oven 1 inwall and more holds
Easily collecting heat carrier.
In the present embodiment, heat carrier collection conduit 4 arranging some strip holes, described strip hole size is not
More than the clear size of opening on end face sieve plate, the material that heat carrier collection conduit 4 is collected not only includes heat load
Body, also includes the carbon slag that is attached on heat carrier and free carbon slag, for improving cycle efficieny, should try one's best
Carbon slag is avoided again to be transported to the feed end of pyrolysis oven, under centrifugal action, heat carrier collection conduit 4
Some strip holes of upper setting are conducive to again entering the carbon slag adhered on heat carrier and free carbon slag
Burner hearth rear end, is expelled to discharge end by end face sieve plate.In alternate embodiment, above-mentioned strip hole is all right
It is other versions, such as square opening, circular hole or other erose hole.
In the present embodiment, as it is shown in figure 1, the front end of central circulation passage 2 also includes support, with rear end
The end face sieve plate that connected forms dynamic balance, is used for being fixed in pyrolysis oven 1, one end of support with in
Centre circulation canal 2 is fixing to be connected, and the other end can slide on the inwall of pyrolysis oven 1.
The endless form of the pyrolysis installation that this utility model heat carrier recycles has two kinds: 1, central circulation
Passage drives heat carrier collection conduit and end face sieve plate individually rotate or do differential motion with pyrolysis oven, passes through
Heat carrier is got rid of into central circulation passage by the centrifugal force rotated；2, central circulation passage is Tong Bu with pyrolysis oven turns
Dynamic, by the centrifugal force rotated, heat carrier is got rid of into central circulation passage.
This utility model circulating load (circulation rate) can control central circulation passage rotating speed and heat carrier is collected
Number of tubes controls.
Heat carrier is made to be re-delivered to pyrolysis oven feed end by central circulation passage of the present utility model, and can
Control circulating load with the rotating speed according to central circulation passage and heat carrier collection conduit quantity, improve heat
The cycle efficieny of carrier, heat carrier collection conduit is set to arc, and is distributed some strip holes thereon,
Under centrifugal action, heat carrier separates more thorough with carbon slag.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than
It is limited.Although this utility model being described in detail with reference to previous embodiment, this area general
Lead to and skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be repaiied by it
Change, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make phase
The essence answering technical scheme departs from the spirit and scope of this utility model each embodiment technical scheme.
Claims (7)
1. the pyrolysis installation that a heat carrier recycles, it is characterised in that: include pyrolysis oven (1), in
Centre circulation canal (2), end face sieve plate (3) and heat carrier collection conduit (4), wherein,
Pyrolysis oven (1), including feed end and discharge end；
Central circulation passage (2), is positioned at pyrolysis oven (1) internal, and the front end of central circulation passage is arranged on
The feed end of pyrolysis oven (1), rear end is arranged on the discharge end of pyrolysis oven (1), and heat can be carried when rotating by it
Body is transported to front end from rear end, forms stove between central circulation passage (2) outer wall and pyrolysis oven (1) inwall
Thorax, and all having through hole on the sidewall of rear and front end；
End face sieve plate (3), is fixedly installed on the rear end of central circulation passage (2), is provided with through hole,
Carbon slag after described clear size of opening is suitable to material pyrolysis passes through, and is suitable to prevent heat carrier from passing through；
Heat carrier collection conduit (4), one end connects the through hole of described central circulation passage (2) rear end, separately
One end extends in described burner hearth, and described heat carrier collection conduit (4) internal diameter size is suitable to heat carrier and passes through,
And heat carrier collection conduit (4) is arc pipe, it is from connecting one end of central circulation passage (2) to far
When extending from one end of central circulation passage (2), bending direction and the rotation side of central circulation passage (2)
To unanimously, and its away from the one end open direction of central circulation passage (2) towards central circulation passage (2)
Direction of rotation.
2. the pyrolysis installation that heat carrier as claimed in claim 1 recycles, it is characterised in that: described
Central circulation passage (2) is helical duct, and the central axis of helical duct is in the cylinder of pyrolysis oven (1)
Mandrel line.
3. the pyrolysis installation that heat carrier as claimed in claim 1 recycles, it is characterised in that: described
Central circulation passage (2) is cylindrical conduit, and is provided with connection on the inwall of described cylindrical conduit
The helical blade at its two ends, constitutes spiral path of navigation.
4. the pyrolysis installation that heat carrier as claimed in claim 1 recycles, it is characterised in that: heat carries
A segment distance in the through hole of described central circulation passage (2) rear end is stretched in one end of body collection conduit (4).
5. the pyrolysis installation that heat carrier as claimed in claim 1 recycles, it is characterised in that: heat carries
The quantity at least two of body collection conduit (4).
6. the pyrolysis installation that heat carrier as claimed in claim 5 recycles, it is characterised in that: heat carries
When the quantity of body collection conduit (4) is two or more, it is distributed on central circulation passage (2) sidewall.
7. the pyrolysis installation that heat carrier as claimed in claim 1 recycles, it is characterised in that: heat carries
Arranging some strip holes in body collection conduit (4), described strip hole size is not more than end face sieve plate (3)
On clear size of opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620457839.2U CN205784581U (en) | 2016-05-19 | 2016-05-19 | The pyrolysis installation that a kind of heat carrier recycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620457839.2U CN205784581U (en) | 2016-05-19 | 2016-05-19 | The pyrolysis installation that a kind of heat carrier recycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205784581U true CN205784581U (en) | 2016-12-07 |
Family
ID=58119695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620457839.2U Withdrawn - After Issue CN205784581U (en) | 2016-05-19 | 2016-05-19 | The pyrolysis installation that a kind of heat carrier recycles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205784581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841491A (en) * | 2016-05-19 | 2016-08-10 | 湖南万容科技股份有限公司 | Pyrolysis device for cyclic utilization of heat carrier |
-
2016
- 2016-05-19 CN CN201620457839.2U patent/CN205784581U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841491A (en) * | 2016-05-19 | 2016-08-10 | 湖南万容科技股份有限公司 | Pyrolysis device for cyclic utilization of heat carrier |
| CN105841491B (en) * | 2016-05-19 | 2018-02-09 | 湖南万容科技股份有限公司 | The pyrolysis installation that a kind of heat carrier recycles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202072597U (en) | Sludge drying device | |
| CN105131998A (en) | Biomass and coal medium-low temperature pyrolysis quality improving system and technology thereof | |
| CN205784581U (en) | The pyrolysis installation that a kind of heat carrier recycles | |
| CN104017592A (en) | Multitube heating rotary pulverized coal pyrolysis system | |
| CN109081548A (en) | A kind of low temperature eddy flow turntable material desiccation machine | |
| CN201697147U (en) | Non-corrosive dust collection and energy saving chimney | |
| CN108479201A (en) | Liquid phase and/or the equipment of solid formation are isolated from gas gas-phase objects | |
| CN105841491A (en) | Pyrolysis device for cyclic utilization of heat carrier | |
| CN208964782U (en) | A kind of low temperature eddy flow turntable material desiccation machine | |
| CN209188321U (en) | The rotational flow guide device and equipment of liquid phase and/or solid formation are isolated from gas gas-phase objects | |
| CN208541909U (en) | The equipment of liquid phase and/or solid formation is isolated from gas gas-phase objects | |
| CN208541910U (en) | The equipment of liquid phase and/or solid formation is isolated from gas gas-phase objects | |
| CN111117675B (en) | Sectional spiral stirring type biomass pyrolysis liquefaction system | |
| CN205501188U (en) | Pyrolyzer | |
| CN210080343U (en) | Thermal desorption soil repair equipment | |
| CN211147154U (en) | Dewatering and drying device is used in water-soluble fertile production | |
| CN103849409A (en) | Large-scale industrialized renewable resource and biomass milling production process | |
| CN209405708U (en) | A kind of processing film thin film evaporator | |
| CN204779481U (en) | Full -automatic serialization schizolysis refining equipment that enstrophe was moved rotates outward | |
| CN203792556U (en) | Large-scale industrialized renewable resource and biomass mixing production equipment | |
| CN220507526U (en) | Regeneration drying device and drying roller | |
| CN113860698B (en) | Sludge drying machine | |
| CN104864688B (en) | Large multi-tube diffusion airflow rotary dryer and drying method | |
| CN212294242U (en) | Double-layer drying roller for hot mix plant recycled asphalt mixture | |
| CN209180918U (en) | A kind of novel dust removing formula biologic grain combustion apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20180209 |
|
| AV01 | Patent right actively abandoned |