CN208320293U - The boring atomizing dust removing device of core drill - Google Patents
The boring atomizing dust removing device of core drill Download PDFInfo
- Publication number
- CN208320293U CN208320293U CN201820631928.3U CN201820631928U CN208320293U CN 208320293 U CN208320293 U CN 208320293U CN 201820631928 U CN201820631928 U CN 201820631928U CN 208320293 U CN208320293 U CN 208320293U
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- China
- Prior art keywords
- boring
- level
- valve
- pulverizer plate
- exhalant canal
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- 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.)
- Expired - Fee Related
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- 239000000428 dust Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 108091006146 Channels Proteins 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 102000010637 Aquaporins Human genes 0.000 claims abstract description 15
- 108010063290 Aquaporins Proteins 0.000 claims abstract description 15
- 238000000889 atomisation Methods 0.000 claims abstract description 15
- 238000002663 nebulization Methods 0.000 claims abstract description 14
- 238000012423 maintenance Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000000151 deposition Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 102000012002 Aquaporin 4 Human genes 0.000 description 6
- 108010036280 Aquaporin 4 Proteins 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of boring atomizing dust removing device of core drill, including forced air supply mechanism, without pressure water supply mechanism and atomized dust settling device；Atomized dust settling device includes ontology, body interior is equipped with nebulization channel, level-one pulverizer plate and second level pulverizer plate are successively fixed in nebulization channel from back to front, and on level-one pulverizer plate along its circumferential direction be equipped with uniformly distributed airflow channel, level-one pulverizer plate center be equipped with exhalant canal, airflow channel internal diameter be greater than exhalant canal internal diameter, second level pulverizer plate is equipped with uniformly distributed atomization through-hole and is atomized internal diameter of the internal diameter less than exhalant canal of through-hole, and the position that body interior corresponds to exhalant canal is additionally provided with into aquaporin.The boring atomizing dust removing device structure of this core drill is simple, easy for installation, it can be realized realization under the premise of flutterring dirt depositing dust in boring procedure to economize on resources, and be convenient to clean using the soil that the drilling device of the atomizing dust removing device is discharged, it drills especially suitable for road surface.
Description
Technical field
It is specifically a kind of to be suitable for drilling using hollow drill head the utility model relates to a kind of atomizing dust removing device
When the atomizing dust removing device that uses, belong to pavement construction technical field.
Background technique
In highway, highway, the fence upright installation for handing over peace engineering, and in order to accelerate the inside to drain, on road
It is one of them extremely important and crucial operating procedure that bore operation is carried out on face, directly influences the construction matter in later period
Amount.In addition, the reparation destroyed in road construction maintenance for road foundation defect and base, carries out punching slip casting on road
It carries out roadbed and base's no-dig technique is reinforced and conserved, can avoid traditional road surface and dig the big disadvantage of road pavement structural perturbation, have
There is the advantage of quick open to traffic.
Equipment currently used for road surface punching is usually Handheld rig or various automatic drilling machines, and the two is being punched
A large amount of dust can be generated in the process, be detrimental to health and pollute air.In order to realize depositing dust, occur in the prior art
The mode for filling the water punching injects the water in hollow drill that is, in boring procedure by the way of filling the water into core drill drilling rod
On the one hand it may be implemented to flutter dirt depositing dust, on the other hand may be implemented to cool down to hollow drill, prevent it from rubbing because of long-time
It works and burns.Although depositing dust may be implemented in the mode of this water filling punching, but there is also following defects:
1, the water injected in hollow drill is continuous, therefore not only needs pressure water pump to support but also need pressure water
Pump continues working, and easily causes the wasting of resources；
2, just because of the water in injection hollow drill is continuous, therefore the soil that water can follow rotary digging to go out is discharged, and arranges
Soil out was in wet sposh shape, and ground easy to pollute is not easily cleaned.
Summary of the invention
In view of the above-mentioned problems, the utility model provides a kind of boring atomizing dust removing device of core drill, structure is simple, installs
Conveniently, it is suitable for all kinds of drilling devices, can be realized realization under the premise of flutterring dirt depositing dust in boring procedure and economize on resources, and make
It is convenient to clean with the soil that the drilling device of the atomizing dust removing device is discharged, is drilled especially suitable for road surface.
To achieve the above object, the boring atomizing dust removing device of this core drill includes forced air supply mechanism, without pressure water supplying machine
Structure and atomized dust settling device；
The atomized dust settling device includes ontology, and body interior is equipped with the nebulization channel for running through ontology along the longitudinal direction, mist
Change and be successively fixed with level-one pulverizer plate and second level pulverizer plate in channel from back to front, the rear end of nebulization channel passes through air inlet gas circuit
Pipeline is connect with forced air supply mechanism, the sky that the front end of nebulization channel passes through outlet gas circuit pipeline and the hollow drill of drilling device
The connection of heart channel；It is equipped with uniformly distributed airflow channel along its circumferential direction on level-one pulverizer plate, the centre bit of level-one pulverizer plate installs
There is exhalant canal, and the internal diameter of airflow channel is greater than the internal diameter of exhalant canal；Second level pulverizer plate is equipped with uniformly distributed
It is atomized through-hole and is atomized internal diameter of the internal diameter less than exhalant canal of through-hole；Body interior corresponds to the position of exhalant canal
It sets and is additionally provided with the one end for entering aquaporin into aquaporin through level-one pulverizer plate and is penetrated through with exhalant canal, enter the another of aquaporin
End is sequentially installed with inlet non return check valve and automatic stop valve, and automatic stop valve includes input, output end and cut-off control valve core,
The input terminal of automatic stop valve is connect by water route pipeline with without pressure water supply mechanism, the output end and one-way check of automatic stop valve
The input terminal of valve connects, and the cut-off control valve core of automatic stop valve controls hand by the rod boring of bindiny mechanism and drilling device
Handle connection, can control the blocking action of cut-off control valve core by the movement that rod boring controls handle.
As further improvement of the utility model scheme, level-one is run through along inclination forward direction in the one end for entering aquaporin
Pulverizer plate.
As further improvement of the utility model scheme, the rear end of exhalant canal is equipped with to be fixedly connected with level-one pulverizer plate
Water outlet spray head.
As further improvement of the utility model scheme, the front end for being atomized through-hole is equipped with taper groove.
As further improvement of the utility model scheme, waterway tube road is additionally provided with Water flow adjusting valve, air inlet gas circuit
Pipeline is equipped with air-flow adjustable valve.
As a kind of embodiment of the utility model automatic stop valve blocking action control, the cut-off control of automatic stop valve
Reset spring is equipped in spool processed, the cut-off control valve core of automatic stop valve passes through the rod boring of traction steel wire and drilling device
Control handle connection, traction steel wire one end fixes and be wrapped in the rotary shaft of rod boring control handle, the other end and automatic
The cut-off control valve core of shut-off valve connects.
As a kind of embodiment of the utility model automatic stop valve blocking action control, the cut-off control of automatic stop valve
Spool processed is Electromagnetic Control spool, and automatic stop valve further includes electric-controlled parts, and electric-controlled parts include controller, rotation angle sensor
Device, electric power loop, rotation angle feedback loop and shut-off valve control loop, angular sensor are mounted on rod boring control
In the rotary shaft of handle, controller is electrically connected with the cut-off control valve core of angular sensor and automatic stop valve respectively.
As further improvement of the utility model scheme, enter the horizontal segment and vertical section that aquaporin includes perforation connection,
Inlet non return check valve and automatic stop valve are successively installed in the end of horizontal segment, the top of vertical section through level-one pulverizer plate and with water outlet
Channel perforation, the bottom end of vertical section extend downwardly through the bottom end setting maintenance capping of ontology and vertical section.
Compared with prior art, in the nebulization channel of the atomized dust settling device of the boring atomizing dust removing device of this core drill due to
It is successively fixed with level-one pulverizer plate and second level pulverizer plate from back to front, and is equipped with and is evenly distributed with along its circumferential direction on level-one pulverizer plate
Airflow channel, level-one pulverizer plate center be equipped with exhalant canal, the internal diameter of airflow channel is greater than exhalant canal
Internal diameter, second level pulverizer plate is equipped with uniformly distributed atomization through-hole and the internal diameter of atomization through-hole is less than the interior of exhalant canal
Diameter size, the pressed gas that the position that body interior corresponds to exhalant canal is additionally provided with into aquaporin, therefore passes through through airflow channel
Flow velocity be greater than the flow velocity of pressed gas passed through through exhalant canal, and then generate negative pressure pressure in the region of exhalant canal front end
Difference, under the action of negative pressure pressure difference, it is no pressure water supply mechanism in water be gradually adsorbed, entered aquaporin enter exhalant canal from
The front end of exhalant canal is precipitated, and the water of precipitation is fog-like under the drive of pressed gas, by the atomization through-hole of second level pulverizer plate
It is further refined into the depositing dust in the hollow passageway realization boring procedure of the hollow drill of drilling device, due to the drop of atomization
The soil that dirt water goes out rotary digging is in moisture state rather than excessively wet sposh state, therefore is convenient to clean；Due to being inhaled using negative pressure
Attached effect absorption water is not required to that pressure water source additionally is arranged, therefore may be implemented to economize on resources；Operator can also pass through operation
Drilling rod not spraying controllable when rod boring controls drilling rod when handle drives automatic cut-off valve events to realize drilling spraying, non-drilled
Effect, structure is simple, it is easy for installation, be suitable for all kinds of drilling devices, drill especially suitable for road surface.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the B direction view of Fig. 1.
In figure: 1, ontology, 2, level-one pulverizer plate, 21, airflow channel, 22, exhalant canal, 3, second level pulverizer plate, 31, atomization
Through-hole, 4, enter aquaporin, 5, inlet non return check valve, 6, automatic stop valve.
Specific embodiment
The utility model is described further with reference to the accompanying drawing and (is retouched below using the left direction of Fig. 1 as rear
It states).
As shown in Figure 1, the boring atomizing dust removing device of this core drill includes forced air supply mechanism, without pressure water supply mechanism and mist
Change dust settler.
The atomized dust settling device includes ontology 1, and the nebulization channel for running through ontology 1 along the longitudinal direction is equipped with inside ontology 1,
Level-one pulverizer plate 2 and second level pulverizer plate 3 are successively fixed in nebulization channel from back to front, the rear end of nebulization channel passes through air inlet
Gas circuit pipeline is connect with forced air supply mechanism, and the front end of nebulization channel passes through the hollow drill of outlet gas circuit pipeline and drilling device
Hollow passageway connection；As shown in Fig. 2, being equipped with uniformly distributed airflow channel 21, level-one mist along its circumferential direction on level-one pulverizer plate 2
The center for changing plate 2 is equipped with exhalant canal 22, and the internal diameter of airflow channel 21 is greater than the internal diameter of exhalant canal 22；
As shown in figure 3, second level pulverizer plate 3 is equipped with uniformly distributed atomization through-hole 31 and the internal diameter of atomization through-hole 31 is logical less than water outlet
The internal diameter in road 22；The position that exhalant canal 22 is corresponded to inside ontology 1, which is additionally provided with, to be entered one end of aquaporin-4 into aquaporin-4 and passes through
It wears level-one pulverizer plate 2 and is penetrated through with exhalant canal 22, the other end for entering aquaporin-4 is sequentially installed with inlet non return check valve 5 and automatic
Shut-off valve 6, automatic stop valve 6 include input, output end and cut-off control valve core, and the input terminal of automatic stop valve 6 passes through water
Road pipeline is connect with without pressure water supply mechanism, and the output end of automatic stop valve 6 is connect with the input terminal of inlet non return check valve 5, automatic to cut
Only the cut-off control valve core of valve 6 controls handle connection by the rod boring of bindiny mechanism and drilling device, passes through rod boring
The movement of control handle can control the blocking action of cut-off control valve core.
The boring atomizing dust removing device of this core drill is set in use, the ontology 1 of atomized dust settling device is fixedly mounted on drilling
It is standby upper, forced air supply mechanism, the hollow drill without pressure water supply mechanism and drilling device, starting pressure are then sequentially connected by pipeline
Power gas supply mechanism, pressed gas enter nebulization channel through air inlet gas circuit pipeline and are successively atomized by level-one pulverizer plate 2 and second level
Plate 3 finally enters the hollow passageway of the hollow drill of drilling device through outlet gas circuit pipeline, and pressed gas passes through airflow channel 21
When with exhalant canal 22 by level-one pulverizer plate 2, since the internal diameter of airflow channel 21 is greater than the internal diameter ruler of exhalant canal 22
It is very little, therefore the flow velocity of the pressed gas passed through through airflow channel 21 is greater than the flow velocity of the pressed gas passed through through exhalant canal 22,
And then negative pressure pressure difference is generated in the region of 22 front end of exhalant canal, under the action of negative pressure pressure difference, in no pressure water supply mechanism
Water be gradually adsorbed, enter through automatic stop valve 6 and inlet non return check valve 5 aquaporin-4, eventually enter into exhalant canal 22 from go out
The front end of aquaporin 22 is precipitated, and the water of precipitation is fog-like under the drive of pressed gas, by the atomization through-hole of second level pulverizer plate 3
31 are further refined the hollow passageway into the hollow drill of drilling device, and then realize the depositing dust in boring procedure.Operation
Personnel's depression rod boring controls handle and drives automatic stop valve 6 during rod boring in the open state, when complete
Rod boring control handle during driving drilling rod to lift at lift operation rod boring control handle on operator after drilling
Drilling rod is spraying when controlling automatic stop valve 6 by bindiny mechanism to be in close state, and then realizing drilling, non-drilled when drilling rod not
Spraying controllable effect.The soil that the dustfall water of atomization goes out rotary digging is in moisture state rather than excessively wet sposh state, therefore
It is convenient to clean.Inlet non return check valve 5 can prevent water from reversely floing back towards without pressure water supply mechanism.
In order to realize that the better outlet effect of exhalant canal 22 enters water as further improvement of the utility model scheme
Level-one pulverizer plate 2 is run through along inclination forward direction in the one end in channel 4.It is tilted towards the precipitation that water of being more convenient for is arranged in airflow direction.
In order to realize better level-one atomizing effect, as further improvement of the utility model scheme, exhalant canal 22
Rear end be equipped with the Water outlet spray head that is fixedly connected with level-one pulverizer plate 2.
In order to realize better second level atomizing effect, as further improvement of the utility model scheme, it is atomized through-hole 31
Front end be equipped with taper groove.
Air inflow and inflow are controlled according to the size of drilling in order to realize, as further improvement of the utility model side
Case, waterway tube road are additionally provided with Water flow adjusting valve, and air inlet gas circuit pipe road is equipped with air-flow adjustable valve.
As a kind of embodiment of 6 blocking action of the utility model automatic stop valve control, the cut-off of automatic stop valve 6
Reset spring is equipped in control valve core, the cut-off control valve core of automatic stop valve 6 passes through the drilling rod of traction steel wire and drilling device
Drilling control handle connection, traction steel wire one end fix and be wrapped in rod boring control handle rotary shaft on, the other end with
The cut-off control valve core of automatic stop valve 6 connects.Rotary shaft rotation drives traction when pushing or upper lift rod boring control handle
Steel wire pulls or loosens the cut-off control valve core movement of automatic stop valve 6, and then realizes unlatching or the pass of control automatic stop valve 6
It closes.
As a kind of embodiment of 6 blocking action of the utility model automatic stop valve control, the cut-off of automatic stop valve 6
Control valve core is Electromagnetic Control spool, and automatic stop valve 6 further includes electric-controlled parts, and electric-controlled parts include controller, rotation angle
Sensor, electric power loop, rotation angle feedback loop and shut-off valve control loop, angular sensor are mounted on rod boring
In the rotary shaft for controlling handle, cut-off control valve core of the controller respectively with angular sensor and automatic stop valve 6 is electrically connected
It connects.Controller controls automatic cut-off by the rotation angle that the rod boring that angular sensor is fed back controls rotatable handle axis
Valve 6 opens or closes.
For the ease of overhauling, preventing because resulting in blockage damage in water there are impurity, as further changing for the utility model
Into scheme, entering aquaporin-4 includes that inlet non return check valve 5 is successively installed in the horizontal segment of perforation connection and vertical section, the end of horizontal segment
With automatic stop valve 6, the top of vertical section is penetrated through through level-one pulverizer plate 2 and with exhalant canal 22, and the bottom end of vertical section is downward
Extend through the bottom end setting maintenance capping of ontology 1 and vertical section, that is, the bottom end of vertical section is process maintenance hole, when maintenance
Dismountable maintenance capping carries out cleaning and maintenance to aquaporin-4 is entered.
The boring atomizing dust removing device of this core drill is due to using negative-pressure adsorption effect absorption water, being not required to that pressure additionally is arranged
Water source, therefore may be implemented to economize on resources；Due to the dustfall water of atomization make rotary digging go out soil in moisture state rather than it is excessively wet
Sposh state, therefore be convenient to clean；Operator can also control handle by operation rod boring and drive automatic stop valve 6
Drilling rod is spraying when drilling is realized in movement, non-drilled when the not spraying controllable effect of drilling rod, structure is simple, it is easy for installation, be suitable for
All kinds of drilling devices drill especially suitable for road surface.
Claims (8)
1. a kind of boring atomizing dust removing device of core drill, including forced air supply mechanism, without pressure water supply mechanism and atomized dust settling device；
It is characterized in that,
The atomized dust settling device includes ontology (1), and the atomization being equipped with inside ontology (1) along the longitudinal direction through ontology (1) is logical
Road is successively fixed with level-one pulverizer plate (2) and second level pulverizer plate (3), the rear end of nebulization channel in nebulization channel from back to front
It is connect by air inlet gas circuit pipeline with forced air supply mechanism, the front end of nebulization channel passes through outlet gas circuit pipeline and drilling device
The hollow passageway of hollow drill connects；Uniformly distributed airflow channel (21), level-one are equipped with along its circumferential direction on level-one pulverizer plate (2)
The center of pulverizer plate (2) is equipped with exhalant canal (22), and the internal diameter of airflow channel (21) is greater than exhalant canal (22)
Internal diameter；Second level pulverizer plate (3) is equipped with uniformly distributed atomization through-hole (31) and the internal diameter of atomization through-hole (31) is less than
The internal diameter of exhalant canal (22)；The position of corresponding exhalant canal (22) is additionally provided with into aquaporin (4) inside ontology (1), is entered
One end of aquaporin (4) is penetrated through through level-one pulverizer plate (2) and with exhalant canal (22), enters the other end of aquaporin (4) successively
Inlet non return check valve (5) and automatic stop valve (6) are installed, automatic stop valve (6) includes input, output end and cut-off control valve
The input terminal of core, automatic stop valve (6) is connect by water route pipeline with without pressure water supply mechanism, the output end of automatic stop valve (6)
It is connect with the input terminal of inlet non return check valve (5), the cut-off control valve core of automatic stop valve (6) passes through bindiny mechanism and drilling device
Rod boring control handle connection, by rod boring control handle movement can control cut-off control valve core cut-off move
Make.
2. the boring atomizing dust removing device of core drill according to claim 1, which is characterized in that enter the one of aquaporin (4)
Level-one pulverizer plate (2) are run through along inclination forward direction in end.
3. the boring atomizing dust removing device of core drill according to claim 1, which is characterized in that after exhalant canal (22)
End is equipped with the Water outlet spray head being fixedly connected with level-one pulverizer plate (2).
4. the boring atomizing dust removing device of core drill according to claim 1, which is characterized in that before atomization through-hole (31)
End is equipped with taper groove.
5. according to claim 1 to the boring atomizing dust removing device of core drill described in 4 any claims, which is characterized in that
Waterway tube road is additionally provided with Water flow adjusting valve, and air inlet gas circuit pipe road is equipped with air-flow adjustable valve.
6. according to claim 1 to the boring atomizing dust removing device of core drill described in 4 any claims, which is characterized in that
Reset spring is equipped in the cut-off control valve core of automatic stop valve (6), the cut-off control valve core of automatic stop valve (6) passes through traction
The rod boring of steel wire and drilling device controls handle connection, and traction steel wire one end is fixed and is wrapped in rod boring control handle
Rotary shaft on, the cut-off control valve core of the other end and automatic stop valve (6) connects.
7. according to claim 1 to the boring atomizing dust removing device of core drill described in 4 any claims, which is characterized in that
The cut-off control valve core of automatic stop valve (6) is Electromagnetic Control spool, and automatic stop valve (6) further includes electric-controlled parts, electric control part
Part includes controller, angular sensor, electric power loop, rotation angle feedback loop and shut-off valve control loop, rotation angle
Degree sensor be mounted on rod boring control handle rotary shaft on, controller respectively with angular sensor and automatic cut-off
The cut-off control valve core of valve (6) is electrically connected.
8. according to claim 1 to the boring atomizing dust removing device of core drill described in 4 any claims, which is characterized in that
Enter the horizontal segment and vertical section that aquaporin (4) includes perforation connection, inlet non return check valve (5) and oneself are successively installed in the end of horizontal segment
Dynamic shut-off valve (6), the top of vertical section are penetrated through through level-one pulverizer plate (2) and with exhalant canal (22), the bottom end of vertical section to
Under extend through the bottom end setting maintenance capping of ontology (1) and vertical section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820631928.3U CN208320293U (en) | 2018-04-28 | 2018-04-28 | The boring atomizing dust removing device of core drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820631928.3U CN208320293U (en) | 2018-04-28 | 2018-04-28 | The boring atomizing dust removing device of core drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208320293U true CN208320293U (en) | 2019-01-04 |
Family
ID=64779491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820631928.3U Expired - Fee Related CN208320293U (en) | 2018-04-28 | 2018-04-28 | The boring atomizing dust removing device of core drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208320293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354614A (en) * | 2019-07-24 | 2019-10-22 | 山东钢铁集团有限公司 | A kind of rotary-atomizing bell-type atomizing lance device and application method |
-
2018
- 2018-04-28 CN CN201820631928.3U patent/CN208320293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354614A (en) * | 2019-07-24 | 2019-10-22 | 山东钢铁集团有限公司 | A kind of rotary-atomizing bell-type atomizing lance device and application method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |