CN109500021A - Spray chamber cleaner for inner wall and its cleaning method - Google Patents
Spray chamber cleaner for inner wall and its cleaning method Download PDFInfo
- Publication number
- CN109500021A CN109500021A CN201811408082.8A CN201811408082A CN109500021A CN 109500021 A CN109500021 A CN 109500021A CN 201811408082 A CN201811408082 A CN 201811408082A CN 109500021 A CN109500021 A CN 109500021A
- Authority
- CN
- China
- Prior art keywords
- spray chamber
- wall
- rotary drive
- elevating mechanism
- drive mechanism
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0808—Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/46—Inspecting cleaned containers for cleanliness
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a kind of spray chamber cleaner for inner wall and its cleaning methods, the spray chamber cleaner for inner wall includes elevating mechanism, rotary drive mechanism and revolving part, one end of the rotary drive mechanism is connected to the top of the elevating mechanism, and the other end of the rotary drive mechanism is connected to the revolving part and for driving the revolving part to rotate.Cleaning brush the following steps are included: step 1, be installed on the revolving part by the cleaning method；Step 2, the underface that spray chamber cleaner for inner wall is placed on to spray chamber, open the elevating mechanism and the rotary drive mechanism；Step 3 closes the elevating mechanism and the rotary drive mechanism, removes the cleaning brush, adsorption piece is installed on the revolving part；Step 4 opens the elevating mechanism and the rotary drive mechanism.The present invention realizes that automation is cleaned, also releasable human resources, meanwhile, it can significantly shorten scavenging period, improve p owder production efficiency.
Description
Technical field
The present invention relates to a kind of powder by atomization technical field, in particular to a kind of spray chamber cleaner for inner wall and its cleaning
Method.
Background technique
The fields such as thermal spraying, increasing material manufacturing (being commonly called as 3D printing) can use a large amount of metal or alloy globular powder raw material,
Such main technology of preparing of metal or alloy powder raw material is powder by atomization technology.Powder by atomization principle is quickly to move
Atomizing medium impacts or metal or alloy is otherwise broken for fine drop, is followed by condensed into solid powder, if needed
Want powder be it is spherical, also need guarantee drop condensed after its surface tension sufficiently acts on nodularization.Powder by atomization technology can specifically divide
Are as follows: water atomization pulverization, centrifugal atomizing powder, gas-atomized powder, ultrasonic atomization and plasma atomization etc..Due to production efficiency
The advantages that high, at low cost, gas-atomized powder are the powder by atomization technologies of mainstream.
Gas-atomized powder equipment is mainly made of working chamber, spray chamber and powder collection system three parts, and working chamber is negative
Duty fusing metal or alloy base material, spray chamber mainly use kinetic energy gas to carry out as atomizing medium to metal or alloy melt
Broken, the air pressure of Conventional aerosol powder is about in 3-10Mpa, and atomization air flow flow velocity is about in 300-600m/s.Dynamic by height
After energy gas impact grinding, in order to guarantee finally become spherical-like morphology, gas-atomized powder equipment needs metal or alloy drop
Increase spray chamber diameter and length.According to gas-atomized powder equipment incomplete statistics on the market, generally in 5-25kg magnitude
Equipment, spray chamber diameter is about in 0.8-1.2m, and length is about in 2-3m, and the total height of equipment is about in 5-7m；If it is 25-
The equipment of 100kg magnitude, spray chamber is about in 1.2-1.5m, and length is about in 3-5m, and the total height of equipment is about in 7-10m；Such as
Fruit is more than the equipment of 100kg magnitude, and spray chamber diameter can be more than even 2m, and length can be more than 5m, and the total height of equipment is more than
10m.Currently, as increasing material manufacturing market graduallys mature, gradually for high-purity, the fine alloy powder demand of high sphericity
It increases, it is reported that domestic gas-atomized powder number of devices has successfully built 500kg magnitude equipment while rising, and foreign countries are
There is a tonne gas-atomized powder production line.
The promotion of flour production line magnitude, which also needs the auxiliary links such as equipment cleaning to keep up with, could improve production efficiency, because of city
Demand to material be not it is single, carry out having had to complete cleaning process between powder processed in the alloy different to ingredient,
Not so ingredient pollution can be generated, powder material quality is influenced.Even the identical alloy of ingredient has also needed after more furnace powder
Whole cleaning, this is because inner wall can adsorb many ultra-micro powders after more furnace powder, such ultra-micro powder is taken out very before will affect powder processed
Empty efficiency.Currently gas-atomized powder equipment inner wall cleaning method is mainly the side cleaned using internal alcohol of manually offering sb. a chance to remedy a fault gracefully in the industry
Formula, using manual wipping be because gas-atomized powder equipment belong to vacuum equipment, in order to guarantee its leakproofness equipment be not suitable for into
Row washing is rinsed, but employee is placed under attritive powder environment, itself can generate harm to human body, in addition with aerosolization system
Powder equipment magnitude rises, and equipment atomization building volume is bigger, and the low efficiency problem manually cleaned gradually highlights.It is computed, normally
One furnace of 25kg magnitude gas-atomized powder needs 2h, but equipment cleaning at least needs 8h, i.e. gas-atomized powder equipment inner wall cleaning is asked
Topic just annoyings milling efficiency, and industry urgently needs the automated cleaning equipment that a kind of liberation is artificial while improving efficiency.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome existing gas-atomized powder equipment inner wall cleaning method to human body
Harm is generated, the defects of low efficiency, provides a kind of spray chamber cleaner for inner wall and its cleaning method.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of spray chamber cleaner for inner wall, it is characterized in that comprising elevating mechanism, rotary drive mechanism and rotation
Part, one end of the rotary drive mechanism are connected to the top of the elevating mechanism, and the other end of the rotary drive mechanism connects
It is connected to the revolving part and for driving the revolving part to rotate.
In the present solution, form using the above structure, realizes automation cleaning by elevating mechanism and rotary drive mechanism,
It effectively prevents personnel's close contact attritive powder and causes respiratory disease, also releasable human resources.Meanwhile elevating mechanism
It can be operated simultaneously with rotary drive mechanism, can significantly shorten scavenging period, improve p owder production efficiency.
Preferably, the spray chamber cleaner for inner wall further includes having walking mechanism, the bottom connection of the elevating mechanism
In in the walking mechanism.
In the present solution, form using the above structure, the movement of elevating mechanism is able to drive by walking mechanism, so that mist
It is more flexible to change the movement of chamber interior walls cleaning device, is convenient for storage, and space occupied is small.
Preferably, the elevating mechanism includes elevator and mounting base, the bottom of the elevator is connected to the row
Mechanism is walked, the mounting base is connected at the top of the elevator, the rotary drive mechanism is connected in the mounting base.
Preferably, the elevating mechanism further includes finite place piece, the both ends of the locating part are connected to the walking
Mechanism and the mounting base.
In the present solution, form using the above structure, the maximum height of mounting base rising can be limited by locating part, from
And realize revolving part reciprocal lifting moving within a certain height.
Preferably, the rotary drive mechanism includes rotating electric machine and bracket, the bracket is connected to the elevator
The top of structure, the rotating electric machine are connected in the bracket, and the rotor of the rotating electric machine is connected to the revolving part.
Preferably, the revolving part is rotating disk, the outer peripheral surface of the rotating disk is equipped with annular groove, and the annular is recessed
Slot is recessed inwardly along the radial direction of the rotating disk.
In the present solution, form using the above structure, is convenient to cleaning brush and connects with the installation of adsorption piece, and connect jail
Gu.
Preferably, the spray chamber cleaner for inner wall further includes having supporting plate, the supporting plate is connected to the elevating mechanism；
Alternatively, the supporting plate is connected to the rotary drive mechanism.
A kind of spray chamber inner wall washing method, it is characterized in that, spray chamber cleaner for inner wall as described above is utilized,
The cleaning method the following steps are included:
Cleaning brush is installed on the revolving part by step 1；
Step 2, the underface that spray chamber cleaner for inner wall is placed on to spray chamber open the elevating mechanism and described
Rotary drive mechanism；
Step 3 closes the elevating mechanism and the rotary drive mechanism, removes the cleaning brush, adsorption piece is installed
In on the revolving part；
Step 4 opens the elevating mechanism and the rotary drive mechanism.
It is cleaned thoroughly in the present solution, being not only able to guarantee, meanwhile, cleaning contact area is big, and cleaning efficiency is high, can be significant
Shorten scavenging period, improves p owder production efficiency.And it effectively prevents personnel's close contact attritive powder and causes respiratory tract disease
Disease, also releasable human resources.
Preferably, include checking procedure after the step 4, the checking procedure specifically includes the following steps:
The elevator is opened on the rotary drive mechanism or the elevating mechanism in step 5, reviewer station
Structure；
Whether the inner wall washing that step 6, the reviewer detect the spray chamber is qualified, if qualified, completes clear
Work is washed, if unqualified, repeating said steps 1 to the step 4.
Preferably, in step 3, the adsorption piece is containing spirituous sponge.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that:
Spray chamber cleaner for inner wall of the invention and its cleaning method are realized by elevating mechanism and rotary drive mechanism
Automation cleaning, effectively prevent personnel's close contact attritive powder cause respiratory disease, also releasable human resources, together
When, it can significantly shorten scavenging period, improve p owder production efficiency.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the spray chamber cleaner for inner wall of the embodiment of the present invention when in use.
Fig. 2 is the structural schematic diagram of the spray chamber cleaner for inner wall of the embodiment of the present invention.
Fig. 3 is another structural schematic diagram of the spray chamber cleaner for inner wall of the embodiment of the present invention.
Description of symbols:
Elevating mechanism 1
Elevator 11
Mounting base 12
Locating part 13
Rotary drive mechanism 2
Rotating electric machine 21
Bracket 22
Revolving part 3
Annular groove 31
Walking mechanism 4
Spray chamber 10
Specific embodiment
Illustrate below by the mode of embodiment and completely the present invention in conjunction with attached drawing to become apparent from, but therefore not incite somebody to action this
It invents among the scope of embodiments being limited in.
As shown in Figure 1, Figure 2 and Figure 3, the spray chamber cleaner for inner wall of the embodiment of the present invention includes elevating mechanism 1, rotation
Driving mechanism 2 and revolving part 3, one end of rotary drive mechanism 2 are connected to the top of elevating mechanism 1, rotary drive mechanism 2 it is another
One end is connected to revolving part 3 and for driving revolving part 3 to rotate.Elevating mechanism 1 is for driving the lifting of rotary drive mechanism 2 to move
It is dynamic, it will to drive revolving part 3 also to follow lifting moving, rotary drive mechanism 2 will drive revolving part 3 to rotate, and enable revolving part 3
Enough rotates and move up and down to realize the inner wall washing operation to spray chamber 10.It is real by elevating mechanism 1 and rotary drive mechanism 2
Now automation cleaning effectively prevents personnel's close contact attritive powder and causes respiratory disease, also releasable human resources.
Meanwhile elevating mechanism 1 and rotary drive mechanism 2 can operate simultaneously, can significantly shorten scavenging period, improve p owder production efficiency.
Spray chamber cleaner for inner wall can also include walking mechanism 4, and the bottom of elevating mechanism 1 is connected to walking mechanism
On 4.The movement of elevating mechanism 1 is able to drive by walking mechanism 4, so that the movement of spray chamber cleaner for inner wall is more flexible,
Convenient for storage, and space occupied is small.
Elevating mechanism 1 includes elevator 11 and mounting base 12, and the bottom of elevator 11 is connected to walking mechanism 4, lifting
The top of machine 11 is connected to mounting base 12, and rotary drive mechanism 2 is connected in mounting base 12.It is driven by mounting base 12 convenient for rotation
The installation of motivation structure 2 connects, wherein elevator 11 can be hydraulic elevator.
Elevating mechanism 1 can also include finite place piece 13, and the both ends of locating part 13 are connected to walking mechanism 4 and installation
Seat 12.Locating part 13 plays restriction effect, the maximum height of the rising of mounting base 12 can be limited by locating part 13, to realize
The reciprocal lifting moving within a certain height of revolving part 3.Wherein, locating part 13 can be belt.
Rotary drive mechanism 2 includes rotating electric machine 21 and bracket 22, and bracket 22 is connected to the top of elevating mechanism 1, rotation
Rotating motor 21 is connected in bracket 22, and the rotor of rotating electric machine 21 is connected to revolving part 3.Bracket 22 is mounted on mounting base 12
On, rotating electric machine 21 is connected to revolving part 3 and for driving revolving part 3 to rotate, and rotating electric machine 21 is fixed on bracket 22, bracket
22 are used to support rotating electric machine 21 and revolving part 3, easy for installation, and structure is simple.Wherein, bracket 22 can be frame structure,
There is threaded hole, rotating electric machine 21 is connected to threaded hole by screw nut, realizes rotating electric machine 21 and bracket 22 on bracket 22
Between it is detachably connected.
Revolving part 3 can be rotating disk, can be equipped with annular groove 31 on the outer peripheral surface of rotating disk, annular groove 31 is along rotation
The radial direction of turntable is recessed inwardly.It is closely connected between rotating disk and rotating electric machine 21, band-like hairbrush and shell-like sponge
To be sheathed on rotating disk, specially band-like hairbrush is fastened in annular groove 31.It is convenient to band-like hairbrush or shell-like sponge
Connection, and be connected firmly, it is not easily to fall off in cleaning.Wherein, the shape of the cross section of annular groove 31 is in I-shaped.Revolving part
3 shape is not limited to discoid, or centre is strip, and both ends are arc-shaped, as long as the shape of revolving part 3 is rotating
When it is rounded can realize to atomization chamber interior walls cleaning.
Spray chamber cleaner for inner wall needs the inner wall to spray chamber 10 to detect after cleaning is completed, and examines inner wall
Cleaning effect, reviewer can directly both feet pass through revolving part 3 and stand on bracket 22, reviewer can also will rotate
On bracket 22, reviewer can also tear revolving part 3 and rotary drive mechanism 2 open at station after part 3 and the disassembly of rotating electric machine 21
Station is in mounting base 12 after unloading.Spray chamber cleaner for inner wall can also include supporting plate (not shown), and supporting plate can be with
It is connected to elevating mechanism 1, supporting plate also can connect in rotary drive mechanism 2.Reviewer can stand when examining cleaning effect
It stands on supporting plate, is detected convenient for the standing of reviewer.
The embodiment of the present invention also discloses a kind of spray chamber inner wall washing method, which utilizes
As described above spray chamber cleaner for inner wall carries out washing and cleaning operation, the cleaning method the following steps are included:
Cleaning brush is installed on revolving part 3 by step 1.
Before this step, it needs to go forward side by side to the installation connection between elevating mechanism 1, rotary drive mechanism 2 and revolving part 3
Cleaning brush, is then mounted at the annular groove 31 on revolving part 3 by row debugging.
Step 2, the underface that spray chamber cleaner for inner wall is placed on to spray chamber 10 open elevating mechanism 1 and rotation
Driving mechanism 2.
In this step, spray chamber cleaner for inner wall is moved to the underface of spray chamber 10 and is fixed on spray chamber 10
Underface, open simultaneously elevating mechanism 1 and rotary drive mechanism 2, revolving part 3 will rotate and go up and down washing and cleaning operation, cleaning brush
The attritive powder for hanging over 10 inner wall of spray chamber is slightly scrubbed, first of cleaning process is completed.
Step 3 closes elevating mechanism 1 and rotary drive mechanism 2, removes cleaning brush, adsorption piece is installed on revolving part 3
On.
In this step, after completing first of cleaning process, elevating mechanism 1 and rotary drive mechanism are simultaneously closed off
2, cleaning brush is removed, adsorption piece is mounted at the annular groove 31 on revolving part 3.Wherein, adsorption piece can be containing alcohol
Sponge.
Step 4 opens elevating mechanism 1 and rotary drive mechanism 2.
In this step, washing and cleaning operation will be rotated and goes up and down by opening elevating mechanism 1 and rotary drive mechanism 2, revolving part 3,
Adsorption piece will thoroughly clean 10 inner wall of spray chamber, complete second cleaning process.
Spray chamber inner wall washing method is not only able to guarantee cleaning thoroughly by above-mentioned twice cleaning process, meanwhile, cleaning
Contact area is big, and cleaning efficiency is high, can significantly shorten scavenging period, improves p owder production efficiency.And it is close to effectively prevent personnel
Distance contact attritive powder causes respiratory disease, also releasable human resources.
Include checking procedure after step 4, checking procedure specifically includes the following steps:
Elevating mechanism 1 is opened on rotary drive mechanism 2 or elevating mechanism 1 in step 5, reviewer station.
In this step, elevating mechanism 1 will drive reviewer's lifting moving, to be convenient to reviewer to spray chamber
10 inner wall is tested.
Whether the inner wall washing that step 6, reviewer detect spray chamber 10 is qualified, if qualified, completes cleaning,
If unqualified, step 1 is repeated to step 4.
In this step, reviewer enters 10 internal check cleaning effect of spray chamber, if being also not up to cleaning requirement, root
According to actual state, first of cleaning process, second cleaning process can be repeated；If reaching cleaning requirement, complete to clean
Spray chamber cleaner for inner wall is finally moved to specified position by walking mechanism 4 by work.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of spray chamber cleaner for inner wall, which is characterized in that it includes elevating mechanism, rotary drive mechanism and revolving part,
One end of the rotary drive mechanism is connected to the top of the elevating mechanism, and the other end of the rotary drive mechanism is connected to
The revolving part simultaneously is used to that the revolving part to be driven to rotate.
2. spray chamber cleaner for inner wall as described in claim 1, which is characterized in that the spray chamber cleaner for inner wall is also
It include walking mechanism, the bottom of the elevating mechanism is connected in the walking mechanism.
3. spray chamber cleaner for inner wall as claimed in claim 2, which is characterized in that the elevating mechanism includes elevator
And mounting base, the bottom of the elevator are connected to the walking mechanism, the mounting base are connected at the top of the elevator,
The rotary drive mechanism is connected in the mounting base.
4. spray chamber cleaner for inner wall as claimed in claim 3, which is characterized in that the elevating mechanism further includes having limit
Part, the both ends of the locating part are connected to the walking mechanism and the mounting base.
5. spray chamber cleaner for inner wall as described in claim 1, which is characterized in that the rotary drive mechanism includes rotation
Rotating motor and bracket, the bracket are connected to the top of the elevating mechanism, and the rotating electric machine is connected in the bracket, and
The rotor of the rotating electric machine is connected to the revolving part.
6. spray chamber cleaner for inner wall as described in claim 1, which is characterized in that the revolving part is rotating disk, described
The outer peripheral surface of rotating disk is equipped with annular groove, and the annular groove is recessed inwardly along the radial direction of the rotating disk.
7. spray chamber cleaner for inner wall as described in claim 1, which is characterized in that the spray chamber cleaner for inner wall is also
It include supporting plate, the supporting plate is connected to the elevating mechanism；
Alternatively, the supporting plate is connected to the rotary drive mechanism.
8. a kind of spray chamber inner wall washing method, which is characterized in that it utilizes the mist as described in any one of claim 1-7
Change chamber interior walls cleaning device, the cleaning method the following steps are included:
Cleaning brush is installed on the revolving part by step 1；
Step 2, the underface that spray chamber cleaner for inner wall is placed on to spray chamber, open the elevating mechanism and the rotation
Driving mechanism；
Step 3 closes the elevating mechanism and the rotary drive mechanism, removes the cleaning brush, adsorption piece is installed on institute
It states on revolving part；
Step 4 opens the elevating mechanism and the rotary drive mechanism.
9. spray chamber inner wall washing method as claimed in claim 8, which is characterized in that include inspection after the step 4
Test step, the checking procedure specifically includes the following steps:
The elevating mechanism is opened on the rotary drive mechanism or the elevating mechanism in step 5, reviewer station；
Whether the inner wall washing that step 6, the reviewer detect the spray chamber is qualified, if qualified, completes scavenger
Make, if unqualified, repeating said steps 1 to the step 4.
10. spray chamber inner wall washing method as claimed in claim 8, which is characterized in that in step 3, the adsorption piece is
Containing spirituous sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408082.8A CN109500021A (en) | 2018-11-23 | 2018-11-23 | Spray chamber cleaner for inner wall and its cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408082.8A CN109500021A (en) | 2018-11-23 | 2018-11-23 | Spray chamber cleaner for inner wall and its cleaning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109500021A true CN109500021A (en) | 2019-03-22 |
Family
ID=65750465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811408082.8A Pending CN109500021A (en) | 2018-11-23 | 2018-11-23 | Spray chamber cleaner for inner wall and its cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109500021A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3124343C1 (en) * | 1981-06-20 | 1983-01-13 | Horst 6108 Weiterstadt Bormet | Washing apparatus for run-off channels in sewage treatment plants |
| CN202438484U (en) * | 2012-03-02 | 2012-09-19 | 成都银弧标识有限公司 | Lift type high-altitude cleaning device |
| CN202570653U (en) * | 2012-01-10 | 2012-12-05 | 王金宁 | Movable light pole and tablet cleaning and renewing machine |
| CN104084400A (en) * | 2014-07-08 | 2014-10-08 | 成都高普石油工程技术有限公司 | Oil pipeline cleaning equipment |
| KR20150065074A (en) * | 2013-12-04 | 2015-06-12 | 우복기초 주식회사 | cleaning machine for steel pipe |
| CN105174153A (en) * | 2015-09-25 | 2015-12-23 | 苏州市优诺特升降机械有限公司 | Hydraulic buffering protective lifting platform |
| CN206676858U (en) * | 2017-02-20 | 2017-11-28 | 安徽工程大学 | A kind of pipeline cleaning dust arrester |
| CN206854301U (en) * | 2017-06-22 | 2018-01-09 | 张晓敏 | A kind of adaptive cleaning device for stalk pyrolytic reaction tank |
| CN207270088U (en) * | 2017-08-15 | 2018-04-27 | 浙江实美润滑科技有限公司 | A kind of cleaning brush for scrubbing test tube |
-
2018
- 2018-11-23 CN CN201811408082.8A patent/CN109500021A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3124343C1 (en) * | 1981-06-20 | 1983-01-13 | Horst 6108 Weiterstadt Bormet | Washing apparatus for run-off channels in sewage treatment plants |
| CN202570653U (en) * | 2012-01-10 | 2012-12-05 | 王金宁 | Movable light pole and tablet cleaning and renewing machine |
| CN202438484U (en) * | 2012-03-02 | 2012-09-19 | 成都银弧标识有限公司 | Lift type high-altitude cleaning device |
| KR20150065074A (en) * | 2013-12-04 | 2015-06-12 | 우복기초 주식회사 | cleaning machine for steel pipe |
| CN104084400A (en) * | 2014-07-08 | 2014-10-08 | 成都高普石油工程技术有限公司 | Oil pipeline cleaning equipment |
| CN105174153A (en) * | 2015-09-25 | 2015-12-23 | 苏州市优诺特升降机械有限公司 | Hydraulic buffering protective lifting platform |
| CN206676858U (en) * | 2017-02-20 | 2017-11-28 | 安徽工程大学 | A kind of pipeline cleaning dust arrester |
| CN206854301U (en) * | 2017-06-22 | 2018-01-09 | 张晓敏 | A kind of adaptive cleaning device for stalk pyrolytic reaction tank |
| CN207270088U (en) * | 2017-08-15 | 2018-04-27 | 浙江实美润滑科技有限公司 | A kind of cleaning brush for scrubbing test tube |
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Application publication date: 20190322 |
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| RJ01 | Rejection of invention patent application after publication |