CN107841756A - A kind of acid cleaning of steel tube system - Google Patents
A kind of acid cleaning of steel tube system Download PDFInfo
- Publication number
- CN107841756A CN107841756A CN201711157098.1A CN201711157098A CN107841756A CN 107841756 A CN107841756 A CN 107841756A CN 201711157098 A CN201711157098 A CN 201711157098A CN 107841756 A CN107841756 A CN 107841756A
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- CN
- China
- Prior art keywords
- pusher
- lifting
- acid solution
- descaling bath
- steel tube
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/04—Apparatus for cleaning or pickling metallic material for cleaning pipes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to steel pipe process field, and in particular to a kind of acid cleaning of steel tube system, including：Descaling bath, acid solution processor, charging push platform, discharging adapting table and drainage rest stand, the descaling bath includes, lifting strut in opening up rectangular cell body and rectangular cell body, the rectangular cell body includes two long side walls and two short side walls, the long side wall includes, the exhausting portion on top and the stop part of bottom, it is provided with the exhausting portion towards the suction opeing set inside rectangular cell body；Acid solution inlet and outlet are provided with the descaling bath, acid solution inlet and outlet are connected by acid solution recovery tube and acid solution ascending pipe with the acid solution processor；The drainage rest stand bottom is grid, and the drainage rest stand is completed from charging push platform to descaling bath again to the transfer successively of discharging adapting table by the first pusher and the second pusher.
Description
Technical field
The present invention relates to steel pipe process field, and in particular to a kind of acid cleaning of steel tube system.
Background technology
Pickling is common step in steel tube surface processing, and generally use descaling bath is carried out at pickling to steel pipe in workshop
Reason, however, the descaling bath peculiar smell in traditional workshop is big, especially steel pipe is put into the moment in pickling tube, can produce a large amount of acid mists,
Environment in strong influence workshop.In addition, traditional pickling tube steel pipe be put into take out when, it is necessary to using traveling crane
Fortune, while increasing workshop danger, acid solution can be caused to spill, be unfavorable for the clean and tidy of workshop condition.
The content of the invention
The purpose of the present invention, it is to solve the problems, such as in background technology, there is provided a kind of acid cleaning of steel tube system.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of acid cleaning of steel tube system, including：Descaling bath, acid solution processor, charging push platform, discharging adapting table and drainage are shelved
Frame, the descaling bath include, the lifting strut in opening up rectangular cell body and rectangular cell body, and the rectangular cell body includes two
Individual long side wall and two short side walls, the long side wall include, the exhausting portion on top and the stop part of bottom, are set in the exhausting portion
It is equipped with the suction opeing towards setting inside rectangular cell body；Acid solution inlet and outlet are provided with the descaling bath, acid solution inlet and outlet pass through
Acid solution recovery tube and acid solution ascending pipe are connected with the acid solution processor；The drainage rest stand bottom is grid, the filter
Water rest stand is completed from charging push platform to descaling bath again to discharging adapting table by the first pusher and the second pusher
Transfer successively.
Preferably, the charging push platform is hoistable platform with the discharging adapting table, and whole platform pass through it is more
The individual lifting unit that be arranged in parallel is formed, first pusher and the second pusher be arranged on these lifting units it
Between, the descaling bath is arranged between the charging push platform and the discharging adapting table, first pusher and described
Second pusher is arranged on the descaling bath towards the side of the charging push platform.
First pusher and the second pusher are fixed high push cylinder, and both push cylinders, which stagger, to be set
Put, the level height of first pusher is more than the level height of second pusher, first pusher
Distance and the distance of the descaling bath are more than the distance of second pusher and the descaling bath.
Preferably, being hinged between the exhausting portion and the stop part, backwind tube is provided with the exhausting portion, it is described
Backwind tube is connected with induced draft fans, and the backwind tube runs through the exhausting portion in the longitudinal direction, and its both ends is set respectively
There are single induced draft fans.
By setting suction opeing, effectively acid mist can in time be taken away, ensure that the air quality in workshop.In addition,
Drainage rest stand is coordinated by the lifting strut of lift so that steel pipe is entering the mode of pickling tube and traditional handling mode
Difference, by the way of steel pipe is entered with drainage rest stand using monoblock type in this programme, the drainage rate of steel pipe has acid solution and leaked soon
Go out.
Preferably, the bottom of the stop part and the short side wall links into an integrated entity, the exhausting portion is arranged on described
The both sides of short side wall, sealing strip is provided between the exhausting portion and the short side wall.
Preferably, being provided with support cylinder on the outside of the exhausting portion, the both ends of the support cylinder are taken out with described respectively
Wind portion outer wall and ground are hinged.
Preferably, high level control hole and low liquid level round, the height are provided with the short side wall of the rectangular cell body
The level height in Liquid level hole is higher than the low liquid level round, and the high level control hole connects respectively with the low liquid level round
Backflow water pipe and draining water pipe are connected to, the backflow water pipe is connected with circulation pump machine, sour water is returned in descaling bath again, described
Draining water pipe is connected with water discharging valve and storage liquid pool, and sour water is stored and carries out subsequent treatment, and the liquid level of the storage liquid pool is high
Level height of the degree less than the low liquid level round.
Preferably, it is described lifting strut two be provided with lifting device, the lifting device includes, lifting motor and
Rope chain is lifted, described lifting rope chain two is separately fixed on the output revolving shaft and the lifting strut of lifting motor.
Preferably, the lifting strut upper surface is provided with support block, detent mechanism and guiding block, the guiding block is set
The both ends on the lifting stay length direction are put, the guiding block is provided with guide ramp, and the support block top surface is set
There is pulley.
Preferably, the detent mechanism includes, lifting positioning head, spring, locating piece, plenum chamber and aerating pipe port；Institute
The top for stating lifting positioning head is tip, and the lifting positioning head bottom is provided with piston block.
In summary, beneficial effects of the present invention：
1. a kind of acid cleaning of steel tube system of the present invention, steel pipe does overall motion with drainage rest stand, and entirely turns
Journey is moved past by lifting strut, the lift action of charging push platform and the adapting table that discharges and the first pusher and the second push
The push effect of device, whole process need not use the security for driving lifting, improving workshop.
2. a kind of acid cleaning of steel tube system of the present invention, can effectively remove caused acid mist in acid cleaning process, ensure car
Between environment, and using circulation acid solution pickling, ensure that pickling effect.
3. a kind of acid cleaning of steel tube system of the present invention, can faster lifting using lifting strut and low liquid level round
Steel pipe, accelerate drainage rate of the steel pipe in descaling bath.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the transfer schematic diagram of drainage rest stand of the present invention；
Fig. 3 is the structural representation of descaling bath of the present invention；
Fig. 4 is the top view of descaling bath of the present invention；
Fig. 5 is the structural representation of detent mechanism of the present invention；
Fig. 6 is the structural representation of high level control hole and low liquid level round of the present invention.
Embodiment
Specific examples below is only explanation of the invention, and it is not limitation of the present invention, art technology
Personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as
All protected in scope of the presently claimed invention by Patent Law.
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
According to Fig. 1, Fig. 2, Fig. 3, a kind of acid cleaning of steel tube system, including：Descaling bath 1, acid solution processor 2, charging push platform
3rd, discharging adapting table 4 and drainage rest stand 5, the descaling bath 1 include, in opening up rectangular cell body 11 and rectangular cell body 11
Lifting strut 12, the rectangular cell body 11 includes two long side wall 111 and two short side walls 112, and the long side wall 111 is wrapped
Include, the exhausting portion 1111 on top and the stop part 1112 of bottom, be provided with the exhausting portion 1111 towards in rectangular cell body 11
The suction opeing 1101 that portion is set；Acid solution inlet and outlet are provided with the descaling bath 1, acid solution inlet and outlet pass through the He of acid solution recovery tube 21
Acid solution ascending pipe 22 is connected with the acid solution processor 2；The bottom of drainage rest stand 5 is grid, the drainage rest stand 5
Completed by the first pusher 61 and the second pusher 62 from charging push platform 3 to descaling bath 1 again to discharging adapting table 4
Shift successively.
The charging push platform 3 is hoistable platform with the discharging adapting table 4, and whole platform parallel is set by multiple
The lifting unit put is formed, and the pusher 62 of the first pusher 61 and second is arranged between these lifting units, institute
State descaling bath 1 to be arranged between institute's charging push platform 3 and the discharging adapting table 4, first pusher 61 and institute
State the second pusher 62 and be arranged on the descaling bath 1 towards the side of the charging push platform 3.
The pusher 62 of first pusher 61 and second is fixed high push cylinder, and both push cylinders stagger
Set, the level height of first pusher 61 is more than the level height of second pusher 62, and described first pushes away
The distance of device 61 and the distance of the descaling bath 1 is sent to be more than the distance of second pusher 62 and the descaling bath 1.
It is hinged between the exhausting portion 1111 and the stop part 1112, backwind tube is provided with the exhausting portion 1111
1102, the backwind tube 1102 is connected with induced draft fans, and the backwind tube 102 runs through the exhausting portion 111 in the longitudinal direction,
And its both ends is respectively arranged with single induced draft fans.
The bottom of the stop part 1112 and the short side wall 112 links into an integrated entity, and the exhausting portion 1111 is arranged on institute
The both sides of short side wall 112 are stated, sealing strip 1121, the exhausting are provided between the exhausting portion 1111 and the short side wall 112
The outside of portion 1111 is provided with support cylinder 11111, the both ends of the support cylinder 11111 respectively with the outer wall of exhausting portion 1111
And ground is hinged.
Two of the lifting strut 12 is provided with lifting device 16, and the lifting device 16 includes, the He of lifting motor 161
Rope chain 162 is lifted, described lifting rope chain 162 two is separately fixed at the output revolving shaft of lifting motor 161 and the lifting strut
On 12.
According to Fig. 4, lifting strut 12 upper surface is provided with support block 121, detent mechanism 122 and guiding block
123, the guiding block 123 is arranged on the both ends on the lifting length direction of strut 12, and the guiding block 123 is provided with guiding
Inclined-plane 1231, the top surface of support block 121 are provided with pulley 1211.
According to Fig. 5, the detent mechanism 122 includes, and lifting positioning head 1221, spring 1222, locating piece 1223, fills
Air chamber 1224 and aerating pipe port 1225；The top of the lifting positioning head 1221 is tip, lifting positioning head 1221 bottom
It is provided with piston block 12211.
According to Fig. 6, high level control hole 14 and low liquid level row are provided with the short side wall 112 of the rectangular cell body 11
Hole 15, the level height of the high level control hole 14 are higher than the low liquid level round 15, the high level control hole 14 and institute
State low liquid level round 15 and be connected to backflow water pipe 141 and draining water pipe 151, the backflow water pipe 141 is connected with circulating pump
Machine, sour water is returned in descaling bath again, the draining water pipe 151 is connected with water discharging valve and storage liquid pool, and sour water is stored
Subsequent treatment is carried out, the liquid level of the storage liquid pool is less than the level height of the low liquid level round 15.
Charging at work, first, the exhausting portion 1111 of upset charging push platform 3 side, is pushed platform 3 with rising by whole system
Drop strut 12 is lifted, and drainage rest stand 5 is pushed in descaling bath 1 under the effect of the first pusher 61, during push, is led to
Cross guide ramp 1231 and complete positioning fixation with detent mechanism 122.Then, exhausting portion 1111 is turned back, falls lifting strut 12 simultaneously
Fill acid solution and carry out pickling.After completing pickling, open low liquid level round 15 and lift lifting strut 12 simultaneously while accept discharging
Platform 4 is increased to proper height, after acid solution leakage completely is dry, overturns the exhausting portion 1111 of both sides, will by the second pusher 62
Drainage rest stand 5 is pushed on discharging adapting table 4.
Claims (10)
- A kind of 1. acid cleaning of steel tube system, it is characterised in that including：Descaling bath（1）, acid solution processor（2）, charging push platform（3）、 Discharge adapting table（4）With drainage rest stand（5）, the descaling bath（1）Including opening up rectangular cell body（11）With long square groove Body（11）Interior lifting strut（12）, the rectangular cell body（11）Including two long side walls（111）With two short side walls（112）, The long side wall（111）Including the exhausting portion on top（1111）With the stop part of bottom（1112）, the exhausting portion（1111）On It is provided with towards rectangular cell body（11）The suction opeing that inside is set（1101）；The descaling bath（1）Acid solution inlet and outlet are inside provided with, Acid solution inlet and outlet pass through acid solution recovery tube（21）With acid solution ascending pipe（22）With the acid solution processor（2）It is connected；The drainage Rest stand（5）Bottom is grid, the drainage rest stand（5）Pass through the first pusher（61）With the second pusher（62） Complete to push platform from charging（3）To descaling bath（1）Discharging adapting table is arrived again（4）Transfer successively.
- A kind of 2. acid cleaning of steel tube system according to claim 1, it is characterised in that the charging push platform（3）With it is described Discharge adapting table（4）It is hoistable platform, and whole platform is made up of multiple lifting units be arrangeding in parallel, described first pushes away Send device（61）With the second pusher（62）It is arranged between these lifting units, the descaling bath（1）Enter described in being arranged on Material push platform（3）With the discharging adapting table（4）Between, first pusher（61）With second pusher（62） It is arranged on the descaling bath（1）Towards the charging push platform（3）Side.
- A kind of 3. acid cleaning of steel tube system according to claim 2, it is characterised in that first pusher（61）With Two pushers（62）For surely high push cylinder, both push cylinder stagger settings, first pusher（61）'s Level height is more than second pusher（62）Level height, first pusher（61）Distance and the pickling Groove（1）Distance be more than second pusher（62）With the descaling bath（1）Distance.
- A kind of 4. acid cleaning of steel tube system according to claim 1, it is characterised in that the exhausting portion（1111）With the resistance Stopper（1112）Between be hinged, the exhausting portion（1111）Inside it is provided with backwind tube（1102）, the backwind tube（1102）With taking out Wind blower fan is connected.
- A kind of 5. acid cleaning of steel tube system according to claim 2, it is characterised in that the stop part（1112）With it is described short Side wall（112）Bottom link into an integrated entity, the exhausting portion（1111）It is arranged on the short side wall（112）Both sides, it is described to take out Wind portion（1111）With the short side wall（112）Between be provided with sealing strip（1121）.
- A kind of 6. acid cleaning of steel tube system according to claim 3, it is characterised in that the exhausting portion（1111）Outside is set There is support cylinder（11111）, the support cylinder（11111）Both ends respectively with the exhausting portion（1111）Outer wall and ground It is be hinged.
- A kind of 7. acid cleaning of steel tube system according to claim 1, it is characterised in that the rectangular cell body（11）Short side wall （112）On be provided with high level control hole（14）With low liquid level round（15）, the high level control hole（14）Level height Higher than the low liquid level round（15）, the high level control hole（14）With the low liquid level round（15）It is connected to backflow Water pipe（141）With draining water pipe（151）, the backflow water pipe（141）Circulation pump machine is connected with, sour water is returned into descaling bath again It is interior, the draining water pipe（151）Water discharging valve and storage liquid pool are connected with, sour water is stored and carries out subsequent treatment, the storage The liquid level of liquid pool is less than the low liquid level round（15）Level height.
- A kind of 8. acid cleaning of steel tube system according to claim 1, it is characterised in that the lifting strut（12）Two set It is equipped with lifting device（16）, the lifting device（16）Including lifting motor（161）With lifting rope chain（162）, the raising cord Chain（162）Two is separately fixed at lifting motor（161）Output revolving shaft and the lifting strut（12）On.
- A kind of 9. acid cleaning of steel tube system according to claim 8, it is characterised in that the lifting strut（12）Upper surface is set It is equipped with support block（121）, detent mechanism（122）And guiding block（123）, the guiding block（123）It is arranged on the lifting strut （12）Both ends on length direction, the guiding block（123）It is provided with guide ramp（1231）, the support block（121）Top surface It is provided with pulley（1211）.
- A kind of 10. acid cleaning of steel tube system according to claim 9, it is characterised in that the detent mechanism（122）Including, Lift positioning head（1221）, spring（1222）, locating piece（1223）, plenum chamber（1224）And aerating pipe port（1225）；The liter Positioning head drops（1221）Top be tip, the lifting positioning head（1221）Bottom is provided with piston block（12211）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711157098.1A CN107841756B (en) | 2017-11-20 | 2017-11-20 | A kind of acid cleaning of steel tube system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711157098.1A CN107841756B (en) | 2017-11-20 | 2017-11-20 | A kind of acid cleaning of steel tube system |
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| Publication Number | Publication Date |
|---|---|
| CN107841756A true CN107841756A (en) | 2018-03-27 |
| CN107841756B CN107841756B (en) | 2019-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711157098.1A Active CN107841756B (en) | 2017-11-20 | 2017-11-20 | A kind of acid cleaning of steel tube system |
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| Country | Link |
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| CN (1) | CN107841756B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208017A (en) * | 2018-10-27 | 2019-01-15 | 单士营 | A kind of stainless steel tube processing machine |
| CN113481515A (en) * | 2021-06-23 | 2021-10-08 | 大冶市新冶特钢有限责任公司 | Pickling treatment equipment for seamless steel pipe and pickling method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09235688A (en) * | 1995-12-27 | 1997-09-09 | Sumitomo Metal Ind Ltd | Method for pickling stainless steel |
| CN201224764Y (en) * | 2008-06-27 | 2009-04-22 | 江苏博隆环保设备有限公司 | Pickling device for metallic material |
| CN202010669U (en) * | 2011-03-28 | 2011-10-19 | 浙江约特工具有限公司 | Continuous washing device for saw blade |
| CN203021653U (en) * | 2012-12-26 | 2013-06-26 | 胡士志 | Cleaning device |
| CN203080067U (en) * | 2012-12-24 | 2013-07-24 | 浙江大学 | Stainless steel pickling system |
| CN205313676U (en) * | 2015-12-08 | 2016-06-15 | 松阳上上德盛不锈钢有限公司 | Acidizing fluid circulation pickling pond of pickling steel pipe |
| CN205893395U (en) * | 2016-07-06 | 2017-01-18 | 湖北大帆金属制品有限公司 | Acid washing tank |
-
2017
- 2017-11-20 CN CN201711157098.1A patent/CN107841756B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09235688A (en) * | 1995-12-27 | 1997-09-09 | Sumitomo Metal Ind Ltd | Method for pickling stainless steel |
| CN201224764Y (en) * | 2008-06-27 | 2009-04-22 | 江苏博隆环保设备有限公司 | Pickling device for metallic material |
| CN202010669U (en) * | 2011-03-28 | 2011-10-19 | 浙江约特工具有限公司 | Continuous washing device for saw blade |
| CN203080067U (en) * | 2012-12-24 | 2013-07-24 | 浙江大学 | Stainless steel pickling system |
| CN203021653U (en) * | 2012-12-26 | 2013-06-26 | 胡士志 | Cleaning device |
| CN205313676U (en) * | 2015-12-08 | 2016-06-15 | 松阳上上德盛不锈钢有限公司 | Acidizing fluid circulation pickling pond of pickling steel pipe |
| CN205893395U (en) * | 2016-07-06 | 2017-01-18 | 湖北大帆金属制品有限公司 | Acid washing tank |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208017A (en) * | 2018-10-27 | 2019-01-15 | 单士营 | A kind of stainless steel tube processing machine |
| CN109208017B (en) * | 2018-10-27 | 2020-07-24 | 佛山市源宏旺金属制品有限公司 | Stainless steel pipe processing machine |
| CN113481515A (en) * | 2021-06-23 | 2021-10-08 | 大冶市新冶特钢有限责任公司 | Pickling treatment equipment for seamless steel pipe and pickling method thereof |
| CN113481515B (en) * | 2021-06-23 | 2022-03-08 | 大冶市新冶特钢有限责任公司 | Pickling treatment equipment for seamless steel pipe and pickling method thereof |
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| Publication number | Publication date |
|---|---|
| CN107841756B (en) | 2019-08-16 |
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