CN104033728A - Waste steel cylinder processing method - Google Patents
Waste steel cylinder processing method Download PDFInfo
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- CN104033728A CN104033728A CN201410269978.8A CN201410269978A CN104033728A CN 104033728 A CN104033728 A CN 104033728A CN 201410269978 A CN201410269978 A CN 201410269978A CN 104033728 A CN104033728 A CN 104033728A
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- Prior art keywords
- steel cylinder
- valve
- gas
- discarded
- pipeline
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 113
- 239000010959 steel Substances 0.000 title claims abstract description 113
- 238000003672 processing method Methods 0.000 title claims abstract description 24
- 239000002699 waste material Substances 0.000 title abstract 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000007789 gas Substances 0.000 claims abstract description 52
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000002341 toxic gas Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000000053 physical method Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a waste steel cylinder processing method. The waste steel cylinder processing method comprises the following steps: (1) mounting a whole waste steel cylinder processing system; (2) mounting a steel cylinder processing pipeline, valves and a pressure meter; (3) carrying out gas tightness examination; (4) carrying out gas replacement for a plurality of times; (5) carrying out the gas tightness examination again; (6) detecting gas in a waste steel cylinder; (7) processing the gas detected in the step (6); (8) processing an emergency situation; and (9) cleaning a site. According to the waste steel cylinder processing method, the security detection is carried out by a device utilized in the method by virtue of nitrogen, then toxic gas is replaced in a nitrogen inflation manner and is finally processed by virtue of a physical method or a chemical method, and meanwhile, the device is provided with an emergent spraying device and pumping holes, so that the safety and the reliability of the whole system are guaranteed.
Description
Technical field
The invention belongs to energy-conserving and environment-protective technical field, be specifically related to a kind of employing nitrogen and carry out safety detection, adopt afterwards the mode that is filled with nitrogen that toxic gas is cemented out, the discarded steel cylinder processing method of finally toxic gas being taked physics or chemical method to dispose.
Background technique
Pressure gas cylinder kind is numerous and diverse, comprises poisonous/hypertoxic gas, inflammable gas, oxidizing gas, corrosive gas and simple asphyxiant gas etc., the existing single mixed gas that also has.Discarded gas cylinder is more because of of the remote past, and kind is not clear, adds valve corrosion, has higher potential risk, and the safe disposal of carrying out discarded steel cylinder is an indispensable vital task guaranteeing urban safety.
Wherein a small amount of steel cylinder composition is not clear, and major part belongs to poisonous or hypertoxic gas, and the task of top priority is to seek method of disposal safely and effectively, eliminates potential risk source.
Summary of the invention
For the problems referred to above, main purpose of the present invention is to provide a kind of employing nitrogen to carry out safety detection, adopt afterwards the mode that is filled with nitrogen that toxic gas is cemented out, the discarded steel cylinder processing method of finally toxic gas being taked physics or chemical method to dispose.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of discarded steel cylinder processing method, is characterized in that: described discarded steel cylinder processing method comprises the steps:
(1), whole discarded steel cylinder processing system is installed;
(2), steel cylinder is installed and is processed pipeline, valve and pressure gauge;
(3), airtight test;
(4), gas displacement repeatedly;
(5), airtight test again;
(6), detect the gas in discarded steel cylinder;
(7), the gas detecting in (6) step is processed;
(8), urgency is processed;
(9), site clearing.
In a preferred embodiment of the present invention, discarded steel cylinder processing system in step (1) comprises the steel cylinder fixture of clamping discarded steel cylinder, steel cylinder fixture is fixed on fixed plate, steel cylinder fixture is placed on the steel cylinder of sealing and disposes in pond after discarded steel cylinder is clamped, the top that steel cylinder is disposed pond is provided with electric drill entrance, is provided with the steel cylinder electric drill device of holing on discarded steel cylinder between electric drill entrance and discarded steel cylinder; Steel cylinder is disposed on pond and is also provided with some suction boles, is connected with suction channel on suction bole, and suction valve is installed on suction channel, and discarded steel cylinder processing method also comprises the emergency shower device that is arranged on top, steel cylinder disposal pond.
In a preferred embodiment of the present invention, described steel cylinder fixture comprises the upper fixture on fixing discarded steel cylinder top and the lower clamp of fixing discarded steel cylinder bottom.
In a preferred embodiment of the present invention, described steel cylinder electric drill device comprises: the drilling rod in high pressure sealing drill bushing and insertion high pressure sealing drill bushing, adopts tetrafluoro packing_seal between high pressure sealing drill bushing and drilling rod.
In a preferred embodiment of the present invention, steel cylinder processing pipeline, valve and pressure gauge are installed specifically to be comprised: the pipeline that in discarded steel cylinder, gas is gone out is installed, the first valve and the 3rd valve are installed between the gas export mouth on pipeline and pipeline, on pipeline between the first valve and the 3rd valve, separate two branch pipe(tube)s, the second valve on gas sampled pipeline is installed respectively and is passed into the 4th valve on nitrogen pipeline;
Airtight test comprises: from the outlet pipe laying of steel cylinder electric drill device, on the pipeline of the 4th valve, pass into nitrogen, first with nitrogen, carry out pipeline air tightness test, when steel cylinder pressure gauge is shown as zero, reduction valve pressure be 0.02Mpa think and pipeline in while flowing out without gas;
Gas displacement repeatedly comprises: close the second valve, the 3rd valve, open the first valve and the 4th valve, pass into nitrogen and after the regular hour, turn off the 4th valve and the 3rd valve, open the first valve and the second valve, in sample tap sampling, after sampling, obtain after the composition of gas processing at the cleanup standard according to gas again.
Positive progressive effect of the present invention is: discarded steel cylinder processing method provided by the invention has the following advantages: the present invention first adopts nitrogen to carry out safety detection, adopt afterwards the mode that is filled with nitrogen that toxic gas is cemented out, finally toxic gas is taked the method for physics or chemistry to dispose, the present invention simultaneously disposes the emergency shower device that top, pond arranges, just in case when steel cylinder occurs to leak, can prevent toxic gas diffusion.The present invention arranges 2 suction boles pond bottom (major part has poison gas to be all heavier than air) and upper edge hole, just in case steel cylinder while there is leakage, can be pumped to toxic gas scrubber tower and neutralize.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of discarded steel cylinder processing method.
Fig. 2 is for taking out the structural representation of gas in discarded steel cylinder processing method.
Embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present invention, to describe technological scheme of the present invention in detail.
Fig. 1 is the general structure schematic diagram of discarded steel cylinder processing method, as shown in Figure 1: the present invention includes the steel cylinder fixture 2 of clamping discarded steel cylinder 1, steel cylinder fixture 2 is fixed on fixed plate 3, steel cylinder fixture 2 is placed on the steel cylinder of sealing and disposes in pond 4 after discarded steel cylinder 1 is clamped, the top that steel cylinder is disposed pond 4 is provided with electric drill entrance 401, is provided with the steel cylinder electric drill device 6 of boring on discarded steel cylinder 1 between electric drill entrance 401 and discarded steel cylinder 1; Steel cylinder is disposed on pond 4 and is also provided with some suction boles 402, is connected with suction channel 403 on suction bole 402, and suction valve 404 is installed on suction channel 403, and discarded steel cylinder processing method also comprises the emergency shower device 5 that is arranged on steel cylinder disposal 4 tops, pond.Steel cylinder fixture 2 comprises the upper fixture 201 on fixing discarded steel cylinder 1 top and the lower clamp 202 of fixing discarded steel cylinder 1 bottom.
Fig. 2 is for taking out the structural representation of gas in discarded steel cylinder processing method, as shown in Figure 2: the processing procedure of the taking-up gas of discarded steel cylinder processing method is as follows: will discard steel cylinder 1 and be placed on steel cylinder and dispose in pond 4 and be fixed on fixed plate 3, install steel cylinder electric drill device 6, the first valve 9 shown in installation diagram 2, the second valve 10, the 3rd valve 11, the 4th valve 12, outlet pipe laying 8 from steel cylinder electric drill device 6, on the pipeline of the 4th valve 12, pass into nitrogen, first with nitrogen, carry out pipeline air tightness test, when steel cylinder pressure gauge 13 is shown as zero, reduction valve pressure be 0.02Mpa think and pipeline in while flowing out without gas, close the valve of giving vent to anger, open nitrogen valve, in steel cylinder, be filled with nitrogen, regulate pressure to continue venting at 0.1Mpa, close the second valve 10, the 3rd valve 11, open the first valve 9 and the 4th valve 12, pass into nitrogen and after the regular hour, turn off the 4th valve 12 and the 3rd valve 11, open the first valve 9 and the second valve 10, in sample tap 14 samplings, after sampling, obtain after the composition of gas processing at the cleanup standard according to gas again.
Specific embodiment below:
Early stage Borehole Disposal:
1, will discard steel cylinder and fix in disposal pond, and install high pressure sealing drill bushing and electric drill, the electric drill of telecontrol feed function is opened in runin:
2, stop valve reduction valve, flowmeter, connection gas path pipe are installed, first with nitrogen, are carried out pipeline air tightness test, then connect the pressure-conducting valve of being disposed on steel cylinder.
3, spray pump and induced draught fan in opening protection function pond;
4, to nitrogen injection in high pressure sealing drill bushing, carry out pressure test and inert gas replacement;
Preparatory work before processing:
1, operator have dressed protective articles (siren suit, respirator, soak and mould gloves, portable oxygenrespirator) and have been equipped with the personnel of monitoring simultaneously.
2, the processing of residue in discarded steel cylinder;
2.1,, during burning disposal spontaneous combustion state, dual firing chamber's pressure calibration is at-8～-12mmH
2during O, open whole gas circuit angle valve, pass into nitrogen, with sodium dodecyl sulfate aqueous solution, check jointing tightness.If check intactly, close nitrogen valve, the electric drill of telecontrol feed function is opened in runin, and steel cylinder is drilled through.
2.2, opening reduction valve needle type valve adjustments of gas pressure is that 0.1Mpa starts venting, again checks the tightness of jointing and connecting pipeline.
2.3, when steel cylinder pressure is shown as zero, reduction valve pressure be 0.02Mpa think and pipeline in while flowing out without gas, close the valve of giving vent to anger, open nitrogen valve, toward steel cylinder in, be filled with nitrogen, regulate pressure to exit in 0.1Mpa continuation.
2.4, three replacement operators repeatedly, constantly inflation/deflation, finishes displacement work.
2.5, check steel cylinder jointing per half an hour with gas piping tightness once, as found, leak the egoistic pressure-conducting valve of closing.
2.6,, to replacement completion, when the pressure gauge of organic gas residue steel cylinder is shown as zero, close pressure-conducting valve.
2.7, meet that burner is flame-out, quick-fried stove, be greater than-4mmH of dual firing chamber's pressure
2o closes pressure-conducting valve immediately.
2.8, fill in strictly according to the facts < < inflammable gas and process original record > >
3, the absorption spray cleaning of tail gas operation:
3.1, spray tower operation
(1) start centrifugal pump, now centrifugal pump pressure is at 2KG/cm
2left and right.
(2) after having fluid-tight, spray tower water outlet opens incinerator system.
(3) observe centrifugal pump working pressure, spray tower outlet temperature and water-outlet quantity change, when as larger in above-mentioned data variation, need to check whether centrifugal pump normally works, whether spray nozzle stops up, and enters centrifugal pump fault and need open stand by pump, enters spray nozzle and stops up dredging in time.
(4) observe spray liquid pH value and change, as pH value is less than at 10 o'clock, need adds liquid caustic soda and be adjusted to 12 left and right.
Check steel cylinder jointing per half an hour with gas piping tightness once, as found, leak and close immediately pressure-conducting valve.
To replacement completion, when the pressure gauge of organic gas residue steel cylinder is shown as zero, close pressure-conducting valve.
Meet that burner is flame-out, quick-fried stove, be greater than-4mm of dual firing chamber's pressure water close pressure-conducting valve immediately.
If without any abnormal conditions, continue to repeat the step of above-mentioned processing gas.
Process gas and generally adopt the method for burning to carry out, adopt the emergency shower device 5 that is arranged on steel cylinder disposal 4 tops, pond to spray, if observe spray liquid pH value, change, according to pH value, process, until the effulent of processing reaches emission standard.
In addition, the present invention disposes the emergency shower device 5 that pond top arranges, just in case steel cylinder while occurring to leak, can prevent that toxic gas from spreading.
Steel cylinder pond bottom (major part has poison gas to be all heavier than air) and upper edge hole, 2 suction boles 402 is set, just in case while there is leakage, can be pumped to toxic gas scrubber tower and neutralize.
The device that the present invention uses first adopts nitrogen to carry out safety detection, adopt afterwards the mode that is filled with nitrogen that toxic gas is cemented out, finally toxic gas is taked the method for physics or chemistry to dispose, also be provided with emergency shower device and suction bole simultaneously, guaranteed the safe and reliable of whole system.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and the claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. a discarded steel cylinder processing method, is characterized in that: described discarded steel cylinder processing method comprises the steps:
(1), whole discarded steel cylinder processing system is installed;
(2), steel cylinder is installed and is processed pipeline, valve and pressure gauge;
(3), airtight test;
(4), gas displacement repeatedly;
(5), airtight test again;
(6), detect the gas in discarded steel cylinder;
(7), the gas detecting in (6) step is processed;
(8), urgency is processed;
(9), site clearing.
2. discarded steel cylinder processing method according to claim 1, it is characterized in that: the discarded steel cylinder processing system in step (1) comprises the steel cylinder fixture of clamping discarded steel cylinder, steel cylinder fixture is fixed on fixed plate, steel cylinder fixture is placed on the steel cylinder of sealing and disposes in pond after discarded steel cylinder is clamped, the top that steel cylinder is disposed pond is provided with electric drill entrance, is provided with the steel cylinder electric drill device of holing on discarded steel cylinder between electric drill entrance and discarded steel cylinder; Steel cylinder is disposed on pond and is also provided with some suction boles, is connected with suction channel on suction bole, and suction valve is installed on suction channel, and discarded steel cylinder processing method also comprises the emergency shower device that is arranged on top, steel cylinder disposal pond.
3. discarded steel cylinder processing method according to claim 2, is characterized in that: described steel cylinder fixture comprises the upper fixture on fixing discarded steel cylinder top and the lower clamp of fixing discarded steel cylinder bottom.
4. discarded steel cylinder processing method according to claim 2, is characterized in that: described steel cylinder electric drill device comprises: the drilling rod in high pressure sealing drill bushing and insertion high pressure sealing drill bushing, adopts tetrafluoro packing_seal between high pressure sealing drill bushing and drilling rod.
5. discarded steel cylinder processing method according to claim 1, it is characterized in that: steel cylinder processing pipeline, valve and pressure gauge are installed and are specifically comprised: the pipeline that in discarded steel cylinder, gas is gone out is installed, the first valve and the 3rd valve are installed between the gas export mouth on pipeline and pipeline, on pipeline between the first valve and the 3rd valve, separate two branch pipe(tube)s, the second valve on gas sampled pipeline is installed respectively and is passed into the 4th valve on nitrogen pipeline;
Airtight test comprises: from the outlet pipe laying of steel cylinder electric drill device, on the pipeline of the 4th valve, pass into nitrogen, first with nitrogen, carry out pipeline air tightness test, when steel cylinder pressure gauge is shown as zero, reduction valve pressure be 0.02Mpa think and pipeline in while flowing out without gas;
Gas displacement repeatedly comprises: close the second valve, the 3rd valve, open the first valve and the 4th valve, pass into nitrogen and after the regular hour, turn off the 4th valve and the 3rd valve, open the first valve and the second valve, in sample tap 14 sampling, after sampling, obtain after the composition of gas processing at the cleanup standard according to gas again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269978.8A CN104033728B (en) | 2014-06-17 | 2014-06-17 | A kind of discarded steel cylinder processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269978.8A CN104033728B (en) | 2014-06-17 | 2014-06-17 | A kind of discarded steel cylinder processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033728A true CN104033728A (en) | 2014-09-10 |
| CN104033728B CN104033728B (en) | 2016-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410269978.8A Active CN104033728B (en) | 2014-06-17 | 2014-06-17 | A kind of discarded steel cylinder processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033728B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927392A (en) * | 2018-06-13 | 2018-12-04 | 福建省锅炉压力容器检验研究院 | A kind of realization fuel cartridge continuous-flow type cleaning method |
| CN110420943A (en) * | 2019-08-30 | 2019-11-08 | 苏州金宏气体股份有限公司 | A kind of device and method removing solid particle in ultra-pure ethyl orthosilicate steel cylinder |
| CN115419823A (en) * | 2022-09-20 | 2022-12-02 | 济南德洋特种气体有限公司 | Gas cylinder fills dress and tracks management system |
| CN110420943B (en) * | 2019-08-30 | 2024-05-31 | 金宏气体股份有限公司 | Device and method for removing solid particles in ultra-high purity ethyl silicate steel cylinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59187178A (en) * | 1983-04-08 | 1984-10-24 | Chuo Sansho Kk | Gas safety device |
| CN101358948A (en) * | 2008-08-21 | 2009-02-04 | 华中科技大学 | Device for detecting metal body of underground gas storage well |
| CN102494246A (en) * | 2011-12-16 | 2012-06-13 | 重庆市计量质量检测研究院 | Integrated gas dispenser detection device through standard meter method |
| CN102853252A (en) * | 2012-08-31 | 2013-01-02 | 成都爱德工程有限公司 | Method of replacing steel cylinder for high-purity safe special gas |
| CN102887617A (en) * | 2011-07-18 | 2013-01-23 | 方运平 | Integrated device for combustible gas recovering and sludge drying in waste landfill site |
-
2014
- 2014-06-17 CN CN201410269978.8A patent/CN104033728B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59187178A (en) * | 1983-04-08 | 1984-10-24 | Chuo Sansho Kk | Gas safety device |
| CN101358948A (en) * | 2008-08-21 | 2009-02-04 | 华中科技大学 | Device for detecting metal body of underground gas storage well |
| CN102887617A (en) * | 2011-07-18 | 2013-01-23 | 方运平 | Integrated device for combustible gas recovering and sludge drying in waste landfill site |
| CN102494246A (en) * | 2011-12-16 | 2012-06-13 | 重庆市计量质量检测研究院 | Integrated gas dispenser detection device through standard meter method |
| CN102853252A (en) * | 2012-08-31 | 2013-01-02 | 成都爱德工程有限公司 | Method of replacing steel cylinder for high-purity safe special gas |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927392A (en) * | 2018-06-13 | 2018-12-04 | 福建省锅炉压力容器检验研究院 | A kind of realization fuel cartridge continuous-flow type cleaning method |
| CN110420943A (en) * | 2019-08-30 | 2019-11-08 | 苏州金宏气体股份有限公司 | A kind of device and method removing solid particle in ultra-pure ethyl orthosilicate steel cylinder |
| CN110420943B (en) * | 2019-08-30 | 2024-05-31 | 金宏气体股份有限公司 | Device and method for removing solid particles in ultra-high purity ethyl silicate steel cylinder |
| CN115419823A (en) * | 2022-09-20 | 2022-12-02 | 济南德洋特种气体有限公司 | Gas cylinder fills dress and tracks management system |
| CN115419823B (en) * | 2022-09-20 | 2023-07-21 | 济南德洋特种气体有限公司 | Gas cylinder filling tracking management system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033728B (en) | 2016-05-18 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20150924 Address after: 201308, A-759, room 1, 1758 Hong Kong Road, Nanhui new town, Shanghai, Pudong New Area Applicant after: SHANGHAI TIANHAN ENVIRONMENTAL RESOURCES Co.,Ltd. Address before: 201411, Shanghai, Fengxian District town of love Village Applicant before: Shanghai Jieshen Industrial Co.,Ltd. |
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Commission number: 4W114744 Conclusion of examination: Declare Claim 1 of Invention Patent No. 201410269978.8 invalid, and continue to maintain the validity of this patent on the basis of Claims 2-5 Decision date of declaring invalidation: 20230529 Decision number of declaring invalidation: 560657 Denomination of invention: A method for disposing of discarded steel cylinders Granted publication date: 20160518 Patentee: SHANGHAI TIANHAN ENVIRONMENTAL RESOURCES Co.,Ltd. |
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| IP01 | Partial invalidation of patent right |