CN1544120A - Reverse flushing and filter apparatus for noble, toxic and poisonous liquid and the cleaning method - Google Patents
Reverse flushing and filter apparatus for noble, toxic and poisonous liquid and the cleaning method Download PDFInfo
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- CN1544120A CN1544120A CNA2003101132847A CN200310113284A CN1544120A CN 1544120 A CN1544120 A CN 1544120A CN A2003101132847 A CNA2003101132847 A CN A2003101132847A CN 200310113284 A CN200310113284 A CN 200310113284A CN 1544120 A CN1544120 A CN 1544120A
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- filter
- pipeline
- automatic valve
- pipe
- backwash
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- 239000007788 liquid Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 19
- 231100000614 poison Toxicity 0.000 title claims abstract description 15
- 230000007096 poisonous effect Effects 0.000 title claims abstract description 15
- 238000004140 cleaning Methods 0.000 title claims description 45
- 238000011010 flushing procedure Methods 0.000 title 1
- 231100000331 toxic Toxicity 0.000 title 1
- 230000002588 toxic effect Effects 0.000 title 1
- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 239000012065 filter cake Substances 0.000 claims abstract description 10
- 239000011949 solid catalyst Substances 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 60
- 238000001914 filtration Methods 0.000 claims description 33
- 239000012530 fluid Substances 0.000 claims description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 210000005239 tubule Anatomy 0.000 claims description 9
- 230000008929 regeneration Effects 0.000 claims description 8
- 238000011069 regeneration method Methods 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019441 ethanol Nutrition 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract 5
- 238000007664 blowing Methods 0.000 abstract 1
- 238000011045 prefiltration Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 238000011001 backwashing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to a back-blowing washing filter for noble, poisonous and harmful liquid and a washing method. Its character: when the filter core needs regenerative washing, it applies isopiestic pressure on inner and outer sides of the filter core at the same time, to ensure the filter cake from falling off; by setting an inserted filter separating device in the pollution discharge pipe, it discharges the forgoing liquid in the filter to pre-filter raw solution storage tank, then injects the displacement washing solution reversely through the filter separating device into the filter, and under the common action of backflushing aid gas and displacement washing solution, discharges the filter cake-containing foul solution to the backflushing foul solution storage tank. For the working condition in need of recovering solid catalyst, it adds the recovering device behind the backflushing foul solution storage tank. It has advantages of reasonable design, remarkable and economic using effect and convenient operation.
Description
Affiliated field
The invention belongs to valuable, the poisonous and harmful liquid medium filters in field such as petrochemical industry, metallurgy, be specially adapted to blowback cleaning and filtering apparatus and cleaning method valuable, poisonous and harmful liquid.
Technical background
In the field of petrochemical industry of prior art,, adopt that to switch the automatic backwash filtration system continuously be current main development trend for impurity content height, liquid filtration media that treating capacity is big.In order to make filter core reach effective regeneration, guarantee that filter core has serviceability steady in a long-term, the filter cake that generally adopts gas assist type back flush mode that cartridge surface is adhered to is in the prior art removed and its soiling solution is disposed to contaminated-oil basin by the soiling solution feed-line; Its flow process (comprises automatically as shown in Figure 1, semi-automatic and manual control), the gas assist type back flush filtration system equipment of prior art is to be linked by two or many (100% filters) filter parallel connections, filter A and filter B bottom are respectively by automatic valve VA3, VB3 and backwash soiling solution feed-line join, automatic valve VA5 is passed through on top in filter A and filter B, VB5 and backwash assist gas pipeline join, pass through VA4, VB4 links to each other with the emission gases pipeline, equally VA2 is being housed, the pipeline of VB2 automatic valve, should join with the decontaminating liquid export pipeline, the raw material liq input pipe is by automatic valve VA1, VB1 joins with filter A and filter B respectively.Two filters of prior art (A and B) are to adopt switching mode to use, and when filter A carried out filter operation, the filter B standby host was stand-by.When filter A operation pressure reduction reaches setting value, provide signal by control device and switch to filter B and carry out filter operation, and filter A using gases is carried out the back flush of gas assist type.The back flush of gas assist type is operating as: filter canister teeming air valve is opened earlier, the backwash assist gas in the injecting gas pipeline.The appended cake layer of filter core is loosening because backwash assist gas compression shock can be exercised earlier, and flushbottom tank valve is opened then, makes backwash assist gas compressing pot liquid (sump oil) and it is all drained into the soiling solution feed-line to advance contaminated-oil basin.Filter A regeneration ending is standby.When filter B reaches setting pressure reduction, also carry out above-mentioned same backwash operation equally, filter A starts working simultaneously.When nontoxic or price was relatively low at filter medium liquid, this back-washing method was widely used, but when filter medium liquid for more valuable solution or when being poisonous and harmful solution, this kind back-washing method just is not suitable for using.Though can reuse or can not reuse but the solid catalyst of needs recovery if contain in the backwash soiling solution, then should consider the backwash soiling solution that enters in the soiling solution pond is separated once more to reclaim solid catalyst, existing filtering technique is considered and imperfection this.
Summary of the invention
The object of the present invention is to provide a kind of reasonable in design, result of use significantly, the blowback cleaning and filtering apparatus and the cleaning method of economic and easy to operate valuable, poisonous and harmful liquid.
According to purpose of the present invention, the solution that we considered is when filter element need clean, employing outside in filter core adds isobaric method simultaneously and guarantees under the adeciduate situation of filter cake, by in blow-off pipe, being provided with embedded isolated by filtration device, valuable, harmful poisonous fluid discharge in the filter is arrived the preceding former liquid storage tank of filter, then oppositely by this embedded isolated by filtration device, to replace cleaning fluid and inject filter, backwash assist gas and displacement cleaning fluid altogether under acting on, the soiling solution that will contain filter cake is discharged in the backwash soiling solution storage tank.Reclaim out the operating mode of solid catalyst for needs, increased the device that reclaims solid catalyst.Specific embodiments of the present invention is:
The composition of this device is when guaranteeing to produce continuously, employing is no less than the system of two filters, be again by automatic valve VA1 is housed after filter A and the filter B parallel connection, the pipeline of VB1 and material liquid input pipe b join, the blow-off pipe 1 of filter A and filter B bottom is by being equipped with automatic valve VA3, the pipeline of VB3 and backwash soiling solution storage tank f join, filter A and filter B upper lateral part are by being equipped with VA2, the pipeline of VB2 automatic valve and decontaminating liquid efferent duct a join, the top of filter A and filter B is by being equipped with automatic valve VA4, the pipeline of VB4 and emission gases efferent duct c join, backwash assist gas input pipe d is by being equipped with automatic valve VA5, the top of the pipeline of VB5 and filter A and filter B joins, and it is characterized in that backwash assist gas input pipe d is also by being equipped with automatic valve VA8, the pipeline of VB8 and filter A, the import of the backwash assist gas below the tube sheet 6 in the B is joined; In addition at filter A, be provided with embedded isolated by filtration device 7 in the blow-off pipe of B bottom, be provided with a filter core 2 in the isolated by filtration device 7, the top of filter core 2 is equipped with a umbellate form cap 3, a following and tubule 4 of filter core 2 is by being threaded, tubule 4 extends blow-off pipe 1 downwards always, extending tubule 4 is connected by boxing with blow-off pipe 1 intersection, this extends tubule 4 by automatic valve VA6 is housed, the pipeline of VB6 joins with the preceding former liquid storage tank g of filter, the blow-off pipe 1 of filter A and filter B bottom is by being equipped with automatic valve VA7, the pipeline of VB7 joins with displacement cleaning fluid input pipe e, wherein at filter A, B imports and exports one of differential pressure transmitter PDT is installed between the pipeline, at filter A, B tank body sidepiece is equipped with one of fluid level transmitter LT respectively, and control device LT1 is housed on the fluid level transmitter LT.
The pipeline that automatic valve VD1, VC1 are housed in addition joins with filtration gatherer C and evaporimeter D sidepiece respectively, the top of evaporimeter D joins by pipeline and the evaporative medium recovery storage tank h that manually-operated gate VD3 is housed, the bottom of evaporimeter D joins by pipeline and the catalyst gatherer i that manually-operated gate VD2 is housed, the bottom of filtering gatherer C is connected with backwash soiling solution storage tank f by the pipeline that manually-operated gate VC2 is housed, and backwash assist gas input pipe d joins with filtration gatherer C sidepiece by the pipeline that manually-operated gate VC3, check-valves VO2 are housed.
According to the concrete structure and the operation principle of said apparatus, the process that the present invention adopts is in the device systems of two above filters, and when cleaning wherein any one filter, other filter still works on.With filter A is example, when filter element 5 needs backwash and regeneration, open automatic valve VA5 and the automatic valve VA8 of backwash assist gas input pipe d to the pipeline between filter A, the backwash gas of same operating condition is injected in the outside simultaneously in filter A filter core 5, make filter core 5 in, outer surface bears identical gas pressure, filter core 5 adhering on surface cake layers are interior, be in a kind of poised state under the effect of outer air pressure, to most of filter cake is not split away off, the blow-off pipe 1 of opening filter A bottom stoste to the filter reclaims the automatic valve VA6 on the pipeline between storage tank g, pot liquid by being provided with embedded isolated by filtration device 7 in the blow-off pipe 1, being discharged into the preceding stoste of filter and reclaiming storage tank g.When liquid level sets value under liquid level arrives, close automatic valve VA6, open the automatic valve VA7 of displacement cleaning fluid input pipe e to 1 pipeline of blow-off pipe of filter A bottom, oppositely in filter A, inject the displacement cleaning fluid by being provided with embedded isolated by filtration device 7 in the blow-off pipe 1, when the liquid level setting value is gone up in liquid level arrival, close displacement cleaning fluid input automatic valve VA7, open the automatic valve VA5 of backwash assist gas input pipe d to the pipeline between filter A, prolong blow-off pipe 1 that certain hour the opens filter A bottom automatic valve VA3 to the pipeline between backwash soiling solution storage tank f, the blow-off pipe 1 of backwash soiling solution in the filter A by filter A bottom is discharged into backwash soiling solution storage tank f or the later separation device reclaims out solid catalyst, filter A regeneration ending standby host is stand-by.
Gas among the backwash assist gas input pipe d can be any one gas in argon gas, nitrogen, the hydrogen.
Gas gas pressure 0.5-2.5Mpa among the backwash assist gas input pipe d.
Displacement cleaning fluid among the displacement cleaning fluid input pipe e is any one in absolute ethyl alcohol, ethanol, the NaOH.
The serviceability temperature of the displacement cleaning fluid among the displacement cleaning fluid input pipe e should be 10 ℃-80 ℃.
Compared with prior art, the present invention has reasonable in design, result of use is remarkable, economical and easy to operate advantage.The advantage that the present invention gives prominence to is that filter element is need clean the time, employing outside in filter core adds isobaric method simultaneously and guarantees under the adeciduate situation of filter cake, by being provided with embedded isolated by filtration device in the blow-off pipe, make valuable in the filter, stoste reclaimed storage tank before poisonous and harmful liquid was back to filter, and backwash assist gas and displacement cleaning fluid altogether under acting on, filter cake is discharged in the backwash soiling solution storage tank, and this soiling solution increased the device that reclaims solid catalyst, waste and the poisonous and harmful solution of avoiding valuable solution discharging to cause discharge the pollution that brings, and reduce user's operating cost to greatest extent, solve the problem of the recovery of poisonous and harmful solution inconvenience discharging and solid catalyst.
Description of drawings
Accompanying drawing 1 is the structural representation of gas assist type back flush filter for installation in the prior art.
Accompanying drawing 2 is that the utility model is valuable, the structural representation of the blowback cleaning and filtering apparatus of poisonous and harmful liquid.
Accompanying drawing 3 is the structural representation of the embedded isolated by filtration device in the blow-off pipe of filter bottom.
In above-mentioned accompanying drawing, A, B are filter, and C is for filtering gatherer, the D evaporimeter, arrow is depicted as among the figure: a is the decontaminating liquid efferent duct, and b is the material liquid input pipe, and c is the emission gases efferent duct, d is a backwash assist gas input pipe, e is displacement cleaning fluid input pipe, and f is a backwash soiling solution storage tank, and g is the preceding former liquid storage tank g of filter, h is that evaporative medium reclaims storage tank, and i is the catalyst gatherer.VA1 wherein, VB1 is a stock media input automatic valve, VA2, VB2 is for purifying back medium output automatic valve, VA3, VB3 is the blowdown output automatic valve of filter, VA4, VB4 is filter emission gases output automatic valve, VA5, VB5, VA8, VB8 is backwash assist gas input automatic valve, VA6, VB6 is the preceding former liquid storage tank output automatic valve of filter, VA7, VB7 is displacement cleaning fluid input automatic valve, VD1, VD2, VD3 is respectively and filters join manually-operated gate on the pipeline of gatherer C, VC1, VC2, VC3 and the evaporimeter C manually-operated gate on the pipeline that joins, V1 is system's Bypass Control valve, V2 is the manual control valve of stock media intake pipeline b, V3 is the manual control valve of purification medium export pipeline a, and V4 is the manual control valve of backwash assist gas intake pipeline d.V01, V02 are the check valve of backwash assist gas intake pipeline d, and V4 is the manual control valve of backwash assist gas intake pipeline d.PDT is a differential pressure transmitter; LT is a fluid level transmitter; LTI is a control device.1 is blow-off pipe, and 2 is filter core, and 3 is umbrella crown, and 4 for extending tubule, and 5 is filter core, and 6 is tube sheet, and 7 is filter separator.
The specific embodiment
Among Fig. 2 and Fig. 3, this method is in the device systems of two above filters, and when cleaning wherein any one filter, other filter still works on.With filter A is example, when filter element 5 needs backwash and regeneration, open automatic valve VA5 and the automatic valve VA8 of backwash assist gas input pipe d to the pipeline between filter A, the backwash gas of same operating condition is injected in the outside simultaneously in filter A filter core 5, gas among the backwash assist gas input pipe d is argon gas, its gas pressure 1.5Mpa; Make the inside and outside surface of filter core 5 bear identical gas pressure, filter core 5 adhering on surface cake layers are in a kind of poised state under the effect of inside and outside air pressure, to most of filter cake is not split away off, the blow-off pipe 1 of opening filter A bottom is the automatic valve VA6 on the pipeline between stoste backflow storage tank g to the filter, and the pot liquid discharging is reclaimed storage tank g by the stoste before the filter of embedded isolated by filtration device 7 in the blow-off pipe 1.When liquid level sets value under liquid level arrives, close automatic valve VA6, open the automatic valve VA7 of displacement cleaning fluid input pipe e to 1 pipeline of blow-off pipe of filter A bottom, in filtering tank, inject the displacement cleaning fluid by embedded isolated by filtration device 7 in the blow-off pipe 1, the displacement cleaning fluid of displacement cleaning fluid input pipe e is an absolute ethyl alcohol, its serviceability temperature should be 50 ℃, when the liquid level setting value is gone up in liquid level arrival, close displacement cleaning fluid input automatic valve VA7, open the automatic valve VA5 of backwash assist gas input pipe d to the pipeline between filter A, prolong blow-off pipe 1 that certain hour the opens filter A bottom automatic valve VA3 to the pipeline between backwash soiling solution storage tank f, the blow-off pipe 1 of backwash soiling solution in the filter A by filter A bottom is discharged into backwash soiling solution storage tank f or the later separation device reclaims out solid catalyst, filter A regeneration ending standby host is stand-by.
Claims (7)
1, valuable, the blowback cleaning and filtering apparatus of poisonous and harmful liquid, the composition of this device is when guaranteeing to produce continuously, employing is no less than the system of two filters, be again by automatic valve (VA1) is housed after filter (A) and filter (B) parallel connection, (VB1) pipeline and material liquid input pipe (b) join, the blow-off pipe (1) of filter (A) and filter (B) bottom is by being equipped with automatic valve (VA3), (VB3) pipeline and backwash soiling solution storage tank (f) join, filter (A) and filter (B) upper lateral part are by being equipped with (VA2), (VB2) pipeline of automatic valve and decontaminating liquid efferent duct (a) join, the top of filter (A) and filter (B) is by being equipped with automatic valve (VA4), (VB4) pipeline and emission gases efferent duct (c) join, backwash assist gas input pipe (d) is by being equipped with automatic valve (VA5), the top of pipeline (VB5) and filter (A) and filter (B) joins, and it is characterized in that backwash assist gas input pipe (d) is also by being equipped with automatic valve (VA8), (VB8) pipeline and filter (A), (B) import of the backwash assist gas below Nei the tube sheet (6) is joined; In addition at filter (A), (B) be provided with embedded isolated by filtration device (7) in the blow-off pipe 1 of bottom, be provided with a filter core (2) in the isolated by filtration device (7), the top of filter core (2) is equipped with a umbellate form cap (3), a following and tubule (4) of filter core (2) is by being threaded, tubule (4) extends blow-off pipe (1) downwards always, extending tubule (4) is connected by boxing with blow-off pipe (1) intersection, this extends tubule (4) by automatic valve (VA6) is housed, (VB6) pipeline joins with the preceding former liquid storage tank (g) of filter, and the blow-off pipe (1) of filter (A) and filter (B) bottom is by being equipped with automatic valve (VA7), (VB7) pipeline joins with displacement cleaning fluid input pipe (e); Wherein import and export between the pipeline one of differential pressure transmitter (PDT) is installed, one of fluid level transmitter (LT) is housed respectively, control device (LT1) is housed on the fluid level transmitter (LT) at filter (A), (B) tank body sidepiece at filter (A), (B).
2, the blowback cleaning and filtering apparatus of valuable, poisonous and harmful liquid according to claim 1, it is characterized in that the pipeline that manually-operated gate (VD1), (VC1) are housed joins with filtration gatherer (C) and evaporimeter (D) sidepiece respectively, the top of evaporimeter (D) joins by pipeline and the evaporative medium recovery storage tank (h) that manually-operated gate (VD3) is housed, and the bottom of evaporimeter (D) joins by pipeline and the catalyst gatherer (i) that manually-operated gate (VD2) is housed; The bottom of filtering gatherer (C) is connected with backwash soiling solution storage tank (f) by the pipeline that manually-operated gate (VC2) is housed, and backwash assist gas input pipe (d) joins with filtration gatherer (C) sidepiece by the pipeline that manually-operated gate (VC3), check-valves (VO2) are housed.
3, the cleaning method of the blowback cleaning and filtering apparatus of valuable, poisonous and harmful liquid according to claim 1, this method is in the device systems of two above filters, when cleaning wherein any one filter, other filter still works on.With filter (A) is example, when filter element (5) when needing backwash and regeneration, open automatic valve (VA5) and the automatic valve (VA8) of backwash assist gas input pipe (d) to the pipeline between filter (A), in filter (A) filter core (5), the backwash gas of same operating condition is injected in the outside simultaneously, make filter core (5) in, outer surface bears identical gas pressure, filter core (5) adhering on surface cake layer is interior, be in a kind of poised state under the effect of outer air pressure, to most of filter cake is not split away off, the blow-off pipe (1) of opening filter (A) bottom is the automatic valve (VA6) on the pipeline between former liquid storage tank (g) to the filter, with the pot liquid discharging by being provided with embedded isolated by filtration device (7) stoste recovery storage tank (g) before the filter in the blow-off pipe (1).When liquid level sets value under liquid level arrives, close automatic valve (VA6), open the automatic valve (VA7) of displacement cleaning fluid input pipe (e) to the pipeline between the blow-off pipe (1) of filter (A) bottom, oppositely by being provided with embedded isolated by filtration device (7) in the blow-off pipe (1), in filter, inject the displacement cleaning fluid, when the liquid level setting value is gone up in liquid level arrival, close displacement cleaning fluid input automatic valve (VA7), open the automatic valve (VA5) of backwash assist gas input pipe (d) to the pipeline between filter (A), prolong blow-off pipe (1) that certain hour opens filter (A) the bottom automatic valve (VA3) to the pipeline between backwash soiling solution storage tank (f), the blow-off pipe (1) of backwash soiling solution in the filter (A) by filter (A) bottom is discharged into backwash soiling solution storage tank (f) or the later separation device reclaims out solid catalyst, filter (A) regeneration ending standby host is stand-by.
4, cleaning method according to claim 3 is characterized in that gas in the backwash assist gas input pipe (d) is any one gas in argon gas, nitrogen, the hydrogen.
5, according to claim 3,4 described cleaning methods, it is characterized in that the gas pressure 0.5-2.5Mpa in the backwash assist gas input pipe (d).
6, cleaning method according to claim 3 is characterized in that replacing displacement cleaning fluid in the cleaning fluid input pipe (e) and is in absolute ethyl alcohol, ethanol, the NaOH any one.
7,, it is characterized in that the serviceability temperature of replacing the displacement cleaning fluid in the cleaning fluid input pipe (e) should be 10 ℃-80 ℃ according to claim 3,6 described cleaning methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113284 CN1226070C (en) | 2003-11-14 | 2003-11-14 | Reverse flushing and filter apparatus for noble, toxic and poisonous liquid and the cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113284 CN1226070C (en) | 2003-11-14 | 2003-11-14 | Reverse flushing and filter apparatus for noble, toxic and poisonous liquid and the cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1544120A true CN1544120A (en) | 2004-11-10 |
| CN1226070C CN1226070C (en) | 2005-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310113284 Expired - Lifetime CN1226070C (en) | 2003-11-14 | 2003-11-14 | Reverse flushing and filter apparatus for noble, toxic and poisonous liquid and the cleaning method |
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| CN (1) | CN1226070C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269284B (en) * | 2007-03-23 | 2011-08-17 | 宁波宝新不锈钢有限公司 | Backwash method for filtration system of stainless steel cold rolling mill |
| CN103214333A (en) * | 2013-05-10 | 2013-07-24 | 神华集团有限责任公司 | System and process for gas-solid separation and heat exchange of alkene product prepared from organic oxygen-containing compound |
| CN103294014A (en) * | 2012-03-02 | 2013-09-11 | 江苏克莱斯克能源装备有限公司 | Automation control method of filtering system |
| CN103463858A (en) * | 2013-09-02 | 2013-12-25 | 嵩县开拓者钼业有限公司 | Filter system and method for collecting solid mineral grains from lean-phase superfine mineral suspension liquid |
| CN104174210A (en) * | 2014-09-10 | 2014-12-03 | 张春阳 | Noble metal catalyst filter and noble metal catalyst filtering and recycling method |
| CN105779024A (en) * | 2016-05-24 | 2016-07-20 | 河南龙成煤高效技术应用有限公司 | High-temperature dust removal filtration equipment, high-temperature dust removal filtration system and continuous dust removal filtration method |
| CN105885957A (en) * | 2016-05-24 | 2016-08-24 | 河南龙成煤高效技术应用有限公司 | High-temperature dust collection filtering equipment, high-temperature dust collection filtering system and continuous dust collection filtering method |
| CN107344035A (en) * | 2017-08-11 | 2017-11-14 | 中石化宁波工程有限公司 | A kind of continuous filtration system and filter method |
| CN108854213A (en) * | 2017-05-08 | 2018-11-23 | 中国石油化工集团公司 | Geothermal tail water recharge automatic backwash pre-filtrating equipment and system |
| CN109499133A (en) * | 2018-12-26 | 2019-03-22 | 福建中锦新材料有限公司 | A kind of combination filter and filter combined method |
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- 2003-11-14 CN CN 200310113284 patent/CN1226070C/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269284B (en) * | 2007-03-23 | 2011-08-17 | 宁波宝新不锈钢有限公司 | Backwash method for filtration system of stainless steel cold rolling mill |
| CN103294014A (en) * | 2012-03-02 | 2013-09-11 | 江苏克莱斯克能源装备有限公司 | Automation control method of filtering system |
| CN103214333A (en) * | 2013-05-10 | 2013-07-24 | 神华集团有限责任公司 | System and process for gas-solid separation and heat exchange of alkene product prepared from organic oxygen-containing compound |
| CN103463858A (en) * | 2013-09-02 | 2013-12-25 | 嵩县开拓者钼业有限公司 | Filter system and method for collecting solid mineral grains from lean-phase superfine mineral suspension liquid |
| CN103463858B (en) * | 2013-09-02 | 2015-09-02 | 嵩县开拓者钼业有限公司 | Filtration system and the method thereof of solid ore particle is collected from dilute phase fine mineral suspension |
| CN104174210A (en) * | 2014-09-10 | 2014-12-03 | 张春阳 | Noble metal catalyst filter and noble metal catalyst filtering and recycling method |
| CN105779024A (en) * | 2016-05-24 | 2016-07-20 | 河南龙成煤高效技术应用有限公司 | High-temperature dust removal filtration equipment, high-temperature dust removal filtration system and continuous dust removal filtration method |
| CN105885957A (en) * | 2016-05-24 | 2016-08-24 | 河南龙成煤高效技术应用有限公司 | High-temperature dust collection filtering equipment, high-temperature dust collection filtering system and continuous dust collection filtering method |
| CN105885957B (en) * | 2016-05-24 | 2020-03-31 | 河南龙成煤高效技术应用有限公司 | High-temperature dust removal filtering equipment, high-temperature dust removal filtering system and continuous dust removal filtering method |
| US10981097B2 (en) | 2016-05-24 | 2021-04-20 | Henan Dragon Into Coal Technology Co., Ltd. | High-temperature dust removal and filtering apparatus, high-temperature dust removal and filtering system, and continuous dust removal and filtering method |
| CN108854213A (en) * | 2017-05-08 | 2018-11-23 | 中国石油化工集团公司 | Geothermal tail water recharge automatic backwash pre-filtrating equipment and system |
| CN107344035A (en) * | 2017-08-11 | 2017-11-14 | 中石化宁波工程有限公司 | A kind of continuous filtration system and filter method |
| CN109499133A (en) * | 2018-12-26 | 2019-03-22 | 福建中锦新材料有限公司 | A kind of combination filter and filter combined method |
| CN114570088A (en) * | 2022-03-09 | 2022-06-03 | 长鑫存储技术有限公司 | Wet-type cleaning machine table, filter and cleaning method thereof |
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