CN102358643A - Apparatus for recovering and reusing electroplating rinse water, and method thereof - Google Patents
Apparatus for recovering and reusing electroplating rinse water, and method thereof Download PDFInfo
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- CN102358643A CN102358643A CN2011101670844A CN201110167084A CN102358643A CN 102358643 A CN102358643 A CN 102358643A CN 2011101670844 A CN2011101670844 A CN 2011101670844A CN 201110167084 A CN201110167084 A CN 201110167084A CN 102358643 A CN102358643 A CN 102358643A
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Abstract
The invention relates to an apparatus for recovering and reusing electroplating rinse water, and a method thereof, and belongs to the water treatment equipment. The apparatus mainly comprises a rinse water recovery tank, an active carbon tower, a relay water tank, a precision filter, a cation resin tower, an anion resin tower, a recycling water tank. The active carbon tower of the apparatus comprises two sets of apparatuses, wherein the two sets of the apparatuses comprise an active carbon tower A and an active carbon tower B. The precision filter comprises two sets of apparatuses, wherein the two sets of the apparatuses comprise a precision filter A and a precision filter B. The cation resin tower comprises two sets of apparatuses, wherein the two sets of the apparatuses comprise a cation resin tower A and a cation resin tower. The anion resin tower comprises two sets of apparatuses, wherein the two sets of the apparatuses comprise an anion resin tower A and an anion resin tower B. The apparatuses of the present invention form an A-line system apparatus and a B-line system apparatus according to the requirements of the process, wherein the A-line system apparatus and the B-line system apparatus are provided for recovering and reusing the electroplating rinse water; according to the requirements of the process, the A-line system apparatus operates or the B-line system apparatus operates. With the present invention, the purpose of the electroplating rinse water recovery and reuse is achieved, the water recovery rate is improved and the cost of the electroplating wastewater treatment is reduced.
Description
Technical field
The present invention relates to the water treating equipment class, particularly a kind of device and method of electroplating rinse water recycling.
Background technology
As everyone knows, the electroplating industry rinsing water yield is big, and heavy metal ion content is high, and is big to human harm.At present, electroplating rinse water directly discharges after adopting reverse osmosis process to handle the method for waste water more, and shortcoming is to cause water resource waste.And reverse osmosis process reclaims electroplating rinse water, and the recovery is lower, simultaneously owing to the high reason of (chemical oxygen demand) COD value in the rinse water, is faced with reverse osmosis membrane short problem actual service life.
Summary of the invention
The object of the present invention is to provide a kind of device and method of electroplating rinse water recycling, realize the raising of electroplating rinse water recycling rate, it is big to solve present electroplate rinsing water loss, and the reverse osmosis process recovery is low, problems such as reverse osmosis membrane weak point in work-ing life.
A kind of system and device of electroplating rinse water recycling is made up of following array apparatus: the cationic resin cation(R.C.) tower in impurity in the rinse water accumulator tank of collection electroplating rinse water, the filtration rinse water and the reduction waste water in the relaying tank of the activated carbon tower of COD value (COD), relay storage electroplating rinse water, accurate filter, the removal rinse water, anionic resin anion(R.A) tower, the reuse tank of utilization again and the back washing tower of back washing process in the removal rinse water.
The activated carbon tower of said system device is made up of two covering devices of activated carbon tower A and activated carbon tower B; Accurate filter is made up of accurate filter A and accurate filter B two covering devices; The resin cation(R.C.) tower is made up of resin cation(R.C.) tower A and resin cation(R.C.) tower B two covering devices; The resin anion(R.A) tower is made up of resin anion(R.A) tower A and resin anion(R.A) tower B two covering devices; And form the A wire system device of the electroplating rinse water recycling that constitutes by rinse water accumulator tank, activated carbon tower A, relaying tank, accurate filter A, resin cation(R.C.) tower A, resin anion(R.A) tower A and reuse tank according to the needs of technology; And the B wire system device of another electroplating rinse water recycling of rinse water accumulator tank, activated carbon tower B, relaying tank, accurate filter B, resin cation(R.C.) tower B, resin anion(R.A) tower B and reuse tank formation; According to arts demand, or the operation of A wire system device, B wire system device is subsequent use; Or the operation of B wire system device, A wire system device is subsequent use.Wherein:
Rinse water accumulator tank, relaying tank and reuse tank are the metal construction of the inner wall of tower PVF material line with rubber that is lined with acid and alkali-resistance or the tank of selecting for use stainless steel to be made; Each above-mentioned tank is connected with the miscellaneous equipment of system and device through pipeline; Be transported in each device of system by the industrial pump that satisfies manufacturing technique requirent, form the cyclic processing device system of rinse water.
Accurate filter is used for filtering rinse water suspended substance and impurity.
The activated carbon tower is used for filtering the impurity of rinse water and reduces COD value (COD) in the waste water.
Double-deck column plate up and down is installed in the tower body of resin cation(R.C.) tower, is useful on the open hole that the filter cap is installed on the column plate, the filter cap with micro-pore is installed on the open hole on the column plate.
The tower body top of resin cation(R.C.) tower is provided with the top intake-outlet with various cross currents, and its washing water inlet pipe, medicine are annotated pipe, rising pipe, are connected with tower body top intake-outlet; The tower body top of resin cation(R.C.) tower also is provided with resin and imports and exports; Resin turnover pipe is imported and exported with this resin and is connected; Resin cation(R.C.) enters in the tower body through resin turnover Guan Bingcong resin, is deposited on the filter cap of column plate, and confirms its ulking thickness according to the needs of technology.
The bottom of tower body is provided with the bottom intake-outlet, and water inlet pipe, back washing water inlet pipe, regeneration waste liquid rising pipe pass through the intracavity inter-connection of bottom intake-outlet and tower body, satisfy rinse water round-robin needs.
Be installed in filter cap on the column plate earlier during installation, import and export resin cation(R.C.) through the resin on resin turnover Guan Bingcong top again and insert in the tower, up to being piled into the needed thickness of technology with micro-pore.Import and export by resin equally when changing resin cation and take out.
In the tower body of resin anion(R.A) tower column plate is installed; And three layers of column plate pressing upper strata column plate, middle level column plate and lower floor's column plate are arranged; Be shaped on the open hole that is used for the mounting filtering cap on each layer column plate; Filter cap with micro-pore is installed on the open hole on the column plate, at the middle level column plate and the resin anion(R.A) of the required thickness of build up process above lower floor's column plate.The top of tower body is provided with and washes water inlet pipe, medicine are annotated pipe, produced water-circulating pipe, the reuse water rising pipe is connected top intake-outlet, keeps supplying that layer resin packed into or the tower body upper strata resin that takes out usefulness imports and exports, supplies lower-layer resin to pack into or the tower body lower-layer resin of taking out usefulness is imported and exported and import and export with the tower body resin and resin that the import and export of tower body resin are connected passes in and out and manages.
The bottom of tower body is provided with the bottom intake-outlet that is connected with water inlet pipe, upper strata back washing water inlet pipe, lower floor's back washing water inlet pipe and regeneration waste liquid rising pipe.
The back washing rising pipe that the tower body top of back washing tower is provided with tower body top intake-outlet and is communicated with it; The tower body bottom is provided with tower body bottom intake-outlet, and coupled logical resin turnover pipe, also is provided with resin in the bottom of tower body and returns the tower water inlet pipe, and return resin import and export and the pipe core that the tower water inlet pipe is connected with resin.
Inner wall of tower was lined with the PVF material line with rubber of acid and alkali-resistance when resin cation(R.C.) tower, resin anion(R.A) tower and back washing tower were made.
During operation; Rinse water get into the activated carbon tower from the rinse water accumulator tank and tentatively filter; Water leg from the effusive rinse water of activated carbon tower get into, the rinse water that promoted through pump by middle water leg get into the accurate filter filtration, again in the intake-outlet entering tower body of water inlet pipe via the tower body bottom by the resin cation(R.C.) tower; Through with tower body in after the resin cation(R.C.) reaction from tower body top water outlet discharge through rising pipe; Pass through the water inlet pipe of next rinse water resin anion(R.A) tower body bottom again, get in the tower body from lower water inlet at last, discharge from tower body top intake-outlet and rising pipe with resin anion(R.A) reaction back in the tower body.
A kind of process method of electroplating rinse water recycling:
1, electroplating rinse water is collected by the rinse water accumulator tank, promotes through pump then and gets into the activated carbon tower, is intended to filter the impurity in the rinse water and reduces COD value (COD) in the waste water; The water outlet of activated carbon tower gets into the relaying tank, filters after pump promotes through accurate filter and gets into the resin cation(R.C.) tower, in the resin cation(R.C.) tower, removes the positively charged ion of rinse water, like Cu
2+, Ni
2+, Zn
2+
2, the resin cation(R.C.) tower adopts individual layer floating bed technology, and when promptly normally producing water, waste water gets into from the tower bottom, flows out from tower top, and resin cation(R.C.) is quick condition in tower under the waste water buoyancy function.With the bed technology ratio, this method water production rate is big, and therefore back washing resin during resin regeneration practices thrift the water yield at every turn, and reclamation rate is high.
The principles of chemistry of resin cation(R.C.) absorption: M
++ R-H---R-M+H
+, wherein: M
+Be positively charged ion in the water, R-H is a resin cation(R.C.).
The resin cation(R.C.) regenerated principles of chemistry: H
++ R-M---R-H+M
+
3, waste water gets into the resin anion(R.A) tower after coming out from the resin cation(R.C.) tower, in the resin anion(R.A) tower, removes the negatively charged ion in the rinse water.The resin anion(R.A) tower adopts double-deck floating bed technology, promptly divides two portions up and down in the tower.Two portions are adorned the different anions resin respectively: Ta Nei lower floor resin anion(R.A) is mainly removed the strongly-acid negatively charged ion, like SO
4 2+, Cl
-, (Cr
2O
4)
2-The upper strata resin anion(R.A) is mainly removed acidulous anion in the tower, like HCO
3 -The resin anion(R.A) tower goes out water conductivity less than 20 μ s/cm.
The water of native system output is stored in the reuse tank, and power supply plating rinsing station is reused.
The resin anion(R.A) absorption principles of chemistry: (CrO
4)
2-+ 2R-OH---R
2-CrO
4+ 2OH
-, wherein R-OH is a resin anion(R.A).
The resin anion(R.A) regeneration principles of chemistry: 2OH
-+ R
2-CrO
4---2R-OH+CrO
4 2-
4, in the native system, the every product water of activated carbon adsorption tower 100 hours, back washing is once discharged after the water entering sewage plant Waste Water Treatment after the back washing is handled.
5, when the resin anion(R.A) tower product water conductivity that adopts A wire system device is higher than 20 μ s/cm, then launches subsequent use B wire system device and produce water (vice versa), purpose is to be to realize the production line continuous water supply.
6, resin tower produces when water conductivity is higher than 20 μ s/cm and explains that the resin absorption ion is bordering on saturated in this wire system yin, yang resin tower.Need carry out manipulation of regeneration this moment to resin.The resin cation(R.C.) tower uses 10%HCl to regenerate, and promptly through medicine notes pipe and tower body top intake-outlet 10%HCl is joined in the tower body, uses H
+The metallic cation of resin absorption is exchanged, make resin cation(R.C.) regain exchange capacity; The resin anion(R.A) tower uses 5%NaOH to regenerate, with OH
-The anionresin of resin absorption is got off, make negatively charged ion regain exchange capacity, the regeneration back supplies down circulation once to switch and uses as redundant system.The method of its resin anion(R.A) tower dosing and concrete operations are that intake-outlet joins 5%NaOH in the tower body from tower body top through medicine notes pipe, and other is with resin cation(R.C.) tower operating method.
7, the zwitterion resin tower need separate back washing during back washing; During the back washing of resin cation(R.C.) tower; Back washing water gets in the tower body from the back washing water inlet pipe of tower body bottom; Back washing water outlet and resin are discharged from the resin turnover pipe of tower body upper side, import and export pipe by resin and get in the back washing tower, and back washing water, impurity and broken resin are discharged from the back washing water outlet on back washing tower top; Return the tower water when back washing finishes and return the tower water inlet pipe via resin import and export entering, manage refunds resin cation(R.C.) tower to resin by the resin turnover through pipe core from resin.Be divided into two towers back washing respectively up and down during the back washing of resin cation(R.C.) tower; In the back washing during tower back washing water get in the tower from the upper strata back washing water inlet pipe of tower bottom; Back washing water outlet and resin are discharged from the resin turnover pipe of tower body upper side; Get in the back washing tower by resin turnover pipe; Back washing water, impurity and broken resin are discharged from the back washing rising pipe on back washing tower top, return the tower water when back washing finishes and return the entering of tower water inlet pipe from resin, manage refunds resin anion(R.A) tower upper strata to resin by the resin turnover through pipe core; Under the back washing during tower back washing water get in the tower from lower floor's back washing water inlet pipe of tower bottom; Back washing water outlet and resin are imported and exported from the lateral resin of tower and are discharged; Get in the back washing tower by resin turnover pipe; Back washing water, impurity and broken resin are discharged from the back washing rising pipe on back washing tower top, return the tower water when back washing finishes and return the entering of tower water inlet pipe from resin, manage refunds resin anion(R.A) tower lower floor to resin by the resin turnover through pipe core.
8, resin tower multiparity water, two process circulations of regeneration needed to be transplanted on back washing in the resin back washing tower to resin in the yin, yang resin tower respectively after 60 days, and purpose is resin chip and foreign material in the flushing resin tower.
The invention has the advantages that: realize the recovery and reuse of electroplating rinse water, improved the recovery of water, practiced thrift water resources, reduced the electroplating wastewater processing cost simultaneously, practical.
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is a resin cation(R.C.) tower structure synoptic diagram of the present invention;
Fig. 3 is a resin anion(R.A) tower structure synoptic diagram of the present invention;
Fig. 4 is a resin back washing tower structure synoptic diagram of the present invention.
Sequence number implication in the accompanying drawing 1: 1. rinse water accumulator tank, 2. activated carbon tower (2A. activated carbon tower, 2B. activated carbon tower), 3. relaying tank, 4. accurate filter (4A. accurate filter and 4B. accurate filter), 5. resin cation(R.C.) tower (5A. resin cation(R.C.) tower and 5B resin cation(R.C.) tower), 6. resin anion(R.A) tower (6A resin anion(R.A) tower and 6B resin anion(R.A) tower), 7. reuse tank;
Sequence number implication in the accompanying drawing 2: 5. resin cation(R.C.) tower, 50. resin cation(R.C.) Tata bodies, 51. column plates, 52. filter caps, 53. resin cation(R.C.)s, 54. bottom intake-outlets, 541. water inlet pipes, 542. back washing water inlet pipes, 543. regeneration waste liquid rising pipes, 55. top intake-outlets, 551. washing water inlet pipes, 552 medicines are annotated pipe, 553. rising pipes, the import and export of 56. resins, 561. resins turnover pipe
Sequence number implication in the accompanying drawing 3: 6. resin anion(R.A) tower; 60. resin anion(R.A) Tata body; 61. column plate; 62. filter cap; 63. resin anion(R.A); 64. bottom intake-outlet; 641. water inlet pipe; 642. upper strata back washing water inlet pipe; 643. lower floor's back washing water inlet pipe; 644. regeneration waste liquid rising pipe; 65. top intake-outlet; 651. washing water inlet pipe; 652. medicine is annotated pipe; 653. resin turnover pipe; 654. product water-circulating pipe; 655. rising pipe; 66. the upper strata resin is imported and exported; 67. lower-layer resin is imported and exported.
Sequence number implication in the accompanying drawing 4: 8. back washing tower, 80. back washing Tata bodies, 81. pipe cores, 82. resins turnover pipe, 83. back washing rising pipes, 84. resins return tower water inlet pipe, 85. tower body top intake-outlets, 86 tower body bottom intake-outlets, the import and export of 87. resins.
Embodiment
Shown in accompanying drawing 1 to accompanying drawing 4, the system and device of electroplating rinse water recycling is made up of following array apparatus: the cationic resin cation(R.C.) tower 5 in impurity in the rinse water accumulator tank 1 of collection electroplating rinse water, the filtration rinse water and the reduction waste water in the relaying tank 3 of the activated carbon tower 2 of COD value (COD), relay storage electroplating rinse water, accurate filter 4, the removal rinse water, anionic resin anion(R.A) tower 6, the reuse tank 7 of utilization again and the back washing tower 8 of back washing process in the removal rinse water.
The activated carbon tower 2 of said system device is made up of two covering devices of activated carbon tower 2A and activated carbon tower 2B; Accurate filter 4 is made up of accurate filter 4A and accurate filter 4B two covering devices; Resin cation(R.C.) tower 5 is made up of resin cation(R.C.) tower 5A and resin cation(R.C.) tower 5B two covering devices; Resin anion(R.A) tower 6 is made up of resin anion(R.A) tower 6A and resin anion(R.A) tower 6B two covering devices; And form the A wire system device of the electroplating rinse water recycling that constitutes by rinse water accumulator tank 1, activated carbon tower 2A, relaying tank 3, accurate filter 4A, resin cation(R.C.) tower 5A, resin anion(R.A) tower 6A and reuse tank 7 according to the needs of technology; And the B wire system device of another electroplating rinse water recycling of rinse water accumulator tank 1, activated carbon tower 2B, relaying tank 3, accurate filter 4B, resin cation(R.C.) tower 5B, resin anion(R.A) tower 6B and reuse tank 7 formations; According to arts demand, or the operation of A wire system device, B wire system device is subsequent use; Or the operation of B wire system device, A wire system device is subsequent use.Wherein:
Rinse water accumulator tank 1, middle water leg 3 and reuse tank 7 are lined with metal construction or the tank of selecting for use stainless steel to be made of the PVF material line with rubber of acid and alkali-resistance for inner wall of tower; Each above-mentioned tank is connected with the miscellaneous equipment of system and device through pipeline; Be transported in each device of system by the industrial pump that satisfies manufacturing technique requirent, form the cyclic processing device system of rinse water.
The accurate filter that is used for filtering rinse water suspended substance and impurity is the outsourcing multipurpose plant.
The activated carbon tower is used for filtering the impurity of rinse water and reducing COD value (COD) in the waste water, is outsourcing device.
Shown in accompanying drawing 2, double-deck column plate 51 up and down is installed in the tower body 50 of resin cation(R.C.) tower 5, be shaped on the open hole that is used to install filter cap 52 on the column plate 51, the filter cap with micro-pore is installed on the open hole on the column plate.
The bottom of tower body 50 is provided with bottom intake-outlet 54, and water inlet pipe 541, back washing water inlet pipe 542, regeneration waste liquid rising pipe 543 satisfy rinse water round-robin needs through the intracavity inter-connection of bottom intake-outlet 54 with tower body 50.
Be installed in filter cap 52 on the column plate 51 earlier during installation, import and export 56 to resin cation(R.C.) 53 through the resin on resin turnover pipe 561 and top again and insert in the tower, up to being piled into the needed thickness of technology with micro-pore.Importing and exporting 56 by resin equally when changing resin cation 53 takes out.
Shown in accompanying drawing 3; In the tower body 60 of resin anion(R.A) tower 6 column plate 61 is installed; And three layers of column plate pressing upper strata column plate, middle level column plate and lower floor's column plate are arranged; Be shaped on the open hole that is used to install filter cap 62 on each layer column plate 61, filter cap 62 cloth with micro-pore are installed on the column plate 61, are covered with the resin anion(R.A) 63 of the required thickness of technology at the middle level column plate with above lower floor's column plate.The top of tower body 60 be provided with the tower body resin of washing water inlet pipe 651, medicine are annotated pipe 652, produced water-circulating pipe 654, rising pipe 655 is connected top intake-outlet 65, keep supplying that layer resin packed into or the tower body upper strata resin that takes out usefulness imports and exports 66, supply lower-layer resin to pack into or taking out usefulness import and export 67 and with the tower body resin import and export 66 and the resin that is connected of tower body lower-layer resin import and export 67 pass in and out and manage 653.
The bottom of tower body 60 is provided with the bottom intake-outlet 64 that is connected with water inlet pipe 641, upper strata back washing water inlet pipe 642, lower floor's back washing water inlet pipe 643 and regeneration waste liquid rising pipe 644.
Shown in accompanying drawing 4, the back washing rising pipe 83 that tower body 80 tops of back washing tower 8 are provided with tower body top intake-outlet 85 and are communicated with it; Tower body 80 bottoms are provided with tower body bottom intake-outlet 86, and coupled logical resin turnover pipe 82, also are provided with resin at the sidepiece of tower body 80 and return tower water inlet pipe 84, and return resin that tower water inlet pipe 84 is connected with resin and import and export 87 and pipe core 81.
Inner wall of tower was lined with the PVF material line with rubber of acid and alkali-resistance when resin cation(R.C.) tower 5, resin anion(R.A) tower 6 and back washing tower 8 were made.
During operation; Rinse water get into activated carbon tower 2 from rinse water accumulator tank 1 and tentatively filter; Water leg 3 from the effusive rinse water of activated carbon tower get into; The rinse water that promoted through pump by middle water leg 3 get into accurate filter 4 filtrations; Get in the tower bodies 50 by the water inlet pipe 541 of resin cation(R.C.) tower intake-outlet 54 again via tower body 50 bottoms, through with tower body 50 in after resin cation(R.C.) 53 reactions from tower body 50 top water outlets 55 through rising pipe 553 discharges, pass through the water inlet pipe 641 of next rinse water resin anion(R.A) tower body 60 bottoms again; Get in the tower body 60 from lower water inlet 64, discharge from tower body 60 top intake-outlets 65 and rising pipe 655 with the 63 reaction backs of resin anion(R.A) in the tower body 60.
A kind of process method of electroplating rinse water recycling:
1, electroplating rinse water is collected by rinse water accumulator tank 1, promotes through pump then and gets into activated carbon tower 2, is intended to filter the impurity in the rinse water and reduces COD value (COD) in the waste water; 2 water outlets of activated carbon tower get into relaying tank 3, filter after pump promotes through accurate filter and get into resin cation(R.C.) tower 5, in the resin cation(R.C.) tower, remove the positively charged ion of rinse water, like Cu
2+, Ni
2+, Zn
2+
2, the resin cation(R.C.) tower adopts individual layer floating bed technology, and when promptly normally producing water, waste water gets into from the tower bottom, flows out from tower top, and resin cation(R.C.) 53 is quick condition in tower under the waste water buoyancy function.
The principles of chemistry of resin cation(R.C.) absorption: M
++ R-H---R-M+H
+, wherein: M
+Be positively charged ion in the water, R-H is a resin cation(R.C.).
The resin cation(R.C.) regenerated principles of chemistry: H
++ R-M---R-H+M
+
3, waste water gets into resin anion(R.A) tower 6 after coming out from resin cation(R.C.) tower 5, in resin anion(R.A) tower 6, removes the negatively charged ion in the rinse water.Resin anion(R.A) tower 6 adopts double-deck floating bed technology, promptly divides two portions up and down in the tower.Two portions are adorned the different anions resin respectively: Ta Nei lower floor resin anion(R.A) is mainly removed the strongly-acid negatively charged ion, like SO
4 2+, Cl
-, (Cr
2O
4)
2-The upper strata resin anion(R.A) is mainly removed acidulous anion in the tower, like HCO
3 -The resin anion(R.A) tower goes out water conductivity less than 20 μ s/cm.
The water of native system output is stored in the reuse tank 7, and power supply plating rinsing station is reused.
The resin anion(R.A) absorption principles of chemistry: (CrO
4)
2-+ 2R-OH---R
2-CrO
4+ 2OH
-, wherein R-OH is a resin anion(R.A).
The resin anion(R.A) regeneration principles of chemistry: 2OH
-+ R
2-CrO
4---2R-OH+CrO
4 2-
4, in the native system, activated carbon adsorption tower 2 every product water 100 hours, back washing once produces the back washing water entering Waste Water Treatment processing of water.
5, when the resin anion(R.A) tower product water conductivity that adopts A wire system device is higher than 20 μ s/cm, then launches subsequent use B wire system device and produce water (vice versa), purpose is to be to realize the production line continuous water supply.
6, resin tower produces when water conductivity is higher than 20 μ s/cm and explains that the resin absorption ion is bordering on saturated in this wire system yin, yang resin tower.Need carry out manipulation of regeneration this moment to resin.Resin cation(R.C.) tower 5 uses 10%HCl to regenerate, and promptly annotates pipe 552 through medicine and with tower body 50 top intake-outlets 55 10%HCl is joined in the tower body, uses H
+The metallic cation of resin absorption is exchanged, make resin cation(R.C.) regain exchange capacity; Resin anion(R.A) tower 6 uses 5%NaOH to regenerate, with OH
-The anionresin of resin absorption is got off, make negatively charged ion regain exchange capacity, this wire system resin tower regeneration back is as stand-by still.The method of its resin anion(R.A) tower 6 dosings and concrete operations are to annotate pipe 652 through medicine from tower body 60 top intake-outlets 65 5%NaOH to be joined in the tower body 60.
7, the zwitterion resin tower need separate back washing during back washing; During the back washing of resin cation(R.C.) tower; Back washing water gets in the tower body from bottom intake-outlet 54 through the back washing water inlet pipe 542 of tower body 50 bottoms; Back washing water outlet and resin are imported and exported 56 from the resin of tower body upper side and are discharged, and import and export pipe 561 by resin and get in the back washing tower shown in Figure 4, and back washing water, impurity and broken resin are discharged from the back washing rising pipe 83 on back washing tower top; Return the tower water when back washing finishes and return tower water inlet pipe 84 via resin import and export 87 entering, manage 82 refunds resin cation(R.C.) towers to resin by the resin turnover through pipe core 81 from resin.Be divided into two towers back washing respectively up and down during the back washing of resin cation(R.C.) tower; In the back washing during tower back washing water get in the towers from the upper strata back washing water inlet pipe 542 of tower bottom; Back washing water outlet and resin are discharged from the resin turnover pipe 561 of tower body upper side; Get in the back washing tower shown in Figure 4 by resin turnover pipe 82; Back washing water, impurity and broken resin are discharged from the back washing rising pipe 83 on back washing tower top, return the tower water when back washing finishes and return 84 entering of tower water inlet pipe from resin, manage 82 refunds resin anion(R.A) tower upper stratas to resin by the resin turnover through pipe core 81; Under the back washing during tower back washing water get in the towers from lower floor's back washing water inlet pipe 542 of tower bottom; Back washing water outlet and resin are discharged from the lateral resin turnover of tower pipe 561; Get in the back washing tower shown in Figure 4 by resin turnover pipe 82; Back washing water, impurity and broken resin are discharged from the back washing rising pipe 83 on back washing tower 8 tops, return the tower water when back washing finishes and return 84 entering of tower water inlet pipe from resin, manage 82 refunds resin anion(R.A) towers, 6 lower floors to resin by the resin turnover through pipe core 81.
8, resin tower produced water, two process circulations of regeneration after 60 days, needed to be transplanted on back washing in the resin back washing tower 8 to resin in the yin, yang resin tower respectively, and purpose is resin chip and foreign material in the flushing resin tower.
Claims (6)
1. the device of an electroplating rinse water recycling; It is characterized in that comprising: the cationic resin cation(R.C.) tower (5) in impurity in the rinse water accumulator tank (1) of collection electroplating rinse water, the filtration rinse water and the reduction waste water in the relaying tank (3) of the activated carbon tower (2) of COD value, relay storage electroplating rinse water, accurate filter (4), the removal rinse water, anionic resin anion(R.A) tower (6), the reuse tank (7) of utilization again and the back washing tower (8) of back washing process in the removal rinse water; The activated carbon tower (2) of said system device is made up of two covering devices of activated carbon tower (2A) and activated carbon tower (2B); Accurate filter (4) is made up of accurate filter (4A) and accurate filter (4B) two covering devices, and resin cation(R.C.) tower (5) is made up of resin cation(R.C.) tower (5A) and resin cation(R.C.) tower (5B) two covering devices; Resin anion(R.A) tower (6) is made up of resin anion(R.A) tower (6A) and resin anion(R.A) tower (6B) two covering devices; And form A wire system device by rinse water accumulator tank (1), activated carbon tower (2A), relaying water (3), accurate filter (4A), resin cation(R.C.) tower (5A), resin anion(R.A) tower (6A) and the electroplating rinse water recycling of reuse tank (7) formation according to the needs of technology; And the B wire system device of another electroplating rinse water recycling of rinse water accumulator tank (1), activated carbon tower (2B), relaying tank (3), accurate filter (4B), resin cation(R.C.) tower (5B), resin anion(R.A) tower (6B) and reuse tank (7) formation; According to arts demand; Or the operation of A wire system device, B wire system device is subsequent use; Or the operation of B wire system device, A wire system device is subsequent use.
2. according to the device of the described electroplating rinse water recycling of claim 1; It is characterized in that: double-deck column plate (51) up and down is installed in the tower body (50) of resin cation(R.C.) tower (5); Be shaped on the open hole that is used for installing filter cap (52) on the column plate (51), the filter cap (52) with micro-pore is covered with on column plate (51);
Tower body (50) top of resin cation(R.C.) tower (5) is provided with the top intake-outlet (55) with various cross currents, and its washing water inlet pipe (551), medicine are annotated pipe (552), rising pipe (553), are connected with tower body top intake-outlet (55); Tower body (50) top of resin cation(R.C.) tower (5) also is provided with resin and imports and exports (56); Resin turnover pipe (561) is imported and exported (56) with this resin and is connected; Resin cation(R.C.) (53) is imported and exported (56) through resin turnover pipe (561) and resin and is entered in the tower body; Be deposited on the filter cap (52) of column plate (51), and confirm its ulking thickness according to the needs of technology;
The bottom of tower body (50) is provided with bottom intake-outlet (54), and water inlet pipe (541), back washing water inlet pipe (542), regeneration waste liquid rising pipe (543) are through the intracavity inter-connection of bottom intake-outlet (54) with tower body (50).
3. according to the device of the described electroplating rinse water recycling of claim 1; It is characterized in that: in the tower body (60) of resin anion(R.A) tower (6) column plate (61) is installed; And three layers of column plate pressing upper strata column plate, middle level column plate and lower floor's column plate are arranged; Be shaped on the open hole that is used for installing filter cap (62) on each layer column plate (61); Filter cap (62) with micro-pore is covered with on column plate (61); The resin anion(R.A) (63) that is covered with the required thickness of technology at the middle level column plate with above lower floor's column plate, the top of tower body (60) are provided with to import and export (67) and import and export resin that (66) and tower body lower-layer resin import and export (67) are connected with tower body upper strata resin with the tower body lower-layer resin of washing water inlet pipe (651), medicine are annotated pipe (652), produced water-circulating pipe (654), rising pipe (655) is connected top intake-outlet (65), keep supplying that layer resin packed into or the tower body upper strata resin that takes out usefulness is imported and exported (66), supply lower-layer resin to pack into or taking out usefulness and pass in and out and manage (653);
The bottom of tower body (60) is provided with the tower body bottom water inlet pipe and water outlet pipe (64) that is connected with water inlet pipe (641), upper strata back washing water inlet pipe (642), lower floor's back washing water inlet pipe (643) and regeneration waste liquid rising pipe.
4. according to the device of the described electroplating rinse water recycling of claim 1, it is characterized in that: the back washing rising pipe (83) that tower body (80) top of back washing tower (8) is provided with tower body top intake-outlet (85) and is communicated with it; Tower body (80) bottom is provided with tower body bottom intake-outlet (86); And coupled logical resin turnover pipe (82); Also be provided with resin at the sidepiece of tower body (80) and return tower water inlet pipe (84), and return the resin that tower water inlet pipe (84) is connected with resin and import and export (87) and pipe core (81).
5. according to the device of the described electroplating rinse water recycling of claim 1, it is characterized in that: inner wall of tower was lined with the PVF material line with rubber of acid and alkali-resistance when resin cation(R.C.) tower (5), resin anion(R.A) tower (6) and back washing tower (8) were made.
6. the method for an electroplating rinse water recycling is characterized in that:
A, electroplating rinse water are collected by rinse water accumulator tank (1); Promote through pump then and get into activated carbon tower (2); Activated carbon tower (2) water outlet gets into relaying tank (3); Filter after pump promotes entering resin cation(R.C.) tower (5) through accurate filter, in the resin cation(R.C.) tower, remove the positively charged ion of rinse water, like Cu
2+, Ni
2+, Zn
2+
B, resin cation(R.C.) tower adopt individual layer floating bed technology, and when promptly normally producing water, waste water gets into from the tower bottom, flows out from tower top, and resin cation(R.C.) under the waste water buoyancy function (53) is quick condition in tower;
The principles of chemistry of resin cation(R.C.) absorption: M
++ R-H---R-M+H
+, wherein: M
+Be positively charged ion in the water, R-H is a resin cation(R.C.);
The resin cation(R.C.) regenerated principles of chemistry: H
++ R-M---R-H+M
+
C, waste water get into resin anion(R.A) tower (6) after coming out from resin cation(R.C.) tower (5); In resin anion(R.A) tower (6), remove the negatively charged ion in the rinse water; Resin anion(R.A) tower (6) adopts double-deck floating bed technology; Be to divide two portions up and down in the tower, two portions are adorned the different anions resin respectively: Ta Nei lower floor resin anion(R.A) is mainly removed the strongly-acid negatively charged ion, like SO
4 2+, Cl
-, (Cr
2O
4)
2-The upper strata resin anion(R.A) is mainly removed acidulous anion in the tower, like HCO
3 -, the resin anion(R.A) tower goes out water conductivity less than 20 μ s/cm;
The water of native system output is stored in the reuse tank (7), and power supply plating rinsing station is reused;
The resin anion(R.A) absorption principles of chemistry: (CrO
4)
2-+ 2R-OH---R
2-CrO
4+ 2OH
-, wherein R-OH is a resin anion(R.A);
The resin anion(R.A) regeneration principles of chemistry: 2OH
-+ R
2-CrO
4---R-OH+CrO
4 2-
In d, the native system, activated carbon adsorption tower 2 every product water 100 hours, back washing once produces the back washing water entering Waste Water Treatment processing of water;
E, when the resin anion(R.A) tower that adopts A wire system device produces water conductivity and is higher than 20 μ s/cm, then launch subsequent use B wire system device and produce water, purpose is to be that the production line free of discontinuities supplies water;
F, resin tower produce when water conductivity is higher than 20 μ s/cm and explain that the resin absorption ion is bordering on saturated in this wire system yin, yang resin tower; Need carry out manipulation of regeneration this moment to resin; Resin cation(R.C.) tower (5) uses 10%HCl to regenerate; Promptly 10%HCl is joined in the tower body (50), use H through medicine notes pipes (552) and tower body (50) top intake-outlet (55)
+The metallic cation of resin absorption is exchanged, make resin cation(R.C.) regain exchange capacity; Resin anion(R.A) tower (6) uses 5%NaOH to regenerate, with OH
-The anionresin of resin absorption is got off; Make negatively charged ion regain exchange capacity; As stand-by still, the method for its resin anion(R.A) tower (6) dosing and concrete operations are through medicine notes pipes (652) and tower body (60) top intake-outlet (65) 5%NaOH to be joined in the tower body (60) with this good back of cover resin tower regeneration;
The zwitterion resin tower need separate back washing when g, back washing; During the back washing of resin cation(R.C.) tower; Back washing water gets in the tower body from the back washing water inlet pipe (542) and the bottom intake-outlet (54) of tower body (50) bottom, and back washing water outlet and resin are imported and exported (56) from the resin of tower body upper side and discharged, and imports and exports pipe (561) by resin and gets in the back washing tower; Back washing water, impurity and broken resin are discharged from the back washing rising pipe (83) on back washing tower top; Return the tower water when back washing finishes and return tower water inlet pipe (84) entering, manage (82) refunds resin cation(R.C.) tower to resin by the resin turnover, be divided into two towers back washing respectively up and down during the back washing of resin cation(R.C.) tower through pipe core (81) from resin; In the back washing during tower back washing water get in the tower from the upper strata back washing water inlet pipe (542) of tower bottom; Back washing water outlet and resin are discharged from the resin turnover pipe (561) of tower body upper side, are got in the back washing tower (8) by resin turnover pipe (82), and back washing water, impurity and broken resin are discharged from the back washing rising pipe (83) on back washing tower top; Return the tower water when back washing finishes and return tower water inlet pipe (84) entering, manage (82) refunds resin anion(R.A) tower upper strata to resin by the resin turnover through pipe core (81) from resin; Under the back washing during tower back washing water get in the tower from lower floor's back washing water inlet pipe (542) of tower bottom; Back washing water outlet and resin are discharged from the lateral resin turnover pipe of tower (561); Get in the back washing tower (8) by resin turnover pipe 82; Back washing water, impurity and broken resin are discharged from the back washing rising pipe (83) on back washing tower (8) top, return the tower water when back washing finishes and return tower water inlet pipe (84) entering from resin, manage (82) refunds resin anion(R.A) tower (6) lower floor to resin by the resin turnover through pipe core (81);
H, resin tower produced water, two process circulations of regeneration after 60 days, needed to be transplanted on the interior back washing of resin back washing tower (8) to resin in the yin, yang resin tower respectively, and purpose is resin chip and foreign material in the flushing resin tower.
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| CN103663792A (en) * | 2013-12-12 | 2014-03-26 | 长乐恒申合纤科技有限公司 | Nylon recycling extraction water filtering system and process |
| CN105565532A (en) * | 2014-10-08 | 2016-05-11 | 深圳市汇利龙科技有限公司 | Zero-discharge on-line treatment process for preparing deionized water from copper sulphate electroplating wastewater |
| CN106987877A (en) * | 2017-04-01 | 2017-07-28 | 厦门建霖工业有限公司 | A kind of plastic electroplating colloid Palladium recovery and the system and method for Water circulation |
| CN107520190A (en) * | 2017-09-15 | 2017-12-29 | 深圳宇熠诚环保设备有限公司 | Water recycling device and its method are rinsed after anodic oxidation |
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| CN106987877A (en) * | 2017-04-01 | 2017-07-28 | 厦门建霖工业有限公司 | A kind of plastic electroplating colloid Palladium recovery and the system and method for Water circulation |
| CN107520190A (en) * | 2017-09-15 | 2017-12-29 | 深圳宇熠诚环保设备有限公司 | Water recycling device and its method are rinsed after anodic oxidation |
| CN115159722A (en) * | 2022-06-23 | 2022-10-11 | 嘉戎技术(北京)有限公司 | Electroplating rinsing wastewater efficient recovery system and method thereof |
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