CN212655517U - Dual-mode switching operation metallurgical wastewater softening device - Google Patents

Dual-mode switching operation metallurgical wastewater softening device Download PDF

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CN212655517U
CN212655517U CN202020362867.2U CN202020362867U CN212655517U CN 212655517 U CN212655517 U CN 212655517U CN 202020362867 U CN202020362867 U CN 202020362867U CN 212655517 U CN212655517 U CN 212655517U
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water
pipe
cascade
ion exchanger
pipes
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CN202020362867.2U
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刘丽荣
王惠杰
牛红建
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Shijiazhuang Iron and Steel Co Ltd
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Shijiazhuang Iron and Steel Co Ltd
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Abstract

The utility model provides a metallurgical waste water softening installation of dual mode switching operation, belongs to industrial water waste water treatment equipment technical field for carry out softening treatment to metallurgical waste water. The technical scheme is as follows: the water delivery tank is respectively connected with the water inlet pipes of the three ion exchangers through a water feeding pump and a water delivery pipe, the water outlet pipes of the three ion exchangers are respectively connected with the water production tank through water production pipes, the water inlet pipe of the first ion exchanger is connected with the water outlet pipe of the third ion exchanger through a first cascade water supply pipe, the water inlet pipe of the second ion exchanger is connected with the water outlet pipe of the first ion exchanger through a second cascade water supply pipe, the water inlet pipe of the third ion exchanger is connected with the water outlet pipe of the second ion exchanger through a third cascade water supply pipe, and hardness instruments are respectively arranged on the water outlet pipes of the three ion exchangers. The utility model discloses a parallelly connected, two kinds of mode switch operations of establishing ties, under the prerequisite of guaranteeing to produce water quality of water, can reduce the investment, reduce regeneration consumption, reduce the operating cost, reduce environmental pollution.

Description

Dual-mode switching operation metallurgical wastewater softening device
Technical Field
The utility model relates to a metallurgical waste water softening installation that can realize double mode switching operation belongs to industrial water waste water treatment equipment technical field.
Background
In the production of metallurgical enterprises, sewage treatment is an important content of the environmental protection work of the enterprises. The key of metallurgical enterprises for realizing zero discharge of sewage is the treatment of strong brine generated by plant wastewater desalination. Because the strong brine has high salt content, the strong brine needs to be softened before being subjected to reverse osmosis concentration, the softening process is closely related to the quality of the strong brine, but the water quality fluctuation of the strong brine is large due to the influence of temperature, seasons and pollution discharge conditions of a circulating water system, and the softening result is greatly influenced. At present, hardness ions are generally removed by ion exchange resin in a method for softening water, Na + is generally selected for replacement in the process, and the ion exchange resin after saturated exchange is regenerated by Nacl. The main disadvantages of this process are the rather high Nacl consumption, the environmental problems and the uneconomic nature. In addition, the weak acid cation resin is selected to remove hardness ions, and the series process is adopted, so that the effluent quality is reliable, but the regeneration is carried out at different time, and the operation cost is high; the other is a parallel process, which has low operation cost and less investment, but has poor tolerance to the fluctuation of the quality of the inlet water, and the quality of the produced water is easy to be unqualified.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a metallurgical waste water softening installation of operation is switched to dual mode is provided, and this kind of softening installation can switch the selection according to the play water hardness of waste water and connect in parallel or establish ties the operation, reaches qualified softening effect, can reduce the consumption of regenerant simultaneously, reduces the operating cost and to the influence of environment.
The technical scheme for solving the technical problems is as follows:
a dual-mode switching operation metallurgical wastewater softening device comprises a water delivery tank, a water feeding pump, a water delivery pipe, a water production tank, a water production pipe, acid-base regeneration pipes, three ion exchangers, a water discharge pipe and sodium type weak acid cation resin, wherein the water delivery tank is respectively connected with water inlet pipes of the three ion exchangers through the water feeding pump and the water delivery pipe, water outlet pipes of the three ion exchangers are respectively connected with the water production tank through the water production pipe, regeneration pipes of the three ion exchangers are respectively connected with the acid-base regeneration pipes, water discharge pipes of the three ion exchangers are connected with a wastewater pipeline, the device also comprises cascade water supply pipes, a water inlet pipe of the first ion exchanger is connected with a water outlet pipe of the third ion exchanger through a first cascade water supply pipe, a water inlet pipe of the second ion exchanger is connected with a water outlet pipe of the first ion exchanger through a second cascade water supply pipe, a water inlet pipe of the third ion exchanger is connected with a water outlet pipe of the second ion exchanger through, sodium type weak acid cation resin is respectively filled in the three ion exchangers, and hardness instruments are respectively arranged on water outlet pipes of the three ion exchangers.
According to the double-mode switching operation metallurgical wastewater softening device, the water inlet pipe and the water outlet pipe of the three ion exchangers are respectively provided with the first water inlet valve, the second water inlet valve, the third water inlet valve, the first water outlet valve, the second water outlet valve and the third water outlet valve, and the first cascade valve, the second cascade valve and the third cascade valve are respectively arranged on the first cascade water supply pipe, the second cascade water supply pipe and the third cascade water supply pipe.
The utility model has the advantages that:
the utility model discloses a three ion exchanger's inlet tube and outlet pipe are connected with the raceway respectively and produce the water pipe, form the parallel operation mode, and three ion exchanger's inlet tube and outlet pipe are connected through the feed pipe of cascade respectively simultaneously, form parallelly connected, two kinds of operational modes of doublestage series connection. When the salt content of the inlet water is low, the three ion exchangers run in parallel, water is pumped by a water feeding pump, and the produced water directly enters a water producing pool. The water production reaches the standard, and the ion exchanger is regenerated at the same time; when the salt content of the inlet water is high, the inlet water is switched by the cascade valve, the inlet water runs in a series running mode, and three-stage circulation is performed.
The utility model has the advantages of novel and reasonable structure, according to the change of strong brine quality of water, select best system water operational mode, realize parallelly connected, two kinds of mode switch operations of establishing ties, under the prerequisite of guaranteeing to produce water quality of water, can reduce the investment, reduce regeneration consumption, reduce the operating cost, reduce environmental pollution, reduced manufacturing cost effectively, improved the economic benefits of enterprise, protected the environment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figures are labeled as follows: the device comprises a water conveying pool 1, a water feeding pump 2, a water conveying pipe 3, a water inlet pipe 4, a water outlet pipe 5, a first ion exchanger 6, a second ion exchanger 7, a third ion exchanger 8, a first water inlet valve 9, a second water inlet valve 10, a third water inlet valve 11, a first water outlet valve 12, a second water outlet valve 13, a third water outlet valve 14, a first cascade water feeding pipe 15, a second cascade water feeding pipe 16, a third cascade water feeding pipe 17, a first cascade valve 18, a second cascade valve 19, a third cascade valve 20, a water discharging pipe 21, an acid-base regeneration pipe 22, a hardness instrument 23, sodium type weak acid cation resin 24, a water production pipe 25 and a water production pool 26.
Detailed Description
The utility model discloses by delivery pool 1, feed pump 2, raceway 3, produce water pipe 25, produce pond 26, first ion exchanger 6, second ion exchanger 7, third ion exchanger 8, acid-base regenerating tube 22, hardness appearance 23, sodium type weak acid cation resin 24 and constitute.
The figure shows that the three ion exchangers are respectively provided with a water inlet pipe 4, a water outlet pipe 5 and a water outlet pipe 21, a cascade water supply pipe is also connected between the water inlet pipe 4 and the water outlet pipe 5, and a water inlet valve, a water outlet valve and a cascade valve are respectively arranged on the water inlet pipe 4, the water outlet pipe 5 and the cascade water supply pipe. Sodium type weak acid cation resin 24 is respectively filled in the three ion exchangers, the three ion exchanger regeneration pipes are respectively connected with acid-base regeneration pipes 22, and drain pipes 21 of the three ion exchangers are connected with a wastewater pipeline.
The figure shows that a water conveying pool 1 is respectively connected with water inlet pipes 4 of three ion exchangers through a water feeding pump 2 and a water conveying pipe 3, water outlet pipes 5 of the three ion exchangers are respectively connected with a water producing pool 26 through water producing pipes 25 to form a parallel operation mode, water is fed through the water feeding pump 2, and produced water directly enters the water producing pool 26.
In the figure, the water inlet pipe 4 of the first ion exchanger 6 is connected with the water outlet pipe 5 of the third ion exchanger 8 by the first cascade water supply pipe 15, the water inlet pipe 4 of the second ion exchanger 7 is connected with the water outlet pipe 5 of the first ion exchanger 6 by the second cascade water supply pipe 16, and the water inlet pipe 4 of the third ion exchanger 8 is connected with the water outlet pipe 5 of the second ion exchanger 7 by the third cascade water supply pipe 17, so as to form a two-stage series operation mode.
The water inlet pipe 4 of the first ion exchanger 6 is connected with the water pipe 3 and the first cascade water supply pipe 15, the water inlet pipe 4 of the second ion exchanger 7 is connected with the water pipe 3 and the second cascade water supply pipe 16, and the water inlet pipe 4 of the third ion exchanger 8 is connected with the water pipe 3 and the third cascade water supply pipe 17. The water inlet pipe 4 of each ion exchanger can be switched between a parallel connection mode and a series connection mode according to different conditions of water quality by feeding water through the water conveying pipe 3 and feeding water through the cascade water feeding pipe.
In the figure, a first water inlet valve 9, a second water inlet valve 10, a third water inlet valve 11, a first water outlet valve 12, a second water outlet valve 13 and a third water outlet valve 14 are respectively installed on a water inlet pipe 4 and a water outlet pipe 5 of a first ion exchanger 6, a second ion exchanger 7 and a third ion exchanger 8, and are used for controlling the water inlet and the water outlet of the ion exchangers.
In the figure, a first cascade valve 18, a second cascade valve 19 and a third cascade valve 20 are respectively installed on a first cascade water feed pipe 15, a second cascade water feed pipe 16 and a third cascade water feed pipe 17, and are used for controlling water feeding to three ion exchangers through the cascade water feed pipes.
The figure shows that hardness meters 23 are respectively arranged on water outlet pipes 5 of three ion exchangers and used for detecting the water hardness of the ion exchangers, and if the numerical value exceeds the standard, the hardness meters 23 give an alarm to remind workers to process.
The working process of the utility model is as follows:
when the parallel operation is carried out, three ion exchangers 2 are provided with 1. The feed pump 2 extracts strong brine from the water delivery pool 1 and delivers the strong brine to the first ion exchanger 6 and the second ion exchanger 7 through the water delivery pipe 3. The first water inlet valve 9 and the second water inlet valve 10 of the first ion exchanger 6 and the second ion exchanger 7, the first water outlet valve 12 and the second water outlet valve 13 are respectively opened, the strong brine enters the first ion exchanger 6 and the second ion exchanger 7 from the water conveying pipe 3, and the product water enters the water production pool 26 through the water production pipe 25.
When the quality of the concentrated brine is poor and the hardness of produced water exceeds the standard, the hardness meter 23 gives an alarm, and an operator performs switching operation to convert the operation into cascade operation of the first ion exchanger 6 and the second ion exchanger 7.
The first water outlet valve 12 of the first ion exchanger 6 and the second water inlet valve 10 of the second ion exchanger 7 are closed, the first cascade valve 18 of the first cascade water supply pipe 15 is opened, the strong brine in the water delivery pond 1 is pressurized and sent to the first ion exchanger 6 through the water supply pump 2, the excess pressure of the outlet water enters the second ion exchanger 7 for retreatment, the outlet water enters the water production pond 26 through the water production pipe 25, and the quality of the outlet water is ensured.
When the first ion exchanger 6 fails, the operation mode is switched to the cascade operation mode of the second ion exchanger 7 and the third ion exchanger 8. A first water inlet valve 9 of the first ion exchanger 6 and a first cascade valve 18 of the first cascade water supply pipe 15 are closed, a second water inlet valve 10 of the second ion exchanger 7 and a second cascade valve 19 of the second cascade water supply pipe 16 are opened, a third water outlet valve 14 of the third ion exchanger 8 is opened, the concentrated brine in the water delivery pond 1 is pressurized and sent to the second ion exchanger 7 through the water supply pump 2, the produced water residual pressure is treated again by the third ion exchanger 8, and the produced water enters a water production pond 26 through a water production pipe 25.
When the second ion exchanger 7 fails, the operation mode is switched to the cascade operation mode of the third ion exchanger 8 and the first ion exchanger 6. The circulating operation is performed in sequence, the two-stage series operation of the strong brine is ensured, and the zero hardness of the produced water is achieved.
The utility model discloses an embodiment as follows:
the model of the feed water pump 2 is KQWH 100-200A;
the diameter of the water delivery pipe 3 is 125 mm;
the diameter of the water production pipe 25 is 125 mm;
the first ion exchanger 6, the second ion exchanger 7 and the third ion exchanger 8 are SFHR 2500;
the models of the first water inlet valve 9, the second water inlet valve 10 and the third water inlet valve 11 are S30-10-125 (valve plate nylon coating);
the first water outlet valve 12, the second water outlet valve 13 and the third water outlet valve 14 are in the model S30-10-125 (valve plate nylon coating);
the diameters of the first cascade water supply pipe 15, the second cascade water supply pipe 16 and the third cascade water supply pipe 17 are 125 mm;
the first cascade valve 18, the second cascade valve 19 and the third cascade valve 20 are in the type S30-10-125 (valve plate nylon coating);
the model of the hardness tester 23 is APA 6000;
the sodium weak acid cation resin 24 is model number ICR 83.

Claims (2)

1. A dual-mode switching operation metallurgical wastewater softening device is characterized in that: the device comprises a water delivery pool (1), a water feeding pump (2), a water delivery pipe (3), a water production pipe (25), a water production pool (26), acid-base regeneration pipes (22), three ion exchangers, a water discharge pipe (21), a hardness meter (23) and sodium type weak acid cation resin (24), wherein the water delivery pool (1) is respectively connected with water inlet pipes (4) of the three ion exchangers through the water feeding pump (2) and the water delivery pipe (3), water outlet pipes (5) of the three ion exchangers are respectively connected with the water production pool (26) through the water production pipe (25), the regeneration pipes of the three ion exchangers are respectively connected with the acid-base regeneration pipes (22), the water discharge pipes (21) of the three ion exchangers are connected with a waste water pipeline, the device also comprises cascade water supply pipes, the water inlet pipe (4) of a first ion exchanger (6) is connected with the water outlet pipe (5) of a third ion exchanger (8) through a first cascade water supply pipe (15), the water inlet pipe (4) of the second ion exchanger (7) is connected with the water outlet pipe (5) of the first ion exchanger (6) through a second cascade water supply pipe (16), the water inlet pipe (4) of the third ion exchanger (8) is connected with the water outlet pipe (5) of the second ion exchanger (7) through a third cascade water supply pipe (17), sodium type weak acid cation resin (24) is filled in the three ion exchangers respectively, and hardness instruments (23) are installed on the water outlet pipes (5) of the three ion exchangers respectively.
2. A dual mode switch mode metallurgical wastewater softening plant according to claim 1, wherein: a first water inlet valve (9), a second water inlet valve (10), a third water inlet valve (11), a first water outlet valve (12), a second water outlet valve (13) and a third water outlet valve (14) are respectively arranged on a water inlet pipe (4) and a water outlet pipe (5) of the three ion exchangers, and a first cascade valve (18), a second cascade valve (19) and a third cascade valve (20) are respectively arranged on a first cascade water supply pipe (15), a second cascade water supply pipe (16) and a third cascade water supply pipe (17).
CN202020362867.2U 2020-03-20 2020-03-20 Dual-mode switching operation metallurgical wastewater softening device Active CN212655517U (en)

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Application Number Priority Date Filing Date Title
CN202020362867.2U CN212655517U (en) 2020-03-20 2020-03-20 Dual-mode switching operation metallurgical wastewater softening device

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113562810A (en) * 2021-09-27 2021-10-29 高频美特利环境科技(北京)有限公司 Series operation equipment and switching method thereof
CN117105489A (en) * 2023-10-24 2023-11-24 山东裕能电力器材有限公司 Electroplating wastewater purification treatment adjusting system for electroplating production line and working method
WO2023231062A1 (en) * 2022-05-30 2023-12-07 开能健康科技集团股份有限公司 Water softening structure and regeneration method therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113562810A (en) * 2021-09-27 2021-10-29 高频美特利环境科技(北京)有限公司 Series operation equipment and switching method thereof
WO2023231062A1 (en) * 2022-05-30 2023-12-07 开能健康科技集团股份有限公司 Water softening structure and regeneration method therefor
CN117105489A (en) * 2023-10-24 2023-11-24 山东裕能电力器材有限公司 Electroplating wastewater purification treatment adjusting system for electroplating production line and working method

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