CN216273367U

CN216273367U - Ion exchange resin regeneration waste water filter

Info

Publication number: CN216273367U
Application number: CN202122134719.2U
Authority: CN
Inventors: 刘和德; 陈玉成; 王冬林
Original assignee: Hefei Woteng Membrane Separation Equipment Co ltd
Current assignee: Hefei Woteng Membrane Separation Equipment Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-04-12
Anticipated expiration: 2031-09-06

Abstract

The application discloses a filter for ion exchange resin regeneration wastewater, which belongs to the technical field of waste liquid treatment and comprises a raw liquid tank, a feeding pump, a bag filter, a high-pressure pump, a membrane separation assembly and a water production tank which are sequentially connected through pipelines, wherein a concentrated water tank is connected outside the membrane separation assembly; the membrane separation assembly comprises a circulating pump and a filtering set, a nano filter element is arranged in the membrane shell, the circulating pump is connected between the membrane shell and the high-pressure pump, and a fresh water port of the membrane shell is communicated with the water production tank; a mixed water tank is arranged outside the membrane separation unit, a circulating pipe is arranged at the top of the mixed water tank and connected between the mixed water tank and the membrane shell concentrated water port, and a return pipe communicated with a feed pump is connected at the bottom of the mixed water tank; the top of the mixing water tank is connected with a water adding pipe connected with deionized water; the membrane shell concentrated water port is also connected with a concentrated water pipe communicated with the concentrated water tank, and the concentrated water pipe is provided with a drain valve. The method has the effects of reducing the treatment cost of acid-base wastewater and recycling waste acid and waste alkali.

Description

Ion exchange resin regeneration waste water filter

Technical Field

The application relates to the technical field of waste liquid treatment, more specifically relates to an ion exchange resin regeneration waste water filter.

Background

In the regeneration process of the ion exchange bed, a large amount of regeneration liquid is used for regenerating the regenerated resin, and the conventional regeneration liquid comprises 5-10% of hydrochloric acid, alkali and 10-15% of sodium chloride. Therefore, the waste water discharged by the process contains a large amount of acid or alkali, and in order to meet the requirement of environmental protection discharge, the waste water is generally neutralized by using corresponding alkali or acid, the treatment cost is high, and the waste acid and the waste alkali are difficult to recycle.

In view of the above-mentioned related technologies, the inventor believes that the treatment cost for acid-base wastewater is high, and the waste acid and the waste alkali are difficult to recycle.

SUMMERY OF THE UTILITY MODEL

In order to reduce the treatment cost to acid-base waste water, to waste acid and waste alkali recycle, this application provides an ion exchange resin regeneration waste water filter.

The application provides a filter for ion exchange resin regeneration wastewater adopts following technical scheme:

a filter for ion exchange resin regeneration wastewater comprises a raw liquid tank, a feeding pump, a bag filter, a high-pressure pump, a membrane separation assembly and a water production tank which are sequentially connected through pipelines, wherein a concentrated water tank is connected outside the membrane separation assembly; the membrane separation assembly comprises a circulating pump and a filtering set, the filtering set comprises four membrane shells connected in parallel, a nano filter element is installed in each membrane shell, the circulating pump is connected between the membrane shells and the high-pressure pump, and a fresh water port of each membrane shell is communicated with the water production tank; a mixed water tank is arranged outside the membrane separation unit, a circulating pipe is arranged at the top of the mixed water tank and connected between the mixed water tank and the concentrated water port of the membrane shell, and a return pipe communicated with the feed pump is connected to the bottom of the mixed water tank; the top of the mixing water tank is connected with a water adding pipe connected with deionized water; the membrane shell concentrated water port is also connected with a concentrated water pipe communicated with the concentrated water tank, and a drain valve is installed on the concentrated water pipe.

Furthermore, the two groups of mixing water tanks are arranged, and switching valves are arranged on circulating pipes on the two groups of mixing water tanks.

Further, still include integrated frame, feed pump, bag filter, high-pressure pump, membrane separation module all install in integrated frame.

In summary, the present application includes at least one of the following advantageous technical effects:

(1) when the waste acid and waste alkali treatment is carried out, the feed pump is started, the raw material in the raw material tank is pumped to pass through the bag filter, so that particles in the raw material are filtered, meanwhile, the high-pressure pump is started, the filtered raw material enters the membrane separation assembly, the circulating pump is started in the membrane separation assembly, the pumped raw material liquid enters four membrane shells which are arranged in parallel in the filter group, the nanometer filter element in the membrane shells separates out the waste acid or waste alkali in the raw material, so that the waste acid or waste alkali is purified and concentrated, then the concentrated waste acid or waste alkali enters the mixed water tank, deionized water is introduced into the mixed water tank, the mixed liquid is further purified through the feed pump and is sequentially circulated, thereby the chromaticity, multivalent ions and macromolecular organic matters in the waste acid and waste alkali are removed through a pure physical filtration method, compared with the traditional chemical treatment method, the treatment cost for acid-base wastewater is reduced, the recycling of waste acid and waste alkali is facilitated;

(2) the two groups of mixing water tanks are arranged, so that the mixing water tanks can be alternately used, and the mixing efficiency of concentrated waste acid and waste alkali is improved;

(3) the integrated layout has small occupied area and is beneficial to plant layout.

Drawings

FIG. 1 is a schematic view showing a filter for ion exchange resin regeneration wastewater according to an embodiment;

fig. 2 is a schematic view of an installation structure of the integrated chassis according to the second embodiment.

The reference numbers in the figures illustrate:

1. a stock solution tank; 2. a feed pump; 3. a bag filter; 4. a high pressure pump; 5. a membrane separation module; 51. A circulation pump; 52. a filtration group; 6. a water producing tank; 7. a concentrated water tank; 71. a concentrated water pipe; 72. a drain valve; 8. a mixing water tank; 81. a circulation pipe; 82. a switching valve; 83. a water feeding pipe; 84. a return pipe; 9. and (4) integrating the frame.

Detailed Description

The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The present application is described in further detail below with reference to the attached drawings.

The first embodiment.

The embodiment of the application discloses a filter for ion exchange resin regeneration wastewater, please refer to fig. 1, which comprises a stock solution tank 1, a feed pump 2, a bag filter 3, a high pressure pump 4, a membrane separation assembly 5 and a water production tank 6 which are connected in sequence through pipelines, wherein the membrane separation assembly 5 is externally connected with a concentrated water tank 7. Wherein, the feed pump 2 can be selected from a horizontal waste-resistant hydrochloric acid fluorine plastic pump, and the bag filter 3 can be selected from a 25 micron UPVC filter, and is used for safely filtering the waste hydrochloric acid before entering the high-pressure pump 4. And high-pressure pump 4 can select to use acid-resistant material casting high-pressure pump 4 for pressurize the waste hydrochloric acid through the filter, adopt frequency conversion control, can adjust the governing valve of converter frequency and nanometer filter core outlet pipeline jointly the pressure and the flow of governing system like this, let the steady operation of system.

Referring to fig. 1, the membrane separation assembly 5 includes a circulation pump 51 and a filtration group 52, the filtration group 52 includes four membrane shells connected in parallel, a nano filter element is installed in the membrane shell, the nano filter element can be a WTM-WAAR-100 type acid and alkali resistant nano filter element, the circulation pump 51 is connected between the membrane shell and the high pressure pump 4, and a fresh water port of the membrane shell is communicated with the water production tank 6. In the present embodiment, three sets of membrane separation modules 5 are provided in total to enhance the separation efficiency. The membrane separation group is externally provided with a mixed water tank 8, the top of the mixed water tank 8 is provided with a circulating pipe 81, the circulating pipe 81 is connected between the mixed water tank 8 and the membrane shell concentrated water port, and the bottom of the mixed water tank 8 is connected with a return pipe 84 communicated with the feed pump 2. The top of the mixing water tank 8 is connected with a water adding pipe 83 for connecting deionized water. The two groups of mixing water tanks 8 are provided, and the switching valves 82 are installed on the circulating pipes 81 on the two groups of mixing water tanks 8. The membrane shell concentrated water port is also connected with a concentrated water pipe 71 communicated with the concentrated water tank 7, and a drain valve 72 is arranged on the concentrated water pipe 71.

The implementation principle of the ion exchange resin regeneration wastewater filter provided by the embodiment of the application is as follows: when the waste acid and the waste alkali are treated, the feed pump 2 is started, the raw material in the raw material tank 1 is pumped to pass through the bag filter 3, so that particles in the raw material are filtered, meanwhile, the high-pressure pump 4 is started, the filtered raw material enters the membrane separation assembly 5, in the membrane separation assembly 5, the circulating pump 51 is started, the pumped raw material liquid enters four membrane shells which are arranged in parallel in the filter group 52, the nanometer filter elements in the membrane shells separate the waste acid or the waste alkali in the raw material, so that the waste acid or the waste alkali is purified and concentrated, then the concentrated waste acid or the waste alkali enters the mixed water tank 8, deionized water is introduced into the mixed water tank 8, the mixed liquid is further purified through the feed pump 2 and is sequentially circulated, thereby the chromaticity, multivalent ions and macromolecular organic matters in the waste acid and the waste alkali are removed through a pure physical filtering method, compared with the traditional chemical treatment method, the treatment cost of acid-base wastewater is reduced, and the recycling of waste acid and waste base is facilitated.

Example two.

The difference between this embodiment and the first embodiment is: referring to fig. 2, the ion exchange resin regeneration wastewater filter further comprises an integrated frame 9, and the nano filter is only provided with one set of membrane separation assembly 5, and the feed pump 2, the bag filter 3, the high pressure pump 4 and the membrane separation assembly 5 are all installed on the integrated frame 9. And the installation mode of the integrated frame 9 is adopted, so that the occupied area is small, and the plant layout is facilitated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an ion exchange resin regeneration waste water filter which characterized in that: the device comprises a raw liquid tank (1), a feeding pump (2), a bag filter (3), a high-pressure pump (4), a membrane separation component (5) and a water production tank (6) which are sequentially connected through pipelines, wherein a concentrated water tank (7) is connected outside the membrane separation component (5); the membrane separation assembly (5) comprises a circulating pump (51) and a filtering group (52), the filtering group (52) comprises four membrane shells connected in parallel, a nano filter element is installed in each membrane shell, the circulating pump (51) is connected between the membrane shells and the high-pressure pump (4), and a fresh water port of each membrane shell is communicated with the water production tank (6); a mixed water tank (8) is arranged outside the membrane separation unit, a circulating pipe (81) is arranged at the top of the mixed water tank (8), the circulating pipe (81) is connected between the mixed water tank (8) and a concentrated water port of the membrane shell, and a return pipe (84) communicated with the feed pump (2) is connected to the bottom of the mixed water tank (8); the top of the mixed water tank (8) is connected with a water adding pipe (83) connected with deionized water; the concentrated water port of the membrane shell is also connected with a concentrated water pipe (71) communicated with the concentrated water tank (7), and a drain valve (72) is installed on the concentrated water pipe (71).

2. The ion exchange resin regeneration wastewater filter according to claim 1, wherein: the two groups of mixing water tanks (8) are arranged, and switching valves (82) are installed on circulating pipes (81) on the two groups of mixing water tanks (8).

3. The ion exchange resin regeneration wastewater filter according to claim 1, wherein: the membrane separation device is characterized by further comprising an integrated frame (9), wherein the feeding pump (2), the bag type filter (3), the high-pressure pump (4) and the membrane separation assembly (5) are all installed on the integrated frame (9).