CN219058765U

CN219058765U - Phenol-containing wastewater treatment system

Info

Publication number: CN219058765U
Application number: CN202223414414.8U
Authority: CN
Inventors: 刘少磊; 刘正建; 耿瑜; 迟明杰; 姜佳雯
Original assignee: Qingdao Kangjinghui Environmental Technology Group Co ltd
Current assignee: Qingdao Kangjinghui Environmental Technology Group Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-05-23
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a phenol-containing wastewater treatment system, which belongs to the technical field of phenol-containing wastewater treatment and comprises a raw liquid tank, wherein the raw liquid tank is fixedly connected with a raw liquid pump through a connecting pipe, the raw liquid pump is fixedly connected with a PH adjusting tank through a connecting pipe, the PH adjusting tank is fixedly connected with a neutralization tank discharging pump through a connecting pipe, and the neutralization tank discharging pump is fixedly connected with integrated equipment; through one effect defroster, two effect defroster and three effect defroster, adopt multistage defogging, defogging is efficient, can protect equipment at the back can not be corroded by the material, still be furnished with automatic nozzle simultaneously, keep the moist and the cleanness of defroster, can follow big to little liquid droplet in the secondary steam of getting rid of, further reduce the product loss, the distilled water quality of purified water, processing system has great adaptability, technological parameter has the surplus, the system has stronger shock load capacity that shocks resistance, can guarantee long-term safe and stable effectively to operate, whole device is rational in infrastructure, and convenient to use, the practicality is strong.

Description

Phenol-containing wastewater treatment system

Technical Field

The utility model relates to the technical field of phenol-containing wastewater treatment, in particular to a phenol-containing wastewater treatment system.

Background

High-salt and high-concentration phenolic wastewater is produced in production enterprises of coking plants, gas plants, oil refineries and the like, has the characteristics of complex components, large amount of refractory substances and large harm, mainly contains tar, ammonia, phenolic and other refractory pollutants, and can pollute the land if directly discharged without treatment, so that the three wastes are treated according to national industrial policies, and the sewage is urgently treated.

At present, the main treatment process methods of the wastewater mainly comprise a microbial degradation method, an extraction method, an active carbon adsorption method, a chemical oxidation method and the like, and although the methods can treat the phenol-containing wastewater, certain defects are also caused, the extraction method is taken as an example, the extraction method has a good treatment effect on the high phenol-containing wastewater, but the treatment can be completed only by carrying out extraction and back extraction for many times, the process is very complex, the investment is large, the treatment cost is high, and the large-scale popularization is difficult.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the defects existing in the prior art, the utility model aims to provide a phenolic wastewater treatment system which has the characteristic of reducing the working strength of workers.

(2) Technical proposal

In order to achieve the above-mentioned purpose, the utility model provides a phenolic wastewater treatment system, which comprises a raw liquid tank, wherein the raw liquid tank is fixedly connected with a raw liquid pump through a connecting pipe, the raw liquid pump is fixedly connected with a PH adjusting tank through a connecting pipe, the PH adjusting tank is fixedly connected with a neutralization tank discharging pump through a connecting pipe, the neutralization tank discharging pump is fixedly connected with integrated equipment, the PH adjusting tank and the integrated equipment are respectively and fixedly connected with a sodium hydroxide unit, a PAC unit, a demulsifier unit and a PAM unit through connecting pipes, the integrated equipment is fixedly connected with a filter press feeding pump through a connecting pipe, the filter press feeding pump is fixedly connected with a filter press through a connecting pipe, the filter press is fixedly connected with a clear liquid tank through a connecting pipe, the clear liquid tank is fixedly connected with a clear liquid pump through a connecting pipe, the clear liquid pump is fixedly connected with a deamination tower through a connecting pipe, the deamination tower discharging pump is fixedly connected with a preheater through a connecting pipe, and the deamination tower discharging pump is fixedly connected with a preheater through a connecting pipe;

the first-effect heater is fixedly connected with the first-effect separator through a connecting pipe, the first-effect separator is fixedly connected with the first-effect demister through a connecting pipe, the first-effect heater and the first-effect separator are fixedly connected with the first-effect circulating pump through a connecting pipe, the first-effect separator and the first-effect demister are fixedly connected with the second-effect heater through a connecting pipe, the second-effect heater is fixedly connected with the second-effect separator through a connecting pipe, the second-effect separator is fixedly connected with the second-effect demister through a connecting pipe, the second-effect heater and the second-effect separator are fixedly connected with the second-effect circulating pump through a connecting pipe, the second-effect demister is fixedly connected with the third-effect heater through a connecting pipe, one side of triple effect heater passes through another triple effect heater of connecting pipe fixedly connected with, fixedly connected with forced circulation pump between triple effect heater and the two-effect separator, triple effect heater passes through connecting pipe fixedly connected with triple effect separator, triple effect separator passes through connecting pipe fixedly connected with triple effect defroster and ejection of compact pump respectively, triple effect defroster passes through connecting pipe fixedly connected with condenser, the condenser passes through connecting pipe fixedly connected with condensation water pitcher, the ejection of compact pump passes through connecting pipe fixedly connected with cooling crystallizer, cooling crystallizer passes through connecting pipe fixedly connected with centrifuge, centrifuge passes through connecting pipe fixedly connected with mother liquor jar, mother liquor jar passes through connecting pipe fixedly connected with mother liquor pump.

When the phenol-containing wastewater treatment system of the technical scheme is used, the multistage demister is adopted through the one-effect demister, the two-effect demister and the three-effect demister, the demisting efficiency is high, the equipment behind can be protected from being corroded by materials, meanwhile, the automatic spray head is also arranged, the wetting and cleaning of the demister are kept, liquid drops in secondary steam can be removed from large to small, the product loss is further reduced, the distilled water quality is purified, the treatment system has larger adaptability, the process parameters have allowance, the system has stronger impact load resistance, and long-term safe, stable and effective operation can be ensured.

Further, the raw liquid tank, the PH adjusting tank, the sodium hydroxide unit, the integrated equipment, the PAC unit, the demulsifier unit, the PAM unit, the clean liquid tank, the deamination tower, the first-effect separator, the first-effect demister, the second-effect separator, the second-effect demister, the third-effect separator, the third-effect demister, the cooling crystallizer, the mother liquid tank and the condensed water tank are all manufactured by adopting a steel plate rolling process.

Further, the raw liquid pump, the neutralization tank discharging pump, the clear liquid pump, the deamination tower discharging pump, the first-effect circulating pump, the second-effect circulating pump, the discharging pump and the mother liquid pump are chemical centrifugal pumps.

Further, the preheater, the first-effect heater, the second-effect heater, the third-effect heater and the condenser are all tubular heat exchangers.

Further, the filter press feed pump is a screw pump, the forced circulation pump is an axial flow pump, and the centrifuge is a flat plate centrifuge.

(3) Advantageous effects

In summary, the utility model has the following beneficial effects:

1. the first-effect separator, the second-effect separator and the third-effect separator have larger gas-liquid separation space, so that the gas-liquid separation effect is good, the flow rate of secondary steam is reduced, and entrainment is reduced;

2. the multi-stage demister is adopted, the demister is high in demisting efficiency, the equipment behind the demister can be protected from being corroded by materials, meanwhile, the automatic spray head is also arranged, the demister is kept moist and clean, liquid drops in secondary steam can be removed from large to small, the product loss is further reduced, the distilled water quality is purified, a treatment system has high adaptability, process parameters have allowance, the system has high shock load resistance, and long-term safe, stable and effective operation can be guaranteed;

3. through pre-heater, one effect heater, two effect heater, three effect heater and condenser, adopt high-efficient tubular heat exchanger, be difficult for the scale deposit, be difficult for blockking up, the waving bears the weight of the scope greatly, through the integration equipment, the raw liquor pump, neutralizing tank discharge pump, the clear liquid pump, deamination tower discharge pump, one effect circulating pump, two effect circulating pump, the discharge pump, the mother liquor pump, pressure filter charge pump and forced circulation pump, can realize that one key opens stops, automatic control liquid level, automatic feed, ejection of compact etc. to a great extent has reduced operating personnel's requirement and working strength, also ensure that the system is stable, safe operation simultaneously, whole device is rational in infrastructure, convenient to use, the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the description of the embodiments or the prior art will be briefly described, and it is apparent that the drawings in the following description are only one embodiment of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a system according to the present utility model.

The marks in the drawings are:

1. a stock solution tank; 2. a raw liquid pump; 3. a pH adjusting tank; 4. a sodium hydroxide unit; 5. a neutralization tank discharge pump; 6. an integrated device; 7. PAC unit; 8. a demulsifier unit; 9. PAM unit; 10. a filter press feed pump; 11. a filter press; 12. a clear liquid tank; 13. a clear liquid pump; 14. a deamination tower; 15. a deamination tower discharge pump; 16. a preheater; 17. a first effect heater; 18. a first effect separator; 19. a first-effect circulating pump; 20. a first-effect demister; 21. a two-effect heater; 22. a two-effect separator; 23. a two-effect circulation pump; 24. a two-effect demister; 25. a three-effect heater; 26. a three-effect separator; 27. a forced circulation pump; 28. a triple effect mist eliminator; 29. a discharge pump; 30. cooling the crystallizer; 31. a centrifuge; 32. a mother liquor tank; 33. a mother liquid pump; 34. a condenser; 35. and a condensed water tank.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the technical solutions in the embodiments of the present utility model are clearly and completely described below to further illustrate the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all versions.

Examples:

the present utility model will be described in further detail with reference to fig. 1.

Referring to fig. 1, the present utility model provides a technical solution: the phenol-containing wastewater treatment system comprises a raw liquid tank 1, wherein the raw liquid tank 1 is fixedly connected with a raw liquid pump 2 through a connecting pipe, the raw liquid pump 2 is fixedly connected with a PH regulating tank 3 through a connecting pipe, the PH regulating tank 3 is fixedly connected with a neutralization tank discharging pump 5 through a connecting pipe, the neutralization tank discharging pump 5 is fixedly connected with an integrated device 6, the PH regulating tank 3 and the integrated device 6 are respectively and fixedly connected with a sodium hydroxide unit 4, a PAC unit 7, a demulsifier unit 8 and a PAM unit 9 through connecting pipes, the integrated device 6 is fixedly connected with a filter press feeding pump 10 through a connecting pipe, the filter press feeding pump 10 is fixedly connected with a filter press 11 through a connecting pipe, the filter press 11 is fixedly connected with a clear liquid tank 12 through a connecting pipe, the clear liquid tank 12 is fixedly connected with a clear liquid pump 13 through a connecting pipe, the clear liquid pump 13 is fixedly connected with a deamination tower 14 through a connecting pipe, the deamination tower 14 is fixedly connected with a deamination tower discharging pump 15 through a connecting pipe, the deamination tower discharging pump 15 is fixedly connected with a preheater 16 through a connecting pipe, the preheater 16 is fixedly connected with a valid heater 17 through a connecting pipe;

the first-effect heater 17 is fixedly connected with the first-effect separator 18 through a connecting pipe, the first-effect separator 18, the second-effect separator 22 and the third-effect separator 26 are used for realizing gas-liquid separation with larger volume, the first-effect separator 18, the second-effect separator 22 and the third-effect separator 26 are provided with gas-liquid separation space with good gas-liquid separation effect, the flow rate of secondary steam is reduced, entrainment is reduced, the first-effect separator 18 is fixedly connected with the first-effect demister 20 through a connecting pipe, the first-effect heater 17 and the first-effect separator 18 are fixedly connected with the first-effect circulating pump 19 through a connecting pipe, the first-effect separator 18 and the first-effect demister 20 are fixedly connected with the second-effect heater 21 through a connecting pipe, the second-effect heater 21 is fixedly connected with the second-effect separator 22 through a connecting pipe, the second-effect demister 24 and the third-effect demister 28 are fixedly connected with the second-effect demister 24 through a connecting pipe, multistage demisting is adopted, the demisting efficiency is high, the subsequent equipment can be protected from being corroded by materials, an automatic spray head is also arranged, the humidity and the cleanliness of the demister are kept, the liquid drops in the secondary steam can be removed from large to small, the product loss is further reduced, the distilled water quality is purified, the treatment system has larger adaptability, the process parameters have allowance, the system has stronger shock-resistant load capacity, the long-term safe and stable and effective operation can be ensured, the two-effect heater 21 and the two-effect separator 22 are fixedly connected with the two-effect circulating pump 23 through a connecting pipe, the two-effect demister 24 is fixedly connected with the three-effect heater 25 through the connecting pipe, one side of the three-effect heater 25 is fixedly connected with the other three-effect heater 25 through the connecting pipe, the preheater 16, the one-effect heater 17, the two-effect heater 21, the three-effect heater 25 and the condenser 34 are adopted by adopting the high-efficiency tubular heat exchanger, the utility model has the advantages of difficult scale deposit, difficult jam, the waviness bears the weight of the scope greatly, the forced circulation pump 27 of fixedly connected with between three effect heater 25 and the two effect separators 22, three effect heater 25 is through three effect separators 26 of connecting pipe fixedly connected with, three effect separators 26 are through connecting pipe fixedly connected with three effect defroster 28 and ejection of compact pump 29 respectively, three effect defroster 28 is through connecting pipe fixedly connected with condenser 34, condenser 34 is through connecting pipe fixedly connected with condensation water pitcher 35, ejection of compact pump 29 is through connecting pipe fixedly connected with cooling crystallizer 30, cooling crystallizer 30 is through connecting pipe fixedly connected with centrifuge 31, centrifuge 31 is through connecting pipe fixedly connected with mother liquor jar 32, mother liquor jar 32 is through connecting pipe fixedly connected with mother liquor pump 33, through integration equipment 6, feed pump 2, neutralization jar ejection of compact pump 5, clear liquid pump 13, deamination tower ejection of compact pump 15, one effect circulation pump 19, two effect circulation pump 23, ejection of compact pump 29, mother liquor pump 33, pressure filter feed pump 10 and forced circulation pump 27 are realized that one key is opened and is stopped, automatic control, automatic feeding, to a great extent, operating personnel's requirement and operating strength have been reduced simultaneously, the whole system is guaranteed to a practical and steady structure, safe and practical and stable operation is guaranteed.

Specifically, the raw liquid tank 1, the PH adjusting tank 3, the sodium hydroxide unit 4, the integrated equipment 6, the PAC unit 7, the demulsifier unit 8, the PAM unit 9, the clear liquid tank 12, the deamination tower 14, the first-effect separator 18, the first-effect demister 20, the second-effect separator 22, the second-effect demister 24, the third-effect separator 26, the third-effect demister 28, the cooling crystallizer 30, the mother liquid tank 32 and the condensed water tank 35 are all manufactured by adopting a steel plate coiling process.

Specifically, the raw liquid pump 2, the neutralization tank discharge pump 5, the clear liquid pump 13, the deamination tower discharge pump 15, the first-effect circulating pump 19, the second-effect circulating pump 23, the discharge pump 29 and the mother liquid pump 33 are chemical centrifugal pumps.

Specifically, the preheater 16, the first-effect heater 17, the second-effect heater 21, the third-effect heater 25, and the condenser 34 are all tubular heat exchangers.

Specifically, the filter press feed pump 10 is a screw pump, the forced circulation pump 27 is an axial flow pump, and the centrifuge 31 is a flat plate centrifuge.

The working principle of the utility model is as follows:

the method comprises the steps of combining deoiling, deamination and a multi-effect evaporation device to treat high-salt and high-concentration phenolic wastewater, firstly, regulating the pH value of the high-salt and high-concentration phenolic wastewater in a raw material tank 1 to 11 through a raw material pump 2, removing impurities such as tar, suspended matters and the like through an integrated device 6, sending clear liquid into a deamination tower 14 through a clear liquid pump 13 to remove free ammonia in the raw material liquid, preheating the raw material liquid through a preheater 16, sending the preheated material to a multi-effect evaporation system, sending the preheated material to a first-effect heater 17, sending secondary steam from a first-effect separator 18 to a second-effect demister 20, taking the secondary steam as a heat source of a second-effect heater 21, continuously circulating the material liquid in the system through a second-effect circulating pump 23, automatically sending the concentrated liquid into a next effect when the concentration of the material liquid reaches a set value, sending the concentrated liquid into a cooling crystallizer 30 through a circulating water, cooling the material to obtain crystals, then sending the crystals into a centrifuge 31, sending the centrifuged salt output system, sending the mother liquid into a mother liquid tank 32 through a mother liquid pump 33, sending the system to a special treatment mother liquid, and independently treating the system, and avoiding heavy component enrichment in the system, and reducing the COD (chemical oxygen demand) evaporation pressure.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims

1. The utility model provides a phenolic wastewater treatment system, includes former fluid reservoir (1), its characterized in that: the device comprises a raw liquid tank (1), a raw liquid pump (2), a PH regulating tank (3), a neutralization tank discharging pump (5), an integrated device (6), a sodium hydroxide unit (4), a PAC unit (7), a demulsifier unit (8) and a PAM unit (9) which are respectively and fixedly connected with the PH regulating tank (1) through a connecting pipe, the raw liquid pump (2) is fixedly connected with the PH regulating tank (3) through the connecting pipe, the PH regulating tank (3) is fixedly connected with the neutralization tank discharging pump (5) through the connecting pipe, the neutralization tank discharging pump (5) is fixedly connected with the integrated device (6), the PH regulating tank (3) and the integrated device (6) are respectively and fixedly connected with the sodium hydroxide unit (4), the PAC unit (7), the demulsifier unit (8) and the PAM unit (9) through the connecting pipe, the integrated device (6) is fixedly connected with a filter press feeding pump (10) through the connecting pipe, the filter press feeding pump (10) is fixedly connected with a filter press (11) through the connecting pipe, the filter press (11) is fixedly connected with a clear liquid tank (12) through the connecting pipe, the clear liquid pump (13) is fixedly connected with a clear liquid pump (13) through the connecting pipe, the clear liquid pump (13) is fixedly connected with a deamination tower (14) through the connecting pipe, the deamination tower (15) is fixedly connected with a pre-heater (16) through a pre-heater (16), and the deamination tower (16) is fixedly connected with a heater (16);

the utility model is characterized in that the first effective heater (17) is fixedly connected with the first effective separator (18) through a connecting pipe, the first effective separator (18) is fixedly connected with the first effective demister (20) through the connecting pipe, the first effective heater (17) and the first effective separator (18) are fixedly connected with the first effective circulating pump (19) through the connecting pipe, the first effective separator (18) and the first effective demister (20) are fixedly connected with the second effective heater (21) through the connecting pipe, the second effective heater (21) is fixedly connected with the second effective separator (22) through the connecting pipe, the second effective separator (22) is fixedly connected with the second effective demister (24) through the connecting pipe, the second effective demister (21) and the second effective separator (22) are fixedly connected with the second effective circulating pump (23) through the connecting pipe, one side of the third effective heater (25) is fixedly connected with the other third effective heater (25) through the connecting pipe, the third effective heater (25) and the second effective separator (22) are fixedly connected with the third effective circulating pump (26) through the third effective separator (26) through the connecting pipe, the third effective demister (25) is fixedly connected with the third effective separator (26) through the third effective circulating pump (26), the three-effect demister (28) is fixedly connected with a condenser (34) through a connecting pipe, the condenser (34) is fixedly connected with a condensate tank (35) through a connecting pipe, the discharging pump (29) is fixedly connected with a cooling crystallizer (30) through a connecting pipe, the cooling crystallizer (30) is fixedly connected with a centrifugal machine (31) through a connecting pipe, the centrifugal machine (31) is fixedly connected with a mother liquor tank (32) through a connecting pipe, and the mother liquor tank (32) is fixedly connected with a mother liquor pump (33) through a connecting pipe.

2. A phenolic wastewater treatment system according to claim 1 and wherein: raw liquid tank (1), PH adjusting tank (3), sodium hydroxide unit (4), integration equipment (6), PAC unit (7), demulsifier unit (8), PAM unit (9), clear liquid tank (12), deamination tower (14), one effect separator (18), one effect defroster (20), two effect separators (22), two effect defroster (24), three effect separators (26), three effect defroster (28), cooling crystallizer (30), mother liquor tank (32) and condensate water tank (35) all adopt steel sheet coiling technology to make.

3. A phenolic wastewater treatment system according to claim 1 and wherein: the raw liquid pump (2), the neutralization tank discharging pump (5), the clear liquid pump (13), the deamination tower discharging pump (15), the first-effect circulating pump (19), the second-effect circulating pump (23), the discharging pump (29) and the mother liquor pump (33) are chemical centrifugal pumps.

4. A phenolic wastewater treatment system according to claim 1 and wherein: the preheater (16), the first-effect heater (17), the second-effect heater (21), the third-effect heater (25) and the condenser (34) are all tubular heat exchangers.

5. A phenolic wastewater treatment system according to claim 1 and wherein: the filter press feeding pump (10) is a screw pump, the forced circulation pump (27) is an axial flow pump, and the centrifugal machine (31) is a flat plate centrifugal machine.