CN217709107U

CN217709107U - Novel dechlorination system

Info

Publication number: CN217709107U
Application number: CN202221588336.0U
Authority: CN
Inventors: 党翔宇; 焦庆; 杨珍涛; 刘可; 王筝
Original assignee: Shiyan Ecological Environment Technology Center
Current assignee: Shiyan Ecological Environment Technology Center
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-11-01
Anticipated expiration: 2032-06-21

Abstract

The utility model discloses a novel dechlorination system relates to sewage treatment technical field. Comprises a storage workshop, a work workshop, a hydrogen peroxide transport vehicle, a wastewater pool and a plurality of guide pipes; chlorine-containing wastewater is stored in the wastewater tank; a medicine storage barrel and a control cabinet are arranged in the storage workshop, an explosion-proof illuminating lamp and a water delivery pipe are arranged at the top of the storage workshop, a plurality of spray heads are arranged on the water delivery pipe, and a hydrogen peroxide transportation vehicle is connected with an unloading pump through a guide pipe to store hydrogen peroxide in the medicine storage barrel; a sedimentation tank and a plurality of sets of reaction equipment are arranged in the workshop; the drug storage barrel and the reaction equipment, the reaction equipment and the sedimentation tank, and the wastewater tank and the reaction equipment are connected through the guide pipe. A plurality of spray heads are arranged at the top of the storage workshop through water conveying pipes, and when hydrogen peroxide is leaked from the medicine storage barrel or the temperature inside the medicine storage barrel is high, water is sprayed for dilution and cooling, so that safety is guaranteed; the total residual chlorine of the wastewater passing through the dechlorination system is not more than 0.5mg/L, so that the dechlorination effect is achieved, the wastewater is discharged, and the ecological environment is protected.

Description

Novel dechlorination system

Technical Field

The utility model relates to a sewage treatment technical field, more specifically say, it relates to a novel dechlorination system.

Background

In the production and manufacturing process of special glass, a spraying and dedusting unit in a dedusting workshop sprays waste water generated in the dedusting process. The wastewater has low organic content, high water temperature and high salt content and has pungent odor of disinfectant water.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel dechlorination system discharges after dechlorination the waste water that contains chlorine that will produce in the special glass manufacturing process, plays the guard action to the environment.

The above technical purpose of the present invention can be achieved by the following technical solutions: a novel dechlorination system comprises a storage workshop, a work workshop, a hydrogen peroxide transportation vehicle, a wastewater pool and a plurality of guide pipes; chlorine-containing wastewater is stored in the wastewater tank; a medicine storage barrel and a control cabinet are arranged in the storage workshop, an explosion-proof illuminating lamp and a water delivery pipe are arranged at the top of the storage workshop, a plurality of spray heads are arranged on the water delivery pipe, and the hydrogen peroxide transportation vehicle is connected with the medicine storage barrel through a guide pipe to store hydrogen peroxide in the medicine storage barrel; a sedimentation tank and a plurality of sets of reaction equipment are arranged in the workshop; the medicine storage barrel and the reaction equipment, the reaction equipment and the sedimentation tank, and the wastewater pool and the reaction equipment are connected through a conduit.

The utility model discloses further set up to: the reaction equipment comprises a first reaction kettle, a second reaction kettle and a third reaction kettle, wherein the first reaction kettle and the second reaction kettle, the second reaction kettle and the third reaction kettle are connected through a guide pipe; the drug storage barrel is connected with the first reaction kettle through a guide pipe, and the wastewater pool is connected with the first reaction kettle through a guide pipe; the first reaction kettle, the second reaction kettle and the third reaction kettle are respectively provided with a feed inlet and an exhaust outlet.

The utility model discloses further set up to: an OPR instrument is arranged in the workshop and is arranged on a guide pipe between the first reaction kettle and the second reaction kettle.

The utility model discloses further set up to: an unloading pump and a hydrogen peroxide feeding pump are arranged in the storage workshop, the unloading pump is respectively connected with the hydrogen peroxide transport vehicle and the medicine storage barrel through guide pipes, and hydrogen peroxide in the hydrogen peroxide transport vehicle is conveyed into the medicine storage barrel through the unloading pump to be stored; the medicine storage barrel is connected with a hydrogen peroxide feeding pump through a guide pipe, the hydrogen peroxide feeding pump is connected with the first reaction kettle through a guide pipe, and hydrogen peroxide in the medicine storage barrel is fed into the first reaction kettle.

The utility model discloses further set up to: the reaction kettle I, the reaction kettle II and the reaction kettle III are all internally provided with stirrers, the top of the medicine storage barrel is provided with an emergency release valve, and a liquid level meter and a thermometer are arranged in the medicine storage barrel.

The utility model discloses further set up to: the number of the reaction equipment in the workshop is 2, and when one set of the reaction equipment works, the other set of the reaction equipment is reserved.

To sum up, the utility model discloses following beneficial effect has: a plurality of spray heads are arranged at the top of the storage workshop through water conveying pipes, and when hydrogen peroxide is leaked from the medicine storage barrel or the temperature inside the medicine storage barrel is high, water is sprayed for dilution and cooling, so that safety is guaranteed; the total residual chlorine of the wastewater after passing through the dechlorination system is not more than 0.5mg/L, so that the dechlorination effect is achieved, the wastewater is discharged, and the ecological environment is protected.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a flow chart of dechlorination according to an embodiment of the present invention.

In the figure: 1. a storage plant; 2. a work shop; 3. a hydrogen peroxide transport vehicle; 4. unloading the pump; 5. a medicine storage barrel; 6. a conduit; 7. a control cabinet; 8. an explosion-proof illuminating lamp; 9. a water delivery pipe; 10. a spray head; 11. a wastewater tank; 12. a first reaction kettle; 13. a second reaction kettle; 14. a third reaction kettle; 15. a sedimentation tank; 16. a feeding port; 17. an exhaust port; 18. an emergency release valve; 19. a hydrogen peroxide feeding pump; 20. an OPR meter.

Detailed Description

The present invention is described in further detail below with reference to fig. 1-2.

The embodiment is as follows: a novel dechlorination system is shown in figures 1-2 and comprises a storage workshop 1, a work workshop 2, a hydrogen peroxide transportation vehicle 3, a waste water pool 11 and a plurality of conduits 6; chlorine-containing wastewater is stored in the wastewater tank 11; a medicine storage barrel 5 and a control cabinet 7 are arranged in the storage workshop 1, an explosion-proof illuminating lamp 8 and a water conveying pipe 9 are arranged at the top of the storage workshop 1, a plurality of spray heads 10 are arranged on the water conveying pipe 9, and the water conveying pipe 9 is connected with a tap water pipe; when the temperature in the storage workshop is too high or hydrogen peroxide leaks, the spray nozzle 10 works to spray water to dilute the hydrogen peroxide, so that the safety is ensured, and the temperature is reduced. A sedimentation tank 15 and a plurality of sets of reaction equipment are arranged in the workshop 2; the medicine storage barrel 5 and the reaction equipment, the reaction equipment and the sedimentation tank 15, and the wastewater tank 11 and the reaction equipment are connected through the guide pipe 6. The reaction equipment comprises a first reaction kettle 12, a second reaction kettle 13 and a third reaction kettle 14, wherein the first reaction kettle 12 is connected with the second reaction kettle 13, the second reaction kettle 13 is connected with the third reaction kettle 14, and the third reaction kettle 14 is connected with a sedimentation tank 15 through a guide pipe 6; the wastewater pool 11 is connected with the first reaction kettle 12 through a guide pipe 6; the first reaction kettle 12, the second reaction kettle 13 and the third reaction kettle 14 are respectively provided with a feed inlet 16 and an exhaust outlet 17. An OPR instrument 20 is arranged in the workshop 2, the OPR instrument 20 is provided with an instrument probe, and the probe is arranged on the guide pipe 6 which is connected between the first reaction kettle 12 and the second reaction kettle 13. An unloading pump 4 and a hydrogen peroxide feeding pump 19 are arranged in the storage workshop 1, the unloading pump 4 is respectively connected with a hydrogen peroxide transport vehicle 3 and a medicine storage barrel 5 through a guide pipe 6, and hydrogen peroxide in the hydrogen peroxide transport vehicle 3 is conveyed into the medicine storage barrel 5 through the unloading pump 4 to be stored; the medicine storage barrel 5 is connected with a hydrogen peroxide feeding pump 19 through a guide pipe 6, the hydrogen peroxide feeding pump 19 is connected with the first reaction kettle 12 through the guide pipe 6, and hydrogen peroxide in the medicine storage barrel 5 is fed into the first reaction kettle 12. The first reaction kettle 12, the second reaction kettle 13 and the third reaction kettle 14 are internally provided with stirrers, the top of the medicine storage barrel 5 is provided with an emergency release valve 18, and the medicine storage barrel 5 is internally provided with a liquid level meter and a thermometer. The number of the reaction equipment in the workshop 2 is 2, and when one set of reaction equipment works, the other set of reaction equipment is reserved. The electrical cabinet is electrically connected with the unloading pump 4, the thermometer, the liquid level meter, the emergency release valve 18, the explosion-proof illuminating lamp 8, the spray head 10 and the hydrogen peroxide feeding pump 19.

The working principle is as follows: chlorine gas and cold sodium hydroxide to produce sodium chloride, sodium hypochlorite and water:

Cl₂+2NaOH＝Nacl+NaClO+H₂O (1)

chlorine gas reacts with hot sodium hydroxide to produce sodium chloride, sodium chlorate and water:

Cl₂+6NaOH＝5Nacl+NaClO₃+3H₂O (2)

the reaction formula is as follows:

NaClO+H₂O₂＝＝NaCl+O₂+H₂O (3)

H₂O₂+2NaClO₃＝2NaOH+3O₂+Cl₂ (4)

when no reaction occurs, no bubble appears, and the reaction can be observed by naked eyes without bubble generation.

The hydrogen peroxide transport vehicle 3 is arranged outside the storage workshop 1, the discharge opening of the hydrogen peroxide transport vehicle 3 is in butt joint with the inlet of the unloading pump 4 through a guide pipe 6, the unloading pump 4 is started, and hydrogen peroxide in the hydrogen peroxide transport vehicle 3 is transferred into the hydrogen peroxide storage barrel 5. When the liquid level gauge in the medicine storage barrel 5 monitors a high liquid level, the unloading pump 4 automatically stops.

A water pump in a wastewater pool 11 is started, chlorine-containing wastewater enters a first reaction kettle 12 through a conduit 6, hydrochloric acid and hydrogen peroxide are added into the first reaction kettle 12, a hydrochloric acid metering pump is controlled by a pH instrument to automatically feed the hydrochloric acid from a feed inlet 16, the pH value is adjusted to (8 +/-0.5), hydrogen peroxide is controlled by an ORP instrument to automatically feed the hydrogen peroxide metering pump, a probe of the ORP instrument is arranged on a conduit connecting the first reaction kettle and a second reaction kettle, the hydrogen peroxide and the oxidized chlorine undergo an oxidation-reduction reaction, and the oxidized chlorine is reduced into reduced chlorine ions. When the pH value is within the range of (8 +/-0.5), the hydrogen peroxide is relatively stable in the environment, is not easy to decompose automatically, and is beneficial to the operation of a dechlorination system.

The hydrogen peroxide feeding pump is linked with the hydrogen peroxide feeding pump. The hydrogen peroxide feeding pump is controlled by the high and low values of the ORP meter, namely the hydrogen peroxide feeding pump is automatically started when the oxidation-reduction potential of the first reaction kettle 12 reaches a set high point (250 MV), and is automatically stopped when the oxidation-reduction potential reaches a low point (220 MV). The hydrogen peroxide storage barrel 5 can give an alarm in advance before the medicine is short, and the hydrogen peroxide adding pump can be controlled to stop automatically when the medicine is not available.

The liquid in the first reaction kettle 12 enters the second reaction kettle 13 through the conduit 6 after reacting, the liquid in the second reaction kettle 13 enters the third reaction kettle 14 through the conduit 6 after reacting, the liquid after reacting in the third reaction kettle 14 enters the sedimentation tank 15 through the conduit 6 for sedimentation, residual chlorine is measured in the final effluent water of the third reaction kettle 14 after dechlorination, and the dechlorination effect is achieved when the total residual chlorine amount is not more than 0.5mg/L, and the dechlorination is discharged.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A novel dechlorination system is characterized in that: comprises a storage workshop (1), a work workshop (2), a hydrogen peroxide solution transport vehicle (3), a wastewater pool (11) and a plurality of conduits (6); chlorine-containing wastewater is stored in the wastewater tank (11); a medicine storage barrel (5) and a control cabinet (7) are arranged in the storage workshop (1), an explosion-proof illuminating lamp (8) and a water conveying pipe (9) are arranged at the top of the storage workshop (1), a plurality of spray heads (10) are arranged on the water conveying pipe (9), and the hydrogen peroxide transportation vehicle (3) is connected with the medicine storage barrel (5) through a guide pipe (6) to store hydrogen peroxide in the medicine storage barrel (5); a sedimentation tank (15) and a plurality of sets of reaction equipment are arranged in the workshop (2); the medicine storage barrel (5) is connected with the reaction equipment through a guide pipe (6), and the reaction equipment is connected with the sedimentation tank (15) and the wastewater pool (11) is connected with the reaction equipment through a guide pipe (6).

2. The novel dechlorination system of claim 1, wherein: the reaction equipment comprises a first reaction kettle (12), a second reaction kettle (13) and a third reaction kettle (14), wherein the first reaction kettle (12) is connected with the second reaction kettle (13), the second reaction kettle (13) is connected with the third reaction kettle (14), and the third reaction kettle (14) is connected with a sedimentation tank (15) through a guide pipe (6); the drug storage barrel (5) is connected with the first reaction kettle (12) through a guide pipe (6), and the wastewater pool (11) is connected with the first reaction kettle (12) through the guide pipe (6); the first reaction kettle (12), the second reaction kettle (13) and the third reaction kettle (14) are respectively provided with a feed inlet (16) and an exhaust outlet (17).

3. The novel dechlorination system of claim 2, wherein: an OPR instrument (20) is arranged in the work workshop (2), and the OPR instrument (20) is arranged on a guide pipe (6) which is connected between the first reaction kettle (12) and the second reaction kettle (13).

4. The novel dechlorination system of claim 1, wherein: an unloading pump (4) and a hydrogen peroxide feeding pump (19) are arranged in the storage workshop (1), the unloading pump (4) is respectively connected with the hydrogen peroxide transport vehicle (3) and the medicine storage barrel (5) through a guide pipe (6), and the hydrogen peroxide in the hydrogen peroxide transport vehicle (3) is conveyed into the medicine storage barrel (5) through the unloading pump (4) to be stored; medicine storage barrel (5) are connected with hydrogen peroxide solution input pump (19) through pipe (6), hydrogen peroxide solution input pump (19) is connected with reation kettle one (12) through pipe (6), puts in hydrogen peroxide solution in medicine storage barrel (5) in reation kettle one (12).

5. The novel dechlorination system of claim 2, wherein: the reaction kettle I (12), the reaction kettle II (13) and the reaction kettle III (14) are internally provided with stirrers, the top of the medicine storage barrel (5) is provided with an emergency release valve (18), and a liquid level meter and a thermometer are arranged in the medicine storage barrel (5).

6. The novel dechlorination system of claim 1, wherein: the number of the reaction equipment in the workshop (2) is 2, and when one set of reaction equipment works, the other set of reaction equipment is reserved.