CN210764708U - Centralized high-efficient desulfurization effluent disposal system - Google Patents
Centralized high-efficient desulfurization effluent disposal system Download PDFInfo
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- CN210764708U CN210764708U CN201921217345.7U CN201921217345U CN210764708U CN 210764708 U CN210764708 U CN 210764708U CN 201921217345 U CN201921217345 U CN 201921217345U CN 210764708 U CN210764708 U CN 210764708U
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Abstract
The utility model discloses a water treatment mechanical device, in particular to a centralized high-efficiency desulfurization wastewater treatment system. The utility model is connected with a high-efficiency reactor by an outlet of the desulfurization waste water, and the high-efficiency reactor is also connected with a dry powder adding machine; the outlet of the high-efficiency reactor is connected with the high-efficiency clarifier; the bottom of the high-efficiency clarifier is provided with a sludge discharge outlet; the upper part of the high-efficiency clarifier is provided with a clear liquid outlet which is connected with a precision filter, and the outlet of the precision filter is connected with a clear water tank. The utility model has the advantages that: the process is greatly simplified, the process flow is short, the operation intensity is low, the dosing accuracy is improved, and the dosing and labor cost is effectively reduced; the centralized high-efficiency wastewater treatment device has the advantages of small equipment quantity, simple equipment structure, low energy consumption and short construction period.
Description
Technical Field
The utility model relates to a water treatment mechanical device, in particular to a centralized high-efficiency desulfurization wastewater treatment system.
Background
The traditional design process of desulfurization wastewater is a triple box + clarification tank treatment process, and mainly comprises a wastewater treatment system, a chemical dosing system, a sludge dewatering system and the like. And conveying the desulfurization wastewater discharged by the gypsum dehydration system to a three-two box device through a wastewater lifting pump. The three-header consists of a neutralization tank, a reaction tank and a flocculation tank. Calcium hydroxide, organic sulfur and a flocculating agent are added into a neutralization box and a reaction box of the triple box to precipitate SS and heavy metals in the wastewater in the form of large solid particle flocculates, and a flocculating aid is added into the flocculation box to accelerate and accelerate flocculation of suspended matters and sediments and improve flocculation effect. And overflowing the wastewater after the flocculation precipitation to automatically flow to a clarification tank, and separating mud and water under the action of gravity. Clear water overflows to the clear water tank through the overflow weir and is discharged outside through the clear water pump after PH mediation, and the vast majority of concentrated sludge is passed through the mud discharge pump and is arrived plate-and-frame filter press dehydration, and little part of mud and dehydration filtrating return to the waste water system front end and carry out retreatment.
The conventional flow chart is shown in figure 1, and the process has the problems of unstable operation, failure in actual treatment capacity to reach a design value, failure in effluent quality to reach a standard, various medicament varieties, complex medicament configuration, high labor consumption, random and inaccurate control of sludge discharge of a clarification tank, high solid waste sludge treatment cost and the like. Moreover, the effluent SS can only ensure not more than 70mg/L, and because the solid content in the bottom is only about 5 percent, only a plate-and-frame filter press can be arranged for dehydration, and a vacuum belt dehydrator of the desulfurization system can not be utilized (the belt dehydrator requires that the feed content is not less than 10 percent)
SUMMERY OF THE UTILITY MODEL
Utility model main objective: five medicaments of a 'three-header' process are replaced by a compound coagulant: calcium hydroxide, organic sulfur, polymeric iron, coagulant aid and hydrochloric acid simplify a medicine storage, medicine dispensing and adding system, equipment configuration is adjusted according to the characteristics of the medicine, a high-efficiency reaction box replaces a neutralization box, a reaction box and a flocculation box in a triple box, and a clarification tank in the triple box process is replaced by a high-efficiency clarifier. The process simplifies the flow of the wastewater treatment process, reduces equipment, occupies small area, and is simple to operate and easy to maintain.
The utility model discloses a can realize through following technical scheme:
a centralized high-efficiency desulfurization wastewater treatment system is characterized in that: the outlet of the desulfurization waste water is connected with a high-efficiency reactor, and the high-efficiency reactor is also connected with a dry powder feeder; the outlet of the high-efficiency reactor is connected with the high-efficiency clarifier; the bottom of the high-efficiency clarifier is provided with a sludge discharge outlet; the upper part of the high-efficiency clarifier is provided with a clear liquid outlet which is connected with a precision filter, and the outlet of the precision filter is connected with a clear water tank.
Preferably, a wastewater pond is connected between the outlet of the desulfurization wastewater and the high-efficiency reactor in the centralized high-efficiency desulfurization wastewater treatment system.
Preferably, the outlet of the high-efficiency reactor in the centralized high-efficiency desulfurization wastewater treatment system enters the high-efficiency clarifier through a wastewater lift pump.
Preferably, the sludge discharge outlet at the bottom of the high-efficiency clarifier in the centralized high-efficiency desulfurization wastewater treatment system is transmitted to the vacuum belt dehydrator through a sludge delivery pump for dehydration treatment.
The utility model provides a scheme is: the removal of heavy metals, suspended matters and COD in the wastewater is realized by adding a composite high-efficiency coagulant in the high-efficiency reactor, so that the wastewater discharge meets the discharge standard.
1) The high-efficiency reactor comprises: the design is that the residence time of the designed water amount is not less than 15 minutes, and a high-speed shearing stirrer is arranged in the device. A composite high-efficiency coagulant is put into a reactor through a dry powder feeder.
2) High-speed shearing agitator: a high-rotating-speed variable-frequency adjustable mode is adopted, the adjusting range is 0-400 rpm, and the impeller is in a three-layer or four-layer propelling type, so that the full mixing and stirring of the medicament and the desulfurization wastewater are facilitated. The stirring shear strength is adjusted according to the water quality so as to reduce the wrapping water in the floccule and form compact and stable floccule.
3) A high-efficiency clarifier: and the optimal cloth effect is created by arranging the central water inlet device, and the sedimentation rate of the water inlet flocs is further improved. Meanwhile, the tubular filler is arranged around the central water inlet device to promote the flocs to settle to form a filter bed layer, and suspended matters and colloid in water are filtered by virtue of the stable floc filter bed, so that the realization of higher standard water quality is ensured.
4) A precision filter: in order to further reduce the SS concentration of the discharged water, a filter layer is arranged in the precision filter, the high-efficiency clarifier overflows into the precision filter, water is filtered from top to bottom through the filter layer, suspended matters are continuously intercepted by the filter layer, and the filtered raw water is discharged from the lower end.
5) A dry powder feeder: is a groove type automatic powder proportioning and feeding machine. Directly adding the dry powder of the composite high-efficiency coagulant into a high-efficiency reactor.
Has the advantages that: 1. five agents of a three-header are replaced by a high-efficiency synergistic agent: lime milk, polyferric, organic sulfur, coagulant aid and hydrochloric acid. The dosing system and the dosing process are greatly simplified, the process flow is short, the operation intensity is low, the dosing accuracy is improved, and the dosing and labor cost is effectively reduced; 2. the centralized high-efficiency wastewater treatment device has the advantages of small equipment quantity, simple equipment structure, low energy consumption and short construction period. Meanwhile, the floor area is much smaller than that of the triple box; 3. the centralized high-efficiency wastewater treatment system has high capability of removing the SS of the desulfurization wastewater, and the SS of the effluent quality is less than or equal to 10 mg/L.
Drawings
FIG. 1 is a schematic view of a conventional process flow of the treatment
FIG. 2 is a schematic view of the process flow of example 1 of the present invention
FIG. 3 is a schematic view of the process flow of example 2 of the present invention
Detailed Description
The following description will be made in detail with reference to the accompanying drawings:
example 1
The structure shown in figure 2 is a centralized high-efficiency desulfurization wastewater treatment system, wherein an outlet of desulfurization wastewater is connected with a high-efficiency reactor, and the high-efficiency reactor is also connected with a dry powder feeder; the outlet of the high-efficiency reactor is connected with the high-efficiency clarifier; the bottom of the high-efficiency clarifier is provided with a sludge discharge outlet; the upper part of the high-efficiency clarifier is provided with a clear liquid outlet which is connected with a precision filter, and the outlet of the precision filter is connected with a clear water tank.
In this example, the reaction was carried out in a high efficiency reactor with the addition of the reagent. The materials after reaction are clarified and layered to realize the purpose of the invention.
Example 2
On the basis of the embodiment 1, the centralized high-efficiency desulfurization wastewater treatment system is characterized in that an outlet of desulfurization wastewater is connected with a high-efficiency reactor, and the high-efficiency reactor is also connected with a dry powder feeder; the outlet of the high-efficiency reactor is connected with the high-efficiency clarifier; the bottom of the high-efficiency clarifier is provided with a sludge discharge outlet; the upper part of the high-efficiency clarifier is provided with a clear liquid outlet which is connected with a precision filter, and the outlet of the precision filter is connected with a clear water tank; a wastewater pond is connected between the outlet of the desulfurization wastewater and the high-efficiency reactor, as shown in figure 3.
The embodiment can remove primary filter substances such as solids and impurities by a primary standing process before the desulfurization wastewater enters the high-efficiency reactor, is beneficial to the exertion of the effect of a subsequent reactor, and can also reduce the use of medicaments.
Example 3
On the basis of the embodiment 2, the centralized high-efficiency desulfurization wastewater treatment system is characterized in that an outlet of desulfurization wastewater is connected with a high-efficiency reactor, and the high-efficiency reactor is also connected with a dry powder feeder; the outlet of the high-efficiency reactor is connected with the high-efficiency clarifier; the bottom of the high-efficiency clarifier is provided with a sludge discharge outlet; the upper part of the high-efficiency clarifier is provided with a clear liquid outlet which is connected with a precision filter, and the outlet of the precision filter is connected with a clear water tank; a wastewater pool is connected between the outlet of the desulfurization wastewater and the high-efficiency reactor; the outlet of the high-efficiency reactor enters the high-efficiency clarifier through a wastewater lifting pump; and a sludge discharge outlet at the bottom of the high-efficiency clarifier is transmitted to a vacuum belt dehydrator through a sludge delivery pump for dehydration treatment.
According to the embodiment, through the addition of the middle kinetic energy mechanism, manual operation control can be better implemented, so that the operation of the whole system is more controllable, and the productivity, the efficiency and the like are further improved.
Claims (4)
1. A centralized high-efficiency desulfurization wastewater treatment system is characterized in that: the outlet of the desulfurization waste water is connected with a high-efficiency reactor, and the high-efficiency reactor is also connected with a dry powder feeder; the outlet of the high-efficiency reactor is connected with the high-efficiency clarifier; the bottom of the high-efficiency clarifier is provided with a sludge discharge outlet; the upper part of the high-efficiency clarifier is provided with a clear liquid outlet which is connected with a precision filter, and the outlet of the precision filter is connected with a clear water tank.
2. The centralized high-efficiency desulfurization waste water treatment system according to claim 1, characterized in that: a wastewater pool is connected between the outlet of the desulfurization wastewater and the high-efficiency reactor.
3. The centralized high-efficiency desulfurization waste water treatment system according to claim 1, characterized in that: the outlet of the high-efficiency reactor enters the high-efficiency clarifier through a wastewater lifting pump.
4. The centralized high-efficiency desulfurization waste water treatment system according to claim 1, characterized in that: and a sludge discharge outlet at the bottom of the high-efficiency clarifier is transmitted to a vacuum belt dehydrator through a sludge delivery pump for dehydration treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217345.7U CN210764708U (en) | 2019-07-30 | 2019-07-30 | Centralized high-efficient desulfurization effluent disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217345.7U CN210764708U (en) | 2019-07-30 | 2019-07-30 | Centralized high-efficient desulfurization effluent disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210764708U true CN210764708U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921217345.7U Expired - Fee Related CN210764708U (en) | 2019-07-30 | 2019-07-30 | Centralized high-efficient desulfurization effluent disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210764708U (en) |
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2019
- 2019-07-30 CN CN201921217345.7U patent/CN210764708U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20210730 |