CN211813824U - Skid-mounted magnetic medium coagulation desulfurization wastewater treatment device - Google Patents
Skid-mounted magnetic medium coagulation desulfurization wastewater treatment device Download PDFInfo
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- CN211813824U CN211813824U CN201922413986.6U CN201922413986U CN211813824U CN 211813824 U CN211813824 U CN 211813824U CN 201922413986 U CN201922413986 U CN 201922413986U CN 211813824 U CN211813824 U CN 211813824U
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Abstract
The application discloses a skid-mounted magnetic medium coagulation desulfurization wastewater treatment device, which comprises a skid-mounted chassis, and a mixed reaction tank, a primary flocculation tank, a centrifugal clarification tank and a multi-medium filter tank which are sequentially communicated and mounted on the skid-mounted chassis; the inlet water of the mixing reaction tank comes from the pretreated desulfurization wastewater, and the mixing reaction tank is connected with a coagulant and an organic sulfur feeding pipe; the primary flocculation tank is connected with a magnetic medium feeding pipe, and the flocculation tank is connected with a coagulant aid feeding pipe; the centrifugal clarification tank comprises a tank body and a water distributor arranged in the tank body, a plurality of water spraying ports are annularly and uniformly distributed on the side surface of the water distributor, and each water spraying port is inclined towards the same side direction in the horizontal direction. Therefore, the forming time of the flocculating body is shortened, the mass density of the flocculating body is improved, the sedimentation speed of the flocculating body is accelerated after the flocculating body enters the centrifugal clarification tank, and the treatment effect is improved; and a plurality of water spraying ports which are inclined towards the same side direction are arranged on the water distributor in the centrifugal clarification tank, so that the sprayed water forms a vortex in the tank body, and heavy pollutants can be precipitated by the center in an accelerated manner due to the centrifugal formation.
Description
Technical Field
The utility model relates to a waste water treatment technical field especially relates to a sled dress formula magnetic medium thoughtlessly congeals desulfurization effluent treatment plant.
Background
The flue gas desulfurization system of coal-fired boilers such as coal-fired power plants generally adopts a limestone-gypsum wet desulfurization process, and because the wastewater generated by the process contains a large amount of pollutants such as solid particles, the desulfurization wastewater generated by the process needs to be discharged up to the standard according to the regulations of the national environmental protection agency.
The utility model with the patent number of 201822272976.0 discloses a coagulating basin for a zero discharge system of desulfurization waste water, and the treatment idea of the desulfurization waste water still continues to use the traditional triple-box method, and the flocculation clarification of sewage is realized by adding coagulant, organic sulfur and coagulant aid in the desulfurization waste water. The flocculating constituent produced by the traditional method has low density and low sedimentation speed, so that the whole set of treatment equipment occupies a large area.
In addition, the water outlet of the water distributor of the traditional sedimentation tank is positioned right below, the sludge at the bottom of the tank is impacted after water is discharged, the stirring of the sludge is increased, the sedimentation effect is influenced, the sedimentation speed is low, and the ascending flow speed is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sled dress formula magnetic medium thoughtlessly congeals desulfurization effluent treatment plant solves one or more among the above-mentioned prior art problem, makes indexes such as desulfurization waste water after handling solid suspended solid satisfy the requirement of "thermal power plant limestone-gypsum wet flue gas desulfurization waste water quality of water control index (DL/T997) 2006").
According to one aspect of the utility model, a skid-mounted magnetic medium coagulation desulfurization wastewater treatment device is provided, which comprises a skid-mounted chassis, and a mixing reaction tank, a primary flocculation tank, a centrifugal clarification tank and a multi-medium filter tank which are sequentially communicated and mounted on the skid-mounted chassis; the inlet water of the mixing reaction tank comes from the pretreated desulfurization wastewater, and the mixing reaction tank is connected with a coagulant and an organic sulfur feeding pipe; the primary flocculation tank is connected with a magnetic medium feeding pipe, and the flocculation tank is connected with a coagulant aid feeding pipe; the centrifugal clarification tank comprises a tank body and a water distributor arranged in the tank body, a plurality of water spraying ports are annularly and uniformly distributed on the side surface of the water distributor, and each water spraying port is inclined towards the same side direction in the horizontal direction.
The magnetic medium powder is added into the primary flocculation tank, so that the magnetic medium is taken as the nucleus of the flocculating constituent to gradually participate in the flocculation reaction, the flocculation reaction speed is accelerated, the flocculating constituent forming time is shortened, the mass density of the flocculating constituent is improved, the flocculating constituent settling speed is accelerated after the flocculating constituent enters the centrifugal clarification tank, and the treatment effect is improved; still set up to a plurality of water jets of same side direction skew through the water-locator to among the centrifugal clarification tank for spun water slowly forms the swirl in the cell body, because centrifugal formation, heavy pollutant leans on the center to deposit with higher speed, and deposits in central area, makes the mud scraping effect better.
In some embodiments: the bottom of the centrifugal clarification tank is provided with a sediment outlet which is sequentially communicated with a deflocculating machine and a magnetic medium recovering machine. Therefore, sediment (floccule) containing magnetic media from the centrifugal clarification tank is smashed by using a deflocculating machine, so that sludge impurities are separated from magnetic media floccules, then the sediment enters a magnetic media recovery machine immediately to recover the magnetic media, the recovery rate reaches more than 99%, the recovered magnetic media are discharged into a primary flocculation tank, the repeated cyclic utilization of the magnetic media is realized, and the sludge after the magnetic media are recovered is discharged to a subsequent sludge treatment process to be treated.
In some embodiments: a clear liquid outlet is arranged above the inner side surface of the tank body, and a water spraying port is arranged close to the lower part of the water distributor. Therefore, the distance between the clear liquid outlet and the water spray opening can be far, the settling time can be delayed, and the sufficient time for settling can be provided.
In some embodiments: the water spraying ports are arranged into a plurality of groups, and each group of water spraying ports is arranged on the side surface of the bottom of the water distributor. This can produce a centrifugal effect.
In some embodiments: the water distributor comprises a shell and an inner cavity, and the water spraying port is communicated with the inner cavity.
In some embodiments: the sludge scraping motor is used for driving the sludge scraping shaft to rotate, and the sludge scraping paddle is positioned at the bottom of the tank body and connected with the sludge scraping shaft; the center of the water distributor is provided with a through hole for the mud scraping shaft to pass through, and the mud scraping shaft is not contacted with the water distributor.
In some embodiments: the water inlet pipe penetrates through the side wall of the tank body and is communicated with the inner cavity of the water distributor; the water entering the water distributor has pressure and is sprayed out from the water spraying opening. Therefore, the centrifugal effect can be formed by utilizing the effluent pressure, and the sedimentation is accelerated.
In some embodiments: the level of the inlet of the water inlet pipe is higher than that of the water spray opening.
In some embodiments: each spout is oriented in a horizontal direction either clockwise or counterclockwise.
Drawings
FIG. 1 is a schematic view of the process flow of the skid-mounted magnetic medium coagulation desulfurization wastewater treatment device of the utility model;
FIG. 2 is a plan layout view of the skid-mounted magnetic medium coagulation desulfurization wastewater treatment device of the utility model;
FIG. 3 is a schematic structural view of a centrifugal settling pond of the skid-mounted magnetic medium coagulation desulfurization wastewater treatment device of the utility model;
FIG. 4 is a top view of the water distributor of the skid-mounted magnetic medium coagulation desulfurization wastewater treatment device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following description of the drawings.
As shown in fig. 1-4, a skid-mounted magnetic medium coagulation desulfurization wastewater treatment device comprises a skid-mounted chassis 8, and a mixing reaction tank 1, a primary flocculation tank 2, a flocculation tank 3, a centrifugal clarification tank 4 and a multi-medium filter tank 5 which are sequentially communicated and mounted on the skid-mounted chassis 8; the inlet water of the mixing reaction tank 1 is from pretreated desulfurization wastewater, and the mixing reaction tank 1 is connected with a coagulant and an organic sulfur feeding pipe 11; the primary flocculation tank 2 is connected with a magnetic medium feeding pipe 21, and the flocculation tank 3 is connected with a coagulant aid feeding pipe 31; the multimedia canister 5 may be provided in a plurality in series.
Therefore, in the primary flocculation tank and the flocculation tank, the magnetic medium gradually participates in flocculation reaction as a flocculation core, so that the flocculation reaction speed is accelerated, the flocculation body forming time is shortened, the mass density of the flocculation body is improved, the flocculation body settling speed is accelerated after the flocculation body enters the centrifugal clarification tank, and the treatment effect is improved.
The bottom of the centrifugal clarification tank 4 is provided with a sediment outlet, the sediment outlet is communicated with a deflocculating machine 6 and a magnetic medium reclaimer 7 sequentially through pipelines, the magnetic medium reclaimer 7 directly discharges the reclaimed magnetic medium to the primary flocculation tank 2 for recycling, and the residual sludge is discharged to a subsequent sludge treatment device for disposal.
When in treatment, the pretreated desulfurization wastewater enters a mixed reaction tank through pumping or gravity flow, and a coagulant and organic sulfur are added into the mixed reaction tank; stirring to fully mix the coagulant, organic sulfur and the wastewater;
the wastewater added with coagulant and organic sulfur enters a primary flocculation tank, magnetic medium is added into the primary flocculation tank for stirring, and the magnetic medium participates in primary flocculation reaction to gradually form small floccules;
the water added with coagulant, organic sulfur and magnetic medium enters a flocculation tank, coagulant aid is added into the flocculation tank, and stirring is carried out; so that impurities such as sludge in the wastewater are gradually coagulated into large flocculating constituents from the small flocculating constituents;
the water containing flocculating constituents in the flocculation tank enters a centrifugal clarification tank for sedimentation;
clear water on the upper layer of the centrifugal clarification tank enters a multi-medium filter tank for filtration treatment;
the flocculating constituent sediment at the bottom of the centrifugal clarification tank is pumped into a deflocculating machine, the deflocculating machine is used for smashing sludge flocculating constituents, so that sludge impurities and magnetic medium nuclei are separated, then, substances such as sludge, magnetic medium and water after deflocculation are sent into a magnetic medium recovery machine for recovering the magnetic medium in the magnetic medium recovery machine, the recovered magnetic medium is thrown into the primary flocculation tank again for continuously participating in flocculation reaction, the recycling of the magnetic medium is realized, and the residual sludge is discharged to subsequent sludge treatment equipment for disposal.
The centrifugal clarifier 4 comprises a pond body 41 and a water distributor 42 arranged in the pond body 41, wherein a plurality of water spraying ports 421 are annularly and uniformly distributed on the side surface of the water distributor 42, and each water spraying port 421 inclines towards the same side direction in the horizontal direction. Specifically, each water jet 421 is oriented in a clockwise direction or a counterclockwise direction in the horizontal direction.
A clear liquid outlet 411 is arranged on the side surface of the tank body 41 near the upper part, and a water spray 421 is arranged near the lower part of the water distributor 42. Therefore, the distance between the clear liquid outlet and the water spray opening can be far, the settling time can be delayed, and the sufficient time for settling can be provided.
The water in the water distributor 42 has pressure and is sprayed from the water spraying port 421.
The water distributor 42 includes a housing 422 and an internal chamber 423 in the housing 422, and each water jet 421 communicates with the internal chamber 423. The water distributor also comprises a water inlet pipe 44, and the water inlet pipe 44 penetrates through the side wall of the tank body 41 and is communicated with the water distributor 42. The water inlet pipe 44 is fixed on the side wall of the tank body 41 and can support the whole water distributor 42. The water inlet end of the water inlet pipe 44 is communicated with the water outlet of the flocculation tank 3. The inlet of the water inlet pipe 44 is higher than the water spray 421. Therefore, the water in the water distributor 42 can generate water pressure, and the centrifugal effect can be formed by utilizing the water outlet pressure to accelerate the sedimentation.
In addition, in another embodiment, the water spraying ports 421 may be provided in multiple groups, and each group of the water spraying ports 421 is arranged on the side of the water distributor 42 along the axial direction of the tank body 41.
The sludge scraping device comprises a sludge scraping motor 431, a sludge scraping shaft 432 and a sludge scraping paddle 433, wherein the sludge scraping shaft 432 is coaxially arranged in the tank body 41, the sludge scraping motor 431 drives the sludge scraping shaft 432 to rotate through a transmission part, the sludge scraping motor 431 is fixedly arranged at the top of the tank body 41, and the sludge scraping paddle 433 is positioned at the bottom of the tank body 41 and is coaxially and fixedly connected with the sludge scraping shaft 432; the center of the water distributor 42 is integrally formed with a through hole for the mud scraping shaft 432 to pass through, and the mud scraping shaft 432 is not in contact with the water distributor 42. So that the water distributor 42 does not affect the rotation of the mud scraping shaft 432
To sum up, the utility model discloses a set up to a plurality of water jets of same side direction incline for spun water slowly forms the swirl in the cell body, because centrifugal formation, heavy pollutant leans on the center to deposit with higher speed, and deposits in central zone, makes and scrapes the mud effect better.
The above description is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of similar modifications and improvements can be made without departing from the inventive concept, and these should also be considered as within the protection scope of the present invention.
Claims (9)
1. The utility model provides a sled dress formula magnetic medium thoughtlessly congeals desulfurization effluent treatment plant which characterized in that: comprises a skid-mounted chassis (8), and a mixing reaction tank (1), a primary flocculation tank (2), a flocculation tank (3), a centrifugal clarification tank (4) and a multi-medium filter tank (5) which are arranged on the skid-mounted chassis (8) and are communicated in sequence; the inlet water of the mixed reaction tank (1) comes from pretreated desulfurization wastewater, and the mixed reaction tank (1) is connected with a coagulant and an organic sulfur feeding pipe (11); the primary flocculation tank (2) is connected with a magnetic medium feeding pipe (21), and the flocculation tank (3) is connected with a coagulant aid feeding pipe (31); the centrifugal clarification tank (4) comprises a tank body (41) and a water distributor (42) arranged in the tank body (41), a plurality of water spraying ports (421) are annularly and uniformly distributed on the side surface of the water distributor (42), and each water spraying port (421) is inclined towards the same side direction in the horizontal direction.
2. The skid-mounted magnetic medium coagulation desulfurization wastewater treatment device according to claim 1, characterized in that: the bottom of the centrifugal clarification tank (4) is provided with a sediment outlet, the sediment outlet is sequentially communicated with a deflocculating machine (6) and a magnetic medium recovery machine (7), the magnetic medium recovery machine (7) directly discharges the recovered magnetic medium to the primary flocculation tank (2) for recycling, and the residual sludge is discharged to a subsequent sludge treatment device for disposal.
3. The skid-mounted magnetic medium coagulation desulfurization wastewater treatment device according to claim 1, characterized in that: the inner side surface of the tank body (41) is provided with a clear liquid outlet (411) near the upper part, and the water spray opening (421) is arranged near the lower part of the water distributor (42).
4. The skid-mounted magnetic medium coagulation desulfurization wastewater treatment device according to claim 1, characterized in that: the water spraying ports (421) are arranged in multiple groups, and each group of water spraying ports (421) is arranged on the side face of the bottom of the water distributor (42).
5. The skid-mounted magnetic medium coagulation desulfurization wastewater treatment device according to claim 1, characterized in that: the water distributor (42) comprises a shell (422) and an inner cavity (423), and the water spray opening (421) is communicated with the inner cavity (423).
6. The skid-mounted magnetic medium coagulation desulfurization wastewater treatment device according to claim 1, characterized in that: the sludge scraping device is characterized by further comprising a sludge scraping motor (431), a sludge scraping shaft (432) and a sludge scraping paddle (433), wherein the sludge scraping shaft (432) is coaxially arranged in the tank body (41), the sludge scraping motor (431) drives the sludge scraping shaft (432) to rotate, and the sludge scraping paddle (433) is located at the bottom of the tank body (41) and is connected with the sludge scraping shaft (432); the center of the water distributor (42) is provided with a perforation for the mud scraping shaft (432) to pass through, and the mud scraping shaft (432) is not in contact with the water distributor (42).
7. The skid-mounted magnetic medium coagulation desulfurization wastewater treatment device according to claim 3, characterized in that: the water distributor also comprises a water inlet pipe (44), and the water inlet pipe (44) penetrates through the side wall of the tank body (41) and is communicated with the water distributor (42); the water in the water distributor (42) has pressure and is sprayed out from the water spraying opening (421).
8. The skid-mounted magnetic medium coagulation desulfurization wastewater treatment device according to claim 7, characterized in that: the level of the inlet of the water inlet pipe (44) is higher than that of the water spray opening (421).
9. The skid-mounted magnetic medium coagulation desulfurization wastewater treatment device according to claim 1, characterized in that: each water jet (421) faces clockwise or anticlockwise in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922413986.6U CN211813824U (en) | 2019-12-27 | 2019-12-27 | Skid-mounted magnetic medium coagulation desulfurization wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922413986.6U CN211813824U (en) | 2019-12-27 | 2019-12-27 | Skid-mounted magnetic medium coagulation desulfurization wastewater treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN211813824U true CN211813824U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922413986.6U Active CN211813824U (en) | 2019-12-27 | 2019-12-27 | Skid-mounted magnetic medium coagulation desulfurization wastewater treatment device |
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| Country | Link |
|---|---|
| CN (1) | CN211813824U (en) |
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- 2019-12-27 CN CN201922413986.6U patent/CN211813824U/en active Active
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