Vanadium-containing wastewater treatment device based on catalyst regeneration technology
Technical Field
The utility model relates to a waste water treatment technical field, concretely relates to contain vanadium effluent treatment plant based on catalyst regeneration technology.
Background
The SCR denitration catalyst is generally used in the existing SCR denitration system of a power plant, and similarly, the activity of the SCR denitration catalyst is reduced after the SCR denitration catalyst is used for a certain time, so that regeneration treatment is needed, a large amount of metal ions are washed out in the regeneration and cleaning process of the SCR denitration catalyst, and the treatment of wastewater containing vanadium is troublesome.
Current chinese utility model patent for patent No. 201721870151.8 discloses a SCR catalyst regeneration process contains vanadium effluent disposal system, and this effluent disposal system carries out the flocculation and precipitation through putting in ferrous sulfate, sodium hydroxide, reaches waste water treatment's effect, but, waste water has the deposit also to get into the pipeline when taking out through the pump, has the risk of blockking up the pipeline.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, contain the effectual effluent treatment plant of vanadium effluent treatment to the not enough of existence among the above-mentioned background art.
In order to realize the purpose, the utility model relates to a contain vanadium effluent treatment plant based on catalyst regeneration technology has adopted following technical scheme:
the utility model provides a vanadium effluent treatment plant based on catalyst regeneration technique, is including the reaction tank that is used for handling waste water, the inside baffle that is provided with of reaction tank, the baffle upper end is provided with filtration, filtration includes filter screen and plug bush in the connecting portion of baffle upper end, a lateral wall that the reaction tank is close to the filter screen is provided with ferrous sulfate and throws into the mouth, the mouth is thrown into to the sodium hydroxide, the baffle is the expansion plate, a lateral wall that the reaction tank is close to the filter screen communicates in the wastewater disposal basin, a lateral wall that the reaction tank kept away from the filter screen is provided with the outlet pipe.
The utility model relates to a vanadium-containing wastewater treatment device based on catalyst regeneration technology, which is further improved in that the filter screen is inclined upwards.
The utility model relates to a vanadium effluent treatment plant's further improvement part based on catalyst regeneration technique lies in, the outlet pipe is provided with the internal thread, the outlet pipe spiro union has supplementary outlet pipe, one side that supplementary outlet pipe was kept away from to the outlet pipe internal thread is provided with the baffle, supplementary outlet pipe is contradicted the baffle, the baffle with be provided with the second filter screen between the supplementary outlet pipe, one side that supplementary outlet pipe was kept away from to the second filter screen is provided with the filter cloth.
The utility model relates to a vanadium-containing wastewater treatment device based on catalyst regeneration technology, which is further improved in that a discharge port for discharging precipitates is arranged below the reaction tank.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses be provided with filtration in the reaction tank to be provided with the filter screen in outlet pipe department equally, replace the pressure filter and realized the solid-liquid separation's of physics the condition, optimized the structure that contains vanadium waste water treatment, the waste water treatment effect is also the preferred simultaneously.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: the device comprises a reaction tank 1, a partition plate 2, a connecting part 3, a filter screen 4, a water outlet pipe 5, an auxiliary water outlet pipe 6, an internal thread 7, a baffle plate 8 and a second filter screen 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figure 1, a vanadium effluent treatment plant based on catalyst regeneration technology, including the reaction tank 1 that is used for handling waste water, the inside baffle 2 that is provided with of reaction tank, the baffle upper end is provided with filtration structure, filtration structure includes filter screen 4 and plug bush in connecting portion 3 of baffle upper end, the filter screen tilt up sets up, a lateral wall that the reaction tank is close to the filter screen is provided with ferrous sulfate and throws the mouth, sodium hydroxide and throws the mouth into, the baffle is the expansion plate, and the expansion plate includes a plurality of flexible sections, and the inside telescoping cylinder that is provided with of expansion plate, the free end and the baffle top of expansion cylinder are connected, a lateral wall that the reaction tank is close to the filter screen communicates in the wastewater disposal basin, a lateral wall that the filter screen was kept away from to the reaction tank is provided with outlet pipe 5. And a discharge hole for discharging the precipitate is also arranged below the reaction tank. The wastewater is contained between the partition board and the side wall of the reaction tank, and then ferrous sulfate and sodium hydroxide are added by a ferrous sulfate inlet and a sodium hydroxide inlet in a step-by-step manner to realize the flocculation precipitation treatment of the vanadium-containing wastewater, after standing, the wastewater is descended by the expansion plate, supernatant liquid flows out from the other side of the partition board to the water outlet pipe, and the arrangement of the filter screen ensures that precipitates cannot flow to the pipeline.
Further, the outlet pipe is provided with internal thread 7, the outlet pipe spiro union has supplementary outlet pipe 6, the one side that supplementary outlet pipe was kept away from to the outlet pipe internal thread is provided with baffle 8, supplementary outlet pipe is contradicted the baffle, the baffle with be provided with second filter screen 9 between the supplementary outlet pipe, one side that supplementary outlet pipe was kept away from to the second filter screen is provided with the filter cloth. And a filter screen is arranged at the outlet of the water outlet pipe, so that precipitates are always kept in the reaction tank, and the subsequent process cannot be influenced.
The utility model discloses a theory of operation does: after the wastewater enters the reaction tank, ferrous sulfate and sodium hydroxide are added step by step to realize flocculation and precipitation of the vanadium-containing wastewater, the expansion plate descends again to discharge the wastewater, the filter screen and the second filter screen ensure further separation of solid and liquid, and the structure for treating the vanadium-containing wastewater is optimized while the wastewater treatment effect is ensured.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.