CN206940455U - A kind of desulfurization wastewater retracting device - Google Patents
A kind of desulfurization wastewater retracting device Download PDFInfo
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- CN206940455U CN206940455U CN201720645748.6U CN201720645748U CN206940455U CN 206940455 U CN206940455 U CN 206940455U CN 201720645748 U CN201720645748 U CN 201720645748U CN 206940455 U CN206940455 U CN 206940455U
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- desulfurization wastewater
- dragveyer
- retracting device
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Abstract
The utility model discloses a kind of desulfurization wastewater retracting device, including wastewater disposal basin, pipeline, flange, valve, water pump and dragveyer, wastewater disposal basin, water pump and dragveyer pass sequentially through pipeline connection, and flange and valve are provided with pipeline.Because desulfurization wastewater salt content is higher, the discharge of desulfurization wastewater can directly contribute the change of soil and physical and chemical properties of water, destroy soil ecology, influence aquatile and earth's surface and underground water source, the utility model is run with desulfurization wastewater come moisturizing dragveyer hull water level, the rate of water make-up of recirculated water is reduced, saves water resource.In addition, the utility model is simple in construction, it is easy to operate.
Description
Technical field
Desulfurization wastewater processing technology field is the utility model is related to, it particularly relates to a kind of desulfurization wastewater retracting device.
Background technology
Thermal power plant is using the SO in lime stone-gypsum wet flue gas desulfurizing technology removing flue gas2.In wet process of FGD
In technique, in order to maintain system stable operation and ensure gypsum product matter, it is necessary to control Cl- concentration in slurries can not be too high, because
This need to discharge a part of slurries, so as to produce desulfurization wastewater.Stone of the impurity of heat-engine plant desulfurized waste water from flue gas and desulfurization
Lime stone, mainly including suspension, oversaturated sulphite, sulfate and heavy metal：Wherein it is much national environmental standard
Middle the first pollutant for requiring control is larger due to the particularity of water quality, desulfurization wastewater intractability；It is simultaneously as various heavy
Metal ion has very strong contaminative to environment, therefore, it is necessary to individually be handled desulfurization wastewater.China's power plant desulfurization wastewater
Processing mode species it is various, greatly to being divided into two kinds：(1) desulfurization wastewater of high concentration is sprayed into clinker, is absorbed by clinker de-
Heavy metal and salt in sulphur waste water, reach the purpose for reducing the concentration of heavy metal and villaumite in solution, put into practice conclusion and teach that
The method has the effect of certain really, but heavy metal, chloride content are still very high, again during this solution of reuse, usually causes
The spray head of spray equipment blocks (salt content is too high, and evaporative crystallization is too fast, causes blocking)；(2) (it is commonly called as using chemical precipitation method
Three headers precipitate) processing desulfurization wastewater, the desulfurization wastewater water after processing is smaller but salt content is very high, is directly easily made after discharge
Into secondary pollution.Therefore, there is an urgent need to work out a kind of device or technique that can effectively handle desulfurization wastewater.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of device that can effectively handle desulfurization wastewater, to solve
The larger and existing technical problem of desulfurization wastewater intractability.
The utility model solves above-mentioned technical problem by the following technical programs：
A kind of desulfurization wastewater retracting device, including wastewater disposal basin, pipeline, flange, valve, water pump and dragveyer, wastewater disposal basin,
Water pump and dragveyer pass sequentially through pipeline connection, and pipeline leads to flange connection, valve is provided with pipeline.
The dragveyer lower groove bottom plate whole lining cutting glass-ceramic basalt plate.
The dragveyer oblique ascension section cell body and horizontal segment lower groove are made using structural steel Q235-A.
Bituminous epoxy paint brushing is formed and applied by the dragveyer with the inner panel that desulfurization wastewater directly contacts using QDH-1 types thickness
Layer.
The coating layer thickness is not less than 150 μm.
The wastewater disposal basin is provided with water inlet.
The wastewater disposal basin, flange, valve and water pump are made of 304 stainless steels, cupric oxide or nickel-bass alloy material.
The pipeline is made of polytetrafluoroethylene (PTFE) or stainless steel material.
The beneficial effects of the utility model are：Because desulfurization wastewater salt content is higher, the discharge of desulfurization wastewater can be direct
The change of soil and physical and chemical properties of water is caused, soil ecology is destroyed, influences aquatile and earth's surface and underground water source, this reality
Run with new with desulfurization wastewater come moisturizing dragveyer hull water level, reduce the rate of water make-up of recirculated water, save water resource.In addition,
The utility model is simple in construction, easy to operate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1~water inlet；2~wastewater disposal basin；3~flange；4~water pump；5~valve；6~pipeline；7~dragveyer.
Embodiment
In order to facilitate the understanding of those skilled in the art, the utility model is done into one below in conjunction with embodiment and accompanying drawing
The description of step.Embodiment is only to the utility model for example, not being to restriction of the present utility model, in embodiment not
The step of illustrating is prior art, is not described in detail herein.
Embodiment one
A kind of desulfurization wastewater retracting device, as shown in figure 1, including wastewater disposal basin 2, pipeline 6, flange 3, valve 5, water pump 4 with
And dragveyer 7, wastewater disposal basin 2, water pump 4 and dragveyer 7 pass sequentially through pipeline 6 and connected, pipeline 6 is connected by flange 3, by adopting
Pipeline 6 is connected with flange, the convenient disassembly when pipeline 6 needs to overhaul or changed, valve 5 is provided with pipeline 6, passes through valve
The control of door 5 passes through the water in pipeline 6.The wastewater disposal basin 2 is provided with water inlet.
Before desulfurization wastewater is fully incorporated the wet dreg removing system of zero overflow, desulfurization wastewater amount is necessarily less than or equal to because of Boiler radiation
Evaporate the water sum that the water taken away is taken away with wet deslagging, the wet deslagging water treatment system car water taken away of mucking haulage accounts for total quantity of slag
25~30%.Rule of thumb and preresearch estimates, during 1 600MW zero overflow of unit, rate of water make-up can reach between 15~30t/h
To water balance and heat balance.Under normal condition, the desulfurization wastewater of 1 600MW unit all fills into immersion type scraper plate and drags for slag
During 7 hull of machine, dragveyer 7 does not deposit flooding problems.Sometimes also need to maintain the hull ordinary water level of dragveyer 7 with recirculated water to supplement
Operation.The Cl- concentration that desulfurization wastewater is not introduced into chemical analysis before wet dreg removing system is 1200~1800mg/L, and desulfurization wastewater is whole
The Cl- concentration for introducing chemical analysis after the wet dreg removing system of zero overflow mixes is 2800~3200mg/L, is shown according to related data
Cl- is about 0.8mm/a to the rate of corrosion of equipment in Slag-water system, and in order to ensure the safe operation of dragveyer 7, dragveyer is entered
The specific anti-corrosion protection of row, conveying water pump 4, pipeline 6, flange 3 and the valve 5 of desulfurization wastewater all should use resistance to desulfurization wastewater rotten
The material of erosion is made.Preferably, the wastewater disposal basin 2, flange 3, valve 5 and water pump 4 using 304 stainless steels, cupric oxide or
Nickel-bass alloy material is made.The pipeline 6 is made of polytetrafluoroethylene (PTFE) or stainless steel material.
Dragveyer 7 uses QDH-1 types thickness by bituminous epoxy paint brushing, coating layer thickness with the inner panel that desulfurization wastewater directly contacts
Not less than 150 μm, the lower groove bottom plate whole lining cutting glass-ceramic basalt plate of dragveyer 7, due to the oblique ascension section cell body of dragveyer 7 and level
Section lower groove only contacts wet slag, is not directly contacted with desulfurization wastewater, without considering etching problem, therefore the oblique ascension section groove of dragveyer 7
Body and horizontal segment lower groove are made using structural steel Q235-A.
Using the device, the desulfurization wastewater not waste discharge to outside system, so as to saving water resource and environmental protection.Consider
The etching problem of desulfurization wastewater, take effective anticorrosive measure, it is ensured that unit safety reliability operation, reduce equipment fortune
Row maintenance cost, reduce operation maintenance workload.
It is described above, only it is preferable example of the present utility model, not makees any formal limitation to the utility model,
It is any above example to be made any without departing from the content of the technical scheme of the utility model, foundation the technical essence of the utility model
Simple modification, coversion material equivalent variations and modification, in the range of still falling within technical solutions of the utility model.
Claims (8)
- A kind of 1. desulfurization wastewater retracting device, it is characterised in that：Including wastewater disposal basin (2), pipeline (6), flange (3), valve (5), Water pump (4) and dragveyer (7), wastewater disposal basin (2), water pump (4) and dragveyer (7) pass sequentially through pipeline (6) connection, pipeline (6) connected by flange (3), valve (5) is provided with pipeline (6).
- 2. desulfurization wastewater retracting device as claimed in claim 1, it is characterised in that：Dragveyer (7) the lower groove bottom plate is complete Portion's lining cutting glass-ceramic basalt plate.
- 3. desulfurization wastewater retracting device as claimed in claim 1 or 2, it is characterised in that：Dragveyer (7) the oblique ascension section cell body It is made with horizontal segment lower groove using structural steel Q235-A.
- 4. desulfurization wastewater retracting device as claimed in claim 1, it is characterised in that：The dragveyer (7) and desulfurization wastewater are straight Bituminous epoxy paint brushing is formed coating by the inner panel of contact using QDH-1 types thickness.
- 5. desulfurization wastewater retracting device as claimed in claim 4, it is characterised in that：The coating layer thickness is not less than 150 μm.
- 6. desulfurization wastewater retracting device as claimed in claim 1, it is characterised in that：The wastewater disposal basin (2), flange (3), valve (5) and water pump (4) is made of 304 stainless steels, cupric oxide or nickel-bass alloy material.
- 7. desulfurization wastewater retracting device as claimed in claim 1, it is characterised in that：The wastewater disposal basin (2) is provided with water inlet.
- 8. desulfurization wastewater retracting device as claimed in claim 1, it is characterised in that：The pipeline (6) uses polytetrafluoroethylene (PTFE) Or stainless steel material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720645748.6U CN206940455U (en) | 2017-06-06 | 2017-06-06 | A kind of desulfurization wastewater retracting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720645748.6U CN206940455U (en) | 2017-06-06 | 2017-06-06 | A kind of desulfurization wastewater retracting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089690A (en) * | 2017-06-06 | 2017-08-25 | 大唐贵州发耳发电有限公司 | A kind of desulfurization wastewater recycle device |
| CN111911944A (en) * | 2020-06-24 | 2020-11-10 | 中国电建集团河北省电力勘测设计研究院有限公司 | Novel wet-type deslagging system |
-
2017
- 2017-06-06 CN CN201720645748.6U patent/CN206940455U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089690A (en) * | 2017-06-06 | 2017-08-25 | 大唐贵州发耳发电有限公司 | A kind of desulfurization wastewater recycle device |
| CN111911944A (en) * | 2020-06-24 | 2020-11-10 | 中国电建集团河北省电力勘测设计研究院有限公司 | Novel wet-type deslagging system |
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