CN212581630U - Ceramic flat membrane treatment device for coal-containing wastewater of power plant - Google Patents
Ceramic flat membrane treatment device for coal-containing wastewater of power plant Download PDFInfo
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- CN212581630U CN212581630U CN202020616051.8U CN202020616051U CN212581630U CN 212581630 U CN212581630 U CN 212581630U CN 202020616051 U CN202020616051 U CN 202020616051U CN 212581630 U CN212581630 U CN 212581630U
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Abstract
The utility model discloses a power plant contains dull and stereotyped membrane processing apparatus of pottery of coal waste water, including inclined plate sedimentation tank, the dull and stereotyped membrane cisterna of pottery, plate and frame filter press and clean water basin, inclined plate sedimentation tank with the entrance point intercommunication of plate and frame filter press, inclined plate sedimentation tank with the dull and stereotyped membrane cisterna of pottery intercommunication, be equipped with two at least dull and stereotyped membrane subassemblies of pottery in the dull and stereotyped membrane cisterna of pottery, the dull and stereotyped membrane cisterna of pottery pass through the dull and stereotyped membrane subassembly of pottery with the clean. The utility model adopts the ceramic flat membrane component with small aperture, which can completely remove suspended matters, so that the treated clear water is clearer and has stable effect and is not influenced by fluctuation of the incoming water; the ceramic flat membrane assemblies run in groups, can be continuously and sequentially back-flushed and cleaned, and the equipment runs under the control of a PLC (programmable logic controller), can work for a long time without people, and is low in maintenance cost; the equipment investment is small, only a low-power self-priming pump is used for continuous operation, and the operation cost is low.
Description
Technical Field
The utility model relates to a waste water treatment technical field, concretely relates to dull and stereotyped membrane treatment device of pottery that contains coal waste water of power plant.
Background
In the normal production and operation process of a coal-fired power plant, coal conveying trestles, transfer stations, coal bunker rooms, coal grinding (crushing) machine rooms, coal conveying vehicles and other places need to be washed by water at regular time, and the water discharged after washing forms coal-containing wastewater. Coal-containing wastewater generally contains larger coal dust particles, a large amount of suspended matters and generally has black color. The coal-containing wastewater has high suspended matters and chromaticity, the wastewater cannot be directly discharged and recycled, and the coal dust is difficult to naturally settle because the coal dust has fine particles. In the current stage, suspended matters in the coal-containing wastewater are treated by two processes of coagulating sedimentation and electrocoagulation, so that the coal-containing wastewater is treated to reach the discharge standard and the reuse standard and then is used for water-using areas with low water quality requirements, such as desulfurization water, coal yard spraying, dry ash humidifying, ash yard spraying and the like.
Because suspended substance particles in the coal-containing wastewater are small, the turbidity is high, the specific gravity is light, and the surfaces of solid particles are mostly negatively charged, the coal-washing wastewater is difficult to naturally settle and clarify by means of gravity due to the reasons. When the chemical-adding flocculation treatment is adopted, a chemical-adding device is added, the chemical cost is increased, the equipment operation and maintenance workload is large, the produced water cannot be clarified and reach the standard, and the one-time investment cost of the electric flocculation process is very high. The chinese utility model patent that patent number is CN208617522U, the name is a novel coal-containing wastewater tubular membrane processing apparatus of thermal power plant provides a tubular membrane processing apparatus, though solved and handled retrieval and utilization problem up to standard, but tubular membrane device's equipment investment is high, and the system adopts the cross-flow operation, and the charges of electricity of circulating pump is very high. Therefore, the ceramic flat membrane treatment device for recycling the coal-containing wastewater is provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the ceramic flat membrane treatment device for coal-containing wastewater of a power plant is provided, and the problems that the coal-containing wastewater treatment effect is unstable and does not reach the standard, the equipment investment is large and the operation cost is high are solved effectively.
The utility model discloses a following technical scheme solves above-mentioned technical problem, the utility model discloses an inclined plate sedimentation tank, the dull and stereotyped membrane cisterna of pottery, plate and frame filter press, clean water basin, the inclined plate sedimentation tank with the entrance point intercommunication of plate and frame filter press, the upper end of inclined plate sedimentation tank with the dull and stereotyped membrane cisterna of pottery intercommunication, the dull and stereotyped membrane cisterna of pottery with the clean water basin intercommunication, be equipped with two at least dull and stereotyped membrane subassemblies of pottery in the dull and stereotyped membrane cisterna, the warp waste water after the inclined plate sedimentation tank is handled passes through get into after the filtration of the dull and stereotyped membrane subassembly.
Furthermore, the ceramic flat membrane treatment device further comprises a pressure filtration pump, and the pressure filtration pump is arranged on a pipeline between the inclined plate sedimentation tank and the plate-and-frame filter press.
Furthermore, the ceramic flat membrane treatment device further comprises a self-sucking pump, and the self-sucking pump is arranged on a pipeline between the clean water tank and the ceramic flat membrane assembly.
Furthermore, the ceramic flat membrane processing device further comprises a backwashing system, wherein the backwashing system comprises an air buffer tank and a backwashing water tank, the air buffer tank is communicated with a water outlet of the ceramic flat membrane module through the backwashing water tank, the backwashing water tank is communicated with the self-priming pump, and the quantity of the backwashing water tanks is equal to that of the ceramic flat membrane modules.
Furthermore, an aerator pipe is arranged in the ceramic flat membrane tank and is communicated with the air buffer tank.
Furthermore, the ceramic flat membrane treatment device further comprises a reflux pump, wherein the reflux pump is arranged between the inclined plate sedimentation tank and the ceramic flat membrane tank, the water inlet end of the reflux pump is communicated with the ceramic flat membrane tank, and the water outlet end of the reflux pump is communicated with the inclined plate sedimentation tank.
Still further, dull and stereotyped membrane processing apparatus of pottery still includes the PLC system, the self priming pump with be equipped with on the pipeline between the clean water basin and produce water and electricity magnetic flowmeter, the recoil water pitcher with on the pipeline between the self priming pump the recoil water pitcher with on the pipeline between the air buffer tank the aeration pipe with all be provided with the solenoid valve on the pipeline between the air buffer tank, be equipped with pressure sensor on the recoil water pitcher, produce water and electricity magnetic flowmeter, each the solenoid valve pressure sensor the plate and frame filter press the pressure filter pump the self priming pump the air buffer tank all with PLC electricity system is connected.
Furthermore, the reflux pump is associated with the water production electromagnetic flowmeter, and the recovery pump is started when the water production flow reaches a set index, so that the waste water in the ceramic flat membrane tank is pumped back into the inclined plate sedimentation tank.
Furthermore, the outlet end of the plate-and-frame filter press is communicated with the inclined plate sedimentation tank, and the waste water after filter pressing is re-conveyed into the inclined plate sedimentation tank for secondary sedimentation.
Furthermore, the pore diameter of the inner part of the ceramic flat membrane component is not more than 100 nanometers.
Compared with the prior art, the utility model has the following advantages: the ceramic flat membrane component with small aperture is adopted, so that suspended matters can be completely removed, the treated clear water is clearer, the effect is stable, and the influence of fluctuation of the incoming water is avoided; no medicament is required to be added, and the operation cost is low; the ceramic flat membrane assemblies run in groups, can be continuously and sequentially back-flushed and cleaned, and the equipment runs under the control of a PLC (programmable logic controller), can work for a long time without people, and is low in maintenance cost; the equipment investment is few, the self priming pump of only miniwatt of continuous operation, and the running cost is low, is worth being used widely.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the present embodiment provides a technical solution: a ceramic flat membrane treatment device for coal-containing wastewater of a power plant, which comprises an inclined plate sedimentation tank 7, a ceramic flat membrane tank 8, a plate and frame filter press 11 and a clean water tank 12, wherein the inclined plate sedimentation tank 7 is communicated with the inlet end of the plate and frame filter press 11, is used for carrying out filter-pressing separation on the suspended matters after precipitation, the upper end of the inclined plate precipitation tank 7 is communicated with the upper end of the ceramic flat membrane tank 8, the two tanks share one wall, the ceramic flat membrane pool 8 is communicated with the clean water pool 12, the clean water treated by the ceramic flat membrane component 10 enters the clean water pool 12, two ceramic flat membrane assemblies 10 are arranged in the ceramic flat membrane tank 8, the two ceramic flat membrane assemblies 10 are arranged in parallel, the wastewater treated by the inclined plate sedimentation tank 7 enters the clean water tank 12 after being filtered by the ceramic flat membrane assemblies 10, and the ceramic flat membrane assemblies 10 comprise ceramic flat membranes.
The ceramic flat membrane treatment device further comprises a filter-pressing pump 6, wherein the filter-pressing pump 6 is arranged on a pipeline between the inclined plate sedimentation tank 7 and the plate-and-frame filter press 11, the inlet end of the filter-pressing pump 6 is connected with the lower end of the inclined plate sedimentation tank 7, and the outlet end of the filter-pressing pump is connected with the inlet of the plate-and-frame filter press 11 and is used for inputting precipitated suspended matters into the plate-and-frame filter press 11.
Dull and stereotyped membrane processing apparatus of pottery still includes self priming pump 4, self priming pump 4 sets up clean water basin 12 with on the pipeline between the dull and stereotyped membrane module 10 of pottery for clear water after will filtering is imported in clean water basin 12.
Dull and stereotyped membrane processing apparatus of pottery still includes back flush system, back flush system includes air buffer tank 2, recoil water pitcher 5, air buffer tank 2 passes through recoil water pitcher 3 with the delivery port intercommunication of dull and stereotyped membrane module 10 of pottery, recoil water pitcher 5 through another pipeline with self priming pump 4 intercommunication, the quantity of recoil water pitcher 5 is two.
The aeration pipe is arranged in the ceramic flat membrane tank 8 and communicated with the air buffer tank 2, the purpose of aeration is to disturb the wastewater in the ceramic flat membrane tank 8 and prevent the concentration of suspended matters near the ceramic flat membrane component 10 from being too high, the multiple groups of ceramic flat membrane components 10 are controlled by the electromagnetic valve 3, and one group of ceramic flat membrane components works and one group of backwashing so as to sequentially keep the membrane flux of the ceramic flat membrane components 10.
The ceramic flat membrane treatment device further comprises a reflux pump 1, wherein the reflux pump 1 is arranged between the inclined plate sedimentation tank 7 and the ceramic flat membrane tank 8, the water inlet end of the reflux pump 1 is communicated with the ceramic flat membrane tank 8, and the water outlet end of the reflux pump 1 is communicated with the inclined plate sedimentation tank 7.
Dull and stereotyped membrane processing apparatus of pottery still includes the PLC system, self priming pump 4 with be equipped with on the pipeline between clean water basin 12 and produce water electromagnetic flowmeter, PLC system gathers and produces water electromagnetic flowmeter flow, regularly starts 11 work of plate and frame filter press. A water outlet electromagnetic valve is arranged on a pipeline between the backflushing water tank 5 and the self-sucking pump 4; a backflushing electromagnetic valve is arranged on a pipeline between the backflushing water tank 5 and the air buffer tank 2; the aeration pipe with all be provided with the aeration solenoid valve on the pipeline between the air buffer tank 2, be equipped with pressure sensor on the recoil water pitcher 2, during operation when the dull and stereotyped membrane module 10 surface filter cake of pottery reaches certain thickness, when filter pressure reaches the set point, close out the water solenoid valve, open the recoil solenoid valve, the water of compressed air pressurization recoil water pitcher 5, the dull and stereotyped membrane module 10 of back flush pottery makes the filter cake drop, resumes the filtration flux.
The water production electromagnetic flow meter, the electromagnetic valves, the pressure sensor, the plate and frame filter press 11, the filter press pump 6, the self-priming pump 4 and the air buffer tank 2 are all electrically connected with the PLC system.
The reflux pump 1 is associated with the water production electromagnetic flowmeter, the PLC system collects the water outlet flow of the water production electromagnetic flowmeter, the recovery pump 1 is started when a set index is reached, and the waste water in the ceramic flat membrane tank 8 is pumped back to the inclined plate sedimentation tank 7 for sedimentation.
The outlet end of the plate-and-frame filter press 11 is communicated with the inclined plate sedimentation tank 7, and the waste water after filter pressing is re-conveyed back to the inclined plate sedimentation tank 7 for re-sedimentation.
The pore diameter of the inner part of the ceramic flat membrane component 10 is not more than 100 nanometers.
In this embodiment, the device is mounted on an integral pry.
The working principle is as follows: in the use, coal-containing waste water firstly enters the inclined plate sedimentation tank 7, most suspended solids are separated out under the action of the plate-and-frame filter press 11 after sedimentation, the separated waste water returns to the inclined plate sedimentation tank 7, the supernatant flows into the ceramic flat membrane tank 8, all suspended solids are removed after the waste water is filtered by the ceramic flat membrane module 10, the waste water becomes up to standard purified water and enters the clean water tank 12 for recycling under the action of the self-priming pump 4, the ceramic flat membrane module 10 is provided with a timing backwashing device, when a filter cake becomes thick and the filtering resistance is increased, the PLC system automatically and sequentially performs pneumatic compressed air backwashing on the ceramic flat membrane to remove a filter cake layer on the surface of the ceramic flat membrane, the enriched suspended solids of the ceramic flat membrane tank 8 are periodically returned to the inclined plate sedimentation separation in the inclined plate sedimentation tank 7 by the reflux pump 1, and the.
In conclusion, the ceramic flat membrane treatment device for coal-containing wastewater in the power plant adopts the ceramic flat membrane component with small aperture, can completely remove suspended matters, so that the treated clear water is clearer, has stable effect and is not influenced by fluctuation of the incoming water; no medicament is required to be added, and the operation cost is low; the ceramic flat membrane assemblies run in groups, can be continuously and sequentially back-flushed and cleaned, and the equipment runs under the control of a PLC (programmable logic controller), can work for a long time without people, and is low in maintenance cost; the equipment investment is few, the self priming pump of only miniwatt of continuous operation, and the running cost is low, is worth being used widely.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a power plant contains dull and stereotyped membrane processing apparatus of pottery of coal waste water which characterized in that: the inclined plate sedimentation tank is communicated with an inlet end of the plate and frame filter press, the inclined plate sedimentation tank is communicated with the ceramic flat plate membrane tank, at least two ceramic flat plate membrane assemblies are arranged in the ceramic flat plate membrane tank, the ceramic flat plate membrane tank is communicated with the clean water tank through the ceramic flat plate membrane assemblies, and wastewater treated by the inclined plate sedimentation tank passes through the filtering of the ceramic flat plate membrane assemblies and then enters the clean water tank.
2. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 1, characterized in that: the ceramic flat membrane treatment device further comprises a filter-pressing pump, and the filter-pressing pump is arranged on a pipeline between the inclined plate sedimentation tank and the plate-and-frame filter press.
3. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 2, characterized in that: the ceramic flat membrane treatment device further comprises a self-sucking pump, and the self-sucking pump is arranged on the pipeline between the clean water tank and the ceramic flat membrane assembly.
4. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 3, characterized in that: the ceramic flat membrane processing device further comprises a backwashing system, wherein the backwashing system comprises an air buffer tank and a backwashing water tank, the air buffer tank is communicated with a water outlet of the ceramic flat membrane assembly through the backwashing water tank, the backwashing water tank is communicated with the self-priming pump, and the quantity of the backwashing water tank is equal to that of the ceramic flat membrane assembly.
5. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 4, characterized in that: and an aeration pipe is arranged in the ceramic flat plate membrane tank and communicated with the air buffer tank.
6. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 5, characterized in that: the ceramic flat membrane treatment device further comprises a reflux pump, wherein the reflux pump is arranged between the inclined plate sedimentation tank and the ceramic flat membrane tank, the water inlet end of the reflux pump is communicated with the ceramic flat membrane tank, and the water outlet end of the reflux pump is communicated with the inclined plate sedimentation tank.
7. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 6, characterized in that: ceramic plate membrane processing apparatus still includes the PLC system, the self priming pump with be equipped with on the pipeline between the clean water basin and produce water and electricity magnetic flowmeter, the recoil water pitcher with on the pipeline between the self priming pump the recoil water pitcher with on the pipeline between the air buffer tank the aeration pipe with all be provided with the solenoid valve on the pipeline between the air buffer tank, be equipped with pressure sensor on the recoil water pitcher, produce water and electricity magnetic flowmeter, each the solenoid valve pressure sensor the plate and frame pressure filter the pressure filter pump the self priming pump the air buffer tank all with PLC electricity is connected.
8. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 7, characterized in that: the reflux pump is associated with the water production electromagnetic flowmeter.
9. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 1, characterized in that: the outlet end of the plate-and-frame filter press is communicated with the inclined plate sedimentation tank.
10. The ceramic flat membrane treatment device for coal-containing wastewater of a power plant according to claim 1, characterized in that: the pore diameter of the interior of the ceramic flat membrane component is not more than 100 nanometers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020616051.8U CN212581630U (en) | 2020-04-22 | 2020-04-22 | Ceramic flat membrane treatment device for coal-containing wastewater of power plant |
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| CN202020616051.8U CN212581630U (en) | 2020-04-22 | 2020-04-22 | Ceramic flat membrane treatment device for coal-containing wastewater of power plant |
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| CN212581630U true CN212581630U (en) | 2021-02-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604990A (en) * | 2022-03-24 | 2022-06-10 | 合肥创想能源环境科技有限公司 | Energy-saving membrane integrated nano powder washing and purifying zero-discharge process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604990A (en) * | 2022-03-24 | 2022-06-10 | 合肥创想能源环境科技有限公司 | Energy-saving membrane integrated nano powder washing and purifying zero-discharge process |
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