CN215403253U - Coal industry strong brine ceramic membrane processing apparatus - Google Patents
Coal industry strong brine ceramic membrane processing apparatus Download PDFInfo
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- CN215403253U CN215403253U CN202120456297.8U CN202120456297U CN215403253U CN 215403253 U CN215403253 U CN 215403253U CN 202120456297 U CN202120456297 U CN 202120456297U CN 215403253 U CN215403253 U CN 215403253U
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Abstract
The utility model relates to a coal chemical strong brine ceramic membrane treatment device, which comprises a water inlet pipe, an off-line cleaning backflow pipe, a backwashing pipe, a water filtering pipe, a concentrated water pipe, a membrane module, a cleaning box and a water pump, wherein the membrane module is made of inorganic materials, the membrane module is composed of a membrane shell and a membrane core, the membrane core is arranged in the membrane shell to form a water inlet, a concentrated water outlet and a filtered water outlet, the water inlet pipe, the water pump and the off-line cleaning backflow pipe are communicated with a water inlet pipeline, the water filtering pipe is communicated with a filtered water outlet pipeline, the concentrated water pipe is communicated with the concentrated water outlet pipeline, the off-line cleaning pipe, the filtered water outlet pipeline and the concentrated water pipe are communicated with the cleaning box pipeline, the cleaning box is communicated with the water pump pipeline, electromagnetic valves are arranged in the water inlet pipe, the off-line cleaning backflow pipe, the backwashing pipe, the water filtering pipe, the concentrated water pipe, the membrane module, the cleaning box and the water pump, by adopting the device, the purposes of preventing the membrane component from being blocked and having good strong brine cleaning effect are achieved.
Description
Technical Field
The utility model relates to the field of membrane filtration, in particular to a coal chemical industry strong brine ceramic membrane treatment device.
Background
The concentrated brine in the coal chemical industry contains more organic pollutants, higher suspended matters and higher hardness substances, and the contained organic pollutants comprise COD, phenol, oil and the like; the hardness substances comprise Ca2+, Mg2+ and active silicon and other ions, and are typical industrial concentrated brine which contains organic compounds which are difficult to degrade and are easy to scale. At present, the most common method for treating the coal chemical industry strong brine is a precipitation and filtration process, which can effectively reduce the hardness and suspended matters in the strong brine, but has higher treatment cost and more difficulty in cleaning the filtration process. With the continuous development of industrial production technology and the stricter environmental protection requirements, the quality of the strong brine is more and more complex, the fluctuation of pollutant concentration is large, especially the strong brine with high organic content can not meet the treatment requirements after being treated by the traditional precipitation and organic membrane filtration process, and the treatment cost is increasingly high. Therefore, there is a need to improve and optimize the conventional precipitation + organic membrane filtration process and apparatus in a targeted manner to meet the processing requirements.
For the filtration treatment of coal chemical industry strong brine with small water quantity, organic membrane filtration is generally adopted. However, the treatment effect of the concentrated brine containing higher organic matters in the filtration of the organic membrane is not ideal, and the problems that the organic membrane is easily polluted, blocked and difficult to clean or even impossible to clean are easily caused. The traditional organic membrane filtering device is made of PVDF (polyvinylidene fluoride), but due to the fact that the PVDF is made of the material, the defects of unstable membrane pores, poor hydrophily and lipophobicity and the like cause a series of problems of serious membrane fouling, frequent offline cleaning and the like.
In addition, the strong brine that traditional organic membrane filter equipment only can handle pollutant concentration relatively more stable in case the great fluctuation appears in the water quality of coming water, the condition that quality of water of handling is not up to standard appears very easily, for this reason, the urgent need solve current problem.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model aims to provide a coal chemical industry strong brine ceramic membrane treatment device, which achieves the purposes of preventing a membrane component from being blocked and having a good strong brine cleaning effect.
In order to achieve the purpose, the utility model relates to a coal chemical strong brine ceramic membrane treatment device, which comprises a water inlet pipe, an off-line cleaning return pipe, a backwashing pipe, a water filtering pipe, a strong water pipe, a membrane assembly, a cleaning box and a water pump, wherein the water inlet pipe is connected with the off-line cleaning return pipe;
the membrane component is made of inorganic materials and consists of a membrane shell and a membrane core, and the membrane core is arranged in the membrane shell to form a water inlet, a concentrated water outlet and a filtered water outlet;
the water inlet pipe, the water pump and the off-line cleaning return pipe are all communicated with the water inlet pipeline, the filtered water pipe is communicated with the filtered water outlet pipeline, and the concentrated water pipe is communicated with the concentrated water outlet pipeline;
the off-line cleaning pipe, the backwashing pipe, the water filtering pipe and the concentrated water pipe are all communicated with the cleaning tank pipeline, and the cleaning tank is communicated with the water pump pipeline;
the water inlet pipe, the off-line cleaning return pipe, the backwashing pipe, the water filtering pipe, the concentrated water pipe, the membrane module, the cleaning box and the water pump are all internally provided with electromagnetic valves.
Further, the membrane component is made of inorganic silicon carbide ceramic materials.
Compared with the prior art, the utility model has the beneficial effects that:
the inorganic silicon carbide ceramic membrane is used for replacing an organic membrane, and the overflowing channel of the inorganic silicon carbide ceramic membrane is 5 times smaller than that of the PVDF organic membrane, so that the filtering area of unit volume is increased; the inorganic silicon carbide ceramic membrane is prepared by sintering, has higher stability than a PVDF organic membrane, does not generate elastic change, so that the membrane hole is stable and has higher temperature resistance, and better cleaning can be realized without considering the temperature influence during cleaning; the PVDF organic membrane can only use the high cross flow operation mode with the concentration ratio of 10:1, but the inorganic silicon carbide ceramic membrane can use the high cross flow operation mode and the low cross flow operation mode with the concentration ratio of 5: 1-10:1, even under the condition of good water quality, the device can be used for 1:9 similar to an ultrafiltration device, can better select a running mode, and can improve the water yield; the inorganic silicon carbide ceramic membrane has better hydrophile and lipophobe properties than PVDF due to self characteristics, so the inorganic silicon carbide ceramic membrane has better pollution resistance and cleaning recovery;
(1) the stability of the membrane pores is enhanced, and the filtration area of unit volume is increased;
(2) the operation mode has selectivity, and the water yield is improved;
(3) the product has better hydrophilicity and lipophobicity, and improves the stain resistance and the cleaning recovery;
(4) solves a series of problems of large floor area, frequent off-line cleaning, difficult cleaning and even impossible cleaning due to organic dirt blockage, and the like
(5) The application field of the inorganic silicon carbide ceramic membrane is expanded;
to sum up, adopt a coal industry strong brine ceramic membrane processing apparatus, can reach and prevent that the membrane module from blockking up and the good purpose of strong brine cleaning performance.
Drawings
FIG. 1 is a process flow diagram of a ceramic membrane treatment device for strong brine in coal chemical industry according to the present invention;
FIG. 2 is a schematic diagram of a membrane module of a coal chemical industry strong brine ceramic membrane treatment device.
In the figure: 1. a water inlet pipe; 2. washing the pipe off line; 3. backwashing the tubes; 4. a water filtering pipe; 5. a concentrated water pipe; 6. off-line cleaning a return pipe; 7. a cleaning tank; 8. a water pump; 9. a membrane module; 9a, a membrane shell; 9b, a membrane core; 9d, a water inlet; 9e, a concentrated water outlet; 9c and a filtered water outlet.
Detailed Description
To explain the technical content, structural features, attained objects and effects of the present invention in detail, embodiments are described below in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
Referring to fig. 1 and also to fig. 2, the present invention provides an embodiment:
the utility model provides a coal chemical industry strong brine ceramic membrane processing device for achieving the purpose, which comprises a water inlet pipe 1, an off-line cleaning pipe 2, a backwashing pipe 3, a filtering water pipe 4, a concentrated water pipe 5, an off-line cleaning return pipe 6, a cleaning box 7, a water pump 8 and a membrane component 9;
the membrane assembly 9 is made of inorganic materials, the membrane assembly 9 is composed of a membrane shell 9a and a membrane core 9b, and the membrane core 9b is arranged in the membrane shell 9a to form a water inlet 9d, a concentrated water outlet 9e and a filtered water outlet 9 c;
the water inlet pipe 1, the water pump 8 and the off-line cleaning return pipe 6 are in pipeline communication with the water inlet 9d, the filtered water pipe 4 is in pipeline communication with the filtered water outlet 9c, and the concentrated water pipe 5 is in pipeline communication with the concentrated water outlet 9 e;
the off-line cleaning pipe 2, the backwashing pipe 3, the water filtering pipe 4 and the concentrated water pipe 5 are all in pipeline communication with the cleaning tank 7, and the cleaning tank 7 is in pipeline communication with the water pump 8;
electromagnetic valves are arranged in the water inlet pipe 1, the off-line cleaning pipe 2, the off-line cleaning return pipe 6, the backwashing pipe 3, the water filtering pipe 4, the concentrated water pipe 5, the membrane module 9, the cleaning tank 7 and the water pump 8;
the inorganic silicon carbide ceramic membrane is used for replacing an organic membrane, and the overflowing channel of the inorganic silicon carbide ceramic membrane is 5 times smaller than that of the PVDF organic membrane, so that the filtering area of unit volume is increased; the inorganic silicon carbide ceramic membrane is prepared by sintering, has higher stability than a PVDF organic membrane, does not generate elastic change, so that the membrane hole is stable and has higher temperature resistance, and better cleaning can be realized without considering the temperature influence during cleaning; the PVDF organic membrane can only use the high cross flow operation mode with the concentration ratio of 10:1, but the inorganic silicon carbide ceramic membrane can use the high cross flow operation mode and the low cross flow operation mode with the concentration ratio of 5: 1-10:1, even under the condition of good water quality, the device can be used for 1:9 similar to an ultrafiltration device, can better select a running mode, and can improve the water yield; the inorganic silicon carbide ceramic membrane has better hydrophile and lipophobe properties than PVDF due to self characteristics, so the inorganic silicon carbide ceramic membrane has better pollution resistance and cleaning recovery;
(1) the stability of the membrane pores is enhanced, and the filtration area of unit volume is increased;
(2) the operation mode has selectivity, and the water yield is improved;
(3) the product has better hydrophilicity and lipophobicity, and improves the stain resistance and the cleaning recovery;
(4) solves a series of problems of large floor area, frequent off-line cleaning, difficult cleaning and even impossible cleaning due to organic dirt blockage, and the like
(5) The application field of the inorganic silicon carbide ceramic membrane is expanded;
to sum up, adopt a coal industry strong brine ceramic membrane processing apparatus, can reach and prevent that the membrane module from blockking up and the good purpose of strong brine cleaning performance.
Further, the membrane module 9 is made of inorganic silicon carbide ceramic material;
the inorganic silicon carbide ceramic membrane has more chemical resistance than the organic PVDF membrane, so the problem that the organic pollution blockage is difficult to clean and even can not be cleaned is solved;
the process flow comprises the following steps:
(a) the coal chemical industry strong brine after being adjusted in quality and quantity firstly passes through the water inlet pipe 1 and enters the membrane component 6, through the filtering action of the membrane component 6, filtered water is produced through the water filtering pipe 4, and the strong water flows out through the strong water pipe 5 (the opening and closing conditions of the electromagnetic valves are that the electromagnetic valve v2, the electromagnetic valve v6 and the electromagnetic valve v8 are opened, and other electromagnetic valves are closed);
(b) stopping water inlet through time control, enabling backwash water to enter the membrane assembly 9 through the backwash pipe 3, and discharging backwash drainage through the concentrated water pipe 5 (the opening and closing conditions of the electromagnetic valves are that the electromagnetic valves v5 and the electromagnetic valve v8 are opened, and other electromagnetic valves are closed);
(c) and (b) circulating the flows (a) and (b) in sequence, after a set period, strengthening the cleaning membrane assembly 9 through the cleaning tank 7 and the water pump 8 (the left side of the cleaning tank 7 is filled with acid-containing solution, the right side of the cleaning tank is filled with alkali-containing solution, when the first set period is reached, acid cleaning is carried out, namely, firstly, opening the solenoid valve v6 and the solenoid valve v8 to drain the water solution in the membrane assembly 9, then, opening the solenoid valve v9, the solenoid valve v10, the solenoid valve v12 and the solenoid valve v4, closing all other solenoid valves, starting the water pump 8 to circulate the acid-containing solution for 5-10min, then, closing the water pump 8, the solenoid valve v4, the solenoid valve v9, the solenoid valve v10 and the solenoid valve v12 to soak for 2-3min, then, opening the solenoid valve v9 and the solenoid valve v10 to drain the acid-containing solution to the cleaning tank 7, and finally, executing the step (a) operation equipment, and when the second set period is reached, firstly, alkali cleaning is carried out, namely, firstly, opening the solenoid valve v6 and discharging the solenoid valve v8 to drain the membrane assembly 9 to drain the water cleaning equipment The reclaimed water solution is then opened through an electromagnetic valve v9, an electromagnetic valve v11, an electromagnetic valve v13 and an electromagnetic valve v4, all other electromagnetic valves are closed, the water pump 8 is started to circulate the acid-containing solution for 5-10min, then the water pump 8, the electromagnetic valve v4, the electromagnetic valve v9, the electromagnetic valve v11 and the electromagnetic valve v13 are closed to soak for 2-3min, then the electromagnetic valve v9 and the electromagnetic valve v11 are opened to empty the alkali-containing solution into the washing water tank 7, and finally the step a) operation equipment is executed; the reinforced acid-base cleaning membrane components are alternately arranged, the cleaning time is short, and the acid-base solution can be stored for a long time to avoid medicament waste);
(d) if the cleaning effect in the process (c) is not ideal, off-line cleaning agent enters the membrane module 9 device through the off-line cleaning pipe 2, returns to an external off-line cleaning water tank through the off-line cleaning return pipe 6, and is circulated, soaked and cleaned for a long time until the membrane module 9 device is cleaned, then off-line cleaning is stopped, and finally the processes (a) - (b) - (c) are sequentially circulated (when off-line cleaning is performed, the electromagnetic valves v3, v9 and v1 are opened, other electromagnetic valves are closed, the off-line cleaning agent is circulated for at least 0.5-1h, then the electromagnetic valves v1, v3 and v9 are closed to soak the membrane module for 0.5-1h, then the electromagnetic valve v1 is opened to discharge cleaning agent, and clean water is put into the off-line cleaning water tank to clean the membrane module, the process is performed manually due to the long off-line cleaning time);
(e) if the cleaning effect is achieved in the process (c), sequentially circulating the processes (a) - (b) - (c), and judging whether the cleaning effect is achieved in the process (c) through the water flow rate filtered by the membrane module 9 and the pressure difference between the water inlet and the filtered water (the steps a, b and c are completely automatic);
(f) when the water level of the current equipment is too low or the water level of the rear equipment is too high, the operation is automatically stopped, and backwashing and reinforced cleaning are automatically carried out once.
(g) When the water quality is good, the operation modes of the valve replacement on the water inlet pipe 1, the thick water pipe 5 and the filtering water pipe 4 can be adjusted to achieve the effect of increasing the filtering water quantity
The application discloses a coal industry strong brine ceramic membrane processing apparatus possesses following advantage:
1. the stability of the membrane pores is improved, the pollution resistance is enhanced, and the cleaning recovery is improved, so that an ideal treatment effect is achieved;
2. expanding the new application field of the inorganic silicon carbide film;
3. the operation mode can be adjusted according to the water quality condition, and the water yield is improved.
Claims (2)
1. The utility model provides a coal industry strong brine ceramic membrane processing apparatus which characterized in that: comprises a water inlet pipe (1), an off-line cleaning pipe (2), a backwashing pipe (3), a water filtering pipe (4), a concentrated water pipe (5), an off-line cleaning return pipe (6), a cleaning box (7), a water pump (8) and a membrane component (9);
the membrane component (9) is made of inorganic materials, the membrane component (9) is composed of a membrane shell (9a) and a membrane core (9b), and the membrane core (9b) is arranged in the membrane shell (9a) to form a water inlet (9d), a concentrated water outlet (9e) and a filtered water outlet (9 c);
the water inlet pipe (1), the water pump (8) and the off-line cleaning return pipe (6) are in pipeline communication with the water inlet (9d), the filtered water pipe (4) is in pipeline communication with the filtered water outlet (9c), and the concentrated water pipe (5) is in pipeline communication with the concentrated water outlet (9 e);
the off-line cleaning pipe (2), the backwashing pipe (3), the water filtering pipe (4) and the concentrated water pipe (5) are all communicated with the cleaning box (7) through pipelines, and the cleaning box (7) is communicated with the water pump (8) through pipelines;
the water inlet pipe (1), the off-line cleaning pipe (2), the off-line cleaning return pipe (6), the backwashing pipe (3), the water filtering pipe (4), the concentrated water pipe (5), the membrane assembly (9), the cleaning box (7) and the water pump (8) are all internally provided with electromagnetic valves.
2. The coal chemical industry strong brine ceramic membrane processing apparatus according to claim 1, wherein: the membrane component (9) is made of inorganic silicon carbide ceramic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120456297.8U CN215403253U (en) | 2021-03-03 | 2021-03-03 | Coal industry strong brine ceramic membrane processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120456297.8U CN215403253U (en) | 2021-03-03 | 2021-03-03 | Coal industry strong brine ceramic membrane processing apparatus |
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| Publication Number | Publication Date |
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| CN215403253U true CN215403253U (en) | 2022-01-04 |
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| CN202120456297.8U Active CN215403253U (en) | 2021-03-03 | 2021-03-03 | Coal industry strong brine ceramic membrane processing apparatus |
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| CN (1) | CN215403253U (en) |
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- 2021-03-03 CN CN202120456297.8U patent/CN215403253U/en active Active
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