CN218106935U - Oily wastewater filtering equipment for high salinity and high turbidity - Google Patents
Oily wastewater filtering equipment for high salinity and high turbidity Download PDFInfo
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- CN218106935U CN218106935U CN202222538974.8U CN202222538974U CN218106935U CN 218106935 U CN218106935 U CN 218106935U CN 202222538974 U CN202222538974 U CN 202222538974U CN 218106935 U CN218106935 U CN 218106935U
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Abstract
The invention discloses oil-containing wastewater filtering equipment for high mineralization and high turbidity, which comprises a water distributor, a filtering tank body, an effluent collecting chamber, a filter material extracting device and a filter material cleaning chamber, wherein the water distributor is connected with the filter tank body; the water outlet collecting chamber is arranged on the side surface of the filtering tank body and communicated with the filtering tank body, and the water distributor is arranged in the filtering tank body; the filter material cleaning chamber is arranged at the upper part of the filter tank body, and the bottom of the filter material cleaning chamber is provided with a clean filter material outlet; a coarse filter material chamber, a fine filter material chamber, a coarse filter material chamber to be cleaned and a fine filter material chamber to be cleaned are arranged in the filtering tank body; the filter material extraction device comprises a coarse filter material extraction device and a fine filter material extraction device; the filter materials with different grain diameters can be continuously circulated in a layered mode in the whole process, and the filter materials in different interlayers can be cleaned to remove more than 90% of oil-containing substances and suspended matters.
Description
Technical Field
The invention relates to the technical field of oily wastewater treatment with high salinity and high turbidity in petroleum and petrochemical industry, natural gas exploitation, coal chemical industry and the like, in particular to oily wastewater filtering equipment for high salinity and high turbidity.
Background
In the direction of solid-liquid separation of high-salinity and high-turbidity oily wastewater, the traditional filtering devices adopted at present mainly comprise a multi-medium filter, a quartz sand filter, a fiber filter, a security filter, a self-cleaning filter and the like. However, when the oily wastewater with high mineralization and high turbidity is filtered by a traditional filter, as time increases, dirt intercepted in the upper surface layer of the filter layer cannot be effectively removed, so that the problems of serious filter blockage and hardening of the filter material exist, the filter cannot stably run for a long time, and the service life of the filter material is also greatly influenced. During subsequent backwashing, uneven backwash air distribution can result in uneven expansion heights. When the backwash air is rubbed, impurities such as oil stains on the surface of the filter material cannot be effectively removed at a place where the friction momentum is small. After the next normal filtration cycle is put into operation, the local load will increase, impurities will sink from the surface into the interior, and particles will gradually build up and extend to the depth of the filter fill until the entire filter fails. The filtering material particles on the surface of the filtering layer are fine, the collision probability is small, the momentum is small during back washing, and the cleaning is not easy. The attached sand particles are easy to form small mud balls, and after the filter layer is graded again after backflushing, the mud balls enter the lower filter material and move deeper along with the growth of the mud balls. The traditional filtering process can not avoid the problems, and the problems of low efficiency, hardening and blockage of the filter are particularly obvious.
Therefore, comprehensively considering the aspects of safety, environmental protection, hardening prevention, cost and the like, the development of the oily wastewater filtering equipment for high salinity and high turbidity is imperative.
Disclosure of Invention
The invention aims to solve the problems of hardening blockage, low treatment efficiency and the like of a filter material caused by filtering oily wastewater with high salinity and high turbidity. The filtering materials with different grain diameters can be continuously circulated in a layering way in the whole process, and the filtering materials in different interlayers can be cleaned to remove more than 90 percent of oil-containing substances and suspended substances.
The specific technical scheme is as follows:
a filtering device for oily wastewater with high mineralization degree and high turbidity comprises a water distributor, a filtering tank body, an effluent collecting chamber, a filter material extracting device and a filter material cleaning chamber;
the effluent collecting chamber is arranged on the side surface of the filtering tank body and is communicated with the filtering tank body, and the effluent collecting chamber is provided with an effluent outlet; the water distributor is arranged in the filtering tank body; the filter material cleaning chamber is arranged at the upper part of the filter tank body, and the bottom of the filter material cleaning chamber is provided with a clean filter material outlet; the sewage enters the filtering tank body from the water inlet pipe above the water distributor, is filtered by the filter material in the filtering material chamber, and the filtered water enters the water outlet collecting chamber through the water distribution holes, and finally flows out from the water outlet pipe on the side surface of the water outlet collecting chamber.
A coarse filter material chamber, a fine filter material chamber, a coarse filter material chamber to be cleaned and a fine filter material chamber to be cleaned are arranged in the filtering tank body; the coarse filter material chamber and the fine filter material chamber are isolated from the coarse filter material chamber to be cleaned and the fine filter material chamber to be cleaned below through a supporting plate, a conical baffle plate is arranged in the middle of the supporting plate, and a clearance groove is reserved between the conical baffle plate and the supporting plate, so that the dirty filter material and the sewage in the coarse filter material chamber slowly slide down to the coarse filter material chamber to be cleaned; the outer edge of the supporting plate and the inner wall of the filtering tank body are also provided with clearance grooves for the fine filter material and the sewage to flow to a fine filter material chamber to be cleaned;
the filter material extraction device comprises a coarse filter material extraction device and a fine filter material extraction device; the coarse filter material extracting device is arranged in the filter tank body and is communicated with a coarse filter material cleaning chamber and a filter material cleaning chamber; the fine filter material extraction device is arranged outside the filter tank body and is communicated with a fine filter material cleaning chamber and a filter material cleaning chamber; and respectively sending the dirt-containing filter material and the sewage in the coarse filter material cleaning chamber and the fine filter material cleaning chamber into the filter material cleaning chamber through a coarse filter material extraction device and a fine filter material extraction device.
Coarse filter material extraction element treats the indoor 1# elevator pump of washroom including locating the coarse filter material to be connected with the filter material washroom through 1# extraction tube.
The fine filter material extraction device comprises a 2# extraction pipe communicated with the fine filter material chamber to be cleaned, and the 2# extraction pipe and the 3# extraction pipe are connected with the filter material cleaning chamber through a 2# lifting pump.
The 3# extraction pipe of the fine filter material extraction device is internally provided with a helical blade, and the 3# extraction pipe internally contains a dirty filter material and sewage and can generate centrifugal action in the upward extraction and flowing process due to the helical guide of the helical blade, so that the pollutant is separated from the filter material.
The filter material extraction element connects compressed gas, and 1# elevator pump, 2# elevator pump are pneumatic elevator pump, and compressed gas gives 1# elevator pump or 2# elevator pump air feed through pipeline and valve control respectively, and the control gas flow is to realize the layering and wash. The compressed gas can be selected according to the water quality and safety requirements of the working condition site, can be air or nitrogen and the like, and can also flush the dirt on the surface of the dirt-containing filter material.
The filter material cleaning chamber comprises a filter material cleaning tank body, an inner ring baffle is arranged in the filter material cleaning tank body, a fluid channel is arranged below the inner ring baffle and the filter material cleaning tank body, and an exhaust port is arranged above the space between the inner ring baffle and the filter material cleaning tank body; the lower part of the filter material cleaning tank body is provided with an inverted L-shaped waste water pipe; the filter material cleaning tank body is communicated with the 1# extraction pipe and the 3# extraction pipe.
The dirty filter material and the sewage in the filter material cleaning chamber enter the filter material cleaning chamber through the filter material extraction device, firstly are beaten on the inner ring baffle, part of the dirty material on the surface of the dirty filter material can be beaten off through impact, the dirt removing filter material quickly sinks and accumulates to the bottom of the filter material cleaning tank body under the action of gravity, is slowly discharged from a clean filter material outlet, enters the filter material chamber of the filter tank body again through the filter material sliding bin below, and certainly, part of the sewage returns to the filter material chamber of the filter tank body along with the dirty filter material; the dirt materials which are removed from the dirt-containing filter material are mixed in the sewage to form suspended matters, and then the water level in the filter material cleaning tank body rises due to the blocking of the dirt-containing filter material which sinks and accumulates, and then the water is discharged from the L-shaped wastewater pipe; and the gas of the filter material extraction device is exhausted from the exhaust port.
A filter material sliding bin is arranged below a clean filter material outlet at the bottom of the filter material cleaning chamber; the smooth storehouse of filter material is the smooth storehouse of concertina type, and it includes respectively with the slide storehouse of filtering jar internal wall swing joint, hydraulic stem, the slide storehouse bottom is connected to the other end of hydraulic stem. When the filter material cleaning chamber is in a coarse filter material cleaning state, the hydraulic rod is opened, the bottom end of the sliding plate bin is positioned above the coarse filter material chamber, and the cleaned coarse filter material falls into the coarse filter material chamber conveniently; when the filter material cleaning chamber is in a fine filter material cleaning state, the hydraulic rod is contracted, and the bottom end of the sliding plate bin is positioned above the fine filter material chamber, so that the cleaned fine filter material falls into the fine filter material chamber.
A filter material materialization cleaner is arranged at the bottom of the coarse filter chamber to be cleaned, and the filter material materialization cleaner is one or a combination of a microwave generator, a micro-nano bubble generator or an ultrasonic device; and performing enhanced separation and removal on oil stains, organic matters and other pollutants on the coarse filter material and the coarse filter material in one or more of a microwave mode, a micro-nano bubble mode and an ultrasonic mode.
The advantage effect of this patent:
1. compared with the traditional filter, the oily wastewater filtering equipment for high salinity and high turbidity belongs to layered filtration in the true sense, so that the phenomenon of uneven mixed loading and cleaning of the traditional filter is improved.
2. According to different sizes and properties of the layered filter materials, a microwave, ultrasonic and micro-nano bubble physicochemical cleaning strengthening mode is arranged at the lower end of the coarse filter material chamber to be cleaned, so that the removal and separation efficiency of oil-containing pollutants, organic matters and other pollutants is greatly improved.
3. The layered filter materials can be cleaned in a crossed and non-stop manner, the circulating fluidity of the filter materials is always kept, the characteristic of small backwashing water amount is achieved, and the hardening problem in the high-salinity and high-salinity sewage filtering process is mainly solved.
4. Compared with the traditional water inlet and outlet mode of water inlet at the upper part and water outlet at the bottom part of the filter, the water inlet and outlet mode of water inlet and water outlet at the periphery of the filter adopts the middle water distributor, so that the reasonable design of the equipment size and the occupied area is facilitated under the condition of the same time and the same treatment capacity, and the application scene is wider.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the invention will be further described with reference to fig. 1 and the examples.
Examples
A filtering device for oily wastewater with high mineralization degree and high turbidity comprises a water distributor 2, a filtering tank body 3, an effluent collecting chamber 4, a filter material extracting device and a filter material cleaning chamber 8;
the effluent collecting chamber 4 is arranged on the side surface of the filtering tank body 3, the binding surface is provided with a plurality of water distribution holes and communicated, and the side surface of the effluent collecting chamber 4 is provided with a water outlet 5; the water distributor 2 is arranged in the middle of the inside of the filtering tank body 3; the filter material cleaning chamber 8 is arranged at the upper part of the filter tank body 3, and the bottom of the filter material cleaning chamber is provided with a clean filter material outlet 8-5; sewage enters a filtering tank body 3 from a water inlet pipe 1 above a water distributor 2, and is filtered by coarse filtering materials 3-1 and fine filtering materials of a coarse filtering material chamber 3-2 in the filtering tank body 3 respectively, and filtered effluent enters an effluent collecting chamber 4 through water distributing holes, and finally the effluent is discharged from a side water outlet pipe 5 of the effluent collecting chamber.
A coarse filter material chamber 3-3 to be cleaned and a fine filter material chamber 3-4 to be cleaned are also arranged in the filtering tank body 3; the coarse filter material chamber 3-1 and the fine filter material chamber 3-2 are separated from the coarse filter material chamber 3-3 to be cleaned and the fine filter material chamber 3-4 to be cleaned below by a support plate 9, a conical baffle 7 is arranged in the middle of the support plate 9, and a clearance groove is reserved between the support plate 9 and the conical baffle 7, so that the dirty coarse filter material and the sewage in the coarse filter material chamber 3-1 slowly slide down to the coarse filter material chamber 3-3 to be cleaned; the outer edge of the supporting plate 9 and the inner wall of the filtering tank body 3 are also provided with clearance grooves for the sewage-containing fine filtering material and sewage to flow to a fine filtering material cleaning chamber 3-4;
the filter material extraction device comprises a coarse filter material extraction device and a fine filter material extraction device; the coarse filter material extracting device is arranged in the filter tank body 3 and is communicated with a coarse filter material cleaning chamber 3-3 and a filter material cleaning chamber 8; the fine filter material extraction device is arranged outside the filter tank body 3 and is communicated with a fine filter material to-be-cleaned chamber 3-4 and a filter material cleaning chamber 8; the filter material cleaning chamber 8 is respectively fed with the filter material containing dirt and the sewage in the rough filter material cleaning chamber 3-3 and the fine filter material cleaning chamber 3-4 through a rough filter material extraction device and a fine filter material extraction device.
The coarse filter material extraction device comprises a No. 1 lift pump 10-1 arranged in a coarse filter material chamber to be cleaned 3-3 and is connected with a filter material cleaning chamber 8 through a No. 1 extraction pipe 10-2.
The fine filter material extraction device comprises a No. 2 extraction pipe 10-3 communicated with a fine filter material chamber 3-4 to be cleaned, and is connected with a filter material cleaning chamber 8 through a No. 2 lift pump 10-4 and a No. 3 extraction pipe 10-5.
The 3# extraction pipe 10-5 of the fine filter material extraction device is internally provided with a helical blade 10-6, and due to the helical guide of the helical blade 10-6, the 3# extraction pipe 10-5 contains a polluted filter material and sewage generates a centrifugal effect in the upward extraction and flowing process, so that the pollutant is separated from the filter material.
The 1# lift pump 10-1 and the 2# lift pump 10-4 are both pneumatic lift pumps and are connected with compressed gas, the compressed gas is respectively controlled by a pipeline and a valve to supply gas to the 1# lift pump 10-1 or the 2# lift pump 10-4, the gas flow direction is controlled, and layered cleaning is realized. The compressed gas can be selected according to the water quality and safety requirements of the working condition site, can be air or nitrogen and the like, and can also flush the dirt on the surface of the dirt-containing filter material.
The filter material cleaning chamber 8 comprises a filter material cleaning tank body 8-1, an inner ring baffle 8-2 is arranged in the filter material cleaning tank body, a fluid channel is arranged below the inner ring baffle 8-2 and the filter material cleaning tank body 8-1, and an exhaust port 8-3 is arranged above the space between the inner ring baffle 8-2 and the filter material cleaning tank body 8-1; the lower part of the filter material cleaning tank body 8-1 is provided with an inverted L-shaped waste water pipe 8-4, and the bottom is provided with a clean filter material outlet 8-5; the filter material cleaning tank body 8-1 is communicated with a No. 1 extraction pipe 10-2 and a No. 3 extraction pipe 10-5.
Dirty filter materials and sewage in the coarse filter material cleaning chamber 3-3 and the fine filter material cleaning chamber 3-4 respectively enter the filter material cleaning chamber 8 through the filter material extraction device, firstly are beaten on the inner ring baffle 8-2, part of the dirty materials on the surface of the dirty filter materials can be beaten off through impact, the dirt removing filter materials rapidly sink and accumulate to the bottom of the filter material cleaning tank body 8-1 under the action of gravity, are slowly discharged from the clean filter material outlet 8-5, enter the coarse filter material chamber 3-1 or the fine filter material chamber 3-2 of the filter tank body 3 again through the filter material sliding bin 11 below, and naturally part of the sewage returns to the filter tank body 3; the dirt materials which are removed from the dirt-containing filter materials are mixed in the sewage to form suspended matters, and then the water level in the filter material cleaning tank body 8-1 rises due to the blocking of the dirt-removing filter materials which sink and accumulate, and then the water is discharged from the L-shaped waste water pipe 8-4; and the gas of the filter material extraction device is exhausted from an exhaust port 8-3.
A filter material sliding bin 11 is arranged below a clean filter material outlet 8-5 at the bottom of the filter material cleaning chamber 8; the filter material sliding bin 11 is a telescopic sliding bin and comprises a sliding bin 11-1 and a hydraulic rod 11-2 which are hinged with the inner wall of the filter tank body 3, and the other end of the hydraulic rod 11-2 is connected with the bottom of the sliding bin 11-1. When compressed gas supplies gas to the coarse filter material extraction device, the coarse filter material extraction device works, a coarse filter material to-be-cleaned chamber 3-3 containing dirty filter materials and sewage is lifted to a filter material cleaning chamber 8, the filter material cleaning chamber 8 is in a coarse filter material cleaning state, a hydraulic rod is opened, the bottom end of a sliding plate bin 11-1 is positioned above the coarse filter material chamber 3-1, and the cleaned coarse filter materials can fall into the coarse filter material chamber 3-1 conveniently; when compressed gas supplies gas to the fine filter material extraction device, the fine filter material extraction device works to lift the dirty filter material and sewage in the fine filter material cleaning chamber 3-4 to the filter material cleaning chamber 8, the filter material cleaning chamber 8 is in a fine filter material cleaning state, the hydraulic rod 11-2 contracts, the bottom end of the sliding plate bin 11-1 is located above the fine filter material chamber 3-2, and the cleaned fine filter material can fall into the fine filter material chamber 3-2 conveniently.
A filter material materialization cleaner 12 is arranged at the bottom of the coarse filter material chamber to be cleaned 3-3, and the filter material materialization cleaner 12 is one or a combination of a microwave generator, a micro-nano bubble generator or an ultrasonic device; and performing enhanced separation and removal on oil stains, organic matters and other pollutants on the coarse filter material and the coarse filter material in one or more of a microwave mode, a micro-nano bubble mode and an ultrasonic mode.
The device is used for the treatment of oily sewage with certain hypersalinity, and the treatment effect is as follows:
as described above, the present invention is not limited in any way, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention without departing from the technical solution of the present invention.
Claims (8)
1. A filtering device for oily wastewater with high mineralization degree and high turbidity is characterized by comprising a water distributor, a filtering tank body, an effluent collecting chamber, a filter material extracting device and a filter material cleaning chamber;
the effluent collecting chamber is arranged on the side surface of the filtering tank body and is communicated with the filtering tank body, and the effluent collecting chamber is provided with an effluent outlet; the water distributor is arranged in the filtering tank body; the filter material cleaning chamber is arranged at the upper part of the filter tank body, and the bottom of the filter material cleaning chamber is provided with a clean filter material outlet;
a coarse filter material chamber, a fine filter material chamber, a coarse filter material chamber to be cleaned and a fine filter material chamber to be cleaned are arranged in the filtering tank body; the coarse filter material chamber and the fine filter material chamber are isolated from a coarse filter material chamber to be cleaned and a fine filter material chamber to be cleaned below through a supporting plate, a conical baffle plate is arranged in the middle of the supporting plate, a clearance groove is reserved between the conical baffle plate and the supporting plate, and a clearance groove is also arranged between the outer edge of the supporting plate and the inner wall of the filter tank body;
the filter material extraction device comprises a coarse filter material extraction device and a fine filter material extraction device; the coarse filter material extracting device is arranged in the filter tank body and is communicated with a coarse filter material cleaning chamber and a filter material cleaning chamber; the fine filter material extraction device is arranged outside the filter tank body and communicated with the fine filter material waiting cleaning chamber and the filter material cleaning chamber.
2. The oily wastewater filtering device for high salinity and high turbidity according to claim 1, wherein the filter material washing chamber comprises a filter material washing tank body, an inner ring baffle is arranged inside the filtering material washing tank body, a fluid passage is arranged below the inner ring baffle and the filter material washing tank body, and an exhaust port is arranged above the space between the inner ring baffle and the filter material washing tank body; the lower part of the filter material cleaning tank body is provided with an inverted L-shaped waste water pipe;
the filter material cleaning tank body is communicated with the coarse filter material extraction device and the fine filter material extraction device.
3. The oily wastewater filtering device for high salinity and high turbidity according to claim 1, wherein the coarse filtration material extracting means comprises a # 1 lift pump disposed in the coarse filtration material chamber to be cleaned and connected with the filtration material cleaning chamber through a # 1 extracting pipe.
4. The oily wastewater filtering device for high salinity and high turbidity according to claim 1, wherein the fine filter material extracting means comprises a # 2 extracting pipe communicated with the inside of the fine filter material chamber to be cleaned, and is connected with the filter material cleaning chamber through a # 2 lift pump and a # 3 extracting pipe.
5. The oily wastewater filtering device for high salinity and high turbidity according to claim 1, 3 or 4, wherein the filter material extracting device is connected with compressed gas.
6. The oily wastewater filtering equipment for high salinity and high turbidity according to claim 1, wherein a filter material sliding bin is arranged below a clean filter material outlet at the bottom of the filter material cleaning chamber; the smooth storehouse of filter material is the smooth storehouse of concertina type, and it includes respectively with the slide storehouse of filtering jar internal wall swing joint, hydraulic stem, the slide storehouse bottom is connected to the other end of hydraulic stem.
7. The oil-containing wastewater filtering equipment for high salinity and high turbidity according to claim 1, wherein a filter material materialization cleaner is arranged at the bottom of the coarse filter material chamber to be cleaned, and the filter material materialization cleaner is one or a combination of a microwave, a micro-nano bubble generator or an ultrasonic device.
8. The apparatus for filtering oily wastewater with high salinity and high turbidity according to claim 4, wherein the number 3 extraction pipe of the fine filter material extraction device is internally provided with a helical blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222538974.8U CN218106935U (en) | 2022-09-24 | 2022-09-24 | Oily wastewater filtering equipment for high salinity and high turbidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222538974.8U CN218106935U (en) | 2022-09-24 | 2022-09-24 | Oily wastewater filtering equipment for high salinity and high turbidity |
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| Publication Number | Publication Date |
|---|---|
| CN218106935U true CN218106935U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222538974.8U Active CN218106935U (en) | 2022-09-24 | 2022-09-24 | Oily wastewater filtering equipment for high salinity and high turbidity |
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| Country | Link |
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| CN (1) | CN218106935U (en) |
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- 2022-09-24 CN CN202222538974.8U patent/CN218106935U/en active Active
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