CN211896301U - Fixed bed active carbon adsorption device - Google Patents
Fixed bed active carbon adsorption device Download PDFInfo
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- CN211896301U CN211896301U CN201921478948.2U CN201921478948U CN211896301U CN 211896301 U CN211896301 U CN 211896301U CN 201921478948 U CN201921478948 U CN 201921478948U CN 211896301 U CN211896301 U CN 211896301U
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Abstract
A fixed bed active carbon adsorption device, two-stage adsorption towers AB connected in series are communicated with a rotary disc filter and a water production pool; the bottom carbon discharge port of the adsorption tower is connected with the feed inlet of a hydraulic ejector, and the outlet of the hydraulic ejector is connected with a triangular screen filter; the water production pool is connected with a backwashing water pump and then connected with a water inlet of the underwater ejector and a backwashing water inlet of the adsorption tower; the backwashing water port of the adsorption tower, the backwashing water drainage of the rotary disc filter tank and the filtrate of the triangular screen filter are connected with a backwashing water collecting tank through pipelines. The water flows through two stages of adsorption towers connected in series from top to bottom under pressure, after passing through a rotary disc filter, the whole tank of one adsorption tower is sequentially filled with activated carbon, and the saturated carbon enters a triangular screen filter through a carbon discharge port through a hydraulic ejector to complete carbon-water separation. The device can fully utilize the adsorption capacity of the active carbon and effectively treat carbon powder or suspended matters carried by the incoming water in the produced water.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, a coking and petrochemical industry organic waste water that is applicable to low concentration, difficult degradability carries out advanced treatment is related to reach the fixed bed active carbon adsorption device of waste water retrieval and utilization technical requirement.
Background
The activated carbon adsorption is one of the methods for advanced wastewater treatment, and can remove pollutants which are difficult to remove by a common biochemical treatment unit and a physical and chemical treatment unit. The adsorbate has wide range, and can deodorize, decolorize, remove trace elements, and adsorb various organic substances. The activated carbon adsorption is used for large-scale advanced wastewater treatment, and not only are engineering measures such as water distribution, backwashing and the like of an adsorption system complicated; engineering measures of links such as conveying and dewatering of saturated carbon are also needed. This limits the application of the activated carbon adsorption process to large-scale advanced treatment of industrial wastewater. On the other hand, the carbon powder carried by the activated carbon and the carbon powder generated by collision in the operation process need to be removed so as to meet the water quality requirement of the water produced by the adsorption device.
Disclosure of Invention
In order to overcome the technical insufficiency, the utility model provides a can automatic charcoal row charcoal, have the backwash function, the high and effective processing produces aquatic powdered carbon or the suspended solid that comes water smugglies secretly, the thorough solid bed active carbon adsorption equipment of saturated active carbon dehydration of active carbon utilization ratio.
In order to realize the purpose, the utility model discloses a technical scheme is:
a fixed bed activated carbon adsorption device comprises an adsorption tower A, an adsorption tower B, a rotary disc filter, a triangular screen filter, a backwashing water collection pool, a water production pool, a backwashing water pump and a hydraulic ejector, wherein the two stages of adsorption tower A and the adsorption tower B which are connected in series are communicated with the rotary disc filter and the water production pool through pipelines, a carbon discharge port at the bottoms of the adsorption tower A and the adsorption tower B is connected with a feed port of the hydraulic ejector, and an outlet of the hydraulic ejector is connected with the triangular screen filter; the backwashing water outlet at the upper part of the side wall of the adsorption tower A and the adsorption tower B, the backwashing water outlet of the rotary disc filter and the triangular screen filter water outlet are connected with a backwashing water collecting tank through pipelines, the water generating tank is connected with the inlet of a backwashing water pump, and the outlet of the backwashing water pump is connected with the backwashing water inlet of the adsorption tower A, B and the water inlet end of the hydraulic ejector.
The connection parts of the adsorption tower A, the adsorption tower B, the rotary disc filter, the triangular screen filter, the backwashing water collecting tank, the water producing tank, the backwashing water pump and the hydraulic ejector are provided with process cut-off valves, and all the valves are not listed in the article.
The adsorption tower A and the adsorption tower B are of a cylindrical structure with a conical bottom, a carbon supplementing port and a feed port are machined on a tower top cover, a cross-shaped screen cloth water distributor extending into the tower body is arranged at the feed port, a backwashing water inlet is arranged at the upper part of the side wall, 3-8 water production branch ports are formed in the side wall of the middle part of a conical section at the bottom of the tower body along the cross section of the tower body, the water production branch ports are evenly distributed on the same circumference, and each water production port is communicated with a water production main pipe through a water distribution ring pipe; the bottom of the tower body conical section is provided with a waste carbon outlet, a carbon discharge port is communicated with a hydraulic ejector, and a filter screen with the precision of 250um is arranged in a backwashing water outlet, a backwashing water inlet and a water production port tower.
The two-stage adsorption tower A and the adsorption tower B which are connected in series have the same structure, the discharge hole of the front tower is communicated with the feed hole of the rear tower, and the two towers can be mutually arranged in the front and the back.
The water inlet end of the hydraulic ejector is connected with a backwashing water pump, and water flow drives saturated carbon to enter the triangular screen filter.
The utility model has the advantages that:
1. the two-stage series active carbon adsorption tower can improve the utilization rate of the active carbon to more than 90 percent;
1. the SS of the produced water treated by the rotary disc filter is less than 1mg/L, and the grain size is less than 10 mu m;
2. the water content of the saturated activated carbon is less than 40 percent after the treatment of the triangular screen filter dehydrator;
3. the operation filtering speed of the serially connected activated carbon adsorption towers is controlled to be about 10m/h, and the operation filtering speed is specifically determined according to the continuous or discontinuous operation of the activated carbon adsorption capacity and the treatment device.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein, 1 is an adsorption tower A; 2 is an adsorption tower B, 3 is a rotary disc filter, 4 is a triangular screen filter, 5 is a backwashing water collecting tank, 6 is a water producing tank, 7 is a backwashing water pump, and 8 is a hydraulic ejector.
Detailed Description
The present invention will be further described with reference to the accompanying drawings;
as shown in figure 1 of the drawings, in which,
a fixed bed activated carbon adsorption device comprises an adsorption tower A1, an adsorption tower B2, a rotary disc filter 3, a triangular screen filter 4, a backwashing water collecting tank 5, a water producing tank 6, a backwashing water pump 7 and a hydraulic ejector 8, wherein the two-stage adsorption tower A1 and the adsorption tower B2 which are connected in series are communicated with the rotary disc filter and the water producing tank through pipelines, a carbon discharge port at the bottom of the adsorption tower A1 and the bottom of the adsorption tower B2 is connected with a feed port of the hydraulic ejector 8, and an outlet of the hydraulic ejector 8 is connected with the triangular screen filter 4; the backwashing water outlet at the upper part of the side wall of the adsorption tower A1 and the adsorption tower B2, the backwashing water outlet of the rotary disc filter 3 and the water outlet of the triangular screen filter 4 are connected with a backwashing water collecting tank 5 through pipelines, the water producing tank 6 is connected with the inlet 7 of a backwashing water pump, and the outlet 7 of the backwashing water pump is connected with the backwashing water inlet of the adsorption towers A1 and B2 and the water inlet end of a hydraulic ejector 8;
the connection parts of the adsorption tower A1, the adsorption tower B2, the rotary disc filter 3, the triangular screen filter 4, the backwashing water collecting tank 5, the water producing tank 6, the backwashing water pump 7 and the hydraulic ejector 8 are provided with process cut-off valves, and all the valves are not listed in the specification;
the adsorption tower A7 and the adsorption tower B8 are of a cylinder structure with a conical bottom, a carbon supplementing opening, a feed opening and a cross-shaped screen water distributor extending into the tower body are machined on a tower top cover, a backwashing water inlet is formed in the upper portion of the side wall, 3-8 water production branch openings are formed in the side wall of the middle of a conical section at the bottom of the tower body along the cross section of the tower body, the water production branch openings are evenly distributed on the same circumference, and each water production opening is communicated with a water production main pipe through a water distribution ring pipe; a waste carbon outlet is formed in the bottom of the tower body conical section, a carbon discharge port is communicated with the hydraulic ejector 8, and a filter screen with the precision of 250um is installed in the backwashing water outlet, the backwashing water inlet and the water production port tower;
the two-stage adsorption tower A1 connected in series has the same structure as the adsorption tower B2, the discharge port of the front tower is communicated with the feed port of the rear tower, and the two towers can be mutually arranged in front and back;
the water inlet end of the hydraulic ejector 8 is connected with a backwashing water pump 7, and water flow drives saturated carbon to enter the triangular screen filter 4;
the rotary disc filter 3 is an industrial general device and is provided with a rotary driving device, a filter cloth rotary disc, a central pipe, a water inlet tank, a box body and a negative pressure reverse suction pump, sewage firstly enters the filter cloth filter tank and passes through the filter cloth under the action of gravity, and filtered water enters the filter disc and flows out of the central pipe. On-line backwashing is carried out through negative pressure reverse suction, and the filter cloth is cleaned along with the slow rotation of the filter disc. Naturally settling particles in the inlet water to the bottom of the hopper-shaped tank, and automatically flowing into a backwashing water collecting tank 5;
the active carbon dehydrator is preferably characterized in that the triangular screen microfilter 4 consists of a transmission device, an overflow weir water distributor and a washing water device, wherein the incoming water enters the overflow weir water distributor and is distributed on a filter drum filter screen rotating in the opposite direction, saturated active carbon is intercepted and separated, and the saturated active carbon is discharged from the other end of the filter drum and is packaged. Filtrate flows away from the water tank, and the filter cartridge is externally matched with a washing water pipe and can be sprayed in a fan shape to wash and dredge the filter screen, so that the filter screen is ensured to keep good filtering capacity all the time;
the backwashing water of the adsorption towers 1 and 2, the backwashing water of the rotary disc filter 3 and the drainage water of the triangular screen filter 4 are all collected to a backwashing water collecting tank 5 through a pipeline and discharged outside.
The operating principle of the pulsating bed active carbon adsorption device of the embodiment is as follows:
when the two-stage adsorption tower operates, the high-concentration COD is fully utilized, and the adsorption rate is high; the low-concentration COD has small adsorption rate, and only the saturated activated carbon of the front tower is replaced after the front tower penetrates through the low-concentration COD; the unsaturated rear tower is changed into a front tower, and the operation is continued until the saturation. Therefore, the newly loaded carbon is always subjected to secondary adsorption, and the COD of the effluent can be ensured to meet the high standard all the time;
the adsorption tower is provided with backwashing, and after new carbon is filled, the carbon powder carried by the activated carbon is removed by backwashing from the bottom, and meanwhile, the condition that the water distribution is uneven due to the fact that bubbles appear on the activated carbon column is avoided. If the water yield of the adsorption tower is reduced due to high content of suspended matters in the water during the operation, backwashing can be performed on the activated carbon through the middle backwashing port, so that water is saved;
carbon supplement by activated carbon: the new charcoal ton bag is directly added through a charcoal supplementing port;
packing activated carbon: when one tower needs to discharge carbon, the whole tower is filled with active carbon, the backwashing water pump drives saturated carbon to be sucked into the hydraulic ejector, and then the saturated carbon enters the triangular screen filter along with water flow, and the saturated carbon is packaged after dehydration.
The utility model discloses the adsorption tower group number can be increased and decreased according to the processing water yield size of reality, with the parallelly connected installation of multiunit adsorption tower, the connected mode of all the other pipelines is the same with foretell embodiment, the distribution of the water inlet of every adsorption tower and delivery port in addition can adjust according to the actual application condition, all belong to the utility model discloses a design.
Claims (5)
1. A fixed bed activated carbon adsorption device comprises an adsorption tower A (1), an adsorption tower B (2), a rotary disc filter (3), a triangular screen filter (4), a backwashing water collecting tank (5), a water producing tank (6), a backwashing water pump (7) and a hydraulic ejector (8), and is characterized in that the two stages of adsorption towers A (1) and the adsorption tower B (2) which are connected in series are communicated with the rotary disc filter (3) and the water producing tank (6) through pipelines, a carbon discharge port at the bottoms of the adsorption tower A (1) and the adsorption tower B (2) is connected with a feed port of the hydraulic ejector (8), and an outlet of the hydraulic ejector (8) is connected with the triangular screen filter (4); the backwashing water outlet on the upper parts of the side walls of the adsorption tower A (1) and the adsorption tower B (2), the backwashing water discharge port of the rotary disc filter (3) and the water outlet of the triangular screen filter (4) are connected with a backwashing water collecting tank (5) through pipelines, the water production tank (6) is connected with the inlet of a backwashing water pump (7), and the outlet of the backwashing water pump (7) is connected with the backwashing water inlet of the adsorption tower A (1), the adsorption tower B (2) and the water inlet end of the hydraulic ejector (8).
2. The fixed bed activated carbon adsorption device of claim 1, wherein the joints of the adsorption tower A (1), the adsorption tower B (2), the rotary disc filter (3), the triangular screen filter (4), the backwash water collecting tank (5), the water producing tank (6), the backwash water pump (7) and the hydraulic ejector (8) are provided with process cut-off valves.
3. The fixed bed activated carbon adsorption device of claim 1, wherein the adsorption column a (1) and the adsorption column B (2) have a cylindrical structure with a conical bottom, the top cover of the column is provided with a carbon supplementing port and a feed port, the feed port is provided with a cross-shaped screen water distributor extending into the column body, the upper part of the side wall is provided with a backwashing water inlet, the side wall of the middle part of the conical section at the bottom of the column body is provided with 3-8 water producing branch ports along the cross section of the column body, the water producing branch ports are evenly distributed on the same circumference, and each water producing port is communicated with the water producing main pipe through a water distribution ring pipe; the bottom of the tower body conical section is provided with a waste carbon outlet, a carbon discharge port is communicated with a hydraulic ejector, and a filter screen with the precision of 250um is arranged in a backwashing water outlet, a backwashing water inlet and a water production port tower.
4. The fixed bed activated carbon adsorption unit of claim 1, wherein the two adsorption columns a (1) and B (2) are identical in structure, and the discharge port of the front column is communicated with the feed port of the rear column, and the two columns are arranged in tandem.
5. The fixed bed activated carbon adsorption device of claim 1, wherein the water inlet end of the hydraulic ejector (8) is connected with a backwashing water pump (7), and water flow drives saturated carbon to enter the triangular screen filter (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921478948.2U CN211896301U (en) | 2019-09-06 | 2019-09-06 | Fixed bed active carbon adsorption device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921478948.2U CN211896301U (en) | 2019-09-06 | 2019-09-06 | Fixed bed active carbon adsorption device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699800A (en) * | 2022-03-23 | 2022-07-05 | 国家能源集团新疆能源有限责任公司 | Method for purifying Si69 stock solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699800A (en) * | 2022-03-23 | 2022-07-05 | 国家能源集团新疆能源有限责任公司 | Method for purifying Si69 stock solution |
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Address after: No. 61, Xiyan Road, Xi'an City, Shaanxi Province 710075 Patentee after: Shaanxi Chemical Research Institute Co.,Ltd. Address before: No. 61, Xiyan Road, Xi'an City, Shaanxi Province 710075 Patentee before: SHAANXI RESEARCH DESIGN INSTITUTE OF PETROLEUM CHEMICAL INDUSTRY |
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