CN201253505Y - Gas-stripping type continuous sand filtering device - Google Patents
Gas-stripping type continuous sand filtering device Download PDFInfo
- Publication number
- CN201253505Y CN201253505Y CNU2008201525717U CN200820152571U CN201253505Y CN 201253505 Y CN201253505 Y CN 201253505Y CN U2008201525717 U CNU2008201525717 U CN U2008201525717U CN 200820152571 U CN200820152571 U CN 200820152571U CN 201253505 Y CN201253505 Y CN 201253505Y
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- sand
- pipe
- water
- density polyethylene
- high density
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Abstract
The utility model provides an air-lift continuous sand filtering device which comprises a casing, sand beds, a water supply pipe and a water outlet pipe, wherein the sand beds are filled in the casing from the upper half part to the bottom, the middle part of the sand beds is provided with the water supply pipe, and the outer side of the top end of the casing is provided with the water outlet pipe. The air-lift continuous sand filtering device is characterized in that one end of the water outlet pipe is extended to the outside of the sand beds and is connected with a sand washer, one end of a discharge pipe for sand washing water is fixed on the sand washer, and the other end of the discharge pipe for sand washing water is arranged outside the casing. The outer side of the water supply pipe is communicated with one end of a water inlet pipe, the other end of the water inlet pipe is arranged outside the casing, the other end of the water supply pipe is provided with a device for high density polyethylene water distribution and sand distribution, the middle of the water supply pipe and the device for high density polyethylene water distribution and sand distribution is provided with an air-lift pipe, the tail end of the air-lift pipe is arranged outside the device for high density polyethylene water distribution and sand distribution, the top end of the air-lift pipe is connected with the sand washer, the air-lift pipe is a dual layer sandwich pipe with the outer wall and the inner wall at the tail end sealed, and the inner wall is provided with at least one open pore. The utility model has the advantages of continuous operation, high running efficiency, little land occupation and being applicable to low pH water quality.
Description
Technical field
The utility model relates to the continuous sand filtering device of a kind of gas stripping type, is used in filtered wastewater, realizes the recycling of filter sand, belongs to the filter technical field.
Background technology
Sand filtering device is that suspended particulate and cotton-shaped object are filtered the device of removing in liquid.Conventional sand filtration equipment is owing to after having held back a certain amount of suspension, must carry out filter sand and clean promptly so-called filter sand backwash.Because this flushing is to carry out under the condition that stops to filter, it can have influence on the continuity of filtering operation and reduce operational efficiency, and the meeting of backwash simultaneously increases flushing device, improves energy consumption, has influence on the benefit of operation.
Summary of the invention
The purpose of this utility model provides a kind of continuous use, the operational efficiency height, and floor space is little, is applicable to the sand filtering device of low pH value condition of water quality.
In order to achieve the above object, the technical solution of the utility model has provided the continuous sand filtering device of a kind of gas stripping type, comprise housing, the first half in housing to bottom is filled with casting bed, middle part at casting bed is provided with feed pipe, be provided with outlet pipe in the outside, housing top, it is characterized in that, it is outer and connect sand-washing device that one end of feed pipe extends to casting bed, on sand-washing device, be fixed with an end of washed-out sand water discharge pipe, the other end of washed-out sand water discharge pipe is located at outside the housing, the outside at feed pipe is communicated with an end that is provided with water inlet pipe, the other end of water inlet pipe is located at outside the housing, is provided with high density polyethylene (HDPE) water distribution and cloth sand device at the other end of feed pipe, is provided with stripping tube in the middle of feed pipe and high density polyethylene (HDPE) water distribution and cloth sand device, the end of stripping tube is located at outside high density polyethylene (HDPE) water distribution and the cloth sand device, the top of stripping tube connects sand-washing device, and wherein, stripping tube is double-deck interlayer pipe, seal between outer wall that it is terminal and the inwall, and on inwall, be provided with at least one perforate.
Further, above described high density polyethylene (HDPE) water distribution and cloth sand device and the outside of described feed pipe be provided with the aeration distributor.
Suspension in the waste water that flows into by water inlet pipe or flock advanced holding back of filter sand in the casting bed, made water quality become clear, by the outlet pipe qualified discharge.Stripping tube is promoted to the filter sand of continuous-flow the sand-washing device of its upper side from the bottom in the bottom of equipment, clean in sand-washing device " labyrinth " by adjustable backwash water level, and the filter sand that washes down successively flows into casting bed, use repeatedly naturally by gravity.
The utility model has the advantages that: advantage: 1, can provide continuous filtration to handle, 2, be equipped with the aeration distributor and can be used for digestion process, 3, high density polyethylene (HDPE) water distribution and cloth sand device can be applied to low pH value condition of water quality occasion, 4, use high density polyethylene (HDPE) water distribution and cloth sand device to make injection well downhole flow regulator and cloth sand cover integrated, the convenient making and transportation solved the support problem of injection well downhole flow regulator.
Description of drawings
The structural representation of the continuous sand filtering device of a kind of gas stripping type that Fig. 1 provides for the utility model;
Fig. 2 is the plan structure figure of high density polyethylene (HDPE) water distribution and cloth sand device;
Fig. 3 is the partial enlarged drawing of stripping tube end.
The specific embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
As Fig. 1 and Figure 3 shows that the structural representation of the continuous sand filtering device of a kind of gas stripping type that the utility model provides, comprise water inlet pipe 1, feed pipe 2, casting bed 4, outlet pipe 5, stripping tube 8, washed-out sand water discharge pipe 9, sand-washing device 10, aeration distributor 13, housing 15 and high density polyethylene (HDPE) water distribution and cloth sand device 16.
Wherein, the first half in housing 15 to bottom is filled with casting bed 4, be provided with feed pipe 2 at the middle part of casting bed 4, be provided with outlet pipe 5 in the outside, housing 15 tops, it is characterized in that, one end of feed pipe 2 extends to outside the casting bed 4 and connects sand-washing device 10, on sand-washing device 10, be fixed with an end of washed-out sand water discharge pipe 9, the other end of washed-out sand water discharge pipe 9 is located at outside the housing 15, the outside at feed pipe 2 is communicated with an end that is provided with water inlet pipe 1, the other end of water inlet pipe 1 is located at outside the housing 15, the other end at feed pipe 2 is provided with high density polyethylene (HDPE) water distribution and cloth sand device 16, is provided with stripping tube 8 in the middle of feed pipe 2 and high density polyethylene (HDPE) water distribution and cloth sand device 16, and the end of stripping tube 8 is located at outside high density polyethylene (HDPE) water distribution and the cloth sand device 16, the top of stripping tube 8 connects sand-washing device 10
Wherein, stripping tube 8 is double-deck interlayer pipe, sealing between its terminal outer wall 20 and the inwall 19, and on inwall 19, be provided with 4 perforates 18.
Further, above described high density polyethylene (HDPE) water distribution and cloth sand device 16 and the outside of described feed pipe 2 be provided with aeration distributor 13.Described stripping tube 8 is double-deck interlayer pipe.On water inlet injection well downhole flow regulator 3, aeration distributor 13 is set, can be used for the sand filtration digestion process.
Be illustrated in figure 2 as the structure chart of high density polyethylene (HDPE) water distribution and cloth sand device, form by spider 17, injection well downhole flow regulator 3 and the cloth sand cover 12 of centre perforation.
Wherein, the circumferentially-spaced of the spider 17 of boring a hole in the centre is even must to be provided with 8 injection well downhole flow regulators 3, is provided with gripper shoe 14 on injection well downhole flow regulator 3, is provided with cloth sand cover 12 on injection well downhole flow regulator 3 and gripper shoe 14.
Further, the number of described injection well downhole flow regulator 3 is identical with the number of described aeration distributor 13.
Operation principle of the present utility model is: waste water enters the continuous sand filtering device of gas stripping type through water inlet 1, by concentricity pipe 2 UNICOMs that are flexible coupling, feed pipe 2 directly connects with injection well downhole flow regulator 3, injection well downhole flow regulator 3 is the uniform central dispense devices of design, flow into casting bed 4 after the water inlet uniform distribution, filtration by filter sand in the casting bed 4 forms sand leaching water 11, rises to the overflow weir on the continuous sand filtering device of gas stripping type top, by outlet pipe 5 overflow water outlets.Dirty filter sand 6 in the casting bed is by the runner control of cloth sand cover 12, quantitative wanders to the continuous sand filtering device of gas stripping type bottom, under the effect of stripping tube 8, the sand-washing device 10 that is promoted to the continuous sand filtering device of gas stripping type top is backwashed water (being washed-out sand water) 9 and cleans, become available filter sand 7 and from sand-washing device 10 " labyrinth ", fall after rise, use repeatedly continuously to casting bed 4.
It is to make according to the gravitational difference principle that the different density of the outer material of the pipe of material in the pipe of stripping tube 8 and stripping tube 8 forms that gas is put forward principle.Compressed air is in the top of stripping tube 8 is injected into gap between stripping tube 8 outer walls 20 and the inwall 19, and compressed air is carried dirty filter sand, water on gentle to sand-washing device 10 by perforate 18 and being cleaned.Simultaneously, the gas amount of carrying of dirty filter sand and the rate of climb can be regulated by the compressed-air actuated tolerance variation of injecting.
The formation of backwashing water 9 relies on the outlet pipe 5 at sand filtration top and the liquid level difference of sand-washing device 10.Because sand-washing device 10 liquid levels can be regulated, so the backwash water yield can be regulated.
Under low pH value condition of water quality, the internals material is a high density polyethylene (HDPE), and the rigidity of considering plastics is not as good as metal, the utility model is made as a whole by gripper shoe 14 injection well downhole flow regulator 3 and cloth sand cover 12, promptly attractive in appearance, convenient again processing has solved the requirement of internals material to rigidity simultaneously.
Claims (5)
1. continuous sand filtering device of gas stripping type, comprise housing (15), the first half to bottom in housing (15) is filled with the casting bed (4) of filter sand, be provided with feed pipe (2) at the middle part of casting bed (4), be provided with outlet pipe (5) in the outside, housing (15) top, it is characterized in that, one end of feed pipe (2) seals and extends to outside the casting bed (4) and connects sand-washing device (10), on sand-washing device (10), be fixed with an end of washed-out sand water discharge pipe (9), the other end of washed-out sand water discharge pipe (9) is located at outside the housing (15), the outside at feed pipe (2) is communicated with an end that is provided with water inlet pipe (1), the other end of water inlet pipe (1) is located at outside the housing (15), the other end at feed pipe (2) is provided with high density polyethylene (HDPE) water distribution and cloth sand device (16), in the middle of feed pipe (2) and high density polyethylene (HDPE) water distribution and cloth sand device (16), be provided with stripping tube (8), the end of stripping tube (8) is located at outside high density polyethylene (HDPE) water distribution and the cloth sand device (16), the top of stripping tube (8) connects sand-washing device (10)
Wherein, stripping tube (8) is double-deck interlayer pipe, sealing between its terminal outer wall (20) and the inwall (19), and on inwall (19), be provided with at least one perforate (18).
2. the continuous sand filtering device of a kind of gas stripping type as claimed in claim 1 is characterized in that, is provided with aeration distributor (13) in the outside of described high density polyethylene (HDPE) water distribution and cloth sand device (16) top and described feed pipe (2).
3. the continuous sand filtering device of a kind of gas stripping type as claimed in claim 1, it is characterized in that, described high density polyethylene (HDPE) water distribution and cloth sand device (16) are made up of spider (17), injection well downhole flow regulator (3) and the cloth sand cover (12) of centre perforation, wherein, the circumferentially-spaced of the spider (17) of boring a hole in the centre is even must to be provided with at least two injection well downhole flow regulators (3), on injection well downhole flow regulator (3), be provided with gripper shoe (14), be provided with cloth sand cover (12) on every side at injection well downhole flow regulator (3) and gripper shoe (14).
4. the continuous sand filtering device of a kind of gas stripping type as claimed in claim 3 is characterized in that, the number of described injection well downhole flow regulator (3) is identical with the number of described aeration distributor (13).
5. the continuous sand filtering device of a kind of gas stripping type as claimed in claim 1 is characterized in that, described stripping tube (8) is double-deck interlayer pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201525717U CN201253505Y (en) | 2008-09-01 | 2008-09-01 | Gas-stripping type continuous sand filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201525717U CN201253505Y (en) | 2008-09-01 | 2008-09-01 | Gas-stripping type continuous sand filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201253505Y true CN201253505Y (en) | 2009-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201525717U Expired - Lifetime CN201253505Y (en) | 2008-09-01 | 2008-09-01 | Gas-stripping type continuous sand filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201253505Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708387B (en) * | 2009-12-25 | 2012-08-29 | 南京中电联环保工程有限公司 | Method for dynamically backwashing dirt separator by using continuous flow |
| CN102895810A (en) * | 2012-10-14 | 2013-01-30 | 青岛小川环保设备有限公司 | Filter media loss-free continuous drift sand filter |
| CN103127753A (en) * | 2011-11-25 | 2013-06-05 | 上海达源环境科技工程有限公司 | Quick sand filter |
| CN104591451A (en) * | 2014-12-25 | 2015-05-06 | 江苏水智乐自动化设备有限公司 | Tap water purification system |
| CN105080188A (en) * | 2015-08-07 | 2015-11-25 | 湖南新九方科技有限公司 | Installation method for sewage treatment sand filter pool system |
| CN105771344A (en) * | 2016-04-28 | 2016-07-20 | 清勤水处理科技（上海）有限公司 | Novel water distributor and air-lift continuous sand filter device with same |
| CN109718580A (en) * | 2017-10-31 | 2019-05-07 | 帕克环保技术(上海)有限公司 | Sand filtering device |
| CN112791465A (en) * | 2021-04-07 | 2021-05-14 | 微资源(上海)生物技术有限公司 | Active sand filter |
-
2008
- 2008-09-01 CN CNU2008201525717U patent/CN201253505Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708387B (en) * | 2009-12-25 | 2012-08-29 | 南京中电联环保工程有限公司 | Method for dynamically backwashing dirt separator by using continuous flow |
| CN103127753A (en) * | 2011-11-25 | 2013-06-05 | 上海达源环境科技工程有限公司 | Quick sand filter |
| CN102895810A (en) * | 2012-10-14 | 2013-01-30 | 青岛小川环保设备有限公司 | Filter media loss-free continuous drift sand filter |
| CN102895810B (en) * | 2012-10-14 | 2015-04-15 | 青岛小川环保设备有限公司 | Filter media loss-free continuous drift sand filter |
| CN104591451A (en) * | 2014-12-25 | 2015-05-06 | 江苏水智乐自动化设备有限公司 | Tap water purification system |
| CN105080188A (en) * | 2015-08-07 | 2015-11-25 | 湖南新九方科技有限公司 | Installation method for sewage treatment sand filter pool system |
| CN105771344A (en) * | 2016-04-28 | 2016-07-20 | 清勤水处理科技（上海）有限公司 | Novel water distributor and air-lift continuous sand filter device with same |
| CN109718580A (en) * | 2017-10-31 | 2019-05-07 | 帕克环保技术(上海)有限公司 | Sand filtering device |
| CN112791465A (en) * | 2021-04-07 | 2021-05-14 | 微资源(上海)生物技术有限公司 | Active sand filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090610 |