CN108654155B - An activated sand filter - Google Patents

An activated sand filter Download PDF

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Publication number
CN108654155B
CN108654155B CN201810594213.XA CN201810594213A CN108654155B CN 108654155 B CN108654155 B CN 108654155B CN 201810594213 A CN201810594213 A CN 201810594213A CN 108654155 B CN108654155 B CN 108654155B
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Prior art keywords
sand
filter
active
assembly
cleaning device
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Active
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CN201810594213.XA
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CN108654155A (en
Inventor
宋应民
陈勇
张小青
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Zhongshan Environmental Protection Industrial Co ltd
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Zhongshan Environmental Protection Industrial Co ltd
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Priority to CN201810594213.XA priority Critical patent/CN108654155B/en
Publication of CN108654155A publication Critical patent/CN108654155A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

本发明涉及一种活性砂过滤器，其特征在于：包括由内而外依次设置的滤砂清洗装置(1)、内层砂滤组件(2)、外层砂滤组件(3)、外箱组件(4)，在内层砂滤组件(2)与外层砂滤组件(3)之间设有用于盛装过滤砂的过滤砂腔(5)，在外层砂滤组件(3)与外箱组件(4)之间设有用于盛装达标水的净水腔(6)，在滤砂清洗装置(1)上连接有用于将污水引入的进水管(7)，在外箱组件(4)上设有用于将净水腔(6)内的净水排出的出水管(8)，外层砂滤组件(3)沿着过滤砂腔(5)的外围侧壁设置，在外层砂滤组件(3)上设有多个供净水流出的过滤孔(31)，该活性砂过滤器占地面积小，成本低，资源得到充分利用。

The invention relates to an active sand filter, which is characterized in that it comprises a filter sand cleaning device (1), an inner sand filter assembly (2), an outer sand filter assembly (3), and an outer box assembly (4) which are arranged in sequence from the inside to the outside; a filter sand cavity (5) for containing filter sand is arranged between the inner sand filter assembly (2) and the outer sand filter assembly (3); a clean water cavity (6) for containing qualified water is arranged between the outer sand filter assembly (3) and the outer box assembly (4); an inlet pipe (7) for introducing sewage is connected to the filter sand cleaning device (1); a water outlet pipe (8) for discharging clean water in the clean water cavity (6) is arranged on the outer box assembly (4); the outer sand filter assembly (3) is arranged along the outer side wall of the filter sand cavity (5); and a plurality of filter holes (31) for clean water to flow out are arranged on the outer sand filter assembly (3); the active sand filter occupies a small area, has low cost, and fully utilizes resources.

Description

Active sand filter
[ Field of technology ]
The invention relates to an active sand filter.
[ Background Art ]
The active sand filtering is a continuous water treatment filtering technology, and belongs to fluidized bed filtering, and sand washing is performed while filtering. The active sand filtering technology has the advantages of low one-time investment cost, no need of a back flushing system, low operation and maintenance cost and the like, and plays an increasingly important role in municipal and industrial water and sewage advanced treatment processes.
The prior active sand filter has the advantages that filtered water reaching the standard flows out from the top end of the filter, the filtering efficiency is low, the occupied area is large, the cost is high, and the resources are not effectively utilized.
In view of the above, it is necessary to address the issues described above, and it is against this background that the present invention has been made.
[ Invention ]
The invention aims to solve the technical problems in the prior art, and provides the active sand filter which is provided with the unique outer sand filter component, and the treated purified water flows out from the periphery of the outer sand filter component, so that the efficiency of purifying sewage is greatly improved compared with the traditional technology, the occupied area is small, the cost is low, and the resources are fully utilized.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides an active sand filter, includes by interior and outer filter sand belt cleaning device 1 that sets gradually, inlayer sand filter unit 2, outer sand filter unit 3, outer case subassembly 4 inlayer sand filter unit 2 with be equipped with between the outer sand filter unit 3 and be used for splendid attire filter sand chamber 5 be equipped with between outer sand filter unit 3 with be equipped with between the outer case subassembly 4 and be used for splendid attire water purification chamber 6 up to standard filter sand belt cleaning device 1 is last to be connected with be used for introducing sewage inlet tube 7 be equipped with on the outer case subassembly 4 be used for with clean water exhaust outlet pipe 8 in the water purification chamber 6, outer sand filter unit 3 is followed filter sand chamber 5's peripheral lateral wall sets up be equipped with a plurality of confession water purification outflow filtration pore 31 on the outer sand filter unit 3.
As described above, the inner sand filter assembly 2 includes a plurality of sand blocking plates 21 with inverted V-shaped cross sections, a plurality of sand blocking plates 21 are stacked up and down, and a water flow channel 22 for sewage to flow into the sand filter cavity 5 is provided between the upper and lower sand blocking plates 21.
The distance L between the upper and lower sand-blocking pieces 21 as described above ranges in size from: 40mm +.L +.60 mm.
The top end separating device 9 is provided at the upper part of the sand filter cleaning device 1, the active sand backwash assembly 10 communicated with the sand filter cleaning device 1 is provided in the top end separating device 9, and a backwash drain pipe 101 for discharging suspended matters and other impurities is provided on the active sand backwash assembly 10.
A lifting device 11 for lifting the sand-water mixture at the lower part of the sand filtering cavity 5 upwards and promoting the circulating flow is arranged below the sand filtering and cleaning device 1.
The stirring device 12 is arranged on the top end separating device 9, and the stirring device 12 comprises a driving motor 121 arranged at the top end of the top end separating device 9 and a stirring shaft 122 extending into the cavity of the activated sand backwashing assembly 10 and the sand filtering and cleaning device 1.
A spiral connector 13 is provided between the activated sand backwash assembly 10 and the sand filter cleaning device 1 as described above, and a spiral pipe 131 through which impurities such as suspended substances flow into the activated sand backwash assembly 10 is provided in the spiral connector 13.
The lower part of the sand filtering chamber 5 is in an inverted cone shape as described above.
The beneficial effects of the invention are as follows:
1. The invention provides the active sand filter which is provided with the unique outer sand filtering component, the treated purified water flows out from the periphery of the outer sand filtering component, compared with the traditional technology, the efficiency of purifying the sewage is greatly improved, the occupied area is small, the cost is low, and the resources are fully utilized.
2. The invention provides an active sand filter which is provided with a unique inner sand filtering component, wherein the inner sand filtering component comprises a plurality of sand blocking sheets with V-shaped cross sections, the sand blocking sheets can ensure that sewage smoothly enters a sand filtering cavity for cleaning, and can prevent filter sand in the sand filtering cavity from flowing back into a sand filtering cleaning device and prevent the filter sand from blocking the sand filtering cleaning device.
[ Description of the drawings ]
FIG. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a cross-sectional view A-A in fig. 2.
Fig. 4 is an enlarged view of a portion B in fig. 3.
Fig. 5 is an enlarged view of a portion C in fig. 3.
[ Detailed description ] of the invention
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, an active sand filter comprises a sand filtering and cleaning device 1, an inner sand filtering component 2, an outer sand filtering component 3 and an outer box component 4 which are sequentially arranged from inside to outside, a sand filtering cavity 5 for containing filtered sand is arranged between the inner sand filtering component 2 and the outer sand filtering component 3, a water purifying cavity 6 for containing standard water is arranged between the outer sand filtering component 3 and the outer box component 4, a water inlet pipe 7 for introducing sewage is connected to the sand filtering and cleaning device 1, a water outlet pipe 8 for discharging the purified water in the water purifying cavity 6 is arranged on the outer box component 4, the outer sand filtering component 3 is arranged along the peripheral side wall of the sand filtering cavity 5, a plurality of filtering holes 31 for the purified water to flow out are formed in the outer sand filtering component 3, and the active sand filter is provided with a unique outer sand filtering component, the purified water after being treated flows out of the periphery of the outer sand filtering component, thus the efficiency of the sewage is greatly improved, the occupied area is small, and the cost is low, and the full utilization is achieved.
As shown in fig. 1, 3 and 4, in this embodiment, the inner sand filter assembly 2 includes a plurality of sand blocking plates 21 with inverted V-shaped cross sections, the sand blocking plates 21 are stacked up and down, and a water flow channel 22 for sewage to flow into the sand filtering cavity 5 is provided between the upper and lower sand blocking plates 21.
As shown in fig. 1, 3, and 4, in the present embodiment, the distance L between the upper and lower sand-blocking pieces 21 ranges from: the sand baffle can ensure that sewage smoothly enters the sand filtering cavity for cleaning, and can prevent the sand filtering in the sand filtering cavity from flowing back into the sand filtering cleaning device and the sand filtering from blocking the sand filtering cleaning device, on the one hand, the sand baffle is 40mm less than or equal to L less than or equal to 60mm, and is preferably 50 mm.
As shown in fig. 1 and 3, in the present embodiment, a top end separator 9 is provided at the upper part of the sand filter cleaning device 1, an activated sand backwash assembly 10 communicating with the sand filter cleaning device 1 is provided in the top end separator 9, and a backwash drain pipe 101 for discharging impurities such as suspended solids is provided in the activated sand backwash assembly 10.
As shown in fig. 1 and 3, in the present embodiment, a lifting device 11 for lifting up the sand-water mixture at the lower part of the sand filtering chamber 5 and promoting the circulation flow is provided below the sand filtering and cleaning device 1.
As shown in fig. 1 and 3, in the present embodiment, the stirring device 12 is provided on the top end separating device 9, the stirring device 12 includes a driving motor 121 provided on the top end of the top end separating device 9, and a stirring shaft 122 extending into the cavity of the activated sand backwash assembly 10 and the sand filter cleaning device 1, and the stirring device 12 can prevent the filter sand from blocking the sand filter cleaning device 1 and prevent impurities such as suspended matters from blocking the activated sand backwash assembly 10.
As shown in fig. 1,3 and 5, in the present embodiment, a spiral connector 13 is provided between the activated sand backwash assembly 10 and the sand filter cleaning device 1, a spiral pipe 131 for allowing impurities such as suspended matters to flow into the activated sand backwash assembly 10 is provided in the spiral connector 13, and the spiral pipe 131 facilitates the impurities such as suspended matters to flow into the activated sand backwash assembly 10, and prevents the filtered sand from entering the activated sand backwash assembly 10.
As shown in fig. 1 and 3, in this embodiment, the lower portion of the sand filtering chamber 5 is in an inverted cone shape, so that the filter sand is convenient to gather and circulate in the lower portion of the sand filtering chamber 5, and the purification efficiency is improved.
The active sand filter is based on the countercurrent principle, raw water to be treated enters the filter through a water inlet pipe and a water distributor positioned at the bottom of the filter, water flows countercurrent from bottom to top through a filter bed, filtered liquid after filtration is gathered at the top of the filter, and flows out through an overflow port. The active sand filtering system is one high efficiency filtering process integrating coagulation, clarification and filtering and consists of several active sand filter units. It does not need to stop the machine for back flushing; the single-stage filter material is adopted, no grading is needed, and the problems of uneven hydraulic distribution, primary filtrate and the like are avoided; the back flushing water pump and an electric and pneumatic valve for stopping and switching are not needed; no coagulation and clarification tank is needed, and no mechanical equipment for coagulation and clarification is needed. Thus, the active sand filtration system occupies a more compact area and is more economical to operate. Raw water enters the filter through the water inlet pipe, is uniformly distributed by the water distributor, and then flows upwards to the reverse flow filter material layer and is discharged. In the process, raw water is filtered, and the pollutant content in the water is reduced; meanwhile, the content of pollutants in the quartz sand filter material is increased, and the pollutant content of the lower filter material layer is higher than that of the upper filter material layer. And an air lift pump positioned in the center of the filter lifts quartz sand filter materials at the bottom layer to a sand washer at the top of the filter for cleaning under the action of an air compressor. The sand grains are cleaned and returned to the filter bed, and the pollutants generated by the cleaning are discharged. Because the quartz sand filter material is in a top-down motion state in the filter and plays a role in stirring raw water, stirring flocculation can be completed in the filter. The filter material in the filter is clean and timely, and can bear higher concentration of pollutants entering water. The special internal structure and the self characteristics of the active sand filter ensure that coagulation, clarification and filtration are all completed in the same tank body. The active sand filtering system consists of a concrete pool with a corresponding structure, a conical sand filtering guide device, an internal filtering unit, a water inlet pipeline, a filtrate water outlet pipeline, a flushing water outlet pipe, elastic connection between the internal filtering unit and the corresponding pipeline, an air compressor, a control system and the like. The internal filtering unit comprises a water inlet pipe, a water outlet pipe, a water flow distributor, a sand washing device, a flushing water outlet pipe, an air lift pump sleeve and the like. The water inlet and outlet pipe and the flushing water outlet pipe are positioned at the upper part of the filtering unit. The polluted filter material at the bottom of the filter is lifted to the sand washer at the top of the filter through the air lift pump, pollutants are separated from active sand through the turbulent flow effect, the impurities are discharged through the cleaning water outlet, and the clean sand returns to the sand bed by utilizing dead weight so as to realize continuous filtration.

Claims (5)

1.一种活性砂过滤器，其特征在于：包括由内而外依次设置的滤砂清洗装置(1)、内层砂滤组件(2)、外层砂滤组件(3)、外箱组件(4)，在所述内层砂滤组件(2)与所述外层砂滤组件(3)之间设有用于盛装过滤砂的过滤砂腔(5)，在所述外层砂滤组件(3)与所述外箱组件(4)之间设有用于盛装达标水的净水腔(6)，在所述滤砂清洗装置(1)上连接有用于将污水引入的进水管(7)，在所述外箱组件(4)上设有用于将所述净水腔(6)内的净水排出的出水管(8)，所述外层砂滤组件(3)沿着所述过滤砂腔(5)的外围侧壁设置，在所述外层砂滤组件(3)上设有多个供净水流出的过滤孔(31)；所述内层砂滤组件(2)包含多个截面为倒扣V字型的挡砂片(21)，多个所述挡砂片(21)上下层叠设置，上下两个所述挡砂片(21)之间具有供污水通过流入所述过滤砂腔(5)的水流通道(22)，上下两个所述挡砂片(21)之间的距离L的尺寸范围为：40mm≦L≦60mm；所述过滤砂腔(5)的下部为倒锥形。1. An active sand filter, characterized in that it comprises a filter sand cleaning device (1), an inner sand filter assembly (2), an outer sand filter assembly (3), and an outer box assembly (4) which are arranged in sequence from the inside to the outside, a filter sand chamber (5) for containing filter sand is provided between the inner sand filter assembly (2) and the outer sand filter assembly (3), a clean water chamber (6) for containing qualified water is provided between the outer sand filter assembly (3) and the outer box assembly (4), an inlet pipe (7) for introducing sewage is connected to the filter sand cleaning device (1), and an outlet pipe (8) for discharging clean water in the clean water chamber (6) is provided on the outer box assembly (4). A water pipe (8), wherein the outer sand filter assembly (3) is arranged along the outer side wall of the filter sand cavity (5), and the outer sand filter assembly (3) is provided with a plurality of filter holes (31) for clean water to flow out; the inner sand filter assembly (2) comprises a plurality of sand retaining plates (21) with an inverted V-shaped cross section, the plurality of sand retaining plates (21) are stacked up and down, and a water flow channel (22) is provided between the upper and lower sand retaining plates (21) for sewage to flow into the filter sand cavity (5), and the size range of the distance L between the upper and lower sand retaining plates (21) is: 40 mm ≤ L ≤ 60 mm; the lower part of the filter sand cavity (5) is an inverted cone. 2.根据权利要求1所述的活性砂过滤器，其特征在于：在所述滤砂清洗装置(1)上部设有顶端分离装置(9)，在所述顶端分离装置(9)内设有与所述滤砂清洗装置(1)连通的活性砂反洗组件(10)，在所述活性砂反洗组件(10)上设有用于将悬浮物杂质排出的反冲洗排水管道(101)。2. The active sand filter according to claim 1 is characterized in that: a top separation device (9) is provided on the upper part of the filter sand cleaning device (1), an active sand backwashing component (10) connected to the filter sand cleaning device (1) is provided in the top separation device (9), and a backwashing drainage pipe (101) for discharging suspended impurities is provided on the active sand backwashing component (10). 3.根据权利要求2所述的活性砂过滤器，其特征在于：在所述滤砂清洗装置(1)下方设有用于将所述过滤砂腔(5)下部砂水混合物向上提升、促进循环流动的提升装置(11)。3. The active sand filter according to claim 2 is characterized in that a lifting device (11) is provided below the filter sand cleaning device (1) for lifting the sand-water mixture in the lower part of the filter sand chamber (5) upward to promote circulation flow. 4.根据权利要求2所述的活性砂过滤器，其特征在于：在所述顶端分离装置(9)上设有搅拌装置(12)，所述搅拌装置(12)包括设在所述顶端分离装置(9)顶端的驱动电机(121)和伸入所述活性砂反洗组件(10)及所述滤砂清洗装置(1)腔体内的搅拌轴(122)。4. The active sand filter according to claim 2 is characterized in that: a stirring device (12) is provided on the top separation device (9), and the stirring device (12) includes a driving motor (121) arranged at the top of the top separation device (9) and a stirring shaft (122) extending into the cavity of the active sand backwashing component (10) and the filter sand cleaning device (1). 5.根据权利要求4所述的活性砂过滤器，其特征在于：在所述活性砂反洗组件(10)与所述滤砂清洗装置(1)之间设有螺旋状连接器(13)，在所述螺旋状连接器(13)内设有供悬浮物杂质流入所述活性砂反洗组件(10)内的螺旋状管道(131)。5. The active sand filter according to claim 4 is characterized in that a spiral connector (13) is provided between the active sand backwash component (10) and the filter sand cleaning device (1), and a spiral pipe (131) is provided in the spiral connector (13) for suspended impurities to flow into the active sand backwash component (10).
CN201810594213.XA 2018-06-11 2018-06-11 An activated sand filter Active CN108654155B (en)

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Publication number Priority date Publication date Assignee Title
CN111991857A (en) * 2020-08-03 2020-11-27 优德太湖水务（苏州）有限公司 Non-blocking sand filtering system
CN112696400B (en) * 2021-02-07 2023-07-04 山东安瑞格精密机械有限公司 Hydraulic workstation with air filter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1164433A (en) * 1996-05-02 1997-11-12 张日养 Closed horizontal flow type automatic cleaning filter layer filter and filtering method thereof
CN202015528U (en) * 2011-03-28 2011-10-26 广西博世科环保科技股份有限公司 Reverse flow continuous sand filter
CN204815831U (en) * 2015-07-08 2015-12-02 云南海诚环保科技有限公司 Continuous sand filter with high -efficient cleaning function of filter sand
CN208541845U (en) * 2018-06-11 2019-02-26 中山市环保产业有限公司 It is a kind of for filtering the active sand filter of suspended matter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000218104A (en) * 1999-02-01 2000-08-08 Japan Organo Co Ltd Continuous sand filter
CN103463843B (en) * 2013-10-14 2015-09-16 李岩 Continuous filtration system
CN204543680U (en) * 2015-01-26 2015-08-12 上海奥德水处理科技有限公司 A kind of have sand device and the continuous quicksand filter that sand grains is uniformly distributed function
CN104984572A (en) * 2015-07-13 2015-10-21 江苏德立环保工程有限公司 Efficient active flowing bed purifier
CN106621493A (en) * 2016-12-06 2017-05-10 欧盛腾水处理技术（杭州）有限公司 Horizontal flow continuous sand filtration equipment and water treatment process thereof
CN207253829U (en) * 2017-09-30 2018-04-20 绿源(北京)环保设备股份有限公司 Active sand filter plant and sewage filter system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1164433A (en) * 1996-05-02 1997-11-12 张日养 Closed horizontal flow type automatic cleaning filter layer filter and filtering method thereof
CN202015528U (en) * 2011-03-28 2011-10-26 广西博世科环保科技股份有限公司 Reverse flow continuous sand filter
CN204815831U (en) * 2015-07-08 2015-12-02 云南海诚环保科技有限公司 Continuous sand filter with high -efficient cleaning function of filter sand
CN208541845U (en) * 2018-06-11 2019-02-26 中山市环保产业有限公司 It is a kind of for filtering the active sand filter of suspended matter

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