CN114570092A - Auxiliary device and method for filtering sundries for urban sewage treatment - Google Patents
Auxiliary device and method for filtering sundries for urban sewage treatment Download PDFInfo
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- CN114570092A CN114570092A CN202210348608.8A CN202210348608A CN114570092A CN 114570092 A CN114570092 A CN 114570092A CN 202210348608 A CN202210348608 A CN 202210348608A CN 114570092 A CN114570092 A CN 114570092A
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- 239000010865 sewage Substances 0.000 title claims abstract description 77
- 238000001914 filtration Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 241000220317 Rosa Species 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 241000883990 Flabellum Species 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
- B01D33/41—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection
- B01D33/42—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to the technical field of urban sewage treatment, and particularly relates to an auxiliary device and a method for filtering sundries for urban sewage treatment, wherein the device comprises a vertical filter box, a primary filter mechanism, a secondary filter mechanism and a tertiary filter mechanism: the vertical filter box is provided with a sewage inlet and a sewage outlet, and is provided with a cleaning pipe and a three-stage scraper component; the primary filtering mechanism consists of a primary filter cylinder, a primary rotary driving component, a primary rotary supporting component and a primary scraper component; the secondary filtering mechanism consists of a secondary filter cylinder, a secondary rotary driving component, a secondary rotary supporting component and a secondary scraper component; the tertiary filter mechanism comprises tertiary cartridge filter, tertiary rotary drive subassembly and tertiary rotation support subassembly. The outer-layer filtering mechanism can intercept large-volume sundries, the middle-layer filtering mechanism can intercept small-volume sundries, and the middle-layer filtering mechanism can beat the sundries by using the scraper component, so that the primary precision of the sundries entering the primary filter cylinder is achieved, and the hidden danger of blockage is eliminated.
Description
Technical Field
The invention belongs to the technical field of urban sewage treatment, and particularly relates to an auxiliary device and method for filtering sundries for urban sewage treatment.
Background
As is well known, with the development of economic society, the pressure of shortage of urban water resources is increasing, people are more and more aware that social circulation of water beyond the bearable range of natural circulation of water is the root cause of pollution, and in order to reduce environmental pollution and alleviate the pressure of shortage of water resources, it is key to improve the utilization efficiency of water and enhance the recycling of sewage, and the sundries filtering auxiliary device for urban sewage treatment is a device for improving the sewage purification efficiency of sewage treatment equipment in the process of purifying urban sewage by sewage treatment equipment, and is widely used in the field of sewage treatment. Current sewage treatment may face a large amount of bulky debris at preliminary sewage treatment in-process, brings the trouble for people's clearance, and needs artifical clearance, great waste time.
To this end, chinese patent publication No. CN107335272B discloses a sewage impurity filtering device, which comprises a supporting leg, a filtering box connected to the upper end of the supporting leg, a filtering net scraping device connected to the front of the filtering box, a water inlet device connected to the rear of the filtering box, and an elastic press block arranged in the filtering box for preventing the filtering net from deviating. The outer wall of the filter box is provided with a singlechip which is electrically connected with the filter screen scraping device and the filter box. The device is in the face of a large amount of bulky debris in preliminary sewage treatment process, can carry out the clearance of filter screen automatically, has reduced people and has brought the trouble to the clearance, and has reduced the work load of artifical clearance, has saved the time widely.
The sewage impurity filtering device has the defects that firstly, a filter screen and a scraping device are driven by one motor respectively, so that the energy consumption is high, and the sewage impurity filtering device cannot work due to faults; secondly, the fixed part of the filter screen is impacted by high-strength water flow for a long time and is easy to damage; thirdly, it can only carry out single-stage filtration, and can not realize multi-stage filtration. And thus improvements thereof are required.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a sundry filtering auxiliary device and method for urban sewage treatment.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides an auxiliary device is filtered to debris for municipal sewage treatment, includes:
the sewage treatment device comprises a vertical filter box, a sewage inlet is formed in the top end of the vertical filter box, a sewage outlet is formed in the bottom end of the vertical filter box, a cleaning pipe capable of being opened or closed is installed at the side end of the vertical filter box, and a three-stage scraper assembly is installed on the inner wall of the vertical filter box;
the primary filtering mechanism consists of a primary filtering cylinder, a primary rotary driving component arranged on the upper side of the primary filtering cylinder, a primary rotary supporting component arranged on the lower side of the primary filtering cylinder and a primary scraper component arranged on the outer side of the primary filtering cylinder;
the secondary filter mechanism is composed of a secondary filter cylinder, a secondary rotary driving component arranged on the upper side of the secondary filter cylinder, a secondary rotary supporting component arranged on the lower side of the secondary filter cylinder and a secondary scraper component arranged on the outer side of the secondary filter cylinder, the secondary filter cylinder is sleeved on the outer side of the primary filter cylinder, the inner wall of the secondary filter cylinder is abutted to the primary scraper component, the secondary rotary driving component is positioned on the outer side of the primary rotary driving component, and the secondary rotary supporting component is positioned on the outer side of the primary rotary supporting component;
and tertiary filter mechanism, tertiary filter mechanism comprises tertiary cartridge filter, the tertiary rotation drive subassembly of installing at its upside and the tertiary rotation supporting component of installing at its downside, tertiary cartridge filter cover is established in the outside of secondary filter section of thick bamboo, and its inner wall and second grade scraper blade subassembly butt, the outer wall with tertiary scraper blade subassembly butt, tertiary rotation drive subassembly is located the outside of second grade rotation drive subassembly, tertiary rotation supporting component is located the outside of second grade rotation supporting component.
Furthermore, in the above-mentioned municipal sewage treatment sundries filtration auxiliary device, the primary rotary driving assembly is composed of a primary upper end plate, a primary rotary shaft and a primary fan wheel, the bottom end of the primary rotary shaft is fixed with the upper end of the primary filter cylinder through the primary upper end plate, and the primary rotary shaft is provided with the primary fan wheel;
the secondary rotation driving assembly is composed of a secondary upper end plate, a secondary rotating shaft and a secondary fan wheel, the bottom end of the secondary rotating shaft is fixed with the upper end of the secondary filter cylinder through the secondary upper end plate, the secondary upper end plate is provided with a through hole for the primary rotating shaft to pass through, the secondary rotating shaft is a hollow shaft and is sleeved on the outer side of the primary rotating shaft, the secondary fan wheel is installed on the secondary rotating shaft, and the horizontal position of the secondary fan wheel is lower than that of the primary fan wheel;
the three-level rotary driving assembly is composed of a three-level upper end plate, a three-level rotating shaft and a three-level fan wheel, the bottom end of the three-level rotating shaft is fixed to the upper end of the three-level filter cartridge through the three-level upper end plate, a through hole convenient for the second-level rotating shaft to pass through is formed in the three-level upper end plate, the three-level rotating shaft is a hollow shaft, the outer side of the second-level rotating shaft is sleeved with the three-level fan wheel, and the horizontal position of the three-level fan wheel is lower than that of the second-level fan wheel.
Furthermore, in the above-mentioned debris filters auxiliary device for municipal sewage treatment, the external diameter of one-level impeller is less than the external diameter of second grade impeller, the external diameter of second grade impeller is less than the external diameter of third grade impeller.
Furthermore, in the above-mentioned debris filters auxiliary device for urban sewage treatment, the flabellum direction of rotation of the fan blade of one-level impeller is the same with the flabellum direction of rotation of tertiary impeller, the flabellum direction of rotation of one-level impeller is the same with the flabellum direction of rotation of second grade impeller.
Furtherly, among the above-mentioned debris filter auxiliary device for municipal sewage treatment, the fixed pipe of one-level rotation supporting component includes one-level lower end plate, one-level movable pipe and rotary seal joint I, the fixed pipe of one-level and one-level support, the top of one-level movable pipe is fixed with the lower extreme of one-level cartridge filter through one-level lower end plate, and the bottom is rotated with the fixed pipe of one-level through rotary seal joint I and is connected and put through, the fixed pipe of one-level and outlet for sewer block to it is fixed with vertical rose box through one-level support.
Further, among the above-mentioned debris filter auxiliary device for municipal sewage treatment, second grade rotation support subassembly includes second grade lower end plate, second grade back shaft and rotatory sealing joint II, second grade fixed axle and second grade support even, the top of second grade back shaft is fixed with the lower extreme of second grade cartridge filter through second grade lower end plate, and the bottom is passed through rotary sealing joint II and is connected with the rotation of second grade fixed axle, the second grade fixed axle passes through the second grade support and fixes with vertical rose box.
Further, among the above-mentioned debris filter auxiliary device for municipal sewage treatment, tertiary rotatory supporting component includes tertiary lower end plate, activity ring, support ring, ball and tertiary support, the top of activity ring is fixed with the lower extreme of tertiary cartridge filter through tertiary lower end plate, and the bottom is equipped with the support ring that provides rotation support for it, just install the ball that is used for reducing the rotation resistance between activity ring and the support ring, the support ring passes through tertiary support and fixes with vertical rose box.
Furthermore, in the auxiliary device for filtering sundries for urban sewage treatment, the three-stage rotary supporting assembly and the three-stage filter cartridge are matched to jointly separate the inner cavity of the vertical treatment box to form an impurity discharging area communicated with the cleaning pipe, and the first-stage rotary supporting assembly and the second-stage rotary supporting assembly are positioned below the impurity discharging area; the vertical processing box is arranged above the impurity discharging area and is provided with a plurality of supporting plates for supporting a rotating shaft in a first-stage rotary driving assembly, a second-stage rotary driving assembly or a third-stage rotary driving assembly, and the supporting plates are provided with flow guide holes.
Furthermore, in the sundries filtering auxiliary device for urban sewage treatment, the primary scraper component, the secondary scraper component and the tertiary scraper component are respectively composed of a scraper seat, a scraper and compression springs, a clamping groove is formed in the scraper seat, the scraper is installed in the clamping groove, and a plurality of compression springs which are distributed side by side are connected between the inner end of the scraper and the bottom end of the clamping groove; the scraper is made of wear-resistant silica gel materials, and the scraper seat is made of stainless steel materials capable of serving as a slapping plate to break scraped objects in the rotating process.
An auxiliary sundry filtering method for urban sewage treatment is realized based on the device and specifically comprises the following steps:
1) the provided device is used as a treatment unit and is used at the front end of a sewage treatment system in parallel, each treatment unit is respectively communicated with a main pipeline through a branch pipe, and each branch pipe is provided with an opening valve;
2) sewage is led in through a sewage inlet at the top end of the vertical filter box to drive the first-stage, second-stage and third-stage rotary driving assemblies to work, the first-stage rotary driving assembly drives the first-stage filter cartridge to rotate in the forward direction, the second-stage rotary driving assembly drives the second-stage filter cartridge to rotate in the reverse direction, and the third-stage rotary driving assembly drives the third-stage filter cartridge to rotate in the forward direction; the outer wall plug of the third-stage filter cylinder is scraped off by the third-stage scraper component, the inner wall plug is scraped off by the second-stage scraper component, and the inner wall plug of the second-stage filter cylinder is scraped off by the first-stage scraper component; after sewage is filtered in proper order through tertiary cartridge filter, secondary filter section of thick bamboo, one-level cartridge filter, derives through the sewage export.
The invention has the beneficial effects that:
1. the invention adopts a motor-free design scheme, utilizes the potential energy of sewage falling vertically as the driving force, can drive each stage of filtering mechanisms to work, reduces energy consumption and simultaneously can avoid the condition that the filtering mechanisms cannot work due to power failure.
2. The filter cartridges at all levels cannot directly collide with falling sewage, so that the fixed part can be prevented from being impacted by high-strength water flow for a long time, and the service life of the filter cartridges is prolonged.
3. The invention can realize multi-stage filtration, wherein the outermost three-stage precision filtering mechanism can intercept large-volume sundries, the second-stage precision filtering mechanism can intercept small-volume sundries, and the second-stage precision filtering mechanism further beats the sundries by utilizing the rotation action of the second-stage scraper component to ensure that the sundries can enter the first-stage precision of the first-stage filter cylinder, thereby ensuring that the discharged sewage does not have large sundries, being beneficial to subsequent sewage treatment and eliminating the hidden trouble of subsequent sewage blockage.
4. The device provided by the invention can be used as a treatment unit to be connected in parallel at the front end of a sewage treatment system, each treatment unit is respectively communicated with a main pipeline through a branch pipe, and when the device needs to be cleaned internally, the opening valve is closed, and the cleaning can be realized by opening the cleaning pipe; the cleaning pipe can be additionally provided with a spiral sewage draining mechanism, and the opening valve is designed into an electric control valve, so that automatic and regular cleaning can be realized.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic structural view of a primary filter mechanism according to the present invention;
FIG. 3 is a schematic structural view of a secondary filtering mechanism according to the present invention;
FIG. 4 is a schematic view of a three-stage filtering mechanism according to the present invention;
FIG. 5 is a schematic view of the construction of the squeegee assembly of the present invention;
FIG. 6 is a schematic view of the present invention in use;
in the drawings, the components represented by the respective reference numerals are listed below:
1-vertical filter box, 2-first stage filter cartridge, 3-second stage filter cartridge, 4-third stage filter cartridge, 5-first stage rotation driving component, 501-first stage upper end plate, 502-first stage rotation shaft, 503-first stage impeller, 6-second stage rotation driving component, 601-second stage upper end plate, 602-second stage rotation shaft, 603-second stage impeller, 7-third stage rotation driving component, 701-third stage upper end plate, 702-third stage rotation shaft, 703-third stage impeller, 8-horizontal cross bar, 9-first stage rotation supporting component, 901-first stage lower end plate, 902-first stage movable pipe, 903-rotation sealing joint I, 904-first stage fixed pipe, 905-first stage support, 10-second stage rotation supporting component, 101-second stage lower end plate, 102-a secondary support shaft, 103-a rotary connecting sealing joint II, 104-a secondary fixed shaft, 105-a secondary support, 11-a tertiary rotary support component, 111-a tertiary lower end plate, 112-a movable ring, 113-a support ring, 114-a ball, 115-a tertiary support, 12-a primary scraper component, 121-a scraper seat, 122-a scraper, 123-a compression spring, 13-a secondary scraper component, 14-a tertiary scraper component, 15-a sewage inlet, 16-a sewage outlet, 17-a cleaning pipe, 18-a support plate, 19-a diversion hole, 20-a main pipe, 21-a branch pipe and 22-an opening valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, this embodiment provides a sundries filtering auxiliary device for municipal sewage treatment, including vertical filter box 1, first-stage filtering mechanism, second-stage filtering mechanism and third-stage filtering mechanism, in this embodiment, first-stage, second-stage and third-stage mainly refer to the precision of filtration, and the lower the level, the higher the precision of filtration.
In this embodiment, the top of vertical rose box 1 is equipped with sewage inlet 15, and the bottom is equipped with sewage outlet 16, and the pipe 17 is drawn to the side-mounting that can open or close clearly, and the inner wall of vertical rose box 1 has tertiary scraper blade subassembly 14 through many horizontal poles 8 fixed mounting.
In this embodiment, the primary filter mechanism is composed of a primary filter cartridge 2, a primary rotary drive assembly 5 mounted on the upper side thereof, a primary rotary support assembly 9 mounted on the lower side thereof, and a primary scraper assembly 12 mounted on the outer side thereof. The first-stage rotation driving assembly 5 is composed of a first-stage upper end plate 501, a first-stage rotating shaft 502 and a first-stage impeller 503, the bottom end of the first-stage rotating shaft 502 is fixed with the upper end of the first-stage filter cylinder 2 through the first-stage upper end plate 501, and the first-stage impeller 503 is mounted on the first-stage rotating shaft 502. First-order rotation support assembly 9 includes one-level lower end plate 901, one-level movable tube 902 and rotary seal joint I903, the fixed pipe 904 of one-level and one-level support 905, the top of one-level movable tube 902 is fixed with the lower extreme of one-level cartridge filter 2 through one-level lower end plate 901, the bottom is connected and is put through rotary seal joint I903 and the fixed pipe 904 rotation of one-level, the fixed pipe 904 of one-level and the 16 block of outlet for sewer to it is fixed with vertical rose box 1 through one-level support 905.
In this embodiment, the secondary filter mechanism is composed of a secondary filter cartridge 3, a secondary rotary drive assembly 6 mounted on the upper side thereof, a secondary rotary support assembly 10 mounted on the lower side thereof, and a secondary scraper assembly 13 mounted on the outer side thereof. The second-stage filter cartridge 3 is sleeved outside the first-stage filter cartridge 2, and the inner wall of the second-stage filter cartridge is abutted against the first-stage scraper component 12. The secondary rotary drive assembly 6 is located outside the primary rotary drive assembly 5, and the secondary rotary support assembly 10 is located outside the primary rotary support assembly 9. The secondary rotation driving assembly 6 is composed of a secondary upper end plate 601, a secondary rotating shaft 602 and a secondary impeller 603, the bottom end of the secondary rotating shaft 602 is fixed with the upper end of the secondary filter cylinder 3 through the secondary upper end plate 602, the secondary upper end plate 601 is provided with a through hole for the primary rotating shaft 502 to pass through, and a shaft seal is arranged at the through hole. The second-stage rotating shaft 602 is a hollow shaft, and is sleeved outside the first-stage rotating shaft 502, the second-stage rotating shaft 602 is provided with a second-stage impeller 603, and the horizontal position of the second-stage impeller 603 is lower than that of the first-stage impeller 503. The second-stage rotary supporting component 10 comprises a second-stage lower end plate 101, a second-stage supporting shaft 102, a rotary connecting sealing joint II 103, a second-stage fixing shaft 104 and a second-stage support 105, the top end of the second-stage supporting shaft 102 is fixed with the lower end of the second-stage filter cylinder 3 through the second-stage lower end plate 101, the bottom end of the second-stage supporting shaft is rotatably connected with the second-stage fixing shaft 104 through the rotary sealing joint II 103, and the second-stage fixing shaft 104 is fixed with the vertical filter box 1 through the second-stage support 105. The secondary lower end plate 101, the secondary support shaft 102, the rotary connecting sealing joint II 103 and the secondary fixed shaft 104 are provided with avoidance holes for avoiding the primary movable pipe 902.
In this embodiment, the tertiary filter mechanism comprises tertiary filter cylinder 4, tertiary rotation drive assembly 7 installed on its upside and tertiary rotation support assembly 11 installed on its downside, and tertiary filter cylinder 4 cover is established in the outside of secondary filter cylinder 3, and its inner wall and second grade scraper blade subassembly 13 butt, outer wall and tertiary scraper blade subassembly 14 butt. The tertiary rotary drive assembly 7 is located outside the secondary rotary drive assembly 6, and the tertiary rotary support assembly 11 is located outside the secondary rotary support assembly 10. The three-level rotary driving assembly 7 is composed of a three-level upper end plate 701, a three-level rotating shaft 702 and a three-level impeller 703, the bottom end of the three-level rotating shaft 702 is fixed with the upper end of the three-level filter cartridge 4 through the three-level upper end plate 701, the three-level upper end plate 701 is provided with a through hole which is convenient for the second-level rotating shaft 602 to pass through, and a shaft seal is installed at the through hole. The third-stage rotating shaft 702 is a hollow shaft and is sleeved outside the second-stage rotating shaft 602, the third-stage rotating shaft 702 is provided with a third-stage impeller 703, and the horizontal position of the third-stage impeller 703 is lower than that of the second-stage impeller 603. The tertiary rotation support assembly 11 comprises a tertiary lower end plate 111, a movable ring 112, a support ring 113, balls 114 and a tertiary support 115, the top end of the movable ring 112 is fixed with the lower end of the tertiary filter cartridge 4 through the tertiary lower end plate 111, the bottom end of the movable ring is provided with the support ring 113 for providing rotation support for the movable ring, the balls 114 for reducing rotation resistance are installed between the movable ring 112 and the support ring 113, and the support ring 113 is fixed with the vertical filter box 1 through the tertiary support 115.
In this embodiment, the outer diameter of the first-stage impeller 503 is smaller than the outer diameter of the second-stage impeller 603, and the outer diameter of the second-stage impeller 603 is smaller than the outer diameter of the third-stage impeller 703. The rotation direction of the fan blades of the first-stage impeller 503 is the same as that of the fan blades of the third-stage impeller 703, and the rotation direction of the fan blades of the first-stage impeller 503 is the same as that of the fan blades of the second-stage impeller 603.
In this embodiment, the three-stage rotation supporting assembly 11 and the three-stage filter cartridge 4 cooperate to separate the inner cavity of the vertical processing box 1 together, so as to form a trash discharging area communicated with the cleaning pipe 17, and the one-stage rotation supporting assembly 9 and the two-stage rotation supporting assembly 10 are located below the trash discharging area. A plurality of supporting plates 18 for supporting the middle rotating shaft of the first-stage rotary driving component 9, the second-stage rotary driving component 10 or the third-stage rotary driving component 11 are arranged above the impurity discharging area of the vertical processing box 1, and the supporting plates 18 are provided with flow guide holes 19.
In this embodiment, as shown in fig. 5, the first-stage scraper component 12, the second-stage scraper component 12, and the third-stage scraper component 14 are respectively composed of a scraper seat 121, a scraper 122, and a compression spring 123, a slot is formed in the scraper seat 121, the scraper 122 is installed in the slot, and a plurality of compression springs 123 distributed side by side are connected between the inner end of the scraper 122 and the bottom end of the slot, the scraper 122 designed as the compression spring 123 can closely abut against an object, and can automatically "compensate" after being worn, thereby ensuring the scraping effect. The scraper 122 is made of a wear-resistant silicone material and the scraper base 121 is made of a stainless steel material that can act as a slapping plate to break up scraped debris during rotation.
The embodiment also provides an auxiliary sundry filtering method for urban sewage treatment, which specifically comprises the following steps:
1) the provided device is used as a treatment unit in parallel at the front end of a sewage treatment system, as shown in fig. 6, each treatment unit is respectively communicated with a main pipeline 20 through a branch pipe 21, and an opening valve 22 is arranged on each branch pipe 21;
2) sewage is led in through a sewage inlet 15 at the top end of the vertical filter box 1 to drive the first-stage, second-stage and third-stage rotary driving assemblies to work, the first-stage rotary driving assembly 5 drives the first-stage filter cylinder 2 to rotate in the forward direction, the second-stage rotary driving assembly 6 drives the second-stage filter cylinder 3 to rotate in the reverse direction, and the third-stage rotary driving assembly 7 drives the third-stage filter cylinder 4 to rotate in the forward direction; the outer wall plug of the third-stage filter cylinder 4 is scraped off by the third-stage scraper component 14, the inner wall plug is scraped off by the second-stage scraper component 13, and the inner wall plug of the second-stage filter cylinder 3 is scraped off by the first-stage scraper component 12; after sewage is filtered in proper order through tertiary cartridge filter 4, secondary filter section of thick bamboo 3, primary filter section of thick bamboo 2, derives through the sewage export.
When the interior of the device needs to be cleaned, the opening valve 22 is closed, and the cleaning pipe 17 is opened to realize cleaning; the cleaning pipe 17 can be additionally provided with a spiral sewage draining mechanism, the opening valve 22 is designed to be an electric control valve, the bottom surface of the impurity discharging area is designed to be a sliding material surface with a certain inclination, and the low-level end of the sliding material surface is positioned at the inner end of the cleaning pipe 17, so that automatic and regular cleaning can be realized.
The preferred embodiments of the present invention disclosed above are intended to facilitate the explanation of the present invention only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides an auxiliary device is filtered to debris for municipal sewage treatment which characterized in that includes:
the vertical filter box is provided with a sewage inlet at the top end and a sewage outlet at the bottom end, a cleaning pipe capable of being opened or closed is mounted at the side end, and a three-stage scraper assembly is mounted on the inner wall of the vertical filter box;
the primary filtering mechanism consists of a primary filtering cylinder, a primary rotary driving component arranged on the upper side of the primary filtering cylinder, a primary rotary supporting component arranged on the lower side of the primary filtering cylinder and a primary scraper component arranged on the outer side of the primary filtering cylinder;
the secondary filter mechanism is composed of a secondary filter cylinder, a secondary rotary driving component arranged on the upper side of the secondary filter cylinder, a secondary rotary supporting component arranged on the lower side of the secondary filter cylinder and a secondary scraper component arranged on the outer side of the secondary filter cylinder, the secondary filter cylinder is sleeved on the outer side of the primary filter cylinder, the inner wall of the secondary filter cylinder is abutted to the primary scraper component, the secondary rotary driving component is positioned on the outer side of the primary rotary driving component, and the secondary rotary supporting component is positioned on the outer side of the primary rotary supporting component;
and tertiary filter mechanism, tertiary filter mechanism comprises tertiary cartridge filter, the tertiary rotation drive subassembly of installing at its upside and the tertiary rotation supporting component of installing at its downside, tertiary cartridge filter cover is established in the outside of secondary filter section of thick bamboo, and its inner wall and second grade scraper blade subassembly butt, the outer wall with tertiary scraper blade subassembly butt, tertiary rotation drive subassembly is located the outside of second grade rotation drive subassembly, tertiary rotation supporting component is located the outside of second grade rotation supporting component.
2. The sundry filter auxiliary device for urban sewage treatment according to claim 1, characterized in that: the primary rotary driving assembly consists of a primary upper end plate, a primary rotating shaft and a primary fan wheel, the bottom end of the primary rotating shaft is fixed with the upper end of the primary filter cylinder through the primary upper end plate, and the primary rotating shaft is provided with the primary fan wheel;
the secondary rotation driving assembly is composed of a secondary upper end plate, a secondary rotating shaft and a secondary fan wheel, the bottom end of the secondary rotating shaft is fixed with the upper end of the secondary filter cylinder through the secondary upper end plate, the secondary upper end plate is provided with a through hole for the primary rotating shaft to pass through, the secondary rotating shaft is a hollow shaft and is sleeved on the outer side of the primary rotating shaft, the secondary fan wheel is installed on the secondary rotating shaft, and the horizontal position of the secondary fan wheel is lower than that of the primary fan wheel;
the three-level rotary driving assembly is composed of a three-level upper end plate, a three-level rotating shaft and a three-level fan wheel, the bottom end of the three-level rotating shaft is fixed to the upper end of the three-level filter cartridge through the three-level upper end plate, a through hole convenient for the second-level rotating shaft to pass through is formed in the three-level upper end plate, the three-level rotating shaft is a hollow shaft, the outer side of the second-level rotating shaft is sleeved with the three-level fan wheel, and the horizontal position of the three-level fan wheel is lower than that of the second-level fan wheel.
3. The municipal sewage treatment sundries filtering auxiliary device according to claim 2, characterized in that: the outer diameter of the first-stage impeller is smaller than that of the second-stage impeller, and the outer diameter of the second-stage impeller is smaller than that of the third-stage impeller.
4. The sundry filter auxiliary device for urban sewage treatment according to claim 2, characterized in that: the rotating direction of the fan blades of the first-stage fan wheel is the same as that of the fan blades of the third-stage fan wheel, and the rotating direction of the fan blades of the first-stage fan wheel is the same as that of the fan blades of the second-stage fan wheel.
5. The sundry filter auxiliary device for urban sewage treatment according to claim 1, characterized in that: the one-level rotation support assembly comprises a one-level lower end plate, a one-level movable pipe, a rotation sealing joint I, a one-level fixed pipe and a one-level support, wherein the top end of the one-level movable pipe is fixed with the lower end of the one-level filter cartridge through the one-level lower end plate, the bottom end of the one-level movable pipe is connected and communicated with the one-level fixed pipe in a rotating mode through the rotation sealing joint I, the one-level fixed pipe is clamped with a sewage outlet, and the one-level fixed pipe is fixed with the vertical filter box through the one-level support.
6. The sundry filter auxiliary device for urban sewage treatment according to claim 5, wherein: the second grade rotation support subassembly includes second grade lower plate, second grade back shaft and rotatory sealing joint II, second grade fixed axle and second grade support, the top of second grade back shaft is fixed with the lower extreme of second grade cartridge filter through second grade lower plate, and the bottom is passed through rotary sealing joint II and is connected with the rotation of second grade fixed axle, the second grade fixed axle passes through the second grade support and fixes with vertical rose box.
7. The sundry filter auxiliary device for urban sewage treatment according to claim 6, wherein: the tertiary rotation support subassembly includes tertiary lower end plate, activity ring, support ring, ball and tertiary support, the top of activity ring is fixed with the lower extreme of tertiary cartridge filter through tertiary lower end plate, and the bottom is equipped with the support ring that provides rotation support for it, just install the ball that is used for reducing the rolling resistance between activity ring and the support ring, the support ring is fixed with vertical rose box through tertiary support.
8. The sundry filter auxiliary device for urban sewage treatment according to claim 7, wherein: the three-stage rotary supporting assembly and the three-stage filter cylinder are matched to jointly separate the inner cavity of the vertical processing box to form an impurity discharging area communicated with the cleaning pipe, and the first-stage rotary supporting assembly and the second-stage rotary supporting assembly are positioned below the impurity discharging area; the vertical processing box is arranged above the impurity discharging area and is provided with a plurality of supporting plates for supporting a rotating shaft in a first-stage rotary driving assembly, a second-stage rotary driving assembly or a third-stage rotary driving assembly, and the supporting plates are provided with flow guide holes.
9. The sundry filter auxiliary device for urban sewage treatment according to claim 1, characterized in that: the first-stage scraper component, the second-stage scraper component and the third-stage scraper component are respectively composed of a scraper seat, scrapers and compression springs, clamping grooves are formed in the scraper seat, the scrapers are installed in the clamping grooves, and a plurality of compression springs which are distributed side by side are connected between the inner ends of the scrapers and the bottom ends of the clamping grooves; the scraper is made of wear-resistant silica gel materials, and the scraper seat is made of stainless steel materials capable of serving as a slapping plate to break scraped objects in the rotating process.
10. An auxiliary sundry filtering method for urban sewage treatment is realized on the basis of the device of any one of claims 1 to 9, and is characterized by comprising the following steps:
1) the provided device is used as a treatment unit in parallel at the front end of a sewage treatment system, each treatment unit is respectively communicated with a main pipeline through a branch pipe, and each branch pipe is provided with an opening valve;
2) sewage is led in through a sewage inlet at the top end of the vertical filter box to drive the first-stage, second-stage and third-stage rotary driving assemblies to work, the first-stage rotary driving assembly drives the first-stage filter cartridge to rotate in the forward direction, the second-stage rotary driving assembly drives the second-stage filter cartridge to rotate in the reverse direction, and the third-stage rotary driving assembly drives the third-stage filter cartridge to rotate in the forward direction; the outer wall plug of the third-stage filter cylinder is scraped off by the third-stage scraper component, the inner wall plug is scraped off by the second-stage scraper component, and the inner wall plug of the second-stage filter cylinder is scraped off by the first-stage scraper component; after sewage is filtered in proper order through tertiary cartridge filter, secondary filter section of thick bamboo, one-level cartridge filter, derives through the sewage export.
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