CN211999265U

CN211999265U - Circulating filter equipment

Info

Publication number: CN211999265U
Application number: CN202020446415.2U
Authority: CN
Inventors: 周爱军
Original assignee: Nanjing Di Environmental Technology Engineering Co ltd
Current assignee: Nanjing Di Environmental Technology Engineering Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-24
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a circulating filter equipment belongs to sewage treatment technical field. The circulating type filtering device comprises a sedimentation tank, a filtering main body and a cleaning assembly; the filtering main body comprises a frame, a driving shaft, a driven shaft, a chain wheel, a filtering belt and a driving motor. Drive the driving shaft motion through driving motor and make the cassette cyclic motion carry out filtration treatment to sewage, sewage oozes to the sedimentation tank in after handling, sets up the clearance subassembly simultaneously and clears up the cassette to effectively avoid the pollutant particle to block up filter equipment's the condition, ensure the filter effect of cassette, prevent that filtration efficiency from reducing. Compared with the prior art, the utility model provides a circulating filter equipment can effectively avoid filter equipment to block up, and need not to dismantle the clearance, has higher sewage treatment efficiency.

Description

Circulating filter equipment

Technical Field

The utility model belongs to the technical field of sewage treatment, especially, circulating filter equipment.

Background

Water is a source of life and is a necessary condition for life existence and economic development. With the continuous development of economy, water pollution of countries, especially developing countries, is more and more serious. For example, in China, seven water systems (Liaohe, Huai river, Hai river, Huang river, Songhua river and Changjiang river) meet the first and second standards of the ground water environmental quality standard, and only 32.2 percent of the water systems meet the first and second standards, the length of the polluted river is 67.8 percent, and thus the pollution of surface water resources in China is very serious.

At present, the water pollution treatment methods mainly comprise two types, one type is a physical treatment method, the polluted impurities in water are cleaned by using the modes of filtration, precipitation and the like, and the chemical properties are not changed in the treatment process; another type is a chemical treatment process, in which inorganic or organic dissolved or colloidal substances in the wastewater are removed by chemical reaction. In order to improve the purification degree of the sewage in practical application, the two methods are generally combined.

In the physical treatment method for water pollution, because the polluted impurities in the sewage are more, even if the sewage is settled in a standing way, a large amount of suspended particles still exist in the sewage, and when the sewage is filtered, the suspended particles can be deposited on the filtering device to block the filtering device, so that the water seepage performance of the filtering device is reduced, and the treatment efficiency of the sewage is further seriously reduced.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: provides a circulating type filtering device to solve the problems in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

a circulating filtration device comprising:

the sedimentation tank comprises a drain pipe, the drain pipe is fixedly connected with one end, close to the bottom, of the side surface of the sedimentation tank, and the sedimentation tank is fixed on an installation foundation through a support column;

the filter main body comprises a horizontally arranged rectangular frame, a driving shaft rotationally connected with one side of the frame, a driven shaft rotationally connected with the other side of the frame, a plurality of chain wheels sleeved on the driving shaft and the driven shaft, a filter belt in transmission connection with the chain wheels on the driving shaft and the driven shaft, and a driving motor for driving the driving shaft to rotate; the frame is fixedly connected with the top of the sedimentation tank; the driving shaft and the driven shaft are both horizontally arranged and are parallel to each other; the filter belt is connected end to end, the filter belt comprises an inner-layer chain, a middle-layer bearing belt and an outer-layer water filtering membrane, the chain is meshed with the chain wheel, and the bearing belt is fixedly connected with the chain and the water filtering membrane respectively; the driving motor is fixed on the frame and is in transmission connection with the driving shaft through a speed reducer;

the cleaning assembly is arranged on one side, close to the driven shaft, of the frame and used for cleaning the filter belt.

In a further embodiment, the cleaning assembly comprises: the cleaning roller and the cleaning felt coated on the circumferential surface of the cleaning roller; the cleaning roller is rotatably connected with the end part of one side of the frame, which is far away from the driving shaft, the cleaning roller is horizontally arranged and is parallel to the driven shaft, the cleaning roller is in transmission connection with the driven shaft through a gear set, and the direction of rotation of the cleaning roller is the same as that of the driven shaft; the cleaning felt is at least partially contacted with the water filtering membrane of the filter belt; the cleaning roller and the driven shaft rotate in the same direction, the movement direction of the cleaning felt and the movement direction of the filter belt at the contact position are opposite, the cleaning felt cleans the water filtering membrane on the filter belt, and the cleaned filter belt continues to move to the horizontal direction and filters sewage.

In a further embodiment, the gear set comprises a first gear sleeved at one side end part of the driven shaft, a second gear sleeved at one side end part of the cleaning roller and a third gear arranged between the first gear and the second gear, and the third gear is respectively meshed with the first gear and the second gear; the first gear drives the second gear to rotate through the third gear, and the steering of the first gear is the same as the steering of the second gear, so that the steering of the cleaning roller and the driven shaft is the same as the steering of the driven shaft.

In a further embodiment, the circulating type filtering device further comprises an oxygen increasing assembly, the oxygen increasing assembly comprises an oxygen increasing machine and an oxygen increasing pipe communicated with an air outlet of the oxygen increasing machine, the bottom of the oxygen increasing machine is fixedly connected with a bottom plate, and the bottom plate is fixedly connected with the bottom of the sedimentation tank; one end of the oxygenation pipe, which is far away from the aerator, is connected with a drain pipe; the filtered clear water is oxygenated by the oxygenation assembly, so that the oxygen content of the filtered clear water is improved, and the self-purification capacity of the cleaned water body is improved.

In a further embodiment, the frame further comprises two water baffles which are symmetrically arranged, the bottoms of the water baffles are fixedly connected with two side edges of the frame, which are perpendicular to the driving shaft or the driven shaft, and the tops of the water baffles are inclined towards one side far away from the frame; the water baffle can prevent sewage from splashing out of the filtering device.

In a further embodiment, the circulating type filtering device further comprises a supporting component for supporting the filter belt, the supporting component is arranged in the inner ring of the filter belt, and the supporting component comprises a plurality of first supporting plates and second supporting plates; the first supporting plate is horizontally arranged, and two ends of the first supporting plate are respectively fixedly connected with two side edges of the frame, which are perpendicular to the driving shaft or the driven shaft; the length direction of the second supporting plate is vertical to that of the first supporting plate, and the bottom surface of the second supporting plate is fixedly connected with the top surface of the first supporting plate; the filter belt is pressed and deforms downwards when sewage on the filter belt is more, the filter belt can be supported by the support assembly, the deformation degree of the filter belt is reduced, and the filter membrane is prevented from being torn and damaged.

In a further embodiment, the water filtration membrane employs a cellulose ester porous membrane.

Has the advantages that: the utility model provides a circulating filter equipment includes: the device comprises a sedimentation tank, a filtering main body and a cleaning assembly; wherein, filter the main part and include frame, driving shaft, driven shaft, sprocket, filter belt and driving motor. Drive the driving shaft motion through driving motor and make the cassette cyclic motion carry out filtration treatment to sewage, sewage oozes to the sedimentation tank in after handling, sets up the clearance subassembly simultaneously and clears up the cassette to effectively avoid the pollutant particle to block up filter equipment's the condition, ensure the filter effect of cassette, prevent that filtration efficiency from reducing. Compared with the prior art, the utility model provides a circulating filter equipment can effectively avoid filter equipment to block up, and need not to dismantle the clearance, has higher sewage treatment efficiency.

Drawings

Fig. 1 is a schematic structural view of a circulating type filtration apparatus according to the present invention.

Fig. 2 is a side view of the circulating filter apparatus of the present invention.

Fig. 3 is a schematic structural view of the circulating type filtering apparatus of the present invention without a filter belt.

Fig. 4 is a partial schematic view of the present invention at a in fig. 2.

Fig. 5 is a partial schematic view of the filtering main body and the cleaning assembly of the circulating type filtering apparatus of the present invention.

The reference signs are: the device comprises a sedimentation tank 10, a drain pipe 11, a support upright 12, a welding rod 13, a filtering main body 20, a frame 21, a water baffle 211, a driving shaft 22, a driven shaft 23, a chain wheel 24, a filtering belt 25, a chain 251, a bearing belt 252, a water filtering film 253, a driving motor 26, a speed reducer 27, a cleaning assembly 30, a cleaning roller 31, a cleaning felt 32, a gear set 33, a first gear 331, a second gear 332, a third gear 333, an oxygen increasing assembly 40, an oxygen increasing assembly 41, an oxygen increasing pipe 42, a bottom plate 43, a support assembly 50, a first support plate 51 and a second support plate 52.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

Researches of researchers find that the current water pollution treatment method mainly comprises a physical treatment method and a chemical treatment method, wherein in the physical treatment method, sewage is usually required to be precipitated and filtered, a large amount of suspended particles still exist after the sewage is statically precipitated, and the suspended particles are deposited on a filtering device to block the filtering device during filtering, so that the water seepage performance of the filtering device is greatly reduced, the speed of the filtering process of the sewage is also greatly reduced, and the treatment efficiency of the sewage is further seriously reduced.

In order to solve the above problem, the present invention provides a circulation type filtering apparatus, as shown in fig. 1, the circulation type filtering apparatus includes a settling tank 10, a filtering main body 20 and a cleaning assembly 30.

The lower half part of the sedimentation tank 10 in this embodiment is a rectangular structure, the upper half part of the sedimentation tank 10 is a funnel-shaped structure, and the upper half part and the lower half part of the sedimentation tank 10 are welded into a whole. The sedimentation tank 10 is made of stainless steel and has corrosion resistance and rust resistance. The sedimentation tank 10 further comprises a drain pipe 11, the drain pipe 11 is welded and fixed with one end of the lower half side of the sedimentation tank 10 close to the bottom, and the drain pipe 11 is communicated with the inside of the sedimentation tank 10. In practice, a drain valve (not shown) may be disposed on the drain pipe 11 to control the drainage rate of the drain pipe 11. On the sedimentation tank 10 was through 4 support post 12 fixed mounting bases, support post 12 and sedimentation tank 10's the side welded fastening of the first half, the side of the latter half of sedimentation tank 10 passes through welding rod 13 and support post 12 welded fastening.

Referring to fig. 1 to 4, the filter body 20 in the present embodiment includes a rectangular frame 21, a driving shaft 22, a driven shaft 23, a sprocket 24, a filter belt 25, a driving motor 26, and a speed reducer 27. Specifically, the frame 21 is a rectangular stainless steel frame 21, the frame 21 is horizontally arranged, and the bottom of the frame 21 is fixedly connected with the top of the sedimentation tank 10. The driving shaft 22 is rotatably connected with one side of the frame 21, the driven shaft 23 is rotatably connected with the other side of the frame 21, and the driving shaft 22 and the driven shaft 23 are both horizontally arranged and are mutually parallel; the driving shaft 22 and the driven shaft 23 are respectively sleeved with a plurality of chain wheels 24, the driving shaft 22 is fixedly connected with the chain wheels 24, and the driven shaft 23 is fixedly connected with the chain wheels 24, and the number of the chain wheels 24 on the driving shaft 22 is equal to that of the chain wheels 24 on the driven shaft 23. The filter belt 25 is in transmission connection with chain wheels 24 on the driving shaft 22 and the driven shaft 23. Specifically, the filter belt 25 is connected end to form a ring shape, the inner layer of the filter belt 25 is a chain 251, and the chain 251 is meshed and matched with the chain wheel 24 on the driving shaft 22 and the chain wheel 24 on the driven shaft 23; the middle layer of the filter belt 25 is a carrier belt 252, the inner side of the carrier belt 252 is fixedly connected with the chain 251, a steel wire buckle 254 can penetrate through the link of the chain 251 and is fixedly connected with the carrier belt 252 through the steel wire buckle 254, and the carrier belt 252 has certain water permeability and tensile strength; the outer layer of the filter belt 25 is a water filtering membrane 253, the inner side of the water filtering membrane 253 is fixedly connected with the bearing belt 252, and the water filtering membrane 253 and the bearing belt 252 can be fixedly connected in a dispensing connection mode; the water filtration film 253 is a cellulose ester porous film which is a white porous film made of cellulose and cellulose acetate. The pore size of the water filtering membrane 253 is 0.1-10.0 microns, so that fine solids in liquid can be effectively collected, and the water filtering membrane has excellent filtering performance. The outer shell of the speed reducer 27 is fixedly connected with the side edge of the frame 21, which is perpendicular to the driving shaft 22, the output end of the speed reducer 27 is fixedly connected with the end part of the driving shaft 22, and the input end of the speed reducer 27 is fixedly connected with the output shaft of the driving motor 26; the drive motor 26 is fixed to the frame 21. The driving motor 26 runs to drive the driving shaft 22 to rotate through the speed reducer 27, the chain wheel 24 on the driving shaft 22 drives the filter belt 25 to rotate circularly, when sewage passes through the filter belt 25, the filter belt 25 filters the sewage, the filtered water seeps into the sedimentation tank 10 to further stand and precipitate, and the filtered sewage cannot be concentrated and deposited at a certain position of the filter belt 25 due to the circular motion of the filter belt 25, so that the risk of blockage of the water filtering membrane 253 is reduced.

With reference to fig. 3 and 5, the cleaning assembly 30 in this embodiment is disposed on one side of the frame 21 close to the driven shaft 23, a distance from the cleaning assembly 30 to the driving shaft 22 is greater than a distance from the driven shaft 23 to the driving shaft 22, the filter belt 25 filters the sewage and then moves to the cleaning assembly 30, the cleaning assembly 30 cleans impurities deposited on the filter belt 25, and the cleaned filter belt 25 moves circularly to continue to filter the sewage. The cleaning assembly 30 comprises a cleaning roller 31 and a cleaning felt 32, the cleaning roller 31 is rotatably connected with the end part of one end of the frame 21 far away from the driving shaft 22, the cleaning roller 31 is horizontally arranged, and the axis of the cleaning roller 31 is parallel to the axis of the driven shaft 23. The cleaning roller 31 is in transmission connection with the driven shaft 23 through a gear set 33, and when the driven shaft 23 rotates, the driven shaft 23 drives the cleaning roller 31 to rotate in the same direction through the gear set 33. The cleaning felt 32 is covered on the surface of the cleaning roller 31, and at least part of the cleaning felt 32 is in contact with the outermost water filtering film 253 of the filter belt 25. Since the rotation direction of the cleaning roller 31 is the same as that of the driven shaft 23, the movement direction of the cleaning felt 32 of the cleaning roller 31 and the filter belt 25 at the contact position is opposite, the cleaning felt 32 cleans the water filtering film 253, and impurities on the water filtering film 253 are brushed away by the cleaning felt 32. The cleaned filter belt 25 continues to move to the horizontal direction to filter the sewage.

Referring to fig. 5, the gear set 33 in the present embodiment includes a first gear 331, a second gear 332, and a third gear 333. The first gear 331 is sleeved on an end portion of one side of the driven shaft 23, and the first gear 331 is fixedly connected with the driven shaft 23. The second gear 332 is sleeved on an end portion of one side of the cleaning roller 31, and the second gear 332 is fixedly connected with the end portion of the cleaning roller 31. The third gear 333 is disposed between the first gear 331 and the second gear 332, the third gear 333 is rotatably connected to the frame 21, and the third gear 333 is engaged with the first gear 331 and the second gear 332, respectively. When the driven shaft 23 rotates, the first gear 331 drives the second gear 332 to rotate through the third gear 333, and the rotation direction of the second gear 332 is the same as that of the first gear 331, so that the cleaning roller 31 and the driven shaft 23 rotate in the same direction.

When the oxygen content in the water is insufficient, the organic matters in the water undergo anaerobic differentiation to cause water quality deterioration, and when the oxygen content in the water is insufficient, the self-purification capacity of the water is correspondingly reduced, thereby causing vicious circle of water quality deterioration. Therefore, in order to prevent the filtered water from rapidly deteriorating, referring to fig. 1, in a further embodiment, the circulating type filtering apparatus further includes an oxygen increasing assembly 40 for increasing oxygen content in the filtered water by increasing oxygen content in the filtered water through the oxygen increasing assembly 40. The oxygen increasing assembly 40 includes an oxygen increasing machine 41 and an oxygen increasing pipe 42. The bottom shell of the oxygen increasing pipe 42 is fixedly connected with a horizontal bottom plate 43, the bottom plate 43 is fixedly connected with the bottom of the sedimentation tank 10 and is provided with a bottom plate 43 extending outwards, and the bottom shell of the oxygen increasing machine 41 is arranged on the bottom plate 43. The air outlet of the aerator 41 is connected with one end of the aerator pipe 42, and the other end of the aerator pipe 42 is communicated with the drain pipe 11. When the filtered water in the sedimentation tank 10 is discharged from the water discharge pipe 11, the oxygen increasing machine 41 increases the oxygen in the water discharge pipe 11 through the oxygen increasing pipe 42, so that the oxygen content of the discharged water is increased, and the self-cleaning capability of the cleaned water body is improved.

In order to prevent the water filtering membrane 253 from being torn and damaged during the deformation process, in combination with fig. 2 and 3, in a further embodiment, the circulation type filtering apparatus further includes a supporting assembly 50 for supporting the filtering belt 25. The supporting component 50 is arranged in the inner ring of the filter belt 25, the supporting component 50 comprises a plurality of first supporting plates 51 and second supporting plates 52, the first supporting plates 51 are horizontally arranged, two ends of the first supporting plates 51 are respectively fixedly connected with the inner sides of two side edges of the frame 21, which are perpendicular to the driving shaft 22 or the driven shaft 23, the length direction of the second supporting plates 52 is perpendicular to the length direction of the first supporting plates 51, and the bottom surfaces of the second supporting plates 52 are fixedly connected with the top surfaces of the first supporting plates 51. When the sewage on the filter belt 25 is more and downwardly deformed, the support assembly 50 of the support assembly 50 supports the filter belt 25, so that the deformation of the filter belt 25 is reduced, and the filter membrane 253 is prevented from being torn and damaged.

In a further embodiment, referring to fig. 3, the frame 21 further includes two water baffles 211 symmetrically disposed, bottom surfaces of the water baffles 211 are fixedly connected to two sides of the frame 21 perpendicular to the driving shaft 22 or the driven shaft 23, and top portions of the water baffles 211 are inclined to a side away from the frame 21. When sewage falls into the filter belt 25 from the eminence, sewage can strike the filtration device that splashes out, can block the sewage that splashes through setting up breakwater 211, avoids sewage to splash out.

The working principle is as follows: when sewage is subjected to preliminary standing and sedimentation, water is discharged to a circulating type filtering device through a drainage device, a water filtering membrane 253 at the upper horizontal section of a filter belt 25 filters the water, the filtered water leaks into a sedimentation tank 10, and filtered impurities remain on the water filtering membrane 253; the driving motor 26 drives the driving shaft 22 to rotate through the speed reducer 27, the driving shaft 22 drives the driven shaft 23 to rotate through the chain wheel 24 and the filter belt 25 to circularly move, and the filter belt 25 carries impurities to move to one side of the cleaning roller 31; the driven shaft 23 drives the cleaning roller 31 to rotate through the gear set 33, the cleaning felt 32 on the cleaning roller 31 continuously scrapes and brushes the filter belt 25, and impurities on the filter belt 25 are cleaned; the cleaned filter belt 25 circularly moves to the horizontal position to clean the water body continuously. In addition, the cleaned water is discharged through the drain pipe 11 after standing and precipitating in the sedimentation basin 10, and the oxygen increasing machine 41 increases the oxygen content of the discharged water by increasing the oxygen of the water in the drain pipe 11 through the oxygen increasing pipe 42. Use the circulating filter equipment that this application provided to carry out filtration treatment to sewage and can effectively avoid filter equipment to block up, and need not to dismantle the clearance to filter equipment, have higher sewage treatment efficiency.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims

1. A circulating filter apparatus, comprising:

2. The circulating filtration apparatus of claim 1, wherein the cleaning assembly comprises:

the cleaning roller is connected with the end part of one side of the frame, which is far away from the driving shaft, in a rotating manner, the cleaning roller is horizontally arranged and is parallel to the driven shaft, the cleaning roller is in transmission connection with the driven shaft through a gear set, and the direction of rotation of the cleaning roller is the same as that of the driven shaft;

and the cleaning felt covers the circumferential surface of the cleaning roller and is at least partially contacted with the water filtering membrane of the filter belt.

3. The circulating type filtering device according to claim 2, wherein the gear set comprises a first gear sleeved on one side end of the driven shaft, a second gear sleeved on one side end of the cleaning roller, and a third gear arranged between the first gear and the second gear, and the third gear is meshed with the first gear and the second gear respectively.

4. The circulating type filtering device according to claim 1, further comprising an oxygen increasing assembly, wherein the oxygen increasing assembly comprises an oxygen increasing machine and an oxygen increasing pipe communicated with an air outlet of the oxygen increasing machine, a bottom plate is fixedly connected to the bottom of the oxygen increasing machine, and the bottom plate is fixedly connected to the bottom of the sedimentation tank; one end of the oxygenation pipe, which is far away from the oxygenation machine, is connected with a drain pipe.

5. The circulating filter device according to claim 1, wherein the frame further comprises two water baffles arranged symmetrically, the bottoms of the water baffles are fixedly connected with two sides of the frame perpendicular to the driving shaft or the driven shaft, and the tops of the water baffles are inclined towards one side far away from the frame.

6. The circulating filtration device of claim 1, further comprising a support assembly for supporting the filter belt, the support assembly being disposed within the inner ring of the filter belt, the support assembly comprising a plurality of first support plates and a second support plate; the first supporting plate is horizontally arranged, and two ends of the first supporting plate are respectively fixedly connected with two side edges of the frame, which are perpendicular to the driving shaft or the driven shaft; the length direction of the second supporting plate is perpendicular to that of the first supporting plate, and the bottom surface of the second supporting plate is fixedly connected with the top surface of the first supporting plate.

7. The circulating-type filtration apparatus according to claim 1, wherein the water filtration membrane is a cellulose ester porous membrane.