Direct brush type multi-stage filter for livestock and poultry wastewater

Abstract

The utility model provides a livestock and poultry wastewater direct brush type multistage filter which comprises a shell, a filtering device comprises a filtering barrel and a rotating shaft, the filtering barrel is sealed through a left end cover and a right end cover, filtering holes are formed in the side wall of the filtering barrel, a water inlet pipe is arranged on the right side of the filtering barrel located on the innermost side, and a water outlet pipe is arranged on the rotating shaft. Driving pieces used for driving the rotating shaft to rotate are arranged on the left side and the right side of the shell, a splash-proof baffle is arranged on the left side of the filtering barrel, the waste liquid collecting section comprises a water storage tank and a filtering hopper, a filtering plate is arranged below the filtering hopper, and a residue discharging structure is arranged in the shell; the livestock and poultry wastewater is filtered by the multiple filter barrels, multi-stage treatment is achieved, the wastewater treatment effect is better, filter residues in the filter barrels can be conveniently discharged through the residue discharging structures, the inner walls of the filter barrels can be cleaned, and filter holes in the filter barrels are prevented from being blocked; the filter material is drained through the filter plate below the filter hopper, so that the filter material is convenient to collect and treat, the content of suspended matters in effluent in the livestock and poultry wastewater subjected to multi-stage filtration is 200-300mg / L, and the treatment effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of wastewater treatment, especially to a livestock and poultry wastewater direct-brushing type multistage filter. BACKGROUND

[0002] Livestock and poultry wastewater is the main pollutant of the surrounding environment pollution of livestock and poultry farms, and the pollution of large farms is very serious, and the pollution of small farms and even individual farmers is the main factor leading to the surrounding environmental pollution.

[0003] Livestock and poultry breeding wastewater mainly includes livestock excrement, cage flushing water, pipeline flushing water and the like. In livestock and poultry wastewater, the suspended solids are often high (the SS content in pig breeding wastewater is about 10,000, the SS content in cattle breeding wastewater is as high as tens of thousands, and the suspended solids content in poultry breeding wastewater is relatively low, generally below 10,000). High suspended solids are not conducive to the subsequent biochemical treatment of wastewater, so in the wastewater pretreatment process, the suspended solids need to be removed as much as possible. At present, the methods for removing suspended solids include filtration and adding a large amount of flocculating agent for sedimentation.

[0004] Among them, adding flocculating agent for sedimentation requires a large amount of flocculating agent, which is high in cost.

[0005] At present, people generally use activated carbon, quartz sand, ceramic particles and the like as filter material for filtration. If direct filtration occurs, the filter material pore blockage is prone to occur. The filter material filtration method has certain disadvantages in practical application, such as high cost, repeated washing, possible secondary pollution, need to be replaced regularly, and cannot be resource utilization, and the like. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a livestock and poultry wastewater direct-brushing type multistage filter, which is provided with multiple filter barrels for filtration, and the filtration effect is better. At the same time of filtration, the discharge of filter residue can be realized, and the plugging of filter holes is reduced.

[0007] The utility model discloses a technical scheme for a livestock and poultry wastewater direct brushing type multistage filter, which comprises a shell, the upper part of the shell is a filtering section, the lower part is a waste liquid collecting section, a filtering device is horizontally arranged in the filtering section, the filtering device comprises at least two filtering barrels and a rotating shaft that horizontally passes through the filtering barrels, the left and right sides of all the filtering barrels are respectively closed by left end covers and right end covers, the right end cover is fixedly connected with the rotating shaft, the left end cover is rotatably connected with the rotating shaft through a bearing sleeve, a filtering hole is formed in the sidewall of each filtering barrel, the hole diameter of the filtering hole gradually decreases from inside to outside according to the order of the filtering barrels, a water inlet pipe is arranged on the right side of the innermost filtering barrel, and the water inlet pipe is fixed on the rotating shaft.

[0008] As a preferred solution of the above-mentioned scheme, the number of the filtering barrels is three, and the filtering barrels are sequentially arranged on the rotating shaft from inside to outside.

[0009] Further preferably, an annular fixing plate for connecting with the filtering barrels is arranged on the left end cover, the number of the annular fixing plates is consistent with the number of the filtering barrels, and an annular groove matched with the annular fixing plate is arranged on the left end of the filtering barrel.

[0010] Further preferably, the slag removal structure comprises a rotating screw thread arranged on the inner wall of the filtering barrel and a fixing rod arranged in the shell and matched with the filtering barrel, a slag removal opening is arranged on the left end cover for each layer of the filtering barrels, all the slag removal openings are arranged above the filter hopper, a horizontally extending brush rod is arranged on the fixing rod corresponding to each filtering barrel, the brush rod respectively penetrates the left end cover and extends into each filtering barrel, and a brush for cleaning the inner wall of the filtering barrel is arranged on the brush rod, and a perforation matched with the brush rod is arranged on the left end cover.

[0011] Further preferably, a water outlet pipeline is arranged below the water storage tank.

[0012] Further preferably, the filter hopper is arranged above the left side of the water storage tank.

[0013] Further preferably, a material storage tank for storing filter material is arranged on the left side of the filter hopper.

[0014] Further preferably, the filtering barrel has a shape of a circular truncated cone structure with a smaller left end diameter than a right end diameter.

[0015] The utility model discloses beneficial effect: set up multiple coaxial filter vat to filter livestock and poultry wastewater, and the filtrate of inside filter vat processing enters into the filter vat of outside, realizes multistage processing, and intercepts suspended matter through multistage filtration, and the suspended matter removal effect is better, set up the residue ejection structure in the filter vat, and the residue ejection structure is convenient for the residue ejection of filter vat, and can clean the inner wall of filter vat, avoid the filter hole block -up in filter vat, residue enters into the filter hopper from the filter vat, and the filter material is drenched through the filter plate below filter hopper, and the water content in filter material reduces, and the collection processing of filter material is convenient, and the content of suspended matter in the effluent in livestock and poultry wastewater after multistage filtration of the utility model can reduce to 200~300mg / L, and the processing effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model.

[0017] Figure 2 It is the structure schematic diagram of filter cylinder and left end cover in the utility model Figure One .

[0018] Figure 3 It is the structure schematic diagram of filter cylinder and left end cover in the utility model Figure Two . DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings and examples.

[0020] As Figures 1-3 Shown: a livestock and poultry wastewater direct brush formula multistage filter, including the casing 1, the casing 1 upper part is filter section, and the lower part is waste liquid collection section, and the filter section is transversely provided with filter device, and the filter device includes at least two filter vat 2 and the rotating shaft 3 transversely through filter vat 2, and the left and right sides of all filter vat 2 are closed through left end cover 13 and right end cover 14 respectively, and right end cover 14 is fixedly connected with rotating shaft 3, and left end cover 13 is rotatably connected on rotating shaft 3 through bearing sleeve, and the sidewall of each filter vat 2 is all opened to filter hole, and the aperture of filter hole gradually reduces according to the sequence from inside to outside of filter vat 2, and the right side of the innermost filter vat 2 is provided with water inlet pipe, can be set on bearing through bearing sleeve, and water inlet pipe is connected on bearing sleeve, and the water inlet end passes through right end cover 14 and arranges waste water into the filter vat 2 in the middle.

[0021] The water inlet pipe is fixed on the rotating shaft 3, and the shell 1 is provided with a fixed base 4 on the left and right sides for connecting the rotating shaft 3. The right fixed base 4 is provided with a driving member 5 for driving the rotating shaft 3 to rotate. The filter barrel 2 is provided with a splash-proof baffle 6 on the left side. The waste liquid collection section includes a water storage tank 7 arranged below the filter device and a filter hopper 8 arranged below the left side of the splash-proof baffle 6. The filter hopper 8 is arranged above the left side of the water storage tank 7. A water outlet pipe 11 is arranged below the water storage tank 7. A material storage tank 12 is arranged on the left side of the filter hopper 8 for storing filter material. The filter material is collected through the material storage tank 12 and the filter hopper 8, which is more convenient. A filter plate is arranged below the filter hopper 8, and a slag discharge structure is arranged in the shell 1. The waste slag in the filter barrel 2 is discharged to the filter hopper through the slag discharge structure.

[0022] The number of filter barrels 2 is three, which are sequentially arranged on the rotating shaft 3 from inside to outside. Multiple filter barrels 2 are arranged to form multi-stage filtration, which can improve the filtering effect and ensure that the content of suspended solids in the filtrate meets the standard.

[0023] The left end cover 13 is provided with an annular fixing plate 15 for connecting with the filter barrel 2. The number of annular fixing plates 15 is consistent with the number of filter barrels 2. The left end of the filter barrel 2 is provided with an annular groove 16 matched with the annular fixing plate 15. The annular fixing plate 15 is arranged on the left end cover 13, and the annular groove 16 matched with the annular fixing plate 15 is arranged on the left end of the filter barrel 2, so that the left end cover 13 is installed on the filter barrel 2. During the rotation of the rotating shaft 3, the filtrate will not leak from the left side of the filter barrel 2. The brush rod 18 penetrates through the left end cover 13. During the rotation of the rotating shaft 3, the left end cover 13 is fixed. At this time, due to the connection between the annular fixing plate 15 and the annular groove 16, the swing of the filter barrel 2 during rotation can be avoided, and the stability of the filter barrel 2 is increased.

[0024] The slagging structure comprises a rotating thread 17 arranged on the inner wall of the filter barrel 2 and a fixed rod 9 arranged in the shell 1 and matched with the filter barrel 2, and the left end cover is provided with a slagging port 20 for each layer of filter barrel 2, all the slagging ports 20 are located above the filter hopper 8, and the slag discharged from the slagging ports 20 directly falls into the filter hopper, the fixed rod 9 is provided with a horizontally extending brush rod 18 corresponding to each filter barrel 2, the brush rod 18 respectively penetrates into each filter barrel 2 through the left end cover 13, and the brush rod 18 is provided with a brush 10 for cleaning the inner wall of the filter barrel 2, and the left end cover 13 is provided with a perforation 19 matched with the brush rod 18. The left end cover 13 is inserted into the annular groove 16 through the annular fixed plate 15 and connected with the rotating shaft 3 through a bearing sleeve, the brush rod 18 is inserted into the left end cover 13 and extends into the filter barrel 2, in the process that the rotating shaft 3 drives the filter barrel 2 to rotate, the brush rod 18 and the left end cover 13 are fixed, the brush 10 is in contact with the inside of the filter barrel 2, the filter residues on the inner wall of the filter barrel 2 are brushed down, the inner wall of the filter barrel 2 is cleaned, and the filter barrel 2 is prevented from being blocked. The filter barrel 2 is in the shape of a circular truncated cone structure with a smaller left end diameter than a right end diameter. The circular truncated cone filter barrel 2 facilitates the movement of the filter residues in the rotating thread 17 and facilitates the collection.

[0025] The plurality of coaxial filter barrels 2 are arranged to filter livestock and poultry wastewater, the filtrate treated by the inner filter barrel 2 enters the outer filter barrel 2, multi-stage treatment is realized, suspended matters are intercepted through multi-stage filtration, and the removal effect of the suspended matters is better. The slagging structure is arranged in the filter barrel 2, the filter residues in the filter barrel 2 are conveniently discharged, the inner wall of the filter barrel 2 can be cleaned, and the filter holes in the filter barrel 2 are prevented from being blocked. The filter residues enter the filter hopper 8 from the filter barrel 2, the filter materials are drained through the filter plate below the filter hopper 8, the water content in the filter materials is reduced, the collection and treatment of the filter materials are facilitated, the content of the suspended matters in the effluent in the livestock and poultry wastewater filtered through the multi-stage filter can be reduced to 200-300 mg / L, and the treatment effect is good.

[0026] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A direct-brush multi-stage filter for livestock and poultry wastewater, characterized in that: The system includes a housing (1), the upper part of which is a filtration section and the lower part is a waste liquid collection section. A filtration device is arranged horizontally inside the filtration section. The filtration device includes at least two filter barrels (2) and a rotating shaft (3) that passes horizontally through the filter barrels (2). The left and right sides of all filter barrels (2) are closed by a left end cover (13) and a right end cover (14) respectively. The right end cover (14) is fixedly connected to the rotating shaft (3), and the left end cover (13) is rotatably connected to the rotating shaft (3) through a bearing sleeve. Each filter barrel (2) has a filter hole on its side wall. The diameter of the filter hole decreases sequentially from the inside to the outside of the filter barrel (2). The innermost filter barrel (2) has the smallest diameter. 2) A water inlet pipe is provided on the right side and the water inlet pipe is fixed on the rotating shaft (3). The housing (1) is provided with a fixed base (4) for connecting the rotating shaft (3) on the left and right sides. The fixed base (4) on the right side is provided with a driving component (5) for driving the rotating shaft (3) to rotate. A splash guard (6) is provided on the left side of the filter bucket (2). The waste liquid collection section includes a water storage tank (7) provided below the filter device and a filter hopper (8) provided below the left side of the splash guard (6). A filter plate is provided below the filter hopper (8). A slag discharge structure is provided inside the housing (1). The waste slag in the filter bucket (2) is discharged into the filter hopper (8) through the slag removal structure.

2. The direct-brush multi-stage filter for livestock and poultry wastewater according to claim 1, characterized in that: The number of filter barrels (2) is three, which are sequentially fitted onto the rotating shaft (3) from the inside to the outside.

3. A direct-brush multi-stage filter for livestock and poultry wastewater according to claim 2, characterized in that: The left end cap (13) is provided with an annular fixing plate (15) for connecting with the filter barrel (2). The number of the annular fixing plates (15) is the same as the number of filter barrels (2). The left end of the filter barrel (2) is provided with an annular groove (16) that matches the annular fixing plate (15).

4. A direct-brush multi-stage filter for livestock and poultry wastewater according to claim 3, characterized in that: The slag discharge structure includes a rotating thread (17) on the inner wall of the filter barrel (2) and a fixed rod (9) matching the filter barrel (2) in the housing (1). The left end cover is provided with a slag discharge port (20) for each layer of filter barrel (2). All slag discharge ports (20) are located above the filter hopper (8). The fixed rod (9) is provided with a horizontally extending brush rod (18) corresponding to each filter barrel (2). The brush rod (18) passes through the left end cover (13) and extends into each filter barrel (2). A brush (10) for cleaning the inner wall of the filter barrel (2) is provided on the brush rod (18). The left end cover (13) is provided with a perforation (19) matching the brush rod (18).

5. A direct-brush multi-stage filter for livestock and poultry wastewater according to claim 1, characterized in that: A water outlet pipe (11) is provided below the water storage tank (7).

6. A direct-brush multi-stage filter for livestock and poultry wastewater according to claim 3, characterized in that: The filter hopper (8) is located on the upper left side of the water storage tank (7).

7. A direct-brush multi-stage filter for livestock and poultry wastewater according to claim 1, characterized in that: A storage tank (12) for storing filter media is provided on the left side of the filter media hopper (8).

8. A direct-brush multi-stage filter for livestock and poultry wastewater according to claim 1, characterized in that: The filter barrel (2) is a frustum-shaped structure with a left port diameter smaller than the right port diameter.

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