CN103272428A - Biogas slurry filter - Google Patents

Abstract

The invention discloses a biogas slurry filter, which belongs to liquid filtering mechanical supplies, in particular to a biogas slurry filter for separating biogas slurry produced by a biogas tank. The biogas slurry filter includes a base, a shell installed on the base and a power device. The front end of the shell is provided with a biogas slurry input pipe, the lower part of the rear end is provided with a biogas residue discharge pipe, and the base is provided with a biogas residue discharge pipe. A hollow rotating cylinder is installed on the rotating shaft in the center of the sieve, and at least two long scrapers with an oblique angle of 8-12° to the axis of the rotating cylinder are inlaid around the rotating cylinder and a brush with bristles is inlaid on the top surface The plate, the top surface of the elongated scraper and the bristles on the brush plate rest against the filter screen. It solves the defect that the biogas slurry separator must be stopped periodically in order to remove the biogas residue and straw coarse fibers attached to the cylindrical filter screen in the prior art, and the biogas slurry produced by the biogas tank can be continuously Filter biogas slurry suitable for spraying fertilizer on crop leaves to improve work efficiency.

Description

A biogas slurry filter

technical field

The invention belongs to a mechanical product for liquid filtration, in particular to a biogas slurry filter for separating biogas slurry produced by a biogas tank.

Background technique

Use clean biogas slurry and clear water to spray fertilizer on the crop leaves with a sprayer in a certain proportion, and the effect of increasing production is very obvious. To use clean biogas slurry, it is necessary to filter out the biogas residue and straw crude fiber present in the biogas slurry, otherwise the biogas residue and straw coarse fiber will block the nozzle of the sprayer and affect the use of the biogas slurry as crop foliar fertilizer. At present, the separation of biogas slurry mostly adopts screening method or extrusion method, but the common disadvantages are complex structure, high equipment cost, inconvenient maintenance, and troublesome replacement of mesh screen. CN 202446903U discloses a biogas slurry solid-liquid separation device, although the structure is simple, the cost is low, the maintenance is convenient, the separation effect is good, and the fineness is controllable. However, in the process of filtering the biogas slurry, since there are still biogas residues and straw crude fibers in the settled biogas slurry, it is easy to block the screen of the separation device. When people remove these biogas residues and straw crude fibers attached to the screen It is necessary to periodically stop the work of the biogas slurry solid-liquid separation device, so that the biogas slurry filtration work cannot be carried out continuously.

Contents of the invention

In order to overcome the shortcomings of existing biogas slurry separation equipment that biogas residues and crude straw fibers are easy to block the screen of the separation device, and it is necessary to periodically stop the solid-liquid separation of biogas slurry to clean the screen, the present invention provides a biogas slurry filter Machine, the biogas slurry filter can not only achieve solid-liquid separation of biogas slurry, but also can clean the screen at any time to achieve long-term continuous work.

The technical solution adopted by the present invention to solve the technical problem is: a biogas slurry filter, including a base, a shell installed on the base and a power device. The front end of the shell is provided with a biogas slurry input pipe, and the lower part of the rear end is provided with biogas residue Discharge pipe, biogas residue discharge pipe is set on the base, filter screen fixing rings are fixed on the inside of the front support plate and rear support plate installed in the shell, and filter screen fixing rings are installed on both sides of the support frame in the middle of the shell. The mesh screen is installed in the fixed ring of the filter screen, and a hollow rotating cylinder is installed on the rotating shaft in the center of the filter screen, and at least two strip-shaped scrapers and at least two hairs with manes on the top surface are inlaid on the periphery of the rotating cylinder. The brush plate is characterized in that: the strip-shaped scraper and the brush plate are arranged with spiral plates at equidistant intervals around the rotating cylinder, and form an oblique angle of 8 to 12° with the axis of the rotating cylinder. The top surface of the shaped scraper and the bristles on the brush plate rest against the strainer screen.

The oblique angle between the strip-shaped scraper and the brush plate and the axis of the rotating cylinder is 10°.

The top surface of the elongated scraper is arc-shaped.

The filter screen is 80-120 mesh plastic mesh or stainless steel mesh.

The biogas slurry inlet of the biogas slurry discharge pipe is funnel-shaped.

The filter screen is 100 mesh plastic mesh or stainless steel mesh.

The method of using the biogas slurry separator is: when the biogas slurry that has been naturally deposited in the two-stage cement pond is input into the cylindrical 80-120 mesh filter screen through the open biogas slurry input pipe, the rotating cylinder of the power device is started to drive the long The strip scraper and the brush plate rotate to clean the biogas residue and the coarse fibers of the biogas residue continuously attached to the filter screen during the filtration process with the brush of the brush plate. The axis of the rotating cylinder is at an inclination angle of 8-12°, and the long strip scraper and the brush plate can push the biogas residue and the coarse fiber of the biogas residue attached to the filter screen to the end of the filter screen at the same time It is discharged to the biogas residue discharge pipe, and the filtered biogas slurry is discharged through the funnel-shaped biogas slurry discharge pipe and can be collected in a plastic bucket for use.

The beneficial effect of the present invention is to provide a biogas slurry filter that can clean the biogas residue and the thick fibers of the biogas residue attached to the filter screen at any time, and can continuously filter the biogas slurry, which solves the problem of removing these attached biogas residues in the prior art. Due to the defects of biogas residue and straw coarse fiber sieved by the cylindrical filter, the biogas slurry separator must be stopped periodically, and the biogas slurry produced by the biogas digester can be continuously filtered into biogas suitable for crop foliar fertilizer spraying. Liquid, improve work efficiency, expand the application range of biogas slurry.

Description of drawings

Fig. 1 is a structural representation of the present invention,

Fig. 2 is a view along the line A-A of Fig. 1 .

In the figure, 1. Base, 2. Shell, 3. Front support plate, 4. Support frame, 5. Rear support plate, 6. Filter fixing ring, 7. Round hole, 8. Bearing, 9. Rotating shaft, 10 .Rotating cylinder, 11. Strip scraper, 12. Brush plate, 13. Biogas slurry input pipe, 14. Biogas residue discharge pipe, 15. Electric motor, 16. Reduction device, 17. Transmission device, 18. Driven wheel , 19. Biogas slurry discharge pipe, 20. Filter screen.

Detailed ways

The specific embodiment of the present invention is, as shown in the figure:

Embodiment 1, a kind of biogas slurry filter, comprises base 1 and shell 2 installed on the base and the power device that is made up of motor 15, deceleration device 16, transmission device 17, and the front end of shell is provided with biogas slurry input pipe 13, The lower part of the rear end is provided with a biogas residue discharge pipe 14, and the base is provided with a biogas residue discharge pipe 19. The inner side of the front support plate 3 and the rear support plate 5 installed in the shell is fixed with a filter screen fixing ring 6, and the support in the middle of the shell Filter screen fixing ring 6 is equipped with on both sides of frame 4, and filter screen 20 is installed in the filter screen fixing ring, and hollow rotating cylinder 10 is installed on the rotating shaft 9 of filter screen center, and the periphery of rotating cylinder is inlaid with at least two The elongated scraper 11 and at least two brush plates 12 with bristles inlaid on the top surface are characterized in that: the elongated scraper and the brush plate are arranged with spiral plates equidistantly around the periphery of the rotating cylinder, and It forms an oblique angle of 8-12° with the axis of the rotating cylinder, and the top surface of the strip-shaped scraper and the bristles on the brush plate lean against the filter screen. Rotating shaft two ends are installed in the circular hole 7 of front and back support plate by bearing 8. The filter screen is 80-120 mesh plastic mesh or stainless steel mesh. The biogas slurry inlet of the biogas slurry discharge pipe is funnel-shaped

Embodiment 2, a biogas slurry filter, including a base 1 and a housing 2 installed on the base and a power device composed of a motor 15, a reduction gear 16, and a transmission device 17. The front end of the housing is provided with a biogas slurry input pipe 13, The lower part of the rear end is provided with a biogas residue discharge pipe 14, and the base is provided with a biogas residue discharge pipe 19. The inner side of the front support plate 3 and the rear support plate 5 installed in the shell is fixed with a filter screen fixing ring 6, and the support in the middle of the shell Filter screen fixing ring 6 is equipped with on both sides of frame 4, and filter screen 20 is installed in the filter screen fixing ring, and hollow rotating cylinder 10 is installed on the rotating shaft 9 of filter screen center, and the periphery of rotating cylinder is inlaid with at least two The elongated scraper 11 and at least two brush plates 12 with bristles inlaid on the top surface are characterized in that: the elongated scraper and the brush plate are arranged with spiral plates equidistantly around the periphery of the rotating cylinder, and It forms an oblique angle of 10° with the axis of the rotating cylinder, and the top surface of the strip-shaped scraper and the bristles on the brush plate lean against the filter screen. Rotating shaft two ends are installed in the circular hole 7 of front and back support plate by bearing 8. The top surface of the elongated scraper is arc-shaped. The biogas slurry inlet of the biogas slurry discharge pipe is funnel-shaped. The filter screen is 100 mesh stainless steel mesh.

Claims (6)

1. A biogas slurry filter, including a base, a housing mounted on the base, and a power unit. The front end of the housing is provided with a biogas slurry input pipe, the lower part of the rear end is provided with a biogas residue discharge pipe, and the base is provided with a biogas residue discharge pipe. , the inner side of the front support plate and the rear support plate installed in the shell is fixed with filter screen fixing rings, and the two sides of the support frame in the middle of the shell are equipped with filter screen fixing rings, and the filter screen is installed in the filter screen fixing ring. A hollow rotating cylinder is installed on the rotating shaft in the center of the mesh screen, and at least two strip-shaped scrapers and at least two brush plates with bristles inlaid on the top surface are inlaid around the rotating cylinder, and the characteristics are: the long The strip-shaped scraper and the brush plate are arranged with spiral plates at equal intervals around the rotating cylinder, and form an oblique angle of 8 to 12° with the axis of the rotating cylinder. The top surface of the strip-shaped scraper and the brush plate The bristles rest against the strainer screen. 2. A biogas slurry filter according to claim 1, characterized in that: the oblique angle between the strip-shaped scraper and the brush plate and the axis of the rotating cylinder is 10°. 3. A biogas slurry filter according to claim 1 or 2, characterized in that: the top surface of the elongated scraper is arc-shaped. 4. A biogas slurry filter according to claim 1, characterized in that: said filter screen is 80-120 mesh plastic mesh or stainless steel mesh. 5. A biogas slurry filter according to claim 1, characterized in that: the biogas slurry inlet of the biogas slurry discharge pipe is funnel-shaped. 6. A biogas slurry filter according to claim 1, characterized in that: said filter screen is 100-mesh plastic mesh or stainless steel mesh.

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