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Biodegradable filter material biogas slurry filter and filtering method thereof

A filtration method and filter technology, applied in chemical instruments and methods, filtration separation, separation methods, etc., can solve the problems of frequent backwashing of filter materials, cumbersome replacement of filter materials, poor applicability of filters, etc., and achieve structural Simple, Inexpensive Acquisition, Accessible Effects

Active Publication Date: 2015-09-23
成都中农能源环境工程设计所有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of this patented technology is: when the filter is used for biogas slurry filtration, due to the accumulation of microorganisms in the biogas slurry on the filter material, the backwashing of the filter material must be frequent, and when the backwashing effect is not good, only The filter material can be taken out for cleaning, but the structure of the filter makes it cumbersome to remove and replace the filter material
The main problem of this patented technology is that the filter does not have a slag outlet, and all suspended solids are accumulated on the filter material. Although the filter material is easy to take out for cleaning or replacement, the filter must require frequent manual intervention during the working process. The applicability of the filter is not strong

Method used

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  • Biodegradable filter material biogas slurry filter and filtering method thereof
  • Biodegradable filter material biogas slurry filter and filtering method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A biogas slurry filter with degradable filter material, comprising a box body 1, the top of the box body 1 is provided with a floating filter material filling port 10 and a fixed filter material filling port 12, the middle part is provided with a liquid inlet 7, and the bottom part is provided with a There is a slag outlet 9; the liquid inlet 7 divides the inner cavity of the box body 1 into a floating filter material chamber 4 at the upper part of the liquid inlet and a sedimentation chamber 6 at the lower part of the liquid inlet. The floating filter material chamber 4 is provided with a floating filter material, the slag outlet 9 communicates with the sedimentation chamber 6, the floating filter material filling port 10 communicates with the floating filter material chamber 4; the fixed filter material filling port 12 communicates with the floating filter material chamber 4 through the fixed filter material chamber 5, and communicates A grid 2 is arranged at the place...

Embodiment 2

[0044] This embodiment is basically the same as the previous embodiment, the main difference is:

[0045] The ribs 3 are annular ribs, distributed in at least 4 layers in the floating filter material chamber 4, and the spacing is three times the width of the ribs 3. The width dimension of the rib plate 3 is 1 / 5 of the width of the box body. The volume of the floating filter material chamber 4 is 1 / 3 of the box volume; the volume of the sedimentation chamber 6 is 2 / 3 of the box volume; the volume of the fixed filter material chamber 5 is 1 / 50 of the box volume.

[0046] In this embodiment, the degradable filter material used has the characteristics of being able to settle and discharge out of the filter. It only needs to be regularly replenished according to the consumption of the filter material to run stably for a long time, and the quality of the filtered biogas slurry is stable and controllable.

Embodiment 3

[0048] This embodiment is basically the same as the previous embodiment, the main difference is:

[0049] The ribs 3 are annular ribs, distributed in at least 5 layers in the floating filter material chamber 4, and the spacing is 6 times of the width of the ribs 3 . The width dimension of the rib 3 is 1 / 50 of the width of the box body 1 . The volume of the floating filter chamber 4 is 2 / 3 of the volume of the casing 1; the volume of the sedimentation chamber 6 is 1 / 3 of the volume of the casing 1; the volume of the fixed filter chamber 5 is 1 / 300 of the volume of the casing 1 .

[0050] In this embodiment, each parameter is related to each other, and the change of one parameter will lead to the change of other parameters. Since there are many related parameters, it is impossible to obtain it through a limited number of tests, especially the relevant parameters of the ribs can ensure that the filter floats The water flow in the filter chamber is not short-circuited.

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Abstract

The invention discloses a degradable filter material biogas slurry filter and a filtering method of the degradable filter material biogas slurry filter. The degradable filter material biogas slurry filter comprises a box body, wherein a floating filter material filling hole and a fixed filter material filling hole are formed at the top of the box body, a liquid inlet is formed at the middle part of the box body, and a slag hole is formed at the bottom of the box body; the liquid inlet divides the inner cavity into a floating filter material chamber at the upper part of the liquid inlet and a sedimentation chamber at the lower part of the liquid inlet, a floating filter material is arranged inside the floating filter material chamber, the slag hole is communicated with the sedimentation chamber, and the floating filter material filling hole is communicated with the floating filter material chamber; and the fixed filter material filling hole is communicated with the floating filter material chamber by virtue of the fixed filter material chamber, a grid is arranged at a communication part, a fixed filter material is arranged inside the fixed filter material chamber, and the fixed filter material chamber is connected with a liquid outlet. By adopting the degradable filter material biogas slurry filter, flushing and back washing are not needed, the degradable filter material biogas slurry filter can stably operate for a long time while a filter material is supplemented periodically, and quality of filtered clear solution is stable and controllable.

Description

technical field [0001] The invention relates to the field of filter equipment, in particular to a biogas slurry filter with degradable filter material and a filtering method thereof. Background technique [0002] Existing biogas projects pursue gas production efficiency, the fermentation concentration is high, and the output biogas slurry is viscous and has high suspended solids, so it is not suitable for direct application as organic fertilizer. Such biogas slurry can be used as biogas slurry fertilizer for sprinkler irrigation and drip irrigation after filtering suspended solids through biogas slurry filtration equipment. However, the existing biogas slurry filtration equipment has low applicability and cannot achieve long-term stable production. However, a large amount of biogas slurry cannot be used as fertilizer, which will inhibit the operation of the biogas project and cause serious pollution. [0003] Currently commonly used biogas slurry filtration equipment mainly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D36/04
Inventor 杜毓辉施国中梅自力
Owner 成都中农能源环境工程设计所有限责任公司
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