CN213707865U

CN213707865U - Novel high-efficient filter material structure

Info

Publication number: CN213707865U
Application number: CN202021160642.5U
Authority: CN
Inventors: 顾忠
Original assignee: Zhejiang Poly Environment Technology Co ltd
Current assignee: Zhejiang Poly Environment Technology Co ltd
Priority date: 2020-06-20
Filing date: 2020-06-20
Publication date: 2021-07-16
Anticipated expiration: 2030-06-20

Abstract

The utility model discloses a novel high-efficiency filter material structure, which comprises a ceramsite filter layer, a volcanic rock filter layer and a middle calandria, wherein the ceramsite filter layer comprises an upper ceramsite layer and a lower ceramsite layer which are filled with ceramsite filter materials with different particle sizes, the upper ceramsite layer is designed into a large-particle-size ceramsite filter material which is used for improving the pollutant carrying capacity of a filter tank and prolonging the periodic operation time of the filter tank, and the lower ceramsite layer is designed into a small-particle-size ceramsite filter material which is used for increasing the specific surface area of the filter material, thereby improving the attached nitrifying bacteria biomass and improving the ammonia nitrogen removal rate; volcanic rock filtering layer sets up in last haydite layer and down between the haydite layer, go up haydite layer, lower haydite layer and volcanic rock filtering layer and all wrap up through the base cloth layer outward, the support frame that the wave set up is personally submitted to two sides about all being provided with between volcanic rock filtering layer and last haydite layer and the lower haydite layer, well calandria is located the support frame, and offers the aperture on the pipe wall, this structural design is reasonable, low in production cost, excellent in operation effect, nontoxic harmless, life is longer.

Description

Novel high-efficient filter material structure

Technical Field

The utility model relates to a sewage treatment technical field, in particular to novel high-efficient filter material structure.

Background

The filter material structure is a main and important component of the biological aerated filter, the biological aerated filter has the advantages of good effluent quality, short hydraulic retention time, small occupied area, low investment and operating cost, strong impact load resistance, convenient management and the like, is a novel environment-friendly, economic, efficient and energy-saving sewage treatment technology, can realize the regeneration and continuous utilization of water resources, and is very suitable for the current situations of water resource shortage, insufficient funds and relatively backward technology in the field of sewage treatment.

The filter material structure comprising the biological membrane carrier is a core element of the operation effect of the biological aerated filter, and the filter material structure has important influence on the growth and the falling of microorganisms. In China, the biological aerated filter is in a popularization stage, and the research on the structure of a filter material is a key for the wide-range application of the biological aerated filter in China. Therefore, a filter material structure of a biological pond with reasonable design, high operation efficiency and good effect is required to be continuously provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and aims to provide a ceramsite filter material structure of a sewage treatment biofilter, which has the advantages of reasonable design, low production cost, good operation effect, no toxicity, no harm and longer service life.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a novel high-efficiency filter material structure comprises a ceramsite filter layer, a volcanic rock filter layer and a middle discharge pipe, wherein the ceramsite filter layer comprises an upper ceramsite layer and a lower ceramsite layer which are filled with ceramsite filter materials with different particle sizes, the upper ceramsite layer is designed into a large-particle-size ceramsite filter material which is used for improving the pollutant carrying capacity of a filter tank and prolonging the period operation time of the filter tank, and the lower ceramsite layer is designed into a small-particle-size ceramsite filter material which is used for increasing the specific surface area of the filter material, so that the biomass of attached nitrobacteria is improved, and the removal rate of ammonia nitrogen is improved; the volcanic rock filter layer sets up in last haydite layer and down between the haydite layer, go up haydite layer, down haydite layer and volcanic rock filter layer and all wrap up through the base cloth layer outward, the support frame that the wave set up is personally submitted to the two sides about all being provided with between volcanic rock filter layer and last haydite layer and the lower haydite layer, well calandria is located the support frame, and offers the aperture on the pipe wall.

More preferably: the diameter of the filter material of the upper ceramsite layer, the lower ceramsite layer and the volcanic rock filter layer is designed to be gradually reduced, the upper ceramsite layer is oval with the diameter of 12-14mm, the volcanic rock filter layer is spherical with the diameter of 9-12mm, and the lower ceramsite layer is spherical with the diameter of 6-10 mm.

More preferably: the base cloth layer is a spun-bonded non-woven fabric prepared from one or more fiber filaments by a spun-bonding method, and the gram weight of the base cloth layer is 120-180g/m 2.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does: sewage enters an upper ceramsite layer falling on large particles through the upper part of the filter tank, primary filtration is carried out, aeration is carried out below a lower ceramsite layer, fine particles can still fall down, sequential filtration sequentially passes through a volcanic rock filter layer and the lower ceramsite layer is carried out, the best filter effect is ensured, a base layer cloth can also play a role in filtration, middle drain pipes are arranged between the volcanic rock filter layer and the upper ceramsite layer and between the volcanic rock filter layer and the lower ceramsite layer to be matched with backwashing, and the backwashing efficiency can be improved.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Reference numerals: 1. a volcanic rock filter layer; 2. a ceramsite filtering layer; 21. coating a ceramsite layer; 22. a lower ceramsite layer; 3. a middle calandria; 4. a support frame.

Detailed Description

The following provides a more detailed description of the present invention with reference to the accompanying drawings.

The utility model provides a novel high-efficient filter material structure, refers to fig. 1 and shows, including haydite filtering layer 2, volcanic rock filtering layer 1 and well calandria 3, haydite filtering layer 2 is including last haydite layer 21 and lower haydite layer 22 of loading the different haydite filter materials of particle diameter thickness, goes up haydite layer 21 and designs for being used for improving the pollutant carrying capacity in filtering pond, the large-particle diameter haydite filter material of the cycle operating duration in extension filtering pond, haydite layer 22 designs for being used for increasing the specific surface area of filter material down to improve adnexed nitrobacteria biomass, improve the small-particle diameter haydite filter material of ammonia nitrogen clearance.

The volcanic rock filter layer 1 is arranged between an upper ceramsite layer 21 and a lower ceramsite layer 22, the upper ceramsite layer 21, the lower ceramsite layer 22 and the volcanic rock filter layer 1 are all wrapped by a base cloth layer, the base cloth layer is a spun-bonded non-woven cloth prepared by one or more fiber filaments through a spun-bonding method, the gram weight of the base cloth layer is 120-180g/m2, support frames 4 with upper and lower surfaces arranged in a wave shape are arranged between the volcanic rock filter layer 1 and the upper ceramsite layer 21 as well as between the upper ceramsite layer 22 and the lower ceramsite layer 22, a middle exhaust pipe 3 is positioned in the support frames 4, and small holes are formed in pipe walls of the support frames; specifically, the filter material diameters of the upper ceramsite layer 21, the lower ceramsite layer 22 and the volcanic rock filter layer 1 are designed to be gradually reduced, and the thickness ratio of each layer is 1.5: 1: 1.2, the upper ceramsite layer 21 is oval with the diameter of 12-14mm, the volcanic rock filter layer 1 is spherical with the diameter of 9-12mm, and the lower ceramsite layer 22 is spherical with the diameter of 6-10 mm.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. The utility model provides a novel high-efficient filter material structure, characterized by: the filter comprises a ceramsite filter layer (2), a volcanic rock filter layer (1) and a middle discharge pipe (3), wherein the ceramsite filter layer (2) comprises an upper ceramsite layer (21) and a lower ceramsite layer (22) which are filled with ceramsite filter materials with different particle sizes, the upper ceramsite layer (21) is designed into a large-particle-size ceramsite filter material which is used for improving the pollutant carrying capacity of the filter tank and prolonging the periodic operation time of the filter tank, and the lower ceramsite layer (22) is designed into a small-particle-size ceramsite filter material which is used for increasing the specific surface area of the filter material, so that the biomass of attached nitrifying bacteria is improved, and the ammonia nitrogen removal rate is improved; volcanic rock filtering layer (1) sets up in last ceramsite layer (21) and between lower ceramsite layer (22), go up ceramsite layer (21), down ceramsite layer (22) and volcanic rock filtering layer (1) all wrap up through the base cloth layer outward, volcanic rock filtering layer (1) and last ceramsite layer (21) and down between ceramsite layer (22) all are provided with about both sides personally submit support frame (4) that the wave set up, well calandria (3) are located support frame (4), and set up the aperture on the pipe wall.

2. The novel high efficiency filter material structure of claim 1, wherein: the diameter of the filter material of the upper ceramsite layer (21), the lower ceramsite layer (22) and the volcanic rock filter layer (1) is designed to be gradually reduced, the upper ceramsite layer (21) is oval with the diameter of 12-14mm, the volcanic rock filter layer (1) is spherical with the diameter of 9-12mm, and the lower ceramsite layer (22) is spherical with the diameter of 6-10 mm.