Cylindrical biological deodorization filter tank

Abstract

A cylindrical biological deodorization filter tank is an integrated device composed of three concentric cylindrical containers and composed of a pre-washing area, a flow guide area and a biological filter tank area, the container formed by a central cylinder is the pre-washing area, the container formed by middle circular rings is the flow guide area, and the container formed by the outermost circular rings is the biological filter tank area. The pre-washing area and the flow guide area are separated by a partition plate; the diversion area and the biological filter area are separated by a diversion area side plate; a biological filter outer side partition plate is arranged on the outer side of the biological filter area; a first filler bracket and Pall ring filler are arranged in the pre-washing area, a first spraying pipe network is arranged above the pre-washing area, and a first circulating water tank is arranged at the bottom of the pre-washing area; a second filler bracket and volcanic rock combined filler are arranged in the biofilter area, a second spraying pipe network is arranged above the biofilter area, and a second circulating water tank is arranged at the bottom of the biofilter area; the second circulating pool communicates with the bottom of the diversion area; the bottoms of the first circulating pool and the second circulating pool are respectively connected with a circulating water tank through a circulating pipe network. The deodorization filter is small in occupied area, high in treatment effect and free of secondary pollution.

Description

Technical field:

[0001] The utility model belongs to the technical field of environmental protection, in particular to the technical field of odor treatment, and specifically relates to a novel deodorization process facility. Background technology:

[0002] Biological deodorization is a highly efficient, energy-saving, simple to operate and maintain, and non-secondary pollution treatment measure. Biological deodorization devices can be divided into soil biological filtration tanks, biological filters, and biological trickling filters according to the filler type and the composition of the spray liquid. Among them, soil biological filtration tanks are not suitable for industrial applications due to their large footprint and other problems. The biological trickling filter does not need to replace the filler and has a high pollutant load, so it can be used to treat odors with large gas volumes. The biological trickling filter can be divided into box-type (horizontal) and tower-type (vertical). Although the tower type occupies a small area, it is difficult to transport and has poor air distribution, so it is not suitable for high-concentration odor treatment; while the box-type has uniform air distribution, is not prone to channeling, and has a lower bed pressure, and can treat odors with higher concentrations (>1g / m3). Because the box-type structure is centralized, it is convenient for transportation and application. However, the operation of the bio-trickling filter is easily affected by the properties of the gas, the strain, the physical and chemical properties of the filler, temperature, humidity and other conditions. The operation requirements are high, and the bio-trickling filter needs to add nutrients, and the operation cost is relatively high. At present, the application of bio-trickling filters in the odor treatment of municipal sewage plants is less than that of bio-filters. At present, most of the bio-filters on the market are box-type (horizontal), occupying a large area and having a complex structure. Therefore, there is an urgent need for a bio-filter suitable for treating high-concentration odors, occupying a small area and having a simple structure. Summary of the invention:

[0003] The utility model aims to provide a biological deodorizing device which occupies a small area, has low operating cost, is easy to manage and has strong adaptability.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a cylindrical biological deodorization filter tank. The deodorization filter tank has a cylindrical structure and is composed of a pre-washing area, a diversion area, and a biological filter tank area. The pre-washing area, the diversion area, and the biological filter tank area form an integrated concentric cylinder device composed of three concentric cylindrical containers. The container formed by the central cylindrical barrel is the pre-washing area, the container formed by the middle ring is the diversion area, and the container formed by the outermost ring is the biological filter tank area; the pre-washing area and the diversion area are separated by a partition; the diversion area and the biological filter tank area are separated by a side plate of the diversion area; an outer partition of the biological filter tank is arranged outside the biological filter tank area, the top of the outer partition of the biological filter tank is connected to a gas collection hood, and an exhaust pipe is connected above the gas collection hood; a first packing support and Pall rings are arranged in the pre-washing area, Pall rings are arranged above the first packing support, a first spray pipe network is arranged above the pre-washing area, a first circulating water tank is arranged at the bottom, and an air inlet pipe is inserted into the pre-washing area; a second packing support and volcanic rock composite packing are arranged in the biological filter tank area, volcanic rock composite packing is arranged above the second packing support, a second spray pipe network is arranged above the biological filter tank area, and a second circulating water tank is arranged at the bottom; a diversion grille is arranged at the bottom of the side plate of the diversion area, and the second circulating water tank is communicated with the bottom of the diversion area through the diversion grille; circulating pipe networks are respectively arranged at the bottoms of the first circulating water tank and the second circulating water tank, and the first circulating water tank and the second circulating water tank are respectively connected to a circulating water tank through the circulating pipe networks.

[0006] The partition is arranged outside the pre-washing area and has a cylindrical structure with a circular cross-section. The partition is not capped at the top, and the distance between the top of the partition and the top plate of the diversion area is 600 - 800 mm.

[0007] The side plate of the diversion area has a cylindrical structure with a circular cross-section. The top of the side plate of the diversion area is capped. The vertical distance between the side plate of the diversion area and the outer partition of the pre-washing area is 600 mm; the height of 600 - 1000 mm at the bottom of the side plate of the diversion area is the diversion grille, and the width of the diversion grille is 50 - 100 mm.

[0008] An outer partition of the biological filter tank with a cylindrical structure having a circular cross-section is arranged outside the biological filter tank area.

[0009] The gas collection hood is narrow at the top and wide at the bottom.

[0010] The first spray pipe network arranged above the pre-washing area is composed of a main spray pipe and branch pipes and is arranged in a circular pattern.

[0011] The second spray pipe network arranged above the biological filter tank area is composed of a main spray pipe and branch pipes and is in a cross shape, surrounding the biological filter tank area in a circle.

[0012] One end of the second spray pipe network passes through the outer partition of the biological filter and is connected to the water pump outside the deodorizing filter box structure. One end of the first spray pipe network passes through the side plate of the diversion area and the outer partition of the biological filter and is connected to another water pump outside the deodorizing filter box structure; the second spray pipe network and the first spray pipe network are respectively supplied with water by the water pump outside the deodorizing filter box structure.

[0013] A liquid level controller is arranged in the diversion area.

[0014] The outer shell of the biological filter outer partition of the deodorizing filter is made of stainless steel material with performance higher than 022Cr19Ni10, and the lining is glass fiber reinforced plastic; the first filler bracket and the second filler bracket are made of glass fiber reinforced resin.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model adopts biological deodorization technology, does not produce secondary pollution, has high and stable treatment effect, and the removal rate of hydrogen sulfide is more than 99%, and the removal rate of ammonia is more than 90%.

[0017] 2. The biological filter area of ​​the utility model adopts a composite filler mainly composed of volcanic rocks, and is reasonably graded. The composite filler has the characteristics of large specific surface area, small filtration resistance, strong water holding capacity, small bulk density, high mechanical strength, stable chemical properties, etc. The filler is resistant to acid and alkali corrosion and suitable for the growth of microorganisms; the filler is not easy to harden and age, is harmless to the human body, has no secondary pollution, and has a service life of not less than 10 years.

[0018] 3. Compared with other biological deodorization equipment, the utility model occupies a small area.

[0019] 4. The utility model does not need to add chemical agents, has low operating costs, and requires less one-time investment.

[0020] 5. The utility model has low requirements on the site, is easy to construct, and has flexible facilities.

[0021] 6. The utility model has fewer equipment and lower maintenance cost. Description of the drawings:

[0022] Figure 1 It is a schematic cross-sectional view of the processing device of the utility model;

[0023] Figure 2 yes Figure 1 AA cross-section diagram of .

[0024] Reference numerals in the figures:

[0025] 1-pre-washing area, 2-diversion area, 3-biofilter area, 4-second circulating water tank, 5-first circulating water tank, 6-first filler support area, 7-second filler support, 8-ball ring filler, 9-volcanic rock composite filler, 10-first spray pipe network, 11-second spray pipe network, 12-water pump, 13-circulating pipe network, 14-air outlet, 15-air inlet pipe, 16-partition, 17-side plate of diversion area, 18-diversion grille, 19-liquid level controller, 20-gas collecting hood, 21-outer partition of biofilter. Specific implementation method:

[0026] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies identical or similar to the present invention do not exceed the scope of protection of the present invention.

[0027] See also Figure 1-Figure 2 The utility model provides a cylindrical biological deodorizing filter, which is a cylindrical structure and consists of a pre-washing area 1, a diversion area 2, and a biological filter area 3, including two links of pre-washing and biological filter deodorization. The pre-washing area 1, the diversion area 2, and the biological filter area 3 form an integrated concentric cylindrical device composed of three concentric cylindrical containers, wherein the diversion area 2 and the pre-washing area 1 are in the middle, the outermost side is the biological filter area 3, the container formed by the central cylindrical tube is the pre-washing area 1, the container composed of the middle ring is the diversion area 2, and the container composed of the outermost ring is the biological filter area 3.

[0028] The pre-washing zone 1 and the guide zone 2 are separated by a partition 16, which is arranged outside the pre-washing zone 1 and is a cylindrical structure with a circular ring cross section. The partition 16 is not capped, and the top of the partition 16 is 600-800mm away from the top plate of the guide zone 2. The guide zone 2 and the biological filter tank zone 3 are separated by a guide zone side plate 17, which is a cylindrical structure with a circular ring cross section. The top of the guide zone side plate 17 is capped, and the vertical distance between the guide zone side plate 17 and the outer partition 16 of the pre-washing zone 1 is 600mm. The height of the bottom of the guide zone side plate 17 is 600-1000mm, which is the guide grille 18, and the width of the guide grille 18 is 50-100mm. A biofilter outer baffle 21 with a cylindrical structure and a circular cross-section is arranged outside the biofilter area 3. The top of the biofilter outer baffle 21 is connected to a gas collecting hood 20 which is narrow at the top and wide at the bottom. The top of the gas collecting hood 20 is connected to an exhaust pipe 14.

[0029] The pre-washing area 1 is provided with a first filler support 6 and a ball ring filler 8, and a ball ring filler 8 is arranged above the first filler support 6. A first spray pipe network 10 is arranged above the pre-washing area 1, and a first circulating water pool 5 for collecting spray liquid is arranged at the bottom. The air inlet pipe 15 is inserted into the pre-washing area 1; the first spray pipe network 10 is composed of a spray main pipe and a branch pipe, which are arranged in a circular shape to ensure uniform water distribution. A liquid level controller 19 is arranged in the diversion area 2. The biofilter area 3 is provided with a second filler support 7 and a volcanic rock composite filler 9, and a volcanic rock composite filler 9 is arranged above the second filler support 7. A second spray pipe network 11 is arranged above the biofilter area 3, and a second circulating water pool 4 is arranged at the bottom; the second spray pipe network 11 is composed of a spray main pipe and a branch pipe, which is arranged in a circle around the biofilter area 3 to ensure uniform water distribution; the second circulating water pool 4 is connected to the bottom of the diversion area 2 through the diversion grid 18 arranged at the bottom of the diversion area side plate 17. One end of the spray pipe of the second spray pipe network 11 passes through the outer partition 21 of the biological filter and is connected to the water pump 12 outside the deodorizing filter box structure. One end of the spray pipe of the first spray pipe network 10 passes through the side plate 17 of the diversion area and the outer partition 21 of the biological filter and is connected to another water pump 12 outside the deodorizing filter box structure. The second spray pipe network 11 and the first spray pipe network 10 are respectively supplied with water by the water pump 12 outside the deodorizing filter box structure. The first circulating water pool 5 and the second circulating water pool 4 are respectively provided with a circulating pipe network 13 at the bottom. The first circulating water pool 5 and the second circulating water pool 4 are respectively connected to the circulating water tank through the circulating pipe network 13. The first circulating water pool 5 and the second circulating water pool 4 collect the circulating water sprayed by the spray pipe network and enter the circulating water tank respectively, and are replaced with clean water after a period of time.

[0030] Since odor is generally corrosive, in order to ensure the service life of the deodorizing filter tank box structure, the shell of the outer partition 21 of the biological filter tank of the deodorizing filter tank is made of stainless steel material with performance not lower than 022Cr19Ni10, and the lining is glass fiber reinforced plastic; the first filler bracket 6 and the second filler bracket 7 are made of glass fiber reinforced resin.

Claims

1. A cylindrical biological deodorization filter tank, characterized by: The deodorization filter tank is of a cylindrical structure and consists of a pre-washing area (1), a diversion area (2), and a biological filter tank area (3). The pre-washing area (1), the diversion area (2), and the biological filter tank area (3) form an integrated concentric cylinder device composed of three concentric cylindrical containers. The container formed by the central cylindrical barrel is the pre-washing area (1), the container formed by the middle ring is the diversion area (2), and the container formed by the outermost ring is the biological filter tank area (3); the pre-washing area (1) and the diversion area (2) are separated by a partition plate (16); the diversion area (2) and the biological filter tank area (3) are separated by a side plate (17) of the diversion area; a lateral partition plate (21) of the biological filter tank is arranged outside the biological filter tank area (3), and the top of the lateral partition plate (21) of the biological filter tank is connected to a gas collection hood (20), and an exhaust pipe (14) is connected above the gas collection hood (20); a first packing support (6) and Pall rings (8) are arranged in the pre-washing area (1), the Pall rings (8) are arranged above the first packing support (6), a first spray pipe network (10) is arranged above the pre-washing area (1), a first circulating water tank (5) is arranged at the bottom, and an air inlet pipe (15) is inserted into the pre-washing area (1); a second packing support (7) and a volcanic rock composite packing (9) are arranged in the biological filter tank area (3), the volcanic rock composite packing (9) is arranged above the second packing support (7), a second spray pipe network (11) is arranged above the biological filter tank area (3), and a second circulating water tank (4) is arranged at the bottom; a diversion grille (18) is arranged at the bottom of the side plate (17) of the diversion area, and the second circulating water tank (4) communicates with the bottom of the diversion area (2) through the diversion grille (18); circulating pipe networks (13) are respectively arranged at the bottoms of the first circulating water tank (5) and the second circulating water tank (4), and the first circulating water tank (5) and the second circulating water tank (4) are respectively connected to a circulating water tank through the circulating pipe networks (13).

2. The cylindrical biological deodorization filter according to claim 1 is characterized in that: The partition plate (16) is arranged outside the pre-washing area (1) and is of a cylindrical structure with a circular cross-section. The partition plate (16) has no top cover, and the top of the partition plate (16) is 600 - 800 mm away from the top plate of the diversion area (2).

3. The cylindrical biological deodorization filter according to claim 1 is characterized in that: The side plate (17) of the diversion area is of a cylindrical structure with a circular cross-section. The top of the side plate (17) of the diversion area is capped. The vertical distance between the side plate (17) of the diversion area and the outer partition plate (16) of the pre-washing area (1) is 600 mm; the height of 600 - 1000 mm at the bottom of the side plate (17) of the diversion area is the diversion grille (18), and the width of the diversion grille (18) is 50 - 100 mm.

4. The cylindrical biological deodorization filter according to claim 1 is characterized in that: A lateral partition plate (21) of the biological filter tank with a cylindrical structure having a circular cross-section is arranged outside the biological filter tank area (3).

5. The cylindrical biological deodorization filter according to claim 1 is characterized in that: The gas collection hood (20) is narrow at the top and wide at the bottom.

6. The cylindrical biological deodorization filter according to claim 1, characterized in that: The first spray pipe network (10) arranged above the pre-washing area (1) is composed of a main spray pipe and branch pipes and is arranged in a circular layout.

7. The cylindrical biological deodorization filter according to claim 1 is characterized in that: The second spray pipe network (11) arranged above the biological filter tank area (3) is composed of a main spray pipe and branch pipes and is in a cross shape and arranged in a circle around the biological filter tank area (3).

8. The cylindrical biological deodorization filter according to claim 1 is characterized by: One end of the second spray pipe network (11) passes through the outer baffle plate (21) of the biological filter and is connected to a water pump (12) outside the deodorizing filter box structure, and one end of the first spray pipe network (10) passes through the side plate (17) of the guide area and the outer baffle plate (21) of the biological filter and is connected to another water pump (12) outside the deodorizing filter box structure; the second spray pipe network (11) and the first spray pipe network (10) are both supplied with water by the water pump (12) outside the deodorizing filter box structure.

9. The cylindrical biological deodorization filter according to claim 1, characterized in that: A liquid level controller (19) is provided in the flow guide area (2).

10. The cylindrical biological deodorization filter according to claim 1, characterized in that: The outer shell of the biological filter outer partition (21) of the deodorizing filter is made of stainless steel material with performance higher than 022Cr19Ni10, and the lining is glass fiber reinforced plastic; the first filler support (6) and the second filler support (7) are made of glass fiber reinforced resin.

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