Internal air distribution structure of integral biological filter

Abstract

The utility model relates to the field of biological deodorization, in particular to an internal air distribution structure of an integral biological filter, which comprises a biological box body. The pre-washing section and the biological section are arranged in the biological box and connected with each other, the air inlet is formed in the top end of the biological box, the air distribution baffle and the water tank are arranged at the bottom end of the biological box, the partition plate is arranged between the pre-washing section and the biological section, and the air distribution pipeline is connected with the partition plate. The system resistance is reduced, the utilization rate of the filler is improved through uniform air supply, short flow and dead angles of system airflow are reduced, the waste gas treatment efficiency is improved, and the operation energy consumption of the system is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to biological deodorization field, concretely is a whole type biological filter internal wind distribution structure. BACKGROUND

[0002] Biological deodorization mainly utilizes physiological metabolism of microorganism attached to the surface of biological filler to absorb, decompose and transform the odor substances such as hydrogen sulfide, ammonia and VOCs waste gas with peculiar smell as nutrient substrate, so that the target pollutants are effectively removed to achieve the purpose of waste gas treatment. Most of the existing biological deodorization filter does not have a wind distribution structure inside the structure, or the wind distribution structure is unreasonable, resulting in that most of the biological filler does not effectively utilize when treating waste gas, and the filler layer is partially interrupted or has dead angle, so that the waste gas treatment efficiency is low and the resistance is large. SUMMARY

[0003] In order to solve the above problems, the utility model provides a whole type biological filter internal wind distribution structure.

[0004] A whole type biological filter internal wind distribution structure, comprising a biological box body, further comprising a pre-washing section and a biological section connected with each other, an air inlet arranged at the top end of the biological box, a wind distribution baffle and a water tank arranged at the bottom end of the biological box, a partition plate arranged between the pre-washing section and the biological section, and a gas distribution pipeline connected with the partition plate.

[0005] The utility model has the advantages that the wind distribution and gas distribution structure can reduce the water loss of the pre-washing section, reduce the system resistance, uniformly supplement the gas, improve the utilization rate of the filler, reduce the short flow and dead angle of the system gas flow, improve the waste gas treatment efficiency, and reduce the operation energy consumption of the system. BRIEF DESCRIPTION OF DRAWINGS

[0006] The utility model will be further described below in combination with the drawings and examples.

[0007] Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0008] Fig. 2 It is a gas distribution baffle structure schematic view of the utility model;

[0009] Fig. 3 It is a gas distribution pipeline structure schematic view of the utility model;

[0010] Reference signs: 1, air inlet; 2, water tank; 3, wind distribution baffle; 31, semicircular hole; 4, gas distribution pipeline; 41, open end; 42, blind plate; 43, long strip hole; 5, pre-washing section; 6, biological section; 7, partition plate; 8, pre-washing section filler; 9, biological section filler. DETAILED DESCRIPTION

[0011] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below.

[0012] like Figs. 1 to 3 As shown, an internal air distribution structure of an integrated biological filter includes a biological tank body, a pre-wash section 5 and a biological section 6 connected to each other inside the biological tank, an air inlet 1 arranged at the top of the biological tank, an air distribution baffle 3 and a water tank 2 arranged at the bottom of the biological tank, a partition 7 arranged between the pre-wash section 5 and the biological section 6, and an air distribution duct 4 connected to the partition 7. The air distribution baffle 3 can prevent water droplets falling from the upper spray from being carried into the biological section filler 9 behind by the air flow.

[0013] The pre-wash section 5 and the biological section 6 are respectively equipped with a pre-wash section filler 8 and a biological section filler 9. The pre-wash section 5 mainly plays the role of pre-treating the exhaust gas, and the biological section 6 is the process section that mainly treats the exhaust gas. After the lower gas distribution structure is optimized, the treatment effect is significantly improved.

[0014] Rectangular openings with a distance of 500 mm are evenly opened on both sides of the air distribution duct 4. The exhaust gas is evenly discharged from both sides and then discharged horizontally to the upper filler layer.

[0015] The horizontal angle between the air distribution baffle 3 and the partition 7 is 45°, and the direction is biased towards the pre-wash section 5. The air distribution and gas distribution structure can reduce the loss of water in the pre-wash section, reduce the system resistance, uniformly supply air, improve the utilization rate of the filler, reduce the short flow and dead corners of the system airflow, improve the exhaust gas treatment efficiency, and reduce the operating energy consumption of the system.

[0016] A semicircular hole 31 is provided at every 500 mm on the lower part of the air distribution baffle 3 to facilitate the passage of air flow, and the baffle is rounded around to reduce local resistance.

[0017] There is a gap of more than 30 cm between the air distribution baffle 3 and the water level of the lower water tank 2 to ensure that the exhaust gas flow rate is less than 3 m / s. This structure can reduce the resistance of the transition air section by 150-200 Pa compared with setting it alone.

[0018] The cross section of the air distribution duct 4 can be set to be circular or square. The air distribution duct 4 includes an open end 41 and a blind plate 42. The air distribution duct 4 is located above the air distribution baffle 3. One section of the open end 41 is connected to the pre-wash section 5, and one section of the blind plate 42 is closed.

[0019] The air distribution duct 4 is provided with elongated strip holes 43 at intervals of 40-50 cm on both sides thereof. The elongated strip holes 43 have a length and width of 30 cm*10 cm and are evenly arranged on both sides of the air distribution duct 4 .

[0020] The long strip holes 43 are horizontally arranged on both sides of the air distribution pipe 4, which is beneficial to the air flow from the pre-washing section 5 to flow horizontally through the air distribution pipe 4 and then flow out from both sides of the biological section filler 9 in the width direction, so that the air flow can flow through the biological section filler 9 uniformly, and the utilization rate of the filler and the treatment effect are improved.

[0021] The air distribution baffle 3 and the air distribution pipe 4 are combined, a part of the air flow flows from the lower part of the air distribution baffle 3 to the biological section filler 9 at the rear end, and a part of the air flow flows out from the air distribution pipe 4, which is more beneficial to the air flow organization.

[0022] The air inlet 1 is connected with the top plate of the pre-washing section 5, the exhaust gas enters the biological tank from the top, passes through the pre-washing section filler 8 layer from top to bottom to the bottom, the air distribution baffle 3 ensures the flow field nature and uniformity of the air flow, and can prevent the water in the upper part from entering the rear biological section 6, reduce the loss of the pre-washing section water, the pre-washing section 5 is connected with the biological section 6 as a whole, and is separated by the partition plate 7, the air distribution pipe 4 is connected with the partition plate 7, and serves as a component part of the air distribution system, a part of the exhaust gas goes to the biological section 6 from the lower side of the air distribution baffle 3, and a part of the exhaust gas goes to the biological section 6 from the air distribution pipe 4, the exhaust gas passes through the biological section filler 9 from bottom to top, the rectangular openings opened on both sides of the air distribution pipe 4 make the exhaust gas flow out from both sides uniformly and then flow out horizontally to the upper filler layer.

[0023] The above shows and describes the basic principle, main features and advantages of the utility model. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated biofilter internal air distribution structure, comprising a biofilter body, characterized in that: The invention also comprises a pre-wash section (5) and a biological section (6) which are connected to each other and arranged inside the biological box, an air inlet (1) arranged at the top of the biological box, an air distribution baffle (3) and a water tank (2) arranged at the bottom of the biological box, a partition (7) arranged between the pre-wash section (5) and the biological section (6), and an air distribution duct (4) connected to the partition (7).

2. The internal air distribution structure of the integrated biofilter according to claim 1, characterized in that: The pre-washing section (5) and the biological section (6) are respectively built with a pre-washing section filler (8) and a biological section filler (9).

3. The internal air distribution structure of the integrated biofilter according to claim 1, characterized in that: The internal air distribution structure of an integrated biofilter according to claim 1 is characterized in that the horizontal angle between the air distribution baffle (3) and the partition (7) is 45°.

4. The internal air distribution structure of the integrated biofilter according to claim 1, characterized in that: A semicircular hole (31) is provided at every 500 mm interval on the lower part of the wind distribution baffle (3).

5. The internal air distribution structure of the integrated biofilter according to claim 1, characterized in that: A gap of more than 30 cm is left between the wind distribution baffle (3) and the water level of the lower water tank (2).

6. The internal air distribution structure of the integrated biofilter according to claim 1, characterized in that: The cross section of the air distribution duct (4) can be set to be circular or square, and the air distribution duct (4) includes an open end (41) and a blind plate (42).

7. The internal air distribution structure of the integrated biofilter according to claim 1, characterized in that: Long strip holes (43) are provided on both sides of the air distribution pipe (4) at intervals of 40-50 cm.

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