CN211521878U - Combined high-efficiency reaction clarification filter - Google Patents

Abstract

The utility model discloses a combined high-efficiency reaction clarification filter, which comprises a body. A mud hopper, a clarification layer, a filter layer and a water outlet weir are sequentially arranged in the body from the bottom to the top, an ejector is arranged at the bottom of the body, and a There are also a first reaction chamber and a second reaction chamber inside, the filter layer is a light filter material floating on the water surface, a filter plate is arranged under the water outlet weir, a nozzle is arranged on the filter plate, and the top of the second reaction chamber is extended. Between the clarification layer and the filter layer, a backwashing device is arranged between the second reaction chamber and the filter layer. The backwashing device includes a water inlet pipe, a backwashing main pipe and a number of backwashing branch pipes that are connected in sequence. There is a flushing nozzle, a backwashing water inlet and a backwashing water outlet are arranged on the body, the water inlet pipe is connected with the backwashing water inlet, and the backwashing water outlet is located between the backwashing branch pipe and the clarification layer. The utility model increases the filtering area, increases the filtering speed, and makes the backwashing more thorough.

Description

Combined high-efficiency reaction clarification filter

technical field

The utility model belongs to the field of clarification and purification equipment, in particular to a combined high-efficiency reaction clarification filter.

Background technique

In sewage treatment, clarification equipment is often used to achieve solid-liquid separation. The existing integrated hydrodynamic clarification equipment can realize clarification and filtration at the same time, and use the power of the ejector to drive the internal mixed liquid circulation, and the quality of the effluent is better. However, the existing integrated hydrodynamic clarification equipment has the following problems: 1. The area of the filter layer is small, the filtration speed is slow, and the position of the filter layer is fixed and cannot be dispersed, resulting in incomplete cleaning of the filter layer during backwashing and reduced filtering effect; 2. The outlet weir is annular, the nozzle closer to the outlet weir emits water faster, while the nozzle that is farther away from the outlet weir in the middle emits slower water, and the filter layer is used unevenly, which affects the filtering effect; The sludge near the hopper will be continuously circulated under the power of hydraulic jet, resulting in excessive moisture content of the sludge discharged from the sludge discharge port of the mud hopper.

Utility model content

In view of the above technical problems, the utility model aims to provide a combined high-efficiency reaction clarification filter that can effectively clean the filter layer and improve the filtering effect.

Therefore, the technical scheme adopted by the present invention is as follows: a combined high-efficiency reaction clarification filter includes a body, and a mud bucket, a clarification layer, a filter layer and a water outlet weir are sequentially arranged in the body from the bottom to the top, An ejector is arranged at the bottom of the body, a first reaction chamber and a second reaction chamber are also arranged in the body, the water outlet of the ejector extends into the bottom water inlet of the first reaction chamber, the first reaction chamber The top of a reaction chamber extends to a position near the top of the second reaction chamber, the sewage enters from the bottom of the first reaction chamber, and overflows from the top to the second reaction chamber, and the water outlet of the second reaction chamber is located at the bottom thereof, and The water outlet of the second reaction chamber is located below the clarification layer. After the sewage comes out of the second reaction chamber, it passes through the clarification layer and the filter layer in sequence and then is discharged from the outlet weir. The filter layer is a light filter material floating on the water surface. A filter plate for blocking the light filter material is arranged below the outlet weir, a number of evenly distributed nozzles are arranged on the filter plate, and the top of the second reaction chamber extends between the clarification layer and the filter layer. A backwashing device is arranged between the second reaction chamber and the filter layer. The backwashing device includes a water inlet pipe, a backwashing main pipe and several backwashing branch pipes that are connected in sequence, and one end of the backwashing branch pipe is connected to the backwashing main pipe. , the other end extends horizontally and is fixed on the inner wall of the body, the backwash branch pipe is provided with a number of flushing nozzles facing the filter layer, the body is provided with a backwash water inlet and a backwash drain, the water inlet pipe It is connected with the backwash water inlet, and the backwash water outlet is located between the backwash branch pipe and the clarification layer.

Preferably, the body is cylindrical, the backwash main pipe is installed above the second reaction chamber, and is coaxially arranged with the body, the backwash branch pipes all extend radially, and the water inlet pipe extends horizontally and is located in the opposite direction. Flush the top of the branch. With the above structure, the arrangement of the backwashing branch pipes is reasonable, which further improves the backwashing effect, and the water inlet pipe is located above the backwashing branch pipe, which is more energy-saving.

Preferably, the outlet weir is in the shape of a cross, and the cross center of the water outlet weir coincides with the center of the body. With the above structure, the outlet water enters the outlet weir from both sides of the outlet weir, which shortens the average distance between each nozzle and the outlet weir, and the water outlet speed of each nozzle is more uniform.

Preferably, the body is cylindrical, the diameter of the lower part of which is gradually reduced from top to bottom to form a truncated precipitation area, the top opening of the mud hopper is communicated with the upper part of the precipitation area, and a drain is arranged at the lower part of the mud hopper. mud mouth. With the above structure, the mud hopper is communicated with the upper part of the sedimentation area, so that the sludge entering the mud hopper will not be recirculated under the action of hydraulic jet, which reduces the moisture content of the sludge in the mud hopper and improves the sedimentation effect.

Preferably, the body is supported by four outriggers arranged in a rectangular shape, the size of the mud bucket is gradually reduced from top to bottom, and the bottom thereof forms a supporting surface flush with the bottom surface of the outriggers. The above structure is used to facilitate the entry of sludge into the mud bucket, and at the same time, the mud bucket can be used as an auxiliary support for the body, so that the installation structure of the body is more stable.

The beneficial effects of the utility model are: the filter layer floats on the entire water surface, which increases the filtering area and improves the filtering speed; the position of the filter layer can be adjusted by the height of the water surface, so when backwashing, the height of the filter layer can be reduced by reducing the height of the filter layer. , thereby shortening the distance between the filter layer and the backwashing branch pipe, improving the backwashing effect, and at the same time, the light filter material is more dispersed during backwashing, making the backwashing more thorough.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of weir;

Figure 3 is a schematic diagram of the structure of the backwashing device.

Detailed ways

Below by embodiment and in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1, a combined high-efficiency reaction clarification filter is mainly composed of a body 1, a mud hopper 2, a clarification layer 3, a filter layer 4, a water outlet weir 5, a first reaction chamber 6, a second reaction chamber 7, a jet 8, backwashing device 9, outriggers 10, filter plates 11 and nozzles 12, the body 1 is supported by the outriggers 10, and the mud bucket 2, the clarification layer 3, the filter layer 4 and the The water outlet weir 5, the clarification layer 3 are inclined tube layers, the ejector 8 is arranged at the bottom of the body 1, the first reaction chamber 6 and the second reaction chamber 7 are located in the body 1, and the diameter of the first reaction chamber 6 is gradually reduced from top to bottom. The second reaction chamber 7 is cylindrical, and the lower water outlet of the second reaction chamber 7 is located between the mud hopper 2 and the clarification layer 3, and the lower water inlet of the first reaction chamber 6 is located in the second reaction chamber. 7, the upper water outlet extends into the second reaction chamber 7 and is close to the top of the second reaction chamber 7, the water outlet of the ejector 8 extends into the water inlet of the first reaction chamber 6, and the mine water enters from the ejector 8 in sequence. After passing through the first reaction chamber 6 , the second reaction chamber 7 , the clarification layer 3 and the filter layer 4 , it is discharged from the outlet weir 5 .

As shown in Figures 1 and 3, the body 1 is cylindrical, the filter layer 4 is a lightweight filter material floating on the water surface, and is located above the second reaction chamber 7, and the filter layer 4 can be ceramsite or other lightweight The filter material is provided with a filter plate 11 below the outlet weir 5. The filter plate 11 is used to block the light filter material and prevent the light filter material from overflowing from the outlet weir 5. The filter plate 11 is horizontally arranged and fixed on the inner wall of the body 1. The filter plate 11 is provided with a number of evenly distributed nozzles 12 , and the effluent is filtered by the filter layer 4 and then sprayed from each nozzle 12 . A backwashing device 9 is provided between the second reaction chamber 7 and the filter layer 4. The backwashing device 9 includes a water inlet pipe 901, a backwashing main pipe 902 and a number of evenly distributed backwashing branch pipes 903 connected in sequence. The backwashing main pipe 902 is installed Above the second reaction chamber 7 and coaxial with the body 1, one end of the backwash branch pipe 903 is connected to the backwash main pipe 902, and the other end extends horizontally and radially and is fixed on the inner wall of the body 1, on the backwash branch pipe 903 There are several flushing nozzles facing the filter layer 4. The water inlet pipe 901 extends horizontally and radially and is located above the backwash branch pipe 903. The body 1 is provided with a backwash water inlet 101 and a backwash drain port 102. The water inlet pipe 901 is connected to the backwash pipe. The water inlet 101 is connected, and the backwash outlet 102 is located between the backwash branch pipe 903 and the clarification layer 3 , which can prevent the water sprayed from the backwash branch pipe 903 from being directly discharged from the backwash outlet 102 . When backwashing, first open the backwash water outlet 102, lower the water level, make the filter layer 4 closer to the backwash branch pipe 903, and then open the backwash water inlet 101, water enters from the backwash water inlet 101, and flows through The water inlet pipe 901, the backwash main pipe 902, and the backwash branch pipe 903 are sprayed out from the flushing nozzle to backwash the filter layer 4, and the backwash drainage is discharged from the backwash outlet 102. During the backwash process, always keep the filter layer 4 at the Above the backwashing branch pipe 903, the filter layer 4 is relatively close to the backwashing branch pipe 903, and the lightweight filter material repeatedly rolls, scatters and gathers under the impact of the water flow during the backwashing process, effectively improving the backwashing effect.

As shown in FIGS. 1 and 2 , the outlet weir 5 is in the shape of a cross, and its cross center is coincident with the center of the body 1. The water sprayed from the nozzle 12 flows into the outlet weir 5 from both sides of the outlet weir 5, which is similar to the existing annular Compared with the water outlet weir, the average distance between each nozzle 12 and the water outlet weir 5 is shortened, so that the water outlet efficiency is higher, and the water outlet from each nozzle 12 is more uniform.

As shown in FIG. 1 , the body 1 is supported by four outriggers 10 arranged in a rectangular shape. The diameter of the lower part of the body 1 is gradually reduced from top to bottom to form a truncated precipitation area 103 . A mud hopper 2, and the top opening of the mud hopper 2 is communicated with the upper part of the sedimentation zone 103, and a mud discharge port 201 is arranged at the lower part of the mud hopper 2, the size of the mud hopper 2 gradually decreases from top to bottom, and the bottom of the mud hopper 2 forms The support surface flush with the bottom surface of the outrigger 10 makes the mud bucket 2 play an auxiliary supporting role for the body 1 .

Claims (5)

1. A combined high-efficiency reaction clarification filter comprises a machine body (1), wherein a mud bucket (2), a clarification layer (3), a filter layer (4) and a water outlet weir (5) are sequentially arranged in the machine body (1) from bottom to top, an ejector (8) is arranged at the bottom of the machine body (1), a first reaction chamber (6) and a second reaction chamber (7) are further arranged in the machine body (1), a water outlet of the ejector (8) extends into a water inlet at the bottom of the first reaction chamber (6), the top end of the first reaction chamber (6) extends to a position close to the top in the second reaction chamber (7), sewage flows into the second reaction chamber (7) from the top after entering from the bottom of the first reaction chamber (6), a water outlet of the second reaction chamber (7) is positioned at the bottom of the second reaction chamber, and a water outlet of the second reaction chamber (7) is positioned below the clarification layer (3), sewage is discharged from a water outlet weir (5) after sequentially passing through a clarification layer (3) and a filter layer (4) after coming out of a second reaction chamber (7), and is characterized in that: the filter layer (4) is a light filter material floating on the water surface, a filter plate (11) for blocking the light filter material is arranged below the water outlet weir (5), a plurality of uniformly distributed spray heads (12) are arranged on the filter plate (11), the top end of the second reaction chamber (7) extends to a position between the clarification layer (3) and the filter layer (4), a back washing device (9) is arranged between the second reaction chamber (7) and the filter layer (4), the back washing device (9) comprises a water inlet pipe (901), a back washing main pipe (902) and a plurality of uniformly distributed back washing branch pipes (903) which are sequentially connected, one end of each back washing branch pipe (903) is communicated with the back washing main pipe (902), the other end of each back washing branch pipe horizontally extends and is fixed on the inner wall of the machine body (1), and a plurality of washing spray heads facing the filter layer (4) are arranged on the back, a backwashing water inlet (101) and a backwashing water outlet (102) are arranged on the machine body (1), the water inlet pipe (901) is connected with the backwashing water inlet (101), and the backwashing water outlet (102) is positioned between the backwashing branch pipe (903) and the clarification layer (3).

2. The combined high efficiency reaction and clarification filter of claim 1, characterized in that: the machine body (1) is cylindrical, the back washing main pipe (902) is arranged above the second reaction chamber (7) and is coaxial with the machine body (1), the back washing branch pipes (903) extend in the radial direction, and the water inlet pipe (901) extends horizontally and is positioned above the back washing branch pipes (903).

3. The combined high efficiency reaction and clarification filter of claim 1, characterized in that: the water outlet weir (5) is in a cross shape, and the cross center of the water outlet weir coincides with the center of the machine body (1).

4. The combined high efficiency reaction and clarification filter of claim 1, characterized in that: the machine body (1) is cylindrical, the diameter of the lower part of the machine body is gradually reduced from top to bottom to form a cone-shaped settling area (103), the top opening of the mud bucket (2) is communicated with the upper part of the settling area (103), and a mud discharging opening (201) is formed in the lower part of the mud bucket (2).

5. The combined high efficiency reaction and clarification filter of claim 4, characterized in that: the machine body (1) is supported by four support legs (10) which are arranged in a rectangular shape, the size of the mud bucket (2) is gradually reduced from top to bottom, and the bottom of the mud bucket forms a support surface which is flush with the bottom surfaces of the support legs (10).

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