Active sand filter tank for sewage treatment

Abstract

The utility model discloses an active sand filter tank for sewage treatment, which relates to the technical field of sewage treatment and comprises a filter tank body, a first active sand filter tank, a second active sand filter tank and a clean water tank area, a temporary storage tank area is arranged below the first active sand filter tank, and the second active sand filter tank is arranged above the inside of the second filter area. A clean water tank area is arranged below the second active sand filter, and an auxiliary filter structure is arranged at the bottom of the first active sand filter; according to the utility model, the first active sand filter tank can be used as a main filter tank for independent primary filtration, the second active sand filter tank can also be used for independent primary filtration, and meanwhile, the first active sand filter tank and the second active sand filter tank can be used for common filtration; the first active sand filter and the second active sand filter which are different are independently used or jointly used, so that reasonable selection can be carried out according to the pollution degree of sewage to carry out efficient filtering, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an active sand filter tank used for sewage treatment. Background Art

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or reuse. Activated sand filtration is a wastewater treatment technology that integrates flocculation, sedimentation, and filtration. It simplifies the process of traditional process treatment. Activated sand filtration technology has the advantages of low one-time investment cost and low maintenance cost, and it plays an increasingly important role in the deep treatment process of municipal and industrial water and wastewater.

[0003] The traditional activated sand filter has a single structure and cannot adjust the filtering mode according to the pollution degree of sewage. Moreover, it is mostly a one-time filtering mode, and the filtering is not thorough enough. Therefore, the utility model proposes an activated sand filter for sewage treatment to solve the shortcomings of the prior art. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide an activated sand filter for sewage treatment, which can realize a separate primary filtration using a first activated sand filter as a main filter, and can also realize a separate primary filtration using a second activated sand filter. At the same time, the first activated sand filter and the second activated sand filter can be used for joint filtration. The use of different first activated sand filters and second activated sand filters alone or together can achieve reasonable selection according to the degree of sewage pollution for efficient filtration, and improve the filtration efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An activated sand filter for sewage treatment comprises a filter body, a first activated sand filter, a second activated sand filter and a clean water tank area, wherein the interior of the filter body is divided into a first filter area and a second filter area by a layer plate, a first activated sand filter is arranged inside the first filter area, a temporary storage tank area is arranged below the first activated sand filter, a second activated sand filter is arranged above the second filter area, a clean water tank area is arranged below the second activated sand filter, the temporary storage tank area is connected to the top of the second activated sand filter through a plurality of groups of first discharge pipes, and the temporary storage tank area is connected to the top of the clean water tank area through a plurality of groups of second discharge pipes, the bottoms of the first activated sand filter and the second activated sand filter are both hollow structures, and an auxiliary filtering structure is arranged at the bottom of the first activated sand filter, the auxiliary filtering structure comprises a filter body and a filter installation assembly, installation slots are arranged at both ends of the top of the first activated sand filter, the filter installation assembly is arranged inside the installation slot, the filter body is arranged at the bottom of the first activated sand filter, and both ends of the filter body are connected to the filter installation assembly.

[0007] A further improvement is that the first active sand filter includes a tank body frame, a single tank and an active sand storage tank body, the tank body frame is provided with a single tank body, and the single tank body is provided with a plurality of each of which has an active sand storage tank body movably provided therein.

[0008] A further improvement is that: a first electromagnetic control valve is provided on the first discharge pipe, a second electromagnetic control valve is provided on the second discharge pipe, a clean water pipe is provided on one side of the clean water pool area, and a plurality of clean water pipes are provided.

[0009] A further improvement is that a long through groove is provided on one side wall of the upper end of the filter tank body, an overflow groove body is provided on the outer side wall of the upper end of the filter tank body, and the overflow groove body, the long through groove and the first active sand filter tank are connected.

[0010] A further improvement is that the filter installation assembly includes a winding roller and an unwinding roller, one group of the installation grooves is provided with a winding roller for rotation, and the other group of the installation grooves is provided with an unwinding roller for rotation, one end of the filter body is wound and installed on the unwinding roller, and the other end of the filter body is connected to the winding roller.

[0011] A further improvement is that handles are symmetrically provided on the top of the active sand storage tank.

[0012] The beneficial effects of the utility model are as follows: the utility model can realize the use of the first active sand filter as a main filter tank for a single filtration, and can also realize the use of the second active sand filter tank for a single filtration, and can also realize the use of the first active sand filter tank and the second active sand filter tank for common filtration by arranging the active sand filter tank to consist of a filter tank body, a first active sand filter tank, a second active sand filter tank and a clear water tank area, and an auxiliary filtration structure is provided at the bottom of the first active sand filter tank, and can realize the use of the first active sand filter tank and the second active sand filter tank for common filtration at the same time, and can realize reasonable selection according to the pollution degree of sewage to perform efficient filtration when the first active sand filter tank is used alone or together, and can improve the filtration efficiency, and when the first active sand filter tank is used as the main filter tank for filtration, the auxiliary filtration structure can also be used to improve the filtration quality;

[0013] The first active sand filter tank of the utility model is composed of a tank body frame, a single tank tank and an active sand storage tank body, and the active sand storage tank body can be conveniently taken out to realize the operation of cleaning the active sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the filter tank body of the utility model;

[0016] Figure 3 This is a three-dimensional schematic diagram of the structure of the first active sand filter tank of the utility model;

[0017] Figure 4 This is a schematic front view of the auxiliary filtering structure of the utility model.

[0018] Among them: 1. filter tank body; 2. first active sand filter tank; 201. tank body frame; 202. single tank tank; 203. active sand storage tank body; 3. second active sand filter tank; 4. clean water tank area; 5. layer plate; 6. temporary storage tank area; 7. first discharge pipe; 8. second discharge pipe; 9. filter screen body; 10. installation tank body; 11. first electromagnetic control valve; 12. second electromagnetic control valve; 13. clean water pipe; 14. long through tank; 15. overflow tank body; 16. winding roller; 17. unwinding roller; 18. handle. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0020] according to Figure 1-4 As shown, this embodiment proposes an activated sand filter for sewage treatment, including a filter body 1, a first activated sand filter 2, a second activated sand filter 3 and a clear water tank area 4. The interior of the filter body 1 is divided into a first filter area and a second filter area by a layer plate 5. The first filter area is provided with a first activated sand filter 2, and a temporary storage tank area 6 is provided below the first activated sand filter 2. The second filter area is provided with a second activated sand filter 3 above the interior, and a clear water tank area 4 is provided below the second activated sand filter 3. The temporary storage tank area 6 is connected to the second activated sand filter through a plurality of first discharge pipes 7. 3, and the temporary storage pool area 6 is connected to the top of the clean water pool area 4 through multiple groups of second discharge pipes 8. The bottoms of the first active sand filter 2 and the second active sand filter 3 are both hollow structures, and the bottom of the first active sand filter 2 is provided with an auxiliary filtering structure, the auxiliary filtering structure includes a filter body 9 and a filter installation assembly, the top two ends of the first active sand filter 2 are provided with installation grooves 10, the filter installation assembly is arranged inside the installation groove 10, the filter body 9 is arranged at the bottom of the first active sand filter 2, and the two ends of the filter body 9 are connected to the filter installation assembly.

[0021] When the activated sand filter tank for sewage treatment of the utility model is used, the first activated sand filter tank 2 can be selected for single filtration according to the pollution degree of sewage, and the second activated sand filter tank 3 can be selected for temporary filtration when the filtering efficiency of the first activated sand filter tank 2 decreases, and the first activated sand filter tank 2 and the second activated sand filter tank 3 can be used for filtration at the same time when the pollution degree of sewage is relatively large. When the first activated sand filter tank 2 is used for single filtration, the first electromagnetic control valve 11 on the first discharge pipe 7 is closed, so that the clean water obtained after filtration in the first activated sand filter tank 2 first enters the temporary storage pool area 6, and then connects to the clean water pool area 4 from the temporary storage pool area 6 through the second discharge pipe 8. When the clean water obtained after filtration in the first activated sand filter tank 2 enters the temporary storage pool area 6, it will also pass through the auxiliary filtration structure for an auxiliary filtration. When it is necessary to use the first activated sand filter 2 and the second activated sand filter 3 for joint filtration, the second discharge pipe 8 is closed, and the water that has been filtered once in the temporary storage area 6 is discharged to the second activated sand filter 3 through the first discharge pipe 7 for re-filtration, and then the clean water enters the clean water tank area 4.

[0022] The first active sand filter 2 comprises a tank frame 201, a single tank 202 and an active sand storage tank 203. The tank frame 201 is provided with a single tank 202, and the single tank 202 is provided with a plurality of single tanks, and the multiple single tanks 202 are provided with active sand storage tanks 203. When the filtering capacity of the active sand in the first active sand filter 2 decreases and needs to be cleaned, the multiple active sand storage tanks 203 can be taken out to clean the active sand, and then the entire active sand filter for sewage treatment can be filtered through the second active sand filter 3 as a temporary filter.

[0023] The first discharge pipe 7 is provided with a first electromagnetic control valve 11, the second discharge pipe 8 is provided with a second electromagnetic control valve 12, and one side of the clean water pool area 4 is provided with a clean water pipe 13, and the clean water pipe 13 is provided with multiple clean water pipes. The clean water in the clean water pool area 4 is discharged to the next area through multiple clean water pipes 13.

[0024] A long through groove 14 is provided on one side wall of the upper end of the filter tank body 1, and an overflow groove body 15 is provided on the outer side wall of the upper end of the filter tank body 1. The overflow groove body 15, the long through groove 14 and the first active sand filter tank 2 are connected. The overflow groove body 15 is provided for sewage to buffer into the first active sand filter tank 2 inside the filter tank body 1.

[0025] The filter screen installation assembly includes a winding roller 16 and an unwinding roller 17. A group of the installation slots 10 are provided with a winding roller 16 for rotation, and another group of the installation slots 10 are provided with an unwinding roller 17 for rotation. One end of the filter screen body 9 is wound and installed on the unwinding roller 17, and the other end of the filter screen body 9 is connected to the winding roller 16. By providing the winding roller 16 and the unwinding roller 17, when the energy efficiency of the current filtering surface of the filter screen body 9 decreases, the clean filtering surface can be moved to the bottom of the first active sand filter tank 2, and the blocked first active sand filter tank 2 can be rolled up onto the winding roller 16.

[0026] The top of the active sand storage tank 203 is symmetrically provided with handles 18. The handles 18 are provided to facilitate lifting the active sand storage tank 203 to clean the active sand inside.

[0027] The utility model configures an activated sand filter tank to consist of a filter tank body 1, a first activated sand filter tank 2, a second activated sand filter tank 3 and a clear water tank area 4, and an auxiliary filtering structure is provided at the bottom of the first activated sand filter tank 2, so that the first activated sand filter tank 2 can be used as a main filter tank for a single filtration, and the second activated sand filter tank 3 can be used for a single filtration, and the first activated sand filter tank 2 and the second activated sand filter tank 3 can be used for common filtration at the same time. The use of different first activated sand filters 2 and second activated sand filters 3 alone or together can realize reasonable selection according to the pollution degree of sewage for efficient filtration, and improve the filtration efficiency. When the first activated sand filter tank 2 is used as the main filter tank for filtration, the auxiliary filtering structure can be used to improve the filtration quality. The first activated sand filter tank 2 of the utility model is composed of a tank body frame 201, a single tank tank 202 and an activated sand storage tank body 203, so that the activated sand storage tank body 203 can be conveniently taken out to realize the operation of cleaning the activated sand.

[0028] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An activated sand filter for sewage treatment, characterized in that: The invention comprises a filter tank body (1), a first active sand filter tank (2), a second active sand filter tank (3) and a clear water tank area (4); the filter tank body (1) is divided into a first filter area and a second filter area by a layer plate (5); the first filter area is provided with a first active sand filter tank (2); a temporary storage tank area (6) is provided below the first active sand filter tank (2); a second active sand filter tank (3) is provided above the second filter area; a clear water tank area (4) is provided below the second active sand filter tank (3); the temporary storage tank area (6) is connected to the top of the second active sand filter tank (3) through a plurality of first discharge pipes (7); and the temporary storage tank area (6) is connected to the top of the second active sand filter tank (3) through a plurality of first discharge pipes (7). The zone (6) is connected to the top of the clean water tank zone (4) through a plurality of groups of second discharge pipes (8); the bottoms of the first active sand filter (2) and the second active sand filter (3) are both hollow structures, and an auxiliary filtering structure is provided at the bottom of the first active sand filter (2); the auxiliary filtering structure comprises a filter body (9) and a filter installation assembly; installation slots (10) are provided at both ends of the top of the first active sand filter (2); the filter installation assembly is arranged inside the installation slot (10); the filter body (9) is arranged at the bottom of the first active sand filter (2), and both ends of the filter body (9) are connected to the filter installation assembly.

2. The activated sand filter for sewage treatment according to claim 1, characterized in that: The first active sand filter (2) comprises a tank body frame (201), a single tank (202) and an active sand storage tank body (203); the tank body frame (201) is provided with a single tank (202) inside, and the single tank (202) is provided in plurality, and the active sand storage tank body (203) is movably provided in each of the plurality of single tanks (202).

3. The activated sand filter for sewage treatment according to claim 1, characterized in that: The first discharge pipe (7) is provided with a first electromagnetic control valve (11), the second discharge pipe (8) is provided with a second electromagnetic control valve (12), and one side of the clean water pool area (4) is provided with a clean water pipe (13), and a plurality of the clean water pipes (13) are provided.

4. The activated sand filter for sewage treatment according to claim 1, characterized in that: A long through groove (14) is provided on one side wall of the upper end of the filter tank body (1), an overflow groove body (15) is provided on the outer side wall of the upper end of the filter tank body (1), and the overflow groove body (15), the long through groove (14) and the first active sand filter tank (2) are connected.

5. The activated sand filter for sewage treatment according to claim 1, characterized in that: The filter screen installation assembly comprises a winding roller (16) and an unwinding roller (17); one group of the installation slots (10) is provided with a winding roller (16) for rotation, and another group of the installation slots (10) is provided with an unwinding roller (17) for rotation; one end of the filter screen body (9) is wound around the unwinding roller (17), and the other end of the filter screen body (9) is connected to the winding roller (16).

6. The activated sand filter for sewage treatment according to claim 2, characterized in that: The top of the active sand storage tank (203) is symmetrically provided with handles (18). 。

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