Novel V-shaped filter tank capable of preventing sand from hardening

Abstract

The utility model discloses a novel V-shaped filter tank for preventing sand hardening and belongs to the field of advanced treatment of sewage plants. The filter tank comprises a tank body, a water distribution tank and middle partition plates, the tank body is divided into a water filtering area and a drainage area by the two middle partition plates, a bottom sieve plate is arranged between the tank body in the water filtering area and the middle partition plates, a triangular sieve plate composed of a first inclined sieve plate and a second inclined sieve plate is arranged above the bottom sieve plate, the area of the sieve plate is increased, and the filtering efficiency is improved; meanwhile, a steel ball vibrator is arranged on the inclined sieve plate and vibrates to drive the inclined sieve plate to vibrate, so that the filter layer is dispersed through vibration to prevent sand hardening, and the filter efficiency is further improved. And a back-flushing nozzle is arranged below the bottom sieve plate to disperse the filter layer to prevent hardening. The filter is stable and efficient in operation, effectively solves the problem of sand hardening of the V-shaped filter, and has important practical value and application value.

Description

Technical Field

[0001] The utility model relates to the field of deep treatment of sewage plants, in particular to a novel V-shaped filter tank for preventing sand from compacting. Background Art

[0002] In sewage treatment plants, V-type filters are a common filtering equipment used to remove suspended solids from sewage. However, due to improper operation or accumulation of pollutants, the sand in the V-type filter may become compacted during use, resulting in reduced filtration efficiency and even the need to shut down for cleaning. Existing effective solutions mainly include regular cleaning and replacement of filter media, but these methods not only interrupt the filtration process, but also increase operating costs and maintenance workload. Therefore, it is necessary to develop a new V-type filter that can effectively solve the problem of sand compaction in sewage treatment plants so that automatic cleaning can be achieved during the filtration process. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a new V-shaped filter tank that prevents sand from compacting, so as to solve the problems such as the sand compaction requiring shutdown for cleaning proposed in the above background technology. The device not only increases the screen plate area and improves the filtration efficiency, but also reduces the maintenance cost and workload. To achieve the above purpose, the following technical solutions are provided:

[0004] A novel V-shaped filter tank for preventing sand from compacting comprises a tank body, a water distribution trough, a water outlet and an overflow port. The filter tank body is divided into a water filtration area and a drainage area by two middle partitions, and the top of the drainage area is the overflow port; a bottom sieve plate is arranged between the tank body and the middle partition plate, and the bottom sieve plate divides the water filtration area into an upper filtration layer and a lower clear water layer;

[0005] The bottom sieve plate is provided with a triangular sieve plate consisting of a first inclined sieve plate and a second inclined sieve plate, and steel ball vibrators are provided on the first inclined sieve plate and the second inclined sieve plate;

[0006] The filter tank also includes a fan, which is connected to a recoil pipe via a regulating valve, and a recoil nozzle is arranged on the recoil pipe below the bottom sieve plate.

[0007] The steel ball vibrator adopts an operating frequency of 50-60 Hz.

[0008] The included angle between the first inclined screen plate and the second inclined screen plate is 100-150 degrees.

[0009] The beneficial effects of the utility model are as follows: the filter tank includes a tank body, a water distribution trough, and a middle partition. The tank body is divided into a water filtration area and a drainage area by two middle partitions. A bottom sieve plate is arranged between the tank body and the middle partition in the water filtration area. A triangular sieve plate consisting of a first inclined sieve plate and a second inclined sieve plate is arranged above the bottom sieve plate, which increases the sieve plate area and improves the filtration efficiency. At the same time, a steel ball vibrator is arranged on the inclined sieve plate, and the vibration of the vibrator drives the inclined sieve plate to vibrate, thereby vibrating the filter layer to prevent sand from being compacted, further improving the filtration efficiency. A backwash nozzle is arranged below the bottom sieve plate to flush the filter layer to prevent compaction. The filter tank can be automatically cleaned without affecting the filtration efficiency. The combination of the backwash device and the vibrator can effectively loosen the sand, prevent sand from being compacted, improve the filtration efficiency, reduce the need to replace the filter material, and reduce the maintenance cost and workload. The filter tank operates stably and efficiently, effectively solves the problem of sand compaction in the V-type filter tank, and has important practical value and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are introduced below.

[0011] Figure 1 This is a schematic diagram of a new type of V-type filter tank that prevents sand from compacting.

[0012] In the figure: 1. pool body, 2. water distribution trough, 3. fan, 4. regulating valve, 5. recoil pipe, 6. recoil nozzle, 7. drain port, 8. water outlet, 9. bottom sieve plate, 10. first inclined sieve plate, 11. second inclined sieve plate, 12. steel ball vibrator, 13. overflow port, 14. middle partition plate. DETAILED DESCRIPTION

[0013] The present invention is described below with reference to the accompanying drawings and specific implementation methods:

[0014] Figure 1 A novel V-shaped filter tank for preventing sand compaction is shown, which includes a tank body 1, a water distribution trough 2, a water outlet 8 and an overflow port 13. The filter tank body 1 is divided into a filtration area and a drainage area by two middle partitions 14, and the top of the drainage area is the overflow port 13.

[0015] A bottom sieve plate 9 is arranged between the pool body 1 and the middle partition plate 14, and the bottom sieve plate 9 divides the water filtering area into an upper filtering layer and a lower clear water layer; a triangular sieve plate consisting of a first inclined sieve plate 10 and a second inclined sieve plate 11 is arranged on the bottom sieve plate 9, and the angle between the first inclined sieve plate 10 and the second inclined sieve plate 11 is 120 degrees.

[0016] The first inclined sieve plate 10 and the second inclined sieve plate 11 are provided with a steel ball vibrator 12, which uses a 50 Hz power frequency. The filter tank also includes a fan 3, which is connected to a backwash pipe 5 via a regulating valve 4, and a backwash nozzle 6 is provided on the backwash pipe 5 below the bottom sieve plate 9.

[0017] When the above technical solution is used, a triangular sieve plate composed of a first inclined sieve plate and a second inclined sieve plate is arranged above the bottom sieve plate. The angle between the first inclined sieve plate 10 and the second inclined sieve plate 11 is 120 degrees. The triangular sieve plate increases the sieve plate area compared to the flat sieve plate, thereby improving the filtration efficiency. Start the vibration device: a steel ball vibrator 12 is arranged on the inclined sieve plate. The vibration of the vibrator drives the inclined sieve plate to vibrate. The vibration generated by the steel ball vibrator 12 helps the sand to be redistributed in the filter tank, thereby vibrating the filter layer to prevent the sand from compacting, and further improving the filtration efficiency. Start the backwashing device: a backwashing nozzle 6 is arranged below the bottom sieve plate 9. The aeration generated by the backwashing device flushes the sand to loosen it, and flushes the filter layer to prevent compaction. The filter tank operates stably and efficiently, effectively solves the problem of sand compaction in the V-type filter tank, and has important practical value and application value.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A novel V-shaped filter tank for preventing sand compaction, comprising a tank body (1), a water distribution trough (2), a water outlet (8) and an overflow outlet (13), characterized in that: The filter tank is divided into a water filtration area and a drainage area by two intermediate partitions (14), and the top of the drainage area is an overflow port (13); a bottom sieve plate (9) is arranged between the tank body (1) and the intermediate partition (14), and the bottom sieve plate (9) divides the water filtration area into an upper filtration layer and a lower clear water layer; A triangular sieve plate consisting of a first inclined sieve plate (10) and a second inclined sieve plate (11) is arranged on the bottom sieve plate (9), and a steel ball vibrator (12) is arranged on the first inclined sieve plate (10) and the second inclined sieve plate (11); The filter tank further comprises a fan (3), the fan (3) being connected to a backwash pipe (5) via a regulating valve (4), and a backwash nozzle (6) being arranged on the backwash pipe (5) below the bottom sieve plate (9).

2. A novel V-shaped filter tank for preventing sand compaction according to claim 1, characterized in that: The steel ball vibrator (12) uses an operating frequency of 50-60 Hz.

3. A novel V-shaped filter tank for preventing sand compaction according to claim 1, characterized in that: The included angle between the first inclined screen plate (10) and the second inclined screen plate (11) is 100-150 degrees.

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