CN204973191U - Continuous szyrt filter equipment of many bins of multistage water distribution - Google Patents

Abstract

The utility model relates to a multi-stage water distribution and multi-chamber continuous flow sand filtering device. The method mainly solves the problems that the existing filter materials used in sewage filtration need to be back-cleaned regularly to reduce work efficiency and waste water resources. It is characterized in that: the upper part of the inner filter bed of the housing (1) is fixed with a water outlet weir (5), and the upper part of the housing (1) is fixed with a sand washer (4) through a bracket, and the bottom of the sand washer (4) passes through the collection The sand cylinder (13) is connected with a sand lifting device (3), and the sand lifting device (3) is connected with the air source controller. The lower end of the sand lifting device (3) is located at the bottom of the shell (1) after passing through the filter bed; The lower part of the sand washer (4) is connected with a sewage discharge chamber (11) through a pipeline, and the lower part of the sewage discharge chamber (11) is connected with the sand collection cylinder (13). The multi-stage water distribution and multi-chamber continuous flow sand filter device can continuously filter without stopping the machine, has high working efficiency, saves water and has good filtering effect.

Description

A multi-stage water distribution and multi-chamber continuous flow sand filter device

technical field

The utility model relates to a sewage treatment device, in particular to a multi-stage water distribution and multi-chamber continuous flow sand filter device.

Background technique

At present, the sewage filtration process basically adopts a fixed filter bed. During the filtration process, the oil and suspended solids removed from the feed water accumulate on the surface of the filter layer. As the filtration continues, the oil removed from the water and stored in the filter bed The substance will reduce the porosity of the filter bed, causing a head pressure loss, so that the head loss through the filter tank may be close to or equal to the head required for the water flow through the filter tank at a predetermined flow rate, or the floc particles may leak into or penetrate into the filter tank. The filter tank goes out of the water, at this time the filter tank must stop working, and the filter material is cleaned. Periodically stop the filtration work to clean the filter material, which reduces the operating efficiency of water treatment and filtration. When cleaning the filter material, a high-power, large-displacement cleaning pump is required, which not only increases equipment investment but also wastes water resources, and is time-consuming and expensive. work.

Contents of the invention

In order to overcome the existing problems that the filter materials used in sewage filtration need to be regularly backwashed to reduce work efficiency and waste water resources, the utility model provides a multi-stage water distribution multi-chamber continuous flow sand filter device, the multi-stage water distribution The multi-compartment continuous flow sand filter device can continuously filter without stopping the machine, with high working efficiency, water saving and good filtering effect.

The technical scheme of the utility model is: a multi-stage water distribution and multi-chamber continuous flow sand filter device, including a shell, the lower part of the shell is fixed with a water distributor, and the upper part of the filter bed in the shell is fixed with a water outlet weir, And the upper part of the shell is fixed with a sand washer through the bracket, the bottom of the sand washer is connected with a sand lifter through a sand collection cylinder, the sand lifter is connected with the air source controller, and the lower end of the sand lifter is located at the bottom of the shell after passing through the filter bed ; The lower part of the sand washer is connected with a blowdown chamber through a pipeline, and the lower part of the blowdown chamber is connected with the sand collection cylinder.

There are 3 water distributors, which are evenly distributed along the circumferential direction, and 4 sand washers. The bottom of the shell is divided into 4 areas by a herringbone baffle, and each sand washer corresponds to an area .

A water inlet pipe is connected to the upper part of the water distributor, a water outlet pipe is connected to the water outlet weir, and a sewage discharge pipe is connected to the sewage discharge chamber.

The utility model has the following beneficial effects: due to the adoption of the above scheme, the device improves the fixed filter bed in the conventional filtration process of water treatment into a fluidized bed, and improves the periodic backwashing of the conventional filter tank into continuous filtration and continuous cleaning of the filter material. Filtration is completed in the filter layer bed. The sand lifter lifts the dirty sand trapped in the lower part of the filter bed to the sand washing device on the upper part of the tank for cleaning. As the lower filter sand is continuously taken away, the filter bed will move slowly from top to bottom, and the dirty sand It is continuously lifted into the sand washer for cleaning, and the washed filter sand returns to the filter bed, and the filter sand is continuously cleaned in a cycle, so that the filter material in the filter tank is always clean, thus ensuring the quality of the effluent water It is stable and will not fluctuate periodically due to the degree of pollution of the filter sand.

The filtration device realizes the organic combination of the filtration process and the sand washing process. It can continuously filter without stopping, the process is simple, the impact load is resistant, the filter material is cleaned in an automatic cycle, the dirt load is large, the filtration effect is good, and the water production rate is high. , Less cleaning water, high filtration efficiency, less investment in equipment, saving energy and human resources, and easy to operate and maintain.

Description of drawings

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

Fig. 2 is a sectional view of the utility model.

In the figure 1-shell, 2-water distributor, 3-sand lifter, 4-sand washer, 5-outlet weir, 6-herringbone baffle, 7-support frame, 8-inlet pipe, 9-outlet Water pipe, 10-sand washing chamber, 11-drainage chamber, 12-drainage outlet, 13-sand collection cylinder, 14-gas separation chamber.

detailed description

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

As shown in Figure 1 and Figure 2, a multi-stage water distribution and multi-chamber continuous flow sand filter device includes a shell 1 filled with filter material, and a water distributor 2 is fixed in the middle and lower part of the shell 1 , there are three water distributors 2, which are evenly distributed along the circumferential direction. The upper part of the water distributor 2 is connected with a water inlet pipe 8, and the end of the water inlet pipe 8 is located outside the housing 1. A water outlet weir 5 is fixed on the top of the filter bed in the housing 1 , and an outlet pipe 9 is connected to the outlet weir 5 , and the end of the outlet pipe 9 is located outside the housing 1 .

The upper part of the shell 1 is fixed with a sand washer 4 through a bracket. There are 4 sand washers 4, one at the center and three evenly distributed on the edge. 3, the lower end of the sand lifter 3 is located at the bottom of the shell 1 after passing through the filter bed; the bottom of the shell 1 is divided into 4 areas by the herringbone baffle 6, and each sand lifter 3 corresponds to one area respectively, forming 4 Sand collection area, wherein the sand collection area at the center is located at the bottom, lower than the three sand collection areas at the edge. The inlet of the sand lifting device 3 is connected to the air source controller, and the other end of the air source controller is connected to the sand lifting pump. The sand lifting device 3 sucks the dirty sand in the sand collection cylinder 13 into the sand lifting device through the compressed air provided by the sand lifting pump. Inside, the dirty sand is then transported to the sand washer 4 located on the upper part of the tank for cleaning. A sand washing chamber 10 is provided at the lower part of the sand washing device 4, and the sand washing chamber 10 is composed of a sand washing column and a sand washing cylinder, and is in the shape of an annular labyrinth. The bottom of the sand washing chamber 10 is connected with a blowdown chamber 11 through a pipeline, the blowdown chamber 11 is connected with a blowdown pipe 12 , and the bottom of the blowdown chamber 11 is connected with a sand collection barrel 13 . A gas separation chamber 14 is also provided inside the sand washer 4 , and the dirty sand transported by the sand lifting device 3 is separated from the air brought in by the sand lifting pump in the gas separation chamber 14 .

The working process of the filter device is as follows: the raw water enters the water distributor 2 from the water inlet 8 through the water inlet pipe, comes out from the water distributor 2 and enters the filter bed area upwards, and part of the filtered water passes through the outlet weir 5 and is discharged out of the tank through the outlet pipe 9. The other part enters the sand washer 4 from the sand washing chamber 10. After the dirty sand is cleaned in the sand washing chamber 4, the sand washing sewage enters the sewage chamber 11 through the movable weir, and finally is discharged out of the tank through the sewage pipe 12.

The dirty sand that retains the dirt is collected into the sand collection cylinder 13 through the sand distribution device at the lower part of the sand washer 4, and the dirty sand in the sand collection cylinder 13 is transported to the sand washer 4 by the sand lifting device 3 through the sand lifting pipe In the gas separation chamber 14, the air brought in by the sand lifting pump is first separated in the gas separation chamber 14, and the separated air is discharged out of the tank through the exhaust pipe connected to the gas separation chamber 14, and the sand water after the air separation The mixture enters the sand washing chamber 10 under the action of gravity, and when the dirty sand passes through the sand washing chamber 10, the filtered water reversely washes the dirty sand from bottom to top, and cleans the filter sand with dirt. The filter sand returns to the filter bed to filter the sewage again.

Claims (3)

1. the continuous quicksand filter of the many bins of multistage water distribution, comprise housing (1), bottom in described housing (1) is fixed with water-locator (2), it is characterized in that: the interior filter bed top of described housing (1) is fixed with effluent weir (5), and housing (1) top is fixed with sand-washing device (4) by support, sand-washing device (4) bottom is connected with by collection sand cylinder (13) and carries sand device (3), carry sand device (3) to be connected with source of the gas controller, described in carry sand device (3) lower end through being positioned at housing (1) bottom after filter bed; Described sand-washing device (4) bottom is connected with blowdown room (11) by pipeline, and described blowdown room (11) bottom is connected with collection sand cylinder (13).

2. the continuous quicksand filter of the many bins of multistage water distribution according to claim 1, it is characterized in that: described water-locator (2) is 3, along the circumferential direction uniform, described sand-washing device (4) is 4, described housing (1) bottom is divided into 4 regions by herringbone baffle plate (6), and each sand-washing device (4) is a corresponding region respectively.

3. the continuous quicksand filter of the many bins of multistage water distribution according to claim 2, it is characterized in that: described water-locator (2) top is connected with water inlet pipe (8), effluent weir (5) is connected with outlet pipe (9), blowdown room (11) is connected with blow-off pipe (12).