CN205307928U - Back flush drain filter - Google Patents

Abstract

The utility model discloses a backwash sewage filter, which comprises a filter housing, a water inlet, a sewage outlet and a water outlet. A cylindrical filter screen is fixedly set in the filter housing, and the water outlet end of the water inlet is arranged on the filter screen. Inside, the water inlet end of the water outlet is set on the outside of the filter screen, and a backwash motor is fixedly installed on the end of the filter housing close to the water inlet. Backwashing device, the backwashing device is rotated and installed in the filter screen, the backwashing device is connected with a backwashing strengthening device, and the backwashing strengthening device extends to the outside of the filter housing; when the backwashing device and the sewage outlet are not activated in the utility model , the filter is in the normal water supply state. When the backwashing device and the sewage outlet are opened, the filter is in the backwashing state. At this time, the backwashing strengthening device is activated at the same time to strengthen the flushing effect. The effect is good.

Description

Backwash blowdown filter

technical field

The utility model relates to the technical field of water treatment equipment, in particular to a backwash sewage filter.

Background technique

At present, water body filtration is one of the indispensable treatment processes in the water purification process, which is used to intercept impurities in water to purify water quality or protect the normal operation of other equipment in the system. Ordinary mesh filter is widely used in water source filtration, industrial circulating water system and other fields because of its good filtering effect and low resistance, but its disadvantages are small amount of dirt, easy to be blocked by dirt, complicated cleaning work, and the equipment must be cleaned The cleaning of the filter part can only be realized by disassembly, so the cleaning efficiency is low, and it is greatly affected by human factors, so that the automatic cleaning degree of the whole system is low and the labor intensity is high.

Utility model content

The technical problem to be solved by the utility model is to provide a convenient and simple backwash sewage filter.

In order to solve the above-mentioned technical problems, the technical solution of the utility model is: the backwash sewage filter includes a filter housing, the bottom of the filter housing is provided with a water inlet, and the bottom of the filter housing is also provided with Sewage outlet, the water inlet and the sewage outlet are arranged opposite to each other on both sides of the bottom of the filter housing, and the top of the filter housing is provided with a water outlet, and the water outlet and the sewage outlet are at the same The upper and lower sides of the filter housing are oppositely arranged, and a cylindrical filter screen is fixedly set in the filter housing, the water outlet end of the water inlet is arranged in the filter screen, and the water inlet end of the water outlet Located on the outside of the filter screen, a backwash motor is fixedly installed on the end of the filter housing close to the water inlet, the power output end of the backwash motor is fixedly connected to a reducer, and the reducer rotates A backwashing device is connected, and the backwashing device is rotatably installed in the filter screen. The backwashing device is connected with a backwashing strengthening device, and the backwashing strengthening device extends to the outside of the filter housing.

As a preferred technical solution, the backwashing device includes a hollow shaft arranged in the filter, the hollow shaft passes through the filter screen and is rotatably mounted on the filter housing, and the power of the reducer The output shaft passes through the filter housing and is fixedly connected to the hollow shaft, and the power output shaft of the reducer is in sealing contact with the filter housing. Several The dirt brushing rods are arranged in a staggered manner, and the ends of the dirt brushing rods are respectively fixed with scrub brushes in contact with the filter net.

As a preferred technical solution, the backwash strengthening device includes an aeration main pipe set in the hollow rotating shaft, and the end of the hollow rotating shaft away from the reducer is fixedly connected with the aeration main pipe, and the aeration main pipe Aeration branch pipes are evenly distributed on the top, and the aeration branch pipes extend to the outside of the hollow rotating shaft. There are aeration holes, the end of the filter screen away from the backwash motor is provided with a pipe seat, the aeration main pipe is rotatably installed on the pipe seat located in the filter screen, and is located outside the filter screen An air delivery pipe is fixedly installed on the pipe seat, the air delivery pipe seals and extends outward through the filter housing, and the air delivery pipe is connected with a high-pressure gas source.

As a preferred technical solution, the branch aeration pipe is spaced apart from the scrubbing rod.

Due to the adoption of the above technical solution, the backwash sewage filter includes a filter housing, the bottom of the filter housing is provided with a water inlet, and the bottom of the filter housing is also provided with a sewage outlet, and the water inlet The sewage outlet is oppositely arranged on both sides of the bottom of the filter housing, and the top of the filter housing is provided with a water outlet, and the water outlet and the sewage outlet are located above and below the filter housing The two sides are oppositely arranged, and a cylindrical filter screen is fixedly set in the filter housing, and the water outlet end of the water inlet is arranged in the filter screen, and the water inlet end of the water outlet is arranged in the filter screen. On the outside, a backwash motor is fixedly installed on the end of the filter housing close to the water inlet, the power output end of the backwash motor is fixedly connected with a reducer, and the reducer is rotatably connected with a backwash device. The backwashing device is rotated and installed in the filter screen, the backwashing device is connected with a backwashing strengthening device, and the backwashing strengthening device extends to the outside of the filter housing; the beneficial effects of the utility model are: When the backwash device and the sewage outlet are not activated, the filter is in the normal water supply state. When the backwash device and the sewage outlet are opened, the filter is in the backwash state. At this time, the backwash strengthening device is activated at the same time to enhance the flushing effect. , the utility model is easy to operate and use, and the backwashing effect is good.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

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

In the figure: 1-filter housing; 2-water inlet; 3-drain outlet; 4-water outlet; 5-filter; 6-backwash motor; 7-reducer; 8-hollow shaft; 9-scrub Rod; 10-board brush; 11-aeration main pipe; 12-aeration branch pipe; 13-aeration ball head; 14-pipe seat; 15-air pipe.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the backwash sewage filter includes a filter housing 1, the bottom of the filter housing 1 is provided with a water inlet 2, and the bottom of the filter housing 1 is also provided with a sewage outlet 3, The water inlet 2 and the sewage discharge port 3 are oppositely arranged on both sides of the bottom of the filter housing 1, and the top of the filter housing 1 is provided with a water outlet 4, and the water outlet 4 is connected to the sewage discharge port. The mouth 3 is arranged oppositely on the upper and lower sides of the filter housing 1, and a cylindrical filter screen 5 is fixedly set in the filter housing 1, and the water outlet end of the water inlet 2 is arranged on the filter screen 5 Inside, the water inlet end of the water outlet 4 is arranged on the outside of the filter screen 5, the raw water introduced by the water inlet 2 first enters the filter screen 5, is filtered through the filter screen 5, and then passes through the filter screen 5. The water outlet 4 is discharged.

A backwash motor 6 is fixedly installed on the end of the filter housing 1 close to the water inlet 2 in this embodiment, and the power output end of the backwash motor 6 is fixedly connected with a reducer 7, and the reducer 7 A backwashing device is rotatably connected, and the backwashing device is rotatably arranged in the filter screen 5. The backwashing device includes a hollow shaft 8 arranged in the filter, and the hollow shaft 8 passes through the filter. The net 5 is rotatably mounted on the filter housing 1, the power output shaft of the reducer 7 passes through the filter housing 1 and is fixedly connected with the hollow shaft 8, and the power output of the reducer 7 The shaft is in sealing contact with the filter housing 1. A number of cleaning rods 9 are arranged on the outer wall of the hollow rotating shaft 8. The cleaning rods 9 are arranged in a staggered manner. The ends of the cleaning rods 9 are respectively A scrub brush 10 in contact with the filter screen 5 is fixedly installed. Due to the staggered arrangement of the brushing rods 9, after the backwash motor 6 and the reducer 7 drive the hollow shaft 8 to rotate, each of the scrub brushes 10 is respectively in contact with the inner wall of the filter screen 5, and the The impurity that hangs on the filter screen 5 is brushed off.

The backwashing device is connected with a backwashing strengthening device, and the backwashing strengthening device extends to the outside of the filter housing 1 . The backwash strengthening device includes an aeration main pipe 11 set in the hollow rotating shaft 8, and the end of the hollow rotating shaft 8 away from the reducer 7 is fixedly connected with the aeration main pipe 11, and the aeration main pipe 11 Aeration branch pipes 12 are evenly distributed on the top, and the aeration branch pipes 12 extend to the outside of the hollow rotating shaft 8, and the ends of the aeration branch pipes 12 located outside the hollow rotating shaft 8 are fixedly connected with aeration ball heads 13. Aeration holes are arranged on the aeration ball head 13, and the end of the filter screen 5 far away from the backwash motor 6 is provided with a pipe seat 14, and the aeration main pipe 11 is rotatably installed in the filter screen 5. On the pipe seat 14, an air delivery pipe 15 is fixedly installed on the pipe seat 14 outside the filter screen 5, and the air delivery pipe 15 is sealed and extends outward through the filter housing 1. The air pipe 15 is connected with a high-pressure air source, and the branch aeration pipe 12 is arranged at intervals from the cleaning rod 9 .

When the backwash motor 6 and the reducer 7 are started, the sewage outlet 3 also needs to be opened, and at the same time, the high-pressure gas is delivered to the aeration main pipe 11 through the gas delivery pipe 15, and the high-pressure gas passes through the The aeration ball head 13 is blasted and ejected to increase the pressure in the filter screen 5, and the foreign matter and sewage brushed off in the filter screen 5 are discharged through the sewage outlet 3 together, realizing the effect of the high-pressure gas. For the backwashing produced by the filter screen 5, the utility model is easy to operate and has good backwashing effect.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (4)

1. sewage backwash filter, including filter housings, it is characterized in that: the bottom of described filter housings is provided with water inlet, the bottom of described filter housings is additionally provided with sewage draining exit, described water inlet and described sewage draining exit are oppositely arranged in the two bottom sides of described filter housings, the top of described filter housings is provided with outlet, described outlet and described sewage draining exit are oppositely arranged in the both sides up and down of described filter housings, in described filter head housings body, fixed cover is equipped with cylindrical drainage screen, the water side of described water inlet is located in described drainage screen, the water inlet end of described outlet is located at the outside of described drainage screen, on described filter housings, the one end near described water inlet is installed with backwash motor, the clutch end of described backwash motor is fixedly connected with reductor, described reductor is rotatably connected to back purge system, described back purge system rotates to be located in described drainage screen, described back purge system is connected to backwash stiffening device, described backwash stiffening device extends to the outside of described filter housings.

2. sewage backwash filter as claimed in claim 1, it is characterized in that: described back purge system includes the hollow rotating shaft being located in described filter, described hollow rotating shaft rotates through described drainage screen and is installed on described filter housings, the power output shaft of described reductor is connected through described filter housings and described hollow rotating shaft are fixing, and seal between power output shaft and the described filter housings of described reductor and contact, the outer wall of described hollow rotating shaft is arranged the dirty bar of some brushes is installed, the dirty bar of described brush is crisscross arranged, the end of the dirty bar of described brush is installed with the scrubbing brush contacted with described drainage screen respectively.

3. sewage backwash filter as claimed in claim 2, it is characterized in that: described backwash stiffening device includes the aeration house steward being set in described hollow rotating shaft, described hollow rotating shaft is connected away from one end and the described aeration house steward of described reductor is fixing, described aeration house steward is evenly equipped with aeration branch pipe, described aeration branch pipe extends to the outside of described hollow rotating shaft, it is positioned at the aeration branch pipe end outside described hollow rotating shaft and is fixedly connected with aeration bulb, described aeration bulb is provided with solarization air cap, described drainage screen runs through away from one end of described backwash motor and is provided with base, described aeration house steward rotates and is installed on the described base being positioned at described drainage screen, it is positioned on the described base outside described drainage screen and is installed with appendix, filter housings described in described appendix hermetically passing stretches out, described appendix is connected to high-pressure air source.

4. sewage backwash filter as claimed in claim 3, it is characterised in that: described aeration branch pipe and the dirty bar interval of described brush are arranged.