CN204307432U - Solid-liquid separating filter - Google Patents

Abstract

The utility model discloses a solid-liquid separation filter, which comprises a shell (1), which is characterized in that: the shell (1) is provided with a partition (2), and the lower chamber (1.2) Several filter pipes (3) are provided, and the housing (1) is provided with a water inlet pipe (4) and a first air inlet pipe (6) communicated with the lower chamber (1.2), and connected with the upper chamber (1.1 ) connected to the water outlet pipe (5) and the second air inlet pipe (7), the water inlet pipe (4) is connected to the external sewage source, the water outlet pipe (5) is connected to the water tank, and the first air inlet pipe (6) is connected to the second air inlet pipe (6). Two air intake pipes (7) are respectively connected with the air pump. The utility model provides a solid-liquid separation filter which can thoroughly backwash a filter element, thereby ensuring stable purification capability of the filter element tube and long service life.

Description

Solid-liquid separation filter

technical field

The utility model relates to the technical field of sewage treatment, in particular to a solid-liquid separation filter.

Background technique

At present, plate and frame filter presses and centrifuges are more conventionally used in the solid-liquid separation process with large solid content. Among them, the plate and frame filter press needs to replace the filter cloth regularly during use, which has high maintenance costs and poor water purification effect, while the centrifugal separator can only be adapted to occasions with small production capacity and high energy consumption. Therefore, there is an urgent need for a filter with good water purification effect and low maintenance cost for large-scale solid-liquid separation treatment process in this field.

In the prior art, there is already a filter element filter that purifies sewage through the adsorption of the filter element, which has a good sewage purification effect, but the filter element also needs to be replaced regularly, so its maintenance cost is still high. In order to reduce the problem of high cost caused by frequent replacement of the filter element, the filter element is often reused by backwashing in the prior art, that is to say, after a certain use time is reached, the filter element is realized by reverse water washing. Self-cleaning, thereby realizing the repeated use of the filter element, thereby reducing the replacement cycle of the filter element and reducing maintenance costs. However, due to the influence of the material strength of the filter element, the water pressure of the backwashing must not be too high, otherwise it is easy to cause the filter element to be deformed under pressure, so this makes the backwashing process of the filter element incomplete. Excessive particles will be deposited, eventually leading to premature failure of the filter element. Therefore, the cartridge filter in the prior art still has the technical problem of high maintenance cost. In addition, the particles in the filter element are gradually deposited with the use time, so the purification ability of the filter element is gradually reduced with the use time, which also causes the instability of the purification ability of the filter element filter in the prior art .

Contents of the invention

The technical problem to be solved by the utility model is: to provide a solid-liquid separation filter with a thorough backwashing of the filter element, so as to ensure a stable purification ability of the filter element tube and a long service life.

The technical solution adopted by the utility model is to provide a solid-liquid separation filter, which includes a housing, which is characterized in that: the housing is provided with a chamber that divides the inner cavity of the housing into an upper chamber and a lower chamber. A partition, the outer side wall of the partition is fixed and sealed to the inner side wall of the housing, a number of filter tubes are arranged in the lower chamber, the lower ends of all the filter tubes are sealed, and the upper ends of the filter tubes are respectively fixed to the partition, And the junction of the filter tube and the partition is sealed, and the position corresponding to each filter tube on the partition is provided with a through hole for connecting the filter tube to the upper chamber, and the housing is provided with a hole connected to the lower chamber. The water inlet pipe and the first air inlet pipe communicated, and the water outlet pipe and the second air inlet pipe connected with the upper chamber, the water inlet pipe is connected with the external sewage source, the water outlet pipe is connected with the water tank, the first air inlet pipe is connected with the second The intake pipes are respectively connected with the air pumps.

After adopting the above structure, the solid-liquid separation filter of the present utility model has the following advantages compared with the prior art: in the backwashing process of the filter tube, the moisture attached to the filter tube can be dried through the first air inlet pipe, and then the water attached to the filter tube can be dried through the first air inlet pipe. The second air intake pipe blows the filter tube in reverse, so that the particles attached to the filter tube fall off, so the backwashing effect of the filter tube is better than that of the prior art water backwashing, thereby improving the service life of the filter tube and saving maintenance costs , secondly, the filter tubes are installed through the partition, so that a plurality of filter tubes can be evenly distributed in the cavity of the housing in an orderly manner, thereby improving the filtering effect.

As a preference, one end of the first air intake pipe and the second air intake pipe communicates with the output end of the air pump through a reversing valve, the other end of the first air intake pipe communicates with the water inlet pipe through a valve, and the second air intake pipe communicates with the output end of the air pump. The other end communicates with the outlet pipe through a valve. One air pump can be used to supply two intake pipes through the reversing valve, reducing the number of air pumps. Through the valve, the intake pipe and the water pipe share a pipeline, reducing the connection holes on the shell and improving the sealing of the shell.

Preferably, a sewage outlet is provided at the lower end of the housing, and a funnel with a large upper part and a smaller lower part is formed near the housing, and an end cover for opening and closing the sewage outlet is provided on the sewage outlet. Through the sewage outlet, the large particle debris in the shell and the agglomerated particles dropped after the backwashing of the filter tube can be regularly discharged.

Further, the housing is provided with a first cylinder and a second cylinder, one end of the end cover is hinged to the housing, the cylinder body of the first cylinder is hinged to the housing, and one end of the piston rod of the first cylinder is connected to the end The covers are hinged by a bearing seat fixed on the end cover, and the housing is provided with a locking block for locking the end cover when the end cover is pushed by the first cylinder to close the sewage outlet. One end of the locking block is hinged to the housing, the other end of the locking block is hinged to the piston rod of the second cylinder, and the cylinder body of the second cylinder is hinged to the housing. The opening and closing of the end cover driven by the cylinder can realize automation, reduce the labor intensity of the operator at the same time, and also facilitate the operation when the utility model has a large volume.

Description of drawings

Fig. 1 is a schematic structural view of the solid-liquid separation filter of the present invention.

Among them, 1. shell, 1.1, upper chamber, 1.2, lower chamber, 1.3, sewage outlet, 2, clapboard, 2.1, through hole, 3, filter pipe, 4, water inlet pipe, 5, water outlet pipe, 6 , the first air intake pipe, 7, the second air intake pipe, 8, the end cover, 9, the first cylinder, 10, the second air cylinder, 11, the locking block, 12, the air pump.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

The external sewage source, water tank and air pump etc. in the accompanying drawing are conventional technology, not marked among the figure.

As shown in the figure, the utility model provides a solid-liquid separation filter, which includes a housing 1, and the housing 1 is provided with a chamber that divides the inner chamber of the housing 1 into an upper chamber 1.1 and a lower chamber 1.2. The partition 2, the outer side wall of the partition 2 is fixed and sealed with the inner side wall of the housing 1, and a plurality of filter tubes 3 are arranged in the lower chamber 1.2, and the filter tubes 3 are vertically arranged, and each The filter tubes are evenly distributed around the geometric center of the housing in the horizontal direction. The lower ends of all the filter tubes 3 are sealed, the upper ends of the filter tubes 3 are respectively fixed with the partition 2, and the joints between the filter tubes 3 and the partition 2 are sealed, and the partitions are sealed. The positions corresponding to the filter tubes 3 on the plate 2 are provided with through holes 2.1 for connecting the filter tubes 3 with the upper chamber 1.1. The end face is fixed and sealed, and the tube lumen of the filter tube 3 communicates with the upper chamber 1.1 above the partition plate 2 through the through hole 2.1. The housing 1 is provided with a water inlet pipe 4 and a first air inlet pipe 6 communicating with the lower chamber 1.2, and an outlet pipe 5 and a second air inlet pipe 7 communicating with the upper chamber 1.1. The water inlet pipe 4 It communicates with the external sewage source, the outlet pipe 5 communicates with the water tank, and the first air inlet pipe 6 and the second air inlet pipe 7 communicate with the air pump 12 respectively.

One end of the first air inlet pipe 6 and the second air inlet pipe 7 communicates with the output end of the air pump 12 through a reversing valve, the other end of the first air inlet pipe 6 communicates with the water inlet pipe 4 through a valve, and the second air inlet pipe 6 communicates with the water inlet pipe 4 through a valve. The other end of the air pipe 7 communicates with the water outlet pipe 5 through a valve. Preferably, the reversing valve is a three-position, four-way electromagnetic reversing valve. The reversing valve, the valve and the air pump 12 are all electrically connected with the controller.

The lower end of the housing 1 is provided with a sewage outlet 1.3, and the position of the housing 1 close to the sewage outlet 1.3 forms a funnel 1.4 with a large upper part and a smaller lower part. The sewage outlet 1.3 is provided with a terminal for opening and closing the sewage outlet 1.3. Cover 8.

The housing 1 is provided with a first cylinder 9 and a second cylinder 10, one end of the end cover 8 is hinged with the housing 1, the cylinder body of the first cylinder 9 is hinged with the housing 1, and the piston of the first cylinder 9 One end of the rod and the end cover 8 are hinged through a bearing seat 8.1 fixed on the end cover 8, and the housing 1 is provided with a valve for closing the sewage outlet 1.3 when the end cover 8 is pushed by the first cylinder 9. Lock the locking piece 11 of the end cover 8, one end of the locking piece 11 is hingedly connected with the housing 1, the other end of the locking piece 11 is hinged with the piston rod of the second cylinder 10, and the cylinder body of the second cylinder 10 is connected with the shell Body 1 is hinged. Both the first cylinder 9 and the second cylinder 10 are electrically connected to the controller.

The principle of its normal working state is that the first cylinder 9 and the second cylinder 10 are both closed, the sewage flows into the lower chamber of the shell from the water inlet pipe, the sewage is purified through the filter pipe, and under the action of water pressure, the clean water flows to the upper chamber. In the chamber, and sent to the external water tank through the outlet pipe. Complete the sewage purification process.

The working principle of the backwashing process is, first of all, close the valve of the water inlet pipe, open the end cover, and drain the sewage in the lower chamber. During this process, the clean water in the upper chamber backwashes the filter tube under gravity, and then closes the end. cover, open the air pump, and make the first air inlet pipe deliver high-pressure air to the lower chamber through the reversing valve, press the residual water on the filter tube to dry up through the high-pressure air and discharge it from the outlet pipe, and then adjust the reversing valve to make the high-pressure air flow from the The second air inlet pipe enters the upper chamber, and at the same time closes the water outlet pipe and opens the end cover, so that the high-pressure air blows off the dry and agglomerated particles on the filter pipe to complete the backwashing of the filter pipe. The end cap is then closed to complete the backwashing process.

Of course, as a preference, conventional water backwashing can be added before or after the high-pressure air backwashing process.

The preferred embodiments of the present invention have been described above, but should not be construed as limiting the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to change, and all the various changes made within the protection scope of the independent requirements of the utility model are all within the protection scope of the utility model.

Claims (4)

1. A solid-liquid separation filter, which comprises a housing (1), is characterized in that: the inner cavity of the housing (1) is divided into upper chamber (1.1) and The partition (2) of the lower chamber (1.2), the outer wall of the partition (2) is fixed and sealed with the inner wall of the housing (1), and several filter tubes are arranged in the lower chamber (1.2) (3), the lower ends of all the filter tubes (3) are sealed, the upper ends of the filter tubes (3) are respectively fixed with the partition (2), and the joints of the filter tubes (3) and the partition (2) are sealed, the partition The positions corresponding to the filter tubes (3) on the plate (2) are provided with through holes (2.1) for connecting the filter tubes (3) with the upper chamber (1.1), and the housing (1) is provided with There is a water inlet pipe (4) and a first air inlet pipe (6) communicating with the lower chamber (1.2), and an outlet pipe (5) and a second air inlet pipe (7) communicating with the upper chamber (1.1), The water inlet pipe (4) is connected with the external sewage source, the water outlet pipe (5) is connected with the water tank, and the first air inlet pipe (6) and the second air inlet pipe (7) are respectively connected with the air pump. 2. The solid-liquid separation filter according to claim 1, characterized in that: one end of the first inlet pipe (6) and the second inlet pipe (7) communicates with the output end of the air pump through a reversing valve , the other end of the first air inlet pipe (6) communicates with the water inlet pipe (4) through a valve, and the other end of the second air inlet pipe (7) communicates with the water outlet pipe (5) through a valve. 3. The solid-liquid separation filter according to claim 1, characterized in that: the lower end of the housing (1) is provided with a sewage outlet (1.3), and the housing (1) is close to the sewage outlet (1.3). The position forms a funnel (1.4) with a large top and a small bottom, and the drain outlet (1.3) is provided with an end cover (8) for opening and closing the drain outlet (1.3). 4. The solid-liquid separation filter according to claim 3, characterized in that: the housing (1) is provided with a first cylinder (9) and a second cylinder (10), and the end cover (8) One end of the first cylinder (9) is hinged to the housing (1), the cylinder body of the first cylinder (9) is hinged to the housing (1), and one end of the piston rod of the first cylinder (9) and the end cover (8) are fixed to the The bearing seat (8.1) on the end cover (8) is hinged, and the housing (1) is provided with a lock for closing the sewage outlet (1.3) when the end cover (8) is pushed by the first cylinder (9). Tighten the locking block (11) of the end cover (8), one end of the locking block (11) is hingedly connected with the housing (1), and the other end of the locking block (11) is connected with the piston rod of the second cylinder (10). Hinged, the cylinder body of the second cylinder (10) is hinged with the housing (1).