CN203807278U - An urban sewage filtration and purification system - Google Patents

Abstract

The utility model relates to an urban sewage filtering and purifying system, which comprises a coarse filtering tank, a sand settling tank and a fine filtering tank, wherein the coarse filtering tank and the sand settling tank are communicated with each other through a water permeable port; the fine filtering tank is communicated with the sand sedimentation tank through a connecting pipe; the coarse filtration tank comprises a coarse filtration bin arranged on the upper layer and a deposition bin arranged on the lower layer; the upper coarse filtration bin is provided with filtration cotton, and the upper side surface of the upper coarse filtration bin is provided with a sewage inlet; the filtering cotton is arranged on the upper pond bottom; the bottom of the upper layer pool is provided with a plurality of water permeable holes; the lower-layer deposition bin comprises a sewage draining outlet arranged on the side surface of the lower layer and a water permeable outlet arranged on the other side; a particle filter material layer is arranged at the water permeable port; the particle filter material layer is fixed on the water permeable port through a screen plate. A municipal sewage filtration purification system, it adopts stage treatment, rational in infrastructure, effectively purifies municipal sewage.

Description

An urban sewage filtration and purification system

technical field

The utility model relates to the field of sewage treatment, in particular to an urban sewage filtration and purification system.

Background technique

Water treatment refers to the purification of polluted industrial wastewater or river water through a series of water treatment equipment to meet the water quality standards stipulated by the state. Water treatment, including water supply treatment, sewage and rainwater treatment, etc. refers to the process of changing the composition of water through man-made or natural phenomena. With the expansion of the urban population, more and more domestic sewage is produced by people living in the city. If it is discharged directly without treatment, it will cause the river to stink, breed mosquitoes and flies, and cause troubles to the lives of urban residents. However, in the current sewage treatment equipment, there are still many suspended solids in the treated water, and the deposited sludge is not easy to clean from the equipment and difficult to maintain.

Contents of the invention

The technical problem to be solved by the utility model is: in order to overcome the above-mentioned problems, a city sewage filtration and purification system is provided, which adopts hierarchical treatment, has a reasonable structure, and can effectively purify the city sewage.

The technical solution adopted by the utility model to solve the technical problem is: a kind of urban sewage filtration and purification system, including a coarse filter tank, a sedimentation tank and a fine filter tank, and the coarse filter tank and the sedimentation tank are connected to each other through a water permeable opening ; The fine filter is communicated with the grit chamber through a connecting pipe;

The coarse filter tank includes a coarse filter bin arranged on the upper layer and a sedimentation bin arranged on the lower layer; the upper layer coarse filter bin is provided with a filter cotton and a sewage inlet on the upper side; the filter cotton is arranged on the On the bottom of the upper pool; the bottom of the upper pool is provided with a number of permeable holes; the sedimentation chamber of the lower layer includes a sewage discharge port arranged on the side of the lower layer and a water permeable port arranged on the other side; the permeable port is provided with particles filter material layer; the granular filter material layer is fixed on the permeable port through a mesh plate;

The grit chamber includes a swirl grit chamber and a conical sand bucket arranged on the lower floor; a propeller is arranged in the middle of the grit chamber; the propeller is connected to a variable speed motor arranged on the top; the The variable-speed motor is electrically connected with the external power supply; the upper part of the cyclone grit chamber is provided with a medicine box; the medicine box is equipped with liquid medicine for flocculating organic matter in sewage and neutralizing sewage; The drug pipe is connected to the swirling sand settling tank; the connecting pipe is arranged in the middle of the upper layer of the swirling sand settling tank; the connecting pipe is provided with a water pump and a water acid-base tester; the bottom of the conical sand bucket is A sand discharge pipe is provided; the water pump is electrically connected to an external power supply;

The inside of the fine filter is provided with a high-density fiber layer, and the bottom is provided with a clean water drain.

Further, the propeller includes a first blade arranged at the bottom and a second blade arranged at the middle.

As a preferred solution, a sand-water separator is arranged on the sand discharge pipe.

As a preferred solution, the drug delivery tube is provided with a flow control valve.

As a preferred solution, the filter plate is arranged between the connecting pipe and the swirl sedimentation tank.

The beneficial effect of the utility model is: an urban sewage filtration and purification system, which adopts classification treatment, uses a coarse filter to filter large solid particles, and then uses a sand settling tank to precipitate fine particles by rotating centrifugal mode, and uses flocculant potion to promote particle purification. Accumulation, or adding a neutralizer to improve the acidity and alkalinity of sewage, and then pass through a fine filter to further treat fine particles and effectively purify urban sewage.

Description of drawings

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

Fig. 1 is a schematic diagram of the overall structure of an urban sewage filtration and purification system described in the present invention.

The marks in the accompanying drawings are described as follows: 1, coarse filter tank, 11, coarse filter bin, 12, sedimentation bin, 121, sewage outlet, 13, filter cotton, 14, upper pool bottom, 15, sewage inlet, 2, sedimentation Pond, 21, cyclone grit chamber, 22, conical sand bucket, 221, sand discharge pipe, 222, sand-water separator, 23, filter plate, 3, fine filter tank, 31, high-density fiber layer, 32, Clean water outlet, 4, water permeable port, 41, granular filter material layer, 42, screen plate, 5, propeller, 51, first blade, 52, second blade, 6, variable speed motor, 7, medicine box, 71, Drug delivery tube, 72, flow control valve, 8, connecting pipe, 81, water pump, 82, water quality acid-base tester.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

A kind of urban sewage filtration and purification system as shown in Figure 1, comprises rough filter tank 1, grit chamber 2 and fine filter tank 3, and described coarse filter tank 1 and grit chamber 2 communicate with each other through permeable port 4; The fine filter 3 is communicated with the grit chamber 2 through the connecting pipe 8; the coarse filter 1 includes a coarse filter bin 11 arranged on the upper floor and a sedimentation bin 12 arranged on the lower floor; the upper coarse filter The warehouse 11 is provided with a filter cotton 13, and the upper side is provided with a sewage inlet 15; the filter cotton 13 is arranged on the bottom of the upper pool 14; the bottom of the upper pool 14 is provided with a number of permeable holes; The deposition bin 12 includes a sewage outlet 121 arranged on the side of the lower layer and a water-permeable port 4 arranged on the other side; the water-permeable port 4 is provided with a granular filter material layer 41; Fixed on the permeable port 4; the grit chamber 2 includes a swirl grit chamber 21 and a conical sand bucket 22 arranged on the lower floor; the middle part of the grit chamber 2 is provided with a propeller 5; the propeller 5 It is connected with the variable-speed motor 6 arranged on the top; the variable-speed motor 6 is electrically connected with the external power supply; the top of the swirling sand settling tank 21 is provided with a medicine box 7; the inside of the medicine box (7) There is liquid medicine for flocculating organic matter in sewage and neutralizing sewage; the medicine box 7 communicates with the swirling sand settling tank 21 through a drug delivery pipe 71; ; The connecting pipe 8 is provided with a water pump 81 and a water quality acid-base tester 82; the bottom of the tapered sand bucket 22 is provided with a sand discharge pipe 221; the described water pump 81 is electrically connected to an external power supply; The fine filter 3 described above is provided with a high-density fiber layer 31 inside, and a clean water outlet 32 is provided at the bottom.

The propeller 5 includes a first blade 51 arranged at the bottom and a second blade 52 arranged at the middle. The sand discharge pipe 221 is provided with a sand water separator 222 . The drug delivery tube 71 is provided with a flow control valve 72 . The filter plate 23 arranged between the connecting pipe 8 and the swirling flow grit chamber 21 .

The urban sewage filtration and purification system described in the utility model adopts classification treatment, utilizes the coarse filter tank 1 to filter solid large particles, and then utilizes the grit chamber 2 to precipitate fine particles by means of rotating centrifugation, and uses flocculant potion to promote particle Aggregation, or adding a neutralizer to improve the acidity and alkalinity of the sewage, and then pass through the fine filter 3 to further treat fine particles and effectively purify urban sewage.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (5)

1. a kind of urban sewage filtration purification system is characterized in that: comprise coarse filter tank (1), grit chamber (2) and fine filter tank (3), described coarse filter tank (1) and grit chamber ( 2) communicate with each other through the permeable port (4); the fine filter tank (3) is communicated with the grit chamber (2) through the connecting pipe (8); Described coarse filter tank (1) comprises the coarse filter chamber (11) that is arranged on the upper floor and the sedimentation chamber (12) that is arranged on the lower floor; Described upper floor coarse filter chamber (11) is provided with filter cotton (13), The upper side is provided with a sewage inlet (15); the filter cotton (13) is arranged on the bottom of the upper pool (14); the bottom of the upper pool (14) is provided with a number of permeable holes; the deposition of the lower layer The bin (12) includes a sewage outlet (121) arranged on the side of the lower layer and a water outlet (4) arranged on the other side; the water outlet (4) is provided with a particle filter material layer (41); the particles The filter material layer (41) is fixed on the water permeable port (4) by the screen plate (42); Described grit chamber (2) comprises swirling flow grit chamber (21) and the conical sand bucket (22) that is arranged on the lower floor; Described grit chamber (2) middle part is provided with propeller (5); The propeller (5) is connected to each other with the variable speed motor (6) that is arranged on the top; the described variable speed motor (6) is electrically connected with the external power supply; (7); the medicine box (7) is communicated with the swirl grit chamber (21) by the drug delivery pipe (71); the connecting pipe (8) is arranged on the upper layer of the swirl grit chamber (21) middle part; the connecting pipe (8) is provided with a water pump (81) and a water acid-base tester (82); the bottom of the conical sand bucket (22) is provided with a sand discharge pipe (221); the described The water pump (81) is electrically connected to an external power source; the fine filter (3) is provided with a high-density fiber layer (31) inside, and a clean water outlet (32) is provided at the bottom. 2. The urban sewage filtration and purification system according to claim 1, characterized in that: the propeller (5) includes a first blade (51) arranged at the bottom and a second blade (52) arranged at the middle. 3. The urban sewage filtration and purification system according to claim 1, characterized in that: the sand discharge pipe (221) is provided with a sand-water separator (222). 4. The urban sewage filtration and purification system according to claim 1, characterized in that: the drug delivery pipe (71) is provided with a flow control valve (72). 5. The urban sewage filtration and purification system according to claim 1, characterized in that: a filter plate (23) is provided between the connecting pipe (8) and the swirl sedimentation tank (21).