CN100546692C - Sewage treatment device containing solid impurities - Google Patents

Abstract

The invention relates to equipment for purifying various production and domestic sewage only containing solid impurities. According to the technical scheme provided by the invention, a collecting region of solid impurities is arranged at the bottom of a cylindrical sedimentation device, a discharge port is arranged on the collecting region, a main sedimentation region connected with the collecting region is arranged in the middle of the cylindrical sedimentation device, a plurality of vertical stable partition plates are arranged on the inner wall surface of the main sedimentation region, an overflow sedimentation region is arranged at the upper part of the cylindrical sedimentation device, a plurality of overflow grooves are arranged in the overflow sedimentation region, a communicating pipe for communicating adjacent overflow grooves is arranged between the bottoms of the overflow grooves, the communicating pipe is connected with a liquid discharge port arranged on the outer wall of the overflow sedimentation region, the inlet end of a liquid inlet pipe is connected with an external sewage pipe, and the outlet end of the liquid inlet pipe is inserted into the main. The invention has the advantages of small floor area, low investment cost, reasonable pollution discharge treatment, simple operation and no need of external mechanical cleaning, and can treat solid impurities and oil stains in sewage completely.

Description

Sewage treatment with solid impurities

technical field

The present invention is a kind of sewage treatment equipment, specifically a kind of equipment for purification treatment of production and domestic sewage, which is suitable for the purification treatment of all kinds of sewage containing only solid impurities.

Background technique

The existing methods for treating sewage with solid impurities are single, and are mainly supported by various types of sedimentation tanks (concentration tanks, etc.).

The existing various sedimentation tanks have the following problems: firstly, they occupy a large area and have high construction costs, which are not suitable for small-scale production enterprises to carry out large-scale sewage treatment; secondly, the treatment of sediments is more complicated and occupies a large area , can not be processed reasonably in time; the third is that the (concentration pool, etc.) operation is complicated, and mechanical equipment is required to clean up continuously.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a set of solid-impurity sewage treatment with small footprint, low construction cost, reasonable sewage treatment, simple operation and no need for external mechanical cleaning.

According to the technical scheme provided by the invention, a collection area for solid impurities is provided at the bottom of the cylindrical settling device, a discharge port is provided on the collecting area, and a main settling area connected with the collecting area is provided in the middle of the cylindrical settling device. The inner wall of the main settlement area is provided with a number of vertical stable partitions, and the upper part of the cylindrical settlement device is provided with an overflow settlement area, and a number of overflow tanks are set in the overflow settlement area. There is a connecting pipe connecting adjacent overflow tanks, the connecting pipe is connected with the liquid discharge port arranged on the outer wall of the overflow settlement area, the inlet end of the liquid inlet pipe is connected with the external sewage pipe, and the outlet of the liquid inlet pipe The end is inserted in the main settlement area.

The collection area is in the shape of an inverted cone with a discharge opening at the bottom. The overflow settlement area is in the shape of a cylinder, and the several overflow tanks arranged on the upper part of the overflow settlement area are respectively concentric socketed cylinders with gradually increasing radii. At this time, the liquid inlet pipe passes through the overflow Center of the subsidence zone. A plurality of vertical overflow pipes are respectively arranged in each cylindrical overflow tank, and the lower ends of the overflow pipes pass through the bottom of the overflow tank. The main settling area is cylindrical, the cross-section of the stable partition is concentric and radial, and the liquid inlet pipe is set at the center of the main settling area.

A water baffle is arranged below the outlet at the lower end of the liquid inlet pipe. The liquid inlet pipe is connected with the drainage pipes of the stabilization tank and the degreasing tank. The feed pipe is arranged at the bottom of the stabilization tank, and the discharge pipe is arranged on the upper part. The sieve plate and the degreasing tank are arranged under the discharge pipe, and the sieve plate is covered on the Above the degreasing basin. The drainage pipe is connected with the degassing pool, and the diversion pipe of the degassing pool is connected with the liquid inlet pipe.

The invention has the advantages of small floor area, low investment and construction cost, reasonable sewage treatment, simple operation and no need for external mechanical cleaning, and can clean solid impurities and oil pollution in sewage to meet discharge standards.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Detailed ways

As shown in the figure: a collection area 15 for solid impurities is set at the bottom of the cylindrical settling device, a discharge port 16 is provided on the collecting area 15, and a main settling area connected with the collecting area 15 is provided in the middle of the cylindrical settling device 9. Several vertical stable partitions 10 are provided on the inner wall of the main settling area 9, and an overflow settling area 18 is provided on the upper part of the cylindrical settling device. Connected overflow tanks 11, between the bottoms of the overflow tanks 11, a connecting pipe 17 connecting the adjacent overflow tanks 11 to each other is provided, and the connecting pipe 17 is connected to the liquid outlet that is arranged on the outer wall of the overflow settlement area 18 14 are connected, the inlet end of a liquid inlet pipe 8 is connected with the external sewage pipe, the outlet end of the liquid inlet pipe 8 is inserted in the main settlement area 9, preferably the liquid inlet pipe 8 passes through the overflow settlement area 18 Insert in the main settlement area 9 behind the center.

The collection area 15 is in the shape of an inverted cone, and a discharge opening 16 is provided at the bottom thereof. The overflow settling area 18 is cylindrical, and the several overflow tanks 11 arranged in it are cylindrical bodies that are socketed together with the same center and the radius gradually increases. At this time, the liquid inlet pipe 8 passes through the overflow settling area. Center of District 18. A plurality of vertical overflow pipes 12 are arranged in each cylindrical overflow tank 11 , and the overflow pipes 12 pass through the bottom of the overflow tank 11 and are located at the bottom of the overflow settlement area 18 . The main settling area 9 is in the shape of a cylinder, and the cross-sections of several stable partitions 10 arranged on its inner wall are in the shape of concentric rays, and the liquid inlet pipe 8 is arranged at the center of the main settling area 9 . A water baffle 20 is provided below the outlet at the lower end of the liquid inlet pipe 8 . The liquid inlet pipe 8 is connected with the drainage pipe 6 of the stabilizing pool 2 and the degreasing pool 5. The bottom of the stabilizing pool 2 is provided with a feed pipe 1, and the upper part is provided with a discharge pipe 3, and a sieve plate 4 is provided below the discharge pipe 3. And the degreasing pool 5, and the sieve plate 4 covers the top of the degreasing pool 5. The drainage pipe 6 is connected with the degassing pool 7 , and the guide tube 60 of the degassing pool 7 is connected with the liquid inlet pipe 8 .

When working, the sewage enters the stabilization tank 2 from the feed pipe 1 and after being stabilized, it overflows through the discharge pipe 3 and passes through the sieve plate 4. After the solid particles in the sewage are screened out by the sieve plate 4, it enters the degreasing tank 5, and the degreasing The degreaser 5 on the upper part of the pool 5 scrapes off the slick oil floating on the sewage. After being degreased by the degreasing pool 5, it enters the degassing pool 7 through the drainage pipe 6 and stays for a period of time so that the air mixed in the sewage can be removed. Escape, the sewage is basically stable after degassing, enters the central liquid inlet pipe 8 of the main system through the guide pipe 60 at the bottom of the degassing tank 7, enters the main settlement area 9 through the central feeding pipe 8, and the main settlement area 9 A large number of stable partitions 15 installed inside can prevent the sewage from forming an unstable swirling flow and make the sewage flow upwards smoothly. During this period, the bulk materials in the main settling area 9 settle stably, and the sediment enters the conical collection Zone 15, and after accumulating to a certain amount in the collection zone 15, it is discharged through the discharge port 16. After the bulk material settles, the sewage containing finer impurities rises into the slow overflow settlement area 18 along the passage between the stable partitions 10, and is introduced upward into the overflow tank 11 by the overflow pipe 12 in the overflow settlement area 18 In the slow overflow settlement area 18, a large number of overflow pipes 12 and multiple overflow grooves 11 form an ultra-long overflow channel, and the overflow velocity is relatively slow. In such an environment, fine impurities in the sewage can be After effective precipitation is obtained, it flows into the main settlement area 9, and the clear water after sedimentation and removal of impurities enters the overflow tank 11, and finally flows through the connecting pipe 17 between the overflow tanks 11 to the discharge system of the drain port 14 to complete the sewage treatment work.

Claims (6)

1, a kind of apparatus for treating sewage that contains solid impurity, the tubular sedimentation device that comprises vertical setting, it is characterized in that: the bottom of tubular sedimentation device is set to the collecting region of solid impurity (15), on this collecting region (15), be provided with discharge gate (16), the middle part of tubular sedimentation device is provided with the main decanting zone (9) that is connected with collecting region (15), internal face in main decanting zone (9) is provided with the anti-swirl pot (10) of plurality of vertical shape, the top of tubular sedimentation device is provided with overflow decanting zone (18), in overflow decanting zone (18), offer some overflow launders (11), between the bottom of overflow launder (11), be provided with the communicating pipe (17) that adjacent overflow launder (11) is communicated with, this communicating pipe (17) is connected with the leakage fluid dram (14) that is arranged on overflow decanting zone (18) outer wall, the entrance point of feed tube (8) links to each other with the sewage pipe in the external world, and the port of export of feed tube (8) is inserted in the main decanting zone (9); Overflow decanting zone (18) is cylindric, and several overflow launders (11) that are arranged at top, overflow decanting zone (18) are respectively concentric and connect together and cylinder that radius progressively increases, and at this moment, feed tube (8) passes the center of overflow decanting zone (18); Be respectively equipped with the overflow pipe (12) of plurality of vertical shape in each overflow launder cylindraceous (11), the bottom of overflow launder (11) is passed in the lower end of this overflow pipe (12).

2, the apparatus for treating sewage that contains solid impurity according to claim 1 is characterized in that: collecting region (15) is back taper, is provided with discharge gate (16) in its bottom.

3, the apparatus for treating sewage that contains solid impurity according to claim 1 is characterized in that: main decanting zone (9) are cylindric, and the cross section of anti-swirl pot (10) is concentric aplysia punctata, and feed tube (8) is arranged on center, main decanting zone (9).

4, the apparatus for treating sewage that contains solid impurity according to claim 1 is characterized in that: the below in the outlet of feed tube (8) lower end is provided with water fender (20).

5, the apparatus for treating sewage that contains solid impurity according to claim 1, it is characterized in that: feed tube (8) joins with the drainage tube (6) of stabilization pond (2), grease removal tank (5), the bottom of stabilization pond (2) is provided with feed pipe (1), its top is provided with discharge nozzle (3), the below of discharge nozzle (3) is provided with sieve plate (4) and grease removal tank (5), and sieve plate (4) covers the top of grease removal tank (5).

6, the apparatus for treating sewage that contains solid impurity according to claim 5 is characterized in that: drainage tube (6) links to each other with deaeration (7), and the mozzle (60) of deaeration (7) is communicated with feed tube (8).

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