CN202223979U - Integrated inclined tube sedimentation tank - Google Patents

Abstract

The utility model relates to an integrated inclined tube sedimentation tank. The purpose of this utility model is to provide an integrated inclined tube sedimentation tank integrating functions such as water distribution, coagulation, sedimentation and filtration, which can enhance its load impact resistance, improve sewage treatment efficiency, and ensure that the concentration of suspended solids in the effluent can Meet the design requirements. The technical scheme of the utility model is: an integrated inclined tube sedimentation tank, including a tank body, and horizontal water inlet pipes and drain pipes respectively installed on the upper parts of the two side walls of the tank body. Two baffles divide the pool body into a reaction zone, a separation zone and a filtration zone in turn, and the bottom of the baffles extends to the bottom of the pool and is higher than the bottom of the pool. The utility model is suitable for removing impurities and suspended matter in sewage.

Description

Integrated inclined tube sedimentation tank

technical field

The utility model relates to a sedimentation tank, in particular to an integrated inclined tube sedimentation tank. It is suitable for removing impurities and suspended solids in sewage. the

Background technique

In the process of mining ore dressing, boiler dedusting, and artificial production of sand and gravel aggregates, high-turbidity sewage containing a large amount of suspended particles is often produced. When using ordinary inclined tube sedimentation tanks to treat this type of sewage, in order to improve the treatment efficiency, it is often necessary to add flocculants in the form of special dosing tanks or pipelines, and in order to further remove fine particles in the sewage, sedimentation in inclined tubes is also required. Add a filter pool after the pool. Adopting this independent setting method not only occupies a large area and increases project investment, but also the inclined tube sedimentation tank has poor adaptability to changes in water quantity and water quality, and it is difficult to ensure that the concentration of suspended solids in the effluent can meet the design requirements in actual engineering.

Contents of the invention

The technical problem to be solved by the utility model is to provide an integrated inclined tube sedimentation tank integrating the functions of water distribution, coagulation, sedimentation and filtration, which can enhance its load impact resistance and improve the quality of sewage. The treatment efficiency ensures that the concentration of suspended solids in the effluent can meet the design requirements. the

The technical solution adopted by the utility model is: an integrated inclined tube sedimentation tank, including a tank body, and horizontal water inlet pipes and drain pipes respectively installed on the upper parts of the two side walls of the tank body. Two baffles are arranged in the direction, and the pool body is divided into a reaction area, a separation area and a filtration area in turn, and the bottom of the baffles extends to the bottom of the pool and is higher than the bottom of the pool.

A dosing pipe and a stirrer are installed vertically on the top of the reaction zone.

A perforated baffle plate connected to the bottom of the pool is provided in the separation area, and several round holes are evenly arranged on the perforated baffle plate.

The middle and lower part of the filtration zone is a sedimentation zone, and above the sedimentation zone, there is an inclined tube packing, above which is a fiber ball filter layer, and above the fiber ball filter layer is a clean water zone, and above the clean water zone is a weir groove located at the upper part of the filter zone. The weir groove is connected with the drainage pipe, and the bottom of the filter area is the sludge area.

The fiber ball filter layer is formed by binding fiber filaments, and the thickness of the filter layer is about 200-500mm.

A flushing air pipe is provided below the inclined tube filler, and one end of the flushing air pipe is connected to a high-pressure air pump outside the body of the pool. The diameter of the flushing air pipe is 50-80mm.

The inclination angle from the bottom edge of the pool body to the center is 50°-60°.

In the sedimentation area, a sludge pipe is arranged along the bottom of the pool. One end of the sludge pipe extends to the center of the bottom of the pool, and the other end extends out of the pool body.

The beneficial effects of the utility model are: the pool body is added flocculant at the water inlet and agitator is set for stirring, so that the wastewater and the medicament are fully contacted and mixed, the sedimentation effect is improved, and the flow rate of the sewage is reduced by using the baffle , to eliminate part of the kinetic energy; at the same time, a fiber ball filter layer is set on the inclined tube filler to further remove the residual fine suspended particles contained in the wastewater after sedimentation treatment.

Therefore, the utility model can integrate functions such as water distribution, coagulation, sedimentation and filtration, and one pool plays the role and effect of multiple pools, occupies a small area, reduces engineering investment, and improves sewage treatment efficiency and sedimentation tank Adaptability to changes in water quantity and quality.

Description of drawings

Figure 1 is a structural layout diagram of the utility model.

Detailed ways

As shown in FIG. 1 , this embodiment includes a pool body 1 , and a water inlet pipe 2 and a drain pipe 3 are arranged horizontally on the upper part of the opposite two side walls of the pool body 1 . The bottom of the pool body 1 is funnel-shaped, and the inclination angle from the bottom edge of the pool body to the center is 50°~60°. Two baffles 4 are arranged in the pool body 1 along the water flow direction, and the pool body 1 is divided into a reaction zone 5, a separation zone 6 and a filtration zone in turn. The baffle plate 4 extends to the bottom of the pool body 1 without contacting with the bottom of the pool, and the sewage can flow from below the baffle plate 4 .

A dosing tube 9 and a mixer 10 are installed vertically on the top of the reaction zone 5 .

The separation area 6 is built with a perforated baffle 11, which is connected to the bottom of the pool and has a number of round holes 11-1 evenly opened thereon. Sewage can flow through the top of the perforated baffle 11 and the circular hole 11-1, and the perforated baffle acts as a barrier and dissipates energy.

The filter area accounts for about half of the pool body 1, and the middle and lower part of the filter area is the sedimentation area 7, and the upper part of the sedimentation area 7 is successively provided with an inclined pipe filler 12, a fiber ball filter layer 14, a clear water area 15 and a weir groove 16 , the drain pipe 3 is connected to the weir groove 16 . Below the inclined tube packing 12, a flushing air pipe 17 is arranged, and one end of the flushing air pipe 17 is connected to a high-pressure air pump outside the pool body 1. The flushing air pipe 17 can regularly flush the inclined pipe packing 12 and the fiber ball filter layer 14 to avoid blockage. The bottom of the filter zone is the sludge zone 8 .

A sludge pipe 13 is arranged at the bottom of the filter area. One end of the sludge pipe 13 leads into the sludge area 8 (that is, the center of the pool bottom), and the other end extends out of the pool body 1 .

The treatment method of the utility model is: the sewage enters the reaction zone 5 from the water inlet pipe 2, and under the action of the mixer 10, the sewage and the flocculant fully contact and mix. The sewage flowing out from the bottom of the reaction zone 5 enters the separation zone 6, and under the blocking effect of the perforated baffle plate 11, the flow velocity is reduced, part of the kinetic energy is eliminated, and part of the suspended particles are removed. An inclined tube filler 12 is arranged above the sedimentation zone 7, and the suspended particles begin to separate from the sewage by using the difference in speed between the water and the particles, enter the sludge zone 8, and discharge out of the pool through the sludge tube 13. The fiber ball filter layer 14 is arranged above the inclined tube packing 12, and further removes the residual fine particles in the waste water through interception, adsorption, sieving and other functions. When the water in the clear water area 15 reaches a certain height, it will be discharged by the drainpipe 3 through the weir groove 16 .

Claims (8)

1. An integrated inclined tube sedimentation tank, including a tank body (1), and horizontal water inlet pipes (2) and drain pipes (3) respectively installed on the upper parts of the two side walls of the tank body (1). It is characterized in that two baffles (4) are arranged in the pool body (1) along the water flow direction, and the pool body (1) is divided into a reaction zone (5), a separation zone (6) and a filtration zone in turn, and the baffles ( 4) The bottom end extends to the bottom of the pool and is higher than the bottom of the pool. 2. The integrated inclined tube sedimentation tank according to claim 1, characterized in that: the top of the reaction zone (5) is vertically installed with a dosing pipe (9) and a mixer (10). 3. The integrated inclined tube sedimentation tank according to claim 1, characterized in that: the separation area (6) is provided with a perforated baffle (11) connected to the bottom of the tank, and the perforated baffle is evenly arranged Some round holes (11-1). 4. The integrated inclined tube sedimentation tank according to claim 1, characterized in that: the middle and lower part of the filtration area is a settling area (7), and the inclined tube packing (12) is arranged above the settling area, and the inclined tube packing (12 ) is the fiber ball filter layer (14), above the fiber ball filter layer (14) is the clear water area (15), above the clear water area is the weir groove (16) located at the upper part of the filter area, and the weir groove is connected with the drainage pipe (3) , the bottom of the filtration zone is the sludge zone (8). 5 . The integrated inclined tube sedimentation tank according to claim 4 , characterized in that: the fiber ball filter layer ( 14 ) is formed by binding fiber filaments, and the thickness of the filter layer is about 200-500 mm. 6. The integrated inclined tube sedimentation tank according to claim 4, characterized in that: a flushing air pipe (17) is provided under the inclined pipe filler (12), and one end of the flushing air pipe is connected to the high pressure outside the tank body (1) Air pump, the diameter of the flushing air pipe (17) is 50-80mm. 7. The integrated inclined tube sedimentation tank according to claim 1, characterized in that: the inclination angle from the bottom edge to the center of the tank body (1) is 50°~60°. 8. The integrated inclined tube sedimentation tank according to claim 4, characterized in that a sludge pipe (13) is arranged along the bottom of the pond in the sedimentation area (7), and one end of the sludge pipe extends to the center of the bottom of the pond , and the other end protrudes from the pool body (1).

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