Novel double-layer horizontal sedimentation tank

Abstract

The utility model discloses a novel double-layer horizontal-flow sedimentation tank which comprises an upper-layer horizontal-flow sedimentation tank and a lower-layer horizontal-flow sedimentation tank, the upper-layer horizontal-flow sedimentation tank and the lower-layer horizontal-flow sedimentation tank are used for independently feeding and discharging water and share a sludge hopper, the upper-layer horizontal-flow sedimentation tank is used for feeding water through an upper-layer water inlet lattice wall, and the lower-layer horizontal-flow sedimentation tank is used for feeding water through a lower-layer water inlet lattice wall area and three lower-layer water inlet pipes arranged at equal intervals, so that the water feeding uniformity is ensured; the bottom of the lower-layer water inlet lattice wall area is sealed, disturbance of sludge is avoided, and precipitated water is guided out through water outlet grooves and collected to a main water outlet channel to be discharged. According to the design, the structural advantages of the horizontal-flow sedimentation tank are reserved, efficient and energy-saving sedimentation treatment is achieved, the vertical-flow sedimentation tank is suitable for upgrading and reconstruction of sewage treatment plants or projects with shortage of land resources, remarkable economic and social benefits are achieved, and the problem that the area of construction land is limited is solved through the vertical stacking design.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely is a novel double -deck horizontal flow type sedimentation tank. BACKGROUND

[0002] With the rapid development of urban construction, in the newly built sewage treatment plant or old plant upgrading project, the construction land area is limited, the traditional circular radial flow type sedimentation tank and single -deck horizontal flow type sedimentation tank occupies the land area, resulting in the limited project process selection.

[0003] Therefore, a new type of sedimentation tank with small land area and strong processing capacity is needed to solve this problem. UTILITY MODEL CONTENT

[0004] The scheme increases the number of sedimentation tanks on the land area occupied by the single -deck horizontal flow type sedimentation tank, thereby improving the processing capacity of the sedimentation tank, to solve the problem of limited construction land area and using activated sludge process project.

[0005] A novel double -deck horizontal flow type sedimentation tank, comprising:

[0006] The upper horizontal flow type sedimentation tank and the lower horizontal flow type sedimentation tank are stacked one on top of the other and form independent sedimentation spaces respectively;

[0007] The sludge hopper is arranged at the water inlet end of the lower horizontal flow type sedimentation tank and is used to accommodate the sludge generated by the upper horizontal flow type sedimentation tank and the lower horizontal flow type sedimentation tank;

[0008] The water distribution weir plate is arranged at the water inlet end of the upper horizontal flow type sedimentation tank and the lower horizontal flow type sedimentation tank, and the water inlet water quantity of the two is distributed by adjusting the height of the water distribution weir plate;

[0009] The upper water inlet flower wall is connected with the water inlet end of the upper horizontal flow type sedimentation tank;

[0010] The lower water inlet flower wall area is connected with the water inlet end of the lower horizontal flow type sedimentation tank, and the lower water inlet flower wall area is provided with a lower water inlet pipe;

[0011] The water outlet groove is arranged at the water outlet end of the upper horizontal flow type sedimentation tank and the lower horizontal flow type sedimentation tank respectively, and is used to guide the water after sedimentation out;

[0012] The total water outlet channel is connected with the water outlet groove and is used to discharge the water outlet of the upper horizontal flow type sedimentation tank and the lower horizontal flow type sedimentation tank after being collected.

[0013] As a preferred scheme of the utility model, the upper horizontal flow type sedimentation tank and the lower horizontal flow type sedimentation tank independently inlet water and independently outlet water, and share the sludge hopper.

[0014] As a preferred solution of the present invention, the structures of the upper layer horizontal flow sedimentation tank and the lower layer horizontal flow sedimentation tank are the same as those of ordinary horizontal flow sedimentation tanks.

[0015] As a preferred solution of the present invention, the bottom of the lower water inlet wall area is a sealed structure to prevent the lower water inlet from disturbing the sludge in the sludge hopper.

[0016] As a preferred solution of the present invention, three lower water inlet pipes are equidistantly provided to ensure uniform water inlet.

[0017] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0018] The utility model increases the number of sedimentation tanks per unit area through a double-layer stacking design, thereby improving the treatment capacity of the sedimentation tank; the bottom sealing design of the lower water inlet flower wall area avoids the disturbance of the sludge in the sludge hopper by the lower water inlet; the reasonable arrangement of the three lower water inlet pipes ensures the uniformity of the water inlet; the upper and lower sedimentation tanks have independent water inlet and outlet, and share a common sludge hopper, realizing efficient and energy-saving sedimentation treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Fig. 1 This is a plan view of a new double-layer horizontal flow sedimentation tank;

[0020] Fig. 2 This is a longitudinal cross-sectional view of a new double-layer horizontal flow sedimentation tank;

[0021] Fig. 3 This is a transverse cross-sectional view of a new double-layer horizontal flow sedimentation tank.

[0022] In the figure: 1. Upper horizontal flow sedimentation tank; 2. Lower horizontal flow sedimentation tank; 3. Sludge hopper; 4. Water distribution weir; 5. Upper water inlet rosette; 6. Lower water inlet rosette area; 7. Lower water inlet pipe; 8. Outlet trough; 9. Main outlet channel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Example 1

[0025] like Figs. 1 to 3 As shown, a specific embodiment of a novel double-layer horizontal flow sedimentation tank described in the utility model includes:

[0026] The upper horizontal flow type sedimentation tank 1, the lower horizontal flow type sedimentation tank 2, the sludge hopper 3, the water distribution weir plate 4, the upper water inlet flower wall 5, the lower water inlet flower wall area 6, the lower water inlet pipe 7, the water outlet tank 8 and the total water outlet channel 9 and the like structures;

[0027] The upper horizontal flow type sedimentation tank 1 and the lower horizontal flow type sedimentation tank 2 are stacked one above the other to form a double-layer sedimentation tank, share the sludge hopper 3, the upper horizontal flow type sedimentation tank 1 takes in water through the upper water inlet flower wall 5, discharges water through the water outlet tank 8 and discharges sludge through the sludge hopper 3; the lower horizontal flow type sedimentation tank 2 takes in water through the lower water inlet flower wall area 6, discharges water through the water outlet tank 8 and discharges sludge through the sludge hopper 3; the upper horizontal flow type sedimentation tank 1 and the lower horizontal flow type sedimentation tank 2 adjust the water intake of each other through the water distribution weir plate 4, and the water intake of both is distributed by adjusting the height of the water distribution weir plate 4; the water discharged from the water outlet tank 8 is collected into the total water outlet channel 9 to discharge the sedimentation tank, the lower water inlet flower wall area 6 takes in water through the three lower water inlet pipes 7, which can effectively improve the uniformity of water intake, and the bottom of the lower water inlet flower wall area 6 is designed in a closed manner to avoid disturbing the sludge in the sludge hopper by the lower water inlet.

[0028] The upper horizontal flow type sedimentation tank 1 and the lower horizontal flow type sedimentation tank 2 both have the structural design form of the horizontal flow type sedimentation tank, i.e. water intake-water distribution area-sludge hopper-sedimentation area-water outlet area.

[0029] The components in the present application are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by those skilled in the art through technical manuals or through conventional experimental methods, and therefore will not be described in detail here.

[0030] Although the specific embodiments of the present application have been described in detail above, the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application, and modifications or deformations without creative labor are still within the protection scope of the present application.

Claims

1. A new type of double-deck horizontal-flow sedimentation tank, characterized in that, The utility model relates to a double-layer horizontal flow sedimentation tank, comprising: an upper horizontal flow sedimentation tank (1) and a lower horizontal flow sedimentation tank (2) stacked one above the other, each forming an independent sedimentation space; a sludge hopper (3) arranged at the water inlet end of the lower horizontal flow sedimentation tank (2) for containing sludge produced by the upper horizontal flow sedimentation tank (1) and the lower horizontal flow sedimentation tank (2); a water distribution weir plate (4) arranged at the water inlet end of the upper horizontal flow sedimentation tank (1) and the lower horizontal flow sedimentation tank (2) for distributing the water inflow of the two by adjusting the height of the water distribution weir plate (4); an upper water inlet flower wall (5) connected to the water inlet end of the upper horizontal flow sedimentation tank (1); a lower water inlet flower wall area (6) connected to the water inlet end of the lower horizontal flow sedimentation tank (2), the lower water inlet flower wall area (6) being provided with a lower water inlet pipe (7); an outlet channel (8) arranged at the water outlet end of the upper horizontal flow sedimentation tank (1) and the lower horizontal flow sedimentation tank (2) respectively for guiding the settled water out of the tanks; a total outlet channel (9) connected to the outlet channels (8) for collecting and discharging the water outlet of the upper horizontal flow sedimentation tank (1) and the lower horizontal flow sedimentation tank (2); the bottom of the lower water inlet flower wall area (6) is of a sealed structure to avoid disturbance of the sludge in the sludge hopper (3) by the water inlet of the lower horizontal flow sedimentation tank (2); the lower water inlet pipe (7) is provided with three equidistant pipes to ensure uniform water inflow.

2. A new type of double-deck horizontal-flow sedimentation tank according to claim 1, characterized in that: The upper horizontal flow sedimentation tank (1) and the lower horizontal flow sedimentation tank (2) independently receive water inflow and discharge water outlet, and share the sludge hopper (3).

3. A new type of double-deck horizontal-flow sedimentation tank according to claim 1, characterized in that: The upper horizontal flow sedimentation tank (1) and the lower horizontal flow sedimentation tank (2) have the same structure as that of a common horizontal flow sedimentation tank.

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