Floating groove type thickener

Abstract

The utility model relates to a floating groove type concentrator which comprises a concentration tank, a mud scraping plate, a mud scraper and a floating groove device, the floating tank device comprises a plurality of fixed brackets respectively arranged in the concentration tank, a square-frame-shaped floating box arranged on the plurality of fixed brackets, a square-frame-shaped water collecting tank arranged on one side of the floating box, a plurality of guide columns respectively arranged in the concentration tank, and siphon water pipes respectively connected between the plurality of guide columns and the water collecting tank; a plurality of water outlet pipes communicated with the plurality of guide columns are respectively arranged in the concentration tank, a plurality of water inlet holes communicated with the concentration tank are respectively formed in the water collecting tank, a concrete layer is arranged at the bottom of the concentration tank, a sludge tank is arranged in the middle of the concrete layer, and a water outlet pipe communicated with the sludge tank is arranged in the sludge tank. And a sludge discharge pipe communicated with the sludge tank is arranged in the concrete layer. The device has the advantages of simple structure, stable and reliable performance and high concentration efficiency.

Description

Technical Field

[0001] The utility model relates to a thickener, in particular to a floating trough type thickener. Background Art

[0002] At present, in the field of sewage treatment, including the treatment process of sewage plants, the sewage treatment process is divided into three levels: primary treatment: physical treatment, through mechanical treatment, such as grille, sedimentation or flotation, to remove stones, gravel, fat, grease, etc. contained in the sewage. Secondary treatment: biochemical treatment, in which pollutants in the sewage are degraded and converted into sludge under the action of microorganisms. Tertiary treatment: advanced treatment of sewage, which includes the removal of nutrients and the disinfection of sewage by chlorine addition, ultraviolet radiation or ozone technology. Depending on the treatment objectives and water quality, some sewage treatment processes may not include all of the above processes.

[0003] The thickening tank in sewage treatment is an important tank for reducing the volume of sludge. The structure design of the thickener equipment in the existing thickening tank is complex. This thickener equipment cannot continuously and evenly collect the supernatant liquid, cannot efficiently separate the sludge in the sewage, greatly reduces the thickening efficiency of the thickening tank, and cannot provide good treated water quality for subsequent treatment facilities. Summary of the Invention

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a floating trough type thickener with simple structure, stable and reliable performance and high thickening efficiency.

[0005] To achieve the above purpose, the utility model adopts a floating trough type thickener, which includes a thickening tank, a sludge scraping plate arranged at the center in the thickening tank, a sludge scraper for driving the sludge scraping plate to rotate, and a floating trough device arranged in the thickening tank. The floating trough device includes a plurality of fixed brackets respectively arranged in the thickening tank, a floating box arranged on the plurality of fixed brackets and in a square shape, a water collecting tank arranged on one side of the floating box and in a square shape, a plurality of guiding columns respectively arranged in the thickening tank, and siphon water pipes respectively connected between the plurality of guiding columns and the water collecting tank. A plurality of water outlet pipes communicated with the plurality of guiding columns are respectively arranged in the thickening tank. A plurality of water inlet holes communicated with the thickening tank are respectively arranged on the water collecting tank. A concrete layer is arranged at the bottom of the thickening tank. A sludge tank is arranged in the middle of the concrete layer. A sludge discharge pipe communicated with the sludge tank is arranged in the concrete layer.

[0006] The beneficial effects of the above structure are as follows: The floating tank device of this floating tank type thickener can be modularly integrated and floated according to the size and shape of the water surface, continuously and evenly collect the supernatant liquid, improve the thickening efficiency of the thickening tank, increase the sludge concentration entering the dewatering machine, and thus reduce the number of dewatering machine equipment, or increase the solid content rate of the dewatered cake of the dewatering machine, reduce the project investment and save the floor area. It is convenient to adjust the water output; it will not form a closed water surface, which is conducive to the easy discharge of floating objects in the tank; at the same time, it is convenient for maintenance. And the sludge in the sludge tank can be discharged from the sludge discharge pipe, which is conducive to improving the thickening efficiency of this floating tank type thickener. Therefore, this floating tank type thickener has the advantages of simple structure, stable and reliable performance, and high thickening efficiency.

[0007] Particularly, the cross-sectional shape of the floating box is in the shape of a "hui" character. The floating box designed with the "hui" character structure has good sealing performance, a firm structural design, high stability, and can withstand greater pressure, which is conducive to improving the working stability of this floating tank type thickener.

[0008] Particularly, a guiding inclined plane for transitional connection with the sludge tank is arranged on the concrete layer. The guiding inclined plane guides the sludge, which can ensure that the sludge can quickly enter the sludge tank, and thus is conducive to improving the thickening efficiency of this floating tank type thickener.

[0009] Particularly, a manual ball valve is arranged on the siphon water pipe. The manual ball valve can realize the connection or closing of the siphon water pipe, which is convenient for the operator to operate.

[0010] Particularly, the multiple fixing brackets are distributed in a rectangular array on the inner side wall of the thickening tank. The fixing brackets are arranged in a rectangular array structure, which can ensure that the connection between the fixing brackets and the floating box is more compact and firm. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0012] Figure 2 It is a top view structural diagram of an embodiment of the present invention.

[0013] Figure 3 It is a sectional view of the floating box of an embodiment of the present invention. Detailed Embodiment

[0014] Such as Figures 1 to 3As shown in the figure, an embodiment of the utility model is a floating tank type thickener, which includes a thickening tank 10, a sludge scraper 11 arranged at the center in the thickening tank 10, a sludge scraper 12 for driving the sludge scraper 11 to rotate, and a floating tank device 20 arranged in the thickening tank 10. The floating tank device 20 includes a plurality of fixed brackets 21 respectively arranged in the thickening tank 10, a floating tank 22 arranged on the plurality of fixed brackets 21 and in a square shape, a water collecting tank 23 arranged on one side of the floating tank 22 and in a square shape, a plurality of guide columns 24 respectively arranged in the thickening tank 10, and siphon water pipes 25 respectively connected between the plurality of guide columns 24 and the water collecting tank 23. A plurality of water outlet pipes 13 communicated with the plurality of guide columns 24 are respectively arranged in the thickening tank 10, and a plurality of water inlet holes 231 communicated with the thickening tank 10 are respectively arranged on the water collecting tank 23. A manual ball valve 26 is arranged on the siphon water pipe 25. The manual ball valve can realize the connection or closing of the siphon water pipe, so as to facilitate the operation of the operator. The plurality of fixed brackets 21 are distributed in a rectangular array on the inner side wall of the thickening tank 10. The fixed brackets are arranged in a rectangular array structure, so as to ensure that the connection between the fixed brackets and the floating tank is more compact and firm.

[0015] As Figure 1 shown, a concrete layer 101 is arranged at the bottom of the thickening tank 10, a sludge tank 102 is arranged in the middle of the concrete layer 101, and a sludge discharge pipe 103 communicated with the sludge tank 102 is arranged in the concrete layer 101. The sludge in the sludge tank can be discharged from the sludge discharge pipe, which is beneficial to improving the thickening efficiency of the floating tank type thickener. The cross-sectional shape of the floating tank 22 is in a "return" shape. The floating tank designed with a "return" shape structure has good sealing performance, firm structure design, high stability, and can bear large pressure, which is beneficial to improving the working stability of the floating tank type thickener. A guiding inclined surface 1011 for transitional connection with the sludge tank 102 is arranged on the concrete layer 101. The guiding inclined surface plays a guiding role for the sludge, which can ensure that the sludge can quickly enter the sludge tank, thereby being beneficial to improving the thickening efficiency of the floating tank type thickener.

[0016] The floating tank device of the floating tank type thickener is arranged in a modular integrated manner and floats along with the size and shape of the water surface, can continuously and evenly collect the supernatant liquid, improves the thickening efficiency of the thickening tank, increases the sludge concentration of the incoming sludge of the dehydrator, and further can reduce the number of dehydrator equipment, or increase the solid content rate of the dehydrator cake, reduce the project investment and save the occupied area. It is convenient to adjust the water output; it will not form a closed water surface, which is beneficial to the easy discharge of floating objects in the pool; at the same time, it is convenient for maintenance. Therefore, the floating tank type thickener has the advantages of simple structure, stable and reliable performance, and high thickening efficiency.

Claims

1. A floating trough type thickener, characterized in that: It includes a thickening tank, a sludge scraper plate arranged at the center inside the thickening tank, a sludge scraper for driving the sludge scraper plate to rotate, and a floating tank device arranged inside the thickening tank. The floating tank device includes a plurality of fixed brackets respectively arranged inside the thickening tank, a floating tank in the shape of a square frame arranged on the plurality of fixed brackets, a water collecting tank in the shape of a square frame arranged on one side of the floating tank, a plurality of guide columns respectively arranged inside the thickening tank, and siphon water pipes respectively connected between the plurality of guide columns and the water collecting tank. A plurality of water outlet pipes communicating with the plurality of guide columns are respectively arranged inside the thickening tank. A plurality of water inlet holes communicating with the thickening tank are respectively arranged on the water collecting tank. A concrete layer is arranged at the bottom of the thickening tank. A sludge tank is arranged in the middle of the concrete layer. A sludge discharge pipe communicating with the sludge tank is arranged inside the concrete layer.

2. The floating trough type thickener according to claim 1, characterized in that: The cross-sectional shape of the floating tank is in the shape of a "hui" character.

3. The floating trough type thickener according to claim 1 or 2, characterized in that: A guide inclined surface for transitional connection with the sludge tank is arranged on the concrete layer.

4. The floating trough type thickener according to claim 1 or 2, characterized in that: A manual ball valve is arranged on the siphon water pipe.

5. The floating trough type thickener according to claim 1 or 2, characterized in that: The plurality of fixed brackets are distributed in a rectangular array on the inner side wall of the thickening tank.

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