Sludge receiving tank

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a sludge receiving tank which comprises a sludge tank, a fixing frame fixedly connected to the top of the sludge tank, a funnel fixedly connected to the bottom of the sludge tank, a fixing rod fixedly connected between the fixing frame and the funnel, a sliding cylinder slidably connected to the fixing rod, and a mounting frame fixedly connected to the sliding cylinder. A water collecting hopper is fixedly connected to the bottom of the mounting frame, a filter head is connected to the mounting frame, a floating frame is fixedly connected to the outer side of the sliding cylinder, a connecting bolt is mounted in the floating frame, and a floating ball is fixedly connected to the connecting bolt; according to the utility model, through the characteristic of different densities of clear liquid and sludge and the arrangement of different buoyancy forces of the floating ball between the clear liquid and the sludge, the filter head is driven to automatically lift, when the floating ball floats in the upper-layer clear liquid, the filter head is suspended below the liquid level of the clear liquid, and when the floating ball floats in the lower-layer sludge, the filter head floats above the sludge; therefore, the supernatant liquid is automatically separated and sucked, and the separation efficiency of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a sludge receiving tank. Background Technology

[0002] Currently, wastewater treatment processes mostly employ sludge dewatering devices to separate the mud from the clean water in the residual sludge. A sludge dewatering device mainly consists of a mixing tank and a sludge dewatering machine. The working principle is as follows: the residual sludge (with a water content of approximately 99.6%) produced after biochemical treatment of wastewater is mixed in the mixing tank with the addition of flocculant polyacrylamide, and then enters the sludge dewatering machine for flocculation and dewatering. The sludge dewatering machine separates the water and mud from the residual sludge, and the clean water can be returned to the wastewater treatment system, achieving the goal of reducing the amount of residual sludge.

[0003] Its drawback is that, after the sewage undergoes biochemical treatment, the residual sludge entering the sludge dewatering machine has a low mud content, generally around 0.4%. After the residual sludge is flocculated, the amount of clear water is large, and the speed at which the clear water is separated is slow, thus affecting the working efficiency of the sludge dewatering machine. Utility Model Content

[0004] The purpose of this invention is to provide a sludge receiving tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sludge receiving tank includes a sludge tank, a fixed frame fixedly connected to the top of the sludge tank, a funnel fixedly connected to the bottom of the sludge tank, a fixed rod fixedly connected between the fixed frame and the funnel, a sliding cylinder slidably connected to the fixed rod, an installation frame fixedly connected to the sliding cylinder, a water collection hopper fixedly connected to the bottom of the installation frame, a threaded installation groove fixedly connected to the top of the installation frame, a filter head threadedly connected to the threaded installation groove, a floating frame fixedly connected to the outside of the sliding cylinder, a connecting bolt installed inside the floating frame, and a float ball fixedly connected to the connecting bolt.

[0007] The water collection hopper is equipped with a water suction component for pumping water from the hopper.

[0008] The bottom of the funnel is equipped with a sludge discharge assembly for discharging the settled sludge.

[0009] As a further embodiment of this utility model: the water absorption component includes a connecting pipe with one end fixedly connected to the bottom of the water collection hopper, and a first connector fixedly connected to the other end of the connecting pipe.

[0010] As a further embodiment of this utility model: a mounting base is fixedly connected to the sludge tank, a liquid pump is fixedly connected to the mounting base, and a second connector is fixedly connected to the inlet end of the liquid pump.

[0011] As a further embodiment of this utility model: a connecting hose is installed between the second connector and the first connector.

[0012] As a further embodiment of this utility model: the sewage discharge assembly includes one end of a sewage discharge pipe that is fixedly connected to the bottom of the funnel.

[0013] As a further improvement of this utility model: a control valve is fixedly connected to the other end of the sewage pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model utilizes the difference in density between the clear liquid and the sludge, and employs a float with different buoyancy between the clear liquid and the sludge to drive the filter head to automatically rise and fall. When the float floats in the upper layer of clear liquid, the filter head is suspended below the surface of the clear liquid, and when the float floats in the lower layer of sludge, the filter head floats above the sludge, thereby achieving automatic separation and absorption of the upper layer of clear liquid and improving the separation efficiency of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a sludge receiving tank according to the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of a sludge receiving tank according to the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of a sludge receiving tank according to the present invention.

[0018] In the diagram: 1-Sludge tank, 2-Fixed frame, 3-Fixed rod, 4-Sliding cylinder, 5-Mounting frame, 6-Water collection hopper, 7-Threaded mounting groove, 8-Filter head, 9-Connecting pipe, 10-First connector, 11-Mounting base, 12-Liquid pump, 13-Second connector, 14-Connecting hose, 15-Floating frame, 16-Connecting bolt, 17-Float ball, 18-Function funnel, 19-Sewage pipe, 20-Control valve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] See Figures 1-3In this embodiment of the utility model, a sludge receiving tank includes a sludge tank 1. A fixed frame 2 is fixedly connected to the top of the sludge tank 1, and a funnel 18 is fixedly connected to the bottom of the sludge tank 1. A fixed rod 3 is fixedly connected between the fixed frame 2 and the funnel 18. A sliding cylinder 4 is slidably connected to the fixed rod 3. An installation frame 5 is fixedly connected to the sliding cylinder 4. A water collection hopper 6 is fixedly connected to the bottom of the installation frame 5. A threaded installation groove 7 is fixedly connected to the top of the installation frame 5. A filter head 8 is threadedly connected to the threaded installation groove 7. A floating frame 15 is fixedly connected to the outside of the sliding cylinder 4. A connecting bolt 16 is installed inside the floating frame 15. A float ball 17 is fixedly connected to the connecting bolt 16.

[0021] The water collection hopper 6 is equipped with a water suction component for pumping water from the water collection hopper 6; the bottom of the funnel 18 is equipped with a sewage discharge component for discharging settled sludge.

[0022] This invention first uses a sludge tank 1 to hold wastewater and allow it to settle. During the settling process, sludge settles to the bottom of the sludge tank 1, while the clear liquid floats on the surface. At this time, the float ball 17 generates buoyancy under the action of the wastewater. The filter head 8, mounted on the mounting frame 5, is suspended below the liquid surface of the sludge tank 1 under the action of gravity and the buoyancy of the float ball 17. The clear liquid in the sludge tank 1 is filtered by the filter head 8 and enters the water collection hopper 6, and is then pumped out by the water suction component. After the clear liquid is discharged, only sludge remains in the sludge tank 1. Since the density of sludge is greater than that of clear liquid, the float ball 17 experiences greater buoyancy. The filter head 8 experiences less gravity and greater buoyancy, so the filter head 8 floats above the sludge, thus preventing sludge from entering the filter head 8. This achieves automatic separation of sludge and clear liquid.

[0023] In one instance of this embodiment, please refer to Figures 1-3 The water suction assembly includes a connecting pipe 9 fixedly connected at one end to the bottom of the water collection hopper 6, and a first connector 10 fixedly connected at the other end of the connecting pipe 9. A mounting base 11 is fixedly connected to the sludge tank 1, and a liquid pump 12 is fixedly connected to the mounting base 11. A second connector 13 is fixedly connected to the inlet end of the liquid pump 12. A connecting hose 14 is installed between the second connector 13 and the first connector 10. The water suction assembly continuously sucks water from the water collection hopper 6 through the liquid pump 12 and the connecting hose 14. At the same time, the connecting hose 14 ensures that the water collection hopper 6 is synchronously connected to the liquid pump 12 during the lifting and lowering process.

[0024] In one instance of this embodiment, please refer to Figures 1-3The sewage discharge assembly includes one end of a sewage pipe 19 fixedly connected to the bottom of the funnel 18, and the other end of the sewage pipe 19 is fixedly connected to a control valve 20. The sewage discharge assembly first connects to the sludge pumping equipment through the sewage pipe 19, and then the sludge pumping equipment sucks the sludge from the bottom of the sludge tank 1. At the same time, when the sludge pumping equipment is not working, the opening and closing of the sewage pipe 19 can be controlled by the control valve 20 to prevent sludge leakage.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sludge receiving basin comprising a sludge basin, characterized in that The sludge tank top is fixedly connected with a fixed frame, the sludge tank bottom is fixedly connected with a funnel, the fixed frame and the funnel are fixedly connected with a fixed rod, the fixed rod is slidably connected with a sliding cylinder, the sliding cylinder is fixedly connected with a mounting frame, the mounting frame bottom is fixedly connected with a water collecting hopper, the mounting frame top is fixedly connected with a threaded mounting groove, the threaded mounting groove is threadedly connected with a filter head, the sliding cylinder outer side is fixedly connected with a floating frame, the floating frame is internally mounted with a connecting bolt, the connecting bolt is fixedly connected with a float; The water collecting hopper is mounted with a water suction assembly for sucking water in the water collecting hopper; The funnel bottom is mounted with a sewage discharge assembly for discharging the settled sludge.

2. A sludge receiving tank according to claim 1, characterised in that The water suction assembly comprises a connecting pipe fixedly connected at one end to the water collecting hopper bottom, and a first connecting head fixedly connected to the other end of the connecting pipe.

3. A sludge receiving tank according to claim 2, characterised in that The sludge tank is fixedly connected with a mounting seat, the mounting seat is fixedly connected with a liquid pump, and the liquid pump liquid inlet end is fixedly connected with a second connecting head.

4. A sludge receiving tank according to claim 3, characterised in that The second connecting head and the first connecting head are mounted with a connecting hose.

5. A sludge receiving tank according to claim 1, characterised in that The sewage discharge assembly comprises one end of a sewage discharge pipe fixedly connected to the funnel bottom.

6. A sludge receiving tank according to claim 5, characterised in that The other end of the sewage discharge pipe is fixedly connected with a control valve.

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