Rural sewage inclined plate sedimentation tank

Abstract

The utility model relates to a rural sewage inclined plate sedimentation tank which comprises a tank body, a plurality of mutually parallel inclined plates are arranged in the tank body, the inclined plates are connected with a rotation driving mechanism for driving the inclined plates to rotate from an inclined position to a vertical position, each inclined plate comprises a plate body, a frame is arranged on the edge of the upper surface of the plate body, and an elastic film is arranged on one side, far away from the plate body, of the frame. A cavity is formed between the elastic film and the plate body and connected with an air inlet and outlet mechanism. When sediment on the surface of the elastic membrane needs to be removed, the inclined plate is rotated to the vertical position, then the cavity is inflated through the air inlet and outlet mechanism, meanwhile, intermittent deflation is conducted, during inflation, the pressure in the cavity is increased, the elastic membrane bulges outwards, during deflation, the combustible membrane shrinks inwards, the elastic membrane bulges and shrinks repeatedly, regular vibration motion is formed, and therefore the sediment on the surface of the elastic membrane can be removed. Precipitates on the surface of the elastic membrane can be quickly separated from the elastic membrane, so that the desliming efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment facilities field especially a rural sewage inclined plate sedimentation tank. BACKGROUND

[0002] Rural sewage contains a large amount of solid sundries, after preliminary filtration by grating, still contains many granular matters of small size and weight, needs to remove these granular matters to carry out next step processing again. At present, common treatment facilities include sedimentation tank and filter equipment, filter equipment is higher in efficiency, but filter material is easy to block, and is inconvenient to maintain in later period. Inclined plate sedimentation tank is a common sedimentation tank, is provided with multiple inclined sedimentation plates in the tank, is provided with gap between two adjacent sedimentation plates, when sewage flows through the gap, granular matter in sewage is deposited on the upper surface of sedimentation plate.

[0003] Traditional inclined plate sedimentation tank has the defect that it is difficult to discharge sludge between plates, CN202321723991.7 discloses a kind of inclined plate sedimentation tank facilitating inclined plate sludge discharge, can rotate inclined plate from inclined state to vertical state by lifting mechanism, it is helpful for the deposition material on the surface of inclined plate to fall into the bottom of sedimentation tank, but due to the existence of certain adhesion between deposition material and inclined plate, only rely on gravity, deposition material is difficult to fully, quickly separate from inclined plate. UTILITY MODEL CONTENT

[0004] The utility model wants to solve the technical problem to provide a kind of rural sewage inclined plate sedimentation tank, can promote the sludge on the surface of inclined plate more quickly separate from inclined plate.

[0005] To solve the above problems, the technical scheme adopted by the utility model is as follows: a rural sewage inclined plate sedimentation tank, comprising a tank body, a plurality of mutually parallel inclined plates are arranged in the tank body, the inclined plates are connected with a rotation driving mechanism for driving the inclined plates to rotate from an inclined position to a vertical position,

[0006] The inclined plate comprises a plate body, a frame is arranged on the edge of the upper surface of the plate body, an elastic membrane is arranged on the side of the frame away from the plate body, a cavity is arranged between the elastic membrane and the plate body, and a gas inlet and outlet mechanism is connected to the cavity.

[0007] Further, the gas inlet and outlet mechanism includes an air inlet pump, an air inlet pipe, an air outlet valve and an air outlet pipe, the air inlet pump is connected to the air inlet pipe, the cavity is connected with an air inlet hole and an air outlet hole, the air inlet hole is connected to the air inlet pipe, the air outlet hole is connected to the air outlet valve, and the air outlet valve is connected to the air outlet pipe.

[0008] Further, the air inlet pipe and the air outlet pipe are both flexible pipes.

[0009] Further, the air inlet hole and the air outlet hole are arranged on the frame.

[0010] Further, the rotating drive mechanism comprises a rectangular mounting frame arranged in the pool body, two side edges of the inclined plate are fixed to the rectangular mounting frame, one end of the rectangular mounting frame is hinged to the side wall of the pool body, and the other end is connected with the lifting mechanism.

[0011] Further, the inner wall of one end of the pool body is provided with a connecting beam, the inner wall of the other end is provided with a horizontal support plate, one end of the rectangular mounting frame is hinged to the connecting beam, and the other end is placed on the support plate.

[0012] Further, the top of the pool body is provided with a support frame, the lifting mechanism is a hydraulic cylinder, the piston rod of the hydraulic cylinder is hinged to the rectangular mounting frame, and the cylinder body of the hydraulic cylinder is hinged to the support frame.

[0013] Further, the bottom of the pool body is provided with a plurality of sludge collecting tanks, and the tank bottom of the sludge collecting tank is provided with a sludge discharge pipe.

[0014] Further, the elastic membrane is a rubber membrane.

[0015] Further, the plate body is a plastic plate, the frame is a plastic frame, and the frame is integrally formed with the plate body.

[0016] The beneficial effects of the utility model are that: when the baffle sedimentation tank is normally operated, the inclined plate is in an inclined state, the elastic membrane is above the plate body, and particles in sewage fall on the surface of the elastic membrane. When the surface of the elastic membrane needs to be cleaned, the inclined plate is rotated to a vertical state by using the rotating drive mechanism, then air is filled into the cavity by using the air inlet and outlet mechanism, and air is intermittently discharged at the same time. When the air is filled, the pressure in the cavity is increased, the elastic membrane is inflated outward, when the air is discharged, the elastic membrane is contracted inward, the elastic membrane repeatedly inflates and contracts, regular vibration movement is formed, and the deposition on the surface of the elastic membrane can be quickly separated from the elastic membrane, so that the sludge removal efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view schematic diagram of the utility model when it is normally operated.

[0018] Figure 2 It is the sectional view schematic diagram of the inclined plate of the utility model.

[0019] Figure 3 It is the front view schematic diagram of the utility model when the deposition is removed.

[0020] Fig. 1 is a pool body; 2 is an inclined plate; 21 is a plate body; 22 is a frame; 23 is an elastic membrane; 24 is a cavity; 3 is an air inlet pump; 4 is an air inlet pipe; 5 is an air outlet valve; 6 is an air outlet pipe; 7 is a rectangular mounting frame; 8 is a lifting mechanism; 9 is a connecting beam; 10 is a support plate; 11 is a support frame; 12 is a sludge collecting tank; 13 is a sludge discharge pipe. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] This utility model relates to an inclined plate sedimentation tank for rural sewage, such as... Figure 1 As shown, the system includes a tank body 1, within which multiple parallel inclined plates 2 are installed. The inclined plates 2 are connected to a rotation drive mechanism that rotates them from an inclined position to a vertical position. The tank body 1 is a cuboid and can be a concrete tank built on the ground, or a skid-mounted tank that can be moved as a whole, flexibly changing its installation position to adapt to the characteristics of rural areas with wide geographical areas and low sewage concentration. The rotation drive mechanism can drive the inclined plates 2 from an inclined position to a vertical position. During normal operation of the sedimentation tank, the inclined plates 2 are in an inclined state. When it is necessary to clean the sediment on the surface of the inclined plates, rotating the inclined plates 2 to a vertical position helps the sediment to quickly detach from the inclined plates 2.

[0023] Traditional inclined plates 2 are thin plates, and deposits adhere to their surface, making them difficult to remove automatically. The inclined plate 2 in this invention... Figure 2 As shown, the system includes a plate 21, with a frame 22 along the upper edge of the plate 21. An elastic membrane 23 is located on the side of the frame 22 away from the plate 21, and a cavity 24 is formed between the elastic membrane 23 and the plate 21. An air inlet / outlet mechanism is connected to the cavity 24. The plate 21 is a rectangular plate, the frame 22 is a rectangular frame fixed to the plate 21, and the elastic membrane 23 is a rectangular membrane. The edge of the elastic membrane 23 is sealed to the frame 22, so that the elastic membrane 23 and the plate 21 form the cavity 24. The air inlet / outlet mechanism is used to introduce air into the cavity 24 and to expel air from the cavity 24.

[0024] The elastic membrane 23 is a flexible membrane that deforms under pressure; it can be made of conventional elastic materials such as rubber membrane. The plate body 21 can be made of metal, but in a preferred embodiment, it is made of plastic, and the frame 22 is made of plastic, with the frame 22 integrally formed with the plate body 21. This can be achieved through molding. Plastic is lighter, easier to transport and install, lower in cost, and corrosion-resistant. The edges of the elastic membrane 23 can be adhered to the frame 22 with waterproof adhesive or fixed to the frame 22 via heat fusion.

[0025] When air is introduced into cavity 24, the pressure inside cavity 24 increases, and the elastic membrane 23 bulges outward under the action of the internal air pressure. When the air is expelled from cavity 24, the pressure inside cavity 24 decreases, and the elastic membrane 23 contracts inward. The continuous bulging and contraction of the elastic membrane 23 forms a regular vibration motion, which can promote the rapid detachment of the sediment on the surface of the elastic membrane 23 and its sedimentation to the bottom of the pool 1.

[0026] The specific operation process of the utility model is: one end of the pool body 1 is the water inlet end, the bottom of the water inlet end is provided with the water inlet pipe for passing in the sewage, the top of the other end is provided with the water outlet ditch or the water outlet pipe, which is used for discharging the sewage after the sedimentation treatment. The inclined plate 2 is in the inclined state, and the elastic membrane 23 is located on the upper surface of the inclined plate 2. The rural sewage is passed into the pool body 1 after preliminary filtration, the sewage enters the interval between the inclined plates 2 from the lower end of the inclined plate 2 and slowly flows upwards along the interval between the inclined plates 2, and in the flowing process, the particulate matters in the sewage gradually deposit on the surface of the elastic membrane 23, thereby realizing the removal of the particulate matters. When the sewage flows out from the upper end of the inclined plate 2, it is discharged through the water outlet ditch or the water outlet pipe. After a period of operation, when it is necessary to remove the deposits accumulated on the surface of the elastic membrane 23, the passing in of the sewage is temporarily stopped, the inclined plate 2 is driven to rotate from the inclined position to the vertical position by the rotating driving mechanism, then air is continuously passed into the cavity 24 by the air inlet and outlet mechanism, and at the same time, the air is intermittently discharged by the air inlet and outlet mechanism, so that the air pressure in the cavity 24 is continuously increased and decreased, thereby promoting the elastic membrane 23 to continuously swell and shrink, the movement of the elastic membrane 23 can shake off the deposits on the outer surface of the elastic membrane 23, and the deposits are quickly removed. After the removal in the sedimentation area is completed, the air inlet and outlet mechanism stops the air inlet and outlet, the inclined plate 2 is driven to rotate from the vertical position to the initial angle by the rotating driving mechanism, and then the sewage can continue to be passed in.

[0027] In the utility model, the air inlet and outlet mechanism comprises an air inlet pump 3, an air inlet pipe 4, an exhaust valve 5 and an exhaust pipe 6, the air inlet pump 3 is connected with the air inlet pipe 4, the cavity 24 is connected with an air inlet hole and an air outlet hole, the air inlet hole is connected with the air inlet pipe 4, the air outlet hole is connected with the exhaust valve 5, and the exhaust valve 5 is connected with the exhaust pipe 6. The air inlet pump 3 can adopt the existing air pump, is installed outside the pool body 1 and communicates with the external air, a filter screen is arranged at the inlet of the air inlet pump 3 to prevent impurities from entering the pipeline. The outlet end of the exhaust pipe 6 is located outside the pool body 1, and air is discharged outside the pool body 1 during exhaust, so that the air is prevented from entering the sewage and disturbing the sewage. The exhaust valve 5 adopts an electromagnetic valve and is intermittently opened and closed, so that the intermittent exhaust can be realized. The air inlet pipe 4 can comprise one air inlet main pipe and a plurality of branch air inlet pipes, one end of each branch air inlet pipe is connected with the air inlet main pipe, and the other end is connected with each cavity 24. The exhaust pipe 6 can also comprise an exhaust main pipe and a plurality of branch exhaust pipes, one end of each branch exhaust pipe is connected with the cavity 24 of one inclined plate 2, and the other end is connected with the exhaust main pipe.

[0028] The air inlet pipe 4 and the exhaust pipe 6 are both flexible pipes, for example, rubber pipes, when the inclined plate 2 rotates, the flexible pipes can deform to adapt to the movement of the inclined plate 2, so that the air inlet pipe 4 and the exhaust pipe 6 can be kept connected with the inclined plate 2 when the inclined plate 2 rotates.

[0029] The air inlet hole and the air outlet hole can be arranged on the plate body 21, preferably, the air inlet hole and the air outlet hole are arranged on the frame 22.

[0030] The rotating driving mechanism can adopt the prior art, in order to facilitate driving all the inclined plates 2 to rotate synchronously, simplify the structure of the rotating driving mechanism, the rotating driving mechanism comprises a rectangular mounting frame 7 arranged in the pool body 1, both sides of all the inclined plates 2 are fixed to the rectangular mounting frame 7, specifically, the edge of the plate body 21 can be connected to the rectangular mounting frame 7 by screws. One end of the rectangular mounting frame 7 is hinged to the side wall of the pool body 1, and the other end is connected with a lifting mechanism 8. When the rectangular mounting frame 7 is in a horizontal state, the inclined plate 2 is in an inclined state, when the lifting mechanism 8 pulls one end of the rectangular mounting frame 7 to lift, for example, to move upward, the rectangular mounting frame 7 moves from the horizontal state to the inclined state, and the inclined plate 2 rotates from the inclined state to the vertical state, as shown in Figure 3 In the utility model, only one lifting mechanism 8 can drive all the inclined plates 2 to move synchronously, the rotating driving mechanism is simple in structure and low in implementation cost.

[0031] The inner wall of one end of the pool body 1 is provided with a connecting beam 9, the connecting beam 9 can adopt angle steel, channel steel and other steel profiles, the connecting beam 9 can be embedded in the side wall of the pool body 1, the inner wall of the other end is provided with a horizontal support plate 10, the support plate 10 can adopt a steel plate, the support plate 10 can also be embedded in the side wall of the pool body 1, one end of the rectangular mounting frame 7 is hinged to the connecting beam 9, and the other end is naturally placed on the support plate 10. When the inclined plate sedimentation tank is normally operated, one end of the rectangular mounting frame 7 is hinged to the connecting beam 9, the height is fixed, and the other end is naturally placed on the support plate 10, so that the rectangular mounting frame 7 can be kept stable under the action of self weight and gravity of the inclined plate 2, without the support force provided by the lifting mechanism 8, at this time, the rectangular mounting frame 7 is in a horizontal state. When it is necessary to clean the deposits on the inclined plate 2, the lifting mechanism 8 pulls the rectangular mounting frame 7 to rotate upward by a proper angle.

[0032] The top of the pool body 1 is provided with a support frame 11, the lifting mechanism 8 is a hydraulic cylinder, the piston rod of the hydraulic cylinder is hinged to the rectangular mounting frame 7, and the cylinder body of the hydraulic cylinder is hinged to the support frame 11. The support frame 11 can adopt a steel structure frame and is fixed to the top of the support frame 11. The hydraulic cylinder is in an inclined state, which can pull the rectangular mounting frame 7 to rotate upward.

[0033] In order to facilitate the discharge of sludge at the bottom of the pool body 1, a plurality of sludge collecting grooves 12 are arranged at the bottom of the pool body 1, and a sludge discharge pipe 13 is arranged at the groove bottom of the sludge collecting groove 12. The side wall of the sludge collecting groove 12 is inclined, so that the deposited substances can slide to the bottom of the sludge collecting groove 12, and the sludge discharge pipe 13 is connected with a sludge pump for pumping out the sludge.

[0034] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rural sewage inclined plate sedimentation tank, comprising a tank body (1), a plurality of mutually parallel inclined plates (2) are arranged in the tank body (1), and a rotating driving mechanism for driving the inclined plates (2) to rotate from an inclined position to a vertical position is connected to the inclined plates (2), characterized in that: the inclined plate (2) comprises a plate body (21), an edge of an upper surface of the plate body (21) is provided with a frame (22), a side of the frame (22) away from the plate body (21) is provided with an elastic film (23), a cavity (24) is arranged between the elastic film (23) and the plate body (21), and an air inlet and outlet mechanism is connected to the cavity (24).

2. The rural sewage inclined plate sedimentation tank according to claim 1, characterized in that: the air inlet and outlet mechanism comprises an air inlet pump (3), an air inlet pipe (4), an air outlet valve (5) and an air outlet pipe (6), the air inlet pump (3) is connected to the air inlet pipe (4), the cavity (24) is connected with an air inlet hole and an air outlet hole, the air inlet hole is connected to the air inlet pipe (4), the air outlet hole is connected to the air outlet valve (5), and the air outlet valve (5) is connected to the air outlet pipe (6).

3. The rural sewage inclined plate sedimentation tank according to claim 2, characterized in that: The air inlet pipe (4) and the air outlet pipe (6) are both flexible pipes.

4. The rural sewage inclined plate sedimentation tank according to claim 2, characterized in that: The air inlet hole and the air outlet hole are arranged on the frame (22).

5. The rural sewage inclined plate sedimentation tank according to claim 1 or 2, characterized in that: The rotating driving mechanism comprises a rectangular mounting frame (7) arranged in the tank body (1), two side edges of the inclined plate (2) are fixed to the rectangular mounting frame (7), one end of the rectangular mounting frame (7) is hinged to a side wall of the tank body (1), and the other end is connected to a lifting mechanism (8).

6. The rural sewage inclined plate sedimentation tank according to claim 5, characterized in that: An inner wall of one end of the tank body (1) is provided with a connecting beam (9), an inner wall of the other end is provided with a horizontal support plate (10), one end of the rectangular mounting frame (7) is hinged to the connecting beam (9), and the other end is naturally placed on the support plate (10).

7. The rural sewage inclined plate sedimentation tank according to claim 5, characterized in that: A support frame (11) is arranged on the top of the tank body (1), the lifting mechanism (8) is a hydraulic cylinder, a piston rod of the hydraulic cylinder is hinged to the rectangular mounting frame (7), and a cylinder body of the hydraulic cylinder is hinged to the support frame (11).

8. The rural sewage inclined plate sedimentation tank according to claim 1, characterized in that: A plurality of sludge collecting grooves (12) are arranged at the bottom of the tank body (1), and a sludge discharge pipe (13) is arranged at the groove bottom of the sludge collecting groove (12).

9. The rural sewage inclined plate sedimentation tank according to claim 1, characterized in that: The elastic film (23) is a rubber film.

10. The rural sewage inclined plate sedimentation tank according to claim 1, characterized in that: The plate body (21) is a plastic plate, the frame (22) is a plastic frame, and the frame (22) and the plate body (21) are integrally formed.

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