Backwash type sewage treatment device

Abstract

The utility model discloses a backwashing type sewage treatment device, which relates to the technical field of sewage treatment and comprises a shell, a first filter cavity, a second filter cavity, a backwashing device, a clean water tank and a sewage discharge device. The shell comprises a top cover, a conical partition plate, a water inlet and a water outlet; the first filter cavity comprises a first filter plate, and a first ultrasonic transducer and a first ultrasonic generator are arranged at the upper end of the first filter plate; the second filtering cavity comprises a second filtering plate, the second filtering plate is obliquely arranged on the lower portion of the shell, and a second ultrasonic transducer and a second ultrasonic generator are arranged at the positions, corresponding to the second filtering plate, of the shell; the backwashing device comprises a water pump, a first backwashing water pipe and a second backwashing water pipe, the first backwashing water pipe is communicated with the first filter cavity, and the second backwashing water pipe is communicated with the second filter cavity. According to the utility model, the backwashing effect on the filter plate and the pollution discharge effect are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a backwashing type sewage treatment device. Background Art

[0002] Existing sewage treatment devices mostly use fixed filter plates to filter out impurities in sewage. However, long-term filtration is prone to blockage and impurity accumulation, which will greatly affect the sewage treatment efficiency. For this reason, it is necessary to use water to reversely flush the filter plate to flush out the impurity particles attached to the filter plate.

[0003] However, the existing treatment processes or equipment still have the following problems: large particles attached to the filter plate cause blockage, which is difficult to remove by ordinary flushing, and the general flushing water pipe may have right-angle turns when arranged, which will lose the kinetic energy of the water flow. These factors will make the backwashing filter plate ineffective. Utility Model Content

[0004] The utility model aims to provide a backwashing type sewage treatment device to solve the problem of poor effect of the backwashing filter plate mentioned in the background technology.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model discloses a backwashing sewage treatment device, comprising a shell, wherein the shell comprises a top cover, a conical partition is arranged inside the shell, the conical partition is an oblique cone with one side higher than the other side, a water leakage port is arranged at the lowest point of the bottom of the conical partition, a first filter chamber is arranged at the upper part of the conical partition, and a second filter chamber is arranged at the lower part of the conical partition.

[0007] A first filter plate is arranged in the first filter cavity. The first filter plate is a cylindrical structure. The first filter plate is arranged on the conical partition. A first ultrasonic transducer is arranged at the upper end of the first filter plate. A first ultrasonic generator is arranged above the first ultrasonic transducer.

[0008] A second filter plate is arranged in the second filter cavity. The second filter plate is a circular plate structure. The second filter plate is arranged obliquely at the lower part of the shell. A second ultrasonic transducer is arranged on the shell at a position corresponding to the second filter plate. A second ultrasonic generator is arranged above the second ultrasonic transducer.

[0009] A water outlet with a valve is provided at the bottom of the shell, and the water outlet is connected to a clean water tank, and the clean water tank is connected to a backwashing device. The backwashing device includes a water pump, and a water pump suction pipe is provided on the water pump, and the water pump suction pipe is inserted into the clean water tank. The water outlet on the water pump is connected to a first backwashing water pipe and a second backwashing water pipe through a tee. The inner cavities of the first backwashing water pipe and the second backwashing water pipe are both Tesla valve cavity structures. The first backwashing water pipe is connected to the first filter cavity, and the second backwashing water pipe is connected to the second filter cavity. The first backwashing water pipe is coiled around the outer wall of the shell.

[0010] Furthermore, a water inlet is provided on the upper portion of the shell; and the top cover is detachably connected to the first filter chamber and the first backwash water pipe.

[0011] Furthermore, one end of the first backwash water pipe away from the water pump is located in the cavity of the first filter plate, and one end of the second backwash water pipe away from the water pump is located on the shell at one side of the highest point of the second filter plate.

[0012] Further, a sewage discharge device is provided on the lower outer wall of the housing, and the sewage discharge device includes a sewage pump, and the sewage pump is provided on the housing outside the second filter chamber, and the sewage pump is provided with a first sewage discharge pipe and a second sewage discharge pipe, and the end of the first sewage discharge pipe away from the sewage pump is provided at the lowest point where the outer wall of the first filter plate and the conical partition meet, and the end of the first sewage discharge pipe close to the conical partition is provided with an electric valve. The sewage pump is provided with a sewage discharge port.

[0013] Furthermore, one end of the second sewage pipe away from the sewage pump is arranged above the lowest part of the second filter plate.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are:

[0015] The utility model is provided with an ultrasonic transducer and an ultrasonic generator on the first filter plate and the second filter plate, which can generate vibration to shake off the impurities attached to the filter plate and break up the larger particles for easy flushing; the first backwashing water pipe and the second backwashing water pipe with the inner cavity of the Tesla valve cavity structure spiraling around the shell are used to pressurize and accelerate the water flow, inject it into the first filter cavity and the second filter cavity for backwashing, thereby improving the flushing effect; in addition, an oblique conical conical partition and an inclined second filter plate are provided to facilitate the discharge of the sewage after flushing. The utility model effectively improves the backwashing effect of the filter plate and the sewage discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 This is a cross-sectional view of the backwash sewage treatment device of the utility model;

[0018] Figure 2 This is the external structure diagram of the backwash type sewage treatment device of the utility model;

[0019] Figure 3 This is a structural diagram of the backwash water pipe of the utility model;

[0020] Explanation of the reference numerals: 1. Shell; 1-1. Conical partition; 1-1-1. Water leakage port; 1-2. Top cover; 1-3. Water inlet; 1-4. Water outlet; 2. First filter chamber; 2-1. First filter plate; 2-2. First ultrasonic transducer; 2-3. First ultrasonic generator; 3. Second filter chamber; 3-1. Second filter plate; 3-2. Second ultrasonic transducer; 3-3. Second ultrasonic generator; 4. Backwashing device; 4-1. Water pump; 4-2. First backwashing water pipe; 4-3. Second backwashing water pipe; 4-4. Water pump suction pipe; 5. Clean water tank; 6. Sewage discharge device; 6-1. Sewage pump; 6-2. First sewage pipe; 6-2-1. Electric valve; 6-3. Second sewage pipe; 6-4. Sewage outlet. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] like Figures 1 to 3 As shown, the present embodiment discloses a backwash type sewage treatment device, including a shell 1, the shell 1 includes a top cover 1-2, a conical partition 1-1 is arranged in the shell 1, the conical partition 1-1 is an oblique cone with one side higher than the other side, a water leakage port 1-1-1 is arranged at the lowest point of the bottom of the conical partition 1-1, a first filter chamber 2 is arranged on the upper part of the conical partition 1-1, and a second filter chamber 3 is arranged on the lower part of the conical partition 1-1.

[0023] A water inlet 1-3 is provided on the upper portion of the shell 1; the top cover 1-2 is detachably connected to the first filter chamber 2 and the first backwash water pipe 4-2, so as to facilitate the assembly and cleaning of the equipment.

[0024] A first filter plate 2-1 is arranged in the first filter chamber 2. The first filter plate 2-1 is a cylindrical structure. The first filter plate 2-1 is arranged on the conical partition plate 1-1. A first ultrasonic transducer 2-2 is arranged at the upper end of the first filter plate 2-1. A first ultrasonic generator 2-3 is arranged above the first ultrasonic transducer 2-2.

[0025] A second filter plate 3-1 is arranged in the second filter chamber 3. The second filter plate 3-1 is a circular plate structure. The second filter plate 3-1 is arranged obliquely at the lower part of the shell 1. A second ultrasonic transducer 3-2 is arranged at a position of the shell 1 corresponding to the second filter plate 3-1. A second ultrasonic generator 3-3 is arranged above the second ultrasonic transducer 3-2.

[0026] In this embodiment, the filtration aperture of the first filter plate 2-1 is larger than the filtration aperture of the second filter plate 3-1.

[0027] The bottom of the housing 1 is provided with a water outlet 1-4 with a valve, the water outlet 1-4 is connected to the clean water tank 5, the clean water tank 5 is connected to the backwashing device 4, the backwashing device 4 includes a water pump 4-1, the water pump 4-1 is provided with a water pump suction pipe 4-4, the water pump suction pipe 4-4 is inserted into the clean water tank 5, the water outlet on the water pump 4-1 is connected to the first backwashing water pipe 4-2 and the second backwashing water pipe 4-3 through a three-way, the inner cavity of the first backwashing water pipe 4-2 and the second backwashing water pipe 4-3 are both Tesla valve cavity structures, when the water flows through, it will be pressurized and accelerated by the Tesla valve cavity structure. The first backwashing water pipe 4-2 is connected to the first filter cavity 2, the second backwashing water pipe 4-3 is connected to the second filter cavity 3, and the first backwashing water pipe 4-2 is spirally around the outer wall of the housing 1.

[0028] The end of the first backwashing water pipe 4-2 away from the water pump 4-1 is located in the cavity of the first filter plate 2-1, and is used to inject clean water to backwash the first filter plate 2-1. The end of the second backwashing water pipe 4-3 away from the water pump 4-1 is located on the housing 1 where the highest point of the second filter plate 3-1 is located. When the water flow continues to be injected into the space below the second filter plate 3-1, the second filter plate 3-1 will be backwashed. The washed sewage will follow the slope of the second filter plate 3-1 and gather to a lower place for easy discharge.

[0029] A sewage discharge device 6 is provided on the lower outer wall of the housing 1. The sewage discharge device 6 includes a sewage discharge pump 6-1, which is provided on the housing 1 outside the second filter chamber 3. The sewage discharge pump 6-1 is provided with a first sewage discharge pipe 6-2 and a second sewage discharge pipe 6-3. The end of the first sewage discharge pipe 6-2 away from the sewage discharge pump 6-1 is provided at the lowest point where the outer wall of the first filter plate 2-1 and the conical partition 1-1 meet. The end of the first sewage discharge pipe 6-2 close to the conical partition 1-1 is provided with an electric valve 6-2-1. When sewage is discharged, when the sewage discharge pump 6-1 is working, the electric valve 6-2-1 is in an open state, and sewage can be pumped out at this time. The electric valve 6-2-1 is in a closed state when filtering sewage.

[0030] One end of the second sewage pipe 6-3 away from the sewage pump 6-1 is arranged above the lowest part of the second filter plate 3-1. When the sewage pump 6-1 is working, the sewage on the second filter plate 3-1 after backwashing can be pumped out.

[0031] The sewage pump 6-1 is provided with a sewage outlet 6-4 for discharging sewage.

[0032] The working principle of the utility model is as follows:

[0033] First, the filtration stage: the sewage to be filtered is put into the water inlet 1-3, the sewage is filtered by the first filter plate 2-1, enters the second filter chamber 3 from the leaking port 1-1-1, is filtered by the second filter plate 3-1, and finally flows into the clean water tank 5.

[0034] Backwashing stage: close the valve of the water outlet 1-4, start the water pump 4-1, and the water pump suction pipe 4-4 absorbs water. Since the first backwashing water pipe 4-2 spirals around the outer wall of the shell 1, the kinetic energy loss of the water is small, and the water flow is continuously injected into the cavity surrounded by the first filter plate 2-1 at a high speed after the boost acceleration of the Tesla valve cavity structure of the first backwashing water pipe 4-2, and flows to the filter cavity between the first filter plate 2-1 and the shell 1, and reversely washes the first filter plate 2-1. In this process, start the first ultrasonic generator 2-3 and the first ultrasonic transducer 2-2 to generate high-frequency vibrations on the first filter plate 2-1, shake off the impurities blocking the first filter plate 2-1, and can also break and shake off the large particles on the first filter plate 2-1, thereby improving the efficiency of backwashing. The second backwash water pipe 4-3 also injects water into the space between the second filter plate 3-1 and the bottom of the shell 1. The continuously injected water flows upward to backwash the second filter plate 3-1. At the same time, the second ultrasonic generator 3-3 and the second ultrasonic transducer 3-2 are started and generate high-frequency vibrations to the second filter plate 3-1 to break up large particles and shake off blocked impurities, thereby improving the efficiency of backwashing.

[0035] Sewage discharge stage: After backwashing is completed, the sewage pump 6-1 and the electric valve 6-2-1 are started. The sewage after backwashing in the first filter chamber 2 is gathered to the lowest point where the outer wall of the first filter plate 2-1 and the conical partition 1-1 meet under the action of gravity and is sucked away and discharged by the first sewage pipe 6-2. The sewage on the second filter plate 3-1 is also gathered at the lowest point under the action of gravity and is sucked away and discharged by the second sewage pipe 6-3. Part of the water flow is filtered again by the first filter plate 2-1 and the second filter plate 3-1 and flows into the bottom of the second filter plate 3-1. Open the valve of the water outlet 1-4 and flow into the clean water tank 5.

[0036] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A backwashing sewage treatment device, characterized in that: The invention comprises a shell (1), wherein the shell (1) comprises a top cover (1-2), wherein a conical partition (1-1) is arranged inside the shell (1), wherein the conical partition (1-1) is in the shape of an oblique circular cone with one side higher than the other, wherein a water leakage port (1-1-1) is arranged at the lowest point of the bottom of the conical partition (1-1), wherein a first filter chamber (2) is arranged at the upper part of the conical partition (1-1), and wherein a second filter chamber (3) is arranged at the lower part of the conical partition (1-1); A first filter plate (2-1) is arranged in the first filter cavity (2); the first filter plate (2-1) is a cylindrical structure; the first filter plate (2-1) is arranged on the conical partition plate (1-1); a first ultrasonic transducer (2-2) is arranged at the upper end of the first filter plate (2-1); and a first ultrasonic generator (2-3) is arranged above the first ultrasonic transducer (2-2); A second filter plate (3-1) is arranged in the second filter cavity (3); the second filter plate (3-1) is a circular plate-shaped structure; the second filter plate (3-1) is arranged obliquely at the lower part of the shell (1); a second ultrasonic transducer (3-2) is arranged on the shell (1) at a position corresponding to the second filter plate (3-1); and a second ultrasonic generator (3-3) is arranged above the second ultrasonic transducer (3-2); The bottom of the shell (1) is provided with a water outlet (1-4) with a valve, the water outlet (1-4) is connected to a clean water tank (5), the clean water tank (5) is connected to a backwashing device (4), the backwashing device (4) comprises a water pump (4-1), the water pump (4-1) is provided with a water pump suction pipe (4-4), the water pump suction pipe (4-4) is inserted into the clean water tank (5), the water outlet on the water pump (4-1) is connected to a first backwashing water pipe (4-2) and a second backwashing water pipe (4-3) through a tee, the inner cavities of the first backwashing water pipe (4-2) and the second backwashing water pipe (4-3) are both Tesla valve cavity structures, the first backwashing water pipe (4-2) is connected to the first filter cavity (2), the second backwashing water pipe (4-3) is connected to the second filter cavity (3), and the first backwashing water pipe (4-2) is spirally around the outer wall of the shell (1).

2. The backwashing sewage treatment device according to claim 1 is characterized in that: The upper part of the shell (1) is provided with a water inlet (1-3); the top cover (1-2) is detachably connected to the first filter chamber (2) and the first backwash water pipe (4-2).

3. The backwashing sewage treatment device according to claim 1 is characterized in that: One end of the first backwash water pipe (4-2) away from the water pump (4-1) is located in the cavity of the first filter plate (2-1), and one end of the second backwash water pipe (4-3) away from the water pump (4-1) is located on the housing (1) at one side of the highest point of the second filter plate (3-1).

4. The backwashing sewage treatment device according to claim 3 is characterized in that: A sewage discharge device (6) is arranged on the lower outer wall of the shell (1), and the sewage discharge device (6) comprises a sewage discharge pump (6-1). The sewage discharge pump (6-1) is arranged on the shell (1) outside the second filter chamber (3), and a first sewage discharge pipe (6-2) and a second sewage discharge pipe (6-3) are arranged on the sewage discharge pump (6-1). The end of the first sewage discharge pipe (6-2) away from the sewage discharge pump (6-1) is arranged at the lowest point where the outer wall of the first filter plate (2-1) and the conical partition (1-1) meet, and the end of the first sewage discharge pipe (6-2) close to the conical partition (1-1) is provided with an electric valve (6-2-1); The sewage pump (6-1) is provided with a sewage outlet (6-4).

5. The backwashing sewage treatment device according to claim 4 is characterized in that: One end of the second sewage pipe (6-3) away from the sewage pump (6-1) is arranged above the lowest point of the second filter plate (3-1).

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