Rotational flow solid-liquid separator

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a rotational flow solid-liquid separator which comprises a lower barrel, a detachable upper barrel is mounted at the upper end of the lower barrel, a water return plate is mounted on the upper side in the lower barrel, and a conical filter screen is fixedly connected to the lower end of the water return plate; a first one-way valve is mounted at the upper end of the upper barrel; a water outlet flange and a second one-way valve are fixedly connected to the rear end of the upper barrel in sequence; an offset sewage inlet and outlet pipe is mounted on the lower side of the front end of the lower barrel. According to the utility model, the conical filter screen is utilized to prevent impurities from entering the sewage tank to precipitate, and the structures of the conical filter screen and the water return plate are utilized to enable the sewage to form rotational flow, so that the water pressure is increased, and the rotational flow solid-liquid separator is subjected to all-directional and dead-angle-free backwashing at the same time, and the impurities and the sewage in the rotational flow solid-liquid separator are forcibly lifted outdoors together; therefore, the purpose of washing the cyclone solid-liquid separator is achieved, the interior of the cyclone solid-liquid separator is kept clean, manual cleaning is not needed, the workload of workers is reduced, and meanwhile the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a cyclone solid-liquid separator. Background Art

[0002] With the acceleration of urbanization, the scale of sewage pipe network construction continues to expand, and the problem of pipe network blockage has become increasingly prominent. Therefore, in the sewage treatment process in urban sewage pipe networks, industrial wastewater pipelines and other fields, the use of crushers is indispensable. The crushed sewage will settle directly into the sewage tank, making it difficult to clean and unable to be completely discharged.

[0003] In order to solve the problem of impurities accumulating in sewage tanks, current technology generally requires the installation of filters in the pipes. However, as time goes by, the filters are prone to clogging, affecting the normal flow of sewage, and require regular manual cleaning, which increases the workload of workers.

[0004] Therefore, to address the problem that the above-mentioned filter screen is easily clogged, affecting the normal flow of sewage and requiring manual cleaning, a cyclone solid-liquid separator can be designed. Utility Model Content

[0005] In order to overcome the problem that the filter is easily clogged, affecting the normal flow of sewage, manual cleaning is required.

[0006] The technical solution of the utility model is: a cyclone solid-liquid separator, comprising a lower cylinder, a detachable upper cylinder installed on the upper end of the lower cylinder, a conical filter installed in the lower cylinder, a deflection plate installed on the upper side of the lower cylinder, the deflection plate is fixedly connected to the conical filter, a first one-way valve is installed on the upper end of the upper cylinder, a water outlet flange and a second one-way valve are fixedly connected to the rear end of the upper cylinder in sequence, and a biased sewage inlet and outlet pipe is installed on the lower side of the front end of the lower cylinder.

[0007] Preferably, the lower cylinder, upper cylinder, water reflection plate, conical filter screen and water outlet flange are made of SUS304 stainless steel.

[0008] Preferably, the height of the deflector plate is 15 mm; the thickness of the deflector plate and the conical filter screen are the same.

[0009] Preferably, the upper cylinder adopts a hollow frustum-shaped structure that is smaller at the top and larger at the bottom; the lower cylinder is a cylindrical structure with an open top; and the inner diameter of the lower cylinder is equal to the inner diameter of the lower end of the upper cylinder.

[0010] Preferably, the vertical distance from the center point of the offset sewage inlet and outlet pipe to the axis of the lower cylinder is 75 mm.

[0011] Beneficial effects of the utility model:

[0012] The conical filter is used to filter and block impurities in the sewage to prevent impurities from entering the sewage tank and settling, which causes problems such as inability to completely discharge and difficult to clean. At the same time, the sewage in the sewage tank is pressurized and returned to the cyclone solid-liquid separator. The special structural design of the conical filter and the backwash plate makes the sewage form a cyclone, which increases the water pressure and performs all-round, dead-angle backwashing on the cyclone solid-liquid separator. The debris and sewage in the cyclone solid-liquid separator are forcibly lifted to the outside, thereby flushing the cyclone solid-liquid separator and keeping the interior of the cyclone solid-liquid separator clean. No manual cleaning is required, which reduces the workload of workers and reduces maintenance costs. It does not affect the normal use of the cyclone solid-liquid separator and does not require repeated disassembly and assembly, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the cyclone solid-liquid separator of the present utility model;

[0014] Figure 2 This is a schematic diagram of the side structure of the cyclone solid-liquid separator of the present utility model;

[0015] Figure 3 This is a schematic diagram of the front structure of the cyclone solid-liquid separator of the present utility model;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the cyclone solid-liquid separator of the present utility model;

[0017] Figure 5 This is a structural diagram of the connection between the dewatering plate and the conical filter screen in the cyclone solid-liquid separator of the present utility model;

[0018] Figure 6 This is a structural diagram of the water return plate of the cyclone solid-liquid separator of the present utility model;

[0019] Figure 7 This is a schematic diagram of the three-dimensional structure of Example 2 of the cyclone solid-liquid separator of the present utility model.

[0020] Explanation of the accompanying symbols: 1-sewage pipe crusher, 2-cyclone solid-liquid separator, 201-lower cylinder, 202-upper cylinder, 203-conical filter, 204-reflection plate, 205-first one-way valve, 206-outlet flange, 207-second one-way valve, 208-biased sewage inlet and outlet pipe, 3-sewage tank. DETAILED DESCRIPTION

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

[0022] See also Figure 1-6The utility model provides an embodiment, a cyclone solid-liquid separator, comprising a cylindrical lower cylinder 201 with an open upper end, a detachable upper cylinder 202 installed on the upper end of the lower cylinder 201, the upper cylinder 202 is a hollow frustum with a small upper end and a large lower end, and the inner diameter of the lower cylinder 201 is equal to the inner diameter of the lower end of the upper cylinder 202; a conical filter 203 is installed in the lower cylinder 201, a reflector 204 is installed on the upper side of the lower cylinder 201, the reflector 204 is fixedly connected to the conical filter 203, a first one-way valve 205 is installed on the upper end of the upper cylinder 202, and a water outlet flange 206 and a second one-way valve 207 are fixedly connected to the rear end of the upper cylinder 202 in sequence, and a biased sewage inlet and outlet pipe 208 is installed on the lower side of the front end of the lower cylinder 201.

[0023] The lower cylinder 201 , the upper cylinder 202 , the deflector plate 204 , the conical filter screen 203 and the outlet flange 206 are made of SUS304 stainless steel; the height of the deflector plate 204 is 15 mm; and the thickness of the deflector plate 204 and the conical filter screen 203 are the same.

[0024] This cyclone solid-liquid separator is suitable for general domestic sewage or sewage of similar nature, and avoids the connection of special sewage containing a large amount of solid metal particles, strong acid and strong alkali, etc.

[0025] The vertical distance from the center point of the offset sewage inlet and outlet pipe 208 to the axis of the lower cylinder 201 is 75 mm.

[0026] Preferably: the mesh diameter and the number of holes of the conical filter 203 are selected according to actual usage and determined according to the cross-section of the water outlet pipe.

[0027] The sewage treatment capacity of this cyclone solid-liquid separator is: 0~35m 3 / h. Example 1

[0028] The offset sewage inlet and outlet pipe 208 is connected to the sewage tank; the second one-way valve 207 is connected to the municipal drainage network; the first one-way valve 205 is connected to the outlet of the sewage pipe grinder;

[0029] The steps are as follows:

[0030] Step 1: First, ensure that the inlet and outlet pipes are well connected to the cyclone solid-liquid separator 2 to ensure there is no water leakage;

[0031] Step 2: Open the first one-way valve 205 and close the second one-way valve 207 at the same time. The sewage flows into the lower cylinder 201 through the first one-way valve 205 and the upper cylinder 202. Under the action of the deflector plate 204 and the conical filter 203, the sewage forms a vortex. The cyclone solid-liquid separation device intercepts most of the debris in the cyclone solid-liquid separator. The sewage enters the external sewage tank from the biased sewage inlet and outlet pipe 208. As the sewage continues to enter, when the water level in the sewage tank reaches a preset value, the water pump in the sewage tank is started. At this time, the first one-way valve 205 is closed and the second one-way valve 207 is opened. The sewage is sent from the biased sewage inlet and outlet pipe 208 into the lower cylinder 201. The sewage and the intercepted debris are mixed, and then discharged into the municipal drainage network through the outlet flange 206 and the second one-way valve 207. Example 2

[0032] See also Figure 7 , the present cyclone solid-liquid separator 2 is provided with two groups in parallel, and the biased sewage inlet and outlet pipes 208 of the two groups of cyclone solid-liquid separators 2 are both connected to the sewage tank 3; the second one-way valves 207 of the two groups of cyclone solid-liquid separators 2 are both connected to the municipal drainage network; the first one-way valves 205 of the two groups of cyclone solid-liquid separators are both connected to the outlet end of the sewage pipe grinder 1;

[0033] The steps are as follows:

[0034] Step 1: First, ensure that the inlet and outlet pipes of the sewage pipe grinder 1 are well connected to the cyclone solid-liquid separator 2 to ensure there is no water leakage;

[0035] Step 2: One group of cyclone solid-liquid separators is working, and the other group of cyclone solid-liquid separators is on standby. The first one-way valve 205 of the cyclone solid-liquid separator of the working group is opened, and the second one-way valve 207 is closed at the same time. The pulverized sewage connected to the outlet end of the sewage pipe grinder flows into the lower cylinder 201 through the first one-way valve 205 and the upper cylinder 202. Under the action of the deflector plate 204 and the conical filter 203, the sewage forms a cyclone, and most of the debris is intercepted in the conical filter 203. The sewage enters the external sewage tank from the biased sewage inlet and outlet pipe 208. As the sewage continues to enter, when the water level in the sewage tank reaches the preset value, the water pump in the sewage tank is started. At this time, the first one-way valve 205 of the cyclone solid-liquid separator 2 of the working group is closed and the second one-way valve 207 is opened. Sewage is sent into the lower cylinder 201 from the offset sewage inlet and outlet pipe 208, and the sewage is mixed with the intercepted debris. Then, it is discharged into the municipal drainage network through the outlet flange 206 and the second one-way valve 207. At this time, if there is still water inflow, the sewage is allowed to enter the sewage tank through another set of cyclone solid-liquid separators 2. The started water pump pressurizes the sewage in the sewage tank 3 and forcibly lifts the debris in the corresponding cyclone solid-liquid separator to the outside to flush the cyclone solid-liquid separator 2. The special design of the cyclone solid-liquid separator 2 causes the sewage to form a vortex, increases the water pressure, and performs all-round, dead-angle backwashing on the cyclone solid-liquid separator 2 to keep the inside of the cyclone solid-liquid separator 2 clean. When the water level drops to the set water level, the water pump automatically stops running, completing the sewage discharge process.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A cyclone solid-liquid separator, comprising a lower cylinder (201), characterized in that: A detachable upper cylinder (202) is mounted on the upper end of the lower cylinder (201), a conical filter (203) is mounted inside the lower cylinder (201), a water deflection plate (204) is mounted on the upper inner side of the lower cylinder (201), the water deflection plate (204) is fixedly connected to the conical filter (203), a first one-way valve (205) is mounted on the upper end of the upper cylinder (202), a water outlet flange (206) and a second one-way valve (207) are fixedly connected to the rear end of the upper cylinder (202) in sequence, and a biased sewage inlet and outlet pipe (208) is mounted on the lower front end of the lower cylinder (201).

2. The cyclone solid-liquid separator according to claim 1, characterized in that: The lower cylinder (201), the upper cylinder (202), the water reflection plate (204), the conical filter (203) and the water outlet flange (206) are all made of SUS304 stainless steel.

3. The cyclone solid-liquid separator according to claim 1, characterized in that: The height of the deflector plate (204) is 15 mm; the thickness of the deflector plate (204) and the conical filter screen (203) are the same.

4. The cyclone solid-liquid separator according to claim 1, characterized in that: The upper cylinder (202) adopts a hollow truncated cone structure that is smaller at the top and larger at the bottom; the lower cylinder (201) is a cylindrical structure with an open top; the inner diameter of the lower cylinder (201) is equal to the inner diameter of the lower end of the upper cylinder (202).

5. The cyclone solid-liquid separator according to claim 1, characterized in that: The vertical distance from the center point of the offset sewage inlet and outlet pipe (208) to the axis of the lower cylinder (201) is 75 mm.

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