Catalyst for removing total organic carbon from biochemical tail water and operation method

Abstract

The invention discloses a catalyst for removing total organic carbon in biochemical tail water and an operation method, the catalyst comprises a bottom pool frame, a material scale barrel is mounted at the upper end of the bottom pool frame, a quantity control motor is mounted at one end of the material scale barrel, a temperature control heating tank is mounted at the lower end of the quantity control motor, a shaft bearing hole is formed in one end of the temperature control heating tank, and the shaft bearing hole is communicated with the bottom pool frame. A stirring shaft is installed at one end of the shaft bearing hole, a top position motor is installed at the upper end of the stirring shaft, a water inlet is formed in the upper end of the material agent scale barrel, and when the device is used, biochemical tail water is injected into the temperature control heating tank from the water inlet, and then the quantity control motor is started and controlled to inject a catalyst in the material agent scale barrel into the temperature control heating tank at a fixed dosage. And then the temperature control heating tank is started and heated to the temperature at which the catalyst achieves the maximum activity, and meanwhile, the top motor is started to drive the stirring shaft to rotate at a high speed in the bearing shaft hole, so that the catalyst and the biochemical tail water are subjected to full fusion reaction treatment, and the catalytic efficiency of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to a catalyst for removing total organic carbon from biochemical tail water and an operation method. Background Art

[0002] Biochemical tail water mainly refers to wastewater that has been biochemically treated during sewage treatment. This wastewater may come from various industrial processes, such as production wastewater from printing and dyeing enterprises. After biochemical and multiple filtration treatments, although it has reached certain treatment standards, it is difficult to treat the total organic carbon to less than 0.5 mg / L, and cannot meet the water requirements of high-temperature and high-pressure boilers. It can only be used at the low end, such as circulating water, greening, flushing toilets, and river water replenishment. Biochemical tail water treatment faces the problems of low resource utilization and waste of water resources. Therefore, we need a catalyst and operation method for removing total organic carbon from biochemical tail water.

[0003] However, the catalysts and operating methods currently used for removing total organic carbon from biochemical tail water cannot achieve quantitative and convenient catalyst addition to improve the catalytic efficiency of the equipment during operation, nor can they improve the homogenization effect of the equipment, the convenience of cleaning the filter, or the integrated effect of the equipment in filtering water bodies. Summary of the invention

[0004] The object of the present invention is to provide a catalyst and an operating method for removing total organic carbon from biochemical tail water, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A catalyst for removing total organic carbon from biochemical tail water and an operation method, comprising a bottom pool frame, a material scale barrel is installed on the upper end of the bottom pool frame, a quantity control motor is installed on one end of the material scale barrel, a temperature control heating tank is installed on the lower end of the quantity control motor, a bearing hole is opened on one end of the temperature control heating tank, a stirring shaft is installed on one end of the bearing hole, a top motor is installed on the upper end of the stirring shaft, and a water inlet is installed on the upper end of the material scale barrel;

[0007] A six-pin limit plate is installed at the upper end of the material scale barrel, a control handle shaft is installed at the middle end of the six-pin limit plate, a downward pressure rod plate is installed at one end of the control handle shaft, a downward pressure spring is installed at the lower end of the downward pressure rod plate, and an airbag plug is installed at the lower end of the downward pressure spring;

[0008] A discharge port is installed at the lower end of the temperature-controlled heating tank, a clamping rod ring is installed at one end of the discharge port, a top ring spring is installed at the upper end of the clamping rod ring, a clamping filter screen is installed at the lower end of the clamping rod ring, a limiting groove is provided at one end of the bottom pool frame, an activated carbon supporting frame is installed at one end of the limiting groove, a percolation plate is installed at one end of the activated carbon supporting frame, and a sand supporting frame is installed at one end of the limiting groove.

[0009] Preferably, the content of the material scale barrel (2) is a mixture of a transition metal ion solution and a supported manganese-based activated carbon catalyst. The ratio of the different components may vary between 1:1 and 1:10, and the proportion of the total treatment system may also vary depending on the composition of the composite system and the treatment requirements.

[0010] Preferably, the material scale barrel is snap-connected with the bottom pool frame, and the stirring shaft forms a rotating structure with the temperature-controlled heating tank through the bearing hole.

[0011] Preferably, the lower pressure rod plate is engaged and connected with the six-pin limiting plate, and the lower pressure rod plate forms a lifting structure with the six-pin limiting plate through the position control handle shaft.

[0012] Preferably, the airbag plug forms a telescopic structure through a downward pressure spring and a downward pressure rod plate, and the airbag plug is movably connected to the temperature-controlled heating tank.

[0013] Preferably, the clamping rod ring forms a telescopic structure with the feeding port through a top ring spring, and the clamping filter screen is clamped and connected with the feeding port.

[0014] Preferably, the clamping rod ring is clamped and connected with the bayonet filter screen, and the bottom of the bayonet filter screen is arranged in a screen-like manner.

[0015] Preferably, the activated carbon frame forms a sliding structure with the bottom pool frame through a limiting groove, and the inner end of the activated carbon frame is inclined.

[0016] A catalyst for removing total organic carbon from biochemical tail water and an operation method and use method, comprising the following steps:

[0017] S1. Inject biochemical tail water into the temperature-controlled heating tank from the water inlet, and then start and control the quantity control motor to inject the catalyst in the material scale barrel into the temperature-controlled heating tank at a fixed dosage to achieve the effect of quantitative catalyst delivery;

[0018] S2. Start the temperature-controlled heating tank and heat it to the temperature at which the catalyst can achieve maximum activity. At the same time, start the top motor to drive the stirring shaft to rotate at high speed in the bearing hole, so that the catalyst and the biochemical tail water can be fully fused and reacted to improve the catalytic efficiency of the equipment.

[0019] S3. Carbon dioxide and other gases will be generated during the catalytic process. When the gas in the tank reaches a certain amount, the gas will push the airbag plug out of the temperature-controlled heating tank and discharge it. The control handle shaft can be operated to rotate on the six-pin limit plate, so that the lower pressure rod plate moves up and down in the six-pin limit plate, so that the lower pressure spring limits the airbag plug at the lower end of the six-pin limit plate with different pressures, so that the inner end of the temperature-controlled heating tank can maintain a certain air pressure to work, thereby improving the homogenization effect of the equipment;

[0020] S4, then turn on the switch at the discharge port, so that the treated water in the temperature-controlled heating tank is discharged through the bottom filter screen of the bayonet filter screen, and the bayonet filter screen can be separated by moving the clamping rod ring upward, so that the bayonet filter screen can be pulled out from one side of the discharge port to clean the filter residue. After resetting, the clamping rod ring is used to re-fix the position of the bayonet filter screen through the force of the top ring spring, thereby improving the convenience of cleaning the filter screen;

[0021] S5. Finally, the water after preliminary filtration falls into the sand frame, and is secondary filtered through the filter sand laid in the sand frame. It then seeps into the activated carbon frame from the infiltration plate installed at the lower opening along the inclined bottom of the frame, and also seeps out from the infiltration plate installed at the lower opening along the inclined bottom of the frame, thereby improving the integrated effect of the equipment in filtering water.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. Use the bottom pool rack, material scale barrel, temperature control heating tank and stirring shaft installed in the equipment to inject biochemical tail water into the temperature control heating tank from the water inlet, and then start and control the quantity control motor to inject the catalyst in the material scale barrel into the temperature control heating tank at a fixed dosage to achieve quantitative and convenient catalyst delivery, then start the temperature control heating tank and heat it to the temperature at which the catalyst achieves maximum activity, and at the same time start the top position motor to drive the stirring shaft to rotate at high speed in the bearing shaft hole, so that the catalyst and biochemical tail water can be fully fused and reacted to improve the catalytic efficiency of the equipment.

[0024] 2. Using a temperature-controlled heating tank, a position-controlling handle shaft, a downward pressure spring and an airbag plug, gases such as carbon dioxide will be generated during the catalytic process. When the gas in the tank reaches a certain amount, the gas will push the airbag plug out of the temperature-controlled heating tank and discharge it. The position-controlling handle shaft can be operated to rotate on the six-pin limit plate, so that the downward pressure rod plate can move up and down in the six-pin limit plate, so that the downward pressure spring can limit the airbag plug to the lower end of the six-pin limit plate with different pressures, so that the inner end of the temperature-controlled heating tank can maintain a certain air pressure to work, thereby improving the homogenization effect of the equipment.

[0025] 3. Use a bayonet filter screen, an activated carbon frame, a percolation plate and a sand frame. When the switch at the discharge port is turned on, the treated water in the temperature-controlled heating tank is discharged through the bottom filter of the bayonet filter screen. The bayonet filter screen can be detached from the bayonet filter screen by moving the clamping rod ring upward, so that the bayonet filter screen can be pulled out from one side of the discharge port to clean the filter residue. After resetting, the clamping rod ring is used to re-fix the position of the bayonet filter screen through the force of the top ring spring, and the water after preliminary filtration falls into the sand frame and is filtered for the second time through the filter sand laid in the sand frame. It also seeps down from the percolation plate installed at the lower end opening along the inclined frame bottom into the activated carbon frame, and also seeps out from the percolation plate installed at the lower end opening along the inclined frame bottom, thereby improving the integrated effect of the equipment in filtering water. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the front elevation structure of a catalyst and an operation method for removing total organic carbon from biochemical tail water of the present invention;

[0027] Figure 2 It is a schematic diagram of the vertical rear view structure of a catalyst and an operation method for removing total organic carbon from biochemical tail water of the present invention;

[0028] Figure 3 It is a schematic diagram of the vertical and downward view of a catalyst and an operation method for removing total organic carbon from biochemical tail water of the present invention;

[0029] Figure 4 A schematic cross-sectional view of a catalyst and an operation method for removing total organic carbon from biochemical tail water according to the present invention.

[0030] Figure 5 A catalyst and operation method for removing total organic carbon from biochemical tail water of the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0031] Figure 6 It is a schematic structural diagram of the splitting at the feed port of a catalyst and an operation method for removing total organic carbon from biochemical tail water of the present invention;

[0032] In the figure: 1. Bottom pool frame; 2. Material scale barrel; 3. Quantity control motor; 4. Temperature control heating tank; 5. Bearing shaft hole; 6. Stirring shaft; 7. Top position motor; 8. Water inlet; 9. Six-pin limit plate; 10. Control handle shaft; 11. Down pressure rod plate; 12. Down pressure spring; 13. Air bag plug; 14. Feeding port; 15. Clamping rod ring; 16. Top ring spring; 17. Bayonet filter screen; 18. Limiting groove; 19. Activated carbon frame; 20. Filtration plate; 21. Sand frame. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-6 The present invention provides a catalyst and operation method technical solution for removing total organic carbon from biochemical tail water:

[0035] A catalyst for removing total organic carbon from biochemical tail water and an operation method, comprising a bottom pool frame 1, a material scale barrel 2 is installed on the upper end of the bottom pool frame 1, a quantity control motor 3 is installed on one end of the material scale barrel 2, a temperature control heating tank 4 is installed on the lower end of the quantity control motor 3, a bearing hole 5 is opened on one end of the temperature control heating tank 4, a stirring shaft 6 is installed on one end of the bearing hole 5, a top motor 7 is installed on the upper end of the stirring shaft 6, and a water inlet 8 is installed on the upper end of the material scale barrel 2;

[0036] A six-pin limit plate 9 is provided at the upper end of the material scale barrel 2, a control handle shaft 10 is installed at the middle end of the six-pin limit plate 9, a down-pressing rod plate 11 is installed at one end of the control handle shaft 10, a down-pressing spring 12 is installed at the lower end of the down-pressing rod plate 11, and an airbag plug 13 is installed at the lower end of the down-pressing spring 12;

[0037] A discharge port 14 is installed at the lower end of the temperature-controlled heating tank 4, a clamping rod ring 15 is installed at one end of the discharge port 14, a top ring spring 16 is installed at the upper end of the clamping rod ring 15, a bayonet filter screen 17 is installed at the lower end of the clamping rod ring 15, a limiting groove 18 is opened at one end of the bottom pool frame 1, an activated carbon frame 19 is installed at one end of the limiting groove 18, a percolation plate 20 is installed at one end of the activated carbon frame 19, and a sand frame 21 is installed at one end of the limiting groove 18.

[0038] The content of the material scale barrel (2) is a mixture of transition metal ion solution and supported manganese-based activated carbon catalyst. The ratio of different components may vary from 1:1 to 1:10, and the proportion of the total treatment system may also vary depending on the composition of the composite system and the treatment requirements.

[0039] The material scale barrel 2 is snap-connected with the bottom tank frame 1 , and the stirring shaft 6 forms a rotating structure with the temperature-controlled heating tank 4 through the bearing hole 5 .

[0040] The lower pressing rod plate 11 is engaged and connected with the six-pin limiting plate 9 , and the lower pressing rod plate 11 forms a lifting structure with the six-pin limiting plate 9 through the position control handle shaft 10 .

[0041] The airbag plug 13 forms a telescopic structure with the down-pressing rod plate 11 through the down-pressing spring 12 , and the airbag plug 13 is movably connected to the temperature-control heating tank 4 .

[0042] The clamping rod ring 15 forms a telescopic structure with the feeding port 14 through the top ring spring 16 , and the clamping filter screen 17 is clamped and connected with the feeding port 14 .

[0043] The clamping rod ring 15 is clamped and connected with the bayonet filter screen 17, and the bottom of the bayonet filter screen 17 is arranged in a screen-like manner.

[0044] The activated carbon frame 19 forms a sliding structure with the bottom pool frame 1 through the limiting groove 18, and the inner end of the activated carbon frame 19 is inclined.

[0045] A catalyst for removing total organic carbon from biochemical tail water and an operation method and use method, comprising the following steps:

[0046] S1, injecting biochemical tail water into the temperature-controlled heating tank 4 from the water inlet 8, and then starting and controlling the quantity control motor 3 to inject the catalyst in the material scale barrel 2 into the temperature-controlled heating tank 4 at a fixed dosage to achieve the effect of quantitatively adding the catalyst;

[0047] S2, start the temperature control heating tank 4 and heat it to the temperature at which the catalyst achieves maximum activity, and at the same time start the top motor 7 to drive the stirring shaft 6 to rotate at high speed in the bearing hole 5, so that the catalyst and the biochemical tail water can be fully fused and reacted to improve the catalytic efficiency of the equipment;

[0048] S3. Carbon dioxide and other gases will be generated during the catalytic process. When the gas in the tank reaches a certain amount, the gas will push the airbag plug 13 out of the temperature control heating tank 4 and discharge it. The control handle shaft 10 can be operated to rotate on the six-foot limit plate 9, so that the lower pressure rod plate 11 moves up and down in the six-foot limit plate 9, so that the lower pressure spring 12 limits the airbag plug 13 to the lower end of the six-foot limit plate 9 with different pressures, so that the inner end of the temperature control heating tank 4 can maintain a certain air pressure to work, thereby improving the homogenization effect of the equipment;

[0049] S4, then turn on the switch at the discharge port 14, so that the treated water in the temperature-controlled heating tank 4 is discharged through the bottom filter of the bayonet filter screen 17, and the bayonet filter screen 17 can be separated by moving the clamping rod ring 15 upward, so that the bayonet filter screen 17 can be drawn out from one side of the discharge port 14 to clean the filter residue, and after resetting, the clamping rod ring 15 is re-fixed by the force of the top ring spring 16 to improve the convenience of cleaning the filter screen;

[0050] S5. Finally, the water after preliminary filtration falls into the sand receiving frame 21, and is secondarily filtered through the filter sand laid in the sand receiving frame 21, and seeps into the activated carbon receiving frame 19 from the infiltration plate 20 installed at the lower opening along the inclined frame bottom, and also seeps out from the infiltration plate 20 installed at the lower opening along the inclined frame bottom, thereby improving the integrated effect of the equipment in filtering water.

[0051] It should be noted that the present invention is a catalyst for removing total organic carbon from biochemical tail water and an operating method. When in use, the biochemical tail water is first injected into the temperature-controlled heating tank 4 from the water inlet 8, and then the quantity-controlled motor 3 is started and controlled to inject the catalyst in the material scale barrel 2 into the temperature-controlled heating tank 4 at a fixed dosage, so as to achieve quantitative and convenient catalyst delivery, and then the temperature-controlled heating tank 4 is started and heated to a temperature at which the catalyst achieves maximum activity, and at the same time, the top motor 7 is started to drive the stirring shaft 6 to rotate at a high speed in the bearing hole 5, so that the catalyst and the biochemical tail water can achieve full fusion reaction treatment, thereby improving the catalytic efficiency of the equipment, and gases such as carbon dioxide will be generated during the catalytic process. When the gas in the tank reaches a certain amount, the gas will push the airbag plug 13 out of the temperature-controlled heating tank 4 and discharge it. The position-controlled handle shaft 10 can be operated to rotate on the six-foot limit plate 9, so that the lower pressure rod plate 11 moves up and down in the six-foot limit plate 9, so that the lower pressure spring 12 limits the airbag plug 13 to the lower end of the six-foot limit plate 9 with different pressures, so that the control The inner end of the temperature-controlled heating tank 4 can maintain a certain air pressure to work, thereby improving the homogenization effect of the equipment. Then, the switch at the discharge port 14 is turned on, so that the treated water in the temperature-controlled heating tank 4 is discharged through the bottom filter screen of the bayonet filter screen 17, and can be separated from the bayonet filter screen 17 by moving the clamping rod ring 15 upward, so that the bayonet filter screen 17 can be pulled out from one side of the discharge port 14 to clean the filter residue. After resetting, the clamping rod ring 15 is used to re-fix the position of the bayonet filter screen 17 through the force of the top ring spring 16, thereby improving the convenience of cleaning the filter screen. The water after preliminary filtration falls into the sand receiving frame 21, and is filtered twice by the filter sand laid in the sand receiving frame 21, and seeps into the activated carbon receiving frame 19 from the infiltration plate 20 installed at the lower end opening along the inclined bottom of the frame, and also seeps out from the infiltration plate 20 installed at the lower end opening along the inclined bottom of the frame, thereby improving the integrated effect of the equipment in filtering water. In this way, a catalyst and operation method for removing total organic carbon from biochemical tail water are completed.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A catalyst for removing total organic carbon from biochemical tail water, characterized in that: It comprises a bottom pool frame (1), a material dosage scale barrel (2) is installed on the upper end of the bottom pool frame (1), a quantity control motor (3) is installed on one end of the material dosage scale barrel (2), a temperature control heating tank (4) is installed on the lower end of the quantity control motor (3), a bearing hole (5) is opened on one end of the temperature control heating tank (4), a stirring shaft (6) is installed on one end of the bearing hole (5), a top motor (7) is installed on the upper end of the stirring shaft (6), and a water inlet (8) is installed on the upper end of the material dosage scale barrel (2); A six-pin limit plate (9) is provided at the upper end of the material scale barrel (2), a position control handle shaft (10) is installed at the middle end of the six-pin limit plate (9), a downward pressure rod plate (11) is installed at one end of the position control handle shaft (10), a downward pressure spring (12) is installed at the lower end of the downward pressure rod plate (11), and an airbag plug (13) is installed at the lower end of the downward pressure spring (12); The lower end of the temperature-controlled heating tank (4) is provided with a discharge port (14), one end of the discharge port (14) is provided with a clamping rod ring (15), the upper end of the clamping rod ring (15) is provided with a top ring spring (16), the lower end of the clamping rod ring (15) is provided with a clamping filter screen (17), one end of the bottom pool frame (1) is provided with a limiting groove (18), one end of the limiting groove (18) is provided with an activated carbon frame (19), one end of the activated carbon frame (19) is provided with a percolation plate (20), and one end of the limiting groove (18) is provided with a sand frame (21).

2. The catalyst and operation method for removing total organic carbon from biochemical tail water according to claim 1, characterized in that: The content of the material scale barrel (2) is a mixture of a transition metal ion solution and a supported manganese-based activated carbon catalyst. The ratio of different components may vary between 1:1 and 1:10, and the proportion of the total treatment system may also vary depending on the composition of the composite system and the treatment requirements.

3. The catalyst and operation method for removing total organic carbon from biochemical tail water according to claim 1, characterized in that: The material scale barrel (2) is snap-fitted and connected to the bottom tank frame (1), and the stirring shaft (6) forms a rotating structure with the temperature-controlled heating tank (4) through the bearing hole (5).

4. The catalyst for removing total organic carbon from biochemical tail water according to claim 1, characterized in that: The lower pressure rod plate (11) is snap-connected with the six-pin limit plate (9), and the lower pressure rod plate (11) forms a lifting structure with the six-pin limit plate (9) through the position control handle shaft (10).

5. The catalyst for removing total organic carbon from biochemical tail water according to claim 1, characterized in that: The airbag plug (13) forms a telescopic structure with the down-pressing spring (12) and the down-pressing rod plate (11), and the airbag plug (13) is movably connected to the temperature-controlled heating tank (4).

6. The catalyst for removing total organic carbon from biochemical tail water according to claim 1, characterized in that: The clamping rod ring (15) forms a telescopic structure with the feeding port (14) through a top ring spring (16), and the clamping filter screen (17) is clamped and connected with the feeding port (14).

7. The catalyst for removing total organic carbon from biochemical tail water according to claim 1, characterized in that: The clamping rod ring (15) is clamped and connected with the bayonet filter screen (17), and the bottom of the bayonet filter screen (17) is arranged in a screen-like manner.

8. The catalyst for removing total organic carbon from biochemical tail water according to claim 1, characterized in that: The activated carbon support frame (19) forms a sliding structure with the bottom pool frame (1) through the limiting groove (18), and the inner end of the activated carbon support frame (19) is arranged in an inclined manner.

9. A catalyst and operation method for removing total organic carbon from biochemical tail water, characterized in that: The following steps are involved: S1, injecting biochemical tail water into the temperature-controlled heating tank (4) from the water inlet (8), and then starting and controlling the quantity control motor (3) to inject the catalyst in the material scale barrel (2) into the temperature-controlled heating tank (4) at a fixed dosage, so as to achieve the effect of quantitatively adding the catalyst; S2, starting the temperature-controlled heating tank (4) and heating it to a temperature at which the catalyst can achieve maximum activity, and at the same time starting the top motor (7) to drive the stirring shaft (6) to rotate at high speed in the bearing hole (5), so that the catalyst and the biochemical tail water can be fully fused and reacted, thereby improving the catalytic efficiency of the equipment; S3. Carbon dioxide and other gases are generated during the catalytic process. When the gas in the tank reaches a certain amount, the gas pushes the airbag plug (13) out of the temperature control heating tank (4) and discharges. The control handle shaft (10) can be operated to rotate on the six-pin limit plate (9), so that the lower pressure rod plate (11) moves up and down in the six-pin limit plate (9), so that the lower pressure spring (12) limits the airbag plug (13) at the lower end of the six-pin limit plate (9) with different pressures, so that the inner end of the temperature control heating tank (4) can maintain a certain air pressure to work, thereby improving the homogenization effect of the equipment; S4, the switch at the discharge port (14) is turned on again, so that the treated water in the temperature-controlled heating tank (4) is discharged through the bottom filter screen of the bayonet filter screen (17), and the bayonet filter screen (17) can be separated by moving the clamping rod ring (15) upward, so that the bayonet filter screen (17) can be drawn out from one side of the discharge port (14) to clean the filter residue. After resetting, the clamping rod ring (15) is used to fix the position of the bayonet filter screen (17) again through the force of the top ring spring (16), thereby improving the convenience of cleaning the filter screen; S5. Finally, the water after preliminary filtration falls into the sand receiving frame (21), and is secondary filtered through the filter sand laid in the sand receiving frame (21), and then seeps into the activated carbon receiving frame (19) from the filter plate (20) installed at the lower opening along the inclined frame bottom, and then seeps out from the filter plate (20) installed at the lower opening along the inclined frame bottom, thereby improving the integrated effect of the equipment in filtering water.

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