High-efficiency polyester dyeing wastewater treatment device

Abstract

The invention discloses a high-efficiency polyester dyeing wastewater treatment device, and relates to the technical field of textile printing and dyeing wastewater treatment equipment.The high-efficiency polyester dyeing wastewater treatment device comprises a purification box and a dry waste box, and the purification box and the dry waste box are provided with solid-liquid separation mechanisms; the solid-liquid separation mechanism comprises a purification box and an obliquely-arranged transmission shell installed above the dry waste box, the upper portion of the outer arc wall of the transmission shell communicates with a discharging hopper, a motor is fixedly installed on the outer side wall of the transmission shell, and a driving shaft of the motor is connected with a rotating column rotationally connected with the inner side wall of the transmission shell; according to the solid-liquid separation device disclosed by the invention, through the design of the obliquely arranged transmission shell and the spiral blade, a waste water and solid mixture forms axial movement in a spiral propelling process, solid-liquid separation is effectively realized, round holes in the spiral blade allow liquid and fine particles to seep out, and solid residues are pushed to the higher end of the transmission shell; furthermore, residual suspended matters are intercepted by a curved surface filter plate, so that solid impurities in the wastewater are effectively separated.

Description

Technical Field

[0001] The invention relates to the technical field of textile printing and dyeing wastewater treatment equipment, in particular to a high-efficiency polyester dyeing wastewater treatment device. Background Art

[0002] In the polyester dyeing industrial production process, a large amount of wastewater containing dyes, auxiliaries and organic pollutants will be generated. This type of wastewater has complex composition, high chroma and high chemical oxygen demand (COD). If it is directly discharged without effective treatment, it will cause serious pollution to the environment. At present, common polyester dyeing wastewater treatment processes include coagulation sedimentation, biodegradation, activated carbon adsorption filtration and other methods, but these methods still have certain limitations during operation.

[0003] Existing wastewater treatment devices usually focus on the purification and standard discharge of wastewater, but lack effective follow-up treatment methods for waste residues generated during the treatment process, such as flocculated sludge and filter residues. In actual operation, waste residues are often discharged directly through the residue discharge port. However, since some wastewater still remains inside the waste residue, its water content is relatively high, which not only increases the volume and weight of the waste residue, but may also cause secondary pollution, such as leachate seepage and diffusion of harmful substances. Waste residues with high water content are not conducive to subsequent transportation, landfill or resource utilization, and increase disposal costs. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency polyester dyeing wastewater treatment device to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention provides a high-efficiency polyester dyeing wastewater treatment device, comprising a purification box and a dry waste box, wherein the purification box and the dry waste box are provided with a solid-liquid separation mechanism, the solid-liquid separation mechanism comprises an inclined transmission shell installed above the purification box and the dry waste box, a lower hopper is connected to the upper part of the outer arc wall of the transmission shell, a motor is fixedly installed on the outer side wall of the transmission shell, a driving shaft of the motor is connected to a rotating column rotatably connected to the inner side wall of the transmission shell, a spiral blade is installed on the outer arc wall of the rotating column, a plurality of circular holes are opened on the spiral blade, and a wastewater channel and a waste channel are connected to the bottom wall of the transmission shell, the wastewater channel and the waste channel are respectively connected to the purification box and the dry waste box, and a curved filter plate is installed at the connection between the transmission shell and the wastewater channel.

[0006] Furthermore, a mounting drawer is provided in the purification box, mesh plates are installed on the upper and lower sides of the mounting drawer, a number of activated carbon particles are placed in the mounting drawer, and a convenient disassembly mechanism is provided in the mounting drawer, the convenient disassembly mechanism includes a fixing block which is located on the outside of the purification box and fixedly connected to the mounting drawer, a slide groove is provided in the fixing block, a threaded block and a bidirectional screw rod are provided in the slide groove, the threaded blocks are two in number and are threadedly connected to both ends of the bidirectional screw rod, a slide bar is fixedly installed on the threaded block, an abutment bar is installed on the side of the slide bar close to the mesh plate, and abutment grooves matching the abutment bar are provided on both sides of the mesh plate.

[0007] Furthermore, movable grooves are provided on opposite sides of the fixing block and the mounting drawer, and the movable grooves can accommodate the horizontal sliding of the sliding bar and the abutting bar.

[0008] Furthermore, the bidirectional screw is rotatably connected to the inner wall of the fixed block, a knob is installed on the outer wall of the fixed block, the knob is fixedly connected to one end of the bidirectional screw, and a handle is installed on the side of the mounting drawer connected to the fixed block.

[0009] Furthermore, visualization windows are installed on the upper and lower sections of the front of the purification box, and brackets are installed at both ends of the bottom of the transmission shell, and the brackets are respectively connected to the upper surfaces of the purification box and the dry waste box by bolts.

[0010] Furthermore, a square groove matching the longitudinal section of the installation drawer is formed on the side wall of the purification box, the installation drawer is slidably connected to the inner side wall of the purification box, and a sealing ring is sleeved on one side of the installation drawer close to the square groove.

[0011] Furthermore, an inclined filter plate is installed in the dry waste box, a wastewater collection box is installed below the inclined filter plate, the wastewater collection box is connected to a water pipe that runs through the purification box, and the other end of the water pipe is located above the installation drawer.

[0012] Furthermore, the inclined filter plate is arranged to be inclined 45 degrees downward toward a side away from the purification box, and the outer side wall of the dry waste box is connected to a discharge box.

[0013] Furthermore, the inner bottom wall of the discharge box is inclined toward the inclined end of the inclined filter plate, and the inclination angle is 45 degrees. A through groove is provided on the bottom wall of the discharge box.

[0014] Furthermore, a slope block is installed on the inner bottom wall of the purification box, and a water outlet pipe is connected to the bottom of the outer side wall of the purification box, and one end of the water outlet pipe is located on a side close to the inclined end of the slope block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts the design of inclined transmission shell and spiral blades, and the wastewater and solid mixture forms axial movement during the spiral propulsion process, which effectively realizes solid-liquid separation. The circular holes on the spiral blades allow liquid and fine particles to seep out, while the solid residue is pushed to the higher end of the transmission shell, and the residual suspended matter is further intercepted by the curved filter plate, ensuring that the solid impurities in the wastewater are effectively separated.

[0016] 2. The present invention forms a closed space by installing the mesh plate and activated carbon particles in the drawer, which is used to adsorb dye molecules and organic pollutants in the wastewater. The design of the easy-to-disassemble mechanism allows the user to easily take out and replace the activated carbon particles, as well as clean the mesh plate, thereby improving the maintenance convenience and use efficiency of the device. Under the guidance of the inclined block, the wastewater flows to the outlet pipe, avoiding the accumulation of sediment in the purification box and ensuring the smooth discharge of the wastewater. The inclined filter plate in the dry waste box is used to separate and collect dry waste generated during the wastewater treatment process. Under the action of gravity, the solid waste slides along the inclined surface of the inclined filter plate to the discharge box, and is finally discharged through the through groove on the bottom wall of the discharge box, thereby realizing convenient treatment of the waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the main body of a high-efficiency polyester dyeing wastewater treatment device; Figure 2 It is a schematic diagram of the structure inside the transmission shell of a high-efficiency polyester dyeing wastewater treatment device; Figure 3 It is a schematic diagram of the structure inside the purification box of a high-efficiency polyester dyeing wastewater treatment device; Figure 4 It is a structural schematic diagram of a mounting drawer in a high-efficiency polyester dyeing wastewater treatment device; Figure 5 It is a schematic diagram of the structure inside the dry waste box in a high-efficiency polyester dyeing wastewater treatment device; Figure 6 It is a cross-sectional view of an installation drawer in a high-efficiency polyester dyeing wastewater treatment device; Figure 7 It is a schematic diagram of the structure of a sliding bar and an abutting bar in a high-efficiency polyester dyeing wastewater treatment device; Figure 8 A schematic diagram of the structure of a high-efficiency polyester dyeing wastewater treatment device with a movable tank installed on one side In the figure: 1. Purification box; 2. Dry waste box; 3. Transmission shell; 4. Lower hopper; 5. Water outlet pipe; 6. Visualization window; 7. Rotating column; 8. Motor; 9. Bracket; 10. Spiral blade; 11. Round hole; 12. Wastewater channel; 13. Waste channel; 14. Curved filter plate; 15. Water pipe; 16. Installation drawer; 17. Inclined block; 18. Fixed block; 19. Pull handle; 20. Knob; 21. Mesh plate; 22. Activated carbon particles; 23. Inclined filter plate; 24. Discharge box; 25. Wastewater collection box; 26. Bidirectional screw; 27. Threaded block; 28. Slide bar; 29. ​​Movable groove; 30. Abutment bar. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-8 , the present invention provides a technical solution: See also Figure 1 and Figure 2 As shown, a high-efficiency polyester dyeing wastewater treatment device includes a purification box 1 and a dry waste box 2, the purification box 1 and the dry waste box 2 are provided with a solid-liquid separation mechanism, the solid-liquid separation mechanism includes an inclined transmission shell 3 installed above the purification box 1 and the dry waste box 2, the outer arc wall of the transmission shell 3 is connected with a lower hopper 4, the outer side wall of the transmission shell 3 is fixedly installed with a motor 8, the driving shaft of the motor 8 is connected with a rotating column 7 rotatably connected to the inner side wall of the transmission shell 3, the outer arc wall of the rotating column 7 is installed with a spiral blade 10, the spiral blade 10 is opened with a plurality of circular holes 11, the bottom wall of the transmission shell 3 is connected with a wastewater channel 12 and a waste channel 13, the wastewater channel 12 and the waste channel 13 are respectively connected to the purification box 1 and the dry waste box 2, and a curved filter plate 14 is installed at the connection between the transmission shell 3 and the wastewater channel 12.

[0020] During the specific implementation process, the dyeing wastewater enters the transmission shell 3 through the lower hopper 4, and the motor 8 drives the rotating column 7 to drive the spiral blade 10 to rotate. Since the transmission shell 3 is arranged at an angle, the wastewater and solid mixture form axial movement during the spiral propulsion process. The circular holes 11 on the spiral blade 10 allow liquid and fine particles to seep out, and the solid residue is pushed to the higher end of the transmission shell 3 by the spiral blade 10. The curved filter plate 14 further intercepts the residual suspended matter. The separated liquid flows into the purification box 1 through the wastewater channel 12, and the solid waste is discharged into the dry waste box 2 through the waste channel 13. The aperture of the circular hole 11 of the spiral blade 10 can be adjusted according to the characteristics of the wastewater particles to optimize the filtration efficiency.

[0021] See also Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, a mounting drawer 16 is provided in the purification box 1, mesh plates 21 are installed on the upper and lower sides of the mounting drawer 16, a number of activated carbon particles 22 are placed in the mounting drawer 16, and a convenient disassembly mechanism is provided in the mounting drawer 16, which includes a fixing block 18 located outside the purification box 1 and fixedly connected to the mounting drawer 16, a slide groove is provided in the fixing block 18, a threaded block 27 and a bidirectional screw rod 26 are provided in the slide groove, two threaded blocks 27 are provided and are threadedly connected to both ends of the bidirectional screw rod 26, a slide bar 28 is fixedly installed on the threaded block 27, and an abutment bar 30 is installed on the side of the slide bar 28 close to the mesh plate 21, Abutment grooves matching the abutment strip 30 are provided on both sides of the mesh plate 21, and movable grooves 29 are provided on the opposite sides of the fixed block 18 and the mounting drawer 16. The movable grooves 29 can accommodate the horizontal sliding of the slide bar 28 and the abutment strip 30. The bidirectional screw rod 26 is rotatably connected to the inner wall of the fixed block 18, and the outer wall of the fixed block 18 is installed with a knob 20, and the knob 20 is fixedly connected to one end of the bidirectional screw rod 26. A handle 19 is installed on the side where the mounting drawer 16 and the fixed block 18 are connected. The side wall of the purification box 1 is provided with a square groove matching the longitudinal section of the mounting drawer 16, and the mounting drawer 16 is slidably connected to the inner wall of the purification box 1.

[0022] In the specific implementation process, the installation drawer 16 is pushed into the box body through the square groove of the side wall of the purification box 1, and the mesh plate 21 and the installation drawer 16 form a closed space, and the activated carbon particles 22 are filled inside to adsorb the dye molecules and organic pollutants in the wastewater. The rotating knob 20 drives the bidirectional screw rod 26 to rotate, driving the two threaded blocks 27 to move toward or away from each other along the slide groove. The threaded block 27 pushes the abutment bar 30 to slide horizontally into the abutment grooves on both sides of the mesh plate 21 through the slide bar 28. The movable groove 29 provides a sliding space, thereby pressing the mesh plate 21 to prevent To prevent activated carbon leakage, when the activated carbon particles 22 need to be replaced or the mesh plate 21 needs to be taken out for cleaning, the installation drawer 16 is pulled out horizontally from the square groove of the purification box 1 through the pull handle 19, and the knob 20 is rotated in the opposite direction to make the bidirectional screw rod 26 drive the abutment bar 30 to withdraw from the abutment groove of the mesh plate 21, so as to realize the overall removal. After replacing the activated carbon particles 22 or cleaning the mesh plate 21, the abutment bar 30 is re-locked and pushed into the installation drawer 16. The mesh size of the mesh plate 21 can be adjusted according to the particle size of the activated carbon particles 22 to prevent the loss of particles.

[0023] See also Figure 1 and Figure 2 As shown, a sealing ring is provided on one side of the installation drawer 16 close to the square groove, visualization windows 6 are installed on the upper and lower sections of the front of the purification box 1, and brackets 9 are installed at both ends of the bottom of the transmission shell 3. The brackets 9 are respectively connected to the upper surfaces of the purification box 1 and the dry waste box 2 by bolts. During the specific implementation process, the sealing ring installed on the side of the installation drawer 16 close to the square groove is made of rubber or silicone to ensure that it fits tightly with the side wall of the box after being pushed into the purification box 1 to prevent leakage or bypass of untreated wastewater. The sealing ring can withstand the chemical corrosion of polyester dyeing wastewater and needs to be checked and replaced regularly after long-term use. The visualization window 6 is made of transparent acrylic or tempered glass for real-time observation. The upper visualization window 6 is used to observe the working status of the installation drawer 16, and the lower visualization window 6 is used to observe the clarity of the purified water or the accumulation of sediment. The edge of the visualization window 6 is waterproof and sealed to prevent water seepage from affecting the observation effect. The bracket 9 is fixed to the upper surface of the purification box 1 and the dry waste box 2 by bolts to form a triangular support structure to ensure the stability of the transmission shell 3. The bracket 9 is made of stainless steel or anti-corrosion coated metal to adapt to the humidity and corrosiveness of the wastewater treatment environment.

[0024] See also Figure 5As shown, an inclined filter plate 23 is installed in the dry waste box 2, and a wastewater collection box 25 is installed below the inclined filter plate 23. The wastewater collection box 25 is connected to a water pipe 15 that runs through the purification box 1, and the other end of the water pipe 15 is located above the installation drawer 16. The inclined filter plate 23 is inclined 45 degrees downward toward the side away from the purification box 1, and the outer wall of the dry waste box 2 is connected to a discharge box 24. The inner bottom wall of the discharge box 24 is inclined toward the inclined end of the inclined filter plate 23 at an angle of 45 degrees, and a through groove is provided on the bottom wall of the discharge box 24. During the specific implementation process, the inclined filter plate 23 can separate and collect dry waste generated during the wastewater treatment process. The inclined filter plate 23 can not only prevent the waste from falling directly into the wastewater collection box 25 below, but also slide down the inclined surface under the action of gravity through its inclination angle. The residual liquid passes through the filter holes of the inclined filter plate 23 into the wastewater collection box 25 below, and the solid waste slides along the inclined surface to the discharge box 24. The wastewater collection box 25 is used to collect the wastewater that permeates from the inclined filter plate 23. The wastewater collection box 25 returns the filtered liquid to the top of the installation drawer 16 of the purification box 1 through the water pipe 15, and enters the activated carbon adsorption layer for secondary treatment.

[0025] See also Figure 3 As shown, the inner bottom wall of the purification box 1 is installed with a slope block 17, and the bottom of the outer wall of the purification box 1 is connected with a water outlet pipe 5, one end of the water outlet pipe 5 is located on the side close to the inclined end of the slope block 17, and the side wall of the purification box 1 is connected with a drug injection pipe located above the slope block 17, which can transport the treatment liquid to fully react with the wastewater purified by the activated carbon particles 22. In the specific implementation process, the slope block 17 is fixed to the inner bottom wall of the purification box 1, and its inclined structure guides the treated wastewater to flow in the direction of the water outlet pipe 5 to avoid sediment accumulation. The drug injection pipe can be connected to the dosing pump to add the treatment liquid such as coagulant, oxidant, etc. to the area above the slope block 17, which is fully mixed and reacted with the wastewater adsorbed by the activated carbon particles 22. The cooperation between the injection position of the liquid and the slope block 17 forms a vortex effect, which enhances the contact efficiency between the liquid and the wastewater.

[0026] Working principle: Step 1: Polyester dyeing wastewater is introduced into the transmission shell 3 through the lower hopper 4. After the motor 8 is started, its driving shaft drives the rotating column 7 and the spiral blade 10 to start rotating. Since the transmission shell 3 is tilted, the wastewater and the solid mixture therein form axial movement under the push of the spiral blade 10. The circular hole 11 opened on the spiral blade 10 allows liquid and fine particles to seep out, while the larger solid residue is continued to be pushed to the higher end of the transmission shell 3 by the spiral blade 10. During the transmission process, the curved filter plate 14 further intercepts the residual suspended matter to ensure that the solid impurities in the wastewater are effectively separated. The separated liquid part flows into the purification box 1 through the wastewater channel 12, and the solid waste is discharged into the dry waste box 2 through the waste channel 13.

[0027] Step 2: In the purification box 1, the wastewater first encounters the activated carbon particles 22 in the installation drawer 16. The activated carbon particles 22 have a strong adsorption capacity and can adsorb dye molecules and organic pollutants in the wastewater. The mesh plate 21 is connected to the installation drawer 16 through a convenient disassembly mechanism. The convenient disassembly mechanism allows the user to easily take out and replace the activated carbon particles 22, as well as clean the mesh plate 21. When it is necessary to replace the activated carbon particles 22 or clean the mesh plate 21, the user can drive the two-way screw rod 26 to rotate by rotating the knob 20. The rotation of the two-way screw rod 26 will drive the two threaded blocks 27 to move toward or away from each other along the slide groove, thereby pushing the abutment bar 30 to slide horizontally into or out of the abutment groove on both sides of the mesh plate 21. The user can easily install or remove the mesh plate 21.

[0028] Step three: the wastewater treated by adsorption by the activated carbon particles 22 will continue to flow in the purification box 1, and treatment chemicals such as coagulants, oxidants, etc. may be added through the injection tube. These chemicals are fully mixed and reacted with the wastewater to further remove pollutants in the wastewater. Finally, the treated wastewater flows to the outlet pipe 5 under the guidance of the inclined block 17. The inclined structure of the inclined block 17 not only helps the flow of wastewater, but also prevents sediment from accumulating in the purification box 1. The wastewater is discharged from the device through the outlet pipe 5, completing the entire treatment process. In the dry waste box 2, the inclined filter plate 23 is used to separate and collect dry waste generated during the wastewater treatment process. The solid waste slides along the inclined surface of the inclined filter plate 23 under the action of gravity to the discharge box 24, and is finally discharged through the through groove on the bottom wall of the discharge box 24.

[0029] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-efficiency polyester dyeing wastewater treatment device, comprising a purification box (1) and a dry waste box (2), characterized in that: The purification box (1) and the dry waste box (2) are provided with a solid-liquid separation mechanism, which comprises a transmission shell (3) installed obliquely above the purification box (1) and the dry waste box (2), a lower hopper (4) is connected to the upper side of the outer arc wall of the transmission shell (3), a motor (8) is fixedly installed on the outer side wall of the transmission shell (3), a driving shaft of the motor (8) is connected to a rotating column (7) rotatably connected to the inner side wall of the transmission shell (3), a spiral blade (10) is installed on the outer arc wall of the rotating column (7), and a plurality of circular holes (11) are opened on the spiral blade (10), a waste water channel (12) and a waste material channel (13) are connected to the bottom wall of the transmission shell (3), and the waste water channel (12) and the waste material channel (13) are respectively connected to the purification box (1) and the dry waste box (2), and a curved filter plate (14) is installed at the connection between the transmission shell (3) and the waste water channel (12).

2. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 1, characterized in that: The purification box (1) is provided with a mounting drawer (16), and mesh plates (21) are installed on the upper and lower surfaces of the mounting drawer (16). A plurality of activated carbon particles (22) are placed in the mounting drawer (16). The mounting drawer (16) is provided with a convenient disassembly mechanism, and the convenient disassembly mechanism includes a fixing block (18) located outside the purification box (1) and fixedly connected to the mounting drawer (16), a slide groove is provided in the fixing block (18), a threaded block (27) and a bidirectional screw rod (26) are provided in the slide groove, two threaded blocks (27) are provided and are threadedly connected to both ends of the bidirectional screw rod (26), a slide bar (28) is fixedly installed on the threaded block (27), and an abutment bar (30) is installed on the side of the slide bar (28) close to the mesh plate (21), and abutment grooves matching the abutment bar (30) are provided on both sides of the mesh plate (21).

3. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 2, characterized in that: The fixed block (18) and the mounting drawer (16) are both provided with movable grooves (29) on opposite sides thereof, and the movable grooves (29) can accommodate the horizontal sliding of the sliding strip (28) and the abutting strip (30).

4. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 3, characterized in that: The bidirectional screw rod (26) is rotatably connected to the inner wall of the fixed block (18), the outer wall of the fixed block (18) is equipped with a knob (20), the knob (20) is fixedly connected to one end of the bidirectional screw rod (26), and a handle (19) is installed on the side where the mounting drawer (16) and the fixed block (18) are connected.

5. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 4, characterized in that: Visualization windows (6) are installed at the upper and lower sections of the front of the purification box (1), and brackets (9) are installed at both ends of the bottom of the transmission shell (3), and the brackets (9) are respectively connected to the upper surfaces of the purification box (1) and the dry waste box (2) by bolts.

6. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 5, characterized in that: The side wall of the purification box (1) is provided with a square groove matching the longitudinal section of the installation drawer (16); the installation drawer (16) is slidably connected to the inner side wall of the purification box (1); and a sealing ring is sleeved on one side of the installation drawer (16) close to the square groove.

7. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 6, characterized in that: An inclined filter plate (23) is installed in the dry waste box (2), a wastewater collection box (25) is installed below the inclined filter plate (23), and the wastewater collection box (25) is connected to a water pipe (15) that runs through the purification box (1), and the other end of the water pipe (15) is located above the installation drawer (16).

8. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 7, characterized in that: The inclined filter plate (23) is arranged at a 45-degree inclination downwardly toward a side away from the purification box (1), and the outer side wall of the dry waste box (2) is connected to a discharge box (24).

9. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 8, characterized in that: The inner bottom wall of the discharge box (24) is inclined toward the inclined end of the inclined filter plate (23) at an angle of 45 degrees, and a through groove is formed on the bottom wall of the discharge box (24).

10. A high-efficiency polyester dyeing wastewater treatment device as claimed in claim 9, characterized in that: The inner bottom wall of the purification box (1) is installed with an inclined surface block (17), and the bottom of the outer side wall of the purification box (1) is connected with a water outlet pipe (5), and one end of the water outlet pipe (5) is located on a side close to the inclined end of the inclined surface block (17).

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