Sewage treatment equipment and sewage treatment method for full-degradable tableware production

Abstract

The invention discloses sewage treatment equipment and a sewage treatment method for full-degradable tableware production, and relates to the technical field of sewage treatment. The sewage treatment equipment comprises a bottom plate, the top of the bottom plate is fixedly connected with an L-shaped support, the top of the support is fixedly connected with a treatment tank with an opening in the bottom, the top of the treatment tank is fixedly connected with a water inlet valve, the side wall of the treatment tank is fixedly connected with a drain valve, an inlet of the drain valve is fixedly connected with a filter screen, and the filter screen is fixedly connected with a water outlet of the filter screen. And a movable disc is connected into the treatment tank through a lifting mechanism. According to the sewage treatment equipment and the sewage treatment method for full-degradable tableware production, the adding amount of a flocculating agent can be conveniently and automatically adjusted according to the sewage treatment amount, the waste of the flocculating agent is avoided while the sewage treatment effect is guaranteed, solid-liquid separation is facilitated after sewage treatment, in addition, precipitation can be subjected to extrusion operation, and the sewage treatment efficiency is improved. And water residues can be reduced, so that the solid-liquid separation efficiency and effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to sewage treatment equipment and a sewage treatment method for the production of fully degradable tableware. Background Art

[0002] The production of fully degradable tableware will produce sewage. Before discharge, it needs to be treated by sewage treatment equipment. During treatment, flocculants need to be added to the sewage for precipitation. Flocculants play an important role in wastewater treatment. They can be used to reduce the turbidity, saturation and other sensory indicators of source water, remove a variety of polymer organic compounds, some metal cadmium and radioactive elements, etc. Flocculants can quickly and effectively flocculate particles and colloids in the water to produce flocs. After adding the flocculant, you need to wait for a while for the wastewater to react and precipitate, and form a supernatant above the precipitate.

[0003] However, when using existing sewage treatment equipment and sewage treatment methods for the production of fully degradable tableware, it is not convenient to adjust the amount of flocculant added according to the amount of sewage treatment. If the amount added is too small, it will affect the effect of sewage treatment. If an excessive amount is added, it will cause a waste of flocculant. In addition, after the precipitation is completed, it is not convenient to separate the solid and liquid. At the same time, more water will remain in the precipitate, affecting the efficiency and effect of the solid-liquid separation. Summary of the invention

[0004] The object of the present invention is to provide a sewage treatment device and a sewage treatment method for the production of fully degradable tableware to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sewage treatment equipment, comprising a base plate, the top of the base plate is fixedly connected with an L-shaped bracket, and the top of the bracket is fixedly connected with a treatment tank with a bottom opening, the top of the treatment tank is fixedly connected with a water inlet valve, and the side wall of the treatment tank is fixedly connected with a drain valve, the inlet of the drain valve is fixedly connected with a filter, and a movable disk is connected to the treatment tank through a lifting mechanism, the side wall of the treatment tank is connected with a scraper through a first moving mechanism, and the side wall of the bracket is fixedly connected with a collecting trough, and the side wall of the treatment tank is provided with a dosing mechanism for adding flocculant into sewage.

[0006] Preferably, the lifting mechanism includes an L-shaped frame fixedly connected to the bottom of the processing tank, and the top of the L-shaped frame is fixedly connected to a first set of rods, the side wall of the first set of rods is sleeved with a first sleeve, and the upper end of the first sleeve is fixed to the bottom of the movable plate, the bottom of the movable plate is fixedly connected to a first threaded tube, and the first threaded tube is threadedly connected to a first threaded rod, the lower end of the first threaded rod is rotatably connected to the top of the L-shaped frame, the bottom of the L-shaped frame is fixedly connected to a first motor, and the output end of the first motor is fixed to the lower end of the first threaded rod.

[0007] Preferably, the first moving mechanism includes an L-shaped plate fixedly connected to the side wall of the processing tank, and the side wall of the L-shaped plate is fixedly connected to a second rod, the side wall of the second rod is sleeved with a second sleeve, and the other end of the second sleeve is fixed to the side wall of the processing tank, the side wall of the L-shaped plate is rotatably connected to a second threaded rod, and the side wall of the second threaded rod is threadedly connected to a second threaded tube, the other end of the second threaded tube is fixed to the side wall of the processing tank, the side wall of the L-shaped plate is fixedly connected to a second motor, and the output end of the second motor is fixed to one end of the second threaded rod.

[0008] Preferably, the dosing mechanism includes a connecting frame fixedly connected to the side wall of the processing tank, and the bottom of the connecting frame is fixedly connected to the medicine storage tank, the side wall of the medicine storage tank is fixedly connected to the dosing valve, and the side wall of the processing tank is fixedly connected to the dosing tube, a first one-way valve is arranged in the dosing tube, and the other end of the dosing tube is fixedly connected to the fixed cylinder, a medicine supply tube is fixedly connected between the fixed cylinder and the medicine storage tank, and a second one-way valve is arranged in the medicine supply tube, the side wall of the processing tank is connected to a moving block through a second moving mechanism, and the side wall of the moving block is connected to a piston through a connecting mechanism, the piston slides in the fixed cylinder, and the end of the piston is connected to a step block through a first reset mechanism, and the movement of the step block is pushed by a pushing mechanism.

[0009] Preferably, the connection mechanism comprises two symmetrically arranged first T-shaped guide rods fixedly connected to the ends of the piston, the side walls of the first T-shaped guide rods are sleeved with sliders, and the sliders are fixed to the side walls of the moving block.

[0010] Preferably, the second moving mechanism includes a third sleeve fixedly connected to the side wall of the processing tank, and a third rod is inserted in the third sleeve, the other end of the third rod is fixedly connected to a moving plate, and the moving plate is fixed to the side wall of the slider, the side wall of the moving plate is rotatably connected to a third threaded rod, and the side wall of the third threaded rod is threadedly connected to a third threaded tube, the other end of the third threaded tube is fixed to the side wall of the processing tank, and the end of the third threaded rod is fixedly connected to a rocker.

[0011] Preferably, the first reset mechanism includes a first connecting block fixedly connected to the end of the piston, and the side wall of the first connecting block is penetrated by two symmetrically arranged second T-shaped guide rods, the end of the second T-shaped guide rod is fixedly connected to the second connecting block, the second connecting block is fixed to the side wall of the step block, and the side wall of each second T-shaped guide rod is sleeved with a first spring.

[0012] Preferably, the pushing mechanism includes an L-shaped tube fixedly inserted in the side wall of the processing tank, and a moving rod is inserted in the L-shaped tube, the moving rod is connected to the side wall of the L-shaped tube through a second reset mechanism, and the lower end of the moving rod is fixedly connected to a pushing block, the bottom of the pushing block is provided with an inclined surface, the top of the step block is fixedly connected to the pushing rod, and the upper end of the pushing rod can slide on the inclined surface.

[0013] Preferably, the second reset mechanism includes two symmetrically arranged fixing rods fixedly connected to the top of the pushing block, and the upper end of each fixing rod is fixedly connected to a third T-shaped guide rod, the side wall of the third T-shaped guide rod is sleeved with a third connecting block, the third connecting block is fixed to the side wall of the L-shaped tube, and the side wall of each third T-shaped guide rod is sleeved with a second spring.

[0014] A method for treating wastewater from the production of fully degradable tableware, using the wastewater treatment equipment described above, comprises the following steps:

[0015] S1: When sewage treatment is being carried out, the water inlet valve is opened, and sewage is put into the treatment tank. Under the action of water pressure, the moving rod and the pushing block are pushed downward. At the same time, the second spring is compressed, so that the upper end of the pushing rod is against the inclined surface, thereby pushing the step block to move in the direction close to the first connecting block. The first spring is compressed, and when the amount of sewage in the treatment tank is more, the extrusion force of the moving rod is greater, so that the downward movement stroke of the pushing block is greater, thereby making the movement stroke of the step block larger, and then the distance between the moving block and the step block is closer;

[0016] S2: Then, the rocking wheel is rotated, and the rotation of the rocking wheel drives the rotation of the third threaded rod, thereby driving the moving plate to move in the direction close to the treatment tank. At the same time, the moving block is driven to move by the slider. When the moving block abuts against the step block, the flocculant temporarily stored in the fixed cylinder can be squeezed. At the same time, the first one-way valve is opened and the second one-way valve is closed. At this time, the flocculant temporarily stored in the fixed cylinder is squeezed into the treatment tank through the dosing pipe for reaction. Moreover, the more sewage in the treatment tank, the greater the stroke of the piston, so that the amount of flocculant added is greater;

[0017] S3: After the addition is completed, the moving block is moved and reset in the direction away from the fixed cylinder by the second moving mechanism, and the piston is driven to move and reset by the connecting mechanism, so that negative pressure is generated in the fixed cylinder. At the same time, the first one-way valve is closed and the second one-way valve is opened. At this time, the flocculant in the medicine storage tank enters the fixed cylinder through the medicine supply pipe for replenishment, and so on. It is convenient to automatically adjust the amount of flocculant added according to the sewage treatment volume, thereby ensuring the sewage treatment effect and avoiding the waste of flocculant;

[0018] S4: After the sedimentation is completed, the water inlet valve is closed and the drain valve is opened. Then, the first motor is started. The rotation of the first motor drives the rotation of the first threaded rod, so that the first threaded tube and the first sleeve tube move upward, and the movable plate moves upward, so that the treated water in the treatment tank can be squeezed and discharged through the drain valve. When the sedimentation abuts against the top of the treatment tank, the sedimentation can be squeezed under the action of the movable plate, and the squeezed water is also discharged through the drain valve.

[0019] S5: After the extrusion is completed, the movable plate is moved downward by the lifting mechanism, and the top of the movable plate is flush with the bottom of the base plate, and then the second motor is started. The rotation of the second motor drives the second sleeve and the second threaded tube to move, and drives the scraper to move away from the second motor, so that the sediment after extrusion on the top of the movable plate can be scraped and cleaned, and pushed into the collection tank for collection, and so on. After the sewage is treated, it is convenient to separate the solid and liquid, and the sediment can be squeezed to reduce the residual water, thereby improving the efficiency and effect of solid-liquid separation.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The sewage treatment equipment and the sewage treatment method for producing fully degradable tableware are provided with a dosing mechanism, etc., and when sewage treatment is carried out, the water inlet valve is opened to put sewage into the treatment tank, and the moving rod and the pushing block are pushed downward under the action of water pressure, and at the same time, the second spring is compressed so that the upper end of the pushing rod is against the inclined surface, thereby pushing the step block to move in the direction close to the first connecting block. The first spring is compressed, and when the amount of sewage in the treatment tank is more, the extrusion force of the moving rod is greater, so that the downward movement stroke of the pushing block is greater, thereby making the movement stroke of the step block greater, and then making the distance between the moving block and the step block closer, and then, the rocking wheel is rotated, and the rotation of the rocking wheel drives the rotation of the third threaded rod. The first one-way valve is opened and the second one-way valve is closed. At this time, the flocculant temporarily stored in the fixed cylinder is squeezed into the treatment tank through the dosing pipe for reaction. Moreover, the more sewage in the treatment tank, the greater the stroke of the piston, so that the greater the amount of flocculant added. After the addition is completed, the second moving mechanism is used to move the moving block to reset in the direction away from the fixed cylinder, and the connecting mechanism is used to drive the piston to move and reset, so that negative pressure is generated in the fixed cylinder. At the same time, the first one-way valve is opened and the second one-way valve is closed. The first check valve is closed and the second check valve is opened. At this time, the flocculant in the medicine storage tank enters the fixed cylinder through the medicine supply pipe for replenishment, and this reciprocating process is convenient for automatically adjusting the amount of flocculant added according to the sewage treatment volume, ensuring the sewage treatment effect while avoiding the waste of flocculant. By setting a lifting mechanism and a first moving mechanism, after the sedimentation is completed, the water inlet valve is closed and the drain valve is opened. Then, the first motor is started. The rotation of the first motor drives the rotation of the first threaded rod, so that the first threaded pipe and the first sleeve pipe move upward, and drive the moving disk to move upward, so that the treated water in the treatment tank can be squeezed and discharged and collected through the drain valve at the same time. In addition, the sedimentation and the top of the treatment tank are connected. When the two parts of the base plate are against each other, the sediment can be squeezed under the action of the moving disc, and the squeezed water is also discharged through the drain valve. After the squeezing is completed, the moving disc is moved downward by the lifting mechanism, and the top of the moving disc is flush with the bottom of the base plate, and then the second motor is started. The rotation of the second motor drives the second sleeve and the second threaded tube to move, and drives the scraper to move away from the second motor, so that the sediment squeezed on the top of the moving disc can be scraped and cleaned, and pushed into the collecting tank for collection. This reciprocating process is convenient for solid-liquid separation after sewage treatment, and the sediment can be squeezed to reduce the residual water, thereby improving the efficiency and effect of solid-liquid separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure from another perspective of the present invention;

[0024] Figure 3 It is a partial cross-sectional structural schematic diagram of the processing tank in the present invention;

[0025] Figure 4 It is a schematic diagram of the position of the first moving mechanism in the present invention;

[0026] Figure 5 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 6 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0028] Figure 7 for Figure 4 Schematic diagram of the enlarged structure at C in the middle;

[0029] Figure 8 for Figure 5 Schematic diagram of the enlarged structure at D in the middle.

[0030] In the figure: 1, bottom plate; 2, lifting mechanism; 201, L-shaped frame; 202, first sleeve; 203, first set of rods; 204, first threaded rod; 205, first motor; 206, first threaded tube; 3, first moving mechanism; 301, L-shaped plate; 302, second set of rods; 303, second sleeve; 304, second threaded tube; 305, second threaded rod; 306, second motor; 4, dosing mechanism; 401, connecting frame; 402, medicine storage tank; 403, dosing valve; 404, dosing tube; 405, fixed cylinder; 406, medicine supply tube; 407, piston; 408, moving block; 409, step block; 5, connecting mechanism; 501, first T-shaped guide rod; 502, slider; 6, second moving mechanism; 6 01. third sleeve; 602. third sleeve rod; 603. third threaded tube; 604. third threaded rod; 605. rocker; 606. moving plate; 7. first reset mechanism; 701. first connecting block; 702. second T-shaped guide rod; 703. second connecting block; 704. first spring; 8. pushing mechanism; 801. L-shaped tube; 802. moving rod; 803. pushing block; 804. inclined plane; 805. pushing rod; 9. second reset mechanism; 901. fixed rod; 902. third T-shaped guide rod; 903. second spring; 904. third connecting block; 10. bracket; 11. treatment tank; 12. water inlet valve; 13. drain valve; 14. filter screen; 15. collecting tank; 16. moving plate; 17. scraper. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-Figure 8 The present invention provides a technical solution: a sewage treatment device, comprising a bottom plate 1, a bracket 10 arranged in an L shape is fixedly connected to the top of the bottom plate 1, and a treatment tank 11 with a bottom opening is fixedly connected to the top of the bracket 10, a water inlet valve 12 is fixedly connected to the top of the treatment tank 11, and a drain valve 13 is fixedly connected to the side wall of the treatment tank 11, a filter screen 14 is fixedly connected to the inlet of the drain valve 13, and a movable disk 16 is connected to the treatment tank 11 through a lifting mechanism 2, a scraper 17 is connected to the side wall of the treatment tank 11 through a first moving mechanism 3, and a collecting tank 15 is fixedly connected to the side wall of the bracket 10, and a dosing mechanism 4 for adding flocculant into sewage is provided on the side wall of the treatment tank 11, so that the amount of flocculant added can be automatically adjusted according to the sewage treatment amount, so as to ensure the sewage treatment effect and avoid the waste of flocculant, and it is convenient to carry out solid-liquid separation after the sewage treatment, and the precipitation can be squeezed to reduce the residual water, thereby improving the efficiency and effect of solid-liquid separation.

[0033] See also Figure 2 The lifting mechanism 2 includes an L-shaped frame 201 fixedly connected to the bottom of the processing tank 11, and a first sleeve rod 203 is fixedly connected to the top of the L-shaped frame 201, and a first sleeve tube 202 is sleeved on the side wall of the first sleeve rod 203, and the upper end of the first sleeve tube 202 is fixed to the bottom of the movable plate 16, and a first threaded tube 206 is fixedly connected to the bottom of the movable plate 16, and the first threaded tube 206 is internally threadedly connected to the first threaded rod 204, and the lower end of the first threaded rod 204 is rotatably connected to the top of the L-shaped frame 201, and a first motor 205 is fixedly connected to the bottom of the L-shaped frame 201, and the output end of the first motor 205 is fixed to the lower end of the first threaded rod 204, and the first motor 205 is started. The rotation of the first motor 205 drives the rotation of the first threaded rod 204, so that the first threaded tube 206 and the first sleeve tube 202 are lifted and moved, and the movable plate 16 is driven to lift and move.

[0034] See also Figure 3 and Figure 7The first moving mechanism 3 includes an L-shaped plate 301 fixedly connected to the side wall of the processing tank 11, and the side wall of the L-shaped plate 301 is fixedly connected with a second sleeve rod 302, the side wall of the second sleeve rod 302 is sleeved with a second sleeve tube 303, and the other end of the second sleeve tube 303 is fixed to the side wall of the processing tank 11, the side wall of the L-shaped plate 301 is rotatably connected with a second threaded rod 305, and the side wall of the second threaded rod 305 is threadedly connected with a second threaded tube 304, the other end of the second threaded tube 304 is fixed to the side wall of the processing tank 11, the side wall of the L-shaped plate 301 is fixedly connected with a second motor 306, and the output end of the second motor 306 is fixed to one end of the second threaded rod 305, the second motor 306 is started, and the rotation of the second motor 306 drives the second sleeve tube 303 and the second threaded tube 304 to move, and drives the scraper 17 to move.

[0035] See also Figure 5 , Figure 6 and Figure 8 The dosing mechanism 4 includes a connecting frame 401 fixedly connected to the side wall of the processing tank 11, and the bottom of the connecting frame 401 is fixedly connected to a medicine storage tank 402, the side wall of the medicine storage tank 402 is fixedly connected to a dosing valve 403, and the side wall of the processing tank 11 is fixedly connected to a dosing pipe 404, a first one-way valve is arranged in the dosing pipe 404, the conduction direction of the first one-way valve is from a fixed cylinder 405 to the processing tank 11, and the other end of the dosing pipe 404 is fixedly connected to a fixed cylinder 405, a medicine supply pipe 406 is fixedly connected between the fixed cylinder 405 and the medicine storage tank 402, and a second one-way valve is arranged in the medicine supply pipe 406, the conduction direction of the second one-way valve is from the medicine storage tank 402 to the fixed cylinder 405, and the side wall of the processing tank 11 A moving block 408 is connected via the second moving mechanism 6, and a side wall of the moving block 408 is connected to a piston 407 via a connecting mechanism 5. The piston 407 slides in the fixed cylinder 405, and an end of the piston 407 is connected to a step block 409 via a first reset mechanism 7. The movement of the step block 409 is driven by a pushing mechanism 8. When flocculant needs to be added, the moving block 408 is moved by the second moving mechanism 6, and the piston 407 is moved by the connecting mechanism 5, and the flocculant temporarily stored in 405 is squeezed. At the same time, the first one-way valve is opened and the second one-way valve is closed. At this time, the flocculant temporarily stored in the fixed cylinder 405 is squeezed into the treatment tank 11 through the dosing tube 404 for reaction.

[0036] See also Figure 8 The connecting mechanism 5 includes two symmetrically arranged first T-shaped guide rods 501 fixedly connected to the end of the piston 407, and the side wall of the first T-shaped guide rod 501 is sleeved with a slider 502, and the slider 502 is fixed to the side wall of the moving block 408. When the moving block 408 moves to a direction away from the fixed cylinder 405 and resets, the piston 407 is driven to move synchronously through the first T-shaped guide rod 501.

[0037] See also Figure 5 and Figure 8 The second moving mechanism 6 includes a third sleeve 601 fixedly connected to the side wall of the processing tank 11, and a third sleeve rod 602 is inserted in the third sleeve 601, the other end of the third sleeve rod 602 is fixedly connected to a moving plate 606, and the moving plate 606 is fixed to the side wall of the slider 502, the side wall of the moving plate 606 is rotatably connected to a third threaded rod 604, and the side wall of the third threaded rod 604 is threadedly connected to a third threaded tube 603, the other end of the third threaded tube 603 is fixed to the side wall of the processing tank 11, and the end of the third threaded rod 604 is fixedly connected to a rocking wheel 605, the rocking wheel 605 is rotated, and the rotation of the rocking wheel 605 drives the rotation of the third threaded rod 604, thereby driving the moving plate 606 to move in a direction close to the processing tank 11, and at the same time, the moving block 408 is driven to move through the slider 502, and when the moving block 408 is against the step block 409, it can push the piston 407 to move and squeeze the flocculant temporarily stored in 405.

[0038] See also Figure 8 The first reset mechanism 7 includes a first connecting block 701 fixedly connected to the end of the piston 407, and the side wall of the first connecting block 701 is penetrated by two symmetrically arranged second T-shaped guide rods 702, the end of the second T-shaped guide rod 702 is fixedly connected to the second connecting block 703, the second connecting block 703 is fixed to the side wall of the step block 409, and the side wall of each second T-shaped guide rod 702 is sleeved with a first spring 704, which plays a guiding and resetting role for the movement of the step block 409.

[0039] See also Figure 5 and Figure 8 The pushing mechanism 8 includes an L-shaped tube 801 fixedly inserted in the side wall of the processing tank 11, and a moving rod 802 is inserted in the L-shaped tube 801. The moving rod 802 is connected to the side wall of the L-shaped tube 801 through the second reset mechanism 9, and the lower end of the moving rod 802 is fixedly connected to a pushing block 803, and the bottom of the pushing block 803 is provided with an inclined surface 804. The top of the step block 409 is fixedly connected to a pushing rod 805, and the upper end of the pushing rod 805 can slide on the inclined surface 804. Under the action of water pressure, the moving rod 802 and the pushing block 803 are pushed downward. At the same time, the second spring 903 is compressed, so that the upper end of the push rod 805 is against the inclined surface 804, thereby pushing the step block 409 to move toward the first connecting block 701. The first spring 704 is compressed, and the more sewage there is in the treatment tank 11, the greater the extrusion force of the moving rod 802, so that the push block 803 moves downwardly for a greater distance, thereby making the step block 409 move for a greater distance, and then the moving block 408 is closer to the step block 409, and the piston 407 is pushed to move by the moving block 408 for a greater distance.

[0040] See also Figure 8 The second reset mechanism 9 includes two symmetrically arranged fixed rods 901 fixedly connected to the top of the pushing block 803, and the upper end of each fixed rod 901 is fixedly connected to a third T-shaped guide rod 902, and the side wall of the third T-shaped guide rod 902 is sleeved with a third connecting block 904, the third connecting block 904 is fixed to the side wall of the L-shaped tube 801, and the side wall of each third T-shaped guide rod 902 is sleeved with a second spring 903, which plays a guiding and resetting role for the movement of the pushing block 803.

[0041] A method for treating wastewater from the production of fully degradable tableware, using the above-mentioned wastewater treatment equipment, comprises the following steps:

[0042] S1: When sewage treatment is being performed, the water inlet valve 12 is opened, and sewage is put into the treatment tank 11. Under the action of water pressure, the moving rod 802 and the pushing block 803 are pushed downward. At the same time, the second spring 903 is compressed, so that the upper end of the pushing rod 805 abuts against the inclined surface 804, thereby pushing the step block 409 to move toward the first connecting block 701. The first spring 704 is compressed, and when the amount of sewage in the treatment tank 11 is more, the squeezing force of the moving rod 802 is greater, so that the downward movement of the pushing block 803 is greater, thereby making the movement stroke of the step block 409 greater, and then the distance between the moving block 408 and the step block 409 is closer;

[0043] S2: Next, the rocking wheel 605 is rotated. The rotation of the rocking wheel 605 drives the rotation of the third threaded rod 604, thereby driving the moving plate 606 to move toward the treatment tank 11. At the same time, the moving block 408 is driven to move by the slider 502. When the moving block 408 abuts against the step block 409, the flocculant temporarily stored in the fixed cylinder 405 can be squeezed. At the same time, the first one-way valve is opened and the second one-way valve is closed. At this time, the flocculant temporarily stored in the fixed cylinder 405 is squeezed into the treatment tank 11 through the dosing tube 404 for reaction. Moreover, the more sewage in the treatment tank 11, the greater the stroke of the piston 407, so that the amount of flocculant added is greater;

[0044] S3: After the addition is completed, the second moving mechanism 6 causes the moving block 408 to move and reset in a direction away from the fixed cylinder 405, and the connecting mechanism 5 drives the piston 407 to move and reset, so that negative pressure is generated in the fixed cylinder 405. At the same time, the first one-way valve is closed and the second one-way valve is opened. At this time, the flocculant in the medicine storage tank 402 enters the fixed cylinder 405 through the medicine supply pipe 406 for replenishment, and so on. It is convenient to automatically adjust the amount of flocculant added according to the sewage treatment amount, thereby ensuring the sewage treatment effect and avoiding the waste of flocculant.

[0045] S4: After the sedimentation is completed, the water inlet valve 12 is closed and the drain valve 13 is opened. Then, the first motor 205 is started. The rotation of the first motor 205 drives the rotation of the first threaded rod 204, so that the first threaded tube 206 and the first sleeve 202 move upward, and drive the movable plate 16 to move upward, so that the treated water in the treatment tank 11 can be squeezed and discharged through the drain valve 13. When the sedimentation abuts against the top of the treatment tank 11, the sedimentation can be squeezed under the action of the movable plate 16, and the squeezed water is also discharged through the drain valve 13.

[0046] S5: After the extrusion is completed, the movable plate 16 is moved downward by the lifting mechanism 2, and the top of the movable plate 16 is flush with the bottom of the base plate 1, and then the second motor 306 is started. The rotation of the second motor 306 drives the second sleeve 303 and the second threaded tube 304 to move, and drives the scraper 17 to move away from the second motor 306, so that the sediment after extrusion on the top of the movable plate 16 can be scraped and cleaned, and pushed into the collecting tank 15 for collection, and so on. After the sewage is treated, it is convenient to separate the solid and liquid, and the sediment can be squeezed to reduce the residual water, thereby improving the efficiency and effect of solid-liquid separation.

Claims

1. A sewage treatment device, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to an L-shaped bracket (10), and the top of the bracket (10) is fixedly connected to a treatment tank (11) with a bottom opening, the top of the treatment tank (11) is fixedly connected to a water inlet valve (12), and the side wall of the treatment tank (11) is fixedly connected to a drain valve (13), the inlet of the drain valve (13) is fixedly connected to a filter screen (14), and the inside of the treatment tank (11) is connected to a moving disk (16) via a lifting mechanism (2), the side wall of the treatment tank (11) is connected to a scraper (17) via a first moving mechanism (3), and the side wall of the bracket (10) is fixedly connected to a collecting trough (15), and the side wall of the treatment tank (11) is provided with a dosing mechanism (4) for adding a flocculant into sewage.

2. A sewage treatment equipment according to claim 1, characterized in that: The lifting mechanism (2) comprises an L-shaped frame (201) fixedly connected to the bottom of the processing tank (11), and a first sleeve rod (203) is fixedly connected to the top of the L-shaped frame (201), a first sleeve tube (202) is sleeved on the side wall of the first sleeve rod (203), and the upper end of the first sleeve tube (202) is fixed to the bottom of the movable plate (16), a first threaded tube (206) is fixedly connected to the bottom of the movable plate (16), and the first threaded tube (206) is internally threadedly connected to the first threaded rod (204), the lower end of the first threaded rod (204) is rotatably connected to the top of the L-shaped frame (201), and a first motor (205) is fixedly connected to the bottom of the L-shaped frame (201), and the output end of the first motor (205) is fixed to the lower end of the first threaded rod (204).

3. A sewage treatment equipment according to claim 1, characterized in that: The first moving mechanism (3) comprises an L-shaped plate (301) fixedly connected to the side wall of the processing tank (11), and the side wall of the L-shaped plate (301) is fixedly connected to a second sleeve rod (302), the side wall of the second sleeve rod (302) is sleeved with a second sleeve tube (303), and the other end of the second sleeve tube (303) is fixed to the side wall of the processing tank (11), the side wall of the L-shaped plate (301) is rotatably connected to a second threaded rod (305), and the side wall of the second threaded rod (305) is threadedly connected to a second threaded tube (304), the other end of the second threaded tube (304) is fixed to the side wall of the processing tank (11), and the side wall of the L-shaped plate (301) is fixedly connected to a second motor (306), and the output end of the second motor (306) is fixed to one end of the second threaded rod (305).

4. A sewage treatment equipment according to claim 1, characterized in that: The drug dispensing mechanism (4) comprises a connecting frame (401) fixedly connected to the side wall of the processing tank (11), and the bottom of the connecting frame (401) is fixedly connected to a drug storage tank (402), the side wall of the drug storage tank (402) is fixedly connected to a drug adding valve (403), and the side wall of the processing tank (11) is fixedly connected to a drug dispensing pipe (404), a first non-return valve is arranged in the drug dispensing pipe (404), and the other end of the drug dispensing pipe (404) is fixedly connected to a fixed cylinder (405), and a fixed connection is formed between the fixed cylinder (405) and the drug storage tank (402). A drug supply pipe (406) is fixedly connected, and a second one-way valve is arranged in the drug supply pipe (406); the side wall of the treatment tank (11) is connected to a moving block (408) via a second moving mechanism (6), and the side wall of the moving block (408) is connected to a piston (407) via a connecting mechanism (5); the piston (407) slides in the fixed cylinder (405), and the end of the piston (407) is connected to a step block (409) via a first reset mechanism (7); the movement of the step block (409) is driven by a driving mechanism (8).

5. A sewage treatment equipment according to claim 4, characterized in that: The connection mechanism (5) comprises two symmetrically arranged first T-shaped guide rods (501) fixedly connected to the ends of the piston (407), a sliding block (502) is sleeved on the side wall of the first T-shaped guide rod (501), and the sliding block (502) is fixed to the side wall of the moving block (408).

6. A sewage treatment equipment according to claim 5, characterized in that: The second moving mechanism (6) comprises a third sleeve (601) fixedly connected to the side wall of the processing tank (11), and a third sleeve rod (602) is inserted into the third sleeve (601), the other end of the third sleeve rod (602) is fixedly connected to a moving plate (606), and the moving plate (606) is fixed to the side wall of the slider (502), the side wall of the moving plate (606) is rotatably connected to a third threaded rod (604), and the side wall of the third threaded rod (604) is threadedly connected to a third threaded tube (603), the other end of the third threaded tube (603) is fixed to the side wall of the processing tank (11), and the end of the third threaded rod (604) is fixedly connected to a rocker (605).

7. A sewage treatment equipment according to claim 4, characterized in that: The first reset mechanism (7) comprises a first connection block (701) fixedly connected to the end of the piston (407), and two symmetrically arranged second T-shaped guide rods (702) are arranged through the side wall of the first connection block (701), and the end of the second T-shaped guide rod (702) is fixedly connected to the second connection block (703), the second connection block (703) is fixed to the side wall of the step block (409), and the side wall of each second T-shaped guide rod (702) is sleeved with a first spring (704).

8. A sewage treatment equipment according to claim 4, characterized in that: The pushing mechanism (8) comprises an L-shaped tube (801) fixedly inserted into the side wall of the processing tank (11), and a moving rod (802) is inserted into the L-shaped tube (801), the moving rod (802) is connected to the side wall of the L-shaped tube (801) through a second reset mechanism (9), and the lower end of the moving rod (802) is fixedly connected to a pushing block (803), the bottom of the pushing block (803) is provided with an inclined surface (804), and the top of the step block (409) is fixedly connected to a pushing rod (805), and the upper end of the pushing rod (805) can slide on the inclined surface (804).

9. A sewage treatment equipment according to claim 8, characterized in that: The second reset mechanism (9) comprises two symmetrically arranged fixed rods (901) fixedly connected to the top of the push block (803), and the upper end of each fixed rod (901) is fixedly connected to a third T-shaped guide rod (902), the side wall of the third T-shaped guide rod (902) is sleeved with a third connecting block (904), the third connecting block (904) is fixed to the side wall of the L-shaped tube (801), and the side wall of each third T-shaped guide rod (902) is sleeved with a second spring (903).

10. A method for treating wastewater from the production of fully degradable tableware, using a wastewater treatment device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: When sewage treatment is being performed, the water inlet valve (12) is opened and sewage is put into the treatment tank (11). Under the action of water pressure, the moving rod (802) and the pushing block (803) are pushed downward. At the same time, the second spring (903) is compressed, so that the upper end of the pushing rod (805) is against the inclined surface (804), thereby pushing the step block (409) to move in a direction close to the first connecting block (701). The first spring (704) is compressed, and the more sewage there is in the treatment tank (11), the greater the squeezing force of the moving rod (802), so that the pushing block (803) moves downward for a greater distance, thereby making the step block (409) move for a greater distance, and further making the moving block (408) closer to the step block (409); S2: Then, the rocking wheel (605) is rotated. The rotation of the rocking wheel (605) drives the rotation of the third threaded rod (604), thereby driving the movable plate (606) to move in the direction close to the treatment tank (11). At the same time, the movable block (408) is driven to move by the slider (502). When the movable block (408) abuts against the step block (409), the flocculant temporarily stored in the fixed cylinder (405) can be squeezed. At the same time, the first one-way valve is opened and the second one-way valve is closed. At this time, the flocculant temporarily stored in the fixed cylinder (405) is squeezed into the treatment tank (11) through the dosing tube (404) for reaction. Moreover, the more sewage there is in the treatment tank (11), the greater the travel of the piston (407), so that a greater amount of flocculant is added. S3: After the addition is completed, the second moving mechanism (6) causes the moving block (408) to move and reset in a direction away from the fixed cylinder (405), and the connecting mechanism (5) drives the piston (407) to move and reset, so that negative pressure is generated in the fixed cylinder (405). At the same time, the first one-way valve is closed and the second one-way valve is opened. At this time, the flocculant in the medicine storage tank (402) enters the fixed cylinder (405) through the medicine supply pipe (406) for replenishment, and so on and so forth, so that the amount of flocculant added can be automatically adjusted according to the amount of sewage treatment, thereby ensuring the sewage treatment effect and avoiding the waste of flocculant; S4: After the sedimentation is completed, the water inlet valve (12) is closed and the drain valve (13) is opened. Then, the first motor (205) is started. The rotation of the first motor (205) drives the first threaded rod (204) to rotate, so that the first threaded tube (206) and the first sleeve (202) move upward, and drive the movable plate (16) to move upward, so that the treated water in the treatment tank (11) can be squeezed and discharged and collected through the drain valve (13). Moreover, when the sedimentation abuts against the top of the treatment tank (11), the sedimentation can be squeezed under the action of the movable plate (16), and the squeezed water is also discharged through the drain valve (13); S5: After the extrusion is completed, the movable plate (16) is moved downward by the lifting mechanism (2) so that the top of the movable plate (16) is flush with the bottom of the bottom plate (1), and then the second motor (306) is started. The rotation of the second motor (306) drives the second sleeve (303) and the second threaded tube (304) to move, and drives the scraper (17) to move away from the second motor (306), so that the sediment after extrusion on the top of the movable plate (16) can be scraped and cleaned, and pushed into the collection tank (15) for collection. This process is repeated, and after the sewage is treated, solid-liquid separation is facilitated. In addition, the sediment can be squeezed to reduce the residual water, thereby improving the efficiency and effect of solid-liquid separation.

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