Restaurant wastewater treatment equipment and treatment method thereof

Abstract

The invention provides restaurant wastewater treatment equipment and a treatment method thereof, and belongs to the technical field of restaurant wastewater. The restaurant wastewater treatment equipment comprises a box body, a primary treatment cavity and a secondary treatment cavity are formed in an inner cavity of the box body, an oil scraping mechanism is arranged in the box body, and the oil scraping mechanism comprises a partition plate, an oil scraping roller, a first rotating shaft and an oil floating plate. By arranging the oil scraping mechanism, a motor drives an oil scraping roller to rotate clockwise, grease floating on the surface of wastewater is scraped into an oil storage cavity, air can be injected into a hollow part of a second rotating shaft through an air pump, bubbles are attached to the surfaces of grease particles, the overall density is reduced, floating is accelerated, and the wastewater is synchronously mixed through a stirring rod; when a gear is meshed with a toothed plate, a first rotating shaft and a scraper blade are driven to rotate, and under the action of the scraper blade and the gravity of the grease, the grease falls onto the surface of an oil guide plate and is discharged out of the box body, so that the device is convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of catering wastewater, and in particular to a catering wastewater treatment device and a treatment method thereof. Background Art

[0002] Food wastewater, primarily generated by the catering industry, canteens, and kitchens, contains a variety of impurities, including grease, food residue, and detergents. Grease, particularly from deep-frying and cooking, is the most significant contaminant. The presence of grease causes oil to float on the wastewater surface, hindering oxygen exchange and affecting water quality. Grease can also adhere to pipes and equipment, causing blockages and equipment failures. Furthermore, grease can inhibit microbial activity in biological treatment systems. Therefore, grease removal and treatment have always been the greatest challenge in food wastewater treatment.

[0003] Existing catering wastewater treatment equipment generally removes oil through a scraper, which can only scrape off the grease on the surface of the wastewater, and the scraping efficiency is low. Summary of the Invention

[0004] In order to make up for the above deficiencies, the present invention provides a catering wastewater treatment equipment and a treatment method thereof that overcome the above technical problems or at least partially solve the above problems.

[0005] The present invention is achieved in that: The present invention provides a catering wastewater treatment device, comprising a box body, wherein the inner cavity of the box body is provided with a primary treatment chamber and a secondary treatment chamber, and the box body is provided with an oil scraping mechanism for preliminarily scraping off grease in the catering wastewater, and the oil scraping mechanism comprises: a partition plate installed between the primary processing chamber and the secondary processing chamber; An oil scraping roller, the oil scraping roller is rotatably mounted in the inner cavity of the box, and the inner cavity of the oil scraping roller is provided with a plurality of oil storage cavities; a first rotating shaft, the first rotating shaft being rotatably mounted in the oil storage chamber, and a scraper being fixedly mounted on a surface of the first rotating shaft for scraping grease in the oil storage chamber; An oil floating plate is slidably installed in the primary processing chamber and is used to push the floating oil into the oil storage chamber.

[0006] In a preferred embodiment, a water inlet pipe is installed on the side wall of the box body for introducing catering waste water, a waste discharge pipe is connected to the bottom of the primary treatment chamber, a drain pipe is connected to the side wall of the secondary treatment chamber, and a motor is fixedly installed on the side wall of the box body. The output end of the motor is fixedly connected to one end of the oil scraper roller for driving the oil scraper roller to rotate.

[0007] In a preferred solution, a gear is fixedly mounted on one end of the first rotating shaft, a toothed plate is fixedly mounted on the inner wall of the box body, the toothed plate is meshed with the gear, and an oil guide plate is fixedly mounted in the inner cavity of the box body for discharging grease.

[0008] In a preferred solution, a push rod is symmetrically fixedly installed on the bottom of the oil floating plate, a first bracket is fixedly installed on the inner wall of the box, the push rod is slidably connected to the first bracket, a push block is fixedly installed on the other end of the push rod, a first spring is sleeved on the surface of the push rod, one end of the first spring is fixedly connected to the first bracket, and the other end of the first spring is fixedly connected to the push block, which is used to drive the oil floating plate to move downward.

[0009] In a preferred embodiment, a second rotating shaft is rotatably installed in the inner cavity of the box body, an arc-shaped driving disk is symmetrically fixedly installed on the surface of the second rotating shaft, the push block is in contact with the surface of the driving disk, the oil scraper roller and one end of the second rotating shaft are both equipped with pulleys, a belt is connected between the two pulleys, and a stirring rod is symmetrically fixedly installed on the side wall of the second rotating shaft, the stirring rod and the second rotating shaft are both hollow, a spray hole is opened on the side wall of the stirring rod, and the spray hole is connected to the hollow part of the stirring rod, an air pump is fixedly installed on the side wall of the box body, and the air outlet end of the air pump is connected to the hollow part of the second rotating shaft by a rotary joint.

[0010] In a preferred embodiment, a catalytic mechanism is provided in the secondary treatment chamber for accelerating the precipitation of grease in the kitchen wastewater. The catalytic mechanism includes a third rotating shaft, a roller and a driving blade. The third rotating shaft is rotatably mounted in the inner cavity of the box body, a roller is fixedly mounted on the surface of the third rotating shaft, and a plurality of driving blades are fixedly mounted on the side wall of the roller.

[0011] In a preferred embodiment, the roller cavity is symmetrically provided with an auxiliary agent chamber, the auxiliary agent chamber is slidably mounted, the auxiliary agent chamber is fixedly mounted with a second spring, the other end of the second spring is fixedly connected to the first piston, the side wall of the first piston is fixedly mounted with a first connecting rod, the other end of the first connecting rod is fixedly mounted with a driving ball, the inner wall of the box is provided with a groove, the groove is fixedly mounted with a protrusion for driving the driving ball, the inner cavity of the roller is symmetrically provided with a liquid separation chamber, the side wall of the liquid separation chamber is provided with a plurality of injection holes, the third rotating shaft is hollow, the side wall of the box is provided with a solvent tank for storing the active agent, one end of the third rotating shaft is inserted into the solvent tank, and the hollow part of the third rotating shaft is connected to the solvent tank, the first one-way valve is symmetrically mounted at one end of the auxiliary agent chamber, one of the first one-way valves is connected to the liquid separation chamber, and the other first one-way valve is connected to the hollow part of the third rotating shaft, the inner cavity of the box is fixedly provided with a drain plate, and the surface of the drain plate is provided with several interference flow rods for re-mixing the wastewater and the active agent.

[0012] In a preferred solution, an oil suction mechanism is installed in the box body for further absorbing grease. The oil suction mechanism includes a water storage bin, a grille and a floating block. The water storage bin is installed at one end of the drainage board. A grille is installed between the water storage bin and the inner wall of the box body. A floating block is installed in the water storage bin. A second bracket is fixedly installed on the inner wall of the box body. A guide rod is fixedly installed on the surface of the floating block. The guide rod is slidably connected to the second bracket.

[0013] and a tube connecting the dischar e side of the pump with a plug in the forward end of the crank case, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end.

[0014] A method for treating restaurant wastewater, applicable to the above-mentioned restaurant wastewater treatment equipment, comprises the following steps: S1: Preliminary oil removal: The restaurant wastewater is introduced into the primary treatment chamber through the water inlet pipe. Under the action of the partition plate, the water level in the primary treatment chamber gradually rises until the bottom of the oil scraper roller is immersed in the wastewater. The motor drives the oil scraper roller to rotate clockwise, scraping the grease floating on the surface of the wastewater into the oil storage chamber. When the gear and the tooth plate are engaged, the first shaft and the scraper are driven to rotate. Under the action of the scraper and the gravity of the grease, the grease falls to the surface of the oil guide plate and is discharged from the box; S2: Catalysis; With the continuous injection of wastewater, the wastewater level in the primary treatment chamber continues to rise, impacting the driving blade, pushing the roller to rotate. Under the action of the second spring, the driving ball is driven to stick to the side wall of the groove. As the roller rotates, when the driving ball contacts the bump, it drives the first piston to move toward the inner cavity of the auxiliary agent chamber, injecting the active agent into the liquid separation chamber and then into the wastewater through the injection hole. The wastewater then falls to the surface of the drainage plate and is mixed again by the spoiler rod. S3: Secondary oil removal; wastewater flows into the water storage tank through the drain plate, and as the liquid level rises, the floating block is pushed upward, and the grease floats upward again and enters the oil collecting tank through the oil guide hole. When the arc-shaped drive plate rotates, the abutment block is driven by the slide groove and the slide rod to drive the second connecting rod to move back and forth, so that the grease in the oil collecting tank is sucked into the oil suction cylinder through the oil suction hole and cavity through the second piston, and then injected into the oil tank, thereby further removing the oil from the wastewater.

[0015] The present invention provides a restaurant wastewater treatment device and a treatment method thereof, the beneficial effects of which include: 1. By setting up an oil scraping mechanism, the motor drives the oil scraping roller to rotate clockwise, scraping the grease floating on the surface of the wastewater into the oil storage chamber, and the air pump can be used to inject air into the hollow part of the second rotating shaft, so that bubbles adhere to the surface of the grease particles, reduce the overall density, and accelerate the floating. The stirring rod is used to synchronously mix the wastewater to increase the contact area between the bubbles and the wastewater, accelerating the floating of the grease. When the gear is engaged with the tooth plate, the first rotating shaft and the scraper are driven to rotate. Under the action of the scraper and the gravity of the grease, the grease falls to the surface of the oil guide plate and is discharged from the box for easy use.

[0016] 2. By setting up a catalytic mechanism, as the wastewater is continuously injected, it impacts the driving blade and pushes the roller to rotate. Under the action of the second spring, the driving ball is driven to stick to the side wall of the groove. As the roller rotates, when the driving ball contacts the bump, it drives the first piston to move toward the inner cavity of the auxiliary agent chamber, injecting the active agent into the liquid separation chamber and into the wastewater through the injection hole to achieve batch injection. Then the wastewater falls to the surface of the drain plate and is mixed again by the spoiler rod. The oil-water separation process is accelerated, the oil-water interfacial tension is reduced, the oil droplets are helped to further aggregate and float, and the oil removal efficiency is improved.

[0017] 3. By setting up the oil suction mechanism, wastewater can flow into the water storage tank through the drain plate, and as the liquid level rises, the floating block is pushed up and finally discharged by the grille. The wastewater flowing into the water storage tank and the grease float upward again and enter the oil collection tank through the oil guide hole. When the arc-shaped drive disk rotates, the abutment block is driven by the slide groove and the slide rod to drive the second connecting rod to move back and forth left and right, so that the grease in the oil collection tank is sucked into the oil pump through the oil suction hole and cavity through the second piston, and injected into the oil tank, thereby further removing oil from the wastewater and improving the oil removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. Figure 1 is a front perspective view provided by an embodiment of the present invention; Figure 2 A side perspective view of an embodiment of the present invention is provided; Figure 3 A front view of an embodiment of the present invention is provided; Figure 4 A side cross-sectional view of an embodiment of the present invention is provided; Figure 5 A cross-sectional view of a primary processing chamber provided in accordance with an embodiment of the present invention; Figure 6 Provided for the embodiments of the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 A cross-sectional view of a box provided for an embodiment of the present invention; Figure 8 A cross-sectional view of a roller provided in an embodiment of the present invention; Figure 9 Provided for the embodiments of the present invention Figure 8 Enlarged view of point B in the middle; Figure 10 A cross-sectional view of a secondary processing chamber provided in accordance with an embodiment of the present invention; Figure 11 Provided for the embodiments of the present invention Figure 10 Enlarged view of point C in the middle; Figure 12 A cross-sectional view of a floating block provided in accordance with an embodiment of the present invention.

[0019] In the figure: 1. housing; 2. primary treatment chamber; 3. secondary treatment chamber; 4. water inlet pipe; 5. waste pipe; 6. oil scraper mechanism; 601. partition plate; 602. oil scraper roller; 603. motor; 604. oil storage chamber; 605. first rotating shaft; 606. scraper; 607. gear; 608. gear plate; 609. oil floating plate; 610. push rod; 611. first bracket; 612. push block; 613. first spring; 614. second rotating shaft; 615. drive plate; 616. stirring rod; 617. spray hole; 618. air pump; 619. rotary joint; 620. oil guide plate; 7. catalytic mechanism; 701. third rotating shaft; 702. roller; 703. drive blade; 704. additive chamber; 705. First piston; 706. Second spring; 707. First connecting rod; 708. Driving ball; 709. Groove; 710. Bump; 711. Liquid separation chamber; 712. Injection hole; 713. First one-way valve; 714. Drain plate; 715. Disturbing rod; 716. Solvent tank; 8. Oil suction mechanism; 801. Water storage tank; 802. Grille; 803. Floating block; 804. Second bracket; 805. Guide rod; 806. Oil collecting tank; 807. Oil guide hole; 808. Oil suction hole; 809. Cavity; 810. Pumping cylinder; 811. Second piston; 812. Second connecting rod; 813. Oil tank; 814. Second one-way valve; 815. Abutment block; 816. Slide groove; 817. Slide rod. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 making creative efforts shall fall within the scope of protection of the present invention.

[0021] Reference Figures 1-12 As shown, the present invention provides a technical solution: a catering wastewater treatment device, including a box body 1, the inner cavity of the box body 1 is provided with a primary treatment chamber 2 and a secondary treatment chamber 3, the side wall of the box body 1 is installed with a water inlet pipe 4 for introducing catering wastewater, the bottom of the primary treatment chamber 2 is connected with a waste pipe 5 for discharging impurities, the side wall of the secondary treatment chamber 3 is connected with a drain pipe 9 for discharging wastewater, an oil scraping mechanism 6 is provided in the box body 1 for preliminarily scraping off grease in the catering wastewater, the oil scraping mechanism 6 includes a partition plate 601, an oil scraping roller 602, a first rotating shaft 605 and an oil floating plate 609, the partition plate 601 is installed in the primary treatment chamber 2 and the secondary treatment chamber 3, the scraper roller 602 is rotatably installed in the inner cavity of the box body 1, and a motor 603 is fixedly installed on the side wall of the box body 1. The output end of the motor 603 is fixedly connected to one end of the scraper roller 602, which is used to drive the scraper roller 602 to rotate. A number of oil storage chambers 604 are opened in the inner cavity of the scraper roller 602, and the catering wastewater is introduced into the primary treatment chamber 2 through the water inlet pipe 4. Under the action of the partition plate 601, the water level in the primary treatment chamber 2 gradually rises until the bottom of the scraper roller 602 is submerged in the wastewater. The motor 603 drives the scraper roller 602 to rotate clockwise to scrape the grease floating on the surface of the wastewater into the oil storage chamber 604.

[0022] Reference Figure 1-Figure 7 As shown, in a preferred embodiment, the first rotating shaft 605 is rotatably installed in the oil storage chamber 604, and a scraper 606 is fixedly installed on the surface of the first rotating shaft 605 for scraping off the grease in the oil storage chamber 604. A gear 607 is fixedly installed at one end of the first rotating shaft 605, and a tooth plate 608 is fixedly installed on the inner wall of the box body 1. The tooth plate 608 is engaged with the gear 607. An oil guide plate 620 is fixedly installed in the inner cavity of the box body 1 for discharging grease. As the oil scraping roller 602 rotates, when the gear 607 is engaged with the tooth plate 608, the first rotating shaft 605 and the scraper 606 are driven to rotate. Under the action of the scraper 606 and the gravity of the grease, the grease falls onto the surface of the oil guide plate 620 and is discharged from the box body 1 for convenient use.

[0023] Reference Figure 1-Figure 7As shown, in a preferred embodiment, the oil floating plate 609 is slidably installed in the primary processing chamber 2, and is used to push the floating oil into the oil storage chamber 604. A push rod 610 is symmetrically fixedly installed on the bottom of the oil floating plate 609, and a first bracket 611 is fixedly installed on the inner wall of the box body 1. The push rod 610 is slidably connected to the first bracket 611, and a push block 612 is fixedly installed on the other end of the push rod 610. A first spring 613 is sleeved on the surface of the push rod 610, and one end of the first spring 613 is fixedly connected to the first bracket 611, and the other end of the first spring 613 is fixedly connected to the push block 612, which is used to drive the oil floating plate 609 to move downward.

[0024] Reference Figure 1-Figure 7 As shown, in a preferred embodiment, a second rotating shaft 614 is rotatably installed in the inner cavity of the box body 1, and an arc-shaped driving disk 615 is symmetrically fixedly installed on the surface of the second rotating shaft 614. The push block 612 is in contact with the surface of the driving disk 615. The oil scraping roller 602 and one end of the second rotating shaft 614 are both equipped with pulleys, and a belt is connected between the two pulleys. A stirring rod 616 is symmetrically fixedly installed on the side wall of the second rotating shaft 614. When the oil scraping roller 602 rotates, the pulley can synchronously drive the second rotating shaft 614 to rotate, drive the arc-shaped driving disk 615 to rotate synchronously, and with the cooperation of the first spring 613, drive the push block 612 to drive the oil floating plate 609 to move up and down, thereby removing the oil on the surface of the wastewater. The grease is pushed into the oil storage chamber 604 again to improve the oil scraping effect; the stirring rod 616 and the second rotating shaft 614 are both hollow, and a spray hole 617 is provided on the side wall of the stirring rod 616. The spray hole 617 is communicated with the hollow part of the stirring rod 616. An air pump 618 is fixedly installed on the side wall of the box body 1. The air outlet end of the air pump 618 is connected to the hollow part of the second rotating shaft 614 by a rotary joint 619. The hollow part of the second rotating shaft 614 can be injected with air through the air pump 618, and the air is sprayed into the wastewater through the spray hole 617, so that the bubbles adhere to the surface of the grease particles, reduce the overall density, accelerate the floating, and synchronously mix the wastewater through the stirring rod 616 to increase the contact area between the bubbles and the wastewater, thereby accelerating the floating of the grease.

[0025] In a preferred embodiment, when in use, the catering wastewater is introduced into the primary treatment chamber 2 through the water inlet pipe 4. Under the action of the partition plate 601, the water level in the primary treatment chamber 2 gradually rises until the bottom of the scraper roller 602 is immersed in the wastewater. The motor 603 drives the scraper roller 602 to rotate clockwise to scrape the grease floating on the surface of the wastewater into the oil storage chamber 604. The air pump 618 can be used to inject air into the hollow part of the second rotating shaft 614, and the air is sprayed into the wastewater through the nozzle 617, so that the air bubbles adhere to the surface of the grease particles, reduce the overall density, accelerate the floating, and through the stirring rod 616 The wastewater is mixed synchronously to increase the contact area between the bubbles and the wastewater, and accelerate the floating of the grease. When the gear 607 is engaged with the tooth plate 608, the first rotating shaft 605 and the scraper 606 are driven to rotate. Under the action of the scraper 606 and the gravity of the grease, the grease falls onto the surface of the oil guide plate 620 and is discharged from the box 1, which is convenient for use. When the oil scraper roller 602 rotates, it drives the arc-shaped drive disk 615 to rotate synchronously, and with the cooperation of the first spring 613, it drives the push block 612 to drive the oil floating plate 609 to move up and down, thereby pushing the grease on the surface of the wastewater into the oil storage chamber 604 again, thereby improving the oil scraping effect.

[0026] Reference Figures 1-11 As shown, in a preferred embodiment, a catalytic mechanism 7 is provided in the secondary treatment chamber 3 for accelerating the precipitation of grease in the kitchen wastewater. The catalytic mechanism 7 includes a third rotating shaft 701, a roller 702 and a driving blade 703. The third rotating shaft 701 is rotatably mounted in the inner cavity of the housing 1. The roller 702 is fixedly mounted on the surface of the third rotating shaft 701. A plurality of driving blades 703 are fixedly mounted on the side wall of the roller 702. As the wastewater is continuously injected, the wastewater level in the primary treatment chamber 2 continues to rise and is discharged over the partition plate 601 into the secondary treatment chamber 3, impacting the driving blade 703 and driving the roller 702 to rotate.

[0027] Reference Figures 1-11As shown, in a preferred embodiment, the inner cavity of the roller 702 is symmetrically provided with an auxiliary agent cavity 704, a first piston 705 is slidably installed in the auxiliary agent cavity 704, a second spring 706 is fixedly installed in the auxiliary agent cavity 704, the other end of the second spring 706 is fixedly connected to the first piston 705, a first connecting rod 707 is fixedly installed on the side wall of the first piston 705, and a driving ball 708 is fixedly installed on the other end of the first connecting rod 707, a groove 709 is provided on the inner wall of the box body 1, a protrusion 710 is fixedly installed in the groove 709, which is used to drive the driving ball 708, under the action of the second spring 706, the driving ball 708 is driven to stick to the side wall of the groove 709, and as the roller 702 rotates, when the driving ball 708 contacts the protrusion 710, the first piston 705 is driven to move toward the inner cavity of the auxiliary agent cavity 704, and the active agent is injected into the liquid separation cavity 711, and the roller 702 rotates. The inner cavity 702 is symmetrically provided with a liquid separation cavity 711, and the side wall of the liquid separation cavity 711 is provided with a number of injection holes 712 for injecting active agents into the wastewater in batches, accelerating the oil-water separation process, reducing the oil-water interfacial tension, and helping the oil droplets to further gather and float. The third rotating shaft 701 is hollow, and a solvent tank 716 is installed on the side wall of the box body 1 for storing the active agent. One end of the third rotating shaft 701 is inserted into the solvent tank 716, and the hollow part of the third rotating shaft 701 is connected to the solvent tank 716. A first one-way valve 713 is symmetrically installed at one end of the auxiliary agent cavity 704, one of the first one-way valves 713 is connected to the liquid separation cavity 711, and the other first one-way valve 713 is connected to the hollow part of the third rotating shaft 701. A drainage plate 714 is fixedly installed in the inner cavity of the box body 1, and several interference flow rods 715 are installed on the surface of the drainage plate 714 for mixing the wastewater and the active agent again.

[0028] In a preferred embodiment, as the wastewater is continuously injected, the wastewater level in the primary treatment chamber 2 continues to rise, and passes over the partition plate 601 and is discharged into the secondary treatment chamber 3, impacting the driving blade 703 and pushing the roller 702 to rotate. Under the action of the second spring 706, the driving ball 708 is driven to stick to the side wall of the groove 709, and as the roller 702 rotates, when the driving ball 708 contacts the protrusion 710, the first piston 705 is driven to move toward the inner cavity of the auxiliary agent chamber 704, and the active agent is injected into the liquid separation chamber 711 and injected into the wastewater through the injection hole 712 to achieve batch injection. The wastewater then falls onto the surface of the drainage plate 714, and the wastewater and the active agent are mixed again by the spoiler rod 715, accelerating the oil-water separation process, reducing the oil-water interfacial tension, helping the oil droplets to further aggregate and float, and improving the oil removal efficiency.

[0029] Reference Figures 1-12As shown, in a preferred embodiment, an oil suction mechanism 8 is installed in the box body 1 for further absorbing grease. The oil suction mechanism 8 includes a water storage bin 801, a grille 802 and a floating block 803. The water storage bin 801 is installed at one end of the drainage plate 714. A grille 802 is installed between the water storage bin 801 and the inner wall of the box body 1. A floating block 803 is installed in the water storage bin 801. A second bracket 804 is fixedly installed on the inner wall of the box body 1. A guide rod 805 is fixedly installed on the surface of the floating block 803. The guide rod 805 is slidably connected to the second bracket 804. Wastewater can flow into the water storage bin 801 through the drainage plate 714, and as the liquid level rises, the floating block 803 is pushed upward and finally discharged from the grille 802.

[0030] Reference Figures 1-12 As shown, in a preferred embodiment, an oil collecting groove 806 is provided at the bottom of the floating block 803, and an oil guide hole 807 is provided on the side wall of the floating block 803. The waste water in the water storage bin 801 flows in, and the grease floats upward again and enters the oil collecting groove 806 through the oil guide hole 807. An oil suction hole 808 is provided at the bottom of the floating block 803, and a cavity 809 is provided in the inner cavity of the floating block 803. The cavity 809 is communicated with the oil suction hole 808. An oil pumping cylinder 810 is fixedly installed on the side wall of the partition plate 601 for sucking the grease in the oil collecting groove 806. A second piston 811 is slidably installed in the oil pumping cylinder 810, and a second connecting rod 812 is fixedly installed on the surface of the second piston 811. An oil tank 813 is fixedly installed on the side wall of the box body 1 for storing grease. A second connecting rod 812 is symmetrically installed at one end of the oil pumping cylinder 810 One-way valve 814, one of the second one-way valves 814 and the oil tank 813 is connected by an oil pipe, and the other second one-way valve 814 is connected by an oil pipe to the cavity 809. The side wall of the arc-shaped driving disk 615 is slidably installed with an abutment block 815, and the inner cavity of the arc-shaped driving disk 615 is provided with a slide groove 816. The side wall of the abutment block 815 is fixedly installed with a slide rod 817, and the slide rod 817 is slidably inserted in the inner cavity of the slide groove 816. When the arc-shaped driving disk 615 rotates, the abutment block 815 is driven by the slide groove 816 and the slide rod 817 to drive the second connecting rod 812 to move back and forth left and right, so that the grease in the oil collecting groove 806 is sucked into the oil pump 810 through the oil suction hole 808 and the cavity 809 through the second piston 811, and injected into the oil tank 813, thereby further removing oil from the wastewater and improving the oil removal effect.

[0031] In a preferred embodiment, when in use, wastewater can flow into the water storage tank 801 through the drainage plate 714, and as the liquid level rises, the floating block 803 is pushed upward, and finally discharged by the grille 802, and the wastewater flowing into the water storage tank 801, the grease floats upward again, and enters the oil collecting tank 806 through the oil guide hole 807. When the arc-shaped driving disk 615 rotates, the abutment block 815 is driven by the slide groove 816 and the slide rod 817 to drive the second connecting rod 812 to move back and forth left and right, so that the grease in the oil collecting tank 806 is sucked into the oil pump 810 through the oil suction hole 808 and the cavity 809 through the second piston 811, and injected into the oil tank 813, thereby further removing oil from the wastewater and improving the oil removal effect.

[0032] Specifically, the working principle of this catering wastewater treatment equipment is as follows: when in use, the catering wastewater is introduced into the primary treatment chamber 2 through the water inlet pipe 4. Under the action of the partition plate 601, the water level in the primary treatment chamber 2 gradually rises until the bottom of the scraper roller 602 is immersed in the wastewater. The motor 603 drives the scraper roller 602 to rotate clockwise to scrape the grease floating on the surface of the wastewater into the oil storage chamber 604. The air pump 618 can be used to inject air into the hollow part of the second rotating shaft 614, and the air is sprayed into the wastewater through the nozzle 617, so that the bubbles adhere to the surface of the grease particles, reduce the overall density, accelerate the floating, and through stirring The rod 616 synchronously mixes the wastewater, increases the contact area between the bubbles and the wastewater, and accelerates the floating of the grease. When the gear 607 is engaged with the tooth plate 608, it drives the first rotating shaft 605 and the scraper 606 to rotate. Under the action of the scraper 606 and the gravity of the grease, the grease falls onto the surface of the oil guide plate 620 and is discharged from the box 1 for easy use. When the oil scraper roller 602 rotates, it drives the arc-shaped drive disk 615 to rotate synchronously, and with the cooperation of the first spring 613, drives the push block 612 to drive the oil floating plate 609 to move up and down, thereby pushing the grease on the surface of the wastewater into the oil storage chamber 604 again, thereby improving the oil scraping effect.

[0033] As the wastewater is continuously injected, the wastewater level in the primary treatment chamber 2 continues to rise, and passes over the partition plate 601 and is discharged into the secondary treatment chamber 3, impacting the driving blade 703 and pushing the roller 702 to rotate. Under the action of the second spring 706, the driving ball 708 is driven to stick to the side wall of the groove 709, and as the roller 702 rotates, when the driving ball 708 contacts the protrusion 710, the first piston 705 is driven to move toward the inner cavity of the auxiliary agent chamber 704, and the active agent is injected into the liquid separation chamber 711 and injected into the wastewater through the injection hole 712 to achieve batch injection. The wastewater then falls onto the surface of the drainage plate 714 and is mixed again with the active agent by the spoiler rod 715, accelerating the oil-water separation process, reducing the oil-water interfacial tension, helping the oil droplets to further aggregate and float, and improving the oil removal efficiency.

[0034] The wastewater can flow into the water storage tank 801 through the drainage plate 714, and as the liquid level rises, the floating block 803 is pushed upward, and finally discharged by the grille 802, and the wastewater flowing into the water storage tank 801, the grease floats upward again and enters the oil collecting tank 806 through the oil guide hole 807. When the arc-shaped driving disk 615 rotates, the abutment block 815 is driven by the slide groove 816 and the slide rod 817 to drive the second connecting rod 812 to move back and forth left and right, so that the grease in the oil collecting tank 806 is sucked into the oil pump 810 through the oil suction hole 808 and the cavity 809 through the second piston 811, and injected into the oil tank 813, thereby further removing oil from the wastewater and improving the oil removal effect.

[0035] A method for treating restaurant wastewater, applicable to the above-mentioned restaurant wastewater treatment equipment, comprises the following steps: S1: Preliminary oil removal: Restaurant wastewater is introduced into the primary treatment chamber 2 through the water inlet pipe 4. Under the action of the partition plate 601, the water level in the primary treatment chamber 2 gradually rises until the bottom of the oil scraper roller 602 is submerged in the wastewater. The motor 603 drives the oil scraper roller 602 to rotate clockwise, scraping the grease floating on the surface of the wastewater into the oil storage chamber 604. When the gear 607 engages with the tooth plate 608, it drives the first rotating shaft 605 and the scraper 606 to rotate. Under the action of the scraper 606 and the gravity of the grease, the grease falls onto the surface of the oil guide plate 620 and is discharged from the box 1. S2: Catalysis; As wastewater is continuously injected, the wastewater level in the primary treatment chamber 2 continues to rise, impacting the driving blade 703, pushing the roller 702 to rotate. Under the action of the second spring 706, the driving ball 708 is driven to stick to the side wall of the groove 709. As the roller 702 rotates, when the driving ball 708 contacts the protrusion 710, the first piston 705 is driven to move toward the inner cavity of the auxiliary agent chamber 704, injecting the active agent into the liquid separation chamber 711 and then into the wastewater through the injection hole 712. The wastewater then falls onto the surface of the drain plate 714 and is mixed again with the active agent by the spoiler rod 715; S3: Secondary oil removal; wastewater flows into the water storage tank 801 through the drain plate 714, and as the liquid level rises, the floating block 803 is pushed upward, and the grease floats upward again and enters the oil collecting tank 806 through the oil guide hole 807. When the arc-shaped driving disk 615 rotates, the abutment block 815 is driven by the slide groove 816 and the slide rod 817 to drive the second connecting rod 812 to move back and forth left and right, so that the grease in the oil collecting tank 806 is sucked into the oil pump 810 through the oil suction hole 808 and the cavity 809 through the second piston 811, and injected into the oil tank 813, thereby further removing the oil from the wastewater.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A catering wastewater treatment device, comprising a housing (1), wherein the housing (1) is provided with a primary treatment chamber (2) and a secondary treatment chamber (3) in its inner cavity, characterized in that: The box (1) is provided with an oil scraping mechanism (6) for preliminarily scraping off grease in the catering wastewater. The oil scraping mechanism (6) comprises: A partition plate (601), the partition plate (601) being installed between the primary processing chamber (2) and the secondary processing chamber (3); An oil scraping roller (602), the oil scraping roller (602) being rotatably mounted in the inner cavity of the box (1), and the inner cavity of the oil scraping roller (602) being provided with a plurality of oil storage cavities (604); a first rotating shaft (605), the first rotating shaft (605) being rotatably mounted in the oil storage chamber (604), and a scraper (606) being fixedly mounted on the surface of the first rotating shaft (605) for scraping grease in the oil storage chamber (604); An oil floating plate (609) is slidably mounted in the primary processing chamber (2) and is used to push floating oil into the oil storage chamber (604).

2. A restaurant wastewater treatment equipment according to claim 1, characterized in that, A water inlet pipe (4) is installed on the side wall of the box body (1) for introducing catering wastewater. The bottom of the primary treatment chamber (2) is connected to a waste discharge pipe (5). The side wall of the secondary treatment chamber (3) is connected to a drain pipe (9). A motor (603) is fixedly installed on the side wall of the box body (1). The output end of the motor (603) is fixedly connected to one end of the oil scraping roller (602) for driving the oil scraping roller (602) to rotate.

3. A restaurant wastewater treatment equipment according to claim 2, characterized in that, A gear (607) is fixedly mounted on one end of the first rotating shaft (605), a toothed plate (608) is fixedly mounted on the inner wall of the box body (1), the toothed plate (608) meshing with the gear (607), and an oil guide plate (620) is fixedly mounted in the inner cavity of the box body (1) for discharging grease.

4. A restaurant wastewater treatment equipment according to claim 3, characterized in that: A push rod (610) is symmetrically fixedly installed at the bottom of the oil floating plate (609), a first bracket (611) is fixedly installed on the inner wall of the box body (1), the push rod (610) is slidably connected to the first bracket (611), a push block (612) is fixedly installed at the other end of the push rod (610), a first spring (613) is sleeved on the surface of the push rod (610), one end of the first spring (613) is fixedly connected to the first bracket (611), and the other end of the first spring (613) is fixedly connected to the push block (612), and is used to drive the oil floating plate (609) to move downward.

5. A restaurant wastewater treatment equipment according to claim 4, characterized in that, A second rotating shaft (614) is rotatably mounted in the inner cavity of the housing (1), and an arc-shaped driving disk (615) is symmetrically fixedly mounted on the surface of the second rotating shaft (614). The push block (612) is in contact with the surface of the driving disk (615). The oil scraping roller (602) and one end of the second rotating shaft (614) are both mounted with pulleys, and a belt is connected between the two pulleys. A stirring rod (616) is symmetrically fixedly mounted on the side wall of the second rotating shaft (614). The stirring rod (616) and the second rotating shaft (614) are both hollow. A spray hole (617) is opened on the side wall of the stirring rod (616), and the spray hole (617) is connected to the hollow part of the stirring rod (616). An air pump (618) is fixedly mounted on the side wall of the housing (1), and a rotary joint (619) is connected between the air outlet end of the air pump (618) and the hollow part of the second rotating shaft (614).

6. A restaurant wastewater treatment equipment according to claim 5, characterized in that: A catalytic mechanism (7) is provided in the secondary treatment chamber (3) for accelerating the precipitation of grease in the kitchen wastewater. The catalytic mechanism (7) comprises a third rotating shaft (701), a rotating roller (702) and a driving blade (703). The third rotating shaft (701) is rotatably mounted in the inner cavity of the box (1). The rotating roller (702) is fixedly mounted on the surface of the third rotating shaft (701). A plurality of driving blades (703) are fixedly mounted on the side wall of the rotating roller (702).

7. A restaurant wastewater treatment equipment according to claim 6, characterized in that: The roller (702) has an inner cavity symmetrically provided with an auxiliary agent cavity (704), a first piston (705) is slidably mounted in the auxiliary agent cavity (704), a second spring (706) is fixedly mounted in the auxiliary agent cavity (704), the other end of the second spring (706) is fixedly connected to the first piston (705), a first connecting rod (707) is fixedly mounted on the side wall of the first piston (705), a driving ball (708) is fixedly mounted on the other end of the first connecting rod (707), a groove (709) is formed on the inner wall of the box body (1), a bump (710) is fixedly mounted in the groove (709) for driving the driving ball (708), a liquid separation cavity (711) is symmetrically formed in the inner cavity of the roller (702), and a liquid separation cavity (711) is formed on the side wall thereof. A plurality of injection holes (712), the third rotating shaft (701) is hollow, a solvent box (716) is installed on the side wall of the box body (1) for storing the active agent, one end of the third rotating shaft (701) is inserted into the solvent box (716), and the hollow part of the third rotating shaft (701) is connected to the solvent box (716), one end of the auxiliary agent chamber (704) is symmetrically installed with a first one-way valve (713), one of the first one-way valves (713) is connected to the liquid separation chamber (711), and the other first one-way valve (713) is connected to the hollow part of the third rotating shaft (701), the inner cavity of the box body (1) is fixedly installed with a drainage plate (714), and the surface of the drainage plate (714) is installed with a plurality of interference flow rods (715) for re-mixing the wastewater and the active agent.

8. A restaurant wastewater treatment equipment according to claim 7, characterized in that: An oil suction mechanism (8) is installed in the box body (1) for further absorbing grease. The oil suction mechanism (8) includes a water storage bin (801), a grille (802) and a floating block (803). The water storage bin (801) is installed at one end of the drain plate (714). A grille (802) is installed between the water storage bin (801) and the inner wall of the box body (1). A floating block (803) is installed in the water storage bin (801). A second bracket (804) is fixedly installed on the inner wall of the box body (1). A guide rod (805) is fixedly installed on the surface of the floating block (803). The guide rod (805) is slidably connected to the second bracket (804).

9. A restaurant wastewater treatment equipment according to claim 8, characterized in that: The bottom of the float (803) is provided with an oil collecting groove (806), the side wall of the float (803) is provided with an oil guide hole (807), the bottom of the float (803) is provided with an oil suction hole (808), the inner cavity of the float (803) is provided with a cavity (809), the cavity (809) is communicated with the oil suction hole (808), the side wall of the partition plate (601) is fixedly installed with an oil pumping cylinder (810), a second piston (811) is slidably installed in the oil pumping cylinder (810), a second connecting rod (812) is fixedly installed on the surface of the second piston (811), and the side wall of the box body (1) is fixed. An oil tank (813) is installed, and a second one-way valve (814) is symmetrically installed at one end of the pumping cylinder (810), an oil pipe is connected between one of the second one-way valves (814) and the oil tank (813), and an oil pipe is connected between the other second one-way valve (814) and the cavity (809), an abutment block (815) is slidably installed on the side wall of the arc-shaped driving disk (615), a slide groove (816) is opened in the inner cavity of the arc-shaped driving disk (615), a slide rod (817) is fixedly installed on the side wall of the abutment block (815), and the slide rod (817) is slidably inserted in the inner cavity of the slide groove (816).

10. A method for treating restaurant wastewater, applicable to the restaurant wastewater treatment equipment according to claim 9, characterized in that: The steps include: S1: Preliminary oil removal; the restaurant wastewater is introduced into the primary treatment chamber (2) through the water inlet pipe (4). Under the action of the partition plate (601), the water level in the primary treatment chamber (2) gradually rises until the bottom of the scraper roller (602) is submerged in the wastewater. The motor (603) drives the scraper roller (602) to rotate clockwise to scrape the grease floating on the surface of the wastewater into the oil storage chamber (604). When the gear (607) is engaged with the tooth plate (608), the first rotating shaft (605) and the scraper (606) are driven to rotate. Under the action of the scraper (606) and the gravity of the grease, the grease falls onto the surface of the oil guide plate (620) and is discharged from the box (1); S2: catalysis; As the wastewater is continuously injected, the wastewater level in the primary treatment chamber (2) continues to rise, impacting the driving blade (703), pushing the roller (702) to rotate, and under the action of the second spring (706), driving the driving ball (708) to stick to the side wall of the groove (709). As the roller (702) rotates, when the driving ball (708) contacts the protrusion (710), the first piston (705) is driven to move toward the inner cavity of the auxiliary agent chamber (704), injecting the active agent into the liquid separation chamber (711) and then into the wastewater through the injection hole (712). The wastewater then falls onto the surface of the drainage plate (714) and is mixed again with the active agent through the spoiler rod (715); S3: Secondary oil removal; wastewater flows into the water storage tank (801) through the drain plate (714), and as the liquid level rises, the floating block (803) is pushed upward, and the grease floats upward again and enters the oil collecting tank (806) through the oil guide hole (807). When the arc-shaped driving disk (615) rotates, the abutment block (815) is driven by the slide groove (816) and the slide rod (817) to drive the second connecting rod (812) to move back and forth, so that the grease in the oil collecting tank (806) is sucked into the oil pump (810) through the oil suction hole (808) and the cavity (809) through the second piston (811), and then injected into the oil tank (813), thereby further removing the oil from the wastewater.

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