COD wastewater treatment device of ultrasonic air floatation equipment

Abstract

The application discloses an ultrasonic gas floatation equipment COD wastewater treatment device and belongs to the technical field of sewage treatment equipment. The ultrasonic gas floatation equipment COD wastewater treatment device comprises a gas floatation tank, a residue discharging assembly is arranged on the outer wall of the gas floatation tank, a residue scraping plate cleaning piece comprises a scraper, a water channel is formed in the inner wall of the scraper, a connecting plate is connected to the outer wall of a spring, and a contact is connected to the outer wall of the connecting plate. The ultrasonic gas floatation equipment COD wastewater treatment device is characterized in that the residue scraping machine and the residue scraping plate cleaning piece are matched, the residue scraping plate extrudes the contact, clean water can be sprayed out through the front end of the contact, the surface of the residue scraping plate is cleaned, the scraper can scrape off the residual floating matter on the surface of the residue scraping plate, after the residue scraping plate completely passes through the surface of the scraper, the spring pushes the contact and limits the water outlet hole, the waste caused by the continuous water outflow is prevented, the torsional spring is forced to push the residue scraping plate to reset, the residue scraping plate does not affect the subsequent residue scraping work, and the overall easy-to-use property of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment equipment, and particularly relates to a COD wastewater treatment device of an ultrasonic air flotation equipment. BACKGROUND

[0002] Water resource shortage is increasingly serious, with the rapid development of economy, industrial water resource consumption is increasingly large, and wastewater discharge is also steeply increased, environmental protection consciousness is enhanced, and people have higher and higher requirements on water quality. Therefore, improving the efficiency of treating wastewater and reducing the cost of treating wastewater have great significance to the environmental protection industry.

[0003] A temperature control ultrasonic air flotation treatment device in cold northern regions is disclosed in Chinese patent CN110844960A authorized and announced on February 28, 2020, wherein the ultrasonic wave can degrade chemical pollutants and refractory organic matter in water, and can also emulsify oil and fat, and can be used alone or in combination with other technologies, which is a new water treatment technology with great development potential, can maximize the coagulation effect, reduce the process load and improve the treatment efficiency, but in the use process of the ultrasonic air flotation treatment device, most of the floating objects on the surface of the wastewater are scraped into the inside of the residue discharge tank by the residue scraping plate during the residue scraping work of the residue scraping plate, but a part of the floating objects will be adsorbed on the surface of the residue scraping plate and return to the inside of the wastewater again with the movement of the residue scraping plate, thereby reducing the working efficiency of the residue scraping plate and making the residue scraping plate still relatively inconvenient to use. SUMMARY

[0004] The present application is proposed to solve the problem that in the use process of the prior art, most of the floating objects on the surface of the wastewater are scraped into the inside of the residue discharge tank by the residue scraping plate during the residue scraping work of the residue scraping plate, but a part of the floating objects will be adsorbed on the surface of the residue scraping plate and return to the inside of the wastewater again with the movement of the residue scraping plate, thereby reducing the working efficiency of the residue scraping plate and making the residue scraping plate still relatively inconvenient to use. Therefore, the present application provides a COD wastewater treatment device of an ultrasonic air flotation equipment, which can clean the residue scraping plate during the work of the residue scraping plate.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a COD wastewater treatment device of an ultrasonic air flotation equipment, comprising an air flotation tank, a residue discharge tank is fixedly connected to the outer wall of the air flotation tank, a filter screen is installed on the inner wall of the residue discharge tank, a water inlet is formed in the outer wall of the air flotation tank, a residue discharge assembly is arranged on the outer wall of the air flotation tank, the residue discharge assembly comprises a residue scraping machine group connected with the air flotation tank, a residue scraping plate cleaning piece is fixedly connected to the outer wall of the residue discharge tank, and a control water injection group is slidably connected to the inner wall of the air flotation tank.

[0006] The slag scraping plate cleaning piece comprises a scraper plate installed on the surface of the slag discharge tank, a water pipe connected to the outer wall of the scraper plate, a water passing groove opened on the inner wall of the scraper plate, a baffle fixedly connected to the inner wall of the water passing groove, a spring fixedly connected to the surface of the baffle, a connecting plate fixedly connected to the outer wall of one end of the spring, a groove opened on the outer wall of the connecting plate and slidably connected to the inner wall of the water passing groove, a contact fixedly connected to the outer wall of the connecting plate, and a water outlet hole opened on the outer wall of the contact.

[0007] Preferably, a plurality of openings are opened on the outer wall of the baffle and symmetrically arranged about the central axis of the baffle, so that the normal flow of water in the water passing groove is ensured.

[0008] Preferably, one end of the contact protrudes from the surface of the scraper plate, so that the spring can push the contact back to its original position when no external force is applied.

[0009] Preferably, the slag scraping machine group comprises a driving motor installed on the surface of the air floatation tank, a gear fixedly connected to the outer wall of one end of the driving motor, a chain engaged with the surface of the gear, a connecting block fixedly connected to the outer wall of the chain, a slag scraping plate rotatably connected to the inner wall of the connecting block, and a torsional spring fixedly connected to the outer walls of both ends of the slag scraping plate and to the inner wall of the connecting block.

[0010] Preferably, the slag scraping plate is rotatably connected to the connecting block through the torsional spring, so that the torsional spring can push the slag scraping plate back to its original position when no external force is applied.

[0011] Preferably, the control water injection group comprises a chute opened on the surface of the air floatation tank, a first air chamber opened on the inner wall of the air floatation tank, a second air chamber opened on the inner wall of the air floatation tank and connected to the top end of the first air chamber, a sliding block slidably connected to the inner wall of the chute, a piston rod fixedly connected to the outer wall of the sliding block and slidably connected to the inner wall of the first air chamber, a connecting pipe fixedly connected to the inner wall of the second air chamber, and an air bag fixedly connected to the outer wall of one end of the connecting pipe and installed inside the water injection port.

[0012] Preferably, the sliding block is made of plastic, which has strong corrosion resistance, light weight and large buoyancy, thereby improving the service life of the device.

[0013] Preferably, a plurality of ropes for being fixed to the inside of the water injection port are connected to the outer wall of the air bag and symmetrically arranged about the central axis of the air bag, so that the stability of the air bag inside the water injection port is ensured.

[0014] The difference from the prior art is that the application has the beneficial effects of:

[0015] (1) The ultrasonic air flotation equipment treatment COD wastewater device, through the cooperation of the slag scraper set and the slag scraping plate cleaning part, when the slag scraping plate extrusion contact makes clean water able to be sprayed out through the front end of the contact and clean the surface of the slag scraping plate, at the same time, the scraper can scrape off the residual floating matter on the surface of the slag scraping plate, after the slag scraping plate completely passes through the surface of the scraper, the spring pushes the contact and limits the water outlet hole, preventing the clean water from continuing to flow out and causing waste, the torsional spring force pushes the slag scraping plate to reset, so that the slag scraping plate does not affect the subsequent slag scraping work, and the overall ease of use of the device is improved.

[0016] (2) The ultrasonic air flotation equipment treatment COD wastewater device, through the design of the process flow chart, the air compressor supplies compressed air to the dissolved air pressure tank, the compressed air in the wastewater breaks instantaneously under the action of ultrasonic, the high temperature and high pressure generated in the breaking process makes the high molecular decomposition, chemical bond rupture and generates hydroxyl radicals, not only achieves the purpose of removing pollutants, but also reduces the number of equipment required by the ultrasonic equipment and the processing cost, and improves the overall ease of use of the device.

[0017] (3) The ultrasonic air flotation equipment treatment COD wastewater device, through the setting of the water injection group, through the rise and fall of the wastewater level and the buoyancy of the connecting block to push the piston rod to inflate and deflate the first air chamber, so as to control the expansion and contraction of the air bag, which can ensure that the surface of the wastewater can submerge the surface of the slag scraping plate, and also prevent the wastewater from overflowing the surface of the air flotation tank, and improve the overall ease of use of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the appearance structure of the application;

[0019] Figure 2 The figure is a schematic diagram of the process flow of the application;

[0020] Figure 3 The figure is a schematic diagram of the slag discharge tank and filter screen cooperation structure of the application;

[0021] Figure 4 The figure is a schematic diagram of the gear and chain cooperation structure of the application;

[0022] Figure 5 The figure is a schematic diagram of the scraper and water pipe cooperation structure of the application;

[0023] Figure 6 The figure is a schematic diagram of the first air chamber and the second air chamber cooperation structure of the application;

[0024] Figure 7 The figure is a schematic diagram of the Figure 4 The figure is a schematic diagram of the enlarged structure of A in the application;

[0025] Figure 8 For the present invention Figure 5 Amplification structure schematic diagram in B.

[0026] In the figure:

[0027] 1, air floatation tank; 2, residue discharge tank; 3, filter screen; 4, water injection port; 5, residue discharge assembly; 511, driving motor; 512, gear; 513, chain; 514, connecting block; 515, residue scraping plate; 516, torsion spring; 521, scraper; 522, water pipe; 523, water passage; 524, baffle; 525, spring; 526, connecting plate; 527, groove; 528, contact; 529, water outlet hole; 531, chute; 532, first air chamber; 533, second air chamber; 534, sliding block; 535, piston rod; 536, connecting pipe; 537, air bag. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0029] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0031] And, the above-mentioned partial terms, in addition to can be used to express the orientation or positional relationship, possibly also be used to express other meanings, for example, the term "upper" in some cases can also be used to express a certain dependent relationship or connection relationship. For those of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0032] In addition, the terms "mounting", "setting", "provided with", "connecting", "connected", "sleeved" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments. Embodiments

[0034] Please refer to Figure 1 - Figure 8 As shown in the figure, an ultrasonic gas float equipment treatment COD wastewater device, including gas float pool 1, the outer wall of gas float pool 1 is fixedly connected with the residue pool 2, the inner wall of residue pool 2 is installed with filter screen 3, the outer wall of gas float pool 1 is provided with water inlet 4, the outer wall of gas float pool 1 is equipped with residue removal assembly 5, residue removal assembly 5 includes the residue removal machine group connected with gas float pool 1, the outer wall of residue pool 2 is fixedly connected with the residue removal plate cleaning part, the inner wall of gas float pool 1 is slidably connected with the control water injection group;

[0035] The residue removal plate cleaning part includes a scraper 521, which is installed on the surface of the residue pool 2, and a water pipe 522 is connected to the outer wall of the scraper 521. A water passage 523 is formed in the inner wall of the scraper 521, and a baffle 524 is fixedly connected to the inner wall of the water passage 523. A spring 525 is fixedly connected to the surface of the baffle 524, and one end of the outer wall of the spring 525 is fixedly connected to a connecting plate 526. A recess 527 is formed in the outer wall of the connecting plate 526, and the outer wall of the connecting plate 526 is slidably connected to the inner wall of the water passage 523. A contact 528 is fixedly connected to the outer wall of the connecting plate 526, and a water outlet hole 529 is formed in the outer wall of the contact 528.

[0036] When the scraper 515 moves to the surface of the scraper 521, the contact 528 is pushed to slide to the inside of the water channel 523, so that the connecting plate 526 presses the spring 525 and releases the limitation of the groove 527 and the water outlet hole 529, thereby exposing the water outlet hole 529 inside the water channel 523, so that the water injected into the inside of the scraper 521 can pass through the groove 527 and be injected into the inside of the water outlet hole 529, and finally be sprayed out through the front end of the contact 528, and clean the surface of the scraper 515. When the scraper 515 passes through the scraper 521, one end of the scraper 521 abuts against the surface of the scraper 515, and through the friction between the scraper 521 and the scraper 515, the scraper 521 can scrape off the residual floating matter on the surface of the scraper 515. After the surface of the scraper 515 is separated from the surface of the scraper 521, the connecting plate 526 and the contact 528 are pushed to slide in the inside of the water channel 523 by the pushing force of the spring 525, and the water outlet hole 529 is repositioned to prevent the water from continuing to flow out and causing unnecessary waste, thereby improving the overall ease of use of the device.

[0037] Referring to Figure 4 - Figure 7 As shown in the drawings, the slag scraping unit comprises a driving motor 511, the driving motor 511 is installed on the surface of the air floatation tank 1, one end of the outer wall of the driving motor 511 is fixedly connected with a gear 512, the surface of the gear 512 is engaged with a chain 513, the outer wall of the chain 513 is fixedly connected with a connecting block 514, the inner wall of the connecting block 514 is rotatably connected with a scraper 515, the outer walls of the two ends of the scraper 515 are fixedly connected with a torsion spring 516, and one end of the outer wall of the torsion spring 516 is fixedly connected with the inner wall of the connecting block 514.

[0038] In use, the external power source is connected to start the driving motor 511 to drive the chain 513 to rotate through the gear 512, thereby pushing the scraper 515 to scrape the surface of the wastewater. When the surface of the scraper 515 touches the surface of the scraper 521, the scraper 521 generates a pushing force on the scraper 515, so that the scraper 515 rotates around the center point of the connecting block 514 when passing through the surface of the scraper 521, and drives the torsion spring 516 to twist. After the scraper 515 completely passes through the surface of the scraper 521, the torsion spring 516 pushes the scraper 515 to reset under the action of the force, so that the scraper 515 does not affect the subsequent scraping work, thereby improving the overall ease of use of the device.

[0039] Referring to Figure 4 - Figure 6As shown in the figure, the control water injection group comprises a sliding groove 531, which is arranged on the surface of the air floatation tank 1. A first air chamber 532 is arranged on the inner wall of the air floatation tank 1. A second air chamber 533 is arranged on the inner wall of the air floatation tank 1 and is connected with the top end of the first air chamber 532. A sliding block 534 is slidably connected to the inner wall of the sliding groove 531. A piston rod 535 is fixedly connected to the outer wall of the sliding block 534. The outer wall of one end of the piston rod 535 is slidably connected with the inner wall of the first air chamber 532. A connecting pipe 536 is fixedly connected to the inner wall of the second air chamber 533. An air bag 537 is fixedly connected to the outer wall of one end of the connecting pipe 536 and is arranged in the interior of the water injection port 4.

[0040] When the slag scraping plate 515 scrapes the floating objects on the surface of the wastewater and a part of the wastewater is scraped into the slag discharging tank 2 together with the floating objects, the water level in the air floatation tank 1 is lowered. At this time, the sliding block 534 floating on the surface of the wastewater slides in the interior of the sliding groove 531, so that the sliding block 534 presses the piston rod 535 to slide downward in the interior of the first air chamber 532 and draws the air in the interior of the second air chamber 533 into the interior of the first air chamber 532. When the air in the interior of the second air chamber 533 enters the interior of the first air chamber 532, the second air chamber 533 draws the air in the interior of the air bag 537 out through the connecting pipe 536, so that the air bag 537 is contracted inward and is released from the limiting of the water injection port 4. After the new wastewater enters the interior of the air floatation tank 1 through the water injection port 4, the water level in the interior of the air floatation tank 1 rises and pushes the sliding block 534 to slide in the interior of the sliding groove 531, so as to pull the piston rod 535 to slide upward in the interior of the first air chamber 532. The air in the interior of the first air chamber 532 is squeezed into the interior of the second air chamber 533, and then enters the interior of the air bag 537 through the connecting pipe 536, so as to inflate and expand the air bag 537 and limit the water injection port 4. The wastewater is prevented from continuously entering the interior of the air floatation tank 1, so as to guarantee that the surface of the wastewater can be submerged on the surface of the slag scraping plate 515 and prevent the wastewater from overflowing the surface of the air floatation tank 1. The overall ease of use of the device is improved.

[0041] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An ultrasonic gas float device treatment COD wastewater device, comprising a gas float tank (1), a deslagging tank (2) is fixedly connected to the outer wall of the gas float tank (1), a filter screen (3) is installed on the inner wall of the deslagging tank (2), a water inlet (4) is formed on the outer wall of the gas float tank (1), a deslagging assembly (5) is assembled on the outer wall of the gas float tank (1), the deslagging assembly (5) comprises a deslagging machine group connected with the gas float tank (1), a deslagging plate cleaning piece is fixedly connected to the outer wall of the deslagging tank (2), and a control water injection group is slidably connected to the inner wall of the gas float tank (1). characterized in that The deslagging plate cleaning piece comprises a scraper (521), the scraper (521) is installed on the surface of the deslagging tank (2), a water pipe (522) is connected to the outer wall of the scraper (521), a water passing groove (523) is formed on the inner wall of the scraper (521), a baffle (524) is fixedly connected to the inner wall of the water passing groove (523), a spring (525) is fixedly connected to the surface of the baffle (524), one end of the outer wall of the spring (525) is fixedly connected with a connecting plate (526), a groove (527) is formed on the outer wall of the connecting plate (526), the outer wall of the connecting plate (526) is slidably connected with the inner wall of the water passing groove (523), a contact (528) is fixedly connected to the outer wall of the connecting plate (526), and a water outlet hole (529) is formed on the outer wall of the contact (528). A plurality of slits are formed on the outer wall of the baffle (524) and symmetrically arranged about the central axis of the baffle (524). One end of the contact (528) protrudes from the surface of the scraper (521).

2. The device according to claim 1, wherein the device is characterized by: The deslagging machine group comprises a driving motor (511), the driving motor (511) is installed on the surface of the gas float tank (1), a gear (512) is fixedly connected to one end of the outer wall of the driving motor (511), the gear (512) is engaged with a chain (513), a connecting block (514) is fixedly connected to the outer wall of the chain (513), a deslagging plate (515) is rotatably connected to the inner wall of the connecting block (514), torsional springs (516) are fixedly connected to the outer walls of both ends of the deslagging plate (515), and one end of the outer wall of the torsional spring (516) is fixedly connected with the inner wall of the connecting block (514).

3. The device according to claim 2, wherein the device is characterized by: The deslagging plate (515) is rotatably connected with the connecting block (514) through the torsional spring (516).

4. The device according to claim 1, wherein the device is characterized by: The control water injection group includes a chute (531) which is opened on the surface of the air flotation tank (1), a first air chamber (532) is opened on the inner wall of the air flotation tank (1), a second air chamber (533) is opened on the inner wall of the air flotation tank (1), and the second air chamber (533) is connected with the top of the first air chamber (532), a sliding block (534) is slidingly connected on the inner wall of the chute (531), a piston rod (535) is fixedly connected on the outer wall of the sliding block (534), and the outer wall of one end of the piston rod (535) is slidingly connected with the inner wall of the first air chamber (532), a connecting pipe (536) is fixedly connected on the inner wall of the second air chamber (533), the outer wall of one end of the connecting pipe (536) is fixedly connected with an air bag (537), and the air bag (537) is installed in the inside of the water injection port (4).

5. The device according to claim 4, wherein the device is characterized by: The sliding block (534) is made of plastic material.

6. The device according to claim 4, wherein the device is characterized by: A plurality of groups of ropes which are fixed in the water injection port (4) are connected on the outer wall of the air bag (537), and are symmetrically arranged with the central axis of the air bag (537).

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