Efficient energy-saving air flotation device for oily wastewater treatment

Abstract

The utility model relates to an efficient energy-saving air floatation device for oily wastewater treatment, which is applied to the field of wastewater treatment and comprises an air floatation device treatment bin, a sludge storage bin is arranged on the front side of the air floatation device treatment bin, a sewage outlet valve port is arranged at the lower end of the sludge storage bin, and a pair of outer side supports are arranged at the inner end of the air floatation device treatment bin. The efficient energy-saving air flotation machine comprises an air flotation machine treatment bin, an outer side support is installed at the upper end of the air flotation machine treatment bin, a dissolved air pressure gauge is installed at the inner end of the outer side support, upper frame bodies are symmetrically and fixedly connected to the left side and the right side of the upper end of the air flotation machine treatment bin, an electric material conveying belt is installed between the two upper frame bodies, and two displacement trusses are installed at the outer end of the electric material conveying belt. The thickness change of the sludge layer above the wastewater layer is monitored through the light emitter on the left side and the light receiver on the right side according to the light shielding and scattering principle. And the control terminal dynamically adjusts the output power of the motor based on a preset logic algorithm according to the sludge layer thickness reflected by the illumination intensity change.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of high-efficiency energy-saving air floatation for oily wastewater treatment, in particular to a kind of high-efficiency energy-saving air floatation for oily wastewater treatment applied to wastewater treatment field. BACKGROUND

[0002] In the production process of many industries such as oil exploitation, oil refining, chemical industry, machinery manufacturing and food processing, a large amount of oily wastewater will be generated. If this kind of wastewater is directly discharged without effective treatment, it will not only cause serious damage to the ecological environment of water body, leading to water quality deterioration and aquatic organism death, but also may cause soil pollution and affect the growth of surrounding crops.

[0003] The Chinese patent with publication number CN218262041U discloses an integrated air floatation oil removal device for oily wastewater, which comprises a box body and an air supply mechanism. A stirring shaft is rotatably connected inside the box body, and the stirring shaft is a hollow structure and penetrates through the top surface of the box body. The air supply mechanism includes an air supply cylinder. A piston is arranged inside the air supply cylinder, and the air supply cylinder is connected with a push plate through a spring. The present utility model sets the air supply cylinder, the stirring shaft, the first gear, the second gear, the first bevel gear and the second bevel gear, so that when the oily wastewater is subjected to air floatation oil removal, the use of the air supply equipment of the air floatation machine is avoided, the energy consumption is saved, and the wastewater is subjected to air floatation simultaneously during stirring, thereby removing and purifying the oily wastewater.

[0004] In the existing air floatation machine for oily wastewater treatment, the slag scraping link mostly adopts fixed frequency slag scraping, which cannot be adjusted in real time according to the amount of sludge, causing energy waste and easily leading to untimely or excessive slag scraping of sludge, affecting the running stability and treatment effect of the equipment. Moreover, most air floatation equipment lacks effective monitoring means for the thickness of sludge layer, cannot dynamically adjust the operating parameters according to the actual working conditions, and causes low overall running efficiency of the equipment and high treatment cost. UTILITY MODEL CONTENTS

[0005] In view of the above existing technology, the technical problem to be solved by the present utility model is that in the existing air floatation machine for oily wastewater treatment, the slag scraping link mostly adopts fixed frequency slag scraping, which cannot be adjusted in real time according to the amount of sludge, causing energy waste and easily leading to untimely or excessive slag scraping of sludge, affecting the running stability and treatment efficiency of the equipment.

[0006] In order to solve the above problems, the utility model provides a kind of high -efficient energy -conserving air float for oily wastewater treatment, including air float processing bin, the front side of air float processing bin is provided with sludge storage, the lower end of sludge storage is provided with outlet valve, the inner end of air float processing bin is provided with a pair of outer side support, the inner end of outer side support is installed with dissolved air pressure device, the upper end of air float processing bin is fixedly connected with upper frame body on both sides of symmetry, electric material conveying belt is installed between two upper frame bodies, two displacement trusses are installed on the outer end of electric material conveying belt, the end of the displacement truss far from electric material conveying belt is provided with first rubber material scraping strip, the left and right two inner walls of air float processing bin are fixedly connected with sealed transparent inner bin of symmetry, a plurality of light emitters are fixedly connected on the inner wall upper side of left sealed transparent inner bin, a plurality of light receivers are fixedly connected on the inner wall upper side of right sealed transparent inner bin.

[0007] In the above high -efficient energy -conserving air float for oily wastewater treatment, through left light emitter and right light receiver, utilize light obstruction scattering principle, monitor the thickness change of sludge layer above wastewater layer.Control terminal according to the thickness of sludge layer reflected by illumination intensity change, based on preset logic algorithm, dynamically adjusts motor output power.

[0008] As further improvement of the present application, left and right corresponding light emitter and light receiver mutually horizontally cooperate, and the upper frame body is provided with protruding truss.

[0009] As further improvement of the present application, the inclined anti-scraping plate is installed between the two protruding trusses, and the first rubber scraping strip is fixedly connected with a plurality of springs on the side close to the inclined anti-scraping plate.

[0010] As further improvement of the present application, the plurality of springs are horizontally and equidistantly arranged, and the second rubber scraping strip is fixedly connected to the end of the spring away from the first rubber scraping strip.

[0011] As further improvement of the present application, the second rubber scraping strip cooperates with the inclined anti-scraping plate, and the wear-resistant outer layer is fixedly connected to the end of the second rubber scraping strip close to the inclined anti-scraping plate.

[0012] As further improvement of the present application, the wear-resistant outer layer contacts the inclined anti-scraping plate, and the electric material conveying belt is connected with the motor.

[0013] As further improvement of the present application, the air float processing bin is connected with the control terminal, and the control terminal is electrically connected with the motor, the plurality of light emitters and the light receivers through wires.

[0014] In summary, the air floatation machine processes multiple dissolved gas pressure vessels in the treatment bin to treat oil-containing wastewater, and the sealed transparent inner bin symmetrically arranged on the inner side wall of the air floatation machine treatment bin monitors the thickness change of the sludge layer above the wastewater layer by using the light ray emitter on the left side and the light ray receiver on the right side, and using the light ray shielding and scattering principle. Based on the preset logic algorithm, the control terminal dynamically adjusts the motor output power according to the sludge layer thickness reflected by the light intensity change, and then intelligently adjusts the running speed of the electric material conveying belt. When the sludge layer thickens, the speed of scraping mud is accelerated; when the sludge layer thins, the speed is slowed down to avoid invalid energy consumption, improve energy utilization efficiency, and reduce operating costs. During the return stroke of the first rubber scraping strip after completing the sludge scraping and conveying, the inclined counter-scraping plate between the protruding trusses of the upper frame body uses the inclined angle and structural design to scrape the residual sludge attached to the surface of the first rubber scraping strip in the opposite direction and drop it into the sludge storage bin, thereby reducing the workload of equipment cleaning and maintenance and maintaining the scraping performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure for the air floatation machine treatment bin of the first embodiment of the present application;

[0016] Figure 2 Figure for the upper frame body of the first embodiment of the present application;

[0017] Figure 3 Front view cross-sectional view of the air floatation machine treatment bin of the first embodiment of the present application;

[0018] Figure 4 Front view cross-sectional view of the air floatation machine treatment bin of the first embodiment of the present application in the water storage state;

[0019] Figure 5 Schematic diagram of the dissolved gas pressure vessel of the first embodiment of the present application;

[0020] Figure 6 Schematic diagram of the inclined counter-scraping plate of the first and second embodiments of the present application;

[0021] Figure 7 First rubber scraping strip of the second embodiment of the present application.

[0022] Explanation of reference numerals in the drawings:

[0023] 1. Air floatation machine treatment bin; 2. Sludge storage bin; 3. Upper frame body; 4. Electric material conveying belt; 5. Displacement truss; 6. First rubber scraping strip; 7. Sealed transparent inner bin; 8. Light ray emitter; 9. Light ray receiver; 10. Dissolved gas pressure vessel; 11. Outer support; 12. Spring; 13. Second rubber scraping strip; 14. Wear-resistant outer layer; 15. Protruding truss; 16. Inclined counter-scraping plate; 17. Motor; 18. Sludge outlet valve port. DETAILED DESCRIPTION

[0024] Two embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025] The first embodiment is as follows:

[0026] Figures 1-6 An efficient energy-saving air float for oil-containing wastewater treatment is shown, which comprises an air float treatment bin 1, a sludge storage bin 2 is arranged on the front side of the air float treatment bin 1, an outlet valve port 18 is arranged at the lower end of the sludge storage bin 2, a pair of outer supports 11 is arranged at the inner end of the air float treatment bin 1, a dissolved air pressure device 10 is installed at the inner end of the outer supports 11, a pair of upper frame bodies 3 is symmetrically fixed and connected to the upper end of the air float treatment bin 1, an electric conveying belt 4 is installed between the two upper frame bodies 3, two displacement trusses 5 are installed at the outer end of the electric conveying belt 4, a first rubber scraping strip 6 is arranged at the end of the displacement trusses 5 away from the electric conveying belt 4, a sealed transparent inner bin 7 is symmetrically fixed and connected to the inner walls of the air float treatment bin 1 on the left and right, a plurality of light emitters 8 are fixed and connected to the upper inner wall of the sealed transparent inner bin 7 on the left side, and a plurality of light receivers 9 are fixed and connected to the upper inner wall of the sealed transparent inner bin 7 on the right side.

[0027] Figures 1-6 The light emitters 8 and the light receivers 9 correspond to each other horizontally, the upper frame bodies 3 are provided with protruding trusses 15, an oblique anti-scraping plate 16 is installed between the two protruding trusses 15, an electric motor 17 is connected to the electric conveying belt 4, a control terminal is connected to the air float treatment bin 1, and the control terminal is electrically connected to the electric motor 17 and the plurality of light emitters 8 and light receivers 9 through wires.

[0028] Figures 1-6The multiple dissolved air pressure devices 10 arranged in the air flotation machine treatment bin 1 are used to treat the oil-containing wastewater in the air flotation machine treatment bin 1. During the treatment process, the sludge is affected by the buoyancy and related forces and floats to the water surface. At this time, the electric conveying belt 4 drives the first rubber scraping strip 6 connected to the end of the displacement truss 5 to perform reciprocating scraping operation above the sludge layer in the air flotation machine treatment bin 1 by the power provided by the motor 17. The first rubber scraping strip 6 scrapes the sludge floating to the top to the sludge storage bin 2 and guides the sludge out of the system through the sludge outlet valve 18 arranged at the lower end of the sludge storage bin 2. During the scraping operation of the first rubber scraping strip 6 with the electric conveying belt 4, the pair of sealed transparent inner bins 7 arranged symmetrically on the inner side wall of the air flotation machine treatment bin 1 play a monitoring role. In the pair of sealed transparent inner bins 7 on the inner side of the air flotation machine treatment bin 1, the light emitter 8 on the upper side of the inner side wall of the left sealed transparent inner bin 7 emits light, and the light receiver 9 on the upper side of the inner side wall of the right sealed transparent inner bin 7 receives light. When the thickness of the sludge layer above the wastewater layer changes, the sludge will block and scatter the light, resulting in a change in the light intensity received by the light receiver 9. By detecting the change in the light intensity, the change in the height of the sludge layer can be reflected. When the change in the light intensity detected by the light receiver 9 reflects that the thickness of the sludge layer increases, the control terminal sends an instruction to the motor 17 based on the preset control logic and algorithm to increase the output power of the motor 17, thereby speeding up the running speed of the electric conveying belt 4 and enabling the first rubber scraping strip 6 to more efficiently scrape off the sludge, avoiding excessive accumulation of the sludge affecting the air flotation effect. Conversely, when the thickness of the sludge layer decreases, the control terminal reduces the output power of the motor 17 to slow down the running speed of the electric conveying belt 4. The driving speed of the electric conveying belt 4 is dynamically and intelligently adjusted according to the actual thickness of the sludge layer, avoiding the invalid energy consumption of the motor 17, significantly improving the energy utilization efficiency of the system, and effectively reducing the overall operating cost. In addition, during the return stroke phase of the first rubber scraping strip 6 after completing the sludge scraping, the oblique counter-scraping plate 16 arranged between the protruding trusses 15 of the upper frame body 3 plays a role. The oblique counter-scraping plate 16 contacts the first rubber scraping strip 6 and uses its unique inclination angle and structural design to scrape the residual sludge attached to the surface of the first rubber scraping strip 6 in the opposite direction to the sludge storage bin 2, effectively avoiding the attachment and accumulation of residual sludge on other parts of the equipment, reducing the workload and frequency of equipment cleaning and maintenance, and at the same time helping to maintain the scraping performance of the first rubber scraping strip 6.

[0029] Second embodiment:

[0030] Figures 6-7The utility model discloses a high -efficient energy -conserving air flotation for oil -containing wastewater treatment, a plurality of springs 12 are fixedly connected with the first rubber scraping strip 6 close to the side of oblique counter -scraping board 16, and the plurality of springs 12 are horizontally equidistantly arranged, the second rubber scraping strip 13 is fixedly connected with the end of spring 12 away from the first rubber scraping strip 6, and the second rubber scraping strip 13 cooperates with oblique counter -scraping board 16, the wear -resistant outer layer 14 is fixedly connected with the end of second rubber scraping strip 13 close to oblique counter -scraping board 16, and the wear -resistant outer layer 14 is in contact with oblique counter -scraping board 16, a plurality of springs 12 that are horizontally equidistantly distributed are connected with the outside of first rubber scraping strip 6 through displacement truss 5, and the other end of spring 12 is connected with second rubber scraping strip 13, and before the first rubber scraping strip 6 back stroke and oblique counter -scraping board 16 contact, second rubber scraping strip 13 first contacts oblique counter -scraping board 16, because spring 12 has the elastic buffering effect, when second rubber scraping strip 13 and oblique counter -scraping board 16 contact, spring 12 can be elastically deformed according to the size of contact force, so that second rubber scraping strip 13 can produce elastic vibration when being subjected to the reverse scraping force of oblique counter -scraping board 16, thereby the shaking -off effect of the adhering matter on the surface of first rubber scraping strip 6 is enhanced, and the cleaning efficiency of residual sludge is further improved, and the wear -resistant outer layer 14 that is arranged at the end of second rubber scraping strip 13 close to oblique counter -scraping board 16 can effectively resist the wear effect of oblique counter -scraping board 16 on second rubber scraping strip 13 in the process that second rubber scraping strip 13 and oblique counter -scraping board 16 frequently contact, greatly prolongs the service life of second rubber scraping strip 13, reduces the maintenance cost of equipment and the replacement frequency of parts, and guarantees the long -term stable operation of equipment.

[0031] In combination with the current actual demand, the above-mentioned implementation manners adopted by the utility model do not limit the protection scope, various changes made within the knowledge range of the person skilled in the art without departing from the concept of the utility model still fall within the protection scope of the utility model.

Claims

1. A high-efficiency energy-saving air flotation for oil-containing wastewater treatment, characterized in that it comprises: Including air floatation machine processing warehouse (1), the front side of air floatation machine processing warehouse (1) is provided with sludge storage warehouse (2), the lower end of sludge storage warehouse (2) is provided with outlet valve mouth (18), the inner end of air floatation machine processing warehouse (1) is provided with a pair of outer side support (11), the inner end of outer side support (11) is installed with dissolved air pressure device (10), the upper end of air floatation machine processing warehouse (1) is fixedly connected with upper frame body (3) on both sides, two upper frame bodies (3) are installed with electric material conveying belt (4), the outer end of electric material conveying belt (4) is installed with two displacement trusses (5), the end of two displacement trusses (5) away from electric material conveying belt (4) is provided with first rubber scraping strip (6), the left and right inner walls of air floatation machine processing warehouse (1) are fixedly connected with sealed transparent inner warehouse (7), a plurality of light emitters (8) are fixedly connected on the inner wall of the left side of sealed transparent inner warehouse (7), a plurality of light receivers (9) are fixedly connected on the inner wall of the right side of sealed transparent inner warehouse (7).

2. The high-efficiency energy-saving air flotation for oil-containing wastewater treatment according to claim 1, characterized in that: The light emitters (8) and light receivers (9) correspond to each other horizontally, and the upper frame body (3) is provided with a protruding truss (15).

3. The high-efficiency energy-saving air flotation for oil-containing wastewater treatment according to claim 2, characterized in that: The inclined anti-scraping plate (16) is installed between the two protruding trusses (15), and the first rubber scraping strip (6) is fixedly connected with a plurality of springs (12) on the side close to the inclined anti-scraping plate (16).

4. The high-efficiency energy-saving air flotation for oil-containing wastewater treatment according to claim 3, characterized in that: The springs (12) are arranged horizontally and equidistantly, and the second rubber scraping strip (13) is fixedly connected to the end of the spring (12) away from the first rubber scraping strip (6).

5. The high-efficiency energy-saving air flotation for oil-containing wastewater treatment according to claim 4, characterized in that: The second rubber scraping strip (13) cooperates with the inclined anti-scraping plate (16), and the second rubber scraping strip (13) is fixedly connected with a wear-resistant outer layer (14) on the end close to the inclined anti-scraping plate (16).

6. The high-efficiency energy-saving air flotation for oil-containing wastewater treatment according to claim 5, characterized in that: The wear-resistant outer layer (14) is in contact with the inclined anti-scraping plate (16), and the electric material conveying belt (4) is connected with a motor (17).

7. The high-efficiency energy-saving air flotation for oil-containing wastewater treatment according to claim 6, characterized in that: The air floatation machine processing warehouse (1) is connected with a control terminal, and the control terminal is electrically connected between the motor (17) and the plurality of light emitters (8) and light receivers (9) through wires.

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