Multifunctional cover plate system for biological rotating disc

Abstract

The utility model discloses a multifunctional cover plate system for a biological rotating disc, which belongs to the technical field of sewage treatment equipment and comprises a cover plate, a rotating disc mounting tank or a bracket, an upper hydraulic spraying pipeline and a high-pressure nozzle, a bottom pneumatic perforated pipe, a pneumatic pipeline electromagnetic valve, a hydraulic pipeline electromagnetic valve, a quick connector, an air source, a water source, a water pump and a control system. The biological rotating disc integrates the functions of covering and dynamic flushing, effectively controls the biofilm formation microorganism quantity on the surface of the biological rotating disc, ensures the sewage treatment effect, controls the disordered growth of microorganisms on a membrane, and reduces the rotating disc load and the power system load; the biofilm formation microbial biomass can be controlled through flushing when the biological rotating disc runs, shutdown hoisting is not needed, and the adverse effect of stopping of the biological rotating disc on the sewage treatment process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment equipment technical field, concretely relates to a multifunctional cover plate system for biological rotating disc. BACKGROUND

[0002] As a common equipment of sewage treatment membrane process, biological rotating disc can improve treatment efficiency, increase biofilm quantity, promote long sludge age microbial attachment, and is widely used in the field of sewage treatment. However, biological rotating disc faces many problems in actual use: with the passage of time, the biofilm quantity is too thick, which can cause serious anaerobic inside the biofilm, insufficient effective microbial attachment area, and even the whole biofilm falls off when the microbial membrane is too thick in some biological rotating disc forms, affecting the sewage treatment effect and normal operation of the equipment; when the rotating disc is overhauled or fails, the underwater membrane continuously forms biofilm, but the biofilm on the water surface is relatively reduced, resulting in too large torque required when the equipment is restarted, affecting the normal start of the equipment, and even causing damage to the equipment and safety hazards.

[0003] It is urgent to design a multifunctional cover plate system for biological rotating disc, which can control the biofilm on the upper part of the biological rotating disc within the required thickness range, ensure the sewage treatment effect, control the disordered growth of microorganisms on the membrane, reduce the load of the rotating disc and the power system, and avoid the adverse effects of the rotating disc on sewage treatment. SUMMARY

[0004] The utility model discloses a multifunctional cover plate system for biological rotating disc, which can not only protect and cover the biological rotating disc, but also effectively control the biofilm thickness on the surface of the biological rotating disc through the shearing and impact of air and water force, ensure the sewage treatment effect, reduce the operation risk of the equipment, and is simple and effective to install and has high compatibility with the biological rotating disc process.

[0005] The specific technical scheme of the utility model is as follows:

[0006] A multifunctional cover plate system for biological rotating disc, characterized in that it comprises a cover plate, a rotating disc installation pool or support, an upper water force spraying pipeline and high-pressure nozzle, a bottom air force perforated pipe, an air force pipeline electromagnetic valve, a water force pipeline electromagnetic valve, a quick connector, an air source, a water source and water pump, and a control system. The multifunctional cover plate system integrates covering and dynamic washing functions, realizes real-time control of the biofilm thickness of the biological rotating disc through the synergistic effect of air force and water force, and the control system can automatically trigger the washing program based on the running time of the rotating disc or the data of the membrane thickness sensor, and intelligently regulate and control the biofilm thickness.

[0007] Further, the upper hydraulic spray pipeline and the high-pressure nozzle are fixed to the inside of the cover plate and located directly above the both sides of the rotating disc; the bottom pneumatic perforated pipe is fixed to the rotating disc installation pool or support and located at the bottom of the both sides of the rotating disc. The flushing ensures no dead angle and targetedly removes the biofilm in the disc sheet root and gap area.

[0008] Further, the upper hydraulic spray pipeline and the high-pressure nozzle are connected with the water pump through a quick connector. The quick connection supports modular disassembly and assembly, facilitating the maintenance of the rotating disc.

[0009] Further, the opening position of the bottom pneumatic perforated pipe corresponds to the disc sheet gap area of the rotating disc. The pneumatic force directly penetrates the membrane gap, solving the problem of biofilm in the root area which cannot be reached by hydraulic force.

[0010] Further, the high-pressure nozzle of the upper hydraulic spray pipeline is at an angle to the rotating direction of the rotating disc. The angle enhances the hydraulic shear force and improves the membrane layer peeling efficiency.

[0011] Further, the electromagnetic valve of the hydraulic pipeline controls the opening and closing of the water pump, and the electromagnetic valve of the pneumatic pipeline controls the opening and closing of the air source.

[0012] Further, the control system links the electromagnetic valves of the pneumatic pipeline and the hydraulic pipeline and controls the opening and closing according to the preset program.

[0013] Further, the air source and the water pump share the energy supply pipe network with the external sewage treatment system.

[0014] Further, the cover plate is made of glass fiber reinforced plastic or stainless steel, and the upper hydraulic spray pipeline and the bottom pneumatic perforated pipe are made of stainless steel.

[0015] The utility model has the following beneficial technical effects: the utility model integrates the functions of covering and dynamic flushing, effectively controls the amount of biofilm microorganisms on the surface of the rotating disc, ensures the sewage treatment effect, controls the disordered growth of microorganisms on the membrane, reduces the load of the rotating disc and the power system, can control the amount of biofilm microorganisms during the operation of the rotating disc, does not need to stop and hoist, and avoids the adverse effect of the stop of the rotating disc on the sewage treatment process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is an axial section view of the multifunctional cover plate system provided by the utility model.

[0017] Fig. 2 is an axial side view of the multifunctional cover plate system provided by the utility model.

[0018] Fig. 3 is a connection schematic view of the components of the multifunctional cover plate system provided by the utility model.

[0019] Reference numerals: 1-Cover plate, 2-Upper hydraulic spray pipe and high-pressure nozzle, 3-Turntable, 4-Turntable mounting pool or bracket, 5-Bottom pneumatic perforated pipe, 6-Pneumatic pipeline solenoid valve, 7-Hydraulic pipeline solenoid valve, 8-Quick-connect interface, 9-Air source, 10-Water source and water pump, 11-Control system. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, quantity, or position.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] As shown in Figures 1 to 3, the multifunctional cover plate system for biological rotating discs described in this utility model is used for sealing the rotating disc reactor and controlling the biofilm biomass. This effectively controls the biofilm biomass biomass on the surface of the rotating disc while protecting the biological rotating disc reactor. It prevents internal microbial anaerobic death, overall biofilm aging and detachment, or excessive biofilm biomass, which would increase the operating load of the biological rotating disc system and reduce safety risks.

[0024] The system mainly comprises a cover plate 1, an upper hydraulic spray pipeline and high-pressure nozzle 2, a rotating disc 3, a rotating disc installation pool or support 4, a bottom pneumatic perforated pipe 5, a pneumatic pipeline electromagnetic valve 6, a hydraulic pipeline electromagnetic valve 7, a quick connector 8, a gas source (with pressure) 9, a water source and water pump 10, and a control system 11.

[0025] The cover plate 1 is made of corrosion-resistant glass steel or stainless steel, is installed above the rotating disc 3, plays a basic protection and covering role for the rotating disc device, prevents external sundries from entering and gas from leaking, and provides an installation position for the upper hydraulic spray pipeline and high-pressure nozzle 2. The upper hydraulic spray pipeline and high-pressure nozzle 2 are fixed to the inner side of the cover plate 1 and are installed above both sides of the rotating disc 3 and are connected to the water source and water pump 10 through the quick connector 8. The design of the quick connector 8 makes the installation and dismounting of the upper hydraulic spray pipeline and high-pressure nozzle 2 convenient and fast, facilitates the maintenance and repair of the device without affecting the normal operation of the rotating disc 3, ensures that the overall dismounting of the cover plate 1 and the upper hydraulic spray pipeline and high-pressure nozzle 2 does not affect the hoisting process of the rotating disc 3, and guarantees the effective sealing of the rotating disc 3.

[0026] The spray angle of the upper hydraulic spray pipeline and high-pressure nozzle 2 is set in the opposite direction of the rotating angle of the rotating disc 3, and the spray distance can reach the root area of the disc sheet of the rotating disc 3. Such a design ensures that the high-pressure water spray can cover the disc sheet surface of the rotating disc 3 in all directions without dead angles, especially the root area, effectively removes the thick biofilm through the impact force of high-pressure water, prevents the biofilm from excessively accumulating at the root of the disc sheet, causes the anaerobic death of microorganisms at the root of the disc sheet, and the aging and falling of the biofilm, maintains the biofilm thickness within a reasonable range, guarantees the sewage treatment effect, and reduces the risk of equipment failure.

[0027] The upper hydraulic spray pipeline and high-pressure nozzle 2 and the bottom pneumatic perforated pipe 5 are made of corrosion-resistant high-strength stainless steel, are fixed on the rotating disc installation pool or support 4, and are installed at the bottom of both sides of the rotating disc 3. The opening position of the bottom pneumatic perforated pipe 5 is accurately controlled in the disc sheet gap area of the rotating disc 3, high-pressure gas is stably provided through the gas source (with pressure) 9, the opening and closing of the pneumatic flushing are controlled through the pneumatic pipeline electromagnetic valve 6, and the pneumatic shearing and impact on the biofilm in the disc sheet gap are realized. The pneumatic flushing can deeply enter the disc sheet inside which cannot be deeply entered by hydraulic action, effectively controls the biofilm amount of the microorganisms in the root area of the rotating disc, guarantees the uniformity of the biofilm of the rotating disc, avoids problems such as unstable operation of the rotating disc and excessive load of the power system caused by uneven biofilm, improves the overall performance and service life of the device.

[0028] The hydraulic pipeline electromagnetic valve 7 and the pneumatic pipeline electromagnetic valve 6 are connected with the control system 11, and the automation control of the hydraulic spraying and the pneumatic flushing process can be realized. According to the real-time monitored sewage treatment data and the rotating disc biofilm formation condition, the control system 11 sends a signal to control the opening and closing of the hydraulic pipeline electromagnetic valve 7 and the pneumatic pipeline electromagnetic valve 6 according to the preset control program, reasonably arranges the time and sequence of the pneumatic flushing and the hydraulic spraying, realizes the unified management and the time period operation of the multiple rotating disc devices. In this way, the biofilm thickness can be controlled in a reasonable range, the impact on the system caused by unified treatment can be avoided, the labor cost can be saved, the work efficiency can be improved, and the equipment operation energy consumption and the maintenance cost can be reduced.

[0029] In addition, the gas source (with pressure) 9 and the water source and the water pump 10 can be considered to be built together with the remaining related systems, so that the biochemical system is further simplified, the resource utilization rate is improved, and the equipment investment cost and the land occupation area are reduced.

[0030] The working principle and process of the utility model are as follows:

[0031] In the normal operation process of the biological rotating disc, as the biofilm amount gradually increases, when it is monitored that the biofilm thickness exceeds the set value, the control system 11 starts the corresponding flushing program. First, the control system 11 controls the opening of the hydraulic pipeline electromagnetic valve 7, and the high-pressure water provided by the water source and the water pump 10 is sprayed out through the upper hydraulic spraying pipeline and the high-pressure nozzle 2 to perform the hydraulic spraying flushing on the surface of the rotating disc 3. The high-pressure water impacts the surface of the disc surface of the rotating disc 3 at a certain angle and pressure, and the over-thick biofilm is stripped off and discharged out of the system along with the water flow. During the hydraulic spraying process, the opening of the hydraulic pipeline electromagnetic valve 7 can be adjusted according to the actual situation to control the spraying intensity and flow to achieve the best flushing effect.

[0032] At the same time or according to the need, the control system 11 can also control the opening of the pneumatic pipeline electromagnetic valve 6, and the high-pressure gas provided by the gas source (with pressure) 9 is sprayed out through the opening of the bottom pneumatic perforated pipe 5 to perform the pneumatic flushing on the disc gap at the bottom of the rotating disc 3. The impact force and shear force of the high-pressure gas can penetrate into the inside of the disc gap to remove the biofilm that is difficult to be removed by the water force, further improve the biofilm thickness control effect, and ensure the uniformity of the biofilm.

[0033] During the flushing process, the convenience of the quick connector 8 makes the disassembly and assembly of the upper hydraulic spraying pipeline and the high-pressure nozzle 2 not affect the normal operation of the rotating disc 3, ensures that the equipment does not need to be stopped during the flushing process, avoids the adverse effects of the biological rotating disc stop on the process and other aspects, and realizes the online flushing and biofilm control.

[0034] Through the combined flushing action of air and water, the present application can effectively control the biofilm thickness on the surface of the rotating biological contactor, prevent various problems caused by excessive biofilm thickness, improve the sewage treatment effect and equipment operation stability, reduce the load of the rotating biological contactor and power system, reduce the equipment operation risk and maintenance cost, and the installation method is simple and effective, and has high compatibility with the rotating biological contactor process, and has significant economic and environmental benefits.

[0035] In summary, the multifunctional cover plate system for a rotating biological contactor provided by the present application realizes effective control of the biofilm thickness on the rotating biological contactor through ingenious structure design and an automatic control system, solves the problems of excessive biofilm thickness, uneven biofilm, and difficult equipment restart that exist in the use of the existing rotating biological contactor, improves the sewage treatment efficiency and equipment operation reliability, and has wide application prospects and market value.

[0036] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments without departing from the principles and purposes of the present application within the scope of the present application. The protection scope of the present application is defined by the claims and their equivalent technical solutions.

Claims

1. A multi-functional cover plate system for a biological turntable, characterized by, The device comprises a cover plate (1), a rotary disc installation pool or support (4), an upper hydraulic spray pipeline and high-pressure nozzle (2), a bottom pneumatic perforating pipe (5), a pneumatic pipeline electromagnetic valve (6), a hydraulic pipeline electromagnetic valve (7), a quick connector (8), a gas source (9), a water source and water pump (10), and a control system (11).

2. The multi-functional cover plate system for a biological rotating disc according to claim 1, wherein, The upper hydraulic spray pipeline and high-pressure nozzle (2) are fixed to the inner side of the cover plate (1) and located right above the two sides of the rotary disc (3); the bottom pneumatic perforating pipe (5) is fixed to the rotary disc installation pool or support (4) and located at the bottom of the two sides of the rotary disc (3).

3. The multi-functional cover plate system for a biological rotating disc according to claim 2, wherein, The upper hydraulic spray pipeline and high-pressure nozzle (2) are quickly communicated with the water pump (10) through the quick connector (8).

4. The multi-functional cover plate system for a biological rotating disc according to claim 2, wherein, The opening position of the bottom pneumatic perforating pipe (5) corresponds to the disc gap area of the rotary disc (3).

5. The multi-functional cover plate system for a biological rotating disc according to claim 2, wherein The spraying direction of the high-pressure nozzle (2) of the upper hydraulic spray pipeline is at an angle with the rotating direction of the rotary disc (3).

6. The multi-functional cover system for a biological disk as claimed in claim 1, wherein The hydraulic pipeline electromagnetic valve (7) controls the opening and closing of the water pump (10), and the pneumatic pipeline electromagnetic valve (6) controls the opening and closing of the gas source (9).

7. The multi-functional cover plate system for a biological rotating disc according to claim 6, wherein The control system (11) links the pneumatic pipeline electromagnetic valve (6) and the hydraulic pipeline electromagnetic valve (7) and controls the opening and closing according to a preset program.

8. The multi-functional cover system for a biological disk according to claim 1, wherein, The gas source (9) and the water pump (10) share the energy supply pipeline network with the external sewage treatment system.

9. The multi-functional cover system for a biological disk as claimed in claim 1, wherein The material of the cover plate (1) is glass fiber reinforced plastic or stainless steel, and the materials of the upper hydraulic spray pipeline and high-pressure nozzle (2) and the bottom pneumatic perforating pipe (5) are stainless steel.

Images