CN115849582A - Stirring aeration equipment for sewage treatment - Google Patents
Stirring aeration equipment for sewage treatment Download PDFInfo
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- CN115849582A CN115849582A CN202211602987.5A CN202211602987A CN115849582A CN 115849582 A CN115849582 A CN 115849582A CN 202211602987 A CN202211602987 A CN 202211602987A CN 115849582 A CN115849582 A CN 115849582A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The application discloses sewage treatment is with stirring aeration equipment includes: the base plate is arranged above the sewage tank; the transmission shaft is rotatably arranged on the base plate and is suitable for extending downwards into the sewage tank; a flow guide channel is axially arranged on the transmission shaft; the impeller is fixedly arranged at the lower end of the transmission shaft; the power source is suitable for driving the transmission shaft to rotate; the air source is connected with the transmission shaft and is suitable for supplying air to the sewage pool through the flow guide channel; the valve assembly is arranged on the transmission shaft and is suitable for controlling the air supply amount of the flow guide channel; and the rotating speed of the transmission shaft is positively correlated with the opening degree of the valve component. Has the advantages of integration of stirring and aeration, convenient control and full mixing.
Description
Technical Field
The application relates to the field of sewage treatment, in particular to a stirring aeration device.
Background
In recent years, the discharge amount of industrial sewage and domestic sewage in China is a trend of increasing year by year, and the sewage which is not treated or cannot be treated properly is directly discharged into the nature, so that the environmental sanitation is seriously influenced, and the water safety of people is threatened. In order to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage, the sewage needs to be purified, and the process is sewage treatment. Sewage treatment is becoming an increasingly important link in environmental protection.
In the sewage purification treatment, stirring is one of the key processes, and is used for stirring and mixing substances such as sewage, medicaments and the like; in the stirring process, an aeration process is often needed for fully mixing the sewage and increasing the contact area of the sewage and oxygen, thereby promoting the effective link of sewage biodegradation. In the process, a stirrer, an aerator and a medicine adding machine are required to be equipped.
However, in the existing sewage purification treatment, the following problems are generally existed: (1) Various devices such as a stirrer, an aerator, a medicine adding machine and the like need to be equipped, so that the cost of the sewage treatment system is high and the maintenance is inconvenient; (2) The stirrer, the aerator and the medicine adding machine need to be respectively controlled according to the process steps, and a great obstacle exists in the cooperative control of various devices; (3) The processes of stirring, aeration and medicine addition are independently carried out, and cannot be coordinated, so that the sewage and the medicine are not fully mixed.
Therefore, how to improve the existing sewage treatment equipment to overcome the above problems is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
An object of this application is to provide a collect stirring, aeration in an organic whole, and control is convenient, mixes abundant stirring aeration equipment for sewage treatment.
In order to achieve the above purposes, the technical scheme adopted by the application is as follows: a stirring aeration apparatus for sewage treatment, comprising:
the base plate is arranged above the sewage pool;
the transmission shaft is rotatably arranged on the base plate and is suitable for extending downwards into the sewage tank; a flow guide channel is axially arranged on the transmission shaft;
the impeller is fixedly arranged at the lower end of the transmission shaft;
the power source is suitable for driving the transmission shaft to rotate;
the gas source is connected with the transmission shaft and is suitable for supplying gas to the sewage pool through the flow guide channel;
the valve assembly is arranged on the transmission shaft and is suitable for controlling the air supply amount of the flow guide channel; the rotating speed of the transmission shaft is positively correlated with the opening degree of the valve component;
the valve assembly comprises a valve body and a valve core, a valve passage is arranged in the valve body, the valve body is fixedly connected with the transmission shaft, the valve passage is communicated with the flow guide passage, and the valve core is movably arranged in the valve body and is suitable for opening and closing the valve passage; the valve core is provided with an eccentric mass, the valve core has a motion trend along the horizontal direction, the transmission shaft rotates to be suitable for generating centrifugal force on the valve core and drives the valve core to move towards the direction far away from the rotation center, the valve channel is further opened, and the rotation speed of the transmission shaft is positively correlated with the opening size of the valve channel.
Furthermore, the valve core is arranged in the valve body in a sliding manner along the horizontal direction, the valve core comprises a separation section, an extension section and a balancing weight, the separation section is suitable for invading the valve channel and controlling the opening size of the valve channel, one end of the extension section is connected with the separation section, the other end of the extension section extends towards the eccentric direction, and the balancing weight is arranged at the other end of the extension section; an elastic part is arranged between the valve body and the valve core, the elastic part is suitable for forcing the valve core to slide towards the direction of a rotation center and enabling the separation section to close the valve channel, and the centrifugal force generated by the rotation of the transmission shaft to the valve core is suitable for overcoming the elastic force of the elastic part and driving the valve core to slide towards the direction far away from the rotation center and enabling the separation section to open the valve channel.
Furthermore, the counterweight block is arranged on the extension section in a replaceable manner, and the valve core is suitable for being configured with counterweight blocks with different masses or different quantities and is used for matching the opening degree of the valve component and the rotating speed relation of the transmission shaft.
Furthermore, the valve body comprises a lower valve body and an upper valve body, the valve channel is arranged on the lower valve body and the upper valve body in a penetrating manner along the vertical direction and is positioned at the rotation center, a separation chamber is arranged at the center of the lower valve body, the valve channel is positioned in the separation chamber, a counterweight chamber is arranged at the eccentric position of the lower valve body, the separation section is arranged in the separation chamber in a sliding manner, the extension section penetrates through the separation chamber in a sealing manner and enters the counterweight chamber, the counterweight is suitable for being placed on the extension section entering the counterweight chamber, and the upper valve body is covered on the separation chamber in a sealing manner;
an openable cover body is arranged above the counterweight chamber, an upright post is arranged at the other end of the extension section along the vertical direction, the counterweight block is suitable for being sleeved on the upright post, and the counterweight block is suitable for being replaced or increased or decreased after the cover body is opened;
the valve body is also provided with a ball, and the valve core is suitable for sliding on the ball.
Furthermore, the valve cores are provided with a plurality of valve cores and are uniformly distributed along the circumferential direction;
the valve body is further provided with a plurality of idler wheels, the idler wheels are evenly distributed along the circumferential direction, a circular guide rail is fixedly arranged on the base plate, and the idler wheels are suitable for rolling along the circular guide rail when the transmission shaft rotates.
Further, still include and add the medicine subassembly, it connects the transmission shaft to add the medicine subassembly, and be suitable for through the water conservancy diversion passageway is to the effluent water sump supply medicine.
Furthermore, the medicine adding component comprises a cylinder body, a piston and a driving mechanism, wherein an extracting pipe and a liquid sending pipe are connected to the cylinder body, a first one-way valve which can supply the medicine to flow into the cylinder body is arranged on the extracting pipe, a second one-way valve which can supply the medicine to flow out of the cylinder body is arranged on the liquid sending pipe, the extracting pipe is connected with a medicine box, the liquid sending pipe is connected with the flow guide channel, and the driving mechanism is suitable for driving the piston to slide in the cylinder body; when the driving mechanism pulls the piston, the medicament enters the cylinder body from the medicament box through the liquid extracting pipe and the first one-way valve, and when the driving mechanism pushes the piston, the medicament enters the diversion channel from the cylinder body through the liquid sending pipe and the second one-way valve.
Furthermore, the driving mechanism comprises a base, a screw rod, a guide rod, a sliding block and a medicine adding motor, the base is fixedly arranged, the screw rod extends along the sliding direction of the piston and is rotatably arranged on the base, the guide rod is fixedly arranged on the base and is parallel to the screw rod, the sliding block is in threaded connection with the screw rod and is suitable for sliding along the guide rod, and the medicine adding motor is suitable for driving the screw rod to rotate and further driving the sliding block to slide; a bridging plate extends out of the piston and is fixedly connected with the sliding block;
the flow guide channel penetrates through the upper end of the transmission shaft, the upper end of the transmission shaft is connected with a rotary joint in a sealing and rotating mode, a support is fixedly arranged on the base plate, the rotary joint is fixedly installed on the support, an air passage is formed in the rotary joint, and the air passage is connected with the air source through an air pipe;
the air flue penetrates through the upper end of the rotary joint, the upper end of the rotary joint is fixedly connected with a liquid delivery end cover in a sealing mode, and the liquid delivery pipe penetrates through the liquid delivery end cover and is communicated with the flow guide channel.
Further, the impeller includes hyperboloid agitator disk, water conservancy diversion rib and shearing rib, the water conservancy diversion rib have many and be the heliciform distribute in hyperboloid agitator disk upper surface, hyperboloid agitator disk below has the negative pressure chamber, water conservancy diversion passageway intercommunication the negative pressure chamber, the shearing rib has a plurality of and evenly distributed in hyperboloid agitator disk lower surface, the shearing rib is followed the negative pressure chamber outwards extends and surpasses hyperboloid agitator disk side.
Further, an air outlet disc is fixedly arranged at the lower end of the transmission shaft, the air outlet disc is communicated with the flow guide channel, and a plurality of air outlet holes are uniformly formed in the air outlet disc;
the shearing rib comprises a sharp head section, an inclined extension section and a horizontal section, the top of the sharp head section is sharp, the sharp head section extends upwards to enter the negative pressure cavity, the horizontal section extends outwards to exceed the side surface of the hyperboloid stirring disc, and the inclined extension section is connected with the sharp head section and the horizontal section;
the lower part of the horizontal section is in a sawtooth shape;
the shearing ribs are distributed in a spiral shape, and the shearing ribs and the flow guide ribs have the same spiral direction.
Compared with the prior art, the beneficial effect of this application lies in: firstly, this scheme is integrated stirring function and aeration function on same device, has compact structure, simple to operate, maintains portably, advantage with low costs. Secondly, the scheme utilizes the flow guide channel of the transmission shaft to supply air, realizes one shaft with multiple purposes, and further simplifies the structure of the device; and the transmission shaft directly conveys gas to the impeller, so that the impeller can stir the gas in time, the gas can be efficiently mixed in sewage, and the purpose of full mixing is achieved. More importantly, the valve assembly is arranged, the valve core in the valve assembly obtains centrifugal force by means of rotation of the transmission shaft, and then the opening degree of the valve assembly can be automatically controlled according to the rotating speed of the transmission shaft, so that self-adaptation of air supply quantity is achieved.
Drawings
Fig. 1 is a perspective view of a preferred embodiment according to the present application.
Fig. 2 is a half sectional view of a preferred embodiment according to the present application.
Fig. 3 is a half sectional view of an impeller according to a preferred embodiment of the present application.
Fig. 4 is a schematic view of a modified arrangement of shear ribs in accordance with a preferred embodiment of the present application.
FIG. 5 is a schematic illustration of the structure of a shear rib according to a preferred embodiment of the present application.
Fig. 6 is a schematic view of a preferred embodiment according to the present application with modified shear ribs.
FIG. 7 is an enlarged partial view taken at A in FIG. 1, in accordance with a preferred embodiment of the present application.
FIG. 8 is a perspective view of a valve assembly according to a preferred embodiment of the present application.
Fig. 9 is an exploded schematic view of a valve assembly according to a preferred embodiment of the present application.
FIG. 10 is a half sectional view (closed state) of a valve assembly according to one preferred embodiment of the present application.
FIG. 11 is a top view of a valve assembly according to a preferred embodiment of the present application with the upper valve body and cover concealed (closed state).
FIG. 12 is a half sectional view (open state) of a valve assembly according to one preferred embodiment of the present application.
FIG. 13 is a top view of a valve assembly according to a preferred embodiment of the present application with the upper valve body and cover concealed (open).
FIG. 14 is a schematic view of a valve assembly according to a preferred embodiment of the present application in the event of a replacement of a counterweight.
Fig. 15 is a schematic diagram of a valve cartridge employing gravity as a return force in accordance with a preferred embodiment of the present application.
Figure 16 is a schematic view of the connection of the swivel joint, stent and trachea according to a preferred embodiment of the present application.
FIG. 17 is a schematic view of the connection of a liquid delivery end cap and a liquid delivery tube according to a preferred embodiment of the present application.
Fig. 18 is a perspective view of a medication delivery assembly according to a preferred embodiment of the present application.
FIG. 19 is a schematic view of an installation according to a preferred embodiment of the present application.
In the figure: 100. a sewage tank; 200. a kit; 1. a substrate; 11. a support; 2. a drive shaft; 21. a flow guide channel; 22. an air outlet disc; 221. an air outlet; 3. an impeller; 30. a negative pressure chamber; 31. a hyperboloid agitator disc; 32. a flow guide rib; 33. a shear rib; 331. a tip section; 332. an inclined extension section; 333. a horizontal segment; 4. a power source; 41. a power motor; 42. a reduction gearbox; 43. a driving gear; 44. a driven gear; 5. a gas source; 51. an air tube; 52. a rotating joint; 521. an airway; 6. a valve assembly; 61. a valve body; 610. a valve passage; 611. a lower valve body; 612. an upper valve body; 613. a compartment; 614. a counterweight chamber; 615. a cover body; 616. a ball bearing; 617. a roller; 618. a circular guide rail; 62. a valve core; 621. a separation section; 622. an extension section; 623. a counterweight block; 624. a column; 63. an elastic member; 7. a dosing assembly; 71. a barrel; 72. a piston; 721. a bridge plate; 73. a drive mechanism; 731. a base; 732. a screw rod; 733. a guide bar; 734. a slider; 735. a medicine adding motor; 74. a liquid pumping pipe; 75. a liquid delivery pipe; 76. a first check valve; 77. a second one-way valve; 78. and a liquid feeding end cover.
Detailed Description
The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments described below or between the technical features may form a new embodiment.
In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations and positional relationships based on the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present application.
It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1 to 19, a preferred embodiment of the present application includes:
and a base plate 1, wherein the base plate 1 is arranged above the sewage tank 100.
The transmission shaft 2 is rotatably arranged on the base plate 1 and is suitable for extending downwards to enter the sewage tank 100; the transmission shaft 2 is provided with a flow guide channel 21 along the axial direction.
The power source 4 is suitable for driving the transmission shaft 2 to rotate; the present embodiment adopts a conventional power motor 41, a reduction gearbox 42, a driving gear 43 and a driven gear 44 to form a combined mechanism as the power source 4.
And the air source 5 is connected with the transmission shaft 2, and is suitable for supplying air to the sewage tank 100 through the diversion channel 21. The air pump station of the preferred concentrated air feed of air supply 5 in this embodiment replaces conventional independent air-blower air feed, and air pump station can pass through trachea 51 and connect a plurality of stirring aeration equipment, supplies air to a plurality of effluent water ponds 100, has simple structure, and control is convenient, advantage with low costs.
The valve assembly 6 is arranged on the transmission shaft 2, and is suitable for controlling the air supply quantity of the flow guide channel 21; and the rotating speed of the transmission shaft 2 is positively correlated with the opening degree of the valve assembly 6.
And the medicine adding assembly 7 is connected with the transmission shaft 2, and is suitable for supplying medicine to the sewage pool 100 through the diversion channel 21.
The embodiment integrates the stirring function, the aeration function and the medicine adding function on the same device, and has the advantages of compact structure, convenience in installation, simplicity and convenience in maintenance and low cost. In addition, in the embodiment, the guide channel 21 of the transmission shaft 2 is used for air supply and medicine addition, so that the multi-purpose one shaft is realized, and the structure of the device is further simplified. And the transmission shaft 2 directly conveys gas and medicament to the impeller 3, so that the impeller 3 can timely stir the gas and the medicament, the gas and the medicament can be efficiently mixed in sewage, and the purpose of full mixing is achieved.
It is known that in the sewage purification treatment, the rotating speed requirements of the stirring device and the aeration amount requirements of the aeration device are different according to different sewage and different treatment stages. For example, when the viscosity of the wastewater is high, a high rotation speed and a high aeration rate are required to sufficiently mix air, a chemical agent, the wastewater and other substances, and otherwise, a low rotation speed and a low aeration rate are required. According to the summary of the actual requirements, the rotating speed requirement of the stirring equipment and the aeration quantity requirement of the aeration equipment are in positive correlation.
Therefore, based on the integrated stirring aeration device of this embodiment, the above requirements can be satisfied only by setting the rotation speed of the transmission shaft 2 to be positively correlated with the opening degree of the valve assembly 6. In order to achieve the above function, it is easy to think that the valve assembly 6 is designed as a solenoid valve and is integrated with the power motor 41 into the same control system, and the control system can dynamically adjust the opening degree of the solenoid valve according to the rotating speed of the power motor 41. Although the above electric embodiment can realize the above functions, the electric embodiment has the disadvantage of high cost, and the sewage tank 100 has a large environmental gap, and the relatively precise component, such as the electromagnetic valve, is used in the sewage tank 100 with a severe environment, so that the service life is greatly reduced, and the use and maintenance cost is further increased.
Based on this, this application has carried out key design to valve gate assembly 6 and has improved, adopts pure mechanical structure to utilize the centrifugation principle, realized the self-adaptation regulation of its aperture, specific structure is as follows:
as shown in fig. 8 to 15, the valve assembly 6 includes a valve body 61 and a valve core 62, the valve body 61 has a valve passage 610 therein, the valve body 61 is fixedly connected to the transmission shaft 2, the valve passage 610 is communicated with the diversion passage 21, and the valve core 62 is movably disposed in the valve body 61 and is adapted to open and close the valve passage 610; the valve core 62 has an eccentric mass, and the valve core 62 has a movement trend along the horizontal direction, the rotation of the transmission shaft 2 is suitable for generating a centrifugal force (belonging to a virtual force) on the valve core 62, and drives the valve core 62 to move towards a direction far away from the rotation center, so as to open the valve channel 610, and the rotation speed of the transmission shaft 2 is positively correlated with the opening size of the valve channel 610, i.e. the larger the rotation speed, the larger the opening is.
Various configurations of the valve element 62 driven by centrifugal force can be realized, and the present embodiment is merely illustrative of a preferred embodiment. As shown in fig. 8 to 14, the valve core 62 is slidably disposed in the valve body 61 along a horizontal direction, as can be seen from fig. 11 and 13, the valve core 62 includes a separation section 621, an extension section 622 and a weight block 623, the separation section 621 is adapted to intrude into the valve passage 610 and control the opening size of the valve passage 610, one end of the extension section 622 is connected to the separation section 621, the other end of the extension section 622 extends toward an eccentric direction, and the weight block 623 is disposed at the other end of the extension section 622; an elastic member 63 is arranged between the valve body 61 and the valve core 62, the elastic member 63 is suitable for forcing the valve core 62 to slide towards the direction of the rotation center and enabling the partition 621 to close the valve passage 610, and the centrifugal force generated by the rotation of the transmission shaft 2 on the valve core 62 is suitable for overcoming the elastic force of the elastic member 63 and driving the valve core 62 to slide towards the direction away from the rotation center and enabling the partition 621 to open the valve passage 610; wherein the partition 621 fully closes the valve passage 610 in fig. 11 and the partition 621 fully opens the valve passage 610 in fig. 13.
It can be seen that in the above-described structure of the valve assembly 6, the elastic force of the elastic member 63 is introduced as a restoring force of the valve core 62 closing the valve passage 610. Obviously, other external forces may be used as the above-mentioned restoring force. As shown in fig. 15, when the valve core 62 has a tendency to move in a vertical direction relative to the valve body 61, the valve core 62 can slide obliquely downward against gravity as a restoring force when the transmission shaft 2 is not rotated, for closing the valve passage 610, and slide obliquely upward against gravity when the transmission shaft 2 is rotated, for opening the valve passage 610.
As shown in fig. 14, a key design of this embodiment is that the weight 623 is disposed on the extension 622 in a replaceable manner, and the valve core 62 is suitable for disposing different weights or different numbers of weight 623 for matching the opening of the valve assembly 6 with the rotation speed of the transmission shaft 2. Although the rotation speed of the transmission shaft 2 is positively correlated with the opening of the valve assembly 6, for different sewages and different treatment stages, different requirements also exist for the aeration amount at the same rotation speed of the transmission shaft 2, that is, the requirement for the opening of the valve assembly 6 is different, so that the opening of the valve assembly 6 under the same condition can be changed by adjusting the number or the quality of the balancing weights 623, and the applicability of the device is improved.
As shown in fig. 8 to 13, in consideration of processing and assembly, the valve body 61 is divided into two parts, namely, a lower valve body 611 and an upper valve body 612, a valve passage 610 is vertically arranged on the lower valve body 611 and the upper valve body 612 in a penetrating manner and is positioned at the center of rotation, a separation chamber 613 is arranged at the center of the lower valve body 611, the valve passage 610 is positioned in the separation chamber 613, a counterweight chamber 614 is arranged at an eccentric position of the lower valve body 611, the separation chamber 621 is arranged in the separation chamber 613 in a sliding manner, an extension 622 penetrates through the separation chamber 613 and enters the counterweight chamber 614 in a sealing manner, a counterweight 623 is suitable for being placed on the extension 622 entering the counterweight chamber 614, and the upper valve body 612 is sealed and jointed on the separation chamber 613; as shown in fig. 14, in order to facilitate replacement of the weight 623, an openable cover 615 is disposed above the weight chamber 614, an upright column 624 is disposed at the other end of the extension section 622 along the vertical direction, the weight 623 is adapted to be sleeved on the upright column 624, and the weight 623 is adapted to be replaced or increased or decreased after the cover 615 is opened.
As shown in fig. 10 and 12, in order to reduce friction when the valve spool 62 slides and thereby reduce wear, the valve body 61 is further provided with a ball 616, and the valve spool 62 is adapted to slide on the ball 616.
In consideration of the stability of the operation of the present embodiment (mainly considering the rotational stability), as shown in fig. 7 to 14, the present embodiment symmetrically provides two spools 62 for balancing the weight; the valve body 61 is further provided with a plurality of rollers 617, the rollers 617 are uniformly distributed along the circumferential direction, the base plate 1 is fixedly provided with a circular guide rail 618, and the rollers 617 are suitable for rolling along the circular guide rail 618 when the transmission shaft 2 rotates, and are equivalent to a rotating bearing of the valve component 6, so that the rotating stability of the valve component is ensured.
The medicine adding component 7 and the air source 5 of the present embodiment share the diversion channel 21, and the air source 5 has a requirement for tightness of the diversion channel 21 when supplying air, and the air pressure in the diversion channel 21 is relatively high (higher than atmospheric pressure) when supplying air, so that the medicine adding component 7 is difficult to deliver medicine by instillation or pumping.
Based on this, the medicine adding component 7 of the present embodiment performs medicine delivery by a pressure injection method, specifically, based on the principle of a syringe injector, performs liquid suction by negative pressure, and performs liquid delivery by positive pressure. As shown in fig. 18, the medicine adding assembly 7 of the present embodiment includes a cylinder 71, a piston 72 and a driving mechanism 73, a liquid extracting tube 74 and a liquid sending tube 75 are connected to the cylinder 71, a first check valve 76 for allowing medicine to flow into the cylinder 71 is disposed on the liquid extracting tube 74, a second check valve 77 for allowing medicine to flow out of the cylinder 71 is disposed on the liquid sending tube 75, the liquid extracting tube 74 is connected to the medicine tank 200, the liquid sending tube 75 is connected to the diversion channel 21, and the driving mechanism 73 is adapted to drive the piston 72 to slide in the cylinder 71; when the driving mechanism 73 pulls the piston 72, the medicine is introduced from the medicine tank 200 into the cylinder 71 through the liquid extracting tube 74 and the first check valve 76, and when the driving mechanism 73 pushes the piston 72, the medicine is introduced from the cylinder 71 into the guide passage 21 through the liquid sending tube 75 and the second check valve 77. Wherein the combined arrangement of the first check valve 76 and the second check valve 77 can realize the one-way flow of the medicine, and the second check valve 77 also has the function of preventing the gas from entering the cylinder 71.
More specifically, as shown in fig. 18, the driving mechanism 73 of the present embodiment adopts a screw-and-slider structure (the same as the operating principle of the injection pump), and includes a base 731, a screw 732, a guide rod 733, a slider 734, and a drug-adding motor 735, the base 731 is fixedly disposed, the screw 732 extends along the sliding direction of the piston 72 and is rotatably disposed on the base 731, the guide rod 733 is fixedly disposed on the base 731 and is parallel to the screw 732, the slider 734 is in threaded connection with the screw 732 and is adapted to slide along the guide rod 733, and the drug-adding motor 735 is adapted to drive the screw 732 to rotate, and further drive the slider 734 to slide; a bridging plate 721 extends from the piston 72, and the bridging plate 721 is fixedly connected to the slider 734. The driving mechanism 73 with the structure can realize quantitative medicine adding and is convenient to control.
As shown in fig. 2, 7 and 16, in the embodiment, the diversion channel 21 penetrates through the upper end of the transmission shaft 2, the upper end of the transmission shaft 2 is connected with the rotary joint 52 in a sealing and rotating manner, the base plate 1 is fixedly provided with the bracket 11, the rotary joint 52 is fixedly installed on the bracket 11, the rotary joint 52 is provided with the air passage 521, and the air passage 521 is connected with the air source 5 through the air pipe 51; as shown in fig. 2, 7 and 17, in the present embodiment, the air duct 521 penetrates through the upper end of the rotary joint 52, the upper end of the rotary joint 52 is fixedly connected with the liquid feeding end cap 78 in a sealing manner, and the liquid feeding pipe 75 penetrates through the liquid feeding end cap 78 and is communicated with the flow guide channel 21.
In addition, the impeller 3 structure also plays a crucial role for the mixing effect. As shown in fig. 3 to 6, the impeller 3 of the present embodiment adopts a hyperboloid structure, which includes a hyperboloid stirring disc 31, a flow guiding rib 32 and a shearing rib 33, wherein the flow guiding rib 32 has a plurality of strips and is spirally distributed on the upper surface of the hyperboloid stirring disc 31, a negative pressure chamber 30 is arranged below the hyperboloid stirring disc 31, the flow guiding channel 21 communicates with the negative pressure chamber 30, the shearing rib 33 has a plurality of strips and is uniformly distributed on the lower surface of the hyperboloid stirring disc 31, and the shearing rib 33 extends outwards from the negative pressure chamber 30 and exceeds the side surface of the hyperboloid stirring disc 31. The flow guide ribs 32 are matched with the hyperboloid stirring disc 31 to mainly play a role in stirring. The shearing ribs 33 can divide the bubbles formed in the negative pressure cavity 30, so that the volume of the bubbles is smaller, oxygen in the bubbles is more easily dissolved in the sewage, and the wide-area distribution of the bubbles in a liquid phase space is realized; meanwhile, the shearing ribs 33 can effectively stir the mud-water mixture in the pool, assist the hyperboloid stirring disc 31 and the flow guide ribs 32 in stirring, and enhance the stirring effect. In addition, as shown in fig. 4, the shearing ribs 33 are distributed in a spiral shape, and the shearing ribs 33 and the flow guide ribs 32 have the same spiral direction, so as to reduce the stirring resistance.
In order to further improve the 'aeration' effect, the embodiment also carries out the following three improvements:
(1) As shown in fig. 2, an air outlet disc 22 is fixedly arranged at the lower end of the transmission shaft 2, the air outlet disc 22 is communicated with the diversion channel 21, and a plurality of air outlet holes 221 are uniformly formed in the air outlet disc 22; the air outlet disc 22 can divide a single air flow of the diversion channel 21 into a plurality of air flows to form smaller air bubbles, so that the aeration effect is improved.
(2) As shown in fig. 5, the shearing rib 33 is designed into a pointed section 331, an inclined section 332 and a horizontal section 333, wherein the top of the pointed section 331 is sharp, the pointed section 331 extends upwards into the negative pressure cavity 30, the horizontal section 333 extends outwards beyond the side surface of the hyperboloid stirring disc 31, and the inclined section 332 connects the pointed section 331 and the horizontal section 333; wherein, the tip section 331 can further puncture and divide the bubbles that come out of the air outlet disc 22 in time to form smaller bubbles, and the horizontal section 333 extends and sets up and can stir the bubbles to wider region, promotes the aeration effect once more.
(3) As shown in fig. 6, the horizontal section 333 is designed to be serrated below; the air bubbles can be further punctured and divided, and the aeration effect is improved.
The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and such changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.
Claims (10)
1. The utility model provides a sewage treatment is with stirring aeration equipment which characterized in that includes:
the base plate is arranged above the sewage pool;
the transmission shaft is rotatably arranged on the base plate and is suitable for extending downwards into the sewage tank; a flow guide channel is axially arranged on the transmission shaft;
the impeller is fixedly arranged at the lower end of the transmission shaft;
the power source is suitable for driving the transmission shaft to rotate;
the gas source is connected with the transmission shaft and is suitable for supplying gas to the sewage pool through the flow guide channel;
the valve assembly is arranged on the transmission shaft and is suitable for controlling the air supply amount of the flow guide channel; the rotating speed of the transmission shaft is positively correlated with the opening degree of the valve component;
the valve assembly comprises a valve body and a valve core, a valve passage is arranged in the valve body, the valve body is fixedly connected with the transmission shaft, the valve passage is communicated with the flow guide passage, and the valve core is movably arranged in the valve body and is suitable for opening and closing the valve passage; the valve core is provided with an eccentric mass and has a movement trend along the horizontal direction, the transmission shaft rotates to be suitable for generating centrifugal force on the valve core and drives the valve core to move towards the direction far away from the rotation center so as to open the valve channel, and the rotation speed of the transmission shaft is positively correlated with the opening size of the valve channel.
2. The stirring aeration apparatus for sewage treatment according to claim 1, wherein: the valve core is arranged in the valve body in a sliding mode along the horizontal direction and comprises a separation section, an extension section and a balancing weight, the separation section is suitable for invading the valve channel and controlling the opening size of the valve channel, one end of the extension section is connected with the separation section, the other end of the extension section extends towards the eccentric direction, and the balancing weight is arranged at the other end of the extension section; an elastic part is arranged between the valve body and the valve core, the elastic part is suitable for forcing the valve core to slide towards the direction of a rotation center and enabling the separation section to close the valve channel, and the centrifugal force generated by the rotation of the transmission shaft to the valve core is suitable for overcoming the elastic force of the elastic part and driving the valve core to slide towards the direction far away from the rotation center and enabling the separation section to open the valve channel.
3. The stirring aeration apparatus for sewage treatment according to claim 2, wherein: the counterweight block is arranged on the extension section in a replaceable manner, and the valve core is suitable for being configured with counterweight blocks with different masses or different quantities and is used for matching the opening degree of the valve component and the rotating speed relation of the transmission shaft.
4. The stirring aeration apparatus for sewage treatment according to claim 3, wherein: the valve body comprises a lower valve body and an upper valve body, a valve channel penetrates through the lower valve body and the upper valve body along the vertical direction and is positioned at the rotation center, a separation chamber is arranged at the center of the lower valve body, the valve channel is positioned in the separation chamber, a counterweight chamber is arranged at the eccentric position of the lower valve body, a separation section is arranged in the separation chamber in a sliding manner, an extension section penetrates through the separation chamber in a sealing manner and enters the counterweight chamber, the counterweight block is suitable for being placed on the extension section entering the counterweight chamber, and the upper valve body covers the separation chamber in a sealing manner;
an openable cover body is arranged above the counterweight chamber, an upright post is arranged at the other end of the extension section along the vertical direction, the counterweight block is suitable for being sleeved on the upright post, and the counterweight block is suitable for being replaced or increased or decreased after the cover body is opened;
the valve body is also provided with a ball, and the valve core is suitable for sliding on the ball.
5. The stirring aeration apparatus for sewage treatment according to claim 2, wherein: the valve cores are provided with a plurality of valve cores and are uniformly distributed along the circumferential direction;
the valve body is further provided with a plurality of idler wheels, the idler wheels are evenly distributed along the circumferential direction, a circular guide rail is fixedly arranged on the base plate, and the idler wheels are suitable for rolling along the circular guide rail when the transmission shaft rotates.
6. The stirring aeration apparatus for sewage treatment according to claim 1, wherein: still including adding the medicine subassembly, it connects to add the medicine subassembly the transmission shaft to be suitable for through the water conservancy diversion passageway is to the effluent water sump supplies medicine.
7. The stirring aeration apparatus for sewage treatment according to claim 6, wherein: the drug adding component comprises a cylinder body, a piston and a driving mechanism, wherein an extracting pipe and a liquid feeding pipe are connected to the cylinder body, a first one-way valve capable of allowing a drug to flow into the cylinder body is arranged on the extracting pipe, a second one-way valve capable of allowing the drug to flow out of the cylinder body is arranged on the liquid feeding pipe, the extracting pipe is connected with a drug box, the liquid feeding pipe is connected with the flow guide channel, and the driving mechanism is suitable for driving the piston to slide in the cylinder body; when the driving mechanism pulls the piston, the medicament enters the cylinder body from the medicament box through the liquid extracting pipe and the first one-way valve, and when the driving mechanism pushes the piston, the medicament enters the diversion channel from the cylinder body through the liquid sending pipe and the second one-way valve.
8. The stirring aeration apparatus for sewage treatment according to claim 7, wherein: the driving mechanism comprises a base, a screw rod, a guide rod, a sliding block and a medicine adding motor, the base is fixedly arranged, the screw rod extends along the sliding direction of the piston and is rotatably arranged on the base, the guide rod is fixedly arranged on the base and is parallel to the screw rod, the sliding block is in threaded connection with the screw rod and is suitable for sliding along the guide rod, and the medicine adding motor is suitable for driving the screw rod to rotate and further driving the sliding block to slide; a bridging plate extends out of the piston and is fixedly connected with the sliding block;
the flow guide channel penetrates through the upper end of the transmission shaft, the upper end of the transmission shaft is connected with a rotary joint in a sealing and rotating mode, a support is fixedly arranged on the base plate, the rotary joint is fixedly installed on the support, an air passage is formed in the rotary joint, and the air passage is connected with the air source through an air pipe;
the air flue penetrates through the upper end of the rotary joint, the upper end of the rotary joint is fixedly connected with a liquid delivery end cover in a sealing mode, and the liquid delivery pipe penetrates through the liquid delivery end cover and is communicated with the flow guide channel.
9. The stirring aerator for sewage treatment as claimed in claim 1, wherein: the impeller includes hyperboloid agitator disk, water conservancy diversion rib and shearing rib, the water conservancy diversion rib have many and be the heliciform distribute in hyperboloid agitator disk upper surface, hyperboloid agitator disk below has the negative pressure chamber, water conservancy diversion passageway intercommunication the negative pressure chamber, the shearing rib has a plurality of and evenly distributed in hyperboloid agitator disk lower surface, the shearing rib is followed the negative pressure chamber outwards extends and surpasses hyperboloid agitator disk side.
10. The stirring aeration apparatus for sewage treatment according to claim 1, wherein: an air outlet disc is fixedly arranged at the lower end of the transmission shaft, the air outlet disc is communicated with the flow guide channel, and a plurality of air outlet holes are uniformly formed in the air outlet disc;
the shearing rib comprises a sharp head section, an inclined extension section and a horizontal section, the top of the sharp head section is sharp, the sharp head section extends upwards to enter the negative pressure cavity, the horizontal section extends outwards to exceed the side surface of the hyperboloid stirring disc, and the inclined extension section is connected with the sharp head section and the horizontal section;
the lower part of the horizontal section is in a sawtooth shape;
the shearing ribs are distributed in a spiral shape, and the shearing ribs and the flow guide ribs have the same spiral direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211602987.5A CN115849582B (en) | 2022-12-13 | 2022-12-13 | Stirring aeration device for sewage treatment |
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| CN202211602987.5A CN115849582B (en) | 2022-12-13 | 2022-12-13 | Stirring aeration device for sewage treatment |
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| CN115849582B CN115849582B (en) | 2023-07-07 |
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| Publication number | Publication date |
|---|---|
| CN115849582B (en) | 2023-07-07 |
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