CN115093090B - Sludge dewatering processing apparatus based on cavitation principle - Google Patents
Sludge dewatering processing apparatus based on cavitation principle Download PDFInfo
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- CN115093090B CN115093090B CN202211028858.XA CN202211028858A CN115093090B CN 115093090 B CN115093090 B CN 115093090B CN 202211028858 A CN202211028858 A CN 202211028858A CN 115093090 B CN115093090 B CN 115093090B
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- 239000010802 sludge Substances 0.000 title claims abstract description 87
- 238000012545 processing Methods 0.000 title claims description 5
- 238000003756 stirring Methods 0.000 claims abstract description 111
- 244000309464 bull Species 0.000 claims abstract description 6
- 230000008602 contraction Effects 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000003437 trachea Anatomy 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 239000010865 sewage Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 208000005156 Dehydration Diseases 0.000 description 8
- 230000018044 dehydration Effects 0.000 description 8
- 238000006297 dehydration reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 239000013043 chemical agent Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
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- 210000004027 cell Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
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- 230000006866 deterioration Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
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- 230000007886 mutagenicity Effects 0.000 description 1
- 231100000299 mutagenicity Toxicity 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a sludge dewatering treatment device based on a cavitation principle, which belongs to the field of sludge dewatering treatment, and specifically comprises a box body, and the sludge dewatering treatment device further comprises: the stirring assembly is provided with a stirring plate which is arranged in the stirring cavity and can rotate along the circumferential direction of the stirring cavity, and a rotating rod which is positioned at the center of one side of the stirring plate; first drive assembly when the sliding block slides, be used for the drive the stirring board uses the bull stick axis to rotate as the rotation axis. According to the invention, when in an initial state, the thickness of the transverse stirring plate is used as the stirring area to stir the sludge blocks in the sludge, so that the sludge blocks can be crushed, and meanwhile, the sludge is thick, so that the stirring area can be reduced by stirring the sludge by using the transverse stirring plate, the stirring is easier, the load of a motor is reduced, and the damage probability of the stirring plate is also reduced.
Description
Technical Field
The invention relates to the field of sludge dehydration treatment, in particular to a sludge dehydration treatment device based on a cavitation principle.
Background
The sludge is a semi-solid or solid substance generated in the sewage treatment process, enriches the main pollution components of the original sewage, contains pathogenic microorganisms, parasitic ova and some low-content toxic organic matters, has carcinogenicity and mutagenicity, and is extremely easy to cause secondary pollution to the environment and threaten human health once the sludge is not properly treated. However, with the increasing tightening of industrialization, urbanization and environmental protection policies, the scale of sewage treatment in China has increased rapidly in recent years, and the annual output of sludge has reached 60Mt.
Therefore, the research on sludge reduction is the key of sludge treatment, the wall breaking and dehydration of the sludge are the primary factors for realizing sludge reduction, and the sludge treatment process commonly used in the market at present is as follows: the process of the sludge concentration tank → the chemical conditioning tank → the plate and frame filter press introduces chemical agents, which not only increases the cost of the agents, but also causes secondary pollution after the sewage treatment due to the residual substances of the chemical agents.
Disclosure of Invention
The invention aims to provide a sludge dewatering treatment device based on a cavitation principle, and aims to solve the problems that chemical agents are introduced into the conventional sludge treatment process in the market in the background technology, so that the agent cost is increased, and secondary pollution is caused after sewage treatment.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a sludge dewatering treatment device based on a cavitation principle, which comprises a box body, wherein a stirring cavity and a blanking cavity are sequentially arranged in the box body from top to bottom, a discharge hole communicated with the blanking cavity is formed in the bottom of the box body, and the sludge dewatering treatment device also comprises:
the stirring assembly is provided with a stirring plate which is arranged in the stirring cavity and can rotate along the circumferential direction of the stirring cavity, and a rotating rod which is positioned at the center of one side of the stirring plate, wherein a first through hole is formed in the stirring plate along the direction parallel to the stirring plate, a second through hole which is not communicated with the first through hole is formed in the stirring plate along the direction vertical to the stirring plate, the first through hole at least comprises three sections of contraction sections with reduced sectional areas, the sectional areas of the three sections of contraction sections are gradually reduced, and the second through hole is a circular truncated cone-shaped through hole;
the sliding blocks are uniformly arranged on the top of the box body along the circumferential direction of the stirring cavity and can synchronously slide along the radial direction of the stirring cavity;
the first driving assembly is used for driving the stirring plate to rotate by taking the central axis of the rotating rod as a rotating shaft when the sliding block slides;
the baffle rotates through the articulated shaft and is connected in the inside in unloading chamber when the stirring board uses the bull stick axis to rotate as the rotation axis, the baffle can be followed the articulated shaft axis and carried out synchronous revolution for the rotation axis.
Preferably, the stirring subassembly still include with the pivot of the coaxial setting of stirring chamber center pin, and the top of pivot extends to the top of box, the end of bull stick extends to the inside of pivot and rotates with the junction of pivot to be connected, the top of box is provided with the motor, and the output of motor is connected with the top power of pivot.
Preferably, the first driving assembly comprises gears sleeved on the rotating rod and racks arranged between the gears in the vertical direction of the box body, and each rack is meshed with the two gears respectively.
Preferably, the inside in unloading chamber is provided with first dog and second dog, wherein, first dog is located the side in unloading chamber, the second dog is located the intermediate position department in unloading chamber, the bottom of pivot is rotated with the top of second dog and is connected, the baffle is located between first dog and the second dog, the second dog has an upright surface, a face of stepping down and an arcwall face from top to bottom.
Preferably, the inside of stirring board still is provided with gas pocket and branch hole, branch hole and first through-hole intercommunication, the inside of bull stick, pivot and second dog all is provided with the well cavity of mutual intercommunication, just well cavity communicates with the one end of gas pocket, the outside of second dog still is equipped with the trachea with the cavity intercommunication in the second dog.
Preferably, the sludge dewatering device further comprises a second driving assembly, the second driving assembly comprises a first fixing box fixed to the side of the box body, a first piston is arranged inside the first fixing box, the top of the first piston is rotatably connected with a screw rod penetrating through the top of the first fixing box through a bearing, and the screw rod is rotatably connected with the joint of the first fixing box through threads.
Preferably, the second drive assembly is further including locating the box top and with the fixed box of second that the sliding block one-to-one just aligns, the inside of the fixed box of second is provided with the second piston, and the second piston is provided with the connecting rod that extends to the fixed box outside of second and be connected with the sliding block towards the one end of sliding block, communicate through the second connecting pipe between the fixed box of second and the first fixed box.
Preferably, the second drive assembly is further including setting up the fixed box of third on the unloading intracavity wall, the inside of the fixed box of third is provided with the third piston, the top of third piston is provided with the ejector pin that extends to the fixed box top of third, the bottom of baffle is provided with the sliding tray, and the inside of sliding tray is provided with the gliding piece, the top of ejector pin with slide the piece and articulate through the round pin axle, communicate through first connecting pipe between the fixed box of third and the first fixed box.
Preferably, the slide block has a first slide groove and a second slide groove, and the second slide groove includes a straight portion and an inclined portion.
Preferably, be provided with the fixed disk in the pivot, and the bottom of fixed disk evenly is provided with the sleeve along its circumferencial direction, telescopic bottom is provided with the carousel, the bottom of carousel evenly is provided with the ball along its circumferencial direction, and ball and first spout or second spout mutually support, the bottom of carousel and the top annular sliding connection of rack.
Compared with the prior art, the above one or more technical schemes have the following beneficial effects:
1. through injecting oxygen in this device, utilize cavitation oxidation principle to handle sludge water, can realize the mud decrement conscientiously, compare with conventional chemical process, the sludge dehydration rate can promote 10% -30%, and need not to introduce chemical, reduces the medicament cost, avoids secondary pollution, reduces oven-dry mud output, and processing technology is reliable and stable, and area is little, and the cost reduction is 30% -50%.
2. Through when initial condition, utilize the stirring board of "horizontal" state can use its thickness to stir the sludge cake in the mud as the stirring area when stirring for the sludge cake can be stirred by the stirring, simultaneously because mud is the thick thing, consequently utilizes horizontal stirring board stirring mud to reduce the stirring area, changes the stirring.
3. After mud preliminary stirring and by cavitation oxidation, through driving second drive assembly, can make horizontal stirring board become vertical state, increase the area of contact of stirring board and sewage and further carry out cavitation oxidation to sewage.
4. When drive second drive assembly, through mutually supporting of baffle and first dog and second dog, can make the mud of sediment fall into the space of baffle below in, the top sludge water after the sediment then stays in the space of baffle top to this accomplishes the separation of sediment mud and sludge water, convenient operation is simple.
5. When the stirring plate is driven to revolve by the rotating shaft, the stirring plate can deflect back and forth, so that the pressure of sewage is increased when passing through the second through hole in the stirring plate, the cavitation effect is further improved, the second through hole can be prevented from being blocked by the stirring plate which deflects back and forth, and the service life of the stirring plate is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the structure of the case of the present invention;
FIG. 4 is a schematic view of the structure of the present invention in which the slider and the turntable are engaged with each other;
FIG. 5 is a schematic view of one state of the agitating plate of the present invention;
FIG. 6 is a schematic view showing another state of the agitating plate of the present invention;
FIG. 7 is a schematic view of the internal structure of the agitating plate of the present invention;
FIG. 8 is an enlarged view at A in FIG. 5;
FIG. 9 is a schematic view of the connection structure of the rotating shaft and the stirring plate according to the present invention;
FIG. 10 is a schematic view of the slider of the present invention;
FIG. 11 is a partial schematic view of FIG. 2;
in the figure:
1. a box body; 101. a stirring chamber; 102. a blanking cavity; 2. a stirring assembly; 201. a stirring plate; 202. a rotating rod; 3. a first drive assembly; 301. a rack; 302. a gear; 4. a partition plate; 5. a first through hole; 6. a second through hole; 7. a rotating shaft; 8. a motor; 9. air holes; 10. supporting a hole; 11. a second drive assembly; 111. a first stationary box; 112. a first piston; 113. a screw; 114. a second stationary box; 115. a second piston; 116. a connecting rod; 117. a third stationary box; 118. a third piston; 119. a top rod; 120. a first connecting pipe; 121. a second connecting pipe; 12. a first stopper; 13. a second stopper; 131. a vertical surface; 132. a abdication surface; 133. an arc-shaped surface; 14. an air tube; 15. a discharge port; 16. a sleeve; 17. a turntable; 18. a ball bearing; 19. a slider; 191. a first chute; 192. a second chute; 1921. a straight portion; 1922. an inclined portion.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, 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.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
Referring to fig. 1-11, the present invention is mainly applied to biochemical sludge dewatering, and also applied to oxidative degradation of organic matters in advanced wastewater treatment, wherein the technical solution of biochemical sludge dewatering includes: sludge concentration tank → sludge dewatering treatment device → plate and frame filter press;
the invention focuses on a sludge dewatering treatment device, and provides a sludge dewatering treatment device based on a cavitation principle, which comprises a box body 1, wherein a stirring cavity 101 and a blanking cavity 102 are sequentially arranged in the box body 1 from top to bottom, the stirring cavity 101 is a cylindrical cavity, the blanking cavity 102 is a square cavity, the radius of the stirring cavity 101 is the same as the side length of the blanking cavity 102, in addition, a discharge hole 15 communicated with the blanking cavity 102 is arranged at the bottom of the box body 1, the discharge hole 15 is used for discharging sludge out of the box body 1, a valve is arranged in the discharge hole 15, when the box body 1 is used, the valve is closed, so that the sludge in the box body cannot flow out from the discharge hole 15, when the sludge needs to be discharged out of the box body 1, the valve in the discharge hole 15 can be opened, so that the sludge is discharged, and the sludge dewatering treatment device further comprises:
the stirring assembly 2 is provided with a stirring plate 201 which is arranged in the stirring cavity 101 and can rotate along the circumferential direction of the stirring cavity 101, and a rotating rod 202 which is positioned at the center of one side of the stirring plate 201, wherein a first through hole 5 is formed in the stirring plate 201 along the direction parallel to the stirring plate 201, a second through hole 6 which is not communicated with the first through hole 5 is formed in the stirring plate 201 along the direction perpendicular to the stirring plate 201, the first through hole 5 at least comprises three contraction sections with reduced sectional areas, the sectional areas of the three contraction sections are gradually reduced, the second through hole 6 is a circular truncated cone-shaped through hole, and the through hole in the shape also comprises a contraction section with a reduced sectional area, so that when the stirring plate 201 rotates, a certain pressure can be generated, sludge can pass through the first through hole 5 or the second through hole 6, when the sludge passes through the contraction sections in the first through hole 5 or the second through hole 6, the pressure can be reduced, and when the pressure of liquid in the sludge is smaller than the saturated pressure, bubbles in the liquid can be continuously expanded, and the volume is increased; along with the movement of the fluid, the bubbles collapse and burst after reaching the high-pressure high-flow-rate area, huge energy can be released when the bubbles collapse rapidly, micro jet flow with the speed of about 110m/s and strong impact force is generated, and the collision density is as high as 1.5kg/cm & lt 2 > the bubbles generate local high temperature and high pressure at the moment of rapid collapse, and the extreme physical condition can kill most microorganisms in the sewage and destroy the cell walls of the microorganisms, so that the cavitation effect can be effectively realized by utilizing the first through hole 5 or the second through hole 6 with the contraction section, the sewage in the sludge is effectively treated, the B/C of the wastewater is effectively improved, and the treatment efficiency of the wastewater and the sludge of the whole system is optimized;
the sliding blocks 19 are uniformly arranged at the top of the box body 1 along the circumferential direction of the stirring cavity 101 and can synchronously slide along the radius direction of the stirring cavity 101, specifically, the central axis of the stirring cavity 101 is taken as a central point, and the plurality of sliding blocks 19 can move forwards or backwards towards the central point;
the first driving component 3 is used for driving the stirring plate 201 to rotate by taking the central axis of the rotating rod 202 as a rotating shaft when the sliding block 19 slides, and in an initial state, the first driving component 3 can convert the stirring plate 201 from the state shown in fig. 6 into the state shown in fig. 7, so that the contact area of the stirring plate 201 and sludge water is increased;
Please refer to fig. 1, fig. 2 and fig. 7 for emphasis, the stirring assembly 2 further includes a rotating shaft 7 coaxially disposed with the central axis of the stirring cavity 101, and the top end of the rotating shaft 7 extends to the top of the box body 1, the end of the rotating rod 202 extends to the inside of the rotating shaft 7 and is rotatably connected with the joint of the rotating shaft 7, and can be connected through a sealed bearing, the top of the box body 1 is disposed with a motor 8, and the output end of the motor 8 is in power connection with the top end of the rotating shaft 7, and the rotating shaft 7 is connected to the rotating shaft 7 to rotate the rotating rod 202 and the stirring plate 201, and in addition, in order to make the motor 8 more stable during operation, the motor 8 can be mounted on a mounting frame in the prior art, and the mounting frame can be mounted on the ground, the wall surface or the box body 1, so as to ensure the stability of the motor 8 during operation, and the mounting block diagram is not shown in the figure, and will not be repeated herein.
Please refer to fig. 2, fig. 5, fig. 6, fig. 7 and fig. 9, the first driving assembly 3 includes gears 302 sleeved on the rotating rod 202 and racks 301 disposed between the gears 302 along the vertical direction of the case 1, each rack 301 is engaged with two gears 302, the connection between the rack 301 and the top of the case 1 can be connected in a sliding manner by a sliding rail (the sliding rail is prior art, not shown in the figures, and not described here again), so that the rack 301 can slide along the height direction of the case 1, and when the rack 301 slides, the gear 302 can rotate, and further the stirring plate 201 can rotate with the axis of the rotating rod 202 as the rotating shaft.
Please refer to fig. 5 and 6, a first stopper 12 and a second stopper 13 are disposed inside the discharging chamber 102, wherein the first stopper 12 is located at a side of the discharging chamber 102, the second stopper 13 is located at a middle position of the discharging chamber 102, a bottom of the rotating shaft 7 is rotatably connected to a top of the second stopper 13, the partition plate 4 is located between the first stopper 12 and the second stopper 13, the second stopper 13 has a vertical surface 131, a receding surface 132 and an arc surface 133 from top to bottom, in an initial state, two ends of the partition plate 4 respectively abut against the first stopper 12 and the second stopper 13, so that the sludge water in the space above the partition plate 4 cannot flow below the partition plate 4, and when the partition plate 4 starts to rotate, as can be seen from the state in fig. 5 to 6, one end of the partition plate 4 gradually separates from the vertical surface 131 and then faces the receding surface 132, and the receding surface 132 is an inward concave surface and cannot contact with an end of the partition plate 4, and then make the mud flow to the space below the baffle 4 from the gap between the baffle 4 and the abdicating surface 132, and when the end of the baffle 4 moves to the arc surface 133 from the abdicating surface 132, the radian of the arc surface 133 just enables the end of the baffle 4 to be tightly attached to the arc surface 133, and then the baffle 4 blocks the gap, so that the mud can not fall into the space below the baffle 4, by this characteristic, the settled mud water can be treated, because the mud water is settled, the bottom is mud, the upper part is water, when the end of the baffle 4 generates the gap, the mud settled under the mud water can fall into the space below the baffle 4 from the gap, and when the settled mud falls, the end of the baffle 4 has no gap, at this moment, the water above the mud water can be blocked in the space above the baffle 4, the separation of the precipitated sludge and the water is finished by only controlling the rotation time of the partition plate 4, so that the separation is convenient and simple;
because the waste water after the sludge dehydration contains a large amount of organic matters which are difficult to biodegrade, the device does not need to return the waste water to the front end biochemical system according to the conventional process, but utilizes the self structure in the box body 1 to reprocess the dehydrated waste water, thereby avoiding the organic matters which are difficult to degrade from forming ineffective circulation in the waste water treatment system, accumulating to a certain degree, easily causing the deterioration of the whole biochemical system and causing the burden to the whole sewage sludge treatment system.
Please refer to fig. 7, the inside of the stirring plate 201 is further provided with an air hole 9 and a branch hole 10, the branch hole 10 is communicated with the first through hole 5, the insides of the rotating rod 202, the rotating shaft 7 and the second stopper 13 are all provided with hollow cavities which are communicated with each other, the hollow cavities are communicated with one end of the air hole 9, the outside of the second stopper 13 is further provided with an air pipe 14 which is communicated with the hollow cavity inside the second stopper 13, the end of the air pipe 14 is connected with an air pump, the air pump can convey air to the inside of the air pipe 14 in a high pressure mode, the air pipe 14 is communicated with the hollow cavities, the air can be conveyed to the inside of the air hole 9 and then is ejected out from the branch hole 10, firstly, because the inside of the first through hole 5 is at least provided with three contraction sections with reduced cross-sectional areas, and the cross-sectional areas of the three contraction sections are gradually reduced, when sludge water enters the inside of the first through hole 5, a cavitation effect can be effectively generated, meanwhile, each section of the contraction section gradually reduces the sectional area, so that the cavitation effect can be further enhanced, in addition, the outlet end of the branch hole 10 just corresponds to the contraction section in the first through hole 5, the blockage of the contraction section can be effectively prevented, the air sprayed by the branch hole 10 can be subjected to oxidation reaction with organic matters or other reducing substances in sludge water, the ring-opening, chain-breaking and detoxification of organic pollutants which are difficult to degrade are realized, and finally the water quality is improved by realizing the sewage treatment target, and in addition, the pressure of the contraction section is the largest, along with the collapse of cavitation bubbles, oxygen can form countless micro bubbles with smaller sizes in a fluid, the micro bubbles with the size of micron are floated in water along with the flow of the liquid, the contact time and the contact area of the oxygen and the liquid are increased, and the mass transfer utilization efficiency of the oxygen is greatly improved, the efficient utilization of oxygen is realized, so that the sewage treatment effect is better;
in addition, according to the requirements of sludge treatment difficulty and effluent sludge index, the device for injecting oxygen can practically realize sludge reduction according to experiments, compared with the conventional chemical process, the sludge dehydration rate can be improved by 10-30%, no chemical agent needs to be introduced, the agent cost is reduced, secondary pollution is avoided, the absolutely dry sludge yield is reduced, the treatment process is stable and reliable, the occupied area is small, and the cost is reduced by 30-50%; meanwhile, by the mode, organic pollutants in the dehydrated water body can be effectively degraded, the organic matters which are difficult to be biochemically degraded can be oxidized and broken, the COD value is reduced, the B/C of the wastewater is increased, the quality of the backflow water is improved, and the pollutants can be further treated by a biochemical system; and the process does not introduce salt and the like, and does not cause accumulation and ineffective circulation of the substances in the system.
Please refer to fig. 5, fig. 6 and fig. 8, the sludge dewatering processing apparatus further includes a second driving assembly 11, the second driving assembly 11 includes a first fixing box 111 fixed at the side of the box body 1, a first piston 112 is arranged inside the first fixing box 111, the top of the first piston 112 is rotatably connected with a screw 113 penetrating to the top of the first fixing box 111 through a bearing, and the connection part of the screw 113 and the first fixing box 111 is rotatably connected through a thread; the second driving assembly 11 further includes a second fixing box 114 disposed at the top end of the box 1 and corresponding to and aligned with the sliding block 19 one by one, a second piston 115 is disposed inside the second fixing box 114, a connecting rod 116 extending to the outside of the second fixing box 114 and connected to the sliding block 19 is disposed at one end of the second piston 115 facing the sliding block 19, and the second fixing box 114 is communicated with the first fixing box 111 through a second connecting pipe 121; the second driving assembly 11 further comprises a third fixing box 117 arranged on the inner side wall of the blanking cavity 102, a third piston 118 is arranged inside the third fixing box 117, a top rod 119 extending to the top of the third fixing box 117 is arranged at the top of the third piston 118, a sliding groove is arranged at the bottom of the partition plate 4, a sliding block is arranged inside the sliding groove, the top end of the top rod 119 is hinged to the sliding block through a pin shaft, and the third fixing box 117 is communicated with the first fixing box 111 through a first connecting pipe 120;
in the initial state, as sludge possibly contains sludge blocks, the stirring plate 201 is in a transverse state parallel to the top of the box body 1, and the thickness of the stirring plate 201 can be used as the stirring area to stir the sludge blocks in the sludge during stirring, so that the sludge blocks can be crushed, and meanwhile, as the sludge is thick, the stirring area can be reduced by using the transverse stirring plate 201 to stir the sludge, and the stirring is easier;
after sludge blocks in the sludge are crushed, the screw 113 can be rotated at the moment, and because the screw 113 is in threaded connection with the top of the first fixing box 111, the screw 113 can drive the first piston 112 to descend when rotating, so that air or oil in the space below the first piston 112 enters the second fixing box 114 through the second connecting pipe 121, and the second piston 115 in the second fixing box 114 can drive the connecting rod 116 to move towards the direction of the sliding block 19, so that the sliding block 19 moves synchronously; meanwhile, air or oil in the space below the first piston 112 can enter the third fixing box 117 through the first connecting pipe 120, so that the third fixing box 117 drives the ejector rod 119 to ascend, the ejector rod 119 ascends to enable the partition plate 4 in the horizontal state to become inclined, and precipitated sludge can flow down from the gap.
Please refer to fig. 2, fig. 5, fig. 6 and fig. 10, the sliding block 19 has a first sliding slot 191 and a second sliding slot 192, the second sliding slot 192 includes a straight portion 1921 and an inclined portion 1922, the rotating shaft 7 is provided with a fixed disk, the bottom of the fixed disk is uniformly provided with a sleeve 16 along the circumferential direction thereof, the bottom of the sleeve 16 is provided with a rotating disk 17, the bottom of the rotating disk 17 is uniformly provided with balls 18 along the circumferential direction thereof, the balls 18 are matched with the first sliding slot 191 or the second sliding slot 192, and the bottom of the rotating disk 17 is connected with the top of the rack 301 in an annular sliding manner;
as can be seen from fig. 2, 5 and 6, in the initial state, the ball 18 is contained in one end of the first sliding groove 191 facing the rotating shaft 7, and the ball 18 can gradually move in the direction away from the rotating shaft 7 along with the movement of the sliding block 19 towards the rotating shaft 7, and as can be seen from the figure, the first sliding groove 191 is an inclined groove, so that the ball 18 can drive the rotating disc 17 and the rack 301 to ascend along with the movement of the sliding block 19, and correspondingly, the sliding block 19 moves reversely to drive the rotating disc 17 and the rack 301 to descend; when the turntable 17 rises to a certain height, the balls 18 are just located at the intersection of the first chute 191 and the second chute 192, at this time, the sliding block 19 is displaced to the maximum distance, then the motor 8 is started (it should be noted that after the sludge enters the box body 1, the sludge is firstly stirred and dispersed by the transverse stirring plate 201 and is subjected to preliminary cavitation oxidation, then the motor 8 and the air pump are closed to precipitate the sludge, after the precipitation is completed, the precipitated sludge is separated from the floating sewage by the second driving assembly 11, meanwhile, the transverse stirring plate 201 is changed into a vertical state, and then the motor 8 and the air pump are started to cause the vertical stirring plate 201 to perform cavitation oxidation on the sewage), the motor 8 drives the turntable 17 to rotate, and at this time, the balls 18 at the bottom of the turntable 17 are located at the intersection of the first chute 191 and the second chute 192, so that when the turntable 17 rotates, the balls 18 can slide in the second chute 192, and in order to facilitate the balls 18 to slide better, the second chute 192 should have a certain radian, and the radian which is matched with the radian generated when the balls 18 rotate by the central axis 7;
when the balls 18 slide in the second chute 192, the balls 18 are driven to rise to a certain height again due to the inclined portions 1922 on the second chute 192, and after the balls 18 are separated from the inclined portions 1922, the balls automatically fall due to the self weight of the rotating disc 17, so that the rotating disc 17 continuously rises and falls, and further the rack 301 is driven to rise and fall, therefore, when the stirring plate 201 is driven to "revolve" by the rotating shaft 7, the stirring plate 201 can swing back and forth, further, when sewage passes through the second through holes 6 on the stirring plate 201, the pressure is increased, the cavitation effect is further improved, and the stirring plate 201 which swings back and forth can also prevent the second through holes 6 from being blocked, so that the service life of the stirring plate 201 is prolonged;
the effluent sludge water can be subjected to centrifugal dehydration or filter pressing, and as the average 70% of microbial cells is water, after the wall breaking by hydrodynamic cavitation, surface adsorption water, pore water and internal water in the sludge can be separated from the sludge after subsequent centrifugal dehydration or filter pressing, so that the water content of the sludge and the sludge yield can be greatly reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (7)
1. The utility model provides a sludge dewatering processing apparatus based on cavitation principle, includes box (1), its characterized in that, the inside of box (1) has set gradually one from top to bottom stirs chamber (101) and unloading chamber (102), and the bottom of box (1) is provided with discharge gate (15) with unloading chamber (102) intercommunication, still includes:
the stirring assembly (2) is provided with a stirring plate (201) which is arranged in the stirring cavity (101) and can rotate along the circumferential direction of the stirring cavity (101), and a rotating rod (202) which is positioned at the center of one side of the stirring plate (201), wherein a first through hole (5) is formed in the stirring plate (201) along the direction parallel to the stirring plate (201), a second through hole (6) which is not communicated with the first through hole (5) is formed in the stirring plate (201) along the direction vertical to the stirring plate (201), the first through hole (5) at least has three sections of contraction sections with reduced sectional areas, the sectional areas of the three sections of contraction sections are gradually reduced, and the second through hole (6) is a circular truncated cone-shaped through hole;
the sliding blocks (19) are uniformly arranged at the top of the box body (1) along the circumferential direction of the stirring cavity (101) and can synchronously slide along the radial direction of the stirring cavity (101);
the first driving component (3) is used for driving the stirring plate (201) to rotate by taking the central axis of the rotating rod (202) as a rotating shaft when the sliding block (19) slides;
the partition plate (4) is rotatably connected inside the blanking cavity (102) through a hinged shaft, and when the stirring plate (201) rotates by taking the central axis of the rotating rod (202) as a rotating shaft, the partition plate (4) can synchronously rotate by taking the central axis of the hinged shaft as the rotating shaft;
the stirring assembly (2) further comprises a rotating shaft (7) which is coaxial with the central shaft of the stirring cavity (101), the top end of the rotating shaft (7) extends to the top of the box body (1), the tail end of the rotating rod (202) extends to the inside of the rotating shaft (7) and is rotatably connected with the joint of the rotating shaft (7), a motor (8) is arranged at the top of the box body (1), and the output end of the motor (8) is in power connection with the top end of the rotating shaft (7);
a first stop block (12) and a second stop block (13) are arranged in the blanking cavity (102), wherein the first stop block (12) is positioned on the side edge of the blanking cavity (102), the second stop block (13) is positioned in the middle of the blanking cavity (102), the bottom of the rotating shaft (7) is rotatably connected with the top of the second stop block (13), the partition plate (4) is positioned between the first stop block (12) and the second stop block (13), and the second stop block (13) is provided with an upright surface (131), a receding surface (132) and an arc-shaped surface (133) from top to bottom;
the inside of stirring board (201) still is provided with gas pocket (9) and branch hole (10), branch hole (10) and first through-hole (5) intercommunication, the inside of bull stick (202), pivot (7) and second stopper (13) all is provided with the well cavity of mutual intercommunication, just well cavity communicates with the one end of gas pocket (9), the outside of second stopper (13) still is equipped with trachea (14) that communicate with the inside well cavity of second stopper (13).
2. The sludge dewatering treatment device based on the cavitation principle as claimed in claim 1, characterized in that: the first driving assembly (3) comprises gears (302) sleeved on the rotating rods (202) and racks (301) arranged between the gears (302) in the vertical direction of the box body (1), and each rack (301) is meshed with the two gears (302) respectively.
3. The sludge dewatering treatment device based on the cavitation principle as claimed in claim 1, characterized in that: the sludge dewatering treatment device further comprises a second driving assembly (11), wherein the second driving assembly (11) comprises a first fixing box (111) fixed on the side of the box body (1), a first piston (112) is arranged inside the first fixing box (111), the top of the first piston (112) is rotatably connected with a screw rod (113) penetrating through the top of the first fixing box (111) through a bearing, and the connection position of the screw rod (113) and the first fixing box (111) is rotatably connected through threads.
4. The sludge dewatering treatment device based on the cavitation principle as recited in claim 3, wherein: the second driving assembly (11) further comprises a second fixing box (114) which is arranged at the top end of the box body (1) and is in one-to-one correspondence and alignment with the sliding blocks (19), a second piston (115) is arranged inside the second fixing box (114), a connecting rod (116) which extends to the outside of the second fixing box (114) and is connected with the sliding blocks (19) is arranged at one end, facing the sliding blocks (19), of the second piston (115), and the second fixing box (114) is communicated with the first fixing box (111) through a second connecting pipe (121).
5. The sludge dewatering treatment device based on the cavitation principle as claimed in claim 4, characterized in that: second drive assembly (11) are still including setting up third fixed box (117) on unloading chamber (102) inside wall, the inside of third fixed box (117) is provided with third piston (118), the top of third piston (118) is provided with ejector pin (119) that extend to third fixed box (117) top, the bottom of baffle (4) is provided with the sliding tray, and the inside of sliding tray is provided with the slide piece, the top of ejector pin (119) is articulated through the round pin axle with the slide piece, communicate through first connecting pipe (120) between third fixed box (117) and first fixed box (111).
6. The sludge dewatering treatment device based on the cavitation principle as claimed in claim 2, characterized in that: the slide block (19) has a first slide groove (191) and a second slide groove (192), and the second slide groove (192) includes a straight portion (1921) and an inclined portion (1922).
7. The sludge dewatering treatment device based on the cavitation principle as claimed in claim 6, characterized in that: be provided with the fixed disk on pivot (7), and the bottom of fixed disk evenly is provided with sleeve (16) along its circumferencial direction, the bottom of sleeve (16) is provided with carousel (17), the bottom of carousel (17) evenly is provided with ball (18) along its circumferencial direction, and ball (18) mutually support with first spout (191) or second spout (192), the bottom of carousel (17) and the top annular sliding connection of rack (301).
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| CN117448123B (en) * | 2023-12-21 | 2024-03-15 | 广州市娇兰化妆品有限公司 | Sodium hyaluronate microbial fermentation production system |
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Effective date of registration: 20231219 Address after: 017000, located on the west side of Yili Road in Duguitala Town, Hangjin Banner, Ordos City, Inner Mongolia Autonomous Region Patentee after: Hang Jin Qi Yi Jia Environmental Management Co.,Ltd. Address before: Y1-914, Jinan high tech Wanda Plaza, No.57, Gongye South Road, high tech Zone, Jinan City, Shandong Province Patentee before: Shandong Daojian Environmental Protection Technology Co.,Ltd. |