CN113694601B - Medical wastewater treatment device and method - Google Patents
Medical wastewater treatment device and method Download PDFInfo
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- CN113694601B CN113694601B CN202110889602.7A CN202110889602A CN113694601B CN 113694601 B CN113694601 B CN 113694601B CN 202110889602 A CN202110889602 A CN 202110889602A CN 113694601 B CN113694601 B CN 113694601B
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000010865 sewage Substances 0.000 claims abstract description 24
- 238000011001 backwashing Methods 0.000 claims description 47
- 238000003825 pressing Methods 0.000 claims description 39
- 239000002351 wastewater Substances 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 2
- 238000011045 prefiltration Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012450 pharmaceutical intermediate Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
Abstract
The invention provides a medical wastewater treatment device and a method, which comprises a filter tank, a water inlet and a water outlet, wherein the middle part of the upper surface of the filter tank is fixed with the water inlet, the middle part of the lower surface of the filter tank is fixed with the water outlet, the middle part of the inner wall of the filter tank is rotatably connected with a connecting disc through a bearing, six filter screens are fixed at equal intervals around the connecting disc, and a support assembly is fixed on the inner wall of the filter tank. Greatly improving the efficiency of sewage treatment.
Description
Technical Field
The invention relates to the technical field of medical wastewater treatment devices, in particular to a medical wastewater treatment device and method.
Background
The pharmaceutical chemical wastewater generally comprises organic wastewater discharged in the production process of pharmaceutical intermediate industry, pharmaceutical raw material synthesis industry and pharmaceutical preparation industry, the wastewater not only has high organic matter concentration, but also contains substances with toxic action on organisms, and along with the acceleration of the industrial process of China, the discharge amount of the wastewater is increasingly large, so that the environment is seriously polluted, the life health of human beings is threatened, and the pollution environment has great harm to the health of human beings because the pharmaceutical wastewater contains various toxic substances, so the development and comprehensive utilization are needed, and the harm is turned into the benefit;
generally, in the process of treating medical wastewater, the first process is to pretreat the medical wastewater, namely to prefilter large-particle substances in the medical wastewater, and the traditional medical wastewater pretreatment equipment needs to backwash a filter screen after being used for a period of time, but the traditional equipment is stopped for cleaning during backwashing, the pretreatment work of wastewater must be stopped for backwashing, and the backwashing time is long, so that the efficiency of wastewater pretreatment is greatly reduced.
Therefore, it is necessary to provide a medical wastewater treatment apparatus and method to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a medical wastewater treatment device and a medical wastewater treatment method which effectively improve the medical wastewater treatment efficiency and facilitate the back flushing of a filter screen.
The invention provides a medical wastewater treatment device which comprises a filter tank, a water inlet and a water outlet, wherein the water inlet is fixed in the middle of the upper surface of the filter tank, the water outlet is fixed in the middle of the lower surface of the filter tank, the middle of the inner wall of the filter tank is rotatably connected with a connecting disc through a bearing, six filter screens are fixed around the connecting disc at equal intervals, a support assembly is fixed on the inner wall of the filter tank, the outer wall of the support assembly is slidably connected with a backwashing assembly for backwashing, an opening and closing assembly for driving the backwashing assembly to move is arranged in the filter tank, and a rotating assembly for driving the connecting disc to rotate is arranged in the filter tank; the support assembly comprises an upper support plate, a lower support plate and support columns, the upper support plate is fixed at the upper end of the inner wall of the filter tank, the lower support plate is fixed at the lower end of the inner wall of the filter tank, the support columns are rotatably connected between the upper support plate and the lower support plate through bearings, and the support columns are rotatably connected with the connecting disc through bearings; the back flush subassembly includes transfer water box, connection hard tube, compresses tightly lid, stainless steel hose, connecting pipe and valve, the outer wall of support column has the transfer water box through slide opening symmetry sliding connection, one side equidistance of transfer water box is fixed with the connection hard tube, and connects the hard tube and have threely, the one end that the transfer water box was kept away from to the connection hard tube is fixed with and presses tightly the lid, it is corresponding with the position of filter screen to press tightly the lid, and compresses tightly lid and the inner wall sliding connection who filters the jar, one side of transfer water box is fixed with stainless steel hose, the lateral wall symmetry of filtering the jar is fixed with the connecting pipe, the one end of connecting pipe is fixed with the valve, the stainless steel hose is kept away from the one end of transfer water box and is fixed with the connecting pipe.
Preferably, the opening and closing assembly comprises a driving groove, a driving column, a worm gear, a worm, a first connecting rod, a speed reducing motor, a driving disc, a first shifting sheet and a first ratchet wheel, the driving groove is symmetrically formed in two ends of the supporting column, one side, far away from the hard connecting pipe, of the transit water box is symmetrically and rotatably connected with the driving column through a bearing, the driving column is in rolling connection with the inner wall of the driving groove, the worm gear is fixed at the lower end of the supporting column, the worm is rotatably connected with the top of the lower supporting plate through the bearing, the worm is in meshed connection with the worm gear, the first connecting rod is rotatably connected with one side, close to the worm, of the inner wall of the filter tank through the bearing, one end, close to the worm, of the first connecting rod is rotatably connected with the lower supporting plate through the bearing, the speed reducing motor is fixed on the outer wall of the filter tank, and the output end of the speed reducing motor is fixed with one end of the first connecting rod, the worm is close to the one end of first connecting rod and is fixed with the driving-disc, the inner wall equidistance of driving-disc is fixed with first plectrum, the one end that the first connecting rod is close to first plectrum is fixed with first ratchet, first ratchet cooperatees with first plectrum.
Preferably, the rotating assembly comprises a support frame, a connecting ring, a driven bevel gear, a driving bevel gear, a second connecting rod, a reinforcing plate, a second plectrum, a second ratchet wheel, a driving gear and a driven gear, the support frame is fixed at the top of the lower support plate close to one side of the driving disc, the connecting ring is rotatably connected at the middle part of the lower end of the support frame through a bearing, the driven bevel gear is fixed at the bottom of the connecting ring, the driving bevel gear is fixed at one end of the first connecting rod close to the driven bevel gear, the driving bevel gear is meshed with the driven bevel gear, the second connecting rod is rotatably connected at the middle part of the upper end of the support frame through a bearing, the reinforcing plate is fixed at one side of the inner wall of the filter tank, the upper end of the second connecting rod is rotatably connected with the reinforcing plate through a bearing, the second plectrum is fixed at the lower end of the second connecting rod, and the second ratchet wheel is fixed at the upper end of the inner wall of the connecting ring, the second ratchet wheel is matched with the second shifting piece, a driving gear is fixed to the top of the second connecting rod, a driven gear is fixed to the bottom of the connecting disc, and the driving gear is meshed with the driven gear.
Preferably, the equal equidistance in both sides of crossing the jar inner wall is fixed with the slide rail, one side that compresses tightly the lid is fixed with the draw runner, the outer wall sliding connection of draw runner and slide rail.
Preferably, a rubber sealing ring is fixed on one side of the pressing cover close to the connecting disc, and one side of the rubber sealing ring is in pressing contact with the surface of the connecting disc.
Preferably, one side that the outer wall of crossing the jar is close to gear motor is fixed with waterproof box, the louvre has been seted up to the equal equidistance in both sides of waterproof box.
Preferably, a support ring is fixed on the inner wall of the filter tank, and the connecting disc is connected with the surface of the support ring in a sliding manner.
The invention also provides a medical wastewater treatment method, and the device of the invention basically comprises the following steps:
the method comprises the following steps: the water outlet end of the sewage pumping device is connected with the water inlet, the water outlet is connected with the sewage conveying device, and the medical sewage to be pretreated is filled into the filter tank through the water inlet.
Step two: the sewage that drops into carries out the prefiltration processing through the filter screen on the connection pad, and the sewage after the prefiltration processing flows into the filter screen and flows to the below of filtering the jar, finally discharges through the outlet.
Step three: when the filter screen needs to be backwashed, the water outlet end of the clear water pumping device is connected with a connecting pipe at the lower part, and the water inlet end of the waste water collecting device is connected with a connecting pipe at the upper part.
Step four: and then rotate through gear motor forward, drive through the subassembly that opens and shuts and compress tightly the lid and compress tightly on the connection pad, and make the filter screen be in two and compress tightly between the lid, and then stop drive gear motor forward and rotate, and then open two valves simultaneously, through filling the clear water in a connecting pipe of below, and then carry out the recoil work to the filter screen.
Step five: the valve is closed after the three filter screens finish the back washing work, the pressing cover is driven to be separated from the connecting disc through the opening and closing assembly by driving the speed reducing motor to rotate forwards, then the speed reducing motor is driven to rotate backwards, the connecting disc is driven to rotate for 60 degrees, then the speed reducing motor is driven to rotate forwards again, the pressing cover is pressed on the connecting disc again, and the back washing work of the second group of three filter screens is carried out.
Compared with the related art, the medical wastewater treatment device and method provided by the invention have the following beneficial effects:
the invention provides a medical wastewater treatment device and a method:
1. according to the invention, six filter screens are arranged in the filter tank to carry out wastewater pretreatment, so that the non-stop operation can be realized when backwashing is needed, namely, three filter screens are subjected to backwashing operation through the backwashing component, and the other three filter screens in the filter tank are subjected to wastewater pretreatment, so that the wastewater treatment operation can be carried out without stopping the machine when the backwashing operation is carried out, the phenomenon that the wastewater treatment efficiency is reduced due to backwashing is avoided, and the wastewater treatment efficiency is greatly improved;
2. the invention can complete the opening and closing work of the driving pressing cover and the rotation work of the driving connecting disc by arranging the speed reducing motor, namely, the whole back washing work can be completed by matching the back washing component with one speed reducing motor, thereby reducing the running cost of the device during back washing to the maximum extent.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the location structure of the connecting disc of the present invention;
FIG. 3 is a schematic view of the position structure of the lower support plate of the present invention;
FIG. 4 is a schematic structural view of a backwash assembly of the present invention;
FIG. 5 is a schematic view of the opening/closing assembly of the present invention;
FIG. 6 is an enlarged view of the invention at A;
FIG. 7 is a schematic view of the rotating assembly of the present invention;
FIG. 8 is a schematic view of the position structure of the support ring according to the present invention;
fig. 9 is a schematic view of the position structure of the rubber sealing ring of the present invention.
Reference numbers in the figures: 1. a filtration tank; 2. a water inlet; 3. a water outlet; 4. a connecting disc; 5. filtering with a screen; 6. a support assembly; 61. an upper support plate; 62. a lower support plate; 63. a support pillar; 7. a backwash assembly; 71. a transit water box; 72. connecting a hard pipe; 73. a compression cover; 74. a stainless steel hose; 75. a connecting pipe; 76. a valve; 8. an opening and closing component; 81. a drive slot; 82. a drive column; 83. a worm gear; 84. a worm; 85. a first connecting rod; 86. a reduction motor; 87. a drive disc; 88. a first plectrum; 89. a first ratchet wheel; 9. a rotating assembly; 91. a support frame; 92. a connecting ring; 93. a driven bevel gear; 94. a drive bevel gear; 95. a second connecting rod; 96. a reinforcing plate; 97. a second plectrum; 98. a second ratchet; 99. a driving gear; 910. a driven gear; 10. a slide rail; 11. a slide bar; 12. a rubber seal ring; 13. a waterproof box; 14. heat dissipation holes; 15. and (3) supporting the ring.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
In the specific implementation process, as shown in fig. 1, fig. 2 and fig. 3, the medical wastewater treatment device and method comprises a filter tank 1, a water inlet 2 and a water outlet 3, wherein the water inlet 2 is fixed in the middle of the upper surface of the filter tank 1, the water outlet 3 is fixed in the middle of the lower surface of the filter tank 1, the middle of the inner wall of the filter tank 1 is rotatably connected with a connecting disc 4 through a bearing, filter screens 5 are fixed around the connecting disc 4 at equal intervals, the number of the filter screens 5 is six, a support component 6 is fixed on the inner wall of the filter tank 1, a backwashing component 7 for backwashing is slidably connected to the outer wall of the support component 6, an opening and closing component 8 for driving the backwashing component 7 to move is arranged inside the filter tank 1, and a rotating component 9 for driving the connecting disc 4 to rotate is arranged inside the filter tank 1.
It should be noted that, according to the invention, six filter screens 5 are arranged to perform the sewage pretreatment and filtration work, so that when the filter screens 5 need to be backwashed, the filter screens 5 can be backwashed alternately, that is, while three filter screens 5 perform the backwashing work, the other three filter screens 5 can perform the sewage pretreatment work simultaneously, thereby greatly improving the sewage treatment efficiency and saving the backwashing time.
Referring to fig. 2 and 3, the supporting component 6 includes an upper supporting plate 61, a lower supporting plate 62 and a supporting column 63, the upper end of the inner wall of the filter tank 1 is fixed with the upper supporting plate 61, the lower end of the inner wall of the filter tank 1 is fixed with the lower supporting plate 62, the upper supporting plate 61 and the lower supporting plate 62 are connected with the supporting column 63 through the bearing in a rotating manner, and the supporting column 63 is connected with the connecting disc 4 through the bearing in a rotating manner.
Referring to fig. 1 and 4, the backwashing assembly 7 includes a transit water box 71, a connection hard tube 72, a pressing cover 73, a stainless steel hose 74, a connection pipe 75 and a valve 76, the outer wall of the support column 63 is symmetrically and slidably connected with the transit water box 71 through a sliding hole, the connection hard tube 72 is fixed on one side of the transit water box 71 at equal intervals, and there are three connection hard tubes 72, the pressing cover 73 is fixed on one end of the connection hard tube 72 far from the transit water box 71, the pressing cover 73 corresponds to the filter screen 5, the pressing cover 73 is slidably connected with the inner wall of the filter tank 1, the stainless steel hose 74 is fixed on one side of the transit water box 71, the connection pipe 75 is symmetrically fixed on the side wall of the filter tank 1, the valve 76 is fixed on one end of the connection pipe 75, and one end of the stainless steel hose 74 far from the transit water box 71 is fixed with the connection pipe 75.
It should be noted that, the backwashing operation can be conveniently completed, and only three filter screens 5 are backwashed during the backwashing operation, so that it can be ensured that three filter screens 5 can be left for the backwashing operation at each time.
Referring to fig. 4, 5 and 6, the opening and closing assembly 8 includes a driving groove 81, a driving column 82, a worm wheel 83, a worm 84, a first connecting rod 85, a speed reducing motor 86, a driving disc 87, a first shifting piece 88 and a first ratchet wheel 89, the driving groove 81 is symmetrically formed at two ends of the supporting column 63, the driving column 82 is symmetrically and rotatably connected to one side of the transfer water box 71 away from the connecting hard tube 72 through a bearing, the driving column 82 is in rolling connection with the inner wall of the driving groove 81, the worm wheel 83 is fixed at the lower end of the supporting column 63, the worm 84 is rotatably connected to the top of the lower supporting plate 62 through a bearing, the worm 84 is meshed with the worm wheel 83, the first connecting rod 85 is rotatably connected to one side of the inner wall of the filter tank 1 close to the worm 84 through a bearing, one end of the first connecting rod 85 close to the worm 84 is rotatably connected to the lower supporting plate 62 through a bearing, a speed reducing motor 86 is fixed on the outer wall of the filter tank 1, the output end of the speed reducing motor 86 is fixed with one end of a first connecting rod 85, a driving disk 87 is fixed at one end of the worm 84 close to the first connecting rod 85, first poking pieces 88 are fixed on the inner wall of the driving disk 87 at equal intervals, a first ratchet 89 is fixed at one end of the first connecting rod 85 close to the first poking pieces 88, and the first ratchet 89 is matched with the first poking pieces 88.
Referring to fig. 5, 6 and 7, the rotating assembly 9 includes a support frame 91, a connecting ring 92, a driven bevel gear 93, a driving bevel gear 94, a second connecting rod 95, a reinforcing plate 96, a second pick 97, a second ratchet 98, a driving gear 99 and a driven gear 910, the support frame 91 is fixed to the top of one side of the lower support plate 62 close to the driving plate 87, the connecting ring 92 is rotatably connected to the middle of the lower end of the support frame 91 through a bearing, the driven bevel gear 93 is fixed to the bottom of the connecting ring 92, the driving bevel gear 94 is fixed to one end of the first connecting rod 85 close to the driven bevel gear 93, the driving bevel gear 94 is engaged with the driven bevel gear 93, the second connecting rod 95 is rotatably connected to the middle of the upper end of the support frame 91 through a bearing, the reinforcing plate 96 is fixed to one side of the inner wall of the filter tank 1, and the upper end of the second connecting rod 95 is rotatably connected to the reinforcing plate 96 through a bearing, a second shifting piece 97 is fixed at the lower end of the second connecting rod 95, a second ratchet 98 is fixed at the upper end of the inner wall of the connecting ring 92, the second ratchet 98 is matched with the second shifting piece 97, a driving gear 99 is fixed at the top of the second connecting rod 95, a driven gear 910 is fixed at the bottom of the connecting plate 4, and the driving gear 99 is in meshed connection with the driven gear 910.
It should be noted that, the operation of the opening and closing assembly 8 and the rotating assembly 9 can be completed by only one motor, when the backwashing is needed, the reduction motor 86 is driven to rotate in the forward direction to rotate the worm 84, and finally the pressing covers 73 at the upper and lower positions can be moved in the direction of approaching each other until the pressing covers 73 press against the connecting disc 4 and the filter screens 5 are wrapped between the two pressing covers 73, when the reduction motor 86 rotates in the forward direction for a set number of turns to press the pressing covers 73, the reduction motor 86 is stopped from rotating in the forward direction to perform the backwashing operation, after the three filter screens 5 are completed, the reduction motor 86 is driven to rotate in the forward direction again for the same number of turns to move the pressing covers 73 at the upper and lower positions in the direction of separating from each other until the two pressing covers 73 can reach the farthest distance, the reduction motor 86 is driven to rotate in the reverse direction, at this time, the worm 84 cannot be driven to rotate, so that the driving gear 99 can be driven to rotate, the connecting disc 4 is finally driven to rotate for 60 degrees, the washed filter screens 5 are rotated to be opened, the unwashed filter screens rotate to a position between the two pressing covers 73, and the operation is repeated to complete the backwashing operation of the remaining three filter screens 5.
Referring to fig. 2, the equal equidistance in both sides of filter tank 1 inner wall is fixed with slide rail 10, one side of compressing tightly lid 73 is fixed with draw runner 11, draw runner 11 and slide rail 10's outer wall sliding connection can make and compress tightly the gliding more smooth and easy of lid 73.
Referring to fig. 9, the rubber seal 12 is fixed to the pressing cover 73 on the side close to the connecting disc 4, and the side of the rubber seal 12 is in pressing contact with the surface of the connecting disc 4, so that the sealing performance of the pressing cover 73 pressed against the connecting disc 4 can be improved.
Referring to fig. 1, a waterproof box 13 is fixed on one side of the outer wall of the filter tank 1 close to the speed reduction motor 86, and heat dissipation holes 14 are formed in two sides of the waterproof box 13 at equal distances, so that the speed reduction motor 86 can be protected conveniently.
Referring to fig. 8, a support ring 15 is fixed on the inner wall of the filter tank 1, and the connection disc 4 is slidably connected with the surface of the support ring 15, so that the connection stability of the connection disc 4 and the filter tank 1 can be improved.
Referring to fig. 1 to 9, the present invention also provides a medical wastewater treatment method, which is basically the apparatus of the present invention, comprising the steps of:
the method comprises the following steps: the water outlet end of the sewage pumping equipment is connected with the water inlet 2, the water outlet 3 is connected with the sewage conveying equipment, and the medical sewage to be pretreated is filled into the filter tank 1 through the water inlet 2.
Step two: the sewage after the pre-filtration treatment enters the filter screen 5 to flow to the lower part of the filter tank 1 and is finally discharged through the water outlet 3.
Step three: when the filter screen 5 needs to be backwashed, the water outlet end of the clear water pumping device is connected with one connecting pipe 75 positioned below, and the water inlet end of the waste water collecting device is connected with one connecting pipe 75 positioned above.
Step four: and then rotate through gear motor 86 forward, drive through opening and shutting subassembly 8 and compress tightly lid 73 and compress tightly on connection pad 4, and make filter screen 5 be in two and compress tightly between the lid 73, and then stop to drive gear motor 86 forward and rotate, and then open two valves 76 simultaneously, through filling the clear water in a connecting pipe 75 to the below, and then carry out the recoil work to filter screen 5.
Step five: after the three filter screens 5 complete the backwashing work, the valve 76 is closed, the speed reduction motor 86 is driven to rotate forward to drive the pressing cover 73 to be separated from the connecting disc 4 through the opening and closing assembly 8, the speed reduction motor 86 is further driven to rotate reversely, the connecting disc 4 is driven to rotate by 60 degrees, the speed reduction motor 86 is further driven to rotate forward again, the pressing cover 73 is further pressed on the connecting disc 4, and the backwashing work of the second group of three filter screens 5 is performed.
The working principle is as follows: when the device is used, the water outlet end of the sewage pumping device is connected with the water inlet 2, the water outlet 3 is connected with the sewage conveying device, the medicine sewage to be pretreated is filled into the filter tank 1 through the water inlet 2, the added sewage is subjected to pre-filtering treatment through the filter screen 5 on the connecting disc 4, and the sewage subjected to pre-filtering treatment enters the filter screen 5, flows to the lower part of the filter tank 1 and is finally discharged through the water outlet 3;
when the filter screen 5 needs to be backwashed, the water outlet end of the clean water pumping device is connected with one connecting pipe 75 positioned below, the water inlet end of the waste water collecting device is connected with one connecting pipe 75 positioned above, and the reducing motor 86 is driven to rotate in the forward direction, so that the first connecting rod 85 can be driven to rotate, at the moment, the first connecting rod 85 rotates to drive the driving gear 99 to rotate, so as to drive the driven bevel gear 93 to rotate, but at the moment, the second ratchet 98 in the connecting ring 92 cannot clamp the second poking piece 97, and the first connecting rod 85 rotates to drive the first ratchet 89 to rotate, the first ratchet 89 rotates to clamp the first poking piece 88 so as to drive the driving disc 87 to rotate, so as to drive the worm 84 to rotate, so as to drive the worm wheel 83 to rotate, so as to drive the supporting column 63 to rotate, and through the arrangement of the driving grooves 81 on the supporting column 63, the driving column 82 can roll along the inner wall of the driving groove 81, so that the pressing cover 73 at the upper position can slide downwards until pressing on the connecting disc 4, and the pressing cover 73 at the lower position can slide upwards and press on the connecting disc 4;
after the previous step is completed, and the conditions for performing the backwashing work are met, the two valves 76 are opened, clean water is introduced into the connecting pipe 75 at the lower position, the clean water enters the lower transfer water box 71 through the stainless steel hose 74 at the lower position, enters the connecting hard pipe 72, enters the lower pressing cover 73, flows upwards through the filter screens 5 wrapped by the two pressing covers 73, and performs backwashing on the filter screens 5, the flushed water flows into the transfer water box 71 at the upper position, and is finally discharged through the connecting pipe 75 at the upper position, so that the backwashing work of the three filter screens 5 is completed, and at the moment, the sewage treatment work in the filter tank 1 can be simultaneously performed, the backwashing work is performed through the remaining three filter screens 5, and the two valves 76 are closed after the flushing work is completed;
after the three filter screens 5 complete the back flushing operation, the second stage of the operation principle is repeated, only by the shape of the driving groove 81, at this time, the decelerating motor 86 rotates again to move the pressing cover 73 at the upper and lower positions to the side far away from the connecting disc 4, and finally, the pressing cover 73 is moved to the farthest distance away from the connecting disc 4, the decelerating motor 86 stops driving to rotate forwardly, then when the decelerating motor 86 rotates reversely, and the decelerating motor 86 rotates reversely to drive the first connecting rod 85, the first connecting rod 85 rotates to drive the first ratchet 89 to rotate but cannot clamp the first shifting piece 88, so that the supporting column 63 cannot be driven to rotate, but the first connecting rod 85 rotates reversely to drive the driving bevel gear 94 to rotate to drive the driven bevel gear 93 to rotate to drive the connecting ring 92 to rotate, and then the second shifting piece 97 can be clamped by the second ratchet 98 in the connecting ring 92, the second connecting rod 95 can be driven to rotate, the driving gear 99 can be driven to rotate, the driven gear 910 can be driven to rotate, the connecting disc 4 can be driven to rotate, finally, the connecting disc 4 can rotate for 60 degrees, the filter screen 5 after backwashing is rotated, the filter screen 5 which is not washed is rotated to a position between the two pressing covers 73, the flow of the second section and the third section of the working principle is repeated again, and backwashing work of the rest of the filter screens 5 is completed;
according to the invention, six filter screens 5 are arranged in the filter tank 1 for wastewater pretreatment, so that non-stop operation can be realized when backwashing is needed, namely, backwashing is carried out on three filter screens 5 through the backwashing component 7, and the other three filter screens 5 in the filter tank 1 are used for wastewater pretreatment, so that the wastewater treatment is carried out without stopping the machine when backwashing is carried out, the phenomenon that the wastewater treatment efficiency is reduced due to backwashing is avoided, and the wastewater treatment efficiency is greatly improved.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
1. A medical wastewater treatment device, which comprises a filter tank (1), a water inlet (2) and a water outlet (3), a water inlet (2) is fixed in the middle of the upper surface of the filtering tank (1), a water outlet (3) is fixed in the middle of the lower surface of the filtering tank (1), it is characterized in that the middle part of the inner wall of the filtering tank (1) is rotatably connected with a connecting disc (4) through a bearing, filter screens (5) are fixed on the periphery of the connecting disc (4) at equal intervals, six filter screens (5) are arranged, a supporting component (6) is fixed on the inner wall of the filter tank (1), the outer wall of the supporting component (6) is connected with a back washing component (7) for back washing operation in a sliding way, an opening and closing component (8) for driving the back washing component (7) to move is arranged in the filtering tank (1), a rotating assembly (9) for driving the connecting disc (4) to rotate is arranged in the filtering tank (1); the supporting assembly (6) comprises an upper supporting plate (61), a lower supporting plate (62) and a supporting column (63), the upper supporting plate (61) is fixed at the upper end of the inner wall of the filtering tank (1), the lower supporting plate (62) is fixed at the lower end of the inner wall of the filtering tank (1), the supporting column (63) is rotatably connected between the upper supporting plate (61) and the lower supporting plate (62) through a bearing, and the supporting column (63) is rotatably connected with the connecting disc (4) through a bearing; the backwashing component (7) comprises a transfer water box (71), a connecting hard pipe (72), a pressing cover (73), a stainless steel hose (74), connecting pipes (75) and valves (76), wherein the outer wall of the supporting column (63) is symmetrically and slidably connected with the transfer water box (71) through sliding holes, the connecting hard pipe (72) is fixed on one side of the transfer water box (71) at equal intervals, the number of the connecting hard pipes (72) is three, the pressing cover (73) is fixed on one end, far away from the transfer water box (71), of the connecting hard pipe (72), the pressing cover (73) corresponds to the position of the filter screen (5), the pressing cover (73) is slidably connected with the inner wall of the filter tank (1), the stainless steel hose (74) is fixed on one side of the transfer water box (71), the connecting pipes (75) are symmetrically fixed on the side wall of the filter tank (1), and the valves (76) are fixed on one end of the connecting pipes (75), one end of the stainless steel hose (74) far away from the transit water box (71) is fixed with the connecting pipe (75); when the filter screen (5) needs to be backwashed, the water outlet end of the clear water pumping equipment is connected with one connecting pipe (75) positioned below, and the water inlet end of the waste water collecting equipment is connected with one connecting pipe (75) positioned above; and then drive through subassembly (8) that opens and shuts and compress tightly lid (73) and compress tightly on connection pad (4), and make filter screen (5) be in two and compress tightly between lid (73), and then open two valves (76) simultaneously, through filling up the clear water in a connecting pipe (75) to the below, carry out the recoil work to filter screen (5).
2. The medical wastewater treatment device according to claim 1, wherein the opening and closing assembly (8) comprises a driving groove (81), a driving column (82), a worm wheel (83), a worm (84), a first connecting rod (85), a speed reduction motor (86), a driving disc (87), a first shifting sheet (88) and a first ratchet wheel (89), the driving groove (81) is symmetrically formed in two ends of the supporting column (63), the driving column (82) is symmetrically and rotatably connected to one side, away from the connecting hard pipe (72), of the transfer water box (71) through a bearing, the driving column (82) is in rolling connection with the inner wall of the driving groove (81), the worm wheel (83) is fixed to the lower end of the supporting column (63), the top of the lower supporting plate (62) is rotatably connected with the worm (84) through the bearing, the worm (84) is in meshing connection with the worm wheel (83), and the first connecting rod is rotatably connected to one side, close to the worm (84), of the inner wall of the filter tank (1), through the bearing (85) The utility model discloses a filter tank, the one end that head rod (85) is close to worm (84) is passed through the bearing and is connected with lower supporting plate (62) rotation, the outer wall of filter tank (1) is fixed with gear motor (86), the output of gear motor (86) is fixed with the one end of head rod (85), one end that worm (84) are close to head rod (85) is fixed with driving-disc (87), the inner wall equidistance of driving-disc (87) is fixed with first plectrum (88), the one end that head rod (85) are close to first plectrum (88) is fixed with first ratchet (89), first ratchet (89) cooperate with first plectrum (88).
3. The medical wastewater treatment device according to claim 2, wherein the rotating assembly (9) comprises a support frame (91), a connecting ring (92), a driven bevel gear (93), a driving bevel gear (94), a second connecting rod (95), a reinforcing plate (96), a second plectrum (97), a second ratchet wheel (98), a driving gear (99) and a driven gear (910), the support frame (91) is fixed at the top of one side of the lower support plate (62) close to the driving plate (87), the connecting ring (92) is rotatably connected to the middle of the lower end of the support frame (91) through a bearing, the driven bevel gear (93) is fixed at the bottom of the connecting ring (92), the driving bevel gear (94) is fixed at one end of the first connecting rod (85) close to the driven bevel gear (93), and the driving bevel gear (94) is meshed with the driven bevel gear (93), the middle part of support frame (91) upper end is rotated through the bearing and is connected with second connecting rod (95), one side of crossing filter tank (1) inner wall is fixed with reinforcing plate (96), the upper end of second connecting rod (95) is passed through the bearing and is rotated with reinforcing plate (96) and be connected, the lower extreme of second connecting rod (95) is fixed with second plectrum (97), the upper end of go-between (92) inner wall is fixed with second ratchet (98), second ratchet (98) cooperatees with second plectrum (97), the top of second connecting rod (95) is fixed with driving gear (99), the bottom of connection pad (4) is fixed with driven gear (910), driving gear (99) are connected with driven gear (910) meshing.
4. The medical wastewater treatment device according to claim 3, wherein slide rails (10) are fixed on two sides of the inner wall of the filter tank (1) at equal intervals, a slide bar (11) is fixed on one side of the pressing cover (73), and the slide bar (11) is connected with the outer wall of the slide rail (10) in a sliding manner.
5. The medical wastewater treatment apparatus according to claim 3, wherein a rubber packing (12) is fixed to a side of the pressing cover (73) close to the connection plate (4), and one side of the rubber packing (12) is in press contact with the surface of the connection plate (4).
6. The medical wastewater treatment device according to claim 3, wherein a waterproof box (13) is fixed on one side of the outer wall of the filter tank (1) close to the speed reduction motor (86), and heat dissipation holes (14) are formed in two sides of the waterproof box (13) at equal intervals.
7. The medical wastewater treatment device according to claim 3, wherein a support ring (15) is fixed on the inner wall of the filter tank (1), and the connecting disc (4) is connected with the surface of the support ring (15) in a sliding way.
8. A medical wastewater treatment method based on the device of any one of claims 2 to 7, wherein the treatment method comprises:
the method comprises the following steps: the water outlet end of the sewage pumping equipment is connected with the water inlet (2), the water outlet (3) is connected with the sewage conveying equipment, and the medical sewage to be pretreated is filled into the filter tank (1) through the water inlet (2);
step two: the input sewage is pre-filtered by a filter screen (5) on a connecting disc (4), and the pre-filtered sewage flows into the filter screen (5) to flow to the lower part of the filter tank (1) and is finally discharged through a water outlet (3);
step three: when the filter screen (5) needs to be backwashed, the water outlet end of the clear water pumping equipment is connected with one connecting pipe (75) positioned below, and the water inlet end of the waste water collecting equipment is connected with one connecting pipe (75) positioned above;
step four: the speed reducing motor (86) rotates forwards, the opening and closing assembly (8) drives the pressing covers (73) to be pressed on the connecting disc (4), the filter screen (5) is located between the two pressing covers (73), the speed reducing motor (86) stops being driven to rotate forwards, the two valves (76) are opened simultaneously, and clean water is filled into one connecting pipe (75) at the lower part, so that the filter screen (5) is backflushed;
step five: after the three filter screens (5) finish the backwashing work, the valve (76) is closed, the pressing cover (73) is driven to be separated from the connecting disc (4) through the opening and closing assembly (8) by driving the speed reducing motor (86) to rotate forwards, and then the speed reducing motor (86) is driven to rotate reversely, so that the connecting disc (4) is driven to rotate for 60 degrees, and then the speed reducing motor (86) is driven to rotate forwards again, so that the pressing cover (73) is pressed on the connecting disc (4) again, and the backwashing work of the second group of three filter screens (5) is carried out.
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