CN212127873U - Medical sewage pretreatment device - Google Patents

Abstract

The application provides a medical sewage pretreatment device, includes: the system comprises a first pretreatment unit, a second pretreatment unit and a transition pipeline for connecting the first pretreatment unit and the second pretreatment unit; the first pre-processing unit includes: the device comprises a first pretreatment box with a cuboid structure and a plate-type first filter screen matched and connected with the first pretreatment box; the second preprocessing unit includes: the second preliminary treatment case of cylinder structure with place in place the type of falling cone second filter screen in the second preliminary treatment case. Based on above-mentioned structure, first preprocessing unit and second preprocessing unit among this technical scheme can be in proper order to the great thing piece in the hospital sewage, metal garrulous piece (and/or glass garrulous piece) filters, and follow-up sewage treatment system is continued to get into to the rivers of second preprocessing unit delivery port exhaust, carries out subsequent disinfection and isolation purification operation.

Description

Medical sewage pretreatment device

Technical Field

The present disclosure specifically discloses a medical sewage pretreatment device.

Background

Water pollution is water that causes a reduction or loss in the use value of water due to harmful chemicals, and pollutes the environment. Acid, alkali and oxidant in the sewage, compounds such as copper, pot, mercury, arsenic and the like, and organic poisons such as benzene, dichloroethane, ethylene glycol and the like can kill aquatic organisms, and influence drinking water sources and scenic spot landscapes. When the organic matters in the sewage are decomposed by microorganisms, oxygen in the sewage is consumed, so that the life of aquatic organisms is influenced, and after dissolved oxygen in the sewage is exhausted, the organic matters are subjected to anaerobic decomposition to generate unpleasant gases such as hydrogen sulfide and mercaptan, so that the water quality is further deteriorated. At present, industrial water pollution and domestic water pollution are common, and the mode of domestic sewage treatment is various, but when most domestic sewage treatment equipment is used for treating sewage at present, the treatment cost is higher, the structure of the treatment equipment is more complex, the sewage treatment effect is poor, and especially when the treatment of hospital sewage is carried out, effective sewage treatment cannot be carried out.

In order to solve the technical problem, patent ZL201620110256.2 discloses a hospital sewage treatment device, which comprises a sewage treatment main body, wherein a sewage modulation chamber is arranged at the front end of the sewage treatment main body, a filter grid is arranged in the sewage modulation chamber, a water inlet cover is arranged at the upper end of the filter grid, a water inlet pipe joint is arranged on the water inlet cover, a conditioning disinfection spray head and a modulation stirring device are arranged in the sewage modulation chamber, the sewage modulation chamber is connected with an anaerobic chamber, anaerobic bacteria filler is arranged in the anaerobic chamber, a sludge pump is arranged on the bottom surface of the anaerobic chamber, a sewage pump is arranged on one side of the anaerobic bacteria filler, the anaerobic chamber is connected with an aerobic treatment chamber, the sewage pump is connected with an aerator on the bottom surface of the aerobic treatment chamber, a membrane bioreactor is arranged in the aerobic treatment chamber, the aerobic treatment chamber is connected with a settling chamber, and a settling chamber sludge pump is arranged at the bottom of the settling chamber, the sedimentation chamber is connected with the disinfection chamber, a disinfection device is arranged in the disinfection chamber, the disinfection device comprises a glass tube, a sterilization lamp is arranged in the glass tube, and a water outlet pipe joint is arranged on the disinfection chamber. Although the technical scheme can disinfect and sterilize hospital sewage to a certain extent, metal fragments or glass fragments may inevitably exist in the hospital sewage, and it is difficult to find that once the sewage enters the sewage treatment system, inevitable damage can be caused to devices in the sewage treatment system, which brings troubles to later maintenance, and improvement is urgently needed.

Disclosure of Invention

In view of the above-mentioned defects or shortcomings in the prior art, the present application aims to provide a medical sewage pretreatment device capable of effectively filtering out metal fragments or glass fragments to ensure normal operation compared with the prior art.

The application aims at providing a compare in prior art, can effectively filter metal piece or glass piece wherein with the medical sewage pretreatment device of guarantee normal operating.

In a first aspect, a medical wastewater pretreatment device comprises: the system comprises a first pretreatment unit, a second pretreatment unit and a transition pipeline for connecting the first pretreatment unit and the second pretreatment unit; the first pre-processing unit includes: the device comprises a first pretreatment box with a cuboid structure and a plate-type first filter screen matched and connected with the first pretreatment box; an insertion opening is formed in one side wall of the first pretreatment box, and a clamping groove with an upward inclined notch is formed in the inner wall, corresponding to the insertion opening, of the first pretreatment box; the first filter screen penetrates through the insertion hole, and the free end of the first filter screen can be tightly clamped with the clamping groove; the clamping groove is lower than the insertion hole; a limiting plate exposed outside the first pretreatment tank is arranged at one end, relatively close to the insertion opening, of the first filter screen; the top of the first pretreatment tank is provided with a water inlet pipe, and the bottom of the first pretreatment tank is provided with a water outlet fixedly connected with the first end of the transition pipeline; the second preprocessing unit includes: the second pretreatment tank is of a cylinder structure, and the inverted cone-shaped second filter screen is arranged in the second pretreatment tank; the top of the second pretreatment tank is provided with a water inlet which is fixedly connected with the second end of the transition pipeline and is positioned above the second filter screen, and the bottom of the second pretreatment tank is provided with a water outlet; the second filter screen is provided with second filter holes distributed in an annular array, and the inner diameters of the second filter holes are gradually decreased from one side close to the second pretreatment tank to one side far away from the second pretreatment tank; the bottom of the second filter screen is sealed; the top of the second pretreatment box is provided with a driving structure, and an output shaft of the driving structure penetrates through the top of the second pretreatment box and enters the second pretreatment box; the output shaft of the driving structure is in transmission connection with a support shaft, and the side wall of the support shaft is annularly connected with at least two matching and connecting rings distributed along the axial direction of the support shaft; the matching and connecting ring is provided with matching and connecting rods which are arranged in parallel, and the lengths of the matching and connecting rods are gradually reduced from top to bottom; the free ends of all the matching rings are fixedly connected with a rotary brushing rod with a curved longitudinal section, and a curved rotary brushing sleeve attached to the inner wall of the second filter screen is sleeved on the rotary brushing rod; magnetic stripes are symmetrically distributed on the side walls of the two sides of the rotary brushing rod on the rotary brushing sleeve.

According to the technical scheme provided by the embodiment of the application, the top of the second pretreatment tank is provided with a turnover cover, and the driving structure is arranged on the side wall, relatively far away from the second filter screen, of the turnover cover; further comprising: the inverted cone-shaped filter cover is independently arranged and is matched and connected with the second filter screen; the top of the filter cover is fixedly connected with the top of the second filter screen.

According to the technical scheme provided by the embodiment of the application, a circle of liquid inlet rings are annularly arranged on the outer wall of the water inlet pipe; the top of the liquid inlet ring is provided with a plurality of liquid inlets distributed in an annular array, and the bottom of the liquid inlet ring penetrates through the top wall of the first pretreatment tank and enters the first pretreatment tank; and the bottom of the liquid inlet ring is provided with a plurality of liquid spraying ports distributed in an annular array.

According to the technical scheme provided by the embodiment of the application, the transition pipeline comprises: the water inlet is fixedly connected with the water outlet, the water outlet is fixedly connected with the water outlet, and the water outlet is fixedly connected with the water inlet; the collection part is of an inverted cone structure.

According to the technical scheme provided by the embodiment of the application, the transition part is provided with the incident tube, and one end of the incident tube entering the transition part is provided with the scattering block with the sector structure.

According to the technical scheme provided by the embodiment of the application, the method further comprises the following steps: the filter ring is penetrated by the support shaft; the side wall of the filter ring is connected with the top of the filter cover through at least two support rods.

According to the technical scheme provided by the embodiment of the application, the number of the matching rods is two; the relatively uppermost adaptor rod comprises: a first matching section fixedly connected with the matching ring, a second matching section fixedly connected with the first matching section and a third matching section fixedly connected with the second matching section; the third matching section is fixedly connected with the top of the rotary brushing rod; the first matching section and the third matching section are rigid sections; the second matching section is an elastic section; the matching rod which is relatively positioned at the lower part is rotatably connected with the rotary brushing rod.

According to the technical scheme provided by the embodiment of the application, a cavity is arranged in the rotary brushing rod, and a disinfection block is arranged in the cavity; and through holes are formed in the top wall and the bottom wall of the rotary brushing rod.

To sum up, the application discloses a medical sewage pretreatment device.

The technical scheme is provided with a first pretreatment unit, a second pretreatment unit and a transition pipeline for connecting the first pretreatment unit and the second pretreatment unit, wherein the first pretreatment unit and the second pretreatment unit are connected in sequence. Wherein: first preprocessing unit is equipped with the first filter screen that can insert first preprocessing incasement, and the sewage that gets into it from the inlet tube gets into first preprocessing unit and runs through first filter screen, and the slice or the thing piece of great point that mix the area in the sewage are held back by first filter screen, then, and the filterable sewage of through first filter screen gets into the transition pipeline from the outlet to get into the second preprocessing unit through the transition pipeline. After entering the second pretreatment unit, the sewage passes through the second filter screen with an inverted cone structure, metal fragments or glass fragments mixed in the sewage are intercepted on the second filter screen, in the process of entering the sewage, the driving mechanism drives the supporting shaft to rotate, and in the process of rotating the supporting shaft, the rotating and brushing rod is driven to be attached to the inner wall of the second filter screen to rotate, on one hand, in the process of rotating the rotating and brushing rod, the rotating and brushing rod can stir the entering water flow, so that fine and broken parts (including but not limited to metal fragments, glass fragments and other solid fragments which cannot be filtered by the first filter screen) doped in the water flow can fall down, on the other hand, in view of the fact that the aperture of the second filter hole is gradually changed, the water flow cannot be sprayed out from the second filter hole, the fine and broken parts doped in the water flow can be further intercepted, the rotating and brushing rod is attached to the inner wall of the second filter screen to rotate, and the metal fragments or the glass fragments intercepted on the second filter screen are scraped down, wherein, the metal fragments can be attracted by the magnetic strip and attached on the rotary brushing sleeve; the glass fragments or other solid fragments fall to the bottom of the second filter screen, and are collected conveniently after being collected to the bottom of the second filter screen. Based on above-mentioned structure, first preprocessing unit and second preprocessing unit among this technical scheme can be in proper order to the great thing piece in the hospital sewage, the metal piece (and/or glass piece, solid piece) filters, and follow-up sewage treatment system is continued to get into to the rivers of second preprocessing unit delivery port exhaust, carries out subsequent disinfection and isolation purification operation.

According to the technical scheme, the inverted cone-shaped filter cover structure is additionally arranged on the second filter screen, sewage entering the second pretreatment unit enters the second pretreatment unit and then enters the second filter screen of the structure through the inverted cone-shaped filter cover, metal fragments or glass fragments mixed in the sewage are intercepted on the filter cover, the driving mechanism drives the supporting shaft to rotate in the sewage entering process, the rotary brushing rod is driven to be attached to the inner wall of the filter cover to rotate in the rotating process, and the metal fragments or the glass fragments intercepted on the filter cover are brushed down, wherein the metal fragments can be attracted by the magnetic stripe and attached to the rotary brushing cover; the glass fragments fall to the bottom of the filter cover, so that the glass fragments can be collected conveniently after being collected to the bottom of the filter cover. This design can protect the second filter screen effectively.

According to the technical scheme, the outer wall of the water inlet pipe is annularly provided with the circle of the liquid inlet ring, primary disinfection liquid which is prepared in an external mode enters from the liquid inlet, then is sprayed on the first filter screen intermittently through the liquid spraying port, or is sprayed on the first filter screen before the first filter screen is required to be taken out, so that preliminary disinfection is carried out to prevent secondary damage caused by residual germs when the first filter screen is taken out.

The concrete structure of transition pipeline has been optimized among this technical scheme, and it includes promptly: the water inlet is fixedly connected with the water outlet, the water outlet is fixedly connected with the water outlet, and the water outlet is fixedly connected with the water inlet; the collection part is of an inverted cone structure. Furthermore, the transition part is provided with an incident tube, one end of the incident tube, which enters the transition part, is provided with a scattering block with a sector structure, and the scattering block continuously scatters the disinfection liquid introduced into the incident tube into the transition part so as to disinfect the transition part and also can disinfect the water flow flowing through the transition part. More importantly, the water flow scattered by the radiating block can also clean medical residues possibly left on the transition part.

Still optimized among this technical scheme and located the structure of joining in marriage the pole that connects of top relatively, it includes: a rigid first matching section, an elastic second matching section and a rigid third matching section which are connected in sequence. In the use, the top of the rotary-brushing rod can vibrate along with the rotary-brushing rod, so that metal fragments or glass fragments on the filter cover or the second filter screen can be cleaned, and the filter cover or the second filter screen can be prevented from being rubbed all the time.

In the technical scheme, a filter ring for the support shaft to penetrate through is also arranged; the side wall of the filter ring is connected with the top of the filter cover through at least two support rods. Based on this design, when the filter mantle needs to be taken out, direct operation bracing piece can. In addition, in this technical scheme, still further optimized the structure of rotating the brush pole, can be provided with inside from disinfection module in the second pretreatment unit, combine above-mentioned design, step by step disinfection, can play more and more continuous disinfection and isolation effect.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic view showing the overall structure of a medical sewage pretreatment device;

FIG. 2 is a schematic structural view of a cross-sectional view of the first pretreatment unit;

FIG. 3 is a schematic structural view of a cross section of a second pretreatment unit;

FIG. 4 is a schematic structural view of a cross section of a second pretreatment unit;

FIG. 5 is a schematic structural view of a cross section of the first pretreatment unit;

fig. 6 is a schematic view showing the overall structure of a medical sewage pretreatment device;

fig. 7 is a schematic view showing the overall construction of a medical sewage pretreatment device;

FIG. 8 is a schematic structural view of a cross section of a second pretreatment unit;

FIG. 8a is a schematic diagram showing the construction of a filter housing in the second pretreatment unit;

FIG. 9 is a schematic structural view of a cross section of a second pretreatment unit;

fig. 10 is a schematic view showing the overall structure of the rotary brush rod.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Please refer to fig. 1, which is a schematic diagram of an overall structure of a medical sewage pretreatment device.

The medical sewage pretreatment device comprises: a first pre-treatment unit 1 and a second pre-treatment unit 2, and a transition pipeline 3 for connecting the first pre-treatment unit 1 and the second pre-treatment unit 2.

Wherein:

please refer to fig. 2, which is a schematic cross-sectional view of the first pretreatment unit.

The first pre-processing unit 1 comprises: the device comprises a first pretreatment box 11 with a cuboid structure and a plate-type first filter screen 12 matched and connected with the first pretreatment box 11; the first pretreatment tank 11 constitutes a main body structure of the first pretreatment unit, which is a rectangular parallelepiped structure, the top of which is provided with a water inlet pipe 113 and the bottom of which is provided with a water outlet fixedly connected with the first end of the transition pipeline 3. Medical sewage enters from the water inlet pipe and is discharged through the water outlet. When passing through the interior of the first preparation tank, it penetrates the first sieve.

As the first pretreatment unit is contacted with the primary medical sewage, the flaky or larger-point substance blocks mixed in the sewage are intercepted by the first filter screen, and then the sewage filtered by the first filter screen enters the transition pipeline from the water outlet and enters the second pretreatment unit through the transition pipeline.

In long-term use, the pieces or larger pieces accumulated on the first screen need to be cleaned so as not to affect the actual use of the first screen, and therefore, the first screen is detachably designed in the present embodiment. Specifically, an insertion opening 111 is formed in a side wall of the first pretreatment tank 11, and a clamping groove 112 with an upward-inclined notch is formed in an inner wall of the first pretreatment tank 11 corresponding to the insertion opening 111.

The process of installing the first filter screen:

the first filter screen 12 penetrates through the insertion opening 111, and the free end of the first filter screen can be clamped with the clamping groove 112; the clamping groove 112 is lower than the insertion hole 111; first filter screen is the slope design, prevents that the rivers that get into from inserting the entry and overflowing.

Optionally, the joint groove can be two, and two joint grooves are followed first filter screen inner wall arranges side by side, and when the free end of first filter screen and different joint grooves connect, its inclination is different.

Setting: the clamping groove relatively positioned above is a first clamping groove, and the clamping groove relatively positioned below is a second clamping groove.

When the free end of the first filter screen is matched and connected with the first clamping groove, the inclination angle of the first filter screen is alpha; when the free end of the first filter screen is matched and connected with the second clamping groove, the inclination angle of the first filter screen is beta. The β > α.

When the sewage flow rate entering the first pretreatment tank is low, the first clamping groove is used, so that the first filter screen is put into use in the largest area, and the filtering efficiency is improved.

When the sewage velocity of flow that gets into first preliminary treatment case is great, use second joint groove to furthest with rivers drainage downwards, avoid rivers to gush out when fast and collect and lead to rivers to spill over the emergence of inserted hole phenomenon at first filter screen surface.

Optionally, the first filter screen with the joint groove connects one of serving to be equipped with to keeping away from the end backplate of joint groove one side extension, when taking first filter screen out, end backplate can be used for preventing that the object that holds back on the first filter screen from droing from it.

A limiting plate 121 exposed outside the first pretreatment tank 11 is arranged on one end of the first filter screen 12 relatively close to the insertion opening 111. The design of limiting plate can be with the free end rigid coupling of first filter screen, and when needs were dismantled first filter screen, limiting plate can convenient to use person's operation.

The length of the insertion opening is the same as the width of the first pretreatment tank.

Please refer to fig. 3, which is a schematic diagram of the overall structure of the second preprocessing unit.

The sewage passing through the first pretreatment unit enters the second pretreatment unit through a transition pipeline. The second preprocessing unit 2 includes: a second pretreatment tank 21 of a cylindrical structure and an inverted cone-shaped second sieve 22 built in the second pretreatment tank 21. The second pretreatment box is of a cylinder structure, and a second filter screen in the second pretreatment box is of an inverted cone structure. And after the sewage entering the second pretreatment unit enters the second pretreatment unit, the sewage passes through the second filter screen with the inverted cone-shaped structure, and metal fragments or glass fragments mixed in the sewage are intercepted on the second filter screen.

The top of the second pretreatment tank 21 is provided with a water inlet 23 which is fixedly connected with the second end of the transition pipeline 3 and is positioned above the second filter screen 22, and the bottom of the second pretreatment tank is provided with a water outlet 24; the medical sewage treated by the first pretreatment unit enters from the water inlet and is discharged from the water outlet. And the water flow discharged from the water outlet of the second pretreatment unit continuously enters a subsequent sewage treatment system to perform subsequent disinfection, sterilization and purification operation.

In order to facilitate the interception of metal or glass fragments mixed in the sewage, the second screen 22 is provided with second filtering holes 221 distributed in an annular array, and the inner diameters of the second filtering holes 221 are gradually decreased from one side close to the second pretreatment tank 21 to one side far away from the second pretreatment tank 21; the second screen 22 is sealed at the bottom. During the flow through the second screen, metal or glass fragments are more easily trapped in view of the variation in the aperture of the screen holes. Since the second screen has an inverted cone structure, the metal or glass fragments having a fine crushing structure are more easily collected to the bottom of the second screen.

The top of the second pretreatment tank 21 is provided with a driving structure 4, and an output shaft of the driving structure 4 penetrates through the top of the second pretreatment tank to enter the second pretreatment tank; the output shaft of the driving structure 4 is in transmission connection with a support shaft 41, and the side wall of the support shaft 41 is annularly connected with at least two matching and connecting rings 42 distributed along the axial direction; the adapting ring 42 is provided with adapting rods 43 which are arranged in parallel, and the lengths of the adapting rods 43 are gradually reduced from top to bottom; a rotary brushing rod 44 with a curved longitudinal section is fixedly connected to the free ends of all the mating rings 42, and a curved rotary brushing sleeve 45 attached to the inner wall of the second filter screen 22 is sleeved on the rotary brushing rod 44; magnetic stripes are symmetrically distributed on the side walls of the two sides of the rotary brushing rod 44 on the rotary brushing sleeve 45.

Based on the design, the rotary brushing rod is obliquely and fixedly connected with the supporting shaft through the matching rod and the matching ring, and the inclination angle of the rotary brushing rod is attached to the side wall of the second filter screen. Optionally, the number of the adapting rods is two, and the inclination angle of the rotary brushing rod can be adjusted by adjusting the length between the two adapting rods. The rotary brushing rod is sleeved with a rotary brushing sleeve capable of coating the outer wall of the rotary brushing rod, and two symmetrical magnetic strips are designed on the rotary brushing sleeve.

In the process of sewage entering, the driving mechanism drives the supporting shaft to rotate, and in the rotating process of the supporting shaft, the rotating and brushing rod is driven to be attached to the inner wall of the second filter screen to rotate, on one hand, in the rotating process of the rotating and brushing rod, the rotating and brushing rod can stir the entering water flow, so that fine and broken parts (including but not limited to metal fragments and glass fragments and other solid fragments which cannot be filtered by the first filter screen) doped in the water flow can fall down, on the other hand, in view of the gradual change of the aperture of the second filter hole, the water flow cannot be sprayed out of the second filter hole immediately, so that the fine and broken parts doped in the water flow can be further intercepted, the rotating and brushing rod is attached to the inner wall of the second filter screen to rotate, so that the metal fragments or the glass fragments intercepted on the second filter screen are brushed down, wherein the metal fragments can be attracted by the magnetic strip and are attached to; the glass fragments or other solid fragments fall to the bottom of the second filter screen, and are collected conveniently after being collected to the bottom of the second filter screen. Based on above-mentioned structure, first preprocessing unit and second preprocessing unit among this technical scheme can be in proper order to the great thing piece in the hospital sewage, the metal piece (and/or glass piece, solid piece) filters, and follow-up sewage treatment system is continued to get into to the rivers of second preprocessing unit delivery port exhaust, carries out subsequent disinfection and isolation purification operation.

Please refer to fig. 4, which is a schematic cross-sectional view of a second pretreatment unit. In fig. 4, the filter cover and the second filter screen are in a separated state, and the filter cover is moved downwards and vertically until the top of the filter cover is fixedly connected with the edge of the top of the second filter screen, so that the installation operation of the filter cover is completed.

Can adopt bolted connection between filter bowl and the second filter screen top, at second filter screen top design bolt hole filter bowl top border design bolt through-hole, can fix the two with independent bolt.

Or, directly design the draw-in groove at second filter screen top to the filter bowl top border designs the snap ring, the snap ring can firmly be blocked in the draw-in groove.

The top of the second pretreatment tank 21 is provided with a turnover cover 25, and the driving structure 4 is arranged on the side wall of the turnover cover 25 relatively far away from the second filter screen 22; further comprising: the inverted cone-shaped filter cover 5 is independently arranged and is matched and connected with the second filter screen 22; the top of the filter hood 5 is fixedly connected with the top of the second filter screen 22.

The structure of the filter cover is matched with that of the second filter screen, the filter cover can be arranged in the second filter screen, and the top of the filter cover 5 is fixedly connected with the top of the second filter screen 22 for fixing the filter cover. The fixing manner between the two is not limited.

In this embodiment, the lid in the second pretreatment tank may be opened to facilitate replacement of the filter casing.

The sewage entering the second pretreatment unit enters the second pretreatment unit, then passes through the inverted cone-shaped filter cover and then enters the second filter screen of the structure, metal fragments or glass fragments mixed in the sewage are intercepted on the filter cover, in the sewage entering process, the driving mechanism drives the supporting shaft to rotate, in the rotating process, the rotating and brushing rod is driven to be attached to the inner wall of the filter cover to rotate, the metal fragments or the glass fragments intercepted on the filter cover are brushed down, and the metal fragments can be attracted by the magnetic stripe and attached to the rotating and brushing sleeve; the glass fragments fall to the bottom of the filter cover, so that the glass fragments can be collected conveniently after being collected to the bottom of the filter cover. This design can protect the second filter screen effectively.

When the second filter screen needs to be maintained, the turnover cover is opened, the rotary brushing sleeve is taken down, a new rotary brushing sleeve is replaced, or the rotary brushing sleeve is taken down by using a tool.

Please refer to fig. 5, which is a schematic cross-sectional view of the first pretreatment unit.

A circle of liquid inlet rings 6 are annularly arranged on the outer wall of the water inlet pipe 113; the top of the liquid inlet ring 6 is provided with a plurality of liquid inlets 61 distributed in an annular array, and the bottom of the liquid inlet ring 6 penetrates through the top wall of the first pretreatment tank 11 and enters the interior of the first pretreatment tank; the bottom of the liquid inlet ring 6 is provided with a plurality of liquid spraying ports 62 distributed in an annular array.

The liquid inlet ring 6 plays a role in sealing and drainage, the top of the liquid inlet ring is provided with a liquid inlet, and the bottom of the liquid inlet ring is provided with a liquid spraying port.

The disinfection liquid that outside modulation was accomplished gets into from the inlet, then sprays on intermittently spraying first filter screen through the hydrojet mouth, perhaps sprays on first filter screen before need take out first filter screen to carry out preliminary disinfection and prevent when taking out first filter screen that it is last remaining germ causes the secondary damage.

Please refer to fig. 6, which is a schematic diagram of an overall structure of a medical sewage pretreatment device.

The transition duct 3 comprises: a collecting part 31 fixedly connected with the water outlet, a drainage part 32 fixedly connected with the water inlet 23, and a transition part 33 for communicating the collecting part 31 and the drainage part 32; the collection portion 31 has an inverted cone structure.

In this embodiment, the concrete structure of the transition pipeline is optimized, that is, it includes: the water inlet is fixedly connected with the water outlet, the water outlet is fixedly connected with the water outlet, and the water outlet is fixedly connected with the water inlet; the collection part is of an inverted cone structure.

Further, please refer to fig. 7 for a schematic diagram of an overall structure of a medical sewage pretreatment device. An incident tube 34 is arranged on the transition part 33, and a scattering block 35 with a sector structure is arranged at one end of the incident tube 34 entering the transition part 33. The transition portion is provided with an incident tube, one end of the incident tube, which enters the transition portion, is provided with a scattering block with a fan-shaped structure, and the scattering block continuously scatters the disinfection liquid introduced into the incident tube into the transition portion so as to disinfect the transition portion and disinfect the water flow flowing through the transition portion. More importantly, the water flow scattered by the radiating block can also clean medical residues possibly left on the transition part.

Please refer to fig. 8, which is a schematic cross-sectional view of a second pretreatment unit.

Please refer to fig. 8a, which is a schematic diagram of the overall structure of the filter. [ the filter mantle is also provided with through holes, not marked in the figure ]

Further comprising: a filter ring 7 through which the support shaft 41 passes; the side wall of the filter ring 7 is connected to the top of the filter housing 5 by at least two support rods 71.

In the embodiment, a filter ring for the support shaft to penetrate is further arranged; the side wall of the filter ring is connected with the top of the filter cover through at least two support rods. Based on this design, when the filter mantle needs to be taken out, direct operation bracing piece can.

Please refer to fig. 9, which is a schematic cross-sectional view of a second pretreatment unit.

The number of the matching connecting rods is two; the relatively uppermost coupling lever 43 includes: a first mating section 431 fixedly connected with the mating ring 42, a second mating section 432 fixedly connected with the first mating section 431, and a third mating section 433 fixedly connected with the second mating section 432; the third adapting section 433 is fixedly connected with the top of the rotary brushing rod 44; the first mating section 431 and the third mating section 433 are rigid sections; the second mating segment 432 is an elastic segment; an opposite, lower counter rod 43 is rotatably connected to the rotary brushing rod.

In the above design, there are two mating rods:

relatively uppermost mating rod 43, which includes: a rigid first matching section, an elastic second matching section and a rigid third matching section which are connected in sequence.

The rotary brushing rod is rotatably connected to the lower mating rod 43.

In the use, the top of the rotary-brushing rod can vibrate along with the rotary-brushing rod, so that metal fragments or glass fragments on the filter cover or the second filter screen can be cleaned, and the filter cover or the second filter screen can be prevented from being rubbed all the time.

Please refer to the overall structure diagram of the rotary rod shown in fig. 10. A cavity is arranged in the rotary brushing rod 44, and a disinfection block is arranged in the cavity; the top wall and the bottom wall of the rotary brushing rod 44 are provided with through holes.

In the present embodiment, the structure of the rotary brush rod is further optimized, and the internal self-sterilization module can be provided in the second preprocessing unit.

By combining the design in each embodiment, the step-by-step disinfection can achieve a more continuous disinfection and sterilization effect.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (8)

1. The utility model provides a medical sewage pretreatment device which characterized in that: the method comprises the following steps: a first pretreatment unit (1) and a second pretreatment unit (2), and a transition pipeline (3) for connecting the first pretreatment unit (1) and the second pretreatment unit (2);

the first pre-processing unit (1) comprises: the device comprises a first pretreatment box (11) with a cuboid structure and a plate-type first filter screen (12) matched and connected with the first pretreatment box (11); an insertion opening (111) is formed in one side wall of the first pretreatment box (11), and a clamping groove (112) with an upward-inclined notch is formed in the inner wall, corresponding to the insertion opening (111), of the first pretreatment box (11); the first filter screen (12) penetrates through the insertion hole (111) and the free end of the first filter screen can be tightly clamped with the clamping groove (112); the clamping groove (112) is lower than the insertion hole (111); a limiting plate (121) exposed outside the first pretreatment tank (11) is arranged on one end, close to the insertion opening (111), of the first filter screen (12);

the top of the first pretreatment tank (11) is provided with a water inlet pipe (113), and the bottom of the first pretreatment tank is provided with a water outlet fixedly connected with the first end of the transition pipeline (3);

the second pre-processing unit (2) comprises: a second pretreatment tank (21) with a cylindrical structure and an inverted cone-shaped second filter screen (22) arranged in the second pretreatment tank (21); the top of the second pretreatment tank (21) is provided with a water inlet (23) which is fixedly connected with the second end of the transition pipeline (3) and is positioned above the second filter screen (22), and the bottom of the second pretreatment tank is provided with a water outlet (24); second filter holes (221) distributed in an annular array are formed in the side wall of the second filter screen (22), and the inner diameter of each second filter hole (221) is gradually reduced from one side close to the second pretreatment tank (21) to one side far away from the second pretreatment tank (21); the bottom of the second filter screen (22) is sealed;

the top of the second pretreatment box (21) is provided with a driving structure (4), and an output shaft of the driving structure (4) penetrates through the top of the second pretreatment box and enters the second pretreatment box; an output shaft of the driving structure (4) is in transmission connection with a support shaft (41), and at least two matching and connecting rings (42) distributed along the axial direction of the support shaft (41) are annularly connected to the side wall of the support shaft (41); the matching and connecting ring (42) is provided with matching and connecting rods (43) which are arranged in parallel, and the length of the matching and connecting rods (43) is gradually reduced from top to bottom; the free ends of all the matching rings (42) are fixedly connected with a rotary brushing rod (44) with a curved longitudinal section, and a curved rotary brushing sleeve (45) attached to the inner wall of the second filter screen (22) is sleeved on the rotary brushing rod (44); magnetic stripes are symmetrically distributed on the side walls of the two sides of the rotary brushing rod (44) on the rotary brushing sleeve (45).

2. The medical sewage pretreatment device according to claim 1, characterized in that: the top of the second pretreatment tank (21) is provided with a turnover cover (25), and the driving structure (4) is arranged on the side wall, relatively far away from the second filter screen (22), of the turnover cover (25);

further comprising: the inverted cone-shaped filter cover (5) is independently arranged and is matched and connected with the second filter screen (22); the top of the filter hood (5) is fixedly connected with the top of the second filter screen (22).

3. The medical sewage pretreatment device according to claim 1 or 2, characterized in that: a circle of liquid inlet ring (6) is annularly arranged on the outer wall of the water inlet pipe (113);

the top of the liquid inlet ring (6) is provided with a plurality of liquid inlets (61) distributed in an annular array, and the bottom of the liquid inlet ring (6) penetrates through the top wall of the first pretreatment tank (11) and enters the first pretreatment tank;

the bottom of the liquid inlet ring (6) is provided with a plurality of liquid spraying ports (62) distributed in an annular array.

4. The medical sewage pretreatment device according to claim 3, characterized in that: the transition duct (3) comprises: a collecting part (31) fixedly connected with the water outlet, a drainage part (32) fixedly connected with the water inlet (23), and a transition part (33) for communicating the collecting part (31) with the drainage part (32); the collection part (31) is of an inverted cone structure.

5. The medical sewage pretreatment device according to claim 4, characterized in that: an incident tube (34) is arranged on the transition part (33), and a scattering block (35) with a sector structure is arranged at one end of the incident tube (34) entering the transition part (33).

6. The medical sewage pretreatment device according to claim 2, characterized in that: further comprising: a filter ring (7) through which the support shaft (41) passes;

the side wall of the filter ring (7) is connected with the top of the filter cover (5) through at least two support rods (71).

7. The medical sewage pretreatment device according to claim 6, characterized in that: the number of the matching connecting rods (43) is two;

the relatively uppermost mating rod (43) comprises: a first matching section (431) fixedly connected with the matching ring (42), a second matching section (432) fixedly connected with the first matching section (431), and a third matching section (433) fixedly connected with the second matching section (432); the third matching section (433) is fixedly connected with the top of the rotary brushing rod (44);

the first mating section (431) and the third mating section (433) are rigid sections; the second mating section (432) is an elastic section;

the lower counter rod (43) is rotatably connected to the rotary brushing rod (44).

8. The medical sewage pretreatment device according to claim 7, characterized in that: a cavity is arranged in the rotary brushing rod (44), and a disinfection block is arranged in the cavity; and through holes are formed in the upper top wall and the bottom wall of the rotary brushing rod (44).

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