CN118598318A - Hospital sewage temporary emergency treatment device - Google Patents

Abstract

The present invention relates to the technical field of sewage treatment, and specifically to a temporary emergency treatment device for hospital sewage. A treatment tank is connected to a connecting pipe through a drainage pipe, and a multi-stage filtering structure is arranged in the treatment tank. The multi-stage filtering structure includes a first filter cartridge opened at both ends and a second filter cartridge opened at one end. The first filter cartridge is fixedly arranged in the treatment tank, and a bottom plate assembly covering either end is arranged on the first filter cartridge. The bottom plate assembly is used to move particles to contact the inner wall of the first filter cartridge, and a plurality of filtering holes are arranged on the bottom plate assembly. The second filter cartridge is provided with a plurality of drainage holes, which are used to solve the technical problem that wastewater that has not been completely purified directly enters the sewage treatment equipment of the hospital due to improper operation or equipment failure, and that the solid particles contained in the wastewater that has not been completely purified cause clogging of the treatment tank.

Description

Hospital sewage temporary emergency treatment device

Technical Field

The invention relates to the technical field of sewage treatment, and in particular to a temporary emergency treatment device for hospital sewage.

Background Art

Hospital sewage treatment is to purify and disinfect the sewage generated by the hospital to eliminate or reduce the pollutants and pathogenic microorganisms in it, and ensure that its discharge meets environmental protection standards. Hospital sewage usually contains a large number of pathogenic microorganisms, toxic and harmful chemicals, and other organic pollutants that are discharged in a classified manner. Therefore, the main purpose of hospital sewage treatment is to prevent these harmful substances from causing harm to the environment and public health.

For wastewater containing high concentrations of toxic substances, that is, wastewater with excessive heavy metals, hospitals usually set up special pretreatment facilities. Generally, it will be stored in a specific sewage storage area. For this type of pretreated sewage, it will be further filtered and discharged through sewage treatment equipment. However, due to improper operation or equipment failure, the wastewater that has not been completely purified will directly enter the hospital's sewage treatment equipment. In this case, these high-concentration toxic substances will enter the environment with the discharged water, causing secondary pollution.

Summary of the invention

The purpose of the present invention is to provide a temporary emergency treatment device for hospital sewage, which is used to solve the technical problem that due to improper operation or equipment failure, wastewater that has not been completely purified will directly enter the hospital's sewage treatment equipment, and the solid particles contained in the incompletely purified wastewater will cause blockage of the treatment tank.

The present invention is achieved through the following technical solutions:

A temporary emergency treatment device for hospital sewage, comprising sewage treatment equipment and a connecting pipe connected to the sewage treatment equipment, and also comprising a treatment tank, the treatment tank being connected to the connecting pipe through a drainage pipe, a first electromagnetic valve being provided at the connection point between the sewage treatment equipment and the connecting pipe, a second electromagnetic valve being provided at the connection point between the drainage pipe and the connecting pipe, a multi-stage filtering structure being provided in the treatment tank, the multi-stage filtering structure comprising a first filter cartridge open at both ends and a second filter cartridge open at one end, the first filter cartridge being fixedly provided in the treatment tank, a bottom plate assembly covering either end being provided on the first filter cartridge, the bottom plate assembly being used to move particles to contact with the inner wall of the first filter cartridge, a plurality of filtering holes being provided on the bottom plate assembly, and an angle between the bottom plate assembly and the inner wall of the first filter cartridge being an acute angle, and a plurality of drainage holes being provided on the second filter cartridge;

A rotating assembly is also provided on the top of the processing tank, and the rotating assembly includes a driving device and a stirring shaft, the driving device and the stirring shaft are connected, and the stirring shaft is rotatably arranged on the bottom plate assembly after movably passing through the processing tank, and at least one cleaning rod is also provided on the stirring shaft, and the cleaning rod is used to contact the particles on the bottom plate assembly;

The second filter cartridge is rotatably arranged on the inner wall of the processing tank, and the stirring shaft movably penetrates the bottom plate assembly and is connected to the closed end of the second filter cartridge. The second filter cartridge is sleeved on the outer wall of the first filter cartridge. The first filter cartridge is provided with at least one through hole, and the second filter cartridge is provided with at least one guide hole. The side wall of the processing tank is also provided with a material receiving container with the same number as the through holes. The material receiving container is connected with the processing tank. When the second filter cartridge drives the guide hole to rotate to the through hole, the through hole is connected with the material receiving container through the guide hole, and the cleaning rod pushes the particles into the material receiving container during the rotation.

Furthermore, the bottom plate assembly includes a support plate and a bearing plate, the bearing plate is connected to the end of the first filter cartridge through the support plate, and the angle between the support plate and the inner wall of the first filter cartridge is acute, and a plurality of filter holes are arranged on the support plate at intervals.

Furthermore, the included angle between the support plate and the inner wall of the first filter cartridge is 45°-80°.

Furthermore, a gap is preset between the cleaning rod and the supporting plate, and a plurality of arc-shaped plates are arranged at intervals on the stirring plate.

Furthermore, a shell with an open end is provided on the end of the cleaning rod close to the inner wall of the first filter cylinder, and a conical block is sleeved in the shell, and the conical block is connected to the inner wall of the shell through a compression spring.

Furthermore, inclined plates cooperating with the tapered blocks are arranged on both sides of the guide hole.

Further, the bottom wall of the guide hole and the bottom wall of the through hole are located on the same horizontal line.

Furthermore, it also includes a plurality of moving rods, and an annular block is also arranged at the bottom of the first filter cylinder, and the annular block is provided with slide grooves equal to the number of the moving rods, one end of the plurality of moving rods is slidably connected with the corresponding slide grooves through a slider, and the other ends of the plurality of moving rods are all connected to the moving block, a threaded hole is opened on the moving block, a threaded section matching the threaded hole is partially opened on the stirring shaft, and the moving block is threadedly arranged on the stirring shaft, and a plurality of cleaning rods are arranged on the side of the moving rod facing the filter hole, and when the moving rod moves up and down in the vertical direction, the cleaning rod is driven to move up and down in the filter hole.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

1. In the present application, a support plate and a carrier plate are provided, the carrier plate is connected to the end of the first filter cartridge through the support plate, and the angle between the support plate and the inner wall of the first filter cartridge is acute, a plurality of filter holes are arranged on the support plate at intervals, the carrier plate is connected to the end of the first filter cartridge through the support plate, the support plate can be a plurality of inclined plate bodies connected to the carrier plate, so that it covers the bottom end of the first filter cartridge, and the acute angle is set to have a certain inclination angle, so that the particles on the support plate can roll down to the edge of the first filter cartridge, so as to avoid excessive particles blocking the filter holes, thereby affecting the filtering effect;

2. In the present application, the particles in the filter holes can be squeezed out by the contact between the curved plate and the particles in the filter holes. Compared with the forced squeezing of the cleaning rod, the curved plate will adopt a more gentle squeezing method when contacting the particles in the filter holes, avoiding direct forced squeezing. This relatively gentle squeezing effect is conducive to preventing the filter holes from being seriously blocked or the particles from being crushed;

3. In the present application, a cleaning rod is arranged parallel to the support plate, and the cleaning rod contacts the inner wall of the first filter cartridge through a conical block, so that the conical block drives the particles on the edge of the inner wall of the first filter cartridge to move. When the conical block contacts the edge of the inner wall of the first filter cartridge, the conical block is squeezed, and the compression spring is squeezed to make the conical block enter the outer shell. After the conical block moves to the through hole, the conical block is not squeezed, and the compression spring restores the elastic force, and the conical block moves into the through hole and the guide hole, which can give a thrust to the particles placed in the through hole and the guide hole again, so that the particles placed in the through hole and the guide hole are pushed into the receiving container by the conical block. In this way, the particles in the through hole and the guide hole can be effectively removed, thereby improving the filtration efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

FIG1 is a schematic diagram of the connection structure between the treatment tank and the sewage treatment equipment of the present invention;

FIG2 is a schematic diagram of the internal structure of a treatment tank according to the present invention;

FIG3 is a schematic diagram of the matching structure of the first filter cartridge and the second filter cartridge of the present invention;

FIG4 is a schematic diagram of the through-hole structure of the first filter cartridge of the present invention;

FIG5 is a schematic diagram of the matching structure of the cleaning rod and the housing of the present invention;

FIG. 6 is a schematic diagram of the guide hole structure of the second filter cartridge of the present invention.

Marks and corresponding parts names in the attached drawings:

1- sewage treatment equipment; 2- connecting pipe; 3- treatment tank; 4- drainage pipe; 5- first filter cartridge; 6- second filter cartridge; 7- filter hole; 8- drainage hole; 9- stirring shaft; 10- driving device; 11- cleaning rod; 12- supporting plate; 13- bearing plate; 14- through hole; 15- guide hole; 16- housing; 17- conical block; 18- compression spring; 19- moving rod; 20- annular block; 21- moving block; 22- cleaning rod; 23- receiving container; 24- inclined plate.

DETAILED DESCRIPTION

In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary implementation modes of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

Example:

As shown in Figures 1 to 6, the temporary emergency treatment device for hospital sewage includes a sewage treatment device 1 and a connecting pipe 2 connected to the sewage treatment device 1, and also includes a treatment tank 3. The treatment tank 3 is connected to the connecting pipe 2 through a drainage pipe 4. A first electromagnetic valve is provided at the connection point between the sewage treatment device 1 and the connecting pipe 2, and a second electromagnetic valve is provided at the connection point between the drainage pipe 4 and the connecting pipe 2. A multi-stage filtering structure is provided in the treatment tank 3. The multi-stage filtering structure includes a first filter cartridge 5 with two ends open and a second filter cartridge 6 with one end open. The first filter cartridge 5 is fixedly arranged in the treatment tank 3. A bottom plate assembly covering either end is provided on the first filter cartridge 5. The bottom plate assembly is used to move particles to contact with the inner wall of the first filter cartridge 5, and a plurality of filter holes 7 are provided on the bottom plate assembly, and a plurality of drainage holes 8 are provided on the second filter cartridge 6.

A rotating assembly is also provided on the top of the processing tank 3, and the rotating assembly includes a driving device 10 and a stirring shaft 9. The driving device 10 is connected to the stirring shaft 9. After the stirring shaft 9 moves through the inner wall of the processing tank 3, it is rotatably arranged on the bottom plate assembly, and at least one cleaning rod 11 is also provided on the stirring shaft 9, and the cleaning rod 11 is used to contact the particles on the bottom plate assembly.

In the present application, a heavy metal detector for detecting sewage can be set at the connecting pipe 2. When it is detected that the heavy metal exceeds the standard, it means that the wastewater that has not been completely purified has entered the sewage treatment equipment 1. At this time, the controller controls the first electromagnetic valve to close and opens the second electromagnetic valve. The wastewater enters the treatment tank 3 through the second battery valve. The wastewater first enters the first filter cartridge 5. Since the incompletely purified wastewater contains some incompletely degraded solid particles, and the heavy metal ions will be adsorbed on the incompletely degraded organic matter to form larger flocculent particles, and will also adhere to some solid particles, these particles in the wastewater will be filtered by the filter holes 7 on the bottom plate assembly, so that they remain on the bottom plate assembly, and the bottom plate assembly moves some particles to the edge of the first filter cartridge 5 to avoid too many particles blocking the filter holes 7, thereby affecting the filtering effect; it should also be mentioned here that the second electromagnetic valve will be opened and closed intermittently to control the wastewater volume entering the treatment tank 3 to avoid the continuous flushing of wastewater in the first filter cartridge 5, thereby causing the particles close to the edge of the first filter cartridge 5 to be flushed to the area of the filter holes 7;

However, some particles will be washed down and stuck in the filter holes 7 and cannot be moved to the edge of the first filter cartridge 5 through the bottom plate assembly. In this case, after each time the second solenoid valve is closed, a time is preset to start the drive device 10. The drive device 10 is a motor. For example, it is preset that 2 minutes after the second solenoid valve is closed, the cleaning rod 11 on the stirring shaft 9 is driven by the motor to move. The cleaning rod 11 rotates on the bottom plate assembly to push the particles stuck in the filter holes 7 so that the particles in the filter holes 7 can be ejected. The bottom plate assembly moves the ejected particles to the edge of the first filter cartridge 5 to prevent the particles from clogging the filter holes 7.

It should also be mentioned here that a number of drainage holes 8 are provided on the second filter cartridge 6, and a flocculant is placed at the bottom of the treatment tank 3, so that the wastewater filtered from the second filter cartridge 6 enters the bottom of the treatment tank 3 to react with the flocculant. Since the solid particles occupy a certain space, they will prevent the heavy metal ions in the water from directly contacting the flocculant. And some suspended solids include fine particles, pathogens, bacteria and other biomass. These solid particles wrap the heavy metal ions, hindering the direct contact between the flocculant and the heavy metal ions. Therefore, the solid particles have been filtered out on the first filter cartridge 5, which can prevent the heavy metal ions on the surface of the particles from directly reacting with the flocculant, reducing the effective contact opportunity.

The second filter cartridge 6 is rotatably arranged on the inner wall of the processing tank 3, and the stirring shaft 9 is movably connected to the closed end of the second filter cartridge 6 after passing through the support plate 12. The second filter cartridge 6 is sleeved on the outer wall of the first filter cartridge 5. The first filter cartridge 5 is provided with at least one through hole 14, and the second filter cartridge 6 is provided with at least one guide hole 15. The side wall of the processing tank 3 is also provided with a material receiving container 23 with the same number as the through holes 14. The material receiving container 23 is connected with the processing tank 3. When the second filter cartridge 6 drives the guide hole 15 to rotate to the through hole 14, the through hole 14 is connected with the material receiving container 23 through the guide hole 15, and the cleaning rod 11 pushes the particles into the material receiving container 23 during the rotation.

In the present application, during the process of wastewater entering the treatment tank 3, when the through hole 14 and the guide hole 15 are not aligned, the wastewater can be prevented from entering the receiving container 23 through the through hole 14. After the wastewater enters and the second electromagnetic valve is closed, after a certain period of time, the driving device 10 can be used to drive the stirring shaft 9 to rotate. Since the stirring shaft 9 is connected to the bottom of the second filter cartridge 6, and the second filter cartridge 6 is rotatably arranged on the inner wall of the treatment tank 3, the stirring shaft 9 can drive the second filter cartridge 6 to rotate, and when the second filter cartridge 6 rotates, the through hole 14 and the guide hole 15 on the first filter cartridge 5 have two states, one is that the through hole 14 and the guide hole 15 are in an aligned state, that is, a connected state, and the other is that the through hole 14 and the guide hole 15 are not aligned. , that is, the unconnected state. When the guide hole 15 is connected with the through hole 14, the receiving container 23 is connected with the through hole 14 through the guide hole 15. During the rotation of the cleaning rod 11, the particles on the support plate 12 and the particles on the edge of the first filter cartridge 5 are pushed by the cleaning rod 11, and the bottom plate assembly and the first filter cartridge 5 are at an acute angle, that is, there is a certain inclined surface. After the solid particles are pushed, they will reach the edge of the inner wall of the first filter cartridge 5 due to their own inertia. By being pushed by the cleaning rod 11, the particles enter the receiving container 23 from the through hole 14. Such a setting can reduce the accumulation of particles on the support plate 12, and can avoid the gradual obstruction and clogging of the filter holes 7 on the first filter cartridge 5 as the particles continue to accumulate at the edge.

And it is preferred to provide two symmetrical through holes 14, and two symmetrical guide holes 15 are provided on the outer wall of the second filter cartridge 6. The length of the guide hole 15 along the outer wall of the second filter cartridge 6 is greater than the length of the through hole 14 along the outer wall of the first filter cartridge 5. Therefore, when the guide hole 15 is aligned with the through hole 14, the through hole 14 is still connected to the guide hole 15 during the rotation of the guide hole 15, and when the guide hole 15 rotates, the cleaning rod 11 is also rotating. Therefore, the cleaning rod 11 can sweep the particles on the edge of the first filter cartridge 5, and the particles pass through the through hole 14 and the guide hole 15 in turn and enter the receiving container 23. The rotation can be continued in this way. After a certain number of rotations, that is, when the preset time is reached, the guide hole 15 rotates until it does not overlap with the through hole 14, so that the open end of the second filter cartridge 6 blocks the through hole 14. At this time, the second solenoid valve can be controlled to open, so that the wastewater is discharged into the treatment tank 3 again, and the above operation is continued.

Therefore, the present application can not only solve the problem that wastewater that has not been completely purified directly enters the hospital's sewage treatment equipment 1 due to improper operation or equipment failure, but also prevent incompletely degraded solid particles from clogging the treatment tank 3 and affecting the subsequent filtration of the wastewater, and can also fully allow heavy metal ions to react with flocculants.

It should be noted that the bottom plate assembly includes a support plate 12 and a bearing plate 13. The bearing plate 13 is connected to the end of the first filter cartridge 5 through the support plate 12. The angle between the support plate 12 and the inner wall of the first filter cartridge 5 is acute. A plurality of filter holes 7 are arranged on the support plate 12 at intervals.

In the present application, the carrying plate 13 is connected to the end of the first filter cartridge 5 through the support plate 12. The support plate 12 can be a plurality of inclined plates connected to the carrying plate 13 so that it covers the bottom end of the first filter cartridge 5. The acute angle is set to have a certain inclination angle to facilitate the particles on the support plate 12 to roll down to the edge of the first filter cartridge 5.

It should be noted that the angle between the support plate 12 and the inner wall of the first filter cartridge 5 is 45°-80°. Avoid a too small inclination angle so that the solid particles cannot roll off.

It should be noted that the second filter cartridge 6 is rotatably arranged on the inner wall of the treatment tank 3, and the stirring shaft 9 is movably passed through the support plate 12 and connected to the closed end of the second filter cartridge 6, at least one through hole 14 is arranged on the first filter cartridge 5, and an opening and closing component is arranged on the second filter cartridge 6, and the opening and closing component is used to cover the through hole 14 when the second filter cartridge 6 rotates;

The side wall of the processing tank 3 is also provided with material receiving containers 23 with the same number as the through holes 14. The material receiving containers 23 are connected to the processing tank 3. When the opening and closing components do not block the through holes 14, the material receiving containers 23 are connected to the through holes 14. During the rotation of the cleaning rod 11, the particles on the support plate 12 are pushed into the material receiving containers 23.

In the present application, during the process of wastewater entering the treatment tank 3, the opening and closing component at this time blocks the through hole 14 to prevent wastewater from entering the receiving container 23 through the through hole 14. After the wastewater enters and the second electromagnetic valve is closed, after a certain period of time, the driving device 10 can drive the stirring shaft 9 to rotate. Since the stirring shaft 9 is connected to the bottom of the second filter cartridge 6, and the second filter cartridge 6 is rotatably arranged on the inner wall of the treatment tank 3, the stirring shaft 9 can drive the second filter cartridge 6 to rotate, and when the second filter cartridge 6 rotates, the opening and closing component can be used to control the first filter cartridge 6. The through hole 14 on the cylinder 5 is blocked or the blockage is removed. When the opening and closing component does not block the through hole 14, the material receiving container 23 and the through hole 14 are connected. During the rotation of the cleaning rod 11, the particles on the support plate 12 and the particles on the edge of the first filter cylinder 5 are pushed by the cleaning rod 11, so that they enter the material receiving container 23 through the through hole 14 due to the inertia of the particles after being pushed. Such a setting can reduce the accumulation of particles on the support plate 12, and can avoid the gradual blocking and clogging of the filter hole 7 on the first filter cylinder 5 as the particles continue to accumulate at the edge.

It should be noted that the opening and closing assembly includes a preset gap between the outer wall of the first filter cartridge 5 and the inner wall of the treatment tank 3, the open end of the second filter cartridge 6 is located in the gap, and at least one guide hole 15 is provided on the outer wall of the second filter cartridge 6. The second filter cartridge 6 drives the guide hole 15 to rotate to the through hole 14. At this time, the through hole 14 is connected to the material receiving container 23 through the guide hole 15.

Two symmetrical through holes 14 can be preferably provided, and two symmetrical guide holes 15 are provided on the outer wall of the second filter cartridge 6. The length of the guide hole 15 along the outer wall of the second filter cartridge 6 is greater than the length of the through hole 14 along the outer wall of the first filter cartridge 5. Therefore, when the guide hole 15 is aligned with the through hole 14, the through hole 14 is still connected to the guide hole 15 during the rotation of the guide hole 15, and when the guide hole 15 rotates, the cleaning rod 11 is also rotating. Therefore, the cleaning rod 11 can sweep the particles on the edge of the first filter cartridge 5, and the particles pass through the through hole 14 and the guide hole 15 in turn and enter the receiving container 23. The rotation can be continued in this way. After a certain number of rotations, that is, at a preset time, the guide hole 15 rotates until it does not overlap with the through hole 14, so that the open end of the second filter cartridge 6 blocks the through hole 14. At this time, the second solenoid valve can be controlled to open, so that the wastewater is discharged into the treatment tank 3 again, and the above operation is continued.

It should be noted that a gap is preset between the cleaning rod 11 and the supporting plate 12, and a plurality of arc-shaped plates are arranged at intervals on the stirring plate.

In the present application, the particles in the filter hole 7 can be squeezed out by the contact between the arc plate and the particles in the filter hole 7. Compared with the forced squeezing of the cleaning rod 11, the arc plate will adopt a more gentle squeezing method when contacting the particles in the filter hole 7, avoiding direct forced squeezing. This relatively gentle squeezing effect is conducive to preventing the filter hole 7 from being seriously blocked or the particles from being crushed.

It should be noted that a shell 16 with one end open is provided on the end of the cleaning rod 11 close to the inner wall of the first filter cylinder 5 , and a conical block 17 is sleeved in the shell 16 . The conical block 17 is connected to the inner wall of the shell 16 via a compression spring 18 . In the present application, the cleaning rod 11 is arranged parallel to the support plate 12, and the cleaning rod 11 contacts the inner wall of the first filter cartridge 5 through the conical block 17, so that the conical block 17 drives the particles on the edge of the inner wall of the first filter cartridge 5 to move. When the conical block 17 contacts the edge of the inner wall of the first filter cartridge 5, the conical block 17 is squeezed, and the compression spring 18 is squeezed to make the conical block 17 enter the shell 16. After the conical block 17 moves to the through hole 14, the conical block 17 is not squeezed, and the compression spring 18 restores the elastic force, and the conical block 17 moves into the through hole 14 and the guide hole 15, which can give a thrust to the particles placed in the through hole 14 and the guide hole 15 again, so that the particles placed in the through hole 14 and the guide hole 15 are pushed into the receiving container 23 by the conical block 17. In this way, the particles in the through hole 14 and the guide hole 15 can be effectively removed, thereby improving the filtration efficiency. The two sides of the conical block 17 are inclined surfaces. When the inclined surfaces of the conical block 17 contact the inner wall of the through hole 14, a thrust is generated on the inclined surfaces of the conical block 17, so that the conical block 17 moves upward. When the conical block 17 moves upward, the spring is compressed, and the compression of the spring provides space for the conical block 17 to move upward. When the conical block 17 moves up to a certain height, it contacts the inner wall of the first filter cartridge 5 again.

It should be noted that inclined plates 24 are provided on both sides of the guide hole 15 to cooperate with the conical block 17. The angle of the inclined plates 24 provided in the present application can better guide the moving direction of the particles.

It should be noted that the bottom wall of the guide hole 15 and the bottom wall of the through hole 14 are located on the same horizontal line. When the conical block 17 pushes the particles, the particles can directly enter the guide hole 15 from the through hole 14 without causing resistance due to the height difference, thus avoiding the situation that the bottom walls of the through hole 14 and the guide hole 15 are not on the same horizontal line, which easily causes the particles to accumulate in the gap between the two holes.

It should be noted that it also includes a number of moving rods 19, and an annular block 20 is also arranged at the bottom of the first filter cylinder 5. The annular block 20 is provided with a number of slide grooves equal to the number of moving rods 19. One end of the moving rods 19 is slidably connected with the corresponding slide grooves through a slider, and the other ends of the moving rods 19 are all connected to the moving block 21. A threaded hole is opened on the moving block 21, and a threaded section matching the threaded hole is partially opened on the stirring shaft 9. The moving block 21 is threadedly arranged on the stirring shaft 9. A number of cleaning rods 22 are arranged on the side of the moving rod 19 facing the filter hole 7. When the moving rod 19 moves up and down in the vertical direction, it drives the cleaning rod 22 to move up and down in the filter hole 7.

The present application drives the stirring shaft 9 to rotate through the driving device 10. Since one end of the moving rod 19 is slidably connected in the chute, and the chute is arranged in the vertical direction, the moving rod 19 cannot rotate. Due to the spiral shape of the thread, the moving block 21 is connected in the chute through the moving rod 19, and the moving block 21 cannot follow the rotation, and will be forced to move along the axis direction of the stirring shaft 9. Then the moving block 21 drives the moving rod 19 to move in the vertical direction. The clearing rod 22 on the moving rod 19 faces the filter hole 7, and the moving rod 19 drives the clearing rod to move upward in the filter hole 7 to push up the particles stuck in the filter hole 7. Automatic cleaning of the filter hole 7 avoids the tedious operation of manual cleaning.

The sewage in the treatment tank 3 is only used to treat the temporarily leaked liquid, because after the liquid leaks, it will be detected by the heavy metal detector, and the staff will immediately handle it. During the staff's handling process, the leaked liquid has indeed been generated here, and before being detected by the heavy metal detector, it has entered the connecting pipe 2. Therefore, for this part of the sewage, this part of the sewage will be discharged into the treatment tank 3. The flocculant at the bottom of the treatment tank 3 will be set to a certain amount to treat the corresponding sewage capacity. Compared with the existing technology that solid particles react with flocculants, the reaction between the filtered solid particles and the flocculant in this application is stronger than the flocculation effect of the existing technology, saving the amount of flocculant. For only part of the capacity of sewage, setting a certain amount of flocculant can be reasonably handled. After the sewage is treated in the treatment tank 3, the sludge and sewage after flocculation and precipitation will be treated separately after being discharged. There may still be a certain amount of heavy metal ions and fine suspended matter remaining in the sewage. The pre-treated sewage is passed through adsorbent materials such as activated carbon and ion exchange resin to adsorb and remove dissolved heavy metals. And the present application is mainly to filter some solid particles, because the solid particles wrapped in heavy metal ions will hinder the direct contact between the flocculant and the heavy metal ions, so that the flocculation effect is weakened. The present application is not only to filter solid particles. The filtration in the prior art only keeps the solid particles on the filter plate, and some use a scraper to move the solid particles to the edge. However, the volume of the particles of the substances that are not completely degraded in the chemical substances is different. Some are larger and some are smaller. Some solid particles accumulate on the edge of the cylinder wall. Such particles will still accumulate between the filter plates, which will also affect the filtering effect. Some chemical particles are soft. The soft particles are blocked in the filter hole 7. The hard particles and the soft particles are blocked in the filter hole 7. It is difficult to separate them from the filter hole 7. Therefore, the present application not only discharges the particles into the receiving container 23, but also for the soft or hard solid particles blocked in the filter hole 7, the cleaning rod 22 can be pushed out from bottom to top. For soft particles, as more and more soft polymer particles are squeezed into the pores, they produce strong adhesion with the pore wall after deformation. These deformed soft particles seriously hinder the passage of liquid, so the cleaning rod 22 allows the soft particles to gradually escape from the hole under the action of slow and continuous thrust.

The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims (8)

1. A temporary emergency treatment device for hospital sewage, comprising a treatment tank (3), characterized in that a drainage pipe (4) is provided on the treatment tank (3), a multi-stage filtering structure is provided in the treatment tank (3), the multi-stage filtering structure comprises a first filter cartridge (5) with two ends open and a second filter cartridge (6) with one end open, the first filter cartridge (5) is fixedly arranged in the treatment tank (3), a bottom plate assembly covering either end is provided on the first filter cartridge (5), the bottom plate assembly is used to move particles to contact the inner wall of the first filter cartridge (5), a plurality of filtering holes (7) are provided on the bottom plate assembly, and the angle between the bottom plate assembly and the inner wall of the first filter cartridge (5) is an acute angle, and a plurality of drainage holes (8) are provided on the second filter cartridge (6); A rotating assembly is also provided on the top of the processing tank (3), the rotating assembly comprising a driving device (10) and a stirring shaft (9), the driving device (10) and the stirring shaft (9) being connected, the stirring shaft (9) movably passing through the processing tank (3) and then being rotatably provided on the bottom plate assembly, and at least one cleaning rod (11) is also provided on the stirring shaft (9), the cleaning rod (11) being used to contact particles on the bottom plate assembly; The second filter cartridge (6) is rotatably arranged on the inner wall of the processing tank (3), and the stirring shaft (9) is movably connected to the closed end of the second filter cartridge (6) after penetrating the bottom plate assembly. The second filter cartridge (6) is sleeved on the outer wall of the first filter cartridge (5). The first filter cartridge (5) is provided with at least one through hole (14), and the second filter cartridge (6) is provided with at least one guide hole (15). The side wall of the processing tank (3) is also provided with material receiving containers (23) having the same number as the through holes (14). The material receiving containers (23) are connected to the processing tank (3). When the second filter cartridge (6) drives the guide holes (15) to rotate to the through holes (14), the through holes (14) are connected to the material receiving containers (23) through the guide holes (15). During the rotation process, the cleaning rod (11) pushes the particles into the material receiving containers (23). 2. The temporary emergency treatment device for hospital sewage according to claim 1 is characterized in that the bottom plate assembly comprises a support plate (12) and a bearing plate (13), the bearing plate (13) is connected to the end of the first filter cartridge (5) through the support plate (12), and the angle between the support plate (12) and the inner wall of the first filter cartridge (5) is an acute angle, and a plurality of filter holes (7) are arranged on the support plate (12) at intervals. 3. The temporary emergency treatment device for hospital sewage according to claim 2, characterized in that the angle between the support plate (12) and the inner wall of the first filter cylinder (5) is 45°-80°. 4. The temporary emergency treatment device for hospital sewage according to claim 1 is characterized in that a gap is preset between the cleaning rod (11) and the support plate (12), and a plurality of arc-shaped plates are arranged at intervals on the cleaning rod (11). 5. The temporary emergency treatment device for hospital sewage according to claim 1 is characterized in that a shell (16) with an open end is provided on the end of the cleaning rod (11) close to the inner wall of the first filter cylinder (5), and a conical block (17) is sleeved in the shell (16), and the conical block (17) is connected to the inner wall of the shell (16) through a compression spring (18). 6. The temporary emergency treatment device for hospital sewage according to claim 5, characterized in that inclined plates (24) matching with the conical block (17) are arranged on both sides of the guide hole (15). 7. The temporary emergency treatment device for hospital sewage according to claim 5, characterized in that the bottom wall of the guide hole (15) and the bottom wall of the through hole (14) are located on the same horizontal line. 8. The temporary emergency treatment device for hospital sewage according to claim 2 or 3 is characterized in that it also includes a plurality of moving rods (19), an annular block (20) is also arranged at the bottom of the first filter cylinder (5), and the annular block (20) is provided with a number of slide grooves equal to the number of the moving rods (19), one end of the plurality of moving rods (19) is slidably connected to the corresponding slide grooves through a slider, and the other ends of the plurality of moving rods (19) are all connected to the moving block (21), a threaded hole is provided on the moving block (21), a threaded section matching the threaded hole is partially provided on the stirring shaft (9), the moving block (21) is threadedly arranged on the stirring shaft (9), and a plurality of cleaning rods (22) are arranged on the side of the moving rod (19) facing the filter hole (7), and when the moving rod (19) moves up and down in the vertical direction, the cleaning rod (22) is driven to move up and down in the filter hole (7).