Anti-blocking radioactive wastewater decay tank

Abstract

The utility model discloses an anti-clogging radioactive wastewater decay pool which comprises a rack, a standing filtering device is arranged on the middle side of the rack, a plurality of decay pool devices are arranged on the right side of the standing filtering device, and each decay pool device comprises a decay pool, an input electric valve, a three-way pipe, an output electric valve and a cleaning assembly. The decay pool is fixedly installed on the rack, the lower side of the input electric valve is fixedly installed on the decay pool, the lower side of the three-way pipe is fixedly connected to the upper side of the input electric valve, the output electric valve is fixedly installed on the lower side of the decay pool, and the cleaning assembly is installed on the upper side of the decay pool. Radioactive sludge at the bottom of the decay tank can be cleaned, and wastewater can be stirred, scattered and secondarily precipitated and filtered, so that the wastewater is not easy to block a pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of radioactive wastewater treatment, in particular to an anti-blocking radioactive wastewater decay tank. Background Technique

[0002] Hospital radioactive wastewater refers to the wastewater containing radioactive nuclides in hospitals. This wastewater mainly comes from medical processes such as using radioactive isotopes for diagnosis and treatment, as well as related laboratory operations, etc. Hospitals generally use a multi-stage decay tank system to treat the wastewater. After a period of natural decay in the wastewater, the radioactive concentration is reduced to a certain standard before it can enter the municipal sewage pipeline for discharge. Hospital radioactive wastewater usually contains a large amount of impurities. Generally, filtering devices such as filter screens are provided in the multi-stage decay tanks of hospital radioactive wastewater to filter the impurities in the wastewater.

[0003] Patent No. CN202321250826.4 proposes a filtering device for a hospital radioactive wastewater decay tank, including a storage tank. The bottom end of the storage tank is connected to a first slag discharge tank and a second slag discharge tank. One end of the first slag discharge tank is also connected to a waste residue tank. By setting a cleaning brush on the first rotating shaft, during the rotation of the first rotating shaft, the bristles contact the primary filter screen, thereby effectively avoiding the blockage of the primary filter screen; through the settings of the storage tank, the first slag discharge tank, the second slag discharge tank, the primary filter screen, the clear liquid tank and the waste residue tank, it can play a role in filtering the wastewater before it is discharged into the multi-stage decay tank system. However, the wastewater needs to be static for a period of time in the decay tank before it can be discharged after reaching the discharge standard. During the static period, impurities are prone to accumulate, forming radioactive sludge at the bottom of the tank, which is easy to block the sewage outlet. When cleaning, it needs to wait until its radioactivity reaches the standard before maintenance can be carried out. There is no sludge cleaning device in the decay tank, so it takes a long time to carry out maintenance after blockage. Its coarse filtration is carried out through a filter screen. When the filter screen needs to be replaced, it has to wait until the radioactive substances on the filter screen reach the discharge standard before the filter screen can be replaced. The maintenance cycle is relatively long. Therefore, those skilled in the art provide an anti-blocking radioactive wastewater decay tank to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-blocking radioactive wastewater decay tank to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A clogging-resistant radioactive wastewater decay pool comprises a frame, a static filter device is arranged on the middle side of the frame, a plurality of decay pool devices are arranged on the right side of the static filter device, the decay pool device comprises: a decay pool, an input electric valve, a three-way pipe, an output electric valve and a cleaning component, the decay pool is fixedly mounted on the frame, the lower side of the input electric valve is fixedly mounted on the decay pool, the lower side of the three-way pipe is fixedly connected to the upper side of the input electric valve, the output electric valve is fixedly mounted on the lower side of the decay pool, the cleaning component is mounted on the upper side of the decay pool, and the three-way pipes of adjacent decay pool devices are interconnected by pipelines.

[0007] As a further solution of the utility model: the cleaning assembly includes: a reduction motor, an output rod, a transmission rod and a driving assembly, the reduction motor is fixedly installed on the upper side of the decay pool through a bracket, the output rod is fixedly installed on the output shaft of the reduction motor, the transmission rod is rotatably connected to the end of the output rod away from the output shaft of the reduction motor through a rotating shaft, and the driving assembly is installed at the end of the transmission rod away from the output rod.

[0008] As a further solution of the utility model: the driving assembly includes: an auxiliary rod, a cleaning rod and a cleaning plate, the lower side of the auxiliary rod is rotatably connected to the upper side of the decay pool through a rotating shaft, the upper side of the auxiliary rod is rotatably connected to the middle side of the transmission rod through a rotating shaft, the cleaning rod is fixedly installed on the left side of the transmission rod, and the cleaning plate is fixedly installed on the lower side of the cleaning rod.

[0009] As a further solution of the utility model: a stirring and crushing device is arranged on the left side of the frame.

[0010] As a further solution of the utility model: the stirring and crushing device includes: a stirring tank, a water inlet, a first water pump and a stirring assembly, the stirring tank is fixedly installed on the left side of the frame, the water inlet is fixedly installed on the left side of the stirring tank, the first water pump input end is fixedly connected to the lower side of the stirring tank, and the stirring assembly is installed on the upper side of the stirring tank.

[0011] As a further solution of the utility model: the stirring assembly includes: a driving motor and a stirring and crushing rod, the driving motor is fixedly installed on the upper side of the stirring pool through a bracket, the stirring and crushing rod is fixedly installed on the output shaft of the driving motor, the stirring and crushing rod is arranged in the stirring pool, and a plurality of fixing plates are arranged on the stirring and crushing rod.

[0012] As a further solution of the utility model: the static filtering device includes: a static tank, a sludge discharge valve and a filter assembly, the static tank is fixedly installed on the frame, the sludge discharge valve is fixedly connected to the lower side of the static tank, and the filter assembly is installed on the upper side of the static tank.

[0013] As a further solution of the utility model: the filter assembly includes: a filter screen and a second water pump, the filter screen is fixedly installed on the upper side of the static pool, the second water pump input end is fixedly connected to the upper side of the static pool, the second water pump output end is fixedly connected to the decay pool, the second water pump input end is arranged on the upper side of the filter screen, the first water pump output end is fixedly connected to the left side of the static pool, and the first water pump output end is arranged on the lower side of the filter screen.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the reduction motor of the cleaning assembly rotates to drive the output rod to rotate, the output rod rotates to drive the transmission rod to rotate, the transmission rod swings left and right under the restriction of the auxiliary rod, the left and right swing of the transmission rod drives the cleaning rod to swing left and right, the left and right swing of the cleaning rod drives the cleaning plate to swing left and right, and the radioactive sludge generated by the static decay pool bottom plate is stirred, so that the bottom of the decay pool is not easily blocked; the radioactive wastewater enters the stirring pool through the water inlet, the driving motor rotates to drive the stirring and crushing rod to rotate, the impurities in the radioactive wastewater are broken up and stirred at the same time, so that the larger impurities therein become smaller impurities, which is beneficial to The wastewater is discharged so that it is not easy to clog the pipe; the wastewater after stirring and breaking up is pumped into the still tank through the first water pump, and is left to stand for a period of time in the still tank. The sludge settles to the bottom of the still tank, and the supernatant is suspended on the upper side of the still tank. The sludge is discharged from the still tank through the sludge discharge valve, and the supernatant passes through the filter and is pumped into the decay tank by the second water pump, so that the lower side of the filter becomes the attachment gathering surface, and the gravity makes it difficult for impurities to accumulate on the lower side of the filter. At the same time, there are fewer impurities in the supernatant, so that the filter is not easy to be clogged. After sedimentation filtration and filter filtration, the secondary filtration is conducive to the smooth discharge of wastewater, so that it is not easy to clog the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is the front view of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the cleaning component of the utility model;

[0018] Figure 4 This is an overall cross-sectional view of the utility model with part of the outer shell removed.

[0019] In the figure: 1, frame; 2, static filtering device; 3, decay tank device; 31, decay tank; 32, input electric valve; 33, three-way pipe; 34, output electric valve; 4, reduction motor; 5, output rod; 6, transmission rod; 7, auxiliary rod; 8, cleaning rod; 9, cleaning plate; 10, stirring tank; 11, water inlet; 12, first water pump; 13, static tank; 14, sludge discharge valve; 15, filter screen; 16, second water pump. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 In an embodiment of the utility model, a blocking-proof radioactive wastewater decay pool comprises a frame 1, a static filter device 2 is arranged on the middle side of the frame 1, and a plurality of decay pool devices 3 are arranged on the right side of the static filter device 2. The decay pool device 3 comprises: a decay pool 31, an input electric valve 32, a three-way pipe 33, an output electric valve 34 and a cleaning component. The decay pool 31 is fixedly mounted on the frame 1, the lower side of the input electric valve 32 is fixedly mounted on the decay pool 31, the lower side of the three-way pipe 33 is fixedly connected to the upper side of the input electric valve 32, the output electric valve 34 is fixedly mounted on the lower side of the decay pool 31, the cleaning component is mounted on the upper side of the decay pool 31, and the three-way pipes 33 of adjacent decay pool devices 3 are connected to each other through pipelines;

[0022] The radioactive wastewater enters the input electric valve 32 through the three-way pipe 33, and then enters the decay pool 31. After being placed in the decay pool 31 for a period of time, the radioactive wastewater reaches the discharge standard after a period of natural decay, and then is discharged through the output electric valve 34;

[0023] The cleaning assembly includes: a reduction motor 4, an output rod 5, a transmission rod 6 and a driving assembly. The reduction motor 4 is fixedly mounted on the upper side of the decay pool 31 through a bracket, the output rod 5 is fixedly mounted on the output shaft of the reduction motor 4, the transmission rod 6 is rotatably connected to the end of the output rod 5 away from the output shaft of the reduction motor 4 through a rotating shaft, and the driving assembly is mounted on the end of the transmission rod 6 away from the output rod 5;

[0024] The driving assembly includes: an auxiliary rod 7, a cleaning rod 8 and a cleaning plate 9, the lower side of the auxiliary rod 7 is rotatably connected to the upper side of the decay pool 31 through a rotating shaft, the upper side of the auxiliary rod 7 is rotatably connected to the middle side of the transmission rod 6 through a rotating shaft, the cleaning rod 8 is fixedly installed on the left side of the transmission rod 6, and the cleaning plate 9 is fixedly installed on the lower side of the cleaning rod 8;

[0025] The reduction motor 4 of the cleaning assembly rotates to drive the output rod 5 to rotate, and the output rod 5 rotates to drive the transmission rod 6 to rotate. The transmission rod 6 swings left and right under the restriction of the auxiliary rod 7. The left and right swing of the transmission rod 6 drives the cleaning rod 8 to swing left and right. The left and right swing of the cleaning rod 8 drives the cleaning plate 9 to swing left and right, stirring the radioactive sludge generated by the static bottom plate of the decay pool 31, so that the bottom of the decay pool 31 is not easily blocked;

[0026] A stirring and crushing device is provided on the left side of the frame 1;

[0027] The stirring and crushing device comprises: a stirring tank 10, a water inlet 11, a first water pump 12 and a stirring assembly, wherein the stirring tank 10 is fixedly mounted on the left side of the frame 1, the water inlet 11 is fixedly mounted on the left side of the stirring tank 10, the input end of the first water pump 12 is fixedly connected to the lower side of the stirring tank 10, and the stirring assembly is mounted on the upper side of the stirring tank 10;

[0028] The stirring assembly includes: a driving motor and a stirring and crushing rod, the driving motor is fixedly mounted on the upper side of the stirring tank 10 through a bracket, the stirring and crushing rod is fixedly mounted on the output shaft of the driving motor, the stirring and crushing rod is arranged in the stirring tank 10, and a plurality of fixing plates are arranged on the stirring and crushing rod;

[0029] The radioactive wastewater enters the stirring tank 10 through the water inlet 11, and the driving motor rotates to drive the stirring and crushing rod to rotate, thereby breaking up the impurities in the radioactive wastewater and stirring the impurities, so that the larger impurities are turned into smaller impurities, which is beneficial to the discharge of the wastewater and makes it less likely to block the pipeline;

[0030] The static filtering device 2 comprises: a static tank 13, a sludge discharge valve 14 and a filter assembly, wherein the static tank 13 is fixedly mounted on the frame 1, the sludge discharge valve 14 is fixedly connected to the lower side of the static tank 13, and the filter assembly is mounted on the upper side of the static tank 13;

[0031] The filter assembly includes: a filter screen 15 and a second water pump 16, the filter screen 15 is fixedly installed on the upper side of the static pool 13, the input end of the second water pump 16 is fixedly connected to the upper side of the static pool 13, the output end of the second water pump 16 is fixedly connected to the decay pool 31, the input end of the second water pump 16 is arranged on the upper side of the filter screen 15, the output end of the first water pump 12 is fixedly connected to the left side of the static pool 13, and the output end of the first water pump 12 is arranged on the lower side of the filter screen 15;

[0032] The wastewater after stirring and breaking is pumped into the still tank 13 through the first water pump 12. After standing in the still tank 13 for a period of time, the sludge settles to the bottom of the still tank 13, and the supernatant is suspended on the upper side of the still tank 13. The sludge is discharged from the still tank 13 through the sludge discharge valve 14. The supernatant passes through the filter screen 15 and is pumped into the decay tank 31 by the second water pump 16, so that the lower side of the filter screen 15 becomes the attachment gathering surface. The gravity makes it difficult for impurities to accumulate on the lower side of the filter screen 15. At the same time, there are fewer impurities in the supernatant, so that the filter screen 15 is not easy to be blocked. After sedimentation filtration and filtration by the filter screen 15, the secondary filtration is conducive to the smooth discharge of wastewater and makes it difficult to block the pipeline.

[0033] The working principle of the utility model is:

[0034] A clogging-proof radioactive wastewater decay pool 31, when in use, radioactive wastewater enters the stirring pool 10 through the water inlet 11, the driving motor rotates to drive the stirring and crushing rod to rotate, the impurities in the radioactive wastewater are broken up and stirred at the same time, so that the larger impurities therein become smaller impurities, the wastewater after the stirring and breaking up treatment is pumped into the static pool 13 through the first water pump 12, and is left to stand in the static pool 13 for a period of time, the sludge settles to the bottom of the static pool 13, the supernatant is suspended on the upper side of the static pool 13, the sludge is discharged from the static pool 13 through the sludge discharge valve 14, the supernatant passes through the filter screen 15, and is pumped into the three-way pipe 33 by the second water pump 16, the radioactive wastewater enters the input electric valve 32 through the three-way pipe 33, and then enters the decay pool 3 1, after being placed in the decay pool 31 for a period of time, the reduction motor 4 of the cleaning component rotates to drive the output rod 5 to rotate, the output rod 5 rotates to drive the transmission rod 6 to rotate, the transmission rod 6 swings left and right under the restriction of the auxiliary rod 7, the transmission rod 6 swings left and right to drive the cleaning rod 8 to swing left and right, the cleaning rod 8 swings left and right to drive the cleaning plate 9 to swing left and right, and the radioactive sludge generated by the static bottom plate of the decay pool 31 is stirred, so that the bottom of the decay pool 31 is not easy to be blocked, and the radioactive wastewater reaches the discharge standard after a period of natural decay, and then is discharged through the output electric valve 34. The utility model can clean the radioactive sludge at the bottom of the decay pool 31, stir and disperse the wastewater and perform secondary sedimentation and filtration, so that it is not easy to block the pipeline.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clogging-resistant radioactive wastewater decay pool, comprising a frame (1), characterized in that: A stationary filter device (2) is arranged at the middle side of the frame (1), and a plurality of decay pool devices (3) are arranged on the right side of the stationary filter device (2). The decay pool device (3) comprises: a decay pool (31), an input electric valve (32), a three-way pipe (33), an output electric valve (34) and a cleaning component. The decay pool (31) is fixedly mounted on the frame (1), the lower side of the input electric valve (32) is fixedly mounted on the decay pool (31), the lower side of the three-way pipe (33) is fixedly connected to the upper side of the input electric valve (32), the output electric valve (34) is fixedly mounted on the lower side of the decay pool (31), and the cleaning component is mounted on the upper side of the decay pool (31).

2. The anti-clogging radioactive wastewater decay pool according to claim 1, characterized in that: The cleaning assembly comprises: a reduction motor (4), an output rod (5), a transmission rod (6) and a driving assembly, wherein the reduction motor (4) is fixedly mounted on the upper side of the decay pool (31) via a bracket, the output rod (5) is fixedly mounted on the output shaft of the reduction motor (4), the transmission rod (6) is rotatably connected to an end of the output rod (5) away from the output shaft of the reduction motor (4) via a rotating shaft, and the driving assembly is mounted on an end of the transmission rod (6) away from the output rod (5).

3. The anti-clogging radioactive wastewater decay pool according to claim 2, characterized in that: The driving assembly comprises: an auxiliary rod (7), a cleaning rod (8) and a cleaning plate (9); the lower side of the auxiliary rod (7) is rotatably connected to the upper side of the decay pool (31) via a rotating shaft; the upper side of the auxiliary rod (7) is rotatably connected to the middle side of the transmission rod (6) via a rotating shaft; the cleaning rod (8) is fixedly mounted on the left side of the transmission rod (6); and the cleaning plate (9) is fixedly mounted on the lower side of the cleaning rod (8).

4. The anti-clogging radioactive wastewater decay pool according to claim 3, characterized in that: A stirring and crushing device is arranged on the left side of the frame (1).

5. The anti-clogging radioactive wastewater decay pool according to claim 4, characterized in that: The stirring and crushing device comprises: a stirring tank (10), a water inlet (11), a first water pump (12) and a stirring assembly, wherein the stirring tank (10) is fixedly mounted on the left side of a frame (1), the water inlet (11) is fixedly mounted on the left side of the stirring tank (10), an input end of the first water pump (12) is fixedly connected to the lower side of the stirring tank (10), and the stirring assembly is mounted on the upper side of the stirring tank (10).

6. The anti-clogging radioactive wastewater decay pool according to claim 5, characterized in that: The stirring assembly comprises: a driving motor and a stirring and crushing rod, wherein the driving motor is fixedly mounted on the upper side of the stirring pool (10) via a bracket, and the stirring and crushing rod is fixedly mounted on the output shaft of the driving motor. The stirring and crushing rod is arranged in the stirring pool (10), and a plurality of fixing plates are arranged on the stirring and crushing rod.

7. The anti-clogging radioactive wastewater decay pool according to claim 6, characterized in that: The static filtering device (2) comprises: a static tank (13), a sludge discharge valve (14) and a filter assembly, wherein the static tank (13) is fixedly mounted on a frame (1), the sludge discharge valve (14) is fixedly connected to the lower side of the static tank (13), and the filter assembly is mounted on the upper side of the static tank (13).

8. The anti-clogging radioactive wastewater decay pool according to claim 7, characterized in that: The filter assembly comprises: a filter screen (15) and a second water pump (16); the filter screen (15) is fixedly mounted on the upper side of the static pool (13); the input end of the second water pump (16) is fixedly connected to the upper side of the static pool (13); the output end of the second water pump (16) is fixedly connected to the decay pool (31); the input end of the second water pump (16) is arranged on the upper side of the filter screen (15); the output end of the first water pump (12) is fixedly connected to the left side of the static pool (13); and the output end of the first water pump (12) is arranged on the lower side of the filter screen (15).

Images