A temporary storage device for radioactive wastewater

Abstract

The utility model is a temporary storage device for radioactive wastewater, including a primary decay box, a secondary decay box, a tertiary decay box, a screw conveyor, a support seat, and a bottom plate. The outer walls of the primary decay box, the secondary decay box, and the tertiary decay box are provided with a plurality of legs and fixed to the support seat through the legs. The support seat and the screw conveyor are fixed to the bottom plate, and the screw conveyor is located below the support seat. The bottoms of the primary decay box, the secondary decay box, and the tertiary decay box are provided with a discharge trough, and the bottom of the discharge trough is provided with a guide pipe connected to the screw conveyor. The primary decay box, the secondary decay box, and the tertiary decay box are provided with the same wall scraping mechanism, and the wall scraping mechanism is provided with an anti-blocking mechanism. The top of the primary decay box is provided with a first water inlet, and a water conveying mechanism is provided between the primary decay box, the secondary decay box, and the tertiary decay box. The inner wall of the decay box of the utility model is easy to clean and can effectively avoid blockage.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a temporary storage device for radioactive wastewater. Background Art

[0002] A decay pool is a container used to collect, store and discharge radioactive waste liquid. It is mainly used to store radioactive waste water generated by nuclear medicine departments and is a supporting equipment for nuclear medicine departments in hospitals. In the decay pool, the radioactive waste liquid will decay naturally until it reaches the discharge standard before being discharged.

[0003] When radioactive wastewater is stored in a decay pool, its internal impurities will settle or adhere to the inner wall of the pool. When it is transported to the next level decay pool, a filter will be installed to prevent pipe blockage. However, the filter is prone to blockage after long-term use, affecting the subsequent water delivery effect, and the filter is not easy to disassemble and clean after installation. Summary of the invention

[0004] The utility model aims to solve the deficiencies of the prior art and provides a temporary storage device for radioactive waste water.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temporary storage device for radioactive wastewater, comprising a primary decay box, a secondary decay box, a tertiary decay box, a screw conveyor, a support seat, and a bottom plate. The outer walls of the primary decay box, the secondary decay box, and the tertiary decay box are provided with a plurality of legs and are fixed to the support seat through the legs. The support seat and the screw conveyor are fixed to the bottom plate, and the screw conveyor is located below the support seat. The primary decay box, the secondary decay box, and the tertiary decay box are all provided with a discharge trough at the bottom, and a guide pipe connected to the screw conveyor is provided at the bottom of the discharge trough. The primary decay box, the secondary decay box, and the tertiary decay box are provided with the same wall scraping mechanism inside, and an anti-blocking mechanism is provided on the wall scraping mechanism. A first water inlet is provided at the top of the primary decay box, and a water conveying mechanism is provided between the primary decay box, the secondary decay box, and the tertiary decay box.

[0006] In particular, the scraping mechanism includes a motor and a scraper. The motor is arranged at the top center of the first-stage decay box. The scraper is arranged in the shape of the inner wall of the first-stage decay box and contacts the inner wall. The motor main shaft passes through the first-stage decay box and is fixedly connected to the horizontal plate on the top of the scraper. The scraping structure on the second-stage decay box and the third-stage decay box is installed in the same way as the scraping structure on the first-stage decay box.

[0007] In particular, a reinforcing diagonal rod is provided at the bending part of the scraper.

[0008] Particularly, the anti-blocking mechanism comprises a plurality of blades, which are fixed from top to bottom to the inner side of the contact portion of the scraper and the discharge chute.

[0009] In particular, a first water outlet mesh port is provided on one side of the discharge trough on the first-stage decay box, a second water inlet is provided on one side of the discharge trough on the second-stage decay box, and a second water outlet mesh port is provided on the other side, and a third water inlet is provided on one side of the discharge trough on the third-stage decay box, and a third water outlet mesh port is provided on the other side.

[0010] In particular, the water delivery mechanism includes a first water pump, a second water pump, and a third water pump. The first water pump is installed on the top of the support base between the first-stage decay box and the second-stage decay box, the second water pump is installed on the top of the support base between the second-stage decay box and the third-stage decay box, the third water pump is installed on the top of the support base and is close to the third water outlet network port. The water inlet pipe and the water outlet pipe on the first water pump and the second water pump and the end of the water inlet pipe on the third water pump are all provided with water collecting covers. The water collecting cover on the water inlet pipe of the first water pump is fixedly connected to the outside of the first water outlet network port, the water collecting cover on the water outlet pipe of the first water pump is fixedly connected to the outside of the second water inlet port, the water collecting cover on the water inlet pipe of the second water pump is fixedly connected to the outside of the second water outlet network port, the water collecting cover on the water outlet pipe of the second water pump is fixedly connected to the outside of the third water inlet port, and the water collecting cover on the water inlet pipe of the third water pump is fixedly connected to the outside of the third water outlet network port.

[0011] The beneficial effects of the utility model are as follows: the utility model is provided with a wall scraping mechanism, which is convenient for scraping off impurities attached to the inner wall of the decay box, the first water outlet mesh port, the second water outlet mesh port and the third water outlet mesh port, thereby avoiding clogging of the water outlet mesh port, and the impurities are convenient for regular cleaning, and the cleaning is time-saving and labor-saving; by providing an anti-blocking mechanism and a screw conveyor, the impurities precipitated or cleaned and accumulated in the discharge trough are convenient for crushing and then transported away by the screw conveyor, and the clogging of the guide pipe can be avoided when the impurities are discharged, and the overall use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] In the figure: 1-first decay box; 2-second decay box; 3-third decay box; 4-screw conveyor; 5-support seat; 6-bottom plate; 7-leg; 8-discharging trough; 9-material guide pipe; 10-first water inlet; 11-motor; 12-scraper; 13-blade; 14-first water outlet net; 15-second water inlet; 16-second water outlet net; 17-third water inlet; 18-third water outlet net; 19-first water pump; 20-second water pump; 21-third water pump; 22-water collecting cover; 23-strengthening diagonal rod;

[0014] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] like Figure 1As shown, a temporary storage device for radioactive wastewater includes a primary decay box 1, a secondary decay box 2, a tertiary decay box 3, a screw conveyor 4, a support base 5, and a bottom plate 6. The primary decay box 1, the secondary decay box 2, and the tertiary decay box 3 are provided with a plurality of legs 7 on their outer walls and are fixed to the support base 5 through the legs 7. The support base 5 and the screw conveyor 4 are fixed to the bottom plate 6, and the screw conveyor 4 is located below the support base 5. The primary decay box 1, the secondary decay box 2, and the tertiary decay box 3 are provided with a discharge trough 8 at the bottom, and a guide pipe 9 connected to the screw conveyor 4 is provided at the bottom of the discharge trough 8.

[0017] The first-stage decay box 1, the second-stage decay box 2, and the third-stage decay box 3 are provided with the same wall scraping mechanism, which includes a motor 11 and a scraper 12. The motor 11 is arranged at the top center of the first-stage decay box 1. The scraper 12 is arranged in the same shape as the inner wall of the first-stage decay box 1 and contacts the inner wall. The main shaft of the motor 11 passes into the first-stage decay box 1 and is fixedly connected to the horizontal plate at the top of the scraper 12. The bending part of the scraper 12 is provided with a reinforcing inclined rod 23. The wall scraping structure on the second-stage decay box 2 and the third-stage decay box 3 is installed in the same manner as the wall scraping structure on the first-stage decay box 1.

[0018] The wall scraping mechanism is provided with an anti-blocking mechanism, which includes a plurality of blades 13, which are fixed from top to bottom to the inner side of the portion where the scraper 12 contacts the discharge chute 8;

[0019] A first water inlet 10 is provided on the top of the primary decay box 1, and a water delivery mechanism is provided between the primary decay box 1, the secondary decay box 2, and the tertiary decay box 3; a first water outlet net port 14 is provided on one side of the discharge trough 8 on the primary decay box 1, a second water inlet 15 is provided on one side of the discharge trough 8 on the secondary decay box 2, and a second water outlet net port 16 is provided on the other side; a third water inlet 17 is provided on one side of the discharge trough 8 on the tertiary decay box 3, and a third water outlet net port 18 is provided on the other side;

[0020] The water delivery mechanism includes a first water pump 19, a second water pump 20, and a third water pump 21. The first water pump 19 is installed on the top of the support base 5 between the first decay box 1 and the second decay box 2, the second water pump 20 is installed on the top of the support base 5 between the second decay box 2 and the third decay box 3, and the third water pump 21 is installed on the top of the support base 5 and is close to the third water outlet 18. The water inlet pipe and the water outlet pipe on the first water pump 19, the second water pump 20, and the water inlet pipe end on the third water pump 21 are all A water collecting cover 22 is provided. The water collecting cover 22 on the water inlet pipe of the first water pump 19 is fixedly connected to the outside of the first water outlet network port 14, the water collecting cover 22 on the water outlet pipe of the first water pump 19 is fixedly connected to the outside of the second water inlet port 15, the water collecting cover 22 on the water inlet pipe of the second water pump 20 is fixedly connected to the outside of the second water outlet network port 16, the water collecting cover 22 on the water outlet pipe of the second water pump 20 is fixedly connected to the outside of the third water inlet port 17, and the water collecting cover 22 on the water inlet pipe of the third water pump 21 is fixedly connected to the outside of the third water outlet network port 18.

[0021] When the utility model is working, wastewater enters the primary decay box 1 through the first water inlet 10. After a certain period of time, the first water pump 19 pumps the wastewater after primary decay into the secondary decay box 2 through the first water outlet mesh port 14 and the second water inlet 15. At this time, the motor 11 on the primary decay box 1 is started, and the scraper 12 rotates to start scraping impurities from the inner wall of the primary decay box 1 and the first water outlet mesh port 14. The scraped and precipitated impurities are introduced into the screw conveyor 4 through the corresponding guide pipe 9 and are transported away by the screw conveyor 4. The wastewater treatment steps in the secondary decay box 2 and the tertiary decay box 3 are the same as those in the primary decay box 1.

[0022] The utility model is convenient for scraping off impurities attached to the inner wall of the decay box and each water outlet, avoiding clogging of the water outlet, and the impurities are convenient for regular cleaning, and the cleaning is time-saving and labor-saving; when the impurities are discharged, the impurities precipitated or cleaned and accumulated in the discharge trough 8 are convenient for crushing, and then transported away by the screw conveyor 4, and the clogging of the guide pipe 9 can be avoided when the impurities are discharged, and the overall use is convenient.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A temporary storage device for radioactive wastewater, characterized in that: The invention comprises a primary decay box (1), a secondary decay box (2), a tertiary decay box (3), a screw conveyor (4), a support base (5), and a bottom plate (6); the primary decay box (1), the secondary decay box (2), and the tertiary decay box (3) are provided with a plurality of legs (7) on their outer walls and are fixed to the support base (5) through the legs (7); the support base (5) and the screw conveyor (4) are fixed to the bottom plate (6); the screw conveyor (4) is located below the support base (5); The decay box (2) and the three-stage decay box (3) are both provided with a discharge trough (8) at the bottom, and a material guide pipe (9) connected to the screw conveyor (4) is provided at the bottom of the discharge trough (8). The first-stage decay box (1), the second-stage decay box (2), and the third-stage decay box (3) are provided with the same wall scraping mechanism inside, and an anti-blocking mechanism is provided on the wall scraping mechanism. The first-stage decay box (1) is provided with a first water inlet (10) at the top, and a water conveying mechanism is provided between the first-stage decay box (1), the second-stage decay box (2), and the third-stage decay box (3).

2. A temporary storage device for radioactive wastewater according to claim 1, characterized in that: The wall scraping mechanism comprises a motor (11) and a scraper (12). The motor (11) is arranged at the top center of the primary decay box (1). The scraper (12) is arranged in the same shape as the inner wall of the primary decay box (1) and contacts the inner wall. The main shaft of the motor (11) passes into the primary decay box (1) and is fixedly connected to the horizontal plate on the top of the scraper (12). The wall scraping structure on the secondary decay box (2) and the tertiary decay box (3) is installed in the same manner as the wall scraping structure on the primary decay box (1).

3. A temporary storage device for radioactive wastewater according to claim 2, characterized in that: A reinforcing diagonal rod (23) is provided at the bending position of the scraper (12).

4. A temporary storage device for radioactive wastewater according to claim 2, characterized in that: The anti-blocking mechanism comprises a plurality of blades (13), which are fixed from top to bottom to the inner side of the part of the scraper (12) in contact with the discharge chute (8).

5. A temporary storage device for radioactive wastewater according to claim 1, characterized in that: A first water outlet net port (14) is provided on one side of the discharge trough (8) on the first-stage decay box (1), a second water inlet port (15) is provided on one side of the discharge trough (8) on the second-stage decay box (2), and a second water outlet net port (16) is provided on the other side, and a third water inlet port (17) is provided on one side of the discharge trough (8) on the third-stage decay box (3), and a third water outlet net port (18) is provided on the other side.

6. A temporary storage device for radioactive wastewater according to claim 5, characterized in that: The water delivery mechanism comprises a first water pump (19), a second water pump (20), and a third water pump (21); the first water pump (19) is installed on the top of a support base (5) between a first decay box (1) and a second decay box (2); the second water pump (20) is installed on the top of a support base (5) between a second decay box (2) and a third decay box (3); the third water pump (21) is installed on the top of the support base (5) and is adjacent to a third water outlet network port (18); the water inlet pipe and the water outlet pipe on the first water pump (19), the second water pump (20), and the end of the water inlet pipe on the third water pump (21) A water collecting cover (22) is provided on each of the water inlet pipes of the first water pump (19), the water collecting cover (22) on the water outlet pipe of the first water pump (19) is fixedly connected to the outside of the first water outlet mesh port (14), the water collecting cover (22) on the water outlet pipe of the first water pump (19) is fixedly connected to the outside of the second water inlet port (15), the water collecting cover (22) on the water inlet pipe of the second water pump (20) is fixedly connected to the outside of the second water outlet mesh port (16), the water collecting cover (22) on the water outlet pipe of the second water pump (20) is fixedly connected to the outside of the third water inlet port (17), and the water collecting cover (22) on the water inlet pipe of the third water pump (21) is fixedly connected to the outside of the third water outlet mesh port (18).

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