Filter compaction equipment

Abstract

The invention discloses filter compaction equipment which comprises compaction equipment, an original efficient filter, a filter pressed cake storage container, a loading gantry, a lower structure compaction chamber, an upper structure compaction chamber, a filter loading cabin door, a rammer compactor, a compaction driving device, a pressed cake container extraction trolley, a ventilation and sealing system, a table cover, a loading gantry and a tray. And the table cover and the tray are both mounted on the filter press cake storage container. According to the invention, the final container is covered by keeping the pressure in the compaction cake and the compaction chamber; taking out the container fully filled with the barrel cake; lateral force generated in the compaction process is absorbed by the side wall of the power transverse structure; the waste filter is automatically fed into the compactor, so that direct intervention during normal operation of equipment is reduced to the greatest extent, and the safety of an operator is improved; the optimization of the process not only brings economic benefits, but also reduces radiation to operators.

Description

Technical Field

[0001] The invention relates to the technical field of high-efficiency filter compaction, in particular to a filter compaction device. Background Art

[0002] There are some HEPA filter pressing systems on the market, which usually work in two or even three stages. Although these systems are very effective in reducing volume, they also have great disadvantages. In radioactive sites, HEPA filters accumulate extremely unstable radioactivity and contaminants, so the most common replacement system is the BIBO (Bag-in-Bag-out) system, that is, the filter is packed in a plastic bag and then in the carton of the new filter that replaces it. The BIBO replacement process adopts a universal procedure. Existing systems cannot directly handle HEPA filters because these filters are stored in nuclear facilities and radioactive sites: that is, they are packed in the original bags and placed in the carton of the replacement filter. The compacted cakes produced by existing compaction systems are very dangerous because all the powdery and highly volatile waste accumulated in them are suspended and exposed to the outside, and these compacted cakes are not sealed during transportation management. After these compression processes, due to the high level of separable contamination of the compacted cakes, they must be handled in a hot room, which makes the management, handling and sorting in the final container more complicated. In addition, the external dimensions of the HEPA filters are very large and difficult for a single operator to handle. Summary of the invention

[0003] The object of the present invention is to provide a filter compacting device to solve the problem that the press cakes produced by the existing compacting system proposed in the above background technology are very dangerous because all the powdery and highly volatile wastes accumulated therein are suspended and exposed to the outside, and these press cakes are not sealed during transportation and management, and the external dimensions of the high-efficiency filter are very large and difficult for a single operator to carry.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filter compacting device, comprising a compacting device, an original high-efficiency filter, a particle container, a loading gantry, a lower structure compacting chamber, an upper structure compacting chamber, a filter loading hatch, a tamping machine and a compacting drive device, a cake container extraction trolley, ventilation, a sealing system, a table cover, a loading gantry and a tray, the table cover and the tray are all installed on the filter cake storage container, the original high-efficiency filter, the particle container, the loading gantry, the lower structure compacting chamber, the upper structure compacting chamber, the filter loading hatch, the tamping machine and the compacting drive device, the cake container extraction trolley, ventilation, and a sealing system are all installed on the compacting device, a 100Tn compacting cylinder and a compactor guide system are vertically installed on the upper part of the loading gantry, a cylinder one is installed on the loading gantry, a cylinder two is installed on one side of the upper part of the tray, a Rota column is installed near the cylinder two, a pressure valve is installed near the Rota column, and an extraction mechanism is installed near the tray.

[0005] As a preferred technical solution of the present invention, an L-shaped plate is installed at the lower part of the cylinder 1, a hydraulic cylinder is arranged near the lower part of the pressure valve, and two linear friction bushings are arranged on the inner side of the loading gantry.

[0006] As a preferred technical solution of the present invention, a bench is installed on a side close to the extraction mechanism.

[0007] As a preferred technical solution of the present invention, cylindrical support rods penetrate both sides of the upper part of the loading gantry.

[0008] As a preferred technical solution of the present invention, a compaction plate is provided at the lower part of the two cylindrical support rods, a punching anvil is installed at the upper part of the compaction plate, a non-lubricated bearing is installed at the upper part of the punching anvil, and a bridge is provided on the side close to the punching anvil and the non-lubricated bearing.

[0009] As a preferred technical solution of the present invention, a plurality of side door fixing nuts are detachably connected to the loading gantry, and a plurality of side door fixing screws are arranged on the upper portion of the loading gantry between two cylindrical support rods.

[0010] As a preferred technical solution of the present invention, a ventilation groove one is arranged near the punching anvil, a ventilation groove two is arranged near the compacting plate, and a ventilation groove three is arranged near the extraction mechanism.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The compressor using ICFC technology includes compaction equipment, original high-efficiency filter, particle container, loading gantry, lower structure compaction chamber, upper structure compaction chamber, filter loading hatch, tamping machine and compaction drive, cake container extraction trolley, ventilation and sealing system. Compression system for loading high-efficiency filter directly into sealed bags and new filter cartons that replace filters; the system can compress multiple high-efficiency filters directly in the container for permanent storage; the system covers the final container by maintaining the pressure inside the compacted particles and compaction chamber; remove the container with fully covered cake; use the side wall of the dynamic lateral structure to absorb the lateral force generated during the compaction process; by automatically feeding the waste filter into the compactor, the direct intervention during the normal operation of the equipment is minimized, thereby improving the safety of the operator; the optimization of the process not only brings economic benefits, but more importantly, reduces the radiation exposure of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural display diagram of the pressure valve, L-shaped plate, cylindrical support rod, Rota column and cylinder 2 of the present invention;

[0014] Figure 2 It is a structural display diagram of the hydraulic cylinder, L-shaped plate, cylindrical support rod and cylinder 2 of the present invention;

[0015] Figure 3 It is a cross-sectional view of the present invention;

[0016] Figure 4 It is a bottom display diagram of the present invention;

[0017] Figure 5 It is a rear perspective view of the present invention;

[0018] Figure 6 It is a side perspective view of the present invention;

[0019] Figure 7 A top perspective view of the present invention;

[0020] Figure 8 This is a structural display diagram of the loading gantry of the present invention.

[0021] In the figure: 1. Cylinder 1; 2. Pressure valve; 3. Linear friction bushing; 4. Hydraulic cylinder; 5. Side door fixing nut; 6. Pressure valve; 7. Side door fixing screw; 8. L-shaped plate; 9. Cylindrical support rod; 10. Rota column; 11. Cylinder 2; 12. Ventilation slot 1; 13. Ventilation slot 2; 14. Ventilation slot 3; 15. Loading gantry; 16. Bridge; 17. Non-lubricated bearing; 18. Punching anvil; 19. Compacting plate; 20. Extraction mechanism; 21. Bench; 22. Pallet. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-8The present invention provides a filter compacting device, including a compacting device, an original high-efficiency filter, a particle container, a loading gantry 15, a lower structure compacting chamber, an upper structure compacting chamber, a filter loading hatch, a tamping machine and a compacting drive device, a cake container extraction trolley, ventilation, a sealing system, a platform cover, a loading gantry 15 and a tray 22, the platform cover and the tray 22 are all installed on the original high-efficiency filter, the original high-efficiency filter, the cake storage container, the loading gantry 15, the lower structure compacting chamber, the upper structure compacting chamber, the filter loading hatch, the tamping machine and the compacting drive device, the cake container extraction trolley, ventilation, and a sealing system are all installed on the compacting device, a 100Tn compacting cylinder and a compacting machine guide system are vertically installed on the upper part of the loading gantry 15, a cylinder 1 is installed on the loading gantry 15, a cylinder 2 11 is installed on one side of the upper part of the tray 22, a Rotat column 10 is installed near the cylinder 2 11, a pressure valve 6 is installed near the Rotat column 10, and an extraction mechanism 20 is installed near the tray 22.

[0024] The working principle of ICFC technology is to use a final thin-walled container, which replaces the container side wall to become a compression chamber during the compression process. The high-efficiency filter together with the filter bag and the filter box will be continuously pressed into it until it is 100% full, and then the container cover is closed and taken out from the compression chamber. The compressor using ICFC technology includes compaction equipment, original high-efficiency filter, cake storage container, loading gantry 15, lower structure compaction chamber, upper structure compaction chamber, filter loading hatch, tamping machine and compaction drive device, cake container extraction trolley, ventilation and sealing system. The tray 22 is suitable for high-efficiency filters with high vertical rebound rate of cakes, which can be tightened on the container while maintaining the pressure of the compactor. The cover of the table cover is designed with a 1.5 mm thick metal plate and is in the shape of a tray. This shape is adopted to make it have greater rigidity and facilitate positioning on the tamping machine and tightening it on the container before removing the compactor. The table cover is designed with a 1.5 mm thick metal plate and is used to compact the filter of the cake, and the cake after compaction will hardly recover vertically. The table cover is flat with a small vertical flange on one of the sides. During the container capping process, it can be inserted like a guillotine into the front end of the compacting chamber and tightened onto the container on this side only. After the container is removed from the compactor, the vertical tightening of the cover can be completed around the entire perimeter. The loading gantry 15 is the main structural unit of the IFCF compactor. It is a structural gantry made of thick plate, which houses the compaction cylinders and the compaction tamper. The upper part of the loading gantry 15 is vertically mounted with a 100Tn compaction cylinder and a compactor guide system. The filter loading hatch is located at the front end of the upper chamber and its dimensions allow the operator to load a standard 600X600 HEPA filter in its packaging box in a horizontal position. The door is equipped with a safety locking system that prevents it from opening when the compactor is in an unsafe position and supports the side loads of compaction during the final stage of filling the press cake container. Tamper and compaction drive The compaction drive tamper is located on the top of the main loading gantry and is guided by two vertical structural linear systems parallel to the cylinders. The cylinders are equipped with a hydraulic safety system that ensures the required safety performance of the machine, while the universal hydraulic system is located outside the equipment, installed in a specific unit together with the hydraulic power unit and the control valves. The entry and exit of the press container extraction trolley from the pressing equipment is done automatically by electric slides. The equipment includes a push-type baffle that pulls the container into the equipment and removes it at the end of the process. The end of the system is located in the center of the comb teeth outside, and if there is no crane lifting system in the building where the system is located, the container can be taken away directly with a mobile machine. The ventilation and sealing system is a high-efficiency filter containing highly volatile pollutants, so the entire compaction process is carried out in a dynamic closed environment. For this purpose, a ventilation grille is installed on the side opposite the filter loading door, which generates a forced ventilation flow at any time, bringing all the particles that may be generated during the compaction process to the side opposite the operator's position and directing them through a collector to the equipment's own filtering device, which is located outside the equipment and on top of the hydraulic module.The rammer is the component that comes into contact with the spent filter to perform the compaction. The compactor is a solid square plate with structural reinforcements and the outside dimensions are the same as the inside dimensions of the cake container. This is done to minimize the spillage effect of the rammer.

[0025] A compression system that packs high-efficiency filters directly into sealed bags and new filter cartons for replacement filters; a system that compresses multiple high-efficiency filters directly inside a container for permanent storage; a system that covers the final container by maintaining pressure inside the compaction cake and the compaction chamber; removing the container with the fully covered compaction cake; using the powered lateral structure side walls to absorb the lateral forces generated during the compaction process; by automatically feeding the spent filters into the compactor, direct intervention during normal equipment operation is minimized, thereby improving operator safety; process optimization not only brings economic benefits, but more importantly reduces the radiation exposure of operators.

[0026] An L-shaped plate 8 is installed at the lower part of the cylinder 1, a hydraulic cylinder 4 is arranged near the lower part of the pressure valve 6, and two linear friction bushings 3 are arranged inside the loading gantry 15. A bench 21 is installed on the side close to the extraction mechanism 20.

[0027] The lower part of the two cylindrical support rods 9 is provided with a compacting plate 19, the upper part of the compacting plate 19 is provided with a punching anvil 18, the upper part of the punching anvil 18 is provided with a non-lubricated bearing 17, and a bridge 16 is provided on the side close to the punching anvil 18 and the non-lubricated bearing 17. The loading gantry 15 is detachably connected with a plurality of side door fixing nuts 5, and the upper part of the loading gantry 15 is provided with a plurality of side door fixing screws 7 between the two cylindrical support rods 9. A ventilation slot 12 is provided near the punching anvil 18, a ventilation slot 2 13 is provided near the compacting plate 19, and a ventilation slot 3 14 is provided near the extraction mechanism 20.

[0028] A compression system that packs HEPA filters directly into sealed bags and new filter cartons for replacement filters; a system that compresses multiple HEPA filters directly inside a container for permanent storage; a system that covers the final container by maintaining pressure inside the compacted particles and the compaction chamber; removing containers with fully covered press cakes; utilizing powered lateral structural side walls to absorb lateral forces generated during compaction; and improving operator safety by automatically feeding spent filters into the compactor, minimizing direct intervention during normal equipment operation. Process optimization not only brings economic benefits, but more importantly reduces radiation exposure to operators, a long-standing requirement of the ALARA standard.

[0029] The present invention, used for compacting HEPA filters containing radioactive waste, shortens the total processing time, thereby greatly controlling the amount of radiation that operators are exposed to in each package. It allows HEPA filters contaminated with radioactive waste to be fed directly into the compactor without prior preparation and placed directly into the package in which they are stored, thereby eliminating the radiation exposure of the operator. This is possible because the size of the ICFC system enables the filter to be placed in the box without removing it from the contaminated sealed bag. Therefore, the proposed system is able to directly process the high-efficiency filters in the original cardboard package and bag in accordance with the requirements of the BIBO process. This facilitates the operation of the equipment because the operator does not need to unpack the package of the filter to be compacted. The proposed system can always maintain the airtightness of the press cake. It can directly compress 15 to 20 high-efficiency filters in the final package. The package removed from the equipment is completely closed, and the press cake can always be kept airtight even after compaction and after removal from the compaction equipment. This eliminates the need to handle the press cake and does not require a hot chamber because the press cake is never exposed to the outside. With this system, there is no need to handle the press cake in a hot chamber. With the proposed system, there is no need to place the press cakes inside the final container or to arrange them in order to maximally fill the final container, since the press cakes are compacted directly inside the final container. The optimization of the process not only brings economic benefits but more importantly reduces the radiation exposure of the operators, which is also a long-standing requirement of the ALARA standard.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter compacting device, comprising a compacting device, an original high-efficiency filter, a filter cake storage container, a loading gantry (15), a lower structure compacting chamber, an upper structure compacting chamber, a filter loading hatch, a compactor and a compacting drive device, a compacted cake container extraction trolley, ventilation, a sealing system, a platform cover, a loading gantry (15) and a tray (22), characterized in that: The platform cover and the tray (22) are both installed on the original high-efficiency filter. The original high-efficiency filter, the compaction storage container, the loading gantry (15), the lower structure compaction chamber, the upper structure compaction chamber, the filter loading hatch, the tamping machine and the compaction drive device, the compaction cake container extraction trolley, the ventilation and sealing system are all installed on the compaction equipment. A 100Tn compaction cylinder and a compaction machine guide system are vertically installed on the upper part of the loading gantry (26). The loading gantry (26) is installed with a cylinder one (1). A cylinder two (11) is installed on one side of the upper part of the tray (22). A Rota column (10) is installed near the cylinder two (11). A pressure valve (6) is installed near the Rota column (10). An extraction mechanism (20) is installed near the tray (22).

2. A filter compacting device according to claim 1, characterized in that: An L-shaped plate (8) is installed at the lower part of the cylinder 1 (1), a hydraulic cylinder (4) is arranged near the lower part of the pressure valve (6), and two linear friction bushings (3) are arranged inside the loading gantry (15).

3. A filter compacting device according to claim 1, characterized in that: A bench (21) is installed on one side close to the extraction mechanism (20).

4. A filter compacting device according to claim 1, characterized in that: Cylindrical support rods (9) penetrate both sides of the upper part of the loading gantry (26).

5. A filter compacting device according to claim 3, characterized in that: A compacting plate (19) is provided at the lower part of the two cylindrical support rods (9), a punching anvil (18) is installed at the upper part of the compacting plate (19), a non-lubricated bearing (17) is installed at the upper part of the punching anvil (18), and a bridge (16) is provided on one side close to the punching anvil (18) and the non-lubricated bearing (17).

6. A filter compacting device according to claim 1, characterized in that: The loading gantry (26) is detachably connected with a plurality of side door fixing nuts (5), and the upper portion of the loading gantry (15) is located between two cylindrical support rods (9) and is provided with a plurality of side door fixing screws (7).

7. A filter compacting device according to claim 5, characterized in that: A ventilation slot one (12) is provided near the punching anvil (18), a ventilation slot two (13) is provided near the compacting plate (19), and a ventilation slot three (14) is provided near the extraction mechanism (20).

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