Radioactive contaminated solid waste crushing, compacting and packaging system

Abstract

The utility model relates to a radioactive contaminated solid waste crushing, compacting and packaging system, and belongs to the technical field of radioactive contaminated solid waste disposal. The system includes a crusher, a compactor, a baler, a first belt conveyor, a second belt conveyor, a first three-way distributor and a second three-way distributor; since the crusher, the compactor, the baler, the first belt conveyor and the second belt conveyor are connected through the first three-way distributor and the second three-way distributor to form a complete closed radiation-proof negative pressure state, the radioactive contaminated solid waste in the nuclear power plant can be crushed and compacted, and the radioactive contaminated solid waste can be minimized as much as possible, thereby bringing great convenience to subsequent treatment.

Description

Technical Field

[0001] The utility model relates to a system for treating radioactively contaminated solid wastes such as cotton cloth, plastic, paper, etc. generated during the operation, overhaul and maintenance of a nuclear power plant, and belongs to the technical field of radioactively contaminated solid waste disposal (G21F9 / 34). Background Art

[0002] Nuclear energy is increasingly being developed. While obtaining nuclear energy, a high-quality energy source, it also brings radioactive waste in three states: gas, solid and liquid. Minimizing radioactive waste is one of the important principles of radioactive waste management.

[0003] For radioactive contaminated solid wastes such as protective equipment, tools, cotton products, plastic products, paper products, etc. generated during the operation, inspection and maintenance of nuclear power plants, although their radioactivity levels are low, it is still necessary to minimize the safe treatment of radioactive contaminated solid wastes to facilitate subsequent treatment. Summary of the invention

[0004] The technical problem to be solved by the utility model is how to minimize the treatment of radioactive contaminated solid waste in a nuclear power plant.

[0005] The utility model proposes a technical solution to solve the above technical problems: a radioactive contaminated solid waste crushing, compacting and packaging system, comprising a crusher, a compactor, a packaging machine, a first belt conveyor, a second belt conveyor, a first three-way distributor and a second three-way distributor, wherein the radioactive solid waste enters from the feed port of the crusher; the discharge port of the crusher is connected with the inlet of the first belt conveyor, and the discharge port of the first belt conveyor is connected with the feed port of the first three-way distributor; the first three-way distributor has two discharge ports, namely a first discharge port and a second discharge port; The first discharge port is connected with the feed port of the compactor, the second discharge port and the discharge port of the compactor are both connected with the feed port of the second belt conveyor, and the discharge port of the second belt conveyor is connected with the feed port of the second three-way distributor; the second three-way distributor has two discharge ports, and its two discharge ports are respectively connected with the feed ports of two weighing and storage tanks in the baler, and the crusher, compactor, baler, first belt conveyor, second belt conveyor, first three-way distributor and second three-way distributor and the connections therebetween are all in a closed and radiation-proof negative pressure state.

[0006] Furthermore, the discharge port of the pulverizer is connected to the inlet of the first belt conveyor to feed the pulverized radioactive solid waste into the first belt conveyor.

[0007] Furthermore, the first discharge port is connected to the feed port of the compactor to feed the crushed radioactive solid waste into the compactor for compaction.

[0008] Furthermore, the second discharge port is connected with the feed port of the second belt conveyor to feed the crushed radioactive solid waste into the second belt conveyor; the discharge port of the compactor is connected with the feed port of the second belt conveyor to feed the compacted radioactive solid waste into the second belt conveyor.

[0009] Furthermore, the second three-way distributor has two discharge ports which are respectively connected to the feed ports of the two weighing temporary storage hoppers in the baler, so as to respectively deliver the crushed radioactive solid waste and the compacted radioactive solid waste into the two weighing temporary storage hoppers in the baler, and then weigh them separately and then pack them or mix and pack them.

[0010] Furthermore, the three-way distributor includes a pipe shell formed by two sections of pipes intersecting and splicing at one end, a dividing valve shaft crossing the pipes is arranged at the intersection of the two sections of pipes, a swing arm is sleeved on one end of the dividing valve shaft, a dividing valve plate is sleeved on the dividing valve shaft, a cylinder is arranged on the outer wall of the pipe, and the protruding end of the piston rod of the cylinder is hinged to the protruding end of the swing arm.

[0011] Furthermore, the swing arm is installed on one end of the material distribution valve shaft through a sleeve and a bearing, and the material distribution valve plate is installed on the material distribution valve shaft through a shaft sleeve.

[0012] Furthermore, the crusher adopts the 800 type double-shaft crusher produced by Xingyang Zhengzhou Shangnuo Machinery Manufacturing Co., Ltd., the compactor adopts the 600-36 type compactor produced by Xingyang Zhengzhou Shangnuo Machinery Manufacturing Co., Ltd., the baler adopts the BLQ-PT830 type double-head scale baler produced by Anhui Bulu Automation Equipment Co., Ltd., and the belt conveyor adopts the Z-type belt conveyor produced by Suzhou Subai Machinery Equipment Co., Ltd.

[0013] The beneficial effect of the utility model is that since the crusher, the compactor, the baler, the first belt conveyor, and the second belt conveyor are connected through the first three-way distributor and the second three-way distributor to form a complete closed radiation-proof negative pressure state, the radioactive contaminated solid waste in the nuclear power plant can be crushed and compacted, and the radioactive contaminated solid waste can be minimized as much as possible, thereby bringing great convenience to subsequent treatment. In addition, two weighing temporary storage hoppers are set in the baler to receive the crushed radioactive solid waste and the compacted radioactive solid waste respectively. In this way, crushed radioactive solid waste, compacted radioactive solid waste, or a mixture of crushed radioactive solid waste and compacted radioactive solid waste can be provided separately according to the needs of subsequent treatment, so as to be more flexible to adapt to the subsequent treatment of radioactive solid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The radioactive contaminated solid waste crushing, compacting and packaging system of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 The utility model is a schematic diagram of the structure of a radioactive contaminated solid waste crushing, compacting and packaging system according to an embodiment of the utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of the structure of a three-way distributor split in the middle.

[0017] Figure 3 yes Figure 2 Left view of . DETAILED DESCRIPTION

[0018] Example

[0019] The radioactive contaminated solid waste crushing, compacting and packaging system of this embodiment is as follows: Figure 1 As shown, it includes a crusher 1, a compactor 4, a baler 7, a first belt conveyor 2, a second belt conveyor 5, a first three-way distributor 3 and a second three-way distributor 6. The radioactive solid waste enters from the feed port of the crusher 1; the discharge port of the crusher 1 is connected with the inlet of the first belt conveyor 2 to feed the crushed radioactive solid waste into the first belt conveyor 2; the discharge port of the first belt conveyor 2 is connected with the feed port of the first three-way distributor 3; the first three-way distributor 3 has two discharge ports, namely a first discharge port 3-1 and a second discharge port 3-2; the first discharge port 3-1 is connected with the feed port of the compactor 4 to feed the crushed radioactive solid waste into the compactor for compaction; the second discharge port 3-2 and the discharge port of the compactor 4 are connected. The outlets of the compactor 4 are connected with the feed outlet of the second belt conveyor 5, wherein the second outlet 3-2 is connected with the feed outlet of the second belt conveyor 5, and is used to feed the crushed radioactive solid waste into the second belt conveyor 5; the outlet of the compactor 4 is connected with the feed outlet of the second belt conveyor 5, and is used to feed the compacted radioactive solid waste into the second belt conveyor 5; the outlet of the second belt conveyor 5 is connected with the feed outlet of the second three-way distributor 6; the second three-way distributor 6 has two outlets, and its two outlets are respectively connected with the feed outlets of the two weighing storage tanks in the baler 7, and are used to feed the crushed radioactive solid waste and the compacted radioactive solid waste into the two weighing temporary storage hoppers in the baler, and weigh them separately and then pack or mix and pack. The pulverizer 1, the compactor 4, the baler 7, the first belt conveyor 2, the second belt conveyor 5, the first three-way distributor 3 and the second three-way distributor 6 and the connection between them are all in a closed radiation-proof negative pressure state.

[0020] like Figure 2 and 3As shown, the first three-way distributor 3 and the second three-way distributor 6 both include a pipe shell 8 formed by two sections of pipes intersecting and splicing at one end, a distributor valve shaft 9 crossing the pipe is provided at the intersection of the two sections of pipes, a swing arm 10 is sleeved at one end of the distributor valve shaft 9, a distributor valve plate 11 is sleeved on the distributor valve shaft 9, a cylinder 14 is provided on the outer wall of the pipe, and the extended end of the piston rod of the cylinder 14 is hinged to the extended end of the swing arm 10. The swing arm 10 is installed at one end of the distributor valve shaft 9 through a sleeve 12 and a bearing 13, and the distributor valve plate 11 is installed on the distributor valve shaft 9 through a shaft sleeve.

[0021] The above-mentioned crusher 1 adopts the 800 type single-axis or double-axis crusher produced by Xingyang Zhengzhou Shangnuo Machinery Manufacturing Co., Ltd., the compactor 4 adopts the 600-36 type compactor produced by Xingyang Zhengzhou Shangnuo Machinery Manufacturing Co., Ltd., the baler 7 adopts the BLQ-PT830 type double-head scale baler produced by Anhui Bulu Automation Equipment Co., Ltd., and the first belt conveyor 2 and the second belt conveyor 5 both adopt the Z-type belt conveyor produced by Suzhou Subai Machinery Equipment Co., Ltd.

[0022] The compactor 4 has a heating function, which heats the radioactive solid waste through a resistance wire to soften, melt, and make it easier to compact. In addition, by adjusting the heating temperature during the compaction process, radioactive solid waste with different compaction densities can be obtained. In addition, the compactor 4 also has temperature monitoring, alarm, and automatic fire extinguishing functions. When the temperature reaches the alarm value, a temperature alarm is issued, and the control system can automatically cut off the heating unit after receiving the alarm, or it can be manually cut off by the operator.

[0023] The baler 7 is also provided with a mixing box, and two weighing temporary storage hoppers can be weighed separately, and the radioactive solid wastes in different states (crushed or compacted) in the two weighing temporary storage hoppers in the baler 7 can be weighed separately and then baled, or sent to the mixing box for mixing and then baling. In addition, the baler 7 has the function of pumping negative pressure, and after the radioactive solid wastes are mixed and baled, the residual air in the packaging bag is pumped out to minimize the baling volume.

[0024] The use process of the radioactive contaminated solid waste crushing, compacting and packaging system of this embodiment is as follows: Figure 1 As shown, radioactive contaminated solid waste (such as non-compactable PC products, plastics and rubber, etc., compactable cotton cloth and paper clothes, etc.) is fed into the pulverizer 1 for pulverization. The pulverizer 1 is provided with a filter screen, the size of which can control the size of the radioactive contaminated solid waste after pulverization. The pulverizer 1 is also provided with a compressed air purge function, which can clean the radioactive contaminated solid waste remaining inside the pulverizer.

[0025] After being crushed by the pulverizer 1, the waste is transferred to the first pneumatic three-way distributor 3 in front of the compactor 4 through the first belt conveyor 2 for sorting. Non-compactable wastes such as PC products, plastics and rubber are sorted by the first pneumatic three-way distributor 3 and then enter the second belt conveyor 5 through the second discharge port 3-2 for transportation; compactable wastes such as cotton cloth and paper clothes are sorted by the first pneumatic three-way distributor 3 and enter the compactor 4 from the first discharge port 3-1 for compaction. The compaction temperature of the compactor 4 is preset according to the compaction characteristics of the radioactive contaminated solid waste (cotton cloth, paper clothes, etc.) and the density requirements after compaction. After compaction by the compactor 4, the waste is sent from the discharge port of the compactor 4 to the second belt conveyor 5 for transportation.

[0026] Non-compactable wastes such as PC products, plastic boxes and rubber, and compactable wastes such as cotton cloth and paper clothes after compaction are transported to the second pneumatic three-way distributor 6 in front of the baler 7 via the second belt conveyor 5. After being sorted by the second pneumatic three-way distributor 6, they enter the two weighing temporary storage hoppers in the baler 7 from the two outlets of the second pneumatic three-way distributor 6, that is, the weighing temporary storage hopper for compactable waste and the weighing temporary storage hopper for non-compactable waste for temporary storage. According to the requirements of the packaging ratio, the two types of radioactive contaminated solid wastes (compactable waste and non-compactable waste) in the two weighing temporary storage hoppers are weighed by a double-head scale. According to the needs of subsequent processing, they are packaged separately after weighing, or mixed in a mixing box before packaging.

[0027] The present invention is not limited to the above-mentioned embodiments, and any technical solutions formed by equivalent replacement shall fall within the protection scope required by the present invention.

Claims

1. A system for crushing, compacting and packaging radioactive contaminated solid waste, characterized in that : It includes a crusher, a compactor, a baler, a first belt conveyor, a second belt conveyor, a first three-way distributor and a second three-way distributor. The radioactive contaminated solid waste enters from the feed port of the crusher; the discharge port of the crusher is connected with the inlet of the first belt conveyor, and the discharge port of the first belt conveyor is connected with the feed port of the first three-way distributor; the first three-way distributor has two discharge ports, namely the first discharge port and the second discharge port; the first discharge port is connected with the feed port of the compactor The second discharge port of the compactor is connected with the feed port of the second belt conveyor, and the discharge port of the second belt conveyor is connected with the feed port of the second three-way distributor; the second three-way distributor has two discharge ports, and its two discharge ports are respectively connected with the feed ports of the two weighing storage tanks in the baler, and the crusher, compactor, baler, first belt conveyor, second belt conveyor, first three-way distributor and second three-way distributor and the connections therebetween are all in a closed and radiation-proof negative pressure state.

2. The radioactive contaminated solid waste crushing, compacting and packaging system according to claim 1 is characterized by: The discharge port of the pulverizer is connected to the inlet of the first belt conveyor, so as to convey the pulverized radioactive solid waste into the first belt conveyor.

3. The radioactive contaminated solid waste crushing, compacting and packaging system according to claim 1 is characterized by: The first discharge port is connected to the feed port of the compactor and is used to feed the crushed radioactive solid waste into the compactor for compaction.

4. The radioactive contaminated solid waste crushing, compacting and packaging system according to claim 1 is characterized by: The second discharge port is connected with the feed port of the second belt conveyor to feed the crushed radioactive solid waste into the second belt conveyor; the discharge port of the compactor is connected with the feed port of the second belt conveyor to feed the compacted radioactive solid waste into the second belt conveyor.

5. The radioactive contaminated solid waste crushing, compacting and packaging system according to claim 1 is characterized by: The second three-way distributor has two discharge ports which are respectively connected to the feed ports of the two weighing temporary storage hoppers in the baler, and is used to respectively deliver the crushed radioactive solid waste and the compacted radioactive solid waste into the two weighing temporary storage hoppers in the baler, and then weigh them separately and then pack them or mix and pack them.

6. The radioactive contaminated solid waste crushing, compacting and packaging system according to claim 1 is characterized by: The three-way distributor comprises a pipe shell formed by two sections of pipes intersecting and splicing at one end, a distributor valve shaft crossing the pipes is arranged at the intersection of the two sections of pipes, a swing arm is sleeved on one end of the distributor valve shaft, a distributor valve plate is sleeved on the distributor valve shaft, a cylinder is arranged on the outer wall of the pipe, and the protruding end of the piston rod of the cylinder is hinged to the protruding end of the swing arm.

7. The radioactive contaminated solid waste crushing, compacting and packaging system according to claim 6 is characterized by: The swing arm is installed on one end of the distribution valve shaft through a sleeve and a bearing, and the distribution valve plate is installed on the distribution valve shaft through a shaft sleeve.

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