Recycling system for fumigation medicament

Abstract

The utility model discloses a fumigation agent recycling system which comprises a quarantine fumigation bin, a transfer station is arranged on one side of the quarantine fumigation bin, a return tank is arranged on one side of the transfer station, a dosing pipe is connected to one side of the top of the quarantine fumigation bin, and a reciprocating pipe is arranged at the position, connected with the quarantine fumigation bin, of the dosing pipe. The reciprocating pipe is communicated with the inner side of the quarantine fumigation bin, the other end of the reciprocating pipe is communicated with the interior of the transfer station, the side face of the bottom of the quarantine fumigation bin is connected with a low return pipe, the other end of the low return pipe is communicated with the transfer station to form circulation, and a single-bin circulating pipe is arranged in the middle of the face, away from the low return pipe, of the quarantine fumigation bin. The two ends of the single-bin circulating pipe are both communicated with the interior of the quarantine fumigation bin, the face, away from the low return pipe, of the transfer station is connected with a chemical recycling pipe, the chemical recycling pipe is communicated with the interior of the return tank, and a chemical recycling outlet pipe is arranged on the side, connected with the transfer station, of the chemical recycling pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of quarantine fumigation, and particularly relates to a recycling system for fumigation agents. Background Art

[0002] Quarantine fumigation is a measure used in trade and transportation to kill pests (such as insects, pathogens, etc.) that may be carried in goods. It is mainly used to protect the plant health of the destination country and prevent the spread of pests. Quarantine fumigation is usually carried out before the goods are shipped to ensure that the goods meet the phytosanitary requirements of the destination country.

[0003] During the quarantine fumigation process, the goods are treated in a closed environment to kill the harmful substances hidden in the goods. This process includes the selection of agents, the application of agents, and the control of fumigation time. After the traditional fumigation agents are used, they are directly discharged, and the vaporized agents after use cannot be recycled and reused again, which is very wasteful and increases the cost of quarantine fumigation. Therefore, it is urgent to design a recycling system for fumigation agents to solve the above problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a recycling system for fumigation agents, which has an entire recycling system. It can absorb the fumigated agents in the quarantine fumigation chamber into the transfer station through air flow, recycle the agents by backfilling, and then transport them into the quarantine fumigation chamber through the transfer station, so as to repeatedly recycle the agents, improve the utilization rate of the agents, reduce the cost consumption, and avoid the impact of the agents on the environment.

[0005] The recycling system for fumigation agents provided by the utility model is as follows:

[0006] It includes a quarantine fumigation chamber. There is a transfer station on one side of the quarantine fumigation chamber, and a return tank on one side of the transfer station. One side of the top of the quarantine fumigation chamber is connected with a medicine feeding pipe. There is a reciprocating pipe at the position where the medicine feeding pipe is connected to the quarantine fumigation chamber. The reciprocating pipe communicates with the inside of the quarantine fumigation chamber, and the other end of the reciprocating pipe communicates with the inside of the transfer station. The side of the bottom of the quarantine fumigation chamber is connected with a low return pipe, and the other end of the low return pipe communicates with the transfer station to form a cycle. In the middle of the side of the quarantine fumigation chamber away from the low return pipe, there is a single chamber circulation pipe, and both ends of the single chamber circulation pipe communicate with the inside of the quarantine fumigation chamber. On the side of the transfer station facing away from the low return pipe, there is a recovered medicine pipe, and the recovered medicine pipe communicates with the inside of the return tank. On one side of the recovered medicine pipe connected to the transfer station, there is a recovered medicine outlet pipe, and both ends of the recovered medicine outlet pipe communicate with the inside of the transfer station and the return tank respectively. The recovered medicine pipe and the recovered medicine outlet pipe form a cycle between the transfer station and the return tank. On one side of the position where the transfer station is connected to the recovered medicine pipe, there is a high-altitude external discharge port, and on the position where the transfer station is connected to the recovered medicine outlet pipe, there is an air inlet.

[0007] Preferably, in the middle of the end of the medicine feeding pipe away from the quarantine fumigation chamber, there is a vaporizer. On the top of the end of the medicine feeding pipe connected to the vaporizer, there is a medicine feeding platform. The vaporizer is used to vaporize the medicine in the medicine feeding box and transport it into the quarantine fumigation chamber.

[0008] Preferably, at the end of the reciprocating pipe connected to the transfer station, there is a chamber heater. On one side of the chamber heater close to the transfer station, there is a first circulation fan, and the first circulation fan communicates with the inside of the reciprocating pipe. The reciprocating pipe is used to transport the medicine gas in the transfer station into the quarantine fumigation chamber. Through the suction provided by the first circulation fan, the gas in the transfer station is transported into the reciprocating pipe. While being transported, the gas will be heated by the chamber heater.

[0009] Preferably, in the middle of the recovered medicine pipe, there is an analytical heater. At the positions where the transfer station is connected to the reciprocating pipe, the low return pipe, the recovered medicine pipe, the recovered medicine outlet pipe, the high-altitude external discharge port, and the air inlet, there are pneumatic valves. The analytical heater can analyze the medicine gas sent into the transfer station and transport it into the return tank after heating. The setting of the pneumatic valves can prevent the automatic flow of gas between each pipeline, so that the flow of gas is precisely controlled.

[0010] Preferably, in the middle of the single chamber circulation pipe, there is a single chamber circulation heater. On one side of the single chamber circulation heater, there is a small circulation fan. The single chamber circulation heater can heat the air inside the quarantine fumigation chamber. Through the small circulation fan, the air inside the quarantine fumigation chamber can be continuously pumped into the single chamber circulation pipe, forming a separate cycle inside the quarantine fumigation chamber, which is used to heat the air temperature inside the quarantine fumigation chamber and maintain a high temperature.

[0011] Preferably, a low - level detection point is connected to the inner bottom of the quarantine fumigation chamber, a middle - level detection point is connected to the middle part of the inner side of the quarantine fumigation chamber, and a high - level detection point is connected to the top of the inner side of the quarantine fumigation chamber. The design of the low - level detection point, middle - level detection point, and high - level detection point can detect each level inside the quarantine fumigation chamber.

[0012] Preferably, a filter box is provided at the position where the quarantine fumigation chamber is connected to the single - chamber circulation pipe. An impurity accumulation box is provided inside the quarantine fumigation chamber at the position connected to the filter box. A barrel air net cover is provided on the top of the impurity accumulation box. A pull - out box is connected to the bottom of the impurity accumulation box. The filter box includes a box body. A rotating shaft is rotatably connected through the middle of the box body. Wind - blocking blades are connected to the outer surface of the rotating shaft. A filter screen is fixed at the position where the box body is connected to the quarantine fumigation chamber. The inner wall of the filter screen is parallel to the inner surface of the quarantine fumigation chamber. A scraping blade is connected to one end of the wind - blocking blade close to the filter screen. The outer wall of the scraping blade fits and slides on the outer surface of the filter screen.

[0013] The filter box can filter the impurities contained in the air inside the quarantine fumigation chamber, and use the air to blow the wind - blocking blades to rotate, scrape the impurities on the surface of the filter screen, and squeeze them into the inner side of the impurity accumulation box inside the quarantine fumigation chamber through the scraping blade, realizing the automatic filtering, cleaning, and recycling of impurities.

[0014] Compared with the related technology, a recovery and recycling system for fumigation agents provided by the present utility model has the following beneficial effects:

[0015] 1. Inside the quarantine fumigation chamber of the present utility model, a round - trip pipe and a low - return pipe are connected, which are used to connect to the transfer station. After the vaporized agent used inside the fumigation chamber is absorbed and flows into the transfer station after use, it is stored through back - filling. When used again, it is transported from the back - filling to the transfer station and then sent into the quarantine fumigation chamber, completing the repeated recycling of the agent, reducing the dosage of the agent, saving costs, and reducing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a preferred embodiment of a recovery and recycling system for fumigation agents provided by the present utility model;

[0017] Figure 2 is Figure 1 a schematic structural diagram of the side view shown;

[0018] Figure 3 is Figure 1 a cross - sectional view of the internal structure of the quarantine fumigation chamber shown;

[0019] Figure 4 is Figure 2 a schematic enlarged sectional view of the structure at the position of the filter box shown.

[0020] Labels in the figure: 1. Quarantine fumigation chamber; 2. Transfer station; 3. Return tank; 4. Chemical dosing pipe; 5. Round-trip pipe; 6. Low return pipe; 7. Single-chamber circulation pipe; 8. Chemical recovery pipe; 9. Chemical recovery outlet pipe; 10. High-altitude exhaust port; 11. Air inlet; 12. Vaporizer; 13. Chemical dosing platform; 14. Chamber heater; 15. First circulation fan; 16. Desorption heater; 17. Pneumatic valve; 18. Small circulation fan; 19. Single-chamber circulation heater; 20. Low-level detection point; 21. Middle-level detection point; 22. High-level detection point; 23. Filter box; 24. Debris box; 25. Barrel air screen; 26. Box body; 27. Rotating shaft; 28. Wind-blocking blade; 29. Scraping blade; 30. Filter screen; 31. Drawer box. Detailed implementation mode

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0023] Please refer to the attached Figures 1-4 , a recycling system for fumigation chemicals provided by an embodiment of the present utility model, the recycling system for fumigation chemicals includes:

[0024] A quarantine fumigation chamber 1, a low-level detection point 20 is provided on the lower side inside the top of the quarantine fumigation chamber 1 for detecting the temperature condition at the low level inside the quarantine fumigation chamber 1, a middle-level detection point 21 is provided in the middle of the quarantine fumigation chamber 1 for detecting the temperature condition at the middle level inside the quarantine fumigation chamber 1, and a high-level detection point 22 is provided on the upper side inside the quarantine fumigation chamber 1 for detecting the temperature condition on the upper side inside the quarantine fumigation chamber 1, so as to ensure the temperature uniformity inside the quarantine fumigation chamber 1.

[0025] One side of the quarantine fumigation chamber 1 is connected with a single-chamber circulation pipe 7, and both ends of the single-chamber circulation pipe 7 are communicated with the inside of the quarantine fumigation chamber 1. Through the small circulation fan 18 and the single-chamber circulation heater 19 in the middle of the single-chamber circulation pipe 7, the air inside the quarantine fumigation chamber 1 can be continuously heated and circulated.

[0026] A filter box 23 is provided at the position where the quarantine fumigation chamber 1 is connected to the single-chamber circulation pipe 7. The other end of the filter box 23 is communicated with the single-chamber circulation pipe 7. And an impurity accumulation box 24 is provided at the position inside the quarantine fumigation chamber 1 where it is connected to the filter box 23. Through the design of the filter box 23, when the air inside the quarantine fumigation chamber 1 is circulated and heated inside the single-chamber circulation pipe 7, the impurities in the air can be filtered. And the air flow rotates the air-blocking blades 28 inside the filter box 23, and the scraping blades 29 connected to the outer wall of the air-blocking blades 28 scrape off the impurities filtered on the surface of the filter screen 30 and squeeze them into the impurity accumulation box 24, realizing the filtering, cleaning and collection of impurities, and improving the cleanliness inside the quarantine fumigation chamber 1.

[0027] It should be noted that: the accumulated impurities can be taken out and poured out by pulling the drawer box 31.

[0028] A conversion station 2 is provided on one side of the quarantine fumigation chamber 1, and a backfill is provided on one side of the conversion station 2. The quarantine fumigation chamber 1 can send the air containing the medicament inside through the low-back pipe via the round-trip pipe 5, and the air containing the medicament inside the quarantine fumigation chamber 1 is sent into the conversion station 2 through the low-back pipe, and then sent into the storage tank 3 for storage through the recovery medicament pipe 8 connected to the side of the conversion station 2. When in use, it is sent to the conversion station 2 again through the recovery medicament outlet pipe 9, and is sent into the quarantine fumigation chamber 1 through the pressurization and heating of the round-trip pipe 5, completing the cyclic use of the medicament inside the quarantine fumigation chamber 1.

[0029] A dosing pipe 4 is connected at the position where the top of the quarantine fumigation chamber 1 is connected to the round-trip pipe 5. The end of the dosing pipe 4 is connected with a vaporizer and a dosing platform 13, and the medicament put into the dosing platform 13 can be vaporized by the vaporizer 12 and sent into the quarantine fumigation chamber 1 for use.

[0030] It should be noted that: the low-level detection point 20, the middle-level detection point 21, and the high-temperature detection point can detect the medicament residue inside the quarantine fumigation chamber 1.

[0031] Usage process:

[0032] The fumigation system has control actions such as reset, pressure boosting, dosing, circulation, heating, inventory transfer, recovery, discharge, reuse of fumigant, and automatic detection. The control process is as follows.

[0033] 1. Reset

[0034] The reset operation closes all equipment such as fans, valves, and heaters.

[0035] 2. Pressure boosting

[0036] In the reset state, open the pneumatic valve 17 and the first circulation fan 15 connected to the air inlet 11.

[0037] Driven by the first circulation fan 15, the external air enters the fumigation chamber through the pneumatic valve 17 connected to the air inlet 11 to apply positive pressure to the fumigation chamber.

[0038] 3. Medication Administration

[0039] After the vaporizer 12 is preheated and in the reset state, open the medication administration table 13 and the small circulation fan 18.

[0040] The medicament flows out from the medication administration table 13 by its own pressure, is heated and vaporized into gas by the vaporizer 12, and enters the fumigation chamber through the medication administration pipe 4. The gas in the fumigation chamber is circulated by the power provided by the small circulation fan 18 to evenly distribute the medicament.

[0041] 4. Circulation

[0042] In the reset state, open the small circulation fan 18.

[0043] The gas in the fumigation chamber is circulated by the power provided by the small circulation fan 18 to evenly distribute the medicament.

[0044] 5. Heating

[0045] In the reset state, open the small circulation fan 18 and the chamber heater.

[0046] On the basis of the circulation operation, the heat generated by the chamber heater is brought into the fumigation chamber through the flowing air, thereby increasing the temperature in the fumigation chamber.

[0047] 6. Recovery

[0048] In the reset state, open the pneumatic valve 17 connected to the low return pipe 6, the pneumatic valve 176 of the recovered medicament pipe 8, the pneumatic valve 17 of the recovered medicament outlet pipe 9, the pneumatic valve 17 of the reciprocating pipe 5, and the circulation fan.

[0049] Under the power provided by the circulation fan, the gas in the fumigation chamber enters the recovery system through the pneumatic valve 17. After being filtered by the recovery system, the clean gas returns to the fumigation chamber through the pneumatic valve 17. This process is repeated for a period of time to achieve the purpose of medicament recovery.

[0050] 7. Discharge

[0051] In the reset state, open the pneumatic valve 17 connected to the reciprocating pipe 5, the pneumatic valve 17 of the recovered medicament pipe 8, the pneumatic valve 17 of the low return pipe 6, the pneumatic valve 17 of the high-altitude external discharge port 10, and the circulation fan.

[0052] Under the power provided by the circulation fan, the gas in the fumigation chamber enters the outdoor chimney through the pneumatic valve 17 and is discharged at high altitude. The clean gas returns to the fumigation chamber through the pneumatic valve 17. This process is repeated for a period of time to achieve the purpose of medicament discharge.

[0053] 8. Reuse of Fumigant

[0054] In the reset state, open the pneumatic valve 17 of the reciprocating pipe 5, the pneumatic valve 17 of the chemical recovery pipe 8, the pneumatic valve 17 of the low return pipe 6, the pneumatic valve 17 of the chemical recovery outlet pipe 9, the circulation fan, and the desorption heater 16.

[0055] Under the power provided by the circulation fan, turn on the desorption heater 16 for heating. The gas in the fumigation chamber passes through the pneumatic valve 17 and is heated by the desorption heater 16 and then enters the recovery system. After the activated carbon in the recovery system is heated up, the fumigant stored inside before is released. The mixed gas returns to the fumigation chamber through the pneumatic valve 17. This process continues repeatedly for a period of time to achieve the purpose of chemical desorption.

[0056] 9. Automatic detection

[0057] Three sampling points are set in the fumigation chamber, which are located at the high, middle, and low positions of the fumigation chamber respectively. Each sampling point consists of a temperature sampling probe and a methyl bromide sampling pipe.

[0058] The temperature probe uploads the temperature data to the detection host in real time.

[0059] The detection of the methyl bromide concentration is powered by a sampling pump. By using the sampling valve to switch, the gases at the high, middle, and low points of the fumigation chamber are sampled at different times, and the sampled gas is introduced into the methyl bromide detector. After the detector uploads the detection data to the host, the residual sampled gas is discharged back into the fumigation chamber through the discharge valve.

[0060] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated here too much.

[0061] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A fumigation agent recovery and recycling system, characterized in that: The invention comprises a quarantine fumigation bin (1), a conversion station (2) is provided on one side of the quarantine fumigation bin (1), a return tank (3) is provided on one side of the conversion station (2), a drug dosing pipe (4) is connected to one side of the top of the quarantine fumigation bin (1), a reciprocating pipe (5) is provided at the position where the drug dosing pipe (4) is connected to the quarantine fumigation bin (1), the reciprocating pipe (5) is connected to the inner side of the quarantine fumigation bin (1), the other end of the reciprocating pipe (5) is connected to the inside of the conversion station (2), a low return pipe (6) is connected to the side of the bottom of the quarantine fumigation bin (1), the other end of the low return pipe (6) is connected to the conversion station (2) to form a circulation, a single bin circulation pipe (7) is provided in the middle of a side of the quarantine fumigation bin (1) away from the low return pipe (6), and the two ends of the single bin circulation pipe (7) are connected to each other. The ends of the conversion station (2) are connected to the interior of the quarantine fumigation chamber (1); a recovery agent pipe (8) is connected to the side of the conversion station (2) away from the low return pipe (6); the recovery agent pipe (8) is connected to the interior of the return tank (3); a recovery agent outlet pipe (9) is provided on the side of the recovery agent pipe (8) connected to the conversion station (2); the two ends of the recovery agent outlet pipe (9) are respectively connected to the interior of the conversion station (2) and the return tank (3); the recovery agent pipe (8) and the recovery agent outlet pipe (9) form a circulation between the conversion station (2) and the return tank (3); a high-altitude external discharge port (10) is connected to the side of the conversion station (2) where the recovery agent pipe (8) is connected; and an air inlet (11) is connected to the side of the conversion station (2) where the recovery agent outlet pipe (9) is connected.

2. A fumigation agent recovery and recycling system according to claim 1, characterized in that: The middle of one end of the drug-dosing pipe (4) away from the quarantine fumigation chamber (1) is connected to a vaporizer (12), and the top of one end of the drug-dosing pipe (4) connected to the vaporizer (12) is connected to a drug-dosing platform (13).

3. A fumigation agent recovery and recycling system according to claim 1, characterized in that: One end of the reciprocating pipe (5) connected to the conversion station (2) is connected to a warehouse heater (14), and a first circulation fan (15) is provided on the side of the warehouse heater (14) close to the conversion station (2), and the first circulation fan (15) is connected to the inside of the reciprocating pipe (5).

4. A fumigation agent recovery and recycling system according to claim 1, characterized in that: The middle part of the recovery agent pipe (8) is connected to a decomposition heater (16), and the position where the conversion station (2) is connected to the round-trip pipe (5), the low return pipe (6), the recovery agent pipe (8), the recovery agent outlet pipe (9), the high-altitude external discharge port (10), and the air inlet (11) is provided with a pneumatic valve (17).

5. A fumigation agent recovery and recycling system according to claim 1, characterized in that: The middle part of the single-bin circulation pipe (7) is connected to a single-bin circulation heater (19), and a small circulation fan (18) is provided on one side of the single-bin circulation heater (19).

6. A fumigation agent recovery and recycling system according to claim 1, characterized in that: The bottom of the inner side of the quarantine fumigation chamber (1) is connected to a low-position detection point (20), the middle of the inner side of the quarantine fumigation chamber (1) is connected to a middle-position detection point (21), and the top of the inner side of the quarantine fumigation chamber (1) is connected to a high-position detection point (22).

7. A fumigation agent recovery and recycling system according to claim 1, characterized in that: A filter box (23) is provided at the position where the quarantine fumigation bin (1) is connected to the single bin circulation pipe (7); a debris box (24) is provided at the position inside the quarantine fumigation bin (1) where the filter box (23) is connected; a barrel wind net cover (25) is provided at the top of the debris box (24); a drawer box (31) is connected at the bottom of the debris box (24); the filter box (23) comprises a box body (26); a rotating shaft (27) is rotatably connected in the middle of the box body (26); a wind-blocking blade (28) is connected to the outer surface of the rotating shaft (27); a filter screen (30) is fixed at the position where the box body (26) is connected to the quarantine fumigation bin (1); the inner wall of the filter screen (30) is parallel to the inner surface of the quarantine fumigation bin (1); a scraper (29) is connected to one end of the wind-blocking blade (28) close to the filter screen (30); the outer wall of the scraper (29) is fitted and slid on the outer surface of the filter screen (30).

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