Atmospheric micro-plastic source collector

Abstract

The invention discloses an atmospheric micro-plastic source collector, and belongs to the technical field of pollutant detection. When the device is used, a plastic sample is placed in the first stainless steel guide pipe, in the rainfall period, a user opens the first electromagnetic valve and closes the second electromagnetic valve through the PLC, and micro-plastic enters the lowermost glass rainfall collecting bottle along the first stainless steel guide pipe along with rainfall. In the non-rainfall period, the first electromagnetic valve is closed, and the second electromagnetic valve continues to be opened. Under the action of an exhaust fan (provided with a battery and capable of continuously running for a long time), the micro-plastics horizontally move along the second stainless steel guide pipe along with airflow and finally gather on the stainless steel screen (with the hole diameter of 0.5 mm), all the assemblies are matched to complete collection of the micro-plastics in different environments, and after the micro-plastics are used for a period of time, a user can detach the frame and the filter screen, so that the micro-plastics can be conveniently collected. And meanwhile, the filter screen is cleaned to facilitate next-time use, and the practicability and flexibility of the whole device are improved through cooperation of all the assemblies.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pollutant detection, and particularly relates to an atmospheric micro-plastic source collector. BACKGROUND

[0002] Plastic products degrade under natural environment (light, temperature and humidity, mechanical wear, etc.) and continuously release secondary micro-plastics (particle size <5mm). Micro-plastics are a new type of environmental pollutants that exist widely in any environmental medium, and are found in oceans, rivers, land, atmosphere and soil. Such micro-plastics can diffuse and migrate to the global environment through the atmosphere, and enter the ecological chain and become a new type of environmental pollutant. Precise capture of micro-plastics released by plastic aging sources is crucial for pollution tracing, migration mechanism research and risk assessment.

[0003] Existing micro-plastic collection equipment such as active atmospheric sampler has a single mode and is only suitable for collecting air-borne micro-plastics in non-rainfall period, ignoring the deposition flux carried by rainwater, and has certain limitations. In order to solve the above problems, the present application provides an atmospheric micro-plastic source collector. SUMMARY

[0004] The present application aims to provide an atmospheric micro-plastic source collector, which improves and solves the problems.

[0005] TECHNICAL SOLUTION An atmospheric micro-plastic source collector is provided with a collection device, which comprises: a glass rainfall collection bottle arranged inside a stainless steel lower protective cover, and a stainless steel pipe one arranged on the glass rainfall collection bottle; a stainless steel upper protective cover arranged on the top of the stainless steel pipe one, and a stainless steel screen arranged at the connection; an electromagnetic valve one arranged on the stainless steel pipe one close to one end of the glass rainfall collection bottle, and a PLC controller arranged on the outer wall of the stainless steel lower protective cover; a screening device arranged on the collection device, which comprises: a stainless steel pipe two arranged in the middle section of the stainless steel pipe one and vertically arranged at the horizontal position of the stainless steel pipe one and in communication with the stainless steel pipe one; an electromagnetic valve two arranged on the stainless steel pipe two; an air extractor arranged on the outer wall of the stainless steel lower protective cover and in communication with the stainless steel pipe two; a shell arranged on the stainless steel pipe two and located at the side of the electromagnetic valve two, and a connecting block symmetrically arranged on the shell and penetratingly provided with a jack; a frame inserted into the shell, and a stainless steel screen arranged on the frame; a box body arranged on the outer wall of the frame, a fixed plate arranged in the box body, springs symmetrically arranged on the two sides of the fixed plate, and plug rods symmetrically arranged on the two sides of the springs and inserted into the jacks on the connecting block.

[0006] Further, the shell is symmetrically provided with a sliding groove, and the frame top and bottom are symmetrically provided with sliding rails and the sliding groove is in sliding connection.

[0007] Further, the shell and the frame connection are provided with a sealing ring.

[0008] Further, the plug rod is provided with a rubber sleeve.

[0009] Further, the frame outer side wall is provided with a handle.

[0010] Further, the other end of the plug rod is provided with a limiting block.

[0011] Further, the box body top is symmetrically provided with a hollow groove, the hollow groove is slidably provided with a moving rod, and one end of the moving rod is fixedly connected with the limiting block.

[0012] Further, the other end of the moving rod is provided with a dial block.

[0013] Beneficial effects: When the device is used, the user places the entire collection device at the designated position, and the plastic sample is placed in the stainless steel conduit. The upper protective cover of the stainless steel can prevent the microplastics released by the sample from being blown away by the natural airflow. The lower protective cover of the stainless steel can protect the main body part of the collection device. During the precipitation period, the user opens the electromagnetic valve one and closes the electromagnetic valve two through the PLC controller, and the microplastics enter the lowermost glass precipitation collection bottle along the stainless steel conduit one with the precipitation. During the non-precipitation period, the electromagnetic valve one is closed, and the electromagnetic valve two is continuously opened. Under the action of the air extractor (equipped with a battery, which can operate continuously for a long time), the microplastics move horizontally along the stainless steel conduit two with the airflow and finally gather on the stainless steel screen (pore size. millimeter), and each component cooperates to complete the collection of microplastics in different environments. After a period of use, the user can disassemble the frame and filter screen to process the collected microplastics, and clean the filter screen for the next use, and the cooperation of each component improves the practicality and flexibility of the entire device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a structural schematic diagram of the lower protective cover of the stainless steel in the present application; Figure 3 is a structural schematic diagram of the collection device in the present application; Figure 4 is a structural schematic diagram of the shell in the present application; Figure 5 is a structural schematic diagram of the shell and the frame in the present application; Figure 6 is an enlarged structural schematic diagram of the position A in the present application; Figure 7 is a schematic view of the cross-sectional structure of the insertion rod in the present application.

[0015] Reference signs 1, collecting device; 11, stainless steel lower protective cover; 12, glass precipitation collection bottle; 13, stainless steel conduit one; 14, stainless steel upper protective cover; 15, 5-mesh stainless steel screen; 16, electromagnetic valve one; 17, PLC controller; 2, screening device; 21, stainless steel conduit two; 211, electromagnetic valve two; 212, air extractor; 22, housing; 221, connecting block; 222, chute; 223, sealing ring; 224, rubber sleeve; 23, frame; 231, 500-mesh stainless steel screen; 232, handle; 24, box body; 241, fixed plate; 242, spring; 243, insertion rod; 244, limiting block; 25, empty slot; 251, moving rod; 252, push block. DETAILED DESCRIPTION

[0016] In order to make the technical scheme of the present application clearer, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0017] EMBODIMENT Reference Figures 1-7 A kind of atmospheric micro plastic source collector is provided with collecting device 1, the collecting device 1 includes: glass precipitation collection bottle 12 is arranged in the inside of stainless steel lower protective cover 11, and 5-mesh stainless steel screen is arranged at the top of the stainless steel conduit one 13 on glass precipitation collection bottle 12; Stainless steel upper protective cover 14 is arranged at the top of the stainless steel conduit one 13, and is provided with 5-mesh stainless steel screen at the connecting portion;Electromagnetic valve one 16 is arranged on the stainless steel conduit one 13 close to the one end of glass precipitation collection bottle 12, and PLC controller 17 is arranged on the outer wall of the stainless steel lower protective cover 11;The collecting device 1 is provided with screening device 2, and the screening device 2 includes: stainless steel conduit two 21 is arranged in the middle section of the stainless steel conduit one 13, and is perpendicular to the horizontal position of the stainless steel conduit one 13 and is communicated;Electromagnetic valve two 211 is arranged on the stainless steel conduit two 21;Air extractor 212 is arranged on the outer wall of the stainless steel lower protective cover 11, and the air extractor 212 is communicated with the stainless steel conduit two 21;Housing 22 is arranged on the stainless steel conduit two 21, and is located at the side of electromagnetic valve two 211, and connecting block 221 is symmetrically arranged on the housing 22, and insertion hole is arranged on the connecting block 221;Frame 23 is inserted and arranged in the inside of the housing 22, and 500-mesh stainless steel screen 231 is arranged on the frame 23;Box body 24 is arranged on the outer wall of the frame 23, fixed plate 241 is arranged in the inside of the box body 24, spring 242 is symmetrically arranged on the both sides of the fixed plate 241, insertion rod 243 is symmetrically arranged on the both sides of the spring 242, and the insertion rod 243 is inserted with the insertion hole on the connecting block 221.

[0018] The user will put the whole collection device 1 to the designated position, and place the plastic sample inside the stainless steel conduit 13. The upper protective cover 14 can prevent the microplastics released by the sample from being blown away by natural air flow. The lower protective cover 11 can protect the main body of the collection device 1. During the precipitation period, the user opens the electromagnetic valve 16 and closes the electromagnetic valve 211 by PLC controller. The microplastics enter the lowermost glass precipitation collection bottle 12 along the stainless steel conduit 13 with the precipitation. During the non-precipitation period, the electromagnetic valve 16 is closed, and the electromagnetic valve 211 continues to be opened. Under the action of the air extractor 212 (equipped with a battery, which can operate continuously for a long time), the microplastics move horizontally along the stainless steel conduit 21 and finally gather on the 500-mesh stainless steel screen 231 (pore size 0.03 mm). The cooperation of each component completes the collection of microplastics in different environments.

[0019] After a period of use, the user can press the insertion rod 243. The insertion rod 243 moves in the opposite direction when pressed. At the same time, the user pulls the frame 23 outward with force. The inside of the frame 23 is the 500-mesh stainless steel screen 231. Therefore, the user can take out the frame 23 to process the microplastics collected on the screen, ensuring the normal use of the screen in the future and preventing the screen from being blocked due to excessive microplastics. After cleaning, the user can insert the frame 23 together with the filter screen back into the shell 22. Then, the user releases the hand pressing the insertion rod 243. Under the action of the spring 242, the insertion rod 243 quickly resets and connects the block to limit the frame 23.

[0020] Further, the shell 22 is symmetrically provided with a sliding groove 222, and the top and bottom of the frame 23 are symmetrically provided with sliding rails and are slidingly connected with the sliding groove 222. The design of the sliding groove 222 and the sliding rail improves the smoothness of the movement of the frame 23 on the shell 22, and improves the practicability and flexibility of the whole device.

[0021] Further, the connection between the shell 22 and the frame 23 is provided with a sealing ring 223. The sealing ring 223 can prevent leakage of microplastics or loosening of the connection between the shell 22 and the frame 23.

[0022] Further, the insertion rod 243 is provided with a rubber sleeve 224. The rubber sleeve 224 is soft in texture and good in material resistance. The user wears the rubber sleeve 224 on the outer end of the insertion rod 243. The rubber sleeve can protect the outer shell of the insertion rod 243 and prevent the insertion rod 243 from being accidentally touched, causing the frame 23 to be unstable when placed.

[0023] Further, the frame 23 is provided with a handle 232 on the outer side wall. The handle 232 provides a force point and a force space for the user to control the movement of the frame 23.

[0024] Further, the other end of the inserting rod 243 is provided with a limiting block 244. The inside of the box body 24 is a hollow groove, the limiting block 244 and the inside of the box body 24 are in sliding connection, the box body 24 is provided with an opening at both ends, the opening is matched with the movement of the inserting rod 243, the diameter of the opening is smaller than that of the limiting block 244, therefore the inserting rod 243 moves within a specified distance, the limiting block 244 can prevent the inserting rod 243 from derailing.

[0025] Further, the top of the box body 24 is symmetrically provided with a hollow groove 25, the hollow groove 25 is provided with a moving rod 251 in sliding connection, one end of the moving rod 251 is fixedly connected with the limiting block 244. Further, the other end of the moving rod 251 is provided with a knob 252. The user can control the movement of the moving rod 251 through the knob 252, at the same time, the moving rod 251 can control the synchronous movement of the inserting rod 243, the user can control the inserting rod 243 through the moving rod 251 and the knob 252, which provides the user with a space for exerting force on the inserting rod 243.

[0026] The above-mentioned embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An atmospheric microplastic source collector is provided with a collecting device (1), the collecting device (1) comprising: a stainless steel lower protective cover (11) provided with a glass precipitation collection bottle (12) inside, the glass precipitation collection bottle (12) being provided with a stainless steel pipe one (13); a stainless steel upper protective cover (14) provided on the top of the stainless steel pipe one (13), a connecting portion being provided with a 5-mesh stainless steel screen; an electromagnetic valve one (16) provided on the stainless steel pipe one (13) close to one end of the glass precipitation collection bottle (12), a side wall of the stainless steel lower protective cover (11) being provided with a PLC controller (17); characterized in that the collecting device (1) is provided with a screening device (2), the screening device (2) comprising: a stainless steel pipe two (21) provided in the middle section of the stainless steel pipe one (13) and being perpendicular to the stainless steel pipe one (13) in a horizontal position and communicating with the stainless steel pipe one (13); an electromagnetic valve two (211) provided on the stainless steel pipe two (21); an exhaust fan (212) provided on the side wall of the stainless steel lower protective cover (11), and the exhaust fan (212) communicating with the stainless steel pipe two (21); a housing (22) provided on the stainless steel pipe two (21) and located at the side of the electromagnetic valve two (211), the housing (22) being provided with a connecting block (221) symmetrically on it, and the connecting block (221) being provided with a jack on it; a frame (23) jacked into the housing (22), the frame (23) being provided with a 500-mesh stainless steel screen (231) on it; a box body (24) provided on the side wall of the frame (23), the box body (24) being provided with a fixed plate (241) inside, the fixed plate (241) being provided with a spring (242) symmetrically on both sides, the spring (242) being provided with a plug rod (243) symmetrically on both sides, and the plug rod (243) being jacked into the jack on the connecting block (221).

2. An atmospheric microplastic source harvester according to claim 1, wherein, The housing (22) is symmetrically provided with a sliding groove (222), and the frame (23) is symmetrically provided with a sliding rail on the top and the bottom and is in sliding connection with the sliding groove (222).

3. An atmospheric microplastic source harvester according to claim 2, wherein, The connecting portion of the housing (22) and the frame (23) is provided with a sealing ring (223).

4. The atmospheric microplastic source harvester of claim 1, wherein, The plug rod (243) is provided with a rubber sleeve (224).

5. The atmospheric microplastic source harvester of claim 1, wherein, The frame (23) is provided with a handle (232) on the side wall.

6. The atmospheric microplastic source harvester of claim 1, wherein, The other end of the plug rod (243) is provided with a limiting block (244).

7. The atmospheric microplastic source harvester of claim 1, wherein, The box body (24) is symmetrically provided with a hollow groove (25) on the top, and a moving rod (251) is slidably provided on the hollow groove (25), and one end of the moving rod (251) is fixedly connected with the limiting block (244).

8. An atmospheric microplastic source harvester according to claim 7, wherein, The other end of the moving rod (251) is provided with a dial block (252).

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