Rapid filtering device for pretreatment of water sample for environmental monitoring

Abstract

The invention belongs to the technical field of filtration and separation, and particularly relates to an environment monitoring water sample pretreatment rapid filtering device which comprises a base and an annular shell arranged above the base, a controller is fixedly installed on the end face of the base, and a water pouring opening is formed in the top of the annular shell. The annular channel is formed in the annular shell, the interior of the annular channel is rotationally connected with a rotating ring, the annular shell is provided with a driving mechanism, the driving mechanism drives the rotating ring to rotate, a water receiving opening is formed in the inner wall of the annular channel, and the water receiving opening and the water pouring opening are kept coaxial. According to the water sample pretreatment filtering device, the situation that subsequent water sample detection is affected by mutual mixing of multiple water samples can be avoided, impurities filtered on the filtering net piece can be automatically discharged, the water sample pretreatment filtering efficiency is ensured, the large-batch water sample filtering requirement is met, and meanwhile personnel can be reminded to replace the filtering net piece in time.

Description

Technical Field

[0001] The invention belongs to the technical field of filtration and separation, and in particular relates to a rapid filtration device for pre-processing water samples for environmental monitoring. Background Art

[0002] Filtration equipment is widely used and can effectively remove suspended particles and impurities in water, separate substances in different phases, and make water samples meet the requirements of subsequent analysis. Whether it is measuring soluble pollutants or protecting precision analytical instruments, filtration equipment plays an indispensable bridging role, ensuring the accuracy and reliability of water sample testing.

[0003] Currently, when rapidly filtering water samples, devices with filter elements such as filter screens are mostly used to guide water into the filter element, where impurities in the water sample are intercepted by pores of a specific pore size on the filter element to avoid affecting subsequent analysis requirements. For example, patent publication number CN216878086U discloses a rapid filtration device for pre-treatment of water samples for environmental monitoring. During the filtration process of batch water samples, although the filter element can intercept solid particulate impurities, since each water sample is relatively independent, the water samples are easily mixed with each other when filtering through the same filter element, which has an adverse effect on the accuracy of subsequent analysis. At the same time, if the filter element is cleaned after each water sample is filtered, the batch filtration efficiency will be reduced. If the cleaning interval is too long, impurities will clog the mesh, which will not only reduce the filtration efficiency, but the water sample may also carry away impurities embedded in the mesh, thereby affecting the filtration effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a rapid filtration device for pre-treatment of water samples for environmental monitoring in order to solve the above problems.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a rapid filtration device for pre-treatment of water samples for environmental monitoring, comprising a base and an annular housing disposed above the base, a controller fixedly mounted on the end surface of the base, a water pouring port disposed on the top of the annular housing, and further comprising: An annular channel is provided inside the annular housing. A rotating ring is rotatably connected to the annular channel. A driving mechanism is installed on the annular housing, and the driving mechanism drives the rotating ring to rotate. A water inlet is provided on the inner wall of the annular channel, and the water inlet is coaxial with the water pouring port. A plurality of filter hoppers are fixedly connected to the side wall of the rotating ring and arranged on the inner side of the annular channel, and the filter hoppers are evenly distributed in an annular shape about the axis of the annular shell, and a detachable filter mesh is installed inside each filter hopper; An arc-shaped inner cover is fixedly mounted on the inner wall of the annular outer shell, and a water receiving platform is fixedly mounted on the inner wall of the arc-shaped inner cover; An air supply heating unit is installed on the end surface of the base and is connected to the interior of the arc-shaped inner cover; A material receiving unit is installed between the base and the annular housing; The mesh detection unit is installed on the outside of the annular shell.

[0006] Preferably, the driving mechanism includes a driving shaft rotatably arranged on the side wall of the annular shell, a gear is installed on the shaft end of the driving shaft, and the gear is engaged with the inner wall of the rotating ring, a driving motor is fixedly installed on the back of the annular shell, and the output end of the driving motor is transmission-connected to the driving shaft, and the driving motor is electrically connected to the controller.

[0007] Preferably, the air supply heating unit includes an air pump fixedly mounted on the end face of the base, and the output end of the air pump is fixedly connected to an air supply pipe, the air supply pipe is connected to the interior of the arc-shaped inner cover, the inner wall of the annular outer shell is located on the inner side of the arc-shaped inner cover and is provided with a plurality of air jet holes, and each air jet hole corresponds to the position of a corresponding filter bucket, two arc-shaped electric heating plates are fixedly mounted on the interior of the arc-shaped inner cover, and the air pump and the arc-shaped electric heating plates are both electrically connected to the controller.

[0008] Preferably, the material receiving unit includes a material receiving barrel fixedly mounted on the end face of the base, and the annular outer shell is fixedly connected to the top of the material receiving barrel, the material receiving barrel is communicated with the interior of the annular outer shell, a plurality of air outlet holes are provided on the side wall of the material receiving barrel, and a humidity detection component connected to the plurality of air outlet holes is installed on the outer wall of the material receiving barrel.

[0009] Preferably, the mesh detection unit includes an integrally formed mounting cover arranged on the outer wall of the annular shell, and an ultraviolet disinfection lamp is fixedly installed on the inner wall of the mounting cover, and two symmetrically arranged insulating blocks are fixedly installed inside each of the filter buckets, and the two insulating blocks on the same side are arranged on the side of the filter element on the same side close to the arc-shaped inner cover, and a groove is provided at one end of each insulating block close to the filter element on the same side, and a photosensitive resistor is fixedly installed inside each groove, and a transparent plate is fixedly installed on the notch of each groove, and the inner wall of the annular shell and each filter bucket are jointly installed with a power-on component, and each photosensitive resistor is electrically connected to the controller through the power-on component.

[0010] Preferably, the humidity detection component includes an exhaust hopper fixedly mounted on the outer side wall of the receiving barrel, and the end of the exhaust hopper is fixedly connected to a detection box, the end face of the detection box is fixedly plugged with a humidity detector, and the detection end of the humidity detector is arranged on the inner side of the detection box, and the side wall of the detection box away from the exhaust hopper is provided with an exhaust hole.

[0011] Preferably, the power-on component includes two arc-shaped electrode blocks fixedly inserted into the end of the filter bucket away from the filter element on the same side, and two insulating pads corresponding to the positions of the ultraviolet disinfection lamps are fixedly installed on the inner wall of the annular shell, and the end faces of the two insulating pads are fixedly installed with electrode columns, and the end faces of the two electrode columns are in sliding contact with the arc-shaped electrode block on the same side, and the photosensitive resistor is electrically connected to the controller through the arc-shaped electrode block and the electrode column on the same side.

[0012] Preferably, an outer frame-type sealing gasket is fixedly installed on the outer side of the inner wall of the annular channel, and an inner frame-type sealing gasket is fixedly installed on the inner side of the inner wall of the annular channel. The outer frame-type sealing gasket is in sliding contact with the outer side wall of the rotating ring, and the inner frame-type sealing gasket is in sliding contact with the inner wall of the filter bucket.

[0013] Preferably, an infrared detector is fixedly connected to the inner wall of the water inlet, and the infrared detector is electrically connected to the controller.

[0014] Compared with existing technologies, the advantages of a rapid filtration device for pre-treatment of water samples for environmental monitoring are: Through the mutual cooperation of the provided base, annular shell, controller, water pouring port, annular channel, rotating ring, driving mechanism, water inlet, multiple filter buckets and filter elements, and the design of multiple annular movable filter elements, it is possible to avoid the mixing of multiple water samples and the influence of subsequent water sample detection, and each filter element will perform a flipping action after a single filtration, so that the impurities filtered on the filter element can be automatically discharged.

[0015] Through the cooperation of the arc-shaped inner cover and the air supply heating unit, each filter bucket and filter element can be backblown and dried to ensure that impurities and moisture in the filter element and filter bucket are fully removed, so that each filter bucket and filter element can be used continuously to meet the pre-treatment filtration needs of large quantities of water samples.

[0016] By setting up a mesh detection unit, the mesh blockage and deformation of each filter element can be detected after each filter element performs a filtering action, thereby avoiding the secondary use of blocked and deformed filter elements, which affects the filtering effect of water samples, and can disinfect the filter element and the inner wall of the filter bucket to avoid bacterial growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a rapid filtration device for pre-processing water samples for environmental monitoring provided by the present invention; Figure 2 This is a schematic cross-sectional view of a rapid filtration device for pre-processing water samples for environmental monitoring provided by the present invention; Figure 3This is a schematic diagram of the three-dimensional structure of a rotating ring of a rapid filtration device for pre-treatment of water samples for environmental monitoring provided by the present invention; Figure 4 This is a schematic diagram of the internal structure of a ring-shaped housing of a rapid filtration device for pre-treatment of water samples for environmental monitoring provided by the present invention; Figure 5 The invention provides a rapid filtration device for pre-treatment of water samples for environmental monitoring. Figure 2 A magnified view of the structure of part A; Figure 6 This is a structural schematic diagram of a mesh detection unit of a rapid filtration device for pre-treatment of water samples for environmental monitoring provided by the present invention; Figure 7 The invention provides a rapid filtration device for pre-treatment of water samples for environmental monitoring. Figure 6 A magnified view of the structure of part B.

[0018] In the figure: 1 base, 2 annular shell, 3 controller, 4 water pouring port, 5 annular channel, 6 rotating ring, 7 driving mechanism, 71 driving shaft, 72 gear, 73 driving motor, 8 water inlet, 9 filter bucket, 10 filter element, 11 arc-shaped inner cover, 12 water receiving platform, 13 air supply and heating unit, 131 air pump, 132 air supply pipe, 133 air jet hole, 134 arc-shaped electric heating plate, 14 material receiving unit, 141 material receiving barrel, 142 air outlet , 15 mesh detection unit, 151 mounting cover, 152 ultraviolet disinfection lamp, 153 insulating block, 154 photosensitive resistor, 155 transparent plate, 16 humidity detection component, 161 exhaust hopper, 162 detection box, 163 humidity detector, 164 exhaust hole, 17 power supply component, 171 arc electrode block, 172 insulating pad, 173 electrode column, 18 outer frame type sealing gasket, 19 inner frame type sealing gasket, 20 infrared detector. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-Figure 7As shown, a rapid filtration device for pre-treatment of water samples for environmental monitoring includes a base 1 and an annular shell 2 arranged above the base 1, a controller 3 is fixedly installed on the end face of the base 1, and a water pouring port 4 is provided on the top of the annular shell 2. It also includes: an annular channel 5, the annular channel 5 is opened inside the annular shell 2, and the inside of the annular channel 5 is rotatably connected to a rotating ring 6, the annular shell 2 is installed with a driving mechanism 7, and the driving mechanism 7 drives the rotating ring 6 to rotate, the inner wall of the annular channel 5 is opened with a water receiving port 8, and the water receiving port 8 is coaxial with the water pouring port 4, the driving mechanism 7 includes a driving shaft 71 rotatably arranged on the side wall of the annular shell 2, the shaft end of the driving shaft 71 is installed with a gear 72, and the gear 72 is meshed with the inner wall of the rotating ring 6, a driving motor 73 is fixedly installed on the back of the annular shell 2, and the output end of the driving motor 73 is transmission-connected to the driving shaft 71, and the driving motor 73 is electrically connected to the controller 3.

[0021] An infrared detector 20 is fixedly connected to the inner wall of the water inlet 8 and is electrically connected to the controller 3 . The infrared detector 20 emits infrared rays and calculates the intensity of the received infrared rays through the receiving end to determine whether a water sample passes through the water inlet 8 .

[0022] Multiple filter buckets 9 are fixedly plugged into the side walls of the rotating ring 6 and are arranged on the inner side of the annular channel 5, and each filter bucket 9 is evenly distributed in a ring shape about the axis of the annular shell 2. A detachable filter mesh 10 is installed inside each filter bucket 9. An outer frame-type sealing gasket 18 is fixedly installed on the outer side of the inner wall of the annular channel 5, and an inner frame-type sealing gasket 19 is fixedly installed on the inner side of the inner wall of the annular channel 5. The outer frame-type sealing gasket 18 is in sliding contact with the outer side wall of the rotating ring 6, and the inner frame-type sealing gasket 19 is in sliding contact with the inner wall of the filter bucket 9. The outer frame-type sealing gasket 18 and the inner frame-type sealing gasket 19 can prevent airflow from entering the filter bucket 9 that is filtering water samples, thereby avoiding affecting the normal filtration of water samples.

[0023] The curved inner cover 11 is fixedly mounted on the inner wall of the annular outer shell 2, and a water receiving platform 12 is fixedly mounted on the inner wall of the curved inner cover 11. The air supply heating unit 13 is mounted on the end face of the base 1 and is connected to the interior of the curved inner cover 11. The air supply heating unit 13 includes an air pump 131 fixedly mounted on the end face of the base 1, and the output end of the air pump 131 is fixedly connected to an air supply pipe 132, and the air supply pipe 132 is connected to the interior of the curved inner cover 11. The inner wall of the annular outer shell 2 is located on the inner side of the curved inner cover 11 and is provided with a plurality of jet holes 133, and each jet hole 133 corresponds to the position of the corresponding filter bucket 9. Two curved electric heating plates 134 are fixedly mounted on the interior of the curved inner cover 11. The air pump 131 and the curved electric heating plate 134 are both electrically connected to the controller 3. An air filter is installed at the suction end of the air pump 131 to prevent dust in the air from being transported to the interior of each filter bucket 9.

[0024] The receiving unit 14 is installed between the base 1 and the annular shell 2. The receiving unit 14 includes a receiving barrel 141 fixedly installed on the end surface of the base 1, and the annular shell 2 is fixedly connected to the top of the receiving barrel 141. The receiving barrel 141 is connected to the inside of the annular shell 2. The side wall of the receiving barrel 141 is provided with a plurality of air outlet holes 142. The outer wall of the receiving barrel 141 is provided with a humidity detection component 16 connected to the plurality of air outlet holes 142. The interior of the receiving barrel 141 is provided with a retractable bottom plate for conveniently transferring the collected impurities. The humidity detection component 16 It includes an exhaust hopper 161 fixedly mounted on the outer wall of the receiving barrel 141, and the end of the exhaust hopper 161 is fixedly connected to a detection box 162, the end face of the detection box 162 is fixedly plugged with a humidity detector 163, and the detection end of the humidity detector 163 is arranged on the inner side of the detection box 162, and an exhaust hole 164 is provided on the side wall of the detection box 162 away from the exhaust hopper 161. The humidity detector 163 can detect water vapor in the air flow and output an electrical signal to the controller 3 when the humidity is lower than the threshold value. This is an existing mature technology and will not be elaborated here.

[0025] The mesh detection unit 15 is installed on the outside of the annular shell 2. The mesh detection unit 15 includes an integrally formed mounting cover 151 arranged on the outer wall of the annular shell 2, and an ultraviolet disinfection lamp 152 is fixedly installed on the inner wall of the mounting cover 151. Two symmetrically arranged insulating blocks 153 are fixedly installed inside each filter bucket 9, and the two insulating blocks 153 on the same side are arranged on the side of the filter element 10 on the same side close to the arc-shaped inner cover 11. A groove is provided at one end of each insulating block 153 close to the filter element 10 on the same side, and a photosensitive resistor 154 is fixedly installed inside each groove. A transparent plate 155 is fixedly installed on the notch of each groove. The inner wall of the annular shell 2 and each filter bucket 9 are jointly installed with a power supply component 17, and each photosensitive resistor 154 are electrically connected to the controller 3 through the power-on component 17. The power-on component 17 includes two arc-shaped electrode blocks 171 fixedly inserted into the filter bucket 9 at one end away from the filter element 10 on the same side. Two insulating pads 172 corresponding to the position of the ultraviolet disinfection lamp 152 are fixedly installed on the inner wall of the annular shell 2, and the end faces of the two insulating pads 172 are fixedly installed with electrode columns 173. The end faces of the two electrode columns 173 are in sliding contact with the arc-shaped electrode block 171 on the same side. The photosensitive resistor 154 is electrically connected to the controller 3 through the arc-shaped electrode block 171 on the same side and the electrode column 173. The photosensitive resistor 154 can receive ultraviolet light and change its own resistance based on the intensity change of the ultraviolet light. The photosensitive resistor 154 adopts an ultraviolet photosensitive resistor.

[0026] The operating principle of the present invention is now described as follows: the controller 3 is connected to the external power supply circuit and the controller 3 is started. Subsequently, the personnel places the water sample container containing the filtered water sample on the water receiving platform 12 and aligns the opening of the water sample container with the water receiving port 8. Then, the personnel pours the water sample to be filtered into the water pouring port 4. The water sample will fall into the uppermost filter bucket 9 and the impurities in the water sample will be filtered and intercepted by the side filter element 10. The filtered water sample will flow into the water sample container through the filter bucket 9 and the water receiving port 8. At this point, the filtration work of one water sample is completed, and the personnel can take away the water sample container containing the filtered water sample. After the controller 3 is started, the controller 3 will control the infrared detector 20 to work. Initially, since the water sample to be filtered has not been poured into the filter bucket 9, no water sample passes through the water inlet 8. At this time, the infrared rays emitted by the transmitting end of the infrared detector 20 will not be blocked by the water sample, so the infrared ray intensity received by the receiving end of the infrared detector 20 is relatively large. At this time, the infrared detector 20 will not output an electrical signal to the controller 3. When the personnel pour the water sample into the filter bucket 9, since the water sample passes through the water inlet 8, the infrared rays emitted by the infrared detector 20 are blocked by the water sample. Therefore, the infrared ray intensity irradiated to the receiving end of the infrared detector 20 is significantly weakened, so the infrared detector 20 will immediately output an electrical signal to the controller 3. Output electrical signal, and when the water sample is filtered, the water sample flowing through the water receiving port 8 disappears. At this time, the infrared intensity received by the receiving end of the infrared detector 20 is too large again, so the electrical signal output by the infrared detector 20 to the controller 3 is disconnected, and the controller 3 receives the electrical signal output by the infrared detector 20 until the electrical signal disappears. The controller 3 will control the drive motor 73 to work at a timing, and the drive motor 73 will drive the rotating ring 6 to rotate a certain angle through the drive shaft 71 and the gear 72, so that the filter bucket 9 that has just filtered the water sample rotates clockwise from the upper side by a certain angle, and a new filter bucket 9 will rotate to the upper side of the annular channel 5. At this time, the personnel can start filtering the next water sample; At the same time, after the electric signal output by the infrared detector 20 received by the controller 3 disappears, the controller 3 will control the air pump 131 and the two arc-shaped electric heating plates 134 to start working. The air pump 131 can suck in the outside air and transport it to the inside of the arc-shaped inner cover 11 through the air supply pipe 132, and the arc-shaped electric heating plate 134 can heat the air transported in. The heated hot air is ejected through each jet hole 133. The hot air ejected from the jet hole 133 will flow in the opposite direction to the filter bucket 9 (that is, from the water outlet end of the filter bucket 9 to the inside of the filter bucket 9). The hot air can take away the water on the surface of the filter hopper 9 and the filter hopper 10, so as to avoid the residual water on the surface of the filter hopper 9 and the filter hopper 10 from mixing with the water sample when it is used next time, thereby affecting the accuracy of the subsequent water sample analysis. After multiple filtering actions, the filter hopper 9 and the filter hopper 10 that filter the water sample at the beginning will rotate 180 degrees, so that the filter hopper 9 and the filter hopper 10 are inverted. At this time, under the action of the airflow, the filter hopper 9 and the filter hopper 10 are reversed. The impurities blown out of the filter hopper 9 will fall into the receiving barrel 141 and be trapped in the receiving barrel 141 by the air outlet 142 (the side wall of the receiving barrel 141 is provided with an opening, and a sealing cover is provided at the opening. By opening the sealing cover, the impurities inside the receiving barrel 141 can be transferred out). The airflow discharged through the air outlet 142 will carry water vapor into the exhaust hopper 161 and into the detection box 162. The humidity detector 163 in the detection box 162 will detect the humidity in the airflow. When the humidity inside each filter hopper 9 and the filter mesh 10 is After the moisture is fully dried, the humidity of the airflow entering the detection box 162 is low (for example, the humidity is lower than 20%). At this time, the humidity detector 163 will output an electrical signal to the controller 3, and the controller 3 will control the air pump 131 and the arc-shaped electric heating plate 134 to stop working. On the contrary, if the humidity in the airflow is high, the controller 3 will not receive the electrical signal output by the humidity detector 163. At this time, the controller 3 will control the air pump 131 and the arc-shaped electric heating plate 134 to continue working to ensure continuous drying of the filter 9 and the filter element 10. After the controller 3 is started, the controller 3 will control the ultraviolet disinfection lamp 152 to work synchronously. After each water sample filtering action, the controller 3 will start a mesh detection action after controlling the driving motor 73 to work at a fixed time. At this time, the controller 3 will control the arc electrode block 171, the electrode column 173, the photosensitive resistor 154 and the connection circuit of the measurement circuit of the controller 3 itself to be connected. When the mesh of the filter element 10 is not deformed or blocked (although the air flow backflow can clean the impurities trapped on the surface of the filter element 10, some impurities that match the mesh aperture cannot escape from the mesh due to the engagement with the mesh after being stuck inside the mesh, so there is still a small possibility that the mesh of the filter element 10 is blocked), the light emitted by the ultraviolet disinfection lamp 152 can pass through the filter element 10 normally and smoothly to illuminate the two photosensitive resistors 154 on the same side, so the two photosensitive resistors 154 output to the measurement circuit of the controller 3 through the arc electrode block 171 and the electrode column 173. The electrical signal strength is kept within the threshold value, and when the mesh of the filter element 10 is blocked or deformed, at this time, since some of the mesh holes are blocked and cannot pass through, and the mesh deformation causes part of the light to be scattered, thereby causing the light intensity irradiated to the photosensitive resistor 154 to become low. At this time, the electrical signal strength detected by the measurement circuit of the controller 3 is lower than the threshold value. At this time, the controller 3 will issue a prompt message through its own voice module. After receiving the prompt message, the personnel should replace the damaged filter element 10 in time after completing the current water sample filtration work (after the current water sample filtration work is completed, the controller 3 controls the drive motor 73 according to the program to rotate the rotating ring 6 a certain angle. At this time, the damaged filter element 10 will rotate to the water pouring spout 4. The personnel can remove the filter element 10 through the water pouring spout 4, or manually clean the blocked mesh holes to avoid affecting the normal water sample filtration work). At the same time, the ultraviolet disinfection lamp 152 can also disinfect and sterilize each filter bucket 9 and filter element 10 to prevent bacterial growth; After all the water samples have been filtered, the operator presses the stop button of the controller 3. At this time, the controller 3 will control the air pump 131 and the arc-shaped electric heating plate 134 to continue working until the controller 3 receives the electrical signal output by the humidity detector 163. Then the controller 3 will shut down to ensure that the residual water in the filter hopper 9 and the filter element 10 is fully removed to avoid affecting the next use. Among them, when filtering a large number of water samples, external automatic sample delivery equipment and automatic sampling equipment can be used for cooperation. For example, the sample container is clamped by the sample delivery robot and the water sample is poured into the pouring port 4. After a single filtration is completed, the container containing the filtered water sample is taken away by the external sampling robot. At this time, the controller 3 controls the drive motor 73 to drive the rotating ring 6 to rotate a certain angle at a certain interval (the interval time can be pre-programmed), and cooperates with the automatic sample delivery equipment and the automatic sampling equipment to automatically filter the water sample.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rapid filtration device for pre-treatment of water samples for environmental monitoring, comprising a base (1) and an annular housing (2) arranged above the base (1), a controller (3) being fixedly mounted on the end surface of the base (1), and a water pouring port (4) being arranged on the top of the annular housing (2), characterized in that: Also includes: An annular channel (5) is provided inside the annular housing (2); a rotating ring (6) is rotatably connected inside the annular channel (5); a driving mechanism (7) is installed on the annular housing (2); and the driving mechanism (7) drives the rotating ring (6) to rotate; a water receiving port (8) is provided on the inner wall of the annular channel (5); and the water receiving port (8) and the water pouring port (4) are kept coaxial; A plurality of filter hoppers (9) are fixedly plugged into the side wall of the rotating ring (6) and are arranged on the inner side of the annular channel (5), and the filter hoppers (9) are evenly distributed in an annular shape about the axis of the annular housing (2), and a detachable filter screen (10) is installed inside each of the filter hoppers (9); An arc-shaped inner cover (11) is fixedly mounted on the inner wall of the annular outer shell (2), and a water receiving platform (12) is fixedly mounted on the inner wall of the arc-shaped inner cover (11); An air supply heating unit (13) is mounted on the end surface of the base (1) and is connected to the interior of the arc-shaped inner cover (11); A material receiving unit (14) is installed between the base (1) and the annular housing (2); A mesh detection unit (15) is installed on the outside of the annular housing (2).

2. A rapid filtration device for pre-treatment of water samples for environmental monitoring according to claim 1, characterized in that: The driving mechanism (7) comprises a driving shaft (71) rotatably arranged on the side wall of the annular housing (2); a gear (72) is mounted on the shaft end of the driving shaft (71), and the gear (72) is meshed with the inner wall of the rotating ring (6); a driving motor (73) is fixedly mounted on the back of the annular housing (2), and the output end of the driving motor (73) is transmission-connected to the driving shaft (71); and the driving motor (73) is electrically connected to the controller (3).

3. A rapid filtration device for pre-treatment of water samples for environmental monitoring according to claim 1, characterized in that: The air supply heating unit (13) comprises an air pump (131) fixedly mounted on the end surface of the base (1), and the output end of the air pump (131) is fixedly connected to an air supply pipe (132), and the air supply pipe (132) is connected to the interior of the arc-shaped inner cover (11). The inner wall of the annular outer shell (2) is provided with a plurality of air injection holes (133) at a position inside the arc-shaped inner cover (11), and each air injection hole (133) corresponds to the position of a corresponding filter bucket (9). Two arc-shaped electric heating plates (134) are fixedly mounted inside the arc-shaped inner cover (11), and the air pump (131) and the arc-shaped electric heating plates (134) are both electrically connected to the controller (3).

4. A rapid filtration device for pre-treatment of water samples for environmental monitoring according to claim 1, characterized in that: The material receiving unit (14) comprises a material receiving barrel (141) fixedly mounted on the end surface of the base (1), and the annular shell (2) is fixedly connected to the top of the material receiving barrel (141), the material receiving barrel (141) is communicated with the inside of the annular shell (2), a plurality of air outlet holes (142) are formed on the side wall of the material receiving barrel (141), and a humidity detection component (16) connected to the plurality of air outlet holes (142) is installed on the outer side wall of the material receiving barrel (141).

5. The rapid filtration device for pre-treatment of water samples for environmental monitoring according to claim 1, characterized in that: The mesh detection unit (15) comprises a mounting cover (151) integrally formed and arranged on the outer wall of the annular housing (2), and an ultraviolet disinfection lamp (152) is fixedly installed on the inner wall of the mounting cover (151); two symmetrically arranged insulating blocks (153) are fixedly installed inside each of the filter buckets (9), and the two insulating blocks (153) on the same side are arranged on the side of the filter mesh member (10) on the same side close to the arc-shaped inner cover (11); a groove is provided at one end of each of the insulating blocks (153) close to the filter mesh member (10) on the same side, and a photosensitive resistor (154) is fixedly installed inside each of the grooves, and a transparent plate (155) is fixedly installed at the notch of each of the grooves; an electric component (17) is installed on the inner wall of the annular housing (2) and each of the filter buckets (9), and each of the photosensitive resistors (154) is electrically connected to the controller (3) through the electric component (17).

6. A rapid filtration device for pre-treatment of water samples for environmental monitoring according to claim 4, characterized in that: The humidity detection component (16) comprises an exhaust hopper (161) fixedly mounted on the outer wall of the receiving barrel (141), and the end of the exhaust hopper (161) is fixedly connected to a detection box (162), the end surface of the detection box (162) is fixedly plugged with a humidity detector (163), and the detection end of the humidity detector (163) is arranged on the inner side of the detection box (162), and the side wall of the detection box (162) away from the exhaust hopper (161) is provided with an exhaust hole (164).

7. The rapid filtration device for pre-treatment of water samples for environmental monitoring according to claim 5, characterized in that: The power supply component (17) comprises two arc-shaped electrode blocks (171) fixedly plugged into the end of the filter bucket (9) away from the filter screen element (10) on the same side; two insulating pads (172) corresponding to the positions of the ultraviolet disinfection lamps (152) are fixedly mounted on the inner wall of the annular housing (2); and electrode columns (173) are fixedly mounted on the end surfaces of the two insulating pads (172); the end surfaces of the two electrode columns (173) are in sliding contact with the arc-shaped electrode block (171) on the same side; and the photosensitive resistor (154) is electrically connected to the controller (3) via the arc-shaped electrode block (171) on the same side and the electrode column (173).

8. The rapid filtration device for pre-treatment of water samples for environmental monitoring according to claim 1, characterized in that: An outer frame-type sealing gasket (18) is fixedly mounted on the outer side of the inner wall of the annular channel (5), and an inner frame-type sealing gasket (19) is fixedly mounted on the inner side of the inner wall of the annular channel (5); the outer frame-type sealing gasket (18) is in sliding contact with the outer side wall of the rotating ring (6), and the inner frame-type sealing gasket (19) is in sliding contact with the inner wall of the filter bucket (9).

9. The rapid filtration device for pre-treatment of water samples for environmental monitoring according to claim 1, characterized in that: An infrared detector (20) is fixedly plugged into the inner wall of the water inlet (8), and the infrared detector (20) is electrically connected to the controller (3).

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