CN113030059B

CN113030059B - Convenient detection device for heavy metal content of polluted river

Info

Publication number: CN113030059B
Application number: CN202110544212.6A
Authority: CN
Inventors: 王淑如
Original assignee: Guangdong Huasai Energy Co ltd
Current assignee: Guangdong Huasai Energy Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-08-06
Anticipated expiration: 2041-05-19
Also published as: CN113030059A

Abstract

The invention discloses a convenient detection device for heavy metal content in a polluted river, which comprises a fixing device, a collecting device, a detection device and a power device, wherein the fixing device is connected with the power device through a bearing, two sides of one end of the power device are respectively connected with the collecting device and the detection device, the fixing device comprises a frame, an installation seat and a supporting seat, the frame is L-shaped, one side of the frame is fixedly connected with one side of the installation seat, the installation seat is movably connected with the supporting seat, the collecting device is arranged on the installation seat, the installation seat is movably connected with the collecting device, a supporting groove is arranged on the installation seat, the collecting device is movably connected with the wall surface of the supporting groove, the collecting device comprises a gas collecting component, a fan, a filtering component and a sealing plate, the lower end of the gas collecting component is communicated with the upper end of the filtering component, the filtering component comprises a filtering box, and a collecting cavity and a power device are sequentially arranged on the filtering box from top to bottom, Filter chamber and fan installation cavity.

Description

Convenient detection device for heavy metal content of polluted river

Technical Field

The invention relates to the technical field of polluted river heavy metal detection, in particular to a convenient detection device for the content of heavy metal in a polluted river.

Background

In the process of developing industry, people pay more attention to the protection of environment gradually, heavy metal parts generated in the industrial development process are recycled through purification treatment, however, part of heavy metal is directly discharged along with tail gas and sewage, inorganic and organic colloid particles can generate strong complexation on metal elements to form colloid-state particles which are small in size, have large specific surface area and are difficult to precipitate as the true dissolved-state heavy metal particles, wherein elements such as arsenic, cadmium, mercury and lead have large toxicity, and can be accumulated in vivo along with the intake of aquatic organisms to enrich the heavy metal elements, and once the heavy metal particles are eaten, the heavy metal particles can harm human bodies.

At present, in the process of collecting river samples, on-site sampling-laboratory analysis is still used as a main means, although the detection accuracy can be improved through static observation, a water body matrix is relatively complex, other impurities are easily introduced during treatment, in addition, because river heavy metal pollution has strong burstiness and randomness, diffusion can be formed in a short time, the whole river is polluted, in order to narrow the heavy metal pollution range, the water body needs to be detected on site, the hazard is reduced, however, mercury element is frequently used in the industry such as lighting lamps and lanterns, the mercury element is easy to volatilize, in the process of water drainage and air exhaust, once the temperature is low, gaseous mercury and other toxic gases are easy to settle on the surface of the river, once the mercury is sucked, the detection personnel are injured, and the conventional heavy metal content detection device can only detect the heavy metals in a dissolved state and a particle state, especially, the direct detection precision of the heavy metal in a particle state is low, the separation of the heavy metal particles from the bottom mud can influence the detection efficiency, and the practical performance can be greatly reduced.

Disclosure of Invention

The invention aims to provide a convenient detection device for heavy metal content in a polluted river, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a receive convenient detection device of pollution river heavy metal content, includes fixing device, collection device, detection device and power device, and fixing device and power device pass through the bearing and connect, and power device one end both sides are connected with collection device and detection device respectively, and fixing device includes frame, mount pad and supporting seat, and the frame is "L" type, and frame one side and mount pad one side fastening connection, mount pad and supporting seat swing joint are equipped with collection device on the mount pad, mount pad and collection device swing joint.

The fixing device is an installation foundation of the invention, other devices are installed, the collecting device collects the gaseous mercury on the surface of the river, the detecting device separates and detects the river water sample and the granular state and dissolved state heavy metals at the bottom of the river, so that the detection result is more accurate, the power device is a main power source, power output is carried out through the self-flowing of the river, the gaseous mercury is collected in an auxiliary way, the heavy metals and the silt at the bottom of the river are separated, the power input is more stable through the connection of a bearing, the power device is respectively connected with the collecting device and the detecting device, the power input is carried out, the frame is inverted L, one side is used for fixing the installation seat, the other side is directly inserted into the river edge during automatic detection, the whole device is fixed, the gaseous mercury on the river surface is prevented from causing harm to the bodies of detection personnel, and the detection and sampling safety performance is improved, the rotary support is carried out through movable connection.

When the heavy metal content is detected, the frame is inserted into the shore, the bottom end of the support is inserted into the river bottom, the rotation is prevented by the wedge block, the power paddle rotates under the impact of river water, the fan is started, the toxic gas on the surface of the river is pumped by the air duct, the sealing plate is pressed down by the pressure difference along with the reduction of the pressure of the collecting cavity, the toxic gas enters the filter cavity along the gas collecting channel, the toxic gas is adsorbed by the active carbon, the filter box is driven to rotate by the gas collecting gear, the flowing performance of the toxic gas is reduced, the diffusion of the toxic gas is prevented, the purified gas is discharged into the vent groove by the fan through the pipeline, the slice moves downwards along with the increase of the air pressure, the bottom mud is gradually cut off by the slice, when the bottom mud moves to the lowest end, the bottom mud is completely separated from the river bottom, the drainage channel is communicated with the gas guide port, the bottom mud is blown up, and the bottom mud is diluted by the river water, so that the bottom mud is decomposed in the river water, the filter membrane through the multilayer setting on the separation disc is to the granule attitude, the heavy metal of dissolved state separates in addition silt, carry out the centrifugation through separation gear input torque, improve particle separation efficiency, make each attitude particle form the layering, be convenient for improve and detect the precision, fluorescence spectrum appearance detects heavy metal content through the probe, the disorder nature through river flow, constantly strike the stack shell, thereby drive the separation disc vibrations, prevent that the filter membrane from being blockked up, influence layering efficiency, after detecting the completion, the section is drawn out in the grooving under self elastic action, reset spring resets, it shifts up to drive the closing plate, seal up the filter chamber, prevent the secondary leakage.

Further, a support groove is arranged on the mounting seat, the collecting device is movably connected with the wall surface of the support groove, the collecting device comprises a gas collecting component, a fan, a filtering component and a sealing plate, the lower end of the gas collecting component is communicated with the upper end of the filtering component, the filtering component comprises a filtering box, the filtering box is sequentially provided with a collecting cavity, a filtering cavity and a fan mounting cavity from top to bottom, a partition plate is arranged between the collecting cavity and the filtering cavity, the partition plate is circumferentially provided with a plurality of filtering holes, the fan and the fan mounting cavity are tightly connected, the upper end of the filtering box is provided with an air inlet, the sealing plate is movably connected with the air inlet, the sealing plate extends downwards and is provided with a plurality of reset springs, one side of the reset springs, away from the sealing plate, is tightly connected with the partition plate, the filtering box is provided with an air outlet, the air inlet end of the fan is communicated with the filtering cavity through the air outlet, activated carbon is arranged in the filtering cavity, the gas collecting component comprises a gas collecting disc and an air duct, and a plurality of gas collecting flow passages are arranged on the gas collecting disc, the gas collection flow channel is communicated with the gas inlet, and one end of the gas guide tube is communicated with the gas collection flow channel.

The mounting seat rotatably supports the collecting device through the supporting groove, the gas collecting assembly extracts volatile toxic gas on the river surface, the collected gas is guided to the filtering assembly to be collected, the content of the toxic gas on the river surface is detected, the collecting cavity and the filtering cavity are provided with the partition plates, the guided gas is dispersed through the partition plates, the filtering efficiency of the toxic gas is improved, the partition plates guide the flow through the filtering holes, the fan is fixed through the fan mounting cavity, the air inlet is opened and closed through the sealing plate, the toxic gas is prevented from being volatilized again through movable connection, personal harm is caused to detection personnel, the sealing plate is lifted and reset through the reset spring, the sealing plate is guaranteed to be closed when the detection is finished, the connection performance is guaranteed through fastening connection, the activated carbon is arranged inside the filtering cavity, the toxic gas such as gaseous mercury and the like is collected and adsorbed through the activated carbon, and the filtered gas is discharged through the fan, toxic gas on the surface of the river is collected through a plurality of air ducts arranged in the circumferential direction, and flow guide is carried out through a gas collection flow channel on a gas collection disc.

Further, fixing device still includes the pipeline, be equipped with a plurality of air channels on the supporting seat, the fan is given vent to anger the end and is passed through pipeline and air channel intercommunication, the mount pad lower extreme is equipped with the turn-around groove, supporting seat one end and turn-around groove swing joint, power device includes the power oar, transmission shaft and transmission gear pair, power oar one side is connected through transmission shaft and transmission gear pair, transmission gear pair includes drive gear, gas collection gear and separation gear, the drive gear both ends mesh with gas collection gear and separation gear flank of tooth respectively, gas collection gear one side and rose box bottom side fastening connection, separation gear bottom side and supporting seat top fastening connection, separation gear and turn-around groove swing joint, be equipped with the shaft hole on the mount pad, the transmission shaft passes through bearing and shaft hole lateral wall and connects.

The fan passes through pipeline and air channel intercommunication, utilize the drainage wind, the supporting seat passes through the separation gear and supports in the rotary groove inner wall bottom, it rotates to flow the drive power oar through the river, the power oar carries out power take off through the transmission gear pair, carry out the transmission through the transmission shaft, the bearing is established to transmission shaft outside cover and is carried out the gyration and support, support the bearing through the shaft hole, both ends carry out the flank of tooth meshing with gas collection gear and separation gear respectively about the drive gear, the transmission efficiency is improved, it rotates to drive the rose box through the gas collection gear, avoid toxic gas local concentration too high, influence the accuracy nature of gas collection.

Further, the mounting seat extends downwards to be provided with a fixed seat, the bottom side of the mounting seat is fixedly connected with the upper end of the fixed seat, the middle of the fixed seat is provided with a fixed groove, the supporting seat is movably connected with the inner wall of the fixed groove, the fixed seat is symmetrically provided with a flow passing groove along the river flow direction, the supporting seat comprises a barrel body and a support, the support is in an inverted cone shape, the air channel extends from the barrel body to the support, the barrel body is hermetically connected with the support, a section is arranged in the air channel and is movably connected with the air channel, the section is an elastic sheet, the support is provided with a cutting groove, the side wall of the cutting groove is provided with a plurality of sliding grooves, the section is in sliding connection with the sliding grooves, the mounting seat is provided with a mounting groove, the detection device comprises a fluorescence spectrometer, a probe and a separation assembly, the outer side of the fluorescence spectrometer is fixedly connected with the inner side wall surface of the mounting groove, the fluorescence spectrometer and the probe is connected with the probe through a circuit, the separation gear passes through hole to enter the barrel body, be equipped with the separable set in the middle of the stack shell, separable set includes the separation disc, and the separation disc is equipped with a plurality of separation framves along circumference, and the separation disc passes through separation frame and stack shell inside wall fastening connection, is equipped with a plurality of draw-in grooves on the separation disc, is equipped with the filter membrane in the draw-in groove, and the filter membrane aperture reduces from the outside to the inboard gradually, is equipped with a plurality of grooves that link up on the stack shell.

The connection performance is improved through fastening connection, the fixing seat carries out limiting support on the supporting seat through a fixing groove, the supporting seat carries out double-point support on the supporting seat through a separation gear, the stress of the separation gear is reduced, the deformation is prevented, the overflowing groove is arranged on the fixing seat to drain water, the device body is fixed through the inverted cone-shaped bracket, when automatic detection is carried out, the bottom end of the inverted cone-shaped bracket is inserted into silt at the bottom side of a river to be fixed, the device is prevented from being washed away when the flow velocity is too high, one end of the ventilating groove is communicated with a pipeline, penetrates through the barrel body and extends onto the bracket, and is communicated with the grooving, the ventilating groove is sealed through a slice, when sampling detection is carried out, the slice slides down along the ventilating groove, granular heavy metal in the river bottom is intercepted, a target sample is obtained, the fluorescence spectrometer is fixed through the mounting groove, sample data is obtained through a probe, a separation assembly is arranged in the middle of the barrel body, heavy metal in to the bed mud is separated through separation module, prevents that heavy metal local concentration is too high, and the influence detects the precision, and the separating disc passes through the separation frame to be supported on the stack shell inner wall, fixes the filter membrane through the draw-in groove, sieves particulate state and dissolved state's heavy metal through the filter membrane, carries out the layering according to the particle size, and the filter membrane aperture reduces from the outside to inboard gradually, and inlayer aperture is 0.22 micron, and inferior inlayer aperture is 0.45 micron.

As optimization, when the section gliding to the bottom, the section inserts in the grooving, cuts off the bed mud, and at this moment, drainage and air guide port intercommunication blow up the bed mud with high-pressure draught direction bed mud, carry out the breakage to the bed mud, rise along with the bed mud, through the rivers acceleration bed mud broken degree that flows, make dissolving state heavy metal, particulate state heavy metal and silt granule carry out the layering in separating assembly, improve and detect the accuracy.

As the optimization, the guide post setting is in the middle of reset spring, and reset spring slides along the guide post surface, and the baffle is stretched through the pressure of direction spout to reset spring and is led, prevents that reset spring radial deviation from influencing sealing performance, and the closing plate wedge sets up, improves sealing performance, prevents that toxic gas from volatilizing once more.

As optimization, the air guide pipe collects toxic gas on the surface of the river through the inclined cuts, and the inclined cuts which are obliquely arranged ensure the advection efficiency of the airflow layer, so that the collection efficiency of the toxic gas is improved.

As optimization, the device is fixed through the wedge block with the inverted triangular design, and the tip of the wedge block is inserted into the sludge to prevent the device from rotating and influencing the water flow passing rate.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, the toxic gas on the river surface is extracted through the air duct, the sealing plate is pressed down through the pressure difference along with the reduction of the pressure of the collection cavity, the toxic gas enters the filter cavity along the gas collection flow channel, the toxic gas is adsorbed through the activated carbon, the filter box is driven to rotate through the gas collection gear, the flowing performance of the toxic gas is reduced, the diffusion of the toxic gas is prevented, and the gaseous mercury on the river surface is detected firstly; the bottom mud is gradually cut off through slicing, when the bottom mud moves to the lowest end, the bottom mud is completely separated from the river bottom, the drainage channel is communicated with the air guide port, the bottom mud is blown up, the bottom mud is decomposed in river water due to dilution through the river water, the bottom mud is input through a separation gear and subjected to centrifugation, the particle separation efficiency is improved, particles in various states are layered, heavy metals in a dissolved state and a granular state are detected, the heavy metals in three states are detected, and the detection precision is improved conveniently; heavy metal in to the bed mud is separated through separation module, prevent that heavy metal local concentration is too high, the influence detects the precision, fix the filter membrane through the draw-in groove, sieve granule attitude and dissolved state's heavy metal through the filter membrane, the filter membrane through the multilayer setting on the separation disc is to granule attitude, dissolved state's heavy metal separates in addition silt, carry out the layering according to the particle size, the filter membrane aperture reduces from the outside to inboard gradually, inlayer aperture is 0.22 micron, inferior inlayer aperture is 0.45 micron, sieve dissolved state and granule attitude heavy metal respectively.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of the general structure of the present invention;

FIG. 2 is a schematic representation of the river flow direction of the present invention;

FIG. 3 is a sectional view taken along line A-A of the view of FIG. 2;

FIG. 4 is an enlarged view of portion C of the view of FIG. 3;

FIG. 5 is an enlarged view of a portion D of the view of FIG. 3;

FIG. 6 is a cross-sectional view taken along line B-B of the view of FIG. 3;

FIG. 7 is a schematic bottom flow of gas in accordance with the present invention;

FIG. 8 is a schematic illustration of toxic gas inflow of the present invention;

in the figure: 1-fixing device, 11-frame, 12-mounting seat, 121-supporting groove, 122-mounting groove, 123-rotary groove, 124-shaft hole, 13-supporting seat, 131-vent groove, 132-barrel body, 1321-through groove, 133-support, 1331-sliding groove, 1332-air guide port, 1333-cutting groove, 134-slice, 1341-drainage channel, 14-fixing seat, 141-fixing groove, 142-flow groove, 15-pipeline, 16-wedge block, 2-collecting device, 21-air collecting component, 211-air guide pipe, 2111-inclined notch, 212-air collecting disc, 2121-air collecting channel, 22-blower, 23-filtering component, 231-filtering box, 2311-collecting cavity, 2312-filtering cavity, 2313-an air inlet, 2314-an air outlet, 2315-a fan mounting groove, 232-activated carbon, 233-a clapboard, 2331-a guide chute, 2332-a filter hole, 24-a sealing plate, 25-a return spring, 26-a guide column, 3-a detection device, 31-a fluorescence spectrometer, 32-a probe, 33-a separation component, 331-a separation disc, 3311-a clamping groove, 332-a filter membrane, 333-a separation frame, 4-a power device, 41-a power paddle, 42-a transmission shaft, 43-a bearing, 44-a transmission gear pair, 441-a transmission gear, 442-a gas collection gear and 443-a separation gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides the technical scheme that:

as shown in figures 1-8, a convenient detection device for heavy metal content in a polluted river comprises a fixing device 1, a collecting device 2, a detection device 3 and a power device 4, wherein the fixing device 1 is connected with the power device 4 through a bearing 43, two sides of one end of the power device 4 are respectively connected with the collecting device 2 and the detection device 3, the fixing device 1 comprises a frame 11, a mounting seat 12 and a supporting seat 13, the frame 11 is L-shaped, one side of the frame 11 is fixedly connected with one side of the mounting seat 12, the mounting seat 12 is movably connected with the supporting seat 13, the collecting device 2 is arranged on the mounting seat 12, and the mounting seat 12 is movably connected with the collecting device 2.

The fixing device 1 is an installation foundation of the invention and is used for installing other devices, the collecting device 2 is used for collecting the gaseous mercury on the surface of a river, the detecting device 3 is used for separating and detecting a river water sample and granular and dissolved heavy metals at the bottom of the river, so that the detection result is more accurate, the power device 4 is a main power source and is used for outputting power through the flow of the river to assist in gaseous mercury collection and separating the heavy metals and sludge at the bottom of the river, the power device is connected through the bearing 43 to enable power input to be more stable, the power device 4 is respectively connected with the collecting device 2 and the detecting device 3 to carry out power input, the frame 11 is inverted L-shaped, one side is used for fixing the installation seat 12, the other side is directly inserted into the river edge during automatic detection, the whole device is fixed, and the gaseous mercury on the river surface is prevented from causing harm to the bodies of detection personnel, the detection sampling safety performance is improved, and the rotary support is carried out through the movable connection.

When the invention detects heavy metal content, the frame 11 is inserted into the shore, the bottom end of the bracket 133 is inserted into the river bottom, the rotation is prevented by the wedge 16, the power paddle 41 rotates under the impact of river water, the fan 22 is started, the toxic gas on the river surface is pumped by the air duct 211, the sealing plate 24 is pressed down by the pressure difference along with the reduction of the pressure of the collection cavity 2311, the toxic gas enters the filter cavity 2312 along the gas collection flow channel 2121, the toxic gas is adsorbed by the activated carbon 232, the filter box 231 is driven to rotate by the gas collection gear 442, the flowing performance of the toxic gas is reduced, the toxic gas is prevented from diffusing, the purified gas is discharged into the ventilation slot 131 by the fan 22 through the pipeline 15, the slice 134 gradually cuts off the bottom mud along with the increase of air pressure through the downward movement of the slice 134, when the slice moves to the lowest end, the bottom mud is completely separated from the river bottom, the drainage channel 1341 is communicated with the gas guide port 1332, the sediment is blown up, because the sediment is diluted through the river water, the sediment is decomposed in the river water, the granular heavy metals and the dissolved heavy metals and the sludge are separated through the filter membranes 332 arranged on the separation discs 331 in multiple layers, the separation efficiency of the particles is improved through the centrifugation of the input torque of the separation gear 443, the particles in each state are layered, the detection precision is convenient to improve, the fluorescence spectrometer 31 detects the content of the heavy metals through a probe, the barrel 132 is continuously impacted through the disorder of the river water flow, the separation discs 331 are driven to vibrate, the filter membranes 332 are prevented from being blocked, the layering efficiency is prevented from being influenced, after the detection is completed, the slices 134 are scribed out from the cutting grooves 1333 under the self elastic action, the reset springs 25 reset, the sealing plates 24 are driven to move upwards, the filter cavities 2312 are sealed, and secondary leakage is prevented.

As shown in fig. 3 to 4, a support groove 121 is arranged on the mounting seat 12, the collecting device 2 is movably connected with the wall surface of the support groove 121, the collecting device 2 includes a gas collecting assembly 21, a fan 22, a filter assembly 23 and a sealing plate 24, the lower end of the gas collecting assembly 21 is communicated with the upper end of the filter assembly 23, the filter assembly 23 includes a filter box 231, the filter box 231 is sequentially provided with a collecting cavity 2311, a filter cavity 2312 and a fan installation cavity 2315 from top to bottom, a partition plate 233 is arranged between the collecting cavity 2311 and the filter cavity 2312, the partition plate 233 is circumferentially provided with a plurality of filter holes 2332, the fan 22 is fixedly connected with the fan installation cavity 2315, the upper end of the filter box 231 is provided with an air inlet 2313, the sealing plate 24 is movably connected with the air inlet 2313, the sealing plate 24 is downwardly extended and provided with a plurality of return springs 25, one side of the return springs 25 away from the sealing plate 24 is fixedly connected with the partition plate 233, the filter box 231 is provided with an air outlet 2314, the air inlet end of the fan 22 is communicated with the filter cavity 2312 through the air outlet 2314, the filter cavity 2312 is internally provided with activated carbon 232, the gas collecting assembly 21 comprises a gas collecting disc 212 and a gas guide pipe 211, the gas collecting disc 212 is provided with a plurality of gas collecting channels 2121, the gas collecting channels 2121 are communicated with the gas inlet 2313, and one end of the gas guide pipe 211 is communicated with the gas collecting channels 2121.

The mounting seat 12 rotatably supports the collecting device 2 through the supporting groove 121, the gas collecting assembly 21 extracts volatile toxic gas on the river surface, the collected gas is guided to the filtering assembly 23 to be collected, the content of the toxic gas on the river surface is detected, the collecting cavity 2311 and the filtering cavity 2312 are provided with the partition plates 233, the drained gas is dispersed through the partition plates 233, the filtering efficiency of the toxic gas is improved, the partition plates 233 guide the flow through the filtering holes 2332, the fan 22 is fixed through the fan mounting cavity 2315, the air inlet 2313 is opened and closed through the sealing plate 24, the toxic gas is prevented from being volatilized again through movable connection, personal damage is caused to detection personnel, the sealing plate 24 is lifted and reset through the reset spring 25, the closing is guaranteed when the detection is completed, the connection performance is guaranteed through fastening connection, the activated carbon 232 is arranged inside the filtering cavity 2312, and the toxic gas such as gaseous mercury and the like is collected and adsorbed through the activated carbon 232, and the filtered gas is discharged through the fan 22, and the toxic gas on the surface of the river is collected through the plurality of gas guide tubes 211 arranged in the circumferential direction, and is guided through the gas collection flow channel 2121 on the gas collection disc 212.

As shown in fig. 1 and fig. 3, the fixing device 1 further comprises a pipeline 15, the supporting base 13 is provided with a plurality of air grooves 131, the air outlet end of the blower 22 is communicated with the air grooves 131 through the pipeline 15, the lower end of the mounting base 12 is provided with a rotary groove 123, one end of the supporting base 13 is movably connected with the rotary groove 123, the power device 4 comprises a power paddle 41, the transmission gear pair 44 is connected with the power paddle 41 through the transmission shaft 42, the transmission gear pair 44 comprises a transmission gear 441, a gas collection gear 442 and a separation gear 443, two ends of the transmission gear 441 are respectively meshed with tooth surfaces of the gas collection gear 442 and the separation gear 443, one side of the gas collection gear 442 is fixedly connected with the bottom side of the filter tank 231, the bottom side of the separation gear 443 is fixedly connected with the top end of the supporting base 13, the separation gear 443 is movably connected with the rotary groove 123, the mounting base 12 is provided with a shaft hole 124, and the transmission shaft 42 is connected with the side wall of the shaft hole 124 through a bearing 43.

The fan 22 is communicated with the ventilation groove 131 through the pipeline 15, the drainage wind is utilized, the supporting seat 13 is supported at the bottom end of the inner wall of the rotary groove 123 through the separation gear 443, the power paddle 41 is driven to rotate through river flow, the power paddle 41 outputs power through the transmission gear pair 44, transmission is performed through the transmission shaft 42, the bearing 43 is sleeved on the outer side of the transmission shaft 42 to perform rotary support, the bearing 43 is supported through the shaft hole 124, the upper end and the lower end of the transmission gear 441 are respectively meshed with the tooth surface of the gas collection gear 442 and the separation gear 443, the transmission efficiency is improved, the filter box 231 is driven to rotate through the gas collection gear 442, the local concentration of toxic gas is prevented from being too high, and the gas collection accuracy is influenced.

As shown in fig. 2 to 3 and 6, the mounting seat 12 is provided with a fixing seat 14 extending downward, the bottom side of the mounting seat 12 is fastened to the upper end of the fixing seat 14, a fixing groove 141 is provided in the middle of the fixing seat 14, the inner walls of the supporting seat 13 and the fixing groove 141 are movably connected, the fixing seat 14 is symmetrically provided with a through-flow groove 142 along the river direction, the supporting seat 13 includes a barrel 132 and a bracket 133, the bracket 133 is in an inverted cone shape, a through-flow groove 131 extends from the barrel 132 to the bracket 133, the barrel 132 is connected to the bracket 133 in a sealing manner, a slice 134 is provided in the through-flow groove 131, the slice 134 is movably connected to the through-flow groove 131, the slice 134 is an elastic sheet, the bracket 133 is provided with a through-flow groove 1333, the side wall of the through-flow groove 1331 is provided with a plurality of slide grooves 1331, the slice 134 is slidably connected to the through-flow groove 1331, the mounting seat 12 is provided with a mounting groove 122, the detecting device 3 includes a fluorescence spectrometer 31, a probe 32 and a separating assembly 33, the outside of the fluorescence spectrometer 31 is fastened to the inner side wall of the mounting groove 122, the fluorescence spectrometer 31 and the probe 32 are connected through a line, a through hole is formed in the separating gear 443, the probe 32 penetrates through the through hole to enter the barrel 132, a separating component 33 is arranged in the middle of the barrel 132, the separating component 33 comprises a separating disc 331, a plurality of separating frames 333 are arranged on the separating disc 331 along the circumferential direction, the separating disc 331 is fixedly connected with the inner side wall of the barrel 132 through the separating frames 333, a plurality of clamping grooves 3311 are formed in the separating disc 331, a filter membrane 332 is arranged in the clamping grooves 3311, the aperture of the filter membrane 332 is gradually reduced from the outer side to the inner side, and a plurality of through grooves 1321 are formed in the barrel 132.

The connection performance is improved through fastening connection, the fixed seat 14 carries out limiting support on the supporting seat 13 through the fixed groove 141, the separation gear 443 carries out double-point support on the supporting seat 13, the stress of the separation gear 443 is reduced, deformation is prevented, the overflow groove 142 is arranged on the fixed seat 14 to drain water, the device body is fixed through the inverted cone-shaped bracket, when automatic detection is carried out, the bottom end of the inverted cone-shaped bracket 133 is inserted into silt at the bottom side of a river to be fixed, the device is prevented from being washed away when the flow rate is too high, one end of the vent groove 131 is communicated with the pipeline 15, penetrates through the barrel body 132, extends onto the bracket 133, is communicated with the cutting groove 1333, the vent groove 131 is sealed through the cutting slice 134, when sampling detection is carried out, the cutting slice 134 slides down along the vent groove 131, particulate heavy metal in the river bottom is intercepted, a target sample is obtained, the fluorescence, and obtain sample data through probe 32, be equipped with separation module 33 in the middle of barrel 132, separate the heavy metal in the sediment through separation module 33, prevent that heavy metal local concentration is too high, influence the detection precision, separation disc 331 supports on barrel 132 inner wall through separation frame 33, fix filter membrane 332 through draw-in groove 3311, sieve the heavy metal of particulate state and dissolved state through the filter membrane, carry out the layering according to the particle size, filter membrane 332 aperture reduces from the outside to inboard gradually, innermost layer aperture is 0.22 micron, the secondary inner layer aperture is 0.45 micron.

As shown in fig. 5 and 7, when the slice 134 slides down to the bottom end, the slice 134 is inserted into the cutting groove 1333 to cut off the sediment, at the moment, the drainage passage 1341 is communicated with the air guide port 1332 to guide the high-pressure airflow to the sediment, so that the sediment is blown up to be crushed, the crushing degree of the sediment is accelerated by the flowing water flow along with the rising of the sediment, the dissolved heavy metal, the granular heavy metal and the sludge granules are layered in the separation assembly, and the detection accuracy is improved.

As shown in fig. 4 and 8, the guide post 26 is disposed in the middle of the return spring 25, the return spring 25 slides along the surface of the guide post 26, the partition plate 233 guides the pressing and extending of the return spring 25 through the guide sliding slot 2331, the radial deviation of the return spring 25 is prevented from affecting the sealing performance, and the sealing plate 24 is disposed in a wedge shape, so that the sealing performance is improved, and the toxic gas is prevented from being volatilized again.

As shown in FIGS. 1 to 3, the gas-guide tube 211 collects toxic gas on the surface of the river through the inclined notch 2111, and the inclined notch 2111 arranged obliquely ensures the advection efficiency of the airflow layer, thereby improving the collection efficiency of the toxic gas.

As shown in fig. 3, the device is fixed by a wedge 16 of an inverted triangular design, and the tip of the wedge 16 is inserted into the sludge to prevent the device from rotating and affecting the water flow rate.

The working principle of the invention is as follows: according to the invention, the gas guide pipe 211 is used for pumping the toxic gas on the surface of the river, the sealing plate 24 is pressed down by the pressure difference along with the pressure reduction of the collection cavity 2311, the toxic gas enters the filter cavity 2312 along the gas collection runner 2121, the active carbon 232 is used for adsorbing the toxic gas, the gas collection gear 442 is used for driving the filter box 231 to rotate, the flowing property of the toxic gas is reduced, the diffusion of the toxic gas is prevented, and the gaseous mercury on the surface of the river is detected firstly; the slice 134 moves downwards, the slice 134 gradually cuts off the bottom sediment, when the slice moves to the lowest end, the bottom sediment is completely separated from the river bottom, the drainage passage 1341 is communicated with the air guide port 1332 to blow up the bottom sediment, the bottom sediment is decomposed in the river water due to dilution through the river water, the separation gear 443 is used for inputting torque to carry out centrifugation, the particle separation efficiency is improved, particles in various states are layered, heavy metals in a dissolved state and a granular state are detected, and the detection precision is improved conveniently by detecting three forms of the heavy metals; heavy metal in to the bed mud is separated through separation module 33, prevent that heavy metal local concentration is too high, the influence detects the precision, separation disc 331 supports on stack shell 132 inner wall through separation frame 33, fix filter membrane 332 through draw-in groove 3311, sieve the heavy metal of particulate state and dissolved state through the filter membrane, filter membrane 332 through the multilayer setting on separation disc 331 is to the particulate state, the heavy metal of dissolved state separates in addition silt, carry out the layering according to the particle size, filter membrane 332 aperture reduces from the outside to inboard gradually, inlayer aperture is 0.22 micron, inferior inlayer aperture is 0.45 micron, sieve the heavy metal of dissolved state and particulate state respectively.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a convenient detection device of polluted river heavy metal content which characterized in that: the convenient detection device for the heavy metal content comprises a fixing device (1), a collecting device (2), a detection device (3) and a power device (4), wherein the fixing device (1) is connected with the power device (4) through a bearing (43), two sides of one end of the power device (4) are respectively connected with the collecting device (2) and the detection device (3), the fixing device (1) comprises a frame (11), a mounting seat (12) and a supporting seat (13), the frame (11) is L-shaped, one side of the frame (11) is fixedly connected with one side of the mounting seat (12), the mounting seat (12) is movably connected with the supporting seat (13), the collecting device (2) is arranged on the mounting seat (12), and the mounting seat (12) is movably connected with the collecting device (2);

the collecting device is characterized in that a supporting groove (121) is formed in the mounting seat (12), the collecting device (2) is movably connected with the wall surface of the supporting groove (121), the collecting device (2) comprises a gas collecting assembly (21), a fan (22), a filtering assembly (23) and a sealing plate (24), the lower end of the gas collecting assembly (21) is communicated with the upper end of the filtering assembly (23), the filtering assembly (23) comprises a filtering box (231), the filtering box (231) is sequentially provided with a collecting cavity (2311), a filtering cavity (2312) and a fan mounting cavity (2315) from top to bottom, a partition plate (233) is arranged between the collecting cavity (2311) and the filtering cavity (2312), a plurality of filtering holes (2332) are formed in the partition plate (233) along the circumferential direction, the fan (22) is fixedly connected with the fan mounting cavity (2315), an air inlet (2313) is formed in the upper end of the filtering box (231), and the sealing plate (24) is movably connected with the air inlet (2313), the sealing plate (24) extends downwards to be provided with a plurality of reset springs (25), one side, far away from the sealing plate (24), of each reset spring (25) is fixedly connected with the partition plate (233), the filter box (231) is provided with an air outlet (2314), the air inlet end of the fan (22) is communicated with the filter cavity (2312) through the air outlet (2314), activated carbon (232) is arranged inside the filter cavity (2312), the air collection assembly (21) comprises an air collection disc (212) and an air guide pipe (211), the air collection disc (212) is provided with a plurality of air collection flow channels (2121), the air collection flow channels (2121) are communicated with the air inlet (2313), and one end of the air guide pipe (211) is communicated with the air collection flow channels (2121).

2. The convenient detection device for the heavy metal content in the polluted river according to claim 1, which is characterized in that: the fixing device (1) further comprises a pipeline (15), a plurality of vent grooves (131) are formed in the supporting seat (13), the air outlet end of the fan (22) is communicated with the vent grooves (131) through the pipeline (15), a rotary groove (123) is formed in the lower end of the mounting seat (12), one end of the supporting seat (13) is movably connected with the rotary groove (123), the power device (4) comprises a power paddle (41), a transmission shaft (42) and a transmission gear pair (44), one side of the power paddle (41) is connected with the transmission gear pair (44) through the transmission shaft (42), the transmission gear pair (44) comprises a transmission gear (441), a gas collection gear (442) and a separation gear (443), two ends of the transmission gear (441) are respectively meshed with tooth surfaces of the gas collection gear (442) and the separation gear (443), one side of the gas collection gear (442) is fixedly connected with the bottom side of the filter box (231), the bottom side of the separating gear (443) is fixedly connected with the top end of the supporting seat (13), the separating gear (443) is movably connected with the rotary groove (123), a shaft hole (124) is formed in the mounting seat (12), and the transmission shaft (42) is connected with the side wall of the shaft hole (124) through a bearing (43).

3. The convenient detection device for the heavy metal content in the polluted river according to claim 2, characterized in that: the mounting seat (12) extends downwards to form a fixed seat (14), the bottom side of the mounting seat (12) is fixedly connected with the upper end of the fixed seat (14), a fixed groove (141) is formed in the middle of the fixed seat (14), the inner walls of the supporting seat (13) and the fixed groove (141) are movably connected, overflow grooves (142) are symmetrically formed in the fixed seat (14) along the river direction, the supporting seat (13) comprises a cylinder body (132) and a support (133), the support (133) is in an inverted cone shape, the vent grooves (131) extend from the cylinder body (132) to the support (133), the cylinder body (132) is hermetically connected with the support (133), a cutting piece (134) is arranged in the vent grooves (131), the cutting piece (134) is movably connected with the vent grooves (131), the cutting piece (134) is an elastic piece, cutting grooves (1333) are formed in the support (133), and a plurality of sliding grooves (1331) are formed in the side walls of the cutting grooves (1333), the section (134) is in sliding connection with the chute (1331), a mounting groove (122) is formed in the mounting seat (12), the detection device (3) comprises a fluorescence spectrometer (31), a probe (32) and a separating component (33), the outer side of the fluorescence spectrometer (31) is in fastening connection with the inner side wall surface of the mounting groove (122), the fluorescence spectrometer (31) is connected with the probe (32) through a line, a through hole is formed in the separating gear (443), the probe (32) penetrates through the through hole to enter the barrel body (132), the separating component (33) is arranged in the middle of the barrel body (132), the separating component (33) comprises a separating disc (331), the separating disc (331) is circumferentially provided with a plurality of separating frames (333), the separating disc (331) is in fastening connection with the inner side wall of the barrel body (132) through the separating frames (333), and a plurality of clamping grooves (3311) are formed in the separating disc (331), a filter membrane (332) is arranged in the clamping groove (3311), the aperture of the filter membrane (332) is gradually reduced from the outer side to the inner side, and a plurality of through grooves (1321) are formed in the barrel body (132).

4. The convenient detection device for the heavy metal content in the polluted river according to claim 3, wherein: the support (133) is provided with a plurality of air guide ports (1332), the slice (134) is provided with a drainage channel (1341), and when the slice (134) slides downwards to the bottom end, the drainage channel (1341) is communicated with the air guide ports (1332).

5. The convenient detection device for the heavy metal content in the polluted river according to claim 1, which is characterized in that: the sealing plate is characterized in that a plurality of guide sliding grooves (2331) are formed in the partition plate (233), a guide column (26) is arranged in the middle of the return spring (25), the bottom end of the guide column (26) is in sliding connection with the guide sliding grooves (2331), the top end of the guide column (26) is fixedly connected with the bottom side of the sealing plate (24), the sealing plate (24) is wedge-shaped, and the air inlet (2313) is in sliding connection with the sealing plate (24).

6. The convenient detection device for the heavy metal content in the polluted river according to claim 1, which is characterized in that: one end of the air duct (211), which is far away from the air collecting flow passage (2121), is provided with an inclined notch (2111).

7. The convenient detection device for the heavy metal content in the polluted river according to claim 3, wherein: the wedge block fixing device is characterized in that a plurality of wedge blocks (16) are arranged at the bottom end of the fixing seat (14) in the circumferential direction, the wedge blocks (16) are fixedly connected with the fixing seat (14), and the wedge blocks (16) are designed to be inverted triangles.