CN213749259U

CN213749259U - Automatic fluoride tester

Info

Publication number: CN213749259U
Application number: CN202022958083.9U
Authority: CN
Inventors: 郑智凝; 李靖
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-07-20
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses an automatic fluoride tester, which comprises a frame and a controller; the automatic filter membrane clamp pushing device is characterized in that a membrane storage system for storing the filter membrane clamp, a sampling device for sampling the filter membrane, a shearing device for shearing the sampled filter membrane and a reaction device which is located below the shearing device and used for extracting and measuring fluoride in the sheared filter membrane are sequentially arranged on the rack, an automatic filter membrane clamp pushing device is arranged on the rack located on the other side of the membrane storage system, and controlled ends of the automatic filter membrane clamp pushing device, the sampling device, the shearing device and the reaction device are respectively connected to the output end of the controller. The utility model discloses collect survey in an organic whole of fluoride in storage, filter membrane that the filter membrane pressed from both sides propelling movement, the sampling of filter membrane, the shearing of filter membrane, the filter membrane, can accomplish the purpose of fluoride survey in the air through an equipment, can realize carrying out the continuous survey to the fluoride in the ambient air under the condition of unmanned on duty.

Description

Automatic fluoride tester

Technical Field

The utility model relates to a fluoride detection device technical field, especially an automatic fluoride tester.

Background

The fluorides in the ambient air are gaseous fluorine and dust-like fluorine, the gaseous fluorine is mainly hydrogen fluoride, the fluorine-containing dust is mainly cryolite, fluorite, aluminum fluoride and phosphor lime, and the pollution is mainly from gas and dust discharged or dissipated by electrolytic aluminum plants, phosphate fertilizer plants, cryolite plants and the like. 400-430 mg/m of hydrogen fluoride³Can cause acute poisoning and death under the concentration, can affect the normal physiological functions of various tissues and organs by inhaling the gas and dust of low-concentration fluorine and compounds thereof for a long time, and even cause chronic fluorosis, so that the accurate determination of the fluorine pollution in the ambient air is very important.

The fluoride detection process mainly comprises three stages of sampling, separating and analyzing of a sample. After the fluoride sampling, the filter membrane in the filter membrane clamp needs to be taken out, the fluoride on the filter membrane is separated into the solution, and then the fluoride in the solution is analyzed and measured.

The existing fluoride measuring device has the following defects:

1) one or more of the sampling of the filter membrane, the shearing of the filter membrane or the fluoride determination are arranged in a split way, so that the whole fluoride determination process cannot be completed by one device, and the fluoride determination needs to be performed step by a plurality of devices, so that the determination process is complicated.

2) The existing measuring device needs to be watched and operated manually, and due to the split arrangement of all equipment rooms, the detection process is discontinuous, and a large amount of manpower and time are consumed.

3) When the filter membrane is taken and placed, the filter membrane needs to be manually placed in sampling equipment, and a sample can be sampled only once when the filter membrane is placed once.

4) At present, the sampled filter membrane needs to be sheared manually, the shearing size is not easy to control, and other pollutants are easily brought in to influence the testing accuracy.

5) When the liquid is added by manual operation, errors are easy to generate. And the liquid temperature can not be constant when the electrode is manually measured to read data, and a larger measurement error is generated.

6) The whole device cannot work normally in a high magnetic field environment.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve provides a fluoride automatic determinator to solve the problem that can't accomplish whole fluoride determine process through an equipment, with the purpose of fluoride survey in the realization completion air through an equipment, with can realize carrying out the continuous determination of high accuracy to the fluoride in the ambient air under the condition in unmanned guard and stronger magnetic field.

In order to solve the technical problem, the utility model adopts the following technical proposal.

The fluoride automatic determinator comprises a frame and a controller for controlling the whole operation of the device; the automatic filter membrane clamp pushing device is characterized in that a membrane storage system for storing the filter membrane clamp, a sampling device corresponding to a discharge port of the membrane storage system and used for sampling the filter membrane, a shearing device opposite to the discharge port of the sampling device and used for shearing the sampled filter membrane, and a reaction device located below the shearing device and used for extracting and determining fluoride in the sheared filter membrane are sequentially arranged on the rack, the rack located on the other side of the membrane storage system is provided with an automatic filter membrane clamp pushing device used for sequentially pushing the filter membrane clamp in the membrane storage system to the sampling device and the shearing device step by step, and controlled ends of the automatic filter membrane clamp pushing device, the sampling device, the shearing device and the reaction device are respectively connected to the output end of the controller; the rack is also provided with an air suction system for assisting the sampling equipment in sucking the sampling gas and a liquid storage system for storing a reagent for measurement of the reaction device; the liquid storage system is communicated with the reaction device through a liquid adding system.

Further optimize technical scheme, still be provided with in the frame that is located shearing mechanism one side and be used for pressing from both sides the useless filter membrane that collects to shearing back abandonment filter membrane and press from both sides the collection storehouse, filter membrane presss from both sides automatic pushing equipment and can presss from both sides the propelling movement to useless filter membrane in the collection storehouse with shearing back abandonment filter membrane.

According to the technical scheme, the automatic filter membrane clamp pushing device comprises a horizontal support table and a movable frame, the horizontal support table is positioned on a rack, the movable frame is arranged above the horizontal support table, a membrane storage system is positioned on the movable frame, and a filter membrane clamp discharging gap which penetrates through the front and the back is formed between the bottom end of the membrane storage system and the top end of the movable frame; the movable frame is internally provided with a push arm corresponding to the filter membrane clamp discharge gap through a push arm driving mechanism, and the controlled end of the push arm driving mechanism is connected to the output end of the controller.

According to the technical scheme, a transverse moving mechanism for driving the movable frame, the film storage system and the push arm to move left and right is arranged between the horizontal support platform and the movable frame, and the controlled end of the transverse moving mechanism is connected to the output end of the controller.

According to the technical scheme, the sampling device comprises a sampling box body, a movable clamping plate is arranged in the sampling box body, a sealing top plate is arranged below the movable clamping plate through spring connection, detection membrane clamping grooves are formed between the movable clamping plate and the top end of the inner wall of the sampling box body and between the movable clamping plate and the sealing top plate respectively, the sealing top plate is driven by a sealing driving mechanism to move up and down, and the sealing driving mechanism is arranged in the sampling box body; the top of sampling box is provided with the sampling structure who is used for carrying on the ambient gas filtration sampling side by side and is used for carrying on the blank test structure of blank contrast test with the same of sampling structure, detects the membrane draw-in groove and includes the detection membrane draw-in groove a that is linked together with the sampling structure and the detection membrane draw-in groove b that is linked together with the blank test structure.

According to the technical scheme, the shearing device comprises a shearing machine case, a membrane containing plate is arranged in the shearing machine case, a compressor for compressing a filter membrane clamp into the membrane containing plate, a circle cutting knife positioned on the inner side of the compressor for shearing the filter membrane clamp in the membrane containing plate and a template pushing plate positioned on the inner side of the circle cutting knife are sequentially arranged right above the membrane containing plate, the top ends of the compressor, the circle cutting knife and the template pushing plate are driven to lift through a driving mechanism, and the controlled end of the driving mechanism is connected to the output end of a controller; the film containing plate is provided with a circular leak hole matched with the circular cutting knife; the lower part of the membrane containing plate is provided with a paper shredding mechanism for shredding the cut filter membrane, the bottom end of the paper shredding mechanism is provided with a discharge hole capable of conveying the shredded filter membrane into the reaction device, and the controlled end of the paper shredding mechanism is connected to the output end of the controller.

Further optimize technical scheme, still be provided with under the circular small opening of flourishing lamina membranacea and be used for transmitting the inside paper feeding mechanism of shredded paper mechanism with the filter membrane after the cutting, paper feeding mechanism's controlled end is connected in the output of controller.

According to the technical scheme, the reaction device comprises a reaction case, a reaction system which can be used for adding liquid through a liquid adding system and extracting fluoride in the filter membrane is arranged on the reaction case, a determination system which can be inserted into the reaction system to determine the fluoride is further arranged above the reaction case, the controlled end of the reaction system is connected to the output end of the controller, and the determination system is in interactive connection with the controller.

According to the technical scheme, the reaction system comprises a reaction tank arranged on the top end face of the reaction cabinet and a liquid preparation tank capable of conveying prepared reaction liquid into the reaction tank, bottom valves and a bottom valve driving mechanism used for driving the bottom valves to lift and fall so as to achieve liquid drainage or not are arranged at the bottom ends of the reaction tank and the liquid preparation tank, and a liquid collecting bag used for containing discharged residual liquid is arranged below the reaction tank and the liquid preparation tank; and the reaction tank is provided with an ultrasonic separation mechanism for separating fluoride from the solution added with the filter membrane, and the controlled end of the ultrasonic separation mechanism is connected to the output end of the controller.

The technical scheme is further optimized, the ultrasonic separation mechanism comprises an ultrasonic oscillator arranged on the outer side wall of the reaction tank and an electromagnetic stirrer arranged in the reaction tank, and the controlled ends of the ultrasonic oscillator and the electromagnetic stirrer are respectively connected with the output end of the controller;

the outer side wall of the reaction tank is also provided with a thermostat, and the controlled end of the thermostat is connected with the output end of the controller.

Due to the adoption of the technical scheme, the utility model has the following technical progress.

The utility model discloses collect propelling movement that filter membrane pressed from both sides, the sampling of filter membrane, the shearing of filter membrane, survey in an organic whole of fluoride in the filter membrane, can accomplish the purpose of fluoride survey in the air through equipment, can realize carrying out continuous survey to the fluoride in the ambient air under the condition of unmanned guard, accord with national environmental protection standard of people's republic of China "survey filter membrane sampling/fluorinion selective electrode method of ambient air fluoride" (HJ 955-2018).

The utility model puts the filter membrane clamp filled with the processed filter membrane into a membrane storage system, automatically and continuously pushes the filter membrane clamp to a sampling device by a filter membrane clamp automatic pushing device under the unattended condition, adsorbs a certain amount of fluoride in the air onto the filter membrane through an air suction system, accurately records the flow through a mass flow meter and feeds back the flow to a controller; the controller can control the push arm to push the filter membrane clamp after sampling into the shearing device, and can push the waste filter membrane clamp into the waste filter membrane clamp bin after shearing is finished; the shearing device loads the sheared filter membrane into the reaction device for processing and analysis, and uploads the result through a program control, operation and transmission system.

The utility model discloses in the filter membrane of setting press from both sides automatic propelling movement equipment can realize automatic continuous propelling movement filter membrane clamp under the condition of unmanned guard, can control the pushing arm through pushing arm actuating mechanism and press from both sides the filter membrane from storing up propelling movement to sampling equipment in the membrane storehouse, and can control the pushing arm and push the filter membrane clamp after accomplishing the sampling and push to the shearing mechanism who sets up with the station in, can press from both sides the propelling movement to useless filter membrane clamp storehouse with dumped filter membrane again after accomplishing the shearing, automatic push membrane operation has been realized, the automatic propelling movement to the filter membrane clamp has been realized, it gets the operation to put to need not the staff at filter membrane clamp propelling movement in-process, the manual labor intensity has been reduced, high efficiency has been reached, automatic continuous sampling, the requirement of shearing.

When being provided with a plurality of sampling stations in the sampling equipment, the lateral shifting mechanism who sets up between horizontal support platform and the portable framework can more make this device can press from both sides the filter membrane and push into different sampling stations in, carries out the switching of propelling movement station for the arm that pushes away can more get into any one reaction station, makes this device's suitability stronger.

The utility model discloses in the survey of the sampling equipment that sets up mainly through filter membrane sampling method to ambient air fluoride, whole blank and laboratory blank can get rid of the environmental disturbance effectively, can guarantee the accuracy nature of experimental result effectively. When the temperature of environment changes, the constant temperature equipment who sets up can guarantee the accurate detection of experiment. The utility model discloses the survey according to HJ955 ambient air fluoride is strict, and is higher than this standard, can realize automatic continuous sampling monitoring under the condition of unmanned on duty.

The utility model discloses portable splint among the sampling equipment can the up-and-down motion through sealed actuating mechanism's drive, and then make and detect the membrane draw-in groove and open, closed to the filter membrane presss from both sides to change and gets and put.

The utility model discloses in the shearing mechanism who sets up can realize the continuous shearing to the filter membrane under the condition of unmanned guard, through the mode that sets up shredded paper mechanism in the below of flourishing lamina membranacea, make the utility model discloses can smash into unified, the piece that accords with the standard with the filter membrane after the circle of contact, the static that is produced by kibbling filter membrane in transportation process can be eliminated to the destatic system that sets up on the lateral wall of play paper funnel for in can falling into reaction unit steadily by kibbling filter membrane, need not the staff and get and put, avoided the influence of human factor.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

fig. 3 is a third schematic structural view of the present invention;

fig. 4 is a top view of the present invention;

FIG. 5 is a schematic structural view of the automatic pushing device for the filter membrane holders of the present invention;

FIG. 6 is a top view of the automatic pushing device for the filter membrane holder of the present invention;

FIG. 7 is a side view of the automatic pushing device for the filter membrane holder of the present invention;

FIG. 8 is a front view of the automatic pushing device for the filter membrane holder of the present invention;

fig. 9 is a schematic structural view of the membrane storage system of the present invention;

fig. 10 is a front view of the membrane storage system of the present invention;

figure 11 is a top view of the reservoir system of the present invention;

fig. 12 is a cross-sectional view of the sampling device of the present invention;

fig. 13 is a schematic structural diagram of the sampling apparatus of the present invention;

fig. 14 is a top view of the sampling device of the present invention;

fig. 15 is a side view of the sampling device of the present invention;

fig. 16 is a schematic structural view of the shearing device of the present invention;

fig. 17 is a rear view of the shearing apparatus of the present invention;

fig. 18 is a side view of the shearing apparatus of the present invention;

fig. 19 is a top view of the shearing apparatus of the present invention;

fig. 20 is a cross-sectional view of the shearing apparatus of the present invention;

fig. 21 is a partially cut-away view of the shearing device of the present invention;

FIG. 22 is a schematic structural view of a reaction apparatus of the present invention;

FIG. 23 is a rear view of the reaction apparatus of the present invention;

FIG. 24 is a side view of the reaction apparatus of the present invention;

FIG. 25 is a top view of the reaction apparatus of the present invention;

FIG. 26 is a sectional view of the reaction apparatus of the present invention;

FIG. 27 is an exploded view of the filter clamp of the present invention.

Wherein: 1. the device comprises a rack, 1a, a rack top plate, 1b, a rack middle plate, 1c and a rack bottom plate;

2. a membrane storage system 21, a membrane storage bin positioning frame body 211, top positioning grooves a and 22, a membrane storage bin 221, a first membrane storage bin 222, a second membrane storage bin 223, a membrane storage bin positioning frame 224, positioning bulges 225, a filter membrane clamping discharge gap 226 and a detachable side plate;

3. the device comprises a filter membrane clamp automatic pushing device, 31, a horizontal supporting table, 32, a movable frame body, 321, a membrane storage bin positioning frame body, 322, a top sliding groove, 323, a bottom end groove, 324, top positioning grooves b, 33, a pushing arm, 331, a first pushing arm, 332, a second pushing arm, 34, a pushing arm driving mechanism, 341, a first lead screw, 342, a driving gear, 343, a driven gear, 344, a guide rod, 35, a transverse moving mechanism, 351, a slideway a, 352, a vertical positioning plate, 353, a second lead screw, 354, a moving screw nut, 355, a driving motor a, 36, a limiting mechanism, 361, a limiting switch, 362, a vertical contact plate, 37, a position detection mechanism, 371, a position sensor, 372 and a position sensor support;

4. the device comprises a sampling device, 41, a sampling box body, 411, a groove, 42, a sampling structure, 421, a sampling air inlet pipe, 43, a blank test structure, 431, a blank test air inlet pipe, 44, a movable clamping plate, 441, a detection membrane clamping groove, 442, a protrusion, 45, a sealing driving mechanism, 452, a movable guide rail, 453, a steering air channel, 4531, a first transverse plate, 4532, a second transverse plate, 454, a lead screw a, 455, a nut a, 456, a driving motor b, 457, a guide roller, 458, a first spring, 459, a second guide roller, 4510, a second spring, 4511, a nut connecting plate a, 47, a flowmeter, 48, a limiter a, 49 and a sealing top plate;

5. reaction device, 51, reaction cabinet, 52, reaction tank, 521, liquid preparation tank, 522, reaction tank a, 523, reaction tank b, 524, electrode protection tank, 53, liquid receiving bag, 54, bottom valve driving mechanism, 541, support plate, 542, guide column, 543, screw connection plate b, 544, lead screw b, 545, screw b, 546, driving motor, 547, spring, 548, sealed cavity, 55, reaction system, 552, ultrasonic oscillator, 553, thermostat, 554, electromagnetic stirrer, 5541, electromagnetic stirring motor, 5542, driving shaft, 5543, magnet, 5544, rotor, 555, positioning clamp plate, 56, measuring system, 561, measuring electrode, 563, blow-dry system, 57, drainage system, 58, liquid feeding pipe support, 581, liquid feeding pipe head, 582, liquid feeding pipe, 59, bottom valve;

6. the paper cutting device comprises a cutting device, 61, a cutting case, 62, a circle cutting knife, 621, a middle template, 63, a pressing device, 631, a bottom template, 634, a slide way b, 635, a connecting column, 64, a driving mechanism, 641, a motor, 642, a connecting plate, 643, a screw rod, 65, a membrane containing plate, 651, a filter membrane containing groove, 66, a paper feeding mechanism, 661, a paper feeding roller, 662, a paper feeding driving motor, 67, a paper shredding mechanism, 671, a paper shredding knife, 672, a paper shredding driving motor, 68, a paper discharging hopper, 69, a static electricity removing system, 610, a limiter, 611, a mould pushing plate, 612 and a top template;

7. a liquid storage system 71, a standard liquid storage tank 72, a buffer liquid storage tank 73, a hydrochloric acid storage tank 74 and a sodium hydroxide storage tank;

8. a liquid adding system, 81, a first liquid adding pump, 82, a second liquid adding pump, 83, a third liquid adding pump, 84, a fourth liquid adding pump, 85, a fifth liquid adding pump, 86 and a sixth liquid adding pump;

9. the air suction system comprises an air suction system 91, a spring air pipe 92, an air suction pipeline 93 and a connector;

10. a waste filter membrane clamp collection bin;

11. the filter membrane presss from both sides, 111, membrane clip lid, 1111, first through-hole, 1112, arch, 1113, bell mouth, 112, silica gel sealed pad, 1121, sealed pad through-hole, 113, filter membrane, 114, membrane clip seat, 1141, second through-hole, 1142, constant head tank, 1143, spacing card limit.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments.

An automatic fluoride analyzer is shown in fig. 1 to 23, and includes a frame 1, a controller, a membrane storage system 2, a sampling device 4, a shearing device 6, and a reaction device 5.

The rack 1 is arranged in a vertical frame shape, and the rack 1 is divided into a rack top plate 1a, a rack middle plate 1b and a rack bottom plate 1c at intervals from top to bottom in sequence.

The controller is used for the whole function of controlling means, the utility model provides a controller adopts is the PLC controller, also can adopt the controller of other models. The controller is arranged in the antimagnetic box body, and can prevent the interference of a strong magnetic field to the controller.

The frame 1 is sequentially provided with a membrane storage system 2, a sampling device 4, a shearing device 6 and a reaction device 5. The membrane reservoir system 2 is used for storing the filter membrane clips.

The sampling device 4 corresponds to the discharge hole of the membrane storage system 2 and is used for sampling the filter membrane. The shearing device 6 corresponds to the discharge hole of the sampling device 4 and is used for shearing the filter membrane after sampling. The reaction device 5 is positioned below the shearing device 6 and is used for extracting and measuring fluoride in the sheared filter membrane.

And a filter membrane clamp automatic pushing device 3 is arranged on the frame 1 on the other side of the membrane storage system 2, and the filter membrane clamp automatic pushing device 3 is used for sequentially pushing the filter membrane clamps in the membrane storage system 2 step by step into the sampling device 4 and the shearing device 6 and finally pushing the waste membrane clamp bin.

The controlled ends of the filter membrane clamp automatic pushing device 3, the sampling device 4, the shearing device 6 and the reaction device 5 are respectively connected with the output end of the controller.

Automatic pusher 3, membrane storage system 2, sampling device 4, shearing mechanism 6 of filter membrane clamp set gradually on frame medium plate 1b, and the top of membrane storage system 2 bulges frame roof 1 a. The reaction device 5 is arranged on the frame bottom plate 1 c.

Still be provided with useless filter membrane on the frame 1 that is located shearing mechanism 6 one side and press from both sides collection bin 10 for to shearing back abandonment filter membrane clamp collect, filter membrane clamp automatic pushing equipment 3 can be with shearing back abandonment filter membrane clamp push into useless filter membrane clamp in collecting bin 10. The side wall of the waste filter membrane clamp collecting bin 10 is provided with a collecting opening, and the direction of the collecting opening is the same as the pushing direction of the automatic filter membrane clamp pushing equipment.

The utility model provides a filter membrane presss from both sides 11, it is shown in combination figure 27, including the sealed pad 112 of membrane holder 114, membrane holder lid 111, filter membrane 113 and silica gel, the sealed pad 112 of silica gel includes that the sealed pad of silica gel seals up and lower silica gel seals up, and membrane holder 114, lower silica gel seal pad, filter membrane 113, last silica gel seal up and membrane holder lid 111 set gradually from supreme down.

The film holder cover 111 has a first through hole 1111. The membrane holder cover 111 is inserted and clamped in the membrane holder seat 114.

The filter membrane 113 is hermetically sandwiched between the membrane holder 114 and the membrane holder cover 111, and can adsorb suspended particles in the ambient air.

The top end surface of the membrane holder seat 114 is provided with a positioning groove 1142, and the positioning groove 1142 is used for positioning the filter membrane 113 and the membrane holder cover 111.

The film holder 114 is provided with a second through hole 1141 directly below the first through hole 1111.

A silicone gasket 112 is bonded to the inside of the positioning groove 1142 of the membrane holder 114 and the bottom end surface of the membrane holder cover 111, and a gasket through hole 1121 located right below the first through hole 1111 is formed in the silicone gasket 112. The utility model discloses in two silica gel sealing gaskets that set up, can play sealed effect to can strengthen the gas tightness that the filter membrane pressed from both sides, guarantee that all inspiratory gas passes through the filter membrane and filters and can not reveal from the gap between membrane holder and the membrane clamp lid, and then guarantee the precision of follow-up sampling.

A plurality of limiting clamping edges 1143 pointing to the inner side of the positioning groove 1142 are arranged at the junction of the top end surface of the film holder 114 and the inner side wall of the positioning groove 1142, a film holder positioning groove is formed between each limiting clamping edge 1143 and the inner side wall of the positioning groove 1142, a plurality of protrusions 1112 matched with the film holder positioning grooves are arranged on the side wall of the film holder 111, and the bottom end surface of each limiting clamping edge 1143 is in close contact with the top end surface of each protrusion 1112.

The membrane holder 114, the filter membrane 113, the membrane holder cover 111, the silica gel sealing gasket 112 and the positioning groove 1142 are respectively rectangular, and the first through hole 1111, the second through hole 1141 and the sealing gasket through hole 1121 are respectively circular. And first through-hole 1111, second through-hole 1141 and sealed pad through-hole 1121 set up with one heart, can guarantee after the sampling is accomplished, can carry out the shearing operation of filter membrane.

The top end surface of the film clamping cover 111 is further provided with a tapered hole 1113 communicated with the first through hole 1111, and the tapered hole 1113 expands outwards from bottom to top.

The membrane storage system 2, as shown in fig. 9 to 11, includes a membrane storage chamber positioning frame 21 and a membrane storage chamber 22. The membrane storage bin 22 is fixedly arranged at the top end of the membrane storage bin positioning frame body 21 and used for storing the filter membrane clamps. The interior of the membrane storage bin 22 is in a hollow cavity shape, and the inner cavity of the membrane storage bin 22 is matched with the filter membrane clamp, so that the filter membrane clamp can be placed into the interior of the membrane storage bin 22 for storage.

The membrane storage chamber 22 of the utility model is a rectangular box body, and can be set into other shapes, and the specific shape is adjusted according to the shape of the membrane clamp.

Store up the lateral wall opening in membrane storehouse 22 to be provided with the removable curb plate 226 that can open at the opening part, when carrying out the filter membrane and pressing from both sides and put into, can upwards take out removable curb plate 226, press from both sides the filter membrane and put into in storing up membrane storehouse 22. Specifically, store up the lateral wall opening part in membrane storehouse 22 and be provided with the slide, can dismantle and be provided with the slide rail with slide looks adaptation on the curb plate 226, and then make can dismantle curb plate 226 and carry out the pull in storing up membrane storehouse 22.

Store up and form filter membrane clamp discharge gap 225 between membrane storehouse 22 and the storage membrane storehouse location framework 21, filter membrane clamp discharge gap 225 runs through the setting around.

Store up membrane storehouse 22 and store up membrane storehouse 222 including the first membrane storehouse 221 and the second that set up side by side, first membrane storehouse 221 and the second store up membrane storehouse 222 and set up on storing up membrane storehouse locating rack 223, store up the bottom mounting of membrane storehouse locating rack 223 and set up on storing up membrane storehouse locating frame 21.

A plurality of top positioning grooves a211 are formed in the top end surface of the film storage bin positioning frame body 21, a plurality of positioning protrusions 224 are arranged at the bottom end of the film storage bin positioning frame 223, and the positioning protrusions 224 are matched with the top positioning grooves a211 and partially expose out of the top end surface of the film storage bin positioning frame body 21. The film storage bin positioning frame body 21 and the film storage bin positioning frame 223 are fixed through screws.

Specifically, the filter membrane clamp discharging gap 225 is defined by the bottom wall of the membrane storage bin positioning frame 223, the side wall of the positioning protrusion 224 and the top wall of the membrane storage bin positioning frame 21.

The utility model discloses the thickness that the filter membrane pressed from both sides is the same with the vertical aperture that the filter membrane pressed from both sides discharge gap 225, when guaranteeing that the filter membrane presss from both sides can effectively be released, can guarantee again that the upper and lower both ends that the filter membrane pressed from both sides are in sealed state, not with external atmosphere direct contact.

The utility model discloses well top constant head tank a211 is provided with threely, and the protruding 224 correspondence in location is provided with threely, and the filter membrane presss from both sides discharge gap 225 and is divided into two by the protruding 224 in three location to every filter membrane presss from both sides discharge gap 225 and the storage membrane storehouse discharge gate of top corresponding.

The membrane storage bin positioning frame body 21 is arranged on the filter membrane clamp automatic pushing mechanism 3, and the filter membrane clamp automatic pushing mechanism 3 is used for pushing out the filter membrane clamp in the filter membrane clamp discharging gap 225.

The automatic filter holder pushing apparatus 3, as shown in FIGS. 5 to 11, includes a horizontal support 31 positioned on the fluoride automatic analyzer and a movable frame 32 disposed above the horizontal support 31.

The film storage bin 22 is positioned on the movable frame 32.

The rear end of the movable frame 32 is configured as a film storage bin positioning frame 321 for positioning the film storage bin 22, a bottom groove 323 is formed at the bottom end of the film storage bin positioning frame 321, and a top sliding groove 322 and a top positioning groove b324 are formed on the top end surface of the film storage bin positioning frame 321. Four top sliding grooves 322 are formed, and three top positioning grooves b324 are formed.

A push arm 33 is arranged in the movable frame body 32 through a push arm driving mechanism 34, and the push arm 33 corresponds to the filter membrane clamp discharging gap 225 and is used for pushing the filter membrane clamp. The controlled end of the push arm drive mechanism 34 is connected to the output end of the controller.

The push arm 33 is a rectangular plate-shaped push arm and is in a sheet shape, and the thickness of the push arm 33 is smaller than the vertical opening degree of the filter membrane clamp discharge gap 225, so that the push arm 33 can push the filter membrane clamp in the filter membrane clamp discharge gap 225. Simultaneously, the thickness that the filter membrane pressed from both sides is the same with the vertical aperture of filter membrane clamp discharge gap 225, when guaranteeing that the filter membrane presss from both sides can effectively be released, can guarantee again that the upper and lower both ends of filter membrane clamp are in sealed state, do not contact with external atmosphere.

The push arm 33 comprises a first push arm 331 corresponding to the position of the first film storage bin 221 and a second push arm 332 corresponding to the position of the second film storage bin 222, and the push arm driving mechanism 34 comprises a first push arm driving mechanism for driving the first push arm 331 to act and a second push arm driving mechanism which has the same structure as the first push arm driving mechanism and is used for driving the second push arm 332 to act.

The filter film clamp discharge gap 225 can be divided into a first filter film clamp discharge gap corresponding to the position of the first push arm 331 and a second filter film clamp discharge gap corresponding to the position of the second push arm 332.

The push arm driving mechanism 34 includes a first lead screw 341, a nut, and a driving mechanism. The first lead screw 341 is rotatably disposed on the front and rear side walls of the movable frame 32, and the first lead screw 341 passes through the top chute 322. The nut is fitted with the first lead screw 341, and the tip is fixed to the push arm 33. The driving mechanism is used for driving the first lead screw 341 to rotate, and the controlled end of the driving mechanism is connected to the output end of the controller.

The driving mechanism includes a driven gear 343, a driving gear 342, and a motor. The driven gear 343 is connected to one end of the first lead screw 341 extending out of the movable frame 32, and the driving gear 342 is rotatably provided on the movable frame 32 and engaged with the driven gear 343.

The motor is connected with the driving gear 342 through a connecting shaft and used for driving the driving gear 342 to rotate, and the controlled end of the motor is connected with the output end of the controller.

Guide rods 344 are further fixedly arranged on the front side wall and the rear side wall of the movable frame body 32, and the guide rods 344 movably penetrate through the screw nut and are used for guiding the screw nut when the screw nut moves.

When a plurality of sampling stations are arranged in the sampling equipment, in order to enable the device to push the filter membrane clamp into different sampling stations, a transverse moving mechanism 35 is arranged between the horizontal support table 31 and the movable frame body 32, the transverse moving mechanism 35 is used for driving the movable frame body 32, the membrane storage bin 22 and the push arm 33 to move left and right so as to switch the pushing stations, and the controlled end of the transverse moving mechanism 35 is connected to the output end of the controller.

The lateral moving mechanism 35 includes a slide a351 transversely provided on the horizontal support table 31, and the bottom end of the movable frame 32 is slidably fitted on the slide a 351. A pair of vertical positioning plates 352 which are arranged in the same direction as the bottom end groove 323 are fixedly arranged on the horizontal support table 31, one vertical positioning plate 352 is arranged below the bottom end groove 323, a second screw 353 is rotatably connected between the two vertical positioning plates 352, a movable screw 354 fixed with the film storage bin positioning frame body 321 is arranged on the second screw 353 in a matched mode, one end, extending out of the vertical positioning plate 352, of the second screw 353 is connected with a driving motor a355, and the controlled end of the driving motor a355 is connected to the output end of the controller.

The horizontal support platform 31 on one side of the film storage bin positioning frame body 321 is further provided with a limiting mechanism 36, the limiting mechanism 36 is used for limiting the movement position of the film storage bin positioning frame body 321, and the output end of the limiting mechanism 36 is connected to the input end of the controller.

The limit mechanism 36 includes a limit switch 361 and a vertical contact plate 362. The limit switch 361 is fixedly arranged on the top end surface of the horizontal support platform 31. The vertical contact plate 362 is fixedly arranged on the side wall of the film storage bin positioning frame body 321, and corresponds to the position of the limit switch 361, and the output end of the limit switch 361 is connected to the input end of the controller.

In order to better control the pushing position of the pushing arm 33, guarantee that the device can control the pushing arm 33 to stop pushing when the filter membrane clamp in the membrane storage chamber 22 is pushed out, the utility model discloses be provided with the position detection mechanism 37 respectively at the lateral wall both ends of portable framework 32, two position detection mechanisms 37 are used for detecting the pushing position of the first pushing arm 331 and the second pushing arm 332 respectively.

The position detection mechanism 37 includes a position sensor holder 372 and a position sensor 371 provided on the position sensor holder 372. The height position of the position sensor 371 is flush with the height position of the push arm, and the position sensor can sense the position of the push arm and feed back a position signal of the push arm to the controller. When the push arm moves backwards to a sensing area separated from the position sensor 371, namely the filter membrane clamp in the membrane storage bin 22 is just pushed out by the backward moving position of the push arm at the moment, the position sensor 371 cannot sense the position of the push arm at the moment, the position signal of the push arm is not fed back to the controller any more, and after the controller cannot receive the position signal of the push arm, the push arm driving mechanism 34 is controlled to stop operating, so that the pushing position of the push arm is controlled.

In the initial position, the push arm 33 is located in the filter membrane clamp discharge gap 225 below the membrane storage 22 so as to maintain the tightness of the membrane storage.

The sampling apparatus 4, as shown in fig. 12 to 15, includes a sampling box 41, a movable clamping plate 44, a detection membrane card slot 441, a sealing driving mechanism 45, a sampling structure 42, a blank test structure 43, a sealing top plate 49, and a suction system 9.

The sampling box 41 is surrounded by a support frame, and the inside of the sampling box 41 is hollow.

A movable clamp 44 is provided in the sampling chamber 41, a seal top plate 49 is provided below the movable clamp 44 by a spring connection, and the seal top plate 49 is moved up and down by driving of a seal driving mechanism 45 provided in the sampling chamber 41. Detection membrane clamping grooves 441 are formed between the movable clamping plate 44 and the top end of the inner wall of the sampling box body 41 and between the movable clamping plate 44 and the sealing top plate 49 respectively, and the detection membrane clamping grooves 441 are used for containing filter membrane clamps.

The fixed a plurality of archs 442 that are provided with in top of portable splint 44, a plurality of recesses 411 with protruding 442 matched with are seted up respectively to the inner wall top of sampling box 41, and when sealed actuating mechanism 45 drive sealed roof 49 and portable splint 44 rebound, protruding 442 can enter into recess 411, and then makes to form two between the top of portable splint 44 and the inner wall top of sampling box 41 and carry out the sealed detection membrane draw-in groove that the centre gripping was carried out to the filter membrane clamp. Meanwhile, two detection membrane clamping grooves are formed between the movable clamping plate 44 and the sealing top plate 49.

The sampling device 4 can be simultaneously placed into four filter membrane clamps, two movable clamping plates 44 can be placed on the upper side, a blank test filter membrane clamp is arranged on the left side, and a sampling filter membrane clamp is arranged on the right side; two movable clamping plates 44 can be arranged below, a blank test filter membrane clamp is arranged on the left side, and a sampling filter membrane clamp is arranged on the right side. When the movable clamping plate 44 and the sealing top plate 49 are pulled downwards, the filter membrane clamps can be put in step by step, and when the movable clamping plate 44 and the sealing top plate 49 are pushed upwards, the four filter membrane clamps are simultaneously tightly pressed and sealed.

The sampling structure 42 and the blank test structure 43 are arranged side by side at the top end of the sampling box 41. The sampling structure 42 is used for ambient gas filtration sampling. The blank test configuration 43 is identical to the sampling configuration 42 and is used to perform a blank control test.

The number of the detection membrane clamping grooves 441 is four, and the detection membrane clamping grooves comprise two detection membrane clamping grooves a communicated with the sampling structure 42 and two detection membrane clamping grooves b communicated with the blank test structure 43. The filter membrane clamps placed in the upper detection membrane clamping groove b and the lower detection membrane clamping groove b on the left side are used as a whole blank, and the filter membrane clamps placed in the upper detection membrane clamping groove a and the lower detection membrane clamping groove a on the right side are used as actual samples.

The sampling structure 42 includes a sampling air inlet tube 421, and the sampling air inlet tube 421 is disposed on the top end of the sampling box 41 and is communicated with the detection membrane clamping groove a.

The blank test structure 43 comprises a blank test air inlet pipe 431, and the blank test air inlet pipe 431 is arranged at the top end of the sampling box body 41 and is communicated with the detection membrane clamping groove b.

The sampling structure 42 and the blank test structure 43 are respectively provided with a filter membrane support structure inside, that is, the filter membrane support structures are respectively arranged inside the sampling air inlet pipe 421 and the blank test air inlet pipe 431.

The filter membrane support structure comprises a filter membrane net pad and a spacing ring. The filter membrane gauze pad is provided with an upper layer and a lower layer and is a stainless steel supporting filter membrane gauze pad. The two layers of filter membrane net cushions are separated by a spacing ring.

The seal driving mechanism 45 includes a turn duct 453 and a lifting mechanism. The controlled end of the sealing driving mechanism 45 is connected to the output end of the controller, and the sealing driving mechanism 45 is used for driving the sealing top plate 49 and the movable clamping plate 44 to move up and down, so that the detection membrane clamping groove is opened and closed, and the filter membrane clamp can be conveniently replaced, taken and placed.

The top end of the sealing top plate 49 is fixedly provided with a plurality of second guide rollers 459 movably penetrating through the movable clamping plate 44, and a second spring 4510 sleeved on the outer side of the second guide rollers 459 is connected between the sealing top plate 49 and the movable clamping plate 44.

The diversion air channel 453 is fixedly arranged at the bottom end of the sealing top plate 49 and is positioned right below the sampling structure 42. Two through holes communicated with the detection membrane clamping groove a and the detection membrane clamping groove b are respectively formed in the sealing top plate 49, and the steering air channel 453 is located right below the detection membrane clamping groove a and communicated with the detection membrane clamping groove a.

The lifting mechanism is arranged below the steering air duct 453 and used for driving the steering air duct 453 and the sealing top plate 49 to lift, and the controlled end of the lifting mechanism is connected to the output end of the controller.

The elevating mechanism includes a lead screw a454, a nut a455, and a driving motor b 456. The screw rod a454 is rotatably arranged on the bottom wall of the sampling box body 41, the screw rod a454 is vertically arranged, and the top end of the screw rod a454 extends into the sampling box body 41. The nut a455 is disposed in the sampling case 41 and fitted with the lead screw a 454. The driving motor b456 is connected with one end of the screw rod a454 extending out of the sampling box body 41, and the controlled end of the driving motor b456 is connected with the output end of the controller.

The nut a455 is provided with a nut attachment plate a4511 by screw attachment. A first transverse plate 4531 is fixedly arranged at the bottom end of the side wall of the turning air duct 453, and a second transverse plate 4532 is fixedly arranged at the top end of the side wall of the turning air duct 453. The bottom end of the inner wall of the sampling box body 41 is detachably provided with a guide roller 457 which sequentially and movably penetrates through a nut connecting plate a4511 and a first transverse plate 4531, the bottom end of the guide roller 457 is arranged on the sampling box body 41 through bolt connection, the top end of the guide roller 457 extends between the first transverse plate 4531 and a second transverse plate 4532, and the top end of the guide roller is not connected with the second transverse plate 4532. A first spring 458 which is sleeved outside the guide roller 457 is fixedly arranged between the top end of the nut connecting plate a4511 and the bottom end of the first transverse plate 4531.

A plurality of vertically arranged moving guide rails 452 are detachably connected in the sampling box body 41, the sealing top plate 49 penetrates through the moving guide rails 452 and can slide up and down along the moving guide rails 452, and the arranged sealing top plate 49 enables the moving guide rails 452 to move up and down more stably without deflection.

The sampling structure 42 and the detection membrane clamping groove a are communicated with each other to form an air suction system 9, the air suction system 9 is used for sucking ambient air to achieve the purpose of sampling of the sampling structure, and the controlled end of the air suction system 9 is connected to the output end of the controller. The blank test structure 43 on the left side is not communicated with the air suction system 9, so that the purpose of blank test is achieved.

The air suction system 9 comprises a spring air duct 91 communicated with the turning air duct 453, an air suction pipeline 92 communicated with the spring air duct 91 and a sampling pump communicated with the air suction pipeline 92, wherein the controlled end of the sampling pump is connected to the output end of the controller. One end of the air draft pipeline 92 is provided with a connector 93, and the sampling pump is connected with the connector 93 through a connecting pipe.

The side of the air draft pipeline 92 is communicated with a flowmeter 47 used for counting the gas collection flow, and the output end of the flowmeter 47 is connected to the input end of the controller. The utility model provides a flowmeter 47 is mass flow meter.

A limiter a48 is fixedly arranged on the inner side wall of the sampling box body 41, the limiter a48 is used for limiting the moving position of the sealing top plate 49, and the output end of the limiter a48 is connected to the input end of the controller. The stopper a48 is a travel switch, when the sealing top plate 49 moves upwards and touches the stopper a48, the stopper a48 feeds back the position signal of the sealing top plate 49 to the controller, and the controller controls the sealing top plate 49 to stop moving upwards, so that a good limiting effect is achieved.

The utility model discloses gaseous state and the collection of granular state fluoride in the mainly suitable air, sampling flow can be less than under 20 kPa's load at the inlet end, can guarantee that the flow scope can set for gas collection flow wantonly between 10L/min ~ 60L/min. The sampling time can be set to any value between 1min and 99h, or the gas collection volume under the standard condition can be set to any value between 1m and 999m 3. Under the control setting conditions of the set flow and the set time, the flow change from the beginning of sampling to the end of sampling is less than +/-5 percent, and the regulation of HJ955-2018 is met.

When the utility model discloses sampling device 4 is carrying out the change that the filter membrane pressed from both sides or is getting when putting, through sealed actuating mechanism 45 pulling sealed roof 49 and portable splint 44 downwards, it has two gears to store up the membrane storehouse, a gear is aimed at the detection membrane draw-in groove a that is located between left portable splint 44 and the 41 inner wall tops of sampling box, a gear is aimed at the detection membrane draw-in groove b that is located between portable splint 44 and the sealed roof 49 on right side, the lateral shifting who deuterogamies the filter membrane and press from both sides automatic propelling movement equipment, can push any sampling station (total four stations) with the filter membrane clamp of storing up the membrane storehouse wantonly (totally two storage membrane storehouses) the inside, then upwards push through sealed actuating mechanism 45, until guaranteeing sealed. The aspiration system 9 is started and the flow meter 47 controls and records the flow.

The shearing apparatus 6, as shown in fig. 16 to 21, includes a shearing machine case 61, a film holding plate 65, a presser 63, a circular cutter 62, a die pushing plate 611, a driving mechanism 64, and a shredder mechanism 67.

The shear housing 61 is provided in a frame shape and has a hollow interior. The inside of the shearing machine case 61 is provided with a film containing plate 65, a presser 63, a circle cutting knife 62 and a template pushing plate 611.

Flourishing lamina membranacea 65 is used for pressing from both sides the filter membrane that pushes in and carries out the splendid attire, offers on flourishing lamina membranacea 65 with cut circular knife 62 looks adaptation, can make the circular small opening that the filter membrane after the cutting falls out. Flourishing diaphragm 65's top has been seted up the filter membrane and has been held the groove 651, and the filter membrane holds and runs through the setting around the groove 651 for press from both sides to carry out the splendid attire to the filter membrane, circular small opening is seted up on the diapire that the filter membrane held the groove 651.

The compressor 63 is arranged right above the membrane holding plate 65 and used for compressing the filter membrane clamp into the membrane holding plate 65. The presser 63 includes a bottom plate 631, and the bottom end of the bottom plate 631 is provided in a cylindrical shape for pressing the film clamp.

Two slide ways b634 are arranged on the left and right inner side walls of the shearing machine box 61, and two side walls of the bottom template 631, the middle template 621 and the top template 612 are sequentially arranged on the two slide ways b634 in a sliding fit manner. Connecting posts 635 are further connected between the bottom form 631, the middle form 621 and the top form 612. Return springs are provided between the bottom shutter 631 and the middle shutter 621, and between the middle shutter 621 and the top shutter 612, respectively.

The circle cutting knife 62 is arranged right above the membrane containing plate 65 and is cylindrical, and is arranged on the inner side of the sleeve of the compactor 63 and used for cutting the filter membrane clamp in the membrane containing plate 65. The circle cutting knife 62 is a circular cylindrical blade, and the circle cutting knife 62 is fixedly arranged at the lower part of the middle template 621. The circular cutting knife 62 can protrude from the bottom template 631, thereby enabling the filter membrane on the filter membrane clamp to be cut by the circular cutting knife 62 when the bottom template 631 clamps the filter membrane clamp.

The template 611 is located inside the circular cutting knife 62 and is disposed right above the membrane holding plate 65, and is used for pushing the filter membrane cut by the circular cutting knife 62 downward to the paper feeding mechanism 66 disposed right below the membrane holding plate 65. The stripper plate 611 comprises a guide cylinder and a transverse spring steel plate, the top end of the guide cylinder being fixedly arranged on the top plate 612.

The top ends of the presser 63, the circle cutting knife 62 and the template pushing 611 are driven to ascend and descend by a driving mechanism 64, and the controlled end of the driving mechanism 64 is connected to the output end of the controller. The driving mechanism 64 includes a motor 641, a screw rod 643 is connected to an output shaft end of the motor 641, a connecting plate 642 is fixedly disposed on the top die plate 612, the connecting plate 642, the top die plate 612 and the guiding cylinder are respectively fitted with the screw rod, and the circular cutting knife 62 and the presser 63 are driven to ascend and descend by the rotation of the screw rod of the motor 641.

The pressing device 63, the circle cutting knife 62 and the template pushing 611 are arranged in sequence from outside to inside, in the membrane cutting process, after the filter membrane clamp is pressed by the pressing device 63, the circle cutting knife 62 is used for cutting a circle, and then the template pushing 611 is used for pushing the cut membrane into the paper feeding mechanism 66.

Shredded paper mechanism 67 sets up in the below of flourishing diaphragm 65 for filter membrane after will cutting is smashed, shredded paper mechanism 67's bottom is provided with the discharge gate, and the discharge gate can be with smashing in filter membrane carries to reaction unit, and shredded paper mechanism 67's controlled end is connected in the output of controller.

The shredding mechanism 67 comprises two rows of shredding knives 671 arranged in a staggered mode and a shredding drive motor 672 connected between the two rows of shredding knives 671 through a drive assembly, the shredding drive motor 672 is used for driving the two rows of shredding knives 671 to move relatively, and a controlled end of the shredding drive motor 672 is connected to an output end of the controller. When the driving assembly drives the two rows of paper shredding knives 671 to move relatively, the paper shredding function is realized. The driving assembly may be driven in the form of a cam or a link, or in other forms, as long as the function of relative movement of the two rows of shredder blades 671 is achieved.

For example, the driving assembly can also be driven by a screw and a nut, namely, two shredding driving motors are arranged, an output shaft of each shredding driving motor is respectively connected with a screw, the two screws are respectively assembled and connected with a nut, and each nut is fixedly connected with a row of shredding knives. The driving directions of the two paper shredding driving motors are opposite, so that the two rows of paper shredding knives are driven to move relatively.

A paper feeding mechanism 66 is arranged right below the circular leak hole of the membrane containing plate 65, the paper feeding mechanism 66 is used for transmitting the cut filter membrane to the inside of the paper shredding mechanism 67, and the controlled end of the paper feeding mechanism 66 is connected to the output end of the controller.

The paper feeding mechanism 66 includes a paper feeding roller 661 and a paper feeding driving motor 662 connected to the paper feeding roller 661 for driving the paper feeding roller 661 to rotate, and a controlled end of the paper feeding driving motor 662 is connected to an output end of the controller. When the paper feeding driving motor 662 is operated, the paper feeding roller 661 can be driven to rotate, and the filter membrane falling onto the paper feeding roller 661 is conveyed to the inside of the paper shredding mechanism 67.

Paper discharging funnel 68 is also arranged at the bottom end of the discharging port of the paper shredding mechanism 67, and the paper discharging funnel 68 is used for conveying the crushed filter membrane to the inside of the reaction device. Go out paper funnel 68 and be the slope form setting, go out the inside cross section of paper funnel 68 and reduce from top to bottom in proper order.

The sheared filter membrane can generate static electricity during the shearing process, so that the sheared filter membrane is adsorbed on the cutter and inside the paper outlet funnel 68, and the subsequent extraction of fluoride is influenced. In order to prevent the generation of above-mentioned problem, the utility model discloses be provided with the static system 69 that destatics that is used for detaching static on the lateral wall of paper funnel 68, shredded paper mechanism 67 and the inside air supply system that is equipped with of paper funnel 68 discharge gate blow the static that the shredded paper process and the conveying process produced through destatic system 69, and the controlled end of air supply system and static remover is connected in the output of controller.

The bottom end of the shearing machine case 61 is arranged on a moving mechanism, the moving mechanism is used for driving the whole device to move left and right, and the controlled end of the moving mechanism is connected with the output end of the controller. The moving mechanism is a lead screw driving mechanism and comprises a lead screw rotatably arranged on the fluoride automatic analyzer and a moving driving motor connected and arranged at one end of the lead screw, the lead screw is assembled with the bottom end of the shearing case 61, the device can be driven to move left and right on the fluoride automatic analyzer integrally, and then the paper outlet funnel 68 and the measuring system 56 can move to align the reaction device.

Be provided with stopper 610 on the bottom lateral wall of shearing machine case 61, the input in the controller is connected to the output of stopper 610, and then can restrict the shift position of this device.

The reaction apparatus 5, as shown in fig. 22 to 26, includes a reaction tank 51, a reaction system 55, a liquid-receiving bag 53, a bottom valve 59, a bottom valve driving mechanism 54, a liquid-feeding tube holder 58, a measurement system 56, and a drainage system 57.

The reaction cabinet 51 is provided with a reaction system 55 which can add liquid through the liquid adding system 8 and extract fluoride in the filter membrane, a determination system 56 which can be inserted into the reaction system 55 to determine fluoride is also arranged above the reaction cabinet 51, the controlled end of the reaction system 55 is connected to the output end of the controller, and the determination system 56 is in interactive connection with the controller.

The reaction system 55 includes a reaction tank 52, a solution preparation tank 521, an electrode protection tank 524, an ultrasonic separation mechanism, and a thermostat 553.

A liquid receiving bag 53 for containing the discharged residual liquid is arranged below the reaction tank 52 and the liquid preparation tank 521. The top end of the liquid receiving bag 53 is fixedly arranged on the reactor case 51.

The side wall of the liquid receiving bag 53 is communicated with a drainage system 57 for discharging the liquid after reaction, and the controlled end of the drainage system 57 is connected to the output end of the controller. The drainage system 57 comprises a drainage pipe communicated with the side wall of the liquid receiving bag 53 and an electromagnetic valve arranged on the drainage pipe, and the controlled end of the electromagnetic valve is connected to the output end of the controller.

The bottom ends of the reaction tank 52, the liquid preparation tank 521 and the electrode protection tank 524 are provided with a bottom valve 59, and the bottom end of the bottom valve 59 is provided with a bottom valve driving mechanism 54 for driving the bottom valve 59 to ascend and descend so as to realize liquid drainage.

The bottom valve driving mechanism 54 includes a supporting plate 541 disposed at a bottom end of the liquid receiving bag 53, a guide post 542 disposed on the case 1 and slidably connected to the supporting plate 541, a nut connecting plate b543 connected to the supporting plate 541 by a spring 547, and a lifting mechanism for driving the nut connecting plate b543 to ascend and descend. The top end of the supporting plate 541 is integrally provided with a sealed cavity body 548, the sealed cavity body 548 is arranged in the liquid receiving bag 53, the top end of the sealed cavity body 548 is in contact with the bottom valve 59 to support the bottom valve 59, and when the sealed cavity body 548 moves downwards, the bottom valve 59 can be opened.

The lifting mechanism comprises a nut b545, a screw b544 matched with the nut b545 and a driving motor 546 connected with one end of the screw b544, the nut b545 is fixedly connected with a nut connecting plate b543, the bottom end of the screw b544 is rotatably arranged on the box body 1 through a bearing, and the controlled end of the driving motor 546 is connected with the output end of the controller.

The reaction tank 52 is disposed on the top end surface of the reactor case 51, and the reaction tank 52 includes a reaction tank a522 and a reaction tank b 523.

The solution preparation tank 521 can deliver the prepared reaction solution to the reaction tank 52.

The reaction tank 52 is provided with an ultrasonic separation mechanism for separating fluoride from the solution added with the filter membrane, and the controlled end of the ultrasonic separation mechanism is connected to the output end of the controller.

The ultrasonic wave separating mechanism comprises an ultrasonic wave oscillator 552 arranged on the outer side wall of the reaction tank and an electromagnetic stirrer 554 arranged in the reaction tank, and the controlled ends of the ultrasonic wave oscillator 552 and the electromagnetic stirrer 554 are respectively connected with the output end of the controller. An ultrasonic oscillator 552 and an electromagnetic stirrer 554 are positioned on the outer side wall of the reaction tank by a positioning chuck plate 555.

The ultrasonic oscillator 552 can transmit the generated ultrasonic waves into the reaction tank for fluoride separation. Meanwhile, the arranged electromagnetic stirrer 554 can stir the solution in the reaction tank, so that the solution in the reaction tank can be ensured to fully extract the fluoride on the filter membrane after sampling.

The electromagnetic stirrer 554 of the utility model comprises a driving shaft 5542, an electromagnetic stirring motor 5541, a magnetic block 5543 and a rotor 5544. The driving shaft 5542 and the magnetic block 5543 are arranged in the sealed cavity 548, the magnetic block 5543 is fixedly arranged at the top end of the driving shaft 5542, and the electromagnetic stirring motor 5541 is connected with the driving shaft 5542. The rotor 5544 is arranged in the reaction tank and the liquid preparation tank 521, and when the electromagnetic stirring motor 5541 drives the driving shaft 5542 and the magnetic block 5543 to rotate, the rotor 5544 can be driven to rotate, so that the solution in the reaction tank and the liquid preparation tank can be stirred.

The outer side wall of the reaction tank is further provided with a thermostat 553, and the controlled end of the thermostat 553 is connected to the output end of the controller. The thermostat 553 is used as a standard requirement to keep the solution in the reaction tank within plus and minus two degrees at the time of electrode detection.

The measurement system 56 includes a measurement electrode 561 and a measurement electrode driving mechanism for controlling the measurement electrode 561 to move in the space, an output end of the measurement electrode 561 is connected to an input end of the controller, and a controlled end of the measurement electrode driving mechanism is connected to an output end of the controller.

The reaction tank comprises a reaction tank a522 and a reaction tank b523, and the liquid preparation tank 521, the reaction tank a522, the reaction tank b523 and the electrode protection tank 524 are respectively arranged on the reaction case 51 and can be respectively communicated with the liquid receiving bag 53.

The utility model provides a system 563 weathers sets up on electrode protection jar 524, and the system 563 intercommunication that weathers has the system of blowing.

The liquid storage system 7 and the liquid adding system 8 are arranged above the reaction device 5, and liquid adding pipelines of the liquid adding system 8 are gathered on the liquid adding pipe bracket 58 to add liquid into the liquid preparation tank 521, the reaction tank a522 and the reaction tank b523 through the liquid adding pipe head 581. The controlled end of the liquid adding system 8 is connected with the output end of the controller.

The liquid adding pipe bracket 58 and the measuring system 56 are fixed on the shearing device 6 and can move up and down, the shearing device 6 can move transversely, and the liquid adding pipe head 581 and the measuring system 56 are driven to align with the liquid preparation tank 521, the reaction tank a522 and the reaction tank b523 for liquid adding, flushing and testing.

The charging system 8 comprises a first charging pump 81, a second charging pump 82, a third charging pump 83, a fourth charging pump 84, a fifth charging pump 85 and a sixth charging pump 86. The liquid storage system 7 includes a standard liquid storage tank 71, a buffer liquid storage tank 72, a hydrochloric acid storage tank 73, and a sodium hydroxide storage tank 74. The liquid inlet end of the first liquid adding pump 81 is communicated with the standard liquid storage tank 71 through a pipeline, the liquid inlet end of the second liquid adding pump 82 is communicated with the water supply pipeline through a pipeline, the liquid inlet end of the fourth liquid adding pump 84 is communicated with the buffer liquid storage tank 72 through a pipeline, the liquid inlet end of the fifth liquid adding pump 85 is communicated with the hydrochloric acid storage tank 73 through a pipeline, and the liquid inlet end of the sixth liquid adding pump 86 is communicated with the sodium hydroxide storage tank 74 through a pipeline. The liquid outlet end of the first liquid adding pump 81, the liquid outlet end of the second liquid adding pump 82, the liquid outlet end of the third liquid adding pump 83, the liquid outlet end of the fourth liquid adding pump 84, the liquid outlet end of the fifth liquid adding pump 85 and the liquid outlet end of the sixth liquid adding pump 86 are respectively communicated with a liquid adding pipe head 581 on the liquid adding pipe bracket 58 through pipelines.

The first liquid adding pump 81 pumps the stock standard solution in the standard solution stock tank 71 into the solution preparation tank 521, and the solution preparation tank 521 is the standard solution use tank. Water is added into the liquid preparation tank 521 through the second liquid adding pump 82 and diluted to the standard liquid use liquid with the specified concentration, a certain amount of the standard liquid use liquid is added into the reaction tank a522 through the use liquid taking pipe 582 by the third liquid adding pump 83, a certain amount of buffer liquid is added into the buffer liquid storage tank 72 by the fourth liquid adding pump 84, water is added into the second liquid adding pump 82 and diluted to the specified concentration, and a standard curve is drawn through multiple times of measurement on the standard liquid use liquids with different specified concentrations.

The cut filter paper from the paper outlet funnel 68 of the cutting device 6 falls into the reaction tank a522 or the reaction tank b523, the fifth hydraulic pump 85 pumps the hydrochloric acid in the hydrochloric acid storage tank 73, and a certain amount of hydrochloric acid is pumped into the reaction tank a522 or the reaction tank b523 through the liquid adding pipe joint 581. Meanwhile, the ultrasonic oscillator 552 starts the fluoride separation, and after the separation is completed, a certain amount of sodium hydroxide is pumped from the sodium hydroxide storage tank 74 by the sixth liquid adding pump 86 through the liquid adding pipe head 581, a certain amount of buffer liquid is pumped from the buffer liquid storage tank 72 by the fourth liquid adding pump 84, and the buffer liquid is diluted to a specified concentration by adding water through the second liquid adding pump 82.

After the electromagnetic stirrer 554 and the thermostat were started, measurement was performed by the test electrode 561, and data was read.

After the test electrode 561 is tested, it is inserted into the electrode protection can 524 and cleaned and dried by the drying system 563 before being used next time.

The utility model discloses an actual working process as follows.

S1, storing the filter membrane clip into the membrane storage system 2.

The detachable side plate 226 can be directly opened, the filter membrane clamps are sequentially stacked in the membrane storage chamber 22 from top to bottom, and after the filter membrane clamps are placed in the membrane storage chamber, the detachable side plate 226 is closed. The filter membrane clips are orderly arranged up and down in the membrane storage bin 22, and the filter membrane clip positioned at the bottommost end is stored in the filter membrane clip discharging gap 225.

S2, the automatic filter membrane clamp pushing device 3 pushes the filter membrane clamp in the membrane storage system 2 to any station in the sampling device 4.

The controller controls the motor to operate, and the motor drives the driving gear 342 to rotate, so as to drive the driven gear 343 and the first lead screw 341 to rotate, and further drive the nut and the pushing arm 33 fixed with the nut to move backwards. The push arm 33 pushes the filter membrane clamp in the membrane storage bin 22 out into the sampling device through the filter membrane clamp discharge gap 225. At this time, the push arm is disengaged from the sensing area of the position sensor 371, the position sensor 371 no longer feeds back the position signal of the push arm to the controller, and the controller controls the push arm driving mechanism 34 to stop operating.

After the placement is finished, the sampling equipment automatically seals and clamps the filter membrane clamp.

And S3, sampling and collecting the fluoride in the ambient air through the sampling device 4.

The start-up of controller control sampling pump, the sampling pump carries out the suction operation, the inside of device is inhaled from sampling intake pipe 421 to the air in the environment, filter membrane bearing structure in the sampling intake pipe 421 filters inspiratory air, the air after the filtration is through the filter membrane clamp of centre gripping in detecting membrane draw-in groove 441, fluoride in the filter membrane to the air in by the filter membrane clamp is absorbed, and then make the sampling pump bleed and adsorb on two upper and lower filter membranes with the sample in the air, air after the absorption enters into spring tuber pipe 91 department, then through flowmeter 47, flowmeter 47 makes statistics of the air flow and the volume that pass through, the record.

And simultaneously, the utility model discloses in the blank test structure 43 that sets up can get rid of in the environment air effectively and enter into sampling intake pipe 421 automatically and cause the possibility of influence to the experimental result, can guarantee the accuracy nature of experimental result effectively.

S4, the filter membrane clamp automatic pushing device 3 pushes the filter membrane clamp after sampling into the shearing device 6.

After the sampling device finishes sampling the filter membrane clamp, the controller controls the push arm driving mechanism 34 to continue operating, so that the push arm pushes the filter membrane clamp in the sampling device into the shearing device, and the filter membrane clamp is sheared. When the filter membrane clamp is pushed into the shearing device, the controller controls the push arm driving mechanism 34 to stop operating.

S5, the shearing device 6 cuts the filter membrane in the filter membrane clamp after sampling into a circle, and the filter membrane is crushed and sheared into a specified size.

S51, the filter membrane clamp automatically pushes the sampled filter membrane clamp into the filter membrane containing groove 651 of the membrane containing plate 65.

S52, the controller controls the driving mechanism 64 to drive the pressing device 63, the circle cutting knife 62 and the template pushing 611 to move downwards, so as to clamp and cut the filter membrane clamp. The controller controls the motor 641 to rotate, so as to drive the compactor 63, the circle cutting knife 62 and the template pushing 611 to move downwards, and a filter membrane clamping position is formed between the bottom template 631 of the compactor 63 and the filter membrane containing groove 651. At the same time, the circular cutter 62 cuts the filter membrane in the filter membrane holder. The pushing template 611 is continuously controlled to move downwards, and the cut filter membrane is pushed to the paper feeding roller 661 of the paper feeding mechanism 66 through the circular leak hole by the pushing template 611.

S53, the paper feeding driving motor 662 drives the paper feeding roller 661 to rotate, and the paper feeding roller 661 drives the cut filter membrane to be conveyed to the paper shredding mechanism 67 for shredding. The two rows of shredder blades 671 of the shredder mechanism 67 crush the filter membranes while moving relative to each other.

S54, the crushed filter membrane falls into the paper discharging funnel 68, and then falls into the reaction device from the paper discharging funnel 68 for extraction.

In step S54, the static eliminating system 69 is provided to eliminate the static electricity generated during the transportation of the pulverized filter membrane, so that the pulverized filter membrane can smoothly fall into the reaction apparatus, and the normal operation of fluoride extraction is ensured.

S6 and reaction apparatus 5 measure fluoride in the filter.

S61, preparing liquid. The controller controls the action of the liquid adding pump in each liquid adding system 8 to prepare the standard stock solution into the standard use solution in the liquid preparation tank. The standard use solution prepared in the solution preparation tank is transferred to the reaction tank a522 or the reaction tank b 523.

S62, extracting fluoride. The filter membrane adsorbed with fluoride falls into the reaction tank a522 or the reaction tank b523 after being sheared by the shearing device. Hydrochloric acid is added and the ultrasonic oscillator 552 is turned on to separate the fluoride on the filter membrane.

S63, fluoride determination. Thermostat 553 and electromagnetic stirrer 554 are activated. The measurement electrode 561 is controlled by the measurement electrode driving mechanism to move out of the electrode guard tank 524, the measurement electrode 561 is controlled to move to the position right above the reaction tank, and the measurement electrode 561 is controlled to move downward to move into the reaction tank, and the solution in the reaction tank is measured by the measurement electrode 561. The measurement electrode 561 feeds back the measurement result to the controller, and the controller analyzes the measurement result.

S7, the automatic filter membrane clamp pushing device 3 pushes the waste filter membrane clamps into the waste filter membrane clamp collecting bin 10 for collection.

Claims

1. Fluoride automatic determinator, its characterized in that: comprises a frame (1) and a controller for controlling the overall operation of the device; the frame (1) is sequentially provided with a membrane storage system (2) for storing the filter membrane clips, a sampling device (4) corresponding to the discharge hole of the membrane storage system (2) and used for sampling the filter membrane, a shearing device (6) which is opposite to the discharge hole of the sampling device (4) and used for shearing the sampled filter membrane, and a reaction device (5) which is positioned below the shearing device (6) and used for extracting and measuring fluoride in the sheared filter membrane, a frame (1) positioned at the other side of the membrane storage system (2) is provided with an automatic filter membrane clamp pushing device (3) which is used for sequentially pushing the filter membrane clamps in the membrane storage system (2) into the sampling device (4) and the shearing device (6) step by step, the controlled ends of the filter membrane clamp automatic pushing device (3), the sampling device (4), the shearing device (6) and the reaction device (5) are respectively connected with the output end of the controller; the rack is also provided with an air suction system (9) for assisting the sampling device (4) to suck the sampling gas and a liquid storage system (7) for storing a reagent for measurement of the reaction device (5); the liquid storage system (7) is communicated with the reaction device (5) through a liquid adding system.

2. The fluoride automatic analyzer of claim 1, wherein: the frame (1) on one side of the shearing device (6) is also provided with a waste filter membrane clamp collection bin (10) for collecting the sheared waste filter membrane clamp, and the filter membrane clamp automatic pushing equipment (3) can push the sheared waste filter membrane clamp into the waste filter membrane clamp collection bin (10).

3. The fluoride automatic analyzer of claim 1, wherein: the automatic filter membrane clamp pushing device (3) comprises a horizontal supporting table (31) positioned on the rack (1) and a movable frame (32) arranged above the horizontal supporting table (31), the membrane storage system (2) is positioned on the movable frame (32), and a filter membrane clamp discharging gap (225) penetrating through the front and the back is formed between the bottom end of the membrane storage system (2) and the top end of the movable frame (32); a push arm (33) corresponding to the filter membrane clamping discharge gap (225) is arranged in the movable frame body (32) through a push arm driving mechanism (34), and the controlled end of the push arm driving mechanism (34) is connected to the output end of the controller.

4. The fluoride automatic analyzer of claim 3, wherein: a transverse moving mechanism (35) for driving the movable frame body (32), the membrane storage system (2) and the push arm (33) to move left and right is arranged between the horizontal support platform (31) and the movable frame body (32), and the controlled end of the transverse moving mechanism (35) is connected to the output end of the controller.

5. The fluoride automatic analyzer of claim 1, wherein: the sampling device (4) comprises a sampling box body (41), a movable clamping plate (44) is arranged in the sampling box body (41), a sealing top plate (49) is arranged below the movable clamping plate (44) through spring connection, detection membrane clamping grooves (441) are respectively formed between the movable clamping plate (44) and the top end of the inner wall of the sampling box body (41) and between the movable clamping plate (44) and the sealing top plate (49), the sealing top plate (49) moves up and down through the driving of a sealing driving mechanism (45), and the sealing driving mechanism (45) is arranged in the sampling box body (41); the top of sampling box (41) is provided with side by side and is used for carrying on the environmental gas filtration sampling structure (42) and with sampling structure (42) the same blank test structure (43) that are used for carrying on the blank contrast test of structure, detects membrane draw-in groove (441) including the detection membrane draw-in groove a that is linked together with sampling structure (42) and the detection membrane draw-in groove b that is linked together with blank test structure (43).

6. The fluoride automatic analyzer of claim 1, wherein: the shearing device (6) comprises a shearing machine box (61), a membrane containing plate (65) is arranged in the shearing machine box (61), a pressing device (63) used for pressing a filter membrane clamp into the membrane containing plate (65), a circle cutting knife (62) located on the inner side of the pressing device (63) and used for shearing the filter membrane clamp in the membrane containing plate (65) and a template pushing plate (611) located on the inner side of the circle cutting knife (62) are sequentially arranged right above the membrane containing plate (65), the tops of the pressing device (63), the circle cutting knife (62) and the template pushing plate (611) are driven to lift through a driving mechanism (64), and the controlled end of the driving mechanism (64) is connected to the output end of a controller; the film containing plate (65) is provided with a circular leak hole matched with the circular cutting knife (62); the lower part of the membrane containing plate (65) is provided with a paper shredding mechanism (67) for shredding the cut filter membrane, the bottom end of the paper shredding mechanism (67) is provided with a discharge hole capable of conveying the shredded filter membrane into the reaction device, and the controlled end of the paper shredding mechanism (67) is connected to the output end of the controller.

7. The fluoride automatic analyzer of claim 6, wherein: a paper feeding mechanism (66) used for conveying the cut filter membrane to the interior of the paper shredding mechanism (67) is further arranged right below the circular leak hole of the membrane containing plate (65), and the controlled end of the paper feeding mechanism (66) is connected to the output end of the controller.

8. The fluoride automatic analyzer of claim 1, wherein: the reaction device (5) comprises a reaction cabinet (51), a reaction system (55) which can be used for adding liquid through a liquid adding system (8) and extracting fluoride in the filter membrane is arranged on the reaction cabinet (51), a determination system (56) which can be inserted into the reaction system (55) to determine fluoride is further arranged above the reaction cabinet (51), the controlled end of the reaction system (55) is connected to the output end of the controller, and the determination system (56) is in interactive connection with the controller.

9. The fluoride automatic analyzer of claim 8, wherein: the reaction system (55) comprises a reaction tank (52) arranged on the top end face of the reaction case (51) and a liquid preparation tank (521) capable of conveying prepared reaction liquid into the reaction tank (52), bottom valves (59) and a bottom valve driving mechanism (54) used for driving the bottom valves (59) to lift and fall so as to achieve liquid drainage or not are arranged at the bottom ends of the reaction tank (52) and the liquid preparation tank (521), and a liquid collecting bag (53) used for containing discharged residual liquid is arranged below the reaction tank (52) and the liquid preparation tank (521); the reaction tank (52) is provided with an ultrasonic separation mechanism for separating fluoride from the solution added with the filter membrane, and the controlled end of the ultrasonic separation mechanism is connected with the output end of the controller.

10. The fluoride automatic analyzer of claim 9, wherein: the ultrasonic separation mechanism comprises an ultrasonic oscillator (552) arranged on the outer side wall of the reaction tank (52) and an electromagnetic stirrer (554) arranged in the reaction tank (52), and the controlled ends of the ultrasonic oscillator (552) and the electromagnetic stirrer (554) are respectively connected with the output end of the controller;

the outer side wall of the reaction tank (52) is further provided with a thermostat (553), and the controlled end of the thermostat (553) is connected to the output end of the controller.