CN115228272A - A absorption scrubbing tower for lithium hexafluorophosphate tail gas - Google Patents

Abstract

The invention discloses an absorption washing tower for lithium hexafluorophosphate tail gas, which comprises a treatment tower, wherein the upper end and the lower end of the treatment tower are communicated through a circulating pipeline, a circulating pump is arranged on the circulating pipeline, an extrusion block which is matched and extruded with a rotating blade is extended out of the inner wall of the treatment tower in a sliding manner, a circuit which is connected with a power supply, an electromagnet, an electromagnetic valve and a trigger switch in series through a lead is also arranged in the treatment tower, an alkali powder groove and a liquid pushing groove are formed in the inner wall of the treatment tower, a push plate elastic connecting rod is fixedly connected between the electromagnet and a magnetic push plate, and a liquid receiving hopper communicated with the liquid pushing groove is arranged on the outer side of a partition plate in a sliding manner.

Description

A absorption scrubbing tower for lithium hexafluorophosphate tail gas

Technical Field

The invention relates to the technical field of tail gas treatment equipment, in particular to an absorption washing tower for lithium hexafluorophosphate tail gas.

Background

Lithium hexafluorophosphate is the most important component of the electrolyte composition and accounts for approximately 43% of the total electrolyte cost. In the fluorine chemical industry, although the comparable reduction of the traditional products is obvious, the demand of high-end products is increased and strong momentum is kept. In the production process of lithium hexafluorophosphate, a large amount of waste gas pollution is generated, and the waste gas pollution source mainly comes from HCL and HF acidic waste gases generated in a synthesis section and a lithium hexafluorophosphate crude product drying section and needs to be treated in a behavior period before being discharged. The existing tail gas absorption washing tower only usually adopts absorption liquid to wash tail gas in a spraying mode to achieve the purpose of adsorbing harmful ingredients, but the existing tail gas absorption washing tower has a simple structure, is low in adsorption efficiency of the harmful ingredients, cannot treat the tail gas thoroughly, and is difficult to reach the emission standard.

In the prior art, a tail gas absorption washing tower (classification number: B01D 53/02) for lithium hexafluorophosphate with the publication number of CN209155473U comprises a spray tower and a condensation tower, wherein a spray head is arranged at the upper part of the spray tower, a rotating shaft with fan blades is further installed in the spray tower, airflow branch guide discs are fixed at the upper end and the lower end in the condensation tower through bolts, an air guide pipe is installed between the airflow branch guide discs, one side of the bottom of the condensation tower is communicated with one end of a filtering and adsorbing pipe through an axial flow fan, the other end of the adsorbing and filtering pipe is welded and fixed with the bottom end of a tail gas discharge pipe, the disturbance of airflow in the spray tower is intensified through the stirring of the fan blades, the absorption efficiency of an absorption liquid is improved, the residual absorption liquid steam and harmful ingredients in the tail gas are condensed and recovered in the condensation tower, and finally the residual absorption liquid steam and harmful ingredients are adsorbed and treated by activated carbon and then discharged from a tail gas discharge pipe at high altitude, and the tail gas treatment efficiency is high.

However, the prior art still has more defects, such as: 1, the absorption liquid is sprayed out from top to bottom and is discharged out of the spray tower through a waste liquid outlet, so that a large amount of waste of the spray liquid is caused, and partial lithium hexafluorophosphate tail gas is brought in the process that the waste liquid is discharged out of the spray tower through the waste liquid outlet, so that the environment is polluted; 2, in order to better absorb the acid gas in the neutralized lithium hexafluorophosphate tail gas, alkaline substances are added into the absorption liquid to enable the absorption liquid to be in an alkaline state, but the absorption liquid in the alkaline state can corrode a conveying pipeline and a spray header in the conveying process, and the conveying pipeline and the spray header need to be replaced regularly.

Disclosure of Invention

The invention aims to provide an absorption washing tower for lithium hexafluorophosphate tail gas, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an absorption washing tower for lithium hexafluorophosphate tail gas comprises a treatment tower, wherein the upper end and the lower end of the treatment tower are respectively communicated with an exhaust pipe and an air supply pipe, a rotating shaft with a plurality of rotating blades is rotatably arranged in the treatment tower, the upper end and the lower end of the treatment tower are communicated through a circulating pipeline, a circulating pump is arranged on the circulating pipeline, an extrusion block slot in which an extrusion block is arranged in a sliding manner is formed in the inner wall of the treatment tower, the extrusion block slidingly extends out of the extrusion block slot and is extruded by matching with the rotating blades, and an extrusion block elastic connecting rod is fixedly connected between the extrusion block and the inner wall of the extrusion block slot;

the treatment tower is also internally provided with a circuit which is connected with a power supply, an electromagnet, an electromagnetic valve and a trigger switch in series through a lead, the trigger switch comprises a first electric connecting plate and a second electric connecting plate which are arranged at intervals, the first electric connecting plate is fixedly connected to the extrusion block, the extrusion block is connected with a switch slot in a slot manner, an electric connecting plate elastic connecting rod is fixedly connected between the second electric connecting plate and the inner wall of the switch slot, and the first electric connecting plate extends into the switch slot and is matched and connected with the second electric connecting plate;

the processing tower is characterized in that an alkali powder groove and a liquid pushing groove which are vertically arranged are formed in the inner wall of the processing tower, the liquid pushing groove extends to an opening in the inner wall of the processing tower, the upper end of the opening of the liquid pushing groove is communicated with the lower end of the alkali powder groove, an electromagnetic valve is arranged at the communication position of the alkali powder groove and the liquid pushing groove, a magnetic push plate is arranged in the liquid pushing groove in a sliding mode, an electromagnet is located at one end, away from the opening of the liquid pushing groove, of the magnetic push plate, an elastic push plate connecting rod is fixedly connected between the electromagnet and the magnetic push plate, the electromagnet is rotatably connected with a threaded rod extending to the opening of the liquid pushing groove, a plurality of stirring blades are fixedly connected to one end, close to the opening of the liquid pushing groove, of the threaded rod, and an inner threaded groove matched with the threaded rod is formed in the magnetic push plate;

a partition plate provided with a plurality of liquid spraying holes is fixedly arranged at the opening of the liquid pushing groove, a one-way valve is arranged at the lower part of the partition plate, a liquid receiving hopper is arranged on the outer side of the partition plate in a vertically sliding manner, the liquid receiving hopper is fixedly connected with a liquid receiving hopper push rod matched with the rotating blade, a sliding groove is formed in the inner wall of the treatment tower and is connected with a limiting groove, a liquid receiving hopper sliding rod which penetrates through the sliding groove in a sliding manner and extends into the limiting groove is fixedly connected with the liquid receiving hopper clamping plate, and one end of the liquid receiving hopper sliding rod, which extends into the limiting groove, is fixedly connected with a liquid receiving hopper clamping plate;

connect the liquid fill cardboard to keep away from the one end of connecing the liquid fill slide bar and slide and stretch out and have the fixture block, and the fixture block with connect fixedly connected with fixture block elastic connecting rod between liquid fill cardboard inner wall, spacing groove upper portion is connected with and supplies fixture block sliding insertion's push pedal groove, push pedal groove below is connected with the extrusion bull stick groove, and extrudees bull stick inslot rotation and be provided with the extrusion bull stick that stretches into the push pedal groove, and extrudees the bull stick and extrudes fixedly connected with bull stick elastic connecting rod between bull stick inslot wall, the extrusion bull stick inslot slides and is provided with the extrusion push rod that stretches into the push pedal groove, and extrudees the one end fixedly connected with fixture block push pedal that the push rod stretches into the push pedal groove, fixedly connected with elastic sleeve between fixture block push pedal and push pedal inslot wall.

Preferably, one end of the electromagnet, which is close to the magnetic push plate, is fixedly connected with an electromagnet connecting plate, the push plate elastic connecting rod is fixedly connected between the electromagnet connecting plate and the magnetic push plate, and the threaded rod is rotatably connected to the electromagnet connecting plate.

Preferably, the end face, close to the electromagnet, of the magnetic push plate is fixedly connected with a plurality of magnetic blocks which are uniformly arranged, and the magnetic blocks and the electromagnet are magnetically repelled.

Preferably, the circulating pipeline is communicated with a liquid discharge pipe, a liquid discharge valve is arranged in the liquid discharge pipe, and the liquid discharge end of the liquid discharge pipe is positioned outside the treatment tower.

Preferably, a plurality of spray headers are arranged at the upper part in the treatment tower, and the liquid outlet end of the circulating pipeline is communicated with the spray headers.

Preferably, the alkali powder groove is communicated with an external alkali powder conveying device through an alkali powder adding channel, and a powder inlet valve is arranged in the alkali powder adding channel.

Preferably, the inner wall of the treatment tower is fixedly connected with an elastic lantern ring, and the extrusion block penetrates through the elastic lantern ring in a sliding mode.

Preferably, the air feed end of the air feed pipe is fixedly extended into the treatment tower, and the height of the air feed end of the air feed pipe is higher than that of the communication position of the treatment tower and the liquid inlet end of the circulating pipeline.

Compared with the prior art, the invention has the beneficial effects that:

the device has the advantages that through the arrangement of the circulating pipeline and the circulating pump, absorption liquid falling to the bottom of the treatment tower enters the circulating pipeline through the liquid inlet end of the circulating pipeline and flows out of the liquid outlet end of the circulating pipeline again under the action of the circulating pump, the lithium hexafluorophosphate tail gas is treated by recycling the absorption liquid, the utilization efficiency of the absorption liquid is improved, the waste of the absorption liquid is avoided compared with a mode of directly discharging the absorption liquid, and meanwhile, the problem that part of the lithium hexafluorophosphate tail gas is brought out in the process of discharging the absorption liquid to pollute the environment is also avoided;

2, this device is through the extrusion piece, the electro-magnet, the cooperation setting of structures such as solenoid valve and magnetism push pedal, make neutral absorption liquid in the treating column present basicity with the alkali powder mixture, again with the acid gas of lithium hexafluorophosphate tail gas carry out neutralization, and make and present neutral absorption liquid after the neutralization reaction and get into the circulating line, can not lead to the fact the corruption to circulating line and shower head, compare in the degree of corrosion that directly uses basicity absorption liquid to reduce circulating line and shower tower, prolong the life of circulating line and shower head.

According to the absorption washing tower for the lithium hexafluorophosphate tail gas, disclosed by the invention, the absorption liquid is recycled through the circulating pipeline and the circulating pump, the utilization efficiency of the absorption liquid is improved, and the absorption liquid is alkaline in the treatment tower and neutral in the circulating pipeline through the matching arrangement of the electromagnet, the electromagnetic valve and the magnetic push plate, so that the corrosion degree of the absorption liquid on the circulating pipeline and the spray header is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the structure of area A in FIG. 1;

FIG. 3 is an enlarged view of the structure of region B in FIG. 2;

FIG. 4 is a schematic view of the sliding of the pressing blocks of the present invention driven by the rotating blades;

FIG. 5 is an enlarged view of the structure of the area C in FIG. 4;

FIG. 6 is an enlarged view of the structure of region D in FIG. 5;

FIG. 7 is a schematic view of the sliding of the push rod of the liquid receiving bucket pushed by the rotating blade according to the present invention;

FIG. 8 is an enlarged view of the structure of area E in FIG. 7;

FIG. 9 is a schematic view of the clamping and fixing of the liquid receiving bucket of the present invention;

fig. 10 is an enlarged view of the structure of region F in fig. 9.

In the figure: 1 processing tower, 101 extrusion block slot, 102 liquid pushing groove, 103 alkali powder groove, 104 sliding groove, 105 spacing groove, 106 plate pushing groove, 107 extrusion rotating rod groove, 108 alkali powder adding channel, 109 switch groove, 2 gas supply pipe, 3 gas exhaust pipe, 4 rotating shaft, 5 rotating blade, 6 circulating pipeline, 61 liquid discharge pipe, 7 circulating pump, 8 extrusion block, 9 extrusion block elastic connecting rod, 10 conducting wire, 11 power supply, 12 electromagnet, 13 electromagnetic valve, 14 first electricity connecting plate, 15 second electricity connecting plate, 16 electricity connecting plate elastic connecting rod, 17 plate elastic connecting rod, 18 magnetic push plate, 181 magnetic block, 19 threaded rod, 191 stirring blade, 20 liquid receiving bucket, 21 liquid receiving bucket push rod, 22 partition plate, 23 one-way valve, 24 liquid receiving bucket sliding rod, 25 liquid receiving bucket clamping plate, 26 clamping block, 27 elastic clamping block, 28 extrusion rotating rod, 29 rotating rod elastic connecting rod, 30 extrusion liquid discharge rod, 31 clamping block, 32 elastic sleeve, 33 electromagnet push plate, 34 connecting plate, 35 spray head, 36 powder feeding valve and 37 elastic liquid discharge sleeve ring.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution:

the first embodiment is as follows:

an absorption washing tower for lithium hexafluorophosphate tail gas comprises a treatment tower 1, wherein the upper end and the lower end of the treatment tower 1 are respectively communicated with an exhaust pipe 3 and an air supply pipe 2, the lithium hexafluorophosphate tail gas enters the treatment tower 1 through the air supply pipe 2 for treatment, the treated lithium hexafluorophosphate tail gas leaves the treatment tower 1 through the exhaust pipe 3, the upper end and the lower end of the treatment tower 1 are communicated through a circulation pipeline 6, the circulation pipeline 6 is provided with a circulation pump 7, the circulation pump 7 provides power for the bottom-up flow of absorption liquid, the liquid outlet end of the circulation pipeline 6 is positioned at the upper part of the treatment tower 1, the liquid inlet end of the circulation pipeline 6 is positioned at the lower part of the treatment tower 1, the absorption liquid enters the upper part of the treatment tower 1 through the liquid outlet end of the circulation pipeline 6, the absorption liquid flows from top to bottom in the treatment tower 1 after leaving the liquid outlet end of the circulation pipeline 6, the lithium hexafluorophosphate tail gas flows from the liquid inlet end of the treatment tower 1 to top, the absorption liquid flows out from the liquid outlet end of the circulation pipeline 6 again under the action of the circulation pump 7, the absorption liquid is utilized for recycling the absorption liquid, the problem that the absorption liquid is avoided, the waste of the absorption liquid, and the absorption liquid is avoided, the waste of the lithium hexafluorophosphate tail gas, and the absorption liquid is avoided, the waste of the absorption liquid in the absorption liquid, and the absorption liquid, the absorption liquid is avoided, and the pollution of the absorption liquid;

the upper part in the treatment tower 1 is provided with a plurality of spray headers 35, the liquid outlet end of the circulating pipeline 6 is communicated with the spray headers 35, absorption liquid is sprayed inside the treatment tower 1 through the spray headers 35, the mixed contact area of the absorption liquid and lithium hexafluorophosphate tail gas is increased, so that the absorption effect of the absorption liquid on harmful substances in the lithium hexafluorophosphate tail gas is improved, a rotating shaft 4 with a plurality of rotating blades 5 is rotatably arranged inside the treatment tower 1, the rotating blades 5 and the rotating shaft 4 are positioned between the liquid outlet end of the circulating pipeline 6 and the gas inlet end of the gas feed pipe 2, the rotating shaft 4 is driven to rotate through a driving motor, the rotating shaft 4 can also extend out of the treatment tower 1 and be manually driven to rotate, the rotating blades 5 are driven to rotate together by the rotating shaft 4, the rotating blades 5 rotate to intensify the disturbance of air flow inside the treatment tower 1 and flap the absorption liquid again, the absorption liquid can be adsorbed again after being splashed, and the absorption efficiency of the absorption liquid is improved;

example two:

in the second embodiment, the acidity and alkalinity of the absorption liquid are adjusted on the basis of the first embodiment, namely: an extrusion block slot 101 in which an extrusion block 8 is slidably arranged is formed in the inner wall of the left side of the processing tower 1, an elastic collar 37 is fixedly connected to the inner wall of the processing tower 1, the extrusion block 8 slides through the elastic collar 37, the elastic collar 37 has a liquid isolating effect, absorption liquid is prevented from entering a switch slot 109 through the extrusion block slot 101, and adverse effects are caused on the operation of a trigger switch, the extrusion block 8 slides to extend out of the extrusion block slot 101 and is matched with a rotating blade 5 for extrusion, an extrusion block elastic connecting rod 9 is fixedly connected between one end of the extrusion block 8 extending into the extrusion block slot 101 and the inner wall of the extrusion block slot 101, the extrusion block 8 extends out of the extrusion block slot 101 and extends into the processing tower 1 under the support of the extrusion block elastic connecting rod 9, a rotating shaft 4 drives the rotating blade 5 to rotate clockwise, the rotating blade 5 passes through the extrusion block 8, so that the extrusion block 8 slides leftwards, the extrusion block elastic connecting rod 9 is compressed, after the rotating blade 5 leaves the extrusion block 8, the extrusion block 8 reversely moves rightwards under the elastic action of the extrusion block elastic connecting rod 9, the elastic action of the extrusion block 8 is reset, the rotating blade 5, the end of the rotating blade 5 far away from the rotating shaft 4 is of an arc structure, one end of the extrusion block 8 extending out of the extrusion block 101, and the extrusion block is convenient for matching with the extrusion block 5, and the extrusion block of the extrusion block 5;

the processing tower 1 is also provided with a circuit which is connected with a power supply 11, an electromagnet 12, an electromagnetic valve 13 and a trigger switch in series through a lead 10, the trigger switch comprises a first electric connection plate 14 and a second electric connection plate 15 which are arranged at intervals on the right side and the left side, the first electric connection plate 14 is fixedly connected to the extrusion block 8, the extrusion block slot 101 is connected with a switch slot 109, an electric connection plate elastic connecting rod 16 is fixedly connected between the second electric connection plate 15 and the inner wall of the switch slot 109, the first electric connection plate 14 extends into the switch slot 109 and is matched and connected with the second electric connection plate 15, when the rotating blade 5 does not pass through the extrusion block 8, the first electric connection plate 14 is supported by the extrusion block 8 to be stable, the second electric connection plate 15 is supported by the electric connection plate elastic connecting rod 16 to be stable, a gap exists between the first electric connection plate 14 and the second electric connection plate 15, so that the trigger switch is disconnected, the extrusion block 8 drives the first electric connection plate 14 to slide and the second electric connection plate 15 to slide left when the rotating blade 5 passes through the extrusion block 8 and presses the extrusion block 8 to slide left, the extrusion block 14 and the second electric connection plate 14, the electromagnetic valve 14 and the second electric connection plate 15 continues to be connected with the electromagnet, the electromagnet 14, the electromagnetic valve 14 and the electromagnetic switch to be electrically connected to be connected to the electromagnetic valve, and the electromagnetic switch;

an alkali powder groove 103 and a liquid pushing groove 102 which are vertically arranged are formed in the inner wall of the treatment tower 1, the alkali powder groove 103 is communicated with an external alkali powder conveying device through an alkali powder adding passage 108, a powder feeding valve 36 is arranged in the alkali powder adding passage 108, the external alkali powder conveying device conveys alkali powder into the alkali powder groove 103 through the alkali powder adding passage 108, the powder feeding valve 36 is opened in the alkali powder conveying process to the alkali powder groove 103, the powder feeding valve 36 is closed after the alkali powder conveying to the alkali powder groove 103 is finished, the liquid pushing groove 102 extends to an opening in the left inner wall of the treatment tower 1, the upper end of the opening of the liquid pushing groove 102 is communicated with the lower end of the alkali powder groove 103, the electromagnetic valve 13 is arranged at the communication position between the alkali powder groove 103 and the liquid pushing groove 102, when the trigger switch is switched off, the electromagnetic valve 13 is closed, so that the alkali powder in the alkali powder groove 103 cannot enter the liquid pushing groove 102, and when the trigger switch is switched off, the electromagnetic valve 13 is opened, so that the alkali powder in the alkali powder groove 103 enters the liquid pushing groove 102;

a partition plate 22 provided with a plurality of liquid spraying holes is fixedly arranged at the opening of the liquid pushing groove 102, a plurality of liquid spraying holes are arranged to facilitate alkaline absorption liquid to be uniformly sprayed into the interior of the treatment tower 1, a one-way valve 23 is arranged at the lower part of the partition plate 22, a liquid receiving hopper 20 is arranged at the outer side of the partition plate 22 in a vertically sliding manner, the liquid receiving hopper 20 is positioned above the extrusion block 8, the opening at the upper end of the liquid receiving hopper 20 is convenient for receiving the absorption liquid flowing out from the liquid outlet end of the circulating pipeline 6, the absorption liquid selects neutral absorption liquid, the absorption liquid received by the liquid receiving hopper 20 enters the liquid pushing groove 102 through the one-way valve 23, the absorption liquid in the liquid pushing groove 102 cannot enter the liquid receiving hopper 20 through the one-way valve 23, a magnetic push plate 18 which is magnetically repellent to the electromagnet 12 is arranged in the liquid pushing groove 102 in a sliding manner, the electromagnet 12 is positioned at one end of the magnetic push plate 18 far away from the opening of the liquid pushing groove 102, a push plate elastic connecting rod 17 is fixedly connected between the electromagnet 12 and the magnetic push plate 18, the electromagnet 18 is rotatably connected with a threaded rod 19 which extends to the opening of the liquid pushing groove 102, one end of the threaded rod 19 which is fixedly connected with a plurality of stirring blades 191, and is positioned at the position which is communicated with the lower end of the liquid pushing groove 103 which is positioned below the liquid pushing groove 102, and is provided with the magnetic threaded rod 19 which is communicated with the liquid pushing groove 18;

after the trigger switch is closed, the electromagnetic valve 13 is opened to enable alkali powder to enter the liquid pushing groove 102 and be mixed with absorption liquid to obtain alkaline absorption liquid, the alkaline absorption liquid is sprayed into the treatment tower 1 through the magnetic push plate 18 to be neutralized with acid gas of lithium hexafluorophosphate tail gas, the absorption liquid after neutralization reaction is neutral and enters the circulating pipeline 6 through the liquid inlet end of the circulating pipeline 6, the circulating pipeline 6 and the spray header 35 cannot be corroded, compared with the case that the alkaline absorption liquid is directly used, the corrosion degree of the circulating pipeline 6 and the spray header 35 is reduced, the service lives of the circulating pipeline 6 and the spray header 35 are prolonged, the electromagnet 12 is electrified to repel the magnetic push plate 18, the magnetic push plate 18 slides towards the direction close to the opening of the liquid pushing groove 102, the push plate elastic connecting rod 17 is lengthened, the magnetic push plate 18 slides to spray the alkaline absorption liquid in the liquid pushing groove 102 into the treatment tower 1 through the liquid spraying hole, so that the inside of the treatment tower 1 presents an alkaline environment, the alkaline absorption liquid and the acid gas of lithium hexafluorophosphate tail gas are convenient to neutralize, the magnetic push plate 18 slides through the threaded rod 19 to drive the stirring blades 19 to rotate, and the stirring blades 19 to stir the alkali powder uniformly, and the alkali powder to be mixed and be absorbed in the mixed and absorbed in the treatment tower 1;

the liquid receiving bucket 20 is fixedly connected with a liquid receiving bucket push rod 21 matched with the rotating blade 5, the liquid receiving bucket push rod 21 is vertically and downwards arranged, the inner wall of the treatment tower 1 is provided with a vertical sliding groove 104, the sliding groove 104 is connected with a vertical limiting groove 105, the liquid receiving bucket 20 is fixedly connected with a liquid receiving bucket sliding rod 24 which penetrates through the sliding groove 104 in a sliding manner and extends into the limiting groove 105, one end of the liquid receiving bucket sliding rod 24 extending into the limiting groove 105 is fixedly connected with a liquid receiving bucket clamping plate 25, one end of the liquid receiving bucket clamping plate 25 far away from the liquid receiving bucket sliding rod 24 is provided with a clamping block 26 in a sliding manner, a clamping block elastic connecting rod 27 is fixedly connected between the clamping block 26 and the inner wall of the liquid receiving bucket clamping plate 25, the clamping block 26 is extruded on the inner wall of the limiting groove 105, and the clamping block elastic connecting rod 27 is in a compressed state, the upper part of the limiting groove 105 is connected with a push plate groove 106 for the fixture block 26 to be inserted in a sliding manner, the liquid receiving bucket 20 slides downwards to the bottom end of the sliding groove 104 under the action of gravity, the rotating blade 5 rotates clockwise and pushes the liquid receiving bucket push rod 21 to slide upwards, the liquid receiving bucket push rod 21 drives the liquid receiving bucket 20 to slide upwards, the liquid receiving bucket 20 drives the liquid receiving bucket clamping plate 25 to slide upwards together through the liquid receiving bucket sliding rod 24 until the liquid receiving bucket 20 rises to the left side of the partition plate 22, the fixture block 26 is aligned with the push plate groove 16, the fixture block 26 extends into the push plate groove 106 under the pushing of the fixture block elastic connecting rod 27 to realize clamping and fixing, so that the liquid receiving bucket 20 is clamped and fixed to the left side of the partition plate 22, the liquid receiving bucket 20 receives absorption liquid and sends the absorption liquid into the liquid pushing groove 102, and the rotating blade 5 continues to rotate and leaves the liquid receiving bucket push rod 21;

an extrusion rotating rod groove 107 is connected below the liquid pushing groove 102, an extrusion rotating rod 28 extending into the liquid pushing groove 102 is rotatably arranged in the extrusion rotating rod groove 107, when the electromagnet 12 is not electrified, the magnetic push plate 18 is kept stable under the support of the push plate elastic connecting rod 17, the magnetic push plate 18 is positioned at the left side of the extrusion rotating rod groove 107, the rotating rod elastic connecting rod 29 is fixedly connected between the extrusion rotating rod 28 and the inner wall of the extrusion rotating rod groove 107, the extrusion push rod 30 extending into the push plate groove 106 is arranged in the extrusion rotating rod groove 107 in a sliding manner, and one end of the extrusion push rod 30 extending into the push plate groove 106 is fixedly connected with a fixture block push plate 31, an elastic sleeve 32 is fixedly connected between the fixture block push plate 31 and the inner wall of the push plate groove 106, when the trigger switch is closed, the magnetic push plate 18 slides to the right and pushes the pressing rotating rod 28, so that the pressing rotary lever 28 is deflected to the right, the pressing rotary lever 28 is deflected to the right and presses the pressing push rod 30 to the right, so that the extrusion push rod 30 drives the fixture block push plate 31 to slide rightwards, the fixture block push plate 31 slides rightwards and pushes the fixture block 26, so that the clamping block 26 leaves the pushing plate groove 106, the liquid receiving hopper 20 is separated from the clamping fixation and slides downwards under the action of gravity, the liquid receiving hopper 20 leaves the partition plate 22 to prevent the liquid receiving hopper 20 from blocking the alkaline absorption liquid sprayed out of the pushing liquid groove 102, the magnetic pushing plate 18 continuously slides rightwards and presses the extrusion rotating rod 28 into the extrusion rotating rod groove 107, the magnetic push plate 18 continuously slides rightwards and leaves the extrusion rotating rod 28, the extrusion rotating rod 28 reversely deflects and resets under the action of the rotating rod elastic connecting rod 29, the extrusion rotating rod 28 does not press the extrusion push rod 30 any more, the extrusion push rod 30 and the fixture block push plate 31 reversely move leftwards under the elastic action of the elastic sleeve 32 and reset, the fixture block push plate 31 is prevented from continuously blocking the push plate groove 106, and the fixture block 26 cannot extend into the push plate groove 106 again to realize clamping fixation.

Example three:

in the third embodiment, the structures of the electromagnet 2 and the magnetic push plate 18 are optimized on the basis of the second embodiment, that is: electromagnet 2 is close to the one end fixedly connected with electro-magnet connecting plate 33 of magnetism push pedal, and push pedal elastic connecting rod 17 fixed connection is between electro-magnet connecting plate 33 and magnetism push pedal 18, and 19 fixedly connected with of threaded rod rotates the carousel head that inserts in electro-magnet connecting plate 33, realize the rotation between threaded rod 19 and electro-magnet connecting plate 33 and connect, magnetism push pedal 18 is close to a plurality of magnetic block 181 that evenly arrange of fixedly connected with on the terminal surface of electro-magnet 12, and magnetic block 181 repels mutually with electro-magnet 12 magnetism, through evenly setting up a plurality of magnetic block 181 and 2 magnetic coordination of electro-magnet, improve the stress intensity and the atress homogeneity of magnetism push pedal 18, make the slip process of magnetism push pedal 18 more stable.

Example four:

the fourth embodiment optimizes the structure of the circulation pipeline 6 on the basis of the first embodiment, namely: circulating line 6 intercommunication has fluid-discharge tube 61, and be provided with flowing back valve 34 in the fluid-discharge tube 61, and fluid-discharge tube 61 goes out the liquid end and is located the 1 outside of treating tower, the absorption liquid is discharged through fluid-discharge tube 61 after circulating for a certain time in circulating line 6, 2 fixed stretches into inside treating tower 1 of air feed pipe, and 2 air feed ends of air feed pipe highly be higher than treating tower 1 and 6 feed ends intercommunication departments height of circulating line for avoid treating tower 1 and 6 feed ends intercommunication departments of circulating line after lithium hexafluorophosphate tail gas gets into treating tower 1, reduce the quantity of gas that lithium hexafluorophosphate tail gas leaves fluid-discharge tube 61 along with the absorption liquid.

The working principle is as follows: absorption liquid enters a circulating pipeline 6 through a liquid inlet end of the circulating pipeline 6 and flows out from a liquid outlet end of the circulating pipeline 6 under the action of a circulating pump 7, the absorption liquid received by a liquid receiving hopper 20 enters a liquid pushing groove 102 through a one-way valve 23, a rotating shaft 4 drives a rotating blade 5 to rotate clockwise, the rotating blade 5 rotates through a squeezing block 8, the squeezing block 8 slides leftwards to ensure that a first electric plate 14 is electrically connected with a second electric plate 15, a trigger switch is closed, an electromagnetic valve 13 is opened, alkali powder enters the liquid pushing groove 102 and is mixed with the absorption liquid to obtain alkaline absorption liquid, an electromagnet 12 is electrified and repels a magnetic push plate 18, the magnetic push plate 18 slides rightwards, and the alkaline absorption liquid in the liquid pushing groove 102 is sprayed into the treatment tower 1 through a liquid spraying hole;

the magnetic push plate 18 slides rightwards and pushes the extrusion rotating rod 28 to enable the extrusion rotating rod 28 to deflect rightwards, the extrusion rotating rod 28 deflects rightwards and pushes the extrusion push rod 30, the extrusion push rod 30 drives the fixture block push plate 31 to slide rightwards, the fixture block push plate 31 slides rightwards and pushes the fixture block 26, the fixture block 26 leaves the push plate groove 106, the liquid receiving bucket 20 is separated from clamping and fixed and slides downwards under the action of gravity, the liquid receiving bucket 20 leaves the partition plate 22, the magnetic push plate 18 continues to slide and leaves the extrusion rotating rod 28, the extrusion rotating rod 28 reversely deflects and resets under the action of the rotating rod elastic connecting rod 29, the extrusion rotating rod 28 does not press the extrusion push rod 30 any more, and the fixture block push plate 31 reversely moves leftwards and resets under the elastic action of the elastic sleeve 32;

the rotating blade 5 continues to rotate and leave the extrusion block 8, so that the trigger switch is disconnected again, the electromagnetic valve 13 is closed, the electromagnet 12 is powered off, the magnetic push plate 18 is reset under the elastic action of the push plate elastic connecting rod 17, the rotating blade 5 rotates and pushes the liquid receiving bucket push rod 21 to slide upwards, the liquid receiving bucket push rod 21 drives the liquid receiving bucket 20 to slide upwards, the liquid receiving bucket 20 drives the liquid receiving bucket clamping plate 25 to slide upwards together through the liquid receiving bucket sliding rod 24 until the liquid receiving bucket 20 rises to the left side of the partition plate 22, the clamping block 26 is aligned with the push plate groove 16, the clamping block 26 extends into the push plate groove 106 under the pushing of the clamping block elastic connecting rod 27 to realize clamping and fixing, the liquid receiving bucket 20 is clamped and fixed to the left side of the partition plate 22, the liquid receiving bucket 20 receives absorption liquid and sends the absorption liquid into the liquid pushing groove 102, and the rotating blade 5 continues to rotate and leaves the liquid receiving bucket push rod 21.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides an absorb scrubbing tower for lithium hexafluorophosphate tail gas, includes that each intercommunication of upper and lower extreme has treatment tower (1) of blast pipe (3), air feed pipe (2), and treatment tower (1) inside rotation is provided with pivot (4) that have a plurality of rotating blade (5), its characterized in that: the upper end and the lower end of the treatment tower (1) are communicated through a circulating pipeline (6), a circulating pump (7) is installed on the circulating pipeline (6), an extrusion block slot (101) in which an extrusion block (8) is arranged in a sliding mode is formed in the inner wall of the treatment tower (1), the extrusion block (8) extends out of the extrusion block slot (101) in a sliding mode and is extruded in a matched mode with the rotating blade (5), and an extrusion block elastic connecting rod (9) is fixedly connected between the extrusion block (8) and the inner wall of the extrusion block slot (101);

the processing tower (1) is also internally provided with a circuit which is connected with a power supply (11), an electromagnet (12), an electromagnetic valve (13) and a trigger switch in series through a lead (10), the trigger switch comprises a first electric connecting plate (14) and a second electric connecting plate (15) which are arranged at intervals, the first electric connecting plate (14) is fixedly connected onto the extrusion block (8), the extrusion block slot (101) is connected with a switch slot (109), an electric connecting plate elastic connecting rod (16) is fixedly connected between the second electric connecting plate (15) and the inner wall of the switch slot (109), and the first electric connecting plate (14) extends into the switch slot (109) and is matched and connected with the second electric connecting plate (15);

the inner wall of the treatment tower (1) is provided with an alkali powder groove (103) and a liquid pushing groove (102) which are vertically arranged, the liquid pushing groove (102) extends to an opening at the inner wall of the treatment tower (1), the upper end of the opening of the liquid pushing groove (102) is communicated with the lower end of the alkali powder groove (103), an electromagnetic valve (13) is arranged at the communication position of the alkali powder groove (103) and the liquid pushing groove (102), a magnetic push plate (18) is arranged in the liquid pushing groove (102) in a sliding mode, an electromagnet (12) is located at one end, far away from the opening of the liquid pushing groove (102), of the magnetic push plate (18), a push plate elastic connecting rod (17) is fixedly connected between the electromagnet (12) and the magnetic push plate (18), the electromagnet (18) is rotatably connected with a threaded rod (19) extending to the opening of the liquid pushing groove (102), a plurality of stirring blades (191) are fixedly connected to one end, close to the opening of the liquid pushing groove (102), and an inner threaded groove matched with the threaded rod (19) is formed in the magnetic push plate (18);

a partition plate (22) provided with a plurality of liquid spraying holes is fixedly arranged at the opening of the liquid pushing groove (102), a check valve (23) is arranged at the lower part of the partition plate (22), a liquid receiving hopper (20) is arranged at the outer side of the partition plate (22) in an up-and-down sliding manner, the liquid receiving hopper (20) is fixedly connected with a liquid receiving hopper push rod (21) matched with the rotating blade (5), a sliding groove (104) is formed in the inner wall of the treatment tower (1), the sliding groove (104) is connected with a limiting groove (105), the liquid receiving hopper (20) is fixedly connected with a liquid receiving hopper sliding rod (24) which penetrates through the sliding groove (104) in a sliding manner and extends into the limiting groove (105), and one end of the liquid receiving hopper sliding rod (24) extending into the limiting groove (105) is fixedly connected with a liquid receiving hopper clamping plate (25);

connect one end of liquid bucket cardboard (25) to keep away from and connect liquid bucket slide bar (24) to slide and stretch out fixture block (26), and fixture block (26) and connect fixedly connected with fixture block elastic connecting rod (27) between liquid bucket cardboard (25) inner wall, spacing groove (105) upper portion is connected with and supplies fixture block (26) slip male push pedal groove (106), push away liquid groove (102) below and be connected with extrusion bull stick groove (107), and extrusion bull stick groove (107) internal rotation is provided with extrusion bull stick (28) that stretch into push away liquid groove (102), and extrusion bull stick (28) and extrusion bull stick groove (107) inner wall within a definite time fixedly connected with bull stick elastic connecting rod (29), it has extrusion push rod (30) that stretch into push pedal groove (106) to slide in extrusion bull stick groove (107), and extrusion push rod (30) stretch into one end fixedly connected with push pedal fixture block (31) of push pedal groove (106), fixed connection has elasticity sleeve (32) between fixture block (31) and push pedal groove (106) inner wall.

2. The absorption scrubber for lithium hexafluorophosphate tail gas as set forth in claim 1, wherein: one end of the electromagnet (2) close to the magnetic push plate (18) is fixedly connected with an electromagnet connecting plate (33), the push plate elastic connecting rod (17) is fixedly connected between the electromagnet connecting plate (33) and the magnetic push plate (18), and the threaded rod (19) is rotatably connected to the electromagnet connecting plate (33).

3. The absorption scrubber for lithium hexafluorophosphate tail gas as set forth in claim 1, wherein: the end face, close to the electromagnet (12), of the magnetic push plate (18) is fixedly connected with a plurality of magnetic blocks (181) which are uniformly arranged, and the magnetic blocks (181) and the electromagnet (12) are magnetically repelled.

4. The absorption scrubber for lithium hexafluorophosphate tail gas as set forth in claim 1, wherein: the circulating pipeline (6) is communicated with a liquid discharge pipe (61), a liquid discharge valve (34) is arranged in the liquid discharge pipe (61), and the liquid outlet end of the liquid discharge pipe (61) is positioned outside the treatment tower (1).

5. The absorption scrubber for lithium hexafluorophosphate tail gas as set forth in claim 1, wherein: the upper part in the treatment tower (1) is provided with a plurality of spray headers (35), and the liquid outlet end of the circulating pipeline (6) is communicated with the spray headers (35).

6. The absorption scrubber for lithium hexafluorophosphate tail gas as set forth in claim 1, wherein: the alkali powder groove (103) is communicated with an external alkali powder conveying device through an alkali powder adding passage (108), and a powder inlet valve (36) is arranged in the alkali powder adding passage (108).

7. The absorption scrubber for lithium hexafluorophosphate tail gas as set forth in claim 1, wherein: an elastic collar (37) is fixedly connected to the inner wall of the treatment tower (1), and the extrusion block (8) penetrates through the elastic collar (37) in a sliding mode.

8. The absorption scrubber for lithium hexafluorophosphate tail gas as recited in claim 1, wherein: the air supply end of the air supply pipe (2) is fixedly extended into the interior of the treatment tower (1), and the height of the air supply end of the air supply pipe (2) is higher than that of the communicating position of the treatment tower (1) and the liquid inlet end of the circulating pipeline (6).

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