CN115554932A - Iodine feeder for synthesizing iodide in reaction kettle and control method thereof - Google Patents

Iodine feeder for synthesizing iodide in reaction kettle and control method thereof Download PDF

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Publication number
CN115554932A
CN115554932A CN202211120485.9A CN202211120485A CN115554932A CN 115554932 A CN115554932 A CN 115554932A CN 202211120485 A CN202211120485 A CN 202211120485A CN 115554932 A CN115554932 A CN 115554932A
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pressure
air
valve
chamber
bin
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CN115554932B (en
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张中誉
候晨笑
张颖颖
田昕
许丽华
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Zhejiang Haichuan Chemical Co ltd
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Zhejiang Haichuan Chemical Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00Feed or outlet devices; Feed or outlet control devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049Controlling or regulating processes
    • B01J2219/00162Controlling or regulating processes controlling the pressure

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  • Chemical Kinetics & Catalysis (AREA)
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Abstract

The invention discloses an iodine feeder for synthesizing iodide in a reaction kettle and a control method thereof, and aims to provide an iodine feeder with an anti-corrosion effect, which can automatically add iodine.

Description

Iodine feeder for synthesizing iodide in reaction kettle and control method thereof
Technical Field
The invention relates to the technical field of chemical reaction equipment accessories, in particular to an iodine feeder for synthesizing iodide in a reaction kettle and a control method thereof.
Background
Iodine and its related compounds are mainly used in medicine, photography and dyes. It can also be used as a tracer for monitoring systems, for example geothermal systems. Silver iodide (AgI) can be used as a photographic negative sensitizer and a seed crystal for cloud formation in artificial rainfall. I is 2 And KI, an alcoholic solution, iodine, are commonly used disinfectants; iodoform (CHI) 3 ) Used as a preservative.
Because iodine has stronger corrosivity, when preparing iodide, the iodine addition to the reation kettle needs the manual work to add, it is very inconvenient to operate, and when adding, also there is higher risk, the practicality is relatively poor, consequently, it is the iodine ware of throwing that can automatic addition to and have the anticorrosion effect to need to put into an urgent need now, but in the in-process of throwing iodine, how to prevent to throw the iodine in the feed bin and polluted by the gas of the interior backward flow of reation kettle, it is also the problem that needs the concern to lead to throwing the iodine passageway to be blockked up.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an iodine feeder which can automatically add iodine and has an anti-corrosion effect.
In order to realize the purpose, the invention provides the following technical scheme: the utility model provides a throw iodine ware for synthetic iodide of reation kettle, includes the feed bin, set up with the screw rod feeding mechanism of feed bin export end play, set up in screw rod feeding mechanism discharge gate department and with the feedstock channel of reation kettle intercommunication and set up the first on-off valve on feedstock channel, screw rod feeding mechanism includes the feed cylinder with feed bin and feedstock channel intercommunication respectively, set up the screw rod in the feed cylinder and be used for the motor of the rotatory pay-off of driving screw rod.
The invention is further configured to: let in inert gas in the feed bin, and be equipped with the second stop valve on inert gas's the inlet channel, the feed bin still is connected with air pressure control mechanism, and this air pressure control mechanism includes the regulation cavity of being connected with the feed bin, sets up in the elastic seal body of regulation cavity open end and sets up the atmospheric pressure regulation structure in adjusting the cavity, and this atmospheric pressure regulation structure is configured as adjusting the cavity internal gas pressure along with the change of feed bin internal gas pressure thereupon and adjusts.
The invention is further configured to: the atmospheric pressure regulation structure is including setting up in adjusting the cavity and with the activity cock body of adjusting the cavity piston connection, still including setting up the first pressure sensor in the feed bin and being used for the first pressure sensor's of electric connection controller, be formed with the constant voltage cavity between activity cock body and the elasticity sealing body.
The invention is further configured to: the pneumatic control structure still includes the pressurize structure, and this pressurize structure is including setting up the pressurize air chamber in adjusting the cavity, the regulating plate of being connected with pressurize air chamber piston, connecting rod connecting movable cock body and regulating plate in proper order, set up between movable cock body and pressurize air chamber and the cover locate the outer reset spring of connecting rod, set up reset channel and the outlet channel on the pressurize cavity, set up the solenoid valve on the reset channel and set up the check valve on the outlet channel, reset channel connects with the air pump.
The invention is further configured to: install on the passageway that resets of being connected with the feed bin and press down the structure that flows, should press down the structure and include the control casing with the passageway intercommunication that resets and set up the subassembly that flows that presses down in the control casing, press down the subassembly including setting up a plurality of inner panels in the control casing and setting up the interior runner on each inner panel, each interior runner intercommunication forms main runner that presses down.
The invention is further configured to: each inner flow passage comprises a straight flow passage, an inclined flow passage and a staggered flow passage, an included angle formed between the central axis of the inclined flow passage and the central axis of the straight flow passage is 0-90 degrees, the structure of the staggered flow passage is the same as that of the straight flow passage, and the central axis of the staggered flow passage and the central axis of the straight flow passage are not on the same straight line.
The invention is further configured to: the control shell comprises an air inlet end and an air outlet end, the air inlet end of the control shell is communicated with the air inlet end of the reset channel, the air outlet end of the control shell is communicated with the air outlet end of the reset channel, the control shell and the reset channel are arranged in parallel, a third shutoff valve is arranged at the air inlet end of the control shell, a fourth shutoff valve is arranged on the parallel section of the reset channel and the control shell, and when the third shutoff valve is closed and the fourth shutoff valve is opened, air flow is discharged from the reset channel; otherwise, gas passes through the control housing.
By adopting the technical scheme, the beneficial effects are that 1, the iodine feeder is arranged to comprise a bin, a screw feeding mechanism arranged at the outlet end of the bin, a feeding channel arranged at the outlet of the screw feeding mechanism and communicated with the reaction kettle, and a first on-off valve arranged on the feeding channel, wherein the screw feeding mechanism comprises a charging barrel respectively communicated with the bin and the feeding channel, a screw arranged in the charging barrel and a motor for driving the screw to rotate and feed, so that the bin is used as a carrier for storing iodine, and the iodine is conveyed by the screw feeding mechanism;
2. in order to prevent gas generated in the reaction kettle from reacting on iodine in the storage bin and influencing the pollution reduction of the iodine in the storage bin, or the iodine is reacted to generate new substances to cause the blockage of an iodine feeding channel and influence the subsequent feeding, inert gas is introduced into the storage bin, the storage bin after the inert gas is introduced can be enabled to continuously keep a relatively stable state, a third stop valve is arranged on a reset channel of the inert gas, the storage bin is also connected with an air pressure control mechanism, the air pressure control mechanism comprises an adjusting chamber connected with the storage bin, an elastic sealing body arranged at the opening end of the adjusting chamber and an air pressure adjusting structure arranged in the adjusting chamber, the air pressure adjusting structure is configured to adjust the air pressure in the adjusting chamber along with the change of the air pressure in the storage bin, and further, the air pressure in the storage bin is adjusted in real time through the arranged air pressure control mechanism, so that the air pressure in the storage bin is continuously greater than the air pressure in the reaction kettle, the protection of the iodine is realized, the influence on the iodine purity is reduced, and the generation of new substances in the iodine feeding channel is avoided, and the blockage of the feeding channel is prevented;
3. the pressure adjusting structure comprises a movable plug body, a first pressure sensor, a controller and a pressure sensor, wherein the movable plug body is arranged in an adjusting cavity and is connected with a piston of the adjusting cavity, the controller is used for electrically connecting the first pressure sensor, a constant pressure cavity is formed between the movable plug body and an elastic sealing body, the pressure in the bin is monitored in real time by the aid of the arranged adjusting cavity and the first pressure sensor, the constant pressure cavity is extruded when the pressure value in the bin is increased due to constant pressure in the constant pressure cavity, the constant pressure cavity is reduced due to the fact that the elastic sealing body is arranged, and otherwise, the constant pressure cavity is enlarged, so that constant pressure operation is performed on the pressure in the bin;
4. in order to improve the effect of pressure maintaining to the adjusting cavity after the air pressure is adjusted, then through still including the pressurize structure at the air pressure adjusting structure, further set up this pressurize structure to including setting up the pressurize air chamber in adjusting the cavity, regulating plate with pressurize air chamber piston connection, the connecting rod of connecting movable cock body and regulating plate in proper order, set up between movable cock body and pressurize air chamber and the cover reset spring outside locating the connecting rod, reset passage and the passageway of giving vent to anger set up on the pressurize cavity, set up the solenoid valve on reset passage and set up the check valve on the passageway of giving vent to anger, when the movable cock body exerts pressure to the pressurize air chamber through the connecting rod to the regulating plate, because reset passage adopts the solenoid valve to carry out on-off control, and the check valve is only responsible for giving vent to anger, the atmospheric pressure in the pressurize air chamber reduces, under the effect of atmospheric pressure, form the pressure effect to the regulating plate, thereby ensure that the regulating plate is in balanced state, and then realize the balanced state of constant pressure chamber formation, reset passage is connected with the air pump, through the air pump that sets up, then can accelerate the restoration of regulating plate, and realize the promotion effect to the volume in the constant pressure reduction feed bin, realize the control of the feed bin.
A control mode suitable for the iodine feeder for synthesizing iodides in the reaction kettle is characterized in that a second pressure sensor is further arranged in the reaction kettle, and the controller further comprises a receiving unit used for receiving pressure values of the first pressure sensor and the second pressure sensor; the comparison unit is used for setting a standard pressure value P in the storage bin, wherein the standard pressure value in the storage bin is the same as the pressure value in the constant-pressure cavity and is compared with the detected pressure value; the timing module is used for timing the pressure change duration of the storage bin; the control unit is used for controlling the on and off of the electromagnetic valve and the start and stop of the motor and comprises the following steps of S1, adding iodine in the storage bin and continuously introducing inert gas into the storage bin;
s2, inflating the bin, monitoring the pressure value in the bin in real time, and monitoring the pressure value in the reaction kettle;
s3, in a first time period, closing the third shutoff valve, opening the fourth shutoff valve, enabling air flow to enter the storage bin from the reset channel, and monitoring the air pressure value in the storage bin, wherein the monitored pressure value is P1;
s4, when P1 is larger than P, the controller closes the first on-off valve, the air pressure in the storage bin acts on the constant pressure chamber to form a pressure effect, the constant pressure chamber is pressed by the movable plug body to move, the movable plug body presses the adjusting plate through the connecting rod, the air in the pressure maintaining air chamber is discharged through the one-way valve, the pressure of the pressure maintaining air chamber is constant, and the operation of keeping the storage bin at a constant pressure is formed; otherwise, continuously pressurizing to ensure that P1 is equal to P, then closing the fourth shutoff valve, opening the third shutoff valve and stably pressurizing the storage bin;
s5, in a second time period, a second pressure sensor monitors that the air pressure value in the reaction kettle is P2, when P2 is larger than P1, the first on-off valve is opened at the moment, the air chamber in the pressure maintaining air chamber is recovered, the movable plug body is reset through a reset spring, the air pump is driven to continuously apply pressure to the pressure maintaining air chamber at the moment, the movable plug body moves to one side of the storage bin, the elastic sealing body of the constant pressure air chamber deforms to one side of the storage bin, the compression of the air in the storage bin is formed, the volume of the storage bin is reduced, and the air pressure in unit volume is increased;
s6, continuously monitoring the air pressure value in the storage bin to be Pt, and if the Pt is larger than or equal to P2, maintaining the original air flow output size; if the Pt is smaller than the P2, the controller is required to close the third on-off valve, open the fourth on-off valve, output inert gas through the gas inlet pipeline and close the first on-off valve and the gas pump;
s7, in a third time period, detecting the pressure value in the reaction kettle by using a second pressure sensor, and if P2 is smaller than P, closing a fourth shut-off valve and opening a third shut-off valve;
and S8, circulating the steps S1 to S7.
Through adopting above-mentioned technical scheme, beneficial effect carries out real-time control through the atmospheric pressure to in the feed bin to also carry out real-time detection to the atmospheric pressure in the reation kettle, both contrast, realize that atmospheric pressure in the feed bin can last be greater than the atmospheric pressure in the reation kettle, and carry out real-time regulation to the pressure in the feed bin through adjusting the cavity, form the effect of constant voltage steady voltage, simple structure, the practicality is strong, ensures the protection to the iodine, improves the purity of iodine before the reaction.
Drawings
Fig. 1 is a schematic partial structural diagram of an embodiment of an iodine feeder for iodide synthesis in a reaction kettle and a control method thereof according to the present invention.
Fig. 2 is an enlarged schematic view of a structure at a point a in fig. 1 of an embodiment of an iodine dosing device for synthesizing iodide in a reaction kettle and a control method thereof according to the present invention.
Reference numeral in the figure, 1, a stock bin; 10. a feed channel; 11. a first on-off valve; 2. a reaction kettle; 30. a charging barrel; 31. a screw; 32. a motor; 4. an air intake passage; 41. a conditioning chamber; 410. an elastic sealing body; 411. a movable plug body; 412. a first pressure sensor; 42. a constant pressure chamber; 43. a pressure maintaining air chamber; 430. an adjusting plate; 431. a connecting rod; 432. a return spring; 434. a reset channel; 435. an air outlet channel; 50. a control housing; 51. an inner plate; 52. an inner flow passage; 520. a straight flow channel; 521. an inclined flow channel; 522. and (4) dislocation flow channels.
Detailed Description
An embodiment of an iodine feeder for iodide synthesis in a reaction kettle and a control method thereof according to the present invention will be further described with reference to fig. 1 to 2.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The utility model provides a throw iodine ware for reation kettle 2 synthetic iodide, including feed bin 1, set up the screw rod 31 feeding mechanism with feed bin 1 outlet end play, set up in screw rod 31 feeding mechanism discharge gate department and with reation kettle 2 intercommunication feedstock channel 10 and set up the first on-off valve 11 on feedstock channel 10, screw rod 31 feeding mechanism includes the feed cylinder 30 with feed bin 1 and feedstock channel 10 intercommunication respectively, set up screw rod 31 in feed cylinder 30 and be used for driving screw rod 31 rotatory pay-off motor 32, through throwing the iodine ware and setting up to include feed bin 1, set up the screw rod 31 feeding mechanism with feed bin 1 outlet end play, set up feed channel 10 that feed cylinder 31 discharge gate department and communicate with reation kettle 2 and set up first on-off valve 11 on feed channel 10, screw rod 31 feeding mechanism includes the feed cylinder 30 with feed cylinder 1 and feedstock channel 10 intercommunication respectively, set up screw rod 31 in feed cylinder 30 and be used for driving screw rod 31 rotatory motor 32, then regard as the carrier that stores iodine, and carry out the iodine through screw rod 31 feeding mechanism, adopt the above-mentioned structure, store in the side in independent 1, and with the dry-type iodine treatment component, the simple structure, and the stable output of the simple structure of the corrosion-resistant processing, and the corrosion-resistant structure of the corrosion-resistant processing component, the corrosion-resistant structure of the corrosion-resistant device is relatively good, the corrosion-resistant device is formed.
The invention is further arranged that inert gas is introduced into the stock bin 1, a second on-off valve is arranged on an air inlet channel 4 of the inert gas, the stock bin 1 is also connected with an air pressure control mechanism, the air pressure control mechanism comprises an adjusting chamber 41 connected with the stock bin 1, an elastic sealing body 410 arranged at the opening end of the adjusting chamber 41 and an air pressure adjusting structure arranged in the adjusting chamber 41, the air pressure adjusting structure is configured to adjust the air pressure in the adjusting chamber 41 along with the change of the air pressure in the stock bin 1, in order to prevent the gas generated by the reaction in the reaction kettle 2 from reacting on the iodine in the stock bin 1 and influencing the pollution reduction of the iodine in the stock bin 1 or the iodine is reacted to generate new substances and causing the blockage of an iodine feeding channel and influencing the subsequent feeding, the stock bin 1 after the inert gas is introduced, can be so that last comparatively stable state that keeps in feed bin 1, and be equipped with the second on-off valve on inert gas's inlet channel 4, feed bin 1 still is connected with air pressure control mechanism, this air pressure control mechanism includes the regulation cavity 41 of being connected with feed bin 1, set up in the elastic sealing body 410 of regulation cavity 41 open end and set up the atmospheric pressure regulation structure in regulating cavity 41, this atmospheric pressure regulation structure is configured to adjust the atmospheric pressure in regulating cavity 41 along with the transform of atmospheric pressure in feed bin 1 thereupon, further through the air pressure control mechanism who sets up, then also carry out real-time regulation to the atmospheric pressure in the feed bin 1, and then ensure that the atmospheric pressure lasts is greater than the atmospheric pressure in reation kettle 2 in feed bin 1, realize the protection to iodine, reduce the influence to iodine purity, also avoided iodine to produce new material in throwing the material passageway, prevent to throw the material passageway by blockking up.
The invention is further arranged that the air pressure adjusting structure comprises a movable plug 411 which is arranged in the adjusting chamber 41 and is connected with the adjusting chamber 41 through a piston, a first pressure sensor 412 which is arranged in the storage bin 1 and a controller which is electrically connected with the first pressure sensor 412, a constant pressure chamber 42 is formed between the movable plug 411 and the elastic sealing body 410, the air pressure adjusting structure further comprises a movable plug 411 which is arranged in the adjusting chamber 41 and is connected with the adjusting chamber 41 through a piston, a first pressure sensor 412 which is arranged in the storage bin 1 and a controller which is electrically connected with the first pressure sensor 412, because the constant pressure chamber 42 is formed between the movable plug 411 and the elastic sealing body 410, the air pressure in the storage bin 1 is monitored in real time through the arranged adjusting chamber 41 and the first pressure sensor 412, because the pressure value in the constant pressure chamber 42 is constant, when the pressure value in the storage bin 1 is increased, the constant pressure chamber 42 is extruded, because of the elastic sealing body 410, the constant pressure chamber 42 is reduced, otherwise, the constant pressure chamber 42 is increased, and the internal pressure of the storage bin 1 is operated.
The present invention is further configured such that the air pressure adjusting structure further includes a pressure maintaining structure, the pressure maintaining structure includes a pressure maintaining air chamber 43 disposed in the adjusting chamber 41, an adjusting plate 430 piston-connected to the pressure maintaining air chamber 43, a connecting rod 431 sequentially connecting the movable plug 411 and the adjusting plate 430, a return spring 432 disposed between the movable plug 411 and the pressure maintaining air chamber 43 and sleeved outside the connecting rod 431, a return passage 434 and an air outlet passage 435 disposed on the pressure maintaining chamber, an electromagnetic valve disposed on the return passage 434, and a check valve disposed on the air outlet passage 435, the return passage 434 is connected to an air pump, in order to improve the effect of maintaining pressure in the adjusting chamber 41 after performing air pressure adjustment, the pressure maintaining structure further includes a pressure maintaining structure, the pressure maintaining structure is further configured to include a pressure maintaining air chamber 43 disposed in the adjusting chamber 41, an adjusting plate 430 piston-connected to the pressure maintaining air chamber 43, a connecting rod 431 sequentially connecting the movable plug 411 and the air chamber 430, a return spring 432 disposed between the movable plug 411 and the air chamber 43 and sleeved outside the connecting rod 431, a return passage 434 disposed on the air outlet passage 434, the adjusting plate 434 is configured to control the pressure maintaining air chamber 430 by the air pump, when the pressure adjusting plate is in a state, the pressure maintaining state, the pressure adjusting plate, the air chamber is controlled by the air chamber, the air pump, the air chamber 43, the air chamber is controlled by the air chamber, the air chamber 430, the air chamber is controlled by the air chamber, the air pump, the air chamber 430, the air chamber is controlled by the air chamber, the air chamber 430, the air pump, the air chamber is controlled by the air chamber 430, the air chamber is controlled by the air chamber, the air pressure adjusting plate, the air chamber 430, it is possible to accelerate the reset of the adjustment plate 430 and to realize the pushing effect of the constant pressure chamber 42, so that the volume inside the silo 1 can be reduced and the control of the pressure inside the silo 1 can be realized. .
The invention is further arranged that a flow restraining structure is arranged on the air inlet channel 4 connected with the storage bin 1, the flow restraining structure comprises a control shell 50 communicated with the air inlet channel 4 and a flow restraining component arranged in the control shell 50, the flow restraining component comprises a plurality of inner plates 51 arranged in the control shell 50 and inner runners 52 arranged on the inner plates 51, the inner runners 52 are communicated to form a main flow restraining channel, by adopting the structure, the air inlet of the air inlet channel 4 is controlled by the arranged flow restraining structure, and when the pressure value in the storage bin 1 is ensured to be relatively constant, the inlet of inert gas can be slowed down by the flow restraining structure, so that the continuous pressure maintaining effect of the whole is improved, the practicability is strong, and the structure is simple.
The invention further provides that each inner runner 52 comprises a straight runner 520, an inclined runner 521 and a staggered runner 522, an included angle formed between the central axis of the inclined runner 521 and the central axial direction of the straight runner 520 is 0-90 degrees, the structure of the staggered runner 522 is the same as that of the straight runner 520, and the central axial direction of the staggered runner 522 and the central axial direction of the straight runner 520 are not on the same straight line, in order to realize the operation of slow flow of inert gas, the effect of increasing the flow obstacle of the gas flow is realized by carrying out runner structure transformation operation on the inner runner 52, the practicability is high, the flowing speed of the gas flow is greatly hindered through the straight runner 520, the inclined runner 521 and the staggered runner 522, the continuous pressurization operation is easy to realize, the stability is high, and the structure is simple.
The invention is further set that the control shell 50 comprises an air inlet end and an air outlet end, the air inlet end of the control shell 50 is communicated with the air inlet end of the air inlet channel 4, the air outlet end of the control shell 50 is communicated with the air outlet end of the air inlet channel 4, the control shell 50 and the air inlet channel 4 are arranged in parallel, the air inlet end of the control shell 50 is provided with a third shutoff valve, the parallel section of the air inlet channel 4 and the control shell 50 is provided with a fourth shutoff valve, and when the third shutoff valve is closed and the fourth shutoff valve is opened, the air flow is discharged from the air inlet channel 4; otherwise, then gaseous from controlling the casing 50 interior through, adopt above-mentioned structure setting, through the third tee bend shut-off valve and the fourth shut-off valve that set up, then can be through the break-make of second, tee bend shut-off valve, the flow direction of control air current realizes holistic control effect, ensures when needs increase the air current, perhaps the regulation effect when slowing down the air current, simple structure, the practicality is strong.
A control mode suitable for the iodine feeder for synthesizing iodide in the reaction kettle 2 is characterized in that a second pressure sensor is further arranged in the reaction kettle 2, and the controller further comprises a receiving unit used for receiving the pressure values of the first pressure sensor and the second pressure sensor; a comparison unit, configured to set a standard pressure value P in the storage bin 1, where the standard pressure value in the storage bin 1 is the same as the pressure value in the constant pressure chamber 42, and is compared with the detected pressure value; the timing module is used for timing the pressure change duration of the storage bin 1; the control unit is used for controlling the on and off of the electromagnetic valve and the on and off of the motor 32 and comprises the following steps of S1, adding iodine in the stock bin 1 and continuously introducing inert gas into the stock bin 1;
s2, inflating the bin 1, monitoring the pressure value in the bin 1 in real time, and monitoring the pressure value in the reaction kettle 2;
s3, in a first time period, closing the third cutoff valve, opening the fourth cutoff valve, enabling air flow to enter the storage bin 1 from the air inlet channel 4, and monitoring the air pressure value in the storage bin 1, wherein the monitored pressure value is P1;
s4, when P1 is larger than P, the controller closes the first on-off valve 11, the air pressure in the storage bin 1 exerts a pressure effect on the constant pressure chamber 42, the constant pressure chamber 42 is pressed by the movable plug body 411 to move, the movable plug body 411 exerts pressure on the adjusting plate 430 through the connecting rod 431, the pressure of the pressure maintaining air chamber 43 is constant after the air in the pressure maintaining air chamber 43 is discharged through the one-way valve, and the operation of keeping the storage bin 1 at a constant pressure is realized; on the contrary, the pressurization is needed to be continued, so that P1 is equal to P, then the fourth shutoff valve is closed, the third shutoff valve is opened, and the stable pressurization is carried out on the stock bin 1;
s5, in a second time period, a second pressure sensor monitors that the air pressure value in the reaction kettle 2 is P2, and when P2 is larger than P1, the first on-off valve 11 is opened at the moment, the air chamber in the pressure maintaining air chamber 43 is recovered, the movable plug body 411 is reset through the reset spring 432, the air pump is driven to continuously apply pressure to the pressure maintaining air chamber 43 at the moment, the movable plug body 411 moves towards one side of the storage bin 1, the elastic sealing body 410 of the constant-pressure air chamber deforms towards one side of the storage bin 1, the gas in the storage bin 1 is extruded, the volume of the storage bin 1 is reduced, and the air pressure in the unit volume is increased;
s6, continuously monitoring the air pressure value in the storage bin 1 to be Pt, and if the Pt is larger than or equal to P2, maintaining the original air flow output size; if Pt is smaller than P2, the controller is required to close the third on-off valve, open the fourth on-off valve, output inert gas through the gas inlet pipeline, and close the first on-off valve 11 and the gas pump;
s7, in a third time period, detecting the pressure value in the reaction kettle 2 by using a second pressure sensor, if P2 is smaller than P, closing a fourth shut-off valve, and opening a third shut-off valve;
and S8, circulating the steps S1 to S7.
Through adopting above-mentioned technical scheme, beneficial effect carries out real-time control through the atmospheric pressure to in the feed bin 1, and also carry out real-time detection to the atmospheric pressure in reation kettle 2, both contrast, realize that atmospheric pressure in the feed bin 1 can last be greater than the atmospheric pressure in reation kettle 2, and carry out real-time regulation to the pressure in the feed bin 1 through adjusting the cavity 41, form the effect of constant voltage steady voltage, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability, ensure the protection to iodine, improve the purity of iodine before the reaction.
In the embodiment of the invention, the feeding channel 10 adopts an inverted bell mouth structure, the opening of the connecting end with the reaction kettle 2 is large, the opening of the connecting end with the charging barrel is small, the outlet is prevented from being blocked, and in order to ensure that materials can be smoothly put in, the first on-off valve 11 arranged in the feeding channel 10 adopts other straight-through valves such as a ball valve and the like, so that the normal putting of the materials is ensured, and the resistance is reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art should be able to make general changes and substitutions within the technical scope of the present invention.

Claims (8)

1. The utility model provides a throw iodine ware for synthetic iodide of reation kettle (2), its characterized in that, including feed bin (1), screw rod (31) feeding mechanism, set up with feed bin (1) export end play, set up in feed channel (10) of screw rod (31) feeding mechanism discharge gate department and with reation kettle (2) intercommunication and set up first on-off valve (11) on feed channel (10), screw rod (31) feeding mechanism is including feed cylinder (30) with feed bin (1) and feed channel (10) intercommunication respectively, set up screw rod (31) in feed cylinder (30) and be used for driving motor (32) of the rotatory pay-off of screw rod (31), feed bin (1), feed cylinder (30), screw rod (31) and feed channel (10) all carry out corrosion-resistant processing.
2. The iodine feeder for synthesizing iodide in the reaction kettle (2) according to claim 1, wherein inert gas is introduced into the storage bin (1), a second cut-off valve is arranged on an air inlet channel (4) of the inert gas, the storage bin (1) is further connected with an air pressure control mechanism, the air pressure control mechanism comprises an adjusting chamber (41) connected with the storage bin (1), an elastic sealing body (410) arranged at an opening end of the adjusting chamber (41), and an air pressure adjusting structure arranged in the adjusting chamber (41), and the air pressure adjusting structure is configured to adjust the air pressure in the adjusting chamber (41) along with the change of the air pressure in the storage bin (1).
3. The iodine feeder for synthesizing iodide in the reaction kettle (2) according to claim 2, wherein the air pressure adjusting structure comprises a movable plug body (411) disposed in the adjusting chamber (41) and connected to the piston of the adjusting chamber (41), a first pressure sensor (412) disposed in the storage bin (1), and a controller for electrically connecting the first pressure sensor (412), wherein a constant pressure chamber (42) is formed between the movable plug body (411) and the elastic sealing body (410).
4. The iodine feeder for synthesizing iodide in the reaction kettle (2) according to claim 3, wherein the pressure adjusting structure further comprises a pressure maintaining structure, the pressure maintaining structure comprises a pressure maintaining air chamber (43) arranged in the adjusting chamber (41), an adjusting plate (430) connected with the pressure maintaining air chamber (43) through a piston, a connecting rod (431) sequentially connecting the movable plug body (411) and the adjusting plate (430), a return spring (432) arranged between the movable plug body (411) and the pressure maintaining air chamber (43) and sleeved outside the connecting rod (431), a return channel (434) and an air outlet channel (435) arranged on the pressure maintaining chamber, an electromagnetic valve arranged on the return channel (434), and a one-way valve arranged on the air outlet channel (435), and the return channel (434) is connected with an air pump.
5. The iodine feeder for synthesizing iodide in the reaction kettle (2) according to claim 1, wherein a flow inhibiting structure is mounted on the reset channel (434) connected with the storage bin (1), the flow inhibiting structure comprises a control shell (50) communicated with the reset channel (434) and a flow inhibiting assembly arranged in the control shell (50), the flow inhibiting assembly comprises a plurality of inner plates (51) arranged in the control shell (50) and inner runners (52) arranged on the inner plates (51), and the inner runners (52) are communicated to form a main flow inhibiting channel.
6. The iodine feeder for synthesizing iodide in the reaction kettle (2) according to claim 5, wherein each inner runner (52) comprises a straight runner (520), an inclined runner (521) and a staggered runner (522), an included angle formed between a central axis of the inclined runner (521) and a central axis of the straight runner (520) is 0-90 degrees, the structure of the staggered runner (522) is the same as that of the straight runner (520), and the central axis of the staggered runner (522) and the central axis of the straight runner (520) are not on the same straight line.
7. The iodine feeder for synthesizing iodide in the reaction kettle (2) according to claim 5, wherein the control shell (50) comprises an air inlet end and an air outlet end, the air inlet end of the control shell (50) is communicated with the air inlet end of the air inlet channel (4), the air outlet end of the control shell (50) is communicated with the air outlet end of the air inlet channel (4), the control shell (50) is arranged in parallel with the air inlet channel (4), the air inlet end of the control shell (50) is provided with a third shut-off valve, the air inlet channel (4) and the control shell (50) are provided with a fourth shut-off valve in parallel, and when the third shut-off valve is closed and the fourth shut-off valve is opened, the air flow is discharged from the air inlet channel (4); conversely, gas passes through the control housing (50).
8. A control mode of the iodine feeder for the reaction kettle (2) to synthesize iodide, which is suitable for any one of the above claims 1-7, wherein the reaction kettle (2) is further provided with a second pressure sensor, and the controller further comprises a receiving unit for receiving pressure values of the first and second pressure sensors; the comparison unit is used for setting a standard pressure value P in the storage bin (1), and the standard pressure value in the storage bin (1) is the same as the pressure value in the constant pressure chamber (42) and is compared with the detected pressure value; the timing module is used for timing the pressure change duration of the stock bin (1); the control unit is used for controlling the on and off of the electromagnetic valve and the start and stop of the motor (32), and comprises the following steps of S1, adding iodine in the stock bin (1), and continuously introducing inert gas into the stock bin (1);
s2, inflating the bin (1), monitoring the pressure value in the bin (1) in real time, and monitoring the pressure value in the reaction kettle (2);
s3, in a first time period, closing the third cutoff valve, opening the fourth cutoff valve, enabling air flow to enter the storage bin (1) from the air inlet channel (4), and monitoring the air pressure value in the storage bin (1), wherein the monitored pressure value is P1;
s4, when P1 is larger than P, the controller closes the first on-off valve (11), the air pressure in the storage bin (1) exerts a pressure effect on the constant pressure chamber (42), at the moment, the constant pressure chamber (42) is pressed by the movable plug body (411) to move, after the movable plug body (411) exerts pressure on the adjusting plate (430) through the connecting rod (431), after the air in the pressure maintaining air chamber (43) is discharged through the one-way valve, the pressure of the pressure maintaining air chamber (43) is constant, and the operation of keeping the storage bin (1) at a constant pressure is realized; on the contrary, the pressurization is needed to be continued, so that P1 is equal to P, then the fourth shutoff valve is closed, the third shutoff valve is opened, and the stable pressurization is carried out on the storage bin (1);
s5, in a second time period, a second pressure sensor monitors that the air pressure value in the reaction kettle (2) is P2, and when P2 is larger than P1, the first on-off valve (11) is opened at the moment, the air chamber in the pressure maintaining air chamber (43) recovers, the movable plug body (411) is reset through the reset spring (432), the air pump is driven to continuously apply pressure to the pressure maintaining air chamber (43) at the moment, the movable plug body (411) moves to one side of the stock bin (1), the elastic sealing body (410) of the constant-pressure air chamber deforms to one side of the stock bin (1), the gas in the stock bin (1) is squeezed, the volume of the stock bin (1) is reduced, and the air pressure in unit volume is increased;
s6, continuously monitoring the air pressure value in the storage bin (1) to be Pt, and if the Pt is larger than or equal to P2, maintaining the original air flow output size; if the Pt is smaller than the P2, the controller is required to close the third on-off valve, open the fourth on-off valve, output inert gas through the gas inlet pipeline and close the first on-off valve (11) and the gas pump;
s7, in a third time period, the second pressure sensor detects the pressure value in the reaction kettle (2), if P2 is smaller than P, the fourth shut-off valve is closed, and the third shut-off valve is opened;
and S8, circulating the steps S1 to S7.
CN202211120485.9A 2022-09-15 2022-09-15 Iodine feeder for synthesizing iodide in reaction kettle and control method thereof Active CN115554932B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115957695A (en) * 2023-03-16 2023-04-14 烟台联利化工有限公司 Automatic feeding and feeding device for aluminum powder

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Publication number Priority date Publication date Assignee Title
RU2141128C1 (en) * 1998-07-06 1999-11-10 Государственное предприятие "Авиагаз-Союз" Indirect pressure regulator
CN110654121A (en) * 2015-09-25 2020-01-07 精工爱普生株式会社 Liquid ejecting apparatus and pressure adjusting apparatus
CN114618411A (en) * 2022-03-04 2022-06-14 芜湖固高自动化技术有限公司 Reation kettle for toxic substance and dog-house that can automatic switching thereof
CN216856648U (en) * 2022-03-17 2022-07-01 河南省氟基新材料科技有限公司 Lithium salt powder unloader of anti-blocking material
CN217093404U (en) * 2022-04-12 2022-08-02 云南云天化股份有限公司 Automatic feeding device and fire retardant production facility thereof

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Publication number Priority date Publication date Assignee Title
RU2141128C1 (en) * 1998-07-06 1999-11-10 Государственное предприятие "Авиагаз-Союз" Indirect pressure regulator
CN110654121A (en) * 2015-09-25 2020-01-07 精工爱普生株式会社 Liquid ejecting apparatus and pressure adjusting apparatus
CN114618411A (en) * 2022-03-04 2022-06-14 芜湖固高自动化技术有限公司 Reation kettle for toxic substance and dog-house that can automatic switching thereof
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CN115957695A (en) * 2023-03-16 2023-04-14 烟台联利化工有限公司 Automatic feeding and feeding device for aluminum powder
CN115957695B (en) * 2023-03-16 2023-05-26 烟台联利化工有限公司 Automatic aluminum powder feeding device

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