CN221062718U

CN221062718U - Reaction kettle for producing ferric trichloride

Info

Publication number: CN221062718U
Application number: CN202322765447.5U
Authority: CN
Inventors: 周登菊; 胡明康; 闵宝珠; 刘佳佳
Original assignee: Shaanxi Languang New Material Co ltd
Current assignee: Shaanxi Languang New Material Co ltd
Priority date: 2023-10-13
Filing date: 2023-10-13
Publication date: 2024-06-04
Anticipated expiration: 2033-10-13

Abstract

The utility model discloses a reaction kettle for producing ferric trichloride, which comprises a bottom frame, a reaction kettle body, a sealing cover plate, a feeding pipe, a pressure gauge, a one-way valve, a discharge port and a stirring device. The beneficial effects of the utility model are as follows: through having set up agitating unit, make the stirring leaf rotate through driving motor drive (mixing) shaft and mix, then through articulated groove, articulated piece and clean mechanism's articulated cooperation, the stability of clean mechanism has been improved, then reach the clear effect of stirring through clean mechanism, also improved the production efficiency to ferric trichloride, through having set up clean mechanism, rotatory and produce centrifugal force through the stirring rod, when making movable rod slide downwards along accomodating groove and spout, under movable spring's elasticity tensile, make movable rod slide reciprocally along accomodating groove and spout, and drive connecting rod and vortex mechanism carry out the mixed auxiliary action of intensive reaction to this internal ferric trichloride of reation kettle, also shake the effect of trembling to the ferric trichloride of reation kettle body inner wall.

Description

Reaction kettle for producing ferric trichloride

Technical Field

The utility model relates to the technical field of ferric trichloride production and application, in particular to a reaction kettle for ferric trichloride production.

Background

Ferric chloride is usually ferric chloride, the chemical formula is FeCl3, the ferric chloride is a covalent compound, the ferric chloride is black brown crystals and also has flake shapes, the ferric chloride is easily dissolved in water and has strong water absorption, the water in the air can be absorbed to be deliquesced, the FeCl3 is separated from an aqueous solution, the six crystal waters are FeCl3.6H2O, the ferric chloride hexahydrate is orange crystals, the ferric chloride is an important ferric salt, the ferric chloride is widely applied at present, the ferric chloride needs to be subjected to reaction treatment by using a reaction kettle in the production process, but the conventional reaction kettle for the ferric chloride has more general internal heating efficiency due to larger volume, and is more troublesome when the internal cleaning is required.

For example, CN202020784278.3 discloses an improved reaction kettle for producing ferric trichloride, the external scraping plate of the heating rotating shaft can gently scrape impurities on the inner wall of the shell of the reaction kettle when the heating rotating shaft rotates and stirs, meanwhile, clean water can be injected into the shell of the reaction kettle from the feeding pipe, and finally impurities are discharged from the discharging pipe, so that the situation that the cleaning of the impurities is troublesome can be effectively avoided, and the bottom end of the heating rotating shaft is positioned in the limiting frame, so that the rotation of the reaction kettle is stable under the condition that the discharging is not influenced, the structural stability of the reaction kettle can be effectively enhanced, and the problems that the heating efficiency of the reaction kettle for ferric trichloride is common and the cleaning of the interior is troublesome are effectively solved.

Although the improved reaction kettle for producing the ferric trichloride has certain advantages in terms of cleaning, certain disadvantages still exist;

When the heating rotation shaft rotates and stirs, the external scraping plate scrapes impurities on the inner wall of the reaction kettle shell when rotating, but after the impurities on the inner wall of the reaction kettle shell have certain coagulability, the external scraping plate can not hang the impurities on the inner wall of the reaction kettle shell when rotating and stirring, then solidification and agglomeration remain on the inner wall of the reaction kettle shell and cannot be cleaned, so that the reaction of the reaction kettle on ferric trichloride is affected, and the generation of the ferric trichloride is slowed down.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provides a reaction kettle for producing ferric trichloride.

The aim of the utility model is achieved by the following technical scheme: the utility model provides a reation kettle is used in ferric trichloride production, includes chassis, reation kettle body, sealed apron, pan feeding pipe, manometer, check valve, discharge gate and agitating unit, the chassis is installed in the lower extreme outside of reation kettle body, the top of reation kettle body is equipped with sealed apron, the pan feeding pipe sets up in the top left side of sealed apron, the manometer sets up in the top middle part of sealed apron, the check valve sets up in the top right side of sealed apron, the discharge gate sets up in the bottom middle part of reation kettle body, still includes agitating unit, agitating unit installs in the inboard upper end of reation kettle body, agitating unit includes driving motor, (mixing) shaft, stirring leaf, hinge groove, hinge piece and clean mechanism, driving motor's output adopts shaft coupling and the top transmission of stirring shaft to be connected, the lower extreme and the middle part inboard transmission of stirring leaf are connected, the hinge groove is equipped with two sets of hinge groove, and two sets of hinge grooves set up along the left and right sides symmetry of stirring leaf respectively, the inside of hinge piece articulates, hinge piece and clean motor fixed connection in the middle part of body top of reation kettle;

The stirring device is arranged at the upper end of the inner side of the reaction kettle body and comprises a driving motor, a stirring shaft, stirring blades, a hinge groove, a hinge block and a cleaning mechanism, wherein the output end of the driving motor is connected with the top end of the stirring shaft in a transmission manner, the lower end of the stirring shaft is connected with the inner side of the middle part of the stirring blades in a transmission manner, the two groups of hinge grooves are respectively arranged along the symmetrical arrangement of the left end and the right end of the stirring blades, the hinge block is hinged to the inner side of the middle part of the hinge groove, the hinge block is fixedly connected with the upper end of the cleaning mechanism, and the driving motor is arranged at the middle part of the top end of the reaction kettle body.

The cleaning mechanism comprises a poking rod, a storage groove, sliding grooves, a movable rod, a movable spring, a connecting rod and a turbulence mechanism, wherein the storage groove is formed in the inner side of the lower end of the poking rod, two groups of sliding grooves are formed in the sliding grooves respectively along the inner sides of the left end and the right end of the storage groove, the inner sides of the sliding grooves are in sliding fit with the left side and the right side of the upper end of the movable rod, the outer side of the west end of the poking rod is in elastic fit with the outer side of the upper end of the connecting rod through the movable spring, the middle part of the upper end of the connecting rod is fixed with the lower end of the movable rod, the lower end of the connecting rod is fixed with the middle part of the upper end of the turbulence mechanism, and the inner side of the upper end of the poking rod is hinged with a hinge block.

The vortex mechanism comprises a vortex plate, a hinge clamping groove, a hinge plate and an arc-shaped scraping plate, wherein the hinge clamping groove is formed in the inner side of the lower end of the vortex plate, the inner side of the lower end of the hinge clamping groove is fixedly embedded with the upper end of the hinge plate, the bottom end of the hinge plate is fixedly connected with the arc-shaped scraping plate, and the middle part of the upper end of the vortex plate is fixedly connected with the lower end of the connecting rod.

The stirring blade middle part inboard is equipped with multiunit guide bar, and the guide bar sets up along the inboard left and right sides both ends evenly distributed of stirring blade respectively, can play the effect of liquid direction to the flow direction of ferric trichloride through the guide bar, and then makes the circulation effect that improves ferric trichloride.

The cleaning mechanism is provided with two groups, and two groups of cleaning mechanism are connected with the hinge block in a hinge mode respectively, and the two groups of cleaning mechanism are arranged symmetrically along the left end and the right end of the stirring blade respectively, and are not easy to throw out to cause falling off when rotating through the effect of the hinge locking of the hinge block.

The upper end edge cover of movable spring is located accomodates groove middle part outside, and movable spring's lower extreme edge cover is located the upper end outside of connecting rod, through the effect that movable spring was stretched from the elasticity in area, can make the movable rod shake the effect that shakes off to the ferric trichloride of reation kettle body inner wall.

The inner side of the lower end of the storage groove is provided with a groove, and the width of the groove is identical with the width of the upper end of the movable rod, so that the movable rod also has a certain limiting effect on the movable rod during sliding vibration.

The hinge clamping grooves and the hinge plates are respectively provided with seven groups, the hinge clamping grooves are uniformly distributed along the bottom end of the poking rod, the hinge plates are uniformly distributed along the top end of the arc-shaped scraping plate, and the seven groups of hinge clamping grooves and the hinge plates are correspondingly arranged.

The utility model has the following advantages: according to the utility model, the stirring device is arranged, the stirring shaft is driven by the driving motor to enable the stirring blades to rotate and mix, and then the hinged grooves, the hinged blocks and the cleaning mechanism are hinged and matched, so that the stability of the cleaning mechanism is improved, the stirring and cleaning effects are achieved through the cleaning mechanism, and the generation efficiency of ferric trichloride is also improved.

Through having set up clean mechanism, rotatory and the centrifugal force that produces through the poking rod, when making the movable rod slide downwards along accomodating groove and spout, under the elastic extension of movable spring, make the movable rod slide reciprocally along accomodating groove and spout to drive connecting rod and vortex mechanism and carry out abundant reaction mixed's auxiliary action to this internal ferric trichloride of reation kettle, also shake the effect that shakes off to the ferric trichloride of reation kettle body inner wall.

Through having set up vortex mechanism, through the articulated cooperation of articulated draw-in groove and articulated slab, make spoiler and arc scraper blade install fast, rethread arc scraper blade and articulated slab are to ferric chloride's reaction improves to the effect of direction has been played to the flow direction of ferric chloride through the spoiler, prevent that the ferric chloride from blockking up.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic plan view of the present utility model;

FIG. 3 is a schematic plan view of a stirring device according to the present utility model;

FIG. 4 is a schematic plan view of a cleaning mechanism according to the present utility model;

fig. 5 is a schematic plan view of a spoiler mechanism according to the present utility model.

In the figure, 1-underframe, 2-reaction kettle body, 3-sealed apron, 4-pan feeding pipe, 5-manometer, 6-check valve, 7-discharge gate, 8-agitating unit, 81-driving motor, 82- (mixing) shaft, 83-stirring leaf, 84-hinge groove, 85-hinge piece, 86-cleaning mechanism, 861-stirring rod, 862-storage groove, 863-spout, 864-movable rod, 865-movable spring, 866-connecting rod, 867-vortex mechanism, 8671-spoiler, 8672-hinge draw-in groove, 8673-hinged plate, 8674-arc scraper blade.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-3, a reaction kettle for producing ferric trichloride comprises a bottom frame 1, a reaction kettle body 2, a sealing cover plate 3, a feeding pipe 4, a pressure gauge 5, a one-way valve 6, a discharge hole 7 and a stirring device 8, wherein the bottom frame 1 is arranged on the outer side of the lower end of the reaction kettle body 2, the sealing cover plate 3 is arranged at the top end of the reaction kettle body 2, the feeding pipe 4 is arranged on the left side of the top end of the sealing cover plate 3, the pressure gauge 5 is arranged in the middle of the top end of the sealing cover plate 3, the one-way valve 6 is arranged on the right side of the top end of the sealing cover plate 3, the discharge hole 7 is arranged in the middle of the bottom end of the reaction kettle body 2, the stirring device 8 is arranged on the upper end of the inner side of the reaction kettle body 2, the stirring device 8 comprises a driving motor 81, a stirring shaft 82, stirring blades 83, a hinge groove 84, a hinge block 85 and a cleaning mechanism 86, wherein the output end of the driving motor 81 is in transmission connection with the top end of the stirring shaft 82 by adopting a coupler, the lower end of the stirring shaft 82 is in transmission connection with the inner side of the middle part of the stirring blades 83, two groups of hinge grooves 84 are arranged, the two groups of hinge grooves 84 are symmetrically arranged along the left end and the right end of the stirring blades 83 respectively, the inner side of the middle part of the hinge groove 84 is hinged with the hinge block 85, the hinge block 85 is fixedly connected with the upper end of the cleaning mechanism 86, and the driving motor 81 is arranged in the middle part of the top end of the reaction kettle body 2;

Stirring device 8 installs in the inboard upper end of reation kettle body 2, stirring device 8 includes driving motor 81, (mixing) shaft 82, stirring leaf 83, hinge groove 84, hinge piece 85 and clean mechanism 86, driving motor 81's output adopts the top transmission of shaft coupling and stirring shaft 82 to be connected, stirring shaft 82's lower extreme and stirring leaf 83's the inboard transmission in middle part are connected, hinge groove 84 is equipped with two sets of, two sets of hinge grooves 84 set up along stirring leaf 83's left and right sides both ends symmetry respectively, hinge piece 85 has been articulated to the inboard in middle part of hinge groove 84, hinge piece 85 and clean mechanism 86's upper end fixed connection, driving motor 81 installs in reation kettle body 2's top middle part.

As shown in fig. 4, the cleaning mechanism 86 includes a toggle rod 861, a storage slot 862, a sliding slot 863, a movable rod 864, a movable spring 865, a connecting rod 866 and a turbulence mechanism 867, wherein the storage slot 862 is arranged at the inner side of the lower end of the toggle rod 861, the sliding slots 863 are provided with two groups, the two groups of sliding slots 863 are respectively arranged along the inner sides of the left and right ends of the storage slot 862, the inner sides of the sliding slots 863 are in sliding fit with the left and right sides of the upper end of the movable rod 864, the outer side of the west end of the toggle rod 861 is in elastic fit with the outer side of the upper end of the connecting rod 866 through the movable spring 865, the middle part of the upper end of the connecting rod 866 is fixed with the lower end of the movable rod 864, and the lower end of the turbulence mechanism 867 are fixed with the middle part of the upper end of the turbulence mechanism 867, and the inner side of the upper end of the toggle rod 861 is hinged with the hinge block 85.

As shown in fig. 5, the spoiler mechanism 867 includes a spoiler 8671, a hinge clamping groove 8672, a hinge plate 8673 and an arc-shaped scraping plate 8674, wherein the hinge clamping groove 8672 is formed in the inner side of the lower end of the spoiler 8671, the inner side of the lower end of the hinge clamping groove 8672 is fixedly embedded with the upper end of the hinge plate 8673, the bottom end of the hinge plate 8673 is fixedly connected with the arc-shaped scraping plate 8674, and the middle part of the upper end of the spoiler 8671 is fixedly connected with the lower end of the connecting rod 866.

The stirring vane 83 middle part inboard is equipped with multiunit guide bar, and the guide bar sets up along stirring vane 83's inboard left and right sides both ends evenly distributed respectively, can play the effect of liquid direction to the flow direction of ferric chloride through the guide bar, and then makes the circulation effect that improves ferric chloride.

The cleaning mechanism 86 is provided with two sets of, and two sets of cleaning mechanism 86 are connected with the articulated piece 85 is articulated respectively, and two sets of cleaning mechanism 86 set up along stirring leaf 83 left and right sides both ends symmetry respectively, through the effect of the articulated locking of articulated piece 85, make cleaning mechanism 86 be difficult for throwing away when rotatory and lead to droing.

The upper end edge of the movable spring 865 is sleeved outside the middle part of the accommodating groove 862, the lower end edge of the movable spring 865 is sleeved outside the upper end of the connecting rod 866, and the movable rod 864 can vibrate and shake off the ferric trichloride on the inner wall of the reaction kettle body 2 through the elastic stretching effect of the movable spring 865.

The inner side of the lower end of the accommodating groove 862 is provided with a groove, and the width of the groove is matched with the width of the upper end of the movable rod 864, so that the movable rod 864 also has a certain limiting effect on the movable rod 864 during sliding vibration.

The hinge clamping grooves 8672 and the hinge plates 8673 are provided with seven groups, the hinge clamping grooves 8672 are uniformly distributed along the bottom end of the toggle rod 861, the hinge plates 8673 are uniformly distributed along the top end of the arc-shaped scraping plate 8674, and the seven groups of hinge clamping grooves 8672 and the hinge plates 8673 are correspondingly arranged.

The working process of the utility model is as follows: opening a feeding pipe 4 above the reaction kettle body 2, then respectively placing ferric trichloride materials in the feeding pipe 4, and then locking the feeding pipe 4 to prevent the air pressure from being influenced by the outside to change;

the inside of the reaction kettle body 2 is heated, so that the reaction effect of ferric trichloride is ensured to be in a relatively stable state, then the driving motor 81 is started, the stirring shaft 82 is driven to rotate by the driving motor 81, the stirring shaft 82 drives the stirring blades 83 to synchronously rotate, and then the stirring blades 83 can observe the change of the air pressure inside the reaction kettle body 2 through the pressure gauge 5 above the sealing cover plate 3 when rotating and mixing, so that timely adjustment is conveniently carried out;

Then stirring blade 83 rotates, and simultaneously, through the articulated connection of articulated slot 84, articulated block 85 and stirring rod 861, thereby improve stirring rod 861's steady row, then stirring rod 861 carries out synchronous rotation along with stirring blade 83's rotation and produces centrifugal force, then movable rod 864 slides down along accomodating slot 862 and spout 863, under the elasticity tensile of movable spring 865, make movable rod 864 reciprocate along accomodating slot 862 and spout 863 and produce vibrations, simultaneously movable rod 864 drives connecting rod 866 and vortex mechanism 867 and carries out abundant reaction mixed's auxiliary action to the ferric chloride in the reation kettle body 1, and when movable rod 864 reciprocates along accomodating slot 862 and spout 863 inboard and produces vibrations, movable rod 864 can make spoiler 8671 and arc scraper 8674 vibrate the material that the ferric chloride remained on reation kettle body 2 inner wall, and to anti-reaction kettle body 2's material

The ferric trichloride on the inner wall of the reaction kettle body 1 is vibrated and shaken off, so that part of the mixture is prevented from being solidified on the inner wall of the reaction kettle body 2;

Finally, through the articulated cooperation of the articulated clamping groove 8672 and the hinged plate 8673, the spoiler 8671 and the arc scraping plate 8674 are installed fast, the reaction of the arc scraping plate 8674 and the hinged plate 8673 to the ferric trichloride is improved, the effect of guiding is achieved through the flow direction of the ferric trichloride by the spoiler 8671, the ferric trichloride is prevented from being blocked, then after the reaction inside the reaction kettle body 2 is completed, the pressure in the reaction kettle can be relieved through the one-way valve 6, after the pressure relief is completed, the one-way valve is opened, part of precipitated raw material particles in the one-way valve are discharged back into the reaction kettle through the material return pipe, the influence on the external environment is avoided, and meanwhile, the waste of raw materials can be avoided.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a reation kettle is used in ferric trichloride production, includes chassis (1), reation kettle body (2), sealed apron (3), pan feeding pipe (4), manometer (5), check valve (6) and discharge gate (7), chassis (1) are installed in the lower extreme outside of reation kettle body (2), the top of reation kettle body (2) is equipped with sealed apron (3), pan feeding pipe (4) set up in the top left side of sealed apron (3), manometer (5) set up in the top middle part of sealed apron (3), check valve (6) set up in the top right side of sealed apron (3), discharge gate (7) set up in the bottom middle part of reation kettle body (2);

The method is characterized in that: still include agitating unit (8), agitating unit (8) are installed in the inboard upper end of reation kettle body (2), agitating unit (8) are including driving motor (81), (82), stirring leaf (83), hinge groove (84), hinge piece (85) and clean mechanism (86), the output of driving motor (81) adopts the top transmission of shaft coupling and (82) to be connected, the lower extreme of (82) is connected with the inboard transmission in middle part of stirring leaf (83), hinge groove (84) are equipped with two sets of, and two sets of hinge groove (84) are respectively along the left and right sides both ends symmetry of stirring leaf (83), the inboard hinge piece (85) that articulates in middle part of hinge groove (84), the upper end fixed connection of hinge piece (85) and clean mechanism (86), driving motor (81) are installed in the top middle part of reation kettle body (2).

2. The reaction kettle for producing ferric trichloride according to claim 1, wherein: the cleaning mechanism (86) comprises a poking rod (861), a storage groove (862), a sliding groove (863), a movable rod (864), a movable spring (865), a connecting rod (866) and a turbulence mechanism (867), wherein the storage groove (862) is formed in the inner side of the lower end of the poking rod (861), two groups of sliding grooves (863) are formed in the inner sides of the left end and the right end of the storage groove (862) respectively, the inner side of the sliding groove (863) is in sliding fit with the left side and the right side of the upper end of the movable rod (864), the outer side of the west end of the poking rod (861) is in elastic fit with the outer side of the upper end of the connecting rod (866) through the movable spring (865), the middle part of the upper end of the connecting rod (866) is fixed with the middle part of the upper end of the movable rod (864), the lower end of the connecting rod (866) is fixed with the middle part of the upper end of the turbulence mechanism (867), and the inner side of the upper end of the poking rod (861) is hinged with a hinge block (85).

3. The reaction kettle for producing ferric trichloride according to claim 2, wherein: the vortex mechanism (867) comprises a vortex plate (8671), a hinge clamping groove (8672), a hinge plate (8673) and an arc-shaped scraping plate (8674), wherein the hinge clamping groove (8672) is formed in the inner side of the lower end of the vortex plate (8671), the inner side of the lower end of the hinge clamping groove (8672) is fixedly embedded with the upper end of the hinge plate (8673), the bottom end of the hinge plate (8673) is fixedly connected with the arc-shaped scraping plate (8674), and the middle part of the upper end of the vortex plate (8671) is fixedly connected with the lower end of the connecting rod (866).

4. The reaction kettle for producing ferric trichloride according to claim 1, wherein: the inner side of the middle part of the stirring blade (83) is provided with a plurality of groups of guide rods, and the guide rods are uniformly distributed along the left end and the right end of the inner side of the stirring blade (83).

5. The reaction kettle for producing ferric trichloride according to claim 1, wherein: the cleaning mechanisms (86) are provided with two groups, the two groups of cleaning mechanisms (86) are respectively hinged with the hinge blocks (85), and the two groups of cleaning mechanisms (86) are respectively symmetrically arranged along the left end and the right end of the stirring blade (83).

6. The reaction kettle for producing ferric trichloride according to claim 2, wherein: the upper end edge of the movable spring (865) is sleeved on the outer side of the middle of the accommodating groove (862), and the lower end edge of the movable spring (865) is sleeved on the outer side of the upper end of the connecting rod (866).

7. The reaction kettle for producing ferric trichloride according to claim 2, wherein: the inner side of the lower end of the containing groove (862) is provided with a groove, and the width of the groove is matched with the width of the upper end of the movable rod (864).

8. A reaction kettle for producing ferric trichloride according to claim 3, wherein: the hinge clamping grooves (8672) and the hinge plates (8673) are respectively provided with seven groups, the hinge clamping grooves (8672) are uniformly distributed along the bottom end of the toggle rod (861), the hinge plates (8673) are uniformly distributed along the top end of the arc-shaped scraping plate (8674), and the seven groups of hinge clamping grooves (8672) and the hinge plates (8673) are correspondingly arranged.