Stirring descaling structure and reaction kettle

Abstract

The utility model relates to the technical field of chemical equipment, and discloses a stirring descaling structure and a reaction kettle, a fixed part and a movable part of a stirring component in the stirring descaling structure are both connected with a central shaft and rotate along with the central shaft, so that stirring in the reaction kettle is realized; the fixed part is used for stirring materials at the bottom of the reaction kettle, and the movable part is arranged above the fixed part and can move relative to the fixed part to drive the descaling assembly to move at different positions of the inner wall of the reaction kettle along with the movement of the movable part for descaling, so that a scale layer is prevented from being formed on the inner wall of the reaction kettle; meanwhile, scales generated on the inner wall of the reaction kettle can be removed in time, and the descaling effect is better; when the movable part moves close to the fixed part, the stirring interval is gradually expanded; when the movable part moves away from the fixed part, the stirring interval is gradually reduced, the width and height of the stirring interval are continuously changed to realize stirring at different liquid levels, scale on the inner wall of the reaction kettle is mixed with materials in time, and the working efficiency in the reaction kettle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical equipment technical field especially, relates to a stirring descaling structure and reaction kettle. BACKGROUND

[0002] The red soil nickel ore wet smelting process is more and more widely applied in the red soil nickel ore smelting field due to its environmental protection advantage. The red soil nickel ore wet smelting process mainly includes atmospheric leaching and pressure leaching, wherein the process flow of the pressure leaching process is generally that first, the ore is made into ore slurry, then the ore slurry is preheated, the preheated ore slurry is subjected to pressure acid leaching in an autoclave, then the temperature and pressure are reduced, the leaching slurry is neutralized and separated, and the leaching solution is purified.

[0003] However, in the high-temperature leaching process, due to the hydrolysis and precipitation of metal ions such as trivalent iron ions and aluminum ions, the precipitation of low-solubility substances such as calcium sulfate, and the precipitation of solid-phase impurities such as silicon dioxide in the mineral, scale will be formed on the wall of the high-pressure reactor, which will cause a series of problems such as reduction of the volume of the reactor, which is not conducive to production. In view of the problem of scale accumulation in the reactor, the existing reactor cleaning and descaling system is provided with a cleaning tank in communication with the inlet of the reactor, two pipelines in communication with the cleaning tank are respectively connected with a first electromagnetic valve and a second electromagnetic valve, an acidic cleaning liquid container and an alkaline cleaning liquid container can pass through the two pipelines respectively, a pH value monitor is arranged in the reactor, a programmable controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve and the pH value monitor, and the reactor is pumped and washed; an acid-base neutralizing device is connected with the outlet of the reactor through a pipeline; and a water filter is connected with the cleaning tank and the acid-base neutralizing device through a pipeline, so that the reactor can be chemically cleaned in a long cycle.

[0004] However, the existing reactor cleaning and descaling system removes the scale by adding a descaling agent, and when there is a lot of scale, the removal is not timely and the effect is not good. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a stirring descaling structure and reaction kettle, which can timely remove the scale of the reactor and has good descaling effect.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The stirring descaling structure comprises:

[0008] The stirring assembly comprises a fixed part, a movable part and a central shaft, the central shaft is fixed with the fixed part and the movable part and can rotate, the fixed part is used for stirring materials at the bottom of the kettle body, the movable part is arranged above the fixed part and can move relative to the fixed part, when the movable part moves towards the fixed part, the stirring range of the movable part gradually expands, and when the movable part moves away from the fixed part, the stirring range of the movable part gradually shrinks.

[0009] The descaling assembly is provided with a descaling end for removing the scale on the inner wall of the kettle body, and the other end of the descaling assembly is connected with the movable part.

[0010] As an optional technical scheme of the stirring and descaling structure, the stirring and descaling structure further comprises a rotating driving member, the top end of the central shaft penetrates through the kettle body and is connected with the driving end of the rotating driving member, so that the rotating driving member can drive the fixed part and the movable part to rotate on the horizontal plane through the central shaft.

[0011] As an optional technical scheme of the stirring and descaling structure, the fixed part comprises a fixed sleeve and a fixed paddle, the fixed sleeve is fixedly sleeved outside the end of the central shaft, and the outer side of the fixed sleeve is sequentially provided with a plurality of fixed paddles along the circumference of the fixed sleeve.

[0012] As an optional technical scheme of the stirring and descaling structure, the fixed part comprises a fixed seat, the fixed seat is sleeved outside the central shaft, the movable part comprises a movable seat and a movable assembly, the movable seat is slidably sleeved outside the central shaft and above the fixed seat, a plurality of movable assemblies are sequentially arranged outside the central shaft along the circumference of the central shaft, the movable assembly comprises a movable rod, a movable paddle and a connecting rod, a plurality of connecting rods are sequentially arranged outside the movable seat along the circumference of the movable seat, a plurality of movable rods are sequentially arranged outside the fixed seat along the circumference of the fixed seat, the two ends of the connecting rod are rotatably connected with the movable seat and the movable rod through a hinge seat, one end of the movable rod is rotatably connected with the fixed seat in the vertical plane, and the other end of the movable rod is fixedly connected with the movable paddle.

[0013] As an optional technical scheme of the stirring and descaling structure, the central shaft is provided with a sliding groove extending along the sliding direction of the movable seat on both sides, the inner side of the movable seat is provided with two sliding blocks corresponding in position to the sliding grooves, and the sliding blocks are built in the sliding grooves and are slidably connected with the sliding grooves.

[0014] As an optional technical scheme of the stirring and descaling structure, the sliding driving member is connected with the movable seat and drives the movable seat to move relative to the fixed seat.

[0015] As an optional technical scheme of the stirring and descaling structure, the sliding driving member includes a screw rod, a threaded sleeve and a sliding motor, the screw rod is arranged on one side of the stirring assembly, the length direction of the screw rod is parallel to the sliding direction of the movable seat, the threaded sleeve is sleeved outside the screw rod and is threadedly connected with the screw rod, the threaded sleeve abuts against the movable seat along the sliding direction, the top end of the screw rod penetrates through the kettle body of the reaction kettle and is connected with the driving end of the sliding motor, and the sliding driving member drives the screw rod to rotate to drive the threaded sleeve to move along the length direction of the screw rod, so that the movable seat slides.

[0016] As an optional technical scheme of the stirring and descaling structure, the top end of the movable seat is rotationally arranged with a connecting sleeve, and the sliding driving member is connected with the connecting sleeve; an annular groove is arranged in the inner side of the connecting sleeve, the top wall and the bottom wall of the annular groove are provided with a plurality of ball bearings, and the plurality of ball bearings are arranged in an annular array mode based on the central axis of the central shaft; an annular frame that is rotationally connected with the annular groove is fixedly arranged at the top of the movable seat, and the annular frame is movably clamped between the plurality of ball bearings, so that the annular frame can rotate in the annular groove.

[0017] As an optional technical scheme of the stirring and descaling structure, the descaling assembly includes a descaling rod and a scraper, the two ends of the descaling rod are connected with the scraper and the movable seat respectively, the scraper abuts against the inner wall of the kettle body of the reaction kettle, and the scraper can scrape the inner wall of the kettle body of the reaction kettle through the sliding of the movable seat.

[0018] The reaction kettle includes a kettle body and the stirring and descaling structure as described in any one of the above, the descaling assembly abuts against the inner wall of the kettle body, part of the central shaft, the fixed part and the movable part are arranged in the kettle body, and the central shaft is rotationally arranged at the top of the kettle body.

[0019] The reaction kettle includes a kettle body and the stirring and descaling structure as described in any one of the above, the descaling assembly abuts against the inner wall of the kettle body, part of the central shaft, the fixed part and the movable part are arranged in the kettle body, and the central shaft is rotationally arranged at the top of the kettle body.

[0020] The stirring and scale-removing structure provided by the utility model comprises a stirring assembly and a scale-removing assembly, the stirring assembly comprises a fixed part, a movable part and a central shaft, the fixed part and the movable part are both connected with the central shaft and rotate with the central shaft, and the stirring in the reaction kettle is realized; the fixed part is used for stirring materials at the bottom of the reaction kettle, the movable part is arranged above the fixed part and can move relative to the fixed part, drives the scale-removing assembly to move at different positions of the inner wall of the reaction kettle along with the movement of the movable part, is favorable for preventing the formation of scale layer on the inner wall of the reaction kettle, at the same time, the scale-removing assembly can also clean the already-formed scale on the inner wall of the reaction kettle in time, and the scale-removing effect is better; when the movable part moves towards the fixed part, the stirring interval of the movable part gradually expands; when the movable part moves away from the fixed part, the stirring interval of the movable part gradually shrinks, so that the stirring is carried out at the same time of scale removal, the width and height of the stirring interval acted on by the stirring assembly can change constantly, the rotational flow of different degrees is formed in the reaction kettle, and the stirring of materials of different liquid levels can be realized.

[0021] The reaction kettle provided by the utility model comprises the above-mentioned stirring and scale-removing structure and a kettle body, the part of the central shaft, the fixed part and the movable part are all arranged in the kettle body, the central shaft is rotatably arranged at the top of the kettle body, the scale-removing assembly and the inner wall of the kettle body are kept in abutment, the scale on the inner wall of the kettle body can be mixed with the materials in time, and the operation efficiency of the reaction kettle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view cross-sectional structure schematic diagram of the stirring and scale-removing structure provided by the embodiment of the utility model;

[0023] Figure 2 It is a front view cross-sectional structure schematic diagram of the stirring and scale-removing structure provided by the embodiment of the utility model when the movable paddle moves to the highest position;

[0024] Figure 3 It is a front view cross-sectional structure schematic diagram of the stirring and scale-removing structure provided by the embodiment of the utility model when the movable paddle moves to the lowest position;

[0025] Figure 4 It is a cross-sectional view of the central shaft and the movable seat of the stirring and scale-removing structure provided by the embodiment of the utility model;

[0026] Figure 5 It is a cross-sectional view of the movable seat and the connecting sleeve of the stirring and scale-removing structure provided by the embodiment of the utility model;

[0027] Figure 6 It is a front view cross-sectional structure schematic diagram of the stirring and scale-removing structure in another embodiment provided by the embodiment of the utility model.

[0028] In the drawing:

[0029] 1, stirring assembly; 11, fixed part; 111, fixed sleeve; 112, fixed paddle; 113, fixed seat; 12, movable part; 121, movable seat; 122, movable rod; 123, movable paddle; 124, connecting rod; 125, sliding block; 126, connecting sleeve; 127, ball; 128, annular frame; 13, central shaft; 131, sliding groove;

[0030] 2, rotating drive; 21, rotating motor;

[0031] 3, descaling assembly; 31, descaling rod; 32, scraper; 33, telescopic drive part;

[0032] 4, sliding drive; 41, screw rod; 42, threaded sleeve; 43, sliding motor;

[0033] 5, kettle body; 6, liquid level sensor. DETAILED DESCRIPTION

[0034] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all the structures.

[0035] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of the present embodiment, the terms "upper", "lower", "right", "left" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0038] It should be noted that the stirring and descaling structure described in the present application is used for, but not limited to, laterite nickel ore and the like exemplified in the background art, and the principle of the stirring and descaling structure applied to other types of product processing is substantially the same as that applied to laterite nickel ore, which will not be described here.

[0039] As shown in Figures 1 to 6 The utility model discloses a stirring and descaling structure, including stirring subassembly 1 and descaling subassembly 3, stirring subassembly 1 includes fixed part 11, movable part 12 and center shaft 13, and fixed part 11 and movable part 12 are connected center shaft 13 and follow center shaft 13 rotation, realize the stirring in the reaction kettle, fixed part 11 is used for stirring material in the kettle body 5 bottom of reaction kettle, and movable part 12 is set up in the upper of fixed part 11 and can move relative to fixed part 11, when movable part 12 moves to the direction close to fixed part 11, the stirring interval of movable part 12 gradually expands, when movable part 12 moves to the direction away from fixed part 11, the stirring interval of movable part 12 gradually narrows, and one end of descaling subassembly 3 is set as descaling end, and the descaling end is used for removing the scale of the inner wall of kettle body 5 of reaction kettle, and the other end of descaling subassembly 3 is connected movable part 12.

[0040] In the present embodiment, please refer to Figures 1 to 3 Stirring subassembly 1 still includes rotation drive piece 2, movable part 12 and fixed part 11 are connected through center shaft 13, the top end of center shaft 13 passes out the kettle body 5 of reaction kettle and is connected with the drive end of rotation drive piece 2, to make rotation drive piece 2 can drive fixed part 11 and movable part 12 on horizontal plane rotation through center shaft 13, and the part of center shaft 13 through the kettle body 5 top of reaction kettle is connected with kettle body 5 rotation through bearing, for rotation drive piece 2 to drive fixed part 11 and movable part 12 synchronous rotation through center shaft 13, realize the stirring of the material in the reaction kettle.

[0041] In the scheme, the stirring assembly 1 has a fixed part 11 and a movable part 12, the fixed part 11 and the movable part 12 can be driven to rotate by the rotating driving member 2, the stirring of the material in the reaction kettle is realized, the movement of the movable part 12 relative to the fixed part 11 is adjusted, the descaling assembly 3 is driven to move up and down in the kettle body 5 of the reaction kettle along with the movement of the movable part 12, the descaling assembly 3 is scraped to move in different positions of the inner wall of the kettle body 5 of the reaction kettle in turn, which is beneficial to prevent the formation of scale layer on the inner wall of the kettle body 5 of the reaction kettle, and at the same time, the descaling assembly 3 can also clean the already generated scale on the inner wall of the kettle body 5 of the reaction kettle in time, and the descaling effect is better; and when the movable part 12 moves towards the fixed part 11, the stirring interval of the movable part 12 gradually expands; when the movable part 12 moves away from the fixed part 11, the stirring interval of the movable part 12 gradually shrinks, so that the stirring is carried out at the same time of descaling, the width and height of the stirring interval of the stirring assembly 1 can change constantly, the rotational flow of different degrees is formed in the reaction kettle, the stirring of the material of different liquid levels can be realized, the scale on the inner wall of the kettle body 5 of the reaction kettle is mixed with the material in time, and the working efficiency in the reaction kettle is improved.

[0042] In the embodiment, please refer to Figures 1 to 3 The rotating driving member 2 includes a rotating motor 21, the rotating motor 21 is installed at the top end of the kettle body 5 of the reaction kettle, the driving end of the rotating motor 21 is connected with the central shaft 13 through a shaft coupling, and the rotating motor 21 can drive the central shaft 13 to rotate.

[0043] In order to realize the deformation of the stirring assembly 1 in height and width, in the embodiment, please refer to Figures 1 to 3 The fixed part 11 includes a fixed sleeve 111, fixed blades 112 and a fixed seat 113, the fixed sleeve 111 is sleeved outside the end of the central shaft 13; a plurality of fixed blades 112 are arranged on the outer side of the fixed sleeve 111 along the circumference of the fixed sleeve 111, when the central shaft 13 is installed in the kettle body 5 of the reaction kettle, the end of the central shaft 13, which is installed with the fixed sleeve 111, is arranged at the bottom of the inner chamber of the kettle body 5 of the reaction kettle, so that the fixed sleeve 111 and the fixed blades 112 are kept at the bottom of the inner chamber of the kettle body 5 of the reaction kettle, thereby stirring the material at the bottom of the kettle body 5 of the reaction kettle.

[0044] The fixed seat 113 is arranged above the fixed sleeve 111, and the fixed seat 113 is fixedly sleeved outside the central shaft 13 and above the fixed sleeve 111; the movable part 12 comprises a movable seat 121 and a movable assembly, the movable seat 121 is slidably sleeved outside the central shaft 13 and above the fixed seat 113; a plurality of movable assemblies are sequentially arranged outside the central shaft 13 along the circumference of the central shaft 13, each movable assembly comprises a movable rod 122, a movable paddle 123 and a connecting rod 124, the movable rod 122, the movable paddle 123 and the connecting rod 124 are arranged in equal number and one-to-one correspondence, a plurality of connecting rods 124 are sequentially arranged outside the movable seat 121 along the circumference of the movable seat 121, a plurality of movable rods 122 are sequentially arranged outside the fixed seat 113 along the circumference of the fixed seat 113, the two ends of the connecting rod 124 are respectively rotationally connected with the movable seat 121 and the movable rod 122 through a hinge seat, one end of the movable rod 122 is rotationally connected with the fixed seat 113 in the vertical plane, the other end of the movable rod 122 is fixedly connected with the movable paddle 123, so as to be driven by the up-down movement of the movable seat 121, transmitted to the movable rod 122 through the connecting rod 124, and drive the movable rod 122 to swing around the fixed seat 113 in the vertical plane.

[0045] When the movable seat 121 moves downward, the outer end of the movable rod 122 driven by the movable seat 121 rotates downward, the distance between each movable paddle 123 gradually increases, the stirring interval gradually expands, and at the same time, the movable paddle 123 moves downward; when the movable seat 121 moves upward, the outer end of the movable rod 122 driven by the movable seat 121 rotates upward, the distance between each movable paddle 123 gradually decreases, the stirring interval gradually shrinks, and at the same time, the movable paddle 123 moves upward; in implementation, the height of the movable paddle 123 can be adjusted according to the liquid level in the kettle body 5 of the reaction kettle, so as to adapt to different liquid levels and make the stirring more sufficient.

[0046] In the rotation stroke of the movable rod 122, when the included angle between the movable rod 122 and the central shaft 13 is less than 30°, the movable rod 122 drives the movable paddle 123 to move to the highest position, at which time the stirring interval is the smallest; when the movable rod 122 rotates to the horizontal state, the movable rod 122 drives the movable paddle 123 to rotate to the lowest position, at which time the stirring interval is the largest; in order to realize the rotation limiting and fixing of the movable rod 122, a limiting plate is arranged below the fixed seat 113, and limiting blocks are arranged at positions corresponding to the movable rod 122 on the limiting plate, so that when the movable rod 122 rotates to the horizontal state, the bottom surface of the movable rod 122 contacts the limiting blocks, and the movable rod 122 cannot continue to rotate downward.

[0047] Specifically, the movable paddle 123 is in arc structure, the paddles of the fixed part 11 and the movable part 12 are three-leaf or four-leaf, and the inclination angle of the paddle is between 12° and 42°.

[0048] Further, in some embodiments, referring to Figure 1 and Figure 4 , the central shaft 13 is provided with a sliding groove 131 on both sides thereof extending along the sliding direction of the movable seat 121, and the inner side of the movable seat 121 is provided with two sliding blocks 125 corresponding to the positions of the sliding grooves 131, the sliding blocks 125 are built in the sliding grooves 131 and are connected with the sliding grooves 131 in sliding connection, and when the movable seat 121 slides up and down on the outer side of the central shaft 13, the sliding blocks 125 slide in the sliding grooves 131 correspondingly, so as to improve the stability of the movable seat 121 during movement.

[0049] It can be understood that the movable part 12 is arranged above the fixed part 11 and can move relative to the fixed part 11 to realize the up-and-down movement in the kettle body 5 of the reaction kettle, and at the same time, the up-and-down movement can be used to adjust the width and height of the stirring assembly 1. In order to realize the adjustment of the movable part 12, in the embodiment, the stirring and descaling structure is further provided with a sliding driving member 4 connected with the movable part 12 to drive the movable part 12 to slide relative to the fixed part 11.

[0050] In one of the embodiments, referring to Figures 1 to 3 , the sliding driving member 4 comprises a screw rod 41, a threaded sleeve 42 and a sliding motor 43. The screw rod 41 is arranged on one side of the stirring assembly 1, the length direction of the screw rod 41 is parallel to the movement direction of the movable part 12, the screw rod 41 is arranged in parallel with the central shaft 13, and the screw rod 41 is rotatably connected with the top wall of the kettle body 5 of the reaction kettle through a bearing. The threaded sleeve 42 is sleeved on the outer side of the screw rod 41 and is threadedly connected with the screw rod 41, one side of the threaded sleeve 42 abuts against the movable part 12 along the sliding direction. The top end of the screw rod 41 penetrates through the kettle body 5 of the reaction kettle and is connected with the driving end of the sliding motor 43, and the sliding motor 43 is fixedly installed on the top of the kettle body 5 of the reaction kettle, and the driving end thereof is connected with the screw rod 41 through a shaft coupling to drive the screw rod 41 to rotate and drive the threaded sleeve 42 to move along the length direction of the screw rod 41. One side of the threaded sleeve 42 is connected with the movable seat 121, so as to drive the movable seat 121 to move up and down and realize the deformation adjustment of the stirring assembly 1.

[0051] It should be noted that in other embodiments, the specific form of the sliding driving member 4 is not limited to this, and can also be other driving structures capable of driving the movable seat 121 to move up and down, such as air cylinders, telescopic rods or screw rod elevators, etc.

[0052] Since the movable seat 121 is in a rotating state during the stirring work of the stirring assembly 1, in order to prevent the movable seat 121 from driving the sliding driving member 4 to deflect and ensure the stability of the sliding driving member 4, in the embodiment, referring to Figures 1 to 3 , Figure 5The top end of the movable seat 121 is rotationally connected with a connecting sleeve 126, the threaded sleeve 42 is connected with the connecting sleeve 126, the connection of the sliding driving part 4 and the movable seat 121 is realized, specifically, an annular groove is formed in the inner side of the connecting sleeve 126, a plurality of ball bearings 127 are arranged on the top wall and the bottom wall of the annular groove, the plurality of ball bearings 127 are arranged in an annular array mode with the center axis of the central shaft 13 as a reference; the top of the movable seat 121 is fixedly provided with an annular frame 128 which is rotationally connected with the annular groove, the annular frame 128 is integrally formed with the movable frame, the annular frame 128 is movably clamped between the plurality of ball bearings 127, so that the annular frame 128 can rotate in the annular groove and the support of the annular frame 128 is realized through the ball bearings 127, when the annular frame 128 rotates, the ball bearings 127 correspondingly rotate, so as to reduce the friction when the annular frame 128 moves, and the transmission is more stable.

[0053] In order to scrape the dirt on the inner wall of the kettle body 5 of the reaction kettle, in the embodiment, referring to Figures 1 to 3 , the dirt removal assembly 3 comprises a dirt removal rod 31 and a scraper 32, the two ends of the dirt removal rod 31 are connected with the scraper 32 and the movable seat 121 respectively, the scraper 32 abuts against the inner wall of the kettle body 5 of the reaction kettle, and the scraper 32 can drive the dirt removal rod 31 and the scraper 32 to move up and down through the sliding of the movable seat 121 to scrape the dirt on the inner wall of the kettle body 5 of the reaction kettle. The stirring assembly 1 and the dirt removal assembly 3 are arranged staggered, that is, the dirt removal rod 31 and the movable rod 122 are arranged staggered. Exemplarily, if the dirt removal assembly 3 can be directly connected with the movable seat 121, not only the dirt removal assembly 3 can scrape the dirt up and down along with the up and down movement of the movable seat 121, but also the movable seat 121 can be rotated due to the rotation of the central shaft 13, that is, the scraper 32 rotates on the inner wall of the kettle body 5 of the reaction kettle, and the scraper 32 simultaneously performs the planar rotation and the up and down sliding movement, so that the dirt on the inner wall of the kettle body 5 of the reaction kettle can be scraped without dead angle.

[0054] Further, in order to strengthen the structural strength of the dirt removal assembly 3 and prolong the service life of the dirt removal assembly 3, the two ends of the dirt removal rod 31 are connected with the scraper 32 and the connecting sleeve 126 respectively, when the movable seat 121 rotates, the connecting sleeve 126 will not be rotated, and when the movable seat 121 moves, only the scraper 32 is driven by the connecting sleeve 126 to move up and down in the kettle body 5 of the reaction kettle to scrape the dirt on the inner wall of the kettle body 5 of the reaction kettle.

[0055] The utility model discloses still disclose a kind of reaction kettle, including above-mentioned stirring and scraping structure and kettle body 5, part of central shaft 13, fixed part 11 and movable part 12 are placed in kettle body 5, central shaft 13 is rotationally installed at the top of kettle body 5, dirt removal assembly 3 and the inner wall of kettle body 5 are kept abut, dirt in kettle body 5 inner wall can be mixed with material in time, it is favorable to improve the operation efficiency of reaction kettle.

[0056] Since the scraper 32 is used to scrape the inner wall of the kettle body 5 of the reaction kettle by up-down movement, the kettle body 5 of the reaction kettle should be preferably selected as a cylindrical or cubic structure, please refer to Figure 6 , the inner side of which is a vertical arc surface or a vertical plane, so that the scraper 32 can contact the inner wall of the kettle body 5 of the reaction kettle by up-down translation movement to achieve scraping. Of course, the scraping assembly 3 can also be adapted to the horizontal reaction kettle body structure. In order to adapt to the case that the distance between the central shaft 13 and the inner wall of the kettle body 5 of the reaction kettle in the height direction is not equal, a middle part of the scraping rod 31 can be replaced by a telescopic driving part 33 which can be extended or shortened, so that the scraper 32 can contact the irregular inner wall of the kettle body 5 of the reaction kettle. For example, in the present embodiment, please refer to Figures 1 to 3 , the kettle body 5 is a horizontal kettle body. At this time, the scraping assembly 3 is provided with at least four, corresponding to the four faces of a chamber. The scraping assembly 3 includes the scraper 32 and the scraping rod 31. The four scraping rods 31 are selectively provided with the telescopic driving part 33. The scraper 32 corresponding to the inner partition plate of the kettle body 5 of the reaction kettle is connected to the connecting sleeve 126 by the scraping rod 31 with a fixed length and cannot be extended. The scraper 32 corresponding to the inner wall of the kettle body 5 of the reaction kettle is connected to the connecting sleeve 126 by the scraping rod 31 with the telescopic driving part 33. It should be noted that the telescopic driving part 33 can be a pneumatic cylinder, a telescopic rod, etc.

[0057] Further, in some embodiments, a liquid level sensor 6 is also installed at the top of the kettle body 5. The liquid level sensor 6 is electrically connected to the sliding motor 43 of the sliding driving part 4 through a sensor, and can drive the sliding motor 43 according to the liquid level. Among them, the liquid level sensor 6 is preferably an ultrasonic liquid level sensor 6 which measures the liquid level by emitting ultrasonic waves and detecting the reflected signals. According to the flight time and speed of the ultrasonic waves, the liquid level height of the material in the kettle body 5 can be calculated.

[0058] The working principle of the reaction kettle is as follows: in implementation, the liquid level in the kettle body 5 is detected by the liquid level sensor 6, and the sliding motor 43 is driven according to the liquid level, when the liquid level drops below the movable paddle 123, the movable seat 121 is driven to move downward by the sliding motor 43, the threaded sleeve 42 and the screw rod 41, the outer end of the movable rod 122 driven by the connecting rod 124 is rotated downward, the distance between each movable paddle 123 is gradually increased, the stirring interval is gradually expanded, and the movable paddle 123 moves downward; when the liquid level rises, the movable seat 121 can be driven to move upward by the sliding motor 43, the threaded sleeve 42 and the screw rod 41, the outer end of the movable rod 122 driven by the connecting rod 124 is rotated upward, the distance between each movable paddle 123 is gradually reduced, the stirring interval is gradually reduced, and the movable paddle 123 moves upward, so that it can adapt to different liquid levels and stirring is more sufficient; when the movable seat 121 moves up and down, the scraper 32 can move up and down in the kettle body 5 synchronously, and can scrape the inner wall of the kettle body 5 when moving, which is beneficial to prevent the formation of scale layer on the inner wall of the kettle body 5 of the reaction kettle, and can also scrape the formed scale on the inner wall.

[0059] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not limited to the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A stirring and descaling structure, characterized in that, include: A stirring assembly (1) includes a fixed part (11), a movable part (12), and a central shaft (13). The fixed part (11) and the movable part (12) are fixed on the central shaft (13), and the central shaft (13) is rotatable. The fixed part (11) is used to stir materials at the bottom of the reactor body (5). The movable part (12) is located above the fixed part (11) and can move relative to the fixed part (11). When the movable part (12) moves towards the fixed part (11), the stirring range of the movable part (12) gradually expands; when the movable part (12) moves away from the fixed part (11), the stirring range of the movable part (12) gradually shrinks. The descaling component (3) has one end configured as a descaling end, which is used to remove scale buildup on the inner wall of the reactor body (5). The other end of the descaling component (3) is connected to the movable part (12).

2. The stirring descaling structure according to claim 1, characterized in that, The stirring and descaling structure also includes a rotating drive (2), the top end of the central shaft (13) extends through the reactor body (5) and is connected to the drive end of the rotating drive (2), so that the rotating drive (2) can drive the fixed part (11) and the movable part (12) to rotate on the horizontal plane through the central shaft (13).

3. The stirring descaling structure according to claim 1, characterized in that, The fixing part (11) includes a fixing sleeve (111) and a fixing blade (112). The fixing sleeve (111) is fixedly sleeved on the outside of the end of the central shaft (13). A plurality of fixing blades (112) are arranged sequentially on the outside of the fixing sleeve (111) along the circumference of the fixing sleeve (111).

4. The stirring descaling structure according to claim 1, characterized in that, The fixed part (11) includes a fixed seat (113), which is sleeved on the outside of the central shaft (13); the movable part (12) includes a movable seat (121) and a movable component, which is slidably sleeved on the outside of the central shaft (13) and located above the fixed seat (113); a plurality of movable components are arranged sequentially along the circumference of the central shaft (13) on the outside of the central shaft (13), and the movable component includes a movable rod (122), a movable blade (123), and a connecting rod (124), and the movable seat... A plurality of connecting rods (124) are arranged sequentially along the circumference of the movable seat (121) on the outer side of (121), and a plurality of movable rods (122) are arranged sequentially along the circumference of the fixed seat (113) on the outer side of the fixed seat (113). The two ends of the connecting rod (124) are rotatably connected to the movable seat (121) and the movable rod (122) respectively through hinge seats. One end of the movable rod (122) is rotatably connected to the fixed seat (113) on the vertical plane, and the other end of the movable rod (122) is fixedly connected to the movable blade (123).

5. The stirring descaling structure according to claim 4, characterized in that, Both sides of the central shaft (13) are provided with slide grooves (131) extending along the sliding direction of the movable seat (121). The inner side of the movable seat (121) is provided with two sliders (125) corresponding to the positions of the slide grooves (131). The sliders (125) are built into the slide grooves (131) and are slidably connected to the slide grooves (131).

6. The stirring descaling structure according to claim 4, characterized in that, The stirring and descaling structure also includes a sliding drive (4), which is connected to the movable seat (121) and can drive the movable seat (121) to move relative to the fixed seat (113).

7. The stirring descaling structure according to claim 6, characterized in that, The sliding drive component (4) includes a screw (41), a threaded sleeve (42), and a sliding motor (43). The screw (41) is disposed on one side of the stirring assembly (1). The length direction of the screw (41) is parallel to the sliding direction of the movable seat (121). The threaded sleeve (42) is sleeved on the outside of the screw (41) and threadedly connected to the screw (41). The threaded sleeve (42) abuts against the movable seat (121) along the sliding direction. The top end of the screw (41) passes through the reactor body (5) and is connected to the drive end of the sliding motor (43). The sliding drive component (4) can drive the screw (41) to rotate and drive the threaded sleeve (42) to move along the length direction of the screw (41) so that the movable seat (121) slides.

8. The stirring descaling structure according to claim 6, characterized in that, A connecting sleeve (126) is rotatably provided at the top of the movable seat (121), and the sliding drive (4) is connected to the connecting sleeve (126). An annular groove is provided on the inner side of the connecting sleeve (126), and a number of balls (127) are provided on the top and bottom walls of the annular groove. The balls (127) are arranged in an annular array with the central axis of the central shaft (13) as a reference. An annular frame (128) is fixedly provided at the top of the movable seat (121) and rotatably connected to the annular groove. The annular frame (128) is movably clamped between the balls (127), so that the annular frame (128) can rotate in the annular groove.

9. The stirring descaling structure according to claim 4, characterized in that, The descaling component (3) includes a descaling rod (31) and a scraper (32). The two ends of the descaling rod (31) are respectively connected to the scraper (32) and the movable seat (121). The scraper (32) abuts against the inner wall of the reactor body (5) and the scraper (32) can scrape the inner wall of the reactor body (5) by sliding the movable seat (121).

10. A reaction vessel, characterized in that, Includes a vessel body (5) and a stirring descaling structure as described in any one of claims 1-9, wherein the descaling component (3) abuts against the inner wall of the vessel body (5), a portion of the central shaft (13), the fixed part (11) and the movable part (12) are all disposed inside the vessel body (5), and the central shaft (13) is rotatably disposed on the top of the vessel body (5).

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