CN115301129B

CN115301129B - High-efficient mixing stirring equipment of sodium borohydride

Info

Publication number: CN115301129B
Application number: CN202211244603.7A
Authority: CN
Inventors: 钱烽; 刘维波
Original assignee: Jiangsu Acer Zixin Energy Technology Co ltd
Current assignee: Jiangsu Acer Zixin Energy Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2022-12-20
Anticipated expiration: 2042-10-12
Also published as: CN115301129A

Abstract

The invention relates to the technical field of mixing and stirring devices, in particular to efficient mixing and stirring equipment for sodium borohydride. The utility model provides a high-efficient agitated vessel that mixes of sodium borohydride includes the churn, be provided with the cylindrical stirring chamber that is used for loading the raw materials in the churn, the both ends in stirring chamber are first end and second end respectively, stirring intracavity fixed mounting has the back shaft, the outside cover of back shaft is equipped with a plurality of sleeves, a plurality of impeller, first drive division and second drive division, through setting up the sleeve, the first drive division that uses with the sleeve cooperation, and the second drive division that uses with the impeller cooperation, it changes the stirring position along with the transfer of stirring intracavity raw materials to realize impeller at churn pivoted in-process, the realization is to the homogeneous mixing stirring of the raw materials of stirring intracavity, it is effectual to mix.

Description

High-efficient mixing stirring equipment of sodium borohydride

Technical Field

The invention relates to the technical field of mixing and stirring devices, in particular to efficient mixing and stirring equipment for sodium borohydride.

Background

Sodium borohydride is an inorganic compound of the formula NaBH ₄ White to off-white crystalline powders, which are strongly hygroscopic and whose alkaline solutions are brownish yellow, are among the most commonly used reducing agents. Is soluble in water, liquid ammonia and amine, is soluble in methanol, is slightly soluble in ethanol and tetrahydrofuran, and is insoluble in diethyl ether, benzene and hydrocarbon. Is stable in dry air, and can be decomposed in wet air, and also can be decomposed under 500 deg.C heating. The preparation of sodium borohydride comprises the steps of raw material mixing, raw material extraction, water-liquid phase separation, mother liquor extraction and the like. The required raw materials include boric acid and methanol, and the utility model with the publication number of CN111137861A provides a preparation process of sodium borohydride.

The stirring effect of current mixing stirring device to the raw materials is abundant inadequately, and current agitating unit amplitude of movement is less, and the amplitude of movement of raw materials in the agitator is not big, and the distribution condition of raw materials in the churn is different, and the stirring effect that receives is also different, can cause the inhomogeneous of stirring, influences the result of use.

Disclosure of Invention

The invention provides efficient mixing and stirring equipment for sodium borohydride, which aims to solve the problem that the existing mixing and stirring equipment is poor in mixing effect due to uneven mixing.

The invention relates to a sodium borohydride high-efficiency mixing and stirring device, which adopts the following technical scheme:

a high-efficiency mixing and stirring device for sodium borohydride comprises a stirring drum, wherein the stirring drum is rotatably arranged around a horizontal reference axis, and the horizontal reference axis is vertical to the axis of the stirring drum; be provided with the columnar stirring chamber that is used for filling the raw materials in the churn, the raw materials is not full of the stirring chamber when filling in the stirring intracavity, the both ends in stirring chamber are first end and second end respectively, the axis in stirring chamber is in on the vertical direction under the initial condition, the first end in second end top in stirring chamber, stirring intracavity fixed mounting has the back shaft, back shaft and the coaxial setting in stirring chamber, the outside cover of back shaft is equipped with a plurality of sleeves, telescopic quantity is for being greater than 1 odd number a plurality of, equal interval distribution between a plurality of sleeves, and every sleeve sets up along the axial slidable ground of back shaft, sleeve in the middle of using is first sleeve, all the other sleeves are the second sleeve, a plurality of sleeves evenly distributed in the raw materials under the initial condition.

The first driving part is used for enabling the sleeves to synchronously move towards the first end part of the stirring cavity at a constant speed when the first end part of the stirring cavity rotates from high to low, enabling the sleeves to synchronously move towards the second end part at a constant speed when the first end part of the stirring cavity rotates from low to high, and enabling the first sleeve to be located in the middle of the stirring cavity when the stirring cylinder is in a horizontal state.

A plurality of stirring impeller are arranged in the stirring cavity, the middle part of each stirring impeller is provided with a lantern ring, each stirring impeller is sleeved outside a sleeve through the lantern ring, and a plurality of stirring impeller are uniformly distributed in the raw materials in the initial state.

The second driving part is used for driving the stirring impellers to synchronously rotate around the axis of the supporting shaft at a constant speed along the first direction in the process that the stirring barrel rotates from the vertical state to the horizontal state, the stirring impellers sleeved on the second sleeve can be far away from the stirring impeller sleeved on the first sleeve when rotating along the first direction, and the stirring impellers are uniformly distributed in the stirring cavity until the stirring barrel rotates to the horizontal state; when the mixing drum rotates to the vertical state from the horizontal state, the second driving part drives the plurality of stirring impellers to synchronously rotate around the axis of the supporting shaft along the second direction at a constant speed, the stirring impellers sleeved on the second sleeve can be close to each other relative to the stirring impeller sleeved on the first sleeve when rotating along the second direction, and the plurality of stirring impellers reset relative to the sleeve until the mixing drum rotates to the vertical state, so that the plurality of stirring impellers are still uniformly distributed in the raw material.

Furthermore, an annular groove is formed in the outer peripheral wall of the first sleeve, and a lantern ring of the stirring impeller sleeved on the first sleeve is rotatably arranged along the annular groove; the second sleeve is provided with spiral grooves, the spiral directions of the spiral grooves on the two second sleeves which are symmetrical relative to the first sleeve are opposite, and a sliding block is arranged on a sleeve ring of the stirring impeller sleeved on the second sleeve and can be arranged in a sliding mode along the spiral grooves.

Further, the first driving part comprises a driving shaft, a first driving ring and a first transmission assembly; the driving shaft and the stirring cavity are coaxially arranged and can be arranged in a sliding manner along the axial direction of the stirring cavity, one end of the driving shaft penetrates through the stirring cavity, the other end of the driving shaft is positioned at the outer side of the stirring cylinder, and the sleeve positioned at the bottom in an initial state is connected with the driving shaft; the first drive is rotatably disposed about the horizontal reference axis, and the first transmission assembly is configured to convert rotation of the first drive about the horizontal reference axis into sliding movement of the drive shaft in an axial direction of the stir chamber.

Furthermore, an installation cavity is arranged in the mixing drum, the installation cavity is positioned below the mixing cavity in an initial state, the driving shaft penetrates through the installation cavity, an induction plate is arranged between the installation cavity and the mixing cavity, and the induction plate is in sealing sliding fit with the inner peripheral wall of the mixing drum; telescopic sleeves are connected between two adjacent sleeves and between the sleeve at the bottom in the initial state and the driving shaft, and are arranged in a telescopic manner along the axial direction of the supporting shaft; a plurality of hydraulic rods are arranged in the installation cavity, each hydraulic rod corresponds to one sleeve, one end of each hydraulic rod is fixedly connected to the induction plate, the other end of each hydraulic rod is connected to the bottom wall of the installation cavity, each hydraulic rod is connected with one telescopic sleeve through a connecting pipe, and the hydraulic rods, the telescopic sleeves and the connecting pipes are filled with liquid; the elastic part is arranged in the mounting cavity, one end of the elastic part is fixedly connected to the induction plate, the other end of the elastic part is connected to the bottom wall of the mounting cavity, the induction plate is downwards jacked when raw materials enter the stirring cavity, the induction plate downwards jacks the elastic part and the hydraulic rod, when the pressure applied to the elastic part reaches a preset value, the elastic part starts to contract, so that the hydraulic rod starts to compress, the compression amount of the hydraulic rod is in proportion to the mass of the raw materials in the stirring cavity, when the hydraulic rod compresses, liquid enters the telescopic sleeve through the connecting pipe, so that the telescopic sleeve extends, and a plurality of sleeves are pushed to be uniformly distributed in the raw materials; the efficient mixing and stirring equipment for sodium borohydride further comprises a limiting assembly, and the limiting assembly is used for limiting the movement of the induction plate after the induction plate moves downwards relative to the stirring cylinder.

Furthermore, the efficient mixing and stirring equipment for sodium borohydride further comprises a supporting seat and a power mechanism, the supporting seat is fixed on the ground, the power mechanism comprises a driving motor and a supporting frame, the driving motor is installed on the supporting frame, the axis of the output shaft of the driving motor is located on the horizontal reference axis, the distances from the first end part and the second end part of the stirring cavity to the output shaft of the driving motor are the same, the supporting frame is fixedly installed on the outer side of the stirring cylinder and is fixedly connected with the output shaft of the driving motor, and the driving motor is started to drive the stirring cylinder to rotate around the horizontal reference axis through the output shaft and the supporting frame.

Further, the second driving part comprises a driving strip, a second driving ring and a second transmission assembly; a rotating ring is arranged on the outer side of the stirring cylinder, the rotating ring is rotatably arranged around the axis of the stirring cavity, a driving strip is arranged on the rotating ring, one end of the driving strip is fixedly connected with the rotating ring, the other end of the driving strip is inserted into the sealing cavity and the stirring cavity, a sealing ring is fixedly connected on the driving strip, and the sealing ring is rotatably arranged on the induction plate along the rotating track of the driving strip and is used for sealing the induction plate; the driving strip is provided with a sliding chute with an opening facing to the axis of the stirring cavity, the sliding chute extends along the extension direction of the driving strip, each stirring impeller is provided with a sliding block, and the sliding block is arranged along the sliding chute in a sliding manner; the second drive is rotatably disposed about the horizontal reference axis, and the second transmission assembly is configured to convert rotation of the second drive about the horizontal reference axis into rotation about an axis of the stir chamber.

Further, the first driving ring and the second driving ring are both bevel gears, and both the first driving ring and the second driving ring are sleeved outside the output shaft of the driving motor and are rotatably arranged relative to the output shaft of the driving motor; the first driving ring can rotate forwards and backwards, the first driving ring rotates forwards when the first end of the stirring cavity rotates from high to low, and the first driving ring rotates backwards when the second end of the stirring cavity rotates from high to low; the first transmission assembly comprises a first driven bevel gear, a first transmission rod, a first chain wheel and a first transmission belt; the first driven bevel gear is meshed with the first driving ring; the first transmission rod is arranged in parallel with the driving shaft, and the first driven bevel gear transmits rotation to the first transmission rod when rotating; the first chain wheel is sleeved on the outer side of the driving shaft; the first transmission belt is sleeved on the first transmission rod and the first chain wheel, and the first transmission rod rotates to drive the driving shaft to move along the axial direction of the stirring cavity through the rotation of the first transmission belt and the first chain wheel.

Further, the second driving ring can rotate forwards and backwards, the second driving ring rotates forwards when the mixing drum rotates from the vertical state to the horizontal state, and rotates backwards when the mixing drum rotates from the horizontal state to the vertical state, and the second transmission assembly comprises a second driven bevel gear, a second transmission rod, a second transmission belt and a second chain wheel; the second driven bevel gear is meshed with the second driving ring; the second transmission rod is arranged in parallel with the driving shaft, and the second driven bevel gear transmits rotation to the second transmission rod when rotating; the second chain wheel is installed in the rotating ring, the second transmission rod and the second chain wheel are arranged on the second transmission belt in a sleeved mode, and the second transmission rod rotates around the axis of the stirring cavity through the second transmission belt and the second chain wheel in a driving mode.

Further, the efficient mixing and stirring equipment for the sodium borohydride also comprises a gearbox and a hydraulic adjusting mechanism; the gearbox is installed on the carriage, be used for adjusting the drive ratio of first driven bevel gear and first drive lever, and be used for adjusting second drive lever and second driven bevel gear's drive ratio, first driven bevel gear and second driven bevel gear all rotate and install on the box of gearbox, hydraulic pressure guiding mechanism includes two pneumatic cylinders, two pneumatic cylinders set up in the installation cavity, two pneumatic cylinders compress when the tablet descends, the compression of every pneumatic cylinder is transferred to in the gearbox, make the drive ratio of first driven bevel gear and first drive lever and the drive ratio of second driven bevel gear and second drive lever reduce, the pneumatic cylinder compression is more, the drive ratio of first driven bevel gear and first drive lever is littleer, the drive ratio of second driven bevel gear and second drive lever is littleer.

Further, spacing subassembly includes two ratchet plates, and two ratchet plates are fixed mounting respectively in the diapire of tablet and installation cavity, and two ratchet plates arrange into and only can be close to each other, can not keep away from each other.

The beneficial effects of the invention are: the efficient mixing and stirring equipment for sodium borohydride is provided with the rotatable stirring cylinder, the raw materials filled into the stirring cavity are shaken, the mixing effect of the raw materials is improved, and the raw materials in the stirring cavity are stirred by the stirring impeller. Through setting up the sleeve, the first drive division that uses with the sleeve cooperation to and the second drive division that uses with the impeller cooperation, realize impeller and change the stirring position along with the shift of stirring intracavity raw materials at churn pivoted in-process, realize the homogeneous mixing stirring to the raw materials of stirring intracavity, mix effectually.

Furtherly, through setting up tablet, hydraulic stem, flexible cover, can adjust a plurality of telescopic initial position according to the quality that gets into stirring intracavity material for no matter how much the raw materials has, a plurality of sleeve homoenergetic are at raw materials evenly distributed, with the accuracy of increase impeller shift position.

Through setting up gearbox and hydraulic pressure guiding mechanism, can the raw materials of different masses of adaptation. Since the mass of the raw material fed each time may be different, the positions of the plurality of sleeves in the initial state are different, the amount of movement of the sleeves each time is different, and the movement distance of the sleeves is adaptively changed according to the mass of the raw material through adjustment of the gearbox. Similarly, the rotating amplitude of the stirring impeller is different when the mass of the raw materials is different every time, and the rotating amplitude of the stirring impeller is adaptively changed according to the mass of the raw materials through the adjustment of the gearbox, so that the working accuracy of the device is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of an efficient mixing and stirring apparatus for sodium borohydride according to the present invention;

FIG. 2 is a side view of an embodiment of the sodium borohydride high-efficiency mixing and stirring device of the present invention;

FIG. 3 is a schematic structural diagram of a mixing drum and a supporting frame of the efficient mixing and stirring equipment for sodium borohydride of the present invention;

FIG. 4 is a partial sectional view of the mixing drum and the internal structure of the efficient mixing and stirring equipment for sodium borohydride of the present invention;

FIG. 5 is a schematic view of a partial structure of a mixing drum and a driving shaft of an efficient mixing and stirring device for sodium borohydride according to the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

FIG. 7 is a schematic structural diagram of a stirring impeller of the efficient mixing and stirring device for sodium borohydride of the present invention;

FIG. 8 is an exploded view of the stirring impeller, the sleeve and the telescopic sleeve of the efficient mixing and stirring device for sodium borohydride of the present invention;

FIG. 9 is a schematic structural view of the inside of an installation cavity of the efficient mixing and stirring device for sodium borohydride according to the present invention;

FIG. 10 is a drawing showing the mixing impeller, the supporting shaft and the driving shaft of the sodium borohydride efficient mixing and stirring apparatus according to the present invention;

FIG. 11 is an enlarged view of FIG. 10 at B;

fig. 12 is a schematic partial structural view of a first driving part and a second driving part of the efficient mixing and stirring device for sodium borohydride according to the present invention.

In the figure: 110. a supporting seat; 120. a support frame; 130. a mixing drum; 131. a carrier plate; 132. a connecting rod; 133. an extension plate; 134. a limiting plate; 140. a feed inlet; 150. an output shaft; 161. a first drive ring; 162. a second drive ring; 163. a first driven bevel gear; 164. a second driven bevel gear; 165. a first transmission lever; 166. a second transmission rod; 167. a first drive belt; 168. a second belt; 170. a gearbox; 180. a rotating ring; 181. a second sprocket; 190. a drive shaft; 210. a first sprocket; 220. a support shaft; 230. a stirring impeller; 231. a collar; 240. an induction plate; 241. pushing the plate; 242. a base plate; 250. a hydraulic cylinder; 260. a sleeve; 261. a telescopic sleeve; 270. a hydraulic lever; 280. a limiting component; 290. a drive bar; 291. a slider; 292. and (4) a sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

As shown in fig. 1 to 12, an embodiment of a high-efficiency mixing and stirring apparatus for sodium borohydride according to the present invention includes a stirring cylinder 130, a first driving portion and a second driving portion. The mixing drum 130 is rotatably disposed about a horizontal reference axis that is perpendicular to the axis of the mixing drum 130. Be provided with the columnar stirring chamber that is used for filling the raw materials in churn 130, the stirring chamber is not totally filled with when the raw materials is filled in the stirring chamber, and the both ends in stirring chamber are first end and second end respectively, and the axis in stirring chamber is in the vertical direction under the initial condition, and the first end in stirring chamber is in the top of second end. Specifically, the first end of the stirring chamber is provided with a feed port 140, the raw material enters from the feed port 140, a blocking plate capable of opening and closing the feed port 140 is arranged at the feed port 140, and the blocking plate is closed after the raw material is filled in the stirring chamber. Fixed mounting has support shaft 220 in the stirring chamber, support shaft 220 and the coaxial setting in stirring chamber, the outside cover of support shaft 220 is equipped with a plurality of sleeves 260, the quantity of sleeve 260 is for being greater than 1 odd number, equal interval distribution between a plurality of sleeves 260, and every sleeve 260 sets up along the axial slidable of support shaft 220, a plurality of sleeves 260 evenly distributed in the raw materials that is in the stirring intracavity under the initial condition, because the raw materials that throws into the stirring intracavity under the initial condition gathers in the second tip in stirring chamber, so a plurality of sleeves 260 are located the first end in stirring chamber, specifically, in this embodiment, the quantity of sleeve 260 is three.

The first driving portion is used for enabling the three sleeves 260 to synchronously move towards the first end portion of the stirring cavity at a constant speed in the process that the first end portion of the stirring cavity rotates from high to low when the stirring cylinder 130 rotates, enabling the three sleeves 260 to synchronously move towards the second end portion in the process that the first end portion of the stirring cavity rotates from low to high, and enabling the first sleeves 260 to be located in the middle of the stirring cavity when the stirring cylinder 130 is in a horizontal state.

A plurality of stirring impellers 230 are arranged in the stirring cavity, a lantern ring 231 is arranged in the middle of each stirring impeller 230, each stirring impeller 230 is sleeved outside one sleeve 260 through the lantern ring 231, the stirring impellers 230 are uniformly distributed in the raw material in an initial state, and therefore the lantern ring 231 is arranged in the middle of the corresponding sleeve 260.

The second driving part is used for driving the stirring impellers 230 to synchronously rotate around the axis of the supporting shaft 220 at a constant speed along a first direction in the process that the stirring cylinder 130 rotates from a vertical state to a horizontal state, the sleeve 260 in the middle of the three sleeves is used as a first sleeve, the other sleeves 260 are used as second sleeves, and the two stirring impellers 230 sleeved on the second sleeves are far away from each other relative to the stirring impellers 230 sleeved on the first sleeve when rotating along the first direction until the stirring cylinder 130 rotates to the horizontal state, and the three stirring impellers 230 are uniformly distributed in the stirring cavity. When the mixing drum 130 is in a horizontal state, the raw materials in the mixing cavity are uniformly distributed, so that the distribution of the three mixing impellers 230 is matched with the distribution of the raw materials. When the mixing drum 130 rotates from the horizontal state to the vertical state, the second driving part drives the plurality of mixing impellers 230 to synchronously rotate around the axis of the support shaft 220 along the second direction at a constant speed, when the mixing impellers 230 sleeved on the second sleeve rotate along the second direction, the mixing impellers 230 sleeved on the first sleeve are close to each other relative to the mixing impellers 230 sleeved on the first sleeve, and until the mixing drum 130 rotates to the vertical state, the plurality of mixing impellers 230 are reset relative to the corresponding sleeves 260, so that the plurality of mixing impellers 230 are still uniformly distributed in the raw material, and the raw material is uniformly mixed. Specifically, the second direction is a direction opposite to the first direction.

Taking the clockwise rotation of the mixing drum 130 around the reference horizontal axis as an example, the rotation of the mixing drum 130 is divided into four stages, which are a first stage, a second stage, a third stage and a fourth stage, respectively. The first stage is as follows: the mixing drum 130 starts to rotate to a horizontal state from the position right above the second end part of the mixing cavity from the first end part of the mixing cavity, in the process, the first end part of the mixing cavity moves from high to low, the raw material in the mixing cavity also transfers from the second end part of the mixing cavity to the first end part of the mixing cavity (the friction between the raw material and the cavity wall of the mixing cavity is ignored), the three sleeves 260 synchronously move to the first end part of the mixing cavity, when the mixing drum 130 is in the horizontal state, the raw material is uniformly distributed in the mixing cavity, at the moment, the three sleeves 260 are located in the middle of the mixing cavity together, the plurality of mixing impellers 230 are uniformly distributed in the mixing cavity, that is, the plurality of mixing impellers 230 are uniformly distributed in the raw material, and the positions of the mixing impellers 230 are constantly adjusted along with the transfer positions of the raw material in the first stage, so that the raw material is uniformly mixed.

The second stage is as follows: the mixing drum 130 rotates from the horizontal state to the process that the first end is located right below, in this process, the first end of the mixing cavity further moves from high to low, the raw material in the mixing cavity gradually gathers from the state of being uniformly distributed in the mixing cavity to the first end of the mixing cavity, and the three sleeves 260 continue to move close to the first end of the mixing cavity until the three sleeves 260 are uniformly distributed in the raw material again when the first end of the mixing cavity is located right below. Since the plurality of stirring impellers 230 rotate in the second direction in this process, the plurality of stirring impellers 230 are reset with respect to the corresponding sleeves 260. That is to say, at this time, the three sleeves 260 and the three stirring impellers 230 are uniformly distributed in the raw material, so as to uniformly stir the raw material.

The third stage is as follows: the mixing drum 130 rotates to a horizontal state from a position right below the first end of the mixing cavity, in the process, the first end of the mixing cavity moves from low to high, the raw material in the mixing cavity also moves to the second end of the mixing cavity from a state of being uniformly distributed in the mixing cavity, the three sleeves 260 move to the second end of the mixing cavity synchronously, the plurality of mixing impellers 230 start to rotate along the first direction again, when the mixing drum 130 is in the horizontal state, the raw material is uniformly distributed in the mixing cavity, at the moment, the three sleeves 260 are positioned in the middle of the mixing cavity together, the plurality of mixing impellers 230 are uniformly distributed in the mixing cavity, that is, the plurality of mixing impellers 230 are uniformly distributed in the raw material, and uniform mixing of the raw material is realized.

The fourth stage is as follows: the mixing drum 130 is rotated from the horizontal state to the initial state, in the process, the first end of the mixing chamber further moves from the low position to the high position, the raw material in the mixing chamber is gradually gathered from the state of being uniformly distributed in the mixing chamber to the second end of the mixing chamber, and the three sleeves 260 continue to move towards the second end of the mixing chamber until the three sleeves 260 are uniformly distributed in the raw material again when the second end of the mixing chamber is right below. Since the plurality of stirring impellers 230 rotate in the second direction in this process, the plurality of stirring impellers 230 are reset with respect to the corresponding sleeves 260. That is to say, at this time, the three sleeves 260 and the three stirring impellers 230 are uniformly distributed in the raw material, so as to uniformly stir the raw material.

In this embodiment, an annular groove is formed on the outer peripheral wall of the first sleeve, and the ring 231 of the stirring impeller 230 sleeved on the first sleeve is rotatably disposed along the annular groove. The spiral grooves are formed in the second sleeves, the spiral directions of the spiral grooves on the two second sleeves which are symmetrical with respect to the first sleeve are opposite, the sleeve ring 231 of the stirring impeller 230 sleeved on the second sleeve is provided with a sliding block 291, the sliding block 291 is slidably arranged along the spiral grooves, and specifically, the thread pitch of the spiral groove on each second sleeve is arranged according to the specific size of the stirring cavity and the specific size of the stirring impeller 230.

In the present embodiment, the first driving portion includes a driving shaft 190, a first driving ring 161, and a first transmission assembly. The driving shaft 190 is disposed coaxially with the stirring chamber, and is slidably disposed along an axial direction of the stirring chamber, one end of the driving shaft 190 penetrates through the stirring chamber, the other end is located outside the stirring drum 130, and the sleeve 260 located at the bottom in an initial state is connected to the driving shaft 190. The first drive ring 161 is rotatably disposed about a horizontal reference axis, and a first transmission assembly is used to convert the rotation of the first drive ring 161 about the horizontal reference axis into the sliding movement of the drive shaft 190 in the axial direction of the agitation chamber.

In this embodiment, an installation cavity is further provided in the mixing drum 130, the installation cavity is located below the mixing cavity in an initial state, the driving shaft 190 penetrates through the installation cavity, an induction plate 240 is provided between the installation cavity and the mixing cavity, the induction plate 240 is in sealed sliding fit with the inner peripheral wall of the mixing drum 130, and a bottom plate 242 is provided on one side of the installation cavity, which is far away from the induction plate 240. A telescopic sleeve 261 is connected between two adjacent sleeves 260 and between the sleeve 260 at the bottom in the initial state and the driving shaft 190, and the telescopic sleeve 261 is telescopically arranged along the axial direction of the supporting shaft 220. Be provided with a plurality of hydraulic stems 270 in the installation cavity, every hydraulic stem 270 corresponds a sleeve 260, and hydraulic stem 270 one end fixed connection is in tablet 240, and the other end of hydraulic stem 270 is connected in bottom plate 242, is connected through the connecting pipe between every hydraulic stem 270 and a flexible cover 261, all is full of liquid in hydraulic stem 270, flexible cover 261 and the connecting pipe. The elastic component sets up in the installation cavity, the one end fixed connection of elastic component in tablet 240, the other end of elastic component is connected in bottom plate 242, push down tablet 240 when the raw materials gets into the stirring chamber, tablet 240 pushes down elastic component and hydraulic stem 270, the pressure that receives when the elastic component reaches the default begins the shrink, make hydraulic stem 270 begin the compression, the compression volume of hydraulic stem 270 corresponds proportionally with the quality of stirring intracavity raw materials, liquid passes through the connecting pipe and gets into the telescope tube 261 during the compression of hydraulic stem 270, make the extension of telescope tube 261, be used for promoting a plurality of sleeves 260 at raw materials evenly distributed, specifically, the coefficient of elastic component is great, the distance that tablet 240 removed can be ignored to holding the chamber. The efficient mixing and stirring device for sodium borohydride further comprises a limiting assembly 280, wherein the limiting assembly 280 is used for limiting the movement of the induction plate 240 after the induction plate 240 moves downwards relative to the stirring cylinder 130. The limiting assembly 280 comprises two ratchet plates fixedly mounted on the bottom walls of the sensing plate 240 and the mounting cavity, respectively, and the two ratchet plates are arranged to be close to each other and not far away from each other.

In this embodiment, the efficient mixing and stirring equipment for sodium borohydride further comprises a supporting base 110 and a power mechanism, the supporting base 110 is fixed on the ground, the power mechanism comprises a driving motor and a supporting frame 120, the driving motor is installed on the supporting base 110, the axis of the output shaft 150 of the driving motor is located on a horizontal reference axis, the distances from the first end portion and the second end portion of the stirring cavity to the output shaft 150 of the driving motor are the same, the supporting frame 120 is fixedly installed on the outer side of the stirring cylinder 130 and is fixedly connected with the output shaft 150 of the driving motor, and the driving motor is started to drive the stirring cylinder 130 to rotate around the horizontal reference axis through the output shaft 150 and the supporting frame 120.

In this embodiment, the second drive section includes a drive bar 290, a second drive ring 162, and a second transmission assembly. The outer side of the mixing drum 130 is provided with a rotating ring 180, the rotating ring 180 is rotatably arranged around the axis of the mixing cavity, the driving strip 290 is installed on the rotating ring 180, one end of the driving strip 290 is fixedly connected with the rotating ring 180, the other end of the driving strip 290 is inserted into the sealing cavity and the mixing cavity, the driving strip 290 is fixedly connected with a sealing ring 292, and the sealing ring 292 is rotatably installed on the induction plate 240 along the rotating track of the driving strip 290 and is used for sealing the induction plate 240 and preventing the raw materials in the mixing cavity from leaking out. The driving bar 290 is provided with a sliding groove with an opening facing the axial center of the stirring cavity, the sliding groove extends along the extending direction of the driving bar 290, each stirring impeller 230 is provided with a sliding block 291, and the sliding block 291 is slidably arranged along the sliding groove, so that the stirring impellers 230 can synchronously rotate and relatively slide. The second drive ring 162 is rotatably disposed about a horizontal reference axis, and the second transmission assembly is used to convert the rotation of the second drive ring 162 about the horizontal reference axis into rotation of the rotating ring 180 about the axial center of the stir chamber.

In the present embodiment, the first driving ring 161 and the second driving ring 162 are both bevel gears, and the first driving ring 161 and the second driving ring 162 are both sleeved outside the output shaft 150 of the driving motor and are rotatably disposed relative to the output shaft 150 of the driving motor. The first drive ring 161 can rotate in the forward and reverse directions, the first drive ring 161 rotating in the forward direction when the first end of the stir chamber rotates from high to low, and the first drive ring 161 rotating in the reverse direction when the second end rotates from high to low. The first transmission assembly includes a first driven bevel gear 163, a first transmission bar 165, a first sprocket 210, and a first transmission belt 167. The first driven bevel gear 163 is engaged with the first drive ring 161. The first transmission lever 165 is disposed in parallel with the driving shaft 190, and transmits rotation to the first transmission lever 165 when the first driven bevel gear 163 rotates. The first chain wheel 210 is sleeved outside the driving ring; first drive belt 167 is located on first drive rod 165 and first sprocket 210, first drive rod 165 rotates and drives drive shaft 190 along the axial displacement of stirring chamber when rotating through first drive belt 167 and first sprocket 210, specifically, limiting plate 134 is still installed on support frame 120, connecting rod 132 fixed mounting is passed through at the both ends of limiting plate 134 in support frame 120, be provided with the suit hole on the limiting plate 134, be provided with the limit key on the pore wall of suit hole, drive shaft 190 cartridge is in the suit hole, be provided with the spout with limit key at axial direction sliding fit on drive shaft 190, the limit key inserts in the spout, be provided with the thread groove on the periphery wall of drive shaft 190, be provided with on first sprocket 210 and insert the thread groove and with thread groove sliding fit's arch, make drive shaft 190 along the axial displacement of stirring chamber when first sprocket 210 rotates.

In the present embodiment, the second driving ring 162 is capable of rotating forward and backward, the second driving ring 162 rotates forward when the agitating drum 130 rotates from the vertical state to the horizontal state, and the second driving ring 162 rotates backward when the agitating drum 130 rotates from the horizontal state to the vertical state, and the second transmission assembly includes a second driven bevel gear 164, a second transmission rod 166, a second transmission belt 168, and a second sprocket 181. The second driven bevel gear 164 is engaged with the second drive ring 162. The second driving rod 166 is disposed in parallel with the driving shaft 190, and the second driven bevel gear 164 transmits rotation to the second driving rod 166 when rotated. The second chain wheel 181 is mounted on the rotating ring 180, the second driving belt 168 is sleeved on the second driving rod 166 and the second chain wheel 181, and the rotating ring 180 is driven by the rotation of the second driving rod 166 to rotate around the axis of the stirring cavity through the second driving belt 168 and the second chain wheel 181.

In this embodiment, the efficient mixing and stirring equipment for sodium borohydride further comprises a gearbox 170 and a hydraulic adjusting mechanism. The gearbox 170 is mounted on the support frame 120, specifically, a support plate 131 is disposed on the support frame 120, the gearbox 170 is mounted on the support plate 131, and is configured to adjust a transmission ratio between a first driven bevel gear 163 and a first transmission rod 165, and is configured to adjust a transmission ratio between a second transmission rod 166 and a second driven bevel gear 164 (the gearbox 170 is in the prior art and is not described in detail), the first driven bevel gear 163 and the second driven bevel gear 164 are both rotatably mounted on a box body of the gearbox 170, the hydraulic adjustment mechanism includes two hydraulic cylinders 250, the two hydraulic cylinders 250 are disposed in the mounting cavity, specifically, a push plate 241 is connected to a lower surface of the sensing plate 240, the push plate 241 extends to an outer side of the mounting cavity, an extension plate 133 is disposed on the bottom plate 242, two ends of the hydraulic cylinders 250 are respectively connected to the push plate 241 and the extension plate 133, when the sensing plate 240 descends, the compression of the two hydraulic cylinders 250 is transmitted into the gearbox 170 (the specific manner may adopt a conventional technical means, and is not described in detail), so that the transmission ratio between the first driven bevel gear 163 and the second driven bevel gear 164 is more, the more the transmission rod 163 and the driving shaft 164 is smaller, the more the driving shaft 190 is moved, and the driving shaft 190 is not adapted to the driving shaft 164. Since the mass of the raw material may be different each time, the positions of the plurality of sleeves 260 are different in the initial state and the amount of movement of the sleeves 260 is different each time, and the movement distance of the sleeves 260 is adaptively changed according to the mass of the raw material by the adjustment of the gear box 170. Similarly, the rotation amplitude of the stirring impeller 230 is different every time the raw material is charged with different mass, and the rotation amplitude of the stirring impeller 230 is adaptively changed according to the mass of the raw material by the adjustment of the transmission 170.

The working principle and the working method of the sodium borohydride efficient mixing and stirring equipment provided by the embodiment are as follows:

first, a raw material to be stirred is input from the input port 140, and then the blocking plate is closed, the driving motor is turned on, and the power member controlling the rotation of the first driving ring 161 and the second driving ring 162.

The driving motor drives the mixing drum 130 to rotate around the reference axis through the output shaft and the support frame 120, and the mixing drum 130 revolves around the first transmission shaft 150. Taking the clockwise rotation as an example, the rotation of the mixing drum 130 is divided into four stages, in the first stage, the first driving ring 161 rotates forward, the driving rod moves towards the first end close to the mixing cavity under the action of the first driving part, and drives the three sleeves 260 to move towards the first end of the mixing cavity synchronously, when the mixing drum 130 is in a horizontal state, the three sleeves 260 are located in the middle of the mixing cavity together, the second driving ring 162 rotates forward, the plurality of mixing impellers 230 rotate in the first direction under the action of the second driving part, and when the mixing drum 130 is in a horizontal state, the plurality of mixing impellers 230 are uniformly distributed in the installation cavity.

When the mixing drum 130 is in the second stage, the raw material in the mixing cavity gradually gathers from a state of being uniformly distributed in the mixing cavity to the first end of the mixing cavity, the first driving ring 161 continues to rotate forward, the three sleeves 260 continue to move towards the first end close to the mixing cavity under the action of the first driving part, and until the three sleeves 260 are uniformly distributed in the raw material again when the first end of the mixing cavity is located right below. The second drive ring 162 rotates reversely, and the plurality of stirring vanes 230 rotate in the second direction by the second drive portion, so that the plurality of stirring vanes 230 are reset with respect to the corresponding sleeves 260. That is to say, at this time, the three sleeves 260 and the three stirring impellers 230 are uniformly distributed in the raw materials, so as to realize uniform stirring of the raw materials.

When the mixing drum 130 is in the third stage, the first driving ring 161 rotates reversely, the three sleeves 260 start to move synchronously to the second end of the mixing chamber under the action of the first driving part, the second driving ring 162 starts to rotate normally, the mixing impellers 230 start to rotate in the first direction under the action of the second driving part, when the mixing drum 130 is in a horizontal state, the raw material is uniformly distributed in the mixing chamber, at this time, the three sleeves 260 are located at the middle part of the mixing chamber together, and the mixing impellers 230 are uniformly distributed in the mounting chamber, that is, the mixing impellers 230 are uniformly distributed in the raw material, so that the raw material is uniformly mixed.

When the mixing drum 130 is in the fourth stage, the mixing drum 130 rotates from the horizontal state to the initial state, in the process, the first end of the mixing cavity further moves from the low state to the high state, the raw material in the mixing cavity gradually gathers from the state of being uniformly distributed in the mixing cavity to the second end of the mixing cavity, the second driving ring 162 continues to rotate reversely, and the three sleeves 260 continue to move towards the second end close to the mixing cavity until the three sleeves 260 are uniformly distributed in the raw material again when the second end of the mixing cavity is right below. The second drive ring 162 starts to rotate reversely, and the plurality of stirring vanes 230 are rotated in the second direction by the second drive portion, so that the plurality of stirring vanes 230 are reset with respect to the corresponding sleeves 260. That is to say, at this time, the three sleeves 260 and the three stirring impellers 230 are uniformly distributed in the raw material, so as to uniformly stir the raw material.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a high-efficient mixing stirring equipment of sodium borohydride which characterized in that: the stirring device comprises a stirring drum, wherein the stirring drum is rotatably arranged around a horizontal reference axis, and the horizontal reference axis is vertical to the axis of the stirring drum; the stirring barrel is internally provided with a columnar stirring cavity for filling raw materials, the stirring cavity is not completely filled when the raw materials are filled in the stirring cavity, the two ends of the stirring cavity are respectively a first end part and a second end part, the axis of the stirring cavity is positioned in the vertical direction in an initial state, the first end part of the stirring cavity is positioned above the second end part, a supporting shaft is fixedly installed in the stirring cavity, the supporting shaft and the stirring cavity are coaxially arranged, a plurality of sleeves are sleeved outside the supporting shaft, the number of the sleeves is odd and is more than 1, the sleeves are distributed at equal intervals, each sleeve is slidably arranged along the axial direction of the supporting shaft, the sleeve in the middle is used as a first sleeve, the rest sleeves are used as second sleeves, and the sleeves are uniformly distributed in the raw materials in the initial state;

the first driving part is used for enabling the sleeves to synchronously move towards the first end part of the stirring cavity at a constant speed when the first end part of the stirring cavity rotates from high to low, enabling the sleeves to synchronously move towards the second end part at a constant speed when the first end part of the stirring cavity rotates from low to high, and enabling the first sleeve to be positioned in the middle of the stirring cavity when the stirring cylinder is in a horizontal state;

a plurality of stirring impellers are arranged in the stirring cavity, the middle part of each stirring impeller is provided with a lantern ring, each stirring impeller is sleeved outside one sleeve through the lantern ring, and the stirring impellers are uniformly distributed in the raw materials in an initial state;

the second driving part is used for driving the stirring impellers to synchronously rotate around the axis of the supporting shaft at a constant speed along the first direction in the process that the stirring barrel rotates from the vertical state to the horizontal state, the stirring impellers sleeved on the second sleeve can be far away from the stirring impeller sleeved on the first sleeve when rotating along the first direction, and the stirring impellers are uniformly distributed in the stirring cavity until the stirring barrel rotates to the horizontal state; when the mixing drum rotates from the horizontal state to the vertical state, the second driving part drives the plurality of mixing impellers to synchronously rotate at a constant speed along the second direction around the axis of the supporting shaft, the mixing impellers sleeved on the second sleeve are close to each other relative to the mixing impeller sleeved on the first sleeve when rotating along the second direction, and the plurality of mixing impellers are reset relative to the sleeve until the mixing drum rotates to the vertical state, so that the plurality of mixing impellers are still uniformly distributed in the raw material;

an annular groove is formed in the peripheral wall of the first sleeve, and a lantern ring of the stirring impeller sleeved on the first sleeve is rotatably arranged along the annular groove; the spiral grooves on the two second sleeves which are symmetrical about the first sleeve are opposite in rotation direction, and a sliding block is arranged on a sleeve ring of the stirring impeller sleeved on the second sleeve and can slide along the spiral grooves;

the first driving part comprises a driving shaft, a first driving ring and a first transmission assembly; the driving shaft and the stirring cavity are coaxially arranged and can slide along the axial direction of the stirring cavity, one end of the driving shaft penetrates through the stirring cavity, the other end of the driving shaft is positioned on the outer side of the stirring cylinder, and the sleeve positioned at the bottom in an initial state is connected with the driving shaft; the first drive is rotatably disposed about the horizontal reference axis, and the first transmission assembly is configured to convert rotation of the first drive about the horizontal reference axis into sliding movement of the drive shaft in an axial direction of the stir chamber.

2. The efficient mixing and stirring device for sodium borohydride according to claim 1, characterized in that: an installation cavity is further arranged in the mixing drum, the installation cavity is located below the mixing cavity in an initial state, the driving shaft penetrates through the installation cavity, an induction plate is arranged between the installation cavity and the mixing cavity, and the induction plate is in sealing sliding fit with the inner peripheral wall of the mixing drum; telescopic sleeves are connected between two adjacent sleeves and between the sleeve at the bottom in the initial state and the driving shaft, and are arranged in a telescopic manner along the axial direction of the supporting shaft; a plurality of hydraulic rods are arranged in the installation cavity, each hydraulic rod corresponds to one sleeve, one end of each hydraulic rod is fixedly connected to the induction plate, the other end of each hydraulic rod is connected to the bottom wall of the installation cavity, each hydraulic rod is connected with one telescopic sleeve through a connecting pipe, and the hydraulic rods, the telescopic sleeves and the connecting pipes are filled with liquid; the elastic part is arranged in the mounting cavity, one end of the elastic part is fixedly connected to the induction plate, the other end of the elastic part is connected to the bottom wall of the mounting cavity, the induction plate is downwards jacked when raw materials enter the stirring cavity, the induction plate downwards jacks the elastic part and the hydraulic rod, when the pressure applied to the elastic part reaches a preset value, the elastic part starts to contract, so that the hydraulic rod starts to compress, the compression amount of the hydraulic rod is proportional to the mass of the raw materials in the stirring cavity, when the hydraulic rod compresses, liquid enters the telescopic sleeve through the connecting pipe, so that the telescopic sleeve extends, and a plurality of sleeves are pushed to be uniformly distributed in the raw materials; the efficient mixing and stirring equipment for sodium borohydride further comprises a limiting assembly, and the limiting assembly is used for limiting the movement of the induction plate after the induction plate moves downwards relative to the stirring cylinder.

3. The efficient mixing and stirring device for sodium borohydride according to claim 1, which is characterized in that: the efficient mixing and stirring equipment for the sodium borohydride further comprises a supporting seat and a power mechanism, the supporting seat is fixed on the ground, the power mechanism comprises a driving motor and a supporting frame, the driving motor is installed on the supporting frame, the axis of the output shaft of the driving motor is located on the horizontal reference axis, the distance from the first end portion and the distance from the second end portion of the stirring cavity to the output shaft of the driving motor are the same, the supporting frame is fixedly installed on the outer side of the stirring cylinder and fixedly connected with the output shaft of the driving motor, and the driving motor is started to drive the stirring cylinder to rotate around the horizontal reference axis through the output shaft and the supporting frame.

4. The efficient mixing and stirring device for sodium borohydride according to claim 2, which is characterized in that: the second driving part comprises a driving strip, a second driving ring and a second transmission assembly; a rotating ring is arranged on the outer side of the stirring cylinder, the rotating ring is rotatably arranged around the axis of the stirring cavity, a driving strip is arranged on the rotating ring, one end of the driving strip is fixedly connected with the rotating ring, the other end of the driving strip is inserted into the sealing cavity and the stirring cavity, a sealing ring is fixedly connected on the driving strip, and the sealing ring is rotatably arranged on the induction plate along the rotating track of the driving strip and is used for sealing the induction plate; the driving strip is provided with a sliding chute with an opening facing to the axis of the stirring cavity, the sliding chute extends along the extension direction of the driving strip, each stirring impeller is provided with a sliding block, and the sliding block is arranged along the sliding chute in a sliding manner; the second drive is rotatably disposed about the horizontal reference axis, and the second transmission assembly is configured to convert rotation of the second drive about the horizontal reference axis into rotation about an axis of the stir chamber.

5. The efficient mixing and stirring device for sodium borohydride according to claim 4, which is characterized in that: the first driving ring and the second driving ring are both bevel gears, and both the first driving ring and the second driving ring are sleeved outside the output shaft of the driving motor and are rotatably arranged relative to the output shaft of the driving motor; the first driving ring can rotate forwards and backwards, the first driving ring rotates forwards when the first end of the stirring cavity rotates from high to low, and the first driving ring rotates backwards when the second end of the stirring cavity rotates from high to low; the first transmission assembly comprises a first driven bevel gear, a first transmission rod, a first chain wheel and a first transmission belt; the first driven bevel gear is meshed with the first driving ring; the first transmission rod is arranged in parallel with the driving shaft, and the first driven bevel gear transmits rotation to the first transmission rod when rotating; the first chain wheel is sleeved outside the driving shaft; the first transmission belt is sleeved on the first transmission rod and the first chain wheel, and the first transmission rod rotates to drive the driving shaft to move along the axial direction of the stirring cavity through the rotation of the first transmission belt and the first chain wheel.

6. The efficient mixing and stirring device for sodium borohydride according to claim 5, which is characterized in that: the second driving ring can rotate forwards and backwards, the second driving ring rotates forwards when the mixing drum rotates from the vertical state to the horizontal state, and rotates backwards when the mixing drum rotates from the horizontal state to the vertical state, and the second transmission assembly comprises a second driven bevel gear, a second transmission rod, a second transmission belt and a second chain wheel; the second driven bevel gear is meshed with the second driving ring; the second transmission rod is arranged in parallel with the driving shaft, and the second driven bevel gear transmits rotation to the second transmission rod when rotating; the second chain wheel is installed in the rotating ring, the second transmission rod and the second chain wheel are arranged on the second transmission belt in a sleeved mode, and the second transmission rod rotates around the axis of the stirring cavity through the second transmission belt and the second chain wheel in a driving mode.

7. The efficient mixing and stirring device for sodium borohydride according to claim 6, which is characterized in that: the sodium borohydride efficient mixing and stirring equipment further comprises a gearbox and a hydraulic adjusting mechanism; the gearbox is installed on the carriage, be used for adjusting the drive ratio of first driven bevel gear and first drive lever, and be used for adjusting second drive lever and second driven bevel gear's drive ratio, first driven bevel gear and second driven bevel gear all rotate and install on the box of gearbox, hydraulic pressure guiding mechanism includes two pneumatic cylinders, two pneumatic cylinders set up in the installation cavity, two pneumatic cylinders compress when the tablet descends, the compression of every pneumatic cylinder is transferred to in the gearbox, make the drive ratio of first driven bevel gear and first drive lever and the drive ratio of second driven bevel gear and second drive lever reduce, the pneumatic cylinder compression is more, the drive ratio of first driven bevel gear and first drive lever is littleer, the drive ratio of second driven bevel gear and second drive lever is littleer.

8. The efficient mixing and stirring device for sodium borohydride according to claim 2, which is characterized in that: the limiting assembly comprises two ratchet plates which are fixedly mounted on the bottom walls of the induction plate and the mounting cavity respectively, and the two ratchet plates can only be close to each other and cannot be far away from each other.