CN218458693U

CN218458693U - Recrystallization equipment thermally equivalent structure is used in sodium bicarbonate preparation

Info

Publication number: CN218458693U
Application number: CN202222631059.3U
Authority: CN
Inventors: 王声伟; 赵鑫; 王小龙
Original assignee: JIANGSU QINFEN PHARMACEUTICAL CO Ltd
Current assignee: JIANGSU QINFEN PHARMACEUTICAL CO Ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-02-10
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a recrystallization equipment thermally equivalent structure is used in sodium bicarbonate preparation, relate to recrystallization equipment technical field, it is too big for the resistance between solution stirring leaf and sodium bicarbonate solution or the crystalline solid, inhomogeneous shortcoming of being heated when leading to sodium bicarbonate recrystallization, including rabbling mechanism, rabbling mechanism through setting up, be certain contained angle between linkage plate and the filter plate, the linkage rod is when rotating, sodium bicarbonate solution or crystalline solid pass from the contained angle between linkage plate and the filter plate, reduce the resistance that the filter plate received during the stirring, simultaneously when the stirring, the liquid of part sodium bicarbonate or crystalline solid pass from the filtration pore of filter plate outer end, the velocity of flow of the inside liquid of crystallizer and crystalline solid has been strengthened, strengthen the homogeneity that sodium bicarbonate liquid or crystalline solid were heated when accelerating the inside liquid of crystallizer or crystalline solid turn, the quick evaporation crystallization of sodium bicarbonate of being convenient for.

Description

Recrystallization equipment thermally equivalent structure is used in sodium bicarbonate preparation

Technical Field

The utility model relates to a recrystallization equipment technical field especially relates to a sodium bicarbonate preparation is with recrystallization equipment thermally equivalent structure.

Background

Sodium bicarbonate is a white alkaline powder that is readily soluble in water, begins to act upon water to liberate carbon dioxide, CO2, more rapidly in an acidic liquid, and liberates gas more rapidly as ambient temperature increases. The sodium bicarbonate needs to be recrystallized in the preparation process, and the reagent is put into the sodium bicarbonate to be melted and evaporated at high temperature to obtain relatively pure sodium bicarbonate powder. The tank body is commonly used in large-scale industry for recrystallization purification of sodium bicarbonate.

Sodium bicarbonate when recrystallization, need use agitated vessel to stir, traditional agitated vessel uses the stirring leaf of great volume more, and the resistance between the solution or the crystal body that stirring leaf and sodium bicarbonate were made is great to lead to stirring speed lower, and then reduce the even degree that sodium bicarbonate is heated, also influence the efficiency of sodium bicarbonate recrystallization.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the resistance between the stirring blade and the sodium bicarbonate solution or the crystal is too large, so that the defect of nonuniform heating during sodium bicarbonate recrystallization is caused, and providing a recrystallization equipment uniform heating structure for sodium bicarbonate preparation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a sodium bicarbonate preparation is with recrystallization equipment thermally equivalent structure, includes the crystallizer, the top of crystallizer is equipped with rabbling mechanism, the rabbling mechanism include fixed connection in the casing on crystallizer top, the inside of casing is equipped with the motor, the spindle position fixedly connected with of motor runs through the pole that links up of crystallizer, the outer end fixedly connected with of pole that links up the board, the inside fixedly connected with filter plate of pole, just the link up the board with the filter plate is certain contained angle, just the filtration pore has been seted up to the outer end of filter plate.

Preferably, four groups of the connecting plates are arranged, the four groups of the connecting plates are fixedly connected to the outer ends of the connecting rods in an annular shape at equal intervals, and the number of the filter holes is multiple.

Preferably, the outer pot head of crystallizer is equipped with the heating jar, the heating jar is inside to be hollow, just the heat preservation has been cup jointed to the inner chamber of heating jar, the heating jar with fixedly connected with hot plate between the heat preservation, the outer end fixedly connected with temperature controller of heating jar.

Preferably, one side fixedly connected with inlet tube of heating jar, the inlet tube is kept away from one side fixedly connected with outlet pipe of heating jar, just the outer end fixedly connected with thermoscope of crystallizer.

Preferably, the top one side fixedly connected with inlet pipe of crystallizer, the bottom fixedly connected with discharging pipe of crystallizer, the discharging pipe runs through the heating jar extends to the outside, just the discharging pipe with the cover is equipped with the sealing plug between the heating jar.

Preferably, the top fixedly connected with air duct of crystallizer, the hollow hot plate of assisting of other end fixedly connected with of air duct, hollow assist the hot plate card connect in the outer end of heating jar, just one side fixedly connected with blast pipe of hollow hot plate of assisting, one side fixedly connected with shunt tubes of air duct, the outer end of air duct rotates and is connected with the change-over valve.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, a recrystallization equipment thermally equivalent structure is used in sodium bicarbonate preparation, through the rabbling mechanism that sets up, be certain contained angle between linkage plate and the filter plate, the linkage rod is when rotating, sodium bicarbonate solution or crystalline solid pass from the contained angle between linkage plate and the filter plate, the resistance that the filter plate received when reducing the stirring, simultaneously when the stirring, the liquid or the crystalline solid of part sodium bicarbonate pass from the filtration pore of filter plate outer end, the velocity of flow of the inside liquid of crystallizer and crystalline solid has been strengthened, strengthen the homogeneity that sodium bicarbonate liquid or crystalline solid were heated when accelerating the inside liquid of crystallizer or crystalline solid turn, the sodium bicarbonate rapid evaporation crystallization of being convenient for.

Carry to the inside cavity of heating jar through follow hot water from the inlet tube, and heat through the temperature controller and make the inside water of heating jar keep stable temperature to the hot plate, the radiating efficiency of water is lower simultaneously, effectually play heat retaining effect to the crystallizer, reduce the loss of the energy, sodium bicarbonate can produce a large amount of high temperature steam when recrystallization simultaneously, retrieve the outer end of most heat transfer to heating jar that contains it with steam again, reduce the required energy consumption of hot plate during operation, cost when having reduced sodium bicarbonate preparation.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a thermally uniform structure of a recrystallization apparatus for sodium bicarbonate production according to the present invention;

fig. 2 is a schematic view of a partial structure of the stirring mechanism of the present invention;

fig. 3 is a schematic view of the internal structure of the heating tank according to the present invention.

In the figure: 1. a crystallization tank; 2. a stirring mechanism; 201. a housing; 202. a motor; 203. a connecting rod; 204. a connector tile; 205. filtering the plate; 206. filtering holes; 3. a heating tank; 4. a heat-insulating layer; 5. heating the plate; 6. a temperature controller; 7. a water inlet pipe; 8. a water outlet pipe; 9. a temperature detector; 10. a feed pipe; 11. a discharge pipe; 12. a sealing plug; 13. an air duct; 14. a hollow auxiliary hot plate; 15. an exhaust pipe; 16. a shunt tube; 17. and a changeover valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-3, a uniform heating structure of a recrystallization apparatus for preparing sodium bicarbonate includes a crystallization tank 1, a stirring mechanism 2 is disposed at a top end of the crystallization tank 1, the stirring mechanism 2 includes a casing 201 fixedly connected to the top end of the crystallization tank 1, a motor 202 is disposed inside the casing 201, a shaft portion of the motor 202 is fixedly connected with an engaging rod 203 penetrating through the crystallization tank 1, an outer end of the engaging rod 203 is fixedly connected with an engaging plate 204, the engaging plate 204 is provided with four groups, the four groups of engaging plates 204 are fixedly connected to an outer end of the engaging rod 203 in an annular shape at equal intervals, a filter plate 205 is fixedly connected inside the engaging plate 204, the engaging plate 204 and the filter plate 205 form a certain included angle, after sodium bicarbonate liquid is poured into the crystallization tank 1, the motor 202 inside the casing 201 is started, the motor 202 drives the engaging rod 203 connected to the shaft thereof to rotate, at this time, the four groups of engaging plates 204 at outer ends of the engaging rods 203 drive the engaging plate 204 to rotate, sodium bicarbonate solution and the crystals pass through an included angle between the engaging plate 204 and the filter plate 205, since resistance of the filter plate 205 is small, liquid or flow rate of the sodium bicarbonate liquid inside the crystallization tank 1 is high, the liquid or the crystallization tank 1 is increased, and the energy consumption of the crystal is reduced, and the liquid is further increased, and the efficiency of the filter plate 205 is increased, and the sodium bicarbonate solution is increased when the sodium bicarbonate solution and the sodium bicarbonate is increased, the sodium bicarbonate solution and the sodium bicarbonate is further increased, the sodium bicarbonate is filtered by the sodium bicarbonate filter plate 205.

Example two

The improvement on the basis of the first embodiment: the outer end cover of crystallizer 1 is equipped with heating tank 3, the inside of heating tank 3 is hollow, and the inner chamber of heating tank 3 is cup jointed with heat preservation 4, fixedly connected with hot plate 5 between heating tank 3 and heat preservation 4, the outer end fixedly connected with temperature controller 6 of heating tank 3, one side fixedly connected with inlet tube 7 of heating tank 3, one side fixedly connected with outlet pipe 8 that inlet tube 7 keeps away from heating tank 3, and the outer end fixedly connected with thermoscope 9 of crystallizer 1, sodium bicarbonate needs to be heated continuously in the recrystallization process, lead hot water into the cavity of heating tank 3 from inlet tube 7, temperature controller 6 controls hot plate 5 to heat the water in heating tank 3 continuously, and maintain the temperature in a certain range, the thermal diffusivity of water is weak, thereby be convenient for maintain crystallizer 1 under the invariable temperature for a long time, simultaneously thermoscope 9 can measure the temperature of crystallizer 1 inside, the heating time and the heating temperature of the heating plate 5 can be conveniently adjusted according to the required temperature in the crystallization tank 1, the energy consumption of the heating plate 5 is reduced, one side of the top end of the crystallization tank 1 is fixedly connected with a feeding pipe 10, the bottom end of the crystallization tank 1 is fixedly connected with a discharging pipe 11, the discharging pipe 11 penetrates through the heating tank 3 and extends to the outside, a sealing plug 12 is sleeved between the discharging pipe 11 and the heating tank 3, the feeding pipe 10 and the discharging pipe 11 are respectively used for pouring sodium bicarbonate liquid and discharging sodium bicarbonate crystals, the sealing plug 12 enhances the sealing property between the discharging pipe 11 and the heating tank 3 to prevent water from flowing out from a gap, the top end of the crystallization tank 1 is fixedly connected with an air guide pipe 13, the other end of the air guide pipe 13 is fixedly connected with a hollow auxiliary heating plate 14, the hollow auxiliary heating plate 14 is clamped at the outer end of the heating tank 3, and one side of the hollow auxiliary heating plate 14 is fixedly connected with an exhaust pipe 15, sodium bicarbonate can produce a large amount of high temperature steam when the evaporation crystallization, high temperature steam discharges into hollow auxiliary hot plate 14 from air duct 13, the heat transfer of high temperature steam is to the inside of heating jar 3, the heat of high temperature steam plays heat retaining effect to heating jar 3, reduce the energy consumption of hot plate 5 simultaneously, endless heat flow discharges from blast pipe 15 again, one side fixedly connected with shunt tubes 16 of air duct 13, the outer end of air duct 13 rotates and is connected with change-over valve 17, when needs reduce the inside temperature of crystallizer 1, rotate change-over valve 17, make high temperature steam discharge from shunt tubes 16, air duct 13 of establishing additional simultaneously can reduce the inside pressure of crystallizer 1, reduce the danger in the production process.

In the utility model, after the sodium bicarbonate liquid is poured into the crystallization tank 1, the motor 202 in the casing 201 is started, the motor 202 drives the connecting rod 203 connected with the machine shaft to rotate, at the moment, the connecting rod 203 drives the four groups of connecting plates 204 at the outer end to rotate, the sodium bicarbonate solution and the crystal pass through the included angle between the connecting plates 204 and the filter plates 205, because the resistance received by the filter plates 205 is smaller, the flow rate of the liquid or the crystal in the crystallization tank 1 is faster, the energy consumption of the motor 202 is reduced while the heating uniformity of the sodium bicarbonate liquid and the crystal is improved, when in stirring, part of the sodium bicarbonate liquid and the crystal pass through the filter holes 206 of the filter plates 205, the resistance received by the filter plates 205 is further reduced, the flow rate and the recrystallization efficiency of the sodium bicarbonate liquid and the crystal are accelerated, the sodium bicarbonate needs to be continuously heated in the recrystallization process, hot water is guided into the cavity in the heating tank 3 from the water inlet pipe 7, the temperature controller 6 controls the heating plate 5 to continuously heat the water in the heating tank 3 and maintain the temperature in a certain range, the heat dissipation performance of the water is weak, thereby being convenient for maintaining the crystallizing tank 1 at a constant temperature for a long time, meanwhile, the temperature detector 9 can measure the temperature in the crystallizing tank 1, being convenient for adjusting the heating time and the heating temperature of the heating plate 5 according to the temperature required in the crystallizing tank 1, reducing the energy consumption of the heating plate 5, the feeding pipe 10 and the discharging pipe 11 are respectively used for pouring sodium bicarbonate liquid and discharging sodium bicarbonate, the sealing plug 12 enhances the sealing performance between the discharging pipe 11 and the heating tank 3, avoiding the water from flowing out from a gap, the sodium bicarbonate can generate a large amount of high-temperature steam during evaporation and crystallization, the high-temperature steam is discharged into the hollow auxiliary heating plate 14 from the gas guide pipe 13, and the heat of the high-temperature steam is transferred into the heating tank 3, the heat of the high-temperature steam plays a role in heat preservation for the heating tank 3, the energy consumption of the heating plate 5 is reduced, the circulating heat flow is discharged from the exhaust pipe 15, when the temperature in the crystallization tank 1 needs to be reduced, the conversion valve 17 is rotated, the high-temperature steam is discharged from the shunt pipe 16, and meanwhile, the pressure in the crystallization tank 1 can be reduced by the aid of the additionally arranged air guide pipe 13, and dangerousness in the production process is reduced.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a sodium bicarbonate preparation is with recrystallization equipment thermally equivalent structure, includes crystallizer (1), its characterized in that: the top of crystallizer (1) is equipped with rabbling mechanism (2), rabbling mechanism (2) include fixed connection in casing (201) on crystallizer (1) top, the inside of casing (201) is equipped with motor (202), the spindle position fixedly connected with of motor (202) runs through connecting rod (203) of crystallizer (1), the outer end fixedly connected with of connecting rod (203) links up pole (204), the inside fixedly connected with filter plate (205) of linking up pole (204), just connecting pole (204) with filter plate (205) are certain contained angle, just filtration pore (206) have been seted up to the outer end of filter plate (205).

2. The uniform heating structure of a recrystallization apparatus for producing sodium bicarbonate according to claim 1, wherein the connecting plates (204) are provided in four groups, and the four groups of the connecting plates (204) are fixedly connected to the outer ends of the connecting rods (203) in a ring shape at equal intervals, and the filtering holes (206) are provided in several numbers.

3. The even heating structure of the recrystallization equipment for preparing sodium bicarbonate according to claim 1, characterized in that the outer end sleeve of the crystallization tank (1) is provided with a heating tank (3), the inside of the heating tank (3) is hollow, the inner cavity of the heating tank (3) is sleeved with a heat-insulating layer (4), the heating tank (3) is fixedly connected with a heating plate (5) between the heat-insulating layer (4), and the outer end of the heating tank (3) is fixedly connected with a temperature controller (6).

4. The uniformly heated structure of the recrystallization equipment for preparing sodium bicarbonate according to claim 3, characterized in that one side of the heating tank (3) is fixedly connected with a water inlet pipe (7), one side of the water inlet pipe (7) far away from the heating tank (3) is fixedly connected with a water outlet pipe (8), and the outer end of the crystallization tank (1) is fixedly connected with a temperature detector (9).

5. The even heating structure of the recrystallization equipment for preparing sodium bicarbonate according to claim 3, wherein one side of the top end of the crystallization tank (1) is fixedly connected with a feeding pipe (10), the bottom end of the crystallization tank (1) is fixedly connected with a discharging pipe (11), the discharging pipe (11) penetrates through the heating tank (3) and extends to the outside, and a sealing plug (12) is sleeved between the discharging pipe (11) and the heating tank (3).

6. The even heating structure of the recrystallization equipment for preparing sodium bicarbonate according to claim 3, wherein the top end of the crystallization tank (1) is fixedly connected with an air duct (13), the other end of the air duct (13) is fixedly connected with a hollow auxiliary heating plate (14), the hollow auxiliary heating plate (14) is clamped at the outer end of the heating tank (3), one side of the hollow auxiliary heating plate (14) is fixedly connected with an exhaust pipe (15), one side of the air duct (13) is fixedly connected with a shunt pipe (16), and the outer end of the air duct (13) is rotatably connected with a change-over valve (17).