CN218589717U - Vacuum type continuous evaporation crystallization device - Google Patents
Vacuum type continuous evaporation crystallization device Download PDFInfo
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- CN218589717U CN218589717U CN202223160456.3U CN202223160456U CN218589717U CN 218589717 U CN218589717 U CN 218589717U CN 202223160456 U CN202223160456 U CN 202223160456U CN 218589717 U CN218589717 U CN 218589717U
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Abstract
The utility model discloses a continuous evaporation crystallization device of vacuum type belongs to evaporation crystallization technical field, and aim at solves the difficult problem of cultivateing large granule crystal product, the stifled pipe of easily appearing scabbing of current crystallization device. It includes the crystallizer, the flash vessel, the condenser, the crystallizer roof is provided with the circulating pump, flash vessel diapire intercommunication has central pipe, central pipe stretches into in the crystallizer, crystallizer lateral wall lower part is provided with the salt thick liquid export, crystallizer lateral wall upper portion is provided with the mother liquor export, the lateral wall of flash vessel is provided with the feed inlet, the feed inlet passes through feed pipe and circulating pump exit end intercommunication, the feed pipe still communicates there is strong brine input tube, it is provided with steam outlet to lie in the feed inlet top on the lateral wall of flash vessel, the condenser still is provided with steam input port, the coolant liquid inlet, the coolant liquid outlet, condensate output port, steam outlet passes through steam pipe and steam input port intercommunication. The utility model is suitable for a vacuum type continuous evaporation crystallization device.
Description
Technical Field
The utility model belongs to the technical field of the evaporation crystallization, concretely relates to vacuum type continuous evaporation crystallization device.
Background
Crystallization is one of the basic and common processes in chemical production. The crystallization process is divided into three main categories: evaporative crystallization, evaporative crystallization and vacuum crystallization.
Application number CN201520358808.7 discloses a high-efficient evaporation crystallization device, and it includes a jar body and pre-heating device, pre-heating device's discharge gate links to each other with the feed inlet of a jar body, jar internal portion is from last to being equipped with a plurality of evaporation crystallization rooms down in proper order, every the evaporation crystallization room includes heater, agitator, steam outlet pipeline, crystallizing pond and is located the feed liquid pipeline of crystallizing pond lateral wall, be equipped with control switch on the feed liquid pipeline, the steam outlet pipeline of each evaporation crystallization room all links to each other, and the control temperature of the heater of the evaporation crystallization room that is equipped with from last to down rises in proper order. But the device need assist the crystallization through the stirring, hardly cultivates large granule crystal product, simultaneously because the heater directly sets up in the crystallization chamber, the problem of stifled pipe of scabbing can appear in the evaporation process, consequently can't satisfy the production demand of current enterprise.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a vacuum type continuous evaporation crystallization device, solves the difficult problem of cultivateing large granule crystal product, the stifled pipe of scabbing of easily appearing of current crystallization device.
The utility model adopts the technical scheme as follows:
the utility model provides a vacuum type evaporates crystallization device in succession, includes crystallizer, flash vessel, condenser, the crystallizer roof is provided with the circulating pump, the circulating pump entrance point of circulating pump is located the crystallizer, the circulating pump exit end of circulating pump is located the crystallizer outside, flash vessel diapire intercommunication has central pipe, central pipe stretches into in the crystallizer just the central pipe exit end of central pipe is close to the inner diapire of crystallizer, crystallizer lateral wall lower part is provided with the salt thick liquid export, crystallizer lateral wall upper portion is provided with the mother liquor export, the lateral wall of flash vessel is provided with the feed inlet, the feed inlet passes through inlet pipe and circulating pump exit end intercommunication, the inlet pipe still communicates there is the strong brine input pipe, it is provided with steam outlet to lie in the feed inlet top on the lateral wall of flash vessel, the condenser still is provided with steam input port, coolant liquid inlet, coolant liquid outlet, condensate output port, steam outlet passes through steam conduit and steam input port intercommunication.
Furthermore, the condenser is also provided with a non-condensable gas output port which is communicated with a vacuum pump.
Further, the inlet end of the circulating pump is positioned above the inside of the crystallizer and close to one side of the inner top wall of the crystallizer.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, including crystallizer, flash vessel, condenser, the crystallizer roof is provided with the circulating pump, the circulating pump entrance point of circulating pump is located the crystallizer, the circulating pump exit end of circulating pump is located the crystallizer outside, flash vessel diapire intercommunication has central pipe, central pipe stretch into in the crystallizer just the center pipe exit end of central pipe is close to the interior diapire of crystallizer, crystallizer lateral wall lower part is provided with the salt thick liquid export, crystallizer lateral wall upper portion is provided with the mother liquor export, the lateral wall of flash vessel is provided with the feed inlet, the feed inlet passes through inlet pipe and circulating pump exit end intercommunication, the inlet pipe still communicates there is the strong brine input pipe, it is provided with steam outlet to lie in the feed inlet top on the lateral wall of flash vessel, the condenser still is provided with steam input port, coolant liquid inlet, coolant liquid outlet, condensate output port, steam outlet passes through steam pipe and steam input port intercommunication.
Through this setting, external strong brine passes through the input of strong brine input tube and mixes the back and gets into in the flash vessel from the feed inlet with the feed liquid that the circulating pump sucked out from crystallizer upper portion in the feeder pipe. Because the interior of the flash evaporator is in a vacuum state, the feed liquid is concentrated after being flashed in the flash evaporator to form supersaturation degree. Steam generated by flash evaporation is discharged from a steam outlet and is introduced into the condenser through a steam guide pipe, cooling liquid sent from the outside enters the condenser from a cooling liquid inlet of the condenser to exchange heat with flash evaporation steam in the condenser, the cooling liquid is discharged from a cooling liquid outlet after absorbing heat, condensate is formed after the steam exchanges heat, and the condensate is discharged from a condensate outlet port. The supersaturated solution after flash evaporation is inserted into a central conduit at the bottom of the crystallizer by a flash evaporator, is conveyed to the bottom of the crystallizer and slowly moves upwards, and the supersaturation degree is continuously released in the upward movement process. The crystal grains grow up in the upward movement process, and when the crystal grains reach the height of the salt slurry outlet, the crystal grains are discharged out of the crystallizer from the salt slurry outlet. After the large-particle salt slurry is discharged, the temperature of the feed liquid is increased due to the absorption of crystallization heat in the crystallization process, fine crystal grains are dissolved, and the feed liquid is not saturated any more. Along with continuous evaporation and concentration, the mother liquor is opened to discharge after other impurity components reach a certain concentration, and the mother liquor is uniformly discharged from a mother liquor outlet. The device has continuous feeding, solution crystallization, discharging and heat exchange, and controls the flash evaporation strength by controlling the vacuum degree of the flash evaporator, thereby ensuring the crystallization speed, the crystallization granularity and the stability of the device. The whole device has the advantages of simple structure, small occupied area, outdoor installation, simple operation, realization of full-automatic control and low labor intensity. The device can operate at normal pressure and has high safety. The evaporation process has no heat exchange surface, thus fundamentally solving the problem of scabbing and pipe plugging and ensuring the continuous and stable operation of the device for a long time. Meanwhile, the crystallization process is continuous, the crystallization temperature is low, the crystallizer is not internally stirred, the crystal growth environment is mild, and the method is particularly suitable for culturing large-particle crystal products.
2. The utility model discloses in, the condenser still is provided with noncondensable gas output port, noncondensable gas output port intercommunication has the vacuum pump. Through this setting, the noncondensable gas that gets into in the condenser along with steam can be by the suction discharge of vacuum pump by force, ensures that whole device operation is stable.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings which are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for a person skilled in the art, without inventive effort, other relevant drawings can be obtained on the basis of these drawings, in which:
FIG. 1 is a schematic structural view of the present invention;
the labels in the figure are: 1-crystallizer, 2-flash evaporator, 3-condenser, 31-steam inlet and outlet, 32-coolant liquid inlet, 33-coolant liquid outlet, 34-condensate liquid outlet, 35-noncondensable gas outlet, 4-circulating pump, 41-circulating pump inlet end, 42-circulating pump outlet end, 5-central conduit, 51-central conduit outlet end, 6-salt slurry outlet, 7-mother liquid outlet, 8-feed inlet, 9-feed pipe, 10-strong brine input pipe, 11-steam outlet, 12-steam conduit, and 13-vacuum pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; mechanical connection or electrical connection can be realized; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the two original pieces can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a vacuum type evaporates crystallization device in succession, includes crystallizer, flash vessel, condenser, the crystallizer roof is provided with the circulating pump, the circulating pump entrance point of circulating pump is located the crystallizer, the circulating pump exit end of circulating pump is located the crystallizer outside, flash vessel diapire intercommunication has central pipe, central pipe stretches into in the crystallizer just the central pipe exit end of central pipe is close to the inner diapire of crystallizer, crystallizer lateral wall lower part is provided with the salt thick liquid export, crystallizer lateral wall upper portion is provided with the mother liquor export, the lateral wall of flash vessel is provided with the feed inlet, the feed inlet passes through inlet pipe and circulating pump exit end intercommunication, the inlet pipe still communicates there is the strong brine input pipe, it is provided with steam outlet to lie in the feed inlet top on the lateral wall of flash vessel, the condenser still is provided with steam input port, coolant liquid inlet, coolant liquid outlet, condensate output port, steam outlet passes through steam conduit and steam input port intercommunication.
Furthermore, the condenser is also provided with a non-condensable gas output port which is communicated with a vacuum pump.
Furthermore, the inlet end of the circulating pump is positioned above the inside of the crystallizer and close to one side of the inner top wall of the crystallizer.
The utility model discloses in the implementation, external strong brine passes through the strong brine input tube input and mixes the back with the feed liquid that the circulating pump sucked out from crystallizer upper portion in the feeder tube and gets into the flash vessel from the feed inlet. Because the interior of the flash evaporator is in a vacuum state, the feed liquid is concentrated after being flashed in the flash evaporator to form supersaturation degree. Steam generated by flash evaporation is discharged from a steam outlet and is introduced into the condenser through a steam guide pipe, cooling liquid sent from the outside enters the condenser from a cooling liquid inlet of the condenser to exchange heat with flash evaporation steam in the condenser, the cooling liquid is discharged from a cooling liquid outlet after absorbing heat, condensate is formed after the steam exchanges heat, and the condensate is discharged from a condensate outlet port. The supersaturated solution after flash evaporation is inserted into a central conduit at the bottom of the crystallizer by a flash evaporator, is conveyed to the bottom of the crystallizer and slowly moves upwards, and the supersaturation degree is continuously released in the upward movement process. The crystal grains grow up in the upward movement process, and when the crystal grains reach the height of the salt slurry outlet, the crystal grains are discharged out of the crystallizer from the salt slurry outlet. After the large-particle salt slurry is discharged, the temperature of the feed liquid is increased due to the absorption of crystallization heat in the crystallization process, fine crystal grains are dissolved, and the feed liquid is not saturated any more. Along with continuous evaporation and concentration, the mother liquor is opened to discharge after other impurity components reach a certain concentration, and the mother liquor is uniformly discharged from a mother liquor outlet. The device has continuous feeding, solution crystallization, discharging and heat exchange, and controls the flash evaporation strength by controlling the vacuum degree of the flash evaporator, thereby ensuring the crystallization speed, the crystallization granularity and the stability of the device. The whole device has the advantages of simple structure, small occupied area, outdoor installation, simple operation, realization of full-automatic control and low labor intensity. The device can operate at normal pressure and has high safety. The evaporation process has no heat exchange surface, thus fundamentally solving the problem of scar and pipe blockage and ensuring the long-time continuous and stable operation of the device. Meanwhile, the crystallization process is continuous, the crystallization temperature is low, the interior of the crystallizer is not stirred, the crystal growth environment is mild, and the method is particularly suitable for culturing large-particle crystal products.
In a preferred embodiment, the condenser is further provided with a non-condensable gas output port, and the non-condensable gas output port is communicated with a vacuum pump. Through this setting, the noncondensable gas that gets into in the condenser along with steam can be by the suction discharge of vacuum pump by force, ensures that whole device operation is stable.
Specifically, the inlet end of the circulating pump is positioned above the inside of the crystallizer and close to one side of the inner top wall of the crystallizer.
Example 1
The utility model provides a vacuum type evaporates crystallization device in succession, includes crystallizer, flash vessel, condenser, the crystallizer roof is provided with the circulating pump, the circulating pump entrance point of circulating pump is located the crystallizer, the circulating pump exit end of circulating pump is located the crystallizer outside, flash vessel diapire intercommunication has central pipe, central pipe stretches into in the crystallizer just the central pipe exit end of central pipe is close to the inner diapire of crystallizer, crystallizer lateral wall lower part is provided with the salt thick liquid export, crystallizer lateral wall upper portion is provided with the mother liquor export, the lateral wall of flash vessel is provided with the feed inlet, the feed inlet passes through inlet pipe and circulating pump exit end intercommunication, the inlet pipe still communicates there is the strong brine input pipe, it is provided with steam outlet to lie in the feed inlet top on the lateral wall of flash vessel, the condenser still is provided with steam input port, coolant liquid inlet, coolant liquid outlet, condensate output port, steam outlet passes through steam conduit and steam input port intercommunication.
Through this setting, external strong brine passes through the input of strong brine input tube and mixes the back and gets into in the flash vessel from the feed inlet with the feed liquid that the circulating pump sucked out from crystallizer upper portion in the feeder pipe. Because the interior of the flash evaporator is in a vacuum state, the feed liquid is concentrated after being flashed in the flash evaporator to form supersaturation. Steam generated by flash evaporation is discharged from a steam outlet and is introduced into the condenser through a steam guide pipe, cooling liquid sent from the outside enters the condenser from a cooling liquid inlet of the condenser to exchange heat with flash evaporation steam in the condenser, the cooling liquid is discharged from a cooling liquid outlet after absorbing heat, condensate is formed after the steam exchanges heat, and the condensate is discharged from a condensate outlet port. The super-saturated solution after flash evaporation is inserted into a central conduit at the bottom of the crystallizer by a flash evaporator, is conveyed to the bottom of the crystallizer and slowly moves upwards, and the supersaturation is continuously released in the upward movement process. The crystal grains grow up in the upward movement process, and when the crystal grains reach the height of the salt slurry outlet, the crystal grains are discharged out of the crystallizer from the salt slurry outlet. After the large-particle salt slurry is discharged, the temperature of the feed liquid is increased due to the absorption of crystallization heat in the crystallization process, fine crystal grains are dissolved, and the feed liquid is not saturated any more. Along with continuous evaporation and concentration, the mother liquor is opened to discharge after other impurity components reach a certain concentration, and the mother liquor is uniformly discharged from a mother liquor outlet. The device has continuous feeding, solution crystallization, discharging and heat exchange, and controls the flash evaporation strength by controlling the vacuum degree of the flash evaporator, thereby ensuring the crystallization speed, the crystallization granularity and the stability of the device. The whole device has the advantages of simple structure, small occupied area, outdoor installation, simple operation, realization of full-automatic control and low labor intensity. The device can operate at normal pressure and has high safety. The evaporation process has no heat exchange surface, thus fundamentally solving the problem of scabbing and pipe plugging and ensuring the continuous and stable operation of the device for a long time. Meanwhile, the crystallization process is continuous, the crystallization temperature is low, the interior of the crystallizer is not stirred, the crystal growth environment is mild, and the method is particularly suitable for culturing large-particle crystal products.
Example 2
On the basis of embodiment 1, the condenser is further provided with a non-condensable gas output port, and the non-condensable gas output port is communicated with a vacuum pump. Through this setting, the noncondensable gas that gets into in the condenser along with steam can be by the suction discharge of vacuum pump by force, ensures that whole device operation is stable.
Example 3
On the basis of the embodiment, the inlet end of the circulating pump is positioned above the interior of the crystallizer and close to one side of the top wall of the interior of the crystallizer.
The embodiments of the present invention are described above. The foregoing is the preferred embodiments of the present invention, and if the preferred embodiments in the preferred embodiments are not obviously contradictory or are based on a certain preferred embodiment, the preferred embodiments can be combined and used by any superposition, and the specific parameters in the embodiments are only for clearly representing the verification process of the present invention, and are not used to limit the patent protection scope of the present invention, which is still subject to the claims, and all equivalent changes made by applying the description of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a continuous evaporation crystallization device of vacuum type, a serial communication port, including crystallizer (1), flash vessel (2), condenser (3), crystallizer (1) roof is provided with circulating pump (4), circulating pump entrance point (41) of circulating pump (4) are located crystallizer (1), circulating pump exit end (42) of circulating pump (4) are located crystallizer (1) outside, flash vessel (2) diapire intercommunication has central pipe (5), just in central pipe (5) stretch into crystallizer (1) central pipe exit end (51) of central pipe (5) are close to the inner bottom wall of crystallizer (1), crystallizer (1) lateral wall lower part is provided with salt thick liquid export (6), crystallizer (1) lateral wall upper portion is provided with mother liquor export (7), the lateral wall of flash vessel (2) is provided with feed inlet (8), feed inlet (8) are through feed inlet pipe (9) and circulating pump exit end (42) intercommunication, feed inlet pipe (9) still communicate there are strong brine input pipe (10), it is provided with steam outlet (11) to lie in feed inlet (8) top of flash vessel (2) on the lateral wall of flash vessel (2), still be provided with steam inlet port (31), condenser (31) cooling inlet (31), condenser (31) are provided with steam outlet (31), inlet port (11), condenser (31) and condenser (31) are provided with A cooling liquid outlet (33) and a condensate outlet (34), wherein the steam outlet (11) is communicated with the steam inlet port (31) through a steam conduit (12).
2. A vacuum type continuous evaporative crystallization apparatus as set forth in claim 1, wherein the condenser (3) is further provided with a noncondensable gas outlet port (35), and the noncondensable gas outlet port (35) is communicated with the vacuum pump (13).
3. A vacuum type continuous evaporative crystallization apparatus as set forth in claim 1, wherein said inlet port (41) of the circulating pump is located on the side of the inner top wall of the crystallizer (1) above the inside of the crystallizer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223160456.3U CN218589717U (en) | 2022-11-28 | 2022-11-28 | Vacuum type continuous evaporation crystallization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223160456.3U CN218589717U (en) | 2022-11-28 | 2022-11-28 | Vacuum type continuous evaporation crystallization device |
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| Publication Number | Publication Date |
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| CN218589717U true CN218589717U (en) | 2023-03-10 |
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| CN202223160456.3U Active CN218589717U (en) | 2022-11-28 | 2022-11-28 | Vacuum type continuous evaporation crystallization device |
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