CN217585052U - Exempt from to stir transfer cooling cauldron - Google Patents
Exempt from to stir transfer cooling cauldron Download PDFInfo
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- CN217585052U CN217585052U CN202221656380.0U CN202221656380U CN217585052U CN 217585052 U CN217585052 U CN 217585052U CN 202221656380 U CN202221656380 U CN 202221656380U CN 217585052 U CN217585052 U CN 217585052U
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Abstract
The utility model discloses an exempt from to stir transfer cooling cauldron relates to indirect heating equipment technical field, the reactor comprises a kettle, the upper portion of the cauldron body, bottom are equipped with feed inlet, discharge gate respectively, be equipped with guiding device, cooling device in the feed inlet, wherein: the flow guide device comprises a pore plate and a plurality of flow guide pipes, the pore plate plugs the feed inlet, a plurality of through holes are uniformly distributed on the pore plate, the flow guide pipes are communicated with the through holes, outlets of the flow guide pipes are downward and are uniformly distributed on a plurality of circles, and the circle center of each circle is the intersection point of the axis of the kettle body and the horizontal plane; the cooling device is positioned right below the flow guide device and comprises a circulating pump and a cooling coil, the cooling coil is arranged in the kettle body and is arranged along the horizontal direction, and the circulating pump is used for injecting cooling water into the cooling coil; and a temperature measuring device is arranged on the side wall of the kettle body. The utility model is used for the solute of different crystallization temperature in the separation solution has the advantage that the temperature is even, the separation is effectual.
Description
Technical Field
The utility model relates to a indirect heating equipment technical field specifically is an exempt from to stir transfer cooling cauldron.
Background
The desulfurization waste liquid is waste liquid generated from a coking desulfurization device and contains a large amount of ammonium thiocyanate, ammonium thiosulfate,
The extraction process mainly comprises the processes of decolorization, evaporative concentration, cooling crystallization, filtration, secondary cooling, separation and the like, and finally the obtained crystal is the ammonium thiocyanate. Wherein, the evaporation concentration is carried out in a concentration kettle, and the temperature reduction crystallization is carried out in a transfer temperature reduction kettle.
Current transfer cooling cauldron is passed through the cooling shell that the external portion of cauldron set up and inside heat exchange tube as cooling device more to use the circulating water to cool off, inside sets up the stirring rake stirring, makes the internal concentrate of cauldron keep the temperature as far as possible even, avoids local temperature to hang down to lead to ammonium thiocyanate to separate out in advance, and sneak into in the crystallization of ammonium sulfate and ammonium thiosulfate. However, because the stirring rake sets up the central part in the cauldron body more, occupy the internal great space of cauldron, lead to the heat exchange tube to set up the position that is close to the inner wall in the cauldron internal side only, can't set up in cauldron body middle part, the central part high temperature of cauldron body can appear when the cooling, the phenomenon that stirring rake outside temperature is low, produce great difference in temperature, make ammonium thiocyanate appear in advance near the internal wall of cauldron, and make ammonium sulfate and ammonium thiosulfate incompletely appear and sneak into in the ammonium thiocyanate solution, lead to the ammonium thiocyanate yield that makes, purity to reduce.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an: the stirring-free transfer cooling kettle has the advantage of uniform temperature, and solves the problems in the prior art.
The utility model adopts the technical scheme as follows:
the utility model provides an exempt from to stir transfer cooling cauldron, includes the cauldron body, upper portion, the bottom of the cauldron body are equipped with feed inlet, discharge gate respectively, be equipped with guiding device, cooling device in the feed inlet, wherein:
the flow guide device comprises a pore plate and a plurality of flow guide pipes, the pore plate plugs the feed inlet, a plurality of through holes are uniformly distributed on the pore plate, the flow guide pipes are communicated with the through holes, outlets of the flow guide pipes are downward and are uniformly distributed on a plurality of circles, and the circle center of each circle is the intersection point of the axis of the kettle body and the horizontal plane;
the cooling device is positioned right below the flow guide device and comprises a circulating pump and a cooling coil, the cooling coil is arranged in the kettle body and is arranged along the horizontal direction, and the circulating pump is used for injecting cooling water into the cooling coil;
and a temperature measuring device is arranged on the side wall of the kettle body.
Preferably, the cooling coil comprises first spiral pipe and second spiral pipe, first spiral pipe and the export intercommunication of circulating pump, the spiral center department intercommunication of first spiral pipe, second spiral pipe, the spiral arm interval arrangement of first spiral pipe, second spiral pipe.
Preferably, the honeycomb duct includes first honeycomb duct, second honeycomb duct, third honeycomb duct, the export of first honeycomb duct, second honeycomb duct, third honeycomb duct is located the circle of 3 different diameters respectively.
Preferably, the cooling device and the temperature measuring device are provided with 3 groups and arranged from top to bottom.
Preferably, the outlets of the first flow guide pipe, the second flow guide pipe and the third flow guide pipe are sequentially arranged from top to bottom and from outside to inside.
Preferably, the temperature measuring device comprises a first thermometer and a second thermometer, the first thermometer is located at the joint of the first spiral pipe and the kettle body, and the second thermometer is located at the joint of the second spiral pipe and the kettle body.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
(1) The stirring paddle is cancelled, and the hot solution entering the kettle body is uniformly spread on the liquid level in the kettle body through the flow guide device, so that the temperature distribution of the upper layer solution in the kettle body is more uniform, and the condition that the solution temperature below the feeding hole is far higher than the solution temperature at the inner wall is avoided;
(2) The cooling coil pipe is horizontally arranged to cool the solution, the cooling coil pipe is composed of a first spiral pipe and a second spiral pipe, the spiral center of the first spiral pipe and the spiral center of the second spiral pipe are communicated, the first spiral pipe and the spiral arms of the second spiral pipe are arranged at intervals, the first spiral pipe is connected with a circulating pump, the temperature of circulating water inside the first spiral pipe is lower than that of the second spiral pipe, the spiral arms of the first spiral pipe and the second spiral pipe are arranged at intervals, so that different areas at the same height in the kettle body are uniformly cooled, the temperature difference is avoided, and particularly, the temperature difference between the inner wall of the kettle body and the center of the kettle body is avoided;
(3) Through setting up the cooling device that the multiunit was arranged from top to bottom, can carry out cascaded cooling to the internal solution of entering cauldron, make the internal solution of cauldron from top to bottom temperature reduce gradually, the temperature of the control discharge gate department of being convenient for makes the discharge gate temperature more stable.
Drawings
Fig. 1 is a perspective view of embodiment 1.
Fig. 2 is a bottom view of the draft tube.
Fig. 3 is a front view of the draft tube.
Fig. 4 is a top view of the cooling coil in example 2.
Fig. 5 is a perspective view of embodiment 3.
Fig. 6 is a perspective view of embodiment 4.
The labels in the figure are: 1. a kettle body; 101. a feed inlet; 102. a discharge port; 201. an orifice plate; 202. a flow guide pipe; 2011. a through hole; 2021. a first draft tube; 2022. a second draft tube; 2023. a third draft tube; 301. a circulation pump; 302. a cooling coil; 3021. a first spiral pipe; 3022. a second spiral pipe; 401. a first thermometer; 402. a second thermometer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following detailed description of the present invention is made with reference to the accompanying drawings and examples, and it should be understood that the specific examples described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention.
Example 1
As shown in fig. 1 to 3, the embodiment provides a stirring-free transfer cooling kettle, which is used for a cooling crystallization process in an ammonia thiocyanate production process and a similar process in the production of other chemical products, and comprises a kettle body 1, wherein a feed inlet 101 and a discharge outlet 102 are respectively arranged at the upper part and the bottom of the kettle body 1, the feed inlet 101 is used for injecting a solution to be cooled, the discharge outlet 102 is used for discharging the cooled solution and crystals possibly generated in the cooling process, and a flow guide device and a cooling device are arranged in the feed inlet 101.
The guiding device comprises a hole plate 201 and a plurality of guiding pipes 202, the hole plate 201 plugs the feeding hole 101, a plurality of through holes 2011 with the same diameter are uniformly distributed on the hole plate 201, the guiding pipes 202 and the through holes 2011 are communicated, the outlets of the guiding pipes 202 are downward and uniformly distributed on a plurality of circles, and the circle centers of the circles are intersection points of the axis of the kettle body 1 and the horizontal plane.
More specifically, the flow guide tube 202 includes 12 first flow guide tubes 2021, 8 second flow guide tubes 2022 and 4 third flow guide tubes 2023, the outlets of the first flow guide tube 2021, the second flow guide tube 2022 and the third flow guide tube 2023 are respectively located on 3 circles with different diameters, and the outlets are sequentially arranged from top to bottom and from outside to inside.
Through the arrangement, the solution entering the feed inlet 101 is blocked by the orifice plate 201, and respectively enters the first flow guide pipe 2021, the second flow guide pipe 2022 and the third flow guide pipe 2023 through the through holes 2011, and after the solution flows out from the outlets of the first flow guide pipe 2021, the second flow guide pipe 2022 and the third flow guide pipe 2023, the falling solution is uniformly spread on the cross section of the kettle body 1, so that all parts of the liquid level in the kettle body 1 can be supplemented with the solution to be cooled, and the solution can be uniformly distributed into the flow guide pipes 202 because the diameters of the through holes 2011 are the same, and the flow of the flow guide pipe 202 close to the central part is not larger than that of other flow guide pipes 202.
Cooling device is located the guiding device under, cool down the solution that gets into the cauldron body 1 through the cooling water, cooling device includes circulating pump 301, cooling coil 302 installs in cauldron body 1 inside and sets up along the horizontal direction, circulating pump 301 is used for pouring into the cooling water into cooling coil 302, specifically, circulating pump 301's export and cooling coil 302's entry intercommunication, cooling coil 302 is the single heliciform, its entry is located the cantilever in the outside, the export is located spiral central point, communicate through 1 straight pipeline of spiral center below to cauldron body 1 outside, with the cooling water of discharging.
The side wall of the kettle body 1 is provided with a temperature measuring device 4, and the temperature measuring device 4 is a thermocouple and is positioned below the cooling coil 302 and used for measuring the temperature of the cooled solution.
Taking the production of ammonium thiocyanate as an example, the working process of the stirring-free transfer cooling kettle is as follows:
s1: injecting the solution to be cooled from the feed inlet 101, and uniformly falling after being divided by the orifice plate 201 and the flow guide pipe 202;
s2: cooling water is injected into the cooling coil 302 through the circulating pump 301, the flow rate of the cooling water is adjusted according to the temperature measured by the temperature measuring device 4, and the cooling water discharged by the cooling coil 302 is sent to a boiler room through a pipeline for further heating or is sent to other water using places for secondary utilization;
s3: the solution cooled by the cooling coil 302 is separated into ammonium sulfate and ammonium thiosulfate crystals, discharged from the discharge port 102 and sent to a filtering device for separation.
The above process is intermittent operation, and a stable system can be established by controlling the flow of the solution and the cooling water, so that the cooling process is continuously carried out, continuous feeding and discharging are realized, a person skilled in the art can automatically adjust the system according to actual production needs, and a specific adjusting method belongs to conventional operation in the field and is not described any more.
Example 2
On the basis of embodiment 1, the present embodiment improves the cooling manner, and specifically, the present embodiment is different from embodiment 1 in that:
the cooling coil 302 is composed of a first spiral pipe 3021 and a second spiral pipe 3022, the first spiral pipe 3021 is communicated with an outlet of the circulating pump 301, the spiral centers of the first spiral pipe 3021 and the second spiral pipe 3022 are communicated, and the spiral arms of the first spiral pipe 3021 and the second spiral pipe 3022 are arranged at intervals, as shown in fig. 4.
Through the above arrangement, when the cooling water enters the cooling coil 302, the cooling water enters from the inlet of the first spiral pipe 3021, and is discharged from the outlet of the second spiral pipe 3022, because the cooling water flows in the cooling coil 302, and is constantly heated, the temperature of the cooling water constantly rises, the cooling coil 302 structure of embodiment 1 can cause the temperature of the cooling water at the center of the cooling coil 302 to be higher than that of the cantilever at the outer side, which is not beneficial to the uniform cooling of the solution, and in the embodiment, because the temperature of the cooling water in the second spiral pipe 3022 is higher than that of the first spiral pipe 3021, and the cantilever interval arrangement between the first and second spiral pipes makes the cooling effect at the center and the cooling effect at the outer side of the cooling coil 302 tend to be consistent, and the temperature of the cooling water at the center of the cooling coil 302 is higher than that of the cantilever at the outer side is avoided.
Example 3
The present embodiment is further improved on the basis of embodiment 2, and specifically, the present embodiment is different from embodiment 2 in that:
the cooling device and the temperature measuring device 4 are provided with 3 groups and are arranged from top to bottom as shown in figure 5.
Through the setting, can divide into the triplex with the cooling water by the one, carry out cascaded cooling to the solution that gets into the cauldron body 1, be favorable to carrying out more accurate regulation to the solution temperature in the cauldron body 1, avoid discharge gate 102 exhaust solution temperature too high or low excessively, solve the problem that ammonium sulfate and ammonium thiosulfate crystallization are incomplete or ammonium thiocyanate crystallization is appeared in advance.
In other embodiments, the cooling device and the temperature measuring device 4 can be arranged in any number of groups, not limited to 3 groups.
Example 4
In order to more accurately monitor whether the temperature distribution of the solution in the kettle body 1 is uniform, the following improvements are made on the basis of the embodiment 3, and specifically, the differences from the embodiment 3 are that:
the temperature measuring device 4 comprises a first thermometer 401 and a second thermometer 402, wherein the first thermometer 401 is positioned at the joint of the first spiral pipe 3021 and the kettle body 1, and the second thermometer 402 is positioned at the joint of the second spiral pipe 3022 and the kettle body 1, as shown in fig. 6.
Through the above arrangement, the solution temperatures at the cooling water inlet side and the cooling water outlet side in the kettle body 1 can be measured simultaneously to check whether the solution temperatures in the same horizontal plane are uniform.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides an exempt from to stir transfer cooling cauldron, includes the cauldron body (1), upper portion, the bottom of the cauldron body (1) are equipped with feed inlet (101), discharge gate (102) respectively, its characterized in that, be equipped with guiding device, cooling device in feed inlet (101), wherein:
the flow guide device comprises a pore plate (201) and a plurality of flow guide pipes (202), the pore plate (201) blocks the feed inlet (101), a plurality of through holes (2011) are uniformly distributed on the pore plate (201), the flow guide pipes (202) are communicated with the through holes (2011), outlets of the flow guide pipes (202) are downward and uniformly distributed on a plurality of circles, and the circle center of each circle is the intersection point of the axis of the kettle body (1) and the horizontal plane;
the cooling device is positioned right below the flow guide device and comprises a circulating pump (301) and a cooling coil (302), the cooling coil (302) is installed inside the kettle body (1) and arranged along the horizontal direction, and the circulating pump (301) is used for injecting cooling water into the cooling coil (302);
and a temperature measuring device (4) is arranged on the side wall of the kettle body (1).
2. The stirring-free transfer cooling kettle as claimed in claim 1, wherein the cooling coil (302) is composed of a first spiral pipe (3021) and a second spiral pipe (3022), the first spiral pipe (3021) is communicated with the outlet of the circulating pump (301), the spiral centers of the first spiral pipe (3021) and the second spiral pipe (3022) are communicated, and the spiral arms of the first spiral pipe (3021) and the second spiral pipe (3022) are arranged at intervals.
3. The stirring-free intermediate cooling kettle of claim 1, wherein the flow guide pipe (202) comprises a first flow guide pipe (2021), a second flow guide pipe (2022) and a third flow guide pipe (2023), and outlets of the first flow guide pipe (2021), the second flow guide pipe (2022) and the third flow guide pipe (2023) are respectively located on circles with 3 different diameters.
4. The stirring-free transfer cooling kettle of claim 2, wherein 3 groups of cooling devices and temperature measuring devices (4) are arranged from top to bottom.
5. The stirring-free transfer cooling kettle of claim 3, wherein the outlets of the first draft tube (2021), the second draft tube (2022) and the third draft tube (2023) are sequentially arranged from top to bottom and from outside to inside.
6. The stirring-free transfer cooling kettle of claim 4, wherein the temperature measuring device (4) comprises a first thermometer (401) and a second thermometer (402), the first thermometer (401) is located at the joint of the first spiral pipe (3021) and the kettle body (1), and the second thermometer (402) is located at the joint of the second spiral pipe (3022) and the kettle body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221656380.0U CN217585052U (en) | 2022-06-30 | 2022-06-30 | Exempt from to stir transfer cooling cauldron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221656380.0U CN217585052U (en) | 2022-06-30 | 2022-06-30 | Exempt from to stir transfer cooling cauldron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217585052U true CN217585052U (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221656380.0U Active CN217585052U (en) | 2022-06-30 | 2022-06-30 | Exempt from to stir transfer cooling cauldron |
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| Country | Link |
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| CN (1) | CN217585052U (en) |
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- 2022-06-30 CN CN202221656380.0U patent/CN217585052U/en active Active
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