CN211419593U - Device for slowing down soft caking of anhydrous sodium sulphate after drying and production system - Google Patents
Device for slowing down soft caking of anhydrous sodium sulphate after drying and production system Download PDFInfo
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- CN211419593U CN211419593U CN201921685154.3U CN201921685154U CN211419593U CN 211419593 U CN211419593 U CN 211419593U CN 201921685154 U CN201921685154 U CN 201921685154U CN 211419593 U CN211419593 U CN 211419593U
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- anhydrous sodium
- sodium sulphate
- drying
- air distribution
- soft
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Abstract
The utility model discloses a slow down device of soft knot of anhydrous sodium sulphate drying back, including receiving the feed bin, be provided with the feed inlet on the receiving the feed bin, receiving the feed bin bottom and being provided with the discharge gate, be provided with the cloth wind device that is arranged in promoting the anhydrous sodium sulphate fine particle in the receiving the feed bin, cloth wind device and dry air supply intercommunication, still be provided with the air exit on the receiving bin. The utility model discloses can reduce the content of the fine granule that easily absorbs water in the anhydrous sodium sulphate, slow down the emergence of the soft caking of anhydrous sodium sulphate. The application also discloses a production system comprising the device.
Description
Technical Field
The utility model belongs to the technical field of anhydrous sodium sulphate production facility, concretely relates to slow down device and production system of anhydrous sodium sulphate dry back soft caking.
Background
The anhydrous sodium sulfate is produced by evaporating and concentrating a solution containing sodium sulfate to reach a saturated concentration to form sodium sulfate crystals, centrifugally separating the sodium sulfate crystals to obtain a semi-finished product with the water content of less than 5%, drying the semi-finished product to obtain an anhydrous sodium sulfate product with the water content of less than 0.05%, and the anhydrous sodium sulfate is easy to generate soft lumps to influence the use of customers due to various factors such as crystal particle size, water, moisture absorption and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the device for slowing down the soft caking of the dried anhydrous sodium sulphate is provided, and is favorable for slowing down the soft caking phenomenon of the anhydrous sodium sulphate after drying.
The utility model adopts the technical scheme as follows:
the utility model provides a slow down device of anhydrous sodium sulphate dry back soft knot, includes and receives the feed bin, receive and be provided with the feed inlet on the feed bin, receive the feed bin bottom and be provided with the discharge gate, be provided with the cloth wind device that is arranged in promoting the anhydrous sodium sulphate fine particle in the feed bin, cloth wind device and dry air supply intercommunication, still be provided with the air exit on receiving the feed bin.
Preferably, the air distribution device is positioned below the feed inlet.
Preferably, the air distribution device is an air distribution plate.
Preferably, a heat exchange pipe is further arranged in the material receiving bin.
Preferably, the heat exchange tube is arranged above the air distribution device.
Preferably, the wind distribution device is provided with a baffle plate in an extending manner.
Preferably, the baffle top ends are higher than the heat exchange tube top ends.
Preferably, the feed inlet is 600mm higher than the baffle 400.
A anhydrous sodium sulphate production system comprises the device for slowing down soft caking of anhydrous sodium sulphate after drying.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
because the fine particles (or dust-grade anhydrous sodium sulfate particles) in the anhydrous sodium sulfate are dispersed among the ordinary anhydrous sodium sulfate particles, the fine anhydrous sodium sulfate particles are easy to absorb water and dissolve, so that the surfaces of the ordinary anhydrous sodium sulfate particles are adhered to form soft lumps. The utility model discloses a device carries the tiny granule that easily absorbs water (or the anhydrous sodium sulphate granule of dust rank) from the air exit through dry air current and discharges to reduce the content of the tiny granule that easily absorbs water in the anhydrous sodium sulphate, slow down the emergence of the soft caking of anhydrous sodium sulphate. In addition, the airflow has a cooling effect on anhydrous sodium sulphate entering the receiving bin, and the reduction of the temperature of the anhydrous sodium sulphate is also beneficial to slowing down soft caking.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that 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 for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a device for reducing the soft caking of dried anhydrous sodium sulphate according to the present invention;
FIG. 2 is a schematic diagram of a part of the structure of a anhydrous sodium sulfate production system;
the labels in the figure are: 1-a material receiving bin, 2-a material inlet, 3-a material outlet, 4-an air distribution device, 5-an air outlet, 6-a heat exchange tube, 7-a dryer, 8-a cyclone separator, 9-an air blower, 10-a gas drying device, 11-a dust remover, 12-an induced draft fan, 13-a vibrating screen, 14-a cold water source and 15-a baffle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the 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 embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The utility model provides a slow down device of anhydrous sodium sulphate dry back soft knot, including receiving feed bin 1, receive and be provided with feed inlet 2 on the feed bin 1, receive 1 bottoms in feed bin and be provided with discharge gate 3, be provided with the cloth wind device 4 that is arranged in promoting the fine particle in the anhydrous sodium sulphate in the feed bin 1, cloth wind device 4 and dry air supply intercommunication, still be provided with air exit 5 on receiving feed bin 1.
After the dried anhydrous sodium sulfate enters the receiving bin 1 from the feeding hole 2, the anhydrous sodium sulfate falls freely in the receiving bin 1. The dry airflow introduced by the air distribution device 4 carries the fine particles (or the anhydrous sodium sulphate particles at the dust level) which are easy to absorb water in the anhydrous sodium sulphate to be discharged from the air outlet 5, thereby reducing the content of the fine particles which are easy to absorb water in the anhydrous sodium sulphate. The fine anhydrous sodium sulphate particles taken away by the airflow can be re-dissolved and reused, and the anhydrous sodium sulphate falling at the bottom of the receiving bin 1 is discharged through the discharge port 3. Because the fine particles (or dust-grade anhydrous sodium sulfate particles) in the anhydrous sodium sulfate are dispersed among the ordinary anhydrous sodium sulfate particles, the fine anhydrous sodium sulfate particles are easy to absorb water and dissolve, so that the surfaces of the ordinary anhydrous sodium sulfate particles are adhered to form soft lumps. Compared with the prior art, through the utility model discloses contain less tiny granule (or dust level's anhydrous sodium sulphate granule) in the anhydrous sodium sulphate that the device obtained to slow down the soft emergence of agglomerating of anhydrous sodium sulphate.
When the device is in operation, the air distribution device 4 and the air outlet 5 play a role in forming updraft in the material receiving bin 1, the introduced dry air flow has a cooling effect on anhydrous sodium sulphate entering the material receiving bin 1, and meanwhile, the temperature reduction of the anhydrous sodium sulphate is also beneficial to slowing down soft caking. The type of the air distribution device 4 and the connection condition of the air outlet 5 can be selected according to actual needs, so that the whole device can effectively remove fine anhydrous sodium sulphate particles (or anhydrous sodium sulphate particles at the dust level) without influencing the falling of the anhydrous sodium sulphate particles with common sizes. During the in-service use, can be connected air distributor 4 and air-blower 9, be provided with gas drying device 10 between air-blower 9 and air distributor 4, air exit 5 is connected with draught fan 12, is provided with dust remover 11 between draught fan 12 and air exit 5, can receive the velocity of flow of updraft in the feed bin 1 through air-blower 9 and draught fan 12 control, and the velocity of flow can be decided according to concrete production conditions, and the preferred velocity of flow of updraft of this scheme is 4-5 meters per second.
After the anhydrous sodium sulphate is treated by the device of the utility model, the content change condition of the fine particles is shown in table 1, the content change of the particles in several size ranges of the fine particles in the anhydrous sodium sulphate and the particles in each range after the device is given in table 1, and as can be seen from table 1, the content of the fine particles in the anhydrous sodium sulphate is reduced wholly after the treatment, and is reduced in each size range, especially, the reduction range below 0.074mm is maximum, and the reduction range of the fine particles in-0.106 +0.074mm and-0.15 +0.106mm size ranges is second.
TABLE 1 content variation of finer particles in anhydrous sodium sulphate
| Size fraction range of finer particles in anhydrous sodium sulfate/mm | Original content/%) | Content/percentage of the content after the treatment by the apparatus |
| -0.074 | 8.5-12.5 | 3.6-7.7 |
| -0.106+0.074 | 7.5-11.5 | 5.8-9.7 |
| -0.15+0.106 | 9.5-13 | 8.5-11.5 |
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The utility model discloses the device that the dry back soft knot of anhydrous sodium sulphate was slowed down that preferred embodiment provided, cloth wind device 4 is located feed inlet 2 below, cloth wind device 4 is the air distribution plate.
The working principle of the embodiment is as follows: the air distribution device 4 is positioned below the feed inlet 2, which is beneficial to the full contact of the airflow generated by the air distribution device 4 and the anhydrous sodium sulphate particles falling from the feed inlet 2 and the lifting of the fine particles in the anhydrous sodium sulphate by the airflow. The air distribution plate is selected as the air distribution device 4 in the embodiment, the common air distribution plate with the hood can be selected as the air distribution plate, and other air distribution devices can also be adopted.
Example 2
The device for slowing down the soft caking of the anhydrous sodium sulphate after drying provided on the basis of the embodiment 1 is characterized in that a heat exchange tube 6 is further arranged in the material receiving bin 1.
The working principle of the embodiment is as follows: the heat exchange tube 6 is used for cooling the anhydrous sodium sulphate in the receiving bin 1 and cooling the anhydrous sodium sulphate in the receiving bin 1 by combining the airflow of the air distribution device 4. The cooling medium circularly flows in the heat exchange tube 6, can be connected with a cold water source 14, and adopts water as the cooling medium. By adopting the device of the utility model, the feeding temperature of the anhydrous sodium sulphate is 60-70 ℃, and the discharging temperature is reduced to 35-40 ℃.
Example 3
On the basis of embodiment 2, the heat exchange tube 6 is arranged above the air distribution device 4.
The working principle of the embodiment is as follows: the heat exchange tube 6 can be arranged at a specific position according to actual needs as long as the effect of reducing the temperature of the anhydrous sodium sulphate is achieved. In the embodiment, the heat exchange tube 6 is arranged above the air distribution device 4, and the heat exchange tube 6 can be arranged at the bottom of the material receiving groove in actual use.
Example 4
On the basis of embodiment 3, the device for slowing down the soft agglomeration of anhydrous sodium sulphate after drying is provided, the air distribution device 4 is provided with a baffle 15 in an extending manner, and the top end of the baffle 15 is higher than the top end of the heat exchange tube 6.
The working principle of the embodiment is that the baffle 15 arranged on the extension of the air distribution device 4 can form a certain fluidized material layer on the air distribution device 4, the fluidized material layer flows through the baffle 15 after heat exchange of air flow and the heat exchange tube 6, falls on the bottom of the material receiving bin 1 through a gap between the air distribution device 4 and the shell of the material receiving bin 1, and is discharged from the discharge hole 3. In a specific implementation process, the height of the baffle and the airflow velocity of the air distribution device can be selected according to the requirement on the thickness of the fluidized material layer, and in this embodiment, the height of the baffle is preferably 300mm to 400mm, and the corresponding airflow velocity is preferably 6 m/s to 8 m/s.
Example 5
The device for slowing soft caking of the anhydrous sodium sulphate after drying is provided on the basis of the embodiment 4, and the feed inlet 2 is 600mm higher than the baffle 15400.
The working principle of the embodiment is that the vertical distance between the feed inlet 2 and the baffle 15 is 400mm and 600 mm.
Example 6
This embodiment provides a anhydrous sodium sulphate production system, which includes the device for alleviating soft caking of anhydrous sodium sulphate after drying in any one of embodiments 1 to 5.
The working principle of the embodiment is as follows: after the anhydrous sodium sulphate is dried by the dryer 7, the anhydrous sodium sulphate is separated by the cyclone separator 8, the anhydrous sodium sulphate enters the receiving bin 1 through the cyclone separator 8, fine particles (or anhydrous sodium sulphate particles at the dust level) in the anhydrous sodium sulphate are taken out by airflow in the receiving bin 1, and finally an anhydrous sodium sulphate product containing less fine particles is obtained, and the caking tendency of the whole product is slowed down due to the fact that the whole product contains less fine particles.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a slow down soft device that agglomerates of anhydrous sodium sulphate drying back, includes receipts feed bin (1), be provided with feed inlet (2) on receiving feed bin (1), receive feed bin (1) bottom and be provided with discharge gate (3), its characterized in that: the novel anhydrous sodium sulphate collecting device is characterized in that an air distribution device (4) used for lifting fine particles in anhydrous sodium sulphate is arranged in the collecting bin (1), the air distribution device (4) is communicated with a drying air source, and an air outlet (5) is further formed in the collecting bin (1).
2. The device for slowing down the soft caking of anhydrous sodium sulphate after drying as claimed in claim 1, wherein: the air distribution device (4) is positioned below the feed port (2).
3. The apparatus for mitigating the soft caking of anhydrous sodium sulphate after drying as claimed in claim 2, wherein: the air distribution device (4) is an air distribution plate.
4. The device for slowing down the soft caking of anhydrous sodium sulphate after drying as claimed in claim 1, wherein: and a heat exchange pipe (6) is also arranged in the material receiving bin (1).
5. The device for alleviating soft caking of anhydrous sodium sulphate after drying as claimed in claim 4, wherein: the heat exchange tube (6) is arranged above the air distribution device (4).
6. The device for alleviating the soft caking of the anhydrous sodium sulphate after drying as claimed in any one of claims 1 to 5, wherein: the air distribution device (4) is provided with a baffle (15) in an extending way.
7. The device for alleviating soft caking of anhydrous sodium sulphate after drying as claimed in claim 6, wherein: the top end of the baffle (15) is higher than the top end of the heat exchange tube (6).
8. The apparatus for mitigating the soft caking of anhydrous sodium sulphate after drying as claimed in claim 7, wherein: the feed inlet (2) is 400mm higher than the baffle (15) and 600mm higher than the baffle.
9. A anhydrous sodium sulphate production system is characterized in that: a device for slowing down the soft caking of anhydrous sodium sulphate after drying as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921685154.3U CN211419593U (en) | 2019-10-09 | 2019-10-09 | Device for slowing down soft caking of anhydrous sodium sulphate after drying and production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921685154.3U CN211419593U (en) | 2019-10-09 | 2019-10-09 | Device for slowing down soft caking of anhydrous sodium sulphate after drying and production system |
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| Publication Number | Publication Date |
|---|---|
| CN211419593U true CN211419593U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921685154.3U Active CN211419593U (en) | 2019-10-09 | 2019-10-09 | Device for slowing down soft caking of anhydrous sodium sulphate after drying and production system |
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| CN (1) | CN211419593U (en) |
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