Efficient crystallization and saltpeter separation integrated device for saltpeter workshop

Abstract

The utility model discloses an efficient crystallization and nitrate separation integrated device for a salt and nitrate workshop, which comprises a crystallization reaction tank, a stirring shaft is arranged in the crystallization reaction tank, and a plurality of groups of stirring blades are arranged on the outer wall of the stirring shaft; the stirring shaft is internally provided with a conveying channel, the conveying channel and the stirring shaft are coaxially arranged, the outer wall of the stirring shaft is provided with a plurality of groups of conveying holes, the conveying holes are communicated with the conveying channel, the conveying holes are formed in an inner cavity of the crystallization reaction tank, the stirring shaft is further provided with an air inlet assembly, the air inlet assembly is communicated with the conveying channel, and the air inlet assembly is arranged in the inner cavity of the crystallization reaction tank. The high-pressure gas enters the crystallization reaction tank to be disturbed; the crystallization reaction tank has the beneficial effects that high-pressure gas is guided into the conveying channel through the gas inlet assembly, and is guided into the inner cavity of the crystallization reaction tank through the conveying hole, so that strong disturbance on materials is realized, the mixing and mass transfer processes of the materials are promoted, and the crystallization reaction is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to salt and nitre workshop high -efficient crystallization and nitre integration device. BACKGROUND

[0002] In the traditional salt and nitre production process, crystallization and nitre are a key step, and its efficiency and effect directly affect the quality and output of product. In the crystallization and nitre process, the mixing uniformity of material, crystallization rate, crystallization quality and the safety and efficiency of operation are important indexes for measuring the performance of device, and the traditional crystallization and nitre device usually adopts static mixing mode, and the static mixing mode cannot realize the full mixing of material, resulting in that the material is supersaturated or undersaturated in local area during crystallization, and the crystallization quality is affected, in view of this, the utility model provides salt and nitre workshop high -efficient crystallization and nitre integration device to solve the above -mentioned problems. SUMMARY

[0003] The utility model aims at providing salt and nitre workshop high -efficient crystallization and nitre integration device to solve the problems in the above -mentioned background art.

[0004] To achieve the above -mentioned purpose, the utility model provides the following technical scheme:

[0005] Salt and nitre workshop high -efficient crystallization and nitre integration device, including crystallization reaction tank, be provided with the stirring shaft in the crystallization reaction tank, the outer wall of stirring shaft is provided with multiple groups of stirring vane;

[0006] The conveying channel is coaxially arranged with the stirring shaft, a plurality of conveying holes are formed in the outer wall of the stirring shaft, the conveying holes are communicated with the conveying channel, the conveying holes are arranged in the inner cavity of the crystallization reaction tank, and a gas inlet assembly is further arranged on the stirring shaft.

[0007] As an improvement of the above technical scheme, a plurality of gas inlet holes are formed in the outer wall of the stirring shaft, and the plurality of gas inlet holes are arranged in an annular array, and the gas inlet holes are arranged outside the crystallization reaction tank.

[0008] The gas inlet assembly is arranged at the gas inlet hole, and high-pressure gas enters the conveying channel.

[0009] As an improvement of the above technical scheme, gas inlet limiting rings are arranged on both sides of the gas inlet hole.

[0010] The gas inlet assembly comprises a gas inlet sleeve, the gas inlet sleeve is rotationally sealed between the two gas inlet limiting rings, and a gas inlet pipeline is arranged on the gas inlet sleeve.

[0011] As the improvement of the above technical scheme, a plurality of groups of air release channels are arranged in the stirring shaft in a ring array at the periphery of the conveying channel.

[0012] The air release channel is provided with a first air release hole and a second air release hole, the first air release hole is arranged outside the crystallization reaction tank, and the second air release hole is arranged inside the crystallization reaction tank.

[0013] As the improvement of the above technical scheme, the first air release hole is provided with air release limiting rings on both sides, and a rotary sealing air release sleeve is arranged between the two groups of air release limiting rings.

[0014] The air release sleeve is provided with an air release pipeline.

[0015] As the improvement of the above technical scheme, the air release pipeline is provided with an air release valve.

[0016] As the improvement of the above technical scheme, the air release pipeline is provided with an air release valve.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] Through the air inlet assembly, high-pressure gas is introduced into the conveying channel, and then introduced into the inner cavity of the crystallization reaction tank through the conveying hole, so that the material is strongly disturbed, the mixing and mass transfer process of the material is promoted, and the crystallization reaction is accelerated.

[0019] The turbulent state of the material is enhanced by the disturbance of the high-pressure gas, and the contact opportunity of the material and the crystallization core is increased, so that the crystallization rate is improved.

[0020] The disturbance of the high-pressure gas helps to eliminate the local concentration gradient in the crystallization process, so that the material crystallization process in the whole crystallization reaction tank is more uniform, and the disturbance of the high-pressure gas can reduce the local supersaturation phenomenon in the material crystallization process, so as to reduce the crystallization defects and improve the purity and quality of the crystallization product.

[0021] The disturbance of the high-pressure gas can enhance the heat transfer in the crystallization reaction tank, which helps to maintain the uniform temperature of the reaction system and improve the heat transfer efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the utility model Figure 1 It is an enlarged structural schematic diagram of A in the utility model;

[0024] Figure 3It is the front view of the stirring shaft of the utility model;

[0025] Figure 4 It is the front view of the stirring shaft of the utility model Figure 3 It is the sectional view of B-B;

[0026] Figure 5 It is the structural schematic view of the air inlet assembly of the utility model;

[0027] Figure 6 It is the position schematic view of the conveying channel and the conveying hole of the utility model;

[0028] Figure 7 It is the three-dimensional structural schematic view of the stirring shaft of the utility model;

[0029] Figure 8 It is the connection schematic view of the stirring shaft and the air inlet limiting ring of the utility model;

[0030] Figure 9 It is the position schematic view of the conveying pipeline and the connecting pipeline of the utility model.

[0031] In the figure: 10, crystallization reaction tank; 20, stirring shaft; 21, air inlet limiting ring; 22, air inlet hole; 23, conveying channel; 24, air release limiting ring; 25, air release channel; 251, first air release hole; 252, second air release hole; 26, conveying hole; 30, stirring blade; 40, air inlet assembly; 41, air inlet valve; 42, air inlet pipeline; 43, air inlet sleeve; 50, connecting pipeline; 51, connecting valve; 60, air release pipeline; 61, air release valve; 62, air release sleeve. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Embodiment:

[0034] As Figures 1-9 shown, the embodiment provides a high-efficiency crystallization and nitration integrated device for salt and nitrate workshop, which comprises a crystallization reaction tank 10, the crystallization reaction tank 10 is internally provided with a stirring shaft 20, the outer wall of the stirring shaft 20 is provided with a plurality of groups of stirring blades 30;

[0035] The stirring shaft 20 is provided with a conveying channel 23, the conveying channel 23 is coaxially arranged with the stirring shaft 20, a plurality of conveying holes 26 are arranged on the outer wall of the stirring shaft 20, the conveying holes 26 are communicated with the conveying channel 23, the conveying holes 26 are arranged in the inner cavity of the crystallization reaction tank 10, and the stirring shaft 20 is further provided with an air inlet assembly 40, the air inlet assembly 40 is communicated with the conveying channel 23, so that the high-pressure gas enters the crystallization reaction tank 10 to disturb.

[0036] In the case, the stirring shaft 20 is provided with a servo motor for stirring, and the stirring shaft 20 is driven to rotate by the servo motor;

[0037] In the embodiment, when the material in the crystallization reaction tank 10 is stirred to accelerate the crystallization reaction, the material is introduced into the crystallization reaction tank 10, and the stirring shaft 20 rotates to drive the stirring blade 30 to rotate, so as to stir the material in the crystallization reaction tank 10, and the air inlet assembly 40 introduces the high-pressure gas into the conveying channel 23, and then into the inner cavity of the crystallization reaction tank 10 through the conveying holes 26, so as to disturb the material by the high-pressure gas;

[0038] The high-pressure gas is introduced into the conveying channel 23 through the air inlet assembly 40, and then into the inner cavity of the crystallization reaction tank 10 through the conveying holes 26, so as to realize strong disturbance of the material, promote the mixing and mass transfer process of the material, and accelerate the crystallization reaction;

[0039] The disturbance of the high-pressure gas enhances the turbulent state of the material, increases the contact opportunity between the material and the crystallization core, and thus improves the crystallization rate;

[0040] The disturbance of the high-pressure gas helps to eliminate the local concentration gradient in the crystallization process, so that the crystallization process of the material in the whole crystallization reaction tank 10 is more uniform, and the disturbance of the high-pressure gas can reduce the local supersaturation phenomenon in the crystallization process of the material, so as to reduce the crystallization defects and improve the purity and quality of the crystallization product;

[0041] The disturbance of the high-pressure gas can enhance the heat transfer in the crystallization reaction tank 10, which helps to maintain the uniform temperature of the reaction system and improve the heat transfer efficiency.

[0042] Specifically, a plurality of air inlet holes 22 are arranged on the outer wall of the stirring shaft 20, and the plurality of air inlet holes 22 are arranged in a ring array, and the air inlet holes 22 are arranged outside the crystallization reaction tank 10.

[0043] The air inlet assembly 40 is arranged at the air inlet hole 22 to introduce the high-pressure gas into the conveying channel 23.

[0044] Specifically, the air inlet hole 22 is provided with an air inlet limiting ring 21 on both sides;

[0045] The air inlet assembly 40 comprises an air inlet sleeve 43 which is rotationally sealed between two sets of air inlet limiting rings 21, and the air inlet sleeve 43 is provided with an air inlet pipe 42.

[0046] In this embodiment, when the high-pressure gas is introduced into the crystallization reaction tank 10, the air inlet pipe 42 is connected to an external gas supply device (such as an air compressor), the high-pressure gas is introduced into the air inlet pipe 42 through the gas supply device, and is introduced into the conveying channel 23 through the multiple sets of air inlet holes 22, and is introduced into the crystallization reaction tank 10 through the conveying holes 26.

[0047] Of course, since the air inlet sleeve 43 is rotationally sealed between the two sets of air inlet limiting rings 21, the high-pressure gas can be introduced into the crystallization reaction tank 10 through the multiple sets of air inlet holes 22.

[0048] Specifically, a plurality of air release channels 25 are formed in the stirring shaft 20, and the plurality of air release channels 25 are arranged in a ring array around the conveying channel 23.

[0049] The air release channel 25 is provided with a first air release hole 251 and a second air release hole 252, the first air release hole 251 is arranged outside the crystallization reaction tank 10, and the second air release hole 252 is arranged inside the crystallization reaction tank 10.

[0050] Specifically, the first air release hole 251 is provided with air release limiting rings 24 on both sides, and a rotationally sealed air release sleeve 62 is arranged between the two sets of air release limiting rings 24.

[0051] The air release sleeve 62 is provided with an air release pipe 60.

[0052] In this embodiment, through the cooperation between the first air release hole 251, the air release channel 25, and the second air release hole 252, the high-pressure gas in the crystallization reaction tank 10 can be discharged from the crystallization reaction tank 10, avoiding the influence of the high pressure inside the crystallization reaction tank 10 on the normal crystallization reaction efficiency.

[0053] Of course, by rotationally sealing the air release sleeve 62 between the two sets of air release limiting rings 24, the high-pressure gas in the crystallization reaction tank 10 can be conveniently introduced into the air release pipe 60 through different air release channels 25.

[0054] Specifically, the air inlet pipe 42 is provided with an air inlet valve 41, and the air release pipe 60 is provided with an air release valve 61.

[0055] Specifically, a connecting pipe 50 is arranged between the air inlet pipe 42 and the air release pipe 60, and the connecting pipe 50 is provided with a connecting valve 51.

[0056] In this embodiment, when the high-pressure gas is introduced into the crystallization reaction tank 10, the gas inlet valve 41 is opened, the connecting valve 51 is opened and the gas discharge valve 61 is closed, and the high-pressure gas is introduced into the crystallization reaction tank 10 through the conveying channel 23 and the gas discharge channel 25. During stirring, the gas inlet valve 41 is opened, the connecting valve 51 is closed and the gas discharge valve 61 is opened, so that the pressure relief treatment can be performed in time during the disturbance of the materials in the crystallization reaction tank 10.

[0057] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency integrated device for crystallizing and separating nitrate in a salt and nitrate plant, characterized in that: Including crystallization reaction tank (10), the stirring shaft (20) is provided with in the crystallization reaction tank (10), the outer wall of the stirring shaft (20) is provided with multiple groups of stirring blade (30); ​ The conveying channel (23) is coaxially arranged with the stirring shaft (20), and a plurality of conveying holes (26) are formed in the outer wall of the stirring shaft (20) and are in communication with the conveying channel (23), the conveying holes (26) are arranged in the inner cavity of the crystallization reaction tank (10), and the stirring shaft (20) is further provided with an air inlet assembly (40) in communication with the conveying channel (23), so that high-pressure gas enters the crystallization reaction tank (10) to disturb.

2. The integrated device for efficient crystallization and nitration of a salt-nitrate plant according to claim 1, characterized in that: The outer wall of the stirring shaft (20) is provided with a plurality of air inlet holes (22), and the plurality of air inlet holes (22) are arranged in an annular array, and the air inlet holes (22) are arranged outside the crystallization reaction tank (10); The air inlet assembly (40) is arranged at the air inlet hole (22) and enters the high-pressure gas into the conveying channel (23).

3. The integrated device for efficient crystallization and nitration of a salt-nitrate plant according to claim 2, characterized in that: The air inlet holes (22) are provided with air inlet limiting rings (21) on both sides; The air inlet assembly (40) includes an air inlet sleeve (43), the air inlet sleeve (43) is rotationally sealed between the two air inlet limiting rings (21), and the air inlet sleeve (43) is provided with an air inlet pipeline (42).

4. The integrated device for efficient crystallization and nitration of salt-nitrate plant according to claim 3, characterized in that: A plurality of air release channels (25) are formed in the stirring shaft (20) and arranged in an annular array around the conveying channel (23); The air release channel (25) is provided with a first air release hole (251) and a second air release hole (252), the first air release hole (251) is arranged outside the crystallization reaction tank (10), and the second air release hole (252) is arranged inside the crystallization reaction tank (10).

5. The integrated device for efficient crystallization and nitration of salt-nitrate plant according to claim 4, characterized in that: The first air release hole (251) is provided with air release limiting rings (24) on both sides, and a rotationally sealed air release sleeve (62) is arranged between the two air release limiting rings (24); The air release sleeve (62) is provided with an air release pipeline (60).

6. The integrated device for efficient crystallization and nitration of salt-nitrate plant according to claim 5, characterized in that: The air inlet pipeline (42) is provided with an air inlet valve (41), and the air release pipeline (60) is provided with an air release valve (61).

7. The integrated device for efficient crystallization and nitration of a salt-nitrate plant according to claim 6, characterized in that: The air inlet pipeline (42) and the air release pipeline (60) are provided with a connecting pipeline (50), and the connecting pipeline (50) is provided with a connecting valve (51).

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