Inorganic salt recovery device

Abstract

The invention discloses an inorganic salt recovery device, which belongs to the technical field of inorganic salt recovery, and comprises a stirring mechanism and a wall scraping mechanism, the stirring mechanism comprises a recovery tank, a cover plate and a material guide cone; a stirring shaft is mounted in the recovery tank, the top end of the stirring shaft penetrates through the cover plate and is connected with a mounting plate, a driving motor is mounted on the mounting plate, and the output end of the driving motor is connected with the stirring shaft; a first steam channel is further formed in the stirring shaft, the bottom of the first steam channel is connected with a steam inlet pipeline, and the steam inlet pipeline penetrates through the material guide cone and is connected with an evaporator; a plurality of stirring rods are installed on the periphery of the stirring shaft, a second steam channel is formed in the uppermost stirring rod and communicates with the top of the first steam channel, and a plurality of steam output holes communicate with the bottom of the second steam channel; the wall scraping mechanism is connected with the stirring shaft; by means of the design, the purposes of preventing the air inlet pipe from being blocked in the evaporative crystallization process, preventing crystals from being adhered to the inner wall and drying initial crystals can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of inorganic salt recovery, and in particular relates to an inorganic salt recovery device. Background Art

[0002] With the acceleration of industrialization, the treatment and recycling of inorganic salt wastewater has become an important issue of environmental protection and resource conservation. In the chemical, pharmaceutical, food processing and other industries, the discharge of inorganic salt wastewater not only causes environmental pollution, but also wastes precious inorganic salt resources;

[0003] Traditional inorganic salt recovery technology mainly relies on the evaporation crystallization process, but this process has several technical difficulties:

[0004] 1. The problem of steam movement direction: Patent document CN219399014U records an inorganic salt recovery device, in which the steam generator is arranged on one side of the recovery tank, and the air inlet pipe is arranged on the steam generator and penetrates from the lower outlet and is arranged above the filter screen. Therefore, during the evaporation and crystallization process, the steam rises naturally, which easily causes the air inlet pipe and the filter screen to be blocked by the inorganic salt crystals produced after evaporation, affecting the continuous operation and efficiency of the device;

[0005] 2. Inorganic salt crystal adhesion problem: The inorganic salt adhesion crystals on the inner wall of the evaporator crystallizer are difficult to remove, resulting in a decrease in heat transfer efficiency, increased energy consumption and maintenance costs;

[0006] 3. Initial crystallization drying problem: The inorganic salt crystals after evaporation have high moisture content and need to be further dried to meet the needs of industrial applications, but the existing drying technology often has high energy consumption and low efficiency;

[0007] In view of the deficiencies in the prior art, the present invention provides an inorganic salt recovery device to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an inorganic salt recovery device, which can prevent the blockage of the air inlet pipe and the adhesion of crystals to the inner wall during the evaporation crystallization process and dry the initial crystals.

[0009] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0010] An inorganic salt recovery device, comprising:

[0011] A stirring mechanism, the stirring mechanism comprising a recovery tank, a cover plate arranged on the top of the recovery tank and a guide cone at the bottom; a stirring shaft is installed in the recovery tank, the top end of the stirring shaft passes through the cover plate and is connected to a mounting plate, a driving motor is installed on the mounting plate, and the output end of the driving motor is connected to the stirring shaft; a first steam channel is also opened inside the stirring shaft, the bottom of the first steam channel is connected to a steam inlet pipe, and the steam inlet pipe passes through the guide cone and is connected to an evaporator; a plurality of stirring rods are also installed on the outer periphery of the stirring shaft, a second steam channel is opened in the stirring rod located at the top, and the second steam channel is connected to the top of the first steam channel, and the bottom of the second steam channel is also connected to a plurality of steam output holes;

[0012] and a wall scraping mechanism, which is connected to the stirring shaft and is used to remove crystal residues on the inner wall of the recovery tank.

[0013] Preferably, the stirring mechanism further comprises a pair of air duct machines, wherein:

[0014] A pair of the air duct machines are arranged in the second steam channel and are symmetrically arranged on both sides of the stirring shaft. The air outlet of the air duct machine faces one end of the steam output hole and is electrically connected to the external power supply through a built-in wire.

[0015] Preferably, the wall scraping mechanism comprises a scraper and a pair of adjusting rod assemblies; one side of the scraper is in contact with the inner wall of the recovery tank; the pair of adjusting rod assemblies comprises a first connecting rod, a second connecting rod and a third connecting rod; wherein,

[0016] One end of the first connecting rod is connected to the outer side of the stirring shaft, and the other end thereof is connected to the first threaded rod; one end of the second connecting rod is provided with a first internal thread groove threadedly connected to the first threaded rod, and the other end thereof is connected to the second threaded rod; one end of the third connecting rod is provided with a second internal thread groove threadedly connected to the second threaded rod, and the other end thereof is connected to the other side of the scraper.

[0017] Preferably, it also includes a dehumidification mechanism, which includes a grinding box, a pair of grinding rollers and a pair of grinding motors; wherein,

[0018] Valves are installed on the top and bottom of the grinding box, and the top of the valve is connected to the material guide cone; a pair of grinding rollers are installed in the grinding box through rotating shafts; a pair of grinding motors are installed on the outside of the grinding box, and their output ends are connected to one end of the rotating shaft through bearings.

[0019] Preferably, the pair of grinding rollers are made of stainless steel or aluminum.

[0020] Preferably, each of the rotating shafts is further provided with a heating chamber, one end of the heating chamber is connected to a heating pipe, the heating pipe is arranged on the outside of the grinding box, and hot air is passed through the heating pipe through an external heating device to heat the grinding roller.

[0021] Preferably, it further comprises a feed pipe and a feed tank, one end of the feed pipe is connected to the recovery tank, and the feed tank is connected to the other end of the feed pipe.

[0022] Preferably, it also includes a gas collecting pipeline, which is connected to the recovery tank and is used to collect harmful gases generated after evaporation and crystallization of inorganic salts.

[0023] Preferably, it further comprises at least three supporting legs, each of which is connected to the side wall of the material guiding cone.

[0024] Preferably, it further comprises at least two handles, each of which is connected to the top of the cover plate.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention designs a stirring mechanism. Firstly, through the design of the stirring shaft and the stirring rod, the inorganic salt solution in the recovery tank can be effectively mixed, the evaporation and crystallization process can be promoted, and the recovery efficiency can be improved; secondly, through the design of the first steam channel and the second steam channel, the steam can be evenly distributed, the heat exchange efficiency can be improved, the evaporation process can be accelerated, and the adhesion of inorganic salt crystals on the tank wall can be reduced. In addition, the setting of the air duct machine helps to enhance the flow and distribution of steam, reduce the risk of crystallization blockage, and improve the continuous operation efficiency of the device.

[0027] 2. The present invention designs a scraping mechanism, which removes crystal residues on the inner wall, thereby keeping the inner wall of the tank clean, improving heat transfer efficiency, and reducing energy consumption and maintenance costs. The design of the adjusting rod assembly allows the position and pressure of the scraper to be adjusted to meet different cleaning needs.

[0028] 3. The present invention introduces a dehumidification mechanism. Firstly, the cooperation of the grinding roller and the grinding motor can realize the drying of inorganic salt crystals. Secondly, a heating chamber is provided in the rotating shaft, and the heating chamber is connected to a heating pipe. Through the design of the heating chamber and the heating pipe, the grinding roller can be heated, which further improves the drying efficiency and reduces the energy consumption. In addition, the grinding roller is made of stainless steel or aluminum with good thermal conductivity, which further improves the drying performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the stirring mechanism of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the wall scraping mechanism of the present invention.

[0032] Figure 4 It is a partial enlarged view A of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the dehumidification mechanism of the present invention.

[0034] Figure 6 It is a partial enlarged view B of the present invention.

[0035] in:

[0036] 1. Stirring mechanism; 10. Recovery tank; 11. Cover plate; 111. Mounting plate; 12. Material guide cone; 13. Stirring shaft; 131. First steam channel; 14. Stirring rod; 141. Second steam channel; 142. Steam output hole; 15. Driving motor; 16. Evaporator; 17. Steam inlet pipe; 18. Duct machine; 2. Feed pipe; 3. Feed tank; 4. Support legs;

[0037] 5. Scraping mechanism; 51. Scraper; 52. Adjusting rod assembly; 521. First connecting rod; 521a. First threaded rod; 522. Second connecting rod; 522a. First internal thread groove; 522b. Second threaded rod; 523. Third connecting rod; 523a. Second internal thread groove;

[0038] 6. Dehumidification mechanism; 61. Valve; 62. Grinding box; 63. Grinding roller; 64. Rotating shaft; 641. Heating chamber; 65. Grinding motor; 66. Heating pipe;

[0039] 7. Gas collecting pipe; 8. Handle. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0043] Embodiment 1

[0044] refer to Figure 1-Figure 6 , this embodiment provides an inorganic salt recovery device, comprising:

[0045] A stirring mechanism 1, the stirring mechanism 1 comprises a recovery tank 10, a cover plate 11 arranged on the top of the recovery tank 10 and a guide cone 12 at the bottom; a stirring shaft 13 is installed in the recovery tank 10, the top end of the stirring shaft 13 passes through the cover plate 11 and is connected to a mounting plate 111, a driving motor 15 is installed on the mounting plate 111, and the output end of the driving motor 15 is connected to the stirring shaft 13; a first steam channel 131 is also opened inside the stirring shaft 13, a steam inlet pipe 17 is connected to the bottom of the first steam channel 131, and the steam inlet pipe 17 passes through the guide cone 12 and is connected to an evaporator 16; a plurality of stirring rods 14 are also installed on the outer periphery of the stirring shaft 13, a second steam channel 141 is opened in the stirring rod 14 located at the top, and the second steam channel 141 is connected to the top of the first steam channel 131, and the bottom of the second steam channel 141 is also connected to a plurality of steam output holes 142;

[0046] and a wall scraping mechanism 5 , which is connected to the stirring shaft 13 and is used to remove crystal residues on the inner wall of the recovery tank 10 .

[0047] Furthermore, the stirring mechanism 1 also includes a pair of air duct machines 18, wherein:

[0048] A pair of the air duct fans 18 are arranged in the second steam channel 141 and symmetrically arranged on both sides of the stirring shaft 13. The air outlet of the air duct fan 18 faces one end of the steam output hole 142 and is electrically connected to the external power supply through a built-in wire.

[0049] Working principle: When in use, the inorganic salt solution containing high-salt wastewater is introduced into the recovery tank 10, and the drive motor 15, the evaporator 16 and the duct machine 18 are started. The drive motor 15 drives the stirring shaft 13 to rotate, and the stirring shaft 13 drives the stirring rod 14 to rotate. The stirring rod 14 stirs the inorganic salt solution. The steam generated by the evaporator 16 first floats upward through the first steam channel 131 and is transported to the second steam channel 141. The steam is then blown downward through the steam output hole 142 by the duct machine 18 to achieve evaporation and crystallization of the inorganic salt solution while stirring.

[0050] In this embodiment, the stirring mechanism 1 designed by the present invention can, firstly, effectively mix the inorganic salt solution in the recovery tank 10 through the design of the stirring shaft 13 and the stirring rod 14, promote the evaporation and crystallization process, and improve the recovery efficiency; secondly, through the design of the first steam channel 131 and the second steam channel 141, the steam can be evenly distributed, the heat exchange efficiency is improved, the evaporation process is accelerated, and at the same time, the adhesion of inorganic salt crystals on the tank wall is reduced, and the setting of the air duct machine 18 helps to enhance the flow and distribution of steam, reduce the risk of crystallization blockage, and improve the continuous operation efficiency of the device.

[0051] Embodiment 2

[0052] refer to Figure 2-Figure 4 On the basis of the first embodiment, the wall scraping mechanism 5 designed by the present invention specifically includes a scraper 51 and a pair of adjusting rod assemblies 52; one side of the scraper 51 is in contact with the inner wall of the recovery tank 10; the pair of adjusting rod assemblies 52 include a first connecting rod 521, a second connecting rod 522 and a third connecting rod 523; wherein,

[0053] One end of the first connecting rod 521 is connected to the outer side of the stirring shaft 13, and the other end thereof is connected to the first threaded rod 521a; one end of the second connecting rod 522 is provided with a first internal thread groove 522a threadedly connected to the first threaded rod 521a, and the other end thereof is connected to the second threaded rod 522b; one end of the third connecting rod 523 is provided with a second internal thread groove 523a threadedly connected to the second threaded rod 522b, and the other end thereof is connected to the other side of the scraper 51.

[0054] Working principle: When in use, the driving motor 15 drives the stirring shaft 13 to rotate, and the stirring shaft 13 drives the scraper 51 to slide along the inner wall of the recovery tank 10 through the adjusting rod assembly 52. ​​At the same time, the adjusting rod assembly 52 can be replaced with a second connecting rod 522 of different lengths according to needs to adapt to recovery tanks 10 with different inner diameters.

[0055] In this embodiment, the present invention removes the crystallized residues on the inner wall through the scraping mechanism 5, which can keep the inner wall of the tank clean, improve heat transfer efficiency, and reduce energy consumption and maintenance costs. The design of the adjustment rod assembly 52 allows the position and pressure of the scraper 51 to be adjusted to meet different cleaning requirements.

[0056] Embodiment 3

[0057] refer to Figure 1 , Figure 5 and Figure 6 On the basis of the first and second embodiments, the present invention further comprises a dehumidification mechanism 6, wherein the dehumidification mechanism 6 comprises a grinding box 62, a pair of grinding rollers 63 and a pair of grinding motors 65; wherein,

[0058] Valves 61 are installed at the top and bottom of the grinding box 62, and the top of the valve 61 is connected to the material guide cone 12; a pair of grinding rollers 63 are installed in the grinding box 62 through rotating shafts 64; a pair of grinding motors 65 are installed on the outside of the grinding box 62, and their output ends are connected to one end of the rotating shaft 64 through bearings.

[0059] Specifically, the pair of grinding rollers 63 are made of stainless steel or aluminum.

[0060] Furthermore, each of the rotating shafts 64 is provided with a heating chamber 641 , one end of the heating chamber 641 is connected to a heating pipe 66 , the heating pipe 66 is provided on the outside of the grinding box 62 , and the grinding roller 63 is heated by passing hot air through an external heating device.

[0061] In order to realize a continuous feeding process and improve the automation degree and processing capacity of the device, the present embodiment also includes a feeding pipe 2 and a feeding tank 3, wherein one end of the feeding pipe 2 is connected to the recovery tank 10, and the feeding tank 3 is connected to the other end of the feeding pipe 2.

[0062] In order to effectively collect harmful gases generated after evaporation and crystallization of inorganic salts and reduce environmental pollution, the present embodiment further includes a gas collection pipeline 7, which is connected to the recovery tank 10 and is used to collect harmful gases generated after evaporation and crystallization of inorganic salts.

[0063] The stability of the entire device can be improved and problems caused by equipment vibration or uneven load can be reduced. The present embodiment further includes at least three supporting legs 4 , each of which is connected to the side wall of the guide cone 12 .

[0064] In order to allow the operator to more easily move or adjust the position of the device and improve the convenience of operation, the present embodiment further includes at least two handles 8 , each of which is connected to the top of the cover plate 11 .

[0065] In this embodiment, the present invention introduces a dehumidification mechanism 6. First, through the cooperation of the grinding roller 63 and the grinding motor 65, the drying of the inorganic salt crystals can be achieved. Secondly, a heating chamber 641 is provided in the rotating shaft 64, and the heating chamber 641 is connected to a heating pipe 66. Through the design of the heating chamber 641 and the heating pipe 66, the grinding roller 63 can be heated, thereby further improving the drying efficiency and reducing the energy consumption. In addition, the grinding roller 63 adopts stainless steel or aluminum with good thermal conductivity, thereby further improving the drying performance.

[0066] Working principle: After the evaporation crystallization is completed, the valve 61 on the top of the grinding box 62 is opened to allow the inorganic salt crystals to enter the grinding box 62 along the guide cone 12, and then a pair of grinding motors 65 are started to make the output shafts of the pair of grinding motors 65 rotate in opposite directions, so that the pair of grinding rollers 63 rotate in the opposite direction to grind the inorganic salt crystals. At the same time, hot air is introduced into the heating pipe 66 into the heating chamber 641 of the rotating shaft 64 to accelerate the drying of the inorganic salt crystals. After drying, the valve 61 at the bottom of the grinding box 62 is opened to take out the inorganic salt for recycling.

[0067] In summary, the present invention improves the efficiency of the inorganic salt recovery device, reduces energy consumption, reduces environmental pollution, and improves the stability and operational convenience of the equipment through the combination of the above structures.

[0068] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An inorganic salt recovery device, characterized in that: include: A stirring mechanism (1), the stirring mechanism (1) comprising a recovery tank (10), a cover plate (11) arranged on the top of the recovery tank (10) and a material guide cone (12) at the bottom; a stirring shaft (13) is installed in the recovery tank (10), the top end of the stirring shaft (13) passes through the cover plate (11) and is connected to a mounting plate (111), a driving motor (15) is installed on the mounting plate (111), and the output end of the driving motor (15) is connected to the stirring shaft (13); a first steam generator is provided inside the stirring shaft (13) A channel (131), the bottom of the first steam channel (131) is connected to a steam inlet pipe (17), and the steam inlet pipe (17) passes through the material guide cone (12) and is connected to an evaporator (16); a plurality of stirring rods (14) are also installed on the outer periphery of the stirring shaft (13), a second steam channel (141) is opened in the stirring rod (14) located at the top, and the second steam channel (141) is connected to the top of the first steam channel (131), and the bottom of the second steam channel (141) is also connected to a plurality of steam output holes (142); and a wall scraping mechanism (5), wherein the wall scraping mechanism (5) is connected to the stirring shaft (13) and is used to remove crystal residues on the inner wall of the recovery tank (10).

2. The inorganic salt recovery device according to claim 1, characterized in that: The stirring mechanism (1) further comprises a pair of air duct machines (18), wherein: A pair of the air duct machines (18) are arranged in the second steam channel (141) and are symmetrically arranged on both sides of the stirring shaft (13); the air outlets of the air duct machines (18) face one end of the steam output hole (142) and are electrically connected to an external power source via a built-in wire.

3. The inorganic salt recovery device according to claim 1, characterized in that: The wall scraping mechanism (5) comprises a scraper (51) and a pair of adjusting rod assemblies (52); one side of the scraper (51) is in contact with the inner wall of the recovery tank (10); the pair of adjusting rod assemblies (52) comprises a first connecting rod (521), a second connecting rod (522) and a third connecting rod (523); wherein: One end of the first connecting rod (521) is connected to the outer side of the stirring shaft (13), and the other end thereof is connected to the first threaded rod (521a); ​​one end of the second connecting rod (522) is provided with a first internal thread groove (522a) threadedly connected to the first threaded rod (521a), and the other end thereof is connected to the second threaded rod (522b); one end of the third connecting rod (523) is provided with a second internal thread groove (523a) threadedly connected to the second threaded rod (522b), and the other end thereof is connected to the other side of the scraper (51).

4. The inorganic salt recovery device according to any one of claims 1 to 3, characterized in that: It also includes a dehumidification mechanism (6), which includes a grinding box (62), a pair of grinding rollers (63) and a pair of grinding motors (65); wherein, Valves (61) are installed at the top and bottom of the grinding box (62), and the top of the valve (61) is connected to the material guide cone (12); a pair of grinding rollers (63) are installed in the grinding box (62) through rotating shafts (64); a pair of grinding motors (65) are installed on the outside of the grinding box (62), and their output ends are connected to one end of the rotating shaft (64) through bearings.

5. The inorganic salt recovery device according to claim 4, characterized in that: The pair of grinding rollers (63) are made of stainless steel or aluminum.

6. The inorganic salt recovery device according to claim 5, characterized in that: A heating chamber (641) is also provided in each rotating shaft (64), one end of the heating chamber (641) is connected to a heating pipe (66), the heating pipe (66) is provided on the outside of the grinding box (62), and hot air is passed through the heating pipe via an external heating device to heat the grinding roller (63).

7. The inorganic salt recovery device according to claim 1, characterized in that: It also includes a feed pipe (2) and a feed tank (3), one end of the feed pipe (2) is connected to the recovery tank (10), and the feed tank (3) is connected to the other end of the feed pipe (2).

8. The inorganic salt recovery device according to claim 1, characterized in that: It also includes a gas collection pipeline (7), which is connected to the recovery tank (10) and is used to collect harmful gases generated after the evaporation and crystallization of the inorganic salt.

9. The inorganic salt recovery device according to claim 1, characterized in that: It also comprises at least three supporting legs (4), each of the supporting legs (4) being connected to the side wall of the material guiding cone (12).

10. The inorganic salt recovery device according to claim 1, characterized in that: It also comprises at least two handles (8), each of the handles (8) being connected to the top of the cover plate (11).

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