Sodium hydrosulfide concentration and purification device

Abstract

The utility model provides a sodium hydrosulfide concentration and purification device, and belongs to the technical field of sodium hydrosulfide processing. Comprising an evaporation tank and a separator, a heating chamber is fixed on the inner wall of the evaporation tank, a large flow channel is arranged close to the center of the heating chamber, a small flow channel is arranged on one side of the heating chamber close to the inner wall of the evaporation tank, a central circulating pipe is fixed on the inner wall of the large flow channel, and the evaporation tank is connected with the separator through a pipeline. Through the arrangement of the waterproof motor, the driving fan blade, the driven fan blade and the scraping plate, the waterproof motor drives the driving fan blade to rotate to enable sodium hydrosulfide in the central circulating pipe to forcibly flow downwards, so that the circulating efficiency of the sodium hydrosulfide in the evaporating tank is enhanced, and the evaporating efficiency of the sodium hydrosulfide is improved; sodium hydrosulfide drives the driven fan blades to rotate, the driven fan blades drive the scraping plates to rotate on the inner walls of the small flow channels, the scraping plates scrape off sodium hydrosulfide crystals in the small flow channels, the crystals are prevented from affecting heat transfer, and the evaporation efficiency is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium hydrosulfide processing, in particular to a sodium hydrosulfide concentration and purification device. Background Art

[0002] Sodium hydrosulfide needs to be concentrated and purified during production. Concentration is carried out by an evaporator, and purification is achieved by a separator. During concentration, sodium hydrosulfide is added to an evaporator and heated by a heating chamber. In the small flow channel of the heating chamber, the sodium hydrosulfide boils and rises. In the central circulation pipe, due to the large cross-sectional area, the sodium hydrosulfide cannot reach the temperature in the small flow channel, so the sodium hydrosulfide falls, which constitutes an internal circulation of sodium hydrosulfide, evaporating the water inside the sodium hydrosulfide, which plays a role of concentration. Then the concentrated solution is passed into the separator for purification.

[0003] When sodium hydrosulfide circulates in the heating chamber, when sodium hydrosulfide contacts the heating chamber, the water in the sodium hydrosulfide evaporates, and part of the sodium hydrosulfide crystallizes on the inner wall of the heating chamber. After long-term use, the sodium hydrosulfide crystals block heat transfer and reduce the evaporation efficiency of the sodium hydrosulfide. Therefore, the present application provides a sodium hydrosulfide concentration and purification device to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sodium hydrosulfide concentration and purification device to solve the problem of affecting the evaporation efficiency of sodium hydrosulfide after the sodium hydrosulfide is crystallized in a heating chamber.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A sodium hydrosulfide concentration and purification device comprises an evaporator and a separator, wherein a heating chamber is fixed on the inner wall of the evaporator, a large flow channel is opened near the center of the heating chamber, a small flow channel is opened on the side of the heating chamber close to the inner wall of the evaporator, a central circulation pipe is fixed on the inner wall of the large flow channel, the evaporator is connected to the separator through a pipeline, a waterproof motor is fixed on the inner wall of the evaporator, a round shaft is fixed on the output end of the waterproof motor, a driving fan blade is fixed on the outer circumference of the round shaft, the driving fan blade is located in the central circulation pipe, a round rod is rotatably connected in the small flow channel, a driven fan blade is fixed on the circumference of the round rod near the bottom, a connecting piece is fixed on the circumference of the round rod, a scraper is fixed on the side of the connecting piece away from the round rod, and the scraper is attached to the inner wall of the small flow channel on the side away from the round rod.

[0007] Preferably, there are two driving blades in total, and the two driving blades are arranged in parallel up and down.

[0008] Preferably, the bottom of the round rod is hemispherical.

[0009] Preferably, the connecting piece is hollowed out.

[0010] Preferably, the scraper is provided with a curved surface on a side away from the round rod.

[0011] Preferably, a through hole is provided on the side surface of the scraper.

[0012] Preferably, a scraping angle is fixed on the side of the scraper, and the scraping angle fits in the small flow channel.

[0013] Preferably, the circular shaft is coaxially arranged with the output end of the waterproof motor.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] In the above scheme, by arranging a waterproof motor, a driving blade, a driven blade and a scraper, the waterproof motor drives the driving blade to rotate so that the sodium hydrosulfide in the central circulation pipe flows downward by force, thereby enhancing the circulation efficiency of the sodium hydrosulfide in the evaporation tank and improving the evaporation efficiency of the sodium hydrosulfide. Secondly, during the forced flow of sodium hydrosulfide, the sodium hydrosulfide drives the driven blade to rotate, and the driven blade drives the scraper to rotate on the inner wall of the small flow channel. The scraper scrapes off the sodium hydrosulfide crystals in the small flow channel to prevent the crystals from affecting the heat transfer, thereby further ensuring the evaporation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0017] Figure 1 This is a schematic diagram of the connection state between the evaporator and the separator of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the evaporation tank of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the evaporation tank of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a top view of the scraper of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the heating chamber of the utility model.

[0023] Figure numerals: 1, evaporation tank; 2, heating chamber; 3, central circulation pipe; 4, large flow channel; 5, small flow channel; 6, separator; 7, waterproof motor; 8, round shaft; 9, driving blade; 10, round rod; 11, driven blade; 12, connecting part; 13, scraper; 14, through hole; 15, scraping angle.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0025] The following is a detailed description of a sodium hydrosulfide concentration and purification device provided by the utility model in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0026] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0027] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0028] like Figure 1-Figure 6As shown, an embodiment of the utility model provides a sodium hydrosulfide concentration and purification device, including an evaporation tank 1 and a separator 6, a heating chamber 2 is fixed to the inner wall of the evaporation tank 1, a large flow channel 4 is opened near the center of the heating chamber 2, a small flow channel 5 is opened on the side of the inner wall of the heating chamber 2 close to the evaporation tank 1, a central circulation pipe 3 is fixed to the inner wall of the large flow channel 4, the evaporation tank 1 is connected to the separator 6 through a pipeline, a waterproof motor 7 is fixed to the inner wall of the evaporation tank 1, a circular shaft 8 is fixed to the output end of the waterproof motor 7, a driving fan blade 9 is fixed to the outer circumference of the circular shaft 8, and the driving fan blade 9 is located in the central circulation pipe 3, a round rod 10 is rotatably connected in the small flow channel 5, a driven fan blade 11 is fixed to the circumference of the circular rod 10 near the bottom, and a connecting Part 12, a scraper 13 is fixed on the side of the connecting part 12 away from the round rod 10, and the side of the scraper 13 away from the round rod 10 is attached to the inner wall of the small flow channel 5. A water inlet pipe and a water outlet pipe are provided on the heating chamber 2 for introducing hot steam into the heating chamber 2. The evaporator composed of the evaporation tank 1 and the heating chamber 2 is used for concentrating the sodium hydrosulfide solution, and the separator 6 is used for purifying the sodium hydrosulfide solution. The evaporator and the separator 6 are connected through a pipeline, and the waterproof motor 7 is connected to the controller through an electric wire, and the start and stop of the waterproof motor 7 is controlled by the controller. The waterproof motor 7 is fixed in the evaporation tank 1 through a bracket, and the round rod 10 is supported in the small flow channel 5 through a fixing frame. The round rod 10 can rotate on the fixing frame, and the round rod 10 will not have axial displacement.

[0029] like Figure 3 As shown, in this embodiment, there are two driving blades 9, which are arranged in parallel up and down, and the two driving blades 9 provide sufficient power for sodium hydrosulfide in circulation.

[0030] like Figure 4 As shown, in this embodiment, the bottom of the round rod 10 is set as a hemispherical surface, and the hemispherical setting reduces the resistance between the round rod 10 and the sodium hydrosulfide, thereby reducing the consumption of the kinetic energy of the sodium hydrosulfide.

[0031] like Figure 4 and Figure 5 As shown, in this embodiment, the connecting member 12 is hollowed out to reduce the resistance between the connecting member 12 and the sodium hydrosulfide during rotation.

[0032] like Figure 5 As shown, in this embodiment, the side of the scraper 13 away from the round rod 10 is arranged as a curved surface, so that the end of the scraper 13 is more closely attached to the inner wall of the small flow channel 5.

[0033] like Figure 4 As shown, in this embodiment, a through hole 14 is opened on the side of the scraper 13, and the sodium hydrosulfide can pass through the through hole 14, thereby reducing the resistance between the scraper 13 and the sodium hydrosulfide during rotation.

[0034] like Figure 4As shown, in this embodiment, a scraping angle 15 is fixed on the side of the scraper 13, and the scraping angle 15 fits in the small flow channel 5. The scraping angle 15 is set as a pointed end away from the scraper 13, so that the scraping angle 15 can scrape off the crystals more easily.

[0035] like Figure 3 As shown, in this embodiment, the circular shaft 8 is coaxially arranged with the output end of the waterproof motor 7, so that the waterproof motor 7 drives the circular shaft 8 to rotate more stably and reduces the possibility of shaking.

[0036] Working principle: sodium hydrosulfide is introduced into the evaporation tank 1, and hot steam is introduced into the heating chamber 2. At this time, the temperature of the sodium hydrosulfide in the small flow channel 5 is higher than the temperature of the sodium hydrosulfide in the central circulation pipe 3. Therefore, the sodium hydrosulfide in the small flow channel 5 moves upward due to heating, and the sodium hydrosulfide in the large flow channel 4 moves downward, forming a state of cyclic heating and evaporation;

[0037] While sodium hydrosulfide is cyclically evaporated, the waterproof motor 7 is started, the waterproof motor 7 drives the circular shaft 8 to rotate, the circular shaft 8 drives the driving blades 9 to rotate, the driving blades 9 provide a thrust for the sodium hydrosulfide in the large flow channel 4, so that the sodium hydrosulfide in the large flow channel 4 moves downward quickly, and provides sufficient power for the circulation of sodium hydrosulfide. At this time, the sodium hydrosulfide recycling with sufficient power can also drive the driven blades 11 to rotate, the driven blades 11 can drive the round rod 10 to rotate, the round rod 10 can drive the connecting piece 12 to rotate, the connecting piece 12 drives the scraper 13 to rotate, the scraper 13 drives the scraping angle 15 to rotate on the inner wall of the small flow channel 5, and the crystals of sodium hydrosulfide on the inner wall of the small flow channel 5 are scraped off by the scraping angle 15 and the scraper 13 to prevent the crystals from affecting the heat transfer, and then the sodium hydrosulfide that has been evaporated and concentrated is passed into the separator 6 through a pipeline, and is purified by the separator 6.

[0038] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, the specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0039] 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 principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sodium hydrosulfide concentration and purification device, comprising an evaporation tank (1) and a separator (6), wherein a heating chamber (2) is fixed on the inner wall of the evaporation tank (1), a large flow channel (4) is provided near the center of the heating chamber (2), a small flow channel (5) is provided on one side of the heating chamber (2) near the inner wall of the evaporation tank (1), a central circulation pipe (3) is fixed on the inner wall of the large flow channel (4), the evaporation tank (1) is connected to the separator (6) through a pipeline, and the device is characterized in that: A waterproof motor (7) is fixed to the inner wall of the evaporator (1), a circular shaft (8) is fixed to the output end of the waterproof motor (7), a driving blade (9) is fixed to the outer circumferential surface of the circular shaft (8), the driving blade (9) is located in the central circulation pipe (3), a circular rod (10) is rotatably connected in the small flow channel (5), a driven blade (11) is fixed to the circumferential surface of the circular rod (10) near the bottom, a connecting piece (12) is fixed to the circumferential surface of the circular rod (10), a scraper (13) is fixed to the side of the connecting piece (12) away from the circular rod (10), and the side of the scraper (13) away from the circular rod (10) is attached to the inner wall of the small flow channel (5).

2. A sodium hydrosulfide concentration and purification device according to claim 1, characterized in that, There are two driving blades (9) in total, and the two driving blades (9) are arranged in parallel up and down.

3. A sodium hydrosulfide concentration and purification device according to claim 1, characterized in that, The bottom of the round rod (10) is arranged in a hemispherical surface.

4. A sodium hydrosulfide concentration and purification device according to claim 1, characterized in that, The connecting piece (12) is hollowed out.

5. A sodium hydrosulfide concentration and purification device according to claim 1, characterized in that, The scraper (13) is provided with a curved surface on a side away from the round rod (10).

6. A sodium hydrosulfide concentration and purification device according to claim 1, characterized in that, A through hole (14) is provided on the side of the scraper (13).

7. A sodium hydrosulfide concentration and purification device according to claim 1, characterized in that, A scraping angle (15) is fixed to the side of the scraper (13), and the scraping angle (15) fits in the small flow channel (5).

8. A sodium hydrosulfide concentration and purification device according to claim 1, characterized in that, The circular shaft (8) is coaxially arranged with the output end of the waterproof motor (7).

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