Waste hydrochloric acid treatment equipment

Abstract

The utility model discloses waste hydrochloric acid treatment equipment. The waste hydrochloric acid treatment equipment comprises a heat source transfer structure arranged in a shell, the heat source transfer structure is arranged in the drying chamber in the shell and comprises a first heat source transfer structure and a second heat source transfer structure; the first heat source transfer structure comprises a plurality of first connecting pipes and a plurality of first guide pipes; the first connecting pipe is arranged in the drying chamber of the shell and is communicated with the heating space; the first guide pipe is arranged in the axis direction of the shaft sleeve and connected into the shell through the first connecting pipe. According to the waste hydrochloric acid treatment equipment disclosed by the utility model, the two heat source transfer structures are arranged in the shell, and the shapes and the positions of the two heat source transfer structures are changed, so that a wavy salt crystal thin layer can be formed, the heating area of the waste hydrochloric acid treatment equipment is wider, and the waste hydrochloric acid treatment equipment has good use value and application prospect.

Description

Technical Field

[0001] The utility model belongs to the field of brine treatment, and in particular relates to waste hydrochloric acid treatment equipment. Background Art

[0002] With the rapid development of the new energy industry, as one of the carriers of new energy, the post-use treatment of batteries has become one of the urgent problems to be solved. After a series of processing and decomposition of the battery, especially after treatment in the electrolyte, a lot of used hydrochloric acid solutions will be produced. Now, for this kind of hydrochloric acid solution, it is necessary to recycle and condense it, re-extract the high-concentration hydrochloric acid inside it, and at the same time, perform salt extraction on the solution inside the waste hydrochloric acid to achieve the effect of utilization here.

[0003] As one of the salt extraction equipment for high-salt waste hydrochloric acid treatment, the cyclone thermal vibration crystallizer uses saturated steam and preheated process gas as heat sources to conduct heat conduction and heat convection with the crystallized salt respectively, to achieve a coupled crystallization effect. The crystallization equipment is simple to operate and easy to adjust and control. However, during use, we found that although it can effectively improve the drying rate compared to the traditional thin film crystallization method, due to the thin layer it forms, the thin layer is always a uniform arc structure. Even with the presence of paddles, the drying effect brought by its stirring effect is very limited, which greatly affects the drying efficiency. Utility Model Content

[0004] In response to one or more of the above defects or improvement needs of the prior art, the utility model provides a waste hydrochloric acid treatment equipment, which forms a special irregular heating channel by improving the structure formed inside the shell to increase the heating area of ​​the salt crystal layer, thereby improving the drying efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides a waste hydrochloric acid treatment device, which includes a shell and a sleeve sleeved on the outer periphery of the shell, a heating space for gas to enter is reserved between the sleeve and the shell; a drying chamber is formed inside the shell; a feed inlet and a discharge inlet, as well as an air inlet and an air outlet are formed on the shell along its axial direction; a heat source inlet and a heat source outlet are also formed on the sleeve, a stirring structure is also arranged in the shell, and a heat source transfer structure is also arranged in the shell;

[0006] The heat source transfer structure is arranged in the drying chamber inside the shell, and includes a first heat source transfer structure and a second heat source transfer structure; the first heat source transfer structure includes a plurality of first connecting pipes and a plurality of first guiding pipes; the first connecting pipe is arranged in the drying chamber of the shell and communicates with the heating space; and the first guiding pipe is arranged along the axial direction of the sleeve and connected to the shell through the first connecting pipe;

[0007] The second heat source transfer structure includes a plurality of second connecting tubes and a plurality of second guide tubes; the first connecting tube is arranged in the drying chamber of the shell and is connected to the heating space; the second guide tube is arranged along the axial direction of the sleeve and is connected to the shell through the first connecting tube; and the second guide tube is staggered with the first guide tube.

[0008] As a further improvement of the present invention, the distance between the first guide tube and the center of the shell is different from the distance between the second guide tube and the center of the shell, so as to form a wavy heating channel for heating salt crystals.

[0009] As a further improvement of the present invention, the first connecting pipe and / or the second connecting pipe is connected to the inner wall of the shell through a bellows.

[0010] As a further improvement of the utility model, an elastic reset structure is arranged between the connecting tube and the inner wall of the shell; the elastic reset structure includes at least one pair of connecting plates and a spring; the connecting plate is assembled on the first connecting tube and / or the second connecting tube; one end of the spring is connected to the first connecting tube and / or the second connecting tube, and the other end is connected to the inner wall of the shell.

[0011] As a further improvement of the present invention, there are multiple first guide tubes and multiple second guide tubes; the multiple first guide tubes and the second guide tubes are arranged in a ring-shaped pattern with the center of the shell as the center; and the second guide tube is located in the gap between two adjacent first guide tubes.

[0012] As a further improvement of the utility model, the stirring structure includes a rotating shaft, stirring blades and a motor;

[0013] The output end of the motor is connected to the rotating shaft, and the rotating shaft penetrates into the shell from one side of the shell along the axial direction of the shell; there are multiple stirring blades, and the multiple stirring blades are arranged on the rotating shaft along the axial direction of the shell.

[0014] As a further improvement of the present invention, the stirring blade is assembled on the rotating shaft through the connecting seat; the connecting seat includes an outer cover and a driving member arranged in the outer cover, and the stirring blade is arranged on the rotating shaft of the driving member to adjust the angle of the stirring blade.

[0015] As a further improvement of the utility model, the rotating shaft and the stirring blade both adopt a hollow structure; and an opening is formed on the rotating shaft for introducing gas;

[0016] A plurality of air holes are formed on the stirring blade.

[0017] As a further improvement of the present invention, a salt content detection structure is provided corresponding to the feed inlet, which is used to detect the density of the salt water entering the shell from the feed inlet.

[0018] The utility model provides a waste hydrochloric acid treatment device, which comprises a shell and a sleeve sleeved on the outer periphery of the shell, a heating space for gas to enter is reserved between the sleeve and the shell; a drying chamber is formed inside the shell; a feed inlet and a discharge inlet, as well as an air inlet and an air outlet are formed on the shell along its axial direction; a heat source inlet and a heat source outlet are also formed on the sleeve, a stirring structure is also arranged in the shell, and a heat source transfer structure is also arranged in the shell;

[0019] The heat source transfer structure is arranged in the drying chamber inside the shell, and includes a first heat source transfer structure and a second heat source transfer structure; the first heat source transfer structure includes a plurality of first connecting pipes and a plurality of first guiding pipes; the first connecting pipe is arranged in the drying chamber of the shell and communicates with the heating space; and the first guiding pipe is arranged along the axial direction of the sleeve and connected to the shell through the first connecting pipe;

[0020] The second heat source transfer structure includes a plurality of second connecting tubes and a plurality of second guide tubes; the second guide tubes are arranged along the axial direction of the sleeve and connected to the shell through the first connecting tubes; and the second guide tubes are staggered with the first guide tubes.

[0021] Preferably, the distance between the first guide tube and the center of the shell is different from the distance between the second guide tube and the center of the shell, so as to form a wavy heating channel for heating salt crystals.

[0022] Preferably, the first connecting pipe and / or the second connecting pipe is connected to the inner wall of the shell through a bellows.

[0023] Preferably, an elastic reset structure is provided between the connecting tube and the inner wall of the shell; the elastic reset structure comprises at least one pair of connecting plates and a spring; the connecting plate is assembled on the first connecting tube and / or the second connecting tube; one end of the spring is connected to the first connecting tube and / or the second connecting tube, and the other end is connected to the inner wall of the shell.

[0024] Preferably, there are a plurality of the first guide tubes and the second guide tubes; the plurality of the first guide tubes and the second guide tubes are arranged in a circular pattern with the center of the shell as the center; and the second guide tube is located in the gap between two adjacent first guide tubes.

[0025] Preferably, the stirring structure comprises a rotating shaft, stirring blades and a motor;

[0026] The output end of the motor is connected to the rotating shaft, and the rotating shaft penetrates into the shell from one side of the shell along the axial direction of the shell; there are multiple stirring blades, and the multiple stirring blades are arranged on the rotating shaft along the axial direction of the shell.

[0027] Preferably, the stirring blade is assembled on the rotating shaft through the connecting seat; the connecting seat includes an outer cover and a driving member arranged in the outer cover, and the stirring blade is arranged on the rotating shaft of the driving member to adjust the angle of the stirring blade.

[0028] Preferably, the rotating shaft and the stirring blade are both hollow structures; and an opening is formed on the rotating shaft for introducing gas;

[0029] A plurality of air holes are formed on the stirring blade.

[0030] Preferably, a salt content detection structure is provided corresponding to the feed inlet, which is used to detect the density of the salt water entering the shell from the feed inlet.

[0031] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0032] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0033] The waste hydrochloric acid treatment equipment of the utility model has two heat source transfer structures arranged in a shell, and by changing the shapes and positions of the two heat source transfer structures, a wavy salt crystal layer can be formed, thereby making its heating area wider. At the same time, due to the staggered arrangement of the first connecting pipe and the second connecting pipe, the salt crystals between the two connecting pipes are fully heated in a state where the heat source can be transferred, thereby improving the drying efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic cross-sectional structure diagram of the waste hydrochloric acid treatment equipment in the embodiment of the utility model after being rotated 90° as a whole;

[0035] Figure 2 It is a cross-sectional structural diagram of a stirring structure in a waste hydrochloric acid treatment device in an embodiment of the utility model;

[0036] Figure 3 It is a cross-sectional view after a wavy thin layer is formed inside the waste hydrochloric acid treatment equipment in the embodiment of the utility model;

[0037] Figure 4 It is an axonometric diagram of the waste hydrochloric acid treatment equipment in the embodiment of the utility model.

[0038] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0039] 1. Shell; 101. Drying space; 102. Feed inlet; 103. Discharge outlet;

[0040] 2. Shaft sleeve; 201. Heating space; 202. Heat source inlet; 203. Heat source outlet;

[0041] 3. Heat source transfer structure; 301. First connecting pipe; 302. First guide pipe; 303. Second connecting pipe; 304. Second guide pipe;

[0042] 4. stirring structure; 401. rotating shaft; 402. stirring blade. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0044] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as there is no conflict between them.

[0045] See also Figures 1 to 4 The waste hydrochloric acid treatment equipment in the preferred embodiment of the utility model has two heat source transfer structures arranged in the shell, and by changing the shapes and positions of the two heat source transfer structures, it can form a wavy salt crystal layer, thereby making its heating area wider. At the same time, due to the staggered arrangement of the first connecting pipe and the second connecting pipe, the salt crystals between the two connecting pipes are fully heated while being able to transfer the heat source, thereby improving the drying efficiency of the device.

[0046] Specifically, the waste hydrochloric acid treatment equipment in the preferred embodiment of the utility model includes a shell 1 and a sleeve 2 sleeved on the outer periphery of the shell 1, and a heating space 201 for gas to enter is reserved between the sleeve 2 and the shell 1; a drying chamber 101 is formed inside the shell 1; a feed port 102 and a discharge port 103, as well as an air inlet and an air outlet are formed on the shell 1 along its axial direction; a heat source inlet 202 and a heat source outlet 203 are also formed on the sleeve 2, a stirring structure 4 is also arranged in the shell 1, and also includes a heat source transfer structure 3 arranged in the shell 1; the heat source transfer structure 3 is arranged in the drying chamber 101 inside the shell 1, and includes a first heat source transfer structure 3 and a second heat source transfer structure 3; the first heat source transfer structure 3 includes a plurality of first connecting tubes 301 and a plurality of first guide tubes 302; the first connecting tube 301 is arranged in the drying chamber 101 of the shell 1, and is connected to the heating space 201; and the first guide tube 302 is arranged along the axial direction of the sleeve 2, and is connected to the shell 1 through the first connecting tube 301; the second heat source transfer structure 3 includes a plurality of second connecting tubes 303 and a plurality of second guide tubes 304; the second guide tube 304 is arranged along the axial direction of the sleeve 2, and is connected to the shell 1 through the first connecting tube 301; and the second guide tube 304 is staggered with the first guide tube 302.

[0047] It is worth noting that in actual use, since the first connecting tube 301 and the first guide tube 302 are connected to the second connecting tube 303 and the second connecting tube 304 respectively with the heating space 201, the heat source can enter the first guide tube 302 and the second guide tube 304 in turn after entering the heating space 201, thereby increasing the contact area between the subsequent salt crystal layer and the shell 1 after formation without affecting its gas flow direction, so that it can be formed between the first guide tube 302 and the second guide tube 304; or the first guide tube 302 and the second guide tube 304 are buried, thereby realizing the heating of the wet salt crystals in the thin layer.

[0048] Further preferably, the distance between the first guide tube 302 and the center of the shell 1 is different from the distance between the second guide tube 304 and the center of the shell 1, so as to form a wavy heating channel for heating the salt crystals. The wavy channel is designed by fully combining the centrifugal force generated by the stirring structure 4, which can ensure that when a thin layer of salt crystals is formed, a wavy thin layer structure is formed, so that it can be better transported. At the same time, the staggered design can further increase the contact area between the first guide tube 302 and the second guide tube 304 and the thin layer of salt crystals, thereby improving the heating efficiency.

[0049] Furthermore, the first connecting tube 301 and / or the second connecting tube 303 are connected to the inner wall of the housing 1 through a bellows. With this design, the distance between the first connecting tube 301 and / or the second connecting tube 303 and the inside of the housing 1 can be slightly adjusted without affecting the formation of the thin layer. The distance of the fine adjustment depends on the influence of the centrifugal force generated by the stirring structure 4 on the first guide tube 302 and the second guide tube 304.

[0050] Of course, in the actual setting process, an elastic reset structure can also be arranged between the connecting tube and the inner wall of the shell 1; the elastic reset structure includes at least one pair of connecting plates and a spring; the connecting plate is assembled on the first connecting tube 301 and / or the second connecting tube 303; one end of the spring is connected to the first connecting tube 301 and / or the second connecting tube 303, and the other end is connected to the inner wall of the shell 1.

[0051] Furthermore, in Figure 1 and Figure 3 In the preferred embodiment shown, there are multiple first guide tubes 302 and multiple second guide tubes 304; the multiple first guide tubes 302 and multiple second guide tubes 304 are arranged in a ring-shaped manner with the center of the housing 1 as the center; and the second guide tube 304 is located in the gap between two adjacent first guide tubes 302. In the actual setting process, the design form of the multiple first guide tubes 302 and the second guide tubes 304 can form multiple concave and convex wave-shaped structures to form a wave-shaped heating channel.

[0052] More specifically, the stirring structure 4 includes a rotating shaft 401, a stirring blade 402 and a motor; the output end of the motor is connected to the rotating shaft 401, and the rotating shaft 401 penetrates into the shell 1 from one side of the shell 1 along the axial direction of the shell 1; there are multiple stirring blades 402, and the multiple stirring blades 402 are arranged on the rotating shaft 401 along the axial direction of the shell 1.

[0053] Preferably, if Figure 2 As shown in , the stirring blade 402 is assembled on the rotating shaft 401 through a connecting seat; the connecting seat includes an outer cover and a driving member arranged in the outer cover, and the stirring blade 402 is arranged on the rotating shaft 401 of the driving member to adjust the angle of the stirring blade 402.

[0054] In actual use, it is preferred that both the rotating shaft 401 and the stirring blade 402 adopt a hollow structure; and an opening is formed on the rotating shaft 401 for passing gas; a plurality of air holes are formed on the stirring blade 402, so that the heating gas passed into the shell 1 can be output from the stirring blade 402, thereby further improving the heating effect of the stirring blade 402 during stirring.

[0055] In addition, a salt content detection structure is provided corresponding to the feed inlet 102 , for detecting the density of the salt water entering the housing 1 from the feed inlet 102 .

[0056] It should be pointed out that the air inlet and the air outlet are not shown in the illustrations of the present invention, and their arrangement is the conventional setting position of those skilled in the art, such as the air inlet and the air outlet respectively corresponding to the setting positions of the feed port 102 and the outlet 103, so that the loading and unloading directions of the gas and the material are consistent, and therefore are not shown in this article.

[0057] The waste hydrochloric acid treatment equipment of the utility model has two heat source transfer structures arranged in a shell, and by changing the shapes and positions of the two heat source transfer structures, a wavy salt crystal layer can be formed, thereby making its heating area wider. At the same time, due to the staggered arrangement of the first connecting pipe and the second connecting pipe, the salt crystals between the two connecting pipes are fully heated in a state where the heat source can be transferred, thereby improving the drying efficiency of the device.

[0058] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste hydrochloric acid treatment device, comprising a shell (1) and a sleeve (2) sleeved on the outer periphery of the shell (1), a heating space (201) for gas to enter is reserved between the sleeve (2) and the shell (1); a drying chamber (101) is formed inside the shell (1); a feed inlet (102) and a discharge port (103), as well as an air inlet and an air outlet are formed on the shell (1) along its axial direction; a heat source inlet (202) and a heat source outlet (203) are also formed on the sleeve (2), and a stirring structure (4) is also arranged in the shell (1), characterized in that: It also includes a heat source transfer structure (3) arranged in the housing (1); The heat source transfer structure (3) is arranged in the drying chamber (101) inside the shell (1), and comprises a first heat source transfer structure (3) and a second heat source transfer structure (3); the first heat source transfer structure (3) comprises a plurality of first connecting tubes (301) and a plurality of first guiding tubes (302); the first connecting tube (301) is arranged in the drying chamber (101) of the shell (1) and is connected to the heating space (201); and the first guiding tube (302) is arranged along the axial direction of the shaft sleeve (2) and is connected to the shell (1) through the first connecting tube (301); The second heat source transfer structure (3) comprises a plurality of second connecting tubes (303) and a plurality of second guide tubes (304); the second guide tubes (304) are arranged along the axial direction of the shaft sleeve (2) and are connected to the shell (1) through the first connecting tubes (301); and the second guide tubes (304) and the first guide tubes (302) are arranged in a staggered manner.

2. The waste hydrochloric acid treatment equipment according to claim 1, characterized in that: The distance between the first guide tube (302) and the center of the shell (1) is different from the distance between the second guide tube (304) and the center of the shell (1), so as to form a wavy heating channel for heating salt crystals.

3. The waste hydrochloric acid treatment equipment according to claim 2, characterized in that: The first connecting pipe (301) and / or the second connecting pipe (303) are connected to the inner wall of the housing (1) via a bellows.

4. The waste hydrochloric acid treatment equipment according to claim 3, characterized in that: An elastic reset structure is provided between the connecting tube and the inner wall of the shell (1); the elastic reset structure comprises at least one pair of connecting plates and a spring; the connecting plate is mounted on the first connecting tube (301) and / or the second connecting tube (303); one end of the spring is connected to the first connecting tube (301) and / or the second connecting tube (303), and the other end is connected to the inner wall of the shell (1).

5. The waste hydrochloric acid treatment equipment according to any one of claims 1 to 4, characterized in that: There are a plurality of the first guide tubes (302) and the second guide tubes (304); the plurality of the first guide tubes (302) and the second guide tubes (304) are arranged in a circular pattern with the center of the shell (1) as the center; and the second guide tube (304) is located in the gap between two adjacent first guide tubes (302).

6. The waste hydrochloric acid treatment equipment according to claim 1, characterized in that: The stirring structure (4) comprises a rotating shaft (401), a stirring blade (402) and a motor; The output end of the motor is connected to the rotating shaft (401), and the rotating shaft (401) penetrates into the shell (1) from one side of the shell (1) along the axial direction of the shell (1); there are a plurality of stirring blades (402), and the plurality of stirring blades (402) are arranged on the rotating shaft (401) along the axial direction of the shell (1).

7. The waste hydrochloric acid treatment equipment according to claim 6, characterized in that: The stirring blade (402) is assembled on the rotating shaft (401) through a connecting seat; the connecting seat comprises an outer cover and a driving member arranged in the outer cover, and the stirring blade (402) is arranged on the rotating shaft (401) of the driving member to adjust the angle of the stirring blade (402).

8. The waste hydrochloric acid treatment equipment according to claim 6 or 7, characterized in that: The rotating shaft (401) and the stirring blade (402) both have a hollow structure; and an opening is formed on the rotating shaft (401) for introducing gas.

9. The waste hydrochloric acid treatment equipment according to claim 8, characterized in that: The stirring blade (402) is formed with a plurality of air holes.

10. The waste hydrochloric acid treatment equipment according to claim 1, characterized in that: A salt content detection structure is provided corresponding to the feed inlet (102) and is used to detect the density of the salt water entering the housing (1) from the feed inlet (102).

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