Device for synthesizing hydrochloric acid by using liquid chlorine tail gas

Abstract

The utility model relates to the technical field of liquid chlorine production, in particular to a device for synthesizing hydrochloric acid by using liquid chlorine tail gas, which comprises a reaction tank, supporting legs are mounted at corners of the bottom of the reaction tank, and a heating plate is mounted on the inner wall of the reaction tank; a first driving motor is installed at the top of the reaction tank, a driving shaft is installed at the bottom of the first driving motor, the driving shaft penetrates through the top of the reaction tank and is rotationally connected with the reaction tank, a plurality of spiral blades arranged at intervals are arranged on the side face of the driving shaft, an aqueous solution in the reaction tank moves downwards, and the spiral blades are arranged on L-shaped rods; and one end of the L-shaped rod is fixed on the driving shaft. When the device for synthesizing hydrochloric acid by using the liquid chlorine tail gas is used, an aqueous solution is conveyed downwards through the rotation of the spiral blade, and chlorine also flows towards the inner wall of the tank body under the rotation of the guide plate and the sleeve, so that the contact of the chlorine and the aqueous solution is facilitated, and the reaction efficiency of the chlorine and the aqueous solution is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of filtrate production, in particular to a device for synthesizing hydrochloric acid by utilizing liquid chlorine tail gas. Background Art

[0002] During the production process of liquid chlorine, waste gas containing chlorine will be generated. If it is discharged directly, it will have an impact on the surrounding environment. In order to produce liquid chlorine, equipment is also needed to treat the waste gas. In order to avoid waste of resources, the liquid chlorine waste gas will be introduced into an aqueous solution and then heated to allow the chlorine to react with water to produce hydrochloric acid.

[0003] The chlorine addition pipeline of the existing reaction device is fixed in position, which can easily cause the chlorine and the aqueous solution near the pipeline to be saturated in advance, thereby affecting the reaction of chlorine and water, and there is also the possibility that the chlorine needs to float up and pass through the aqueous solution to be discharged. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a device for synthesizing hydrochloric acid by utilizing liquid chlorine tail gas.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for synthesizing hydrochloric acid using liquid chlorine tail gas is designed, comprising a reaction tank, support legs are installed at the bottom corners of the reaction tank, and a heating plate is installed on the inner wall of the reaction tank;

[0006] A first driving motor is installed on the top of the reaction tank, and a driving shaft is installed on the bottom of the first driving motor. The driving shaft passes through the top of the reaction tank, and the two are rotatably connected. A plurality of spiral blades arranged at intervals are arranged on the side of the driving shaft to allow the aqueous solution in the reaction tank to move downward, and the spiral blades are arranged on an L-shaped rod, and one end of the L-shaped rod is fixed on the driving shaft;

[0007] A connecting pipe is provided at the bottom of the reaction tank, the connecting pipe runs through the bottom of the reaction tank, and the two are rotatably connected, an air inlet pipe is rotatably connected at the bottom of the connecting pipe, and a driving mechanism for driving the air inlet pipe to rotate is also installed at the bottom of the connecting pipe, a plurality of air outlet holes arranged at intervals are opened at the top of the connecting pipe, a sleeve is coaxially sleeved at the top of the connecting pipe, a plurality of through holes are opened on the sleeve, a plurality of guide plates arranged at intervals are installed on the inner wall of the sleeve, the guide plates are arranged along the radial direction of the connecting pipe, and the side surfaces of the guide plates are fixed to the connecting pipe, wherein the air outlet hole is located between two adjacent guide plates;

[0008] A guide groove is provided on the side surface of the guide plate, and the guide groove is arranged along the radial direction of the connecting pipe.

[0009] Preferably, the reaction tank includes a tank body with an opening at the top and a top cover installed on the top of the tank body, wherein the first drive motor is installed on the top cover, and the drive shaft is rotatably connected to the top cover, the connecting pipe is rotatably installed on the bottom of the tank body, the support legs are installed on the bottom of the tank body, and the heating plate is fixed on the inner wall of the tank body.

[0010] Preferably, the driving mechanism includes a first gear, which is coaxially arranged at the bottom of the connecting tube, a second gear is meshed on one side of the first gear, a rotating shaft is coaxially mounted on the second gear, a second driving motor is mounted at the bottom of the rotating shaft, and the second driving motor is fixed to the bottom of the tank body through a bracket.

[0011] Preferably, a liquid adding pipe is installed on the top of the top cover, and a liquid draining pipe is installed on the bottom of the tank body.

[0012] Preferably, a window is installed on one side of the tank body, and a sight glass is installed in the window.

[0013] Preferably, a plurality of stirring shafts arranged at intervals are mounted on the driving shaft.

[0014] Preferably, an exhaust pipe is installed on the top of the top cover, a conduit is installed on the top of the exhaust pipe, the other end of the conduit is connected to the box body and placed in the box body, and alkali solution is filled in the box body, and the box body is installed on the side of the tank body.

[0015] Preferably, the top of the cross section of the sleeve is a concave downward arcuate surface.

[0016] The design scheme proposed by the utility model has the following beneficial effects during application:

[0017] 1. The device for synthesizing hydrochloric acid using liquid chlorine tail gas transports the aqueous solution downward through the rotation of the spiral blade, so that the aqueous solution can be more fully contacted with the chlorine gas transported into the tank from the bottom of the tank. At this time, the chlorine gas will also flow toward the inner wall of the tank under the rotation of the guide plate and the sleeve, which not only helps the contact between the chlorine gas and the aqueous solution, but also accelerates the reaction efficiency of the chlorine gas and the aqueous solution.

[0018] 2. The device for synthesizing hydrochloric acid using liquid chlorine tail gas rotates with the driving shaft through the stirring shaft, so that the stirring shaft stirs the chlorine gas and the aqueous solution, thereby further accelerating the reaction rate of the chlorine gas and the aqueous solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 This is the internal structure diagram of the tank body of the utility model;

[0022] Figure 4 This is a front view of the internal structure of the tank of the utility model;

[0023] Figure 5 This is a structural diagram of the connecting pipe of the utility model.

[0024] In the figure: 1. tank body; 2. top cover; 3. first drive motor; 4. drive shaft; 5. stirring shaft; 6. spiral blade; 7. L-shaped rod; 8. connecting pipe; 9. air inlet pipe; 10. sleeve; 11. through hole; 12. air outlet; 13. guide plate; 14. guide groove; 15. first gear; 16. second gear; 17. rotating shaft; 18. second drive motor; 19. exhaust pipe; 20. conduit; 21. box body; 22. window; 23. liquid adding pipe; 24. liquid discharging pipe; 25. supporting leg. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-Figure 5 , a device for synthesizing hydrochloric acid using liquid chlorine tail gas, comprising a reaction tank, the reaction tank comprising a tank body 1 with an opening at the top, and a top cover 2 installed on the top of the tank body 1, support legs 25 are installed at the bottom corners of the reaction tank (that is, the support legs 25 are installed on the bottom of the tank body 1), a heating plate is installed on the inner wall of the reaction tank (the heating plate is fixed on the inner wall of the tank body 1), a liquid adding pipe 23 is installed on the top of the top cover 2, and a liquid draining pipe 24 is installed at the bottom of the tank body 1, and an aqueous solution is added into the tank body 1 from the liquid adding pipe 23;

[0027] like Figure 4 and Figure 5As shown, a connecting pipe 8 is provided at the bottom of the reaction tank, and the connecting pipe 8 passes through the bottom of the reaction tank, and the two are rotatably connected, that is, the connecting pipe 8 is rotatably installed on the bottom of the tank body 1, and an air inlet pipe 9 is rotatably connected to the bottom of the connecting pipe 8, and a driving mechanism for driving the air inlet pipe 9 to rotate is also installed at the bottom of the connecting pipe 8, and a plurality of air outlet holes 12 arranged at intervals are provided at the top of the connecting pipe 8, and a sleeve 10 is also coaxially sleeved on the top of the connecting pipe 8, and the top of the cross-section of the sleeve 10 is a concave downward arc surface, and a plurality of through holes 11 are provided on the sleeve 10, so that when the sleeve 10 rotates, chlorine gas and the aqueous solution entering the sleeve 10 can approach the through holes 11 when the sleeve 10 rotates, so that the chlorine gas is discharged from the sleeve 10 and the aqueous solution enters the sleeve 10. More aqueous solution contacts; a plurality of guide plates 13 arranged at intervals are installed on the inner wall of the sleeve 10, and the guide plates 13 are arranged along the radial direction of the connecting pipe 8, and the side surfaces of the guide plates 13 are fixed to the connecting pipe 8, wherein the air outlet 12 is located between two adjacent guide plates 13, and the air inlet pipe 9 is connected to the chlorine liquefaction device, and the tail gas mixed with chlorine will be discharged into the connecting pipe 8 along the air inlet pipe 9, and the driving mechanism will drive the connecting pipe 8 to rotate, so that the chlorine flows along the guide plates 13 from the air outlet 12 and is discharged from the through hole 11, so that the chlorine in the aqueous solution can have a tendency to flow toward the inner wall of the tank body 1, so that the chlorine is no longer limited to contact with the aqueous solution around the connecting pipe 8, so that the chlorine can contact with a wider range of aqueous solutions.

[0028] Among them, the driving mechanism includes a first gear 15, which is coaxially arranged at the bottom of the connecting tube 8. A second gear 16 is meshed on one side of the first gear 15. A rotating shaft 17 is coaxially installed on the second gear 16. A second driving motor 18 is installed at the bottom of the rotating shaft 17. The second driving motor 18 is fixed to the bottom of the tank body 1 through a bracket. Under the transmission between the two gears, the second driving motor 18 provides power for the rotation of the connecting tube 8.

[0029] In order to improve the flow guiding effect of the guide plate 13 on the flow of chlorine, Figure 5 As shown, a guide groove 14 is provided on the side surface of the guide plate 13 , and the guide groove 14 is arranged along the radial direction of the connecting pipe 8 .

[0030] like Figure 1 and Figure 3As shown, a first drive motor 3 is installed on the top of the reaction tank (that is, the first drive motor 3 is installed on the top cover 2), and a drive shaft 4 is installed on the bottom of the first drive motor 3. The drive shaft 4 passes through the top of the reaction tank, and the two are rotatably connected (that is, the drive shaft 4 is rotatably connected to the top cover 2). A plurality of spiral blades 6 are arranged at intervals on the side of the drive shaft 4 to allow the aqueous solution in the reaction tank to move downward, and the spiral blades 6 are arranged on an L-shaped rod 7, one end of the L-shaped rod 7 is fixed on the drive shaft 4. After chlorine enters the tank body 1, the first drive motor 3 will drive the drive shaft 4 to rotate, and the spiral blades 6 will push the aqueous solution to move downward, allowing the aqueous solution to flip up and down in the tank body 1, so that more aqueous solution can contact with chlorine, thereby improving the efficiency of chlorine dissolving in the aqueous solution.

[0031] The mixed solution is heated by the heating plate, so that the chlorine gas dissolves in the aqueous solution and reacts to produce the required hydrochloric acid. Finally, after the reaction is completed, the hydrochloric acid is discharged from the drain pipe 24.

[0032] In order to further improve the reaction efficiency of chlorine gas and aqueous solution, a plurality of stirring shafts 5 arranged at intervals are installed on the driving shaft 4. The stirring shafts 5 rotate with the rotation of the driving shaft 4, thereby stirring the aqueous solution and allowing the chlorine gas and aqueous solution to react faster.

[0033] During the reaction, in order to facilitate the operator to observe, Figure 1 As shown, a window 22 is installed on one side of the tank body 1, and a visual glass is installed in the window 22.

[0034] During the reaction process, an exhaust pipe 19 is installed on the top of the top cover 2, and a conduit 20 is installed on the top of the exhaust pipe 19. The other end of the conduit 20 is connected to the box body 21 and placed in the box body 21. The box body 21 is filled with alkali solution, and the box body 21 is installed on the side of the tank body 1. In actual use, the alkali solution is sodium hydroxide solution, and a discharge port with a valve is also provided at the bottom of the box body 21 to neutralize excess exhaust gas.

[0035] It should be noted that electromagnetic valves are installed on both the liquid adding pipe 23 and the liquid discharging pipe 24 .

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for synthesizing hydrochloric acid using liquid chlorine tail gas, characterized in that: It comprises a reaction tank, wherein support legs (25) are installed at the bottom corners of the reaction tank, and a heating plate is installed on the inner wall of the reaction tank; A first driving motor (3) is installed on the top of the reaction tank, and a driving shaft (4) is installed on the bottom of the first driving motor (3). The driving shaft (4) passes through the top of the reaction tank, and the two are rotatably connected. A plurality of spiral blades (6) arranged at intervals are arranged on the side of the driving shaft (4) to allow the aqueous solution in the reaction tank to move downward, and the spiral blades (6) are arranged on an L-shaped rod (7), and one end of the L-shaped rod (7) is fixed on the driving shaft (4); A connecting pipe (8) is provided at the bottom of the reaction tank, the connecting pipe (8) passes through the bottom of the reaction tank, and the two are rotatably connected. An air inlet pipe (9) is rotatably connected to the bottom of the connecting pipe (8), and a driving mechanism for driving the air inlet pipe (9) to rotate is also installed at the bottom of the connecting pipe (8). A plurality of air outlet holes (12) arranged at intervals are provided at the top of the connecting pipe (8). A sleeve (10) is also coaxially sleeved at the top of the connecting pipe (8), and a plurality of through holes (11) are provided on the sleeve (10). A plurality of guide plates (13) arranged at intervals are installed on the inner wall of the sleeve (10), and the guide plates (13) are arranged along the radial direction of the connecting pipe (8), and the side surfaces of the guide plates (13) are fixed to the connecting pipe (8), wherein the air outlet hole (12) is located between two adjacent guide plates (13); A flow guide groove (14) is provided on the side surface of the flow guide plate (13), and the flow guide groove (14) is arranged along the radial direction of the connecting pipe (8).

2. The device for synthesizing hydrochloric acid using liquid chlorine tail gas according to claim 1, characterized in that: The reaction tank comprises a tank body (1) with an opening at the top, and a top cover (2) mounted on the top of the tank body (1), wherein a first drive motor (3) is mounted on the top cover (2), a drive shaft (4) is rotatably connected to the top cover (2), a connecting pipe (8) is rotatably mounted on the bottom of the tank body (1), a support leg (25) is mounted on the bottom of the tank body (1), and a heating plate is fixed on the inner wall of the tank body (1).

3. The device for synthesizing hydrochloric acid using liquid chlorine tail gas according to claim 2, characterized in that: The driving mechanism comprises a first gear (15), the first gear (15) is coaxially arranged at the bottom of the connecting pipe (8), a second gear (16) is meshed on one side of the first gear (15), a rotating shaft (17) is coaxially mounted on the second gear (16), a second driving motor (18) is mounted at the bottom of the rotating shaft (17), and the second driving motor (18) is fixed to the bottom of the tank body (1) through a bracket.

4. The device for synthesizing hydrochloric acid using liquid chlorine tail gas according to claim 2, characterized in that: A liquid adding pipe (23) is installed on the top of the top cover (2), and a liquid draining pipe (24) is installed on the bottom of the tank body (1).

5. The device for synthesizing hydrochloric acid using liquid chlorine tail gas according to claim 2, characterized in that: A window (22) is installed on one side of the tank body (1), and a visual glass is installed in the window (22).

6. The device for synthesizing hydrochloric acid using liquid chlorine tail gas according to claim 2, characterized in that: A plurality of stirring shafts (5) arranged at intervals are also mounted on the driving shaft (4).

7. The device for synthesizing hydrochloric acid using liquid chlorine tail gas according to claim 2, characterized in that: An exhaust pipe (19) is installed on the top of the top cover (2), a conduit (20) is installed on the top of the exhaust pipe (19), the other end of the conduit (20) is connected to a box body (21) and placed in the box body (21), and an alkali solution is filled in the box body (21), and the box body (21) is installed on the side of the tank body (1).

8. The device for synthesizing hydrochloric acid using liquid chlorine tail gas according to claim 1, characterized in that: The top of the cross section of the sleeve (10) is a concave downward arc surface.

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