Tower reactor for sodium hydrosulfide production

Abstract

The utility model provides a tower reactor for sodium hydrosulfide production, and belongs to the technical field of sodium hydrosulfide production. Comprising a tank body, and supporting legs are fixedly installed at the bottom of the tank body. The hydrogen sulfide gas is injected into the first liquid storage tank filled with the sodium sulfide solution through the gas inlet pipe, the hydrogen sulfide gas is in contact with the sodium sulfide solution in the first liquid storage tank, and the hydrogen sulfide gas penetrates through the two gas breaking nets to break formed bubbles, so that the hydrogen sulfide gas can be more fully in contact with the sodium sulfide solution; the hydrogen sulfide gas after contact passes through the gas outlet and enters the second liquid storage tank from the first gas pipe, the process in the first liquid storage tank is repeated in the second liquid storage tank, the hydrogen sulfide gas enters the third liquid storage tank through the second gas pipe and is in contact with the sodium sulfide solution, and finally the hydrogen sulfide gas is exhausted through the exhaust pipe, so that the hydrogen sulfide gas can be effectively absorbed; and the discharged gas does not pollute the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium hydrosulfide production, in particular to a tower reactor for sodium hydrosulfide production. Background Art

[0002] Sodium hydrosulfide is a colorless needle-shaped crystal that is easy to deliquesce. It decomposes and releases hydrogen sulfide at the melting point. It is easily soluble in water and alcohol. The aqueous solution is strongly alkaline. It reacts with acid to generate hydrogen sulfide, which tastes bitter. It is used in the dye industry to synthesize organic intermediates and auxiliaries for preparing sulfur dyes. It is used in the leather industry for dehairing and tanning raw hides. It is used in the fertilizer industry to remove monomer sulfur in activated carbon desulfurizers. It is widely used in the mining industry for copper ore dressing and in the production of artificial fibers for sulfite dyeing. It is a raw material for the manufacture of ammonium sulfide and pesticide ethyl mercaptan semi-finished products. It is also used for wastewater treatment.

[0003] The tower reactor adopts the absorption method for preparation, and the alkali sulfide solution (or caustic soda solution) absorbs hydrogen sulfide gas. The alkali sulfide solution (or caustic soda solution) in the existing tower reactor cannot fully contact with the hydrogen sulfide gas, resulting in incomplete absorption of the hydrogen sulfide gas by the alkali sulfide solution (or caustic soda solution). The hydrogen sulfide gas that is not fully absorbed causes environmental pollution after being discharged. Therefore, the present application provides a tower reactor for sodium hydrosulfide production to meet the demand. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a tower reactor for sodium hydrosulfide production to solve the limitation problem that the alkali sulfide solution (or caustic soda solution) in the existing tower reactor cannot fully contact with the hydrogen sulfide gas, resulting in the alkali sulfide solution (or caustic soda solution) not completely absorbing the hydrogen sulfide gas, and the hydrogen sulfide gas that is not fully absorbed causes environmental pollution after being discharged.

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

[0006] A tower reactor for producing sodium hydrosulfide comprises: a tank body, a supporting leg is fixedly installed on the bottom of the tank body, a first liquid storage tank is fixedly installed on the inner cavity of the tank body, an air inlet is opened on one side of the first liquid storage tank, and an air outlet is opened on the other end, an air inlet pipe is fixedly installed on the inner cavity of the air inlet, a first air pipe is fixedly installed on the inner cavity of the air outlet, an air breaking net is fixedly installed on the inner cavity of the first liquid storage tank, a liquid outlet pipe is penetrated and installed on the bottom of the first liquid storage tank, a solenoid valve is fixedly installed on the outer wall of the liquid outlet pipe, a second liquid storage tank is fixedly installed on the outer wall of the tank body at one end of the first air pipe away from the first liquid storage tank, a second air pipe is penetrated and installed on the side of the second liquid storage tank away from the first air pipe, a third liquid storage tank is penetrated and installed on the end of the second air pipe away from the second liquid storage tank, a liquid injection pipe is penetrated and installed in the middle of the top of the third liquid storage tank, and an exhaust pipe is fixedly installed on the top of the third liquid storage tank and on the side away from the second air pipe.

[0007] Preferably, the number of the supporting legs is four, and the four supporting legs are symmetrically arranged at the bottom of the tank body, and pads are fixedly installed at the bottom of the four supporting legs.

[0008] Preferably, the bottom of the first liquid storage tank is configured to be conical.

[0009] Preferably, the air inlet pipe is connected to an air pump, and the liquid injection pipe is connected to a water pump.

[0010] Preferably, a one-way valve is provided in one end of the first air pipe connected to the second liquid storage tank, and a one-way valve is provided in one end of the second air pipe connected to the third liquid storage tank.

[0011] Preferably, the bottoms of the second liquid storage tank and the third liquid storage tank are both provided with a liquid outlet pipe and a solenoid valve, the liquid outlet pipe at the bottom of the third liquid storage tank is connected through the top of the second liquid storage tank, and the liquid outlet pipe at the bottom of the second liquid storage tank is connected through the top of the first liquid storage tank.

[0012] Preferably, the solenoid valves at the bottom of the second liquid storage tank and the third liquid storage tank are controlled simultaneously, and the solenoid valve at the bottom of the first liquid storage tank is controlled separately.

[0013] Preferably, the air inlet and the air outlet between two adjacent ones of the first liquid storage tank, the second liquid storage tank and the third liquid storage tank are in opposite positions.

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

[0015] 1. In the above scheme, hydrogen sulfide gas is injected into the first liquid storage tank filled with alkaline sulfide solution through the air inlet pipe, the hydrogen sulfide gas will contact with the alkaline sulfide solution in the first liquid storage tank, the hydrogen sulfide gas will pass through two gas breaking nets to break the bubbles formed, so that the hydrogen sulfide gas can contact with the alkaline sulfide solution more fully, and the hydrogen sulfide gas after contact will pass through the air outlet from the first air pipe into the second liquid storage tank, and repeat the process in the first liquid storage tank in the second liquid storage tank, and enter the third liquid storage tank through the second air pipe to contact with the alkaline sulfide solution, and finally be discharged through the exhaust pipe. Through three times of contact with the alkaline sulfide solution, the hydrogen sulfide gas can be effectively absorbed, so that the discharged gas will not pollute the environment.

[0016] 2. In the above scheme, the solutions in the first liquid storage tank, the second liquid storage tank and the third liquid storage tank can be discharged by connecting through the liquid outlet pipe, so that the solution in the second liquid storage tank can enter the first liquid storage tank for continued use, and the solution in the third liquid storage tank can enter the second liquid storage tank for use, thereby achieving full utilization of the solution and avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a tower reactor for sodium hydrosulfide production;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of a tower reactor tank for sodium hydrosulfide production;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a liquid storage tank of a tower reactor for sodium hydrosulfide production;

[0021] Figure 4 This is a schematic diagram of the gas breaking network structure of the tower reactor used in the production of sodium hydrosulfide.

[0022] Reference numerals

[0023] 1. Tank body; 2. Support legs; 3. First liquid storage tank; 4. Air inlet; 5. Air inlet pipe; 6. Air outlet; 7. First air pipe; 8. Air breaking net; 9. Liquid outlet pipe; 10. Solenoid valve; 11. Second liquid storage tank; 12. Second air pipe; 13. Third liquid storage tank; 14. Liquid filling pipe; 15. Exhaust pipe.

[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 tower reactor for sodium hydrosulfide production provided by the utility model is described in detail below 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] like Figure 1 , Figure 3 and Figure 4 As shown, the embodiment of the utility model provides a tower reactor for sodium hydrosulfide production, comprising: a tank body 1, a support leg 2 is fixedly installed at the bottom of the tank body 1, a first liquid storage tank 3 is fixedly installed in the inner cavity of the tank body 1, an air inlet 4 is opened on one side of the first liquid storage tank 3, and an air outlet 6 is opened at the other end, an air inlet pipe 5 is fixedly installed in the inner cavity of the air inlet 4, a first air pipe 7 is fixedly installed in the inner cavity of the air outlet 6, an air breaking net 8 is fixedly installed in the inner cavity of the first liquid storage tank 3, and a liquid outlet pipe 9 is installed through the bottom of the first liquid storage tank 3 A solenoid valve 10 is fixedly installed on the outer wall of the liquid outlet pipe 9, and a second liquid storage tank 11 is fixedly installed through the outer wall of the tank body 1 at one end of the first air pipe 7 away from the first liquid storage tank 3, a second air pipe 12 is installed through the side of the second liquid storage tank 11 away from the first air pipe 7, a third liquid storage tank 13 is installed through the end of the second air pipe 12 away from the second liquid storage tank 11, a liquid injection pipe 14 is installed through the middle of the top of the third liquid storage tank 13, and an exhaust pipe 15 is fixedly installed on the top of the third liquid storage tank 13 and on the side away from the second air pipe 12.

[0027] like Figure 1 and Figure 2 As shown, there are four supporting legs 2, and the four supporting legs 2 are symmetrically arranged at the bottom of the tank body 1. Pads are fixedly installed at the bottom of the four supporting legs 2 to increase the contact area between the supporting legs 2 and the ground, thereby making the supporting legs 2 more stable.

[0028] like Figure 2 and Figure 3 As shown, the bottom of the first liquid storage tank 3 is configured to be conical. By configuring the conical shape, the water can be drained more thoroughly without any residue.

[0029] like Figure 1 and Figure 2 As shown, the air inlet pipe 5 is connected to an air pump, and the liquid injection pipe 14 is connected to a water pump. The air pump is provided to supply air, and the water pump is provided to inject the liquid.

[0030] like Figure 2 As shown, a one-way valve is provided in one end of the first air pipe 7 connected to the second liquid storage tank 11, and a one-way valve is provided in one end of the second air pipe 12 connected to the third liquid storage tank 13. By providing the one-way valve, only air can be discharged, thereby preventing the solution from flowing back.

[0031] like Figure 1 and Figure 2 As shown, the bottom of the second liquid storage tank 11 and the third liquid storage tank 13 are both provided with a liquid outlet pipe 9 and a solenoid valve 10, the liquid outlet pipe 9 at the bottom of the third liquid storage tank 13 is connected with the top of the second liquid storage tank 11, and the liquid outlet pipe 9 at the bottom of the second liquid storage tank 11 is connected with the top of the first liquid storage tank 3, and the connection through the liquid outlet pipe 9 can discharge the solutions in the first liquid storage tank 3, the second liquid storage tank 11 and the third liquid storage tank 13, so that the solution in the second liquid storage tank 11 enters the first liquid storage tank 3 for continued use, and the solution in the third liquid storage tank 13 enters the second liquid storage tank 11 for use, so as to make full use of the solution and avoid waste.

[0032] like Figure 1 and Figure 2 As shown, the solenoid valves 10 at the bottom of the second liquid storage tank 11 and the third liquid storage tank 13 are controlled simultaneously, and the solenoid valve 10 at the bottom of the first liquid storage tank 3 is controlled separately. The solution in the first liquid storage tank 3 needs to be discharged first, and then the liquid outlet pipe 9 is closed, and then the solutions in the second liquid storage tank 11 and the third liquid storage tank 13 are discharged downward in sequence through the solenoid valve 10.

[0033] like Figure 2 and Figure 3 As shown, the air inlet 4 and the air outlet 6 between the first liquid storage tank 3, the second liquid storage tank 11 and the third liquid storage tank 13 are in opposite positions. The opposite positions can increase the distance of the gas entering the upper layer, so that the gas can contact with the solution more fully, and at the same time, the gas can pass through the air breaking net 8 twice each time to break the bubbles.

[0034] The technical solution provided by the utility model is that hydrogen sulfide gas is injected into the first liquid storage tank 3 filled with alkaline sulfide solution through the air inlet pipe 5, the hydrogen sulfide gas will contact with the alkaline sulfide solution in the first liquid storage tank 3, the hydrogen sulfide gas will pass through the two gas breaking nets 8 to break the bubbles formed, so that the hydrogen sulfide gas can contact with the alkaline sulfide solution more fully, and the hydrogen sulfide gas after contact will pass through the air outlet 6 and enter the second liquid storage tank 11 from the first air pipe 7, and repeat the process in the first liquid storage tank 3 in the second liquid storage tank 11, and enter the third liquid storage tank 13 through the second air pipe 12 to contact with the alkaline sulfide solution, and finally be discharged through the exhaust pipe 15, and connected through the liquid outlet pipe 9, so that the solutions in the first liquid storage tank 3, the second liquid storage tank 11 and the third liquid storage tank 13 can be discharged, so that the solution in the second liquid storage tank 11 enters the first liquid storage tank 3 for continuous use, and the solution in the third liquid storage tank 13 enters the second liquid storage tank 11 for use, so as to achieve full utilization of the solution and avoid waste.

[0035] 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 tower reactor for sodium hydrosulfide production, comprising: A tank body (1), wherein a support leg (2) is fixedly installed at the bottom of the tank body (1), characterized in that a first liquid storage tank (3) is fixedly installed in the inner cavity of the tank body (1), an air inlet (4) is opened on one side of the first liquid storage tank (3), and an air outlet (6) is opened at the other end, an air inlet pipe (5) is fixedly installed in the inner cavity of the air inlet (4), a first air pipe (7) is fixedly installed in the inner cavity of the air outlet (6), an air breaking net (8) is fixedly installed in the inner cavity of the first liquid storage tank (3), a liquid outlet pipe (9) is installed through the bottom of the first liquid storage tank (3), and the outer wall of the liquid outlet pipe (9) is fixedly installed. A solenoid valve (10) is installed; one end of the first air pipe (7) away from the first liquid storage tank (3) passes through the outer wall of the tank body (1) to fix a second liquid storage tank (11); a second air pipe (12) passes through the side of the second liquid storage tank (11) away from the first air pipe (7); a third liquid storage tank (13) passes through the end of the second air pipe (12) away from the second liquid storage tank (11); a liquid injection pipe (14) passes through the middle of the top of the third liquid storage tank (13); and an exhaust pipe (15) is fixedly installed on the top of the third liquid storage tank (13) and on the side away from the second air pipe (12).

2. The sodium hydrosulfide production tower reactor according to claim 1, characterized in that The number of the supporting legs (2) is four, and the four supporting legs (2) are symmetrically arranged at the bottom of the tank body (1), and pads are fixedly mounted at the bottoms of the four supporting legs (2).

3. The sodium hydrosulfide production tower reactor according to claim 1, characterized in that The bottom of the first liquid storage tank (3) is configured to be conical.

4. The sodium hydrosulfide production tower reactor according to claim 1, characterized in that The air inlet pipe (5) is connected to an air pump, and the liquid injection pipe (14) is connected to a water pump.

5. The sodium hydrosulfide production tower reactor according to claim 1, characterized in that A one-way valve is provided in one end of the first air pipe (7) connected to the second liquid storage tank (11), and a one-way valve is provided in one end of the second air pipe (12) connected to the third liquid storage tank (13).

6. The sodium hydrosulfide production tower reactor according to claim 1, characterized in that The bottoms of the second liquid storage tank (11) and the third liquid storage tank (13) are both provided with a liquid outlet pipe (9) and a solenoid valve (10); the liquid outlet pipe (9) at the bottom of the third liquid storage tank (13) is connected through the top of the second liquid storage tank (11); and the liquid outlet pipe (9) at the bottom of the second liquid storage tank (11) is connected through the top of the first liquid storage tank (3).

7. The sodium hydrosulfide production tower reactor according to claim 1, characterized in that The solenoid valves (10) at the bottom of the second liquid storage tank (11) and the third liquid storage tank (13) are controlled simultaneously, and the solenoid valve (10) at the bottom of the first liquid storage tank (3) is controlled individually.

8. The tower reactor for sodium hydrosulfide production according to claim 1, characterized in that The air inlet (4) and the air outlet (6) between two adjacent ones of the first liquid storage tank (3), the second liquid storage tank (11) and the third liquid storage tank (13) are located in opposite positions.

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