CN211051255U - Liquid phase recovery device for recovering waste alkali - Google Patents

Abstract

The utility model discloses a retrieve liquid phase recovery unit for alkali waste, include: the shell assembly comprises a guide plate, an air inlet, a filling plate, a fixing rod, a shell, an air outlet and a pipe body; the spray washing assembly comprises a transverse pipe, a vertical pipe, a nozzle, a valve, a liquid outlet pipe, a through hole, a water pump a, a liquid suction pipe and a liquid tank; the circulating assembly comprises a return pipe, a switch, a liquid conveying pipe, a water pump b, a liquid pumping pipe, a collecting tank, a liquid discharging pipe, a gas-liquid separator and a gas port, and the gas outlet end of the gas-liquid separator is communicated with the gas port; the industrial gas cleaned by the sodium hydroxide solution is led into the gas-liquid separator through the pipe body, the gas-liquid separator separates liquid in the treated industrial gas and sends the liquid into the collecting tank, the liquid is sent into the liquid tank through the water pump b, the sodium hydroxide solution pumped out by the water pump a is sprayed into the interior of the shell through the nozzle, and the sodium hydroxide solution flows into the liquid tank through the guide plate and the return pipe after reaction, so that the sodium hydroxide solution is recycled, and resources are saved.

Description

Liquid phase recovery device for recovering waste alkali

The technical field is as follows:

the utility model relates to an alkaline washing tower technical field specifically is a retrieve liquid phase recovery unit for spent caustic soda.

Background art:

the alkaline tower is mainly used for removing carbon dioxide in product gas, and the principle is that industrial gas containing a small amount of sulfide, carbon dioxide and the like is in countercurrent contact with dilute alkali liquor to remove hydrogen sulfide and carbon dioxide impurities, if the impurities are not removed, the carbon dioxide passes through a cold separation system and becomes dry ice to block tower trays, pipelines and overhead condensers of the rectifying tower. The gas in the alkaline tower meets the sodium hydroxide liquid phase and flows back, the gas phase at the top of the tower carries partial alkali liquor to be discharged and then enters a gas-liquid separation tank, and the gas phase discharged from the gas-liquid separation tank enters a rear system. At present, a liquid phase discharged from a gas-liquid separation tank is generally sent to a waste alkali tank by an alkali washing tower and is not utilized, so that the waste of product resources is caused. Therefore, a liquid phase recovery device for recovering the waste alkali is provided.

The utility model has the following contents:

an object of the utility model is to provide a retrieve liquid phase recovery unit for alkali waste to solve the problem that proposes among the above-mentioned background art.

The utility model discloses by following technical scheme implement: a liquid phase recovery device for recovering spent caustic, comprising: the shell assembly comprises a guide plate, an air inlet, a filling plate, a fixing rod, a shell, an air outlet and a pipe body; the spray washing assembly comprises a transverse pipe, a vertical pipe, a nozzle, a valve, a liquid outlet pipe, a through hole, a water pump a, a liquid suction pipe and a liquid tank; the circulation subassembly, the circulation subassembly includes back flow, switch, transfer line, water pump b, liquid suction pipe, collection tank, fluid-discharge tube, vapour and liquid separator and gas port, vapour and liquid separator's the end intercommunication of giving vent to anger has gas port, vapour and liquid separator's income gas end intercommunication has the body, vapour and liquid separator's infusion end intercommunication has the fluid-discharge tube, the one end intercommunication that vapour and liquid separator was kept away from to the fluid-discharge tube has the collection tank, one side intercommunication of collection tank has the liquid suction pipe, water pump b's liquid suction end is linked together with the liquid suction pipe, the liquid outlet end intercommunication of collection tank has the transfer line, the one end intercommunication that water pump b was kept away from to the transfer line has.

As further preferable in the present technical solution: the gas outlet has been seted up at the top of casing, the top and the body of gas outlet are linked together, the inboard bottom of casing is provided with the guide plate, the air inlet has been seted up to the lateral wall of casing, the inside wall fixedly connected with quantity of casing is the infill panel of two, the inside wall welding of casing has the dead lever that quantity is two.

As further preferable in the present technical solution: the top of guide plate intercommunication has the back flow, the one end of back flow runs through guide plate, casing and liquid tank in proper order and extends to the inside of liquid tank.

As further preferable in the present technical solution: the utility model discloses a nozzle, including casing, water pump a, imbibition end intercommunication of water pump a, the bottom and the liquid tank of pipette communicate with each other, water pump a's play liquid end intercommunication has the drain pipe, the lateral wall intercommunication of drain pipe has the violently pipe that quantity is two, violently the pipe is close to the one end of drain pipe and installs the valve, the lateral wall intercommunication of violently managing has the standpipe, the nozzle is installed to the one end of standpipe.

As further preferable in the present technical solution: the outer side wall of the nozzle is provided with a through hole.

As further preferable in the present technical solution: one side fixedly connected with switch of liquid tank, the electrical property output of switch respectively with water pump a and water pump b's electrical property input end electric connection.

The utility model has the advantages that: the industrial gas cleaned by the sodium hydroxide solution is led into the gas-liquid separator through the pipe body, the gas-liquid separator separates liquid in the treated industrial gas and sends the liquid into the collecting tank, the liquid is sent into the liquid tank through the water pump b, the sodium hydroxide solution pumped out by the water pump a is sprayed into the interior of the shell through the nozzle, and the sodium hydroxide solution flows into the liquid tank through the guide plate and the return pipe after reaction, so that the sodium hydroxide solution is recycled, and resources are saved.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the housing of the present invention;

fig. 3 is a schematic structural diagram of the nozzle of the present invention.

In the figure: 10. a housing assembly; 11. a baffle; 12. an air inlet; 13. a infill panel; 14. fixing the rod; 15. a housing; 16. an air outlet; 17. a pipe body; 20. a spray rinsing assembly; 21. a transverse tube; 22. a vertical tube; 23. a nozzle; 24. a valve; 25. a liquid outlet pipe; 26. a through hole; 27. a water pump a; 28. a pipette; 29. a liquid tank; 30. a circulation component; 31. a return pipe; 32. a switch; 33. a transfusion tube; 34. a water pump b; 35. a liquid pumping pipe; 36. a collection tank; 37. a liquid discharge pipe; 38. a gas-liquid separator; 39. and a gas port.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a liquid phase recovery device for recovering spent caustic, comprising:

the shell assembly 10, the shell assembly 10 includes guide plate 11, air inlet 12, packing plate 13, dead lever 14, body 15, air outlet 16 and tube 17;

a spray assembly 20, the spray assembly 20 comprising a cross pipe 21, a standpipe 22, a nozzle 23, a valve 24, a drain pipe 25, a through hole 26, a water pump a27, a pipette 28, and a liquid tank 29;

the circulating assembly 30 comprises a return pipe 31, a switch 32, a liquid conveying pipe 33, a water pump b34, a liquid pumping pipe 35, a collecting tank 36, a liquid discharging pipe 37, a gas-liquid separator 38 and a gas port 39, wherein the gas outlet end of the gas-liquid separator 38 is communicated with the gas port 39, the gas inlet end of the gas-liquid separator 38 is communicated with a pipe body 17, the liquid conveying end of the gas-liquid separator 38 is communicated with the liquid discharging pipe 37, one end, far away from the gas-liquid separator 38, of the liquid discharging pipe 37 is communicated with the collecting tank 36, one side, far away from the gas-liquid separator 38, of the collecting tank 36 is communicated with the liquid pumping pipe 35, the liquid pumping end of the water pump b34 is communicated with the liquid conveying pipe 35, the liquid outlet end of the collecting tank 36.

In this embodiment, specifically: gas outlet 16 has been seted up at casing 15's top, gas outlet 16's top is linked together with body 17, casing 15's inboard bottom is provided with guide plate 11, air inlet 12 has been seted up to casing 15's lateral wall, casing 15's inside wall fixedly connected with quantity is the infill panel 13 of two, casing 15's inside wall welding has the dead lever 14 that quantity is two, the contact reaction time of the setting up messenger sodium hydroxide solution of infill panel 13 and industrial gas increases to improve the treatment effeciency.

In this embodiment, specifically: the top of the guide plate 11 is communicated with a return pipe 31, one end of the return pipe 31 penetrates through the guide plate 11, the shell 15 and the liquid tank 29 in sequence and extends to the inside of the liquid tank 29, and the return pipe 31 can return the sodium hydroxide solution after reaction into the liquid tank 29 for recycling.

In this embodiment, specifically: water pump a27 fixed connection is in the lateral wall of casing 15, the imbibition end intercommunication of water pump a27 has pipette 28, the bottom and the liquid tank 29 of pipette 28 are linked together, the play liquid end intercommunication of water pump a27 has drain pipe 25, the lateral wall intercommunication of drain pipe 25 has the horizontal pipe 21 that the quantity is two, horizontal pipe 21 is close to the one end of drain pipe 25 and installs valve 24, horizontal pipe 21's lateral wall intercommunication has standpipe 22, nozzle 23 is installed to standpipe 22's one end, through above setting, water pump a27 transmits the inside sodium hydroxide solution of liquid tank 29 to horizontal pipe 21, and then spout into casing 15 through nozzle 23.

In this embodiment, specifically: the nozzle 23 has a through hole 26 formed in an outer wall thereof, and the through hole 26 is formed to assist the nozzle 23 in spraying the liquid into the housing 15.

In this embodiment, specifically: a switch 32 is fixedly connected to one side of the liquid tank 29, an electrical output end of the switch 32 is electrically connected to electrical input ends of the water pump a27 and the water pump b34, and the switch 32 controls the opening and closing of the water pump a27 and the water pump b 34.

The water pump a27 and the water pump b34 are model WQP water pumps.

Working principle or structural principle, industrial gas is led into casing 15 through air inlet 12, switch 32 is opened, water pump a27 transmits the inside sodium hydroxide solution of liquid case 29 to violently managing 21, and then spout into casing 15 through nozzle 23, the setting of infill panel 13 makes the contact reaction time of sodium hydroxide solution and industrial gas increase, thereby improve treatment effeciency, back flow 31 can flow back the sodium hydroxide solution after the reaction into liquid case 29, reuse, resources are saved, industrial gas after the reaction leads to gas-liquid separator 38 through body 17, gas-liquid separator 38 sends the liquid separation in the industrial gas after handling into collection tank 36, send into liquid case 29 through water pump b, reuse, resources are saved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A liquid phase recovery device for recovering spent caustic is characterized by comprising:

the shell assembly (10), the shell assembly (10) comprises a guide plate (11), an air inlet (12), a filling plate (13), a fixing rod (14), a shell (15), an air outlet (16) and a pipe body (17);

the spray washing assembly (20), the spray washing assembly (20) comprises a transverse pipe (21), a vertical pipe (22), a nozzle (23), a valve (24), a liquid outlet pipe (25), a through hole (26), a water pump a (27), a liquid suction pipe (28) and a liquid tank (29);

a circulating component (30), wherein the circulating component (30) comprises a return pipe (31), a switch (32), a liquid conveying pipe (33), a water pump b (34), a liquid extracting pipe (35), a collecting tank (36), a liquid discharging pipe (37), a gas-liquid separator (38) and a gas port (39), the gas outlet end of the gas-liquid separator (38) is communicated with a gas port (39), the gas inlet end of the gas-liquid separator (38) is communicated with a pipe body (17), the liquid conveying end of the gas-liquid separator (38) is communicated with a liquid discharge pipe (37), one end of the liquid discharge pipe (37) far away from the gas-liquid separator (38) is communicated with a collection tank (36), one side of the collecting tank (36) is communicated with a liquid extracting pipe (35), the liquid extracting end of the water pump b (34) is communicated with the liquid extracting pipe (35), the liquid outlet end of the collecting tank (36) is communicated with a liquid conveying pipe (33), and one end, far away from the water pump b (34), of the liquid conveying pipe (33) is communicated with a liquid tank (29).

2. The liquid phase recovery apparatus for recovering spent caustic according to claim 1, wherein: gas outlet (16) have been seted up at the top of casing (15), the top and body (17) of gas outlet (16) are linked together, the inboard bottom of casing (15) is provided with guide plate (11), air inlet (12) have been seted up to the lateral wall of casing (15), the inside wall fixedly connected with quantity of casing (15) is filling plate (13) of two, the inside wall welding of casing (15) has quantity to be dead lever (14) of two.

3. The liquid phase recovering apparatus for recovering spent caustic according to claim 2, wherein: the top of the guide plate (11) is communicated with a return pipe (31), and one end of the return pipe (31) penetrates through the guide plate (11), the shell (15) and the liquid tank (29) in sequence and extends to the inside of the liquid tank (29).

4. The liquid phase recovery apparatus for recovering spent caustic according to claim 1, wherein: the utility model discloses a washing machine, including casing (15), water pump a (27), imbibition end intercommunication of water pump a (27) has pipette (28), the bottom and liquid tank (29) of pipette (28) are linked together, the play liquid end intercommunication of water pump a (27) has drain pipe (25), the lateral wall intercommunication of drain pipe (25) has horizontal pipe (21) that quantity is two, violently pipe (21) are close to the one end of drain pipe (25) and install valve (24), the lateral wall intercommunication of violently pipe (21) has standpipe (22), nozzle (23) are installed to the one end of standpipe (22).

5. The liquid phase recovering apparatus for recovering spent caustic according to claim 4, wherein: the outer side wall of the nozzle (23) is provided with a through hole (26).

6. The liquid phase recovery apparatus for recovering spent caustic according to claim 1, wherein: one side of the liquid tank (29) is fixedly connected with a switch (32), and the electrical output end of the switch (32) is electrically connected with the electrical input ends of the water pump a (27) and the water pump b (34) respectively.

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