Sodium bicarbonate desulfurization device

Abstract

The utility model relates to the technical field of baking soda desulfurization, and discloses a baking soda desulfurization device which comprises a treatment tank, and a stirring assembly for improving the mixing efficiency is arranged in the middle of the bottom of the treatment tank. According to the baking soda desulfurization device, by arranging a spraying assembly, during smoke desulfurization, smoke enters a hollow tank along a smoke inlet pipe, and at the moment, a water pump is connected to an external power supply, so that the water pump pumps baking soda lime water fused in a treatment tank through a water pumping pipe, and the baking soda lime water enters an L-shaped pipe from a water drainage pipe; the baking soda lime water is sprayed from the bottom of the E-shaped pipe, and is sprayed to the smoke coming from the smoke inlet pipe, so that the smoke is influenced by the baking soda lime water, sulfur dioxide in the smoke is removed, the E-shaped pipe is E-shaped, the bottom of the E-shaped pipe is provided with a plurality of spray heads, and the inner diameter of the smoke exhaust tank is filled with the spray heads, so that the contact area between the spray and the smoke is increased, and the smoke exhaust effect is improved. Furthermore, the efficiency of removing sulfur dioxide in the smoke is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of baking soda desulfurization, in particular to a baking soda desulfurization device. Background Art

[0002] Baking soda desulfurization has the advantages of low initial investment and wide application, and has become an effective flue gas purification method. It can be used not only in coal-fired power plants, gas power generation projects, garbage or alternative fuel incineration plants, but also in industrial furnaces in glass, cement, metallurgy and other industries. It has a simple process, reliable technology, no secondary pollution such as wastewater treatment, and low investment and operating costs, making it more suitable for the current low-sulfur flue gas treatment.

[0003] A baking soda dry desulfurization flue gas bypass device disclosed in publication number CN214635393U actively adjusts the amount of flue gas passing through the bypass through a centrifugal fan and an adjustable damper, thereby actively controlling the desulfurization reaction temperature to keep it within the optimal range, thereby improving the desulfurization efficiency and reducing the consumption of the desulfurization agent baking soda.

[0004] However, the soda dry flue gas bypass device has the following disadvantages:

[0005] (1) During the desulfurization of smoke, the reaction agents such as baking soda and lime water merge slowly, resulting in incomplete removal of sulfur dioxide in the smoke;

[0006] (2) During the desulfurization period, due to the low contact range between the fused reactants and the smoke, some of the smoke drifts to the outside without being sprayed, reducing the desulfurization efficiency and increasing pollution. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] The technical problem solved by the utility model is to provide a baking soda desulfurization device which is highly practical, can be simply operated and has a relatively simple structure. It solves the problem proposed in the above background technology that the fusion of reactants such as baking soda and lime water is slow, which leads to incomplete removal of sulfur dioxide in the smoke, and the contact range between the fused reactants and the smoke is low, resulting in some parts of the smoke drifting to the outside without being sprayed, thereby reducing the desulfurization efficiency.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a baking soda desulfurization device, including a treatment tank, a stirring assembly for improving mixing efficiency is arranged in the middle of the bottom of the treatment tank, a middle-through tank is arranged on the top of the treatment tank, a fixing plate is fixedly connected to one side of the top of the middle-through tank, a pump barrel is fixedly connected to one side of the fixing plate, and a spray assembly for increasing the desulfurization efficiency is arranged inside the pump barrel.

[0011] Optionally, the stirring assembly includes a driving motor arranged in the middle of the bottom of the processing tank, the output end of the driving motor passes through the bottom of the processing tank and is fixedly connected to a rotating rod, and the surface of the rotating rod is provided with a stirring ring for mixing baking soda and lime water.

[0012] Optionally, the spray assembly includes a water pump arranged inside the pump barrel, the water pump end is connected with a water pumping pipe, one end of the water pumping pipe passes through the bottom of the pump barrel and is connected to one side of the bottom end of the middle tank, the water pump end is connected with a drain pipe, and the drain pipe passes through the top of the pump barrel and is connected with an L tube.

[0013] Optionally, a smoke inlet hole is opened on the other side of the top of the through-hole tank, and a smoke inlet pipe for conveying smoke into the through-hole tank is arranged inside the smoke inlet hole.

[0014] Optionally, a smoke exhaust tank is provided at the top of the through tank, a connecting hole is opened on one side of the top of the smoke exhaust tank, and the interior of the connecting hole is through-connected with one end of the L-tube.

[0015] Optionally, one end of the L-tube passes through the interior of the connecting hole and is connected to an E-tube, and a plurality of nozzles for spraying are arranged at the bottom of the E-tube.

[0016] Optionally, an adjusting hole is opened on the surface of the L-tube, and a regulating valve for adjusting the flow rate is arranged inside the adjusting hole.

[0017] (III) Beneficial effects

[0018] The utility model provides a baking soda desulfurization device, which has the following beneficial effects:

[0019] 1. The baking soda desulfurization device, through the setting of the stirring component, can add baking soda and lime water together into the interior of the treatment tank during the desulfurization treatment of the smoke, and connect the driving motor to the external power supply, so that the driving motor drives the rotating rod and the stirring ring to rotate inside the treatment tank, thereby driving the baking soda and the lime water to be stirred together, accelerating the mutual fusion of the two, and improving the efficiency of removing sulfur dioxide in the smoke.

[0020] 2. The baking soda desulfurization device, through the setting of the spray component, during the desulfurization of smoke, the smoke enters the interior of the central tank along the smoke inlet pipe. At this time, the water pump is connected to an external power supply, so that the water pump draws the baking soda lime water that has been fused inside the treatment tank through the suction pipe, and enters the interior of the L tube from the drain pipe, and then sprays it from the nozzle at the bottom of the E-tube and sprinkles it on the smoke coming in from the smoke inlet pipe, so that the smoke is affected by the baking soda lime water, and the sulfur dioxide in the smoke is removed. Since the E-tube is in an E shape and a plurality of nozzles are arranged at the bottom, the inner diameter of the smoke exhaust tank is filled, thereby increasing the contact area between the spray and the smoke, and further improving the efficiency of removing sulfur dioxide in the smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the treatment tank of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the spray assembly of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the stirring component of the utility model.

[0025] In the figure: 1. treatment tank; 2. stirring assembly; 21. driving motor; 22. rotating rod; 23. stirring ring; 3. center-through tank; 4. fixing plate; 5. pump barrel; 6. spray assembly; 61. water pump; 62. water suction pipe; 63. drainage pipe; 64. L-tube; 7. smoke inlet pipe; 8. smoke exhaust tank; 9. E-tube; 10. nozzle; 11. regulating valve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a baking soda desulfurization device, comprising a processing tank 1, a stirring assembly 2 for improving mixing efficiency is arranged in the middle of the bottom of the processing tank 1, a middle through tank 3 is arranged on the top of the processing tank 1, a fixing plate 4 is fixedly connected to one side of the top of the middle through tank 3, a pump barrel 5 is fixedly connected to one side of the fixing plate 4, and a spray assembly 6 for increasing desulfurization efficiency is arranged inside the pump barrel 5.

[0028] See also Figure 1 and Figure 2A smoke inlet hole is provided on the other side of the top of the through tank 3, and a smoke inlet pipe 7 for conveying smoke into the through tank 3 is provided inside the smoke inlet hole. A smoke exhaust tank 8 is provided on the top of the through tank 3, and a connecting hole is provided on one side of the top of the smoke exhaust tank 8. The inside of the connecting hole is through-connected with one end of the L-tube 64. With the setting of the smoke inlet pipe 7, the smoke can enter the interior of the smoke exhaust tank 8 along the smoke inlet pipe 7, and after desulfurization treatment, it is discharged from the top of the smoke exhaust tank 8.

[0029] See also Figure 1 and Figure 2 One end of the L-tube 64 passes through the connecting hole and is connected to an E-tube 9. A plurality of nozzles 10 for spraying are arranged at the bottom of the E-tube 9. An adjusting hole is provided on the surface of the L-tube 64. A regulating valve 11 for adjusting the flow rate is arranged inside the adjusting hole. The setting of the regulating valve 11 can adjust the flow rate inside the L-tube 64, and then adjust the spraying pressure according to the amount of smoke.

[0030] Embodiment 1:

[0031] See also Figure 3 The spray assembly 6 includes a water pump 61 disposed inside the pump barrel 5. The water pumping end of the water pump 61 is connected with a water pumping pipe 62. One end of the water pumping pipe 62 penetrates the bottom of the pump barrel 5 and is connected to one side of the bottom of the middle tank 3. The drainage end of the water pump 61 is connected with a drainage pipe 63. The drainage pipe 63 penetrates the top of the pump barrel 5 and is connected with an L tube 64. During the desulfurization of smoke, the smoke enters the interior of the middle tank 3 along the smoke inlet pipe 7. At this time, the water pump 61 is connected to an external power supply so that the water pump 61 is connected to the water pumping pipe 63 through the water pumping pipe 64. The baking soda lime water which has been fused in the processing tank 1 is extracted and enters the interior of the L tube 64 from the drain pipe 63, and then sprayed out from the nozzle 10 at the bottom of the E-shaped tube 9 and sprinkled on the smoke coming in from the smoke inlet pipe 7, so that the smoke is affected by the baking soda lime water and the sulfur dioxide in the smoke is removed. Since the E-shaped tube 9 is in the shape of an E and a plurality of nozzles 10 are arranged at the bottom, the inner diameter of the smoke exhaust tank 8 is filled, thereby increasing the contact area between the spray and the smoke, and further improving the efficiency of removing the sulfur dioxide in the smoke.

[0032] Embodiment 2:

[0033] See also Figure 4The stirring assembly 2 includes a driving motor 21 arranged in the middle of the bottom of the treatment tank 1. The output end of the driving motor 21 passes through the bottom of the treatment tank 1 and is fixedly connected to a rotating rod 22. The surface of the rotating rod 22 is provided with a stirring ring 23 for mixing and stirring baking soda and lime water. During the desulfurization treatment of smoke, baking soda and lime water can be added to the inside of the treatment tank 1 together, and the driving motor 21 is connected to an external power supply, so that the driving motor 21 drives the rotating rod 22 and the stirring ring 23 to rotate inside the treatment tank 1, thereby driving the baking soda and lime water to be stirred together, accelerating the mutual fusion of the two, and improving the efficiency of removing sulfur dioxide in the smoke.

[0034] In the utility model, the working steps of the device are as follows:

[0035] Step 1: During the desulfurization treatment of smoke, baking soda and lime water can be added into the treatment tank 1 together, and the driving motor 21 is connected to an external power source, so that the driving motor 21 drives the rotating rod 22 and the stirring ring 23 to rotate inside the treatment tank 1, thereby driving the baking soda and lime water to stir together, accelerating the fusion of the two;

[0036] The second step: during the desulfurization of smoke, the smoke enters the interior of the central tank 3 along the smoke inlet pipe 7. At this time, the water pump 61 is connected to an external power supply, so that the water pump 61 extracts the baking soda lime water that has been fused inside the treatment tank 1 through the suction pipe 62, and enters the interior of the L tube 64 from the drain pipe 63, and then sprays out from the nozzle 10 at the bottom of the E-shaped tube 9, and sprinkles on the smoke coming in from the smoke inlet pipe 7, so that the smoke is affected by the baking soda lime water and the sulfur dioxide in the smoke is removed.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A baking soda desulfurization device, comprising a treatment tank (1), characterized in that: A stirring assembly (2) for improving mixing efficiency is arranged in the middle of the bottom of the treatment tank (1), a central through tank (3) is arranged on the top of the treatment tank (1), a fixing plate (4) is fixedly connected to one side of the top of the central through tank (3), a pump barrel (5) is fixedly connected to one side of the fixing plate (4), and a spray assembly (6) for increasing desulfurization efficiency is arranged inside the pump barrel (5).

2. A baking soda desulfurization device according to claim 1, characterized in that: The stirring assembly (2) comprises a driving motor (21) arranged in the middle of the bottom of the processing tank (1), the output end of the driving motor (21) passes through the bottom of the processing tank (1) and is fixedly connected to a rotating rod (22), and the surface of the rotating rod (22) is provided with a stirring ring (23) for mixing and stirring baking soda and lime water.

3. A baking soda desulfurization device according to claim 1, characterized in that: The spray assembly (6) comprises a water pump (61) arranged inside the pump barrel (5); the water pumping end of the water pump (61) is connected to a water pumping pipe (62); one end of the water pumping pipe (62) passes through the bottom of the pump barrel (5) and is connected to one side of the bottom end of the through tank (3); the water discharge end of the water pump (61) is connected to a water discharge pipe (63); the water discharge pipe (63) passes through the top of the pump barrel (5) and is connected to an L-tube (64).

4. A baking soda desulfurization device according to claim 1, characterized in that: A smoke inlet hole is provided on the other side of the top of the central through-hole tank (3), and a smoke inlet pipe (7) for conveying smoke into the central through-hole tank (3) is provided inside the smoke inlet hole.

5. A baking soda desulfurization device according to claim 1, characterized in that: A smoke exhaust tank (8) is arranged at the top of the through tank (3), and a connection hole is opened on one side of the top of the smoke exhaust tank (8), and the interior of the connection hole is connected to one end of the L tube (64).

6. A baking soda desulfurization device according to claim 3, characterized in that: One end of the L-tube (64) passes through the interior of the connection hole and is connected to an E-tube (9). The bottom of the E-tube (9) is provided with a plurality of spray heads (10) for spraying.

7. A baking soda desulfurization device according to claim 3, characterized in that: The surface of the L-tube (64) is provided with an adjustment hole, and a regulating valve (11) for adjusting the flow rate is arranged inside the adjustment hole.

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