Tail gas treatment and emission device in magnesium sulfate heptahydrate production

Abstract

The utility model discloses a tail gas treatment and emission device in magnesium sulfate heptahydrate production, and relates to the technical field of tail gas treatment. A tail gas treatment and emission device in magnesium sulfate heptahydrate production comprises a treatment barrel, the treatment barrel is divided into two cavities, gas tanks which are distributed at equal intervals in the circumferential direction are fixedly connected to the treatment barrel, flame guns which are distributed at equal intervals in the circumferential direction are fixedly connected to the treatment barrel, and the flame guns are fixedly connected to the treatment barrel. A gas conveying pipe is communicated between the flame gun and the adjacent gas tank, and one end of an outlet of the flame gun extends into a cavity in one side of the treatment barrel. Tail gas of the magnesium sulfate heptahydrate production equipment enters the left cavity of the treatment barrel after being discharged, the tail gas is burnt through the flame gun, so that combustible harmful substances in the tail gas are removed, the burnt tail gas is guided into the alkaline solution in the right cavity of the treatment barrel through the gas guide pipe, residual non-combustible pollutants in the tail gas are adsorbed through the alkaline solution, and the residual non-combustible pollutants in the tail gas are removed. And meanwhile, the tail gas can be cooled, and the cooled tail gas is discharged through a discharge pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment and discharge device in the production of magnesium sulfate heptahydrate. Background Art

[0002] The production process of magnesium sulfate heptahydrate may produce tail gas containing harmful substances such as sulfur dioxide, hydrogen sulfide, and sulfuric acid mist. These gases pose potential risks to the environment and human health, and therefore must be effectively treated before discharge. Currently, existing tail gas treatment devices generally use traditional wet scrubbing, which uses liquids to absorb pollutants in the tail gas. However, some combustible and harmful substances contained in the tail gas cannot be effectively treated, resulting in incomplete tail gas purification.

[0003] In order to solve the above problems, we propose a tail gas treatment and emission device for magnesium sulfate heptahydrate production. This tail gas treatment and emission device combines the advantages of combustion method and wet scrubbing. It first removes flammable and harmful substances in the tail gas by combustion, and then uses water absorption method to treat the remaining non-combustible pollutants, thereby achieving comprehensive purification of the tail gas. Utility Model Content

[0004] In order to overcome the shortcomings of traditional tail gas treatment devices that adopt a single treatment method and have insufficient tail gas purification, the utility model provides a tail gas treatment and discharge device for the production of magnesium sulfate heptahydrate. The tail gas treatment and discharge device combines the advantages of combustion method and wet scrubbing to achieve comprehensive purification of tail gas.

[0005] The utility model is implemented through the following technical approaches: an exhaust gas treatment and emission device in the production of magnesium sulfate heptahydrate includes a treatment cylinder, the treatment cylinder is divided into two cavities, the treatment cylinder is fixedly connected to gas tanks with circumferential equidistant distribution, the treatment cylinder is fixedly connected to flamethrowers with circumferential equidistant distribution, a gas transmission pipe is connected between the flamethrower and the adjacent gas tank, one end of the flamethrower outlet extends into the cavity on one side of the treatment cylinder, an air guide pipe is fixedly connected to the middle of the treatment cylinder, a side of the treatment cylinder away from the flamethrower is connected to an emission pipe, an acceleration component for accelerating the exhaust gas circulation speed is provided on the treatment cylinder, and a fixing component for docking the exhaust gas outlet is provided on the treatment cylinder.

[0006] As a preferred technical solution of the present invention, a water inlet communicating with the cavity on the other side is fixedly connected to the treatment cylinder.

[0007] As a preferred technical solution of the present invention, one side of the air guide pipe is funnel-shaped to facilitate the entry of exhaust gas, and the other side of the air guide pipe extends downward to the lower part of the treatment cylinder.

[0008] As an optimal technical solution of the present invention, the acceleration component includes a fixed frame, which is fixedly connected to the top of the processing cylinder, and the driving motor is fixedly connected to the fixed frame. The side of the processing cylinder close to the driving motor is rotatably connected to a rotating rod, and the rotating rod is fixedly connected to the output shaft of the driving motor. The rotating rod is fixedly connected to equidistantly distributed rotating blades.

[0009] As an optimal technical solution of the present invention, the fixing assembly includes circumferentially equidistant fixed plates, which are rotatably connected to the processing cylinder, and a torsion spring is connected between the fixed plates and the processing cylinder.

[0010] As a preferred technical solution of the present invention, the fixing splint is arc-shaped and is used to fit the exhaust gas outlet.

[0011] Compared with the prior art, the utility model has the following advantages: 1. After the exhaust gas of the magnesium sulfate heptahydrate production equipment is discharged, it enters the left cavity of the treatment tube, and the exhaust gas is burned by a flamethrower to remove the combustible and harmful substances in the exhaust gas. The exhaust gas after combustion is introduced into the alkaline solution in the right cavity of the treatment tube through the air guide pipe, and the alkaline solution adsorbs the remaining non-combustible pollutants in the exhaust gas. At the same time, the exhaust gas can also be cooled, and the cooled exhaust gas is then discharged through the exhaust pipe.

[0012] 2. The driving motor controls the rotation of the rotating blades to speed up the exhaust gas circulation, thereby increasing the exhaust gas treatment speed.

[0013] 3. Move the treatment cylinder to the tail gas outlet of the magnesium sulfate heptahydrate production equipment, then control the fixed splint to rotate inward and clamp it at the tail gas outlet of the magnesium sulfate heptahydrate production equipment, and then fix the device at the tail gas outlet of the magnesium sulfate heptahydrate production equipment to treat the tail gas discharged from the magnesium sulfate heptahydrate production equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a three-dimensional structural diagram of the processing cylinder, gas tank, flamethrower and other components of the utility model.

[0016] Figure 3 It is a three-dimensional structural diagram of the drive motor, rotating rod, rotating blade and other components of the utility model.

[0017] Figure 4 It is a partial three-dimensional structural diagram of the processing cylinder, fixed clamping plate and torsion spring of the utility model.

[0018] The reference numbers in the figure are: 1. treatment cylinder, 2. gas tank, 3. flamethrower, 4. gas guide tube, 5. discharge pipe, 6. drive motor, 61. fixed frame, 7. rotating rod, 8. rotating blade, 9. fixed splint, 10. torsion spring. DETAILED DESCRIPTION

[0019] The following further illustrates the technical solution with reference to specific embodiments. It should be noted that terms such as "up," "down," "left," and "right" used herein to indicate directions refer only to the positions of the structures depicted in the corresponding drawings. Component numbers, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connected" and "coupled" in this application, unless otherwise specified, include both direct and indirect connections (couplings).

[0020] Example 1: Tail gas treatment and discharge device in magnesium sulfate heptahydrate production, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, it includes a treatment tube 1, a gas tank 2, a flamethrower 3, an air guide pipe 4, an exhaust pipe 5, an acceleration component and a fixed component. The treatment tube 1 is divided into two left and right cavities. The lower side of the right part of the treatment tube 1 is connected to a water inlet. Four gas tanks 2 with equal distances around the circumference are fixedly connected to the treatment tube 1. Four flamethrowers 3 with equal distances around the circumference are fixedly connected to the left part of the treatment tube 1. A gas transmission pipe is connected between the flamethrower 3 and the adjacent gas tanks 2. One end of the flamethrower 3 outlet extends into the treatment tube 1. An air guide pipe 4 is fixedly connected to the middle part of the treatment tube 1. The left end of the air guide pipe 4 is funnel-shaped to facilitate the entry of exhaust gas. The right end of the air guide pipe 4 extends downward to the lower part of the treatment tube 1. The upper right part of the treatment tube 1 is connected to the exhaust pipe 5. The left part of the treatment tube 1 is provided with an acceleration component for accelerating the circulation speed of exhaust gas, and the left part of the treatment tube 1 is provided with a fixed component for docking the exhaust gas outlet.

[0021] When using the device, the staff fixes the treatment tube 1 at the exhaust gas outlet of the magnesium sulfate heptahydrate production equipment through a fixing component, so that the treatment tube 1 is connected to the exhaust gas outlet, and then the staff introduces the alkaline solution into the right cavity of the treatment tube 1 through the water inlet. The exhaust gas of the magnesium sulfate heptahydrate production equipment enters the left cavity of the treatment tube 1 after being discharged. Under the action of the acceleration component, the speed of exhaust gas circulation can be accelerated, and then the exhaust gas is burned by the flamethrower 3 to remove the combustible harmful substances in the exhaust gas. During combustion, the gas tank 2 can provide gas to the flamethrower 3 through the gas pipe. The exhaust gas after combustion is introduced into the alkaline solution in the right cavity of the treatment tube 1 through the air guide pipe 4. The alkaline solution adsorbs the remaining non-combustible pollutants in the exhaust gas, and the exhaust gas can also be cooled at the same time. The cooled exhaust gas is then discharged through the exhaust pipe 5.

[0022] Example 2: Based on Example 1, Figure 1 and Figure 3 As shown, the acceleration assembly includes a drive motor 6, a fixed frame 61, a rotating rod 7 and a rotating blade 8. The fixed frame 61 is fixedly connected to the left upper side of the processing cylinder 1, and the fixed frame 61 is fixedly connected to the drive motor 6. The left side of the processing cylinder 1 is rotatably connected to the rotating rod 7, and the rotating rod 7 is fixedly connected to the output shaft of the drive motor 6. Three rotating blades 8 equidistantly distributed around the circumference are fixedly connected to the rotating rod 7.

[0023] During the process of treating exhaust gas, the staff starts the drive motor 6. The output shaft of the drive motor 6 rotates to drive the rotating rod 7. The rotation of the rotating rod 7 drives the rotating blade 8 to rotate. The rotation of the rotating blade 8 can speed up the flow of exhaust gas, thereby increasing the exhaust gas treatment speed. When the exhaust gas treatment is completed, the staff controls the drive motor 6 to turn off.

[0024] like Figure 1 and Figure 4 As shown, the fixing assembly includes a fixing splint 9 and a torsion spring 10. The left part of the treatment cylinder 1 is rotatably connected with three fixing splints 9 equidistantly distributed around the circumference. The fixing splint 9 is arc-shaped and is used to fit the exhaust gas outlet. A torsion spring 10 is connected between the fixing splint 9 and the treatment cylinder 1.

[0025] When using the device, the staff controls the three fixed splints 9 to rotate outward and open, the torsion spring 10 is deformed, and then the staff moves the treatment tube 1 to the exhaust gas outlet of the magnesium sulfate heptahydrate production equipment, and then docks it with the exhaust gas outlet. After docking, the staff loosens the fixed splint 9, and under the action of the torsion spring 10 resetting, the fixed splint 9 rotates inward and clamps at the exhaust gas outlet of the magnesium sulfate heptahydrate production equipment, and then fixes the device at the exhaust gas outlet of the magnesium sulfate heptahydrate production equipment, so as to treat the exhaust gas discharged from the magnesium sulfate heptahydrate production equipment.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The tail gas treatment and discharge device in the production of magnesium sulfate heptahydrate is characterized by: The invention comprises a treatment tube (1), wherein the treatment tube (1) is divided into two cavities, the treatment tube (1) is fixedly connected to gas tanks (2) distributed equidistantly around the circumference, the treatment tube (1) is fixedly connected to flamethrowers (3) distributed equidistantly around the circumference, a gas transmission pipe is connected between the flamethrower (3) and the adjacent gas tank (2), one end of the flamethrower (3) outlet extends into the cavity on one side of the treatment tube (1), a gas guide pipe (4) is fixedly connected to the middle of the treatment tube (1), a side of the treatment tube (1) away from the flamethrower (3) is connected to an exhaust pipe (5), an acceleration component for accelerating the flow speed of exhaust gas is provided on the treatment tube (1), and a fixing component for docking the exhaust gas outlet is provided on the treatment tube (1).

2. The tail gas treatment and discharge device in the production of magnesium sulfate heptahydrate as claimed in claim 1, characterized in that: The treatment cylinder (1) is fixedly connected with a water inlet which is in communication with the cavity on the other side.

3. The tail gas treatment and discharge device in the production of magnesium sulfate heptahydrate as claimed in claim 2, characterized in that, One side of the air guide pipe (4) is funnel-shaped to facilitate the entry of tail gas, and the other side of the air guide pipe (4) extends downward to the lower part of the treatment cylinder (1).

4. The tail gas treatment and discharge device in the production of magnesium sulfate heptahydrate as claimed in claim 3, characterized in that: The acceleration component comprises a fixed frame (61), the fixed frame (61) is fixedly connected to the top of the processing cylinder (1), a driving motor (6) is fixedly connected to the fixed frame (61), a rotating rod (7) is rotatably connected to a side of the processing cylinder (1) close to the driving motor (6), the rotating rod (7) is fixedly connected to the output shaft of the driving motor (6), and rotating blades (8) distributed at equal intervals are fixedly connected to the rotating rod (7).

5. The tail gas treatment and discharge device in the production of magnesium sulfate heptahydrate as claimed in claim 4, characterized in that: The fixing assembly comprises fixing clamps (9) distributed equidistantly around the circumference. The fixing clamps (9) distributed equidistantly around the circumference are rotatably connected to the treatment cylinder (1). A torsion spring (10) is connected between the fixing clamps (9) and the treatment cylinder (1).

6. The tail gas treatment and discharge device in the production of magnesium sulfate heptahydrate as claimed in claim 5, characterized in that: The fixing clamping plate (9) is arc-shaped and is used to fit the exhaust gas outlet.

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