Dry desulfurization device suitable for steel flue gas

Abstract

The utility model discloses a dry desulfurization device suitable for steel flue gas. Comprising a stirring mechanism, a desulfurization mechanism is arranged on the surface of the stirring mechanism, a control mechanism is arranged in the desulfurization mechanism, an exhaust mechanism is arranged on the surface of the desulfurization mechanism, the stirring mechanism is located on the left side of the desulfurization mechanism, and the exhaust mechanism is located on the right side of the desulfurization mechanism; according to the dry desulfurization device suitable for the steel flue gas, the motor and the fan are arranged, air is blown into the desulfurization cabin, then an absorbent is put into the stirring shell from the feeding port, the absorbent is stirred, ground and mixed under rotation of the spiral blades, the stirring efficiency is improved, and the desulfurization efficiency is improved. And under the acceleration of air pressure, the device accelerates to move towards the desulfurization cabin, is convenient and rapid, and is convenient for workers to operate.

Description

Technical Field

[0001] This utility model relates to the field of dry desulfurization technology, specifically a dry desulfurization device suitable for steel flue gas. Background Technology

[0002] With industrial development, air pollution from industrial processes has become a pressing issue. Solving air pollution primarily involves removing sulfur dioxide and dust from the exhaust gas. Flue gas desulfurization (FGD) technologies can be classified into three types based on the state of the absorbent and desulfurization products: wet FGD, semi-dry FGD, and dry FGD. While wet FGD technology is relatively mature and has high desulfurization efficiency, it can lead to secondary environmental pollution problems such as wastewater treatment and chimney whitening during operation, resulting in higher investment and operating costs for the flue gas treatment process. In contrast, dry FGD technology has a simpler process, lower cost, and does not involve water in the treatment process, avoiding the aforementioned environmental problems. Therefore, it has become the mainstream desulfurization technology.

[0003] Most dry desulfurization devices currently available on the market for steel flue gas require workers to grind the absorbent separately before injecting it into the desulfurization chamber along with air. This is time-consuming and labor-intensive, and most require multiple devices to be used in combination, which is inconvenient to install. Therefore, we have proposed a dry desulfurization device suitable for steel flue gas. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a dry desulfurization device suitable for steel flue gas, including a stirring mechanism, a desulfurization mechanism on the surface of the stirring mechanism, a control mechanism inside the desulfurization mechanism, and an exhaust mechanism on the surface of the desulfurization mechanism. The stirring mechanism is located on the left side of the desulfurization mechanism, and the exhaust mechanism is located on the right side of the desulfurization mechanism. The stirring mechanism includes a stirring shell, an inlet at the top of the stirring shell, a fan fixedly connected to the left end of the stirring shell, fan blades rotatably connected inside the fan, a motor fixedly connected to the surface of the stirring shell, a rotating shaft rotatably connected to the right end of the motor, a screw blade fixedly connected to the surface of the rotating shaft, an air inlet groove on the surface of the stirring shell, and a lifting ring fixedly connected to the top of the stirring shell.

[0005] The above technical solutions improve the mixing mechanism.

[0006] As a further improvement to the above scheme, the motor is located between the fan and the mixing shell, the rotating shaft is rotatably connected to the mixing shell, the screw blade is located inside the mixing shell, the feed inlet is located above the screw blade, the air inlet groove is located above the motor, and the lifting ring is located to the right of the feed inlet.

[0007] The above technical solution involves setting up spiral blades to stir and grind the absorbent.

[0008] As a further improvement to the above scheme, the desulfurization mechanism includes a main shell, a discharge port at the bottom of the main shell, a valve fixedly connected to the surface of the discharge port, a flange fixedly connected to the bottom of the discharge port, a flue gas inlet fixedly connected to the left side of the main shell, and a desulfurization chamber inside the main shell.

[0009] The above technical solutions will improve the desulfurization mechanism.

[0010] As a further improvement to the above scheme, the valve is located above the flange, the flue gas inlet extends through the surface of the main shell to the interior of the desulfurization chamber, the flue gas inlet is located below the stirring shell, and the right end of the stirring shell extends through the inner wall of the main shell to the interior of the desulfurization chamber.

[0011] The above technical solution allows for the convenient discharge of by-products through the setting of an outlet.

[0012] As a further improvement to the above solution, the control mechanism includes a control module, with a display screen fixedly connected to the front end of the control module and a heating module fixedly connected to the side of the control module.

[0013] The control mechanism is improved through the above technical solutions.

[0014] As a further improvement to the above solution, the control module is located inside the main body shell, the heating module is located inside the main body shell, and the display screen extends through the inner wall of the main body shell to the surface of the main body shell.

[0015] The above technical solution facilitates the operation and control of the device by setting up a display screen and a control module.

[0016] As a further improvement to the above solution, the exhaust mechanism includes an exhaust pipe, a filter plate is fixedly connected inside the exhaust pipe, and a blower is fixedly connected inside the exhaust pipe.

[0017] The above technical solutions improve the exhaust mechanism.

[0018] As a further improvement to the above scheme, the exhaust pipe extends through the right end of the main shell into the interior of the desulfurization chamber, and the air compressor is located on the right side of the filter plate.

[0019] Because the above technical solution uses dry desulfurization, there is no need to set up a filtration structure for dehumidification or other purposes.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention uses a motor and a fan to blow air into the desulfurization chamber. The absorbent is then placed into the mixing shell from the inlet. The absorbent is stirred, ground, and mixed by the rotation of the screw blades, and moves towards the desulfurization chamber at an accelerated speed under air pressure. This is convenient, quick, and easy for operators to use.

[0022] This utility model features an integrated device that simplifies installation by connecting the exhaust pipe to the flue gas inlet, the discharge port to the by-product silo, and the exhaust pipe to the bottom of the chimney. The steel flue gas is then passed through the discharge port, and the lifting ring is simultaneously hoisted to support the mixing shell, making installation convenient. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the back structure of the main body of this utility model;

[0025] Figure 3 This is a schematic cross-sectional view of the control mechanism of this utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of the stirring mechanism of this utility model.

[0027] In the diagram: 1. Mixing mechanism; 101. Mixing shell; 102. Feed inlet; 103. Fan; 104. Fan blade; 105. Motor; 106. Shaft; 107. Spiral blade; 108. Air inlet slot; 109. Lifting ring; 2. Desulfurization mechanism; 201. Main shell; 202. Discharge port; 203. Valve; 204. Flue gas inlet; 205. Flange; 206. Desulfurization chamber; 3. Control mechanism; 301. Control module; 302. Display screen; 303. Heating module; 4. Exhaust mechanism; 401. Exhaust pipe; 402. Filter plate; 403. Air compressor. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0029] Please combine Figure 1-4This embodiment of a dry desulfurization device for steel flue gas includes a stirring mechanism 1, a desulfurization mechanism 2 on the surface of the stirring mechanism 1, a control mechanism 3 inside the desulfurization mechanism 2, and an exhaust mechanism 4 on the surface of the desulfurization mechanism 2. The stirring mechanism 1 is located on the left side of the desulfurization mechanism 2, and the exhaust mechanism 4 is located on the right side of the desulfurization mechanism 2. The stirring mechanism 1 includes a stirring shell 101, an inlet 102 on the top of the stirring shell 101, a fan 103 fixedly connected to the left end of the stirring shell 101, a fan blade 104 rotatably connected inside the fan 103, a motor 105 fixedly connected to the surface of the stirring shell 101, a rotating shaft 106 rotatably connected to the right end of the motor 105, a screw blade 107 fixedly connected to the surface of the rotating shaft 106, an air inlet groove 108 on the surface of the stirring shell 101, and a lifting ring 109 fixedly connected to the top of the stirring shell 101.

[0030] The motor 105 is located between the fan 103 and the mixing shell 101, and the rotating shaft 106 is rotatably connected to the mixing shell 101. The screw blade 107 is located inside the mixing shell 101, the feed inlet 102 is located above the screw blade 107, the air inlet 108 is located above the motor 105, and the lifting ring 109 is located to the right of the feed inlet 102. The motor 105 and the fan 103 are set up to blow air into the desulfurization chamber 206. Then, the absorbent is put into the mixing shell 101 from the feed inlet 102. The absorbent is stirred, ground and mixed under the rotation of the screw blade 107, and accelerated towards the desulfurization chamber 206 under the acceleration of air pressure. This is convenient, quick and easy for the staff to operate.

[0031] The desulfurization unit 2 includes a main shell 201, with a discharge port 202 at the bottom of the main shell 201. A valve 203 is fixedly connected to the surface of the discharge port 202, and a flange 205 is fixedly connected to the bottom of the discharge port 202. A flue gas inlet 204 is fixedly connected to the left side of the main shell 201. A desulfurization chamber 206 is opened inside the main shell 201. The device is an integrated unit. During installation, it is only necessary to connect the exhaust pipe to the flue gas inlet 204, the discharge port 202 to the by-product silo, and the exhaust pipe 401 to the bottom of the chimney. The steel flue gas is then passed through the discharge port 202, and the lifting ring 109 is hung up to support the mixing shell 101, which is convenient for installation.

[0032] Valve 203 is located above flange 205. Flue gas inlet 204 extends through the surface of main shell 201 to the interior of desulfurization chamber 206. Flue gas inlet 204 is located below stirring shell 101. The right end of stirring shell 101 extends through the inner wall of main shell 201 to the interior of desulfurization chamber 206.

[0033] The control mechanism 3 includes a control module 301, a display screen 302 is fixedly connected to the front end of the control module 301, and a heating module 303 is fixedly connected to the side of the control module 301.

[0034] The control module 301 is located inside the main body shell 201, the heating module 303 is located inside the main body shell 201, and the display screen 302 extends through the inner wall of the main body shell 201 to the surface of the main body shell 201.

[0035] The exhaust mechanism 4 includes an exhaust pipe 401, a filter plate 402 is fixedly connected inside the exhaust pipe 401, and a blower 403 is fixedly connected inside the exhaust pipe 401.

[0036] The exhaust pipe 401 extends through the right end of the main body shell 201 into the interior of the desulfurization chamber 206, and the air compressor 403 is located on the right side of the filter plate 402.

[0037] The implementation principle of a dry desulfurization device for steel flue gas in this embodiment is as follows: First, the exhaust pipe is connected to the flue gas inlet 204, the discharge port 202 is connected to the by-product bin, and the exhaust pipe 401 is connected to the bottom of the chimney. The steel flue gas is then passed through the discharge port 202. At the same time, the lifting ring 109 is hoisted to support the stirring shell 101. Then, the display screen 302 is operated, and the heating module 303 is started through the control module 301 to heat the flue gas inside the desulfurization chamber 206, causing the sulfides to react with oxygen to produce sulfur dioxide. Then, the motor 105 and fan 103 are started through the control module 301, driving the fan blades 104 and the screw blades 105. Rotating the screw 107 blows air into the desulfurization chamber 206. Simultaneously, workers insert the absorbent into the mixing shell 101 through the inlet 102. The absorbent is then agitated and ground by the rotation of the screw 107, and accelerated towards the desulfurization chamber 206 by the air pressure. Once inside the chamber, the absorbent reacts with sulfur dioxide to produce easily removable compounds. After a period of desulfurization, the air compressor 403 is activated to draw the desulfurized gas out of the chamber 206 and finally discharge it through the chimney. As the gas passes through the filter plate 402, all particulate matter is filtered out, preventing secondary pollution of the air environment.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A dry desulfurization device suitable for steel flue gas, comprising a stirring mechanism (1), characterized in that: The surface of the stirring mechanism (1) is provided with a desulfurization mechanism (2), the inside of the desulfurization mechanism (2) is provided with a control mechanism (3), the surface of the desulfurization mechanism (2) is provided with an exhaust mechanism (4), the stirring mechanism (1) is located on the left side of the desulfurization mechanism (2), the exhaust mechanism (4) is located on the right side of the desulfurization mechanism (2), the stirring mechanism (1) includes a stirring shell (101), the top of the stirring shell (101) is provided with a feed inlet (102), the left end of the stirring shell (101) is fixedly connected with a fan (103), the inside of the fan (103) is rotatably connected with a fan blade (104), the surface of the stirring shell (101) is fixedly connected with a motor (105), the right end of the motor (105) is rotatably connected with a rotating shaft (106), the surface of the rotating shaft (106) is fixedly connected with a screw blade (107), the surface of the stirring shell (101) is provided with an air inlet groove (108), and the top of the stirring shell (101) is fixedly connected with a lifting ring (109).

2. The dry desulfurization device for steel flue gas according to claim 1, characterized in that: The motor (105) is located between the fan (103) and the stirring shell (101), the rotating shaft (106) is rotatably connected to the stirring shell (101), the screw blade (107) is located inside the stirring shell (101), the feed inlet (102) is located above the screw blade (107), the air inlet groove (108) is located above the motor (105), and the lifting ring (109) is located to the right of the feed inlet (102).

3. A dry desulfurization device suitable for steel flue gas according to claim 1, characterized in that: The desulfurization mechanism (2) includes a main shell (201), a discharge port (202) is provided at the bottom of the main shell (201), a valve (203) is fixedly connected to the surface of the discharge port (202), a flange (205) is fixedly connected to the bottom of the discharge port (202), a flue gas inlet (204) is fixedly connected to the left side of the main shell (201), and a desulfurization chamber (206) is provided inside the main shell (201).

4. A dry desulfurization device suitable for steel flue gas according to claim 3, characterized in that: The valve (203) is located above the flange (205), the flue gas inlet (204) extends through the surface of the main shell (201) to the interior of the desulfurization chamber (206), the flue gas inlet (204) is located below the stirring shell (101), and the right end of the stirring shell (101) extends through the inner wall of the main shell (201) to the interior of the desulfurization chamber (206).

5. A dry desulfurization device suitable for steel flue gas according to claim 1, characterized in that: The control mechanism (3) includes a control module (301), a display screen (302) is fixedly connected to the front end of the control module (301), and a heating module (303) is fixedly connected to the side of the control module (301).

6. A dry desulfurization device suitable for steel flue gas according to claim 5, characterized in that: The control module (301) is located inside the main body shell (201), the heating module (303) is located inside the main body shell (201), and the display screen (302) extends through the inner wall of the main body shell (201) to the surface of the main body shell (201).

7. A dry desulfurization device suitable for steel flue gas according to claim 1, characterized in that: The exhaust mechanism (4) includes an exhaust pipe (401), a filter plate (402) is fixedly connected inside the exhaust pipe (401), and a wind compressor (403) is fixedly connected inside the exhaust pipe (401).

8. A dry desulfurization device for steel flue gas according to claim 7, characterized in that: The exhaust pipe (401) extends through the right end of the main shell (201) into the interior of the desulfurization chamber (206), and the air compressor (403) is located on the right side of the filter plate (402).

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