Metal smelting secondary zinc oxide desulfurization device

Abstract

The utility model relates to the technical field of desulfurization devices, and discloses a metal smelting secondary zinc oxide desulfurization device, which comprises an equipment main body, a cleaning mechanism and a stirring mechanism, the inner wall of the top end of the equipment main body is movably sleeved with the side surface of the cleaning mechanism, and the bottom end of the stirring mechanism is movably sleeved with the inner wall of the bottom end of the equipment main body. The equipment main body comprises a tank body, the top end of the tank body is fixedly connected with an exhaust pipe, the bottom end of the tank body is fixedly connected with supporting legs, the side surface of the tank body is fixedly connected with a liquid discharge pipe, and the side surface of the tank body is fixedly connected with a liquid inlet pipe; tail gas produced by metal smelting is fed into the hollow shaft through the gas inlet pipe and is sprayed out from the gas spraying hole, so that the stirring paddle is pushed to rotate, the stirring paddle stirs a secondary zinc oxide suspension, and the secondary zinc oxide suspension and the sprayed tail gas are uniformly mixed to react for desulfurization; and desulfurized tail gas is discharged from the exhaust pipe after being filtered by the filter plate, so that the desulfurization quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization devices, and more specifically to a metal smelting zinc oxide desulfurization device. Background Art

[0002] Metal smelting is the process of changing metal from a combined state to a free state. The commonly used method is to use reducing agents such as carbon, carbon monoxide, and hydrogen to react with metal oxides at high temperatures to obtain metal elements. Metal ores are used as raw materials for metal smelting. There are a large number of sulfides in metal ores. During metal smelting, a large amount of sulfur oxides are generated and mixed into the exhaust gas. In order to avoid sulfur oxides being discharged into the air and polluting the environment, a desulfurization device is required to treat the sulfur oxides in the exhaust gas. Zinc oxide is a commonly used desulfurizer. The ZnO-containing powder is added with water or the washing liquid of the desulfurization slag returned from the process to prepare a suspension, which reacts with SO2 in the flue gas in the absorption equipment. The SO2 in the flue gas is mainly removed in the form of zinc sulfite (also zinc bisulfite and zinc sulfate). The by-product zinc sulfite after absorption is oxidized by air or thermally decomposed or acidically decomposed to finally produce products such as zinc sulfate, electrolytic zinc and sulfuric acid (or liquid sulfur dioxide).

[0003] Deficiencies of existing technology: Existing zinc oxide desulfurization devices mostly send the tail gas generated by metal smelting into a suspension made of ZnO powder. However, during use, the ZnO powder in the suspension is prone to precipitation, and the gas and the suspension are not mixed evenly, affecting the desulfurization effect. At the same time, during use, a filter is used to filter the treated tail gas to remove solid debris. As the solid debris adheres to the filter, it is easy to cause the filter to be blocked. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a metal smelting zinc oxide desulfurization device to solve the problems existing in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal smelting zinc oxide desulfurization device, comprising an equipment main body, and also comprising: a cleaning mechanism and a stirring mechanism, the top inner wall of the equipment main body is movably connected to the side of the cleaning mechanism, and the bottom end of the stirring mechanism is movably connected to the bottom inner wall of the equipment main body, the equipment main body comprises a tank body, the top of the tank body is fixedly connected to an exhaust pipe, the bottom end of the tank body is fixedly connected to a support leg, the side of the tank body is fixedly connected to a drain pipe, and the side of the tank body is fixedly connected to a liquid inlet pipe, the stirring mechanism comprises a hollow shaft, the bottom end of the hollow shaft is movably connected to the bottom end of the tank body, the side of the hollow shaft is fixedly connected to a stirring paddle, the bottom end of the hollow shaft is movably connected to a connector, the bottom end of the connector is fixedly connected to an air inlet pipe, and the side inner wall of the tank body is fixedly connected to a filter plate.

[0006] Furthermore, the hollow shaft and the stirring paddle are both hollow structures, and a jet hole is provided on the side of the stirring paddle.

[0007] Furthermore, an observation tube is fixedly connected to the side of the hollow shaft, the observation tube is made of a transparent material, and a scale is provided on the side of the observation tube.

[0008] Furthermore, a concentration detection device is fixedly connected to the inner wall of the bottom end of the tank body, and an exhaust gas detection device is fixedly connected to the side of the exhaust pipe.

[0009] Furthermore, the cleaning mechanism includes a mounting shaft, the bottom end of the mounting shaft is movably connected to the top end of the filter plate, the top end of the mounting shaft is fixedly connected to a fan blade, the bottom end of the mounting shaft is fixedly connected to a mounting plate, the top end of the mounting plate is movably connected to a brush, and the top end of the brush is movably connected to the bottom end of the filter plate.

[0010] Furthermore, a mounting groove is provided at the top of the mounting plate, a pressure spring is fixedly connected to the bottom end of the mounting groove, and the top end of the pressure spring is fixedly connected to the bottom end of the brush.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model sends the exhaust gas produced by metal smelting into the interior of the hollow shaft through the air inlet pipe and sprays it out from the jet hole, thereby driving the stirring paddle to rotate, so that the stirring paddle stirs the secondary zinc oxide suspension, so that the secondary zinc oxide suspension and the sprayed exhaust gas are evenly mixed to react and desulfurize. The exhaust gas after desulfurization is filtered by the filter plate and then discharged from the exhaust pipe, which is beneficial to improve the quality of desulfurization.

[0013] 2. The utility model drives the fan blades to rotate the installation shaft through the exhaust gas passing through the filter plate, so that the installation plate drives the brush to rotate, so that the brush cleans the surface of the filter plate and removes the debris attached to the surface of the filter plate, which is helpful to avoid equipment blockage and ensure the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cleaning mechanism structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the fan blade of the utility model;

[0018] Figure 5 This is a schematic diagram of the stirring mechanism structure of the utility model;

[0019] Figure 6 For the utility model Figure 5 Schematic diagram of the structure at A.

[0020] The accompanying drawings are marked as follows: 1. Equipment body; 101. Tank body; 102. Filter plate; 103. Exhaust gas detection device; 104. Exhaust pipe; 105. Liquid inlet pipe; 106. Inlet pipe; 107. Observation tube; 108. Liquid discharge pipe; 109. Support leg; 2. Cleaning mechanism; 201. Fan blade; 202. Mounting plate; 203. Mounting shaft; 204. Brush; 205. Mounting groove; 206. Pressure spring; 3. Stirring mechanism; 301. Hollow shaft; 302. Stirring paddle; 303. Connector; 304. Jet hole. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The metal smelting zinc oxide desulfurization device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figures 1 to 6 The utility model provides a metal smelting secondary zinc oxide desulfurization device, including an equipment body 1, and also including: a cleaning mechanism 2 and a stirring mechanism 3. The top inner wall of the equipment body 1 is movably connected to the side of the cleaning mechanism 2, and the bottom end of the stirring mechanism 3 is movably connected to the bottom inner wall of the equipment body 1. The equipment body 1 includes a tank body 101, the top of the tank body 101 is fixedly connected with an exhaust pipe 104, the bottom end of the tank body 101 is fixedly connected with a support leg 109, the side of the tank body 101 is fixedly connected with a drain pipe 108, and the side of the tank body 101 is fixedly connected with a liquid inlet pipe 105. The stirring mechanism 3 includes a hollow shaft 301, the bottom end of the hollow shaft 301 is movably connected to the bottom end of the tank body 101, and the hollow shaft 30 1 is fixedly connected with a stirring paddle 302, the bottom end of the hollow shaft 301 is movably sleeved with a connector 303, the bottom end of the connector 303 is fixedly connected with an air inlet pipe 106, the inner wall of the side of the tank body 101 is fixedly connected with a filter plate 102, the side control valve of the liquid inlet pipe 105 is opened to send the secondary zinc oxide suspension into the tank body 101, the exhaust gas produced by metal smelting is sent into the hollow shaft 301 through the air inlet pipe 106, and is ejected from the jet hole 304, thereby driving the stirring paddle 302 to rotate, so that the stirring paddle 302 stirs the secondary zinc oxide suspension, so that the secondary zinc oxide suspension and the ejected exhaust gas are evenly mixed to react and desulfurize, and the desulfurized exhaust gas is filtered by the filter plate 102 and discharged from the exhaust pipe 104.

[0023] The hollow shaft 301 and the stirring paddle 302 are both hollow structures. A jet hole 304 is provided on the side of the stirring paddle 302. The jet hole 304 is provided on the side of the stirring paddle 302. The exhaust gas is ejected from the jet hole 304 to generate a reaction force, which pushes the stirring paddle 302 so that the hollow shaft 301 drives the stirring paddle 302 to rotate.

[0024] The side of the hollow shaft 301 is fixedly connected with an observation tube 107 . The observation tube 107 is made of transparent material. A scale is provided on the side of the observation tube 107 . The amount of zinc oxide suspension in the tank body 101 can be observed through the observation tube 107 .

[0025] Among them, a concentration detection device is fixedly connected to the inner wall of the bottom end of the tank body 101, and an exhaust gas detection device 103 is fixedly connected to the side of the exhaust pipe 104. The concentration detection device at the bottom end of the tank body 101 detects the amount of secondary zinc oxide in the suspension in real time, and the exhaust gas detection device 103 detects the amount of sulfur oxides in the exhaust gas after treatment in real time, and replaces the secondary zinc oxide suspension in the tank body 101 according to the detection result, that is, the side control valve of the drain pipe 108 is opened to discharge the secondary zinc oxide suspension in the tank body 101, and new secondary zinc oxide suspension is injected through the liquid inlet pipe 105.

[0026] Among them, the cleaning mechanism 2 includes a mounting shaft 203, the bottom end of the mounting shaft 203 is movably connected to the top end of the filter plate 102, the top end of the mounting shaft 203 is fixedly connected to a fan blade 201, the bottom end of the mounting shaft 203 is fixedly connected to a mounting plate 202, the top end of the mounting plate 202 is movably connected to a brush 204, the top end of the brush 204 is movably connected to the bottom end of the filter plate 102, the exhaust gas passes through the filter plate 102 to push the fan blade 201 to drive the mounting shaft 203 to rotate, so that the mounting plate 202 drives the brush 204 to rotate, so that the brush 204 cleans the surface of the filter plate 102 and removes debris attached to the surface of the filter plate 102.

[0027] Among them, a mounting groove 205 is opened at the top of the mounting plate 202, and a pressure spring 206 is fixedly connected to the bottom end of the mounting groove 205. The top end of the pressure spring 206 is fixedly connected to the bottom end of the brush 204. The pressure spring 206 pushes the brush 204 upward so that the top end of the brush 204 is always close to the bottom end of the filter plate 102.

[0028] The working principle of the utility model is as follows: the side control valve of the liquid inlet pipe 105 is opened to send the secondary zinc oxide suspension into the tank body 101, and the stock of the secondary zinc oxide suspension in the tank body 101 is determined through the observation tube 107. The tail gas produced by metal smelting is sent into the hollow shaft 301 through the air inlet pipe 106, and is ejected from the jet hole 304. Under the action of the reaction force, the stirring paddle 302 is driven to rotate, so that the stirring paddle 302 stirs the secondary zinc oxide suspension, so that the secondary zinc oxide suspension and the ejected tail gas are mixed evenly to react and desulfurize. The desulfurized tail gas is filtered by the filter plate 102 and discharged from the exhaust pipe 104. The tail gas passes through the filter plate 102 and pushes the fan blade 201 to drive the installation shaft 203 The rotation causes the mounting plate 202 to drive the brush 204 to rotate, and the pressure spring 206 pushes the brush 204 so that the top of the brush 204 is always in close contact with the bottom of the filter plate 102, so that the brush 204 cleans the surface of the filter plate 102 and removes debris attached to the surface of the filter plate 102. The concentration detection device at the bottom of the tank body 101 detects the amount of secondary zinc oxide in the suspension in real time, and the exhaust gas detection device 103 detects the amount of sulfur oxides in the exhaust gas after treatment in real time, and replaces the secondary zinc oxide suspension in the tank body 101 according to the detection result, that is, the side control valve of the drain pipe 108 is opened to discharge the secondary zinc oxide suspension in the tank body 101, and new secondary zinc oxide suspension is injected through the inlet pipe 105.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal smelting zinc oxide desulfurization device, comprising an equipment body (1), characterized in that: Also includes: The cleaning mechanism (2) and the stirring mechanism (3) are provided, the inner wall of the top end of the equipment body (1) is movably connected to the side of the cleaning mechanism (2), the bottom end of the stirring mechanism (3) is movably connected to the inner wall of the bottom end of the equipment body (1), the equipment body (1) comprises a tank body (101), the top end of the tank body (101) is fixedly connected to an exhaust pipe (104), the bottom end of the tank body (101) is fixedly connected to a support leg (109), the side of the tank body (101) is fixedly connected to a drain pipe (108), and the tank body ( The side of the tank body (101) is fixedly connected to a liquid inlet pipe (105), the stirring mechanism (3) comprises a hollow shaft (301), the bottom end of the hollow shaft (301) is movably sleeved with the bottom end of the tank body (101), the side of the hollow shaft (301) is fixedly connected to a stirring paddle (302), the bottom end of the hollow shaft (301) is movably sleeved with a connecting head (303), the bottom end of the connecting head (303) is fixedly connected to an air inlet pipe (106), and the inner wall of the side of the tank body (101) is fixedly connected to a filter plate (102).

2. A metal smelting zinc oxide desulfurization device according to claim 1, characterized in that: The hollow shaft (301) and the stirring paddle (302) are both hollow structures, and a jet hole (304) is provided on the side of the stirring paddle (302).

3. A metal smelting zinc oxide desulfurization device according to claim 1, characterized in that: An observation tube (107) is fixedly connected to the side of the hollow shaft (301); the observation tube (107) is made of a transparent material, and a scale is provided on the side of the observation tube (107).

4. A metal smelting zinc oxide desulfurization device according to claim 1, characterized in that: A concentration detection device is fixedly connected to the inner wall of the bottom end of the tank body (101), and an exhaust gas detection device (103) is fixedly connected to the side of the exhaust pipe (104).

5. A metal smelting zinc oxide desulfurization device according to claim 1, characterized in that: The cleaning mechanism (2) comprises a mounting shaft (203), the bottom end of the mounting shaft (203) being movably connected to the top end of the filter plate (102), the top end of the mounting shaft (203) being fixedly connected to a fan blade (201), the bottom end of the mounting shaft (203) being fixedly connected to a mounting plate (202), the top end of the mounting plate (202) being movably connected to a brush (204), and the top end of the brush (204) being movably connected to the bottom end of the filter plate (102).

6. A metal smelting zinc oxide desulfurization device according to claim 5, characterized in that: The top of the mounting plate (202) is provided with a mounting groove (205), the bottom of the mounting groove (205) is fixedly connected with a pressure spring (206), and the top of the pressure spring (206) is fixedly connected to the bottom of the brush (204).

Images