阅读说明：本技术 一种烧结机烟气选择性脱硫脱硝的装置 (Selective desulfurization and denitrification device for flue gas of sintering machine ) 是由 徐筠 于 2021-04-20 设计创作，主要内容包括：本发明公开了一种烧结机烟气选择性脱硫脱硝的装置,包括工作台、支撑腿、抽气泵二、放置板、重度净化装置、轻度净化装置、抽气泵一、竖直板、风箱一和风箱二,所述支撑腿对称设于工作台下,所述放置板设于支撑腿之间,所述重度净化装置设于放置板顶部,所述竖直板设于工作台顶部,所述风箱一设于工作台顶部,所述风箱二设于工作台顶部,所述抽气泵一设于竖直板侧面上且连接于风箱一,所述轻度净化装置设于工作台顶部,所述抽气泵二设于放置板顶部且连接于重度净化装置和风箱二上。本发明属于烟气净化技术领域,具体是指一种根据需要处理的烟气浓度,来选择风箱一和风箱二,避免造成资源浪费的烧结机烟气选择性脱硫脱硝的装置。(The invention discloses a device for selective desulfurization and denitrification of flue gas of a sintering machine, which comprises a workbench, supporting legs, a second air pump, a placing plate, a severe purification device, a mild purification device, a first air pump, a vertical plate, a first air box and a second air box, wherein the supporting legs are symmetrically arranged below the workbench, the placing plate is arranged between the supporting legs, the severe purification device is arranged at the top of the placing plate, the vertical plate is arranged at the top of the workbench, the first air box is arranged at the top of the workbench, the second air box is arranged at the top of the workbench, the first air pump is arranged on the side surface of the vertical plate and connected with the first air box, the mild purification device is arranged at the top of the workbench, and the second air pump is arranged at the top of the placing plate and connected with the severe purification device and the second air box. The invention belongs to the technical field of flue gas purification, and particularly relates to a selective desulfurization and denitrification device for flue gas of a sintering machine, which selects a first air box and a second air box according to the concentration of the flue gas to be treated, and avoids resource waste.)

1. The utility model provides a device of selective SOx/NOx control of sintering machine flue gas which characterized in that: the air extracting device comprises a workbench, supporting legs, an air extracting pump II, a placing plate, a heavy purification device, a light purification device, an air extracting pump I, a vertical plate, an air box I and an air box II, wherein the supporting legs are symmetrically arranged below the workbench, the placing plate is arranged between the supporting legs, the heavy purification device is arranged at the top of the placing plate, the vertical plate is arranged at the top of the workbench, the air box I is arranged at the top of the workbench, the air box II is arranged at the top of the workbench, the air extracting pump I is arranged on the side surface of the vertical plate and connected to the air box I, the light purification device is arranged at the top of the workbench and connected to the air extracting pump I, and the air extracting pump II is arranged at the top of the placing plate and connected to the heavy purification device and the air box II; the heavy purification device comprises a movable plate, a filter bin, a filter plate, a purification bin, a drain pipe, a water spray nozzle, a water pump, a spray pipe, a connecting ring, a treatment liquid placing bin and an exhaust port, wherein the filter bin is arranged on the top of the placing table and connected to the air pump II, the movable plate can move to penetrate through the top of the filter bin, the filter plate is arranged below the movable plate and arranged in the filter bin, the purification bin is arranged on the side surface of the filter bin, the upper surface and the lower surface of the inner wall of the purification bin are both arranged in a central concave structure, the drain pipe is arranged at the center of the bottom wall of the purification bin, the treatment liquid placing bin is arranged at the top of the placing table, the top of the water pump placing table is connected to the treatment liquid placing bin, the exhaust port penetrates through the center of the top of the filter bin and is arranged at the top of the exhaust pipe, the water spray nozzle is symmetrically arranged below the upper wall in the purification bin and close to the center of the inner upper wall, and the spray pipe is connected to the top of the water spray nozzle, the linking ring is arranged at the top of the exhaust port and connected above the spray pipe, and the linking ring is connected to the top of the water pump.

2. The device for selectively desulfurizing and denitrating the flue gas of the sintering machine according to claim 1, which is characterized in that: the top of the moving plate is provided with a handle.

3. The device for selectively desulfurizing and denitrating the flue gas of the sintering machine according to claim 2, characterized in that: the connecting ring is of an annular structure, a fixing rod is arranged at the top of the connecting ring, and the fixing rod is arranged below the workbench.

4. The device for selectively desulfurizing and denitrating the flue gas of the sintering machine according to claim 3, characterized in that: the water spray opening is obliquely arranged towards the exhaust opening.

Technical Field

The invention belongs to the technical field of flue gas purification, and particularly relates to a selective desulfurization and denitrification device for flue gas of a sintering machine.

Background

The desulfurization and denitrification of the sintering flue gas are key points and difficulties of the current environment-friendly work in the steel industry, mainly lie in that the existing device is a single treatment process no matter the concentration of the flue gas, and different treatment processes can be completely adopted for flue gases with different concentrations, so that the resources can be saved nearly possibly, and the flue gas purification is not influenced.

Disclosure of Invention

In order to solve the problems, the invention provides a device for selective desulfurization and denitrification of sintering machine flue gas, which selects a first air box and a second air box according to the concentration of the flue gas to be treated, and avoids resource waste.

In order to realize the functions, the technical scheme adopted by the invention is as follows: a device for selective desulfurization and denitrification of flue gas of a sintering machine comprises a workbench, supporting legs, an air pump II, a placing plate, a severe purification device, a mild purification device, an air pump I, a vertical plate, an air box I and an air box II, wherein the supporting legs are symmetrically arranged below the workbench, the placing plate is arranged between the supporting legs, the severe purification device is arranged at the top of the placing plate, the vertical plate is arranged at the top of the workbench, the air box I is arranged at the top of the workbench, the air box II is arranged at the top of the workbench, the air pump I is arranged on the side surface of the vertical plate and connected to the air box I, the mild purification device is arranged at the top of the workbench and connected to the air pump I, and the air pump II is arranged at the top of the placing plate and connected to the severe purification device and the air box II; the heavy purification device comprises a movable plate, a filter bin, a filter plate, a purification bin, a drain pipe, a water spray port, a water pump, a spray pipe, a connecting ring, a treatment fluid placing bin and an exhaust port, wherein the filter bin is arranged on the top of the placing table and connected to the air pump II, the movable plate can movably penetrate through the top of the filter bin, the filter plate is arranged below the movable plate and arranged in the filter bin, the purification bin is arranged on the side surface of the filter bin, the upper surface and the lower surface of the inner wall of the purification bin are both arranged in a central concave structure so as to conveniently control the flow direction of flue gas, the drain pipe is arranged at the center of the bottom wall of the purification bin, the treatment fluid placing bin is arranged at the top of the placing table and used for storing treatment fluid which can be subjected to denitration and desulfurization, the water pump placing table top is connected to the treatment fluid placing bin, the exhaust port is arranged at the center of the top of the filter bin and arranged at the top of the exhaust pipe, and the water spray port is symmetrically arranged at the position, which is close to the center of the upper wall of the inner wall of the purification bin, the spray tube is connected in the water jet top, the linking ring is located the gas vent top and is connected in the spray tube top, linking ring connection is in the water pump top, and in the aspiration pump two sent the flue gas into the filtration storehouse, filtered through the filter, later got into the purification storehouse in, the water pump extraction treatment fluid sprayed in the purification storehouse through the water jet, treatment fluid and flue gas contact reached flue gas desulfurization denitration's purpose.

Furthermore, the movable plate top is equipped with the handle, conveniently controls movable plate and filter and moves from filtering the storehouse and locate, changes or washs the filter, guarantees the filter capacity of filter.

Furthermore, the connecting ring is of an annular structure, a fixing rod is arranged at the top of the connecting ring, and the fixing rod is arranged below the workbench and used for fixing the connecting ring.

Furthermore, the water spray nozzles are obliquely arranged towards the exhaust port, and cross water flow is formed by the water spray nozzles and can be fully contacted with the flue gas in the purification bin, so that the aim of purifying the flue gas is fulfilled.

The invention adopts the structure to obtain the following beneficial effects: the selective desulfurization and denitrification device for the flue gas of the sintering machine, provided by the invention, is simple to operate, compact in mechanism and reasonable in design, different devices can be selected for flue gas treatment according to the concentration of the flue gas by additionally arranging the heavy purification device and the light purification device, so that the flue gas treatment can be finished, unnecessary resources and time are saved, and the cost of the flue gas treatment is reduced.

Drawings

FIG. 1 is an overall structure diagram of a selective desulfurization and denitrification device for flue gas of a sintering machine according to the present invention;

FIG. 2 is a structural diagram of a heavy purification device of a device for selective desulfurization and denitrification of sintering machine flue gas according to the present invention.

The device comprises a workbench, 2, supporting legs, 3, a second air suction pump, 4, a placing plate, 5, a heavy purification device, 6, a light purification device, 7, a first air suction pump, 8, a vertical plate, 9, a first air bellow, 10, a second air bellow, 11, a moving plate, 12, a filtering bin, 13, a filtering plate, 14, a purifying bin, 15, a drainage pipe, 16, a water spray nozzle, 17, a water pump, 18, a spray pipe, 19, a connecting ring, 20, a treatment liquid placing bin, 21, an exhaust port, 22, a handle, 23 and a fixing rod.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figures 1-2, the device for selective desulfurization and denitrification of flue gas of a sintering machine comprises a workbench 1, supporting legs 2, a second air suction pump 3, a placing plate 4, a heavy purification device 5, a light purification device 6, a first air suction pump 7, a vertical plate 8, a first air box 9 and a second air box 10, the supporting legs 2 are symmetrically arranged below the workbench 1, the placing plate 4 is arranged between the supporting legs 2, the heavy purification device 5 is arranged on the top of the placing plate 4, the vertical plate 8 is arranged on the top of the workbench 1, the first air box 9 is arranged at the top of the workbench 1, the second air box 10 is arranged at the top of the workbench 1, the first air pump 7 is arranged on the side surface of the vertical plate 8 and connected with the first air box 9, the mild purification device 6 is arranged at the top of the workbench 1 and connected with the first air pump 7, the second air pump 3 is arranged at the top of the placing plate 4 and is connected to the heavy purification device 5 and the second air box 10; the heavy purification device 5 comprises a movable plate 11, a filter bin 12, a filter plate 13, a purification bin 14, a drain pipe 15, a water spray nozzle 16, a water pump 17, a spray pipe 18, a linking ring 19, a treatment fluid placing bin 20 and an exhaust port 21, wherein the filter bin 12 is arranged on the top of a placing table and connected to an air pump II 3, the movable plate 11 can movably penetrate through the top of the filter bin 12, the filter plate 13 is arranged below the movable plate 11 and arranged in the filter bin 12, the purification bin 14 is arranged on the side surface of the filter bin 12, the upper surface and the lower surface of the inner wall of the purification bin 14 are both in a central concave structure, the drain pipe 15 is arranged at the center of the bottom wall of the purification bin 14, the treatment fluid placing bin 20 is arranged on the top of the placing table, the top of the water pump 17 is connected to the treatment fluid placing bin 20, and the exhaust port 21 is arranged at the center of the top of the filter bin 12 and arranged at the top of an exhaust pipe, the water spray 16 is symmetrically arranged at the center of the inner upper wall close to the lower part of the inner upper wall in the purifying bin 14, the spray pipe 18 is connected to the top of the water spray 16, the connecting ring 19 is arranged at the top of the exhaust port 21 and connected above the spray pipe 18, and the connecting ring 19 is connected to the top of the water pump 17.

The top of the moving plate 11 is provided with a handle 22.

The connecting ring 19 is of an annular structure, a fixing rod 23 is arranged at the top of the connecting ring 19, and the fixing rod 23 is arranged below the workbench 1.

The water spray 16 is inclined toward the exhaust port 21.

When in specific use, firstly, according to the concentration of the flue gas generated by the sintering machine, the flue gas is selectively sent into the first air box 9 or the second air box 10, if the flue gas is sent into the first air box 9, the first air pump 7 is started, the first air pump 7 pumps the flue gas in the first air box 9 and sends the flue gas into the mild purification device 6, the flue gas is purified by the mild purification device 6, if the flue gas is sent into the second air box 10, the second air pump 3 and the water pump 17 are started, the second air pump 3 pumps the flue gas in the second air box 10, and the treated flue gas is sent into a filter bin 12, filtered by a filter plate 13 and then enters a purification bin 14, a water pump 17 pumps the treatment liquid, then the treatment liquid is sprayed into the purification bin 14 through a water spray opening 16 by the water pump 17 through a connecting ring 19 and a spray pipe 18, the treatment liquid is contacted with the flue gas to achieve the aim of flue gas desulfurization and denitration, the treated flue gas is discharged through an exhaust opening 21, and the treatment liquid is discharged through a drain pipe 15.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.