CN217247895U

CN217247895U - Denitration device for purifying flue gas of steel sintering machine

Info

Publication number: CN217247895U
Application number: CN202220162005.4U
Authority: CN
Inventors: 李庆军; 景立华; 李亚宁
Original assignee: Laiwu Ruide Machinery Co ltd
Current assignee: Laiwu Ruide Machinery Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-08-23
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to the field of industrial waste gas treatment, in particular to a denitration device for steel sintering machine flue gas purification, which comprises a spray box and a liquid supply box, wherein both sides of the spray box are respectively provided with a flue gas inlet and a flue gas outlet, a plurality of groups of guide plates are arranged at intervals along the flue gas flowing direction, adjacent guide plates are respectively arranged on the inner walls of two opposite sides of the spray box, the plurality of groups of guide plates are matched to form a zigzag flue for flue gas flowing, a plurality of groups of spray pieces are arranged along the flue direction, and the spray pieces are used for spraying purification liquid; the confession sap cavity and hybrid chamber are provided with in the confession sap cavity, are used for the confession liquid that sprays the piece and the preparation of purifying liquid respectively, through the utility model discloses the extension flue gas has improved the flue gas and has received the purifying liquid and spout the time of purifying to avoided present at flue gas denitration in-process, the flue gas is shorter with the contact time of the purifying liquid that sprays, the relatively poor problem of denitration effect.

Description

Denitration device for purifying flue gas of steel sintering machine

Technical Field

The utility model relates to an industrial waste gas handles the field, specifically is a denitrification facility for steel sintering machine gas cleaning.

Background

Flue gas denitration is a flue gas purification technology for removing nitrogen oxides in flue gas discharged in industrial production, and the nitrogen oxides are one of main sources of air pollution, so in order to reduce pollution caused by the flue gas, the flue gas needs to be subjected to desulfurization and denitration.

The mode that current flue gas denitration device often utilized the scavenging solution degree to spray the flue gas, purifies the absorption through the nitrogen oxide in the scavenging solution with the flue gas, accomplishes the denitration of flue gas, and the actual contact time of flue gas and scavenging solution is shorter when using, and the effect of denitration is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a denitrification facility for steel sintering machine gas cleaning to solve at present at the flue gas denitration in-process, the flue gas is shorter with the contact time of the scavenging solution that sprays, the relatively poor problem of denitration effect.

In order to achieve the purpose, the utility model provides a denitration device for purifying the flue gas of a steel sintering machine, which comprises a spraying box and a liquid supply box;

the two sides of the spray box are respectively provided with a flue gas inlet and a flue gas outlet, a plurality of groups of guide plates are arranged at intervals along the flow direction of the flue gas, adjacent guide plates are respectively arranged on the inner walls of the two opposite sides of the spray box, the guide plates are matched to form a zigzag flue for the flow of the flue gas, and a plurality of groups of spray pieces are arranged along the flue direction and are used for spraying the purifying liquid;

the utility model discloses a purification device, including liquid supply tank, liquid supply chamber and multiunit spray part, be provided with liquid supply chamber and hybrid chamber in the liquid supply tank, liquid supply chamber and multiunit spray part intercommunication carry out the scavenging solution and supply the liquid, hybrid chamber and liquid supply chamber intercommunication for mix and prepare the scavenging solution, liquid supply chamber and hybrid chamber all are provided with the stirring subassembly, and two sets of stirring subassemblies pass through the driving medium transmission and are connected.

As the utility model discloses further scheme, gas inlet and exhanst gas outlet department all are provided with fan assembly for help the flue gas to flow, wherein fan assembly dismantlement formula is installed in intercommunication mouth department, is convenient for maintain and change the fan.

As the utility model discloses further scheme, it is provided with the slope to spray bottom of the case portion, sprays the case and opens at the slope low level side and be equipped with the drain for the discharge sprays the waste liquid, the guide plate bottom is equipped with and supplies to spray the breach that the waste liquid flows, and when purifying, the drain is closed state, avoids the flue gas to spill over from drain, when spraying the incasement and spraying waste liquid to blowdown liquid level, stops the purification of flue gas, opens the drain, sprays the waste liquid and discharges.

As the utility model discloses a further scheme, it is the spray thrower to spray the piece, the spray thrower with spray case outside feed pump and be connected, the input of feed pump passes through the pipeline and feeds through with supplying the liquid chamber, will supply the purifying liquid of liquid intracavity to carry to spray thrower department through the feed pump.

As a further scheme of the utility model, the hybrid chamber with supply through the liquid supply pipe intercommunication between the liquid chamber, the last intercommunication valve that is provided with of liquid supply pipe avoids the scavenging solution of hybrid chamber to flow into at the hybrid process and supplies the liquid intracavity.

As a further scheme of the utility model, the stirring subassembly includes agitator, multiunit the agitator axis of rotation corresponds to rotate to be connected in supplying sap cavity and mixing chamber, the driving medium is first driving band, and the multiunit axis of rotation stretches out the outer axle body portion of chamber and connects through first driving band transmission, is equipped with the drive wheel that is used for connecting first driving band in the multiunit axis of rotation respectively, and wherein a set of axis of rotation is connected with the driving piece transmission.

Specifically, the driving piece is driving motor, driving motor's drive end is connected with corresponding axis of rotation transmission through the second drive belt, drives the multiunit agitator through driving motor and rotates.

Compared with the prior art, the utility model discloses set up the multiunit guide plate in spraying the incasement for the flue gas flows along the tortuous flue that multiunit guide plate water conservancy diversion formed, and the time that the extension flue gas was spraying the purification in spraying the incasement through the stroke, has improved the flue gas and has received the purifying liquid to spray the purification, thereby solves at present in flue gas denitration in-process flue gas and the contact time of the purifying liquid that sprays shorter, the relatively poor problem of denitration effect.

Drawings

Fig. 1 is the utility model provides a pair of a denitration device for steel sintering machine gas cleaning's structural schematic diagram.

Fig. 2 is a right side schematic view of fig. 1 provided by the present invention.

Fig. 3 is a schematic structural diagram of a flow guide plate provided by the present invention.

In the drawings: 1-a spray box; 101-a flue gas inlet; 102-a flue gas outlet; 103-a sewage draining outlet; 104-a ramp; 2-a flow guide plate; 3-a liquid supply tank; 4-liquid supply pump; 5-a liquid supply tank; 6-a liquid supply pipeline; 7-a stirrer I; 701-rotating shaft I; 7011-driving wheel I; 8-a stirrer II; 801-rotating shaft II; 8011-drive wheel II; 9-a first drive belt; 10-a second drive belt; 11-driving the motor.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, in the embodiment of the present invention, a denitration device for flue gas purification of a steel sintering machine includes a spray box 1 and a liquid supply box 53, wherein both sides of the spray box 1 are respectively provided with a flue gas inlet 101 and a flue gas outlet 102, a plurality of groups of guide plates 2 are arranged at intervals along a flue gas flowing direction, adjacent guide plates 2 are respectively installed on inner walls of both sides of the spray box 1, the plurality of groups of guide plates 2 cooperate to form a zigzag flue for flue gas to flow, a plurality of groups of spraying members are arranged along the flue direction, and the spraying members are used for spraying purification liquid; a liquid supply cavity and a mixing cavity are arranged in the liquid supply box 53, the liquid supply cavity is communicated with a plurality of groups of spraying parts to supply purified liquid, the mixing cavity is communicated with the liquid supply cavity and is used for mixing and preparing the purified liquid, stirring components are arranged in the liquid supply cavity and the mixing cavity, and the two groups of stirring components are in transmission connection through transmission parts;

when the utility model is used, flue gas enters the spray box 1 through the flue gas inlet 101 and is conveyed to the flue gas outlet 102 along a zigzag flue gas channel, and during the period, the flue gas is sprayed and absorbed by purifying liquid through a plurality of groups of spray parts, nitrogen oxides in the flue gas are dissolved and collected, meanwhile, the purifying liquid is prepared and supplied through the liquid supply box 53, the middle part of the liquid supply box 53 is provided with a baffle plate, the liquid supply box 53 is divided into an upper cavity and a lower cavity, namely a mixing cavity and a liquid supply cavity in turn;

further the utility model discloses in, the 2 intervals of guide plate set up in the upper and lower both sides that spray case 1, and of course actually when the design, also can set up guide plate 2 in the both sides of horizontal direction, the utility model discloses do not specifically prescribe a limit to guide plate 2's mounted position, also can separate two cavities in horizontal both sides through the baffle in the confession liquid case 53 simultaneously, need set up corresponding pump machine when the design certainly.

As shown in fig. 1, in the embodiment of the present invention, the smoke inlet 101 and the smoke outlet 102 are both provided with a fan assembly for assisting the flow of smoke, wherein the fan assembly is detachably installed at the communication port, which is convenient for maintaining and replacing the fan.

As shown in fig. 1 and fig. 3, in the embodiment of the utility model, spray 1 bottom of case and be provided with slope 104, spray case 1 and open at slope 104 low-level side and be equipped with drain 103 for the discharge sprays the waste liquid, 2 bottoms of guide plate are equipped with and supply to spray the breach that the waste liquid flows, and when purifying, drain 103 is the off-state, avoids the flue gas to locate excessive from drain 103, and when spraying the waste liquid to the blowdown liquid level in spray case 1, stops the purification of flue gas, opens drain 103, sprays the waste liquid and discharges.

As shown in fig. 1, in the embodiment of the present invention, the spraying part is a sprayer, the sprayer is connected to the liquid supply pump 4 outside the spraying box 1, the input end of the liquid supply pump 4 is communicated with the liquid supply cavity through a pipeline, the purifying liquid in the liquid supply cavity is conveyed to the sprayer through the liquid supply pump 4, and the spraying is performed through the sprayer.

As shown in fig. 1, in the embodiment of the present invention, the mixing chamber and the liquid supply chamber are communicated with each other through the liquid supply pipe 6, and the liquid supply pipe 6 is provided with a communication valve to prevent the purified liquid in the mixing chamber from flowing into the liquid supply chamber during the mixing process.

As shown in fig. 2, in the embodiment of the present invention, the stirring assembly includes a stirrer i 7 and a stirrer ii 8, a rotation axis i 701 and a rotation axis ii 801 corresponding to the two sets of stirrers respectively rotate to connect the mixing chamber and the liquid supply chamber, the transmission member is a first transmission belt 9, shaft body portions of the rotation axis i 701 and the rotation axis ii 801 extending out of the corresponding chambers are in transmission connection through the first transmission belt 9, and the rotation axis i 701 and the rotation base 2 are respectively provided with a transmission wheel i 7011 and a transmission wheel ii 8011 for connecting the first transmission belt 9;

in the utility model, the purified liquid in the mixing cavity is uniformly stirred by the stirrer I7 to be prepared, and the purified liquid in the liquid supply cavity is stirred by the stirrer II 8 to avoid the purified liquid from precipitating, and because the rotating speeds of the two groups of stirrers are different, the specifications of the driving wheel I7011 and the driving wheel II 8011 can be adjusted in practical use, so that the rotating speeds of the two groups of stirrers can be adjusted;

the rotating shaft II 801 is in transmission connection with a driving piece, the driving piece is a driving motor 11, the driving end of the driving motor 11 is in transmission connection with the rotating shaft II 801 through a second transmission belt 10, and the driving motor 11 drives the multiple groups of stirrers to rotate.

The utility model has the advantages of, through setting up multiunit guide plate 2 in spraying case 1 for the flue gas flows along the tortuous flue that multiunit guide plate 2 water conservancy diversion formed, and the time that the extension flue gas was spraying purification in spraying case 1 through the stroke, has improved the flue gas and has received the purifying liquid and has sprayed the purification, thereby solves at present shorter, the relatively poor problem of denitration effect at flue gas denitration in-process flue gas and the contact time of the purifying liquid that sprays.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A denitration device for purifying flue gas of a steel sintering machine is characterized by comprising a spraying box and a liquid supply box;

2. The denitration device for flue gas purification of steel sintering machine according to claim 1, wherein a fan assembly is arranged at each of the flue gas inlet and the flue gas outlet for assisting the flow of flue gas.

3. The denitration device for purifying the flue gas of the steel sintering machine according to claim 1, wherein a slope is arranged at the bottom of the spray box, a drain outlet is arranged at the lower side of the slope of the spray box and used for discharging the spray waste liquid, and a notch for flowing the spray waste liquid is arranged at the bottom of the flow guide plate.

4. The denitration device for purifying the flue gas of the steel sintering machine according to claim 1, wherein the spray member is a sprayer, the sprayer is connected with a liquid supply pump outside the spray box, and an input end of the liquid supply pump is communicated with the liquid supply cavity through a pipeline.

5. The denitration device for purifying the flue gas of the steel sintering machine according to claim 1, wherein the mixing chamber is communicated with the liquid supply chamber through a liquid supply pipeline, and the liquid supply pipeline is provided with a communication valve.

6. The denitration device for flue gas purification of a steel sintering machine according to any one of claims 1 to 5, wherein the stirring assembly comprises a stirrer, a plurality of groups of stirrer rotating shafts are correspondingly and rotatably connected in the liquid supply cavity and the mixing cavity, the driving member is a first driving belt, shaft body parts of the plurality of groups of rotating shafts extending out of the cavity are in driving connection through the first driving belt, driving wheels for connecting the first driving belt are respectively arranged on the plurality of groups of rotating shafts, and one group of rotating shafts is in driving connection with the driving member.

7. The denitration device for purifying flue gas of a steel sintering machine according to claim 6, wherein the driving member is a driving motor, and a driving end of the driving motor is in transmission connection with a corresponding rotating shaft through a second transmission belt.