CN210434287U

CN210434287U - Flue gas desulfurization device of sintering machine

Info

Publication number: CN210434287U
Application number: CN201920797646.5U
Authority: CN
Inventors: 王怀远; 黄文庆
Original assignee: Tongling Rotary Special Steel Co Ltd
Current assignee: Tongling Rotary Special Steel Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-05-01
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a sintering machine flue gas desulfurization device, including desulfurizing tower and support, the desulfurizing tower passes through the support and sets up with ground surface horizontal plane is perpendicular, the bottom of desulfurizing tower is connected with the admission cylinder, the waste liquid export has been seted up to the bottom of admission cylinder, radially be provided with the flue gas inlet along the admission cylinder on the lateral wall of admission cylinder, the top of desulfurizing tower is provided with the exhanst gas outlet along the axial of desulfurizing tower, the inside top fixed mounting that is located the admission cylinder of desulfurizing tower has the second inlet tube, the outside that the one end of second inlet tube extended the desulfurizing tower is connected with liquid supply device, is located be connected with the second atomizer on the outer wall of the inside second inlet tube of desulfurizing tower, the second atomizer shower nozzle is connected to the delivery port of second atomizer. The utility model discloses an extension flue gas can carry out abundant reaction by the flue gas in the inside time of limestone reagent contact reaction of desulphurization unit, has promoted the desulfurization effect of flue gas.

Description

Flue gas desulfurization device of sintering machine

Technical Field

The utility model relates to a flue gas desulfurization technical field especially relates to a sintering machine flue gas desulfurization device.

Background

The polluting gases generated in the production process of steel mainly comprise sintering machine flue gas, blast furnace gas, coke oven gas and the like. In the sintering process, iron ore, calcium oxide, fluorite and the like are mainly ground and uniformly mixed, then conveyed to a sintering machine to be calcined to generate coarse iron, and flue gas of the sintering machine is generated in the sintering process. The emission of flue gas generated by sintering accounts for more than 60% of the total emission of steel production, and is a main source of sulfur dioxide generated in the steel production process; flue gas desulfurization refers to the removal of sulfur oxides from flue gases or other industrial waste gases, the sulfur dioxide in flue gases being acidic in nature and being removed from the flue gas by reaction with a suitable alkaline substance. The most commonly used alkaline materials for flue gas desulfurization are limestone, quicklime and slaked lime. Limestone is produced in a large quantity and is therefore relatively inexpensive, and both quicklime and slaked lime are produced from limestone by heating. In a wet flue gas desulfurization system, alkaline substances and flue gas meet in a spray tower, sulfur dioxide in the flue gas is dissolved in water to form a dilute acid solution, then the dilute acid solution and the alkaline substances dissolved in the water are subjected to neutralization reaction, sulfite and sulfate generated by the reaction are separated out from the water solution, the flue gas enters the straight-line ascending from the bottom of the desulfurization tower during the work of the conventional desulfurization device, the contact time with a reactant sprayed by a spraying device is short, the reaction cannot be sufficient, the desulfurization effect is poor, and the discharged flue gas contains sulfur dioxide gas to pollute the environment.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a sintering machine flue gas desulphurization device has solved desulphurization unit desulfurization inefficiency, and flue gas and the short problem of reaction reagent intensive mixing reaction time have improved flue gas desulfurization's work efficiency, have simplified desulphurization unit's structure.

The flue gas desulfurization device for the sintering machine according to the embodiment of the utility model comprises a desulfurization tower and a support, wherein the desulfurization tower is vertically arranged with the ground plane through the support, the bottom of the desulfurization tower is connected with an air inlet cylinder, the bottom of the air inlet cylinder is provided with a waste liquid outlet, the side wall of the air inlet cylinder is provided with a flue gas inlet along the radial direction of the air inlet cylinder, the top of the desulfurization tower is provided with a flue gas outlet along the axial direction of the desulfurization tower, the inside of the desulfurization tower is fixedly provided with a second water inlet pipe above the air inlet cylinder, one end of the second water inlet pipe extends out of the desulfurization tower and is connected with a liquid supply device, the outer wall of the second water inlet pipe inside the desulfurization tower is connected with a second atomizer, the water outlet of the second atomizer is connected with a second atomizer nozzle, the inside of the desulfurization tower is fixedly provided with a first water inlet pipe, the setting of first inlet tube is the same with the second inlet tube, the inside of desulfurizing tower is located and is provided with the baffle between first inlet tube and the second inlet tube, the baffle falls into two upper and lower cavitys with the desulfurizing tower, two be linked together through communicating pipe between the cavity, the center department of baffle is connected with the earial drainage subassembly.

Preferably, the earial drainage subassembly includes round hole, spring and plectane, the center department at the baffle up end is seted up to the round hole, the lower terminal surface of baffle seted up with plectane assorted plectane groove, still seted up the spring groove between plectane groove and the baffle, the spring is accomodate completely inside the spring groove when being in natural state, the plectane passes through the spring and is connected with the baffle, and the effort of spring is less in the earial drainage subassembly, can guarantee that the interface of liquid is opened the plectane in the range of height that is less than communicating pipe.

Preferably, the inner wall of the desulfurizing tower is provided with a fixture block, and the partition plate is connected with the desulfurizing tower through the fixture block.

Preferably, one side fixed mounting that lies in the desulfurizing tower on the support has the air feed ware, the exit end of air feed ware is connected with the trachea, tracheal other end is connected with the end of intaking of first inlet tube.

Preferably, a sealing plug is fixedly connected to the joint of the upper part of the circular plate and the circular hole.

Preferably, the front end face of the desulfurizing tower is connected with an access door through a hinge.

The utility model discloses in, divide into two cavitys through the inside at the desulfurizing tower that sets up a baffle with the inside of desulfurizing tower and carry out work, flue gas after the first stage desulfurization enters into the last cavity from communicating pipe and continues desulfurization reaction, and the process that the flue gas enters into the last cavity from communicating pipe is slower, can make the flue gas carry out the chemical reaction desulfurization under the cavity for a long time, the flue gas that enters into the last cavity is discharged after the thorough desulfurization of lime stone liquid, the waste liquid of going up the cavity reaches and can open automatically after a certain amount and discharge the earial drainage subassembly from the waste liquid export, thereby also the same extension goes up the time of desulfurization reaction in the cavity, the inside structural design of whole desulphurization unit is simple, be convenient for put into production and use, the thorough purification of flue gas has been ensured, the pollution of harmful gas to the environment has been reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a flue gas desulfurization device for a sintering machine according to the present invention;

FIG. 2 is a schematic diagram of the internal structure of a flue gas desulfurization device for a sintering machine according to the present invention;

FIG. 3 is a view of the structure of the initial state of the discharge assembly of the flue gas desulfurization device for a sintering machine according to the present invention;

fig. 4 is the utility model provides a sintering machine flue gas desulphurization device blowdown flow subassembly operating condition structure chart.

In the figure: 1. a desulfurizing tower; 2. a support; 3. an air inlet cylinder; 4. a flue gas inlet; 5. a waste liquid outlet; 6. a first water inlet pipe; 7. an air tube; 8. an air supply device; 9. a flue gas outlet; 10. a communicating pipe; 11. a first atomizer; 12. a first atomizer spray head; 13. a clamping block; 14. a partition plate; 15. a second water inlet pipe; 16. a second atomizer; 17. a second atomizer spray head; 18. a circular hole; 19. a spring slot; 20. a circular plate groove; 21. a spring; 22. a circular plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, a flue gas desulfurization device for a sintering machine, comprising a desulfurization tower 1 and a support 2, wherein the desulfurization tower 1 is vertically arranged with a ground horizontal plane through the support 2, the bottom of the desulfurization tower 1 is connected with an air inlet cylinder 3, the bottom of the air inlet cylinder 3 is provided with a waste liquid outlet 5, a flue gas inlet 4 is radially arranged on the side wall of the air inlet cylinder 3 along the air inlet cylinder 3, the top of the desulfurization tower 1 is provided with a flue gas outlet 9 along the axial direction of the desulfurization tower 1, a second water inlet pipe 15 is fixedly arranged on the upper part of the air inlet cylinder 3 inside the desulfurization tower 1, one end of the second water inlet pipe 15 extends out of the desulfurization tower 1 and is connected with a liquid supply device, a second atomizer 16 is connected on the outer wall of the second water inlet pipe 15 inside the desulfurization tower 1, the water outlet of the second atomizer 16 is connected with a second atomizer nozzle 17, a first water inlet pipe, the arrangement of the first water inlet pipe 6 is the same as that of the second water inlet pipe 15, a partition plate 14 is arranged in the desulfurization tower 1 between the first water inlet pipe 6 and the second water inlet pipe 15, the partition plate 14 divides the desulfurization tower 1 into an upper cavity and a lower cavity, the two cavities are communicated through a communicating pipe 10, and the center of the partition plate 14 is connected with a drainage assembly; the drainage assembly comprises a circular hole 18, a spring 21 and a circular plate 22, the circular hole 18 is formed in the center of the upper end face of the partition plate 14, a circular plate groove 20 matched with the circular plate 22 is formed in the lower end face of the partition plate 14, a spring groove 19 is further formed between the circular plate groove 20 and the partition plate 14, the spring 21 is completely contained in the spring groove 19 when in a natural state, and the circular plate 22 is connected with the partition plate 14 through the spring 21; a fixture block 13 is arranged on the inner wall of the desulfurizing tower 1, and the partition plate 14 is connected with the desulfurizing tower 1 through the fixture block 13; an air supply device 8 is fixedly arranged on one side of the bracket 2 positioned on the desulfurizing tower 1, the outlet end of the air supply device 8 is connected with an air pipe 7, and the other end of the air pipe 7 is connected with the water inlet end of a first water inlet pipe 6; the sealing plug is fixedly connected with the joint of the upper part of the circular plate 22 and the round hole 18; the front end face of the desulfurizing tower 1 is connected with an access door through a hinge.

During operation, flue gas of a sintering machine enters the desulfurizing tower 1 from the flue gas inlet 4 on the side wall of the air inlet cylinder 3, the first water inlet pipe 6 and the second water inlet pipe 15 are both connected with the liquid supply device, liquid in the liquid supply device is limestone solution, the solution enters the first water inlet pipe 6 and the second water inlet pipe 15 respectively, the solution is atomized under the action of the second atomizer 16 and is sprayed out through the second atomizer spray nozzle 17, the atomized solution and sulfur dioxide gas in the flue gas are removed through chemical reaction, the reacted waste liquid flows out from the waste liquid outlet 5 under the action of self gravity, the desulfurized flue gas enters the cavity at the upper part of the desulfurizing tower 1 from the communicating pipe 10, the flue gas is further sprayed in the upper cavity under the action of the first atomizer 11 connected with the first water inlet pipe 6 for chemical reaction, the air supply device 8 is started at the moment, the air supply device 8 presses the gas into the first atomizer 11, liquid increases spray intensity and density under the effect of gas and spouts from first atomizer shower nozzle 12, carry out the desulfurization with remaining sulfur dioxide gas in the flue gas, after the waste liquid in the upper chamber accumulates to a certain extent, waste liquid produces the pressure when being greater than the effort of earial drainage subassembly's spring 21 to baffle 14 center, disc 22 leaves disc groove 20 and moves down, waste liquid flows into in the lower chamber from round hole 18, flow out from waste liquid export 5, when the waste liquid volume in the upper chamber is little, its pressure that produces is less than the effort of spring 21, disc 22 resumes initial position again, flue gas after further the desulfurization is discharged from exhanst gas outlet 9, after whole desulfurization reaction, personnel open the access door, remove baffle 14 and can discharge the waste liquid that remains on baffle 14 from waste liquid export 5.

To sum up, divide into two cavitys through the inside at the desulfurizing tower with the inside of desulfurizing tower and carry out work, flue gas after the first stage desulfurization enters into the last cavity from communicating pipe and continues desulfurization reaction, and the process that the flue gas enters into the last cavity from communicating pipe is slower, can make the flue gas carry out the chemical reaction desulfurization for a long time at cavity down, the flue gas that enters into the last cavity is discharged after the limestone liquid thoroughly desulfurization, the waste liquid of going up the cavity reaches can open automatically after a certain amount and discharge from the waste liquid export discharge by the earial drainage subassembly, thereby also the same time of desulfurization reaction in the last cavity of having prolonged, the inside structural design of whole desulphurization unit is simple, be convenient for put into production and use, the thorough purification of flue gas has been ensured, the pollution of harmful gas to the environment has been reduced.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a sintering machine flue gas desulphurization unit which characterized in that: the desulfurization tower is perpendicular to a ground plane through a support, an air inlet cylinder is connected to the bottom of the desulfurization tower, a waste liquid outlet is formed in the bottom of the air inlet cylinder, a flue gas inlet is radially formed in the side wall of the air inlet cylinder along the air inlet cylinder, a flue gas outlet is formed in the top of the desulfurization tower along the axial direction of the desulfurization tower, a second water inlet pipe is fixedly mounted in the desulfurization tower above the air inlet cylinder, one end of the second water inlet pipe extends out of the desulfurization tower and is connected with a liquid supply device, a second atomizer is connected to the outer wall of the second water inlet pipe in the desulfurization tower, a water outlet of the second atomizer is connected with a second atomizer nozzle, a first water inlet pipe is fixedly mounted in the desulfurization tower below the flue gas outlet, the first water inlet pipe is arranged the same as the second water inlet pipe, and a partition plate is arranged in the desulfurization tower between the first water inlet pipe and the second water inlet pipe, the desulfurization tower is divided into an upper cavity and a lower cavity by the partition plate, the two cavities are communicated through a communicating pipe, and the center of the partition plate is connected with a drainage assembly.

2. The flue gas desulfurization device for sintering machine according to claim 1, characterized in that: the discharge assembly comprises a round hole, a spring and a circular plate, the round hole is formed in the center of the upper end face of the partition plate, a circular plate groove matched with the circular plate is formed in the lower end face of the partition plate, a spring groove is further formed between the circular plate groove and the partition plate, the spring is completely contained in the spring groove when being in a natural state, and the circular plate is connected with the partition plate through the spring.

3. The flue gas desulfurization device for sintering machine according to claim 1, characterized in that: the inner wall of the desulfurizing tower is provided with a clamping block, and the partition plate is connected with the desulfurizing tower through the clamping block.

4. The flue gas desulfurization device for sintering machine according to claim 1, characterized in that: the support is located one side fixed mounting of desulfurizing tower has the air feed ware, the exit end of air feed ware is connected with the trachea, the tracheal other end is connected with the end of intaking of first inlet tube.

5. The flue gas desulfurization device for sintering machine according to claim 2, characterized in that: and a sealing plug is fixedly connected with the joint of the upper part of the circular plate and the round hole.

6. The flue gas desulfurization device for sintering machine according to claim 1, characterized in that: the front end face of the desulfurizing tower is connected with an access door through a hinge.