CN216498026U

CN216498026U - Dust-removing and desulfurizing device for dry quenching waste gas

Info

Publication number: CN216498026U
Application number: CN202123176610.1U
Authority: CN
Inventors: 刘骁; 胡斌
Original assignee: Fengcheng Gaoxin Coking Co ltd
Current assignee: Fengcheng Gaoxin Coking Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-13
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses a dust removal and desulfurization device for coke dry quenching waste gas, and belongs to the field of dust removal and desulfurization of coke dry quenching waste gas. The coke dry quenching waste gas dust removal and desulfurization device comprises a gravity dust collector body, wherein the gas outlet end of the gravity dust collector body is connected with a cyclone dust collector, the gas outlet end of the cyclone dust collector is connected with a desulfurization box, and the top of the gravity dust collector body is provided with a circulating dust removal mechanism; the utility model can push the waste gas in the gravity dust collector body to pass through the dust collecting baffle for multiple times by arranging the structural components such as the U-shaped pipe, the circulating cylinder, the flywheel, the piston and the like, thereby achieving the effect of multiple dust collection, reducing the load of the cyclone dust collector in the secondary dust collection of the next procedure, overcoming the defect of easy scaling in the calcium desulphurization by the device by arranging the desulphurization box, the motor and the scraping brush plate, reducing unnecessary economic, manual and time costs, and indirectly increasing the production efficiency of a factory.

Description

Dust-removing and desulfurizing device for dry quenching waste gas

Technical Field

The utility model relates to the technical field of dust removal and desulfurization of coke dry quenching waste gas, in particular to a dust removal and desulfurization device for coke dry quenching waste gas.

Background

The coke dry quenching is a method for cooling red coke by adopting inert gas, in the coke dry quenching process, the red coke is loaded from the top of a coke dry quenching furnace, low-temperature inert gas is circularly blown into a red coke layer of a cooling chamber of the coke dry quenching furnace by air to absorb the heat of the red coke, the cooled coke is discharged from the bottom of the coke dry quenching furnace, and the high-temperature inert gas discharged from an annular flue of the coke dry quenching furnace needs to be subjected to dust removal treatment before entering the next procedure, so that when the high-temperature inert gas is reused, no pollution is caused to a subsequent system.

The dust removal of the coke dry quenching is generally divided into two times of dust removal, wherein the first time of dust removal is gravity dust removal to remove large-particle dust, and the second time of dust removal is a cyclone dust remover, so that the dust removal effect is better than that of the first time of dust removal.

However, the efficiency of primary dust removal of the existing dry quenching waste gas dust removal and desulfurization device in the actual use process is not good, large-particle dust needs to be removed and separated once due to the fact that the dust concentration is too high, but the existing primary dust removal efficiency is only 50% -80% approximately, so that the wind load of a cyclone dust collector in secondary dust removal is increased, the service life of a machine is greatly shortened, and unnecessary purchase cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the gravity dust removal effect is poor and the load of a subsequent cyclone dust collector is increased in the prior art, and provides a dust removal and desulfurization device for dry quenching waste gas.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the dry quenching waste gas dust removal and desulfurization device comprises a gravity dust collector body, wherein the gas outlet end of the gravity dust collector body is connected with a cyclone dust collector, the gas outlet end of the cyclone dust collector is connected with a desulfurization box, the top of the gravity dust collector body is provided with a circulating dust removal mechanism, the circulating dust removal mechanism comprises two U-shaped pipes, the two U-shaped pipes are respectively connected with the gas inlet end and the gas outlet end of the gravity dust collector body, one side of one U-shaped pipe is provided with an air inlet pipe in a penetrating way, an axial flow fan is arranged in the air inlet pipe, an electromagnetic control valve is fixedly arranged at one port of the air inlet pipe close to the U-shaped pipe, one side of the other U-shaped pipe is provided with an exhaust pipe in a penetrating way, the internal structures of the exhaust pipe and the air inlet pipe are completely the same, and a circulating pipe is jointly arranged between the two U-shaped pipes, the inside of circulation section of thick bamboo rotates and installs the flywheel, one side of flywheel rotates and is connected with two rotation axes, two the equal swing joint of one end of rotation axis has the piston.

In order to realize the desulfurization, preferably, the top of desulfurization case is run through and is installed and add mouth and inert gas recovery pipe, the top surface fixed mounting of desulfurization case has the motor, the output of motor runs through the top of desulfurization case, and the bottom fixedly connected with (mixing) shaft of motor output, the fixed surface of (mixing) shaft is connected with the stirring leaf, one side fixed mounting of stirring leaf has the scraping brush board, and the middle part department of stirring leaf runs through and has seted up the mounting hole, fixed mounting has the axis of rotation between the upper and lower both sides of mounting hole, the supplementary stirring leaf of circumference outer wall fixedly connected with of axis of rotation, one side of desulfurization case is run through and is installed sewage pipes, be provided with the mechanical control valve on the sewage pipes.

In order to realize gravity dust removal, preferably, the inside fixed mounting of gravity dust remover body has dust baffle, and the top of gravity dust remover body is run through and is installed pressure regulating valve, the swing joint of gravity dust remover body bottom has the collection unit.

In order to realize multiple dust removal, preferably, the circumferential outer wall of the piston is fixedly sleeved with a rubber sealing ring, and the surface of the rubber sealing ring is in relative sliding connection with the circumferential inner wall of the circulating cylinder.

In order to achieve complete dust removal and desulfurization functions, preferably, one end of the exhaust funnel is communicated with the air inlet end of the cyclone dust collector, the bottom of the cyclone dust collector is movably connected with a collection unit, the air outlet end of the cyclone dust collector is connected with a Z-shaped pipe, one end of the Z-shaped pipe is connected with a heating box, a Z-shaped pipe is fixedly installed inside the heating box, and one end of the Z-shaped pipe is connected with the desulfurization box.

In order to realize the absorption of the exhaust gas, preferably, a single chip microcomputer is fixedly mounted at the top of the circulation cylinder, a motor is fixedly mounted at one side of the circulation cylinder, and an output shaft of the motor penetrates through the surface of the circulation cylinder and is connected with a fixing pin.

In order to realize that the rotating shaft can normally rotate, preferably, a fixing pin is fixedly installed on one side of the flywheel, and the two rotating shafts are movably sleeved on the surface of the fixing pin.

In order to achieve descaling, preferably, the surface of the wiper plate contacts the inner wall of the desulfurization tank, and the sewage drain pipe is located at the bottom of one side of the desulfurization tank.

Compared with the prior art, the utility model provides a dust removal and desulfurization device for dry quenching waste gas, which has the following beneficial effects:

1. this dry quenching waste gas dust removal desulphurization unit, through setting up "U" type pipe, a circulation section of thick bamboo, flywheel and piston isotructure subassembly to can promote the inside waste gas of gravity dust remover body and way dust removal baffle many times, thereby reach the effect of removing dust many times, make the dust removal rate of once removing dust higher, reduced the load of cyclone in next process secondary dust removal, indirectly increased cyclone's life, reduced the economic loss of mill.

2. This dry quenching waste gas dust removal desulphurization unit, through setting up the desulfurization case, motor and string brush version, thereby make this device can overcome the shortcoming of easy scale deposit in the calcium method desulfurization, in the in-service use process, the motor drives the stirring leaf and rotates, not only can realize increasing sulfur dioxide's in chemical agent and the waste gas reaction area, make the reaction more thorough, the inner wall of this desulfurization case of hanging that the brush board was not stopped is driven to scrape by pivoted stirring leaf simultaneously, prevent that the scale deposit that produces from piling up in the inside of desulfurization case among the chemical reaction, the inside time and the cost of labor of artifical clearance desulfurization incasement portion have been reduced greatly, time saving and labor saving.

The device has the advantages of simple operation, low manufacturing cost, suitability for mass production, reduction of unnecessary economic, manual and time costs, and indirect increase of the production efficiency of a factory.

Drawings

FIG. 1 is a schematic sectional view of a partial cross-sectional structure of a coke dry quenching exhaust gas dust removal and desulfurization device according to the present invention;

FIG. 2 is a schematic structural diagram of a main view of a dust removal and desulfurization device for dry quenching exhaust gas provided by the utility model;

FIG. 3 is a schematic diagram of the internal structure of a circulating cylinder of the dry quenching exhaust gas dedusting and desulfurizing device provided by the utility model.

In the figure: 1. a gravity dust collector body; 101. a dust removal baffle; 102. a pressure regulating valve; 103. A collection unit; 2. a circulating dust removal mechanism; 201. a "U" shaped tube; 202. an air inlet cylinder; 203. An axial flow fan; 204. an electromagnetic control valve; 205. an exhaust funnel; 206. a circulation cylinder; 207. a flywheel; 208. a fixing pin; 209. a rotating shaft; 210. a piston; 3. a cyclone dust collector; 4. a "7" shaped tube; 5. a heating box; 501. an electric heating wire; 6. a "Z" shaped tube; 7. a desulfurization box; 701. An adding nozzle; 702. an inert gas recovery pipe; 703. a motor; 704. a stirring shaft; 705. stirring blades; 706. a scraping and brushing plate; 707. mounting holes; 708. a rotating shaft; 709. auxiliary stirring blades; 710. a sewage pipeline.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and 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.

Example (b):

referring to fig. 1-3, the dry quenching waste gas dust removal and desulfurization device comprises a gravity dust collector body 1, wherein an air outlet end of the gravity dust collector body 1 is connected with a cyclone dust collector 3, an air outlet end of the cyclone dust collector 3 is connected with a desulfurization box 7, a circulating dust removal mechanism 2 is arranged at the top of the gravity dust collector body 1, the circulating dust removal mechanism 2 comprises two U-shaped pipes 201, the number of the U-shaped pipes 201 is two, the two U-shaped pipes 201 are respectively connected with an air inlet end and an air outlet end of the gravity dust collector body 1, one side of one U-shaped pipe 201 is provided with an air inlet pipe 202 in a penetrating way, the air inlet pipe 202 is internally provided with an axial flow fan 203, an end opening of the air inlet pipe 202 close to the U-shaped pipe 201 is fixedly provided with an electromagnetic control valve 204, one side of the other U-shaped pipe 201 is provided with an exhaust pipe 205 in a penetrating way, and the internal structures of the exhaust pipe 205 and the air inlet pipe 202 are completely the same, a circulation cylinder 206 is jointly installed between the two U-shaped pipes 201, a flywheel 207 is rotatably installed inside the circulation cylinder 206, one side of the flywheel 207 is rotatably connected with two rotating shafts 209, and one ends of the two rotating shafts 209 are movably connected with pistons 210.

Specifically, the top of the desulfurization box 7 is provided with an adding nozzle 701 and an inert gas recovery pipe 702 in a penetrating manner, the top surface of the desulfurization box 7 is fixedly provided with a motor 703, the output end of the motor 703 is provided with a top of the desulfurization box 7 in a penetrating manner, the bottom end of the output end of the motor 703 is fixedly connected with a stirring shaft 704, the surface of the stirring shaft 704 is fixedly connected with a stirring blade 705, one side of the stirring blade 705 is fixedly provided with a scraping plate 706, the middle part of the stirring blade 705 is provided with a mounting hole 707 in a penetrating manner, a rotating shaft 708 is fixedly arranged between the upper side and the lower side of the mounting hole 707, the outer wall of the circumference of the rotating shaft 708 is fixedly connected with an auxiliary stirring blade 709, one side of the desulfurization box 7 is provided with a sewage discharge pipeline 710 in a penetrating manner, and the sewage discharge pipeline 710 is provided with a mechanical control valve, so that the device can overcome the defect of easy scaling in calcium desulfurization, in the practical use process, the motor 703 drives the stirring blade 705 to rotate, thereby not only increasing the reaction area of chemical agent and sulfur dioxide in the exhaust gas, make the reaction more thorough, pivoted stirring leaf 705 drives the inner wall of scraping this desulfurization case 7 of brush of hanging that brush board 706 does not stop simultaneously, prevents that the scale deposit that produces from piling up in the inside of desulfurization case 7 among the chemical reaction, has reduced the inside time and the cost of labor of manual cleaning desulfurization case 7 greatly, labour saving and time saving.

Specifically, the inside fixed mounting of gravity dust collector body 1 has dust collecting baffle 101, and the top of gravity dust collector body 1 runs through and installs pressure regulating valve 102, and the swing joint of gravity dust collector body 1 bottom has collection unit 103, and gravity dust collector body 1, dust collecting baffle 101 and collection unit 103 are prior art, do not do much here.

Specifically, the circumferential outer wall of the piston 210 is fixedly sleeved with a rubber sealing ring, and the surface of the rubber sealing ring is in relative sliding connection with the circumferential inner wall of the circulation cylinder 206, so that the sealing performance is increased.

Specifically, one end of the exhaust funnel 205 is communicated with the air inlet end of the cyclone dust collector 3, the bottom of the cyclone dust collector 3 is movably connected with the collecting unit 103, the air outlet end of the cyclone dust collector 3 is connected with a 7-shaped pipe 4, one end of the 7-shaped pipe 4 is connected with a heating box 5, a Z-shaped pipe 6 is fixedly installed inside the heating box 5, and one end of the Z-shaped pipe 6 is connected with a desulfurization box 7, so that the device is complete in function.

Specifically, a single chip microcomputer is fixedly mounted on the top of the circulation cylinder 206, the motor 703 is fixedly mounted on one side of the circulation cylinder 206, an output shaft of the motor 703 penetrates through the surface of the circulation cylinder 206 and is connected with the fixing pin 208, and all electrical components in the device are controlled by the single chip microcomputer, so that the device can suck exhaust gas into the inside of the U-shaped pipe 201.

Specifically, a fixing pin 208 is fixedly installed at one side of the flywheel 207, and two rotating shafts 209 are movably sleeved on the surface of the fixing pin 208, so that the rotating shafts 209 can normally rotate.

Specifically, the surface of the wiper plate 706 is in contact with the inner wall of the desulfurization tank 7, and the drain pipe 710 is located at the bottom of one side of the desulfurization tank 7, so that the device can remove scale.

In the utility model, waste gas generated by dry quenching is connected to the port of the air inlet cylinder 202, the axial flow fan 203 and the electromagnetic control valve 204 which are positioned in the air inlet cylinder 202 are controlled by the singlechip to be opened until a certain amount of air is injected into the gravity dust collector body 1, the electromagnetic control valve 204 in the air inlet cylinder 202 is closed, the electromagnetic control valve 204 in the exhaust cylinder 205 is always in a closed state at the moment, the motor 703 on the circulating cylinder 206 starts to work, the motor 703 drives the flywheel 207 to rotate, the flywheel 207 drives the two pistons 210 to move simultaneously, the two pistons 210 are respectively positioned at the two ends of the circulating cylinder 206, the two moving pistons 210 can push the waste gas in the gravity dust collector body 1 to pass through the dust-collecting baffle 101 for multiple times, so that the effect of multiple dust collection is achieved, the dust collection rate of one time is higher, and the load of the cyclone dust collector 3 in the secondary dust collection of the next procedure is reduced, indirectly prolongs the service life of the cyclone dust collector 3, reduces the economic loss of a factory, the waste gas after multiple dust removal comes out from the circulating cylinder 206, the electric heating wire 501 is heated, thereby increasing the reaction rate of the subsequent sulfur-containing gas and the chemical agent, the chemical agent for reacting with the sulfur-containing gas is added at the adding nozzle 701, such as limestone water, the inert gas recycling pipe 702 is used for recycling the gas, a control switch of a motor 703 on the desulfurization box 7 is turned on, the motor 703 drives a stirring blade 705 to rotate, not only can the reaction area of the chemical agent and the sulfur dioxide in the waste gas be increased, the reaction is more thorough, meanwhile, the rotating stirring blade 705 drives a scraping brush plate 706 to ceaselessly hang and brush the inner wall of the desulfurization box 7, the scale generated in the chemical reaction is prevented from being accumulated in the desulfurization box 7, and the time and labor cost for manually cleaning the inside of the desulfurization box 7 are greatly reduced, time and labor are saved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The dry quenching waste gas dedusting and desulfurizing device comprises a gravity dust collector body (1), wherein the gas outlet end of the gravity dust collector body (1) is connected with a cyclone dust collector (3), the gas outlet end of the cyclone dust collector (3) is connected with a desulfurizing box (7), and the dry quenching waste gas dedusting and desulfurizing device is characterized in that a circulating dedusting mechanism (2) is arranged at the top of the gravity dust collector body (1), the circulating dedusting mechanism (2) comprises U-shaped pipes (201), the number of the U-shaped pipes (201) is two, the two U-shaped pipes (201) are respectively connected with the gas inlet end and the gas outlet end of the gravity dust collector body (1), one side of one U-shaped pipe (201) is provided with a gas inlet pipe (202) in a penetrating manner, an axial flow fan (203) is arranged inside the gas inlet pipe (202), and an electromagnetic control valve (204) is fixedly arranged at one end of the gas inlet pipe (202) close to the U-shaped pipe (201), an exhaust funnel (205) penetrates through one side of the other U-shaped pipe (201), the internal structures of the exhaust funnel (205) and the air inlet funnel (202) are completely the same, a circulating cylinder (206) is jointly installed between the two U-shaped pipes (201), a flywheel (207) is rotatably installed inside the circulating cylinder (206), two rotating shafts (209) are rotatably connected to one side of the flywheel (207), and pistons (210) are movably connected to one ends of the two rotating shafts (209).

2. The dry quenching exhaust gas dedusting and desulfurizing device according to claim 1, wherein an adding nozzle (701) and an inert gas recovery pipe (702) are installed at the top of the desulfurizing box (7) in a penetrating manner, a motor (703) is fixedly installed on the top surface of the desulfurizing box (7), the output end of the motor (703) penetrates the top of the desulfurizing box (7), a stirring shaft (704) is fixedly connected to the bottom end of the output end of the motor (703), a stirring blade (705) is fixedly connected to the surface of the stirring shaft (704), a scraping and brushing plate (706) is fixedly installed on one side of the stirring blade (705), a mounting hole (707) is formed in the middle of the stirring blade (705) in a penetrating manner, a rotating shaft (708) is fixedly installed between the upper side and the lower side of the mounting hole (707), and an auxiliary stirring blade (709) is fixedly connected to the outer circumferential wall of the rotating shaft (708), and a sewage discharge pipeline (710) is arranged on one side of the desulfurization box (7) in a penetrating manner, and a mechanical control valve is arranged on the sewage discharge pipeline (710).

3. The dry quenching exhaust gas dedusting and desulfurizing device according to claim 1, wherein a dedusting baffle (101) is fixedly installed inside the gravity dust collector body (1), a pressure regulating valve (102) is installed at the top of the gravity dust collector body (1) in a penetrating manner, and a collecting unit (103) is movably connected to the bottom of the gravity dust collector body (1).

4. The dry quenching exhaust gas dedusting and desulfurizing device as claimed in claim 1, wherein a rubber sealing ring is fixedly sleeved on the outer circumferential wall of the piston (210), and the surface of the rubber sealing ring is in relative sliding connection with the inner circumferential wall of the circulating cylinder (206).

5. The dry quenching exhaust gas dedusting and desulfurizing device according to claim 3, characterized in that one end of the exhaust funnel (205) is communicated with the air inlet end of the cyclone dust collector (3), the bottom of the cyclone dust collector (3) is movably connected with a collecting unit (103), the air outlet end of the cyclone dust collector (3) is connected with a 7-shaped pipe (4), one end of the 7-shaped pipe (4) is connected with a heating box (5), a Z-shaped pipe (6) is fixedly installed in the heating box (5), and one end of the Z-shaped pipe (6) is connected with the desulfurizing box (7).

6. The dry quenching exhaust gas dedusting and desulfurizing device as claimed in claim 1, wherein a single chip microcomputer is fixedly installed on the top of the circulating cylinder (206), a motor (703) is fixedly installed on one side of the circulating cylinder (206), and an output shaft of the motor (703) penetrates through the surface of the circulating cylinder (206) and is connected with the fixing pin (208).

7. The dry quenching exhaust gas dedusting and desulfurizing device according to claim 6, wherein a fixing pin (208) is fixedly installed on one side of the flywheel (207), and the two rotating shafts (209) are movably sleeved on the surface of the fixing pin (208).

8. The dry quenching exhaust gas dedusting and desulfurizing device according to claim 2, wherein the surface of the wiper plate (706) is in contact with the inner wall of the desulfurizing tank (7), and the blow-off pipe (710) is located at the bottom of one side of the desulfurizing tank (7).