CN216857488U

CN216857488U - Blast furnace tuyere peephole debris cleaning device

Info

Publication number: CN216857488U
Application number: CN202220248066.2U
Authority: CN
Inventors: 胡亚涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-02
Filing date: 2022-02-02
Publication date: 2022-07-01
Anticipated expiration: 2032-02-02

Abstract

The utility model provides a blast furnace tuyere peephole sundry cleaning device. The blast furnace tuyere peephole sundries cleaning device comprises a bottom plate; the furnace body is fixedly arranged at the top of the bottom plate; the L-shaped plate is placed on the top of the bottom plate in a sliding mode; the two brackets are fixedly arranged on the inner wall of the bottom of the L-shaped plate; the cover pipes are fixedly arranged on the tops of the two brackets; and any one positioning and locking mechanism comprises a fixing pile, a first screw rod, a rectangular positioning groove and a positioning block. The blast furnace tuyere peephole sundries cleaning device provided by the utility model has the advantages that under the condition that the blast furnace is not stopped, peephole sundries can be cleaned safely and laborsavingly, and the high yield of the blast furnace is effectively ensured.

Description

Blast furnace tuyere peephole debris cleaning device

Technical Field

The utility model relates to the technical field of blast furnace maintenance auxiliary equipment, in particular to a blast furnace tuyere peephole sundry cleaning device.

Background

The blast furnace tuyere is usually installed in a furnace wall between a furnace belly and a furnace bottom, the front section extends into the furnace, the blast furnace tuyere is directly corroded by heat of liquid slag iron and seriously abraded by falling hot materials, the blast furnace tuyere is easy to lose efficacy, the blast furnace is stopped due to frequent replacement of the tuyere, the low yield of the blast furnace is caused, and the peephole is important equipment which is indispensable and used for monitoring the insertion depth of a coal injection gun, the uniformity of injected coal powder and the condition of the blast furnace in a coal powder injection system of a blast furnace air supply branch pipe. The observation of the blast furnace tuyere through the peep hole in front of the blast furnace can timely adjust the pulverized coal injection amount, effectively control the pulverized coal combustion rate, and the observation of the pulverized coal injection combustion condition at the tuyere is influenced and must be timely cleaned because sundries such as coke blocks are accumulated due to the change of the blast furnace condition of a pipeline at the front part of the blast furnace tuyere peep hole.

However, in the prior art, the impurities in the peephole of the blast furnace tuyere are generally cleaned in the following two ways, a tamping rod is manually and forcibly cleaned without blowing down, a ball valve on the tuyere is closed, a peephole cap is removed, and a solid rod such as round steel is directly inserted into the tuyere, so that high yield can be guaranteed, but sparks are easily ejected from a gap between the tuyere and the tamping rod in the cleaning process, the difference between the internal pressure and the external pressure is large, the pushing of the tamping rod is difficult, and a large potential safety hazard exists; the cleaning after damping down especially affects the blast furnace output.

Therefore, there is a need to provide a new blast furnace tuyere peephole sundries cleaning device to solve the above technical problems.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the blast furnace tuyere peephole sundry cleaning device which can safely and laborsavingly clean up peephole sundries under the condition that a blast furnace is not stopped, and effectively ensure high yield of the blast furnace.

In order to solve the technical problem, the blast furnace tuyere peephole sundries cleaning device provided by the utility model comprises: a base plate; the furnace body is fixedly arranged at the top of the bottom plate; the L-shaped plate is placed on the top of the bottom plate in a sliding mode; the two brackets are fixedly arranged on the inner wall of the bottom of the L-shaped plate; the cover pipes are fixedly arranged on the tops of the two brackets; the positioning and locking mechanisms are arranged on the bottom plate and the L-shaped plate, any one of the positioning and locking mechanisms comprises a fixing pile, a first screw rod, a rectangular positioning groove and a positioning block, the fixing pile is fixedly arranged at the top of the bottom plate, the first screw rod is arranged on the fixing pile in a threaded mode, the rectangular positioning groove is formed in the outer wall of one side of the L-shaped plate, the positioning block is rotatably sleeved at one end of the first screw rod, the positioning block is matched with the rectangular positioning groove, and the outer wall of one side of the positioning block extends into the rectangular positioning groove; and the safe blockage clearing mechanism is arranged on the cover pipe.

Preferably, the safe blockage clearing mechanism comprises a reinforcing plate, an inner screwed pipe, a limiting sliding plate, a second screw, a motor, a fulcrum shaft, a first bevel gear and a second bevel gear, the reinforcing plate is fixedly arranged in the cover pipe, the inner spiral pipe is rotatably arranged on the inner wall of one side of the cover pipe, the inner spiral pipe penetrates through the reinforcing plate and is rotationally connected with the reinforcing plate, the limiting sliding plate is slidably arranged in the cover pipe, the second screw rod is rotationally arranged in the inner spiral pipe, the second screw penetrates through the limiting sliding plate and is fixedly connected with the limiting sliding plate, the motor is fixedly arranged at the top of the cover tube, the fulcrum shaft is rotatably arranged on the cover pipe, the first bevel gear is fixedly arranged at the bottom end of the fulcrum shaft, the second conical teeth are fixedly sleeved on the inner screw pipe, and the first conical teeth are meshed with the second conical teeth.

Preferably, fixed mounting has a plurality of locating plates on the outer wall of one side of furnace body, and is a plurality of annular positioning groove has all been seted up on the outer wall of one side of locating plate, and is a plurality of equal fixed mounting has sealed the pad in the annular positioning groove, just the one end of cover pipe extends to corresponding in the annular positioning groove and with corresponding one side outer wall of sealed pad contacts.

Preferably, fixed mounting has a plurality of tuber pipes on the furnace body, and is a plurality of all install electronic ball valve on the tuber pipe, it is a plurality of the tuber pipe is located the equal fixed mounting of the outer one end of furnace body has first flange, and is a plurality of first flange all has the second flange through a plurality of bolt fixed mounting, and is a plurality of equal fixed seal installs the peep hole on the inner race of second flange.

Preferably, the first screw rod is far away from the equal fixed mounting of one end of L template has the runner, slidable mounting has a plurality of slide bars of injecing on the spud pile, and is a plurality of the one end of injecing the slide bar all with one side outer wall fixed connection of locating piece.

Preferably, a third bevel gear is fixedly mounted on an output shaft of the motor, a fourth bevel gear is fixedly mounted at a top end of the support shaft, and the third bevel gear is meshed with the fourth bevel gear.

Preferably, two limiting sliding grooves are fixedly installed in the cover pipe, and the top and the bottom of the limiting sliding plate are respectively in sliding connection with the inner walls of the two limiting sliding grooves.

Compared with the prior art, the blast furnace tuyere peephole sundries cleaning device provided by the utility model has the following beneficial effects:

through the mutual matching of the L-shaped plate, the cover pipe, the first screw rod, the positioning block, the reinforcing plate, the inner screw pipe, the limiting sliding plate, the second screw rod, the motor, the fulcrum shaft, the first bevel gear, the second bevel gear, the positioning plate, the electric ball valve and the like, the safe plugging of the air port can be realized under the condition that the blast furnace is not in a standstill by rotating the ball body on the electric ball valve by ninety degrees, then the peeping mirror is detached, the L-shaped plate is pushed, one end of the cover pipe is aligned to the annular positioning groove on the positioning plate, the positioning block is driven to be inserted into the rectangular positioning groove by rotating the first screw rod, the positioning and the abutting are completed, the electric ball valve is reset again, the high temperature in the furnace is covered by the cover pipe, the second screw rod is finally driven to do linear motion under the limitation of the limiting sliding plate until sundries in the air port are smashed and fall into the furnace body, and after the cleaning is completed, the electric ball valve is enabled to continue to rotate ninety degrees, the air port is blocked, the first screw rod is reversely rotated in the same way, the safe blockage clearing mechanism is thoroughly moved, the peeping lens is screwed and installed on the air pipe in the same way, the combustion condition of the furnace body can be normally observed through the peeping lens, and therefore under the condition that the blast furnace is not stopped, the peeping hole sundries are safely and laborsavingly cleared up, the high yield of the blast furnace is effectively guaranteed, the peeping hole sundries are cleared up in a labor-saving manner, and the high yield of the blast furnace is effectively guaranteed.

Drawings

Fig. 1 is a schematic front sectional view illustrating a preferred embodiment of a blast furnace tuyere peep hole impurity cleaning device according to the present invention;

FIG. 2 is an enlarged view of the portion A shown in FIG. 1;

FIG. 3 is an enlarged view of the portion B shown in FIG. 1;

fig. 4 is an enlarged schematic view of the portion C shown in fig. 1.

Reference numbers in the figures: 1. a base plate; 2. a furnace body; 3. an L-shaped plate; 4. a bracket; 5. a cover tube; 6. fixing the pile; 7. a first screw; 8. a rectangular positioning groove; 9. positioning blocks; 10. a reinforcing plate; 11. an inner solenoid; 12. a limiting sliding plate; 13. a second screw; 14. a motor; 15. a fulcrum; 16. a first bevel gear; 17. a second taper tooth; 18. positioning a plate; 19. an air duct; 20. an electric ball valve; 21. a sight glass.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic front sectional view illustrating a preferred embodiment of a blast furnace tuyere peephole sundries cleaning device provided by the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is an enlarged view of the portion B shown in FIG. 1; fig. 4 is an enlarged schematic view of the portion C shown in fig. 1. Blast furnace tuyere peephole debris cleaning device includes: a base plate 1; the furnace body 2 is fixedly arranged at the top of the bottom plate 1; the L-shaped plate 3 is placed on the top of the bottom plate 1 in a sliding mode; the two brackets 4 are fixedly arranged on the inner wall of the bottom of the L-shaped plate 3; the cover pipes 5 are fixedly arranged at the tops of the two brackets 4, and the cover pipes 5 are convenient for installing blockage clearing components and can prevent high temperature in the furnace from leaking out during subsequent blockage clearing; a plurality of positioning and locking mechanisms which are all arranged on the bottom plate 1 and the L-shaped plate 3, any one of the positioning and locking mechanisms comprises a fixed pile 6, a first screw 7, a rectangular positioning groove 8 and a positioning block 9, the fixing pile 6 is fixedly arranged at the top of the bottom plate 1, the first screw 7 is arranged on the fixing pile 6 in a threaded manner, the rectangular positioning groove 8 is arranged on the outer wall of one side of the L-shaped plate 3, the positioning block 9 is rotatably sleeved at one end of the first screw rod 7, the positioning block 9 is matched with the rectangular positioning groove 8, the first screw 7 is rotated to drive the positioning block 9 to be inserted into the rectangular positioning groove 8, positioning is completed and the L-shaped plate 3 is tightly abutted, so that when the subsequent cover pipe 5 covers high temperature in the furnace, due to the difference between the internal pressure and the external pressure, the cover pipe 5 is flushed, so that subsequent safe and complete blockage clearing cannot be realized, and the outer wall of one side of the positioning block 9 extends into the rectangular positioning groove 8; and the safe blockage clearing mechanism is arranged on the cover pipe 5.

In order to safely and conveniently smash sundries into the furnace body 2 when the peephole needs to be cleared, the safe clearing mechanism comprises a reinforcing plate 10, an inner solenoid 11, a limiting sliding plate 12, a second screw 13, a motor 14, a support shaft 15, a first bevel gear 16 and a second bevel gear 17, the reinforcing plate 10 is fixedly installed in the cover tube 5, the reinforcing plate 10 plays a role of enabling the inner solenoid 11 to rotate more stably, the inner solenoid 11 is rotatably installed on the inner wall of one side of the cover tube 5, the inner solenoid 11 penetrates through the reinforcing plate 10 and is rotatably connected with the reinforcing plate 10, the limiting sliding plate 12 is slidably installed in the cover tube 5, the second screw 13 is rotatably installed in the inner solenoid 11, the second screw 13 penetrates through the limiting sliding plate 12 and is fixedly connected with the limiting sliding plate 12, the motor 14 is fixedly installed at the top of the cover tube 5, the supporting shaft 15 is rotatably installed on the cover pipe 5, the first bevel gear 16 is fixedly installed at the bottom end of the supporting shaft 15, the second bevel gear 17 is fixedly sleeved on the inner screw pipe 11, the first bevel gear 16 is meshed with the second bevel gear 17, the first bevel gear 16 rotates to drive the second bevel gear 17 to rotate, the second bevel gear 17 drives the inner screw pipe 11 to rotate, and finally the inner screw pipe 11 rotates to drive the second screw 13 limited by the limiting sliding plate 12 to linearly move so as to clear the blockage of the air port.

In order to facilitate accurate positioning of the cover tube 5 to the tuyere and in order to facilitate accurate blockage clearing of the tuyere by the subsequent second screw 13, high temperature inside the furnace can be effectively prevented from leaking, a plurality of positioning plates 18 are fixedly mounted on the outer wall of one side of the furnace body 2, annular positioning grooves are formed in the outer wall of one side of the plurality of positioning plates 18, sealing gaskets are fixedly mounted in the annular positioning grooves, and one end of the cover tube 5 extends into the corresponding annular positioning groove and contacts with the outer wall of one side of the corresponding sealing gasket.

In order to realize can convenient and safely shutoff wind gap, when being convenient for follow-up clear stifled, dismouting peep hole 21 safely, fixed mounting has a plurality of tuber pipes 19 on the furnace body 2, and is a plurality of all install electric ball valve 20 on the tuber pipe 19, adopt among the prior art good electric ball valve 20 of high temperature resistance ability, a plurality of tuber pipe 19 is located the equal fixed mounting of the outer one end of furnace body 2 has first flange, and is a plurality of first flange all has the second flange through a plurality of bolt fixed mounting, and is a plurality of equal fixed seal installs peep hole 21 on the inner circle of second flange.

In order to rotate the first screw 7 conveniently, the positioning block 9 is kept to move stably and in a collimation manner, positioning is convenient and accurate, the first screw 7 is far away from one end of the L-shaped plate 3 is fixedly provided with a rotating wheel, the fixing pile 6 is provided with a plurality of limiting sliding rods in a sliding manner, and one ends of the limiting sliding rods are fixedly connected with the outer wall of one side of the positioning block 9.

In order to facilitate the stable installation of the motor 14 and realize the change of the steering direction, a third bevel gear is fixedly installed on an output shaft of the motor 14, a fourth bevel gear is fixedly installed at the top end of the fulcrum shaft 15, and the third bevel gear is meshed with the fourth bevel gear.

In order to limit the stroke of the second screw 13 and facilitate the repeated cleaning of the positive and negative rotation of the output shaft of the subsequent control motor 14, two limiting sliding grooves are fixedly installed in the cover tube 5, and the top and the bottom of the limiting sliding plate 12 are respectively connected with the inner walls of the two limiting sliding grooves in a sliding manner.

The working principle of the blast furnace tuyere peephole sundries cleaning device provided by the utility model is as follows:

when the blast furnace tuyere peep hole is blocked by sundries, the observation of the combustion condition of the coal injection in the furnace can not be carried out through the peep mirror 21, in order to ensure high yield and under the condition that the blast furnace is not stopped, the prior high-temperature resistant electric ball valve 20 is started, the ball body on the electric ball valve 20 is rotated by ninety degrees, so that the tuyere is safely blocked, then the screw cap on the peep mirror 21 is rotated away, the peep mirror 21 is detached, the L-shaped plate 3 is pushed till one end of the cover pipe 5 is aligned with the annular positioning groove on the positioning plate 18, the positioning block 9 is driven to be inserted into the rectangular positioning groove 8 by rotating the first screw 7, the positioning and the tight abutting are completed, one end of the second screw 13 is aligned with the tuyere at the moment, the electric ball valve 20 is reset again, the ventilation is realized, the high temperature in the furnace is covered by the cover pipe 5, the overflow can not occur, the output shaft of the vertical horse starting motor 14 rotates to drive the third conical tooth to rotate, the fourth conical tooth is driven to rotate, the fourth bevel gear rotates to drive the fulcrum shaft 15 to rotate, the fulcrum shaft 15 rotates to drive the first bevel gear 16 to rotate, the first bevel gear 16 rotates to drive the second bevel gear 17 to rotate, the second bevel gear 17 rotates to drive the inner screw tube 11 to rotate, the inner screw tube 11 rotates to drive and is in threaded connection with the second screw 13, the linear motion is carried out under the limitation of the limiting sliding plate 12 until sundries in the tuyere are smashed into the furnace body 2, the output shaft of the motor 14 rotates forwards and backwards through the stroke limitation of the limiting sliding plate 12, after the repeated cleaning is carried out for a plurality of times, the electric ball valve 20 continues to rotate for ninety degrees, the tuyere is blocked, the first screw 7 is reversely rotated in the same way, the safe blockage cleaning mechanism is thoroughly removed, the peep lens 21 is screwed and installed on the air pipe 19 in the same way, the combustion condition of the furnace body 2 can be normally observed through the peep lens 21, the sundries in the peep hole can be cleaned safely and laborsavingly under the condition that the blast furnace is not stopped, effectively ensuring the high yield of the blast furnace.

through the mutual matching of the L-shaped plate 3, the cover tube 5, the first screw 7, the positioning block 9, the reinforcing plate 10, the inner screw tube 11, the limiting sliding plate 12, the second screw 13, the motor 14, the fulcrum shaft 15, the first bevel gear 16, the second bevel gear 17, the positioning plate 18, the electric ball valve 20 and the like, under the condition that the blast furnace is not in a rest state, the tuyere can be safely blocked by rotating a ball body on the electric ball valve 20 by ninety degrees, then the peeping mirror 21 is detached to push the L-shaped plate 3 until one end of the cover tube 5 is aligned with the annular positioning groove on the positioning plate 18, the positioning block 9 is driven to be inserted into the rectangular positioning groove 8 by rotating the first screw 7, the positioning and the abutting are completed, the electric ball valve 20 is reset again, the high temperature in the furnace is covered by the cover tube 5, the output shaft of the motor 14 is started to rotate, the second screw 13 is finally driven to do linear motion under the limitation of the limiting sliding plate 12, until sundries in the air port are smashed into the furnace body 2, after cleaning is finished, the electric ball valve 20 is made to continue rotating for ninety degrees, the air port is sealed, the first screw 7 is reversely rotated in the same way, the safe blockage cleaning mechanism is thoroughly removed, the sight glass 21 is screwed and installed on the air pipe 19 in the same way, the combustion condition of the furnace body 2 can be normally observed through the sight glass 21, and therefore under the condition that the blast furnace is not stopped, the sight hole sundries are cleaned safely and laborsavingly, the high-yield safety of the blast furnace is effectively guaranteed, the sight hole sundries are cleaned up in a labor-saving mode, and the high yield of the blast furnace is effectively guaranteed.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a blast furnace tuyere peephole debris cleaning device which characterized in that includes:

a base plate;

the furnace body is fixedly arranged at the top of the bottom plate;

the L-shaped plate is placed on the top of the bottom plate in a sliding mode;

the two brackets are fixedly arranged on the inner wall of the bottom of the L-shaped plate;

the cover pipes are fixedly arranged on the tops of the two brackets;

the positioning and locking mechanisms are arranged on the bottom plate and the L-shaped plate, any one of the positioning and locking mechanisms comprises a fixing pile, a first screw rod, a rectangular positioning groove and a positioning block, the fixing pile is fixedly arranged at the top of the bottom plate, the first screw rod is arranged on the fixing pile in a threaded mode, the rectangular positioning groove is formed in the outer wall of one side of the L-shaped plate, the positioning block is rotatably sleeved at one end of the first screw rod, the positioning block is matched with the rectangular positioning groove, and the outer wall of one side of the positioning block extends into the rectangular positioning groove;

and the safe blockage clearing mechanism is arranged on the cover pipe.

2. The blast furnace tuyere peep hole sundries cleaning device according to claim 1, characterized in that the safety blockage cleaning mechanism comprises a reinforcing plate, an inner screwed pipe, a limiting sliding plate, a second screw, a motor, a fulcrum shaft, a first bevel gear and a second bevel gear, the reinforcing plate is fixedly arranged in the cover pipe, the inner screwed pipe is rotatably arranged on the inner wall of one side of the cover pipe, the inner screwed pipe penetrates through the reinforcing plate and is rotatably connected with the reinforcing plate, the limiting sliding plate is slidably arranged in the cover pipe, the second screw is rotatably arranged in the inner screwed pipe, the second screw penetrates through the limiting sliding plate and is fixedly connected with the limiting sliding plate, the motor is fixedly arranged at the top of the cover pipe, the fulcrum shaft is rotatably arranged on the cover pipe, the first bevel gear is fixedly arranged at the bottom end of the fulcrum shaft, and the second bevel gear is fixedly sleeved on the inner screwed pipe, and the first bevel gear is meshed with the second bevel gear.

3. The blast furnace tuyere peephole sundry cleaning device according to claim 1, characterized in that a plurality of positioning plates are fixedly installed on an outer wall of one side of the furnace body, annular positioning grooves are formed on outer walls of one sides of the plurality of positioning plates, sealing gaskets are fixedly installed in the plurality of annular positioning grooves, and one end of each cover pipe extends into the corresponding annular positioning groove and contacts with an outer wall of one side of the corresponding sealing gasket.

4. The blast furnace tuyere peephole sundry cleaning device according to claim 1, characterized in that a plurality of air pipes are fixedly installed on the furnace body, electric ball valves are installed on the plurality of air pipes, first connecting flanges are fixedly installed at one ends of the plurality of air pipes located outside the furnace body, second connecting flanges are fixedly installed on the plurality of first connecting flanges through a plurality of bolts, and peepholes are fixedly and hermetically installed on inner rings of the plurality of second connecting flanges.

5. The blast furnace tuyere peephole impurity cleaning device according to claim 1, wherein rotating wheels are fixedly mounted at one ends of the first screws far away from the L-shaped plates, a plurality of limiting sliding rods are slidably mounted on the fixing piles, and one ends of the limiting sliding rods are fixedly connected with the outer wall of one side of the positioning block.

6. The blast furnace tuyere peep hole impurity cleaning device according to claim 2, characterized in that a third bevel gear is fixedly installed on an output shaft of the motor, a fourth bevel gear is fixedly installed on a top end of the fulcrum shaft, and the third bevel gear is meshed with the fourth bevel gear.

7. The blast furnace tuyere peephole sundry cleaning device according to claim 2, characterized in that two limiting chutes are fixedly arranged in the cover pipe, and the top and the bottom of the limiting slide plate are respectively connected with the inner walls of the two limiting chutes in a sliding manner.