CN210340964U - Safety explosion venting device for iron-making blast furnace - Google Patents

Abstract

A safety explosion venting device for an iron-making blast furnace comprises an explosion-proof box, a first mounting plate, a plurality of first fixing rods and a second mounting plate; the inner part of the explosion-proof box is divided into an air inlet bin and an air outlet bin by a partition plate arranged in the explosion-proof box; the partition board is provided with a first through hole; the exhaust bin is provided with a second through hole communicated with the outside; the air inlet bin is provided with a sealing cover at the end face of the explosion-proof box provided with the opening and is communicated with the interior of the dust remover; a vertical first mounting hole is formed in the first mounting plate, and a piston and a conical column are arranged on the first mounting plate; the piston is inserted into the first through hole in a matched and sliding manner; the first fixing rods respectively penetrate through the first mounting holes and are connected with the bottom surface of the first groove, the first fixing rods are connected with the second mounting plate, and the outer sides of the first fixing rods are respectively sleeved with the first springs; the explosion-proof box is provided with an explosion-proof plate for sealing the second through hole; initially, the explosion proof plate and the tapered column are not in contact with each other. The utility model can effectively prevent the dust remover of the iron-making blast furnace from being exploded, and avoid the damage of the dust remover.

Description

Safety explosion venting device for iron-making blast furnace

Technical Field

The utility model relates to an explosion-proof safe technical field especially relates to a be used for iron-making blast furnace safety to let out and explode device.

Background

Blast furnace smelting is a continuous production process, and the whole process is completed in the mutual contact process of furnace burden from top to bottom and coal gas from bottom to top; charging furnace burden into the furnace from the furnace top according to a certain batch, blowing hot air heated to 1000-plus-1300 ℃ from a tuyere, burning coke in the furnace burden in front of the tuyere to generate high-temperature and reducing gas, heating the furnace burden which slowly descends in the ascending process in the furnace, and reducing oxides in iron ore into metallic iron; in the process of iron making in an iron making blast furnace, a large amount of coal gas can be generated in a furnace cylinder due to the combustion of coke; gas such as coal gas enters the dust remover through the flow guide pipe for dust removal and is stored, so that the pressure inside the dust remover is enhanced; when the pressure in the dust remover is too high, the dust remover can be damaged, and equipment needs to be stopped for maintenance after the dust remover is damaged, so that the metal smelting efficiency is greatly reduced; therefore, the application provides a safe explosion venting device for the iron-making blast furnace.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

In order to solve the technical problems existing in the background technology, the utility model provides a safe explosion venting device for an iron-making blast furnace, which can exhaust and release the pressure inside a dust remover when the pressure inside the dust remover is too high so as to avoid the damage of the dust remover; in addition, the alarm can give an alarm to remind workers to exhaust and release the air in the dust remover.

(II) technical scheme

The utility model provides a safe explosion venting device for an iron-making blast furnace, which comprises a sealing cover, an explosion-proof box, a first mounting plate, a plurality of first fixed rods, a second mounting plate and an explosion-proof plate;

a second groove is formed in one end face of the explosion-proof box, and a partition plate is arranged in the explosion-proof box; the partition plate is used for dividing the interior of the explosion-proof box into an air inlet bin and an air outlet bin, and a first groove is formed in the end face, located in the air outlet bin, of the partition plate; the bottom surface of the first groove is provided with a first through hole for connecting the air inlet bin and the air outlet bin; the bottom surface of the second groove is provided with a second through hole for communicating the exhaust bin with the external environment;

the air inlet bin is provided with an opening on the other end surface of the explosion-proof box; the sealing cover is arranged at one end of the opening formed in the explosion-proof box, and an air inlet hole used for being communicated with the interior of the dust remover is formed in the sealing cover;

a vertical first mounting hole is formed in the first mounting plate, a piston is arranged at one end of the first mounting plate, and conical columns are uniformly arranged at the other end of the first mounting plate; wherein, the piston is inserted into the first through hole in a sliding way in a matching way; the tip parts of the plurality of conical columns extend into the second through holes;

one end of each first fixing rod penetrates through the first mounting hole and is connected with the bottom surface of the first groove, the first fixing rods are connected with the first mounting plate in a sliding mode, the other ends of the first fixing rods are connected with the second mounting plate, and first springs are sleeved on the outer sides of the first fixing rods respectively; two ends of the first springs are respectively connected with the bottom surface of the first groove and the second mounting plate;

the explosion-proof plate is arranged in the second groove, and the bottom surface of the second groove is pressed by the end surface of the explosion-proof plate, which is in contact with the second groove; initially, the explosion proof plate and the plurality of tapered posts are not in contact with each other.

Preferably, a plurality of fixing plates are included; a plurality of fixed plates all set up on explosion-proof case, are equipped with the second mounting hole on a plurality of fixed plates respectively.

Preferably, vertical third mounting holes are uniformly formed in the explosion-proof plate; fastening pieces are arranged in the third mounting holes respectively; vertical threaded blind holes are uniformly formed in the bottom surface of the second groove;

and the plurality of fastening pieces are screwed into the third mounting hole and the threaded blind hole in sequence respectively.

Preferably, a sealing gasket is arranged on the end face of the explosion-proof plate pressed against the second groove.

Preferably, the device comprises a plurality of second fixing rods, a limiting block, a protection plate, a plurality of second springs and a plurality of third springs; wherein, the guard plate is uniformly provided with fourth mounting holes;

the second fixing rods are vertically arranged on the end face of the explosion-proof box, are circumferentially distributed by taking the center of the second groove as a circle center, and penetrate through the fourth mounting holes respectively and are connected with the limiting blocks; the fixing rods, the fourth mounting holes and the limiting blocks are arranged in a one-to-one correspondence manner;

the plurality of second springs are respectively sleeved outside the second fixing rods; two ends of the second spring are respectively connected with the limiting block and the protection plate;

the plurality of third springs are respectively sleeved outside the second fixed rod; wherein, the terminal surface and the guard plate of explosion-proof case are connected respectively to the both ends of third spring.

Preferably, the explosion-proof tank is of a cylindrical structure, wherein the explosion-proof tank is in threaded connection with the sealing cover.

Preferably, the device comprises a power supply and an alarm; the end face, facing the conical column, of the explosion-proof plate is provided with a first conducting layer and a second conducting layer; the first conducting layer and the second conducting layer are symmetrically arranged on the central axis of the explosion-proof plate; the first conductive layer and the second conductive layer are not in contact with each other; the plurality of conical columns are connected in series through the conducting wires;

the alarm, the power supply, the first conducting layer and the second conducting layer are sequentially connected in series to form an alarm circuit; during operation, the first conducting layer and the second conducting layer are respectively pressed by the conical columns, the first conducting layer and the second conducting layer are electrically connected in series, and the alarm circuit is electrified to operate.

The above technical scheme of the utility model has following profitable technological effect:

in the utility model, when in use, gas such as coal gas generated in the iron-making process of the iron-making blast furnace enters the air inlet bin through the air inlet hole, the air inlet bin is communicated with the interior of the dust remover, and the pressure intensity in the air inlet bin is increased along with the increase of the gas pressure intensity in the dust remover; under the action of gas pressure, the piston slides in the first through hole towards the exhaust bin, the first springs are all pressed to deform, and the conical columns are all gradually contacted with the explosion-proof plate and tightly pressed; when the pressure in the dust remover is too high, the explosion-proof plate is burst by the plurality of conical columns, and the air inlet bin is communicated with the air outlet bin to release the pressure in the dust remover, so that the dust remover is prevented from being damaged;

in addition, the protection plate is arranged to protect the impact generated after the explosion of the explosion-proof plate, so that the injury to the personal safety of people caused by four-shot chippings and the like is avoided; in addition, the second spring and the third spring are arranged to buffer the impact on the protection plate, so that the service life of the protection plate is prolonged; still when the alarm that sets up compresses tightly at toper post and first conducting strip and second conducting strip, report to the police in order to remind the staff to carry out the pressure release of exhausting to dust remover inside.

Drawings

Fig. 1 is a schematic structural view of a safety explosion venting device for an iron-making blast furnace provided by the utility model.

Fig. 2 is a schematic structural diagram of a part a of the safety explosion venting device for the iron-making blast furnace according to the present invention.

Fig. 3 is a schematic structural diagram of a B-position local amplification in the safety explosion venting device of the iron-making blast furnace.

Fig. 4 is a top view of a middle partition plate of a safety explosion venting device for an iron-making blast furnace, which is provided by the utility model.

Reference numerals: 1. a sealing cover; 2. an explosion-proof box; 3. an air inlet; 4. a fixing plate; 5. a second mounting hole; 6. an alarm; 7. a partition plate; 8. a first groove; 9. a first through hole; 10. a piston; 11. a first mounting plate; 12. a first fixing lever; 13. a first spring; 14. a second mounting plate; 15. a tapered post; 16. a second through hole; 17. a second groove; 18. an explosion-proof plate; 19. a tightening piece; 20. a first conductive layer; 21. a gasket; 22. a limiting block; 23. a protection plate; 24. a second spring; 25. a third spring; 26. an air inlet bin; 27. an exhaust bin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-4, the safety explosion venting device for iron-making blast furnace provided by the utility model comprises a sealing cover 1, an explosion-proof box 2, a first mounting plate 11, a plurality of first fixing rods 12, a second mounting plate 14 and an explosion-proof plate 18;

a second groove 17 is formed in one end face of the explosion-proof box 2, and a partition plate 7 is arranged in the explosion-proof box 2; the partition plate 7 is used for dividing the interior of the explosion-proof box 2 into an air inlet bin 26 and an air outlet bin 27, and a first groove 8 is formed in the end face, located in the air outlet bin 27, of the partition plate 7; the bottom surface of the first groove 8 is provided with a first through hole 9 for connecting the air inlet bin 26 and the air outlet bin 27; wherein, the bottom surface of the second groove 17 is provided with a second through hole 16 for communicating the exhaust bin 27 with the external environment;

the air inlet bin 26 is provided with an opening on the other end surface of the explosion-proof box 2; wherein, the sealing cover 1 is arranged at one end of the opening arranged on the explosion-proof box 2, and the sealing cover 1 is provided with an air inlet 3 used for being communicated with the interior of the dust remover; in the process of iron making of the iron-making blast furnace, because of the combustion of coke, a large amount of coal gas can be generated in the hearth, the coal gas and other gases enter the dust remover through the guide pipe for dust removal and storage, and the coal gas and other gases enter the air inlet bin 26 through the air inlet 3;

a vertical first mounting hole is formed in the first mounting plate 11, a piston 10 is arranged at one end of the first mounting plate 11, and conical columns 15 are uniformly and vertically arranged at the other end of the first mounting plate 11; wherein, the piston 10 is inserted into the first through hole 9 in a matching and sliding manner; the tip parts of the plurality of conical columns 15 extend into the second through holes 16, the plurality of conical columns 15 are made of conductive metal materials, and the tip parts of the plurality of conical columns 15 face one end far away from the first mounting plate 11;

one end of each of the first fixing rods 12 penetrates through the first mounting hole and is connected with the bottom surface of the first groove 8, the first fixing rods 12 are connected with the first mounting plate 11 in a sliding mode, the other end of each of the first fixing rods 12 is connected with the second mounting plate 14, and the outer sides of the first fixing rods 12 are respectively sleeved with the first springs 13; two ends of the first springs 13 are respectively connected with the bottom surface of the first groove 8 and the second mounting plate 14;

the explosion-proof plate 18 is arranged in the second groove 17, and the bottom surface of the second groove 17 is pressed by the end surface of the explosion-proof plate 18, which is in contact with the second groove 17; initially, the explosion proof plate 18 and the plurality of tapered columns 15 are not in contact with each other.

In the utility model, when in use, gas such as coal gas generated in the iron-making process of the iron-making blast furnace enters the air inlet bin 26 through the air inlet 3, the air inlet bin 26 is communicated with the interior of the dust remover, and the pressure intensity in the air inlet bin 26 is increased along with the increase of the gas pressure intensity in the dust remover; under the action of gas pressure, the piston 10 slides in the first through hole 9 towards the exhaust bin 27, the first springs 13 are all deformed under pressure, and the conical columns 15 are all gradually contacted with and tightly pressed against the explosion-proof plate 18; when the pressure in the dust remover is too high, the explosion-proof plate 18 is burst by the conical columns 15, and the air inlet bin 26 is communicated with the air outlet bin 27 to release the pressure in the dust remover, so that the damage to the dust remover is avoided.

In an alternative embodiment, a plurality of fixing plates 4 are included; the fixing plates 4 are all arranged on the explosion-proof box 2, and the fixing plates 4 are respectively provided with a second mounting hole 5; the fixed plate 4 is arranged to prevent explosion and install the explosion-proof box 2; and the explosion-proof box 2 is installed on the dust remover by matching the bolts with the second installation holes 5.

In an alternative embodiment, vertical third mounting holes are uniformly formed in the explosion-proof plate 18; fastening pieces 19 are respectively arranged in the third mounting holes; wherein, the bottom surface of the second groove 17 is uniformly provided with vertical threaded blind holes;

the plurality of fastening pieces 19 are screwed into the third mounting hole and the threaded blind hole in sequence; the installation and replacement of the explosion-proof panel 18 is facilitated by the provision of a plurality of fasteners 19.

In an alternative embodiment, a sealing gasket 21 is arranged on the end face of the explosion-proof plate 18 pressed against the second groove 17; the sealing gasket 21 is arranged to improve the sealing performance of the contact end face of the explosion-proof plate 18 and the bottom surface of the second groove 17.

In an alternative embodiment, a plurality of second fixing rods, a limiting block 22, a protection plate 23, a plurality of second springs 24 and a plurality of third springs 25 are included; wherein, the guard plate 23 is uniformly provided with fourth mounting holes;

the plurality of second fixing rods are vertically arranged on the end face of the explosion-proof box 2, are circumferentially distributed by taking the center of the second groove 17 as a circle center, and penetrate through the fourth mounting hole and are connected with the limiting block 22; the fixed rod is connected with the protection plate 23 in a sliding mode, and the fixed rod, the fourth mounting hole and the limiting block 22 are arranged in a one-to-one correspondence mode;

the plurality of second springs 24 are respectively sleeved outside the second fixing rods; wherein, two ends of the second spring 24 are respectively connected with the limiting block 22 and the protection plate 23;

the plurality of third springs 25 are respectively sleeved outside the second fixing rods; wherein, two ends of the third spring 25 are respectively connected with the end surface of the explosion-proof box 2 and the protection plate 23;

the protection plate 23 is arranged to protect the impact generated after the explosion of the explosion-proof plate 18, so that the injury to the personal safety of people caused by four-shot chippings and the like is avoided; in addition, the second spring 24 and the third spring 25 are arranged to buffer the impact on the protection plate 23, so as to prolong the service life of the protection plate 23.

In an alternative embodiment, the explosion proof tank 2 is of cylindrical configuration, wherein the explosion proof tank 2 is screwed to the sealing cap 1.

In an alternative embodiment, a power supply and alarm 6 is included; wherein, the end face of the explosion-proof plate 18 facing the conical column 15 is provided with a first conductive layer 20 and a second conductive layer; the first conductive layer 20 and the second conductive layer are symmetrically arranged along the central axis of the explosion-proof plate 18; the first conductive layer 20 and the second conductive layer are not in contact with each other; the plurality of conical columns 15 are connected in series through a lead;

the alarm 6, the power supply, the first conducting layer 20 and the second conducting layer are sequentially connected in series to form an alarm circuit; during operation, a plurality of toper posts 15 compress tightly first conducting layer 20 and second conducting layer respectively, and first conducting layer 20 and second conducting layer electrical property are established ties, and alarm circuit circular telegram operation, alarm 6 report to the police and remind to remind the staff to need carry out the pressure release of exhausting to the dust remover.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (7)

1. A safe explosion venting device for an iron-making blast furnace is characterized by comprising a sealing cover (1), an explosion venting box (2), a first mounting plate (11), a plurality of first fixing rods (12), a second mounting plate (14) and an explosion venting plate (18);

a second groove (17) is formed in one end face of the explosion-proof box (2), and a partition plate (7) is arranged in the explosion-proof box (2); the partition plate (7) is used for dividing the interior of the explosion-proof box (2) into an air inlet bin (26) and an air outlet bin (27), and a first groove (8) is formed in the end face, located in the air outlet bin (27), of the partition plate (7); the bottom surface of the first groove (8) is provided with a first through hole (9) for connecting the air inlet bin (26) and the air outlet bin (27); wherein, the bottom surface of the second groove (17) is provided with a second through hole (16) for communicating the exhaust bin (27) with the external environment;

the air inlet bin (26) is provided with an opening on the other end surface of the explosion-proof box (2); wherein, the sealing cover (1) is arranged at one end of the opening arranged on the explosion-proof box (2), and the sealing cover (1) is provided with an air inlet (3) used for being communicated with the interior of the dust remover;

a vertical first mounting hole is formed in the first mounting plate (11), a piston (10) is arranged at one end of the first mounting plate (11), and conical columns (15) are uniformly arranged at the other end of the first mounting plate (11); wherein, the piston (10) is inserted into the first through hole (9) in a matching and sliding manner; the tip parts of the conical columns (15) extend into the second through holes (16);

one end of each first fixing rod (12) penetrates through the first mounting hole and is connected with the bottom surface of the first groove (8), each first fixing rod (12) is connected with the first mounting plate (11) in a sliding mode, the other end of each first fixing rod (12) is connected with the second mounting plate (14), and the outer side of each first fixing rod (12) is sleeved with the first spring (13) respectively; two ends of the first springs (13) are respectively connected with the bottom surface of the first groove (8) and the second mounting plate (14); the explosion-proof plate (18) is arranged in the second groove (17), and the bottom surface of the second groove (17) is pressed by the end surface of the explosion-proof plate (18) contacted with the second groove (17); initially, the explosion-proof plate (18) and the plurality of tapered columns (15) are not in contact with each other.

2. A safety explosion venting device for an iron making blast furnace according to claim 1, characterized by comprising a plurality of fixing plates (4); a plurality of fixed plates (4) all set up on explosion-proof case (2), are equipped with second mounting hole (5) on a plurality of fixed plates (4) respectively.

3. The safety explosion venting device for the iron-making blast furnace as claimed in claim 1, wherein the explosion-proof plate (18) is uniformly provided with vertical third mounting holes; fastening pieces (19) are respectively arranged in the third mounting holes; vertical threaded blind holes are uniformly formed in the bottom surface of the second groove (17);

and a plurality of fastening pieces (19) are screwed into the third mounting hole and the threaded blind hole in sequence respectively.

4. The safety explosion venting device for the iron making blast furnace as claimed in claim 1, wherein a sealing gasket (21) is arranged on the end surface of the explosion-proof plate (18) pressed against the second groove (17).

5. The safety explosion venting device for the iron making blast furnace as claimed in claim 1, which comprises a plurality of second fixing rods, a limiting block (22), a protection plate (23), a plurality of second springs (24) and a plurality of third springs (25); wherein, the protection plate (23) is uniformly provided with fourth mounting holes;

the second fixing rods are vertically arranged on the end face of the explosion-proof box (2), are circumferentially distributed by taking the center of the second groove (17) as a circle center, and penetrate through the fourth mounting hole and are connected with the limiting block (22); the fixing rods, the fourth mounting holes and the limiting blocks (22) are arranged in a one-to-one correspondence manner;

a plurality of second springs (24) are respectively sleeved outside the second fixing rods; wherein, two ends of the second spring (24) are respectively connected with a limiting block (22) and a protection plate (23);

a plurality of third springs (25) are respectively sleeved outside the second fixed rod; wherein, the two ends of the third spring (25) are respectively connected with the end surface of the explosion-proof box (2) and the protection plate (23).

6. A safety explosion venting device for an iron making blast furnace according to claim 1, wherein the explosion proof tank (2) is of a cylindrical structure, wherein the explosion proof tank (2) is in threaded connection with the sealing cover (1).

7. A safety explosion venting device for an iron making blast furnace according to claim 1, characterized by comprising a power supply and an alarm (6); wherein, the end surface of the explosion-proof plate (18) facing the conical column (15) is provided with a first conducting layer (20) and a second conducting layer; the first conducting layer (20) and the second conducting layer are symmetrically arranged on the central axis of the explosion-proof plate (18); the first conductive layer (20) and the second conductive layer are not in contact with each other; the plurality of conical columns (15) are connected in series through leads;

the alarm (6), the power supply, the first conducting layer (20) and the second conducting layer are sequentially connected in series to form an alarm circuit; during operation, the first conducting layer (20) and the second conducting layer are respectively pressed by the conical columns (15), the first conducting layer (20) and the second conducting layer are electrically connected in series, and the alarm circuit is electrified to operate.

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