Blast furnace compression auxiliary device

Abstract

The utility model discloses a blast furnace compression auxiliary device, and relates to the technical field of blast furnace gas pressure stabilizing devices. The pressure stabilizing device comprises an air inlet pipe, a pressure stabilizing pipe and an exhaust pipe, the exhaust pipe is arranged on one side of the air inlet pipe, the pressure stabilizing pipe is arranged between the air inlet pipe and the exhaust pipe, a partition plate is arranged in the pressure stabilizing pipe, and a buffer plate is arranged on one side of the partition plate. The buffer plate, the movable plug, the reset spring and the damping rod are arranged to play a role in buffering gas entering the pressure stabilizing pipe, and fluctuation caused by impact on a pipeline due to large energy contained in the gas is avoided, that is, after the gas enters the pressure stabilizing pipe from the gas inlet pipe, the gas enters the pressure stabilizing pipe from the gas outlet pipe; gas impacts the conical tip end of the buffer plate so that the gas can be dispersed to the gas guide hole, impact force impacted on the buffer plate is absorbed by the buffer spring, and elastic potential energy released by the buffer spring is restrained through the damping rod in the process that the buffer spring releases the impact force.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the high pressure auxiliary device of blast furnace technical field, specifically relates to a kind of blast furnace pressure auxiliary device. BACKGROUND

[0002] There are a lot of heat in blast furnace gas, so recycling its heat energy can save energy, avoid resource waste, and create greater economic benefits. During the process of blast furnace gas recovery, the pressure fluctuation in the gas pipeline is large, which greatly affects the stability of gas delivery. Therefore, a pressure stabilizing device is generally provided in the blast furnace gas recovery pipeline system.

[0003] The existing pressure stabilizing device is in the form of an air bag, that is, there is an air bag structure larger than the pipe diameter in series at one or more places in the recovery pipeline system. When blast furnace gas enters the air bag, the space through which the gas passes suddenly increases, which can offset the pressure fluctuation effect and improve the stability of blast furnace gas delivery. However, the effect of this structure is not stable, and the effect varies greatly for different working conditions. Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a high pressure auxiliary device for blast furnace.

[0005] To solve the above technical problems, the basic idea of the technical solution of the utility model is as follows:

[0006] A high pressure auxiliary device for blast furnace includes an inlet pipe, a pressure stabilizing pipe and an exhaust pipe. The exhaust pipe is provided on one side of the inlet pipe, and the pressure stabilizing pipe is provided between the inlet pipe and the exhaust pipe. The inside of the pressure stabilizing pipe is provided with a partition plate. The partition plate is provided with a buffer plate on one side. The buffer plate is provided with a conical tip for gas buffering in the middle. The conical tip is located at the gas outlet of the inlet pipe. A plurality of gas guide holes are provided in the middle of the buffer plate. The inside of each gas guide hole is in communication with the extension pipe at the back of the buffer plate. The gas guide holes are arranged in a ring array outside the buffer plate.

[0007] A buffer spring is installed in the middle of the partition plate and the buffer plate. A damping rod is provided outside the buffer spring. The extension end of the damping rod is fixed to the side of the buffer plate. A telescopic dustproof sleeve is provided outside the buffer spring and the damping rod.

[0008] The middle part of each extension pipe is fixed with a mounting plate, a plurality of through holes for gas circulation are formed in the middle part of the mounting plate, the back part of the mounting plate is fixed with a supporting rod, the outer part of the supporting rod is movably sleeved with a sleeve block, the outer part of the supporting rod is sleeved with a reset spring, the two ends of the reset spring are respectively in contact with the inner part of the sleeve block and the tail end outer edge of the supporting rod, the side end of the sleeve block is fixed with a movable plug, and the plug-in end outer part of the movable plug is sleeved with an elastic sleeve.

[0009] Optionally, the middle part of the partition plate is provided with a cavity for placing the pull-out plate, the top of the cavity is in communication with the groove on the upper surface of the pressure stabilizing pipe, and the two sides of the partition plate are provided with air permeable holes in communication with the inside of the cavity.

[0010] Optionally, the middle part of the pull-out plate is provided with a filter screen mounting groove, the upper ends of the two sides of the pull-out plate are in contact with the bottom of the limiting strip, the two limiting strips are respectively in communication with the mounting cavities on the two sides of the groove, the inside of the two mounting cavities is provided with mounting springs, the other ends of the mounting springs are in contact with the limiting strips, the upper end of the limiting strip is fixed with a push piece, and the push piece extends to the outside of the pressure stabilizing pipe through the mounting cavities.

[0011] Optionally, the air inlet pipe and the air outlet pipe are fixed at the two ends of the pressure stabilizing pipe through fixing bolts, nuts and the pressure stabilizing pipe, the upper and lower sides of the contact ends of the air inlet pipe and the air outlet pipe outside the two ends of the pressure stabilizing pipe are fixed through semicircular limiting covers, the side part of each semicircular limiting cover is threadedly connected with a limiting bolt, and the smooth end of the side part of each limiting bolt is rotatably connected with a semicircular pressing plate through a bearing.

[0012] Optionally, the opposite surfaces of the semicircular pressing plate and the semicircular limiting cover are fixed with anti-skid strips.

[0013] Optionally, the middle part of each semicircular limiting cover is fixed with an auxiliary pad, the inside of the auxiliary pad is provided with a thin film type pressure sensor, and each thin film type pressure sensor is connected with a remote controller on the top of the semicircular limiting cover through a lead wire.

[0014] Optionally, the two ends of the pressure stabilizing pipe are fixed with butt joint extension sleeves inserted into the butt joint grooves, and the butt joint grooves are formed in the middle parts of the air inlet pipe and the air outlet pipe.

[0015] After the above technical scheme is adopted, the utility model has the following beneficial effects compared with the prior art, of course, any product implementing the utility model does not necessarily need to simultaneously achieve all the advantages described below:

[0016] 1. The utility model discloses a buffering plate, movable plug, reset spring and damping rod are set up to the gas that enters the steady pressure pipe have played the role of buffering, avoided the energy that contains in the gas is big to cause the impact of pipeline to produce fluctuation, namely after the gas from the air inlet pipe enters the steady pressure pipe, the conical tip of gas impact buffering board makes the dispersed gas to the air guide hole, and the impact force that impacts to the buffering board will use buffering spring to absorb the impact force, the process of buffering spring release impact force will through damping rod inhibit the elastic potential energy of buffering spring release, most of the impact force in the gas is unloaded at this time, secondly the gas that enters the air guide hole will be after the through -hole and is rushed to movable plug, at this time reset spring is compressed, and then the gas flows out from the gap between movable plug and extension pipe,

[0017] 2. The utility model discloses a filter screen to the fine particulate matter in the recovered blast furnace gas has played the role of filtering, avoided the situation that pipeline is blocked with too many particulate matters, and considering the effect that filter screen needs to replace regularly, pull -out plate adopts the mode that limit strip cooperates with the fixed mode of installation spring, benefit regular replacement of user, when replacing, the installation spring is compressed by the rotation of the push piece, at this time limit strip is far from pull -out plate, when pull -out plate and limit strip do not contact, can pull -out plate is detached.

[0018] 3. The utility model discloses a supplementary pad is set up to the both ends of air inlet pipe, exhaust pipe and steady pressure pipe have played the role of detecting leakproofness, namely when the pipeline butt -joint installation pipe, supplementary pad is placed in the contact end of air inlet pipe, exhaust pipe and steady pressure pipe, after installation, the film type pressure sensor will obtain pressure data, when pressure data is less than the threshold value when installing, then show that pipeline butt -joint end appears loose.

[0019] The specific implementation of the utility model will be described in further detail below in combination with the drawings. DRAWINGS

[0020] The drawings in the following description are only some embodiments, and other drawings can be obtained according to these drawings without paying creative labor for ordinary skilled in the art.

[0021] In the drawings:

[0022] Figure 1 It is the main view cross -section structure schematic diagram of the utility model;

[0023] Figure 2 It is the combination part structure diagram of semicircular limit cover in the utility model;

[0024] Figure 3 It is the part structure schematic diagram of A in Figure 1

[0025] Figure 4 It is the part structure schematic diagram of B in Figure 1 ​​

[0026] Figure 5 is Figure 1 a part structure schematic view of C part in

[0027] Figure 6 is Figure 1 a part structure schematic view of D part in

[0028] In the drawings, the components represented by each reference numeral are listed as follows:

[0029] 1, intake pipe; 2, exhaust pipe; 3, pressure stabilizing pipe; 4, partition plate; 5, buffer plate; 6, conical tip; 7, gas guide hole; 8, extension pipe; 9, buffer spring; 10, damping rod; 11, telescopic dust cover; 12, mounting plate; 13, through hole; 14, support rod; 15, sleeve block; 16, return spring; 17, movable plug; 18, elastic sleeve; 19, pull-out plate; 20, air vent; 21, filter screen; 22, limiting strip; 23, mounting spring; 24, tab; 25, fixing bolt; 26, semicircular limiting cover; 27, limiting bolt; 28, semicircular pressing plate; 29, anti-skid strip; 30, auxiliary pad; 31, thin film type pressure sensor; 32, remote controller; 33, butt joint extension sleeve; 34, sealing gasket.

[0030] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail in combination with the drawings.

[0032] Please refer to Figures 1 to 6 The utility model provides a technical scheme: a blast furnace pressure receiving auxiliary device, including intake pipe 1, pressure stabilizing pipe 3 and exhaust pipe 2, one side of intake pipe 1 is equipped with exhaust pipe 2, and pressure stabilizing pipe 3 is equipped between intake pipe 1 and exhaust pipe 2, the inside of pressure stabilizing pipe 3 is equipped with partition plate 4, one side of partition plate 4 is equipped with buffer plate 5, the middle part of buffer plate 5 is equipped with conical tip 6 for gas buffering, conical tip 6 is located at the gas outlet of intake pipe 1, and a plurality of gas guide holes 7 are vertically arranged in the middle part of buffer plate 5, and the inside of each gas guide hole 7 is communicated with extension pipe 8 at the back of buffer plate 5, and gas guide holes 7 are annularly arranged outside buffer plate 5.

[0033] Buffer spring 9 is installed in the middle part of partition plate 4 and buffer plate 5, damping rod 10 is arranged outside buffer spring 9, the telescopic end of damping rod 10 is fixed with the side of buffer plate 5, and telescopic dust cover 11 is sleeved outside buffer spring 9 and damping rod 10.

[0034] The middle part of each extension pipe 8 is fixed with a mounting plate 12, a plurality of through holes 13 for gas circulation are arranged in the middle part of the mounting plate 12, the back part of the mounting plate 12 is fixed with a supporting rod 14, the outer part of the supporting rod 14 is movably sleeved with a sleeve block 15, the outer part of the supporting rod 14 is sleeved with a reset spring 16, the two ends of the reset spring 16 are respectively in contact with the inner part of the sleeve block 15 and the tail end outer edge of the supporting rod 14, the side end of the sleeve block 15 is fixed with a movable plug 17, and the plug-in end outer part of the movable plug 17 is sleeved with an elastic sleeve 18, considering that the existing pressure stabilizing device is mostly in the form of an air bag, that is, one air bag structure larger than the pipeline caliber is connected in series at one place or multiple places of the recovery pipeline system, when the blast furnace gas enters the air bag, due to the sudden increase of the passing space of the gas, the pressure fluctuation effect can be offset, and the stability of the blast furnace gas conveying can be improved, but the effect of this structure is not stable, and the effect is greatly different for different working conditions, the buffer plate 5, the movable plug 17, the reset spring 16 and the damping rod 10 are arranged, so that the gas entering the pressure stabilizing pipe 3 is buffered, and the impact of the gas with large energy on the pipeline is avoided to generate fluctuation, that is, after the gas enters the pressure stabilizing pipe 3 from the gas inlet pipe 1, the conical tip 6 of the buffer plate 5 is impacted by the gas, so that the gas is dispersed to the gas guide hole 7, and the impact force on the buffer plate 5 is absorbed by the buffer spring 9, the process of releasing the impact force of the buffer spring 9 will inhibit the elastic potential energy released by the buffer spring 9 through the damping rod 10, at this time, most of the impact force in the gas is removed, and then the gas entering the gas guide hole 7 will flow to the movable plug 17 through the through hole 13, at this time, the reset spring 16 is compressed, and then the gas flows out from the gap between the movable plug 17 and the extension pipe 8.

[0035] The middle part of the partition plate 4 is provided with a cavity for placing the pull-out plate 19, the top of the cavity is in communication with the groove on the upper surface of the pressure stabilizing pipe 3, and the two sides of the partition plate 4 are provided with gas permeable holes 20 in communication with the inside of the cavity, the cavity is arranged to place the pull-out plate 19, and the gas can enter the inside of the exhaust pipe 2 through the gas permeable holes 20 and the cavity.

[0036] The middle part of the pull-out plate 19 is provided with a slot for installing the filter screen 21, the upper end of the pull-out plate 19 is in contact with the bottom of the limiting strip 22, the two limiting strips 22 are respectively communicated with the installation cavities on the two sides of the groove, the inside of the two installation cavities is provided with the installation spring 23, the other end of the installation spring 23 is in contact with the limiting strip 22, the upper end of the limiting strip 22 is fixed with the push piece 24, the upper end of the push piece 24 penetrates through the installation cavity and extends to the outside of the stabilizing tube 3, the filter screen 21 is arranged to filter the fine particles in the recovered blast furnace gas, and considering that the filter screen 21 needs to be replaced regularly, the pull-out plate 19 is fixed by the limiting strip 22 cooperating with the installation spring 23, which is convenient for the user to replace regularly, when replacing, the installation spring 23 is compressed by pushing the push piece 24, at this time, the limiting strip 22 is away from the pull-out plate 19, when the pull-out plate 19 is not in contact with the limiting strip 22, the pull-out plate 19 can be disassembled.

[0037] The gas inlet pipe 1 and the gas outlet pipe 2 are fixed at the two ends of the stabilizing tube 3 by the fixing bolt 25 cooperating with the nut, the upper and lower sides of the contact end of the stabilizing tube 3, the gas inlet pipe 1 and the gas outlet pipe 2 are fixed by the semicircular limiting cover 26, the side of each semicircular limiting cover 26 is threadedly connected with the limiting bolt 27, the smooth end of the side of each limiting bolt 27 is rotationally connected with the semicircular pressing plate 28 through the bearing, the semicircular limiting cover 26, the semicircular pressing plate 28 and the limiting bolt 27 are arranged to assist the fixing of the contact end of the stabilizing tube 3, the gas inlet pipe 1 and the gas outlet pipe 2, after the fixing bolt 25 is fixed, the limiting bolt 27 is tightened, the semicircular pressing plate 28 is pressed when the limiting bolt 27 is screwed in, so that the secondary fixing is completed, and the sealing performance of the stabilizing tube 3 is ensured.

[0038] The opposite surfaces of the semicircular pressing plate 28 and the semicircular limiting cover 26 are fixed with the anti-skid strips 29, the friction between the semicircular pressing plate 28, the semicircular limiting cover 26 and the stabilizing tube 3, the gas inlet pipe 1 and the gas outlet pipe 2 is increased by arranging the anti-skid strips 29.

[0039] The middle part of each semicircular limiting cover 26 is fixed with the auxiliary pad 30, the inside of the auxiliary pad 30 is provided with the film type pressure sensor 31, and each film type pressure sensor 31 is connected with the remote controller 32 at the top of the semicircular limiting cover 26 through the wire, the sealing performance of the two ends of the gas inlet pipe 1, the gas outlet pipe 2 and the stabilizing tube 3 is detected by arranging the auxiliary pad 30, that is, when the auxiliary pad 30 is placed at the contact end of the gas inlet pipe 1, the gas outlet pipe 2 and the stabilizing tube 3 during the butt joint installation of the pipelines, after the installation is completed, the film type pressure sensor 31 obtains the pressure data, when the pressure data is less than the threshold value during the installation, it indicates that the butt joint end of the pipeline is loose.

[0040] Both ends of the voltage stabilizing tube 3 are fixed with the butt joint extension sleeve 33 inserted into the butt joint groove, the butt joint groove is opened in the middle of the air inlet pipe 1 and the air outlet pipe 2, and both ends of the voltage stabilizing tube 3 are further fixed with the sealing gasket 34, the butt joint extension sleeve 33 facilitates the alignment of the contact end of the voltage stabilizing tube 3 with the air inlet pipe 1 and the air outlet pipe 2, and the sealing gasket 34 helps to improve the sealing between the air inlet pipe 1, the air outlet pipe 2 and the voltage stabilizing tube 3.

[0041] The utility model is not limited to the above-mentioned embodiment, any person should know the structural change made under the enlightenment of the utility model, any identical or similar technical scheme with the utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the technical, shape and structure part is the known technology.

Claims

1. A blast furnace pressure receiving auxiliary device comprising an air inlet pipe (1), a pressure stabilizing pipe (3) and an air outlet pipe (2), characterized in that, One side of the intake pipe (1) is provided with exhaust pipe (2), between the intake pipe (1) and exhaust pipe (2) is provided with pressure stabilizing pipe (3), the inside of pressure stabilizing pipe (3) is provided with baffle (4), one side of the baffle (4) is provided with buffer plate (5), the middle part of buffer plate (5) is provided with taper tip (6) for gas buffering, taper tip (6) is located in the air outlet of intake pipe (1), the middle part of the buffer plate (5) is provided with a plurality of gas guide hole (7), the inside of each gas guide hole (7) is communicated with the extension pipe (8) of the back of buffer plate (5), gas guide hole (7) is arranged in annular array outside buffer plate (5); The middle part of the baffle (4) and buffer plate (5) is provided with buffer spring (9), the outside of buffer spring (9) is provided with damping rod (10), the telescopic end of damping rod (10) is fixed with the side of buffer plate (5), the outside of buffer spring (9) and damping rod (10) is provided with telescopic dust cover (11); The middle part of each extension pipe (8) is fixed with mounting plate (12), a plurality of through holes (13) for gas flow are provided in the middle part of mounting plate (12), the back of mounting plate (12) is fixed with support rod (14), the outside of support rod (14) is movably sleeved with sleeve block (15), the outside of support rod (14) is provided with reset spring (16), the two ends of reset spring (16) are respectively in contact with the inside of sleeve block (15) and the tail end of support rod (14), the side end of sleeve block (15) is fixed with movable plug (17), and the outside of plug-in end of movable plug (17) is provided with elastic sleeve (18).

2. A pressurized auxiliary device for a blast furnace according to claim 1, characterized in that, The middle part of the baffle (4) is provided with a cavity for placing the pull plate (19), the top of the cavity is communicated with the groove on the upper surface of the pressure stabilizing pipe (3), and the both sides of the baffle (4) are provided with air permeable holes (20) communicated with the inside of the cavity.

3. A pressurized auxiliary device for a blast furnace according to claim 2, characterized in that, The middle part of the pull plate (19) is provided with a filter screen (21) mounting groove, the upper end of the pull plate (19) is in contact with the bottom of the limiting strip (22), and the two limiting strips (22) are respectively communicated with the mounting cavities on both sides of the groove, the inside of the two mounting cavities is provided with mounting spring (23), the other end of the mounting spring (23) is in contact with the limiting strip (22), and the upper end of the limiting strip (22) is fixed with the tab (24), the upper end of the tab (24) penetrates the mounting cavity and extends to the outside of the pressure stabilizing pipe (3).

4. A pressurized auxiliary device for a blast furnace according to claim 1, characterized in that, The intake pipe (1) and exhaust pipe (2) are fixed at both ends of the pressure stabilizing pipe (3) by fixed bolt (25) cooperating with nut, the upper and lower sides of the outside of the contact end of the pressure stabilizing pipe (3) and the intake pipe (1) and exhaust pipe (2) are fixed by semicircular limiting cover (26), and the side of each semicircular limiting cover (26) is threadedly connected with limiting bolt (27), and the smooth end of the side of each limiting bolt (27) is rotatably connected with semicircular pressing plate (28) through bearing.

5. A pressurized auxiliary device for a blast furnace according to claim 4, characterized in that, The opposite surfaces of the semicircular pressing plate (28) and the semicircular limiting cover (26) are fixed with anti-skid strips (29).

6. A pressurized auxiliary device for a blast furnace according to claim 4, characterized in that, The middle part of each semi-circular limiting cover (26) is fixed with an auxiliary pad (30), the inside of the auxiliary pad (30) is provided with a film type pressure sensor (31), and each film type pressure sensor (31) is connected with a remote controller (32) on the top of the semi-circular limiting cover (26) through a wire.

7. A pressurized auxiliary device for a blast furnace according to claim 1, characterized in that, Both ends of the voltage stabilizing tube (3) are fixed with a butt joint extension sleeve (33) which is inserted into a butt joint groove, and the butt joint groove is opened in the middle part of the air inlet pipe (1) and the air outlet pipe (2), and both ends of the voltage stabilizing tube (3) are further fixed with a sealing pad (34).

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