CN215757151U - Furnace column applied to heat recovery coke oven - Google Patents

Abstract

The utility model belongs to the field of heat recovery coke oven masonry, and particularly relates to a fire column applied to a heat recovery coke oven, which is a vertical frame structure and is characterized by comprising a frame body, adjusting spring assemblies, an upper brace connecting device and a lower brace connecting device, wherein the upper brace connecting device is arranged at the top of the frame body; the frame body is formed by connecting the middle of two H-shaped steels with equal heights with a plurality of double-angle steel cross beams, the adjusting spring assembly comprises an adjusting spring and a screw rod, the adjusting spring faces to the outer side of the frame body, and the screw rod faces to the inner side of the frame body. The utility model has the advantages that: 1) the upper cross brace is separated from the high-temperature furnace end, so that the spring and the brace are prevented from being damaged by high temperature; 2) the lower cross brace can better protect the thermal expansion force on the lower part of the coke oven; 3) the environmental protection level of the coke oven is improved; the service life of the coke oven is prolonged.

Description

Furnace column applied to heat recovery coke oven

Technical Field

The utility model belongs to the field of heat recovery coke oven masonry, and particularly relates to an oven post applied to a heat recovery coke oven.

Background

In the coking production process of the coke oven, expansion force is generated due to high temperature and acts on the oven wall, so that the coke oven generates transverse stress, longitudinal stress and vertical stress. Because the furnace wall is built by refractory bricks, the furnace wall is easy to damage due to low stress bearing capacity. In order to protect the coke oven from being damaged, a protection plate is fastened at the furnace end of the oven wall, an oven column is arranged on the outer side of the protection plate, and the oven column is used for transmitting the pressure of the upper and lower braces to the oven wall through the protection plate and applying oven protection pressure to the coke side direction of the oven wall. Under the action of furnace protection equipment such as furnace columns, protection plates and braces, the coke oven is protected from being damaged. The furnace column is a main structure in the production of the coke oven, and the curvature of the furnace column and the tonnage of the spring must be measured periodically and monthly so as to know the stress of the furnace column and the expansion condition of the furnace body in time, thereby taking effective measures to protect the furnace body.

At present, a traditional coke oven column generally comprises H-shaped steel or I-shaped steel, a spring seat, an adjusting bolt, a spring cover and the like. It has the problems that: because the upper part of the outer side of the furnace column is provided with the components such as the spring for fixing the cross brace, the components are positioned at the furnace end and are easy to generate high-temperature creep and damage under the action of high-temperature baking and high-temperature raw coke oven gas escaping from the carbonization chamber; in addition, a large amount of dust is generated at the furnace end for long-term coal charging and coke pushing and is adsorbed on the spring, so that the spring is corroded; generally, the spring is provided with a spring sleeve to prevent dust from attaching, and the side effect is that the pulling force of the spring cannot be normally adjusted, so that the curvature adjustment of the furnace column is influenced, and the furnace wall cannot be reliably protected.

Disclosure of Invention

The utility model aims to provide a furnace column applied to a heat recovery coke oven, which overcomes the defects of the prior art, adopts a novel furnace column structure, and connects an upper cross brace with a groove box arranged at the top end of the furnace column, thereby avoiding high-temperature smoke from damaging a brace spring and a brace; the springs on the oven post are convenient to adjust, so that the oven post keeps better expansion curvature, the thermal expansion force on the lower part of the coke oven is better balanced, the environmental protection grade of the coke oven is improved, and the service life of the coke oven is prolonged.

In order to realize the technical purpose of the utility model, the technical scheme adopted by the utility model is as follows:

a furnace column applied to a heat recovery coke oven is of a vertical frame structure and is characterized by comprising a frame body, an adjusting spring assembly, an upper brace connecting device and a lower brace connecting device; the upper brace connecting device is arranged at the top of the frame body; the lower pull strip connecting device is arranged at the bottom of the frame body; the adjusting spring assemblies are arranged at the middle section of the frame body, and the number of the adjusting spring assemblies is a plurality; the frame body is formed by connecting the middle of two H-shaped steels with equal height and a plurality of double-angle steel beams, an upper sealing plate is arranged at the top end of the frame body, a base plate is arranged at the bottom end of the frame body, a space between two wing plates and a web plate of the H-shaped steel is filled with a plurality of rib plates, and joints at the peripheries of the rib plates are firmly welded; the outer side of the frame body is provided with an outer reinforcing plate, the inner side of the frame body is provided with an upper inner reinforcing plate made of a heat-resistant steel plate, the lower side of the upper inner reinforcing plate is provided with a lower inner reinforcing plate made of a heat-resistant steel plate, and the upper inner reinforcing plate is provided with mounting holes matched with the upper protective plate and the lower protective plate; the upper brace connecting device is arranged on the inner side of the top of the frame body, and the lower brace connecting device is arranged on the outer side of the lower part of the frame body; the adjusting spring assembly comprises an adjusting spring and a screw rod, the adjusting spring is arranged on the outward side of the frame body, and the screw rod is arranged on the inward side of the frame body.

Furthermore, the specification of the H-shaped steel is HN400 multiplied by 200mm, and the specification of the angle steel for the double-angle steel cross beam is 75 multiplied by 5 mm.

Furthermore, the base plate is made of a steel plate with the thickness of more than 20mm, two strip holes are formed in the base plate, and the base plate is connected with the buried bolt through a base pressing plate and a nut during installation.

Further, the height of the frame body is 5700-6300 mm, the region with the length of 1000-1600 mm below the upper bracing strip connecting device is an upper protection plate mounting region, the region with the length of 2100-2700 mm below the upper protection plate mounting region is a lower protection plate mounting region, the thickness of the upper inner reinforcing plate is not less than 10mm, and the thickness of the lower inner reinforcing plate is not less than 20 mm.

Furthermore, 2 groups of adjusting spring assemblies are arranged in an upper protection board mounting area, 6 groups of adjusting spring assemblies are arranged in a lower protection board mounting area, one adjusting spring assembly is arranged at each of 4600-5100 mm and 4200-4700 mm of height in the upper protection board mounting area, and one adjusting spring assembly is arranged at each of 3700-4200 mm, 3300-3800 mm, 3000-3500 mm, 2400-2900 mm, 2000-2500 mm and 1900-2400 mm of height in the lower protection board mounting area.

Furthermore, a furnace door lock pad is arranged at the position, corresponding to the height of the furnace door crank, on the frame body.

Furthermore, including end pad, adjusting spring, middle pad, adjusting nut, lead screw and ending the position pad in the adjusting spring subassembly, end pad and frame body outside pterygoid lamina fixed connection, end position pad and frame body inside pterygoid lamina fixed connection, be equipped with adjusting spring between end pad and the middle pad, lead screw one end is passed middle pad and is arranged in adjusting spring, the lead screw other end passes ends position pad and stove post H shaped steel, the top pushes up on the protection shield, adjusting nut locates on the lead screw between middle pad and ending the position pad, rotatory adjusting nut can make adjusting spring's length change, give frame body a reverse deformation's power.

Further, including groove box, last spring holder, brace spring, spring tray and brace nut in the brace connecting device, the groove box is an open frame that comprises preceding arm-tie, back arm-tie, last arm-tie and lower arm-tie, and the centre trompil is gone up to the preceding arm-tie, and the back arm-tie is connected with the stove post, and during the installation, the brace nut is connected with the brace tip that passes preceding arm-tie, spring holder, brace spring and spring tray.

Furthermore, the lower brace connecting device comprises a lower spring seat, a combined spring, a lower spring tray and a lower brace nut, the lower spring seat is connected with the furnace column, the combined spring is arranged between the lower spring seat and the lower spring tray, the lower brace nut is connected with the end part of the lower brace penetrating through the lower spring tray, the combined spring and the lower spring seat during installation, and the spring is an inner-outer combined compression spring group.

Furthermore, three cross beam through holes are formed in the frame body.

Compared with the prior art, the utility model has the beneficial effects that: 1) the upper cross brace is connected with a groove box arranged at the top end of the furnace column and is pulled away from the high-temperature furnace end, so that the damage to the spring and the brace caused by the direct action of high-temperature flue gas, coal powder and coke powder during coking, coal charging and coke pushing is avoided; 2) a plurality of spring seats on the oven column are convenient to adjust, so that the oven column keeps better expansion curvature and better balances thermal expansion force applied to the lower part of the coke oven; 3) the oven post, the cross beam and the protection plate can better protect the coke oven under the action of the brace; 4) the furnace column and the cross beam form a plane frame structure, so that the deformation of the furnace body is smaller, the sealing effect of the furnace door is good, and the vehicle-mounted dust removal can effectively absorb high-temperature flue gas escaped from the carbonization chamber when the furnace door is taken off; 5) the lower cross brace can better protect the thermal expansion force on the lower part of the coke oven; 6) when the coke oven is built, the temperature cannot be lower than 5 ℃, construction needs to be carried out in a proper environment, so that the oven columns are installed before building, and the oven columns are used as supporting legs of the coke oven building shed, so that the material and the construction time are saved; 7) the furnace column can be used as a flue gas pipeline truss at the top of the coke oven to support a flue gas pipeline; 8) after improvement, the environmental protection level of the coke oven is improved; the service life of the coke oven is prolonged; the device has the characteristics of simple structure, easy manufacture, easy installation and easy replacement, saves the manufacturing, installation, maintenance and replacement costs, improves the economic benefits of enterprises and the like.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;

in the figure:

1-a frame body;

2-adjusting spring component, 201-end pad, 202-adjusting spring, 203-middle pad, 204-adjusting nut, 205-screw rod, 206-stop pad;

3-upper brace connecting device, 301-groove box, 3011-front pull plate, 3012-rear pull plate, 3013-upper pull plate, 3014-lower pull plate, 302-upper spring seat, 303-upper brace spring, 304-upper spring tray-, 305-upper brace nut;

4-lower tie bar connecting device, 401-lower spring seat, 402-combined spring, 403-lower spring tray, 404-lower tie bar nut;

5-H-shaped steel, 6-double-angle steel beam, 7-upper sealing plate, 8-base plate, 9-base pressure plate, 10-rib plate, 11-outer reinforcing plate, 12-upper inner reinforcing plate, 13-upper protective plate, 14-lower protective plate, 15-lower inner reinforcing plate, 16-base bolt, 17-furnace door lock pad, 18-beam, 19-steel pipe, 20-upper brace and 21-lower brace.

Detailed Description

The technical solution of the present invention is further illustrated by the following examples:

in the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, which are schematic structural views of an embodiment of a furnace column applied to a heat recovery coke oven, the vertical frame structure of the furnace column comprises a frame body 1, an adjusting spring assembly 2, an upper brace connecting device 3 and a lower brace connecting device 4; the adjusting spring assemblies 2 are arranged at the middle section of the frame body 1, and the number of the adjusting spring assemblies is a plurality; the upper brace connecting device 3 is arranged on the inner side of the top of the frame body 1; the lower pull strip connecting device 4 is arranged at the outer side of the bottom of the frame body 1.

The frame body 1 is formed by connecting the middle of two H-shaped steels 5 with equal height and a plurality of double-angle steel cross beams 6, an upper sealing plate 7 is arranged at the top end of the frame body 1, a base plate 8 is arranged at the bottom end of the frame body, the space between two wing plates and a web plate of the H-shaped steel 5 is filled with a plurality of rib plates 10, and joints at the periphery of the rib plates 10 are firmly welded; an outer reinforcing plate 11 is arranged on the outer side of the frame body 1, an upper inner reinforcing plate 12 is arranged on the inner side of the frame body, and mounting holes matched with an upper protective plate 13 and a lower protective plate 14 are formed in the upper inner reinforcing plate 12; a lower inner reinforcing plate 15 is arranged at the lower side of the upper inner reinforcing plate 12; the specification of the H-shaped steel 5 is HN400 multiplied by 200, and the specification of angle steel for the double-angle steel crossbeam 6 is less than 75 multiplied by 5; the base anchor 8 is made of a steel plate with the thickness of 20mm, is provided with two strip holes, and is connected with an anchor bolt 16 through an anchor pressure plate 9 and a nut during installation.

The height of the frame body 1 is 5906mm, the area within 1270mm of the length below the upper brace connecting device 3 is an upper protection plate mounting area, and the area within 2370mm of the length below the upper protection plate mounting area is a lower protection plate mounting area. The lower part of the upper protection plate and the whole lower protection plate area are provided with an upper inner reinforcing plate 12 made of heat-resistant steel, the upper inner reinforcing plate 12 corresponds to a high-temperature area of the coke oven, the thickness of the upper inner reinforcing plate is 10mm, and the thickness of the lower inner reinforcing plate 15 is 20 mm.

A furnace door lock pad 17 is arranged at the position, corresponding to the height of the furnace door crank, on the frame body 1, the inner side of each H-shaped steel 5 is welded, and the welding position is determined according to the height of the furnace door crank.

The adjusting spring assemblies 2 are arranged in 2 groups in the mounting area of the upper protection plate 13, the mounting area of the lower protection plate 14 is arranged in 6 groups, the adjusting spring assemblies 2 are respectively arranged at the positions with the heights of 4844mm and 4412mm in the mounting area of the upper protection plate 13, and the adjusting spring assemblies 2 are respectively arranged at the positions with the heights of 3980mm, 3548mm, 3258mm, 2684mm, 2252mm and 2142mm in the mounting area of the lower protection plate 14.

The adjusting spring assembly 2 comprises an end pad 201, an adjusting spring 202, a middle pad 203, an adjusting nut 204, a screw rod 205 and a stop pad 206, the end pad 201 is fixedly connected with a wing plate on the outer side of the frame body 1, the stop pad 206 is fixedly connected with a wing plate on the inner side of the frame body 1, the adjusting spring 204 is arranged between the end pad 201 and the middle pad 203, one end of the screw rod 205 penetrates through the middle pad 203 and extends into the adjusting spring 202, the other end of the screw rod 205 penetrates through the stop pad 206 and the top end of the H-shaped steel of the furnace column to be propped against the protection plate, the adjusting nut 204 is arranged on the screw rod 205 between the middle pad 203 and the stop pad 206, and the adjusting nut 204 is rotated to change the length of the adjusting spring 202 and provide a reverse deformation force for the frame body 1 to correct the deformation of the furnace column.

The upper brace connecting device 3 comprises a groove box 301, an upper spring seat 302, an upper brace spring 303, an upper spring tray 304 and an upper brace nut 305. The cell 301 is an open frame composed of a front pull plate 3011, a back pull plate 3012, an upper pull plate 3013 and a lower pull plate 3014, the front pull plate 3011 is provided with a hole in the middle, the back pull plate 3012 is connected with the furnace column 1, the tail end of the upper pull bar 20 passes through the front pull plate 3011, the upper spring seat 302, the upper pull bar spring 303 and the upper spring tray 304 and is fixed in the cell through an upper pull bar nut 305.

The lower brace connecting device 4 comprises a lower spring seat 401, a combined spring 402, a lower spring tray 403 and a lower brace nut 404. The end part of the lower brace 21 passes through the H-shaped steel 5, the lower spring seat 401, the combined spring 402 and the lower spring tray 403 and is fixed at the lower part of the furnace column through a lower brace nut 404, and the combined spring 401 is an inner and outer combined compression spring set. The wire diameter ratio of the outer spring to the inner spring is 9: 5. The steel pipe 19 is arranged at the penetrating position of the lower stay 21 and the furnace column, and the lower stay 21 penetrates through the steel pipe 19, so that on one hand, the abrasion of the lower stay can be prevented, and on the other hand, the integral strength of the furnace column can be increased.

Three groups of cross beam through holes are formed in the frame body 1, the cross beams 18 penetrate through the cross beam through holes and are connected with the frame body 1, and the coke oven can be better protected by the oven columns, the cross beams and the protection plates under the action of the upper and lower braces; the furnace column and the cross beam form a plane frame structure, so that the deformation of the furnace body is smaller, the sealing effect of the furnace door is good, and the vehicle-mounted dust removal can effectively absorb high-temperature flue gas escaped from the carbonization chamber when the furnace door is taken down.

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 able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof.

Claims (10)

1. A furnace column applied to a heat recovery coke oven is of a vertical frame structure and is characterized by comprising a frame body, an adjusting spring assembly, an upper brace connecting device and a lower brace connecting device; the upper brace connecting device is arranged at the top of the frame body; the lower pull strip connecting device is arranged at the bottom of the frame body; the adjusting spring assemblies are arranged at the middle section of the frame body, and the number of the adjusting spring assemblies is a plurality; the frame body is formed by connecting the middle of two H-shaped steels with equal height and a plurality of double-angle steel beams, an upper sealing plate is arranged at the top end of the frame body, a base plate is arranged at the bottom end of the frame body, a space between two wing plates and a web plate of the H-shaped steel is filled with a plurality of rib plates, and joints at the peripheries of the rib plates are firmly welded; the outer side of the frame body is provided with an outer reinforcing plate, the inner side of the frame body is provided with an upper inner reinforcing plate made of a heat-resistant steel plate, the lower side of the upper inner reinforcing plate is provided with a lower inner reinforcing plate made of a heat-resistant steel plate, and the upper inner reinforcing plate is provided with mounting holes matched with the upper protective plate and the lower protective plate; the upper brace connecting device is arranged on the inner side of the top of the frame body, and the lower brace connecting device is arranged on the outer side of the lower part of the frame body; the adjusting spring assembly comprises an adjusting spring and a screw rod, the adjusting spring is arranged on the outward side of the frame body, and the screw rod is arranged on the inward side of the frame body.

2. The oven column applied to the heat recovery coke oven as claimed in claim 1, wherein the specification of the H-shaped steel is HN400 x 200mm, and the specification of the angle steel for the double angle steel beam is 75 x 5 mm.

3. The oven column applied to the heat recovery coke oven of claim 1, wherein the base plate is made of a steel plate with the thickness of more than 20mm, two long holes are formed in the base plate, and the base plate is connected with the buried bolt through a ground pressure plate and a nut during installation.

4. The oven column applied to the heat recovery coke oven as claimed in claim 1, wherein the height of the frame body is 5700-6300 mm, the region with the length of 1000-1600 mm below the upper brace connecting device is an upper protection plate mounting region, the region with the length of 2100-2700 mm below the upper protection plate mounting region is a lower protection plate mounting region, the thickness of the upper inner reinforcing plate is not less than 10mm, and the thickness of the lower inner reinforcing plate is not less than 20 mm.

5. The oven column applied to the heat recovery coke oven as claimed in claim 4, wherein the adjusting spring assemblies are arranged in 2 groups in the upper protection plate mounting area, 6 groups in the lower protection plate mounting area, one adjusting spring assembly is arranged in the upper protection plate mounting area at the position of 4600-5100 mm and 4200-4700 mm respectively, and one adjusting spring assembly is arranged in the lower protection plate mounting area at the positions of 3700-4200 mm, 3300-3800 mm, 3000-3500 mm, 2400-2900 mm, 2000-2500 mm and 1900-2400 mm respectively.

6. The oven column applied to the heat recovery coke oven as claimed in claim 1, wherein an oven door lock pad is arranged on the frame body corresponding to the height of the oven door crank.

7. The fire column of claim 1, wherein the adjusting spring assembly comprises an end pad, an adjusting spring, an intermediate pad, an adjusting nut, a lead screw and a stop pad, the end pad is fixedly connected to the outer side wing plate of the frame body, the stop pad is fixedly connected to the inner side wing plate of the frame body, the adjusting spring is disposed between the end pad and the intermediate pad, one end of the lead screw passes through the intermediate pad and is disposed in the adjusting spring, the other end of the lead screw passes through the stop pad and the H-shaped steel of the fire column, the top end of the lead screw abuts against the protective plate, the adjusting nut is disposed on the lead screw between the intermediate pad and the stop pad, and the adjusting nut is rotated to change the length of the adjusting spring and apply a reverse deformation force to the frame body.

8. The oven post applied to the heat recovery coke oven of claim 1, wherein the upper brace connecting device comprises a groove box, an upper spring seat, an upper brace spring, an upper spring tray and an upper brace nut, the groove box is an open frame consisting of a front pull plate, a rear pull plate, an upper pull plate and a lower pull plate, the front pull plate is provided with a middle opening, the rear pull plate is connected with the oven post, and the upper brace nut is connected with the end part of the upper brace passing through the front pull plate, the upper spring seat, the upper brace spring and the upper spring tray during installation.

9. The oven post applied to the heat recovery coke oven of claim 1, wherein the lower pulling strip connecting device comprises a lower spring seat, a combined spring, a lower spring tray and a lower pulling strip nut, the lower spring seat is connected with the oven post, the combined spring is arranged between the lower spring seat and the lower spring tray, the lower pulling strip nut is connected with the end part of the lower pulling strip penetrating through the lower spring tray, the combined spring and the lower spring seat during installation, and the spring is an internal and external combined compression spring set.

10. The oven column applied to the heat recovery coke oven as claimed in claim 1, wherein three beam through holes are opened on the frame body.

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