CN107033928B - Device, system and method for replacing coke oven column - Google Patents
Device, system and method for replacing coke oven column Download PDFInfo
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- CN107033928B CN107033928B CN201710446770.2A CN201710446770A CN107033928B CN 107033928 B CN107033928 B CN 107033928B CN 201710446770 A CN201710446770 A CN 201710446770A CN 107033928 B CN107033928 B CN 107033928B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/08—Bracing or foundation of the ovens
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention discloses a device, a system and a method for replacing a coke oven column, wherein the device comprises a fixing unit, a limiting unit and a bracket, wherein the fixing unit is used for fixing the bracket of the device; the front end of the limiting unit is provided with a furnace column limiting part which is used for limiting the moving furnace column in the process of replacing the furnace column, and the rear end of the limiting unit is movably connected with the support and used for adjusting the relative movement between the limiting unit and the support and controlling the moving speed and direction of replacing the furnace column. The system adopts the winch for hoisting, avoids pulling the inclined crane askew, and is beneficial to safe operation. And a large crane is not used, so that the cost of a mechanical shift is saved. The method is simple, convenient to operate and low in cost, and can be popularized to the replacement construction of the coke oven column of any specification.
Description
Technical Field
The invention belongs to the field of equipment maintenance tools of industrial and mining enterprises, and particularly relates to a device, a system and a method for replacing a coke oven column.
Background
The coke oven consists of a plurality of carbonization chambers and combustion chambers alternately, and each hole carbonization chamber is separated from the combustion chamber by a furnace wall. As shown in fig. 1 and 2, a protecting plate is arranged on the outer side of each furnace wall, a furnace column is arranged on the outer side of the protecting plate, and a furnace door frame is arranged between the protecting plates between the two furnace walls. In the working state of the coke oven, the outside of the oven door frame is provided with an oven door to seal the carbonization chamber.
As shown in figure 3, braces are arranged at the bottom and the top of the furnace column, and the braces always enable the furnace wall to be in a compressed state so as to prevent the bricks of the furnace wall from being loose and then the coke blocks are inlaid between brick joints.
The bending deformation of the coke oven column at the lower section of the protection plate occurs, and the bending deformation part must be replaced in time. Lifting of coke oven column replacement is generally completed by a crane, and when the coke oven column replacement is lifted by the crane, on one hand, the inclined lifting is not safe because the gas collecting tube is arranged at the top of the coke oven.
On the other hand, because of the limitation of the field around the coke oven, the crane is generally large in size and is difficult to safely and rapidly replace the oven column in a limited space, and in addition, the cost of the mode of adopting the crane is relatively large, so that the maintenance cost of the oven column is increased.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the device for replacing the coke oven column solves the problems of unsafe hoisting, low efficiency and high cost in the coke oven column replacement process in the prior art.
The invention adopts the following technical scheme for solving the technical problems:
the device for replacing the coke oven column comprises a fixing unit, a limiting unit and a bracket, wherein the fixing unit is used for fixing the bracket of the device; the front end of the limiting unit is provided with a furnace column limiting part which is used for limiting the moving furnace column in the process of replacing the furnace column, and the rear end of the limiting unit is movably connected with the support and used for adjusting the relative movement between the limiting unit and the support and controlling the moving speed and direction of replacing the furnace column.
The fixing units comprise two clamping plates and two locking screws, wherein the two clamping plates are symmetrically arranged at two ends of the bracket, each fixing unit comprises a rib plate and two clamping plates arranged at one end of the rib plate, one clamping plate is provided with the locking screw, the two clamping plates are clamped on the furnace column, and the fixing units are fixed on the furnace column by the locking screws; the limiting unit is arranged in the middle of the bracket.
The limiting unit comprises a limiting screw, a clamping plate, a connecting plate and two connecting rods, wherein two connecting rods are arranged on two sides of the limiting screw in parallel respectively, two ends of the limiting screw and the connecting rods are connected with one connecting plate respectively, the clamping plate is arranged on the connecting plates at the front ends of the limiting screw and the connecting rods, and the rear ends of the limiting screw and the connecting plates penetrate through the support and then are connected with the other connecting plate.
A guide sleeve is arranged between the connecting plate at the front end of the limit screw and is used for fixing the limit screw on the connecting plate; the support is fixedly provided with a limit nut, and the limit screw is in threaded connection with the limit nut.
A detachable connecting piece is arranged between the fixing unit and the bracket.
The connecting piece comprises connecting plates respectively arranged on the fixing unit and the bracket, and bolts arranged on the connecting plates, and the connecting plates are connected and fixed through the bolts.
In order to further solve the problems in the prior art, the invention also discloses a coke oven column replacement system, which comprises a furnace column replacement device, a furnace column lifting device, a furnace column fixing device, a furnace column dismounting device and a protection plate fixing device, wherein the furnace column lifting device is used for lifting a furnace column in the process of dismounting the furnace column; the furnace column fixing device is used for fixing furnace columns at two sides of the cutting point in the process of disassembling and assembling the furnace columns; the furnace column dismounting device is used for cutting and welding the replaced furnace column part; the furnace column replacing device is the coke oven furnace column replacing device; the protection plate fixing device is used for fixing the coke oven protection plate at the position of the furnace column to be replaced.
The furnace column hoisting device comprises a winch and a hanging beam, wherein the winch is used for lifting or lowering the replaced furnace column, and the hanging beam is used for fixing a fixed pulley of the winch in the process of replacing the furnace column.
The furnace column fixing device is at least one cross beam which is arranged at two sides of the replacement furnace column and spans across the furnace columns.
Based on the furnace column replacement system, the invention also discloses a method for replacing the furnace column of the coke furnace, which comprises the following steps:
step 6, cutting off the furnace column at the selected cutting points respectively;
step 8, removing the furnace column to be replaced, and installing the furnace column to be replaced to a replacement position according to the reverse process of the disassembly process;
and 9, sequentially dismantling all devices of the furnace column replacement system to complete furnace column replacement.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the winch for hoisting, avoids the inclined hoisting, and is beneficial to safe operation.
2. And a large crane is not used, so that the cost of a mechanical shift is saved.
3. The materials for manufacturing the hanging beam and the special tool are very common, and the hanging beam and the special tool are purchased randomly in the market (the material is Q235 steel without heat treatment), so that the cost is further saved and the working efficiency is improved.
4. Fork truck, hoist engine, pulley, wire rope, lifting hook, bolt are standard product (or design product), can utilize the existing resource of production facility, convenient and fast.
5. The method is simple, convenient to operate and low in cost, and can be popularized to the replacement construction of the coke oven column of any specification.
Drawings
FIG. 1 is a schematic illustration of the installation positions of a furnace column, a furnace door frame and a protection plate.
Fig. 2 is a cross-sectional view taken along A-A in fig. 1.
FIG. 3 is a schematic cross-sectional view of the position of the oven wall between the carbonization chamber and the combustion chamber of the coke oven.
Fig. 4 is a front view of the structure of the coke oven column replacing device of the present invention.
Fig. 5 is a top view of the coke oven column replacing device.
Fig. 6 is a front view showing another construction of the coke oven battery column exchanging apparatus of the present invention.
Fig. 7 is a plan view showing another construction of the coke oven battery exchanging apparatus of the present invention.
Fig. 8 is a cross-sectional view taken along A-A in fig. 7.
Fig. 9 is a sectional view taken along the direction B-B in fig. 7.
Fig. 10 is a cross-sectional view taken along the direction C-C in fig. 7.
Fig. 11 is a sectional view taken along the direction D-D in fig. 7.
Fig. 12 is a sectional view taken along the direction E-E in fig. 7.
Fig. 13 is a cross-sectional view taken along direction F in fig. 7.
Fig. 14 is a sectional view taken along the direction G in fig. 7.
Fig. 15 is a sectional view taken along the direction H in fig. 7.
Fig. 16 is a front view of the hanger beam installation in a column change of the present invention.
Fig. 17 is a side view of the hanger beam installation in a column change of the present invention.
FIG. 18 is a front view of the installation of a pillar reinforcement in a pillar exchange according to the present invention.
FIG. 19 is a side view of the installation of a pillar reinforcement in a pillar exchange according to the present invention.
FIG. 20 is a schematic view showing the fixing of the protective plate in the replacement of the furnace column according to the present invention.
FIG. 21 is a schematic view showing the installation of the column changer of the present invention.
Fig. 22 is a cross-sectional view taken along the direction A-A in fig. 18.
Fig. 23 is a schematic view showing an application state of the column changer of the present invention.
FIG. 24 is a schematic view of a column replacement process according to the present invention.
Wherein, the marks in the figures are as follows: 1-a furnace column; 2-furnace door frame; 3-furnace door; 4-a protective plate; a furnace wall between the 5-carbonization chamber and the combustion chamber; 6-a first backing plate; 7-a second backing plate; 8-a spring; 9-a first bottom plate; 10-a regenerator; 11-a second bottom plate; 12-bottom bracing; 13-coke oven uprights; 14-top braces; 15-a nut; 16-a first connection plate; 17-locking nut; 18-a first channel steel; 19-a bolt; 20-a second connection plate; 21-a third connection plate; 22-a first clamping plate; 23-locking screws; 24-a second clamping plate; 25-connecting rod; 26-a guide sleeve; 27-limiting screws; 28-limit nuts; 29-rib plates; 30-a second channel steel; 31-a third channel steel; 32-a third clamping plate; 33-hanging beams; 34-fixed pulleys; 35-a steel wire rope; 36-gas collecting tube; 38-a first reinforcement; 39-a second reinforcement; 40-a first furnace column; 41-a first protective plate jacking device; 42-a second furnace column; 43-to-be-replaced furnace column; 44-a third furnace column; 45-a second protection plate propping device; 46-fourth furnace column; 47-furnace column replacement device; 48-a first cutting position; 49-second cutting position.
Detailed Description
The construction and operation of the present invention will be further described with reference to the accompanying drawings.
In order to more clearly and fully explain the structure and the method related to the scheme, firstly, the coke oven structure designed by the scheme is simply introduced, and then the specific structure and the application method of the scheme are introduced in detail.
As shown in fig. 1, 2 and 3, the coke oven is composed of a plurality of carbonization chambers and combustion chambers alternately, each hole carbonization chamber is separated from the combustion chamber by a furnace wall 5, a regenerator 10 is arranged below the combustion chamber, a first bottom plate 9 is arranged between the combustion chamber and the regenerator 10, a second bottom plate 11 is arranged below the regenerator 10, and a coke oven upright post 13 is arranged at the bottom of the whole coke oven. The outer side of each furnace wall 5 is provided with a protection plate 4, the outer side of each protection plate 4 is provided with a furnace column 1, a furnace door frame 2 is also arranged between the protection plates 4 between the two furnace walls 5, and a furnace door 3 is arranged on the furnace door frame 2.
The bottom and the top of the furnace column 1 are respectively provided with a bottom brace 12 and a top brace 14, the bottom brace 12 and the top brace 14 always enable the furnace wall 5 to be in a compression state, so that the situation that after furnace wall bricks are loosened, a coke oven is inlaid between brick joints is avoided, the two ends of the bottom brace 12 and the top brace 14 are respectively provided with a first base plate 6, a second base plate 7 and a spring 8, the two ends of the bottom brace 12 and the two ends of the top brace 14 are fixed through nuts 15, and the furnace wall 5 is always in the compression state under any state through the telescopic state of the springs 8.
In order to ensure safer and high efficiency in the process of replacing the furnace column, the furnace column replacing device is provided, and the specific scheme is as follows:
the device for replacing the coke oven column comprises a fixing unit, a limiting unit and a bracket, wherein the fixing unit is used for fixing the bracket of the device; the front end of the limiting unit is provided with a furnace column limiting part which is used for limiting the moving furnace column in the process of replacing the furnace column, and the rear end of the limiting unit is movably connected with the support and used for adjusting the relative movement between the limiting unit and the support and controlling the moving speed and direction of replacing the furnace column.
In a first embodiment, as shown in fig. 4 and 5:
the device for replacing the coke oven column comprises fixing units, limiting units and a support, wherein the fixing units comprise two fixing units, the fixing units are symmetrically arranged at two ends of the support, each fixing unit comprises a rib plate 29 and two clamping plates arranged at one end of the rib plate 29, the fixing units are respectively a first clamping plate 22 and a second clamping plate 24, the second clamping plates 24 are arranged at one end of the rib plate 29, the first clamping plates 22 and the second clamping plates 24 are arranged on the rib plate 29 in parallel to form U-shaped clamping grooves, locking screws 23 are arranged on the first clamping plates 22, the U-shaped clamping grooves formed by the two clamping plates are clamped on the oven column, and after the locking screws 23 are screwed, the fixing units are fixed on the oven column.
The limiting unit is arranged in the middle of the bracket, the limiting unit comprises a limiting screw 27, a third clamping plate 32, a first connecting plate 16, a third connecting plate 21 and two connecting rods 25, wherein the two connecting rods 25 are arranged in parallel with the limiting screw 27, the two connecting rods 25 are positioned on two sides of the limiting screw 27, the two connecting rods 25 are identical in length with the limiting screw 27, the front ends of the limiting screw 27 and the connecting rods 25 are connected with one surface of the third connecting plate 21, the third clamping plate 32 is arranged on the other surface of the third connecting plate 21, and the rear ends of the limiting screw 27 and the connecting rods 25 are connected with the first connecting plate 16 after penetrating through the bracket. The third clamping plate 32 is provided with a furnace column limiting part, specifically, two protruding parts, which are arranged on the third clamping plate 32 and are opposite to the third connecting plate 21, are used for forming a U-shaped clamping groove, in the process of disassembling the furnace column, the furnace column is limited by clamping on two sides of the furnace column, the rear ends of the connecting rod 25 and the limiting screw 27 are movably connected with the support, the connecting rod 25 plays a role in stabilizing and guiding a limiting unit, the connecting rod 25 is fixed on the first connecting plate 16 through the locking nut 17, the rear end of the limiting screw 27 is in threaded connection with the limiting nut 28, the limiting nut 28 is fixed on the support, and the moving speed and the moving direction of the furnace column are controlled to be replaced by adjusting the relative position between the limiting screw 27 and the limiting nut 28.
In a second embodiment, as shown in fig. 6 to 15:
the device for replacing the coke oven column comprises a fixing unit, a limiting unit and a bracket, wherein the fixing unit comprises two fixing units which are symmetrically arranged at two ends of the bracket, and a detachable connecting piece is arranged between the fixing unit and the bracket; each fixing unit comprises a rib plate 29 and two clamping plates arranged at one end of the rib plate 29, namely a first clamping plate 22 and a second clamping plate 24, wherein the second clamping plate 24 is arranged at one end of the rib plate 29, the first clamping plate 22 and the second clamping plate 24 are arranged on the rib plate 29 in parallel to form a U-shaped clamping groove, a locking screw 23 is arranged on the first clamping plate 22, the U-shaped clamping groove formed by the two clamping plates is clamped on a furnace column, and the fixing unit is fixed on the furnace column after the locking screw 23 is screwed down. The connecting piece comprises a second connecting plate 20 arranged on the rib plate 29 and the support respectively, and a bolt 19 arranged on the second connecting plate 20, and the rib plate 29 and the second connecting plate 20 on the support are connected and fixed through the bolt 19, so that the fixation between the support and the fixing unit is achieved.
The limiting unit is the same as the limiting unit described in the first embodiment, and will not be described again here.
In the above embodiment, the third clamping plate 32 may be made of integrally formed channel steel, or welded by steel plates, so long as the limiting effect on the furnace column can be achieved.
The stop screw 27 is provided with a guide sleeve 26 at the connection for better connection with the third connection plate 16.
In order to further solve the problems in the prior art, a coke oven column replacement system is also disclosed, the system comprises a furnace column replacement device, a furnace column lifting device, a furnace column fixing device, a furnace column dismounting device and a protection plate fixing device, wherein the furnace column lifting device is used for lifting a furnace column in the process of dismounting the furnace column; the furnace column fixing device is used for fixing furnace columns at two sides of the cutting point in the process of disassembling and assembling the furnace columns; the furnace column dismounting device is used for cutting and welding the replaced furnace column part; the furnace column replacing device is the coke oven furnace column replacing device; the protection plate fixing device is used for fixing the coke oven protection plate at the position of the furnace column to be replaced.
In a third embodiment, as shown in fig. 16 to 24:
the coke oven furnace column replacement system comprises a furnace column replacement device, a furnace column lifting device, a furnace column fixing device, a furnace column dismounting device and a protection plate fixing device, wherein the furnace column lifting device comprises a winch and a lifting beam 33, the winch is provided with a fixed pulley 34 and a steel wire rope 35, the fixed pulley 34 is fixed on the lifting beam 33, one end of the steel wire rope 35, which bypasses the fixed pulley 34, is provided with a lifting hook, the other end of the steel wire rope 35 is connected with a winch driving motor, the replaced furnace column is lifted on the lifting hook, and the winch controls the steel wire rope 35 to lift or lower the replaced furnace column. Because the top of the furnace column is provided with the gas collecting tube 36, the windlass is avoided from being arranged on the gas collecting tube 36, and the defect of disassembly and assembly of the crane is avoided.
The furnace column fixing device is at least one beam which is arranged on two sides of the furnace column to be replaced and spans across a plurality of furnace columns, the beam which spans across the upper side of the furnace column to be replaced in the embodiment is a second reinforcement 39, the beam which spans across the lower side of the furnace column to be replaced is a first reinforcement 38, in order to further play a role of reinforcement, the first reinforcement 38 is selected to be two beams, the second reinforcement 39 is selected to be 3 beams, after the furnace column of the deformation section is removed, the furnace column of the top and bottom remaining sections is prevented from loosening, the remaining parts of the top and bottom of the furnace column must be reinforced before the furnace column is removed, the reinforcing beams of the embodiment are I-shaped steel carrying arms, and each I-shaped steel carrying arm spans 7 furnace columns (3 furnace columns on two sides of the furnace column to be removed are used for fixing the furnace column on two sides of a cutting point in the process of removing the furnace column.
The furnace column dismounting device is used for cutting and welding the replaced furnace column part, and the upper cutting point is selected to be a first cutting position 48, and the lower cutting point is selected to be a second cutting position 49.
The protection plate fixing device is used for fixing the coke oven protection plates at the positions of the furnace columns to be replaced, the installation positions of the protection plate fixing device are shown in fig. 20, the two sides of the furnace column 43 to be replaced are respectively provided with a first furnace column 40, a second furnace column 42, a third furnace column 44 and a fourth furnace column 46, the first protection plate jacking device 41 is fixed on the first furnace column 40 and the second furnace column 42, the second protection plate jacking device 45 is fixed on the third furnace column 44 and the fourth furnace column 46, the jacking screws of the two protection plate jacking devices are respectively positioned at two sides of the furnace column 43 to be replaced, the protection plates at two sides of the furnace column 43 to be replaced are propped after being screwed, and the furnace column 43 to be replaced is removed after the two protection plate jacking devices are installed and adjusted, and a new furnace column is replaced.
The column changer 47 is a coke oven column changer according to the above embodiment, and the coke oven column changer is mounted as shown in fig. 22 and 23, in which two fixing units of the coke oven column changer are respectively fixed to the second and third columns 42 and 44, and the clamping plates at the regulating front ends of the limiting screws of the limiting units are engaged with the flange plates of the column 43 to be replaced, thereby limiting the position of the column 43 to be replaced.
Fourth embodiment:
most parts of the embodiment are the same as those of the specific embodiment, and the difference is that the fixing unit and the bracket of the third embodiment are in a split form, the field safety is required in the application process, and the fixing unit and the bracket of the third embodiment are in an integrated form and do not need to be detached and installed.
The bracket of the above embodiment is of a U-shaped structure, wherein the bottom is a first channel steel 18, the two sides are a third channel steel 31, the first channel steel 18 and the third channel steel 31 are welded to form a bracket main body structure, the rib plate of the fixing device selects a second channel steel 30 as the main body structure, the channel steels are convenient to select materials on one hand and are ready-made materials on the other hand, the strength of the channel steels can meet the requirements, and the bracket is only an example, and can be applied to all the same functions, such as I-steel, angle steel, steel plate and the like, as long as the bracket can be realized.
Based on the furnace column replacement system, the invention also discloses a method for replacing the furnace column of the coke furnace, which comprises the following steps:
step 6, cutting off the furnace column at the selected cutting points respectively;
step 8, removing the furnace column to be replaced, and installing the furnace column to be replaced to a replacement position according to the reverse process of the disassembly process;
and 9, sequentially dismantling all devices of the furnace column replacement system to complete furnace column replacement.
Fifth embodiment:
the method for replacing the coke oven column specifically comprises the following steps:
firstly, manufacturing a hanging beam, wherein structural parts of the hanging beam are connected by welding;
secondly, manufacturing a furnace column replacement device, wherein all parts of the device are also connected by welding;
thirdly, installing the hanging beam and the winch at corresponding positions, wherein the hanging beam is installed on the furnace column;
fourthly, determining cutting points at two ends of the furnace column to be replaced, and installing furnace column fixing devices at two sides of the cutting points;
fifthly, installing protection plate fixing devices on two sides of a furnace column to be replaced, and fixing the protection plate at the position;
sixthly, mounting the hoisting steel wire rope on a fixed pulley of a winch;
seventh, the furnace column replacing device is fixedly arranged on furnace columns at two sides of the furnace column to be replaced, and the limiting screw rod of the furnace column replacing device is adjusted so that the clamping plate at the front end of the limiting screw rod is attached to the flange plate of the furnace column;
eighth step, cutting off the furnace column at the selected cutting points respectively;
ninth, adjusting a limit screw of a furnace column replacement device, and controlling the furnace column to be replaced to be far away from the coke furnace body at a constant speed until the furnace column to be replaced is in a natural sagging state;
tenth, removing the furnace column to be replaced, and installing the furnace column to be replaced to a replacement position according to the reverse process of the disassembly process;
and eleventh, sequentially removing all devices of the furnace column replacement system to complete furnace column replacement.
Specific embodiment six:
most steps of the embodiment are the same as those of the fifth embodiment, except that in the process of installing the furnace column replacement device, firstly, the fixing units are installed on furnace columns on two sides of the furnace column to be replaced, after the fixing units are fixed, the support is integrally installed on the fixing units, and the split type structure is suitable for disassembling and assembling the furnace column of the large coke oven, so that in the installation and transportation process, large components are split into small components, and the moving and the operation are more convenient.
In the above embodiment, the adjusting of the parts such as the limit bolt or the fixing bolt can be operated by a manual wrench, or can be operated by an electric mode, or can be completed by a small controller, and the adjusting device has strong flexibility according to specific field requirements.
After the furnace column is disassembled, the furnace column can be towed off the site by a forklift, a new furnace column is transported in by the forklift, or the furnace column is transported in other modes, so long as the mode can be realized.
The used material of this scheme is comparatively general, all can be directly from the market after purchasing the steel sheet, and the scene preparation (the material is Q345 steel, does not need heat treatment), also can take the scene application after making, has increased very big flexibility, has practiced thrift manufacturing time and cost.
The materials for manufacturing the hanging beam and the special tool are very common and are purchased randomly in the market (the material is Q235 steel without heat treatment).
The forklift, the winch, the pulley, the steel wire rope, the lifting hook and the bolt are standard products (or shaped products), and the existing resources of a production plant can be utilized.
The above structural installation manner, connection relation between the components, and treatment method are only described as an example, and it cannot be considered that only the above scheme is protected, and the method of the scheme can be referred to in the case of being applied to the process of replacing the coke oven column.
Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A method for coke oven column replacement, characterized by: the method comprises the following steps:
step 1, fixedly mounting a winch and a hanging beam above a furnace column to be replaced;
step 2, determining cutting points at two ends of a furnace column to be replaced, and installing furnace column fixing devices at two sides of the cutting points;
step 3, mounting protection plate fixing devices on two sides of a furnace column to be replaced, and fixing the protection plate at the position;
step 4, mounting the hoisting steel wire rope on a fixed pulley of a winch;
step 5, fixedly mounting a furnace column replacement device on furnace columns at two sides of a furnace column to be replaced, and adjusting a limit screw of the furnace column replacement device to enable a clamping plate at the front end of the limit screw to be attached to a flange plate of the furnace column; the furnace column replacement device comprises a fixing unit, a limiting unit and a bracket, wherein the fixing unit is used for fixing the bracket of the device; the front end of the limiting unit is provided with a furnace column limiting part which is used for limiting the moving furnace column in the process of replacing the furnace column, and the rear end of the limiting unit is movably connected with the bracket and used for adjusting the relative movement between the limiting unit and the bracket and controlling the moving speed and direction of replacing the furnace column; the fixing units comprise two fixing units and two clamping plates, the two fixing units are symmetrically arranged at two ends of the support, each fixing unit comprises a rib plate and the two clamping plates arranged at one end of the rib plate, one clamping plate is provided with a locking screw, the two clamping plates are clamped on the furnace column, and the fixing units are fixed on the furnace column by the locking screws; the limiting unit is arranged in the middle of the bracket; the limiting unit comprises a limiting screw, clamping plates, connecting plates and two connecting rods, wherein the two sides of the limiting screw are respectively provided with one connecting rod in parallel, the two ends of the limiting screw and the connecting rods are respectively connected with one connecting plate, the clamping plates are arranged on the connecting plates at the front ends of the limiting screw and the connecting rods, and the rear ends of the limiting screw and the connecting plates penetrate through the bracket and are connected with the other connecting plates;
step 6, cutting off the furnace column at the selected cutting points respectively;
step 7, adjusting a limit screw of a furnace column replacement device, and controlling the furnace column to be replaced to be away from the coke furnace body at a constant speed until the furnace column to be replaced is in a natural sagging state;
step 8, removing the furnace column to be replaced, and installing the furnace column to be replaced to a replacement position according to the reverse process of the disassembly process;
and 9, sequentially dismantling all devices of the furnace column replacement system to complete furnace column replacement.
2. The method for coke oven column replacement of claim 1, wherein: a guide sleeve is arranged between the connecting plate at the front end of the limit screw and is used for fixing the limit screw on the connecting plate; the support is fixedly provided with a limit nut, and the limit screw is in threaded connection with the limit nut.
3. The method for coke oven column replacement according to claim 1 or 2, characterized in that: a detachable connecting piece is arranged between the fixing unit and the bracket.
4. A method for coke oven column replacement as recited in claim 3, wherein: the connecting piece comprises connecting plates respectively arranged on the fixing unit and the bracket, and bolts arranged on the connecting plates, and the connecting plates are connected and fixed through the bolts.
5. Coke oven stove post change system, its characterized in that: the furnace column replacing device, the furnace column hoisting device, the furnace column fixing device, the furnace column dismounting device and the protection plate fixing device are included, wherein the furnace column hoisting device is used for hoisting a furnace column in the process of dismounting the furnace column; the furnace column fixing device is used for fixing furnace columns at two sides of the cutting point in the process of disassembling and assembling the furnace columns; the furnace column dismounting device is used for cutting and welding the replaced furnace column part; the oven column changing device is the coke oven column changing device in the method of any one of claims 1 to 4; the protection plate fixing device is used for fixing the coke oven protection plate at the position of the furnace column to be replaced; the furnace column hoisting device comprises a winch and a hanging beam, wherein the winch is used for lifting or lowering the replaced furnace column, and the hanging beam is used for fixing a fixed pulley of the winch in the process of replacing the furnace column.
6. The coke oven shaft change system of claim 5, wherein: the furnace column fixing device is at least one cross beam which is arranged at two sides of the replacement furnace column and spans across the furnace columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710446770.2A CN107033928B (en) | 2017-06-14 | 2017-06-14 | Device, system and method for replacing coke oven column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710446770.2A CN107033928B (en) | 2017-06-14 | 2017-06-14 | Device, system and method for replacing coke oven column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107033928A CN107033928A (en) | 2017-08-11 |
| CN107033928B true CN107033928B (en) | 2023-07-14 |
Family
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| CN109913248B (en) * | 2019-04-19 | 2023-11-14 | 华泰永创(北京)科技股份有限公司 | Furnace column device of heat exchange type two-section coke oven and adjusting method thereof |
| CN110317615B (en) * | 2019-07-03 | 2021-03-30 | 五冶集团上海有限公司 | Coke oven column and protection plate dismounting method |
| CN111546287B (en) * | 2020-06-15 | 2023-12-15 | 常州博瑞电力自动化设备有限公司 | Replacement device for to-be-detected device of valve string and use method thereof |
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| CN102002374A (en) * | 2010-12-06 | 2011-04-06 | 中国二十二冶集团有限公司 | Thermal-exchange construction method of coke oven column |
| CN104694141A (en) * | 2015-02-13 | 2015-06-10 | 山东钢铁股份有限公司 | Protection plate fixing device and method during replacement of coke oven column |
| JP2016003261A (en) * | 2014-06-16 | 2016-01-12 | 新日鐵住金株式会社 | Method of replacement of backstay of coke oven |
| CN206814686U (en) * | 2017-06-14 | 2017-12-29 | 五冶集团上海有限公司 | The apparatus and system changed for coke oven stay |
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| JPH04366198A (en) * | 1991-06-12 | 1992-12-18 | Sumitomo Metal Ind Ltd | Replacement of protective plate for fire hole of coke oven |
| KR960008747Y1 (en) * | 1993-12-20 | 1996-10-09 | 포항종합제철 주식회사 | Coke oven door frame changing device |
| CN102002374A (en) * | 2010-12-06 | 2011-04-06 | 中国二十二冶集团有限公司 | Thermal-exchange construction method of coke oven column |
| JP2016003261A (en) * | 2014-06-16 | 2016-01-12 | 新日鐵住金株式会社 | Method of replacement of backstay of coke oven |
| CN104694141A (en) * | 2015-02-13 | 2015-06-10 | 山东钢铁股份有限公司 | Protection plate fixing device and method during replacement of coke oven column |
| CN206814686U (en) * | 2017-06-14 | 2017-12-29 | 五冶集团上海有限公司 | The apparatus and system changed for coke oven stay |
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