CN101921602B - Construction method for compressing protection plates of coke oven by adopting gantry hanger - Google Patents

Construction method for compressing protection plates of coke oven by adopting gantry hanger Download PDF

Info

Publication number
CN101921602B
CN101921602B CN 201010264632 CN201010264632A CN101921602B CN 101921602 B CN101921602 B CN 101921602B CN 201010264632 CN201010264632 CN 201010264632 CN 201010264632 A CN201010264632 A CN 201010264632A CN 101921602 B CN101921602 B CN 101921602B
Authority
CN
China
Prior art keywords
door
type card
hanging bracket
shaped hanging
protecting sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201010264632
Other languages
Chinese (zh)
Other versions
CN101921602A (en
Inventor
张晓宁
董恩平
叶波
张伟山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China First Metallurgical Group Co Ltd
Original Assignee
China First Metallurgical Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China First Metallurgical Group Co Ltd filed Critical China First Metallurgical Group Co Ltd
Priority to CN 201010264632 priority Critical patent/CN101921602B/en
Publication of CN101921602A publication Critical patent/CN101921602A/en
Application granted granted Critical
Publication of CN101921602B publication Critical patent/CN101921602B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention relates to a construction method for compressing protection plates of a coke oven by adopting a gantry hanger. The method comprises the following steps of: mounting protection plates on the oven head wall surfaces at both sides of a wall machine and a coke in a coking chamber; pressing oven columns in front of the protection plates at both sides of the wall machine and the coke; fixing the oven columns at both sides through an upper horizontal brace and a lower horizontal brace; aligning the oven columns and the protection plates to accord with the mounting requirement; hoisting the gantry hanger (3) to the right front of the oven columns by a travelling crane arranged on a coke oven shed, hanging the gantry hanger on the upper horizontal brace through a hoisting ring of a hole steel plate (9) thereof and arranging the upper horizontal brace at the top of the oven columns (1); and pressing a protection plates (2) with both legs of each door-shaped clamp on the gantry hanger and then, sequentially applying corresponding pulling forces on the door-shaped clamps arranged at the upper part, the middle part and the lower part of the gantry hanger so as to evenly tighten and compact a gap between the protection plates and fireproof material bricks in the coking chamber. The invention can improve the mounting quality of the protection plates so as to ensure the excellent sealing performance and the heat preservation of the protection plates to the coke oven head.

Description

Adopt door-shaped hanging bracket to come the constructional method of pressing coke oven guard plate
Technical field
The present invention relates to the coke oven construction field, relate in particular to a kind of constructional method that adopts door-shaped hanging bracket to come pressing coke oven guard plate.
Background technology
In the construction, compressing protecting sheet with furnace stay mainly was the spring of regulating between furnace stay and the protecting sheet, by spring protecting sheet was exerted pressure in the past, and simultaneously, spring also can be given the furnace stay reactive force, and furnace stay can produce deflection deformation like this; Because furnace stay is fixed at two up and down, therefore deflection deformation is inconsistent up and down, thereby make furnace stay inhomogeneous to protecting sheet pressure.Therefore; slit between protecting sheet and the coking chamber burner masonry also can not of uniform sizely cause, even some places are because pressure is inadequate, makes the slit densification reality between protecting sheet and the coking chamber wall masonry; after coke oven is normally produced for some time, cause blowby on every side, emit the accidents such as tobacco.
Summary of the invention
Technical problem to be solved by this invention is: a kind of constructional method that adopts door-shaped hanging bracket to come pressing coke oven guard plate is provided; to guarantee at coke oven guard plate in the cold conditions installation process, realize that the fibrous magnesium silicate rope between protecting sheet and the coking chamber body of wall is evenly compressed by enough pressure.
The technical scheme that the present invention solves its technical problem employing is: install protecting sheet at coking chamber machine, burnt both sides burner metope first, then simultaneously press furnace stay before machine, burnt both sides protecting sheet, the both sides furnace stay is fixed by upper horizontal brace, lower horizontal brace; Align again furnace stay and protecting sheet, make it to meet installation requirement; After finishing these work, door-shaped hanging bracket is transported to the right on of furnace stay by the traveling crane that arranges on the coke oven booth, door-shaped hanging bracket is suspended on the upper horizontal brace by the suspension ring of its open pore steel plate again, and upper horizontal brace is positioned at the top of furnace stay; Two legs of the every sect type card on the door-shaped hanging bracket are all pushed down protecting sheet; then the door type card that the upper, middle and lower of this door-shaped hanging bracket is arranged applies relative pulling force successively; utilize " point → face " power transmission principle of door type card, make successively from top to bottom that the slit evenly presses closely between protecting sheet and the coking chamber refractory materials masonry.
The invention has the beneficial effects as follows:
After present method construction; between protecting sheet and the coking chamber body of wall slit when cold conditions at least than press the method for protecting sheet to dwindle 5~10mm with furnace stay; thereby improved the installation quality of protecting sheet, guaranteed excellent sealing performance and the heat-insulating property of protecting sheet to coke oven end.
After using present method construction; because protecting sheet is applied enough pressure; and uniform-compression; make the steel wire fibrous magnesium silicate rope that adds between protecting sheet and the masonry for furnace wall compress compacting; slit basic controlling between protecting sheet and the masonry for furnace wall is between 5~10mm; and the slit generally can only be controlled between 10~15mm when adopting furnace stay to press the method construction of protecting sheet, thus when adopting present method construction between protecting sheet and the coking chamber body of wall slit when cold conditions at least than pressing the method for protecting sheet to dwindle 5~10mm with furnace stay.
Description of drawings
Fig. 1 is for compressing protecting sheet door-shaped hanging bracket perspective view.
Fig. 2 is the structural representation of door-shaped hanging bracket 3 among Fig. 1.
Fig. 3 is the structural representation of the suspension bracket support body of door type card 6 among Fig. 1.
Fig. 4 is the structural representation of door type card 6 among Fig. 1.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the vertical view of Fig. 4.
Fig. 7 is the structural representation of the second channel-section steel 8 among Fig. 2.
Fig. 8 is the structural representation of open pore steel plate 9 among Fig. 2.
Among the figure: 1. furnace stay; 2. protecting sheet; 3. door-shaped hanging bracket; 4. go up horizontal brace; 5. the first channel-section steel; 6. door type card; 7. Twisted Steel; 8. the second channel-section steel; 9. open pore steel plate; 10. the 3rd channel-section steel; 11. weldless steel tube; 12. steel plate; 13. junction steel plate; 14. reinforcement steel plate; 15. suspension ring bar.
Embodiment
The present invention is further illustrated below in conjunction with embodiment and accompanying drawing.
Employing door-shaped hanging bracket provided by the invention comes the constructional method of pressing coke oven guard plate; the method is: for pressurizeing in the coke oven stay spring group; pressure to protecting sheet is inadequate and inhomogeneous; cause protecting sheet to add between steel wire fibrous magnesium silicate rope and the coking chamber body of wall and contact imprecision; produce the problem in space; upper horizontal brace 4 at the furnace stay top is hung with door-shaped hanging bracket; the upper, middle and lower of this door-shaped hanging bracket arranges three sect type cards, and two legs of door type card are pushed down respectively the upper, middle and lower section of protecting sheet.Apply successively relative pulling force by the door type card to the upper, middle and lower of machine, burnt both sides door-shaped hanging bracket; utilize " point → face " power transmission principle of door type card, make successively from top to bottom that the slit evenly presses closely between protecting sheet and the coking chamber refractory materials masonry.
The concrete method that may further comprise the steps that adopts of the present invention:
1. making door-shaped hanging bracket:
According to the metope structure of coke furnace carbonization chamber wall telephone, mechanical coke both sides burner (hereinafter to be referred as machine, Jiao), in conjunction with the fixedly characteristics of both sides furnace retaining ironware, the setting of machine, burnt both sides can power transmission door type card.The power transmission of door type card energy; but can't fix in the coking chamber wall in the air; stretch out the characteristics of furnace stay in conjunction with horizontal brace on the furnace stay 4; a kind of suspension bracket is set; this hanger suspending stretches out on the position of furnace stay in upper horizontal brace 4; then the door type card 6 that the upper, middle and lower of protecting sheet is arranged is located to be weldingly connected with the upper, middle and lower of suspension bracket respectively, thereby a type card 6 can be fixed up and down, is convenient to power transmission.After door type card and suspension bracket are welded into integral body, just formed door-shaped hanging bracket.
2. handling door-shaped hanging bracket:
After door-shaped hanging bracket completes, be transported to the coking chamber wall place that needs the pressurization protecting sheet with traveling crane;
Wireline is through on two holes of the second channel-section steel 8 of door-shaped hanging bracket during handling, when the suspension ring of the open pore steel plate 9 of door-shaped hanging bracket be suspended on upper horizontal brace 4 places of stretching out furnace stay reliable after, unclamp hoisting wirerope; Machine, burnt both sides hang door-shaped hanging bracket simultaneously.
3. arrange drawing the power transmission instrument:
On the three sect type cards of the upper, middle and lower of machine, burnt both sides door-shaped hanging bracket, hang successively chain block; When hanging chain block, the workmen climbs over sling from the coking chamber hole, then step down on Φ 22 Deformed Steel Barss about suspension bracket, carry out successively the steady job that each sect type card hand is drawn cucurbit, after fixing, machine, burnt both sides are coupled together by wireline respectively with the chain block on the knockout hole, the door type card left and right sides, position, form the power transmission instrument.
4. pressing coke oven guard plate:
Successively machine, burnt both sides are applied pulling force with the door type card of the upper, middle and lower at position; machine, coke side door type card are formed drawing; by " point → face " power transmission principle of door type card, protecting sheet and coking chamber refractory materials masonry are evenly pressed closely.Concrete grammar is as follows:
(1) compress upper portion door type card:
After upper portion door type card and jack were connected firmly, the workmen spurred jack, compresses simultaneously upper portion door type card, and this type card is passed to protecting sheet to pressure, and the both sides protecting sheet is compressed simultaneously;
(2) compress middle part, lower gate type card:
After upper portion door type card has been pressed, then according in step 2, step 3 construction, lower gate type card;
After top, middle part, lower gate type card all compress, whole this block protection plate is all evenly pressed closely with coking chamber refractory materials masonry for furnace wall.
5. after one coking chamber burner masonry and this place's protecting sheet have compressed; with driving a vehicle the handling door-shaped hanging bracket to other arbitrary protecting sheet that needs to pressurize; repeat above-mentioned 1~4 step, until finish all coking chamber burner masonries and the pressurized operation of the supporting protecting sheet that links to each other with it.
The effect of present method: the protecting sheet installation, press protecting sheet with the furnace stay top; Hang simultaneously door-shaped hanging bracket on machine, the burnt both sides protection board wall; by chain block double-wing door type suspension bracket; machine, burnt both sides door-shaped hanging bracket compress the both sides protecting sheet simultaneously, protecting sheet are contacted tighter with the coking chamber body of wall, can guarantee effectively that the slit is obturaged closely knit between body of wall and the protecting sheet.
The door-shaped hanging bracket of pressing coke oven guard plate provided by the invention, its structure is: this door-shaped hanging bracket 3 is by the suspension bracket support body that plays suspension and climbing effect, the three sect type cards 6 that play the pressing coke oven guard plate intermal force that are weldingly connected with upper, middle and lower with the suspension bracket support body form, and wherein: the top at the suspension bracket support body is provided with suspension ring; Every sect type card is equipped with two legs that contact with coke oven guard plate, and leg is welded on the 3rd channel-section steel 10, and the 3rd channel-section steel 10 is welded on the suspension bracket support body.
The structure of the door-shaped hanging bracket 3 of pressing coke oven guard plate is described below in conjunction with Fig. 1 to Fig. 8.
As shown in Figure 1: described door-shaped hanging bracket 3 is placed on the positive front of furnace stay 1, and protecting sheet 2 is installed in the back side of furnace stay 1, and door-shaped hanging bracket 3 is suspended on the upper horizontal brace 4 by the suspension ring of its open pore steel plate 9, and upper horizontal brace 4 is positioned at the top of furnace stay 1.
The structure of described suspension bracket support body is as shown in Figures 2 and 3: by the first channel-section steel 5, and Twisted Steel 7, the second channel-section steels 8, open pore steel plate 9 forms.The first channel-section steel 5 has two, is provided with equally distributed between them and the many Twisted Steels 7 that link to each other of piercing welding with it, and this Twisted Steel is used for the climbing suspension bracket, fixedly chain block and wireline usefulness.Be provided with the second channel-section steel 8 on the top of suspension bracket support body, this channel-section steel mainly is that the handling door-shaped hanging bracket pressurizes to other protecting sheet place, and this channel-section steel and two the first channel-section steels 5 are weldingly connected.Be equipped with a with it continuous open pore steel plate 9 of full weld at the top of two the first channel-section steels 5.
Described the first channel-section steel 5 can adopt [10 channel-section steels of L=5600mm.Spacing between the Twisted Steel 7 is 350mm, and every Twisted Steel 7 can adopt screw thread 22 reinforcing bars of L=490mm.The second channel-section steel 8 can adopt [14 channel-section steels of L=1000mm.Open pore steel plate 9 can adopt the steel plate of t=20mm.Described technical parameter is reference value, can change according to practical situation.
Respectively be provided with the door type card 6 of a lateral distribution at the place, upper, middle and lower of suspension bracket support body.
The structure of described door type card 6 such as Fig. 4 are to shown in Figure 6: by the 3rd channel-section steel 10 and with it two legs being weldingly connected of two ends form, described leg is made by weldless steel tube 11.Wherein, the end welding steel 12 of weldless steel tube 11 seals the hole of weldless steel tube, makes the end of weldless steel tube 11 form a plane of constraint.Be provided with strengthening part at the 3rd channel-section steel 10 and weldless steel tube 11 connecting places, these parts are comprised of junction steel plate 13 and the reinforcement steel plate 14 that is weldingly connected with it; The web of the 3rd channel-section steel 10 and junction steel plate 13 are welded to form integral body, and a side of junction steel plate 13 is with being weldingly connected with weldless steel tube 11.Be provided with the knockout hole at reinforcement steel plate 14, this knockout hole hangs chain block or wireline.
Described the 3rd channel-section steel 10 can adopt L=1000mm's [10 channel-section steels, weldless steel tube 11 can adopt the weldless steel tube of Φ 108 * 4 and L=650mm, steel plate 12 and junction steel plate 13 can adopt the thick steel plate of t=10mm, strengthen steel plate 14 and can adopt the thick steel plate of t=8mm.Described technical parameter is reference value, can change according to practical situation.
The structure of the second channel-section steel 8 is as shown in Figure 7: the second channel-section steel 8 locates respectively to be drilled with an aperture hole that is 30mm, two holes width between centers channel-section steel edge 50mm for the long channel-section steel of L=1000mm about it.The second channel-section steel 8 is mainly used in mobile door-shaped hanging bracket 3, and wireline is through on two holes, transports door-shaped hanging bracket 3 to any hole coking chamber wall with the driving horizontal and vertical, in order to continue to compress protecting sheet 2 constructions.Described technical parameter is reference value, can be according to the different type of furnace, and coking chamber wall size is not equal, changes according to practical situation.
The structure of open pore steel plate 9 is as shown in Figure 8: open pore steel plate 9 is the thick steel plate of t=20mm, is cut with at an upper portion thereof the hole of an aperture 150mm, and these technical parameters are reference value, can change according to practical situation.The bottom of this open pore steel plate is that suspension ring bar 15 is welded on (Fig. 3) on the suspension bracket support body, forms suspension ring, and the width of suspension ring bar 15 is not less than 25mm.
This door-shaped hanging bracket uses simple, after the pressurization of one coking chamber wall and protecting sheet is finished, carries out pressurized operation by driving level, carriage vertically to another road coking chamber wall that is erected on the stove; And can use the various type of furnaces, make its scope of application wider.
This door-shaped hanging bracket adopts common tubing, section bar and Deformed Steel Bars for the design main raw, has economic, practical characteristics.
Above explanation only is Application Example of the present invention, certainly can not limit with this interest field of the present invention, and the equivalence of therefore doing according to the present patent application claim changes, and still belongs to protection scope of the present invention.

Claims (4)

1. the constructional method of a pressing coke oven guard plate, it is characterized in that a kind of constructional method that adopts door-shaped hanging bracket to come pressing coke oven guard plate, the method is: install protecting sheet at coking chamber machine, burnt both sides burner metope first, then simultaneously press furnace stay (1) before machine, burnt both sides protecting sheet, the furnace stay of machine, burnt both sides (1) is fixed by upper horizontal brace (4), lower horizontal brace; Align again furnace stay and protecting sheet, make it to meet installation requirement; After finishing these work, again door-shaped hanging bracket (3) is transported to the right on of furnace stay (1) by the traveling crane that arranges on the coke oven booth, door-shaped hanging bracket (3) is suspended on the upper horizontal brace (4) by the suspension ring of its open pore steel plate (9), and upper horizontal brace is positioned at the top of furnace stay (1); Two legs of the every sect type card on the door-shaped hanging bracket are all pushed down protecting sheet (2), then the door type card that the upper, middle and lower of this door-shaped hanging bracket is arranged applies relative pulling force successively, utilize " point → face " power transmission principle of door type card, make successively from top to bottom that the slit evenly presses closely between protecting sheet (2) and the coking chamber refractory materials masonry;
The implementation step of the method comprises:
A. handling door-shaped hanging bracket:
The coking chamber wall place that door-shaped hanging bracket (3) handling is extremely needed pressurization protecting sheet (2) with driving; Wireline is through on two holes of the second channel-section steel (8) of door-shaped hanging bracket during handling, when the suspension ring of the open pore steel plate (9) of door-shaped hanging bracket be suspended on the upper horizontal brace (4) of stretching out furnace stay locate reliable after, unclamp hoisting wirerope; Machine, burnt both sides hang door-shaped hanging bracket simultaneously;
B. arrange drawing the power transmission instrument:
On the door type card of the top of machine, burnt both sides door-shaped hanging bracket, middle part, bottom, hang successively and fix chain block, then equidirectional machine, burnt both sides, couple together with the chain block on the door type card at position, form the power transmission instrument;
C. pressing coke oven guard plate:
Successively the door type card of machine, upper, middle and lower, burnt both sides applied pulling force, protecting sheet is evenly pressed closely with coking chamber refractory materials masonry from top to bottom successively, concrete grammar is:
Compress upper portion door type card: after upper portion door type card and jack were connected firmly, the workmen spurred jack, compresses simultaneously upper portion door type card, and this type card is passed to protecting sheet to pressure, and the top of machine, burnt both sides protecting sheet is compressed simultaneously,
Compress middle part, lower gate type card: after upper portion door type card has been pressed, then according to steps A, step B construction middle part, lower gate type card, middle part, the bottom of machine, burnt both sides protecting sheet are compressed simultaneously,
After top, middle part, lower gate type card all compress, whole this block protection plate is all evenly pressed closely with coking chamber refractory materials masonry for furnace wall;
D. after one coking chamber burner masonry and this place's protecting sheet have compressed; with driving a vehicle the handling door-shaped hanging bracket to other arbitrary protecting sheet that needs to pressurize; repeat above-mentioned steps A, step B and step C, until finish all coking chamber burner masonries and the pressurized operation of the supporting protecting sheet that links to each other with it.
2. constructional method according to claim 1, when it is characterized in that hanging chain block, the workmen climbs door-shaped hanging bracket from the coking chamber hole, then step down in the Twisted Steel (7) that links to each other with this door-shaped hanging bracket upper about door-shaped hanging bracket, carry out successively the steady job that each sect type card hand is drawn cucurbit.
3. constructional method according to claim 1, it is characterized in that when chain block after two ear knockout holes on the door type card are fixed, put on wireline, machine, burnt both sides is equidirectional, couple together with the chain block on the door type card at position.
4. constructional method according to claim 1 is characterized in that applying simultaneously pulling force in machine, burnt both sides with the both sides of position door type card, and machine, coke side door type card are formed drawing, thereby compresses protecting sheet.
CN 201010264632 2010-08-27 2010-08-27 Construction method for compressing protection plates of coke oven by adopting gantry hanger Active CN101921602B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010264632 CN101921602B (en) 2010-08-27 2010-08-27 Construction method for compressing protection plates of coke oven by adopting gantry hanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010264632 CN101921602B (en) 2010-08-27 2010-08-27 Construction method for compressing protection plates of coke oven by adopting gantry hanger

Publications (2)

Publication Number Publication Date
CN101921602A CN101921602A (en) 2010-12-22
CN101921602B true CN101921602B (en) 2013-02-27

Family

ID=43336827

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010264632 Active CN101921602B (en) 2010-08-27 2010-08-27 Construction method for compressing protection plates of coke oven by adopting gantry hanger

Country Status (1)

Country Link
CN (1) CN101921602B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107011926A (en) * 2017-06-14 2017-08-04 五冶集团上海有限公司 The device and method of protection board is fixed in being changed for coke oven stay
CN108913164B (en) * 2018-08-20 2020-10-09 中国五冶集团有限公司 Truck crane symmetric hoisting coke oven column, protection plate structure and protection plate pressurizing method
CN112783054B (en) * 2021-01-04 2022-03-08 海门市帕源路桥建设有限公司 Electric remote control system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950228A (en) * 1973-04-07 1976-04-13 Dr. C. Otto & Comp. G.M.B.H. Leveling arrangement for coke ovens
CN200954977Y (en) * 2006-09-05 2007-10-03 中国第一冶金建设有限责任公司 Coke-over door safety hoisting device
CN101781573A (en) * 2010-04-07 2010-07-21 天津二十冶建设有限公司 Quick installation method of coke oven guard plate and oven column

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080209849A1 (en) * 2007-03-02 2008-09-04 Saturn Machine & Welding Co., Inc. Method and Apparatus for Replacing Coke Oven Wall

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950228A (en) * 1973-04-07 1976-04-13 Dr. C. Otto & Comp. G.M.B.H. Leveling arrangement for coke ovens
CN200954977Y (en) * 2006-09-05 2007-10-03 中国第一冶金建设有限责任公司 Coke-over door safety hoisting device
CN101781573A (en) * 2010-04-07 2010-07-21 天津二十冶建设有限公司 Quick installation method of coke oven guard plate and oven column

Also Published As

Publication number Publication date
CN101921602A (en) 2010-12-22

Similar Documents

Publication Publication Date Title
CN2923903Y (en) Building-brick robot
CN101921602B (en) Construction method for compressing protection plates of coke oven by adopting gantry hanger
CN208814493U (en) A kind of steel forming plate for bridge suspender
CN201381177Y (en) Board lifting machine for high density wallboard
CN101920903B (en) Door-shaped hanging bracket for pressing coke oven guard plate
CN201857200U (en) N-shaped suspension bracket for compressing coke oven baffle
CN210917245U (en) Reinforcing steel bar pulling, conveying and binding device
CN202430992U (en) Vertical cast-in-situ wallboard machine
CN102286927A (en) Integral mounting construction method of bridge pier column bent cap reinforcement cage
CN106350081A (en) Heat-insulating method used during hot maintenance of coke oven carbonization room
CN203373663U (en) Pulley type steel strand limiting tool
CN207392451U (en) A kind of building armored concrete overhangs girder construction
CN206814686U (en) The apparatus and system changed for coke oven stay
CN103215051B (en) Local-slippage construction method of furnace column
CN101767753B (en) Method for hoisting by lifting belt vertically
CN210828409U (en) Novel protection canopy of encorbelmenting
CN202745277U (en) Practical and convenient rib for split heads
CN203336186U (en) Sliding supporting device
CN219158374U (en) Horse riding type simple hanging basket
CN204417404U (en) A kind of furnace stay stationary installation for changing coke oven cross-brace
CN101812828B (en) Straightening machine for edge of steel box girder
CN213171351U (en) Automatic roll changing device for cleaning section of hot galvanizing unit
CN217419964U (en) Large-span superelevation roofing building carrier plate reinforcing apparatus
CN201737894U (en) Coke oven charging hole seat iron piece mounting jig
CN206205402U (en) A kind of Novel variable-section scaffold

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant