CN103183289B - Integral prefabricated ignition furnace lifting structure and mounting method thereof - Google Patents
Integral prefabricated ignition furnace lifting structure and mounting method thereof Download PDFInfo
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- CN103183289B CN103183289B CN201110454676.4A CN201110454676A CN103183289B CN 103183289 B CN103183289 B CN 103183289B CN 201110454676 A CN201110454676 A CN 201110454676A CN 103183289 B CN103183289 B CN 103183289B
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Abstract
The invention relates to an integral prefabricated ignition furnace lifting structure comprising a furnace top frame and a plurality of prefabricated blocks. Lifting screws are connected to the prefabricated blocks. A plurality of suspending slide ways are provided on the furnace top frame. Suspending plates are provided on upper ends of the lifting screws of the prefabricated blocks. The prefabricated blocks are suspended on the suspending slide ways through the lifting screws and the suspending plates. The suspending plates can slide along the suspending slide ways. With the integral prefabricated ignition furnace lifting structure, prefabricated block mounting labor intensity can be reduced, construction period can be shortened, construction safety factor can be improved, and ignition furnace lining quality can be improved. The mounting method of the lifting structure comprises the steps that: (1) the furnace top frame is mounted; (2) the prefabricated blocks are mounted one by one. When the step (1) is carried out, the plurality of suspending slide ways are arranged on the furnace top frame. When the step (2) is carried out, the prefabricated blocks are suspended and the lifting screws penetrate the suspending slide ways; the suspending plates are mounted on lifting screws of the prefabricated blocks; the prefabricated blocks are suspended on the suspending slide ways through the lifting screws and the suspending plates; and the prefabricated blocks are slid to mounting positions along the suspending slide ways.
Description
Technical field
The present invention relates to ignition furnace of sintering machine, particularly relate to Integral prefabricated type ignition furnace hoisting structure and installation method thereof.
Background technology
In modern sintering process process, ignition furnace is used to provide hot strip flame to mix surface, make solid fuel ignition wherein, and top layer mixture is sintered under ignition furnace high-temperature flue gas and solid fuel ignition exothermic effects, the heat simultaneously providing sufficient oxygen amount to be put aside on top layer by air suctiton ventilator exhausting is passed to lower one deck mixture, impels the solid fuel of lower one deck to burn away thus sintering process is rapidly to down and carry out and then complete sintering process.
Ignition furnace is different according to furnace lining structure, can be divided into integrated casting type and Integral prefabricated type two class.Integrated casting type ignition furnace and whole ignition furnace lining form by amorphous refractory cast-in-site, but because of its long construction period, construction procedure complexity, this method of the less employing of sintering plant.Integral prefabricated type ignition furnace then relies on its construction procedure simple, and the advantage of short construction period generally adopts for sintering market.Integral prefabricated type ignition furnace refers to that whole ignition furnace lining is formed by prefabricated refractory brick body.When constructing, first needing attachment point stove steel structure frame, being then positioned in steel structure frame according to drawing position respectively by pouring into a mould, toasting complete refractory precast block before dispatching from the factory, finally by fixing for all prefabricated section liftings.Use the method maintenance or change ignition furnace, within the fastest 3 days, can resume production, having a great economic significance for the sintering plant that namely stopping production loses several ten thousand yuan for a day.
The hoisting structure of existing Integral prefabricated type ignition furnace as shown in Figure 1 to Figure 3, it comprises furnace top frame 1, prefabricated section 2, lifting screw rod 3 and lifting nut 4, each prefabricated section 2 is fixed on below furnace top frame 1 by lifting screw rod 3 and the hanging of lifting nut 4, between contiguous prefabricated piece 2, stay dilatation joint 6 to absorb swell increment, in Fig. 2, direction shown in arrow is chassis direct of travel.As can be seen from Figure, furnace top frame 1 is by the framed structure of multiple channel-section steel assembly welding, each prefabricated section 2 just can not be moved after being connected with furnace top frame 1 with lifting nut 4 by lifting screw rod 3, therefore, adopts following steps when installing the hoisting structure of Integral prefabricated type ignition furnace:
1) furnace top frame 1 is installed;
2) one by one prefabricated section 2 is installed,
Carry out step 2) time, first each prefabricated section 2 must be carried to immediately below predetermined installation site, and then use manual pulley device to be sling by prefabricated section 2, and by lifting nut 4, lifting screw rod 3 upper end is fixed on furnace top frame 1.
Being proven, there are following three defects in the hoisting structure of existing Integral prefabricated type ignition furnace:
1, installation difficulty is large: owing to being often crossed construction in construction, cannot ensure that maintenance overhead traveling crane is for a long time for ignition furnace fitting-up gang, and be positioned at the head section of whole sintering machine due to ignition furnace, and the maintenance overhead traveling crane at factory building top is due to the impact by building vertical column, sintering machine head end position cannot be arrived, therefore overhead traveling crane can only be used to carry out the small part prefabricated section of the most afterbody of lifting point stove, most of prefabricated section at head and middle part then cannot lift, and manpower can only be used to install.Often the weight of block is all more than 500 kilograms usually for ignition furnace furnace roof prefabricated section, and what have even reaches 2 ~ 3 tons.Obvious use manpower is pullled in the burner hearth of ignition furnace, and is lifted on ignition furnace furnace top frame correspondence position, and its working strength is very large.And prefabricated section install also can be large due to the very little difficulty of construction that causes in space.As can be seen here, ignition furnace hoisting structure and the installation method of existing Integral prefabricated type screw rod location lift-on/lift-off system result in construction and installation working strength greatly, lift the defects such as long in time limit, setting accuracy is low and danger coefficient is high.
2, fragile prefabricated section: owing to cannot use hoisting prefabricated piece of overhead traveling crane at head and medium position, can only be transported to immediately below ignition furnace burner hearth installation site by manpower, is then lifted location with manual pulley device.In transport with hoisting process, prefabricated section and sintering machine bogie grates and breast board generation frictional impact, very easily damage the original structure of prefabricated section, the effect of heat insulation of Influential cases stove, even there will be the situation that prefabricated section is scrapped, increase ignition furnace manufacturing cost.
3, the swell increment fully absorbing prefabricated section is difficult to: prefabricated section at high temperature can expand.And use above-mentioned screw rod to locate lift-on/lift-off system attachment point stove prefabricated section, because prefabricated section is connected with furnace top frame by lifting nut in the installation site of furnace top frame, prefabricated section just cannot move, so the swell increment that can only produce under ignition furnace high temperature operating conditions by staying the method for dilatation joint to absorb it between prefabricated section and prefabricated section after installing.Dilatation joint Liu get Tai is wide, easily causing on burner hearth flame and coal gas goes here and there to throat platform, cause safety misadventure, dilatation joint stays too narrow, fully cannot absorb again the high-temperature expansion amount of prefabricated section, easily cause the prefabricated section after because of expansion mutually to extrude the quality accident such as screw rod fracture, furnace lining damage of formation.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides a kind of sintering ignition furnace prefabricated section that reduces to install labour intensity, shortening construction period, improve construction safety coefficient, the Integral prefabricated type ignition furnace hoisting structure improving ignition furnace lining quality and installation method thereof.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of Integral prefabricated type ignition furnace hoisting structure, comprise furnace top frame and multiple prefabricated section, each prefabricated section is connected with lifting screw rod, described furnace top frame is provided with many hanging slideways, the lifting screw rod upper end of each prefabricated section is provided with hanging board, described prefabricated section hang on hanging slideway by lifting screw rod and hanging board, and described hanging board can slide along hanging slideway.
Described hanging slideway comprises the first slideway along the longitudinal setting of ignition furnace and the second slideway that are positioned at ignition furnace both sides, and many sideslipwaies vertical with sintering pallet service direction between the first slideway and the second slideway, each sideslipway one end is communicated with described first slideway, and the other end is communicated with described second slideway.
Described first slideway and the second slideway are formed by an elongated slot steel and many short channel-section steels, and each short channel-section steel is all put up a bridge by the load in gate-shaped and is connected with elongated slot steel.
Described sideslipway is formed by two elongated slot steel, and described two elongated slot steel are put up a bridge by the load in gate-shaped and connected.
The width of described hanging slideway is S, and the width that described load is put up a bridge is D, and the width of described hanging board is L, S≤L≤D.
Seamless contact between described adjacent prefabricated section.
An installation method for Integral prefabricated type ignition furnace hoisting structure as above, comprises the following steps,
1) furnace top frame is installed;
2) one by one prefabricated section is installed;
When carrying out step 1), furnace top frame arranges many hanging slideways; Carry out step 2) time, prefabricated section is sling and makes lifting screw rod through hanging slideway, hanging board is installed on the lifting screw rod of prefabricated section, prefabricated section hung on hanging slideway by lifting screw rod and hanging board, then prefabricated section is slid onto along hanging slideway the position that ignition furnace furnace roof needs to install prefabricated section.
Compared with prior art, the invention has the advantages that:
Integral prefabricated type ignition furnace hoisting structure of the present invention, furnace top frame is provided with many hanging slideways, the lifting screw rod upper end of each prefabricated section is provided with hanging board, each prefabricated section is hung on after on hanging slideway by lifting screw rod and hanging board, ignition furnace furnace roof can be slided into along hanging slideway to need the installation site of prefabricated section is installed, form of construction work greatly reduced construction operation intensity so more in the past, and safety factor also increases, and shortened installation period; Carry out slippage again by after prefabricated block hanging, because now prefabricated section has been vacant state, therefore can avoid the situation that prefabricated section and sintering machine bogie grates or breast board collide and damage, the available protecting structural integrity of prefabricated section, ensure that ignition furnace lining total quality; After adopting this moveable hanging structure, all prefabricated sections all move freely along hanging slideway by hanging board, therefore reserved dilatation joint is not needed between contiguous prefabricated piece, prefabricated section moves by self when high-temperature expansion and absorbs swell increment, thus avoid and reserve burn with anger coal gas or prefabricated section of the improper furnace roof caused because of dilatation joint size and mutually extrude the situation generation forming the quality accidents such as screw rod fracture, furnace lining damage, substantially increase the safety factor of ignition furnace.Hanging slideway comprises the first slideway and the second slideway that are positioned at ignition furnace both sides, and the first slideway and the second slideway are longitudinally arranged along ignition furnace, therefore, first slideway and the second slideway have at least part to be positioned at the scope of work of factory building overhead traveling crane, when installing prefabricated section, can select nearby to be linked into from the first slideway or the second slideway in the installation site corresponding according to each prefabricated section, so both can save manpower, can the engineering time be saved again, improve the operating efficiency of ignition furnace.Integral prefabricated type ignition furnace hoisting structure installation method of the present invention, labour intensity is low, and safety factor is high, and operating efficiency is high, reliable in quality.
Accompanying drawing explanation
Fig. 1 is the front view of existing Integral prefabricated type ignition furnace hoisting structure.
Fig. 2 is the birds-eye view of existing Integral prefabricated type ignition furnace hoisting structure.
Fig. 3 is the A-A profile of Fig. 2.
Fig. 4 is the front view of Integral prefabricated type ignition furnace hoisting structure of the present invention.
Fig. 5 is the left view of Integral prefabricated type ignition furnace hoisting structure of the present invention.
Fig. 6 is the birds-eye view of Integral prefabricated type ignition furnace hoisting structure of the present invention.
Fig. 7 is the B-B profile of Fig. 6.
Fig. 8 is the structural representation adopting the channel-section steel oppositely arranged to form slideway.
Fig. 9 is the structural representation adopting I-beam section to form slideway.
In figure, each label represents:
1, furnace top frame; 2, prefabricated section; 3, screw rod is lifted; 4, nut is lifted; 5, hanging board; 6, dilatation joint; 7, load is put up a bridge; 11, slideway is hung; 111, the first slideway; 112, the second slideway; 113, sideslipway.
Detailed description of the invention
Fig. 4 to Fig. 7 shows a kind of Integral prefabricated type ignition furnace hoisting structure embodiment of the present invention, this hoisting structure comprises furnace top frame 1 and multiple prefabricated section 2, each prefabricated section 2 is connected with lifting screw rod 3, furnace top frame 1 is provided with many hanging slideways 11, lifting screw rod 3 upper end of each prefabricated section 2 is provided with hanging board 5, each prefabricated section 2 is hung on after on hanging slideway 11 by lifting screw rod 3 and hanging board 5, ignition furnace furnace roof can be slided into along hanging slideway 11 to need the installation site of prefabricated section 2 is installed, form of construction work greatly reduced construction operation intensity so more in the past, safety factor also increases, and shorten installation period, slippage is carried out again after being hung by prefabricated section 2, because now prefabricated section 2 has been vacant state, therefore can avoid the situation that prefabricated section 2 collides with sintering machine bogie grates or breast board and damages, the available protecting structural integrity of prefabricated section 2, ensure that ignition furnace lining total quality, after adopting this moveable hanging structure, all prefabricated sections 2 all move freely along hanging slideway 11 by hanging board 5, therefore be seamless contact between adjacent prefabricated section 2, do not need reserved dilatation joint 6, prefabricated section 2 moves by self when high-temperature expansion and absorbs swell increment, thus avoid and to cause because dilatation joint Liu get Tai is wide the burn with anger situation of coal gas of furnace roof to occur, substantially increase the safety factor of ignition furnace.
In the present embodiment, arrow shown in Fig. 6 is sintering pallet service direction, hanging slideway 11 comprises the first slideway 111 and the second slideway 112 longitudinally arranged along ignition furnace being positioned at ignition furnace both sides, and many sideslipwaies 113 vertical with sintering pallet service direction between the first slideway 111 and the second slideway 112, each sideslipway 113 one end is communicated with the first slideway 111, the other end is communicated with the second slideway 112, such first slideway 111 and the second slideway 112 have at least part to be positioned at the scope of work C of factory building overhead traveling crane, when installing prefabricated section 2, can select nearby to be linked into from the first slideway 111 or the second slideway 112 according to the installation site of each prefabricated section 2 correspondence, so both manpower can be saved, engineering time can be saved again, improve ignition furnace operating efficiency.
In the present embodiment, first slideway 111 and the second slideway 112 are formed by an elongated slot steel and many short channel-section steels, each short channel-section steel is all connected with elongated slot steel by the load bridging 7 in gate-shaped, sideslipway 113 is formed by two elongated slot steel, article two, elongated slot steel is connected by the load bridging 7 in gate-shaped, load is put up a bridge 7 for ensureing the load ability of furnace top frame 1, and its quantity and density can sets itself as required.The channel-section steel forming each slideway in the present embodiment all have employed the form that notch is oppositely arranged, in addition, also can adopt in other embodiments as shown in Figure 8 notch is set to reverse setting, or adopt as shown in Figure 9 form slideway with I-beam section (or H profile steel).The width of hanging slideway 11 is S, and the width of load bridging 7 is D, and the width of hanging board 5 is L, S≤L≤D, in the present embodiment, and S < L < D.
The installation method embodiment of a kind of Integral prefabricated type ignition furnace hoisting structure as above of the present invention, the method comprises the following steps,
1) furnace top frame 1 is installed;
2) prefabricated section 2 is installed; When carrying out step 1), furnace top frame 1 arranges many hanging slideways 11, carry out step 2) time, prefabricated section 2 is sling and makes lifting screw rod 3 through hanging slideway 11, hanging board 5 is installed on the lifting screw rod 3 of prefabricated section 2, prefabricated section 2 hung on hanging slideway 11 by lifting screw rod 3 and hanging board 5, then prefabricated section 2 is slid onto along hanging slideway 11 position that ignition furnace furnace roof needs to install prefabricated section 2.When hoisting prefabricated piece 2, can select nearby to be linked into from the first slideway 111 or the second slideway 112 according to the installation site of each prefabricated section 2 correspondence, so both can save manpower, and can the engineering time be saved again, improve ignition furnace operating efficiency.
Integral prefabricated type ignition furnace hoisting structure installation method of the present invention, labour intensity is low, and safety factor is high, and operating efficiency is high, reliable in quality.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (6)
1. an Integral prefabricated type ignition furnace hoisting structure, comprise furnace top frame (1) and multiple prefabricated section (2), each prefabricated section (2) is connected with lifting screw rod (3), it is characterized in that: described furnace top frame (1) is provided with many hanging slideways (11), described hanging slideway (11) comprises the first slideway (111) along the longitudinal setting of ignition furnace and the second slideway (112) that are positioned at ignition furnace both sides, and many sideslipwaies (113) vertical with sintering pallet service direction be positioned between the first slideway (111) and the second slideway (112), each sideslipway (113) one end is communicated with described first slideway (111), the other end is communicated with described second slideway (112), lifting screw rod (3) upper end of each prefabricated section (2) is provided with hanging board (5), described prefabricated section (2) hang in hanging slideway (11) by lifting screw rod (3) and hanging board (5), described hanging board (5) can slide along hanging slideway (11).
2. Integral prefabricated type ignition furnace hoisting structure according to claim 1, it is characterized in that: described first slideway (111) and the second slideway (112) are formed by an elongated slot steel and many short channel-section steels, each short channel-section steel all by the load in gate-shaped put up a bridge (7) be connected with elongated slot steel.
3. Integral prefabricated type ignition furnace hoisting structure according to claim 2, is characterized in that: described sideslipway (113) is formed by two elongated slot steel, and described two elongated slot steel to be put up a bridge (7) connection by load in gate-shaped.
4. Integral prefabricated type ignition furnace hoisting structure according to claim 3, is characterized in that: the width of described hanging slideway (11) is S, and the width of described load bridging (7) is D, and the width of described hanging board (5) is L, S≤L≤D.
5. Integral prefabricated type ignition furnace hoisting structure according to any one of claim 1 to 4, is characterized in that: seamless contact between described adjacent prefabricated section (2).
6. an installation method for the Integral prefabricated type ignition furnace hoisting structure according to any one of claim 1 to 5, comprises the following steps,
1) furnace top frame (1) is installed;
2) prefabricated section (2) is installed one by one;
It is characterized in that: when carrying out step 1), furnace top frame (1) arranges many hanging slideways (11); Carry out step 2) time, prefabricated section (2) is sling and makes lifting screw rod (3) through hanging slideway (11), hanging board (5) is installed on the lifting screw rod (3) of prefabricated section (2), prefabricated section (2) hung in hanging slideway (11) by lifting screw rod (3) and hanging board (5), then prefabricated section (2) is slid onto along hanging slideway (11) position that ignition furnace furnace roof needs installation prefabricated section (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454676.4A CN103183289B (en) | 2011-12-30 | 2011-12-30 | Integral prefabricated ignition furnace lifting structure and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110454676.4A CN103183289B (en) | 2011-12-30 | 2011-12-30 | Integral prefabricated ignition furnace lifting structure and mounting method thereof |
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| Publication Number | Publication Date |
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| CN103183289A CN103183289A (en) | 2013-07-03 |
| CN103183289B true CN103183289B (en) | 2015-04-08 |
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| CN201110454676.4A Active CN103183289B (en) | 2011-12-30 | 2011-12-30 | Integral prefabricated ignition furnace lifting structure and mounting method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB259491A (en) * | 1926-05-04 | 1926-10-14 | Charles Honnay | Improvements in arches for furnaces |
| US3888195A (en) * | 1973-08-02 | 1975-06-10 | Levi S Longenecker | Panelized suspended basic furnace roof |
| CN2241314Y (en) * | 1995-07-18 | 1996-11-27 | 中国建筑科学研究院建筑防火研究部 | Steel frame hung cast refractory furnace top structure for refractory test furnace |
| CN2612917Y (en) * | 2003-03-03 | 2004-04-21 | 中冶集团建筑研究总院 | Heating furnace flexible coupling roof |
-
2011
- 2011-12-30 CN CN201110454676.4A patent/CN103183289B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB259491A (en) * | 1926-05-04 | 1926-10-14 | Charles Honnay | Improvements in arches for furnaces |
| US3888195A (en) * | 1973-08-02 | 1975-06-10 | Levi S Longenecker | Panelized suspended basic furnace roof |
| CN2241314Y (en) * | 1995-07-18 | 1996-11-27 | 中国建筑科学研究院建筑防火研究部 | Steel frame hung cast refractory furnace top structure for refractory test furnace |
| CN2612917Y (en) * | 2003-03-03 | 2004-04-21 | 中冶集团建筑研究总院 | Heating furnace flexible coupling roof |
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| Publication number | Publication date |
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| CN103183289A (en) | 2013-07-03 |
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