CN104671677B - A kind of construction method of Mialz lime kiln suspension cylinder - Google Patents

A kind of construction method of Mialz lime kiln suspension cylinder Download PDF

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CN104671677B
CN104671677B CN201310609678.5A CN201310609678A CN104671677B CN 104671677 B CN104671677 B CN 104671677B CN 201310609678 A CN201310609678 A CN 201310609678A CN 104671677 B CN104671677 B CN 104671677B
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baking
suspension cylinder
castable
heating wire
lime kiln
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CN104671677A (en
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徐铁权
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MCC5 Group Shanghai Corp Ltd
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MCC5 Group Shanghai Corp Ltd
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Abstract

A kind of construction method of Mialz lime kiln suspension cylinder, it is characterised in that comprise the following steps:The prefabricated apparatus for baking of a, b install casting mold and the construction of suspension cylinder castable, and c removes mould and prefabricated apparatus for baking is placed in into castable bottom, and d access PLC automatic control systems simultaneously carry out building by laying bricks or stones for baking and e magnesia bricks.The construction method of the Mialz lime kiln suspension cylinder of the present invention has construction procedure reasonable in design, simple to operate, the quality of Mialz lime kiln suspension cylinder is greatly improved, reduce repair rate, service life of kiln body is improved, the advantages of long-term effect is obtained larger long-term gain and won competitiveness with less cost.

Description

A kind of construction method of Mialz lime kiln suspension cylinder
Technical field
The present invention relates to a kind of construction method in limekiln, is a kind of applying for Mialz lime kiln suspension cylinder specifically Work method.
Background technology
Mialz lime kiln is a kind of double thorax cocurrent heat accumulating type limekilns, and wherein suspension cylinder is mostly important in the limekiln Structure.In the production process in limekiln, its underpart structure is the structure of castable+magnesia brick, and long-term experience lime stone is frequent Shock, easily damage.The construction process of in general Mialz lime kiln suspension cylinder is first progress castable construction, is then being poured Build magnesia brick by laying bricks or stones in material feeding surface top.The country has had been introduced by a part of Mialz lime kiln at present, and its follow-up introduction will also enter One step expands, and domestic conventional Mialz lime kiln suspension cylinder construction method be after castable is constructed and terminates natural curing, Proceed by building by laying bricks or stones for top magnesia brick.Due to being stirred in castable work progress using water, castable inside configuration contains There is substantial amounts of free water, during later stage baker, these free waters are combined after being evaporated with magnesia brick, make magnesia brick that aquation occur Effect, cause magnesia brick cracking, intensity decreases so that the position is as part the most fragile in limekiln, it is necessary to frequently examine The production in limekiln could be maintained by repairing.
Therefore the construction method of known Mialz lime kiln suspension cylinder there are problems that above-mentioned a variety of inconvenience and.
The content of the invention
The purpose of the present invention, it is the wheat Wurz for proposing that a kind of prefabricated apparatus for baking evaporation castable moisture builds magnesia brick by laying bricks or stones again The construction method of limekiln suspension cylinder.
To achieve the above object, technical solution of the invention is:
A kind of construction method of Mialz lime kiln suspension cylinder, it is characterised in that comprise the following steps:
A, prefabricated apparatus for baking, is comprised the steps of:
(1)According to the design drawing of Mialz lime kiln suspension cylinder, prefabricated some apparatus for baking, apparatus for baking uses band steel (1)Make frame and make rectangle apparatus for baking framework, the bottom of apparatus for baking sets supportive structure to carry insulating brick;
(2)Some diatomite insulating bricks are put into each band steel framework, after insulating brick is put into, are slotted on insulating brick, And reserved wiring hole;The width and depth of fluting determine that, to be embedded in heating wire, wiring hole stays in electricity according to the diameter of heating wire The position of heated filament termination, but to keep away face and be contacted with band steel;
(3)Two heating wire are provided, its power is 2.5kw, 3kw, and heating wire is placed in diatomite insulating brick groove;
B, casting mold and the construction of suspension cylinder castable are installed
Casting mold is installed according to the design drawing of Mialz lime kiln suspension cylinder and each hung by code requirement Cylinder castable is constructed;According to 90 ° of indexing, 4 internal temperature sensors are set on each suspension cylinder(13), during detecting baking Temperature inside suspension cylinder castable;
C, remove mould and prefabricated apparatus for baking is placed in castable bottom
Prefabricated apparatus for baking is placed in suspension cylinder castable bottom after dismounting mould, apparatus for baking surface is poured into a mould with suspension cylinder Material is separated by a certain distance between surface, places steady and after connecting circuit, is closed castable with heat-barrier material, and each outstanding Hang and lead to 1 external temperature sensor of setting at center-aisle outside cylinder(14)To measure castable external temperature;Pass through detection The temperature of the inside and outside environment of castable, controls its internal-external temperature difference;Provision for thermal insulation when toasting castable is under castable Portion sets up steel pipe scaffold, lays thermal insulation board on scaffold top, then apparatus for baking is placed on thermal insulation board, the two of castable Side is also laminated using thermal insulation board, and the space of both sides is blocked, and reduces the heat exchange between castable baking region and perimeter;
D, access PLC automatic control system and toasted
Main cables access PLC control system, and by PLC control system pull-out separated time cable, the 2.5kw on each apparatus for baking is electric Heated filament is simultaneously connected to a separated time cable, is uniformly controlled, and same 3kw heating wire is simultaneously connected to another separated time cable and carries out unified control System, the separated time cable of 2.5kw and 3kw heating wire are then respectively controlled by PLC control system;
E, magnesia brick is built by laying bricks or stones
Closing heat-barrier material used is removed in castable baking after terminating, removed circuit, removed oven, carried out after cleaning Castable top magnesia brick is built by laying bricks or stones, completes the construction of Mialz lime kiln suspension cylinder.
The construction method of the Mialz lime kiln suspension cylinder of the present invention can also be using following technical measures come further Realize.
Foregoing method, wherein each independent control is switched on or switched off two heating wire.
The construction method of the Mialz lime kiln suspension cylinder of the present invention can also be using following technical measures come further Realize.
Foregoing method, wherein two heating wire are alternately connection, or be powered simultaneously.
Foregoing method, wherein the distance between the apparatus for baking surface and suspension cylinder castable surface are 200- 250mm。
After adopting the above technical scheme, the construction method of the Mialz lime kiln suspension cylinder of the present invention has advantages below:
1st, construction procedure is reasonable in design, simple to operate;
2nd, the quality of Mialz lime kiln suspension cylinder is greatly improved, reduces repair rate, improves service life of kiln body;
3rd, from the point of view of long-term effect, larger long-term gain can be obtained with less cost, is created for whole production process Benefit has been made, has won competitiveness.
Brief description of the drawings
Fig. 1 is the apparatus for baking structural representation of the embodiment of the present invention;
The closing provision for thermal insulation schematic diagram taken when Fig. 2 is the baking of the embodiment of the present invention;
Fig. 3 is that the suspension cylinder temperature sensor of the embodiment of the present invention arranges schematic diagram;
Fig. 4 is the drying out curve figure of the embodiment of the present invention.
In figure:1 band steel, 2 diatomite insulating bricks, 3 first heating wire, 4 second heating wire, 5 Low Cement Castables, 6 insulations Material, 7 platforms, 8 support columns, 9 insulating bricks, 10 heating wire, 11 suspension cylinders, 12 center-aisles, 13 internal temperature sensors, outside 14 Portion's temperature sensor.
Embodiment
With reference to embodiments and its accompanying drawing illustrates further to the present invention.
Embodiment 1
The construction method of the Mialz lime kiln suspension cylinder of the present invention comprises the following steps:
A, prefabricated apparatus for baking, is comprised the steps of:
Referring now to Fig. 1, Fig. 1 is the apparatus for baking structural representation of the embodiment of the present invention.
(1)According to the prefabricated some apparatus for baking of the design drawing of Mialz lime kiln suspension cylinder, as illustrated, the baking Device makes the frame of apparatus for baking using 30*3mm band steel 1, and frame bottom sets supportive structure to be used to carry insulating brick, side Frame forms rectangle band steel frame 500*372mm areas after making;
(2)Be put into 6 pieces of 230*114*64mm diatomite insulating brick in each band steel inframe, after insulating brick is put into, every Slotted on hot brick by three-back-shaped layout, and reserved wiring hole;The width of fluting and depth according to the diameter of heating wire come determine with Embedded heating wire, slot be 10mm*10mm square groove, wiring hole stays in the position of heating wire termination, but to keep away face with it is flat Steel contacts;
(3)Two heating wire are provided, its power is 2.5kw, 3kw, heating wire is placed in the diatomite that is parallel to each other every In hot brick groove;Each independent control is switched on or switched off two heating wire;Two heating wire are alternately connection, or simultaneously It is powered.
B, casting mold and the construction of suspension cylinder castable are installed
Casting mold is installed according to the design drawing of Mialz lime kiln suspension cylinder and each hung by code requirement Cylinder castable is constructed;According to 90 ° of indexing, 4 internal temperature sensors are set on each suspension cylinder(13), during detecting baking Temperature inside suspension cylinder castable;
C, remove mould and prefabricated apparatus for baking is placed in castable bottom
Prefabricated apparatus for baking is placed in suspension cylinder castable bottom after dismounting mould, apparatus for baking surface is poured into a mould with suspension cylinder Expect to place at a distance of be 250mm between surface steady and after connecting circuit, closed castable with heat-barrier material, and hanged each Hang outside cylinder to lead at center-aisle and 1 external temperature sensor 14 is set to measure castable external temperature;Poured by detection The temperature of the inside and outside environment of material feeding, the control of internal-external temperature difference can be carried out;Provision for thermal insulation during castable is toasted, is being poured into a mould Steel pipe scaffold is set up in material bottom, and thermal insulation board is laid on scaffold top, then oven is placed on thermal insulation board, keeps baking Distance 200mm-250mm between the upper surface and castable lower surface of stove, the both sides of castable are also laminated using thermal insulation board, by two The space closure of side, reduces the heat exchange between castable baking region and perimeter;
D, access PLC automatic control system and toasted
Main cables access PLC control system, pull out separated time cable by PLC control system, the 2.5kw electric heating on each oven Silk is simultaneously connected to a separated time cable, is uniformly controlled, and same 3kw heating wire is simultaneously connected to another separated time cable and is uniformly controlled, 2.5kw then it is respectively controlled with the separated time cable of 3kw heating wire by PLC control system.After circuit communication, access PLC is controlled automatically System processed, input temp control program;Two heating wire can be also powered simultaneously with alternate energisation, be completed as requested whole Baking process, the thinking of control are if baking temperature is higher than design temperature, stop heating by PLC system disconnecting circuit, if Temperature is lower than design temperature, then connects circuit and continue to heat, two control circuits of 2.5kw and 3kw can be with independent role, also can phase Interaction.Carried out during baking according to previously given baking curve, the data of the temperature inside and out it are inputted by sensor On the display external to its, controlled according to the data transactions PLC of display;
E, magnesia brick is built by laying bricks or stones
Closing heat-barrier material used is removed in castable baking after terminating, removed circuit, removed oven, carried out after cleaning Castable top magnesia brick is built by laying bricks or stones, completes the construction of Mialz lime kiln suspension cylinder.
The present invention has substantive distinguishing features and significant technological progress, the construction of Mialz lime kiln suspension cylinder of the invention Method work progress is simple, greatly improves the integral construction quality of suspension cylinder.The efficiency in whole production process is improved, Reduce repair rate.From the point of view of long-term effect, larger long-term gain can be obtained with less cost, entirely to produce Journey creates benefit, wins competitiveness.
Above example is used for illustrative purposes only, rather than limitation of the present invention, the technology people about technical field Member, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, it is all equivalent Technical scheme should also belong to scope of the invention, should be limited by each claim.

Claims (4)

1. a kind of construction method of Mialz lime kiln suspension cylinder, it is characterised in that comprise the following steps:
A, prefabricated apparatus for baking, is comprised the steps of:
(1)According to the design drawing of Mialz lime kiln suspension cylinder, prefabricated some apparatus for baking, apparatus for baking uses band steel(1) Make frame and make rectangle apparatus for baking framework, the bottom of apparatus for baking sets supportive structure to carry insulating brick;
(2)Some diatomite insulating bricks are put into each band steel framework, after insulating brick is put into, are slotted on insulating brick, and in advance Stay wiring hole;The width and depth of fluting determine that, to be embedded in heating wire, wiring hole stays in heating wire according to the diameter of heating wire The position of termination, but to avoid contacting with band steel;
(3)Two heating wire are provided, its power is 2.5kw, 3kw, and heating wire is placed in diatomite insulating brick groove;
B, casting mold and the construction of suspension cylinder castable are installed
Install casting mold according to the design drawing of Mialz lime kiln suspension cylinder and carry out each suspension cylinder by code requirement and pour Material feeding is constructed;According to 90 ° of indexing, 4 internal temperature sensors are set on each suspension cylinder(13), hung when being toasted with detection Temperature inside cylinder castable;
C, remove mould and prefabricated apparatus for baking is placed in castable bottom
Prefabricated apparatus for baking is placed in suspension cylinder castable bottom, apparatus for baking surface and suspension cylinder castable table after dismounting mould It is separated by a certain distance between face, places steady and after connecting circuit, is closed castable with heat-barrier material, and in each suspension cylinder 1 external temperature sensor of setting at center-aisle is led in outside(14)To measure castable external temperature;Poured into a mould by detecting Expect the temperature of inside and outside environment, control its internal-external temperature difference;Provision for thermal insulation when toasting castable is to be taken in castable bottom If steel pipe scaffold, thermal insulation board is laid on scaffold top, then apparatus for baking is placed on thermal insulation board, the both sides of castable are also It is laminated using thermal insulation board, the space of both sides is blocked, reduces the heat exchange between castable baking region and perimeter;
D, access PLC automatic control system and toasted
Main cables access PLC control system, pull out separated time cable by PLC control system, the 2.5kw heating wire on each apparatus for baking And a separated time cable is connected to, and it is uniformly controlled, same 3kw heating wire is simultaneously connected to another separated time cable and is uniformly controlled, The separated time cable of 2.5kw and 3kw heating wire is then respectively controlled by PLC control system;
E, magnesia brick is built by laying bricks or stones
Closing heat-barrier material used is removed in castable baking after terminating, removed circuit, removed oven, poured into a mould after cleaning Material top magnesia brick is built by laying bricks or stones, completes the construction of Mialz lime kiln suspension cylinder.
2. the construction method of Mialz lime kiln suspension cylinder as claimed in claim 1, it is characterised in that two heating wire Respective independent control is switched on or switched off.
3. the construction method of Mialz lime kiln suspension cylinder as claimed in claim 1, it is characterised in that two heating wire Alternately to connect, or it is powered simultaneously.
4. the construction method of Mialz lime kiln suspension cylinder as claimed in claim 1, it is characterised in that the apparatus for baking table The distance between face and suspension cylinder castable surface are 200-250mm.
CN201310609678.5A 2013-11-27 2013-11-27 A kind of construction method of Mialz lime kiln suspension cylinder Active CN104671677B (en)

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Publication number Priority date Publication date Assignee Title
CN111271977B (en) * 2020-02-11 2021-11-19 包头钢铁(集团)有限责任公司 Repair method for prefabricated module at bottom of suspension cylinder of Maerz lime kiln

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201553701U (en) * 2009-11-16 2010-08-18 中冶焦耐(大连)工程技术有限公司 Coke dry quenching oven housing with novel structure
CN103307882A (en) * 2013-06-03 2013-09-18 广西华锐钢铁工程设计咨询有限责任公司 Maerz kiln suspension cylinder liner body

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201553701U (en) * 2009-11-16 2010-08-18 中冶焦耐(大连)工程技术有限公司 Coke dry quenching oven housing with novel structure
CN103307882A (en) * 2013-06-03 2013-09-18 广西华锐钢铁工程设计咨询有限责任公司 Maerz kiln suspension cylinder liner body

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
600吨麦尔兹白灰窑施工要点;王福利等;《结构与设备安装》;20080731;第22-23页 *
麦尔兹并流式石灰窑悬挂缸的设计及应用;焦剑锋等;《建筑与结构设计》;20111231;第33-35页 *
麦尔兹石灰窑长寿炉龄之我见;何福礼;《南方金属》;20131031(第194期);第54-57页 *

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