CN106915909B - A kind of device and method of the interior knot stone roller of automatic pulverizing dead burned magnesia shaft furnace - Google Patents
A kind of device and method of the interior knot stone roller of automatic pulverizing dead burned magnesia shaft furnace Download PDFInfo
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- CN106915909B CN106915909B CN201710303192.7A CN201710303192A CN106915909B CN 106915909 B CN106915909 B CN 106915909B CN 201710303192 A CN201710303192 A CN 201710303192A CN 106915909 B CN106915909 B CN 106915909B
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- China
- Prior art keywords
- secondary air
- shaft furnace
- drill steel
- temperature alloy
- furnace
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
Abstract
The invention discloses the device and methods that stone roller is tied in a kind of automatic pulverizing dead burned magnesia shaft furnace, including shaft furnace furnace body, Secondary Air entrance, secondary air duct, shaft furnace workbench, on shaft furnace workbench drive system, hydraulic drive system and with pneumatic crushing system, the pneumatic crushing system is mainly made of air compressor, air accumulator and quartering hammer；The quartering hammer includes high-pressure cylinder, solenoid directional control valve and high-temperature alloy drill steel, on the workbench of the shaft furnace, the quartering hammer lower part of pneumatic crushing system is equipped with slideway, high-temperature alloy drill steel is inserted into stick together to dead burned magnesia knot in vertical kiln body by secondary air channel and is crushed, while being cooled down by Secondary Air to it.The present invention is adjusted broken impact force size, attack time and period, meets requirement of the furnace discharge conveyer self-emptying to dead burned magnesia lumpiness for the raw knot stone roller generated in the process of different shaft furnaces and different grade dead burned magnesias and outstanding furnace degree.
Description
Technical field
The present invention relates to raw material for refractory production technical field more particularly to a kind of automatic pulverizing dead burned magnesia shaft furnaces
The device and method of interior knot stone roller.
Background technique
Shaft furnace produces reheating magnesia in the process since the outstanding furnace accident that furnace charge knot stone roller generates is common problem, seriously
Influence burden direct motion.The main reason for furnace charge knot is cut or polish jade with an emery wheel is that there are silica, calcium oxide and iron oxide in raw material and fuel ash
Impurity are waited, impurity reacts with partial oxidation magnesium under high temperature, generates the mineral such as monticellite, dicalcium ferrite of low melting point
Deng.On the one hand these variations can make raw material generate liquid phase at calcination temperatures and then make the abundant sintering densification of dead burned magnesia；
On the other hand, dead burned magnesia is by the way that after clinkering zone, with the reduction of kiln temperature, the liquid phase of generation starts condensation-crystallization, weight
Burned magnesium oxide particle, which mutually bonds to be formed, has high-intensitive material stone roller, i.e. knot stone roller.When numerous material stone rollers are interleaved together, reheating oxidation
Magnesium cannot smoothly be run down, frame generates outstanding furnace in shaft furnace cooling zone.Once outstanding furnace problem occurs, that is, cause to produce thing
Therefore must just carry out stopping kiln explosion treatment material stone roller, frame is destroyed, is resumed production.On the one hand this method affects reheating oxidation
The continuous production of magnesium, reduces the production efficiency of enterprise, and it is difficult and dangerous on the other hand to handle outstanding furnace accident.
In order to solve the problems, such as the outstanding furnace of dead burned magnesia production process, the original that researcher cuts or polish jade with an emery wheel furnace charge knot, outstanding furnace generates
Reason has done a large number of experiments research.Result of study shows: the inflection point for the Strength Changes that dead burned magnesia knot sticks together is at 1200 DEG C or so, temperature
The intensity that knot sticks together when degree is higher than 1200 DEG C is lower, especially ties and is sticked together almost without intensity at 1400 DEG C or more.The reason is that 1200
DEG C or more when dead burned magnesia particle surface there are a small amount of liquid phase, these liquid phases play the lubrication between blocky dead burned magnesia work
With；When temperature is lower than 1000 ~ 1200 DEG C, as the liquid phase of temperature reduced in dead burned magnesia solidifies, intensity is gradually increased.Cause
This, disposes power breaking device, by the dead burned magnesia in the region in 1000-1200 DEG C of temperature region of dead burned magnesia shaft furnace
Material stone roller continuous crushing just can solve or mitigate dead burned magnesia shaft furnace because furnace charge knot sticks together the outstanding furnace accident of generation.
Summary of the invention
The present invention provides a kind of device and method of interior knot stone roller of automatic pulverizing dead burned magnesia shaft furnace, effectively solves reheating oxygen
Change the knot in magnesium shaft furnace production process and cuts or polish jade with an emery wheel outstanding furnace problem.
The purpose of the present invention is be achieved through the following technical solutions:
A kind of device of automatic pulverizing magnesite clinker shaft furnace knot stone roller of the present invention, including shaft furnace furnace body, are arranged in shaft furnace furnace body
The Secondary Air entrance of lower part, is arranged in the secondary air duct on the outside of Secondary Air entrance, and the shaft furnace of secondary air duct lower part is arranged in
Workbench, it is characterised in that: install the drive system being made of motor and speed reducer on shaft furnace workbench, be with driving
The hydraulic drive system connected of uniting and the pneumatic crushing system connecting with hydraulic drive system, the hydraulic drive system is by height
Pressure oil pump, oil cylinder, piston, high-pressure reversing valve and telescopic rod composition；The pneumatic crushing system is mainly by air compressor, storage
Gas tank and quartering hammer are formed；The quartering hammer includes high-pressure cylinder, solenoid directional control valve and high-temperature alloy drill steel, described
Shaft furnace workbench on, the quartering hammer lower part of pneumatic crushing system is equipped with slideway, and quartering hammer is placed on slideway and slideway is sliding
Dynamic connection；Quartering hammer high-temperature alloy drill steel is inserted into stick together to dead burned magnesia knot in vertical kiln body by secondary air channel and be carried out brokenly
It is broken, while it is cooled down by Secondary Air.
Preferably, it is respectively provided with the porous branch of support high-temperature alloy drill steel up and down in the Secondary Air entrance
Support.
Preferably, being equipped in the junction of the high-temperature alloy drill steel and secondary air duct can prevent Secondary Air from leaking outside
The round hollow heavy wall of free extension cover rod-type multi-joint telescoping sealing device, the round hollow heavy wall set of the free extension
It is fixedly connected at rod-type multi-joint telescoping sealing device one end and the external port of secondary air duct, the other end and high-temperature alloy drill steel
Tail portion is fixedly connected.
It preferably, is nickel-base alloy in the material of the high-temperature alloy drill steel, diameter is 60~80mm, and high temperature resistant is closed
The head of golden drill steel is in perfectly round cone.
It preferably, is 300mm in the secondary air duct interior diameter.
The method of a kind of automatic pulverizing magnesite clinker shaft furnace knot stone roller of the invention, it is characterised in that include the following steps:
1) Secondary Air entrance and secondary air duct there are four being set at the 10m height of ground in shaft furnace；
2) four secondary air duct lower parts, the armored concrete shaft furnace workbench of anti-high vibration resistance is built, in steel
Drive system, hydraulic drive system and pneumatic crushing system are installed, wherein hydraulic drive system on reinforced concrete shaft furnace workbench
Quartering hammer and secondary air duct are in same level in oil cylinder, piston, high-pressure reversing valve, telescopic rod and pneumatic crushing system in system
Center line；
3) length of the high-temperature alloy hammer drill steel in pneumatic crushing system is 2.7m, and diameter 80mm, stop working shape
When state, high-temperature alloy drill steel 1.1m frame is on two porous supports in secondary air intake vent, the head of high-temperature alloy drill steel
Apart from furnace wall 0.2m, in addition 1.6m is outside secondary air duct；
4) when starting broken every time, start drive system, hydraulic drive system is pushed away by the telescopic rod connecting with quartering hammer
For straight line forward with the movement of 2.0cm/s speed, high-temperature alloy drill steel enters in furnace body is crushed what knot sticked together to dynamic quartering hammer in slideway
Dead burned magnesia is crushed impact in power in 50~80MPa, stops after moving 1.2m, meanwhile, telescopic rod is recalled with 4.0/s, is driven
High temperature alloy drill steel returns to initial position out of furnace body, and primary fragmentation work is total back and forth to need 1.5min, is spaced 8.5min
Afterwards, broken work next time is re-started.
The present invention can also stick together state according to dead burned magnesia knot in shaft furnace, and broken period, crushing hammar drill rod are promoted speed
Degree, crushing hammar drill rod enter kiln body internal depth, quartering hammer withdraws from the computer that the running parameters such as speed are automatically controlled in input
It is interior, the broken period of setting.Drive system is connect with control device, hydraulic drive systems force pneumatic crushing system when being crushed
In quartering hammer advance in slideway, the high-temperature alloy drill steel being arranged in four Secondary Air entrances at the same enter it is right in furnace body
It is broken to tie the dead burned magnesia progress impact type that sticks together.Complete hydraulic drive system breaking pneumatic crushing system after primary fragmentation works
Broken hammer retracts, and high-temperature alloy drill steel is retracted in furnace wall from furnace body.Secondary Air plays cooling effect to high-temperature alloy drill steel, really
High-temperature alloy drill steel is protected to work normally under safe temperature.It is repeated, realizes larger in kiln according to the broken period of setting
Tie the effect that the dead burned magnesia to stick together is broken.
Beneficial effects of the present invention: the present apparatus is sustainable effectively to carry out impact cutting to dead burned magnesia knot stone roller in shaft furnace
It is broken, it can effectively prevent shaft furnace dead burned magnesia production process and form outstanding furnace, under guaranteeing that magnesia is in shaft furnace smoothly in production process
Row, meets requirement of the furnace discharge conveyer self-emptying to dead burned magnesia lumpiness；Be conducive to the full automatic continuous life of shaft furnace reheating magnesia
It produces, improves production efficiency；The knot stone roller generated during raw for different shaft furnaces and different grade dead burned magnesias and outstanding furnace degree,
Adjustable broken impact force size, attack time and period, adapt to various processes system；The present apparatus is made using overfiren air port
For the channel of high-temperature alloy drill steel, device structure is simple, manufacturing cost is honest and clean, operating cost is low.
Detailed description of the invention
Fig. 1 is a kind of apparatus structure schematic diagram of interior knot stone roller of automatic pulverizing dead burned magnesia shaft furnace.
In figure: 1- drive system, 2- hydraulically extensible system, 3- telescopic rod, the pneumatic crushing system of 4-, the round hollow heavy wall of 5-
Cover rod-type sealing device, 6- quartering hammer high-temperature alloy drill steel, 7- porous supporter, 8- furnace wall, 9- secondary air duct, 10-
Secondary Air entrance, 11- quartering hammer, 12- slideway, 13- shaft furnace workbench.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, a kind of device of automatic pulverizing magnesite clinker shaft furnace knot stone roller of the present invention, including shaft furnace furnace body, setting
In the Secondary Air entrance 10 of shaft furnace lower portion of furnace body, the secondary air duct 9 in 10 outside of Secondary Air entrance is set, is arranged in Secondary Air
The shaft furnace workbench 13 of pipeline lower part, it is characterised in that: install on shaft furnace workbench 13 and be made of motor and speed reducer
Drive system 1, the hydraulic drive system 2 being connect with drive system 1 and the pneumatic crushing system being connect with hydraulic drive system 2
4, drive system 1 is mainly used for driving according to the process control hydraulic drive system of setting and the work of pneumatic crushing device；It is described
Hydraulic drive system 2 be made of high-pressure oil pump, oil cylinder, piston, high-pressure reversing valve and telescopic rod 3；The pneumatic broken system
System is mainly made of air compressor, air accumulator and quartering hammer 11；The quartering hammer 11 includes high-pressure cylinder, electromagnetic switch
Valve and high-temperature alloy drill steel 6, on the workbench 13 of the shaft furnace, 11 lower part of quartering hammer of pneumatic crushing system is equipped with
Slideway 12, quartering hammer 11 are placed on slideway 12 and are slidably connected with slideway 12；Quartering hammer high-temperature alloy drill steel 6 passes through secondary air channel
Road 9 is inserted into vertical kiln body to stick together to dead burned magnesia knot and be crushed, while cooling down by Secondary Air to it, described in two
Secondary air piping interior diameter is 300mm.Hydraulic drive system 2, which undertakes, to be promoted the quartering hammer unit in pneumatic crushing system, recalls；
Pneumatic crushing system, which mainly undertakes, is crushed work to the knot dead burned magnesia that sticks together.
The present invention is respectively provided with the porous of support high-temperature alloy drill steel 6 up and down in the Secondary Air entrance 10
Support frame 7.When high-temperature alloy drill steel 6 is withdrawn from out of vertical kiln body, shaft furnace furnace body is retracted on the head of high-temperature alloy drill steel 6
Furnace wall 8 after, ride over open support frame 7, it is ensured that the 6 not bending of high-temperature alloy drill steel.
The present invention is equipped with and can prevent outside Secondary Air in the junction of the high-temperature alloy drill steel 6 and secondary air duct 9
The round hollow heavy wall of the free extension of leakage covers rod-type multi-joint telescoping sealing device 5, the round hollow thickness of the free extension
It is fixedly connected at wall set rod-type multi-joint telescoping sealing device end and the external port of secondary air duct 9, the other end and high-temperature alloy
6 tail portion of drill steel is fixedly connected.The diameter of the high-temperature alloy drill steel 6 is 60~80mm, the head of high-temperature alloy drill steel 6
In perfectly round cone.Round hollow heavy wall set rod-type multi-joint telescoping sealing device 5 with high-temperature alloy drill steel 6 into and out of and stretch
It out or shrinks, prevents high-pressure blast from spraying from 9 rear port of secondary air duct.
It is round-trip that the telescopic rod 3 that drive system 1 controls hydraulic telescopic device 2 pushes quartering hammer 4 to carry out straight line on slideway 12
Movement.Meanwhile the high-temperature alloy drill steel 6 on 9 internal porous support frame 7 of secondary air duct, in the secondary air duct of furnace wall 8
Straight line back and forth movement is carried out in 9.Multi-joint telescoping sealing device 5 be it is a kind of can with the hollow heavy wall loop bar of the more piece of free extension,
Tail portion is fixed at the port of secondary air duct 9, and head is fixedly connected with 6 tail portion of drill steel.
When the motor load electric current of one of 4 hydraulic feed devices is beyond design maximum current, 4 hydraulic pushing systems are certainly
It is dynamic to close, it prevents from burning due to motor overload.Change and advanced repeatedly by manually controlling 4 quartering hammers, retreated, until normal
It works again according to program setting afterwards.
Claims (5)
1. a kind of device of automatic pulverizing magnesite clinker shaft furnace knot stone roller, including shaft furnace furnace body, are arranged in the two of shaft furnace lower portion of furnace body
Secondary wind entrance, is arranged in the secondary air duct on the outside of Secondary Air entrance, and the shaft furnace workbench of secondary air duct side is arranged in,
It is characterized in that installing the drive system being made of motor and speed reducer, the liquid connecting with drive system on shaft furnace workbench
Pressure moving system and the pneumatic crushing system connecting with hydraulic drive system, the hydraulic drive system is by high-pressure oil pump, oil
Cylinder, piston, high-pressure reversing valve and telescopic rod composition；The pneumatic crushing system mainly by air compressor, air accumulator and is broken
Broken hammer is formed；The quartering hammer includes high-pressure cylinder, solenoid directional control valve and high-temperature alloy drill steel, in the shaft furnace
On workbench, the quartering hammer lower part of pneumatic crushing system is equipped with slideway, and quartering hammer is placed on slideway and is slidably connected with slideway；It is broken
Broken hammer high-temperature alloy drill steel is inserted into stick together to dead burned magnesia knot in vertical kiln body by secondary air duct and is crushed, simultaneously
It is cooled down by Secondary Air.
2. the device of automatic pulverizing magnesite clinker shaft furnace knot stone roller according to claim 1, it is characterised in that described two
The open support frame of support high-temperature alloy drill steel is respectively provided in secondary wind entrance up and down.
3. the device of automatic pulverizing magnesite clinker shaft furnace knot according to claim 1 stone roller, it is characterised in that described resistance to
The junction of high temperature alloy drill steel and secondary air duct is equipped with the round hollow heavy wall for the free extension that can prevent Secondary Air from leaking outside
Rod-type multi-joint telescoping sealing device is covered, the round hollow heavy wall of the free extension covers rod-type multi-joint telescoping sealing device one end
It is fixedly connected at the external port of secondary air duct, the other end is fixedly connected with high-temperature alloy drill steel tail portion.
4. the device of automatic pulverizing magnesite clinker shaft furnace knot according to claim 1 stone roller, it is characterised in that described resistance to
The material of high temperature alloy drill steel is nickel-base alloy, and diameter is 60~80mm, and the head of high-temperature alloy drill steel is in perfectly round cone.
5. a kind of method of automatic pulverizing magnesite clinker shaft furnace knot stone roller, it is characterised in that include the following steps:
1) Secondary Air entrance and secondary air duct there are four being set at the 10m height of ground in shaft furnace；
2) every secondary air duct side, the armored concrete shaft furnace workbench of anti-high vibration resistance is built, it is mixed in reinforcing bar
Drive system, hydraulic drive system and pneumatic crushing system are installed on solidifying soil shaft furnace workbench, wherein in hydraulic drive system
Quartering hammer and secondary air duct are in same level center in oil cylinder, piston, high-pressure reversing valve, telescopic rod and pneumatic crushing system
Line；
3) length of the high-temperature alloy hammer drill steel in pneumatic crushing system is 2.7m, diameter 80mm, when stop working state,
High-temperature alloy drill steel 1.1m frame is on two porous supports in Secondary Air entrance, the head distance furnace of high-temperature alloy drill steel
Wall 0.2m, in addition 1.6m is outside secondary air duct；
4) when starting broken every time, start drive system, hydraulic drive system is pushed broken by the telescopic rod connecting with quartering hammer
For straight line forward with the movement of 2.0cm/s speed, high-temperature alloy drill steel enters in furnace body is crushed the reheating that knot sticks together to broken hammer in slideway
Magnesia is crushed impact force in 50~80MPa, stops after moving 1.2m, meanwhile, telescopic rod is recalled with 4.0 cm/s, is driven high
Temperature alloy drill steel returns to initial position out of furnace body, and primary fragmentation work is total back and forth to need 1.5min, after being spaced 8.5min,
Re-start broken work next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710303192.7A CN106915909B (en) | 2017-05-03 | 2017-05-03 | A kind of device and method of the interior knot stone roller of automatic pulverizing dead burned magnesia shaft furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710303192.7A CN106915909B (en) | 2017-05-03 | 2017-05-03 | A kind of device and method of the interior knot stone roller of automatic pulverizing dead burned magnesia shaft furnace |
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| Publication Number | Publication Date |
|---|---|
| CN106915909A CN106915909A (en) | 2017-07-04 |
| CN106915909B true CN106915909B (en) | 2019-08-02 |
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| CN201710303192.7A Active CN106915909B (en) | 2017-05-03 | 2017-05-03 | A kind of device and method of the interior knot stone roller of automatic pulverizing dead burned magnesia shaft furnace |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE834494A (en) * | 1974-10-15 | 1976-02-02 | PROCESS FOR CALCINING AND SRITING MATERIALS IN PIECES AND TANK OVENS FOR IMPLEMENTING THIS PROCESS | |
| JP5037900B2 (en) * | 2006-11-02 | 2012-10-03 | 株式会社チサキ | Vertical firing furnace |
| CN103525494A (en) * | 2013-01-18 | 2014-01-22 | 辽宁科技大学 | Light calcined magnesia combined broken petroleum coke sphere serving as fuel for sintering magnesia and preparation method thereof |
| CN106045345A (en) * | 2016-08-08 | 2016-10-26 | 辽宁信威环保科技有限公司 | Dumbbell-shaped dead burned magnesia roasting kiln |
| CN106123620A (en) * | 2016-08-09 | 2016-11-16 | 辽宁信威环保科技有限公司 | Dead burned magnesia roasting kiln knot stone roller breaker |
| CN206751665U (en) * | 2017-05-03 | 2017-12-15 | 辽宁科技大学 | The device of knot stone roller in a kind of automatic pulverizing dead burned magnesia shaft furnace |
-
2017
- 2017-05-03 CN CN201710303192.7A patent/CN106915909B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE834494A (en) * | 1974-10-15 | 1976-02-02 | PROCESS FOR CALCINING AND SRITING MATERIALS IN PIECES AND TANK OVENS FOR IMPLEMENTING THIS PROCESS | |
| JP5037900B2 (en) * | 2006-11-02 | 2012-10-03 | 株式会社チサキ | Vertical firing furnace |
| CN103525494A (en) * | 2013-01-18 | 2014-01-22 | 辽宁科技大学 | Light calcined magnesia combined broken petroleum coke sphere serving as fuel for sintering magnesia and preparation method thereof |
| CN106045345A (en) * | 2016-08-08 | 2016-10-26 | 辽宁信威环保科技有限公司 | Dumbbell-shaped dead burned magnesia roasting kiln |
| CN106123620A (en) * | 2016-08-09 | 2016-11-16 | 辽宁信威环保科技有限公司 | Dead burned magnesia roasting kiln knot stone roller breaker |
| CN206751665U (en) * | 2017-05-03 | 2017-12-15 | 辽宁科技大学 | The device of knot stone roller in a kind of automatic pulverizing dead burned magnesia shaft furnace |
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| CN106915909A (en) | 2017-07-04 |
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Effective date of registration: 20211009 Address after: Yangdian village, pailou town, Haicheng City, Anshan City, Liaoning Province Patentee after: HAICHENG PENGCHENG MAGNESIUM MINING Co.,Ltd. Address before: 114051 No. 185 Qianshan Middle Road, hi tech Zone, Liaoning, Anshan Patentee before: University of Science and Technology Liaoning |