CN104711419B - The cooling cylinder of reduced iron rotation drum type cooling machine - Google Patents
The cooling cylinder of reduced iron rotation drum type cooling machine Download PDFInfo
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- CN104711419B CN104711419B CN201510153819.6A CN201510153819A CN104711419B CN 104711419 B CN104711419 B CN 104711419B CN 201510153819 A CN201510153819 A CN 201510153819A CN 104711419 B CN104711419 B CN 104711419B
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Abstract
The present invention relates to a kind of cooling cylinder of reduced iron rotation drum type cooling machine, it is mainly used in metallurgical mine industry, reduced iron pelletizing, agglomerates of sintered pellets being cooled down.Including cylinder（1）Be fixed on cylinder（1）The a plurality of cooling pipe of inwall, cooling pipe is connected with water supplying unit and backwater unit, and cooling pipe is in cylinder（1）Inwall formed promote material with cylinder（1）The concaveconvex structure rotating.Because cooling pipe forms concaveconvex structure, effectively increase heat exchange area, and cooling pipe is fixed on cylinder（1）On inwall, can be to cylinder（1）Inwall is cooled down, cylinder（1）Temperature is low, deformation is little, even more important concaveconvex structure promotes material with cylinder（1）Shed still further below after turning to certain altitude, it is to avoid during barrel body rotation, material slides in cylinder body bottom, enhances the blending of material and heat transfer is distributed in cylinder so that material is more scattered（1）Interior, improve heat transfer effect.
Description
Technical field
The present invention relates to a kind of reduced iron rotation drum type cooling machine, particularly to a kind of reduced iron rotation drum type cooling machine
Cooling cylinder, is mainly used in metallurgical mine industry, reduced iron pelletizing, agglomerates of sintered pellets being cooled down.
Background technology
Cooling is one of operation of calcining reduction iron process.The temperature through rotary hearth furnace or rotary kiln outlet for the DRI pelletizing
Up to 1100 DEG C of degree, needs are airtight to be cooled to less than 300 DEG C, it is to avoid air oxidation met at high temperature by the ferrum in reduced iron pelletizing.
At present, most of iron company is cooled down to high temperature pelletizing using rotation drum type cooling machine：High temperature pelletizing enters band through chute
There is the cooling cylinder at inclination angle, cooling cylinder rotates, material moves to discharge end by feed end；Using cooling water direct spray cylinder external body
Reach cooling effect.This type of cooling comes with some shortcomings：（1）Heat transfer type is with the conduction of heat between material and cylinder and cold
But, based on the thermal convection current between water and cylinder, complex heat transfer coefficient is than relatively low；（2）Cylinder revolution when, material easy cylinder bottom
Slide in portion, the transmission of heat by contact Area comparison between material and cylinder is few；（3）The heat of material needs to pass to cooling through cylinder
Water, because the wall thickness of cylinder is larger, thus barrel temperature is higher, it is serious to deform.Because cooling effectiveness is low, the diameter of cylinder and length
Degree is very big, and water spray is also very big.CN101787435A discloses " efficient spray rotation drum type cooling machine for reduced iron ", its cylinder
It is made up of cooling cylinder, front end cylinder and tail end cylinder；Front end cylinder and tail end cylinder are double-layer barrel, in this double-layer barrel
Using spray cooling；The drum surface of whole cooling unit is atomized cooling and covers.Because whole cylinder is atomized water droplet parcel,
It is effectively protected cylinder, reduce deformation, also improve operating rate and the reliability of equipment.But this technology is to inner barrel
Material movement and heat transfer situation are not improved.
Content of the invention
The technical problem to be solved in the present invention is：Overcome the deficiencies in the prior art, a kind of simple and compact for structure, heat exchange is provided
Ability is strong, cooling cylinder that is consuming the few reduced iron rotation drum type cooling machine of water.
The technical solution adopted for the present invention to solve the technical problems is：The cooling cylinder of this reduced iron rotation drum type cooling machine
Body, including cylinder and a plurality of cooling pipe being fixed on cylinder inboard wall, cooling pipe is connected with water supplying unit and backwater unit, cold
But pipeline forms, in the inwall of cylinder, the concaveconvex structure promoting material with barrel body rotation.Because cooling pipe forms concaveconvex structure,
Effectively increase heat exchange area, and cooling pipe is fixed on cylinder inboard wall, cylinder inboard wall can be cooled down, cylinder
Temperature is low, deformation is little, and even more important concaveconvex structure promotes material to shed still further below with after barrel body rotation to certain altitude, it is to avoid
During barrel body rotation, material slides in cylinder body bottom, enhances the blending of material and heat transfer so that material is more scattered
It is distributed in cylinder, improve heat transfer effect although existing cylinder to promote material to advance in inner side setting helical fin, so
And helical fin is to promote material axial movement, material remains slip in the smooth inwall of cylinder, and material remains collection
In in the bottom of cylinder it is impossible to rotate with cylinder, described concaveconvex structure solves this problem well.
Preferably, described cooling pipe includes cooling half pipe, and cooling half pipe forms a plurality of water channel with cylinder inboard wall consolidation.Cold
But semicanal defines described concaveconvex structure, and cooling half pipe can make cooling water directly by the contact internal walls of cylinder, more efficient
Reduction cylinder temperature.
Preferably, described cooling pipe also includes a point water semicanal, changed course semicanal and charge for remittance semicanal, and point water semicanal is located at cylinder
Consolidate on the inwall of discharge end and with cylinder inboard wall and form water channel, charge for remittance semicanal is located on the inwall of cylinder discharge end and and cylinder
Inwall consolidation forms water channel, and changed course semicanal is located on the inwall of cylinder feed end and is consolidated with cylinder inboard wall and forms water annulus,
One end of cooling half pipe is all connected with changed course semicanal, the other end connection point water semicanal of part cooling half pipe, remaining cooling half pipe
The other end connection charge for remittance semicanal, water supplying unit with divide a water semicanal connect, backwater unit is connected with charge for remittance semicanal.Cooling half pipe quilt
It is divided into least one set inlet pipeline and least one set water return pipeline, cooling water is sent into water inlet pipe by a point water semicanal by water supplying unit
Road, the cooling water in inlet pipeline enters water return pipeline through changed course semicanal, and the cooling water in water return pipeline is through charge for remittance semicanal
Enter backwater unit to discharge, one is to extend the time in cylinder for the cooling water such that it is able to be heated to cooling water higher
Temperature, and reduce volume and the floor space of integral device, two is the discharging that point water semicanal and charge for remittance semicanal are located at cylinder
End, consequently facilitating water supplying unit and backwater unit being arranged on the discharge end of cylinder, being so easy to feeding chute and being connected with cylinder,
And it is easy for installation.
Preferably, described point of water semicanal and charge for remittance semicanal all have multiple, and point water semicanal and charge for remittance semicanal alternately set successively
Put, cooling half pipe is corresponding be divided into multigroup.Multigroup cooling half pipe is divided into multigroup inlet pipeline and multigroup water return pipeline, inlet pipeline
Connection point water semicanal, water return pipeline connects charge for remittance semicanal, and inlet pipeline and water return pipeline are arranged alternately thus ensureing the temperature of cylinder
Degree uniformly, reduces deformation.
Preferably, described cooling half pipe, the cross section of point water semicanal, charge for remittance semicanal and changed course semicanal are semicircle or U
Shape.
Preferably, the tube wall clear spacing between two adjacent described cooling half pipes is 20 ~ 60mm.
Preferably, the diameter parallel of the axis of described cooling half pipe and cylinder.
Preferably, described water supplying unit includes outer tube and radial direction water inlet pipe, and backwater unit includes inner tube and radial direction return pipe,
Outer tube and inner tube are located on the axis of cylinder discharge end, and inner tube is located at the inside of outer tube, outer tube pass through radial direction water inlet pipe with every
One point of water semicanal communicates, and inner tube is communicated with each charge for remittance semicanal by radial direction return pipe.Outer tube and inner tube go out positioned at cylinder
On the axis at material end, and inner tube is located at the inside of outer tube, is easy to connect swivel joint, thus ensureing that cylinder is managed in rotary course
The reliability that road connects.
Compared with prior art, the technique scheme of the present invention is had an advantageous effect in that：
1st, because cooling pipe forms concaveconvex structure, effectively increase heat exchange area, and cooling pipe is fixed on cylinder
On inwall, cylinder inboard wall can be cooled down, the temperature of cylinder is low, deformation is little, and even more important, concaveconvex structure promotes material
Shed still further below with after barrel body rotation to certain altitude, it is to avoid during barrel body rotation, material slides in cylinder body bottom, strengthening
The blending of material and heat transfer, so that material is more scattered is distributed in cylinder, improve heat transfer effect although existing cylinder
Body to promote material to advance in inner side setting helical fin, but helical fin is to promote material axial movement, and material is in cylinder
The smooth inwall of body remains slip, and material remains the bottom concentrating on cylinder it is impossible to rotate with cylinder, described recessed
Male structure solves this problem well.Do not need outside cylinder to carry out water-spraying control again, decrease the lost consumption of cooling water.
2nd, cooling half pipe defines described concaveconvex structure, and structure is simple, and cooling half pipe can make cooling water direct
By the contact internal walls of cylinder, the temperature of significantly more efficient reduction cylinder.
3rd, cooling half pipe is divided into least one set inlet pipeline and least one set water return pipeline, and water supplying unit is by point water half
Cooling water is sent into inlet pipeline by pipe, and the cooling water in inlet pipeline enters water return pipeline through changed course semicanal, in water return pipeline
Cooling water through charge for remittance semicanal enter backwater unit discharge, one be extend the time in cylinder for the cooling water such that it is able to
Cooling water is heated to higher temperature, and reduces volume and the floor space of integral device, two is point water semicanal and a remittance
Water semicanal is located at the discharge end of cylinder, consequently facilitating water supplying unit and backwater unit are arranged on the discharge end of cylinder, so just
It is connected with cylinder in feeding chute, and easy for installation.
4th, multigroup cooling half pipe is divided into multigroup inlet pipeline and multigroup water return pipeline, inlet pipeline connection point water semicanal, returns
Water lines connect charge for remittance semicanal, and inlet pipeline and water return pipeline are arranged alternately thus ensureing the temperature of cylinder uniformly, reduce deformation.
5th, outer tube and inner tube are located on the axis of cylinder discharge end, and inner tube is located at the inside of outer tube, are easy to connect rotation
Joint, thus ensure the cylinder reliability that pipeline connects in rotary course.
Brief description
Fig. 1 is the section of structure of the cooling cylinder embodiment of this reduced iron rotation drum type cooling machine.
Fig. 2 is profile at Fig. 1 A-A.
Fig. 3 is profile at Fig. 1 B-B.
Fig. 4 is profile at Fig. 1 C-C.
Wherein：1st, cylinder 2, changed course semicanal 3, cooling half pipe 4, radial direction return pipe 5, charge for remittance semicanal 6, radially
Water inlet pipe 7, point water semicanal 8, outer tube 9, inner tube 10, outer tube shrouding 11, inner tube shrouding 12, closure plate.
Specific embodiment
Referring to figs. 1 to Fig. 4, the cooling cylinder of this reduced iron rotation drum type cooling machine, including cylinder 1 be fixed on cylinder 1
The a plurality of cooling pipe of inwall, cooling pipe is connected with water supplying unit and backwater unit, and cooling pipe is formed in the inwall of cylinder 1
Promote the concaveconvex structure that material rotates with cylinder 1.Cooling pipe is fixed on cylinder 1 inwall, cylinder 1 inwall can be carried out cold
But, the temperature of cylinder 1 is low, it is little to deform, and because cooling pipe forms concaveconvex structure, effectively increases heat exchange area, more
Important, concaveconvex structure promotes material to turn to cylinder 1 and sheds still further below after certain altitude, it is to avoid during barrel body rotation
Material slides in cylinder body bottom, enhances the blending of material and heat transfer so that material is more scattered is distributed in cylinder 1, carries
High heat transfer effect.
Specifically, in the present embodiment, cooling pipe is integrally fixed at a plurality of cooling half pipe 3 of cylinder 1 inwall, cooling half pipe 3 with
Cylinder 1 inwall consolidation forms a plurality of water channel.Define described between cooling half pipe 3 and between cooling half pipe 3 and cylinder 1 inwall
Concaveconvex structure, promote material to rotate with cylinder 1 while cooling half pipe 3 cooling material, structure is simple, and cooling half pipe 3
Can make cooling water directly by the contact internal walls of cylinder 1, the temperature of significantly more efficient reduction cylinder 1.
With reference to Fig. 1,2, the internal diameter of the present embodiment middle cylinder body 1 is 3000mm.It is uniformly arranged 48 coolings in the inwall of cylinder 1
Semicanal 3, the cross section of cooling half pipe 3 is semicircle, and its external diameter is 108mm.The axis of cooling half pipe 3 is flat with the axis of cylinder 1
OK, and cooling half pipe 3 forms a plurality of water channel with cylinder 1 inwall consolidation.
Further, cooling pipe also includes a point water semicanal 7, changed course semicanal 2 and charge for remittance semicanal 5, and point water semicanal 7 is located at cylinder
On the inwall of body 1 discharge end and with cylinder 1 inwall consolidate formed water channel, charge for remittance semicanal 5 be located at cylinder 1 discharge end inwall on and
Consolidate with cylinder 1 inwall and form water channel, the two ends closure plate 12 of point water semicanal 7 and charge for remittance semicanal 5 is blocked.Changed course semicanal 2 is located at
Consolidate on the inwall of cylinder 1 feed end and with cylinder 1 inwall and form water annulus, one end of cooling half pipe 3 all with the semicanal 2 that alters course
Connection, the other end connection point water semicanal 7 of part cooling half pipe 3, the other end connection charge for remittance semicanal 5 of remaining cooling half pipe 3, supply
Water unit is connected with a point water semicanal 7, and backwater unit is connected with charge for remittance semicanal 5.Cooling half pipe 3 is divided into least one set inlet pipeline
With least one set water return pipeline, cooling water sent into inlet pipeline by a point water semicanal by water supplying unit, the cooling in inlet pipeline
Water enters water return pipeline through changed course semicanal 2, and the cooling water in water return pipeline enters backwater unit through charge for remittance semicanal 5 and discharges,
One is to extend the time in cylinder 1 for the cooling water such that it is able to cooling water is heated to higher temperature, and reduces whole
The volume of body equipment and floor space, two is the discharge end that point water semicanal 7 and charge for remittance semicanal 5 are located at cylinder 1, consequently facilitating will supply
Water unit and backwater unit are arranged on the discharge end of cylinder 1, are so easy to feeding chute and are connected with cylinder 1, and easy for installation.
Preferably, with reference to Fig. 3 and Fig. 4, point water semicanal 7 and charge for remittance semicanal 5 all have multiple, and point water semicanal 7 and charge for remittance half
Pipe 5 is arranged alternately successively, cooling half pipe 3 is corresponding be divided into multigroup.Multigroup cooling half pipe 3 is divided into multigroup inlet pipeline and multigroup time
Water lines, inlet pipeline connection point water semicanal 7, water return pipeline connects charge for remittance semicanal 5, and inlet pipeline and water return pipeline are arranged alternately
Thus ensureing the temperature of cylinder uniformly, reduce deformation.Water semicanal 7 and charge for remittance semicanal 5 can certainly will be divided to be separately positioned on cylinder
The both sides of body 1 inwall.
Specifically, six cross sections are had to be semicircular for 7, cross section of semicircular point of water semicanal in the present embodiment
Changed course semicanal 2 and six cross sections are semicircular charge for remittance semicanal 5, and six points of water semicanals 7 are uniformly located at the interior of cylinder 1 discharge end
On wall, and consolidate six water channels of formation with cylinder 1 inwall.Six charge for remittance semicanals 5 are uniformly located on the inwall of cylinder 1 discharge end,
And consolidate six water channels of formation with cylinder inboard wall.Water semicanal 7 and the two ends closure plate 12 of charge for remittance semicanal 5 is divided to block.Changed course semicanal 2
And consolidate with cylinder inboard wall on the inwall of cylinder 1 feed end and form water annulus.48 cooling half pipes 3 are divided into ten
Two groups, 6 adjacent cooling half pipes 3 are one group, and one end of one group of cooling half pipe 3 consolidates and communicates with a point of water semicanal 7, should
This one end of two groups of cooling half pipes 3 of group both sides consolidates and communicates with two charge for remittance semicanals 5 respectively, all cooling half pipes 3 another
One end all consolidates and communicates with changed course semicanal 2.
Water supplying unit includes outer tube 8 and radial direction water inlet pipe 6, and backwater unit includes inner tube 9 and radial direction return pipe 4, outer tube 8 He
Inner tube 9 is located on the axis of cylinder 1 discharge end, and inner tube 9 is located at the inside of outer tube 8, outer tube 8 pass through radial direction water inlet pipe 6 with every
One point of water semicanal 7 communicates, and inner tube 9 is communicated with each charge for remittance semicanal 5 by radial direction return pipe 4.Outer tube 8 and inner tube 9 are located at
On the axis of cylinder 1 discharge end, and inner tube 9 is located at the inside of outer tube 8, is easy to connect swivel joint（In figure is not drawn into）, thus
Ensure cylinder 1 reliability that pipeline connects in rotary course.Six radial direction water inlet pipes 6 and six are had in specific the present embodiment
Radial direction return pipe 4, six points of water semicanals 7 are communicated with outer tube 8 by six radial direction water inlet pipes 6 respectively, and six charge for remittance semicanals 5 are respectively
Communicated with inner tube 9 by six radial direction return pipes 4.With reference to Fig. 1, the left end of outer tube 8 and inner tube 9 uses outer tube shrouding 10 and interior respectively
Pipe shrouding 11 is blocked, and right-hand member is all connected with rotating water head.
Work process：During installation equipment, the axis of cylinder 1 and horizontal line have certain inclination angle, from feed end to discharge end
Downward-sloping.Cylinder 1 being rotated by its driving means, high-temperature material enters cylinder 1, and moves to discharging by feed end
End.Material carries out heat exchange cooling with the water of cooling half pipe 3 in motor process.Circular passage between outer tube 8 and inner tube 9 for the water
Inside sequentially pass through radial direction water inlet pipe 6, point water semicanal 7 enters cooling half pipe 3, the heat absorbing material in cooling half pipe 3 heats up,
Then enter another cooling half pipe 3 through changed course semicanal 2, the heat of re-absorption material continues to heat up, in this cooling half pipe 3
After sequentially pass through charge for remittance semicanal 5, radial direction return pipe 4 returns to inner tube 9, discharge from inner tube 9.
It is more than highly preferred embodiment of the present invention, the cooling pipe in the present invention can also be and is fixed on cylinder 1 inwall
Pipe, cooling pipe can be with the diameter parallel of cylinder 1 it is also possible to curl be distributed on the inwall of cylinder 1.In addition this
Cooling half pipe 3 in bright, the cross section of point water semicanal 7, charge for remittance semicanal 5 and changed course semicanal 2 can be all semicircle or U-shaped.Two
Tube wall clear spacing between individual adjacent described cooling half pipe 3 is 20 ~ 60mm.
The above, be only presently preferred embodiments of the present invention, is not the restriction that the present invention is made with other forms, appoints
What those skilled in the art possibly also with the disclosure above technology contents changed or be modified as equivalent variations etc.
Effect embodiment.But every without departing from technical solution of the present invention content, according to the present invention technical spirit to above example institute
Any simple modification, equivalent variations and the remodeling made, still falls within the protection domain of technical solution of the present invention.
Claims (6)
1. a kind of cooling cylinder of reduced iron rotation drum type cooling machine it is characterised in that：Including cylinder（1）Be fixed on cylinder
（1）The a plurality of cooling pipe of inwall, cooling pipe is connected with water supplying unit and backwater unit, and cooling pipe is in cylinder（1）Interior
Wall forms and promotes material with cylinder（1）The concaveconvex structure rotating；Described cooling pipe includes cooling half pipe（3）, cooling half pipe（3）
With cylinder（1）Inwall consolidation forms a plurality of water channel；Described cooling pipe also includes a point water semicanal（7）, changed course semicanal（2）And charge for remittance
Semicanal（5）, point water semicanal（7）Positioned at cylinder（1）On the inwall of discharge end and and cylinder（1）Inwall consolidation forms water channel, charge for remittance
Semicanal（5）Positioned at cylinder（1）On the inwall of discharge end and and cylinder（1）Inwall consolidation forms water channel, and alter course semicanal（2）Positioned at cylinder
Body（1）On the inwall of feed end and and cylinder（1）Inwall consolidation forms water annulus, cooling half pipe（3）One end all with changed course
Semicanal（2）Connection, part cooling half pipe（3）An other end connection point water semicanal（7）, remaining cooling half pipe（3）The other end even
Direct bank remittance service water semicanal（5）, water supplying unit and a point water semicanal（7）Connection, backwater unit and charge for remittance semicanal（5）Connection.
2. according to claim 1 reduced iron rotation drum type cooling machine cooling cylinder it is characterised in that：Described point of water semicanal
（7）With charge for remittance semicanal（5）All have multiple, and point water semicanal（7）With charge for remittance semicanal（5）It is arranged alternately successively, cooling half pipe（3）Right
Being divided into of answering is multigroup.
3. according to claim 1 reduced iron rotation drum type cooling machine cooling cylinder it is characterised in that：Described cooling half
Pipe（3）, point water semicanal（7）, charge for remittance semicanal（5）With changed course semicanal（2）Cross section be semicircle or U-shaped.
4. according to claim 1 reduced iron rotation drum type cooling machine cooling cylinder it is characterised in that：Two adjacent institutes
State cooling half pipe（3）Between tube wall clear spacing be 20 ~ 60mm.
5. according to any one of claim 2～4 reduced iron rotation drum type cooling machine cooling cylinder it is characterised in that：Institute
State cooling half pipe（3）Axis and cylinder（1）Diameter parallel.
6. according to claim 1 reduced iron rotation drum type cooling machine cooling cylinder it is characterised in that：Described water supplying unit
Including outer tube（8）With radial direction water inlet pipe（6）, backwater unit includes inner tube（9）With radial direction return pipe（4）, outer tube（8）And inner tube
（9）Positioned at cylinder（1）On the axis of discharge end, and inner tube（9）Positioned at outer tube（8）Inside, outer tube（8）By radial direction water inlet pipe
（6）With each point of water semicanal（7）Communicate, inner tube（9）By radial direction return pipe（4）With each charge for remittance semicanal（5）Communicate.
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| CN201510153819.6A CN104711419B (en) | 2015-04-02 | 2015-04-02 | The cooling cylinder of reduced iron rotation drum type cooling machine |
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| CN201510153819.6A CN104711419B (en) | 2015-04-02 | 2015-04-02 | The cooling cylinder of reduced iron rotation drum type cooling machine |
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| CN104711419B true CN104711419B (en) | 2017-03-01 |
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| CN105087843A (en) * | 2015-08-24 | 2015-11-25 | 江苏省冶金设计院有限公司 | Device for cooling high-temperature direct reduced iron |
| CN112795778A (en) * | 2021-02-04 | 2021-05-14 | 宝武集团环境资源科技有限公司 | High-temperature reduction pellet cooling device for rotary hearth furnace |
| CN113654268A (en) * | 2021-09-10 | 2021-11-16 | 清远市联升空气液化有限公司 | Precooling apparatus for gas treatment |
| CN113916009A (en) * | 2021-10-15 | 2022-01-11 | 辽宁宝来生物能源有限公司 | Cold coke machine for calcined needle coke |
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| CN201293581Y (en) * | 2008-08-12 | 2009-08-19 | 韩永胜 | Tube bundle type highly effective cold slag |
| CN201344545Y (en) * | 2009-02-23 | 2009-11-11 | 四川龙麟锅炉设备有限责任公司 | Membrane type dual-cylinder multi-bin cold slag machine |
| CN201962330U (en) * | 2010-12-14 | 2011-09-07 | 河南济源钢铁(集团)有限公司 | Lump ore baking system of sinter cooler |
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