CN203451587U - Vertical cooling kiln - Google Patents
Vertical cooling kiln Download PDFInfo
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- CN203451587U CN203451587U CN201320571105.3U CN201320571105U CN203451587U CN 203451587 U CN203451587 U CN 203451587U CN 201320571105 U CN201320571105 U CN 201320571105U CN 203451587 U CN203451587 U CN 203451587U
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- kiln
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- vertical cooling
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Abstract
The utility model discloses a vertical cooling kiln which comprises a kiln body with an inner cavity, a feeding throat pipe, an annular air inlet duct and an air register, wherein a receiving hopper is arranged on the top of the kiln body; a discharge opening is formed in the bottom of the kiln body; an air outlet is formed in the upper part of the kiln body; the feeding throat extends into an inner cavity of the kiln body from the receiving hopper; the annular air inlet duct is formed in the periphery of the kiln body; an air inlet is formed in the annular air inlet duct; the air register is arranged on the lower part of the inner cavity of the kiln body and above the discharge opening; the air register is provided with an air distribution outlet, is communicated with the annular air inlet duct and distributes air into the inner cavity of the kiln body through the air distribution outlet. According to the vertical cooling kiln disclosed by the utility model, the defects that the conventional cooling equipment is high in air leakage quantity and low in heat recovery efficiency are overcome, the recovery efficiency of sensible heat of sintered ore is greatly improved, the energy consumption of a fan is reduced, the equipment is simple and compact in structure, small in occupied space, low in investment and low in maintenance workload, and the aims of energy conservation and emission reduction are achieved.
Description
Technical field
The utility model relates to a kind of refrigerating unit, relates in particular to a kind of refrigerating unit for heat sinter.
Background technology
The following three kinds of types of cooling of the cooling mostly employing of agglomerate of existing domestic steel industry: the one, flat is cooling, and the 2nd, belt is cooling, and the 3rd, annular is cooling.The common feature of these types of cooling is that heat sinter is for example placed in, in the carrier (car, groove) of motion, mode by exhausting or air blast is passed through wind (or being called airflow) in heat sinter space, realize the heat exchange of airflow and heat sinter, reach the object of cooling agglomerate.
For example, because existing heat sinter carrier (car, groove) is kept in motion, the refrigerating unit of existing heat sinter usually cannot effectively guarantee the omnidistance stopping property of heat sinter process of cooling, this just makes agglomerate process of cooling carry out in the environment of semi closed or opening, and then cause the cooling air quantity of process of cooling large, wind-warm syndrome after heat exchange is lower, cannot realize the waste heat recovery of full blast amount, cause sintering mine sensible heat recovery utilization rate not high, the energy consumption of blower fan is also larger.Also have some heat sinter refrigerating unit seal structure complex, cause manufacturing cost and cost of equipment maintenance all high.
Therefore, existing agglomerate cooling apparatus have bulky, invest the shortcoming that high, energy consumption is large, maintenance of the equipment workload is large, inleakage is large and heat recovery efficiency is low.
Utility model content
The purpose of this utility model is to provide a kind of vertical cooling kiln, this vertical cooling kiln can make heat sinter and gas in the space of a sealing, carry out heat exchange efficiently, reach best heat transfer boundary condition, thereby realize the cooling of agglomerate, and improve to greatest extent the organic efficiency of heat sinter sensible heat, reduce fan energy consumption simultaneously, thereby further reach the object of energy-saving and emission-reduction.
To achieve these goals, the utility model provides a kind of vertical cooling kiln, and it comprises:
The kiln body with internal cavity, its top is provided with hopper, and the bottom of kiln body is provided with discharge port, and the top of described kiln body has air outlet;
Charging trunnion, it is in described hopper extends to the internal cavity of kiln body;
Annular air inlet duct, it is arranged at the periphery of described kiln body, and described annular air inlet duct is provided with blast inlet;
Air distributor, it is located at the bottom of described kiln body internal cavity, the top of discharge port, described air distributor has air distribution outlet, described air distributor and annular air inlet duct conducting, and by air distribution outlet to kiln body internal cavity air distribution.
Above-mentioned vertical cooling kiln is when work, and heat sinter is by described hopper via charging trunnion, and free-falling in kiln body under action of gravity, is then deposited in kiln body.The blast inlet of cooling gas from annular air inlet duct enters annular air inlet duct, then through air distributor air distribution, finally from the air distribution outlet of air distributor, enters kiln body.The cooling gas that enters kiln body moves from bottom to top, in operational process, carry out heat exchange with heat sinter, now heat sinter release of heat is cooling, cooling gas absorbs heat and heats up, finally rise in the hot blast chamber that the charge level piled up by heat sinter and kiln body form, finally from the air outlet on kiln body top, discharge.In this course, heat sinter fully contacts with the cooling gas of rising and continues to carry out heat exchange.Heat sinter, when falling to kiln body bottom, is piled up gradually and clogs between air distributor and discharge port, thereby forms the internal cavity that agglomerate stock column has been isolated discharge port and kiln body, can effectively prevent that cooling gas from escaping.In like manner, in charging trunnion, remained that one section of stock column exists, can stop that high-temperature gas in kiln body escapes and the entering of flows outside air, thereby make whole vertical cooling kiln when work, there is good stopping property.
In the technical program, the size of kiln body and volume can be determined according to the output of heat sinter by those skilled in the art.
Further, in vertical cooling kiln described in the utility model, described kiln body comprises shell and is located at least one insulation wear-resistant liner layer in shell.Insulation wear-resistant liner layer is set and can stops that heat sinter falls friction to the wearing and tearing of inner shell cavity and thermal stresses damage, improve the work-ing life of vertical cooling kiln, it can also prevent that in kiln body, the outer of heat sinter heat falls apart simultaneously, is conducive to the recycling of heat energy.
Preferably, in vertical cooling kiln described in the utility model, described hopper is provided with hermatic door, to open or close the opening for feed of hopper.The arranging of hermatic door can further stop that high-temperature gas in kiln body escapes and the entering of extraneous air.
Certainly, technical scheme described in the utility model also can not arrange hermatic door, when hermatic door not being set, the one section of stock column remaining in charging trunnion can stop that high-temperature gas in kiln body escapes and the entering of extraneous air, and can prevent that high-temperature gas in kiln body from escaping and the entering of extraneous air by controlling the charge level of heat sinter and the pressure in the hot blast chamber between kiln body in addition.
Further, in vertical cooling kiln described in the utility model, described annular air inlet duct is connected with air-blast system by blast inlet.The cooling gas flow that air-blast system provides should be as much as possible little in the situation that guaranteeing certain speed of cooling, high as much as possible to guarantee the air themperature after heat exchange.
Further, in vertical cooling kiln described in the utility model, described discharge port direction is also provided with dumper.Dumper is discharged from discharge port through overcooled agglomerate for controlling, and enters in next step operation.
Alternatively, in vertical cooling kiln described in the utility model, described air distributor comprises a middle part air distributor, itself and described annular air inlet duct conducting.Middle part air distributor can be sent cooling gas from middle part, kiln body bottom, contribute to being uniformly distributed of cooling gas.
Further, in above-mentioned vertical cooling kiln, the air distribution outlet of described middle part air distributor top is provided with the blast cap that prevents that air distribution outlet from stopping up.Blast cap is set and prevents that heat sinter from stopping up air distribution outlet.Blast cap can be the cap structure with certain taper, between top cover and air distribution outlet, there is gap, cooling gas is sent from the gap between air distribution outlet and top top cover thereof, and the heat sinter simultaneously dropping on blast cap can be along the conical surface free landing under action of gravity of top cover.Certainly, in the technical program, blast cap also can have other structures, for example, can be the flat top cover that is positioned at air distribution outlet top.
Further, in vertical cooling kiln described in the utility model, between described middle part air distributor and kiln body, be provided with the beam of extension, in beam, there is ventilation duct, the ventilation duct conducting of described middle part air distributor and beam, the ventilation duct of described beam and annular air inlet duct conducting.In this embodiment, middle part air distributor and annular air inlet duct are by the beam conducting of hollow, and this beam can also be arranged on the support component in kiln body as middle part air distributor in addition.
Preferably, in vertical cooling kiln described in the utility model, described air distributor also comprises the annular air distributor of a circumferential setting along kiln body, described annular air distributor has annular inner wall and annular outer wall, between annular inner wall and annular outer wall, there is ，Gai gap, gap and annular air inlet duct conducting as air distribution outlet.
Above-mentioned annular air distributor can independently arrange, and also can jointly arrange and realize common air distribution with above-mentioned middle part air distributor.Be provided with at the same time in the situation of annular air distributor and middle part air distributor, annular air distributor is connected with annular air inlet duct conducting respectively with middle part air distributor.
Further, in vertical cooling kiln described in the utility model, described air outlet is connected with induced draught system.Induced draught system can add the design with the pressure functional of controlling circular hot air chamber, thereby the pressure in circular hot air chamber is effectively controlled.
Vertical cooling kiln described in the utility model, owing to having adopted technique scheme, it is compared with existing cooling apparatus, improved the stopping property of cooling apparatus, improved the heat exchange efficiency of heat sinter and cooling gas simultaneously, thereby significantly improved the organic efficiency of sintering mine sensible heat, and reduced fan energy consumption, reached the object of energy-saving and emission-reduction.
In addition, vertical cooling kiln described in the utility model is compared with existing cooling apparatus, and simple and compact equipment structure is taken up an area less, invests lowly, and maintenance of the equipment workload is few.
Accompanying drawing explanation
Fig. 1 is the structural representation of vertical cooling kiln described in the utility model under a kind of embodiment.
Fig. 2 is the structural representation of the middle part air distributor of vertical cooling kiln described in the utility model under a kind of embodiment.
Fig. 3 is the structural representation of the annular air distributor of vertical cooling kiln described in the utility model under a kind of embodiment.
Embodiment
Below will to vertical cooling kiln described in the utility model, be described in further details according to specific embodiment and Figure of description, but this explanation does not form improper restriction of the present utility model.
Fig. 1 has shown the structure of vertical cooling kiln described in the utility model under a kind of embodiment.As shown in Figure 1, this vertical cooling kiln comprises: the kiln body with internal cavity; This kiln body comprises steel shell 1 and is located at the insulation wear-resistant liner layer 2 in shell 1, as can be seen from the figure, this kiln body is right cylinder substantially, be that cross section is circular, kiln body bottom is reverse taper, certainly in other embodiments of this case, kiln body can be also square main body, or other structures that can expect of those skilled in that art; This kiln body top is provided with hopper 3, and hopper 3 is provided with hermatic door 9, to open or close the opening for feed 7 of hopper 3; Charging trunnion 4, it is in hopper 3 extends to the internal cavity of kiln body; The bottom of this kiln body is also provided with discharge port 8; The top of this kiln body has air outlet 12.In addition, in the present embodiment, the kiln body periphery of this vertical cooling kiln is also provided with the first annular air inlet duct 51 and the second annular air inlet duct 52, and wherein the first annular air inlet duct 51 is provided with the first blast inlet 101, the second annular air inlet ducts 52 and is provided with the second blast inlet 102.The first annular air inlet duct 51 is connected with annular air distributor 61 conductings, and the second annular air inlet duct 52 is connected with 62 conductings of middle part air distributor.
Fig. 2 and Fig. 3 have further shown respectively in the present embodiment, the structure of middle part air distributor and annular air distributor.
As shown in Figure 1, Figure 2 and Figure 3, in the present embodiment, the air distributor of vertical cooling kiln is located at the bottom of kiln body internal cavity, the top of discharge port 8, and air distributor 6 has air distribution outlet, so that the cooling gas of sending through air distribution outlet flows according to the direction shown in Fig. 1.Air distributor 6 comprises middle part air distributor 62 and annular air distributor 61, the air distribution outlet top of middle part air distributor 62 is provided with the blast cap 621 that prevents that air distribution outlet from stopping up, between middle part air distributor 62 and kiln body, be provided with the beam 63 of extension, in beam 63, there is ventilation duct, the ventilation duct conducting of middle part air distributor 62 and beam 63, the ventilation duct of beam 63 and the second annular air inlet duct 52 conductings, thereby the conducting of realization middle part air distributor 62 and the second annular air inlet duct 52.Annular air distributor 61 and the first annular air inlet duct 51 conductings, and by air distribution outlet to kiln body internal cavity air distribution, annular air distributor 61 has annular inner wall 611 and annular outer wall 612, between annular inner wall 611 and annular outer wall 612, there are ，Gai gap, gap and the first annular air inlet duct 51 conductings as air distribution outlet.
In addition, the vertical cooling kiln of the present embodiment is when application, and annular air inlet duct 5 is connected with air-blast system by blast inlet 10; Air outlet 12 is connected with induced draught system.
Please continue to refer to Fig. 1-Fig. 3, in figure, the direction of arrow represents the flow direction of cooling gas.The vertical cooling kiln of the present embodiment is when work, be arranged at hot broken agglomerate downstream, heat sinter passes through hopper 3 via charging trunnion 4 from opening for feed 7, under action of gravity, in kiln body, free-falling is piled up, cooling air enters air distributor 6 air distributions from blast inlet 10 by annular air inlet duct 5, then from each air distribution outlet of air distributor 6 out, enter kiln body bottom, then in kiln body, drive in the wrong direction from bottom to top, heat sinter and retrograde cooling air carry out heat exchange, heat sinter obtains cooling, cooling air expanded by heating rises simultaneously, finally rise in the hot blast chamber 11 that charge level A and kiln body by the heat sinter of piling up form, finally from air outlet 12, discharge.In this course, heat sinter contacts with the cooling air of rising and continues to carry out heat exchange.Heat sinter, when falling to kiln body bottom, is piled up gradually and clogs between air distributor 6 and discharge port 8, thereby forms the internal cavity that agglomerate stock column has been isolated discharge port 8 and kiln body, can prevent that cooling air from escaping.Equally, the one section of stock column combination seal door 9 remaining in charging trunnion 4 can stop that high-temperature gas in kiln body escapes and the entering of flows outside air.Meanwhile, the pressure that can also control above-mentioned hot blast chamber 11 by induced draught system further prevents escaping of high-temperature gas and entering of flows outside air in kiln body.
In addition, in the present embodiment, air distributor 6 comprises middle part air distributor 62 and annular air distributor 61, and this makes the air distribution of kiln body bottom be tending towards evenly, being conducive to the cooling of heat sinter.
In addition, in the present embodiment, blast cap 621 is the multilayer cap structures with conical surface, and the heat sinter of whereabouts cannot enter air distribution outlet, has effectively prevented the obstruction of air distribution outlet.
It should be noted that above cited embodiment is only specific embodiment of the utility model.Obviously the utility model is not limited to above embodiment, and the similar variation of thereupon making or distortion are that those skilled in the art can directly draw or be easy to from the disclosed content of the utility model and just associate, and all should belong to protection domain of the present utility model.
Claims (10)
1. a vertical cooling kiln, is characterized in that, comprising:
The kiln body with internal cavity, its top is provided with hopper, and the bottom of kiln body is provided with discharge port, and the top of described kiln body has air outlet;
Charging trunnion, it is in described hopper extends to the internal cavity of kiln body;
Annular air inlet duct, it is arranged at the periphery of described kiln body, and described annular air inlet duct is provided with blast inlet;
Air distributor, it is located at the bottom of described kiln body internal cavity, the top of discharge port, described air distributor has air distribution outlet, described air distributor and annular air inlet duct conducting, and by air distribution outlet to kiln body internal cavity air distribution.
2. vertical cooling kiln as claimed in claim 1, is characterized in that, described kiln body comprises shell and is located at least one insulation wear-resistant liner layer in shell.
3. vertical cooling kiln as claimed in claim 1, is characterized in that, described hopper is provided with hermatic door, to open or close the opening for feed of hopper.
4. vertical cooling kiln as claimed in claim 1, is characterized in that, described annular air inlet duct is connected with air-blast system by blast inlet.
5. vertical cooling kiln as claimed in claim 1, is characterized in that, described discharge port direction is also provided with dumper.
6. vertical cooling kiln as claimed in claim 1, is characterized in that, described air distributor comprises a middle part air distributor, itself and described annular air inlet duct conducting.
7. vertical cooling kiln as claimed in claim 6, is characterized in that, the air distribution outlet top of described middle part air distributor is provided with the blast cap that prevents that air distribution outlet from stopping up.
8. vertical cooling kiln as claimed in claim 6, is characterized in that, is provided with the beam of extension between described middle part air distributor and kiln body, has ventilation duct in beam, the ventilation duct conducting of described middle part air distributor and beam, the ventilation duct of described beam and annular air inlet duct conducting.
9. the vertical cooling kiln as described in any one in claim 1,6,7 or 8, it is characterized in that, described air distributor comprises the annular air distributor of a circumferential setting along kiln body, described annular air distributor has annular inner wall and annular outer wall, between annular inner wall and annular outer wall, there is ，Gai gap, gap and annular air inlet duct conducting as air distribution outlet.
10. vertical cooling kiln as claimed in claim 1, is characterized in that, described air outlet is connected with induced draught system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571105.3U CN203451587U (en) | 2013-09-13 | 2013-09-13 | Vertical cooling kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571105.3U CN203451587U (en) | 2013-09-13 | 2013-09-13 | Vertical cooling kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203451587U true CN203451587U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320571105.3U Expired - Lifetime CN203451587U (en) | 2013-09-13 | 2013-09-13 | Vertical cooling kiln |
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| CN (1) | CN203451587U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121786A (en) * | 2014-08-08 | 2014-10-29 | 白银川 | Waste heat recycling furnace |
| CN104451140A (en) * | 2013-09-13 | 2015-03-25 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Vertical cooling kiln |
| CN106370018A (en) * | 2016-11-09 | 2017-02-01 | 大峘集团有限公司 | Cooling device and cooling method for material |
-
2013
- 2013-09-13 CN CN201320571105.3U patent/CN203451587U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451140A (en) * | 2013-09-13 | 2015-03-25 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Vertical cooling kiln |
| CN104121786A (en) * | 2014-08-08 | 2014-10-29 | 白银川 | Waste heat recycling furnace |
| CN106370018A (en) * | 2016-11-09 | 2017-02-01 | 大峘集团有限公司 | Cooling device and cooling method for material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180409 Address after: 066004 No. 71, Longhai Road, Qinhuangdao economic and Technological Development Zone, Hebei Patentee after: SHEN KAN QINHUANGDAO GENERAL ENGINEERING DESIGN & Research Institute CORPORATION MCC Address before: Hebei Street West Harbor area, 066004 Hebei city of Qinhuangdao province No. 47 Patentee before: BERIS ENGINEERING AND RESEARCH (QINHUANGDAO) Corp. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |