CN106435165B - A kind of pellet sintering equipment - Google Patents
A kind of pellet sintering equipment Download PDFInfo
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- CN106435165B CN106435165B CN201610791471.8A CN201610791471A CN106435165B CN 106435165 B CN106435165 B CN 106435165B CN 201610791471 A CN201610791471 A CN 201610791471A CN 106435165 B CN106435165 B CN 106435165B
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- cooling
- storehouse
- pelletizing
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- sintering equipment
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/22—Sintering; Agglomerating in other sintering apparatus
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/26—Cooling of roasted, sintered, or agglomerated ores
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
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Abstract
A kind of pellet sintering equipment, including drying device, sintering equipment, cooling device, sintering equipment one end connect cooling device, and the other end connects drying device；Drying device includes dryness storehouse, and sintering equipment includes agglomerating chamber and introduction passage, and cooling device includes cooling storehouse and venting channels；The cooling gas that venting channels introduce becomes burning gases after the heat that cooling storehouse absorbs pelletizing, flow into introduction passage, and then flow into agglomerating chamber and fuel and gas is made to be easier to oxidizing fire, the high-temperature gas of agglomerating chamber's outflow passes through dryness storehouse and plays the role of pelletizing before assisting desiccant dryness to be sintered.The present invention effectively realizes dry pelletizing, sintering and cooling integration production, and it is simply and easily transported using transporter, it is easy to change using the temperature of gas, play the role of cooling, dry and combustion-supporting, realization full combustion is come into full contact with by the flowing of gas, high temperature and fuel, not only full combustion of fuel and reach full combustion of gas, to reduce environmental pollution.
Description
Technical field
The present invention relates to a kind of agglomerating plant, in particular to a kind of pellet sintering equipment, and in particular to one kind is used for pelletizing
Dry, sintering and cooling integration equipment.
Background technique
Pelletizing is a kind of method of artificial block stock, and this method is by after powdered material pelletizing, using continuous
Sintering is to be condensed into pelletizing.During pelletizing, material is not only due to rolling balling phase grain and change in physical occurs, such as close
Degree, shape, mechanical strength etc. variation, it is often more important that chemical property has occurred, as chemical composition, reproducibility, dilatancy,
The variation such as the high temperature reduction property of softening, the low-temperature reduction property of softening, meltbility, improves the metallurgical performance of material.
Concentrate is the final products in dressing plant, and moisture in concentrate is one of the important indicator for evaluating dressing product, and moisture is excessively high
The handling and transport that will affect concentrate product cause phenomena such as its transport is easily revealed, winter easily freezes vehicle.Therefore, essence mine dehydration and
The technologies such as dewatered transport, dry and sintering and equipment are of crucial importance.
Existing essence mine dehydration mixes various additives in pellet sintering equipment and the technology of adhesive formation pelletizing is mature,
But pelletizing be dehydrated to be formed it is spherical after transport and the cooling device to combine together of drying and sintering have always to be updated, firing
Burn the gas that the oxynitrides that is formed in device is hostile environment, burner is abundant to the full combustion of gas and fuel
Burning also has technical breakthrough to be achieved.
Therefore, new be used for dry pelletizing, sintering and cooling integration equipment is developed to be of great significance.
Summary of the invention
The purpose of the present invention is overcome dry above-mentioned pelletizing in the prior art, sintering and cooling integration device technique to fall
Afterwards, the problem of in terms of fuel and gas do not have full combustion to cause in fuel-device, proposes that a kind of pelletizing is burnt
Equipment is tied, which effectively realizes dry pelletizing, sintering and cooling integration production, and makes the combustion in burner
Material and gas are fully burned, and significantly reduce environmental pollution.
To achieve the goals above, the invention provides the following technical scheme:
A kind of pellet sintering equipment, including drying device, sintering equipment, cooling device, sintering equipment one end connection
Cooling device, the other end connect drying device；The drying device includes doing to what the pelletizing to be sintered that conveying comes was dried
Dry storehouse, the sintering equipment include agglomerating chamber and introduction passage, and the introduction passage introduces burning gases, institute to the agglomerating chamber
State agglomerating chamber be used to from the dryness storehouse conveying come drying after pelletizing be sintered, the cooling device include cooling storehouse and
Venting channels, the venting channels introduce cooling gas into the cooling storehouse, are transported to the cooling to from the agglomerating chamber
Pelletizing is cooled down after the sintering in storehouse.
In pellet sintering equipment as described above, it is preferable that further include being located at the sintering equipment, drying device and cooling
Transporter inside device, the transporter is for conveying pelletizing and passing sequentially through the drying device, burning in the same horizontal line
Tie device and cooling device；The drying device, sintering equipment and cooling device are the structures of autonomous closure, and transporter is close
It is enclosed in drying device, sintering equipment and cooling device internal operation.
In pellet sintering equipment as described above, it is preferable that the top of the sintering equipment is arranged in the introduction passage,
And the introduction passage is connect with the agglomerating chamber；The agglomerating chamber is used for the sintering of pelletizing, and the introduction passage is used for sintering
Room supplies burning gases；The introduction passage is a hollow pipe structure, and inside builds refractory material protective layer, close to dry
Dry device it is closed at one end, the opening of the other end is connected with cooling device.
In pellet sintering equipment as described above, it is preferable that the agglomerating chamber includes burner and fuel inlet；It is described
For burner for the pelletizing that burns, the fuel inlet is used to continuously supply fuel, the fuel inlet setting to burner
On the outside of agglomerating chamber, which connect with introduction passage；The burner is arranged inside agglomerating chamber, the burner
The fuel for inputting fuel inlet burns, while connecting with the introduction passage.
In pellet sintering equipment as described above, it is preferable that the outside of cooling storehouse is arranged in the entrance of the venting channels
Side, the venting channels pass through the inside of cooling storehouse；Cooling gas enters the heat that pelletizing is absorbed in venting channels and in cooling storehouse
Amount exchanges heat, and the cooling pelletizing of the coolant in supplement heat rejecter storehouse, cooling gas becomes burning gases after absorbing heat, with high temperature
State flows into introduction passage, and then flows into agglomerating chamber and fuel is made to be more easier oxidizing fire；The high temperature of agglomerating chamber's outflow
Gas enters in drying device the effect for assisting desiccant dryness to be sintered preceding pelletizing.
In pellet sintering equipment as described above, it is preferable that the inlet of the venting channels is provided with air blower；It is cooling
Gas is entered in venting channels by the air blower, and venting channels enter at cooling Hatch Opening setting there are two regulating valve with
Just the intake inputted to different venting channels can be controlled respectively.
In pellet sintering equipment as described above, it is preferable that the lower part of the sintering equipment is provided with exhaust fan, is used for
It extracts after the gas in venting channels enters introduction passage and enters back into agglomerating chamber, and enter back into drying device.
In pellet sintering equipment as described above, it is preferable that further include sequentially connected electric precipitator, exhaust fan and exhaust
Chimney；The gas being discharged out of drying device and cooling storehouse passes through exhaust cigarette after exhaust fan extracts again after electric precipitator dedusting
Chimney discharge.
In pellet sintering equipment as described above, it is preferable that the gas for entering the introduction passage is divided into two parts, and one
Divide gas to enter burner through pipeline directly to participate in burning, a referred to as combustion air；Another part gas enters burning through pipeline
Chamber interior is tied, concurrent heating and secondary combustion-supporting, referred to as secondary combustion-supporting wind are played the role of.
In pellet sintering equipment as described above, it is preferable that be placed with desiccant in the dryness storehouse, be used for drying and sintering
Preceding pelletizing；It is placed with coolant in the cooling storehouse, for cooling down sintered pelletizing.
A kind of air circulation in pellet sintering equipment, including cooling gas are entered in venting channels by air blower, are led to
Gas channel passes through the inside of cooling storehouse, and the cooling gas into venting channels becomes in cooling storehouse with after high temperature pelletizing heat exchange
Heating, the heating in the venting channels in the cooling storehouse of sintering equipment side enter in the introduction passage in sintering equipment, separately
The heating in venting channels in the cooling storehouse of side is expelled directly out；Into the heating in introduction passage, a part is directly entered burning
Knot is indoor, and another part supplies burner burning；Then it is right in dryness storehouse that the high temperature heating flowed out out of agglomerating chamber enters back into
Pelletizing on transporter is dried；Finally from warm in the venting channels in the gas and other side cooling storehouse that dryness storehouse flows out
Gas extracts discharge through exhaust fan again after passing through electric precipitator dedusting.
Compared with the immediate prior art, technical solution provided by the invention has following excellent effect:
1, a kind of pellet sintering equipment provided by the invention effectively realizes dry pelletizing, sintering and cooling integration
Production, and simply and easily transported using transporter, it is easy to change using the temperature of gas, plays cooling, dry and combustion-supporting work
With coming into full contact with realization full combustion by the flowing of gas, high temperature and fuel, not only full combustion of fuel and reach gas
Full combustion, to reduce environmental pollution.
2, venting channels, introduction passage, agglomerating chamber interconnect in technical solution provided by the invention, on the one hand each logical
The connection of road design is simple, easily controllable, on the other hand can effectively realize the cooling gas of venting channels introducing by way of cooling storehouse
After the heat for absorbing pelletizing, introduction passage is flowed into high temperature gas state, and then flow into agglomerating chamber and make fuel and gas more
Burning easy to oxidize, reduces environmental pollution.
3, pellet sintering equipment provided by the invention, structure is simple, convenient for operation, is able to achieve industrialized production, practical
Property it is strong, save production cost, can wide popularization and application.
4, cooling storehouse air blower is optimized for 1 in pellet sintering equipment provided by the invention, and exhaust fan is optimized for 2, combustion
Expect that the combustion fan of entrance is all cancelled, blower utilization rate is higher, more energy efficient, largely reduce construction investment.
5, sintering equipment, cooling device partition wall simplify in equipment provided by the invention, and air piping optimization largely reduces construction
Investment.The simplification of air piping and optimization design, which help to reduce, leaks out a little with the heat exchange of warm wind during transportation, improves wind
The utilization rate of machine saves fuel consumption.
6, combustion air of the invention all uses warm wind (600-1000 DEG C), avoids existing design and is all made of cold wind, rises
Warm process needs energy, and present invention significantly reduces energy consumptions.
Detailed description of the invention
Fig. 1 is the pelletizing equipment structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the sectional view in Fig. 1 at A-A；
Fig. 3 is the air circulation figure in the pelletizing equipment of the embodiment of the present invention；
Fig. 4 is second of air circulation figure in the pelletizing equipment of the embodiment of the present invention；
Fig. 5 is the third air circulation figure in the pelletizing equipment of the embodiment of the present invention；
In figure: 1, pelletizing；2, agglomerating chamber；21, pipeline；22, lower agglomerating chamber's cover；23, lower agglomerating chamber's cover；24, upper agglomerating chamber
Cover；25, pipeline；3, introduction passage；4, burner；5, venting channels；6, fuel inlet；61, fuel；62, flame；7, cooling
Device；8, cooling storehouse；81, the first cooling storehouse cover；82, the second cooling storehouse cover；83, third cooling storehouse cover；84, the 4th cooling storehouse
Cover；9, transporter；10, sintering equipment；11, drying device；12, dryness storehouse；121, upper dryness storehouse cover；122, lower dryness storehouse cover；
123, lower dryness storehouse cover；124, upper dryness storehouse cover；701, regulating butterfly valve；702, regulating butterfly valve；703, regulating butterfly valve；80, warm wind；
801, a combustion air；802, secondary combustion-supporting wind；803, the warm wind being heated by the flame；804, warm with pelletizing heat exchange
Wind；13, exhaust fan；14, exhaust fan；15, air blower；16, electric precipitator；17, chimney；19, hot precipitator；181, partition wall；
182, partition wall；A, cooling gas inlet.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff's every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that the noun of locality " upper and lower, left and right, inside and outside, vertical, water involved by the description embodiment of the present invention
It is flat " etc. be opposite Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 for, it should be understood that viewing angle is different, and the noun of locality is different, this
It is not construed as limiting the scope of the invention.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, agglomerates of sintered pellets equipment successively includes drying device from left to right in the embodiment of the present invention
11, sintering equipment 10, cooling device 7.10 one end of sintering equipment connects cooling device 7, and the other end connects drying device 11；It is dry
Device 11 includes dryness storehouse 12；Sintering equipment 10 includes introduction passage 3 and agglomerating chamber 2, and cooling device 7 includes 5 He of venting channels
Cooling storehouse 8.1 agglomerating plant of pelletizing further includes the transporter 9 inside sintering equipment 10, drying device 11 and cooling device 7,
The transporter 9 is for conveying pelletizing 1 and passing sequentially through drying device 11, sintering equipment 10 and cooling device in the same horizontal line
7 inside, the drying device 11, sintering equipment 10 and cooling device 7 are independent enclosed construction, and three device adjacents are equal
It is provided with partition wall, the space that transporter 9 passes through only is reserved on partition wall, that is to say, that transporter 9 is sealed in drying
7 internal operation of device 11, sintering equipment 10 and cooling device, which, which can reduce equipment, leaks out and causes the loss of heat.
Drying device 11 is made of the dryness storehouse 12 of 2 autonomous closures, and dryness storehouse 12 includes upper 121/124 He of dryness storehouse cover
Lower dryness storehouse cover 122/123, transporter 9 transport pelletizing 1 and pass through from the centre of symmetrically arranged upper and lower dryness storehouse cover.Upper drying
Storehouse cover 121 is symmetrical arranged composition dryness storehouse (dryness storehouse close to feed end, that is, left end), upper dryness storehouse cover with lower dryness storehouse cover 122
124 are symmetrical arranged composition dryness storehouse (close to the dryness storehouse of agglomerating chamber end, that is, right end) with lower dryness storehouse cover 123, and 2 dryness storehouses
There is partition wall between 12, the space that transporter passes through only only is reserved on partition wall.2 dryness storehouses 12 that the present invention designs have every
Wall separates, and transporter 9 passes through from the centre of upper and lower dryness storehouse cover.The temperature range of two dryness storehouses 12 is different: close into
The dryness storehouse of material end (left end) is connected by pipeline with the lower agglomerating chamber cover 22 in sintering equipment 10, the lower (200-250 of temperature
℃)；Dryness storehouse close to agglomerating chamber (right end) 23 is connected by pipeline with the lower agglomerating chamber cover in sintering equipment 10, temperature compared with
High (360-450 DEG C)；By the design being gradually warmed up in different dryness storehouses, transporter 9 can be made to transport pelletizing 1 and pass sequentially through two
The dryness storehouse of different temperatures realizes gradually drying for pelletizing 1；It is placed with desiccant in dryness storehouse 12 simultaneously, is burnt for dry
Pelletizing 1 before knot.
Agglomerating chamber 2 in the present embodiment in sintering equipment 10 covers 22/23 by the lower agglomerating chamber of lower part, the upper agglomerating chamber on top
Cover 24, burner 4, fuel inlet 6 form；Transporter 9 transports the inside that pelletizing 1 passes through agglomerating chamber 2, and agglomerating chamber 2 is used for ball
The sintering of group 1, burner 4 is for the pelletizing that burns.The top of upper agglomerating chamber's cover 24, the introduction passage 3 is arranged in introduction passage 3
It is a hollow pipe structure, inside builds refractory material protective layer, and close to the closed at one end of drying device, the other end is opened
Mouth is connected with 84 upper opening of the 4th cooling storehouse cover in cooling device 7；Introduction passage 3 is used to supply burning gases to agglomerating chamber 2；
The setting of fuel inlet 6 is 9 in 2 outside of agglomerating chamber, fuel inlet 6, and fuel inlet 6 is used to give the continuously supply combustion of burner 4
Material 61；Burner 4 is arranged inside agglomerating chamber 2, which is burnt by the fuel 61 that fuel inlet 6 inputs,
Pelletizing 1 on transporter 9 is sintered；Introduction passage 3 is connect by pipeline 21 with burner 4, and introduction passage 3 passes through pipe
Road 25 is connect with agglomerating chamber 2.
First cooling storehouse cover 81 of the cooling storehouse 8 of cooling device 7 by lower part, the second cooling storehouse cover on top in the present embodiment
82, third cooling storehouse cover 83 and the 4th cooling storehouse cover 84 composition.The transporter 9 of conveying pelletizing 1 is located in cooling storehouse 8, and second is cold
But storehouse cover 82, third cooling storehouse cover 83 and the 4th cooling storehouse cover 84 are covered on the top of transporter 9, the first cooling storehouse cover 81 side by side
It is covered on the lower section of transporter 9；Coolant is placed in the cooling storehouse 8.The outer of cooling storehouse 8 is arranged in the entrance of venting channels 5
Side, the venting channels 5 pass through the inside of cooling storehouse 8, so that cooling gas enters in venting channels 5 and in 8 interior suction of cooling storehouse
The heat for receiving pelletizing 1 exchanges heat.4th cooling storehouse cover 84 is equipped with a circle at the top of the side partition wall of sintering equipment 10
Shape aperture, the opening diameter is consistent with the diameter of venting channels 5, and is connected with venting channels 5.Inside venting channels 5
Warm air entered in introduction passage 3 by the suction of exhaust fan 13 in lower sintering warehouse cover 22/23.Third is cooling
It is structure as a whole inside the cover of storehouse cover 83 and the 4th cooling storehouse cover 84 without next door, is the internal cavity knot for building refractory material
Structure；There is partition wall 182 inside the cover of third cooling storehouse cover 83 and the second cooling storehouse cover 82；One is provided with outside the first cooling storehouse cover 81
Platform cooling air blower 15, and 1 partition wall 181 being arranged in the first cooling storehouse cover 81 will be divided into two venting channels 5 inside it,
And the inlet of the first cooling storehouse cover 81 setting there are two regulating valve so as to can control respectively to each venting channels 5 input
Intake avoids the technological deficiency using multiple cooling air blowers.
The upper agglomerating chamber cover 24 of sintering equipment 10 is internally provided with partition wall in the present embodiment, which covers 24 for upper agglomerating chamber
It is divided into two parts；Partition wall position in upper agglomerating chamber cover 24 is located at lower agglomerating chamber cover 22 and 23 division wall is covering just in lower agglomerating chamber
Top, this two partition walls are only reserved with the space that transporter passes through on same center line and therebetween.Introduction passage 3 and cold
But the 4th cooling storehouse cover 84 of device 7 is the space for being connected to no separation with third cooling storehouse cover 83, i.e., introduction passage 3 passes through the 4th
The circular opening that cooling storehouse cover 84 is equipped at the top of the side partition wall of sintering equipment 10 is connected with venting channels 5；Third
Cooling storehouse cover 83 and the second cooling storehouse cover 82 are provided with partition wall between being, are only reserved with transport between two adjacent cooling storehouse covers
The space that machine 9 passes through.
It is found that in the pellet sintering equipment of the present embodiment cooling storehouse air blower be 1, exhaust fan 2, at fuel inlet
Combustion fan all cancel, blower utilization rate is higher, more energy efficient, substantially reduce construction investment.
In addition, the present embodiment also provides the air circulation in a kind of pelletizing equipment, cold wind is by air blower 15 from cooling air
At body entrance A enter venting channels 5 in, venting channels 5 the inlet of cooling storehouse 8 be divided into two venting channels 5 and respectively into
Enter in cooling storehouse 8, venting channels 5 pass through the inside of cooling storehouse 8, cold in the cooling gas supplement heat rejecter storehouse 8 in venting channels 5
But the cooling pelletizing of agent, the gap for being then passed through transporter 9 cool down sintered pelletizing 1, and the cold wind into venting channels 5 exists
In cooling storehouse 8 with obtain warm wind after 1 heat exchange of high temperature pelletizing and absorb in cooling storehouse 8 after the heat of pelletizing 1 as burning gases
(warm wind), warm wind respectively enters in the 4th cooling storehouse cover 84 and third cooling storehouse cover 83, the second cooling storehouse cover 82, by adjusting cold
But the aperture of two regulating valves on the venting channels 5 of storehouse 8 inlet two, adjustable 82 venting channels 5 in inside of cooling storehouse
Cold flow, and then control the 4th cooling storehouse cover 84 and third cooling storehouse cover 83, the second cooling storehouse cover 82 warm air temperature.
At this point, the warm wind of the condition of high temperature in venting channels 5 in the 4th cooling storehouse cover 84 and third cooling storehouse cover 83 by
The suction for the exhaust fan 13 being arranged in 22/23 is covered to lower sintering storehouse and is entered in introduction passage 3, and enters introduction passage
3 heating is divided into two parts, and a part of warm wind enters burner 4 through pipeline 21 and directly participates in burning, commonly referred to as once helps
Wind is fired, another part warm wind enters inside upper agglomerating chamber cover 24 through the pipeline 25 between introduction passage 3 and upper agglomerating chamber cover 24, rises
To the effect of concurrent heating and secondary combustion-supporting, so that fuel is more easier oxidizing fire, commonly referred to as secondary combustion-supporting wind；This implementation helps
Combustion wind all uses warm wind (600-1000 DEG C), avoids that existing design is all made of cold wind, temperature-rise period needs energy, the present invention
Significantly reduce energy consumption.Warm wind in upper agglomerating chamber cover 24 reacted with the pellet sintering on transporter 9 after by exhaust fan
Suction continue to run down into lower agglomerating chamber cover 22 and lower agglomerating chamber cover 23.Warm wind in lower agglomerating chamber's cover 23 is logical
It crosses exhaust fan 13 to enter in the lower dryness storehouse cover 123 of drying device, the pelletizing 1 being then then passed through on transporter 9 is dry to right end
Pelletizing 1 in storehouse carries out forced air drying, and the exhaust gas after heat exchange enters in upper dryness storehouse cover 124.Into in lower agglomerating chamber cover 22
Warm wind by exhaust fan 13 enter drying device lower dryness storehouse cover 122, be then then passed through 1 pair of left side of pelletizing on transporter 9
The pelletizing 1 in dryness storehouse is held to carry out forced air drying, the exhaust gas after heat exchange enters upper dryness storehouse cover 121.In order to adjust by
Lower agglomerating chamber's cover 22/23 enters the heater temperature of exhaust fan, is respectively set on entering the heating input channel before exhaust fan 13
Convert cold wind valve (totally 2).In order to adjust the heater temperature for entering drying device 11, enter dry dress at 13 rear portion of exhaust fan
It is respectively set on the heating input channel set and converts cold wind valve (totally 2), and be provided between exhaust fan 13 and sintering equipment
Hot precipitator 19, for being dusted to from the heating of 22/23 extraction of lower agglomerating chamber cover.
Exhaust gas convergence in heating and dryness storehouse in second cooling storehouse cover 82 of cooling storehouse 8 enters after a pipeline through electricity
After 16 dedusting of deduster, then passes through chimney 17 after the extraction of exhaust fan 14 and discharge.
The structure on detailed analysis agglomerating chamber top again, as shown in Fig. 2, in introduction passage 3, pipeline 21 and upper sintering cover 24
Gas in fuel inlet 6 and burner 4 is negotiable；Gas in introduction passage 3, pipeline 25 and agglomerating chamber 2 is negotiable；It is logical
That crosses the flowing of gas, high temperature and fuel comes into full contact with realization full combustion, can be reduced environmental pollution.Into introduction passage 3
Heating is divided into two parts, and a part of warm wind 80 enters burner 4 through pipeline 21 and directly participates in burning, commonly referred to as primary combustion-supporting
Wind 801, another part warm wind 80 are directly entered inside agglomerating chamber through pipeline 25, play the role of concurrent heating and secondary combustion-supporting, usually
Referred to as secondary combustion-supporting wind 802.Regulating butterfly valve 702 and regulating butterfly valve 703 is respectively set on pipeline 21 and pipeline 25, for adjusting gas
The uninterrupted of body；The regulating butterfly valve 701 being arranged in fuel inlet 6 be used for adjust fuel quantity number；Fuel 61 passes through fuel
Import 6 enters in burner 4 burnt and jetted out flames 62, and the process of warm wind 803 and transporter 9 being heated by the flame
On pelletizing 1 reacted after become and the warm wind 804 after pelletizing heat exchange.
In order to facilitate the above-mentioned technical proposal understood in the present invention, below by way of specifically used mode to upper in the present invention
Technical solution is stated further to be described in detail.
Transporter 9 transports un-sintered pelletizing 1 first by drying device 11, transports the un-sintered pelletizing 1 come and is being placed in
It is dried under the action of desiccant in dryness storehouse；
Un-sintered pelletizing 1 after drying passes through the agglomerating chamber 2 being arranged in sintering equipment 10 by the transport of transporter 9,
This carries out the sintering of pelletizing 1, and for the pelletizing 1 that burns, fuel inlet 6 is used to give the continuously supply combustion of burner 4 burner 4
Material, introduction passage 3 are used to supply burning gases to agglomerating chamber 2, and fuel and gas is made to be fully burned, and burn in agglomerating chamber 2
High-temperature gas afterwards is flowed through dryness storehouse 12 by the effect of exhaust fan 13 again and nearby plays pelletizing 1 before assistance desiccant dryness is sintered
Effect, while play the role of to before sintering pelletizing 1 carry out the pre-heat treatment；
Sintered pelletizing 1 continues to transport cooling device 7 by transporter 9, and cooling device 7 includes 5 He of venting channels
Cooling storehouse 8, cooling storehouse 8 is interior to place coolant, and cooling gas is passed through in cooling storehouse 8 by venting channels 5, and cooling gas enters cold
But the heat that agglomerates of sintered pellets 1 is absorbed behind storehouse 8, cools down the pelletizing by cooling storehouse 8, the cooling pelletizing 1 of supplement heat rejecter agent,
Cooling gas becomes burning gases after absorbing heat, flows into introduction passage 3 with the condition of high temperature, and then flow into agglomerating chamber 2 and to fire
Material be more easier, fully oxidized burning；Then the high-temperature gas that agglomerating chamber 2 flows out flows through to play near dryness storehouse 12 and assists to do
Pelletizing 1 acts on before drying prescription drying and sintering, and the high-temperature gas flowed out from agglomerating chamber 2 passes through the hole of transporter 9 and pelletizing 1 carries out heat
Exchange, is dried pelletizing.
Embodiment 2
As shown in figure 4, the warm wind in the present embodiment Zhong Xia agglomerating chamber cover 23 enters the upper dry of drying device by exhaust fan
In dry storehouse cover 124, then it is then passed through the pelletizing on transporter and exhausting drying is carried out to the pelletizing in right end dryness storehouse, after heat exchange
Exhaust gas enter lower dryness storehouse cover 123 in.Other settings are in the same manner as in Example 1, and details are not described herein.
Embodiment 3
As shown in figure 5, the warm wind in the present embodiment Zhong Xia agglomerating chamber cover 23 enters the upper dry of drying device by exhaust fan
In dry storehouse cover 124, then it is then passed through the pelletizing on transporter and exhausting drying is carried out to the pelletizing in right end dryness storehouse, after heat exchange
Exhaust gas enter lower dryness storehouse cover 123 in.The upper of drying device is entered by exhaust fan into the warm wind in lower agglomerating chamber cover 22
Then dryness storehouse cover 121 is then passed through the pelletizing on transporter and carries out exhausting drying to the pelletizing in the dryness storehouse of left end, after heat exchange
Exhaust gas enter lower dryness storehouse cover 122.Other settings are in the same manner as in Example 1, and details are not described herein.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Mind and principle within, any modification, equivalent replacement, improvement and so on, accompanying claims protection scope of the present invention it
It is interior.
Claims (6)
1. a kind of pellet sintering equipment, including drying device, sintering equipment, cooling device, which is characterized in that the sintering equipment
One end connects cooling device, and the other end connects drying device；
The drying device includes the dryness storehouse that the pelletizing to be sintered that conveying comes is dried, and the sintering equipment includes sintering
Room and introduction passage, the introduction passage introduce burning gases to the agglomerating chamber, and the agglomerating chamber is used to from the drying
Pelletizing is sintered after the drying that storehouse conveying comes, and the cooling device includes cooling storehouse and venting channels, the venting channels to
Cooling gas is introduced in the cooling storehouse, is cooled down to from pelletizing after the sintering that the agglomerating chamber is transported to the cooling storehouse；
The outside of cooling storehouse is arranged in the entrance of the venting channels, which passes through the inside of cooling storehouse；Cooling air
Body enters in venting channels and the heat of absorption pelletizing exchanges heat in cooling storehouse, the coolant cooling ball in supplement heat rejecter storehouse
Group, cooling gas become burning gases after absorbing heat, flow into introduction passage with the condition of high temperature, and then flow into agglomerating chamber and to fire
Material is more easier oxidizing fire；The high-temperature gas of agglomerating chamber's outflow enters in drying device before the sintering of assistance desiccant dryness
The effect of pelletizing；
Drying device is made of the dryness storehouse of 2 autonomous closures；There is partition wall between 2 dryness storehouses, it is only only pre- on partition wall
The space that transporter passes through is stayed, the temperature range of two dryness storehouses is different: close to the dryness storehouse temperature 200-250 of feed end
℃；Dryness storehouse temperature close to agglomerating chamber is 360-450 DEG C higher；
The inlet of the venting channels is provided with 1 air blower；Cooling gas is entered in venting channels by the air blower,
And regulating valve inputs there are two entering at cooling Hatch Opening and be arranged in venting channels to control respectively to different venting channels
The size of intake；
The lower part of the sintering equipment is provided with 1 exhaust fan, the gas for extracting in venting channels enters introduction passage
After enter back into agglomerating chamber, and enter back into drying device；
It further include sequentially connected electric precipitator, 1 exhaust fan and exhaust chimney；The gas being discharged out of drying device and cooling storehouse
Body is discharged after exhaust fan extracts by exhaust chimney again after electric precipitator dedusting.
2. pellet sintering equipment as described in claim 1, which is characterized in that further include positioned at the sintering equipment, dry dress
It sets and is used to convey pelletizing and pass sequentially through the drying in the same horizontal line with the transporter inside cooling device, the transporter
Device, sintering equipment and cooling device；The drying device, sintering equipment and cooling device are the structures of autonomous closure, fortune
Defeated machine is sealed in drying device, sintering equipment and cooling device internal operation.
3. pellet sintering equipment as described in claim 1, which is characterized in that the introduction passage is arranged in the sintering equipment
Top, and the introduction passage is connect with the agglomerating chamber；The agglomerating chamber is used for the sintering of pelletizing；The introduction passage is one
A hollow pipe structure, inside builds refractory material protective layer, close to the closed at one end of drying device, the opening of the other end with
Cooling device is connected.
4. pellet sintering equipment as claimed in claim 3, which is characterized in that the agglomerating chamber include burner and fuel into
Mouthful；The fuel inlet is used to continuously supply fuel to burner, and the fuel inlet is arranged on the outside of agglomerating chamber；The combustion
Burn device be arranged inside agglomerating chamber, the burner make fuel inlet input fuel burn, while with the introducing
Channel connection.
5. pellet sintering equipment as described in claim 1, which is characterized in that the gas for entering the introduction passage is divided into two
Point, a part of gas enters burner through pipeline and directly participates in burning, referred to as a combustion air；Another part gas is through pipeline
Into inside agglomerating chamber, play the role of concurrent heating and secondary combustion-supporting, referred to as secondary combustion-supporting wind.
6. pellet sintering equipment as described in claim 1, which is characterized in that be placed with desiccant in the dryness storehouse, be used for
Pelletizing before drying and sintering；It is placed with coolant in the cooling storehouse, for cooling down sintered pelletizing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610791471.8A CN106435165B (en) | 2016-08-31 | 2016-08-31 | A kind of pellet sintering equipment |
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| CN201610791471.8A CN106435165B (en) | 2016-08-31 | 2016-08-31 | A kind of pellet sintering equipment |
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| CN106435165A CN106435165A (en) | 2017-02-22 |
| CN106435165B true CN106435165B (en) | 2019-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3667221A1 (en) * | 2018-12-11 | 2020-06-17 | Paul Wurth S.A. | Induration machine |
| CN110449452A (en) * | 2019-09-12 | 2019-11-15 | 秦皇岛开发区春光铸造机械有限公司 | A kind of device and method of continuous internal-combustion mode renovation of organic pollution soil |
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| GB994588A (en) * | 1962-02-12 | 1965-06-10 | Metallgesellschaft Ag | Process and apparatus for fire-hardening pellets |
| US3318590A (en) * | 1965-02-10 | 1967-05-09 | Mckee & Co Arthur G | Moving bed agglomeration apparatus |
| US3868246A (en) * | 1971-07-22 | 1975-02-25 | Dravo Corp | Pellet production process |
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| CN106435165A (en) | 2017-02-22 |
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