CN207335408U - A kind of chloridising roasting rotary kiln - Google Patents
A kind of chloridising roasting rotary kiln Download PDFInfo
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- CN207335408U CN207335408U CN201720852619.4U CN201720852619U CN207335408U CN 207335408 U CN207335408 U CN 207335408U CN 201720852619 U CN201720852619 U CN 201720852619U CN 207335408 U CN207335408 U CN 207335408U
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Abstract
It the utility model is related to a kind of chloridising roasting rotary kiln, including sequentially connected kiln head cover, cylinder and kiln hood, covered with liner on the inner surface of the cylinder, the liner includes polylith and is uniformly distributed the anchored brick for being fixed on cylinder inner surface in axial, and the anchored brick is mainly made of acid or neutral refractory；The cylinder inner surface of the anchored brick both sides is fixed with multiple equally distributed metal anchorages；The liner further includes acid and alkali-resistance high temperature and pours building body, and the high-strength building body of pouring of the acid and alkali-resistance is connected as one by anchored brick and metal anchorage with cylinder.The chloridising roasting rotary structure of the utility model is stablized, and inner liner of rotary kiln and the synchronism that cylinder operates are good, and with the change of temperature, inner liner of rotary kiln is not likely to produce crack；Acidproof alkali ability is strong, its liner is mainly poured using the strong refractory material of acidproof alkali ability and formed；By acting synergistically of both structure and material, the acid and alkali-resistance erosiveness of rotary kiln is greatly improved, so as to improve service life.
Description
Technical field
A kind of chloridising roasting rotary kiln is the utility model is related to, is particularly suitable for chlorine-resistant acid attack in hot and humid environment
Rotary kiln.
Background technology
Rotary kiln refers to rotary calcining kiln, the Thermal Equipment heated to bulk or pasty material.Its main feature is that：
（1）Low-speed heave-load；（2）Environment temperature is high, and cylinder of rotary kiln surface temperature is often more than 200 DEG C, and radiation is substantial amounts of around
Heat；（3）Environment dust is more, and the band and kiln ash conveying equipment and kiln tail chimney of rotary kiln are scattered dust to surrounding；（4）
It is different and different with each section of band temperature that kiln lining breaks round trip degree, easily causes the damage of local refractory material；（5）There are powder slip in kiln
Accumulation, the roasting of partial particulate material is impermeable, causes the quality of powder " dead roasting " and granule materials can not ensure.Chlorizing calcination process
During can produce Cl-, especially in hot and humid environment, chloric acid is also easy to produce, corrodes dusting inner liner of rotary kiln.According to tradition
Ring build refractory brick, its great advantage is easily to build readily removable, and torque resistant performance is good.But circumferential weld is straight-through seam, anti-to contain Cl-The energy of gas
Power is weaker, and easily causing local refractory damage causes rotary kiln masonry to collapse, and is forced to stop kiln, operating rate is relatively low.If in addition, letter
Single ground sets the anchoring piece made of steel in liner, and steel and castable coefficient of thermal expansion and contraction are inconsistent, easily produces and splits
Seam, under perchloric acid environment, aggravates the corrosion and damage of kiln lining.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, there is provided a kind of strong chlorination of acid and alkali-resistance erosiveness
Calcination rotary kiln, to improve the service life of chloridising roasting rotary kiln.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of chloridising roasting rotary kiln, including according to
Kiln head cover, cylinder and the kiln hood of secondary connection, covered with liner, the liner are in axis including polylith on the inner surface of the cylinder
To the anchored brick that is fixed on cylinder inner surface is uniformly distributed, the anchored brick is mainly made of acid or neutral refractory；Institute
The cylinder inner surface for stating anchored brick both sides is fixed with multiple equally distributed metal anchorages；The liner further includes acid and alkali-resistance height
Temperature pours building body, and the high-strength building body of pouring of the acid and alkali-resistance is connected as one by anchored brick and metal anchorage with cylinder.
Using such structure design, the metal anchorage being fixed on cylinder can drive acid and alkali-resistance high temperature to pour building body with cylinder
Body rolls rotation together, and reduction acid and alkali-resistance high temperature is poured building body and is damaged with cylinder due to relative motion；Meanwhile anchored brick is main
Non-metallic refractory similar in acid and alkali-resistance high temperature pouring building body as thermal coefficient of expansion is made, and thermal matching is preferable, and rotary kiln is opened
During stopping, crack is not likely to produce, ensures the stability of inner lining structure, improves the service life of rotary kiln.
Further, the metal anchorage includes V-type anchoring piece and/or Y type anchoring pieces, it is preferable that the metal anchors
Firmware includes V-type anchoring piece and Y type anchoring pieces, and two kinds of anchoring pieces distribute alternately along barrel lenght direction, so by a variety of different
The mating reaction of type anchoring piece, further reduces the relative motion trend between cylinder and liner, improves structural stability.
Further, spacing of the metal anchorage in barrel lenght direction is 100 ~ 200mm, is preferably 150mm,
The spacing of cylinder circumferencial direction is 150 ~ 250mm, is preferably 200mm.
Preferably, the anchored brick is high-alumina brick, and high-alumina brick high-temerature creep is small, corrosion resistance is strong, good thermal shock stability.
Further, the acid and alkali-resistance it is high-strength pour building body and mainly poured by composite high-strength resistant to corrosion castable form, wherein,
Al2O3Content be not less than 70wt.%.
Further, the high-strength thickness for pouring building body of the acid and alkali-resistance is 200 ~ 300mm, is preferably 240 ~ 260mm, ensures good
While the heat-insulating property got well, appropriate lightweight, the relative motion trend between reduction and cylinder.
Further, the kiln head cover, kiln hood are connected by elastic sealing device with cylinder respectively.Elastic sealing device
The advantages that good, high temperature resistant with wear-resisting property, sealing effect is good.Preferably, acidproof asbestos rubber is used with smoke contacts position
Plate anti-corrosion.
Kiln hood is equipped with suction opening, for adjusting tiny structure in kiln hood, easy to the improvement of flue dust.
Further, it is trapezoidal material blocking ring that the interior lining, which is provided with least two cross sections,.Preferably, material blocking ring by
High-strength low creep anchored brick is formed with triangle stainless steel anchoring piece.During operation when material passes through material blocking ring, rolling is produced, is changed
Material flow harness shape is become, has made material increased resident time in kiln, equivalent to kiln body length is increased, strengthened reacting strong in kiln
To spend, thermal capacity increase, can enhance production capacities in kiln, and beneficial to segmentation maintenance.
Further, at least two rows of material distributing cones are further included, each material distributing cone of arranging is uniformly distributed in liner inner surface.
Further, the distance of the material distributing cone and rotary kiln feed end is 5 ~ 7m.
The setting of material distributing cone can in rotary kiln running uniform stirring turning over materials, prevent material olistostrome knot in kiln
Block.
The chloridising roasting rotary structure of the utility model is stablized, and inner liner of rotary kiln and the synchronism that cylinder operates are good, with
The change of temperature, inner liner of rotary kiln is not likely to produce crack；Acidproof alkali ability is strong, its liner is mainly strong using acidproof alkali ability
Refractory material, which pours, to be formed；By synergistic effect of both structure and material, the acid and alkali-resistance for greatly improving rotary kiln corrodes energy
Power, so as to improve service life.
Brief description of the drawings
Fig. 1 is the sectional view of the rotary kiln of the utility model the first embodiment.
Fig. 2 is the cylinder of the rotary kiln of the first embodiment of the utility model and the cross-section structure detail drawing of liner.
Embodiment
Describe the utility model in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the utility model can be mutually combined.For sake of convenience, hereinafter such as
There are " on ", " under ", "left", "right" printed words, only represent that the upper and lower, left and right direction with attached drawing in itself is consistent, not to structure
Play restriction effect.
Fig. 1 is the sectional view of the rotary kiln of the utility model the first embodiment.Specifically, which turns round
Kiln, including sequentially connected kiln head cover 3, cylinder 1 and kiln hood 5, it is described covered with liner 10 on the inner surface of the cylinder 1
Liner 10 includes polylith and is uniformly distributed the anchored brick 103 for being fixed on 1 inner surface of cylinder in axial, the anchored brick 103 mainly by
Acid or neutral refractory is made；1 inner surface of cylinder of 103 both sides of anchored brick is fixed with multiple equally distributed metals
Anchoring piece 102；The liner 10 further includes acid and alkali-resistance high temperature and pours building body 101, and the high-strength building body 101 of pouring of the acid and alkali-resistance passes through anchored brick
103 and metal anchorage 102 be connected as one with cylinder（See Fig. 2）.In this way, kiln body liner 10 adds acid and alkali-resistance high-strength for anchoring piece
Pour into a mould package integral liner.
Wherein, metal anchorage includes the V-type anchoring piece to distribute alternately successively along rotary kiln length direction and the anchoring of Y types
Part.The tune flame fuel burner nozzle 6 stretched into rotary kiln is fixed with kiln head cover 2, adjusts flame fuel burner nozzle 6 to stretch into the length in rotary kiln
For 5 ~ 7m, adjust flame fuel burner nozzle 6 to ensure 8 ~ 10 meters of the length of flame, beneficial to material temperature drop, mitigate the burden of follow-up cooling device,
Also the utilization rate of heat input in reaction process can be improved.
Kiln hood 5 is equipped with suction opening 4, for adjusting tiny structure in kiln hood 5, easy to the improvement of flue dust.
The metal anchorage 102 is 150mm in the spacing of 1 length direction of cylinder, is in the spacing of 1 circumferencial direction of cylinder
200mm。
The anchored brick 103 is high-alumina brick.
The acid and alkali-resistance is high-strength to be poured building body 101 and is mainly poured by composite high-strength resistant to corrosion castable and form, wherein, Al2O3's
Content is not less than 70wt.%.
The high-strength thickness for pouring building body 101 of the acid and alkali-resistance is 250mm.
The kiln head cover 3, kiln hood 5 are connected by elastic sealing device 2 with cylinder 1 respectively.
It is trapezoidal material blocking ring 12 that at least two cross sections are provided with the liner 10.
The chloridising roasting revolution further includes at least two rows of material distributing cones 11, and each material distributing cone 11 of arranging is uniformly distributed in liner 10
Surface.
Cylinder 1 is equipped with secondary air device 7, and secondary air device 7 can be according to pyroreaction hop count group temperature measuring equipment 8
The temperature of position flue gas and material, frequency control adjust secondary air flow, the temperature of each section of band in balanced kiln.
Cylinder of rotary kiln 1 is equipped with power transmission slip ring 9, powers for the secondary air device 7 in operating kiln body.
The chloridising roasting rotary kiln of present embodiment adds the high-strength cast package integral liner of acid and alkali-resistance using metal anchorage,
And certain amount material distributing cone and collet are set, strength imparting material stirring is stirred, and is prevented material olistostrome in kiln from luming, is changed
Material flow harness shape, residence time of the increase material in kiln, improves yield rate；Each air hose of kiln body secondary air device is same
Temperature measuring equipment is set on section, the intake of overfire air fan on the one hand can be adjusted according to kiln atmosphere and temperature of charge；It is another
Aspect can be with moving situation of the reaction mass in kiln.The material ceaselessly price hike in rotary kiln, kiln temperature are up to hundreds of degree,
Chloridising roasting rotary kiln be meet the material of chlorination reaction rotary kiln from cold conditions be heated to reaction state with it is hot defeated in reaction process
Entering, chloridising roasting rotary kiln, which is equipped with, is passed through 5 ~ 7 meters in kiln of tune flame fuel burner nozzle, while mitigates the burden of follow-up cooling device,
But kiln gas contain substantial amounts of dust, such as it is untreated, on the one hand heat can be conducted, reaction be smoothed out producing it is unfavorable
Influence, on the other hand, various dust emerge in equipment gap, cause working environment severe, influence health, most important
It is that, when final material discharges rotary kiln, outlet can carry very more dust secretly, be unfavorable for the collection of reaction mass, in kiln tail
It is provide with and puts suction opening and be used for smoke and dust treatment.In addition, in the components such as the cylinder of revolution and fixed attachment device such as kiln head cover, kiln tail
Between cover, unavoidably there are gap, to prevent outside air is sucked in kiln and at some positions from preventing furnace air belongings
Material leaks, it is necessary to has sealing device, can set kiln head and tail elastic sealing device, and and smoke contacts in chloridising roasting rotary kiln
Position uses acidproof asbestos packing sheet anti-corrosion.
The content that above-described embodiment illustrates should be understood to that these embodiments are only used for being illustrated more clearly that the utility model,
Rather than limitation the scope of the utility model, after the utility model has been read, those skilled in the art are new to this practicality
The modification of the various equivalent forms of type each falls within the application appended claims limited range.
Claims (9)
1. a kind of chloridising roasting rotary kiln, including sequentially connected kiln head cover（3）, cylinder（1）And kiln hood（5）, its feature exists
In the cylinder（1）Inner surface on covered with liner（10）, the liner（10）Including polylith fixation is uniformly distributed in axial
In cylinder（1）The anchored brick of inner surface（103）, the anchored brick（103）Mainly it is made of acid or neutral refractory；It is described
Anchored brick（103）The cylinder of both sides（1）Inner surface is fixed with multiple equally distributed metal anchorages（102）；The liner
（10）Further include acid and alkali-resistance high temperature and pour building body（101）, the acid and alkali-resistance is high-strength to pour building body（101）Pass through anchored brick（103）And metal
Anchoring piece（102）It is connected as one with cylinder.
2. chloridising roasting rotary kiln according to claim 1, it is characterised in that the metal anchorage is anchored including V-type
Part and/or Y type anchoring pieces.
3. chloridising roasting rotary kiln according to claim 1, it is characterised in that the metal anchorage（102）In cylinder
（1）The spacing of length direction is 100 ~ 200mm, in cylinder（1）The spacing of circumferencial direction is 150 ~ 250mm.
4. chloridising roasting rotary kiln according to claim 1, it is characterised in that the anchored brick（103）For high-alumina brick.
5. chloridising roasting rotary kiln according to claim 1, it is characterised in that the acid and alkali-resistance is high-strength to pour building body（101）
Thickness be 200 ~ 300mm.
6. chloridising roasting rotary kiln according to claim 1, it is characterised in that the kiln head cover（3）, kiln hood（5）Point
Elastic sealing device is not passed through（2）With cylinder（1）Connection.
7. chloridising roasting rotary kiln according to claim 1, it is characterised in that the liner（10）On be provided with least two
A cross section is trapezoidal material blocking ring（12）.
8. chloridising roasting rotary kiln according to claim 1, it is characterised in that further include at least two rows of material distributing cones（11）,
Each row's material distributing cone（11）It is uniformly distributed in liner（10）Inner surface.
9. chloridising roasting rotary kiln according to claim 8, it is characterised in that the material distributing cone（11）Fed with rotary kiln
The distance at end is 5 ~ 7m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720852619.4U CN207335408U (en) | 2017-07-14 | 2017-07-14 | A kind of chloridising roasting rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720852619.4U CN207335408U (en) | 2017-07-14 | 2017-07-14 | A kind of chloridising roasting rotary kiln |
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| Publication Number | Publication Date |
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| CN207335408U true CN207335408U (en) | 2018-05-08 |
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ID=62377841
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| CN201720852619.4U Active CN207335408U (en) | 2017-07-14 | 2017-07-14 | A kind of chloridising roasting rotary kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113247909A (en) * | 2021-05-17 | 2021-08-13 | 李朝侠 | Process for recycling red mud by rotary kiln method and rotary kiln |
-
2017
- 2017-07-14 CN CN201720852619.4U patent/CN207335408U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113247909A (en) * | 2021-05-17 | 2021-08-13 | 李朝侠 | Process for recycling red mud by rotary kiln method and rotary kiln |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190823 Address after: 410019 Qingxi Chuanjiu Office Building and 113 Comprehensive Building, 299 Mulian East Road, Yuhua District, Changsha City, Hunan Province Patentee after: China Aluminum Environmental Protection and Energy Saving Technology (Hunan) Co., Ltd. Address before: 410019 Hunan province Changsha Yuhua District, Magnolia Road No. 299 Patentee before: Changsha Engineering & Research Institute of Nonferrous Metallurgy Co., Ltd. |