CN108800921A - A kind of rotary kiln for calcining phosphorus ore - Google Patents
A kind of rotary kiln for calcining phosphorus ore Download PDFInfo
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- CN108800921A CN108800921A CN201810910232.9A CN201810910232A CN108800921A CN 108800921 A CN108800921 A CN 108800921A CN 201810910232 A CN201810910232 A CN 201810910232A CN 108800921 A CN108800921 A CN 108800921A
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- kiln
- calcining
- preheating
- phosphorus ore
- cooling
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
- F27B2009/122—Preheating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
- F27B2009/124—Cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The present invention is suitable for phosphorus ore production equipment field, disclose a kind of rotary kiln for calcining phosphorus ore, including the preheating kiln set gradually, calcining kiln and cooling kiln, preheating kiln, calcining kiln and cooling kiln are hollow cylindrical configuration, preheating kiln, the height of calcining kiln and cooling kiln reduces successively, preheating kiln, the kiln hood that calcining kiln and cooling kiln are separately provided for the driving device preheating kiln that driving is respectively rotated is provided with feed inlet, the kiln tail of calcining kiln is connected with the outlet for receiving the phosphorus ore after being calcined through calcining kiln, outlet has for phosphorus ore to be drained into the discharge port in cooling kiln, the kiln hood of cooling kiln is set to the lower section of discharge port, it is respectively arranged with first shovelling plate and second shovelling plate of the polylith for transporting phosphorus ore and phosphorus ore stir-frying in preheating kiln and cooling kiln.A kind of rotary kiln for calcining phosphorus ore provided by the present invention can accelerate the efficiency of heating surface of the phosphorus ore in preheating kiln and accelerate cooling efficiency of the phosphorus ore in cooling kiln, to improve production efficiency.
Description
Technical field
The invention belongs to phosphorus ore production equipment field more particularly to a kind of rotary kilns for calcining phosphorus ore.
Background technology
Rock phosphate in powder is the starting point of phosphorus chemical industry, is the initial material of all downstream phosphorus chemical industry products, with rich ore, Yi Xuan
The reduction of mine develops and uses the phosphorus ore containing a large amount of carbonate and just becomes more and more important.Due to the presence of carbonate, exist in rock phosphate in powder
10% or so mistake rate, in order to improve the yield of phosphorus, therefore the rock phosphate in powder in phosphorus production needs, by working process, to remove phosphorus ore
In the organic matters such as carbonate, to improve the phosphorus content in phosphorus ore.It is calcined in rock phosphate in powder in existing phosphorus ore calcining kiln
Journey need to preheat it to ensure that phosphorus ore can be calcined adequately, during rock phosphate in powder heats in kiln, phosphorus ore phase
To being piled up in the bottom of kiln, the heat of rotary kiln body bottom can only be used, and phosphorus ore uneven heating can be caused even, need to increase
The mine that phosphorates heating time just can ensure that its heating effect, more to the resource that phosphorus ore heating is consumed, to heat in high temperature air
Utilization rate is low, so as to cause production cost height.
Invention content
The present invention is directed at least solve one of above-mentioned technical problem, a kind of rotary kiln for calcining phosphorus ore can be accelerated
The cooling efficiency of the efficiency of heating surface of the phosphorus ore in preheating kiln and quickening phosphorus ore in cooling kiln, improves production efficiency.
The technical scheme is that：It is a kind of for calcining the rotary kiln of phosphorus ore, including set gradually preheating kiln, calcining
Kiln and cooling kiln, the preheating kiln, the calcining kiln and the cooling kiln are hollow cylindrical configuration, the preheating kiln, described
The height of calcining kiln and the cooling kiln reduces successively, and the preheating kiln, the calcining kiln and the cooling kiln are respectively arranged with
For driving the first driving means, the second driving device and the third driving device that are respectively rotated, the kiln of the preheating kiln
Head is provided with feed inlet, and the kiln tail of the calcining kiln is connected with for receiving the discharging from the phosphorus ore after calcining kiln calcining
Part, the outlet have for phosphorus ore to be drained into the discharge port in the cooling kiln, and the kiln hood of the cooling kiln is set on described
Polylith is respectively arranged in the lower section of discharge port, the preheating kiln and the cooling kiln for transporting phosphorus ore and phosphorus ore stir-frying
First shovelling plate and the second shovelling plate.
Optionally, the volume relationship of the preheating kiln, the calcining kiln and the cooling kiln is π (d2/2) 2*L2=K1 π
(d1/2) value of 2*L1=K2 π (d3/2) 2*L3, K1≤K2, and K1 and K2 is in the range of 1.3 to 3.9, wherein d1 is described
The kiln cylinder body outer diameter of preheating kiln, d2 are the kiln cylinder body outer diameter of the calcining kiln, and d3 is the kiln cylinder body outer diameter of the cooling kiln, and L1 is
The kiln cylinder body length of the preheating kiln, L2For the kiln cylinder body length of the calcining kiln, L3For the kiln cylinder body length of the cooling kiln.
Optionally, the kiln cylinder body overall diameter relationship of the preheating kiln, the calcining kiln and the cooling kiln is：d2﹥ d1≥
d3, and the kiln cylinder body length relation of the preheating kiln, the calcining kiln and the cooling kiln is：L2> L3> L1。
Optionally, the inner wall of the preheating kiln is provided with insulating layer.
Optionally, the inner wall of the calcining kiln is provided with flame retardant coating.
Optionally, the kiln cylinder body axle center of the preheating kiln and the calcining kiln is on same straight line, the preheating kiln
Tail portion kiln cylinder body is extend into the kiln hood of the calcining kiln, and the kiln hood of the calcining kiln is provided with for sealing the preheating kiln
The ring type seal in gap between the calcining kiln.
Optionally, the inner wall of the calcining kiln is provided with fire clay in the kiln cylinder body intersection with the preheating kiln, and
The thickness of the fire clay is identical as the thickness of the flame retardant coating.
Optionally, the axis of the kiln cylinder body of the preheating kiln, the calcining kiln and the cooling kiln is distinguished with horizontal plane
In 3 ° -10 ° of angle.
Optionally, the height of first shovelling plate and second shovelling plate is 0.2-3 times of the fire resisting layer height.
Optionally, the first shovelling plate axially arranges in the shape of a spiral along the preheating kiln, and second shovelling plate is along the cooling kiln
It is axial to arrange in the shape of a spiral.
A kind of rotary kiln for calcining phosphorus ore provided by the present invention, to the size of preheating kiln, calcining kiln and cooling kiln
Carry out reasonable disposition so that there is phosphorus ore the sufficient time to be heated, calcined and be cooled down, by preheating kiln and cooling kiln
The first shovelling plate and the second shovelling plate is respectively set, phosphorus ore is transported to by the first shovelling plate at the top of preheating kiln in preheating kiln, preheating kiln bottom
The phosphorus ore in portion can be constantly raised, and realize the stir-frying of phosphorus ore, phosphorus ore is avoided to accumulate, and the heat transfer efficiency to improve phosphorus ore makes it
It is even heated, to make phosphorus ore that can obtain calcining faster evenly in calcining kiln, reduce energy consumption；The phosphorus ore in cooling kiln
It is transported at the top of cooling kiln by the second shovelling plate, the phosphorus ore in cooling kiln bottom portion can be constantly raised, and fully carry out heat with cold air
It exchanges, heat is taken away by air, to improve the heat dissipation effect of phosphorus ore, effectively accelerated the production cycle, and production efficiency is improved.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of rotary structure schematic diagram for calcining phosphorus ore provided in an embodiment of the present invention；
Fig. 2 is the sectional view at A-A in Fig. 1.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that term " setting ", " connection " shall be understood in a broad sense, for example, it may be directly setting, connection,
It can also be indirectly arranged by component placed in the middle, center configuration, connected.
If in addition, have in the embodiment of the present invention " length ", " width ", " thickness ", "upper", "lower", "front", "rear", " left side ",
The term of the orientation or positional relationship of instructions such as " right side ", "top", "bottom" "inner", "outside", be orientation based on ... shown in the drawings or
Position relationship or conventional placement status or use state, are merely for convenience of description of the present invention and simplification of the description, without referring to
Show or implies that signified structure, feature, device or element must have a particular orientation or position relationship, nor is it necessary that with spy
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In the description of the present invention, unless otherwise saying
Bright, the meaning of " plurality " is two or more.
Described each particular technique feature and each embodiment in a specific embodiment, in the case of no contradiction,
It can be combined by any suitable means, such as can be with shape by the combination of different particular technique feature/embodiments
At different embodiments, in order to avoid unnecessary repetition, each the various of particular technique feature/embodiment can in the present invention
The combination of energy no longer separately illustrates.
As depicted in figs. 1 and 2, a kind of rotary kiln for calcining phosphorus ore provided in an embodiment of the present invention, for phosphorus ore
It carries out calcination processing and obtains phosphorus ore clinker, remove the organic matter in phosphorus ore, to improve the phosphorus content in rock phosphate in powder, including set successively
Preheating kiln 1, calcining kiln 2 and the cooling kiln 3 set, the preheating kiln 1, calcining kiln 2 and cooling kiln 3 are hollow cylindrical configuration, institute
State the height of preheating kiln 1, the calcining kiln 2 and the cooling kiln 3 reduces successively, and phosphorus ore can under the effect of gravity, by preheating kiln 1
Cooling kiln 3 is moved to, the preheating kiln 1, the calcining kiln 2 and the cooling kiln 3 are separately provided for driving respective progress
The first driving means 401 of rotation, the second driving device 402 and third driving device 403, the kiln hood setting of the preheating kiln 1
There are feed inlet 11, the kiln tail of the calcining kiln 2 to be connected with for receiving the outlet from the phosphorus ore after the calcining of the calcining kiln 2
5, the outlet 5 has for phosphorus ore to be drained into the discharge port 51 in the cooling kiln 3, and the kiln hood of the cooling kiln 3 is set to
It is separately provided for transporting phosphorus ore in the lower section of the discharge port 51, the preheating kiln 1 and the cooling kiln 3 and turns over phosphorus ore
The first shovelling plate 6 and the second shovelling plate 7 fried, the first shovelling plate 6 are fixedly connected on the inner wall of preheating kiln 1, and the second shovelling plate 7 is fixedly connected on
The inner wall of cooling kiln 3.When work, under the effect of driving device 4, preheating kiln 1, calcining kiln 2 and cooling kiln 3 turn around respective axis
It is dynamic, and the rotating speed of preheating kiln 1, calcining kiln 2 and cooling kiln 3 can be adjusted, phosphorus ore heating in preheating kiln 1 removes moisture,
Under 1 rotation of preheating kiln and its own gravity, it can be moved to calcining kiln 2, during which, phosphorus ore is always opposite to be piled up in 1 bottom of preheating kiln,
Heat transfer efficiency is low, causes uneven heating even, can increase the heating time of phosphorus ore, the energy consumption of phosphorus ore heating is increased, by setting
Set the first shovelling plate 6, the first shovelling plate 6 is rotated with preheating kiln 1, phosphorus ore can by the first shovelling plate by 1 bottom belt of preheating kiln to top, and fall
Fall can the bottom of preheating kiln 1 realize stir-frying to phosphorus ore as phosphorus ore will be constantly raised and fall, meanwhile, phosphorus ore from
Be lifted to the process of falling, adequately with hot-air carry out heat exchange, can thermally equivalent, accelerate calcinating speed, by cold
Second shovelling plate 7 is but set in kiln 3, and the second shovelling plate 7 is rotated with cooling kiln 3, and phosphorus ore can be by the second shovelling plate 7 by cooling 3 bottom belt of kiln
To top, and the bottom that can cool down kiln 3 is fallen, phosphorus ore constantly will be raised and fall, and fully carry out hot friendship with cold air
It changes, takes away the heat in phosphorus ore, to improve the heat dissipation effect of phosphorus ore.It can effectively reduce the consumption of the energy, accelerate phosphorus ore
Heating and cooling rate, to improve production efficiency.
In practical application, outlet 5 can be in funnel-form.
Specifically, preheating kiln, calcining kiln and cooling kiln can be respectively arranged with multigroup support roller 10 and support.
Specifically, as shown in Figure 1, driving device 4 include motor 41, with motor 41 export axis connection retarder 42, with
The pinion gear 43 and the gear wheel 44 being engaged with the pinion gear 43 that retarder 42 connects, using gear drive, transmission stability
It is good.It will of course be understood that ground, driving device 4 can also use other kinds of drive.
Specifically, the heating device 9 that hot-air is formed for heating air is may be provided at the kiln tail of calcining kiln 2.It should add
Thermal 9 can be used coil heats or combusting coal fines heating or burning kerosene heating etc. and be heated to air.
Specifically, as shown in Figure 1, the volume relationship of the preheating kiln 1, the calcining kiln 2 and the cooling kiln 3 is π
(d2/2)2*L2=K1π(d1/2)2*L1=K2π(d3/2)2*L3, K1≤K2, and K1And K2Value in the range of 1.3 to 3.9, and
The kiln cylinder body overall diameter relationship of the preheating kiln 1, the calcining kiln 2 and the cooling kiln 3 is：d2﹥ d1≥d3, the preheating kiln
1, the kiln cylinder body length relation of the calcining kiln 2 and the cooling kiln 3 is：L2> L3> L1, wherein d1For the preheating kiln 1
Kiln cylinder body outer diameter, d2For the kiln cylinder body outer diameter of the calcining kiln 2, d3For the kiln cylinder body outer diameter of the cooling kiln 3, L1It is described pre-
The kiln cylinder body length of heating kiln 1, L2For the kiln cylinder body length of the calcining kiln 2, L3For the kiln cylinder body length of the cooling kiln 3, to pre-
The length and diameter of heating kiln 1, calcining kiln 2 and cooling kiln 3 is reasonably configured, optimization preheating kiln 1, calcining kiln 2 and cooling kiln 3
Between relationship, ensure that phosphorus ore has enough heating, calcining and cooling time in preheating kiln 1, calcining kiln 2 and cooling kiln 3,
The organic matter being effectively removed in rock phosphate in powder improves the phosphorus content in phosphorus ore clinker.
In the embodiment of the present invention, the length of calcining kiln 2 is 45m, outer diameter 3m, and preheating kiln 1 and the length of cooling kiln 3 are
20m, outer diameter 2.5m, at this time K1=K2=2.6.
Specifically, preheating kiln 1, calcining kiln 2 and cooling kiln 3 can be respectively arranged with multigroup support roller 10 and support.
Specifically, as shown in Fig. 2, the inner wall of the preheating kiln 1 may be provided with insulating layer 11, since heating device 9 is separate
Preheating kiln 1, therefore in order to ensure the temperature of preheating kiln 1 is sufficiently high, preheating kiln 1 is kept the temperature by the way that insulating layer 11 is arranged.This hair
It in bright embodiment, is pasted with sintering feed in the inner wall of preheating kiln 1 and it is kept the temperature, also protect preheating kiln 1 that can sustain
The thickness of higher temperature, sintering feed can be 0.05-0.30m.
Specifically, as shown in Fig. 2, the inner wall of the calcining kiln 2 may be provided with flame retardant coating 21, the thickness of flame retardant coating 21 can be
The 3%-15% of 2 kiln cylinder body outer diameter of calcining kiln.The operating temperature of calcining kiln 2 is high, therefore calcining kiln 2 is needed to have good high temperature resistant
Ability, so that it is guaranteed that its service life.In the embodiment of the present invention, high-alumina brick or ceramics can be equipped on the inner wall of calcining kiln 2
The thickness of brick, flame retardant coating 21 can be 10-40cm so that calcining kiln 2 can bear high-temperature baking and good heat conductivity.
Specifically, as shown in Fig. 2, the axle center of 2 kiln cylinder body of the preheating kiln 1 and the calcining kiln can be at same straight line
On, and the tail portion kiln cylinder body of the preheating kiln 1 is extend into the kiln hood of the calcining kiln 2, the two transition and linkage so that phosphorus ore can
To be smoothly discharged into calcining kiln 2.In the embodiment of the present invention, the built-in length D that preheating kiln 1 stretches into 2 kiln cylinder body of calcining kiln is
0.5m, to avoid phosphorus ore unrestrained from the interface of preheating kiln 1 and calcining kiln 2.It will of course be understood that ground, preheating kiln 1 is being calcined
Built-in length D in 2 kiln cylinder body of kiln may be other suitable values.
Specifically, as shown in Fig. 2, the kiln hood of the calcining kiln 2 may be provided with is forged with described for sealing the preheating kiln 1
The ring type seal 8 in gap between firing 2, for sealing the gap between preheating kiln 1 and calcining kiln 2.
Specifically, as shown in Fig. 2, the inner wall of the calcining kiln 2 can be set in the kiln cylinder body intersection with the preheating kiln 1
It is equipped with fire clay 22, and the thickness of the fire clay 22 is identical as the thickness of the flame retardant coating 21.For protecting intersection to forge
The outer wall of the inner wall and preheating kiln 1 of firing 2 avoids preheating kiln 1 and calcining kiln 2 because rotation is worn each other, destroys calcining kiln 2
With the structure of preheating kiln 1.
In practical application, there can be gap between calcining kiln 2 and the intersection of preheating kiln 1, by carrying out reasonable disposition
It sets the distance in the gap to 1-5cm, can avoid during calcining kiln 2 and preheating kiln 1 rotate, being worn to each other, into
One step protects the outer wall in the inner wall and preheating kiln 1 of intersection calcining kiln 2.
Specifically, as shown in Figure 1, the axis of the kiln cylinder body of the preheating kiln 1, the calcining kiln 2 and the cooling kiln 3 is equal
It is in 3 ° -10 ° of angle α respectively with horizontal plane.
Specifically, the axis of the preheating kiln 1, the calcining kiln 2 and the cooling kiln 3 is horizontal by 3 ° -5 °
Angle.The angle for optimizing angle α to control the gradient of preheating kiln 1, calcining kiln 2 and cooling kiln 3, and then reaches control phosphorus ore
Movement velocity so that phosphorus ore in kiln have sufficient calcination time, remove phosphorus ore in organic matter, improve the phosphorus of rock phosphate in powder
Content.
In the embodiment of the present invention, the angle α of preheating kiln 1, the axis of calcining kiln 2 and cooling kiln 3 and horizontal plane is 4.5 °, when
So, it is possible to understand that the angle α on ground, preheating kiln 1, the axis of calcining kiln 2 and cooling kiln 3 and horizontal plane may be that other are suitable
Angle.
Specifically, the height of first shovelling plate 6 and second shovelling plate 7 is the 0.2-3 of 21 height of the flame retardant coating
Times, the first shovelling plate 6 can in the shape of a spiral be arranged along the preheating kiln 1 is axial, second shovelling plate 7 can along the cooling kiln axis 3 to
It arranges in the shape of a spiral.The shovelling plate of helical structure can transport phosphorus ore and stir-fry to it, while can also increase phosphorus ore in preheating kiln 1
With the travel of 3 inside of cooling kiln, to increase phosphorus ore in preheating kiln 1 and cool down the run duration in kiln 3, it is ensured that phosphorus ore exists
Fully heating is carried out in preheating kiln 1 and the cooling effect in cooling kiln 3 is good.
As another embodiment, the first shovelling plate 6 can axially be arranged in a linear along the preheating kiln 1, and the second shovelling plate 7 can
Along the cooling kiln axis 3 to being arranged in a linear.
Specifically, the sense of monitoring temperature can be separately provided in the preheating kiln 1, calcining kiln 2 and/or cooling kiln 3
Warm element.Temperature-sensing element has multiple, is respectively arranged in preheating kiln 1, calcining kiln 2 and cooling kiln 3 everywhere, realize to preheating kiln 1,
The real time monitoring of temperature of each section in calcining kiln 2 and cooling kiln 3, can adjust the temperature in preheating kiln 1, calcining kiln 2 and cooling kiln 3 in time
Degree.
A kind of rotary kiln for calcining phosphorus ore that the embodiment of the present invention is provided, to preheating kiln 1, calcining kiln 2 and cooling
The size of kiln 3 carries out reasonable disposition so that there is phosphorus ore the sufficient time to be heated, calcined and be cooled down, by preheating kiln 1
The first shovelling plate 6 and the second shovelling plate 7 is respectively set in cooling kiln 3, phosphorus ore is by 6 band of the first shovelling plate to preheating kiln 1 in preheating kiln 1
The phosphorus ore at top, 1 bottom of preheating kiln constantly can be raised and fall under the action of the first shovelling plate 6, realize the stir-frying of phosphorus ore,
Avoid phosphorus ore from accumulating, the heat transfer efficiency to improve phosphorus ore makes its thermally equivalent, to enable phosphorus ore carry out faster evenly plus
Heat reduces energy consumption；Phosphorus ore is transported to 3 top of cooling kiln, the phosphorus ore of 3 bottom of cooling kiln by the second shovelling plate 7 in cooling kiln 3
It can constantly be raised, fully carry out heat exchange with air, heat is taken away by air, can be with to improve the heat dissipation effect of phosphorus ore
Effectively accelerate the production cycle, improves production efficiency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
- Being used to calcine the rotary kiln of phosphorus ore 1. a kind of, including preheating kiln, calcining kiln and the cooling kiln set gradually, the preheating Kiln, the calcining kiln and the cooling kiln are hollow cylindrical configuration, which is characterized in that the preheating kiln, the calcining kiln and The height of the cooling kiln reduces successively, and the preheating kiln, the calcining kiln and the cooling kiln are separately provided for driving First driving means, the second driving device and the third driving device respectively rotated, the kiln hood of the preheating kiln are provided with The kiln tail of feed inlet, the calcining kiln is connected with for receiving the outlet from the phosphorus ore after calcining kiln calcining, described Outlet has for phosphorus ore to be drained into the discharge port in the cooling kiln, and the kiln hood of the cooling kiln is set to the discharge port First shovelling plate of the polylith for transporting phosphorus ore and phosphorus ore stir-frying is respectively arranged in lower section, the preheating kiln and the cooling kiln With the second shovelling plate.
- 2. a kind of rotary kiln for calcining phosphorus ore as described in claim 1, which is characterized in that the preheating kiln described is forged The volume relationship of firing and the cooling kiln is π (d2/2) 2*L2=K1 π (d1/2) 2*L1=K2 π (d3/2) 2*L3, K1≤K2, And the value of K1 and K2 is in the range of 1.3 to 3.9, wherein d1 is the kiln cylinder body outer diameter of the preheating kiln, and d2 is the calcining kiln Kiln cylinder body outer diameter, d3 be the cooling kiln kiln cylinder body outer diameter, L1 be the preheating kiln kiln cylinder body length, L2It is forged to be described The kiln cylinder body length of firing, L3For the kiln cylinder body length of the cooling kiln.
- 3. a kind of rotary kiln for calcining phosphorus ore as claimed in claim 2, which is characterized in that the preheating kiln described is forged The kiln cylinder body overall diameter relationship of firing and the cooling kiln is：d2﹥ d1≥d3, and the preheating kiln, the calcining kiln and described cold But the kiln cylinder body length relation of kiln is：L2> L3> L1。
- 4. a kind of rotary kiln for calcining phosphorus ore as claimed in claim 2, which is characterized in that the inner wall of the preheating kiln is set It is equipped with insulating layer.
- 5. a kind of rotary kiln for calcining phosphorus ore as claimed in claim 3, which is characterized in that the inner wall of the calcining kiln is set It is equipped with flame retardant coating.
- 6. a kind of rotary kiln for calcining phosphorus ore as claimed in claim 5, which is characterized in that the preheating kiln and described forge The kiln cylinder body axle center of firing is on same straight line, and the tail portion kiln cylinder body of the preheating kiln extend into the kiln hood of the calcining kiln It is interior, and the kiln hood of the calcining kiln is provided with the ring packing for sealing gap between the preheating kiln and the calcining kiln Circle.
- 7. a kind of rotary kiln for calcining phosphorus ore as claimed in claim 6, which is characterized in that the inner wall of the calcining kiln exists The kiln cylinder body intersection of the preheating kiln is provided with fire clay, and the thickness of the thickness of the fire clay and the flame retardant coating It is identical.
- 8. a kind of rotary kiln for calcining phosphorus ore as described in claim 1, which is characterized in that the preheating kiln described is forged The axis of the kiln cylinder body of firing and the cooling kiln is in 3 ° -10 ° of angle respectively with horizontal plane.
- 9. a kind of rotary kiln for calcining phosphorus ore as described in claim 1, which is characterized in that first shovelling plate and described The height of second shovelling plate is 0.2-3 times of the fire resisting layer height.
- 10. a kind of rotary kiln for calcining phosphorus ore as claimed in claim 9, which is characterized in that the first shovelling plate is along described pre- Heating kiln axially arranges in the shape of a spiral, and second shovelling plate axially arranges in the shape of a spiral along the cooling kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810910232.9A CN108800921A (en) | 2018-08-10 | 2018-08-10 | A kind of rotary kiln for calcining phosphorus ore |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810910232.9A CN108800921A (en) | 2018-08-10 | 2018-08-10 | A kind of rotary kiln for calcining phosphorus ore |
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| CN108800921A true CN108800921A (en) | 2018-11-13 |
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| CN201810910232.9A Pending CN108800921A (en) | 2018-08-10 | 2018-08-10 | A kind of rotary kiln for calcining phosphorus ore |
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| CN (1) | CN108800921A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631605A (en) * | 2019-01-04 | 2019-04-16 | 贵州芭田生态工程有限公司 | A kind of smoke heat energy recovery method of phosphorus ore calcination rotary kiln |
| CN109701344A (en) * | 2019-01-04 | 2019-05-03 | 贵州芭田生态工程有限公司 | A kind of recycling of calcined by rotary kiln flue gas, purification method |
| CN109780856A (en) * | 2019-01-04 | 2019-05-21 | 贵州芭田生态工程有限公司 | A method of calcining phosphorus ore kiln exhaust gas is for drying phosphorus concentrate powder |
| CN110872130A (en) * | 2018-08-31 | 2020-03-10 | 贵州芭田生态工程有限公司 | Calcined phosphorite beneficial to leaching and method for leaching calcium and magnesium ions |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU717508A1 (en) * | 1977-04-05 | 1980-02-25 | Восточный научно-исследовательский и проектный институт огнеупорной промышленности | Plant for heat treatment of loose granular material |
| CN1769827A (en) * | 2004-11-03 | 2006-05-10 | 长沙银芒化工科技有限公司 | Combined respectively driving and segmented external heating rotary kiln |
| CN202747773U (en) * | 2012-08-15 | 2013-02-20 | 彭尹华 | Energy-saving ceramic particle rotary kiln |
| CN209085291U (en) * | 2018-08-10 | 2019-07-09 | 贵州芭田生态工程有限公司 | It is a kind of for calcining the rotary kiln of phosphorus ore |
-
2018
- 2018-08-10 CN CN201810910232.9A patent/CN108800921A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU717508A1 (en) * | 1977-04-05 | 1980-02-25 | Восточный научно-исследовательский и проектный институт огнеупорной промышленности | Plant for heat treatment of loose granular material |
| CN1769827A (en) * | 2004-11-03 | 2006-05-10 | 长沙银芒化工科技有限公司 | Combined respectively driving and segmented external heating rotary kiln |
| CN202747773U (en) * | 2012-08-15 | 2013-02-20 | 彭尹华 | Energy-saving ceramic particle rotary kiln |
| CN209085291U (en) * | 2018-08-10 | 2019-07-09 | 贵州芭田生态工程有限公司 | It is a kind of for calcining the rotary kiln of phosphorus ore |
Non-Patent Citations (1)
| Title |
|---|
| 姜煜林: "《水泥热工机械设备》", vol. 1, 中国环境科学出版社, pages: 343 - 344 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110872130A (en) * | 2018-08-31 | 2020-03-10 | 贵州芭田生态工程有限公司 | Calcined phosphorite beneficial to leaching and method for leaching calcium and magnesium ions |
| CN109631605A (en) * | 2019-01-04 | 2019-04-16 | 贵州芭田生态工程有限公司 | A kind of smoke heat energy recovery method of phosphorus ore calcination rotary kiln |
| CN109701344A (en) * | 2019-01-04 | 2019-05-03 | 贵州芭田生态工程有限公司 | A kind of recycling of calcined by rotary kiln flue gas, purification method |
| CN109780856A (en) * | 2019-01-04 | 2019-05-21 | 贵州芭田生态工程有限公司 | A method of calcining phosphorus ore kiln exhaust gas is for drying phosphorus concentrate powder |
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