CN110143773A - Ardealite calcination system - Google Patents
Ardealite calcination system Download PDFInfo
- Publication number
- CN110143773A CN110143773A CN201910460497.8A CN201910460497A CN110143773A CN 110143773 A CN110143773 A CN 110143773A CN 201910460497 A CN201910460497 A CN 201910460497A CN 110143773 A CN110143773 A CN 110143773A
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- China
- Prior art keywords
- deduster
- furnace
- air
- air hose
- preheating furnace
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- C04B11/036—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln, i.e. to obtain beta-hemihydrate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
A kind of ardealite calcination system belongs to ardealite calcining field, including calcining furnace, flame furnace, rear deduster to preheating furnace air hose, preceding deduster feed back pipe, preceding deduster, preheating furnace, preheating furnace air-exhausting duct, preceding deduster is to rear deduster air hose, rear deduster, reduction furnace, deduster reserves air hose afterwards, expansion chamber, expansion chamber to preceding deduster air hose, air-introduced machine；With the characteristics of compact-sized, layout is simple, energy high recycling rate.
Description
Technical field
The invention belongs to ardealites to calcine field, in particular to a kind of for being converted into building gypsum after calcining ardealite
Calcination treating system.
Background technique
Ardealite is that one of phosphorous chemical industry enterprise production process industry byproduct can not due to containing Multiple components
It directly applies in construction, needs to convert semi-hydrated gypsum by calcining for the main component dihydrate gypsum in ardealite,
It can be used for construction；In the calcination process of ardealite, most original be using steamer, frying pan etc equipment into
Row, low efficiency, the unstable quality of semi-hydrated gypsum powder produced, yield is small, can not adapt to large-scale industrial production；Wave
Take the energy, will cause secondary pollution；With the progress of ardealite calcining technology, calciner also improves therewith, uses at present
Be mostly that calcining furnace is calcined, since calcining furnace is also to be located ardealite respectively using individual feature kiln mostly
Reason, energy utilization rate is low, and link is more, and occupied ground area is big, and the different layouts and connection type of ventilation shaft also determine
The secondary use of hot wind and the influence to calcination efficiency.
Summary of the invention
For drawbacks described above existing for existing ardealite calciner, the present invention proposes a kind of ardealite being succinctly laid out
Calcination system, it is characterised in that: including calcining furnace, flame furnace, rear deduster to preheating furnace air hose, preceding deduster feed back pipe is preceding
Deduster, preheating furnace, preheating furnace air-exhausting duct, preceding deduster to rear deduster air hose, rear deduster, reduction furnace, rear deduster are pre-
Stay air hose, expansion chamber, expansion chamber to preceding deduster air hose, air-introduced machine；The calcining furnace is mounted in calcining furnace installation pedestal,
For Double-drum rotary formula detour calcining furnace；The flame furnace is mounted on inner cylinder opening one end of calcining furnace, and by bocca with forge
The inner cylinder for burning furnace is corresponding；The flame furnace is coal powder injection furnace or combustion gas flame furnace；The rear deduster is to preheating furnace wind
Pipe is mounted between rear deduster and preheating furnace, and one end is connect with the air outlet of rear deduster, the air inlet of the other end and preheating furnace
Mouth connection；Before the preceding deduster feed back pipe is mounted between deduster and calcining furnace, one end goes out with preceding collector for duster hopper
Material mouth connection, the other end connect with calcining furnace front end packet header and are connected to packet header inner cavity；The preceding deduster removes before being mounted on
Be four cyclone dust collectors in dirt device mounting bracket, air inlet connect with expansion chamber to preceding deduster air hose, air outlet with preceding remove
Dirt device is connected to rear deduster air hose, and the Material collecting box for harvesting discharge port of preceding deduster is connect with preceding deduster feed back pipe；The preheating
Furnace is mounted in preheating furnace installation pedestal, positioned at the oblique upper of calcining furnace；The air inlet of the preheating furnace is arrived with rear deduster
The connection of preheating furnace air hose, air outlet are connect with preheating furnace air-exhausting duct；The preheating furnace air-exhausting duct is mounted on the outlet air of preheating furnace
At mouthful, the air outlet of one end and preheating furnace is connected, and the other end leads to atmosphere discharge；The preceding deduster is to rear deduster air hose
Be mounted between preceding deduster and rear deduster, one end is connect with the air outlet of preceding deduster, the other end and rear deduster into
Air port connection；The rear deduster is mounted in rear deduster mounting bracket, positioned at the oblique upper of calcining furnace, relative to preheating
The position of furnace is located at the other side of calcining furnace；The air inlet and preceding deduster of the rear deduster connect to rear deduster air hose
It connects, air outlet is connect with rear deduster to preheating furnace air hose；The reduction furnace is mounted in reduction furnace mounting bracket, positioned at forging
Furnace side is burnt, and is located at rear deduster same side；The rear deduster reserves air hose and is mounted on rear deduster air outlet one end,
It is connected to rear deduster air outlet；The rear deduster is reserved and is equipped with shut-off valve on air hose, can close and remove after opening
Dirt device reserves the on-off of air hose；The expansion chamber is mounted on the packet header of calcining furnace front end, be thin wall cavity body, lower end with forge
It burns the front end packet header connection of furnace and is connected to packet header inside, the upper end is connect with expansion chamber to preceding deduster air hose；Described is heavy
Drop room is mounted between expansion chamber and preceding deduster to preceding deduster air hose, and one end is connect with top of settling chamber air outlet, another
End is connect with the air inlet of preceding deduster；The air-introduced machine is mounted on preceding deduster to rear deduster air hose and rear deduster
Onto preheating furnace air hose.
Further, the preceding deduster feed back pipe is thin metallic tubd.
Further, the air inlet of the preheating furnace is located at discharge port one end of preheating furnace.
Further, the preheating furnace is punching tube type preheating furnace.
Further, the distance of the preheating furnace to calcining furnace is no more than 10 meters.
Further, the preceding deduster to rear deduster air hose be thin metallic tubd.
Further, the rear deduster is more bag filters or water deduster.
Further, distance of the reduction furnace apart from calcining furnace is no more than 20 meters.
Further, the height of the expansion chamber is not less than 3 meters.
Further, device for reducing dust is provided in the expansion chamber, the device for reducing dust is taper or spiral shape
Striker plate.
The directions such as front, rear, left and right above-mentioned are to face view direction.
Beneficial effect
The beneficial effects of the present invention are, can each ardealite calciner of rational deployment, accomplish compact-sized and meet phosphorus
The requirement of gypsum calcining technique, rationally utilizes waste heat, simplifies hot wind currency structure.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention
1. calcining furnace, 2. flame furnaces, deduster is to preheating furnace air hose after 3., deduster feed back pipe before 4., and deduster before 5., 6. is pre-
Hot stove, 7. preheating furnace air-exhausting ducts, 8. preceding dedusters to rear deduster air hose, deduster after 9., 10. reduction furnaces, deduster after 11.
Reserved air hose, 12. expansion chambers, 13. expansion chambers to preceding deduster air hose.
Specific embodiment
Technical solution in order to further illustrate the present invention, now in conjunction with Detailed description of the invention a specific embodiment of the invention, such as
Fig. 1, the Double-drum rotary formula plaster calcining furnace for selecting the industry general in this example install the calcining furnace 1 as calcining furnace 1
In calcining furnace installation pedestal；The combustion gas flame furnace for selecting the industry general in this example is as flame furnace 2, by the flame furnace
2 are mounted on inner cylinder opening one end of calcining furnace 1, and bocca is corresponding with the inner cylinder of calcining furnace 1；Steel Thin-Wall is selected in this example
Pipe as rear deduster to preheating furnace air hose 3, by the rear deduster to preheating furnace air hose 3 be mounted on rear deduster 9 with it is pre-
Between hot stove 6, the air outlet of one end and rear deduster 9 is welded to connect, and the air inlet of the other end and preheating furnace 6 is welded to connect, and
One or more air-introduced machine is installed in the middle part of pipeline；Sheet metal edge rolling is selected to be fabricated to tubulose and weld seam crossing close in this example
Envelope, as preceding deduster feed back pipe 4, before the preceding deduster feed back pipe 4 is mounted between deduster 5 and calcining furnace 1, one
End is welded to connect with preceding collector for duster hopper discharge port, the other end and calcining furnace front end packet header be welded to connect and with the packet header inner cavity
Connection；The preceding deduster 5 is mounted on by four cyclone dust collectors for selecting the industry general in this example as preceding deduster 5
In preceding deduster mounting bracket, air inlet is connect with expansion chamber to preceding deduster air hose 13, after air outlet is arrived with preceding deduster
Deduster air hose 8 connects, and the Material collecting box for harvesting discharge port of preceding deduster 5 is connect with preceding deduster feed back pipe 3；The industry is selected in this example
The preheating furnace 6 is mounted in preheating furnace installation pedestal, is located at as preheating furnace 6 by the rotary preheating furnace of general monotubular
The oblique upper of calcining furnace 1, the outer edge of preheating furnace 6 are convenient for preheating furnace 6 to 1-2 meters of outline edge distance of calcining furnace in this way
The charging to discharge to calcining furnace 1 reduces long distance delivery and intermediate conveying equipment, improves efficiency of heating- utilization apart from short；It will
The air inlet of the preheating furnace 6 is connect with rear deduster to preheating furnace air hose 3, and air outlet is connect with preheating furnace air-exhausting duct 7；This
The preheating furnace air-exhausting duct 7 is mounted on pre- by the thin-walled air-exhausting duct for selecting the industry general in example as preheating furnace air-exhausting duct 7
At the air outlet of hot stove 6, one end is connect with the air outlet of preheating furnace 6, and the other end leads to atmosphere discharge；Steel Thin-Wall is selected in this example
Pipe is as preceding deduster to rear deduster air hose 8, deduster 5 before the preceding deduster to rear deduster air hose 8 is mounted on
Between rear deduster 9, the air outlet of one end and preceding deduster 5 is welded to connect, and the air inlet of the other end and rear deduster 9 welds
It connects, and one or more air-introduced machine is installed among this pipeline；The more bag filters for selecting the industry general in this example are made
For rear deduster 9, the rear deduster 9 is mounted in rear deduster mounting bracket, positioned at the oblique upper of calcining furnace 1, phase
It is located at the other side of calcining furnace 1 for the position of preheating furnace 6, that is, preheating furnace 6 and rear deduster 9 are located at calcining furnace 1
Two sides；The air inlet of the rear deduster 9 is welded to connect with preceding deduster to rear deduster air hose 8, rear deduster 9
Air outlet is connect with rear deduster to preheating furnace air hose 3；The rotary reduction furnace conduct of monotubular for selecting the industry general in this example
The reduction furnace 10 is mounted in reduction furnace mounting bracket by reduction furnace 10, is located at 1 side of calcining furnace, and be located at rear dedusting
9 same side of device, the spacing apart from calcining furnace 1 are 10 meters；The thin-wall steel tube for selecting the industry general in this example is as rear deduster
The rear deduster is reserved air outlet one end that air hose 11 is mounted on rear deduster 9, with rear deduster 9 by reserved air hose 11
Air outlet connection；And reserved in the rear deduster and shut-off valve is installed on air hose 11, deduster after capable of closing and opening
The on-off of reserved air hose 11, the spare outlet air for rear deduster 9 are connect with other equipment such as reduction furnace 10；It is selected in this example
The general structure type of the industry is welded into prismatic cavity body, 4 meters of height, section maximum gauge 1.8 using sheet metal bending
Rice, as expansion chamber 12, the expansion chamber 12 is mounted on 1 front end packet header of calcining furnace, closed with the preceding packet header of calcining furnace 1
It is welded to connect, lower end connect with the front end packet header of calcining furnace 1 and is connected to packet header inside, the upper end and expansion chamber to preceding dedusting
Device air hose 13 connects, and multiple inclinations and staggered striker plate are arranged to accelerate the rapid subsidence of ardealite dust in inner wall；This
It selects thin-wall steel tube as expansion chamber to preceding deduster air hose 13 in example, the expansion chamber is installed to preceding deduster air hose 13
Between expansion chamber 12 and preceding deduster 5, one end and 12 top outlet inlet of expansion chamber are welded to connect, the other end and preceding deduster 5
Air inlet be welded to connect；This completes implementations of the invention.
In application, the flame that flame furnace 2 sprays and hot wind are blown into the inner cavity of calcining furnace 1 by air blower, after circulation, from
The lower end of expansion chamber 12 enters 12 inner cavity of expansion chamber, since hot wind is accompanied by phosphogypsum powder, in expansion chamber 12, due to expansion chamber
12 height, phosphogypsum powder can settle back into calcining furnace, simultaneously because being provided with striker plate in expansion chamber 12, block phosphorus stone
The rising of cream powder accelerates the sedimentation of phosphogypsum powder；Hot wind passes through expansion chamber to preceding deduster wind from the air outlet of expansion chamber 12
Before pipe 13 enters in deduster 5, the Dust Capacity that contains of hot wind at this time is just reduced, by (the preceding dedusting of four cyclone dust collectors
Device 5) heavy-duty, the content of the phosphogypsum powder in hot wind is further quickly reduced, the phosphogypsum powder of deposition passes through preceding dedusting
Device feed back pipe 4 re-enters into calcining furnace 1, and is transported to the external of calcining furnace 1 by the discharge port of calcining furnace 1 and supplies lower road work
Sequence uses；Hot wind after preceding 5 dedusting of deduster by preceding deduster deduster 9 after deduster air hose 8 enters after, by
In rear deduster 9 using more bag filters, the phosphogypsum powder in hot wind can be eliminated substantially, more pure hot wind from
The air outlet of deduster 9 is admitted to preheating furnace 6 to preheating furnace air hose 3 by rear deduster afterwards, using the heat of hot wind, increases just
The volatilization of the ardealite free water of beginning saves energy consumption when calcining, and then hot wind passes through in advance from the air outlet of preheating furnace 6
Hot stove air-exhausting duct 7 is discharged into atmosphere；It is connected to if desired, reserving air hose 11 using rear deduster with the equipment of hot wind is needed, energy
The waste heat for enough making full use of calcining furnace 1 to generate；The air-introduced machine of installation in the duct increases the flow velocity and pressure of hot wind, is hot wind
Power is provided by deduster, has pipeline apart from short, high-efficient, the features such as hot wind utilization rate is high.
Claims (9)
1. a kind of ardealite calcination system, it is characterised in that: including calcining furnace, flame furnace, rear deduster is preceding to preheating furnace air hose
Deduster feed back pipe, preceding deduster, preheating furnace, preheating furnace air-exhausting duct, preceding deduster to rear deduster air hose, rear deduster, also
Former furnace, rear deduster reserve air hose, expansion chamber, expansion chamber to preceding deduster air hose, air-introduced machine；The calcining furnace, which is mounted on, to be forged
It burns in furnace installation pedestal, is Double-drum rotary formula detour calcining furnace；The flame furnace is mounted on inner cylinder opening one end of calcining furnace,
And it is bocca is corresponding with the inner cylinder of calcining furnace；The flame furnace is coal powder injection furnace or combustion gas flame furnace；It is described rear to remove
Dirt device is mounted between rear deduster and preheating furnace to preheating furnace air hose, and one end is connect with the air outlet of rear deduster, the other end
It is connect with the air inlet of preheating furnace；Before the preceding deduster feed back pipe is mounted between deduster and calcining furnace, one end is with before
The connection of collector for duster hopper discharge port, the other end connect with calcining furnace front end packet header and are connected to packet header inner cavity；It is described preceding to remove
It is four cyclone dust collectors before dirt device is mounted in deduster mounting bracket, air inlet and expansion chamber connect to preceding deduster air hose
It connects, air outlet is connect with preceding deduster to rear deduster air hose, the Material collecting box for harvesting discharge port of preceding deduster and preceding deduster feed back pipe
Connection；The preheating furnace is mounted in preheating furnace installation pedestal, positioned at the oblique upper of calcining furnace；The air inlet of the preheating furnace
Mouth is connect with rear deduster to preheating furnace air hose, and air outlet is connect with preheating furnace air-exhausting duct；The preheating furnace air-exhausting duct installation
At the air outlet of preheating furnace, the air outlet of one end and preheating furnace is connected, and the other end leads to atmosphere discharge；The preceding deduster
It is mounted between preceding deduster and rear deduster to rear deduster air hose, one end is connect with the air outlet of preceding deduster, the other end
It is connect with the air inlet of rear deduster；The rear deduster is mounted in rear deduster mounting bracket, positioned at the oblique of calcining furnace
Top is located at the other side of calcining furnace relative to the position of preheating furnace；The air inlet of the rear deduster is arrived with preceding deduster
Deduster air hose connects afterwards, and air outlet is connect with rear deduster to preheating furnace air hose；The reduction furnace is mounted on reduction furnace peace
It fills on bracket, is located at calcining furnace side, and be located at rear deduster same side；The rear deduster is reserved after air hose is mounted on and is removed
Dirt device air outlet one end, is connected to rear deduster air outlet；The rear deduster is reserved and is equipped with shut-off valve on air hose, can
Deduster reserves the on-off of air hose after closing and opening；The expansion chamber is mounted on the packet header of calcining furnace front end, is that thin-walled is empty
Cavity, lower end are connected to the connection of the front end packet header of calcining furnace and with packet header inside, the upper end and expansion chamber to preceding deduster wind
Pipe connection；The expansion chamber is mounted between expansion chamber and preceding deduster to preceding deduster air hose, one end and top of settling chamber
Air outlet connection, the other end are connect with the air inlet of preceding deduster；The air-introduced machine is mounted on preceding deduster to rear deduster
On air hose and on rear deduster to preheating furnace air hose.
2. a kind of ardealite calcination system according to claim 1, it is characterised in that: preceding deduster feed back pipe is
Thin metallic tubd.
3. a kind of ardealite calcination system according to claim 1, it is characterised in that: the preheating furnace into
Air port is located at discharge port one end of preheating furnace.
4. a kind of ardealite calcination system according to claim 1, it is characterised in that: the preheating furnace is to wear
Heart tube type preheating furnace.
5. a kind of ardealite calcination system according to claim 1, it is characterised in that: the preheating furnace is to forging
The distance for burning furnace is no more than 10 meters.
6. a kind of ardealite calcination system according to claim 1, it is characterised in that: the preceding deduster arrives
Deduster air hose is thin metallic tubd afterwards.
7. a kind of ardealite calcination system according to claim 1, it is characterised in that: the rear deduster is
More bag filters.
8. a kind of ardealite calcination system according to claim 1, it is characterised in that: the reduction furnace distance
The distance of calcining furnace is no more than 20 meters.
9. a kind of ardealite calcination system according to claim 1, it is characterised in that: the height of the expansion chamber
Degree is not less than 3 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460497.8A CN110143773A (en) | 2019-05-30 | 2019-05-30 | Ardealite calcination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460497.8A CN110143773A (en) | 2019-05-30 | 2019-05-30 | Ardealite calcination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110143773A true CN110143773A (en) | 2019-08-20 |
Family
ID=67593667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910460497.8A Pending CN110143773A (en) | 2019-05-30 | 2019-05-30 | Ardealite calcination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110143773A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836605A (en) * | 2019-11-21 | 2020-02-25 | 江苏新达石英有限公司 | Calcining device for quartz sand purification and using method thereof |
| CN111548036A (en) * | 2020-05-18 | 2020-08-18 | 郑州三迪建筑科技有限公司 | Method for utilizing waste heat generated by calcining phosphogypsum |
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| CN110836605A (en) * | 2019-11-21 | 2020-02-25 | 江苏新达石英有限公司 | Calcining device for quartz sand purification and using method thereof |
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Application publication date: 20190820 |