CN106123585A - A kind of tunnel cave coal feed system - Google Patents
A kind of tunnel cave coal feed system Download PDFInfo
- Publication number
- CN106123585A CN106123585A CN201610701308.8A CN201610701308A CN106123585A CN 106123585 A CN106123585 A CN 106123585A CN 201610701308 A CN201610701308 A CN 201610701308A CN 106123585 A CN106123585 A CN 106123585A
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- Prior art keywords
- coal
- computer
- high pressure
- kiln
- feeder
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Classifications
-
- 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
- F27B9/38—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- 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
- F27B9/38—Arrangements of devices for charging
- F27B2009/382—Charging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a kind of tunnel cave coal feed system, including pulverizer, belt conveyor, hopper, screw(-type) feeder and high pressure positive blower；One end of described belt conveyor is arranged on below the discharging opening of pulverizer, and the other end extends to the top of hopper；The discharging opening of described hopper is connected with the charging aperture of screw(-type) feeder, the first buncher driving its operating it is additionally provided with on screw(-type) feeder, high pressure positive blower is arranged on the lower section of screw(-type) feeder, on the air outlet of high pressure positive blower, ajutage is installed, the discharging opening of screw(-type) feeder is connected with ajutage by feed pipe, and high pressure positive blower is additionally provided with the second adjustable speed fan driving its operating；Described ajutage is connected to the entrance point of air devider, and the port of export of air devider connects multiple coal injection pipe, and the end of coal injection pipe is provided with nozzle, and nozzle is positioned at kiln crown coal feeding hole.This tunnel cave coal feed system can make fire coal more fully burn, and reduces coal-fired usage amount.
Description
Technical field
The present invention relates to tunnel kiln equipment technical field, specifically a kind of tunnel cave coal feed system.
Background technology
The most domestic brick and tile tunnel cave all uses internal combustion sintering technology, adobe internal combustion in practical operation, the most only
Being added to 90-95%, by supplementing a certain amount of outer fuel, such as coal, wooden unit or sawdust etc., these outer fuels pass through kiln crown coal feeding hole
Putting into, with supplementary increase temperature, wherein, outer fire coal is the most frequently used outer fuel.Outer fire coal uses 10mm-mostly at present
The lump coal of 50mm, and fire into section and do not have an oxygenating measure, outer coal-fired put in kiln after, mostly scold on kiln car face, some
Even fall in sand sealing groove, kiln car face be block due to coal, and anoxia, cause coal cinder burning slowly, temperature cannot and
Time be brought up.When burner mentions temperature in observing kiln the most in time, may proceed to again coal, lower floor's coal has not burnt, upper strata
Lower floor's coal is covered again by coal, thus causes a large amount of coal to burn completely, has a lot during kiln discharge in kiln vehicle surface, sand sealing groove
Coal grain, these coal grains or coal cinder are big due to granularity, fail to burn in time, and when kiln discharge, these coal cinders failing to burn in time continue
Blaze up, will result in kiln car temperature and raise, in addition it is also necessary to take the cooling measure of correspondence.In sum, existing tunnel cave combustion
Coal supply respect, exist fire coal cannot clean-burning defect, cause the significant wastage of fuel, it addition, kiln temperature is by burning
Firer's Artificial Control, causes kiln temperature unstable, affects product quality.
Summary of the invention
It is an object of the invention to provide a kind of tunnel cave coal feed system, to solve proposition in above-mentioned background technology
Problem.
For achieving the above object, the present invention provides following technical scheme:
A kind of tunnel cave coal feed system, including pulverizer, belt conveyor, hopper, screw(-type) feeder and high pressure positive blower；Institute
The one end stating belt conveyor is arranged on below the discharging opening of pulverizer, and the other end of belt conveyor extends to the upper of hopper
Side；Described hopper is arranged on the top of screw(-type) feeder, and the discharging opening of hopper is connected with the charging aperture of screw(-type) feeder, spiral shell
It is additionally provided with, on rotation batcher, the first buncher driving its operating；Described high pressure positive blower is arranged under screw(-type) feeder
Side, the air outlet of high pressure positive blower is provided with ajutage, and the discharging opening of screw(-type) feeder is connected with ajutage by feed pipe,
The second adjustable speed fan driving its operating it is additionally provided with on described high pressure positive blower；Described ajutage is connected to the import of air devider
End, the port of export of air devider connects multiple coal injection pipe, and the end of coal injection pipe is provided with nozzle, and nozzle is positioned at kiln crown coal feeding hole
In.
As the further scheme of the present invention: described tunnel cave coal feed system, also include computer PRC controller, electricity
The collection terminal of brain PRC controller is provided with data acquisition line concentration, and the other end of data acquisition line concentration is provided with temperature sensor, and temperature
Sensor is positioned at kiln, and the first buncher and the equal communication of the second adjustable speed fan are connected to computer PRC controller.
As the present invention further scheme: described high pressure positive blower and the second adjustable speed fan are installed on base.
As the present invention further scheme: be also equipped with level detector in described hopper.
As the present invention further scheme: the discharging-material size of described pulverizer is less than 2mm.
As the present invention further scheme: the method for work of described tunnel cave coal feed system, step is as follows:
1) the crushed machine of raw coal is pulverized and is obtained coal dust, and coal dust is delivered in hopper by belt conveyor；
2) temperature sensor obtains kiln temperature data, and the kiln temperature data of acquisition are sent to computer PRC controller；
3) kiln temperature data are processed by computer PRC controller, it is thus achieved that the first buncher and the fortune of the second adjustable speed fan
Line parameter；
4) computer PRC controller controls the second adjustable speed fan operation according to the operational factor of the second adjustable speed fan, and computer PRC controls
Device controls the first buncher according to the operational factor of the first buncher and runs, and the coal dust in hopper is delivered to by screw(-type) feeder
Ajutage, the high-pressure blast that high pressure positive blower produces carries coal dust and is assigned as multiply through air devider, and respectively enters the coal injection pipe of correspondence
In, the high-pressure blast carrying coal dust in coal injection pipe sprays in kiln from kiln crown coal feeding hole through nozzle；
5) step 2 is repeated) to step 4), until tunnel kiln sintering has worked；
6) computer PRC controller controls the first buncher shutdown, and after the first buncher is shut down 3-5 minute, computer PRC is controlled
Device processed controls the second adjustable speed fan and shuts down.
As the present invention further scheme: in step 4), when initial start-up, first computer PRC controller controls
Second adjustable speed fan starts, and high pressure positive blower starts running, and after high pressure positive blower works well, computer PRC controller controls the again
One buncher starts.
Compared with prior art, the invention has the beneficial effects as follows:
1, this tunnel cave coal feed system can improve fired coal combustion effect, makes fire coal more fully burn, is substantially reduced
Coal-fired usage amount, has saved cost；
2, this tunnel cave coal feed system can regulate air output and the amount of delivering coal according to the temperature in kiln, thus controls in kiln
Temperature, makes kiln temperature keep stable, advantageously ensures that the steady quality of product, improve the performance of enterprises；
3, this tunnel cave coal feed system, simple in construction, compact, convenient for installation and maintenance, significantly reduce the work of burner
Slightly, practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of tunnel cave coal feed system.
Fig. 2 is the kiln interior layout schematic diagram of tunnel cave coal feed system.
Fig. 3 is the workflow diagram of tunnel cave coal feed system.
In figure: 1-pulverizer, 2-belt conveyor, 3-hopper, 4-level detector, 5-screw(-type) feeder, 6-the first speed governing electricity
Machine, 7-high pressure positive blower, 8-the second adjustable speed fan, 9-base, 10-ajutage, 11-feed pipe, 12-computer PRC controller, 13-
Coal injection pipe, 14-data acquisition line concentration, 15-nozzle, 16-adobe, 17-kiln car.
Detailed description of the invention
Below in conjunction with detailed description of the invention, technical scheme is described in more detail.
Referring to Fig. 1-3, a kind of tunnel cave coal feed system, including pulverizer 1, belt conveyor 2, hopper 3, spiral
Batcher 5 and high pressure positive blower 7；One end of described belt conveyor 2 is arranged on below the discharging opening of pulverizer 1, belt conveyor 2
The other end extend to the top of hopper 3, raw coal is sent in pulverizer 1, and raw coal is ground into coal dust by pulverizer 1, after pulverizing
Coal dust drops down onto belt conveyor 2 from the discharging opening of pulverizer 1, and is admitted under the drive of belt conveyor 2 in hopper 3,
Depending on the concrete degree of grinding of raw coal is according to practical situation, in the present embodiment, it is preferred that the discharging-material size of described pulverizer 1 is little
In 2mm, thus raw coal is ground into 2mm particles below；Described hopper 3 is arranged on the top of screw(-type) feeder 5, and hopper 3
Discharging opening be connected with the charging aperture of screw(-type) feeder 5, coal dust in hopper 3 enters in screw(-type) feeder 5, screw(-type) feeder
The first buncher 6 driving its operating it is additionally provided with, by regulating the rotating speed of the first buncher 6, it becomes possible to control coal on 5
The feed quantity of powder；Being also equipped with level detector 4 in described hopper 3, the material that can be used in monitoring in hopper 3 by level detector 4 is high
Degree；
Described high pressure positive blower 7 is arranged on the lower section of screw(-type) feeder 5, and the air outlet of high pressure positive blower 7 is provided with ajutage 10, spiral shell
The discharging opening of rotation batcher 5 is connected with ajutage 10 by feed pipe 11, when high pressure positive blower 7 works, and shape in ajutage 10
Becoming high-pressure blast, internal coal dust is delivered to ajutage 10 through feed pipe 11 by screw(-type) feeder 5, and coal dust mixes with high-pressure blast, and
It is sent under the carrying of high-pressure blast, described high pressure positive blower 7 is additionally provided with the second adjustable speed fan 8 driving its operating, by adjusting
Save the rotating speed of the second adjustable speed fan 6, it becomes possible to control air output；Described ajutage 10 is connected to the entrance point of air devider, point wind
The port of export of device connects multiple coal injection pipe 13, and the end of coal injection pipe 13 is provided with nozzle 15, and nozzle 15 is positioned at kiln crown and throws coal
In hole, the high-pressure blast carrying coal dust in ajutage 10 is assigned as multiply by air devider, and respectively enters the coal injection pipe of correspondence
In 13, the high-pressure blast carrying coal dust in coal injection pipe 13 sprays in kiln through nozzle 15 from kiln crown coal feeding hole, for providing combustion in kiln
Coal and air, it is ensured that coal-fired abundant burning；Described high pressure positive blower 7 and the second adjustable speed fan 8 are installed on base 9；
Described tunnel cave coal feed system, also includes computer PRC controller 12, and the collection terminal of computer PRC controller 12 is installed
There are data acquisition line concentration 14, the other end of data acquisition line concentration 14 that temperature sensor is installed, and temperature sensor is positioned at kiln, first
Buncher 6 and the second equal communication of adjustable speed fan 8 are connected to computer PRC controller 12, and temperature sensor is used for obtaining temperature in kiln
Degrees of data, and kiln temperature data are sent to computer PRC controller 12, computer PRC controller 12 is according to kiln temperature data
Control the first buncher 6 and operation of the second adjustable speed fan 8, to control the air output in kiln and the amount of delivering coal, reach to control kiln
The purpose of interior temperature.
The method of work of described tunnel cave coal feed system, step is as follows:
1) raw coal crushed machine 1 is pulverized and is obtained coal dust, and coal dust is delivered in hopper 3 by belt conveyor 2；
2) temperature sensor obtains kiln temperature data, and the kiln temperature data of acquisition are sent to computer PRC controller 12；
3) kiln temperature data are processed by computer PRC controller 12, it is thus achieved that the first buncher 6 and the second adjustable speed fan 8
Operational factor；
4) computer PRC controller 12 controls the second adjustable speed fan 8 according to the operational factor of the second adjustable speed fan 8 and runs, computer PRC
Controller 12 controls the first buncher 6 according to the operational factor of the first buncher 6 and runs, and screw(-type) feeder 5 is by hopper 3
Coal dust deliver to ajutage 10, the high-pressure blast that high pressure positive blower 7 produces carries coal dust and is assigned as multiply through air devider, and respectively enters
In corresponding coal injection pipe 13, the high-pressure blast carrying coal dust in coal injection pipe 13 sprays in kiln from kiln crown coal feeding hole through nozzle 15；
5) step 2 is repeated) to step 4), until tunnel kiln sintering has worked；
6) computer PRC controller 12 controls the first buncher 6 and shuts down, after the first buncher 6 shuts down 3-5 minute, and computer
PRC controller 12 controls the second adjustable speed fan 8 and shuts down.
Wherein, in step 4), when initial start-up, first computer PRC controller 12 controls the second adjustable speed fan 8 and opens
Dynamic, high pressure positive blower 7 starts running, and after high pressure positive blower 7 works well, computer PRC controller 12 controls the first buncher 6 again
Start.
The operation principle of the present invention is: described tunnel cave coal feed system, and raw coal is sent in pulverizer 1, and pulverizer 1 will
Raw coal is ground into coal dust, and the coal dust after pulverizing drops down onto belt conveyor 2 from the discharging opening of pulverizer 1, and at belt conveyor 2
Drive under be admitted in hopper 3.Level detector 4 in hopper 3 can be used in monitoring the coal dust height in hopper 3, when in hopper 3
Coal dust deficiency time, pulverizer 1 and belt conveyor 2 start, pulverized coal conveying in hopper 3, it is ensured that has the coal of abundance in hopper 3
Powder.Coal dust in hopper 3 enters in screw(-type) feeder 5.When high pressure positive blower 7 works, in ajutage 10, form high-pressure blast, spiral
Internal coal dust is delivered to ajutage 10 through discharging opening by batcher 5, and coal dust mixes with high-pressure blast, and quilt under the carrying of high-pressure blast
Delivering to air devider, high-pressure blast is assigned as multiply by air devider, and respectively enters in the coal injection pipe 13 of correspondence, taking in coal injection pipe 13
High-pressure blast with coal dust sprays in kiln through nozzle 15 from kiln crown coal feeding hole, for providing coal-fired and air in kiln, it is ensured that coal-fired
Fully burning.Temperature sensor is used for obtaining kiln temperature data, and kiln temperature data are sent to computer PRC controller
12, computer PRC controller 12 is according to kiln temperature Data Control the first buncher 6 and the operation of the second adjustable speed fan 8, with control
Air output in kiln processed and the amount of delivering coal, reach to control the purpose of kiln temperature.
Why this tunnel cave coal feed system has high burn-off rate, and one is effectively to have played breeze blowing skill
The speciality of art, expands fire coal the most to greatest extent and facilitates fierceness to aoxidize rapidly with the contact area of oxygen in air
Journey.Two is quickly running and rotating by breeze airflow, makes volatile matter gas membrane be rapidly separated fixed carbon, thus accelerates
Carbon burning speed.Three is to make burning oxygen supply more abundant to burning zone secondary oxygen supply, improves the efficiency of combustion of internal combustion, more energy-conservation.
Described tunnel cave coal feed system can improve fired coal combustion effect, makes fire coal more fully burn, significantly
Reduce coal-fired usage amount, save cost；Described tunnel cave coal feed system can regulate according to the temperature in kiln and send
Air quantity and the amount of delivering coal, thus control kiln temperature, make kiln temperature keep stable, advantageously ensure that the steady quality of product, improve enterprise
Industry benefit；Described tunnel cave coal feed system, simple in construction, compact, convenient for installation and maintenance, significantly reduce the labor of burner
Dynamic slight, practical.
Above the better embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art is possessed, it is also possible on the premise of without departing from present inventive concept
Various changes can be made.
Claims (7)
1. a tunnel cave coal feed system, it is characterised in that include pulverizer (1), belt conveyor (2), hopper (3),
Screw(-type) feeder (5) and high pressure positive blower (7)；One end of described belt conveyor (2) is arranged under the discharging opening of pulverizer (1)
Side, the other end of belt conveyor (2) extends to the top of hopper (3)；Described hopper (3) is arranged on screw(-type) feeder (5)
Top, and the discharging opening of hopper (3) is connected with the charging aperture of screw(-type) feeder (5), screw(-type) feeder (5) is additionally provided with and drives
First buncher (6) of its operating dynamic；Described high pressure positive blower (7) is arranged on the lower section of screw(-type) feeder (5), high pressure positive blower
(7) being provided with ajutage (10) on air outlet, the discharging opening of screw(-type) feeder (5) is by feed pipe (11) and ajutage (10)
It is connected, described high pressure positive blower (7) is additionally provided with the second adjustable speed fan (8) driving its operating；Described ajutage (10) is even
Being connected to the entrance point of air devider, the port of export of air devider connects has multiple coal injection pipe (13), the end of coal injection pipe (13) to be provided with
Nozzle (15), and nozzle (15) is positioned at kiln crown coal feeding hole.
Tunnel cave coal feed system the most according to claim 1, it is characterised in that the supply of described tunnel cave fire coal is
System, also includes that computer PRC controller (12), the collection terminal of computer PRC controller (12) are provided with data acquisition line concentration (14), data
The other end of gathering line (14) is provided with temperature sensor, and temperature sensor is positioned at kiln, the first buncher (6) and second
Adjustable speed fan (8) all communications are connected to computer PRC controller (12).
Tunnel cave coal feed system the most according to claim 2, it is characterised in that described high pressure positive blower (7) and second
Adjustable speed fan (8) is installed on base (9).
Tunnel cave coal feed system the most according to claim 3, it is characterised in that described hopper is also equipped with in (3)
Level detector (4).
Tunnel cave coal feed system the most according to claim 4, it is characterised in that the discharging grain of described pulverizer (1)
Degree is less than 2mm.
Tunnel cave coal feed system the most according to claim 5, it is characterised in that described tunnel cave coal feed system
Method of work, step is as follows:
1) the crushed machine of raw coal (1) is pulverized and is obtained coal dust, and coal dust is delivered in hopper (3) by belt conveyor (2)；
2) temperature sensor obtains kiln temperature data, and the kiln temperature data of acquisition are sent to computer PRC controller
(12)；
3) kiln temperature data are processed by computer PRC controller (12), it is thus achieved that the first buncher (6) and the second speed-regulating wind
The operational factor of machine (8)；
4) computer PRC controller (12) controls the second adjustable speed fan (8) operation according to the operational factor of the second adjustable speed fan (8),
Computer PRC controller (12) controls the first buncher (6) according to the operational factor of the first buncher (6) and runs, and spiral is given
Coal dust in hopper (3) is delivered to ajutage (10) by material machine (5), and the high-pressure blast that high pressure positive blower (7) produces carries coal dust through a point wind
Device is assigned as multiply, and respectively enters in the coal injection pipe (13) of correspondence, the high-pressure blast warp carrying coal dust in coal injection pipe (13)
Nozzle (15) sprays in kiln from kiln crown coal feeding hole；
5) step 2 is repeated) to step 4), until tunnel kiln sintering has worked；
6) computer PRC controller (12) controls the first buncher (6) shutdown, when the first buncher (6) is shut down 3-5 minute
After, computer PRC controller (12) controls the second adjustable speed fan (8) and shuts down.
Tunnel cave coal feed system the most according to claim 6, it is characterised in that in step 4), when initial start-up,
Computer PRC controller (12) first controls the second adjustable speed fan (8) and starts, and high pressure positive blower (7) starts running, and works as high pressure positive blower
(7), after working well, computer PRC controller (12) controls the first buncher (6) again and starts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701308.8A CN106123585A (en) | 2016-08-22 | 2016-08-22 | A kind of tunnel cave coal feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701308.8A CN106123585A (en) | 2016-08-22 | 2016-08-22 | A kind of tunnel cave coal feed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106123585A true CN106123585A (en) | 2016-11-16 |
Family
ID=57279601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610701308.8A Pending CN106123585A (en) | 2016-08-22 | 2016-08-22 | A kind of tunnel cave coal feed system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106123585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931142A (en) * | 2018-05-25 | 2018-12-04 | 永济市海军新型墙材有限公司 | A kind of energy-saving process method and device of energy-saving sintering kiln |
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| CN205940120U (en) * | 2016-08-22 | 2017-02-08 | 重庆市大龙窑炉制造有限公司 | Coal -fired feed system of tunnel cave |
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| JP2012072974A (en) * | 2010-09-29 | 2012-04-12 | Ube Machinery Corporation Ltd | Fuel supply method of cement kiln |
| CN102358705A (en) * | 2011-08-17 | 2012-02-22 | 范峪铭 | Process for producing sintered ceramsite by using solid waste materials, and system thereof |
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| CN108931142A (en) * | 2018-05-25 | 2018-12-04 | 永济市海军新型墙材有限公司 | A kind of energy-saving process method and device of energy-saving sintering kiln |
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Application publication date: 20161116 |
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