CN104501201A - Device for quantitatively allocating pulverized coal for combustors of industrial furnace - Google Patents
Device for quantitatively allocating pulverized coal for combustors of industrial furnace Download PDFInfo
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- CN104501201A CN104501201A CN201410775419.4A CN201410775419A CN104501201A CN 104501201 A CN104501201 A CN 104501201A CN 201410775419 A CN201410775419 A CN 201410775419A CN 104501201 A CN104501201 A CN 104501201A
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- coal dust
- feed disk
- distributing device
- industrial stoves
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Abstract
The invention discloses a device for quantitatively allocating pulverized coal for combustors of an industrial furnace. The device comprises a shell, a pulverized coal inlet, a fluidized air inlet, a stirrer and quantitative pulverized coal allocating units, wherein the pulverized coal inlet is formed in the upper part of the shell, the fluidized air inlet is formed in the lower part of the shell, the stirrer is arranged in the shell, the quantitative pulverized coal allocating units are arranged in the shell, and the number of the quantitative pulverized coal allocating units is matched with that of the combustors of the industrial furnace. By utilizing the device disclosed by the invention, the amount of the pulverized coal which is conveyed to the combustors of the industrial furnace can be effectively controlled and metered, the system structure is simple, the design is reasonable, and accurate control on heat input for each combustor can realized.
Description
Technical field
The present invention relates to a kind of industrial kiln auxiliary equipment, particularly a kind of Industrial Stoves burner coal dust quantitative distributing device.
Background technology
At present, the coal dust quantitative distributing device general principle that limekiln adopts adopts unit pulverized-coal system, some arms are distributed into after a main pipeline, by the conveying wind of high pressure, coal dust is transported to each burner, in order to ensure that the coal dust amount of each arm is consistent, the method of usual employing ensures that the loine pressure of each arm is fallen to be consistent, as caliber, pipe range etc. keep identical.But the position that burner is arranged sometimes cannot ensure that the length of each arm is identical, there is the situation that part pipe range is long, part pipe range is short, at this moment will to be difficult to guarantee identical for the coal dust amount of each branch road.In addition, the coal dust amount of each arm does not arrange independent measure device usually, and can only be estimated roughly the coal dust amount of each branch road by the coal dust amount of house steward, under unequal situation appears in each branch road coal dust amount, the exact numerical values recited of its coal dust amount cannot be learnt.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Industrial Stoves burner coal dust quantitative distributing device, the technical scheme that it adopts is: a kind of Industrial Stoves burner coal dust quantitative distributing device, comprise: housing, be placed in housing upper coal powder entrance, be placed in the fluidized wind entrance of lower housing portion, be placed in the agitator of enclosure interior, also comprise the rationed unit of coal dust matched with Industrial Stoves number of burners being placed in enclosure interior.
The present invention further technical characteristic is:
Described enclosure interior is provided with material level detector.
The rationed unit of described coal dust comprise with coal dust reception hole feed disk, drive the disc motor of feed disk rotational, and with feed disk eccentric setting and soft seal defeated, the air supply duct that are connected.
Reception hole on described feed disk is evenly distributed on feed disk in an annular region, the region that this annular region covers for defeated during feed disk rotational, air supply duct.
Also coupling assembling is provided with between described feed disk and defeated, air supply duct, this coupling assembling comprises: sebific duct, drag ring, clip and spring, wherein one end of sebific duct connects defeated, air supply duct, and the other end connects drag ring, sebific duct is fixedly connected with by clip with defeated, air supply duct, drag ring directly contacts with feed disk, and one end of spring connects drag ring, and the other end is connected on defeated, air supply duct.
Reception hole on described feed disk is evenly distributed on feed disk in an annular region, the region that this annular region covers for drag ring during feed disk rotational.
Reception hole on described feed disk is tapered, above large little below.
The invention has the beneficial effects as follows:
A kind of Industrial Stoves burner of the present invention coal dust quantitative distributing device is by agitator and fluidisation wind action, coal dust is made to form density stabilized fluidisation state, simultaneously, the quantity of the rationed unit of coal dust can be set according to the quantity of Industrial Stoves burner, ensure the corresponding burner of the rationed unit of each coal dust, thus the adjustment of the coal dust to single burner can be realized according to the rotating speed of feed disk in the rationed unit of coal dust.Experiment records the density of powder fluidized state, and determines the relational expression of feed disc rotation speed and coal dust amount, and the metering of coal dust amount can be determined by this relational expression.Structure of the present invention is simple, reasonable in design, can realize the accurate control to each burner input heat.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is the structural representation of the rationed unit of coal dust in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described:
Embodiment one
The Industrial Stoves burner coal dust quantitative distributing device of the present embodiment as shown in Figure 1, comprise: housing 1, be placed in housing 1 top coal powder entrance 2, be placed in the fluidized wind entrance 3 of housing 1 bottom, be placed in the agitator 4 of housing 1 inside, also comprise the rationed unit 5 of coal dust matched with Industrial Stoves number of burners being placed in housing 1 inside.In order to ensure the normal operation of coal dust quantitative distributing device, in the present embodiment, described enclosure interior is provided with material level detector 6, namely high charge level detector 601, low material level detector 602, low material level detector 603 are set respectively, stop when high charge level detector 601 detects breeze material position in coal dust quantitative distributing device reinforced; Prepare reinforced when controlling level drops to the alarm prompting of low material level detector 602 place, when controlling level drops to low material level detector 603 place, coal dust quantitative distributing device will quit work.When coal dust amount is in controlling level 601 to 602 scope, the coal dust in coal dust quantitative distributing device can ensure the even fluidizing state needed for conveying, and corresponding coal powder metering also can ensure accuracy.
The rationed unit 5 of described coal dust as shown in Figure 2, comprises with the feed disk 501 of coal dust reception hole, the disc motor 502 that drives feed disk 501 to rotate, and with feed disk 501 eccentric setting and soft seal defeated, the air supply duct 503 that are connected.Reception hole on described feed disk 501 be evenly distributed on feed disk 501 be taken in disk rotational time defeated, air supply duct 503 annular region that covers in.The coal dust of fluidisation state enters the reception hole of feed disk 501 in real time, when in the aerated area that reception hole turns to defeated, air supply duct 503, coal dust is blown from bottom to top and delivers to Industrial Stoves burner, the amount of the coal dust supplied for burner is controlled by the rotating speed changing feed disk 501, the rotating speed of feed disk 501 is faster, and the unit interval is that the coal dust amount of burner supply is larger.In the embodiment shown in Figure 2, also coupling assembling is provided with between described feed disk 501 and defeated, air supply duct 503, this coupling assembling comprises: sebific duct 504, drag ring 505, clip 506 and spring 507, wherein one end of sebific duct 504 connects defeated, air supply duct 503, the other end connects drag ring 505, sebific duct 504 is fixedly connected with by clip 506 with defeated, air supply duct 503, drag ring 505 directly contacts with feed disk 501, one end of spring 507 connects drag ring 505, and the other end is connected on defeated, air supply duct 503.Sebific duct 504 is convenient to regulate installation length, and spring 507 can guarantee again combining closely and soft seal between drag ring 505 and feed disk 501.For the ease of the storage of fluidisation state coal dust, the reception hole on described feed disk 501 is tapered, above large little below, and be evenly distributed on feed disk 501 be taken in disk rotational time drag ring 505 annular region that covers in.
A kind of Industrial Stoves burner of the present invention coal dust quantitative distributing device is by agitator 4 and fluidisation wind action, coal dust is made to form density stabilized fluidisation state, simultaneously, the quantity of the rationed unit 5 of coal dust can be set according to the quantity of Industrial Stoves burner, ensure the corresponding burner of the rationed unit 5 of each coal dust, thus the adjustment of the coal dust to single burner can be realized according to the rotating speed of feed disk 501 in the rationed unit of coal dust 5.Experiment records the density of powder fluidized state, and determines the relational expression of feed disk 501 rotating speed and coal dust amount, and the metering of coal dust amount can be determined by this relational expression.Structure of the present invention is simple, reasonable in design, can realize the accurate control to each burner input heat.
Above-mentioned is only description to specific embodiment, and coverage of the present invention is not limited to above-described embodiment, on the contrary, and all technical schemes that the present invention falls in fact within the scope of the claims under containing all instructions on literal or in equivalents.Protection scope of the present invention is as the criterion with claims.
Claims (7)
1. an Industrial Stoves burner coal dust quantitative distributing device, comprise: housing, be placed in housing upper coal powder entrance, be placed in the fluidized wind entrance of lower housing portion, be placed in the agitator of enclosure interior, it is characterized in that: also comprise the rationed unit of coal dust matched with Industrial Stoves number of burners being placed in enclosure interior.
2. Industrial Stoves burner coal dust quantitative distributing device according to claim 1, is characterized in that: described enclosure interior is provided with material level detector.
3. Industrial Stoves burner coal dust quantitative distributing device according to claim 1, it is characterized in that: the rationed unit of described coal dust comprise with coal dust reception hole feed disk, drive the disc motor of feed disk rotational, and with feed disk eccentric setting and soft seal defeated, the air supply duct that are connected.
4. Industrial Stoves burner coal dust quantitative distributing device according to claim 3, it is characterized in that: the reception hole on described feed disk is evenly distributed on feed disk in an annular region, the region that this annular region covers for defeated during feed disk rotational, air supply duct.
5. Industrial Stoves burner coal dust quantitative distributing device according to claim 3, it is characterized in that: between described feed disk and defeated, air supply duct, be also provided with coupling assembling, this coupling assembling comprises: sebific duct, drag ring, clip and spring, wherein one end of sebific duct connects defeated, air supply duct, the other end connects drag ring, sebific duct is fixedly connected with by clip with defeated, air supply duct, drag ring directly contacts with feed disk, one end of spring connects drag ring, and the other end is connected on defeated, air supply duct.
6. Industrial Stoves burner coal dust quantitative distributing device according to claim 5, it is characterized in that: the reception hole on described feed disk is evenly distributed on feed disk in an annular region, the region that this annular region covers for drag ring during feed disk rotational.
7. the Industrial Stoves burner coal dust quantitative distributing device according to claim 3 or 4 or 5 or 6, is characterized in that: the reception hole on described feed disk is tapered, above large little below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775419.4A CN104501201B (en) | 2014-12-15 | 2014-12-15 | Industrial Stoves burner coal dust quantitative distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775419.4A CN104501201B (en) | 2014-12-15 | 2014-12-15 | Industrial Stoves burner coal dust quantitative distributing device |
Publications (2)
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| CN104501201A true CN104501201A (en) | 2015-04-08 |
| CN104501201B CN104501201B (en) | 2017-06-16 |
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| CN201410775419.4A Active CN104501201B (en) | 2014-12-15 | 2014-12-15 | Industrial Stoves burner coal dust quantitative distributing device |
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| Publication number | Publication date |
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| CN104501201B (en) | 2017-06-16 |
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