CN104456530A - Briquette and briquette combustion method - Google Patents
Briquette and briquette combustion method Download PDFInfo
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- CN104456530A CN104456530A CN201410465197.6A CN201410465197A CN104456530A CN 104456530 A CN104456530 A CN 104456530A CN 201410465197 A CN201410465197 A CN 201410465197A CN 104456530 A CN104456530 A CN 104456530A
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Abstract
The invention provides a coal and phyteral composite briquette which can accelerate ignition velocity and combustion speed, and a method for burning the briquette, and improve the additional value of blending combustion based on the coal and the phyteral composite briquette and the coal. The coal and phyteral composite briquette (100) is formed by blending phyteral formed by power of straws, wheat straws, cornstalks, wood, sugarcane bagasse, etc, desulfurizing agents like Ca(OH)2 and CaCO3 with coal powder. The coal and phyteral composite briquette (100) has a thin-wall burr part (b), a bottom surface (a) arranged on a lower side of the burr part (b) and is composed of a flat surface, and a projecting part (c) arranged on an upper side of the burr part (b) and at least has a part projecting upwards. Because the briquette has a larger specific surface area and the length of the burr parts (b) around the periphery of the briquette by each briquette volume is quite long, the ignition velocity and the combustion speed are fast.
Description
Technical field
The present invention relates to a kind of in coal dust and the admixture of phyteral powder that formed by the powder of straw, straw, cornstalk, timber and bagasse etc., the coal of desulfurizing agent or the burning binders etc. such as fusion lime stone, white lime, phyteral composite solid fuel briquet and the method that this briquet is burnt.
Background technology
Coal, phyteral composite solid fuel briquet (hereinafter referred to as coal, phyteral compound briquet or be only called briquet) tool have the following advantages, that is, better than ignitability, flammability with coal facies, and, by fusion lime stone (CaCO
3), white lime (Ca (OH)
2) etc. desulfurizing agent, the coal dust in smoke evacuation, SO can be reduced
2.
Following content is recorded in patent document 1, namely, raw meal to be supplied between relative two rollers of roll surface to some gaps, interval, manufacture the device (cuber) of the briquet in biconvex shape by the concavity portion arranged on the outer peripheral face of two rollers respectively and manufacture the method for this briquet, wherein, described raw meal is, fusion is carried out by coal dust with relative to the plant macromolecule organic powder that this coal dust weight ratio is 5 ~ 45%, and the powder of the desulfurizing agent powder of 1 ~ 2 weight equivalent of flammability sulphur in fusion and coal.
In addition, in patent document 2, to describe in coal dust fusion wood powder, desulfurizing agent use and be shaped as briquet with the mutually isostructural roller of patent document 1 by cuber.And, describe when this briquet being burnt in moving-bed type combustion furnace (adding coal burning boiler), to the content that the size of briquet limits.
At first technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2003-129074 publication
Patent document 2: Japanese Unexamined Patent Publication 11-123598 publication
Summary of the invention
The problem that invention will solve
Coal, phyteral compound briquet are supplied on the fire bars as grate and below fire bars, carry combustion air thus the fire bars formula burning furnace fuel of burning.In fire bars formula combustion furnace, there is the moving-bed type combustion furnace of fixed-bed type combustion furnace that fire bars fixes and fire bars movement.In industrial circle, mostly use moving-bed type combustion furnace, by making fire bars from the structure of fuel supply side movement to the inside nearby, fuel is placed in fire bars and catches fire while movement, burn, fires greyly to discharge from the mobile terminal of fire bars.Each combustion furnace is used in the heater etc. of stove, boiler or oil.
The coal burnt in fire bars formula combustion furnace, is generally ground into the size of about below 40mm.In moving-bed type combustion furnace, be supplied to fuel in stove mainly through from the radiations heat energy of stove inwall and combustion flame burning of fighting.In fixed-bed type combustion furnace, on fuel bed aflame on fire bars, supply fuel, and make it catch fire, burn.
The ignition time of fuel ratio (fixed carbon/volatile matter) the larger coal obtained divided by volatile matter by the fixed carbon of coal or the lower coal of the more caloric value of ash content, so-called low flammability coal is longer and burning velocity is slower, therefore be not over yet in the fire bars mobile terminal burning arriving moving-bed type combustion furnace, and discharge from the mobile terminal portion of fire bars, therefore fire in ash the residual carbon composition that burns to increase, the utilization ratio step-down of fuel.In addition, increase combustion air amount from fire bars bottom sometimes to improve burning velocity, thus the temperature in stove reduces, boiler efficiency declines.
In addition, the briquet of the existing type be shaped by the cuber in the above-mentioned concavity portion that marks on two rollers and is compared with difform coal cinder because of pulverized complicated shape, and the surface area of per unit volume, i.e. specific area are less.Therefore, the radiations heat energy of the per unit volume be subject in combustion furnace or the shape less with the Exposure of combustion air is become.In the briquet burning that is raw material with low flammability coal dust, because the burning residual carbon composition fired in ash increases thus the efficiency of combustion of fuel reduces or increases combustion air to accelerate burning velocity and cause boiler efficiency step-down.
The present invention is the invention completed in view of this actual conditions, its object is to provide a kind of possess can improve ignition speed, the briquet of shape of burning velocity and briquet combustion method.
For solving the means of problem
Briquet of the present invention is the phyteral powder and Ca (OH) that fusion is formed by the powder of straw, straw, cornstalk, timber and bagasse etc. in coal dust
2and CaCO
3deng the formed body of desulfurizing agent, the feature of described briquet is to possess: the burr portion of thin-walled; Bottom surface sections, it is arranged at the lower side in this burr portion and is formed by tabular surface; Convex shaped part, it is arranged at the upper side in this burr portion and at least has the part protruded upward.
At this, " at least having the convex shaped part of the part protruded upward " not only comprises the shape of the so-called semicircle column type only formed by protuberance, also comprises and not only has the shape that protuberance also has recess or planar portions, such as, comprise wave mode shape.
In addition, be preferably, described briquet is gone back blended adhesive after phyteral powder described in fusion and described desulfurizing agent and is formed in described coal dust.Particularly be preferably, blended adhesive when being difficult to be shaped by means of only compression stress in the kind according to coal or phyteral.
In addition, be preferably, the maximum gauge of described briquet is set as more than 3mm.
In addition, the feature of briquet combustion method of the present invention is, by described briquet and coal to make it burn in the substance use of the ratio fusion specified to fire bars formula combustion furnace.
And, the feature of briquet manufacturing installation of the present invention is, by in coal dust at least the raw material of fusion phyteral powder and desulfurizing agent to supply between concavity portion roller and planarized roller, and these two rollers are rotated mutually round about, thus output is formed with convex shaped part in side, the briquet of smooth shape is become at opposite side, wherein, described concavity portion roller is formed with the concavity portion as briquet master mold in peripheral curve, and described planarized roller separates gap and and peripheral curve opposed with this concavity portion roller is flattened.
Invention effect
As mentioned above, briquet of the present invention is coal, the phyteral compound briquet of bottom surface planar-shaped, and top is configured to convex, and the bottom surface being positioned at the bottom in burr portion is flattened, and is configured to compared with the coal of specific area and existing type, phyteral compound briquet large.
Thus, on the fire bars being supplied to moving-bed type combustion furnace, the area of receiver radiation heat becomes large therefore ignition speed and accelerates, and increases therefore increased flame speeds with the contact area of combustion air.Thus, compared with the coal of existing type, phyteral compound briquet, ignitability and flammability increase substantially.
And, in briquet of the present invention, be formed thinner by the section in the burr portion of full out heating, therefore easily catch fire, thus play function as the starting point of catching fire.And flash volume is than also comparatively large, and therefore ignition speed is significantly accelerated compared with existing type.
According to above this feature, though when as coal dust using low flammability coal dust as raw material, also can accelerate ignition speed, burning velocity significantly, burn residual carbon composition therefore, it is possible to reduce in combustion ash, improve the utilization ratio of fuel.In addition, significantly can also reduce the supply of the excessive combustion air amount from fire bars bottom, therefore, it is possible to improve combustion furnace efficiency, improve boiler efficiency, the oily efficiency of heating surface.
And, when the shape in the concavity portion by concavity portion roller and size are set to roughly the same with the cuber of existing type, the thickness of the briquet of bottom surface of the present invention planar-shaped is such as about 60% of the briquet of existing type, therefore make the compression stress between the roller of cuber good to the transmission in briquet deep, thus the higher briquet of density can be obtained.In addition, even if lower also can the acquisition of forming pressure can the harder briquet of resistance to handling, therefore shaping cost reduces.
It should be noted that, improve the briquet of the present invention of ignition speed, burning velocity, be not limited to the situation of separately burning, when burn with coal fusion, also play and promote the catching fire of coal, burn, the effect of the burning residual carbon composition in ash is fired in minimizing.That is, briquet of the present invention can utilize as coal combustion promoter coming, thus can improve its surcharge.
In addition, in briquet combustion method of the present invention, by briquet and coal to make it burn in the substance use of the ratio fusion specified to fire bars formula combustion furnace, using improving ignitability, combustible briquet plays function as making the burning of coal conflagration promote material.
Accompanying drawing explanation
Fig. 1 is the figure (Fig. 1 (a) is aerial view, and Fig. 1 (b) is left view, and Fig. 1 (c) is front view, and Fig. 1 (d) is upward view) of the briquet represented involved by embodiments of the present invention.
Fig. 2 is the concept map of the cuber represented as the briquet manufacturing installation involved by embodiments of the present invention.
Fig. 3 is the aerial view (Fig. 3 (a) be pillow-type, Fig. 3 (b) be almond type) of the briquet representing conventional example.
Fig. 4 is the flow chart representing the flow process that the fusion of moving-bed type combustion furnace supplies.
Fig. 5 is the flow chart representing the flow process that moving-bed type combustion furnace supplies separately.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described in detail.
First, Fig. 1 is used to be described the coal of present embodiment, phyteral compound briquet, and to use the briquette manufacturing apparatus (hereinafter referred to as cuber) of Fig. 2 to present embodiment to be described.
Briquet 100 involved by present embodiment is formed as following formed body, and possesses: the burr portion b of thin-walled; Bottom surface a, it is arranged at the lower side of this burr portion b and is formed by tabular surface; Convex shaped part c, it is arranged at the upper side of this burr portion b and at least has the part protruded upward, wherein, described formed body is the phyteral powder and Ca (OH) that fusion is formed by the powder of straw, straw, cornstalk, timber and bagasse etc. in coal dust
2and CaCO
3formed Deng desulfurizing agent.
In addition, the cuber 110 of present embodiment possess in peripheral curve, be formed with the concavity portion 2 as briquet master mold concavity portion roller 1a, separate the planarized roller 1b that the gap peripheral curve opposed with this concavity portion roller 1a be flattened, these two rollers 1a, 1b (roll shaft 4a, 4b) are configured to rotate round about mutually.
Be configured to, when supplying briquet raw material to the gap of these two rollers 1a, 1b, export the briquet 100 in this shape shown in Fig. 1.
It should be noted that, briquet of the present invention can be manufactured by various briquet manufacturing installation, but hereinafter, the briquet 100 produced the cuber 110 by present embodiment is described.
As shown in Fig. 1 ((a), (b), (c), (d)), bottom surface a is formed by the outer peripheral face of planarized roller 1b, thus is formed as smooth.Burr portion b is formed by the gap of concavity portion roller 1a and planarized roller 1b, and the protuberance c of the upper side of burr portion b is formed by the concavity portion (hereinafter also referred to as briquet master mold) 2 of concavity portion roller 1a.That is, the shape of the briquet 100 of present embodiment is formed as bottom surface flat type.
As shown in Fig. 1 (c), the shape of protuberance c changes according to the shape in the concavity portion 2 of the concavity portion roller 1a of cuber 110.The shape in concavity portion 2 changes according to the condition of the diameter of the granularity of raw material or each roller 1a, 1b etc., and is designed to transmit compression stress to raw material well thus obtain the higher briquet 100 of density.With therewith, the shape of the aerial view (a) of Fig. 1, left view (b), front view (c) and upward view (d) also changes, but to make bottom surface a be formed as smooth this point by the planarized outer peripheral face of planarized roller 1b be all identical.
On the planarized outer peripheral face of planarized roller 1b, in order to make raw material to entering well between roller, can suitably implement to set up stria parallel or angled with planarized roll shaft 4a, but the bottom surface a of briquet 100 this concept smooth is all identical.
When the thickness of burr portion b is (following, becoming burr thick) in the transport, storage of briquet 100, burr portion b can breaking and Dusting when crossing thin, therefore in order to prevent this situation, be preferably, the gap of concavity portion roller 1a and planarized roller 1b is regulated, thus guarantees thick more than the burr of 2mm.On the other hand, when the height of burr thickness rate protuberance c is thick, briquet 100 links, and in transportation afterwards, briquet 100 is by breakage, is therefore preferably, and the height of described burr thickness rate protuberance c is thin, is more preferably, is set to less than 50% of the height of protuberance c.
The size of briquet 100 is set to the size that can not fall from the fire bars gap of fire bars formula combustion furnace, generally the fire bars gap of stove is that 1mm arrives a few mm, and therefore maximum gauge is set to more than the 3mm size of 3mm square-mesh screen (not through), is more preferably maximum gauge and is set to more than 5mm (not through the size of 5mm square-mesh screen).
On the other hand, the existing type shown in above-mentioned document 1, document 2, in coal, fusion phyteral and desulfurizing agent and being shaped produces coal the cuber of brick, and two the roller outer peripheral faces rotated round about mutually mark the concavity portion of briquet master mold.The rotation of roller is synchronous by geared system etc. in the just in time relative mode (unswerving mode) in concavity portion each other, and rotates with identical speed round about mutually.The aerial view of above-mentioned document 1, briquet 100 involved by the conventional example shown in document 2 is illustrated in Fig. 3 (a), (b).The figure of Fig. 3 (a) to be the figure of the example representing so-called pillow-type, Fig. 3 (b) be example representing so-called almond type.
In the cuber 110 involved by present embodiment, the outer peripheral face of a roller 1a has marked concavity portion 2, and the outer peripheral face of another roller 1b is smooth, therefore without the need to making two roller 1a, 1b synchronous rotaries.
It is as shown in table 1 below when the coal of the bottom surface planar-shaped involved by present embodiment, phyteral compound briquet 100 are compared with the coal of existing type, the specific area of phyteral compound briquet.The concavity portion of both concavity portion rollers is all set to degree of depth 5mm, width 20mm, length 30mm and be all set to identical shape.The specific area of the briquet 100 of present embodiment is 6.24, and the specific area of the briquet of conventional example is 4.16.That is, the briquet 100 of present embodiment is about 1.5 times of the briquet of conventional example.Even if make concavity portion shape carry out various change, the specific area of briquet of the present invention is all identical than large this situation of the specific area of the briquet of conventional example in either case.
Table 1
| The shape of briquet | Specific area |
| Coal of the present invention, phyteral compound briquet | 6.24 |
| The coal of conventional example, phyteral compound briquet | 4.16 |
Be supplied to briquet 100 in moving-bed type combustion furnace mainly through being heated from the furnace wall of surrounding and flame radiation heat thus catch fire, but the burr portion b be positioned on the side face of briquet 100 is neighbouring (more specifically, near from protuberance c to the position of the region transfers of burr portion b) thinning, the part therefore near this burr portion b is reached ignition point by full out heating.As shown in Fig. 1 (c), known: angulation α 2 is little each other than the outer surface of the protuberance of the briquet of the conventional example shown in Fig. 3 (b) for maximum angle α 1 formed by the outer surface of the bottom surface a in the briquet 100 of present embodiment and protuberance c, thus the cross section near burr portion is thinning compared with conventional example.
In addition, as shown in table 2 below when the briquet 100 involved by present embodiment is compared with the flash volume ratio of the briquet involved by conventional example.At this, flash volume is than referring to the value obtained divided by the volume of briquet 100 by the girth of burr portion b.The concavity portion of both concavity portion rollers is all set to degree of depth 5mm, width 20mm, length 30mm and be set to mutually the same shape.The flash volume ratio of the briquet 100 of present embodiment is 5.06, and the flash volume ratio of the briquet of conventional example is 2.60.That is, the briquet 100 of present embodiment is about 2 times of the briquet of conventional example.Even if make concavity portion shape carry out various change, the flash volume of briquet of the present invention is all identical than the flash volume of briquet being greater than conventional example than this situation in either case.
Table 2
| The shape of briquet | Flash volume ratio |
| Coal of the present invention, phyteral compound briquet | 5.06 |
| The coal of conventional example, phyteral compound briquet | 2.60 |
It should be noted that, although the raw material of the briquet 100 involved by present embodiment phyteral powder and desulfurizing agent by fusion in coal dust is formed, be more preferably, use the raw material of fusion burning binder etc. when briquet intensity deficiency.
This raw material drops into from the raw material hopper 5 of the cuber 110 of the present embodiment shown in Fig. 2, supplies in the gap of two rollers 1a, 1b rotating round about mutually via helical member 3.The size etc. in the gap of the size of these rollers 1a, 1b, rotating speed and roller 1a, 1b, can according to purposes, requirement and suitably changing.Such as, two rollers 1a, 1b can be set to size different from each other.
Below, use embodiment compares with conventional example (comparative example), and the present invention will be described further.
[embodiment 1]
Following raw material is fed in cuber 110, described raw material is with the wood powder of mass ratio 20% below fusion 2mm in the bituminous coal powder of below 2mm, and fusion is equivalent to the white lime (Ca (OH) of the amount of 2 relative to sulphur (S) the mol ratio Ca/S in coal
2).
In cuber 110, on the outer peripheral face of concavity portion roller 1a, marking has the concavity portion 2 of degree of depth 6mm, width 20mm, length 25mm at predetermined intervals, and the outer peripheral face of planarized roller 1b is set as smooth, and roller interval (burr are thick) is formed as 2.5mm.The briquet 100 produced by this cuber 110 is set to the briquet of the present embodiment.
On the other hand, when the making of conventional example, use the raw material identical with the situation of the present embodiment, and on the outer peripheral face of each roller of two rollers of cuber at predetermined intervals marking have the concavity portion identical with the concavity portion of the present embodiment, and roller interval (burr are thick) is set as 2.5mm.
The ignition time of the briquet of the present embodiment so produced and conventional example is compared.
The briquet 100 of the present embodiment and conventional example is directed in the muffle furnace maintaining 600 DEG C respectively, and is measured to the time till catching fire (time to there is flame).
Consequently, the ignition time of the briquet 100 of the present embodiment is 36 seconds, and the ignition time of the briquet of conventional example is 58 seconds.
Therefore, the ignitability of the briquet 100 of known the present embodiment is excellent.
[embodiment 2]
Make the present embodiment and the briquet involved by conventional example in the same manner as example 1.
Make the briquet of the present embodiment and the conventional example so produced burn in fixed-bed type combustion furnace respectively, and measure the burning residual carbon composition in combustion ash.
Consequently, the mass ratio of the burning residual carbon composition in the combustion ash of the briquet 100 of the present embodiment is about 6%, and the mass ratio of the burning residual carbon composition in the combustion ash of the briquet of conventional example is about 15%.
[embodiment 3]
Make the present embodiment and the briquet involved by conventional example in the same manner as example 1.
Make the briquet of the present embodiment and the conventional example so produced burn in moving-bed type combustion furnace respectively, and measure the burning residual carbon composition in combustion ash.
Consequently, the mass ratio of the burning residual carbon composition in the combustion ash of the briquet 100 of the present embodiment is about 8%, and the mass ratio of the burning residual carbon composition in the combustion ash of the briquet of conventional example is about 17%.
As shown in embodiment 2, embodiment 3, the briquet 100 of known the present embodiment is compared with the briquet of conventional example, and flammability is excellent and the efficiency of combustion of fuel is higher.
[embodiment 4]
Fig. 4 represents the briquet 100 of the present embodiment with coal fusion and the moving-bed type combustion furnace fusion making it burn supplies the figure of flow process.It should be noted that, the briquet 100 of the present embodiment is identical with the briquet shown in embodiment 1.The briquet 100 of the present embodiment is supplied to blender 31 relative to the quality of coal with the ratio of regulation by briquet weight feed machine 7 from briquet hopper 6.
On the other hand, coal supplies the quality deal of regulation to blender 31 by coal weight feed machine 9 from coal hopper 8.Blended fuel from blender 31 is supplied to fire bars 11 from moving-bed type combustion furnace supply port 10.Blended fuel to be placed on fire bars 11 and to move in moving-bed type combustion furnace 12, catches fire, burn and discharge as combustion ash at the place of mobile terminal portion of fire bars 11 in moving-bed type combustion furnace 12.
When relative to coal with briquet 100 of mass ratio 70% fusion the present embodiment, burning residual carbon composition in combustion ash is about 10%, do not have too big-difference with the result of the embodiment 3 of the situation of the briquet 100 of the present embodiment that only burns, therefore the briquet 100 of known the present embodiment promotes material as coal combustion and plays function.
It should be noted that, from coal weight feed machine 9, briquet weight feed machine 7 to blender 31 or between the combustion furnace supply port 10 of blender 31 and moving-bed type combustion furnace, be provided with transport, the storage equipment such as conveying device, slideway, hopper.In addition, when carrying out fusion by the stirring of transport, raw material in storage equipment, fusion phenomenon, blender 31 can not be set and in the first-class supply of conveying device of being carried together with coal by the briquet 100 of the present embodiment and the briquet 100 of blended coal and the present embodiment, afterwards, put in moving-bed type combustion furnace 12 from combustion furnace supply port 10.
[embodiment 5]
The present embodiment is the method for briquet 100 fusion of coal and the present embodiment being burnt, but it is different from the method for embodiment 4, it is the briquet 100 supplying the good the present embodiment of ignitability, flammability on the coal seam be supplied on fire bars, and made briquet 100 of the present invention burn earlier by radiations heat energy, promote the method for the burning of coal of lower floor thus.
That is, represent that Fig. 5 of the present embodiment represents the figure briquet 100 of the present embodiment and the coal moving-bed type combustion furnace be separately supplied on fire bars 19 being supplied separately flow process.It should be noted that, the briquet 100 of the present embodiment is identical with the briquet shown in embodiment 1.
Coal is delivered to combustion furnace coal supply port 17 from coal hopper 13 by coal supplying machine 14, and is supplied on fire bars 19 with constant thickness from here.
The briquet 100 of the present embodiment is supplied to combustion furnace briquet supply port 18 from briquet hopper 15 by briquet supplying machine 16, and is supplied on the coal seam that is placed in fire bars 19 from combustion furnace briquet supply port 18.By the movement of fire bars 19, in moving-bed type combustion furnace 20, first, briquet 100 involved by the present embodiment on upper strata catches fire, burns, thus facilitate the catching fire of the coal of lower floor, burn and promote burning thus, afterwards, discharge as combustion ash at the place of mobile terminal portion of fire bars 11.Burn according to this fusion, because briquet 100 genetic horizon of the present embodiment burns, therefore increase the promotion power of catching fire to coal, improve the burning velocity of fuel entirety, and decrease the burning residual carbon composition in combustion ash.
Industrial applicibility
Coal reserve among fossil fuel is maximum, and extensively buries in all over the world.But the poor cheap low-quality charcoal of flammability is more, this low-quality charcoal ignitability is poor, burning velocity is comparatively slow, and, in combustion ash, remain more unburned carbon contained composition therefore cause boiler efficiency to reduce.In addition, above-mentioned coal, particularly low-quality charcoal can produce coal smoke and environment be worsened, but by making ignitability, flammability good bottom surface of the present invention planar-shaped briquet and coal fusion burn, thus burning of coal efficiency can be improved.And, the utilization of cheap low-quality charcoal can be realized, popularize.
Symbol description
A briquet bottom surface
B burr portion
C convex shaped part
Maximum angle formed by α 1 bottom surface and protuberance outer surface tangent line
The tangent line formed maximum angle each other of α 2 protuberance outer surface
1a concavity portion roller
The planarized roller of 1b
2 concavity portions
3 helical members
4a concavity portion roll shaft
The planarized roll shaft of 4b
5 raw material hoppers
6,15 briquet hoppers
7 briquet weight feed machines
8,13 coal hopper
9 coal weight feed machines
10 combustion furnace supply ports
11,19 fire bars
12,20 moving-bed type combustion furnaces
14 coal supplying machines
16 briquet supplying machines
17 combustion furnace coal supply ports
18 combustion furnace briquet supply ports
Claims (4)
1. a briquet, it is phyteral powder and Ca (OH) that in coal dust, fusion is formed by the powder of straw, straw, cornstalk, timber and bagasse etc.
2and CaCO
3deng the formed body of desulfurizing agent, the feature of described briquet is,
Possess: the burr portion of thin-walled; Bottom surface, it is arranged at the lower side in this burr portion and is formed by tabular surface; Convex shaped part, it is arranged at the upper side in this burr portion and at least has the part protruded upward.
2. briquet according to claim 1, is characterized in that,
Described briquet phyteral powder described in fusion and described desulfurizing agent and blended adhesive and formed in described coal dust.
3. briquet according to claim 1 and 2, is characterized in that,
The maximum gauge of described briquet is set as more than 3mm.
4. a briquet combustion method, is characterized in that,
To fire bars formula boiler, it is made to burn with the substance use of the ratio fusion of regulation in the briquet described in any one in claims 1 to 3 and coal.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-208616 | 2013-09-14 | ||
| JP2013208616 | 2013-09-14 | ||
| JP2014-176028 | 2014-08-29 | ||
| JP2014176028A JP2015078347A (en) | 2013-09-14 | 2014-08-29 | Briquette and briquette combustion method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104456530A true CN104456530A (en) | 2015-03-25 |
Family
ID=52903016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410465197.6A Pending CN104456530A (en) | 2013-09-14 | 2014-09-12 | Briquette and briquette combustion method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104456530A (en) |
Citations (7)
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|---|---|---|---|---|
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| CN2347753Y (en) * | 1998-03-10 | 1999-11-10 | 赵秀清 | Honeycomb briquet |
| CN1309166A (en) * | 2001-01-11 | 2001-08-22 | 昆明理工大学 | Process for preparing composite biomass briquettes |
| CN201225756Y (en) * | 2008-04-15 | 2009-04-22 | 山西大学 | Spherical briquette boiler |
| CN101985575A (en) * | 2010-11-05 | 2011-03-16 | 华南理工大学 | Biomass moulded coal and preparation method thereof |
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2014
- 2014-09-12 CN CN201410465197.6A patent/CN104456530A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5863792A (en) * | 1981-10-13 | 1983-04-15 | Matsushita Electric Ind Co Ltd | Solid fuel |
| CN2240528Y (en) * | 1995-09-21 | 1996-11-20 | 雷加良 | Concave non-round hole shaped-coal |
| CN1171432A (en) * | 1996-07-23 | 1998-01-28 | 华东交通大学应用化学研究所 | Special fuel for buffet of passenger train and its preparing process |
| CN2347753Y (en) * | 1998-03-10 | 1999-11-10 | 赵秀清 | Honeycomb briquet |
| CN1309166A (en) * | 2001-01-11 | 2001-08-22 | 昆明理工大学 | Process for preparing composite biomass briquettes |
| CN201225756Y (en) * | 2008-04-15 | 2009-04-22 | 山西大学 | Spherical briquette boiler |
| CN101985575A (en) * | 2010-11-05 | 2011-03-16 | 华南理工大学 | Biomass moulded coal and preparation method thereof |
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