JPH0680974A - Production of composite solid fuel composed of coal and vegetable matter - Google Patents
Production of composite solid fuel composed of coal and vegetable matterInfo
- Publication number
- JPH0680974A JPH0680974A JP23485392A JP23485392A JPH0680974A JP H0680974 A JPH0680974 A JP H0680974A JP 23485392 A JP23485392 A JP 23485392A JP 23485392 A JP23485392 A JP 23485392A JP H0680974 A JPH0680974 A JP H0680974A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- solid fuel
- composite solid
- weight
- vegetable matter
- Prior art date
- 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.)
- Withdrawn
Links
- 239000003245 coal Substances 0.000 title claims abstract description 36
- 239000004449 solid propellant Substances 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 235000013311 vegetables Nutrition 0.000 title abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 33
- 238000010298 pulverizing process Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000010304 firing Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 11
- 239000002023 wood Substances 0.000 description 8
- 238000000748 compression moulding Methods 0.000 description 7
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 4
- 241000018646 Pinus brutia Species 0.000 description 4
- 235000011613 Pinus brutia Nutrition 0.000 description 4
- 241000609240 Ambelania acida Species 0.000 description 3
- 239000010905 bagasse Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004484 Briquette Substances 0.000 description 2
- 241000218645 Cedrus Species 0.000 description 2
- 241000218691 Cupressaceae Species 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009837 dry grinding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000002802 bituminous coal Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000003476 subbituminous coal Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、石炭を乾燥粉砕した石
炭粉末に植物質を乾燥粉砕した粉末を混合し、この混合
物をロールプレスにより圧縮成形して複合固形燃料を得
る、石炭と植物質との複合固形燃料の製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to coal and plant matter obtained by mixing coal powder obtained by dry-milling coal with powder obtained by dry-milling plant matter, and compression-molding the mixture with a roll press to obtain a composite solid fuel. And a method for producing a composite solid fuel.
【０００２】[0002]
【従来の技術】従来から石炭粉末に木材、バガス等の植
物質粉末を最大量２５重量％までの範囲で混合し、更に
粘結剤を添加して高圧力で固形状に圧縮成形した石炭と
植物質との複合固形燃料（以下複合固形燃料と称する）
は、着火性、燃焼性に優れ、かつ煙の発生が少ないこと
から用いられている。2. Description of the Related Art Conventionally, coal powder obtained by mixing plant powder such as wood and bagasse in a maximum amount of 25% by weight with coal powder, and further adding a binder and compression-molding it into a solid state at high pressure. Composite solid fuel with plant material (hereinafter referred to as composite solid fuel)
Is used because it has excellent ignitability and combustibility, and produces little smoke.
【０００３】複合固形燃料の製造方法は、図１に概略を
示すように、石炭と、木材及びバガス等からなる植物質
とを各々乾燥、粉砕して数ｍｍ以下に粉末調整した原料
に、炭種に応じて更に粘結剤を添加混合し、ロール外周
面に固形燃料の母型となるポケットが形成された互に対
向する一対のロールからなるブリケットマシーンと称す
るロールプレスによって圧縮成形することによってなさ
れる。As shown schematically in FIG. 1, a method for producing a composite solid fuel is as follows. Coal and plant matter such as wood and bagasse are dried and crushed, respectively. Depending on the species, a binder is further added and mixed, and compression molding is carried out by a roll press called a briquette machine consisting of a pair of rolls facing each other in which a pocket serving as a mold for solid fuel is formed on the outer peripheral surface of the roll. Done.
【０００４】ロールプレスによる圧縮成形方法は、一般
に上方からスクリューの回転によって原料を下方に対向
配設されたロール間に供給することによってなされ、ス
クリューの回転数の増減によって原料の供給量が変わ
り、ロール間での圧縮力が変化する。即ちスクリューの
回転数を上げることで圧縮力が高くなり、逆にスクリュ
ーの回転数を下げることで圧縮力を低くすることができ
る。The compression molding method using a roll press is generally carried out by supplying a raw material from above between rolls arranged facing each other by the rotation of the screw, and the supply amount of the raw material changes depending on the increase or decrease in the rotation speed of the screw. The compression force between rolls changes. That is, the compression force can be increased by increasing the rotation speed of the screw, and can be decreased by decreasing the rotation speed of the screw.
【０００５】この複合固形燃料は、製造工場から家庭、
工場等のストーブやボイラ等に供給するまでの搬送過程
での衝撃等では破壊しない圧壊強度が要求され、かつ燃
焼の際に、着火温度の低い植物質粉末の燃焼による２０
０〜４００℃の低温域で石炭から発生する揮発分を燃焼
させてばい煙の発生を防ぎ、燃焼を良好にするためには
植物質粉末が石炭粉末間に均一に分散し、密着する必要
がある。This composite solid fuel is manufactured from a manufacturing plant to a household,
Crushing strength is required so that it will not be destroyed by impact in the transportation process until it is supplied to the stove or boiler of a factory, etc.
In order to prevent the generation of soot and smoke by burning the volatile matter generated from coal in the low temperature range of 0 to 400 ° C, it is necessary to uniformly disperse the vegetable powder between the coal powders and to adhere them in order to improve the combustion. .
【０００６】またこのような複合固形燃料は、褐炭、亜
瀝青炭、瀝青炭等の炭種にかかわらず広範囲の石炭を原
料とすることができ、特に低品質炭を利用した場合クリ
ーン化の効率が大であり、植物質原料には廃木材、バガ
スなどの有効利用が可能であることから利用が期待でき
る。Further, such a composite solid fuel can use a wide range of coal as a raw material regardless of the type of coal such as brown coal, sub-bituminous coal, and bituminous coal, and particularly when low-quality coal is used, the efficiency of cleaning is high. Therefore, waste wood, bagasse, etc. can be effectively used as a plant-derived raw material, so that it can be expected to be used.
【０００７】[0007]
【発明が解決しようとする課題】原料となる石炭は、採
掘され、工場に搬入された状態では一搬に５〜２０重量
％の付着水分を有し、原料を圧縮成形する際、粉末表面
が水で覆われ、粉末相互間の密着が妨げられることから
強固な成形物が得られない。このため石炭表面に付着し
た水分を乾燥除去する必要があり、ドラム型、流動床型
等の乾燥装置による絶乾状態に乾燥させるには多くの消
費動力及び作業時間が必要となる等生産効率上好ましく
なく、かつ表面が活性化されており、絶乾状態に近くな
ると強い酸化反応による発火の危険がある。また植物質
粉末の原料となる杉、松、桧、から松等の木材は伐採時
には５０〜６０重量％の水分を含み、長時間空気中に放
置されたものでも２０〜４０重量％程度含んでいる。こ
のため圧縮成形時植物質粉末中に包蔵されている水分が
絞り出されて石炭粉末との密着が防げられ、強固な複合
固形燃料を得る妨げとなる等の不具合を有する。Coal used as a raw material has 5-20% by weight of adhering water in a single state when it is mined and brought into a factory, and when the raw material is compression-molded, the powder surface is Since it is covered with water and the adhesion between the powders is hindered, a strong molded product cannot be obtained. For this reason, it is necessary to dry and remove the water adhering to the surface of the coal, and a lot of power consumption and working time are required to dry it to an absolutely dry state with a drum type, fluidized bed type, etc. dryer. There is a danger of ignition due to strong oxidation reaction when it is unfavorable and the surface is activated and it becomes almost dry. Further, the wood such as cedar, pine, cypress, and pine, which is the raw material of the vegetable powder, contains 50 to 60% by weight of water at the time of cutting, and about 20 to 40% by weight even if left in the air for a long time. There is. Therefore, during compression molding, the water contained in the vegetable powder is squeezed out to prevent adhesion with the coal powder, which prevents the production of a strong composite solid fuel.
【０００８】従って本発明の目的は、生産効率の向上が
図れ、かつ安全で高強度の複合固形燃料が得られる複合
固形燃料の製造方法を提供することにある。[0008] Therefore, an object of the present invention is to provide a method for producing a composite solid fuel, which is capable of improving the production efficiency, and which is safe and has high strength.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成する本発
明による複合固形燃料の製造方法は、原料となる石炭を
乾燥粉砕した石炭粉末に植物質を乾燥粉砕した植物粉末
を最大量２５重量％までの範囲で混合し、この混合物を
ロールプレスでロール支持圧を略８ｔ／ｃｍ以下に設定
して圧縮成形する複合固形燃料の製造方法において、原
料となる石炭を付着水分が１〜２重量％にまで乾燥し、
かつ植物質をその含水量が１５重量％以下に乾燥するも
のである。 具体的に説明すると、原料となる石炭の付
着水分が１〜２重量％程度になるよう石炭をドラム型や
流動床型等の乾燥装置によって乾燥させる。この乾燥
は、付着水分が１〜２重量％程度であることから、従来
の絶乾状態までの乾燥に対して、大幅な消費動力の軽減
が図れ、かつ作業時間の短縮化が得られ生産効率の向上
が期待できる。また付着水分が１〜２重量％有する状態
であることから発火の危険から回避され、安全性の向上
が確保される。A method for producing a composite solid fuel according to the present invention, which achieves the above object, comprises a maximum amount of 25% by weight of a plant powder obtained by dry-pulverizing a plant material on a coal powder obtained by dry-pulverizing coal as a raw material. In a method for producing a composite solid fuel in which the mixture is mixed in a range of up to and the roll support pressure is set to about 8 t / cm or less by a roll press, the raw material coal has a water content of 1 to 2% by weight. Dry to
In addition, the plant material is dried to a water content of 15% by weight or less. More specifically, the coal, which is the raw material, is dried by a dryer such as a drum type or a fluidized bed type so that the adhering water content of the coal becomes about 1 to 2% by weight. In this drying, the attached water content is about 1 to 2% by weight, so that the power consumption can be greatly reduced and the working time can be shortened compared with the conventional drying up to the absolutely dry state. Can be expected to improve. Further, since the adhered water content is in the range of 1 to 2% by weight, the danger of ignition is avoided and the improvement of safety is ensured.
【００１０】このように付着水分が１〜２重量％に乾燥
された石炭は、ハンマーミル、ケージミル等の粉砕機に
より篩目０．２５ｍｍで篩通過量が８０％より大になる
よう粉砕され、付着水分が１〜２重量％の石炭粉末とな
る。The coal thus dried to a water content of 1 to 2% by weight is crushed by a crusher such as a hammer mill or a cage mill so that the sieve passage amount is more than 80% with a sieve mesh of 0.25 mm. The coal powder has a water content of 1 to 2% by weight.
【００１１】一方、植物質粉末の原料となる杉、松、
桧、から松等の木材は、伐採後長時間空気中に放置さ
れ、２０〜４０重量％水分を含んだ木材となり、この木
材を乾燥装置により、含水量が１５重量％以下になるよ
う乾燥させる。この乾燥は比較的大なる残留含水量であ
っても許容されることから、消費動力及び作業時間は小
なるもので可能である。On the other hand, cedar, pine, which is a raw material of vegetable powder,
Wood such as Japanese cypress and pine tree is left in the air for a long time after felling to become wood containing 20 to 40% by weight of water, and this wood is dried by a dryer so that the water content is 15% by weight or less. . Since this drying is allowed even with a relatively large residual water content, power consumption and working time can be reduced.
【００１２】乾燥された木材等は、ハンマーミル、ピン
ミル等の衝撃粉砕機により篩目２ｍｍを通過する程度に
粉砕され、含水量が１５重量％以下の植物質粉末とな
る。The dried wood or the like is crushed by an impact crusher such as a hammer mill or a pin mill to such an extent that it can pass through a sieve mesh of 2 mm to become a vegetable powder having a water content of 15% by weight or less.
【００１３】これら石炭粉末及び植物質粉末は、石炭粉
末に植物質粉末を最大量２５重量％までの範囲で混合
し、この混合された原料に更に脱硫剤及び粘結剤として
消石灰を５重量％、糖蜜１０重量％を添加して混合す
る。These coal powders and vegetable powders are prepared by mixing coal powders with a maximum amount of 25% by weight of vegetable powder, and adding 5% by weight of slaked lime as a desulfurizing agent and a binder to the mixed raw materials. , Add 10% by weight molasses and mix.
【００１４】次に、この混合物をブリケットの母型とな
るポケットを有する一対の対向するロールからなるロー
ルプレスで圧縮成形して固形化する。圧縮成形時のロー
ル支持圧、即ちロール軸方向の全支持圧力を前記母型と
なるポケットが彫ってあるロール面の軸方向の巾（有効
ロール巾）で除した値（ロール支持圧＝ロール全支持圧
力／ロール巾）を略８ｔ／ｃｍ以下に設定する。Next, the mixture is compression-molded and solidified by a roll press consisting of a pair of opposed rolls each having a pocket serving as a briquette master. A value obtained by dividing the roll supporting pressure at the time of compression molding, that is, the total supporting pressure in the axial direction of the roll by the axial width (effective roll width) of the roll surface in which the pocket as the mother die is engraved (roll supporting pressure = roll total). The supporting pressure / roll width) is set to about 8 t / cm or less.
【００１５】このロール支持圧下での圧縮成形では、植
物質粉末中の含水量が１５重量％以下と少ないことか
ら、植物質粉末から絞り出されることがなく、各々の粉
末表面が水で覆われることがない。従って各々の粉末間
で互に強く絡み合い密着して高強度の成形物である複合
固形燃料が得られる。In the compression molding under the roll supporting pressure, since the water content in the vegetable powder is as small as 15% by weight or less, the powder surface is not squeezed out and each powder surface is covered with water. Never. Therefore, the powders of the respective powders are strongly entangled with each other and closely adhered to each other to obtain a composite solid fuel which is a high-strength molded product.
【００１６】[0016]
【発明の効果】以上説明した本発明における複合固形燃
料の製造方法によれば、石炭を乾燥粉砕した石炭粉末に
植物質粉末を最大量２５重量％までの範囲で混合し、こ
の混合物をロールプレスでロール支持圧を略８ｔ／ｃｍ
以下に設定して複合固形燃料を圧縮成形する際、石炭の
乾燥を、乾燥に要する消費動力が小である付着水分を１
〜２重量％程度に、また植物質を、その含水量が１５重
量％以下になるよう乾燥させることから乾燥に要する消
費動力の軽減及び作業時間の短縮が図れ、生産効率の向
上が得られる。また石炭の表面が絶乾状態となることが
なく、発火の危険から回避され作業の安全が確保できる
等本発明特有の効果を有する。EFFECT OF THE INVENTION According to the method for producing a composite solid fuel in the present invention described above, plant powder is mixed with coal powder obtained by dry pulverizing coal in a range of up to 25% by weight, and this mixture is roll-pressed. Roll support pressure is about 8t / cm
When the composite solid fuel is compression molded under the following settings, the coal is dried and the water consumption required for the drying is small.
Since the plant material is dried to about 2% by weight or so that the water content thereof is 15% by weight or less, the consumption power required for drying can be reduced and the working time can be shortened, and the production efficiency can be improved. In addition, the surface of the coal does not become an absolutely dry state, and there is an effect peculiar to the present invention such as avoiding the danger of ignition and ensuring work safety.
【図１】複合固形燃料の製造方法の概略説明図である。FIG. 1 is a schematic explanatory diagram of a method for producing a composite solid fuel.
Claims (1)
に植物質を乾燥粉砕した植物粉末を最大量２５重量％ま
での範囲で混合し、この混合物をロールプレスでロール
支持圧を略８ｔ／ｃｍ以下に設定して圧縮成形する複合
固形燃料の製造方法において、原料となる石炭を付着水
分が１〜２重量％にまで乾燥し、かつ植物質をその含水
量が１５重量％以下に乾燥することを特徴とする、石炭
と植物質との複合固形燃料の製造方法。1. A coal powder obtained by dry pulverizing coal as a raw material is mixed with a plant powder obtained by dry pulverizing plant matter in a range of up to 25% by weight, and this mixture is roll-pressed at a roll supporting pressure of about 8 t / In the method for producing a composite solid fuel in which the pressure is set to cm or less, the raw material coal is dried to a water content of 1 to 2% by weight, and the plant material is dried to a water content of 15% by weight or less. A method for producing a composite solid fuel of coal and plant matter, which is characterized by the above.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23485392A JPH0680974A (en) | 1992-09-02 | 1992-09-02 | Production of composite solid fuel composed of coal and vegetable matter |
| CN93102571A CN1039346C (en) | 1992-09-02 | 1993-03-15 | Process for manufacturing composite solid fuel from coal and vegetable material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23485392A JPH0680974A (en) | 1992-09-02 | 1992-09-02 | Production of composite solid fuel composed of coal and vegetable matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0680974A true JPH0680974A (en) | 1994-03-22 |
Family
ID=16977381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23485392A Withdrawn JPH0680974A (en) | 1992-09-02 | 1992-09-02 | Production of composite solid fuel composed of coal and vegetable matter |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0680974A (en) |
| CN (1) | CN1039346C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09125079A (en) * | 1995-10-26 | 1997-05-13 | Shinichi Ito | Low-pollution and high-calorie solid fuel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604703A (en) * | 2011-01-19 | 2012-07-25 | 王景龙 | Biomass energy fuel combination and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3742026A1 (en) * | 1987-12-11 | 1989-06-22 | Varta Batterie | PLASTIC SEALING ELEMENT FOR GALVANIC PRIME ELEMENTS |
-
1992
- 1992-09-02 JP JP23485392A patent/JPH0680974A/en not_active Withdrawn
-
1993
- 1993-03-15 CN CN93102571A patent/CN1039346C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09125079A (en) * | 1995-10-26 | 1997-05-13 | Shinichi Ito | Low-pollution and high-calorie solid fuel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1083517A (en) | 1994-03-09 |
| CN1039346C (en) | 1998-07-29 |
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| A300 | Withdrawal of application because of no request for examination |
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