CN101586047B

CN101586047B - Boiler biomass fuel and preparation method thereof

Info

Publication number: CN101586047B
Application number: CN200810111944.0A
Authority: CN
Inventors: 张大伟
Original assignee: BEIJING SHUISANGTIAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Current assignee: BEIJING SHUISANGTIAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
Priority date: 2008-05-19
Filing date: 2008-05-19
Publication date: 2014-04-02
Anticipated expiration: 2028-05-19
Also published as: CN101586047A

Abstract

The invention provides a boiler biomass fuel. Components of the fuel are mycelium or/and mushroom dregs, as well as 0 to 80 percent of boiler fuel coal. The weight percentage of moisture contained by the boiler biomass fuel is less than or equal to 25 percent. The preparation method comprises the step of mixing the mycelium or/and the mushroom dregs with the boiler fuel coal. The invention uses the mycelium and the mushroom dregs produced while enterprises produce penicillin, streptomycin, terramycin, tetracycline, lincomycin, gentamicin and kanamycin after simple treatment as boiler fuels, can avoid environmental pollution, and effectively utilizes heat value in the mycelium and the mushroom dregs.

Description

A kind of boiler biomass fuel and preparation method

Technical field

The invention belongs to environmental protection technical field, relate to the mycelia producing in production of antibiotics process, the processing of bacterium slag, relate to particularly a kind of mycelia or/and the boiler biomass fuel that bacterium slag and coal are made.

The invention still further relates to the preparation method of above-mentioned boiler biomass fuel.

Background technology

Pharmacy corporation is in producing the antibiotic processes such as penicillin, Streptomycin sulphate, terramycin, tsiklomitsin, U-10149, gentamicin, kantlex, produce a large amount of mycelia or/and bacterium slag, in these mycelia, bacterium slag, protein accounts for 30-50%, fat accounts for 0.6-5.5%, residual a small amount of microbiotic and other physiologically active substances, also contain multiple amino acids and a large amount of moisture.

At present pharmacy corporation, to producing the mycelia that produces in microbiotic process or/and the treatment process that bacterium slag is taked has the pig of making or fowl feed, fodder additives, burns or outwells.Along with social development; food safety and environmental protection standard and requirement improve constantly, and making pig or fowl feed, fodder additives do not meet food safety, outwell to process and cause environmental pollution; and adopt investment and the processing costs of burning mode high, and need to consume a large amount of energy.

As the mycelia of waste or/and in bacterium slag, its butt calorific value is about 2,500-3,500kcal/kg, can, by mycelia or/and bacterium slag is made boiler biomass fuel, for the production of steam, can make the mycelia producing in pharmacy corporation production microbiotic process or/and bacterium slag obtains processing and utilizing, environmental pollution can be avoided again, and the spending of the energy and enterprise can be saved.Aforesaid method there is not yet report so far.

Summary of the invention

For current pharmacy corporation, produce the weak point of the bacterium slag treatment technology producing in microbiotic process, the object of the present invention is to provide a kind of by mycelia or/and the boiler biomass fuel that bacterium slag and boiler oil coal are made.

Another object of the present invention is to provide a kind of method of preparing above-mentioned boiler biomass fuel.

For achieving the above object, boiler biomass fuel provided by the invention, its composition is mycelia or/and bacterium slag, and weight in wet base per-cent is less than or equal to 25%.

In boiler biomass fuel of the present invention, by total weight percent, can also contain weight percent is the boiler oil coal of 0-80%.

Described boiler biomass fuel, wherein, mycelia and bacterium slag refer to produces mycelia and the bacterium slag producing in penicillin, Streptomycin sulphate, terramycin, tsiklomitsin, U-10149, gentamicin, kantlex process.

The method of the above-mentioned boiler biomass fuel of preparation provided by the invention is by mycelia or/and bacterium slag raw material dewaters and drying treatment, makes its weight in wet base per-cent be less than or equal to 25%.

Described preparation method, wherein, mycelia and bacterium slag refer to produces mycelia and the bacterium slag producing in penicillin, Streptomycin sulphate, terramycin, tsiklomitsin, U-10149, gentamicin, kantlex process.

Described preparation method, can also be by the mycelia after drying treatment or/and bacterium slag and boiler oil coal be mixed and made into boiler biomass fuel, the water ratio of boiler biomass fuel is less than or equal to 25% by weight percentage, and the weight percent of boiler oil coal is less than or equal to 80%.

The method of the above-mentioned boiler biomass fuel of preparation provided by the invention, weight in wet base per-cent can also be less than or equal to 65% mycelia or/and bacterium slag raw material and boiler oil coal are mixed and made into boiler biomass fuel, wherein the add-on of boiler oil coal is to make the weight in wet base per-cent of boiler biomass fuel be less than or equal to 25%.

The application of boiler biomass fuel provided by the invention, its input amount of boiler and the weight percent of boiler oil total burn-off are less than or equal to 10～30%.

Effect of the present invention is, enterprise is produced to the mycelia and the bacterium slag that in penicillin, Streptomycin sulphate, terramycin, tsiklomitsin, U-10149, gentamicin, kantlex process, produce and simply after processing, be used as boiler oil, can avoid environment, effectively utilize calorific value in mycelia and bacterium slag simultaneously.

Accompanying drawing explanation

Fig. 1 is boiler biomass fuel exploration and application schematic flow sheet;

Fig. 2 is schematic diagram when coal firing boiler 8 adopts circulating fluidized bed combustion coal boiler in Fig. 1.

Main mark explanation in figure:

1 mycelia is or/and bacterium slag, 2 dehydration equipments, 3 drying plants, 4 whipping devices, 5 boiler oil coals, 6 boiler biomass fuels, 7 handling equipments, 8 coal firing boilers, 9 flue gas purifying equipments, 10 inlets, 11 circulating fluidized bed combustion coal boilers, 12 combustion chamber emulsion zones, 13 freeboard of fluidized bed, combustion chamber, 14 worm conveyors.

Embodiment

Embodiment 1

Certain drugmaker, in producing penicillin process, produces the mycelia of 8,900 tons of water content 80% every year or/and bacterium slag raw material, and the present embodiment is made into boiler biomass fuel by mycelia and bacterium slag.It should be noted that, the present invention adopts the waste producing while being enterprise's production microbiotic, and this waste can be mycelia or bacterium slag, can be also the mixture of mycelia and bacterium slag, and both blending ratios do not limit.

Referring to Fig. 1, is preparation flow of the present invention and application flow schematic diagram.

By mycelia, or/and bacterium slag raw material 1 dewaters, dehydration equipment 2 is known equipment, as centrifugal drier, filter-press type dewatering machine; This example adopts centrifugal drier.

By through the mycelia of processed or/and bacterium slag 1 carries out drying treatment, drying plant 3 is known equipment, this example adopts rotary type drying oven, the heat of this rotary type drying oven be utilize hot flue gas that circulating fluidized bed combustion coal boiler discharges to mycelia or/and bacterium slag 1 carries out drying treatment.Dewater and be dried to mycelia and make boiler biomass fuel or/and the water ratio of bacterium slag 1 is less than or equal to 25% (weight percent).

The present invention does not have strict restriction to dehydration equipment and drying plant, as long as can meet mycelia or/and the dehydration of bacterium slag and drying treatment.

Embodiment 2

On the basis of embodiment 1, be about to mycelia or/and bacterium slag 1 dewaters, dehydration equipment 2 is known equipment, as centrifugal drier, filter-press type dewatering machine; This example adopts centrifugal drier.

By through the mycelia of processed or/and bacterium slag 1 carries out drying treatment, drying plant 3 is known equipment, this example adopts rotary type drying oven, the heat of this rotary type drying oven be utilize hot flue gas that circulating fluidized bed combustion coal boiler discharges to mycelia or/and bacterium slag 1 carries out drying treatment.Dehydration and be dried to mycelia or/and the water ratio of bacterium slag 1 is less than or equal to 25% (weight percent), adds boiler oil coal 5 to mix, and makes the water ratio of the boiler biomass fuel made be less than or equal to 25% (weight percent).The add-on of this boiler oil coal is strict restriction not, is less than or equal to weight percent 80%.

Embodiment 3

The mycelia that is 60% by water ratio makes boiler biomass fuel or/and bacterium slag raw material adds boiler oil coal to mix, and wherein the add-on of boiler oil coal is to make the water ratio of boiler biomass fuel be less than or equal to 25%.

Its application process of boiler biomass fuel of preparing in order to further illustrate the present invention, incorporated by reference to Fig. 1 and Fig. 2.Shown in Fig. 2, be the concrete example of the coal firing boiler 8 in Fig. 1, coal firing boiler of the present invention is known equipment, can adopt chamber combusting boiler, circular fluid bed, grate firing boiler etc., and comparatively ideal is to adopt circulating fluidized bed combustion coal boiler 11.

Brief description circulating fluidized bed combustion coal boiler 11 is used boiler biomass fuel 6 methods.It should be noted that, which kind of boiler coal firing boiler 8 of the present invention adopts there is no strict restriction, as long as can meet boiler biomass fuel 6, uses.Why to circulating fluidized bed combustion coal boiler 11, use boiler biomass fuel 6 to do a summary here, be to wish to help further understanding method of the present invention of those skilled in the art, thereby implement.

In the combustion chamber of circulating fluidized bed combustion coal boiler 11 emulsion zone 12 and freeboard of fluidized bed 13 intersection, before and after combustion chamber or on the membrane wall of left and right, symmetry is offered biomass fuel inlet 10, by handling equipment 7, boiler biomass fuel 6 is inputted in the combustion chamber of circulating fluidized bed combustion coal boilers 11 by inlet 10.Handling equipment 7 can adopt the equipment such as known worm conveyor, spiral pump, ram pump.Boiler oil coal 5 is sent in the combustion chamber of circulating fluidized bed combustion coal boiler 11 by the original worm conveyor 14 of circulating fluidized bed combustion coal boiler 11, and the ratio of the input of boiler biomass fuel 6 and boiler oil total burn-off is less than or equal to 30% (weight percent).

In order to prevent that boiler biomass fuel 1 from producing in combustion processes, discharge of noxious gases, in coal firing boiler 8 fume exhaust systems, flue gas purifying equipment 9 is installed.Flue gas purifying equipment 9 adopts electrostatic precipitator to process, and then adopts sack cleaner and add activated carbon device to process, and increases the energy collecting power of flutterring of fine dust and the discharge that prevents Dioxins.Flue gas purifying equipment 9 is the field widespread uses such as known equipment, waste incineration at home and abroad.The present invention directly adopts standardized product on market, and the decreasing ratio of HCl, HF is reached to 96%, and the clearance of heavy metal is more than 95%, and flue dust clearance reaches 99.9%, and the clearance of Dioxins is more than 95%.

During 11 operation of circulating fluidized bed combustion coal boiler, boiler oil coal 5 is the main fuel of circulating fluidized bed combustion coal boiler 11, and boiler biomass fuel 6 is the auxiliary fuel of circulating fluidized bed combustion coal boiler 11.Boiler biomass fuel 6 add-ons are 5% of circulating fluidized bed combustion coal boiler 11 fuel inputs; Boiler oil coal 5 is sent into combustion chamber emulsion zone 12 burnings of circulating fluidized bed combustion coal boiler 11 by worm conveyor 14, boiler biomass fuel 6 is sent into the interior burning of circulating fluidized bed combustion coal boiler 11 by the biomass fuel inlet 10 of circulating fluidized bed combustion coal boiler 11.Boiler biomass fuel 6 forms agglomerate shape after entering circulating fluidized bed combustion coal boiler furnace by biomass fuel inlet 9, the temperature of combustion chamber is 850-950 ℃, the moisture that enters the agglomerate surface in combustion chamber volatilizees rapidly, and meanwhile, agglomerate surface takes fire; In agglomerate burning decline process, the moisture of agglomerate inside is heated and sharply expands, and causes agglomerate explosion to become little agglomerate; Little agglomerate is heated after burning, again the agglomerate of explosion Cheng Geng little.Now, the agglomerate of the boiler biomass fuel 6 of circular fluid bed 11 freeboard of fluidized bed, combustion chamber 13 belongs to large size, low-density particles, and emulsion zone 12 material in combustion chamber belong to small size, high density granular, therefore, the apparent density of combustion chamber emulsion zone 12 is far longer than the apparent density of freeboard of fluidized bed, combustion chamber 13, cause the agglomerate of coking burning cannot fall into 12 burnings of combustion chamber emulsion zone, but " floating " suspension combustion on combustion chamber emulsion zone 12, extended the residence time of boiler biomass fuel 6 agglomerates in freeboard of fluidized bed, combustion chamber 13, increased the combustion share of freeboard of fluidized bed, combustion chamber 13, after the separator that unburnt agglomerate is installed by circular fluid bed 11 combustor exit places is separated from flue gas, again be transmitted back in circulating fluidized bed combustion coal boiler 11 combustion chambers and burn away, iterative cycles is until after-flame, the flying dust producing after the burning of boiler biomass fuel agglomerate is discharged with flue gas.In order to prevent boiler biomass fuel discharge of noxious gases in combustion processes, in boiler exhaust gas system, adopt flue gas purifying equipment, process and remove smoke in objectionable impurities and pollutent.

Claims

1. a boiler biomass fuel, its composition is mycelia or/and bacterium slag, and described boiler biomass fuel weight in wet base per-cent is less than or equal to 25%; Wherein, mycelia and bacterium slag refer to and produce mycelia and the bacterium slag producing in penicillin, Streptomycin sulphate, terramycin, tsiklomitsin, U-10149, gentamicin, kantlex process; Described boiler is circular fluid bed.

2. boiler biomass fuel as claimed in claim 1, wherein, containing weight percent is the boiler oil coal of 0-80%.

3. boiler biomass fuel according to claim 1, wherein, mycelia is or/and be mixed and made into boiler biomass fuel with boiler oil coal after bacterium slag drying treatment, and the weight percent of boiler oil coal is less than or equal to 80%.