Product set for harmless combined utilization of waste-containing biomass solid fuel
By adding environmental protection restrictions in the formulation of waste biomass solid fuel and adopting dry distillation gasification combustion and co-production of activated carbon, the problems of high prices, low calorific value and new defects in combustion are solved, and the problem of high prices of biomass solid fuels is achieved. The economy and environmental protection of fuel are improved.
Patent Information
- Application Number
- CN202411095170.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-17
- Filing Date
- 2024-08-05
- Publication Date
- 2025-02-21
AI Technical Summary
Biomass solid fuel has defects such as high price and low calorific value, and new defects will appear in combustion and use of waste biomass solid fuel, such as potential powder explosion hazards, scaling problems, the formation of polycyclic aromatic hydrocarbons and the existence of toxic heavy metals.
By selecting the best parts with environmental protection and practicality in the formulation of waste biomass solid fuel, and adding environmental protection restrictions, such as the high-level heat generation of dry foundation does not exceed 5400Kcal/kg and no naked-eye visible smoke, dry distillation gasification combustion and The method of co-producing activated carbon is to reduce the exhaust gas treatment load by using gasification combustion and convert the residual carbon into activated carbon.
The economic and environmental protection of biomass solid fuels has been improved, and the potential risks of polycyclic aromatic hydrocarbon generation and powder explosion caused by smoke during combustion have been avoided, and the impact of boiler thermal conductivity and environmental pollution of toxic heavy metals has been reduced.
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Abstract
Description
Technical Field
[0001] The present invention provides a product set for harmlessly combining and utilizing waste biomass solid fuels, and relates to how to open up the raw materials of biomass solid fuels, which have defects such as high price and low calorific value compared with coal, and add environmental garbage to obtain the so-called "waste biomass solid fuels", and proposes targeted preventive technical solutions for many new defects that will inevitably occur during the combustion and use of waste biomass solid fuels containing garbage components. The present invention belongs to a new field of harmlessly combining and utilizing waste biomass solid fuels. Background Art
[0002] In today's world, in order to protect the environment, the use of coal is decreasing year by year. At the same time, biomass solid fuel, as a renewable new energy product, has also been rapidly expanding in recent years. However, compared with coal, biomass solid fuel generally has defects such as higher prices and lower calorific value, which seriously hinder the market promotion of this new renewable energy product. Specifically, there are at least five defects that hinder its rapid market promotion:
[0003] First, the calorific value and market price of biomass solid fuels made from straw and wood are generally as follows: the dry basis high calorific value of straw biomass solid fuel is about 3500Kcal / kg, and the dry basis high calorific value of wood biomass solid fuel is about 4500Kcal / kg; the current market price of biomass solid fuel products is usually 750 to 850 yuan / ton in summer and 850 to 1200 yuan / ton in winter; because the calorific value is lower than the 5000Kcal / kg value of general coal, the cost of using it to replace coal will always be greatly increased;
[0004] Secondly, if the solid fuel containing waste biomass prepared by the scheme of doping waste plastics and the like described in CN2023106418246 "Collection of solid fuel products obtained from environmental waste" is used in power generation enterprises, the current industry recommended method of use is: after being mixed with coal and then ground into powder, it is introduced into a boiling combustion furnace through a pipeline for combustion. However, due to the doping of waste plastics, the material is likely to contain metal powder / chips compounded or mixed with miscellaneous waste plastics, which buries the hidden danger of powder explosion for subsequent combustion in a boiling combustion furnace;
[0005] Third, according to the current recommended usage method of power generation enterprises, biomass solid fuel is pulverized together with coal and then sent to the boiling combustion furnace for combustion. Because biomass naturally contains silica, it is easy to form scale on the contact surface of the heat transfer tubes in the boiler at high temperature. When the deposit is thick, it will seriously affect the heat transfer efficiency and increase the fuel consumption of the boiler.
[0006] Fourthly, if the waste biomass solid fuel is prepared according to the scheme of mixing waste plastics and other garbage as described in CN2023106418246, the public will generally have doubts: the media and professional textbooks all say that the burning of garbage or miscellaneous waste plastics will produce serious smoke, that is, a large amount of fly ash will be generated, and there are always highly toxic polycyclic aromatic hydrocarbons (PAHs) including dioxins in fly ash. If garbage containing waste plastics is to be mixed into biomass solid fuel, how can we ensure that no polycyclic aromatic hydrocarbons (PAHs) are generated?
[0007] Fifth, if the waste biomass solid fuel is prepared according to the scheme of mixing waste plastics and other garbage as described in CN2023106418246, the additives added therein to passivate the toxic heavy metals or their oxides that are likely to exist in the material will generally cause the ash to be granulated into ceramic slag. This fuel that will form slag not only hinders many combustion furnaces that automatically discharge slag with powder ash, but also because its slag is black and has not been burned out, the release of thermal energy of the fuel is greatly hindered.
[0008] Therefore, at present, in the modern society where the environmental protection atmosphere is getting stronger, it is urgent for inventors to provide a new utilization plan for biomass solid fuel, especially for new waste biomass solid fuel, which is harmless, more economical and more in line with the concept of environmental protection. Summary of the invention
[0009] The purpose of the present invention is to provide a product collection of harmless combined utilization of waste biomass solid fuel, which not only includes targeted solutions to the defects of current pure biomass solid fuel compared with coal, such as high price and low calorific value; it also includes new products of waste biomass solid fuel that can widely absorb environmental waste, which will inevitably produce more new problems such as waste gas and solid waste than ordinary pure biomass solid fuel, and provides new solutions to prevent or solve them.
[0010] The idea of the present invention is to provide a product set for harmlessly combining and utilizing waste biomass solid fuels, specifically:
[0011] 1. The waste biomass solid fuel of the present invention is based on the formula definition of CN2023106418246 "Collection of solid fuel products obtained from environmental waste", and is innovative in type A-1, that is, it is composed of the best parts with environmental protection and practicality: the dry basis high calorific value of the waste biomass solid fuel obtained by its formula is in the range of 3500 to 5400Kcal / kg, because the products in this range have better practicality; and the environmental protection limit conditions are newly added: the dry basis high calorific value does not exceed 5400Kcal / kg, and when each single bare particle burns in the air, there is no smoke visible to the naked eye on its flame. (Note: smoke is fly ash, and its co-products include at least polycyclic aromatic hydrocarbons including dioxins, so smoke becomes a visible marker for whether polycyclic aromatic hydrocarbons are generated or not). This concept 1 not only inherits the open source of raw materials for biomass solid fuels in CN2023106418246, but also takes a big step forward in cost reduction and environmental protection compared to traditional pure biomass solid fuels: new environmental quality inspection limit conditions are added. This is the first step in setting up a preventive isolation wall in the safe resource utilization of environmental waste containing waste plastics, which is a new improvement compared to CN2023106418246.
[0012] 2. For the combustion method of waste biomass solid fuel, dry distillation gasification combustion is recommended first (the subsequent text generally refers to dry distillation gasification combustion, referred to as gasification combustion), because the gasification combustion furnace, even if it burns fluffy domestic waste, the combustible gas gasified after oxygen-deficient combustion is burned in the second furnace or combustion stove, and its exhaust gas is the easiest to be treated to meet the "dioxin" limit value range specified in the "National Environmental Protection Standard of the People's Republic of China" (rHJ9162017).
[0013] 3. Change the old idea of simply treating biomass solid fuel like coal, simply burning the material, and then directly judging it by the ratio of the heat release and its ton price.
[0014] 4. The total weight of the solid fuel containing waste biomass W 生物质总 The organic volatile matter W VOCs For gasification combustion, only W with the same heat equivalent weight is used. VOCs To replace coal (i.e. ) is burned for heat supply, and the organic volatile components in the solid fuel of the waste biomass are gasified and removed. VOCs The amount of residual carbon W 余炭 For other purposes. 余炭 "Moving to the field of preparing activated carbon, which is also in great demand and expensive; the realization of this concept will be able to bypass the defects of biomass fuel that is easy to coke and scale.
[0015] 5. Use algebraic method to estimate the economic feasibility of concept 4: when the total weight W of the current “pure biomass solid fuel” is burned 生物质总 of combustion heat to replace an equivalent weight of coal W 煤 The heat generated is: Q 生物质总 =Q 煤 When , there exists the following equivalent relationship of formula (1): In addition, the combustion calorific value of pure biomass solid fuel per unit weight is generally lower than that of coal, so when the equivalent calorific value is replaced, inequality (2) always holds: W 生物质总 >W 煤 ————(2) Because the unit price of pure biomass solid fuel on the market is m 生物质单价 Always higher than the unit price of coal m 煤单价 , so inequality (3) holds true: M 生物质总价 =W 生物质总 ×m 生物质单价 >W 煤 ×m 煤单价 =M 煤总价 ————(3); When switching to Concept 2, the implementation is: Therefore, the new use of biomass solid fuel to replace coal will reduce the cost and approach the price of coal: ∵M VOCs =W VOCs ×m VOCs单价 =M 生物质总价 -M 余炭总价 ————(5), Compare the left side of the “>” in equation (3) with equation (5), as long as M 余炭总价 =W 余炭 ×m 余炭单价 >0, Then inequality (6) will always hold: M VOCs <M 生物质总价 ————(6) ∴M 生物质总价 >M VOCs , ∴M VOCs M 生物质总价 Closer to M 煤总价 ; Then transform (5) to obtain formula (7): W VOCs ×m VOCs单价 =M生物质总价 -M 余炭总价 m VOCs单价 =(M 生物质总价 -M 余炭总价 )÷W VOCs m VOCs单价 =(W 生物质总 ×m 生物质单价 -W 余炭 ×m 余炭单价 )÷W VOCs ————(7);
[0016] If we substitute the market price in Laishui, Hebei Province on August 14, 2023 into formula (7), and the experimental data of the waste biomass solid fuel prepared by the applicant / inventor of this case according to the scheme of doping 30% waste plastic as described in CN2023106418246, which has a calorific value of the same order of magnitude as 5000Kcal / kg coal, we can see: m VOCs单价 =(1 ton 生物质总 ×850 yuan / ton 生物质单价 -0.3 tons 余炭 ×1500 yuan / ton 余炭单价 )÷0.7 tons vOCs m VOCs单价 =(850-450)÷0.7 m VOCs单价 ≈571 (yuan / ton).
[0017] Since the calorific value of the pure biomass solid fuel is of the same order of magnitude as 5000Kcal / kg coal, it is only necessary to convert m VOCs单价 With 5000Kcal / kg coal m 煤单价简单 For comparison, the market price in Laishui, Hebei Province on August 14, 2023 is: 5000Kcal / kg coal m 煤单价 In the range of 800 to 1500 yuan / ton; and according to concept 4, the team of this application can self-match and be willing to charge 850 yuan / ton 生物质单价 Selling waste biomass solid fuel can save 279 yuan per ton of volatile fuel in pure biomass solid fuel for users to burn in the use stage. The key point of this invention is to recommend the use of waste biomass solid fuel, and its raw material cost can be at least 80 yuan / ton lower than the cost price of traditional pure biomass solid fuel.
[0018] 6. The present invention is directed to waste biomass solid fuels, which are derived from environmental waste and are likely to contain waste batteries and other toxic heavy metals rich in chromium, cadmium, lead, mercury, etc. According to concept 4, they will eventually accumulate in activated carbon. Therefore, the activated carbon obtained according to concept 4 is preferably used for sewage purification, thereby obtaining sewage treatment sludge containing such waste activated carbon. For this sludge, the idea of the present invention is to introduce it into cement, bricks, and glazed ceramsite, and finally make the toxic heavy metal oxides therein become silicates or melt into the nearly glassy glazed ceramsite to be completely passivated and become inert substances that are harmless to the environment.
[0019] In short, the new product collection of harmless combined utilization of waste biomass solid fuel proposed in the present invention is to seize the industrial chain sectors from the preparation source of waste biomass solid fuel to the downstream related uses, and work together to add a series of efficiency-enhancing and harm-avoiding firewalls around a series of products and their uses.
[0019] The present invention specifically achieves the above-mentioned purpose through the following technical solutions:
[0020] 1. A product set for harmless joint utilization of waste biomass solid fuel is proposed, wherein the sub-products included in the product set are a / b; and c / d; and any one or more combinations of e to g:
[0021] a- heat, and / or combustible gas, or tar, obtained by gasification and combustion of the fuels mentioned in the title,
[0022] b-activated carbon, all of which are obtained by gasification and combustion of the above fuels;
[0023] c- steam, obtained from the aforementioned combustible gas,
[0024] d-Electricity, obtained by directly supplying the high-pressure steam obtained from the aforementioned combustible gas to a steam turbine generator, or / and obtained by directly supplying the aforementioned combustible gas to a gas turbine generator;
[0025] e- Waste biomass solid fuel specially used for cement burning, which is prepared by adding biomass or miscellaneous waste plastics to the sludge obtained after the above-mentioned activated carbon is used for sewage purification.
[0026] f- Glazed ceramsite, made by firing the aforementioned slag mud and mixing it with clay materials.
[0027] g-Bricks are made by firing the aforementioned slag mud and other clay materials.
[0028] 2. The characteristics of the product set described in Technical Solution 1, the waste biomass solid fuel used as raw material are:
[0029] Based on the formula definition of CN2023106418246 "Collection of solid fuel products obtained from environmental waste", the best parts with environmental protection and practicality are selected, and the materials include at least the following crushed materials and / or mixed granulated materials after fine crushing:
[0030] A: Biomass waste in the environment that does not or is less likely to smell,
[0031] or / and B - fermented biomass waste in a deodorized and disinfected environment,
[0032] or and C – waste plastics in environmental waste and / or waste plastics collected by the society;
[0033] The weight of each material "W 甲 +W 乙 +W 丙 "The total is always equal to 10 parts by weight, and the weight ratio of each type of material is "W 甲 / W 乙 / W 丙 "Different changes in the range of "0-9.9 / 0-8 / 0-6" constitute a total waste biomass solid fuel product set, the dry basis high calorific value of this set is in the range of 3500Kcal / kg to 5400Kcal / kg;
[0034] The environmental protection limit conditions that this set must meet are: the dry basis high calorific value does not exceed 5400Kcal / kg, and when each single bare pellet burns in the air, there must be no smoke visible to the naked eye on its flame (see Figure 8 ).
[0035] 3. The material characteristics of the waste biomass solid fuel involved in the product set described in technical solutions 1 and 2 also include at least the combination of 3-1 to 3-3:
[0036] 3-1. The "A - biomass waste materials in an environment that does not or is difficult to stink" described in Technical Solution 2 includes at least: waste cotton wool, discarded furniture, waste mushroom sticks, waste wood from the construction industry, camphor tree leaf residues for refining essential oils, miscellaneous waste wood dug out from landfills, agricultural waste straw / dead vines / seed shells, abandoned tree branches and fallen leaves from roads or forests / gardening pruning, and deactivated activated carbon residues abandoned from the decolorization process of the sugar / pharmaceutical / oil industry, or crushed materials after the glass / stone / metal is separated and removed;
[0037] 3-2. The "B - fermented biomass waste in a deodorized and disinfected environment" described in Technical Solution 2 includes at least: biogas residue, restaurant waste, catering waste, kitchen waste, livestock and poultry manure, Chinese medicine residues discarded by the Chinese patent medicine industry, mycelium fermentation residues discarded by the biochemical industry, sludge discharged from domestic sewage purification sedimentation tanks, floating garbage excavated from landfills, domestic garbage excavated from landfills, and any one or more combinations of wet / dry garbage collected daily from the society, or crushed materials after glass / stone / metal is separated and removed;
[0038] 3-3. The "C - waste plastics in environmental garbage or / and waste plastics collected from the society" as stated in Technical Solution 2 includes at least: old chemical fiber flooring products, agricultural discarded plastic film materials, fishery discarded plastic nets / floats, waste plastic lawns replaced by sports fields, waste plastic products / fabrics containing chemical fibers, miscellaneous waste plastics obtained from waste furniture, miscellaneous waste plastic film materials discarded by the waste paper recycling industry, plastic / plastic miscellaneous waste scraps discarded by the shoe industry, waste plastic film scraps discarded by the packaging and printing industry, any one or more combinations of broken materials of waste plastic flooring or wall decoration products removed from vehicle compartments, or crushed materials or agglomerated / extruded strips / granular materials after separation and removal of glass / stones / metals.
[0039] 4. The product collection described in Technical Solution 1 can be independently operated by one enterprise or collaboratively operated by multiple enterprises. Each of the products in items a, b, c, d, e, f, and g can become an independent commercial product.
[0040] 5. The "harmless combined utilization of waste biomass solid fuel" described in Technical Solution 1 is characterized by at least the following combination of A and any one or more of the necklace segments from B to E:
[0041] A. The chain segment blocks that start from gasification and combustion specifically include any one or more combinations of the following sub-chain segments A1 to A4:
[0042] A1. Use gasification combustion on solid fuels of waste biomass to obtain heat and ash, and / or combustible gas or tar;
[0043] A2. Using gasification combustion and co-production of activated carbon on solid waste biomass fuel to obtain heat and activated carbon, or heat and activated carbon and charcoal;
[0044] A3. The combustible gas is passed through a steam boiler to obtain steam;
[0045] A4. The combustible gas is passed through a steam boiler to obtain high-pressure steam, which is directly supplied to a steam turbine generator, or / and the combustible gas is directly supplied to a gas turbine generator to finally obtain electricity;
[0046] B. The activated carbon obtained from the A chain block is used exclusively for sewage adsorption and purification treatment, thereby obtaining sludge containing waste activated carbon from waste biomass solid fuel source;
[0047] C. using the aforementioned ash and / or the aforementioned slag mud to prepare a type of waste biomass solid fuel specifically used for burning cement;
[0048] D. using the aforementioned ash and / or the aforementioned slag mud to obtain glazed ceramsite by mixing and firing;
[0049] E. Using the aforementioned ashes and / or the aforementioned slag mud, mixing and firing to obtain bricks.
[0050] 6. The “gasification combustion” and “co-production of activated carbon” described in the A segment of Technical Solution 5 are characterized by:
[0051] The “gasification combustion” is to first use a dry distillation gasifier to gasify and burn the solid waste biomass fuel under insufficient oxygen supply conditions, so that the volatile organic matter VOCs therein overflow, collect the VOCs or remove the tar through a pipeline, and then lead them to a second combustion furnace or stove, and then burn them for heat in the second combustion furnace or stove with sufficient oxygen supply, thereby using 6 / 10 to 7 / 10 of the weight of the total solid waste biomass fuel;
[0052] The "co-production of activated carbon" is to introduce the residual carbon that is still burning but with less flame or / and no flame but still burning, which accounts for 3 / 10 to 4 / 10 of the total weight of the waste biomass solid fuel introduced into the dry distillation gasification furnace, into the furnace chamber for generating activated carbon, and spray an appropriate amount of water mist or water vapor above 100°C, so that the residual carbon is quickly activated to form porous activated carbon; the "proper amount of spraying" mentioned above means that the activated carbon that meets the requirements of generating porous activated carbon, can extinguish the combustion of the residual carbon, and can also make the activated carbon that stays in the furnace chamber for no more than 60 minutes after extinguishing the combustion, finally have a moisture content of no more than 10% and the activated carbon out of the furnace will not burn again in the air;
[0053] And after the aforementioned "co-production of activated carbon" operation, the mixed combustible gas of carbon monoxide, hydrogen or carbon powder particles generated by burning the residual carbon and water is also combined and introduced into the "pipeline" described in the aforementioned "gasification and combustion" paragraph.
[0054] 7. The “harmless combined utilization of waste biomass solid fuel” described in Technical Solution 5 can be implemented independently by one enterprise or by multiple enterprises in a coordinated division of labor or jointly. BRIEF DESCRIPTION OF THE DRAWINGS
[0055] Figure 1 : A block diagram of the harmless combined utilization of waste biomass solid fuel to form the product collection.
[0056] Figure 2 : Use the search term: "Sudden fire at an open-air pile of waste plastic products in Lihu Town" to retrieve photos of "Sudden fire at a pile of waste plastic products" on the Internet.
[0057] Figure 3 : Using the search term "Protect the blue sky and say 'no' to straw burning", photos of "straw burning in the fields" were retrieved online.
[0058] Figure 4 : Photo of composite plastic waste scraps discarded in shoemaking being squeezed into rod-shaped blocks - miscellaneous waste plastic fuel briquettes.
[0059] Figure 5 :right Figure 4 The photo shows that when the mixed waste plastic fuel briquettes are ignited in the air, smoke can be seen on the flame.
[0060] Figure 6 : A photo of biomass pellet fuel pressed from pure hardwood sawdust discarded by a furniture factory when making hardwood furniture (the dry basis high calorific value of this product is usually around 4800Kcal / kg).
[0061] Figure 7 :Pick Figure 6 The photo shows a biomass pellet fuel made of pure hardwood sawdust that has been soaked in water (somewhat loose in texture and theoretically more smoky) being ignited.
[0062] Figure 8 : A photograph of a smokeless sample with a quality slightly below the smokeless / smokeless critical mass that was sent to an authoritative quality inspection, showing no smoke on the bare particle flame.
[0063] Figure 1 Description of the numbers: A: Utilization segment for using gasification combustion or co-production of activated carbon for solid fuel of waste biomass, B: Using activated carbon obtained from segment A for sewage adsorption and purification to obtain sludge, C: Using ash from segment A / sludge from segment B to make cement fuel, D: Using ash from segment A / sludge from segment B to make glazed ceramsite, E: Using ash from segment A or / and sludge from segment B to make bricks; 1- Waste biomass solid fuel, 2-gasification combustion, 3-activated carbon obtained by gasification combustion of the fuel, 4-heat, 5-ash, 6-combustible gas, 7-tar, 8-charcoal, 9-steam boiler, 10-steam, 11-high-pressure steam, 12-steam turbine generator, 13-gas turbine generator, 14-electricity, 15-wastewater adsorption and purification treatment, 16-slag containing waste activated carbon as a source of waste biomass solid fuel, 17-waste biomass solid fuel specially used for firing cement, 18-glazed ceramsite, 19-brick. (Note: the content in bold Song font belongs to the sub-products in the product set.) Example Directory
[0064] Example 1. Product collection example of harmless combined utilization of waste biomass solid fuel
[0065] Example 2. Characteristics of the composition of the solid fuel containing waste biomass described in Example 1
[0066] Example 3. Detailed examples of the composition of the solid fuel containing waste biomass described in Example 2
[0067] Example 4. Commercialization of a product portfolio using solid fuels from waste biomass
[0068] Example 5. The solid fuel of waste biomass in Example 1 is harmlessly utilized in a combined manner
[0069] Example 6. Specific example of gasification combustion and co-production of activated carbon in A of Example 5
[0070] Example 7. Origin of the experimental value of the added limit condition compared to CN2023106418246
[0071] Example 8. Industrialization example of harmless combined utilization of waste biomass solid fuel DETAILED DESCRIPTION
[0072] Next, the embodiments will be combined with the accompanying drawings to more clearly and completely describe the technical solution of the present invention. Obviously, the described embodiments are only part of the technical solution of the present invention, not all of it. Based on the embodiments of the present invention, all other equivalent embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention. Example 1. Product collection example of harmless combined utilization of waste biomass solid fuel:
[0073] A product set for harmlessly utilizing waste biomass solid fuels, wherein the sub-products included in the product set are a / b; and c / d; and any one or more combinations of e to g:
[0074] a- heat, and / or combustible gas, or tar, obtained by gasification and combustion of the fuels mentioned in the title,
[0075] b-activated carbon, all of which are obtained by gasification and combustion of the above fuels;
[0076] c- steam, obtained from the aforementioned combustible gas,
[0077] d-Electricity, obtained by directly supplying the high-pressure steam obtained from the aforementioned combustible gas to a steam turbine generator, or / and obtained by directly supplying the aforementioned combustible gas to a gas turbine generator;
[0078] e- Waste biomass solid fuel specially used for cement burning, which is prepared by adding biomass or miscellaneous waste plastics to the sludge obtained after the above-mentioned activated carbon is used for sewage purification.
[0079] f- Glazed ceramsite, made by firing the aforementioned slag mud and mixing it with clay materials.
[0080] g-Bricks are made by firing the aforementioned slag mud and other clay materials.
[0081] Please note: the combination described in Example 1 can be at least 63, because this combination is separated by two ";" as in the above text, so the above text is divided into three sub-combinations. The first sub-combination a / b is to choose 1 among a, b, a and b; the second sub-combination c / d is also to choose 1 among the three; the third sub-combination is any one or more combinations from e to g, which is to choose 1 among seven items: e, f, g, e and f, e and g, f and g, e and f and g; and because none of the three sub-combinations in the total combination can be zero, the total number of combinations becomes 3. 第1个子组合 ×3 第2个子组合 ×7 第3个子组合 =63 (kinds).
[0082] Among the three sub-combinations described in this Example 1, the first sub-combination a / b emphasizes the products obtained from gasification combustion; the second sub-combination c / d emphasizes the acquisition of steam and electricity products; the third sub-combination is any one or more combinations of e to g, emphasizing the products obtained from the harmless utilization of combustion ashes and sludge obtained from activated carbon treatment of sewage. Example 2. Characteristics of the composition of the solid fuel containing waste biomass described in Example 1
[0083] The composition characteristics of the waste biomass solid fuel as raw material described in Example 1 are as follows: Based on the formula definition of CN2023106418246 "Collection of solid fuel products obtained from environmental waste", the best part with environmental protection and practicality is selected, and the material composition includes at least the following crushed material and / or a mixed granulated material after fine crushing:
[0084] A: Biomass waste in the environment that does not or is less likely to smell,
[0085] or / and B - fermented biomass waste in a deodorized and disinfected environment,
[0086] or and C – waste plastics in environmental waste and / or waste plastics collected by the society;
[0087] The weight of each material "W 甲 +W 乙 +W 丙 "The total is always equal to 10 parts by weight, and the weight ratio of each type of material is "W 甲 / W 乙 / W 丙 "Different changes in the range of "0~7~9.9 / 0~1~8 / 0~2~6" to "0~2.5~9.9 / 0~2.5~8 / 0~5~6" constitute a total waste biomass solid fuel product collection, and the dry basis high calorific value of this collection is in the range of 3500Kcal / kg to 5400Kcal / kg;
[0088] The environmental protection limit conditions that this set must meet are: the dry basis high calorific value does not exceed 5400Kcal / kg, and when each single bare pellet burns in the air, there must be no smoke visible to the naked eye on its flame (such as Figure 8 shown).
[0089] The improvement of this embodiment 2 over CN2023106418246 lies in that: an environmental protection limit condition is added: the upper limit of the dry basis high calorific value of the collective product combustion does not exceed "5400Kcal / kg", and when each single bare particle burns in the air, there must be no smoke visible to the naked eye on its flame; and the high-cost component in CN2023106418246 - "D - at least the charcoal slag material remaining after the dry distillation of the aforementioned A or / and B" is eliminated, that is, the charcoal slag material remaining after the dry distillation of the aforementioned "A" and / or "B" in this embodiment is omitted. Example 3. Detailed examples of the composition of the solid fuel containing waste biomass described in Example 2
[0090] The major components of the solid fuel containing waste biomass described in Example 2, and its subdivided material characteristics, also include at least a combination of Examples 3-1 to 3-3:
[0091] 3-1 Example. The "biomass waste material in an environment that does not stink or is difficult to stink" described in Example 2 includes at least: waste cotton wool, discarded furniture, waste mushroom sticks, waste wood from the construction industry, camphor tree leaf residues for refining essential oils, miscellaneous waste wood dug out from landfills, agricultural waste straw / dead vines / seed shells, abandoned tree branches and fallen leaves from roads or forests / gardening pruning, and deactivated activated carbon slag abandoned in the decolorization process of sugar / pharmaceutical / oil industry, or crushed materials after separation and removal of glass / stones / metals;
[0092] 3-2 Example. The "B - fermented biomass waste in a deodorized and disinfected environment" described in Example 2 includes at least: biogas residue, kitchen waste, catering waste, kitchen waste, livestock and poultry manure, Chinese medicine residue abandoned by the Chinese patent medicine industry, mycelium fermentation residue abandoned by the biochemical industry, sludge discharged from domestic sewage purification sedimentation tanks, floating garbage excavated from landfills, domestic garbage excavated from landfills, wet / dry garbage collected daily from the society, or crushed materials after glass / stone / metal is separated and removed;
[0093] 3-3 Example. The "C - waste plastics in environmental garbage or / and waste plastics collected by the society" described in Example 2 includes at least: old chemical fiber flooring products, agricultural discarded plastic film materials, fishery discarded plastic nets / floats, waste plastic lawns replaced by sports fields, waste plastic products / fabrics containing chemical fibers, miscellaneous waste plastics obtained from waste furniture, miscellaneous waste plastic film materials discarded by the waste paper recycling industry, plastic / plastic miscellaneous waste edge materials discarded by the shoe industry, waste plastic film edge materials discarded by the packaging and printing industry, any one or more combinations of broken materials of waste plastic flooring or wall decoration products removed from vehicle compartments, or crushed materials or agglomerated / extruded strips / granular materials after separation and removal of glass / stones / metals. Example 4. Commercialization of a product portfolio using solid fuels from waste biomass
[0094] The product collection described in Example 1 can be independently operated by one enterprise or collaboratively operated by multiple enterprises. Each of the products in items a, b, c, d, e, f, and g (Note: the bold Song typeface contents in each item of Example 1 are all sub-products in the product collection) can all become independent commercial products. Example 5. The solid fuel of waste biomass in Example 1 is harmlessly utilized in a combined manner
[0095] The characteristics of harmless utilization of solid fuels from waste biomass, such as Figure 1 As shown, at least the following combinations of A and any one or more necklace segments from B to E are included:
[0096] A. The chain segment blocks that start from gasification and combustion specifically include any one or more combinations of the following sub-chain segments A1 to A4:
[0097] A1. Using gasification combustion 2 to obtain heat 4 and ash 5, or / and combustible gas 6 or tar 7 for solid fuel 1 containing waste biomass;
[0098] A2. The waste biomass solid fuel 1 is gasified and burned 2 and activated carbon 3 is co-produced to obtain heat 4 and activated carbon 3, or heat 4 and activated carbon 3 and carbon 8;
[0099] A3. The aforementioned combustible gas 6 is passed through a steam boiler 9 to obtain steam 10;
[0100] A4. The combustible gas 6 is passed through a steam boiler 9 to obtain high-pressure steam 11, which is directly supplied to a steam turbine generator 12, or / and directly supplied to a gas turbine generator 13 to obtain electricity 14;
[0101] B. The activated carbon 3 obtained from the A chain block is used exclusively for sewage adsorption and purification treatment 15, thereby obtaining sludge 16 containing waste activated carbon from waste biomass solid fuel source;
[0102] C. using the aforementioned ash 5 and / or the aforementioned sludge 16 to prepare a type of waste biomass solid fuel 17 specifically used for burning cement;
[0103] D. using the aforementioned ash 5 and / or the aforementioned slag 16, and mixing and firing to obtain glazed ceramsite 18;
[0104] E. using the aforementioned ash 5 and / or the aforementioned slag 16, and mixing and firing to obtain bricks 19;
[0105] Please note: The combination of A and any one or more necklace segments from B to E described in Example 5 can have at least 15 A中 ×15 B至E中 = 225 different combinations, because in A, when any one of A1 to A4 is selected, there are 4 types: A1, A2, A3, A4; when any two of A1 to A4 are selected, there are 6 types: A1A2, A1A3, A1A4, A2A3, A2A4, A3A4; when any three of A1 to A4 are selected, there are 4 types: A1A2A3, A1A2A4, A1A3A4, A2A3A4; when any four of A1 to A4 are selected, there is 1 type: A1A2A3A4; in total, there are 4+6+4+1=15 types in A;
[0106] Similarly, there are 15 combinations of any one or more necklace segments from B to E: any one from B to E includes 4 types - B, C, D, E; any two from B to E include 6 types - BC, BD, BE, CD, CE, DE; any three from B to E also have 4 types - BCD, BDE, CDE, EBC; and finally, there is only 1 type for the last four items from B to E - BCDE; in total, there are 4+6+4+1=15 types from B to E.
[0107] In the A segment block of this embodiment 5, it is emphasized that dry distillation gasification combustion should be used. The preferred method is A2, which is to use gasification combustion 2 to produce activated carbon 3. In any one or more of the segments from B to E, B is first recommended, which is to use the activated carbon 3 obtained from the A segment block exclusively for sewage adsorption and purification treatment 15. In C to E, it is recommended to use the ashes 5 described in the A segment block or / and the sludge 16 described in the B segment block harmlessly. Among them, the best method is to recommend the use of ashes 5 or / and sludge 16 to make glazed ceramsite 18. This scheme can make Cr more easily soluble in water. 3+ 、Cd 2+ The dissolution of chromium silicate and cadmium silicate in cement and brick making schemes is closer to zero, because the glaze ceramsite contains more glass phase, which will cause chromium oxide and cadmium oxide to be integrated into the glass phase during hot melting, thereby reducing the Cr in the water phase of the natural environment. 3+ 、Cd 2+ The dissolution amount is closer to zero. (Note: The bold Song-style content in items A to E belongs to the sub-products in the product set.) Example 6. Specific example of gasification combustion and co-production of activated carbon in A of Example 5
[0108] The “gasification and combustion” is to first use a dry distillation gasifier to dry distill and gasify the solid waste biomass fuel under the condition of insufficient oxygen supply, so that the volatile organic matter VOCs therein overflow, collect or detar the VOCs through a pipeline, and then lead them to a second combustion furnace or stove, and then burn them for heat supply in the second combustion furnace or stove with sufficient oxygen supply, thereby gasifying and burning 6 / 10 to 7 / 10 of the total weight of the solid waste biomass fuel (Note: this can be achieved by recording the total amount of activated carbon produced under stable operating conditions such as feed amount, gas output, and operating time, to reversely deduce the actual control parameters of the operating conditions corresponding to the required gasification and combustion consumption);
[0109] The "co-production of activated carbon" is to introduce the residual carbon that is still burning but with less flame or / and no flame but still burning, which accounts for 3 / 10 to 4 / 10 of the total weight of the waste biomass solid fuel entering the dry distillation gasification furnace, into the furnace chamber for generating activated carbon, and spray an appropriate amount of water mist or water vapor above 100°C, so that the residual carbon is quickly activated to form porous activated carbon; the "proper amount of spraying" mentioned above means that the activated carbon that meets the requirements of generating porous activated carbon, can extinguish the combustion of the residual carbon, and can also make the activated carbon that stops in the furnace chamber for no more than 60 minutes after extinguishing the combustion, finally has a moisture content of no more than 10% and the activated carbon out of the furnace will not burn again in the air (Note: This can be achieved by recording the total amount of activated carbon and its moisture content under the conditions of stable operation of the water vapor pressure / temperature, water vapor introduction amount, operation time, etc., to invert the actual control parameters of the operating conditions corresponding to the moisture content in the required activated carbon);
[0110] When the aforementioned "co-production of activated carbon" is operated, the carbon monoxide, hydrogen, or a mixed combustible gas with carbon powder particles generated by the burning of residual carbon and water are also introduced into the "pipeline" described in the aforementioned "gasification and combustion" paragraph. Example 7. Origin of the experimental value of the added limit condition compared to CN2023106418246
[0111] The material definition of "waste biomass solid fuel" in Example 1 is as follows: the best part of the most environmentally friendly and practical composition in the formula definition of CN2023106418246 is selected, and the limiting condition "when each single bare particle burns in the air, there shall be no smoke visible to the naked eye on its flame" is added. The origin of the experimental basis is:
[0112] The solid fuel containing waste biomass described in this application, the A and / or B, or C described in the ingredients of Examples 2 and 3, we first use the known knowledge to give the dry basis high combustion calorific value range of each item as follows:
[0113] A: Biomass waste materials in an environment that does not stink or is difficult to stink, contains organic volatiles, and has a high calorific value of 3500 to 4500 Kcal / kg on a pure material dry basis;
[0114] B - Fermented biomass waste in a deodorized and disinfected environment, containing organic volatiles, with a high calorific value of 600 to 2000 Kcal / kg on a pure material dry basis;
[0115] C: Waste plastics in environmental garbage and / or waste plastics collected from the society, containing organic volatiles, and the high calorific value of the pure material on a dry basis is in the range of 4500 to 7000 Kcal / kg.
[0116] Then let’s take a look together Figure 2 and Figure 3 :
[0117] Figure 2 The search terms were: "A sudden fire broke out at an open-air pile of waste plastic products in Lihu Town", and photos of "A sudden fire broke out at a pile of waste plastic products" were retrieved online.
[0118] Figure 3 The search terms are: "Protect the blue sky and say 'no' to straw burning" and the photos of "straw burning in the fields" were retrieved online.
[0119] Figure 2 , Figure 3 In today's public knowledge system, it is always used as experimental factual evidence to prohibit the burning of plastics and straw! Because a large number of strong carcinogens such as polycyclic aromatic hydrocarbons including dioxins can be detected in this kind of smoke!
[0120] But the facts that the inventor of this application wants to say are: Figure 2 , Figure 3 It also clearly implies that burning plastics, straw, etc. in ordinary air can achieve smokeless combustion! This is not explicitly stated in the textbook.
[0121] Let’s take a closer look Figure 2 , Figure 3 : Figure 2 The smoke is far better than Figure 3 The internal reason is that the applicant's explanation is more in line with the basic theory: Figure 2 It is the miscellaneous plastics, namely polyolefins, that catch fire, and the volatile organic compounds (VOCs) released after burning 杂废塑 Contains a large amount of polyolefins, olefins, etc. Figure 3 The burning of straw and plant fibers produces volatile organic compounds (VOCs). 秸秆 Contains a lot of methane, wood vinegar, etc.; due to (VOCs) 杂废塑 The calorific value of combustion can be as high as (VOCs) 秸秆 Double the order of magnitude (the dry basis high calorific value of waste plastics is generally between 4500 and 7000 Kcal / kg, and the dry basis high calorific value of straw is usually around 3500 Kcal / kg. When solids are burned in air with an oxygen content of 21%, (VOCs) 杂废塑 Compared with (VOCs), straw is relatively more hypoxic! So there is Figure 2 The smoke is much thicker than Figure 3 Based on this fact-based theoretical explanation, we can conclude that conclusion 1 is true: reducing the calorific value of volatile organic compounds (VOCs) can reduce the amount of smoke during combustion.
[0122] Let’s take a look at Figure 4 , Figure 5 , Figure 6 , Figure 7 :
[0123] Figure 4 : The composite plastic waste discarded in shoemaking is squeezed into rod-shaped blocks - a photo of miscellaneous waste plastic fuel briquette; the dry basis high calorific value of the material in this photo is 7000Kcal / kg.
[0124] Figure 5 :right Figure 4 The photo shows that when the mixed waste plastic fuel briquettes are ignited in the air, smoke can be seen on the flame.
[0125] Figure 6 : A photo of biomass pellet fuel pressed from pure hardwood sawdust discarded by a furniture factory when making hardwood furniture (the dry basis high calorific value of this product is usually around 4800Kcal / kg).
[0126] Figure 7 :Pick Figure 6 The photo shows a biomass pellet fuel made of pure hardwood sawdust that has been soaked in water (somewhat loose in texture and theoretically more smoky) being ignited.
[0127] Only from Figure 4 , Figure 5 and Figure 2 For comparison, please note: Figure 5 There is smoke on one flame but no smoke on the other flame, which indicates that there is a trend of less smoke on the flame. From market research, we know that: Figure 5 The waste plastic fuel briquettes shown generate smoke when burned, so they are mainly used to replace part of the coal in the current market and are used as fuel in thermal power plants. Because they have the serious disadvantage of being easy to smoke, this will cause the load of the exhaust gas treatment section of the combustion furnace to increase.
[0128] Then from Figure 6 , Figure 7 and Figure 3 The comparison shows that the biomass pellet fuel pressed by pure waste hardwood sawdust used in the experiment has a dry basis high calorific value of about 4800Kcal / kg. Figure 3 The high calorific value on a dry basis is usually around 3500Kcal / kg, and the straw has less smoke. Figure 7 From the ignition of a single bare pellet, there is no smoke on the flame. In addition, this bare pellet ignition test also shows that the burning time of the combustible fluffy material can be significantly extended after compaction, that is, the fuel can withstand burning - the volatilization rate of volatile organic compounds (VOCs) has decreased.
[0129] based on Figure 4 , 5 , 6, 7 and Figure 2 , 3 By comparing with the facts, we can conclude that Induction 2 is true: after compaction, the flammable fluffy materials can reduce the volatilization rate of volatile organic compounds (VOCs), thereby reducing the amount of smoke during combustion, and even achieving: when a single bare particle is ignited, no smoke is seen on the flame.
[0130] Through Figures 2 to 7 Through detailed comparison and analysis of the photos, we speculate that it is possible to add an appropriate amount of miscellaneous waste plastics with high volatile organic compounds (VOCs) to pure biomass or low calorific value combustibles, so that low calorific value volatile organic compounds (VOCs) will be generated after being ignited. 低热 and high calorific value volatile organic compounds (VOCs) 高热 , mixing occurs, producing volatile organic compounds (VOCs) 低热高热混合 And through compaction and granulation, the solid fuel of waste biomass is obtained, and then (VOCs) is reduced. 低热高热混合 The volatilization rate is thus reduced so that it does not produce smoke in the naked particle combustion flame.
[0131] As for how much waste plastic with high volatile organic matter (VOCs) can be added? This must be determined by the practice of research and development work!
[0132] How to obtain the critical mass sample of solid fuel bare particles burning in the air with or without smoke on the flame, and measure the critical value of the dry basis high calorific value corresponding to this sample, we do this:
[0133] According to experience, the dry basis high calorific value of wet garbage fermentation material is roughly estimated to be 2000Kcal / kg, with a dry basis W containing 15% water. 乙 , and the dry basis high calorific value of the miscellaneous waste plastics is roughly estimated to be 7000Kcal / kg, with a dry basis W containing 15% water 丙 , press W 乙 :W 丙 Make several series of samples with a variable value, then light them one by one with a lighter and observe them. Finally, you will be able to obtain a critical mass sample that seems to have smoke but not smoke. Then, for this critical mass sample, self-measure its corresponding dry basis high calorific value critical value ≈5400Kcal / kg.
[0134] Then, a smokeless sample with a temperature slightly lower than the critical mass was prepared and the quality inspection department of Beijing Qingxi Technology Research Institute was commissioned to measure the calorific value and conduct a full analysis of the smoke above the flame to see the content of polycyclic aromatic hydrocarbons.
[0135] The formula of the smokeless sample which was slightly below the critical mass was:
[0136] Press "W 甲 / W 乙 / W 丙=4 / 2 / 4" ratio, using sawdust from recycled composite square wood from Hebei Zhuanxing Technology Co., Ltd. 甲 = 4 parts, using the wet garbage fermentation product (dry basis) W from a wet garbage fermentation plant in Zhoukoudian, Beijing 乙 = 2 parts, using the discarded sinking material (dry basis) after water selection of miscellaneous waste plastic film discharged by a waste paper recycling enterprise W 丙 = 4 parts of the prepared granules.
[0137] The results of the quality inspection sent to Beijing Qingxi Technology Research Institute are shown in Table 1 and Table 2 below: (Table 1: Data comes from the test report number BT230302021-3 of Beijing Qingxi Technology Research Institute in the appendix of the request) (Table 2: Data comes from the analysis report number BT230302024 of Beijing Qingxi Technology Research Institute in the appendix of the request)
[0138] The quality inspection report results in Table 1 and their meanings are as follows: the dry basis high calorific value of the sample is 21.76MJ / kg, i.e. 5204Kcal / kg, which breaks through the limitation of the dry basis high calorific value of the narrow pure biomass solid fuel, which is always in the range of 3500-4500Kcal / kg (this is a technical progress compared with the existing pure biomass solid fuel); at the same time, it also informs: the dry basis ash content is 27.33%, that is, the formula can also use low-ash straw to replace high-ash wet garbage fermentation products, etc., or add a little waste plastic (the ash content in miscellaneous waste plastics is also high), etc., to obtain similar high calorific value products while reducing the ash content of the product; of course, the formula can also be stabilized, and this product can be supplied exclusively to cement plants for burning varieties that have no restrictions on ash content.
[0139] The results of the quality inspection report in Table 2 and their meaning are as follows: In the gas released during the combustion of the sample, no polycyclic aromatic hydrocarbons including dioxins were detected, but organic chlorides including dioxins were detected, and the end product after combustion with sufficient oxygen - hydrogen chloride (0.2144 mg / m 3 ). The lowest scale value and unit dimension of the instrument is “0.0001mg / m 3 "Look, that is, "0.1ng / m 3 ", that is to say: if there are polycyclic aromatic hydrocarbons including dioxins, their content per cubic m 3 The content in the gas is also less than "0.1ng / m 3"Below the range! This value is in line with the limit value range of "dioxin" specified in the "National Environmental Protection Standard of the People's Republic of China" (RHJ 916-2017).
[0140] The smokeless sample with a mass slightly below the critical mass was lit with a lighter and observed to have no smoke on the bare particle flame. Figure 8 It should be mentioned that the gas represented by the data in Table 2 is not the exhaust gas after the exhaust gas treatment of the current fuel furnace, but Figure 8 A complete analysis of the gases collected above the flame. Figure 5 The waste plastic fuel briquettes with smoke on the flame shown can be burned in the fuel furnaces of power generation enterprises that are equipped with complete after-furnace exhaust dust removal and can burn waste plastic briquettes. Figure 8 The waste biomass solid fuel shown in the figure can be put into the fuel furnace of the power generation enterprise that currently burns waste plastic briquettes. Its obvious advantage is that it will not increase the workload of the exhaust gas treatment device attached to the back of such furnace. Example 8. Industrialization example of harmless combined utilization of waste biomass solid fuel
[0141] The "harmless combined utilization of waste biomass solid fuel" described in Example 5 can be implemented independently by one enterprise or by multiple enterprises in a coordinated division of labor or jointly. The positive significance of the present invention is at least:
[0142] The present invention provides a product set for harmless joint utilization of waste biomass solid fuel. Behind the proposed "product set", there is a "joint utilization" of waste biomass solid fuel obtained by adding environmental garbage. From the source of formula preparation to the use of downstream multi-link plates, a multi-channel coordinated harmless cost reduction and efficiency improvement firewall is set:
[0143] First, the present invention (see Example 7 for details) analyzes the technical path of burning waste biomass solid fuel in the air without smoke from the photos of fire at the waste plastics purchasing station and the photos of straw fire in the field, and uses experiments and quality inspection data to determine: the waste biomass solid fuel mixed with miscellaneous waste plastics has a dry basis high calorific value in the range of 3500 to 5400 Kcal / kg; and an environmental quality inspection item is added: the dry basis high calorific value does not exceed 5400 Kcal / kg, and when each single bare particle burns in the air, there must be no smoke visible to the naked eye on its flame (see Example 2, etc. for details). This is the first firewall for harmless cost reduction and efficiency improvement at the source of the formulation preparation of waste biomass solid fuel to prevent the harm of polycyclic aromatic hydrocarbons such as dioxins caused by smoke during combustion.
[0144] Secondly, the present invention recommends using waste biomass solid fuel in a gasification combustion mode (see Examples 1, 5, 6, etc.) This is to prevent the current fuel furnace tail gas treatment system from being overloaded, and to set up a second firewall to prevent the tail gas from being harmful during combustion, thereby reducing costs and increasing efficiency.
[0145] Thirdly, the present invention recommends the gasification combustion and co-production of activated carbon (see Examples 1, 5, 6, etc. for details) to use solid fuels of waste biomass, which not only reduces the combustion cost, but also provides a low-cost and applicable new material for sewage purification - activated carbon, and also solves the problems of fuel coking during combustion and scaling of the heat transfer wall in the furnace. This not only sets up a third firewall of harmless cost reduction and efficiency improvement to prevent the problems in the current fuel furnace, but also opens a door to provide low-cost and applicable new materials for sewage purification.
[0146] Fourthly, the present invention recommends using the ash 3 generated during the use of the nano-waste biomass solid fuel, or / and the sewage purification sludge containing the waste activated carbon of the nano-waste biomass solid fuel source, to prepare any one of the nano-waste biomass solid fuel, glazed ceramsite, and bricks specifically used for firing cement (see Examples 1, 5, 6, etc. for details). This is the fourth firewall specially set up to prevent the presence of heavy metals in the nano-waste biomass solid fuel.
[0147] In short, the product collection of harmless combined utilization of waste biomass solid fuel provided by the present invention is complementary to the scheme of CN2023106418246 "Solid fuel product collection made from environmental waste", and helps the scheme proposed in CN2023106418246 to use combustible biomass or combustible materials such as waste plastics in various environments, which can all be mixed into biomass solid fuels, so that the A, B, C, D, and E multi-link sections in the industrial chain such as smokeless combustion, low cost and harmless ash can be used in a coordinated manner. By setting up multiple firewalls, it provides a more reliable and advanced solution for the implementation of environmental waste in the formulation preparation source of waste biomass solid fuel to the downstream multi-link sections than CN2023106418246.
[0148] Of course, those skilled in the art will also make many modifications and improvements to the product set of harmless combined utilization of waste biomass solid fuel proposed in the present invention, but these equivalent changes and modifications that do not break through the overall framework of the technical solution of the present invention and finally obtain solutions equivalent to the technical solution of the present invention should all fall within the protection scope of the present invention.
[0149] Note: The conjunctions or symbols of selectivity, parallelism, etc. used in the documents submitted in this application, such as "or", "or / and", " / ", "or and", have the following meanings:
[0150] The first type, "or", uses the general sentence pattern: A or B. The meaning is: choose one of the two options - A and B.
[0151] The second and third types, namely "or / and", " / ", are equivalent, and the sentence pattern used is: A or / and B, A / B, which means: choose one from the three types - A, B, A and B;
[0152] But the third kind of “ / ” has two other meanings. One is that it expresses the proportional relationship between two quantities, such as, A / B=3 / 5=3:5, that is, A is divided by B; the other is that “ / ” is equivalent to “÷”.
[0153] The fourth type, "or and", uses the general sentence pattern: A or and B, or: A, or and B. It is equivalent to "A or again and B" or "A, or again and B" or "A, or A and B", meaning: choose one of the two types - A, A and B.
Claims
1. A product set for harmless combined utilization of solid fuels containing waste biomass, wherein the sub-products included in the product set are a / b; and c / d; and any one or more combinations of e to g: a- heat, and / or combustible gas, or tar, obtained by gasification and combustion of the fuels mentioned in the title, b-activated carbon, all of which are obtained by gasification and combustion of the above fuels; c- steam, obtained from the aforementioned combustible gas, d-Electricity, obtained by directly supplying the high-pressure steam obtained from the aforementioned combustible gas to a steam turbine generator, or / and obtained by directly supplying the aforementioned combustible gas to a gas turbine generator; e- Waste biomass solid fuel specially used for cement burning, which is prepared by adding biomass or miscellaneous waste plastics to the sludge obtained after the above-mentioned activated carbon is used for sewage purification. f- Glazed ceramsite, made by firing the aforementioned slag mud and mixing it with clay materials. g-Bricks are made by firing the aforementioned slag mud and other clay materials.
2. The product set as claimed in claim 1, wherein the waste biomass solid fuel used as raw material is characterized by: Based on the formula definition of CN2023106418246 "Collection of solid fuel products obtained from environmental waste", the best parts with environmental protection and practicality are selected, and the materials include at least the following crushed materials and / or mixed granulated materials after fine crushing: A: Biomass waste in the environment that does not or is less likely to smell, or / and B - fermented biomass waste in a deodorized and disinfected environment, or and C – waste plastics in environmental waste and / or waste plastics collected by the society; The weight of each material "W 甲 +W 乙 +W 丙 "The total is always equal to 10 parts by weight, and the weight ratio of each type of material is "W 甲 / W 乙 / W 丙 "Different changes in the range of "0~9.9 / 0~8 / 0~6" constitute a total waste biomass solid fuel product collection, and the dry basis high calorific value of this collection is in the range of 3500Kcal / kg to 5400Kcal / kg; The environmental protection limit conditions that this assembly must meet are: the dry basis high calorific value does not exceed 5400Kcal / kg, and when each single bare particle burns in the air, there must be no smoke visible to the naked eye on its flame.
3. The product set described in claims 1 and 2, wherein the waste biomass solid fuel involved, has material characteristics that include at least the combination of 3-1 to 3-3: 3-1. The "biomass waste material in an environment that does not or is difficult to stink" as claimed in claim 2, comprises at least: Crushed materials of any one or more combinations of waste cotton wool, discarded furniture, waste mushroom sticks, waste wood from the construction industry, camphor tree leaf residues from refining essential oils, miscellaneous waste wood dug out from landfills, agricultural waste straw / dead vines / seed shells, tree branches and fallen leaves discarded from road or forest landscaping / gardening pruning, and deactivated activated carbon residues discarded from the decolorization process of the sugar / pharmaceutical / oil industry, or crushed materials after the glass / stone / metal is separated and removed; 3-2. The "B - fermented biomass waste in a deodorized and disinfected environment" as described in claim 2 includes at least: biogas residue, restaurant waste, kitchen waste, kitchen waste, livestock and poultry excrement, Chinese medicine residue discarded by the Chinese patent medicine industry, mycelium fermentation residue discarded by the biochemical industry, sludge discharged from domestic sewage purification sedimentation tanks, floating garbage excavated from landfills, domestic garbage excavated from landfills, wet / dry garbage collected daily from the society, or any combination of crushed materials or crushed materials after glass / stone / metal is separated and removed; 3-3. The "C - waste plastics in environmental garbage or / and waste plastics collected by the society" as stated in claim 2 includes at least: old chemical fiber flooring products, agricultural discarded plastic film materials, fishery discarded plastic nets / floats, waste plastic lawns replaced by sports fields, waste plastic products / fabrics containing chemical fibers, miscellaneous waste plastics obtained from waste furniture, miscellaneous waste plastic film materials discarded by the waste paper recycling industry, plastic / plastic miscellaneous waste scraps discarded by the shoe industry, waste plastic film scraps discarded by the packaging and printing industry, any one or more combinations of broken materials of waste plastic flooring or wall decoration products removed from vehicle compartments, or crushed materials or agglomerated / extruded strips / granular materials after separation and removal of glass / stones / metals.
4. The product collection described in claim 1 can be independently operated by one enterprise or collaboratively operated by multiple enterprises. Each of the products in items a, b, c, d, e, f, and g can become an independent commercial product.
5. The "harmless combined utilization of waste biomass solid fuel" as described in claim 1 is characterized by at least comprising the following combination of A and any one or more of the chain segments from B to E: A. The utilization chain segment plate starting from gasification combustion specifically includes any one or a combination of the following sub-chain segments A1 to A4: A1. Use gasification combustion on solid fuels of waste biomass to obtain heat and ash, and / or combustible gas or tar; A2. Using gasification combustion and co-production of activated carbon on solid waste biomass fuel to obtain heat and activated carbon, or heat and activated carbon and charcoal; A3. The combustible gas is passed through a steam boiler to obtain steam; A4. The combustible gas is passed through a steam boiler to obtain high-pressure steam, which is directly supplied to a steam turbine generator, or / and the combustible gas is directly supplied to a gas turbine generator to finally obtain electricity; B. The activated carbon obtained from the A chain block is used exclusively for sewage adsorption and purification treatment, thereby obtaining sludge containing waste activated carbon from waste biomass solid fuel source; C. using the aforementioned ash and / or the aforementioned slag mud to prepare a type of waste biomass solid fuel specifically used for burning cement; D. using the aforementioned ash and / or the aforementioned slag mud to obtain glazed ceramsite by mixing and firing; E. Using the aforementioned ashes and / or the aforementioned slag mud, mixing and firing to obtain bricks.
6. The "gasification combustion" and "co-production of activated carbon" described in the A segment block in claim 5 are characterized by: The "gasification combustion" is to first use a dry distillation gasification furnace to dry distill and gasify the solid fuel of waste biomass under the condition of insufficient oxygen supply, so that the volatile organic matter VOCs therein overflow, collect the VOCs or remove the tar through a pipeline, and then lead them to a second combustion furnace or stove, and then burn them for heat in the second combustion furnace or stove with sufficient oxygen supply, so that the weight of the total solid fuel of waste biomass is consumed by gasification and combustion; The "co-production of activated carbon" is to introduce the residual carbon that is still burning but with less flame or / and no flame but still burning, which accounts for 3 / 10 to 4 / 10 of the total weight of the waste biomass solid fuel entering the dry distillation gasification furnace, into the furnace chamber for generating activated carbon, and spray an appropriate amount of water mist or water vapor above 100°C, so that the residual carbon is quickly activated to form porous activated carbon; the "proper amount of spraying" mentioned above means that the activated carbon that meets the requirements of generating porous activated carbon, can extinguish the combustion of the residual carbon, and can also make the activated carbon that stays in the furnace chamber for no more than 60 minutes after extinguishing the combustion, finally have a moisture content of no more than 10% and the activated carbon out of the furnace will not burn again in the air; During the aforementioned "co-production of activated carbon" operation, the mixed combustible gas of carbon monoxide, hydrogen or carbon powder particles generated by burning the residual carbon and water is also introduced into the "pipeline" described in the aforementioned "gasification and combustion" paragraph.
7. The "harmless combined utilization of waste biomass solid fuel" as described in claim 5 can be implemented independently by one enterprise or by a number of enterprises in a coordinated division of labor or jointly.