JPWO2007083379A1 - Cement production raw fuel production facility, cement production plant, and waste cement raw fuel conversion method - Google Patents

Abstract

[PROBLEMS] To easily handle fermented products processed by a raw material production facility for cement production during a suspension period of the cement production facility attached with the raw material production facility for cement production without causing an increase in equipment cost. To. A raw fuel production facility for cement production 200 comprising an aerobic fermentation apparatus 202 for fermenting waste and a storage warehouse 10 for storing fermented products. By storing fermented products that have been fermented with an aerobic fermenter in a storage warehouse, the rotary kiln that uses the raw material for cement production manufactured at the raw material production facility for cement production stops operation and maintenance. In addition, the fermented product can be used as a raw material for cement production after resuming operation of the rotary kiln. A rotary kiln or the like can be used as an aerobic fermentation apparatus, and a sealed building such as a tent house can be used as a storage warehouse. In the storage warehouse, anaerobic fermentation of the fermented product can be suppressed. [Selection] Figure 1

Description

  The present invention relates to a raw material production facility for cement production for effectively treating waste such as municipal waste as a raw material for cement production, a cement production plant equipped with this facility, and waste such as municipal waste as raw material for cement. The present invention relates to a method for converting to fuel.

  Conventionally, since the amount of organic waste such as soot has increased, many proposals and attempts have been made regarding effective treatment methods and reuse methods. As one method, it has been proposed to ferment (compost) organic waste using a rotary fermenter. Patent Document 1 also describes that organic waste is fermented with a cement kiln or used as part of fuel in cement production.

  However, as described in Patent Document 1, it has been difficult to stably compost organic waste even if a cement kiln is simply used as a fermentation treatment apparatus. In addition, attempts have been made to use fermented products as raw materials for cement production, but it has been found that it is difficult to efficiently obtain high-quality fermented products.

  Therefore, in order to make effective use of cement kilns and other cement manufacturing equipment for waste disposal, the present applicant uses a rotary kiln or rotary dryer, and directly disposes wastes such as municipal waste stored in garbage bags as rotary kilns or rotary kilns. The method etc. which put into the dryer and fermented were proposed (refer patent documents 2 and 3).

  For example, as shown in FIG. 3, a cement manufacturing plant for carrying out this method has a cement manufacturing raw material manufacturing facility 400 attached to a cement manufacturing facility 300.

  The cement manufacturing facility 300 includes a burner 308 and a supply pump 310 for supplying liquid fuel such as heavy oil, and the like, and a rotary kiln (cement kiln) 302 for firing cement raw material and a cement clinker discharged from the rotary kiln 302 for cooling. A clinker cooler 303 cooled by a windmill 312, a burner 314, etc., a calcining furnace 304 for calcining cement raw material, and a suspension preheater 306 etc. in which cyclones 307 are stacked in multiple stages to preheat the cement raw material Composed.

  On the other hand, the raw fuel production facility 400 for cement production is roughly classified into a fermentation treatment apparatus 402, storage and fermentation treatment tanks 404 and 406, and fermentation treatment products in order to perform fermentation treatment (composting) of waste. Foreign matter separation / removal devices 408 to 418 and the like.

  At the inlet of the fermentation treatment apparatus 402, there are provided inlets 420, 422, and 424 for introducing municipal waste, sewage sludge, and a fermentation treatment product for return, and a fermentation gas outlet 426. The fermentation gas outlet 426 is provided with a ventilation wind turbine 419 as an exhaust means. On the other hand, a fermented product outlet 428 and an air blowing inlet 427 are provided at the outlet of the fermentation treatment apparatus 402, and an air blowing wind turbine 429 is provided as an air supply means in the air blowing inlet 427.

  The storage and fermentation processing tanks 404 and 406 are provided for further proceeding the fermentation in the fermentation processing apparatus 402 and temporarily storing the fermented processed product. The storage and fermentation processing tanks 404 and 406 are provided with a quantitative drawer at the bottom. The fermented processed product can be supplied to both the supply line 430 to the cement manufacturing facility 300 and the return line 432 to the fermenting apparatus 402.

  The devices 408 to 418 provided in the subsequent stage of the fermentation treatment apparatus 402 are for removing foreign substances from the fermentation treatment product, and include a magnetic separator 408 attached to the belt conveyor 409, a primary crusher 410, and a trommel. 412, a high Gaussian sorter 414, an aluminum sorter 416, and a secondary crusher 418.

  Next, a fermentation treatment method in a cement manufacturing factory having the above configuration will be described.

  In the fermentation treatment apparatus 402 of the raw fuel production facility 400 for cement production, municipal waste is introduced from the municipal waste input port 420, and sewage sludge is added from the municipal waste input port 422 in addition to the municipal waste. Further, a part of the fermented product is returned from the storage and fermentation processing tank 406 to the fermenting device 402 through the line 432. This is for the purpose of stabilizing the cells in the fermentation treatment apparatus 402 and stabilizing the quality of the fermentation treatment product.

  The waste moves in the fermentation treatment apparatus 402, and after 3 days, the fermentation treatment product is taken out from the outlet 428. During fermentation, fermentation proceeds by a mechanism such as an aerobic decomposition action of easily decomposable components by fermenting bacteria that inhabit the natural world on the inlet side. On the other hand, during the fermentation process, from the fermentation gas outlet 426, the fermentation gas in the fermentation apparatus 402 is drawn out by the ventilation windmill 419, introduced into the calcining furnace 304 or the like, and ammonia generated in the fermentation process is decomposed. Deodorize exhaust gas. In addition, air is supplied from the air blowing port 427 by the air blowing windmill 429, the aerobic condition in the fermentation treatment apparatus 402 is maintained, and fermentation by aerobic bacteria is maintained.

  The fermented processed product obtained as described above is removed by using a magnetic separator 408, a high Gaussian sorter 414, and an aluminum sorter 416 to remove iron, stainless steel, and aluminum. Further, the fermented processed product is adjusted to an appropriate particle size by the primary crusher 410 and the secondary crusher 418.

  The fermented processed product is sent as raw material fuel for cement production to bucket-type storage and fermentation processing tanks 404 and 406 by bucket elevators 442 and 443 and circulated by a circulation system. That is, belt conveyors 444 and 446 are provided below the tanks 404 and 406, and the fermentation processing products partially taken out from these are vertically transported by the bucket elevator 448, and again the storage and fermentation processing tank 404, It returns to 406. Thereby, an aerobic state is maintained. The fermented processed product is supplied as a raw material for cement production from the line 430 to the cement manufacturing facility 300 via the belt conveyor 450, or is returned to the fermenting processing apparatus 402 via a part of the line 432.

  On the other hand, the cement production facility 300 produces cement in parallel with the operation of the cement production raw fuel production facility 400. The cement raw material is preheated in each cyclone 307 in the suspension preheater 306, calcined in the calcining furnace 304, and calcined in the rotary kiln 302. As a fuel for firing in the rotary kiln 302 or a fuel for calcining in the calcining furnace 304, the raw material for cement production obtained by the raw material production facility for cement production 400 is stored from the storage and fermentation tank 406. Through the line 430, the rotary kiln 302 is supplied to the kiln bottom or the calcining furnace 304.

Japanese Unexamined Patent Publication No. 52-97270 Japanese Patent Laid-Open No. 2001-191059 Japanese Unexamined Patent Publication No. 2001-191060

  The cement production facility 300 to which the raw fuel production facility 400 for cement production is attached is suspended for about 2 to 3 weeks at a rate of 2 to 3 times a year due to maintenance and inventory adjustment of the rotary kiln 302 and the like. It is normal. However, even during the suspension of the cement production facility 300, the raw material production facility 400 for cement production still accepts waste and conducts fermentation treatment. Until the cement production facility 300 resumes operation, it is necessary to temporarily store it in the storage and fermentation tanks 404 and 406 of the raw material production facility 400 for cement production.

  However, as described above, since the suspension of the cement production facility 300 is continued for about 2 to 3 weeks, the amount of fermentation processed products to be temporarily stored in the storage and fermentation processing tanks 404 and 406 becomes large. In order to increase the storage capacity of the processing tanks 404 and 406, it is necessary to make them large-scale, and there is a problem that the equipment cost increases.

  Therefore, the present invention has been made in view of the problems in the conventional raw material production facility for cement production and the like, and is provided with a raw material production facility for cement production without causing an increase in equipment cost. Another object of the present invention is to provide a raw material production facility for cement production that can easily handle a fermented product processed by the raw material production facility for cement production during the suspension period of the cement production facility.

  The present invention is a raw fuel production facility for cement production, comprising an aerobic fermentation treatment device for fermenting waste, and a storage warehouse for storing fermentation processed products fermented by the aerobic fermentation treatment device. It is characterized by providing.

  Here, as the aerobic fermentation treatment device, a rotary kiln type, a scoop type, an auger type, a paddle type device, etc. used for composting organic waste can be used, and the rotary kiln with the lining brick removed. Alternatively, a rotary dryer can be used. Moreover, as a storage warehouse, closed buildings, such as a tent house, can be used, for example, and materials, such as an outer wall and a ceiling, are not ask | required.

In the present specification, “waste” includes the following objects to be treated.
(1) Organic sludge: Sewage sludge, human waste sludge (septic tank sludge, agricultural settlement wastewater sludge), food industry wastewater sludge, blue-green sludge, etc. are included in this category.
(2) Food processing residue: Beer ground, shochu ground, okara (tofu ground), sugar residue, fruit juice residue, coffee grounds, tea grounds, livestock residue, etc. are included in this category.
(3) Forest residue, plant residue: Pulp waste liquor, bark, sawdust, chip dust, pruned branches, bagasse, rice husks, straws, etc. are included in this category.
(4) Garbage: Garbage (raw garbage), city-collectable combustible garbage, business-related garbage, etc. are included in this category.
(5) Livestock waste: Livestock manure, bird droppings, etc. are included in this category.
(6) Marine waste: Fish iliac, dead fish, etc. are included in this category.
(7) A mixture of two or more of those listed above is also included in the concept of waste.

  And according to this invention, since the fermented processed goods fermented with the aerobic fermentation apparatus can be stored in a storage warehouse, the raw fuel for cement manufacture manufactured with the raw fuel manufacturing facility for cement manufacture is used. Even when the rotary kiln is shut down due to maintenance, etc., fermented products obtained by fermenting the received waste can be used as raw fuel for cement production after restarting the rotary kiln, without causing an increase in equipment costs. , The received waste can be processed reliably.

  In the storage warehouse of the raw fuel production facility for cement production, anaerobic fermentation accompanied by generation of methane, hydrogen sulfide and the like of the fermented product can be suppressed. It is desirable that the maximum deposition height of the fermented processed product in the storage warehouse is 2 m or more and 5 m or less. The volume of the fermented processed product stored in the storage warehouse with respect to the total volume of the storage can be 10% or more and 40% or less. In normal compost equipment, there is an aeration equipment as a secondary fermentation equipment, but in the raw fuel production equipment for cement production, there is no need for secondary fermentation, so the equipment cost was reduced by eliminating the air blowing equipment. In this case, if it is as it is, it will become anaerobic fermentation accompanying generation | occurrence | production of combustible gas, such as methane, Since the dangers, such as an explosion, become high, it is necessary to suppress it. By setting the maximum deposition height of the fermented product to 5 m or less, anaerobic fermentation inside the deposition layer can be more effectively suppressed.

  Furthermore, a ventilation device for air in the warehouse of the storage warehouse for removing odors and a small amount of flammable gas such as methane generated during storage from the fermented product and filling the warehouse, and ventilation air It is preferable to provide a deodorizer for processing. The ventilation facility may be anything that discharges the air in the warehouse, such as a suction fan, to the outdoors, and as the ventilation amount, it is preferable to ventilate the entire volume of the storage warehouse at least three times per hour. As a deodorizer system, various deodorizers used for composting equipment such as a plasma system, an ozone system, an adsorption system, a chemical cleaning system, a combustion system, a biological deodorization system, and the like can be applied. The storage warehouse may be provided with a detector that monitors the concentration of combustible gas in the warehouse.

  In addition, in the storage warehouse, when the fermented product is used as a part of raw fuel in a cement production kiln, it is possible to store a usage amount of 1 to 30 days in the cement production kiln. Is preferred. As a result, it is possible to temporarily store all fermented products that could not be processed within the suspension period due to normal maintenance, inventory adjustment, and the like.

  Furthermore, the present invention is a cement manufacturing factory, characterized in that the raw fuel manufacturing facility for cement manufacturing is attached. When the cement manufacturing plant is equipped with the raw material manufacturing facility for cement manufacturing, even if the rotary kiln of the cement manufacturing plant stops operation due to maintenance, etc., the fermented processed products obtained by fermenting the received waste are stored in the storage warehouse. In addition, after the operation of the rotary kiln is resumed, the fermented processed product stored in the storage warehouse can be used as a raw material for cement production, so that the received waste can be reliably processed. The raw fuel production facility for cement production and the storage warehouse do not have to be in the same site as the cement production facility.

  Further, the present invention is a method of converting waste into raw cement fuel, fermenting waste with an aerobic fermentation apparatus, storing the fermented fermented product in a storage warehouse, It is characterized in that it is carried into a cement production facility, and the fermented processed product carried into the cement production facility is used as a raw material fuel for cement production.

  According to this method of converting waste into raw cement fuel, the raw material for cement production produced in the raw fuel production facility for cement production by storing the fermented product fermented with an aerobic fermentation apparatus in a storage warehouse. Even if the rotary kiln that uses the machine stops operation due to maintenance, etc., the fermented product obtained by fermenting the accepted waste can be used as raw material for cement production after the rotary kiln resumes operation. It can be processed reliably.

  In the method of converting waste into raw cement fuel, it is preferable that the waste is subjected to an aerobic fermentation treatment for 12 hours or more in the aerobic fermentation apparatus. Moreover, in the said storage warehouse, the anaerobic fermentation of the said fermentation processed goods can be suppressed, The volume ratio of the said fermentation processed goods stored in the said storage warehouse with respect to the said storage warehouse whole volume is 10% or more, 40% or less And the accumulation height of the said fermentation processed goods in the said storage warehouse can be 2 m or more and 5 m or less.

  As described above, according to the present invention, processing is performed by the raw material production facility for cement production during the suspension period of the cement production facility provided with the raw material production facility for cement production without causing an increase in facility cost. It is possible to easily handle the fermented processed product.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a cement manufacturing plant provided with a raw fuel manufacturing facility 200 for manufacturing cement according to the present invention. The cement manufacturing facility 100 of this plant is roughly divided into a burner 108 and a supply pump 110 for supplying liquid fuel. In order to preheat the cement raw material, a rotary kiln 102 for firing the cement raw material, a clinker cooler 103 for cooling the cement clinker by the cooling wind turbine 112, a burner 114, and the like, and a calcining furnace 104 for calcining the cement raw material. The suspension preheater 106 and the like in which the cyclones 107 are stacked in multiple stages.

  On the other hand, since the raw fuel manufacturing facility 200 for cement manufacturing performs fermentation processing of waste, a fermentation processing device 202, a storage and fermentation processing tank 204, and a separation / removal device 208- 218, and a tent house 10 as a storage warehouse for storing the fermented product when the cement production facility 100 is stopped. This tent house 10 is a characteristic part of the present invention.

  As shown in FIG. 2, the tent house 10 has a number of bone members 11, a covering member 12 supported by the bone members 11, an entrance / exit 13 of a vehicle, etc., and a plasma type deodorizing treatment for ventilation air of the tent house 10. Machine 14 and the like.

The tent house 10 can suppress anaerobic fermentation of the fermented processed product in the storage and fermentation processing tank 204, and can store a fermented processed product of, for example, about 1200 t (3400 m ³ ). An area of 1100 m ² , a total volume of 15000 m ³ , and a tent house 10 for the fermented processed product to be stored has a total volume of about 20%.

  In addition, as in the conventional raw material production facility 400 for cement production shown in FIG. 3, the input for introducing the municipal waste, sewage sludge, and the fermented product for the return into the entrance of the fermentation treatment apparatus 202 in FIG. The ports 220, 222, and 224 and the fermentation gas outlet 226 are provided. The fermentation gas outlet 226 is provided with a ventilation wind turbine 219. On the other hand, a fermented product outlet 228 and an air blowing port 227 are provided at the outlet of the fermentation treatment apparatus 202, and an air blowing windmill 229 is provided at the air blowing port 227. In addition, it is not essential to input the sewage sludge and the returned fermented processed product, and only the municipal waste can be input to the fermenting processing apparatus 202.

  The storage / fermentation processing tank 204 is provided for further proceeding the fermentation in the fermentation processing apparatus 202 and temporarily storing the fermented processed product. The storage / fermentation processing tank 204 includes a quantitative drawer at the bottom, and a fermentation process from the quantitative drawer. The product can be supplied to any of a supply line 230 to the cement manufacturing facility 100, a return line 232 to the fermentation treatment apparatus 202, and a storage line 250 to the tent house 10.

  The devices 208 to 218 provided at the subsequent stage of the fermentation treatment apparatus 202 are for removing foreign substances from the fermentation treatment product, and include a magnetic separator 208 attached to the belt conveyor 209, a primary crusher 210, and a trommel. 212, a high Gaussian sorter 214, an aluminum sorter 216, and a secondary crusher 218.

  Next, a method for converting waste into a cement raw fuel in a cement manufacturing plant having the above-described configuration will be described.

  In the fermentation treatment apparatus 202 of the raw fuel manufacturing facility 200 for cement production, municipal waste is introduced from the municipal waste inlet 220, and sewage sludge is introduced from the municipal waste addition port 222 in addition to the municipal waste. Further, a part of the fermented product is returned from the storage and fermentation processing tank 204 to the fermenting apparatus 202 through the return line 232. This is for the purpose of stabilizing the cells in the fermentation treatment apparatus 202 and stabilizing the quality of the fermentation treatment product.

  The waste moves in the fermentation treatment apparatus 202, and after 3 days, the fermentation treatment product is taken out from the fermentation product outlet 228. During fermentation, fermentation proceeds by a mechanism such as an aerobic decomposition action of easily decomposable components by fermenting bacteria that inhabit the natural world on the inlet side. On the other hand, during the fermentation process, from the fermentation gas outlet 226, the fermentation gas in the fermentation apparatus 202 is drawn out by the ventilation windmill 219, introduced into the calcining furnace 104, etc., and ammonia generated in the fermentation process is decomposed, Deodorize exhaust gas. In addition, air is supplied from the air blowing port 227 by the air blowing windmill 229, the aerobic condition in the fermentation treatment apparatus 202 is maintained, and fermentation by aerobic bacteria is maintained.

  The fermented processed product obtained as described above is removed by iron, stainless steel, and aluminum by the magnetic separator 208, the high Gaussian separator 214, and the aluminum separator 216 to recycle them. Further, the fermented processed product is adjusted to an appropriate particle size by the primary crusher 210 and the secondary crusher 218.

  The fermented processed product is sent to the storage / fermented processing tank 204 by the bucket elevators 242 and 243 as raw material fuel for cement production, and is circulated by the circulation system. That is, belt conveyors 244 and 246 are provided under the tank 204, and the fermentation processed products partially taken out from these are vertically transported by the bucket elevator 248 and circulated again to the storage and fermentation processing tank 204. The Thereby, an aerobic state is maintained. The fermented processed product is supplied from the supply line 230 to the cement manufacturing facility 100 as a raw material for cement manufacturing via the belt conveyor 246, or is returned to the fermenting processing apparatus 202 via a partial return line 232.

  On the other hand, the cement manufacturing facility 100 manufactures cement in parallel with the operation of the cement manufacturing raw fuel manufacturing facility 200. Each cyclone 107 in the suspension preheater 106 performs preheating of the cement raw material, calcining in the calcining furnace 104, and calcining in the rotary kiln 102. The raw fuel for cement production obtained by the raw fuel production facility 200 for cement production is supplied from the storage and fermentation tank 204 as the fuel for firing in the rotary kiln 102 or the fuel for calcining in the calciner 104. It is supplied to the kiln bottom of the rotary kiln 102 or the calcining furnace 104 through the line 230.

  Next, an operation when the operation of the rotary kiln 102 of the cement manufacturing facility 100 is stopped will be described.

  As shown in FIG. 1, when the operation of the rotary kiln 102 is stopped, the fermented processed product fermented in the fermenting apparatus 202 and the storage and fermentation processing tank 204 is passed through the belt conveyor 246 and the supply line 230. Therefore, the fermented processed product is transferred from the belt conveyor, the belt conveyor 246, etc. of the bucket elevator 243 to the tent house 10 through the storage line 250. Brought about. Further, the fermented product can be taken out from the belt conveyor, the belt conveyor 246, and the like at the front stage of the bucket elevator 243, loaded on a dedicated transport vehicle, and transported to a tent house.

  Then, the fermented processed product is loaded in the tent house 10 at a height of about 2 m. The tent house 10 ventilates the entire volume at a rate of 3 times per hour. Further, the ventilation air is processed by the plasma type deodorizer 14.

  When the operation of the rotary kiln 102 of the cement production facility 100 is resumed, the fermented product in the tent house 10 is supplied from the tent house 10 to the cement production facility 100 as a raw material for cement production. At this time, a route for supplying the cement production facility 100 directly from the tent house 10 may be provided, or the supply line 230 shown in FIG.

It is a flowchart which shows the cement manufacturing factory where the raw fuel manufacturing equipment for cement manufacture concerning this invention was attached. It is a figure which shows the tent house of the raw fuel manufacturing equipment for cement manufacture of FIG. 1, Comprising: (a) is a front view, (b) is a perspective view. It is a flowchart which shows the cement manufacturing factory where the conventional raw fuel manufacturing equipment for cement manufacture was attached.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tent house 11 Bone member 12 Cover member 13 Entrance / exit port 14 Plasma type deodorizer 20 Container 21 Gas sampling port 22 Fermentation processed product 100 Cement manufacturing equipment 102 Rotary kiln 103 Clinker cooler 104 Calciner 106 Suspension preheater 107 Cyclone 108 Burner 110 Supply pump 112 Cooling windmill 114 Burner 200 Raw material production facility 202 for cement production Fermentation processing device 204 Storage and fermentation processing tank 208 Magnetic separator 209 Belt conveyor 210 Primary crusher 212 Trommel 214 High Gauss sorter 216 Aluminum sorter 218 Secondary crusher 219 Ventilation wind turbine 220 Municipal waste inlet 222 Sewage sludge inlet 224 Fermented product inlet 226 for the return portion Fermentation gas outlet 227 Air inlet 228 Fermentation outlet 229 Air inlet Windmill 230 supply line 232 return line 242 bucket elevators 243 bucket elevator 244 belt conveyor 246 belt conveyor 248 bucket elevator 250 storage line

Claims (15)

  An aerobic fermentation apparatus for fermenting waste, and a storage warehouse for storing the fermented fermented product, a raw fuel production facility for cement production.   The raw fuel production facility for cement production according to claim 1, wherein a rotary kiln type fermentation device is used as the aerobic fermentation device.   3. The raw fuel production facility for producing cement according to claim 1, wherein a rotary kiln or a rotary dryer from which a lining brick is removed is used as the aerobic fermentation apparatus.   The raw fuel facility for producing cement according to claim 1, 2 or 3, wherein the storage warehouse is a closed building.   The raw fuel production facility for cement production according to any one of claims 1 to 4, wherein anaerobic fermentation of the fermented product is suppressed in the storage warehouse.   The raw fuel production facility for cement production according to any one of claims 1 to 5, wherein a maximum deposition height of the fermentation processed product in the storage warehouse is 2 m or more and 5 m or less.   The raw fuel production facility for cement production according to any one of claims 1 to 6, comprising a ventilator for ventilating the air in the storage warehouse and a deodorizer for treating the air ventilated by the ventilator. .   The raw fuel production facility for cement production according to any one of claims 1 to 7, wherein the storage warehouse is provided with a detector for monitoring the concentration of combustible gas in the air in the warehouse.   In the storage warehouse, when the fermented product is used as a part of raw fuel in a cement production kiln, the use amount of the cement production kiln for 1 day or more and 30 days or less can be stored. The raw fuel production facility for cement production according to any one of claims 1 to 8.   A cement production plant, comprising the raw fuel production facility for cement production according to any one of claims 1 to 9. Fermentation of waste in an aerobic fermentation device,
The fermented processed product is stored in a storage warehouse,
Bring the stored items to a cement manufacturing facility,
A method for converting waste into a cement raw fuel, characterized in that the fermented product carried into the cement manufacturing facility is used as a raw material for cement production.   The method for converting waste into a cement raw fuel according to claim 11, wherein the waste is subjected to an aerobic fermentation treatment for 12 hours or more in the aerobic fermentation apparatus.   The method of converting waste into cement raw fuel according to claim 11 or 12, wherein anaerobic fermentation of the fermented product is suppressed in the storage warehouse.   The waste cement raw material according to claim 11, 12 or 13, wherein a volume ratio of the fermented processed product stored in the storage warehouse to a total volume of the storage warehouse is 10% or more and 40% or less. Fueling method.   The method for converting waste into cement raw fuel according to any one of claims 8 to 11, wherein a deposition height of the fermented processed product in the storage warehouse is 2 m or more and 5 m or less.

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