TW202128299A - Manufacturing system for recycled solid fuel and method thereof with which humidity sensing and humidity control are performed to avoid reduction of burning efficiency of fuel caused by water content - Google Patents

Abstract

Provided are a manufacturing system for recycled solid fuel and the method thereof. The method comprises: a sieving step for separating sand, magnetic metal, non-magnetic metal or glass within at least a raw material from these raw materials; a sorting step for performing a scanning on the raw material that has been separated from sand, metal substances or glass to obtain a heating value of the raw material, and dividing the raw material into a plurality of groups based upon the scanned heating value; a material storing step for respectively storing the raw materials of the plurality of groups in a plurality of raw material storage bins respectively corresponding to the plurality of groups; a compounding step and a forming step, wherein the compounding step calculates respective feed quantity of the raw materials of the plurality of groups based upon an assigned heating value and respectively feeds the raw materials into the forming equipment from the plurality of raw material storage bins according to the calculated feed quantity, and the forming step make the fed raw materials into a recycled solid fuel.

Description

Solid recovery fuel manufacturing system and method

The present invention relates to a solid recovered fuel (Solid Recovered Fuel, SRF) manufacturing system and method, in particular to the use of textile materials, waste motor vehicle shredder residues (Automobile Shredder Residue, ASR), waste plastics and scraps to make solid recovery Fuel manufacturing system and method.

With the advancement of science and technology, the manufacture and use of vehicles have become more and more common in a modern society. The following questions are how to dispose of a large number of vehicles after they are scrapped, and how to recycle the processed residues into resources and energy. Use it to minimize the impact of waste motor vehicles on the environment, while practicing the spirit of sustainable development and circular economy.

The composition of the scrap motor vehicle residue (ASR) is quite complex, including foam, plastic (PE, PP), rubber (rubber, acrylonitrile), synthetic resin (PU, PA, epoxy resin, styrene compound), Fiber (textile, waste paper, wood), metal, glass, dust, paint, and other impurities are difficult to recycle residues. Nowadays, the main method of processing ASR is incineration or burying. However, the complex characteristics of the material make the ASR heat value uneven. Considering the operation and service life of the incinerator, the industry is not willing to treat ASR.

In addition, for other domestic wastes or industrial wastes, such as textile materials and waste plastics, because modern products emphasize multi-functional design, composite materials are often used to make various products. Although composite materials can bring diversified functions to products, when their service life is over and waste disposal is required, the problem will be faced is that the composition of composite materials is complex, which is not conducive to classification and recycling. Therefore, in the end, only It can be disposed of by incineration or landfill.

In addition, for the leftovers (excess materials, leftovers) produced during the processing of the factory, such as paper, textile or plastic leftovers, when they have no recycling value or the recycling cost is too high, they can only be used with The above-mentioned waste is treated in the same way as incineration or landfill treatment.

In view of the fact that landfill disposal will cause secondary pollution to soil and water quality, and minimizing waste and reducing the amount of landfilled are the main environmental trends today. At present, there is known a method that can recycle domestic and business wastes, crush them and screen out combustibles, and then compact them into Refuse Derived Fuel (RDF-5) to realize the conversion of waste into renewable energy. Technology.

However, since the composition of such waste-derived fuels is unknown and complex, its calorific value cannot be estimated, and it has the disadvantage of inconvenience in use, resulting in low market inquiries.

In view of the problems encountered in the prior art, there is a need for a solid recovery fuel manufacturing system and method. The textile materials, ASR and waste plastics are screened to separate incombustible substances, and the sorting is performed to obtain the calorific value information of the raw materials and combine them with leftovers. (For example, scraps of paper, textiles or plastics) are stored together in groups, and raw materials with a specific calorific value range are selected to make solid recovered fuels so that the calorific value of solid recovered fuels meets the fuel calorific value required by customers. As a result, various wastes in modern life are reused as resources and energy to reduce the amount of waste buried, and provide renewable energy that can replace fossil fuels, in line with the world's green new energy development trend.

Therefore, the present invention provides a solid recovery fuel manufacturing system, comprising: a screening device for separating sand, magnetic metal, non-magnetic metal or glass in at least one of the raw materials from the raw materials; a sorting device is provided in the screening device Afterwards and connected to it, the sorting device includes a scanning unit and a grouping unit, wherein the scanning unit scans the separated sand, metal or glass materials to obtain the calorific value of the raw materials, and the grouping unit The raw materials are divided into a plurality of groups according to the scanned calorific values; the storage device is arranged after the sorting device, and includes a plurality of raw material storage bins respectively corresponding to the plurality of groups, the plurality of The raw material storage silos are respectively connected with the sorting equipment, and the plurality of raw material storage silos respectively store the plurality of groups of the raw materials; the blending equipment is arranged after the storage device and connected to the plurality of raw materials In each of the storage bins, the blending device includes a calculation unit and a feeding unit; and a molding device, which is arranged after and connected to the blending device. Wherein, the calculation unit calculates the respective feed quantities of the raw materials of the plurality of groups according to a designated calorific value; the feed unit calculates the respective feed quantities from the plurality of raw material storage bins according to the calculated feed quantities. These raw materials are fed into the molding equipment; and the molding equipment converts the fed raw materials into a solid recycled fuel.

In a preferred embodiment, the plurality of groups includes a first group, a second group, and a third group, and the grouping unit divides the raw materials into respective ones corresponding to the first group according to the scanned calorific values. The first raw material, the second raw material and the third raw material of one group, the second group and the third group; and the plurality of raw material storage bins include a first raw material storage bin and a second raw material storage bin And a third raw material storage bin for separately storing the first raw material, the second raw material and the third raw material. Wherein, the calorific value of the first raw material of the first group is 3000-4000 kcal/kg; the calorific value of the second raw material of the second group is 4000-5000 kcal/kg; and the third group The calorific value of the third raw material is 5000～6000 kcal/kg.

The solid recovery fuel manufacturing system of the present invention further includes at least one of the following: a shredding device, which is arranged in front of and connected to the screening device, and shreds the raw materials into small pieces; and a crushing device and a pulverizing device are arranged in The sorting device and the storage device, the storage device and the blending device, or the blending device and the molding device are connected to each other, and the crushing device is arranged after the crushing device and connected to the crushing device. Wherein, the crushing equipment crushes the raw materials into a first size or smaller; and the crushing device crushes the raw materials into a second size smaller than the first size.

In a preferred embodiment, the storage device further comprises at least one additive storage silo for storing at least one additive, wherein the at least one additive storage silo is selected from the group consisting of a desulfurizer storage silo and a dechlorination agent storage silo , Deacidification agent storage silo, mercury removal agent storage silo, and heavy metal chelating agent storage silo; and the at least one additive is selected from the group consisting of desulfurizers, dechlorination agents, deacidification agents, and mercury removal agents And a heavy metal chelating agent; and the compounding device is further connected to the at least one additive storage bin. Wherein, the feeding unit feeds the raw materials and the at least one additive into the molding equipment from the plurality of raw material storage bins and the at least one additive storage bin respectively according to the calculated feed amounts; and The molding equipment makes the fed raw materials and the at least one additive into a solid recycled fuel.

The solid recovery fuel manufacturing system of the present invention further includes: a humidity sensing unit connected to and sensing the humidity of each of the raw material storage bins; and a humidity control unit connected to the humidity sensing unit and the raw materials Each of the storage bins controls the raw material storage bins to be below a predetermined humidity according to the sensed humidity.

In a preferred embodiment, the screening equipment further comprises at least one of the following: sand and soil screening equipment to separate sand and soil in the raw materials; magnetic metal screening equipment to separate magnetic metals in the raw materials; non-magnetic metal screening Equipment to separate non-magnetic metals in these raw materials; and glass screening equipment to separate glass in these raw materials.

The present invention provides a method for manufacturing a solid recycled fuel, which includes: a screening step, separating sand, magnetic metal, non-magnetic metal or glass in at least one raw material from the raw materials; a sorting step, including a scanning step and a grouping step, Wherein, in the scanning step, the raw materials of the separated sand, metal or glass are scanned to obtain the calorific value of the raw materials, and in the grouping step, the calorific values of the scanned materials are scanned. The raw materials are divided into a plurality of groups; the storage step is to store the raw materials of the plurality of groups in a plurality of raw material storage bins respectively corresponding to the plurality of groups; the blending step includes a calculation step and a feeding step ; And the forming steps. Wherein, in the calculation step, the respective feed amounts of the raw materials of the plurality of groups are calculated according to a designated calorific value; in the feeding step, the calculated feed amounts are calculated from the plurality of The raw material storage bin feeds the raw materials into the forming equipment; and in the forming step, the fed raw materials are made into a solid recycled fuel.

The manufacturing method of solid recovered fuel of the present invention further includes at least one of the following: a shredding step, which shreds the raw materials into small pieces before the screening step; and a crushing step and a crushing step, in the sorting step and Between the storage step, between the storage step and the blending step, or between the blending step and the forming step, and the crushing step is after the crushing step. Wherein, in the crushing step, the raw materials are crushed into a first size or less; and in the crushing step, the raw materials are crushed into a second size or less smaller than the first size.

In a preferred embodiment, in the storing step, at least one additive is further stored in at least one additive storage silo, wherein the at least one additive storage silo is selected from the group consisting of desulfurizing agent storage silo, dechlorination Agent storage silo, deacidification agent storage silo, mercury removal agent storage silo, and heavy metal chelating agent storage silo; and the at least one additive is selected from the group consisting of desulfurizers, dechlorination agents, and deacidification agents , Mercury removal agents and heavy metal chelating agents. Wherein, in the feeding step, the raw materials and the at least one additive are respectively fed to the molding equipment from the plurality of raw material storage bins and the at least one additive storage bin according to the calculated feed amounts In; and in the forming step, the raw materials fed and the at least one additive are made into a solid recycled fuel.

The manufacturing method of solid recovered fuel of the present invention further includes: a humidity sensing step, which senses the humidity in the raw material storage bins; and a humidity control step, which includes the raw material storage bins based on the sensed humidity. Control below a predetermined humidity.

In a preferred embodiment, the screening step further includes at least one of the following: a sand screening step to separate sand and soil in the raw materials; a magnetic metal screening step to separate magnetic metals in the raw materials; non-magnetic metal screening In the step, the non-magnetic metals in the raw materials are separated; and in the glass screening step, the glass in the raw materials is separated.

As mentioned above, in the present invention, the raw materials composed of textile materials, ASR, waste plastics and leftovers are separated from the non-combustible components through the screening equipment/step; then, the combustible substances in the raw materials are passed through the sorting equipment/ The steps are divided into groups with different calorific value ranges and stored in the storage bin; then, according to the fuel calorific value specified by the customer, through the deployment equipment/steps, calculate the respective feed amounts of the raw materials with different calorific value ranges; finally, through The molding equipment converts the previously prepared and fed raw materials into solid recycled fuel so that the heating value of the solid recycled fuel meets the needs of customers.

Through the screening equipment/steps, the incombustible components in the solid recycled fuel can be reduced, so as to avoid reducing the combustion efficiency of the solid recycled fuel, or causing the solid recycled fuel to produce excessive suspended particles and bottom slag after combustion. In addition, in the non-combustible substances separated through the screening equipment/steps, the sand can be buried after proper treatment, and the metal substances and glass can be recycled for resource reuse

In addition, desulfurizers, dechlorination agents, deacidification agents, mercury removal agents and/or heavy metal chelating agents can be further added to the solid recycled fuel to control the sulfur, chlorine, acidic substances, The content of mercury and heavy metals prevents pollution.

In addition, humidity sensing and humidity control can be carried out in the storage equipment/steps to prevent the moisture in it from causing a reduction in the combustion efficiency of the solid recovery fuel of the present invention. In addition, the gas collected during the humidity control process can also be used or sold as fuel to further enhance the economic value of the manufacturing system/method of the present invention.

In the following description of the present invention, a detailed description of the prior art will be omitted to the extent that a person with ordinary knowledge in the relevant technical field can easily understand it.

The present invention provides a solid recycled fuel manufacturing system and method, in which textile materials, ASR and waste plastics are screened to separate incombustible substances, and the sorting is performed to obtain information on the calorific value of the raw materials and store them in groups with leftovers , And select raw materials with a specific calorific value range to make solid recovered fuel so that the calorific value of the solid recovered fuel meets the fuel calorific value required by the customer. As a result, various wastes in modern life are reused as resources and energy to reduce the amount of waste buried, and provide renewable energy that can replace fossil fuels, in line with the world's green new energy development trend.

As shown in FIG. 1, a solid recovery fuel SRF manufacturing system according to an embodiment of the present invention includes: a shredding device 10, a screening device 20, a sorting device 30, a storage device 40, a humidity sensing unit 51, and humidity The control unit 52, the blending device 60, the crushing device 71 and the crushing device 72, and the forming device 80. Hereinafter, various equipment and units in the manufacturing system of the present invention will be described in detail.

＜Shredding equipment 10＞

First, in the case where the raw material RM containing textile materials, ASR and waste plastics contains large bulky waste, the shredding device 10 (for example: shredder) can be installed in front of the screening device 20 and combined with it The screening device 20 (described later) is connected to use the shredding device 10 to shred the raw material RM into small pieces of waste; or, when the volume of the waste contained in the raw material RM is less than a predetermined volume (for example, it can be effectively In the case of using the screening device 20 or the sorting device 30 to screen or sort the volume of the raw material RM), the shredding device 10 may not be provided, and the screening device 20 may be used directly to screen the raw material RM. ＜Screening equipment 20＞

Because in the raw material RM of the present invention, in addition to containing textile fibers (such as man-made fibers and natural fibers), waste plastics and ASR foam, plastics, rubber, synthetic resins, fibers (textiles, wood), paint, etc. are combustible , In addition to the components with calorific value and fuel value, it also contains components that have no fuel value such as sand, metal, glass, etc. Therefore, in order to avoid components that do not have fuel value, the combustion efficiency of solid recovery fuel is reduced, or the solid recovery Excessive suspended particulates and bottom dross are generated after the fuel is burned. At the same time, in order to further recover and reuse some of the above components with no fuel value, the manufacturing system of the present invention is provided with a screening device 20 to remove the raw material RM. The sand, magnetic metal, non-magnetic metal or glass are separated from the raw material RM.

Specifically, the screening equipment 20 may include, but is not limited to, at least one of the following: sand and soil screening equipment (for example: screens, winnowing equipment), which separates the sand and soil in the raw material RM; and magnetic metal screening equipment (for example: magnetic separator) , To separate the magnetic metals (such as iron, cobalt or nickel) in the raw material RM; non-magnetic metal screening equipment (such as: eddy current separator) to separate the non-magnetic metals in the raw material RM; and glass screening equipment (such as : Infrared sorting machine) to separate the glass in the raw material RM.

Among the components screened and separated by the screening device 20, the sand with no reuse value can be buried or other waste treatment after proper treatment; while the magnetic metal, non-magnetic metal and glass with the reuse value can be recycled Reuse of resources.

＜Sorting equipment 30＞

After the screening equipment 20 is used to separate the components with no fuel value in the raw material RM, the remaining components with fuel value (for example: textile, PE, PP, foam, rubber, etc.) have different calorific values. Without knowing its calorific value, the combustion efficiency of solid recovered fuel SRF cannot be estimated. Therefore, in order to control the calorific value of the solid recovered fuel SRF of the present invention, the sorting device 30 can be arranged after the screening device 20 and connected to the screening device 20.

The sorting device 30 may include a scanning unit 31 and a grouping unit 32. The scanning unit 31 can scan the separated sand, metal or glass raw materials RM to obtain the calorific value of the raw materials RM; and, the grouping unit 32 The raw materials RM can be divided into a plurality of groups according to the calorific value scanned by the scanning unit 31.

For example, the plurality of groups may include, but are not limited to, the first group G1, the second group G2, and the third group G3. The grouping unit 32 divides the raw materials RM into the first raw material RM1, the second raw material RM2, and the first raw material RM1 corresponding to the first group G1, the second group G2, and the third group G3 according to the calorific value scanned by the scanning unit 31. Three raw materials RM3.

In a preferred embodiment, the calorific value of the first raw material RM1 of the first group G1 is 3000-4000 kcal/kg; the calorific value of the second raw material RM2 of the second group G2 is 4000-5000 kcal/kg; And the calorific value of the third raw material RM3 of the third group G3 is 5000～6000 kcal/kg. Therefore, by grouping the raw materials RM with different calorific values through the sorting device 30, the calorific value of the solid recovered fuel SRF of the present invention can be controlled and estimated.

<Storage equipment 40, humidity sensing unit 51, and humidity control unit 52>

After the sorting device 30 is used to group the raw materials RM with different calorific values, the storage device 40 may be arranged after the sorting device 30 to store the grouped raw materials RM.

The storage device 40 may include a plurality of raw material storage bins respectively corresponding to the plurality of groups, the plurality of raw material storage bins are respectively connected to the sorting device 30, and the plurality of raw material storage bins respectively store the plurality of raw material storage bins. The raw material RM of each group.

For example, the plurality of raw material storage silos may include a first raw material storage silo 41, a second raw material storage silo 42, and a third raw material storage silo 43 to store the first raw material RM1, the second raw material RM2, and the third raw material RM2, respectively. Raw material RM3.

Generally speaking, the components of the leftovers produced by the factory processing are simple and clear, and their calorific value is known. Therefore, unless the composition of the scraps is complicated, the scraps and the above-mentioned textile materials, ASR and waste plastics need to be processed through the shredding equipment 10, the screening equipment 20 and the sorting equipment 30. Generally speaking, , The leftovers can be directly stored in the corresponding raw material storage bin according to their calorific value (preferably, homogenization treatment can be carried out first), and combined with the textile material and ASR that have been shredded, screened and sorted Together with waste plastics, it is made into solid recycled fuel SRF.

In addition, in order to control and adjust the humidity of the solid recycled fuel SRF to prevent the moisture in it from reducing the combustion efficiency of the solid recycled fuel SRF of the present invention, the manufacturing system of the present invention further includes: a humidity sensing unit 51 connected to the raw material storage Each of the silos, and senses the humidity of each of the raw material storage silos; and the humidity control unit 52, which connects the humidity sensing unit 51 and each of the raw material storage silos, and depends on the humidity The humidity sensed by the sensing unit 51 controls the raw material storage bins below a predetermined humidity.

Specifically, as shown in FIG. 1, the humidity sensing unit 51 may be a hygrometer, and the humidity control unit 52 may be an exhaust pump, and the humidity sensing unit 51 senses at least one of the raw material storage bins In a case where the humidity of one is greater than the predetermined humidity, the humidity control unit 52 may exhaust the raw material storage bins that exceed the predetermined humidity to control the humidity in the raw material storage bins.

In addition, the humidity control unit 52 may be further connected to a gas storage device 53 (for example, a gas storage tank) to store the gas extracted from the raw material storage bins in the gas storage device 53. When methane is present in the gas extracted by the humidity control unit 52, it can be purified to use or sell the purified methane as fuel gas to maximize the use of effective energy; and, The extracted gas can be discharged into the atmosphere after proper treatment.

In addition, in order to minimize the pollution caused by the flue gas generated by the combustion of the solid recovery fuel SRF of the present invention, additives may be added to the solid recovery fuel SRF. Therefore, the storage device 40 may further include at least one additive storage bin 44 to store at least one additive ADD.

The at least one additive storage silo 44 may be selected from the group consisting of a desulfurization agent storage silo, a dechlorination agent storage silo, a deacidification agent storage silo, a mercury removal agent storage silo, and a heavy metal chelating agent storage silo. And, the at least one additive ADD may be selected from desulfurizers (for example: baking soda, CaSO ₄ , Na ₂ SO _{4 ,} sodium hydroxide), dechlorination agents, deacidification agents (for example: lime slurry (Ca(OH)) ₂ Add water)), mercury removal agent and heavy metal chelating agent, to control the content of sulfur, chlorine, acidic substances, mercury and heavy metals in the flue gas generated by the combustion of the solid recovery fuel SRF of the present invention to avoid pollution .

＜Mixing equipment 60 and molding equipment 80＞

After the sorting equipment 30 is used to group the raw materials RM and the raw materials RM of these groups are stored in the raw material storage bins of the storage equipment 40, according to the customer (for example: cogeneration plant, paper mill, textile mill According to the requirements of boiler manufacturers), the blending equipment 60 and the forming equipment 80 can be used to blend the calorific value of the raw materials RM with different calorific values to make the solid recovered fuel SRF with the customer-specified calorific value.

Specifically, the blending device 60 may be provided after the storage device 40, and the blending device 60 may be connected to each of the plurality of raw material storage bins of the storage device 40, and the molding device 80 may be provided in the blending device 60 After that, it is connected to the blending device 60.

The blending equipment 60 may include a calculation unit 61 and a feeding unit 62, wherein the calculation unit 61 may calculate the respective feeding amounts of the raw materials RM of the plurality of groups according to a specified calorific value (for example, a customer specified calorific value); The unit 62 can respectively feed the raw material RM from the plurality of raw material storage bins into the molding device 80 according to the feed amount calculated by the calculation unit 61; and the molding device 80 can feed the raw material RM fed by the feeding unit 62 Make solid recovery fuel SRF.

In another embodiment, in the case where the storage device 40 further includes at least one additive storage silo 44, the compounding device 60 may be further connected to the at least one additive storage silo 44. Wherein, the feeding unit 62 can feed the raw material RM and at least one additive ADD into the molding device 80 from the plurality of raw material storage bins and the at least one additive storage bin 44 respectively according to the feed amount calculated by the calculation unit 61; In addition, the molding device 80 can make the raw material RM and at least one additive ADD fed by the feeding unit 62 into a solid recovered fuel SRF.

＜Molding equipment 80＞

In the present invention, the molding device 80 may be a pelletizing molding machine. Specifically, in the granulation molding machine, the homogenized or non-homogenized raw material RM can be heated to melt and continuously stirred, and the molten raw material RM can be cooled to a processing temperature and then sent to the outlet of the molding device 80, and then Then, the molten raw material RM is cooled to a granulation temperature while pressurizing the raw material RM for granulation and molding, thereby forming solid recovered fuel SFR particles. Wherein, the processing temperature is slightly higher than the granulation temperature.

Alternatively, the molding device 80 may also be an impact type continuous softening extrusion device. Specifically, the homogenized or non-homogenized raw material RM can be input into the device, and the raw material RM can be reciprocally impacted by the impact unit of the device to generate friction and heat; and the cross-sectional area of the mold unit of the device can be designed In order to reduce the body of the device for accommodating the raw material RM instantaneously to generate additional heat. Through the friction and the cross-section machine, the heat generated instantaneously is reduced, and the raw material RM can be softened and partially melted and passed through the extrusion port of the die unit, thereby forming a rod-shaped solid recovered fuel SRF.

<Crushing equipment 71 and crushing equipment 72>

In order to make the solid recovery fuel SRF of the present invention have a denser and less fragile structure and a more uniform calorific value, a crushing device 71 and a crushing device 72 can be further used to homogenize the raw material RM. Among them, the crushing equipment 71 (for example: single shaft crusher, multi-shaft crusher and other shaft crushers) can crush the raw material RM into the first size or less, and the crushing equipment 72 (for example: multi-claw crusher, etc.) A type pulverizer) can further pulverize the raw material RM to a second size smaller than the first size, so that the size of the raw material RM is smaller and suitable for uniform dispersion and molding.

In an embodiment of the present invention, the crushing device 71 and the crushing device 72 are arranged between the blending device 60 and the forming device 80, and are connected to the blending device 60 and the forming device 80; and the crushing device 72 is provided after the crushing device 71 and Connect with the crushing equipment 71. However, in other embodiments, the crushing device 71 and the crushing device 72 may also be arranged between the sorting device 30 and the storage device 40, and connected to the sorting device 30 and the storage device 40; or, the crushing device 71 and The crushing device 72 may also be arranged between the storage device 40 and the blending device 60 and connected to the storage device 40 and the blending device 60.

As shown in Figure 2, according to the solid recovery fuel manufacturing system of the present invention, the present invention provides a solid recovery fuel manufacturing method, including: shredding step S10, screening step S20, sorting step S30, storage step S40, humidity The sensing step S51 and the humidity control step S52, the preparation step S60, the crushing step S71 and the crushing step S72, and the forming step S80. Hereinafter, each step in the manufacturing method of solid recovered fuel of the present invention will be described in detail.

It should be noted that the same parts as the solid recycled fuel manufacturing system of the present invention will not be described in detail in the following detailed description of the solid recycled fuel manufacturing method.

<The shredding step S10>

First, the shredding step S10 can be performed before the screening step S20 is performed, so as to shred the raw material RM into small pieces of waste that contain large bulk wastes; or, when the raw material RM contains waste When the volume of the material is less than the predetermined volume (for example, the volume of the screening step S20 can be effectively performed on the raw material RM), the shredding step S10 may not be performed, and the screening step S20 that will be described later is directly performed to correct The raw material RM is screened.

<Screening step S20>

In order to avoid wastes with no fuel value causing the reduction of the combustion efficiency of the solid recovered fuel produced by the manufacturing method of the present invention, and the production of suspended particles and bottom slag after combustion, at the same time, in order to further recycle part of the components, the present invention The manufacturing method includes a screening step S20 to separate the sand, magnetic metal, non-magnetic metal or glass in the raw material RM from the raw material RM.

Specifically, the screening step S20 may include but is not limited to at least one of the following: a sand and soil screening step to separate the sand and soil in the raw material RM; a magnetic metal screening step to separate the magnetic metal in the raw material RM; and a non-magnetic metal screening step to separate the raw material RM. Non-magnetic metal separation in RM; and a glass screening step to separate the glass in the raw material RM.

Among the components separated by the screening step S20, the sand with no reuse value can be buried or other waste treatment after proper treatment; while the magnetic metal, non-magnetic metal and glass with the reuse value can be recycled Reuse of resources.

<Separation step S30>

After the screening step S20 is performed to separate the components that do not have fuel value in the raw material RM, in order to control the calorific value of the solid recovered fuel produced by the manufacturing method of the present invention, a sorting step S30 can be performed to classify the raw material RM according to different Calorific value is grouped.

The sorting step S30 may include a scanning step S31 and a grouping step S32. In the scanning step S31, the raw materials RM of the separated sand, metal or glass may be scanned to obtain the calorific value of the raw materials RM; and, in the grouping step S32, the calorific value scanned in the scanning step S31 may be These raw materials RM are divided into a plurality of groups.

For example, in the grouping step S32, the plurality of groups may include, but are not limited to, the first group G1, the second group G2, and the third group G3, and these groups may be based on the calorific value scanned in the scanning step S31. The raw material RM is divided into the first raw material RM1, the second raw material RM2, and the third raw material RM3 corresponding to the first group G1, the second group G2, and the third group G3, respectively.

In a preferred embodiment, the calorific value of the first raw material RM1 of the first group G1 is 3000-4000 kcal/kg; the calorific value of the second raw material RM2 of the second group G2 is 4000-5000 kcal/kg; And the calorific value of the third raw material RM3 of the third group G3 is 5000～6000 kcal/kg. Therefore, by performing the sorting step S30 to group the raw materials RM with different heating values, the heating value of the solid recovered fuel produced by the manufacturing method of the present invention can be controlled and estimated.

<Storage step S40, humidity sensing step S51, and humidity control step S52>

After the sorting step S30 is performed to group the raw materials RM with different calorific values, the storage step S40 may be performed to store the grouped raw materials RM.

In the storage step S40, the plurality of groups of raw materials RM may be respectively stored in a plurality of raw material storage bins respectively corresponding to the plurality of groups.

For example, in the storage step S40, the plurality of raw material storage silos may include a first raw material storage silo 41, a second raw material storage silo 42, and a third raw material storage silo 43 to store the first raw material RM1, RM1, The second raw material RM2 and the third raw material RM3.

Similarly, unless the composition of the leftovers is complicated, the leftovers can be directly stored in the corresponding raw material storage bins according to their calorific value (preferably, the homogenization treatment can be carried out first), and after the shredding step S10. The textile materials, ASR and waste plastics in the screening step S20 and the sorting step S30 are made into a solid recovery fuel SRF together.

In addition, in order to prevent the moisture contained in the solid recycled fuel produced by the manufacturing method of the present invention from reducing its combustion efficiency, the manufacturing method of the present invention further includes a humidity sensing step S51, which senses the raw material storage bins. And humidity control step S52, controlling the raw material storage bins below a predetermined humidity according to the humidity sensed in the humidity sensing step S51.

Specifically, in the humidity sensing step S51, a hygrometer may be used for humidity sensing. In addition, in the case where the humidity of at least one of the raw material storage bins is sensed by the humidity sensing step S51 to be greater than the predetermined humidity, the air extraction pump can be used in the humidity control step S52 to treat the raw material that exceeds the predetermined humidity. The storage bin is evacuated to control the humidity in the raw material storage bins.

In addition, in the humidity control step S52, the gas extraction pump can be further connected to the gas storage device to store the gas extracted from the raw material storage bins in the gas storage device, so that the extracted gas can be The existing gas is purified and used as fuel or sold, and the remaining gas can be properly treated and discharged into the atmosphere.

In addition, in order to minimize the pollution caused by the flue gas generated by the combustion of the solid recycled fuel produced by the manufacturing method of the present invention, in the storage step S40, at least one additive may be further stored in at least one additive storage bin, In order to add at least one additive to the solid recovered fuel in a subsequent step.

The at least one additive storage silo is selected from the group consisting of a desulfurization agent storage silo, a dechlorination agent storage silo, a deacidification agent storage silo, a mercury removal agent storage silo, and a heavy metal chelating agent storage silo; and , The at least one additive is selected from the group consisting of desulfurizers, dechlorination agents, deacidification agents, mercury removal agents and heavy metal chelating agents to control the flue gas produced by the combustion of the solid recycled fuel produced by the manufacturing method of the present invention The content of sulfur, chlorine, acidic substances, mercury and heavy metals in it to avoid pollution.

<Preparation step S60 and molding step S80>

After the material storage step S40 is performed to store the raw materials RM of each group, according to the needs of the customer, the mixing step S60 and the forming step S80 can be performed to adjust the calorific value of the raw materials RM with different calorific values, so as to make the raw material RM with different calorific values. A solid recovered fuel with a specified calorific value.

The preparation step S60 may include a calculation step S61 and a feeding step S62. In the calculation step S61, the respective feeding amounts of the raw materials RM of the plurality of groups can be calculated according to a specified calorific value (for example, a customer specified calorific value) In the feeding step S62, the raw material RM can be fed into the molding equipment from the plurality of raw material storage bins respectively according to the feeding amount calculated in the calculation step S61; and, in the molding step S80, the molding equipment can be used The raw material RM fed in the feeding step S62 is made into a solid recovered fuel.

In another embodiment, in the case where at least one additive is further stored in at least one additive storage bin in the storage step S40, in the feeding step S62, the feed amount calculated in the calculation step S61 may be changed from The plurality of raw material storage bins and at least one additive storage bin respectively feed the raw material RM and at least one additive into the molding equipment; and, in the molding step S80, the raw material RM fed in the feeding step S62 and the At least one additive is made into a solid recycled fuel.

＜Molding step S80＞

In the molding step S80 in the present invention, a pelletizing molding method or an impact type continuous softening extrusion method may be used for molding. For the specific molding method, please refer to the relevant description of the molding device 80, which will not be repeated here.

<Crushing step S71 and crushing step S72>

In order to make the solid recycled fuel produced by the manufacturing method of the present invention have a denser and less fragile structure and a uniform calorific value, the crushing step S71 and the crushing step S72 may be further performed to homogenize the raw material RM. Among them, in the crushing step S71, the raw material RM may be crushed to a first size or less, and in the subsequent crushing step S72, the raw material RM may be further crushed to a second size or less smaller than the first size, so that the raw material The size of RM is smaller and suitable for uniform dispersion and molding.

In an embodiment of the present invention, the crushing step S71 and the crushing step S72 may be performed between the blending step S60 and the forming step S80. However, in other embodiments, the crushing step S71 and the crushing step S72 may also be performed between the sorting step S30 and the storage step S40 or between the storage step S40 and the preparation step S60.

In summary, as shown in Figure 3, in the present invention, the raw materials composed of textile materials, ASR, waste plastics and leftovers are separated from the incombustible components through screening equipment/steps; then, the raw materials in the raw materials Combustible substances are divided into groups with different calorific value ranges through the sorting equipment/steps and stored in the storage bin; then, according to the fuel calorific value specified by the customer, through the deployment equipment/steps, the raw materials with different calorific value ranges are calculated. Feeding volume: Finally, the previously prepared and fed raw materials are made into solid recycled fuel through the molding equipment, so that the calorific value of the solid recycled fuel meets the needs of customers.

Through the screening equipment/steps, the incombustible components in the solid recycled fuel can be reduced, so as to avoid reducing the combustion efficiency of the solid recycled fuel, or causing the solid recycled fuel to produce excessive suspended particles and bottom slag after combustion. In addition, in the non-combustible substances separated through the screening equipment/steps, the sand can be buried after proper treatment, and the metal substances and glass can be recycled for resource reuse

In addition, desulfurizers, dechlorination agents, deacidification agents, mercury removal agents and/or heavy metal chelating agents can be further added to the solid recycled fuel to control the sulfur, chlorine, acidic substances, The content of mercury and heavy metals prevents pollution.

In addition, humidity sensing and humidity control can be carried out in the storage equipment/steps to prevent the moisture in it from causing a reduction in the combustion efficiency of the solid recovery fuel of the present invention. In addition, the gas collected during the humidity control process can also be used or sold as fuel to further enhance the economic value of the manufacturing system/method of the present invention.

The solid recycling fuel manufacturing system and method of the present invention are used as an energy-saving and environmentally friendly technology to reduce the amount of waste buried, and are consistent with the current government's economic, industrial, energy-saving, and environmental protection policies and the world's green new energy development trend.

The above descriptions are only used to explain the preferred embodiments of the present invention, and are not intended to restrict the present invention in any form. Therefore, any modification or change related to the present invention is made under the same spirit of the invention. , Should still be included in the scope of the invention's intention to protect.

10: Shredding equipment 20: Screening equipment 30: Sorting equipment 31: Scanning unit 32: grouping unit 40: storage equipment 41: The first raw material storage bin 42: The second raw material storage bin 43: The third raw material storage bin 44: additive storage bin 51: Humidity Sensing Unit 52: Humidity control unit 53: Gas storage equipment 60: deployment equipment 61: Computing unit 62: Feeding unit 71: crushing equipment 72: crushing equipment 80: molding equipment ADD: Additive G1: The first group G2: Group 2 G3: Group 3 RM: raw material RM1: the first raw material RM2: the second raw material RM3: the third raw material SRF: Solid Recycled Fuel S10: shredding step S20: Screening steps S30: Sorting steps S31: Scanning step S32: Grouping steps S40: Storage step S51: Humidity Sensing Step S52: Humidity control procedure S60: deployment steps S61: Calculation steps S62: Feeding step S71: Fragmentation step S72: Crushing step S80: forming steps

Figure 1 is a schematic diagram of a solid recovery fuel manufacturing system according to an embodiment of the present invention; Fig. 2 is a flow chart of a manufacturing method of solid recovered fuel according to an embodiment of the present invention; and Fig. 3 is a flow chart of the process of making solid recovered fuel from raw materials through the steps of screening, sorting, storing, blending, and forming according to an embodiment of the present invention.

S10: shredding step

S20: Screening steps

S30: Sorting steps

S31: Scanning step

S32: Grouping steps

S40: Storage step

S51: Humidity Sensing Step

S52: Humidity control procedure

S60: deployment steps

S61: Calculation steps

S62: Feeding step

S71: Fragmentation step

S72: Crushing step

S80: forming steps

Claims (10)

A solid recovery fuel manufacturing system, including: Screening equipment to separate sand, magnetic metal, non-magnetic metal or glass in at least one raw material from these raw materials; A sorting device is arranged after and connected to the screening device. The sorting device includes a scanning unit and a grouping unit, wherein the scanning unit scans the separated sand, metal or glass to obtain the raw materials The calorific value of, and the grouping unit divides the raw materials into a plurality of groups according to the scanned calorific value; The storage device is arranged after the sorting device, and includes a plurality of raw material storage bins respectively corresponding to the plurality of groups, the plurality of raw material storage bins are respectively connected with the sorting device, and the plurality of raw material storage bins are connected to the sorting device. The silos separately store the raw materials of the plurality of groups; A blending device, which is arranged after the storage device and connected to each of the plurality of raw material storage bins, the blending device includes a calculation unit and a feeding unit; and The molding equipment is set after the blending equipment and connected to it, in, The calculation unit calculates the respective feed amounts of the raw materials of the plurality of groups according to a designated calorific value; The feeding unit feeds the raw materials into the molding equipment from the plurality of raw material storage bins respectively according to the calculated feeding amounts; and The molding equipment converts the fed raw materials into a solid recycled fuel. Such as the manufacturing system of claim 1, in which, The plurality of groups include a first group, a second group, and a third group. The grouping unit divides the raw materials into corresponding to the first group and the second group according to the scanned calorific values. The first raw material, the second raw material and the third raw material of the third group; and The plurality of raw material storage silos include a first raw material storage silo, a second raw material storage silo, and a third raw material storage silo, which store the first raw material, the second raw material, and the third raw material, respectively; and in, The calorific value of the first raw material of the first group is 3000-4000 kcal/kg; The calorific value of the second raw material of the second group is 4000～5000 kcal/kg; and The calorific value of the third raw material of the third group is 5000-6000 kcal/kg. For example, the manufacturing system of claim 1, further including at least one of the following: Shredding equipment, which is arranged in front of and connected to the screening equipment, shredding the raw materials into small pieces; and A crushing device and a crushing device are arranged between and connected to the sorting device and the storage device, the storage device and the blending device or the blending device and the forming device, and the crushing device is provided in the crushing device And then connected with the crushing equipment, in, The crushing equipment crushes the raw materials into a size below the first size; and The crushing equipment crushes the raw materials into a second size smaller than the first size. As in the manufacturing system of claim 1, the storage device further includes at least one additive storage bin for storing at least one additive, wherein: The at least one additive storage silo is selected from the group consisting of a desulfurization agent storage silo, a dechlorination agent storage silo, a deacidification agent storage silo, a mercury removal agent storage silo, and a heavy metal chelating agent storage silo; and , The at least one additive is selected from the group consisting of desulfurizers, dechlorination agents, deacidification agents, mercury removal agents and heavy metal chelating agents; and The blending device is further connected to the at least one additive storage bin; in, The feeding unit respectively feeds the raw materials and the at least one additive into the molding equipment from the plurality of raw material storage bins and the at least one additive storage bin according to the calculated feed amounts; and The molding equipment makes the fed raw materials and the at least one additive into a solid recycled fuel. Such as the manufacturing system of claim 1, further including: The humidity sensing unit is connected to and senses the humidity of each of the raw material storage bins; and The humidity control unit is connected to the humidity sensing unit and each of the raw material storage bins, and controls the raw material storage bins below a predetermined humidity according to the sensed humidity. A method for manufacturing solid recycled fuel, including: In the screening step, the sand, magnetic metal, non-magnetic metal or glass in at least one of the raw materials is separated from the raw materials; The sorting step includes the scanning step and the grouping step, among which, In the scanning step, the raw materials of the separated sand, metal or glass are scanned to obtain the calorific value of the raw materials, and In the grouping step, the raw materials are divided into a plurality of groups according to the calorific values scanned; In the storage step, the raw materials of the plurality of groups are respectively stored in a plurality of raw material storage bins respectively corresponding to the plurality of groups; Blending steps, including calculation steps and feeding steps; and Molding steps, in, In the calculation step, the respective feed amounts of the raw materials of the plurality of groups are calculated according to a designated calorific value; In the feeding step, the raw materials are fed into the molding equipment from the plurality of raw material storage bins respectively according to the calculated feeding amounts; and In the forming step, the fed raw materials are made into a solid recycled fuel. Such as the manufacturing method of claim 6, in which, In the grouping step, the plural groups include a first group, a second group, and a third group, and the raw materials are divided into corresponding to the first group, the second group, and the third group. The first raw material, the second raw material and the third raw material of the group; and In the material storage step, the plurality of raw material storage silos include a first raw material storage silo, a second raw material storage silo, and a third raw material storage silo, which store the first raw material, the second raw material, and the second raw material storage silo, respectively. Three raw materials; and in, The calorific value of the first raw material of the first group is 3000-4000 kcal/kg; The calorific value of the second raw material of the second group is 4000～5000 kcal/kg; and The calorific value of the third raw material of the third group is 5000-6000 kcal/kg. For example, the manufacturing method of claim 6, further including at least one of the following: Shredding step, shredding the raw materials into small pieces before the screening step; and The crushing step and the crushing step are between the sorting step and the storage step, between the storage step and the blending step, or between the blending step and the forming step, and the crushing step is after the crushing step , in, In the crushing step, the raw materials are crushed to below the first size; and In the pulverization step, the raw materials are pulverized into a second size or less smaller than the first size. Such as the manufacturing method of claim 6, in which, In this storage step, at least one additive is further stored in at least one additive storage bin, wherein, The at least one additive storage silo is selected from the group consisting of a desulfurization agent storage silo, a dechlorination agent storage silo, a deacidification agent storage silo, a mercury removal agent storage silo, and a heavy metal chelating agent storage silo; and , The at least one additive is selected from the group consisting of desulfurizers, dechlorination agents, deacidification agents, mercury removal agents and heavy metal chelating agents; and in, In the feeding step, the raw materials and the at least one additive are respectively fed into the molding equipment from the plurality of raw material storage bins and the at least one additive storage bin according to the calculated feed amounts; and In the forming step, the fed raw materials and the at least one additive are made into a solid recycled fuel. Such as the manufacturing method of claim 6, further including: The humidity sensing step is to sense the humidity in the raw material storage bins; and The humidity control step controls the raw material storage bins to be below a predetermined humidity according to the sensed humidity.

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