TWI604041B - A method of producing biofuels - Google Patents

Description

Method for producing biomass fuel

The present invention relates to a method for producing a raw fuel, and more particularly to a method for producing a raw fuel.

In the processing or manufacturing process, some waste is often generated, and the waste may cause environmental pollution. Therefore, there are usually many ways to prevent pollution, such as trying to reduce the generation of waste, or subjecting the waste to preliminary treatment. After that, it may be buried or directly incinerated, etc., and this process may lead to an increase in cost, such as burying or direct incineration, etc., which may cause secondary pollution of the environment, and there is no special benefit, and the actual demand is improved.

In addition, with the gradual lack of limited natural fuels, many researchers have invested in research on biofuels, such as the Republic of China Patent Publication No. 201238914, "Methods for Derived Fuels from Sludge", Patent No. I531425 "Biological "Methods for sludge to make biofuels", Patent No. 431106 "Preparation of high-efficiency plant fuels", etc., all describe how to make sludge or wood chips into a biomass fuel; In each case, the manufacturing process mainly requires the addition of binders or cements, so that the sludge or wood chips can be shaped into a primary fuel, and the cement or the binder itself may cause another combustion process. In addition to environmental pollution, it also leads to an increase in production costs; therefore, the inventors have actively studied how to cure the sludge or wood chips or mixtures thereof without forming a cement material to form a method for producing a biomass fuel.

Accordingly, it is an object of the present invention to provide a method for producing a biomass fuel which can treat a resource material originally belonging to waste into a biomass fuel to reduce the generation of the resource material and to achieve waste recycling. Environmental protection.

Therefore, the method for producing a biomass fuel of the present invention comprises a preparation step, a sieving step, a stirring step, a high-pressure extrusion step, and the like; wherein the preparation step is provided with a resource material containing cellulose, and the resource material is hot The value is at least 1500 Kcal/kg or more, and the resource material is processed to be between 0.1 mm and 5 mm (ie, a sieving step), and the particle size in the resource material is uniformly stirred and controlled by the stirring step. The water content of the resource material in the stirring is 10% to 50%, and then the stirred resource material is subjected to high pressure extrusion through a salary bar forming machine, so that the resource material is pressed by the shaped hole of the salary bar forming machine. Extrusion, at the same time, the resource is generated by the friction during the extrusion process, so that the fiber in the resource material is formed into a solid biomass fuel by the action of temperature and pressure. The resource materials are selected from industrial wastes (such as wood chips, textile sludge, pulp sludge, etc.), and after being treated by the present invention, the waste can be made into a usable biomass fuel, which can solve the waste subsequent treatment. Problem, lower Discarded contaminated environment outside, and because renewable to provide combustion heat, thus achieving the environmental effect of waste recycling.

The above and other technical features, features, and advantages of the present invention will become apparent from the Detailed Description of the <RTIgt;

Referring to FIG. 1, a first preferred embodiment of the present invention, a method 3 for manufacturing a raw fuel, comprising a preparation step 31, a sieving step 32, a stirring step 33, a high-pressure extrusion step 34, and the like; Step 31 is provided with a resource material containing fibrous material, and the resource material needs to use a calorific value of at least 1500 Kcal/kg or more, and when the resource material is actually selected, a plant material such as a fibrous material can be selected ( For example, wood chips, rice straw, corn stalks, bagasse, grass, rice bran, straw, etc., or resource materials with fibrous sludge (textile sludge, pulp and paper sludge), etc. are applicable; In step 31, if two materials are used, they can be respectively pushed and released in the stocking step 31, and respectively passed through the screening step 32.

In the sieving step 32, the particle size of the resource material is processed to be between 0.1 mm and 5 mm. In the embodiment, the sieving step 32 includes a process of crushing, screening, drying, etc., wherein the crushing The process is to crush the resource material; and the screening process is to sieve a particle size of 0.1 mm to 5 mm, and if the fine particle size of the smaller particles is separated by cyclone, the coarse particle diameter is broken again, and The fine particle size portion can be sieved through the screen to filter the resource material of 0.1 mm to 5 mm particle size, and drying the particle size to a moisture content of 10 to 50% is optimal to meet the water content required for the stirring step 33. The rate conditions, for example, when using two resource materials such as wood chips and sludge, can also be calculated based on the total water content of the two resource materials, for example, when the water content allowed by the resource material of the wood chips is reduced to 10% or less. The water content permissible by the resource material of the sludge is increased to 50% or more, and the water content of the sludge and the wood chip resource material may be complementary to a total water content of 10 to 50% in the stirring step 33. It will reduce the processing cost of the wood chips or sludge drying.

Continuing the foregoing, in the stirring step 33, the stirring may be performed through a mixer, and the resource material may be uniformly stirred by the mixer. Of course, the water content should be controlled to be 10 to 50% during the stirring process, and the moisture content is sufficient. It will affect the friction between the materials in the resource material when the resource material is pressed after the stirring, that is, when the water content is too low, the friction of the materials in the material is easily caused by the extrusion process, resulting in insufficient friction After the forming, the biomass fuel has poor compactness, resulting in the lack of easy dispersion of the biomass fuel after forming; relatively, when the moisture content is too high, the friction material is generated in the resource material, so that the extrusion process More power is needed, resulting in increased production costs, and the formed biomass fuel is prone to swelling due to moisture, which in turn results in poor compactness, and too high water content can also cause microbial growth in the resource material, resulting in biomass. The subsequent storage of fuel is not easy. Therefore, it is best to control the water content between 15 and 20%. In addition, in order to increase the calorific value of the produced biomass fuel, an oil may be added at the appropriate time. Mixing, and the sludge addition amount is less than 30% by weight of the resource material to increase the calorific value of the raw fuel, and the sludge may be a cleaning oil tank or a tank bottom mud substance, and the calorific value is about 10000 Kcal/kg, or For heavy oil, coal powder, petrochemical sludge, vegetable oil, etc.

Finally, with reference to FIG. 2, the high-pressure extrusion step 34 can be passed through a salary bar forming machine 4, which includes a container 41, at least one shaped hole 42 disposed on the container 41 and connected to the outside. And an extruder 43 for pressing the inside of the container 41, that is, the stirred resource material is put into the container 41, and the material material is pressed by the extruder 43 of the salary bar forming machine 4 So that the resource is expected to be in the extrusion process of the shaped hole 42, the water content in the resource material increases the friction of the material in the resource material, so that the resource material and the extrusion process are due to the high pressure and friction. Without additional heating source, the high pressure and friction and the temperature generated can make the lignin or fiber slightly plasticized into natural glue. When the resource material containing sludge is contained, the fiber contained therein The utility model has the function of pressurizing and setting, and after extruding the raw fuel A (such as a rod type), the raw fuel A can be fixed and fixed after being cooled, thereby completing the manufacturing method of the raw fuel A. .

The present invention will be exemplified by the following experimental examples. The experimental examples 1 to 17 are tested. The resource material adopts a textile sludge calorific value of about 3000 Kcal/kg, a wood chip calorific value of about 4000 Kcal/kg, and a sludge heat value of about 10000 Kcal/ Kg; in the stirring step 33, the water content is controlled between 15 and 20%, and the calorific value of the biomass fuel and the shape of the formed fuel after molding are as follows:

<TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Project Experiment </td><td> Sludge (% by weight) </td><td > Resource material (% by weight) </td><td> calorific value (Kcal/kg) </td><td> forming state</td></tr><tr><td> wood chips</td>< Td> Sludge</td></tr><tr><td> 1 </td><td> 0 </td><td> 0 </td><td> 100 </td><td> 3000 </td><td> Curing</td></tr><tr><td> 2 </td><td> 0 </td><td> 20 </td><td> 80 </ Td><td> 3000 </td><td> solidification</td></tr><tr><td> 3 </td><td> 0 </td><td> 30 </td>< Td> 70 </td><td> 3200 </td><td> Curing</td></tr><tr><td> 4 </td><td> 0 </td><td> 40 </td><td> 60 </td><td> 3300 </td><td> solidification</td></tr><tr><td> 5 </td><td> 0 </td ><td> 50 </td><td> 50 </td><td> 3500 </td><td> Curing</td></tr><tr><td> 6 </td><td > 10 </td><td> 0 </td><td> 90 </td><td> 3700 </td><td> Curing</td></tr><tr><td> 7 < /td><td> 10 </td><td> 20 </td><td> 70 </td><td> 3900 </td><td> Curing</td></tr><tr> <td> 8 </td><td> 10 </td><td> 30 </td><td> 60 </td><td> 4000 </td><td> Curing</td></ Tr ><tr><td> 9 </td><td> 10 </td><td> 40 </td><td> 50 </td><td> 4100 </td><td> Curing </ Td></tr><tr><td> 10 </td><td> 15 </td><td> 0 </td><td> 85 </td><td> 4050 </td>< Td> Curing</td></tr><tr><td> 11 </td><td> 15 </td><td> 15 </td><td> 70 </td><td> 4200 </td><td> Curing</td></tr><tr><td> 12 </td><td> 15 </td><td> 30 </td><td> 55 </td ><td> 4350 </td><td> Curing</td></tr><tr><td> 13 </td><td> 20 </td><td> 0 </td><td > 80 </td><td> 4400 </td><td> Curing</td></tr><tr><td> 14 </td><td> 20 </td><td> 15 < /td><td> 65 </td><td> 4550 </td><td> Curing</td></tr><tr><td> 15 </td><td> 20 </td> <td> 30 </td><td> 50 </td><td> 4700 </td><td> Curing</td></tr><tr><td> 16 </td><td> 30 </td><td> 0 </td><td> 70 </td><td> 5100 </td><td> Curing</td></tr><tr><td> 17 </ Td><td> 30 </td><td> 15 </td><td> 55 </td><td> 5250 </td><td> solidification</td></tr><tr>< Td> 18 </td><td> 30 </td><td> 30 </td><td> 40 </td><td> 5400 </td><td> solidification</td></tr ></TBODY></TABLE>

After the actual test, each of the above experimental examples can be processed by the manufacturing method of the invention, and the sludge, wood chips and other resource materials can be formed into a solidified state of the biomass fuel (Fig. 2). As shown in Fig. 3, it is of course also possible to add appropriate sludge at the appropriate time to increase the overall calorific value of the biomass fuel in response to the calorific value required for various combustions.

In summary, the manufacturing method of the raw fuel of the present invention comprises a preparation step, a sieving step, a stirring step, a high-pressure extrusion step, and the like. The preparation step is provided with a material material containing fiber (such as wood chips, Waste material such as textile sludge and pulp sludge, and the resource material has a calorific value of at least 1500 Kcal/kg or more, and the resource material is processed to be between 0.1 mm and 5 mm (ie, a screening step), and then Through the stirring step, the particle size in the resource material is uniformly stirred into a resource material, and the water content is controlled to be 10% to 50%, and the resource material can be extruded through high pressure, so that the resource material is at the water content and high pressure. The temperature generated during the extrusion process allows the fiber to be pressurized and shaped, and has become a solid biomass fuel for combustion to generate thermal energy and achieve the environmental protection effect of waste recycling.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are generally modified. All should remain within the scope of the invention patent.

3‧‧‧Manufacturing methods

31‧‧‧Material preparation steps

32‧‧‧ screening step

33‧‧‧ stirring step

34‧‧‧High pressure extrusion step

4‧‧‧ Salary forming machine

41‧‧‧ Container

42‧‧‧Shaped holes

43‧‧‧Extrusion

A‧‧‧Biomass fuel

1 is a flow chart of a first preferred embodiment of the present invention. 2 is a schematic view of a salary bar forming machine of the present invention; and FIG. 3 and FIG. 4 are finished views of the raw material fuel of the present invention.

3‧‧‧Manufacturing methods

31‧‧‧Material preparation steps

32‧‧‧ screening step

33‧‧‧ stirring step

34‧‧‧High pressure extrusion step

Claims (6)

A method for producing a biomass fuel, comprising: a preparation step, comprising: a resource material containing fiber material, wherein the resource material has a calorific value of at least 1500 Kcal/kg or more; and a screening step, The resource material has a particle size of between 0.1 mm and 5 mm, and the water content of the resource material is between 10% and 50%; and a stirring step, the resource material after the sieving step is uniformly stirred, and After the treatment, the resource material controls the water content between 15% and 20%; and a high pressure extrusion step, which has a salary bar forming machine, the salary bar forming machine has a container for accommodating the agitated resource material , at least one shaped hole disposed on the container and communicating with the outside, and an extruder for pressing the inside of the container, and the resource of the stirring step is pressed by the extruder under high pressure to make the resource The material is pressed and extruded by the shaping hole, and the resource material generates temperature due to friction during the extrusion process of the shaping hole, so that the fiber material in the resource material is formed into a solid state by the action of temperature and pressure. Biomass fuel. The method for producing a raw material fuel according to the first aspect of the invention, wherein the resource material is one of wood chips, textile sludge, and pulp paper sludge. The method of producing a raw material fuel according to the second aspect of the invention, wherein the resource material may be a mixture of two or more of the wood chips, the textile sludge, and the pulp sludge. According to the manufacturing method of the raw fuel according to the first or third aspect of the patent application, a further sludge may be added to the stirring step, and the sludge is added in an amount of 30% by weight or less of the resource. The method for producing a raw material fuel according to the first or third aspect of the invention, wherein the sieving step comprises a process of crushing, screening, drying, etc., wherein the crushing process is to break the resource material; The screening step is to sieve a particle size of 0.1 mm to 5 mm and dry the particle size to a moisture content of 10 to 50%. According to the method for producing a raw fuel according to the fifth aspect of the patent application, when two or more resource materials are used, the water content thereof in the drying step is calculated based on the total water content of the two resource materials.