Method for preparing alcohol by fermenting, freezing and pyrolyzing crop straw powder

Abstract

The invention discloses a method for preparing alcohol by fermenting, freezing and pyrolyzing crop straw powder, which comprises the following steps of: selecting fresh and non-deteriorated crop straws, mechanically crushing into powder with the particle size of less than or equal to mm grade, preparing the powder and fermentation mould liquid according to the weight ratio of 10: (2-4), fermenting for 5-7 days, and freezing the crop straw fermentation powder to obtain the alcohol. The freezing temperature is below-60 DEG C, and the freezing time is more than 12 hours, and then putting into a food steamer to cook, so as to produce ethanol liquid. The straw material is fully utilized, and waste is turned into wealth; the method has the advantages of convenient production, high alcohol production amount, good quality and high purity.

Description

Technical Field

[0001] The present invention relates to a method for producing alcohol from crop straw powder. Background Art

[0002] With the increase in agricultural production and the increment of crop straw, as the era of using crop straw as a living material has passed, crop straw has become garbage polluting the air, soil and water. In order to better utilize and give full play to the uses of crop straw, it is necessary to invent a process technology for fermenting, freezing, pyrolyzing and producing alcohol from crop straw powder. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for fermenting, freezing, pyrolyzing and producing alcohol from crop straw powder that makes full use of crop straw.

[0004] The technical solution of the present invention is as follows: A method for fermenting, freezing, pyrolyzing and producing alcohol from crop straw powder, characterized by comprising the following steps: Select fresh and non-decomposed crop straw and mechanically crush it into powder with a particle size ≤ mm level. Then, configure the powder and the fermentation mold liquid agent according to a weight ratio of 10:2-4, ferment for 5-7 days, and then freeze the crop straw fermentation powder at a freezing temperature below -60°C for more than 12 hours. Then, put it into a steamer for cooking to produce ethanol liquid.

[0005] The preparation method of the fermentation mold liquid agent: Use high-gluten flour, koji fermentation powder and water, and stir evenly according to a weight ratio of 5:1:10. Load it into a container, place the container in an environment of 20°C - 30°C for 6-10 hours to prepare the fermentation mold liquid agent, and transfer it to a normal environment for use.

[0006] The present invention makes full use of straw materials, turning waste into treasure; it is convenient to produce, has a high alcohol production volume, good quality and high purity.

[0007] The following further illustrates the present invention with reference to embodiments. Detailed Embodiments

[0008] A method for fermenting, freezing, pyrolyzing and producing alcohol from crop straw powder specifically comprises the following steps: (1) Crop straw cracking: Select fresh and non-decomposed crop straw, and use a power crusher to crush and crack it, with a fineness particle size ≤ 1mm; (2) Prepare the fermentation mold liquid agent; (3)Agent preparation: First, dilute the fermented mold agent with water, and stir evenly according to the weight ratio of fermented mold agent to water of 1:50. Then, carry out agent preparation, mix the crop straw powder and the fermented mold agent evenly according to the weight ratio of 1:0.3, and stack them. The height should be ≤ 3 m, and the length and width are not limited. Cover with a plastic film, control the temperature above 20 °C, and seal and ferment for 5 - 7 days; (4)Agent quick-freezing: The fermented agent is packed into boxes and put into the freezer. Control the temperature below -60 °C, and the freezing time is 12 - 18 hours; (5)Steaming to produce alcohol: The quick-frozen agent is loaded into the steaming tray. The steaming tray is placed on the steamer. Before placing the steaming tray, the steamer should be filled with water. The number of layers of the steaming tray should be controlled within 12 layers; (6)Igniting to obtain alcohol: After the steamer is placed, ignite to obtain alcohol. Under the attack of the fire, the water in the steamer evaporates, continuously steaming the agent. Finally, the steam is introduced into the alcohol storage through the cage eye hole conduit, and after cooling, alcohol products are formed with a purity of over 90%; (7)Turning and emptying the steamer: When the steaming time of each batch of agent is up, empty and turn the steamer.

Claims

1. A method for preparing alcohol by fermentation, freezing and pyrolysis of crop straw powder, characterized in that: The following steps are involved: Fresh and unspoiled crop straw is selected for mechanical crushing into powder with a particle size of ≤mm, and then the powder and fermentation mold liquid are prepared in a weight ratio of 10:2-4. After 5-7 days of fermentation, the crop straw fermentation powder is frozen at a freezing temperature below minus 60°C and a freezing time of more than 12 hours. It is then put into a steamer for cooking to produce ethanol liquid.

2. The method for preparing alcohol by fermentation, freezing and pyrolysis of crop straw powder according to claim 1, characterized in that: The preparation method of the fermented mold liquid is as follows: high-gluten flour, koji fermentation powder and water are used, and are fully and evenly mixed in a weight ratio of 5:1:10, and are put into a container, and the container is placed in an environment of 20°C-30°C for culturing for 6-10 hours to obtain the fermented mold liquid, and the fermented mold liquid is moved into a normal environment for standby use.

3. The method for preparing alcohol by fermentation, freezing and pyrolysis of crop straw powder according to claim 1 or 2, characterized in that: The specific steps include: (1) Crop straw crushing: Select fresh and unspoiled crop straw and crush it with a power crusher to a particle size of ≤1mm; (2) Preparing fermentation mold liquid; (3) Material preparation: first add water to the fermented mold liquid and mix it evenly according to the weight ratio of 1:

50. Then prepare the material by mixing the crop straw powder and fermented mold liquid at a weight ratio of 1:0.

3. Pile them up to a height of ≤3m and with no limit on length and width. Cover them with plastic film, control the temperature at above 20°C, and seal and ferment for 5-7 days. (4) Quick freezing of materials: After fermentation, the materials are packed into boxes and placed in a freezer. The temperature is controlled below -60°C and the freezing time is 12-18 hours. (5) Steaming and alcohol production: The frozen materials are placed in a steamer tray, and the tray is placed on a steamer. Before placing the steamer tray, the steamer should be filled with water. The number of steamer trays should be controlled within 12 layers. (6) Start a fire to extract alcohol: After the steamer is set aside, start a fire to extract alcohol. Under the attack of the fire, the water in the steamer evaporates, continuously boiling the material, and finally the steam is introduced into the alcohol storage container through the cage eye hole conduit, and the alcohol product is formed after cooling; (7) Turning the cage over and over: When the cooking time for each batch of materials is up, turn the cage over and over.