Method for preparing charcoal from sheep manure and wood dust

Abstract

The invention discloses a method for preparing wood charcoal from sheep manure and wood dust, which comprises the following steps: a. evenly mixing 50-100 parts of cleaned, air-dried and roll-pulverized sheep manure and 0-50 parts of wood dust, then feeding into a drying machine, and drying, wherein the temperature of the drying machine is 160-250 DEG C, and the drying time is such that the water content of the raw materials at the outlet of the drying machine is 8-12%; b. feeding the raw materials obtained in the step a into a rod-making machine, and pressing through the rod-making machine at 260-320 DEG C to obtain a rod-like semi-finished product for later use; and c. carbonizing the rod-like semi-finished product obtained in the step b in a carbonizing kiln, burning for 3-4 days, sealing the kiln when the temperature reaches 500-800 DEG C, and naturally cooling to obtain the wood charcoal finished product, wherein the fixed carbon content of the wood charcoal finished product meets the national hard broad-leaved wood charcoal superior quality standard (the fixed carbon content is no less than 85%). According to the invention, the problem that sheep manure is difficult to treat or is low in productive value after treatment can be effectively solved; and cutting of wood resulting from wood charcoal preparation can be reduced.

Description

Technical field [0001] The present invention involves a method of preparing charcoal with sheep manure and wood chips, which belongs to the field of charcoal processing. Background technique [0002] Charcoal (charcoal) is incomplete combustion of wood or wooden raw materials, or heat solutions under the condition of isolation of air. The remaining dark brown or black porous solid fuels are left. [0003] The main ingredient of charcoal is carbon element, the gray is very low, the heat value is about 27.21-33.49 mega coke / kg. In addition, there are hydrogen, oxygen, nitrogen, and a small amount of other elements.The final temperature.Charcoal is a water hate. The gray content is within 6%, and the pores account for more than 7%of charcoal volume. The proportion is generally 1.3 to 1.4.EssenceThere are a lot of micro -pores and transition holes in charcoal, which makes it not only a high ratio area, but also the cavity in the hole will have good adsorption performance after being ...

AI Technical Summary

Problems solved by technology

[0004] The existing charcoal preparation methods include kiln burning method and dry distillation method. Most of the raw materials used are tree branches, but trees cannot be regenerated in a short period of time and cannot be used for a long time. In order to solve the above problems, there are also charcoal prepared from wood chips or straws. , but this kind of charcoal has low calorific value (low fixed carbon content) and high ash content, so it is difficult to meet the national charcoal quality standards

[0005] At the same time, with the increase of farms, the feces in the farms cannot be effectively processed. The existing common method is to use it as organic fertilizer after composting and decomposing, but the stacking of organic fertilizer requires a large site, and the transportation cost is relatively high. High, the additional output value generated under this influence is low, or even loses money

Images