JPS59124839A - Solid matter and manufacture thereof - Google Patents

Abstract

PURPOSE:To prevent excessive generation with a smooth molding process by controlling the final water content of a product to eliminate poor solidification and the shortage of calorie and deformation thereby enabling the mixing of crushed material forcibly dried forcibly humidifying it in an atmosphere of a high humidity. CONSTITUTION:Roughly crushed material is transferred to a drier on a blow of air or the like and dried until the water content down below 10% at 40-120 deg.C. After crushed again down below 1cm, the material is fed into a mixer and mixed in a high humidity atmosphere being forcibly humidified so that the material different in the particle and the humidity are mixed uniformly to be fed into a molding machine. The forcible humidification applies water to the recrushed material to expand and soften it with the water content increased by about 2-5% thereby facilitating the molding. The material is further crushed between circular porous dies and push rollers and forced into the dies while a water soluble adhesive component being extracted to be extrusion molded into a bar body, whose shape is retained with the adhesive component extracted. The product is cut off with a cutter and cooled to solidify.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to solid materials such as embankment blocks, solid fuels, and blocks for revetment, and a method for producing the same 1''-IIA.

Solid matter and its manufacturing method (for details, see JP-A-52-1
θ] No. 202 proposes fuel pellets and a method for producing the same. However, there is a risk that many defective products will be obtained as the fuel and I7 are not suitable due to the lack of calories.

Such failure is due to the final moisture content (16~28!1!

This is thought to be due to two factors: too much N%) and insufficient pressure during molding.

The present invention was made in response to the problems of the prior art (secondary focus), and solves the problems such as lack of assimilation, lack of calories, and easy deformability by suppressing the final moisture content of the product to 12% or less. In the manufacturing method, the pulverized raw materials that have been forcibly dried to 10% or less are mixed while being forcibly humidified in a humid atmosphere, so that the next molding process can be easily and smoothly completed, and excessive heat generation during molding can be completed. It is possible to prevent this heat generation (2), thereby preventing overloading of the device C2, and in the molding process,
The raw material softened by forced humidification makes it easier to extract the unique water-soluble adhesive component, which allows for efficient molding. This makes it possible to solve the problems seen in the prior art.

The raw materials that can be used in the present invention can be divided into two types: combustible raw materials and non-flammable raw materials. In addition to plant fibers such as rice straw, wheat straw, palm stems, and coconut fruit (e.g., stems of beans, stems of legumes, etc.), animal feces, fish meal, and combustible garbage, washing for embankments, Manufacture of seawall blocks ζ1 Usable noncombustible raw materials include industrial waste, household discarded noncombustible garbage, metal powder, stone powder, and glass powder.

An example of carrying out the present invention will be described with reference to a solid fuel made from plant fibers and a method for producing the same.

Raw materials, bark, water use.

First step of the manufacturing process (coarse pulverization step) The raw material is pulverized, and the degree of pulverization may be as long as it is pulverized to the extent that it can be dried in a dryer, and the degree of pulverization may be as low as coarse pulverization.

Large-diameter trees are pretreated with a chipper and then fed into a crusher for crushing, while large chips, fine bark, etc. are directly fed into the crusher and crushed.

The size of the coarsely pulverized raw material is approximately 2 Crn in both the maximum diameter and the maximum flame in an example with a circular cross section.

2nd process (transfer process to the dryer) The coarsely pulverized raw material is transferred to the dryer, and the transfer means include the use of a screw conveyor (two-way conveyor transfer, air blowing means using a fan and cyclo force, etc.) .

In the case of air blowing, the coarsely pulverized raw material is sent by a fan, separated from the air by a cyclone, and then sent to the dryer.

3rd process (forced drying process) The dryer has an inner diameter of 1,170 cm and a length of 12,000 cm.
A 6m rotary kiln was used. Dryer (2) The transferred coarsely pulverized raw material is dried to a moisture content of 10% or less. The drying temperature is approximately 120 to 40°C at the exit of the dryer.

'fJ4 process (re-grinding process) Performed as necessary P] Coarse crushing process, raw materials coarsely crushed in the first process and dried in the previous process, pretreated with a chipper, and dried in the 'i' process The target is raw materials (Second). It is preferable that the size of the re-pulverized raw materials, including maximum flame, maximum thickness, and maximum diameter, are all 1 crrL or less. Re-grinding is carried out using a pulverizer equipped with a screen that has a sorting function. It is advantageous to obtain a reground raw material with a certain size.

5th step (transfer process to dry raw material storage) The re-ground raw material is transferred to the dry raw material storage by an appropriate transfer means such as air blowing, belt conveyor transfer, bucket conveyor transfer, etc., and its moisture content must be 10% or more (= Stored in a humidity-controlled warehouse.

Sixth Step (Transferring Step to Mixer) The re-ground raw material in the dry raw material warehouse is sent to the mixer by an appropriate transfer means before being transferred to the screw conveyor or packet conveyor. The mixer may be included in the molding machine or may be provided separately.

7th step (Mixing process with forced humidification) The re-ground raw materials put into the mixer are mixed while being forcedly humidified in a humid atmosphere, and the re-ground raw materials with different particles and humidity are uniformly mixed (while being mixed together). It is sent to the molding machine.Forced humidification adds moisture to the dry re-ground raw material with a water content of 10% or less, increases the water content by about 2 to 5%, expands it and softens it, and molds it in the next process. As a forced humidification means to create a humid atmosphere, water vapor of 100°C or higher, hot water of 100°C or lower, room temperature water, etc. can be used. This is thought to be advantageous because it can spray the re-pulverized raw material with water evenly.

8th step (extrusion molding step while extracting the water-soluble adhesive component) The humidified raw material sent into the molding machine is further processed by C2 between an annular porous die and a push roller arranged inside the die. It is crushed into pieces, and the unique water-soluble adhesive components (adhesive components such as lignin, holocellulose, wax, etc.) are extracted and pushed into a die. The rod-shaped body (double extrusion molded, and the extracted water-soluble adhesive component adheres the humidified raw materials to each other to maintain the cross-sectional shape of the rod-shaped body. The pore diameter of the porous die is 0.5
It can be used up to about 3 cm (the preferred pore size is 0.6 to 3 cm).
The pressure of the pushing roller when pushing the humidified raw material (approximately 0.8 cm) into the porous die is 400 to 1000 K.
g/cWL". The moisture content of the humidified raw material is reduced by 2 to 3% by heating during extrusion molding.

Ninth step (cutting step) The extruded rod-shaped body is cut into a predetermined length (1 to 3cm) using a cutter.
(within the range of position m)C2 cut.

10th Step (Cooling and Solidifying Step) The cut rod-shaped body is sent to a cooling chamber to cool down the heat during extrusion molding, and is cooled to below room temperature (secondary) to solidify the rod-shaped body to obtain a product. The distance between the cutter and the porous die must be arbitrarily set in the pre-processing process (secondarily, the diameter must be 0.5 mm).
~ Ecrn, the length is about 1 to 3 cm, and the final moisture content is about 13% at the highest.

Product usage Fuel for household stoves.

Industrial boiler fuel.

Patent applicant Masaru Takeuchi 3! I!
Ka early Jll □ Name (go・′・・ゝゝ、.

Claims (2)

[Claims] (1) A short rod-shaped solid with a final moisture content of 13% or less, which is molded and solidified with a water-soluble adhesive component specific to the raw material. (2) The pulverized raw material is forcibly dried to a moisture content of 10% or less, mixed while being forcibly humidified in a humid atmosphere, and further finely pulverized to extract the water-soluble adhesive component specific to the raw material while extruding into rod-shaped parts C. A method for producing a solid product, which consists of the steps of shaping, cutting, cutting, and assimilating to a predetermined short size.