CN102172936A - Process for steaming and bleaching bamboo chip used by bamboo product - Google Patents

Abstract

The invention disclose a process for steaming and bleaching a bamboo chip used by a bamboo product, which is characterized by comprising the following steps: firstly, binding primarily-dug bamboo chips of a preset amount into a bamboo chip bundle which is convenient to manually transport; then, vertically placing a plurality of bamboo chip bundles in order in a bleaching frame by manual transportation, and sending into a steaming vat; after preset steaming and bleaching time, hanging the bleaching frame out of the steaming vat; and after standing and temperature lowering, and taking all bamboo chip bundles out of the bleaching frame to finish steaming and bleaching. The bamboo chip bundle is vertically arranged in the bleaching frame, so that an extrusion force between bamboo chips is small, and the steaming and bleaching efficiency is high; a bleaching liquid stuck on the bamboo chips or between bamboo chips naturally downwards flows along the bamboo chips to be removed in time, thereby avoiding the phenomenon that the bamboo chips have stains or spots because the bleaching liquid stays on the bamboo chips for a long time during the standing and temperature lowering process, and lowering drying cost; and in addition, the bamboo chips are vertically arranged in the bleaching frame, so that the bamboo chips are convenient to disassemble, thereby lightening labor intensity, improving working efficiency and saving cost.

Description

The bamboo product boiling and bleaching technology of bamboo chip

Technical field

The invention belongs to the bamboo product production technology, specifically is the especially boiling and bleaching technology of bamboo floor usefulness bamboo chip of a kind of bamboo product.

Background technology

The production technology of existing bamboo product mainly may further comprise the steps:

1, selection: choose intensity stabilization and contract with dry rate, bulking factor above fresh former bamboo of four little ages;

2, fracture: block according to predefined length, cut out and be sawn into sectional thick bamboo tube;

3, punching: former bamboo is washed into regular bamboo bar;

4, just dig (the thick equating in four sides): dried bamboo bar is carried out the meticulous planing in four sides, and it is the bamboo chip of rectangle that the tool marks that shoot off residual surf green, tabasheer and force plane stay, planing operation become section configuration;

5, boiling and bleaching or carbonization: bamboo chip inserted bleach or send into carbide furnace in 90 ℃ of hydrogen peroxide boilings of temperature pond and carry out high temperature cabonization and handle; The bleaching bamboo chip is used to make the true qualities bamboo product, and the carbonization bamboo chip is used to make carbon look bamboo product;

6, oven dry: will bleach or carbonization dry kiln or rail mounted dry kiln carry out the drying processing;

7, adjustable cast iron planes: dried bamboo bar adjustable cast iron planes is become needed specification;

8, gummed is multiple presses: glue-spread gluing and being coated with evenly in accordance with regulations, again by required specification with the multi-disc adjustable cast iron planes after the bamboo bar form slab, utilize hot press that the slab hot-press gluing is become blanket again;

9, product choosing: with the bamboo bar branch different rank of hanking;

Cut out head more in regular turn, test plate color separation, deburring, sanding, mortise, four side moulder, paint, after product inspection makes qualified paper bamboo product (bamboo floor).

The chemical composition and the timber of bamboo wood are basic identical, mainly are cellulose, hemicellulose, lignin and extracting material.But the protein that bamboo wood contains, carbohydrate, starch based, fat and wax are more than timber, under the suitable situation of humiture, subject to the erosion of worm, mushroom, therefore the bamboo bar need carry out boiling processing (true qualities) or hot and humid charing processing (coffee color) after force plane, remove extracts such as part sugar, starch based, add insect-proof agent, anticorrisive agent etc. during processing, stop growing of insects, mushroom.True qualities bamboo product (bamboo floor) is at 90 ℃ of hydrogen peroxide bleachings of temperature, the wall thickness bleaching time difference that the root tool is different, and the bamboo chip of wall thickness 4～5mm was bleached about 3.5 hours, the bamboo chip of wall thickness 6～8mm 4 hours.Carbon look bamboo product (bamboo floor) is to process through the secondary carbodiimide procedure under HTHP: the secondary charring process, with whole charings of nutrient such as the worm's ovum in the bamboo wood, fat, sugar part, protein, it is light making material, bamboo fibre is " hollow brick " shape to be arranged, and tension compression strength and water resistance improve greatly.

Boiling and bleaching or carbonation process directly influence the quality of bamboo product (bamboo floor) finished product, and present bamboo chip boiling and bleaching technology is specific as follows: at first be that bamboo chip with predetermined quantity is bundled into the bamboo chip bundle of being convenient to manual handling; Then, by manual handling a majority bamboo chip bundle being horizontal type is stacked in the bleaching frame; The bleaching frame that the bamboo chip bundle will be housed by crane gear is sent in the boiling pond; Finish predetermined boiling and bleaching after the time, by crane gear bleaching frame hung the boiling pond once more, leave standstill move back temperature after, take out all bamboo chips bundles in the bleaching frame, boiling and bleaching is finished.In this bleaching process, bamboo chip bundle is the horizontal type multilayer and is stacked in the bleaching frame, and during its existence not enough: bamboo chip is stacked together, be between the bamboo chip of bottom under pressure and be pressed on together, need cost could bleach for a long time thoroughly, the waste plenty of time, bleaching efficiency is low; Also have, when bleaching frame is hung out the boiling and bleaching pond, need leave standstill and to take out the bamboo chip bundle after the cooling and enter next process (oven dry), and because bamboo chip is accumbency and is stacked in the bleaching frame, the bleaching liquid that sticks on the bamboo chip or between the bamboo chip can't in time be excluded, and bleaching liquid is parked on bamboo chip in leaving standstill temperature-fall period, the parked point of bleaching liquid causes bamboo chip surface even entire body stain spot or stain point to occur easily, cause doing over again or discarded, increase the oven dry cost, the waste resource; Also have, bamboo chip is accumbency and is stacked in the bleaching frame, because bleaching frame has certain altitude, the bamboo chip bundle of the interior bottom of bleaching frame is inserted or take out all very difficult, and labour intensity is big, inefficiency.

Summary of the invention

The objective of the invention is to solve existing bamboo product and be stacked in the technical problem of being brought in the bleaching frame with bamboo chip bundle horizontal type in the bamboo chip boiling and bleaching technology, the boiling and bleaching technology of a kind of bamboo product with bamboo chip is provided, this technology can be impelled and sticks to after the boiling bleaching liquid on the bamboo chip and in time get rid of, prevent long-time delay of bleaching liquid and stain spot or stain point on bamboo chip, occur, loading and unloading are quick, increase work efficiency, reduce production costs.

Purpose of the present invention is achieved through the following technical solutions:

The bamboo product boiling and bleaching technology of bamboo chip is characterized in that may further comprise the steps:

A) bamboo chip behind the first plane of predetermined quantity is bundled into the bamboo chip bundle of being convenient to manual handling;

B) by manual handling a majority bamboo chip bundle being vertical is seated in the bleaching frame in order;

C) bleaching frame that bamboo chip bundle will be housed by crane gear is sent in the boiling pond;

D) finish predetermined boiling and bleaching after the time, bleaching frame hung the boiling pond by crane gear, leave standstill move back temperature after, take out all bamboo chips bundles in the bleaching frame, boiling and bleaching is finished.

Technology of the present invention, bamboo chip bundle are vertical perpendicular in order putting in bleaching frame, and the mutual extrusion power between the bamboo chip is little, and bleaching liquid can be simultaneously to the effect of bamboo chip all surface in the boiling and bleaching process, and boiling and bleaching efficient height is saved digestion time; Also have, after bleaching frame is hung out the boiling and bleaching pond, when leaving standstill cooling, because the bamboo chip in the bleaching frame is vertical placement, sticking to bleaching liquid on the bamboo chip or between bamboo chip nature under the gravity effect flows downward and is in time got rid of along bamboo chip, prevent to leave standstill in the temperature-fall period that bleaching liquid is long-time parked to make the bamboo chip of sending into baking operation not be with water substantially on the bamboo chip and cause occurring on the bamboo chip stain spot or stain point, reduce the oven dry cost; Also have, bamboo chip is vertical perpendicular putting in bleaching frame, load and unload very conveniently, reduces labor intensity, and increases work efficiency the saving cost.

The specific embodiment

The bamboo product boiling and bleaching technology of bamboo chip is characterized in that may further comprise the steps:

A) bamboo chip behind the first plane of predetermined quantity is bundled into the bamboo chip bundle of being convenient to manual handling;

B) by manual handling a majority bamboo chip bundle being vertical is seated in the bleaching frame in order;

C) bleaching frame that bamboo chip bundle will be housed by crane gear is sent in the boiling pond;

D) finish predetermined boiling and bleaching after the time, bleaching frame hung the boiling pond by crane gear, leave standstill move back temperature after, take out all bamboo chips bundles in the bleaching frame, boiling and bleaching is finished.

The bamboo chip bundle is vertical perpendicular in order putting in bleaching frame, and the mutual extrusion power between the bamboo chip is little, and bleaching liquid can be simultaneously to the effect of bamboo chip all surface in the boiling and bleaching process, and boiling and bleaching efficient height is saved digestion time; Also have, after bleaching frame is hung out the boiling and bleaching pond, when leaving standstill cooling, because the bamboo chip in the bleaching frame is vertical placement, sticking to bleaching liquid on the bamboo chip or between bamboo chip nature under the gravity effect flows downward and is in time got rid of along bamboo chip, prevent to leave standstill in the temperature-fall period that bleaching liquid is long-time parked to make the bamboo chip of sending into baking operation not be with water substantially on the bamboo chip and cause occurring on the bamboo chip stain spot or stain point, reduce the oven dry cost; Also have, bamboo chip is vertical perpendicular putting in bleaching frame, load and unload very conveniently, reduces labor intensity, and increases work efficiency the saving cost.

Above-mentioned technology is particularly suitable for the processing of bamboo floor.

The above only is preferred embodiment of the present invention, so can not limit scope of the invention process with this, i.e. the equivalence of doing according to the present patent application claim and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.

Claims (1)

1. bamboo product is characterized in that may further comprise the steps with the boiling and bleaching technology of bamboo chip:

A) bamboo chip behind the first plane of predetermined quantity is bundled into the bamboo chip bundle of being convenient to manual handling;

B) by manual handling a majority bamboo chip bundle being vertical is seated in the bleaching frame in order;

C) bleaching frame that bamboo chip bundle will be housed by crane gear is sent in the boiling pond;

D) finish predetermined boiling and bleaching after the time, bleaching frame hung the boiling pond by crane gear, leave standstill move back temperature after, take out all bamboo chips bundles in the bleaching frame, boiling and bleaching is finished.