CN100436568C

CN100436568C - Wood charcoal, bamboo charcoal and active carbon producing method and apparatus

Info

Publication number: CN100436568C
Application number: CNB2004100449708A
Authority: CN
Inventors: 张广志
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-08
Filing date: 2004-06-08
Publication date: 2008-11-26
Anticipated expiration: 2024-06-08
Also published as: CN1706915A

Abstract

The present invention provides an improved method and a device for making charcoal, bamboo charcoal or activated charcoal. The present invention adopts the technical means that before a material to be carbonized enters a furnace kiln, an astringent of calcined gypsum powder or zinc sulphate is sprayed to the surface of the material to be carbonized, after the material is carbonized and healed, the active gas of nitrogen is blown in from an opening of an air inlet pipe arranged at the top of the furnace kiln to cause the cooling stage to be in the active gas; in this way, the prepared charcoal or the activated charcoal has no undercooked phenomenon and high yield; quality and economic benefit of producers can be obviously enhanced.

Description

Make charcoal, bamboo charcoal or process of active carbon and device

Technical field

The invention belongs to technical field of agricultural product process, a kind of manufacturing charcoal, bamboo charcoal or process of active carbon and device are provided.

Technical background

Along with the development of industrial and agricultural production and the raising of people's living standard, the requirement of charcoal, bamboo charcoal and gac increases year by year, and its industrial scale also increases year by year.The production method of traditional a large amount of charcoals is in the dome charcoal kiln that is built into, and is earlier good the wooden stick pile, lights small wooden from bottom inlet again, and faggot etc. enter in the charcoal kiln warm air.Warm air is contacting the back as much as possible from the chimney discharge with wooden stick in the kiln, the wooden stick decomposes forms charcoal in the kiln.In recent years, production method and device also obtain to update, provide a kind of raw material through pneumatic dryer as Chinese patent " dried charcoal new process of production and the device thereof sauted of the full electric energy low temperature of CN1436833. ", storage bin, screw extrusion press is sent into cryodrying under 270～350 degrees centigrade temperature in the electric heating charring furnace at last, charing and the technology and the device of charcoal.Chinese patent " production methods of 11834797 the charcoals " (U.S., right of priority) thus the method that provides a kind of charcoal that can effectively utilize reactor waste heat, work the time to make inside reactor keep certain pressure can shorten the time of periodical operation greatly to produce, thermal source is provided by resistance heater or gas-fired radiation well heater in this method.It is the carbonizing apparatus of core with the thruster that Chinese patent " CN2218741 artificial charcoal's carbonizing apparatus " provides a cover, and thruster is equipped with cartridge heater and well heater outward.

The inhibition invalid burning of prior art in improving charcoal yield, charing degree and production process, the aspects such as subsequent disposal of product have all obtained certain progress, but have also existed obviously not enough.Show that mainly products obtained therefrom charing degree is inhomogeneous.Carbonated material is outside owing to unnecessary burning consumes when carbonization time is abundant, thereby yield is lower, and if the carbonization time deficiency, perhaps come out of the stove too early for the consideration of faster production, often have half-cooked phenomenon, the inside charing of material is insufficient, influences next step use.Also there are these problems in the production of bamboo charcoal and gac.

Summary of the invention

Based on above understanding, the purpose that the present invention desires to reach is: by adding astringent matter and the method and apparatus that is blown into reactive gas, it is even to produce the charing degree in the short period of time, higher charcoal, bamboo charcoal or the gac starting material that do not have half-cooked product again of output.

For achieving the above object, the technique means that the present invention takes is: 1, for carbonated material, before its heat treated, promptly enter its surface of stove forward direction and evenly spray astringent matter powder or strong solution, the astringent matter range of choice is gesso (calcium sulfate), zinc sulfate.Gypsum is often used for producing charcoal, and zinc sulfate is used to make bamboo charcoal, gac.Gesso is 1: 25～1: 10 with the quality of timber than scope, depends on the lumber quality type when specifically selecting, and does wet degree.The mass ratio of zinc sulfate and bamboo wood or desire preparing active carbon material is 1: 25～1: 15, because of gesso has certain adhesive property, during use its powder is evenly spread wood surface, and zinc sulfate will be made into saturated solution in use earlier, evenly be sprayed onto the surface for the treatment of carbonated material with atomizer again, treat that material is air-dry or dry after enter the stove heating again.2, at the top of stove one air inlet port is set, connects the reactive gas source of the gas of inlet pipe outside stove, inlet pipe is selected heat-resisting pipes, and inside diameter ranges is 0.5cm～1cm..3, according to conventional time heating, after stopping heating, removing thermal source, the sealing chimney.To heating air inlet mouth shutoff major part, only stay very little hole in the bottom, the hole diameter range of choice is 2cm～10cm, open the reactive gas valve then, be blown into reactive gas nitrogen from the top, be put in aperture place, bottom with the timber that has ashes, when treating that ashes extinguish very soon, stop to be blown into nitrogen, sealed aperture is cooled to tapping temperature and is finished product.

Description of drawings

Fig. 1 is that simple and easy charcoal kiln installation is the kiln body according to device synoptic diagram 1 of the present invention, and 2 is the heating air inlet mouth, and 3 is the aperture that stays after the shutoff, 4 is the top air inlet mouth of pipe, and 5 is inlet pipe and valve, and 6 is reactive gas nitrogen steel cylinder, 7 is chimney, and 8 is chimney sealing cover and upper valve.

Embodiment

Embodiment one: barbecue is produced with charcoal, and timber is the apple tree branch material of natural air drying.At first before entering stove, timber evenly spills the cloth gesso to its surface, gesso is buied by hard ware store, the mass ratio of gesso and material be 1: 12. after gesso evenly sticks to wood surface, also has the surplus gesso of a small amount of system, treat that then timber enters stove, the surface of evenly spreading timber after the good treadle-operated tilt hammer for hulling rice of sign indicating number.Then according to conventional time heating, after stopping heating, removing thermal source, the sealing chimney, shutoff heating air inlet mouth, staying very little production well, diameter in the bottom is 3cm, open top part valve then, be blown into nitrogen, gassing time is seen the band ashes of being located at air outlet hole mouth in the time of 4 minutes batten extinguishes valve-off very soon, stop to blow, sealed aperture postcooling to tapping temperature gets final product.

Embodiment two, and producing of bamboo charcoal at first got zinc sulfate (technical grade) and be made into saturated solution, then with atomizer to treating into charcoal bamboo wood surface even spraying.The mass ratio of zinc sulfate and bamboo wood (pure) is 1: 15.Spraying back natural air drying, or hot blast drying, the stove of packing into then, subsequent operations is identical with embodiment one.

Claims

1, a kind of manufacturing charcoal, bamboo charcoal or process of active carbon, it is characterized in that entering its surface of stove forward direction at the desire carbonated material spills cloth gesso or zinc sulfate, be blown into nitrogen to being full of kiln inside at the air inlet mouth of pipe that stops installing from the kiln top charing heating back, sealing is cooled to kiln discharge.

2, the method for claim 1, what it is characterized in that described gesso spills mode for cloth for directly being dispensed onto the surface of desiring carbonated material, gesso with treat that the mass ratio of carbonated material is 1: 25～1: 10.

3, the method for claim 1, it is characterized in that, the mode for cloth that spills of described zinc sulfate is that the saturated solution of zinc sulfate is sprayed to the surface of desiring carbonated material, enters the heating stove after material is air-dry again, and zinc sulfate is 1: 25～1: 15 with the mass ratio of desiring carbonated material.

4, the method for claim 1 is characterized in that, the described amount that is blown into nitrogen is as the criterion to be full of whole stove.

5, the method for claim 1 is characterized in that, is installed into gas tube orifice (4) at the stove top, by airway (5), links to each other with active source of the gas nitrogen steel cylinder (6).