CN201186921Y

CN201186921Y - Gear-shaped clean molded coal

Info

Publication number: CN201186921Y
Application number: CNU2008200105179U
Authority: CN
Inventors: 汪新立; 汪知宜
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-29
Filing date: 2008-01-29
Publication date: 2009-01-28
Anticipated expiration: 2018-01-29

Abstract

A gear-like clean briquette is a solid fuel for household heating boilers, direct-heating type heating furnaces and cooking stoves, etc. The briquette comprises a columnar briquette body containing mineral coal and clay raw materials, the technical key points thereof are as follows: the raw materials of the briquette body further contains carbonized straw, the content of the carbonized straw is 30 to 60 percent of the total weight of the used raw materials, and the cross section of the briquette body is shaped like a gear. The gear-like clean briquette takes the carbonized straw as the main raw material, thereby having the advantages of reasonable structural design, adequate sources of the raw materials, light weight, low cost and high fuel value; furthermore, the gear-like clean briquette can prolong the combustion time, improve the thermal efficiency of the combustion, reduce the emission amount of ash slag, significantly reduce the emission concentration of soot, sulfur dioxide and carbon dioxide and be conductive to the environmental protection.

Description

The gear-like clean moulded coal

Technical field

The utility model relates to a kind of solid fuel that is used for family's heating boiler, directly heating type cooking stove, cooking stove etc., and particularly a kind of cindery quantity discharged is little, the gear-like clean moulded coal that the combustion value is high.

Background technology

At present, traditional moulded coal, as various honeycomb briquettes and coal briquette wide popularization and application, its main component is mineral coal and clay.This moulded coal major advantage is to save the coal that looses, and is easy to use, can improve combustion thermal efficiency.But this moulded coal cost is higher, and when particularly adopting poor quality to loose coal, cindery quantity discharged is big, and sulfurous gas and emission of carbon-dioxide concentration are also bigger, and the combustion value is lower, and thermo-efficiency is very low.Honeycomb briquette because of around outer wall all be smooth flat, closely contact with the furnace wall face, so combustion channels and furnace wall have coal body to completely cut off, can not directly act on the furnace wall, the thermal value on every side of coal body is very little.Therefore, when utilizing this moulded coal to make the fuel of water-jacket typ heating boiler or directly heating type cooking stove, thermo-efficiency is very low.

The stalk of existing farm crop mainly is the fuel that is used to cook in the rural area, can directly use, and also has small part to be used as animal feed, and most of spare time abandons need not.The stalk of stacking had both influenced environmental health on every side throughout the year, became disaster hidden-trouble simultaneously again.Loosely organized because of it, bulky, the combustion value is lower, and combustion time is short, so can not directly be used as the fuel of the warming of boiler.

The utility model content

The purpose of this utility model provides a kind of gear-like clean moulded coal; it as main raw material, has reasonable in design with carbonization stalk, sufficient raw; light weight; cost is low, and combustion value height can prolong combustion time; improve combustion thermal efficiency; cindery quantity discharged is few, significantly reduces the advantage of flue dust and sulfurous gas and emission of carbon-dioxide concentration, helps environment protection.

The purpose of this utility model realizes like this: this moulded coal comprises the cylindrical body coal body that contains mineral coal, carbonization stalk and raw clay, and its technical essential is: described coal body cross section is gear-like.

Described coal body is provided with at least one through hole parallel with the axis direction of cylindrical body.

The cylindrical body of described coal body is the frustum body.

Because the utility model is improved on the moulded coal basis of existing honeycomb briquette that contains mineral coal and raw clay and coal briquette, and substitute partly mineral coal and clay as main raw material with carbonization stalk, so reasonable in design, sufficient raw is removed the diffusing coal of the saving that keeps existing moulded coal, easy to use, can improve outside the characteristics of combustion thermal efficiency, also have the light weight of carbonization stalk, cost is low, burning-point height, sufficient combustion, advantage such as the noncoking of burning back, sulphur content be low, easily loose.The briquette strength height of making, percentage of damage is low during transportation, and the coal body cross section is gear-like, and combustion processes is carried out around coal body, by the between cog passage heat energy is directly acted on the body of heater wallboard,, heats by radiator element the heating of the recirculated water in the water jacket furnace via wallboard; Or direct radiation wallboard ambient air, direct heating.Good permeability when burning because of it, combustion value height can prolong combustion time, so can increase combustion thermal efficiency, cindery quantity discharged is few, significantly reduces flue dust and sulfurous gas and emission of carbon-dioxide concentration, reaches save energy, reduces the purpose of topsoil.This kind moulded coal can digest the various agricultural crop straws of a large amount of sufficient raw, and making it turns waste into wealth, and turns bane into boon, and helps environment protection.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a kind of concrete structure synoptic diagram of the present utility model.

Embodiment

Describe concrete structure of the present utility model in detail according to Fig. 1.This moulded coal still adopts mineral coal that existing honeycomb briquette and coal briquette use always and clay as raw material, and its coal body is a cylindrical body.For improving the quality and the combustionproperty of coal body, this moulded coal is main raw material with the carbonization stalk, the content of its carbonization stalk is the 30-60% of raw materials used gross weight, the content of clay can be selected according to the requirement of strength of moulded coal, be preferably the 10-25% of raw material gross weight, surplus is selected the high-quality mineral coal of calorific value more than 5000 kilocalories, makes its heating property that had both guaranteed moulded coal, guarantees the intensity of moulded coal structure simultaneously again.The cross section of this coal body is processed into the gear-like structure, combustion processes is carried out around coal body, heat energy is directly acted on the body of heater wallboard by the between cog passage.The specification of its tooth, shape or the number of teeth should be determined with the design requirements of body of heater wallboard.For avoiding the burning of coal body middle part insufficient, evil mind appears, at least one through hole parallel with the axis direction of cylindrical body can also be set in the coal body middle part, to increase vertical combustion channels, it is better to make it ventilation property.Heat production can be used more effectively in order to guarantee, can also according to actual service requirements with the cylindrical body of coal body be processed into greatly, little or big end down frustum body down, feasible big more the closer to the space of body of heater wallboard, the air that provides is many more, burns strongly more.

Above-mentioned straw-carbonized technology is fairly simple, and its standard practice is: earlier with the crop material segment, the stalk of segment is piled up in the carbonization pond again, gone the naked light burning, get final product up to carbonization.

Claims

1, a kind of gear-like clean moulded coal comprises the cylindrical body coal body that contains mineral coal, carbonization stalk and raw clay, it is characterized in that: described coal body cross section is gear-like.

2, gear-like clean moulded coal according to claim 1 is characterized in that: described coal body is provided with at least one through hole parallel with the axis direction of cylindrical body.

3, according to the desired gear-like clean moulded coal of claim 1, it is characterized in that: the cylindrical body of described coal body is the frustum body.