CN209872891U - Production line of pure anthracite - Google Patents
Production line of pure anthracite Download PDFInfo
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- CN209872891U CN209872891U CN201920025428.XU CN201920025428U CN209872891U CN 209872891 U CN209872891 U CN 209872891U CN 201920025428 U CN201920025428 U CN 201920025428U CN 209872891 U CN209872891 U CN 209872891U
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Abstract
Production line of pure anthracite: the pure anthracite is obtained by heating and evaporating low-temperature vaporized coal gas in natural coal in advance. The production method comprises the following steps: the natural coal is heated, and the low-temperature vaporized gas is evaporated in advance, so that the pure anthracite is obtained. The production line comprises a low-temperature gas evaporation furnace. Through which the conveyor belt passes. The periphery of the outer side of the transmission belt part in the low-temperature gas evaporation furnace is provided with a low-temperature gas evaporation shield cover. The surface is provided with a plurality of low-temperature vaporized gas burning holes. An oxygen adding fan is arranged outside the low-temperature coal gas evaporation furnace, and an outlet pipeline of the oxygen adding fan is connected with an oxygen inlet of the low-temperature coal gas evaporation shield cover. The low-temperature gas evaporating furnace is provided with a coal filling hole and a temperature sensor. The smoke outlet is provided with a smoke exhaust tube and a desulphurization device. The blanking end is provided with a sprinkling cooling device. The pure anthracite processed by the production line can completely solve the problem that the sulfur compounds in the anoxic combustion smoke black smoke, without adopting any oxygenation device in the traditional civil coal stove or the medium-sized coal stove, and directly combust by natural oxygen supply.
Description
Technical Field
The utility model belongs to pure anthracite preparation field, in particular to pure anthracite and a production method and a production line used by the pure anthracite. The pure anthracite is obtained by heating and evaporating low-temperature vaporized coal gas in natural coal in advance, namely, the pure anthracite is obtained by using a traditional civil soil coal furnace or a medium-sized and small-sized coal furnace and burning the coal which does not emit black smoke under the condition of utilizing natural ventilation and oxygen supply.
The pure anthracite produced and processed by the production line of the pure anthracite can be used in the traditional civil use
The coal stove or the medium-sized and small coal stove does not adopt any oxygenation device, and can directly burn by natural oxygen supply, thus thoroughly solving the problem that the sulfide gives off black smoke when in oxygen-poor combustion.
Background
From ancient times to present, when all small civil coal furnaces or small and medium-sized coal furnaces are used for combustion, no matter what natural coal is used, black smoke with different degrees can be generated, and sulfur with different contents in the coal can be discharged into the atmosphere together with the black smoke, so that air pollution is caused.
Experiments have shown that approximately 10-25% by weight of coal is directly released to the atmosphere in the form of black smoke in the absence of oxygen and without combustion.
All natural coals, as defined by the black smoke, are currently bituminous coals, which can be broadly classified as long, medium or short (commonly referred to as anthracite) coals.
Analysis of reasons for the generation of dense smoke during coal combustion:
combustible components of coal (I): no matter what kind of natural coal contains three kinds of combustible matters.
1. Containing low-temp. gasified gas (carbon monoxide, methane, hydrogen, etc.) in different proportions,
(vaporization temperature: 200 to 600 ℃ C.), the vaporization of the part is easy and fast, oxygen supply is difficult to satisfy by natural oxygen supply during combustion, and black smoke is particularly likely to be emitted.
2. Contains high-temperature vaporized fuel (vaporization temperature: 600-1000 ℃) with a certain proportion, the vaporization speed of the part is relatively slow, oxygen is supplied by nature during combustion, the supply of oxygen can be basically satisfied, and black smoke is not easy to be emitted.
3. Ultra-high temperature vaporized fuel (e.g., industrial coke) (vaporization temperature over 1000 deg.C), which is part of the process
The vaporization speed of the flame is low, oxygen is supplied by nature during combustion, the supply of oxygen can be satisfied, and the flame is blue flame during combustion.
The reason why the coal and all combustible substances generate thick smoke during combustion is the same because of the deficiency
The oxygen does not burn sufficiently to be expressed in the form of black smoke.
(III) for low-temperature gasified coal gas in coal, once heated above 200 ℃, the low-temperature gasified coal gas can be quickly gasified
The vaporization speed is far higher than the supply speed of oxygen in the air, so that oxygen-deficient combustion is formed, firstly, fuel waste is caused, and secondly, air pollution is caused.
(IV) if the low-temperature gasified gas contained in the coal has a small proportion, the coal can be heated to 200-600 DEG C
The gasification amount of the fuel gas is small, the fuel gas depends on natural supply in air, and although the oxygen supply amount is not enough, the discharged black smoke is relatively little, so the coal is traditionally called anthracite. If the proportion of low-temperature gasified coal gas contained in the coal is too high, the gasification amount of combustible gas is too large and the gasification speed is too high under the condition of 200-600 ℃, the requirement amount of the gasified coal gas which is evaporated and gasified cannot be met far by only depending on natural oxygen supply in the air, a serious anoxic combustion state can be formed, and most of the combustible coal gas is directly discharged into the atmosphere in the form of black and dense smoke under the condition of no combustion under the condition of lack of oxygen, so the coal is generally called as long bituminous coal or big bituminous coal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pure anthracite, a pure anthracite production method and a production line used by the pure anthracite, which have simple manufacturing method, convenient use equipment, easy operation and easy industrial production.
The technical scheme is as follows:
the pure anthracite is obtained by heating and evaporating low-temperature vaporized coal gas in natural coal in advance.
The production method of the pure anthracite comprises the following steps:
the natural coal is heated, and the low-temperature vaporized gas is evaporated in advance, so that the pure anthracite is obtained.
The heating temperature is 550-1000 ℃.
The low-temperature vaporized coal gas after evaporation is added with sufficient air or oxygen for mixed combustion.
The heat quantity obtained by burning the low-temperature vaporized gas in the low-temperature gas evaporation furnace is used for supplementing the heat quantity required by the low-temperature gas evaporation furnace. The coal consumption of the low-temperature gas evaporation furnace is reduced.
The method comprises the following specific steps:
passing the natural coal through a low-temperature coal gas evaporation furnace with the temperature of 550-700 ℃ from a coal conveying belt
The time is about 15-20 minutes. If the temperature is 700 ℃ and 1000 ℃, the time is about 10-15 minutes.
The low temperature gasified gas is mixed with oxygen fed by the oxygen blower naturally and then fed to the low temperature gasification furnace
The combustion holes of the warm vaporized gas can automatically combust, and the combustion of the low-temperature vaporized gas which accounts for about 10-25 percent (weight) of the total amount of the coal can directly fill the heat required by the furnace temperature, thereby reducing the coal consumption required by keeping the furnace temperature. The two fully combusted gases are exhausted from the smoke exhaust pipe together.
(III) the coal used for heating the low-temperature coal gas evaporation furnace can be processed pure anthracite, and is added through a coal filling hole.
Fourthly, a desulfurizing device is added at the outlet of the smoke discharging cylinder (the vaporization temperature of the sulfur is 444.7 ℃), and the discharged sulfur is discharged
Sulfur dioxide and sulfur trioxide are collected in the form of calcium sulfate, reducing the pollution of sulfur to air.
(V) a water spraying and cooling device is arranged at the outlet of the low-temperature gas evaporation furnace, so that pure anthracite can reach
To ambient temperature for convenient storage and transport.
A production line of pure anthracite.
The technical key points are as follows: comprises a low-temperature coal gas evaporation furnace.
The conveyor belt passes through the low-temperature gas evaporation furnace.
A low-temperature gas evaporation shield is arranged around the outer side of the conveyor belt part in the low-temperature gas evaporation furnace.
The surface of the low-temperature gas evaporation shield cover is provided with a plurality of low-temperature evaporation gas combustion holes.
At least one oxygenation fan is arranged on the outer side of the low-temperature coal gas evaporation furnace, and an outlet pipeline of each oxygenation fan penetrates into the low-temperature coal gas evaporation furnace and is connected with an oxygen inlet of the low-temperature coal gas evaporation shield cover.
The low-temperature gas evaporation furnace is provided with a coal filling hole.
The low-temperature gas evaporation furnace is provided with an ash removing port. The low-temperature gas evaporation furnace is also provided with a temperature sensor.
The smoke outlet of the low-temperature coal gas evaporation furnace is provided with a smoke exhaust pipe, and the smoke outlet is provided with a desulfurization device.
A sprinkling cooling device is arranged at the discharging end of the conveying belt.
The production process of pure anthracite (as shown in figure 1): the production line is continuous large-scale production.
The technical scheme is that the pure anthracite produced by various natural coals and the processing method is burnt in civil soil coal furnaces or medium and small coal furnaces of various types, oxygen is supplied by means of natural ventilation without black smoke to become true pure anthracite, most of sulfur dioxide in the coal is collected, and the pollution of sulfur to the air is reduced.
The advantages are that:
(one) environmental protection significance:
since the human beings find coal, the problem of anoxic combustion is not solved in the use of civil coal furnaces or small coal furnaces due to the combustible coal but uncontrollable oxygen supply, the living environment of the human beings is directly harmed, the body health of the human bodies is harmed, and the progress and development of the human society are directly influenced. Pure anthracite is a necessary product for improving the living environment of people, and is the best choice for replacing various natural coals to protect the environment.
(II) market significance:
1. at present, all kinds of coal in the market are used in civil soil coal stove or small and medium-sized coal stove
10 to 25 percent (by weight) of coal (different in quality of coal in various regions) is not combusted, but is directly discharged into the atmosphere in the form of black smoke, so that not only is air pollution caused, but also economic losses in different degrees are caused.
2. Coal is the highest fuel in cost performance among various heating materials and is not replaceable. Likewise give 1
The natural coal cost is 1-1.3 yuan, the pure anthracite cost is about 1.5 yuan, the liquefied gas cost is 7 yuan, and the electricity is 11.6 degrees (6 yuan for civil electricity and 12 yuan for industrial electricity).
3. According to the national environmental protection policy and the environmental protection requirements of all regions, the pure anthracite coal is the best substitute of various natural coals, has huge market demand and has huge commercial value.
Drawings
Fig. 1 is a schematic structural view of the production line of the present invention.
The low-temperature coal gas evaporation furnace comprises a low-temperature coal gas evaporation furnace 1, a conveyor belt 2, a low-temperature coal gas evaporation shield 3, a low-temperature gasification coal gas combustion hole 4, an oxygen adding fan 5, a coal filling hole 6, a smoke exhaust pipe 7, a desulfurization device 8, a furnace bottom wall 9 and a water spraying cooling device 10.
Detailed Description
Example 1
The pure anthracite is obtained by heating and evaporating low-temperature vaporized coal gas in natural coal in advance.
The natural coal is heated at 600 ℃ to evaporate low-temperature vaporized gas in advance, so that pure anthracite is obtained.
The low-temperature vaporized coal gas after evaporation is added with sufficient oxygen for mixed combustion.
The specific method comprises the following steps:
the natural coal is placed at the feeding end (right side as shown in the figure) of the conveyor belt 2 and conveyed into a low-temperature coal gas evaporation shield cover 3 of a low-temperature coal gas evaporation furnace 1, a plurality of oxygen adding fans 5 blow in oxygen, initial fuel such as anthracite is filled into a coal filling hole 6 to be ignited, the furnace temperature is kept at 600 ℃, low-temperature vaporized coal gas in the heated natural coal is evaporated, and the natural coal is fully combusted at a low-temperature vaporized coal gas combustion hole 4.
The conveyor belt 2 is operated all the time, the natural coal is conveyed out from the outlets of the low-temperature gas evaporation furnace 1 and the low-temperature gas evaporation shield 3 (the outlet of the low-temperature gas evaporation furnace 1) (the whole heating process lasts about 18 minutes), pure anthracite is obtained, and the water cooling device 10 is sprayed at the blanking end of the conveyor belt 2 to spray water to cool the pure anthracite.
After the pure anthracite is obtained, the pure anthracite can be filled into the coal filling holes 6.
The burnt waste gas and the coal-fired waste gas in the hearth are discharged from the smoke exhaust pipe 7 together and are treated by a desulphurization device 8. There is a known source of oxygen to supply oxygen to the oxygen addition blower 5.
The production line of pure anthracite comprises a low-temperature gas evaporation furnace 1.
The conveyor belt 2 passes through the low-temperature gas evaporation furnace 1.
A low-temperature gas evaporation shield 3 is arranged around the outer side of the part of the conveyor belt 2 in the low-temperature gas evaporation furnace 1.
The low-temperature gas evaporation shield cover 3 is in a cuboid shape and is provided with openings at two sides.
A plurality of low-temperature vaporized gas combustion holes 4 are arranged on the front surface and the rear surface of the low-temperature gas evaporation shield cover 3. The furnace bottom wall 9 at the bottom of the conveyor belt 2 is closed.
A plurality of oxygenation fans 5 are arranged on the outer side of the low-temperature coal gas evaporation furnace 1, and an outlet pipeline of each oxygenation fan 5 penetrates into the low-temperature coal gas evaporation furnace 1 and is connected with an oxygen inlet of the low-temperature coal gas evaporation shield cover 3.
The low-temperature gas evaporation furnace 1 is provided with a coal filling hole 6.
The furnace bottom wall 9 is provided with an ash cleaning port. The low-temperature gas evaporation furnace 1 is also provided with a temperature sensor.
The smoke outlet of the low-temperature coal gas evaporation furnace 1 is provided with a smoke exhaust tube 7, a fan is arranged in the smoke exhaust tube 7, and the outlet of the smoke exhaust tube 7 is provided with a desulphurization device 8, which is known in the art.
A sprinkling cooling device 10 is arranged at the discharging end of the conveyor belt 2 outside the low-temperature coal gas evaporation furnace 1 to cool the pure anthracite. (the water spray cooling device 10 is a known technique.)
The bottom of the low-temperature gas evaporation shield 3 is supported on the furnace bottom wall 9 of the low-temperature gas evaporation furnace 1.
The conveyor belt 2 is supported on the furnace bottom wall 9 of the low-temperature gas evaporation furnace 1.
Example 2
Example 2 is substantially the same as example 1 except that: the heating temperature was 550 ℃. Heat for 20 minutes.
Example 3
Example 3 is essentially the same as example 1, except that: the heating temperature was 700 ℃. Heat for 15 minutes.
Example 4
Example 4 is essentially the same as example 1, except that: the heating temperature was 800 ℃. Heat for 12 minutes.
Example 5
Example 5 is essentially the same as example 1, except that: the heating temperature was 1000 ℃. Heating for 10 minutes.
Claims (4)
1. The production line of pure anthracite is characterized in that: comprises a low-temperature gas evaporation furnace (1);
the conveyor belt (2) passes through the low-temperature gas evaporation furnace (1);
a low-temperature gas evaporation shield cover (3) is arranged around the outer side of the part of the conveyor belt (2) in the low-temperature gas evaporation furnace (1);
a plurality of low-temperature vaporized gas combustion holes (4) are formed in the surface of the low-temperature gas evaporation shield cover (3);
at least one oxygenation fan (5) is arranged on the outer side of the low-temperature coal gas evaporation furnace (1), and an outlet pipeline of each oxygenation fan (5) penetrates into the low-temperature coal gas evaporation furnace (1) and is connected with an oxygen inlet of the low-temperature coal gas evaporation shield (3);
the low-temperature gas evaporation furnace (1) is provided with a coal filling hole (6).
2. The production line of pure anthracite coal as set forth in claim 1, wherein:
the low-temperature gas evaporation furnace (1) is also provided with a temperature sensor.
3. The production line of pure anthracite coal as set forth in claim 1, wherein:
the smoke outlet of the low-temperature coal gas evaporation furnace (1) is provided with a smoke exhaust tube (7), and the outlet of the smoke exhaust tube (7) is provided with a desulphurization device (8).
4. The production line of pure anthracite coal as set forth in claim 1, wherein:
the discharging end of the conveyor belt (2) is provided with a water spraying and cooling device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920025428.XU CN209872891U (en) | 2019-01-08 | 2019-01-08 | Production line of pure anthracite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920025428.XU CN209872891U (en) | 2019-01-08 | 2019-01-08 | Production line of pure anthracite |
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| Publication Number | Publication Date |
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| CN209872891U true CN209872891U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920025428.XU Expired - Fee Related CN209872891U (en) | 2019-01-08 | 2019-01-08 | Production line of pure anthracite |
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| Country | Link |
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| CN (1) | CN209872891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666524A (en) * | 2019-01-08 | 2019-04-23 | 孙玉国 | Pure anthracite and its production method and the production line used |
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2019
- 2019-01-08 CN CN201920025428.XU patent/CN209872891U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666524A (en) * | 2019-01-08 | 2019-04-23 | 孙玉国 | Pure anthracite and its production method and the production line used |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20210108 |